KR100650131B1 - Apparatus for dry cleaning - Google Patents

Abstract

A dry cleaning device is provided to regulate diameter of inputted sublimated solid particles, to always mix a certain amount of sublimated solid particles to pressed air, and to reduce consumption of the pressed air and the sublimated solid particles. A dry cleaning device comprises a selecting unit(300) for choosing an inputting path of sublimated solid particles stored at a hopper; a crushing unit(400) breaking the sublimated solid particles inputted through the selecting unit; and a cleaning medium producing unit(500) mixing the sublimated solid particles broken through the crushing unit or the sublimated solid particles stored at the hopper and inputted by the selecting unit continuously to a certain amount with pressed air and then injecting out.

Description

Dry cleaner {Apparatus for dry cleaning}

1 is an external perspective view of an embodiment of a dry cleaning apparatus according to the present invention.

Figure 2 is a perspective view of the main part of an embodiment of a dry cleaning apparatus according to the present invention.

3 is a cross-sectional view of FIG. 2.

4 is a detailed perspective view of a selection unit applied to the present invention.

5 is a perspective view of a grinding unit applied to the present invention.

6 is a cross-sectional view of FIG. 5.

7 is a sectional view of the grinding roller of the grinding unit.

8 is a perspective view illustrating a combined state of the cleaning medium generating unit and the buffer support unit applied to the present invention.

9 is a partial cutaway perspective view of FIG. 8.

10 is a front perspective view of FIG. 8.

11 and 12 are each an embodiment plan view of the mixing unit applied to the present invention.

13 and 14 are photographs comparing the cleaning power difference according to the particle size of the dry ice particles.

* Description of the symbols for the main parts of the drawings *

100: hopper 200: control panel

300: selection part 400: grinding part

500: cleaning medium generating unit 600: buffer support unit

700: spindle motor 800: acceleration part

The present invention relates to a dry cleaning apparatus, and more particularly, to a dry cleaning apparatus in which sublimable solid particles are mixed with pressurized air and sprayed onto a surface of a cleaning object.

In general, a dry cleaning device is a device that sprays a sublimable solid particle such as pellet-shaped dry ice with high pressure air and sprays it onto a surface of a cleaning object.

The dry cleaning device includes an inlet for injecting sublimable solid particles, a cleaning medium generation unit for mixing the injected sublimable solid particles with high pressure air, and an injection unit for spraying the cleaning medium on the surface of the cleaning object. .

Such a conventional dry cleaning apparatus mixes injected sublimable solid particles with pressurized air and sprays them through an injection unit, and there is no means for controlling the particle size of the sublimable solid particles, and thus it is not easy to adjust the cleaning power.

In addition, since a pellet-shaped dry ice having a particle size of about 3 mm is mainly used, when the surface is weak or sprayed on a structurally precise cleaning object, there is a problem such as damaging the surface of the cleaning object or breaking a precise circuit. have.

In addition, the cleaning medium generating unit of the conventional dry cleaning apparatus is a structure for periodically supplying a constant amount of sublimable solid particles to the pressurized air flowing to the injection unit, the section and the sublimable solid particles are periodically supplied The section not supplied is repeated.

In such a structure, the cleaning is performed when the pressurized air containing the sublimable solid particles is sprayed on the surface of the cleaning object, but the cleaning is performed when the pressurized air containing the sublimable solid particles is sprayed on the surface of the cleaning object. Will not be achieved.

Therefore, when the large area flat panel display substrate is cleaned, some of the cleaning may not be performed, and there is a problem in that the reliability of the cleaning using the dry cleaning device is deteriorated.

In addition, since only the pelletized sublimable solid particles having a relatively large particle diameter are used, the pressure of the pressurized air must be high, and the consumption of the sublimable solid particles is large and there is a problem in that it is not economical.

The present invention has been made in view of the above problems, and an object thereof is to provide a dry cleaning apparatus capable of controlling the particle size of the sublimable solid particles.

In addition, another object of the present invention is to provide a dry cleaning apparatus capable of always mixing a constant amount of sublimable solid particles in pressurized air.

In addition, another object of the present invention to provide a dry cleaning apparatus that can reduce the consumption of pressurized air and sublimable solid particles.

Dry cleaning apparatus of the present invention for achieving the above object, the selection unit for selecting the input path of the sublimable solid particles stored in the hopper, the grinding unit for grinding the sublimable solid particles introduced through the selection unit, and And a cleaning medium generating unit for mixing and spraying the sublimable solid particles crushed through the crushing unit or the uncrushed sublimable solid particles stored in the hopper fed from the selection unit to pressurized air to a uniform degree.

When described in detail with reference to the accompanying drawings, preferred embodiments of the dry cleaning apparatus according to the present invention as follows.

1 is a perspective view of one embodiment of a dry cleaning apparatus according to the present invention, Figure 2 is a perspective view of the main part of an embodiment of a dry cleaning apparatus according to the present invention, Figure 3 is a cross-sectional view of FIG.

Referring to this, in one embodiment of the dry cleaning apparatus according to the present invention, the control panel 200 controls the input path of the sublimable solid particles into the hopper 100 and the sublimable solid particles injected into the hopper 100. The selection unit 300 to determine according to, the grinding unit 400 for pulverizing the sublimable solid particles introduced from the hopper 100 by the selection of the selection unit 300, and the grinding through the grinding unit 400 The cleaning medium generating unit 500 for discharging the sublimable solid particles or the non-crushed sublimable solid particles of the hopper 100 introduced through the direct input port 310 of the selection unit 300 with the pressurized air. And a buffer support unit 600 for buffering the cleaning medium generating unit 500 and a gear box 710 and a main shaft 720 for transmitting the power of the spindle motor 700 to the cleaning medium generating unit 500. And an accelerator 800 for accelerating the cleaning medium of the cleaning medium generating unit 500, and the acceleration unit. It is configured to include a stand washed injection hose 820 and spray nozzle 830 to spray the medium acceleration.

Hereinafter, the configuration and operation of the dry cleaning apparatus of the present invention configured as described above will be described in more detail.

First, inside the hopper 100 and spread the sublimable solid particles evenly rotated wing 110 to be introduced through the crushing unit 400 or the direct injection hole 310 according to the selection of the selection unit 300 and Rotating blade drive shaft 120 is provided.

The rotary blade drive shaft 120 may be a main shaft 720 itself for transmitting the rotational force of the main shaft motor 700, it may be a drive shaft connected to the main shaft 720.

Sublimable solid particles added to the hopper 100 may be a pellet-shaped dry ice having a particle size of about 3mm, the particle size does not specify the technical idea of the present invention.

The sublimable solid particles introduced into the hopper 100 are selected by the selection unit 300 according to the control state of the control panel 200, and the cleaning medium generating unit 500 below the crushing unit 400 or the direct input port 310. Is supplied.

4 is a detailed perspective view of the selection unit 300.

Referring to this, the selector 300 includes a rotating upper plate 340 that rotates in response to the driving of the cylinder 330 controlled under the control of the control panel 200 in the upper portion of the fixed lower plate 320.

The fixed lower plate 320 is provided with an inlet 321 through which the sublimable solid particles can be injected into the crushing unit 400, and an inlet 322 connected to the direct inlet 310 is provided at one side thereof. The rotary top plate 340 is provided with inlets 341 and 342 which are selectively matched to two inlets of the fixed lower plate 320 according to the driving of the cylinder 330.

By such a structure, the user controls the operation of the cylinder 330 by controlling the control panel 200 to determine the input path of the sublimable solid particles introduced into the hopper 100.

That is, when the inlet 321 of the fixed lower plate 320 and the inlet 341 of the rotary upper plate 340 are matched with the driving of the cylinder 330, the sublimable solid particles of the hopper 100 are introduced into the pulverization unit. When the inlet 322 of the fixed lower plate 320 and the inlet 342 of the rotary top plate 340 are matched, the sublimable solid particles are introduced into the direct inlet 310.

When the sublimable solid particles are put into the crushing unit 400 by the operation of the selection unit 300 as described above, the crushing unit 400 crushes the sublimable solid particles and supplies them to the cleaning medium generating unit 500. do.

5 is a perspective view of the crushing unit 400, Figure 6 is a cross-sectional view thereof.

Referring to this, the crushing unit 400 has a crushing unit case having an inlet 411 connected to the inlet 321 provided on the fixed lower plate 320 of the selection unit 300 on the upper surface and the outlet 412 on the bottom surface. 410, a drive shaft 421 driven according to the power of the crushing motor 490 and rotatably coupled to the crushing unit case 410, and an inner drive shaft 421 of the crushing unit case 410. Drive grinding roller 420 coupled to the drive shaft, drive gears 422 and 423 fixedly coupled to both ends of the driving shaft 421 of the driving grinding roller 420, and a grinding part case spaced apart from the driving shaft 421 by a predetermined distance ( The driving gear 431 coupled to the driven shaft 431, the driven grinding roller 430 coupled to the driven shaft 431, and the driven shaft 431 at both ends of the driven grinding roller 430 Follower gears (432,433) for transmitting the rotational force of the (422,423) to the driven shaft (431), and is fixedly coupled to the inside of the crushing unit case (410) The driving grinding roller 420 and the driven grinding roller 430 is configured to include a brush 440 to prevent the sublimable solid particles are pressed.

The grinding unit 400 configured as described above is a driving grinding roller that rotates the pellet-shaped sublimable solid particles introduced through the inlet 411 by the selection of the selection unit 300 in the opposite direction by the grinding motor 490. Using 420 and the driven grinding roller 430 is pulverized into granular sublimable solid particles, and discharged through the outlet 412.

The granule-shaped sublimable solid particles are dry ice particles having a particle size of about 1 mm, and the particle size of the granule-shaped sublimable solid particles depends on the distance between the driving grinding roller 420 and the driven grinding roller 430. I can regulate it.

The distance between the driving grinding roller 420 and the driven grinding roller 430 may be adjusted by changing the diameters of the driving grinding roller 420 and the driven grinding roller 430.

The brush 440 is in contact with the outer surface of the driving grinding roller 420 and the driven grinding roller 430 at a predetermined pressure, the driving grinding roller 420 and the driven grinding roller ( The outer surface of the 430 to prevent the crushed powder of the sublimable solid particles to be compressed, so that the powder can be discharged through the outlet 412.

The brush 440 may be provided with a retraction control means at the rear end of the brush 440 to adjust the contact pressure between the drive grinding roller 420 and the driven grinding roller 430.

As described above, the present invention may obtain a granular sublimable solid particle using the grinding unit 400, and thus the cleaning medium generating unit 500 under the grinding unit 400 may be the grinding unit 400. It is possible to easily control the cleaning power by generating a cleaning medium by using the sublimable solid particles crushed through or the unsublimed sublimable solid particles introduced through the direct inlet 310.

7 is a cross-sectional view of the driving grinding roller 420 and the driven grinding roller 430.

Referring to this, the shape of the drive grinding roller 420 and the driven grinding roller 430 used in the dry cleaning device grinding unit 400 according to the present invention is to have a smooth outer peripheral surface, the driving grinding roller 420 ) And the curvature of the outer circumferential surface of the driven grinding roller 430 are arranged so as to overlap the 0.8 to 1mm always.

The structure of the driving grinding roller 420 and the driven grinding roller 430 as described above can increase the grinding area by grinding the sublimable solid particles to increase the grinding efficiency, sublimable solid compared to the grinding roller having a groove or irregularities in general. Compression of the particles can be prevented.

By using the drive grinding roller 420 and the driven grinding roller 430 having such a structure, it is possible to prevent the reduction of grinding efficiency due to the compression of sublimable solid particles and to increase the area of the grinding surface to improve the grinding efficiency. have.

The granule-shaped sublimable solid particles crushed through the crushing unit 400 or the pellet-type sublimable solid particles of the hopper 100 introduced through the direct inlet 310 may be a cleaning medium generating unit 500. It is supplied to and mixed with high pressure air and sprayed as a cleaning medium.

8 is a perspective view of the cleaning medium generating unit 500 and the buffer support unit 600 in a combined state, FIG. 9 is a partially cutaway perspective view thereof, and FIG. 10 is a front perspective view.

Referring to this, the cleaning medium generating unit 500 has an inlet 511 into which the sublimable solid particles crushed by the crushing unit 400 or the uncrushed sublimable solid particles of the hopper 100 are injected into the upper surface. The upper plate 510 is provided with a pressurized air inlet 512 connected to the pressurized air inlet pipe 580 from the side to receive the pressurized air and to be injected into the pressurized air inlet 513 provided on the bottom. A sublimation material that is interposed between the lower plate 520 and the upper plate 510 and the lower plate 520 having the injection hole 521 to which the mixed sublimable solid particles are sprayed to the bottom, and is introduced through the upper plate 510. Mixing unit 530 containing solid particles and rotating to a position where the pressurized air injection hole 513 of the upper plate 510 and the injection hole 521 of the lower plate 520 face each other, and mixing the pressurized air and the sublimable solid particles. And, the air flows to the side portion of the mixing section 530 And a side sealing part 550, which includes a plurality of coupling member 540 coupling the upper plate 510 and lower plate 520.

In addition, the buffer support unit 600 is configured to include a support plate 610, and a buffer protrusion 620 for buffering the support plate 610 and the lower plate 520.

The cleaning medium generating unit 500 serves to mix the sublimable solid particles with pressurized air, and for this purpose, the granule-shaped sublimable powder crushed in the grinding unit 400 through the inlet 511 of the upper plate 510. The uncrushed sublimable solid particles of the hopper 100 are supplied to the mixing unit 530 through the solid particles or the direct inlet 310.

An upper surface sealing portion 534 and a lower surface sealing portion 535 are inserted between the mixing portion 530, the upper plate 510, and the lower plate 520 to reduce wear due to the rotation of the mixing portion 530. do. The upper surface sealing part 534 and the lower surface sealing part 535 prevent the inflow of air into the area between the mixing part 530 and the upper plate 510 and between the lower plate 520.

In addition, the upper surface sealing portion 534 and the lower surface sealing portion 535 are respectively fixed to the upper plate 510 and the lower plate 520 by the fastening base 540, the material is to maintain the sealing and reduce wear You can use rulon.

The outer side of the mixing part 530 is sealed by the side sealing part 550. The side sealing portion 550 includes two sealing rings 551 and 552, respectively, having a step in which a lower surface and an upper surface are engaged. Each of the sealing rings 551 and 552 is a bottom surface of the upper plate 510 by screws 553. It is coupled to the upper surface of the lower plate 520 to prevent the side outflow of the pressurized air.

11 is a plan view of an embodiment of the mixing unit 530.

Referring to this, the mixing portion 530 is a disk-shaped rotating plate 531, the center portion is coupled to the main shaft 720, the upper and lower surfaces of the rotating plate 531 penetrates in a semi-circular arc, overlapping in the mutual arc direction And includes a plurality of semicircular pockets 532 positioned therein.

12 is another plan view of the mixing unit 530.

Referring to this, in another embodiment of the mixing unit 530 is located in the circular pocket 533 is overlapped in the arc direction of the rotating plate 531.

When the sublimable solid particles are introduced through the inlet 511 of the upper plate 510 while the mixing unit 530 rotates, the sublimable solid particles are contained in the pockets 532 and 533 of the mixing unit 530. do.

As the mixing unit 530 rotates, when the pockets 532 and 533 containing the sublimable solid particles are moved to the lower portion of the pressurized air injection hole 513 of the upper plate 510, the pressurized air inlet 512 of the upper plate 510 is rotated. Pressurized air flowing through the through air through the pocket (532,533) through the pressurized air injection hole 513, the pressurized air and the sublimable solid particles are mixed and the cleaning medium is injected.

Here, the cleaning medium may be different from the general meaning, but for convenience of description of the present invention, it is defined that the sublimable solid particles pulverized in the pressurized air are mixed or the sublimable solid particles pulverized in the pressurized air are mixed. do.

The shape of the pockets 532 and 533 of the mixing unit 530 is always located at the bottom of the pressurized air injection hole 513 of the upper plate 510 indicated by the dotted line, so that the pockets 532 and 533 or more in a predetermined area are always located. A cleaning medium in which pulverized sublimable solid particles or pulverized sublimable solid particles is mixed is produced.

Accordingly, the cleaning medium can maintain a constant cleaning power as long as the pressure of the pressurized air or the particle size of the sublimable solid particles are not changed.

The cleaning medium generated by the mixing unit 530 is discharged through the cleaning medium injection pipe 590 passing through the cleaning medium outlet 521 provided in the lower plate 520.

The cleaning medium discharged as described above is accelerated by the accelerator 800.

The accelerator 800 mixes the cleaning medium introduced through the cleaning medium injection pipe 590 and the accelerated air introduced through the accelerated air inlet pipe 810 to form the injection hose 820 and the injection nozzle 830. By spraying on the object to be cleaned, it is possible to obtain a stronger cleaning power as needed.

Vibration occurs according to the rotation of the mixing unit 530 and the inflow and outflow of pressurized air, and the vibration may be mitigated through the buffer support unit 600.

The buffer protrusion 620 of the buffer support part 600 may be made of a material having elasticity, such as rubber, and a groove is formed in the center thereof so that the fastening base 540 is inserted, and the elastic base is inserted into the fastening base 540. It may be provided with an elastic member such as a spring to give.

13 and 14 are photographs comparing the degree of surface damage of the cleaning object by spraying pellet-shaped dry ice and granule-shaped dry ice onto the same cleaning object, respectively.

Referring to this, printed matter sprayed with pellet-shaped dry ice having a particle size of about 3 mm using pressurized air at the same pressure cannot be recognized by the damage of the surface thereof, and granule-shaped dry ice having a particle size of about 1 mm cannot be recognized. The sprayed printed matter has less surface damage, so that the printed contents can be confirmed.

As such, the present invention can easily adjust the cleaning power in one dry cleaning device.

As described above, the dry cleaning device of the present invention can spray the sublimable solid particles supplied by mixing with pressurized air without pulverizing or pulverizing in consideration of the state of the cleaning object, thereby controlling the cleaning power. There is an effect that can prevent the damage.

In addition, the dry cleaning apparatus of the present invention allows a predetermined amount or more of the cleaning medium to always be mixed with the pressurized air in the process of mixing the cleaning medium and the pressurized air, thereby maintaining uniform cleaning power at all times, thereby preventing cleaning on the surface of the object to be cleaned. There is an effect of preventing the occurrence of the non-interval to improve the reliability of the cleaning.

In addition, the dry cleaning apparatus of the present invention can use sublimable solid particles crushed into granules, thereby reducing the amount of pressurized air and sublimable solid particles, thereby enabling more economic dry cleaning.

In addition, the dry cleaning apparatus of the present invention increases the grinding efficiency of the sublimable solid particles, prevents the sublimable solid particles from being squeezed to the grinding roller during the grinding, thereby extending the life of the apparatus.

Claims (14)

A selection unit for selecting an input path of the sublimable solid particles stored in the hopper; A grinding unit for grinding sublimable solid particles introduced through the selection unit; And Dry cleaning device comprising a cleaning medium generation unit for continuously spraying the sublimed solid particles crushed through the crushing unit or the uncrushed sublimable solid particles stored in the hopper introduced from the selection unit by continuously mixing a predetermined amount into the pressurized air. The method of claim 1, The selection unit, A fixed lower plate including an inlet communicating with the crushing unit and an inlet communicating with the cleaning medium generating unit; And And a rotary upper plate rotating at an upper portion of the fixed lower plate by driving a cylinder, and selectively matching an inlet provided in the hopper with an inlet of the fixed lower plate. The method of claim 1, The grinding unit, A grinding roller rotating in at least two different directions by the driving of the grinding motor; And Dry cleaning apparatus comprising a brush for separating and removing the sublimable solid particles are pressed on the surface of each grinding roller. The method of claim 3, The at least two grinding rollers, Dry cleaning device, characterized in that a constant interval is maintained, and has a plurality of curved surfaces to increase the fracture area. The method according to claim 1 or 3, The grinding unit dry cleaning apparatus, characterized in that for grinding the pellet (sublimation) pelletized sublimable solid particles into granule-like sublimable solid particles of 0.1 to 1mm particle size. The method of claim 1, The cleaning medium generating unit, A top plate which receives sublimable solid particles and pressurized air through different paths and supplies them to the bottom surface side; A lower plate having an injection hole for discharging the sublimable solid particles mixed with the pressurized air; And Rotating between the upper plate and the lower plate, dry cleaning apparatus comprising a mixing unit for moving the sublimable solid particles supplied from the upper plate and mixed with the pressurized air of the upper plate and discharged through the injection port of the lower plate. The method of claim 6, Dry cleaning device characterized in that it further comprises a main shaft and a main shaft motor for transmitting a rotational force to the mixing unit. The method of claim 7, wherein The main shaft extends to the inner central portion of the hopper, driving the rotary blades in the hopper to facilitate the introduction of sublimable solid particles. The method according to claim 6 or 7, The mixing unit, It is provided with a pocket for conveying the sublimated solid particles supplied to the position where the pressurized air is introduced, the pocket is sublimable solid particles supply of the dry cleaning device, characterized in that always at least a certain area in the position where the pressurized air passes. Device. The method according to claim 6 or 7, The mixing unit, A rotating plate rotating between the upper plate and the lower plate; And Dry cleaning apparatus comprising a plurality of semi-circular arc or circular pockets overlapping each other in the arc direction of the rotating plate. The method of claim 6, Drying device between the upper plate and the mixing portion and between the mixing portion and the lower plate, further comprising a surface sealing portion to reduce the wear caused by the rotation of the mixing portion. The method of claim 6, Dry cleaning device characterized in that it further comprises a side sealing portion located between the upper and lower plates of the outer surface portion of the mixing portion. The method of claim 6, And a buffer support part comprising a plurality of buffer protrusions contacting the bottom surface of the lower plate to cushion vibrations, and a support plate for supporting and fixing the bottom surfaces of the plurality of buffer protrusions. The method of claim 1, And an acceleration unit for accelerating by mixing the cleaning medium in which the pressurized air and the sublimable solid particles are mixed with pressurized air flowing into another path.

Images