CN220331862U

CN220331862U - Inner drawing structure of die

Info

Publication number: CN220331862U
Application number: CN202322009806.4U
Authority: CN
Inventors: 赵百谦; 周剑; 周朔; 倪晟瑜
Original assignee: WENZHOU LONGHUA DAILY ELECTRONICS CO Ltd
Current assignee: WENZHOU LONGHUA DAILY ELECTRONICS CO Ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-01-12
Anticipated expiration: 2033-07-28

Abstract

The utility model discloses a mold inner drawing structure, which belongs to the technical field of injection molds and comprises a front mold, a rear mold and a mold wall arranged at the lower end of the rear mold, wherein a mold core is arranged between the front mold and the rear mold, a cavity is arranged on the mold wall, a supporting seat is arranged in the cavity, a swinging part is connected inside the supporting seat, two sides of the swinging part are respectively provided with a pressing rod and a bolt, the pressing rod passes through the rear mold to be abutted against the front mold, the bolt passes through the rear mold to be arranged at the lower end of the mold core, a spring is sleeved outside the bolt, one end of the bolt is connected with a wedge block, one side of the wedge block is abutted against an insert, the abrasion of a push rod in a traditional core pulling mode is effectively solved, and the service life of the mold is prolonged.

Description

Inner drawing structure of die

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a mold inner drawing structure.

Background

At present, the side core pulling mechanism is also a common mechanism in an injection mold, and for a concave or convex structure on a plastic part, the traditional injection mold generally adopts an inclined push rod to realize demolding core pulling, but the adoption of the structure can lead the mold structure to be very complex, the assembly is troublesome, and the abrasion loss of the inclined push rod in the production and use processes is large, so that the service life of the mold is seriously influenced. Therefore, it is necessary to relate to an internal drawing structure of the mold.

Disclosure of Invention

Aiming at the problems, the utility model provides a die inner drawing structure, which effectively solves the abrasion to a push rod in the traditional core pulling mode and prolongs the service life of the die.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a take out structure in mould, includes front mould, back mould and sets up in the die wall of back mould lower extreme, be provided with the mould benevolence between front mould and the back mould, be provided with the cavity on the die wall, be provided with the supporting seat in this cavity, the inside swing of supporting seat is connected with the goods of furniture for display rather than for use, and this goods of furniture for display rather than for use both sides are provided with depression bar and bolt respectively, the depression bar passes back mould and front mould butt, the bolt passes back mould setting in mould benevolence lower extreme, the bolt outside cover is equipped with the spring, and bolt one end is connected with the wedge, wedge one side butt has the mold insert.

Preferably, the support base is fixed to the rear mold by a screw.

Preferably, the supporting seat and the swinging piece are connected through a round pin in a plug-in mode.

Preferably, a material piece is arranged between the front die and the die core.

Preferably, the insert has a triangular structure, and the wedge has a trapezoid structure.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

when the mold is closed, the compression bar moves downwards under the action of the front mold, so that the swinging piece rotates around the round pin, the bolt and the wedge block are driven to move upwards, and the insert moves leftwards; when the die is opened, the front die and the rear die are separated, the bolt and the wedge are moved downwards under the action of the spring, the insert is driven to move rightwards, and the insert buckle is separated from a product, so that the internal drawing action is completed, the abrasion of the push rod in the traditional core pulling mode is effectively solved, and the service life of the die is prolonged.

Drawings

Fig. 1 is a cross-sectional view of a mold draw-in structure.

Fig. 2 is a second cross-sectional view of a mold draw-in structure.

Fig. 3 is a schematic diagram of the whole structure of the mold inner drawing structure.

Fig. 4 is a schematic diagram of the whole structure of a mold draw-in structure (rear mold is not shown).

Fig. 5 is a schematic view of the internal structure of the mold inner drawing structure.

The correspondence between the reference numerals and the component names in the drawings is as follows:

1. a front mold; 2. a material piece; 3. a mold core; 4. an insert; 5. a wedge; 6. a bolt; 7. a spring; 8. a swinging piece; 9. a support base; 10. round pins; 11. a compression bar; 12. a rear mold; 13. and (5) mold walls.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, the structure diagram of a drawing structure in a mold according to a preferred embodiment of the present utility model includes a front mold 1, a rear mold 12, and a mold wall 13 disposed at the lower end of the rear mold 12, wherein a mold core 3 is disposed between the front mold 1 and the rear mold 12, a cavity is disposed on the mold wall 13, a supporting seat 9 is disposed in the cavity, a swinging member 8 is connected to the inside of the supporting seat 9, two sides of the swinging member 8 are respectively provided with a compression bar 11 and a bolt 6, the compression bar 11 passes through the rear mold 12 to abut against the front mold 1, the bolt 6 passes through the rear mold 12 to be disposed at the lower end of the mold core 3, a spring 7 is sleeved outside the bolt 6, one end of the bolt 6 is connected with a wedge 5, one side of the wedge 5 abuts against an insert 4, the compression bar 11 moves downward under the action of the front mold 1 when the mold is closed, so that the swinging member 8 rotates around a round pin 10 to drive the bolt 6 and the wedge 5 to move upward, so that the insert 4 moves leftward; when the die is opened, the front die 12 and the rear die 12 are separated, the bolt 6 and the wedge speed move downwards under the action of the spring 7, the insert 4 is driven to move rightwards, the insert 4 is buckled and separated from a product, so that the internal drawing action is completed, the abrasion to the push rod in the traditional core-pulling mode is effectively solved, and the service life of the die is prolonged.

In this embodiment, the supporting seat 9 is fixed to the rear mold 12 by screws, and the periphery of the supporting seat 9 is fixed by screws, so as to prevent the supporting seat 9 from falling off from the rear mold 12.

In this embodiment, the supporting seat 9 and the swinging part 8 are connected by inserting a round pin 10, and the round pin 10 passes through the supporting seat 9 and the swinging part 8, so that the swinging part 8 forms a swinging structure relative to the supporting seat 9, and the pressing rod 11 and the bolt 6 can be pressed by a lever principle according to the conditions of die closing and die separating.

In this embodiment, a material part 2 is disposed between the front mold 1 and the mold core 3, and the molded material part 2 is disposed between the front mold 1 and the mold core 3.

In this embodiment, the insert 4 has a triangular structure, the wedge 5 has a trapezoidal structure, and the inclined sides of the insert 4 and the wedge 5 are abutted, so that two inserts can be placed in one cavity.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims

1. An inner drawing structure of a mold,

the method is characterized in that:

the mold comprises a front mold, a rear mold and a mold wall arranged at the lower end of the rear mold, wherein a mold core is arranged between the front mold and the rear mold, a cavity is arranged on the mold wall, a supporting seat is arranged in the cavity, a swinging part is connected inside the supporting seat, two sides of the swinging part are respectively provided with a pressing rod and a bolt, the pressing rods penetrate through the rear mold and are in butt joint with the front mold, the bolts penetrate through the rear mold and are arranged at the lower end of the mold core, springs are sleeved outside the bolts, one ends of the bolts are connected with wedges, and one sides of the wedges are in butt joint with inserts.

2. The in-mold extraction structure according to claim 1, wherein: the supporting seat is fixed on the rear die through screws.

3. The mold draw-in structure according to claim 2, wherein: the supporting seat is connected with the swinging piece through a round pin in an inserting mode.

4. The in-mold extraction structure according to claim 1, wherein: a material piece is arranged between the front die and the die core.

5. The in-mold extraction structure according to claim 1, wherein: the insert is of a triangular structure, and the wedge block is of a trapezoid structure.