JPS5856821A - Multilayer molding method - Google Patents

Abstract

PURPOSE:To perform multilayer molding while completely eliminating flashes, by a method wherein a thermosetting resin is primarily molded, and with the thus molded article fitted to a core, flashes are removed by resin-made brushes being moved while rotating, and then a thermoplastic resin is secondarily molded to be laminated on the molded article. CONSTITUTION:A thermosetting resin is primarily molded, and in the condition wherein the thus molded article X is fitted to the core 2, the flashes Y of the article X are removed by the resin-made brushes 7, 11 being moved while rotating. Thereafter, a thermoplastic resin is secondarily molded to be laminated on the article X. Accordingly, generation of defective products can be prevented by removing the flashes Y by the brushes 7, 11 without damaging a rotary mold 1, and the removal of the flashes Y can be achieved even in the condition wherein the molding temperature is maintained to be high by stopping compressed air. In addition, multilayer molding can be conducted with an easy molding operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multilayer molding method in which a thermoplastic resin 1111 is secondarily molded by overlapping a fire-formed thermosetting resin.

Conventionally, in this type of product, the thermoplastic resin is second-molded after blowing out l<'' with compressed air, and there is a problem that the particles cannot be removed sufficiently.

This invention was made in view of the above circumstances.
The purpose is to provide a multilayer molding method that removes particles from the thermosetting resin and prevents the production of defective products.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. 1 is a rotary type, is equipped with a core g, and is positioned at four locations that differ by 90 degrees during the 1 cycle molding process.

8 is a cavity on the primary molding side, and the rotary mold 1 is positioned at the position 2, and primary molding is performed using thermosetting resin. 4 is a bar 9 lifting device ToO, a shaft 6 which is driven and rotated by Morph 51C and moves vertically with respect to the molded product x4c, and a nine circular resin 172 fixed to this shaft 6.
a vertical puff V8 consisting of a shaft 19, and a shaft l which is driven and rotated by a motor 19 and moves laterally with respect to the molded product XK.
It consists of a horizontal puff Vv which is made up of a circular resin brush U which is fixed to O and 01111O. And a resin Puwo V-cho.

U is the direction of movement St of the axis 6.10, ! %, the rotation directions Rt, Ba and KIiD are rotated in the opposite direction, thereby further enhancing the effect of removing Paris W. This bar-removal seconds device 4
As shown in Fig. 1, the molded product
Is it made of resin that is attached to core 2 and moves while rotating in a state of up to 9 tons? , 11 to remove the powder Y from the molded product X, and then collect the powder Y by a dust collector (not shown). 1 is a cavity on the secondary molding side, and the rotary mold 1 is positioned at the position 2, and the multilayer product 2 is obtained by overlapping the C molded product X and performing C secondary molding with a thermoplastic resin.

I4 is a take-out device. The rotation speed is 1t! 1 Hee! It is.

Therefore, in order to remove Paris W, first, as shown in Figure 2,
The vertical plastic V8 moves in the vertical direction. In this case, as shown in FIG. 4, the rotating direction is opposite to the moving direction of the wheel, and the rotating direction is an island and reciprocates with respect to the moving direction 4.

At this time, the compressed air released from the air nozzle further enhances the removal effect of °C. Next, the horizontal brush 4 similarly moves in the left-right direction.

In addition, compressed air is effective in collecting the removed Ba Lower the temperature of l.

It is also possible to set the molding temperature to an appropriate temperature. On the other hand, if the molding temperature is kept high and the shape is round, the compressed air may be stopped and the powder Y may be removed using only the resin puffs V'r and u.

As explained above, this invention uses a thermosetting resin to
-C- Forming shape In the state 11 in which the molded product X made of thermosetting resin is attached to the core 2, the resin brush T that moves while rotating, ullc causes the shape of the molded product X to be
After removing the molded product
．． It is possible to remove the paper without damaging the rotary mold and prevent the production of defective products.
can be removed. In addition, a multilayer molding method is obtained that does not require precise material measurement to prevent the occurrence of burr Y, and the molding operation can be easily carried out.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a layout diagram, FIG. 2 is a layout diagram, FIG. 8 is a partial diagram, and FIG. 4 is an enlarged view of main parts. l: Rotating type, 2: Core, ? , II: Brush, X:
Molded product, Y: Paris. Patent applicant Matsu F Electric Co., Ltd. Representative patent attorney Toshimaru Takemoto (and 2 others)

Claims (1)

[Scope of Claims] (11) The molded product is primarily molded using a thermosetting resin, and the molded product is molded by a resin pusher that rotates in fl while attached to the core and is moved from the bottle. A multi-layer molding method characterized in that after removing the molded product, secondary molding is performed using a thermoplastic resin over the molded product. (2) A vertical puff V that moves vertically to the molded product to remove the flakes. , a hammer V that moves laterally to remove the paris.
A multilayer molding method according to claim 1. (8) A multilayer molding method according to claims 1 and 2, in which the resin puff V rotates in the opposite direction to the moving direction.