CN220576487U - Secondary ejection die structure based on lever principle - Google Patents

Abstract

The utility model discloses a secondary ejection die structure based on a lever principle, which belongs to the technical field of dies, wherein an acceleration ejection rod is fixed on an upper ejection plate above a lower fixed plate and moves linearly up and down, and the acceleration ejection rod is linked with one end of a rotating plate through a pin; the pin fixing blocks of the rotating plate are arranged on two sides of the rotating plate and are fixed on the upper ejector plate, and the middle part of the rotating plate is linked with the pin fixing blocks of the rotating plate through pins to serve as a fulcrum; the other end of the rotating plate is connected with the ejector rod fixing block through a pin, and the ejector rod fixing block moves up and down through the guide of the fixing block guide plate sleeved on the outer side of the ejector rod fixing block. The double-speed ejection demoulding device has the advantages that the double-speed ejection demoulding can be realized, the production efficiency and the product quality are greatly improved, the injection molding production cost is also reduced, meanwhile, the double-speed ejection demoulding device is simple in structure, high in reliability and strong in adaptability, and can be used for demoulding various complex products.

Description

Secondary ejection die structure based on lever principle

Technical Field

The utility model relates to the technical field of dies, in particular to a secondary ejection die structure based on a lever principle.

Background

At present, the electrical products are usually of a once-ejected die structure, so that the problem of demolding of the products cannot be solved when the products are ejected once for some complex products, the products are not easy to take out because of being stuck in the die, the products are required to be manually taken out, the products can be damaged by pulling, automatic production cannot be realized by using a mechanical arm, and the molding period is influenced.

The utility model patent CN218700972U relates to a seesaw twice ejection structure, which ensures that a product part on a first ejector rod is slowly ejected, a product part on a second ejector rod is accelerated to be ejected, and different ejection speeds can be matched with different positions of a demolding product. However, the structure needs two ejector rods, and the reliability of the structure is not high, and particularly the effectiveness of one ejection can be influenced.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a novel secondary ejection die structure which comprises an acceleration ejection rod, a rotating plate pin fixing block, a fixing block guide plate, a pin 1, a pin 2, a pin 3, a lower ejection plate, an upper ejection plate, a lower fixing plate, a push plate, a rear template and a return rod, wherein the acceleration ejection rod is fixed on the upper ejection plate above the lower fixing plate and moves linearly up and down,

the accelerating ejection rod is connected with one end of the rotating plate through a pin 1, and power is input;

the pin fixing blocks of the rotating plate are arranged on two sides of the rotating plate and are fixed on the upper ejector plate, and the middle part of the rotating plate is linked with the pin fixing blocks of the rotating plate through pins 2 and serves as a fulcrum;

the other end of the rotating plate is connected with the ejector rod fixing block through a pin 3, and the ejector rod fixing block is guided to move up and down through a fixing block guide plate sleeved on the outer side of the ejector rod fixing block, so that power is output.

Preferably, the lower ejector plate and the upper ejector plate are fixed together by screws.

Preferably, the rear mold plate is above the accelerating ejector rod.

Preferably, the ejector rod is fixed on the ejector rod fixing block.

Preferably, the return rod is arranged on the lower ejector plate and the upper ejector plate, and the push plate is fixed on the return rod.

Preferably, the distance from the pin 1 to the pin 2 is half the distance from the pin 3 to the pin 2.

Preferably, the ejector rod fixing block is in clearance fit with the fixing block guide plate.

Compared with the prior art, the mold structure can realize secondary accelerated ejection and demolding, greatly improve the production efficiency and the product quality, reduce the injection molding production cost, and simultaneously has the advantages of simple structure, improved reliability and strong adaptability, and can be used for demolding various complex products.

Drawings

FIG. 1 is an overall schematic of a mold of the present utility model;

fig. 2 is a schematic view of the lever member.

Wherein 1 is an accelerating ejector rod; 2 is a rotating plate; 3 is a rotating plate pin fixing block; 4 is a push rod fixing block; 5 is a fixed block guide plate; 6 is a push rod; 7 is pin 1;8 is pin 2;9 is pin 3;10 is a lower ejector plate; 11 is an upper ejector plate; 12 is a lower fixing plate; 13 is a push plate; 14 is a rear form; 15 is a return lever; 16 is the product.

Detailed Description

The technical scheme of the utility model is further explained below with reference to the attached drawings.

As shown in fig. 1-2, the utility model provides a secondary ejection die structure of a lever principle, which comprises an acceleration ejection rod 1, a rotating plate 2, a rotating plate pin fixing block 3, an ejector rod fixing block 4, a fixing block guide plate 5, an ejector rod 6, a pin 7, a pin 8, a pin 9, a lower ejection plate 10, an upper ejection plate 11, a lower fixing plate 12, a push plate 13, a rear template 14 and a return rod 15.

The mold pin 7 fixes the ejector rod 1 on the rotating plate 2, the rotating plate pin fixing block 3 is fixed on the rotating plate 2 by the pin 8, the ejector rod fixing block 4 is fixed on the rotating plate 2 by the pin 9, the rotating plate 2 is fixed on the upper ejector plate 11 by the screw on the rotating plate pin fixing block 3, and the upper and lower locating plates 10 and 11 are fixed together by the screw.

After the die is opened, the ejector rod of the injection molding machine pushes the upper ejector plate 10 and the lower ejector plate 11 to move upwards, the accelerating ejector rod 1 is fixed on the upper ejector plate 10 and the lower ejector plate 11 to do up-down linear motion, the ejector plate 10 and the ejector plate 11 move upwards and drive the accelerating ejector mechanism to move upwards integrally to a certain distance, the accelerating ejector rod 1 can touch the rear die plate 14, and then the one-time ejection motion is ended. Then, the upper and lower ejector plates 10, 11 continue to move upward, and at this time, the acceleration ejector rod 1 moves downward relative to the ejector plates 10, 11, the acceleration ejector rod 1 is linked with the rotary plate 2 through the pin 7, the rotary plate 2 is linked with the rotary plate pin fixing block 3 through the pin 8, and the rotary plate pin fixing block 3 is fixed on the upper and lower ejector plates 10, 11. The acceleration ejector rod 1 moves downwards and simultaneously drives the rotating plate 2 to rotate anticlockwise according to the view direction of fig. 1. The pivot is the joint of the rotating plate 2 and the ejector rod fixing block 4 through the pin 9. The fixed block guide plate 5 is fixed on the upper ejector plate 10 by a screw, and a hole is needed to be made in the middle of the fixed block guide plate 5, so that the ejector rod fixed block 4 can just pass through, and the fixed block guide plate 5 is in clearance fit, the ejector rod fixed block 4 can only move up and down due to the guide of the fixed block guide plate 5, the ejector rod 6 is fixed on the ejector rod fixed block 4, and the rotating plate 2 drives the ejector rod fixed block 4 to move upwards while rotating anticlockwise.

In the preferred embodiment, the distance of the upward movement of the ejector rod fixing block 4 is greater than the distance of the downward movement of the accelerating ejector rod 1, the function of secondary acceleration is realized, the acceleration movement of the ejector rod fixing block can be realized through controlling the size of X and Y in fig. 1, the distance from the pin 1 to the pin 2 is X, the distance from the pin 3 to the pin 2 is Y, preferably, the distance Y is set to be twice X, the approaching twice of the movement distance of the accelerating ejector rod 1 of the ejector rod fixing block 4 can be realized, the function of secondary acceleration ejection of the ejector rod 6 is realized, and finally the ejector rod 6 ejects the product 16 out of the die, and the whole ejection action is finished.

When the die is assembled, the push plate 13 returns under the action of the spring and the front die, the push plate 13 and the return rod 15 are fixed together, and the return rod 15 is arranged on the upper ejector plate 10 and the lower ejector plate 11, so that the push plate 13 returns together with the upper ejector plate 10 and the lower ejector plate 11 until the upper ejector plate 10 and the lower ejector plate 11 return to a set distance, the accelerating ejector rod 1 also touches the lower fixing plate 12, and the secondary accelerating ejection system returns reversely.

The aim of realizing secondary accelerated ejection of electrical products is finally achieved through precise matching and calculation of the whole secondary ejection system and products.

Claims (7)

1. The utility model provides a lever principle's mould structure that ejects twice, its characterized in that includes accelerating ejector rod (1), rotor plate (2), rotor plate pin fixed block (3), ejector pin fixed block (4), fixed block deflector (5), ejector pin (6), pin 1 (7), pin 2 (8), pin 3 (9), lower ejector plate (10), upper ejector plate (11), lower fixed plate (12), push pedal (13), posterior template (14), return pole (15), accelerating ejector rod (1) is fixed on upper ejector plate (11) in lower fixed plate (12) top, do upper and lower rectilinear motion,

the accelerating ejection rod (1) is connected with one end of the rotating plate (2) through a pin 1 (7);

the rotary plate pin fixing blocks (3) are arranged on two sides of the rotary plate (2) and are fixed on the upper ejector plate (11), and the middle part of the rotary plate (2) is linked with the rotary plate pin fixing blocks (3) through pins (8) to serve as fulcrums;

the other end of the rotating plate (2) is linked with the ejector rod fixing block (4) through a pin 3 (9), and the ejector rod fixing block (4) moves up and down in a guiding way through a fixing block guide plate (5) sleeved on the outer side of the ejector rod fixing block.

2. The mold structure for the secondary ejection of the lever principle according to claim 1, characterized in that the lower ejector plate (10) and the upper ejector plate (11) are fixed together with screws.

3. The lever principle double ejection die structure according to claim 1, characterized in that the rear die plate (14) is above the accelerating ejector rod (1).

4. The lever principle double ejection die structure according to claim 1, wherein the ejector rod (6) is fixed on the ejector rod fixing block (4).

5. The lever principle double ejection die structure according to claim 1, wherein the return rod (15) is mounted on the lower ejector plate (10) and the upper ejector plate (11), and the push plate (13) is fixed on the return rod (15).

6. The lever principle double ejection die structure according to claim 1, characterized in that the distance from the pin 1 (7) to the pin 2 (8) is twice the distance from the pin 3 (9) to the pin 2 (8).

7. The lever principle double ejection die structure according to claim 1, wherein the ejector rod fixing block (4) is in clearance fit with the fixing block guide plate (5).