KR100246954B1 - Solenoid press - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press, and more particularly, to a solenoid press that operates a solenoid using charged electrical energy to perform a predetermined press operation with the driving force of the solenoid.

As a conventional press, the electric press combines an electric motor with a flywheel to generate rotational power as a press power, and thus consumes a lot of power. In the case of the manual press, it is a structure that obtains the press power by stepping force or by manually rotating the flywheel, which requires multiple operations simultaneously with the closing end that the workability is significantly reduced. The productivity is different and the surroundings are distracted, so there is a lot of injuries, and in particular, depending on the manual force of the mechanical structure, a problem that requires a lot of labor is caused.

At the same time, all of the prior art has a problem that the noise is severe and the inertia control is difficult.

The present invention is to solve the problems of the prior art as described above to obtain a press operating force using electrical energy, but excludes a rotary machine to provide a solenoid press with high energy efficiency and simple mechanical configuration, By charging and discharging the energy in the condenser, the magnetization of the solenoid is converted into mechanical energy, and the solenoid press is provided to easily control the inertia according to the control of the charging amount. Charging means for charging and discharging electric energy to provide solenoid presses that are compact and easy to move and install, and have a small and trouble-free repair element, which are suitable for drilling, riveting, press processing of eyelets, etc. To the solenoid Charge control means for controlling the amount of charge / discharge of the electrical energy, and discharge control means for controlling the discharge of the electrical energy charged in the charging means by adding magnetic energy of the solenoid to mechanical energy to generate a press pressure. Characterized in that made.

Description

Solenoid press

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press, and more particularly, to a solenoid press that operates a solenoid using charged electrical energy to perform a predetermined press operation with the driving force of the solenoid.

In general, presses used in industrial fields are classified according to their use, and there are hydraulic presses for processing a large work object, and electric presses using a motor as a power source for processing a relatively small work object. And manual presses for machining very small workpieces.

The hydraulic press that requires the large or large torque is mainly used for cutting or bending steel plates, etc., and is far from the processing of the object to be proposed by the present invention, which is outside the scope of the present invention. The present invention is not intended to be compared to the large hydraulic press as described above.

However, looking at the press sufficient even with a small torque in order to process such a relatively small work object as follows.

In other words, presses or manual presses are mainly used in the process of punching, bending and riveting steels, fabrics, leathers, etc., which are thin or relatively soft, or assembling snap buttons and eyelets. It is becoming.

The electric press is a combination of an electric motor and a flywheel to generate rotational power as a press power, so that the power consumption is high, and on the contrary, the efficiency is low, and there are many mechanical driving elements, there is a disadvantage that the maintenance demand is increased, the weight is Heavy and inconvenient movement and installation, and difficult to adjust the stroke and the force has a number of disadvantages, such as unsuitable for small riveting work.

On the other hand, in the case of the manual press, the structure is obtained by stepping force or by manually turning the flywheel to obtain press power. As a result, the productivity is different and the surroundings are distracted, causing a lot of injuries. In particular, the mechanical structure relies on the manual force, which causes a lot of labor.

Of course, the compact press using the hydraulic or pneumatic can solve some of the above problems, but there is a problem that a considerable restriction in the movement and location selection of the working place is required because it must be equipped with a separate oil and pneumatic supply.

At the same time, all of the prior art has a problem that the noise is severe and the control of inertia is difficult, which appears as a result of premature failure of the press and assembly jig.

The present invention has been made to solve the problems of the prior art as described above has the following object.

The present invention provides a solenoid press having high energy efficiency and simple mechanical configuration since the press operating force is obtained using electrical energy but excludes a rotary machine.

The present invention is to provide a solenoid press that is made to convert the electrical energy to mechanical energy by charging and discharging the electrical energy in the condenser to be converted to mechanical energy, the control of the inertia according to the control of the amount of charge.

The present invention is miniaturized to be suitable for the assembly of small electronic parts, punching and riveting of textiles, leather, etc., press processing of eyelets, etc., thereby providing a solenoid press that is easy to move and install, has fewer troubleshooting elements, and has excellent safety. will be.

The present invention made to achieve the object as described above is the charging means for charging and discharging electrical energy and the charged electrical energy is applied to the solenoid so that the magnetic energy of the solenoid is converted into mechanical energy to generate a press pressure And charge control means for controlling the amount of charge / discharge charge of energy, and discharge control means for controlling the discharge of electric energy charged in the charge means.

1 is a systematic diagram showing the technical idea of the present invention.

2 is a circuit diagram illustrating a control system according to an embodiment of the present invention.

Figure 3 is a longitudinal cross-sectional view showing a drive system as an embodiment according to the present invention.

Hereinafter, the technical spirit of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the schematic diagram of the present invention in FIG. 1, the solenoid press rectifies a commercial AC power supply and charges the rectified power supply to provide electrical energy to the solenoid, and is magnetized by instant discharge of the charge. It consists of a solenoid generating energy, so that the press pressure can be obtained by the driving force of the solenoid.

On the other hand, the charging control means for picking up the charge voltage level of the charging means and adjust the level, and the discharge control means for initiating the discharge of the charging means and the charge signal of the charging means to the solenoid by an external signal Is made to discharge.

The charging control means is configured to open and close the control of the commercial AC power input to the charging means, the discharge control means is made to be provided as a trigger for opening and closing the discharge circuit through the solenoid of the power charged to the charging means.

On the other hand, a control power supply for supplying control power to the charge and discharge control means and a reset unit for inducing and repeating the opposite trigger of the charge and discharge control means is formed.

As described above, the solenoid press of the present invention rectifies the commercial AC power and charges the battery to reach a predetermined level, and when the external signal is input, configures a discharge passage through the solenoid to discharge the charging power so that the solenoid is discharged. The press pressure is obtained by converting the magnetic energy of to mechanical energy.

A preferred embodiment of the present invention will be described in more detail below.

Reference is made to a circuit diagram showing a control system of the solenoid press in FIG. 2.

A charge control unit 30a comprising an AC switching element T1 and an optically coupled photocoupler PC1 for triggering the switching element to open and close the input terminal from a commercial AC power supply (AC 220V) input terminal; A rectifying unit 20 includes a charging unit 20 including a capacitor C1 for charging the rectified power and a DC voltmeter Vm indicating a charging potential, a solenoid SOL driven by the charging unit potential, and opening and closing of the solenoid. Control to form a control power supply by performing a rectification and a constant voltage from the solenoid drive unit 10 consisting of a switching element (S1) for controlling and an optical coupler (PC3) coupled to trigger the switching element, and AC power supply (AC 24V) input terminal A ratio including a power supply unit 50 and a variable resistor R16 that picks up the potential of the capacitor C1 of the charging unit 20 and connects it to a comparison input and sets a charging potential level of the charging unit; The unit 30b, the single junction transistor UJT, the photocoupler PC1, and the capacitors which trigger the charging control unit 30a when the pick-up power supply level of the charging unit 20 of the comparison unit 30b is lower than the reference voltage. It is connected to the charge control signal generator 30C including a delay circuit composed of a diode D6, a resistor R8, and a capacitor C5, which prevents rapid charging of the C1, and the control power supply 50. Monostable multivibrator (IC1) with the input signal limit switch (LS) connected as a negative edge trigger signal, and the monostable multivibrator (IC1) with the "H" output signal as a positive edge trigger signal. The discharge control signal generator 40 includes a multivibrator IC2 and a photocoupler PC3 turned on by the "H" output of the multivibrator IC2, and the " Transistor turned on to H "output It is configured as a combination (Q5) in parallel with the counter (CT) in the switching device reset part 60 connecting the photo coupler (PC2) to be turned off (T1) of the charge control unit (30a).

According to the embodiment of the control system of the present invention, when the first commercial power supply AC 220V is connected, a reduced AC power supply AC 24V is simultaneously applied.

The commercial power supply AC 220V is charged in the capacitor C1 of the charging unit 20 by the DC power rectified by the switching element T1 of the charging control unit 30a via the gas rectifying unit.

Here, the operation of the photocoupler PC1 that controls the turn on and turn off of the charge control unit 30a is controlled by the charge control signal generator 30c, which will be described later.

Meanwhile, when the capacitor C1 is charged, a predetermined charge level is displayed on the voltmeter Vm to inform the user.

The charging level is set by the variable resistor R16 of the comparator 30b, which forms a comparison input level based on the divided voltage values of the resistors R14 and R15 connected in series with the variable resistor R16.

Therefore, after a predetermined charge level is set, the comparison input of the comparison unit 30b picks up the potential level of the capacitor C1 and is input to the transistor Q4, and the reference voltage set as the zener diode D7 in the transistor Q3. When the capacitor potential level picked up compared to the reference voltage level is lower than that of the level, the transistor Q2 is turned on so that the junction transistor UJT generates a pulse output according to the charging of the capacitor C4 so that the photocoupler PC1 emits light. The device is turned on so that the light receiving device of the photocoupler PC1 of the charging control unit 30a triggers the switching device T1 consisting of triacs to close the commercial AC power line and continue charging. This is done repeatedly in every AC half-wave.

At this time, when the capacitor C1 is charged to a potential reaching a predetermined set level, when the comparison potential level picked up by the comparator 30b becomes equal to or greater than the reference voltage, the transistor Q2 is turned off while the bias is lost. Accordingly, since the light emitting devices of the junction transistor UJT and the photocoupler PC1 are also in a blocking state, the light receiving device of the photocoupler PC1, which is a trigger signal of the switching device T1 of the charge control unit 30a, is also blocked. The commercial AC power supply line is cut off in the open state.

Based on the above process, the charging unit 20 is charged with a DC power voltage of a predetermined level.

The charged DC power supply voltage is discharged to operate the solenoid SOL according to an external signal by the user.

The charge and discharge of the solenoid drive power and the control power for controlling the same are formed by a control power supply 50 consisting of a rectifier and a constant voltage circuit from an AC 24V power input and supplied to all logic.

The discharge control signal generator 40 comprising monostable multivibrators IC1 and IC2 connected to the control power supply 50 allows the charging power of the capacitor C1 to be applied to the solenoid and to control the timing of starting recharging. do.

That is, the limit switch LS connected to the negative edge trigger input terminal P5 is operated according to the user's intention of an external signal.

When the limit switch LS is closed, an "H" output is generated at the output terminal P6 of the multivibrator. This output turns on the transistor Q5 of the reset unit 60 to turn on the counter CT and the photocoupler PC2. To operate the light emitting device.

Thus, the photocoupler PC2 blocks the single junction transistor UJT that generates a pulse output through the transistor Q2 of the charge control signal generator 30C, thereby simultaneously blocking and charging the light emitting device of the photocoupler PC1. Since the light receiving element of the photocoupler PC1 that triggers the switching element T1 of the controller 30a is turned off and the trigger signal is lost, the commercial AC input is cut off.

At the same time, the "H" output of the multivibrator IC1 is applied to the positive edge trigger input stage P12 of another multivibrator IC2 to generate an "H" output at its output stage P10. By turning on the device, the light receiving device of the photocoupler PC3 which triggers the switching device S1 of the solenoid driver 10 is turned on, and the DC power voltage charged in the capacitor C1 is applied to the solenoid SOL. .

Eventually, the solenoid (SOL) is magnetized to generate mechanical actuation force.

In consideration of the charge and discharge timing of the capacitor, monostable multivibrators IC1 and IC2 having different time constants are configured.

In addition, in order to reduce the shock caused by the start of recharging after discharging the capacitor C1, the diode D6, the resistor R8, and the capacitor C3 are used to delay the time constant of the single-junction transistor UJT which starts the charging. A delay circuit is provided, whereby charging is not performed immediately upon discharge and a predetermined charge start time is delayed. This is to protect the capacitor from shock.

The charge potential of the capacitor C3 of this delay circuit drives the solenoid SOL and simultaneously forms a discharge path via the diode D8 to prepare for reoperation.

As a result, the photocoupler PC1 and the photocoupler PC3 interact with each other by the photocoupler PC2, so that the application of a commercial AC power supply voltage and the solenoid discharge timing also interact with each other. To prevent it.

The counter CT displays the operation degree by integrating the driving of the solenoid SOL.

3 is a longitudinal cross-sectional view of a drive system according to an embodiment including the control system of the present invention as described above.

Solenoid presses that obtain the processing force by the driving force of the solenoid is a rod-shaped pressurized to the transverse 105 is installed through the opening 104 to the front panel 103 installed on the base plate body 101 and the front side between the transverse Sphere 107 is inserted into the guide 109 fixed to the front panel, the screw 111 is coupled to the elevating, and the other side rear side of the transverse upper fixing bracket via the tangy spring 113 from the base plate body 101 It is made by penetrating through the rod-shaped support 115 leading to (120), by fixing the end of the operating rod 117 of the solenoid (SOL) in the center portion of the transverse 105 to the solenoid to the front panel 103 Fixed jig, the jig 132 on the slider 131 is formed by forming a jig mounting unit 130, the slider 131 and the support 133 slidably coupled to the wedge groove in one front surface of the base plate 101. Fixed) The pressure bar 135 is protruded and coupled to one side of the slider 131 to penetrate through the through hole 102 of the front panel 103 to press the built-in limit switch LS.

The fixing bracket 120 restricts the rise of the transverse 105 and at the same time forms a buffer hole 122 to mitigate the impact.

In addition, if necessary, the pressing end of the pressurizing port 107 may be variably formed, and the pressurizing end may be formed with a carbonized pusher 108 for pressing the workpiece prior to pressurizing and the end 107a of the pressing port. The punch, hammer, etc. can form a variety of end shapes, which can be mounted with the jig 132 depending on the object to be processed.

According to the configuration of the drive system as described above, when the workpiece is mounted on the assembly jig 132 provided on the slider 131 slid on the support 133 and the slider 131 is pushed, the pressure rod 135 on one side of the slider is pushed. By pressing the built-in limit switch (LS) penetrating through the through hole 102 of the) and the solenoid (SOL) is magnetized in accordance with the above-described control process of the control system to suck the operating rod 117.

As the transverse 105 is guided to the guide 109 and the support 115 is instantaneously lowered, and thus the end 107a of the pressure port 107 is applied to the jig 132 to process the object to be processed. .

Of course, when the process is finished and the magnetization of the solenoid (SOL) is released, the transverse 105 is raised to the original position based on the tangy spring 113 and the user retreats the slider 131 to remove the object from the jig 132. You can attach it again and work.

The pressing member 108 is coalesced at the end of the pressing end 107a and protrudes longer than the pressing end to press the object to be pressed to press the workpiece to prevent shaking.

As described in detail above, the present invention obtains a press operating force by charging electric energy, but excludes a rotating machine, so that the energy efficiency is high and the machine configuration is simple, and the electric energy is charged and discharged by a capacitor. The magnetization of the solenoid is converted into mechanical energy, thereby making it possible to easily adjust the inertia according to the variable control of the charging amount. The present invention provides the assembly and assembly of small electronic components, fabrics, leather, etc. It is a very excellent invention having the effect of forming a solenoid press that is compact and is easy to move and install, and has little trouble-shooting elements, and has excellent safety.

Claims (4)

Rectifying a commercial AC power supply and charging the rectified power to provide electrical energy to the solenoid, a solenoid magnetized by instant discharge of the charged charge to generate mechanical energy, and a charge voltage level of the charging means is picked up. A charge control means for opening and closing a control of commercial AC power input to the charging means, and a trigger signal for opening and closing a discharge circuit through a solenoid of the power charged to the charging means by an external signal. The magnetic energy of the solenoid by providing a discharge control means for initiating a discharge, a control power supply for supplying control power to the charge and discharge control means, and an inverted trigger of the charge and discharge control means and a reset part for repeating the same. Press into mechanical energy to obtain press pressure Solenoid press, characterized in that made so. The charging control unit 30a according to claim 1, comprising an AC switching element T1 for opening and closing the input terminal from a commercial AC power supply (AC 220V) input terminal and an optically coupled photocoupler PC1 for triggering the switching element. And a charging unit 20 rectifying the commercial AC power supply, including a capacitor C1 charging the rectified power, and a DC voltmeter Vm indicating a charging potential, and a solenoid SOL driven by the charging unit potential. And a rectification and a constant voltage from the solenoid driving unit 10 including a switching element S1 for controlling the opening and closing of the solenoid and an optically coupled photocoupler PC3 for triggering the switching element, and an AC power supply (AC 24V) input terminal. The control power supply unit 50, which forms the control power supply, and the capacitor C1 potential of the charging unit 20 are picked up and connected to a comparator to a comparator input to set the charging potential level of the charging unit. A comparator 30b including a resistor R16, a short junction transistor UJT which triggers the charge controller 30a when the power supply level of the charger 20 of the comparator 30b is lower than a reference voltage; A charge control signal generator 30C including a delay circuit comprising a photocoupler PC1 and a diode D6, a resistor R8, and a capacitor C5 to prevent rapid charging of the capacitor C1, and the control It is connected to the power supply unit 50 and positively outputs the "H" output signal of the monostable multivibrator (IC1) and the monostable multivibrator (IC1) in which the limit switch LS for external signal input is input as a negative edge trigger signal. A discharge control signal generator 40 including a monostable multivibrator IC2 connected as an edge trigger signal, a photocoupler PC3 turned on to an "H" output of the multivibrator IC2, and the stage To the "H" output of the stable multivibrator (IC1). And a reset unit 60 connected to the transistor Q5 turned on by the counter CT and the photocoupler PC2 for turning off the switching element T1 of the charging control unit 30a in parallel. Solenoid press, characterized in that. Solenoid presses that obtain the processing force by the driving force of the solenoid is a rod-shaped pressurized to the transverse 105 is installed through the opening 104 to the front panel 103 installed on the base plate body 101 and the front side between the transverse Sphere 107 is inserted into the guide 109 fixed to the front panel, the screw 111 is coupled to the elevating, and the other side rear side of the transverse upper fixing bracket via the tangy spring 113 from the base plate body 101 It is made by penetrating through the rod-shaped support 115 leading to (120), by fixing the end of the operating rod 117 of the solenoid (SOL) in the center portion of the transverse 105 to the solenoid to the front panel 103 Fixed jig, the jig 132 on the slider 131 is formed by forming a jig mounting unit 130, the slider 131 and the support 133 slidably coupled to the wedge groove in one front surface of the base plate 101. Fixed) The pressure bar 135 protrudes toward one side of the slider 131 to penetrate through the through hole 102 of the front panel 103 so as to press the built-in limit switch LS, and the fixing bracket 120 ) Is a solenoid press, characterized in that it is configured to limit the rise of the transverse 105 and at the same time to form a buffer (122) to mitigate the impact. The pressurizing end of the pressurizing port 107 is formed by forming a spring-loaded presser 108 for pressing the workpiece prior to pressurization, and the end 107a of the pressurizing port is formed at various ends such as a punch and a hammer. The solenoid press, characterized in that the shape is made so that it can be changed and mounted with the jig 132 according to the processing object.

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