Production line for manufacturing hollow chopsticks from stainless steel stretched circular pipe

A stainless steel and production line technology, which is applied in the direction of manufacturing tools and other manufacturing equipment/tools, etc., can solve the problems of unfavorable finishing, difficulty in displaying the charm of chopsticks, poor hand feeling and air tightness, etc., and achieve the advantages of good finishing, smooth appearance and comfortable hand feeling Effect

Inactive Publication Date: 2006-10-25
张立斌 +1
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Problems solved by technology

[0002] At present, there are solid chopsticks stamped and formed from stainless steel plates imported from South Korea on the domestic market. This kind of chopsticks is heavy and inconvenient to use.
The domestic one is the hollow chopsticks made of stainless steel plate stamped into two halves of the chopsticks body and then welded together, and the other is t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] The production line of the present invention will be described in detail below by taking the production of 48 pairs of chopsticks, that is, 96 chopsticks as an example:

[0014] (1) Select three stretched stainless steel round tubes with a length of 8 meters, a diameter of Ф8 and a wall thickness of 0.3 mm, and cut them with a cutting machine according to the length of each chopstick of 0.25 meters;

[0015] (2) Send 96 stretched stainless steel tubes with a length of 0.25 meters to the rotary forging press to be forged into tapered tubes, the diameter of the large end of the tapered tube is Ф8, and the diameter of the small end of the tapered tube is Ф3;

[0016] (3) annealing the formed tapered circular tube in step (2) with an industrial electric furnace to eliminate material stress, and pickling to remove oxide scale to make the tapered circular tube bright;

[0017] (4) Use a four-wheel extruder to extrude the big end of the tapered round tube, so that the big end ...

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Abstract

The invention is about the production line of the hollow chopsticks by drawing stainless steel round pipe. The pipe with 0.33mm of thickness is transferred into a spin-forging machine to form the taper round pipe which is annealed to remove the material stress by industrial electrical furnace. The pipe is washed by acid to remove oxide skin and to become bright. The big head of the pipe is pressed by the four-wheel extruder to become the taper square pipe and refined by the horizontal punching machine. The small round head is annealed partially and sealed by rolling spinning. The tetraquetrous taper square cap is punched by a vertical punching module and welded by the resistance welding. At last the chopsticks are polished and carved with calligraphy and painting.

Description

technical field [0001] The invention relates to a production line of chopsticks, in particular to a production line of hollow chopsticks made of stainless steel stretched round tubes. Background technique [0002] At present, there are solid chopsticks stamped and formed from stainless steel plates imported from South Korea on the domestic market. These chopsticks are heavy and inconvenient to use. The domestic one is the hollow chopsticks made of stainless steel plates stamped into two halves of the chopsticks body and then welded together, and the other is the hollow chopsticks made of high-frequency welding stainless steel round tubes. The production of chopsticks by these two processes is limited by materials and processes, which is not conducive to precision. Processing, the appearance of the produced chopsticks is not smooth, the feel and airtightness are poor, and it is difficult to show the charm of the chopsticks. Contents of the invention [0003] The purpose of...

Claims

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Application Information

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IPC IPC(8): B23P23/04
Inventor 张立斌张泽
Owner 张立斌
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