Summary of the invention:
In order to overcome the defective that existing button-sewing machine does not have safety and sighting device and can't accurately control the nail catcher impulse force, the invention provides a kind of Pneumatic button sewing machine, this Pneumatic button sewing machine not only is provided with safety device and sighting device, and the adjustable solar term of the required impulse force of nail catcher are compressed into row control.
The technical solution adopted for the present invention to solve the technical problems is: adopt machinery and circuit two parts way of combining, mechanical part is made of body, cylinder, piston, working shaft, platform, following punch die, electric cabinet, air gauge, support, foot-operated nine parts of inductive switch.Body is installed on the platform, the stent support platform, support is fixedlyed connected with platform by bolt, foot-operated inductive switch places the floor and is connected with electric cabinet by lead, above-mentioned body top has installed and fixed a cylinder, cylinder is established high-end air inlet and low side air inlet, the diameter of these two portings is 2-6mm, piston in combination is installed in the cylinder, this piston central authorities are fixedly connected working shaft, establish keyway in the working shaft, hexahedron is processed in the lower end, the other end of working shaft is that lower end can flexibly connect various required upper punch.Also have a following punch die to be installed on the platform.Past down stroke 3.5cm when working shaft drives the upper punch nail catcher.
Circuit is by the input of 220V AC power, and one the tunnel through switch J
1To the rectification of KBPC2510 bridge heap (also is A
C, V-and A
C, V+) after, be that actuating coil supplies with dc source.One the tunnel through capacitor C
1, piezo-resistance R
VEnter transformer E
13Transformation is by D
15, D
16, D
17, D
18After four diodes are formed bridge rectifiers, the direct relay (V in the supply safety guard on one side
CC) working power, Yi Bian through IC
1The voltage stabilizing of LM7812 circuit of three-terminal voltage-stabilizing integrated obtains the 12V direct current, is IC
2CD4541 programmable timer digital integrated electronic circuit, IC
3CD4013 double D trigger integrated circuit, IC
4MC14093 " four tunnel-2 input nand gate " integrated circuit, IC
5CD4017 scale of ten circuit integrated circuit, IC
6The CD40110=-decimal system counts/latchs/power supplies such as 7 sections decoding/driver ICs, radium-shine circuit, digital amounts are shown, power driving circuit.
1, by double D trigger CD4013, the monostable time delay circuit formed of trigger 1 wherein, the 1 pin (Q of CD4013
1) when stable state low level.After opening operating switch K, 3 pin (CP1) end is triggered by the positive pulse rising edge, data terminal 5 pin (D
1) high level send output Q to
1, Q
1Current potential uprises, and (sends IC simultaneously to
2CD4541 the 6th pin), circuit enters monostability, Q
1When current potential uprises, capacitor C
9Through resistance R
4With potentiometer RP charging, work as C
9Both end voltage is charged to R
1During clear 0 threshold level, Q
1Recover electronegative potential, monostable finishes (while IC
2CD4541 the 6th pin becomes electronegative potential), after monostable finishes, Q
1Become low level, capacitor C
9Through diode D
2And resistance R
5Discharge is ready for work next time rapidly.
2, IC
2CD4541 programmable Timer integrated circuit, 9 pin connect power supply, and 10 pin ground connection constitute time-delay and close circuit, and delay time is by 1,2,3 pin outer meeting resistance R2, R3, capacitor C
8Constitute delay time in 5 seconds.During each the start, IC
2In just automatically reset " zero clearing ", 8 pin are output as low level.After unlatching operating switch K also promptly steps on a floor push (13), by IC
3The Q of CD4013 trigger 1
1After terminal potential uprised, high level sent IC to
2CD4541 the 6th pin CR end, IC at this moment
2The 8 pin Q end output high level of CD4541 is through R
1Give V
1Base stage, V
1, V
2Saturation conduction, V
2Colelctor electrode output power supply one tunnel is through R
19To making luminous tube LED (D
4) relay indicating light lights, the one tunnel gives the power adjusting circuit power supply, selects the decision gear to adjust power output optocoupler MO3061 (I by the power adjustment
C9-I
C13) setting of outer meeting resistance value, triggering unidirectional controllable silicon S CR conducting, magnetic valve gets electric acting.Nail catcher down under the drive of cylinder piston, under the working shaft towards one-stroke apart from being 3.5cm, round trip is 7.0cm.
3, five gear power outputs are adjusted circuit and digital display circuit.Circuit is by IC
5CD4017 scale of ten circuit IC
6The CD40110=-decimal system is counted/is latched/7 sections decoding/driver ICs, the common cloudy charactron of LED and peripheral circuits composition.
Start shooting moment V
SSPositive supply is through C
15, R
28Give IC
515 pin (R) and IC
6One pulse of 5 pin (R) ends, impel IC
5, IC
6Reset, make CD40110 be output as zero.
S
1Be driving switch, S
2Be reset switch.
When pressing S
1In the time of time, IC
5The 14 pin LC (end) of CD4017 have a high impulse, impel IC
5CD4017 carry, IC simultaneously
52 pin of CD4017 (Y end) output one high level, other outputs are low level, the high level of output is on one side through D
8Send into decoder driver IC
6CD40110 goes to drive the charactron amount and shows " 1 " shelves, on one side through current-limiting resistance R
9To V
3Base stage, V
3Conducting, so the 12V dc source is through V
2E, the C utmost point give light emitting diode, R in the MO3061 optocoupler
14, V
3C, the e utmost point to ground.Finished the power output of " 1 " shelves.If need different air pressure and send the pressure time to regulate with interior 0.8kg pressure and 6 seconds.
4, infrared ray safety guard circuit
IC
4MC14093BCP is a NAND gate (4,5,6 pin) and the outward element R in " four tunnel-2 NAND gate " integrated circuit
38, R
39And C
12Constitute 1KH
2Square-wave oscillator.The square wave of output is through V
10Amplify the back and divide two-way output from the C utmost point, the one tunnel through R
37Send into infrared light emitting diode VD
3, VD
4Outside transmitted pulse infrared signal; Another road is through R
34Send into IC
4Another NAND gate 1 pin.VD
1, VD
2Be infrared receiver tube.12V voltage is through R
30Give VD
1, VD
2Carry bias current.V
11, R
31, R
32Constitute the infrared signal amplifying circuit that receives.C
10Be the signal coupling capacitance, when extraneous foreign matter blocks infrared ray control zone, by VD
3, VD
4The infrared light of being launched is reflexed to infrared receiving tube VD by foreign matter
1, VD
2So optical signal becomes the signal of telecommunication through C
10Coupling, V
11Deliver to 2 pin after the amplification, the ultrared frequency of sending into 1 pin is identical, so IC
43 pin pulses output, again through IC
4After (8-9-10,11-12-13) pin carries out shaping and time-delay to output signal, by IC
410 pin output stablize the pulse signal of broadening, the one tunnel through R
42Give V
8Amplification by the C utmost point through IC
8Light emitting diode among the optocoupler 4N25, R
46To ground, the relay supply voltage passes through R
48The phototriode C-e utmost point adds to R
49Give V
12(9013), V
12Conducting, relay K S adhesive normally-closed contact J
1Disconnect, the drift working power is disconnected, drift quits work, and has played the effect of safeguard protection.Another road is through R
43Give V
9Amplification is by C utmost point IC
7Light emitting diode R in optocoupler 4N25
47To ground, vdd voltage passes through R
45The phototriode C-e utmost point adds to IC
3CP in the double D trigger trigger 2 wherein
2Hold 11 pin, trigger trigger 2 circuit, Q
2End output high level is through diode D
13R to the trigger 1
1End forces the Q in the trigger 1
1End recovers electronegative potential, IC
2CD4541 the 6th pin does not have high level pulse control signal, IC
2The 8 pin output low levels of CD4541, its external circuits does not have electricity and quits work, and promptly magnetic valve is not worked.Played the effect of dual security protection.Above-mentioned infrared ray safety guard is arranged on both sides, working shaft outer.
Pneumatic button sewing machine of the present invention is by above-mentioned machinery and circuit two large divisions be combined into, and complete machine structure is small and exquisite, neat appearance, circuit design meet nail catcher efficient, accurately, safety, energy conservation and environment protection, be clothes and button sewing industry ideal equipment.
Description of drawings:
Figure of description 1 is the front view of Pneumatic button sewing machine of the present invention, also is Figure of abstract, and Fig. 2 is a left view, and Fig. 3 is a vertical view, and Fig. 4 is a working circuit diagram.Among the figure, 1 electric cabinet, 2 air gauges, 3 portings (also be high and low end each one), 4 cylinders, 5 pistons, 6 infrared facilities, 7 working shafts, 8 upper punch lock plungers, 9 upper punch, 10 times punch dies, 11 bodies, 12 platforms, 13 supports, 14 foot-operated inductive switches, 15 magnetic valves, 16 Nts, 17 button boxes, 18 pressure regulation turn-knobs.
Fig. 4 is a circuit diagram of the present invention, I among the figure
C1To I
C6Integrated package, their models are respectively LM7812, CD4541, CD4013, MC14093, CD4017 and CD40110, I
C7And I
C8Light corner model is 4N25, I
C9To IC
13Light corner model is MO3061, and D1 to D14 is a diode, and D15, D16, D17 and D18 form bridge rectifier, and AC, V-and AC, V+ represent the rectification of KBPC2510 bridge heap, and C1 to C16 is an electric capacity, R
1To R
49Be resistance, VD
1And VD
2Be infrared receiver tube (also being 6 among Fig. 2), VD
3And VD
4Be infrared emission tube (also being 6 among Fig. 2), V
CCBe relay power, LD is a laser apparatus, and Z is magnetic valve (also being 15 among Fig. 3), S
1For driving switch (a in the control chart b c d e f g), S
2Be reset switch, K is switch (also being the floor push 14 among Fig. 2).