TWM582283U - Device for modifying appearance defect of prepreg - Google Patents

Abstract

A device for improving the appearance defect of a prepreg includes a fixing roller, a movable roller, and an adjusting device for adjusting the pressure applied to the prepreg by the movable roller; the fixing roller is disposed at the top of the gluing machine, and the fixing roller includes the driving roller, and the transmission The direction of rotation of the roller is the same as that of the prepreg; the movable roller is disposed on the top of the gluing machine, the movable roller includes a movable roller, the movable roller is located above the prepreg transmission, and the movable roller and the driving roller are arranged side by side in the transmission direction of the prepreg The direction of rotation of the movable roller is opposite to the direction of transmission of the prepreg. By cooperating with the fixed roller and the movable roller, a double roller drive prepreg is realized, which is pressed by the roller on both sides, so that the prepreg is flat on both sides.

Description

Device for improving the appearance defect of prepreg

The present invention relates to the field of production and production of prepregs of copper clad laminates, and more particularly to a device for improving the appearance defects of prepregs.

In the technology adopted by the current mainstream copper-clad board factory, the glass cloth is generally passed through a transmission device, enters a glue tank filled with resin glue, and the surface is evenly covered with glue, and then dried in an oven to form a prepreg. After the prepreg enters the oven, the following two problems are easy to occur: First, the unevenness of the glue: the reason is that the solvent is disordered during the volatilization process, the high-boiling solvent preempts or the low boiling point simultaneously volatilizes, causing the surface tension of the prepreg to be uneven; Crater: The reason is that the plate temperature setting is unreasonable, causing the resin to start to solidify and become more and more poor in the prepreg. The solvent has not evaporated completely, so that when the solvent evaporates, the resin layer is ejected out of a hole (ie, the crater). It is a bubble when it is not shown.

The technology of the electronics industry has developed to the present day, the circuit design requirements of the circuit board are becoming more and more fine, the line spacing and the hole pitch design are getting smaller and smaller, which makes the insulation performance of the circuit board material more and more high, and the bubble/crater greatly reduces the substrate. Insulation performance; uneven sizing will make the thickness of the board uneven, which will affect the signal transmission of the terminal product. The main adjustment directions currently used are: adjusting the temperature of the air temperature plate; changing the proportion of the formulation solvent. However, after adjustment, there is often a flatness, and there is still a problem of bubbles and unevenness on the other side.

Therefore, new technical solutions need to be developed to solve the above problems.

In view of this, the present invention is directed to the absence of the prior art, and its main purpose is to provide a device for improving the appearance defects of the prepreg, which can effectively improve the problem of the single-sided air bubbles of the prepreg and the unevenness of the rubber on one side.

In order to achieve the above objectives, this creation uses the following technical solutions:

A device for improving the appearance defect of a prepreg includes a fixing roller, a movable roller, and an adjusting device for adjusting the pressure applied to the half of the curing sheet by the movable roller; the fixing roller is disposed on the top of a glue machine, The fixed roller includes a driving roller, the driving roller has a rotation direction that is consistent with the prepreg driving direction; the movable roller is disposed at the top of the glue machine, the movable roller includes a movable roller, and the movable roller is located at the Above the prepreg drive, the movable roller and the drive roller are arranged side by side in the transmission direction of the prepreg, and the movable roller rotates in a direction opposite to the transmission direction of the prepreg.

Further, the number of the driving rollers is three, and the three driving rollers are parallel to each other and arranged in an isosceles triangle shape, and the number of the movable rollers is at least one.

Further, the number of the movable rollers is three, which are respectively located at the sides of the corresponding transmission rollers.

According to the above technical features, the following effects can be achieved:

1. By cooperating with the fixing roller and the movable roller, the double roller is driven to transmit the prepreg. When the prepreg enters the oven and reaches the top of the gluing machine, both sides thereof are pressed by the roller, so that the prepreg has two sides. They can be very flat, which can effectively improve the problem of single-sided bubbles on the prepreg and unevenness on one side.

2. This creation has the characteristics of low difficulty in realization and low cost.

In light of the above technical features, the main effects of the device for improving the appearance defects of the prepreg will be clearly shown in the following embodiments.

Referring to the first figure, the specific structure of the preferred embodiment of the present invention is shown, including a plurality of fixed rollers 10, a plurality of movable rollers 20, and a plurality of adjusting devices 30.

The fixing rollers 10 are disposed on the top of a glue applicator 40, and each of the fixing rollers 10 includes a driving roller 11 which rotates in the same direction as the driving direction of the half-curing sheet 50. The gluing machine 40 includes an impregnation The plastic pot 41 is provided with an impregnating roller 42 disposed in the impregnating pot 41 and two extruding wheels 43 disposed directly above the impregnating pot 41. The extruding wheels 43 are arranged side by side.

The movable rollers 20 are disposed on the top of the glue applicator 40. Each movable roller 20 includes a movable roller 21. The movable roller 21 is located above the prepreg 50, and the movable roller 21 and the movable roller 21 The driving rollers 11 are arranged side by side in the driving direction of the prepreg 50, and the moving direction of the movable rollers 21 is opposite to the driving direction of the prepreg 50.

The adjusting devices 30 are respectively configured to adjust the magnitude of the pressure applied by the movable rollers 20 to the prepreg 50.

The driving roller 11 is three, and the three driving rollers 11 are parallel to each other and are arranged in an isosceles triangle shape. The movable roller 21 is at least one. In this embodiment, the movable roller 21 is Three, which are respectively located on the side of the corresponding drive roller 11.

The working principle of this embodiment is as follows:

In operation, when the prepreg 50 enters the oven to reach the top of the glue applicator 40, the movable roller 20 can be separately applied to the prepreg 50 by the adjusting device 30 according to the current thickness of the prepreg. The size of the pressure. At this time, the prepreg 50 is in a flowable, slightly wet state, and the two sides thereof are respectively received by the driving rollers 11 and the movable rollers 21, so that the prepregs 50 can be flat on both sides, and the prepreg 50 can be effectively improved. Single-sided bubbles and the problem of uneven glue on one side.

The design of the present invention is focused on: by cooperating with the fixing roller 10 and the movable roller 20, the double roller is driven to the prepreg 50, and when the prepreg 50 enters the oven to reach the top of the gluing machine 40, Both sides are pressed by the roller, so that the prepreg 50 can be flat on both sides, which can effectively improve the problem of the single-sided air bubbles of the prepreg and the unevenness of the rubber on one side. This creation has the characteristics of low achievability and low cost.

In view of the above description of the embodiments, the above-described embodiments are merely a preferred embodiment of the present invention, and the implementation of the present invention is not limited thereto. The scope, that is, the simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the creation of the creation, are within the scope of this creation.

(10) ‧‧‧Fixed Rolla

(11)‧‧‧Drive roller

(20)‧‧‧Removable Rolla

(21)‧‧‧Removable scroll wheel

(30) ‧‧‧ adjustment device

(40)‧‧‧Glue machine

(41) ‧‧‧ impregnated pots

(42)‧‧‧Immersion roller

(43)‧‧‧Squeezing wheel

(50)‧‧‧prepreg

[First Diagram] is a schematic structural view illustrating an embodiment of the apparatus for improving the appearance defects of a prepreg.

Claims (3)

A device for improving the appearance defect of a prepreg, comprising a fixing roller, a movable roller, and an adjusting device for adjusting the pressure applied by the movable roller to the half of the curing sheet; the fixing roller is disposed on the top of a glue machine The fixed roller includes a driving roller, the driving roller rotates in the same direction as the prepreg; the movable roller is disposed on the top of the glue machine, and the movable roller includes a movable roller, and the movable roller is located Above the prepreg drive, the movable roller and the drive roller are arranged side by side in the transmission direction of the prepreg, and the movable roller rotates in a direction opposite to the transmission direction of the prepreg. The device for improving the appearance defect of a prepreg according to claim 1, wherein the number of the driving rollers is three, and the three driving rollers are parallel to each other and arranged in an isosceles triangle shape, the movable roller The number is at least one. The device for improving the appearance defect of the prepreg according to the second aspect of the invention, wherein the number of the movable rollers is three, which are respectively located at the sides of the corresponding driving rollers.