JPS58181624A - Multistage clamping type injection molding machine - Google Patents

Abstract

PURPOSE:To obtain an injection molding machine low in cost and excellent in interchangeability by a method wherein an intermediate movable plate on the front and rear surface of which molds are provided and in which a hot runner is provided so that it touches to a lateral injection unit through a nozzle is laid out between a fixed plate and a rear movable plate. CONSTITUTION:When a mold operating cylinder 7 and a mold closing device 3 are operated simultaneously, the intermediate movable plate b advances before the rear movable plate 2 advances and touches the fixed plate 1. When the inter mediate movable plate stops advancing and the rear movable plate 2 comes in contact with the intermediate movable plate 6, since the injection unit 8 has been connected, the mold closing device 3 can raise the mold closing pressure as soon as the rear movable plate 2 stops. The molten resin in the injection unit 8 that was calculated in advance is forced in from the injection nozzle 10 through the hot runner 6a and the hot nozzle runner gate of the intermediate movable plate 6 into the mold cavity 6b and molded.

Description

[Detailed description of the invention] The present invention relates to a multistage clamping injection molding machine.

In this type of molding machine, 19 or more intermediate movable plates having gold IIi on the front and rear surfaces are arranged between the nine fixed plate for reducing the positioning and tightening and the rear movable plate having a positioning device. However, in order to prevent the excess quantity of one injection from being lost, the injection device is placed on the side of the mold clamping device. As in Publication No. 4047, it is not possible to use a common mold located on the mating surface of the mold, and it has the disadvantage of requiring special metal molding.

The present invention has an object to improve such an arrangement, in which an intermediate movable 11tlli with a metal lid on the rear surface of the fixed plate and a rear movable plate with an acupuncture device is provided.
In the above-described 91 kRfli tight injection molding 11, a hot runner is formed in the intermediate movable platen to touch the nozzle to the side injection device.

To explain this using the illustrated embodiment, (1) is a fixed plate;
(2) shows an 11-part movable plate, and the movable plate (2) tit
The lid tightening device (3) consisting of a cylinder is attached to the O-tem (4), and the OI! ! Shoulder of tightening device (3) and fixed platen (1)
0 shoulder and K11l! Nine divers φ) Kill are movably inserted. (6) is an intermediate IIJIIll board, and the scissors are movable! II (61 is identified as a1111 and rear 1lli
Between the ll board (2) and the above-mentioned diver (5), there is a 4EK fitting inserted into the K-layer motor, and on the back of the O'wI, there is a fixed board (1) and a rear movable board (2), respectively. Kyuo Cover II (1
Female ring 11 (4&) (4m) facing m) (1m)
These gold WIC4 &
) (4&) cavity (4b) Kmb hot spring runner (40) is provided, and the gate (4e) of the runner (4e) is provided.
e (7) is a metal opening/closing cylinder attached to the movable plate (6), (8)
1 is an injection device, and nine nozzles are installed at the tip of the heating cylinder (9) of the injection device (8), and nine nozzles are provided opposite to the six nozzles of the movable plate (6). (11) is a game) (A
ll) is the opening connection part, a is the material input hopper, Q3
tli filling cylinder I is a product extrusion plate provided on a fixed 11 (1) and aS sliding plate (11), (c) is an extrusion rod of 1,000, % is an extrusion cylinder of 1,000, and a indicates the product.

Next, I will explain its operation II! At the starting position of the cabinet, when the Kinpo opening/closing cylinder (7) and the locking device (8) are operated simultaneously, the intermediate movable 11 (6) is connected to the rear movable plate (2).
Prior to the advance of the stationary platen (1), the stationary platen (1) moves forward and stops its progress, and this stopped intermediate movable platen (6)
(The injection device (8) is moved, so when the rear movable port (2) contacts the intermediate movable port 11 (63K), the connection of the injection device (8) is completed, so the overflow device (3) Movable platen (2) - The pressure can be immediately increased to @clamping force after the 0 stop, and thus the injection device (8) can be pre-metered.
The Hamayu resin inside is injection zX'#Q (1m movable from l
(6) Press into the cavity in the mold from the 0 hot runner (the nozzle runner after passing through 6ω) *
TIjire, after that molding, it's all 1! Ml! v'llnda (
7) and the clamping device (8), the gold layer is successively released and the parts are injected in preparation for the next injection. In this way, according to the present invention, the fixed and rear movable plates are Since hot runners can be formed on the intermediate movable plate disposed between the intermediate movable plate and the nozzle touches the injection device on either side, the gold layer before and after the intermediate movable plate can be formed as in the above fiL9 conventional example. In particular, there is no need to specialize IP#, and it is possible to combine commonly used gold ■, making it inexpensive and compatible 11! It has the effect of good massage.

4 1ffiliO version simple! The present invention 〇-Examples of the present invention are shown in Figure 1. The figure shows a 0-menmenkaku with an opening and opening.

(1)... Fixed platen (2)... Rear movable platen (3)... L1III device (6)...
...Intermediate movable plate (6G)...Hot runner (8)...Injection 1. Outside location 24

Claims (1)

[Claims] In a multi-stage clamping injection molding machine in which 11 or more movable intermediate molds with gold metal on the front and rear surfaces are arranged between a fixed platen and a rear movable platen having a reservoir clamping device, which movable intermediate platen is provided in the movable intermediate platen? 9. A multi-stage clamping injection molding machine, characterized in that an injection device is formed with a hot runner that touches the nozzle.