Double-mould-opening and double-core-pulling mechanism

Abstract

The invention discloses a double-mould-opening and double-core-pulling mechanism. The mechanism comprises an upper template, a middle template and a lower template, wherein a lateral core pulling mechanism is arranged between the middle template and the lower template and comprises a first lateral slide block and a first inclined guide pillar; the first lateral slide block is slidably arranged onthe lower template and is provided with an inner poking block and an outer poking block; a mould opening spring is arranged between the upper template and the middle template; the middle template is connected with the lower template through a mould locking snap; the first inclined guide pillar is fixedly connected with the upper template; the middle template is provided with a guide groove which is matched with the first inclined guide pillar; the first lateral slide block consists of an upper slide block and a lower slide block; the lower slide block is slidably connected with the lower template; the upper slide block is slidably connected with the upper surface of the lower slide block; both the upper slide block and the lower slide block are provided with an inner poking block and an outer poking block; and the outer poking block of the upper slide block is closer to the first inclined guide pillar than the outer poking block of the lower slide block. The mechanism has the advantages of guaranteeing no deformation of a plastic product during core pulling, guaranteeing accuracy of size of the product, not influencing placement of a metal insert and achieving a simple structure and easiness and convenience for operation.

Description

technical field [0001] The invention relates to a twice-opening and twice-core-pulling mechanism. technical background [0002] Plastic products with inserts such as figure 1 , 2 Shown: A is a plastic part, B is a metal insert, that is, when the mold is formed, the B metal insert needs to be placed in the plastic mold first, and then injected. According to the mold structure requirements, the B metal insert of this product is It needs to be placed in the movable mold of the mold first, and then during the mold closing process, the B metal insert should be inserted into the corresponding hole in the slider to cooperate with the slider, and then the entire plastic product is injection molded, and the slider is used when opening the mold The core-pulling mechanism performs core-pulling. [0003] The mold opening situation of traditional molds is as follows: Figure 1-5 As shown; the mold action of this kind of method is first to open the movable and fixed mold, put the meta...

AI Technical Summary

Problems solved by technology

[0004] When the mold is opened in this way, due to the different structures on both sides of the product, the tightness of the plastic product on both sides of the slider is different. The size of the product cannot meet the requirements of the customer's drawings, and the metal insert part in the rear mold groove will also be stuck inside, and the product is not easy to eject. If you don't pay attention, there will be a possibility of compression molding. At the same time, the plating of the metal insert and The broken chip will also fall into the groove, affecting the placement of the metal insert

Images