JPS6365002B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for mounting a pair of split molds on both a fixed platen and a movable platen method of an injection molding machine.

In conventional mold mounting, it was necessary to set the distance from the fixed platen to the movable platen in advance in accordance with the thickness of the mold. In addition, it is difficult to keep the mounting surface of the mold suspended from above parallel to the mold mounting surface of the stationary platen, and it takes time to align the molds. A mold setting device was required.

This invention attempts to solve the above-mentioned conventional problems by extremely simple means, and also provides a new mold mounting method that enables automatic mounting without the need for complicated equipment. .

The present invention according to the above object includes a guide plate provided on the upper part of the fixed plate on the same plane as the mold mounting surface, and a mold mounting surface abutted against the guide plate while being suspended from above.
After correcting the mounting posture of the mold, the movable platen is moved close to the mold while maintaining that state, and then the mold is lowered to the mounting position and mounted.

The present invention will be explained in detail below using illustrated examples.

In the figure, 1 is a fixed plate, 2 is a movable plate, and 3, 3 are tie bars. The upper part of the fixed platen 1 has a mold mounting surface 1a.
A guide plate 4 is attached to the same surface as the guide plate 4, and the right side of the guide plate 4 is formed with a protrusion 5 for left and right positioning.

6 is a sensor for confirming mold contact, which is provided on the guide plate 4; and 7 is a sensor provided on the upper part of the movable platen 2 for confirming the movement position. Furthermore, upper and lower positioning stoppers 8, 8 are protruded from the lower parts of the mold mounting surfaces 1a, 2a of the fixed platen 1 and the movable platen 2, and a temperature control medium universal joint 9 is arranged below them. There is.

10 is a hydraulically operated mold fixing device provided in pairs facing each other inside the tie bars 3, 3;
A pair of split molds 11 and 12 have a mold fixing device 1
0 so that it can be mounted at predetermined positions on the fixed platen 1 and the movable platen 2.

The molds 11 and 12 are mounted on mounting plates 11a and 11a, respectively.
12a, and is pivotally suspended in a closed state at the upper part between the fixed platen 1 and the movable platen 2, which are sufficiently opened, via a hanging fitting 13 protruding from the upper part. The molds 11 and 12 are first moved in the direction of the guide plate 4. This movement is performed by operating a mold lifting device (not shown), and the mounting postures of the molds 11 and 12 are corrected by bringing the mounting surfaces into contact with the guide plate 4. This confirmation is performed by the sensor 6, which is activated when the mounting surface fully contacts the guide plate surface. Once the above confirmation is made, the movable platen 2 is then moved in the mold closing direction. When the movable platen 2 moves close to the mounting surface of the mold 12, the position is confirmed by the operation of the sensor 7, and the movable platen 2 stops leaving enough room to lower the molds 11 and 12. .

Next, the molds 11 and 12 are lowered using the mold mounting surfaces 1a and 2a of the fixed platen 1 and the movable platen 2 as guides. Since the molds 11 and 12 are held between the mold mounting surfaces 1a and 2a, the positioning stopper 8,
Listed on 8th. Then, the universal joint 9 is connected, and the temperature regulating medium is supplied to the molds 11 and 12. The vertical position can also be confirmed using a sensor (not shown in the figure), and when the position is confirmed, the mold fixing devices 10, 10 are activated immediately or after the mold is clamped to hold the mold at the set position. Hold.

As described above, this invention provides a guide plate 4 on the same surface as the mold mounting surface on the upper part of the fixed platen 1, and this guide plate 4
After correcting the mounting posture by touching the mounting surface of the mold 11 to the mold 1, move the movable platen 2 in the mold closing direction and
1, 12 is prevented from being displaced, and then the mold 11,
12 is lowered to the mounting position and then mounted, so the mold can be mounted at the set position regardless of the thickness of the mold. In addition, no complicated operations or equipment are required for mounting, and no strict requirements are required for hanging the mold, so a simple hanging device is sufficient, and automatic mounting can be performed using sensors, etc. It has the following features.

[Brief explanation of drawings]

The drawings illustrate the mold mounting method according to the present invention, and FIG. 1 is a plan view of the mold clamping mechanism, FIG. 2 is a mold mounting surface view of the fixed platen, and FIG. 3 is a mold mounting surface diagram of the movable platen. , 4 and 5 are side views of the mold clamping mechanism showing the mounting process. DESCRIPTION OF SYMBOLS 1... Fixed plate, 1a, 2a... Mold mounting surface, 2... Movable plate, 3... Tie bar, 4... Guide plate, 8... Positioning stopper, 10... Mold fixing device, 11, 12...
Mold.

Claims (1)

[Claims] 1. When installing a pair of split molds on the mold mounting surfaces of a fixed plate and a movable plate in a closed state, a guide plate is provided on the upper part of the fixed plate on the same surface as the mold mounting surface, and the upper Touch the mounting surface of the mold while hanging from the mold, correct the mounting posture of the mold by the appropriate contact, then move the movable plate close to the mold while maintaining this state, and then lower the mold to the mounting position. A mold mounting method characterized in that the mold mounting method is performed by