Plate roll drive
By using a linear guide rail and a motor-driven printing roller device, the problems of large gear transmission errors and poor adaptability of printing roller length in traditional printing presses are solved, achieving high precision and stable printing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN CITY JIAMING PRINTING & PACKING MASCH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-02
AI Technical Summary
The gear drive of the printing plate rollers in traditional printing presses results in large precision errors, frequent wear, and difficulty in adapting to different roller lengths, affecting printing accuracy and compressive stress.
The movable frame connected by linear slide rails and driven by a motor, combined with a cylinder and sleeve structure, enables flexible connection and precise control of the printing roller joint, eliminates gear wear errors, and enhances the rigidity and compressive stress of the printing roller.
It improves the printing accuracy and compressive stress of the printing roller, reduces errors caused by gear wear, has a faster response speed, and can adapt to the needs of different printing roller lengths.
Smart Images
Figure CN224311426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a printing roller driving device, belonging to the field of printing machinery technology. Background Technology
[0002] Traditional printing press rollers typically use mechanical shaft gear drives. After prolonged operation, gear wear leads to increasing rotational accuracy errors in the roller, resulting in a significant decrease in printing precision and necessitating frequent calibration and replacement. Furthermore, the relatively long response time of gear drives further increases the likelihood of errors. Different printing requirements necessitate roller lengths; to accommodate these variations, a top shaft structure is added, extending the transmission torque and reducing the compressive stress the roller can withstand, which also negatively impacts precise printing. Utility Model Content
[0003] To overcome the above-mentioned shortcomings, this utility model provides a printing roller driving device that can adapt to the use of printing rollers of different lengths while ensuring the accuracy and pressure of the printing roller.
[0004] To achieve this objective, the structure adopted in this utility model is as follows: a printing roller drive device, including a large support frame, a movable frame connected to the large support frame via a linear slide rail, a motor mounted on the movable frame, the motor connected to the printing roller joint via a top printing plate shaft, a piston rod of a cylinder connected to the bottom of the movable frame, and the cylinder fixed on the large support frame.
[0005] A sleeve is provided between the motor and the printing roller joint, the top plate shaft is located inside the sleeve, and an oil pipe is provided on the sleeve.
[0006] One end of the large support is provided with a tubular sleeve frame, and the sleeve is inserted into the sleeve frame through a copper sleeve.
[0007] The cylinder is located at the bottom of the large support, which has a notch in the center. A support is located at the bottom of the movable frame, and the support passes through the notch and connects to the piston rod of the cylinder.
[0008] Its beneficial effects are: the structure of this utility model is reasonable and ingenious. It uses a cylinder to push the movable frame, so that the printing roller joint can adapt to the connection of printing rollers of different lengths. The motor directly drives the printing roller joint and controls the speed separately, making the response faster. At the same time, it eliminates the error caused by gear wear and ensures the accuracy of printing roller. Attached Figure Description
[0009] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:
[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0011] Figure 2 This is a side view of the structure of this utility model. Detailed Implementation
[0012] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0013] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components; a fixed connection can be welding or adhesive bonding. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0015] like Figure 1 , Figure 2 The printing roller drive device shown includes a large support 1, which is fixed to the printing press. A movable frame 2 is connected to the large support 1 via one or more linear guide rails 6. A motor 4 is mounted on the movable frame 2, and the motor 4 is connected to the printing roller joint 3 via a top plate shaft, allowing the motor 4 to directly drive the printing roller joint 3, thus accelerating the response speed of the printing roller joint 3 and eliminating the increased error caused by gear wear in traditional gear transmissions. The piston rod of a cylinder 5 is connected to the bottom of the movable frame 2, and the cylinder 5 is fixed to the large support 1. The cylinder 5 is used to move the motor 4 and the printing roller joint 3 horizontally to accommodate printing rollers of different lengths.
[0016] A sleeve 7 is provided between the motor 4 and the printing roller joint 3. The top plate shaft is located inside the sleeve 7. An oil pipe 8 is provided on the sleeve 7. The oil pipe 8 injects lubricating oil into the gap between the sleeve and the top plate shaft. This reduces the wear of the top plate shaft during rotation and ensures the rigidity of the top plate shaft, thereby increasing the compressive stress that the printing roller can bear and ensuring the printing effect.
[0017] One end of the large support 1 is provided with a tubular sleeve frame 9. The sleeve 7 is inserted into the sleeve frame 9 through a copper sleeve. The sleeve frame 9 provides effective support for the sleeve 7 and the motor 4, ensuring the stability of the overall device drive.
[0018] The cylinder 5 is located at the bottom of the large support 1, and the large support 1 has a notch in the center. The bottom of the movable frame 2 is provided with a support 10, which passes through the notch and is connected to the piston rod of the cylinder 5. The overall structure is more compact and facilitates the modification of the printing machine.
[0019] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A printing roller drive device, comprising a large support (1), characterized in that, The movable frame (2) is connected to the large support (1) via a linear slide rail (6). A motor (4) is installed on the movable frame (2). The motor (4) is connected to the printing roller joint (3) via the top plate shaft. The piston rod of the cylinder (5) is connected to the bottom of the movable frame (2). The cylinder (5) is fixed on the large support (1).
2. The printing roller driving device according to claim 1, characterized in that, A sleeve (7) is provided between the motor (4) and the printing roller joint (3), the top plate shaft is located inside the sleeve (7), and an oil pipe (8) is provided on the sleeve (7).
3. The printing roller driving device according to claim 1, characterized in that, One end of the large support (1) is provided with a tubular sleeve frame (9), and the sleeve (7) is inserted into the sleeve frame (9) through a copper sleeve.
4. The printing roller driving device according to claim 1, characterized in that, The cylinder (5) is located at the bottom of the large support (1). The large support (1) has a notch in the center. The movable frame (2) has a support (10) at the bottom. The support (10) passes through the notch and is connected to the piston rod of the cylinder (5).