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Stair cavity mold production process

A production process and step-type technology, which is applied in the direction of molds, cores, and mold components, can solve the problems of inability to form through holes in one piece, affect the strength of the step structure, and affect the casting quality, so as to achieve the effect of molding and demoulding Good, uniform hardness, high processing accuracy

Inactive Publication Date: 2020-02-07
GUANGZHOU DIE & MOLD MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] None of the existing step cavity molds can integrally form through-holes, and the through-holes need to be secondary processed by punching tools. The secondary punching may affect the structural strength of the original steps
In addition, since the mold core is prone to uneven hardness in various parts during processing, the mold core is easy to bond to the casting material, which affects the casting quality

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of approaches consistent with aspects of the disclosure as recited in the appended claims.

[0025] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0026] The step cavity mold production process of the present invention comprises:

[0027] S1. Blanking fixed mold blanks and movable mold blanks, rough machining, quenching and te...

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PUM

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Abstract

The invention discloses a stair cavity mold production process. The process comprises the steps of discharging fixed mold workblank and a movable mold workblank; rough machining, tempering, finish machining and obtaining a movable mold and a fixed mold; forming a main mold cavity in the middle of the fixed mold workblank, forming an auxiliary mold cavity in the middle of the movable mold workblank, and drilling multiple through holes in the auxiliary mold cavity; discharging multiple I columns, carrying out heat treatment on the I columns, and fixing the I columns after heat treatment in the through holes; performing discharging and rough machining to obtain a main mold core blank part, carrying out further heat treatment and finish machining on the main mold core blank part, and obtaininga main mold core; assembling and fixing the main mold core in a main mold cavity of the fixed mold; and assembling the fixed mold and the movable mold, and enabling the I columns to be in abut jointwith the main mold core. Through machining of the fixed mold, the movable mold, the main mold core and the I columns, the fixed mold, the movable mold, the main mold core and the I columns are high inmachining precision, after heat treatment of the main mold core and the I columns, hardness is uniform, forming and demolding effect is good, and the casting quality can be improved.

Description

technical field [0001] The invention relates to the technical field of cavity mold production, in particular to a step cavity mold production process. Background technique [0002] Elevator steps are the basic structural components of escalators. Elevator steps are usually produced by casting using large moulds. In order to increase the drainage effect of many elevator steps, it is necessary to set through holes at the junction of step pedals, pedals and kick plates. [0003] None of the existing cascade cavity molds can integrally form the through hole, and the through hole needs to be processed twice by punching tools, and the secondary punching may affect the structural strength of the original step. In addition, since the mold core is prone to uneven hardness in various parts during processing, the mold core is prone to bonding of casting materials, which affects the casting quality. Contents of the invention [0004] Based on this, the object of the present inventi...

Claims

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Application Information

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IPC IPC(8): B23P15/24B22C9/06B22C9/22
CPCB22C9/06B22C9/22B23P15/24
Inventor 肖伟雄郑桂林马广兴
Owner GUANGZHOU DIE & MOLD MFG
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