KR102625038B1 - Particle control apparatus for dry-ice - Google Patents

Abstract

The present invention relates to a dry ice particle control device that can selectively and freely control the particle size of dry ice and spray dry ice with the adjusted particle size at high speed with compressed air to cleanly clean various machinery and facilities. . The present invention provides a dry ice particle control device, comprising: a housing body; A support member assembled on the left and right sides of the housing body and connected to the shaft and bearings; a grinder axially disposed in an inner space of the housing body for grinding dry ice; an adjustment cam disposed opposite the grinder in the inner space of the housing body to adjust the size of the dry ice being ground; an air nozzle installed on a side of the grinder to spray air to eliminate frost caused by grinding; A stopper control unit axially coupled to the control cam and installed to maintain a minimum gap between the grinder and the control cam; and a pair of left and right grinder spacing rings installed between the grinder and the bearing to minimize contact between metals.

Description

Dry ice particle control device {PARTICLE CONTROL APPARATUS FOR DRY-ICE}

The present invention relates to a dry ice particle control device, and more specifically, the particle size of dry ice can be selectively and freely controlled, and the dry ice with the adjusted particle size is sprayed at high speed with compressed air to control various machinery and equipment. It is about a dry ice particle control device that can be cleaned cleanly.

In general, dry cleaning using sublimable replacement particles, such as dry ice, has recently been developed to clean the surface of the cleaning object without defects.

Dry ice, a type of sublimable solid particle used in the dry cleaning process, is in the form of pellets, and the pellet-shaped dry ice is mixed with high-pressure compressed air and sprayed on the surface of the cleaning object to clean the object.

Conventional dry ice cleaning devices remove foreign substances by spraying hard dry ice particles that are harmless to industrial facilities and the environment at high speed.

Since the amount and speed of the sprayed dry ice can be adjusted to some extent, foreign substances attached to the surface of devices and products made of various materials such as ceramics, synthetic resins, rare metals, fiber glass, rubber, plastics, and steel can be removed. there is. Dry ice particles sublimate into a harmless gas as soon as they hit the surface, removing only foreign substances without causing any damage to the surface being cleaned and leaving no secondary contaminants or moisture behind.

Adopting dry ice cleaning extends the life of equipment, reducing investment costs for new dies, molds, and molds. The time required for cleaning work and the time and cost required to collect and process secondary contaminants generated in conventional cleaning can be reduced, thereby reducing overall operating costs. Now, it is possible to completely clean production facilities or products without using volatile organic solvents (VOCs), substances that deplete the ozone layer (ODS), and solvents that cause wastewater, which are prohibited by environmental protection laws at industrial sites. .

Dry ice cleaning is widely used in all industrial fields such as food processing, confectionery, rubber, plastics, pharmaceuticals, automobile manufacturing, aircraft maintenance, aerospace, electrical and electronics, semiconductor industry, petrochemical, steel, printing, and molding industries. Dry ice cleaning is used in all industrial fields that still rely on chemicals such as shot blasting, steam cleaning, solvents, or conventional cleaning operations such as manual scraping, to reduce costs, improve productivity, improve quality, and protect the environment. A safe and clean working environment can be secured.

Looking at the configuration of a conventional dry ice cleaning device with the above-mentioned advantages, the upper part is wide and the lower part is narrow so that dry ice can be filled, a hopper has an inlet and outlet at the lower part, and a rotatable lower part of the outlet of the hopper. It is installed and connected to the supply groove of the rotor and the rotor, which forms supply grooves that can receive dry ice discharged from the outlet at regular intervals around the outer periphery, and discharges the dry ice falling from the supply groove with the compressed air of the compressor. It consists of a supply pipe that provides

In such a conventional dry ice cleaning device, when the rotor is rotated by a motor, dry ice is discharged from the hopper and filled into the supply groove formed on the outer periphery as the rotor rotates, and then falls when placed in the supply pipe. At this time, when compressed air is sprayed from the compressor, dry ice pellets are sprayed at high speed and collide with the surface of the cleaning object to remove the foreign material layer.

However, the conventional dry ice cleaner cannot control the particle size of the dry ice, so there is a problem in that the cleaning power cannot be adjusted.

Also, since it is not easy to control the cleaning power, there is a problem in that damage due to impact occurs when cleaning precision electronic components, etc.

Republic of Korea Patent Publication No. 10-0662241

Accordingly, the purpose of the present invention to solve the conventional problems described above is to provide a dry ice particle control device that allows the cleaning power to be adjusted by selectively and freely adjusting the particle size of dry ice.

Another object of the present invention is to provide a dry ice particle control device for improving the safety and performance of the device by installing an air injection nozzle in the dry ice particle control device to shake off the remaining dry ice on the rotating grinder after cutting the particles. .

Another object of the present invention is to prevent axial freezing due to frost by installing a gap ring between metals in a dry ice particle control device.

Another object of the present invention is to precisely manufacture and provide the angle of the toothed blade of the grinder at 74 degrees and 90 degrees, so that dry ice can be pulverized precisely and with sublimation as much as possible suppressed, thus protecting surrounding devices. The aim is to provide a dry ice particle control device that prevents freezing and continuously improves device operation performance.

In order to achieve the above-described object, the present invention provides a dry ice particle control device, comprising: a housing body; A support member assembled on the left and right sides of the housing body and connected to the shaft and bearings; a grinder axially disposed in an inner space of the housing body for grinding dry ice; an adjustment cam disposed opposite the grinder in the inner space of the housing body to adjust the size of the dry ice being ground; an air nozzle installed on a side of the grinder to spray air to eliminate frost caused by grinding; A stopper control unit axially coupled to the control cam and installed to maintain a minimum gap between the grinder and the control cam; and a pair of left and right grinder spacing rings installed between the grinder and the bearing to minimize contact between metals.

Additionally, the housing body includes a polygonal box-shaped body; a cam connection groove that is recessed inward from one side of the body to accommodate the adjustment cam; a collection groove that is open in the form of a long groove on the inner bottom surface of the body to collect the dry ice being ground; It may be characterized by including a guide inclined portion formed to be inclined between the cam connection groove and the collection groove to guide falling dry ice to the collection groove.

In addition, one upper side of the body where the cam connection groove is formed may be further equipped with a backflow prevention plate to prevent the residue of the dry ice that is bolted and ground from flowing back to the top.

Additionally, the grinder includes a cylindrical body; a rotation axis coupled to the inside of the body; Grinding blades in the shape of serrated blades are formed on the outer periphery of the body to continuously form dry ice at regular intervals, and the angle between one blade and the blade is formed at 90 degrees.

Additionally, the grinding blade of the grinder may be characterized in that the angle between one blade and the blade is formed at 74 degrees.

In addition, the control cam is formed as a rotating member whose rotation axis is eccentrically coupled to rotate, and the rotating member is formed to have a guard protrusion that protrudes in the form of a fillet on one length side and serves to push dry ice toward the grinder. You can do this.

Additionally, the air nozzle includes a box-shaped body; A coupler connected to the air compressor on one side of the body; A direct injection nozzle is formed on one side of the body to spray air; The spray nozzle may be formed of a plurality of at least five nozzles spaced at predetermined intervals to peel off dry ice remaining in the grinder.

In addition, the grinder spacing ring may be made of plastic and may be installed to maintain a microspace gap between the bearing and the grinder.

In addition, the stopper control unit includes a rotation axis coupled to the control cam; It may include a rotation control member connected to one side of the rotation shaft and installed to control it, and may be installed to operate in conjunction with an adjustment wheel and a worm reducer installed on the main body base.

The present invention can provide a dry ice particle control device that allows the cleaning power to be adjusted by selectively and freely adjusting the particle size of dry ice.

In addition, the present invention can provide a dry ice particle control device for improving the safety and performance of the device by installing an air injection nozzle in the dry ice particle control device to shake off the remaining dry ice on the rotating grinder after cutting the particles.

In addition, the present invention has the effect of preventing axial freezing due to frost by installing a gap ring between metals in the dry ice particle control device.

In addition, the present invention provides precision manufacturing of the angle of the toothed blade of the grinding blade of the grinder to 74 degrees and 90 degrees, so that dry ice can be pulverized precisely and with sublimation as much as possible suppressed, thereby preventing freezing of surrounding devices. This has the effect of continuously improving device operation performance.

In addition, the present invention can easily adjust the cleaning power by adjusting the particle size of dry ice and spraying it on the cleaning object, thereby preventing surface damage to the cleaning object and efficiently cleaning parts that require high cleaning precision. There is an effect.

1 to 11 show an example of a dry ice particle control device according to the present invention,
1 is an overall illustration showing a spray cleaner having a dry ice particle control device according to the present invention;
Figure 2 is a plan view showing the main portion of the injection site of the main body for injecting dry ice according to the dry ice particle control device according to the present invention;
Figure 3 is an overall illustration showing the dry ice particle control device installed on the main body base according to the present invention;
Figure 4 is an exploded view showing the dry ice particle control device according to the present invention;
Figure 5 is an overall diagram showing the dry ice particle control device according to the present invention;
Figure 6 is a side view of Figure 5;
Figure 7 is a longitudinal cross-sectional view of Figure 6;
Figure 8 is a front view of Figure 5;
Figure 9 is an illustration showing the housing body according to the dry ice particle control device according to the present invention;
Figure 10 is an illustration showing a grinder according to the dry ice particle control device according to the present invention;
Figure 11 is an exemplary diagram showing a control cam according to the dry ice particle control device according to the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, but the present embodiments only serve to complete the disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. It is provided for information purposes only.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. First, when adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

1 to 11 show an example of a dry ice particle control device according to the present invention.

The dry ice injection device of the present invention includes a main body (10); A spray gun nozzle (20) for spraying dry ice installed from the device to a connecting hose; It includes an air compressor 30 and a separate dry ice supply unit (not shown), and can be configured by installing the dry ice particle control device 100 of the present invention inside the main body 10.

First, the air compressor 30 provides compressed air, which is the initial driving force for spraying dry ice. When dry ice begins to be supplied from the dry ice supply unit, the main body 10 and the dry ice particle control device 100 Dry ice ground by grinding while operating can be sprayed onto the cleaning object through the spray nozzle 20 via a connection hose for cleaning.

Here, the main body 10 is provided with an on/off switch (not shown) to control the operation of the air compressor 30.

That is, if you press the on/off switch once, the air compressor 30 continues to operate to continuously spray dry ice in the collection groove in the dry ice particle control device, and if you press the on/off switch again, the air compressor 30 By stopping the operation, operator fatigue can be reduced and convenience of use can be provided.

Referring to Figures 1 and 2, the main body 10 is approximately in the shape of a polygonal box or a circular box, and an inlet 10a through which pellet-shaped dry ice is input is formed on its upper surface.

In addition, an accommodating space for accommodating dry ice is provided inside the main body 10, and the central part of the accommodating space is an exposure hole 10a that exposes the dry ice particle control device 100, which will be described later, while passing the dry ice. This is formed.

Preferably, it is formed in a shape that gradually narrows toward the lower part where the exposure hole 10a is formed. Therefore, the dry ice that falls on the floor goes down the ramp on the floor and is supplied to the dry ice particle control device 100.

Additionally, an outlet may be formed on the lower side of the main body 10 through which dry ice whose particle size has been adjusted by the dry ice particle control device 100 can be discharged to the outside.

And a cover 11 for opening or closing the inlet is hinged on the upper side of the main body 10.

In addition, on the outer surface of the main body 10, there is a dial control RPM control unit 13 that allows the injection amount of dry ice to be adjusted by adjusting the RPM of the drive unit that rotates the grinder, which will be described later, and the pressure of the air compressor 30. A dial control type pressure control unit 14 is provided to control the injection speed of dry ice.

In addition, the outer surface of the main body 10 may be further provided with a display unit 16 that operates in conjunction with the rotation of the control wheel 15 to display the particle size of the dry ice to be ground in numbers. At this time, the display unit 16 includes numbers of 3 to 4 digits (including decimal points).

In addition, the numbers on the display unit 16 can be configured to display the particle size of the dry ice being ground and formed to match the gap between the grinder and the control cam, which changes depending on rotating the control wheel 15 in the forward or reverse direction.

Meanwhile, inside the main body 10, a reducer 17, a dry ice particle control device 100, and a drive motor 18 connected to the control wheel installed on the basic base (S) are connected to each other.

3 to 11, the dry ice particle control device 100 according to the present invention includes a housing body 110; Support members 120 (120') assembled on the left and right sides of the housing body 110 and connected to the shaft and bearing (B); a grinder 130 disposed axially in the inner space of the housing body 110 for grinding and forming dry ice; an adjustment cam 140 disposed opposite the grinder 130 in the inner space of the housing body 110 to adjust the size of the dry ice being ground; an air nozzle 150 installed on the side of the grinder 130 to spray air to eliminate frost caused by grinding; A stopper control unit 160 is axially coupled to the control cam and installed to maintain the minimum gap between the grinder and the control cam; And, it further includes a pair of left and right grinder spacing rings 170 and 170' installed between the grinder 130 and the bearing B to minimize contact between metals.

The housing body 110 includes a body 111 in the shape of a polygonal box; a cam connection groove 113 that is recessed inward from one side of the body 111 to accommodate the adjustment cam 140; A collection groove 115 is opened in the form of a long groove on the inner bottom surface of the body 111 to collect the ground dry ice; It may be configured to include a guide inclined portion 117 that is formed to be inclined between the cam connection groove 113 and the collection groove 115 to guide falling dry ice to the collection groove 115.

In addition, an assembly hole 118 for assembling a plurality of pieces or bolts may be formed on one or a side surface of the housing main body 110.

Meanwhile, on one upper side of the body 111 where the cam connection groove 113 is formed, a backflow prevention plate 119 is further provided to prevent the residue of the dry ice being bolted and ground from flowing back to the top. can do.

The support members 120 and 120' are connected and assembled as a pair on both left and right sides of the housing main body 110, and have a bearing (B), a connecting shaft, or a rotating shaft around the flat body with a certain length and width. A coupling hole 121 and an axial hole 122 that are connected are formed.

In addition, among the support members 120 and 120', one support member 120 has a connection hole 123 formed through a central portion of the bottom of one side and connected to the collection groove 115 of the housing main body 110. It is formed, and the spray nozzle 20 of a dry cleaner capable of controlling dry ice particles, which will be described later, is connected to and installed in this connection hole 123.

The grinder 130 is axially disposed in the inner space of the housing body 110 for grinding and forming dry ice, and includes a cylindrical body 131; A rotation axis 133 coupled to the inside of the body 131; The tooth-shaped grinding blade 135 that continuously forms dry ice on the outer periphery of the body 131 can be configured to be continuously formed at regular intervals.

Here, the grinder 130 can be rotated in place by the power of the motor 18, and grinding blades 135 that continuously grind dry ice along the circumferential peripheral surface are continuously positioned at regular intervals.

Preferably, a hollow is formed in the grinder 130, and a rotating shaft 133 is installed through the hollow. Both sides of the rotating shaft 133 protrude to the outside of the grinder 130.

Meanwhile, the grinder 130 is preferably manufactured so that the angle between one blade 135a and one blade 135b of the grinding blade 135 is 74 degrees or 90 degrees. This is the best angle to respond to the forward direction of the head wind blowing from the air nozzle 150 installed on the side of the grinder, and to maintain the best efficiency angle considering the fine grinding of the dry ice being ground.

The adjustment cam 140 is disposed opposite the grinder 130 in the inner space of the housing body 110 to adjust the size of the dry ice being ground, and includes a rotating member 141 formed in a certain length direction; The rotating member 141 may be formed to include a guard protrusion 143 whose length on one side protrudes in a fillet shape and serves to push the dry ice toward the grinder.

In addition, the adjustment cam 140 can be arranged so that the distance from the grinder 130 can be adjusted on the stopper adjustment unit 160, which will be described later. At this time, the control cam 140 can be installed at a predetermined distance from the grinder 130 to allow dry ice to pass through.

That is, the dry ice that has fallen through the exposure hole 12a is ground by the grinder 130 while supported by the adjustment cam 140, and the particle size is displaced. At this time, the control cam 140 is conveniently formed in a fillet shape so that dry ice can cause surface friction.

In addition, a through hole 141a through which the rotation axis 161 of the stopper adjustment unit 160, which will be described later, is installed is eccentrically formed in the rotating member 141.

The air nozzle 150 is installed on the side of the grinder 130 to spray air to eliminate frost caused by grinding, and includes a box-shaped body 151; A coupler 153 connected to the air compressor on one side of the body 151; A spray nozzle 155 is formed on one side of the body to directly spray air; The injection nozzle 55 is formed of at least five nozzles 155 spaced at predetermined intervals and can be configured to peel off dry ice remaining in the grinder.

Here, the air spray from the air nozzle blows the top of the grinder's screw thread from the front, allowing the remaining material to be peeled off between both screw bones.

The stopper control unit 160 is configured to adjust the gap between the grinder 130 and the control cam 140 so that the particle size of dry ice can be selectively adjusted.

That is, the stopper control unit 160 can adjust the gap by moving the control cam 140 forward or backward with respect to the grinder 130, and adjust the particle size of the dry ice to be determined according to the gap.

For this purpose, the stopper control unit 160 includes a rotation shaft 161 and a rotation control member 162, and is installed to operate in conjunction with a worm reducer 17 connected to the adjustment wheel 15 installed on the main body base. .

In addition, the rotation shaft 161 is installed through the through hole 141a of the adjustment cam 140 as described above, and is disposed eccentrically to the adjustment cam 140. At this time, the rotation shaft 161 is rotated according to the operation of the rotation control member 162, which will be described later, so that the distance between the adjustment cam 140 and the grinder 130 is adjusted.

In addition, the rotation control member 162 is a component that provides power to move the grinder 130, and the adjustment wheel 15 is exposed to the outside of the main body 10 so that the operator can control it.

Preferably, the adjustment wheel 15 may be formed in a circular shape, and may have a plurality of valleys and peaks continuously intersecting along its circumference to prevent fingers from slipping.

In addition, the main body 10 can be rotated in the forward or reverse direction with the adjustment wheel 15 from the outside, which causes the rotation shaft 161 and the adjustment cam 140 to rotate in the rotation direction so that the adjustment cam 140 can be used as a grinder ( 130) can be operated to move closer or further away.

Accordingly, the distance between the grinder 130 and the control cam 140 can be adjusted by rotating the control wheel 15 in the forward or reverse direction, and then the dry ice can be input and molded into the desired particle size.

The grinder spacing ring (170) (170') is installed between the grinder (130) and the bearing (B) to minimize contact between metals. The spacing ring made of plastic creates a fine space between the shaft and the bearing between the metals. You can prevent shaft freezing due to frost by securing and avoiding contact between metals.

Below, the effects of the dry ice particle control device according to the present invention will be described. As follows. The following description follows the above structural description.

First, dry ice is automatically injected into the internal space of the main body 10 from the dry ice supply unit (not shown) where dry ice is stored.

Next, grinding is performed using the grinder 130 and the adjustment cam 140 installed inside the main body 10. At this time, the dry ice can be ground to the particle size by adjusting the stopper control unit 160 according to the setting.

On the other hand, since it is set to be spaced at a distance greater than the particle size of the dry ice, the formed dry ice falls directly into the collection groove 115 without contacting the grinder 130 and the adjustment cam 140 and is then cleaned in the above-described manner. It can also be sprayed on an object to remove the foreign material layer.

In particular, when an impact is applied to the object to be cleaned and a number of grooves smaller than dry ice are formed, a problem may occur in which the dry ice cannot contact the foreign material layer in the grooves and the foreign material layer cannot be removed. However, according to the present invention, the dry ice cannot contact the foreign material layer in the groove. A dry ice cleaner can remove layers of foreign substances by spraying molded dry ice intensively into the grooves of the object to be cleaned.

In other words, when dry ice is sprayed into the foreign material groove of the cleaning object, the dry ice enters the groove of the cleaning object and comes into contact with the foreign material layer on the surface of the groove. If a groove is formed on the cleaning object, the dry ice is not molded. Ice is first put into the main body 10 to remove the layer of foreign matter stuck in the part where the groove is not formed, then the molded dry ice is put into the main body 10 and then sprayed intensively on the groove part of the cleaning object. This allows the entire cleaning object to be completely cleaned.

In addition, when the object to be cleaned has no grooves, the object to be cleaned can be cleaned using only dry ice that has been finely ground and formed by a grinder and an adjustment cam.

Although the present invention has been illustrated and described with reference to preferred embodiments as discussed above, it is not limited to the above-described embodiments and is intended to be used by those skilled in the art without departing from the spirit of the invention. Of course, various modifications and variations are possible within the scope of equivalence of the technical idea of the present invention and the scope of the patent claims described below.

10: main body
20: Spray gun nozzle
30:Air compressor
100: Dry ice particle control device
110: Housing body
120, 120': support member
130: Grinder
140: adjustment cam
150: Air nozzle
160: Stopper control unit
170: Grinder spacing ring

Claims (9)

a housing body; A support member assembled on the left and right sides of the housing body and connected to the shaft and bearings; a grinder axially disposed in an inner space of the housing body for grinding dry ice; an adjustment cam disposed opposite the grinder in the inner space of the housing body to adjust the size of the dry ice being ground; an air nozzle installed on a side of the grinder to spray air to eliminate frost caused by grinding; A stopper control unit axially coupled to the control cam and installed to maintain a minimum gap between the grinder and the control cam; And, a dry ice particle control device further comprising a pair of left and right grinder spacing rings installed between the grinder and the bearing to minimize contact between metals,
The air nozzle is
A box-shaped body;
A coupler connected to the air compressor on one side of the body;
A direct injection nozzle is formed on one side of the body to spray air;
The injection nozzle is formed of a plurality of nozzles of at least five holes formed at predetermined intervals and is configured to peel off dry ice remaining in the grinder.
Dry ice particle control device. delete delete delete delete delete delete delete delete

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