A synchronous tractor control signal conversion interface
A technology for converting interfaces and control signals, which is applied in the direction of connection, parts of connection devices, coupling devices, etc., which can solve problems such as failure to lift in time, decline in processing quality, and inability to directly obtain synchronous tractors, etc., to achieve convenient and reliable installation High performance and reasonable structure
Inactive Publication Date: 2019-06-21
AVIC SHANGHAI AERONAUTICAL MEASUREMENT CONTROLLING RES INST
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
With the continuous upgrading of industrial sewing machines, the original linkage control signal, especially after the sewing machine back stitching operation is driven by the pulse signal of the stepping motor, the synchronous tractor cannot directly obtain it.
When the sewing machine is back stitching, the pressing wheel of the synchronous tractor cannot be lifted in time, causing the rotation direction of the synchronous wheel to be opposite to the direction of fabric conveying, resulting in a decrease in processing quality
Method used
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Embodiment Construction
[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] Such as figure 1 , figure 2 As shown, a synchronous tractor control signal conversion interface includes a housing 11, a housing cover 14, a bridge output port 2, a synchronous tractor input port 9, a bridge input port 12, conversion interface output wires 8, 10 and a circuit board 4 , the circuit board 4 is fixed on the housing 11 by screws 3, and the circuit board 4 includes an integrated circuit 5 and a potentiometer 6
[0019] The shell 11 is made of aluminum alloy, and the shell cover 14 is also made of aluminum alloy. The shell 11 and the shell cover 14 are fixed by screws 15 .
[0020] The bridging output port 2 and the bridging input port 12 are located on the housing end face of the shell 11, and the bridging output port 2 and the bridging input port 12 adopt the same model connector socket as the industrial sewing machine r...
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The invention discloses a synchronous tractor control signal conversion interface which comprises a bridge output port, a conversion interface output wire, a bridge input port and a circuit board. Thecircuit board comprises an integrated circuit and a potentiometer. The bridge input port and the bridge output port are used for the bridge connection of a sewing machine reversing stitch interface socket and plug. During the bridge process, a DC power supply and reversing pin control level are introduced into the circuit board, and the reversing pin control level is sent to an inverting input terminal of the integrated circuit. The integrated circuit is used for comparing the comparing the sewing machine reversing pin control level and reference voltage and outputting a comparison result toa synchronous traction machine through the output wire to be a control signal of an electromagnet lifting mechanism. According to the synchronous tractor control signal conversion interface, the control signal which controls the electromagnet lifting mechanism is provided for the synchronous traction machine, thus a cloth pressing synchronous wheel of the synchronous traction machine can be raisedor lowered in time according to the reversing stitch control.
Description
technical field [0001] The present invention and the field of automatic sewing machines, in particular, relate to a control signal conversion interface of a synchronous tractor, which is used to provide a control signal for controlling the electromagnet lifting mechanism to the synchronous tractor. Background technique [0002] At present, the synchronous traction machine is mainly composed of machine base, gearbox, electromagnet lifting mechanism, cloth pressing synchronous wheel, electric control box, etc. Through synchronous linkage with industrial sewing machines, it can maintain synchronous traction sewing work with the upper and lower fabrics of the sewing machine, so as to improve work efficiency. Guarantee the purpose of processing quality. With the continuous upgrading of industrial sewing machines, the original linkage control signal, especially after the sewing machine back stitch operation is driven by the pulse signal of the stepper motor, the synchronous tracto...
Claims
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IPC IPC(8): H01R31/06H01R13/66H01R13/717H01R13/512
CPCH01R13/512H01R13/6616H01R13/665H01R13/717H01R31/065
Inventor 王锦良陈佳
Owner AVIC SHANGHAI AERONAUTICAL MEASUREMENT CONTROLLING RES INST