Rubber cylinder adjusting device of offset press
By designing a combination device of driving rods and screws driven by side plates, rollers, sliders and servo motors on the offset press, the problem of unstable position adjustment of the rubber cylinder is solved, and high-precision and stable position adjustment of the rubber cylinder is achieved, improving the improvement of the position of the rubber cylinder. Productivity.
Patent Information
- Application Number
- CN202421146552.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-24
AI Technical Summary
After the existing offset printing machine replaces the material or thickness of the substrate, the position adjustment of the rubber cylinder requires manual operation, resulting in a long and unstable commissioning time, affecting the production progress.
A rubber cylinder adjustment device including a side plate, a roller shaft, a slider, a servo motor driven drive rod and a screw rod is designed, and the screw rod is driven by a first conical gear to adjust the position of the slider, combining with the second motor and The axial locking cylinder ensures the rotation of the rubber cylinder is stable.
It realizes high accuracy and stability of rubber cylinder position adjustment, reduces debugging time and improves production efficiency.
Smart Images
Figure CN222271571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a component on an offset printing machine, in particular to a rubber cylinder adjusting device of the offset printing machine. Background Art
[0002] An offset printing press is a type of lithographic printing press. During printing, the printed image is first printed on a rubber cylinder from a printing plate, and then transferred from the rubber cylinder to paper. According to the number of colors printed in one pass, it can be divided into single-color, two-color, four-color and multi-color printing presses; according to the maximum paper format it can print, it can be divided into small offset printing presses, six-mo, four-mo, double-mo and full-sheet printing presses.
[0003] During production, the rubber cylinder embosses the printed image on the substrate. After changing the material or thickness of the substrate, the display effect on the substrate may be too light or too dark. Generally, the installation positions on both sides of the rubber cylinder are manually knocked and moved to change the position of the rubber cylinder. This method requires experienced operators to complete and takes a long time to debug. It is extremely unreliable and affects the progress and schedule of production. Utility Model Content
[0004] In order to solve the above problems, the purpose of the utility model is to provide a rubber cylinder adjusting device for an offset printing press with high adjustment accuracy and stability.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rubber cylinder adjustment device for an offset printing machine, comprising side plates and a rubber cylinder, the rubber cylinder being installed between the side plates, roller shafts being respectively arranged at both ends of the rubber cylinder, characterized in that: a guide groove is arranged on the side plate, a slide plate sliding along the guide groove is arranged on the guide groove, the roller shaft is rotatably installed on the slide plate through a bearing, a driving rod driven by a first motor is arranged between the side plates, a first bevel gear corresponding to the slide plate is arranged on the driving rod, a screw rod connected to the screw rod with a threaded transmission is arranged on the slide plate, a second bevel gear meshing with the first bevel gear for transmission is arranged at the end of the screw rod, a second motor is arranged on the outer side of the slide plate on one side of the roller shaft, a gear transmission is passed between the end of the roller shaft and the output end of the second motor, an axial locking cylinder is also arranged on the side plate, a rotatable pressing sleeve is connected to the output rod of the axial locking cylinder, the pressing sleeve is sleeved on the roller shaft, and both the first motor and the second motor are servo motors.
[0006] Two connecting rods are connected between the slide plates, and supporting arms are respectively installed on both sides of the two connecting rods. Two rollers are arranged on the supporting arms, and the rubber tube contacts the two rollers.
[0007] In the structure of the utility model, the first motor drives the first bevel gear to rotate, which in turn drives the lead screw to rotate, and then the lead screw thread drives the adjustment slide to move, so that the position adjustment accuracy of the rubber tube is high. At the same time, the second motor and the axial locking cylinder make the rotation of the rubber tube more stable and reliable, thus achieving a technical effect of high adjustment accuracy and stability.
[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;
[0010] Figure 2 It is a cross-sectional view of a specific implementation mode of the utility model;
[0011] Figure 3 It is a partial stereogram of a specific implementation method of the utility model. DETAILED DESCRIPTION
[0012] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.
[0013] like Figure 1-Figure 3 As shown, this embodiment discloses a rubber cylinder adjustment device for an offset printing press, comprising side plates 2 and a rubber cylinder 1, wherein the rubber cylinder 1 is installed between the side plates 2, roller shafts 11 are respectively arranged at both ends of the rubber cylinder 1, a guide groove 21 is arranged on the side plate 2, a slide plate 3 sliding along the guide groove 21 is arranged on the guide groove 21, the slide plate 3 is slidably guided with the guide groove by means of a guide rail and a guide groove, the roller shaft 11 is rotatably installed on the slide plate 3 by means of a bearing, a driving rod 50 driven by a first motor 4 is arranged between the side plates 2, and a drive rod 50 is provided with a corresponding drive rod 50 to the slide plate 3. The first bevel gear 6 and the slide plate 3 are provided with a screw rod 40 which is threadedly connected thereto, and the end of the screw rod 40 is provided with a second bevel gear 7 which meshes with the first bevel gear 6 for transmission. A second motor 5 is mounted on the outer side of the slide plate 3 on one side of the roller shaft 11, and the end of the roller shaft 11 and the output end of the second motor 5 are connected through gear transmission. An axial locking cylinder 8 is also mounted on the side plate 2, and a rotatable pressing sleeve 9 is connected to the output rod of the axial locking cylinder 8, and the pressing sleeve 9 is sleeved on the roller shaft 11. The first motor 4 and the second motor 5 are both servo motors.
[0014] Two connecting rods 10 are connected between the slide plates 3, and supporting arms 20 are respectively installed on both sides of the two connecting rods 10. Two rollers 30 are arranged on the supporting arms 20, and the rubber tube 1 contacts the two rollers 30. Through this structure, the rotation of the rubber tube 1 can be made more stable.
[0015] By adopting the above technical scheme, the first motor 4 drives the first bevel gear 6 to rotate, which in turn drives the screw 40 to rotate, and then the screw 40 threadedly drives the adjustment slide 3 to move, so that the position adjustment accuracy of the rubber tube 1 is high. At the same time, the second motor 5 and the axial locking cylinder 8 make the rotation of the rubber tube 1 more stable and reliable, thereby achieving a technical effect of high adjustment accuracy and stability.
Claims
1. A rubber cylinder adjustment device for an offset printing press, comprising side plates and a rubber cylinder, wherein the rubber cylinder is installed between the side plates, and rollers are respectively arranged at both ends of the rubber cylinder, and the characteristics are: The side plate is provided with a guide groove, and a slide plate sliding along the guide groove is provided on the guide groove, and the roller shaft is rotatably mounted on the slide plate through a bearing, and a driving rod driven by a first motor is provided between the side plates, and a first bevel gear corresponding to the slide plate is provided on the driving rod, and a screw rod connected to the slide plate with a threaded transmission is provided on the slide plate, and a second bevel gear meshing with the first bevel gear is configured at the end of the screw rod. A second motor is mounted on the outer side of the slide plate on one side of the roller shaft, and a gear transmission is implemented between the end of the roller shaft and the output end of the second motor, and an axial locking cylinder is also mounted on the side plate, and a rotatable pressing sleeve is connected to the output rod of the axial locking cylinder, and the pressing sleeve is sleeved on the roller shaft.
2. The rubber cylinder adjusting device for an offset printing press according to claim 1, characterized in that: Two connecting rods are connected between the slide plates, and supporting arms are respectively installed on both sides of the two connecting rods. Two rollers are arranged on the supporting arms, and the rubber tube contacts the two rollers.