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Production process and device of a thin prepreg

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

Active Publication Date: 2017-04-05
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 severe problems of low production efficiency and low pass rate

Method used

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  • Production process and device of a thin prepreg
  • Production process and device of a thin prepreg
  • Production process and device of a thin prepreg

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 2 As shown, the embodiment of the present invention provides a kind of production device of thin prepreg, and it comprises sending unit 1, glue tank 2, oven 3, cooling device 4, edge cutting device 5 and winding device 6 arranged in sequence, in the glue tank 2 and the sending unit 1 and on the side adjacent to the glue tank 2, a film separation and recovery device 7 is set, and a composite coil 12 is arranged on the sending unit 1, and the composite coil 12 is a composite of a reinforced film 10 and a reinforced material 9, namely One side of the reinforcing material 9 is lined with a layer of reinforcing film 10. After the composite roll 12 is unrolled, it is sent to the side of the glue tank 2 through the roller 8, and the end of the reinforcing 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 glu...

Embodiment 2

[0063] Such as image 3 As shown, the embodiment of the present invention provides a kind of production device of thin prepreg, and it comprises sending unit 1, glue tank 2, oven 3, cooling device 4, edge cutting device 5 and winding device 6 arranged in sequence, in the glue tank 2 and the sending unit 1 are provided with a traction device, the traction device is an endless conveyor belt 13, and the endless conveyor belt 13 is driven by a power device to perform uniform circular motion.

[0064] Specifically, the endless 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 circulates under the action of the driving wheel 131 and the driven wheel 132. The power device is connected to realize uniform rotation around its own axis through the power device.

[0065] In the present embodiment, reinforcing material 9 is glass fiber cloth, and the unit weight of gl...

Embodiment 3

[0075] The structure of this embodiment is basically the same as that of Embodiment 2. The only difference is that the traction device used in Embodiment 3 is a transmission steel wire. This traction device includes two transmission steel wires that are parallel to each other. The transmission steel wire is moved from the sending unit toward the glue tank at a constant speed, and the reinforcing material is fixed on the transmission steel wire through a fixing member. In this embodiment, the fixing member 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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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/50B29C70/54
CPCB29C70/50B29C70/54B29C70/545
Inventor 林伟
Owner GUANGDONG SHENGYI SCI TECH
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