• 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:
    A wire stitcher includes a cutter 125 for cutting a length of wire W from a supply thereof and a stitcher head 101, having a former 105 and driver 106, for forming and driving the length of cut wire for binding a set SS of sheets. The length of cut wire which is presented to the head 101 by wire advancing and cutting mechanism 103 is automatically determined in a dependence upon the thickness of the set SS. The mechanism 103 includes a movable gripper block 120 which advances the wire and the cutter 125 is carried on a movable cutter block 121. Movement of the blocks 120 and 121 is limited such as by an inhibitor 124 which is positioned in dependence upon set thickness.
    公开号:SU1477242A3
    申请号:SU792860004
    申请日:1979-12-27
    公开日:1989-04-30
    发明作者:Маршалл Фрэд；Арпад Фогараси Аттила；Эдвард Стоукс Рональд；Джон Ловибонд Майкл
    申请人:Ксерокс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to the printing industry, in particular to stitching devices.
    The purpose of the invention is to improve the performance and reliability of the binding of the foot sheets.
    FIG. 1 is a schematic diagram of a specific photocopier including the proposed device; Fig. 2 is a schematic diagram of one of the variants of the device proposed; in fig. 3 - the same, isometrch; figure 4 - elements of the wire feeder with a drive, isometric; figure 5 is a feeder, feeding the wire to the device, a general view; in fig. 6 is a unidirectional latch for use in the feeder of FIG. 4, the cut; in fig. 7 is a second variant of the device that can be used in the apparatus of FIG. 1, side view; in fig. 8 is a feeder and knife device 7, top view; in fig. 9 is a view along arrow A in FIG. 8; in fig. 10 - the same, side view; in fig. 11 - the same section; Figure 12 is a diagram illustrating the principle of operation of another embodiment of the device used in the output device of Figure 1; in fig. 13 - the main movement mechanism (for a fixed calculation 1
    YU
    CM
    314
    Standing) of the feeder of device 12, side view; Fig. 14 shows the stitching head of the device of Fig. 12 (wire is fed for a length proportional to the thickness of the foot). General view; FIGS. 15 and 16 illustrate the operation of the secondary wire feed mechanism in the device of FIG. 12; in fig. 1 7 - the device according to FIG. 14, in which another type of secondary wire feed mechanism is used, a general view; in fig. 18 is a second variant of the device used in the apparatus of FIG. 1, side view; in fig. 19 - (schematic diagram of the option of the wire feeder and knife.
    A device for stitching a stack of sheets with wire contains a wire feeder with grippers 1 movable in the wire feed direction W, a knife 2 for cutting wire W, a stitching head 3 opposite it for forming and pushing pieces of wire W, clamp 4 for a foot of sheets S, device 5 to adjust the length of the wire feed W depending on the thickness of the foot S, installed between the grippers 1 of the feeder and the knife 2 for cutting the wire, moving in the direction of its feed. The grippers 1 and the knife 2 have a cam drive 6, the opposite working surfaces 7 and 8 of which cooperate with the grippers 1 and the knife 2. The tool 5 for adjusting the wire feed length W is mounted on the clamp 4 for a foot of sheets S to move perpendicular to the direction wire feed W limiter, the working surfaces 9 and 10 of which interact with the corresponding surfaces 11 and 12 of the grips and the knife. The grippers 1 and the knife 2 are provided with locks 13 and 14 of unilateral action. The wire feeder (Fig. 12) can have three successively gripping 1: the first for feeding the wire to a constant length, the second for additional feeding of the wire depending on the thickness of the foot S, and the third is connected to the knife 2, while the second the grip 1 and the knife 2 are mounted with the possibility of equal opposite movements along the wire feed direction W and are interconnected with each other and with the device 5 for adjustment
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    The lengths of the wire feed W. The second grip 1 of the wire feeder W has a drive mechanism 15 including cables 16 and 17 of Bowden connecting it and a knife 2 with a clamp 4 for the foot S.
    The device performs the operation as follows.
    FIG. 1 shows an automatic xerographic reproduction machine 18 with an exit section 19 incorporating the proposed device 20 (device 20 can also be used in other machines in which chopped sheets of material are assembled in the foot), Copier 18 can produce stitched simplex or duplex copies of various originals that can be fed back to the machine by means of the document recycling means 21.
    The device 18 includes a photosensitive drum 22 rotating in the indicated direction in such a way that a portion of its surface along — consequently passes through a series of xerographic processing zones: charge zone A, imaging zone B, zone of development C, feed zone and removal zone D and cleaning zone E.
    The document to be reproduced is fed by the tool 21 from the foot to the plate 23, where it is scanned by a moving optical scanning system so as to create a light image on the drum 22 in zone B. The cut sheets of paper fall into the feed and release zone from the leveling device 24 synchronously with the creation of an image on the surface of the drum 22. The copy sheet is removed from the surface of the drum 22 and sent to the melting zone F. After leaving the melting zone, the fixed copy sheet passes through the curvilinear guide a system indicated by the index 25 including feed rollers 26 and 27 which propel the sheet through a rectilinear guide system
    28k second pair of feed rollers
    29 and 30, depending on which copies are to be made, copies are fed directly to the output section 1 9 by compressing rollers 31 and 32 (simplex) or fed to the upper pallet of the feeder 33 using
    movable guide 34 for making a duplex copy. The movable guide 34 and the feed rollers associated with it are pre-set by the logic device of the machine so as to guide the individual sheets to the desired address.
    The exit portion 19 includes a pallet 35, the support surface 36 is inclined downward in the direction of movement of the sheet to the leveling angle formed by the pressure rulers 37 and 38 located on the same edge on one side of the pallet. Above the upper edge of the bearing surface is a pair of interacting with each other rollers 39 and 40, intended for feeding sheets, which accept sheets moving under the action of compressing rollers 31 and 32 along guide 41. After passing the feeding rollers 39 and 40, sheets with guide 42 are directed to the pallet 35. Angle leveling means 43, e.g. a paddle wheel, is mounted above the surface
    36 so as to slide the sheets into the leveling angle so as to prepare them for receiving the bracket from the device 20. Guide bar
    37 rotates around axis 44 and retracts so as not to hinder the throwing of the bound foot onto the pallet 45. For this purpose, any ejection mechanism, including the drive rollers, can be used.
    Depicted in FIG. 2 and 3, the device 20 includes a stitching head 3, a drum 46 (FIG. 1) from which the wire enters, a passage through a tensioning device (not shown) to the head 3 and the quick-acting flexor 47. The head 3 includes an anvil 48 which supports the wire a shaper 49 with two opposite elements extending the wire around the anvil 48 and giving it a U-shape, as well as a pusher 50 that pushes the prepared bracket through the foot S. The bend 47 includes the body 51, which presses 4, which This presses the foot S to the lower surface of the stitching head 3, inside the body 51 there are folds 52, arranged in such a way as to affect
    772426
    on the legs of the bracket, which pass through the stack of sheets S and enter, into the housing 51 through the slot in the clamp 4.
    The flexor 47 is shown in FIG. 2 in the working position when the foot S is pressed against the head 3 and fixed above the pallet. It is assumed that during the formation of the foot of sheets S
    IQ flexor 47 is lowered in such a way that the pressure surface 4 is below the surface 36 of the pallet 35. During the bonding process, the flexor 47 rises and presses the stack of sheets S
    15 to the lower surface of the head 3 so that the position of the foot is fixed. Changes in the thickness of the foot S are sensed by the drive mechanism 53, which lifts the body
    20 51 bend 47 and the foot is pressed against the bottom surface of the booklet head in order to fix the foot to receive the staple. This mechanism includes a moving ring 54, which raises the body 51, acting through the spring 55 and compressing the latter. The ring 54 itself is moved a fixed distance by the lever 56 (Fig. 4). Spring 55 is located between
    30 by moving the ring 54 and the protrusion 57, and the lever 56, which rotates around the axis 58, is driven by a cam (not shown) acting on the free end 59 of the lever 56. The second end of the lever (Fig. 4) is bifurcated and forms a fork 60, pivotally connected to the moving ring 54. The body 51 of the bend 47 is supported and guided by a pair of levers 61, the ball 40 is fixedly fixed between the body and the frame of the device (not indicated). The mechanism 53 not only perceives and compensates for changes in the thickness of the foot S, but also changes the compressive force depending on the thickness of the latter. Thus, the thinner the foot, the less the spring 55 is compressed and the smaller the compressive force. 52 folds of ears 47 are located in
    0 a fixed position relative to the body 51 so that they are always in the same position relative to the foot, regardless of its thickness.
    The wire feeder includes movable grippers 1, and the device 5 is made in the form of a limiter, which is moved with the help of the flexor 47 depending on the thickness 55
    Sheets of sheet S. The grippers 1 of the device have locks 13 and 14 of one-sided action, which prevent movement of the wire W relative to the grip only in the direction opposite to the wire feed direction. In this way, one-way latches 13 and 14 clamp the wire when the claws 1 move to the left, but allow each of the claws to move relative to the wire W to the right while the other gripper 1 holds the wire.
    there is a right to left, and the knife 2 is hinged on the left end 63, the surface of which is the plane of the cut. The knife 2 is driven by the protrusion 64 on the shaper 49 and returns to its original position at the end of the working cycle under the action of the spring 65. In the grippers 1 there are through holes 66 through which the wire W passes and in which clamps 13 and 14 are unilateral acting, which have a cavity 67 located along from
    At the beginning of the wire feed cycle, Capture 15 versts 66, inside which there is
    a roller 68 slightly spring-loaded with a spring 69. The wall 70 of the cavity 67 is inclined to the axis of the hole 66 in such a way that the cavity 67 tapers in a.
    20 of the wire feed, and the spring 69 presses the roller 68 to the wire. The grippers 1 are driven by the levers 71 and 72, respectively, via the springs 73 and 74 mounted on the rod 62.
    25 These levers are driven by cams (not shown) that move the ends of the levers strictly. the fixed distances, and the changes 1 are set to the positions shown in fig. 1 by dashed lines. To feed wire W, grip 1 is moved to the left, and it. the latch 13 of the single-sided action clamps the wire W. In this case, the wire passes by the knife 2, which is in the initial position, for a length that is determined by a constant value (the length of the backrest plus the doubled bend length) and the foot thickness S from the grips and knife 2, it is retracted from its initial position to a distance equal to the thickness of the foot. The magnitude of these movements, and consequently the length of the wire section fed to the booklet head 3 and subject to cutting with knife 2, is determined by the limiter 5, which limits the movement of the grippers 1 depending on the thickness of the foot of sheets S. In FIG. The 2 solid lines show the grippers 1, which are in their final position after the end of the wire feeding operation. When the device returns to its original position (which occurs after all bonding operations have been completed). the block of segments returns to its initial position, pulling the wire behind itself, the end of which, as a result, always takes a certain position before the beginning of the working cycle, and the second gripper 1 moves back along the wire to its initial position.
    The wire feeder is shown in FIG. 5 and 6, in which it is seen that the grip 1 and the cutting unit formed by the knife 2 and the third grip 1 are mounted with the possibility of sliding horizontally on the guide rod 62. In the devices shown in FIG. 2, 5 and 6 wire feed .W OS30
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    Neither the stroke of the grippers 1, caused by the action of the stopper 5, is perceived by the springs 73 and 74. The stopper 5 is installed in such a way that it can slide in the vertical direction along with the bend body 51 (FIG. 2). The surfaces 9 and 10 of the limiter 5 arranged opposite each other and inclined at an angle of 45 in different directions interact with the appropriately inclined surfaces 11 and 12 of the gripper 1, the third gripper 1 and the knife 2. The use of the surfaces inclined at an angle of 45 ° provides a linear relationship between movements of the body 51 of the flexor 47 and the limiter 5 in a 1: 1 ratio.
    The limiter 5 is directly connected to the body 51 of the bend 47 (figure 2), however, other options are possible. For example, the stopper 5 can be mounted on the hinged lever 75 suspended on the stitching head 3 at point 76, and its installation in the working position is carried out using a pusher 77 mounted on the levers 61 connected to the body 51 of the flexor 47 (FIG. .7). The pusher 77 can be adjusted for the exact
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    Neither the stroke of the grippers 1, caused by the action of the stopper 5, is perceived by the springs 73 and 74. The stopper 5 is installed in such a way that it can slide in the vertical direction along with the bend body 51 (FIG. 2). The surfaces 9 and 10 of the limiter 5 arranged opposite each other and inclined at an angle of 45 in different directions interact with the appropriately inclined surfaces 11 and 12 of the gripper 1, the third gripper 1 and the knife 2. The use of the surfaces inclined at an angle of 45 ° provides a linear relationship between movements of the body 51 of the flexor 47 and the limiter 5 in a 1: 1 ratio.
    The limiter 5 is directly connected to the body 51 of the bend 47 (figure 2), however, other options are possible. For example, the stopper 5 can be mounted on the hinged lever 75 suspended on the stitching head 3 at point 76, and its installation in the working position is carried out using a pusher 77 mounted on the levers 61 connected to the body 51 of the flexor 47 (FIG. .7). In this case, the pusher 77 can be adjusted in order to fine-tune the device, for which it is made in the form of a bolt screwed into a bracket 78 and a locked nut. 79. When the 47 bend is retracted, limber 5 is supported by the stop 80.
    FIG. 7, the drive ring of the moving ring 54 is also changed. In order to save space, the finger 81 sliding on the cam working surface is located between the moving ring 54 and the axis of rotation of the lever 56. The movement axis of the finger 81 is shown by the dash line 82. The cam 83 is mounted on the cam shaft 84.
    The length of the wire fed to the stitching head 3 by the wire feeder W is cut, formed and moved as follows. At the same time as the anvil 48, it is pivotally suspended on the axis 85 and is set to its initial position.
    world brackets, but must be moved aside as the brace continues. For this purpose, a spring 86 can be used, strong enough to hold the anvil 48 in a stationary,. state in the process of cutting and shaping. However, at the same time, the force ensuring the further advancement of the bracket should
    be large enough to overcome the resistance of such a spring. It is preferable to use a device in which the anvil
    15 n 48 is locked during the cutting and shaping process and is released by the shaper 49 at the end of its movement. In this case, a relatively weak spring 86 can be used, which
    20 must ensure that the anvil 48 returns to its original position and the anvil 48 functions as a support for the backrest of the bracket in the process of further movement of the bracket. 7 shows
    86 (in fig. 2), is in one of the variants of such a design,
    the locked position, the pusher 50 moves down and presses the wire to the anvil 48. After that, the shaper 49 moves downward. At the first stage of its downward movement, the shaper, with its protrusion 64, acts on the knife 2, which cuts off a piece of wire W of a certain size, and the movement of the shaper, bending the wire cut around the anvil 48, gives it a U-shaped. To hold the wire section during this operation in the proper position, there are guide grooves 87 on the inner walls of the former. At the end of the forming operation, the former is in its lower position, in which the lower ends of its forming elements 49 are lowered below the lower end of the anvil 48 and mc in the immediate vicinity of the sheet of sheets. Now the pusher 50 moves downwards, turning the anvil 48 around the axis 85 and moving the prepared bracket. On the anvil 48 there is a beveled surface 88 (FIG. 3). In the process of moving the bracket, this surface 88 is a support for the back of the bracket. The grooves 87 in the former elements serve as supports for the feet of the bracket. Anvil 48 should be stalled in the process of cutting and foo
    ,

    77242Y
    world brackets, but should be set aside for further pro. movement brackets. For this purpose, a spring 86 can be used that is strong enough to hold the anvil 48 in a fixed position,. states in the process of cutting and shaping. However, at the same time, the force ensuring the further advancement of the bracket should
    be large enough to overcome the resistance of such a spring. It is preferable to use a device in which the anvil 15 n 48 is locked during the cutting and shaping process and released by the shaper 49 at the end of its movement. You can use a relatively weak spring 86, which
    20 must ensure that the anvil 48 returns to its original position and the anvil 48 functions as a support for the backrest of the bracket in the process of further movement of the bracket. 7 shows
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    wherein the locking of the anvil 48 is performed geometrically due to the position of the axis of rotation 85 above the line of force engagement of the pusher 50 and the anvil 48 during the process of cutting and shaping. The lock is unlocked by the protrusion 89 on the former, which interacts with the working surface 90, which is formed on the anvil holder 48.
    The movement of the pusher 49 is performed in two stages. In the first stage, the wire W is pressed against the anvil 48 in the process of cutting and shaping, and in the second stage the already prepared bracket moves. The mechanism suitable for such a movement is based on the use of a hinge, which initially holds the wire against the anvil and then further advances the bracket in the process of continuous movement of the drive lever. The ends of the legs of the brace are bent up and pressed against the bottom sheet of the foot with the ears 52 of the bend 47. The legs of the brace that have passed through the foot then move in air, without encountering any resistance during this stage of the movement of the pusher. This is due to the fact that there are grooves in the lugs 52 of the bending 47 that are able to receive the legs of the bracket of the maximum supposed length. Movement of the ears 52 fold II14
    The body 47 can be carried out by the action of a spring 55 compressed during the return stroke of the flexor casing at the end of the stitching cycle. Meanwhile, the folds of the folds 47 are held in the position shown in Fig. 2 immediately prior to the start of the bend operation. This operation can also be carried out using the device shown in FIG. 7, a cam actuator 83, where the flexibel rod 91 is driven by a bevel of a cam 83 mounted on the same cam shaft 84 on which the cam 92 is mounted, which drives the lever 56 of the driving ring 54. The flexibel rod 91 is driven by the cam 83 by means of the roller 93 driven by this cam, mounted on one end of the crank arm 94, pivotally connected to the bracket 95, extending out and down the body 51 of the flexor 47. On the second end of the crank arm 94, a locking bolt 96 is installed; The bend shaft 91, which fits with the lower end, 47. As shown in Fig. 7, the locking bolt 96 can be adjusted during adjustment of the movement of the ears 52 of the bend 47. Spring 97 divides the ears 52 of the bend 47 and shifts them to the rear position. movement of the drive of the head 3, and the cam 83 is positioned in such a way that the rod 91 of the bend 47 begins its movement only after the prepared bracket completely passes through the stack of sheets. When
    By using the device with a disc cam 83, changes in the thickness of the foot are compensated without changing the sequence of operations over time (except for minor changes due to a change in the relative position of the cam 83 and the driven roller 93) in terms of the movement of the ears 52 of the flexor 47 relative to the movement of the pushers 50.
    FIG. 8-11 show one of the variants of the wire feeder, in which the limiter 5 is pivotally connected to the booklet head 3 at point 76 and is installed by the pusher 7 shown in Fig. 7. The stop 5 is pivotally mounted on the frame 98 of the device, which is fixed in the same way as the head 3 (FIG. 10).
    d 5 0 5 0
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    The frame 98 includes plates 99 and 100 and transverse rods 101-104, of which the rods 102 and 103 serve as guides for the feed and cutting blocks, and on the rod 104 on the hinge 76 a stop 5 is installed.
    The claws 1 of the wire feeder are constantly pressed to each other by a spring device 105, -a are separated with the help of a cam 6 with two working surfaces during the installation of the limiter 5. The spring device 105 consists of springs 106. Each spring 106 consists of three plates of spring steel thickness of 0.15 mm. One end of the spring 106 is clamped between the holders 107 mounted on the block, and the other end of each spring is twisted and covered by a pin 108 mounted on the gripper 1 of the wire feeder W. On the clamps 1, there are rollers 109 driven by the working surfaces 7 and 8 of the cam 6 and BUT. The cam 6 is asymmetrical, since the necessary stroke of the wire feeder is greater than the stroke of the block of segments (Fig. 8).
    In FIGS. 8-11, the feeder and the cut-off block are shown in the most shifted position (which corresponds to the longest wire feed length), in which the stopper 5 contacts the grippers 1 but does not move them apart, so that the minimum distance between them is determined by the width most the narrow part of the cam 6. In the initial position at the beginning of the wire feed cycle, the clamps 1 are maximally moved apart, since the driven rollers 109 and 110 are in the widest part of the cam 6. When the wire is fed from left to right in the process of how the clamps 1 is consumed, the block of segments t is not wire to the right (the latch 14 is unilateral acting locked) and the feeder
    slides relative to the wire W to the left (latch 13 unilateral action is open). With the subsequent convergence of the blocks, the feeder pushes the wire (the latch 13 of the one-sided action is locked, the latch 14 of the one-sided action is opened) through the block, which does not move at the moment (Fig.8 and 11). In the last part of the movement of the cam 6 to the position of FIG. 11 block pieces
    retracted (latch 14 unilateral action remains free) to the position shown in Fig. 1, while the feeder finishes its movement to the initial position (latch 13 unilateral action is still locked). If it is necessary to cut off a shorter piece of wire, the return movement of the grippers 1 is limited by the limiter 5. Section 111 of the profile 8 of the cam 6 corresponds to the position of the block of segments with the minimum thickness of the stack of sheets. This not only eliminates the need to move the block segments with a minimum foot thickness, but also provides the ability to fine tune the position of the limiter.
    The limiter 80 of the movement of the limiter 5 with the help of the bracket 1 I 2 attached to the frame 98 (Fig. 9 and 10).
    Each of the grippers 1 consists of two parts connected by bolts 113, and the block of segments formed by the gripper G and the knife 2 also includes an adjustable knife assembly 114 (FIG. 11). The knife 2 is mounted on the end of the hinge lever I 1 5 and is driven by the hinge plate 116, the slot 117 of which includes a pin 118 fixed in the plate 115. The plate 116 is driven by the protrusion 89 (Fig. 7) on the former that enters the slot 119 plates 116.
    All changes in the stroke of the grippers 1 and the knife 2, except those caused by a change in the thickness of the foot, are compensated by a spring-loaded device for moving these elements with dissipation of the potential energy of the spring.
    In those cases when mostly thin feet are stitched together, it is recommended to use another wire feeder, schematically shown in Fig. 12. The stitching head 3 and flexor 47 shown in Fig. 12 are similar to those shown in Fig. 2.
    The wire feeder includes three grippers 1: the first for feeding wire W, with which the wire is fed for a fixed length, the second for additional wire feeding depending on the thickness of the foot S. The grippers 1 have clamps 120 of one-sided action, which clamp the wire only then The corresponding gripper 1 moves in the opposite direction.
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    wire feed. Thus, the one-way latches - seize the wire only when the grippers move to the left (Figures 1 and 12), but allow them to move to the right relative to the wire, while the other grippers 1 hold the wire. At the beginning of the wire feed cycle, the clamps 1 are located at the positions shown in Fig. 12 by dashed lines. In order to feed the wire W the first gripper 1 is moved to the left. In this case, its retainer 120 of unilateral action captures the wire in order to move it past the knife 2, which is in its initial position, to a fixed length d defined by the length. back brace plus doubled bend length. After this, the second and third wire grippers W are set in motion. The second grip I feeds the wire W a length equal to 5 the thickness of the foot, and the third grip 1 and the knife 2 (block of segments) are moved back from their original position to the distance equal to the length of the foot. The magnitudes of the movements of the grippers I of the additional wire feed and the length of the wire segment coming to the booklet head 3 for the knife cut by the knife 2 determined by these movements is determined by the movement of the drive device 5 acting on the second and third grips 1 depending on the thickness of the foot. at the end of the wire feed cycle, shown in FIG. 12 solid lines. When the device returns to its original state (after the stitching cycle ends), the cut-off block returns to its original position, pulling the wire behind it, so that the end of the wire always takes the same position at the beginning of the feed cycle. In this case, the first and second grippers are moved to their original position relative to the wire.
    In the preferred embodiment, the first gripper 1 feeds the wire at a constant length determined by the sum of the length of the back of the bracket, twice the length of the bend section and twice the minimum thickness of the foot, and each of the remaining grips 1 is moved to a distance equal to the foot thickness minus the minimum thickness of the foot.
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    In this device, when stitching a foot of minimum thickness, the second and third grips 1 do not move at all. Single-sided tabs 120 that are included in the wire feeder are similar to the tabs shown in Fig. 3.
    The dotted lines in Fig. 12 show that the driving device 5 is connected with the second and third grippers 1 in such a way that the vertical movement of the driving device 5 is converted into equal and oppositely directed movements of these grippers along the wire.
    The length of wire fed by the feeder to the stitching head 3 is cut, formed and inserted into the foot.
    The wire feeder of this embodiment is shown in FIG. 13-16. The first wire grip 1 W, with which the wire is fed to a fixed length shown in FIG. 13, is located before the second and third gripper 1 of an additional portion of the feed, which are mounted on the stitching head 3 (FIG. 14). The first grip I includes a rod 121, the lower end of which is hinged to the device frame 98, and at the upper end of which there is a slot 122, which includes the pin 123 of the crank 124, while rotating, the rod 121 oscillates about the axis 125. The position of the block The first gripper 1 is matched with an elastic guide wire 126, extending from a spool of wire, and a rigid guide tube 127 extending towards the stitching head 3. The first gripper 1 is located between these two tubes. The wire is fed to a fixed length d when the crank 124 is rotated one turn. Crank 124 is driven by an engine mounted on the rear side of bracket 128. The motor is controlled by a microswitch 129. The wire is fed forward during the first half of the crank 124, and during reverse movement of the connecting rod 121, the wire brakes and is restrained from reversing by unilateral action 120 .
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    The additional wire feed, as well as the installation of the knife 2, is carried out by means of adjusting the length of the wire feed shown in FIG. 14-16. The movement of the second and third grippers 1 of the feeder is determined by the movement of the device 5, which is proportional to the thickness of the foot. The drive device 5 (Fig. 7) includes a rod 130 attached to a moving ring 54 and a sliding 47 sliding in the guide casing 51. The vertical movement of the rod 130 is converted into a horizontal sliding movement of the blocks of the second and third grippers 1 along the wire using the following mechanism . The rod 130 raises and lowers the lever 131 pivotally attached to the body 52 of the bend 47, which in turn acts on the crank 132, which through the plunger 133 acts on the rail 134. The rail 134 is rigidly connected to the block segments formed by the third gripper 1 and a knife 2. This unit, as well as a device for adjusting the wire feed length W, are mounted with the possibility of sliding on the guide 135 attached to the caliper 136. The second and third grips 1 are installed so that they can converge and diverge, moving along wire feed directions. A second rail 137, which is rigidly connected to the second gripper 1, via gear 138 mounted on an axis fixed in the slide 136, is connected to the rail 134. The upward movement of the rod 130 causes the gear-and-gear mechanism 134, 137, 138 to move, which moves the second and third grippers 1 at equal distances towards each other, and these distances are proportional to the amount of movement of the rod 130 (Figs. 14 and 18).
    With a minimum foot thickness (Fig. 15), the wire is fed by the first gripper 1 of the feeder, however, the movement of the rod 130 is not enough to affect the crank 133 and the second and third grippers 1 of the feeder remain stationary, so that the wire is fed only by the first gripper 1 of the feeder. The wire is oriented relative to the center line CL of the stitching.
    heads}. 1l thicker stop rod 130 acts on a crooked thorn 132, which, in turn, causes the pinion gear 134, 137, 138 to reduce the second and third grips I of the feeder (in Fig. 16 / in such a way that after the third I open additional sections of wire T1, T2, the size of which is equal to the thickness of the foot. Since the block is cut back to a distance equal to the feed of the second gripper 1, the wire remains oriented relative to the center line CL of the stitching head, and the prepared piece of wire and centered on that line.
    The rack and pinion mechanism in the embodiment of FIG. 17 is replaced with an endless belt 139 covering the rollers 140 and 141 mounted on the caliper 136, and the movements of the second and third grippers 1 of the feeder in opposite directions are provided with clips 142. In this case the crank 132 drives video 140.
    In a particular embodiment of the device, staple wire (diameter 0.6-0.7 mm) is supplied on coils with a diameter of 300 mm and a capacity of 2 kg, which is enough for approximately 40,000 brackets. The main wire feed is carried out at a length of 23.5 mm, and the feed is proportional to the thickness of the foot up to 7.5 mm. The main feed is carried out in 150 washes, and the stitching cycle takes another 300 ms, which includes the time spent on the operation of proportional wire feeding,
    In the device according to FIG. 18, the wire feeder includes a rod 130 and a lever 131.
    In the embodiment of FIG. 19, the second gripper 1 is installed slidably on the first / gripper,. 1 and on both of these grippers 1, there is one latch 120 of unilateral action (gripper). During the main feed process to the fixed main and secondary feed lines, the first and second grippers 1 of the feeder move as a single unit and can be driven by the actuator of FIG. 12 or cam (not shown). The movement of the second and third grippers 1 wire feeder
    10 15
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    30 o
    with
    35
    0
    with cables 16 and 17 of Bowden connecting grippers 1 with a moving flexure ring 54. To return the blocks of the second and third grippers 1 to their original position at the end of the feed cycle, serve springs 143 and 144. The ends of two Bowden cables are attached to diametrically opposite points of the moving ring in order to equalize the load on the ring.
    The above has been the case with a flat base brochure; however, the basic provisions can also be used when applying a saddle base brochurer. The stitcher can be moved to change the position of the bracket or to hold one table with more than one bracket. In addition, two or more booklet makers can be used, which themselves can be mobile and work in tandem; in this case, some drive elements may be common in order to avoid duplication.
    In addition to the booklet head, it can also be fixed by a flexor, and the bend of the staples can be carried out by the movement of the head.
    The stitching head is above the flexor, but may be provided, and any other orientation, in particular, the flexor may be above the booklet head.
    Instead of a bracket, you can use a wire clip that can be molded both outside and inside the stitching machine. The ends of the legs of the clip or staples can be bent by means of an active flexor with ears that move relative to the ends of the legs, or can be bent by a passive flexor with fixed guiding surfaces. The advantage of the active flexor is that the legs are located in the plane of the foot.
    The constant length to which the wire is fed can be determined by the length of the backrest plus one bend length, in which case the movement of the knife should include one bend length. In addition, the length of the wire segment may vary so as to provide a constant bend length regardless of the thickness of the foot, or the length of the bend may vary depending on
    the thickness of the foot with it h, (s on it itje thick legs dpina byp more.
    权利要求:
    Claims (6)
    [1]
    1. A device for stitching sheets with a wire, containing a wire feeder with grippers moving in the wire feed direction, a wire cutter, a stitching head opposite to it for forming and pushing the wire pieces, and pressing for the foot of sheets, so that in order to improve the performance and reliability of the sheet stapling, it contains a device for adjusting the length of the wire as it is being fed, depending on the thickness of the foot, installed between the grippers by feeding bodies and knife for lengths of wire, moving in the direction of wire feed.
    [2]
    2. The device according to claim 1, about tl and - in that the knife and the gripper of the feeder have a cam drive, the opposite working surfaces of which interact respectively with the grips and the knife.
    [3]
    3. The device according to claim 1, characterized in that the device for adjusting the length of the wire feed is mounted on the press for the stack of sheets
    27
    P
    /eight
    34
    28
    2S
    0
    five
    0
    five
    0
    five
    With its possible movement perpendicular to the direction of wire feed, there is a limiter, the working surfaces of which interact with the respective surfaces of the grippers and knife.
    [4]
    4. Device on PP. 1-3, which is based on the fact that the grippers and the knife are provided with single-action locks.
    [5]
    5. A device according to claim 2, in which the wire feeder has, in succession, a gripper: the first for feeding the wire at a constant length, the second for further feeding the wire depending on the thickness of the foot, and the third is connected to the knife, the second the gripper and knife are installed with the possibility of equal opposite displacements along the wire feed direction and are interconnected with each other and with a device for adjusting the length of the wire feed.
    [6]
    6. The device according to paragraphs. 1-5, which is based on the fact that the second gripper of the wire feeder has a drive mechanism that includes a Woden cable connecting it and a knife to the foot presser.
    Priority points:
    12/29/78 in paragraphs 1,2,3,4,6
    04/27/79 on Clause 5
    nineteen
     CV
    P
    57 W hell 39 M
     36
    go
    Phie 1
     SB
    hS
    /
    BE St & 6h
    OS
    2-gpf
    five/
    Fi.by
    62
    Fig 5
    CN -3- CXI
    r r- r
    CSi
    R r
    r r
    П 113 68
    99
    75
    FIG. ten
    v X
    12s
    /
    125
    FIG. 13
    (N1
    ooc
    R
    very good
    s
    &"; 7
    Compiled by N. Kalashnikova Editor L. Pcholinsk Techred M. Dydyk Korrektor M. Maksimishinets
    Order 2169/58
    Circulation 330
    VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
    Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101
    FIG. nineteen
    Subscription
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    同族专利:
    公开号 | 公开日
    EP0013164B1|1984-09-12|
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    MX152703A|1985-10-18|
    BR7908563A|1980-10-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR651636A|1928-03-17|1929-02-21|Improvements to stapling machines|
    GB692106A|1950-08-30|1953-05-27|Vickers Armstrongs Ltd|Improvements in or relating to manually or foot operated wire stitching machines|CA1154913A|1979-10-30|1983-10-11|John L. Webb|Copier/finisher configuration|
    US4313670A|1979-10-30|1982-02-02|Xerox Corporation|Reproduction machine with a pivotal stapling device|
    US4546910A|1982-07-07|1985-10-15|Xerox Corporation|Active clinchers and wire stitchers incorporating same|
    DE3614320C2|1986-04-28|1988-12-01|Ernst Nagel Gmbh & Co Kg, 7000 Stuttgart, De|
    US4708277A|1986-11-28|1987-11-24|Am International Incorporated|Stitching head|
    FR2681000B1|1991-09-05|1994-03-11|Sodeme Developpement Mat Emballa|STAPLING HEAD WITHOUT FRICTION.|
    DE19712863C2|1997-03-27|2001-01-25|Eastman Kodak Co|Method and device for operating a device for stapling sheets|
    DE19712876B4|1997-03-27|2005-03-17|Nexpress Solutions Llc|stapler|
    CN104284781B|2012-05-07|2016-08-24|东海日历株式会社|Binding apparatus and the method for stitching of paper using|
    CN105819014B|2016-05-09|2017-11-24|青岛惠运办公科技集团股份有限公司|Roller coil detachment device and roller coil splitting stitching integrated machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB7850328|1978-12-29|
    GB7850325|1978-12-29|
    GB7914810|1979-04-27|
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