Rapier head for weft insertion of rapier loom

Abstract

The invention discloses a rapier loom weft insertion rapier head, and relates to the technical field of flexible rapier looms, the rapier loom weft insertion rapier head comprises a rack and a mounting rack arranged on the rack, and further comprises mounting plates arranged at the opposite ends of two rapier belts, and the ends, away from the rapier belts, of the two mounting plates are detachably connected with a weft receiving plate and a weft feeding plate respectively; the weft receiving plate and the weft feeding plate are respectively provided with a clamping mechanism used for clamping weft yarns, each clamping mechanism comprises a fixing hole formed in the middle of the weft receiving plate, and the inner wall of the side, close to the rapier belt, of each fixing hole is connected with a clamping plate through two guide sleeves which are symmetrically arranged. According to the rapier head for weft insertion of the rapier loom, through the arrangement of the clamping mechanism, it is guaranteed that weft yarn connection is convenient, meanwhile, rigid clamping and fixing of weft yarn are achieved, and compared with existing elastic clamping and fixing, firmness and stability of clamping and fixing of the weft yarn are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of flexible rapier loom technology, specifically to a rapier head for weft insertion in a rapier loom. Background Technology

[0002] Flexible rapier looms use a pair of flexible rapiers (made of thin steel strips or composite materials) as weft introducers to guide the weft yarn into the shed to complete the weaving process.

[0003] A pair of flexible rapiers consists of a weft-feeding rapier and a weft-receiving rapier. During operation, the weft-receiving rapier first uses its elastic pressure at the opening to fix the weft yarn. Then, driven by the rapier-transfer mechanism, the rapier holding the weft yarn is guided along a specific trajectory into the shed. When the weft-receiving rapier reaches the middle of the shed, the weft-feeding rapier also moves to that area. The weft-feeding rapier, also with its elastic pressure, extends into the weft-receiving rapier to hook the weft yarn, thus completing the transfer of the weft yarn from the weft-receiving rapier to the weft-feeding rapier. After receiving the weft yarn, the weft-feeding rapier continues to move under the action of the rapier-transfer mechanism, pulling the weft yarn out of the shed. The weft-feeding rapier utilizes the elastic pressure at the openings of the weft-feeding and weft-receiving rapiers... While the elastic pressure bar for fixing the weft yarn is simple to operate, it is prone to problems due to errors in weft yarn tension adjustment or wear of the elastic pressure bar after long-term use. This can lead to insufficient clamping force during the initial movement of the weft yarn at the elastic pressure bar, causing relative movement. This not only reduces the accuracy of weft yarn transmission but also causes lint or fuzz buildup at the interface of the elastic pressure bar due to friction during relative movement, further reducing the contact area between the elastic pressure bar and the weft yarn and consequently decreasing the clamping force on the weft yarn. Therefore, we propose a rapier head for weft insertion in rapier looms. Summary of the Invention

[0004] The purpose of this invention is to provide a rapier head for weft insertion in a rapier loom, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rapier head for weft insertion in a rapier loom, comprising a frame and a mounting frame disposed on the frame, wherein a threading plate is provided on one side of the mounting frame, the threading plate having a plurality of threading holes for threading warp yarns, and two winding reels are provided on the side of the mounting frame near the threading plate, the two winding reels being wound with rapier yarns, and further comprising mounting plates disposed at opposite ends of the two rapier yarns, wherein a weft insertion plate and a weft feeding plate are detachably connected to the ends of the two mounting plates away from the rapier yarns, and the weft insertion plate and the weft feeding plate are respectively provided with clamping mechanisms for clamping the weft yarns; The clamping mechanism includes a fixing hole located at the center of the weft-joining plate. The inner wall of the fixing hole near the rapier is connected to a clamping plate by two symmetrically arranged guide sleeves. The clamping plate has an inclined surface on the side away from the guide sleeves. The weft-joining plate has an inclined clamping hole located on the side of the clamping plate near the weft yarn. The fixing hole is provided with a first driving component for driving the clamping plate.

[0006] By adopting the above technical solution, the risk of fly hair or lint accumulation at the clamping and fixing point caused by friction during relative movement of weft yarns is reduced.

[0007] Preferably, the first driving assembly includes a driving rod rotatably connected to the side of the fixing hole near the winding reel, a driving plate fixedly connected to the side wall of the driving rod inside the fixing hole, a connecting plate fixedly connected to the side of the clamping plate near the driving rod, a U-shaped plate fixedly connected to the end of the connecting plate away from the clamping plate, the driving plate being located in the opening of the U-shaped plate, and the weft insertion plate having a rotating assembly for rotating the driving plate.

[0008] By adopting the above technical solution, it is easy to clamp and fix or release the weft yarn.

[0009] Preferably, the rotating assembly includes a rotating plate disposed on one side of the winding reel, one end of the rotating plate being connected to a drive rod, a rotating tube being fixedly connected to the end of the rotating plate away from the drive rod, a sliding rod being slidably connected to the end of the rotating tube near the threading plate, a rotating ball being rotatably connected to the end of the sliding rod away from the rotating plate, and a telescopic assembly for extending and retracting the rotating ball being provided in the rotating tube.

[0010] By adopting the above technical solution, it is easy to drive the drive rod to rotate.

[0011] Preferably, the diameter of the rotating ball is larger than the width of each through hole. When the weft splicing plate moves back and forth, the diameter of the rotating ball being larger than the width of each through hole can be used to maintain the stability of the tilt angle of the rotating tube.

[0012] By adopting the above technical solution, the stability of the tilt angle of the rotating tube is maintained.

[0013] Preferably, the telescopic assembly includes a telescopic plate slidably connected to the rotating tube, the end of the sliding rod away from the rotating ball is connected to the telescopic plate, a spring is provided on the side of the telescopic plate away from the sliding rod, and the end of the spring away from the telescopic plate is connected to the bottom wall of the rotating tube.

[0014] By adopting the above technical solution, rotation space is provided for the rotating tube to rotate at different angles.

[0015] Preferably, the weft splicing plate is provided with a toggle mechanism for toggle when splicing the weft yarn. The toggle mechanism includes a toggle rod rotatably connected to the side of the weft splicing plate near the rotating plate. The end of the toggle rod away from the weft splicing plate is fixedly connected to a toggle plate. The weft splicing plate is provided with a second drive assembly for driving the toggle plate.

[0016] By adopting the above technical solution, the risk of the weft yarn failing to fully enter the clamping hole due to its own flexibility is reduced.

[0017] Preferably, the second drive assembly includes an L-shaped plate slidably connected to the weft-joining plate near the actuating plate. A first rack is fixedly connected to the L-shaped plate near the drive rod. A first gear is fixedly connected to the side wall of the drive rod. The first gear and the first rack are meshed with each other. A second rack is fixedly connected to the end of the L-shaped plate away from the first rack. A second gear is fixedly connected to the side wall of the actuating rod. The second gear and the second rack are meshed with each other. The weft-joining plate is provided with a guide assembly for guiding the movement of the first rack and the second rack.

[0018] By adopting the above technical solution, it is easy to drive the actuating plate to rotate.

[0019] Preferably, the pitch circle diameter of the second gear is smaller than that of the first gear, and the actuating lever can obtain a larger rotation angle due to the difference in pitch circle diameters between the second and first gears.

[0020] By adopting the above technical solution, the lever can achieve a large-angle rotation.

[0021] Preferably, the guide assembly includes a strip plate fixedly connected to the side of the weft-joining plate near the actuating plate, and two T-shaped rods fixedly connected to the side of the strip plate near the L-shaped plate. The two T-shaped rods are located on both sides of the L-shaped plate and are slidably connected to guide plates respectively. The opposite ends of the two guide plates are connected to the second rack.

[0022] The above technical solution is used to provide guidance and reset for the movement of the first rack and the second rack.

[0023] Preferably, the weft feeding plate has a wire feeding plate on the side away from the winding reel, the wire feeding plate has a wire feeding hole, the wire feeding hole is arranged opposite to the clamping hole, and there is a wiring gap between the wire feeding plate and the weft feeding plate for the weft receiving plate to pass through and connect.

[0024] By adopting the above technical solution, it is easier for the weft yarn to enter the clamping holes on the weft splicing plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 1. The rapier head for weft insertion in a rapier loom of the present invention, through the setting of the clamping mechanism, under the cooperation of the driving component and the rotating component, ensures convenient handover of weft yarn while realizing rigid clamping and fixing of weft yarn. Compared with the existing elastic clamping and fixing, it can reduce the risk of fly hair or hair accumulation at the clamping and fixing point due to friction when the weft yarn moves relative to each other, thereby ensuring the firmness and stability of the weft yarn clamping and fixing, and further improving the accuracy of weft yarn feeding transmission.

[0026] 2. The rapier head for weft insertion in the rapier loom of the present invention, through the setting of the actuating mechanism, can apply a pushing force to the weft yarn as it enters the clamping hole under the cooperation of the second driving component and the guiding component, thereby reducing the risk that the weft yarn may not be fully inserted into the clamping hole due to its own flexibility, and thus ensuring the stability of the weft yarn connection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the weft feeding plate and the weft splicing plate of the present invention; Figure 3 This is a schematic diagram showing the positional relationship between the clamping mechanism, the first driving component, the rotating component, and the telescopic component of the present invention. Figure 4 This is a schematic diagram showing the positional relationship between the actuating mechanism and the weft insertion plate of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 5 Enlarged view at point B in the middle; Figure 7 This is a schematic diagram of the structure of the guide assembly of the present invention; Figure 8 This is a schematic diagram showing the weft insertion plate moving closer to the weft yarn. Figure 9 This is a schematic diagram showing the weft yarn retraction caused by the weft splicing plate.

[0028] In the diagram: 101, frame; 102, mounting bracket; 103, threading plate; 104, threading hole; 105, winding reel; 106, rapier tape; 2, mounting plate; 3, weft insertion plate; 4, weft feed plate; 601, fixing hole; 602, clamping plate; 603, inclined plane; 604, clamping hole; 605, guide sleeve; 701, drive rod; 702, drive plate; 703, connecting plate; 704, U-shaped plate; 801, rotating plate; 802. Rotating tube; 803. Sliding rod; 804. Rotating ball; 901. Telescopic plate; 902. Spring; 1001. Actuating rod; 1002. Actuating plate; 1101. L-shaped plate; 1102. First rack; 1103. First gear; 1104. Second rack; 1105. Second gear; 1201. Strip plate; 1202. T-shaped rod; 1203. Guide plate; 13. Wire feeding plate; 14. Wire feeding hole. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1 Please see Figures 1-9 The figure shows a rapier head for weft insertion of a rapier loom, including a frame 101 and a mounting frame 102 disposed on the frame 101. A threading plate 103 is provided on one side of the mounting frame 102. The threading plate 103 has a plurality of threading holes 104 for threading the warp yarn. Two winding reels 105 are provided on the side of the mounting frame 102 near the threading plate 103. The two winding reels 105 are wound with rapier yarn 106. The figure also includes mounting plates 2 disposed at opposite ends of the two rapier yarns 106. The ends of the two mounting plates 2 away from the rapier yarns 106 are respectively detachably connected to a weft receiving plate 3 and a weft feeding plate 4. The weft receiving plate 3 and the weft feeding plate 4 are respectively provided with clamping mechanisms for clamping the weft yarn. The clamping mechanism includes a fixing hole 601 located in the middle of the weft-joining plate 3. The inner wall of the fixing hole 601 near the rapier belt 106 is connected to a clamping plate 602 by two symmetrically arranged guide sleeves 605. The clamping plate 602 is provided with a rubber plate on the side near the weft yarn, and an inclined surface 603 is provided on the side of the clamping plate 602 away from the guide sleeves 605. The weft-joining plate 3 is provided with an inclined clamping hole 604 located on the side of the clamping plate 602 near the weft yarn. The fixing hole 601 is provided with a first driving component for driving the clamping plate 602. It should be noted that, through the clamping mechanism, the combined action of the drive and rotating components ensures convenient weft yarn handover while achieving rigid clamping and fixing of the weft yarn. Compared with the existing elastic clamping and fixing, this reduces the risk of fly or fuzz accumulation at the clamping and fixing point due to friction during relative movement of the weft yarn, thereby ensuring the firmness and stability of the weft yarn clamping and fixing, and further improving the accuracy of weft yarn feeding transmission.

[0031] It is worth noting that the working principle of the flexible rapier loom and the driving of the weft plate 3 and the feed plate 4 of the winding disc 105 and the rapier belt 106 are existing technologies. Their specific structure and working principle have been mastered by those in the art and will not be elaborated on here.

[0032] It should be noted that the clamping mechanisms on the weft insertion plate 3 and the weft feed plate 4 are the same, differing only in their working principles. The main difference is that when the weft insertion plate 3 moves closer to the weft feed plate 4, the clamping plate 602 moves away from the clamping hole 604; conversely, when the weft insertion plate 3 moves away from the weft feed plate 4, the clamping plate 602 moves closer to the clamping hole 604, thus clamping and fixing the weft yarn. Similarly, when the weft feed plate 4 moves closer to the weft insertion plate 3, the clamping plate 602 moves closer to the clamping hole 604, thus clamping and fixing the weft yarn. When the weft feed plate 4 moves away from the weft insertion plate 3, the clamping plate 602 moves away from the clamping hole 604, releasing the clamping and fixing of the weft yarn. (For different states of the clamping plate 602, please refer to...) Figure 8 and Figure 9 ).

[0033] Please see Figure 3 , Figure 4 and Figure 5 The first driving assembly shown in the figure includes a driving rod 701 rotatably connected to the side of the fixing hole 601 near the winding disc 105. A driving plate 702 is fixedly connected to the side wall of the driving rod 701 inside the fixing hole 601. A connecting plate 703 is fixedly connected to the side of the clamping plate 602 near the driving rod 701. A U-shaped plate 704 is fixedly connected to the end of the connecting plate 703 away from the clamping plate 602. The driving plate 702 is located in the opening of the U-shaped plate 704. The weft insertion plate 3 is provided with a rotating assembly for rotating the driving plate 702. It should be noted that the first drive component facilitates the movement of the clamping plate 602 closer to or further away from the weft yarn, thereby facilitating the clamping and fixing or releasing of the weft yarn.

[0034] Please see Figure 3 , Figure 4 and Figure 5The rotating assembly shown in the figure includes a rotating plate 801 disposed on one side of the winding reel 105. One end of the rotating plate 801 is connected to the drive rod 701. A rotating tube 802 is fixedly connected to the end of the rotating plate 801 away from the drive rod 701. A sliding rod 803 is slidably connected to the end of the rotating tube 802 near the threading plate 103. A rotating ball 804 is rotatably connected to the end of the sliding rod 803 away from the rotating plate 801. The rotating tube 802 is provided with a telescopic assembly for extending and retracting the rotating ball 804. It should be noted here that the rotating component is designed to facilitate the rotation of the drive rod 701.

[0035] Please see Figure 1 and Figure 3 The diameter of the rotating ball 804 in the figure is larger than the width of each through hole 104. When the weft splicing plate 3 moves back and forth, the diameter of the rotating ball 804 is larger than the width of each through hole 104 to maintain the stability of the tilt angle of the rotating tube 802. It should be noted here that by making the diameter of the rotating ball 804 larger than the width of each through hole 104, the stability of the tilt angle of the rotating tube 802 can be maintained when the weft plate 3 moves back and forth.

[0036] Please see Figure 3 The telescopic assembly shown in the figure includes a telescopic plate 901 slidably connected to the rotating tube 802, a sliding rod 803 with one end away from the rotating ball 804 connected to the telescopic plate 901, a spring 902 provided on the side of the telescopic plate 901 away from the sliding rod 803, and the end of the spring 902 away from the telescopic plate 901 connected to the bottom wall of the rotating tube 802. It should be noted here that the telescopic component is used to provide elastic compressive force to the rotating ball 804, thereby ensuring that the rotating ball 804 abuts against the surface of the threading plate 103, while also providing rotation space for the rotating tube 802 to rotate at different angles.

[0037] Working principle: When the weft yarn is being transferred, the weft yarn joint is first passed through the thread feeding hole 14 of the thread feeding plate 13 on one side of the weft feeding plate 4. Then the weft feeding plate 4 moves closer to the weft receiving plate 3. During the movement of the weft feeding plate 4, the rotating tube 802 will move synchronously. During the movement of the rotating tube 802, the elasticity of the telescopic component will be used to push the rotating ball 804 on one side of the rotating tube 802 to abut against the threading plate 103. Under the frictional action, the rotating tube 802 will rotate away from the weft receiving plate 3, thereby driving the drive plate 702 at one end of the drive rod 701 to rotate. During the rotation of the drive plate 702, the U-shaped plate 704 will be pushed, thereby causing the clamping plate 602 on one side of the connecting plate 703 to move closer to the weft yarn, thus achieving the clamping and fixing of the weft yarn. After the weft yarn is clamped and fixed, it can move closer to the weft receiving plate 3 under the pushing action of the rapier belt 106. As the weft feed plate 4 moves closer to the weft insertion plate 3, the rapier belt 106 pushes the weft insertion plate 3 to move synchronously closer to the weft feed plate 4. During this movement, when the rotating ball 804 on one side of the rotating tube 802 abuts against the threading plate 103, friction causes the rotating tube 802 to rotate away from the weft feed plate 4, thereby driving the drive plate 702 at one end of the drive rod 701 to rotate. During this rotation, the drive plate 702 pushes the U-shaped plate 704, causing the clamping plate 602 on one side of the connecting plate 703 to move away from the weft yarn (see reference). Figure 8 This facilitates the weft yarn entering the clamping hole 604 during the handover; When the weft feed plate 4 and the weft receiving plate 3 move to the middle position of the shed, the weft receiving plate 3 inserts into the gap between the weft feed plate 4 and the thread feed plate 13. At this time, under the guidance of the inclined chamfer at the front end of the weft receiving plate 3, the weft yarn enters the clamping hole 604 of the weft receiving plate 3. After the weft yarn enters the clamping hole 604 of the weft receiving plate 3, the weft feed plate 4 retracts. At this time, under the frictional action of the rotating ball 804 and the threading plate 103, the rotating tube 802 rotates closer to the weft receiving plate 3. Then, under the pushing action of the drive plate 702 on the side wall of the drive rod 701 and the U-shaped plate 704, the clamping plate 602 moves away from the weft yarn, thereby releasing the clamping and fixing of the weft yarn. After the weft feed plate 4 releases the clamping and fixing of the weft yarn, the weft receiving plate 3 drives the weft yarn to retract. During the retraction of the weft receiving plate 3, the clamping plate 602 moves closer to the weft yarn by the cooperation of the rotating component and the drive component (see reference). Figure 9 This achieves the clamping and fixing of the weft yarn. When the weft receiving plate 3 drives the weft yarn to retract into place, the weft yarn feeding transmission is completed. Therefore, by setting the clamping mechanism on the weft insertion plate 3 and the weft feeding plate 4, under the cooperation of the drive component and the rotating component, while ensuring convenient handover of the weft yarn, the rigid clamping and fixing of the weft yarn is achieved. Compared with the existing elastic clamping and fixing, the risk of fly hair or hair accumulation at the clamping and fixing point caused by friction during relative movement of the weft yarn can be reduced, thereby ensuring the firmness and stability of the weft yarn clamping and fixing, and further improving the accuracy of the weft feeding transmission.

[0038] Example 2 Please see Figure 4 and Figure 5 This embodiment further illustrates Example 1. The weft-connecting plate 3 in the figure is provided with a toggle mechanism for toggle when connecting the weft yarn. The toggle mechanism includes a toggle rod 1001 rotatably connected to the side of the weft-connecting plate 3 near the rotating plate 801. A toggle plate 1002 is fixedly connected to the end of the toggle rod 1001 away from the weft-connecting plate 3. The weft-connecting plate 3 is provided with a second drive assembly for driving the toggle plate 1002. It should be noted that: by setting up the actuating mechanism, under the cooperation of the second driving component and the guiding component, a pushing force can be applied to the weft yarn as it enters the clamping hole 604, thereby reducing the risk that the weft yarn may not be able to fully enter the clamping hole 604 due to its own flexibility, and thus ensuring the stability of the weft yarn handover.

[0039] Please see Figure 5 , Figure 6 and Figure 7 The second drive assembly shown in the figure includes an L-shaped plate 1101 slidably connected to the side of the weft insertion plate 3 near the actuating plate 1002. A first rack 1102 is fixedly connected to the side of the L-shaped plate 1101 near the drive rod 701. A first gear 1103 is fixedly connected to the side wall of the drive rod 701. The first gear 1103 and the first rack 1102 are meshed with each other. A second rack 1104 is fixedly connected to the end of the L-shaped plate 1101 away from the first rack 1102. A second gear 1105 is fixedly connected to the side wall of the actuating rod 1001. The second gear 1105 and the second rack 1104 are meshed with each other. The weft insertion plate 3 is provided with a guide assembly for guiding the movement of the first rack 1102 and the second rack 1104. It should be noted here that the setting of the second drive component makes it easy to use the change of the rotation angle of the rotating tube 802 to drive the actuating plate 1002 to rotate, thereby realizing the linkage of weft yarn actuation and clamping.

[0040] Please see Figure 5 , Figure 6 and Figure 7The pitch circle diameter of the second gear 1105 in the figure is smaller than that of the first gear 1103. The lever 1001 can obtain a larger rotation angle due to the difference between the pitch circle diameters of the second gear 1105 and the first gear 1103. It should be noted that: since the pitch circle diameter of the second gear 1105 is smaller than that of the first gear 1103, under the same module, the first gear 1103 has a larger pitch circle diameter (more teeth), while the second gear 1105 has a smaller pitch circle diameter (fewer teeth). This makes the "unit rack movement - number of rotations" of the second gear 1105 more sensitive than that of the first gear 1103, which in turn makes the second gear 1105 rotate at a larger angle. This further enables the actuating rod 1001 to achieve a large-angle rotation, thereby facilitating the improvement of the weft yarn's actuation effect into the clamping hole 604.

[0041] Please see Figure 5 , Figure 6 and Figure 7 The guide assembly shown in the figure includes a strip plate 1201 fixedly connected to the side of the weft splicing plate 3 near the actuating plate 1002. Two T-shaped rods 1202 are fixedly connected to the side of the strip plate 1201 near the L-shaped plate 1101. The two T-shaped rods 1202 are located on both sides of the L-shaped plate 1101 and are slidably connected to guide plates 1203 respectively. The opposite ends of the two guide plates 1203 are connected to the second rack 1104 or the first rack 1102. It should be noted here that the guide component is used to provide guidance and reset for the movement of the first rack 1102 and the second rack 1104.

[0042] Working principle: After the weft splicing plate 3 completes the transfer of the weft yarn, it will move away from the weft feeding plate 4 under the action of the rapier belt 106. At this time, the rotating tube 802, under the frictional action of the rotating ball 804 and the threading plate 103, tilts and rotates closer to the weft feeding plate 4. Then, the rotating plate 801 drives the first gear 1103 on the side wall of the drive rod 701 to rotate. Under the meshing transmission action of the first gear 1103 and the first rack 1102, the second rack 1104 at one end of the L-shaped plate 1101 moves. Then, under the meshing transmission action of the second rack 1104 and the second gear 1105, the actuating plate 1002 moves towards the weft yarn (see reference). Figure 9 Then, under the action of the actuating plate 1002, the weft yarn is pushed into the clamping hole 604 of the weft splicing plate 3, thereby reducing the risk that the weft yarn may not be fully inserted into the clamping hole 604 due to its own flexibility, thus ensuring the stability of the weft yarn splicing. After the weft receiving plate 3 completes the transfer of the weft yarn, it can drive the weft yarn to retract, thus completing the threading operation of the weft yarn. When the weft receiving plate 3 performs the transfer operation of the weft yarn again, as the weft receiving plate 3 moves closer to the weft feeding plate 4, the rotating tube 802 tilts away from the weft feeding plate 4 under the frictional action of the rotating ball 804 and the threading plate 103. At this time, under the action of the second drive component, one end of the actuating plate 1002 will be driven to rotate to the side away from the weft feeding plate 4, thereby avoiding interference with the transfer of the weft yarn.

[0043] Example 3 Please see Figure 2 This embodiment is a further explanation of other embodiments. In the figure, the weft feeding plate 4 is provided with a wire feeding plate 13 on the side away from the winding reel 105. The wire feeding plate 13 has a wire feeding hole 14. The wire feeding hole 14 is arranged opposite to the clamping hole 604. There is a wiring gap between the wire feeding plate 13 and the weft feeding plate 4 for the weft receiving plate 3 to pass through and connect the wires. It should be noted here that the setting of the wire feeding plate 13 and the wire feeding hole 14 on the wire feeding plate 13 facilitates the weft yarn splice to pass through the wire feeding hole 14. Therefore, when the weft splicing plate 3 passes through the gap between the wire feeding plate 13 and the weft feeding plate 4, it is convenient for the weft yarn to enter the clamping hole 604 on the weft splicing plate 3.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapier head for weft insertion on a rapier loom, comprising: The frame (101) and the mounting bracket (102) provided on the frame (101) are provided with a wire guide plate (103) on one side of the mounting bracket (102). The wire guide plate (103) has a plurality of wire guide holes (104) for wire guide. The mounting bracket (102) has two winding reels (105) on the side near the wire guide plate (103). The two winding reels (105) are wound with scimitar tape (106). Its characteristic is that it further includes: Mounting plates (2) are set at opposite ends of the two rapiers (106). The ends of the two mounting plates (2) away from the rapiers (106) are respectively detachably connected to a weft insertion plate (3) and a weft feed plate (4). The weft insertion plate (3) and the weft feed plate (4) are respectively provided with clamping mechanisms for clamping the weft yarn. The clamping mechanism includes a fixing hole (601) located in the middle of the weft insertion plate (3). The inner wall of the fixing hole (601) near the rapier (106) is connected to a clamping plate (602) by two symmetrically arranged guide sleeves (605). The clamping plate (602) has an inclined surface (603) on the side away from the guide sleeves (605). The weft insertion plate (3) has an inclined clamping hole (604) located on the side of the clamping plate (602) near the weft yarn. The fixing hole (601) is provided with a first driving component for driving the clamping plate (602).

2. The rapier head for weft insertion on a rapier loom according to claim 1, characterized in that: The first driving assembly includes a driving rod (701) rotatably connected to the side of the fixing hole (601) near the winding disc (105). The driving rod (701) is fixedly connected to a driving plate (702) on the side wall inside the fixing hole (601). The clamping plate (602) is fixedly connected to a connecting plate (703) on the side near the driving rod (701). The end of the connecting plate (703) away from the clamping plate (602) is fixedly connected to a U-shaped plate (704). The driving plate (702) is located in the opening of the U-shaped plate (704). The weft-jointing plate (3) is provided with a rotating assembly for rotating the driving plate (702).

3. The rapier head for weft insertion on a rapier loom according to claim 2, characterized in that: The rotating assembly includes a rotating plate (801) disposed on one side of the winding reel (105). One end of the rotating plate (801) is connected to a drive rod (701). A rotating tube (802) is fixedly connected to the end of the rotating plate (801) away from the drive rod (701). A sliding rod (803) is slidably connected to the end of the rotating tube (802) near the threading plate (103). A rotating ball (804) is rotatably connected to the end of the sliding rod (803) away from the rotating plate (801). The rotating tube (802) is provided with a telescopic assembly for extending and retracting the rotating ball (804).

4. The rapier head for weft insertion on a rapier loom according to claim 3, characterized in that: The diameter of the rotating ball (804) is greater than the width of each through hole (104). When the weft plate (3) moves back and forth, the diameter of the rotating ball (804) is greater than the width of each through hole (104) to maintain the stability of the tilt angle of the rotating tube (802).

5. A rapier head for weft insertion on a rapier loom according to claim 4, characterized in that: The telescopic assembly includes a telescopic plate (901) slidably connected to the rotating tube (802), and the end of the sliding rod (803) away from the rotating ball (804) is connected to the telescopic plate (901). A spring (902) is provided on the side of the telescopic plate (901) away from the sliding rod (803), and the end of the spring (902) away from the telescopic plate (901) is connected to the bottom wall of the rotating tube (802).

6. A rapier head for weft insertion on a rapier loom according to claim 5, characterized in that: The weft-connecting plate (3) is provided with a toggle mechanism for toggle when connecting the weft yarn. The toggle mechanism includes a toggle rod (1001) rotatably connected to the side of the weft-connecting plate (3) near the rotating plate (801). The end of the toggle rod (1001) away from the weft-connecting plate (3) is fixedly connected to a toggle plate (1002). The weft-connecting plate (3) is provided with a second drive assembly for driving the toggle plate (1002).

7. A rapier head for weft insertion on a rapier loom according to claim 6, characterized in that: The second drive assembly includes an L-shaped plate (1101) slidably connected to the side of the weft-joining plate (3) near the actuating plate (1002). A first rack (1102) is fixedly connected to the side of the L-shaped plate (1101) near the drive rod (701). A first gear (1103) is fixedly connected to the side wall of the drive rod (701). The first gear (1103) and the first rack (1102) are meshed with each other. A second rack (1104) is fixedly connected to the end of the L-shaped plate (1101) away from the first rack (1102). A second gear (1105) is fixedly connected to the side wall of the actuating rod (1001). The second gear (1105) and the second rack (1104) are meshed with each other. The weft-joining plate (3) is provided with a guide assembly for guiding the movement of the first rack (1102) and the second rack (1104).

8. A rapier head for weft insertion on a rapier loom according to claim 7, characterized in that: The pitch circle diameter of the second gear (1105) is smaller than that of the first gear (1103), and the actuating lever (1001) can obtain a larger rotation angle due to the difference in pitch circle diameters between the second gear (1105) and the first gear (1103).

9. A rapier head for weft insertion on a rapier loom according to claim 8, characterized in that: The guide assembly includes a strip plate (1201) fixedly connected to the side of the weft-joining plate (3) near the actuating plate (1002). Two T-shaped rods (1202) are fixedly connected to the side of the strip plate (1201) near the L-shaped plate (1101). The two T-shaped rods (1202) are located on both sides of the L-shaped plate (1101) and are slidably connected to guide plates (1203). The opposite ends of the two guide plates (1203) are connected to the second rack (1104).

10. A rapier head for weft insertion on a rapier loom according to claim 9, characterized in that: The weft feeder (4) has a wire feeder (13) on the side away from the winding reel (105). The wire feeder (13) has a wire feeder hole (14) and the wire feeder hole (14) is arranged opposite to the clamping hole (604). There is a wire feeder gap between the wire feeder (13) and the weft feeder (4) for the weft feeder (3) to pass through and connect.

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