Injection molding machine with combination plate of temperature adjustment pipe

Abstract

The invention relates to an injection molding machine with a combination plate of a temperature adjustment pipe. The injection molding machine is provided with the combination plate, with which a mold is arranged on a mold disc (which is a movable disc or a fixed disc). The combination plate is provided with a first surface arranged on the mold disc and a second surface which is opposite to the first surface and arranged on the mold. The first surface is provided with a combination portion with an area smaller than the area of the installation surface arranged on the second surface connected with the mold disc. In addition, the temperature adjustment pipe is provided at the position corresponding to the combination portion.

Description

technical field [0001] The present invention relates to an injection molding machine provided with a joint plate for attaching a mold to a fixed platen and / or a movable platen, and having a temperature adjustment pipe attached to the joint plate, and having a joint plate with a temperature adjustment pipe. Background technique [0002] In precision molding such as lens molding, slight deviation of the mold affects the molded product. Therefore, it is necessary to perform the operation of opening and closing the mold with high precision. Regarding the accuracy of mold opening and closing, the parallelism and positional deviation (eccentricity) of the fixed platen and movable platen affect the molded product. As a cause of deteriorating the precision, thermal deformation of the molding machine is cited. In precision molding of lenses and the like, molding may be performed at a mold temperature of 80 to 130°C. At this time, the temperature of the mold is transmitted to the p...

AI Technical Summary

Problems solved by technology

[0003] The lower side of the fixed disk and the movable disk are often combined with the base frame or in contact with the base frame, and the heat is easy to escape, resulting in a large temperature difference between the upper and lower directions of the disk surface.

In addition, as disclosed in the aforementioned Japanese Patent Application Laid-Open No. 2003-266478, there is also a method of installing a sensor to detect the inclination of the fixed plate, and performing control to correct the inclination, but the system requires sensors and the like, making it an expensive system.

In addition, due to the need to directly process the disk surface, it is very difficult to apply to the assembled machine

In addition, in the technique disclosed in the aforementioned Japanese Patent Application Laid-Open No. 9-29747, a detachable heat insulating unit is known, but since the heat insulating unit is in close contact with the entire disk surface, the contact area with the disk surface is large.

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