KR101453299B1 - To injection mold cooling hole corrosive cleaning device - Google Patents

Abstract

The present invention relates to a device for cleaning rust existed in a coolant channel of an injection mold, and more specifically, to a device for cleaning a coolant channel of an injection mold, which not only expands the lifespan of the injection mold, but also improves efficiency of removing rust by expanding efficiency of removing scale or rust existed in the coolant channel of the injection mold, and uniformly coating a coating layer which prevents corrosion on the inner circumferential surface of the coolant channel after removing rust.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cleaning apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for removing rust existing in a cooling water passage of an injection mold, and more particularly, to a cleaning apparatus using an injection metal mold having an injection mold having improved rust removal efficiency.

Generally, the injection mold is provided with a cooling water path through which cooling water is circulated. As such, water is caught or rust is generated in the cooling water.

It is already known that when injection molding is performed without removing water or rust from the cooling water, the cooling efficiency of the injection mold is largely lowered so that good injection molding can not be performed.

Therefore, in the prior art, as disclosed in Korean Patent Laid-Open Publication No. 10-2013-0010369, an apparatus for removing scale of an injection mold has been disclosed. However, this has a very simple circulation structure, There is a problem that the rust is generated again because the water is inevitably present in the cooling water furnace.

In addition, since the filter unit for filtering the foreign substances is provided, not only the manufacturing cost is increased but also the operator can not smoothly perform the circulation operation in the case where the operator does not remove the foreign substances from the filter unit, have.

Also, as disclosed in Korean Patent No. 10-1027692, a technique of removing rust from cooling water and coating a rust preventive coating using ultrasound vibration has been disclosed. However, since an expensive ultrasonic device is provided, the manufacturing cost is increased, Since the coating layer is also a liquid, the coating layer is not formed uniformly throughout the inner circumferential surface of the cooling water as the coating liquid flows downwardly and downwardly with the cooling water immediately after the rust-preventive work, resulting in partial corrosion.

KR 10-1027692 B1 2011.04.12 KR 10-2013-0010369 A 2013.01.28

The present invention can significantly increase the water and rust removal efficiency of the cooling water of the injection mold, and after the rust removal, the coating layer for preventing corrosion can be uniformly coated on the inner circumferential surface of the cooling water, thereby increasing the life of the injection mold I want to be able to do that.

Another object of the present invention is to make it possible to clean a cooling water passage of an injection mold well without a filter for removing foreign materials.

A pretreatment washing water tank and a post-treatment washing water tank each containing a treating solution such as washing water, and a neutralizing anticorrosive solution containing a treating solution such as a neutralizing rust preventing solution And a distributing and merging section having a transfer water distributing chamber and a recirculating water merging chamber provided respectively in front of the treatment liquid applicator, wherein each of the treatment liquid in each of the tanks is sucked, A forced sending and receiving means for forcibly transferring the processing liquid in the respective tanks to the transfer pipe and sending the processed liquid to the transfer water distribution chamber by operating the circulation pump connected to the transfer pipe and the transfer pipe; The treatment liquid of the water supply and distribution chamber is discharged and the water pipes which are opened and closed by the respective opening and closing valves are provided in at least two or more even states And a water inlet hose connected to the water outlet pipe and each having a screwing nozzle at an end thereof, and a water inlet hose having at least two water inlet and outlet pipes opened and closed by an open / close valve A return passage provided in an even state and each having a return hose connected to the inlet pipe and having a screw fastening nozzle at an end thereof, and a single return connection pipe communicating with the return pipe, And a drain portion connected to the drain pipe and drained to the respective tanks through respective drain pipes opened and closed by the respective opening and closing valves.

The treatment liquid contained in any one of the plurality of tanks is selectively forcibly transferred to the transfer water distributing chamber and the treatment liquid returned to the return water merging chamber is supplied to the tank containing the treatment liquid to be transferred to the transfer water distributing chamber So as to be drained.

The air conditioner according to any one of claims 1 to 3, wherein the air conditioner further includes an air chamber at one side of the return and mixing chamber, and the compressed air generated by the compressor is supplied to the air chamber, And is blown by the hose to the return water joining chamber.

And an electric heater having a heating line for heating the compressed air in either the middle of the air hose or the inside of the air chamber connecting the compressor and the air chamber.

The open / close valve and the air transfer hose provided on the air chamber side can be separated and coupled by air coupling, so that any one of the air conveyance having the air coupling or the air gun having another air coupling is selectively connected to the opening / closing valve And the like.

The air coupling is characterized in that the ball receiving the spring elastic force is inserted and coupled to the groove portion in the opening / closing valve.

And the suction pipe piped into each of the tanks is submerged up to the middle portion of the treatment liquid which does not have a suction force to the sludge settled in the lower portion of the tank, so that the suction pipe is sucked upward.

And a spiral protrusion for generating a vortex is further provided on the inner circumferential surface of the screw coupling nozzle of the water supply hose.

The present invention is very simple in that each processing liquid is sequentially supplied to the cooling water passage of the injection mold so that the processing liquid is sent to the cooling water of the injection mold so as to be more than twice the pumping pressure of the circulation pump, The efficiency of removal of foreign matter and rust from the cooling water is greatly improved and rapid cleaning operation is achieved.

Further, the present invention can circulate the relatively clean process liquid to the cooling water of the injection mold without using a filter device for filtering the sludge as in the past, so that the manufacturing cost can be reduced and the maintenance can be simplified .

Particularly, the present invention allows the water and moisture components remaining in the cooling water to be rapidly evaporated so that only the rust-preventive liquid component remains almost uniformly on the inner circumferential surface, so that the cooling water furnace can be well rustproofed However, even if the injection mold is stored for a long period of time, the cooling water can be prevented from being corroded again as much as possible, and the life of the injection mold can be increased.

1 is an overall perspective view of a cleaning apparatus according to the present invention,
2 is a plan sectional view of the cleaning apparatus according to the present invention,
3 is a sectional view taken along the line X-X 'in Fig. 3 showing the forced water sending and receiving means and the water supply and distribution chamber of the present invention,
4 is a cross-sectional view taken along the line Y-Y 'in Fig. 3 for explaining the water returning portion and the drainage portion of the present invention,
5 is a sectional view taken along the line Z-Z 'in FIG. 3 for explaining the compressed air blowing structure of the present invention,
6 is a sectional sectional view showing an air coupling structure according to the present invention.
7 (a) and 7 (b) are a partial cross-sectional perspective view and a fastening configuration diagram showing the internal structure of the screw fastening nozzle according to the present invention,
8 is a cross-sectional view of an electric heater according to the present invention,
9 is a schematic structural view showing the entire cleaning apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the accompanying drawings.

1 to 4, the present invention relates to a pretreatment washing water treatment apparatus including a deicing solution tank 11 containing a deicing solution W1 such as a deodorizing solution, (10) having a tank (12), a post-treatment wash water tank (13), and a neutralizing rust preventive liquid tank (14) containing a neutralizing rust preventive treatment liquid (W4) such as a neutralizing rust preventive liquid. .

The dewatering tank 11, the pretreatment wash water tank 12, the post-treatment wash water tank 13 and the neutralizing rust preventive liquid tank 14 are provided in respective tanks 11, 12, 13, 14 ).

Therefore, the present invention is configured to have the distributing and merging section 20 having the water supply and distribution chamber 21 and the water return merging chamber 22 in a row in front of the treatment liquid supply section 10.

Further, the present invention includes forcible transfer means (30) for sucking the processing liquid contained in each of the tanks (11, 12, 13, 14) and transferring the processing liquid to the transfer water distribution chamber (21).

The forced transfer means 30 has suction pipes 31, 32, 33, and 34 for sucking the processing solutions W1 to W4 housed in the respective tanks 11, 12, 13 and 14, 32, 33, and 34 are opened and closed by respective on / off valves 31a, 32b, 33c, and 34d, and the respective suction pipes 31, 32, 33, and 34 are connected to a single feed / .

The circulation pump 36 connected to the feed and discharge pipe 35 operates to forcibly feed the processing liquid in the respective tanks 11, 12, 13, and 14 to the transfer tube 37, To be transmitted and received.

The present invention further includes a water outlet (40) for allowing the processing liquid transferred to the water supply and distribution chamber (21) to be transferred to the injection mold (G).

The water outlet portion 40 is provided with respective water outlet pipes 41, 42, 43, and 44 fixed to the front of the water supply and distribution chamber 21 so that the processing solution in the water supply and distribution chamber 21 can be taken out, The respective water pipes 41, 42, 43, and 44 are openable and closable by the open / close valves 41a, 42b, 43c, and 44d. It is preferable that the water pipes 41, 42, 43, and 44 are provided in at least two even-numbered states.

The open / close valves 41a, 42b, 43c, and 44d of the water pipes 41, 42, 43, and 44 are configured such that the water supply hoses 46 having the respective screw tightening nozzles 45 are connected to the end portions thereof .

The screw fastening nozzle 45 is fastened to the cooling water Ga of the injection mold G and connected thereto.

In the meantime, in order to allow the treatment liquid to be returned to the return water confluence chamber 22, the present invention is characterized in that the water supply pipes 51 and 52 opened and closed by the open / close valves 51a, 52b, 53c and 54d are provided in front of the return water confluence chamber 22, , 53, 54) are provided in at least two even-numbered states.

Each of the opening and closing valves 51a, 52b, 53c and 54d of the water inlet pipes 51, 52, 53 and 54 is provided with a connecting hose 56 having a screwing nozzle 55 at its end, do.

When the water supply hose 46 is connected to the inlet of the cooling water path Ga, the water return hose 56 is connected to the cooling water path Ga of the injection mold G, And is connected to the outlet of the cooling water path (Ga). Since the screw fastening nozzles 45 and 55 are already known components, detailed drawings and explanations thereof will be omitted.

Meanwhile, a drainage unit 60 is provided to allow the treatment liquid, which is returned to the return water confluence chamber 22, to be transferred to the respective tanks 11, 12, 13, and 14.

The drainage section 60 is connected to one drainage connection pipe 66 communicating with the drainage pipe 65 through respective drain pipes 61, 62, and 63, which are opened and closed by respective open / close valves 61a, 62b, 63c, 63, 64 are connected to the respective tanks 11, 12, 13, 14, and the water pipes 61, 62, 63, 64 are connected to the respective tanks 11, 12, 13,

In the present invention, as shown in Fig. 2, the distributing and merging section 20 is further provided with an air chamber 23 at one side of the water return merging chamber 22.

5, compressed air generated by the compressor 24 is supplied to the air chamber 23, and the compressed air supplied to the air chamber 23 is supplied to both ends of the air chamber 23 And is blown to the return-flow merging chamber 22 by the air transfer hose 25 having the on-off valves 25a and 25b.

5, the air transfer hose 25 and the air hose 26 connected to the compressor 24 are directly connected to each other so that the compressed air generated in the compressor 24 flows into the circulation / (Not shown).

6, the opening / closing valve 25a and the air transfer hose 25 provided on the side of the air chamber 23 can be separated and coupled by the air coupling 28 so that the air coupling 28 Is selectively connected to the opening / closing valve 25a. The opening / closing valve 25a can be selectively connected to either the air transfer hose 25 having the air coupling 28 'or the air gun 29 having the air coupling 28'.

The air couplings 28 and 28 'can be inserted into the groove 25c of the opening and closing valve 25a by inserting a ball 282 which receives a resilient force of the spring 281. The air couplings 28 and 28' 28 'are forcibly pushed into the opening / closing valve 25a, when the ball 282 moves outwardly and reaches the groove 25c, the spring 281 moves inward again by the elastic force of the spring 281 and the groove 25c When the air couplings 28 and 28 'are removed, the ball 282 is moved to the upper side by the force to move the air couplings 28 and 28' in the longitudinal direction So that it can be separated.

However, since the air couplings 28 and 28 are only attached to and detached from the opening / closing valve 25a, they are not necessarily constructed as described above, and other structures may be employed in some cases.

Therefore, when cleaning the cooling water Ga of the injection mold G, it is preferable that the water supply and distribution chamber 21 is provided with a treatment liquid accommodated in one of the plurality of tanks 11, 12, 13, And the treatment liquid to be returned to the return water confluence chamber 22 is discharged to the tank containing the treatment liquid conveyed to the water supply and distribution chamber 21 in the plurality of tanks 11, 12, 13, And will be described in more detail as follows.

Hereinafter, in order to facilitate understanding of the present invention, the following description will be made on the assumption that the de-caking solution tank 11 contains the de-caking solution W1 such as the de-rasing solution. Therefore, the pretreatment washing water tank 12, Since the tank 13 is filled with the cleaning liquids W2 and W3 such as washing water and is called the washing water and the neutralizing rust preventive liquid tank 14 contains the neutralizing rust preventive liquid W4 such as the neutralizing rust preventing liquid, It is also described as "sum".

2 and 9, the present invention firstly connects the water supply hose 46 of the water outlet 40 to the inlet of the cooling water path Ga of the injection mold G, The return hose 56 of the water return unit 50 is connected.

9, one of the pair of the water supply hose 46 and the water return hose 56 is connected to the female mold, and the other is connected to the male mold, So that one injection mold G can be cleaned at one time.

Accordingly, in the first process of the present invention, the cooling water Ga of the injection mold G is cleaned by the demining solution contained in the demining solution tank 11 by the first process.

At this time, the opening / closing valve 31a of the suction pipe 31 connected to the dewatering tank 11 is opened, and at the same time, a pair of the water supply hoses 21, Only the opening and closing valves 41a, 42b, 51a and 52b of the drain hose 46 and the drain hose 56 and the opening and closing valve 62a of the drain pipe 61 leading to the dewatering tank 11 are opened, Closing valves 32b, 33c, 34d, 43c, 44d, 53c, 54d, 62b, 63c, 64d, 25a, 25b are all closed.

Then, when the circulation pump 36 is operated, the demining solution of the demining solution tank 11 is transferred to the water supply and distribution chamber 21 and passed through the cooling water passage Ga of the injection mold G through the water supply hose 46 The dewatered liquid obtained in the water returning confluence chamber 22 is returned to the return water joining chamber 22 via the water return hose 58 and the dewatering liquid is returned again through the water return connection pipe 66 and the water drain pipe 61, And is circulated in a state of being returned to the tank 11.

At this time, the operation time of the circulation pump 36 is adjusted by a timer (not shown) provided in the control unit 70 so that the operation is performed for a predetermined time (about 10-20 minutes) and is then stopped.

When the first process is completed, the first process is completed by the alarm light 80 and the alarm sound. Since the technique for making the alarm sound with the control unit 70 and the beacon light 80 is already known, detailed drawings and description will be omitted.

Accordingly, in the present invention, when the first process is completed, foreign matter or rust in the cooling water Ga of the injection mold G is removed by the cleaning solution.

Next, the second process of the present invention is a process of circulating the washing water in the pretreatment washing water tank 12 to be supplied to the cooling water Ga of the injection mold G and then being recycled.

In this process, the opening / closing valve 31a of the suction pipe 31 connected to the dewatering tank 11 is closed, and then the opening / closing valve 32b of the suction pipe 32 connected to the pretreatment flushing water tank 12 is opened.

Closing valves 41a, 42b, 51a, and 52b of the water supply hose 46 and the water return hose 56 that connect the water supply and distribution chamber 21 and the water return joining chamber 22 to the injection mold G are opened And keep the state as it is.

The opening and closing valve 61a of the drain pipe 61 leading to the deaerating tank 11 is closed and the opening and closing valve 62b of the drain pipe 62 connected to the pretreatment washing water tank 12 is opened, The shutoff valves 33c, 34d, 43c, 44d, 53c, 54d, 63c, 64d, 25a, and 25b are kept closed as in the first process.

That is, when the first process state is to be set to the second process state, only the suction pipe 31 connected to the dewatering tank 11 and the opening and closing valves 31a and 61a of the drain pipe 61 are closed and the pre- 32b of the suction pipe 32 and the discharge pipe 62 of the discharge pipe 62 are opened while the other open / close valves 33c, 34d, 43c, 44d, 53c, 54d, 63c, 64d, 25a, Closing valves can be automatically opened and closed under the control of the control unit 70 by adopting the electromagnetic opening / closing valves, and when the valves are to be operated by hand operation, it is very easy to operate It will be done.

Therefore, when the circulation pump 36 is operated, the washing water in the pretreatment washing water tank 12 is transferred to the water supply and distribution chamber 21, passes through the cooling water Ga in the injection mold G through the water supply hose 46, The washing water obtained in the return water joining chamber 22 is returned to the return water joining chamber 22 through the hose 58 and the washing water is returned to the pretreatment washing water tank 12 through the return water connection pipe 66 and the drain pipe 62 The cooling water Ga in the injection mold G is firstly washed by the washing water. After the circulation pump 36 is operated for a predetermined time, 70, the second process is completed.

The reason why the cooling water Ga of the injection mold G is firstly washed by the washing water is to remove the rust components of the cooling water Ga which have been desorbed by the cleaning solution, I want to.

Next, in the third process, the washing water in the post-treatment wash water tank 13 is supplied to the cooling water Ga of the injection mold G and circulated so as to be recycled.

In this process, the opening / closing valve 32b of the suction pipe 32 connected to the pretreatment tank 12 is closed, and then the opening / closing valve 33c of the suction pipe 33 connected to the post-treatment washing water tank 13 is opened.

Closing valves 41a, 42b, 51a, and 52b of the water supply hose 46 and the water return hose 56 that connect the water supply and distribution chamber 21 and the water return joining chamber 22 to the injection mold G are opened And keep the state as it is.

The opening and closing valve 62b of the water discharge pipe 62 connected to the pretreatment water tank 12 is closed and the opening and closing valve 63c of the water discharge pipe 63 connected to the post treatment water tank 13 is opened, The opening / closing valves 31a, 34d, 43c, 44d, 53c, 54d, 61a, 64d, 25a, and 25b of the remainder of the opening /

That is, in the same manner as the above-described operating method, only the suction pipe 32 connected to the pretreatment flush water tank 12 and the opening / closing valves 32b and 62b of the drain pipe 62 are closed, Only the opening and closing valves 33c and 63c of the connected suction pipe 33 and the drain pipe 63 can be opened so that the third process can be performed by a very simple operation.

Therefore, when the circulation pump 36 is operated, the washing water in the post-treatment washing water tank 13 is transferred to the water supply and distribution chamber 21 and passes through the cooling water Ga in the injection mold G through the water supply hose 46 The washing water obtained in the return water joining chamber 22 is returned to the return water joining chamber 22 through the water return hose 58 and the washing water received in the return water joining chamber 22 passes through the water return connection pipe 66 and the water drain pipe 63, The cooling water Ga in the injection mold G is secondly cleaned by the washing water.

After the circulation pump 36 is operated for a predetermined time, the controller 70 automatically stops the circulation pump 36, thereby completing the third process.

Therefore, as the cooling water Ga of the injection mold G is secondarily cleaned by the washing water, the detergent solution component, the foreign matter and the rust component which have not been removed in the first washing are completely removed.

Next, the fourth process of the present invention is carried out.

This process also causes only the suction pipe 33 connected to the post-treatment wash water tank 13 and the opening and closing valves 33c and 63c of the drain pipe 63 to be closed and the neutralized rust preventive liquid tank 14 to be closed in the same manner as the above- Only the opening and closing valves 34d and 64d of the suction pipe 34 connected to the drain pipe 64 and the drain pipe 64 are opened so that the fourth process can be performed by a very simple operation.

The other remaining on-off valves 31a, 32b, 43c, 44d, 53c, 54d, 61a, 62b, 25a and 25b are kept closed as in the third process.

Therefore, when the circulating pump 36 is operated, the neutralizing rust preventive liquid of the neutralizing rust preventive liquid tank 14 is transferred to the water supply and distribution chamber 21, and the cooling water Ga of the injection mold G is supplied through the water supply hose 46 And the neutralized rust preventive liquid obtained in the return water confluence chamber 22 is returned to the return water confluence chamber 22 through the return water pipe 58 and the water discharge pipe 64 The cooling water Ga in the injection mold G is coated by the neutralizing rust preventive liquid and the circulating pump 36 is kept in the state of being circulated in the neutralizing rust preventive liquid tank 14 The control unit 70 is automatically stopped and the fourth process is completed.

Accordingly, when the present invention is carried out from the first process to the fourth process, the foreign substances and the rust components of the cooling water Ga in the injection mold G are completely removed and the neutralized rust preventive solution is coated.

The present invention is characterized in that the suction pipes 31 to 34 connected to the respective tanks 11 to 14 provided in the process accommodating portion 10 and the opening and closing valves 31a to 34d , 61a to 64d are sequentially operated, so that the present invention can be automatically operated, and even if manually operated, the operation can be performed very easily, thereby improving the working efficiency.

The present invention also includes a water supply and distribution chamber 21 and a water return confluence chamber 22 so that the process liquid of the water supply and distribution chamber 21 is discharged and opened and closed by the respective open / close valves 41a, 42b, 43c and 44d Closing valves 51a, 52b, 53c, 54d (not shown) are provided in order to allow the process liquid to be returned to the return water confluence chamber 22 as well as the water pipes 41, 42, 43, The water supply pipes 51, 52, 53, and 54, which are opened and closed by the open / close valves 51, 52, 53 and 54, can be provided in at least two even states.

Therefore, as shown by a solid line in FIG. 9, by connecting a pair of injection molds G, which are made of female and male molds, through the two water pipes 41 and 42 and the water pipes 51 and 52, 9, another set of injection molds G ', G' and G ', which are made of female and male molds, are connected through two other water pipes 43 and 44 and the water pipes 53 and 54, ) Can be connected to perform the cleaning process of the present invention at the same time, it is possible to greatly improve the cleaning ability of the injection molds (G, G ') by the cooling water (Ga).

Particularly, the present invention has the water supply and distribution chamber 21 so that the volume of the water supply and distribution chamber 21 in the process of sending and receiving the respective processing solutions W1 to W4 to the water supply and distribution chamber 21 through the circulation pump 36 The amount of the processing liquid that is received by the circulation pump 36 can be increased.

Accordingly, as the amount of the processing solution received by the circulation pump 36 is larger than the volume of the water supply and distribution chamber 21, a larger pressure is generated in the water supply and distribution chamber 21 The processing liquid in the water distribution chamber 21 is forced to escape to the respective open water pipes 41 to 44 which become the outlet at a high speed, And is ejected to the cooling water furnace Ga of the mold G. [

In order to facilitate the understanding of the present invention, in the past, the cooling water Ga of the injection mold G was cleaned only by the pumping pressure of the circulation pump, The treatment liquids W1 to W4 are jetted at a high pressure and at a high speed to be cleaned, thereby further shortening the cleaning time and improving the cleaning ability.

7, if the spiral protrusion 45a for generating a vortex is provided on the inner circumferential surface of the screw fastening nozzle 45 in the water supply hose 46, the cooling water Ga in the injection mold G So that foreign matter and rust can be removed more easily and can be efficiently removed.

The present invention is characterized in that the volume of the return merging chamber (22) is made larger than the volume of the treatment liquid that is returned through the return hose (58) by providing the return merging chamber (22) The amount of the processing liquid drained to the drain pipes 61 to 64 can be more drained.

Therefore, since the volume of the return / reflux chamber 22 is larger than the amount of the liquid recovered through the return hose 58, the processing solution that is returned through the return hose 58 is returned to the return / The amount of the processing liquid drained to the drain pipes 61 to 64 can be drained more than the volume of the return water joining chamber 22, So that it can be satisfactorily recycled.

The present invention is characterized in that the suction pipes 31, 32, 33 and 34, which are respectively piped into the respective tanks 11, 12, 13 and 14, are connected to the treatment liquids W1, W2, W3 and W4, So as to be sucked up to the middle portion.

At this time, the suction force sucked by the suction pipes (31, 32, 33, 34) is regulated to be sucked so that only the suction force which can not suck the sludge (S)

Therefore, the sludge S introduced as the treatment liquids W1, W2, W3 and W4 which are returned to the respective tanks 11 to 14 is settled to the bottom of the tanks 11 to 14 by its own weight, Only treatment liquids W1, W2, W3 and W4, which are not substantially mixed with the sludge S, are accommodated at a height equal to or higher than the middle height of the suction pipes 31, 32, 33 And 34 are sucked into the middle of the processing liquid W1, W2, W3 and W4 as shown in FIG. 3, the cooling liquid Ga in the injection mold G is relatively clean (W1, W2, W3, W4) are circulated.

Accordingly, the present invention can circulate the processing liquids W1, W2, W3 and W4 in a relatively clean state to the cooling water Ga of the injection mold G without using a filter device for filtering the sludge S, It is possible not only to reduce the manufacturing cost, but also to make maintenance easier.

The sludge S settled in the lower part of each of the tanks 11, 12, 13 and 14 is discharged through the drain valve 16 to be discarded and the processing solutions W1, W2, W3 and W4, The lid 15 is opened and replenished to the respective tanks 11, 12, 13, and 14.

Meanwhile, in the present invention, after the first process to the fourth process are performed by the respective processing solutions W1, W2, W3 and W4, the cooling water Ga of the injection mold G is compressed A fifth treatment process is performed.

The fifth process of the present invention closes all the opening and closing valves 31a to 34d and 61a to 64d of the suction pipes 31 to 34 and the drain pipes 61 to 64 in the respective tanks 11 to 14. [

In addition, the screw coupling nozzle 45 connected to the inlet of the cooling water Ga of the injection molds G and G 'is loosened so that the water supply hoses 46 are released so that the inlet of the cooling water path Ga is opened .

At this time, the return hose 58 connected to the outlet of the cooling water Ga of the injection molds G and G 'is maintained in the connected state, and the opening / closing valves 51a to 51d connected to the respective return hoses 58, To be in an open state.

Then, both of the open / close valves 25a and 25b of the air transfer hose 25 connected to the front side of the air chamber 23 which is kept closed from the first process to the fourth process are opened.

Then, after the compressor 24 is operated for a predetermined time, it is stopped by an instruction from the control unit 70. [

5, the compressed air generated by the operation of the compressor 24 passes through the air hose 26 and the air chamber 23 and flows through the air transfer hose 25 as shown in FIG. And is transferred to the confluence chamber 22.

And is blown to the cooling water Ga of the injection molds G and G 'through the water return lake 58 connected to the water return merging chamber 22 to be blown and thereby the injection molds G and G ', The water and water remaining in the cooling water Ga are evaporated and removed by the compressed air blown by the cooling water Ga.

5 and 8, an electric heater 27 having a heating line 27a for heating compressed air is connected to the air hose 26 for connecting the compressor 24 and the air chamber 23 .

However, in the present invention, the electric heater 27 may be provided inside the air chamber 23 as occasion demands. Reference numeral 27b denotes an electric wire.

Accordingly, since the compressed air generated in the compressor 24 is heated and supplied to the electric heater 27, hot compressed air is blown into the cooling water Ga of the injection molds G and G ' So that water and moisture remaining in the cooling water Ga are evaporated and removed.

At this time, the moisture and moisture remaining in the cooling water Ga are rapidly evaporated, so that the rust-preventive liquid component remains almost uniformly on the inner circumferential surface, and the rust-preventive treatment is satisfactorily attained.

In order to facilitate the understanding of the present invention, in order to prevent dust and foreign substances from penetrating into the cooling water furnace Ga during storage after rust-proofing the cooling water furnace Ga, the inlet and the outlet of the cooling water furnace Ga are plugged Respectively.

Therefore, the water remaining in the cooling water path Ga flows down along the inner circumferential surface. Also, since the inlet and the outlet of the cooling water path Ga are blocked by the plug, The rust-preventive treatment was not performed uniformly on both sides and the upper part of the rust-preventive treatment, and the rust-inhibiting component contained water components, which caused corrosion again during storage.

However, according to the present invention, the water and moisture components remaining in the cooling water Ga are rapidly evaporated, so that only the rust-preventive liquid component remains almost uniformly on the inner circumferential surface, G ') is stored for a long time, corrosion of the cooling water (Ga) can be prevented as much as possible.

6, the opening / closing valve 25a provided on the side of the air chamber 23 and the air transfer hose 25 can be separated and coupled by the air coupling 28. Therefore, The air transfer hose 25 having the valve 28 is separated from the on-off valve 25a and then the on-off valve 25a is connected to the air gun 29 having the air coupling 28 '.

In this case, if the injection molds G and G 'are purged by compressed air using the air gun 29, it is possible to easily clean not only the cooling water Ga but also the outside of the injection molds G and G' So that it can be stored in a better state. In some cases, the air gun 29 may blow the compressed air to the cooling water Ga so as to be dried.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be < RTI ID = 0.0 > appreciated that the same is by way of illustration and example only and is not to be taken by way of limitation, It is self-evident that they should be protected as widely as possible.

10: Treatment liquid water Requirement 11: Dewatering tank
12: pretreatment wash water tank 13: post-treatment wash water tank
14: Neutralizing rustproofing liquid tank 15: Cover
16: drain valve 20: distribution and merging section
21: Transmission / distribution room 22:
23: Air chamber 24: Compressor
25: air transfer hose 25a, 25b: opening / closing valve
25c: groove portion 26: air hose
27: electric heater 28, 28 ': air coupling
29: Air gun 30: Forced water sending means
31, 32, 33, 34: suction pipes 31a, 32b, 33c, 34d:
35: Transmission pipe 36: Circulation pump
37: Feed pipe 40:
41, 42, 43, 44: water outlet pipes 41a, 42b, 43c, 44d:
45: Screw fastening nozzle 45a: Spiral projection
50: Water return section 51, 52, 53, 54:
51a, 52b, 53c, 54d: opening / closing valve 55: screw tightening nozzle
58: Water return hose 60: Drain
61, 52, 63, 64: drain pipes 61a, 62b, 63c, 64d:
65: water pipe 66: water connection pipe
70: control unit 80: warning lamp
G, G ': Injection mold Ga: With cooling water
S: Sludge

Claims (8)

A pretreatment washing water tank 12 and a post-treatment washing water tank 13 in which the cleaning liquids W2 and W3 are respectively accommodated and a neutralizing rust preventive treatment liquid And a neutralizing rust preventive liquid tank (14) in which the neutralizing rust preventive liquid tank (14) is accommodated;
And a distributing and merging section (20) having a water distributing chamber (21) and a water return merging chamber (22) provided in front of the treatment liquid supply section (10), respectively;
The suction pipes 31, 32, 33, and 34, which are respectively opened and closed by the respective on-off valves 31a, 32b, 33c, and 34d, suck the process liquid of the respective tanks 11, 12, 13, The processing liquid in each of the tanks 11, 12, 13, and 14 is transferred to the transfer pipe 37 by the operation of the circulation pump 36 connected to the single transfer pipe 35, (30) for forcibly transferring the water to the water distribution room (21) and for sending the water to the water distribution room (21);
And the water pipes 41, 42, 43, and 44 that are opened and closed by the respective on-off valves 41a, 42b, 43c, and 44d are provided in at least two or more even states A water outlet (40) having a water supply hose (46) connected to the water pipes (41, 42, 43, 44) and having screw fixing nozzles (45) at the ends thereof;
The inlet pipes 51, 52, 53, and 54, which are opened and closed by the opening / closing valves 51a, 52b, 53c, and 54d, are provided in at least two or more even states (50) having a return hose (56) connected to the inlet pipes (51, 52, 53, 54) and each having a screw fastening nozzle (55) at an end thereof;
The treatment liquid returned to the return water confluence chamber 22 is connected to one return water connection pipe 66 communicating with the water return pipe 65 and is opened and closed by the respective on-off valves 61a, 62b, 63c and 64d And a drainage part (60) for allowing the water to be drained to the respective tanks (11, 12, 13, 14) through the respective drainage pipes (61, 62, 63, 64) .
2. The water treatment system according to claim 1, wherein in the water supply and distribution chamber (21), only the treatment liquid accommodated in one of the plurality of tanks (11, 12, 13, 14) Wherein the treatment liquid that is returned to the water supply and distribution chamber (21) is discharged to the tank containing the treatment liquid transferred to the water supply and distribution chamber (21) in the plurality of tanks (11, 12, 13, 14) .
The air conditioner according to claim 1, wherein the distributing and merging section (20) further comprises an air chamber (23) at one side of the return water merging chamber (22) And the compressed air in the air chamber 23 is blown to the water return merging chamber 22 by air transfer hoses 25 having open / close valves 25a and 25b at both ends thereof, respectively. Cleaning device with cooling water of mold.
The electric heater according to claim 3, further comprising an electric heater (27a) having a heating wire (27a) for heating the compressed air in either the middle of the air hose (26) connecting the compressor (24) (27) is additionally provided on the outer circumferential surface of the injection mold.
The air conditioner according to claim 3, wherein the opening / closing valve (25a) provided to the air chamber (23) and the air transfer hose (25) Wherein one of the air transfer hose (25) and the air gun (29) having another air coupling (28 ') is selectively connected to the opening / closing valve (25a).
The air coupling according to claim 5, characterized in that the air coupling (28, 28 ') is inserted into a groove (25c) of the opening / closing valve (25a) by inserting a ball (282) Cleaning device with cooling water of injection mold.
2. The apparatus according to claim 1, wherein the suction pipes (31, 32, 33, 34) respectively piped into the respective tanks (11, 12, 13, 14) So as to be sucked up to an intermediate portion of the processing liquid which does not have a suction force up to the suction port.
The apparatus according to claim 1, further comprising a spiral protrusion (45a) for generating a vortex on an inner circumferential surface of the screw coupling nozzle (45) of the water supply hose (46).

Images