Jacquard open rapier loom

Abstract

A driving gear drives an opening gear to rotate, the opening gear drives a weft insertion gear and a jacquard transmission assembly to move, the weft insertion gear drives a beating-up cam to rotate through a power shaft, and the beating-up cam is matched with a roller to drive a pressing arm to reciprocate to conduct beating-up work. The two or more wheel shafts synchronously run to drive the two or more pressing arms to synchronously move, so that the multiple pressing arms jointly beat up, and the beating-up force of the cloth cover of the wide loom is more uniform; meanwhile, the weft insertion gear drives a fan-shaped gear to reciprocate through a rocker arm and a cross shaft, so that the fan-shaped gear drives a rapier wheel to perform weft insertion work; and synchronously, the open gear drives the first conical wheel to rotate through the third transmission shaft, and the first conical wheel is meshed with the second conical wheel to drive the second transmission shaft to rotate, so that the jacquard mechanism connected with the second transmission shaft performs jacquard work.

Description

Technical Field

[0001] The invention relates to the technical field of textile machines, in particular to a jacquard open rapier loom. Background Art

[0002] Rapier loom is the most widely used shuttleless loom at present. In addition to the characteristics of high speed, high degree of automation and high efficiency of shuttleless loom, its active weft insertion method has strong variety adaptability and can adapt to the weft insertion of various types of yarns. In addition, rapier loom also has obvious advantages in multi-color weft weaving, and can produce yarn-dyed products with up to 16 colors of weft yarn. The commonly used weft insertion mechanism usually converts the rotary motion into the reciprocating swing of the rapier through a complex connecting rod or cam group. There are many transmission links, significant cumulative errors, and it is difficult to achieve flexible adjustment of the stroke, which limits the adaptability of the loom to different fabrics. In addition, in the production process of wide fabrics, the rapier loom often has uneven distribution of the weft beating force on the cloth surface due to the single design of the weft beating mechanism. Summary of the invention

[0003] In view of the above technical problems, the present invention proposes a jacquard open rapier loom, in which multiple pressure arms beat the weft together, so that the beating force on the wide loom cloth surface is more uniform, and the rotational motion of the weft insertion gear is converted into precise reciprocating swing of the fan-shaped teeth through the design of the rocker arm and the cross shaft, which simplifies the transmission structure of the original loom equipment, reduces the transmission components, and reduces the weight of the overall structure.

[0004] The technical solution adopted by the present invention is as follows: a jacquard opening rapier loom, comprising a jacquard opening transmission mechanism, a weft cutting mechanism, at least two groups of weft beating mechanisms and two groups of weft insertion mechanisms, wherein: the weft beating mechanism comprises a base, a wheel shaft, a weft beating cam, a roller and a pressure arm, the wheel shaft is rotatably installed on the base, the wheel shaft is coaxially fixedly connected with the weft beating cam, the roller is coaxially fixedly connected with the pressure arm, the weft beating cam and the roller are rollingly matched, multiple groups of the weft beating mechanisms are arranged in sequence along the length direction of the base, the rotating shaft is coaxially connected with the adjacent rotating shaft through a coupling, the weft beating mechanisms located at both ends of the base are respectively connected with the weft insertion mechanisms, one group of weft insertion mechanisms is connected with the jacquard opening transmission mechanism, and the other group of weft insertion mechanisms is connected with the weft cutting mechanism; the weft insertion mechanism comprises a power shaft, a weft insertion gear, a rotating arm, a rocker arm, a cross shaft and a fan-shaped tooth, one end of the power shaft is connected to the wheel shaft The gear is coaxially fixedly connected, the other end of the power shaft is coaxially fixedly connected with the weft insertion gear, the rotating arm is eccentrically installed on the gear end face, the rocker arm is rotatably connected with the rotating arm, and the rotation axis of the rocker arm does not coincide with the rotation axis of the rotating arm, the cross shaft is rotatably connected with the rocker arm, and the fan-shaped tooth is fixedly connected with one side of the cross shaft; the jacquard opening transmission mechanism includes a driving gear, an opening gear, a first transmission shaft, a first conical wheel, a second transmission shaft and a second conical wheel, the opening gear is respectively meshed with the driving gear and the weft insertion gear, the driving gear is connected with a rotating motor, one end of the first transmission shaft is coaxially connected with the opening gear, one end of the first transmission shaft is coaxially connected with the first conical wheel, the first conical wheel is meshed with the second conical wheel, one end of the second transmission shaft is coaxially connected with the second conical wheel, and the other end of the second transmission shaft is used to connect the jacquard mechanism.

[0005] Optionally, the driving gear is coaxially connected to a third transmission shaft, one end of the third transmission shaft is connected to a rotating motor, and the other end of the third transmission shaft passes through the driving gear and is connected to a brake assembly, the brake assembly comprises an elastic member, a brake disc, a brake disc and an electromagnet, the electromagnet, the elastic member, the brake disc, the friction plate and the open gear are arranged in sequence along the axial direction of the third transmission shaft, one end of the elastic member is connected to the electromagnet, and the other end of the elastic member is connected to the brake disc, the brake disc is movably abutted against the friction plate, and there is a gap between the friction plate and the open gear.

[0006] Optionally, the weft cutting assembly includes a weft cutting gear, a weft cutting cam, a transmission arm, a mounting seat, a fixed blade, a movable blade, a first screw, a first nut and a first spring. The weft cutting gear is meshed with the weft insertion gear, and the weft cutting gear is connected to the weft cutting cam through a fourth transmission shaft. One end of the transmission arm is in contact with the weft beating cam, and the other end of the transmission arm is connected to the movable blade. The two ends of the transmission arm are hinged to the mounting seat, the first screw passes through the movable blade, the fixed blade and the first nut in sequence, and is threadedly connected, the first spring is sleeved on the outer peripheral wall of the first screw, one end of the first spring abuts against the movable blade, and the other end of the first spring abuts against the first nut.

[0007] Optionally, the mounting seat is fixedly mounted with a support plate, a knife seat is movably provided at the end of the support plate, the fixed blade is fixedly mounted on the knife seat, the support plate is provided with an arc hole, the knife seat is connected to the support plate via a second screw, and the second screw passes through the arc hole, the knife seat and the second nut thread in sequence.

[0008] Optionally, the transmission arm includes a first swing arm, a second swing arm and a transmission rod connected in sequence, the first swing arm is hinged to the mounting seat, one end of the second swing arm is connected to the first swing arm at an angle, and the other end of the second swing arm is connected to the transmission rod at an angle, the fixed blade is provided with a groove for the transmission rod to pass through, and the movable blade is provided with a through hole that matches the clearance of the transmission rod.

[0009] Optionally, the first swing arm is in contact with the weft cutting cam, the first swing arm is installed on the mounting seat via a rotating shaft, the rotating shaft is fixedly connected to the mounting seat, the first swing arm is provided with a through hole that cooperates with the rotating shaft for rotation, the knife seat is provided at one end of the support plate, and a second spring is provided at the other end of the support plate, one end of the second spring is connected to the support plate, and the other end of the second spring is connected to an end of the first swing arm away from the second swing arm, and a roller is provided for rotation of the first swing arm, and the roller is in rolling contact with the weft cutting cam.

[0010] Optionally, the support plate is provided with a third screw, the third screw passes through the support plate and is threadedly engaged with a third nut, the third screw thread is threadedly engaged with a fourth nut, the third nut and the fourth nut clamp the support plate, and the end of the second spring away from the first swing arm is fixedly connected to the third screw.

[0011] Optionally, the rocker arm includes a first connecting arm and a second connecting arm connected to the first connecting arm at an angle, the first connecting arm is rotatably connected to the rotating arm through a first bearing, the second connecting arm includes a first connecting end and a second connecting end arranged corresponding to the first connecting end, the cross shaft is rotatably connected to the first connecting end through a second bearing, and the cross shaft is rotatably connected to the second connecting end through a third bearing.

[0012] Optionally, the cross shaft includes a first connecting shaft, a second connecting shaft, a third connecting shaft and a fourth connecting shaft, the first connecting shaft is coaxially connected to the second connecting shaft, the third connecting shaft is coaxially connected to the fourth connecting shaft, the first connecting shaft and the third connecting shaft are set at an angle, the first connecting shaft is rotatably connected to the first connecting end through the second bearing, the second connecting shaft is rotatably connected to the second connecting end through the third bearing, the third connecting shaft is rotatably installed on the weft introduction box through the fourth bearing, and the fourth connecting shaft is rotatably installed on the weft introduction box through the fifth bearing.

[0013] Optionally, a protrusion is provided on the side of the weft insertion gear facing the rotating arm, and the protrusion is provided with a slide groove. The rotating arm includes a bearing seat and a connecting arm integrally connected to the bearing seat, the first bearing is arranged inside the bearing seat, the bottom surface of the connecting arm is slidably connected to the slide groove, the protrusion is provided with a pressure block, and the side wall of the connecting arm is provided with a first inclined surface along the length direction, the pressure block is provided with a second inclined surface matching the first inclined surface, the second inclined surface is pressed on the upper surface of the second inclined surface, and the pressure block is mounted on the protrusion by screws.

[0014] The beneficial effects of the present invention are as follows: the rotating motor drives the active gear to rotate, the active gear drives the open gear to rotate, the open gear drives the weft insertion gear and the jacquard transmission assembly to move respectively, the weft insertion gear drives the weft beating cam to rotate through the power shaft, the weft beating cam drives the pressure arm to reciprocate through the cooperation with the roller to perform the weft beating work, two or more wheel shafts rotate synchronously, drive two or more pressure arms to move synchronously, realize the common weft beating of multiple pressure arms, and make the weft beating force of the wide-width loom cloth more uniform; at the same time, the weft insertion gear drives the fan-shaped gear to reciprocate through the rocker arm and the cross shaft The reciprocating motion makes the fan-shaped teeth drive the sword wheel to insert the weft. The design of the rocker arm and the cross shaft converts the rotational motion of the weft insertion gear into the precise reciprocating swing of the fan-shaped teeth, which simplifies the transmission structure of the original loom equipment, reduces the transmission parts, reduces the weight of the entire structure, reduces the structural load, and reduces the reciprocating impact on the overall loom transmission structure. Synchronously, the open gear drives the first conical wheel to rotate through the first transmission shaft, and the first conical wheel drives the second transmission shaft to rotate by meshing with the second conical wheel, so that the jacquard mechanism connected to the second transmission shaft performs jacquard work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a jacquard open rapier loom provided in an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the meshing of the driving gear and the open gear of the jacquard open rapier loom provided in an embodiment of the present invention;

[0017] Figure 3A schematic diagram of the opening gear of the jacquard opening rapier loom proposed in an embodiment of the present invention being meshed with the driving gear and the weft insertion gear respectively;

[0018] Figure 4 A schematic diagram of a weft cutting mechanism of a jacquard open rapier loom according to an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of a first spring of a weft cutting mechanism of a jacquard shedding rapier loom according to an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of a second spring of a weft cutting mechanism of a jacquard open rapier loom according to an embodiment of the present invention;

[0021] Figure 7 A cross-sectional view of a weft insertion mechanism of a jacquard open rapier loom according to an embodiment of the present invention;

[0022] Figure 8 A schematic structural diagram of a weft insertion mechanism of a jacquard open rapier loom according to an embodiment of the present invention;

[0023] Fig. 9 A schematic structural diagram of a cross shaft of a weft insertion mechanism of a jacquard open rapier loom provided in an embodiment of the present invention;

[0024] Fig.10 It is a schematic structural diagram of a pressing block of a weft insertion mechanism of a jacquard open rapier loom according to an embodiment of the present invention.

[0025] The marks in the drawings are: 1, axle; 2, beating cam; 3, roller; 4, pressure arm; 5, power shaft; 6, weft insertion gear; 7, rotating arm; 8, rocker arm; 9, cross shaft; 10, fan-shaped teeth; 11, driving gear; 12, open gear; 13, first transmission shaft; 14, first conical wheel; 15, second transmission shaft; 16, second conical wheel; 17, jacquard mechanism; 18, third transmission shaft; 19, electromagnet; 20, elastic member; 21, brake disc; 22, friction plate; 23, weft cutting cam; 24, first swing arm; 25, mounting seat; 26, fixed blade; 27, movable blade; 28, first screw; 29, rotating shaft; 30, first spring; 31, second swing arm; 32, transmission rod; 33, arc shaped hole; 34, knife seat; 35, second screw; 36, second spring; 37, third screw; 38, third nut; 39, fourth nut; 40, roller; 41, through hole; 42, support plate; 43, groove; 44, first connecting arm; 45, second connecting arm; 46, first bearing; 47, second bearing; 48, third bearing; 49, first connecting shaft; 50, second connecting shaft; 51, third connecting shaft; 52, fourth connecting shaft; 53, fourth bearing; 54, fifth bearing; 55, protrusion; 56, slide groove; 57, bearing seat; 58, connecting arm; 59, pressure block; 60, first inclined surface; 61, screw; 62, rotating motor; 63, weft shearing gear; 64, fourth transmission shaft; 65, weft insertion box. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 1 to 10As shown, this embodiment discloses a jacquard opening rapier loom, including a jacquard opening transmission mechanism, a weft cutting mechanism, at least two sets of weft beating mechanisms and two sets of weft insertion mechanisms, wherein: the weft beating mechanism includes a base, a wheel shaft 1, a weft beating cam 2, a roller 403 and a pressure arm 4, the wheel shaft 1 is rotatably mounted on the base, the wheel shaft 1 is coaxially fixedly connected with the weft beating cam 2, the roller 403 is coaxially fixedly connected with the pressure arm 4, the weft beating cam 2 and the roller 403 are rollingly matched, and multiple sets of The beating-up mechanisms are arranged in sequence along the length direction of the base, the rotating shaft 29 is coaxially connected with the adjacent rotating shaft 29 through a coupling, and the beating-up mechanisms at both ends of the base are respectively connected with the weft insertion mechanisms, one group of weft insertion mechanisms is connected with the jacquard opening transmission mechanism, and the other group of weft insertion mechanisms is connected with the weft cutting mechanism; the weft insertion mechanism includes a power shaft 5, a weft insertion gear 6, a rotating arm 7, a rocker arm 8, a cross shaft 9 and a sector tooth 10, one end of the power shaft 5 is coaxially fixedly connected with the wheel shaft 1, and the other end of the power shaft 5 is coaxially fixedly connected with the wheel shaft 1. The end is coaxially fixedly connected with the weft insertion gear 6, the rotating arm 7 is eccentrically installed on the gear end face, the rocker arm 8 is rotatably connected with the rotating arm 7, and the rotating axis 29 line of the rocker arm 8 does not coincide with the rotating axis 29 line of the rotating arm 7, the cross shaft 9 is rotatably connected with the rocker arm 8, and the fan-shaped tooth 10 is fixedly connected with one side of the cross shaft; the jacquard opening transmission mechanism includes a driving gear 11, an opening gear 12, a first transmission shaft 13, a first conical wheel 14, a second transmission shaft 15 and a second conical wheel 16, the opening gear 12 is respectively meshed with the driving gear 11 and the weft insertion gear 6, the driving gear 11 is connected to a rotating motor 62, one end of the first transmission shaft 13 is coaxially connected with the opening gear 12, one end of the first transmission shaft 13 is coaxially connected with the first conical wheel 14, the first conical wheel 14 is meshed with the second conical wheel 16, one end of the second transmission shaft 15 is coaxially connected with the second conical wheel 16, and the other end of the second transmission shaft 15 is used to connect the jacquard mechanism 17.The rotating motor 62 drives the driving gear 11 to rotate, the driving gear 11 drives the open gear 12 to rotate, the open gear 12 drives the weft insertion gear 6 and the jacquard transmission assembly to move respectively, the weft insertion gear 6 drives the beating cam 2 to rotate through the power shaft 5, the beating cam 2 drives the pressing arm 4 to reciprocate through the cooperation with the roller 403 to perform the beating work, two or more wheel shafts 1 operate synchronously, drive two or more pressing arms 4 to move synchronously, realize the common beating of multiple pressing arms 4, and make the beating force of the wide-width loom cloth more uniform; at the same time, the weft insertion gear 6 drives the fan-shaped gear 10 to reciprocate through the rocker arm 8 and the cross shaft 9 The fan-shaped teeth 10 drive the sword wheel to insert the weft. The design of the rocker arm 8 and the cross shaft 9 converts the rotational motion of the weft insertion gear 6 into the precise reciprocating swing of the fan-shaped teeth 10, which simplifies the transmission structure of the original loom equipment, reduces the transmission components, reduces the weight of the entire structure, reduces the structural load, and reduces the reciprocating impact on the overall loom transmission structure. Synchronously, the open gear 12 drives the first conical wheel 14 to rotate through the first transmission shaft, and the first conical wheel 14 drives the second transmission shaft 15 to rotate by meshing with the second conical wheel 16, so that the jacquard mechanism 17 connected to the second transmission shaft 15 performs jacquard work.

[0028] like Figure 2 As shown, the driving gear 11 is coaxially connected to the third transmission shaft 18, one end of the third transmission shaft 18 is connected to the rotating motor 62, and the other end of the third transmission shaft 18 passes through the driving gear 11 and is connected to a brake assembly, and the brake assembly includes an elastic member 20, a brake disc 21, a brake disc 21 and an electromagnet 19, and the electromagnet 19, the elastic member 20, the brake disc 21, the friction plate 22 and the open gear 12 are arranged in sequence along the axial direction of the third transmission shaft, one end of the elastic member 20 is connected to the electromagnet 19, and the other end of the elastic member 20 is connected to the brake disc 21, the brake disc 21 and the friction plate 22 are movably abutted against each other, and there is a gap between the friction plate 22 and the open gear 12. When the rotating motor 62 is in standby state or special power-off state, the electromagnet 19 loses its suction force on the brake disc 21 due to power failure, and the elastic member 20 pushes the brake disc 21, and the brake disc 21 is pressed against the friction plate 22 under the thrust of the spring. Since the electromagnet 19 and the friction plate 22 are fixed on the third transmission shaft, the third transmission shaft stops rotating as soon as possible, eliminating the rotational inertia of the third transmission shaft, and preventing the textile machine from causing damage to the fabric or the operator in the asynchronous or special power-off stall state. The rotating motor 62, the encoder, and the electromagnet 19 are respectively connected to the controller. When the rotating motor 62 is in standby state or power is off, the controller controls the electromagnet 19 to power off, and the encoder is used to transmit the angle signal of the open gear 12 to the controller.

[0029] In this embodiment, if Figures 4 to 6As shown, the weft cutting assembly includes a weft cutting gear 63, a weft cutting cam 23, a transmission arm, a mounting seat 25, a fixed blade 26, a movable blade 27, a first screw rod 28, a first nut and a first spring 30. The weft cutting gear 63 is meshed with the weft insertion gear 6, and the weft cutting gear 63 is connected to the weft cutting cam 23 through a fourth transmission shaft 64. One end of the transmission arm is in contact with the weft beating cam 2, and the other end of the transmission arm is connected to the movable blade 27. The two ends of the transmission arm are hinged to the mounting seat 25. The first screw rod 28 passes through the movable blade 27 and the fixed blade 26 in sequence and is threadedly connected to the first nut. The first spring 30 is sleeved on the outer peripheral wall of the first screw rod 28, and one end of the first spring 30 abuts against the movable blade 27, and the other end of the first spring 30 abuts against the first nut. The weft insertion gear 6 drives the weft cutting gear 63 to rotate, and the fourth transmission shaft 64 is coaxially connected to the weft cutting gear 63. The weft cutting gear 63 drives the weft cutting cam 23 to rotate through the fourth transmission shaft 64. The weft cutting cam 23 drives the transmission arm to move up and down, and the transmission arm drives the movable blade 27 to move up and down, so that the movable blade 27 moves relative to the fixed blade 26 to cut the weft yarn. When the yarn variety is changed, the first nut is rotated to make the first nut move axially along the first screw rod 28. The gap between the movable blade 27 and the fixed blade 26 is adjusted by changing the preload force of the first spring 30, so that the movable blade 27 and the fixed blade 26 are suitable for thicker or thinner yarns, thereby achieving the purpose of flexibly adjusting the gap between the movable blade 27 and the fixed blade 26, without the need to disassemble and assemble components, thereby improving work efficiency.

[0030] In this embodiment, if Figure 5 As shown, the mounting seat 25 is fixedly mounted with a support plate 42, and a knife seat 34 is movably provided at the end of the support plate 42, and the fixed blade 26 is fixedly mounted on the knife seat 34. The support plate 42 is provided with an arc hole 33, and the knife seat 34 is connected to the support plate 42 through a second screw 35, and the second screw 35 passes through the arc hole 33, the knife seat 34 and the second nut threadedly cooperate in sequence. By loosening the second nut, the second screw 35 drives the knife seat 34 to move along the arc hole 33, and the fixed knife seat 34 and the movable knife seat 34 are adjusted at multiple angles. After adjustment, the second nut is tightened again, and the second nut and the nut of the second screw 35 clamp the knife seat 34 and the support plate 42, and the knife seat 34 is fixed to the bottom surface of the support plate 42. Due to the clearance fit between the movable blade 27 and the through hole 41, the movement of the movable blade 27 changes the relative angle between the through hole 41 and the transmission rod 32, but does not affect the transmission rod 32 to drive the movable blade 27 up and down.

[0031] like Figure 6As shown, the transmission arm includes a first swing arm 24, a second swing arm 31 and a transmission rod 32 connected in sequence, the first swing arm 24 is hinged to the mounting seat 25, one end of the second swing arm 31 is connected to the first swing arm 24 at an angle, and the other end of the second swing arm 31 is connected to the transmission rod 32 at an angle, the fixed blade 26 is provided with a groove 43 for the transmission rod 32 to pass through, and the movable blade 27 is provided with a through hole 41 that is clearance-matched with the transmission rod 32. The groove 43 is an arc groove, which is provided at the bottom of the fixed blade 26, and the groove 43 is away from the end of the fixed blade 26, and the through hole 41 is away from the end of the movable blade 27, so as to avoid interference with the blade provided at the end of the fixed blade 26 and the blade provided at the end of the movable blade 27. In this embodiment, the first swing arm 24, the second swing arm 31 and the transmission rod 32 are arranged vertically in sequence.

[0032] like Figure 6 As shown, the first swing arm 24 contacts the weft cutting cam 23, the first swing arm 24 is mounted on the mounting seat 25 via a rotating shaft 29, the rotating shaft 29 is fixedly connected to the mounting seat 25, the first swing arm 24 is provided with a through hole 41 that is rotatably matched with the rotating shaft 29, one end of the support plate 42 is provided with the knife seat 34, the other end of the support plate 42 is provided with a second spring 36, one end of the second spring 36 is connected to the support plate 42, and the other end of the second spring 36 is connected to an end of the first swing arm 24 away from the second swing arm 31, the first swing arm 24 is rotatably provided with a roller 403, and the roller 403 is in rolling contact with the weft cutting cam 23. The second spring 36 can provide a reverse preload to offset the inertial impact of the weft cutting cam 23 when it rotates at high speed.

[0033] like Figure 6 As shown, the support plate 42 is provided with a third screw 37, the third screw 37 passes through the support plate 42 and is threadedly matched with a third nut 38, the third screw 37 is threadedly matched with a fourth nut 39, the third nut 38 and the fourth nut 39 clamp the support plate 42, and the end of the second spring 36 away from the first swing arm 24 is fixedly connected to the third screw 37. The second spring 36 is fixedly connected to the nut of the third screw 37, and the second spring 36 is fixedly connected to the first swing arm 24, and the fixing method can be adhesive fixing or casting fixing. By adjusting the length of the third screw 37 extending out of the support plate 42, the pressure of the second spring 36 on the first swing arm 24 is adjusted, and then the contact force between the first swing arm 24 and the weft cutting cam 23 is adjusted.

[0034] In this embodiment, if Figure 7 and 8As shown, the rocker arm 8 includes a first connecting arm 44 and a second connecting arm 45 connected to the first connecting arm 44 at an angle, the first connecting arm 44 is rotatably connected to the rotating arm 7 through a first bearing 46, the second connecting arm 45 includes a first connecting end and a second connecting end corresponding to the first connecting end, the cross shaft 9 is rotatably connected to the first connecting end through a second bearing 47, and the cross shaft 9 is rotatably connected to the second connecting end through a third bearing 48. The first connecting end, the second connecting end, and the first connecting arm 44 of the rocker arm 8 form a Y-shaped structure. The rocker arm 8 is integrally injection molded.

[0035] like Fig. 9 As shown, the cross shaft 9 includes a first connecting shaft 49, a second connecting shaft 50, a third connecting shaft 51 and a fourth connecting shaft 52, the first connecting shaft 49 is coaxially connected to the second connecting shaft 50, the third connecting shaft 51 is coaxially connected to the fourth connecting shaft 52, the first connecting shaft 49 and the third connecting shaft 51 are arranged at an angle, the first connecting shaft 49 is rotatably connected to the first connecting end through the second bearing 47, the second connecting shaft 50 is rotatably connected to the second connecting end through the third bearing 48, the third connecting shaft 51 is rotatably mounted on the weft insertion box 65 through the fourth bearing 53, and the fourth connecting shaft 52 is rotatably mounted on the weft insertion box 65 through the fifth bearing 54. The sector tooth 10 is connected to the first connecting shaft 49 and the second connecting shaft 50.

[0036] like Fig.10 As shown, a protrusion 55 is provided on a side of the weft insertion gear 6 facing the rotating arm 7, and the protrusion 55 is provided with a slide groove 56. The rotating arm 7 includes a bearing seat 57 and a connecting arm 58 integrally connected to the bearing seat 57. The first bearing 46 is arranged inside the bearing seat 57, and the bottom surface of the connecting arm 58 is slidably connected to the slide groove 56. The protrusion 55 is provided with a pressing block 59. The side wall of the connecting arm 58 is provided with a first inclined surface 60 along the length direction. The pressing block 59 is provided with a second inclined surface matching the first inclined surface 60, and the second inclined surface is pressed on the upper surface of the second inclined surface. The pressing block 59 is mounted on the protrusion 55 by a screw 61. The diameter of the protrusion 55 is slightly smaller than the diameter of the weft insertion gear 6. The outer ring of the first bearing 46 is interference fit with the bearing seat 57, and the inner ring of the first bearing 46 is interference fit with the first connecting arm 44. The position of the rotating arm 7 on the weft insertion gear 6 can be adjusted by the slide groove 56, and the reciprocating stroke of the sector tooth 10 can be changed. The closer the bearing seat 57 is to the axis of the weft insertion gear 6, the shorter the reciprocating stroke of the sector tooth 10. The protrusion 55 can be integrally injection molded with the weft insertion gear 6. The pressing block 59 and the protrusion 55 are both provided with screw holes for the screw 61 to pass through. When the position of the rotating arm 7 needs to be adjusted, the screw 61 is loosened to separate the pressing block 59 from the protrusion 55, and the connecting arm 58 is moved to a suitable position along the slide groove 56, and the second inclined surface of the pressing block 59 is pressed again on the upper surface of the first inclined surface 60, and the screw 61 is tightened to fix the rotating arm 7 on the protrusion 55.

[0037] It is understandable that the specific embodiments described above are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradictions or conflicts. All equivalent structural transformations made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, are similarly included in the protection scope of the present invention.

Claims

1. A jacquard open rapier loom, characterized in that: It includes a jacquard opening transmission mechanism, a weft cutting mechanism, at least two sets of weft beating mechanisms and two sets of weft insertion mechanisms, wherein: The beating mechanism comprises a base, a wheel shaft, a beating cam, a roller and a pressure arm, wherein the wheel shaft is rotatably mounted on the base, the wheel shaft is coaxially fixedly connected to the beating cam, the roller is coaxially fixedly connected to the pressure arm, the beating cam and the roller are rollingly matched, a plurality of groups of the beating mechanisms are sequentially arranged along the length direction of the base, the rotating shaft is coaxially connected to the adjacent rotating shaft through a coupling, the beating mechanisms located at both ends of the base are respectively connected to the weft insertion mechanisms, one group of the weft insertion mechanisms is connected to the jacquard opening transmission mechanism, and the other group of the weft insertion mechanisms is connected to the weft cutting mechanism; The weft insertion mechanism includes a power shaft, a weft insertion gear, a rotating arm, a rocker arm, a cross shaft and a sector tooth, one end of the power shaft is coaxially fixedly connected to the wheel shaft, the other end of the power shaft is coaxially fixedly connected to the weft insertion gear, the rotating arm is eccentrically mounted on the end face of the gear, the rocker arm is rotatably connected to the rotating arm, and the rotation axis of the rocker arm does not coincide with the rotation axis of the rotating arm, the cross shaft is rotatably connected to the rocker arm, and the sector tooth is fixedly connected to one side of the cross shaft; The jacquard opening transmission mechanism includes a driving gear, an opening gear, a first transmission shaft, a first conical wheel, a second transmission shaft and a second conical wheel. The opening gear is respectively meshed with the driving gear and the weft insertion gear. The driving gear is connected to a rotating motor. One end of the first transmission shaft is coaxially connected to the opening gear, one end of the first transmission shaft is coaxially connected to the first conical wheel, the first conical wheel is meshed with the second conical wheel, one end of the second transmission shaft is coaxially connected to the second conical wheel, and the other end of the second transmission shaft is used to connect the jacquard mechanism.

2. The jacquard open rapier loom according to claim 1, characterized in that: The driving gear is coaxially connected to the third transmission shaft, one end of the third transmission shaft is connected to the rotating motor, the other end of the third transmission shaft passes through the driving gear and is connected to a brake assembly, the brake assembly comprises an elastic member, a brake disc, a brake disc and an electromagnet, the electromagnet, the elastic member, the brake disc, the friction plate and the open gear are arranged in sequence along the axial direction of the third transmission shaft, one end of the elastic member is connected to the electromagnet, the other end of the elastic member is connected to the brake disc, the brake disc is movably abutted against the friction plate, and there is a gap between the friction plate and the open gear.

3. The jacquard open rapier loom according to claim 1, characterized in that: The weft cutting assembly includes a weft cutting gear, a weft cutting cam, a transmission arm, a mounting seat, a fixed blade, a movable blade, a first screw, a first nut and a first spring. The weft cutting gear is meshed with the weft insertion gear, and the weft cutting gear is connected to the weft cutting cam through a fourth transmission shaft. One end of the transmission arm is in contact with the weft beating cam, and the other end of the transmission arm is connected to the movable blade. The two ends of the transmission arm are hinged to the mounting seat, the first screw passes through the movable blade and the fixed blade in sequence and is threadedly connected to the first nut, the first spring is sleeved on the outer peripheral wall of the first screw, one end of the first spring abuts against the movable blade, and the other end of the first spring abuts against the first nut.

4. The jacquard open rapier loom according to claim 3, characterized in that: The mounting seat is fixedly mounted with a support plate, a knife seat is movably provided at the end of the support plate, the fixed blade is fixedly mounted on the knife seat, the support plate is provided with an arc hole, the knife seat is connected to the support plate through a second screw rod, and the second screw rod passes through the arc hole, the knife seat and the second nut thread in sequence.

5. The jacquard open rapier loom according to claim 4, characterized in that: The transmission arm includes a first swing arm, a second swing arm and a transmission rod which are connected in sequence, the first swing arm is hinged to the mounting seat, one end of the second swing arm is connected to the first swing arm at an angle, and the other end of the second swing arm is connected to the transmission rod at an angle, the fixed blade is provided with a groove for the transmission rod to pass through, and the movable blade is provided with a through hole which matches the clearance of the transmission rod.

6. The jacquard open rapier loom according to claim 5, characterized in that: The first swing arm is in contact with the weft cutting cam, the first swing arm is installed on the mounting seat through a rotating shaft, the rotating shaft is fixedly connected to the mounting seat, the first swing arm is provided with a through hole that cooperates with the rotating shaft for rotation, one end of the support plate is provided with the knife seat, the other end of the support plate is provided with a second spring, one end of the second spring is connected to the support plate, the other end of the second spring is connected to an end of the first swing arm away from the second swing arm, the first swing arm is rotatably provided with a roller, and the roller is in rolling contact with the weft cutting cam.

7. The jacquard open rapier loom according to claim 6, characterized in that: The support plate is provided with a third screw, the third screw passes through the support plate and is threadedly matched with a third nut, the third screw thread is threadedly matched with a fourth nut, the third nut and the fourth nut clamp the support plate, and the end of the second spring away from the first swing arm is fixedly connected to the third screw.

8. The jacquard sheathed rapier loom according to claim 1, characterized in that: The rocker arm includes a first connecting arm and a second connecting arm connected to the first connecting arm at an angle, the first connecting arm is rotatably connected to the rotating arm through a first bearing, the second connecting arm includes a first connecting end and a second connecting end arranged corresponding to the first connecting end, the cross shaft is rotatably connected to the first connecting end through a second bearing, and the cross shaft is rotatably connected to the second connecting end through a third bearing.

9. The jacquard open rapier loom according to claim 8, characterized in that: The cross shaft includes a first connecting shaft, a second connecting shaft, a third connecting shaft and a fourth connecting shaft, the first connecting shaft is coaxially connected to the second connecting shaft, the third connecting shaft is coaxially connected to the fourth connecting shaft, the first connecting shaft and the third connecting shaft are arranged at an angle, the first connecting shaft is rotatably connected to the first connecting end through the second bearing, the second connecting shaft is rotatably connected to the second connecting end through the third bearing, the third connecting shaft is rotatably mounted on the weft insertion box through the fourth bearing, and the fourth connecting shaft is rotatably mounted on the weft insertion box through the fifth bearing.

10. The jacquard open rapier loom according to claim 8, characterized in that: A protrusion is provided on the side of the weft insertion gear facing the rotating arm, and the protrusion is provided with a slide groove. The rotating arm includes a bearing seat and a connecting arm integrally connected to the bearing seat, the first bearing is arranged inside the bearing seat, the bottom surface of the connecting arm is slidably connected to the slide groove, the protrusion is provided with a pressure block, and the side wall of the connecting arm is provided with a first inclined surface along the length direction, the pressure block is provided with a second inclined surface matching the first inclined surface, the second inclined surface is pressed on the upper surface of the second inclined surface, and the pressure block is mounted on the protrusion by screws.

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