Automatic inspection device for corrugated paperboard machine, and corrugated paperboard machine
First Claim
1. An automatic inspection device for a corrugated paperboard machine having a tool moving mechanism, the tool moving mechanism comprising a plurality of movable members each coupled to a respective one of a plurality of machining tools for subjecting a corrugated paperboard to machining;
- a support member movably supporting the plurality of movable members; and
a plurality of drive motors for moving respective ones of the plurality of movable members along the support member, the automatic inspection device comprising;
a position setting section for setting the plurality of movable members to positions located within a plurality of ranges of motion, wherein each range of motion is defined along the support member, each moving member corresponding to a respective one of the plurality of movable members;
a control section for driving each of the plurality of drive motors at a given rotational speed so as to allow a respective one of the plurality of movable members to be moved within a corresponding one of the plurality of ranges of motion;
a current detection section for detecting a drive current being supplied to each of the plurality of drive motors when each of the plurality of drive motors is driven at the given rotational speed by the control section;
a current determination section for determining whether or not the drive current of each of the plurality of drive motors detected by the current detection section exceeds a given threshold; and
a defect detection section configured to detect that a defect, caused by paper powder scattered and accumulated during cutting a corrugated paperboard, occurs in the movable member driven by a specific one of the plurality of drive motors, or in a portion of the support member corresponding to the range of motion of the movable member driven by the specific one of the plurality of drive motors, the defect detection section being configured to detect said defect based exclusively on a determination of the current determination section, that the drive current of the specific one of the plurality of drive motors exceeds the given threshold;
wherein the plurality of ranges of motion are defined along the support member in adjacent relation to each other;
the position setting section is operable to position each of the plurality of movable members at its initial position defined in a vicinity of an end position of a corresponding one of the plurality of ranges of motion in a given direction along the support member; and
the control section is operable to drive the plurality of drive motors so as to allow the plurality of movable members to be moved individually from their initial positions in a same direction;
wherein the automatic inspection device further comprises a current value storage section for, during a course where the plurality of movable members are moved individually from their initial positions in the same direction, sequentially storing a value of the drive current of each of the plurality of drive motors detected by the current detection section, in correlated relation with a position of the movable member moved by each of the plurality of drive motors.
1 Assignment
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Accused Products
Abstract
An automatic inspection device for a corrugated paperboard machine includes comprises a position setting section for setting movable members to positions within moving ranges; a control section for driving each of the drive motors at a given rotational speed so as to allow a respective one of the movable members to be moved within a corresponding one of the moving ranges; a current detection section for detecting a drive current being supplied to each of the drive motors when the drive motor is driven at the given rotational speed; and a current determination section for determining whether the drive current of each of the drive motors exceeds a given threshold. The automatic inspection device is configured to, when the current determination section determines that the drive current of a specific one of the plurality of drive motors exceeds the given threshold, detecting that a defect occurs in the movable member.
9 Citations
9 Claims
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1. An automatic inspection device for a corrugated paperboard machine having a tool moving mechanism, the tool moving mechanism comprising a plurality of movable members each coupled to a respective one of a plurality of machining tools for subjecting a corrugated paperboard to machining;
- a support member movably supporting the plurality of movable members; and
a plurality of drive motors for moving respective ones of the plurality of movable members along the support member, the automatic inspection device comprising;a position setting section for setting the plurality of movable members to positions located within a plurality of ranges of motion, wherein each range of motion is defined along the support member, each moving member corresponding to a respective one of the plurality of movable members; a control section for driving each of the plurality of drive motors at a given rotational speed so as to allow a respective one of the plurality of movable members to be moved within a corresponding one of the plurality of ranges of motion; a current detection section for detecting a drive current being supplied to each of the plurality of drive motors when each of the plurality of drive motors is driven at the given rotational speed by the control section; a current determination section for determining whether or not the drive current of each of the plurality of drive motors detected by the current detection section exceeds a given threshold; and a defect detection section configured to detect that a defect, caused by paper powder scattered and accumulated during cutting a corrugated paperboard, occurs in the movable member driven by a specific one of the plurality of drive motors, or in a portion of the support member corresponding to the range of motion of the movable member driven by the specific one of the plurality of drive motors, the defect detection section being configured to detect said defect based exclusively on a determination of the current determination section, that the drive current of the specific one of the plurality of drive motors exceeds the given threshold; wherein the plurality of ranges of motion are defined along the support member in adjacent relation to each other; the position setting section is operable to position each of the plurality of movable members at its initial position defined in a vicinity of an end position of a corresponding one of the plurality of ranges of motion in a given direction along the support member; and the control section is operable to drive the plurality of drive motors so as to allow the plurality of movable members to be moved individually from their initial positions in a same direction; wherein the automatic inspection device further comprises a current value storage section for, during a course where the plurality of movable members are moved individually from their initial positions in the same direction, sequentially storing a value of the drive current of each of the plurality of drive motors detected by the current detection section, in correlated relation with a position of the movable member moved by each of the plurality of drive motors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a support member movably supporting the plurality of movable members; and
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8. A corrugated paperboard machine comprising:
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a plurality of machining tools for subjecting a corrugated paperboard to machining; a tool moving mechanism including a plurality of movable members each coupled to a respective one of the plurality of machining tools, a support member movably supporting the plurality of movable members, and a plurality of drive motors for moving respective ones of the plurality of movable members along the support member; a mode setting section for setting an inspection mode; a position setting section for, when the inspection mode is set, setting the plurality of movable members to positions located within a plurality of ranges of motion, each range of motion being defined along the support member, each moving member corresponding to a respective one of the plurality of movable members; a control section for, when the inspection mode is set, driving each of the plurality of drive motors at a given rotational speed so as to allow a respective one of the plurality of movable members to be moved within a corresponding one of the plurality of ranges of motion; a current detection section for detecting a drive current being supplied to each of the plurality of drive motors when each of the plurality of drive motors is driven at the given rotational speed by the control section; a current determination section for determining whether or not the drive current of each of the plurality of drive motors detected by the current detection section exceeds a given threshold; and a defect detection section configured to detect that a defect, caused by paper powder scattered and accumulated during cutting a corrugated paperboard, occurs in the movable member driven by a specific one of the plurality of drive motors, or in a portion of the support member corresponding to the range of motion of the movable member driven by the specific one of the plurality of drive motors, the defect detection section being configured to detect said defect based exclusively on a determination of the current determination section, that the drive current of the specific one of the plurality of drive motors exceeds the given threshold; wherein the plurality of ranges of motion are defined along the support member in adjacent relation to each other; the position setting section is operable to position each of the plurality of movable members at its initial position defined in a vicinity of an end position of a corresponding one of the plurality of ranges of motion in a given direction along the support member; and the control section is operable to drive the plurality of drive motors so as to allow the plurality of movable members to be moved individually from their initial positions in a same direction; wherein the automatic inspection device further comprises a current value storage section for, during a course where the plurality of movable members are moved individually from their initial positions in the same direction, sequentially storing a value of the drive current of each of the plurality of drive motors detected by the current detection section, in correlated relation with a position of the movable member moved by each of the plurality of drive motors.
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9. An automatic inspection device for a corrugated paperboard machine having a plurality of tool moving mechanisms, each of the tool moving mechanisms comprising a movable member coupled to a tool for subjecting a corrugated paperboard to machining or operation;
- a support member movably supporting the movable member; and
a drive motor for moving either one of the movable member and support member so as to move the movable member along the support member, the automatic inspection device comprising;a control section for driving the drive motor in each of the plurality of tool moving mechanisms, at a given rotational speed; a current detection section for detecting a drive current being supplied to each of the drive motors in the plurality of tool moving mechanisms when said drive motor is driven at the given rotational speed by the control section; a current determination section for determining whether or not the drive current of each of the drive motors detected by the current detection section exceeds a given threshold; and a defect detection section configured to detect that a defect, caused by paper powder scattered and accumulated during cutting a corrugated paperboard, occurs in the movable member driven by one of the drive motors, or in the support member supporting the movable member driven by the one of the drive motors, the defect detection section being configured to detect said defect based exclusively on a determination of the current determination section, that the drive current of the one of the drive motors exceeds the given threshold; wherein the plurality of ranges of motion are defined along the support member in adjacent relation to each other; the position setting section is operable to position each of the plurality of movable members at its initial position defined in a vicinity of an end position of a corresponding one of the plurality of ranges of motion in a given direction along the support member; and the control section is operable to drive the plurality of drive motors so as to allow the plurality of movable members to be moved individually from their initial positions in a same direction; wherein the automatic inspection device further comprises a current value storage section for, during a course where the plurality of movable members are moved individually from their initial positions in the same direction, sequentially storing a value of the drive current of each of the plurality of drive motors detected by the current detection section, in correlated relation with a position of the movable member moved by each of the plurality of drive motors.
- a support member movably supporting the movable member; and
Specification