Multi-trough integral stretching die for stainless steel troughs

A technology of stainless steel and mould, which is applied in the field of multi-groove overall stretching moulds, which can solve the problems that the depth of the main groove cannot be too large, the first stretching rate cannot be too small, and it is easy to break, so as to reduce the tension. Stretch scrap rate, reasonable and practical structure, easy stretch forming effect

CN102059292BActive Publication Date: 2013-08-28ZHEJIANG FRANTA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-08-28

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Abstract

The invention discloses a multi-trough integral stretching die for stainless steel troughs. The die comprises a first die for first stretching, a second die for second stretching and a matched workbench. The die is characterized in that: an oil injection hole is formed at the top position for forming a trough cavity at least on the male die of the first die; and the oil injection hole is directlyor indirectly connected with one end of an oil inlet pipe, and the other end of the oil inlet pipe is connected with an oil injection device of an oil press. The friction force between a stainless steel plate and the die is reduced through the lubricating hydraulic oil so as to facilitate stretching and molding, improve the surface quality of a product, reduce the stretching rejection rate and reduce the subsequent treatment cost of the product; and the die has simple structure and is easy to implement.
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Description

technical field

[0001] The invention relates to a multi-groove integral stretching mold for water tanks. Background technique

[0002] With the continuous improvement of people's living standards, stainless steel multi-slot sinks have been widely promoted and applied because of their economical, beautiful, and practical advantages. For this reason, many manufacturers have developed new production methods.

[0003] For example, the Chinese patent No. 200610052984.3 "A Forming Process for Stainless Steel Water Tanks" selects stainless steel plates and uses pressure equipment for panel processing according to the design model specifications: press the panel to form a disc with stepped edges, and then Carry out edge trimming and punching, cut the edge flat, punch the bottom, and then turn the panel to form a stainless steel panel with an angle of α on the inner wall of the through hole at the bottom; process the tank body: blank the tank body according to the matching panel , a...

Examples

Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] Such as Figure 1 to Figure 6 Shown, a kind of stainless steel sink multi-groove overall stretching mold, it comprises: the first mold that is used for the first stretching, the second mold that is used for the second stretching, the working table that cooperates, these and The traditional molds are similar, and the key point of the invention is that on the main punch 1 and the sub-punch 2 of the first mold, there are oil injection holes 3 at the top positions used to form the cavity, and the oil injection The hole 3 is arranged on the top of the main punch 1 and the top of the sub-punch 2 for forming each cavity, and the oil injection hole 3 communicates with the cavity 4 in the respective punch, and the bottom surface of each cavity 4 is connected to the mold frame. 5 fit, through the through hole 6 opened on the upper panel of the f...