KR101107618B1 - Device for washing hot runner - Google Patents

Abstract

PURPOSE: A hot runner washing machine is provided to reduce washing time and to reduce the waste of rinse solution by returning cleaning water to a storage tank after passing through an electromagnet filter and a micro-filter. CONSTITUTION: A hot runner washing machine comprises a storage tank(10), a dispenser(70), an injection connector(72), an exhaustion connector(73), a flow metering valve(77), a flow meter(76), and a flux controlling part(78). The rinse solution of the storage tank is provided to the dispenser by a circulating pump(30). The injection connector, connected to the dispenser, is connected to each upper end of the hot runners. The exhaustion connector is connected to the bottom of each hot runner. The flow metering valve and flow meter are arranged in the backend of the exhaustion connector. The flux information of the flow meter is transmitted to the flux controlling part. The flux controlling part detects a flow rate flowing to the exhaustion connector and controls the opening and closing of the flow metering valve.

Description

Hot Runner Washer {DEVICE FOR WASHING HOT RUNNER}

The present invention relates to a hot runner washer for washing a hot runner of a mold, and more particularly, the washing liquid of a storage tank is supplied to a distributor by a circulation pump, and is distributed and supplied to each hot runner formed in the mold by the distributor. The present invention relates to a hot runner washer having a washing solution circulation structure in which synthetic resin carbides and foreign substances adhering to the hot runner and the hot runner are washed by the electromagnet filter and the micro filter and then returned to the storage tank.

In order to prevent the formation of a product due to rapid cooling of the resin during injection molding, a mold including a hot runner is used to flow the resin with heat to the side of the product line.

Since the mold temperature of the hot runner (runner) rises to about 300 degrees, foreign substances generated by carbonization of the synthetic resin are generated inside the hot runner, and periodic cleaning and management are required to remove such foreign substances.

"Mold washing machine" is introduced in Korean Utility Model Registration No. 20-0312578 (registered April 24, 2003).

The mold washing apparatus includes a frame having an upper opening, a post protruding from an inner center of the frame, a plate-shaped plate connected to a top of the post by a rotating member, and a washing oil nozzle attached to one side of the frame. .

However, the mold washing apparatus has a hassle that the user has to hold the washing fluid by hand and spray the mold one by one, and the washing liquid is not recycled in the process of washing the mold, and the waste of the washing liquid is severely included in the hot runner. Difficult to easily remove the foreign matter, there was a problem that takes a long time to wash.

Accordingly, an object of the present invention is to supply the washing liquid of the storage tank to the distributor by the circulation pump, the distribution liquid is supplied to each hot runner formed in the mold in the distributor, to wash the synthetic resin carbide and foreign matter stuck to each hot runner, The present invention provides a hot runner washer having a washing solution circulation structure in which the wash water having been washed with the hot runner is filtered by an electromagnet filter and a micro filter and then returned to the storage tank.

Hot runner washer according to the present invention for achieving the above object is a device for washing the hot runner of the mold by the washing liquid circulation method, the washing liquid of the storage tank is supplied to the distributor by the circulation pump, each formed in the mold in the distributor It is distributed to the hot runner of, the synthetic resin carbide and foreign matter adhering to each hot runner is washed, the washing liquid washing the hot runner is filtered by an electromagnet filter and a micro filter, and the filtered washing liquid is returned to the storage tank It is done.

When the first three-way valve is disposed between the circulation pump and the distributor, and the first three-way valve is selected as the bypass, the washing liquid discharged from the circulation pump is supplied to the electromagnet filter through the bypass line, and the first three-way valve is washed. If selected, the washing solution is characterized in that the hot runner is washed through the distributor, and then supplied to the electromagnet filter.

The second three-way valve is disposed between the storage tank and the circulation pump, when the second three-way valve is selected as the supply, the washing liquid is supplied from the washing liquid supply container connected to the supply line, and the washing liquid is stored in the storage tank through the circulation line. It is characterized by.

The third three-way valve is disposed between the circulation pump and the first three-way valve, when the third three-way valve is selected as the discharge, characterized in that the washing liquid of the storage tank is discharged to the washing liquid discharge through the discharge line.

The injection connector connected to the distributor of the distributor is connected to the upper end of the hot runner, respectively, the discharge connector is connected to the lower end of each hot runner, the flow control valve and the flow meter is arranged at the rear end of the discharge connector, the flow information of the flow meter is The flow rate control unit is characterized in that the flow rate control unit grasps the flow rate flowing through each discharge connector, the flow rate control unit controls the opening and closing of each flow control valve.

An emergency control unit and a pressure gauge are disposed between the distributor and the first three-way valve, and the pressure gauge transmits the pressure information of the cleaning liquid supplied to the hot runner to the emergency control unit. By judging, the operation of the circulation pump is stopped, the first three-way valve is selected as a bypass, and the supply of the washing liquid to the distributor is blocked.
Hot runner cleaner according to the present invention for achieving the above object is a storage tank 10, the first to third three-way valve (20, 40, 50), the circulation pump 30, in the movable case 100, Electromagnet filter (60), micro filter (65), flow meter (76), flow control valve (77), flow control unit (78), inlet and outlet connectors (72, 73) are included for convenient movement to the washing place. It features.

As a result, the hot runner washer is supplied with the cleaning liquid from the storage tank to the distributor by the circulation pump, and is distributed to the respective hot runners formed in the mold, thereby cleaning the synthetic resin carbide and the foreign matter stuck to the respective hot runners. After washing the hot runner, the washing water is filtered by the electromagnet filter and the micro filter, and the washing liquid circulation structure is returned to the storage tank, thereby reducing the waste of the washing liquid and reducing the washing time.

1 is a perspective view showing a hot runner washer according to an embodiment of the present invention
2 is a block diagram showing a hot runner cleaner according to an embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2, the hot runner cleaner according to the present invention is a device for washing the hot runner (A1) of the mold (A) by the washing solution circulation method.

The washing liquid of the storage tank 10 is supplied to the distributor 70 by the circulation pump 10, and is distributed to the respective hot runners A1 formed in the mold A in the distributor 70, so that each hot runner ( Synthetic resin carbide and foreign matter adhering to A1) are washed, the washing liquid washing the hot runner A1 is filtered by the electromagnet filter 60 and the micro filter 65, and the filtered washing liquid is returned to the storage tank 10. do.

When the first three-way valve 50 is disposed between the circulation pump 30 and the distributor 70, and the first three-way valve 50 is selected as a bypass, the washing liquid discharged from the circulation pump 30 is bypassed. If the first three-way valve 50 is selected to be washed through the line (5), and the first three-way valve (50) is selected for washing, the cleaning liquid is washed through the dispenser 70 and then the electromagnet filter (60) Is supplied.

When the second three-way valve 20 is disposed between the storage tank 10 and the circulation pump 30 and the second three-way valve 20 is selected as the supply, the washing liquid supply container 7 connected to the supply line 3 is provided. ) Is supplied with the washing liquid, and the washing liquid is stored in the storage tank 10 through the circulation line 1.

When the third three-way valve 40 is disposed between the circulation pump 30 and the first three-way valve 50 and the third three-way valve 40 is selected as the discharge, the washing liquid of the storage tank 10 is discharged. Through (4) is discharged to the washing liquid discharge container (8).

The injection connector 72 connected to the distributor of the distributor 70 is connected to the top of the hot runner A1, respectively, and the discharge connector 73 is connected to the bottom of each hot runner A1, and the discharge connector 73 is connected. The flow rate control valve 77 and the flow meter 76 are disposed at the rear end of the flow path, flow rate information of the flow meter 76 is transmitted to the flow rate control unit 78, and the flow rate control unit 78 is connected to each discharge connector 73. By grasping the flow rate, the flow rate control unit 78 controls the opening and closing of each flow control valve 77.

As a result, when the flow rate of any one of the hot runners A1 is reduced, the flow meter 76 connected to the discharge connector 73 senses the flow rate and transmits the flow rate information to the flow rate control unit 78.

The flow control unit 78 receiving the flow rate information of the hot runner A1 determines that the foreign matter is stuck in the hot runner A1 whose flow rate is reduced, and the flow control valve connected to the remaining discharge connector 73 whose flow rate is not reduced. Block 77.

For this reason, the washing liquid dispensed from the dispenser 70 and flowed to each hot runner A1 flows to the hot runner A1 with reduced flow rate, and foreign matter contained in the hot runner A1 is easily removed.

Storage tank 10, first to third three-way valve (20, 40, 50), circulation pump 30, electromagnet filter (60), micro filter (65), flow meter (76) in movable case (100) , Flow control valve 77, flow control unit 78, the inlet and outlet connectors (72, 73) is included, there is an advantage that it is convenient to move to the washing place.

The wheel 9 is disposed at the bottom of the case 100.

The electromagnet filter 60 filters the metal components included in the cleaning liquid.

The micro filter 65 filters the fine foreign matters contained in the cleaning liquid.

An emergency control unit 75 and a pressure gauge 75a are disposed between the distributor 70 and the first three-way valve 50 so that the pressure information of the washing liquid supplied from the pressure gauge 75a to the hot runner A1 can be stored. 75, and if the pressure flowing to the hot runner (A1) is greater than or equal to the threshold value, the emergency control unit 75 determines that the abnormality, the operation of the circulation pump 30 is stopped, and the first three-way valve 50 is Selected as a pass, the cleaning liquid is blocked from being supplied to the dispenser 70.

That is, when the hot runner A1 of the mold A is blocked by foreign matter, damage is caused to the distributor 70, the circulation line 1, or the like, and thus, the emergency control unit 75 prevents such damage.
Referring to the washing process according to the configuration as described above are as follows.

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First, in a state where the storage tank 10 is empty, in order to fill the storage tank 10 with the washing liquid, the third three-way valve 40 is closed, and the second three-way valve 20 is selected as a supply state. When the circulation pump 30 is driven while the three-way valve 50 is selected as the bypass, the external washing liquid flows into the circulation line 1 through the supply line 3, and the bypass line 5 and the electromagnet filter. Passed through the 60 and the micro filter 65 is stored in the storage tank (10).

When a sufficient amount of the washing liquid is stored in the storage tank 10, the second three-way valve 20 is selected to be in a circulating state, and the washing liquid stored in the storage tank 10 is circulated to the circulation line 1.

Thereafter, in the state in which the mold A to be cleaned is disposed, the injection connector 72 and the discharge connector 73 are connected to the upper and lower ends of the plurality of hot runners A1 formed in the mold A, respectively.

When the first three-way valve 50 is selected to be washed, the washing liquid circulated to the bypass line 5 flows into the distributor 70, and the washing liquid is injected into the mold 70 through an injection connector 72 connected to the distributor 70. Is injected into the hot runner A1.

The washing liquid washing the hot runner A1 is discharged to the electromagnet filter 60 and the micro filter 65 through the discharge connector 73.

That is, after the washing liquid circulating in the circulation line 5 is branched in the distributor 70, the hot runner A1 of the mold A is washed through the injection connector 72, and then the electromagnet filter 60 and the micro It is circulated while filtering in the filter 65.

When the flow rate of one of the plurality of discharge connectors 73 of the plurality of discharge connectors 73 connected to the hot runner A1 of the mold A is reduced while the mold is washed by the hot runner washer, the flow control unit 78 ) Identifies the discharge connector 73 through which the flow rate is reduced through the flow meter 76.

The flow rate controller 78 determines that a large amount of foreign matter is caught in the hot runner A1 connected to the discharge connector 73 having a reduced flow rate, and the flow rate of the remaining discharge connectors 73 except the discharge connector 73 having a reduced flow rate. By blocking the control valve 77, the flow rate of the washing liquid is concentrated to the discharge connector 73 having a reduced flow rate, so that foreign matters of the hot runner A1 connected to the discharge connector 73 are easily removed by the pressure of the washing liquid.

In addition, if the washing liquid flowing into the distributor 70 is abnormally increased, the pressure gauge (75a) detects this, the emergency control unit 75 stops the operation of the circulation pump 30, the first three-way valve 50 By selecting the bypass state, the pressure of the washing liquid flowing into the distributor 70 is lowered.

10: storage tank
20: second three-way valve
30: circulating pump
40: third three-way valve
50: first three-way valve
60: electromagnet filter
70: distributor

Claims (7)

An apparatus for washing the hot runner (A1) of the mold (A) by the washing liquid circulation method,
The washing liquid of the storage tank 10 is supplied to the distributor 70 by the circulation pump 30, and is distributed to the respective hot runners A1 formed in the mold A in the distributor 70, and each hot runner ( Synthetic resin carbide and foreign matter adhering to A1) are washed, the washing liquid washing the hot runner A1 is filtered by the electromagnet filter 60 and the micro filter 65, and the filtered washing liquid is returned to the storage tank 10. ,
The injection connector 72 connected to the distributor 70 is connected to the top of the hot runner A1, respectively, and the discharge connector 73 is connected to the bottom of each hot runner A1, respectively, and the rear end of the discharge connector 73 is connected. The flow rate control valve 77 and the flow meter 76 are arranged in the flow rate, flow rate information of the flow meter 76 is transmitted to the flow rate control unit 78, and the flow rate control unit 78 controls the flow rate that flows to each discharge connector 73. Hot runner washer, characterized in that the flow control unit 78 controls the opening and closing of each flow control valve (77).
The method of claim 1,
When the first three-way valve 50 is disposed between the circulation pump 30 and the distributor 70, and the first three-way valve 50 is selected as a bypass, the washing liquid discharged from the circulation pump 30 is bypassed. If the first three-way valve 50 is selected to be washed through the line (5), and the first three-way valve (50) is selected for washing, the cleaning liquid is washed through the dispenser 70 and then the electromagnet filter (60) Hot runner cleaner, characterized in that the supply.
delete delete delete An apparatus for washing the hot runner (A1) of the mold (A) by the washing liquid circulation method,
The washing liquid of the storage tank 10 is supplied to the distributor 70 by the circulation pump 30, and is distributed to the respective hot runners A1 formed in the mold A in the distributor 70, and each hot runner ( Synthetic resin carbide and foreign matter adhering to A1) is washed, the washing liquid washing the hot runner A1 is filtered by the electromagnet filter 60 and the micro filter 65, and the filtered washing liquid is returned to the storage tank 10. ,
The first three-way valve 50, the pressure gauge 75a, and the emergency control unit 75 are disposed between the circulation pump 30 and the distributor 70, so that the pressure of the washing liquid supplied to the hot runner A1 by the pressure gauge 75a. When the information is transmitted to the emergency control unit 75 and the pressure flowing to the hot runner A1 is equal to or greater than the threshold value, the emergency control unit 75 determines that it is abnormal, stops the operation of the circulation pump 30, and the first three-way valve. Hot runner washer, characterized in that 50 is selected as a bypass, so that washing liquid is blocked from being supplied to the dispenser. delete

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