Yarn tensioning device for rapier loom

Abstract

The utility model discloses a yarn tensioning device for a rapier loom, which relates to the field of rapier looms and comprises a side plate, an adjusting component is mounted on the front portion of the side plate, a pressing component is mounted on the front portion of the adjusting component, the adjusting component comprises a rotating plate and a supporting plate, the rotating plate is movably mounted on one side of the front portion of the side plate, and the supporting plate is movably mounted on the other side of the front portion of the side plate. The supporting plate is movably installed at the tail end of the rotating plate, a rotating rod is movably installed in the rotating plate in a penetrating mode, a worm gear is installed at one end of the rotating rod, a worm is movably installed on the periphery of the worm gear, a screw is installed at the other end of the rotating rod and penetrates the supporting plate, and two guide rods are fixedly installed at the tail end of the rotating plate. A shaft rod is fixedly mounted at the front part, close to the tail end, of the supporting plate; the tension of the roller shaft can be conveniently adjusted by changing the horizontal direction and different angles, the roller shaft can be automatically fixed after being adjusted, meanwhile, yarn knotting and winding caused by rotation of the roller shaft can be prevented, and a yarn roll can be conveniently installed and replaced.

Description

Technical Field

[0001] The utility model relates to the field of rapier looms, in particular to a yarn tensioning device for rapier looms. Background Art

[0002] The rapier loom is a mechanical device used to weave cloth. Its working principle is to weave the yarns together by the shuttle shuttling between the warp and weft lines to form cloth. During the yarn feeding process, the tension of the yarn needs to be controlled to ensure that the yarn maintains appropriate tension during the weaving process. This solution specifically relates to a yarn tensioning device for a rapier loom;

[0003] When the existing rapier loom yarn tensioning device is in use, it is not convenient to perform tension adjustment horizontally and at multiple angles, and it is not convenient to automatically fix the yarn after adjustment because the tension needs to be additionally fixed after the tension is adjusted. The yarn is easily tangled and entangled when the yarn roll is rotated, and it is not convenient to press at different angles, which has a certain impact on actual use. Utility Model Content

[0004] The main purpose of the utility model is to provide a yarn tensioning device for a rapier loom, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A yarn tensioning device for a rapier loom comprises a side plate, an adjusting assembly is installed at the front of the side plate, a pressing assembly is installed at the front of the adjusting assembly, the adjusting assembly comprises a rotating plate rotatably connected to the side plate, a supporting plate is movably installed on the rotating plate, a rotating rod is movably installed through the interior of the rotating plate, a worm gear is installed at one end of the rotating rod, a worm gear is meshedly connected to the worm, the other end of the rotating rod passes through the interior of the supporting plate and is installed with a screw, a shaft rod is fixedly installed at the front end of the supporting plate, and a peripheral movable sleeve of the shaft rod is provided. A roller shaft is connected, and a first arc groove and a second arc groove are respectively provided through the front and rear parts of the side plate, an adjusting knob is installed at the rear end of the worm and in the first arc groove, and the worm and the adjusting knob rotate synchronously, a fixing rod is fixedly installed at the rear end of the rotating plate and in the second arc groove, a first movable shaft is movably sleeved on the periphery of the fixing rod, a second movable shaft is movably installed at the rear end of the side plate near the top end, an adjusting rod is movably installed between the inside of the second movable shaft and the top of the first movable shaft, and a knob is fixedly installed on the top end of the adjusting rod.

[0007] As a further solution of the utility model, the rotating plate is connected to the front of the side plate through a rotating shaft and is movably rotatable, the worm wheel and the worm are meshingly connected, and the screw passes through the interior of the support plate and is threadedly connected.

[0008] As a further solution of the utility model, the guide rod penetrates the interior of the support plate and is slidably arranged, and the screw rod, the rotating rod and the worm gear are synchronously rotated.

[0009] As a further solution of the utility model, the adjusting rod passes through the interior of the second movable shaft and is movably rotatable, and the bottom end of the adjusting rod passes through the interior of the first movable shaft and is connected via a bearing.

[0010] As a further solution of the utility model, the clamping assembly includes two lifting seats and a connecting rod, the connecting rod is fixedly installed between the tops of the lifting seats, and the bottoms of the two lifting seats are respectively installed with positioning shafts and clamping seats, a positioning hole is opened at the front end of the shaft rod, and a positioning bolt is connected to the positioning hole by passing through the interior of the positioning shaft, and shaft blocks are movably installed inside the two lifting seats, a spring is installed on the top of the shaft blocks, and a pressure roller is movably installed between the two shaft blocks.

[0011] As a further solution of the utility model, the positioning shaft and the clamping seat are respectively located at the front end and the outside of the shaft rod in a clamping arrangement, and the positioning bolt is threadedly connected to the positioning hole.

[0012] As a further solution of the utility model, the shaft block and the spring are sleeved on the periphery of the rod column inside the lifting seat and are arranged to slide up and down, and the pressure roller is located between the two shaft blocks and is arranged to rotate movably.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting the adjustment component, the worm drives the worm wheel to rotate, so that the screw drives the support plate to slide, which is convenient for the tension adjustment of the roller shaft. By rotating the adjustment rod, the adjustment rod passes through the second movable shaft through the thread and slides, driving the rotating plate to rotate and fix, which is convenient for the change of the angle position to adjust the tension, and can be automatically fixed after adjustment;

[0015] By setting up a clamping assembly, the shaft block slides downward under the action of the spring, so that the pressure roller always presses the yarn roll tightly, which can prevent the roller shaft from rotating and causing the yarn to be knotted and entangled. Through the clamping and installation of the positioning shaft, the positioning bolt is connected to the positioning hole for fixation, which facilitates the installation and replacement of the yarn roll and can perform compression at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a yarn tensioning device for a rapier loom according to the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of an adjusting component used in a yarn tensioning device of a rapier loom according to the utility model;

[0018] Figure 3This is a schematic diagram of the rear structure of an adjusting component used in a yarn tensioning device of a rapier loom according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the disassembled structure of a pressing component used in a yarn tensioning device of a rapier loom.

[0020] In the figure: 1. side plate; 2. adjustment assembly; 3. clamping assembly; 4. rotating plate; 5. supporting plate; 6. rotating rod; 7. worm gear; 8. worm; 9. screw; 10. guide rod; 11. shaft rod; 12. roller shaft; 13. first arc groove; 14. second arc groove; 15. adjustment button; 16. fixing rod; 17. first movable shaft; 18. second movable shaft; 19. adjustment rod; 20. knob; 21. lifting seat; 22. connecting rod; 23. positioning shaft; 24. holder; 25. positioning hole; 26. positioning bolt; 27. shaft block; 28. spring; 29. ​​pressure roller. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, a yarn tensioning device for a rapier loom comprises a side plate 1, an adjusting assembly 2 is installed at the front of the side plate 1, a pressing assembly 3 is installed at the front of the adjusting assembly 2, the adjusting assembly 2 comprises a rotating plate 4 and a supporting plate 5, the rotating plate 4 is movably installed at the front side of the side plate 1, the supporting plate 5 is movably installed at the end of the rotating plate 4, a rotating rod 6 is movably installed inside the rotating plate 4, a worm gear 7 is installed at one end of the rotating rod 6, a worm 8 is movably installed on the periphery of the worm gear 7, a screw 9 is installed at the other end of the rotating rod 6 and inside the supporting plate 5, two guide rods 10 are fixedly installed at the end of the rotating plate 4, and a shaft rod 11 is fixedly installed at the front end of the supporting plate 5. The outer periphery of the shaft 11 is movably sleeved with a roller shaft 12, and the front and rear parts of the side plate 1 are respectively provided with a first arc groove 13 and a second arc groove 14, an adjusting button 15 is installed at the rear end of the worm 8 and located in the first arc groove 13, and the worm 8 and the adjusting button 15 rotate synchronously, and a fixing rod 16 is fixedly installed at the rear end of the rotating plate 4 and located in the second arc groove 14, and a first movable shaft 17 is movably sleeved on the outer periphery of the fixing rod 16, and a second movable shaft 18 is movably installed at the rear end of the side plate 1, and an adjusting rod 19 is movably installed between the inside of the second movable shaft 18 and the top of the first movable shaft 17, and a knob 20 is fixedly installed on the top of the adjusting rod 19.

[0023] In this embodiment, the rotating plate 4 is connected to the front of the side plate 1 through the rotating shaft and is arranged to rotate flexibly. The worm wheel 7 and the worm 8 are meshingly connected. The screw 9 passes through the interior of the support plate 5 and is threadedly connected. The worm wheel 7 is driven by the worm 8 to rotate, so that the rotating rod 6 and the screw 9 rotate synchronously, so that the extension and contraction of the support plate 5 can be tensioned and adjusted.

[0024] In this embodiment, the guide rod 10 penetrates the interior of the support plate 5 and is arranged to slide. The screw 9, the rotating rod 6 and the worm gear 7 are arranged to rotate synchronously. The screw 9 rotates and causes the support plate 5 to slide under the action of the thread. The sliding of the guide rod 10 prevents the support plate 5 from rotating.

[0025] In this embodiment, the adjusting rod 19 passes through the interior of the second movable shaft 18 and is arranged to be movable and rotatable. The bottom end of the adjusting rod 19 passes through the interior of the first movable shaft 17 and is connected by a bearing. The adjusting rod 19 is rotated by rotating the knob 20, and slides through the second movable shaft 18 through a thread. The rotating plate 4 is driven to rotate through the fixed rod 16 to adjust the angle.

[0026] In this embodiment, the clamping assembly 3 includes two lifting seats 21 and a connecting rod 22. The connecting rod 22 is fixedly installed between the tops of the lifting seats 21. The bottoms of the two lifting seats 21 are respectively installed with positioning shafts 23 and clamping seats 24. A positioning hole 25 is opened at the front end of the shaft rod 11. A positioning bolt 26 is connected to the interior of the positioning shaft 23 and located in the positioning hole 25. A shaft block 27 is movably installed inside the two lifting seats 21. A spring 28 is installed on the top of the shaft block 27. A pressure roller 29 is movably installed between the two shaft blocks 27. The yarn roll sleeved on the outside of the roller shaft 12 is pressed by the pressure roller 29 to prevent rotation and entanglement.

[0027] In this embodiment, the positioning shaft 23 and the clamping seat 24 are respectively located at the front end and the outside of the shaft 11 and are clamped. The positioning bolt 26 is threadedly connected to the positioning hole 25. Through the connection of the positioning bolt 26 and the clamping seat 24, the two lifting seats 21 are fixed, and the yarn roll sleeved on the outer periphery of the roller shaft 12 is positioned.

[0028] In this embodiment, the shaft block 27 and the spring 28 are sleeved on the outer periphery of the rod column inside the lifting seat 21 and are arranged to slide up and down. The pressure roller 29 is located between the two shaft blocks 27 and is arranged to rotate movably. The shaft block 27 slides downward through the spring 28, so that the pressure roller 29 always presses the yarn roll tightly to prevent rotation, entanglement and knotting.

[0029] It should be noted that the utility model is a yarn tensioning device for a rapier loom. When in use, the yarn reel is sleeved on the outer periphery of the roller shaft 12, and the yarn is connected to the rapier loom for wire feeding. When adjusting the yarn tension, the adjusting knob 15 is rotated by using a tool to make the worm 8 drive the worm wheel 7 to rotate, and at the same time drive the rotating rod 6 and the screw 9 to rotate. The support plate 5 slides under the rotation of the screw 9 and the action of the thread, so that the position distance of the roller shaft 12 changes. When it is necessary to adjust the angle of the roller shaft 12, the knob 20 is rotated to make the adjusting rod 19 rotate and slide through the inside of the second movable shaft 18 under the action of the thread, so that the first movable shaft 17 drives the rotating plate 4 to rotate, and then the angle position of the roller shaft 12 is changed for tension adjustment. During the yarn feeding process, the shaft block 27 slides downward through the spring 28, so that the pressure roller 29 presses the yarn reel to prevent the roller shaft 12 from rotating and causing the yarn to knot.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A yarn tensioning device for a rapier loom, comprising a side plate (1), an adjusting assembly (2) being installed at the front of the side plate (1), and a pressing assembly (3) being installed at the front of the adjusting assembly (2), characterized in that: The adjustment assembly (2) comprises a rotating plate (4) rotatably connected to the side plate (1), a support plate (5) movably mounted on the rotating plate (4), a rotating rod (6) movably mounted inside the rotating plate (4), a worm gear (7) mounted on one end of the rotating rod (6), a worm gear (8) meshingly connected to the worm gear (7), the other end of the rotating rod (6) passes through the inside of the support plate (5) and is mounted with a screw rod (9), a shaft rod (11) is fixedly mounted on the front end of the support plate (5), a roller shaft (12) is movably sleeved on the periphery of the shaft rod (11), and a first arc groove (13) and a second arc groove (13) are respectively formed on the front and rear parts of the side plate (1). A first arc groove (14) is formed on the rear end of the worm (8) and is located in the first arc groove (13). An adjusting button (15) is installed at the rear end of the worm (8) and is located in the first arc groove (13). The worm (8) and the adjusting button (15) rotate synchronously. A fixing rod (16) is fixedly installed at the rear end of the rotating plate (4) and is located in the second arc groove (14). A first movable shaft (17) is movably sleeved on the periphery of the fixing rod (16). A second movable shaft (18) is movably installed at the rear end of the side plate (1) and is located in the top end. An adjusting rod (19) is movably installed between the inside of the second movable shaft (18) and the top of the first movable shaft (17). A knob (20) is fixedly installed on the top end of the adjusting rod (19).

2. A yarn tensioning device for a rapier loom according to claim 1, characterized in that: The clamping assembly (3) comprises two lifting seats (21) and a connecting rod (22), wherein the connecting rod (22) is fixedly installed between the tops of the lifting seats (21), and the bottoms of the two lifting seats (21) are respectively installed with a positioning shaft (23) and a clamping seat (24), a positioning hole (25) is provided at the front end of the shaft rod (11), and a positioning bolt (26) is connected to the inside of the positioning shaft (23) and located in the positioning hole (25), and shaft blocks (27) are movably installed inside the two lifting seats (21), a spring (28) is installed at the top of the shaft block (27), and a pressure roller (29) is movably installed between the two shaft blocks (27).

3. A yarn tensioning device for a rapier loom according to claim 2, characterized in that: The positioning shaft (23) and the clamping seat (24) are respectively located at the front end and the outside of the shaft rod (11) in a clamping arrangement, and the positioning bolt (26) is threadedly connected to the positioning hole (25).

4. A yarn tensioning device for a rapier loom according to claim 3, characterized in that: The shaft block (27) and the spring (28) are sleeved on the outer periphery of the rod column inside the lifting seat (21) and are arranged to slide up and down, and the pressure roller (29) is located between the two shaft blocks (27) and is arranged to rotate movably.

5. A yarn tensioning device for a rapier loom according to any one of claims 1 to 4, characterized in that: Two guide rods (10) are fixedly mounted on the end of the rotating plate (4), and the guide rods (10) are slidably connected inside the supporting plate (5).

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