KR101435623B1 - Shower apparatus for aqueous solution of parting agent - Google Patents

Abstract

An object of the present invention is to provide a mold release agent dispensing apparatus having a hood covering a spray nozzle so that a person making a casting material is not damaged by dust, high temperature, high pressure steam, or the like.
The present invention provides a release agent spraying apparatus comprising a spray nozzle for spraying a release agent onto a mold, a hood for spraying the spray nozzle and the mold, and an up-down apparatus for raising and lowering the hood and the spray nozzle.

Description

{SHOWER APPARATUS FOR AQUEOUS SOLUTION OF PARTING AGENT}

The present invention relates to a mold releasing agent coating apparatus for automatically applying a mold releasing agent to a mold to easily separate a casting from a mold.

A mold to be repeatedly used to cast the same casting is called a permanent mold, and a method of casting without using pressure by using a permanent mold is called a permanent casting. Permanent casting uses almost a mold, which is commonly referred to as die casting. The metal to be cast is mainly light alloy, and brass, bronze, zinc and cast iron are also used.

When casting using such a permanent mold, that is, a mold, the casting is rapidly cooled because the thermal conductivity is higher than that of a consumable mold made of sand or the like, which is advantageous in that the casting structure is fine.

At this time, in order to increase the lifetime of the mold, graphite is injected at each casting, or the mold is immersed in a water tank containing an aqueous solution of graphite, thereby improving the fire resistance of the mold. Graphite not only functions as a fire retardant, it also functions as a release agent, has heat shielding function, and controls cooling rate.

The mold release agent injection system which directly injects the release agent powder into the spray type can be applied when the metal to be casted is zinc or aluminum having a relatively low melting point. Since the melting point of the metal is high during casting using brass, the reaction between the release agent and the melt, Considering continuity of work and working environment, it was difficult to apply a release agent using such a spray device. Therefore, the temperature of the surface of the mold is so high that the release agent such as graphite does not become a shape on the surface of the mold (lydeen frost phenomenon) and the mold is immersed in a water tank storing dissolved water such as graphite, . That is, a method of dipping a mold in a cooling bath storing graphite-dissolved water to shape a mold release agent and cleaning the surface of the mold using a separate air brush has been used.

This method has a disadvantage in that it is dangerous to burn due to water vapor generated by immersing a relatively high-temperature mold in a water tank, that the entire mold is cooled not only on the surface of the mold, but also on the mold, .

An object of the present invention is to provide a release agent dissolving water dispensing apparatus having a hood covering a spray nozzle so that a person making a casting product is prevented from being damaged by dust, high temperature, high pressure steam, or the like.

The present invention provides a mold release agent coating apparatus comprising a spray nozzle for spraying a mold release agent onto a mold, a hood for spraying the spray nozzle and the mold, and a lifting apparatus for lifting and lowering the hood and the spray nozzle.

The present invention also provides a dissolving apparatus for dissolving a releasing agent, characterized by further comprising a mold driving unit to which a mold is detachably coupled.

According to another embodiment of the present invention, there is provided a mold release agent dispensing apparatus characterized in that the mold driving unit is movable in a direction approaching and away from the injection nozzle.

According to another embodiment of the present invention, there is provided a mold releasing agent coating apparatus characterized in that the mold driving section is capable of rotating the mold in a direction in which the height of a molten metal injection port is lowered.

According to another embodiment of the present invention, there is provided a dissolving apparatus for dissolving a releasing agent, further comprising a first exhaust duct installed at one side of the mold driving unit and sucking gas generated at the time of injecting molten metal.

According to another embodiment of the present invention, there is provided a release agent dissolving apparatus, further comprising a second exhaust duct coupled to one side of the hood.

According to another embodiment of the present invention, there is provided a dissolution apparatus for dissolving a releasing agent, which further comprises a tank connected to the spray nozzle for preparing and storing a dissolving agent for dissolving the dissolving agent.

According to another aspect of the present invention, there is provided a dissolving apparatus for dissolving a releasing agent, characterized in that the injection nozzle injects compressed air into a mold to remove foreign matters adhering to the mold.

According to another aspect of the present invention, there is provided a spray nozzle comprising: a first nozzle pipe through which a releasing agent dissolving water is introduced; a second nozzle pipe through which compressed air flows; and a second nozzle pipe communicating with the first nozzle pipe, And a second injection hole communicating with the second nozzle pipe and injecting the compressed air.

The mold release agent coating apparatus provided by the present invention can dissolve dissolved water, such as graphite, through a spray nozzle onto a mold to easily separate the cast from the mold.

Further, in the apparatus for dissolving dissolvable dissolution water provided by the present invention, when the dissolving agent dissolving water is injected through the injection nozzle into the mold, the hood can enclose the injection nozzle and the mold to prevent the dissolving agent from dissipating.

In addition, the present invention provides a mold releasing agent dispensing apparatus provided with an exhaust duct at one side of a mold driving unit to which a mold is coupled, so that the gas generated during the injection of the molten metal can be sucked and exhausted, And can be performed in a pleasant environment.

In addition, the mold releasing agent dispensing apparatus provided by the present invention can not only move the mold toward the release agent spray nozzle side, but also rotate the mold so as to facilitate injection of the molten metal, It can be made convenient.

Further, the present invention provides a dissolving agent dissolving apparatus for a releasing agent, which cleans the mold by using compressed air before application of the dissolving agent for dissolving the releasing agent, and the step of spraying the dissolving agent dissolving water is performed together to smoothly and smoothly carry out the entire working step .

FIG. 1 is a front view of a mold releasing device according to an embodiment of the present invention, FIG.
FIG. 2 is a left side view of a dispenser injection device according to an embodiment of the present invention,
FIG. 3 is a rear view of a releasing agent spraying apparatus according to an embodiment of the present invention, FIG.
FIG. 4 is a top view of the ejecting apparatus according to an embodiment of the present invention,
FIG. 5 is a view showing a nozzle pipe of a nozzle included in the ejecting agent spraying apparatus according to the first embodiment of the present invention,
6 and 7 are views showing an upper main body of a nozzle included in the ejecting agent spraying apparatus according to the first embodiment of the present invention,
8 is a view showing a lower main body of a nozzle included in the ejecting agent spraying apparatus according to the first embodiment of the present invention,
9 is a view showing a nozzle included in a releasing agent ejecting apparatus according to a second embodiment of the present invention,
10 and 11 are views showing an upper main body of a nozzle included in a releasing agent ejecting apparatus according to a second embodiment of the present invention,
12 and 13 are views showing a first lower main body of a nozzle included in the releasing agent ejecting apparatus according to the second embodiment of the present invention,
14 and 15 are views showing a second lower main body of a nozzle included in the releasing agent ejecting apparatus according to the second embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

1 is a front view of a blowing agent spraying apparatus according to an embodiment of the present invention. The mold release agent dispensing apparatus according to an embodiment of the present invention includes a spray nozzle 100 for spraying a mold release agent to a mold, a hood 200 for covering the mold and the injection nozzle 100 when the injection nozzle 100 injects the mold release agent, A lifting device 300 for lifting the injection nozzle 100 and the hood 200 up and down, a mold driving part 400 to which the mold is detachably coupled, a gas which may be generated when the mold release agent is injected or the molten metal is injected, The first exhaust duct 510 and the second exhaust duct 520 for sucking the first exhaust duct 510 and the second exhaust duct 520, respectively.

The injection nozzle 100 and the hood 200 descend to the position where the mold is located by the lifting / lowering device 300 and return to the original position. The release agent dispenser has a frame that forms the framework of the apparatus, which is an upper frame 10, a lower frame 20, and a rear frame 30. The raising and lowering device 300 is fixed to the upper frame 10 and the injection nozzle 100 and the hood 200 are installed up and down with respect to the upper frame 10 by the raising and lowering device 300 .

The mold driving part 400 includes a mold driving part frame 401, a first mold fixing part 402 fixed to the mold driving part frame 401, a second mold fixing part (not shown) movably provided with respect to the mold driving part frame 402 404 and a mold driving device 410. [ The mold drive unit 410 is fixedly mounted on the mold driving unit frame 401 and the mold driving unit 410 moves the second mold fixing unit 404 to the left and right. The first mold fixing portion 402 and the second mold fixing portion 404 are portions to which a mold to be injected with molten metal is fixed in order to make a casting. The mold has a portion fixed to the first mold fixing portion 402, And is fixed to the mold fixing portion 404. When the molten metal is injected, the second mold fixing part 404 moves to couple the two divided parts. When the casting is molded after the molten metal is injected, the second mold fixing part 404 is moved again, So that the casting can be taken out.

A mold moving device 420 for moving the mold driving part 400 to be described later is installed on the lower frame 20 and a mold rotating device 430 is installed on the mold moving device 420. When the molten metal is injected as described above, the mold moving device 420 moves the mold driving part 400 forward, and the mold framing device 410 moves the second mold fixing part 404 to the right, The mold fixed to the mold fixing portion 402 and the mold fixed to the second mold fixing portion 404 are coupled to each other. Then, the mold rotating device 430 rotates the mold driving part frame 401 to cause the mold to tilt, and then the molten metal is injected through the molten metal injection port of the mold.

FIG. 2 is a right side view of the ejecting apparatus injecting apparatus according to an embodiment of the present invention. The injection nozzle 100 and the hood 200 are lifted and lowered by the lifting apparatus 300. The lifting apparatus 300 is fixed to the upper frame 10. [ The injection nozzle 100 is lifted and lowered by the first lifting apparatus 310 and the hood 200 is lifted and lowered by the second lifting apparatus 320. As the lifting device 300, a hydraulic cylinder or a pneumatic cylinder which is generally used can be used. The first ascending / descending device 310 is installed on the upper frame 10, and the piston rod moves up and down on the upper portion of the upper frame 10. The end of the piston rod of the first ascending / descending device 310 and the upper end of the injection nozzle 100 are fixed so that the injection nozzle 100 also moves upward when the piston moves upward, The nozzle 100 also goes down. The second lifting device 320 is installed on the upper frame 10 and the piston rod of the second lifting device 320 moves up and down in the lower portion of the upper frame 10. The end of the piston rod of the second lifting device 320 is engaged with the upper surface of the hood 200. When the piston rod descends, the hood 200 also descends. When the piston rod rises, the hood 200 also rises .

Meanwhile, in order to collect and discharge the releasing agent dissolved water injected from the injection nozzle 100, the releasing agent dissolving water collecting part 700 and the valve 710 for discharging the collected dissolving agent dissolving water to the outside are supplied to the injection nozzle 100 and the hood 200). The releasing agent dissolved water collecting unit 700 and the valve 710 are fixed to the lower frame 20.

FIG. 3 is a rear view of a releasing agent ejecting apparatus according to an embodiment of the present invention, and FIG. 4 is a top view of a releasing agent ejecting apparatus according to an embodiment of the present invention. As described above, a mold moving device 420 for moving the mold driving part 400 (see FIG. 1) to be described later is installed on the lower frame 20, and on the mold moving device 420, (430). On the mold moving device 420, a pedestal 422 for installing the mold rotating device 430 is installed. The mold moving device 420 may be a pneumatic cylinder or a hydraulic cylinder which is generally used for linear motion. When the piston of the mold moving apparatus 420 moves forward and backward, not only the mold driving unit 400 but also the pedestal 422 fixed on the piston 422 and the mold rotating apparatus 430 installed on the pedestal 422 ) Are moved forward and backward together. The mold rotating device 430 uses the principle of a crank mechanism which is a general four-bar linkage device. The mold rotating device 430 includes a first rotating shaft 431 rotatably coupled to the pedestal 422 and a second rotating shaft 431 rotatably coupled to the mold driving part frame 401 at the other end, And a reciprocating device 432 installed on the pedestal 422 and connected to one end of the piston rod and the second rotary shaft 434. The second rotary shaft 434 is rotatably coupled to the second rotary shaft 434, When the piston of the reciprocating device 432 advances, the mold driving part 400 rotates counterclockwise as viewed from the rear and clockwise as viewed from the front. When the piston retreats, the mold driving part 400 rotates again, Direction. The second rotary shaft 434 may be fixed to the rear case 30 or the lower case 20 so as to fix and support the mold driving unit 400. At this time, A shaft which can be slid in a long length so as to maintain a state fixed to both the rear case 30 or the lower case 20 and the mold driving unit 400 during the backward movement, A cylinder device may be employed.

FIG. 5 is a view showing a nozzle pipe of an injection nozzle provided in a release agent injecting apparatus according to the first embodiment of the present invention, and FIGS. 6 and 7 are cross- FIG. 8 is a view showing a lower main body of an injection nozzle provided in a releasing agent spraying apparatus according to a second embodiment of the present invention. FIG. The injection nozzles shown in FIGS. 5 to 8 are provided in a release agent spraying apparatus according to an embodiment of the present invention shown in FIGS. 1 to 4. FIG.

The injection nozzle 100 included in the releasing agent spraying apparatus according to the first embodiment of the present invention comprises three parts: a nozzle pipe 110, an upper main body 120, and a lower main body 130. In the nozzle pipe 110, a hollow 112 is formed to introduce a release agent such as graphite-dissolved water. As described above, the upper end of the nozzle pipe 110 is connected to the upper end of the piston rod of the first ascending / descending device 310 of the ascending and descending device 300, and when the piston rod of the first ascending and descending device 310 advances And moves downward when it retreats. On the other hand, a flange portion is formed on a lower portion of the nozzle pipe 110, and a fastening hole 114 for fastening with the upper body 120 is formed on the flange portion. The upper portion of the hollow 112 is connected to a pipe capable of introducing a releasing agent such as graphite dissolving water or a releasing agent dissolving water and a pipe capable of introducing compressed air and further includes a dissolution water storage tank and a dissolution water producing apparatus can do.

The nozzle pipe 110 is coupled to the nozzle body. The nozzle body includes an upper body 120 and a lower body 130. The upper body 120 includes a communication hole 122 communicating with the hollow 112 of the nozzle pipe 110, a first fastening hole 124 for fastening the nozzle pipe 110, A blocking portion 127 protruding downward at a predetermined height on both sides of the storage space 126, a second fastening hole 127 for fastening the lower main body 130, 128). Both sides of the storage space 126 are partially covered with the covering portion 127, so that when the lower body 130 is fastened to the lower portion of the upper body 120, it functions as a spray hole. The lower main body 130 has a fastening hole 138 for fastening the upper main body 120 to the lower main body 130 and the upper surface of the lower main body 130 is a lower surface of the upper main body 120.

In the meantime, the dissolving-water jetting apparatus of the mold release agent dispenser may be configured such that the nozzle pipe 110 is connected to not only the dissolving water storage tank but also the compressed air storage tank and alternately connects the dissolving water storage tank and the compressed air storage tank to the nozzle pipe 110 And may further include a valve. As a result, the compressed air can be injected through the nozzle 100 into the mold as well as the mold 100. When the nozzle 100 and the hood 200 descend or rise, high-pressure compressed air is injected into the mold, It is possible to remove the residual zinc oxide and graphite dust on the mold surface. In addition, since the nozzle 100 injects compressed air in the hood 200 to clean the surface of the mold, it is possible to improve the internal environment of the factory.

FIG. 9 is a view showing an injection nozzle included in the releasing agent injecting apparatus according to the second embodiment of the present invention, and FIGS. 10 and 11 are views showing an upper part of the injection nozzle provided in the releasing agent injecting apparatus according to the second embodiment of the present invention FIGS. 12 and 13 are views showing a first lower main body of an injection nozzle provided in a releasing agent ejecting apparatus according to a second embodiment of the present invention, and FIGS. 14 and 15 are views showing the second 1 is a view showing a second lower main body of an injection nozzle provided in a releasing agent injecting apparatus according to an embodiment. The nozzles shown in FIGS. 9 to 15 may be provided in a release agent spraying apparatus according to an embodiment of the present invention shown in FIGS. 1 to 4. FIG.

The injection nozzle 100 'included in the releasing agent spraying apparatus according to the second embodiment of the present invention includes a first nozzle pipe 111' and a second nozzle pipe 112 ', first and second nozzle pipes 111' A first lower main body 130 'which is fastened to the lower portion of the upper main body 120' and has a first injection hole 139 'formed therein, a first lower main body 130' And a second lower body 140 'fastened to a lower portion of the first lower body 140' and having a second injection hole 149 '. The material injected through the first injection hole 139 'formed in the first lower main body 130' may be compressed air or dissolved in the releasing agent. The second injection hole 139 'formed in the second lower main body 140' The material sprayed through the nozzle 149 'may also be compressed air or may be a mold release agent. The material injected through the first injection hole 139 'and the second injection hole 149' is selected from the compressed air and the dissolving water of the releasing agent, and the substances injected through the injection holes 139 'and 149' different. The injection nozzle 100 'provided in the releasing agent spraying apparatus according to the second embodiment of the present invention ejects dissolved water of the releasing agent through the first spray hole 139' As shown in FIG.

Referring to FIGS. 10 and 11, the upper body 120 'includes a first communication hole 121' and a second nozzle pipe 112 'formed in the first nozzle pipe 111' And a second communication hole 122 '. The dissolving agent dissolving water flows in through the first nozzle pipe 111 ', and the compressed air flows in through the second nozzle pipe 112'. The second communication hole 122 'is formed in the first communication hole 122' so that a part of the second nozzle pipe 122 'can penetrate so that the second lower body 140' and the second nozzle pipe 112 ' (121 '). The upper body 120 'has a first fastening hole 124' for fastening the first nozzle pipe 111 'and the second nozzle pipe 112', and a second fastening hole 124 'for fastening the first lower body 130' And a second fastening hole 128 'for fastening the body 140' is formed.

Referring to FIGS. 12 and 13, the first lower body 130 'includes a storage space (not shown) for temporarily storing dissolved water of the release agent introduced through the first nozzle pipe 111' and the first communication hole 121 ' 136 '. A plurality of spray holes 139 'for spraying dissolved water temporarily stored in the storage space 136' are formed on the side surface. Also, a plurality of fastening holes 138 'for fastening the first lower body 130' to the upper body 120 'are also provided. Meanwhile, the second nozzle pipe 112 'includes a through hole 131' through which a part of the second nozzle pipe 112 'can pass. A part of the second nozzle pipe 112 'extends through the through hole 131' to the second lower body 140 'to be described later and communicates with the storage space 146'.

Referring to FIGS. 14 and 15, the second lower body 140 'includes a first lower body 130', except that the second nozzle pipe 112 'does not include a through hole 131' therethrough. And a similar configuration and function. The second nozzle pipe 112 'communicates with the storage space 146', compressed air is temporarily stored in the storage space 146 ', and is injected into the mold through a plurality of injection holes 149' do.

The operation of the release agent spraying apparatus is as follows. First, the hood 200 descends and then the compressed air is injected while the injection nozzles 100 and 100 'descend, or the injection nozzles 100 and 100' reciprocate through the descending and the rising, Clean. Next, the injection nozzles 100 and 100 'are lowered to spray the dissolving water of the releasing agent to apply the dissolving water of the releasing agent to the mold. The injection nozzles 100 and 100' are raised again and the compressed air is sprayed, Can be removed. After the cleaning of the mold and the application of the releasing agent dissolving water are completed, the hood 200 is raised. With this configuration, the steps of cleaning the mold and spraying the dissolving agent-releasing water are automatically performed in one apparatus, so that the entire working process can be smoothly and smoothly performed. Of course, in addition to the above-mentioned examples, the order of spraying the compressed air or the releasing agent dissolving water at the time of raising or lowering the injection nozzles 100, 100 'may be changed.

The scope of the present invention is not limited to the above-described embodiments, and a linear reciprocating device, a rotary device and the like can be replaced with generic components having the same function.

100, 100 ': injection nozzle
200: Hood
300: lifting device
400: mold driving part
410: first mold driving part moving device
510: First exhaust duct
520: Second exhaust duct

Claims (11)

An injection nozzle for injecting the releasing agent dissolved water into a mold;
A hood that surrounds the injection nozzle and the mold;
An up-down device for raising and lowering the injection nozzle and the hood; And
And a mold drive unit that is detachably coupled to the mold and rotates the mold in a direction in which the height of the injection port of the mold is lowered. delete The method according to claim 1,
Wherein the mold driving part is movable in a direction approaching and away from the injection nozzle. delete The method according to claim 1,
And a first exhaust duct installed at one side of the mold driving part and sucking gas generated at the time of injecting the molten metal. The method according to claim 1,
And a second exhaust duct coupled to one side of the hood. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
And a tank connected to the spray nozzle for preparing and storing a releasing agent dissolving water in which the releasing agent is dissolved. The method according to claim 1,
Wherein the injection nozzle comprises a nozzle body formed with a hollow for introducing the releasing agent dissolving water therein, a nozzle pipe connected to the lifting device, and a nozzle body coupled to the nozzle pipe and having a spray hole for spraying the dissolved water. Dissolving water application device. 9. The method of claim 8,
Wherein the nozzle body includes an upper body having a communication hole communicating with the hollow of the nozzle pipe and an injection hole connected to the communication hole, and a lower body coupled to a lower portion of the upper body. The method according to any one of claims 1, 3, and 5 to 9,
Wherein the injection nozzle injects compressed air into the mold to remove foreign matter adhering to the mold. The method according to any one of claims 1, 3, and 5 to 9,
The injection nozzle includes a first nozzle pipe through which the releasing agent dissolving water flows, and a second nozzle pipe through which compressed air flows,
A first injection hole communicating with the first nozzle pipe and injecting the dissolving agent releasing water; and a second injection hole communicating with the second nozzle pipe and injecting the compressed air.

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