Bottle wall expansion die for stainless steel water bottle

Abstract

The invention discloses a bottle wall expansion die for a stainless steel water bottle in the field of machining dies. The bottle wall expansion die comprises an upper cover plate and a lower die bottom plate. A die seat is fixedly arranged on the lower die bottom plate. A horn-shaped die seat through hole vertically penetrating the die seat is formed in the die seat. At least two supporting forming dies are arranged in the die seat through hole. The supporting forming dies move downwards, when the lower ends of the supporting forming dies abut against the lower die bottom plate, the die assembling position is reached, and a die wall capable of forming a stainless water bottle wall can be formed by the inner walls of the supporting forming dies at the moment. A lower sealing seat with a sealing ring is fixedly arranged at the position, at the center of the die seat through hole, on the lower die bottom plate, a water flow channel for water to flow in and flow out is arranged in the lower sealing seat, and a hollow core die is connected to the lower sealing seat. The upper end of the core die is connected with an upper sealing seat with an upper sealing ring, multiple water passing holes penetrating the side wall of the core die are formed in the side wall of the core die, and an elastic ejection device is further arranged in the die seat. The bottle wall expansion die has the beneficial effects that operation is simple and convenient, a stainless steel hollow pipe is not likely to be torn in the expansion process, and the expansion effect of the manufactured bottle wall is good.

Description

technical field [0001] The invention relates to a processing mold, in particular to a bottle wall expansion mold of a stainless steel water bottle. Background technique [0002] In people's daily life, water bottles are often used to store water. According to the material of water bottles, there are generally glass water bottles, plastic water bottles, stainless steel water bottles, etc. Glass water bottles are easily broken during use. Plastic water bottles are prone to produce plasticizers that are harmful to the human body when storing hot water, while stainless steel water bottles are relatively strong and not easy to break. Since stainless steel is a material with relatively stable performance, in It is not easy to produce harmful chemical substances when storing hot water, so compared with plastic water bottles and glass water bottles, stainless steel water bottles have better use value. At present, during the production process of the bottle wall of the stainless ste...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a bottle wall expansion mold that can

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