Plate cylinder lifting mechanism

Abstract

The utility model discloses a plate cylinder lifting mechanism which comprises a mounting plate, a reduction gearbox is arranged below the mounting plate, a driving motor is fixedly connected to the lower surface of one end of the reduction gearbox, a lifting adjusting nut gear sleeve is rotatably connected to the interior of the reduction gearbox, and an opening is formed in the surface of the reduction gearbox. A lifting transmission lead screw is installed on the inner wall of the opening of the reduction gearbox, and a lifting fixing base is fixed to the upper end of the lifting transmission lead screw. The plate cylinder lifting mechanism is provided with a rotating shaft supporting frame and an upper limiting plate, so that when the device works, a rotating shaft of a plate roller is placed in a groove of the rotating shaft supporting frame to facilitate positioning, then the plate roller drives the rotating shaft supporting frame to descend, the rotating shaft supporting frame drives a limiting column on the surface to descend, and then the limiting column drives a connecting plate to rotate; and the upper limiting plate is conveniently driven by the connecting plate to be combined with the rotating shaft supporting frame, so that the rotating shaft of the printing roller is fully limited, and the printing roller is prevented from deviating and sliding in the conveying process.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a plate cylinder lifting mechanism. Background Art

[0002] Printing is the technology of batch copying the contents of original manuscripts such as text, pictures, photos, anti-counterfeiting, etc. through plate making, inking, and pressurization, so that the ink is transferred to the surface of materials such as paper, textiles, plastics, leather, PVC, PC, etc. Printing is the process of transferring the approved printing plate to the substrate through printing machinery and special ink. A printing press is a machine for printing text and images. Modern printing presses are generally composed of plate mounting, inking, embossing, paper feeding and other mechanisms. The text and image to be printed are first made into a printing plate and installed on a printing press. Then, ink is applied to the places with text and images on the printing plate by humans or a printing press, and then directly or indirectly transferred to paper or other substrates, thereby replicating printed products identical to the printing plate. The printing roller is one of the accessories of an offset printing press. The plate roller is generally used for plate making. The surface of the roller is copper-plated, and the pattern is engraved by a gravure electronic engraving machine, and then a layer of chrome is plated.

[0003] Due to the different sizes of printed patterns, the required plate roller diameters are different. Therefore, after installing different plate rollers, the distance between the axis of the plate roller and the axis of the bottom roller is different. The plate roller needs to be adjusted through a lifting mechanism to improve the installation effect of the plate roller and ensure the stability and accuracy of the work. When transporting the plate roller, the existing lifting mechanism generally carries it through a pallet and a positioning frame is set on the surface of the pallet. However, the positioning frame cannot effectively fix the plate roller, which is easy to cause it to slide, thereby causing wear and reducing practicality. Utility Model Content

[0004] The utility model aims to provide a plate cylinder lifting mechanism to solve the problem that the positioning frame proposed in the above background technology cannot effectively fix the plate cylinder and easily causes it to slide, thereby causing wear and reducing practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate drum lifting mechanism, comprising a mounting plate, a reduction box is arranged below the mounting plate, a lower surface of one end of the reduction box is fixedly connected to a driving motor, the interior of the reduction box is rotatably connected to a lifting and lowering adjusting screw nut gear sleeve, the surface of the reduction box is provided with an opening, and a lifting and lowering transmission screw is installed on the inner wall of the reduction box opening, the upper end of the lifting and lowering transmission screw is fixed with a lifting and lowering fixed seat, the upper surface of the mounting plate is provided with a positioning groove, and the inner wall of the mounting plate positioning groove is slidably connected to a rotating shaft support frame, the upper surface of the mounting plate is fixed with a positioning column, the surface of the positioning column is rotatably connected to a connecting plate, one end of the connecting plate is fixedly connected to an upper limit plate, the surface of the rotating shaft support frame is fixed with a limiting column, the upper surface of the mounting plate is provided with an opening, and the inner wall of the mounting plate opening is slidably connected to a supporting slider, and the upper end of the supporting slider is fixed with an anti-slip support plate.

[0006] Preferably, the lifting adjustment screw nut gear sleeve is threadedly connected to the lifting transmission screw, and the upper surface of the lifting fixing seat is fixedly connected to the lower surface of the mounting plate.

[0007] By adopting the above technical solution, the lifting and adjusting nut gear sleeve is rotated to make the lifting and adjusting nut gear sleeve drive the lifting transmission screw to slide, so that the lifting transmission screw can drive the lifting fixed seat and the mounting plate to lift synchronously to work.

[0008] Preferably, a spring is connected between the rotating shaft support frame and the mounting plate, and an arc-shaped opening is provided on the surface of the rotating shaft support frame.

[0009] By adopting the above technical solution, the spring between the shaft support frame and the mounting plate is used to facilitate automatic sliding reset, so that the shaft support frame can easily buffer the plate roller and reduce damage when it is raised or lowered.

[0010] Preferably, a sliding groove is provided on the surface of the connecting plate, a linkage column is provided on the surface of the limiting column, the sliding groove of the connecting plate is penetrated by the linkage column of the limiting column, and an arc-shaped opening is provided on the surface of the upper limiting plate.

[0011] By adopting the above technical solution, the movement of the connecting plate can be limited by the linkage column of the limit column, so that when the rotating shaft support frame descends, the limit column is driven to move through the rotating shaft support frame, and the limit column drives the connecting plate to rotate relative to the positioning column through the linkage column on the surface, and then the connecting plate drives the upper limit plate to rotate, so that the upper limit plate can limit the rotating shaft of the plate roller.

[0012] Preferably, a spring is connected between the support slider and the mounting plate, the anti-slip support plate is of arc-shaped design, a damping airbag is fixed to the surface of the anti-slip support plate, an opening is provided on the lower surface of the support slider, and a piston column is slidably connected to the inner wall of the support slider opening.

[0013] By adopting the above technical solution, the plate roller can be supported as a whole by the support slider and the anti-skid support plate, so that the anti-skid support plate drives the support slider to slide down after being pressed by the plate roller, and the spring at the lower end of the support slider buffers the impact force to reduce damage.

[0014] Preferably, the damping airbag is of arc-shaped design, and a cavity is provided inside the damping airbag, and the damping airbag is connected to the air groove supporting the sliding block.

[0015] By adopting the above technical solution, the piston column is squeezed and moved by supporting the movement of the slider, so that the piston column is pushed to slide upward, and after the piston column slides upward, the air is pushed into the damping airbag.

[0016] Preferably, a spring is connected between the piston column and the supporting slider, and the piston column is communicated with an air groove of the supporting slider.

[0017] By adopting the above technical solution, the piston column pushes air into the damping airbag to expand it through the movement of the piston column. After the damping airbag expands, it will fit the outer surface of the plate roller body, so that the damping airbag increases the friction force on the plate roller body, prevents the movement of the plate roller, and thus improves the stability of the device.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the plate cylinder lifting mechanism:

[0019] 1. A rotating shaft support frame and an upper limit plate are provided, so that when the device is working, the rotating shaft of the plate roller is placed in the groove of the rotating shaft support frame for easy positioning, and then the plate roller will drive the rotating shaft support frame to descend, so that the rotating shaft support frame drives the limiting column on the surface to descend, and then the connecting plate is driven to rotate through the limiting column, so that the upper limit plate is driven to merge with the rotating shaft support frame through the connecting plate, so as to fully limit the rotating shaft of the plate roller and prevent the plate roller from deviating and sliding during transportation;

[0020] 2. A support slider and an anti-skid support plate are provided, so that when the device is working, the arc-shaped design of the anti-skid support plate is convenient for supporting the plate roller, thereby improving the laminating performance and ensuring stability. The support slider is convenient for sliding down the compression spring when placing the plate roller, effectively reducing the impact force generated by the plate roller and improving practicality;

[0021] 3. A damping airbag and a piston column are provided. When the device is working, the piston column at the lower end of the supporting slider is squeezed and pushed by the downward movement of the supporting slider. When the piston column slides up, it pushes air into the cavity of the damping airbag, so that the damping airbag expands and fits the surface of the plate roller, thereby increasing the friction of the plate roller and improving the overall anti-skid performance of the device to prevent the plate roller from wearing during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the three-dimensional structure of the installation plate and the lifting fixing seat connected to the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the reduction box and the drive motor of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting adjustment screw nut gear sleeve and the lifting transmission screw rod connected to the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the positioning column and the connecting plate of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection plate and the upper limit plate of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection between the supporting sliding block and the anti-skid supporting plate of the utility model.

[0028] In the figure: 1. Mounting plate; 2. Reducer box; 3. Driving motor; 4. Lifting adjustment screw nut gear sleeve; 5. Lifting transmission screw; 6. Lifting fixing seat; 7. Rotating shaft support frame; 8. Positioning column; 9. Connecting plate; 10. Upper limit plate; 11. Limit column; 12. Support slider; 13. Anti-skid support plate; 14. Damping airbag; 15. Piston column. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-6 The utility model provides a technical solution: a plate cylinder lifting mechanism, including a mounting plate 1, a reduction box 2, a driving motor 3, a lifting and lowering adjusting screw nut gear sleeve 4, a lifting and lowering transmission screw rod 5, a lifting and lowering fixed seat 6, a rotating shaft support frame 7, a positioning column 8, a connecting plate 9, an upper limit plate 10, a limiting column 11, a supporting slider 12, an anti-skid support plate 13, a damping airbag 14 and a piston column 15. The mounting plate 1 is provided with a reduction box 2 below, and the lower surface of one end of the reduction box 2 is fixedly connected with the driving motor 3, the lifting and lowering adjusting screw nut gear sleeve 4 and the lifting and lowering transmission screw rod 5 are threadedly connected, and the upper surface of the lifting and lowering fixed seat 6 is fixedly connected with the lower surface of the mounting plate 1. When using the device, firstly, the rotating shaft of the plate roller is placed in the groove on the surface of the rotating shaft support frame 7, so that the rotating shaft support frame 7 is pressed and driven down by the plate roller, and the limiting column 11 is driven to slide down through the rotating shaft support frame 7.

[0031] The internal rotation of the reduction box 2 is connected with a lifting and lowering adjustment screw gear sleeve 4, the surface of the reduction box 2 is provided with an opening, and the inner wall of the opening of the reduction box 2 is installed with a lifting and lowering transmission screw 5, a spring is connected between the rotating shaft support frame 7 and the mounting plate 1, the surface of the rotating shaft support frame 7 is provided with an arc opening, the surface of the connecting plate 9 is provided with a slide groove, the surface of the limiting column 11 is provided with a linkage column, the slide groove of the connecting plate 9 is penetrated by the linkage column of the limiting column 11, and the surface of the upper limit plate 10 is provided with an arc opening. After the limiting column 11 slides down, the linkage column on its surface will limit the connecting plate 9, so that the connecting plate 9 is driven to rotate relative to the positioning column 8, and the upper limit plate 10 at one end is driven by the connecting plate 9 to rotate and cover the surface of the rotating shaft support frame 7, so as to limit the rotating shaft through the grooves of the upper limit plate 10 and the rotating shaft support frame 7.

[0032] A lifting fixed seat 6 is fixed to the upper end of the lifting transmission screw rod 5, a positioning groove is provided on the upper surface of the mounting plate 1, and the inner wall of the positioning groove of the mounting plate 1 is slidably connected with a rotating shaft support frame 7, a positioning column 8 is fixed on the upper surface of the mounting plate 1, and the surface of the positioning column 8 is rotatably connected with a connecting plate 9, a spring is connected between the support slider 12 and the mounting plate 1, the anti-slip support plate 13 is arc-shaped, and a damping air bag 14 is fixed on the surface of the anti-slip support plate 13, an opening is provided on the lower surface of the support slider 12, and the inner wall of the opening of the support slider 12 is slidably connected with a piston column 15, when the plate roller is installed, the plate roller body is supported by the anti-slip support plate 13, so that the anti-slip support plate 13 drives the support slider 12 to slide down, and the support slider 12 and the rotating shaft support frame 7 are convenient for buffering the impact force generated when the plate roller is placed through the spring at the lower end, so as to reduce damage.

[0033] An upper limit plate 10 is fixedly connected to one end of the connecting plate 9, a limit column 11 is fixed to the surface of the rotating shaft support frame 7, an opening is provided on the upper surface of the mounting plate 1, and a supporting slider 12 is slidably connected to the inner wall of the opening of the mounting plate 1, and an anti-skid support plate 13 is fixed to the upper end of the supporting slider 12, the damping airbag 14 is of arc design, and a cavity is provided inside the damping airbag 14, the damping airbag 14 is connected to the air groove of the supporting slider 12, a spring is connected between the piston column 15 and the supporting slider 12, and the piston column 15 is connected to the air groove of the supporting slider 12, after the supporting slider 12 slides down, the piston column 15 at its lower end is squeezed and raised, so that the piston column 15 pushes air into the damping airbag 14, and the damping airbag 14 will fit the outer surface of the plate roller body after expansion, thereby increasing the friction force and achieving the purpose of anti-skid, thereby improving the stability of the plate roller transport.

[0034] Working principle: When using the plate cylinder lifting mechanism, first place the plate roller shaft on the surface of the shaft support frame 7, so that the shaft support frame 7 slides down to drive the limit column 11 to move, and the limit column 11 drives the connecting plate 9 and the upper limit plate 10 to rotate to facilitate limiting the plate roller shaft. At the same time, the plate roller body is supported by the anti-slip support plate 13, so that the anti-slip support plate 13 drives the supporting slider 12 to descend, and the piston column 15 is squeezed, so that the piston column 15 slides to push air into the damping airbag 14, so that the damping airbag 14 expands and rubs against the plate roller to prevent movement, thereby increasing the overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate cylinder lifting mechanism, comprising a mounting plate (1), a reduction box (2) being arranged below the mounting plate, a driving motor (3) being fixedly connected to the lower surface of one end of the reduction box (2), a lifting adjustment screw nut gear sleeve (4) being rotatably connected inside the reduction box (2), an opening being arranged on the surface of the reduction box (2), and a lifting transmission screw rod (5) being installed on the inner wall of the opening of the reduction box (2), and a lifting fixing seat (6) being fixed to the upper end of the lifting transmission screw rod (5), characterized in that: The upper surface of the mounting plate (1) is provided with a positioning groove, and the inner wall of the positioning groove of the mounting plate (1) is slidably connected to a rotating shaft support frame (7), the upper surface of the mounting plate (1) is fixed with a positioning column (8), the surface of the positioning column (8) is rotatably connected to a connecting plate (9), one end of the connecting plate (9) is fixedly connected to an upper limit plate (10), the surface of the rotating shaft support frame (7) is fixed with a limiting column (11), the upper surface of the mounting plate (1) is provided with an opening, and the inner wall of the opening of the mounting plate (1) is slidably connected to a supporting slider (12), and the upper end of the supporting slider (12) is fixed with an anti-slip support plate (13).

2. The plate cylinder lifting mechanism according to claim 1, characterized in that: The lifting adjustment screw nut gear sleeve (4) is threadedly connected to the lifting transmission screw rod (5), and the upper surface of the lifting fixing seat (6) is fixedly connected to the lower surface of the mounting plate (1).

3. The plate cylinder lifting mechanism according to claim 1, characterized in that: A spring is connected between the rotating shaft support frame (7) and the mounting plate (1), and an arc-shaped opening is provided on the surface of the rotating shaft support frame (7).

4. The plate cylinder lifting mechanism according to claim 1, characterized in that: The surface of the connecting plate (9) is provided with a sliding groove, the surface of the limiting column (11) is provided with a linkage column, the sliding groove of the connecting plate (9) is penetrated by the linkage column of the limiting column (11), and the surface of the upper limiting plate (10) is provided with an arc-shaped opening.

5. The plate cylinder lifting mechanism according to claim 1, characterized in that: A spring is connected between the support slider (12) and the mounting plate (1); the anti-slip support plate (13) is of arc-shaped design; a damping airbag (14) is fixed to the surface of the anti-slip support plate (13); an opening is provided on the lower surface of the support slider (12); and a piston column (15) is slidably connected to the inner wall of the opening of the support slider (12).

6. The plate cylinder lifting mechanism according to claim 5, characterized in that: The damping airbag (14) is of arc-shaped design, and a cavity is provided inside the damping airbag (14), and the damping airbag (14) is in communication with an air groove of the supporting sliding block (12).

7. The plate cylinder lifting mechanism according to claim 5, characterized in that: A spring is connected between the piston column (15) and the supporting slider (12), and the piston column (15) is in communication with the air groove of the supporting slider (12).

Images