Control device for driving motor
A technology of a motor and a saw blade is applied in the control technology field of adjusting the rotation direction of the motor, and can solve the problems of inconvenience, laborious operation, long time consumption, etc.
Inactive Publication Date: 2010-07-21
REXON IND CORP LTD
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Problems solved by technology
[0002] Among the known woodworking machines, taking the table saw machine as an example, except that the saw blade is driven by an electric motor, other operations, such as the adjustment of the cutting height of the saw blade or the adjustment of the cutting angle of the saw blade, are all manually operated. , this kind of adjustment method is generally by rotating a hand wheel located outside the table saw machine, one end of which is connected to the center of the hand wheel in conjunction with the screw rod, and then drives a screw screwed with the screw rod and connected to the saw blade The saw blade base is used to move the saw blade synchronously, but this kind of mechanical mechanism is laborious in operation, and it takes a long time to adjust the saw blade to the position, which is not convenient enough
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[0054] As shown in FIG. 1, the first preferred embodiment of the present invention provides a control device 10 for driving an adjusting motor 61. The adjusting motor 61 is driven by DC current and has a rotating shaft and two power terminals 62, 64. , the control device 10 is mainly composed of a switching device 21, a first circuit 23, a second circuit 26, a third circuit 29, a fourth circuit 30, a first operation switch 31, a power supply module 41 and a first Two operation switches 51 are formed, wherein:
[0055] This switching device 21 has a first, a second normally closed switch 24,25, and a first, a second normally open switch 27,28, and has the ability of switching these switches, generally utilizes a processor or A conduction control coil 22 is used to complete the switching task. In this embodiment, the switching device 21 is described using the conduction control coil 22 as an example, that is, the switching device 21 is a relay 21 .
[0056]The power supply modu...
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The invention discloses a control device in use for driving an adjustment motor. A direct current drives the motor. The control device includes following parts: a switching unit possesses a first normal close switch, a second normal close switch, a first normal open switch, and a second normal open switch; a power supply module for providing DC power source; a first operation switch, when the first operation switch is in short circuit, the two normal close switches turn to open circuit, and the two normal open switches turn to short circuit, thus, the driven adjustment motor rotates in first direction; a second operation switch is in use for driving the adjustment motor rotating in second direction, which is opposite to first direction. Features are: simple circuit architecture controls rotating direction of the adjustment motor.
Description
technical field [0001] The present invention relates to a control device for driving an adjusting motor, in particular to a control technology for the rotating direction of the adjusting motor. Background technique [0002] Among the known woodworking machines, taking the table saw machine as an example, except that the saw blade is driven by an electric motor, other operations, such as the adjustment of the cutting height of the saw blade or the adjustment of the cutting angle of the saw blade, are all manually operated. , this kind of adjustment method is generally by rotating a hand wheel located outside the table saw machine, one end of which is connected to the center of the hand wheel in conjunction with the screw rod, and then drives a screw screwed with the screw rod and connected to the saw blade The saw blade base is used to move the saw blade synchronously, but this kind of mechanical mechanism is laborious in operation, and it takes a long time to adjust the saw ...
Claims
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IPC IPC(8): H02P23/00H02P27/06H02P25/18
Inventor 张言志
Owner REXON IND CORP LTD