Bottle making method

FIELD: plastic metal working.

SUBSTANCE: invention can be used for making of bottles from sheet blanks. Proposed method includes making of shell, top plate, neck, bottom plate made integral with support ring, flanging and shoe, assembling and connecting the parts by welding. Shell is butt-welded to bottom plate on support ring. Both plates are made of blanks of equal size and in form of bottom plate. When making top plate, support part of shoe is calibrated to bring its diameter to diameter of shell.

EFFECT: reduced labor input.

1 ex, 1 dwg

 

The invention relates to the field of metal forming and can be used in the manufacture of containers from sheet stock with the subsequent welding.

Known methods of manufacturing containers from sheet blanks by means of deep drawing of steel billets and sheet workpiece with the subsequent welding parts (GOST 51753-2001, GOST standard 949-73, GOST 12247-78, GOST 15860-84).

However, the manufacture of cylinders of sheet blanks, followed by a deep hood and billet requires high energy costs and complex equipment, which leads to high costs.

The manufacture of containers from tubular workpieces to be useful for production of large cylinders of more than 200 litres and pressure - more than 400 at (40 MPa).

A known method of manufacturing a cylinder (patent RF №2009748, 21 D 51/24, publ. 30.03.1994), including the manufacture of cylindrical shell, a cap with an inner cone and an outer cylindrical threads, top plate, bottom plate with a convex bottom and cylindrical side surfaces connecting the upper and lower ends of the shell by welding. The lower plate is connected with the cylindrical shell convex surface inside the shell, and the side cylindrical surface of bends.

The disadvantage of this method is the complexity of manufacturing the Oia cylinder alignment, the bottom of the bottom with the sides, and the unreliability of the weld shell with the bottom plate.

The closest technical solution adopted for the prototype, is a method of manufacturing a cylinder (patent RF №2247621, 21 D 51/24, publ. 10.03.2005, including the manufacture of shells, top, bottom, neckline, the bottom plate and the connection of all the parts welded.

Lower the bottom of perform along with swivel ring, flared and boot, insert the bottom the bottom of the cowling back on the ring to lock the shell flared and produce welding of the shell with the lower bottom of the butt on a base ring.

The disadvantage of this method is the complexity of manufacture of the housing parts of the container, requiring special equipment for the lower and upper ends, and manufacturer for each cylinder nameplate.

The technical problem solved by the invention consists in the unification of the parts of the cylinder, reducing the labor costs of production and increase productivity.

The problem is solved due to the fact that in the method of manufacturing a cylinder, including the manufacture of shells, top plate, cap, bottom plate made integral with swivel ring, flared and Shoe, the Assembly and connection of parts by welding, and the welding of the shell with the bottom plate produce a butt weld on a base ring, according to the invention both bottoms are made from blanks of the same size and fulfill the form lower plate, in order to make the top of the bottom supporting part of the Shoe is calibrated to match its diameter to the diameter of the shell.

In addition, the workpiece to the top of the bottom put the passport of the container.

The invention is illustrated the schematic representation on the drawing cylinder, made by the proposed method and consists of a shell 1, the upper plate 2, neck 3, the bottom plate 4 with the Shoe 5.

A method of manufacturing a container includes the manufacture of shell 1, the manufacturer in the mold of identical blanks-two nickels bottoms, made in the shape of the bottom plate 4 along with swivel ring, flared and the Shoe 5.

On one workpiece-penny stamps applied passport cylinder in the place of the workpiece, so that after forming the passport was on the convex surface. The molded plate 2 with the passport on the convex surface is subjected to calibration reference portion 6 of the Shoe to match its diameter to the diameter of the shell and perform on it the hole for the filler neck 3.

The bottom plate 4 is inserted into the shell 1 through slip ring to another shell flared and produce welding of the shell with the lower bottom of the butt on a base ring.

The top plate are welded to the ring with butt.

The manufacture of the container according to the proposed method allows the use of procurement-nickels are the same size for rnego and lower ends, to put the passport on the workpiece-snout to the top of the bottom, such as stamps, not to produce a separate serial plate attached to the cylinder and the execution of the top plate to calibrate the basic parts of a Shoe to match its diameter to the diameter of the shell.

No need to use special equipment (different molds for manufacturing the top plate, which will reduce the labor involved in the manufacture of the container.

Example. For the manufacture of acetylene cylinder with a diameter of 219 mm molded and welded shell longitudinal seam of the sheet thickness of 4 mm, sheet metal thickness 5 mm cut out billet-a Nickel and the mold is formed into the bottom plate, made in conjunction with the supporting part under of the Shoe with a diameter of 225 mm To the other workpiece-nickle put the passport of the container, such as branding, and in the same press-fit molded top plate with a wall thickness of 5 mm, and then calibrate the reference part of the Shoe to match its diameter to the diameter of the shell. After calibration in the bottom punch a hole for the mouth and produce the Assembly and welding of parts: top plate welded to the shell plate and welding the shell with the lower plate is produced on a base ring, made during stuffing. After welding parts cylinder passport is located on the convex surface of the upper bottom of the container.

the production of the container by the proposed method allows to reduce labor costs, to reduce the number of parts and equipment due to the use for the upper and lower ends of identical workpieces, one of the mold and apply the passport of the container directly on the workpiece.

1. The method of manufacture of the container, including the manufacture of shells, top plate, cap, bottom plate made integral with swivel ring, flared and Shoe, the Assembly and connection of parts by welding, and the welding of the shell with the bottom plate produce a butt weld on a base ring, wherein both the bottom is made from blanks of the same size and are in the form of the bottom plate, while when running the top of the bottom supporting part of the Shoe is calibrated to match its diameter to the diameter of the shell.

2. The method according to claim 1, characterized in that the workpiece to the top of the bottom put the passport of the container.



 

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