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US 12,129,584 B2Granted
Operation information acquisition device, operation information acquisition method, and operation information collection system
AssigneeJuki Corporation
InventorsKazuyuki Ishihara, Keiji Wada
Life of this patent
Estimating the term…
Abstract
The operation information acquisition device includes the external detection device which is provided on the outer side of the main body frame of the sewing machine and detects the state change of the operating member that performs the periodic operation at the same cycle as the up-down movement operation of the sewing needle, the operation information acquisition device acquires operation information based on detection result of the external detection device. The operation information acquisition device can acquire the operation information such as the “number of stitches”, the “operating hours”, the “sewing speed”, and the “number of times of thread cutting”.
Claims16
An operation information acquisition device comprising:
- an external detection device that is provided on an outer side of a main body frame of a sewing machine and detects a state change of an operating member that performs a periodic operation at a same cycle as an up-down movement operation of a sewing needle;
- and
- a controller that executes processing or control for acquiring predetermined detection information,
- wherein the sewing machine includes:
- a main shaft motor;
- a main shaft that is rotationally driven by the main shaft motor;
- a needle bar and the sewing needle that reciprocate and move up and down by obtaining power from the main shaft;
- the operating member that performs the periodic operation at the same cycle as the up-down movement operation of the sewing needle;
- and
- a photoelectronic sensor that detects the periodic operation of the operating member,
- wherein the controller detects a rising edge from an output of the photoelectronic sensor and monitors whether a next rising edge is detected within a stop determination time,
- wherein in a case where the next rising edge is detected within the stop determination time, the controller determines that the main shaft motor and the main shaft are rotating, and continues to monitor whether the next rising edge is detected within the stop determination time,
- wherein in a case where the next rising edge is not detected within the stop determination time, the controller determines that the main shaft motor and the main shaft are stopped, and
- wherein the operation information acquisition device acquires operation information based on detection result of the external detection device.
11 more elements
An operation information acquisition method comprising:
- acquiring operation information from an operating member that performs a periodic operation at a same cycle as an up-down movement operation of a sewing needle, on an outer side of a main body frame of a sewing machine,
- wherein the sewing machine includes:
- a main shaft motor;
- a main shaft that is rotationally driven by the main shaft motor;
- a needle bar and the sewing needle that reciprocate and move up and down by obtaining power from the main shaft;
- the operating member that performs the periodic operation at the same cycle as the up-down movement operation of the sewing needle;
- and
- a photoelectronic sensor that detects the periodic operation of the operating member,
- wherein the operation information acquisition method further comprising:
- detecting a rising edge from an output of the photoelectronic sensor and monitoring whether a next rising edge is detected within a stop determination time,
- determining that the main shaft motor and the main shaft are rotating in a case where the next rising edge is detected within the stop determination time, and continuing to monitor whether the next rising edge is detected within the stop determination time, and
- determining that the main shaft motor and the main shaft are stopped in a case where the next rising edge is not detected within the stop determination time.
9 more elements
An operation information collection system that collects operation information from a plurality of sewing machines, comprising:
- an external detection device that is provided on an outer side of a main body frame of a sewing machine and detects a state change of an operating member that performs a periodic operation at a same cycle as an up-down movement operation of a sewing needle, the external detection device provided to some or all of the plurality of sewing machines;
- and
- a controller that executes processing or control for acquiring predetermined detection information,
- wherein each sewing machine of the plurality of sewing machines includes:
- a main shaft motor;
- a main shaft that is rotationally driven by the main shaft motor;
- a needle bar and the sewing needle that reciprocate and move up and down by obtaining power from the main shaft;
- the operating member that performs the periodic operation at the same cycle as the up-down movement operation of the sewing needle;
- and
- a photoelectronic sensor that detects the periodic operation of the operating member,
- wherein the controller detects a rising edge from an output of the photoelectronic sensor and monitors whether a next rising edge is detected within a stop determination time,
- wherein in a case where the next rising edge is detected within the stop determination time, the controller determines that the main shaft motor and the main shaft are rotating, and continues to monitor whether the next rising edge is detected within the stop determination time,
- wherein in a case where the next rising edge is not detected within the stop determination time, the controller determines that the main shaft motor and the main shaft are stopped, and
- wherein the operation information collection system acquires the operation information based on detection result of each external detection device provided to some or all of the plurality of sewing machines.
11 more elements
Dependencies are inferred from the claim text.