Selvage opening device of rapier loom

Abstract

The utility model relates to the field of rapier looms, and discloses a selvage opening device of a rapier loom, which comprises a workbench and a triangular cutter, the top of the workbench is provided with a rolling mechanism used for guiding cloth, the top of the workbench is fixedly connected with a portal frame, the top of the triangular cutter is fixedly connected with a mounting plate, and the triangular cutter is fixedly connected with the portal frame. An opening width adjusting mechanism is arranged between the mounting plate and the portal frame, pressing plates are arranged on the two sides of the mounting plate, and downward pressing fixing mechanisms are arranged between the pressing plates and the mounting plate. Compared with the prior art, the cloth opening device has the advantages that cloth can be pressed down and fixed firstly, then opening operation is carried out, the situation that the opening precision is reduced due to the fact that the cloth shifts and shakes is avoided, meanwhile, the downward moving distance of the triangular cutter can be accurately adjusted and controlled according to needs, the opening size can be adjusted and controlled, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rapier looms, in particular to a cloth edge opening device of a 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. Rapier loom is the primary link of cloth production. After the cloth production is completed, it needs to be opened to facilitate the subsequent zipper installation, cloth interception and other processes. After searching: Patent No. CN210826561U is a kind of cloth edge opening device of rapier loom, including hydraulic device, base, encoder, sliding sleeve and stepping motor, one side of the upper end face of the base is fixed with a workbench, the upper side of the front end face of the workbench is provided with a through groove, the upper end face of the workbench is provided with an opening groove, the middle of both sides of the front end face of the workbench is fixed with a first fixed block, and a winding shaft is rotatably installed between the first fixed blocks, the hydraulic device is fixed on the base, the upper end of the hydraulic device is fixed with a mounting seat, a connecting rod is fixed between the two mounting seats, and the sliding sleeve is slidably installed on the connecting rod. And a cloth edge opening device for a rapier loom with patent number CN216473740U, including an operating table, an opening mold positioning mechanism is provided on the surface of the operating table, the opening mold positioning mechanism includes a base, limit blocks are provided on both sides of the base, the limit blocks are used to clamp the opening mold, an opening groove is provided in the center of the opening mold, a photoelectric sensor is provided on one side of the inner cavity of the opening groove, the photoelectric sensor is arranged on the outside of the electric wire through a hose sleeve, passes through the surface of the operating table and is connected to the control center.

[0003] However, the cloth edge opening device of the rapier loom mentioned above still has some shortcomings. The cloth is placed on the workbench without being effectively fixed, which makes the cloth easy to move and shake when opening, thereby reducing the accuracy of the opening. At the same time, it is inconvenient to adjust the size of the opening according to needs, which reduces the versatility of the device. Therefore, we propose a cloth edge opening device for a rapier loom to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a cloth edge opening device for a rapier loom, which can first press down and fix the cloth, and then perform the opening operation, so as to avoid displacement and shaking of the cloth and reduce the opening accuracy. At the same time, according to needs, the downward movement distance of the triangular cutter can be accurately adjusted, and then the size of the opening can be adjusted, thereby improving the versatility of the device.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: it includes a workbench and a triangular cutter, the top of the workbench is provided with a mechanism for guiding and winding the cloth, the top of the workbench is fixedly connected with a gantry, the top of the triangular cutter is fixedly connected with a mounting plate, an opening width adjustment mechanism is provided between the mounting plate and the gantry, pressure plates are provided on both sides of the mounting plate, and a downward pressing and fixing mechanism is provided between the pressure plate and the mounting plate.

[0006] The utility model is further configured as follows: the guide winding mechanism includes two support plates fixedly connected to the top of the workbench, the front side of the front support plate is fixedly connected to a winding motor, a winding roller is fixedly connected to the output shaft of the winding motor, the winding roller is rotatably connected between the two support plates, the guide winding mechanism also includes two guide rollers rotatably connected to the top of the workbench, and the gantry is located between the two guide rollers.

[0007] By adopting the above technical solution, the cloth is passed under the two guide rollers and wrapped around the outside of the winding roller. The winding roller is driven to rotate by the winding motor. Under the guidance of the guide roller, the cloth can be wound. After each winding of a certain length, the winding motor is turned off to open the cloth. When the opening is completed, the cloth is continued to be wound for a certain length to achieve equal-pitch opening.

[0008] The utility model is further configured as follows: the opening width adjustment mechanism includes a threaded barrel rotatably connected to the top of the gantry and a driving motor fixedly connected to the top of the gantry, the output shaft of the driving motor is fixedly connected to a driving shaft, the bottom end of the driving shaft is fixedly connected to a driving tooth, the outer fixed sleeve of the threaded barrel is provided with a driven tooth, the driving tooth is meshed with the driven tooth, the inner threaded sleeve of the threaded barrel is provided with a lifting screw, the mounting plate is fixedly connected to the bottom end of the lifting screw, and the bottom of the top plate is fixedly connected to a displacement sensor.

[0009] By adopting the above technical solution, the driving motor is started, and the driving motor drives the rotation of the driving shaft and the active gear, and the active gear drives the rotation of the driven gear and the threaded barrel. Under the guidance of the guide rod, the threaded barrel drives the lifting screw, the mounting plate and the pressure plate to move downward, and the mounting plate drives the triangular cutter to move downward to cut the cloth. According to the requirements of the front and rear width of the opening, the deeper the cutting depth of the triangular cutter moves downward, the larger the opening of the cloth is. Through the setting of the displacement sensor, the downward distance of the top plate and the lifting screw can be measured. When the requirements of the front and rear width of the opening are met, the depth of the downward cutting can be calculated. When the downward distance measured by the displacement sensor reaches the depth of the downward cutting, the displacement sensor sends a signal to the controller, and the controller closes the driving motor in time, thereby adjusting the size of the opening, thereby improving the versatility of the device.

[0010] The utility model is further configured as follows: two through holes are provided on the top of the gantry, guide rods are slidably sleeved in the two through holes, the two guide rods are fixedly connected to the top of the mounting plate, and the two guide rods and the top end of the lifting screw rod are fixedly connected to the same top plate.

[0011] By adopting the above technical solution, it is convenient to guide the installation plate, so that its lifting and lowering is more stable.

[0012] The utility model is further configured as follows: a bearing is fixedly connected to the top of the gantry, and the threaded tube is fixedly sleeved in the inner ring of the bearing.

[0013] By adopting the above technical solution, it is convenient to support the threaded barrel, making its rotation more stable and smooth.

[0014] The utility model is further configured as follows: the downward pressing fixing mechanism includes two sleeves, the four sleeves are respectively fixedly connected to the two sides of the mounting plate, an extrusion spring is fixedly connected to the top inner wall of the sleeve, a slide is fixedly connected to the bottom end of the extrusion spring, a connecting plate is fixedly connected to the bottom of the slide, and the pressure plate is fixedly connected to the bottom of the two connecting plates.

[0015] By adopting the above technical solution, since the height of the pressing plate is lower than the height of the triangular cutter, when moving downward, the pressing plate first abuts against the top of the cloth and continues to move downward. At this time, the extrusion spring is compressed. Under the reaction force of the extrusion spring, the pressing plate can firmly press down and fix the two sides of the opening position of the cloth, thereby ensuring the stability during opening and improving the quality and accuracy of the opening.

[0016] The utility model is further configured as follows: the slide plate and the connecting plate are both slidably sleeved in the sleeve box.

[0017] By adopting the above technical solution, it is convenient to guide the slide plate and the connecting plate, so that the lifting and lowering of the pressure plate is more stable.

[0018] The utility model is further configured as follows: the triangular cutter is fixedly connected to the bottom of the mounting plate by bolts, and an open slot is provided on the top of the workbench, and the open slot corresponds to the triangular cutter up and down.

[0019] By adopting the above technical solution, the regular disassembly, maintenance and replacement of the triangular cutter is facilitated, and the downward movement and opening operation of the triangular cutter is not hindered.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model passes the cloth under two guide rollers and is wound around the outside of the winding roller. The winding roller is driven to rotate by the winding motor. Under the guidance of the guide roller, the cloth can be wound. After each winding of a certain length, the winding motor is turned off to open the cloth. When the opening is completed, the cloth is continued to be wound for a certain length to achieve equal spacing opening operation.

[0022] 2. The utility model starts the driving motor, and the driving motor drives the rotation of the driving shaft and the active gear, and the active gear drives the rotation of the driven gear and the threaded barrel. Under the guidance of the guide rod, the threaded barrel drives the lifting screw, the mounting plate and the pressure plate to move downward, and the mounting plate drives the triangular cutter to move downward to cut the cloth. According to the requirements of the front and rear widths of the opening, the deeper the cutting depth of the triangular cutter moves downward, the larger the opening of the cloth is. Through the setting of the displacement sensor, the downward distance of the top plate and the lifting screw can be measured. When the requirements of the front and rear width of the opening are met, the depth of the downward cutting can be calculated. When the downward distance measured by the displacement sensor reaches the depth of the downward cutting, the displacement sensor sends a signal to the controller, and the controller closes the driving motor in time, thereby adjusting the size of the opening, thereby improving the versatility of the device.

[0023] 3. In the utility model, since the height of the pressing plate is lower than the height of the triangular cutter, when it moves downward, the pressing plate first contacts the top of the cloth and continues to move downward. At this time, the extrusion spring is compressed. Under the reaction force of the extrusion spring, the pressing plate can firmly press down and fix the two sides of the opening position of the cloth, thereby ensuring the stability of the opening and improving the quality and accuracy of the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A first-perspective stereoscopic view of a cloth edge opening device of a rapier loom proposed by the utility model;

[0026] Figure 2 A second perspective stereogram of a cloth edge opening device of a rapier loom proposed by the utility model;

[0027] Figure 3 It is a cross-sectional view of a cloth edge opening device of a rapier loom proposed by the utility model;

[0028] Figure 4 for Figure 3 The structural diagram of part A in the figure;

[0029] Figure 5 The utility model is a three-dimensional diagram of a triangular cutter of a cloth edge opening device of a rapier loom.

[0030] In the figure, 1, workbench; 2, opening slot; 3, support plate; 4, winding motor; 5, winding roller; 6, guide roller; 7, pressure plate; 8, connecting plate; 9, sleeve box; 10, driving motor; 11, threaded cylinder; 12, lifting screw rod; 13, guide rod; 14, top plate; 15, gantry; 16, displacement sensor; 17, triangular cutter; 18, mounting plate; 19, extrusion spring; 20, slide plate; 21, active gear; 22, driven gear; 23, driving shaft. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1 — Figure 5 The utility model provides a cloth edge opening device for a rapier loom, comprising a workbench 1 and a triangular cutter 17. A mechanism for guiding and winding cloth is arranged on the top of the workbench 1. A gantry 15 is fixedly connected to the top of the workbench 1. A mounting plate 18 is fixedly connected to the top of the triangular cutter 17. An opening width adjustment mechanism is arranged between the mounting plate 18 and the gantry 15. Pressing plates 7 are arranged on both sides of the mounting plate 18. A downward pressing fixing mechanism is arranged between the pressing plate 7 and the mounting plate 18.

[0033] Specifically, the guide winding mechanism includes two support plates 3 fixedly connected to the top of the workbench 1, the front side of the front support plate 3 is fixedly connected to a winding motor 4, the output shaft of the winding motor 4 is fixedly connected to a winding roller 5, and the winding roller 5 is rotatably connected between the two support plates 3.

[0034] Specifically, the guide winding mechanism also includes two guide rollers 6 rotatably connected to the top of the workbench 1 , and the gantry 15 is located between the two guide rollers 6 .

[0035] Specifically, the opening width adjustment mechanism includes a threaded barrel 11 rotatably connected to the top of the gantry 15 and a driving motor 10 fixedly connected to the top of the gantry 15, a driving shaft 23 is fixedly connected to the output shaft of the driving motor 10, a driving tooth 21 is fixedly connected to the bottom end of the driving shaft 23, a driven tooth 22 is fixedly provided on the outer fixed sleeve of the threaded barrel 11, the driving tooth 21 is meshed with the driven tooth 22, a lifting screw 12 is provided on the inner threaded sleeve of the threaded barrel 11, and a mounting plate 18 is fixedly connected to the bottom end of the lifting screw 12.

[0036] Specifically, two through holes are opened on the top of the gantry 15, and guide rods 13 are slidably sleeved in the two through holes. The two guide rods 13 are fixedly connected to the top of the mounting plate 18, and the two guide rods 13 and the top of the lifting screw rod 12 are fixedly connected to the same top plate 14.

[0037] Specifically, a displacement sensor 16 is fixedly connected to the bottom of the top plate 14 .

[0038] Specifically, a bearing is fixedly connected to the top of the gantry 15, and the threaded tube 11 is fixedly sleeved in the inner ring of the bearing.

[0039] Specifically, the downward pressing fixing mechanism includes two sleeve boxes 9, and the four sleeve boxes 9 are respectively fixedly connected to the two sides of the mounting plate 18. An extrusion spring 19 is fixedly connected to the top inner wall of the sleeve box 9, and a slide plate 20 is fixedly connected to the bottom of the extrusion spring 19. The bottom of the slide plate 20 is fixedly connected to the connecting plate 8, and the pressure plate 7 is fixedly connected to the bottom of the two connecting plates 8.

[0040] Specifically, the slide plate 20 and the connecting plate 8 are both slidably sleeved in the sleeve box 9 .

[0041] Specifically, the triangular cutter 17 is fixedly connected to the bottom of the mounting plate 18 by bolts, and an opening groove 2 is provided on the top of the workbench 1 , and the opening groove 2 corresponds to the triangular cutter 17 up and down.

[0042] When the utility model is in use, the cloth is passed under the two guide rollers 6 and is wound around the outer side of the winding roller 5. The winding motor 4 drives the winding roller 5 to rotate. Under the guidance of the guide roller 6, the cloth can be wound. After each winding of a certain length, the winding motor 4 is turned off and the driving motor 10 is started. The driving motor 10 drives the driving shaft 23 and the active gear 21 to rotate. The active gear 21 drives the driven gear 22 and the threaded cylinder 11 to rotate. Under the guidance of the guide rod 13, the threaded cylinder 11 drives the lifting screw rod 12, the mounting plate 18 and the pressing plate 7 to move downward. Because the height of the pressing plate 7 is lower than the height of the triangular cutter 17, when moving downward, the pressing plate 7 first contacts the top of the cloth and continues to move downward. At this time, the extrusion spring 19 is compressed. Under the reaction force of the extrusion spring 19, the pressing plate can firmly press and fix the two sides of the cloth opening position, thereby ensuring the opening. The stability of the opening is improved, the quality and accuracy of the opening are improved, and then the drive motor 10 is started again, so that the triangular cutter 17 continues to move downward to cut the cloth. According to the requirements of the front and rear widths of the opening, the deeper the cutting depth of the triangular cutter 17 moves downward, the larger the opening of the cloth is. Through the setting of the displacement sensor 16, the downward movement distance of the top plate 14 and the lifting screw rod 12 can be measured. When the requirements of the front and rear widths of the opening are met, the depth of the downward movement and cutting can be converted. When the downward movement distance measured by the displacement sensor 16 reaches the depth of the downward movement and cutting, the displacement sensor 16 sends a signal to the controller (not shown in the figure), and then the controller turns off the drive motor 10 in time, and then the size of the opening can be adjusted to improve the versatility of the device. Due to the setting of the extrusion spring 19, the connecting plate 8 and the pressing plate 7 automatically move upward, and thus do not hinder the normal opening operation of the triangular cutter 17.

Claims

1. A cloth edge opening device for a rapier loom, characterized in that: The invention comprises a workbench (1) and a triangular cutter (17); a mechanism for guiding and winding fabric is arranged on the top of the workbench (1); a gantry (15) is fixedly connected to the top of the workbench (1); a mounting plate (18) is fixedly connected to the top of the triangular cutter (17); an opening width adjustment mechanism is arranged between the mounting plate (18) and the gantry (15); pressing plates (7) are arranged on both sides of the mounting plate (18); and a downward pressing fixing mechanism is arranged between the pressing plate (7) and the mounting plate (18).

2. The cloth edge opening device of a rapier loom according to claim 1, characterized in that: The guide winding mechanism comprises two support plates (3) fixedly connected to the top of the workbench (1); a winding motor (4) is fixedly connected to the front side of the front support plate (3); a winding roller (5) is fixedly connected to the output shaft of the winding motor (4); and the winding roller (5) is rotatably connected between the two support plates (3).

3. The cloth edge opening device of a rapier loom according to claim 1, characterized in that: The guide winding mechanism also includes two guide rollers (6) rotatably connected to the top of the workbench (1), and the gantry (15) is located between the two guide rollers (6).

4. The cloth edge opening device of a rapier loom according to claim 1, characterized in that: The opening width adjustment mechanism comprises a threaded barrel (11) rotatably connected to the top of the gantry (15) and a driving motor (10) fixedly connected to the top of the gantry (15); a driving shaft (23) is fixedly connected to the output shaft of the driving motor (10); a driving tooth (21) is fixedly connected to the bottom end of the driving shaft (23); a driven tooth (22) is fixedly sleeved on the outer side of the threaded barrel (11); the driving tooth (21) meshes with the driven tooth (22); a lifting screw rod (12) is internally threadedly sleeved on the threaded barrel (11); and the mounting plate (18) is fixedly connected to the bottom end of the lifting screw rod (12).

5. The cloth edge opening device of a rapier loom according to claim 4, characterized in that: The top of the gantry (15) is provided with two through holes, and guide rods (13) are slidably sleeved in the two through holes. The two guide rods (13) are fixedly connected to the top of the mounting plate (18), and the two guide rods (13) and the top of the lifting screw rod (12) are fixedly connected to the same top plate (14).

6. The cloth edge opening device of a rapier loom according to claim 5, characterized in that: A displacement sensor (16) is fixedly connected to the bottom of the top plate (14).

7. The cloth edge opening device of a rapier loom according to claim 4, characterized in that: A bearing is fixedly connected to the top of the gantry (15), and the threaded cylinder (11) is fixedly sleeved in the inner ring of the bearing.

8. The cloth edge opening device of a rapier loom according to claim 1, characterized in that: The downward pressing fixing mechanism comprises two sleeve boxes (9), the four sleeve boxes (9) are respectively fixedly connected to the two sides of the mounting plate (18), the top inner wall of the sleeve boxes (9) is fixedly connected to an extrusion spring (19), the bottom end of the extrusion spring (19) is fixedly connected to a slide plate (20), the bottom of the slide plate (20) is fixedly connected to a connecting plate (8), and the pressing plate (7) is fixedly connected to the bottom of the two connecting plates (8).

9. The cloth edge opening device of a rapier loom according to claim 8, characterized in that: The slide plate (20) and the connecting plate (8) are both slidably sleeved in the sleeve box (9).

10. The cloth edge opening device of a rapier loom according to claim 1, characterized in that: The triangular cutter (17) is fixedly connected to the bottom of the mounting plate (18) by means of bolts. An opening groove (2) is provided on the top of the workbench (1), and the opening groove (2) corresponds to the triangular cutter (17) in upper and lower positions.

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