CN203650780U - Insert-type tilting pin withdrawing structure - Google Patents

Abstract

The utility model discloses an insert-type oblique pin exit structure, forming a product with barbs and ribs, the ribs are located in the direction of barb exit, the exit structure is set in a mold, and the mold has a male core. The withdrawing structure includes: an insert, which is fixedly arranged in the core of the male mold, one end of the insert has a rib forming part for forming the rib, and the other end has a stroke groove; an oblique pin has a movable end, and the The movable end is movably arranged in the stroke groove, and a barb forming part is extended on one side of the movable end, and the barb forming part is arranged outside the stroke groove. When the mold is opened, the movable end of the oblique pin moves in the stroke groove of the insert, and the barb forming part of the oblique pin gradually withdraws from the barb; at the same time, the oblique pin The top end of the barb forming part pushes the product until the rib is completely disengaged from the rib forming part; then the barb and the rib can be withdrawn, and the product can be taken out.

Description

Insert type oblique pin exit structure

【Technical field】

The utility model relates to an exit structure, in particular to an insert type oblique pin exit structure.

【Background technique】

There are barbs on many plastic products, and it is necessary to design a corresponding structure to withdraw them when using a mold for molding. Commonly used, for example, is an oblique pin structure.

Please refer to FIG. 1 , which is a schematic structural diagram of a product. As shown, the product 10 has barbs 11 and ribs 12 .

Please refer to FIG. 2 again. FIG. 2 is a schematic cross-sectional view of the product in FIG. 1 from another perspective. For this product 10, if an oblique pin is used to withdraw from the barb 11, there will be a rib 12 in the direction in which the oblique pin withdraws, so that it cannot be withdrawn.

In view of this, it is necessary to develop an insert type oblique pin withdrawal structure to solve the above problems.

【Content of invention】

Therefore, the purpose of this utility model is to provide an insert type oblique pin withdrawal structure, which solves the problem that products with barbs and ribs are located in the direction of barb withdrawal, and cannot be withdrawn by using the traditional oblique pin structure.

In order to achieve the above object, the utility model provides an insert-type oblique pin exit structure, forming a product with barbs and ribs, the ribs are located in the direction of barb exit, the exit structure is set in a mold, and the mold has Public model benevolence, the exit structure includes:

The insert is fixedly arranged in the male mold core, one end of the insert has a rib forming part for forming the rib, and the other end has a stroke groove;

The oblique pin has a movable end, the movable end is movably arranged in the stroke groove, and a barb forming part is extended on one side of the movable end, and the barb forming part is arranged in the stroke groove outside.

Optionally, there are four sets of insert-type oblique pin exit structures, which respectively form barbs and ribs around the product.

Optionally, the height of the stroke groove is greater than or equal to the sum of the height of the rib and the first safety margin.

Optionally, the first safety margin is 2 millimeters.

Optionally, when the mold is closed, the shortest distance between the barb forming portion and the rib is greater than or equal to the sum of the protruding height of the barb and the second safety margin.

Optionally, the second safety margin is 2 millimeters.

Compared with the prior art, using the insert-type oblique pin exit structure of the utility model, when the mold is opened, the movable end of the oblique pin moves in the stroke groove of the insert, and the oblique pin The barb forming part of the barb gradually withdraws from the barb; at the same time, the top end of the barb forming part of the oblique pin pushes the product until the rib is completely separated from the rib forming part; Withdrawal of the barbs and ribs, remove the product.

【Description of drawings】

FIG. 1 is a schematic structural diagram of a product.

FIG. 2 is a schematic cross-sectional structure diagram of another viewing angle of the product of FIG. 1 .

FIG. 3 is a structural schematic diagram of a preferred embodiment of the insert-type oblique pin withdrawal structure of the present invention.

Fig. 4 is a schematic view showing the combination of the insert and the oblique pin in Fig. 3 .

FIG. 5 is a schematic diagram of the exploded structure of FIG. 4 .

FIG. 6 is a schematic cross-sectional structure diagram of a mold-closing state of a preferred embodiment of the insert-type oblique pin withdrawal structure of the present invention.

FIG. 7 is a schematic cross-sectional structure diagram of a mold-opening state of a preferred embodiment of the insert-type oblique pin withdrawal structure of the present invention.

【Detailed ways】

Please refer to Fig. 1-Fig. 6 in combination. Fig. 3 is a structural schematic diagram of a preferred embodiment of the insert-type oblique pin withdrawal structure of the present utility model, and Fig. 4 is a schematic diagram of the combination of the insert and oblique pin in Fig. 3 , Fig. 5 is a schematic diagram showing the disassembled structure of Fig. 4, and Fig. 6 is a schematic cross-sectional structural diagram showing a mold-closing state of a preferred embodiment of the insert-type oblique pin withdrawal structure of the present invention.

In order to achieve the above purpose, the insert type oblique pin exit structure provided by the utility model forms a product 10 with a barb 11 and a rib 12, the rib 12 is located in the exit direction of the barb 11, and the exit structure is arranged in the mold , the mold has a male die core 20, the exit structure includes:

The insert 30 is fixedly arranged in the male mold core 20, one end of the insert 30 has a rib forming part 31 forming the rib 12, and the other end has a stroke groove 32;

The oblique pin 40 has a movable end 41, the movable end 41 is movably arranged in the stroke groove 32, and a barb forming portion 42 is extended on one side of the movable end 41, and the barb forming portion 42 is arranged outside the stroke groove 32 .

Wherein, the product 10 may have barbs 11 and ribs 12 around it, and the insert-type oblique pin withdrawal structure is correspondingly four groups, respectively forming the barbs 11 and ribs 12 around the product 10 .

Wherein, the height of the travel groove 32 is greater than or equal to the sum of the height of the rib 12 (the height of the rib 12 is, for example, 20 mm) and the first safety margin (the first safety margin is, for example, 2 mm). .

Wherein, when closing the mold, the shortest distance between the barb forming portion 42 and the rib 12 is greater than or equal to the protruding height of the barb 11 and the second safety margin (the second safety margin is for example is 2mm) and.

Please refer to FIG. 7 again. FIG. 7 is a schematic cross-sectional structure diagram of a mold-opening state of a preferred embodiment of the insert-type oblique pin withdrawal structure of the present invention.

Utilizing the insert-type oblique pin withdrawal structure of the present utility model, when the mold is opened, the movable end 41 of the oblique pin 40 moves in the stroke groove 32 of the insert 30, and the oblique pin 40 moves The barb forming portion 42 gradually withdraws from the barb 11; at the same time, the top end of the barb forming portion 42 of the oblique pin 40 pushes the product 10 until the rib 12 is completely disengaged from the rib forming portion 31 ; And then can achieve the withdrawal of the barb 11 and the rib 12, take out the product 10. It can be seen that this structure can achieve the exit problem of the product 10 with the barb 11 and the rib 12 (the rib 12 is located in the exit direction of the barb 11 ).

Claims (6)

1. An insert type oblique pin exit structure, forming a product with barbs and ribs, the ribs are located in the barb exit direction, the exit structure is set in a mold, and the mold has a male mold core, which is characterized in That is, the exit structure includes: The insert is fixedly arranged in the male mold core, one end of the insert has a rib forming part for forming the rib, and the other end has a stroke groove; The oblique pin has a movable end, the movable end is movably arranged in the stroke groove, and a barb forming part is extended on one side of the movable end, and the barb forming part is arranged in the stroke groove outside. 2. The insert-type oblique pin withdrawal structure according to claim 1, characterized in that, the insert-type oblique pin withdrawal structure is divided into four groups, respectively forming barbs and ribs around the product. 3. The insert-type oblique pin withdrawal structure according to claim 1 or 2, wherein the height of the stroke groove is greater than or equal to the sum of the height of the rib and the first safety margin. 4. The insert-type oblique pin exit structure according to claim 3, wherein the first safety margin is 2 mm. 5. The insert type oblique pin withdrawal structure according to claim 1 or 2, characterized in that, when the mold is closed, the shortest distance between the barb forming part and the rib is greater than or equal to the barb The sum of the protrusion height and the second safety margin. 6. The withdrawing structure of an insert type oblique pin according to claim 5, wherein the second safety margin is 2 millimeters.

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