CN204869525U - A delayed ejection mold - Google Patents

Abstract

The utility model discloses a time-delay ejection die, which comprises a panel, an A plate, a B plate, a square iron and a bottom plate which are sequentially arranged from top to bottom, and also comprises a time-delay ejection mechanism, wherein the time-delay ejection mechanism comprises a thimble bottom plate, a thimble panel, a movable insert embedded in the thimble bottom plate, a product thimble fixedly connected with the movable insert and a water gap thimble fixedly connected with the thimble bottom plate, a cavity for accommodating the activity of the movable insert is arranged in the thimble bottom plate, the movable insert is in a T-shaped block structure and comprises an upper part with larger area and a lower part with smaller area connected with the upper part, one side of the lower part of the movable insert, which is contacted with a push rod of an injection molding machine, is provided with a concave part, and the concave part is matched with the shape of the push rod of the injection molding machine, the beneficial effects of the utility model are that due to the time-delay effect of the movable, the phenomenon that the product is damaged by pulling when the two are ejected out simultaneously is avoided.

Description

A delayed ejection mold

technical field

The utility model relates to an injection mold, in particular to a time-delayed ejection mold.

Background technique

After the injection molding of some plastic products is completed, when the ejector mechanism of the injection mold ejects the molded product out of the cavity, the nozzle thimble and the molding thimble are ejected together at the same time, and the latent glue outlet of the product is easy to be strained or uneven. Phenomenon.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a delayed ejection mold which is not easy to strain the product.

The utility model solves the problems of the technologies described above through the following technical solutions:

A time-delayed ejection mold, comprising a panel, an A plate, a B plate, a square iron, and a bottom plate arranged in sequence from top to bottom, and also includes a time-delayed ejection mechanism, the time-delayed ejection mechanism includes a thimble bottom plate, The thimble panel, the movable insert embedded in the thimble base, the product thimble fixed to the movable insert, and the outlet thimble fixed to the thimble base, the thimble base is provided with a cavity for the movable insert to move, the The movable insert has a T-shaped block structure, including an upper part with a larger area and a lower part connected with the upper part with a smaller area. The shape of the push rod of the machine matches.

More specifically, the number of the movable inserts is two, and the number of the product thimbles is two groups.

More specifically, the nozzle thimble is located between two groups of product thimbles.

The beneficial effect of the utility model is that, due to the time-delay effect of the movable insert, the nozzle ejector pin and the product ejector pin will eject the nozzle material and the product successively, avoiding the phenomenon that the product will be damaged when both are ejected at the same time.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the movable insert and product thimble of the present invention.

Fig. 3 is a structural schematic diagram of the ejection mechanism of the present invention.

Fig. 4 is a three-dimensional structural schematic diagram of the movable insert formed by the utility model.

Fig. 5 is a front view of the molded movable insert of the utility model.

Detailed ways

The preferred embodiments of the utility model are given below in conjunction with the accompanying drawings to describe the technical solution of the utility model in detail.

This embodiment includes panel 1, plate A 2, plate B 3, square iron 4 and bottom plate 5 arranged in order from top to bottom, and also includes a delay ejection mechanism 6, and the delay ejection mechanism 6 includes ejector pins Bottom plate 61, thimble panel 62, movable insert 66 embedded in the thimble base 61, product thimble 63 fixedly connected to the movable insert 66, and nozzle thimble 64 fixedly connected to the thimble base 61, said thimble base 61 is equipped with The cavity for accommodating the activity of the movable insert 66, the movable insert 66 is a T-shaped block structure including an upper part 662 with a larger area and a lower part 661 with a smaller area connected to the upper part 662, the lower part 661 of the movable insert 66 is connected to The side where the push rod 65 of the injection molding machine contacts is provided with a concave portion 660, and the concave portion 660 matches the shape of the push rod 65 of the injection molding machine.

The number of the movable inserts 66 is two, and the number of the product thimbles 63 is two groups.

The nozzle thimble 64 is located between two groups of product thimbles 63 .

working principle:

The push rod 65 moves upward to abut against the thimble bottom plate 61, and then pushes the thimble bottom plate 61, the thimble panel 62 and the nozzle thimble 64 upwards to move. During this process, the movable insert 66 does not move because it does not conflict with the push rod 65, and the nozzle The thimble 64 will interfere with the nozzle material of the product, and cut the nozzle material from the product to separate it. When the push rod moves upward to the top surface of the concave part 660 of the movable insert 66, the push rod 65 begins to interfere with the movable insert 66, and the movable The insert 66 will move upward together with the thimble bottom plate 61, causing the product ejector 63 to separate the product from the mold cavity. Due to the delay effect of the movable insert 66, the nozzle thimble 64 and the product thimble 63 will respectively press the nozzle material and the product. The ejection action is done sequentially, avoiding the phenomenon of pulling the product when both are ejected at the same time.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (3)

1. a delayed goring mould, it is characterized in that, comprise the panel sequentially arranged from top to bottom, A plate, B plate, square iron and base plate, also comprise a delayed ejector mechanism, described delayed ejector mechanism comprises Ejector Retainer Plate, thimble panel, setting-in is to the loose plug of Ejector Retainer Plate, the product thimble being affixed to loose plug and the mouth of a river thimble being affixed to Ejector Retainer Plate, the cavity holding loose plug activity is provided with in described Ejector Retainer Plate, the T-shaped block structure of described loose plug comprises the larger top of area and the less bottom of the area that is connected with top, the side that described loose plug bottom contacts with the push rod of injection machine is provided with recess, the push rod profile of described recess and injection machine matches.

2. delayed goring mould according to claim 1, is characterized in that, the quantity of described loose plug is two, and described product thimble quantity is two groups.

3. delayed goring mould according to claim 2, is characterized in that, described mouth of a river thimble is between two set product thimbles.