Net clamping device of net stretching machine

Abstract

The utility model belongs to the field of silk screen plate processing, particularly relates to a screen clamping device of a screen stretching machine, and solves the problems that in the prior art, due to the fact that an existing screen clamping device cannot effectively clamp silk screens of different sizes, the tension of the silk screens is uneven, and the quality of the silk screens is affected. The adjusting mechanism comprises a second sliding block, the upper end of the second sliding block is connected with a rotating air cylinder, the upper end of the rotating air cylinder is fixedly connected with a second connecting plate, the outer wall of one side of the upper end of the second connecting plate is connected with a servo motor, the lower end of the servo motor is connected with a telescopic rod, and the lower end of the telescopic rod is fixedly connected with a pressing block. A second sliding groove is formed in the outer wall of the lower end of the second connecting plate. By means of the design of the rotating air cylinder and the servo motor, the device can be adjusted according to different sizes of the silk screen, it is guaranteed that tension of the silk screen is even in the whole clamping process, and the quality of the silk screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing screen processing, in particular to a screen clamping device of a screen stretching machine. Background Art

[0002] The screen stretching machine, also commonly called hydraulic screen stretching machine or oil pressure screen stretching machine, is mainly used for drawing screen printing plates. It stretches the screen on the screen frame with a certain tension and is an important device for printing plate carriers. Compared with pneumatic screen stretching machines and mechanical screen stretching machines on the market, it has the advantages of high degree of automation, high production efficiency, high product quality, etc. The equipment is simple to operate, easy to use, and has little dependence on the operator's technical skills.

[0003] In the prior art, the Chinese utility model with publication number: CN208263651U discloses a net clamping device for a net stretching machine, which includes a frame, a clamping device connected to the frame, and a clamping member connected to the clamping device, wherein the clamping device includes a cylinder, and the clamping member is connected to the cylinder and driven to rise and fall by the cylinder. The utility model has the advantages of using a double-rod cylinder to clamp the net cloth, which is reliable, highly automated, and improves work efficiency; and one worker can complete the net clamping operation, saving manpower.

[0004] In the above technical scheme, the connecting block is driven by the cylinder to lift the clamping piece, and then the clamping cylinder drives the pressure plate and the pressure block to apply pressure to the clamping piece, so that the clamping piece and the frame clamp the wire mesh. However, the wire mesh is fixed by the clamping piece, and then the frame is moved to drive the clamping piece to move and tension the wire mesh. Since the wire mesh is fixed as a whole by the clamping piece, the tension at different parts of the wire mesh will be different while it is tensioned. In order to ensure the drawing quality of the silk screen screen and keep the surface tension of the wire mesh basically consistent, it is necessary to adjust the wire mesh at a local position, and adjust the local tension to achieve the purpose of uniform overall tension. However, the traditional clamping device cannot adjust the tension of the wire mesh after clamping and fixing it, which will affect the quality of the wire mesh tensioning, and the existing device has poor adaptability to wire meshes of different sizes and shapes, and requires frequent replacement of clamps or complex adjustments, which reduces production efficiency. Utility Model Content

[0005] The technical problem solved by the utility model is that the existing mesh clamping device cannot effectively clamp wire meshes of different sizes, so that the wire mesh tension is uneven, resulting in the quality of the wire mesh being affected. A mesh clamping device for a wire stretching machine is provided.

[0006] The cam is provided with a plurality of support members, each of which is provided with a plurality of support members, and the support members are provided with a plurality of support members, each of which is provided with a plurality of support members.

[0007] Preferably, a first slider is slidably connected to the middle of the outer wall of the sliding rod, the outer wall of the upper end of the first slider is connected to the first cylinder, the outer wall of the upper end of the first cylinder is fixedly connected to a first connecting plate, the outer wall of the lower end of the first connecting plate on the side away from the first cylinder is fixedly connected to a connecting column, the lower end of the connecting column is fixedly connected to a pressure plate, and a first sliding groove is provided on the pressure plate.

[0008] Preferably, the outer wall at the lower end of the pressing plate is correspondingly connected to a pressing groove provided on the outer wall at one side of the upper end of the supporting foot.

[0009] Preferably, two sliding bars are provided on an outer wall of one side of the fixing block, and the outer walls of the two sliding bars are both slidably connected with a first sliding block and a second sliding block.

[0010] Preferably, the sliding block provided on the inner wall of the second sliding groove is slidably connected to the inner wall of the first sliding groove provided on the pressing plate.

[0011] Preferably, the extrusion piece provided on the outer wall of the sliding block is correspondingly connected to the outer wall of the upper end of the pressing plate.

[0012] Preferably, a first sliding block is provided in the middle of the outer wall of the sliding rod, and two second sliding blocks are provided on both sides of the first sliding block.

[0013] Preferably, the bottom end of the sliding block is correspondingly connected to the pressing groove opened on the upper end of the workbench.

[0014] Compared with the related art, the utility model has the following beneficial effects:

[0015] 1. The utility model can accurately adjust the local tension of the wire mesh through the servo motor and the telescopic rod, ensuring that the wire mesh maintains uniform tension during the entire clamping process, thereby improving the quality of the wire mesh;

[0016] 2. The utility model can adjust the device according to the different sizes of the screen through the design of the sliding block and the rotating cylinder, ensuring that all corners can be effectively clamped, thereby enhancing the practicality and adaptability of the device. The device realizes automatic operation, and completes the clamping and tension adjustment of the screen through the cooperation of the cylinder, the rotating cylinder and the servo motor, without manual intervention, thereby improving work efficiency.

[0017] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 or the description of the prior art 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.

[0019] Figure 1 It is the overall structure diagram of the utility model;

[0020] Figure 2 This is the overall structural diagram of the workbench of the utility model;

[0021] Figure 3 This is the overall structure diagram of the net clamping device of the utility model;

[0022] Figure 4 This is the overall structural diagram of the adjustment mechanism of the utility model.

[0023] Numbers in the figure:

[0024] 1. Support foot; 2. Workbench; 3. Placement slot; 4. Pressing slot; 5. Fixed block; 6. Sliding rod; 7. First slider; 8. First cylinder; 9. First connecting plate; 10. Connecting column; 11. Pressing plate; 12. First sliding slot; 13. Adjusting mechanism;

[0025] 131. second sliding block; 132. rotating cylinder; 133. second connecting plate; 134. servo motor; 135. telescopic rod; 136. pressing block; 137. second sliding groove; 138. sliding block; 139. extrusion piece. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 A net clamping device for a net stretching machine includes a supporting foot 1, a workbench 2 is fixedly connected to the upper end of the supporting foot 1, a placement groove 3 is opened in the middle of the outer wall of the upper end of the workbench 2, a pressing groove 4 is opened on the outer wall of the upper end of the workbench 2, a fixing block 5 is fixedly connected to the side wall of the upper end of the workbench 2, a sliding rod 6 is fixedly connected to the outer walls of both sides of the fixing block 5, an adjusting mechanism 13 is slidably connected to the outer wall of the sliding rod 6, and the adjusting mechanism 13 includes a second sliding block 131, and the upper end of the second sliding block 131 is connected to a rotating cylinder 132, and the upper end of the rotating cylinder 132 A second connecting plate 133 is fixedly connected, a servo motor 134 is connected to an outer wall on one side of the upper end of the second connecting plate 133, a telescopic rod 135 is connected to the lower end of the servo motor 134, a pressing block 136 is fixedly connected to the lower end of the telescopic rod 135, a second sliding groove 137 is provided on the outer wall of the lower end of the second connecting plate 133, a sliding block 138 is slidably connected to the inner wall of the second sliding groove 137, the bottom end of the sliding block 138 is correspondingly connected to the pressing groove 4 provided on the upper end of the workbench 2, and an extrusion piece 139 is fixedly connected to the outer wall of the sliding block 138.

[0028] In this embodiment, a supporting foot 1 is designed, a workbench 2 is fixedly connected to the upper end of the supporting foot 1, and a placement groove 3 is opened in the middle of the upper outer wall of the workbench 2, in which the wire mesh can be placed for the net-pulling operation. When the wire mesh is pulled, a fixing block 5 can be connected to the side wall of the upper end of the workbench 2, a sliding rod 6 is connected to the side wall of the fixing block 5, and a plurality of adjustment mechanisms 13 are connected to the outer wall of the sliding rod 6, so that the wire mesh can be pulled. In the process of pulling the net, different local tensions will appear, resulting in uneven tension on the wire mesh, which will cause problems in the quality of the wire mesh. For this, an adjustment mechanism 13 is provided, and the adjustment mechanism 13 can locally adjust the wire mesh, so as to achieve uniform tension of the wire mesh, wherein the adjustment mechanism 13 includes a second slider 131, and the second slider 131 can be slidably connected to the outer wall of the sliding rod 6, so that it can drive the adjustment mechanism 13 to move to different positions, and a rotating cylinder 132 is connected to the upper end of the second slider 131, and the rotating cylinder 132 can drive the second connecting plate 1 at the upper end 33 is lifted or lowered. Since the sizes of the wire meshes to be clamped are different, the rotating cylinder 132 also has the function of rotating the angle, which can drive the second connecting plate 133 to rotate the angle. The outer wall on the other side of the second connecting plate 133 is connected with a servo motor 134, a telescopic rod 135 and a pressure block 136. The servo motor 134 can drive the telescopic rod 135 to extend and retract and make the pressure block 136 act on the wire mesh, so as to adjust the uneven tension of the wire mesh, and the pressure block 136 The columnar style is adopted, so that the wire mesh will not be damaged when it is squeezed, and a second slide groove 137 is opened on the outer wall of the lower end of the second connecting plate 133, and a sliding block 138 is slidably connected to the inner wall of the second slide groove 137. The sliding block 138 can adjust the angle according to the size of the wire mesh, so as to clamp it and fix it, and the extrusion piece 139 provided on the outer wall of the sliding block 138 can press down on the external parts, so that the wire mesh can be better clamped.

[0029] See also Figure 1 and Figure 3A first slider 7 is slidably connected to the middle part of the outer wall of the slide rod 6, two slide rods 6 are provided on the outer wall of one side of the fixed block 5, and the outer walls of the two slide rods 6 are slidably connected to the first slider 7 and the second slider 131, a first slider 7 is provided in the middle part of the outer wall of the slide rod 6, and two second sliders 131 are provided on both sides of the first slider 7, the outer wall of the upper end of the first slider 7 is connected to the first cylinder 8, the outer wall of the upper end of the first cylinder 8 is fixedly connected to the first connecting plate 9, the outer wall of the lower end of the first connecting plate 9 away from the first cylinder 8 is fixedly connected to the connecting column 10, and the lower end of the connecting column 10 is fixedly connected to the pressing plate 11, the extrusion piece 139 provided on the outer wall of the sliding block 138 is correspondingly connected to the outer wall of the upper end of the pressing plate 11, the outer wall of the lower end of the pressing plate 11 is correspondingly connected to the pressing groove 4 opened on the outer wall of one side of the upper end of the supporting foot 1, and the pressing plate 11 is provided with a first sliding groove 12, and the sliding block 138 provided on the inner wall of the second sliding groove 137 is slidably connected to the inner wall of the first sliding groove 12 opened on the pressing plate 11.

[0030] In this embodiment, a first sliding block 7 is provided in the middle of the outer wall of the sliding rod 6 by design, wherein the upper end of the first sliding block 7 is connected to a first cylinder 8, and the first cylinder 8 can drive the first connecting plate 9 connected to the upper end to be lifted or lowered, and a connecting column 10 is fixedly connected to the other side of the lower end of the first connecting plate 9, and a pressing plate 11 is connected to the lower end of the connecting column 10. Therefore, when the first connecting plate 9 brought by the first cylinder 8 is lifted and lowered, the connecting column 10 and the pressing plate 11 can also be lifted and lowered, and the lower end of the pressing plate 11 is correspondingly connected to the pressing groove 4 opened on the upper side wall of the workbench 2. At this time, the first connecting plate 9 can be lifted and lowered. The wire mesh to be clamped is placed on the upper end of the workbench 2 and covers the upper end of the pressing groove 4. At this time, the pressing plate 11 can clamp it, so that the next operation can be carried out, and a first sliding groove 12 is opened on the pressing plate 11. The first sliding groove 12 runs through the pressing plate 11, and its inner wall is slidably connected with the sliding block 138. At this time, the sliding block 138 can pass through the first sliding groove 12 and squeeze the wire mesh at the upper end of the pressing groove 4, thereby completing the clamping operation, and the upper end of the pressing plate 11 can be connected to the extrusion piece 139 accordingly, so that the extrusion piece 139 can press down the pressing plate 11, so as to better clamp the wire mesh.

[0031] The specific implementation process of the utility model is as follows: the wire mesh is placed on the outer wall of the upper end of the workbench 2, and covers the upper ends of the placement groove 3 and the pressing groove 4. At this time, the first slider 7 and the second slider 131 are slid to the appropriate position on the outer wall of the slide rod 6 according to the size of the wire mesh. At this time, the first slider 7 is located in the middle of the wire mesh, and the first cylinder 8 connected to the upper end of the first slider 7 is started. The first cylinder 8 drives the first connecting plate 9, the connecting column 10 and the pressing plate 11 to press down. At this time, the bottom end of the pressing plate 11 is connected to the pressing groove 4 and clamps the wire mesh, but the tension on the wire mesh is not uniform, which will affect the quality of the wire mesh. Therefore, the rotating cylinder 132 at the upper end of the second slider 131 is started, and the rotating cylinder 132 drives the second connecting plate 133 to descend, and the second connecting plate 133 will drive the servo motor 134, the telescopic rod 135 and the pressing block 136 on one side to move downward. When it reaches the appropriate position, the servo motor 134 can be started, and the servo motor 134 will drive the telescopic rod 135 and the pressing block 136 to move downward. The retracted rod 135 and the pressing block 136 are pressed down, thereby adjusting the tension of the wire mesh locally to achieve a uniform tension effect. When the second connecting plate 133 is pressed down, the sliding block 138 and the extruding piece 139 connected to the inner wall of the second slide groove 137 are also driven to press down, and the extruding piece 139 can play a downward pressing effect on the pressing plate 11, thereby increasing the pressure thereon, and further clamping the wire mesh. However, due to the different sizes of the wire mesh, sometimes all corners cannot be completely clamped. At this time, the rotating cylinder 132 can be driven to rotate at an angle, and the second connecting plate 133 can be driven to rotate at this time. The sliding block 138 connected to the inner wall of the second slide groove 137 opened at its lower end is connected to the inner wall of the first slide groove 12 opened on the pressing plate 11, so it is affected by it and slides on the inner wall of the second slide groove 137, so that the sliding block 138 can clamp according to wire meshes of different sizes, thereby increasing the practicality of the device.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A net clamping device for a net stretching machine, comprising a supporting foot (1), characterized in that: The upper end of the supporting foot (1) is fixedly connected to a workbench (2), a placement groove (3) is provided in the middle of the upper outer wall of the workbench (2), a pressing groove (4) is provided on the upper outer wall of the workbench (2), a fixing block (5) is fixedly connected to the side wall of the upper end of the workbench (2), both sides of the outer wall of the fixing block (5) are fixedly connected to sliding rods (6), the outer wall of the sliding rod (6) is slidably connected to an adjusting mechanism (13), the adjusting mechanism (13) comprises a second sliding block (131), the upper end of the second sliding block (131) is connected to a rotating cylinder (132), the The upper end of the rotary cylinder (132) is fixedly connected to a second connecting plate (133); an outer wall on one side of the upper end of the second connecting plate (133) is connected to a servo motor (134); a telescopic rod (135) is connected to the lower end of the servo motor (134); a pressing block (136) is fixedly connected to the lower end of the telescopic rod (135); a second sliding groove (137) is provided on the outer wall at the lower end of the second connecting plate (133); a sliding block (138) is slidably connected to the inner wall of the second sliding groove (137); and an extrusion piece (139) is fixedly connected to the outer wall of the sliding block (138).

2. A net clamping device for a net stretching machine according to claim 1, characterized in that: A first sliding block (7) is slidably connected to the middle of the outer wall of the sliding rod (6); the outer wall of the upper end of the first sliding block (7) is connected to the first cylinder (8); the outer wall of the upper end of the first cylinder (8) is fixedly connected to the first connecting plate (9); the outer wall of the lower end of the first connecting plate (9) away from the first cylinder (8) is fixedly connected to a connecting column (10); the lower end of the connecting column (10) is fixedly connected to a pressing plate (11); and a first sliding groove (12) is provided on the pressing plate (11).

3. A net clamping device for a net stretching machine according to claim 2, characterized in that: The outer wall of the lower end of the pressing plate (11) is correspondingly connected to a pressing groove (4) provided on the outer wall of one side of the upper end of the supporting foot (1).

4. The net clamping device of a net stretching machine according to claim 2, characterized in that: Two sliding rods (6) are provided on the outer wall of one side of the fixed block (5), and the outer walls of the two sliding rods (6) are both slidably connected with a first sliding block (7) and a second sliding block (131).

5. The net clamping device of a net stretching machine according to claim 2, characterized in that: The sliding block (138) provided on the inner wall of the second sliding groove (137) is slidably connected to the inner wall of the first sliding groove (12) opened on the pressing plate (11).

6. The net clamping device of a net stretching machine according to claim 2, characterized in that: The extrusion piece (139) provided on the outer wall of the sliding block (138) is correspondingly connected to the outer wall of the upper end of the pressing plate (11).

7. The net clamping device of a net stretching machine according to claim 2, characterized in that: A first sliding block (7) is provided in the middle of the outer wall of the sliding rod (6), and two second sliding blocks (131) are provided on both sides of the first sliding block (7).

8. The net clamping device of a net stretching machine according to claim 1, characterized in that: The bottom end of the sliding block (138) is correspondingly connected to a pressing groove (4) provided at the top end of the workbench (2).

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