CN-224224526-U - Rubber coating compression roller and pad pasting compression roller device

CN224224526UCN 224224526 UCN224224526 UCN 224224526UCN-224224526-U

Abstract

The utility model discloses an encapsulation compression roller and a film sticking compression roller device, wherein the encapsulation compression roller comprises a compression roller at the center and a rubber sleeve coated on the periphery of the compression roller, the outer diameter of the middle part of the encapsulation compression roller is larger than the outer diameters of two ends of the encapsulation compression roller, and transition sections with gradually reduced outer diameters are formed between the middle part of the encapsulation compression roller and the two ends of the encapsulation compression roller. According to the utility model, the encapsulation compression roller is designed into a shape with two flat ends of the middle bulge, so that the encapsulation compression roller can be used for compressing and filling the dry film into the concave part in the middle of the plate surface, and the quality problems of bubbles and the like in the concave part after film pasting are solved.

Inventors

LI XIANGHUA
FAN XICHAO
DONG JUN
HUANG FENGZHI
Deng tianjin

Assignees

珠海崇达电路技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (10)

1. The utility model provides an encapsulation compression roller, includes the compression roller and the gum cover of cladding locating the compression roller periphery in center, its characterized in that, the external diameter at encapsulation compression roller middle part is greater than the external diameter at its both ends, just all be formed with the changeover portion that the external diameter reduces gradually between middle part and the both ends of encapsulation compression roller.
2. The encapsulating press roller as claimed in claim 1, wherein a first straight section with an outer diameter of 100mm is arranged in the middle of the encapsulating press roller, a second straight section with an outer diameter of 98mm is arranged at both ends of the encapsulating press roller, and a transition section with an outer diameter gradually decreasing is formed between the first straight section and the second straight sections at both ends.
3. The encapsulated roller of claim 2 wherein the outer diameter of the roller at the first straight section is 95mm, the outer diameter of the roller at the second straight section is 92mm, and the outer diameter of the roller at the transition section tapers from 95mm inside to 92mm outside.
4. A covered pressure roller as claimed in claim 3 wherein said first straight section has a sleeve thickness of 2.5mm and said second straight section has a sleeve thickness of 3mm, said transition section having a sleeve thickness which increases gradually from 2.5mm on the inside to 3mm on the outside.
5. The encapsulated press roll of claim 2 wherein said press roll is cylindrical with a uniform overall outer diameter and said press roll has an outer diameter of 92mm.
6. The encapsulated roller as set forth in claim 5 wherein said first straight section has a sleeve thickness of 4mm and said second straight section has a sleeve thickness of 3mm, said transition section having a sleeve thickness that tapers from 4mm inside to 3mm outside.
7. The encapsulation roller of any one of claims 2 to 6, wherein the first straight section has a length of 20mm and the second straight section has a length of 50mm.
8. The encapsulated roller of claim 7 wherein said rubber sleeve is a 55 degree durometer rubber sleeve.
9. The film sticking compression roller device is characterized by comprising an upper first film wrapping compression roller and a lower second film wrapping compression roller which are arranged in parallel, wherein the first film wrapping compression roller and the second film wrapping compression roller adopt the film wrapping compression roller as claimed in any one of claims 1-8, and a gap for a PCB to pass through is formed between the first film wrapping compression roller and the second film wrapping compression roller.
10. The laminating roller device according to claim 9, wherein the upper end of the first laminating roller is provided with a first steel roller adjacent to the first rubber roller and a first cylinder for driving the first steel roller to move up and down, and the lower end of the second laminating roller is provided with a second steel roller adjacent to the second rubber roller and a second cylinder for driving the second steel roller to move up and down.

Description

Rubber coating compression roller and pad pasting compression roller device Technical Field The utility model belongs to the technical field of PCB (printed circuit board) film laminating equipment, and particularly relates to an encapsulation compression roller and a film laminating compression roller device. Background In the process of manufacturing the printed circuit board pattern, a photosensitive dry film is required to be attached to the PCB surface before exposure image transfer, the photosensitive dry film is mainly pressed and attached to the PCB surface through an encapsulation pressing roller during film pasting, the diameter of the encapsulation pressing roller is 100mm, namely the axial diameters of the encapsulation pressing rollers are 100mm, the length of the encapsulation pressing roller is 810mm, the encapsulation pressing roller is usually composed of a central iron core and an outer periphery of the iron core, the diameter of the iron core is 94mm, and a layer of acid and alkali resistant rubber with the thickness of 3mm is wrapped around the iron core, and the rubber hardness is 68 degrees (Shore hardness). When the film is pasted, the concave depth of the PCB board with the thickness of more than or equal to 6mm is 0.3mm due to PP gumming in a copper-free area in the middle of the board, when the encapsulation pressing roller is used for pasting the dry film on the concave position of the board surface, the contact surface of the encapsulation pressing roller and the board surface is horizontal, so that the dry film cannot be pressed into the concave position, the quality problems such as bubbles appear in the concave position after film pasting are caused, and further the manufacturing and production quality of the PCB board in the later stage are affected. Disclosure of utility model The utility model aims to overcome the defects of the prior art, and provides an encapsulation compression roller and a film pasting compression roller device, wherein the encapsulation compression roller is designed into a shape with two flat ends of a middle bulge, so that a dry film can be pressed and filled into a concave part in the middle of a plate surface, and the quality problems of bubbles and the like in the concave part after film pasting are solved. In order to solve the technical problems, the utility model provides an encapsulation compression roller, which comprises a compression roller at the center and a rubber sleeve coated on the periphery of the compression roller, wherein the outer diameter of the middle part of the encapsulation compression roller is larger than the outer diameters of two ends of the encapsulation compression roller, and transition sections with gradually reduced outer diameters are formed between the middle part of the encapsulation compression roller and the two ends of the encapsulation compression roller. Further, a first straight section with the outer diameter of 100mm is arranged in the middle of the rubber coating compression roller, a second straight section with the outer diameter of 98mm is arranged at two ends of the rubber coating compression roller, and a transition section with the outer diameter gradually reduced is formed between the first straight section and the second straight sections at two ends. Further, the outer diameter of the press roller at the first straight section is 95mm, the outer diameter of the press roller at the second straight section is 92mm, and the outer diameter of the press roller at the transition section is gradually thinned to 92mm from the inner side of 95mm to the outer side. Further, the thickness of the rubber sleeve at the first straight section is 2.5mm, the thickness of the rubber sleeve at the second straight section is 3mm, and the thickness of the rubber sleeve at the transition section is gradually thickened from 2.5mm at the inner side to 3mm at the outer side. Further, the press roller is cylindrical with the same overall outer diameter, and the outer diameter of the press roller is 92mm. Further, the thickness of the rubber sleeve at the first straight section is 4mm, the thickness of the rubber sleeve at the second straight section is 3mm, and the thickness of the rubber sleeve at the transition section is gradually thinned to 3mm from 4mm at the inner side to 4mm at the outer side. Further, the length of the first straight section is 20mm, and the length of the second straight section is 50mm. Further, the rubber sleeve is made of rubber with the hardness of 55 degrees. In a second aspect, the utility model further provides a film laminating press roll device, which comprises a first film laminating press roll and a second film laminating press roll which are arranged in parallel, wherein the first film laminating press roll and the second film laminating press roll are both made of the film laminating press roll according to any one of the first aspect, and a gap for a PCB to pass through is formed be