CN219543906U - Ejection structure and injection molding mechanism - Google Patents

Abstract

The utility model discloses an ejection structure and an injection molding mechanism, and relates to the technical field of injection molding, and the technical scheme is that the ejection structure comprises a needle plate group and a bearing mechanism serving as a thimble group; the ejector block is fixedly arranged on the needle plate group and positioned at one side of the ejector pin group; the sliding block is arranged above the needle plate group, is provided with a guide hole and is in sliding connection with the ejector block through the guide hole; the whole ejector block is a rod body, the center line of the rod body is vertical to the plate surface of the needle plate group, and the number of the ejector blocks corresponds to the number of the sliding blocks. The ejector has the beneficial effects that the ejector drives the cooperation of the straight ejector block, the sliding block and the ejector pin during ejection. When the straight jacking block is upwards ejected, the inclined surface on the straight jacking block drives the sliding block to separate from the product back-off, and the product can be lifted out in the mold opening direction, so that the product is completely separated. The scheme can reduce the mold and processing cost, shorten the injection molding period of the mold and improve the production efficiency.

Description

Ejection structure and injection molding mechanism

Technical Field

The utility model relates to the technical field of injection molding, in particular to an ejection structure and an injection molding mechanism.

Background

With the development of society and the continuous improvement of mold technology, resources are continuously reduced. Under the condition of ensuring the quality of products, reducing the use amount of raw materials and improving the automation of the die are the development direction of the die technology.

The inverted buckle product with large declining angle of the general product needs to be driven by an oil cylinder or an inclined roof with a guide rod. The two drives occupy larger rear mould space and have poor running process stability. The small-size mould mass production equipment can not satisfy, increases the mould cost, increases production cycle, influences production efficiency. If the oil cylinder drives the sliding block to return incompletely, the sliding block is damaged.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an injection ejection structure, which solves the problem that a slide block is damaged due to untimely return caused by large back-off slope angle of a small die.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an ejection structure comprises a needle plate group and a carrier mechanism, wherein the carrier mechanism is used as a thimble group;

the ejector block is fixedly arranged on the needle plate group and positioned at one side of the ejector pin group;

the sliding block is arranged above the needle plate group, is provided with a guide hole and is in sliding connection with the ejector block through the guide hole;

the whole ejector block is a rod body, the center line of the rod body is vertical to the plate surface of the needle plate group, and the number of the ejector blocks corresponds to the number of the sliding blocks; the top block comprises a top plate and a bottom plate,

the straight rod part is a vertical rod body and is fixedly connected with the needle plate group;

the inclined rod part is arranged at the upper end of the straight rod part and is inclined upwards relative to the straight rod part;

the guide holes are through holes corresponding to the top blocks.

Preferably, the guide hole is a through hole formed in the slider block, the guide hole is in a right-angle trapezoid shape, the top surface of the guide hole is one end with a small area, and the top surface corresponds to the cross section of the straight rod part; the inclined plane corresponds to the rod body inclination angle of the inclined rod part.

Preferably, the method further comprises the steps of,

the guide block is sleeved on the outer side of the straight rod part and is in sliding connection with the straight rod part; the guide block is positioned above the needle plate group and connected with the template.

Preferably, guide plates are symmetrically and fixedly arranged on two sides of the sliding block, and the guide plates are horizontally arranged strip-shaped bodies.

An injection molding mechanism, comprising a main body,

the lower side of the top plate is fixedly connected with the fixed template;

the bottom plate is positioned below the top plate, and the upper side of the bottom plate is provided with a movable template; the device also comprises an ejection structure as described above, and the ejection structure is arranged between the bottom plate and the movable template.

Preferably, the needle plate group comprises

An upper needle plate fixedly connected with the ejector block and the ejector pin;

and the lower needle plate is positioned between the upper needle plate and the bottom plate.

Preferably, the method further comprises the steps of,

the die leg group comprises a first die leg and a second die leg which are respectively positioned at one side of the needle plate group.

Preferably, the guide block is arranged inside the movable mould plate and is fixedly connected with the movable mould plate.

Preferably, a horizontal chute is arranged on the movable template, and the sliding block is horizontally and slidably connected with the movable template through a guide plate and the chute.

Compared with the prior art, the method has the following beneficial effects: according to the scheme, the cooperation action of the straight ejector block, the sliding block and the ejector pin is driven during ejection, so that the plastic part is ejected upwards while the sliding block is ensured to move, and the ejection action and the sliding block are synchronous in the movement direction of 90 degrees. When the straight jacking block is upwards ejected, the inclined surface on the straight jacking block drives the sliding block to separate from the product back-off, and the product can be lifted out in the mold opening direction, so that the product is completely separated. The scheme can reduce the mold and processing cost, shorten the injection molding period of the mold and improve the production efficiency.

Drawings

FIG. 1 is a schematic illustration of an ejection structure according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an ejector structure according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing a mold closing state according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating an ejection state according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the overall structure of an injection molding mechanism according to an embodiment of the present utility model;

fig. 6 is a schematic view of an internal structure of an injection molding mechanism according to an embodiment of the present utility model.

In the figure:

100. a product; 1. a top plate; 2. a stationary mold plate; 3. a movable template; 4. a first die leg; 5. a bottom plate; 6. a second die leg; 7. an upper needle plate; 8. a lower needle plate; 9. a slide block; 91. a guide hole; 92. a guide plate; 10. a top block; 101. a straight rod part; 102. an inclined rod part; 11. a guide block; 12. and (5) a thimble.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides the following technical solutions:

an ejection structure comprises a needle plate group used as a bearing mechanism of a thimble group 12; the ejector block 10 is fixedly arranged on the needle plate group, and the ejector block 10 is positioned on one side of the ejector pin group 12; a sliding block 9 is arranged above the needle plate group, a guide hole 91 is formed in the sliding block 9, and the sliding block 9 is in sliding connection with the ejector block 10 through the guide hole 91; the whole ejector block 10 is a rod body, the center line of the rod body is vertical to the plate surface of the needle plate group, and the number of the ejector blocks 10 corresponds to the number of the sliding blocks 9; the ejector block 10 specifically comprises a straight rod part 101 and an inclined rod part 102, wherein the straight rod part 101 is a vertical rod body, and the lower end of the straight rod part is fixedly connected with the needle plate group; the inclined rod part 102 is arranged at the upper end of the straight rod part 101 and is inclined upwards relative to the straight rod part 101; the guide hole 91 is a through hole corresponding to the top block 10.

By combining the top block 10 with a specific shape with the sliding block 9, the inclined rod part 102 and the straight rod part 101 pass through the sliding block 9 during the upward movement of the top block 10, so that the sliding block 9 translates.

On the basis of the embodiment, the guide hole 91 is a through hole formed on the block body of the sliding block 9, the guide hole 91 is in a right-angle trapezoid shape, the top surface of the guide hole 91 is one end with a small area, and the end corresponds to the cross section of the straight rod part 101; the inclined surface corresponds to the rod body inclination angle of the inclined rod portion 102. Guide plates 92 are symmetrically and fixedly arranged on two sides of the sliding block 9, and the guide plates 92 are horizontally arranged strip-shaped bodies. By combining the two-sided guide structure of the guide plate 92 with the guide hole 91, it is ensured that the slider 9 moves horizontally with respect to the ejection direction in use.

On the basis of the embodiment, the outer side of the straight rod part 101 is sleeved with the guide block 11, and the guide hole 11 is in sliding connection with the straight rod part 101; the guide block 11 is positioned above the needle plate group and connected with the template. The guide block 11 is used as an external connection structure and is connected with an external structure when the ejection structure is arranged in the scheme, so that the limiting and protecting effects on the movement of the ejector block 10 are achieved.

On the basis of the above embodiment, referring to fig. 5 and 6, the present embodiment proposes an injection molding mechanism including a top plate 1 and a bottom plate 5. The lower side of the top plate 1 is fixedly connected with a fixed template 2; the bottom plate 5 is positioned below the top plate 1, and the upper side of the bottom plate is provided with a movable template 3; the ejector structure as before is provided between the bottom plate 5 and the movable die plate 3. The needle plate group comprises an upper needle plate 7 and a lower needle plate 8, and an ejector block 10 and an ejector pin 12 are fixedly connected to the upper needle plate 7; the lower needle plate 8 is located between the upper needle plate 7 and the bottom plate 5. The outside of faller group sets up the mould foot group, and the mould foot group is including the first mould foot 4 and the second mould foot 6 that are located faller group one side respectively.

Through this scheme, the upper needle plate 7 motion when combining the mould ejecting drives slider 9 translation through the upward movement of kicking block 10. Thereby driving the slide block 9 to separate from the product back-off, and taking out the product in the mold opening direction, so that the product is completely separated. Since the slide block 9 is moved by the ejection movement of the upper needle plate 7, the problem of damage to the product or the slide block due to the asynchronous movement of the slide block 9 can be prevented.

On the basis of the above embodiment, the guide block 11 is provided inside the movable die plate 3 and fixedly connected with the movable die plate 3. A horizontal chute is arranged on the movable template 3, and the sliding block 9 is horizontally and slidably connected with the movable template 3 through a guide plate 92 and the chute. The vertical movement of the top block 10 is ensured by the limit of the top block 10 in the vertical direction by the guide block 11. The sliding block 9 is ensured to move in the horizontal direction by means of the sliding groove and the guide plate 92. By combining the structures of the top block 10 and the guide hole 91, the horizontal displacement of the slider 9 can be achieved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. An ejection structure, characterized by comprising

The needle plate group is used as a bearing mechanism of the thimble group;

the ejector block (10) is fixedly arranged on the needle plate group and positioned at one side of the ejector pin group;

the sliding block (9) is arranged above the needle plate group, is provided with a guide hole (91) and is in sliding connection with the ejector block (10) through the guide hole (91);

the whole ejector blocks (10) are rod bodies, the central line of the rod bodies is perpendicular to the plate surface of the needle plate group, and the number of the ejector blocks (10) corresponds to the number of the sliding blocks (9); the top block (10) comprises a top plate,

the straight rod part (101) is a vertical rod body and is fixedly connected with the needle plate group;

the inclined rod part (102) is arranged at the upper end of the straight rod part (101) and is inclined upwards relative to the straight rod part (101);

the guide holes (91) are through holes corresponding to the top blocks (10).

2. The ejection structure according to claim 1, wherein the guide hole (91) is a through hole formed in a block body of the slider (9), the guide hole (91) is in a right-angle trapezoid shape, and a top surface of the guide hole (91) is a small-area end corresponding to a cross section of the straight rod part (101); the inclined plane corresponds to the rod body inclination angle of the inclined rod part (102).

3. The ejection structure of claim 1, further comprising,

the guide block (11) is sleeved on the outer side of the straight rod part (101) and is in sliding connection with the straight rod part (101); the guide block (11) is positioned above the needle plate group and connected with the template.

4. The ejection structure according to claim 1, wherein guide plates (92) are symmetrically and fixedly arranged on two sides of the sliding block (9), and the guide plates (92) are horizontally arranged strip-shaped bodies.

5. An injection molding mechanism, characterized by comprising,

the lower side of the top plate (1) is fixedly connected with the fixed template (2);

a bottom plate (5) positioned below the top plate (1), and a movable template (3) is arranged on the upper side of the bottom plate; also included is a method of manufacturing a semiconductor device,

the ejection structure according to any one of claims 1 to 4, which is arranged between the base plate (5) and the movable die plate (3).

6. The injection molding mechanism of claim 5, wherein said needle plate set comprises

An upper needle plate (7) fixedly connected with the ejector block (10) and the ejector pin (12);

and the lower needle plate (8) is positioned between the upper needle plate (7) and the bottom plate (5).

7. The injection molding mechanism of claim 5, further comprising,

the die leg group comprises a first die leg (4) and a second die leg (6) which are respectively positioned at one side of the needle plate group.

8. Injection mechanism according to claim 5, characterized in that the guide block (11) is arranged inside the moving platen (3) and is fixedly connected with the moving platen (3).

9. Injection mechanism according to claim 5, characterized in that the movable mould plate (3) is provided with a horizontal chute, and the slide block (9) is horizontally and slidably connected with the movable mould plate (3) through a guide plate (92) and the chute.