Pressure adjusting device of printing machine

Abstract

The utility model relates to the technical field of printing machines, in particular to a printing machine pressure adjusting device which comprises two supporting columns, sliding grooves are formed in the surfaces of the two supporting columns, two sliding blocks are connected to the inner walls of the two sliding grooves in a sliding mode, every two sliding blocks form a group, and the four sliding blocks form two groups in total. According to the device, the output end of the motor A drives the two-way screw A to rotate, the two-way screw A drives the two-way screw B to rotate through the transmission assembly, and therefore the two-way screw B and the sliding sleeve on the surface of the two-way screw A move through threads; the movable frame is driven to push the two sets of sliding blocks to be close to each other, when the sliding blocks move, the pressure roller and the printing roller are driven to be close to each other, when the pressure roller and the printing roller move to proper positions, the motor A is closed, and at the moment, the paper printing pressure can be adjusted by changing the distance between the pressure roller and the printing roller.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a pressure regulating device for a printing machine. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate, which is then installed on the printing press. Then, ink is applied to the places with text and images on the printing plate by humans or the printing press, and then directly or indirectly transferred to paper or other substrates such as textiles, metal plates, plastics, and leather, thereby replicating printed products identical to the printing plate. The invention and development of the printing press has played an important role in the spread of human civilization and culture.

[0003] Most of the existing pressure regulating devices of printing machines apply pressure to the paper stock by simply adjusting the position of the pressure roller. However, to achieve embossing, both the upper and lower rollers must be able to contact the paper stock to apply pressure to the paper stock. However, changing the distance between the pressure rollers in this way does not produce a good pressure brushing effect. Therefore, the utility model provides a pressure regulating device for a printing machine. Utility Model Content

[0004] The utility model aims to solve the problem that most of the existing pressure regulating devices of printing machines in the prior art only apply pressure to paper by adjusting the position of the pressure roller, but the realization of embossing requires that both the upper and lower rollers can contact the paper to apply pressure to the paper, and the pressure brushing effect is not good after changing the distance between the pressure rollers in this way, and thus a pressure regulating device for a printing machine is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a printing press pressure adjustment device, comprising two support columns, the surfaces of the two support columns are provided with sliding grooves, the inner walls of the two sliding grooves are slidably connected to two sliding blocks, the four sliding blocks are grouped in pairs, and there are two groups in total. The surfaces of the two groups of sliding blocks are provided with adjustment components, the surface of one group of sliding blocks is rotatably connected to a pressure roller, and the surface of the other group of sliding blocks is rotatably connected to a printing roller.

[0006] Preferably, the adjustment assembly includes a bidirectional screw A and a bidirectional screw B, both ends of the bidirectional screw A are rotatably connected to the lower ends of the two support columns, and a motor A is installed at one end of the bidirectional screw A, both ends of the bidirectional screw B are rotatably connected to the upper ends of the two support columns, and two sliding sleeves are threadedly connected to the surfaces of the bidirectional screw B and the bidirectional screw A, the upper ends of the sliding sleeves are fixedly connected to a movable frame, and one end of the movable frame is fixedly connected to the surface of the sliding block, and one end of the bidirectional screw A and the bidirectional screw B are provided with a transmission assembly.

[0007] Preferably, the transmission assembly includes an active pulley shaft, the surface of which is fixedly connected to one end of the bidirectional screw A, and a transmission belt is slidably sleeved on the surface of the active pulley shaft, the other end of the transmission belt is slidably connected to a driven pulley shaft, and the surface of the driven pulley shaft is fixedly connected to one end of the bidirectional screw B.

[0008] Preferably, one end of the printing roller passes through the sliding block and is installed with a motor B.

[0009] Preferably, two limit plates are arranged between the two groups of sliding blocks, and the limit plates are fixedly connected to the inner wall of the sliding groove.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] In the utility model, by arranging support columns, sliding grooves, sliding blocks, pressure rollers, printing rollers, adjustment components and transmission components, the output end of motor A can drive bidirectional screw A to rotate, bidirectional screw A drives active pulley shaft to rotate, active pulley shaft drives driven pulley shaft to rotate through transmission belt, driven pulley shaft drives bidirectional screw B to rotate, so that bidirectional screw B and the sliding sleeves on the surfaces of bidirectional screw A are moved by means of threads, driving the movable frame to push the two groups of sliding blocks closer to each other, and the pressure roller and printing roller are also driven closer to each other during the movement of the sliding blocks. When the pressure roller and printing roller move to appropriate positions, motor A is turned off. At this time, the distance between the pressure roller and the printing roller is changed, so that the pressure of paper printing can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the side structure.

[0014] Legend: 1. Support column; 2. Sliding groove; 3. Sliding block; 4. Pressure roller; 5. Printing roller; 6. Movable frame; 7. Sliding sleeve; 8. Bidirectional screw A; 9. Bidirectional screw B; 10. Motor A; 11. Motor B; 12. Limiting plate; 13. Active pulley shaft; 14. Driven pulley shaft; 15. Transmission belt. DETAILED DESCRIPTION

[0015] Reference Figure 1-2As shown, the utility model provides a technical solution: a printing press pressure regulating device, comprising two support columns 1, the surfaces of the two support columns 1 are provided with sliding grooves 2, the inner walls of the two sliding grooves 2 are slidably connected with two sliding blocks 3, four sliding blocks 3 are grouped in twos, and there are two groups in total, and the surfaces of the two groups of sliding blocks 3 are provided with adjustment components, the surface of one group of sliding blocks 3 is rotatably connected with a pressure roller 4, and the surface of the other group of sliding blocks 3 is rotatably connected with a printing roller 5. When the printing pressure needs to be adjusted, the adjustment component is first turned on, and the two groups of sliding blocks 3 are pushed closer to each other through the adjustment component. When the sliding blocks 3 move, the pressure roller 4 and the printing roller 5 are also driven closer to each other. When the pressure roller 4 and the printing roller 5 move to the appropriate position, the adjustment component is closed. At this time, the distance between the pressure roller 4 and the printing roller 5 is changed, so that the pressure of paper printing can be adjusted.

[0016] Reference Figure 1 As shown, in this embodiment: the adjusting component includes a bidirectional screw A8 and a bidirectional screw B9, both ends of the bidirectional screw A8 are rotatably connected to the lower ends of the two support columns 1, and one end of the bidirectional screw A8 is installed with a motor A10, both ends of the bidirectional screw B9 are rotatably connected to the upper ends of the two support columns 1, and the surfaces of the bidirectional screw B9 and the bidirectional screw A8 are threadedly connected with two sliding sleeves 7, the upper ends of the sliding sleeves 7 are fixedly connected with a movable frame 6, and one end of the movable frame 6 is fixedly connected to the surface of the sliding block 3, and the bidirectional screw A8 and one end of the bidirectional screw B9 are provided with a transmission component, and the motor A10 is turned on, and the output end of the motor A10 drives the bidirectional screw A8 to rotate, and during the rotation of the bidirectional screw A8, the bidirectional screw B9 is also driven to rotate by the transmission component, and the bidirectional screw B9 and the sliding sleeve 7 on the surface of the bidirectional screw A8 are moved by means of threads, thereby driving the movable frame 6 to rotate, and during the rotation of the movable frame 6, the sliding block 3 is pushed to slide in the sliding groove 2, thereby adjusting the distance between the pressure roller 4 and the printing roller 5.

[0017] Reference Figure 2As shown, specifically, the transmission assembly includes an active pulley shaft 13, the surface of the active pulley shaft 13 is fixedly connected to one end of the bidirectional screw A8, and the surface sliding sleeve 7 of the active pulley shaft 13 has a transmission belt 15, the other end of the transmission belt 15 is slidably connected to a driven pulley shaft 14, and the surface of the driven pulley shaft 14 is fixedly connected to one end of the bidirectional screw B9, when the bidirectional screw A8 drives the active pulley shaft 13 to rotate, the active pulley shaft 13 rotates and the driven pulley shaft 14 is driven to rotate through the transmission belt 15, and the driven pulley shaft 14 drives the bidirectional screw B9. 9 is rotated to achieve the effect of synchronous regulation. One end of the printing roller 5 passes through the sliding block 3 and is installed with a motor B11. After the motor B11 is turned on, the output end of the motor B11 drives the printing roller 5 to rotate, so that the surface of the paper can be printed. Two limit plates 12 are arranged between the two groups of sliding blocks 3, and the limit plates 12 are fixedly connected to the inner wall of the sliding groove 2. By arranging the limit plates 12 in the sliding groove 2, the sliding blocks 3 can be blocked to prevent the pressure roller 4 and the printing roller 5 from being too close to each other, thereby causing friction and causing equipment damage.

[0018] Working principle: when the printing pressure needs to be adjusted, first turn on the motor A10, and the output end of the motor A10 drives the bidirectional screw A8 to rotate. During the rotation of the bidirectional screw A8, the active pulley shaft 13 is driven to rotate. During the rotation of the active pulley shaft 13, the driven pulley shaft 14 is driven to rotate through the transmission belt 15. The driven pulley shaft 14 drives the bidirectional screw B9 to rotate, so that the bidirectional screw B9 and the sliding sleeve 7 on the surface of the bidirectional screw A8 are moved by means of the thread, thereby driving the movable frame 6 to rotate. During the rotation of the movable frame 6, the sliding block 3 is pushed to slide in the sliding groove 2, thereby pushing the two groups of sliding blocks 3 closer to each other. When the sliding block 3 moves, it drives the pressure roller 4 and the printing roller 5 closer to each other. When the pressure roller 4 and the printing roller 5 move to the appropriate position, turn off the motor A10. At this time, by changing the distance between the pressure roller 4 and the printing roller 5, the pressure of paper printing can be adjusted.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A printing press pressure regulating device, comprising two support columns (1), characterized in that: The surfaces of the two support columns (1) are each provided with a sliding groove (2), the inner walls of the two sliding grooves (2) are each slidably connected to two sliding blocks (3), the four sliding blocks (3) are grouped in pairs, and there are two groups in total, and the surfaces of the two groups of sliding blocks (3) are each provided with an adjustment component, the surface of one group of sliding blocks (3) is rotatably connected to a pressure roller (4), and the surface of the other group of sliding blocks (3) is rotatably connected to a printing roller (5).

2. A printing press pressure regulating device according to claim 1, characterized in that: The adjustment assembly comprises a bidirectional screw rod A (8) and a bidirectional screw rod B (9), the two ends of the bidirectional screw rod A (8) being rotatably connected to the lower ends of the two support columns (1), and one end of the bidirectional screw rod A (8) being installed with a motor A (10), the two ends of the bidirectional screw rod B (9) being rotatably connected to the upper ends of the two support columns (1), and the surfaces of the bidirectional screw rod B (9) and the bidirectional screw rod A (8) being threadedly connected with two sliding sleeves (7), the upper ends of the sliding sleeves (7) being fixedly connected with a movable frame (6), and one end of the movable frame (6) being fixedly connected with the surface of the sliding block (3), and one end of the bidirectional screw rod A (8) and the bidirectional screw rod B (9) being provided with a transmission assembly.

3. A printing press pressure regulating device according to claim 2, characterized in that: The transmission assembly comprises an active pulley shaft (13), the surface of which is fixedly connected to one end of a bidirectional screw rod A (8), and a surface sliding sleeve (7) of the active pulley shaft (13) is provided with a transmission belt (15), the other end of which is slidably connected to a driven pulley shaft (14), and the surface of the driven pulley shaft (14) is fixedly connected to one end of a bidirectional screw rod B (9).

4. A printing press pressure regulating device according to claim 1, characterized in that: One end of the printing roller (5) passes through the sliding block (3) and is installed with a motor B (11).

5. A printing press pressure regulating device according to claim 1, characterized in that: Two limiting plates (12) are arranged between the two groups of sliding blocks (3), and the limiting plates (12) are fixedly connected to the inner wall of the sliding groove (2).

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