CN2744487Y

CN2744487Y - Thread trimmer cutter head with electronic eye control

Info

Publication number: CN2744487Y
Application number: CN 200420095358
Authority: CN
Inventors: 谢新伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-12
Filing date: 2004-11-12
Publication date: 2005-12-07
Anticipated expiration: 2014-11-12

Abstract

The utility model discloses a thread trimmer cutter head with electronic eye control, comprising a cutter head assembly 1, an electrical motor 2 of a drive cutter head, a photoelectric sensor 7 and a controller 3. The photoelectric sensor 7 is arranged on the cutter head assembly 1. The signal output terminal of the photoelectric sensor 7 is connected with the signal input terminal of the controller 3. The controller 3 is positioned between and connected with a mains supply 4 and the electrical motor 2 of the drive cutter head so as to control the power-on and power-off between the mains supply 4 and the electrical motor 2 of the drive cutter head. The utility model can monitor whether the personnel leaves the cutter head assembly or not through the photoelectric sensor. When the personnel leaves, the electric source of the thread trimmer cutter head is automatically closed, so that the thread trimmer cutter head stops working, which can reduce the abrasions, extend the operating life and save the electric energy.

Description

The wire cutting machine tool bit of band electronic eyes control

1, technical field:

The utility model relates to the wire cutting machine tool bit of band electronic eyes control.

2, background technology:

At present, wire cutting machine tool bit is by motor-driven, just turn on the power switch and to make wire cutting machine tool bit work, but often leaving its work position, some workmans or operator forget power-off wire cutting machine tool bit, cause the wire cutting machine tool bit work of not stopping work, What is more forgets when coming off duty wire cutting machine tool bit closed and causes it the whole night in work, thereby make the blade abrasion that causes the wire cutting machine tool bit the inside serious, because the blade of wire cutting machine tool bit the inside is important and is expensive part, therefore blade abrasion brings following harm after serious: first can influence operate as normal, second can increase the cost of payment, and the 3rd can the waste electric energy.

3, summary of the invention:

In order to overcome the deficiencies in the prior art, the purpose of this utility model provides the wire cutting machine tool bit of band electronic eyes control, when the staff leaves, closes the power supply of wire cutting machine tool bit at once automatically, makes it to quit work, and reduces wear, and prolongs its working life.

The utility model is achieved by the following technical solution: the motor that comprises cutter head assembly and driving cutter head, it also comprises photoelectric sensor and controller in addition, photoelectric sensor is installed on the cutter head assembly, the signal output part of photoelectric sensor connects the signal input part of controller, is connecting controller between the motor of mains supply and driving cutter head with the power on/off between the motor of control mains supply and driving cutter head.

Above-mentioned described controller comprises transformation regulator rectifier circuit and switching power circuit, the input of transformation regulator rectifier circuit connects mains supply, the output of transformation regulator rectifier circuit is pressed for photoelectric sensor, switching power circuit provide galvanic current, and the output control of switching power circuit drives the power on/off of the motor of cutter head

The utility model compared with prior art has following advantage: it whether from cutter head assembly, when the staff leaves, closes the power supply of wire cutting machine tool bit at once by detecting sensor monitoring personnel automatically, make it to quit work, reduce wear, prolong its working life, simultaneously saves energy.

4, description of drawings:

Below in conjunction with accompanying drawing the utility model is done detailed explanation:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a circuit block diagram of the present utility model;

Fig. 3 is the circuit diagram of Fig. 2 correspondence.

5, the specific embodiment:

As shown in Figure 1 and Figure 2, the utility model comprises cutter head assembly 1 and drives the motor 2 of cutter head, it also comprises photoelectric sensor 7 and controller 3 in addition, photoelectric sensor 7 is installed on the cutter head assembly 1, the signal output part of photoelectric sensor 7 connects the signal input part of controller 3, is connecting controller 3 between the motor 2 of mains supply 4 and driving cutter head with the power on/off between the motor 2 of control mains supply 4 and driving cutter head.Controller 3 comprises transformation regulator rectifier circuit 5 and switching power circuit 6, the input of transformation regulator rectifier circuit 5 connects mains supply 4, the output of transformation regulator rectifier circuit 5 is pressed for photoelectric sensor 7, switching power circuit 6 provide galvanic current, and the output control of switching power circuit 6 drives the power on/off of the motor 2 of cutter head.

Operation principle of the present utility model is: as shown in Figure 3, the mains supply 4 of 220V is exported the 12V DC voltages through transformation regulator rectifier circuit 5: transformation regulator rectifier circuit 5 comprises transformer B, rectifying tube TD and voltage-stabiliser tube L7805; Photoelectric sensor 7 comprises two pipe D1, D2, D3, resistance R 7, R8, UP etc.; Controller 3 comprises triode Q1, Q2, Q3, Q4, resistance R 1, R2, R3, R4, diode (LED) H, LEDO, capacitor C 4, C5 and relay J QC.Before the staff stands in cutter head assembly 1, photoelectric sensor 7 comprises that the light that two pipe D1, D2 send receives conducting by D3 after the people is reflected, the Q1 base stage obtains low level makes Q1, the Q2 all can not conducting, and at this moment the Q3 base stage obtains the high level conducting, making the Q4 base stage obtain low level makes Q4, the Q5 all can not conducting, relay J QC outage makes the switch JQCK closure that connects the motor 2 that drives cutter head, thereby makes motor 2 work that drive cutter head; When the staff leaves cutter head assembly 1, D3 does not receive reflection ray and ends, the Q1 base stage obtains high level and makes Q1, Q2 conducting, the Q3 base stage obtains low level and ends, make the Q4 base stage obtain high level and make Q4, Q5 conducting, relay J QC energising gauge tap JQCK disconnects, and motor 2 outages that drive cutter head are quit work.

Claims

1, the wire cutting machine tool bit of band electronic eyes control, the motor (2) that comprises cutter head assembly (1) and driving cutter head, it is characterized in that it also comprises photoelectric sensor (7) and controller (3), photoelectric sensor (7) is installed on the cutter head assembly (1), the signal output part of photoelectric sensor (7) connects the signal input part of controller (3), is connecting controller (3) between the motor (2) of mains supply (4) and driving cutter head with the power on/off between the motor (2) of control mains supply (4) and driving cutter head.

2, the wire cutting machine tool bit of controlling according to the described band electronic eyes of claim 1, it is characterized in that controller (3) comprises transformation regulator rectifier circuit (5) and switching power circuit (6), the input of transformation regulator rectifier circuit (5) connects mains supply (4), the output of transformation regulator rectifier circuit (5) is that photoelectric sensor (7), switching power circuit (6) provide galvanic current to press, and the output control of switching power circuit (6) drives the power on/off of the motor (2) of cutter head.