CN114714564A

CN114714564A - Forming die

Info

Publication number: CN114714564A
Application number: CN202110060168.1A
Authority: CN
Inventors: 叶秀金; 罗玉龙
Original assignee: Compal Electronics Inc
Current assignee: Compal Electronics Inc
Priority date: 2021-01-06
Filing date: 2021-01-18
Publication date: 2022-07-08
Also published as: TW202227253A

Abstract

The application provides a forming die, including a first mold core, a second mold core, a moving part and an elastic component. The second mold core is arranged on one side of the first mold core and is opposite to the first mold core, wherein the second mold core is provided with an accommodating space, and the accommodating space is provided with a buffer distance. The movable piece is arranged in the accommodating space of the second mold core and can move in the accommodating space through the arrangement of the buffer distance. The elastic piece is arranged in the second mold core and propped against between the second mold core and the movable piece.

Description

Forming die

Technical Field

The present disclosure relates to a mold, and more particularly, to a forming mold.

Background

Fig. 1A is a perspective view of an iron piece embedding molding die, and fig. 1B is a sectional view of fig. 1A. Referring to fig. 1A and fig. 1B, the following situation often occurs due to the dimensional tolerance when the forming mold is used to perform insert injection molding on an iron member at present: first, the iron member 2 to be processed has no dimensional tolerance with the

cores

1a, 1b, and thus, there is no problem in insert molding. Secondly, the dimensional tolerance between the iron piece 2 to be processed and the

mold cores

1a and 1b is lower, and burrs are easy to be formed on a product after the iron piece is embedded and molded. Thirdly, the size between the iron piece 2 to be processed and the

mold cores

1a and 1b is limited, the

mold cores

1a and 1b are easily damaged slightly due to the collision between the iron piece and the

mold cores

1a and 1b when the mold is closed, and the

mold cores

1a and 1b can be used continuously under the condition that the damage of the

mold cores

1a and 1b is not found; the

mold cores

1a and 1b are used for a long time, and the product has burrs.

Since it is difficult to achieve complete accuracy in the dimensions of the iron piece 2 to be processed and the

cores

1a and 1b, burrs are often produced in the product, and the yield cannot be effectively improved. Alternatively, in order to improve the yield of the product, the

cores

1a and 1b need to be replaced frequently, which increases the cost of the molding die.

In order to improve the above problem, a conventional improvement is to provide a fixing member 3 in the coplanar region, and the fixing member 3 is used to prevent the

mold cores

1a and 1b from being directly damaged, so that the cost of directly replacing the

mold cores

1a and 1b can be reduced. However, this also often results in a product having a slight burr.

The slightly burred product can be manually deburred. However, this adds one more process and increases labor costs.

Disclosure of Invention

The technical problem that this application will be solved lies in providing a forming die that can promote the product yield.

The application provides a forming die includes first mold core, second mold core, moving part and elastic component. The second mold core is arranged on one side of the first mold core and is opposite to the first mold core, wherein the second mold core is provided with an accommodating space, and the accommodating space is provided with a buffer distance. The movable piece is arranged in the accommodating space of the second mold core and can move in the accommodating space through the arrangement of the buffer distance. The elastic piece is arranged in the second mold core and propped against between the second mold core and the movable piece.

In an embodiment of the application, the first mold core has a first surface, the second mold core has a second surface, and the second surface faces the first surface. In addition, the movable member has a third surface, and the third surface faces the first surface.

In an embodiment of the present application, when the forming mold is in the mold-opened state, the height of the third surface is higher than the height of the first surface, wherein the height of the third surface protruding from the first surface ranges from 0.05mm to 0.2 mm.

In an embodiment of the present application, when the forming mold is in the closed state, the height of the third surface is flush with or slightly lower than the height of the first surface.

In an embodiment of the application, the second mold core has a limiting portion to limit a moving stroke of the movable member in the accommodating space.

Based on the aforesaid, the moving part setting of forming die of this application is in the accommodation space of second mold core, wherein through the setting of buffer distance and elastic component for the moving part can move and be adapted to being close to or keeping away from of first mold core in the accommodation space. Therefore, the mold core can be prevented from being damaged by the iron piece, the mold core can maintain a good shape, and the yield of products is improved.

Other features and embodiments of the present application will be described in detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1A is a schematic perspective view of an iron member embedded in a forming mold;

FIG. 1B is a cross-sectional view of FIG. 1A;

FIG. 2A is a schematic perspective view of a workpiece to be processed being placed into a forming die;

FIG. 2B is a cross-sectional view of FIG. 2A;

FIG. 3A is a schematic view of a molding mold in an open state;

fig. 3B is a schematic view of the molding die in a closed state.

Description of the symbols

1a, 1 b: and (3) a mold core 2: the iron piece to be treated 3: fixing piece

10: forming the mold 11: first mold core 111: first surface

12: the second mold core 121: second surface 20: workpiece to be treated

122: the limiting portion 123: bottom wall 13: movable part

131: third surface 132: bottom surface 14: elastic piece

S: accommodating space L1: buffer distance

Detailed Description

The positional relationship described in the following embodiments includes: the top, bottom, left and right, unless otherwise indicated, are based on the orientation of the elements in the drawings.

Referring to fig. 2A and fig. 2B, fig. 2A is a schematic perspective view of a workpiece to be processed being placed into a forming mold, and fig. 2B is a cross-sectional view of fig. 2A.

The forming mold 10 of the present embodiment is used for insert injection molding of the workpiece 20 to be processed, wherein the workpiece 20 to be processed may be an iron piece, for example, but is not limited thereto.

The molding die 10 includes a first mold core 11, a second mold core 12, a movable member 13, and an elastic member 14.

The second mold core 12 is disposed on one side, for example, the lower side, of the first mold core 11, and the second mold core 12 is aligned with the first mold core 11. The first mold core 11 and the second mold core 12 can be moved toward or away from each other to perform injection molding. In other embodiments, the second mold core 12 and the first mold core 11 may be arranged in parallel in the horizontal direction, which may be determined according to the user's requirement.

The second mold core 12 of the present embodiment has an accommodating space S, wherein the accommodating space S has a buffer distance L1.

The movable member 13 is disposed in the accommodating space S, and because the accommodating space S has a buffer distance L1, the movable member 13 is movably disposed in the accommodating space S.

The elastic element 14 is disposed in the second mold core 12 and abuts against the space between the second mold core 12 and the movable element 13. The elastic member 14 of the present embodiment is a compression spring, which means that it is compressed after being stressed and stores elastic restoring force, but is not limited thereto.

The first mold core 11 has a first surface 111, the second mold core 12 has a second surface 121, and the movable member 13 has a third surface 131, wherein the second surface 121 and the third surface 131 face the first surface 111.

When the forming mold 10 is in an open state, the first mold core 11 and the second mold core 12 are separated from each other by a distance, wherein the distance between the first mold core 11 and the second mold core 12 is greater than the distance for taking out a finished product.

It should be noted that the elastic element 14 is disposed such that the movable element 13 is pressed by the elastic element 14, and a portion of the movable element 13 protrudes out of the second surface 121 of the second mold core 12.

Specifically, the second mold core 12 has a limiting portion 122 and a bottom wall 123, wherein the limiting portion 122 may be a top wall of the accommodating space S. The limiting portion 122 is used for interfering the movable element 13 abutted by the elastic element 14 to limit the moving stroke of the movable element 13 in the accommodating space S, so as to limit the height of the third surface 131 protruding the second surface 121.

In other words, the moving stroke of the movable element 13 in the accommodating space S is limited by the buffer distance L1 of the accommodating space S.

Incidentally, the height of the third surface 131 of the movable member 13 is higher than the height of the second surface 121. In the present embodiment, the height of the third surface 131 protruding from the second surface 121 ranges from 0.05mm to 0.2 mm.

Fig. 3A is a schematic view of the molding die in an open state. Referring to fig. 3A, to perform injection molding on a workpiece 20 to be processed, the workpiece 20 to be processed is placed in the molding die 10 in an open state, and a portion of the workpiece 20 to be processed is located in the movable member 13. At this time, the elastic element 14 abuts against the moving element 13 to abut against the limiting portion 122 of the accommodating space S, and the third surface 131 of the moving element 13 protrudes from the second surface 121 of the second mold core 12.

It should be noted that, the accommodating space S has a buffering distance L1, wherein the buffering distance L1 is a distance between the bottom surface 132 of the movable element 13 and the bottom wall 123 of the accommodating space S.

Fig. 3B is a schematic view of the molding die in a closed state. Referring to fig. 3A and 3B, in the step of forming the workpiece 20 to be processed, the first mold core 11 is closed toward the second mold core 12.

As the first mold core 11 gradually approaches the second mold core 12, the first surface 111 of the first mold core 11 first contacts the third surface 131 of the movable element 13, and the first mold core 11 presses the movable element 13 to move the movable element 13 downward in the accommodating space S, so that the bottom surface 132 of the movable element 13 gradually approaches the bottom wall 123 of the accommodating space S. And the elastic member 14 is compressively deformed and stores an elastic restoring force in accordance with the pressing of the first mold core 11 to the movable member 13.

The first mold core 11 is gradually brought closer to the second mold core 12 until the first surface 111 of the first mold core 11 contacts the second surface 121 of the second mold core 12. At this time, the molding die 10 is in a closed state.

When the forming mold 10 is in the mold closing state, the height of the third surface 131 of the movable element 13 is flush with or slightly lower than the height of the second surface 121, and the bottom surface 132 of the movable element 13 is closer to the bottom wall 123 of the accommodating space S than when the mold opening state is performed.

The workpiece 20 to be processed is injection molded in the closed state of the molding die 10.

In the forming mold 10 of the present application, since the movable member 13 moves downward in the accommodating space S along with the pressing of the first mold core 11, the workpiece 20 to be processed can be prevented from colliding with the first mold core 11 to damage the first mold core 11. In addition, it is also possible to avoid damage to the second mold core 12 by preventing the workpiece 20 to be processed from being displaced and thus colliding with the second mold core 12 due to contact of the first mold core 11 with the workpiece 20 to be processed. In other words, the damage of the mold core can be avoided, and the service life of the mold core is prolonged.

In addition, because the elastic element 14 is arranged to enable the movable element 13 to move in the accommodating space S along with the movement of the first mold core 11, the requirement for the precision of the size of each component can be reduced.

In summary, in the forming mold of the present application, the buffering distance is disposed in the accommodating space of the second mold core, and the elastic member is used in cooperation, so that the movable member can move in the accommodating space to be adapted to the approach or the distance of the first mold core. Therefore, the die core can be prevented from being damaged due to collision with a workpiece to be processed, the die core can maintain a good shape, the service life of the die core is prolonged, and the cost of part loss is reduced.

Furthermore, because the movable piece can move in the accommodating space along with the movement of the first mold core, the requirement on the precision of the size of each component can be reduced.

In addition, the good condition of the mold core is maintained, and the yield of products can be further improved.

The above-described embodiments and/or implementations are only for illustrating the preferred embodiments and/or implementations of the technology of the present application, and are not intended to limit the implementations of the technology of the present application in any way, and those skilled in the art can make modifications or changes to other equivalent embodiments without departing from the scope of the technology disclosed in the present application, but should be construed as technology or implementations substantially the same as the present application.

Claims

1. A molding die, comprising:

a first mold core;

the second mold core is arranged on one side of the first mold core and is aligned to the first mold core, the second mold core is provided with an accommodating space, and the accommodating space has a buffer distance;

the movable piece is arranged in the accommodating space of the second mold core and can move in the accommodating space through the arrangement of the buffer distance; and

and the elastic piece is arranged in the second mold core and is abutted against the space between the second mold core and the movable piece.

2. The molding die of claim 1, wherein the first core has a first surface, the second core has a second surface, and the second surface faces the first surface.

3. The molding die of claim 2, wherein the movable member has a third surface, and the third surface faces the first surface.

4. The molding die of claim 3, wherein the third surface is higher than the first surface in an open mold state.

5. The molding die of claim 4, wherein the height of the third surface protruding from the first surface ranges from 0.05mm to 0.2 mm.

6. The forming die of claim 3, wherein the height of the third surface is flush with or slightly lower than the height of the first surface in a closed state.

7. The molding die of claim 1, wherein the second mold core has a limiting portion for limiting a moving stroke of the movable member in the accommodating space.