Barrel stretch forming process and barrel manufactured by process

A technology for drawing and forming barrels, applied in the field of barrel bodies, can solve the problems of requiring large supporting equipment, unfavorable polishing treatment, and consuming human resources, etc., and achieves the effect of reducing processing procedures, smooth outer surface, and uniform feeding.

Inactive Publication Date: 2015-12-02
李侨志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This three-step stretching process not only has uneven material feeding, but also has a high scrap rate. It requires a lot of supporting equipment, consumes a lot of human resources, and has high production costs. After multiple stretches, the round material will have scratches similar to scratches on the surface. Stretching marks, bubbling and other phenomena are not conducive to polishing

Method used

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  • Barrel stretch forming process and barrel manufactured by process
  • Barrel stretch forming process and barrel manufactured by process
  • Barrel stretch forming process and barrel manufactured by process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A barrel stretch forming process, comprising:

[0027] Step 1, provide round material;

[0028] Step 2: Carry out one forward stretching and one reverse stretching successively on the circular material successively.

[0029] After the forward stretching is completed, the first forming barrel is obtained, and after the reverse stretching is completed, the second forming barrel is obtained, wherein the depth of the second forming barrel is greater than the depth of the first forming barrel, and the second forming barrel The diameter of the body is smaller than the diameter of the initial molding barrel.

[0030] After the reverse stretching is completed, the second molding barrel has a skirt, and the skirt is cut and a part of the edge is reserved, and the reserved part of the edge is crimped.

[0031] Before the skirt is cut, the second forming barrel body is subjected to a bottom pressing process so that the second forming barrel body has a barrel bottom of a preset s...

Embodiment 2

[0034] A barrel body, which is made by the process described in the first embodiment, makes the outer surface of the barrel body smooth without polishing treatment, and no stretch mark or bubbling phenomenon occurs.

Embodiment 3

[0036] Such as Figure 1 to Figure 15 As shown, a positive and negative stretching composite mold is used to make a round material 22 (ie blank) into a barrel, including an upper mold S and a lower mold X;

[0037] The lower mold X includes a working table surface 6 and a concave-convex mold 1, a lower pressing ring 2, a lower mold ejection plate 3 and a lower power movement plate 4 arranged on the working table surface, and the lower pressing material ring 2 is set on the concave-convex mold 1, the lower mold ejector plate 3 is located inside the concave-convex mold 5, and the lower power movement plate 4 is connected with the lower press ring 2 and the lower die ejector plate 3 respectively, so that the lower press ring 2 and the lower die ejector plate 3 are connected. The ejector plate 3 of the lower mold moves along the axial direction of the concave-convex mold 1 under the push of the lower power movement plate 4, and the concave-convex mold 1 is fixed on the working tab...

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Abstract

The invention relates to a barrel stretch forming process capable of manufacturing a barrel by using a round stock and the barrel manufactured by the process. The barrel stretch forming process comprises the following the steps: supply the round stock; continuously carrying out one-time positive stretch and one-time negative stretch for the round stock in sequence. The barrel achieves the effect of the smooth outer surface and cannot generate stretch marks or a bubbling phenomenon. The barrel stretch forming process continuously carries out one-time positive stretch and one-time negative stretch for the round stock in sequence, so that the forming of the barrel can be completed, and the traditional three steps of stretch procedures is not needed. Moreover, material feeding and internal stress are uniform in the positive and negative stretch processes, the crystal structure is good, the outer surface is smooth, and the stretch marks or the bubbling phenomenon cannot occur. The manufacturing procedure is reduced, the use of corollary equipment is reduced, the cost of labor resources is reduced, the reject rate is lowered, and the production cost is reduced.

Description

technical field [0001] The invention relates to a barrel body stretching forming process which can make a barrel body from a round material and a barrel body made by the process. Background technique [0002] Making a barrel from a round material (such as a barrel container used in coffee machines, soybean milk machines, etc.) requires at least a three-step stretching process including the first, second, and third stretches in the traditional stretching process , it is necessary to equip a set of stretching dies for the three-step stretching process, and after completing the three-step stretching process, it is sometimes necessary to undergo annealing treatment to remove internal stress and eliminate material hardening before proceeding to the next step of processing. many. This three-step stretching process not only has uneven material feeding, but also has a high scrap rate. It requires a lot of supporting equipment, consumes a lot of human resources, and has high product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/24B21D22/22B21D37/10B21D51/18
Inventor 李侨志
Owner 李侨志
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