CN115321265A

CN115321265A - Traction device for inserting and butting thread ends of fully drawn yarns and traction method thereof

Info

Publication number: CN115321265A
Application number: CN202210950092.4A
Authority: CN
Inventors: 刘冰灵
Original assignee: Minjiang University
Current assignee: Minjiang University
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-11

Abstract

The invention discloses a traction device for inserting and butting the thread ends of fully drawn yarns and a traction method thereof, wherein the traction device comprises a clamping mechanism mounting frame arranged in the middle of the upper end surface of a base, a clamping mechanism is arranged in the clamping mechanism mounting frame, and a clamping wheel is rotatably arranged in the clamping mechanism; the roller-type rolling mill is characterized by further comprising movable mounting frames, wherein the movable mounting frames are arranged on the front side of the upper end face of the base, sliding seats are arranged at the bottoms of the movable mounting frames, and first rotating rollers are arranged between the movable mounting frames; the device also comprises fixed mounting frames which are arranged at the rear side of the upper end surface of the base, a second rotating roller is arranged between the fixed mounting frames, and a conveying clamping belt is arranged between the first rotating roller and the second rotating roller; tension adjusting mechanisms are arranged inside the first adjusting device and the second adjusting device, and the problems that the POY yarns are broken and deformed due to the fact that pressure points are concentrated and temperature difference changes in the process that the POY yarns are inserted into the shaping hot box by the traction device are solved.

Description

Traction device for inserting and butting thread ends of fully drawn yarns and traction method thereof

Technical Field

The invention relates to the technical field of silk yarn traction devices, in particular to a traction device for inserting and butting the ends of fully drawn yarns and a traction method thereof.

Background

With the continuous development of textile technology, the conventional POY (polyester pre-oriented yarn) yarn is processed into DTY (draw textured yarn) yarn by means of slice spinning towards the POY yarn processed by means of solution direct spinning, the false-twisted POY yarn is conveyed to a texturing hot wire, the POY yarn is gradually changed under the action of heat, stretching force and twisting force, and the POY yarn gradually has high strength, high elasticity and fluffiness, so that the DTY yarn is prepared.

For example, in a patent granted in China (China) with publication number CN105133107A, namely a POY (polyester pre-oriented yarn) production process for processing POY (polyester pre-oriented yarn) into DTY (draw textured yarn) based on a texturing machine, the POY is processed into the DTY, and the POY is sequentially subjected to the following steps of POY, a yarn shearing device, a first roller, a texturing hot box, a cooling plate, a false twister, a second roller, a shaping hot box, a netlike device, a third roller, an oiling roller, a winding roller, winding, grading inspection, DTY packaging and warehousing. POY (pre-oriented yarn) is processed into DTY by a series of production processes, the production process route is close to the conventional POY-DTY route, but the degree of automation is high, the process operation is more stable, the parameters are more reasonable, the DTY has unique bulkiness and good dimensional stability, the internal stress in most deformation can be eliminated, and the DTY has moderate bulkiness and elasticity.

Although the integrated forming from the POY wire to the DTY wire can be realized in the prior art, the POY wire is stretched into the heating mechanism to be subjected to heat setting, the temperature difference between the outer end and the inner end is large, the POY wire can be broken when the traction device conveys the POY wire, and the POY wire is clamped and pulled by two clamping wheels at present, but the pressure of contact points is concentrated, so that the clamping effect can be ensured, the POY wire can be deformed before the heat forming to further influence the forming effect, and the existing requirements are not met.

Disclosure of Invention

The invention aims to provide a traction device for inserting and butting the thread ends of fully drawn threads and a traction method thereof, so as to solve the problems of pressure point concentration and fracture and deformation caused by temperature difference change in the process that the POY threads are inserted into a shaping hot box by the traction device in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a traction device for inserting and butting fully drawn yarn ends comprises a clamping mechanism mounting frame arranged in the middle of the upper end face of a base, a clamping mechanism is arranged inside the clamping mechanism mounting frame, and a clamping wheel is rotatably arranged inside the clamping mechanism;

the roller type rolling mill is characterized by further comprising a movable mounting frame, wherein the movable mounting frame is arranged on the front side of the upper end face of the base, a sliding seat is arranged at the bottom of the movable mounting frame and is in sliding fit with the base through a movable groove, a first rotating roller is arranged between the movable mounting frames, and two ends of the first rotating roller are rotatably connected with the movable mounting frame;

the device comprises a base, a first rotating roller, a second rotating roller, a fixing mounting frame, a first conveying clamping belt and a second conveying clamping belt, wherein the first rotating roller is arranged on the upper end face of the base;

the tension adjusting mechanism is characterized by further comprising a first adjusting device, the first adjusting device is arranged at the rear end of the fixed mounting frame, a second adjusting device is arranged at the rear end of the first adjusting device, and tension adjusting mechanisms are arranged inside the first adjusting device and the second adjusting device.

Preferably, the tension adjusting mechanism is internally provided with a tension pulley, connecting shafts are fixedly arranged on two sides of the tension pulley, a detection cavity is formed in the inner walls of two sides of the tension adjusting mechanism inside the first adjusting device, a movable block is arranged in the middle of the detection cavity, one side of the movable block is connected with the detection cavity in a sliding mode, the other side of the movable block is connected with the other end of the connecting shaft through a bearing, the upper end and the lower end of the detection cavity are respectively provided with a first touch switch and a second touch switch, the upper end and the lower end of the movable block are respectively provided with a thimble, the thimbles are respectively matched with the first touch switch and the second touch switch, and a supporting spring is arranged between the movable block and the detection cavity.

Preferably, the first trigger switch and the second trigger switch in the first adjusting device are installed at opposite positions to the first trigger switch and the second trigger switch in the second adjusting device.

Preferably, tension adjustment mechanism's both sides are all fixed and are provided with the second slider, first screw thread transfer line is all installed to the inside both sides of first adjusting device and second adjusting device, and the external screw thread of first screw thread transfer line is reverse setting each other among first adjusting device and the second adjusting device, and the upper end of first screw thread transfer line rotates with first adjusting device and second adjusting device respectively and is connected, the fixed second servo motor that is provided with in the inside rear end of base, drive gear is installed to second servo motor's output shaft, drive gear is all installed to drive gear's both sides, and drive gear meshes with drive gear and is connected, and drive gear up end central point puts the lower extreme key-type connection with first screw thread transfer line.

Preferably, the inside front end of base is provided with the tensioning and adjusts the chamber, the internally mounted in chamber is adjusted in the tensioning has second screw thread transfer line, and the one end of second screw thread transfer line passes through the bearing with the base and is connected, the externally mounted of second screw thread transfer line has first slider, and the bottom and the first slider fixed connection of sliding seat, the rear end in chamber is adjusted in the tensioning is provided with a servo motor, and the output shaft of a servo motor passes through the shaft coupling transmission with the other end of second screw thread transfer line and is connected.

Preferably, a guide fixing frame is fixedly arranged between the upper ends of the movable mounting frames, a telescopic rod is arranged inside the guide fixing frame, a guide mechanism is fixedly arranged at the lower end of the telescopic rod, a reset spring is arranged between the upper ends of the guide mechanism and the telescopic rod, a guide wheel is rotatably arranged inside the guide mechanism, and the guide wheel is attached to the conveying clamping belt.

Preferably, a silk thread pressing block is integrally formed in the middle of the outer portion of the clamping wheel, a silk thread groove is formed in the middle of the outer portion of the conveying clamping belt, and the depth of the silk thread groove is smaller than that of the POY silk.

Preferably, the intermediate position department of fixture mounting bracket top is provided with adjusting bolt, and adjusting bolt's one end passes through screw-thread fit with the roof of fixture mounting bracket, and adjusting bolt's bottom passes through the bearing with fixture's up end and is connected, fixture's both sides all are provided with spacing slider, and spacing slider and fixture mounting bracket sliding connection.

Preferably, a driving motor is installed in the middle of the inside of the base, and an output shaft of the driving motor is connected with one end of the second rotating roller through a transmission device.

The traction method of the traction device for inserting and butting the thread ends of the fully drawn yarns comprises the following steps of:

firstly, a worker firstly leads a POY (polyester pre-oriented yarn) to pass through the lower part of a guide wheel, the lower half part of the POY is positioned in a yarn groove, and the guide wheel is propped against the POY under the action of a return spring to finish primary traction positioning;

secondly, enabling the POY to penetrate through the lower part of the clamping wheel by a worker, placing the POY in a wire groove of the conveying clamping belt, rotating the adjusting bolt, converting rotary motion into linear motion under the action of friction force of a top plate of a mounting frame of the clamping mechanism, driving the clamping wheel to move downwards through the clamping mechanism, enabling a wire pressing block outside the clamping wheel to be attached to the POY in the wire groove, and at the moment, gradually bending the conveying clamping belt towards the center from straight;

step three, the POY wire passing through the clamping mechanism passes through the upper part of a tension wheel in the first adjusting device and simultaneously passes through the lower part of the tension wheel in the second adjusting device until the POY wire is inserted into the shaping hot box, the moving path is S-shaped, and the POY wire is inserted in a straight state under the action of the two tension wheels;

step four, starting a driving motor, and driving a second rotary roller to rotate under the coordination of the output of the driving motor and a transmission device so as to convey the POY yarns above;

step five, if the tightening force of the POY filaments is too large, force is applied to the tension wheels respectively, the tension wheels in the first adjusting device move downwards, the tension wheels in the second adjusting device move upwards, so that the ejector pins at one end of the movable block are in contact with the first touch switch, the movement speed of the conveying clamping belt is reduced, meanwhile, the second servo motor is started, an output shaft of the second servo motor drives the driving gear to rotate, the two transmission gears synchronously rotate under the meshing action, the first threaded transmission rods in the first adjusting device and the second adjusting device further rotate, and then are matched with the second sliding block to realize linear movement, the tension wheels in the first adjusting device move downwards, the tension wheels in the second adjusting device move upwards, the two tension wheels gradually move towards the same horizontal line, the limiting tension of the POY filaments is also gradually reduced, and the POY filaments are matched with the conveying clamping belt to avoid breakage of the POY filaments;

and step six, if the tightening force of the POY is too small, the POY is contacted with a second touch switch under the action of a supporting spring, the conveying clamping belt performs accelerated motion, and the distance between two tension wheels is increased under the action of an adjusting device, so that the tension is improved.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the clamping mechanism mounting frame is arranged, before the traction device is started, a worker can enable the POY to pass through the lower part of the clamping wheel and place the POY in the wire groove of the conveying clamping belt, the rotating motion is converted into linear motion under the action of friction force of the clamping mechanism mounting frame top plate through rotating the adjusting bolt, so that the clamping wheel is driven to move downwards through the clamping mechanism, the wire pressing block outside the clamping wheel is attached to the POY in the wire groove, the upper conveying clamping belt is gradually bent towards the center from straight under the action of pressure, then the driving motor is started, the output of the driving motor drives the second rotating roller to rotate under the cooperation of the driving device, and accordingly the POY above is conveyed.

2. The invention is provided with a first adjusting device and a second adjusting device, POY wires passing through a clamping mechanism pass through the upper part of a tension pulley in the first adjusting device, simultaneously pass through the lower part of the tension pulley in the second adjusting device until the POY wires are inserted into a shaping hot box, the moving path is S-shaped and is acted by the two tension pulleys, the POY wires can be inserted in a straight state, through the arrangement of detection cavities in the inner walls at the two sides of the tension adjusting mechanism, if the POY wires are too high in tightening force, the POY wires are respectively forced by the tension pulleys, the tension pulley in the first adjusting device moves downwards, the tension pulley in the second adjusting device moves upwards, so that ejector pins at one end of a movable block are all contacted with a first touch switch, on one hand, the moving speed of a conveying clamping belt is reduced, on the other hand, a second servo motor is started, and an output shaft of the second servo motor drives a driving gear to rotate, the two transmission gears synchronously rotate under the meshing action, so that the first thread transmission rods in the first adjusting device and the second adjusting device rotate, the thread directions of the first thread transmission rods in the two adjusting devices are opposite, and then the first thread transmission rods are matched with the second sliding block to realize linear motion, the tension pulley in the first adjusting device moves downwards, the tension pulley in the second adjusting device moves upwards, the two tension pulleys gradually move towards the same horizontal line, the limiting tension on the POY is gradually reduced, the POY is prevented from being broken by matching with the conveying clamping belt, otherwise, the tension is too low, the POY is contacted with the second trigger switch under the action of the supporting spring, the conveying clamping belt not only performs accelerated motion, but also the distance between the two tension pulleys is increased under the action of the adjusting device, so that the tension is improved, and the straightness of the POY inserted into the shaping hot box is ensured.

3. According to the device, the tensioning adjusting cavity is arranged at the front end inside the base, the clamping wheel only clamps the POY before the equipment is started, after the equipment is started, the clamping degree of the POY is adjusted by using the conveying clamping belt, the output shaft of the first servo motor drives the second threaded transmission rod to rotate by starting the first servo motor, the rotary motion is converted into linear motion under the friction fit with the first sliding block, the movable mounting frame provided with the first rotary roller can horizontally move, the conveying clamping belt can be tensioned when the movable mounting frame moves towards the outer side, the POY is attached to the clamping wheel more tightly, and the conveying clamping belt can be loosened when the movable mounting frame moves towards the inner side, so that the clamping force is reduced, and the deformation of the POY caused by overlarge pressure is relieved.

4. According to the invention, the guide fixing frame is arranged between the upper ends of the movable mounting frames, the guide wheel in the guide fixing frame is used for realizing the stability of the POY wire below the clamping wheel, the POY wire preferentially passes through the lower part of the guide wheel by a worker, and meanwhile, the POY wire is positioned in the wire groove, so that the guide wheel can be abutted against the POY wire under the action of the reset spring, and the phenomenon that the POY wire is moved out of the wire groove in the process of being pulled to the clamping wheel to cause disorder in the pulling process is avoided.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a perspective view of the adjustment device of the present invention;

FIG. 4 is a schematic view of the internal structure of the tension adjusting mechanism of the present invention;

FIG. 5 is a perspective view of the clamping mechanism of the present invention;

FIG. 6 is an enlarged view of a portion of the area A of FIG. 1 in accordance with the present invention;

fig. 7 is a partial enlarged view of the area B in fig. 2 according to the present invention.

In the figure: 1. a base; 2. a movable mounting frame; 3. fixing the mounting rack; 4. a first rotating roller; 5. a second rotating roller; 6. conveying the clamping belt; 7. a wire groove; 8. a guide fixing frame; 9. a movable groove; 10. a sliding seat; 11. a clamping mechanism mounting frame; 12. a clamping mechanism; 13. a clamping wheel; 14. a partition plate; 15. adjusting the bolt; 16. a transmission device; 17. a first adjusting device; 18. a second adjustment device; 19. a tension adjusting mechanism; 20. a first threaded drive link; 21. a tension pulley; 22. tensioning the adjustment chamber; 23. a second threaded drive link; 24. a first slider; 25. a first servo motor; 26. a limiting slide block; 27. a second slider; 28. a second servo motor; 29. a drive gear; 30. a transmission gear; 31. a connecting shaft; 32. a detection chamber; 33. a support spring; 34. a thimble; 35. a first trigger switch; 36. a second trigger switch; 37. pressing the silk threads into blocks; 38. a guide mechanism; 39. a guide wheel; 40. a telescopic rod; 41. a return spring; 42. a movable block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-7, an embodiment of the present invention is shown: a traction device for inserting and butting the thread ends of fully drawn yarns comprises a clamping mechanism mounting frame 11 arranged in the middle of the upper end surface of a base 1, a clamping mechanism 12 arranged inside the clamping mechanism mounting frame 11, and a clamping wheel 13 rotatably arranged inside the clamping mechanism 12;

the device is characterized by further comprising a movable mounting frame 2, the movable mounting frame 2 is arranged on the front side of the upper end face of the base 1, a sliding seat 10 is arranged at the bottom of the movable mounting frame 2, the sliding seat 10 is in sliding fit with the base 1 through a movable groove 9, a first rotating roller 4 is arranged between the movable mounting frames 2, and two ends of the first rotating roller 4 are rotatably connected with the movable mounting frame 2;

the device is characterized by further comprising a fixed mounting frame 3, wherein the fixed mounting frame 3 is arranged on the rear side of the upper end face of the base 1, the fixed mounting frame 3 and the base 1 are fixed through bolts, a second rotary roller 5 is mounted between the fixed mounting frames 3, two ends of the second rotary roller 5 are rotatably connected with the fixed mounting frames 3, and a conveying clamping belt 6 is arranged between the first rotary roller 4 and the second rotary roller 5;

the tension adjusting device further comprises a first adjusting device 17 arranged at the rear end of the fixed mounting frame 3, a second adjusting device 18 is arranged at the rear end of the first adjusting device 17, and tension adjusting mechanisms 19 are arranged inside the first adjusting device 17 and the second adjusting device 18.

Referring to fig. 1-4, the tension adjusting mechanism 19 is provided with tension wheels 21, the two sides of each tension wheel 21 are fixedly provided with a connecting shaft 31, the inner walls of the two sides of the tension adjusting mechanism 19 inside the first adjusting device 17 are provided with detection cavities 32, the middle positions of the detection cavities 32 are provided with movable blocks 42, one sides of the movable blocks 42 are slidably connected with the detection cavities 32, the other sides of the movable blocks 42 are connected with the other ends of the connecting shafts 31 through bearings, the upper and lower ends of the detection cavities 32 are respectively provided with a first trigger switch 35 and a second trigger switch 36, the upper and lower ends of the movable blocks 42 are respectively provided with ejector pins 34, the ejector pins 34 are respectively matched with the first trigger switch 35 and the second trigger switch 36, a supporting spring 33 is provided between the movable blocks 42 and the detection cavities 32, the too large tension force of the POY filament reduces the movement speed of the conveying clamping belt 6, on the other hand, the tension wheels 21 in the first adjusting device 17 move downwards, the second adjusting device 18 moves upwards, and the tension wheels 21 gradually move towards the same horizontal line, the same tension limit tension of the POY filament, and further reduce the tension of the conveying clamping belt 6, and accordingly, and prevent the clamping belt from being broken by the straight tension wheels 21 from gradually increasing, and accordingly, and the straight tension of the clamping belt from increasing and accordingly, and the clamping belt.

Referring to fig. 4, the first trigger switch 35 and the second trigger switch 36 of the first adjusting device 17 are installed at opposite positions to the first trigger switch 35 and the second trigger switch 36 of the second adjusting device 18.

Referring to fig. 2 and 4, the two sides of the tension adjusting mechanism 19 are both fixedly provided with second sliders 27, the two sides of the interiors of the first adjusting device 17 and the second adjusting device 18 are both provided with first threaded transmission rods 20, the external threads of the first threaded transmission rods 20 in the first adjusting device 17 and the second adjusting device 18 are arranged in opposite directions, the upper ends of the first threaded transmission rods 20 are rotatably connected with the first adjusting device 17 and the second adjusting device 18, the rear end of the interior of the base 1 is fixedly provided with a second servo motor 28, the output shaft of the second servo motor 28 is provided with a driving gear 29, the two sides of the driving gear 29 are both provided with transmission gears 30, the transmission gears 30 are meshed with the driving gear 29, the center positions of the upper end surfaces of the transmission gears 30 are in key connection with the lower end of the first threaded transmission rods 20, the output shaft of the second servo motor 28 drives the driving gear 29 to rotate, the two transmission gears 30 are synchronously rotated under the meshing action, and the first threaded transmission rods 20 in the first adjusting device 17 and the second adjusting device 18 are further rotated.

Referring to fig. 2, a tensioning adjusting cavity 22 is arranged at the front end inside the base 1, a second threaded transmission rod 23 is arranged inside the tensioning adjusting cavity 22, one end of the second threaded transmission rod 23 is connected with the base 1 through a bearing, a first slider 24 is arranged outside the second threaded transmission rod 23, the bottom of the sliding seat 10 is fixedly connected with the first slider 24, a first servo motor 25 is arranged at the rear end of the tensioning adjusting cavity 22, an output shaft of the first servo motor 25 is in transmission connection with the other end of the second threaded transmission rod 23 through a coupler, the movable mounting frame 2 provided with the first rotating roller 4 can horizontally move, when the movable mounting frame moves towards the outside, the conveying clamping belt 6 can be tensioned, so that the POY wire is attached to the clamping wheel 13 more tightly, when the movable mounting frame moves towards the inside, the conveying clamping belt 6 can be loosened, clamping force is reduced, and deformation of the POY wire caused by excessive pressure is relieved.

Referring to fig. 1, 2, 6 and 7, a guide fixing frame 8 is fixedly arranged between the upper ends of the movable mounting frames 2, an expansion link 40 is arranged inside the guide fixing frame 8, a guide mechanism 38 is fixedly arranged at the lower end of the expansion link 40, a return spring 41 is arranged between the guide mechanism 38 and the upper end of the expansion link 40, a guide wheel 39 is rotatably arranged inside the guide mechanism 38, the guide wheel 39 is attached to the conveying clamping belt 6, and the guide wheel 39 is used for realizing the stability of the POY filaments below the clamping wheel 13.

Referring to fig. 5, a filament pressing block 37 is integrally formed at the middle position outside the clamping wheel 13, a filament groove 7 is formed at the middle position outside the conveying and clamping belt 6, and the depth of the filament groove 7 is smaller than that of the POY filament, so that the filament groove 7 is ensured to limit the POY filament and the clamping wheel 13 is enabled to contact the POY filament.

Referring to fig. 1, 2 and 5, an adjusting bolt 15 is disposed at a middle position above the clamping mechanism mounting frame 11, one end of the adjusting bolt 15 is in threaded fit with a top plate of the clamping mechanism mounting frame 11, the bottom of the adjusting bolt 15 is connected with an upper end surface of the clamping mechanism 12 through a bearing, two sides of the clamping mechanism 12 are respectively provided with a limiting slider 26, the limiting sliders 26 are in sliding connection with the clamping mechanism mounting frame 11, the rotating motion is converted into a linear motion under the action of friction force with the top plate of the clamping mechanism mounting frame 11, so that the clamping mechanism 12 drives the clamping wheel 13 to move downwards, and a yarn pressing block 37 outside the clamping wheel is attached to the POY yarn inside the yarn groove 7.

Referring to fig. 1 and 2, a driving motor is installed at a middle position inside the base 1, and an output shaft of the driving motor is connected with one end of the second rotating roller 5 through a transmission device 16.

The traction method of the traction device for inserting and butting the thread ends of the fully drawn yarns comprises the following steps:

firstly, a worker firstly leads the POY to pass through the lower part of the guide wheel 39, at the moment, the lower half part of the POY is positioned in the wire slot 7, and the guide wheel 39 is propped against the POY under the action of the return spring 41 to complete primary traction and positioning;

secondly, the worker penetrates through the POY filaments from the lower part of the clamping wheel 13 and places the POY filaments in the filament groove 7 of the conveying clamping belt 6, the adjusting bolt 15 is rotated, rotary motion is converted into linear motion under the action of friction force of a top plate of a mounting frame 11 of the clamping mechanism, the clamping wheel 13 is driven to move downwards through the clamping mechanism 12, a filament pressing block 37 outside the clamping wheel is attached to the POY filaments in the filament groove 7, and the conveying clamping belt 6 is bent towards the center gradually from straight;

step three, the POY wire passing through the clamping mechanism 12 passes through the upper part of a tension pulley 21 in the first adjusting device 17, and simultaneously passes through the lower part of the tension pulley 21 in the second adjusting device 18 until the POY wire is inserted into the shaping hot box, the moving path is S-shaped, and the POY wire is inserted in a straight state under the action of the two tension pulleys 21;

step four, starting a driving motor, and driving a second rotary roller 5 to rotate under the coordination of the output of the driving motor and a transmission device 16 so as to convey the POY yarns above;

step five, if the tightening force of the POY filaments is too large, force is respectively applied to the tension wheels 21, the tension wheels 21 in the first adjusting device 17 move downwards, the tension wheels 21 in the second adjusting device 18 move upwards, so that the ejector pins 34 at one end of the movable block 42 are all contacted with the first touch switch 35, the movement speed of the conveying clamping belt 6 is reduced, meanwhile, the second servo motor 28 is started, an output shaft of the second servo motor drives the driving gear 29 to rotate, the two transmission gears 30 synchronously rotate under the meshing action, the first threaded transmission rods 20 in the first adjusting device 17 and the second adjusting device 18 rotate, and then the first servo motor and the second slide block 27 are matched to realize linear movement, wherein the tension wheels 21 in the first adjusting device 17 move downwards, the tension wheels 21 in the second adjusting device 18 move upwards, the two tension wheels 21 gradually move towards the same horizontal line, the limiting tension of the POY filaments is also gradually reduced, and the POY filaments are matched with the conveying clamping belt to avoid breakage of the POY filaments;

and step six, if the tightening force of the POY is too small, the POY is contacted with a second touch switch 36 under the action of a supporting spring 33, the conveying clamping belt 6 performs accelerated motion, and the distance between two tension wheels 21 is increased under the action of an adjusting device, so that the tension is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a draw gear for full drawn yarn end of a thread inserts butt joint, intermediate position department including base (1) up end installs fixture mounting bracket (11), the inside of fixture mounting bracket (11) is provided with fixture (12), the inside rotation of fixture (12) installs centre gripping wheel (13), its characterized in that:

the roller-type rolling machine is characterized by further comprising a movable mounting frame (2) arranged on the front side of the upper end face of the base (1), a sliding seat (10) is arranged at the bottom of the movable mounting frame (2), the sliding seat (10) is in sliding fit with the base (1) through a movable groove (9), a first rotating roller (4) is arranged between the movable mounting frames (2), and two ends of the first rotating roller (4) are rotatably connected with the movable mounting frame (2);

the device is characterized by further comprising a fixed mounting frame (3) which is arranged on the rear side of the upper end face of the base (1), the fixed mounting frame (3) is fixed with the base (1) through bolts, a second rotating roller (5) is installed between the fixed mounting frames (3), two ends of the second rotating roller (5) are rotatably connected with the fixed mounting frames (3), and a conveying clamping belt (6) is arranged between the first rotating roller (4) and the second rotating roller (5);

the tension adjusting device is characterized by further comprising a first adjusting device (17) which is arranged at the rear end of the fixed mounting frame (3), a second adjusting device (18) is arranged at the rear end of the first adjusting device (17), and tension adjusting mechanisms (19) are arranged inside the first adjusting device (17) and the second adjusting device (18).

2. The pulling device for the thread end insertion butt joint of the fully drawn thread according to claim 1, wherein: the tension adjusting mechanism is characterized in that a tension wheel (21) is arranged inside the tension adjusting mechanism (19), connecting shafts (31) are fixedly arranged on two sides of the tension wheel (21), a detection cavity (32) is arranged in inner walls of two sides of the tension adjusting mechanism (19) inside the first adjusting device (17), a movable block (42) is arranged in the middle position of the detection cavity (32), one side of the movable block (42) is connected with the detection cavity (32) in a sliding mode, the other side of the movable block (42) is connected with the other end of the connecting shaft (31) through a bearing, a first touch switch (35) and a second touch switch (36) are arranged at the upper end and the lower end of the detection cavity (32), ejector pins (34) are arranged at the upper end and the lower end of the movable block (42), the ejector pins (34) are matched with the first touch switch (35) and the second touch switch (36) respectively, and supporting springs (33) are arranged between the movable block (42) and the detection cavity (32).

3. The pulling device for the stub insertion butt of fully drawn wire of claim 2, wherein: the installation positions of a first trigger switch (35) and a second trigger switch (36) in the first adjusting device (17) are opposite to the installation positions of the first trigger switch (35) and the second trigger switch (36) in the second adjusting device (18).

4. The pulling device for the thread end insertion butt joint of the fully drawn thread according to claim 2, wherein: the tension adjusting mechanism is characterized in that second sliding blocks (27) are fixedly arranged on two sides of the tension adjusting mechanism (19), first threaded transmission rods (20) are arranged on two sides of the interiors of the first adjusting device (17) and the second adjusting device (18), external threads of the first threaded transmission rods (20) in the first adjusting device (17) and the second adjusting device (18) are arranged in opposite directions, the upper end of each first threaded transmission rod (20) is rotatably connected with the first adjusting device (17) and the second adjusting device (18) respectively, a second servo motor (28) is fixedly arranged at the rear end of the interior of the base (1), a driving gear (29) is arranged on an output shaft of the second servo motor (28), transmission gears (30) are arranged on two sides of the driving gear (29), the transmission gears (30) are meshed with the driving gear (29), and the center positions of the upper end faces of the transmission gears (30) are in key connection with the lower end of the first threaded transmission rods (20).

5. The pulling device for the thread end insertion butt joint of the fully drawn thread according to claim 4, wherein: the utility model discloses a quick-witted, including base (1), tensioning regulation chamber (22), the internally mounted that chamber (22) was adjusted in the tensioning has second screw thread transfer line (23), and the one end of second screw thread transfer line (23) is passed through the bearing with base (1) and is connected, the externally mounted of second screw thread transfer line (23) has first slider (24), and the bottom and first slider (24) fixed connection of sliding seat (10), the rear end that chamber (22) was adjusted in the tensioning is provided with first servo motor (25), and the output shaft of first servo motor (25) passes through the shaft coupling transmission with the other end of second screw thread transfer line (23) and is connected.

6. The pulling device for the thread end insertion butt joint of the fully drawn thread according to claim 5, wherein: the utility model discloses a clamp belt is characterized in that fixed direction mount (8) that is provided with between the upper end of movable mounting bracket (2), the inside of direction mount (8) is provided with telescopic link (40), the lower extreme fixed mounting of telescopic link (40) has guiding mechanism (38), be provided with reset spring (41) between the upper end of guiding mechanism (38) and telescopic link (40), leading wheel (39) are installed in the internal rotation of guiding mechanism (38), and leading wheel (39) laminate mutually with carry clamp belt (6).

7. The pulling device for thread end insertion butt joint of fully drawn threads according to claim 6, wherein: the wire clamping device is characterized in that a wire pressing block (37) is integrally formed in the middle of the outer portion of the clamping wheel (13), a wire groove (7) is formed in the middle of the outer portion of the conveying clamping belt (6), and the depth of the wire groove (7) is smaller than that of a POY wire.

8. The pulling device for the stub insertion butt of fully drawn wire of claim 7, wherein: the fixture is characterized in that an adjusting bolt (15) is arranged at the middle position above the fixture mounting frame (11), one end of the adjusting bolt (15) is in threaded fit with a top plate of the fixture mounting frame (11), the bottom of the adjusting bolt (15) is connected with the upper end face of the fixture (12) through a bearing, limit sliders (26) are arranged on two sides of the fixture (12), and the limit sliders (26) are connected with the fixture mounting frame (11) in a sliding mode.

9. The pulling device for thread end insertion butt joint of fully drawn threads according to claim 8, wherein: a driving motor is installed in the middle position inside the base (1), and an output shaft of the driving motor is connected with one end of the second rotating roller (5) through a transmission device (16).

10. The pulling method of the pulling device for the thread end insertion butt joint of the fully drawn yarn according to claim 9, wherein: the method comprises the following steps:

firstly, a worker firstly leads a POY (polyester pre-oriented yarn) to pass through the lower part of a guide wheel (39), the lower half part of the POY is positioned in a yarn slot (7), and the guide wheel (39) is propped against the POY under the action of a return spring (41) to finish primary traction and positioning;

secondly, the POY yarns penetrate through the lower portion of the clamping wheel (13) and are placed in a yarn groove (7) of the conveying clamping belt (6) by workers, the adjusting bolt (15) is rotated, rotary motion is converted into linear motion under the action of friction force of a top plate of a mounting frame (11) of the clamping mechanism, the clamping wheel (13) is driven to move downwards through the clamping mechanism (12), a yarn pressing block (37) on the outer portion of the clamping wheel is attached to the POY yarns in the yarn groove (7), and the conveying clamping belt (6) is bent towards the center gradually from straight;

step three, the POY wire passing through the clamping mechanism (12) passes through the upper part of a tension wheel (21) in a first adjusting device (17), and simultaneously passes through the lower part of the tension wheel (21) in a second adjusting device (18) until the POY wire is inserted into the shaping hot box, the moving path is S-shaped, and the POY wire is inserted in a straight state under the action of the two tension wheels (21);

fourthly, starting a driving motor, and driving a second rotating roller (5) to rotate under the matching of the output of the driving motor and a transmission device (16), so as to convey the POY yarns above;

fifthly, if the tightening force of the POY is too large, force is respectively applied to tension wheels (21), the tension wheels (21) in a first adjusting device (17) move downwards, the tension wheels (21) in a second adjusting device (18) move upwards, so that ejector pins (34) at one end of a movable block (42) are all in contact with a first trigger switch (35), the movement speed of the conveying clamping belt (6) is reduced, meanwhile, a second servo motor (28) is started, an output shaft of the second servo motor drives a driving gear (29) to rotate, under the meshing action, two transmission gears (30) synchronously rotate, further a first threaded transmission rod (20) in the first adjusting device (17) and the second adjusting device (18) rotates, and then the first threaded transmission rod and the second sliding block (27) are matched to realize linear movement, the tension wheels (21) in the first adjusting device (17) move downwards, the tension wheels (21) in the second adjusting device (18) move upwards, the two tension wheels (21) gradually move towards the same horizontal line, the tension of the POY is gradually limited, and the POY is gradually limited to avoid breakage of the conveying clamping belt;

and step six, if the tightening force of the POY is too small, the POY is contacted with a second touch switch (36) under the action of a supporting spring (33), the conveying clamping belt (6) performs accelerated motion, and the distance between two tension wheels (21) is increased under the action of an adjusting device, so that the tension is improved.