CN110978426A

CN110978426A - Ejecting mechanism in slider

Info

Publication number: CN110978426A
Application number: CN201911372018.3A
Authority: CN
Inventors: 蔡小杰
Original assignee: Moldfactory Taicang Co ltd
Current assignee: Moldfactory Taicang Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-04-10

Abstract

The invention discloses a sliding block inner ejection mechanism which comprises a front die core, a rear die core, an inclined guide post, a sliding block, an ejector block sliding seat, an ejector block and an ejector rod, wherein a notch for placing the ejector block is formed in the rear die core, the ejector block is connected with an ejector pin on an ejector plate, the ejector block is driven by the ejector pin to vertically move, the ejector block sliding seat is horizontally and slidably arranged on the ejector block, the sliding block is slidably arranged on the rear die core, a submarine gate and a through hole for arranging the inclined guide post are formed in the sliding block, a guide hole communicated with and penetrating through the submarine gate is formed in the sliding block, the ejector rod is slidably arranged in the guide hole, one end of the ejector rod is fixedly connected with the ejector block sliding seat, the inclined guide post is arranged on the. According to the invention, the ejector block is in sliding fit with the ejector block sliding seat, so that the ejector pin moves synchronously, and the automatic disconnection and automatic ejection of the submarine gate are realized; simple structure, design benefit has improved die sinking efficiency. Through setting up the frustum of a pyramid shape notch of falling four corners, make things convenient for the kicking block to reset.

Description

Ejecting mechanism in slider

Technical Field

The invention relates to the field of injection molds, in particular to an inner ejection mechanism of a sliding block.

Background

In the field of injection molding, some products need to use a submarine gate due to special structures, but the material in the submarine gate is difficult to take out, so that a mechanism capable of automatically ejecting the material handle during mold opening is urgently needed.

Disclosure of Invention

Aiming at overcoming the defects in the prior art, the invention mainly aims to overcome the defects in the prior art and discloses a sliding block inner ejection mechanism which comprises a front die core, a rear die core, an inclined guide post, a sliding block, an ejection block sliding seat, an ejection block and an ejector rod, wherein a notch for placing the ejection block is formed in the rear die core, the ejector block is connected with an ejector pin on the ejector plate, the ejector pin is used for driving the ejector block to vertically move, the ejector block sliding seat is horizontally arranged on the ejector block in a sliding manner, the sliding block is arranged on the rear die core in a sliding manner, the sliding block is provided with a submarine gate and a through hole for arranging the inclined guide post, and a guide hole communicated with the submarine gate and penetrated through, the ejector rod is arranged in the guide hole in a sliding way, and one end of the inclined guide post is fixedly connected with the ejector block sliding seat, the inclined guide post is arranged on the front die core, and the inclined guide post is used for driving the sliding block to horizontally move.

The driving rod is arranged on the top block sliding seat, and a guide groove for limiting and guiding the driving rod is formed in the corresponding position of the sliding block.

Furthermore, the two driving rods are symmetrically arranged on two sides of the ejector rod respectively.

Further, the diameter of the driving rod is larger than that of the ejector rod.

Further, the side edges of the notch are inclined from top to bottom and from outside to the middle.

The invention has the following beneficial effects:

according to the invention, the ejector block is in sliding fit with the ejector block sliding seat, so that the ejector pin moves synchronously, and the automatic disconnection and automatic ejection of the submarine gate are realized; simple structure, design benefit has improved die sinking efficiency. Through setting up the frustum of a pyramid shape notch of falling four corners, make things convenient for the kicking block to reset.

Drawings

FIG. 1 is a schematic structural diagram of an ejecting mechanism in a slider according to the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a schematic view of the internal structure of FIG. 2;

FIG. 4 is a schematic view of a partial structure of a slider;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic view of the structure of the ejector mechanism in cooperation with the product;

the reference numbers are as follows:

1. the mold comprises a front mold core, 2 a rear mold core, 3 an inclined guide post, 4 a slide block, 5 an ejector block sliding seat, 6 an ejector block, 7 an ejector rod, 8 an ejector plate, 9 an ejector pin, 10 a material handle, 11 a driving rod, 12 a product, 21 a notch, 41 a submarine gate, 42 a through hole, 43 and a guide hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An inner ejection mechanism of a slide block is shown in figures 1-6 and comprises a front mold core 1, a rear mold core 2, an inclined guide post 3, a slide block 4, an ejector block sliding seat 5, an ejector block 6 and an ejector rod 7, wherein a notch 21 for placing the ejector block 6 is arranged on the rear mold core 2, the ejector block 6 is arranged in the notch 21, a through hole allowing an ejector pin 9 on an ejector pin plate 8 to pass through is arranged at the bottom of the notch 21, and the ejector pin 9 passes through the through hole and is connected with the bottom of the ejector block 6; the ejector block sliding seat 5 horizontally slides and is arranged on the ejector block 6, the sliding block 4 slides and is arranged on the rear die core 2, the sliding block 4 is provided with a submarine gate 41 and a through hole 42 for arranging the inclined guide post 3, the guiding hole 43 which is communicated with the submarine gate 41 and penetrates is arranged, the ejector rod 7 slides and is arranged in the guiding hole 43, one end of the ejector rod is fixedly connected with the ejector block sliding seat 5, and the inclined guide post 3 is arranged on the front die core 1. When the mold is opened, the front mold core 1 drives the inclined guide pillar 3 to move upwards, so as to drive the slide block 4 to move horizontally and simultaneously drive the ejector block sliding seat 5 to move horizontally synchronously, in the moving process, the connecting point of the submarine gate 41 and the product 12 is broken, and then the ejector plate 8 is driven by the injection molding machine to move upwards, so that the ejector 9 pushes the ejector block 6 to move upwards, and then the ejector rod 7 ejects the material handle 10 out of the submarine gate 41.

In one embodiment, as shown in fig. 1 to 6, the device further comprises a driving rod 11, wherein the driving rod 11 is disposed on the top block sliding seat 5, and a guiding groove for limiting and guiding the driving rod 11 is formed at a corresponding position of the sliding block 4. Preferably, the diameter of the drive rod 11 is larger than the diameter of the carrier rod 7. Through the arrangement of the driving rod 11, the ejector block sliding seat 5 is driven to horizontally move when the sliding block 4 horizontally moves, so that the driving rod 11 bears the thrust of the horizontal movement, and the load on the ejector rod 7 is further reduced; the service life of the ejector rod 7 is prolonged; in addition, when the top block 6 moves vertically, the top block sliding seat 5 is guided to move vertically through the guide groove, and the stability of the top block sliding seat 5 during vertical movement is further improved. In a preferred embodiment, two driving rods 11 are provided, and are respectively arranged on two sides of the push rod 7 in parallel. In the present embodiment, the two driving levers 11 arranged in parallel improve the stability of the slider 4 when driven.

In one embodiment, as shown in FIGS. 1-6, the sides of the notch 21 are sloped from top to bottom, from the outside to the middle. Namely, the shape of an inverted quadrangular frustum pyramid. The top block 6 matches the shape of the recess 21. When ejecting, the bottom surface area of the top block 6 is smaller than the surface area of the upper surface of the recess 21, and therefore, when the top block 6 is reset, it can accurately enter the recess 21.

As shown in fig. 1-6, during mold opening, the front mold core 1 drives the inclined guide pillar 3 to move upward, so that the slide block 4 moves horizontally, and simultaneously drives the ejector block sliding seat 5 to move horizontally, so that the submarine gate 41 is disconnected from the product 12, and then the ejector plate 8 pushes the ejector block 6 to move upward through the ejector pin 9, and further drives the ejector block sliding seat 5 to push the ejector rod 7 to eject the material handle 10.

When the mold is closed, the ejector pin plate 8 drives the ejector pin 9 to reset, the front mold core 1 drives the inclined guide post 3 to move downwards, and the driving slide block 4 drives the ejector block sliding seat 5 to reset.

The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.

Claims

1. The inner ejection mechanism of the sliding block is characterized by comprising a front mold core, a rear mold core, an inclined guide post, the sliding block, an ejection block sliding seat, an ejection block and an ejector rod, wherein a notch for placing the ejection block is formed in the rear mold core, the ejection block is connected with an ejector pin on an ejector plate, the ejector block is driven by the ejector pin to vertically move, the ejection block sliding seat is horizontally arranged on the ejection block in a sliding manner, the sliding block is arranged on the rear mold core in a sliding manner, a submarine gate and a through hole for arranging the inclined guide post are formed in the sliding block, a guide hole communicated with the submarine gate and penetrating through is formed in the sliding block, the ejector rod is arranged in the guide hole in a sliding manner, one end of the ejector rod is fixedly connected with the ejection block sliding seat, the inclined guide post is arranged on the front mold core, and the inclined guide post is.

2. The ejector mechanism of claim 1, further comprising a driving rod disposed on the ejector block sliding seat, wherein a guiding groove for limiting and guiding the driving rod is formed at a corresponding position of the slider.

3. The slide block inner ejection mechanism according to claim 2, wherein two drive rods are provided, and are symmetrically provided on both sides of the ejector rod.

4. The in-slide ejection mechanism of claim 2, wherein the drive rod has a diameter greater than the diameter of the ejector rod.

5. The in-slider ejector mechanism of claim 1, wherein said notches have sides that slope from top to bottom and from outside to center.