KR101323129B1 - Mold fastener device using electromagnetic - Google Patents

Abstract

PURPOSE: A device for attaching/detaching molds by using an electromagnet is provided to improve the convenience by automatically stopping the operation of an injection molding device when the abnormal phenomenon such as incorrect mounting of the mold occurs. CONSTITUTION: A device for attaching/detaching molds by using an electromagnet comprises a device unit (100), a control unit (200), a power unit (300), and an interlocking unit of an injection molding device. The device unit includes a magnetic chuck (110), a magnetic saturation detecting sensor, and a proximity sensor. The control unit includes a magnetic chuck selecting module, a magnetic mode setting module, a clamp/unclamp selecting module, an LED display module, a button interface, a display module, and a memory module. The injection molding device is driven when an inputted saturation state value reaches the intensity of the magnetic force by comparing a saturation state value of a magnetic field of the magnetic chuck measured by the magnetic saturation detecting sensor with the intensity of the magnetic force inputted by the magnetic mode setting module. The driving of the injection molding device is stopped when the separation of the mold and the magnetic chuck is sensed by the proximity sensor.

Description

Mold detachable device using electromagnets {MOLD FASTENER DEVICE USING ELECTROMAGNETIC}

The present invention relates to a mold detachment apparatus using an electromagnet, and more particularly, to a mold detachment apparatus using an electromagnet capable of easily detaching a mold from an injection molding machine, indicating a driving state of the mold detachment apparatus and controlling the strength of magnetic force. It is about.

In general, a manual clamp such as a vise or a bolt is used as a method of attaching and detaching a mold in a mold processing machine such as a press or an injection molding machine, which takes more time to attach and detach the mold than the actual processing time required for mold processing. Problems such as an increase in time and a decrease in productivity have occurred.

These days, a lot of chucks using magnetic force are used to reduce the time required for attaching and detaching a mold.

Such magnetic chucks are classified into electronic chucks, magnetic chucks and permanent magnet chucks.

Electromagnetic chuck is an application of the magnetic force of an electromagnet. An electromagnet is a magnet that is magnetized when an electric current flows and returns to its original state when it is disconnected. When current flows through a wire, a magnetic field is generated around the wire. By using this principle, a very strong magnetic field that cannot be obtained with permanent magnets can be obtained, and the strength of the magnetic field can be changed relatively easily by artificially adjusting the current.

By the way, the electronic chuck is a mounting mechanism for closely holding the workpiece of the cast steel material, there is a problem that heat generation occurs due to the generation of magnetic force because it is necessary to continuously supply the current.

Magnetic chuck is a mounting mechanism that is magnetized by a short current supply and maintains magnetic force almost permanently without a continuous current supply. Since there is no heat generation and no continuous electricity supply is required, the magnetic chuck is disconnected during processing to interfere with the wire. Safe machining is possible without

Permanent magnet chuck is a mounting mechanism that uses only magnetic force. Unlike electronic chucks or magnetic chucks, it does not use electricity at all, so there is no deformation caused by heat generation and there is no need to install controllers or wires. There is an uncomfortable problem of detaching.

A press machine is disclosed in Korean Patent Publication No. 10-0876577 as a prior art for a mold detachment apparatus using magnetic force.

In brief, the technology disclosed above is to install the first electromagnet and the second electromagnet on the upper mold and the lower mold, and to operate the switch to turn the electromagnet on / off to engage or disengage the press mold.

However, the prior art has the disadvantage that can only turn on / off the electromagnet and can not control the strength of the magnetic force.

In another prior art, a separate channel type electronic chuck control apparatus is disclosed in Korean Patent Publication No. 10-1030669.

A brief description of the technology disclosed above relates to a control device that independently magnetizes all or part of an electric permanent electronic chuck clamping a workpiece in a processing machine to independently clamp each channel according to characteristics such as the size of the workpiece.

However, the prior art is to adjust the channel number and the magnetization intensity of the electronic chuck to process according to the characteristics of the workpiece. There is a disadvantage that there is no device for the convenience of the operator, such as stopping.

As described above, much research has been conducted on the mold detachment apparatus using magnetic force that can be used in processing machines and press machines. However, research on the mold detachment apparatus using magnetic force that can be used in injection molding machines is insufficient. There is also little research on the device.

Therefore, the mold can be easily attached and detached from the injection molding machine, the driving condition of the mold detachment device using magnetic force, the strength of the magnetic force can be adjusted, and the mold detachment device using the electromagnet that can stop the operation of the injection molding machine in the event of an abnormality is required.

The present invention has been made in response to the above requirements, the problem to be solved in the present invention can easily detach the mold in the injection molding machine, the mold using an electromagnet that can control the strength of the magnetic force to indicate the driving situation of the mold detachment device It is to provide a detachable device.

In addition, another problem to be solved by the present invention is to provide a mold detachment apparatus using an electromagnet that can improve the convenience by automatically stopping the operation of the injection molding machine when abnormalities such as the mold is not correctly mounted.

In order to solve the above problems, a mold detachment apparatus using an electromagnet according to the present invention includes an apparatus unit for detaching a mold using a magnetic chuck; A control unit which applies power to the magnetic chuck of the device unit and adjusts the intensity of the applied power; A power supply unit connecting and releasing power for driving the device unit and the control unit; Technical features are characterized in that it comprises an injection molding machine interlocking portion for driving the injection molding machine in conjunction with the apparatus and the control unit and the injection molding machine.

The mold detachment apparatus using an electromagnet according to the present invention can easily detach a mold using a magnetic chuck and control a plurality of magnetic chucks.

In addition, the injection molding machine can be driven by interlocking with the mold detaching device and the injection molding machine, thereby minimizing the time required for attaching and detaching the mold, and a single mold person who does not have special skills stands outside the injection molding machine and stands away from the mold. Can be attached and detached.

The strength of the magnetic force can be adjusted and the type of the selected magnetic chuck, the set value of the selected module, and the measured saturation value of the magnetic field can be displayed.

1 is a view schematically showing a conceptual diagram of a mold detachment apparatus using an electromagnet according to an embodiment of the present invention.
2 is a view schematically showing a configuration of a mold detachment apparatus using an electromagnet according to an embodiment of the present invention.
3 is a view schematically showing a magnetic chuck of a mold detachment apparatus using an electromagnet according to an embodiment of the present invention.
4 is a view schematically showing a panel constituting a mold detachment apparatus control unit using an electromagnet according to an embodiment of the present invention.
5 is a view schematically illustrating a mode of a magnetic force mode setting module of a mold detachment apparatus using an electromagnet according to an embodiment of the present invention.
6 is a view schematically showing a remote control constituting a remote control module of a mold detachable device using an electromagnet according to an embodiment of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may properly define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

Before describing the present invention with reference to the accompanying drawings, it should be noted that the present invention is not described or specifically described with respect to a known configuration that can be easily added by a person skilled in the art, Let the sound be revealed.

1 is a conceptual diagram of a mold detachment apparatus using an electromagnet according to an embodiment of the present invention, Figure 2 is a schematic diagram showing the configuration.

Mold detachable device using an electromagnet according to an embodiment of the present invention device unit 100; A control unit 200 for applying power to the magnetic chuck of the device unit and adjusting the intensity of the applied power; A power supply unit 300 connecting and releasing power for driving the device unit 100 and the control unit 200; The apparatus 100 and the control unit 200 is composed of an injection molding machine interlocking part 400 for driving an injection molding machine in conjunction with the injection molding machine.

In addition, the device unit 100 includes a magnetic chuck 110, a magnetic saturation sensor 120 and a proximity sensor 130, the control unit 200 is a magnetic chuck selection module 210, magnetic force mode setting Module 220, clamp / unclamp selection module 230, LED display module 240, button interface 250, display module 260, and memory module 270. It is configured to include a power module, adapter module and remote control module 310.

The device unit 100 performs a function of attaching and detaching the mold 142 by using the magnetic chuck, and includes a magnetic chuck 110, a magnetic saturation sensor 120, and a proximity sensor 130.

The magnetic chuck 110 is mounted on the fixing plate 141 and the moving plate 143 of the injection molding machine to perform the function of attaching and detaching the mold 142. The magnetic chuck 110a and the second magnetic chuck 110b are provided. FIG. 3 illustrates a schematic configuration of the magnetic chuck 110.

Preferably, the first magnetic chuck 110a and the second magnetic chuck 110b are configured to overlap each other, and the first magnetic chuck 110a is mounted on the fixing plate 141 and the second magnetic chuck 110b. Is mounted to the moving plate 143.

In addition, the magnetic chuck 110 is provided with a plurality of through-holes 111 to fix the magnetic chuck to the fixing plate 141 and the moving plate 143 of the injection molding machine.

The first magnetic chuck 110a and the second magnetic chuck 110b are connected to the fixing plate 141 and the moving plate 143 by using separate coupling members (eg, bolts) penetrating through the through hole 111. Is mounted.

The through hole 111 has a bolt for fixing the first magnetic chuck 110a and the fixing plate 141 and a bolt for fixing the second magnetic chuck 110b and the moving plate 143 on the surface of the magnetic chuck 110. The head of the bolt has a size and depth that can be inserted so as not to protrude, and a plurality of magnetic chucks (110a) are disposed to secure the fixing plate 141 and the movable plate (143).

The second magnetic chuck 110b is provided with an ejector hole 112 fixed to the ejector 145 to pass through the ejector pin 144 for pushing the molded product out of the mold 142.

Here, the ejector 145 is a device for sliding the ejector pin 144 so that the ejector pin 144 pushes the molded article in the injection molding machine by the sliding operation.

The locating ring hole 113 is provided at the center of the first magnetic chuck 110a mounted to the fixing plate 141 so that the locating ring 146 can be coupled thereto.

The locating ring 146 is a guide ring for matching the axis of the nozzle of the injection molding machine with the sprue bush of the mold, and serves to connect the injection part of the injection molding machine with the mold, and quickly and accurately using the locating ring. The mold can be set.

In the magnetic chuck 110, a plurality of cores are arranged to the left and right, and a magnetic circuit 114 including two pairs of cores is provided.

Although not shown in the figure, two polarities are generated in one core. In addition, it is divided into a nonmagnetic material so that magnetic force does not pass between each core and the core.

Here, when the magnetic chuck 110 is unclamped and the magnetic force is released, the magnets are arranged in NSNS form so that the lines of magnetic force cancel each other inside the core, and when the clamped magnetic forces are connected, the magnets are arranged in NNSS form and the magnetic force is generated. The magnetic force detaches the mold.

Preferably, a special epoxy resin having excellent heat resistance and dynamic resistance may be used to seal the magnetic circuit 114. At this time, the special epoxy resin stabilizes the temperature so as to avoid the air layer that may occur when there is a slight expansion.

The magnetic saturation sensor 120 measures the saturation value of the magnetic field.

If the magnetization progresses to a certain degree, the magnetization will not proceed anymore even if the current is increased. Thus, reaching the maximum magnetic force that the electromagnet can produce is called saturation of the magnetic field.

Preferably, the magnetic saturation detection sensor 120 measures the saturation value of the magnetic field by using a few stimulus, which is a magnetic force set by the magnetic force mode setting module 220 properly magnetic chuck 110 and the mold 142 This is to check whether the magnetic chuck 110 and the mold 142 are securely attached thereto.

That is, after confirming the magnetization state of the magnetic chuck 110 and the mold 142 by using the magnetic saturation detection sensor 120 may be able to perform a safe operation by driving the injection molding machine.

In a mold detachment apparatus according to an embodiment of the present invention, a FCS (Flip Coil System) magnetic field sensor may be used as a magnetic saturation sensor to measure the characteristics of a magnetic field using stretched wires.

Depending on the design conditions, other sensors that can measure the saturation value of the magnetic field in addition to the flip coil system (FCS) magnetic field sensor can be used.

The proximity sensor 130 detects when the mold 142 is separated from the magnetic chuck 110.

Proximity Sensor is a sensor used to check whether an object is close before it touches another object, and various types such as magnet, eddy current, hall effect, optical, ultrasonic, inductive, and capacitive, depending on the type of sensing. Are divided into sensors.

Among them, an inductive proximity sensor may be used in a mold detachment apparatus using an electromagnet according to an embodiment of the present invention.

Inductive Proximity Sensor is a sensor used to detect the surface of metal, consisting of a coil with a ferrite core, an oscillator-detector, and a solid state switch.

Briefly explaining the detection principle of the inductive proximity sensor, the magnitude of the oscillation is reduced by the metal object in the sensor, and the receiver detects this change and short-circuits the switch.

In other words, when the coil is wound around the core, an inductance is formed, and the inductance has a property of decreasing the permeability of the core. When the permeability decreases, the inductance also decreases, so that the voltage changes accordingly. will be.

Preferably, the proximity sensor 130 is located on the surface of the magnetic chuck 110 and detects and sends a signal when the mold 142 is separated from the magnetic chuck 110 by a predetermined distance or more.

As such, when a mold separation (departure) that cannot be detected by eyes occurs, the proximity sensor 130 detects the signal and sends a signal to improve the safety of the worker and reduce the incidence of defective parts of the mold due to the mold separation. .

The control unit 200 applies power to the magnetic chuck of the device unit 100, adjusts the intensity of the applied power, and receives a signal from the magnetic saturation sensor 120 and the proximity sensor 130 of the device unit 100. The magnetic chuck selection module 210, the magnetic force mode setting module 220, the clamp / unclamp selection module 230, the LED display module 240, the button interface 250, and the display module The panel constituting the control unit 260 and the memory module 270 is illustrated in FIG. 4.

Preferably, the controller 200 is located in a panel constituting the exterior of the controller as an element constituting the controller.

In the mold detachment apparatus using an electromagnet according to an embodiment of the present invention, the order of operating the control unit 200 configured as a panel is as follows.

First, turn on the power switch on the top of the panel to supply power.

If the LED display module 240 of the first magnetic chuck 110a of the magnetic chuck selection module 210 is lit by clicking the setting button of the button interface 250, the selection button of the button interface 250 is pressed.

Next, the setting button of the button interface 250 is clicked to proceed to the magnetic force mode setting module 220.

When the LED display module 240 of the magnetic force mode setting module 220 to be selected is turned on by clicking the setting button of the button interface 250, the selection button of the button interface 250 is pressed to select the up / down button 251. Set the pulse application time and period using. After the setting is completed, the magnetic force mode setting module 220 is terminated by pressing the setting button of the button interface 250 twice.

After the magnetic force mode setting module 220 is finished, the process proceeds to the clamp / unclamp selection module 230.

When the clamp LED display module of the clamp / unclamp selection module 230 is turned on, the selection button of the button interface 250 is pressed to attach the first magnetic chuck 110a and the mold 142.

When the attachment of the first magnetic chuck 110a and the mold 142 is completed, the setting button of the button interface 250 is clicked to display the LED display module 240 of the second magnetic chuck 110b of the magnetic chuck selection module 210. Press the select button of the button interface 250 when.

Next, the magnetic force mode setting module 220 is selected in the above order to set the magnetic force mode and the pulse application time and period, and when the clamp LED display module is turned on in the clamp / unclamp selection module 230, the button interface 250 is used. Press the select button of the second magnetic chuck 110b and the mold 142 to attach.

When separating the magnetic chuck 110 and the mold 142, proceed in the same manner as above, but do not select the magnetic force mode setting module 220, the button when the unclamp LED display module is turned on in the clamp / unclamp selection module 230 Pressing the select button of the interface 250 separates the magnetic chuck 110 and the mold 142.

The magnetic chuck selecting module 210 performs a function of selecting a magnetic chuck 110 that a user wants to set or clamp / unclamp magnetic force strength among the first magnetic chuck 110a and the second magnetic chuck 110b.

In general, the mold used in the injection molding machine has two stages, and thus, two magnetic chucks may be selected using the magnetic chuck selection module 210 to select one of the two magnetic chucks.

Depending on the design conditions, the number of magnetic chucks to be used in the injection molding machine of the three-stage mold can be added, and the magnetic force strength of the added magnetic chuck can be set and modularized to clamp / unclamp.

The magnetic force mode setting module 220 adjusts the strength of the magnetic force to be applied to the magnetic chuck 110 by setting the magnetic force mode, and adjusts the mode of the magnetic force mode setting module 220 according to the embodiment of the present invention. 5 is shown.

Preferably, the magnetic force mode setting module 220 may set the strength of the magnetic force to be applied to the first magnetic chuck 110a and the second magnetic chuck 110b.

The strength of the magnetic force can be set using the time and period of applying the pulse. The setting method consists of the following three modes.

The first mode is configured to set the time to apply the pulse in μsec unit mode, the second mode is configured to set the period to apply the pulse in msec unit mode, and the third mode is selected from the full pulse unit mode. It is configured to set the time in one mode. That is, the first mode is to set the pulse width time in μsec unit, the second mode is to set the pulse period in msec unit, and the third mode is to set the pulse width in μsec unit and the pulse period in msec unit. It is to set the authorization time.

The clamp / unclamp selection module 230 selects the clamp (attach) state and the unclamp (separate) state of the magnetic chuck 110 and the mold 142 to perform the function of detaching the mold 142.

Preferably, when the clamp is selected from the clamp / unclamp selection module 230, the magnetic force of the set value is applied to the magnetic chuck 110 by the magnetic force mode setting module 220 and the mold 142 is attached.

When the unclamp is selected from the clamp / unclamp selection module 230, the magnetic force transmitted to the magnetic chuck 110 is canceled to separate the mold 142 from the magnetic chuck 110.

The LED display module 240 performs a function of displaying what is the currently selected module or a working sensor.

Preferably, the LED display module 240 is disposed next to, above, or below each module in the magnetic chuck selection module 210, the magnetic force mode setting module 220, and the clamp / unclamp selection module 230 located in the panel. .

When the user selects a module, the LED display module 240 disposed next to, above, or below the selected module may be turned on.

In addition, the proximity sensor LED display module 241 and the magnetic saturation sensor LED display module 242 is disposed on the panel.

When the separation of the magnetic chuck 110 and the mold 142 is detected by the proximity sensor 130, the proximity sensor LED display module 241 is turned on, so that the user stops the work quickly after restarting the mold and restarts the mold. By assembling, you can prevent accidents during work, reduce mold failure rate and reduce working time, thereby increasing work efficiency.

After attaching the mold 142 to the magnetic chuck 110, the magnetic saturation sensor LED display module when the measured value of the magnetic saturation sensor 120 and the number of the selected magnetic chuck 110 are displayed on the display module 260. 242 is configured to light up.

According to the design conditions, the magnetic saturation sensor LED display module 242 when the magnetic saturation sensor 120 is displayed on the display module 260 after attaching both the magnetic chuck 110 and the mold 142. By turning on, the user can recognize what value is displayed on the display module 260.

The button interface 250 performs a function of selecting a module required for driving a mold detachment device and inputting a set value, and includes a selection button, a setting button, and an up / down button 251.

The selection button is a button for selecting one module among the magnetic chuck selection module 210, the magnetic force mode setting module 220, and the clamp / unclamp selection module 230.

The setting button is a button that sets the magnetic force mode in the magnetic force mode setting module 220 or releases (or ends) the setting mode.

The up / down button 251 is a button for increasing or decreasing the pulse application time and period of the magnetic force mode set by the magnetic force mode setting module 220.

According to the design conditions, the button interface 250 may be subdivided into functions such as a finish button, a malfunction button, and a quick stop button.

In addition, the button interface 250 may be selected from a button, keypad type, touch screen type, and dial type.

The display module 260 displays a type of the selected magnetic chuck 110, a set value of the selected module, and a measurement value of the magnetic saturation sensor 120.

Preferably, the display module 260 may be configured to display a value set by the operator using the button interface 250 by reconfiguring the 7-segment display device to be located on the control panel so as to reconfirm the input values.

A seven-segment display is a device that can display numbers from 0 to 9, with seven bars of liquid crystal display (LCD) arranged in an eight-character shape with squares at the top and bottom. It is designed to display Arabic numerals by turning the lights on or off.

For example, when the magnetic force mode is set, the pulse application time and period to be set are displayed, and after the magnetic chuck 110 and the mold 142 are attached, the number and magnetic saturation sensor of the attached magnetic chuck 110 are attached. The value measured by 120 is displayed.

The memory module 270 stores the values set by the magnetic chuck selection module 210 and the magnetic force mode setting module 220.

Preferably, since the mold is often used for mass production of the same product, when the same product is repeatedly produced, the setting value previously set by the memory module 270 is stored so that the magnetic chuck is selected each time to increase the strength of the magnetic force. You do not have to repeat the setup process.

That is, the strength of the magnetic force applied to the first magnetic chuck 110a by the memory module 270 and the strength of the magnetic force applied to the second magnetic chuck 110b are stored so as to repeatedly store the same product. It can be used to drive the injection molding machine.

The power supply unit 300 performs a function of connecting and releasing power for driving the device unit 100 and the control unit 200, and includes a power module, an adapter module, and a remote control module 310.

The power module performs a function of connecting and releasing power to drive the control unit, and commercial power may be used.

The adapter module connects the magnetic chuck 110 and the control unit 200 of the device unit 100 to supply a current to the magnetic chuck to apply a magnetic force.

Preferably, the adapter module may supply a current to the magnetic chuck 110 to detach the magnetic chuck 110 and the mold 142.

Due to the characteristics of the magnetic chuck 110, the applied magnetic force is maintained even by a short instant current supply, and thus, when the magnetic chuck 110 and the mold 142 are attached, the injection molding machine can be driven even by removing the adapter module. When the chuck 110 and the mold 142 are to be separated, the adapter module may be connected again to separate the mold.

The remote control module 310 performs a function to enable the operator to conveniently control the device 100, and the remote control constituting the remote control module is illustrated in FIG. 6.

Preferably, the remote control module 310 is composed of only the module that the operator needs when working and is configured in the remote control type so that the operator can conveniently control the device unit 100.

For example, the remote control module 310 may include a magnetic chuck selection module 210, a clamp / unclamp selection module 230, an LED display module 240, a button interface 250, a display module 260, and a proximity sensor LED. The display module 241 may be configured.

Looking at the mold detachment method using the mold detachment apparatus using the electromagnet described above is as follows.

First, by connecting the adapter module for connecting the magnetic chuck 110 and the control unit 200 to connect the power of the device unit 100.

The center of the mold 142 is positioned by using the locating ring 146 on the first magnetic chuck 110a mounted on the fixing plate 141 of the injection molding machine.

The first magnetic chuck 110a is selected using the magnetic chuck selection module of the controller, and the pulse application time and the period value are input using the magnetic force mode setting module 220.

After the input, the mold 142 is fixed to the first magnetic chuck 110a by using the clamp / unclamp selection module 230.

After the fixing of the first magnetic chuck 110a and the mold 142 is completed, the second magnetic chuck 110 is positioned on the second magnetic chuck 110b mounted on the moving plate 143, and then the second magnetic chuck is operated in the same manner as described above. 110b and the mold 142 are fixed.

The injection molding machine interlocking part 400 performs a function of interlocking the injection molding machine with the apparatus 100 and the controller 200.

Preferably, when the mold separation occurs and receives a signal from the proximity sensor 130, the injection molding machine interlock is configured to immediately stop the injection molding machine.

In addition, after confirming the magnetization state of the magnetic chuck 110 and the mold from the value measured from the magnetic saturation sensor 120, if the injection molding machine interlocking unit is configured to stop the injection molding machine immediately.

The mold detachment apparatus using the electromagnet according to the present invention minimizes the time required for detachment of the mold by attaching and detaching the mold using a magnetic chuck, and only one mold person without special skills stands outside the injection molding machine and is far from the mold. The mold can be attached and detached even in the state.

In addition, there is no need to form additional joints in the fixing plate of the injection molding machine to fix the mold, and there is no need to replace the fixing plate due to the wear of the joint due to long use.

In addition, the magnetic chuck is maintained due to the characteristics of the magnetic chuck, so it can be used safely even in case of power failure.

In addition, what was described above using FIG. 1 thru | or 6 described only the main matter of this invention, and this invention is limited to the structure of FIG. 1 thru | or 6 as many designs are possible within the technical scope. It is not clear.

100: device 110: magnetic chuck
110a: first magnetic chuck 110b: second magnetic chuck
111: through hole 112: ejector hole
113: locating ring hole 114: magnetic circuit
120: magnetic saturation sensor 130: proximity sensor
141: fixing plate 142: mold
143: moving plate 144: ejector pin
145: ejector 146: locating ring
200: control unit 210: magnetic chuck selection module
220: magnetic force mode setting module 230: clamp / unclamp selection module
240: LED display module 241: proximity sensor LED display module
242: magnetic saturation sensor LED display module 250: button interface
251: up / down button 260: display module
270: memory module 300: power supply
310: remote control module 400: injection molding machine linkage

Claims (10)

In the mold detachable device using an electromagnet including a device unit 100; control unit 200; power supply unit 300; injection molding machine interlocking unit 400;
The device unit 100 includes a magnetic chuck 110, a magnetic saturation sensor 120, and a proximity sensor 130. The control unit 200 includes a magnetic chuck selection module 210 and a magnetic force mode setting module 220. ), Including the clamp / unclamp selection module 230, the LED display module 240, the button interface 250, the display module 260 and the memory module 270,
(1) The device 100 performs the detachment of the mold using the magnetic chuck 110, the saturation state measurement of the magnetic chuck 110 and the detachment detection of the mold and the magnetic chuck 110,
-Inside the magnetic chuck 110 is provided with a magnetic circuit 114 in which a plurality of cores are arranged to the left and right and a pair of two cores,
-Magnetic saturation sensor 120 to measure the saturation state is a FCS (Flip Coil system) magnetic field sensor for measuring the characteristics of the magnetic field using a stretched wire,
Proximity sensor 130 is an inductive proximity sensor (Inductive Proximity Sensor) for detecting the detachment state of the mold and the magnetic chuck 110 is located on the surface of the magnetic chuck 110.
(2) The control unit 200 selects the magnetic chucks 110a and 110b, sets the magnetic force strengths of the selected magnetic chucks 110a and 110b, clamps and unclamps the selected magnetic chucks 110a and 110b, and stores the set values. Do it,
The magnetic chuck selection module 210 selects specific magnetic chucks 110a and 110b from the plurality of magnetic chucks 110.
The magnetic force mode setting module 220 is a mode for setting a pulse width time in units of μsec, a mode for setting a pulse period in units of msec, and a pulse in units of μsec for the magnetic chuck selected by the magnetic chuck selection module 210. The strength of the magnetic force is set through the mode for setting the application time of the entire pulse train having the width and pulse period in msec.
The clamp / unclamp selection module 230 clamps / unclamps the magnetic chuck selected by the magnetic chuck selection module 210, and when clamping, the pulse width and pulse period set by the magnetic force mode setting module 220. And clamp with the strength of the magnetic force having an application time,
-LED display module 240 displays the currently selected module or a working sensor,
The display module 260 displays the type of the selected magnetic chuck 110, the set value of the selected module, and the value measured by the magnetic saturation sensor 120.
-The memory module 270 stores the setting values of the magnetic chuck selection module 210 and the magnetic force mode setting module 220 to minimize the repetitive setting and improve the production efficiency of the mold,
(3) the power supply unit 300 connects and releases power for driving the device unit 100 and the control unit 200,
(4) the injection molding machine interlocking unit 400 drives the injection molding machine by interlocking the injection molding machine with the apparatus 100 and the control unit 200,
The saturation state value of the magnetic chuck 110 magnetic field measured by the magnetic saturation sensor 120 is compared with the intensity of the magnetic force input through the magnetic force mode setting module 220, and the saturation state value is inputted. When it reaches to drive the injection molding machine,
-Detachable device using an electromagnet, characterized in that by detecting the separation state of the mold and the magnetic chuck 110 by the proximity sensor 130 to stop the driving of the injection molding machine when detected as a separation state.
delete delete delete delete delete The method according to claim 1,
The power supply unit 300 includes a remote control module 310,
The controller 200 is a mold detachable device using an electromagnet, characterized in that controlled by the remote control module (310).
delete delete delete

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