一种用于静电传导的滚轮片结构
By designing an electrostatic conduction roller structure, the problem of electrostatic breakdown during PCB printing was solved, achieving electrostatic discharge and board fixation, thus ensuring printing quality and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN HANSHENG MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-17
AI Technical Summary
During the printing process, PCB boards are prone to electrostatic discharge due to electrostatic friction, which can lead to electrostatic breakdown and damage. Existing technologies are unable to effectively solve this problem.
Design a roller plate structure for electrostatic conduction, including components such as an inner shaft seat, a connecting seat, an overcurrent slip ring, insulating rubber, a conductive strip, and reinforcing ribs. Static electricity is discharged through the sliding plate and conductive slip ring, preventing static electricity accumulation and equipment leakage, and ensuring the fixation and safety of the PCB board.
It effectively prevents PCB boards from being damaged by electrostatic discharge during the printing process, ensuring printing quality and equipment safety, avoiding the accumulation of static electricity from affecting the use of rollers, enhancing overall strength and preventing deformation.
Smart Images
Figure CN224521289U_ABST
Abstract
Claims
1. A roller sheet structure for electrostatic conduction, characterized by: The device includes an inner shaft seat (1), which is a hollow shaft. A connecting seat (2) is fixedly connected to the middle of the outer ring side of the inner shaft seat (1). The front surface of the connecting seat (2) is provided with an arc-shaped connecting groove in a circular array. A side sealing plate (3) is snapped into the connecting groove. A positioning ring (4) with an annular structure is fixedly connected to the outer ring surface of the connecting seat (2). A fixing groove is provided on the inner ring side of the front end of the positioning ring (4). An overcurrent slip ring (5) is fixedly connected inside the fixing groove. The front surface of the overcurrent slip ring (5) is in contact with the inner surface of the side sealing plate (3). A sliding piece (6) is slidably connected in the sliding groove of the overcurrent slip ring (5). A buckle groove corresponding to the external positioning device is provided at the front end of the sliding piece (6). An insulating rubber (8) is sleeved on the outer ring side of the positioning ring (4). An installation groove is provided on the front and rear sides of the outer ring of the insulating rubber (8). A conductive strip (9) is snapped into the installation groove. Wherein: the output end of the conductive strip (9) is electrically connected to the input end of the external ground wire through the overcurrent slip ring (5) and the slider (6).
2. A roller sheet structure for electrostatic conduction as claimed in claim 1, wherein: It also includes a limiting plate (7), which is fixedly connected to the rear end of the outer ring side of the connecting seat (2), and the outer ring side of the limiting plate (7) is in contact with the inner surface of the insulating rubber (8), and the rear side of the limiting plate (7) is in contact with the inner side of the rear end of the insulating rubber (8).
3. A roller sheet structure for electrostatic conduction according to claim 2, wherein: The device includes a connecting piece (10), which is fixedly connected to the inner ring side of the front surface of the limiting plate (7) in a circumferential array, and the outer ring surface of the front end of the connecting piece (10) is in contact with the rear end of the inner ring surface of the overcurrent slip ring (5).
4. A roller sheet structure for electrostatic conduction as defined in claim 1, wherein: It also includes reinforcing ribs (11) and damping plates (12). The damping plates (12) are fixedly connected to the front end of the outer ring of the overcurrent slip ring (5), and the outer surface of the damping plates (12) is in contact with the inner surface of the insulating rubber (8). The reinforcing ribs (11) are fixedly connected to the outer ring of the connecting seat (2) in a circumferential array, and the outer surface of the reinforcing ribs (11) is in contact with the inner surface of the positioning ring (4).
5. A roller sheet structure for electrostatic conduction as claimed in claim 1, wherein: The connecting seat (2) is made of insulating material, and a side top block is provided inside the connecting groove opened on the front surface of the connecting seat (2), which provides auxiliary support for the side sealing plate (3).
6. A roller sheet structure for electrostatic conduction as defined in claim 1, wherein: The insulating rubber sheet (8) is a foamed rubber sheet, and the outer surface corners of the insulating rubber sheet (8) are all rounded. The inner ring surface of the insulating rubber sheet (8) is coated with a silicon carbide wear-resistant and anti-slip coating.
7. A roller sheet structure for electrostatic conduction as defined in claim 4, wherein: The reinforcing rib (11) and the damping plate (12) are both made of conductive metal, and the surfaces of the reinforcing rib (11) and the damping plate (12) are electroplated with a nickel-based alloy corrosion-resistant layer.