Cooling structure for center large roller of flexible plate printing machine
By designing a bidirectional spiral flow channel and a PLC control system on the central large roller of the flexographic printing press, the problem of uneven cooling was solved, and a uniform distribution of roller surface temperature and improved printing quality were achieved.
CN223972299UActive Publication Date: 2026-03-06福建昶泓印刷机械有限公司
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202520670621.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Technical Problem
The cooling structure of the central roller in existing flexographic printing presses has uneven cooling issues, resulting in a significant temperature difference between the two ends of the roller, which affects the quality of printed products.
Method used
The system employs a bidirectional spiral flow channel design, where the coolant flows through the left and right spiral channels to form bidirectional convection. Combined with a temperature sensor and PLC control system, the opening of the solenoid valve and industrial pump is dynamically adjusted to achieve uniform cooling.
Benefits of technology
It improves the uniformity of roller surface temperature, reduces maintenance and operating costs, extends equipment life, and enhances the pass rate of printed products.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a flexible plate printing machine center large roller cooling structure which comprises an outer roller shaft, a cooling cavity is formed in the outer roller shaft, a framework layer is arranged in the center of the cooling cavity, an outer shaft sleeve is arranged in the framework layer, a spiral left flow channel is formed in the surface of the outer shaft sleeve in the clockwise direction, and a spiral right flow channel is formed in the surface of the outer shaft sleeve in the clockwise direction. The two ends of the spiral left flow channel are connected through a first connecting pipe, a first industrial pump is arranged on the first connecting pipe, an inner shaft sleeve is arranged in the outer shaft sleeve, a spiral right flow channel is formed in the outer wall of the inner shaft sleeve anticlockwise, and the two ends of the spiral right flow channel communicate through a second connecting pipe. And the second connecting pipe is connected with a second industrial pump. The roller is scientific and reasonable in structural design, the left flow channel and the right flow channel form two-way convection, the flow speed of cooling liquid is increased, the surface temperature difference of the roller body is small, and the problem of uneven cooling is solved; the included angle between the axis of the double-flow channel and the axis of the roller body is 15 degrees, and the turbulence effect is enhanced.
Need to check novelty before this filing date? Find Prior Art