CN218203271U - Wire guide roller mechanism for processing capable of keeping constant tension of POY high-elastic yarn - Google Patents
Wire guide roller mechanism for processing capable of keeping constant tension of POY high-elastic yarn Download PDFInfo
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- CN218203271U CN218203271U CN202222629791.7U CN202222629791U CN218203271U CN 218203271 U CN218203271 U CN 218203271U CN 202222629791 U CN202222629791 U CN 202222629791U CN 218203271 U CN218203271 U CN 218203271U
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Abstract
The application discloses a wire guide roller mechanism for processing POY high elastic wires, which comprises a wire guide roller, a wire guide piece, a support frame body and an elastic adjusting assembly, wherein the wire guide roller is arranged on the support frame body; a plurality of groups of annular guide grooves are formed in the outer surface of the guide roller at equal intervals; the number of the wire guiding pieces is a plurality of groups, and the wire guiding pieces are slidably arranged on the annular guide grooves; the number of the support frame bodies is two, and the support frame bodies are rotatably connected with the end part of the yarn guide roller; the number of the elastic adjusting assemblies is two, and the elastic adjusting assemblies are arranged at the lower end of the support frame body; its technical essential does, can effectively avoid the mutual winding's of POY high stretch yarn condition, can carry out certain regulation to POY high stretch yarn for POY high stretch yarn tension keeps in the state of relatively invariable, makes things convenient for subsequent processing, can directly lubricate the ball, and it is more convenient to add lubricating oil, need not to shut down the operation moreover, and is efficient, excellent in use effect has good use prospect.
Description
Technical Field
The utility model belongs to POY high-stretch yarn production field specifically is a seal wire roller mechanism is used in processing that keeps POY high-stretch yarn constant tension.
Background
Polyester fiber is commonly called 'terylene'. Is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, and belongs to a high molecular compound. Invented in 1941, it was the first major variety of current synthetic fibers. The polyester fiber has the advantages of good crease resistance and shape retention, high strength and elastic recovery capability. It is firm and durable, has the functions of resisting wrinkle, preventing ironing and preventing hair from sticking.
The polyester POY is a polyester DTY prepared by stretching and deforming polyester pre-oriented yarns by an elasticizer, has wide application range in the aspect of spinning, and the POY is not directly used for weaving. POY is distinguished according to the spinning process, such as chinlon POY;
the polyester POY is characterized in that polyester pre-oriented yarns have high elasticity after being stretched and deformed by an elasticizer, and the polyester POY has high elasticity, so that the polyester POY is more and more widely applied, the demand of people for the polyester POY is continuously improved, and in order to meet the use requirements of people, some POY high-elastic yarn production equipment is invented, wherein a guide device for drawing the POY high-elastic yarns to move is arranged, a plurality of structures are arranged on the guide device for drawing the POY high-elastic yarns to move, and a yarn guide roller mechanism is arranged;
however, researches show that the existing guide wire roller mechanism has certain disadvantages in use;
1. the conventional thread guide roller mechanism is integrally cylindrical, when the thread guide roller mechanism is used, a plurality of POY high-elastic threads are guided by the thread guide roller at the same time, the POY high-elastic threads are mutually staggered and wound during guiding, and the processing is troublesome;
2. the whole of current seal wire roller mechanism is cylindrical, and its whole position is fixed, directly adopts motor drive, and it only possesses the guide function, and the speed of production has certain difference, and consequently the tension of POY high stretch yarn has certain difference, and it is too big to appear partly constantly during the guide, and POY high stretch yarn fracture or partly constantly tension undersize can't draw the condition of POY high stretch yarn motion, need the manpower to handle, and is more troublesome, does not satisfy people's operation requirement.
Disclosure of Invention
In order to overcome prior art's not enough, this application embodiment provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing, set up the seal wire spare on its seal wire roller, adopt seal wire spare guide POY high-elastic yarn, the seal wire spare plays the effect of the space about injecing POY high-elastic yarn, thereby make and pull in-process POY high-elastic yarn and can not contact each other, thereby can effectively avoid the mutual winding condition of POY high-elastic yarn, the result of use is relatively good.
The technical scheme adopted by the embodiment of the application for solving the technical problem is as follows:
a wire guide roller mechanism for processing for keeping constant tension of POY high elastic wires comprises a wire guide roller, a wire guide piece, a support frame body and an elastic adjusting assembly;
a plurality of groups of annular guide grooves are formed in the outer surface of the guide roller at equal intervals;
the number of the wire guiding pieces is a plurality of groups, and the wire guiding pieces are slidably arranged on the annular guide grooves;
the number of the support frame bodies is two, and the support frame bodies are rotationally connected with the end parts of the yarn guide rollers;
the number of the elastic adjusting assemblies is two, and the elastic adjusting assemblies are arranged at the lower end of the support frame body;
the width of the annular guide groove is larger than that of the wire guide piece, elastic pieces are arranged on two side walls of the annular guide groove, and two ends of the wire guide piece are fixedly connected with the two groups of elastic pieces respectively.
During the use, POY high-elastic yarn passes the seal wire roller after the guide of seal wire spare, and there is certain up-and-down motion space and side-to-side motion space in the guide process seal wire spare, the tension of adjustment POY high-elastic yarn that can the adaptability, excellent in use effect.
The utility model provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing has set up seal wire spare on its seal wire roller, adopts seal wire spare guide POY high-elastic yarn, and seal wire spare plays and restricts the effect that removes the space about the POY high-elastic yarn to make and pull in-process POY high-elastic yarn and can not contact each other, thereby can effectively avoid the mutual winding's of POY high-elastic yarn condition, the result of use is relatively good.
The utility model provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing has been seted up annular guiding groove on its seal wire roller to lower extreme at its support body sets up the elasticity adjusting part, seal wire spare possesses the space that removes about and reciprocate during the use, can adapt to the production speed of POY high-elastic yarn at the in-process that removes, can carry out certain regulation to POY high-elastic yarn, make POY high-elastic yarn tension keep at the state of relative constancy, convenient follow-up processing.
Preferably, a plurality of groups of strip-shaped grooves are formed in the inner surface of the annular guide groove, a limiting part is arranged inside the wire guiding part, and the limiting part moves along the strip-shaped grooves.
Preferably, the limiting member comprises an annular ring and a guide block;
the annular ring is fixedly arranged in the wire guide piece;
the guide block is rotatably arranged on the wire guide piece;
wherein, the guide block rolls along the strip-shaped groove.
The position of guide block is injectd to the annular circle during use, and the guide block rolls along the bar groove to injectd seal wire spare, make it can not rotate with the seal wire roller, can only slide along the bar groove, injectd the scope of seal wire spare moreover, can effectively avoid seal wire spare collision.
Preferably, the outer surface of the wire guide piece is provided with an annular limiting groove, and the section of the annular limiting groove is semicircular.
The setting of annular spacing groove can play certain spacing effect to the POY high-elastic yarn, and the POY high-elastic yarn removes to lead the silk spare outside when avoiding using.
Preferably, the support frame body comprises an end cover and a mounting seat;
a bearing is arranged on one end face of the end cover, and the end face of the wire guide roller is fixedly connected with the inner surface of the bearing;
the mounting seat is arranged at the other end of the end cover, and a lubricating component is arranged on the mounting seat;
wherein, elasticity adjusting part sets up the lower terminal surface at the mount pad.
The lubricating component can lubricate the bearing when in use, so that the bearing can rotate more smoothly.
Preferably, the lubricating assembly comprises a lubricating cylinder and an oil supply part;
the lubricating cylinder is fixedly arranged on the upper end surface of the mounting seat;
the oil supply part is used for conveying the lubricating oil in the lubricating cylinder to the ball of the bearing.
The lubricating cylinder is located the outside, can conveniently observe the surplus of lubricating oil, makes things convenient for the staff to refuel.
Preferably, the oil supply member comprises an oil pipeline and an oil transportation channel;
one end of the oil delivery pipe is fixedly connected with an oil outlet of the lubricating cylinder;
the oil conveying channel is arranged on the end cover and the bearing outer ring, one end of the oil conveying channel is fixedly connected with the other end of the oil conveying pipe, and the other end of the oil conveying channel is directly communicated with a space where the ball is located.
Can set up the check valve structure on the defeated oil pipe for lubricating oil can only follow the space that lubricated section of thick bamboo flow direction ball was located, and is lubricated effectual.
The utility model provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing, it has set up lubricating assembly, regularly opens the export of a lubrication section of thick bamboo during the use for in the direct flow direction bearing of lubricating oil in the lubrication section of thick bamboo, can directly lubricate the ball, it is more convenient to add lubricating oil, need not to shut down the operation moreover, and is efficient, excellent in use effect.
Preferably, the elasticity adjusting assembly comprises a lifting column, a spring and a mounting base plate;
the telescopic end of the lifting column is fixedly connected with the lower end face of the mounting seat;
the spring is arranged on the outer side of the lifting column, and the upper end face of the spring is fixedly connected with the lower end face of the mounting seat;
the mounting bottom plate is fixedly connected with the main body part of the lifting column, and the lower end of the spring is fixedly connected with the upper end face of the mounting bottom plate.
During the use, the lifting column can limit the moving direction of the spring, and the spring applies the elasticity to the support frame body, so that the POY high-elastic yarn tension adjusting device has certain up-down moving space, can adjust the tension of the POY high-elastic yarn in an adaptive manner, and is good in using effect.
To sum up, the utility model discloses a following at least one useful technological effect:
firstly, the utility model provides a keep POY high-stretch yarn seal wire roller mechanism for processing of constant tension has set up seal wire spare on its seal wire roller, adopts seal wire spare guide POY high-stretch yarn, and seal wire spare plays and restricts the effect that removes the space about the POY high-stretch yarn to make and pull in-process POY high-stretch yarn and can not the mutual contact, thereby can effectively avoid the condition of POY high-stretch yarn intertwine, the result of use is relatively good.
Secondly, the utility model provides a keep POY high-elastic filament constant tension's seal wire roller mechanism for processing has been recorded, the annular guiding groove has been seted up on its seal wire roller to lower extreme at its support body sets up the elasticity adjusting part, seal wire spare possesses the space that removes and reciprocate about removing of removal during the use, can adapt to the production speed of POY high-elastic filament at the in-process that removes, can carry out certain regulation to POY high-elastic filament, make POY high-elastic filament tension keep at the state of relative constancy, make things convenient for subsequent processing.
Thirdly, the utility model provides a keep POY high-elastic filament constant tension's seal wire roller mechanism for processing has been recorded, and it has set up lubricating assembly, regularly opens the export of a lubrication section of thick bamboo during the use for in the direct flow direction bearing of lubricating oil in the lubrication section of thick bamboo, can directly lubricate the ball, it is more convenient to add lubricating oil, need not to shut down the operation moreover, efficient, excellent in use effect has good use prospect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial view of the structure of the thread guiding member of the present invention;
FIG. 3 is a partial structural view of the thread guiding roller of the present invention;
FIG. 4 is a partial structural view of a position limiting element of the present invention;
fig. 5 is a partial structural view of the lubricating assembly of the present invention.
Reference numerals are as follows: 1. a guide wire roller; 2. an annular guide groove; 3. a wire guide; 4. a support frame body; 5. an elastic member; 6. a strip-shaped groove; 7. an annular ring; 8. a guide block; 9. an end cap; 10. a bearing; 11. a mounting seat; 12. a lubricating cylinder; 13. an oil delivery pipe; 14. an oil delivery passage; 15. a lifting column; 16. a spring; 17. and (5) installing a bottom plate.
Detailed Description
The embodiment of the application is through providing a wire guide roller mechanism is used in processing that keeps POY high-elastic yarn constant tension, it is cylindrical to solve current wire guide roller mechanism whole among the prior art, many POY high-elastic yarns are simultaneously through the guide wire roller guide when using, can appear that the POY high-elastic yarn is crisscross each other and the winding condition appears during the guide, handle more troublesome problem, the utility model relates to a keep having set up the seal wire spare on the wire guide roller in the wire guide roller mechanism is used in processing of POY high-elastic yarn constant tension, adopt seal wire spare guide POY high-elastic yarn, the seal wire spare plays the effect of controlling the space about injecing the POY high-elastic yarn to make and pull in-process POY high-elastic yarn and can not contact each other, thereby can effectively avoid the mutual winding condition of POY high-elastic yarn, the result of use is better.
Example 1:
a guide wire roller mechanism for processing for keeping constant tension of POY high elastic wires is shown in figures 1-5 and comprises a guide wire roller 1, a guide wire member 3, a support frame body 4 and an elastic adjusting assembly;
a plurality of groups of annular guide grooves 2 are arranged on the outer surface of the guide roller 1 at equal intervals; the number of the wire guiding pieces 3 is a plurality of groups, and the wire guiding pieces 3 are arranged on the annular guide groove 2 in a sliding way; the number of the support frame bodies 4 is two, and the support frame bodies 4 are rotatably connected with the end part of the yarn guide roller 1; the number of the elastic adjusting components is two, and the elastic adjusting components are arranged at the lower end of the support frame body 4;
wherein, the width of annular guiding groove 2 is greater than the width of seal wire member 3, all is provided with elastic component 5 on the both sides wall of annular guiding groove 2, and the both ends of seal wire member 3 respectively with two sets of elastic component 5 fixed connection.
During the use, POY high-stretch yarn passes guide wire roller 1 after guide wire 3 guides, and guide wire 3 has certain up-and-down motion space and side-to-side motion space among the guiding process, the tension of adjustment POY high-stretch yarn that can the adaptability, excellent in use effect.
The utility model provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing has set up seal wire spare 3 on its seal wire roller 1, adopts seal wire spare 3 guide POY high-elastic yarn, and seal wire spare 3 plays and restricts the effect that removes the space about the POY high-elastic yarn to make and pull in-process POY high-elastic yarn and can not contact each other, thereby can effectively avoid the mutual winding's of POY high-elastic yarn condition, the result of use is relatively good.
A plurality of groups of strip-shaped grooves 6 are formed in the inner surface of the annular guide groove 2, a limiting part is arranged inside the wire guide part 3, and the limiting part moves along the strip-shaped grooves 6.
The limiting part comprises an annular ring 7 and a guide block 8;
the annular ring 7 is fixedly arranged inside the wire guide member 3; the guide block 8 is rotatably arranged on the wire guide member 3;
wherein the guide block 8 rolls along the strip-shaped groove 6.
During the use, the position of the guide block 8 is limited by the annular ring 7, the guide block 8 rolls along the strip-shaped groove 6, so that the wire guide piece 3 is limited, the wire guide piece cannot rotate with the wire guide roller 1, the wire guide piece can only slide along the strip-shaped groove 6, the range of the wire guide piece 3 is limited, and the collision of the wire guide piece 3 can be effectively avoided.
The outer surface of the wire guide piece 3 is provided with an annular limiting groove, and the section of the annular limiting groove is semicircular.
The setting of annular spacing groove can play certain spacing effect to the POY high-elastic yarn, and the POY high-elastic yarn removes 3 outsides of seal wire member when avoiding using.
The support frame body 4 comprises an end cover 9 and a mounting seat 11;
a bearing 10 is arranged on one end face of the end cover 9, and the end face of the guide wire roller 1 is fixedly connected with the inner surface of the bearing 10; the mounting seat 11 is arranged at the other end of the end cover 9, and a lubricating component is arranged on the mounting seat 11;
wherein, the elasticity adjusting component is arranged on the lower end surface of the mounting seat 11.
The lubricating assembly can lubricate the bearing 10 when in use, so that the bearing 10 can rotate more smoothly.
The end cover 9 is provided with a motor for driving the guide wire roller 1 to rotate.
Example 2:
on the basis of embodiment 1, as shown in fig. 1 to 5, this embodiment is a structure of a lubricating assembly.
The lubricating assembly comprises a lubricating cylinder 12 and an oil supply part;
the lubricating cylinder 12 is fixedly arranged on the upper end surface of the mounting seat 11; the oil supply member is used to supply the lubricating oil in the lubricating cylinder 12 to the balls of the bearing 10. The lubricating cylinder 12 is located outside, so that the residual quantity of lubricating oil can be conveniently observed, and workers can conveniently refuel.
The oil supply part comprises an oil pipeline 13 and an oil pipeline 14;
one end of the oil delivery pipe 13 is fixedly connected with an oil outlet of the lubricating cylinder 12; an oil delivery channel 14 is arranged on the end cover 9 and the outer ring of the bearing 10, one end of the oil delivery channel 14 is fixedly connected with the other end of the oil delivery pipe 13, and the other end of the oil delivery channel 14 is directly communicated with a space where the balls are located.
Can set up the check valve structure on the defeated oil pipe 13 for lubricating oil can only follow the space that lubricating cylinder 12 flow direction ball was located, and is lubricated effectual.
The utility model provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing, it has set up lubricating assembly, regularly opens the export of a lubrication section of thick bamboo 12 during the use for in the direct flow direction bearing 10 of lubricating oil in the lubrication section of thick bamboo 12, can directly lubricate the ball, it is more convenient to add lubricating oil, need not to shut down the operation moreover, and is efficient, excellent in use effect.
Example 3:
on the basis of embodiment 2, as shown in fig. 1 to 5, this embodiment is a structure of an elastic adjustment assembly.
The elastic adjusting component comprises a lifting column 15, a spring 16 and a mounting bottom plate 17;
the telescopic end of the lifting column 15 is fixedly connected with the lower end face of the mounting seat 11; the spring 16 is arranged on the outer side of the lifting column 15, and the upper end surface of the spring 16 is fixedly connected with the lower end surface of the mounting seat 11; the mounting base plate 17 is fixedly connected with the main body part of the lifting column 15, and the lower end of the spring 16 is fixedly connected with the upper end face of the mounting base plate 17.
When the POY lifting device is used, the lifting column 15 can limit the movement direction of the spring 16, the spring 16 applies elastic force to the support frame body 4, so that the POY lifting device has a certain vertical movement space, the tension of the POY high-elastic yarns can be adjusted adaptively, and the using effect is good.
The utility model provides a keep POY high-elastic yarn constant tension's seal wire roller mechanism for processing, annular guide groove 2 has been seted up on its seal wire roller 1 to lower extreme at its support body 4 sets up the elasticity adjusting part, seal wire 3 possesses the space that removes about and reciprocate during the use, the in-process that removes can adapt to the production speed of POY high-elastic yarn, can carry out certain regulation to POY high-elastic yarn, make POY high-elastic yarn tension keep at the state of relative constancy, convenient follow-up processing.
It should be noted that, the utility model relates to a keep POY high-stretch yarn seal wire roller mechanism for processing of constant tension, in using, the POY high-stretch yarn passes seal wire member 3 after leading through seal wire member 3, the motor drives seal wire roller 1 and rotates, seal wire roller 1 drives seal wire member 3 and rotates, seal wire member 3 rotates and pulls the motion of POY high-stretch yarn, POY high-stretch yarn extrusion seal wire member 3 during the motion, the setting of elastic component 5 makes seal wire member 3 possess and removes the space about moving, spring 16's setting makes seal wire roller 1 possess and reciprocates the space, make seal wire member 3 also possess the space that reciprocates, thereby can make POY high-stretch yarn keep the tension of relatively invariable when pulling, excellent in use effect.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (8)
1. A wire guide roller mechanism for processing which can keep constant tension of POY high elastic wires is characterized by comprising:
the outer surface of the guide wire roller (1) is provided with a plurality of groups of annular guide grooves (2) at equal intervals;
the guide wire pieces (3) are arranged in a plurality of groups and are arranged on the annular guide groove (2) in a sliding manner;
the number of the support frame bodies (4) is two, and the support frame bodies are rotatably connected with the end part of the yarn guide roller (1);
the number of the elastic adjusting components is two, and the elastic adjusting components are arranged at the lower end of the support frame body (4);
the width of the annular guide groove (2) is larger than that of the guide wire piece (3), elastic pieces (5) are arranged on two side walls of the annular guide groove (2), and two ends of the guide wire piece (3) are fixedly connected with the two groups of elastic pieces (5) respectively.
2. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 1, wherein: a plurality of groups of strip-shaped grooves (6) are formed in the inner surface of the annular guide groove (2), a limiting part is arranged inside the guide wire part (3), and the limiting part moves along the strip-shaped grooves (6).
3. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 2, wherein: the stopper includes:
an annular ring (7) which is fixedly mounted inside the wire guide (3);
a guide block (8) which is rotatably mounted on the wire guide (3);
wherein the guide block (8) rolls along the strip-shaped groove (6).
4. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 3, wherein: the outer surface of the wire guide piece (3) is provided with an annular limiting groove, and the section of the annular limiting groove is semicircular.
5. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 4, wherein: support body (4) include:
the end cover (9) is provided with a bearing (10) on one end face, and the end face of the guide wire roller (1) is fixedly connected with the inner surface of the bearing (10);
the mounting seat (11) is arranged at the other end of the end cover (9), and a lubricating component is arranged on the mounting seat (11);
wherein, elasticity adjusting part sets up the lower terminal surface at mount pad (11).
6. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 5, wherein: the lubrication assembly includes:
a lubricating cylinder (12) fixedly mounted on the upper end surface of the mounting seat (11);
and the oil supply piece is used for conveying the lubricating oil in the lubricating cylinder (12) to the balls of the bearing (10).
7. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 6, wherein said oil supplying member comprises:
one end of the oil delivery pipe (13) is fixedly connected with an oil outlet of the lubricating cylinder (12);
and the oil conveying channel (14) is arranged on the end cover (9) and the outer ring of the bearing (10), one end of the oil conveying channel (14) is fixedly connected with the other end of the oil conveying pipe (13), and the other end of the oil conveying channel (14) is directly communicated with a space where the balls are located.
8. The thread guiding roller mechanism for processing to maintain constant tension of POY high elastic thread as claimed in claim 7, wherein: the elasticity adjustment assembly includes:
the telescopic end of the lifting column (15) is fixedly connected with the lower end face of the mounting seat (11);
the spring (16) is arranged outside the lifting column (15), and the upper end surface of the spring is fixedly connected with the lower end surface of the mounting seat (11);
and the mounting bottom plate (17) is fixedly connected with the main body part of the lifting column (15), and the lower end of the spring (16) is fixedly connected with the upper end face of the mounting bottom plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222629791.7U CN218203271U (en) | 2022-10-08 | 2022-10-08 | Wire guide roller mechanism for processing capable of keeping constant tension of POY high-elastic yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222629791.7U CN218203271U (en) | 2022-10-08 | 2022-10-08 | Wire guide roller mechanism for processing capable of keeping constant tension of POY high-elastic yarn |
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| CN218203271U true CN218203271U (en) | 2023-01-03 |
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| CN202222629791.7U Active CN218203271U (en) | 2022-10-08 | 2022-10-08 | Wire guide roller mechanism for processing capable of keeping constant tension of POY high-elastic yarn |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116180290A (en) * | 2023-01-06 | 2023-05-30 | 苏州市卡尔精密陶瓷有限公司 | Polyester POY pre-network device |
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2022
- 2022-10-08 CN CN202222629791.7U patent/CN218203271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116180290A (en) * | 2023-01-06 | 2023-05-30 | 苏州市卡尔精密陶瓷有限公司 | Polyester POY pre-network device |
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