Process and device for producing thin prepreg

A prepreg and production process technology, applied in the field of copper clad laminates, can solve the problems of low production efficiency and low qualification rate of ultra-thin prepregs, and achieve the effects of reducing uneven stress, saving materials and ensuring production quality

Active Publication Date: 2015-04-29
GUANGDONG SHENGYI SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the production of ultra-thin prepregs will face s

Method used

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  • Process and device for producing thin prepreg
  • Process and device for producing thin prepreg
  • Process and device for producing thin prepreg

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] Example one:

[0049] Such as figure 2 As shown, the embodiment of the present invention provides a thin prepreg production device, which includes a sending unit 1, a glue tank 2, an oven 3, a cooling device 4, an edge cutting device 5, and a winding device 6 arranged in sequence. 2 and the sending unit 1 and on the side adjacent to the glue tank 2 is provided with a film separation and recovery device 7, and the sending unit 1 is provided with a composite coil 12, which is a composite of the reinforced film 10 and the reinforced material 9, namely A layer of reinforced film 10 is lined on one side of the reinforced material 9. After the composite web 12 is unwinded, it is sent to the side of the glue tank 2 through the roller 8. The end of the reinforced film 10 away from the sending unit 1 is wound on the film separation On the recovery roller 71 of the recovery device 7, the end of the reinforcing material 9 away from the sending unit 1 is sent into the glue tank 2.

[...

Example Embodiment

[0062] Embodiment two:

[0063] Such as image 3 As shown, the embodiment of the present invention provides a thin prepreg production device, which includes a sending unit 1, a glue tank 2, an oven 3, a cooling device 4, an edge cutting device 5, and a winding device 6 arranged in sequence. A traction device is arranged between 2 and the sending unit 1. The traction device is a circulating conveyor belt 13, which is driven by a power device to perform a uniform circulation movement.

[0064] Specifically, the circulating conveyor belt 13 includes a driving wheel 131, a driven wheel 132, and a conveyor belt 133 arranged on the driving wheel 131 and the driven wheel 132. The conveyor belt 133 performs circular motion under the action of the driving wheel 131 and the driven wheel 132, and the driving wheel 131 and The power device is connected to realize uniform rotation around its own axis through the power device.

[0065] In this embodiment, the reinforcing material 9 is glass fibe...

Example Embodiment

[0074] Embodiment three:

[0075] The structure of this embodiment is basically the same as that of the second embodiment. The only difference is that the traction device used in the third embodiment is a transmission wire. The traction device includes two parallel transmission wires. One end of the transmission wire is connected to the power device. The conveying steel wire is moved at a constant speed from the sending unit toward the glue tank, and the reinforcing material is fixed on the conveying steel wire by a fixing piece. In this embodiment, the fixing piece is a fixing clip.

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PUM

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Abstract

The invention discloses a process and a device for producing a thin prepreg. The process comprises the impregnation process; and before the impregnation process, a reinforcing material is arranged on a carrier so that the carrier directly acts on a roll shaft to share the acting force applied by the roll shaft on the reinforcing material. By arranging the reinforcing material on the carrier before the impregnation, the roll shaft can be prevented from being directly contacted with the reinforcing material, the pulling force directly applied from a device to the reinforcing material is effectively reduced, the condition that the reinforcing material is partially stressed unevenly is reduced, the thin reinforcing material is protected particularly, such phenomena as dislocation, shape change and tearing of the thin reinforcing material and the ultrathin prepreg are reduced, and the production efficiency and product percent of pass are improved.

Description

technical field [0001] The invention relates to the technical field of copper clad laminates, in particular to a production process and device of a thin prepreg. Background technique [0002] With the continuous development of electronic products in the direction of "light, thin, short, small" and multi-functionality, higher requirements are put forward for the basic materials of electronic products. Not only higher performance is required, but also more and more frivolous. As the base material of electronic circuits, copper clad laminates are becoming more and more thin. [0003] The traditional manufacturing process and equipment of copper clad laminate prepreg such as figure 1 As shown, after the rolled reinforcement material 100 is unrolled, under the traction of the first roller shaft 200 of the equipment, it is impregnated with the resin glue solution through the glue tank 300, and then baked and dried in the oven 400, so that the resin from the uncured glue solution...

Claims

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Application Information

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IPC IPC(8): B29C70/50B29C70/54
CPCB29C70/50B29C70/54B29C70/545
Inventor 林伟
Owner GUANGDONG SHENGYI SCI TECH
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