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Prepreg cropping device and method

A prepreg, cutting technology, used in transportation and packaging, metal processing, sending objects, etc., can solve the problems of inability to achieve cutting, insufficient precision, difficult to control the heating process, etc., to prevent local burning or insufficient softening, avoid The effect of degraded performance and simple structure

Active Publication Date: 2014-03-12
VICTORY GIANT TECH HUIZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual practice is to heat the strip-shaped prepreg in an oven to soften it, and then cut it. Because the heating process is difficult to control, it usually causes the strip-shaped prepreg to be overheated and burnt due to uneven heating in some areas or due to insufficient heating. but can not meet the cutting requirements
In addition, the softened strip-shaped prepreg cannot be cut with existing cutting equipment due to its soft texture, and the cutting process can only be completed manually
This method is inefficient and lacks precision, and it is easy to re-harden the strip-shaped prepreg due to the long interval between the heating process and the cutting process, resulting in burrs and gaps in the product

Method used

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  • Prepreg cropping device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a prepreg cutting device for cutting ceramic materials, such as figure 1 Shown includes a heating unit for heating the prepreg, a feeding unit that is arranged in front of the heating unit and can feed the strip-shaped prepreg into the heating unit, a front cutting part that is cross-mounted on the feeding unit and the heating unit, and a cross-frame on the heating unit. The rear cutting part at the end; the feeding unit is provided with a transmission mechanism A, and the heating unit is provided with a transmission mechanism B; it also includes a device for controlling the operation of the feeding unit, the heating unit, the front cutting part and the rear cutting part control unit.

[0034] The front cutting part includes a front sensing mechanism arranged on the transmission mechanism A that can sense the strip-shaped prepreg, a front cutting cylinder 11 arranged above the transmission mechanism A, and a front cutting cylinder 11 arranged on...

Embodiment 2

[0045] This embodiment provides a method for cutting a ceramic prepreg using the solidified sheet cutting device of Embodiment 1.

[0046] Including the following procedures:

[0047] Wrap the strip-shaped prepreg on the fixed shaft 62, and put its end into the gap between the driven conveying roller group and the driving conveying roller group of the feeding unit; preset the length of the prepreg to the control unit and the temperature sufficient to soften the prepreg. The softening temperature of different prepreg materials is different. For example, the softening temperature of ceramic prepreg is 30-40°C, and the softening time is 20 seconds; is 35°C.

[0048] Use the control unit to control the motor 33 of the transmission mechanism A to drive the active transmission roller group to drive the strip-shaped prepreg to advance in the feeding mechanism;

[0049] When the strip-shaped prepreg moves to the bottom of the front sensing mechanism, the front sensing mechanism trig...

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Abstract

The invention discloses a prepreg cropping device. The prepreg cropping device is characterized by comprising a heating unit, a feeding unit, a front cropping part, a rear cropping unit and a control unit; the heating unit is used for heating a prepreg; the feeding unit is arranged in front of the heating unit and can feed the banded prepreg into the heating unit; the front cropping part is transversely erected on the feeding unit and the heating unit; the rear cropping part is transversely erected at the tail end of the heating unit; a transmission mechanism A is arranged on the feeding unit, and a transmission mechanism B is arranged on the heating unit; the control unit controls the feeding unit, the heating unit, the front cropping part and the rear cropping part to operate. After being fed into the heating unit by the feeding unit, the banded prepreg is immediately cropped into a prepreg finished product by the rear cropping part, the banded prepreg is cropped under the appropriate condition, and it is guaranteed that the edge of the manufactured prepreg finished product is smooth and free of burrs.

Description

technical field [0001] The invention relates to the technical field of circuit board production, in particular to a prepreg cutting device and a cutting method. Background technique [0002] Recently, prepregs are widely used in circuit board technology. Prepreg (also known as resin fiberglass cloth or fiberglass resin board) is mainly composed of resin and reinforcement materials. Reinforced materials include glass fiber cloth, composite materials and many other types. Current prepregs are sheet materials obtained by impregnating resin with a treated reinforcement material (eg, fiberglass cloth). Most of the tape-shaped prepregs currently available on the market are large-scale tape-shaped prepregs. Usually, according to the size of the circuit board to be produced, the rectangular tape-shaped prepregs are cut into smaller rectangular prepregs along the direction parallel to its four sides to fit the circuit board. size of. Because the material of the strip-shaped prepr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/38B26D7/10B65H35/06
Inventor 夏国伟曾祥福张晃初
Owner VICTORY GIANT TECH HUIZHOU CO LTD
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