A weft transfer mechanism for a flexible rapier loom

Abstract

The utility model discloses a weft yarn handover mechanism of flexible rapier loom relates to textile equipment technical field, and the utility model discloses a weft sword and the weft sword of receiving, and the one end of weft sword and the weft sword of receiving is provided with the handover mechanism, the handover mechanism includes passive roller and extruding roller, and passive roller and extruding roller set up several, and the one end of weft sword and the weft sword of receiving can detachably install a fixed plate no.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, specifically to a weft yarn transfer mechanism for a flexible rapier loom. Background Technology

[0002] CN206624985U discloses a rapier head, a weft feed rapier, a weft insertion rapier, and a weaving machine, relating to the field of textile equipment. The rapier head includes a rapier housing, a base plate, and an abutment. The base plate is detachably mounted on the rapier housing and is divided into a first part and a second part for sliding engagement with a track. The first part is closer to the sheathing mechanism of a flexible rapier loom than the second part. The abutment is located at one end of the first part and is also for sliding engagement with the track. The sum of the lengths of the first part and the abutment is greater than the length of the second part. The abutment is configured to be closer to another rapier head than the base plate. This rapier head significantly extends its service life, reduces warp and weft breakage, improves fabric quality, greatly reduces the external tension requirement for weft yarns, and effectively prevents fabric defects such as weft shrinkage. It can effectively reduce the risk of base plate breakage and large-area warp yarn breakage when rapier heads collide, reducing worker workload and saving costs. However, the weft feeding sword and weft receiving sword in this patent still have some defects: In this patent, the front end structure of the weft feeder and the weft receiver is simple during the weft yarn handover process, making it inconvenient to clamp the weft yarn. At the same time, it is not possible to clamp the weft yarn according to its thickness, which leads to a relatively serious degree of weft yarn rebound and slack. Utility Model Content

[0003] In order to solve the above problems, the purpose of this utility model is to provide a weft yarn handover mechanism for a flexible rapier loom.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a weft yarn handover mechanism for a flexible rapier loom, comprising a weft feeding rapier and a weft receiving rapier, wherein one end of the weft feeding rapier and the weft receiving rapier are provided with a handover mechanism; The transfer mechanism includes a passive roller and a pressing roller, and several passive rollers and pressing rollers are provided. One end of both the weft feeding sword and the weft receiving sword can be detachably installed with a No. 1 fixing plate. One side of the No. 1 fixing plate is provided with several hollow rods. A movable rod is slidably arranged inside the hollow rod. A spring is fixedly arranged inside the hollow rod. One end of the spring is fixedly connected to one end of the movable rod. The other end of the movable rod is fixedly provided with a No. 1 fixing frame. The passive roller is rotatably installed in the No. 1 fixing frame. Both the weft feeding sword and the weft receiving sword have a second fixing plate detachably installed at one end. An electric push rod is provided on one side of the second fixing plate. A second fixing frame is fixedly installed on the piston end of the electric push rod. The extrusion roller is rotatably installed inside the extrusion roller.

[0005] Preferably, anti-slip rubber sleeves are fixedly provided on the outer walls of both the passive roller and the extrusion roller.

[0006] Preferably, a plurality of anti-slip protrusions are fixedly provided on the outer wall of the anti-slip rubber sleeve.

[0007] Preferably, the inner wall of the hollow rod is provided with a plurality of slots, and a plurality of locking blocks are fixedly provided at one end of the movable rod, with the locking blocks slidably disposed at one end of the slots.

[0008] Preferably, both ends of the two No. 1 fixing plates and the two No. 2 fixing plates are threaded and rotatably mounted with assembly bolts.

[0009] Preferably, a battery is fitted at one end of each of the two second fixing plates.

[0010] Preferably, the transfer mechanism is provided with an adjustment component, which includes a connecting frame. Four connecting frames are provided, one of which is fixedly mounted on one end of several hollow rods, and another connecting frame is fixedly mounted on one end of an electric push rod. A rotating shaft is rotatably mounted on the middle of the two first fixing plates and the two second fixing plates. One end of the rotating shaft is fixedly connected to the middle of the connecting frame, and a worm gear is fixedly mounted on the other end of the rotating shaft. A worm is rotatably mounted on the other side of the two first fixing plates and the two second fixing plates, and the worm and the worm gear are meshed together.

[0011] Preferably, a knob is fixedly provided at one end of the worm gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, through the set transfer mechanism, the electric push rod in the transfer mechanism pushes the squeezing roller to move horizontally toward the passive roller, which can clamp the weft yarn. As the feeding sword and the receiving sword move toward each other, the squeezing roller of the feeding sword is reset at the center of the shuttle shed, releasing the clamping of the weft yarn. The squeezing roller of the receiving sword moves horizontally toward the passive roller, clamping the weft yarn after it is released. Thus, the transfer of the weft yarn can be realized. At the same time, yarns of different thicknesses can be clamped according to the thickness of the yarn, reducing the degree of weft yarn rebound and slack. 2. In this utility model, the passive roller and the squeezing roller can be rotated by the set adjustment component. When the passive roller and the squeezing roller rotate in opposite directions, rotating forty-five degrees will make the passive roller and the squeezing roller diagonally opposite each other, so as to clamp the weft yarn more stably. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the weft yarn transfer mechanism of a flexible rapier loom according to the present invention.

[0015] Figure 2 This is a schematic diagram of the handover mechanism and adjustment components of this utility model.

[0016] Figure 3 This is another structural schematic diagram of the handover mechanism and adjustment assembly of this utility model.

[0017] Figure 4 This is a cross-section of the hollow rod of this utility model and a schematic diagram of the connection structure between the movable rod and the hollow rod.

[0018] Figure 5 This is a schematic diagram of the passive roller, anti-slip rubber sleeve, and anti-slip protrusion of this utility model.

[0019] In the diagram: 1. Weft feed scissors; 2. Weft receiving scissors; 3. Transfer mechanism; 5. Adjustment assembly; 31. Passive roller; 32. Extrusion roller; 33. Anti-slip rubber sleeve; 34. Anti-slip protrusion; 35. Fixed plate No. 1; 36. Hollow rod; 37. Movable rod; 38. Fixed frame No. 1; 39. Spring; 4. Slot; 41. Locking block; 42. Fixed plate No. 2; 43. Electric push rod; 44. Fixed frame No. 2; 45. Assembly bolt; 46. Battery; 51. Connecting frame; 52. Rotating shaft; 53. Worm gear; 54. Worm; 55. Knob. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1-5As shown, this utility model provides a weft yarn exchange mechanism for a flexible rapier loom, including a weft feed rapier 1 and a weft receiving rapier 2. An exchange mechanism 3 is provided at one end of both the weft feed rapier 1 and the weft receiving rapier 2. By setting the exchange mechanism 3, yarns of different thicknesses can be clamped according to the yarn thickness (such as coarse weft yarn and special weft yarn), thereby reducing the degree of weft yarn rebound and slack. The transfer mechanism 3 includes a passive roller 31 and a squeezing roller 32. Several passive rollers 31 and squeezing rollers 32 are provided. By setting the passive rollers 31 and squeezing rollers 32, when the weft yarn enters the front end of the weft feeder 1, the weft yarn is located between the passive rollers 31 and the squeezing rollers 32. As the squeezing rollers 32 move horizontally toward the passive rollers 31, the weft yarn can be clamped. When the front end of the weft feeder 1 moves to the center of the shuttle shed, the front end of the receiving weft scissor 2 moves synchronously to the center of the shuttle shed, the squeezing roller 32 at the front end of the weft feeder 1 resets, and the weft yarn is released. The squeezing roller 32 at the front end of the receiving weft scissor 2 moves horizontally toward the passive rollers 31, clamping the weft yarn and realizing the transfer of the weft yarn. Anti-slip rubber sleeves 33 are fixedly provided on the outer walls of the passive rollers 31 and the squeezing rollers 32. Several anti-slip protrusions 34 are fixedly provided on the outer walls of the anti-slip rubber sleeves 33. By setting the anti-slip rubber sleeves 33 and the anti-slip protrusions 34, the stability of the clamped weft yarn can be improved and slippage can be avoided. Both the weft feeder 1 and the weft receiver 2 have a detachable fixing plate 35 installed at one end. One side of the fixing plate 35 has several hollow rods 36. A movable rod 37 is slidably installed inside each hollow rod 36. A spring 39 is fixedly installed inside each hollow rod 36, with one end of the spring 39 fixedly connected to one end of the movable rod 37. Several slots 4 are provided on the inner wall of the hollow rod 36. Several locking blocks 41 are fixedly installed at one end of the movable rod 37, and the locking blocks 41 are slidably installed at one end of the slots 4. The slots 4 and locking blocks... 41. The locking block 41 can slide horizontally along the inner wall of the slot 4, thereby enabling the movable rod 37 to slide horizontally within the hollow rod 36. The other end of the movable rod 37 is fixedly provided with a first fixing frame 38. The passive roller 31 is rotatably installed in the first fixing frame 38. When the extrusion roller 32 moves horizontally toward the side of the passive roller 31, the horizontal extrusion force of the extrusion roller 32 can extrude the passive roller 31 to move horizontally. The passive roller 31 moves the movable rod 37 into the hollow rod 36 through the first fixing frame 38. Both the feeding sword 1 and the receiving sword 2 have a second fixing plate 42 detachably installed at one end. An electric push rod 43 is provided on one side of the second fixing plate 42. A second fixing frame 44 is fixedly installed on the piston end of the electric push rod 43. The extrusion roller 32 is rotatably installed inside the extrusion roller 32. By starting the electric push rod 43, the piston end of the electric push rod 43 extends and retracts, which can move the extrusion roller 32 horizontally through the second fixing frame 44. A storage battery 46 is installed at one end of each of the two second fixing plates 42. By setting the storage battery 46, the storage battery 46 can provide power to the electric push rod 43.

[0022] Both ends of the two No. 1 fixing plates 35 and the two No. 2 fixing plates 42 are threaded and rotatably mounted with assembly bolts 45. By setting the assembly bolts 45, the two No. 1 fixing plates 35 and the two No. 2 fixing plates 42 can be fixed to the front ends of the weft feeding sword 1 and the weft receiving sword 2 respectively.

[0023] The transfer mechanism 3 is equipped with an adjustment component 5. By setting the adjustment component 5, the passive roller 31 and the squeezing roller 32 can be rotated, so that the passive roller 31 and the squeezing roller 32 are in a horizontal or diagonal state (the passive roller 31 and the squeezing roller 32 can be in a diagonal state by rotating them in opposite directions by 45 degrees). This can better clamp the weft yarn and improve the flexibility of the transfer mechanism 3. The adjustment component 5 includes a connecting frame 51. Four connecting frames 51 are provided. One connecting frame 51 is fixedly set at one end of several hollow rods 36, another connecting frame 51 is fixedly set at one end of the electric push rod 43, two No. 1 fixing plates 35 and two No. 2 fixing plates 35 are also provided. A rotating shaft 52 is rotatably mounted on the middle of each fixed plate 42. One end of the rotating shaft 52 is fixedly connected to the middle of the connecting frame 51. By driving the rotating shaft 52 to rotate, the rotating shaft 52 can cause the passive roller 31 (squeeze roller 32) to rotate through the connecting frame 51. A worm gear 53 is fixedly mounted on the other end of the rotating shaft 52. Worms 54 are rotatably mounted on the other side of the two first fixed plates 35 and the two second fixed plates 42. The worm gear 54 and the worm gear 53 are meshed and connected. A knob 55 is fixedly mounted on one end of the worm gear 54. By manually rotating the knob 55, the knob 55 can cause the worm gear 54 to rotate, and the worm gear 54 can cause the rotating shaft 52 to rotate through the worm gear 53.

[0024] Working principle: During the operation of the weft feeding scissors 1 and 2, the weft yarn is located between multiple passive rollers 31 and squeezing rollers 32 at the front end of the weft feeding scissors 1. By activating the electric push rod 43 at the front end of the weft feeding scissors 1, the piston end of the electric push rod 43 extends, and through the second fixing frame 44, the multiple squeezing rollers 32 move horizontally toward one side of the corresponding multiple passive rollers 31. Under the action of the horizontal squeezing force of the squeezing rollers 32 and the action of the spring 39, the passive rollers 31 move automatically, and the spring 39 contracts inside the hollow rod 36. The cooperation between the squeezing rollers 32 and the passive rollers 31 clamps the weft yarn. As the weft feed scissors 1 and 2 slide towards each other on the slide rail of the flexible rapier loom, when the front end of the weft feed scissors 1 moves to the center of the shuttle shed, the front end of the 2-weft-connecting scissors moves synchronously to the center of the shuttle shed. The electric push rod 43 at the front end of the weft feed scissors 1 retracts, and the squeezing roller 32 resets synchronously, releasing the weft yarn from clamping. At the same time, the electric push rod 43 at the front end of the 2-weft-connecting scissors extends, pushing the squeezing roller 32 to move horizontally toward the side of the passive roller 31, clamping the weft yarn after it has been released. Subsequently, the 2-weft-connecting scissors move in the opposite direction, pulling the weft yarn to move synchronously, completing the transfer of the weft yarn. Meanwhile, by rotating the four knobs 55, the four worm gears 54 can be rotated. The worm gears 54 rotate the shaft 52 through the worm wheel 53. The shaft 52 rotates the passive roller 31 and the squeezing roller 32 through the connecting frame 51. The rotation is 45 degrees. The passive roller 31 and the squeezing roller 32 rotate in opposite directions, so that the passive roller 31 and the squeezing roller 32 are in a diagonal state, so as to clamp the weft yarn more stably.

[0025] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A weft yarn handover mechanism for a flexible rapier loom, comprising a weft feed rapier (1) and a weft receiving rapier (2), characterized in that: Both the weft-feeding sword (1) and the weft-receiving sword (2) are provided with a handover mechanism (3) at one end. The transfer mechanism (3) includes a passive roller (31) and a pressing roller (32), and several passive rollers (31) and pressing rollers (32) are provided; A first fixing plate (35) can be detachably installed at one end of both the weft feeding sword (1) and the weft receiving sword (2). A number of hollow rods (36) are provided on one side of the first fixing plate (35). A movable rod (37) is slidably arranged inside the hollow rod (36). A spring (39) is fixedly arranged inside the hollow rod (36). One end of the spring (39) is fixedly connected to one end of the movable rod (37). A first fixing frame (38) is fixedly arranged at the other end of the movable rod (37). The passive roller (31) is rotatably installed in the first fixing frame (38). Both the weft feeding sword (1) and the weft receiving sword (2) have a second fixing plate (42) detachably installed at one end. An electric push rod (43) is provided on one side of the second fixing plate (42). A second fixing frame (44) is fixedly installed on the piston end of the electric push rod (43). The extrusion roller (32) is rotatably installed inside the extrusion roller (32).

2. The weft yarn interleaving mechanism of a flexible rapier loom as described in claim 1, characterized in that, Anti-slip rubber sleeves (33) are fixedly provided on the outer walls of both the passive roller (31) and the extrusion roller (32).

3. The weft yarn handover mechanism of a flexible rapier loom as described in claim 2, characterized in that, Several anti-slip protrusions (34) are fixedly provided on the outer wall of the anti-slip rubber sleeve (33).

4. The weft yarn handover mechanism of a flexible rapier loom as described in claim 1, characterized in that, The hollow rod (36) has several slots (4) on its inner wall, and several blocks (41) are fixedly provided at one end of the movable rod (37). The blocks (41) are slidably disposed at one end of the slots (4).

5. The weft yarn interleaving mechanism of a flexible rapier loom as described in claim 1, characterized in that, Both ends of the two No. 1 fixing plates (35) and the two No. 2 fixing plates (42) are threaded and rotatably mounted with assembly bolts (45).

6. The weft yarn handover mechanism of a flexible rapier loom as described in claim 1, characterized in that, A battery (46) is fitted at one end of each of the two No. 2 fixing plates (42).

7. The weft yarn interleaving mechanism of a flexible rapier loom as described in claim 1, characterized in that, The handover mechanism (3) is provided with an adjustment component (5), which includes a connecting frame (51). Four connecting frames (51) are provided. One of the connecting frames (51) is fixedly installed at one end of several hollow rods (36), and another connecting frame (51) is fixedly installed at one end of an electric push rod (43). A rotating shaft (52) is rotatably installed in the middle of the two first fixing plates (35) and the two second fixing plates (42). One end of the rotating shaft (52) is fixedly connected to the middle of the connecting frame (51), and a worm gear (53) is fixedly installed at the other end of the rotating shaft (52). A worm (54) is rotatably installed on the other side of the two first fixing plates (35) and the two second fixing plates (42). The worm (54) and the worm gear (53) are meshed together.

8. The weft yarn interleaving mechanism of a flexible rapier loom as described in claim 7, characterized in that, A knob (55) is fixedly installed at one end of the worm gear (54).

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