Device for cutting and weighing non-granulated rubber before feeding it to mixer

专利摘要:
A machine for the automatic preparation of proportions of different caoutchouc blocks for filler mixtures in rubber manufacture has conveyor lines for the different kinds of caoutchouc block, each including a measuring conveyor and a block-weighing conveyor. A movable band saw cuts off portions of the blocks projecting from the measuring conveyors while the latter are stationary, and a storage unit disposed downstream of the conveyor lines stores excess portions of blocks severed in one measuring to deliver them to a collector conveyor during a successive cycle, under control of a processor which memorises the required weights of the different kinds of caoutchouc and controls the conveyors, the cutting unit and the storage unit in dependence upon the stored data and data sent to it by the block weighing conveyors to give the required proportions.
公开号:SU1327783A3
申请号:SU792763349
申请日:1979-05-07
公开日:1987-07-30
发明作者:Ди Роса Гаетано
申请人:Ф.А.Т.А.Фаббрика Аппарекки Ди Соллеваменто Е Транспорто Ед Аффини С.П.А. (Фирма)；
IPC主号:

专利说明:

rotating in the vertical plane of the connecting flaps 49. DK is equipped with a sensor 16 of the angular position of its drive shaft 9 and sensors 24 and 25 for controlling the passage of rubber. To stop the DC after the end of weighing, there is a sensor 26 located at its discharge end. On the vertical side walls of the collecting conveyor 44 is mounted a device 51 for accumulating an excess part of rubber with folding 52 and connecting 53 flaps and
one
The invention relates to the manufacture of rubber products, in particular tires, and is intended for the preparation of batches for a mixer.
The purpose of the invention is to enable the simultaneous preparation of accurate weights for the mixer from different grades of rubber.
FIG. 1 shows the proposed installation in FIG. 2 - the same, top view; in fig. 3 shows section A-A in FIG. 2j in FIG. 4-7 - the same, in four successive phases of the preparation of the sample for the mixer from different grades of rubber in FIG. 8, the automatic control system (schematically), FIG. 9 - part of the installation after one of the conveyor lines for feeding rubber.
An installation for cutting and hanging non-granulated rubber before being fed into the mixer contains a raised platform 1, to which parallel conveyor lines 2 for feeding rubber approach.
Conveyor lines 2 are designed to receive various grades of rubber and transfer them to platform 1, where rubber is dispensed according to a given recipe for delivery to a mixer (not shown). According to FIG. The unit 1 has four conveyor lines 2, therefore, it can meter rubber of four different grades.
Each conveyor line 2 consists of a feed conveyor 3, the longitudinal walls 58, which are a continuation of the vertical wall of the collecting conveyor 44, the installation contains four conveyor lines 2, and the tape pi 38 of the cutting unit 36 are spaced apart from one another. more than the distance between the outer longitudinal edges of the weighing means 32 of the weighing device. The installation has an automatic microprocessor control system. 6 h. p. f - ly, 9 ill.
a conveyor belt 4 and a weighing device 5, which are arranged in series and with a common direction of movement.
The feed conveyor 3 of each line 2 serves to continuously feed rubber bales to the metering conveyor 4, regardless of the change in the frequency of their loading onto it, therefore, a feed conveyor of a known type or a conveyor with intermittent feed can be used as the feed conveyor.
The output ends of the feed conveyors 3 of the rasiololsena near the transversely raised table 6, which is mounted on the platform 1 and on which the corresponding metering conveyors 4 are located. The dosing conveyors 4
perform two functions: feed the weighing devices 5 at a high speed during the first phase of the dosing cycle and control the length of the fragments that are to be cut in
the last phase of the dosing cycle.
Each metering conveyor 4 contains a series of notched picker belts 7 (Fig. 9), each of which at the end of the conveyor closest to the device 5 is in engagement with the gear drive pulley 8, rotated by the shaft 9 closest to the feed conveyor 3 of the end - c a toothed pulley 10 mounted on axis 11. The metering conveyor 4 also contains a series of additional toothed conveyor belts 12 arranged parallel to the toothed conveyor belts 7 in the intervals between them and meshing each with a corresponding toothed belt dnym pulley (not shown) driven in rotation by the shaft 9 and with zubchatm pulley (not shown) mounted on the auxiliary axis 13 located near the device 5 for weighing. The length of the additional conveyor flax 12 is less than the length of the conveyor flax 7, and significantly less than the standard length of the rubber bales. Conveyor belts 7 and 12 have transverse ribs on their outer surfaces in order to increase friction between rubber piles and conveyor belts.
The shaft 9 of each metering conveyor 4 is connected via a gear reducer 14 to an electric motor 15. Instead of the latter, a hydraulic motor can be used.
Each metering conveyor is provided with a sensor 16 for the angular position of the drive shaft 9. This sensor 16 may consist, for example, of a phonic wheel driven by a toothed belt from the drive shaft 2 and associated with a magnetic sensing element. Between the toothed conveyor belts 7 and 12, wheels 17 with radial spikes are installed on the drive shaft 9 and on the additional axis 13 of each metering conveyor 4, designed to penetrate into the rubber and thereby prevent any bale slippage relative to the metering conveyor 4. I
Each of the metering conveyors.
4 is associated with a clamping device 18 for holding rubber bales in place by pressing them against the wheels 17. Each clamping device 18 includes (FIG. 3) a plate 19 provided with non-driving rollers 20 located on opposite sides thereof and several two pantographs 21, and a hydraulic power cylinder 22. Pantographs 21 and a power cylinder 22 are suspended from a transverse support 23 fixed above additional gear conveyor belts 12 metering conveyors 4 Each dispenser 1st conveyor 4 is also equipped with a sensor 24 (photo electric switch), located immediately behind the shaft 9, and the sensor 25


327783,
(photoelectric switch) located directly behind the axis 11. Sensors 25 are adapted to interact with similar sensors 26 located at the discharge ends of the respective 1 1 by-pass conveyors 3. Each weighing device contains several
10 weighing conveyors with toothed belts 27, similar to conveyor belts 7 and 12, and each meshing with two toothed pulleys (not shown). One of the BOV15 wheels is mounted on a shaft 28, and the second is on an axis 29 located near the metering conveyor 4. Shaft 28 is driven to rotate: by engine 30.
The shaft 28 and the axis 29 of each weighing device 5 are rotatably mounted on a movable platform 31 (FIG. 3) of weights 32 intended for weighing bales or portions of rubber bales coming from a corresponding metering conveyor 4. The scales 32 are mounted on a transverse support- table 33, which is mounted on platform 1 and carries on itself four weight indicators 34, located on one side of the table and connected to the respective weights 32.
20
thirty
I
At the end of each weighing conveyor, a sensor 35 is installed (photoelectric off, 35 tel), which is a sensor for controlling the passage of rubber bales.
The cutting device 36 consists of two bandsaws 37 and 38 of a known type, mounted on rollers 39,
40 driven by an electric motor 40 (Fig. 8) to enable it to move along two rails 41 running across conveyor lines 2. Moving from an initial position, in which the working arms 42 and 43 of the band saws 37 and 38 are outside bale trajectory
rubber conveyor line m
mouth
The cutting unit 36 makes a working stroke, cuts a part of the bales protruding from the metering conveyors 4 towards the weighing devices 5, and completes the dosing of the rubber weights, after which the device 36 reverses to its original position. The distance between the blades of belt saws 37 and 38 somewhat exceeds the distance between the outer longitudinal edges of the weighing conveyors.
5 1327783
devices 5 two adjacent conveyor lines 2.
The device has a collecting conveyor 44, moving in the transverse direction past the conveyor lines 5 2 and designed to collect bales or portions of rubber bales coming from the conveyor lines 2 and feed them to a mixer (not shown). The collecting conveyor 44 is located at a lower level than the conveyor lines 2, and is bounded on opposite sides by the vertical side walls 45 and 46 (FIG. 2).
Four pairs of transverse separating walls f5 47 connect the upper edges of the walls 45 and 46. The walls 47 are aligned with the longitudinal edges of the four weighing devices 5, respectively. In the gap 20 between each pair of walls 47, an axis 48 is installed on the inner vertical side wall 46 (FIG. 4) parallel to the upper edge of the wall 46. On the axis 48, the rotary joint valve 49 is highlighted. Each flap 49 can be driven by fluid pressure operated by the executives 47, and can be controlled by the corresponding actuator 55 operating the fluid pressure. Each actuator 55 moves the shutter 52 between a horizontal position (shown by dashed lines in Fig. 3), in which its free end is near a fixed shutter cap 49, and a vertical position in which its free end occupies the highest position (shown by solid lines mi in Fig. 3). Each connecting flap 53 is hinged at one end on a horizontal axis 56 (FIG. 5) mounted on the outer side wall 45 of the collecting conveyor 44 between a pair of respective partition walls 47. The valve 53 may be driven by an actuator 57, which is powered by pressure fluid. moves her
between the horizontal position, at which its free position is near the hinged end of the first flap 52, and the vertical position, at which its free end occupies the lowest positioning mechanism 50 (Fig. 2), which is about the collector rotates the flap from the inclined conveyor 44 (shown in dotted position (shown in FIG. 3 by the lines in FIG. 3). solid lines), in which its free end is located at the discharge end of the conveyor of the corresponding j 5 for vzvepshva audio vertical position (shown in Fig. 3 by dotted lines) at which it svobodnsh.konets occupies the highest position, and vice versa. In a vertical position, it provides the possibility of her part of the device for the hand while cutting rubber bales.
Behind the weighing device 5, along the movement of rubber, on the vertical side walls 45 and 46, a device 51 is installed to accumulate an excess part of the rubber, the valve 49 of the rear passage 40
The accumulation device 51 also contains four fixed longitudinal walls 58, which are vertical extensions of the side wall 45 and are located between each pair of transverse dividing walls 47.
The accumulation unit 51 allows temporary storage of the excess part of the rubber bales coming from the conveyor lines 2 at the end of each dosing cycle and 45 feeds to the collection conveyor 44 at the beginning of the next dosing cycle.
On platform 1, a control panel 59 is mounted, connected to the processor 60, which includes
between the walls 45 and 46. The device is a microprocessor designed for
The device 51 contains four flap valves 52 installed in a row with flaps 49, and four connecting flaps 53 installed in a row with the first flaps 52.
Each first flap 52 is suspended at one end on an axis 54 parallel to the axis 48 and installed in coot. two separating walls 47, and may be controlled by the appropriate actuator 55, operating on pressure fluid. Each actuator 55 moves the shutter 52 between a horizontal position (shown by dashed lines in Fig. 3), in which its free end is near a fixed shutter cap 49, and a vertical position in which its free end occupies the highest position (shown by solid lines mi in Fig. 3). Each connecting flap 53 is hinged at one end on a horizontal axis 56 (FIG. 5) mounted on the outer side wall 45 of the collecting conveyor 44 between a pair of respective partition walls 47. The valve 53 may be driven by an actuator 57, which is powered by pressure fluid. moves her
between the horizontal position, at 5 where its free end is near the hinged end of the first flap 52, and the vertical position, at which its free end takes the lowest position 0 and is near the collecting conveyor 44 (shown by dotted lines in fig. 3) .
0
The accumulation device 51 also contains four fixed longitudinal walls 58, which are vertical extensions of the side wall 45 and are located between each pair of transverse dividing walls 47.
The accumulation unit 51 allows temporary storage of the excess part of the rubber bales coming from the conveyor lines 2 at the end of each dosing cycle and 45 feeds to the collection conveyor 44 at the beginning of the next dosing cycle.
On platform 1, a control panel 59 is mounted, connected to the processor 60, which includes
automatic control of four conveyor lines, 2 and to control the different phases of the dosing cycle. The processor 60 includes a memory for storing weights of various grades of rubber during the dosing cycle and for controlling the conveyors of each conveyor line 2, the device 36 for the hand and
71327783
The shutter flaps of the device 51 for accumulation depending on the stored data and data j. arriving at it from weights 32, associated with the respective weighting with: the conveyors of the devices 5. In FIG. Figure 8 shows schematically the connections of the processor 60 to one of the conveyor lines 2, since the connections of the processor 60 to the other conveyor-fo lines 2 are identical. Processor 60 is connected to the drive motor
61 feeding conveyor 3, with a motor 15 of the device A for dosing,
with engine 30 for weighing konve- f5 yer of device 5 for weighing with sensors 24-26 and 35, with weights 32 and with sensor 16 for angular position of the drive shaft 9 of the metering conveyor
4. The processor 60 is also connected to the motor 20 by the transducer 40, which moves the cutting device 36, and to valves (not shown) for controlling the actuators 50, 55 and 57 of the accumulating device 51.
The installation is equipped with a peripheral track 62 located at platform level 1, from where experienced operators can visually monitor the operation of the installation.
- The installation works as follows.
Using a keypad (not shown), the processor 60 is programmed by entering data related to the recipe name and to the number of mix preparation cycles, and according to the prepared recipe, and (for each of the four lines 2) data related to: the weight of each rubber component of the mixture being prepared; the average rubber bale length, the average rubber weight, and the percentage of error in the final weight.
The entered data is transmitted to a control unit 59 equipped with an indicator (not shown), to which data relating to the recipe name and to the number of cycles at 30 are output.
40
45
cn n
25
c wa
Xi altogether in Ko Chiu or Chin chi nn 60 2 to 49 the same in 25 s from the date of one to two
preparation, and (for each conveyor belt of each of the lines 2 when reaching 2) data showing the weight to be received, and the weight actually achieved at each moment.
After entering the necessary data, the .60 processor automatically determines the validity and accuracy of the entered data and calculates as close as possible to the specified value.
55
 Research Institute of the specified state -.
When the difference between the given weight and the actual weight weighed is less than the weight of one whole bale, on all four conveyor lines x2 the processor 60 starts the cutting cycle. During the cutting cycle, processor 60 calculates the length of that part of the pile for each conveyor line 2.
recipe value is the theoretical number of whole bales to be issued. At the end of this operation, ask o
five
0
0
0
five
five
sessor 60 begins dosing operations.
First, the weighing devices 5 come from the feeding conveyor 3 and the metering conveyor 4 whole bales of rubber 63 (Fig. 4). At this stage, the angular position sensors 16 will turn off the sensors 24, the cutting device 36 and the storage device 51 remain inactive. When the whole bales of 63 m reach to the sensor 35, the processor 60 interrupts the flow to the conveyor line m 2 in order to allow the weights 32 to weigh the bales 63 and transfer the registered value to the processor 60. After the end. The SRI of the weighing operation is the processor 60 re-activates the lines 2 for feeding the bales 63 to the collecting. conveyor 44. At this stage, the shutters 49 are in an inclined position (Fig. 4), and the first flaps 52 are in an upright position, allowing the bales 63 to pass to the storage device 51. The clamping devices 18 associated with the metering conveyors 4 are in a raised position, and the sensors 25 and 26 provide the possibility of creating a gap between the bales passing along the metering conveyor 4. 5 Simultaneous actuation of the sensors 25 and 26 in the presence of two bales 63, running close to each other, causes the drive motor 61 of the feed conveyor 3 to stop. This stage of operation continues until all conveyor lines x 2 receive a weight that is less than the required prescription weight by an amount equal to hydrochloric whole bales. Since such a state does not occur simultaneously on all conveyor lines x 2, processor 60 both keeps (due to stored weight data) a gradual shutdown
 Research Institute of the specified state -.
When the difference between the given weight and the actual weight weighed is less than the weight of one whole bale, on all four conveyor lines x2 the processor 60 starts the cutting cycle. During the cutting cycle, processor 60 calculates the length of that part of the pile for each conveyor line 2.
which must be cut to obtain the desired weight.
The processor 6Q actuates the conveyor lines 2 and causes the presser devices 18 to lower and press the bales on each metering conveyor 4 to the toothed belts of each conveyor 4. Closing the sensor 24 upon arrival of the bale 63
unlocks the reference signal, which is due to the full length of the bale 63. In this case, the processor 60 stops the processor 60 feeds part 6 to
When the angle position sensor 16 signals the presence of a linear movement of the pile, the proportional weighting conveyor of the device 5 is weighted, which weighs part f and delivers it to the device 51 for accumulation.
previously determined bale weight 63, f5 For receiving part b of the bale 63
subject to cutting. At this stage, the cog wheels 17 of the metering conveyor 4 ensure, together with the pressing device 18, the correct correspondence between the angular movement of the drive shaft 9 of the conveyor 4 and the linear movement of the bale 63, preventing any bale from slipping relative to the conveyor 4
Once the bales 63 on the conveyors 4 have reached the exact cutting position, the processor 60 initiates the displacement of the shutters 49 to a vertical position (shown in solid lines in FIG. 5) and actuates the cutting unit 36. After that, the cutting branches 42 and 43 of the band saws 37 and 38 cut the parts of the bales 63 protruding from the metering conveyors 4 towards the weighing conveyors of the device 5 (Fig. 6). As soon as the cutting device 36 returns to its original position, the processor 60 re-activates the conveyor lines 2 up to. pores until all the operations described are cut off / jO, with the parts “x” not reaching the sensors, the only difference being that when the data is input- 35, moreover, when the balance 32 weighs parts about , processor 60 stores weight data. Represented by scales 22.
45
At the end of the weighing step, the processor 60 initiates the movement of the shutters-49 to the inclined position (Fig. 6) and actuates the conveyor lines 2 to provide the supply of the cut parts to the collecting conveyor 44. If the cutting operation of the bale does not provide the desired weight for any component on one or more of the recipes to be prepared in processor 60 to be prepared is set equal to one.
In the event of a break in the supply or malfunction of the processor 60, the data entered or received at various stages of the cycle is transmitted to the memory with 50 information stored when the power is turned off, so that when it resumes operation, it can be started from the moment it was stopped.
Thus, the proposed installation lines x 2, the said cutting cycle allows the bale re-cutting to be repeated, while those combinations with high accuracy of operation
black lines 2 on which a given dosing as in the case when
the weight has already been obtained, the processor 60 remaining
lt inoperative. weight first requires a certain
778310
FIG. 7 shows a situation in which the remaining part of the bale 63 left after the first cutting operation cannot be cut, because its length is too small to ensure effective pressing by its device 18. The maximum length of the part of the bale, below which the clamping device 18 n. em one third
the weighing conveyor of the device 5, which weighs a part of f and delivers it to the device 51 for accumulation.
The first flap 52 of the device 51 is first placed in a horizontal position (shown in Fig. 7); by dashed lines). The first flap 52 is then moved to a vertical position (shown in Fig. 7 by solid lines) in order to transfer part b to the second rotary valve .53, which is held in a horizontal position (shown in Fig. 7 by solid lines). Part b. The bales 63 are stored in the device 51 until the rubber bales are dispensed. Then at the beginning
The next dosing cycle, part b of the bale 63 is fed to a collecting conveyor 44 when the second valve 53 is lowered down to the position shown in fig. 7 dotted lines.
At the proposed facility, it is also possible to carry out a single operating cycle, which is carried out as a trial dosing cycle. During this single trial cycle, all the described operations are carried out, with the only difference that, with the introduction of this
The number of recipes to be prepared in processor 60 is set to one.
In the event of a break in the supply or malfunction of the processor 60, the data entered or received at various stages of the cycle is transferred to the memory with information saved when the power is turned off, so that when it resumes operation, it can be started from the moment it was stopped.
Thus, the proposed set of whole bales of 63, and then parts of bales, and in the case when, in accordance with the recipe, only one or a few pieces of whole bales are required for one or several varieties located on conveyor lines x 2 rubber . The installation is compact and has limited dimensions, and, therefore, can be installed in the immediate vicinity of the mixer in place of the former, equipment for manual dosing without the need for recommending dosing posts.

权利要求:
Claims (4)
[1]
1. An apparatus for cutting and hanging non-granulated rubber in front of the feed to the mixer, comprising parallelly arranged rubber supply lines, each of which includes feed and metering conveyors and a weighing device with weights associated with each conveyor line, a cutting device rubber with at least one movable band saw, collecting conveyor with vertical side walls, installed behind the discharge end of the metering conveyor and located below the last, mustache A device for accumulating excess rubber and a pressure device for holding rubber on the dosing conveyor, an automatic control system that allows simultaneous preparation of precise weights for the mixer from different grades of rubber; the cutting device is driven to its reciprocating movement across the conveyor lines, working branches of band saws are placed between the discharge ends of the metering conveyors and the inlet part of the device for weighing. stitching
the excess part of the rubber is installed along the movement of the rubber down the conveyor lines below the latter, but at the top level of the collecting conveyor and connected to the device for weighing by means of a series of rotary valves in the vertical plane.
[2]
2. Installation under item 1, characterized in that the dosing
fO
15
0
five
0
five
Q
five
0
five
The conveyor is equipped with an angular position sensor of its drive shaft and a sensor for controlling the passage of rubber, the latter being located directly behind the drive shaft.
[3]
3. Installation on PP. 1 and 2, that is, it is provided that it is provided with sensors connected in pairs to one of the conveyor lines, for stopping the feeding conveyors in accordance with the operation intervals of the metering conveyors.
[4]
4. Installation on PP. 1-3, characterized in that each conveyor line has a sensor for stopping the dosing conveyor after the weighing has finished, located near the discharge end of the dosing conveyor,
5, Installation according to claims, 1-4, characterized in that the device for accumulating the excess part of rubber is mounted on the vertical side walls of the collecting conveyor, between which there are several pairs of transverse dividing walls arranged in line with the longitudinal edges of the weighing equipment weighing and connecting flaps by means of horizontal axes are hingedly mounted on the upper part of the vertical side wall of the collecting conveyor in the intervals between the pairs of transverse divide ling walls, each of the connecting flaps mounted rotatably in a vertical plane when interacting in a horizontal position with the discharge end of the weighing device, and in a vertical position facing the free end upwards.
6, Installation on PP. 1-5, which means that the device for accumulating the redundant part of rubber is made in the form of a first row of folding flaps, each of which is pivotally mounted at one end through a horizontal axis on a pair of transverse dividing walls with the possibility of rotation in the vertical plane and interacting in a horizontal plane with a vertical side wall of the collecting conveyor facing the weighing device, and in a vertical position facing the free end upward of a second row of tipping 13
gates, each of which at one end is pivotally mounted on the upper part of the second side wall of the collecting conveyor through the horizontal axis between the corresponding pair of transverse dividing walls, each of the second row of gates being installed with the possibility of rotation in the vertical plane before interacting in the horizontal the free end with the hinged end of the corresponding
13
dampers of the first row, and in the vertical position of the means of the device for the retracted position is turned free
27783
end down.
fO
14
and in the form of a series of fixed longitudinal walls, which are a continuation of the second side wall of the collecting conveyor and located in the intervals between each pair of transverse dividing walls. 7. Installation of PP, 1-6, characterized in that it contains four conveyor lines, and the band saws of the cutting device are located one from another at a distance greater than the distance between the outer longitudinal edges of the suspension
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Compiled by V. Baturov Editor M. Kelemesh Tehred L. Oliynyk Proofreader I. Musk
Order 3397/58 Circulation 564Subscription
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-355, Raushsk nab., 4/5
Production and printing company, Uzhgorod, st. Project, 4

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同族专利:

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公开号 | 公开日

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IT7868911D0|1978-08-16|

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FR2433410A1|1980-03-14|

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US4214640A|1980-07-29|

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DE2914227A1|1980-03-06|

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PL118270B1|1981-09-30|

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CA1092544A|1980-12-30|

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PL216211A1|1980-04-21|

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IT1203196B|1989-02-15|

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ES479823A1|1979-11-16|

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JPS5528890A|1980-02-29|

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BR7903226A|1980-03-18|

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GB2028518B|1983-01-12|

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CN103341923B|2013-05-10|2015-09-30|三角轮胎股份有限公司|Elastomeric compound glue feeder|

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FR3049888A1|2016-04-11|2017-10-13|Michelin & Cie|CONTROL OF THE DOSAGE IN THE MANUFACTURE OF TIRES|

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CN111923264B|2020-08-05|2021-06-25|浙江天台祥和实业股份有限公司|Automatic batching device and batching method for rubber parts|

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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IT68911/78A|IT1203196B|1978-08-16|1978-08-16|MACHINE FOR THE AUTOMATIC PREPARATION OF THE CHARGES OF VARIOUS TYPES OF AUCCIU INTENDED TO BE PART OF A MIXTURE|

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