Pot body pull expansion pressing mold

A technology of mold and expansion pressure, which is applied in the field of processing molds for thermos pots, can solve problems affecting product quality, unstable dimensions, and asymmetrical molding heights, so as to reduce the annealing and polishing process and avoid asymmetrical opening heights , The effect of reducing processing costs

CN106424351AActive Publication Date: 2017-02-22揭阳市海霖电器有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-02-22

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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.
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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...

Examples

Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] An auxetic die, comprising an upper die and a lower die, the upper die is provided with a blank holder ring 11 and an auxetic wedge 12, the flange holder ring 11 is connected to a pressure rod 111 and installed on the lower side of the upper template 13, It is used to make the outer wall of the workpiece close to the mold core 21 to complete the shaping process; the auxetic wedge 12 is installed on the lower side of the upper template 13, and the lower end of the auxetic wedge 12 is wedge-shaped; the upper side of the lower template 23 is installed There is a mold core 21 corresponding to the contour of the pot body, and the top of the mold core 21 is provided with an auxetic slider 22 on the first slide rail 221, and the position of the auxetic slider 22 co...