CN217370394U

CN217370394U - Die casting die's slider secondary structure of loosing core

Info

Publication number: CN217370394U
Application number: CN202123277679.3U
Authority: CN
Inventors: 崔翔
Original assignee: Suzhou Yida Precision Industry Co ltd
Current assignee: Suzhou Yida Precision Industry Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-09-06
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a secondary core-pulling structure of a sliding block of a die-casting die, which comprises a core-pulling oil cylinder, a sliding block seat, an insert pin guide seat, an insert pin and a fastening block; the core-pulling oil cylinder drives the slider seat to slide back and forth along the core-pulling direction, the insert pin guide seat is fixedly arranged on the slider seat, the rear end part of the insert pin is arranged in the slider seat and the insert pin guide seat in a sliding manner, the front end of the insert pin guide seat is provided with an insert block, the front end of the insert pin penetrates through the insert pin guide seat and the insert block, and a core-pulling spring matched with the insert pin is arranged in the insert pin guide seat; the wedging block is matched with the rear end of the insert pin to drive the insert pin to move back and forth along the core-pulling direction; this scheme directly once looses core the structure with slider in the past and changes into the secondary structure of loosing core, adopts this kind of mode, can unload earlier and lead to the product to take place to tear loose core after the power, breaks away from the region of loosing core completely again, has avoided the product to glue the slider in production process part, leads to the product to take place to tear the phenomenon of rupture at the die sinking in-process.

Description

Die casting die's slider secondary structure of loosing core

Technical Field

The utility model relates to a die casting die's slider secondary structure of loosing core belongs to die casting die technical field.

Background

At present, some die-casting work pieces have weak positions at the position of loosing core, if adopt conventional structure of loosing core, the product part glues the slider when can take place to loose core in process of production, leads to the product to take place to tear the fracture phenomenon at the die sinking in-process, and the frequency of occurrence is very high, leads to unable continuous smooth production to more manpower and processing cycle have been consumed, greatly increased manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a die casting die's slider secondary structure of loosing core in order to overcome prior art not enough.

In order to achieve the purpose, the utility model adopts the technical proposal that: a secondary core-pulling structure of a sliding block of a die-casting die comprises a core-pulling oil cylinder, a sliding block seat, an embedded pin guide seat, an embedded pin and a wedging block; the core-pulling oil cylinder drives the slider seat to slide back and forth along the core-pulling direction, the insert pin guide seat is fixedly arranged on the slider seat, the rear end part of the insert pin is arranged in the slider seat and the insert pin guide seat in a sliding manner, the front end of the insert pin guide seat is provided with an insert block, the front end of the insert pin penetrates through the insert pin guide seat and the insert block, and a core-pulling spring matched with the insert pin is arranged in the insert pin guide seat; the wedging block is matched with the rear end of the insert pin to drive the insert pin to move back and forth along the core-pulling direction.

Preferably, the slider seat is provided with an insert pin limiting structure matched with the rear end of the insert pin.

Preferably, the wedge block and the insert pin move in directions perpendicular to each other.

Preferably, the front end of the insert is provided with a concave structure, and the concave structure is matched with the outer wall of the insert pin to form an injection molding cavity.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model discloses die casting die's slider secondary structure of loosing core will be in the past the slider directly once loose core the structure change become the secondary structure of loosing core, adopt this kind of mode, can unload earlier and lead to the product to take place tearing loose core after the power of loosing core easily, break away from the region of loosing core completely again, avoided the product to glue the slider in production process part, lead to the product to take place to tear the phenomenon of rupture at the die sinking in-process.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a schematic view of a secondary core-pulling structure of a slide block of a die-casting die of the present invention;

FIG. 2 is a schematic view of a first core pulling state;

FIG. 3 is a schematic view of a second core pulling state.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the secondary slide block core pulling structure of the die casting mold of the present invention comprises a core pulling oil cylinder 1, a slide block seat 2, an insert pin guide seat 3, an insert pin 4 and a wedging block 5; the core-pulling oil cylinder 1 is used for driving the slider seat 2 to slide back and forth along the core-pulling direction, the insert pin guide seat 3 is fixedly installed on the front side of the slider seat 2, the rear end portion of the insert pin 4 is arranged in the slider seat 2 and the insert pin guide seat 3 in a sliding mode, the slider seat 2 is provided with an insert pin limiting structure 8 matched with the rear end of the insert pin 4, and the maximum displacement of the rear end of the insert pin 4 can be limited.

The front end of the insert pin guide seat 3 is provided with an insert 6, the front end of the insert pin 4 penetrates through the insert pin guide seat 3 and the insert 6, the front end of the insert 6 is provided with a concave structure, and the concave structure is matched with the outer wall of the insert pin 4 to form an injection molding cavity 9 at the end part of a product.

The insert pin guide seat 3 is internally provided with a core-pulling spring 7 matched with the insert pin 4, the wedging block 5 is matched with the rear end of the insert pin 4 through a wedge-shaped surface, and the wedging block 5 can drive the insert pin 4 to move back and forth along the core-pulling direction along the vertical movement.

The mold clamping state is shown in FIG. 1: under the action of the wedging block, the insert pin is pushed to the foremost position to compress the core-pulling spring.

The first core-pulling state is shown in fig. 2: driving the fastening block to move upwards along with the die opening of the die, and keeping the insert and the sliding block seat in a static state; the insert pin moves backwards a little first under the action of the core-pulling spring to perform core pulling once, and the insert blocks block the product to be fixed and keep static in the process; the insert pin is static after moving to the limiting structure.

The second core-pulling state is shown in fig. 3: the oil cylinder starts to work to drive the sliding block seat 2, the insert pin guide seat 3 and the insert 6 to integrally move backwards for demoulding.

The core is firstly pulled for one time, the insert pin can be firstly separated from the product, and after the adhesion force of the insert pin is removed, the core is pulled for the second time and the demoulding is carried out, so that the fracture of the weak part at the front end of the product can be avoided.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a die casting die's slider secondary structure of loosing core which characterized in that: the core pulling device comprises a core pulling oil cylinder (1), a sliding block seat (2), an insert pin guide seat (3), an insert pin (4) and a clamping block (5); the core pulling oil cylinder (1) drives the slider seat (2) to slide back and forth along the core pulling direction, the insert pin guide seat (3) is fixedly installed on the slider seat (2), the rear end part of the insert pin (4) is arranged in the slider seat (2) and the insert pin guide seat (3) in a sliding mode, an insert block (6) is arranged at the front end of the insert pin guide seat (3), the front end of the insert pin (4) penetrates through the insert pin guide seat (3) and the insert block (6), and a core pulling spring (7) matched with the insert pin (4) is arranged in the insert pin guide seat (3); the wedging block (5) is matched with the rear end of the insert pin (4) to drive the insert pin (4) to move back and forth along the core-pulling direction.

2. The die casting die's slider secondary structure of loosing core of claim 1, characterized in that: the slider seat (2) is provided with an insert pin limiting structure (8) matched with the rear end of the insert pin (4).

3. The die casting die's slider secondary structure of loosing core of claim 1, characterized in that: the wedge block (5) is perpendicular to the movement direction of the insert pin (4).

4. The die casting die's slider secondary structure of loosing core of claim 1 characterized in that: the front end of the insert (6) is provided with a concave structure, and the concave structure is matched with the outer wall of the insert pin (4) to form an injection molding cavity (9).