WO2006046371A1 - 缶本体の製造方法および缶本体並びに缶本体の製造装置 - Google Patents
缶本体の製造方法および缶本体並びに缶本体の製造装置 Download PDFInfo
- Publication number
- WO2006046371A1 WO2006046371A1 PCT/JP2005/017311 JP2005017311W WO2006046371A1 WO 2006046371 A1 WO2006046371 A1 WO 2006046371A1 JP 2005017311 W JP2005017311 W JP 2005017311W WO 2006046371 A1 WO2006046371 A1 WO 2006046371A1
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- WIPO (PCT)
- Prior art keywords
- convex
- concave
- outer peripheral
- rotating
- peripheral surface
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/08—Stamping using rigid devices or tools with die parts on rotating carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2646—Of particular non cylindrical shape, e.g. conical, rectangular, polygonal, bulged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/12—Cans, casks, barrels, or drums
Definitions
- Can body manufacturing method can body, and can body manufacturing apparatus
- the present invention relates to a can body manufacturing method, a can body, and a can body manufacturing apparatus for embossing a body portion of a can base having a bottomed cylindrical shape to form a can body.
- cans and bottle cans filled with soft drinks and the like are provided with various patterns and the like on the torso in order to urge consumers to purchase.
- Product identification power is given to cans.
- conventional force is applied, for example, by painting or embossing force.
- the latter embossing cache includes, for example, a first rotating body and a second rotating body that are rotatably supported around rotation axes parallel to each other as shown in Patent Document 1 below,
- the first rotating body is disposed inside the bottomed cylindrical can base, and the second rotating body is disposed outside the can base, and then the first and second rotating bodies are brought close to each other to rotate each rotation.
- the first and second rotating bodies With the body portion of the can base sandwiched between the outer peripheral surfaces of the body, the first and second rotating bodies are rotated about their rotational axes, thereby embossing the body portion of the can base and embossing the can. It is known how to form the body.
- Examples of the can base include a DI can formed by drawing and ironing a metal plate.
- the first rotating body has a function of guiding the can base in the radial direction by inserting the outer peripheral surface thereof along the inner peripheral face of the can base when inserted into the inside of the can base (hereinafter, “ Therefore, the difference between the inner diameter of the can base and the outer diameter of the first rotating body is small, and is generally about 0.8 mm.
- the convex embossed carriage is formed on the body portion.
- embossed portion it is necessary to form a first convex portion that is convex radially outward on the outer peripheral surface of the first rotating body. The gap is further reduced by the protruding height of the portion.
- the first convex portion of the rotating body may collide with the opening end of the can base, and the embossed portion After forming the first rotating body from the inside of the can base, the convex portion of the rotating body may be bowed on the inner peripheral surface of the embossing collar, and such embossing force There was a problem that it was difficult to form the flange. Further, since the first convex portion as the outermost diameter portion of the first rotating body functions as a guide portion for guiding the inner peripheral surface of the can base, the first occupying the entire outer peripheral surface of the first rotating body. When the ratio of one convex part is small, the above-mentioned in-house function cannot be fully exhibited.
- a first concave portion that is recessed radially inward is formed on the outer peripheral surface of the first rotating body, and the first convex portion is formed on the bottom surface of the concave portion.
- the second projection being radially outwardly projected.
- the embossing force is generated after the coating film is formed on the inner and outer surfaces of the can base.
- the coating film is likely to be damaged by the convex portions or concave portions or the convex portions and concave portions formed on the outer peripheral surface of each rotating body.
- the size of the convex portion 101 a formed on the outer peripheral surface of the first rotating body 101 is set to the outer periphery of the second rotating body 102.
- the size is smaller than the size of the recess 102a formed on the surface.
- the outer peripheral surface force of the first rotating body 101 among the wall surfaces defining the convex portion 101a is also Of the wall surfaces that define the rising surfaces 101b and 101b and the recesses 102a rising radially outward
- the outer peripheral surface of the second rotating body 102 that faces the rising surfaces 101b and 101b is also radially inward.
- the body portion located between the inner wall surfaces 102b and 102b extending to the right is pulled in the radial direction in a so-called unconstrained state.
- the body portion of the can base is formed with a sharply-embossed embossing force-feed portion and a plurality of embossed portions. Narrow !, it is required to form densely in the area.
- the convex portion 101a and the concave portion 102a are generally formed by laser processing. As the height and depth of these 101a and 102a increase, the processing accuracy decreases accordingly, so that the embossed portion is formed. There was a problem that the accuracy decreased.
- embossing the body portion for example, a straight ridge line is formed at intervals of about 5 to 6 mm, the amount of unevenness is small, and a minute portion formed by adjoining a plurality of bent portions.
- a straight ridge line is formed at intervals of about 5 to 6 mm, the amount of unevenness is small, and a minute portion formed by adjoining a plurality of bent portions.
- Patent Document 1 JP 2000-515072 Publication
- the present invention has been made in view of such circumstances, and a first object of the present invention is to form a convex shape projecting radially outward from the outer peripheral surface of the body of the can base.
- the second object of the present invention is to provide a can body manufacturing method, a can body, and a can body manufacturing apparatus that can be embossed satisfactorily.
- a method for manufacturing a can body and a method for producing a can body that can clearly realize the formation of a clear embossing portion that sharply rises in a direction and a plurality of embossing force portions that are narrowly packed in a region.
- the third object is to provide a can body manufacturing method, a can body, and a can body manufacturing apparatus capable of satisfactorily recognizing a ridgeline at a bent portion. It is in.
- the method of manufacturing a can body according to the present invention includes a first rotating body supported rotatably around rotation axes parallel to each other, and No. 2 A rotating body, and the first rotating body is disposed inside the bottomed cylindrical can base, and the first rotating body is disposed after the second rotating body is disposed outside the can base.
- the body of the can base is sandwiched between the outer peripheral surfaces of these rotating bodies, and the first and second rotating bodies are rotated about their rotation axes in this state, thereby
- a can body manufacturing method for embossing a body portion to form a can body wherein
- a first concave portion that is concave radially inward is formed on the outer peripheral surface of the one rotating body, and a first convex portion that is convex radially outward is formed in the first concave portion, and the second On the outer peripheral surface of the rotating body, a second convex portion that is convex outward in the radial direction is formed at a portion corresponding to the first concave portion, and the second convex portion corresponds to the first convex portion.
- a second concave portion that is recessed radially inward is formed in the portion, and when the barrel portion is sandwiched between the outer peripheral surfaces of the first and second rotating bodies, the barrel portion is surrounded by the second convex portion.
- the body portion corresponding to the first concave portion and the second convex portion is released by the elastic restoring force of the moon portion by releasing the sandwiching of the body portion by the first and second rotating bodies.
- the embossed portion projecting radially outward can be easily and reliably formed on the outer peripheral surface of the body portion of the can base. That is, since the gap is formed between the inner peripheral surface of the embossed portion and the first convex portion by the restoration movement, the first convex portion is extracted when the first rotating body is also extracted. It is possible to suppress the portion from being caught on the inner peripheral surface of the embossed portion.
- the elastic restoring force causes the inner peripheral surface of the body portion corresponding to the first concave portion and the second convex portion.
- the portion excluding the portion corresponding to the first convex portion and the second concave portion may be restored and moved radially outward from the outermost surface in the radial direction of the first convex portion.
- the first rotating body is extracted from the can base after embossing, it is possible to reliably suppress the first convex portion from being caught on the inner peripheral surface of the embossed portion.
- the embossed caloche part protrudes radially outward with respect to the outer peripheral surface of the body portion.
- Product identification power can be provided.
- the embossed portion is formed by the relocation movement, the plastic deformation portion can be limited to the embossed portion, and the buckling strength of the can body can be reduced, and the inside and outside of the can body can be reduced. It is possible to prevent the coating film formed on the surface from being torn and to prevent so-called blocking when a plurality of can bodies are placed on a conveyor and collectively transported. It can be suppressed.
- the can body manufacturing method of the present invention includes a first rotating body and a second rotating body that are rotatably supported around rotation axes parallel to each other, and an outer peripheral surface of each of these rotating bodies.
- a concave portion that is concave inward in the radial direction, a convex portion that is convex outward in the radial direction, or a concave portion and a convex portion, and the first rotating body is disposed inside the bottomed cylindrical can base.
- the first and second rotating bodies are brought close to each other, and the body portion of the can base is formed by the outer peripheral surfaces of these rotating bodies.
- the first and second rotating bodies are formed of urethane resin having a Shore D hardness of 65 to 85, and the first and second rotating bodies When sandwiching the body portion by the outer peripheral surface, at least the convex portion and the concave portion are elastically deformed radially inward of the respective rotating bodies, and the wall surface defining the convex portion is It is made to contact
- the wall surface defining the convex portion is brought into close contact with the wall surface defining the concave portion via the body portion. Therefore, at the time of sandwiching, embossing can be performed in a state in which the body portion positioned between the convex portion and the concave portion is restrained by the wall surfaces that respectively define the convex portion and the concave portion. Therefore, of the wall surfaces defining the convex portion when sandwiched, the rising surface rising radially outward from the outer peripheral surface of one of the rotating bodies and the wall surface defining the concave portion are the rising surfaces.
- the body portion positioned between the outer wall surface facing the surface and extending radially inward from the outer peripheral surface of the other rotating body is not pulled in the radial direction in an unconstrained state.
- the inner and outer peripheral surfaces of the trunk portion located between the inner wall surface defining the recess and the rising surface of the convex portion facing the inner wall surface are the rising surfaces. Since the embossing is performed while being constrained to the inner wall surface, it is possible to form an embossing force-feed portion in the shape of the wall surface of each of the convex portion and the concave portion. Therefore, the embossing portion that sharply rises in the circumferential force radial direction of the trunk portion by abruptly extending the rising surface and the inner wall surface in the radial direction of the outer circumferential surface force of each rotating body. Can be reliably formed.
- At the time of the sandwiching at least the convex portion and the concave portion are elastically deformed inward in the radial direction of each of the rotating bodies, so that the steep shapes of the convex portion and the concave portion are surely formed on the can base body portion.
- the distance between adjacent embossing portions can be reduced, and a plurality of embossing portions can be densely formed. When they are collected and formed, so-called fine processing can be performed.
- the first and second rotating bodies are formed of the urethane grease while applying force, and the embossed portions are formed while elastically deforming the convex portions and the concave portions.
- the elastic deformation of the convex portion and the concave portion is also released, and the convex portion and the concave portion are directed outward in the radial direction of the respective rotating bodies. Will be restored. Therefore, the inner peripheral surface of the body portion is moved radially outward by this restoring movement, while the outer peripheral surface is moved radially inward, and when the pinching is released, the embossing is performed. It is possible to release the engagement between the processed portion and the convex portion or the concave portion, thereby preventing the occurrence of the problem.
- first and second rotating bodies are formed of the urethane resin, it is possible to minimize the load acting on the inner and outer peripheral surfaces of the can base during the enbossing process.
- the film can be prevented from being damaged.
- the convex portion may be formed on the outer peripheral surface of the first rotating body, and the concave portion may be formed on the outer peripheral surface of the second rotating body.
- a first concave portion that is concave radially inward is formed on the outer peripheral surface of the first rotating body, and the first convex portion that is convex radially outward is formed in the first concave portion.
- a second convex portion is formed on the outer peripheral surface of the second rotating body, the second convex portion being convex radially outward at a portion corresponding to the first concave portion. The second concave inward in the radial direction at the part corresponding to the first convex part When the body portion is sandwiched by the outer peripheral surfaces of the first and second rotating bodies, the concave portion is formed, and the body portion is directed to the outer peripheral surface side in the radial direction by the second convex portion.
- the plastic deformation portion can be limited to the embossed portion, and the can body can be reduced in buckling strength or the can body can be placed on the competitor. It is possible to suppress the occurrence of so-called blocking when a plurality of these are mounted on the substrate and transported collectively.
- the depth of the first recess may be greater than the height of the first protrusion.
- the portion having the largest outer diameter on the outer peripheral surface of the first rotating body is not the first convex portion but the non-formed portion of the first concave portion, so the embossed portion is formed on the body portion. Therefore, the outer diameter of the first rotating body is not increased by forming the first convex portion. Therefore, when the first rotating body is inserted inside the can base during the embossing, it is possible to avoid the first rotating body from colliding with the opening end of the can base. Further, at the time of the insertion, the non-formed portion of the first recess instead of the first convex portion guides the inner peripheral surface of the can base. It will function as a guide. Therefore, even when the ratio of the first convex portion in the entire outer peripheral surface of the first rotating body is small, the guiding function of the first rotating body can be sufficiently exhibited.
- the embossed carriage part protrudes radially outward with respect to the outer peripheral surface of the body part, and the rising from the outer peripheral surface is steep. Therefore, the can body can be provided with a product discriminating power, and the coating film formed on the inner and outer surfaces of the can body can be prevented from being broken.
- one of the first and second rotating bodies supported so as to be rotatable around mutually parallel rotation axes is one of the can bases having a bottomed cylindrical body.
- the first and second rotating bodies are brought close to each other and the outer surfaces of the first and second rotating bodies are placed on the outer peripheral surfaces of the can base.
- a can body manufacturing method comprising sandwiching a body portion, rotating each of the first and second rotating bodies around a rotation axis, and embossing the body portion of the can base to form a can body.
- a first recess recessed radially inward is formed on the outer peripheral surface of the first rotating body, and a first recess recessed radially inward via the first convex curved surface is formed in the first recess.
- a bent recess is formed, and a first protrusion is formed on the outer circumferential surface of the second rotating body so as to protrude radially outward at a position corresponding to the first recess.
- a first bent convex portion that is convex radially outward through the first concave curved surface portion is formed in a position corresponding to the first bent concave portion of the first convex portion, When the body portion is sandwiched between the outer peripheral surfaces of the first and second rotating bodies, the first convex portion presses one peripheral surface of the body portion toward the radially inner side of the first rotating body.
- the other peripheral surface side of the barrel portion is allowed to enter the first recess portion, and the first bent protrusion portion is inserted into the first bent recess portion through the barrel portion, while the first (1)
- the convex curved surface portion presses the body portion on the other circumferential surface side against the first concave curved surface portion, and portions of the trunk portion corresponding to the first bent convex portion and the first bent concave portion are arranged.
- a portion corresponding to the first convex curved surface portion and the first concave curved surface portion while being plastically deformed so as to be convex inward in the radial direction of the first rotating body. Are elastically deformed with a deformation amount larger than the shape of the can body toward the radially outer side of the first rotating body.
- portions of the body portion corresponding to the first convex curved surface portion and the first concave curved surface portion are Since the body part is inserted into the first folding concave part by the first folding convex part while being elastically deformed with a larger deformation amount than the shape in the can body toward the radially outer side of the first rotating body, A sufficient amount of strain can be applied to the inserted portion of the body portion so as to be plastically deformed and bent.
- the peripheral portion of the body portion that is sandwiched and bent by the first folding concave portion and the first folding convex portion (hereinafter referred to as "bending portion"),
- the bent portion may be bent when the portion pressed against the first concave curved surface portion by the first convex curved surface portion is restored and moved due to its elastic deformation.
- the body portion in consideration of such a restoring movement, the body portion is pressed against the first concave curved surface portion by the first convex curved surface portion, and the shape of the can body as a final shape is previously determined. Since it is elastically deformed with a large amount of deformation, it is possible to prevent the bent portion from being bent even if the peripheral portion of the bent portion is restored and moved.
- a can body capable of satisfactorily observing the ridge line of the bent portion can be obtained even if the amount of unevenness of the bent portion is small.
- the internal force of the can body can be extracted from the first rotating body without the pulling force of the rotating body on the bent part.
- At least one second convex portion that is convex radially outward is formed adjacent to the first concave portion, and the second convex portion
- a second bent convex portion is formed on the outer circumferential surface of the second rotating body at a position corresponding to the second convex portion.
- a second concave portion that is concave inward in the radial direction is formed, and a concave portion inward in the radial direction is formed via a second convex curved surface portion at a position corresponding to the second bent convex portion in the second concave portion.
- the second bent concave portion is formed, and when the body portion is sandwiched between the outer peripheral surfaces of the first and second rotating bodies, the other peripheral surface of the body portion is connected to the second rotating body by the second convex portion. Is pressed toward the inside in the radial direction to cause one circumferential surface side of the barrel portion corresponding thereto to enter the second recess portion, and the second bent projection portion is inserted into the second recess portion via the barrel portion.
- the body portion is pressed against the second concave curved surface portion from one circumferential surface side by the second convex curved surface portion, and the second folding convex portion and the second folding concave portion of the body portion are
- the corresponding portion is plastically deformed so as to be convex toward the radially inward direction of the second rotating body, and the portion corresponding to the second convex curved surface portion and the second concave curved surface portion is
- the second rotating body may be elastically deformed with an amount of deformation larger than the shape of the can main body toward the radially outer side of the second rotating body.
- the bent portion formed by the second bent convex portion and the second bent concave portion is the first bent concave portion and the first bent portion described above. Since the protruding direction is opposite to the bent portion formed by the convex portion, each bent portion can be visually emphasized, and each ridgeline can be visually recognized better. .
- first and second rotating bodies may be formed of a urethane material having a Shore D hardness of 65 to 85.
- the first convex curved surface portion is the first concave curved surface portion and the second convex curved surface portion is the second concave You may press against a curved surface part via the said trunk
- the can body manufacturing apparatus of the present invention includes a first rotating body and a second rotating body that are rotatably supported around rotation axes parallel to each other, and an outer peripheral surface of each rotating body.
- a concave portion that is concave inward in the radial direction, a convex portion that is convex outward in the radial direction, or a concave portion and a convex portion, and the first rotating body is disposed inside the bottomed cylindrical can base.
- the first and second rotating bodies are brought close to each other, and the outer peripheral surfaces of these rotating bodies allow the outer periphery of the can base to be disposed.
- a can body manufacturing apparatus configured to form a can body by applying a thickness of the body portion of the can base from a state in which the outer peripheral surfaces of the first and second rotating bodies are in contact with each other.
- the wall surfaces of the convex portions facing each other out of the wall surfaces that respectively define the convex portions and the concave portions facing each other.
- a gap between the concave portion and the wall surface is substantially equal to the thickness of the body portion.
- the inner wall surfaces extending radially inward from the outer peripheral surface of the rotating body are such that the distance between the inner wall surfaces facing each other is directed radially inward. Accordingly, among the wall surfaces defining the convex portion, the rising surfaces extending radially outward from the outer peripheral surface of the rotating body are the distance between the rising surfaces facing each other.
- the taper shape may be gradually narrowed toward the outside in the radial direction.
- the bent portion is sandwiched between the first bent concave portion and the first bent convex portion, and the peripheral portion of the bent portion is elastically deformed in advance so that the bent portion is sandwiched between the first bent concave portion and the first bent convex portion.
- the plastic deformation can be ensured. Thereby, the ridgeline excellent in visibility can be formed.
- FIG. 1 is a schematic diagram showing an overall configuration of a can body manufacturing apparatus for carrying out a can body manufacturing method.
- FIG. 2 is a first process diagram when the method for manufacturing a can body shown as an embodiment of the present invention is implemented, and is a partially enlarged view of the first and second rotating bodies shown in FIG. It is sectional drawing.
- FIG. 3 is a second process diagram when the method for manufacturing a can body shown as one embodiment of the present invention is implemented, and is a partially enlarged view of the first and second rotating bodies shown in FIG. It is sectional drawing.
- FIG. 4 is a third process diagram when the method for manufacturing a can body shown as an embodiment of the present invention is implemented, and is a partially enlarged view of the first and second rotating bodies shown in FIG. It is sectional drawing.
- FIG. 5 is an enlarged view of the first convex portion of the first rotating body and the second concave portion of the second rotating body shown in FIG. 3.
- FIG. 6 is a first process diagram when the method for manufacturing a can body shown as another embodiment of the present invention is carried out, and is a part of the first and second rotating bodies shown in FIG. It is an expanded sectional view.
- FIG. 7 is a second process diagram when the method for manufacturing a can body shown as another embodiment of the present invention is carried out, and is a part of the first and second rotating bodies shown in FIG. It is an expanded sectional view.
- FIG. 8 is a third process diagram when the method for manufacturing a can body shown as another embodiment of the present invention is carried out, and is a part of the first and second rotating bodies shown in FIG. It is an expanded sectional view.
- FIG. 9 is a partially enlarged cross-sectional view showing a can body manufacturing apparatus when a can body manufacturing method is carried out in a conventional example according to the present invention.
- FIG. 1 to 5 show a schematic configuration of a can body manufacturing apparatus shown as an embodiment of the present invention.
- this can body manufacturing apparatus 10 presses the barrel portion of the can base body 50 in the radial direction and protrudes radially outward with respect to the outer circumferential surface of the barrel portion.
- a mold part 11 that forms a mold
- a support part 12 that is disposed below the mold part 11 and supports the can base 50 so as to be movable toward and away from the mold part 11 and to be rotatable.
- a control unit 13 for controlling the drive of the unit 11 and the support unit 12.
- the mold part 11 includes a first rotating body 20 and a second rotating body 21 that are supported so as to be rotatable around rotation axes parallel to each other, and the rotating bodies 20 and 21 are rotated in opposite directions. And a first drive unit 14 for synchronous rotation.
- the first and second rotating bodies 20 and 21 are made of, for example, a metal, preferably urethane, more preferably urethane resin having a Shore D hardness of 65 or more and 85 or less. In the present embodiment, a case will be described in which the first and second rotating bodies 20 and 21 are formed of urethane resin having a Shore D hardness of 65 to 85.
- the support unit 12 includes a chuck 31 configured to hold the bottom surface of the can base 50 or the can body 52, and a slide unit 32 that supports the chuck 31 so as to be able to approach and separate from the mold unit 11. And a motor unit 33 that supports the chuck 31 so as to be rotatable around the can axis.
- a first recess 20a that is recessed radially inward is formed on the outer peripheral surface of the first rotating body 20
- the first A first convex portion 20b is formed on the bottom surface of the concave portion 20a so as to protrude outward in the radial direction.
- the depth of the first recess 2 Oa is larger than the protruding height in the radial direction of the first protrusion 20b, and the outer surface of the first rotating body 20 is outside the non-forming portion 20c of the first recess 20a.
- the diameter is the largest.
- the first convex portion 20b is formed at the central portion in the axial direction of the first concave portion 20a.
- a second convex portion 21a that is convex radially outward is formed at a portion corresponding to the first concave portion 20a.
- a second concave portion 21b that is concave inward in the radial direction is formed in a portion corresponding to the first convex portion 20b of the second convex portion 21a.
- the inner wall surface 21d extending radially inward from the outer peripheral surface of the second projection 21a is an inner wall surface facing each other.
- the distance between 21d and 21d is a taper shape in which the outer peripheral surface force gradually becomes narrower toward the radially inward direction of the second rotating body 21, and among the wall surfaces defining the first convex portion 20b,
- the rising surface 20f extending radially outward from the outer peripheral surface of the first recess 20a is gradually narrower as the distance between the opposing wall surfaces 20f, 20f increases toward the outer side of the first rotating body 20 in the radial direction.
- the taper shape is as follows.
- the radial outward force of the first rotating body 20 also has a magnitude when the first concave portion 20a is seen in plan view.
- the radial outward force of the second rotating body 21 is also seen in plan view of the second convex portion 21a.
- the radial outward force of the first rotating body 20 is also larger than the size of the first convex portion 20b in plan view, and the radial outward force of the second rotating body 21 is also in plan view of the second concave portion 21b. It is smaller than the size.
- the second convex portion 21a of the second rotating body 21 is inserted into and removed from the first concave portion 20a of the first rotating body 20.
- the first convex portion 20b of the first rotating body 20 is inserted into and removed from the second concave portion 21b of the second rotating body 21.
- the first rotating body 20 is not inserted into the inside of the can base 50, and the outer peripheral surfaces of the first and second rotating bodies 20, 21, that is, the non-rotating portions of the first rotating body 20, are not included.
- the state force in which the forming portion 20c outer peripheral surface and the non-forming portion 21c outer peripheral surface of the second rotating body 21 are brought into contact with each other also causes the rotating bodies 20 and 21 to radially extend by the thickness of the barrel portion of the can base 50. When separated, shown in Figure 5.
- the gap between the wall surface of the first convex portion 20b that faces each other and the wall surface of the second concave portion 21b is The thickness is substantially the same as the thickness of the body portion.
- the non-formed portion 20c and the first recessed portion 20a of the first recessed portion 20a are first protruded radially outward as shown in FIG. It is smoothly connected via the convex curved surface part 20d. Further, the first concave portion 20a and the first convex portion 20b are smoothly connected via a first concave curved surface portion 20e that is recessed inward in the radial direction.
- the first concave portion 20a has a tapered shape that is gradually inclined radially inward from the first convex curved surface portion 20d to the first concave curved surface portion 20e. That is, the first concave portion 20a has a mortar shape, and the first convex portion 20b is formed in the deepest portion of the mortar.
- the curvature radius R1 of the first convex curved surface portion 20d is not less than 14 mm and not more than 160 mm
- the curvature radius R2 of the first concave curved surface portion 20e is not less than 14 mm and not more than 160 mm.
- the axial distance L between the first convex curved surface portion 20d and the first concave curved surface portion 20e is 7 mm or more and 25 mm or less, and the deepest position in the first concave portion 20a (the portion located on the most radially inward side) ) And the non-formed portion 20c in the radial direction, that is, the depth A of the first recess 20a is 0.4 mm or more and 1.4 mm or less.
- the bottom surface of the can base 50 is first held by the chuck 31, and then the motor unit 33 is driven to rotate. By rotating 50 around the can axis, the can base 50 is positioned around the can axis.
- the can base 50 is moved forward in the direction of the can axis toward the mold part 11 through the slide part 32 of the support part 12, and the first rotating body 20 is inserted inside the can base 50.
- the first rotating body 20 is disposed inside the can base 50, and the second rotating body 21 is placed on the can base 50. Place outside.
- the first and second rotating bodies 20 and 21 are brought close to each other, and the body portion of the can base 50 is sandwiched between the outer peripheral surfaces of the rotating bodies 20 and 21, and the first and second rotating bodies 20 are in this state.
- 21 is rotated around these rotational axes to emboss the barrel portion of the can base 50 to form the embossed portion.
- the support part 12 is separated from the mold part 11 and the internal force of the can body 52 is extracted from the first rotating body 20.
- the first and second rotating bodies 20 and 21 sandwich the body portion of the can base 50 with a force of 1000N or more and 3500N or less.
- the second projecting portion 2la directs the body portion toward the outer circumferential surface side in the radial direction. Then, pressing is performed so that at least a part of the total deformation amount in this direction is elastically deformed, and the inner peripheral surface side corresponding to this is inserted into the first recess 20a as shown in FIG.
- the first convex portion 20b is fitted into the second concave portion 21b through the body portion.
- portions corresponding to the first convex portion 20a excluding the first convex portion 20b and the second convex portion 21a excluding the second concave portion 21b (hereinafter referred to as “embossed portion”).
- the generated strain is limited to the deformation within the elastic limit. Plastic deformation is avoided.
- the portion corresponding to each of the first convex portion 20b and the second concave portion 21b in the trunk portion is plastic because the first convex portion 20b is fitted into the second concave portion 21b via the trunk portion. It is deformed until it reaches the deformation zone and plastically deforms.
- the wall surfaces 20f, 20f, and 20g that define the first convex portion 20b are shown in FIG. 3 and FIG.
- the wall portion 21d, 21d, 21e defining the second recess 21b is in close contact with the body portion.
- the rising surfaces 20f, 20f of the first convex portion 20b and the inner wall surface 21d and the bottom surface 21e of the second concave portion 21b are respectively shown in the two-dot chain lines in FIG. It is elastically deformed radially inward.
- the first recess 20a and the second recess portion are caused by the elastic restoring force of the body portion.
- the body portion corresponding to the convex portion 21a is restored and moved radially outward to be paired with the first convex portion 20b and the second concave portion 21b.
- the outer peripheral surface force of the corresponding body part (embossing force portion 52a)
- the portion corresponding to each of the first protrusion 20b and the second recess 21b is restored and moved radially outward from the radially outermost surface of the first convex part 20b.
- the elastic restoring force of the barrel portion causes the barrel portions corresponding to the first concave portion 20a and the second convex portion 21a to be restored and moved radially outward, so that the outer circumferential surface of the can base 50 is radially outward. It is possible to easily and reliably form the embossing force feeding portion 52a protruding to the edge.
- a gap is formed between the inner peripheral surface of the embossing force feeding portion 52a in the trunk portion and the first convex portion 20b by the restoring movement, so that the first rotating body 20 is removed from the can base body 50. It is possible to prevent the first convex portion 20b from being caught on the inner peripheral surface of the embossing force feeding portion 52a during extraction.
- the outermost diameter surface of the first convex portion 20b is the surface of the non-formed portion 20c of the first concave portion 20a.
- the outer diameter of the first rotating body 20 is not increased by forming the first convex portion 20b for forming the embossed portion 52a on the body portion because it is positioned more radially inward.
- the first rotating body 20 when the first rotating body 20 is inserted inside the can base 50, it is possible to avoid the first rotating body 20 from colliding with the opening end of the can base 50. Further, at the time of insertion, not the first convex portion 20b but the non-formed portion 20c of the first concave portion 20a functions as a guide portion for guiding the inner peripheral surface of the can base 50. Therefore, even when the ratio of the first convex portion 20b occupying the entire outer peripheral surface of the first rotating body 20 is small, the guide function of the first rotating body 20 is sufficiently achieved. It can be demonstrated.
- a wall surface defining the first convex portion 20b is interposed through the body portion. Since the second concave portion 21b is in close contact with the wall surface defining the second concave portion 21b, the wall between the first convex portion 20b and the second concave portion 21b defines the convex portion 20b and the concave portion 21b. It is possible to perform embossing in a state where the body portion located between them is restrained.
- the body portion located between the rising surface 20f of the first convex portion 20b and the inner wall surface 21d of the second concave portion 21b facing the rising surface 20f is not present. It is not pulled in the radial direction in a restrained state. This makes it possible to minimize the load acting on the ridge line portion where the rising surface 20f and the outermost surface 20g intersect, due to the deformation behavior of the same part of the previous month at the time of sandwiching, The wear of the ridge line portion can be suppressed, and the occurrence of defects such as breakage of the convex portion 20b can be suppressed.
- the embossing force feeding portion 52a can be formed in the shape of the wall surface of each of the first convex portion 20b and the second concave portion 21b. It becomes possible.
- the rising surface 20f and the inner wall surface 21d are steeply extended in the circumferential force radial direction of the moon part by abruptly extending the outer circumferential surface force radial direction of the rotary bodies 20 and 21, respectively. It is possible to reliably form the embossing force-feeding portion 52a that rises to the right.
- the first convex portion 20b and the second concave portion 21b are elastically deformed radially inward of the respective rotating bodies 20, 21 at the time of sandwiching, the first convex portion 20b and the second concave portion 21b It is possible to reliably impart the steep shape to the body portion of the can base 50.
- first and second rotating bodies 20, 21 are formed of the urethane resin, the load acting on the inner and outer peripheral surfaces of the can base 50 during embossing can be minimized. It is possible to prevent the coating film formed on the inner and outer peripheral surfaces of the can base 50 from being damaged.
- the embossing force feeding portion 52a protrudes radially outward from the outer peripheral surface of the body portion, and the rising from the outer peripheral surface becomes steep.
- the can body 52 can be provided with more remarkable product discrimination power and can be prevented from breaking the coating film formed on the inner and outer surfaces of the can body 52.
- the embossed portion 52a is formed in a state where the body portion is elastically deformed inward in the radial direction, the plastically deformed portion can be limited to the embossing force feeding portion 52a in the body portion.
- the buckling strength of the can body 52 and the occurrence of blocking can be prevented more reliably.
- the can body manufacturing apparatus 10 has a thickness corresponding to the thickness of the body portion of the can base 50 from a state in which the outer peripheral surfaces of the first and second rotating bodies 20 and 21 are in contact with each other.
- the wall surfaces that respectively define the first convex portion 20b and the second concave portion 21b that face each other when the rotating bodies 20 and 21 are separated from each other in the radial direction the wall surfaces 20f of the first convex portions 20b that face each other.
- the first protrusion 20b is It is possible to reliably realize that the wall surface to be defined is in close contact with the wall surface that defines the second recess 21b via the body portion.
- the inner wall surfaces 21d, 21d of the second recess 21b have a distance between the wall surfaces 21d, 2 Id facing each other, and the outer peripheral surface force of the second protrusion 21a is also within the radial direction of the second rotating body 21.
- the rising surface 20f of the first convex portion 20b has a taper shape that gradually becomes narrower toward the direction, and the distance force between the wall surfaces 20f and 20f facing each other is also the first peripheral surface force of the first concave portion 20a.
- the body portion of the can base 50 is sandwiched between the outer peripheral surfaces of the first and second rotating bodies 20 and 21, so that the first When the convex portion 20 b is fitted into the second concave portion 21 b via the trunk portion, the wall surfaces that define the first convex portion 20 b and the second concave portion 21 b act on the inner and outer peripheral surfaces of the trunk portion. It is possible to reduce the load.
- the coating film formed on the inner and outer peripheral surfaces of the can base 50 can be prevented from being damaged.
- the engagement between the formed embossing force web 52a and the first protrusion 20b or the second recess 21b is easily released. It can be done.
- the technical scope of the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit of the present invention.
- the first and second rotating bodies 20 and 21 are formed of urethane resin having a Shore D hardness of 65 to 85.
- the first and second rotating bodies 20 and 21 may be formed of metal, for example. The material is not limited.
- the first protruding portion 20b and the second recessed portion 21b are connected to the rotating bodies 20 respectively.
- the wall surfaces 20f, 20f, and 20g that define the first convex portion 20b in the state of being elastically deformed inwardly in the radial direction of 21 are wall surfaces that define the second concave portion 21b through the body portion. Although it is in close contact with 21d, 21d, 21e, such elastic deformation or close contact is not necessary.
- the body portion corresponding to the first recess portion 20a and the second protrusion portion 21a is completely restored by the restoring force.
- the present invention is applicable not only to the case where a part of the deformation amount due to these rotating bodies 20 and 21 is plastic deformation.
- the first convex portion 20b is not limited to being formed in the deepest portion of the first concave portion 20a having a mortar shape, and may be formed on the inclined tapered surface.
- the inner peripheral surface force is embossed that is concave inward in the radial direction.
- the present invention can also be applied when forming a processed part.
- first convex portion 20b may be a V-shaped convex portion that does not have the outermost surface 20g
- second concave portion 21b is a V-shaped concave portion that does not have the bottom surface 21e. Also good.
- first and second rotating bodies 20 and 21 may not be formed without forming the first concave portion 20a of the first rotating body 20 and the second convex portion 21a of the second rotating body 21. That is, the embossing force 52a is formed in the portion elastically deformed in the radial direction of the body, and the embossed portion 52a is formed directly on the body.
- the embossing force 52a is formed in the portion elastically deformed in the radial direction of the body, and the embossed portion 52a is formed directly on the body.
- a first recess 61 that is recessed radially inward, and the first rotating body 20 along the axial direction of the first rotating body 20.
- Two pairs of second convex portions 62 arranged adjacent to the concave portion 61 and projecting outward in the radial direction are formed adjacent to each other in the axial direction.
- a first bent recess 63 that is recessed inward in the radial direction via the first convex curved surface portion 61a is formed.
- the first convex curved surface portion 61a is a convex curved surface in which the amount of concave inward in the radial direction of the first rotating body 20 gradually increases toward the first bent concave portion 63 and the change rate of the concave amount increases. Is formed.
- the amount of depression of the first bent concave portion 63 is configured such that when the barrel portion of the can base 50 is inserted into this portion, the deformation generated in the barrel portion exceeds the elastic limit. Yes.
- a second bent convex portion 64 that is convex outward in the radial direction via the second concave curved surface portion 62a is formed at the radially outer end portion of the second convex portion 62.
- the second concave curved surface portion 62a is a concave portion in which the amount of protrusion of the first rotating body 20 radially outward toward the second bent convex portion 64 gradually increases and the rate of change of the amount of protrusion increases. It is formed on a curved surface.
- the first bent concave portion 63 and the second bent convex portion 64 are formed in an S-shaped longitudinal section, and the first concave portion 61 and the second convex portion 62 are smoothly connected.
- a first convex portion 41 that is convex outward in the radial direction at a position corresponding to the first concave portion 61, and a position corresponding to the second convex portion 62.
- Two pairs of second recesses 42 that are recessed inward in the radial direction are formed adjacent to each other in the can axis direction.
- first convex portion 41 At the radially outer end of the first convex portion 41, a first bent portion that protrudes radially outward via a first concave curved surface portion 41a at a position corresponding to the first bent concave portion 63. Convex part 43 is formed.
- the first concave curved surface portion 41a is a concave curved surface in which the amount of protrusion of the second rotating body 21 radially outward toward the first bent convex portion 43 gradually increases and the rate of change of the amount of protrusion increases. Is formed.
- the second folds 42 are formed on the bottom surface of the second concave portion 42 so as to be recessed radially inward via the second convex curved surface portion 42a at positions corresponding to the second bent convex portions 64.
- a curved recess 44 is formed.
- the second convex curved surface portion 42a has a concave amount inward in the radial direction of the second rotating body 21 toward the second bent concave portion 44. It is formed in a convex curved surface that gradually increases and the rate of change of the dent increases.
- first bent convex portion 43 and the second bent concave portion 44 are formed in an S-shaped longitudinal section, and the first convex portion 41 and the second concave portion 42 are smoothly connected.
- the first concave portion 61 and the first convex portion 41 are arranged such that the first convex portion 41 can be removed from the first concave portion 61 by the first and second rotating bodies 20, 21 being moved closer to and away from each other. It is configured.
- the first bent convex portion 43 is configured to be detachable from the first bent concave portion 63
- the second convex portion 62 is configured to be detachable from the second concave portion 42.
- the second bent convex portion 64 is configured to be detachable from the curved concave portion 44.
- the first bent protrusion 43 of the first protrusion 41 is the body portion of the can base 50.
- the inner peripheral surface side of the body corresponding to this portion is made to be the first recess. Invade 61.
- the first bent convex portion 43 is inserted into the first bent concave portion 63 through the trunk portion, and the first convex curved surface portion 61a is pressed against the first concave curved surface portion 41a through the trunk portion.
- the first convex curved surface portion 61a and the first concave curved surface portion 41a are elastically deformed radially inward of the first and second rotating bodies 20 and 21, respectively.
- the second convex bent portion 64 of the second convex portion 62 directs the barrel portion of the can base 50 toward the radially inward force radially outward (second rotating body
- the outer peripheral surface side corresponding to this portion is caused to enter the second recess 42 by pressing (toward the radially inner side of 21).
- the second bent convex portion 64 is inserted into the second bent concave portion 44 through the trunk portion, and the second convex curved surface portion 42a is pressed against the second concave curved surface portion 62a through the trunk portion.
- the second convex curved surface portion 42a and the first concave curved surface portion 62a are elastically deformed radially inward of the second and first rotating bodies 21 and 20, respectively.
- the shape of the body tries to return to the shape before molding. Is excessively added to the portion corresponding to the first convex portion 41 and the first concave portion 61 in the body portion of the can base 50.
- the deformation amount of the portion corresponding to the first convex portion 41 and the first concave portion 61 toward the radially inward direction of the second rotating body 21 is the first bending.
- the shape is a sharp shape that gradually increases toward the portion corresponding to the convex portion 43 and the first bent concave portion 63 and increases the rate of change of the deformation amount.
- the portion corresponding to the first convex curved surface portion 61a and the first concave curved surface portion 41a in the trunk portion is directed toward the portion corresponding to the first bent convex portion 43 and the first bent concave portion 63.
- the first rotating body 20 is elastically deformed to a greater extent than the shape of the can body 52 as the final shape so that the amount of deformation of the first rotating body 20 in the radially outward direction increases.
- the deformation amount and the change rate can be set by the radii of curvature of the first convex curved surface portion 61a and the first concave curved surface portion 41a.
- the portions corresponding to the second convex portions 62 and the second concave portions 42 are similarly deformed in the second folding body 21 in the radially outward direction.
- a sharp shape that gradually increases as it goes to the portion corresponding to the bent convex portion 64 and the second bent concave portion 44 and increases in the rate of change of the deformation amount is obtained.
- the portion corresponding to the second convex curved surface portion 42a and the second concave curved surface portion 62a in the trunk portion is directed toward the portion corresponding to the second bent convex portion 64 and the second bent concave portion 44.
- the second rotating body 21 is elastically deformed to a greater extent than the shape of the can body 52 as the final shape so that the amount of deformation of the second rotating body 21 in the radially outward direction increases.
- the deformation amount and the change rate can be set by the radii of curvature of the second convex curved surface portion 42a and the second concave curved surface portion 62a.
- the first bent convex portion 43 and the first bent concave portion 63 are formed as shown in FIG.
- the corresponding portion is located radially inward of the can base 50 from the peripheral portion of this portion, that is, the portion pressed against the first concave curved surface portion 41a by the first convex curved surface portion 61a.
- the portions corresponding to the second bent convex portion 64 and the second bent concave portion 44 are the peripheral portions of this portion, that is, the second concave curved surface portion 62a by the second convex curved surface portion 42a. It is located radially outward of the can base 50 from the portion pressed against a.
- the peripheral portion is restored and moved by the elastic restoring force toward the inside in the radial direction of the first rotating body 20.
- the part moves toward the inside in the radial direction of the second rotating body 21 by its elastic restoring force.
- each of the curved portions is a ridge line that protrudes inward or outward in the radial direction of the trunk portion, and a space between these two bent portions is a linear peripheral surface in a longitudinal section.
- a can body 52 is formed.
- the portions corresponding to the first convex curved surface portion 61a and the first concave curved surface portion 41a in the trunk portion are the first rotating body.
- the body part is turned into the first folding concave part 63 by the first folding convex part 43 while being radially deformed with a larger deformation amount than the shape in the can body 52 as the final shape toward the radially outward direction of 20. Since it is inserted, a sufficient amount of strain can be applied to the inserted portion of the body portion so as to be plastically deformed and bent.
- the first convex curved surface portion 61a causes the body portion to be (1) Since it is pressed against the concave curved surface portion 41a and elastically deformed in advance to be larger than the shape of the can main body 52 as the final shape, no one is in the bent portion even if the peripheral portion of the bent portion is restored and moved. It can be prevented from occurring.
- the can body 52 can be obtained in which the ridge line of the bent portion can be satisfactorily observed even when the amount of unevenness of the bent portion is small.
- the portion pressed against the first concave curved surface portion 41a by the first convex curved surface portion 61a moves to be restored due to the elastic deformation, so the first convex portion A bent portion is formed by 41 and the first recess 61 so as to protrude inward in the radial direction of the can base 50.
- the first rotating body 20 can be extracted with good internal force of the can main body 50 without the first rotating body 20 pulling on the bent portion.
- a bent portion formed by the first convex portion 41 and the first concave portion 61 but also a bent portion formed by the second convex portion 62 and the second concave portion 42 is formed.
- Two types of bent parts with different projecting directions with respect to the radial direction are formed on the 52 body parts, and each bent part can be visually emphasized, and each ridgeline can be visually recognized better. .
- first and second rotating bodies 20, 21 are made of a urethane material having a Shore D hardness of 65 or more and 85 or less, the coating formed on the inner and outer peripheral surfaces of the body portion when sandwiched Film damage can be avoided.
- the first convex curved surface portion 61a and the first concave curved surface portion 41a are respectively connected to the first and second rotating bodies 20 Since the first convex curved surface portion 61a is pressed against the first concave curved surface portion 41a through the trunk portion in a state of being elastically deformed inward in the radial direction of 21, the bent portion can be visually recognized more clearly.
- the first convex curved surface portion 61a and the first concave curved surface portion 41a are restored and moved toward the peripheral surface of the can main body 52 when the above-described sandwiching is released.
- the second convex curved surface portion 42a and the second concave curved surface portion 62a are pressed in the state of being elastically deformed in the same manner as described above, so that the formed bent portion is the second convex portion 62 or the second concave portion 42. It is possible to reliably suppress the pulling force.
- the bent portion extending in the can axis direction of the force can body 52 having the bent portion extending in the circumferential direction may be formed.
- first concave portion 61 and the second convex portion 62 are formed on the outer peripheral surface of the first rotating body 20, three or more sets may be formed as one set. It is good also as a structure.
- the first convex portion 41 and the second convex portion 62 are formed on the outer peripheral surface of the first rotary body 20 so as to correspond to the first concave portion 61 and the second convex portion 62 formed on the outer peripheral surface of the first rotary body 20.
- Recess 42 is formed [0124]
- only one of the first concave portion 61 and the second convex portion 62 may be formed on the outer peripheral surface of the first rotating body 20.
- the outer periphery of the first rotating body 20 corresponds to either the first concave portion 61 or the second convex portion 62 formed on the outer peripheral surface of the first rotating body 20 as described above. Only one of the first convex portion 41 and the second concave portion 42 is formed.
- the first concave portion 61 and the second convex portion 62 have a longitudinal section S-shaped between the first bent concave portion 63 and the second bent convex portion 64. However, it may have other shapes as long as it is formed so as to gradually protrude outward in the radial direction from the first bent concave portion 63 toward the second bent convex portion 64. There may be.
- the first rotating body 20 is also formed to correspond to the first rotating body 20.
- the force for disposing the first rotating body 20 inside the can base 50 may be configured such that the first rotating body 20 is disposed inside the can base 50 !.
- the first convex curved surface portion 61a and the first concave curved surface portion 41a are respectively connected to the first convex surface portion 61a.
- the first convex curved surface portion 61a is pressed against the first concave curved surface portion 41a through the trunk in a state where the second rotating bodies 20 and 21 are elastically deformed radially inward, and the second convex
- the curved surface portion 42a and the second concave curved surface portion 62a are pressed in the state of being elastically deformed in the same manner as described above, but instead of this, the elastic deformation may not be performed.
- a can body manufacturing method, a can body, and a can body manufacturing apparatus capable of satisfactorily applying a convex embossed scallop projecting radially outward with respect to the outer peripheral surface of the body portion of the can base.
- the body portion of the can base has a clear embossed portion that sharply rises in the radial direction with respect to its peripheral surface, and a plurality of embossed portions that are narrow and densely packed in a region.
- a can body manufacturing method, a can body, and a can body manufacturing apparatus can be provided.
- a can body manufacturing method, a can body, and a can body manufacturing apparatus capable of satisfactorily recognizing a ridge line in a bent portion are provided.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020077009295A KR101270897B1 (ko) | 2004-10-26 | 2005-09-20 | 캔 본체의 제조 방법 및 캔 본체 그리고 캔 본체의 제조장치 |
GB0708980A GB2434334B (en) | 2004-10-26 | 2005-09-20 | Can body manufacturing method, can body and can body manufacturing apparatus |
US11/577,936 US7950263B2 (en) | 2004-10-26 | 2005-09-20 | Can body manufacturing method, can body and can body manufacturing apparatus |
CN200580036405XA CN101048244B (zh) | 2004-10-26 | 2005-09-20 | 罐主体及其制造方法 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2004-310774 | 2004-10-26 | ||
JP2004310774A JP4667824B2 (ja) | 2004-10-26 | 2004-10-26 | 缶本体の製造方法 |
JP2004367905A JP4786173B2 (ja) | 2004-12-20 | 2004-12-20 | 缶本体の製造方法および缶本体の製造装置 |
JP2004-367905 | 2004-12-20 | ||
JP2005186463A JP4667976B2 (ja) | 2005-06-27 | 2005-06-27 | 缶本体の製造方法 |
JP2005-186463 | 2005-06-27 |
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WO2006046371A1 true WO2006046371A1 (ja) | 2006-05-04 |
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PCT/JP2005/017311 WO2006046371A1 (ja) | 2004-10-26 | 2005-09-20 | 缶本体の製造方法および缶本体並びに缶本体の製造装置 |
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US (1) | US7950263B2 (ja) |
KR (1) | KR101270897B1 (ja) |
CN (1) | CN101773962B (ja) |
GB (2) | GB2434334B (ja) |
WO (1) | WO2006046371A1 (ja) |
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CN103140954B (zh) * | 2011-09-16 | 2015-12-02 | 长园科技实业股份有限公司 | 电池盒封口方法 |
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JP2003020038A (ja) * | 2001-07-06 | 2003-01-21 | Toyo Seikan Kaisha Ltd | 多面体壁を胴部に形成した陽圧缶とその製造方法 |
JP2003260520A (ja) * | 2002-03-07 | 2003-09-16 | Mitsubishi Materials Corp | 缶の形成方法及び形成装置並びに缶 |
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JPH0242353A (ja) | 1988-08-02 | 1990-02-13 | Kobe Steel Ltd | 磁粉探傷用磁化装置 |
JP3012092B2 (ja) * | 1991-11-06 | 2000-02-21 | 臼井 芳雄 | 圧潰性缶 |
GB9525391D0 (en) | 1995-12-12 | 1996-02-14 | Metal Box Plc | Orientation of cans |
US5761942A (en) * | 1996-07-19 | 1998-06-09 | Aluminum Company Of America | Apparatus and method for the embossing of containers |
US5799525A (en) * | 1996-07-19 | 1998-09-01 | Aluminum Company Of America | Tooling and method for the embossing of a container and the resulting container |
US5893286A (en) | 1996-07-19 | 1999-04-13 | Aluminum Company Of America | Apparatus and method for the registered embossing of containers |
JP2000317531A (ja) | 1999-05-10 | 2000-11-21 | Toyota Central Res & Dev Lab Inc | 板材のプレス加工方法 |
JP3478185B2 (ja) | 1999-07-19 | 2003-12-15 | 東洋製罐株式会社 | エンボス加工缶体の製造方法 |
US20030101566A1 (en) * | 2001-12-05 | 2003-06-05 | Ladouceur Harold A. | Self-piercing element, method of attachment and die member |
JP3964682B2 (ja) * | 2002-01-08 | 2007-08-22 | 独立行政法人産業技術総合研究所 | 非化学量論的金属化合物微粒子の分離方法及び分離装置 |
JP3985606B2 (ja) | 2002-06-27 | 2007-10-03 | 住友金属工業株式会社 | プレス成形品の製造装置および製造法 |
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2005
- 2005-09-20 WO PCT/JP2005/017311 patent/WO2006046371A1/ja active Application Filing
- 2005-09-20 CN CN201010116970XA patent/CN101773962B/zh not_active Expired - Fee Related
- 2005-09-20 GB GB0708980A patent/GB2434334B/en not_active Expired - Fee Related
- 2005-09-20 GB GB1013766A patent/GB2470144B/en not_active Expired - Fee Related
- 2005-09-20 US US11/577,936 patent/US7950263B2/en not_active Expired - Fee Related
- 2005-09-20 KR KR1020077009295A patent/KR101270897B1/ko not_active IP Right Cessation
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JPH10328772A (ja) * | 1997-06-05 | 1998-12-15 | Hokkai Can Co Ltd | 缶体及びその製造方法 |
JP2003020038A (ja) * | 2001-07-06 | 2003-01-21 | Toyo Seikan Kaisha Ltd | 多面体壁を胴部に形成した陽圧缶とその製造方法 |
JP2003260520A (ja) * | 2002-03-07 | 2003-09-16 | Mitsubishi Materials Corp | 缶の形成方法及び形成装置並びに缶 |
Also Published As
Publication number | Publication date |
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US20080149648A1 (en) | 2008-06-26 |
CN101773962A (zh) | 2010-07-14 |
GB2434334A (en) | 2007-07-25 |
GB2434334B (en) | 2010-10-13 |
GB2470144A (en) | 2010-11-10 |
GB2470144B (en) | 2010-12-29 |
KR101270897B1 (ko) | 2013-06-07 |
CN101773962B (zh) | 2011-11-16 |
US7950263B2 (en) | 2011-05-31 |
GB201013766D0 (en) | 2010-09-29 |
KR20070068410A (ko) | 2007-06-29 |
GB0708980D0 (en) | 2007-06-20 |
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