CN203580017U - Mould - Google Patents

Abstract

The utility model discloses a mold, which comprises a female mold and a male mold; the male mold includes an ejector plate group, a plurality of first thimbles, a plurality of second thimbles and a plurality of third thimbles; There is at least one movable groove; each of the first thimbles is fixedly installed on the ejector plate group; the second thimble is installed on the upper part of the movable groove; the third thimble is installed in the movable groove up and down In the lower part of the lower part, the third ejector pin is against the second ejector pin; when the mold is opened, the ejector plate group moves upward and drives the first ejector pin to move upward to eject the product; continue to open the mold, and the ejector plate group continues to move upward to continue to move the product. At the same time, the ejector plate group drives the third thimble to move upward, and the third thimble pushes the second thimble to move upward and pushes the material head out to complete the mold opening. When the mold of the utility model is opened, the product and the material head are ejected asynchronously, and the product will not be damaged by the ejection of the material head, thereby ensuring the appearance and quality of the product.

Description

mold

technical field

The utility model relates to the mechanical field, in particular to a mold.

Background technique

Mold is an important process equipment for the production of various craft products. Many of the products we use in our daily life are formed by molds. With the rapid development of the plastics industry and the promotion and application of plastic products in aerospace, electronics, machinery and other fields, the shapes of products are becoming more and more complex, and the requirements for molding processes of molds are higher.

When the molded product has high requirements on appearance and needs to be able to realize automatic production, it is usually formed by latent glue injection, and its gate is a latent gate. When demolding, because the latent gate is very close to the product , if the existing thimble is used to eject the material head and the product synchronously, the material head at the latent gate may damage the product when it is ejected, thereby affecting the appearance and quality of the product.

Utility model content

The purpose of this utility model is to provide a mold that ensures the appearance and quality of the product when demoulding, aiming at the deficiencies of the above-mentioned prior art.

In order to achieve the above object, the utility model provides a mold, the product used for molding is formed by latent glue feeding, which includes a female mold and a male mold corresponding to the female mold; the female mold includes a female mold kernel, There is at least one first cavity on the female mold core; the male mold includes a lower fixing plate, a male template, a male mold core, two partition plates, an ejector plate group, a number of first thimbles, and a number of second thimbles and a number of third thimbles; the male mold core is installed on the male template, and at least one second cavity and a flow channel communicating with the second cavity are opened on the male mold core, and the male mold core and the female mold core are correspondingly matched , the second cavity cooperates with the first cavity to form the cavity of the molded product; the two partition plates are fixed between the lower fixed plate and the male template and form a receiving space with the lower fixed plate and the male template; the top The ejection plate group can be installed in the storage space movable up and down, and at least one movable groove is opened in the ejection plate group; the first thimbles are fixed on the ejection plate group and pass through the male template and the male template. The mold core extends into the cavity; the lower end of the second thimble is installed in the movable groove and can move up and down in the movable groove, and the upper part of the second thimble extends into the runner through the male template and the male mold core; the said The upper end of the third thimble is installed in the movable groove and can move up and down in the movable groove. The upper surface of the third thimble is against the lower surface of the second thimble. The lower protrusion protrudes; when the mold is closed, the lower part of the third thimble is against the upper surface of the lower fixed plate, and the product and material head are formed in the cavity and the flow channel; when the mold is opened, the female mold moves upward and drives the female mold core to move upward , the ejector plate group moves upwards and drives the first thimble to move upwards to push the product against the second cavity of the male mold core and push it upwards for a certain distance. At this time, the product is separated from the material head, and the second thimble remains motionless ;Continue to open the mold, the ejector plate group continues to move upwards and drives the first thimble to continue to move upwards to continue to eject the product upwards. At the same time, the ejector plate group drives the third thimble to move upwards, and the third ejector pin pushes the first The second thimble moves upward and pushes the material head out of the runner to complete the mold opening.

In a preferred embodiment, the ejector plate set includes an upper ejector plate and a lower ejector plate fixed on the lower surface of the upper ejector plate, and a described activity slot.

In a preferred embodiment, a first blind hole is opened upwards on the lower surface of the upper ejector plate, and the bottom wall of the first blind hole is upwardly opened with a diameter smaller than the first blind hole penetrating the upper surface of the upper ejector plate. The first through hole; the upper surface of the lower ejector plate corresponding to the first blind hole is provided with a second blind hole, and the bottom wall of the second blind hole is downwardly provided with a hole that penetrates the lower surface of the lower ejector plate A second through hole with a diameter smaller than the second blind hole; the second thimble has a cylindrical first base, and a first needle body with a diameter smaller than the first base protrudes upward from the upper surface of the first base; The third thimble has a cylindrical second base, the upper surface of the second base protrudes upwards with a second needle body with a diameter smaller than the second base; the first blind hole and a corresponding first The two blind holes enclose a movable groove, the first base part is accommodated in the upper part of the movable groove up and down, the first needle part passes through the first through hole and extends into the flow channel, and the second base part moves up and down Accommodated in the lower part of the movable groove, the second needle part passes through the second through hole and can abut against the lower fixing plate.

As mentioned above, at least one movable groove is opened in the mold of the utility model through the ejector plate group, and the second ejector pin and the third ejector pin are correspondingly installed in the movable groove. The product will not be damaged by bullets when the head is pushed out, ensuring the appearance and quality of the product.

Description of drawings

Fig. 1 is the schematic diagram of the mold clamping state of the utility model mold.

Fig. 2 is a schematic diagram of the first stage of mold opening of the utility model shown in Fig. 1 .

Fig. 3 is a schematic diagram of the second stage of mold opening of the utility model shown in Fig. 1 .

Fig. 4 is an enlarged view of IV of the mold of the present invention shown in Fig. 1 .

The reference numerals of each component in the figure are explained as follows.

Mold 100 Master Mold 10

Upper fixing plate 11 Mother template 12

Master core 13 1st cavity 131

Male mold 20 Lower fixed plate 21

Male template 22 Male model kernel 23

Second Cavity 231 Runner 232

Partition boards 24 Ejector plate group 25

Upper ejection plate 251 1st blind hole 2511

The first through hole 2512 Lower ejection plate 252

Second blind hole 2521 Second through hole 2522

First Thimble 26 Second Thimble 27

First base 271 First needle body 272

Third thimble 28 Second base 281

Second Needle Body 282 Containment Space 29

Product 200 Runner 201.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following examples are given to describe the embodiments in detail with accompanying drawings.

Please refer to FIG. 1 , the mold 100 of the present invention is used to form a product 200 formed by latent glue injection, which includes a female mold 10 and a male mold 20 corresponding to the female mold 10 .

Please continue to refer to FIG. 2 , the master mold 10 includes an upper fixing plate 11 , a master template 12 and at least one master mold core 13 . The master template 12 is mounted on the upper fixing plate 11 , the female mold core 13 is mounted on the female template 12 , and at least one first cavity 131 is opened on the female mold core 13 .

Please refer to Fig. 1 to Fig. 4, described male mold 20 comprises a fixed plate 21, a male template 22, a male mold core 23, two partition plates 24, an ejector plate group 25, some first thimbles 26, some Two thimbles 27 and some third thimbles 28. The two partition plates 23 are fixed between the lower fixing plate 21 and the male template 22 and form a receiving space 29 between the lower fixing plate 21 and the male template 22 . The male mold core 23 is installed on the male template 22, and the male mold core 23 is provided with at least one second cavity 231 and a flow channel 232 communicating with the second cavity 231. The male mold core 23 and the female mold core 13 Correspondingly, the second cavity 231 cooperates with the first cavity 131 to form the cavity of the molded product 200 . Each of the first ejector pins 26 is fixed on the ejector plate group 25 and extends into the mold cavity through the male template 22 and the male mold core 23 . The ejector plate group 25 can be installed in the accommodation space 29 so that it can move up and down. The ejector plate group 25 includes an upper ejector plate 251 and a lower ejector plate 252 fixed on the lower surface of the upper ejector plate 251. At least one movable groove is provided between the upper ejector plate 251 and the lower ejector plate 252 in the ejector plate group 25, and the lower end of the second thimble 27 is installed in the movable groove and can move up and down in the movable groove. The tops of the two thimbles 27 extend into the runner 232 through the male template 22 and the male die core 23, and the upper end of the third thimble 28 is installed in the movable groove and can move up and down in the movable groove. The upper surface is against the lower surface of the second ejector pin 27 , and the lower part of the third ejector pin 28 protrudes downward from the lower surface of the ejector plate set 25 . Specifically, a first blind hole 2511 is opened upwards on the lower surface of the upper ejector plate 251, and the bottom wall of the first blind hole 2511 is opened upwards to penetrate through the upper surface of the upper ejector plate 251. The diameter of the first blind hole 2511 is smaller than that of the first blind hole 2511. The first through hole 2512 of the lower ejector plate 252 is opened on the upper surface corresponding to the first blind hole 2511, and a second blind hole 2521 is opened on the upper surface, and a second blind hole 2521 is opened on the bottom wall of the second blind hole 2521. The diameter of the lower surface of the outlet plate 252 is smaller than the second through hole 2522 of the second blind hole 2521; the second thimble 27 has a cylindrical first base 271, and the upper surface of the first base 271 protrudes upwards with a diameter Smaller than the first needle body portion 272 of the first base portion 271, the third thimble 28 has a cylindrical second base portion 281, and the upper surface of the second base portion 281 protrudes upwards to provide a first needle body portion with a diameter smaller than the second base portion 281. Two needle body parts 282; the first blind hole 2511 and a corresponding second blind hole 2521 encircle a described movable groove, and the first base part 271 is accommodated in the movable groove up and down, and the first needle body part 272 passes through the first through hole 2512 and extends into the flow channel 232, the second base part 281 is moved up and down and accommodated in the movable groove, and the second needle part 282 passes through the second through hole 2522 to eject the plate from below The lower surface of 251 protrudes and abuts against the lower fixing plate 21 .

Please continue to refer to Fig. 1 to Fig. 4, when the utility model mold 100 is closed, the ejector plate group 25 is located at the lower part of the accommodation space 29, the first ejector pin 26 extends into the lower part of the second cavity 231, and the third ejector pin 28 The lower part of the second needle body part 282 abuts against the upper surface of the lower fixing plate 21, the second base part 281 of the third thimble 28 abuts against the first base part 271 of the second thimble 27, and the upper surface of the first base part 281 abuts against the upper surface of the lower fixing plate 21. On the bottom wall of the first blind hole 2511 , the upper portion of the first needle portion 272 extends into the flow channel 232 . The product 200 and the material head 201 are molded in the cavity and the runner 232 .

When opening the mold, the upper fixed plate 11 and the template 12 of the master mold 10 move upward and drive the core 13 of the master mold to move upward, and the product 200 and the material head 201 stay in the second cavity 231 and the runner 232 respectively; continue to open the mold , the ejector plate group 25 moves upwards and drives the first thimble 26 to move upwards together to push the formed product 200 against the second cavity 231 of the male mold core 23 and push it upwards for a certain distance. At this time, the product 200 and the material head 201 is disengaged, the second ejector pin 27 remains still, and the bottom wall of the second blind hole 2521 moves upwards to abut against the lower surface of the second base 281; then continue to open the mold, and the ejector plate group 25 continues to move upwards and drives the first The thimble 26 continues to move upward together to continue to eject the formed product 200 upwards. At the same time, the ejector plate group 25 drives the third thimble 28 to move upward, and the third thimble 28 pushes the second thimble 27 to move upward and the material head 201 Ejecting the runner 232 completes the mold opening.

To sum up, the mold 100 of the present utility model provides a movable groove between the upper ejector plate 251 and the lower ejector plate 252, and the second thimble 27 and the third thimble 28 are installed in the movable groove correspondingly. The product 200 and the material head 201 are ejected asynchronously, and the product 200 will not be damaged by the ejection of the material head 201 , ensuring the appearance and quality of the product 200 .

Claims (3)

1. A kind of mould, the product that is used for forming is to adopt the mode molding of latent glue, it is characterized in that: comprise female mold, the male mold that is arranged correspondingly with female mold; Described female mold comprises female mold core, and female mold core There is at least one first cavity; the male mold includes a lower fixing plate, a male template, a male mold core, two partition plates, an ejector plate group, a number of first thimbles, a number of second thimbles and a number of third thimbles. Ejector pin; the male mold core is installed on the male template, and at least one second cavity and a flow channel communicating with the second cavity are opened on the male mold core, and the male mold core and the female mold core are matched correspondingly, and the second type The cavity cooperates with the first cavity to form the cavity of the molded product; the two partition plates are fixed between the lower fixed plate and the male template and form a receiving space with the lower fixed plate and the male template; the ejector plate group can The upper and lower movable ones are installed in the storage space, and at least one movable groove is opened in the ejector plate group; the first thimbles are fixed on the ejector plate group and extend through the male template and the male mold core. In the mold cavity; the lower end of the second thimble is installed in the movable groove and can move up and down in the movable groove, and the upper part of the second thimble passes through the male template and the male mold core and extends into the runner; the third thimble The upper end is installed in the movable groove and can move up and down in the movable groove. The upper surface of the third thimble is against the lower surface of the second thimble, and the lower part of the third thimble protrudes downward from the lower surface of the ejector plate group. ;When the mold is closed, the lower part of the third thimble is against the upper surface of the lower fixed plate, and the product and material head are formed in the cavity and the flow channel; The group moves upwards and drives the first thimble to move upwards to push the product out of the second cavity of the male mold core and push it up for a certain distance. At this time, the product is separated from the material head, and the second thimble remains still; continue to open The ejector plate group continues to move upwards and drives the first thimble to continue to move upwards to continue to eject the product upwards. At the same time, the ejector plate group drives the third thimble to move upwards, and the third thimble pushes the second thimble to move upwards. And push the head out of the runner to complete the mold opening. 2. The mold according to claim 1, characterized in that: the ejector plate group comprises an upper ejector plate and a lower ejector plate fixed on the lower surface of the upper ejector plate, the upper ejector plate and the lower ejector plate The movable slots are opened between the outgoing boards. 3. The mold according to claim 2, characterized in that: a first blind hole is opened upward on the lower surface of the upper ejector plate, and a bottom wall of the first blind hole is opened upward to penetrate the upper surface of the upper ejector plate The diameter of the first through hole is smaller than that of the first blind hole; a second blind hole is opened on the upper surface of the lower ejector plate corresponding to the first blind hole, and a second blind hole is opened downward on the bottom wall of the second blind hole. The diameter of the lower surface of the lower ejector plate is smaller than the second through hole of the second blind hole; the second thimble has a cylindrical first base, and the upper surface of the first base protrudes upwards with a diameter smaller than the first base. The first needle body portion; the third thimble has a cylindrical second base portion, and a second needle body portion with a diameter smaller than the second base portion protrudes upward from the upper surface of the second base portion; the first needle body portion has a diameter smaller than that of the second base portion; The blind hole and a corresponding second blind hole form a movable groove, the first base part is moved up and down and accommodated in the upper part of the movable groove, and the first needle body passes through the first through hole and extends into the flow channel, so The second base part is moved up and down and accommodated in the lower part of the movable groove, and the second needle body part passes through the second through hole and can abut against the lower fixing plate.

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