KR100920002B1 - Injection gate auto cutting apparatus for using ultrasonic wave - Google Patents

Abstract

PURPOSE: An automatic injection gate cuter is provided to decrease the failure rate by making the cut surface neat and fine by cutting with ultrasonic wave. CONSTITUTION: An automatic injection gate cuter comprises a main body, a rotary jig, a first sliding jig part(310), a second sliding jig part(330), an optical sensor(320) and a product falling guide box(340). The main body is square box shape and is located on the top of a base plate. A guide hole of rectangular shape is formed on the center part of the base plate. The rotary jig part is mounted on the base plate of the main body and receives an extrudate from a robot arm. The first sliding jig includes a second seating groove. The extrudate is settled in the second seating groove. A plurality of first product discharge hole is formed on the first sliding jig to the vertical direction from the second seating groove. The third optical sensor is installed in the first sliding jig. The third optical sensor detects the settlement of the extrudate. A guide block is fixed at the both end lower part of the second sliding jig.

Description

Gate automatic cutting device for injection molding using ultrasonic wave {INJECTION GATE AUTO CUTTING APPARATUS FOR USING ULTRASONIC WAVE}

The present invention relates to an automatic gate cutting device for injection of the injection using ultrasonic waves, and in detail, after receiving the injection discharged from the robot arm of the injection machine, the injection is moved to cut the product and the gate of the injection molding using ultrasonic gate It relates to a gate automatic cutting device for injection of the injection using ultrasonic waves to perform an automated process for discharging the runner is attached.

In general, products such as buttons, covers, and other small plastic products of mobile phones, and small exterior products made of synthetic resins and accessories of various electronic devices are generally injection molded into a single mold. In the case of injection molding at the same time, a runner, which is an intermediate path for moving and injecting molten material between each disposed product, must be provided, as well as a gate, which is a narrow final molten material inflow path, between the end of the runner and the product.

In addition, as shown in FIG. 1, the injection molding 1 (product, runner, and gate connected to each other) in which the injection molding is completed in the mold is cut through the gate 5 connected to the product 3 through a post process. To remove all runners (7) and gates (5) from the product, and to remove only the product (3) cleanly necessary, the gate cutting process is not only essential, but also minimal scratches on the product during the gate cutting in consideration of product quality and productivity Generation and rapid cutting operations are also required. At this time, in the center of the runner (7) is formed a disk-shaped suction plate in the center for vacuum suction of the robot arm in the injection machine.

However, the conventional gate cutting method takes an inefficient cutting removal method in which a product, a runner, and a gate are connected to each other in a mold frame, and then takes it with one hand and cuts it with a knife. In addition to the high cost, there was a problem that the price competitiveness was extremely weakened, such as a huge cutting time required. Especially, when the gate was cut with a knife, even a minor carelessness caused a large scratch on the product where the exterior quality was particularly important. In addition to the problems leading to deterioration of quality, there was an inconvenience and time loss factor to perform additional inspection work after the cutting work is completed.

The gate cutting machine can automate the problems that occur in the process of cutting part of an injection part such as a gate through manual operation, and can lower the defective rate through increasing the production speed, improving the quality of the product and uniformizing the quality of the cut surface. have.

However, since the conventional gate cutting machine performs the cutting operation of the gate using the cutter blade, if the cutting operation is performed as it is even if the cutter blade becomes blunt or damaged by repeated cutting, the quality of the product is reduced. It is not uniform and the defective rate can be high.

The present invention is to solve the above problems, after receiving the injection discharged from the robot arm of the injection machine, by moving the injection to cut the product and the gate of the injection using ultrasonic waves and discharge the runner attached to the gate An object of the present invention is to provide an automatic gate cutting device for injection molding using ultrasonic waves, which can increase the production speed by performing an automated process, and to lower the defective rate by uniformizing the quality of the product cutting surface through ultrasonic cutting.

In addition, the present invention uses an ultrasonic wave to prevent the breakage of the injection caused by the malfunction by stopping the operation of the injection molding machine by stopping the operation of the injection molding machine by transmitting an interrupter signal to the injection molding machine if the delivery of the injection molding in the injection molding machine is not accurate Another object is to provide a gate automatic cutting device for an injection molding.

In addition, the present invention transfers the injection to the ultrasonic cutting unit by using a sliding jig when cutting the gate by using ultrasonic waves, and after the cutting is completed, the operator returns to the original position and discharges the runner to prevent the accident of the operator by ultrasonic waves. It is another object to provide an automatic gate cutting device for injection of the ultrasonic injection to prevent it in advance.

Features of the present invention for achieving the above object,

A gate automatic cutting device for cutting a gate of an injection product discharged from a robot arm of an injection molding machine, the gate cutting device comprising: a main plate having a base plate formed in a rectangular box shape and having a rectangular guide hole formed in a central portion thereof; A rotating jig unit installed on the base plate of the main body to receive the injection from the robot arm of the injection machine and then to transmit the injection; Sliding jig is installed on the base plate of the main body and sliding in one direction in the state of seating the injection material supplied from the rotating jig portion, and when the gate of the injection is cut freely dropping the product of the injection product and at the same time return to the original position Wealth; An ultrasonic cutting unit installed on the base plate of the main body to cut the gate of the injection by ultrasonic waves when the sliding jig unit is moved in one direction; A runner discharge part installed on the base plate of the main body to suck the runner with the gate of the injection molded product by vacuum suction and discharge it to the outside; And a controller for controlling the air supplied to each component to control the operation of each component, and supplying power to each component.

Here, the rotary jig portion is formed in the shape of a square plate and a rotary jig provided with a first seating groove so that the injection molded product; A first rotating air cylinder fixed to the base plate of the main body, the rod being connected to the rotating jig, and operated by air supplied from the outside to rotate the rotating jig by 180 °; A first vacuum suction plate installed on the rotary jig to suck the runner of the injection molding with a vacuum to fix the injection molding when the rotation jig rotates; And a first optical sensor installed on the rotating jig to detect whether the injection molded product is seated.

Here, the rotary jig unit and a second optical sensor is installed on the base plate of the main body to detect whether the robot arm of the injection machine is lowered; A pressure sensor for checking the vacuum pressure of the first vacuum suction plate is further provided.

Here, the sliding jig portion is formed in a rectangular plate shape is provided with a second seating groove to seat the injection molding, a plurality of first products in the vertical direction from the second seating groove which is a position corresponding to the product of the injection molding A first sliding jig in which discharge holes are formed; A third optical sensor installed on the first sliding jig and detecting whether the injection molded product is seated; A second product jig hole is formed in the center portion so that the product of the injection product falls freely and is discharged, and the first sliding jig is fixed by being spaced apart at regular intervals by a vertical frame, and the second sliding jig is fixed to both ends of the bottom surface. Wow; It is coupled to the second product outlet hole of the second sliding jig in the form of a hollow square pipe, the upper end is adjacent to the first product outlet hole of the first sliding jig, the lower end is a guide hole of the base plate of the body A product drop guide passage having a length discharged downward through the product; A product collecting tube installed at a lower end of the product dropping guide tube; LM guides provided on both side surfaces of the guide hole of the main body corresponding to the guide block of the second sliding jig; A sliding air cylinder installed at the base plate of the main body, connected to one side of the second sliding jig, and operated by air supplied from the outside to slide the second sliding jig; A coil spring installed on a vertical frame of the second sliding jig to absorb shock when contacting the ultrasonic cutting part or the runner discharge part; And a stopper disposed on upper and lower sides of the guide hole of the main body to limit the movement of the second sliding jig of the sliding jig part.

Here, the ultrasonic cutting unit and the high frequency oscillation means for generating a high frequency by the power supplied is installed on the lower end of the main body; A support column vertically installed at the base plate of the main body; A first raising and lowering air cylinder installed to enable the lifting and lowering from the support column, and the rod being operated up and down by air supplied from the outside; An oscillator having an upper end fixed to the rod of the first elevating air cylinder and generating vibration by the high frequency generated from the high frequency oscillation means; Booster for amplifying the vibration of the ultrasonic wave is fixed to the upper end of the vibrator; And an ultrasonic horn fixed to the lower end of the booster and cutting the gate of the injection molding using vibration energy transmitted from the booster.

Here, the runner discharge portion is fixed to the base plate of the main body, the second lowering air cylinder which is operated by the air supplied from the outside; A second rotating air cylinder fixed to the rod of the second lowering air cylinder and operated by air supplied from the outside; And a rotating arm having one end fixed to the rod of the second rotating air cylinder, and a second vacuum suction plate installed at the other end to suck and discharge the runner of the injection molded product seated on the sliding jig part.

Here, the control unit further comprises: an operation panel including a rotating jig unit, a sliding jig unit, a display window for counting a number of buttons and production quantities to manually control operations of the ultrasonic cutting unit and the runner discharge unit; Power supply means for supplying necessary power to each component; A plurality of solenoid valves for delivering air to the rotary jig unit, the sliding jig unit, the ultrasonic cutting unit, and the runner discharge unit according to an external control signal; A vacuum generator generating a vacuum through the air delivered from the solenoid valve and transferring the vacuum to the rotary jig part and the runner discharge part; And receiving sensing signals from the first optical sensor, the second optical sensor, the pressure sensor, and the third optical sensor of the rotary jig unit to control respective solenoid valves and simultaneously control the operation of each component. And a controller configured to display a production quantity through a display window of the operation panel using the sensing signal of the second optical sensor of the rotary jig unit as a counting signal.

Here, the controller detects whether or not the injection of the injection from the first optical sensor, and whether the robot arm of the injection machine is lowered from the second optical sensor to determine whether the injection of the injection, and the pressure When the vacuum pressure is maintained at a predetermined level or more through a sensor, the suction jig is determined to rotate the rotary jig unit, and a sensing signal is not detected from the first optical sensor and the second optical sensor or the vacuum sensed by the pressure sensor. When the pressure is less than a certain level, an interrupter signal is generated by the injection molding machine to stop the operation of the injection molding machine and to stop the operation of each driving unit.

Here, the controller slides the sliding jig unit when a sensing signal is input from the third optical sensor, and a sensing signal is input from the third optical sensor to lower the ultrasonic cutting unit through sequence control, and then the ultrasonic cutting. When the addition is interviewed with the injection molding, ultrasonic waves are generated to cut the gate of the injection molding to drop the product, and then the ultrasonic cutting part is raised, the sliding jig part is returned, the runner discharge part is rotated, and the runner is lowered. After vacuum adsorption, the runner discharge part is raised and then rotated to its original position to discharge the runner to the outside.

According to the automatic gate cutting device of the injection molding using the ultrasonic wave of the present invention configured as described above, after receiving the injection discharged from the robot arm of the injection machine, the injection is moved to cut the product and the gate of the injection molding using the ultrasonic gate Production speed can be increased by performing an automated process of discharging the runner with the addition, and the defect rate can be lowered by uniformizing the quality of the product cutting surface through ultrasonic cutting.

In addition, according to the present invention, when the delivery of the injection molding in the injection molding machine is not made, the interrupter signal is transmitted to the injection molding machine to stop the operation of the injection molding machine and also stops its own operation, thereby preventing damage to the injection molding product.

In addition, according to the present invention, when cutting the gate using ultrasonic waves, the injection molding is transferred to the ultrasonic cutting unit by using a sliding jig, and after cutting is completed, the operator returns to the original position and discharges the runner to generate a safety accident by ultrasonic waves. Can be prevented in advance.

Hereinafter, with reference to the accompanying drawings, the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention will be described in detail.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

Figure 2 is a perspective view showing the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention, Figure 3 is a front view showing the configuration of the gate automatic cutting device for injection molding using ultrasonic waves according to the present invention, Figure 4 Figure 5 is a side view showing the configuration of the automatic gate cutting device for injection using ultrasonic waves according to the invention, Figure 5 is a partial cross-sectional perspective view showing the configuration of the sliding jig of the gate automatic cutting device for injection injection using ultrasonic waves, Figure 6 7 is a block diagram showing the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention, Figure 7 to Figure 13 is an operation explanatory view showing the operation of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention.

2 to 13, the gate automatic cutting device 10 for injection molding using ultrasonic waves according to the present invention includes a main body 100, a rotating jig part 200, a sliding jig part 300, and an ultrasonic wave. The cutting unit 400, the runner discharge unit 500, and the control unit 600.

First, the main body 100 is formed in a rectangular box shape, and a base plate 120 having a rectangular guide hole 110 is formed on a top surface thereof. Here, the main body 100 is preferably provided with a caster 130 on the bottom so as to be movable.

In addition, the rotary jig unit 200 includes a rotary jig 210, a first rotary air cylinder 220, a first vacuum suction plate 230, a first optical sensor 240, and a second optical sensor 250. ) And a pressure sensor 260.

Rotating jig 210 is formed in the form of a square plate is provided with a first seating groove 211 to seat the injection, the first suction plate hole 213 is installed in the central portion of the first vacuum suction plate 230 to be described later ) Is provided, and the first optical sensor hole 215 is provided on the side of the first suction plate hole 213, the first optical sensor 240 is installed.

The first rotary air cylinder 220 is fixed by the first vertical panel 221 on the base plate 120 of the main body 100, a rod is connected to the rotary jig 210, and in the external compressor 20 The sliding jig unit 300, which will be described below, is operated by the air supplied through the solenoid valve 630 of the controller 600 to be described below to rotate the rotary jig 210 by 180 ° to produce an injection of the rotary jig 210. ).

The first vacuum adsorption plate 230 is fixed to the first adsorption plate hole 213 of the rotary jig 210 and is injected using the vacuum pressure supplied from the vacuum generator 640 of the controller 600 to be described below. The runner is sucked to fix the injection product during the rotation of the rotating jig 210.

The first optical sensor 240 is operated by the power supplied from the control unit 600, and is installed and fixed in the first optical sensor hole 215 of the rotary jig 210 to detect whether the injection molded product is seated.

The second optical sensor 250 is fixedly installed on the same line corresponding to the lowering position of the robot arm 30 of the injection molding machine by the second vertical panel 251 on the base plate 120 of the main body 100, thereby providing the robot of the injection molding machine. It detects whether the arm 30 is lowered.

The pressure sensor 260 is installed on the base plate 120 of the main body 100 to check the vacuum pressure in the first vacuum adsorption plate 230.

In addition, the sliding jig unit 300 includes a first sliding jig 310, a third optical sensor 320, a second sliding jig 330, a product dropping guide cylinder 340, and a product collecting cylinder 350. ), An LM guide 360, a sliding air cylinder 370, a coil spring 380, and a stopper 390.

The first sliding jig 310 is formed in the shape of a square plate and is provided with a second seating groove 311 to seat the injection molding, and a plurality of vertical seating holes in the second seating groove 311 corresponding to the product of the injection molding. The first product discharge hole 313 is formed. Here, the first sliding jig 310 is formed with a second optical sensor hole 315 in which the third optical sensor 320 is installed.

The third optical sensor 320 is operated by the power supplied from the control unit 600, and is installed in the second optical sensor hole 315 of the first sliding jig 310 to detect whether the injection molded product is seated.

In the second sliding jig 330, a second product discharge hole 331 is formed at the center portion so that the product of the injection product falls freely and is discharged, and the first sliding jig 310 is spaced apart by four vertical frames 333. Spaced and fixed, the guide block 335 is fixed to both ends of the bottom.

The product dropping guide tube 340 is vertically coupled to the second product discharge hole 331 of the second sliding jig 330 in the form of a hollow rectangular pipe, the top of which discharges the first product of the first sliding jig 310 Adjacent to the hole 313, the lower end has a length discharged downward through the guide hole 110 of the base plate 120 of the main body is fixed to the installation.

The product collection container 350 may be detachably installed at a lower end of the product drop guide container 340 to collect a product falling through the product drop guide container 340.

The LM guide 360 is provided at both sides of the guide hole 110 of the main body 100 corresponding to the guide block 335 of the second sliding jig 330 so as to slide the second sliding jig 330 up and down on the drawing. Is installed.

The sliding air cylinder 370 is installed on the base plate 120 of the main body 100, one side of the second sliding jig 330 is connected to the rod, and the solenoid valve of the control unit 600 in the compressor 20. It is operated by the air supplied through 630 to slide the second sliding jig 330.

The coil spring 380 is installed on each vertical frame 333 of the second sliding jig 330 to absorb shock when contacting the ultrasonic cutting unit 400 or the runner discharge unit 500 to be described later.

The stopper 390 is installed on the upper and lower sides of the guide hole 110 of the main body 100 to limit the movement of the second sliding jig 330.

In addition, the ultrasonic cutting unit 400, the high frequency oscillation means 410, the support column 420, the first elevating air cylinder 430, the vibrator 440, the booster 450, and the ultrasonic horn ( 460).

The high frequency oscillation means 410 is a known configuration applied to a conventional ultrasonic cutting machine to generate a high frequency by the power supplied is installed on the lower end of the main body 100.

The support pillar 420 is perpendicular to the base plate 120 of the main body 100 to support the first lifting air cylinder 430, the vibrator 440, the booster 450, and the ultrasonic horn 460. Is installed.

The first raising and lowering air cylinder 430 is installed to enable the lifting and lowering manually in the support pillar, the rod is operated up and down by the air supplied from the compressor 20 through the solenoid valve 630 of the control unit 600 do.

The vibrator 440 is fixed to the rod of the first lifting air cylinder 430 in a known configuration applied to a conventional ultrasonic cutting machine, and generates vibration by the high frequency generated from the high frequency oscillation means 410.

The booster 450 amplifies the vibration of the ultrasonic wave generated by fixing the upper end to the lower end of the vibrator 440 in a known configuration applied to a conventional ultrasonic cutting machine.

The ultrasonic horn 460 is fixed to the lower end of the booster 450 in a known configuration applied to a conventional ultrasonic cutting machine, and cuts the gate of the injection molding using the vibration energy transmitted from the booster 450.

Meanwhile, the runner discharge part 500 includes a second elevating air cylinder 510, a second rotating air cylinder 520, and a rotating arm 530.

The second lifting air cylinder 510 is fixedly installed on the base plate 120 of the main body by the second vertical panel 511, and is supplied from the compressor 20 through the solenoid valve 630 of the controller 600. It is operated by air.

The second rotary air cylinder 520 is fixed to the rod of the second elevating air cylinder 510 by a horizontal panel 521, and is supplied from the compressor 20 through the solenoid valve 630 of the controller 600. It is operated by air.

One end of the rotary arm 530 is fixed to the rod of the second rotary air cylinder 520, and a second vacuum adsorption plate 531 is installed at the other end to adsorb and discharge the runner of the injection molded on the sliding jig 300. do. Here, the second vacuum adsorption plate 531 absorbs the runner of the injection molding using the vacuum pressure supplied from the vacuum generator 640 of the control unit 600, and then releases the vacuum when the rotation arm 530 returns to its original position. Drain the runner to the outside.

The control unit 600 includes an operation panel 610, a power supply unit 620, a solenoid valve 630, a vacuum generator 640, and a controller 650.

The operation panel 610 is installed to face the front of the ultrasonic cutting unit 400, and the rotary jig unit 200, the sliding jig unit 300, the ultrasonic cutting unit 400 and the runner discharge unit 500 A plurality of buttons 611 and a display window 613 for counting production quantities are provided to manually control the operation. Here, the operation panel 610 further includes a button 611 for power on / off, automatic / manual mode switching, and start / stop.

The power supply unit 620 receives commercial power and supplies necessary power to each component.

The solenoid valve 630 may include the first rotary air cylinder 220 of the rotary jig unit 200, the sliding air cylinder 370 of the sliding jig unit 300, and the like according to a control signal of the controller 650 to be described below. The first lowering air cylinder 430 of the ultrasonic cutting unit 400, the second lowering air cylinder 510 of the runner discharge unit 500, and the second rotating air cylinder 520 of the compressor 20. Deliver air.

The vacuum generator 640 generates a vacuum through the air delivered from the solenoid valve 630 according to the control of the controller 650 to generate the first vacuum suction plate 230 and the runner discharge part 500 of the rotary jig part 200. Transfer to the second vacuum adsorption plate 531.

The controller 650 may include a first optical sensor 240, a second optical sensor 250, a pressure sensor 260, and a third optical sensor 320 of the sliding jig 300. Receives a sensing signal from the control the respective solenoid valve 630 and at the same time to control the operation of each component, the operation by using the sensing signal of the second optical sensor 250 of the rotary jig unit 200 as a counting signal The production quantity is displayed through the display window of the panel 610, and when a signal is input through the operation panel 610, it controls the operation of each component. Here, the controller 650 may display by displaying the number of cycles by multiplying the number of products being cut due to one cycle when displaying the production quantity.

In addition, the controller 650 detects whether or not the injection of the injection from the first optical sensor 240, and whether the robot arm 30 of the injection machine is lowered from the second optical sensor 250 determines whether the injection of the injection. When the vacuum pressure is maintained at a predetermined level or more through the pressure sensor 260, the adsorption of the ejected material is judged to rotate the rotating jig unit 200, but is sensed by the first optical sensor 240 and the second optical sensor 250. When the signal is not detected or the vacuum pressure sensed by the pressure sensor 260 is less than a certain level, an interrupter signal is generated by the injection machine to stop the operation of the injection machine and at the same time, the operation of each drive unit is stopped.

In addition, the controller 650 may slide the sliding jig unit 300 when a sensing signal is input from the third optical sensor 320, and the sensing signal may be input from the third optical sensor 320 to control the ultrasonic cutting unit. When the ultrasonic cutting unit 400 is lowered after the 400 is interviewed with the injection molding, ultrasonic waves are cut to cut the gate of the injection molding product, and then the ultrasonic cutting unit 400 is raised, and the sliding jig unit 300 is again. Rotate the runner discharge unit 500 and then descend to rotate the runner of the injection by vacuum adsorption, and raises the runner discharge unit 500 and then rotates to the original position to discharge the runner to the outside. At this time, when the sensing signal is not detected from the third optical sensor 320, the controller 650 stops the operation of the injection molding machine by generating an interrupter signal to the injection molding machine and stops the operation of each driving unit.

Hereinafter, with reference to the accompanying drawings, the operation of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention will be described in detail.

First, the automatic gate cutting device of the injection molding using ultrasonic waves according to the present invention is installed at the dropping point of the robot arm of the injection molding, the cutting cycle consisting of rotation-sliding-cutting-discharge from the injection discharge point of the robot arm to the next injection discharge point Proceed once.

Then, the setting is completed, the injection of the robot arm 30 is sucked in the injection machine in the state that the power is turned on as shown in Figure 7 and seated on the rotary jig 210.

Then, the controller 650 detects the fall of the robot arm 30 through the second optical sensor 250 to control the vacuum generator 640 to generate the vacuum pressure through the first vacuum adsorption plate 230.

In this state, when the injection molded product is seated on the rotary jig and the adsorption plate of the injection adsorbed through the first vacuum adsorption plate 230 is fixed, the controller 650 detects the presence of the injection product through the first optical sensor 240, and pressure Check the pressure in the first vacuum adsorption plate 230 through the sensor 260, the injection is present, if the vacuum pressure is above a certain pressure is determined to be the correct loading of the injection as shown in FIG. Rotate 220). At this time, the controller 650 generates an interrupter signal to the injection machine when the sensing signal is not detected from the first optical sensor 240 and the second optical sensor 250 or when the vacuum pressure sensed by the pressure sensor 260 is less than a certain level. To stop the operation of the injection molding machine and to stop the operation of each drive unit.

As the first rotating air cylinder 220 rotates, the rotating jig 210 having the injection molding fixed thereon is interviewed with the first sliding jig 310. In this case, the controller 650 senses a sensing signal of the third optical sensor 320. When is input, the vacuum pressure in the first vacuum adsorption plate 230 is removed to cause the injection to fall to the first sliding jig 310 and then rotate the first rotating air cylinder 220 to return the rotary jig 210 to its original position.

After the sensing signal is input from the third optical sensor 320, the controller 650 delays the rotation jig 210 for a time to return to its original position, and then operates the sliding air cylinder 370 as illustrated in FIG. 9. As described above, the first sliding jig 310 and the second sliding jig 330 are moved to the bottom surface of the ultrasonic horn 460 of the ultrasonic cutting unit 400. At this time, the second sliding jig 330 is stopped at a predetermined point by the stopper 390. In addition, when the sensing signal is not detected from the third optical sensor 320, the controller 650 generates an interrupter signal to the injection machine to stop the operation of the injection molding machine and to stop the operation of each driving unit.

Thereafter, the controller 650 lowers the first elevating air cylinder 430 of the ultrasonic cutting unit 400 to interview the ultrasonic horn 460 with the first sliding jig 310 as illustrated in FIG. 10. Next, the high frequency oscillation means 410 is operated to vibrate the ultrasonic horn 460 while the high frequency generated through the vibrator 440 is amplified through the booster 450. At this time, when the ultrasonic horn 460 is interviewed with the first sliding jig 310 by the coil spring 380, the impact is alleviated.

When the gate of the injection seated on the first sliding jig 310 is cut by the vibration energy of the ultrasonic horn 460, the product is guided through the first product discharge hole 313 of the first sliding jig 310. Free fall into the barrel 340 is collected in the product collection container 350.

When the cutting of the product is completed, the controller 650 raises the first lowering air cylinder 430 and then operates the sliding air cylinder 370 as shown in FIG. 11 to operate the first sliding jig 310 and the second. The sliding jig 330 is returned to its original position. At this time, the second sliding jig 330 is stopped at a predetermined point by the stopper 390.

When the second sliding jig 330 is in the original position, the controller 650 rotates the second rotary air cylinder 520 of the runner discharge part 500 as illustrated in FIG. 12 to move the rotary arm 530 to the first sliding jig. After moving to the top 310, the second lifting air cylinder 510 is lowered to allow the second vacuum suction plate 531 installed on the rotary arm 530 to be interviewed with the suction plate of the injection molded product.

Then, the controller 650 controls the vacuum generator 640 to generate a vacuum pressure through the second vacuum adsorption plate 531 to adsorb the runner, and then, as illustrated in FIG. 13, the second lifting air cylinder 510. ) Is raised to its original position, and the second rotary air cylinder 520 is returned to its original position.

Then, the controller 650 releases the vacuum of the second vacuum suction plate 531 to freely drop the runner and discharge it to the outside.

On the other hand, the operator may directly control each step process through the operation panel 610 of the control unit 600.

As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

1 is a perspective view showing the configuration of a typical injection molding,

Figure 2 is a perspective view showing the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention,

Figure 3 is a front view showing the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention,

Figure 4 is a side view showing the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention,

Figure 5 is a partial cross-sectional perspective view showing the configuration of the sliding jig portion of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention,

Figure 6 is a block diagram showing the configuration of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention,

7 to 13 is an operation explanatory diagram showing the operation of the automatic gate cutting device for injection molding using ultrasonic waves according to the present invention.

<Explanation of symbols on main parts of the drawings>

110: main body 200: rotating jig portion

300: sliding jig portion 400: ultrasonic cutting portion

500: runner discharge portion 600: control unit

Claims (9)

In the gate automatic cutting device for cutting the gate of the injection ejected from the robot arm of the injection machine, A main body formed in a rectangular box shape and having a base plate formed on a top thereof with a guide hole having a rectangular shape in a central portion thereof; A rotating jig unit installed on the base plate of the main body to receive the injection from the robot arm of the injection machine and then to transmit the injection; The first sliding groove is formed in the shape of a square plate is provided with a second seating groove to seat the injection molding, a plurality of first product outlet holes in the vertical direction from the second seating groove which is a position corresponding to the product of the injection molding A jig, a third optical sensor installed on the first sliding jig for detecting whether the injection molded product is mounted, and a second product discharge hole are formed at a central portion to freely discharge the product of the injection molded product, and the first sliding The jig is fixed by spaced apart by a vertical frame, the second sliding jig fixed to the guide block at both ends of the bottom, and in the form of a hollow rectangular pipe vertically coupled to the second product outlet of the second sliding jig, The upper end is adjacent to the first product discharge hole of the first sliding jig, and the lower end is downward through the guide hole of the base plate of the main body. A product dropping guide tube installed to have a length discharged to the product, a product collecting tube installed at a lower end of the product dropping guide cylinder, and an LM guide installed at both side surfaces of the guide hole of the main body corresponding to the guide block of the second sliding jig; A sliding air cylinder installed on the base plate of the main body, and connected to one side of the second sliding jig, and operated by air supplied from the outside to slide the second sliding jig, and the second sliding A sliding jig having a coil spring installed on a vertical frame of the jig and absorbing an impact, and a stopper disposed on upper and lower sides of the guide hole of the main body to limit movement of the second sliding jig; An ultrasonic cutting unit installed on the base plate of the main body to cut the gate of the injection by ultrasonic waves when the sliding jig unit is moved in one direction; A runner discharge part installed on the base plate of the main body to suck the runner with the gate of the injection molded product by vacuum suction and discharge it to the outside; And An automatic gate cutting device for injection molding using ultrasonic waves, comprising: a control unit for controlling the air supplied to each component to control the operation of each component, and supplying power to each component. The method of claim 1, The rotary jig unit, A rotating jig formed in a rectangular plate shape and having a first seating groove to seat the injection molded product; A first rotating air cylinder fixed to the base plate of the main body, the rod being connected to the rotating jig, and operated by air supplied from the outside to rotate the rotating jig by 180 °; A first vacuum suction plate installed on the rotary jig to suck the runner of the injection molding with a vacuum to fix the injection molding when the rotation jig rotates; And The automatic cutting device for the gate of the injection molding using ultrasonic waves, characterized in that formed in the rotary jig comprises a first optical sensor for detecting whether the injection is mounted. The method of claim 2, The rotary jig unit, A second optical sensor installed on the base plate of the main body to detect whether the robot arm of the injection machine is lowered; And a pressure sensor for checking the vacuum pressure of the first vacuum suction plate. delete The method of claim 1, The ultrasonic cutting unit, High frequency oscillation means for generating a high frequency by the power supplied and installed at the lower end of the main body; A support column vertically installed at the base plate of the main body; A first raising and lowering air cylinder installed to enable the lifting and lowering from the support column, and the rod being operated up and down by air supplied from the outside; An oscillator having an upper end fixed to the rod of the first elevating air cylinder and generating vibration by a high frequency generated from the high frequency generating means; Booster for amplifying the vibration of the ultrasonic wave is fixed to the upper end of the vibrator; And Fixed to the lower end of the booster, the automatic gate cutting device using an ultrasonic injection, characterized in that made of an ultrasonic horn for cutting the gate of the injection using the vibration energy transmitted from the booster. The method of claim 1, The runner discharge portion, A second lifting air cylinder fixed to the base plate of the main body and operated by air supplied from the outside; A second rotating air cylinder fixed to the rod of the second lowering air cylinder and operated by air supplied from the outside; And One end is fixed to the rod of the second rotary air cylinder, and a second vacuum suction plate is installed at the other end, the ultrasonic arm comprising a rotating arm for adsorbing and discharging the runner of the injection molded product seated on the sliding jig part. Gate automatic cutting device of injection molding. The method of claim 3, wherein The control unit, An operation panel having a rotating jig, a sliding jig, a display window for counting a number of buttons and production quantities to manually control operations of the ultrasonic cutting unit and the runner discharge unit; Power supply means for supplying necessary power to each component; A plurality of solenoid valves for delivering air to the rotary jig unit, the sliding jig unit, the ultrasonic cutting unit, and the runner discharge unit according to an external control signal; A vacuum generator generating a vacuum through the air delivered from the solenoid valve and transferring the vacuum to the rotary jig part and the runner discharge part; And The sensing signal is input from the first optical sensor, the second optical sensor, the pressure sensor, and the third optical sensor of the sliding jig unit to control the respective solenoid valves and simultaneously control the operation of each component. And a controller for displaying the production quantity through the display window of the operation panel using the sensing signal of the second optical sensor of the rotary jig unit as a counting signal. The method of claim 7, wherein The controller, Detect whether the injection of the injection molding is detected from the first optical sensor, and whether the robot arm of the injection machine is lowered from the second optical sensor to determine whether the injection of the injection, and the vacuum pressure is constant through the pressure sensor If it is maintained above the rotation of the jig to determine the adsorption of the injection, when the sensing signal is not detected from the first optical sensor and the second optical sensor or the vacuum pressure sensed by the pressure sensor is less than a certain The automatic cutting device for gate injection using ultrasonic waves, characterized in that to generate an interrupt signal to stop the operation of the injection molding machine and at the same time stop the operation of each drive unit. The method of claim 7, wherein The controller, When the sensing signal is input from the third optical sensor, the sliding jig unit is slid. The sensing signal is input from the third optical sensor, and the ultrasonic cutting unit is lowered through the sequence control. After cutting the gate of the injection molding to drop the product, the ultrasonic cutting portion is raised, the sliding jig portion is in place, the runner discharge portion is rotated and lowered to suck the vacuum of the runner of the injection and then the runner The automatic gate cutting device using the ultrasonic injection, characterized in that for discharging the runner to the outside by rotating the discharge to the original position after raising the discharge.

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