A printing press with a pressure roller mechanism

Abstract

The utility model provides a kind of pressure roller mechanism for printing machine, including the support wallboard 1 of relative arrangement, and the main roller 9 and rubber roller 20 between the support wallboard, the rubber roller 20 can abut against the main roller 9, further include the vice roller 22 in the other side of the rubber roller 20 and the rubber roller 20 abut against setting, and for pulling the vice roller 22 abut against or away from the rubber roller 20, pull the traction unit of the rubber roller 20 abut against or away from main roller 9.The utility model adds a movable vice roller to press rubber roller, is clamped by the main roller and vice roller of the front and rear two sides of rubber roller, reduces rubber roller deformation;Meanwhile, material film is wound between three to increase the winding length of material film to increase friction, reach smooth winding, when pressing material film traction, solve the material film slip on rubber roller, winding is not neat and run off, rubber roller is pressed and deforms etc.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a pressure roller mechanism for a printing press. Background Technology

[0002] In existing printing equipment, the film is threaded between the film winding roller and the main roller. The film moves through the friction between the film and the roller and the main roller. Typically, cylinders at both ends of the roller push it to press against the main roller. Because the roller surface is coated with adhesive, compression can easily cause deformation in the middle of the roller. When gaps appear between the roller and the main roller, the film (thickness 0.01mm-0.04mm) cannot be properly held, leading to slippage on the roller during take-up, resulting in uneven winding and misalignment. This problem is exacerbated when the film roll is wide, necessitating a solution. Summary of the Invention

[0003] This utility model provides a pressure roller mechanism for a printing press, including a support wall plate (1) arranged opposite to each other, and a main roller 9 and a rubber roller 20 arranged between the support wall plates. The rubber roller 20 can abut against the main roller 9. It also includes a secondary roller 22 arranged on the other side of the rubber roller 20 and abutting against the rubber roller 20, and a traction unit for pulling the secondary roller 22 to abut against or away from the rubber roller 20, and pulling the rubber roller 20 to abut against or away from the main roller 9.

[0004] This application adds an additional movable auxiliary roller to press the rubber roller. The main roller and auxiliary roller on both sides of the rubber roller clamp the roller, reducing its deformation. At the same time, the film is wound between the three rollers to increase the winding length and friction, thus achieving smooth winding. When pressing and pulling the film, this application solves the problems of film slippage on the rubber roller, uneven winding and deviation, and deformation of the rubber roller when pressed.

[0005] Preferably, the traction unit is disposed in two opposing accommodating cavities 3 extending from the supporting wall panel;

[0006] The traction unit includes: a first guide rail 12 fixedly disposed at the bottom of the accommodating cavity, a first slider 13, 14 sliding on the first guide rail 12, a rubber roller sliding seat 16 disposed on the first slider 13, 14 for supporting the rubber roller 20, and a first stop block 15 disposed at one end of the first guide rail 12 for limiting the movement position of the first slider 13, 14.

[0007] The rubber roller sliding seat 16 is provided with a second guide rail 17, the second guide rail 17 is provided with a second slider 18, the second slider 18 is provided with a secondary roller sliding seat 24 for supporting the secondary roller 22, and a second stop 19 is provided at one end of the second guide rail 17 for limiting the movement position of the secondary roller sliding seat 24; and a cylinder for controlling the movement of the secondary roller sliding seat 24.

[0008] The above structural design allows the auxiliary roller 22 to be against or away from the rubber roller 20, and the rubber roller 20 to be against or away from the main roller 9.

[0009] Preferably, the cylinder 25 is located at the free end of the accommodating cavity 3. In this way, the cylinder 25 can act as a power source to drive the auxiliary roller 22 and the rubber roller 20 to reciprocate.

[0010] Preferably, the main roller 9 is driven by a drive motor through a transmission unit; the transmission unit includes a first synchronous pulley 4 connected to the output end of the drive motor, a second synchronous pulley 6 connected to the main roller 9, and a synchronous belt 5 disposed between the synchronous pulley 4 and the synchronous pulley 6. In this way, the drive motor can drive the main roller 9 to rotate through the transmission unit.

[0011] The printing press roller mechanism of this utility model presses the rubber roller by adding a movable auxiliary roller. The main roller and auxiliary roller on the front and rear sides of the rubber roller clamp the roller, reducing its deformation. At the same time, the film is wound between the three to increase the winding length of the film and increase the friction, so as to achieve smooth winding. When pressing and pulling the film, it solves the problems of film slippage on the rubber roller, uneven winding and deviation, and deformation of the rubber roller when it is pressed. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of the pressure roller mechanism for a printing press according to Embodiment 1 of this utility model;

[0013] Figure 2 A cross-sectional view of the traction unit in Embodiment 1 of this utility model;

[0014] Figure 3 A partially enlarged structural schematic diagram of the traction unit and transmission unit in Embodiment 1 of this utility model;

[0015] Among them, 1. Support wall panel; 3. Accommodating cavity; 4. First synchronous pulley; 5. Synchronous belt; 6. Second synchronous pulley; 9. Main roller; 12. First guide rail; 13, 14. First slider; 15. First stop block; 16. Rubber roller sliding seat; 17. Second guide rail; 18. Second slider; 19. Second stop block; 20. Rubber roller; 22. Auxiliary roller; 24. Auxiliary roller sliding seat; 25. Cylinder. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] Example 1:

[0018] like Figure 1-3As shown, this embodiment provides a pressure roller mechanism for a printing press, including a support wall plate 1 disposed opposite to each other, and a main roller 9 and a rubber roller 20 disposed between the support wall plates. The rubber roller 20 can abut against the main roller 9. It also includes a secondary roller 22 disposed on the other side of the rubber roller 20 and abutting against the rubber roller 20, and a traction unit for pulling the secondary roller 22 to abut against or move away from the rubber roller 20, and pulling the rubber roller 20 to abut against or move away from the main roller 9.

[0019] This application adds an additional movable auxiliary roller to press the rubber roller. The main roller and auxiliary roller on both sides of the rubber roller clamp the roller, reducing its deformation. At the same time, the film is wound between the three rollers to increase the winding length and friction, thus achieving smooth winding. When pressing and pulling the film, this application solves the problems of film slippage on the rubber roller, uneven winding and deviation, and deformation of the rubber roller when pressed.

[0020] Preferably, the traction unit is disposed in two opposing accommodating cavities 3 extending from the supporting wall panel;

[0021] The traction unit includes: a first guide rail 12 fixedly disposed at the bottom of the accommodating cavity, a first slider 13, 14 sliding on the first guide rail 12, a rubber roller sliding seat 16 disposed on the first slider 13, 14 for supporting the rubber roller 20, and a first stop block 15 disposed at one end of the first guide rail 12 for limiting the movement position of the first slider 13, 14.

[0022] The rubber roller sliding seat 16 is provided with a second guide rail 17, the second guide rail 17 is provided with a second slider 18, the second slider 18 is provided with a secondary roller sliding seat 24 for supporting the secondary roller 22, and a second stop 19 is provided at one end of the second guide rail 17 for limiting the movement position of the secondary roller sliding seat 24; and a cylinder for controlling the movement of the secondary roller sliding seat 24.

[0023] The above structural design allows the auxiliary roller 22 to be against or away from the rubber roller 20, and the rubber roller 20 to be against or away from the main roller 9.

[0024] Preferably, the cylinder 25 is located at the free end of the accommodating cavity 3. In this way, the cylinder 25 can act as a power source to drive the auxiliary roller 22 and the rubber roller 20 to reciprocate.

[0025] Preferably, the main roller 9 is driven by a drive motor through a transmission unit; the transmission unit includes a first synchronous pulley 4 connected to the output end of the drive motor, a second synchronous pulley 6 connected to the main roller 9, and a synchronous belt 5 disposed between the synchronous pulley 4 and the synchronous pulley 6. In this way, the drive motor can drive the main roller 9 to rotate through the transmission unit.

[0026] Work process:

[0027] The output of the drive motor drives the first synchronous pulley 4, which in turn drives the synchronous belt 5. The synchronous belt 5 drives the second synchronous pulley 6, which in turn drives the main roller 9 to rotate. The auxiliary roller 22 is indirectly mounted on the auxiliary roller sliding seat (24) via bearings, and the rubber roller 20 is indirectly mounted on the rubber roller sliding seat 16 via bearings.

[0028] When cylinder 25 pushes the auxiliary roller sliding seat (24) to move towards the rubber roller 20, it drives the auxiliary roller 22 to gradually approach the rubber roller 20. When the two come into contact, the power is transmitted to the rubber roller sliding seat 16 through the second guide rail 17. The rubber roller sliding seat 16 drives the rubber roller 20 to continue moving on the first guide rail 12, so that the rubber roller 20 comes into contact with the main roller 9, completing the pressing of the rubber roller 20 by the main roller 9 and the auxiliary roller 22 on both sides. A film is wound between the auxiliary roller 22, the rubber roller 20 and the main roller 9 for the purpose of pressing the film and forming a pulling effect on the film.

[0029] When the cylinder 25 retracts, it will drive the auxiliary roller sliding seat (24) to separate the auxiliary roller 22 from the rubber roller 20. Under the drive of the cylinder 25, the auxiliary roller sliding seat (24) will pull the stop block 19 that fixes the rubber roller sliding seat 16, thereby dragging the rubber roller 20 on the rubber roller sliding seat 16 to separate from the main roller 9, so that there is space between the main roller A9, the rubber roller 20 and the auxiliary roller 22 to facilitate the installation of the film.

[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A pressure roller mechanism for a printing press, comprising opposing support wall plates (1), and a main roller (9) and a rubber roller (20) disposed between the support wall plates, wherein the rubber roller (20) is capable of abutting against the main roller (9), characterized in that, It also includes a secondary roller (22) disposed on the other side of the rubber roller (20) and abutting against the rubber roller (20), and a traction unit for pulling the secondary roller (22) against or away from the rubber roller (20) and pulling the rubber roller (20) against or away from the main roller (9).

2. The printing press roller mechanism as described in claim 1, characterized in that, The traction unit is disposed in two opposing accommodating cavities (3) extending from the supporting wall plate; The traction unit includes: a first guide rail (12) fixedly disposed at the bottom of the accommodating cavity, a first slider (13, 14) sliding on the first guide rail (12), a rubber roller sliding seat (16) disposed on the first slider (13, 14) for supporting the rubber roller (20), and a first stop (15) disposed at one end of the first guide rail (12) for limiting the movement position of the first slider (13, 14). The rubber roller slide seat (16) is provided with a second guide rail (17), the second guide rail (17) is provided with a second slider (18), the second slider (18) is provided with a secondary roller slide seat (24) for supporting the secondary roller (22), and a second stop (19) is provided at one end of the second guide rail (17) for limiting the movement position of the secondary roller slide seat (24); and a cylinder (25) for controlling the movement of the secondary roller slide seat (24).

3. The printing press pressure roller mechanism as described in claim 2, characterized in that, The cylinder (25) is located at the free end of the accommodating cavity (3).

4. The printing press pressure roller mechanism as described in claim 1, characterized in that, The main roller (9) is driven by a drive motor through a transmission unit; the transmission unit includes a first synchronous pulley (4) connected to the output end of the drive motor, a second synchronous pulley (6) connected to the main roller (9), and a synchronous belt (5) disposed between the synchronous pulley (4) and the synchronous pulley (6).

Images