Universal Can Corporation

Shizuoka-shi, Japan

Universal Can Corporation

Shizuoka-shi, Japan
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Patent
Universal Can Corporation | Date: 2015-11-05

Provided is a liner-provided cap for sealing the mouthpiece of a threaded container, which includes the cap shell 4 consisting of the top plate 2 and the tubular peripheral wall section 3 that hangs from the peripheral edge of the top plate 2, and the synthetic resin liner 5 provided on the inner surface of the top plate 2. The liner 5 includes the disk-shaped rigid sheet 5a disposed in contact with the inner surface of the top plate 2, and the soft layer 5b that is laminated to the rigid sheet 5a and is more flexible than the rigid sheet 5a. The soft layer 5b is concentric with the rigid sheet 5a and is formed in an annular or disk shape with a diameter smaller than that of the rigid sheet 5a so that the soft layer 5b can be brought into contact with at least the mouthpiece.


Patent
Kurashiki Boseki Kabushiki Kaisha and Universal Can Corporation | Date: 2014-04-16

Inspection equipment for screw part of bottle-can which can reliably inspect the screw part of the bottle-can in a short time is provided. Inspection equipment for a screw part 2 of a bottle-can 4 having a mouth section 3 provided with a curl portion 1 in which an opening edge thereof is rolled up outward and the screw part 2 for fitting a cap by threads below the curl portion 1 for attaching the cap with a liner, the inspection equipment inspects a shape of the screw part 2 of the mouth section 3 by imaging an imaging area which is set so as to include a part of the mouth section 3 while rotating the bottle-can 4 around a can-axis X, the inspection equipment including: a rotating device 21 which holds and rotates the bottle-can 4 around the can-axis; a thread-illumination device 22 which irradiates illumination light A toward the screw part 2 of the bottle-can 4 in the imaging area diagonally upward from a radially outside and can-axially lower part; an imaging device 24 which continuously obtains inspection images including reflected light A of the illumination light A at the imaging area; and an thread-inspection device 25 which inspects the screw part 2 including a thread-starting part by detecting the thread-starting part of the screw part 2 based on an imaging result of the reflected light A.


To provide a variant-can by performing a diameter-reduction process up to the vicinity of a bottom part on a trunk part of a can-body made of metal. A diameter-reduction apparatus for can-trunk for performing a diameter-reduction process on a trunk part of a can-body having a closed-end cylindrical shape with an open end, including: a can-body holder holding a bottom part of the can-body, which is provided with: a base pad abutting on the bottom part of the can-boy; and a first clamping-ring having substantially a cylindrical shape which clamps an outer circumference surface of a trunk part of the can-body at the bottom side and which moves back and forth relative to the base pad along a can-axis direction; a die unit for diameter-reduction provided with a die for a diameter-reduction process of the trunk part by moving back and forth with respect to the can-body holder along the can-axis direction; and a first clamping-ring moving device moving the first clamping-ring backward along the can-axis direction along with an advance of the die.


Patent
Universal Can Corporation | Date: 2014-12-17

To provide a variant-can having a narrow part in the vicinity of a bottom part by performing a diameter-reduction process up to the vicinity of the bottom part on a trunk part of a can-body made of metal in a can-manufacturing device which processes the can-body being held by a pocket-shaped conveying part while conveying. It is provided with: a can-body pocket which holds a can-body by being in contact with a part of an outer circumference surface of a trunk part of the can-body; a base pad which presses a bottom part of the can-body along a can-axis direction; a die in which the trunk part of the can-body is press-inserted; and a clamping ring which protrudes from the base pad toward the die and is provided so as to move back and forth along the can-axis direction, in which the can-body pocket has a plurality of holding surfaces being separated circumferentially from each other along the outer circumference surface, the clamping ring has a plurality of arc-shaped clamping surface being inserted and extracted between the holding surfaces, so that a clamping surface is formed to clamp the outer circumference surface around substantially whole circumference in the vicinity of the bottom part of the can-body by inserting the arc-shaped clamping surface of the clamping ring between the holding surfaces of the can-body pocket.


Patent
Universal Can Corporation | Date: 2015-09-04

A method for producing a screw-top bottle-can and a screw-top bottle-can are provided so that a screw-thread can be formed without damaging an inner coating and a resealing operation can be improved. A shoulder part is formed by reducing a diameter of an opening part of a closed-end cylindrical body, a cylindrical part having an intermediate diameter between a major thread diameter and a minor thread diameter and a tapered part which is tapered from an upper end of the cylindrical part toward an opening-end part are formed above the shoulder part, and forming a screw-thread from the tapered part to the cylindrical part so as to form a starting part of the screw-thread at a middle part of the tapered part.


Patent
Universal Can Corporation | Date: 2014-02-05

A method for producing a screw-top bottle-can and a screw-top bottle-can is provided so that a thread-forming process can be operated without damaging an inner coating and a resealing operation is improved. A shoulder part is formed by reducing a diameter of an aperture part of a closed-end cylindrical body, a cylindrical part having an intermediate diameter between a major thread diameter and a minor thread diameter and a tapered part which is tapered from an upper end of the cylindrical part toward an open-end part are formed above the shoulder part, and performing a thread-forming process from the tapered part to the cylindrical part so as to form a starting part of the screw-thread at a middle part of the tapered part.


Patent
Kurashiki Boseki Kabushiki Kaisha and Universal Can Corporation | Date: 2014-04-16

Inspection equipment for mouth section of bottle-can, including: a rotating device which holds and rotates the bottle-can around a can-axis; a first illumination device which irradiates a first illumination light toward the curl portion in an imaging area; a second illumination device which irradiates a second illumination light having a different light color from that of the first illumination light toward the curl portion from an opposite side to the first illumination light with the imaging area therebetween; a third illumination device which irradiates a third illumination light having a different light color from that of the first illumination light and the second illumination light along an intersecting direction with the first illumination light and the second illumination light; an imaging device which is disposed toward the imaging area and obtains an inspection image including reflected lights at the curl portion; and an asperity-recognition device which detects an edge position of the curl portion based on the reflected light of the third illumination light, specifies the curl portion by referring the edge position, and detects the asperity based on imaging results of the reflected lights of the first illumination light and the second illumination light existing in the inspection image.


Patent
Universal Can Corporation | Date: 2015-02-11

Including: an intermediate-formed product forming process forming a shoulder part 3, a pipe part 18, a tapered part 17 and an aperture-end part 16 above a trunk part; and a screw-forming forming a screw-thread part by an inner mold 64A and an outer mold 64B in which the pipe part 18 is sandwiched therebetween, an outer diameter of the pipe part is formed to an intermediate diameter between a ridge diameter and a bottom diameter of the screw-thread part in the intermediate-formed product forming process, and in the screw-forming process, the screw-thread part is formed from the tapered part to the pipe part so as to form a screw-starting part is formed at an intermediate position of the tapered part, a height of a first step of a right-hand screw-type protrusion of the inner mold is formed to be lower than a height of a second and subsequent steps in an angle range of 90 circumferentially continuing from the screw-starting part, and rolling a screw-forming tool having the inner mold and the outer mold with revolving in a left-hand direction seeing from an aperture-end toward a bottom part of the intermediate-formed product.


Patent
Universal Can Corporation | Date: 2013-03-20

Disclosed are a metal cap and bottle with a cap, which prevent a liner from falling out when the bottle is opened and enable smooth bottle opening and liner insertion. The metal cap (1) comprises a top plate section (2) disposed in the upper section, and a cylindrical section (3) that substantially hangs from the rim of the top plate section and seals an opening of a bottle after the liner (9) has been inserted onto the inner surface of the top plate section in a non-adhered state. The cylindrical section has: a vent hole (8) in the vicinity of the top plate section, that forms a slit-shaped opening in the peripheral direction and releases internal pressure when the bottle is opened; and a top protruding section (8a) and a bottom protruding section (8b) that are formed by bending the upper opening end and the lower opening end of the vent hole (8) inward in the radial direction of the cylindrical section. The end of the top protruding section is positioned further inwards in the radial direction than the outer rim of the liner when the liner is inserted and is also in the same position in the radial direction as the end of the bottom protruding section or positioned further outwards in the radial direction than said end.


Patent
Kurashiki Boseki Kabushiki Kaisha and Universal Can Corporation | Date: 2014-04-16

An inspection method and inspection equipment for mouth section of bottle-can which can reliably detect only a bottle-can having asperity such as a flaw or the like which may cause liquid leakage or the like, and which can shorten the processing time for inspection with excellent productivity are provided. The inspection method includes a first-inspection process for eliminating the bottle-can 30b in which existence of a low-brightness area is detected from a monochrome inspection-image which is obtained by imaging the curl portion 32 with irradiating white light W to the curl portion 32 in an imaging area of the bottle-can 30 which is conveyed along a main-conveyance path 101 continuously and sequentially; and a second-inspection process for judging quality of the bottle-can while conveying the bottle-can 30b which is eliminated by the first-inspection process along a secondary-conveyance path 102 deviated from the main-conveyance path 101, by irradiating illumination lights having two colors from different directions to the curl portion 32 in the imaging area along substantially a tangential direction of a cylindrical surface of the mouth section 31 so as to image a color inspection-image, and distinguishing existence or not of the asperity on the curl portion 32 from signal strengths of the light colors of the color inspection-image.

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