CN102644193B - Electric shears - Google Patents
Electric shears Download PDFInfo
- Publication number
- CN102644193B CN102644193B CN201210146994.9A CN201210146994A CN102644193B CN 102644193 B CN102644193 B CN 102644193B CN 201210146994 A CN201210146994 A CN 201210146994A CN 102644193 B CN102644193 B CN 102644193B
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- Prior art keywords
- frame
- motor
- electric machine
- motor housing
- shears
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- 238000004804 winding Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Sawing (AREA)
Abstract
The present invention relates to a kind of electric shears, it comprises frame, cutting mechanism, body chassis three parts and electric machine control system, the frame lower that described body chassis is installed on, cutting mechanism comprises cutting disc and lower cutter, frame is provided with brushless electric machine shell, the armature coil winding of brushless electric machine is pasted onto in motor housing, armature spindle one end of brushless electric machine is installed in the bearing of motor housing tail end, the other end is arranged in the bearing in motor capping, armature spindle protrudes from frame disc, Hall element is installed on motor housing tail end outer end, cutting disc in cutting mechanism is directly installed on brushless electric motor rotor axle.The present invention is by carrying out electromechanical integration technology transformation to electric shears, not only enormously simplify the mechanism structure of electric shears, use and also become very convenient, compared with existing electric shears, the design makes the large and quality of the volume of electric shears also significantly reduce, and outward appearance also seems very graceful.
Description
Technical field
The present invention relates to a kind of electric shears, refer more particularly to a kind of hand miniature electric shears.
Background technology
Electric shears is that a kind of apparel industry is for conventional fabric dividing instrument.The electric shears used in the market, normally be made up of motor and knife rest, in order to realize the structural compactness of electric shears, motor becomes vertical stratification with knife bar usually, and motor steering carrys out cutting cloth by driven rotary cutterhead after worm and gear commutation.This electric shears has following defect: motor speed is high, and noise is large, and vibration is large, easily wear and tear, constantly apply oil, and worm and gear is core part, and assembly technology is complicated, pretty troublesome during replacing.In order to solve the technological deficiency of existing electric shears, Chinese invention patent 200910095605.2 discloses a kind of technical scheme of improvement of electric shears, its content is: " a kind of electric shears; it comprises motor rack, body chassis, frame, electric shears structure; described motor rack is equipped with brushless electric machine and drive pulley gear; described drive pulley gear at least comprises one group of drive and driving belt, driving belt transmission drive drives blade to rotate.Described drive is synchronizing wheel or belt pulley or articulated gear.Described driving belt is Timing Belt or belt or chain.Described drive pulley gear is by drive number of teeth speed change or by diameter pulley size speed change.The space of cutting fabric thickness is had after the height having blade to rotate after described motor rack is connected with frame and the blade shaft other end install drive." but, obviously also there is following defect in the enforcement of this technical scheme: one, and motor is installed in frame, transmits power by belt pulley.Owing to cutting out in cutter whole, the weight of motor is the major part of equipment, and therefore this design causes this cutter of cutting out to seem top-heavy, makes whole mechanical structure seem very heavy, causes operator to use inconvenience; Its two, when the rotating speed of blade needs adjustment, the drive number of teeth need be adjusted or by diameter pulley size, make it very inconvenient in use.
Summary of the invention
The object of this invention is to provide one cutting disc is directly installed on motor, and utilize electromechanical integration technology, realize the cutting machine of brushless electric machine low speed, the output of high torque power, solved the defect of existing electric (al) cutter.
The object of the invention is to be achieved through the following technical solutions: a kind of electric shears, it comprises frame, cutting mechanism, body chassis three parts and electric machine control system, described body chassis is installed on frame lower, described cutting mechanism comprises cutting disc and lower cutter, cutter is wherein descended to be installed on body chassis, described frame is provided with brushless electric machine shell, the armature coil winding of brushless electric machine is pasted onto in motor housing, permanent-magnet steel armature spindle one end of brushless electric machine is installed in the bearing of motor housing tail end, the other end is arranged on in the bearing in motor capping, brushless electric motor rotor aixs cylinder is for frame disc, Hall element is installed on motor housing tail end outer end, cutting disc in cutting mechanism is directly installed on brushless electric motor rotor axle, the end tail end of the motor housing in frame is provided with three spoke formula bearing supporting frames, the end of motor housing is made to reserve three louvres, bearing supporting frame installs Hall element outward, the inductive head of Hall element is corresponding with the magnetic field be arranged on on brushless electric motor rotor axle through louvre, it is characterized in that the motor housing outer end in frame is provided with control panel wire casing, electric machine control system is installed in the control panel wire casing in frame, is connected with the gauge tap be arranged on electric shears handle by wire.
Described electric machine control system is by MCU, drive circuit and amplifying circuit are formed, switching signal is established to detect at the P1.7 port of MCU, R2 is current-limiting resistance, when high level being detected, MCU output pulse width modulation signal, by drive circuit output pulse width voltage driven motor rotation, close when low level being detected and drive, motor shuts down, P1.6 port is that button detects, R1 is current-limiting resistance, when K1 touches conjunction, R1 provides a high level to MCU, trigger MCU to compare computing, motor speed signal according to hall sensor feedback is compared computing, the output pulse width modulation signal of adjustment drive circuit, thus make motor speed in the scope limited, carry out circulation adjustment.
The invention has the beneficial effects as follows: cutting disc is directly installed on the armature spindle of brushless electric machine, its rotating speed adjusts by electronics, motor control panel closely is installed on frame plate inside, like this, not only enormously simplify the mechanism structure of electric shears, by carrying out electromechanical integration technology transformation to electric shears, use and also become very convenient, compared with existing electric shears, the design makes the large and quality of the volume of electric shears also significantly reduce, and outward appearance also seems very graceful.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric shears;
Fig. 2 is the backsight structural representation of electric shears;
Fig. 3 is the side schematic appearance of electric shears;
Fig. 4 is the B-B place cross-sectional view of electric shears;
Fig. 5 is the rack construction schematic diagram of electric shears;
Fig. 6 is the speed control system structural representation of electric shears.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, description is remake to the present invention:
See Fig. 1, first the frame 2 of electric shears is as shown in Figure 5 obtained by aluminum essence casting mode, frame 2 is provided with the shell 22 of brushless electric machine, and the tail end of motor housing 22 establishes three width formula bearing supporting frames 20, makes the tail end of motor housing form three louvres 23.
The armature coil winding 10 of brushless electric machine is pasted onto in motor housing 22, the permanent-magnet steel armature spindle 5 of brushless electric machine is assigned in the middle of armature coil winding 9, its one end is installed in the bearing 41 of motor housing 22 tail end, the other end is arranged on in the bearing 42 in motor capping 6, brushless electric motor rotor axle 5 protrudes from frame 2 disc, Hall element 8 is installed on motor housing 22 tail end outer end, the inductive head of Hall element 8 is corresponding with the magnetic field on brushless electric motor rotor axle 5 through louvre 23, and so just in frame, direct-assembling has become brushless electric machine.
Frame 2 is also provided with control panel wire casing 21, and control panel wire casing 21 is positioned at the base portion of brushless electric machine.The control circuit of brushless electric machine is integrated on one piece of circuit control panel 10, and the output of this control circuit is connected with stator coil 9, and induction of signal circuit is connected with Hall element 8, and input is connected with power supply.Circuit control panel 10 is installed in the control panel wire casing 21 in frame 2, is connected with the gauge tap be arranged on electric shears handle 1 by wire.
After brushless electric machine and control circuit install, then it is closed with an outer cover.
Brushless electric motor rotor axle 5 protrudes from motor capping 6, and the cutting disc 71 in cutting mechanism is directly installed on brushless electric motor rotor axle 5.
Body chassis 3 is installed on the lower end of frame, and lower cutter 72 is installed on body chassis 3, and lower cutter 72 face protrudes from chassis, is close to cutting disc 71 side of rotor, forms shearing relation.
Electric shears handle is screwed in frame, is provided with through hole in frame and handle junction, and pilot is connected with the switch be arranged on handle through through hole.
Claims (2)
1. an electric shears, it comprises frame (2), cutting mechanism, body chassis (3) three parts and electric machine control system (10), described body chassis (3) is installed on frame (2) bottom, described cutting mechanism comprises cutting disc (71) and lower cutter (72), cutter (72) is wherein descended to be installed on body chassis (3), described frame (2) is provided with brushless electric machine shell (22), the armature coil winding of brushless electric machine is pasted onto in motor housing (22), permanent-magnet steel armature spindle (5) one end of brushless electric machine is installed in the bearing (41) of motor housing (22) tail end, the other end is arranged on in the bearing (42) in motor capping (6), brushless electric motor rotor axle (5) protrudes from frame (2) disc, Hall element (8) is installed on motor housing (22) tail end outer end, cutting disc (71) in cutting mechanism is directly installed on brushless electric motor rotor axle (5), the end tail end of the motor housing (22) in frame (2) is provided with three spoke formula bearing supporting frames (20), the end of motor housing (22) is made to reserve three louvres (23), bearing supporting frame installs Hall element (8) outward, the inductive head of Hall element (8) is corresponding with the magnetic field be arranged on brushless electric motor rotor axle (5) through louvre (23), it is characterized in that motor housing (22) outer end in frame (2) is provided with control panel wire casing (21), electric machine control system (10) is installed in the control panel wire casing (21) in frame (2), be connected with the gauge tap be arranged on electric shears handle (1) by wire.
2. electric shears as claimed in claim 1, be further characterized in that described electric machine control system (10) is by MCU, drive circuit and amplifying circuit are formed, switching signal is established to detect at the P1.7 port of MCU, R2 is current-limiting resistance, when high level being detected, MCU output pulse width modulation signal, by drive circuit output pulse width voltage driven motor rotation, close when low level being detected and drive, motor shuts down, P1.6 port is that button detects, R1 is current-limiting resistance, when K1 touches conjunction, R1 provides a high level to MCU, trigger MCU to compare computing, motor speed signal according to hall sensor feedback is compared computing, the output pulse width modulation signal of adjustment drive circuit, thus make motor speed in the scope limited, carry out circulation adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146994.9A CN102644193B (en) | 2012-05-14 | 2012-05-14 | Electric shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146994.9A CN102644193B (en) | 2012-05-14 | 2012-05-14 | Electric shears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102644193A CN102644193A (en) | 2012-08-22 |
| CN102644193B true CN102644193B (en) | 2015-10-28 |
Family
ID=46657257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210146994.9A Active CN102644193B (en) | 2012-05-14 | 2012-05-14 | Electric shears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644193B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764144B (en) * | 2020-06-19 | 2025-07-11 | 中山市天虹电机制造有限公司 | Electric cutting machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6131498A (en) * | 1995-01-31 | 2000-10-17 | Gerber Technology, Inc. | Reciprocating knife cutter, a cutting apparatus including such a cutter, and a knife sharpener for a cutting apparatus |
| CN200974936Y (en) * | 2006-11-28 | 2007-11-14 | 李德锵 | Strip clipper for numerical control fabric cutting machine |
| CN101363174A (en) * | 2007-08-08 | 2009-02-11 | 中山百川汇盈精密实业有限公司 | Knife head structure of wire shear driven by dc brushless external rotor electric machine |
| CN101367215A (en) * | 2008-10-09 | 2009-02-18 | 杭州柯瑞自动化技术有限公司 | Cutting head for high-speed low-layer cutting lathe |
| CN202107926U (en) * | 2011-05-07 | 2012-01-11 | 浙江乾麟缝制设备有限公司 | Electric cutting tool |
| CN202576990U (en) * | 2012-05-14 | 2012-12-05 | 浙江乾麟缝制设备有限公司 | Electric cutter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100639258B1 (en) * | 2006-04-03 | 2006-10-27 | 김상민 | Cutting machine |
-
2012
- 2012-05-14 CN CN201210146994.9A patent/CN102644193B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6131498A (en) * | 1995-01-31 | 2000-10-17 | Gerber Technology, Inc. | Reciprocating knife cutter, a cutting apparatus including such a cutter, and a knife sharpener for a cutting apparatus |
| CN200974936Y (en) * | 2006-11-28 | 2007-11-14 | 李德锵 | Strip clipper for numerical control fabric cutting machine |
| CN101363174A (en) * | 2007-08-08 | 2009-02-11 | 中山百川汇盈精密实业有限公司 | Knife head structure of wire shear driven by dc brushless external rotor electric machine |
| CN101367215A (en) * | 2008-10-09 | 2009-02-18 | 杭州柯瑞自动化技术有限公司 | Cutting head for high-speed low-layer cutting lathe |
| CN202107926U (en) * | 2011-05-07 | 2012-01-11 | 浙江乾麟缝制设备有限公司 | Electric cutting tool |
| CN202576990U (en) * | 2012-05-14 | 2012-12-05 | 浙江乾麟缝制设备有限公司 | Electric cutter |
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| Publication number | Publication date |
|---|---|
| CN102644193A (en) | 2012-08-22 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Denomination of invention: Electric cutting scissors Effective date of registration: 20210316 Granted publication date: 20151028 Pledgee: Industrial Commercial Bank of China Ltd. Lishui Liandu branch Pledgor: ZHEJIANG CHEERING SEWING MACHINE Co.,Ltd. Registration number: Y2021330000184 |