Next device

Abstract

To provide a bonding device capable of appropriately conveying sheets and bonding them together from immediately after the start of a bonding operation.SOLUTION: A bonding device comprises: an upper conveyance roller 4A for nipping a sheet between the upper conveyance roller and a lower conveyance roller; an auxiliary conveyance roller 4B disposed on the upstream side of the upper conveyance roller 41 in a conveyance direction; a support arm 40 for supporting the upper conveyance roller 4A and the auxiliary conveyance roller 4B; and an air cylinder 4F for switching a position of the support arm 40 between a first arm position and a second arm position. In a state where the support arm 40 is disposed at the first arm position, the auxiliary conveyance roller 4B is disposed on a first auxiliary position where the sheet is nipped between the auxiliary conveyance roller and an upper support part, and the upper conveyance roller 4A is disposed on a first upper conveyance position where the sheet is nipped between the upper conveyance roller and the lower conveyance roller. In a state where the support arm 40 is disposed on the second arm position, the auxiliary conveyance roller 4B is disposed on the first auxiliary position, and the upper conveyance roller 4A is disposed on a second upper conveyance position above the first upper conveyance position.SELECTED DRAWING: Figure 20

Claims

1. A conveying mechanism that conveys the sheet in the conveying direction, A nozzle having an outlet for dispensing adhesive between the stacked sheets, An upper support portion is provided upstream of the nozzle in the conveying direction and supports the upper portion of the stacked sheets from below. An adhesive device equipped with, The aforementioned transport mechanism is A lower conveying roller is provided downstream of the nozzle in the conveying direction, is rotatable about a rotation axis perpendicular to the conveying direction and the vertical direction, and contacts the sheet from below. An upper conveyor roller is rotatable about a rotation axis perpendicular to the conveying direction and the vertical direction, contacts the sheet from above, and sandwiches the sheet between itself and the lower conveyor roller, An auxiliary conveying roller is provided on the upstream side in the conveying direction relative to the upper conveying roller, and sandwiches the upper portion of the stacked sheets from above between itself and the upper support portion. The upper conveyor roller and the auxiliary conveyor roller are rotatably supported by a first support portion on one end, and a support arm portion is movable between a first arm position and a second arm position. An actuator that switches the support arm between the first arm position and the second arm position, Equipped with, With the support arm positioned at the first arm position, The auxiliary conveying roller is positioned in a first auxiliary position with the sheet sandwiched between it and the upper support, and the upper conveying roller is positioned in a first upper conveying position with the sheet sandwiched between it and the lower conveying roller. With the support arm positioned at the second arm position, The auxiliary conveying roller is positioned at the first auxiliary position, and the upper conveying roller is positioned at a second upper conveying position above the first upper conveying position. An adhesive device characterized by the following features.

2. The aforementioned transport mechanism is The roller unit is pivotably supported by the first support portion of the support arm and rotatably supports the upper conveyor roller and the auxiliary conveyor roller, The aforementioned upper conveyor roller is The roller unit is positioned in accordance with the movement of the support arm and the oscillation of the roller unit, either in the first upper transport position or the second upper transport position. The bonding apparatus according to feature 1.

3. The roller unit swings between the first unit position and the second unit position. With the support arm positioned at the first arm position and the roller unit positioned at the first unit position, the auxiliary transport roller is positioned at the first auxiliary position and the upper transport roller is positioned at the first upper transport position. With the support arm positioned at the second arm position and the roller unit positioned at the second unit position, the auxiliary transport roller is positioned at the first auxiliary position and the upper transport roller is positioned at the second upper transport position. The aforementioned transport mechanism is The bonding apparatus according to claim 2, further comprising a biasing member that biases the roller unit from the first unit position toward the second unit position.

4. The bonding apparatus according to claim 3, further comprising a stopper for restricting the oscillation of the roller unit from the first unit position to the second unit position.

5. The support arm is further movable to a third arm position. The actuator is capable of switching the support arm to the third arm position. With the support arm positioned at the third arm position, The bonding apparatus according to claim 1, characterized in that the auxiliary conveying roller is positioned at a second auxiliary position above the first auxiliary position, and the upper conveying roller is positioned at a third upper conveying position above the second upper conveying position.

6. The link mechanism comprises a first link and a second link provided on the upstream side of the first link in the transport direction. The first link mentioned above is, The first end, which is one end, is rotatably supported by the second support portion on the opposite end of the support arm, and the other end, which is the first other end, is rotatable around it. The second link mentioned above is, The second first end, which is one end, is rotatably supported by the portion of the support arm between the first support portion and the second support portion, and the other end, which is the other end, is rotatable around the second other end. When the upper conveying roller is in the first upper conveying position or the second upper conveying position, The second link extends upward from the second one end to the second other end, The first link extends such that its first end is located upstream and below its other end in the conveying direction. When the upper conveying roller is in the third upper conveying position, The second link extends such that the second one end is located downstream and below the second other end in the conveying direction. The bonding apparatus according to feature 5.

7. The aforementioned transport mechanism is The lower conveying roller is located at the downstream end in the conveying direction, and the cylindrical portion extends in the conveying direction, A housing that houses the lower drive unit that drives the lower transport roller and Equipped with, The storage section is provided on the upstream side of the cylindrical section in the transport direction, and supports the cylindrical section via a support shaft so that it can swing vertically. The bonding device according to claim 1, characterized in that the support shaft is provided in the housing portion.

8. The aforementioned transport mechanism is It has an upper conveying section that drives the upper conveying roller and the auxiliary conveying roller, The bonding apparatus according to claim 1, characterized in that the support arm supports the upper transport section.

9. The bonding apparatus according to claim 8, characterized in that the upper conveying section is driven such that the amount of the sheet fed by the upper conveying roller is equal to the amount of the sheet fed by the auxiliary conveying roller.

10. The bonding apparatus according to claim 1, characterized in that the actuator is an air cylinder extending in the conveying direction.

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