Tightening device for net pulling machine

Abstract

The utility model discloses a tightening device for a net pulling machine, and relates to the technical field of net pulling machines. The tightening device for the net pulling machine comprises a workbench and a U-shaped frame, a driving mechanism is arranged on the surface of the U-shaped frame, a protective strip is arranged on the surface of the driving mechanism, and limiting assemblies are arranged on the surfaces of the driving mechanism and the protective strip. According to the utility model, the surfaces of the protective strips can press the surface of the gauze through the driving mechanism, and the four edges of the gauze can be pressed at the same time under the action of the driving mechanism, so that the four edges of the gauze are uniformly stressed, the tightening effect of the gauze is further improved, the four edges of the gauze do not need to be pressed one by one, and the working efficiency is improved. And under the action of the limiting assembly, rapid disassembly and assembly between the protection strip and the driving mechanism can be achieved, and when the protection strip needs to be disassembled and maintained, the disassembly and assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mesh-drawing machines, in particular to a tensioning device used for mesh-drawing machines. Background Art

[0002] The tensioning device of the mesh-pulling machine is an important component of the mesh-pulling machine. It is used to ensure that the mesh maintains appropriate tension during the mesh-pulling process to obtain the desired mesh product. When operating the mesh-pulling machine, it is necessary to select a suitable mesh frame bracket and place it on the workbench, tighten the mesh through the tensioning device, apply gamboge glue on the contact area between the mesh frame and the mesh, and wait for the glue to dry before removing the mesh frame and the mesh together.

[0003] In actual production and processing, the tensioning device clamps the four sides of the mesh in sequence through the clamps on the tensioning device. For mass production, this tensioning method affects work efficiency. If the four sides of the mesh are clamped in sequence, the pressure on the four sides of the mesh will be different, which will cause the processing quality of the finished product. Improvements should be made to this problem.

[0004] For this purpose, a tensioning device for a net stretching machine is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology. The utility model provides a tensioning device for a mesh stretching machine.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A tensioning device for a mesh-drawing machine comprises a workbench and a U-shaped frame, wherein two groups of U-shaped frames are provided and arranged correspondingly, and the two groups of U-shaped frames are fixedly arranged on the top of the workbench, and the surfaces of the two groups of U-shaped frames are provided with driving mechanisms for simultaneously pressing the four sides of the mesh, and the surface of the driving mechanism is provided with a protective strip for preventing the mesh from shifting when being tightened, and the surfaces of the driving mechanism and the protective strip are provided with a limiting assembly for mounting the protective strip on the driving mechanism.

[0008] Furthermore, the driving mechanism includes a first threaded rod and a second threaded rod, the surfaces of the two groups of U-shaped frames are respectively threadedly connected with the first threaded rod and the second threaded rod, the surface fixing sleeve of the first threaded rod is provided with a first sprocket, the surface fixing sleeve of the second threaded rod is provided with a second sprocket, the surfaces of the first sprocket and the second sprocket are meshed with chains, the bottom ends of the first threaded rod and the second threaded rod are rotatably connected with a cross plate, and the two sides of the cross plate are slidably installed with the inner walls of the two sides of the U-shaped frame, the top of the protective strip is in contact with the bottom of the cross plate, and the top of the first threaded rod is fixed with a crank.

[0009] Furthermore, the two groups of transverse plates are both arranged in an L shape, and two groups of protection strips are arranged at the bottom of each group of transverse plates.

[0010] Furthermore, the limiting assembly includes a cavity, a cavity is opened on the top of the protective strip, a spring is fixedly provided at the inner bottom of the cavity, the top of the spring is fixedly connected to a shaft column, a limiting block is rotatably provided at the top of the shaft column, a rectangular opening is opened on the surface of the cross plate, and a groove is opened on the top of the cross plate.

[0011] Furthermore, the area of ​​the rectangular opening is larger than the area of ​​the limiting block, and the groove is matched with the limiting block.

[0012] Furthermore, the shaft column is adapted to the cavity, and the shaft column and the inner wall of the cavity are slidably arranged.

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

[0014] 1. The utility model can move the protection strip longitudinally through the driving mechanism, so as to adjust the height of the protection strip. Under the action of the driving mechanism, the surface of the protection strip can be pressed against the surface of the mesh, and the four sides of the mesh can be pressed simultaneously under the action of the driving mechanism, so that the four sides of the mesh are evenly stressed, thereby improving the tensioning effect of the mesh, and there is no need to press the four sides of the mesh one by one, thereby improving work efficiency. Under the action of the limiting component, the protection strip and the driving mechanism can be quickly disassembled and assembled, and when the protection strip needs to be disassembled for maintenance, the disassembly and assembly efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the front section of the utility model;

[0017] Figure 3 It is a schematic diagram of an enlarged view of part A of the utility model;

[0018] Figure 4 It is a schematic diagram of a partial exploded view of the utility model;

[0019] Figure numerals: 1. workbench; 2. U-shaped frame; 3. driving mechanism; 301. first threaded rod; 302. first sprocket; 303. chain; 304. second threaded rod; 305. second sprocket; 306. cross plate; 307. crank; 4. protective strip; 5. limit assembly; 501. cavity; 502. spring; 503. shaft column; 504. limit block; 505. rectangular opening; 506. groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4As shown, a tensioning device for a mesh-drawing machine comprises a workbench 1 and a U-shaped frame 2, wherein the U-shaped frames 2 are provided in two groups and are arranged in correspondence, and the two groups of U-shaped frames 2 are fixedly arranged on the top of the workbench 1, and the surfaces of the two groups of U-shaped frames 2 are provided with a driving mechanism 3 for simultaneously pressing the four sides of the mesh, and the surface of the driving mechanism 3 is provided with a protective strip 4 for preventing the mesh from deflecting when being tightened, and the surfaces of the driving mechanism 3 and the protective strip 4 are provided with a limiting assembly 5 for installing the protective strip 4 on the driving mechanism 3; specifically, the mesh is spread flat on the surface of the workbench 1, and the driving mechanism 3 can make the protection strip 4 move longitudinally, so as to adjust the height of the protection strip 4. Under the action of the driving mechanism 3, the surface of the protection strip 4 can be pressed against the surface of the mesh, and under the action of the driving mechanism 3, the four sides of the mesh can be pressed at the same time, so that the four sides of the mesh are evenly stressed, thereby improving the tightening effect of the mesh, and there is no need to press the four sides of the mesh one by one, thereby improving the work efficiency. Under the action of the limiting component 5, the protection strip 4 and the driving mechanism 3 can be quickly disassembled and assembled, and when the protection strip 4 needs to be disassembled and maintained, the disassembly efficiency can be improved.

[0025] like Figure 1 , Figure 2 As shown, the driving mechanism 3 includes a first threaded rod 301 and a second threaded rod 304. The surfaces of the two groups of the U-shaped frames 2 are respectively threadedly connected with the first threaded rod 301 and the second threaded rod 304. The surface of the first threaded rod 301 is fixedly sleeved with a first sprocket 302, and the surface of the second threaded rod 304 is fixedly sleeved with a second sprocket 305. The surfaces of the first sprocket 302 and the second sprocket 305 are meshed with chains 303. The bottom ends of the first threaded rod 301 and the second threaded rod 304 are both rotatably connected with a cross plate 306, and both sides of the cross plate 306 are connected to the U-shaped frames 2. The inner walls on both sides of the frame 2 are slidably installed, the top of the protective strip 4 is in contact with the bottom of the cross plate 306, and a crank 307 is fixed to the top of the first threaded rod 301; specifically, rotating the crank 307 causes the first threaded rod 301 to rotate, and the first sprocket 302 rotates accordingly, and when the first sprocket 302 rotates, it can engage the chain 303 and cause the second sprocket 305 to rotate, thereby realizing the simultaneous rotation of the first threaded rod 301 and the second threaded rod 304, and then realizing the simultaneous longitudinal movement of the two sets of cross plates 306, and the protective strip 4 moves longitudinally with the cross plate 306.

[0026] like Figure 2 , Figure 3 As shown, the two groups of horizontal plates 306 are both L-shaped, and two groups of protective strips 4 are provided at the bottom of each group of horizontal plates 306; specifically, the two groups of horizontal plates 306 can form a rectangle, thereby adapting to the rectangular mesh, and then simultaneously pressing the four sides of the rectangular mesh.

[0027] like Figure 3 , Figure 4 As shown, the limiting assembly 5 includes a cavity 501, the top of the protective strip 4 is provided with a cavity 501, a spring 502 is fixedly provided at the inner bottom of the cavity 501, the top of the spring 502 is fixedly connected with a shaft column 503, the top of the shaft column 503 is rotatably provided with a limiting block 504, the surface of the cross plate 306 is provided with a rectangular opening 505, and the top of the cross plate 306 is provided with a groove 506; specifically, when the limiting block 504 is moved to the bottom of the cross plate 306 and the rectangular opening is engaged, the limiting block 504 is engaged with the rectangular opening 505. 505 corresponds, the protective strip 4 is moved vertically upward so that the limit block 504 passes through the rectangular opening 505. At this time, the limit block 504 is pulled and rotated, so that the shaft column 503 moves vertically upward. When the shaft column 503 moves, the spring 502 is stretched. When the limit block 504 corresponds to the groove 506, the limit block 504 is released. Under the action of the elastic force of the spring 502, the limit block 504 is embedded in the inside of the groove 506, thereby realizing the installation between the protective strip 4 and the cross plate 306.

[0028] like Figure 3 , Figure 4 As shown, the area of ​​the rectangular opening 505 is larger than the area of ​​the limit block 504, and the groove 506 is adapted to the limit block 504; specifically, the limit block 504 can smoothly pass through the rectangular opening 505, and when the limit block 504 is embedded in the groove 506, the groove 506 can limit the limit block 504, thereby preventing the limit block 504 from rotating.

[0029] like Figure 3 , Figure 4 As shown, the shaft column 503 is adapted to the cavity 501, and the shaft column 503 and the inner wall of the cavity 501 are slidably arranged; specifically, the cavity 501 can limit the shaft column 503, so that the shaft column 503 can move vertically.

[0030] In summary: the mesh is spread flat on the surface of the workbench 1, and the protective strip 4 can be moved longitudinally by the driving mechanism 3 to adjust the height of the protective strip 4. Under the action of the driving mechanism 3, the surface of the protective strip 4 can be pressed against the surface of the mesh, and under the action of the driving mechanism 3, the four sides of the mesh can be pressed simultaneously, so that the four sides of the mesh are evenly stressed, thereby improving the tensioning effect of the mesh, and there is no need to press the four sides of the mesh one by one, thereby improving work efficiency. Under the action of the limiting component 5, the protective strip 4 and the driving mechanism 3 can be quickly disassembled and assembled, and when the protective strip 4 needs to be disassembled and maintained, the disassembly efficiency can be improved.

[0031] The above shows and describes the basic principle, main features and 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 the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements 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 tensioning device for a net-drawing machine, characterized in that: The invention comprises a workbench (1) and a U-shaped frame (2), wherein the U-shaped frame (2) is provided with two groups and arranged in correspondence, and the two groups of U-shaped frames (2) are fixedly arranged on the top of the workbench (1), and the surfaces of the two groups of U-shaped frames (2) are provided with a driving mechanism (3) for simultaneously pressing the four sides of the mesh, and the surface of the driving mechanism (3) is provided with a protective strip (4) for preventing the mesh from deflecting when being tightened, and the surfaces of the driving mechanism (3) and the protective strip (4) are provided with a limiting component (5) for mounting the protective strip (4) on the driving mechanism (3).

2. A tensioning device for a mesh stretching machine according to claim 1, characterized in that: The driving mechanism (3) comprises a first threaded rod (301) and a second threaded rod (304). The surfaces of the two groups of the U-shaped frames (2) are respectively threadedly connected with the first threaded rod (301) and the second threaded rod (304). The surface of the first threaded rod (301) is fixedly sleeved with a first sprocket (302). The surface of the second threaded rod (304) is fixedly sleeved with a second sprocket (305). The surfaces of the first sprocket (302) and the second sprocket (305) are meshed with chains (303). The bottom ends of the first threaded rod (301) and the second threaded rod (304) are both rotatably connected with a transverse plate (306). The two sides of the transverse plate (306) are slidably mounted on the inner walls of the U-shaped frame (2). The top of the protective strip (4) is in contact with the bottom of the transverse plate (306). The top of the first threaded rod (301) is fixedly provided with a crank (307).

3. A tensioning device for a net-drawing machine according to claim 2, characterized in that: The two groups of transverse plates (306) are both arranged in an L shape, and two groups of protection strips (4) are arranged at the bottom of each group of transverse plates (306).

4. A tensioning device for a net-drawing machine according to claim 3, characterized in that: The limiting assembly (5) comprises a cavity (501), the top of the protective strip (4) is provided with a cavity (501), the inner bottom of the cavity (501) is fixedly provided with a spring (502), the top of the spring (502) is fixedly connected with a shaft column (503), the top of the shaft column (503) is rotatably provided with a limiting block (504), the surface of the cross plate (306) is provided with a rectangular opening (505), and the top of the cross plate (306) is provided with a groove (506).

5. A tensioning device for a net-drawing machine according to claim 4, characterized in that: The area of ​​the rectangular opening (505) is larger than the area of ​​the limiting block (504), and the groove (506) is adapted to the limiting block (504).

6. A tensioning device for a mesh-drawing machine according to claim 4, characterized in that: The shaft column (503) is adapted to the cavity (501), and the shaft column (503) and the inner wall of the cavity (501) are slidably arranged.

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