CN201941133U - Injection mould - Google Patents

Abstract

The utility model discloses an injection mold. The injection mold comprises a fixed mold, a movable mold and a push-out mechanism; the movable mould comprises a movable mould plate, an ejector fixing plate, a plurality of ejectors and a mould core, wherein the ejector plate is provided with a containing groove, the tail ends of the ejectors are respectively provided with an insert, and the mould core, the insert and the fixed mould are matched to form a mould cavity; the ejecting mechanism comprises a movable ejecting block, an ejector rod, a limiting column and a resetting column, the movable ejecting block is provided with a base block and an ejector block, the lower end of the base block is provided with a pressing surface, the movable ejecting block can be arranged in the accommodating groove in a swinging mode, one end of the ejector rod abuts against the end face of the ejector block, one end of the limiting column is fixed on the movable template, the other end of the limiting column can abut against the base block to drive the movable ejecting block to swing, and the resetting column can abut against the pressing surface to drive the movable ejecting block to reset. The utility model discloses a be equipped with release mechanism on the movable mould to make the smooth drawing of patterns of product, ensure product appearance quality.

Description

injection mold

technical field

The utility model relates to a mold, in particular to an injection mold.

Background technique

In the field of injection molds, when forming a cylindrical product with a large parting area, the mold is generally opened by a push plate ejection method to eject the product.

However, when the injection molded product is demolded, the product has a very strong wrapping force, and the product is likely to stick to the mold when the push plate is ejected, resulting in poor appearance such as product strain, which is not conducive to improving the appearance quality of the product.

Utility model content

The purpose of the utility model is to provide an injection mold which can make the product demould smoothly and ensure the appearance quality of the product.

In order to achieve the above object, the injection mold provided by the utility model includes a fixed mold, a movable mold corresponding to the fixed mold and a push-out mechanism; For the core installed on the movable template, there is a receiving groove on the thimble plate, a receiving groove on the thimble fixed plate, the thimble is fixed on the thimble plate, and an insert is installed at the end of the thimble, the core, the insert and the The fixed mold cooperates to form a cavity of a molded product; the ejection mechanism is installed on the movable mold, and the ejection mechanism includes a movable ejector block, an ejector rod, a limit column and a reset column, and the movable ejector block has a base block And a top block, the lower end of the base block is provided with a pressure surface, the movable ejector block is swingably installed in the storage tank, one end of the ejector rod passes through the movable template and the core and protrudes from the end of the core, the ejector rod The other end is against the end face of the top block, one end of the limit column is fixed on the movable formwork and the other end can be against the base block to drive the movable ejector block to swing, and the reset column can be against the pressing surface to drive the movable top Block reset.

As mentioned above, the injection mold of the utility model is equipped with a push-out mechanism on the movable mold, and then the product can be ejected twice when the mold is opened, so that the product can be demolded smoothly and the appearance quality of the product is guaranteed.

As a further improvement, the movable ejection block is swingably installed in the receiving groove through a fixed pin.

Description of drawings

Fig. 1 is the cross-sectional view after the utility model injection mold clamping;

Fig. 2 is the sectional view of the first stage of mold opening of the utility model injection mold;

Fig. 3 is a cross-sectional view of the second stage of mold opening of the injection mold of the present invention.

The reference signs in the figure are explained as follows:

Injection mold 1

Moving mold 10 Moving mold fixing plate 11

Moving template 12 Ejector plate 13

Storage tank 131 Thimble fixing plate 14

Accommodating slot 141 Thimble pin 15

Core 16 Insert 17

Fixed mold 20 Push out mechanism 30

Active jacking block 31 Base block 311

Pressure surface 312 Top block 313

Ejector bar 32 Limit post 33

Reset post 34 Fixed pin 40

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Referring to FIGS. 1 to 3 , the injection mold 1 of the present invention includes a movable mold 10 , a fixed mold 20 corresponding to the movable mold 10 and a push-out mechanism 30 installed on the movable mold 10 .

In this embodiment, the movable mold 10 includes a movable mold fixed plate 11 , a movable template 12 , an ejector pin plate 13 , an ejector pin fixed plate 14 , a plurality of ejector pins 15 and a core 16 installed on the movable template 12 . A thimble fixed plate 14 is provided above the movable mold fixed plate 11, and a thimble plate 13 is fixedly arranged on the thimble fixed plate 14, and a movable template 12 is arranged at a certain distance above the thimble plate 13, so that the thimble plate 13 and the thimble fixed plate 14 Displace between the movable mold fixed plate 11 and the movable mold plate 12. The thimble plate 13 is provided with a receiving groove 131 , and the thimble fixing plate 14 is provided with a receiving groove 141 . The thimble pins 15 are fixed on the thimble plate 13 , and the ends of the thimble pins 15 are respectively equipped with an insert 17 .

Please continue to refer to FIG. 1 and FIG. 3 , the ejection mechanism 30 includes a movable ejector block 31 , a ejector rod 32 , a position limiting post 33 and a reset post 34 . The movable ejector block 31 has a square base block 311, and the lower end of the base block 311 is provided with a beveled pressing surface 312, and the lower end of the left side of the base block 311 is provided with a top block 313, and the movable ejector block 31 passes through a fixed pin 40 is installed in the receiving groove 131 of the ejector plate 13, the movable ejector block 31 can swing along the fixed pin 40 in the receiving groove 131, and one end of the ejector rod 32 passes through the movable template 12 and the core 16 and protrudes from the core 16 end, the other end of the push rod 32 abuts against the end face of the top block 313 . One end of the limiting post 33 is fixed on the movable template 12 , and the reset post 34 is movably inserted into the receiving groove 141 of the thimble fixing plate 14 .

Please refer to Fig. 1 , when the injection mold 1 is closed, the core 16, the insert 17 and the end face of the fixed mold 20 cooperate to form a cavity (not shown) of a molded product. The reset post 34 abuts against the pressing surface 312 of the movable ejector block 31 , so that the movable ejector block 31 returns to its original position.

Please refer to Fig. 2, when the injection mold 1 is opened in the first stage, the injection molding machine (not shown) pushes the thimble fixed plate 14 to move upward, and the thimble fixed plate 14 and the thimble plate 13 drive the thimble 15 and the ejector pin 32 to push out the product simultaneously, so that The product is released from the core 16.

Please refer to FIG. 3 , when the injection mold 1 is opened in the second stage, the injection molding machine (not shown) pushes the thimble fixed plate 14 to continue to move upward, and the limit post 33 of the push-out mechanism 30 abuts against the base block of the movable ejector block 31 311 end face and make the movable ejector block 31 swing clockwise, at the same time, the ejector block 313 of the movable ejector block 31 pushes up the ejector rod 32, so that the product is separated from the insert 17, so that the product can be ejected smoothly and completely.

As mentioned above, the injection mold 1 of the utility model is equipped with a push-out mechanism 30 on the movable mold 10, and then the product can be ejected twice when the mold is opened, so that the product can be demoulded smoothly and the appearance quality of the product is guaranteed.

Claims (2)

1. an injection mold, be used for the moulding injecting products, this injection mold comprise a cover half and one with the dynamic model of the corresponding setting of cover half, dynamic model comprises that a moving platen, an ejector retainner plate, a thimble fixed head, some thimbles and are installed in the core on the moving platen, thimble is fixed on the ejector retainner plate; It is characterized in that: ejector retainner plate is provided with an accepting groove, and the thimble fixed head is provided with a storage tank, and the thimble end is equiped with one respectively and inserts, and core, inserting cooperates the die cavity that forms a shaped article with cover half; Be equiped with an ejecting mechanism on the dynamic model, ejecting mechanism comprises a movable angled slide block, a push rod, a limited post and a reset post, movable angled slide block has a matrix and a jacking block, this matrix lower end is provided with one and compresses face, movable angled slide block is installed in the accepting groove swingably, push rod one end passes moving platen and core and stretches out in the core end, the push rod other end is resisted against the jacking block end face, limited post one end is fixed on the moving platen and the other end can be resisted against on the matrix and the swing of drive activity angled slide block, and reset post can be resisted against on the face of compressing and the drive activity ejects block reset.

2. injection mold as claimed in claim 1 is characterized in that: described movable angled slide block is to adorn swingably in the Let what accepting groove by a steady pin.

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