A thread clamping push rod and a weft insertion sword

Abstract

This utility model relates to the field of loom technology and discloses a yarn clamping push rod and a weft insertion rapier, including a support base. An installation cylinder is fixedly installed on the top of the support base, and a cylinder is fixedly installed on the inner wall of the installation cylinder. A push plate is fixedly assembled on the telescopic end of the cylinder. Through a two-way snap-fit ​​engagement driven by a threaded rod, the insertion and removal actions of the first and second pins are synchronously controlled by the forward and reverse threads. With the help of an electric wrench, the connection or disassembly of the weft insertion rapier body and the push plate can be completed quickly, thereby improving maintenance efficiency. At the same time, the four second slots arranged in a circular array are tightly engaged with the first and second pins, and the positioning of the weft insertion rapier body after installation is ensured by the use of sliding groove one and sliding groove two. This avoids weft yarn handover errors caused by loose connections or deviations, thereby improving the stability and reliability of weft yarn transmission and the quality of fabric weaving.

Description

Technical Field

[0001] This utility model relates to the field of loom technology, specifically to a yarn clamping push rod and a weft insertion rapier. Background Technology

[0002] In the modern textile industry, rapier looms have become the mainstream equipment due to their efficient and stable weft insertion performance. However, their weft insertion rapiers and yarn clamping push rod systems still face multiple technical bottlenecks.

[0003] Existing weft insertion rapiers and push rods are mostly fixed by bolts or welding, which is not only time-consuming and labor-intensive to disassemble and assemble, affecting equipment maintenance efficiency, but also may cause wear and tear due to long-term use, resulting in a decrease in weft yarn splicing accuracy and an increase in fabric defect rate, which will affect the production efficiency of the equipment. Therefore, we have introduced a yarn clamping push rod and a weft insertion rapier. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a yarn clamping push rod and a weft insertion rapier, which have the advantages of easy disassembly and maintenance and automatic air blowing to clean flying lint and dust, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a yarn clamping push rod and a weft insertion rapier, including a support base, an installation cylinder fixedly installed on the top of the support base, a cylinder fixedly installed on the inner wall of the installation cylinder, a push plate fixedly assembled on the telescopic end of the cylinder, a first slot, a first sliding groove and a second sliding groove respectively opened on the outer wall of the push plate, a weft insertion rapier body provided on the outer wall of the push plate, a second slot opened on the outer wall of the weft insertion rapier body, a yarn clamping device body fixedly assembled on the outer wall of the weft insertion rapier body, a connecting component provided in the inner cavity of the push plate, and a cleaning component provided on the top of the installation cylinder;

[0006] The connecting assembly includes a threaded rod, a first slider is threadedly connected to the outer wall of the threaded rod, a first pin is fixedly mounted on the top of the first slider, one end of a connecting rod is rotatably connected to the outer wall of the first slider, a turntable is rotatably connected to the other end of the connecting rod, one end of a connecting rod is rotatably connected to the bottom of the turntable, a second slider is rotatably connected to the other end of the connecting rod, and a second pin is fixedly mounted on the top of the second slider.

[0007] As a preferred technical solution of this utility model: the cleaning component includes a corrugated telescopic tube, a piston plate is fixedly installed on the inner wall of the corrugated telescopic tube, an air pipe one and an air pipe two are respectively provided on the top of the corrugated telescopic tube, an air chamber box is fixedly installed on the outer wall of the push plate, an air nozzle is fixedly installed at the bottom of the air chamber box, a cross base is fixedly installed on the inner wall of the air pipe two, and a spring and a ball are respectively provided in the inner cavity of the air pipe two.

[0008] As a preferred technical solution of this utility model: the second air pipe is connected to the air inlet of the corrugated telescopic tube, one end of the air chamber box is connected to the air outlet of the corrugated telescopic tube, and the other end is connected to the air inlet of the air chamber box. There are several air nozzles, and several of them are located on the top of the yarn clamping device body. One end of the spring is connected to the cross base, and the other end is connected to the bottom of the sphere. The diameter of the sphere is larger than the diameter of the top opening of the second air pipe.

[0009] As a preferred technical solution of this utility model: one end of the threaded rod is constructed with a positive thread and the other end is constructed with a reverse thread. The first slider, the first pin and the connecting rod are regarded as a set of movable components, and there are two such movable components, which are respectively arranged on both sides of the outer wall of the turntable. The outer walls of the two first sliders are slidably fitted to the inner wall of the second slide groove.

[0010] As a preferred technical solution of this utility model: the connecting rod, the second slider, and the second pin are regarded as a set of movable components, and there are two such movable components, which are respectively arranged opposite to each other with the turntable as the center. The outer walls of the two second sliders are slidably fitted to the inner wall of the first slide groove.

[0011] As a preferred technical solution of this utility model: there are four second slots, and the four second slots are arranged in a circular array at the end of the weft insertion sword head body. The inner walls of the four second slots are adapted to the outer walls of the first pin and the second pin, respectively. The outer wall of the weft insertion sword head body is adapted to the inner wall of the first slot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The yarn clamping push rod and weft insertion rapier are connected by a two-way snap-fit ​​mechanism driven by a threaded rod. The insertion and removal of the first and second pins are controlled synchronously by the forward and reverse threads. With the help of an electric wrench, the connection or disassembly of the weft insertion rapier body and the push plate can be completed quickly, thereby improving maintenance efficiency. At the same time, the tight fit between the four circularly arrayed second slots and the first and second pins, along with the sliding grooves one and two, ensures the positioning of the weft insertion rapier body after installation. This avoids weft yarn handover errors caused by loose connections or deviations, thereby improving the stability and reliability of weft yarn transmission and the quality of fabric weaving.

[0014] 2. The yarn clamping push rod and weft insertion rapier achieve self-driving dust removal during the movement of the weft insertion rapier body through the linkage of the corrugated telescopic tube, piston plate and air nozzle. When the weft insertion rapier body reciprocates, the expansion and contraction of the corrugated telescopic tube, the ball, spring and piston plate complete the air intake and suction cycle, and the air nozzle blows through the surface and gaps of the yarn clamping device body, thereby effectively avoiding clamping jams caused by flying lint and dust, and thus effectively reducing fabric defects such as weft breakage and missing weft caused by yarn clamping failure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the push plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the weft insertion scissor head structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the connecting component structure of this utility model;

[0020] Figure 6 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Support base; 2. Mounting cylinder; 3. Cylinder; 4. Push plate; 5. First slot; 6. First slide rail; 7. Weft insertion rapier body; 8. Second slot; 9. Yarn clamp body; 10. Connecting assembly; 11. Cleaning assembly; 12. Second slide rail;

[0022] 101. Threaded rod; 102. First slider; 103. First pin; 104. Connecting rod one; 105. Turntable; 106. Connecting rod two; 107. Second slider; 108. Second pin;

[0023] 111. Corrugated telescopic tube; 112. Piston plate; 113. Air tube one; 114. Air chamber box; 115. Air nozzle; 116. Air tube two; 117. Cross base; 118. Spring; 119. Ball. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 - Figure 6 A yarn clamping push rod and a weft-joining rapier include a support base 1, an installation cylinder 2 fixedly installed on the top of the support base 1, a cylinder 3 fixedly installed on the inner wall of the installation cylinder 2, a push plate 4 fixedly assembled on the telescopic end of the cylinder 3, a first slot 5, a first sliding groove 6 and a second sliding groove 12 respectively opened on the outer wall of the push plate 4, a weft-joining rapier body 7 provided on the outer wall of the push plate 4, a second slot 8 opened on the outer wall of the weft-joining rapier body 7, a yarn clamping device body 9 fixedly assembled on the outer wall of the weft-joining rapier body 7, a connecting component 10 provided in the inner cavity of the push plate 4, and a cleaning component 11 provided on the top of the installation cylinder 2.

[0026] The connecting assembly 10 includes a threaded rod 101, a first slider 102 is threadedly connected to the outer wall of the threaded rod 101, a first pin 103 is fixedly mounted on the top of the first slider 102, one end of a connecting rod 104 is rotatably connected to the outer wall of the first slider 102, a turntable 105 is rotatably connected to the other end of the connecting rod 104, one end of a connecting rod 106 is rotatably connected to the bottom of the turntable 105, a second slider 107 is rotatably connected to the other end of the connecting rod 106, and a second pin 108 is fixedly mounted on the top of the second slider 107.

[0027] In the above structure, by setting the connecting component 10, when maintenance is required, the weft insertion head body 7 and the yarn clamping body 9 can be maintained by using an external electric wrench to rotate the threaded rod 101. This causes the second slider 107 to slide with the first slider 102, which in turn causes the first pin 103 and the second pin 108 to disengage from the second slot 8. This disengages the push plate 4 from the weft insertion head body 7, completing the disassembly and facilitating the maintenance and use of the weft insertion head body 7 and the yarn clamping body 9.

[0028] In a preferred embodiment: the cleaning component 11 includes a corrugated telescopic tube 111, a piston plate 112 is fixedly installed on the inner wall of the corrugated telescopic tube 111, an air pipe 113 and an air pipe 116 are respectively provided on the top of the corrugated telescopic tube 111, an air chamber box 114 is fixedly installed on the outer wall of the push plate 4, an air nozzle 115 is fixedly assembled on the bottom of the air chamber box 114, a cross base 117 is fixedly installed on the inner wall of the air pipe 116, and a spring 118 and a ball 119 are respectively provided in the inner cavity of the air pipe 116.

[0029] In a preferred embodiment: the second air pipe 116 is connected to the air inlet of the corrugated telescopic pipe 111, one end of the air chamber box 114 is connected to the air outlet of the corrugated telescopic pipe 111, and the other end is connected to the air inlet of the air chamber box 114. There are several air nozzles 115, and several of them are located on the top of the yarn clamping device body 9. One end of the spring 118 is connected to the cross base 117, and the other end is connected to the bottom of the ball 119. The diameter of the ball 119 is larger than the diameter of the top opening of the second air pipe 116.

[0030] In the above structure, by setting the corrugated telescopic tube 111, one end of the corrugated telescopic tube 111 extends as it moves with the weft insertion head body 7. This extension causes the piston plate 112 fixedly installed on the inner wall of the corrugated telescopic tube 111 to draw air from its inner cavity. The air pressure in the inner cavity of the corrugated telescopic tube 111 then draws the sphere 119 inside the second air pipe 116 downwards, causing the sphere 119 to disengage from the opening at the top of the second air pipe 116. At this time, the second air pipe 116 compresses the spring 118, opening the opening at the top of the second air pipe 116, allowing external air to enter through the second air pipe 116. The inner cavity of the corrugated telescopic tube 111, and then when the corrugated telescopic tube 111 returns to the weft head body 7 during the return motion, its ball 119 is reset to the top opening of the second air pipe 116 under the rebound of the spring 118, thereby closing the top of the second air pipe 116, so that the gas in the inner cavity of the corrugated telescopic tube 111 is pushed and pressurized by the piston plate 112 and transported to the inner cavity of the air chamber box 114 through the first air pipe 113, so that the gas in the inner cavity of the air chamber box 114 is blown towards the yarn clamping body 9 through the air nozzle 115, so that the flying lint and dust remaining inside the yarn clamping body 9 will be blown away, so that the yarn clamping body 9 will not have a jamming phenomenon when clamping yarn.

[0031] In a preferred embodiment: one end of the threaded rod 101 is constructed with a positive thread and the other end is constructed with a reverse thread. The first slider 102, the first pin 103 and the connecting rod 104 are regarded as a set of movable components, and there are two such movable components, which are respectively arranged on both sides of the outer wall of the turntable 105. The outer walls of the two first sliders 102 are slidably fitted against the inner wall of the second slide groove 12.

[0032] In the above structure, by setting the first slider 102, the first pin 103 and the connecting rod 104, the external electric wrench rotates the threaded rod 101, causing the threaded rod 101 to drive the forward and reverse threads at both ends to rotate. As the two first sliders 102 rotate through the forward and reverse threads on the outer wall of the threaded rod 101, they slide in opposite directions along the inner wall of the second slide groove 12. As the two first sliders 102 slide, they drive the two connecting rods 104 and the first pin 103 to slide in opposite directions. At the same time, the two sliding connecting rods 104 pull the outer sides of the turntable 105, causing the turntable 105 to rotate.

[0033] In a preferred embodiment: the connecting rod 106, the second slider 107, and the second pin 108 are regarded as a set of movable components, and there are two such movable components, which are respectively arranged opposite to each other with the turntable 105 as the center. The outer walls of the two second sliders 107 are slidably fitted to the inner wall of the first slide groove 6.

[0034] In the above structure, by setting the connecting rod 106, the second slider 107, and the second pin 108, the two second sliders 107, under the rotation of the turntable 105, will cause one end of the two opposing connecting rods 106 to push the two second sliders 107, so that the two second sliders 107 slide along the inner wall of the first slide groove 6, and the second pin 108 will also move with the sliding of the two second sliders 107.

[0035] In a preferred embodiment: there are four second slots 8, and the four second slots 8 are arranged in a circular array at the end of the weft-connecting sword head body 7. The inner walls of the four second slots 8 are adapted to the outer walls of the first pin 103 and the second pin 108, respectively. The outer wall of the weft-connecting sword head body 7 is adapted to the inner wall of the first slot 5.

[0036] In the above structure, by setting the second slot 8, the first pin 103 and the second pin 108, the first pin 103 and the second pin 108 corresponding to the four second slots 8 will disengage from the inner wall of the four second slots 8. Then, by sliding the weft insertion head body 7, the weft insertion head body 7 will slide along the inner wall of the first slot 5, so that the weft insertion head body 7 will disengage from the push plate 4, thereby completing the fixed disengagement after disassembly.

[0037] Working principle: First, by starting cylinder 3, its telescopic end pushes push plate 4 and weft receiving head body 7 forward rapidly along the guide rail, causing yarn clamping body 9 to complete the yarn clamping action during the movement, transferring the weft yarn from the weft feeding head to the weft receiving head. At this time, when the weft receiving head body 7 moves forward, the corrugated telescopic tube 111 is stretched, causing piston plate 112 to be stretched by the corrugated telescopic tube 111, and negative pressure is generated in the inner cavity, causing the suction ball 119 to move downward, which in turn drives spring 118 to compress. At this time, air pipe two The top of 116 opens, thereby delivering external air to the inner cavity of the corrugated telescopic tube 111. When the weft insertion head body 7 returns, the corrugated telescopic tube 111 contracts, driving the piston plate 112 to compress the air in the inner cavity. At this time, the ball 119 uses the compression and rebound of the spring 118 to return to the top opening of the closed air pipe 116, so that the compressed air enters the inner cavity of the air chamber box 114 through the air pipe 113, and the gas is sprayed out through several air nozzles 115 to blow away the flying lint and dust on the surface and inside gaps of the yarn clamping device body 9.

[0038] Secondly, when maintaining the weft insertion head body 7 and the yarn clamping body 9, the threaded rod 101 is rotated in the reverse direction using an external electric wrench. This causes the two first sliders 102 to slide in the opposite direction along the inner wall of the second groove 12 under the rotation of the threads in both the forward and reverse directions. This, in turn, causes the first pin 103 to exit the inner cavity of the second slot 8. As the two first sliders 102 slide, the two connecting rods 104 pull on both sides of the turntable 105, causing the turntable 105 to rotate synchronously in the opposite direction. This, in turn, causes the rotating turntable 105 to push the two connecting rods 106 relative to each other. The two second sliders 107 are moved and slid along the inner wall of the first groove 6, so that the two oppositely arranged second pins 108 will be disengaged from the inner cavity of the second slot 8 as the two second sliders 107 slide, thereby unlocking the connection between the weft insertion head body 7 and the push plate 4. Then, by sliding the weft insertion head body 7, the weft insertion head body 7 will slide out along the inner wall of the first slot 5, thereby completing the connection and disassembly between the weft insertion head body 7 and the yarn clamping body 9 and the push plate 4, so as to facilitate subsequent maintenance and replacement of the weft insertion head body 7 and the yarn clamping body 9.

[0039] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thread gripper push rod and weft thread insertion sword comprising a support base (1), characterised in that: The top of the support base (1) is fixedly installed with an installation cylinder (2), the inner wall of the installation cylinder (2) is fixedly installed with a cylinder (3), the telescopic end of the cylinder (3) is fixedly equipped with a push plate (4), the outer wall of the push plate (4) is respectively provided with a first slot (5), a first slide groove (6) and a second slide groove (12), the outer wall of the push plate (4) is provided with a weft insertion dagger body (7), the outer wall of the weft insertion dagger body (7) is provided with a second slot (8), the outer wall of the weft insertion dagger body (7) is fixedly equipped with a yarn clamping device body (9), the inner cavity of the push plate (4) is provided with a connecting component (10), and the top of the installation cylinder (2) is provided with a cleaning component (11). The connecting assembly (10) includes a threaded rod (101), the outer wall of which is threadedly connected to a first slider (102), the top of which is fixedly fitted with a first pin (103), the outer wall of which is rotatably connected to one end of a connecting rod (104), the other end of which is rotatably connected to a turntable (105), the bottom of which is rotatably connected to one end of a connecting rod (106), the other end of which is rotatably connected to a second slider (107), and the top of which is fixedly fitted with a second pin (108).

2. The yarn clamping pusher and weft insertion rapier according to claim 1, characterized in that: The cleaning component (11) includes a corrugated telescopic tube (111), a piston plate (112) is fixedly installed on the inner wall of the corrugated telescopic tube (111), an air pipe one (113) and an air pipe two (116) are respectively provided on the top of the corrugated telescopic tube (111), an air chamber box (114) is fixedly installed on the outer wall of the push plate (4), an air nozzle (115) is fixedly installed on the bottom of the air chamber box (114), a cross base (117) is fixedly installed on the inner wall of the air pipe two (116), and a spring (118) and a ball (119) are respectively provided in the inner cavity of the air pipe two (116).

3. The yarn clamping pusher and weft insertion rapier according to claim 2, characterized in that: The second air pipe (116) is connected to the air inlet of the corrugated telescopic pipe (111). One end of the air chamber box (114) is connected to the air outlet of the corrugated telescopic pipe (111), and the other end is connected to the air inlet of the air chamber box (114). There are several air nozzles (115), and several of them are located on the top of the yarn clamping device body (9). One end of the spring (118) is connected to the cross base (117), and the other end is connected to the bottom of the sphere (119). The diameter of the sphere (119) is larger than the top opening diameter of the second air pipe (116).

4. The yarn clamping pusher and weft insertion rapier according to claim 1, characterized in that: One end of the threaded rod (101) is constructed with a forward thread and the other end is constructed with a reverse thread. The first slider (102), the first pin (103) and the connecting rod (104) are considered as a set of movable components, and there are two such movable components, which are respectively set on both sides of the outer wall of the turntable (105). The outer walls of the two first sliders (102) are in contact with the inner wall of the second slide groove (12) and slide together.

5. The yarn clamping pusher and weft insertion rapier according to claim 1, characterized in that: The connecting rod (106), the second slider (107), and the second pin (108) are considered as a set of movable components, and there are two such movable components. They are respectively arranged opposite each other with the turntable (105) as the center. The outer walls of the two second sliders (107) are in contact with the inner wall of the first slide groove (6) and are slidably arranged.

6. The yarn clamping pusher and weft insertion rapier according to claim 1, characterized in that: There are four second slots (8), and the four second slots (8) are arranged in a circular array at the end of the weft insertion head body (7). The inner walls of the four second slots (8) are adapted to the outer walls of the first pin (103) and the second pin (108), respectively. The outer wall of the weft insertion head body (7) is adapted to the inner wall of the first slot (5).

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