Pot body pull expansion pressing mold

Abstract

The invention discloses a pull expansion pressing mold. The pull expansion pressing mold comprises an upper mold and a lower mold; the upper mold is provided with an edge pressing ring and a pull expansion wedge; the edge pressing ring is connected with a pressing rod, and is mounted on the lower side of an upper template; the pull expansion wedge is mounted on the lower side of the upper template; the lower end of the pull expansion wedge is wedged; a mold core is mounted on the upper side of a lower template; and a pull expansion slide block is arranged on a first slide rail at the top of the mold core, and is corresponding to the pull expansion wedge in position. The pull expansion pressing mold combines pressing and pull expansion procedures on one mold, reduces annealing and polishing procedures, reduces the machining cost, eliminates the annealing potential safety hazards, and meanwhile, reduces the labor intensity of staff; and the pressing and pull expansion procedures are combined, so that such problems as asymmetric heights, different sizes or even cracking of openings caused by secondary positioning errors of two procedures are prevented, the product quality is more stable, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of hardware processing, in particular to a mold for processing a heat-resisting pot body. Background technique [0002] The vacuum insulation pot has a double-layer structure. The inner layer is generally made of glass or stainless steel, and the outer layer is made of stainless steel or plastic. For the molding process of the stainless steel liner, the traditional process is divided into three processes for processing. First, use the mold to auxetic the pot body, then anneal, polish and trim the auxetic pot body, and finally use the mold to press the shape . The equipment structure of each process in this method is relatively simple, but it has the following defects: First, the auxetic process often causes the pot body to crack during the subsequent pressing process due to unstable dimensions, or the large error in the size of the pot mouth affects the thermal insulation performance, and maintenance is required. Se...

AI Technical Summary

Problems solved by technology

The equipment structure of each process in this method is relatively simple, but it has the following defects: First, the auxetic process often causes the pot body to crack during the subsequent pressing process due to unstable dimensions, or the large error in the size of the pot mouth affects the thermal insulation performance, and maintenance is required. Seriously lead to product scrapping; the annealing, polishing and edge trimming process increases additional production costs, and at the same time brings certain safety hazards; because the pressing process requires secondary positioning, it is easy to affect product quality due to inaccurate positioning and asymmetrical pressing height. Or due to the error of the annealing process, the pot body cracks during the molding process or the size of the spout is unstable.

The appearance of the above problems not only makes the inner and outer layers of the jug not neatly assembled and affects the appearance, but also affects the sealing due to the large size error of the spout and reduces the performance of heat preservation.

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