CN100340356C

CN100340356C - Method for producing metal container

Info

Publication number: CN100340356C
Application number: CNB2005100340023A
Authority: CN
Inventors: 黎永雄
Original assignee: KANGMEI PRODUCT CO Ltd XINHUI DISTRICT JIANGMEN CITY
Current assignee: KANGMEI PRODUCT CO Ltd XINHUI DISTRICT JIANGMEN CITY
Priority date: 2005-04-04
Filing date: 2005-04-04
Publication date: 2007-10-03
Anticipated expiration: 2025-04-04
Also published as: CN1748892A

Abstract

The present invention discloses a method for producing metal containers, which comprises the following processing steps: firstly, metal materials are processed into a drum body by the extrusion technology or the stretching technology; then, the opening position of the drum kettle body is processed by edge cutting; the drum kettle body is processed by necking; the present invention has the necking processing that the container opening of the drum kettle body is processed by punch forming for multiple times by a plurality of dies of which the inner diameters are gradually reduced; finally, the container is processed by edge cutting in a unify height at the opening position; the container opening of the drum kettle body is processed by screw threads matched with a kettle cover; the surface of the drum kettle body is washed; the drum kettle body is dried and polished on the outer surface; the inner surface of the drum kettle body is sprayed by paint and dried; finally, the outer surface is sprayed by paint and dried. The metal container manufactured by the method for producing metal containers is smooth at the transition arc on the container opening and has stable quality of products.

Description

A kind of manufacture method of canister

Technical field

The present invention relates to a kind of manufacture method of canister.

Background technology

The manufacture method of metal current container is divided into two classes usually:

The first kind: be to use the polylith sheet metal to be bonded with each other and form, the cost of this metalloid container is low, but on the surface of canister, joint gap is arranged, thereby had a strong impact on the outward appearance of product, and on joint gap, also need to do encapsulation process, as: scolding tin or be coated with fluid sealant etc., but because the problem of airtight quality usually causes the appearance of the seepage and the contamination phenomenon of splendid attire thing.

Second class: be to use extruder and extrusion die tool that the metal derby extruding is formed, perhaps using metallic plate punching to stretch forms, though the canister surface of this class does not have joint gap, prevent the effective of the seepage of splendid attire thing and pollution, but when the closing in of canister is handled, typically using spinning machine processes, like this workman's operating technology is had relatively high expectations, labour intensity is big, and the transition arc on vessel port is not sufficiently oily yet, usually need transition arc is carried out polishing, thereby lowered production efficiency of products greatly, strengthened production cost.

Summary of the invention

In order to overcome above-mentioned manufacture method deficiency, the invention provides the canister manufacture method that a kind of closing in that can better carry out vessel port is handled.

The present invention solves the problems of the technologies described above the technical scheme that is adopted:

A kind of manufacture method of canister is characterized in that processing step is as follows:

(1) at first is to use extrusion technique or stretching technique cylinder, cuts edge at the opening part of cylinder again, guarantee the high unity of cylinder metal material processing one-tenth band diapire;

(2) the described cylinder of step (1) is closed up processing, described closing in are handled the shaping dies that is to use a plurality of internal diameters to diminish gradually the vessel port of cylinder are carried out repeatedly punch forming, unify the side cut of height then at the vessel port place and handle;

(3) on the vessel port of the described cylinder of step (2), process the screw thread that matches with container cover;

(4) the described cylinder of step (3) is carried out surface clean, dry again with outer surface and polish;

(5) the described cylinder of step (4) is carried out the processing of spraying paint, the oven dry of inner surface, carry out at last outer surface processings of spraying paint, dry.

The invention has the beneficial effects as follows: the shaping dies that the present invention uses a plurality of internal diameters to diminish gradually in the processing of closing up carries out repeatedly punching press to the vessel port of cylinder, make the transition arc on the vessel port identical at last with the shape of dies cavity, because thereby the design adopts repeatedly punching press to reach the purpose that closes up gradually, so the transition arc on the vessel port that processes is comparatively slick and sly and consistent, constant product quality, economized out the operation of transition arc being carried out polishing, improved production efficiency of products greatly, reduced production cost, and working strength of workers is minimized.

The specific embodiment

A kind of manufacture method of aluminium kettle, its processing step is as follows:

(1) at first is to use extrusion technique or stretching technique that aluminum metal is processed into the cylinder kettle body of being with diapire, cuts edge at the opening part of cylinder kettle body again, guarantee the high unity of cylinder kettle body;

Adopt the step of punching stretch fabrication techniques cylinder kettle body to be: at first to go out suitable round aluminium flake, according to the height of aluminium kettle round aluminium flake is carried out the punching stretch of one or many again, become cylinder kettle body according to the aluminium kettle size stamping-out of making.

The step that adopts extrusion technique to make cylinder kettle body is: according to the aluminium block that the aluminium kettle size of making selects for use size to be fit to, then aluminium block is preheated processing after, use extruder and extrusion die tool that aluminium block is squeezed into cylinder kettle body.

(2) the described cylinder kettle of step (1) body is closed up processing, described closing in are handled the shaping dies that is to use a plurality of internal diameters to diminish gradually the vessel port of cylinder kettle body are carried out repeatedly punch forming, unify the side cut of height then at the vessel port place and handle;

This closing in treatment process is to use the pipeline system design, it is provided with a plurality of cylinder kettle body holddown grooves in closing in equipment, the arrangement of holddown groove can be round or linear pattern etc., above holddown groove to a plurality of shaping dies should be arranged, size according to the shaping dies internal diameter is arranged in order from big to small, when needing work, cylinder kettle body is installed in holddown groove, shaping dies carries out punching press to the vessel port of cylinder kettle body successively, make that at last the transition arc on the vessel port is identical with the shape of dies cavity, because thereby the design adopts repeatedly punching press to reach the purpose that closes up gradually, so the transition arc on the vessel port that processes is comparatively slick and sly, thereby economized out transition arc is carried out the polishing operation, improved production efficiency of products greatly, reduce working strength of workers.

This process is not limited to the aluminum metal in the foregoing description, can also adopt metal materials such as iron, stainless steel or copper, but because the ductility of different metal materials has nothing in common with each other, so occur the metal folding line during for fear of closing in, the relative reduction volume of each shaping dies internal diameter size has certain control, for example: for aluminum metal, the relative reduction volume of each shaping dies internal diameter size should be controlled between 0.5mm～2.5mm, preferably 1mm; For the copper metal, the relative reduction volume of each shaping dies internal diameter size should be controlled between 0.8mm～2.8mm, preferably 1.3mm; For ferrous metal, the relative reduction volume of each shaping dies internal diameter size should be controlled between 1mm～3mm, preferably 1.5mm.

(3) on the vessel port of the described cylinder kettle of step (2) body, process the screw thread that matches with pot lid;

Described Screw thread process method is divided into two kinds: first kind is: clamp internal thread tooth circle in the vessel port of the described cylinder kettle of step (2) body, and use edging machine closely to be entrenched in the tooth circle in the vessel port; Second kind is: use spinning machine to carry out external screw thread processing on the vessel port of the described cylinder kettle of step (2) body.

(4) the described cylinder kettle of step (3) body is carried out surface clean, dry again with outer surface and polish;

(5) the described cylinder kettle of step (4) body is carried out the processing of spraying paint, the oven dry of inner surface, carry out at last outer surface processings of spraying paint, dry.

The canister that uses the manufacture method of this canister to make, transition arc on vessel port is comparatively slick and sly, constant product quality, economized out circular arc portion shaping polishing operation, improved production efficiency of products greatly, reduced production cost, and working strength of workers is minimized.

Claims

1. the manufacture method of a canister is characterized in that processing step is as follows:

(3) on the vessel port of the described cylinder of step (2), process the screw thread that matches with pot lid;

2. the manufacture method of a kind of canister according to claim 1, the step that it is characterized in that the described employing stretching technique making of step (1) cylinder is: at first go out suitable round sheet metal according to the canister size stamping-out of making, according to the height of canister sheet metal is carried out the punching stretch of one or many again, become cylinder.

3. the manufacture method of a kind of canister according to claim 1, the step that it is characterized in that the described employing extrusion technique making of step (1) cylinder is: select the suitable metal derby of size for use according to the canister size of making, after then metal derby being preheated processing, use extruder and extrusion die tool that metal derby is squeezed into cylinder.

4. the manufacture method of a kind of canister according to claim 1 is characterized in that the relative reduction volume of described each the shaping dies internal diameter size of step (2) is controlled between 0.5mm～2.5mm.

5. the manufacture method of a kind of canister according to claim 1, it is characterized in that the described Screw thread process method of step (3) is: in the vessel port of the described cylinder of step (2), clamp female tooth circle, and use edging machine closely to be entrenched in the tooth circle in the vessel port;

6. the manufacture method of a kind of canister according to claim 1 is characterized in that step (3) Screw thread process method is: use spinning machine to carry out external screw thread processing on the vessel port of the described cylinder of step (2).

7. the manufacture method of a kind of canister according to claim 1 is characterized in that adopting the canister material of above-mentioned manufacture method is aluminium.