CN101279338A

CN101279338A - Post forming method of aluminum pot body

Info

Publication number: CN101279338A
Application number: CNA2007100679243A
Authority: CN
Inventors: 王勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-03
Filing date: 2007-04-03
Publication date: 2008-10-08

Abstract

A secondary shaping method for an aluminum boiler body includes the following steps: (1) an aluminum sheet that is sheared to be punched is taken and placed into a holding domain of a first cavity die and a first convex die is pressed down to the depth of h, so as to be shaped into a rough aluminum boiler body; (2) the rough aluminum boiler body is taken and inversely placed on a second convex die and a second cavity die is pressed down to the deepest point of H, so as to be shaped into a finished aluminum boiler body; wherein, the inner wall of the first cavity die and the outer wall of the first convex die are all matched with the wall of the aluminum boiler body; the first convex die is arranged above the first cavity die; the middle part of the first cavity die is provided with a first pushing block that can descend after being stressed; the opening part of the first cavity die is provided with the holding domain along the edge; the outer wall of the second convex die and the inner wall of the second cavity die are all matched with the wall of the aluminum boiler body; the second cavity die is arranged above the second convex die; the middle part of the second cavity die is provided with a second push block that can life after being stressed; the opening part of the second cavity die is provided with an aluminum forming domain along the edge; besides, h is more than or equal to 0.7H and is less than or equal to 0.95H. The method of the invention has the advantages of large attenuation and low device investment cost, etc.

Description

A kind of post forming method of aluminum pot body

Technical field

The present invention relates to a kind of aluminum pot body processing method, relate in particular to a kind of post forming method of aluminum pot body.

Background technology

Existing pot generally adopts iron or aluminum; pot weight made of iron is bigger; difficult forming; large-scale production is very limited; be exposed to simultaneously and be easy in the air get rusty, cleaning treatment is pretty troublesome, and the aluminum pot adopts 1100 fine aluminiums or 3003 aluminium alloys to make usually; have in light weight, moulding is easy, with low cost, advantages such as thermal efficiency height, non-corrosive when using, in the cook utensil field, made in a large number and used.

At present, the processing method of aluminum pot body mainly contains two kinds of casting die and pulling methods, and casting die can be with reference to Chinese invention patent application: CN200410155131.3, name is called " a kind of aluminum pot and manufacture method thereof ", because the equipment infusion of financial resources is big, production efficiency is low, and manufacturing enterprise seldom uses now; Pulling method utilizes aluminium to have good ductility, adopting particular manufacturing craft is the aluminum pot body shearing good aluminium flake extrusion stretching, this processing method has advantage of high production efficiency, but aluminium is a kind of softer metal, intensity is not high, distortion easily, therefore select and decision aluminum products cooker material thickness is selected and processing on existing problems often, for also having problems on the process equipment of the requirement of thin-walled of the thick end of pot body and the processing method.As Chinese utility model patent: ZL200420022784.X, denomination of invention is " a kind of aluminium matter pot and production particular manufacturing craft thereof " (publication number: CN2698234Y); And for example Chinese invention patent application: CN200410060344.8, name is called " the aluminium alloy system pot of thin-walled of the thick end, the processing method of kettle ", and above-mentioned prior art does not fundamentally solve the problem that process equipment and processing method exist.

United States Patent (USP): US6082166, a kind of " the stretching die arrangement that is used for forming metal container and similar articles " disclosed, should can realize the disposal molding canister by the device of this patent disclosure, specifically as aluminum pot etc., this device comprises the die (matrix) of a metal material, this die is connected in lower bottom base, and the die middle part has disk-like structure; One with the punch (male element) of die mating reaction, this punch is connected in upper bed-plate; One fixed block (blank holder), this fixed block connects and upper bed-plate by spring.This patent has improved certain level to aluminum pot body production technology, but also have the following disadvantages, owing to adopt one-shot forming, its required precision to die device is very high, material requirement to mould itself is also high, because this kind equipment needs external the introduction, it is huge to inject capital into, the attenuation amount was lower than 40% when pot body thin-walled stretched, and the saving space of material also can increase substantially.

Summary of the invention

Technical problem to be solved by this invention is to provide at the above-mentioned state of the art that a kind of attenuation amount is big, cost is low, equipment investment is few, precision of mould own and material are required low post forming method of aluminum pot body.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of post forming method of aluminum pot body is characterized in that comprising the steps:

1. get and sheared aluminium flake to be punched and be positioned on the ccontaining territory of first die, pressing down the first punch degree of depth is h centimetre, is shaped to crude aluminum pot body, and crude aluminum pot body is taken out in die sinking;

2. get crude aluminum pot body and be inverted on second punch, press down second die, be shaped to finished product aluminum pot body to bosom H centimetre,

Wherein, the outer wall of the first die inwall and first punch all matches with the aluminum pot body wall, and aforesaid first punch is positioned at first die top; Aforesaid first die middle part is provided with first pushing block that can descend after stressed, and under the no stress, this first pushing block exceeds first die bottom, is convex shape, and the oral area edge of first die is provided with the ccontaining territory that the pressing mold aluminium flake is treated in placement; The inwall of the second punch outer wall and second die all matches with the aluminum pot body wall, and aforesaid second die is positioned at second punch top; Aforesaid second die middle part is provided with second pushing block that can rise after stressed, and under the no stress, this second pushing block exceeds bottom second die, is convex shape, and the oral area edge of second die is provided with the formative region of aluminum pot body oral area corner,

And h satisfies more than or equal to 0.7H, smaller or equal to 0.95H.

Further, described first die is located on first lower bolster, and described first punch is located on first cope match-plate pattern; Second die is located on second cope match-plate pattern, and described second punch is located on second lower bolster.

Further, the described first punch periphery is glued with first and takes off material circle, and this first takes off the material circle and be connected on first cope match-plate pattern by first elastic component and first guide post; The described second punch periphery also is glued with second and takes off material circle, and this second takes off the material circle and be connected on second lower bolster by second elastic component and second guide post.

Further, described first die is located on first lower bolster by first base that has first steam vent, described first pushing block is positioned at first base middle part, described second die is located on second cope match-plate pattern by second base that has second steam vent, and described second pushing block is positioned at second base middle part.

Further, the described second pushing block frame is in second die middle part.

Further, the below of described first pushing block is provided with rubber-like first polyurethane rubber, and the top of second pushing block is provided with rubber-like second polyurethane rubber.

Compared with prior art, the invention has the advantages that: owing to adopt post forming, the pressing mold that stretches at twice, the attenuation amount of pot body wall improves greatly, can reach more than 50%, thereby further saved material, reduced the cost of pot body, simultaneously, precision and material to die device itself require low, equipment can design fully voluntarily, need not dependence on import, has reduced the production input cost.

Description of drawings

Fig. 1 to Fig. 4 is a crude aluminum pot body process view.

Fig. 5, Fig. 6, Fig. 7 and Figure 10 are finished product aluminum pot body process view.

Fig. 8 is an A portion enlarged drawing for Fig. 7.

Fig. 9 is a B portion enlarged drawing for Fig. 7.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

The mould that is used for the post forming of aluminum pot body comprises first mould and second mould.

With reference to figure 1, first mould is made up of first die 1 and first punch 2, the outer wall of first die, 1 inwall and first punch 2 all matches with the aluminum pot body wall, and, first punch 2 is positioned at first die, 1 top, first die 1 is located on first lower bolster 4 by first base 9 that has first steam vent 91, first die, 1 middle part is provided with first pushing block 3 that can descend after stressed, the below of first pushing block 3 is provided with rubber-like first polyurethane rubber 10, first punch 2 is located on first cope match-plate pattern 5, first punch, 2 peripheries are glued with first and take off material circle 6, and this first takes off material circle 6 and be connected on first cope match-plate pattern 5 by first elastic component 7 and first guide post 8.

Under the no stress, this first pushing block 3 exceeds first die, 1 bottom, is convex shape, and the oral area edge of first die 1 is provided with places the ccontaining territory for the treatment of pressing mold aluminium flake 101.

First punch 2 presses down in the process of aluminium flake 101, after first punch 2 touches aluminium flake 101, on stamped aluminium 101 to first pushing blocks 3 end faces, continue to press down, first pushing block 3 descends, and first polyurethane rubber, 10 pressurizeds shrink, simultaneously, first takes off material circle 6 conflicts first die, 1 back relative first punch 2 risings one segment distance, is depressed into prescribed depth until first punch 2.

Be made up of the second die 1a and the second punch 2a with reference to figure 5, the second moulds, the inwall of the second punch 2a outer wall and the second die 1a all matches with the aluminum pot body wall, and the second die 1a is positioned at second punch 2a top; The second die 1a is located on the second cope match-plate pattern 4a by second a base 9a who has the second steam vent 91a, the second punch 2a is located on the second lower bolster 5a, the second punch 5a periphery also is glued with second and takes off material circle 6a, this second takes off material circle 6a and is connected on the second lower bolster 5a by the second elastic component 7a and the second guide post 8a, second die 1a middle part is provided with second a pushing block 3a that can rise after stressed, the second pushing block 3a is positioned at second base 9a middle part, the second pushing block 3a frame is in second die 1a middle part, the top of the second pushing block 3a is provided with the rubber-like second polyurethane rubber 10a.

Under the no stress, this second pushing block 3a exceeds second die 1a bottom, is convex shape, and the oral area edge of the second die 1a is provided with the formative region of aluminum pot body oral area corner.

After the second die 1a punching press crude aluminum pot body, 102, the second die 1a touch crude aluminum pot body 102, continue to descend, the relative second die 1a of the second pushing block 3a rises, and second takes off material circle 6a touches the segment distance that descends behind the second die 1a, until being depressed into prescribed depth.

Referring to figs. 1 to Figure 10, post forming method of aluminum pot body comprises the steps:

1. get and sheared aluminium flake to be punched 101 and be positioned on the ccontaining territory of first die 1, pressing down first punch, 2 degree of depth is h centimetre, is shaped to crude aluminum pot body 102, and crude aluminum pot body 102 is taken out in die sinking;

2. get crude aluminum pot body 102 and be inverted on the second punch 2a, press down the second die 1a, be shaped to finished product aluminum pot body 103 to bosom H centimetre,

And, h=0.8H, perhaps h=0.9H is preferable, satisfy more than or equal to 0.7H with h, be proper range smaller or equal to 0.95H.

Since adopt post forming, the pressing mold that stretches at twice, and the attenuation amount with respect to one-shot forming pot body wall improves greatly like this.

First mould and second mould are all adaptive with the aluminum pot body profile, and in the present embodiment, both are a same mold.

Claims

1. a post forming method of aluminum pot body is characterized in that comprising the steps:

1. get and sheared aluminium flake to be punched (101) and be positioned on the ccontaining territory of first die (1), pressing down first punch (2) degree of depth is h centimetre, is shaped to crude aluminum pot body (102), and crude aluminum pot body (102) is taken out in die sinking;

2. get crude aluminum pot body (102) and be inverted on second punch (2a), press down second die (1a), be shaped to finished product aluminum pot body (103) to bosom H centimetre,

Wherein, the outer wall of first die (1) inwall and first punch (2) all matches with the aluminum pot body wall, and aforesaid first punch (2) is positioned at first die (1) top; Aforesaid first die (1) middle part is provided with first pushing block (3) that can descend after stressed, under the no stress, this first pushing block (3) exceeds first die (1) bottom, is convex shape, and the oral area edge of first die (1) is provided with places the ccontaining territory for the treatment of pressing mold aluminium flake (101); The inwall of second punch (2a) outer wall and second die (1a) all matches with the aluminum pot body wall, and aforesaid second die (1a) is positioned at second punch (2a) top; Aforesaid second die (1a) middle part is provided with second pushing block (3a) that can rise after stressed, under the no stress, this second pushing block (3a) exceeds second die (1a) bottom, is convex shape, the oral area edge of second die (1a) is provided with the formative region of aluminum pot body oral area corner

And h satisfies more than or equal to 0.7H, smaller or equal to 0.95H.

2. post forming method of aluminum pot body according to claim 1 is characterized in that described first die (1) is located on first lower bolster (4), and described first punch (2) is located on first cope match-plate pattern (5); Second die (1a) is located on second cope match-plate pattern (4a), and described second punch (2a) is located on second lower bolster (5a).

3. post forming method of aluminum pot body according to claim 2, it is characterized in that described first punch (2) periphery is glued with first and takes off material circle (6), this first takes off material circle (6) and is connected on first cope match-plate pattern (5) by first elastic component (7) and first guide post (8); Described second punch (2a) periphery also is glued with second and takes off material circle (6a), and this second takes off material circle (6a) and be connected on second lower bolster (5a) by second elastic component (7a) and second guide post (8a).

4. post forming method of aluminum pot body according to claim 2, it is characterized in that described first die (1) is located on first lower bolster (4) by first base (9) that has first steam vent (91), described first pushing block (3) is positioned at first base (9) middle part, described second die (1a) is located on second cope match-plate pattern (4a) by second base (9a) that has second steam vent (91a), and described second pushing block (3a) is positioned at second base (9a) middle part.

5. post forming method of aluminum pot body according to claim 4 is characterized in that described second pushing block (3a) frame is in second die (2a) middle part.

6. post forming method of aluminum pot body according to claim 4, the below that it is characterized in that described first pushing block (3) is provided with rubber-like first polyurethane rubber (10), and the top of second pushing block (3a) is provided with rubber-like second polyurethane rubber (10a).