Guidance device, device for moving disc-shaped member, can lid manufacturing system and beverage can manufacturing system

1. A guidance device comprising:

an upstream-side guidance part including plural upstream-side guidance members disposed along a conveyance route of a disc-shaped member to be conveyed in a thickness direction thereof and to be used as a can lid, the upstream-side guidance members being disposed at positions different from one another in a circumferential direction of the disc-shaped member to be conveyed, to thereby guide the disc-shaped member; and

a downstream-side guidance part including plural downstream-side guidance members disposed at positions different from one another in the circumferential direction of the disc-shaped member to be conveyed, to thereby guide the disc-shaped member having been guided by the upstream-side guidance members and conveyed, wherein

each of the positions of the upstream-side guidance members in the circumferential direction is different from each of the positions of the downstream-side guidance members in the circumferential direction, and at least one of the upstream-side guidance part and the downstream-side guidance part is able to move forward and backward with respect to the other;

wherein a fixed member to be fixed to a fixing location is attached to at least one of end portions of the plural upstream-side guidance members positioned on an upstream side in a conveyance direction of the disc-shaped member and end portions of the plural downstream-side guidance members positioned on a downstream side in the conveyance direction of the disc-shaped member,

a through hole for passing a fastening member is formed in the fixed member, and

the through hole is formed into an elongate-hole shape.

2. The guidance device according to claim 1 , wherein a portion where both the upstream-side guidance part and the downstream-side guidance part are positioned exists beside the conveyance route of the disc-shaped member, and guidance of the disc-shaped member by the downstream-side guidance part is started amidst performance of guidance of the disc-shaped member by the upstream-side guidance part.

3. The guidance device according to claim 2 , wherein the plural upstream-side guidance members and the plural downstream-side guidance members are placed on a same circle on a plane orthogonal to a conveyance direction of the disc-shaped member, the plane passing both the upstream-side guidance part and the downstream-side guidance part.

4. The guidance device according to claim 3 , wherein the upstream-side guidance members and the downstream-side guidance members are alternately disposed in a circumferential direction of the same circle.

5. A device for moving a disc-shaped member comprising:

a conveyance device providing a driving force to a disc-shaped member to be used as a can lid and conveying the disc-shaped member; and

a guidance device guiding the disc-shaped member conveyed by the conveyance device, wherein

the guidance device comprises the guidance device according to claim 1 .

6. A can lid manufacturing system comprising:

a conveyance device providing a driving force to a disc-shaped member to be used as a can lid and conveying the disc-shaped member;

a guidance device guiding the disc-shaped member conveyed by the conveyance device; and

a processor performing predetermined processing to the disc-shaped member, wherein the guidance device comprises the guidance device according to claim 1 .

7. A beverage can manufacturing system comprising:

a conveyance device providing a driving force to a disc-shaped member to be used as a can and conveying the disc-shaped member;

a guidance device guiding the disc-shaped member conveyed by the conveyance device; and

an attaching device attaching the disc-shaped member to an opening portion of a can lid filled with a beverage, wherein

the guidance device comprises the guidance device according to claim 1 .

8. A guidance device comprising:

an upstream-side guidance part including plural upstream-side guidance members disposed along a conveyance route of a disc-shaped member to be used as a can lid, to thereby guide the disc-shaped member; and

a downstream-side guidance part including plural downstream-side guidance members disposed along the conveyance route, to thereby guide the disc-shaped member having been guided by the upstream-side guidance members and conveyed, wherein a guidance region in a conveyance direction of the disc-shaped member where the upstream-side guidance part guides the disc-shaped member and a guidance region in the conveyance direction where the downstream-side guidance part guides the disc-shaped member partially overlap in the conveyance direction, and movement of at least one of the upstream-side guidance part and the downstream-side guidance part toward the other changes a length in the conveyance direction of a portion where the guidance regions overlap, and

plural points in a circumferential direction in each of the plural downstream-side guidance members constituting the downstream-side guidance part are fixed to the upstream-side guidance part, and plural points in a circumferential direction in each of the plural upstream-side guidance members constituting the upstream-side guidance part are fixed to the downstream-side guidance part;

wherein the guidance device further comprises:

a first fixing member fixed to portions of the plural upstream-side guidance members positioned on a downstream side in the conveyance direction, the first fixing member coupling the plural upstream-side guidance members and being slidably connected to the downstream-side guidance members; and

a second fixing member fixed to portions of the plural downstream-side guidance members positioned on an upstream side in the conveyance direction, the second fixing member coupling the plural downstream-side guidance members and being slidably connected to the upstream-side guidance members,

wherein the upstream-side guidance members are fixed to the downstream-side guidance members via the first fixing member and the second fixing member, to thereby fix the plural points in the circumferential direction of the upstream-side guidance members to the downstream-side guidance part, and

the downstream-side guidance members are fixed to the upstream-side guidance members via the first fixing member and the second fixing member, to thereby fix the plural points in the circumferential direction of the downstream-side guidance members to the upstream-side guidance part;

wherein plural through holes are formed in each of the first fixing member and the second fixing member, the plural through holes being moved along a moving direction when one of the guidance parts moves with respect to the other, and

each of the plural downstream-side guidance members is passed through each of the through holes in the first fixing member, and each of the plural upstream-side guidance members is passed through each of the through holes in the second fixing member.