CN2238739Y

CN2238739Y - Automatic steel seal machine

Info

Publication number: CN2238739Y
Application number: CN 95236690
Authority: CN
Inventors: 彭步左; 彭文亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-28
Filing date: 1995-04-28
Publication date: 1996-10-30
Anticipated expiration: 2005-04-28

Abstract

The utility model discloses an automatic steel seal machine, comprising a light source generator (4) and a light receiver (2) which are used for picking signals emitted after paper being put in, a control circuit board (9) transduces and magnifies the signals, a control motor (10) drives a worm transmission mechanism (6) for passing torque to an eccentric wheel (7), a concave steel seal (16) and a convex steel seal (3) are pressed in, and then the work of the steal seal machine is automatically controlled. The pressure from the steel seal to the paper goes through a blocking spring block (13) and a regulating spring (1) by a screw (12), and then printing quality is ensured. The utility model has the advantages of simple structure and less noise by adopting the worm transmission mechanism (6) for reducing speed.

Description

Automatic marking press

The utility model relates to a kind of automatic marking press of being controlled automatically by machinery, photoelectricity.

Marking press of the prior art adopts simple leverage, needs to execute bigger power with hand and gives action bars, could print out steel seal, use fatiguability when the operator is long, and efficient is low, and printing quality is uneven.The excessive paper of easily hindering of exerting oneself, too small steel seal of printing off is unintelligible.

The purpose of this utility model is to design a kind of automatic marking press by photo-electric control, overcomes the shortcoming of existing marking press, alleviates operator's labour intensity, improves the steel seal quality.

For finishing above-mentioned purpose, the technical solution adopted in the utility model is: when the certificate that the light that is sent by light source is placed into blocks, adopt photelectric receiver to pick up the signal that certificate is put into, by photoelectric conversion amplifier and electromotor control circuit, it is the running of control circuit board control motor, after by worm gearing the rotating speed of motor being reduced, drive eccentric wheel and promote guide post and makes recessed steel seal and protruding steel seal pressing printing certificate.And be provided with steel seal pressure-regulating device set pressure, with the printing of the different paper of suitable thicknesses.

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Fig. 1 is automatic marking press operation principle block diagram.

Fig. 2 is automatic marking press control circuit schematic diagram.

Fig. 3 is automatic marking press front view.

Fig. 4 is the vertical view after automatic marking press is removed outer cover (11).

Figure 1 shows that functional-block diagram.When the certificate that the light that is sent by light source is placed into blocks, after optical receiver receives this signal, give photoelectric conversion amplifier and change amplification, give electromotor control circuit again, drive motor drives mechanical driving device, promotes steel seal and moves the printing certificate.This automatic marking press also is provided with hand switch K1, does not prepare against when having light signal and uses.

Figure 3 shows that the front view of automatic marking press.When the light that sends when light source generator (4) is blocked by certificate, after optical receiver (2) receives dark signal, just this dark signal is sent into control circuit board (9) and be used for controlling the motor (10) that is installed on the base (5), motor (10) drives worm gearing (6) by sleeve (19) and does retarded motion, eccentric wheel (7) is passed in torque, the recessed steel seal (16) that eccentric wheel (7) rotate to promote to link to each other with guide post (17) be moved to the left up to protruding steel seal (3) pressing, the pressure size of steel seal on certificate adjusted by the steel seal pressure-regulating device, the steel seal pressure-regulating device is by screw (12), catch spring piece " 13 ", spring (1), steel seal seat (15), screw (14) is formed, resetting of recessed steel seal (16) realized by spring (18), on the right of eccentric wheel (7) return limit switch K2 (8) is installed, the running of limit switch K2 (8) control motor (10).Motor (10), worm gearing (6), eccentric wheel (7) are installed in the outer cover (11).

Figure 2 shows that automatic marking press control circuit schematic diagram, transformer B and commutation diode D1～D4, capacitor C 1 etc. are formed current rectifying and wave filtering circuit.R0 is a photelectric receiver, and what adopt among the figure is photo resistance, when it is subjected to illumination, is low-resistance, during unglazed the photograph, is high resistant.Triode BG, R0, resistance R 1, R2, R3, capacitor C 2 etc. are formed photoelectric conversion amplifier.555 timer ICNE555, resistance R 4, relay J, diode D etc. form electromotor control circuit, under the light source irradiation.Photo resistance R0 is low-resistance.Voltage on it is less than 0.3V, triode BG ends, its colelctor electrode output level equates with the 2 pin level of IC, all be supply voltage E, so the voltage at capacitor C 2 two ends is 0, output level 3 pin of IC are 0, relay J is not worked, contact J in motor (10) power supply circuits disconnects, and motor (10) does not rotate, when the optical signal that light source generator (4) sends is placed into certificate between protruding steel seal (3) and the recessed steel seal (16) and blocks, R0 is high resistant, voltage on it is greater than 0.7V, and triode BG saturation conduction is because the voltage at capacitor C 2 two ends can not suddenly change, making the 2 pin level of IC equal capacitor C 2 voltages is 0, the 3 pin output high level of IC, the relay J adhesive, motor (10) power supply is switched on, and motor (10) starts.This moment, power supply E charged to capacitor C 2 through resistance R 3, make the very fast rising of voltage at C2 two ends reach E, when motor (10) drive eccentric wheel (7) rotates return limit switch K2 (8) closure that reaches a week shown in Figure 3, make 6 pin of IC be upgraded to high potential E by R4 from electronegative potential, because this moment, 2 pin of IC reached high potential E in advance, so 3 pin of IC transfer low level immediately to, relay J discharges, cut off motor (10) power supply, motor (10) stall, recessed steel seal (16) resets.Wait for putting into of next certificate.

Resistance R 3, capacitor C 2 are differential circuit, its effect is the width of the 2 pin input trigger impulse of restriction IC, the width that makes this pulse less than steel seal from starting the time of connecting to return limit switch K2 (8), when guaranteeing the 6 pin input high levels of IC, can make 3 pin of IC transfer low level to from high level reliably.Triode BG from saturated transfer to by the time, electric capacity transfers discharge to by charging, its discharge loop is from C2 positive pole → R3 → R2 → C2 negative pole.D5 is that relay J discharges the loop, with protection IC.

The effect of hand switch K1 shown in Fig. 2 is when not having light signal, to press hand switch K1, steel seal function work as usual automatically.

The utlity model has following advantage: (1) have easy to operate, laborsaving, printing quality is good, the uniformity height.(2) because adopted that worm gearing (6) makes that the complete machine noise is low, compact conformation, vibration be little.(3) owing to be provided with the steel seal pressure-regulating device, this machine is applicable to the printing of the papery that various thickness are different.(4) control circuit is simple and reliable.

Accompanying drawing has been described embodiment of the present utility model.

Claims

1, a kind of automatic marking press, by worm gearing (6), base (5), motor (10), control circuit board compositions such as (9).It is characterized in that:

(1), in the hole, upper left quarter garden of base (5), a spring (1) is housed, be connected with a screw (12) and a catch spring piece " 13 " of regulating pressure with spring (1) left end, be connected with one with spring (1) right-hand member the steel seal seat (15) of protruding steel seal (3) is installed, in protruding steel seal (3), the below of recessed steel seal (16), base (5) is gone up correspondence optical receiver (2) and light source generator (4) is installed;

(2), on base (5) the right worm gearing (6) is installed, an end coaxial with worm gear is equipped with eccentric wheel (7), be connected with a guide post (17) by eccentric wheel (7) promotion with recessed steel seal (16), back-moving spring (18) is housed on guide post (17), return limit switch K2 (8) is housed at the right-hand member of eccentric wheel (7);

(3), the worm screw input is connected with motor (10) by sleeve (19);

(4), control circuit board (9) is housed on base (5).

2, a kind of automatic marking press according to claim 1, it is characterized in that control circuit board (9) above dc source is arranged, it is by the commutation diode D1～D4 of transformer B and current rectifying and wave filtering circuit, capacitor C 2 is formed, control circuit board has photelectric receiver R0 on (9), what be connected with photelectric receiver R0 has a photoelectric conversion amplifier, by triode BG, resistance R 1, R2, R3, capacitor C 2 is formed, what be connected with the photoelectric conversion amplifier output is electromotor control circuit, it is by 555 timer ICNE555, resistance R 4, capacitor C 3, K switch 1, relay J, diode D5 forms, and K switch 1 constitutes personal control.