CN213733178U

CN213733178U - Safety die structure

Info

Publication number: CN213733178U
Application number: CN202022224199.XU
Authority: CN
Inventors: 谭文彪
Original assignee: Shenzhen Dongchuang Technology Co Ltd
Current assignee: Shenzhen Dongchuang Technology Co Ltd
Priority date: 2020-10-03
Filing date: 2020-10-03
Publication date: 2021-07-20
Anticipated expiration: 2030-10-03

Abstract

The utility model relates to a safe mould structure. The mould structure comprises a horizontal slide and an ejector plate, wherein a safety needle and an ejector pin are fixed on the ejector plate, and the ejector plate is used for driving the safety needle and the ejector pin to synchronously move up and down; at least one clearance hole which is vertical up and down and corresponds to the safety needle is arranged in the horizontal slide; the horizontal slide has at least two positions on the horizontal plane: when the mold is completely closed, the horizontal line position is at a blocking position, and the bottom surface of the horizontal line position blocks the safety needle so that the ejector plate, the safety needle and the ejector pin cannot move upwards; when the mold is opened, the horizontal slide is in a passing position, the safety needle is aligned to the clearance hole, and the top plate drives the safety needle to penetrate through the clearance hole. The utility model discloses when the die sinking, the thimble can only move upwards after horizontal slide moves to safe position, when the compound die, horizontal slide just can horizontal migration after the safety needle breaks away from clearance hole. The ejector pin can not collide with the horizontal slide, so that the ejection effect is ensured, and the service life of the ejector pin and the horizontal slide is prolonged.

Description

Safety die structure

Technical Field

The utility model relates to an injection mold especially relates to an avoid thimble and safety die structure of slide collision.

Background

The plastic injection mold is a tool for producing plastic products and has wide application. The slide mechanism generally refers to a mechanism capable of obtaining lateral core-pulling or lateral parting and resetting actions to pull out the product at the positions of back-off, low sinking and the like. When a mold or a forming machine is abnormal in the prior art, the ejector pin is driven to move upwards during demolding and jacking, so that the condition that the line position collides with the ejector pin easily occurs, the mold is damaged, the ejection effect is influenced, the service life of the mold is prolonged, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's above defect, and provide a safety mould structure to avoid thimble and slide to bump, guarantee ejecting effect and improve life.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a safety die structure comprises a horizontal slide and an ejector plate, wherein a safety needle and an ejector pin are fixed on the ejector plate, and the ejector plate is used for driving the safety needle and the ejector pin to synchronously move up and down; at least one clearance hole which is vertical up and down and corresponds to the safety needle is arranged in the horizontal slide; the horizontal slide has at least two positions on the horizontal plane: when the mold is completely closed, the horizontal line position is at a blocking position, and the bottom surface of the horizontal line position blocks the safety needle so that the ejector plate, the safety needle and the ejector pin cannot move upwards; when the mold is opened, the horizontal slide is in a passing position, the safety needle is aligned to the clearance hole, and the top plate drives the safety needle to penetrate through the clearance hole.

The die structure also comprises an inclined guide post capable of moving up and down, and the inclined guide post is used for driving the horizontal slide to move in a reciprocating manner in the horizontal direction.

The two horizontal line positions with the clearance holes are horizontally symmetrical with each other, and when the mold is opened, the two horizontal line positions move relatively.

And a limiting structure is arranged in the middle between the two horizontal line positions and is used for limiting the maximum stroke of the horizontal line positions. The limiting structure is a screw or a vertical column.

A shovel base capable of moving up and down is arranged between the two horizontal line positions, and the shovel base is used for being inserted between the two horizontal line positions and pressing the two horizontal line positions simultaneously when the mold is closed.

The safety needles are two and correspond to the horizontal line positions one by one.

Compared with the prior art, the utility model beneficial effect be: through setting up safety needle and horizontal line position and mutually supporting, when the compound die, receive horizontal line position to the stopping of safety needle, thimble board and thimble can't the rebound, and when the die sinking, then let horizontal line position remove to keeping away the dead eye and aim at with safety needle earlier, thimble board and thimble just can the rebound, the thimble can only remove to the rebound after the safety position at horizontal line position removal, therefore guaranteed that the thimble can't collide with horizontal line position, guaranteed ejecting effect, also improve the thimble, the life of horizontal line position.

Drawings

Fig. 1 is a sectional view of the mold structure of the present invention.

It should be noted that, the products shown in the above views are all appropriately reduced/enlarged according to the size of the drawing and the clear view, and the size of the products shown in the views is not limited.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and explained with reference to the specific embodiments.

The embodiment of the utility model provides a mould structure, its concrete structure is shown in figure 1.

As shown in fig. 1, the mold structure includes a horizontal slide 10, an ejector plate 31, and an inclined guide post 21 movable up and down. The inclined guide post 21 is used for driving the horizontal slide 10 to reciprocate in the horizontal direction. A safety pin 32 and an ejector pin 33 are fixed to the ejector plate 31. The ejector plate 31 is used for driving the safety needle 32 and the ejector pin 33 to synchronously move up and down. The horizontal slide 10 is provided with an upper and lower vertical clearance hole 11 corresponding to the safety needle 32. The inner diameter of clearance hole 11 is not less than the outer diameter of safety needle 32. The horizontal row 10 with clearance holes 11 is two and horizontally symmetrical to each other. Safety needles 32 have two holes corresponding to clearance holes 11 of horizontal row 10.

The horizontal row 10 has at least two positions in the horizontal plane: when the mold is completely closed, the horizontal row 10 is in a blocking position (fig. 1), and the bottom surface of the horizontal row 10 blocks the safety needle 32 so that the ejector plate 31, the safety needle 32 and the ejector 33 cannot move upwards; when the mold is opened, the horizontal slide 10 is in the passing position, the safety needle 32 is aligned with the clearance hole 11, and the top plate 31 drives the safety needle 32 to pass through the clearance hole 11. The inclined guide post 21 can drive the horizontal slide 10 to reciprocate horizontally between the blocking position and the passing position.

When the mold is opened, the two horizontal rows 10 move relatively. A limiting structure 23 is arranged in the middle between the two horizontal rows 10, and the limiting structure 23 is used for limiting the maximum stroke of the horizontal rows 10. The stop structure 23 may be a screw or a upstand. In addition, a shovel base 22 capable of moving up and down is arranged between the two horizontal rows 10. The shovel base 22 is inserted between the two horizontal rows 10 when the mold is closed and presses the two horizontal rows 10 at the same time, so that the horizontal rows 10 are not pressed to move when the mold is injected.

During mold closing, as shown in fig. 1, the inclined guide post 21 is completely inserted into the horizontal row 10, and at this time, the safety needle 32 is driven by the ejector plate 31 to move down to the lowest position, and the safety needle 32 is blocked by the bottom surface of the horizontal row 10, so that the ejector plate 31 cannot move up, and the ejector 33 cannot move up, thereby ensuring that the ejector 33 cannot collide with the horizontal row 10. In the state shown in fig. 1, the shovel base 22 is moved upward, the inclined guide post 21 is moved upward to drive the horizontal row 10 to move toward the limiting structure 23 until the clearance hole 11 is aligned with the safety needle 32, at this time, the ejector plate 31 can drive the ejector pin 33 to move upward to jack up the injection molded part, and the horizontal row 10 is far away from the ejector pin 33, and the ejector pin 33 cannot collide with the horizontal row 10. When the mold opening state is switched to the mold closing state, as long as the safety pin 32 is still partially inserted into the clearance hole 11, the horizontal slide 10 cannot move horizontally, and the horizontal slide 10 cannot collide with the ejector pin 33 during the mold closing process.

In the embodiment, the safety needle 32 is matched with the horizontal row position 10, when the mold is closed, the safety needle 32 is blocked by the horizontal row position 10, the ejector plate 31 and the ejector 33 cannot move upwards, and when the mold is opened, the horizontal row position 10 is moved to align the clearance hole 11 with the safety needle 32, and the ejector plate 31 and the ejector 33 can move upwards. When the mold is opened, the thimble 33 can move upwards only after the horizontal slide 10 moves to the safety position. When the mold is closed, the horizontal slide 10 can move horizontally after the safety pin 32 is separated from the clearance hole 11. Therefore, the ejector pin 33 cannot collide with the horizontal line 10, the ejection effect is ensured, and the service lives of the ejector pin 33 and the horizontal line 10 are prolonged.

The above description is only for the purpose of illustrating the technical content of the present invention by way of example, so as to facilitate the understanding of the reader, but does not represent that the embodiments of the present invention are limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention.

Claims

1. A safety die structure is characterized by comprising a horizontal slide and an ejector plate, wherein a safety needle and an ejector pin are fixed on the ejector plate, and the ejector plate is used for driving the safety needle and the ejector pin to synchronously move up and down; at least one clearance hole which is vertical up and down and corresponds to the safety needle is arranged in the horizontal slide; the horizontal slide has at least two positions on the horizontal plane: when the mold is completely closed, the horizontal line position is in a blocking position, and the bottom surface of the horizontal line position blocks the safety needle so that the ejector plate, the safety needle and the ejector pin cannot move upwards; when the mold is opened, the horizontal slide is in a passing position, the safety needle is aligned to the clearance hole, and the top plate drives the safety needle to penetrate through the clearance hole.

2. A safety mold structure according to claim 1, wherein the mold structure further comprises an inclined guide post movable up and down for driving the horizontal row to reciprocate in the horizontal direction.

3. A safety mold structure according to claim 1, wherein said two horizontal rows with clearance holes are horizontally symmetrical to each other, and are relatively moved when the mold is opened.

4. A safety mold structure according to claim 3, wherein a limit structure for limiting the maximum stroke of the horizontal row is provided at an intermediate position between the two horizontal rows.

5. A safety mould structure according to claim 4, wherein the limiting structure is a screw or upstand.

6. A safety mold structure according to claim 3, wherein a shovel base movable up and down is provided between the two horizontal rows, and the shovel base is adapted to be inserted between the two horizontal rows and to simultaneously press the two horizontal rows when the molds are closed.

7. A safety mold structure according to claim 3, wherein the safety pins are two in number and correspond one-to-one to the horizontal row.