KR20080032482A - Apparatus for washing frame of display device - Google Patents

Abstract

An apparatus for automatically washing a frame of a display device is provided to wash the frame automatically by moving the frame along a work path of a main body to pass sequentially through a washing tank, a rinse washing unit, a heat air unit and an air dry unit, thereby solving excessiveness of labor costs, increase of the cost and danger caused by usage of chemical washing liquid, and improving productivity by improving work speed and efficiency of the washing work. A transfer unit(11) is installed along a jig transfer path of a main body(10) to transfer a jig. A washing tank(12) receives washing liquid to remove pollutants remained on a frame. A rinse washing unit(13) sprays pure water by a pump to remove the washing liquid remained on the frame. An air shower unit(14) sprays air of normal temperature by an air nozzle, and removes the pure water remained on the frame. A preliminary dry unit(15) sprays air, heated by a heater, at high pressure to dry the frame preliminarily. A final dry unit(16) sprays air of normal temperature at high pressure to dry the frame finally.

Description

Apparatus for washing frame of display device}

1 is a front view showing the overall structure of the automatic frame cleaning apparatus according to an embodiment of the present invention

2 is a plan view of FIG. 1

3 is a side view of FIG. 1

Figure 4 is a block diagram showing a washing process of the automatic frame cleaning apparatus according to an embodiment of the present invention

5 is a perspective view showing a frame used in a general display device and a jig equipped with the same

<Explanation of symbols for the main parts of the drawings>

10: main body 11: transfer unit

12: washing tank 13: rinse cleaning unit

14: air shower unit 15: pre-drying unit

16: final drying unit 17: drive motor

18: middle sprocket 19: rotating shaft sprocket

20: chain 21: adapter

22: chemical tank 23: circulation pump

24: air injection pipe 25: pure water tank

26: injection pump 27: pure water injection pipe

28a, 28b, 28c: Air knife 29a, 29b: blower

30: air cutting unit

The present invention relates to an automatic frame cleaning device for a display device, and more particularly, using a cleaning liquid, pure water, or the like, for the press oil dregs remaining on a material after a press operation of a display device such as a lamp cover, a notebook frame, an LCD monitor frame, and the like. The present invention relates to an automatic frame cleaning device for a display device, including a step of washing by spraying with an air bubble and a pump pressure, followed by drying with high temperature compressed air.

Recently, with the development of information processing apparatuses, the demand for display devices (image display apparatuses or image display apparatuses) serving as interfaces between users and information processing apparatuses is rapidly increasing.

In particular, the development of high definition television (High Definition Television) is a part of the development, and the improvement of this problem continues to study the importance of the display device.

Types of such display devices are known, such as color cathode ray tube (CRT), liquid crystal display (LCD), fluorescent display (VFD), plasma display device (PDP) and the like.

However, as a display element satisfactory in relation to the development of high-definition television, which has not been technically completed yet, such display devices have been developed while maintaining mutually complementary relations at different positions.

Among the display devices described above, a liquid crystal display device having a competitive performance in recent years will be described.

First, the liquid crystal display is a device for displaying information by using the electrical and optical properties of the liquid crystal material injected into the liquid crystal display panel. Recently, a portable video camera, a digital camera, Applications such as navigation devices, various information devices, and communication devices of automobiles are gradually increasing.

The liquid crystal display device as described above requires a liquid crystal display panel assembly that receives an image signal from the information processing device and converts the signal into a liquid crystal control signal and then controls the amount of light transmitted through the liquid crystal to visually recognize the electrical image signal. Shall be.

The liquid crystal display panel assembly is again connected to a liquid crystal display panel for displaying an image using liquid crystal, a printed circuit board for applying an electrical signal to the liquid crystal display panel, and the liquid crystal display panel and the printed circuit board, It includes a flexible circuit board to reduce the planar area.

In addition, since the liquid crystal display uses liquid crystal, which is a light-receiving element that does not emit light by itself, the liquid crystal display device requires a backlight assembly installed on the lower surface of the liquid crystal display panel assembly in addition to the liquid crystal display panel assembly to provide light to the liquid crystal display panel assembly. do.

The above components are housed in a case for protection and fixation from external impact, and the bottom of the case sequentially receives the components of the backlight assembly, and above the liquid crystal display panel assembly.

On the other hand, in the liquid crystal display device, the frame is combined with the case in order to prevent the display panel assembly, which is simply mounted on the case, from being detached to the outside.

The frame is installed to support the outside of the display panel assembly. The frame is divided into a top frame and a bottom frame according to the front and rear positions of the display panel assembly, and is made of a metal material such as aluminum alloy or stainless steel (SUS).

The frame used in the liquid crystal display device has only a difference in size, and there is no big difference in overall shape. Referring to the shape and manufacturing process as follows.

The frame is formed into a rectangular shape having a top surface and four sides by forming a metal plate through a press process, and the center portion corresponding to the effective display area of the display panel is cut into a rectangular shape on the upper surface of the frame. The hole is formed.

In addition, there is a lamp cover or the like as a kind of the frame, which is also produced in a form that is bent into a substantially "C" shape through a pressing process.

In general, in order to manufacture a notebook or monitor frame or lamp cover of the shape as described above, a multi-stage pressing process is required. First, a metal disc is cut into a predetermined size and shape, and is cut to have a rectangular shape as a whole. The compound mold is used to cut out the contour and some holes at the same time.

Next, mark the plate as a base for post-processing, piercing the small holes as needed, embossing to create local protrusions, Z bending, burring, slits Additional processing such as slitting and engraving is performed.

Then, as a process of forming the sides along the four sides of the plate, the box bending (bending) bending the four sides of the plate in a 'b' shape by a certain width, so that the plate is the upper surface and four sides It consists of.

After the box bending for forming the side as described above, in order to form a square hole in the center of the upper surface of the frame, the center of the upper surface of the frame mounted on the piercing die (lower type) is opened with a piercing punch (upper type). Done.

After all the molding process is completed as described above, all the manufacturing process of the frame is completed through the washing process.

In the washing process, various oils (tapping oil, punched oil, etc.) and foreign substances remaining in the frame are removed by using a hydrocarbon-based cleaning liquid.

However, in the related art, such a washing process is performed by a worker's hand, and thus there are various problems such as excessive workforce and labor cost, an increase in cost, and a risk of using a chemical cleaning solution.In addition, productivity decreases due to low work speed and work efficiency. The situation is also pointed out as a big problem.

Therefore, the present invention is invented to solve the above problems, when the frame is loaded on the front inlet side of the main body by the drive of the transfer unit to move the frame along the working path of the main body washing tank, rinse cleaning unit, hot air And a new cleaning system that can automatically proceed with the whole process of unloading the frame at the rear exit of the main body after washing with chemicals → cleaning liquid removal → preliminary drying → final drying while passing through sections of the air drying unit. Implement the frame automatic cleaning device for the display device that can solve the problems such as excessive workforce and labor costs, cost increase, and risk of using chemical cleaning solution, and improve productivity by improving work speed and work efficiency of cleaning work. The purpose is to provide.

The present invention for achieving the above object is that the main body is configured to be long and long to form a conveying path of the jig in which a plurality of frames are mounted, while each component is installed and supported, the installation configuration along the jig conveying path of the main body It includes a transfer unit for transferring the jig, and a controller for controlling each operating element of the overall device, while receiving the cleaning liquid for cleaning the frame, the cleaning tank for removing contaminants remaining on the frame, the pure water by the pump Rinse cleaning unit to remove the cleaning liquid remaining on the frame by spraying, Air shower unit to remove pure water on the frame by spraying air at room temperature by the air nozzle, High pressure spraying air heated by the heater Final drying of the frame by high-pressure injection of pre-drying unit to pre-dry and air at room temperature The final drying unit to be adjusted is characterized in that it is configured by sequentially installing along the jig transfer path of the main body.

The transfer unit may include a driving motor installed at a longitudinal rear end of the main body to provide rotational force, a plurality of intermediate sprockets installed at respective positions near the driving motor and along the longitudinal direction of the main body, and the driving motor. It is connected between the rotating shaft sprocket and the intermediate sprocket, and is provided with a chain that provides the traction force for the jig transfer by transmitting the rotational force of the driving motor, and is arranged at equal intervals along the longitudinal direction of the main body, and intersects between the chains on both sides. It is characterized in that it is a chain drive method including a plurality of adapters to transport the jig to be installed as.

In addition, the washing tank includes a chemical tank filled with a predetermined amount of cleaning liquid, a plurality of circulation pumps installed at a predetermined position of the main body to suck and pump the cleaning liquid of the chemical tank, and in a state of being supported by the bracket of the main body. And a plurality of air ejection tubes arranged in the main body width direction and arranged at predetermined intervals in the main body longitudinal direction to form air bubbles, and being in a chemical tank while generating air bubbles through the respective air ejection tubes. Characterized in that it is to perform the cleaning on the frame on the jig to proceed to.

In addition, the rinse washing unit includes a pure water tank and a spray pump for pure water storage and supply, and a plurality of pure water spray pipes arranged to be long in the width direction of the main body and disposed at predetermined intervals in the longitudinal direction of the main body to spray pure water. It is configured, and characterized in that to remove the remaining cleaning liquid on the frame by the spray washing method by the pump.

In addition, the rinse cleaning unit is disposed in the longitudinal direction of the main body is characterized in that it consists of a rinse first washing unit and a rinse second washing unit which can perform the cleaning liquid removal operation for the frame twice in succession.

In addition, the pure water injection pipe is characterized in that it is installed in the form arranged in each of the upper side and the lower side of the jig transfer space including a frame.

The air shower unit may include a compressed air supply unit for supplying compressed air, and a plurality of air knives disposed on the main body in the width direction and arranged at predetermined intervals in the main body length direction. A plurality of injection nozzles are installed above, and each air knife is connected to the compressed air supply unit through an air supply pipe so that the compressed air supplied by the compressed air supply unit is injected into the frame through the injection nozzles of the air knife. It is characterized by.

In addition, the air knife is characterized in that it is installed in the form arranged in each of the upper side and the lower side of the jig transfer space including a frame.

The preliminary drying unit may include a plurality of blowers that suck air and send the air at high pressure and high speed, a plurality of air knives which are installed in the main body in the width direction and arranged at predetermined intervals in the longitudinal direction of the main body, and each of the blowers And a heater installed in the middle of an air supply pipe connected to each of the air knives from a discharge port side, and a plurality of injection nozzles are installed on the lengths of the air knives, and the air supplied by each blower After the heating through the spray nozzle of the air knife is characterized in that to be sprayed to the frame.

In addition, the air knife is characterized in that it is installed in the form arranged in each of the upper side and the lower side of the jig transfer space including a frame.

In addition, the air knife is characterized in that it is installed obliquely at a predetermined angle inclined with respect to the main body longitudinal direction.

In addition, the final drying unit comprises a plurality of blowers for sucking air and sending it out at high pressure and high speed, and at least two upper and lower air knives which are installed in the main body in the width direction and arranged at predetermined intervals in the longitudinal direction of the main body. And, a plurality of injection nozzles are provided on the length of each air knife, it characterized in that the air at room temperature supplied by each blower to the frame through the injection nozzle of the air knife.

In addition, between the inlet and outlet of the main body, between the rinse washing tank and the pre-drying unit is characterized in that the air cutting unit for preventing the inflow of the washing steam or the washing solution, respectively.

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

1, 2 and 3 are a front view, a plan view and a side view showing the overall structure of the automatic frame cleaning apparatus according to an embodiment of the present invention.

As shown in Figures 1 to 3, the automatic cleaning device provided by the present invention includes a main body 10 in which each component described later is installed and supported.

The main body 10 is manufactured in the form of a structure in which various members such as steel pipes, section steels, angles, angle members, plates, and the like are assembled and welded to each other, and are designed and manufactured appropriately for the purposes and uses of the present invention.

The main body 10 is configured to be elongated in one direction as a whole so that the frame can be transported along a predetermined path in which the work is performed. Accordingly, the longitudinal direction of the main body 10 becomes a conveying direction of the frame, and the frame is the main body 10. In order to transfer and proceed along the longitudinal direction from the front inlet side to the rear outlet side of the) to sequentially pass through the components for performing the operation of each step for the frame cleaning.

A plurality of casters may be installed at the lower end of the main body 10 to move the device.

Next, the automatic cleaning device of the present invention is installed along the longitudinal direction of the main body 10 is configured to transfer the transfer unit to the rear exit side along the working path when the frame to be cleaned is loaded at the front inlet side of the main body 10 And (11).

The transfer unit 11 is a component that is responsible for the transfer and support of the frame during the operation of each step, when the frame is loaded, that is, the jig equipped with a plurality of frames is placed in the working position of the main body 10 The entire jig including the frame is transported to sequentially pass each component installed along the longitudinal direction.

As the transfer unit 11, various types of known devices capable of transferring an object loaded at a work position along a predetermined work path may be used.

In a preferred embodiment, the transfer unit 11 is installed at a predetermined position of the main body 10 to provide a rotational force, and a plurality of intermediate sprockets rotatably installed at a predetermined position of the main body 10. (18) and both chains (20) installed between the rotary shaft sprocket (19) of the drive motor (17) and the intermediate sprocket (18) and operated under the rotational force of the drive motor (17); A plurality of bar-shaped adapters 21 are installed to be arranged at equal intervals along the working path of the main body 10 so as to be transversely between the chains on both sides, and to substantially transport the jig including the frame. It is configured to include).

For example, the adapter 21 at this time is able to transfer the jig in the form of pulling the pin on the lower end of the jig while being disposed long in the main body width direction.

First, the drive motor 17 is fixedly installed at the longitudinally rearward end position of the main body 10, and a plurality of intermediate sprockets 18 are disposed along the vicinity of the main motor 10 and the main body length direction. Is installed rotatably at the sprocket 19 and the intermediate sprocket 18 provided on the rotating shaft of the drive motor 17, and a chain for transmission is installed, and the rotational force of the drive motor 17 is increased. It is to be transmitted to the chain 20 for frame transfer through.

In addition, a plurality of intermediate sprockets 18 are installed at predetermined intermediate intervals in the longitudinal direction of the main body 10 along the longitudinal direction thereof, and the chain 20 is connected and installed using these intermediate sprockets, and also includes a frame. On the upper surface of the chain on which the jig is raised, a plurality of adapters 21 are arranged along the longitudinal direction of the main body at equal intervals before and after.

At this time, the adapters 21 serve to advance the jig while being driven together with the chain when the chain 20 operates.

To this end, the chain 20 which draws one closed curve trajectory between the intermediate sprockets near each motor and the intermediate sprockets in front of each motor so that the rotational force of the drive motor 17 can finally be transmitted to the driving of the adapter 21. This connection is installed.

Therefore, when the driving motor 17 is driven, the rotational force transmitted through the electric chain and the sprocket drives the chain 20, and the jig placed on the chain is transferred along the front and rear longitudinal directions of the main body.

In the transfer unit made as described above, as illustrated in FIG. 5, the frame 100 may be transported after being loaded in a state where a plurality of the jig 110 are mounted in a substantially rectangular frame shape.

Here, reference numeral 120 denotes a pin that is caught on the adapter side of the chain for transfer.

Next, the automatic washing apparatus of the present invention washes the frame conveyed along the longitudinal path, that is, the working path of the main body 10 by the transfer unit 11, using a washing liquid and washes the frame containing the washing liquid once more. After that, the respective components for drying the frame are sequentially disposed and installed along the main body longitudinal path.

That is, as a component installed along a working path (a jig transfer path including a frame) of the main body 10, a washing tank 12 of a dipping method using a cleaning liquid to clean the transported frame, and the contamination cleaning liquid remaining in the frame Rinse washing unit 13 for additional cleaning by spraying separate pure water to remove the air, the air shower unit 14 for blowing water containing the cleaning liquid remaining in the frame by spraying high-pressure compressed air to the frame, high pressure and high temperature The pre-drying unit 15 for spraying the heated air to the frame to pre-dry the frame, the final drying unit 16 for the final drying of the frame by spraying air at room temperature to the frame is installed.

Therefore, in the automatic washing apparatus according to the present invention, the frame is moved by the above-described transfer unit 11 along the working path of the main body 10 while the frame loading → frame cleaning → cleaning solution removal → preliminary drying by the respective components. → Final drying → Unloading the frame, the cleaning process can be completed.

For the components described above with reference to Figures 1 to 3 as follows.

First, the cleaning tank 12 is configured to be installed in the front of the work path of the main body 10 to perform the frame cleaning using the cleaning liquid, which is the first step, the chemical tank 22 filled with the cleaning liquid in the transported frame ) It is a component that removes and cleans process oil (taking oil, punching oil, etc.) and foreign substances on the frame by dipping.

To this end, the path of the chain passing through this section has a path that descends into the chemical tank and then rises again. Accordingly, the jig proceeded by the chain also follows the path of descending and rising of the cleaning liquid in the chemical tank. It can be cleaned in the form of being immersed in and then coming out again.

The washing tank 12 includes a chemical tank 22 in which a cleaning liquid is stored, a plurality of circulation pumps 23 for sucking and pumping the cleaning liquid stored in the chemical tank 22 through pipes, and the respective circulation pumps 23. And a plurality of air injection tubes 24 for forming the cleaning liquid circulated by the air in a bubble environment by using an injection nozzle, that is, generating bubbles in the cleaning liquid.

Here, the chemical tank 22 is installed on the body 10 or at a predetermined position outside the body structure.

In addition, a plurality of circulation pumps 23 are installed at the front and rear predetermined positions along the transport path of the frame in the main body 10, and the inlet side of each circulation pump 23 is provided with the chemical tank 22 and the cleaning liquid. It is connected through each pipe that is the suction passage of, the outlet side of each circulation pump 23 is connected to the tank side through a branch pipe (not shown) that is the discharge passage of the cleaning liquid is made to circulate the cleaning liquid.

The air injection pipe 24 is installed in the width direction of the main body 100 in a state of being fixed to the bracket of the main body 10, a plurality of air injection pipe 24 is arranged at a predetermined interval before and after each air Injection pipes are installed side by side with a neighboring air injection pipe.

A plurality of injection nozzles (not shown) are disposed and installed in the air injection pipes 24 in length, and the air injection pipes 24 are connected to an external compressed air source (not shown) to provide air. I can receive it.

In the present invention, the air injection pipe 24 is preferably installed in a tank in close proximity to the bottom of the frame moving space, thereby generating bubbles toward the frame through the injection nozzle immediately below the frame and In this case, the injection nozzle is installed to face the direction in which the frame moves.

That is, the nozzle injection direction of the air injection pipe disposed below is installed upward so that bubbles generated through the injection nozzles of the respective air injection pipes 24 directly affect the frame being transferred.

As a result, the cleaning liquid stored in the chemical tank 22 is driven by the circulation pump 23 to be sucked in, pumped, and circulated through the pipe, and under the condition that bubbles are formed by the air injection pipe 24, The cleaning of the frame that is locked can be performed.

The cleaning liquid used for washing the frame in the washing tank 12 uses a hydrocarbon-based cleaning liquid that is commonly used.

It is preferable to install a filter (back filter type) in the middle of the pipe connected to the inlet side of the circulation pump 23 in the cleaning tank 12 made as described above, the cleaning liquid filtered by the filter is circulated by the circulation pump 23 To be supplied.

In addition, the temperature of the cleaning liquid stored in the washing tank 12 is preferably maintained at about 50 ℃ using a known electric heater method, and it is preferable to manage the liquid level by the automatic detection by the automatic switch.

In addition, a plurality of drip tanks are installed in the lower part of the main body 10 so that the washing liquid which is frame-washed flows downward and is collected by each drip tank, and the contaminated washing liquid, that is, the waste washing liquid, collected in each drip tank is It is preferable to collect the waste washing liquid storage tank.

Next, the rinse cleaning unit 13 improves cleaning cleanliness by finally spraying clean pure water on the frame with high pressure to remove the contaminant cleaner remaining in the frame passing through the washing tank 12 and finally washing the frame once again. The main part is a constituent part, which is a constituent part installed at the rear of the washing tank 12 in the main body 10, and two rinse washing sections arranged successively, for example, a rinse first wash part 13a and a rinse second wash part. It consists of 13b.

The rinse cleaning unit 13 has a configuration similar to that of the washing tank 12 except that pure water is used as a washing medium and a spraying method other than a dipping method is employed.

For example, a pure water tank 25 in which pure water is stored therein, an injection pump 26 that sucks and pumps pure water stored in the pure water tank 25 through a pipe, and is injected by the injection pump 26. It consists of a plurality of pure water injection pipe 27 for injecting the purified pure water through the injection nozzle to the frame being transferred.

The rinse washing unit 13 also has a plurality of pure water injection pipe 27 is arranged side by side in the longitudinal direction at the same time a plurality of dogs are arranged long in the width direction of the main body 100 similar to the air injection pipe of the washing tank 12.

In particular, in the present invention, the pure water injection pipe 27 is preferably installed separately arranged on the upper side and the lower side of the frame moving space, through the injection nozzles provided in each of the upper and lower pure water injection pipes 27, Injecting pure water toward the frame from above, and in each of the pure water spray pipes 27, the spray nozzle is installed to face the direction in which the frame moves.

That is, in the case of the spray pipe disposed on the upper side, the spraying direction is installed downward so that the pure water sprayed by the high pressure through the spray nozzles of the pure water spray pipes 27 may be sprayed on the conveying frame. In the case of the officer, the spraying direction is installed upward.

As a result, the pure water stored in the pure water tank 25 is driven and pumped through the pipes and branch pipes by the driving of the injection pump 26 and supplied to each of the pure water spray pipes 27, and then each pure water spray pipe 27 ) Can be sprayed toward the frame through the spray nozzle.

In the case of the rinse washing unit 13 at this time, the temperature of the pure water stored in the pure water tank 25 is preferably maintained at about 50 ℃ by using a known electric heater method, and also by the automatic detection by the automatic switch It is desirable to manage the face value.

Next, the frame passing through the rinse cleaning unit 13 passes through the air shower unit 14 which removes the cleaning liquid or water present on the surface using high pressure compressed air.

The air shower unit 14 is installed in the rear of the rinse cleaning unit 13 in the frame conveying direction on the main body 10, a known compressed air supply unit (not shown) for supplying compressed air, and the compressed air supply unit It comprises a plurality of air knife (28a) for blowing the compressed air provided by the high pressure and high speed toward the frame.

The compressed air supply unit includes a blower for sucking and sending out air, and the blower is connected to each air knife 28a through an air supply pipe.

That is, the plurality of air knives 28a receive compressed air through respective air supply pipes branched from the compressed air supply unit, and each air knife 28a has its lengthwise direction for spraying the supplied compressed air. Accordingly, a plurality of injection nozzles (not shown) disposed at predetermined intervals are installed.

A plurality of air knives 28a are installed on the main body 10 at each position in front and rear directions, and are arranged to be installed long in the width direction of the main body 10, respectively. It can be sprayed onto the frame at a wind speed.

In the present invention, it is preferable to arrange the air knife 28a separately on the upper side and the lower side of the frame moving space. And spray nozzles are installed in each air knife to face the direction in which the frame moves.

That is, in the case of the air knife disposed in the upper side, the spraying direction is installed downward, and the air disposed in the lower side so that the compressed air that is injected at high pressure through the spray nozzles of the respective air knife 28a can be injected into the conveying frame. In the case of a knife, the spraying direction is installed upward.

In this way, according to the air shower unit 14, the compressed air supplied by the operation of the compressed air supply unit contains a cleaning liquid, pure water, and the like remaining in the frame while being injected at a high pressure to the frame being transferred through the air knife 28a. Water can be removed.

Next, the frame passing through the air shower unit 14 passes through a pre-drying unit 15 for pre-drying the surface of the frame using heated air of high pressure and high temperature.

The preliminary drying unit 15 is installed at the rear of the air shower unit 14 in the frame conveying direction on the main body 10, the configuration is similar to the configuration of the air shower unit 14, but simply by spraying compressed air Unlike the air shower unit 14 that washes off water, it is a kind of dryer that supplies high-temperature hot air at high pressure and high speed and sprays it to dry the surface of the frame.

The preliminary drying section 15 includes a plurality of blowers 29a for sucking air and sending them at high pressure and high speed, and in the middle of an air supply pipe connected to the following air knives 28b from the discharge port side of the blowers 29a. It comprises a well-known heater (for example, LEISTER HEATER) installed, and a plurality of air knives 28b for blowing high-pressure and high-speed hot air provided through the heater toward the frame.

That is, the discharge port of each blower 29a is connected to each air knife 28b through an air supply pipe, and a heater is installed in the middle of each air supply pipe, so that each blower 29a is connected to the high pressure and When the high speed air is sent out, the high pressure and high speed hot air heated through each heater is supplied to the air knife 28b.

Each air knife 28b is provided with injection holes formed at predetermined intervals along its longitudinal direction in order to inject the supplied hot air into the conveying frame.

A plurality of air knives 28b are disposed on the main body 10 at each position in the front and rear directions along the main body length direction, and are installed and installed in the width direction of the main body 10, respectively. It can be sprayed onto the frame with a constant air volume and wind speed.

The air knife 28b is preferably arranged separately and installed on the upper side and the lower side of the frame moving space, through the spray nozzles installed on each of the upper and lower air knife to inject hot air toward the frame from the top, bottom, each In the air knife, the spray nozzle is installed to face the direction in which the frame moves.

That is, in the case of the air knife disposed on the upper side, the spraying direction is provided downward, and the air knife disposed on the lower side so that hot air injected by the high pressure through the spray nozzles of the respective air knife 28b can be sprayed on the conveying frame. In the case of the injection direction is installed upward.

In particular, the air knife 28b is installed obliquely at an angle inclined with respect to the longitudinal direction of the main body 10 in a plan view, so that the frame continues while passing through a section corresponding to the entire length of the air knife. Drying may be performed, that is, drying of the frame may be performed over the entire section passing through the preliminary drying unit 15, thereby allowing the water removal effect, that is, the drying effect to be more efficiently performed.

Thus, according to the preliminary drying part 15, the high pressure and high speed air supplied by the operation of each blower 29a is heated by the heater in the said air supply line, and then sprays through each air knife 28b. It is possible to pre-dry the frame being transferred.

As described above, by pre-drying the frame before the final drying, which is the main drying, in a manner of transferring the high speed hot air to the frame to be cleaned, the effect of the final drying can be further maximized.

Next, the frame passing through the preliminary drying unit 15 passes through the final drying unit 16 for finally completely drying the surface of the frame using air at room temperature.

The final drying unit 16 is installed at the rear of the preliminary drying unit 15 in the frame conveying direction on the main body 10, and at least a pair of upper and lower air knives 28c disposed in the width direction of the main body 10 and It consists of a blower 29b for supply of air.

That is, the final drying unit 16 blows up and down the air knife connected to the blower side through a blower 29b for sucking air and sending it at high pressure and high speed, and branch pipes extending from the outlet side of the blower 29b. And 28c.

In the final drying unit 16, when the blower 29b is operated to send air, air is discharged upward and downward through the air knife 38c to completely dry the conveyed frame.

In addition, the present invention provides an air cutting unit 30 that is a means for effectively preventing the steam generated during the process is discharged to the neighboring process or out of the main body.

To this end, the inlet and outlet of the main body 10, that is, the position where the frame is loaded and unloaded, and between the rinse cleaning tank 13 and the pre-drying unit 15 includes an air nozzle or air knife, etc. The air cutting unit 30 is installed, thereby effectively preventing the washing steam or the washing liquid from flowing into the neighboring process.

On the other hand, there is provided a control box for operating and controlling the automatic washing apparatus of the present invention, the control box is provided with a controller for controlling the overall operation of the automatic washing apparatus according to the present invention.

For example, the controller controls each of the operating elements included in the automatic washing apparatus of the present invention. More specifically, each of the pumps, the pre-drying unit and the final drying unit of the transfer unit, the driving motor, the washing tank and the rinse washing unit. Control the flow rate.

In addition, the controller may be configured to control the operation of these devices when other optional devices are added to the automatic cleaning device of the present invention, for example, when a fire extinguishing device or a warning device is installed.

In a preferred embodiment, the controller can be configured to receive a signal from a plurality of temperature sensors installed at a predetermined position to control each operating element.

First, as a safety device for cleaning liquid management, a plurality of temperature sensing sensors (not shown) for detecting the ambient temperature at each position of the dipping section in which the washing tank is installed in the main body are installed, and the controller is provided within the washing tank from each temperature sensing sensor. When the temperature rises above the set value by inputting the temperature at each position, the operating elements of the whole device can be automatically stopped, and the fire extinguishing and warning devices can be operated.

In addition, a plurality of temperature sensing sensors for detecting ambient temperature at each position are installed in a hot air drying section in which the preliminary drying section is installed in the main body, that is, a section in which the hot air is being supplied and the frame being transported is dried. Can be connected to enable signal input.

In addition, the controller receives the temperature at each position in the hot air drying section from each temperature sensor so that the temperature condition in the hot air drying section can be maintained in the set temperature range, that is, the operation of the blower and the heater. Can be controlled appropriately.

Ideally, the set temperature range for controlling the temperature conditions of the hot air drying section is set to a minimum temperature condition for drying, and the temperature required for drying in the hot air drying section through the temperature condition control of the hot air drying section. The condition can be secured.

Here, the method for controlling each operating element using the controller as described above may be adopted without particular limitation as long as it is a method commonly known in the art.

Therefore, in the automatic washing apparatus according to the present invention, as shown in Fig. 4, after the jig in which the frame to be cleaned is mounted on the adapter of the front-side inlet chain of the main body is first loaded, the frame and As the jig moves along the working path of the main body, the jig passes through each section of the washing tank, the rinse washing unit, the air shower unit, the preliminary and the final drying unit, and the cleaned and dried frame is unloaded at the rear end of the main body.

As described above, according to another automatic cleaning device according to the present invention, after the frame is loaded, all the cleaning operations can be automatically performed through the process of product input → washing liquid dipping → washing liquid removal → air shower → pre-drying → final drying by the components. .

As described above, according to the automatic frame cleaning device for a display device according to the present invention, the frame is moved along the working path of the main body while passing through each section of the washing tank, rinse cleaning unit, hot air and air drying unit in order Cleaning is automatically performed through washing → cleaning solution removal → preliminary drying → final drying, which solves problems such as excessive workforce and labor costs, increased costs, and the presence of risks due to the use of chemical cleaning solutions. And it is effective to increase the productivity by improving the work efficiency.

Claims (13)

The main body 10 is configured to be long and formed to form a conveying path of a jig in which a plurality of frames are mounted, and each component is installed and supported, and is installed along the jig conveying path of the main body 10 to convey the jig. It includes a transfer unit (11), a controller for controlling each operating element throughout the device, while the cleaning tank 12 for removing contaminants remaining in the frame while receiving the cleaning liquid for cleaning the frame, by the pump Rinse washing unit 13 for spraying pure water to remove the cleaning liquid remaining in the frame, air shower unit 14 for removing pure water on the frame by spraying air at room temperature by an air nozzle, and heating by a heater Preliminary drying unit 15 for preliminarily drying the frame by high pressure injection of compressed air and final gun for final drying of the frame by high pressure injection of air at room temperature Sub-frame self-cleaning device of the display device is characterized in that the installation and configuration in order along the conveyance path of the jig body 10 to 16. The driving unit 17 of claim 1, wherein the transfer unit 11 is installed at a longitudinal rear end position of the main body 10 to provide rotational force, and the length of the vicinity of the driving motor 17 and the main body 10. A plurality of intermediate sprockets 18 are installed at each position along the direction, and are connected between the rotary shaft sprockets 19 and the intermediate sprockets 18 of the drive motor 17 and transmit the rotational force of the drive motor 17. Chain 20 provides a traction force for jig transfer, and is arranged in the same interval along the longitudinal direction of the main body 10 and installed in a form that spans between the chains of both sides while pulling the jig to transfer Frame automatic cleaning device for a display device, characterized in that the chain drive system configured to include an adapter (21) of. The cleaning tank (12) according to claim 1, wherein the washing tank (12) is provided with a chemical tank (22) filled with a predetermined amount of cleaning liquid and a plurality of circulations for sucking and pumping the cleaning liquid of the chemical tank (22) at a predetermined position of the main body (10). A plurality of air injection pipes 24 arranged in the tank in the width direction of the main body in the tank in a state supported by the pump 23 and the bracket of the main body 10 and arranged at predetermined intervals in the main body longitudinal direction to form air bubbles It is configured to include, and the frame auto-cleaning device for a display device, characterized in that to perform the cleaning of the frame on the jig proceeds to the dipping state in the chemical tank while generating air bubbles through each air injection pipe. The method of claim 1, wherein the rinse washing unit 13 is disposed in the width direction of the pure water tank 25 and the injection pump 26, the main body 10 for the pure water storage and supply and at the same time predetermined length of the main body It comprises a plurality of pure water injection pipe 27 is disposed at intervals to inject the pure water, the automatic frame cleaning device for a display device, characterized in that to remove the remaining cleaning liquid on the frame by the spray washing method by the pump . The rinse cleaning unit (13a) according to claim 1 or 4, wherein the rinse cleaning unit (13) is disposed in the longitudinal direction of the main body (10) so as to perform the cleaning liquid removal operation on the frame twice in succession. Frame rinsing apparatus for a display device, characterized in that consisting of a second rinse and rinse. The apparatus of claim 4, wherein the pure water injection pipe (27) is installed in the upper and lower sides of the jig transfer space including the frame, respectively. The air shower unit (14) of claim 1, wherein the air shower unit (14) is provided with a compressed air supply unit for supplying compressed air, and a plurality of air knives (28a) arranged in the width direction in the main body 10 at a predetermined interval in the main body longitudinal direction. And a plurality of injection nozzles are installed on the length of each air knife, and each air knife is connected to the compressed air supply unit through an air supply pipe, and the compressed air supply unit supplies the compressed air supply unit. Automatic frame cleaning device for a display device, characterized in that to inject air to the frame through the spray nozzle of the air knife. The apparatus of claim 7, wherein the air knife (28a) is installed in the upper and lower sides of the jig transfer space including the frame, respectively. The method of claim 1, wherein the preliminary drying unit 15 is a plurality of blowers (29a) for sucking air and sending it out at high pressure and high speed, and is installed in the main body 10 in the width direction and at a predetermined length in the longitudinal direction of the main body And a plurality of air knives 28b arranged in the air, and heaters provided in the middle of air supply pipes connected to the air knives 28b from the discharge port side of the blowers 29a. A plurality of injection nozzles are installed above, and the air supplied by each blower is heated through the heater and then sprayed to the frame through the spray nozzles of the air knife. . 10. The apparatus of claim 9, wherein the air knife (28b) is installed in the upper and lower sides of the jig transfer space including the frame. The apparatus of claim 9 or 10, wherein the air knife (28b) is installed obliquely at an angle inclined at an angle with respect to the main body length direction. The method of claim 1, wherein the final drying unit 16 is a plurality of blowers (29b) for sucking air and sending out at high pressure and high speed, and is installed in the main body 10 in the width direction elongated predetermined distance in the longitudinal direction of the main body At least two air knives 28c arranged in the upper and lower parts, and a plurality of injection nozzles are installed on the length of each air knife, and the air nozzles of the air knife Frame auto-cleaning device for a display device, characterized in that the spray through the frame through. The air cutting unit 30 of claim 1, wherein an air cutting unit 30 is provided between the inlet and the outlet of the main body 10 and the rinse washing tank 13 and the predrying unit 15 to prevent the inflow of washing steam or the washing liquid. Frame automatic cleaning device for a display device, characterized in that.

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