Anti-static spreading roller for plastic film
By combining a conductive rubber layer, a conductive copper ring, and an external ion generator module on an antistatic flattening roller, highly efficient static elimination of the plastic film surface is achieved, solving the problems of incomplete elimination and low efficiency in existing technologies, and realizing a stable dual static elimination mechanism.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIANRUI ELECTRONIC MASCH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-03
AI Technical Summary
Existing antistatic flattening rollers are ineffective and inefficient at eliminating static electricity on the surface of plastic films, especially for highly insulating materials such as certain plastic films. A single static elimination mechanism cannot fully cover their static characteristics, and the neutralization effect of ion wind is unstable.
By combining the contact discharge of the conductive rubber layer and the conductive copper ring with the ion wind generated by the external ion generator module, a dual power elimination mechanism of contact discharge and non-contact neutralization is achieved. Static charge is discharged through the contact between the conductive rubber layer and the thin film, and the ion wind is used to pre-neutralize the undischarged charge. The charge is then discharged in combination with the carbon fiber bundle and the grounding terminal.
It improves the static elimination effect on the surface of plastic film, reduces the load on the rubber roller, achieves more efficient static elimination, and ensures stability and thoroughness under different environmental conditions.
Smart Images
Figure CN224449725U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of antistatic rubber rollers, and specifically relates to an antistatic flattening rubber roller for plastic films. Background Technology
[0002] Antistatic flattening rollers are industrial rollers specifically designed to eliminate static electricity and flatten materials. They are widely used in printing, packaging, textiles, and film processing industries. Their core function is to discharge or neutralize the static charge accumulated on the material surface using conductive or antistatic materials, while simultaneously maintaining the material's flatness through the rotation and pressure of the roller. However, antistatic rollers without a dual static elimination mechanism have significant drawbacks, primarily in incomplete static elimination and low efficiency. Incomplete static elimination occurs because a single static elimination mechanism (such as relying solely on conductive materials to discharge charge or solely on ion wind to neutralize charge) cannot fully cover the static characteristics of different materials. For example, surface charges on highly insulating materials (such as certain plastic films) are difficult to discharge through the conductive layer, while relying solely on ion wind may result in unstable effects due to environmental humidity or airflow interference. This incompleteness leads to residual static electricity on the material surface. Therefore, we aim to design an antistatic flattening roller for plastic films to solve this problem. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an antistatic flattening roller for plastic film, thereby solving the problems mentioned in the background art.
[0004] This utility model is achieved through the following technical solution: an antistatic flattening roller for plastic film, comprising: a roller body, wherein mounting frames are provided at both the left and right ends of the roller body, and a clamping mechanism for fixing an external static eliminator ion generator module is provided on the mounting frame;
[0005] The main body of the rubber roller includes a spindle, a conductive rubber layer is fixedly sleeved on the outside of the spindle, and conductive copper rings are fixedly sleeved on both ends of the spindle. A mounting frame is fixedly connected to the mounting bracket, and a conductive base is fixedly connected to the mounting bracket. By setting the contact discharge of the conductive rubber layer and the conductive copper rings, the anti-static effect of the rubber roller is improved. Finally, the ion wind generated by the external ion generator module is used to pre-neutralize the static electricity non-contactly, thereby reducing the load on the rubber roller.
[0006] In a preferred embodiment, the surface of the conductive rubber layer is provided with spiral grooves to increase the film exhaust channels and reduce static electricity accumulation.
[0007] In a preferred embodiment, the conductive rubber layer is a composite structure of nitrile rubber and carbon nanotubes, which improves the mechanical properties and electrostatic dissipation capacity of the conductive rubber layer.
[0008] In a preferred embodiment, the conductive base is a phosphor bronze structure with conductivity.
[0009] In a preferred embodiment, carbon fiber bundles are bonded to the lower side of the conductive base with conductive epoxy resin. The bulk resistivity of the carbon fibers is much lower than that of ordinary rubber, forming a low-impedance path with the resistivity of the copper ring, thereby improving the efficiency of static charge release.
[0010] In a preferred embodiment, the upper side of the conductive base is fixedly connected to a grounding terminal for connecting to the grounding grid via a grounding wire.
[0011] In a preferred embodiment, the clamping mechanism includes a support frame, with two connecting blocks fixedly connected to the upper end of the support frame. The two connecting blocks are connected by a fixed shaft, and a clamping claw is sleeved on the outside of the fixed shaft through a bearing. A fixed block is fixedly connected to the outside of the clamping claw. By setting up the clamping mechanism, it is used to fix the external electrostatic eliminator ion generator module.
[0012] In a preferred embodiment, the lower surface of the fixing block is elastically connected to the support frame by a spring.
[0013] After adopting the above technical solution, the beneficial effects of this utility model are:
[0014] 1. By setting a conductive rubber layer and a conductive copper ring for contact discharge, and cooperating with the ion wind generated by the external ion generator module to pre-neutralize static electricity in a non-contact manner, the load on the rubber roller is reduced, thereby realizing a dual static elimination mechanism of contact discharge + ion neutralization, thus improving the anti-static effect of the rubber roller.
[0015] 2. A clamping mechanism is provided to fix the external electrostatic eliminator ion generator module. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional view of the overall structure of an antistatic flattening roller for plastic film according to the present invention.
[0018] Figure 2 This is a partial exploded view of the structure of an antistatic flattening roller for plastic film according to the present invention.
[0019] Figure 3 This is a partial three-dimensional view of an antistatic flattening roller for plastic film according to the present invention.
[0020] Figure 4 This is a perspective view of a clamping mechanism for an antistatic flattening roller used for plastic film according to the present invention.
[0021] In the diagram, 1-the main body of the rubber roller, 2-the mounting frame, and 3-the clamping mechanism;
[0022] 11-Mandrel, 12-Conductive rubber layer, 13-Spiral groove, 14-Conductive copper ring, 15-Fixing bracket, 16-Conductive base, 17-Carbon fiber bundle, 18-Grounding terminal;
[0023] 31-Support frame, 32-Connecting block, 33-Gripper, 34-Fixing block, 35-Spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-3 As the first embodiment of this utility model:
[0026] An antistatic flattening roller for plastic film includes: a roller body 1, with mounting frames 2 at both the left and right ends of the roller body 1, and a clamping mechanism 3 for fixing an external static eliminator ion generator module on the mounting frame 2.
[0027] The main body 1 of the rubber roller includes a spindle 11, a conductive rubber layer 12 is fixedly sleeved on the outside of the spindle 11, and conductive copper rings 14 are fixedly sleeved on both the left and right ends of the spindle 11. A mounting frame 15 is fixedly connected to the mounting frame 2, and a conductive base 16 is fixedly connected to the mounting frame 15. By setting the contact discharge of the conductive rubber layer 12 and the conductive copper rings 14, the antistatic effect of the rubber roller is improved. Finally, the ion wind generated by the external ion generator module is used to pre-neutralize the static electricity in a non-contact manner, thereby reducing the load on the rubber roller.
[0028] The surface of the conductive rubber layer 12 is provided with spiral grooves 13 to increase the venting channels of the film and reduce static electricity accumulation.
[0029] The conductive rubber layer 12 is a composite structure of nitrile rubber and carbon nanotubes, which improves the mechanical properties and electrostatic dissipation capacity of the conductive rubber layer 12.
[0030] The conductive base 16 is a phosphor bronze structure with conductivity.
[0031] A carbon fiber bundle is bonded to the lower side of the conductive base 16 by conductive epoxy resin. The bulk resistivity of the carbon fiber is much lower than that of ordinary rubber, forming a low-impedance path with the resistivity of the copper ring, thereby improving the efficiency of static charge release.
[0032] A grounding terminal 18 for connecting to the grounding grid via a grounding wire is fixedly connected to the upper side of the conductive base 16.
[0033] Specifically, before flattening the film, the external ion generator module is activated. The ion wind generated by the ion generator module first pre-neutralizes the static electricity in the film, thereby reducing the load on the rubber roller. At the same time, when the conductive rubber layer 12 nitrile rubber + carbon nanotube composite material comes into contact with the film, a conductive path is formed, which conducts the surface static charge to the copper rings embedded at both ends of the roller. Then, through the carbon fiber brush in close contact with it, the charge is conducted to the ground through the conductive base 16 and the grounding terminal 18, thereby realizing a dual static elimination mechanism of contact discharge + ion neutralization.
[0034] Please see Figure 1 as well as Figure 4 As a second embodiment of this utility model:
[0035] The clamping mechanism 3 includes a support frame 31, with two connecting blocks 32 fixedly connected to the upper end of the support frame 31. The two connecting blocks 32 are connected by a fixed shaft. A gripper 33 is sleeved on the outside of the fixed shaft through a bearing. A fixed block 34 is fixedly connected to the outside of the gripper 33. The clamping mechanism 3 is used to fix the external electrostatic eliminator ion generator module.
[0036] The lower surface of the fixing block 34 is elastically connected to the support frame 31 by a spring 35.
[0037] Based on the above embodiments, when it is necessary to disassemble and maintain the external ion generator module, the ion generator module is lifted upward. While the ion generator module is displaced, it squeezes the gripper 33 and causes it to move. While the gripper 33 is displaced, it drives the fixing block 34 on its outer side to move and compresses the spring 35 to deform it, thereby making the gripper 33 separate and making it easy to remove the ion generator module for maintenance.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An anti-static spreader roll for plastic film comprising: The rubber roller body (1) is characterized in that mounting frames (2) are provided at both the left and right ends of the rubber roller body (1), and the mounting frames (2) are provided with clamping mechanisms (3) for fixing the external electrostatic eliminator ion generator module. The main body (1) of the rubber roller includes a spindle (11), a conductive rubber layer (12) is fixedly sleeved on the outside of the spindle (11), and conductive copper rings (14) are fixedly sleeved on the left and right ends of the spindle (11). A fixing frame (15) is fixedly connected to the mounting frame (2), and a conductive base (16) is fixedly connected to the fixing frame (15).
2. The antistatic flattening roller for plastic film as described in claim 1, characterized in that: The conductive rubber layer (12) has spiral grooves (13) on its surface to increase the venting channels of the thin film.
3. The antistatic flattening roller for plastic film as described in claim 1, characterized in that: The conductive rubber layer (12) is a composite structure of nitrile rubber and carbon nanotubes.
4. The antistatic flattening roller for plastic film as described in claim 1, characterized in that: The conductive base (16) is a phosphor bronze structure with conductivity.
5. The antistatic flattening roller for plastic film as described in claim 4, characterized in that: The lower side of the conductive base (16) is bonded with carbon fiber bundles by conductive epoxy resin.
6. The antistatic flattening roller for plastic film as described in claim 4, characterized in that: The upper side of the conductive base (16) is fixedly connected to a grounding terminal (18) for connecting to the grounding grid via a grounding wire.
7. The antistatic flattening roller for plastic film as described in claim 1, characterized in that: The clamping mechanism (3) includes a support frame (31), and two connecting blocks (32) are fixedly connected to the upper end of the support frame (31). The two connecting blocks (32) are connected by a fixed shaft. A gripper (33) is sleeved on the outside of the fixed shaft through a bearing. A fixed block (34) is fixedly connected to the outside of the gripper (33).
8. The antistatic flattening roller for plastic film as described in claim 7, characterized in that: The lower surface of the fixing block (34) is elastically connected to the support frame (31) by a spring (35).