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US 11,286,595 B2Granted
Control method of pattern loading for high speed double needle bar warp knitting machine
AssigneeJiangnan University
InventorsFenglin Xia, Gaoming Jiang, Qi Zhang, Aijun Zhang, Baoping Zheng, Ailan Wan
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Abstract
The disclosure discloses a control method of pattern loading for a high speed double needle bar warp knitting machine. Through disposing two or more than two high speed FIFO pattern data cache regions on a shog controller, a data read-write conversion function of each cache region continuously and automatically is respectively realized. Needle collision caused by guide bar shogging during pattern loading is avoided. Pattern loading steps of the double needle bar warp knitting machine are simplified; the work intensity is reduced; and the work reliability is improved.
Claims7
A method of using a control system of a warp knitting machine,
- the control system comprising:
- a shog controller, wherein the shog controller comprises at least two data cache regions;
- wherein when the control system carries out pattern loading, the control system is configured to calculate shogging plan data of a pattern according to machine main cam-shaft position information and the pattern, and the shogging plan data comprise data of a resetting curve required during pattern loading and data of a shogging curve of the pattern;
- wherein the shog controller is configured to load the pattern by writing the shogging plan data respectively into the at least two data cache regions;
- and
- wherein the shog controller is configured to send out a motion instruction to guide bar shog driving execution units of the warp knitting machine according to the shogging plan data in the at least two data cache regions;
- the method comprising:
- calculating the shogging plan data of the pattern according to the machine main cam-shaft position information and the pattern;
- loading the pattern by the shog controller by writing the shogging plan data respectively into the at least two data cache regions;
- and
- sending out the motion instruction by the shog controller to the shog driving execution units of the warp knitting machine according to the shogging plan data in the at least two data cache regions;
- wherein the calculating of the shogging plan data comprises using a warp knitting machine control computer to calculate the shogging plan data and to send the shogging plan data to the shog controller;
- and
- wherein the loading of the pattern by the shog controller comprises:
- writing, by the shog controller, the data of the resetting curve into a first data cache region of the at least two data cache regions, and writing the data of the shogging curve into a second data cache region of the at least two data cache regions.
12 more elements
A method of using a control system of a warp knitting machine,
- the control system comprising:
- a shog controller, wherein the shog controller comprises at least two data cache regions;
- wherein when the control system carries out pattern loading, the control system is configured to calculate shogging plan data of a pattern according to machine main cam-shaft position information and the pattern, and the shogging plan data comprise data of a resetting curve required during pattern loading and data of a shogging curve of the pattern;
- wherein the shog controller is configured to load the pattern by writing the shogging plan data respectively into the at least two data cache regions;
- and
- wherein the shog controller is configured to send out a motion instruction to guide bar shog driving execution units of the warp knitting machine according to the shogging plan data in the at least two data cache regions;
- the method comprising:
- calculating the shogging plan data of the pattern according to the machine main cam-shaft position information and the pattern;
- loading the pattern by the shog controller by writing the shogging plan data respectively into the at least two data cache regions;
- and
- sending out the motion instruction by the shog controller to the shog driving execution units of the warp knitting machine according to the shogging plan data in the at least two data cache regions;
- wherein the calculating of the shogging plan data comprises:
- reading the machine main cam-shaft position information by the shog controller, wherein the main cam-shaft position information comprises a current position of each guide bar of the warp knitting machine;
- sending data of the pattern by the control system to the shog controller, wherein the data of the pattern comprise a starting course position for the pattern;
- calculating, by the shog controller, amounts of transverse movement of the guide bars according to current positions thereof and the starting course position for the pattern, generating the data of the resetting curve according to a lapping interval allowed given by the control system and guide bar shogging rule requirements, and then, writing the data of the resetting curve into a first data cache region of the at least two data cache regions;
- and
- calculating the data of the shogging curve by the shog controller according to the pattern, and writing the data of the shogging curve into a second data cache region of the at least two data cache regions.
14 more elements
Dependencies are inferred from the claim text.