CN115971445A - Ejection mechanism, die-casting die device and demolding method - Google Patents

Abstract

The invention relates to an ejection mechanism, a die-casting die device and a demolding method, wherein the ejection mechanism comprises a drag hook, wherein one end of the drag hook is provided with a strong pull block, and the other end of the drag hook is used for connecting a movable die of the die-casting die; one end of the reset block is used for being connected with the pressing plate of the fixed die, and the other end of the reset block is provided with a first convex block; the forced pulling seat is used for being connected with the ejector pin panel to be ejected, an elastic piece is arranged at one end of the forced pulling seat, the stretching direction of the elastic piece is perpendicular to the demolding direction, and a second protruding block matched with the first protruding block is arranged at the other end of the forced pulling seat. According to the ejection mechanism, the die opening force of the movable die is utilized when the die-casting die is demolded, and the ejector pin panel of the fixed die is driven to move and eject a product under the combined action of the original ejection spring, so that the problems of die sticking, deformation, cracking and the like of the product can be effectively avoided, the product in the die-casting die can be ejected conveniently and quickly, the demolding quality and the demolding efficiency are improved, and further, the production efficiency is improved.

Description

Ejection mechanism, die-casting mold device and demoulding method

technical field

The invention relates to the technical field of die-casting molds, in particular to an ejection mechanism, a die-casting mold device and a demoulding method.

Background technique

With the development of 5G communication technology, more and more related equipment and industries have been promoted and developed. For the cooling case of 5G base station, its structure is relatively complex and difficult to form. When demolding after die-casting, the cooling ribs have a small slope and deep cooling ribs, and the tightness of the cooling ribs is large, which leads to demoulding. It is relatively difficult, and it is easy to cause the product to stick to the mold, or even crack and deform, which is difficult to meet the production requirements and the production efficiency is low.

The existing mode of removing the fixed mold is to set the fixed mold thimble, the ejector plate, and the spring, utilize the reset lever to reset the spring, and act on the thimble plate by the spring when the mold is opened, thereby driving the thimble to eject the fixed mold. However, the ejection force of the existing demoulding mechanism is too small, and the spring cannot give enough force to the thimble plate. Therefore, it still cannot effectively solve the problem of difficulty in fixing and demoulding the cooling case of the 5G base station.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide an ejection mechanism that can effectively avoid problems such as product sticking, deformation, cracking, etc., and can conveniently and quickly remove the product in the die-casting mold The demoulding is carried out, which effectively improves the demoulding quality and demoulding efficiency, further improves the production efficiency, and saves manpower and material resources.

In order to solve the above technical problems, the present invention provides an ejector mechanism for ejecting the ejector panel of the fixed mold in the die-casting mold, including:

A pull hook, one end of the pull hook is provided with a strong pull block, and the other end of the pull hook is used to connect the movable mold of the die-casting mold;

A reset block, one end of the reset block is used to connect with the pressure plate of the fixed mold, and the other end is provided with a first bump;

Strong pulling seat, which is used to connect with the thimble panel to be ejected, one end of the strong pulling seat is provided with an elastic member, the stretching direction of the elastic member is perpendicular to the demoulding direction, and the other end of the strong pulling seat A second bump matched with the first bump is provided.

Preferably, one end of the drag hook is provided with a first groove, the reset block is located in the first groove, and one end of the reset block is provided with a connecting part, and the connecting part is connected with the pressing plate of the fixed mold , the first protruding block protrudes from the surface of the pull hook, the side of the first protruding block close to the connecting part has a first slope, and the direction of the first slope is in the same direction as the length direction of the reset block. The included angle is an acute angle.

Preferably, the surface of the second bump in contact with the first bump has a second slope, and the first slope and the second slope are parallel to each other.

Preferably, a guide block is further included, the guide block is installed on the draw hook, and the guide block is also connected with the fixed mold at the same time.

Preferably, the guide block includes a fixed plate, the end of the fixed plate is bent to the same side to form a first bent portion and a second bent portion, the fixed plate is connected with the pull hook, the first The bending part and the second bending part are connected with the template of the fixed mold.

Preferably, a pad is provided on the elastic member, the pad is located between the elastic member and the ejector panel to be ejected, and the elastic member includes a spring.

Preferably, a gasket is provided at the bottom of the strong seat.

The present invention also provides a die-casting mold device, including a die-casting mold and the ejection mechanism as described above, the die-casting mold includes a movable mold and a fixed mold, and the ejector mechanism is connected to the movable mold and the fixed mold at the same time, There are at least two ejection mechanisms, which are symmetrically arranged on both sides of the die-casting mold.

The present invention also provides a method for demoulding, which uses an elastic mechanism and the above-mentioned ejection mechanism to perform demoulding. The elastic mechanism includes a plurality of ejection springs, and the plurality of ejection springs are located on the fixed mold. Between the pressing plate and the thimble panel, when the fixed mold and the movable mold are in the mold closing state, the ejection spring is compressed, and when the movable mold moves along the ejection direction, the ejection spring exerts force on the ejector panel. The force in the same direction as the ejection direction moves the thimble panel downward, and at the same time, the ejector mechanism also applies a force in the same direction as the ejection direction to the thimble panel to make the thimble panel move downward. sports.

Preferably, when using the ejection mechanism for demoulding, the following steps are included:

Step S1: The strong pull block of the ejector mechanism is fastened to the strong pull seat, so that a set distance is maintained between the first bump and the second bump, and the fixed mold and the movable mold are in a mold-closed state at this time;

Step S2: The movable mold drives the pull hook to move along the demoulding direction, the strong pulling block drives the strong pulling seat to move, and the strong pulling seat drives the ejector panel to move along the demoulding direction, so that the second protrusion block contacts the first bump, the thimble panel continues to move along the demoulding direction, the reset block pushes the strong pull seat to move into the thimble panel, at this time the thimble panel stops moving, the movable mold and the fixed mold separate.

The above technical solution of the present invention has the following advantages compared with the prior art:

In the ejection mechanism, die-casting mold device and demoulding method of the present invention, a pull hook, a reset block and a strong pull seat are provided, and the strong pull seat is used to connect with the thimble panel to be ejected, and the pull hook and The movable mold of the die-casting mold is connected, so that the pull hook can move simultaneously with the movable mold, and drive the thimble panel to be ejected to move along the demoulding direction, so that the thimble panel is ejected. When the thimble panel continues to move downward, the reset block Push the strong pulling seat to move into the thimble panel, so that the strong pulling seat retracts into the thimble panel. At this time, the strong pulling seat will not be subjected to the force of the strong pulling block, the ejection of the thimble panel is completed, and the thimble panel stops moving. The ejection mechanism of the present invention utilizes the mold opening force of the movable mold when the die-casting mold is demolded, and under the joint action of the original ejection spring, drives the thimble panel of the fixed mold to move and eject the product, which can effectively Avoid problems such as product sticking, deformation, cracking, etc., conveniently and quickly eject the products in the die-casting mold, improve the demoulding quality and demoulding efficiency, further improve production efficiency, and save manpower and material resources.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

Fig. 1 is a schematic exploded view of the structure of the ejection mechanism of the preferred embodiment of the present invention.

Fig. 2 is a structural schematic diagram of the first viewing angle of the ejection mechanism of the best embodiment of the present invention.

Fig. 3 is a structural schematic diagram of the second viewing angle of the ejection mechanism of the preferred embodiment of the present invention.

Fig. 4 is a structural schematic diagram of the strong pull seat in the ejection mechanism of the best embodiment of the present invention.

Fig. 5 is a structural schematic diagram of the reset block in the ejection mechanism of the preferred embodiment of the present invention.

Fig. 6 is a structural schematic view of the ejection mechanism of the best embodiment of the present invention when it is assembled with the fixed mold and the movable mold of the die-casting mold.

Fig. 7 is a schematic exploded view of the structure of the fixed mold and the movable mold of the die-casting mold of the best embodiment of the present invention.

Fig. 8 is a structural schematic view of the assembly of the ejector mechanism and the fixed mold in the best embodiment of the present invention.

Explanation of reference numerals in the manual: 1-retractor, 11 strong pull block, 12-first groove, 13-third bump, 2-resetting block, 21-first bump, 211-first slope, 22-connection Department, 3-strong pull seat, 31-elastic piece, 311-pad block, 32-second bump, 321-second slope, 33-gasket, 4-fixed plate, 41-first bending part, 42 - the second bending part, 5 - fixed mold, 51 - pressing plate, 52 - thimble panel, 6 - moving mold, 7 - ejector spring.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

Example 1

Referring to Figures 1 to 8, the present invention discloses an ejection mechanism for ejecting the ejector panel of the fixed mold in the die-casting mold, including:

A drag hook 1, one end of the drag hook 1 is provided with a strong pull block 11, and the other end of the drag hook 1 is used to connect the movable mold of the die-casting mold;

A reset block 2, one end of the reset block 2 is used to be connected to the pressing plate of the fixed mold, and the other end is provided with a first bump 21;

Strong pull seat 3, which is used to be connected with the thimble panel to be ejected, the thimble panel to be ejected is provided with a depression, the strong pull seat 3 is placed in the depression, and the strong pull seat An elastic member 31 is provided at one end of the elastic member, and the stretching direction of the elastic member 31 is perpendicular to the demoulding direction, and a second protrusion 32 matched with the first protrusion 21 is provided at the other end of the tension seat.

It can be known from this that the ejection mechanism to be protected by the present invention is provided with a drag hook, a reset block and a strong pull seat, the strong pull seat is used to connect with the thimble panel to be ejected, and the drag hook is connected to the die-casting mold connected with the movable mold, so that the pull hook can move simultaneously with the movable mold, and drive the ejector panel to move along the demoulding direction, so that the ejector panel is ejected. When the ejector panel continues to move downward, the reset block pushes strongly The pulling seat moves into the thimble panel, so that the strong pulling seat retracts into the thimble panel. At this time, the strong pulling seat will not be subjected to the force of the strong pulling block, and the ejection of the thimble panel is completed, and the thimble panel stops moving. The ejection mechanism of the present invention utilizes the mold opening force of the movable mold when the die-casting mold is demolded, and under the joint action of the original ejection spring, drives the thimble panel of the fixed mold to move and eject the product, which can effectively Avoid problems such as product sticking, deformation, cracking, etc., conveniently and quickly eject the products in the die-casting mold, improve the demoulding quality and demoulding efficiency, further improve production efficiency, and save manpower and material resources.

Further, one end of the drag hook 1 is provided with a first groove 12, the reset block 2 is located in the first groove 12, and one end of the reset block 2 is provided with a connecting portion 22, and the connecting portion 22 is provided There is a through hole, the connecting part 22 is screwed to the pressure plate of the fixed mold, the first protruding block 21 protrudes from the surface of the pull hook 1, and a part of the first protruding block 21 close to the connecting part 22 There is a first slope 211 on one side, and the included angle between the direction of the first slope 211 and the length direction of the reset block 2 is an acute angle.

It should be noted that when the fixed mold and the movable mold are in the mold closing state, the strong drawing block 11 is tightly fastened to the strong drawing seat 3, but the strong drawing block 11 is never connected with the to-be-extruded The thimble faceplate is in contact.

Furthermore, the surface of the second protrusion 32 in contact with the first protrusion 21 has a second slope 321 , and the first slope 211 and the second slope 321 are parallel to each other. Therefore, when the first protrusion 21 and the second protrusion 32 are in contact with each other, the second protrusion 32 can move smoothly along the demoulding direction, and at the same time, the strong seat is held by the first protrusion 21 Push it into the thimble panel to be pushed out.

Specifically, the ejection mechanism further includes a guide block, the guide block is installed on the drag hook 1, and the guide block is also connected with the fixed mold.

The guide block includes a fixed plate 4, the end of the fixed plate 4 is bent to the same side to form a first bent portion 41 and a second bent portion 42, the fixed plate 4 is connected to the pull hook 1, so The first bending part 41 and the second bending part 42 are connected with the template of the fixed mold. During the demoulding process, the guide block can guide and reinforce the fixed mold.

In terms of details, the elastic member 31 is provided with a cushion block 311, and the cushion block 311 is located between the elastic member 31 and the thimble panel to be ejected. In this embodiment, the elastic member 31 adopts springs, and at least two springs are arranged on the strong pulling seat 3 .

And, the bottom of the strong pull seat 3 is provided with a gasket 33, and the gasket 33 can protect the thimble panel to be ejected and prevent the thimble panel to be ejected from being scratched. In addition, the frictional force between the forced seat 3 and the ejector panel to be ejected can also be increased.

The other end of the drag hook 1 is provided with a third protruding block 13, and a connection hole is provided on the third protruding block 13, and the third protruding block 13 is used for connecting with the movable mold of the die-casting mold.

Example 2

On the other hand, the present invention also discloses a die-casting mold device, including a die-casting mold and the ejection mechanism as described above, the die-casting mold includes a movable mold 6 and a fixed mold 5, and the ejection mechanism is connected to the The movable mold 6 and the fixed mold 5 are provided with at least two ejection mechanisms, which are symmetrically arranged on both sides of the die-casting mold.

Example 3

The present invention also discloses a demoulding method, using an elastic mechanism and the above-mentioned ejection mechanism for demoulding, the elastic mechanism includes a plurality of ejection springs 7, and the plurality of ejection springs are located at the fixed Between the pressing plate 51 and the thimble panel 52 of the mold, when the fixed mold 5 and the movable mold 6 are in the clamping state, the ejection spring 7 is compressed, and when the movable mold 6 moves along the ejection direction, the ejection spring 7 The spring 7 applies a force in the same direction as the demoulding direction to the thimble panel 52, so that the thimble panel 52 moves downward. The active force makes the thimble panel 52 move downward.

Further, when using the ejection mechanism for demoulding, the following steps are included:

Step S1: The strong pull block of the ejector mechanism is fastened to the strong pull seat, so that a set distance is maintained between the first bump 21 and the second bump 32. At this time, the fixed mold 5 and the movable mold 6 are in mold closing state;

Step S2: the movable mold 6 drives the drag hook 1 to move along the demoulding direction, the strong pulling block 11 drives the strong pulling seat 3 to move, and the strong pulling seat 3 drives the thimble panel 52 to move along the demoulding direction, Make the second bump 32 contact the first bump 21, the thimble panel 52 continues to move along the demoulding direction, the first bump 21 pushes the strong pull seat 3 to move into the thimble panel 52, At this moment, the thimble panel 52 stops moving, and the 6 movable molds are separated from the fixed mold 5 .

To sum up, the ejection mechanism to be protected by the present invention is provided with a drag hook, a reset block and a strong pull seat, the strong pull seat is used to connect with the thimble panel to be ejected, and the pull hook is connected with the die-casting mold. The movable mold is connected, so that the hook can move simultaneously with the movable mold, and drive the ejector panel to be ejected to move along the demoulding direction, so that the ejector panel is ejected. When the ejector panel continues to move downward, the reset block pushes and pulls The seat moves into the thimble panel, so that the strong pull seat is retracted into the thimble panel. At this time, the strong pull seat will not be subjected to the force of the strong pull block, and the ejection of the thimble panel is completed, and the thimble panel stops moving.

On the other hand, using the ejection mechanism described in the present invention, and using the mold opening force of the movable mold when the die-casting mold is demolded, and under the joint action of the ejector spring, the ejector pin panel of the fixed mold is driven to move and eject the product, It can effectively avoid problems such as product sticking, deformation, cracking, etc., conveniently and quickly eject the products in the die-casting mold, improve the quality and efficiency of demoulding, further improve production efficiency, and save manpower and material resources.

Apparently, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in various forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. The utility model provides an ejection mechanism for ejector pin plate to cover half in the die casting die is ejecting, its characterized in that: comprises the steps of (a) preparing a substrate,

one end of the draw hook is provided with a strong pull block, and the other end of the draw hook is used for connecting a movable die of the die-casting die;

one end of the reset block is used for being connected with the pressing plate of the fixed die, and the other end of the reset block is provided with a first bump;

the ejector pin panel ejection device comprises a forced pulling seat, wherein the forced pulling seat is used for being connected with an ejector pin panel to be ejected, an elastic piece is arranged at one end of the forced pulling seat, the stretching direction of the elastic piece is perpendicular to the demolding direction, and a second convex block matched with the first convex block is arranged at the other end of the forced pulling seat.

2. An ejection mechanism according to claim 1, wherein: the one end of drag hook is equipped with first recess, the reset block is located in the first recess, reset block one end is equipped with connecting portion, connecting portion with the clamp plate of cover half links to each other, first lug is outstanding the surface of drag hook, be close to on the first lug one side of connecting portion has first inclined plane, first inclined plane place direction with the length direction's of reset block contained angle is the acute angle.

3. An ejection mechanism according to claim 2, wherein: one side of the second bump, which is in contact with the first bump, is provided with a second inclined surface, and the first inclined surface is parallel to the second inclined surface.

4. An ejection mechanism according to claim 1, wherein: still include the guide block, the guide block is installed on the drag hook, the guide block still simultaneously with the cover half links to each other.

5. An ejection mechanism according to claim 4, wherein: the guide block includes the fixed plate, the tip of fixed plate forms first kink and second kink to same side bending, the fixed plate with the drag hook links to each other, first kink and second kink with the template of cover half links to each other.

6. An ejection mechanism according to claim 1, wherein: the elastic piece is provided with a cushion block, the cushion block is located between the elastic piece and the ejector pin panel to be ejected, and the elastic piece comprises a spring.

7. An ejection mechanism according to claim 1, wherein: and a gasket is arranged at the bottom of the strong pulling seat.

8. A die-casting die device is characterized by comprising a die-casting die and the ejection mechanisms according to claims 1 to 7, wherein the die-casting die comprises a movable die and a fixed die, the ejection mechanisms are connected with the movable die and the fixed die simultaneously, and at least two ejection mechanisms are symmetrically arranged on two sides of the die-casting die.

9. A mold releasing method, characterized in that the mold releasing is performed by using an elastic mechanism and the ejector mechanism of claims 1 to 7, the elastic mechanism comprises a plurality of ejector springs, the plurality of ejector springs are located between a pressing plate of the fixed mold and the ejector pin panel, when the fixed mold and the movable mold are in a mold closing state, the ejector springs are compressed, when the movable mold moves along a mold releasing direction, the ejector springs apply an acting force in the same direction as the mold releasing direction to the ejector pin panel to move the ejector pin panel downward, and simultaneously, the ejector mechanism also applies an acting force in the same direction as the mold releasing direction to the ejector pin panel to move the ejector pin panel downward.

10. The method of claim 9, wherein the ejection mechanism is used for ejection, and the method comprises the steps of:

step S1: a strong pull block of the ejection mechanism tightly buckles the strong pull seat to enable a set distance to be kept between the first bump and the second bump, and the fixed die and the movable die are in a die assembly state at the moment;

step S2: the movable mould drives the drag hook and moves along drawing of patterns direction, the strong piece drives the strong seat motion, the strong seat drives thimble panel moves along drawing of patterns direction, makes the second lug contact first lug, thimble panel continues to move along drawing of patterns direction, the piece that resets promotes in the strong seat motion is to thimble panel, thimble panel stop motion this moment, the movable mould separates with the cover half.

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