CN221790838U - Mould convenient to drawing of patterns - Google Patents

Abstract

The utility model relates to the technical field of dies, in particular to a die convenient for demoulding, wherein a die body is arranged in the die body, a limit roller is fixedly arranged on the upper end surface of the die body, a fixed ejector rack is fixedly arranged on the upper end surface of the limit roller, an ejector die moving rack capable of moving up and down is arranged on the upper side of the die body, a low die cavity with an upward opening is arranged on the upper end surface of the die body, an ejector pin cavity is arranged in the die body, and an ejector pin rack capable of moving up and down is arranged in the ejector pin cavity.

Description

A mold that is easy to demould

Technical Field

The utility model relates to the technical field of molds, in particular to a mold which is easy to demould.

Background Art

Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts.

When using die-casting molds to produce products, it takes a long time to demould because the products formed by stamping are tightly attached to the mold groove.

Utility Model Content

The utility model aims to provide a mold which is easy to demould, so as to overcome the above-mentioned defects in the prior art.

According to the utility model, a mold that is easy to demould comprises a mold body, a limiting roller is fixedly provided on the upper end surface of the mold body, and a fixed top frame is fixedly provided on the upper end surface of the limiting roller;

A top mold movable frame that can move up and down is arranged on the upper side of the mold body, a low mold cavity opening upward is arranged on the upper end surface of the mold body, a spring pin cavity is arranged in the mold body, and a spring pin frame that can move up and down is arranged in the spring pin cavity.

In some embodiments, a top mold is fixedly provided on the lower end surface of the top mold moving frame, and the top mold and the low mold cavity are manufactured in cooperation with each other.

In some embodiments, four ejector pins are fixedly disposed on the upper end surface of the ejector pin rack, and the upper end surfaces of the ejector pins extend into the low mold cavity.

In some embodiments, four outer pressing rods are fixedly provided on the upper end surface of the elastic needle rack, and the upper ends of the outer pressing rods extend to the upper end surface of the mold body.

In some embodiments, four elastic mold springs are fixedly connected between the upper end surface of the elastic needle frame and the upper wall of the elastic needle cavity.

In some embodiments, four pressing moving blocks are fixedly provided on the lower end surface of the top mold moving frame, and the lower end surface of the pressing moving block is made in cooperation with the pressing outer rod.

In some embodiments, a telescopic cylinder is fixedly provided inside the fixed top frame, and the lower end surface of the telescopic cylinder is fixedly connected to the upper end surface of the top mold movable frame.

Compared with the prior art, the advantages of the utility model are:

1. The utility model uses the top die moving frame and the top die to slowly move upward, so that the pressing moving block and the pressing outer rod are no longer in contact, and the pressing outer rod, the elastic needle frame and the ejector pin are elastically ejected upward under the contraction of the elastic die spring, so that the workpiece is ejected from the low die cavity. The utility model uses multiple ejectors to eject at the same time. Since the ejector pins have the same ejection time, the workpiece can be ejected quickly and smoothly, and the problem of workpiece deformation caused by the difference in ejection time will not occur.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a front view of the utility model;

Fig. 2 is a top view of the utility model;

Fig. 3 is a left side view of the utility model;

FIG4 is a bottom view of the utility model;

FIG5 is a schematic diagram of the overall structure of a mold that is easy to demould according to the present invention.

In the figure:

11. Mold body; 12. Control panel; 13. Limit roller; 14. Fixed top frame; 15. Telescopic cylinder; 16. Top mold moving frame; 17. Low mold cavity; 18. Press outer rod; 19. Ejector; 20. Top mold; 21. Elastic needle frame; 22. Elastic needle cavity; 23. Elastic mold spring; 24. Pressure stabilizing spring; 25. Pressing moving block.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example

Referring to FIG. 1 to FIG. 5 , the first embodiment of the utility model provides an embodiment of a mold that is easy to demould, including a mold body 11, a limiting roller 13 is fixedly provided on the upper end surface of the mold body 11, and a fixed top frame 14 is fixedly provided on the upper end surface of the limiting roller 13;

A top mold moving frame 16 that can move up and down is provided on the upper side of the mold body 11, a low mold cavity 17 that opens upward is provided on the upper end surface of the mold body 11, a spring pin cavity 22 is provided in the mold body 11, and a spring pin frame 21 that can move up and down is provided in the spring pin cavity 22.

A top mold 20 is fixedly disposed on the lower end surface of the top mold moving frame 16 , and the top mold 20 and the low mold cavity 17 are manufactured in cooperation with each other.

Four ejector pins 19 are fixedly disposed on the upper end surface of the ejector pin holder 21 , and the upper end surfaces of the ejector pins 19 extend into the lower mold cavity 17 .

Four outer pressing rods 18 are fixedly disposed on the upper end surface of the needle holder 21 , and the upper ends of the outer pressing rods 18 extend to the upper end surface of the mold body 11 .

Four elastic mold springs 23 are fixedly connected between the upper end surface of the elastic needle frame 21 and the upper wall of the elastic needle cavity 22 .

Four pressing moving blocks 25 are fixedly provided on the lower end surface of the top mold moving frame 16 , and the lower end surface of the pressing moving block 25 is made in cooperation with the pressing outer rod 18 .

A telescopic cylinder 15 is fixedly disposed inside the fixed top frame 14 , and the lower end surface of the telescopic cylinder 15 is fixedly connected to the upper end surface of the top mold moving frame 16 .

Specific workflow:

When performing the die pressing work, the firmware can be placed in the low die cavity 17, and the telescopic cylinder 15 is started to move the top die moving frame 16 downward. Through the top die 20 and the low die cavity 17, the mold can complete the die pressing work. During the die pressing, the pressing moving block 25 will press the pressing outer rod 18 downward, causing the spring needle frame 21 to move downward, so that the ejector pin 19 moves downward to between the upper wall of the spring needle cavity 22 and the lower wall of the low die cavity 17, so that the workpiece in the low die cavity 17 can be pressed and formed smoothly. After pressing and forming, with the reverse movement of the telescopic cylinder 15 At the start, the top die moving frame 16 and the top die 20 slowly move upward, and the workpiece will adhere to the lower wall of the low die cavity 17, so that the pressing moving block 25 and the pressing outer rod 18 are no longer in contact, and the pressing outer rod 18, the elastic needle frame 21 and the ejector pin 19 are elastically elasticated upward under the contraction of the elastic die spring 23, and the workpiece is ejected from the low die cavity 17. The utility model ejects multiple ejector pins 19 at the same time, and since the ejection time of the ejector pins 19 is the same, the workpiece can be ejected quickly and smoothly, and the problem of workpiece deformation caused by the difference in ejection time will not occur.

The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims (7)

1. The utility model provides a mould convenient to drawing of patterns, includes mould body (11), its characterized in that: a limiting roller (13) is fixedly arranged on the upper end surface of the die body (11), and a fixed top frame (14) is fixedly arranged on the upper end surface of the limiting roller (13);

The upper side of the die body (11) is provided with a top die moving frame (16) capable of moving up and down, the upper end face of the die body (11) is provided with a low die cavity (17) with an upward opening, a needle flicking cavity (22) is arranged in the die body (11), and a needle flicking frame (21) capable of moving up and down is arranged in the needle flicking cavity (22).

2. A mold for facilitating demolding as claimed in claim 1, wherein: the lower end face of the top die moving frame (16) is fixedly provided with a top die (20), and the top die (20) and the low die cavity (17) are mutually matched for manufacturing.

3. A mold for facilitating demolding as claimed in claim 1, wherein: four ejector pins (19) are fixedly arranged on the upper end face of the ejector pin frame (21), and the upper end face of each ejector pin (19) extends into the lower die cavity (17).

4. A mold for facilitating demolding as claimed in claim 1, wherein: the upper end face of the needle flicking frame (21) is fixedly provided with four pressing outer rods (18), and the upper ends of the pressing outer rods (18) extend to the upper end face of the die body (11).

5. A mold for facilitating demolding as claimed in claim 1, wherein: four elastic die springs (23) are fixedly connected between the upper end face of the elastic needle frame (21) and the upper wall of the elastic needle cavity (22).

6. A mold for facilitating demolding as defined in claim 4, wherein: the lower end face of the top die moving frame (16) is fixedly provided with four pressing moving blocks (25), and the lower end face of each pressing moving block (25) is matched with the pressing outer rod (18).

7. A mold for facilitating demolding as claimed in claim 1, wherein: the fixed top frame (14) is internally and fixedly provided with a telescopic cylinder (15), and the lower end surface of the telescopic cylinder (15) is fixedly connected with the upper end surface of the top die moving frame (16).