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CN-115891423-B - Control method and device for intermittent offset press, electronic equipment and storage medium

CN115891423BCN 115891423 BCN115891423 BCN 115891423BCN-115891423-B

Abstract

The embodiment of the application provides a control method and device of an intermittent offset press, electronic equipment and a storage medium. The intermittent offset press comprises a first driving roller and a second driving roller which are arranged at intervals along a first direction, wherein the first driving roller and the second driving roller are used for driving a sheet to be printed to move along the first direction or driving the sheet to be printed to move along a second direction opposite to the first direction when contacting with the sheet to be printed, the method comprises the steps of controlling the rotation speed of the second driving roller to be larger than that of the first driving roller when controlling the first driving roller and the second driving roller to synchronously rotate so as to drive the sheet to be printed to move along the first direction, and controlling the rotation speed of the first driving roller to be larger than that of the second driving roller when controlling the first driving roller and the second driving roller to synchronously rotate so as to drive the sheet to be printed to move along the second direction.

Inventors

  • XU YIZHOU

Assignees

  • 西门子（中国）有限公司

Dates

Publication Date
20260505
Application Date
20221222

Claims (6)

  1. 1. A control method of an intermittent offset press, wherein the intermittent offset press includes a first driving roller and a second driving roller disposed at intervals along a first direction, the first driving roller and the second driving roller being configured to drive a sheet to be printed to move along the first direction or to drive the sheet to be printed to move along a second direction opposite to the first direction when contacting the sheet to be printed, the method comprising: controlling the rotation speed of the second driving roller to be larger than that of the first driving roller when the first driving roller and the second driving roller are controlled to synchronously rotate so as to drive the sheet to be printed to move along the first direction, and Controlling the rotation speed of the first driving roller to be larger than that of the second driving roller when the first driving roller and the second driving roller are controlled to synchronously rotate so as to drive the sheet to be printed to move along the second direction; wherein, the first driving roller and the second driving roller are controlled to realize synchronous rotation in a variable speed mode; wherein the control of the first driving roller and the second driving roller to realize synchronous rotation in a variable speed manner further comprises: setting an electronic cam virtual axis and a main virtual axis of the intermittent offset press, and setting the electronic cam virtual axis and the main virtual axis to keep a cam synchronous relationship, wherein the main virtual axis is used for controlling the linear speed when the first driving roller and the second driving roller drive the sheet to be printed to move along a first direction or a second direction; Maintaining the first drive roller in gear synchronous relationship with the electronic cam virtual shaft at a first synchronous ratio and the second drive roller in gear synchronous relationship with the electronic cam virtual shaft at a second synchronous ratio; the first driving roller and the second driving roller synchronously rotate with the virtual shaft of the electronic cam based on the first synchronous ratio and synchronously rotate with the virtual shaft of the electronic cam based on the second synchronous ratio by controlling the variable speed rotation of the virtual shaft of the electronic cam, so that the first driving roller and the second driving roller synchronously rotate in a variable speed mode; And when the first synchronization ratio is greater than the second synchronization ratio, the rotational speed of the first driving roller is greater than the rotational speed of the second driving roller; when the sheet to be printed is driven to move along the first direction, controlling the rotating speed of the second driving roller to be larger than that of the first driving roller, and comprising the following steps: The formula is as follows: determining and controlling the rotational speed of the first drive roller, wherein, For characterizing the rotational speed of the first drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the first synchronization ratio, and And, in the formula: Determining and controlling the rotational speed of the second drive roller, wherein, For characterizing the rotational speed of the second drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the second synchronization ratio, and , wherein, For characterizing the first preset adjustment factor, ; Or alternatively When the sheet to be printed is driven to move along the first direction, controlling the rotating speed of the second driving roller to be larger than that of the first driving roller, and comprising the following steps: The formula is as follows: determining and controlling the rotational speed of the first drive roller, wherein, For characterizing the rotational speed of the first drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the first synchronization ratio, and , wherein, For characterizing the second preset adjustment factor, And, in the formula: Determining and controlling the rotational speed of the second drive roller, wherein, For characterizing the rotational speed of the second drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the second synchronization ratio, and 。
  2. 2. The method of claim 1, wherein the step of determining the position of the substrate comprises, When the sheet to be printed is driven to move along the second direction, controlling the rotating speed of the first driving roller to be larger than that of the second driving roller, and comprising the following steps: The formula is as follows: determining and controlling the rotational speed of the first drive roller, wherein, For characterizing the rotational speed of the first drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the first synchronization ratio, and And, in the formula: Determining and controlling the rotational speed of the second drive roller, wherein, For characterizing the rotational speed of the second drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the second synchronization ratio, and , wherein, For characterizing a third preset adjustment factor, ; Or alternatively When the sheet to be printed is driven to move along the second direction, controlling the rotating speed of the first driving roller to be larger than that of the second driving roller, and comprising the following steps: The formula is as follows: determining and controlling the rotational speed of the first drive roller, wherein, For characterizing the rotational speed of the first drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the first synchronization ratio, and , wherein, For characterizing the fourth preset adjustment factor, And, in the formula: Determining and controlling the rotational speed of the second drive roller, wherein, For characterizing the rotational speed of the second drive roller, Characterizing the rotational speed of the virtual axis of the electronic cam, For characterizing the second synchronization ratio, and 。
  3. 3. A control apparatus of an intermittent offset press, wherein the intermittent offset press includes a first driving roller and a second driving roller disposed at intervals along a first direction, the first driving roller and the second driving roller being configured to drive a sheet to be printed to move along the first direction or to drive the sheet to be printed to move along a second direction opposite to the first direction when contacting the sheet to be printed, the apparatus comprising: a first control module for controlling the rotation speed of the second driving roller to be larger than that of the first driving roller when the first driving roller and the second driving roller are controlled to synchronously rotate so as to drive the sheet to be printed to move along the first direction, and The second control module is used for controlling the rotation speed of the first driving roller to be larger than the rotation speed of the second driving roller when controlling the first driving roller and the second driving roller to synchronously rotate so as to drive the sheet to be printed to move along the second direction; The first driving roller and the second driving roller realize synchronous rotation in a variable speed mode; wherein the control of the first driving roller and the second driving roller to realize synchronous rotation in a variable speed manner further comprises: setting an electronic cam virtual axis and a main virtual axis of the intermittent offset press, and setting the electronic cam virtual axis and the main virtual axis to keep a cam synchronous relationship, wherein the main virtual axis is used for controlling the linear speed when the first driving roller and the second driving roller drive the sheet to be printed to move along a first direction or a second direction; Maintaining the first drive roller in gear synchronous relationship with the electronic cam virtual shaft at a first synchronous ratio and the second drive roller in gear synchronous relationship with the electronic cam virtual shaft at a second synchronous ratio; by controlling the variable speed rotation of the virtual axis of the electronic cam, the first driving roller rotates synchronously with the virtual axis of the electronic cam based on the first synchronous ratio, and the second driving roller synchronously rotates with the virtual shaft of the electronic cam based on the second synchronous ratio so as to realize synchronous rotation of the first driving roller and the second driving roller in a variable speed mode.
  4. 4. An electronic device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; The memory is configured to store at least one executable instruction that causes the processor to perform operations corresponding to the method of any one of claims 1-2.
  5. 5. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, cause the processor to perform the method of any of claims 1-2.
  6. 6. A computer program product tangibly stored on a computer-readable medium and comprising computer-executable instructions that, when executed, cause at least one processor to perform the method of any one of claims 1-2.

Description

Control method and device for intermittent offset press, electronic equipment and storage medium Technical Field The present application relates to the field of intelligent control technologies, and in particular, to a method and apparatus for controlling an intermittent offset press, an electronic device, and a storage medium. Background Intermittent offset printing presses (also known as intermittent offset printing presses) differ from conventional all-round rotary printing presses in that they can only be used for printing fixed plate length patterns. When the intermittent offset press prints on printing paper, patterns with different plate lengths can be printed under the condition of not changing a printing roller by reciprocating the printing paper, the controllable pattern gap is ensured, and the utilization rate of the printing paper can be effectively improved. However, due to this characteristic of the intermittent offset press, the printing paper is required to continuously move forward and backward during printing, and such reciprocating movement inevitably causes severe fluctuation in tension of the printing paper. Currently, intermittent offset presses rarely install tension sensors, one way to achieve tension control is to maintain tension by setting the diameter of the paper discharge pull roll (i.e., the drive roller in the paper discharge direction for pulling the print paper in the paper discharge direction) to be lower than the actual diameter in an electrical configuration, resulting in a small overspeed of the paper discharge pull roll. However, this approach tends to result in tension drop during pull-back, and also tends to affect print quality, and during modification, typically, a stop modification is required for the intermittent offset press, which significantly affects equipment tuning efficiency. Therefore, a new solution is needed to at least partially ameliorate such a technical problem. Disclosure of Invention In order to at least partially solve the above technical problems, embodiments of the present application provide a control method, a device, an electronic apparatus, and a storage medium for an intermittent offset press. According to an aspect of the embodiments, there is provided a control method of an intermittent offset press including a first driving roller and a second driving roller spaced apart in a first direction, the first driving roller and the second driving roller being configured to drive a sheet to be printed to move in the first direction or to drive the sheet to be printed to move in a second direction opposite to the first direction when contacting the sheet to be printed, the method including: controlling the rotation speed of the second driving roller to be larger than that of the first driving roller when the first driving roller and the second driving roller are controlled to synchronously rotate so as to drive the sheet to be printed to move along the first direction, and And controlling the rotating speed of the first driving roller to be larger than that of the second driving roller when the first driving roller and the second driving roller are controlled to synchronously rotate so as to drive the sheet to be printed to move along the second direction. In some alternative embodiments, the controlling the first drive roller and the second drive roller to rotate synchronously includes controlling the first drive roller and the second drive roller to rotate synchronously in a variable speed manner. In some alternative embodiments, the controlling the first and second drive rollers to achieve synchronous rotation in a variable speed manner includes setting an electronic cam virtual axis and a main virtual axis of the intermittent offset press, and setting the electronic cam virtual axis to maintain a cam synchronous relationship with the main virtual axis, wherein the main virtual axis is used for controlling a linear speed when the first and second drive rollers drive the sheet to be printed to move in a first direction or a second direction, maintaining the first and second drive rollers in a gear synchronous relationship with the electronic cam virtual axis at a first synchronous ratio, and maintaining the second drive roller in a gear synchronous relationship with the electronic cam virtual axis at a second synchronous ratio, and achieving synchronous rotation in a variable speed manner by controlling variable speed rotation of the electronic cam virtual axis, and synchronously rotating the first drive roller with the electronic cam virtual axis based on the first synchronous ratio, and synchronously rotating the second drive roller with the electronic cam virtual axis based on the second synchronous ratio. In some alternative embodiments, the rotational speed of the second drive roller is greater than the rotational speed of the first drive roller when the second synchronization ratio is greater than the first synchronization ratio, and the