Belt pressing device

Abstract

The utility model relates to the technical field of printing, in particular to a belt pressing device which comprises a pressing roller, fixing frames are arranged on the left side and the right side of the pressing roller, lifting blocks are connected in the fixing frames in a sliding mode, the left end and the right end of the pressing roller are fixedly connected with the lifting blocks respectively, and rectangular blocks are fixedly connected to the upper ends of the fixing frames through bolts. The interior of the rectangular block is in threaded connection with a moving rod; one compression roller is additionally arranged between every two electrolysis working tanks, and the compression rollers are used for improving the tension stability of the plate belt in the electrolysis working section, ensuring the stability of the polar distance in the electrolysis reaction process and ensuring the normal reaction, so that the plate belt with poor flatness is corrected, and the operation stability of the plate belts with different widths is greatly improved; the movable rod can be rotated anticlockwise or clockwise, so that the lifting block moves up and down, the compression roller moves up and down, the compression roller is designed to be adjustable up and down, the running condition of the plate belt can be adjusted at any time, and the phenomenon that two sides of the plate belt are different in tightness and deviate in an electrolytic bath is prevented.

Description

Technical Field

[0001] The utility model relates to a belt pressing device, in particular to a belt pressing device used in the printing field. Background Art

[0002] Printing is a technology that transfers ink from original manuscripts such as text and pictures to the surface of materials such as paper, fabric, and leather through processes such as plate making, inking, and pressurization, and then replicates the contents of the original manuscripts in batches. In the production and processing of thermal CTP plates in the printing industry, the electrolytic process is used.

[0003] There are some drawbacks when using the electrolytic process to produce and process thermal CTP plates. When the flatness of the aluminum base is poor, the distance between the edge of the base and the graphite electrode is unstable, resulting in uneven electrolysis of the plate surface. When the tension of the production line is uneven, the distance between the aluminum plate in the electrolytic cell is unstable. Changes in the width of the aluminum coil and the speed of the vehicle will cause fluctuations in the running stability of the aluminum plate in the electrolytic cell. These problems directly lead to the instability of the electrolytic roughening process in the CTP plate production process, and cannot fully meet the performance requirements of the product. Utility Model Content

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing electrolytic technology may cause the electrolytic roughening process in the CTP plate production process to be unstable and cannot fully meet the performance requirements of the product.

[0005] In order to solve the above problems, the utility model provides a belt pressing device, including a pressing roller, fixed frames are provided on the left and right sides of the pressing roller, a pair of fixing frames are slidably connected with lifting blocks, the left and right ends of the pressing roller are respectively fixedly connected to the pair of lifting blocks, the upper end of the fixing frame is fixedly connected to a rectangular block by bolts, the internal thread of the rectangular block is connected to a moving rod, the lower end of the moving rod is fixedly connected to a plug-in block, and the upper end of the lifting block is provided with a plug-in groove rotatably connected to the plug-in block.

[0006] In the above-mentioned belt pressing device, it can increase the tension stability of the belt in the electrolysis section, ensure the stability of the pole distance during the electrolysis reaction process, ensure the normal reaction, and thus have a corrective effect on the belt with poor flatness, greatly improving the operating stability of belts of different widths.

[0007] As a further improvement of the present application, the upper end of the moving rod is fixedly connected with a rotating seat, and the inner wall of the fixed frame is in contact with the surface of the lifting block.

[0008] As a further improvement of the present application, a pair of inner wall ends of the fixing frame are provided with rectangular grooves, and both ends of the lifting block are fixedly connected with reinforcement blocks which are slidably connected to the rectangular grooves.

[0009] As a further improvement of the present application, an elastic cover is provided on one side of one of the fixed frames, the side end of the fixed frame is fixedly connected to an adjusting tube, the outer end of the adjusting tube is fixedly connected to a rectangular plate, the end of the rectangular plate away from the fixed frame is rotatably connected to a flip frame, and the end of the flip frame away from the elastic cover is sleeved on the adjusting tube.

[0010] As another improvement of the present application, the bottom end of the rectangular plate is fixedly connected to a support frame, and the upper end of the support frame is fixedly connected to a support tube.

[0011] As another improved supplement of the present application, the upper end of the support tube is fitted with the lower end of the turning frame, and one end of the adjustment tube away from the turning frame is fixedly connected to the limiting block.

[0012] In summary, the device can increase the tension stability of the plate belt in the electrolysis section, ensure the stability of the electrode distance during the electrolysis reaction, ensure the normal reaction, and thus have a corrective effect on the plate belt with poor flatness. The running stability of the plate belts of different widths is greatly improved, and it can protect the surface of the pressure roller and prevent dust and foreign matter from adhering to the pressure roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application;

[0014] Figure 2 This is a schematic diagram of the working structure of the pressure roller in the first embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the fixing frame structure of the first embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the support frame structure of the second embodiment of the present application;

[0017] Figure 5 This is a schematic diagram of the elastic cover structure of the second embodiment of the present application;

[0018] Figure 6 For this application Figure 3 A partial enlarged schematic diagram in the middle.

[0019] Description of the numbers in the figure:

[0020] 1. Pressing roller; 2. Fixed frame; 3. Lifting block; 4. Rectangular block; 5. Moving rod; 6. Plug-in block; 7. Plug-in slot; 8. Rotating seat; 9. Rectangular slot; 10. Reinforcement block; 11. Adjusting tube; 12. Elastic cover; 13. Rectangular plate; 14. Turning frame; 15. Support frame; 16. Support tube; 17. Limiting block. DETAILED DESCRIPTION

[0021] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0022] The first implementation method:

[0023] Figure 1-3 A belt pressing device is shown, including a pressing roller 1, the pressing roller 1 has a diameter of 160-300mm, and the material is polyether, EPDM rubber, etc., a fixed frame 2 is arranged on the left and right sides of the pressing roller 1, a pair of fixed frames 2 are slidably connected with lifting blocks 3, the left and right ends of the pressing roller 1 are respectively fixedly connected with a pair of lifting blocks 3, the upper end of the fixed frame 2 is fixedly connected with a rectangular block 4 by bolts, the inner thread of the rectangular block 4 is connected with a moving rod 5, the lower end of the moving rod 5 is fixedly connected with a plug-in block 6, the upper end of the lifting block 3 is provided with a plug-in groove 7 rotatably connected to the plug-in block 6, the upper end of the moving rod 5 is fixedly connected with a rotating seat 8, the inner wall of the fixed frame 2 is fitted with the surface of the lifting block 3, a pair of inner wall ends of the fixed frame 2 are provided with rectangular grooves 9, and both ends of the lifting block 3 are fixedly connected with reinforcement blocks 10 slidably connected to the rectangular grooves 9.

[0024] This solution can be achieved by adding a pressure roller 1 between each electrolytic working tank, and the angle of the plate belt is 180~120°. Its function is to increase the tension stability of the plate belt in the electrolytic section, ensure the stability of the pole distance during the electrolytic reaction process, ensure the normal reaction, and then have a correction effect on the plate belt with poor flatness. The running stability of the plate belts of different widths is greatly improved. When in use, the moving rod 5 can be rotated counterclockwise or clockwise to move the lifting block 3 up and down, thereby moving the pressure roller 1 up and down. The pressure roller 1 adopts an up and down adjustable design with an adjustment range of 0~30mm. The running condition of the plate belt can be adjusted at any time to prevent the plate belt from being unevenly tight on both sides and running off in the electrolytic tank.

[0025] The second implementation method:

[0026] Based on the first embodiment, this embodiment adds structures such as an elastic cover 12, and the rest of the parts remain the same as the first embodiment.

[0027] Figure 4-6 It is shown that an elastic cover 12 is provided on one side of one of the fixed frames 2, an adjusting tube 11 is fixedly connected to the side end of the fixed frame 2, an outer end of the adjusting tube 11 is fixedly connected to a rectangular plate 13, an end of the rectangular plate 13 away from the fixed frame 2 is rotatably connected to a flip frame 14, an end of the flip frame 14 away from the elastic cover 12 is sleeved on the adjusting tube 11, a supporting frame 15 is fixedly connected to the bottom end of the rectangular plate 13, a supporting tube 16 is fixedly connected to the upper end of the supporting frame 15, an upper end of the supporting tube 16 is fitted with the lower end of the flip frame 14, and an end of the adjusting tube 11 away from the flip frame 14 is fixedly connected to a limiting block 17.

[0028] This solution can be achieved by using the support tube 16 to support and limit the elastic cover 12 to prevent the elastic cover 12 from rotating downward clockwise. After use, it is necessary to apply force to the flip frame 14 to drive the elastic cover 12 to rotate counterclockwise. After the elastic cover 12 is rotated to a suitable position, force is applied to both sides to pull it apart, and then the elastic cover 12 is moved down and sleeved on the pressure roller 1, thereby protecting the surface of the pressure roller 1 and preventing dust and foreign matter from adhering to the pressure roller 1.

[0029] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A belt pressing device, comprising a pressing roller (1), characterized in that: A fixing frame (2) is provided on both the left and right sides of the pressure roller (1), a pair of the fixing frames (2) are slidably connected to a lifting block (3) inside, the left and right ends of the pressure roller (1) are respectively fixedly connected to the pair of lifting blocks (3), the upper end of the fixing frame (2) is fixedly connected to a rectangular block (4) by bolts, the inner part of the rectangular block (4) is threadedly connected to a moving rod (5), the lower end of the moving rod (5) is fixedly connected to a plug-in block (6), and the upper end of the lifting block (3) is provided with a plug-in slot (7) rotatably connected to the plug-in block (6).

2. A belt pressing device according to claim 1, characterized in that: The upper end of the moving rod (5) is fixedly connected to a rotating seat (8), and the inner wall of the fixing frame (2) is in contact with the surface of the lifting block (3).

3. A belt pressing device according to claim 2, characterized in that: A pair of inner wall ends of the fixed frame (2) are provided with rectangular grooves (9), and both ends of the lifting block (3) are fixedly connected with reinforcement blocks (10) that are slidably connected to the rectangular grooves (9).

4. A belt pressing device according to claim 3, characterized in that: An elastic cover (12) is provided on one side of one of the fixing frames (2); an adjusting tube (11) is fixedly connected to the side end of the fixing frame (2); a rectangular plate (13) is fixedly connected to the outer end of the adjusting tube (11); an end of the rectangular plate (13) away from the fixing frame (2) is rotatably connected to a flip frame (14); and an end of the flip frame (14) away from the elastic cover (12) is sleeved on the adjusting tube (11).

5. A belt pressing device according to claim 4, characterized in that: The bottom end of the rectangular plate (13) is fixedly connected to a support frame (15), and the top end of the support frame (15) is fixedly connected to a support tube (16).

6. A belt pressing device according to claim 5, characterized in that: The upper end of the support tube (16) is in contact with the lower end of the turning frame (14), and one end of the adjustment tube (11) away from the turning frame (14) is fixedly connected to a limiting block (17).

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