KR101043918B1 - Impregnation system - Google Patents

Abstract

PURPOSE: An impregnation system is provided to separate and collect impregnation liquid, washing water, and curing liquid from a metal material without a rinsing process by employing a drier having dehydrating and drying functions. CONSTITUTION: An impregnation system includes a drier(600). The drier comprises a frame, a separating bath which is installed on the frame, an opening and closing unit which opens or closes the internal space of the separating bath, a drum which comprises a rotary shaft in order to rotate inside the separating bath, a collecting basket which is detachably installed in the drum, a driving unit which comprises a motor and a reducer and transmits the torque of the motor to the rotary shaft of the drum, a control unit which controls the rotation speed and direction of the drum, a heater unit which provides hot air to the inside of the separating bath, and a storage tank which is connected to the separating bath through a collecting pipe.

Description

Impregnation System {IMPREGNATION SYSTEM}

The present invention relates to an impregnation system, and more particularly, an impregnation system further comprising a drying device for dewatering and drying during an impregnation process for a metal material (automobile parts, castings, or sintered bodies) that need to prevent airtightness or leakage. It is about.

In general, parts such as transmission cases, engine blocks, cylinder heads, and manifolds of automobiles are molded by aluminum die-casting, and are processed once more to maintain the airtightness of the cast metal itself. .

Impregnation is widely known as a method of maintaining the airtightness of the aluminum metal material, and the impregnation method includes pores generated in the metal material due to gas or uneven cooling rate and shrinkage during die-casting. It proceeds by filling the cracks with a sealant.

That is, after dipping the impregnated material (hereinafter referred to as “metal material”) for a predetermined time in the vacuum impregnation tank, the metal material is impregnated through a series of working processes such as rinse and hardening. will be.

However, there is a problem in that the impregnation liquid is excessively consumed because the impregnation liquid buried in the inner / outer surface of the metal material dipped into the impregnation tank cannot be properly separated / recovered.

In particular, the impregnation liquid buried on the surface of the metal material is mixed with the rust solution used in the rinsing process performed after the impregnation process and disposed of as it may be a factor causing environmental pollution.

In order to improve this problem, the metal material is removed from the impregnation tank, and then separated / recovered in a separate collection tank before the rinsing process is performed.

However, such separation / recovery work is carried out in such a way that the impregnating liquid is naturally dropped while the metal posture is placed in a fixed state while the posture is slightly changed, and thus the overall work efficiency may be reduced.

Moreover, a satisfactory separation / recovery efficiency cannot be expected by the method of naturally dropping the impregnation liquid while leaving the metal material in a stationary state.

An object of the present invention for solving the above-mentioned conventional problems is to provide an impregnation system comprising a dryer that can properly separate or recover and dry the impregnation liquid, washing water and hardened water buried on the surface of the metal material.

It is yet another object of the present invention to provide an impregnation system that excludes rinse (using rust inhibitor) process steps (apparatus) which may be a factor causing conventional environmental pollution.

It is another object of the present invention to provide an impregnation system that can shorten the process time of impregnating a metal material by eliminating the rinse process step and including a dryer.

The impregnation system according to an embodiment of the present invention to solve the above-mentioned conventional problems and to achieve the above object is an impregnator to impregnate a metal material (automobile parts, castings or sintered body), and washes the metal material after impregnation through the impregnator. An impregnation system comprising a washing tank, a curing tank for curing the washed metal material, and a dryer for dehydrating and drying the metal material after curing, the dryer comprising: a frame; A separation tank having an inner space of which one side is opened and installed on the frame; An opening / closing portion coupled to one side of the separation tank and pivoted about a hinge point by a driving source (hydraulic cylinder and piston rod) to open or block an open surface of the inner space; A drum having a rotating shaft and rotatably positioned in an inner space of the separating tank about the rotating shaft; A loading basket having a receiving space of an inner metal material in a cylindrical or polygonal shape having holes formed on the outside thereof and detachably mounted to the drum; A driving unit configured to include a motor and a reducer, and directly connected to the rotating shaft of the drum by a coupling outside the separation tank; A controller for controlling the rotation speed and the direction of the drum; A heater unit for supplying hot air into the separation tank; And a storage tank connected to the separation tank and a recovery pipe so that the impregnation liquid, the washing liquid or the hardened water contained in the internal space of the separation tank is recovered to the storage space side, wherein the control unit controls the drum rotation speed of the metal impregnation solution, the washing water and the curing. It is set to control the driving unit to rotate within the range of 100 ~ 120rpm when dehydration of the water, and to control the driving unit to rotate within the range of 2 ~ 10rpm when drying the metal material with hot air Implemented as a control panel, the heater unit comprises a heater for generating hot air of 70 ~ 120 degrees, a blower and blower tube for transmitting the hot air generated in the heater to the separation tank, and a circulation pipe for circulating the heat inside the separation tank One side of the recovery pipe includes various foreign substances contained in the impregnation liquid, the washing liquid or the hardened water recovered to the storage tank side. And a characterized in that it comprises removing foreign matter separating / removing the fluid filter unit.

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As described above, the impregnation system according to an embodiment of the present invention has an effect of properly separating or recovering the impregnation liquid, the washing water, and the hardened water which are buried on the surface of the metal material, including a dryer capable of dehydration and drying.

In addition, the impregnation system according to an embodiment of the present invention has the effect of reducing the emission of substances causing environmental pollution by eliminating the rinse process step (apparatus).

In addition, the impregnation system according to an embodiment of the present invention has the effect of shortening the process time of impregnating a metal material by excluding a rinse process step and including a dryer.

1 is a view showing an impregnation system according to an embodiment of the present invention.
2 is a view showing the overall structure of a dryer according to an embodiment of the present invention.
3 is a view showing a detailed structure of the separation tank and the loading basket of the dryer according to an embodiment of the present invention.
4 is a view showing a driving unit of the dryer according to an embodiment of the present invention.
5 is a view showing a protection net of the dryer according to an embodiment of the present invention.
6 is a view showing a heater of the dryer according to an embodiment of the present invention.

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

In general, impregnation is to maintain airtightness and prevent leakage of parts such as transmission cases, engine blocks, cylinder heads, manifolds, and impregnated materials (such as metal materials) such as castings or sintered bodies. To fill the pores (crack) and cracks generated in the metal material with a sealant (sealant).

Therefore, the metal material to be impregnated in the impregnation system according to an embodiment of the present disclosure is not limited to any particular component (product), and it is preferable to view the material of metal material that needs to prevent airtightness or leakage. Do.

1 is a view showing an impregnation system according to an embodiment of the present invention.

As shown in FIG. 1, the impregnation system 100 according to an embodiment of the present invention includes an impregnator 200 for impregnating a metal material, a liquid recovery unit 300 for recovering impregnation liquid after impregnation, and impregnation. It consists of a washing tank 400 for washing the metal material after the liquid recovery, a curing tank 500 for curing the washed metal material, and a dryer 600 for dehydrating and drying the metal material after curing.

Here, the impregnator 200 is connected to the storage tank 210 for storing the impregnation liquid, and further includes a vacuum pump 220 and a pressure tank to apply a vacuum and pressure during impregnation. At this time, the pressure tank is configured integrally with the impregnator 200.

In addition, the liquid recovery unit 300 recovers the impregnation liquid by centrifugal separation by rotating in both directions through the motor.

In addition, the washing tank 400 washes the metal material with washing water (water) at room temperature throughout the primary and secondary through the primary washing tank 410 and the secondary washing tank 420.

Moreover, the hardening tank 500 hardens a metal material with 60-100 degree hardening water (hot water).

The dryer 600 is dehydrated at 100 to 120 rpm through a motor and then dried for 30 to 40 minutes with hot air in the range of 80 to 120 degrees.

At this time, the dryer 600 further includes a heater for supplying hot air.

2 is a view showing the overall structure of the dryer according to an embodiment of the present invention, Figure 3 is a view showing a detailed structure of the separation tank and the basket for loading of the dryer according to an embodiment of the present invention, Figure 4 5 is a view showing a driving unit of a dryer according to an embodiment of the present invention, Figure 5 is a view showing a protection net of the dryer according to an embodiment of the present invention, Figure 6 is a heater unit of the dryer according to an embodiment of the present invention The figure shown.

2 to 6 illustrate a dryer 600, a reference numeral 610 designates a frame.

Here, the frame 610 may be formed in the shape of a frame having an appearance as shown in FIG. 1 by welding or bolting a plurality of metal shaped steels (or metal bars) in a conventional manner.

The separation tank 620 is positioned on the frame 610. The separation tank 620 provides a space for centrifugally removing the impregnation liquid, the washing water and the hardened water 20 deposited on the surface of the metal material 10.

That is, the separation tank 620 may be formed in a cylindrical or polygonal shape having an inner space of which one surface is opened, and is fixedly installed on the frame 610 with the open surface of the inner space facing upward.

At this time, the separation tank 620 may be processed to a metal plate made of steel or stainless steel having excellent durability and corrosion resistance, or poured into a metal mold and molded in a conventional manner to have a cylindrical or polygonal tubular appearance.

In addition, the opening and closing part 630 is installed in the separation tank 620. The opening and closing part 630 is for blocking or opening the internal space opening surface of the separation tank 620 to the outside.

That is, the opening and closing portion 630 is connected to one side of the separation tank 620 and the hinge coupling as shown in Figure 2 is installed so as to rotate around the hinge point, the opening and closing plate 631 is driven by the hydraulic cylinder 632. It is set to open and close.

For example, by connecting the end of the piston rod 633 of the hydraulic cylinder 632 with one side of the opening and closing plate 631, the internal space of the separation tank 620 while pushing or pulling the opening and closing plate 631 with the piston rod 633. Can be opened or blocked. (See Fig. 3)

As such, when the opening and closing unit 630 is installed, the internal space of the large separation tank 620 can be automatically opened and closed easily. In particular, the centrifugal separation operation inside the separation tank 620 blocks the open surface of the internal space. By maintaining the state, the impregnation liquid, the washing water, and the hardened water 20 protrude out of the separation tank 620, or foreign substances from the outside may be prevented from entering the separation tank 620.

In addition, since the metal material 10 mounted inside the separation tank 620 can be prevented from being thrown out by the centrifugal force, it is possible to secure further improved operational stability.

Then, the drain port 621 is attached to one side of the separation tank 620. Although not shown in the drawing, the drain 621 has a structure in which a passage is opened and closed by a valve, and is formed to communicate with the internal space at one lower side of the separation tank 620. (See Fig. 2)

That is, the drain 621 serves as a kind of drain passage for discharging the impregnation liquid, the wash water, and the hardened water 20 contained in the working space (inner space) to the outside of the separation tank 620.

Dryer 600 according to an embodiment of the present invention includes a drum (drum, 640).

The drum 640 has a rotation shaft 641 at a central portion of one surface thereof, and is installed inside the separation tank 620 as shown in FIG. 2 so as to be rotated about an axis of the rotation shaft 641.

The drum 640 may be formed in a disc shape corresponding to the circumference of the inner space of the separation tank 620, and the rotating shaft 641 is attached to a central portion of the separation tank 620 in an upright position.

Although not shown in the drawing, a plurality of holes are formed to penetrate the surface of the drum 640. These holes serve as a passage through which the impregnation liquid, the washing water, and the hardening water 20 accumulated on the drum 640 can flow down.

At this time, the rotating shaft 641 has a posture penetrating the bottom surface in the separation tank 620 as shown in Figure 2 is fixedly rotatably installed. Therefore, the drum 640 can be rotated about the rotating shaft 641 in the inner space of the working tank (separation tank).

In addition, the rotating shaft 641 may be fixed to the separation tank 620 in a rotatable state while being supported by a bearing 662 (for example, a thrust bearing) installed under the separation tank 620.

As such, the structure in which the rotating shaft 641 is rotatably fixed to the separation tank 620 using the bearing 662 may be easily implemented by those skilled in the art, and thus a detailed description thereof will be omitted. do.

Dryer 600 according to an embodiment of the present invention, includes a basket for loading (650).

Here, the loading basket 650 has a storage space having one surface open as shown in FIG. 3, and has a cylindrical or polygonal shape in which a through hole (not shown) is formed in the circumferential surface and the bottom surface forming the storage space.

In addition, the loading basket 650 is formed to have a rigidity and durability capable of withstanding load or pressure when transporting the metal material 10 contained in the storage space.

The loading basket 650 may be mounted on the drum 640 located inside the separation tank 620 while being moved by a conventional transfer device such as a hoist although not shown in the drawing.

Therefore, by using the loading basket 650, the metal material 10 can be simply stacked in a state in which the centrifugal separation operation is possible in correspondence with the internal space of the separation tank 620.

In particular, when the centrifugal separation operation is carried out while the metal material 10 is stored in the loading basket 650 as described above, for example, the metal material 10 is flowed by the centrifugal force to separate the separation tank 620. It is possible to prevent the phenomenon of contact and breakage with the inner surface of the.

Dryer 600 according to an embodiment of the present invention, the driving unit 660. The drive unit 660 is configured to enable power generation and transmission for forward / reverse rotation of the drum 640.

To this end, in the present embodiment, as shown in FIG. 4, the motor 662 and the reducer 661 are used on the frame 610 in a state directly connected to the rotating shaft 641 of the drum 640 below the separation tank 620. Is installed.

That is, the drive shaft of the motor 662 is connected to the reducer 661 in a conventional manner, and the reducer shaft of the reducer 661 is directly connected to the end of the rotary shaft 641 by a coupling 663.

According to such a structure, the rotational force of the motor 662 can be transmitted directly to the rotating shaft 641 in a state in which the rotational force is decelerated at a constant speed via the reducer 663.

Therefore, the structure is simpler compared to the structure that transmits power by connecting with power transmission members such as chains / sprockets or belts / pulleys, so that the space occupied can be reduced, and in particular, friction or slippage can be avoided during power transmission. Minimization can ensure driveability and operational stability.

In addition, a protection net 664 may be further installed at a connection portion between the driving unit 660 and the rotation shaft 641 in a state of enclosing the coupling 663 as shown in FIG. 5.

The protection net 664 may prevent a safety accident due to various foreign matters or body contact by covering the coupling part 663 that is exposed to the outside when the driving unit 660 is driven.

Dryer 600 according to an embodiment of the present invention includes a control unit 670.

The control unit 670 is to control the driving of the driving unit 660 to further increase the separation efficiency of the impregnation liquid, the washing water and the curing water 10 during the centrifugal separation operation.

The control unit 670 is set to control the rotational direction and speed of the drum 640 by the drive unit 660, using a conventional control panel.

That is, when the separation / recovery operation of the impregnation liquid, the wash water, and the hardened water 20 in a state in which the metal material 10 is contained in the separation tank 620, the drum 640 is at least one time / reverse for a predetermined time. The driving of the driving unit 660 may be controlled to rotate in alternating directions.

At this time, the control unit 670 controls the drive unit 660 so that the drum 640 rotates within the range of 100 to 120 rpm when the impregnation liquid, the washing water, and the hardening water 20 are dehydrated in the metal material 10. When drying (10) by hot air, it is preferable to control the drive part 660 so that the drum 640 may rotate in the range of 2-10 rpm.

According to the control structure of the rotation direction, the impregnation liquid, the washing water and the hardened water 20 can be separated more smoothly because the metal material 10 can be rotated forward / reversely in the separation tank 620.

When the drum 640 is rotated in one direction, for example, an inverter may be installed on the controller 670 side so that the drum 640 may be operated at a low speed during initial rotation. The rotational force of can be controlled.

According to the rotation speed control structure, the metal material 10 is prevented from flowing due to inertia when the drum 640 is rotated in the separation tank 620, and the load of the metal material 10 is prevented. The phenomenon of overload can be suppressed as much as possible.

Therefore, the controller 670 may allow the impregnation liquid, the washing water, and the hardened water 20 buried in the metal material 10 to be separated smoothly by centrifugal separation while appropriately controlling the driving of the driving unit 660. have.

Dryer 600 according to an embodiment of the present invention, includes a heater 680. The heater 680 generates 70-120 degrees hot air to dry the metal material 10 after the impregnation liquid, the wash water, and the hardened water 20 which are buried in the metal material 10 are separated by a centrifugal separation method. A heater 681, a blower 682 and a blower tube 683 for transmitting hot air generated from the heater 681 to the separation tank 620, and a circulation pipe for circulating heat inside the separation tank 620 ( 684).

To this end, in the present embodiment, as shown in FIG. 6, a blower 682 for transmitting heat generated from the heater 681 and the heater 681 to the separation tank 620, one side of the separation tank 620, and a blower 682. A blower tube 683 for supplying hot air to the separation tank 620 and a blower 682 connected to the other side of the separation tank 620 in which the blower tube 683 is located to circulate the hot air in the separation tank 620. The heater 680 composed of the circulation pipe 684 is connected to the separation tank 620.

That is, the heater 680 is transmitted to the blower 682 hot air within 70 ~ 120 degrees generated by the heater 681, the hot air is transmitted into the separation tank 620 through the blower tube 683.

In addition, a portion of the hot air supplied in the separation tank 620 is delivered to the blower 682 through the circulation pipe 684 and transmitted again into the separation tank 620 through the blower tube 683, thereby separating the inside of the separation tank 620. The hot air circulation may dry the metal material 10 in a short time.

The dryer 600 according to an embodiment of the present invention may further include a storage tank 690 and a debris removing unit 692.

Here, the storage tank 690 is provided with a storage space of a predetermined size therein, as shown in Figure 2, is located apart from the separation tank 620, and connects the recovery pipe 691 therebetween.

One end of the recovery pipe 691 is connected to the outlet 621 of the separation tank 620, the other end is connected to the inlet 693 of the storage tank 690.

According to such a structure, the impregnation liquid, the washing water, and the hardening water 20 separated from the metal material 10 in the separation tank 620 are stored in the storage tank 690 through the recovery pipe 691. At this time, although the recovery pipe 691 is not shown in the figure, the impregnation liquid, the washing water or the hardened water 20 separated from the metal material 10 may be connected to the sewage / wastewater treatment device.

In addition, an ordinary fluid pump 694 is installed at one side of the recovery pipe 691 so that the impregnation liquid, the wash water, and the hardened water 20 are smoothly along the pipeline of the recovery pipe 691 by the pumping. Can be supplied.

The foreign substance removal unit 692 is for removing various foreign substances contained in the impregnation liquid, the washing water and the hardened water 20 which are moved from the separation tank 620 side to the storage tank 690 side.

That is, the foreign material removing unit 692 is composed of a fluid filter and may be installed on one side of the recovery pipe 691 as shown in FIG. 2.

According to this structure, when the impregnation liquid, the washing water and the hardened water 20 is moved from the separation tank 620 side to the storage tank 690 side through the recovery pipe 691 in the impregnation liquid, the washing water and the hardened water 20. Foreign substances (various metals) contained can be easily separated and removed.

As described above, the impregnation system 100 according to an embodiment of the present invention, including a dryer 600 that can be dewatered and dried, the impregnation liquid, the washing water and the hardened water 20 which are buried on the surface of the metal material 10. It is effective to separate or recover.

In addition, the impregnation system 100 according to an embodiment of the present invention has the effect of reducing the emissions of substances causing environmental pollution by rinsing the process step (apparatus).

In addition, the impregnation system 100 according to an embodiment of the present invention has the effect of shortening the process time of impregnating the metal material 10 by including the rinse process step and including the dryer 600.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of course, this is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the equivalents as well as the claims to be described later.

10: metal material 20: impregnation liquid, washing water and hardened water
200: impregnation machine 300: liquid recovery machine
400: washing tank 500: curing tank
600: dryer 610: frame
620: separation tank 621: drain
622: bearing 630: opening and closing
631: opening and closing plate 632: hydraulic cylinder
633: piston rod 640: drum
641: rotating shaft 650: loading basket
660: drive part 661: reducer
662: motor 663: coupling
664: protection network 670: control unit
680: heater 681: heater
682 Blower 683 Blower
684: circulation pipe 690: reservoir
691: recovery pipe 692: foreign matter removal unit
693: inlet 694: fluid pump

Claims (9)

An impregnator 200 for impregnating a metal material (auto parts, castings or sintered bodies: 10), a washing tank 400 for washing the metal material 10 after impregnation through the impregnator 200, and the washed metal In the impregnation system 100 composed of a curing tank 500 for curing the material 10 and a dryer 600 for dehydrating and drying the metal material 10 after the curing,
The dryer 600,
Frame 610;
A separation tank 620 having an inner space having one surface open and installed on the frame 610;
An opening / closing portion 630 which is hinged to one side of the separation tank 620 and rotates about a hinge point by a driving source (hydraulic cylinder and piston rods: 632 and 633) to open or block the open surface of the inner space;
A drum having a rotating shaft 641 and rotatably positioned in an inner space of the separation tank 620 about the rotating shaft 641;
A stacking basket 650 having a receiving space of the inner metal material 10 in a cylindrical or polygonal shape having holes formed therein and detachably mounted to the drum 640;
It is composed of a motor 662 and a reducer 661, and directly connected to the rotary shaft 641 of the drum 640 by the coupling 663 outside the separation tank 620 to the rotational force of the drum 640. A driving unit 660;
A controller 670 for controlling the rotation speed and direction of the drum 640;
A heater unit 680 for supplying hot air into the separation tank 620;
Storage tank 690 connected to the separation tank 620 and the recovery pipe 691 so that the impregnation liquid, washing liquid or hardened water contained in the internal space of the separation tank 620 is recovered to the storage space side;
The controller 670 controls the driving unit 660 to rotate the drum 640 to rotate within a range of 100 to 120 rpm when the impregnation liquid, the washing water, and the hardening water 20 are dehydrated in the metal material 10. When the metal material 10 is dried by hot air, the driving unit 660 is controlled to rotate within a range of 2 to 10 rpm, and the control panel is set to control the rotational direction of the driving unit 660.
The heater 680 may include a heater 681 for generating hot air at 70 to 120 degrees, a blower 682 and a blower tube 683 for transmitting the hot air generated from the heater 681 to a separation tank, and the separation tank ( 620 consists of a circulation pipe 684 for circulating the heat inside,
An impregnation system, characterized in that one side of the recovery pipe 691 includes a foreign material removal unit 692 for separating / removing various foreign substances contained in the impregnation liquid, the washing liquid or the hardened water recovered to the storage tank 690 side by a fluid filter. . delete delete delete delete delete delete delete delete

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