CN103934931B - Slide block drawing-out mechanism - Google Patents

Abstract

A slider withdrawal mechanism, which includes: a slider insert, one end of which is a molded product, and the other end is provided with a receiving groove, and the slider insert is also provided with an oblique pin groove; a slider body, which is connected to the slider Block-to-sub connection, the slider body is provided with a horizontal hole and an inclined hole with an inclined angle to the vertical direction; an inclined guide post, one end of which is fixed in the mother template, and the other end is set in the inclined hole to move The slider body moves; the slider bundle block, one end of which is fixed in the mother template, and the slider bundle block is provided with a vertical surface and an inclined surface at an inclined angle with the vertical direction; the oblique pin pull pin, its One end is set in the accommodating groove, the other end passes through the horizontal hole and conflicts with the vertical surface; one end of the oblique pin is provided with an undercut of the protruding post molding product, the other end passes through the oblique pin groove and Stretching into the receiving groove to be flexibly connected with the oblique pin pulling pin. The sliding block withdrawing mechanism of the present invention can form products with undercuts in the withdrawing direction of the sliding block.

Description

slider exit mechanism

【Technical field】

The invention relates to a mold mechanism, in particular to a sliding block withdrawal mechanism of a mold.

【Background technique】

The plastic parts of the product will be molded using plastic molds, such as plastic parts such as housings of electronic products. Due to the popularity of electronic products, the improvement of plastic molds has also become a subject of extensive research.

In the production of plastic products, the slider is usually used to form the product structure, and then the inclined guide column moves the slider body when the mold is opened, and the slider body is connected with the slider to drive the slider to exit. product structure. However, if the product has one or more undercuts in the exit direction of the slider, that is, the direction of the undercut is inconsistent with the exit direction of the slider, the product is not easy to form, and if the product is modified, it will not meet the needs of customers.

In view of this, it is necessary to develop a slider withdrawal mechanism capable of forming products with undercuts in the direction of slider withdrawal.

【Content of invention】

Therefore, an object of the present invention is to provide a slider ejection mechanism capable of forming products with undercuts in the slider ejection direction.

In order to achieve the above object, the sliding block withdrawal mechanism of the present invention is applied in a mold. The mold has a female template, a male template, a female mold core and a male mold core, and the mold opening direction is the vertical direction. Agencies include:

Slider insert, one end of which is a molded product, the other end is provided with a receiving groove, and the slide block insert is also provided with an oblique pin groove;

The slider body is connected with the slider inlet, and the slider body is provided with a horizontal hole and an inclined hole with an oblique angle to the vertical direction;

An inclined guide post, one end of which is fixed in the mother template, and the other end is arranged in the inclined hole to move the slider body;

A slider bundle block, one end of which is fixed in the mother template, the slider bundle block is provided with a vertical surface and an inclined surface at an inclined angle with the vertical direction;

An oblique pin puller, one end of which is arranged in the accommodating groove, and the other end passes through the horizontal hole and conflicts with the vertical surface;

One end of the oblique pin is provided with an undercut of the protruding post molding product, and the other end passes through the oblique pin groove and extends into the receiving groove to be movably connected with the oblique pin pulling pin.

In particular, a first elastic element is provided between the slider body and the male core to assist the movement of the slider body.

In particular, a slider wear block is provided between the slider body and the slider bundle to prevent the slider body from being worn.

In particular, the horizontal hole has two hole sections with diameters D1 and D2 respectively, and D1<D2.

In particular, the outer edge of the oblique pin pulling needle is covered with a stopper and a second elastic element, the stopper is set in the hole section with a diameter of D2, and the elastic element is set in the hole section with a diameter of D2 Between the side wall and the block.

In particular, the first elastic element and the second elastic element are springs.

In particular, one end of the oblique pin in the receiving groove is provided with a sliding groove, and correspondingly, one end of the oblique pin in the accommodating groove is provided with a projection, and the projection slides in the sliding groove to The oblique pin is movably connected with the oblique pin pulling pin.

In particular, the slider insert and the slider body are connected by screws.

Compared with the prior art, in the slider exit mechanism of the present invention, when the slider body drives the slider to withdraw, the oblique pin pull pin remains stationary in the horizontal direction because it collides with the vertical surface. Under the action of the groove, the oblique pin slides out of the undercut of the product, thereby forming a product with an undercut in the exit direction of the slider.

【Description of drawings】

FIG. 1 is a three-dimensional schematic view of the sliding block withdrawal mechanism of the present invention.

FIG. 2 is an exploded schematic view of the sliding block withdrawal mechanism of the present invention.

Fig. 3 is a schematic cross-sectional view showing the mold clamping state of the sliding block withdrawing mechanism of the present invention.

FIG. 4 is a schematic cross-sectional view of the first mold-opening state of the sliding block withdrawal mechanism of the present invention.

FIG. 5 is a schematic cross-sectional view of the second mold-opening state of the sliding block withdrawal mechanism of the present invention.

【detailed description】

Please refer to Fig. 1, Fig. 2 and Fig. 3, which respectively depict a three-dimensional schematic diagram of the slider withdrawal mechanism of the present invention, an exploded schematic diagram of the slider withdrawal mechanism of the present invention, and a cross-sectional schematic diagram of the mold closing state of the slider withdrawal mechanism of the present invention .

In this embodiment, the sliding block ejection mechanism of the present invention is applied in a mold. The mold has a female template 10, a male template 20, a female mold core and a male mold core 21, and the mold opening direction is the vertical direction. The slider exit mechanism consists of:

The slider insert 100 has a molded product 30 at one end and a receiving groove 110 at the other end, and an oblique pin groove 120 is also provided on the slider insert 100;

The slider body 200 is connected to the slider inlet 100 by screws, and the slider body 200 is provided with a horizontal hole 220 and an inclined hole 210 at an oblique angle to the vertical direction;

An inclined guide column 300, one end of which is fixed in the mother template 10, and the other end is arranged in the inclined hole 210 to move the slider body 200;

The slider beam block 400, one end of which is fixed in the mother template 10, the slider beam block 400 is provided with a vertical surface 410 in the vertical direction, and the slider beam block 400 is also provided with a an inclined surface 420 at an inclined angle;

An oblique pin puller 500, one end of which is arranged in the receiving groove 110, and the other end passes through the horizontal hole 220 and conflicts with the vertical surface 410;

One end of the oblique pin 600 is provided with the undercut 31 of the protruding column 610 of the molded product 30 , and the other end passes through the oblique pin groove 120 and extends into the receiving groove 110 to be movably connected with the oblique pin puller 500 .

Wherein, a first elastic element 230 is further provided between the slider body 200 and the male mold core 21 to assist the movement of the slider body 200, and the first elastic element 230 is a spring in this embodiment.

Wherein, a slider wear-resistant block 240 is provided between the slider body 200 and the slider bundle 400 to prevent the slider body 200 from being worn.

Wherein, the horizontal hole 220 has two hole sections with diameters D1 and D2 respectively, and D1<D2, and the outer edge of the oblique pin pulling needle 500 is provided with a stopper 510 and a second elastic member 520, the stopper 510 is arranged in the hole section with the diameter D2, and the second elastic element 520 is arranged between the side wall of the hole section with the diameter D2 and the stopper 510. In this embodiment, the second elastic element 520 is a spring .

Wherein, one end of the oblique pin puller 500 disposed in the accommodation groove 110 is provided with a sliding groove 530, and correspondingly, one end of the oblique pin 600 disposed in the accommodation groove 110 is provided with a protrusion 620, and the protrusion 620 slides on the In the chute 530, the oblique pin 600 is flexibly connected with the oblique pin puller 500.

Please refer to FIG. 4 , which shows a schematic cross-sectional view of the first mold-opening state of the sliding block withdrawal mechanism of the present invention. After the mold is opened, the male template 20 is separated from the female template 10, and at the same time, under the action of the inclined guide post 300, the slider body 200 is inclined to withdraw along the inclined surface 420 of the slider bundle block 400, that is, the slider body The movement of 200 is decomposed into horizontal rightward (direction indicated by the arrow) movement and vertical downward movement. In the horizontal direction, the slider body 200 drives the slider entry 100 to exit the structure of the product 30 horizontally to the right. After the mold is opened, the oblique pin puller 500 continues to touch the vertical surface 410, so that the oblique pin puller 500 and the oblique pin 600 remain motionless in the horizontal direction, but because the slider insert 100 will exit the product horizontally to the right 30 , under the action of the oblique pin groove 120 provided on the slider insert 100 , the oblique pin 600 is forced to move upward along the slide groove 530 until it exits the undercut 31 of the product 30 .

Please refer to FIG. 5 , which shows a schematic cross-sectional view of the second mold-opening state of the sliding block withdrawal mechanism of the present invention. The mold continues to open the mold, the male template 20 continues to be separated from the female template 10, the slider body 200 drives the slider insert 100 to exit, when the oblique pin pulling pin 500 is separated from the vertical surface 410, the second elastic element 520 pulls the oblique pin pin 500 bounces off, and drives the oblique pin 600 to exit to the right, completing the whole core-pulling action.

To sum up, in the slider withdrawal mechanism of the present invention, when the slider body 200 drives the slider insert 100 to withdraw horizontally to the right, the oblique pin pull pin 500 collides with the vertical surface 410 and remains stationary in the horizontal direction. , under the action of the oblique pin groove 120, the oblique pin 600 slides out of the undercut 31 of the product 30, thereby forming a product 30 with an undercut 31 in the direction of slider withdrawal, which solves the problem that the product 30 is not easy to form.

Claims (9)

1. A slide block withdrawal mechanism is applied in a mould. The mold has a female template, a male template, a female die core and a male die core, and it is characterized in that, taking the mold opening direction as the vertical direction, the slide block withdrawal mechanism include: Slider insert, one end of which is a molded product, the other end is provided with a receiving groove, and the slide block insert is also provided with an oblique pin groove; The slider body is connected with the slider inlet, and the slider body is provided with a horizontal hole and an inclined hole with an oblique angle to the vertical direction; An inclined guide post, one end of which is fixed in the mother template, and the other end is arranged in the inclined hole to move the slider body; A slider bundle block, one end of which is fixed in the mother formwork, and the slider bundle block is provided with a vertical surface and an inclined surface at an inclined angle with the vertical direction; An oblique pin puller, one end of which is arranged in the accommodating groove, and the other end passes through the horizontal hole and conflicts with the vertical surface; One end of the oblique pin is provided with an undercut of the protruding post molding product, and the other end passes through the oblique pin groove and extends into the receiving groove to be movably connected with the oblique pin pulling pin. 2 . The slider withdrawing mechanism according to claim 1 , wherein a first elastic element is provided between the slider body and the male die to assist the movement of the slider body. 3 . 3. The sliding block withdrawal mechanism according to claim 2, wherein the first elastic element is a spring. 4 . The slider withdrawal mechanism according to claim 1 , wherein a slider wear-resistant block is provided between the slider body and the slider bundle to prevent the slider body from being worn. 5 . The sliding block withdrawal mechanism according to claim 1 , wherein the horizontal hole has two hole sections with diameters D1 and D2 respectively, and D1 < D2 . 6. The slider withdrawing mechanism according to claim 5, characterized in that, the outer edge of the oblique pin pulling needle is covered with a stopper and a second elastic element, and the stopper is set in the hole section with a diameter of D2 Among them, the elastic element is arranged between the side wall of the hole segment with a diameter of D2 and the stopper. 7. The slider withdrawal mechanism according to claim 6, wherein the second elastic element is a spring. 8. The slide block withdrawing mechanism according to claim 1, characterized in that, one end of the oblique pin pull pin disposed in the accommodation groove is provided with a chute, and correspondingly, one end of the oblique pin disposed in the accommodation groove is provided with a protrusion block, and the protruding block slides in the chute to movably connect the oblique pin with the oblique pin pulling pin. 9. The slider withdrawal mechanism according to claim 1, characterized in that, the slider insert and the slider body are connected by screws.