CN210796837U - Novel weft insertion device - Google Patents

Abstract

A novel weft feeding device belongs to the technical field of textile equipment; the main transmission gear is driven by the stepping motor and synchronously drives the front transmission gear and the rear transmission gear, so that the front weft feeding roller and the rear weft feeding roller rotate, the power is not required to be transmitted from a main power shaft of the existing crochet machine through a mechanical chain gear, the effect of stepless speed change yarn feeding is realized, and the later adjustment is convenient; the small tension sheet is similar to a plate spring, when the yarn passes through the yarn ring, the yarn keeps uniform tension through the elastic tension of the small tension sheet, and the effect that the woven belt is more attractive is realized; the lower end of the weft yarn blocking device is provided with a through pipe, yarns which come down from a yarn passing ring penetrate into the through pipe, the through pipe surrounds the yarns at the position, the yarns passing through the through pipe reenter the knitting needles of the existing crochet machine, the yarn storage amount can be increased only by a large swing, the existing small swing can be solved, and the effects of saving space and increasing yield are achieved.

Description

Novel weft insertion device

Technical Field

The utility model belongs to the technical field of weaving equipment, specifically be relate to a novel weft insertion device.

Background

A crochet machine is a new type of mechanism that produces decorative fabrics, and the formation of textile products is achieved by twisting a plurality of warp and weft yarns with each other in a predetermined pattern. The yarn feeding structure of the existing weft feeding device of the crochet machine is of a traditional mechanical type, the yarn feeding structure is driven by a chain and a chain wheel from a power main shaft of the crochet machine, the mechanism is complex, the adjustment is difficult, time and labor are wasted, the adjustment time is long when pattern changing is carried out, and the existing weft feeding device has the defects of uneven weft conveying and unattractive tape weaving.

Disclosure of Invention

The utility model mainly solves the technical problem existing in the prior art and provides a novel weft feeding device.

The above technical problem of the present invention can be solved by the following technical solutions: a novel weft feeding device comprises a left supporting plate, a right supporting plate and a weft yarn plate, wherein a first bearing hole is formed in the front upper side of the left supporting plate, a second bearing hole is formed in the rear upper side of the left supporting plate, a third bearing hole is formed in the front upper side of the right supporting plate, a fourth bearing hole is formed in the rear upper side of the right supporting plate, a front weft feeding roller is arranged between the first bearing hole and the third bearing hole, a rear weft feeding roller is arranged between the second bearing hole and the fourth bearing hole, a first weft feeding roller rotating shaft is arranged at the left end of the front weft feeding roller, a second weft feeding roller rotating shaft is arranged at the right end of the front weft feeding roller, a third weft feeding roller rotating shaft is arranged at the left end of the rear weft feeding roller, a fourth weft feeding roller rotating shaft is arranged at the right end of the rear weft feeding roller, the first weft feeding roller rotating shaft is arranged in the first bearing hole, the second weft feeding roller rotating shaft is arranged in the third bearing hole, the fourth weft feeding roller rotating shaft is arranged in a fourth bearing hole, bearings are arranged among the first weft feeding roller rotating shaft and the first bearing hole, the second weft feeding roller rotating shaft and the third bearing hole, the third weft feeding roller rotating shaft and the second bearing hole, and the fourth weft feeding roller rotating shaft and the fourth bearing hole, the left end parts of the first weft feeding roller rotating shaft and the third weft feeding roller rotating shaft extend to the left side of the left supporting plate, a front transmission gear is arranged at the left end of the first weft feeding roller rotating shaft, a rear transmission gear is arranged at the left end of the third weft feeding roller rotating shaft, a motor base is arranged at the left side of the middle part of the left supporting plate, base fixing columns are arranged at the front side and the rear side between the motor base and the left supporting plate, a stepping motor is arranged at the left side of the motor base, an output shaft of the stepping motor penetrates through the motor base, a main transmission gear is arranged on an output shaft of the stepping motor, and is respectively meshed with the front transmission gear and the, the front side of the weft yarn plate is provided with a weft yarn blocking device, the upper end of the weft yarn blocking device is provided with a hook, the upper end of the weft yarn blocking device is fixed on the weft yarn plate through the hook, and the lower end of the weft yarn blocking device is provided with a through pipe.

Preferably, a yarn separating plate is arranged behind the rear weft feeding roller, the upper end face of the yarn separating plate is lower than the lower side face of the rear weft feeding roller, the left end of the yarn separating plate is connected with the rear side of the left supporting plate, the right end of the yarn separating plate is connected with the rear side of the right supporting plate, a plurality of yarn separating strips are arranged on the upper side of the yarn separating plate, and gaps are reserved among the yarn separating strips.

As preferred, upside between preceding weft insertion roller and the back weft insertion roller is equipped with the tensioning roller, the both ends of tensioning roller all are equipped with the tensioning roller pivot, the right side of upper portion all is equipped with the tensioning roller supporting shoe in the left branch fagging and the left side of upper portion in the right branch fagging, the upper end of tensioning roller supporting shoe is equipped with U type recess, the tensioning roller pivot is located in the U type recess, the tensioning roller pivot is swing joint with U type recess, the back tip of the upper right side of left branch fagging and the back tip of the upper left side of right branch fagging all are equipped with and shelve the piece temporarily, the upside of shelving the piece temporarily is equipped with the half slot, the roll body downside of tensioning roller is near on preceding weft insertion roller and back weft insertion roller.

Preferably, the front side of the upper end part of the left support plate and the right support plate is provided with a tension adjusting device, the tension adjusting device comprises a lower support frame and an upper support frame, the joints between the lower support frame and the left support plate and the right support plate are respectively provided with a lower L-shaped support leg, the joints between the upper support frame and the two ends of the lower support frame are respectively provided with an upper L-shaped support leg, the upper L-shaped support leg and the lower L-shaped support leg are connected in a trapezoidal shape, the upper sides of the upper support frame and the lower support frame are respectively provided with a plurality of tension adjusting sheets, the rear end parts of the tension adjusting sheets are provided with a plurality of through holes, the through holes are respectively connected with the upper support frame and the lower support frame through screws, the front end parts of the tension adjusting sheets are provided with a plurality of small tension sheets, the small tension sheets are in a plate spring shape, gaps are left between the small tension, and the middle part of the upper L-shaped support leg is provided with a lead screw.

The utility model discloses a step motor is controlled by current crochet machine controller.

The utility model discloses beneficial effect who has: the main transmission gear is driven by the stepping motor and synchronously drives the front transmission gear and the rear transmission gear, so that the front weft feeding roller and the rear weft feeding roller rotate, the power is not required to be transmitted from a main power shaft of the existing crochet machine through a mechanical chain gear, the effect of stepless speed change yarn feeding is realized, and the later adjustment is convenient; the small tension sheet is similar to a plate spring, when the yarn passes through the yarn ring, the yarn keeps uniform tension through the elastic tension of the small tension sheet, and the effect that the woven belt is more attractive is realized; the upper sides of the lower support frame and the upper support frame are respectively provided with a plurality of tension adjusting sheets, the tension adjusting sheets on the upper support frame and the tension adjusting sheets on the lower support frame have different tensions for yarns, and the yarns can penetrate through the tension adjusting sheets on the upper support frame or the tension adjusting sheets on the lower support frame according to different tension for the yarns, so that the effect of adjusting the tension of the yarns according to the product requirements is realized; the lower end of the weft yarn blocking device is provided with a through pipe, yarns which come down from a yarn passing ring penetrate into the through pipe, the through pipe surrounds the yarns at the position, the yarns which pass through the through pipe enter a knitting needle of the existing crochet machine, the yarn storage amount can be increased only by large swing, the problem of small swing can be solved, and the effects of saving space and increasing yield are realized; the yarn is limited on the yarn inlet position by the yarn separating strip, so that the yarn is not randomly swung when being fed.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view schematic diagram of the present invention;

fig. 3 is a schematic top view of the left and right support plates of the present invention;

fig. 4 is a schematic structural view of the tension roll support block of the present invention;

FIG. 5 is a schematic structural view of the temporary resting block of the present invention;

FIG. 6 is a schematic perspective view of the tension adjusting piece of the present invention;

FIG. 7 is a schematic top view of the tension adjustment tab of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 1;

FIG. 9 is an enlarged view of portion B of FIG. 2;

FIG. 10 is a front view of the present invention mounted on a conventional crochet machine;

FIG. 11 is a rear view of the present invention mounted on a conventional crochet machine;

figure 12 is a schematic view of the yarn of the present invention passing through the front weft insertion roller, the tension roller and the weft insertion roller.

In the figure: 1. a left support plate; 2. a right support plate; 3. a weft plate; 4. a first bearing bore; 5. a second bearing bore; 6. a third bearing hole; 7. a fourth bearing hole; 8. a front weft insertion roller; 9. a rear weft insertion roller; 10. a first weft insertion roller shaft; 11. a second weft insertion roller shaft; 12. a third weft insertion roller shaft; 13. a fourth weft insertion roller shaft; 14. a bearing; 15. a front drive gear; 16. a rear drive gear; 17. a motor base; 18. a base fixing column; 19. a stepping motor; 20. a main drive gear; 21. a weft yarn blocking device; 22. a through pipe; 23. a tension roller; 24. a tension roller rotating shaft; 25. a tension roll support block; 26. a U-shaped groove; 27. a temporary shelving block; 28. a semicircular groove; 29. a tension adjusting device; 30. a lower support frame; 31. an upper support frame; 32. a lower L-shaped leg; 33. an upper L-shaped support leg; 34. a tension adjusting sheet; 35. a through hole; 36. a small tension sheet; 37. passing through a wire ring; 38. passing through a screw rod; 39. a wire separating plate; 40. separating silk strips; 41. a yarn; 42. an existing crochet machine body; 43. a knitting area; 44. existing crochet machine controllers; 45. the direction of rotation; 46. a yarn feed direction; 47. and (4) hooking.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): a novel weft insertion device is shown in figures 1-12 and comprises a left support plate, a right support plate and a weft plate, wherein a first bearing hole is formed in the front upper side of the left support plate, a second bearing hole is formed in the rear upper side of the left support plate, a third bearing hole is formed in the front upper side of the right support plate, a fourth bearing hole is formed in the rear upper side of the right support plate, a front weft insertion roller is arranged between the first bearing hole and the third bearing hole, a rear weft insertion roller is arranged between the second bearing hole and the fourth bearing hole, a first weft insertion roller rotating shaft is arranged at the left end of the front weft insertion roller, a second weft insertion roller rotating shaft is arranged at the right end of the front weft insertion roller, a third weft insertion roller rotating shaft is arranged at the left end of the rear weft insertion roller, a fourth weft insertion roller rotating shaft is arranged at the right end of the rear weft insertion roller, the first weft insertion roller rotating shaft is arranged in the first bearing hole, the second weft insertion roller rotating shaft is arranged in the third bearing hole, the third weft insertion roller rotating shaft is arranged in a second bearing hole, the fourth weft insertion roller rotating shaft is arranged in a fourth bearing hole, bearings are arranged between the first weft insertion roller rotating shaft and the first bearing hole, between the second weft insertion roller rotating shaft and the third bearing hole, between the third weft insertion roller rotating shaft and the second bearing hole, and between the fourth weft insertion roller rotating shaft and the fourth bearing hole, the left end parts of the first weft insertion roller rotating shaft and the third weft insertion roller rotating shaft extend to the left side of a left supporting plate, a front transmission gear is arranged at the left end of the first weft insertion roller rotating shaft, a rear transmission gear is arranged at the left end of the third weft insertion roller rotating shaft, a motor base is arranged at the left side of the middle part of the left supporting plate, base fixing columns are arranged at the front side and the rear side between the motor base and the left supporting plate, a stepping motor is arranged at the left side of the motor base, an output shaft of the stepping motor penetrates through the motor base, and a main transmission gear is arranged, the main transmission gear is meshed with the front transmission gear and the rear transmission gear respectively, a weft yarn blocking device is arranged on the front side of the weft yarn plate, a hook is arranged at the upper end of the weft yarn blocking device, the upper end of the weft yarn blocking device is fixed on the weft yarn plate through the hook, and a through pipe is arranged at the lower end of the weft yarn blocking device.

The rear part of the rear weft feeding roller is provided with a silk partition plate, the upper end surface of the silk partition plate is lower than the lower side surface of the rear weft feeding roller, the left end of the silk partition plate is connected with the rear side of the left supporting plate, the right end of the silk partition plate is connected with the rear side of the right supporting plate, the upper side of the silk partition plate is provided with a plurality of silk partition strips, and gaps are reserved among the silk partition strips; the yarn is limited on the yarn inlet position by the yarn separating strip, so that the yarn is not randomly swung when being fed.

The upper side between the front weft feeding roller and the rear weft feeding roller is provided with a tension roller, two ends of the tension roller are respectively provided with a tension roller rotating shaft, the right side of the middle upper part of the left supporting plate and the left side of the middle upper part of the right supporting plate are respectively provided with a tension roller supporting block, the upper end part of each tension roller supporting block is provided with a U-shaped groove, the tension roller rotating shafts are arranged in the U-shaped grooves, the tension roller rotating shafts are movably connected with the U-shaped grooves, the rear end part of the right upper side of the left supporting plate and the rear end part of the left upper side of the right supporting plate are respectively provided with a temporary placing block, the upper side of each temporary placing block is provided with a semicircular groove, and the lower side of a roller body of; the tensioning roller can be lifted and placed on the temporary placement block, rotating shafts of the tensioning roller at two ends of the tensioning roller are fixedly matched with the semicircular grooves on the temporary placement block, and the temporary placement block has the function of temporarily placing the tensioning roller; the tensioning roller can tension the yarn when the front weft feeding roller and the rear weft feeding roller rotate.

The front side of the upper end part of the left support plate and the right support plate is provided with a tension adjusting device, the tension adjusting device comprises a lower support frame and an upper support frame, the joints between the lower support frame and the left support plate and the right support plate are provided with lower L-shaped support legs, the joints between the upper support frame and the two ends of the lower support frame are provided with upper L-shaped support legs, the joints between the upper L-shaped support legs and the lower L-shaped support legs are in a ladder platform shape, the upper sides of the upper support frame and the lower support frame are provided with a plurality of tension adjusting sheets, the rear end parts of the tension adjusting sheets are provided with a plurality of through holes, the through holes are respectively connected with the upper support frame and the lower support frame through screws, the front end part of each tension adjusting sheet is provided with a plurality of small tension sheets, each small tension sheet is in a plate spring shape, gaps are reserved among the small tension sheets, a lead screw is arranged in the middle of the upper L-shaped support leg; the small tension sheet is similar to a plate spring, when the yarn passes through the yarn ring, the yarn keeps uniform tension through the elastic tension of the small tension sheet, and the effect that the woven belt is more attractive is realized; the upside of under bracing frame and upper bracing frame all is equipped with a plurality of tension control pieces, and the tension control piece on the upper bracing frame and the tension control piece on the under bracing frame are all different to the tension of yarn, and according to the tensile difference of production requirement to the yarn, can pass the tension control piece on the upper bracing frame or the tension control piece on the under bracing frame with the yarn, realize carrying out the effect adjusted to yarn tension according to the product requirement.

The utility model discloses an operation principle: firstly, the power system of the existing crochet machine and the stepping motor of the utility model are simultaneously closed through the existing crochet machine controller, an operator lifts the tension roller and puts the tension roller on the temporary shelving block, the rotation shafts of the tension rollers at the two ends of the tension roller are fixed by the semicircular grooves on the temporary shelving block, the yarn is introduced between two adjacent separated filament bundles, the yarn enters from the lower side of the back weft feeding roller as shown in figure 12 and winds upwards from the front side of the back weft feeding roller, the operator puts the tension roller back on the support block of the tension roller, the yarn winds clockwise from the upper side of the tension roller to the rear side of the front weft feeding roller, and the yarn feeds forwards through the lower side of the front weft feeding roller; an operator pulls the yarn wound out from the lower side of the front weft feeding roller onto a yarn passing rod, the yarn is led into a tension adjusting sheet on an upper support frame or a tension adjusting sheet on a lower support frame through the yarn passing rod, a yarn passing ring fixes the yarn on a set position, and the yarn keeps uniform tension through the elastic tension of a small tension sheet; the operation worker penetrates the yarn into a yarn passing pipe at the lower end of the weft yarn blocking device, the yarn is surrounded at the position through the yarn passing pipe, and the yarn passing through the yarn passing pipe penetrates into a knitting needle of the existing crochet machine; the weft yarn plate of the utility model is connected with the weft yarn plate transmission device of the existing crochet machine, and the weft yarn plate of the utility model is driven by the weft yarn plate transmission device of the existing crochet machine; an operator operates the existing crochet machine controller to start the existing crochet machine, meanwhile, the stepping motor starts to operate, the stepping motor drives the main transmission gear, the main transmission gear synchronously drives the front transmission gear and the rear transmission gear to enable the front weft feeding roller and the rear weft feeding roller to rotate, the transmission of the front weft feeding roller and the rear weft feeding roller enables yarns to feed, and the yarns enter a weaving area to be woven.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims (4)

1. A novel weft feeding device comprises a left supporting plate, a right supporting plate and a weft yarn plate, wherein a first bearing hole is formed in the front upper side of the left supporting plate, a second bearing hole is formed in the rear upper side of the left supporting plate, a third bearing hole is formed in the front upper side of the right supporting plate, a fourth bearing hole is formed in the rear upper side of the right supporting plate, a front weft feeding roller is arranged between the first bearing hole and the third bearing hole, a rear weft feeding roller is arranged between the second bearing hole and the fourth bearing hole, a first weft feeding roller rotating shaft is arranged at the left end of the front weft feeding roller, a second weft feeding roller rotating shaft is arranged at the right end of the front weft feeding roller, a third weft feeding roller rotating shaft is arranged at the left end of the rear weft feeding roller, a fourth weft feeding roller rotating shaft is arranged at the right end of the rear weft feeding roller, the first weft feeding roller rotating shaft is arranged in the first bearing hole, the second weft feeding roller rotating shaft is arranged in the third bearing hole, the fourth weft feeding roller rotating shaft is arranged in a fourth bearing hole, bearings are arranged among the first weft feeding roller rotating shaft and the first bearing hole, the second weft feeding roller rotating shaft and the third bearing hole, the third weft feeding roller rotating shaft and the second bearing hole, and the fourth weft feeding roller rotating shaft and the fourth bearing hole, the left end parts of the first weft feeding roller rotating shaft and the third weft feeding roller rotating shaft extend to the left side of the left supporting plate, a front transmission gear is arranged at the left end of the first weft feeding roller rotating shaft, a rear transmission gear is arranged at the left end of the third weft feeding roller rotating shaft, a motor base is arranged at the left side of the middle part of the left supporting plate, base fixing columns are arranged at the front side and the rear side between the motor base and the left supporting plate, a stepping motor is arranged at the left side of the motor base, an output shaft of the stepping motor penetrates through the motor base, a main transmission gear is arranged on an output shaft of the stepping motor, and is respectively meshed with the front transmission gear and the, the front side of the weft yarn plate is provided with a weft yarn blocking device, the upper end of the weft yarn blocking device is provided with a hook, the upper end of the weft yarn blocking device is fixed on the weft yarn plate through the hook, and the lower end of the weft yarn blocking device is provided with a through pipe.

2. A novel weft feeder according to claim 1, characterized in that a filament separating plate is arranged behind the rear weft feeding roller, the upper end surface of the filament separating plate is lower than the lower side surface of the rear weft feeding roller, the left end of the filament separating plate is connected with the rear side of the left support plate, the right end of the filament separating plate is connected with the rear side of the right support plate, a plurality of filament separating strips are arranged on the upper side of the filament separating plate, and gaps are reserved among the filament separating strips.

3. The weft feeder according to claim 1, wherein a tension roller is disposed on the upper side between the front weft feeding roller and the rear weft feeding roller, rotation shafts of the tension roller are disposed at both ends of the tension roller, support blocks for the tension roller are disposed on the right side of the upper middle portion of the left support plate and the left side of the upper middle portion of the right support plate, a U-shaped groove is disposed at the upper end of each support block, the rotation shafts of the tension roller are disposed in the U-shaped groove, the rotation shafts of the tension roller are movably connected with the U-shaped groove, temporary placement blocks are disposed on the rear end of the upper right side of the left support plate and the rear end of the upper left side of the right support plate, a semicircular groove is disposed on the upper side of each temporary placement block, and the lower side of the roller body of the tension roller is abutted against the front weft feeding roller.

4. A novel weft feeder according to claim 1, characterized in that the front side of the upper end of the left and right support plates is provided with a tension adjusting device, the tension adjusting device comprises a lower support frame and an upper support frame, the joints between the lower support frame and the left and right support plates are provided with lower L-shaped support legs, the joints between the upper support frame and the two ends of the lower support frame are provided with upper L-shaped support legs, the connection between the upper L-shaped support legs and the lower L-shaped support legs is in a trapezoidal shape, the upper sides of the upper support frame and the lower support frame are provided with a plurality of tension adjusting sheets, the rear end of each tension adjusting sheet is provided with a plurality of through holes, the plurality of through holes are respectively connected with the upper support frame and the lower support frame through screws, the front end of each tension adjusting sheet is provided with a plurality of small tension sheets, the small tension sheets are in a plate spring shape, and gaps are left between the small tension, the lower side of the front end of the small tension sheet is provided with a wire passing ring, and the middle part of the upper L-shaped support leg is provided with a wire passing rod.

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