CN211339857U

CN211339857U - Weft insertion rapier conveying device of rapier loom

Info

Publication number: CN211339857U
Application number: CN201922049355.0U
Authority: CN
Inventors: 王建祥
Original assignee: Hangzhou Changsheng Textile Machinery Factory
Current assignee: Hangzhou Changsheng Textile Machinery Factory
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-25
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a rapier weaving machine's wefting insertion passes sword device, which comprises a frame, rotate and connect in the axis of rotation of frame, with the gear drive subassembly of the power transmission for the axis of rotation of loom driving shaft, fixed cover locates the rolling disc outside the axis of rotation, rotate and connect in the rolling disc of frame, be located and be used for making sector gear along with the rolling disc rotates reciprocal wobbling connecting rod between rolling disc and the sector gear, mesh in sector gear and rotate and connect in the driven gear of frame and be used for transmitting the bevel gear drive subassembly of sword wheel with driven gear's turning force. When the driving shaft rotates, force is transferred through the gear transmission assembly, and then the rotating shaft is driven to rotate. Force is transmitted to the sector gear through the connecting rod, so that the sector gear swings back and forth. The arrangement of the compensation groove can prevent the sector gear from being blocked when the connecting rod moves in the vertical direction. The sector gear swings back and forth to drive the driven gear to rotate forwards and backwards in a reciprocating mode, and reciprocating rotation of the rapier driving wheel is achieved. Thereby meeting the requirement of weft insertion.

Description

Weft insertion rapier conveying device of rapier loom

Technical Field

The utility model relates to a textile machinery, concretely relates to rapier weaving machine's weft insertion passes sword device.

Background

In the prior art, the transmission device of the rapier loom utilizes the power of the loom to make the belt move back and forth by the forward and reverse rotation of the rapier wheel, and the weft is provided for the warp to weave out the fabric. During shuttle stringing, the rapier wheel should also have a temporary standstill between forward and reverse rotation, with continued power. A variety of such transmissions have been proposed.

The common rapier loom weft insertion mechanism mainly comprises a space cam weft insertion mechanism, a variable pitch spiral transmission weft insertion mechanism, a space four-connecting-rod weft insertion mechanism and the like. The space cam weft insertion mechanism has higher requirement on precision and large processing difficulty; the variable-pitch spiral transmission weft insertion mechanism has high manufacturing difficulty and low mechanical transmission efficiency; the design work difficulty of the spatial four-connecting-rod weft insertion mechanism is high; therefore, a weft insertion mechanism needs to be redesigned to meet production requirements.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a rapier weaving machine's weft insertion passes sword device can satisfy the weft insertion demand.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a rapier weaving machine's wefting insertion passes sword device, includes the frame, rotates to be connected in the axis of rotation of frame, with the gear drive subassembly of power transmission for the axis of rotation of loom driving shaft, fixed cover locate the outer rolling disc of axis of rotation, rotate and connect in the rolling disc of frame, be located and be used for making sector gear along with the rolling disc rotates the connecting rod of reciprocal swing, mesh in sector gear and rotate and connect in the driven gear of frame and be used for transmitting the bevel gear drive subassembly of rapier wheel with driven gear's turning force, the compensation groove has been seted up on the sector gear, connecting rod one end eccentric rotation is connected in the rolling disc, the connecting rod other end rotates to be connected in compensation groove and sliding connection in compensation groove.

Through adopting above-mentioned technical scheme, when the driving shaft rotated, pass power through gear drive assembly, and then drive the axis of rotation and rotate. When the rotating shaft rotates, force is transferred to the sector gear through the connecting rod, and the sector gear swings back and forth. The arrangement of the compensation groove can prevent the sector gear from being blocked when the connecting rod moves in the vertical direction. The sector gear swings back and forth to drive the driven gear to rotate forwards and backwards in a reciprocating mode, and therefore reciprocating rotation of the rapier driving wheel is achieved. Thereby meeting the requirement of weft insertion.

The utility model discloses a further set up to: the gear transmission assembly comprises a first gear fixedly sleeved outside the driving shaft and a second gear fixedly sleeved outside the rotating shaft, and the first gear is meshed with the second gear.

Through adopting above-mentioned technical scheme, make this rotating assembly, have compact structure, efficient, longe-lived advantage.

The utility model discloses a further set up to: the axial direction of the driven gear is vertical to the axial direction of the rapier conveying wheel.

By adopting the technical scheme, the gear transmission assembly, the rotating disc and the rotating disc are attached to one side of the rack as far as possible, the occupied space is reduced, and the whole weft insertion rapier conveying device is more compact in structure.

The utility model discloses a further set up to: bevel gear drive assembly includes that fixed mounting wears to locate the first transmission shaft in the casing, rotation in the frame, rotate and wear to locate in the casing and perpendicular to first transmission shaft's second transmission shaft, fixed cover locate first transmission shaft be close to the drive bevel gear of second axis of rotation one end and fixed cover locate the driven bevel gear that second axis of rotation is close to first axis of rotation one end, the fixed cover of driven gear is located first axis of rotation and is kept away from drive bevel gear one end, the fixed cover of biography sword wheel is located the second axis of rotation and is kept away from driven bevel gear one end.

By adopting the technical scheme, the driven bevel gear drives the rapier driving wheel to rotate better through the force transmission of the driving bevel gear and the driven bevel gear. The shell can protect the driving bevel gear and the driven bevel gear, and equipment faults caused by the fact that external sundries enter between the driving bevel gear and the driven bevel gear are reduced.

The utility model discloses a further set up to: the sector gear comprises a sector base disc and an arc-shaped rack fixedly installed on the peripheral wall of the base disc, the base disc is arranged in a rigid mode, one end, far away from the arc surface, of the base disc is rotatably connected to the rack, and the rack is arranged in a flexible mode.

Through adopting above-mentioned technical scheme to reduce the noise that produces when both mesh rotate, improved production environment.

The utility model discloses a further set up to: the rack is detachably connected to the base plate.

When used for a period of time, the rack is easily worn because the rack is less rigid than the base plate. By adopting the technical scheme, only the rack needs to be replaced independently during maintenance and replacement, and the maintenance cost is reduced.

The utility model discloses a further set up to: the base plate is characterized in that a through groove is formed in the arc surface of the base plate along the circumferential direction of the arc surface, a guide strip is arranged on one side of the rack facing the base plate along the circumferential direction of the rack, the guide strip is embedded in the through groove, an installation bolt is connected to the base plate along the axial direction of the base plate through threads, the installation bolt penetrates through the guide strip, and a plurality of guide strips are arranged on the installation bolt along the length direction of the guide strip.

Through adopting above-mentioned technical scheme, when needing to change the rack, unscrew the construction bolt, then slide the gib block from leading to the groove, take off the rack. And then sliding the guide strip corresponding to the new rack into the through groove, and screwing the mounting bolt.

The utility model discloses a further set up to: the first gear is a flexible gear, and the second gear is a rigid gear.

The utility model has the advantages of it is following: 1. the structure is simple and compact, and the weft insertion requirement can be stably met; 2. the production noise is low; 3. the maintenance cost is low.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a partial schematic view of an embodiment;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a cross-sectional view of a bevel gear drive assembly according to an embodiment.

Reference numerals: 1. a frame; 2. a rotating shaft; 3. a gear drive assembly; 4. rotating the disc; 5. a sector gear; 6. a connecting rod; 7. a driven gear; 8. a bevel gear drive assembly; 9. a first gear; 10. a second gear; 11. a compensation groove; 12. a connecting bolt; 13. a connecting nut; 14. a base plate; 15. a rack; 16. a through groove; 17. a guide strip; 18. installing a bolt; 19. a housing; 20. a first drive shaft; 21. a second drive shaft; 22. a drive bevel gear; 23. a driven bevel gear; 24. a tab; 25. a drive shaft; 26. a rapier conveying wheel; 27. a belt; 28. a shuttle is provided.

Detailed Description

As shown in fig. 1, the weft insertion rapier-transferring device of the rapier loom comprises a frame 1, a rotating shaft 2 rotatably connected to the frame 1, a gear transmission assembly 3 for transmitting the power of a driving shaft 25 of the rapier loom to the rotating shaft 2, a rotating disc 4 fixedly sleeved outside the rotating shaft 2, a sector gear 5 rotatably connected to the frame 1, a connecting rod 6 positioned between the rotating disc 4 and the sector gear 5 for enabling the sector gear 5 to swing back and forth along with the rotation of the rotating disc 4, a driven gear 7 meshed with the sector gear 5 and rotatably connected to the frame 1, and a bevel gear transmission assembly 8 for transmitting the rotating force of the driven gear 7 to a rapier-transferring wheel 26.

When the driving shaft 25 rotates, force is transmitted through the gear transmission component 3, and then the rotating shaft 2 is driven to rotate. When the rotating shaft 2 rotates, force is transferred to the sector gear 5 through the connecting rod 6, so that the sector gear 5 swings back and forth. The sector gear 5 swings back and forth to drive the driven gear 7 to rotate forwards and backwards in a reciprocating mode, and therefore reciprocating rotation of the rapier driving wheel 26 is achieved. The rapier wheel 26 transmits force through a belt 27 to drive a shuttle 28 to move, thereby providing weft yarns for warp yarns to weave out fabrics. And weft insertion requirements are met.

Specifically, as shown in fig. 1, the driving shaft 25 is disposed along the running direction of the shuttle 28, and the rapier-transporting wheel 26 is axially directed to the running direction of the shuttle 28. As shown in fig. 2, the gear transmission assembly 3 includes a first gear 9 fixedly sleeved outside the driving shaft 25 and a second gear 10 fixedly sleeved outside the rotating shaft 2, and the first gear 9 is engaged with the second gear 10. The first gear 9 is a flexible gear and the second gear 10 is a rigid gear. That is, the first gear 9 is made of PU or other plastic, and the second gear 10 is made of cast iron or other metal. The force of the driving shaft 25 is transmitted to the rotating shaft 2 by the transmission of the force of the first gear 9 and the second gear 10, so that the rotating shaft 2 can smoothly rotate along with the driving shaft 25 to rotate around one direction.

As shown in fig. 2, a tab 24 is fixedly connected to the rotary disk 4 along a radial direction thereof. One end of the connecting rod 6 is rotatably connected with the lug 24. The sector gear 5 is provided with a compensation groove 11, and the compensation groove 11 is arc-shaped and opens towards the connecting rod 6. The connecting bolt 12 penetrates through one end, far away from the lug 24, of the connecting rod 6, and the connecting bolt 12 is rotatably connected to the connecting rod 6. The connecting bolt 12 passes through the compensating groove 11 and is slidably connected to the compensating groove 11. One end of the connecting bolt 12 is connected with a connecting nut 13 in a threaded manner, and the connecting nut 13 can ensure that the connecting bolt 12 is stably positioned in the compensation groove 11. When the rotating disc 4 rotates, the connecting rod 6 can drive the sector gear 5 to swing back and forth.

As shown in fig. 3, the sector gear 5 includes a sector-shaped base plate 14 and a circular arc-shaped rack 15 fixedly attached to a peripheral wall of the base plate 14 for maintenance. The compensation groove 11 opens onto the base plate 14. The end of the base plate 14 away from the arc surface is rotatably connected to the frame 1. The base plate 14 is rigidly arranged and the rack 15 is flexibly arranged. That is, the rack 15 is made of PU or other plastic, and the base plate 14 is made of cast iron or other metal. A through groove 16 is formed in the arc surface of the base plate 14 along the circumferential direction of the arc surface, a guide strip 17 is arranged on one side, facing the base plate 14, of the rack 15 along the circumferential direction of the rack, and the guide strip 17 is embedded in the through groove 16. The base plate 14 is connected with mounting bolts 18 along the axial direction thereof by screw threads, the mounting bolts 18 penetrate through the guide strips 17, and a plurality of the mounting bolts 18 are arranged along the length direction of the guide strips 17. When the contact point of the sector gear 5 and the driven gear 7 is worn, only the rack 15 needs to be replaced, the whole sector gear 5 does not need to be replaced, and the maintenance cost is reduced.

As shown in fig. 4, the bevel gear transmission assembly 8 includes a housing 19 fixedly mounted on the frame 1, a first transmission shaft 20 rotatably inserted into the housing 19, a second transmission shaft 21 rotatably inserted into the housing 19 and perpendicular to the first transmission shaft 20, a driving bevel gear 22 fixedly secured to one end of the first transmission shaft 20 close to the second transmission shaft 21, and a driven bevel gear 23 fixedly secured to one end of the second transmission shaft 21 close to the first transmission shaft 20. The driven gear 7 is fixedly sleeved on one end of the first rotating shaft 20 far away from the driving bevel gear 22. The rapier wheel 26 is fixedly sleeved on one end of the second rotating shaft 21 far away from the driven bevel gear 23. The driven bevel gear 7 can drive the rapier-transmitting wheel 26 to rotate through the force transmission of the driving bevel gear 22 and the driven bevel gear 23. The housing 19 protects the drive bevel gear 22 and the driven bevel gear 23 and reduces equipment failure caused by foreign objects entering between the drive bevel gear 22 and the driven bevel gear 23.

The weft insertion rapier device has the following specific working principle:

1. the driving shaft 25 rotates to drive the first gear 9 to rotate;

2. the first gear 9 rotates to drive the second gear 10 to rotate, and further drive the rotating shaft 2 to rotate;

3. when the rotating shaft 2 rotates, a crank connecting rod 6 structure is formed through the connecting rod 6, and the sector gear 5 is driven to swing back and forth;

4. the sector gear 5 drives the driven gear 7 to rotate in a reciprocating manner while swinging;

5. the driven gear 7 rotates to drive the first transmission shaft 20 to rotate, and the second transmission shaft 21 is driven to rotate under the force transmission of the driving bevel gear 22 and the driven bevel gear 23, so that the rapier driving wheel 26 is finally driven to rotate in a reciprocating manner; the driving requirement required by weft insertion is met;

6. when the rack 15 is worn, the mounting bolt 18 is unscrewed, then the guide strip 17 is slid away from the through groove 16, and the rack 15 is removed; and then sliding the guide strip 17 corresponding to the new rack 15 into the through groove 16, and screwing the mounting bolt 18.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The weft insertion rapier conveying device of the rapier loom is characterized in that: including frame (1), rotate and connect in axis of rotation (2) of frame (1), with gear drive assembly (3) of power transmission for axis of rotation (2) of loom driving shaft (25), fixed cover locate axis of rotation (2) outer rolling disc (4), rotate fan gear (5) of connecting in frame (1), be located and be used for making fan gear (5) along with rolling disc (4) rotate and connecting rod (6) of reciprocating swing between rolling disc (4) and fan gear (5), mesh in fan gear (5) and rotate and connect in driven gear (7) of frame (1) and be used for transmitting the turning force of driven gear (7) for bevel gear drive assembly (8) of biography sword wheel (26), compensation groove (11) have been seted up on fan gear (5), connecting rod (6) one end eccentric rotation is connected in rolling disc (4), connecting rod (6) other end rotation is connected in compensation groove (11) and sliding connection in compensation groove (11).

2. The weft insertion rapier conveying device of the rapier loom according to claim 1, wherein: the gear transmission assembly (3) comprises a first gear (9) fixedly sleeved outside the driving shaft (25) and a second gear (10) fixedly sleeved outside the rotating shaft (2), and the first gear (9) is meshed with the second gear (10).

3. The weft insertion rapier conveying device of the rapier loom according to claim 2, wherein: the axial direction of the driven gear (7) is vertical to the axial direction of the rapier-conveying wheel (26).

4. The weft insertion rapier conveying device of the rapier loom according to claim 3, wherein: bevel gear drive assembly (8) including casing (19) of fixed mounting on frame (1), rotate and wear to locate first transmission shaft (20) in casing (19), rotate and wear to locate second transmission shaft (21) of casing (19) in and perpendicular to first transmission shaft (20), fixed cover locate first transmission shaft (20) and be close to drive bevel gear (22) of second axis of rotation (21) one end and fixed cover locate second axis of rotation (21) and be close to driven bevel gear (23) of first axis of rotation (20) one end, driven gear (7) fixed cover is located first axis of rotation (20) and is kept away from drive bevel gear (22) one end, biography sword wheel (26) fixed cover is located second axis of rotation (21) and is kept away from driven bevel gear (23) one end.

5. The weft insertion rapier device of the rapier loom according to claim 4, wherein: sector gear (5) include sectorial base plate (14) and fixed mounting in rack (15) of the circular arc type of base plate (14) perisporium, base plate (14) are the rigidity setting, just base plate (14) keep away from its circular arc one end rotation connection in frame (1), rack (15) are the flexible setting.

6. The weft insertion rapier device of the rapier loom according to claim 5, wherein: the rack (15) is detachably connected to the base plate (14).

7. The weft insertion rapier device of the rapier loom according to claim 6, wherein: logical groove (16) have been seted up along its circumference on basal disc (14) arc surface, rack (15) are equipped with gib block (17) along its circumference towards basal disc (14) one side, gib block (17) are inlayed and are located in logical groove (16), there are mounting bolt (18) along its axial threaded connection on basal disc (14), mounting bolt (18) pass gib block (17), mounting bolt (18) are equipped with a plurality of along gib block (17) length direction.

8. The weft insertion rapier device of the rapier loom according to claim 7, wherein: the first gear (9) is a flexible gear, and the second gear (10) is a rigid gear.