前苏联专利SU1672928A3 Yarn infeed mechanism for textile machines

专利PDF首页>>前苏联专利

专利附录

专利说明

权利要求

类似技术

同族专利

引用文献

法律状态

优先权

专利摘要:
The invention relates to the textile industry and concerns the construction of a storage drum for feeding yarns to a knitting or weaving machine. The purpose of the invention is to increase the reliability of work. The threading mechanism with the accumulator has a storage drum, which consists of several oblong, located at the same radial distance from the drum axis and evenly distributed along its perimeter thread-folding elements, which in the pickup area of the thread form the bearing surface for a few turns. To provide a simple, low inertial mass construction of the accumulation drum, the yarn folding elements are formed by narrow brackets that are rigidly fixed to at least one end on the drum case and the other end is centered on the drum case or the part connected to it. Staples are made L-or U-shaped and at least partially elastic-spring. 13 hp f-ly. 21 il.
公开号:SU1672928A3
申请号:SU853961701
申请日:1985-10-10
公开日:1991-08-23
发明作者:Меммингер Густав；Розер Эрих
申请人:Густав Меммингер (Фирма)；
IPC主号:

专利说明:

The invention relates to the textile industry and relates to the construction of a storage drum for a yarn before feeding it to a textile machine, in particular, a knitting or weaving.
The purpose of the invention is to increase the reliability of the device.
FIG. 1 shows the filing mechanism, horizontal projection; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows an embodiment of a storage drum, side view; in fig. 4 - the same, with a different implementation of the brackets of the drum; in fig. 5 - accumulative drum with a conjugated yarn separator, horizontal projection; in fig. 6 - section bb in figure 5; in fig. 7 is an embodiment of the threading mechanism, side view; in fig. 8 shows an embodiment of a drum bracket; in fig. 9 is a section bb of FIG. eight; in fig. 10 - drum, axial section; in fig. 11-18 - embodiments of brackets; in fig. 19 is a view of FIG. 18; in fig. 20 — drum, side view, partially cut; on fig.21 is the same, partial axial section.
The threading mechanism (Figs. 1 and 2) has a holder 1 in the form of a rectangular box-shaped body, which with the help of fastening means can be
With vl
1C
WITH
to
oo

G4
3
fixed, for example, on a circular knitting machine. In the flat wall of the bottom 2 of the holder 1, a recess 3 in the form of a circular cylinder is formed from the outside, into which a storage drum 4 projects, which is coaxial with the recess 3. The storage drum 4 has a pot-shaped body 5 made of synthetic material, which with the help of hub 6 mounted on the shaft 7 of the electric motor, in particular, the stepper motor 8. The shaft 7 is discharged outside through the opening 9 in the bottom 2 and is connected to the holder 1 by means of the fastening element 10. The housing 5 of the drum 4 carries several radial distance from the axis 11 of the drum 4 and brackets 12 uniformly distributed around the circumference, which are bent from a thin spring wire with a smooth outer surface. Spring wire may have a circular cross-section or be shaped, for example, having a cross-section in the shape of a polyhedron. The spring wire can have the same damping properties along the entire length of the clips, however, such variants are possible in which each clip 12 by appropriate local hardening can be spring-loaded only in places.
Each spring strap 12 has a generally L- or U-shaped form and generally straight, parallel to the axis 11 of the drum 4, the thread pickup area 13 with the thread-folding section and the inlet section adjacent to it on the thread feeding side. (2 above) radially tapering inward zone 14, which in an arc 15 passes into horizontal first knee 16 of bracket 12 that passes mainly in radial direction relative to axis 11 of drum 4. On opposite side of first layout 13 of bracket 13 opposite to first knee 16 of bracket each bracket also has a second knee 17 of the bracket 12, which extends mainly in the radial direction relative to the axis 11 of the drum 4. The first and second knees 16 and 17 of all the brackets are located along a circular cone which is coaxial with the drum B 12 are located on a circular cylinder, also coaxially with the drum.
sixteen
ten
20
25
$ 72928
The brackets 12 have adjacent to their first knees m 16, respectively, bent rectangular fastening ends 18, by which the brackets are embedded in the side surface 19 of the housing 5 of the drum 4 extended in this area so that near the attachment point the lateral installation of the first knee 16 is provided at the same time.
With their second knees 17, the staples 12 are located in slots 4 passing in a radial direction relative to the axis 11 of the drum 4 x 20, which are formed in the bottom of the body 5 of the drum 4 and whose width is somewhat greater than the width of the staples 12. They also have their second knees 17 with a preliminary axial stress on the support surface 21 formed in the wall of the bottom of the body 5 of the drum 4. Thus, each clip in the zones of its first elbow 16, i.e. on the feed side of the thread, is fixed to the body 5 of the drum 4, while the other end of the clevis 12, i.e. in the area of the second elbow 17, mounted on the housing 5 of the drum 4 with the possibility of limited movement in the radial direction, while the walls of the slots 20 contribute to the lateral centering of the brackets 12 in this zone.
The housing 5 of the drum 4 in the zone of its bottom has a protective part 22 made in the form of a truncated cone, inside of which there are slots 20 and which prevents the thread from adhering to the ends of the second knees 17 of the staples 12. Next to the cumulative bar 4Q 4, thread support pipes are located on the holder 1 and the diverting elements in the form of fixed lugs 23 and 24 for feeding and discharging the yarn from the drum 4. In addition, the holder 1 is mounted
dg nitenate resident 25 and eyelet 26 for entering the filament 27.
The thread 27 wound from the supply spool 27 through the eyelet 26 to enter the thread, nitrate resident 25 and the eyelet 23 to feed the thread 27 is wound tangentially onto the inwardly tapering zone 14 of the staples 12 driven by the storage drum 4 by the motor 8. staples 14 are axially downward, shifted to the straight patch area 13 of the thread, where they form a cumulative coil, indicated by 28, consisting of some 30
50
55
how many turns of the thread. From the accumulation hank 28, the thread 27 is then unwound and fed to the machine through the eyelet 24 of the release.
Staples under the influence of tension caused by the yarns of the accumulation skein 28 can elastically rotate inward around their arcuate knees 15, and the second knees 17 staples 12 that are somewhat inclined and under the prestress slide along the supporting surface 21 inwards. The slots 13 of the layout of the staples 12 slightly incline to form a tapered lateral surface coaxial with the drum 4, which favors the movement of the accumulation skein 28 in the axial direction.
The elastic resistance that the staples have to this deflecting movement of their layout zone 13 does not only depend on the damping properties of the staples 12 in the zones of their elastic knees at the corresponding arc 15, but also on the pre-stress with which the second knee
17 skid 12 is supported on the support surface 21. By appropriate selection of the sizes of these quantities, it is possible, if necessary, to take into account the special properties of the reeled material. In this case, variants are also possible in which the brackets 12 are rigidly connected to the casing 5 of the drum 4, so that they are not capable of performing any elastic deflection movements.
In the side surface and in the bottom wall of the drum casing, slots 29 arranged respectively between adjacent brackets 12 are formed in the form of slots, which, on the one hand, reduce the already small mass of the storage drum 4 on the one hand, due to material savings, and on the other hand, with the rotating storage drum 4 act as a fan with which the motor 8 is cooled and ventilated and blown in the outer radial direction of the thread of the accumulation coil 28.
In the embodiment of FIG. 3 U-shaped wire staples 12 with their fastening ends
18 inserted in the corresponding parameters
five
0
five
0
five
0
five
0
five
The solid axes are drilled holes of the side surface 19 of the housing 5 of the drum 4. Their first elbows 16 are centered in the lateral direction in the radially directed depressions in the form of the groove 30 of the end surface of the drum housing. A retaining ring 31 is intended for the fixed locking of the shackle, which with its flange 32 is inserted into the drum casing and is fixed with respect to the casing of the drum casing by means of a circular thickening 33 and a mating recess. With their second, almost horizontal knees 17, the staples 12 are inserted into the slots 20, which, in the zone of the bottom wall, provide lateral centering of the staples 12.
On the side of the layout area 13 facing the first lap 16 of the bracket 12, the bracket 12 is supported radially outwardly against the drum casing 4. To this end, a coaxial support disc 34 made of synthetic material is mounted on the bottom wall of the drum 4 casing, which has an outer circular surface an annular flange formed in the form of a thickening 35, which is formed inside with a circular bearing surface 36, on which brackets 12 are supported at the lower end of the laying zone 13. The latter are elastically stressed in the outer radial direction This means that, due to the appropriate choice of the parameters of this pre-stress, the elastic resistance that the clamps exert due to the slight deviation of their pick-up zones can be again determined.
A ring 37, made of spring steel, is planted on the thickening 35 of the bearing disc 34, for a converging thread, the surface of which can be treated with a coating and which, when the supporting disk 34 is detachable, holds the parts of the connector.
The collecting drum 4 according to FIG. 3 is suitable for winding a yarn with an end through an end from an accumulating hank 28. A winding yarn passes through a ring 37 dl, a yarn descent which is made of a durable material, and thereby ensures a perfect yarn descent.
In the embodiment shown in FIG. The 4 embodiments of the storage drum 4 of the staple 12 consist of mainly U-shaped flat sheet metal forming members, which can also be made of synthetic material. On each bracket 12 corresponding to the layout zone 13, the bracket portion 38 is formed using external narrow end planes in the form of fan blades, which are formed on one side by a cantilevered arm, tapering inwards zone 14 with a narrow cantilevered first knee 16 of the bracket 12, and on the second side there is also a cantilevered second narrow bend 17. While the cramp part 38 is basically rigid, at least in the area of the arc 15 or close to the clamping point of the first bend 16 there is an elasticity that allows The radial outward pressure of the bracket 12, so that it is under the action of elastic prestressing adjacent to the support surface 36 of the backing disk 34 and under the action of the forces generated by the turns of the accumulator skein 28, can deviate in the inner radial direction around the arc located 15 articulations.
In this case, the first knees 16 of the staples 12 are also installed in the corresponding recesses 30 in the end wall of the casing of the drum casing 4. They are permanently fixed by welding the synthetic material in the area of the recesses 30.
The air flow through the slots 39 in the supporting disk 34, which act as fan blades of the staple part 38, simultaneously forms the bottom wall of the drum body, enters the drum 4 body and goes radially outward between the staples 12, and the windings of the accumulating skein 28 are blown. as in this case, the casing of the drum casing, which extends from the hub 6, extends only in the zone above the part 38 of the bracket, between the parts 38 of the brackets 12 there are no parts preventing the passage of air.
Staples 12, regardless of whether they are formed in accordance with figure 2 and 3 of the wire or in accordance
0
five
0
five
0
five
0
five
0
five
with FIG. 4, in the form of stamped parts, can have any desired shape without increasing manufacturing costs. For example, it is possible to divide the straight layout area 13 of each bracket 12 by means of the partition zone 40, which protrudes as a projection, into two layout areas 13a and b (FIG. 6) or on the side of the thread of each bracket 12 adjacent to the deployment area 13 of the bracket 12 The radially outwardly extending zone 41 (Fig. 7), the outwardly extending zones 41 of all the brackets 12 are also located along a common imaginary circular cone or other body of rotation. They prevent, if it is necessary with regard to the processed yarn or working conditions, the descent of the lower turns of the accumulation skein 28 from the accumulation drum 4 downwards.
Since the brackets 12 are predominantly bent from wire, for ventilating the turns of the accumulation skein 28, specific blades of the fan 42 are provided, which are formed in an annular space surrounded by zones 13 adjacent to the casing of the drum body and a passage in the radial direction.
If the consumer of the thread in the event of a failure does not accept the thread from the accumulation skein 28 or if for other reasons a disturbance interferes with the shearing in the axial direction of the skein of the thread 28, then it may happen that, with the accumulation drum 4 continuing to rotate on the inward-tapering zones 14 brackets 12 coils are formed, which eventually, if the thread-feeding mechanism is not stopped in time, a thread gets into the space between the bottom wall 2 of the holder 1 and the adjacent end surfaces of the drum 4 body and wound there and the shaft 7.
To prevent this (Figs. 5 and 6), on the underside of the holder 1, along with the collecting drum 4, is a yarn separator 43, which, as can be seen from FIG. 6, the convex nitroseal edge 44 protrudes into a zone of staples 14 tapering towards a circular cone. Spinner 43 has a 1616 sloped passage extending from the thread-splitting edge 44 almost parallel to the zones 14 of the staple
the surface 45, which runs at a small distance from the zones 14 of the brackets 12 and cuts along the thread-splitting edge 44 a curved separating surface 46, so that it is formed, as can be seen in FIG. 6, the wedge-shaped cross-sectional shape.
If in zones 14 brackets occurs
25
piling up the threads of the thread, they che-ig through the thread-separating edge 44 are directed to the thread-separating surface 46, and further thickening along the zones 14.J5 is prevented
Shown in FIG. 1 and 2, the thread-feeding mechanism has its own electric motor 8 for driving the storage drum 4. But in principle, the storage drum 4 can also be driven into rotation by using a driving belt, as is the case in round knit machines to drive all the machines located along the perimeter threading mechanisms. An example of such a threading mechanism is shown in FIG. 7
The shaft 7 carrying the storage drum 4 is rotatably mounted in the holder 1. On the upper side, the holder on the shaft is mounted without the possibility of turning the belt pulley 47. In this case, the storage drum 4 is combined with a conventional dish-shaped nitrate resident 48. The probe that controls the thread feed and the probe controlling the convergence of the thread is designated, together with the loop separation bracket, by 49-51. In this case, the storage drum 4, by its basic design, corresponds to the embodiment in accordance with FIG. 1 and 2, not counting the outwardly lower zones 41 of the brackets
thirty
35
40
The threading mechanism in accordance with FIG. 1 and 2 is independent of the external drive source. Since the electric motor 8 must be designed for a relatively small nominal power, the electrical circuit can be placed in the holder 1. However, due to this arrangement, with this arrangement, additional information can be processed, as a result of which the thread feeding mechanism becomes an autonomous thread-feeding device, which is not only feed the thread continuously or at the exact start-stop mode, but also to maintain a certain pre-set tension of the feed thread during the thread and ensure that The thread pulled from the feed spool is wound on the accumulation drum always with a constant tension, so that the hank structure is perfect and it is stably shifted from the drum
Electrical nitenate resident 25 has a DC motor 8a installed in a suitably drilled holder 1, which carries a second storage drum 4a, similar to the main storage drum 4. It has only a small diameter. His brackets 12 and the housing in FIG. 1 and 2 are shown schematically.
Feed through the eyelet 26, the thread 27 is wound in several turns around the second storage drum by 4a, so that it comes into contact with this drum without slipping. Adjacent motor 8a, which acts as a brake motor
12. The latter are equipped with on their own second 5 strains to set in motion the second knee x 17 correspondingly bent, hook-shaped retaining part 52, which covers below the corresponding retaining surface 53 of the protective part 22a planted on the bottom, n of the drum casing.
the storage drum 4a in the direction opposite to the rotational direction of the storage drum 4. But its torque is much weaker than the stepper motor 8, so that, with the rotating stepping motor, through the thread 27 it moves against its direction of rotation. At the same time, it develops a braking moment, which, through the second storage drum 4a, acts on the thread 27 and this ensures that the thread 27 is wound on the storage drum 4 always with a predetermined length. The splines 12 can be located in radial planes or if the storage drum drive is taken into account. with rotation in one direction, the arrangement may be such that the plane of the brackets passes tangentially to the axis of the drum and coax
,
five
g 5
0
0
five
but forming a circular cylinder or circular cone.
The threading mechanism in accordance with FIG. 1 and 2 is independent of the external drive source. Since the electric motor 8 must be designed for a relatively small nominal power, the electrical circuit can be placed in the holder 1. However, due to this, additional information can be processed with this arrangement, as a result of which the thread feeding mechanism becomes an autonomous thread-giving device, which is not only able to feed the thread continuously or in exact start-stop mode, but also automatically maintain a predetermined tension of the fed thread during the threading and to ensure To fed from the feeding bobbin thread wound on the storage drum always with constant tension, so that the skein is produced flawless structure and its shift provided stably with the drum.
Electric nitenta resident 25 has a DC motor 8a installed in the corresponding bore of holder 1, which carries a second storage drum 4a, similar to the main storage drum 4. It has only a smaller diameter. His brackets 12 and the housing in FIG. 1 and 2 are shown schematically.
Feed through the eyelet 26, the thread 27 is wound in several turns around the second accumulating drum 4a, so that it comes into contact with this drum without slipping. The coupled motor 8a, which acts as a brake motor,
Strengths move second
the storage drum 4a in the direction opposite to the rotational direction of the storage drum 4. But its torque is much weaker than the stepper motor 8, so that with the rotating stepping motor, through the thread 27 it moves against its own direction of rotation. At the same time, it develops a braking moment, which, through the second accumulation drum 4a, acts on the thread 27 and this ensures that the thread 27 is wound on the accumulation drum 4 always with a predetermined tension. The magnitude of the braking torque of the electric motor 8a can be adjusted by appropriately affecting the electrical input parameter (current, voltage) of the electric motor.
Parts of the coupled control circuit are formed in the form of printed circuits, the printed circuit boards 54 of which, together with the case of the signal sensor, are housed in the holder 1, the inside of which is covered with a lid (Fig. 2). The thread reeled up from the storage drum 4 is felt by the spring loaded probe 55, which twists the shaft 56. The latter, through the rotation angle sensor 57, gives a signal about the thread tension, which is fed to the control circuit and controls the electric motor 8 until the thread is constantly tensioned.
In the described accumulative drum na 4, the brackets 12 are made mostly U-shaped. Options are also possible in which the staples 12 are generally L-shaped, i.e. there are no second knees 17 brackets. In this case, the brackets in the lateral direction and radially can be centered, for example, in the corresponding slots x 58 (Fig. 6) of the support disk 34 or the bottom of the accumulation drum 4. In this case, contactless
skimming between the threads of the accumulative coil 28 and the pickup zones 13 of the staples 12, located at a certain distance in the radial direction from the adjacent parts of the accumulation drum 5.
The brackets 12 in the embodiments of the storage drum 4 and 4a are located in planes arranged along the axis 11 of the drums, thereby achieving the possibility of using the storage drums in opposite directions of rotation. But for certain applications, it is preferable that the brackets 12 are positioned with respect to the drum axis 11 somewhat obliquely in planes that intersect the drum axis at a small acute angle. This angle could be in the range of 3-5 °, and other angular values are acceptable. Similarly, staples could be formed with their own zones.
0
five
0
five
spiral ki. Due to the inclined position of the staples 12, it is possible, for example, to prevent the accumulation skein 28 from falling down. However, the brackets are also fixed on the drum body in these cases, the passage is mainly in the direction of the drum axis.
If the staples 12 are made of spring material or spring wire and only their first legs 16, i.e. on one side of the drum casing, fixed rigidly, they in the work make minor oscillations under the influence of the winding and unwinding thread. Therefore, it is essential that the brackets with their pickup zones are evenly spaced around the perimeter of the storage drum 4 or 4a, and the thread should be placed not on a smooth cylindrical surface, but on the corner edges of the polyhedral rotating body formed by the pickup zones. This dynamic characteristic of staples 12 is suitable to greatly facilitate the axial shift of the accumulation skein 28.
FIG. 8-21 show other embodiments of the storage drums 4.
In accordance with FIG. 8 and 9, the drum casing is fitted onto the two-part hub 59a and b of the lower hub 59b of which has a fitted shaped ring flange 60 extending outward, while a hub-shaped annular disk 61 is fitted on the hub upper 59a. Ring flange 60 and the annular disk 61 covers in the area of their attachment or centering points on the drum 4 body the second or first knees 17 or 16 U-shaped wire brackets 12. On the 5 spring brackets 12, a zone 14 which is tapered in is formed, which along the arc 15 passes into the first knee. On the other side of the straight zone 13 of the layout, each bracket 12 has an outwardly bent zone 41 in the form of a bulge adjacent to the second knee 17. Both elbows 16 and 17 have an almost rectangular, folded fastener end 18, both fastener ends 18 of the bracket 12 coaxially with each other, inserted into coaxial cavities of the casing 5 of the drum 4 and held in these cavities by means of an annular flange 60 or
0
five
0
0
five
131
an annular disk 61. While the upper recess corresponds exactly to the diameter of the mating fixing end 18, so that it is fixed, the lower recess has a larger diameter, resulting in the fact that the lower fixing end and, secondly, the second bend 17 each bracket is installed with the possibility of limited movement in the radial and lateral directions. The brackets 12, with their knees 16 and 17, rest in the direction of the axis of the drum onto the supporting surfaces 62 and 63 of the drum housing. They are under such a preliminary tension that both their knees 16 and 17 are pressed against the supporting surfaces 62 and 63 by the action of spring forces. In addition, in the zone of the upper end of the pickup zone 13, i.e., at the transition to zone 14, a radial support 64 of minor length is provided in the axial direction relative to the housing 5 of the drum 4. The brackets 12 during installation can simply be inserted with their fastening ends 18 into the corresponding at deeper.
Inside the arc 15 and the protrusion-curved zone 41, the brackets 12 are arranged coaxially with the drum rings 65 and 66 for separating the thread, which can be made of synthetic material and their task is to prevent the thread from falling between the individual wire brackets 12, entangling it and breakage. In addition, both separating rings 65 and 66, or at least one of them, can serve as a support or stabilization for staples 12, if necessary.
As can be seen from FIG. 9, the lower separating ring 66 in the area of the staples 12 is formed with radially open-out slots 67, into which individual brackets partially enter with their zones 41. The slot width corresponds to the diameter of the staple 12 made of a cylindrical spring wire, the depth of the slots 67 is approximately half the thickness the wire staples 12, which means that the staple 12 approximately half of its diameter is inserted into this slot.
The upper spacer ring 65 can also be made in the same way. However, the arrangement may be such that the separating ring 65 is rigidly connected

ten
five
0
five
2928
0
five
0
14
din.eno with brackets 12, which, for example, can be inserted into this ring.
Since the lower fastening ends 18 of the clips 12 are somewhat movable in the radial direction in their recesses, and this mobility is not limited even to the length of the slots 67, there is an air gap 68 in the lower separating ring 66 to provide mobility between the annular flange 60 and the second elbows 17 of the brackets a few tenths of a millimeter, staples .12 with their straight zone 13 of the thread layout, when viewed from top to bottom, can taper conically, if the radial force caused by the thread winding on the layout area of thread 3 is greater than the preliminary stress clamps voltage. This restriction is limited by the fact that the lower fastening end 18 comes into contact with the frame of the corresponding recess. In such a deformed state, the straight zones 13 layouts of all the staples 12 are located on the side surface of an imaginary circular cone, the top of which is on the axis of the drum on the release side of the thread.
Since the brackets 12 have a support 64 in the radial direction, the inward movement of the lower parts of the brackets 12 remains limited mainly by their layout zones 13 and the adjacent zones 41 having a convex shape. Radial points of the support 64 can not only be located on stiffeners (Fig. 8) but also in the zone formed on the drum body in the form of a fan blade, which in FIG. 8 is indicated with 69 and delimited with the body of the drum by hatching.
In the unloaded position of the clips 12 (Fig. 8), their straight layout zones 13 are usually located along the side surface of the circular cylinder. With a full cumulative coil, and especially with a poorly transported thread, such elastic deformation of the staples 12 may occur, despite their preliminary stress, that the thread moves in the axial direction from the initial winding circle of a larger diameter to the winding circle of a smaller diameter, due to which a slight loosening
It also makes it easier to move the thread.
Similar results can also be achieved when the staples 12 are formed without their own elastic pre-stress, while the lower separator ring 66 is made of elastic material and fixedly connected to the staples 12. to this, the elastic deformation of the separator ring 66 causes the radial elasticity of the staples 12 .
It is also possible that the pick-up area 13 in the unloaded main position of the brackets 12 is located along the side surface of a circular cone, the top of which is located along the axis of the drum on the side of the feeding thread. This means that the winding diameter slightly decreases from the side of the thread entrance to the side of the thread exit. Such an arrangement can be advantageous, for example, when it is necessary to process a smooth and inelastic thread, which by its nature is weakly retained on the staples 12 layout zones 13, so that its turns are prone to creep. Due to the constant increase in the winding diameter along the length of the laying zones of the yarn of the staples 12, a certain compensation is made within the elasticity of the yarn material.
In this embodiment, it is preferable that, with the lower recess of the fastening end 18 adjacent to the radial inner wall, the thread pickup area 13 of each bracket 12 is located along the side surface of the circular cylinder coaxial with the drum.
The convex outward-curved zones 41 of the brackets 12 form, together with the lower separating ring 66, a shoulder and a rewinding of the thread, as, for example, in the embodiment according to FIG. 3 in the form of a gathering ring 37 and, in addition, has the task of holding the falling weakened threads of the thread. This bead of the rewind spool at the same time performs the well-known function of the weft thread invader, as a result of which the excess thread is subjected to the effect of forced gripping. The external diameter of the convex body described by zones 41 of the brackets 12 must be in a certain ratio with the external diameter 50

50
about
with
0
rum of the lower split ring 66. The best results were obtained when the staples 12 in the thickening zone 41 were about half the thickness of the wire embedded in the slot 67 of the split ring 66. This also ensured that when the yarn was unwound from the storage drum manually (for example, if there is excess thread on the accumulation drum), the thread can be easily reeled up without dissolving or breaking.
Due to the open skeletal structure of the storage drum, thanks to the staples 12 and the dividing rings 65 and 66 located at a certain distance side by side, free air flow along the staples 12 of the cumulative turn located on zones 13 of the staples 12 layout is possible. The stiffeners formed as fan blades 69 on the drum housing have, in addition to their function of reinforcing the drum housing, the function of means for supplying air.
The drum body in the embodiment according to fig. 8 is also shown in FIG. 10 without staples 12. From FIG. 10, it can be seen that in the area of the upper bearing surface 62, the first knees 16 of the brackets 12 are respectively equipped with side guide ribs 70, which lead to a mating upper recess and provide lateral centering of the knees 16. While the diameter of the upper cylindrical recess corresponds approximately to the diameter of the bracket 12, the diameter of the adjacent lower cylindrical recess is about 0.15 mm greater than the diameter of the wire
An embodiment in accordance with FIG. 11 mainly corresponds to the embodiment of FIG. 8-10. However, there is a difference in that the brackets along the entire length of their first knees 16, their arcs 15 and their beveled zones 14 rest on divided. if necessary, in the form of ribs zone 69 of the drum housing.
In addition, the brackets 12 with their fastening ends 18 are fixed on both sides in cylindrical recesses, the brackets 12 have respectively the same diameter, which corresponds to the diameter of the wire. Annular
17
the flange 60 is located directly on the second lap x 17. The same separating ring 65 is not indicated.
The housing 5 of the drum 4 extends in its zone 69 shown in FIG. 11, as a solid body over the entire volume, so that the thread cannot pass between adjacent straps 12 in this zone.
In accordance with FIG. 8, one bracket 12 is alternately inserted with its lower second elbow 17 with limited mobility in the radial direction, and the bracket 12 in accordance with FIG. 11 with both ends fixedly mounted on the housing of the drum 5.
The embodiment of FIG. 12 is similar to the embodiment of FIG. 8-11, in which a simpler construction of brackets 12 is provided. Each brace 12 is U-shaped only in the area formed by the first knee 16, the adjoining arc 15 and the inward-inclined zone 14. Adjacent to the first knee 16, the curved fixing end 18 is coaxially with the part formed by the straight zone 13, which is adjacent to the zone 14 and fixed in the corresponding recess of the lower annular flange 60. The diameter of the recess can be, as shown in FIG. 12, equal to the diameter of the mating bracket 12, so that the bracket 12 is fixed fixedly with both ends
However, it is permissible to arrange in such a way that all the depressions, or alternately every second, are similar to the image in FIG. 8, have a larger diameter than the corresponding diameter of the staples 12. Thus, the elastic staples 12, with their lower ends, are installed with the possibility of limited movement in the radial direction.
Above zone 13 of the pickup, brackets 12 are respectively located on a convex around the perimeter of the ring of zones 69 of the housing 5 of the drum 4, which for each bracket 12 has an open groove 71 in which the matching bracket 12 is centered in the lateral direction. Radial fastening of the upper fastening ends 18 of the brackets 12 between the protruding area 69 and the cylindrical flange 72 formed on the annular disk 61, which in FIG. 12 overlaps fasteners

0
five
five
2928
about
18
18 brackets 12. On the cylindrical flange 72 there is an external toothed ring gear with which a driving toothed belt (not shown) can engage. A simpler embodiment of the wire straps 12 is shown in FIG. 13. The wire brackets 12 are only L-shaped, with their first knees 16 respectively resting on the supporting surface 62 of the housing 5 of the drum 4 or connected to the housing of the fastener 73 at a right angle to the axis of rotation of the drum. held by the annular disk 61, and, if necessary, lateral guide ribs for the first knee of the brace may be provided in the annular disk 61 or in the area of the supporting surface 62.
By forming the straight pickup area 13, the knees of the clevis 12 penetrate the circular protruding area 69, which with its conical surface 14 (which can be made wear-resistant if necessary), forms for the converging side of the thread radially inwardly narrowing a zone comparable to area 14 in FIG. 8, cumulative drum. The conical surface 14 may also be interrupted by grooves that divide the continuous protruding zones 69 in the radial plane into a number of separate ribs located at a certain distance from each other with the same overlap.
The brackets 12 with their fastening ends 18 are secured in the cylindrical recesses of the drum casing, the diameter of the recesses being the same as or larger than the wire diameter.
Above the protruding zone 69 loosely 5, brackets 12 are disposed with a portion 74 which forms pinions for engagement with a toothed driving belt.
0
five
0
FIG. 14-16, embodiments are shown in which the pickup zone 13 is not straight, but is concavely curved toward the outer surface of the storage drum. The curvature of the staples 12 is uniform over the entire yarn pickup area, which also covers the inward tapering zone 14, as in the embodiment in accordance with FIG. 8. The advantage compared to solid accumulative drums, which in principle are formed by the type of the winch root, is that the staples 12 have only a point contact with the threads of the thread, and the hank body thus forms a polygon type. Thus, the risk that the threads remain stuck together on the accumulation drum is minimized. Since the staples 12 are made of durable resilient material, the need for further surface treatment to reduce wear is eliminated.
Apart from the curved design of the layout surface, an embodiment in accordance with FIG. 14 corresponds to the embodiment according to fig. 11. The brackets 12 are rigidly fixed at both ends of the drum casing 5, moreover, they are approximately radially supported in the middle part of the layout zone 13 on the supporting disk 75 formed on the drum casing 5, which has grooves on the outer perimeter with open edges centered in the lateral the direction of the bracket 12, the Upper annular disk 61 is made in the form of a cover, so that it closes along the entire length of the first leg 16 of the bracket 12 and even covers the arc 15 of each bracket 12.
In this embodiment, the staples could also be inserted in the area of their lower fastening parts into recesses of a larger diameter with limited movement in the radial direction.
In addition, the brackets 12 can be fixed motionless only in the zone of their lower knees 17 on the drum body, and in the zone of the upper knees 16 to perform with the possibility of limited movement in the radial direction, because the recesses are made of a larger diameter than the corresponding fastening part, and the annular disk 61 located at a certain distance from the first lap 16.
The embodiments with one ends installed with the possibility of limited movement in the radial direction by the clips 12 are shown in FIG. 15 and 16.
In the embodiment according to fig. 15 mainly L-shaped brackets 12, similarly as in FIG.
five
0
five
0
five
0
five
0
five
their second knees 17 and their fastening ends 18 are fixedly mounted on the drum housing, and in the zone of the lower support surface 63 also for each knee 17 there may be an open groove, which is intended for lateral centering of this knee of the bracket. The bottom abutment surface 63 is formed on the shaped part 76 of the drum body, the protruding part 77 extends in the radial direction above the staples 12 and thereby forms a rewinding bead. The protrusion-shaped portion 77 may be provided in the zone of each bracket 12 with a side shoulder 78 similar to the separating ring 66 in FIG. 8.
With their upper fastening part, each clip 12 enters a corresponding recess in an almost circular protruding zone 69 of the drum body. The diameter of each recess is larger than the diameter of the mating bracket 12.
In the embodiment according to fig. 16. The brackets 12 are fastened on the entry side of the thread with their first legs 16, in a manner similar to the embodiment of FIG. 13.
The protrusion-shaped area 69 of the drum casing extends radially above the brackets 12 in the area of its circumferentially oblique circumferential surface 14. This area is equipped with longitudinal slits in which the brackets 12 are mounted so that they can be moved in the radial and lateral directions in areas 14. Their fastening parts of the bracket are installed in the recesses of the drum casing, the diameter of which is larger than the diameter of the brackets.
FIG. 17 shows a simple embodiment of a storage drum 4, which is characterized by a very small inert mass. In OCHOBHON, the and-formed wire brackets 12 with their fastening ends 18 of their second elbows 17 are inserted directly into the corresponding recesses of the same diameter reduced to the dimensions of the hub 6 of the drum casing 4. Other ends of the brace are wrapped around the thread-breaking ring 66. Another thread-breaking ring 65 is also made i in the form of a wire ring and is fixed on brackets 12 in the zone of their second knees 17. If necessary, it can also be on brackets 12 in addition21
sixteen
but a protrusion-shaped zone 4 1 is provided.
FIG. 18-20, an embodiment similar to FIG. 8-Yu. The spring wire brackets 12 do not rest in the pickup zone 13 in the radial direction. The upper bearing surface of their first knees 16 has a slightly smaller diameter, as a result of which it is possible that the spring effect can extend along the longer length of the brackets 12 "Lateral center

stapling 12 on the inside 15 when moving to the second knee
the radially enlarged upper annular disk 61 is provided with grooves into which brackets 12 are inserted in the zone of their arcs 15 and the ends of their first knees 16. The annular disk 61 overlaps radially with brackets 12, respectively, partially overlaps the arcs 15, the outer collar acts simultaneously as a thread separator, which favors threading. In addition, he achieves protection from the top of down fibers.
The lower annular flange 60 also extends in the radial direction to the straight zone 13 of the staples 12 layout. Externally, it has a shell shape and is provided on the inner side with grooves in which lateral centering of the staples 12 is performed so that the staples 12 can move freely in the radial direction. direction. On each bracket 12, the layout area of the Thread at the transition to the second knee 17 is bent obliquely (Fig. 18). In addition, on the outer circumferential surface of the annular flange 60 (Fig. 19), the cams 79 protruding outward in the radial direction are formed, which extend in the form of a wire between adjacent brackets 12. The latter, with their thread pickup zones, are barely half the wire cross section, as indicated in FIG. 19 position 80.
The cams 79 can either extend in a type of a circular arc that is convex outward between two adjacent brackets 12, or, as indicated by the position 81, can be formed between two convex radii with two recessed radii with a recess between them, and
20
25
thirty
35
40
45
50
55
staples 17.
FIG. Figure 21 shows a variant of elimination, in which basically L-shaped brackets are made correspondingly with two diverging first fork - knees 16, which are fixed in a corresponding recess in the upper annular flange 6 in the radial plane relative to the axis of the drum. Adjacent to the direct zone 13 of the layout, each bracket 12 on the opposite side is installed with its mounting part in the corresponding recess of the lower ring flange 60. In this embodiment, brackets 12 can also be images in the form of a spool or rotating parts, so that the first two the knees of the brackets 16 are formed by creating a deformed cone.

权利要求:
Claims (14)
[1]
1. Threading mechanism for textile machines, which contains a cumulative drum with axially located in the axial direction and equal radial distances about the axis and evenly around the circumference with elongated yarn folding elements made in the form of L-shaped staples, each of which has an inclined to the drum axis, the inlet section for the yarn and the adjacent yarn-folding section with the supporting surface for the turns of the accumulation skein, with the staples attached to the barrel casing or to the connector nennoy him hydrochloric hardware items, and the drive of the relative rotation between the storage Baraba prefecture and nitepodvod niteotvod conductive and conductive elements with a defined yarn supply on the drum and Rhone otvo
22
cams are limited by straight chords, as indicated by 82. Peculiar protrusions in the form of teeth or fingers 83 may be provided, which are located in the zone between adjacent brackets 12.
In order to prevent the thread loops between the clips 12 and the annular disk 68 in the area of the cams 79, it is advisable that the cams 79 (FIG. 20) are axially (indicated by 84) higher than the beveled bends of the layout zones 13
0
five
0
five
0
five
0
five
staples 17.
FIG. 21 shows an embodiment of the -. In this case, in the main, L-brackets are made respectively with two first forks, the knees 16, which are fixed in a corresponding recess in the upper annular flange 61 in the radial plane relative to the drum axis. Adjacent to the straight layout zone 13, each bracket 12 on the opposite side is installed with its mounting part in the corresponding recess of the lower annular flange 60. The brackets 12 in this embodiment can also be formed as a spool or rotating parts, so that both first knees of the brace 16 are formed by creating a deformed cone.
Invention Formula
1. The threading mechanism for textile machines, which contains a cumulative drum with predominantly axial direction at the same radial distance from the axis and evenly around the circumference of elongated yarn folding elements made in the form of L-shaped brackets, each of which has an inclination to the the drum axis, the inlet section for the thread and the adjacent yarn-folding section with a supporting surface for the turns of the accumulation skein, with the ends of the bracket attached to the drum body or connected thereto, the fastener and drive relative rotation between the storage drum and nitepodvod conductive and niteotvod - conductive elements established by the yarn supply to the drum and outlet
threads from it, characterized in that, in order to increase reliability in operation, each brace at least at the end located on the side of the inlet portion is connected to the body of the drum or its fastener rigidly.
[2]
2. The mechanism according to claim 1, characterized in that the yarn-folding section is made concave on the rim.
[3]
3. Mechanism on PP. 1-2, characterized in that the brackets are at least partially elastic spring-loaded.
[4]
4. Mechanism on PP. 1-3, characterized in that the brackets on the yarn feed side have a fastening end extending radially relative to the drum body.
[5]
5. The mechanism according to claim 4, characterized in that the fastening ends of the brackets are installed coaxially in the grooves made in the drum housing or in the fastener.
[6]
6.Mechanism on PP. 1-5, characterized in that the bracket at the inlet portion protrudes radially outward relative to the body of the drum.
[7]
7. Mechanism on PP. 4-6, characterized in that the brackets are previously elastically stressed radially outwards.
five
five
0
five
0
five
[8]
8. The mechanism of claim 6, which is based on the fact that the brackets are on them. the exit portions have bent locking ends for contacting with the fastener.
[9]
9.Mechanism on PP. 1-8, that is, each one of the straps has at least two thread-folding portions, separated from one another by a radially protruding separating portion.
[10]
10. Mechanism on PP. 1-9, that is, in that each clip on the yarn side has a projecting radially outward portion.
[11]
11.Mechanism on PP. 6 and 10, characterized in that the brackets are provided with support rings located under the radially projecting portions.
[12]
12.Mechanism on PP. 1-11, characterized in that the drum casing is made of synthetic material.
[13]
13.Mechanism on PP. 1-12, characterized in that the staples on the yarn folding sections are shaped as fan blades.
[14]
14. Mechanism on tt. 1-3, characterized in that the brackets are located in planes extending tangentially to the body of rotation coaxially with the drum.
one
27
2J
76
I / G1 to Cha / 5P /
25 23
26
36 77 5
Aa
2 54 / Pto 8
sixteen
Ml
a
to
ffff 9f
/
h
LLZ a °
gpf
01 9Ј
OS
and
K7b7L9
Si
og
I p
ew
"Zfi / Ql
60 68 63 17 FIG. eight
62 70
596
FIG. YU
6-6
1Z
Fie.9
, 61
16 6S
60
7
L FIG. eleven
61 72
FIG. 12
, 7J 61 62 16
/one /
18
FIG. 13
63
69
IS
z yJ777
77
60 FIG. 15
FIG. sixteen
FIG. 18
1B
17 18
Tz
17
66
m
W 12
FIG. 77
85
P
13
Editor N. Yatsola
Compiled by T. Gavrilov Tehred M. Morgental
Order 2848
Circulation 332
VNIIPI State Committee for Research and Development at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5
Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101
Uttsh,
I 60
13 FIG. 21
Proofreader L. Patay
Subscription

类似技术:

公开号 | 公开日 | 专利标题

SU1672928A3|1991-08-23|Yarn infeed mechanism for textile machines

US7445177B2|2008-11-04|Bobbin and especially a bobbin wound with a yarn

SU1297720A3|1987-03-15|Device for feeding thread on textile machine

RU2115614C1|1998-07-20|Supply reel electromagnetic braking and clutching device

PL88819B1|1976-09-30|

US4660783A|1987-04-28|Yarn brake, particularly for textile machines

AU2002335473B2|2007-09-20|Reinforcement binding machine and reel used for the machine

SU1313338A3|1987-05-23|Textile machine thread-feeding mechanism

GB1577549A|1980-10-22|Yarn delivery apparatus for use with textile machines

RU2162816C2|2001-02-10|Thread feeder with improved motion of thread

US5782424A|1998-07-21|Thread brake

JP2005532481A|2005-10-27|Yarn feeding device

US4160532A|1979-07-10|Knot hole beam

IL44347A|1977-06-30|Thread supply device for textile machines

US6131841A|2000-10-17|Yarn supply apparatus for textile machines

US6725793B2|2004-04-27|Bobbin for sewing machine

JP2994787B2|1999-12-27|Thread cutting device for spindle of spinning or twisting machine

EP0226930B1|1990-04-04|Yarn feeding device

US4351495A|1982-09-28|Thread-storage and delivery device for textile machines

US5497607A|1996-03-12|Two-for-one twisting spindle with bristle ring for smoothing and tensioning threads

US4543778A|1985-10-01|Textile spindle assembly and method

SU565627A3|1977-07-15|Thread feeding device

SU1418239A1|1988-08-23|Device for feeding filamentary material to working member of textile machine

US4328929A|1982-05-11|Yarn delivery apparatus for use with textile machines

KR200145606Y1|1999-06-15|Twisting m/c

同族专利:

公开号 | 公开日

ES8700208A1|1986-07-16|

JPH0157023B2|1989-12-04|

EP0177797B1|1988-10-05|

CN85108497A|1986-08-20|

DE3437252C1|1986-01-16|

DE3565389D1|1988-11-10|

CZ278749B6|1994-06-15|

JPS61106378A|1986-05-24|

US4669677A|1987-06-02|

CN1006725B|1990-02-07|

EP0177797A1|1986-04-16|

DD239619A5|1986-10-01|

HK791A|1991-01-11|

ES547764A0|1986-07-16|

SG28089G|1989-08-11|

CZ724385A3|1994-03-16|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

DE1785508B2|1965-11-11|1975-04-30|Fouquet - Werk Frauz & Planck, 7407 Rottenburg|Self-regulating thread feed device for each individual system of a multi-system circular knitting or circular knitting machine|

SE304070B|1967-03-22|1968-09-16|K Rosen|

BE791857A|1971-11-29|1973-03-16|Rosen Karl I J|THREAD SUPPLIER FOR TEXTILE MACHINES|

CH571601A5|1973-02-20|1976-01-15|Skf Kugellagerfabriken Gmbh|

FR2239882A1|1973-07-31|1975-02-28|Dreville Olivier|Knitting yarn feed control system - has photo-electric monitoring of yarn wound round holding drum for intermittent take-off|

JPS5314748Y2|1973-11-02|1978-04-19|

DE2461746C2|1974-12-28|1984-01-05|Memminger Gmbh, 7290 Freudenstadt|Yarn feeding device for textile machines|

SE7705707L|1976-05-22|1977-11-23|Shelton Alan Ltd|YARN FEEDING DEVICE|

NL7806469A|1978-06-15|1979-12-18|Rueti Te Strake Bv|DEVICE FOR FORMING A STOCK WRAP FROM A WIRE LEADED FROM A STOCK OF YARN STOCK.|

GB2027456B|1978-07-26|1982-09-02|Memminger Gmbh|Thread supply apparatus for circular knitting machines|

US4271687A|1978-08-01|1981-06-09|Memminger Gmbh|Rapid maintenance thread or yarn supply apparatus, particularly for circular knitting machines|

DE2842115A1|1978-09-27|1980-04-10|Iro Ab|THREAD STORAGE AND DELIVERY DEVICE FOR TEXTILE MACHINES|

SE8100561L|1980-02-12|1981-08-13|Shelton Alan Ltd|YARN FEEDING DEVICE|

GB2069016A|1980-02-12|1981-08-19|Shelton Alan Ltd|Yarn feed devices|

NL8100492A|1981-02-02|1982-09-01|Rueti Te Strake Bv|DEVICE FOR FORMING A STOCK WRAP FROM A THREAD FEED.|

CS272202B2|1981-10-13|1991-01-15|Saurer Diederichs Sa|Doser and weft meter for shuttless looms|

US4476904A|1981-12-26|1984-10-16|Kabushiki Kaisha Toyoda Jidoshokki Seisakusho|Device for measuring the length of a weft|

DE3429219A1|1984-08-08|1986-02-20|Sobrevin Société de brevets industriels-Etablissement, Vaduz|THREAD STORAGE AND DELIVERY DEVICE|DE3601586C1|1986-01-21|1987-05-27|Memminger Gmbh|Thread storage and delivery device, in particular for textile machines|

DE3711558C1|1987-04-06|1988-06-23|Sipra Patent Beteiligung|Thread delivery device for knitting machines|

AT45331T|1987-04-11|1989-08-15|Sobrevin|THREAD DELIVERY DEVICE.|

SE8900006D0|1988-12-31|1988-12-31|Iro Ab|DEVICE AT A YARN STORAGE AND FEEDING UNIT FOR TEXTILE MACHINES|

DE4206607A1|1991-09-26|1993-04-01|Erich Roser|THREAD DELIVERY DEVICE FOR THREAD USING TEXTILE MACHINES|

FR2733561B1|1995-04-25|1997-06-06|Alliedsignal Europ Services|AUTOMATIC COUPLING BRAKE PISTON AND PISTON|

DE19546404A1|1995-12-12|1997-06-19|Terrot Strickmaschinen Gmbh|Thread delivery device|

JP4072647B2|1996-01-23|2008-04-09|ニッタ株式会社|Tension adjustment mechanism for cords|

DE19811240C2|1998-03-14|2000-05-31|Memminger Iro Gmbh|Thread delivery device with improved thread run|

US6969217B1|2004-06-17|2005-11-29|Basinger Jon E|Pipe puller|

CN101307524B|2008-06-27|2010-10-20|李伟民|Weft accumulator for loom|

EP2218670B1|2009-02-16|2011-03-16|L.G.L. Electronics S.p.A.|Yarn feeder with lightweight yarn-winding drum|

JP5915219B2|2012-02-07|2016-05-11|村田機械株式会社|Yarn winding device|

DE102012111784B3|2012-12-04|2014-03-27|Memminger-Iro Gmbh|Filament conveying device for conveying filament to points of consumption, has filament sensing element that is rotatably mounted about rotational axis and is provided with cylindrical bearing surface for filaments|

CN106435965A|2016-12-10|2017-02-22|无锡银联齿轮传动机械有限公司|Spindle drum for weft storage device|

法律状态:

优先权:

申请号 | 申请日 | 专利标题

DE3437252A|DE3437252C1|1984-10-11|1984-10-11|Thread storage and delivery device, in particular for textile machines|

[返回顶部]