Yarn feeding tension uniform adjusting device

Abstract

The utility model provides a yarn feeding tension uniform adjusting device, which relates to the technical field of yarn feeding tension adjustment and comprises a tension adjusting support, a yarn feeding roller is coupled to the left side of the upper end of the tension adjusting support, a first hydraulic column is fixed on the upper end face of the tension adjusting support, and the upper end of the first hydraulic column is connected with an adjusting frame plate through a fixing side plate. The inner side of the adjusting frame plate is connected with a limiting block through a limiting groove, the inner side of the limiting block is connected with a first yarn feeding wheel through a rotating shaft, the other end of the first yarn feeding wheel is connected with a clamping block through a rotating shaft, the limiting groove is connected with the adjusting frame plate through a hook spring, and a second yarn feeding wheel is distributed on the right side of the first yarn feeding wheel. The problem that in the prior art, in the tension adjusting process of a hydraulic cylinder by adjusting the overall height of a second reel, a plurality of yarns with different tension on the reel face are partially too tight and broken easily is solved.

Description

A yarn tension uniform adjustment device Technical Field

[0001] This utility model relates to the field of yarn tension adjustment technology, and specifically to a yarn tension uniform adjustment device. Background Technology

[0002] During the weaving process, the yarn needs to be properly adjusted before passing through the weaving machine to ensure uniform yarn tension. Inconsistent tension during winding can lead to problems. A search revealed existing technology (Publication No.: CN202221239318.1) for a yarn tension adjusting device for recycled yarn weaving. The document describes a method where "the yarn is initially taut. When the tension needs adjustment, two hydraulic cylinders are activated. The piston rods of these cylinders drive the second rotating shaft and the second winding wheel upwards. Once the second winding wheel is adjusted to the correct height, the two hydraulic cylinders are deactivated. This pulls the five yarns on the device into a taut state. The device then works in conjunction with another device to wind up the taut yarn, thus..." The yarn in the winding state will drive the first rotating shaft, the first winding wheel, the second rotating shaft, and the second winding wheel to rotate, thereby preventing the yarn from falling off during the winding process. After the yarn is wound up, the hydraulic cylinder can be activated in reverse, causing the piston rod of the hydraulic cylinder to drive the second rotating shaft and the second winding wheel to move downwards and reset. After the second rotating shaft and the second winding wheel have reset, the two hydraulic cylinders can be closed. In this way, the operator only needs to repeat the above operation to easily adjust the tension of the yarn to be wound and prevent the yarn from falling off during the winding process. However, in the existing technology, when the hydraulic cylinder adjusts the tension by adjusting the overall height of the second winding wheel, some yarns with different tensions on the winding wheel surface are prone to breakage due to excessive tightness. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, a yarn tension uniform adjustment device is provided to solve the problem that, in the existing technology, when the hydraulic cylinder adjusts the tension by adjusting the overall height of the second winding wheel, some yarns with different tensions on the winding wheel surface are prone to becoming too tight and breaking.

[0004] To achieve the above objectives, a yarn tension uniformity adjustment device is provided, comprising: a tension adjustment bracket, wherein a yarn feed roller is shaft-connected to the upper left side of the tension adjustment bracket.

[0005] A hydraulic column is fixed to the upper end of the tension adjustment bracket. An adjustment frame plate is connected to the upper end of the hydraulic column through a fixed side plate. A limit block is connected to the inner side of the adjustment frame plate through a limit groove. A first yarn feeding wheel is connected to the inner side of the limit block through a rotating shaft. A snap block is connected to the other end of the first yarn feeding wheel through a rotating shaft. The limit groove is connected to the adjustment frame plate through a hook spring. A second yarn feeding wheel is distributed to the right side of the first yarn feeding wheel.

[0006] Furthermore, a tension sensing roller is provided at the upper right end of the second yarn feeding roller, and the front and rear ends of the tension sensing roller are connected to the tension adjustment bracket through a shaft pillow.

[0007] Furthermore, a differential transformer is installed on the lower end face of the bearing pad, and the front and rear sides of the second yarn feeding wheel are connected to the tension adjustment bracket through a hydraulic column.

[0008] Furthermore, a connecting base plate is fixed to the lower end of the adjusting frame plate by fastening bolts, and a first yarn feeding wheel is provided at both the front and rear distances of the adjusting frame plate.

[0009] Furthermore, a limiting groove is provided on the inner side of the front end of the adjusting frame plate, and a baffle is welded to the rear side of the adjusting frame plate; and the snap-fit ​​block is snapped between the baffles.

[0010] Furthermore, a fixed side plate is welded to the outer end of the adjusting frame plate, and the lower end of the fixed side plate is connected to the hydraulic column through a piston rod.

[0011] Furthermore, a semi-ring block is fixed to both the upper wall of the limiting groove and the upper end face of the limiting block; and a hook spring is connected between the semi-ring blocks.

[0012] The beneficial effects of this utility model are as follows: the yarn tension uniformity adjustment device of this utility model utilizes a buffer-type tension adjustment mechanism composed of a first yarn feeding wheel, an adjustment frame plate, a hook spring, a hydraulic column one, a second yarn feeding wheel, and a hydraulic column two. By squeezing the deformation of the hook spring inside the adjustment frame plate through the first yarn feeding wheel, the tension of the yarn passing through the first yarn feeding wheel is elastically buffered and adjusted. Then, the tension of multiple yarns is uniformly adjusted by the lifting and lowering of the second yarn feeding wheel. This effectively prevents yarn breakage caused by uniform adjustment force, alleviates the stress on some taut yarns, ensures stable delivery of yarn with uniform tension, and improves the stable adjustment effect of the yarn tension uniformity adjustment device. Attached Figure Description

[0013] Figure 1 is a front view cross-sectional structural schematic diagram of the yarn tension uniform adjustment device according to an embodiment of the present invention.

[0014] Figure 2 is a side view sectional view of the first yarn feeding wheel and the adjusting frame plate of this utility model embodiment.

[0015] Figure 3 is a partial side view cross-sectional structural diagram of the first yarn feeding wheel and the adjusting frame plate according to an embodiment of the present invention.

[0016] Figure 4 is a partial top view cross-sectional diagram of the connection structure between the first yarn feeding wheel and the adjusting frame plate in an embodiment of this utility model.

[0017] In the diagram: 1. Tension adjusting bracket; 11. Yarn feed roller; 2. First yarn feeding wheel; 21. Limiting block; 22. Clip-on block; 23. Rotating shaft; 3. Adjusting frame plate; 31. Connecting base plate; 32. Hook spring; 33. Fastening bolt; 34. Fixed side plate; 35. Hydraulic column one; 36. Limiting groove; 37. Semi-ring block; 38. Baffle; 4. Second yarn feeding wheel; 41. Hydraulic column two; 5. Tension sensing roller; 51. Shaft pillow; 52. Differential transformer. Detailed Implementation

[0018] Referring to Figures 1 to 4, this utility model provides a yarn tension uniformity adjustment device, including: a tension adjustment bracket 1, with a yarn feed roller 11 shaft-connected to the upper left side of the tension adjustment bracket 1.

[0019] A hydraulic column 35 is fixed on the upper end of the tension adjustment bracket 1. An adjustment frame plate 3 is connected to the upper end of the hydraulic column 35 through a fixed side plate 34. A limit block 21 is connected to the inner side of the adjustment frame plate 3 through a limit groove 36. A first yarn feeding wheel 2 is connected to the inner side of the limit block 21 through a rotating shaft 23. A snap block 22 is connected to the other end of the first yarn feeding wheel 2 through the rotating shaft 23. The limit groove 36 is connected to the adjustment frame plate 3 through a hook spring 32. A second yarn feeding wheel 4 is distributed on the right side of the first yarn feeding wheel 2.

[0020] First, the yarn enters the first yarn feeding roller 2 and the second yarn feeding roller 4 from the yarn feeding roller 11 of the tension adjusting bracket 1. Finally, it outputs from the tension sensing roller 5, controlling the hydraulic column 1 35 and hydraulic column 2 41 to adjust the lifting height of the first yarn feeding roller 2 and the second yarn feeding roller 4. This causes the yarn tension passing through the first yarn feeding roller 2 to cause the first yarn feeding roller 2 to compress the deformation of the hook spring 32 inside the adjusting frame plate 3. After the yarn tension passing through the first yarn feeding roller 2 is elastically buffered and adjusted, the tension of multiple yarns is then uniformly adjusted by the lifting and lowering of the second yarn feeding roller 4. This effectively prevents the yarn from breaking due to uniform adjustment force, alleviates the stress on some taut yarns, ensures stable delivery of yarn with uniform tension, and improves the stability adjustment effect of the yarn tension uniformity adjustment device.

[0021] In this embodiment, a tension sensing roller 5 is provided at the upper right end of the second yarn feeding roller 4. The front and rear ends of the tension sensing roller 5 are connected to the tension adjusting bracket 1 through a shaft pillow 51. A differential transformer 52 is installed on the lower end face of the shaft pillow 51. The front and rear sides of the second yarn feeding roller 4 are connected to the tension adjusting bracket 1 through a hydraulic column 41.

[0022] As a preferred implementation, the tension of the yarn passing through the tension sensing roller 5 is sensed and detected by the differential transformer 52, so as to facilitate observation of whether the yarn tension is uniform after being adjusted by the first yarn feeding roller 2 and the second yarn feeding roller 4.

[0023] In this embodiment, a connecting base plate 31 is fixed to the lower end of the adjusting frame plate 3 by fastening bolts 33, and a first yarn feeding wheel 2 is provided at both the front and rear distances of the adjusting frame plate 3. A limiting groove 36 is opened on the inner side of the front end of the adjusting frame plate 3, and a baffle 38 is welded to the rear side of the adjusting frame plate 3; and a snap-fit ​​block 22 is snapped between the baffles 38. A semi-ring block 37 is fixed to the upper wall of the limiting groove 36 and the upper end face of the limiting block 21; and a hook spring 32 is hung between the semi-ring blocks 37. A fixed side plate 34 is welded to the outer end of the adjusting frame plate 3, and the lower end of the fixed side plate 34 is connected to the hydraulic column 35 through a piston rod.

[0024] In a preferred embodiment, each set of first yarn feed rollers 2 is elastically connected to an adjusting frame plate 3 on its rear side. This facilitates independent buffering and adjustment of the yarn tension passing through the first yarn feed rollers 2. When the yarn tension passing through the first yarn feed rollers 2 causes the first yarn feed rollers 2 to press up or pull down the hook spring 32 in the limiting groove 36, the hook spring 32 deforms. The elastic deformation force buffers the passing yarn tension. The buffered yarn is then centrally adjusted to uniform tension by the second yarn feed rollers 4. This effectively prevents yarn breakage caused by uniform adjustment force, alleviates the stress on some taut yarns, and ensures stable delivery of yarn with uniform tension. Hydraulic columns 1 (35) and 2 (41) adjust the lifting height of the first yarn feed rollers 2 and the second yarn feed rollers 4, thereby achieving the effect of tension adjustment.

[0025] This utility model's yarn tension uniformity adjustment device can effectively solve the problem of some yarns with different tensions on the winding wheel surface becoming too tight and breaking. It effectively prevents yarn breakage caused by uniform adjustment force, eases the stress on some tight yarns, ensures stable delivery of yarn with uniform tension, and improves the stable adjustment effect of the yarn tension uniformity adjustment device. It is applicable to yarn tension uniformity adjustment devices.

Claims

1. A yarn tension uniform adjustment device, comprising: A tension adjusting bracket (1) is provided with a yarn feeding roller (11) on the upper left side. The tension adjusting bracket (1) is characterized in that: a hydraulic column (35) is fixed on the upper surface of the tension adjusting bracket (1), and an adjusting frame plate (3) is connected to the upper end of the hydraulic column (35) through a fixed side plate (34). A limiting block (21) is connected to the inner side of the adjusting frame plate (3) through a limiting groove (36). A first yarn feeding wheel (2) is connected to the inner side of the limiting block (21) through a rotating shaft (23). A snap-fit ​​block (22) is connected to the other end of the first yarn feeding wheel (2) through a rotating shaft (23). The limiting groove (36) is connected to the adjusting frame plate (3) through a hook spring (32). A second yarn feeding wheel (4) is distributed on the right side of the first yarn feeding wheel (2).

2. The yarn tension uniform adjustment device according to claim 1, characterized in that, The upper right end of the second yarn feeding wheel (4) is provided with a tension sensing roller (5), and the front and rear ends of the tension sensing roller (5) are connected to the tension adjusting bracket (1) through the shaft pillow (51).

3. The yarn tension uniform adjustment device according to claim 2, characterized in that, A differential transformer (52) is installed on the lower end face of the shaft pillow (51), and the front and rear sides of the second yarn feeding wheel (4) are connected to the tension adjustment bracket (1) through the hydraulic column (41).

4. The yarn tension uniformity adjustment device according to claim 1, characterized in that, The lower end of the adjusting frame plate (3) is fixed with a connecting base plate (31) by fastening bolts (33), and a first yarn feeding wheel (2) is provided at the front and rear distances of the adjusting frame plate (3).

5. The yarn tension uniformity adjustment device according to claim 1, characterized in that, The adjustment frame plate (3) has a limiting groove (36) on the inner side of its front end, and a baffle (38) is welded to the rear side of the adjustment frame plate (3); and the snap-fit ​​block (22) is snap-fitted between the baffles (38).

6. The yarn tension uniform adjustment device according to claim 1, characterized in that, The outer end of the adjusting frame plate (3) is welded with a fixed side plate (34), and the lower end of the fixed side plate (34) is connected to the hydraulic column (35) through a piston rod.

7. The yarn tension uniform adjustment device according to claim 1, characterized in that, The upper wall of the limiting groove (36) and the upper end face of the limiting block (21) are both fixed with semi-ring blocks (37); and hook springs (32) are connected between the semi-ring blocks (37).

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