A driving device for an on-roller of a water squeezing roller in a printing plate production line

Abstract

This utility model provides a driving device for the upper roller of a dewatering roller in a printing plate production line, comprising: a frame, the frame having a base and two support frames spaced apart on the sides of the base; an upper roller at the upper end of the support frames and a lower roller at the lower end of the support frames; a pair of gear transmission components are provided on one side of the upper roller, and a motor is provided at the end of the transmission components away from the upper roller; the frame is also provided with a servo controller, the output end of the controller being electrically connected to the input end of the motor. This utility model directly drives the upper roller with a motor, reducing slippage and avoiding scratches; the cylinder can adjust the pressure of the upper roller of the dewatering roller, improving the dewatering effect and reducing drying energy consumption; the structure is simple and highly practical.

Description

Technical Field

[0001] This utility model relates to the field of printing plate equipment technology, and in particular to a drive device for the upper roller of the dewatering roller on a printing plate production line. Background Technology

[0002] A dewatering roller is a specialized device that uses mechanical pressure to dehydrate materials. Its core components are one or more pairs of counter-rotating rubber rollers. The pressure between the rollers forces the material to release free water. In the printing plate production process, the dewatering roller is used to squeeze out water from the surface of the plate, reducing the time and energy consumption of the subsequent drying process.

[0003] Reference Figure 1 As shown, in existing dewatering roller equipment, the motor drives the lower roller to rotate through the transmission assembly. The rotation of the lower roller drives the upper roller to rotate, conveying the printing plate to the next process. However, in general printing plates, the patterns or designs are on the side of the plate facing the upper roller. Since the upper roller is driven to rotate by the lower roller, slippage is prone to occur during the dewatering process. Whenever slippage occurs, the upper roller will leave scratches on the plate, affecting the quality of the printing plate and causing the product to be scrapped. Utility Model Content

[0004] This invention provides a drive device for the upper roller of the dewatering roller on a printing plate production line, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides an upper roller drive system for a squeezing roller, comprising:

[0007] The frame includes a base and two support frames spaced apart on the sides of the base. Each support frame has an upper roller at its upper end and a lower roller adapted to the upper roller at its lower end. A pair of gear transmission assemblies are provided on one side of the upper roller, with a motor mounted at the end of each transmission assembly furthest from the upper roller. The frame also includes a servo controller, the output of which is electrically connected to the input of the motor.

[0008] As a further improvement, the top of the support frame is provided with a cylinder at the end corresponding to each of the upper rollers, the cylinder being configured to adjust the pressure between the upper roller and the lower roller.

[0009] As a further improvement, the gear transmission assembly includes a driven member and a driving member, the driven member being connected to the upper roller, the driving member being connected to the output end of the motor, and the transmission ratio i of the transmission assembly being 3.

[0010] A printing plate production line includes a dewatering roller drive device as described in any of the preceding claims.

[0011] The beneficial effects of this utility model are:

[0012] This invention directly drives the upper roller to rotate via a motor, changing the existing transmission method where the lower roller drives the upper roller. This avoids slippage caused by passive transmission, prevents the upper roller from leaving scratches on the printing plate surface, reduces raw material waste, and improves the quality of the printing plate. Furthermore, by adopting a gear transmission method, the rotational speed of the upper roller is easier to control and has a wider control range. The cylinder set at the top of the support frame can precisely adjust the pressure between the upper and lower rollers through a controller to achieve the best water squeezing effect of the squeezing roller. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the existing water-squeezing roller device.

[0015] Figure 2 This is a side view schematic diagram of the overall structure of the upper roller drive device for the dewatering roller on a printing plate production line according to this utility model.

[0016] Figure 3 This is a front view schematic diagram of the overall structure of the upper roller drive device for the dewatering roller on a printing plate production line according to this utility model.

[0017] In the diagram: 1-frame, 2-upper roller, 3-lower roller, 4-gear transmission assembly, 5-motor, 6-cylinder, 7-printing plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] Reference Figure 2-3 As shown, a printing plate production line is provided with an upper roller drive system for multiple dewatering rollers. The upper roller drive system for the dewatering rollers includes:

[0021] The frame 1 is equipped with a base and two support frames spaced apart on the sides of the base. The upper end of each support frame has an upper roller 2, and the lower end of each support frame has a lower roller 3 adapted to the upper roller 2. A pair of gear transmission components 4 are provided on one side of the upper roller 2, and a motor 5 is provided at the end of the transmission components 4 furthest from the upper roller 2. The frame 1 is also equipped with a servo controller, the output of which is electrically connected to the input of the motor 5. The motor 5 directly drives the upper roller 2 to rotate, changing the existing transmission method where the lower roller 3 drives the upper roller 2. This avoids slippage caused by passive transmission, prevents the upper roller 2 from leaving scratches on the printing plate surface, reduces raw material waste, and improves product quality.

[0022] Furthermore, the frame 1 is provided with a base, on which two support frames are spaced apart. The upper end of the support frame is provided with an upper roller 2 along the printing plate moving direction, and the lower end of the support frame is provided with a lower roller 3 adapted to the upper roller 2 along the printing plate moving direction. The support frame is provided with a sliding groove at the corresponding position of the upper roller 2 and the lower roller 3. The sliding groove facilitates the installation and removal of the upper roller 2 and the lower roller 3. The upper roller 2 and the lower roller 3 are hoisted by a crane set above the frame 1. The sliding groove on the support frame allows the two ends of the upper roller 2 and the lower roller 3 to move within the sliding groove. A water squeezing space is formed between the upper roller 2 and the lower roller 3 for squeezing out the water in the printing plate when it passes through.

[0023] The frame 1 is also equipped with a servo controller. The output end of the servo controller is electrically connected to the input end of the motor 5. The top of the support frame is equipped with a cylinder 6 at the end of each upper roller 2. The push rod inside the cylinder 6 abuts against the end of the upper roller 2. By applying downward pressure from the cylinder 6, the upper roller 2 is driven to move downward, thereby adjusting the squeezing between the upper roller 2 and the lower roller 3. Furthermore, by adjusting the pressure between the upper roller 2 and the lower roller 3, the squeezing effect of the squeezing roller equipment can be improved, reducing the time and energy consumption of the subsequent drying process.

[0024] Both the upper roller 2 and the lower roller 3 are fitted with bearing assemblies at both ends. The bearing assemblies are connected to the support frame through connectors, which ensures the stability of the connection and allows the upper roller 2 to move up and down when driven by the cylinder 6.

[0025] Furthermore, referring to Figure 1 As shown, in the traditional driving method, the lower roller 3a is directly driven by the motor 5a, while the upper roller 2a is driven by the lower roller 3a. The lower roller 3a rotates at the same speed as the motor 5a, but the upper roller 2a and the lower roller 3a cannot maintain the same speed. Therefore, when the printing plate is being conveyed, the upper and lower surfaces of the plate experience different forces. Consequently, the upper roller 2a is prone to leaving scratches on the upper surface of the plate, i.e., the side with textures or patterns. To improve the quality of the printing plate, the transmission assembly 4 is positioned on one side of the upper roller 2. The transmission assembly 4 has a motor 5 at its end furthest from the upper roller 2. The transmission assembly 4 can... The transmission assembly 4 includes a driven member and a driving member, which are connected to the end of the upper roller 2 and fixed to the end of the upper roller 2 by a bushing. The driving member is connected to the output end of the motor 5. In this embodiment, the transmission assembly 4 is set as a gear transmission. The upper roller 2 is rotated by meshing the driven gear and the driving gear. The speed of the upper roller 2 is controlled by controlling the speed of the motor 5. In order to improve the water squeezing effect of the squeezing roller equipment and reduce the probability of slippage, the transmission ratio i of the transmission assembly 4 is set to 3, that is, the ratio of the number of teeth of the driven gear to the number of teeth of the driving gear is 3:1.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drive device for the upper roller of a dewatering roller in a printing plate production line, characterized in that, include: The frame (1) is provided with a base and two support frames spaced apart on the side of the base; The upper end of the support frame has an upper roller (2), and the lower end of the support frame has a lower roller (3) that is adapted to the upper roller (2). A pair of gear transmission components (4) are provided on one side of the upper roller (2), and a motor (5) is provided at the end of the transmission component (4) away from the upper roller (2). The frame (1) is also equipped with a servo controller, the output of which is electrically connected to the input of the motor (5).

2. The upper roller drive device for the dewatering roller on a printing plate production line according to claim 1, characterized in that, The top of the support frame is provided with a cylinder (6) at the end of each of the upper rollers (2), the cylinder (6) being configured to adjust the pressure between the upper roller (2) and the lower roller (3).

3. The upper roller drive device for the dewatering roller in a printing plate production line according to claim 1, characterized in that, The gear transmission assembly (4) includes a driven member and a driving member. The driven member is connected to the upper roller (2), and the driving member is connected to the output end of the motor (5). The transmission ratio of the transmission assembly (4) is i=3.

4. A printing plate production line, characterized in that, Includes a dewatering roller drive device for a printing plate production line as described in any one of claims 1 to 3.

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