CN219543941U - Fracture-preventing protection device for die - Google Patents

Abstract

The utility model discloses an anti-fracture protection device for a die, which comprises an upper die, a lower die and inner slide positions, wherein the upper die and the lower die are matched and buckled to be used for injection molding of an ammeter tail cover, a separation block is transversely arranged in the middle of the lower die and fixedly attached to the upper end face of the lower die, a positioning column is vertically arranged in the middle of the separation block and positioned at the center of the lower die, a positioning hole matched with the positioning column is formed in the center of the upper die, grooves are formed in the left side and the right side of the lower die, the grooves are used for placing the inner slide positions when the ammeter tail cover is injected, through holes are formed in the bottom surfaces of the grooves, the through holes are used for placing a top position component, and one end of the inner slide position is tightly attached to the top position component during injection molding. The utility model has the advantages of effectively protecting the inner slide, preventing the inner slide from being subjected to inward injection pressure during injection molding, prolonging the service life of the inner slide and reducing the reject ratio of products.

Description

Fracture-preventing protection device for die

Technical Field

The utility model relates to the technical field of dies, in particular to an anti-fracture protection device for a die.

Background

At present, the production of the ammeter tail cover generally adopts a mode of injection molding, in the mold manufacturing process, the inner line position is used for the side concave or convex inner wall of the back-off product, and the inner line position moves towards the center of the glue piece during mold opening so as to be convenient for demolding; however, the following problems exist in the existing injection molding production of the ammeter tail cover: during injection molding, in order to facilitate movement of the inner slide, a gap is reserved at the back of the inner slide, so that the back of the inner slide is not supported, and because the inner slide is molded with pressure in a mold, cracks can be generated along the gap direction after long-time use to deform or even break, so that the tail cover of an electric meter molded by injection molding deforms, multiple glue, the single weight of a product is increased, the reject ratio and the rejection number of the product are increased, and the production cost of the product is increased.

Disclosure of Invention

The utility model aims to provide a breakage-proof protection device for a die, which has the advantages of effectively protecting an inner slide, preventing the inner slide from being subjected to inward injection molding pressure during injection molding, prolonging the service life of the inner slide and reducing the reject ratio of products.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a prevent protection device that breaks for mould, includes mould, bed die and interior position, go up mould and bed die adaptation lock and be used for moulding plastics the ammeter tail end, wherein the middle part of bed die transversely is equipped with the separate piece, separate the fixed laminating of piece at the up end of bed die, the vertical reference column that is equipped with in middle part of separate piece, this reference column is located the center department of bed die, and go up the center department of mould set up with the locating hole of reference column adaptation, the left and right sides of bed die is equipped with the recess, during the ammeter tail end of moulding plastics, the recess is used for placing interior position, the through-hole has been seted up to the bottom surface of recess, the through-hole is used for placing the roof position subassembly, and roof position subassembly is hugged closely to the one end of interior position during moulding plastics.

Preferably, the top position assembly comprises a limit slide block and a top position block, the widths of the limit slide block and the top position block are the same as the length of the through hole and can slide up and down in the through hole, the upper portion of the limit slide block penetrates through the through hole and is located in the groove, one side, facing the inner position, of the top of the limit slide block is an inclined side, one side of the top position block is an inclined side and is fit with the limit slide block, one end of the inner position is tightly attached to the top position block, and the top position block provides support for the inner position.

Preferably, the lower part of the limiting slide block extends out of the lower end face of the lower die, and the lower part of the limiting slide block is connected with a telescopic oil cylinder for controlling the limiting slide block to move up and down through an inclined guide rail in a sliding manner.

Preferably, the telescopic end of the telescopic cylinder is fixedly connected with one end of the inclined guide rail, the lower part of the limiting slide block is provided with an inclined slide groove matched with the inclined guide rail, and when the inclined guide rail horizontally moves, the limiting slide block vertically moves under the cooperation of the inclined slide groove and the inclined guide rail.

Preferably, the upper die is provided with a plurality of injection holes, and the injection holes are uniformly distributed on two sides of the positioning hole.

Preferably, a plurality of raised strips are arranged on the inner wall of the inner row position.

Compared with the prior art, the utility model has the advantages that: the up-and-down movement of the limiting top block is realized through the cooperation of the telescopic oil cylinder and the inclined guide rail, the inner line position and the top block are blocked to provide a supporting effect for the inner line position through the upward movement of the limiting top block, and the inner line position can move inwards to be convenient for taking out the ammeter tail cover after injection molding is completed through the downward movement of the limiting top block.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of the structure of the lower mold of the present utility model;

FIG. 4 is a schematic structural view of the telescopic cylinder of the present utility model;

FIG. 5 is a cross-sectional view I of the present utility model;

fig. 6 is a second cross-sectional view of the present utility model.

In the figure: 1. an upper die; 101. positioning holes; 102. injection molding holes; 2. a lower die; 201. a separation block; 202. positioning columns; 203. a groove; 204. a through hole; 3. an inner row bit; 301. a convex strip; 4. an ammeter tail cover; 5. a limit sliding block; 501. an inclined chute; 6. a top block; 7. a telescopic oil cylinder; 8. and (3) an inclined guide rail.

Detailed Description

The present utility model will be further described below.

Examples: as shown in fig. 1-6, an anti-fracture protection device for a mold comprises an upper mold 1, a lower mold 2 and an inner slide 3, wherein the upper mold 1 and the lower mold 2 are matched and buckled for injection molding of an ammeter tail cover 4, a separation block 201 is transversely arranged in the middle of the lower mold 2, the separation block 201 is fixedly attached to the upper end surface of the lower mold 2, after the upper mold 1 and the lower mold 2 are buckled, the separation block 201 is attached to the inner wall of the upper mold 1 to separate the left end and the right end of the lower mold 2, a gap is reserved between the left side and the right side of the lower mold 2 and the upper mold 1 for injection molding of two ammeter tail covers 4 at the same time, and injection molding efficiency is improved; preferably, the middle part of the separation block 201 is vertically provided with a positioning column 202, the positioning column 202 is located at the center of the lower die 2, the center of the upper die 1 is provided with a positioning hole 101 adapted to the positioning column 202, the upper die 1 and the lower die 2 are rapidly positioned and buckled through the positioning column 201 and the positioning hole 101, the left side and the right side of the lower die 2 are provided with grooves 203, when the electric meter tail cover 4 is molded, the grooves 203 are used for placing the inner row position 3, the bottom surface of the grooves 203 is provided with a through hole 204, the through hole 204 is used for placing a top position component, the top position component can vertically slide in the through hole, the inner row position 3 is of a concave structure, the width of the inner row position 3 is identical to the width of the grooves 203 and the length of the through hole 204, one end of the inner row position 3 is placed in the grooves 203 and clings to the top position component during injection molding, the top position component provides a supporting effect for the inner row position 3, and deformation of the inner row position 3 due to injection molding pressure is avoided.

Specifically, the top position assembly includes a limit slider 5 and a top position block 6, where the widths of the limit slider 5 and the top position block 6 are the same as the length of the through hole 204 and can slide up and down in the through hole 204, the upper part of the limit slider 5 passes through the through hole 204 and is located in the groove 203, one side of the top of the limit slider 5 facing the inner row position 3 is an inclined side, one side of the top position block 6 is an inclined side and is fit with the limit slider 5, when the top position block 6 is completely fit with the inclined side of the limit slider 5, one end of the inner row position 3 is tightly attached to the top position block 6, and the top position block 6 provides a supporting function for the inner row position 3; when the limit sliding block 5 vertically slides downwards, under the action of the fit of the inclined surfaces, the top position block 6 horizontally moves towards the center direction of the lower die 2, so that the inner slide 3 can also horizontally move towards the center direction of the lower die 2.

Specifically, the lower part of the limit slider 5 extends out of the lower end face of the lower die 2, the lower part of the limit slider 5 is slidably connected with a telescopic cylinder 7 for controlling the limit slider 5 to move up and down through a diagonal guide rail 8, the telescopic end of the telescopic cylinder 7 is fixedly connected with one end of the diagonal guide rail 8, a diagonal chute 501 matched with the diagonal guide rail 8 is formed in the lower part of the limit slider 5, and when the diagonal guide rail 8 moves horizontally, the limit slider 5 moves vertically under the cooperation of the diagonal chute 501 and the diagonal guide rail 8.

Specifically, a plurality of injection holes 102 are formed in the upper die 1, the injection holes 102 are uniformly distributed on two sides of the positioning hole 101, and the injection holes 102 are opposite to a gap between the upper die 1 and the lower die, so that the ammeter tail 4 is conveniently injected.

Specifically, a plurality of protruding strips 301 are formed in the inner wall of the inner row position 3 in a concave shape, and when the ammeter tail cover 4 is injection molded, a stripe structure matched with the protruding strips 301 can be injection molded on the inner wall of the ammeter tail cover 4 through the protruding strips 301, so that the surface area of the inner wall of the ammeter tail cover 4 is increased.

Working principle:

when the ammeter tail cover 4 is injection molded, the inner slide 3 is placed in the groove 203, and the telescopic oil cylinder 7 is in an extending state, so that the lower part of the limit sliding block 5 is positioned in the middle of the inclined guide rail 8, the top position block 6 is completely attached to the upper part of the limit sliding block 5, and the top position block 6 is tightly attached to one end of the inner slide 3; then insert the reference column 202 into the locating hole 1 so that go up mould 1 and bed die 2 lock, then inject into the colloid of moulding plastics into moulding plastics hole 102, accomplish the moulding plastics of ammeter tail cap 4 after moulding plastics the colloid cooling, take down last mould 1, the flexible end shrink of flexible hydro-cylinder 7 is in the shrink state simultaneously for the lower part of spacing slider 5 is located the bottom of oblique guide rail 8, thereby make spacing slider 5 move down, just can promote interior position 3 inwards this moment, make interior position 3 and ammeter tail cap 4 separation, be convenient for take out ammeter tail cap 4 from bed die 2.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present utility model and the core ideas thereof; also, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (6)

1. A prevent protection device that breaks for mould, its characterized in that: including last mould (1), bed die (2) and interior position (3), go up mould (1) and bed die (2) adaptation lock and be used for moulding plastics ammeter tail cap (4), wherein the middle part of bed die (2) transversely is equipped with separate piece (201), and separate piece (201) is fixed laminating at the up end of bed die (2), the vertical reference column (202) that is equipped with in middle part of separate piece (201), this reference column (202) are located the center department of bed die (2), and go up the center department of mould (1) set up with locating hole (101) of reference column (202) adaptation, the left and right sides of bed die (2) is equipped with recess (203), and when moulding plastics ammeter tail cap (4), recess (203) are used for placing interior position (3), through-hole (204) have been seted up to the bottom surface of recess (203), through-hole (204) are used for placing the top position subassembly, and the one end of interior position (3) is hugged closely when moulding plastics.

2. The fracture-preventing protecting apparatus for a mold according to claim 1, wherein: the ejector assembly comprises a limit sliding block (5) and an ejector block (6), the widths of the limit sliding block (5) and the ejector block (6) are the same as the length of a through hole (204) and can slide up and down in the through hole (204), the upper portion of the limit sliding block (5) penetrates through the through hole (204) and is located in a groove (203), one side of the top of the limit sliding block (5) facing the inner line position (3) is an inclined side, one side of the ejector block (6) is an inclined side and is fit with the limit sliding block (5), one end of the inner line position (3) is tightly attached to the ejector block (6), and the ejector block (6) provides support for the inner line position (3).

3. A breakage-proof protection apparatus for a mold according to claim 2, wherein: the lower end face of the lower die (2) extends out of the lower portion of the limiting slide block (5), and a telescopic oil cylinder (7) for controlling the limiting slide block (5) to move up and down is connected to the lower portion of the limiting slide block (5) in a sliding mode through an inclined guide rail (8).

4. A breakage-proof protection apparatus for a mold according to claim 3, wherein: the telescopic end of the telescopic oil cylinder (7) is fixedly connected with one end of the inclined guide rail (8), the lower part of the limiting slide block (5) is provided with an inclined slide groove (501) which is matched with the inclined guide rail (8), and when the inclined guide rail (8) horizontally moves, the limiting slide block (5) vertically moves under the cooperation of the inclined slide groove (501) and the inclined guide rail (8).

5. The fracture-preventing protecting apparatus for a mold according to claim 1, wherein: a plurality of injection holes (102) are formed in the upper die (1), and the injection holes (102) are uniformly distributed on two sides of the positioning hole (101).

6. The fracture-preventing protecting apparatus for a mold according to claim 1, wherein: the inner wall of the inner row position (3) is provided with a plurality of raised strips (301).