CN201848953U - Mold with ejector mechanism - Google Patents

Abstract

The utility model discloses a mold with an ejection mechanism, including a female mold, a male mold, a lower fixed plate, an upper ejection plate, at least one upper ejector pin, a lower ejection plate, at least one lower ejector pin and at least one stroke control mechanism; the male and female molds are arranged relatively to each other, and when the molds are closed, the male and female molds surround the molding cavity; a receiving space is formed between the lower fixed plate and the male mold; the upper fixed plate and the lower fixed plate are located in the receiving space and can move up and down in the receiving space, the upper ejector pin is fixed on the upper ejection plate, and the lower ejector pin is fixed on the lower ejector pin plate; the stroke control mechanism includes a side pressure block, an elastic member, a cross block and an upper push block. The mold with an ejection mechanism of the utility model controls the ejector pin through the stroke control mechanism, and ejects the product in two stages, thereby realizing full-automatic product shedding, thereby improving production efficiency.

Description

Mold with ejector mechanism

technical field

The utility model relates to a mold, in particular to a mold with an ejection mechanism.

Background technique

Please refer to Fig. 1, a product 200 has a bottom wall 201 and a side wall 202, and the side wall 202 and the bottom wall 201 form a groove shape. The thimble 50' of the thimble will extend into the groove of the product 200, so the product 200 is not easy to remove, thereby reducing the production efficiency and increasing the risk of operation.

Utility model content

The purpose of the utility model is to provide a mold with an ejection mechanism which can conveniently remove products and improve production efficiency.

In order to achieve the above object, the mold of the utility model tool ejection mechanism includes a female mold, a male mold, a lower fixing plate, an upper ejector plate, at least one upper ejector pin, an upper ejector plate, at least an lower ejector pin and at least one Stroke control mechanism; the female mold and the male mold are set opposite to each other, and the male and female molds surround the molding cavity when the molds are closed; the lower fixing plate is located below the male mold, and a receiving space is formed between the male mold and the lower fixing plate; the upper ejection The board can be movably located in the storage space, and a storage groove is provided on the side of the upper ejection board; the upper ejector pin is fixed on the upper ejection board, and one end of the upper ejector pin can correspond to the side wall near the bottom wall of the product; The lower ejector plate is movably located in the receiving space; the lower ejector pin is fixed on the lower ejector plate, and one end of the lower ejector pin can correspond to the end edge of the side wall of the product; the stroke control mechanism includes a A side pressing block on the side of the formwork, a cross block movably installed in the storage groove of the upper ejection plate, an elastic member accommodated in the storage groove and an upper push block fixed on the side of the lower ejection plate , the side pressing block has a side pressing surface extending obliquely, the cross block has a guiding surface, the elastic member can push the outer end of the cross block out of the receiving groove, and the upper push block can push against the outer end of the cross block, and the side The pressing block can push the outer end of the cross block into the receiving groove through the side pressing surface.

As mentioned above, the mold with the ejection mechanism of the utility model controls the ejector pin through the stroke control mechanism, and ejects the product in two stages, so that the product can be fully automatic falling off, thereby improving production efficiency.

As a further improvement, the female mold includes a female template and a female mold core fixed on the female template, the male mold includes a male template and a male mold core fixed on the male template, and the cavity is composed of the male mold core and the female mold. Ren surrounded.

The upper ejector plate is provided with two upper thimbles, and the lower ejector plate is provided with two lower thimbles.

The side pressing block has two side pressing parts, the ends of the side pressing parts are formed with the side pressing surfaces, and the push-up block can extend into between the two side pressing parts.

A limiter is fixed on the side of the upper ejection plate, and the limiter and the upper ejection plate form a passage groove, and the side pressure part and the upper push block can extend into the passage groove.

A limit pin is provided on the lower end surface of the male template.

Description of drawings

Fig. 1 is the schematic diagram of existing a kind of mold when product demoulding;

Fig. 2 is the structure schematic diagram before the die opening of the tool ejection mechanism of the utility model;

Fig. 3 is a structural schematic diagram of the stroke control mechanism shown in Fig. 2;

Fig. 4 is a schematic diagram of the relationship between the limiter and the cross block shown in Fig. 2;

Fig. 5 is the schematic diagram of the first state in the mold opening process of the utility model tool ejection mechanism;

Fig. 6 is the schematic diagram of the second state in the mold opening process of the utility model tool ejection mechanism;

Fig. 7 is a schematic diagram of the third state during the mold opening process of the mold with the ejection mechanism of the present invention.

The reference signs in the figure are explained as follows:

Mold with ejection mechanism 100 Master mold 10

Mother template 11 Mother mold core 12

Male model 20 Male template 21

Male model kernel 22 Limit pin 23

Lower fixing plate 30 Ejector hole 31

Storage space 40 machine push rod 50

Upper ejector plate 60 Upper ejector pin 61

Storage slot 62 Lower ejection plate 70

Lower thimble 71 Stroke control mechanism 80

Side pressure block 81 Side pressure part 811

Side pressing surface 812 Cross block 82

Guide surface 821 Elastic piece 83

Limiting piece 84 Push up block 85

Through groove 86 Support block 90

Product 200 Bottom Wall 201

Side wall 202

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.

Please refer to Fig. 2 to Fig. 4, the mold 100 of tool ejection mechanism of the present invention comprises a female mold 10, a male mold 20, a lower fixing plate 30, a machine push rod 50, an upper ejector plate 60, two upper Ejector 61, ejection plate 70 once, two ejector pins 71, two stroke control mechanisms 80 and two supporting blocks 90.

The master mold 10 has a master template 11 and a master mold core 12 .

The male die 20 is set correspondingly to the female die 10, the male die 20 has a male die 21 and a male die core 22, and a limit pin 23 is fixedly set on the lower end surface of the male die 21; Kernel 12 can surround molding cavity (not marked in the figure). The lower fixing plate 30 is located below the male template 21 , and is provided with a mandrel hole 31 for the ejector mandrel 50 of the injection machine to pass through. The two support blocks 90 are supported between the male template 21 and the lower fixing plate 30 so that a receiving space 40 is formed between the male template 21 and the lower fixing plate 30 .

The upper ejector plate 60 and the lower ejector plate 70 are located in the receiving space 40 and can move up and down in the receiving space 40 . The upper ejector plate 60 is provided with two receiving grooves 62 on the side wall. The two upper ejector pins 61 are fixed on the ejector plate 60, and one end of the two upper ejector pins 61 can correspond to the side wall 202 near the bottom wall 201 of the product 200; the two lower ejector pins 71 are fixed on the lower ejector plate 70 One end of the two lower thimbles 71 can correspond to the end edge of the side wall 202 of the product, so that the upper thimble 61 can hold the side wall 202 from the inside to ensure that the lower thimble 71 is abutted against the end edge of the side wall 202 .

The stroke control mechanism 80 includes a side pressing block 81 fixed on the side of the male template 20, a cross block 82 movably installed in the receiving groove 62 of the upper ejection plate 60, a horizontal block 82 accommodated in the receiving groove 62 The inner elastic member 83 , a position limiting member 84 fixed on the upper ejector plate 60 and an upper push block 85 fixed on the side of the lower ejector plate 70 . The side pressing block 81 has two side pressing parts 811 protruding downwards, the side pressing parts 811 have a side pressing surface 812 extending obliquely, the cross block 82 has a guiding surface 821, and the elastic member 83 The outer end of the block 82 pushes out the receiving groove 62, and the stopper 84 and the upper ejection plate 60 form a passage groove 86 (as shown in Figure 4), and the side pressure part 811 and the upper push block 85 can extend into the passage groove 86. groove 86, so that the limiting member 84 can protect the side pressure portion 811 and the upper push block 85, and prevent the side pressure portion 811 and the upper push block 85 from being excessively deformed due to the reaction force of the cross block 82. The pushing block 85 can push against the outer end of the cross block 82 , and the side pressing block 81 can push the outer end of the cross block 82 into the receiving groove 62 through the side pressing surface 812 .

Please continue to refer to Fig. 2 to Fig. 4, when the mold 100 with the ejector mechanism of the present invention is closed, a certain space is left between the upper ejector plate 60 and the lower ejector plate 70, after forming the product 200, the upper push block 85 Butt against the bottom of the outer end of the cross block 82 , one end of the two upper thimbles 61 abuts against the bottom wall 201 of the product, and one end of the lower thimble 71 abuts against the side wall 202 of the product.

Please refer to FIG. 5 to FIG. 7 , which are schematic diagrams of different stages of the mold opening process of the mold 100 with ejection mechanism of the present invention, wherein the push rod 50 of the machine provides the power for ejection.

Please refer to Fig. 5. During the mold opening process, firstly, when the machine push rod 50 pushes up the lower ejector plate 70, the upper push block 85 drives the upper ejector plate 60 to move upward together by pushing the lower part of the outer end of the cross block 82. , the upper thimble 61 and the lower thimble 71 push the product 200 away from the male mold kernel 22.

Please refer to Figure 6, subsequently, the machine push rod 50 continues to push up the lower ejector plate 70, and the side pressing surface 812 of the side pressing block 81 is in contact with the guiding surface 821 of the cross block 82 so that the cross block 82 gradually shrinks. Recover the receiving groove 62, when the receiving groove 62 is fully retracted, the upper ejector plate 60 is against the limit pin 23 on the lower end surface of the male template 21, and the two upper ejector pins 61 stop ejecting upward.

Please refer to Fig. 7, the two lower thimble pins 71 continue to push out the product 200 until the lower thimble plate 70 abuts against the upper thimble plate 60, at this time, the two upper thimble pins withdraw from the groove of the product 200, so that the product 200 can be easily removed. The next product is 200.

When the mold 100 with the ejector mechanism of the utility model is closed, the upper ejector plate 60 and the lower ejector plate 70 return to their positions, so that the upper ejector pin 61, the lower ejector pin 71 and the upper push block 85 all return to their positions, and the cross block 82 also It returns to its original position under the pushing action of the elastic member 83 .

As mentioned above, the mold 100 with the ejection mechanism of the present invention controls the upper thimble 61 and the lower thimble 71 through the stroke control mechanism 80, and ejects the product 200 in two stages, so that the product 200 can be fully automatic falling off, so that Increase productivity.

Claims (6)

1. A mold with an ejection mechanism, which is used to form a product with a bottom wall and a side wall and the side wall and the bottom wall form a groove shape, including a female mold, a male mold, a lower fixing plate, and an upper top Ejection plate, at least one upper thimble, lower ejection plate, at least one lower thimble and at least one stroke control mechanism, the female mold is set opposite to the male mold, and can surround the molding cavity; the lower fixing plate is located below the male mold, A receiving space is formed between the male mold and the lower fixing plate; the upper ejector plate is movably located in the receiving space; the upper ejector pin is fixed on the upper ejector plate, and one end of the upper ejector pin can correspond to the end of the product. The bottom wall is close to the side wall; the lower ejector plate is movably located in the storage space; the lower ejector pin is fixed on the lower ejector pin plate, and one end of the lower ejector pin can correspond to the end edge of the side wall of the product ; It is characterized in that: the side of the upper ejection plate is provided with a storage groove, and the stroke control mechanism includes a side pressure block fixed on the side of the male template, and a side pressure block movably installed on the upper ejection plate. The horizontal block in the storage groove, an elastic member accommodated in the storage groove and an upper push block fixed on the side of the lower ejection plate, the side pressure block has a side pressure surface extending obliquely, and the cross block has a On the guide surface, the elastic member can push the outer end of the cross block out of the storage groove, and the upper push block can push against the outer end of the cross block, and the side pressing block can push the outer end of the cross block into the storage groove through the side pressing surface. 2. The mold of tool ejection mechanism as claimed in claim 1, is characterized in that: wherein said female mold comprises female template and the female mold kernel that is fixed on the female template, male mold comprises male template and is fixed on the male template The male mold core, the cavity is surrounded by the male mold core and the female mold core. 3. The mold with ejector mechanism according to claim 1, wherein the upper ejector plate is provided with two upper ejector pins, and the lower ejector plate is provided with two lower ejector pins. 4. The mold with an ejection mechanism as claimed in claim 1, wherein the side pressing block has two side pressing parts, the ends of the side pressing parts are all formed with the side pressing surfaces, and the upper pushing block It can be inserted between the pressing parts on both sides. 5. The mold with ejector mechanism as claimed in claim 4, characterized in that: a limiter is fixed on the side of the upper ejector plate, and the limiter and the upper ejector plate form a passage groove, the The side pressing part and the push-up block can extend into the passing groove. 6. The mold with an ejection mechanism as claimed in claim 2, wherein a limit pin is provided on the lower surface of the male template.

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