Rear beam mechanism of water-jet loom

Abstract

The utility model discloses a back rest mechanism of a water jet loom, which comprises a frame and a main back rest used for conveying warp yarns, the bottom end of the frame is provided with a support plate, the top end of the support plate is provided with a support frame, the support frame is provided with an auxiliary back rest, the auxiliary back rest is connected with the support frame through a rotating shaft, and the main back rest is connected with the main back rest through the rotating shaft. An angle adjusting assembly connected with the supporting frame is arranged in the supporting plate. The device has the advantages that through the design of meshing transmission of the transmission gear and the driven gear, the auxiliary rear beam rotates along with the transmission gear, when warp passes through the auxiliary rear beam, the rotating speed of the auxiliary rear beam is communicated with the warp conveying speed, the warp conveying effect can be effectively improved, and abrasion of the auxiliary rear beam to the warp is reduced; due to the design of the angle adjusting assembly, the position of the auxiliary rear beam can be effectively adjusted conveniently, the torque precision is high, and the auxiliary rear beam can be adjusted more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of water jet looms, in particular to a rear beam mechanism of a water jet loom. Background Art

[0002] The water jet loom mainly consists of an opening mechanism, a water beam weft insertion mechanism, a beating mechanism, a warp feeding mechanism, a take-up mechanism and other auxiliary mechanisms. Its main working principle is: the opening mechanism drives the heald frame to move up and down, so that the warp yarn forms a shed, the weft insertion mechanism brings the weft yarn into the shed through the water beam, and then the beating mechanism drives the steel reed to beat the weft yarn entering the shed into the weaving mouth to weave the cloth. The back beam mechanism of the water jet loom mostly adopts a double back beam structure, which compensates for the change of the warp yarn through the swing of a swing back beam. The back beam mechanism includes a fixed back beam and a swing back beam, and the fixed back beam and the swing back beam are supported by support plates arranged on the left and right sides of the loom.

[0003] When the back beam system of the existing water jet loom transmits the warp yarn, the friction coefficient of the warp yarn on the transmission roller is too large, which greatly reduces the transmission effect of the warp yarn, thereby affecting the work progress.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a rear beam mechanism of a water jet loom to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A rear beam mechanism of a water jet loom comprises a frame and a main rear beam for transmitting warp yarns, wherein a support plate is provided at the bottom end of the frame, a support frame is provided at the top end of the support plate, a secondary rear beam is provided on the support frame, the secondary rear beam is connected to the support frame via a rotating shaft, and an angle adjustment component connected to the support frame is provided in the support plate.

[0008] Preferably, the angle adjustment assembly includes a driving shaft located in the support plate, both ends of the driving shaft are provided with connecting disks, and the bottom ends of the two groups of support frames extend into the support plate and are connected to the connecting disks.

[0009] Preferably, a worm wheel is sleeved on the driving shaft, a worm meshing with the worm wheel is provided at the top end of the worm wheel, and one end of the worm is connected to the output end of the servo motor located in the support plate.

[0010] Preferably, a through hole is provided at the top of the support plate for movement of the support frame, and a motor is provided on one side of one of the support frames.

[0011] Preferably, a transmission gear is sleeved on the output end of the motor, and a driven gear sleeved on the rotating shaft is provided on the top end of the transmission gear.

[0012] Preferably, a vertically arranged limiting slide groove is provided on the frame, and a limiting sliding block connected to the main rear beam is provided in the limiting slide groove.

[0013] Preferably, damping springs connected to the frame are provided at both ends of the limit slide block.

[0014] The beneficial effects of the utility model are as follows: through the design of meshing transmission of the transmission gear and the driven gear, the auxiliary rear beam rotates accordingly, and when the warp yarn passes through the auxiliary rear beam, the rotation speed of the auxiliary rear beam is connected with the warp yarn transmission speed, which can effectively improve the transmission effect of the warp yarn and reduce the wear of the auxiliary rear beam on the warp yarn;

[0015] The design of the angle adjustment component facilitates effective adjustment of the position of the auxiliary rear beam, has high torque accuracy, and makes the adjustment of the auxiliary rear beam more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a rear beam mechanism of a water jet loom according to an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a frame in a rear beam mechanism of a water jet loom according to an embodiment of the utility model;

[0019] Figure 3 This is one of the structural schematic diagrams of an angle adjustment component in a rear beam mechanism of a water jet loom according to an embodiment of the utility model;

[0020] Figure 4 This is the second structural schematic diagram of the angle adjustment component in the rear beam mechanism of a water jet loom according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Frame; 2. Main rear beam; 3. Support plate; 4. Support frame; 5. Auxiliary rear beam; 6. Rotating shaft; 7. Driving shaft; 8. Connecting plate; 9. Worm gear; 10. Worm; 11. Through hole; 12. Motor; 13. Transmission gear; 14. Driven gear; 15. Limiting slide groove; 16. Limiting slider; 17. Damping spring. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, a rear beam mechanism of a water jet loom is provided.

[0025] Embodiment 1;

[0026] like Figure 1-4 As shown, the rear beam mechanism of the water jet loom according to the embodiment of the utility model includes a frame 1 and a main rear beam 2 for transmitting warp yarns, a support plate 3 is provided at the bottom end of the frame 1, a support frame 4 is provided at the top end of the support plate 3, a secondary rear beam 5 is provided on the support frame 4, the secondary rear beam 5 is connected to the support frame 4 through a rotating shaft 6, and an angle adjustment component connected to the support frame 4 is provided in the support plate 3.

[0027] Embodiment 2:

[0028] like Figure 1-4 As shown, the angle adjustment assembly includes a driving shaft 7 located in the support plate 3, both ends of the driving shaft 7 are sleeved with connecting disks 8, the bottom ends of the two groups of support frames 4 extend into the support plate 3 and are connected to the connecting disks 8, a worm gear 9 is sleeved on the driving shaft 7, and a worm 10 meshing with the worm gear 9 is provided at the top end, and one end of the worm 10 is connected to the output end of the servo motor located in the support plate 3.

[0029] Embodiment three;

[0030] like Figure 1-4As shown, a through hole 11 is provided at the top of the support plate 3 for the support frame 4 to move, a motor 12 is provided on one side of one of the support frames 4, a transmission gear 13 is sleeved on the output end of the motor 12, a driven gear 14 sleeved on the top of the transmission gear 13 is provided, and a vertically arranged limiting slide groove 15 is provided on the frame 1, a limiting slide block 16 connected to the main rear beam 2 is provided in the limiting slide groove 15, and damping springs 17 connected to the frame 1 are provided at both ends of the limiting slide block 16.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0032] In actual application, when it is necessary to improve the transmission effect of the warp yarn, the motor 12 drives the transmission gear 13 to rotate, and the meshing transmission of the transmission gear 13 and the driven gear 14 drives the auxiliary rear beam 5 to rotate. When the warp yarn passes through the auxiliary rear beam 5, the rotation speed of the auxiliary rear beam 5 is connected with the transmission speed of the warp yarn, which can effectively improve the transmission effect of the warp yarn and reduce the wear of the auxiliary rear beam 5 on the warp yarn.

[0033] When the position of the auxiliary rear beam 5 needs to be adjusted, the servo motor can be started to drive the worm 10 to rotate, and the driving shaft 7 is driven to rotate through the meshing transmission of the worm 10 and the worm wheel 9, so that the two sets of connecting plates 8 rotate and synchronously drive the support frame 4 to rotate, thereby adjusting the position of the auxiliary rear beam 5 with high torque accuracy, and the adjustment of the auxiliary rear beam 5 is more precise.

[0034] In summary, with the aid of the above technical solution of the utility model, through the design of the meshing transmission of the transmission gear 13 and the driven gear 14, the auxiliary rear beam 5 rotates accordingly. When the warp yarn passes through the auxiliary rear beam 5, the rotation speed of the auxiliary rear beam 5 is connected with the warp yarn transmission speed, which can effectively improve the transmission effect of the warp yarn and reduce the wear of the warp yarn by the auxiliary rear beam 5; and the design of the angle adjustment component facilitates the effective adjustment of the position of the auxiliary rear beam 5, the torque accuracy is high, and the adjustment of the auxiliary rear beam 5 is more precise.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A back beam mechanism of a water jet loom, comprising a frame (1) and a main back beam (2) for transmitting warp yarns, characterized in that: A support plate (3) is provided at the bottom end of the frame (1), a support frame (4) is provided at the top end of the support plate (3), a secondary rear beam (5) is provided on the support frame (4), the secondary rear beam (5) is connected to the support frame (4) via a rotating shaft (6), and an angle adjustment component connected to the support frame (4) is provided in the support plate (3).

2. The back beam mechanism of a water jet loom according to claim 1, characterized in that: The angle adjustment assembly comprises a drive shaft (7) located in the support plate (3), both ends of the drive shaft (7) are sleeved with connecting plates (8), and the bottom ends of the two groups of support frames (4) extend into the support plate (3) and are connected to the connecting plates (8).

3. The back beam mechanism of a water jet loom according to claim 2, characterized in that: A worm wheel (9) is sleeved on the driving shaft (7), a worm (10) meshing with the worm wheel (9) is provided at the top end of the worm wheel (9), and one end of the worm (10) is connected to the output end of the servo motor located in the support plate (3).

4. The back beam mechanism of a water jet loom according to claim 3, characterized in that: A through hole (11) for the support frame (4) to move is provided at the top end of the support plate (3), and a motor (12) is provided on one side of one of the support frames (4).

5. The back beam mechanism of a water jet loom according to claim 4, characterized in that: A transmission gear (13) is sleeved on the output end of the motor (12), and a driven gear (14) sleeved on the rotating shaft (6) is provided at the top end of the transmission gear (13).

6. The back beam mechanism of a water jet loom according to claim 1, characterized in that: The frame (1) is provided with a vertically arranged limiting sliding groove (15), and a limiting sliding block (16) connected to the main rear beam (2) is arranged in the limiting sliding groove (15).

7. The back beam mechanism of a water jet loom according to claim 6, characterized in that: Damping springs (17) connected to the frame (1) are provided at both ends of the limit slide block (16).

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