Die discharging structure for avoiding punch wrapping during warm forging reverse extrusion

A technology of mold and punch, which is applied in the field of die unloading structure for warm forging reverse extrusion wrapping punches, can solve problems such as wrapping punches and affecting production efficiency, and achieves improvement of production efficiency and solution of warm forging reverse extrusion forging wrap punch effect

Inactive Publication Date: 2017-09-22
JIANGSU SUNWAY PRECISION FORGING
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Problems solved by technology

[0002] In the field of metal pressure processing technology in the prior art, die unloading, due to thermal expansion and cold contraction of materials, warm forging back extrusion products are prone to wrapping punches in the process of returning materials. At this stage, the back extrusion punches are mostly used The design of ligament plus backlash realizes the material return by reducing the area and friction of the contact surface, but due to the characteristics of the material itself and the spray cooling effect of the mold, it often cannot solve this kind of problem well, and affects the production efficiency

Method used

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  • Die discharging structure for avoiding punch wrapping during warm forging reverse extrusion

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Embodiment Construction

[0014] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0015] like figure 1 As shown, the present invention discloses a die unloading structure that solves the problem of warm forging reverse extrusion punches, which includes a discharge rod 2 and a discharge plate 3 sleeved on the discharge rod 2. The discharge plate 3 can It can move freely on the unloading rod 2, and fix it with nut 1 on the upper end of the unloading rod 2. Through the unloading plate 3 , the phenomenon that the back-extrusion forging is covered with a punch is effectively solved, and through the design of the unloading rod 2 and the nut 1 , the replacement cost of the unloading plate 3 is effectively reduced.

[0016] Preferably, the unloading rod 2 and the lower mold pressing ring 5 are threadedly connected, and the mold spring 4 is installed between the lower mold pressing ring 5 and the stripp...

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Abstract

The invention discloses a die discharging structure for avoiding punch wrapping during warm forging reverse extrusion. The die discharging structure is characterized by comprising discharging rods and a discharging plate arranged on the discharging rods in a sleeving mode, and the discharging plate can freely move on the discharging rods and is fixed at the upper ends of the discharging rods by nuts. The die discharging structure for avoiding punch wrapping during warm forging reverse extrusion is simple, the phenomenon that a warm forging reverse extrusion forge piece wraps a punch is effectively avoided, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of die unloading in the technical field of metal pressure processing, and in particular to a die unloading structure for warm forging reverse extrusion punches. Background technique [0002] In the field of metal pressure processing technology in the prior art, die unloading, due to thermal expansion and cold contraction of materials, warm forging reverse extrusion products are prone to wrapping punches during the material return process, and at this stage, the reverse extrusion punch is mostly used The design of ligament plus backlash realizes material return by reducing the area and friction of the contact surface, but due to the characteristics of the material itself and the spray cooling effect of the mold, it often cannot solve this kind of problem well, and affects the production efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/14B21J13/02
CPCB21J13/14B21J13/02
Inventor 袁海兵李明明姚杨华杨益王维张卫
Owner JIANGSU SUNWAY PRECISION FORGING
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