Article conveying device
First Claim
1. An article conveying device in which a plurality of rotary wheels each provided with a plurality of grippers gripping articles equidistantly in a circumferential direction are disposed and in each delivery position in which these rotary wheels are adjacent to each other, articles are delivered from grippers of an upstream side rotary wheel to grippers of a downstream side rotary wheel, comprising:
- retreating means switching the grippers provided at the downstream side rotary wheel between a use state in which the grippers receive articles from the upstream side rotary wheel and a retreat state in which the grippers do not interfere with the articles held by the upstream side rotary wheel; and
control means controlling the retreating means,wherein when said upstream side rotary wheel abnormally stops, said control means controls said retreating means to switch at least the grippers of the downstream side rotary wheel, which are located in said delivery position, from the use state to the retreat state to prevent the grippers of the downstream side rotary wheel and the articles gripped by the grippers of the upstream side rotary wheel from interfering with one another, androtation of the downstream side rotary wheel is continued to deliver the articles gripped by the grippers of the downstream side rotary wheel to a rotary wheel disposed further downstream.
2 Assignments
0 Petitions
Accused Products
Abstract
An upstream side wheel Ha including grippers B which do not perform opening and closing operations for themselves, and a downstream side wheel Hb including grippers A each having an opening and closing mechanism are included, and in a delivery position in which both the wheels are adjacent to each other, a plastic bottle 1 is delivered from the gripper B to the gripper A. Here, if the upstream side wheel or the downstream side wheel abnormally stops, control means controls retreating means C provided at the downstream side wheel to switch the grippers A to a retreat state from a use state to make an opening degree of a first and second grip members 23 and 24 of each of the grippers A larger than an opening degree of both the grip members in the use state. Thereby, interference of the plastic bottles gripped by the upstream side grippers and the first and second grip members can be prevented. Even if one of the wheels abnormally stops, the other wheel can be continuously operated without increasing the equipment in size.
20 Citations
6 Claims
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1. An article conveying device in which a plurality of rotary wheels each provided with a plurality of grippers gripping articles equidistantly in a circumferential direction are disposed and in each delivery position in which these rotary wheels are adjacent to each other, articles are delivered from grippers of an upstream side rotary wheel to grippers of a downstream side rotary wheel, comprising:
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retreating means switching the grippers provided at the downstream side rotary wheel between a use state in which the grippers receive articles from the upstream side rotary wheel and a retreat state in which the grippers do not interfere with the articles held by the upstream side rotary wheel; and control means controlling the retreating means, wherein when said upstream side rotary wheel abnormally stops, said control means controls said retreating means to switch at least the grippers of the downstream side rotary wheel, which are located in said delivery position, from the use state to the retreat state to prevent the grippers of the downstream side rotary wheel and the articles gripped by the grippers of the upstream side rotary wheel from interfering with one another, and rotation of the downstream side rotary wheel is continued to deliver the articles gripped by the grippers of the downstream side rotary wheel to a rotary wheel disposed further downstream. - View Dependent Claims (5, 6)
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2. An article conveying device in which a plurality of rotary wheels each provided with a plurality of grippers gripping articles equidistantly in a circumferential direction are disposed and in each delivery position in which these rotary wheels are adjacent to each another, articles are delivered from grippers of an upstream side rotary wheel to grippers of a downstream side rotary wheel, comprising:
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retreating means switching the grippers provided at the upstream side rotary wheel between a use state in which the grippers deliver articles to the downstream side rotary wheel and a retreat state in which the grippers do not interfere with the articles held by the downstream side rotary wheel; and control means controlling the retreating means, wherein when said upstream side rotary wheel abnormally stops, said control means controls said retreating means to switch at least the grippers of the upstream side rotary wheel, which are located in said delivery position, from the use state to the retreat state to prevent the grippers of the upstream side rotary wheel and the articles gripped by the grippers of the downstream side rotary wheel from interfering with one another, and rotation of the downstream side rotary wheel is continued to deliver the articles gripped by the grippers of the downstream side rotary wheel to a rotary wheel disposed further downstream.
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3. An article conveying device in which a plurality of rotary wheels each provided with a plurality of grippers gripping articles equidistantly in a circumferential direction are disposed and in each delivery position in which these rotary wheels are adjacent to each other, articles are delivered from grippers of an upstream side rotary wheel to grippers of a downstream side rotary wheel, comprising:
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retreating means switching the grippers provided at the downstream side rotary wheel between a use state in which the grippers receive articles from the upstream side rotary wheel and a retreat state in which the grippers do not interfere with the articles held by the upstream side rotary wheel; and control means controlling the retreating means; wherein when said downstream side rotary wheel abnormally stops, said control means controls said retreating means to switch at least the grippers of the downstream side rotary wheel, which are located in said delivery position, from the use state to the retreat state to prevent the grippers of the downstream side rotary wheel and the articles gripped by the grippers of the upstream side rotary wheel from interfering with one another, and rotation of the upstream side rotary wheel is continued, and the articles gripped by the grippers of the upstream side rotary wheel are collected by collecting means provided to collect the articles.
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4. An article conveying device in which a plurality of rotary wheels each provided with a plurality of grippers gripping articles equidistantly in a circumferential direction are disposed and in each delivery position in which these rotary wheels are adjacent to each another, articles are delivered from grippers of an upstream side rotary wheel to grippers of a downstream side rotary wheel, comprising:
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retreating means switching the grippers provided at the upstream side rotary wheel between a use state in which the grippers deliver articles to the downstream side rotary wheel and a retreat state in which the grippers do not interfere with the articles held by the downstream side rotary wheels; and control means controlling the retreating means, wherein when said downstream side rotary wheel abnormally stops, said control means controls said retreating means to switch at least the grippers of the upstream side rotary wheel which are located in said delivery position from the use state to the retreat state to prevent the grippers of the upstream side rotary wheel and the articles gripped by the grippers of the downstream side rotary wheel from interfering with one another, and rotation of the upstream side rotary wheel is continued, and the articles gripped by the grippers of the upstream side rotary wheel are collected by collecting means provided to collect the articles.
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Specification