CN212021350U

CN212021350U - Back-off mold structure

Info

Publication number: CN212021350U
Application number: CN202020571980.1U
Authority: CN
Inventors: 温德生
Original assignee: Xiamen Fengjin Mold Industry Co ltd
Current assignee: Xiamen Fengjin Mold Industry Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-27
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a back-off mould structure, it can be including bullet piece, spring and last mould benevolence, it has into the die cavity to go up mould benevolence, the bullet piece passes through the spring can install with reseing in going up mould benevolence, bullet piece upper end and cope match-plate pattern butt make bullet piece lower extreme can insert when the compound die become in the die cavity with become the back-off structure of die cavity cooperation shaping product, can be in when the die sinking leave under the spring action become the die cavity. The utility model discloses simple structure, low in manufacturing cost to the assembly is simple, and work efficiency is high.

Description

Back-off mold structure

Technical Field

The utility model relates to a mould field specifically relates to a back-off mould structure.

Background

Fig. 5 shows a product 100 having an inverted structure 101, for which many slide blocks are generally required to be combined to form, which makes the entire mold structure complicated, the manufacturing cost is high, and the mold assembly is time-consuming and inefficient.

Disclosure of Invention

The utility model aims at providing a back-off mould structure to solve above-mentioned problem. Therefore, the utility model discloses a specific technical scheme as follows:

the utility model provides a back-off mould structure, it can be including bullet piece, spring and last mould benevolence, it has the die cavity to go up mould benevolence, the bullet piece passes through the spring can install with reseing in going up mould benevolence, bullet piece upper end and cope match-plate pattern butt make bullet piece lower extreme can insert when the compound die in the die cavity with the back-off structure of die cavity cooperation shaping product can leave under the spring action when the die sinking the die cavity.

Further, the upper core includes a first half and a second half, and the spring block is mounted in the first half.

Further, the bullet piece includes vertical part and horizontal part, the horizontal part sets up between the upper and lower end of vertical part, is equipped with first blind hole in its lower surface, be equipped with in the first half and be used for the installation the mounting hole of bullet piece, be equipped with the second blind hole in the mounting hole, spring upper end butt in first blind hole, the lower extreme butt in the second blind hole.

Further, a portion of the vertical portion above the lateral portion is shorter than a portion below the lateral portion.

Further, a portion of the vertical portion above the lateral portion is thicker than a portion below the lateral portion.

The utility model adopts the above technical scheme, the beneficial effect who has is: the utility model discloses simple structure, low in manufacturing cost to the assembly is simple, and work efficiency is high.

Drawings

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Fig. 1 is a perspective view of a back-off mold structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of the reverse mold structure shown in FIG. 1;

FIG. 3 is a perspective view of a first half of an upper core of the undercut die structure shown in FIG. 2;

FIG. 4 is a perspective view of a spring block of the reverse mold structure shown in FIG. 2;

fig. 5 is a perspective view of a product to be molded.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 5, an inverted mold structure may include an upper core 1, an elastic block 2 and a spring 3, wherein the upper core 1 has a molding cavity 13, and the shape of the molding cavity 13 corresponds to a product 100 to be molded. The spring block 2 is installed in the upper die core 1 in a resettable manner through the spring 3, and the upper end of the spring block 2 is abutted against an upper die plate (not shown), so that the lower end of the spring block 2 can be inserted into the forming cavity 13 to be matched with the forming cavity 13 to form the inverted buckle structure 101 of the product 100 when the die is closed, and can leave the forming cavity 13 under the action of the spring 3 when the die is opened. The back-off die is simple in structure, low in processing cost correspondingly, simple in assembly and high in working efficiency.

In this embodiment, the number of the forming cavities 13, the spring blocks 2 and the springs 3 is 2, so that two products 100 can be formed simultaneously, and the production efficiency is improved.

For the convenience of processing, the upper mold core 1 is composed of a first half 11 and a second half 12. Wherein the block 2 is mounted in the first half 11. Specifically, the bullet block 2 includes a vertical portion 21 and a lateral portion 22, the lateral portion 22 is disposed between the upper and lower ends of the vertical portion 21, and a first blind hole 23 is provided in the lower surface thereof; the first half 11 is provided with a mounting hole 111 for mounting the block 2, which corresponds to the shape of the block 2 and opens into the molding cavity 13. Wherein, the mounting hole 111 is provided with a second blind hole 112 therein. When the spring 3 is installed, the upper end of the spring 3 abuts against the first blind hole 23, and the lower end of the spring 3 abuts against the second blind hole 112, so that the spring 3 is prevented from falling out.

In the present embodiment, the portion of the vertical portion 21 above the lateral portion 22 is shorter than the portion below the lateral portion 22. The ratio of the length of the upper and lower portions may typically be in the range 1:2 to 2: 3, or less. Further, the portion of the vertical portion 21 above the lateral portion 22 is thicker than the portion below the lateral portion 22. Preferably, the thickness ratio of the upper and lower portions may be 2: 1.

The working process of the present invention is briefly described as follows: when the die is closed, the elastic block 2 is pressed down by the upper die plate, the lower end of the elastic block is inserted into the forming cavity 13 to be matched with the forming cavity 13 to form the inverted buckle structure 101 of the product 100, and the spring 3 is compressed at the moment; when the mold is opened, the lower end of the elastic block 2 leaves from the molding cavity 13 (namely from the inverted buckle structure 101) under the restoring force action of the spring 3, and then the core is pulled through the corresponding slide block, so that the upper mold core 1 is separated from the product, and the demolding is realized.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a back-off mould structure, its characterized in that, includes bullet piece, spring and last mould benevolence, it has the one-tenth die cavity to go up the mould benevolence, the bullet piece passes through the spring can install with reseing in going up the mould benevolence, bullet piece upper end and cope match-plate pattern butt make bullet piece lower extreme can insert when the compound die in the one-tenth die cavity with the back-off structure of one-tenth die cavity cooperation shaping product can leave under the spring action when the die sinking one-tenth die cavity.

2. The negative tooling structure of claim 1, wherein the upper core includes a first half and a second half, the spring block being mounted in the first half.

3. The structure of claim 2, wherein said spring block includes a vertical portion and a lateral portion, said lateral portion is disposed between upper and lower ends of said vertical portion, a first blind hole is disposed in a lower surface of said lateral portion, a mounting hole for mounting said spring block is disposed in said first half, a second blind hole is disposed in said mounting hole, an upper end of said spring abuts against said first blind hole, and a lower end of said spring abuts against said second blind hole.

4. The negative mold structure of claim 3, wherein the vertical portion is shorter above the lateral portion than below the lateral portion.

5. The inverted mold structure according to claim 3 or 4, wherein a portion of the vertical portion above the lateral portion is thicker than a portion below the lateral portion.