Arc core-pulling device of die-casting mould

A core-pulling device and die-casting mold technology, applied in the core-pulling field of castings, can solve problems such as low dimensional accuracy of castings, increased production man-hours, and low production efficiency, and achieve the effects of shortening production man-hours, improving production efficiency, and convenient operation

Inactive Publication Date: 2010-02-03
NINGBO DONGHAO DIE CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ①Because the clay core is manually placed, the error will be relatively large, for example, the position of the clay core will be deviated, that is to say, the dime

Method used

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  • Arc core-pulling device of die-casting mould
  • Arc core-pulling device of die-casting mould
  • Arc core-pulling device of die-casting mould

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Depend on Figure 1 ~ Figure 3 The structural diagram of the arc core-pulling device of the die-casting mold shown shows that it includes a guide rail 2, a moving cylinder 1, a rack 10, a gear set 9 intermeshed on a gear seat 3, a connecting block 6, and a casting arc The circular arc slide block 4 that inner hole matches. Wherein, the rack 10 is slidably matched with the guide rail 2 and detachably connected with the piston rod of the mobile cylinder 1 . The gear set 9 meshes with the rack 10 , one end of the connecting block 6 is fixedly connected with the gear set 9 , and the other end is fixedly connected with the arc slider 4 .

[0020] The gear set 9 includes a gear I 91, a gear II 92, and a gear III 93, the gear I 91 meshes with the rack 10, the gear II 92 meshes with the gear I 91, and the gear III93 meshes with the g...

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Abstract

The invention discloses an arc core-pulling device of a die-casting mould, which comprises a guide rail (2), a moving oil cylinder (1), a rack (10), gear groups (9) which are positioned on a gear seat(3) and mutually engaged, a connecting block (6) and an arc slide block (4) which is matched with an arc inner hole of a casting, wherein the rack (10) is matched with the guide rail (2) in a slide mode and detachably connected with a piston rod of the moving oil cylinder (1); the gear groups (9) are engaged with the rack (10); and one end of the connecting block (6) is fixedly connected with thegear groups (9), while the other end is fixed connected with the arc slide block (4). After the structure of the arc core-pulling device is adopted, because an arc motion is changed into a linear motion, the mechanical motion avoids larger error caused by manual operations so as to ensure that the size precision of a molded casting is higher. Meanwhile, all the motions of the arc slide block aredriven by a hydraulic oil cylinder, thus the operation is convenient, and production working hours are greatly shortened, thereby greatly improving the production efficiency.

Description

technical field [0001] The invention relates to the technical field of core pulling for castings, in particular to an arc core pulling device for a die-casting mold. Background technique [0002] Die casting is a method of casting die forging. It is a casting method in which molten alloy liquid is poured into the pressure chamber, filled into the cavity of a steel mold at high speed, and the alloy liquid is solidified under pressure to form a casting. A die-casting mold with correct and reasonable structure is a prerequisite for the smooth progress of die-casting production. In actual production, various die-casting molds will be designed for various die-casting parts. For example, when encountering a casting with a circular arc-shaped inner hole, it is generally used to manually place a core in the cavity. This core is a meltable core, which means that the casting must be rounded after the casting is cast. The mud core in the arc section melts and flows out. This arc cor...

Claims

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Application Information

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IPC IPC(8): B22D17/20
Inventor 张意斌陈光圆杨文浩
Owner NINGBO DONGHAO DIE CASTING
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