Beating-up device for air jet loom

Abstract

The beating-up device comprises a support, a swing assembly, a sley, a plurality of reed wires, an abutting plate and an installation part, the sley is rotationally connected to the support, the reed wires are distributed in the length direction of the sley, one end of each reed wire is clamped to the sley, and the other end of each reed wire is clamped to the abutting plate. The abutting plate is clamped to the other end of the reed wire, the installation piece is used for installing the abutting plate to the batten, and the swing assembly is used for driving the batten to swing and beat up. The device has the effect that the maintenance cost of the device is reduced after the reed wire is abraded.

Description

Technical Field

[0001] The present application relates to the field of air-jet looms, and in particular to a beating-up device for air-jet looms. Background Art

[0002] The air jet loom is a shuttleless loom that uses a jet of air to pull the weft yarn through the shed. The working principle is to use air as the weft insertion medium, and the compressed air jet generates friction traction on the weft yarn to pull the weft yarn through the shed. The purpose of weft insertion is achieved by the jet generated by the air jet. The beating mechanism is a component of the air jet loom. Its function is to push the weft yarn introduced into the shed to the cloth mouth and tightly interweave it with the warp yarn.

[0003] Currently, a Chinese utility model patent, publication number CN212955565U, discloses a beating-up device for an air-jet loom. The device comprises a horizontal rocking shaft, a plurality of sleys mounted on the rocking shaft, and a reed. The sleys are connected to a wooden slide rail on the side away from the rocking shaft. The slide rail extends along the axis of the rocking shaft and has a concave cross-section with the concave surface facing upward. A wooden limit rod is slidably mounted on each side of the long side of the slide rail. The limit rod extends along the long side of the slide rail and slides along the height of the slide rail. One side of the reed passes through the slide rail, slides along the slide rail, and is engaged with the slide rail. The limit rod is plugged into the reed. This utility model improves the stability of the reed and sley.

[0004] The steel reed repeatedly beats the weft yarn toward the weaving mouth, and the reed blades are in constant friction with the warp and weft yarns. Especially when weaving high-density fabrics or coarse fibers, the wear is aggravated. The worn reed blades will scratch the warp yarns, causing reed marks on the cloth surface, increased hairiness, and even warp breakage. Even if only one reed blade has a wear problem, the entire steel reed needs to be replaced, and the maintenance cost of the equipment is high. Summary of the Invention

[0005] In order to reduce the maintenance cost of equipment after the reed blades are worn, the present application provides a beating device for an air-jet loom.

[0006] The present application provides a beating-up device for an air-jet loom, which adopts the following technical solution: A beating-up device for an air-jet loom comprises a bracket, a swinging assembly, a sley, a plurality of reed blades, an abutment plate, and a mounting member. The sley is rotatably connected to the bracket, and the plurality of reed blades are distributed along the length direction of the sley. One end of the reed blade is clamped onto the sley, and the abutment plate is clamped onto the other end of the reed blade. The mounting member is used to mount the abutment plate onto the sley, and the swinging assembly is used to drive the sley to swing and beat-up.

[0007] By adopting the above technical solution, the swinging assembly is used to drive the sley to swing, and the swinging of the sley drives the reed to move, and the reed moves close to or away from the weft to perform the beating operation. The reed will wear during the beating process. When the reed is worn, the staff can remove the abutment plate from the sley by using the mounting piece. The end of the reed that was originally clamped to the abutment plate and the sley at both ends is in a free state. The damaged reed can be taken out separately and replaced. One end of the new reed is clamped to the sley, and then the abutment plate is installed through the mounting piece, so that the two ends of the new reed are clamped to the sley and the abutment plate respectively. When the reed is damaged, only the corresponding damaged reed needs to be replaced, which greatly reduces the equipment maintenance cost.

[0008] Optionally, the mounting member includes two abutment rods and two nuts, the length direction of the abutment rods is parallel to the distribution direction from the sley to the abutment plate, one end of the abutment rod is arranged on the sley, and the other end of the abutment rod is provided with a threaded rod, the diameter of the threaded rod is smaller than the diameter of the abutment rod, the abutment plate passes through the threaded rod, and the nut is used to be threadedly connected to the threaded rod and abut the abutment plate against the abutment rod.

[0009] By adopting the above technical solution, when the reed needs to be replaced, the staff can first unscrew the nut from the threaded rod, and then remove the abutment plate. At this time, the reed is separated from the abutment plate, and one end of the reed is in a free state. The staff can smoothly replace the reed that needs to be replaced. After the reed is replaced, the staff places the abutment plate on the abutment rod, and makes the threaded rod pass through the abutment rod. Finally, the nut cooperates with the threaded rod to make the abutment plate abut on the abutment rod. At this time, the two ends of the reed are respectively clamped on the reed seat and the abutment plate to complete the replacement of the reed. The mounting structure is simple and convenient for the staff to operate.

[0010] Optionally, a contact belt is provided on the outer periphery of the reed blade, and a rotating part for driving the contact belt to rotate is provided on the reed blade, and the rotating part includes a contact gear and a mating gear, and a plurality of latch teeth are provided on the inner side wall of the contact belt, and the plurality of latch teeth are distributed along the length direction of the contact belt, and the contact gear is located inside the reed blade, and the contact gear is rotatably connected to the reed blade, and the latch teeth are engaged with the contact gear, and the mating gear is coaxially arranged with the contact gear, and the mating gear is located outside the reed blade, and the mating gear is arranged on the axis of the contact gear, and a driving component for driving the mating gear to rotate in one direction is provided on the reed seat.

[0011] By adopting the above technical solution, the contact belt can replace the reed to contact the weft yarn. Since the contact position of the reed and the weft yarn remains unchanged, the contact point between the reed and the weft yarn is severely worn during the beating process. The contact belt is driven to rotate by the rotating part, so that the contact point between the contact belt and the weft yarn changes. The entire outer peripheral side of the contact belt can be in contact with the weft yarn, thereby reducing the wear of the contact belt and extending the service life of the contact belt, thereby slowing down the replacement frequency of the reed. When the reed seat rotates in the direction away from the weft yarn, the driving component can drive the matching gear to rotate, and the matching gear drives the contact gear to rotate. The contact gear engages with the teeth of the contact belt to drive the contact belt to rotate. When the reed seat rotates in the direction close to the weft yarn, the driving component cannot drive the matching gear to rotate. At this time, the contact belt is in a stationary state, reducing the rotation of the weft yarn when the contact belt contacts the weft yarn.

[0012] Optionally, the driving assembly includes a driving rod, a plurality of driving gears, a driving gear, an incomplete gear and a one-way rotating member. The length of the driving rod is parallel to the distribution direction of the reed blades. The driving rod is rotatably connected to the reed seat. A plurality of driving gears correspond to a plurality of reed blades. The driving gear is arranged on the driving rod. The driving gear is used to engage with the mating gear. The driving gear is coaxially arranged with the driving rod. The driving gear is rotatably connected to the reed seat. The incomplete gear is arranged on the bracket. The incomplete gear is engaged with the driving gear. The one-way rotating member is used for the driving gear to drive the driving rod to rotate in one direction.

[0013] By adopting the above technical solution, when the sley swings in the direction away from the weft yarn, the driving gear rotates relative to the incomplete gear, and the driving gear rotates the driving rod through the one-way rotating member, and the driving rod drives the driving gear to rotate, and the driving gear drives the matching gear to rotate, and the matching gear drives the contact gear to rotate, and the contact gear drives the contact belt to rotate through the latch teeth, and the rotation of the contact belt changes the contact position with the weft yarn. When the sley swings in the direction of the weft yarn, the driving gear rotates relative to the incomplete gear. At this time, the one-way rotating member will drive the gear to disengage from the driving rod, and the driving rod stops rotating, ensuring that when the contact belt contacts the weft yarn, the contact belt remains stationary, reducing the rotation of the weft yarn, thereby improving the quality of the weft yarn.

[0014] Optionally, the one-way rotating member includes a ratchet, a pawl and a limiting spring, the ratchet is coaxially arranged with the driving rod, the ratchet is arranged on the driving rod, the pawl is rotatably connected to the driving gear, and the limiting spring is used to keep the pawl engaged with the ratchet.

[0015] By adopting the above technical solution, when the sley swings in the direction away from the weft yarn, the driving gear rotates relative to the incomplete gear, and the pawl on the driving gear remains engaged with the pawl under the action of the limiting spring. The ratchet drives the driving rod to rotate, and the driving rod drives the driving gear to rotate. The driving gear drives the contact belt to rotate through the driving member, thereby changing the contact position between the contact belt and the weft yarn during subsequent beating. When the sley swings in the direction close to the weft yarn, the driving gear rotates relative to the incomplete gear, and the pawl on the driving gear overcomes the action of the limiting spring and moves in the direction away from the pawl. The ratchet cannot rotate, the driving rod will not drive the driving gear to rotate, and the driving member cannot drive the contact belt to rotate, so that the contact point between the contact belt and the weft yarn remains unchanged during beating.

[0016] Optionally, the swing assembly includes a first crank, a second crank, a connecting rod and a swing motor, the length direction of the first crank is parallel to the distribution direction of the plurality of reed blades, the first crank is rotatably connected to the bracket, the second crank is parallel to the first crank, the second crank is rotatably connected to the bracket, the length of the crank arm of the first crank is greater than the length of the crank arm of the second crank, one end of the connecting rod is rotatably connected to the connecting rod shaft diameter of the first crank, the other end of the connecting rod is rotatably connected to the connecting rod shaft diameter of the second crank, and the sley is arranged on the second crank.

[0017] By adopting the above technical solution, the swing assembly is used to drive the sley to swing, the swing motor is used to drive the second crank to rotate, and the connecting rod shaft diameter of the second crank drives the connecting rod to rotate. Since the crank arm length of the second crank is greater than the crank of the second crank, when the connecting rod moves circumferentially with the second crank, the connecting rod will drive the first crank to swing, and the first crank will drive the sley to swing. The first crank, the second crank and the connecting rod form a crank rocker structure, which is simple and reasonable in structure.

[0018] Optionally, the first crank is coaxially arranged with the incomplete gear.

[0019] By adopting the above technical solution, the first crank is coaxially arranged with the incomplete gear. When the swing assembly drives the sley to swing, the sley rotates around the first crank. The incomplete gear and the first crank are in a coaxial state, and the driving gear can always be in a meshing state with the incomplete gear.

[0020] Optionally, the outer sidewall of the contact zone is rounded.

[0021] By adopting the above technical solution, the rounded corners of the outer side wall of the contact zone can reduce the severe friction of the contact zone of the weft yarn, reduce the increase of hairiness and fiber breakage.

[0022] Optionally, plug-in blocks are provided at both ends of the reed blade along the length direction, and the volume of the plug-in block connected to the reed seat is larger than the volume of the plug-in block connected to the abutment plate.

[0023] By adopting the above technical solution, the plug-in block makes it easy for the reed to be connected to the reed seat and the abutment plate, and the volumes of the plug-in blocks corresponding to the reed seat and the abutment plate are different, which serves as a fool-proof setting, making it easy for staff to place them correctly and achieve coordination between the rotating parts and the drive assembly.

[0024] Optionally, the plug-in block is provided with a guiding slope for facilitating plug-in.

[0025] By adopting the above technical solution, the guiding inclined surface makes it easier for the staff to clamp the reed blades to the reed seat and the abutment plate, thereby improving the convenience of operation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. One end of the reed blade is snapped onto the reed seat, and the mounting piece mounts the abutment plate onto the other end of the reed blade, achieving a detachable connection of the reed blade, making it easy to replace damaged reed blades and reducing equipment maintenance costs. 2. The contact belt moves relative to the reed blade during the beating process through the rotating parts and the drive assembly, changing the contact position with the weft yarn, thereby reducing the wear of the contact belt and extending the service life of the reed blade; 3. The one-way rotating member is used to realize that the contact belt rotates when the sley moves away from the weft yarn, and the contact belt is stationary when the sley moves toward the weft yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a beating device used in air-jet looms.

[0028] Figure 2 yes Figure 1 Schematic diagram of the structure of the swing component.

[0029] Figure 3 yes Figure 2 Cross-section of the reed blade showing the rotating parts.

[0030] Figure 4 yes Figure 1 Cross-section of the center sley showing the drive assembly.

[0031] Figure 5 yes Figure 1 A cross-sectional view of the middle abutment plate is used to illustrate the fitting relationship between the abutment plate and the reed blade.

[0032] Figure numerals: 1. bracket; 2. swing assembly; 21. first crank; 22. second crank; 23. connecting rod; 24. swing motor; 3. sley; 31. first clamping groove; 4. sley blade; 41. plug-in block; 411. avoidance groove; 412. guide slope; 413. cavity; 42. contact belt; 43. latching tooth; 5. abutment plate; 51. second clamping groove; 6. mounting member; 61. abutment rod; 62. nut; 63. threaded rod; 7. rotating member; 71. contact gear; 72. mating gear; 8. driving assembly; 81. driving rod; 82. driving gear; 83. driving gear; 831. accommodating chamber; 84. incomplete gear; 85. one-way rotating member; 851. ratchet; 852. pawl; 853. limiting spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0034] The embodiment of the present application discloses a beating device for an air jet loom. Figure 1 A beating device for an air-jet loom includes a bracket 1, a swinging assembly 2, a sley 3, a plurality of sley blades 4, an abutment plate 5 and a mounting member 6. The sley 3 is horizontally arranged, and the sley 3 is rotatably connected to the bracket 1 at both ends along the horizontal direction. The swinging assembly 2 is used to drive the sley 3 to swing, and the plurality of sley blades 4 are evenly distributed along the length direction of the sley 3. The mounting member 6 is used to mount the sley blades 4 to the sley 3.

[0035] The swing assembly 2 includes a first crank 21, a second crank 22, a connecting rod 23 and a swing motor 24. The length direction of the second crank 22 is parallel to the length direction of the sley 3. The second crank 22 is coaxially arranged with the rotation axis of the sley 3. The second crank 22 is rotatably connected to the bracket 1. The sley 3 is fixedly set on the second crank 22. The first crank 21 and the second crank 22 are parallel to each other. The first crank 21 is rotatably connected to the bracket 1. The crank arm length of the first crank 21 is smaller than the crank arm length of the second crank 22. The swing motor 24 is fixedly set on the bracket 1. The output shaft of the swing motor 24 is fixedly connected to one end of the first crank 21. One end of the connecting rod 23 is rotatably connected to the connecting rod shaft diameter of the first crank 21, and the other point of the connecting rod 23 is rotatably connected to the connecting rod shaft diameter of the second crank 22.

[0036] The end surface of the sley 3 facing away from the second crank 22 is provided with a plurality of first snap-fit ​​grooves 31, and the plurality of first snap-fit ​​grooves 31 are evenly distributed along the length direction of the sley 3. The plurality of reed blades 4 correspond one to one with the plurality of first snap-fit ​​grooves 31. The reed blade 4 is provided with a plug-in block 41 at both ends along the length direction, wherein the volume of the plug-in block 41 at one end is larger than the volume of the plug-in block 41 at the other end. A guiding inclined surface 412 is provided between the end of the plug-in block 41 facing away from the reed blade 4 and the side wall of the plug-in block 41. The larger plug-in block 41 is used to engage with the first snap-fit ​​groove 31. The reed blade 4 is also provided with a contact belt 42, which is sleeved on the outer peripheral side wall of the reed blade 4, and the contact belt 42 is rotatably connected to the reed blade 4. On the inner side wall of the contact belt 42, a plurality of latch teeth 43 are further provided, and the plurality of latch teeth 43 are evenly distributed along the length direction of the contact belt 42. A rotating part 7 is also provided on the reed blade 4, and the rotating part 7 includes a contact gear 71 and a mating gear 72. A cavity 413 is provided inside the reed blade 4, and the contact gear 71 is located in the cavity 413. The contact gear 71 is rotatably connected to the reed blade 4, and the contact gear 71 is engaged with the latch teeth 43. The mating gear 72 is coaxially arranged with the contact gear 71, and the mating gear 72 is fixedly arranged on one end of the contact gear 71. The plug-in block 41 for engaging with the first engaging groove 31 is provided with an avoidance groove 411, and the mating gear 72 is located in the avoidance groove 411.

[0037] A driving assembly 8 is provided on the sley 3, and the driving assembly 8 includes a driving rod 81, a plurality of driving gears 82, a driving gear 83, an incomplete gear 84 and a one-way rotating member 85. The length direction of the driving rod 81 is parallel to the length direction of the plurality of sleys 3, and the driving rod 81 is rotatably connected to the sley 3. The plurality of driving gears 82 correspond one-to-one to the plurality of sley blades 4. The driving gear 82 is coaxially arranged with the driving rod 81, and the driving gear 82 is fixedly arranged on the driving rod 81. The driving gear 82 is used to engage with the mating gear 72, and the driving gear 83 is coaxially arranged with the driving rod 81, and the driving gear 83 is rotatably connected to one end of the sley 3. The incomplete gear 84 is coaxially arranged with the first crank 21, and the incomplete gear 84 is fixedly arranged on the bracket 1. The incomplete gear 84 remains engaged with the driving gear 83.

[0038] The end surface of the driving gear 83 facing the sley 3 is provided with an accommodating cavity 831, and the one-way rotating member 85 is located in the accommodating cavity 831. The one-way rotating member 85 includes a ratchet 851, three pawls 852 and three limiting springs 853. The ratchet 851 is coaxially arranged with the driving rod 81. The ratchet 851 is fixedly arranged on one end of the driving rod 81. The accommodating cavity 831 of the driving gear 83 is used to cover the ratchet 851. The three pawls 852 are evenly distributed along the circumference of the ratchet 851. The pawls 852 are rotatably connected to the On the inner wall of the accommodating cavity 831, three limiting springs 853 correspond to three pawls 852. One end of the limiting spring 853 is fixed on the inner wall of the accommodating cavity 831, and the other end of the limiting spring 853 is fixed on the pawl 852. When the sley 3 rotates toward the direction close to the weft yarn, the pawl 852 overcomes the limiting spring 853 and disengages from the pawl 852. When the sley 3 rotates toward the direction away from the weft yarn, the pawl 852 remains engaged with the pawl 852 under the action of the limiting spring 853.

[0039] The mounting member 6 includes two abutment rods 61 and two nuts 62. The two abutment rods 61 are distributed along the length direction of the sley 3. The length of the abutment rods 61 is parallel to the length direction of the sley blade 4. One end of the abutment rod 61 is fixedly provided on the sley 3. A threaded rod 63 is fixedly provided on the end of the abutment rod 61 away from the sley 3. The length direction of the threaded rod 63 is parallel to the length direction of the abutment rod 61. The diameter of the threaded rod 63 is smaller than the diameter of the abutment rod 61. The length direction of the abutment plate 5 is parallel to In the length direction of the sley 3, the threaded rod 63 passes through the abutment plate 5, and the two nuts 62 correspond to the two threaded rods 63. The nuts 62 are threadedly connected to the threaded rods 63, and the nuts 62 abut against the abutment plate 5. The abutment plate 5 remains abutted against one end of the abutment rod 61. A plurality of second snap-in grooves 51 are opened at one end of the abutment plate 5 facing the reed blade 4. The plurality of second snap-in grooves 51 are evenly distributed along the length direction of the abutment plate 5, and the smaller plug-in block 41 is used to snap-fit ​​with the second snap-in groove 51.

[0040] The implementation principle of a beating device for an air-jet loom in an embodiment of the present application is as follows: when the beating device is working, the swing motor 24 drives the second crank 22 to rotate, and the second crank 22 drives the first crank 21 to rotate through the connecting rod 23. The first crank 21, the second crank 22 and the connecting rod 23 form a crank rocker structure, so that the sley 3 swings, so that the reed 4 on the sley 3 performs a beating operation. When the sley 3 rotates relative to the bracket 1 in a direction away from the weft yarn, the incomplete gear 84 drives the driving gear 83 to rotate, and the driving gear 83 rotates the driving rod 81 through the one-way rotating member 85. The driving rod 81 drives the matching gear 72 to rotate through the driving gear 82, and the matching gear 72 drives the contact gear 71 to rotate. The contact gear 71 drives the contact belt 42 to rotate on the reed 4 through the latch tooth 43, thereby changing the contact point between the contact belt 42 and the weft yarn during the next beating.

[0041] When the sley 3 rotates relative to the bracket 1 in the direction close to the weft yarn, the incomplete gear 84 drives the driving gear 83 to rotate, and the one-way rotating member 85 cannot drive the driving shaft to rotate, so that the contact belt 42 is stationary relative to the reed 4, so that during the beating process, the contact belt 42 will not drive the weft yarn to rotate, reducing the impact on the fabric weaving.

[0042] When the reed blade 4 is worn and needs to be replaced, the staff can remove the abutment plate 5 through the mounting part 6, and then detach the reed blade 4 that needs to be replaced from the reed seat 3. After the replacement is completed, the abutment plate 5 is installed through the mounting part 6 to complete the replacement. Only the reed blade 4 needs to be replaced, which reduces the maintenance cost of the equipment.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A beating-up device for an air jet loom, characterized in that: The invention comprises a bracket (1), a swinging assembly (2), a sley (3), a plurality of sley blades (4), an abutment plate (5) and a mounting member (6), wherein the sley (3) is rotatably connected to the bracket (1), the plurality of sley blades (4) are distributed along the length direction of the sley (3), one end of the sley blade (4) is clamped on the sley (3), the abutment plate (5) is clamped on the other end of the sley blade (4), the mounting member (6) is used to mount the abutment plate (5) on the sley (3), and the swinging assembly (2) is used to drive the sley (3) to swing and beat the weft.

2. The beating-up device for an air jet loom according to claim 1, characterized in that: The mounting member (6) comprises two abutting rods (61) and two nuts (62). The length direction of the abutting rods (61) is parallel to the distribution direction from the sley (3) to the abutting plate (5). One end of the abutting rod (61) is arranged on the sley (3). The other end of the abutting rod (61) is provided with a threaded rod (63). The diameter of the threaded rod (63) is smaller than the diameter of the abutting rod (61). The abutting plate (5) passes through the threaded rod (63). The nut (62) is used for being threadedly connected to the threaded rod (63) and abutting the abutting plate (5) on the abutting rod (61).

3. The beating-up device for an air jet loom according to claim 1, characterized in that: The outer periphery of the reed blade (4) is provided with a contact belt (42), and the reed blade (4) is provided with a rotating member (7) for driving the contact belt (42) to rotate, and the rotating member (7) includes a contact gear (71) and a matching gear (72), and the inner side wall of the contact belt (42) is provided with a plurality of latching teeth (43), and the plurality of latching teeth (43) are distributed along the length direction of the contact belt (42), and the contact gear (71) is located inside the reed blade (4), and the contact gear (71) is rotatably connected to the reed blade (4), and the latching teeth (43) are meshed with the contact gear (71), and the matching gear (72) is coaxially arranged with the contact gear (71), and the matching gear (72) is located outside the reed blade (4), and the matching gear (72) is arranged on the axis of the contact gear (71), and the sley (3) is provided with a driving assembly (8) for driving the matching gear (72) to rotate in one direction.

4. The beating-up device for an air jet loom according to claim 3, characterized in that: The driving assembly (8) comprises a driving rod (81), a plurality of driving gears (82), a driving gear (83), an incomplete gear (84) and a one-way rotating member (85). The length of the driving rod (81) is parallel to the distribution direction of the reed blades (4). The driving rod (81) is rotatably connected to the reed seat (3). The plurality of driving gears (82) correspond to the plurality of reed blades (4). The driving gear (82) is arranged on the driving rod (81). The driving gear (82) is used to mesh with the matching gear (72). The driving gear (83) is coaxially arranged with the driving rod (81). The driving gear (83) is rotatably connected to the reed seat (3). The incomplete gear (84) is arranged on the bracket (1). The incomplete gear (84) meshes with the driving gear (83). The one-way rotating member (85) is used for the driving gear (83) to drive the driving rod (81) to rotate in one direction.

5. The beating-up device for an air jet loom according to claim 4, characterized in that: The one-way rotating member (85) includes a ratchet (851), a pawl (852) and a limiting spring (853). The ratchet (851) is coaxially arranged with the driving rod (81). The ratchet (851) is arranged on the driving rod (81). The pawl (852) is rotatably connected to the driving gear (83). The limiting spring (853) is used to keep the pawl (852) engaged with the ratchet (851).

6. The beating-up device for an air jet loom according to claim 4, characterized in that: The swing assembly (2) comprises a first crank (21), a second crank (22), a connecting rod (23) and a swing motor (24), wherein the length direction of the first crank (21) is parallel to the distribution direction of the plurality of reed blades (4), the first crank (21) is rotatably connected to the bracket (1), the second crank (22) is parallel to the first crank (21), the second crank (22) is rotatably connected to the bracket (1), the length of the crank arm of the first crank (21) is greater than the length of the crank arm of the second crank (22), one end of the connecting rod (23) is rotatably connected to the connecting rod shaft diameter of the first crank (21), and the other end of the connecting rod (23) is rotatably connected to the connecting rod shaft diameter of the second crank (22), and the sley (3) is arranged on the second crank (22).

7. The beating-up device for an air jet loom according to claim 6, characterized in that: The first crank (21) and the incomplete gear (84) are coaxially arranged.

8. The beating-up device for an air jet loom according to claim 3, characterized in that: The outer side wall of the contact zone (42) is rounded.

9. The beating-up device for an air jet loom according to claim 1, characterized in that: Both ends of the reed blade (4) along the length direction are provided with plug-in blocks (41), and the volume of the plug-in blocks (41) engaged with the reed seat (3) is larger than the volume of the plug-in blocks (41) engaged with the abutment plate (5).

10. The beating-up device for an air jet loom according to claim 9, characterized in that: The plug-in block (41) is provided with a guiding inclined surface (412) for facilitating plug-in.

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