Double-back-rest movable bracket

Abstract

The utility model provides a double back rest moving bracket, which comprises back rest rollers and back rest brackets symmetrically arranged at the two ends of the back rest rollers, two parallel back rest rollers are arranged between the back rest brackets, two sliding notches are arranged on the back rest brackets, sliding bases are connected in the sliding notches in a sliding mode, and the sliding bases are arranged on the back rest rollers. The rear beam rollers penetrate through the sliding base, vertical penetrating holes are formed in one ends of the two rear beam rollers, positioning columns are arranged in the penetrating holes of the two rear beam rollers, and connecting rods are fixedly arranged at the lower ends of the positioning columns. According to the double-back-rest movable bracket, the connecting rod is connected between one ends of the two back rest rollers, so that the angles generated when the two back rest rollers incline are the same, and then the connecting transverse plate is perpendicular to the surface of the back rest bracket through adjustment of the servo motor; the two back rest rollers are adjusted to be parallel and perpendicular to the surface of the back rest bracket, and calibration is completed.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to a double rear beam movable bracket. Background Technology

[0002] When changing fabric types and adjusting process parameters on an air-jet loom, the position of the back beam significantly impacts weaving efficiency. Adjusting the back beam's position is unavoidable to achieve a good fabric style and high loom efficiency. Existing air-jet looms typically have a set of back beam supports on both sides of the frame, each driven by a cylinder to slide left and right on the frame to adjust its position. However, due to manufacturing errors, it's difficult to ensure perfect alignment of the back beam supports on both sides. This positional discrepancy causes the support rollers connected to the back beam supports to tilt, leading to unstable back beam tension, which affects warp tension and consequently, fabric quality and style. Furthermore, with double back beam supports, the tilting of the two back beam rollers is often asynchronous, requiring individual adjustments for each roller, which is extremely cumbersome.

[0003] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a double rear beam movable bracket to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double rear beam movable bracket, comprising a rear beam roller and rear beam brackets symmetrically installed at both ends of the rear beam roller. Two parallel rear beam rollers are arranged between the rear beam brackets. Two sliding slots are provided on the rear beam brackets. A sliding base is slidably connected in the sliding slots. The rear beam rollers pass through the sliding bases. A vertical through hole is provided at one end of each of the two rear beam rollers. A positioning post is provided in the through hole of each of the two rear beam rollers. A connecting rod is fixed at the lower end of the positioning post.

[0008] Preferably, a rotating column is provided at the middle position of the connecting rod, and a connecting horizontal plate is provided on the rotating column. One end of the connecting horizontal plate is rotatably connected to the rotating column, and the other end is connected to a servo motor.

[0009] Preferably, a fixed frame is fixed on the rear beam bracket, and the servo motor is fixed on the fixed frame.

[0010] Preferably, the upper end of the positioning column is provided with a limiting cover, and the limiting cover is provided on the upper and lower sides of the rear beam roller.

[0011] Preferably, the connecting rod is arranged parallel to the side of the rear beam bracket.

[0012] (III) Beneficial Effects

[0013] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: This utility model provides a double rear beam movable bracket, which connects and sets a connecting rod between one end of the two rear beam rollers so that the two rear beam rollers produce the same angle when tilted. Then, the connecting horizontal plate is adjusted by the servo motor to be perpendicular to the surface of the rear beam bracket, thus completing the adjustment of the two rear beam rollers to make them parallel and perpendicular to the surface of the rear beam bracket, and completing the calibration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] In the diagram: 1 Rear beam bracket, 2 Rear beam roller, 3 Sliding groove, 4 Sliding base, 5 Perforation, 6 Positioning column, 61 Limiting cover, 7 Connecting rod, 8 Rotating column, 9 Connecting cross plate, 10 Servo motor, 11 Fixing frame. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] This utility model embodiment provides a double rear beam movable bracket, such as Figure 1 As shown, it includes a rear beam roller 2 and rear beam brackets 1 symmetrically installed at both ends of the rear beam roller. Two parallel rear beam rollers 2 are arranged between the rear beam brackets 1. Two sliding slots 3 are opened on the rear beam brackets 1. Sliding bases 4 are slidably connected in the sliding slots 3. The rear beam rollers 2 pass through the sliding bases 4. A vertical through hole 5 is opened at one end of each of the two rear beam rollers 2. A positioning post 6 is provided in the through hole 5 of each of the two rear beam rollers 2. A connecting rod 7 is fixed at the lower end of the positioning post 6. The connecting rod 7 is arranged parallel to the side of the rear beam bracket 1.

[0018] Reference Appendix Figure 1 A rotating column 8 is located in the middle of the connecting rod 7. A connecting horizontal plate 9 is mounted on the rotating column 8. One end of the connecting horizontal plate 9 is rotatably connected to the rotating column 8, and the other end is connected to a servo motor 10. Before the rear beam bracket 1 moves, that is, when the rear beam roller 2 is correctly positioned and perpendicular to the surface of the rear beam bracket 1 and the two rear beam rollers 2 are parallel to each other, the connecting rod 7 is parallel to the side of the rear beam bracket 1, and the connecting horizontal plate 9 is perpendicular to the side of the rear beam bracket 1.

[0019] Reference Appendix Figure 1A fixed frame 11 is fixed on the rear beam bracket 1, and a servo motor 10 is fixed on the fixed frame 11. When the rear beam roller 2 tilts, the two rear beam rollers 2 tilt synchronously under the action of the connecting rod 7. At this time, the connecting horizontal plate 9 rotates, and the servo motor 10 receives an electrical signal, that is, it detects that the rear beam roller 2 is tilted. After the electrical signal disappears (after the rear beam roller 2 stabilizes and stops), the servo motor 10 works according to the received electrical signal to make the connecting horizontal plate 9 rotate until it is perpendicular to the surface of the rear beam bracket 1 again, thus completing the reset calibration of the two rear beam rollers 2.

[0020] The upper end of the positioning column 6 is provided with a limiting cover 61, which is set on the upper and lower sides of the rear beam roller 2 to ensure the stability of the connection between the positioning column 6 and the rear beam roller 2.

[0021] This utility model discloses a double rear beam movable bracket. By connecting a connecting rod between one end of two rear beam rollers, the two rear beam rollers generate the same angle when tilted. Then, by adjusting the servo motor, the connecting cross plate is made perpendicular to the surface of the rear beam bracket, thus completing the adjustment of the two rear beam rollers to make them parallel and perpendicular to the surface of the rear beam bracket, and completing the calibration.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double rear beam movable bracket, comprising a rear beam roller (2) and rear beam brackets (1) symmetrically installed at both ends of the rear beam roller, characterized in that: Two parallel rear beam rollers (2) are arranged between the rear beam brackets (1). Two sliding slots (3) are opened on the rear beam brackets (1). A sliding base (4) is slidably connected in the sliding slots (3). The rear beam rollers (2) pass through the sliding bases (4). A vertical through hole (5) is opened at one end of each of the two rear beam rollers (2). A positioning post (6) is provided in the through hole (5) of each of the two rear beam rollers (2). A connecting rod (7) is fixed at the lower end of the positioning post (6).

2. A dual rear beam mobile carriage according to claim 1, wherein: A rotating column (8) is provided in the middle of the connecting rod (7), and a connecting horizontal plate (9) is provided on the rotating column (8). One end of the connecting horizontal plate (9) is rotatably connected to the rotating column (8), and the other end is connected to a servo motor (10).

3. A dual rear beam mobile carriage according to claim 2, wherein: A fixed frame (11) is fixed on the rear beam bracket (1), and the servo motor (10) is fixed on the fixed frame (11).

4. The dual rear beam mobile carriage of claim 1, wherein: The positioning column (6) is provided with a limiting cover (61) at its upper end, and the limiting cover (61) is provided on the upper and lower sides of the rear beam roller (2).

5. The dual rear beam mobile carriage of claim 1, wherein: The connecting rod (7) is arranged parallel to the side of the rear beam bracket (1).

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