Clamp for horizontally machining injection head plate of injection molding machine

Abstract

The invention discloses a clamp for horizontally machining injection a head plate of an injection molding machine. The clamp structurally comprises the injection head plate, a connecting seat, a clamp and an injection head hole, wherein the upper side of the injection head plate is welded with the lower side of the connecting seat, the middle part of the connecting seat is connected with a lower end shaft of the clamp, and the injection head hole is fixedly embedded with the middle part of the injection head plate; the distance between a buffering clamping head and a cooling supporting column is shortened through an adjusting screw rod, when the adjusting screw rod clamps a mold, a main body block in the buffering clamping block abuts against a movable clamping block through an elastic piece, then sealing and buffering are conducted through a compression gasket, the buffering capacity of the clamp is improved, the clamp is prevented from being pulled by the thermal expansion effect of the mold, the tension subjected to the clamp is reduced and the main body block moves downwards, air in a compression cavity at the upper end of a bearing column is compressed, then the compressed air is extruded to dispersion holes in a fixing block from a connecting pipe of an air blowing pipe to be blown out towards the outer side, the temperature rising speed is slowed down, and a gap is prevented from being formed between the glue injection head plate 1 and the mold.

Description

technical field [0001] The invention belongs to the field of equipment for injection molding, and more specifically relates to a fixture for horizontal processing of the injection head plate of an injection molding machine. Background technique [0002] Horizontal injection molding machine is a kind of mold that can let the mold drop by itself. During the injection molding process, the melt is extruded from the injection head by extrusion from the rubber barrel, and then the space inside the mold is filled. The injection head plate and the main body of the mold for injection are used to fix the injection head through the clamp, but since the injection head plate needs to heat the melt during the injection molding process to prevent the melt from cooling during the extrusion process, While heating the melt, the temperature of the mold will be raised. At the same time, due to the small contact area between the mold and the fixture, when the mold is heated to generate weak expa...

AI Technical Summary

Problems solved by technology

[0002] Horizontal injection molding machine is a kind of mold that can let the mold drop by itself. During the injection molding process, the melt is extruded from the injection head by extrusion from the rubber barrel, and then the space inside the mold is filled. The injection head plate and the main body of the mold for injection are used to fix the injection head through the clamp, but since the injection head plate needs to heat the melt during the injection molding process to prevent the melt from cooling during the extrusion process, While heating the melt, the temperature of the mold will be raised. At the same time, due to the small contact area between the mold and the fixture, when the mold is heated to generate weak expansion, it will form tension on the fixture, resulting in the length of the fixture being elongated, and the nut of the fixture will also be adjusted. Cause deformation, as the injection molding time increases, the temperature on the mold surface will be transmitted to the fixture, and the fixture will extend its length under the influence of thermal expansion, which increases the metal fatigue of the fixture, and at the same time makes the injection head plate and the mold. In a narrow gap, the melt will enter the gap and solidify to form burrs, which will reduce the injection volume of the runner and make it difficult to control the injection volume

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