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A control system for electric scissors

A control system and technology of electric scissors, applied in the direction of use feedback control, etc., can solve problems such as low safety factor, hidden safety hazards, and limited customer demand, and achieve the goals of avoiding hidden dangers, safe use, and efficient cutting work Effect

Inactive Publication Date: 2017-06-09
宁波市镇海长城汽车摩托车部件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, there is a limitation of this solution, that is, the microprocessor failure handling
When the microprocessor fails due to signal interference, it may issue a wrong command, that is, when the switch of the pruning shears is not pressed, the microprocessor sends a command to make the motor rotate, thereby driving the blade to perform cutting action , the misoperation of the electric scissors caused by this wrong command will very likely hurt the user, the safety factor is not high, and there is a great potential safety hazard. At the same time, the cutting mode is single, and the customer demand is not wide

Method used

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  • A control system for electric scissors
  • A control system for electric scissors
  • A control system for electric scissors

Examples

Experimental program
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Embodiment 1

[0021] refer to Figure 1 to Figure 3 As shown, it is an electric scissors applying the control system of the present invention. The electric scissors are driven by a motor 3 housed in the scissors main body. The motor 3 is connected with a reducer 31. The end of the rod 32 is connected with a connector 33 for driving the opening and closing angle of the scissors head 11. The electric scissors have two opening modes, a large opening and a small opening, and the switching of the opening mode of the scissors head is realized through a control system. The system includes a sensing device 4 for sensing the trigger position and a controller for receiving the sensing signal of the sensing device 4, wherein the sensing device 4 is a Hall travel plate 41 with a plurality of positions and cooperates with it A magnet 44 that can slide thereon, the magnet 44 is fixed on the magnet holder 43 in the trigger bracket 42, one end of the magnet holder 43 is fixedly connected with the return sp...

Embodiment 2

[0029] Such as Figure 4 As shown, as the second preferred embodiment of the present invention, the control system includes a servo frequency conversion processor, the input end of the servo frequency conversion processor is connected to a DC power supply, and the output end of the servo frequency conversion processor is connected to a three-phase AC servo motor. The servo frequency conversion processor is also connected with three control switches, which are start switch, forward rotation switch and reverse switch. The start switch is used to control the running state of the whole system. When the start switch is in the enable position, the system circuit is connected, and the DC The power supply inputs the DC voltage into the servo frequency conversion processor. After the servo frequency conversion process, the DC voltage is converted from DC input to AC output to drive the three-phase AC servo motor, so that the three phases of the three-phase AC servo motor start at the sa...

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Abstract

The invention discloses a control system for electric scissors, relates to the field of industrial control, and solves the problems of single cutting mode and relatively large potential safety hazards in the prior art. The control system includes a Hall sensor device for sensing the position of the trigger and a controller receiving the Hall signal of the Hall sensor device. The Hall sensor device includes a Hall travel plate with multiple positions and With the matching magnet, when the trigger drives the magnet to be in different positions, the Hall stroke plate senses the corresponding Hall signal, and inputs the Hall signal to the controller, and the controller outputs the corresponding control signal to control the rotation angle of the brushless motor And the direction of rotation, and then control the shearing action of the scissors head. This control system can realize the full range and half range opening of the cutter head of the electric scissors. It has the function of current limiting protection and pulls the trigger twice after the power is turned on. , the scissor head will be fully opened, reminding the user to start cutting work, avoiding potential safety hazards and making it safer to use.

Description

technical field [0001] The invention relates to the field of industrial control, in particular to an electric scissors control system capable of improving the safety factor of electric scissors and enabling switching of opening modes of scissor heads. Background technique [0002] As a category of electric tools, electric scissors include electric scissors for cutting thick fibers such as carpets, electric scissors for cutting cables, and electric scissors for pruning branches. These electric scissors usually consist of a fixed blade and a movable blade forming a cutting edge between the two blades. The movable blade swings back and forth under the forward and reverse drive of the motor, so that the knife edge is opened and closed continuously. In order to reduce accidents during use, electric scissors must meet the requirements of safety standards. Taking pruning shears for pruning branches as an example, the safety standard stipulates that once the switch is disconnected...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
Inventor 方培锵
Owner 宁波市镇海长城汽车摩托车部件厂
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