Guide position adjustment device, folder gluer and box making machine, and folding guide position adjustment method

A guide position adjustment device comprising:

• an upstream-side guide member and a downstream-side guide member which are mounted in pairs to right and left on a folder gluer that folds a corrugated cardboard sheet into a box while the corrugated cardboard sheet travels in a sheet traveling direction, and which are disposed in order from an upstream side in the sheet traveling direction,
• wherein
• the guide position adjustment device is mounted on a folding guide device provided with a frame moving mechanism for translating a supporting frame, which supports the upstream-side guide member and the downstream-side guide member, in a device width direction perpendicular to the sheet traveling direction by a first actuator,
• the upstream-side guide member includes at least an inlet-side tip regulation portion and an outlet-side tip regulation portion of the upstream-side guide member, among tip regulation portions that come into contact with a folded portion of the corrugated cardboard sheet, and
• the guide position adjustment device includes an outlet-side guide moving mechanism for moving the outlet-side tip regulation portion in the device width direction with respect to the supporting frame in an inner range from a position in the device width direction of the inlet-side tip regulation portion by a second actuator,
• the outlet-side guide moving mechanism includes
• a motor which is the second actuator and is mounted on the supporting frame, and
• a moving direction conversion mechanism for converting rotation of a rotary shaft of the motor into a moving direction in which the downstream-side end portion of the upstream-side guide member moves in the device width direction,
• the second actuator is a motor, the motor being mounted on the supporting frame and moving a downstream end of the outlet-side tip regulation portion in the device width direction via a bracket provided at the downstream end of the outlet-side tip regulation portion, and
• the moving direction conversion mechanism includes
• an oscillating member which is oscillatably supported by the supporting frame and is connected to the downstream-side end portion of the upstream-side guide member,
• a contact surface which is provided on the oscillating member, inclined in the device width direction with respect to the sheet traveling direction, and capable of coming into contact with a movable end portion of a moving member that moves in the sheet traveling direction in conjunction with movement of the second actuator, and
• a biasing member that presses the contact surface against the movable end portion.