CN202436277U

CN202436277U - Hand injury avoidable safety device

Info

Publication number: CN202436277U
Application number: CN2012200238054U
Authority: CN
Inventors: 吴镇
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-19
Filing date: 2012-01-19
Publication date: 2012-09-19
Anticipated expiration: 2022-01-19

Abstract

The utility model relates to a hand injury avoidable safety device. The hand injury avoidable safety device comprises a punching dotter body and an undershoot mold rod arranged on the punching dotter body and further comprises an electromagnet control circuit and an inductor. The electromagnet control circuit controls the undershoot mold rod to move, and the inductor is arranged on a working table and is in electric connection with the electromagnet control circuit. The hand injury avoidable safety device is reasonable in structure, and humanized operation is achieved. For existing punching machines and dotters, hand injury accidents caused by misoperation can be effectively avoided by installing the safety device totally without modifying original mechanical and circuit structures.

Description

The anti-hand safety device of hindering

Technical field

The utility model relates to punching that clothes, shoe-making industry generally use, beats the special-purpose machinery field of buckleing usefulness, relates in particular to the anti-hand safety device of hindering of a kind of perforating press, dotter (following general designation perforating press).

Background technology

The perforating press of present known clothes, shoe-making industry, all be play button or punching by simple foot-operated pull bar mechanical force control following punch die tool jumper bar down impulsion do, promptly when people's pin whenever step on pedal, dotter or punching down punch die tool jumper bar just down towards once.Often occur owing to control people's distraction or when not noting, the hand-held workpiece of people puts in down punch die tool jumper bar position in operation, causes industrial accidents such as severed finger.

The utility model content

The utility model provides a kind of and prevents hindering the hand safety device to the deficiency of above-mentioned prior art, can prevent under abnormal conditions, to cause casualty accident to take place effectively.

For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of anti-hand safety device of hindering; Include punching and beat mouthful body and be located at following to mold rods on this body, also include control circuit for electromagnet and inductor, said control circuit for electromagnet control is down towards the motion of mold rods; Said inductor is located on the workbench, and is electrically connected with control circuit for electromagnet.

Preferably, said inductor is connected near the formula sensor circuit with electric capacity.

Preferably, this device also includes sound light alarming circuit, and this sound light alarming circuit is electrically connected with sensor circuit.

The operation principle of the utility model: following the dashing of the following punch die tool jumper bar of the machinery control of utilization Electromagnetic Control circuit control perforating press, utilization electric capacity be near the duty of formula sensor circuit control control circuit for electromagnet, realizes when staff is crossed safe distance and put in down punch die tool jumper bar position; Make the electromagnet outage; Even step on down pedal this moment, following punch die tool jumper bar can not dash down yet, promotes acoustic-electric alarm equipment alarm circuit simultaneously; Remind the operator, reach protection staff security purpose.

The technical scheme that the utility model adopts is: the following punch die tool jumper bar of controlling perforating press with control circuit for electromagnet; Make original pushing down on the pedal promptly drive punch die tool jumper bar whereabouts down by associated mechanical; Becoming pushes down on the pedal now falls through punch die tool jumper bar under the electromagnet energising drive, will be controlled by machinery the control that following punch die tool jumper bar falls to become electric control.Again by being located at condenser type on the workbench near sensor circuit; Promptly a condenser type that comprises the inductance sheet respectively is being installed near induction system about punch die tool jumper bar down; When staff is outside safe distance; Electric capacity does not have signal output near the formula inductor, and control circuit for electromagnet control electromagnet drives punch die tool jumper bar operate as normal down; When staff was crossed safe distance and put in down punch die tool jumper bar position, electric capacity was given control circuit for electromagnet near the formula sensor output signal, made solenoid circuit break off, even pedal, punch die tool jumper bar can not dash down because of losing the electromagnet pulling force down.

Also use sound light alarming circuit in addition, when staff was crossed safe distance and put in down punch die tool jumper bar position, acoustic-optic alarm was reported to the police, and reminded the operator.

Compared with prior art; The advantage that the utlity model has: the anti-hand safety device of hindering of the utility model; Can be strayed under the perforating press punch die tool jumper bar at party's hand and dash the position; Possibly cause hinder stop automatically before the hand down punch die tool jumper bar down impulsion do, and sound and light alarm reaches the effect of protection staff safety.

Description of drawings

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

Fig. 1 explanation: 1-1 is the inductance sheet that is installed in down towards about the mold rods, links to each other near the formula sensor circuit with electric capacity; 1-2 is that electromagnet chain-type pull bar is controlled by control circuit for electromagnet, in order to control down the duty towards mold rods; 1-3 is an acoustic-optic alarm, is controlled by sound light alarming circuit; 1-4 is a pedal, pin is housed steps on switch; Other electric elements of foregoing circuit are installed in the perforating press body 1-5.

Fig. 2 is the circuit diagram of the utility model;

Fig. 2 explanation: the utility model circuit is made up of four parts: wherein 2-1A, 2-1B are two groups of identical capacitive induction circuit; 2-2 is a control circuit for electromagnet, and 2-3A, 2-3B are two groups of identical relays and sound light alarming circuit; 2-4 is a power circuit.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

A kind of anti-hand safety device of hindering as shown in Figure 1; Including punching beats mouthful body 1-5 and is located at following to mold rods on this body; Also include control circuit for electromagnet and inductor 1-1; Said control circuit for electromagnet control is down towards the motion of mold rods 1-2, and said inductor is located on the workbench, and is electrically connected with control circuit for electromagnet.Said inductor 1-1 is that electric capacity is near the formula sensor circuit.

This device also includes sound light alarming circuit 1-3, and this sound light alarming circuit 1-3 is electrically connected with sensor circuit.

Said electric capacity as shown in Figure 2 is near formula sensor circuit 2-1A, 2-1B; Be included in down towards symmetrical 2 electric capacity of mold rods near formula inductor 1-1; When staff is crossed safe distance and is put in down punch die tool jumper bar 1-2 position; Electric capacity outputs signal to control circuit for electromagnet near the formula sensor circuit, makes solenoid circuit break off, even push down on the pedal 1-4.Following punch die tool jumper bar 1-2 can not dash down because of losing the electromagnet pulling force, and when staff was outside safe distance, electric capacity did not have signal to send near the formula sensor circuit, and electromagnet drives punch die tool jumper bar operate as normal down.

Said control circuit for electromagnet 2-2, when staff outside safe distance, when electric capacity did not have signal to send near the formula sensor circuit, electromagnet drove down towards mold rods 1-2 operate as normal.When staff near and when crossing safety margin, electric capacity sends signal near the formula sensor circuit, promotes this circuitry cuts electromagnet power supply, makes down towards mold rods and can not dash down, reaches protection staff safety.

Said relay and sound light alarming circuit 2-3A, 2-3B are two groups of same circuits; Effect is when staff is outside safe distance; The automatic block system relay of this circuit is used the contact always, in any case make the electromagnet dead electricity pedal in the control circuit for electromagnet, all can not dash down towards mold rods down; Sound light alarming circuit is taken over the signal that electric capacity is sent near the formula sensor circuit simultaneously, realizes sound and light alarm.

Said power circuit is to be drawn by the 380V power supply of former supply perforating press, and through transformation, be rectified into 12V, 24V direct current, supply the condenser type sensor circuit respectively, control circuit for electromagnet, relay and sound light alarming circuit work.

Doing into to go up the step according to 2 pairs of the utility model of accompanying drawing describes in detail.

Condenser type is near sensor circuit: being made up of two the identical circuit 2-1A of principle, 2-1B, is that example is described here with 2-1A, and this circuit drives output circuit by bikini electric capacity oscillator, inductance sheet M and multiple tube and forms; Wherein bikini electric capacity oscillator is by inductance L, electric capacity G3, C3, C5, resistance R 3, R4, triode VT1 and capacitor C 0, and in order to regulate the diode VD of induction sensitivity; Variable resistor RP1, resistance R 2 is formed, and multiple tube drives output circuit by triode VT2, VT3, VT4; Resistance R 5, R6 capacitor C 6 are formed, in order to control relay J1, J2 and sound light alarming circuit work, and inductance sheet M; In order to staff near making induction to down towards mold rods, near risk distance the time; XT2 is the welded type binding post, and its 5 termination power is anodal, 6 termination drive output; With sound light alarming circuit, control relay circuit connects.This circuit working principle is: connect with C0 from exchanging C3, when staff outside safe distance, during not near M, C3 is less, the high frequency voltage at C0 two ends is bigger, it passes through the base stage that C5 feeds back to VT1 is enough to keep the bikini oscillator vibration.Bed hedgehopping voltage on VT1 conducting, the while resistance R 4 makes the VT2 conducting, makes multiple tube VT3 and VT4 end, and cuts off the power supply of the XT2 binding post that links to each other with relay J 1, J2 sound light alarming circuit.

If staff is near sensing chip M and cross safe distance; This moment, C0 increased; Its high frequency voltage reduces and is not enough to keep the VT1 conducting, and after VT1 ended, VT2 also ended; Multiple tube VT3, VT4 conducting at this moment connects the binding post XT2 output 12V direct current of sound light alarming circuit and relay, supplies sound light alarming circuit 2-3A, 2-3B and relay J 1, J2 that working power is provided.

Relay and sound light alarming circuit, shown in the identical 2-3A of circuit safety among Fig. 2,2-3A is by relay J 1, buzzer B1, LED 1 is formed with resistance R 7.(formation of 2-3B and operation principle and 2-3A are just the same).

Its operation principle is: when staff does not have near sensing chip M; Binding post XT2 power supply is cut off, because there is not electricity, relay J 1 is not worked; The closed conducting of the normally-closed contact J1-1 of J1; This moment, the power supply of control circuit for electromagnet 2-2 repeat circuit J3 was controlled by the floor push that is installed on the pedal, and the normally opened contact J1-2 of J1 breaks off simultaneously, and buzzer B1 and LED 1 are not reported to the police because of non-transformer.Otherwise, when staff near sensing chip and when crossing safe distance, electric capacity near sensor circuit make XT2 output 12V directly electricity drive J1 and get electric adhesive; The normally-closed contact J1-1 of J1 breaks off; The negative pole of Fig. 2-2 control circuit for electromagnet repeat circuit J3 pull-in winding is broken off, and the J3 dead electricity is not worked, in any case step on down the not adhesives of pedal electromagnet; Dash under the not meeting towards mold rods down; The normally opened contact J1-2 adhesive conducting of J1 is simultaneously sent sound and light alarm, the limit source resistance of R7LED2 near buzzer B1 LED 2.

Control circuit for electromagnet is shown in 2-2 among Fig. 2, by electromagnet YA; Floor push SB; Relay J 3 and normally opened contact J3-2 thereof, the normally-closed contact J1-1 of relay J 1J2, J2-1 forms; Its operation principle is: the normally opened contact that J1-1, J2-1 are connected on (1 end of binding post XT1) floor push SB between J3 pull-in winding and the positive source is connected on (2 ends of binding post XT1) between J3 pull-in winding and the power cathode.As long as these three contacts have a contact to be off-state, relay J 3 just can't get the electrician and do.(when staff is not crossed the sensing chip safe distance) foot-operated pedal (floor push) SB normally opened contact down is closed during the perforating press operate as normal, and J3 gets electric adhesive, the normally opened contact J3-2 closure of J3; Electromagnet YA gets electric adhesive, and pulling is dashed under mold rods down, when pin is decontroled; The normally opened contact of SB breaks off; The electromagnet dead electricity discharges, and the punch die tool makes the actuation mechanism return under the perforating press, prepares action for the second time.When staff near sensing chip M and cross safe distance, capacitive sensing circuit 2-1A (2-1B) relay J 1J2 gets electric adhesive, the normally-closed contact J1-1 (J2-1) of J1J2 breaks off; Cut off the wire loop of J3 relay; This moment, relay J 3 dead electricity can't adhesive, and the normally opened contact J3-2 of J3 is in off-state, thereby even guarantee the pin switch that pushes down on the pedal; Electromagnet YA can adhesive yet; Can not work towards mold rods down, leave sensing chip M to safe distance until staff, control circuit for electromagnet recovers normal operating conditions.

Power circuit; Shown in 2-4 among Fig. 2; This circuit is by transformer TR, and rectifier bridge AC1, AC2 capacitor C 1C2 power supply indicator LED1 and limit source resistance R 1 thereof and backguy terminal XT1 form, and in former perforating press circuit, control; The button self-lock switch SQ leading-out terminal of three-phase alternating current is provided for perforating press motor M 3, draws two and insert transformer TR mutually.

This part circuit working principle is: when pressing switch S Q, behind the power turn-on, during the perforating press motor rotation, the elementary line group of TR obtains the 380V alternating voltage, through the secondary wire set transformation, exports 2 groups of low pressure, and one group of 12V is through the VC1 rectification.C1 filtering becomes DC-voltage supply to be held near sensor circuit, sound light alarming circuit and relay J 1J2 work, and 24V is through the VC2 rectification for another group, becomes the work of powered by direct current magnet control circuit after the C2 filtering.

The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. prevent hindering the hand safety device for one kind; Including punching beats mouthful body and is located at following to mold rods on this body; It is characterized in that: also include control circuit for electromagnet and inductor; Said control circuit for electromagnet control is down towards the motion of mold rods, and said inductor is located on the workbench, and is electrically connected with control circuit for electromagnet.

2. as claimed in claim 1ly anti-hinder the hand safety device, it is characterized in that: said inductor is connected near the formula sensor circuit with electric capacity.

3. according to claim 1 or claim 2 the anti-hand safety device of hindering, it is characterized in that: this device also includes sound light alarming circuit, and this sound light alarming circuit is electrically connected with sensor circuit.