CN212049759U - Cloth pulling device capable of preventing silking - Google Patents
Cloth pulling device capable of preventing silking Download PDFInfo
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- CN212049759U CN212049759U CN201821244403.0U CN201821244403U CN212049759U CN 212049759 U CN212049759 U CN 212049759U CN 201821244403 U CN201821244403 U CN 201821244403U CN 212049759 U CN212049759 U CN 212049759U
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Abstract
The utility model relates to a fabric cutting machine tool field specifically is a prevent spreading device of smooth silk, including the support column, install the positioning seat on the support column, the positioning seat includes the slide, and the slide both ends have connect left side slippery fell and right slippery fell, and the pivot is all installed to left side slippery fell and right slippery fell both sides, installs the guide pulley in the pivot, and the winding has the round to pull the strip on the guide pulley, pulls and installs a plurality of spreading mechanisms on the strip. The utility model discloses a granny rag mechanism of rotation pulls the cloth in succession, and the mode of manipulator granny rag has the multiple spot granny rag and pulls and can effectively prevent that the cloth head from dropping, the reliable and stable advantage of granny rag process, the mode of the artifical manual granny rag of tradition relatively. The labor intensity of workers is greatly reduced, and the production efficiency of enterprises is improved.
Description
Technical Field
The utility model relates to a fabric cutting machine tool field specifically indicates a prevent granny rag device of smooth silk.
Background
It is common processing means in the cloth course of working to tailor the cloth, but the in-process of tailorring at the cloth, need artifical hand pulling cloth to cut again after suitable length, need to be equipped with special staff and assist on one side to a large amount of repeated tailorring, also there is the reciprocating type manipulator of design to snatch the traction to the cloth now, but when the back manipulator of tailorring snatchs the cloth head, probably snatch the failure or pull in-process cloth head and drop, tailor out the waste material, influence subsequent tailorring simultaneously, need the manual work to proofread again and process, it is very troublesome, this kind of mode is light then influences processing, the machine is damaged to the weight, bring the loss for the producer. How to solve the above technical problems becomes the direction of efforts of those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model provides a prevent granny rag device of smooth silk. The utility model discloses a granny rag mechanism of rotation pulls the cloth in succession, and the mode of manipulator granny rag has the multiple spot granny rag and pulls and can effectively prevent that the cloth head from dropping, the reliable and stable advantage of granny rag process, the mode of the artifical manual granny rag of tradition relatively. The labor intensity of workers is greatly reduced, and the production efficiency of enterprises is improved.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a prevent granny rag device of smooth silk, includes the support column, installs the positioning seat on the support column, and the positioning seat includes the slide, and the slide both ends connect and slide head and right side and slide the head in a left side, and the pivot is all installed to slide head and right side both sides in a left side, installs the guide pulley in the pivot, and the winding has the round to pull the strip on the guide pulley, pulls and installs a plurality of granny rag mechanisms on the strip.
The utility model discloses in, the guide pulley of positioning seat both sides rotates, drive the strip motion of pulling of positioning seat both sides, draw the draw cloth mechanism on the strip and slide to the overhead surface of left side slider under the left side, then the both sides that the draw cloth mechanism on the strip was carried simultaneously to the positioning seat both sides, this draw cloth mechanism continues to remove to slide department, the cloth is carried to next draw cloth mechanism, draw the strip and drive the cloth through draw cloth mechanism and remove, the cloth has a plurality of draw cloth mechanisms and pulls the cloth simultaneously when the positioning seat top is removed like this. The cutting condition is that the cloth pulling mechanism close to the cloth head passes through the cutting mechanism, the cut cloth is taken away by the first cloth pulling mechanism after cutting, the cloth is put down at the left end of the left sliding head, and the left end of the next cloth pulling mechanism is the cloth head, so that the cloth at the cutting position of the cloth head after cutting is guaranteed to be pulled. The utility model discloses a granny rag mechanism of rotation pulls the cloth in succession, and the mode of manipulator granny rag has the multiple spot granny rag and pulls and can effectively prevent that the cloth head from dropping, the reliable and stable advantage of granny rag process, the mode of the artifical manual granny rag of tradition relatively. The labor intensity of workers is greatly reduced, and the production efficiency of enterprises is improved.
As a preferred mode, the cloth spreading mechanism comprises a positioning sleeve, a threaded lock sleeve is arranged on the outer wall surface of the positioning sleeve, the positioning sleeve is connected with the traction strip through the threaded lock sleeve, a telescopic column penetrates through the positioning sleeve, one end of the telescopic column extends downwards to be connected with a roller, the other end of the telescopic column extends upwards to be connected with an upper clamping plate outside the positioning sleeve, a spring is sleeved on a telescopic rod between the upper clamping plate and the positioning sleeve, one end of the spring is connected with the upper clamping plate, the other end of the spring is connected with the positioning sleeve, the outer wall surface of the positioning sleeve is fixedly connected with a lower clamping plate corresponding to the position of the upper clamping plate, sliding plates, sliding heads and sliding heads are arranged at the edges of two sides, close to guide wheels, of the sliding plates and are.
Preferably, the left slider has a cam shape that is pushed up to the left, and the right slider has a cam shape that is pushed up to the right.
As a preferred mode, the sliding groove on the sliding plate is parallel to the traction strip, the sliding groove on the left sliding head is parallel to the traction strip, the sliding groove on the lower surface of the right sliding head bends towards the direction close to the nearest traction strip, and the sliding groove on the upper surface of the right sliding head bends towards the direction far away from the nearest traction strip and is in butt joint with the sliding groove on the sliding plate.
Preferably, a rubber plate is attached to the opposite surface of the upper and lower plates.
Preferably, the guide wheel is one of a pulley and a sprocket, and the traction strip is one of a belt and a chain.
As a preferred mode, the bottom of the supporting column is provided with an anchor bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a granny rag mechanism of rotation pulls the cloth in succession, and the mode of manipulator granny rag has the multiple spot granny rag and pulls and can effectively prevent that the cloth head from dropping, the reliable and stable advantage of granny rag process, the mode of the artifical manual granny rag of tradition relatively. The labor intensity of workers is greatly reduced, and the production efficiency of enterprises is improved;
(2) the utility model discloses spreading mechanism includes the position sleeve, be equipped with the screw thread lock sleeve on the position sleeve outer wall face, the position sleeve passes through the screw thread lock sleeve with pulling the strip and is connected, flexible post has been worn in the position sleeve, flexible post one end stretches out the position sleeve downwards and is connected with the gyro wheel, one end upwards stretches out the position sleeve in addition and is connected with the punch holder outward, the cover has the spring on the telescopic link between punch holder and position sleeve, spring one end is connected with the punch holder, one end is connected with the position sleeve in addition, the outer wall of position sleeve is the lower plate that fixedly connected with and punch holder position correspond still, a slide, left side slippery head and left slippery head are close to the both sides edge of guide pulley and are equipped with and pull the corresponding spout of strip motion orbit, the gyro wheel embedding is in the spout, left side slippery head is the cam-shaped of left side jack-. When the roller of the cloth pulling mechanism passes through the cam-shaped upward slope jacked by the right sliding head, the upward jacked outline of the roller moves to push the telescopic column to move upwards, the spring on the telescopic column is stretched, the upper clamping plate moves upwards to leave the lower clamping plate, and the upper clamping plate are opened; when the cloth passes through the cam-shaped downhill which is jacked upwards by the right sliding head, the elastic force of the spring which recovers deformation pulls the upper clamping plate to move downwards, and the upper clamping plate is attached to the lower clamping plate to clamp the cloth, so that the process of clamping the cloth is realized. When the roller of the cloth pulling mechanism goes up a cam-shaped slope jacked leftwards by the left sliding head, the profile jacked leftwards moves to push the telescopic column to move leftwards, the spring on the telescopic column is stretched, the upper clamping plate moves leftwards to leave the lower clamping plate, the upper clamping plate and the upper clamping plate are opened, and the cut cloth falls off; when the cloth passes through a cam-shaped downhill which is jacked up leftwards by the left sliding head, the left clamping plate is pulled to move downwards by the elastic force of the spring which recovers deformation, the left clamping plate is attached to the lower clamping plate to reset, and the cloth is continuously clamped by the right sliding head which is driven by the traction strip;
(3) the utility model discloses spout on the slide with pull the strip and parallel, the spout on the left side slippery fellow with pull the strip and parallel, the spout orientation of the right side slippery fellow lower surface is close to its nearest direction of pulling the strip and buckles, the spout orientation of the right side slippery fellow upper surface keep away from its nearest direction of pulling the strip buckle and with the slide on the spout butt joint. The chute that the orientation was buckled is close to its nearest draw the strip direction makes granny rag mechanism move to the positioning seat edge, and the spout that the orientation was buckled is kept away from its nearest draw the strip makes granny rag mechanism move to the positioning seat center, and such aim at realizes that granny rag mechanism has the function of being close to the cloth and removing when carrying out the centre gripping cloth, can make the cloth be in the nip department of punch holder and lower plate, carries out the centre gripping to the cloth. The sliding groove parallel to the traction strip on the sliding plate ensures that the cloth pulling mechanism cannot move randomly to release the cloth, the sliding groove parallel to the traction strip on the left sliding head is matched with the cam-shaped part jacked to the left side to release the cloth, and the cut cloth falls under the action of gravity to finish blanking;
(4) the rubber plate is pasted on the opposite surface of the upper clamping plate and the lower clamping plate of the utility model, so that the friction coefficient between the cloth and the upper clamping plate and the lower clamping plate is increased, and the phenomenon of the cloth sliding is prevented;
(5) the utility model discloses the support column bottom is equipped with rag bolt, is convenient for install subaerial with the device, prevents that the reaction force of granny rag in-process from making the device take place gliding condition.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the positioning socket.
Fig. 3 is a top view of the positioning seat.
Fig. 4 is a front view of the cloth pulling mechanism.
Fig. 5 is a left side view of the cloth spreading mechanism.
The device comprises a support column 1, a rotating shaft 2, a guide wheel 3, a positioning seat 4, a sliding plate 4-1, a right sliding head 4-2, a left sliding head 4-3, a sliding groove 4-4, a cloth pulling mechanism 5, a roller 5-1, a telescopic column 5-2, a positioning sleeve 5-3, a lower clamping plate 5-4, an upper clamping plate 5-5, a rubber plate 5-6, a spring 5-7, a threaded locking sleeve 5-8 and a traction strip 6.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
Example 1:
referring to fig. 1-5, the cloth spreading device for preventing silking comprises a support column 1, a positioning seat 4 is mounted on the support column 1, the positioning seat 4 comprises a sliding plate 4-1, two ends of the sliding plate 4-1 are connected with a left sliding head 4-3 and a right sliding head 4-2, two sides of the left sliding head 4-3 and the right sliding head 4-2 are respectively provided with a rotating shaft 2, a guide wheel 3 is mounted on the rotating shaft 2, a circle of traction strip 6 is wound on the guide wheel 3, and a plurality of cloth spreading mechanisms 5 are mounted on the traction strip 6.
The utility model discloses in, the guide pulley 3 of 4 both sides of positioning seat rotates, drive the strip 6 motion of pulling of 4 both sides of positioning seat, draw the granny rag mechanism 5 on the strip 6 and slide to the smooth 4-3 upper surface in a left side under 4-3 surfaces, then the both sides of the cloth are cliied simultaneously to the granny rag mechanism 5 on the strip 6 are drawn to 4 both sides of positioning seat, this granny rag mechanism 5 continues to move to slide 4-1 department, the cloth is continued to be cliied to next granny rag mechanism 5, draw the strip 6 to drive the cloth through granny rag mechanism 5 and remove, the cloth has a plurality of granny rag mechanisms 5 when moving above positioning seat 4 and pulls the cloth simultaneously like this. The cutting condition is that the cloth pulling mechanism 5 close to the cloth head passes through the cutting mechanism, the cut cloth is taken away by the first cloth pulling mechanism 5 after cutting, the cloth is put down at the left end of the left sliding head 4-3, and the cloth head is arranged at the left end of the next cloth pulling mechanism 5 at the moment, so that the cloth at the cutting position of the cloth head after cutting is guaranteed to be pulled. The utility model discloses a granny rag mechanism 5 of rotation pulls the cloth in succession, and the mode of manipulator granny rag has the multiple spot granny rag and pulls and can effectively prevent that the cloth head from dropping, the reliable and stable advantage of granny rag process, the mode of the artifical manual granny rag of tradition relatively. The labor intensity of workers is greatly reduced, and the production efficiency of enterprises is improved.
Example 2:
referring to fig. 1-5, the cloth spreading device for preventing silking comprises a support column 1, a positioning seat 4 is mounted on the support column 1, the positioning seat 4 comprises a sliding plate 4-1, two ends of the sliding plate 4-1 are connected with a left sliding head 4-3 and a right sliding head 4-2, two sides of the left sliding head 4-3 and the right sliding head 4-2 are respectively provided with a rotating shaft 2, a guide wheel 3 is mounted on the rotating shaft 2, a circle of traction strip 6 is wound on the guide wheel 3, and a plurality of cloth spreading mechanisms 5 are mounted on the traction strip 6.
The cloth pulling mechanism 5 comprises a positioning sleeve 5-3, a thread lock sleeve 5-8 is arranged on the outer wall surface of the positioning sleeve 5-3, the positioning sleeve 5-3 is connected with a traction strip 6 through the thread lock sleeve 5-8, a telescopic column 5-2 penetrates through the positioning sleeve 5-3, one end of the telescopic column 5-2 extends downwards out of the positioning sleeve 5-3 to be connected with a roller 5-1, the other end of the telescopic column extends upwards out of the positioning sleeve 5-3 to be connected with an upper clamping plate 5-5, a spring 5-7 is sleeved on a telescopic rod between the upper clamping plate 5-5 and the positioning sleeve 5-3, one end of the spring 5-7 is connected with the upper clamping plate 5-5, the other end of the spring is connected with the positioning sleeve 5-3, a lower clamping plate 5-4 corresponding to the upper clamping plate 5-5 is fixedly connected on the outer wall surface of the positioning, the edges of the two sides of the sliding plate 4-1, the left sliding head 4-3 and the left sliding head 4-3 close to the guide wheel 3 are provided with sliding grooves 4-4 corresponding to the motion trail of the traction strip 6, the roller 5-1 is embedded in the sliding grooves 4-4, the left sliding head 4-3 is in a cam shape jacked to the left side, and the right sliding head 4-2 is in a cam shape jacked upwards.
When the roller 5-1 of the cloth pulling mechanism 5 passes through the cam-shaped uphill which is jacked upwards by the right sliding head 4-2, the upward jacked outline of the roller 5-1 moves to further push the telescopic column 5-2 to move upwards, the spring 5-7 on the telescopic column 5-2 is stretched, the upper clamping plate 5-5 moves upwards to separate from the lower clamping plate 5-4, and the upper clamping plate 5-5 are opened; when the cloth passes through the cam-shaped downhill which is jacked upwards by the right sliding head 4-2, the elastic force of the spring 5-7 which recovers the deformation pulls the upper clamping plate 5-5 to move downwards, and the upper clamping plate is attached to the lower clamping plate 5-4 to clamp the cloth, so that the process of clamping the cloth is realized.
When the roller 5-1 of the cloth pulling mechanism 5 passes through the cam-shaped upslope jacked leftwards by the left sliding head 4-3, the contour jacked leftwards by the roller 5-1 moves to further push the telescopic column 5-2 to move leftwards, the spring 5-7 on the telescopic column 5-2 is stretched, the upper clamping plate 5-5 moves leftwards to be away from the lower clamping plate 5-4, the upper clamping plate 5-5 and the upper clamping plate 5-5 are opened, and the cut cloth falls off; when the cloth passes through the cam-shaped downhill which is jacked leftwards by the left sliding head 4-3, the left clamping plate is pulled to move downwards by the elastic force of the recovered deformation of the spring 5-7, and is attached to the lower clamping plate 5-4 to reset, and the cloth is continuously clamped by the traction strip 6.
Other parts of this embodiment are the same as those of the above embodiment, and are not described herein again.
Example 3:
referring to fig. 1-5, the cloth spreading device for preventing silking comprises a support column 1, a positioning seat 4 is mounted on the support column 1, the positioning seat 4 comprises a sliding plate 4-1, two ends of the sliding plate 4-1 are connected with a left sliding head 4-3 and a right sliding head 4-2, two sides of the left sliding head 4-3 and the right sliding head 4-2 are respectively provided with a rotating shaft 2, a guide wheel 3 is mounted on the rotating shaft 2, a circle of traction strip 6 is wound on the guide wheel 3, and a plurality of cloth spreading mechanisms 5 are mounted on the traction strip 6.
The sliding groove 4-4 on the sliding plate 4-1 is parallel to the traction strip 6, the sliding groove 4-4 on the left sliding head 4-3 is parallel to the traction strip 6, the sliding groove 4-4 on the lower surface of the right sliding head 4-2 bends towards the direction close to the nearest traction strip 6, and the sliding groove 4-4 on the upper surface of the right sliding head 4-2 bends towards the direction far from the nearest traction strip 6 and is in butt joint with the sliding groove 4-4 on the sliding plate 4-1. The purpose is that the cloth pulling mechanism 5 has the function of moving close to the cloth when the cloth pulling mechanism 5 clamps the cloth, and the cloth can be positioned at the clamping openings of the upper clamping plate 5-5 and the lower clamping plate 5-4 to clamp the cloth. The sliding groove 4-4 parallel to the traction strip 6 on the sliding plate 4-1 ensures that the cloth pulling mechanism 5 cannot move randomly to release the cloth, the sliding groove 4-4 parallel to the traction strip 6 on the left sliding head 4-3 is matched with a cam which is jacked up to the left side to release the cloth, and the cut cloth falls off under the action of gravity to finish blanking.
Other parts of this embodiment are the same as those of the above embodiment, and are not described herein again.
Example 4:
referring to fig. 1-5, the cloth spreading device for preventing silking comprises a support column 1, a positioning seat 4 is mounted on the support column 1, the positioning seat 4 comprises a sliding plate 4-1, two ends of the sliding plate 4-1 are connected with a left sliding head 4-3 and a right sliding head 4-2, two sides of the left sliding head 4-3 and the right sliding head 4-2 are respectively provided with a rotating shaft 2, a guide wheel 3 is mounted on the rotating shaft 2, a circle of traction strip 6 is wound on the guide wheel 3, and a plurality of cloth spreading mechanisms 5 are mounted on the traction strip 6.
Rubber plates 5-6 are adhered to the opposite surfaces of the upper clamping plate 5-5 and the lower clamping plate 5-4, so that the friction coefficient between the cloth and the upper clamping plate 5-5 and the lower clamping plate 5-4 is increased, and the phenomenon that the cloth is pulled to slide is prevented.
Other parts of this embodiment are the same as those of the above embodiment, and are not described herein again.
Example 5:
referring to fig. 1-5, the cloth spreading device for preventing silking comprises a support column 1, a positioning seat 4 is mounted on the support column 1, the positioning seat 4 comprises a sliding plate 4-1, two ends of the sliding plate 4-1 are connected with a left sliding head 4-3 and a right sliding head 4-2, two sides of the left sliding head 4-3 and the right sliding head 4-2 are respectively provided with a rotating shaft 2, a guide wheel 3 is mounted on the rotating shaft 2, a circle of traction strip 6 is wound on the guide wheel 3, and a plurality of cloth spreading mechanisms 5 are mounted on the traction strip 6.
The foundation bolt is arranged at the bottom of the support column 1, so that the device is conveniently installed on the ground, and the situation that the device slides due to the reaction force in the cloth spreading process is prevented.
Other parts of this embodiment are the same as those of the above embodiment, and are not described herein again.
The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and drawings of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a prevent granny rag device of smooth silk which characterized in that: the cloth pulling device is characterized by further comprising a supporting column (1), a positioning seat (4) is installed on the supporting column (1), the positioning seat (4) comprises a sliding plate (4-1), two ends of the sliding plate (4-1) are connected with a left sliding head (4-3) and a right sliding head (4-2), rotating shafts (2) are installed on two sides of the left sliding head (4-3) and the right sliding head (4-2), guide wheels (3) are installed on the rotating shafts (2), a circle of pulling strips (6) are wound on the guide wheels (3), a plurality of cloth pulling mechanisms (5) are installed on the pulling strips (6), each cloth pulling mechanism (5) comprises a positioning sleeve (5-3), a threaded lock sleeve (5-8) is arranged on the outer wall surface of each positioning sleeve (5-3), and each positioning sleeve (5-3) is connected with each pulling strip (6) through the threaded lock sleeve (5-8), the positioning sleeve (5-3) is internally provided with a telescopic column (5-2), one end of the telescopic column (5-2) extends downwards to form the positioning sleeve (5-3) to be connected with the roller (5-1), the other end of the telescopic column extends upwards to form the positioning sleeve (5-3) to be connected with the upper clamping plate (5-5), a spring (5-7) is sleeved on a telescopic rod between the upper clamping plate (5-5) and the positioning sleeve (5-3), one end of the spring (5-7) is connected with the upper clamping plate (5-5), the other end of the spring is connected with the positioning sleeve (5-3), the outer wall surface of the positioning sleeve (5-3) is fixedly connected with a lower clamping plate (5-4) corresponding to the upper clamping plate (5-5), and the edges of the sliding plate (4-1), the left sliding head (4-3) and the left sliding head (4-3), which are close to two sides of the guide wheel (3), are provided with traction strips (6) A sliding groove (4-4) corresponding to the motion track, the roller (5-1) is embedded in the sliding groove (4-4), the left sliding head (4-3) is in a cam shape which is jacked up towards the left side, the right sliding head (4-2) is in a cam shape which is jacked up upwards, the sliding groove (4-4) on the sliding plate (4-1) is parallel to the traction strip (6), the sliding groove (4-4) on the left sliding head (4-3) is parallel to the traction strip (6), the sliding groove (4-4) on the lower surface of the right sliding head (4-2) is bent towards the direction close to the nearest traction strip (6), the sliding groove (4-4) on the upper surface of the right sliding head (4-2) bends towards the direction far away from the nearest traction strip (6) and is butted with the sliding groove (4-4) on the sliding plate (4-1).
2. A slide-wire prevention spreading device according to claim 1, wherein: rubber plates (5-6) are adhered to the opposite surfaces of the upper clamping plate (5-5) and the lower clamping plate (5-4).
3. A slide-wire prevention spreading device according to claim 1, wherein: the guide wheel (3) is one of a belt wheel and a chain wheel, and the traction strip (6) is one of a belt and a chain.
4. A slide-wire prevention spreading device according to claim 1, wherein: and foundation bolts are arranged at the bottoms of the supporting columns (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821244403.0U CN212049759U (en) | 2018-08-03 | 2018-08-03 | Cloth pulling device capable of preventing silking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821244403.0U CN212049759U (en) | 2018-08-03 | 2018-08-03 | Cloth pulling device capable of preventing silking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212049759U true CN212049759U (en) | 2020-12-01 |
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ID=73508271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821244403.0U Expired - Fee Related CN212049759U (en) | 2018-08-03 | 2018-08-03 | Cloth pulling device capable of preventing silking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212049759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122998A (en) * | 2021-03-29 | 2021-07-16 | 南京玻璃纤维研究设计院有限公司 | Continuous parallel traction method and traction device |
-
2018
- 2018-08-03 CN CN201821244403.0U patent/CN212049759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122998A (en) * | 2021-03-29 | 2021-07-16 | 南京玻璃纤维研究设计院有限公司 | Continuous parallel traction method and traction device |
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