KR101460481B1 - Module Type Automatic Filter Exchanging Apparatus - Google Patents

Abstract

Provided is a module type automatic filter exchange device. The present invention relates to a device for exchanging a filter member provided to the front suction path of a suction fan so as to remove foreign matters included in the suction air with a new one, comprising: a main body case having a grille provided to one surface corresponding to the suction fan so as to pass suction air and provided to the front suction path of the suction fan; a filter part for removing foreign matters included in the suction air and having an unwinding roll supported by one side of the main body case at both ends and wound with the filter member by a predetermined length in the shape of a roll and a winding roll supported by the other side of the main body case at both ends and connected to the front end of the filter member which is released from the unwinding roll and intersecting the front suction path; a driving part for supplying power for driving the winding roll to rotate in the winding direction such that the filter member removing the foreign matters included in the suction air is released from the unwinding roll and wound in the shape of a roll on the winding roll; and a tension applying part having a contact plate provided to the main body case such that one end thereof is rotational and an elastic member for supplying elastic force such that the free end of the contact plate elastically comes in contact with the unwinding roll, thereby applying a predetermined intensity of tension to the filter member at a position corresponding to the position between the unwinding roll and the winding roll.

Description

[0001] MODULE TYPE AUTOMATIC FILTER EXCHANGING APPARATUS [0002]

The present invention relates to an apparatus for automatically replacing a filter, and more particularly, to an apparatus for automatically replacing a filter, a filter disposed in an outside air inflow line of an air conditioner to remove foreign matter contained in the outside air, The present invention relates to a modular automatic filter replacing apparatus which can easily perform an operation of replacing a filter with a new filter and an operation of mounting the filter on an outside air inflow line of an air conditioner.

Generally, industry and office have an air condition system such as a cold air conditioner and a hot air conditioner so that the room temperature can be kept constant at an appropriate temperature.

An air conditioner (hereinafter referred to as " air conditioner ") which is integrally or independently installed to remove contaminants such as fine dusts contained in the air or oil mist and dust generated in industrial facilities , An air conditioner).

Particularly, in the cleaning room installed in the semiconductor manufacturing line, filtering of the air flowing into the cleaning room from the outside through the air conditioner is one of the important process control in order to prevent the process failure due to contaminants.

Accordingly, in a conventional air conditioner, a filter is essentially installed in an inflow line through which the outside air is introduced by a suction fan so as to filter foreign matter such as dust and oil mist contained in the air introduced from the outside and supply the purified air in a clean state do.

The clean air from which the pollutants are removed by the filter is supplied to the inflow side of the air conditioner to supply the air to the room by making it cool or warm air or by adjusting the temperature and humidity in the air conditioner.

On the other hand, the filter provided on the air inlet side of the air conditioner or the air conditioner is significantly accumulated in the fine holes of the filter in the air as time elapses, and the filtering effect of filtering contaminants is remarkably deteriorated.

In addition, since the amount of inflow of air introduced into the air conditioner or the air conditioner can be reduced to reduce the performance and efficiency of the equipment, the field worker must periodically replace the filter with a new one or perform a cleaning operation to remove foreign matter do.

However, since the filter is disposed between the inlet side of the suction fan provided in the air conditioner and the grill cover and is provided inside the air conditioner and is integrally connected with a duct such as a duct for smooth inflow of air, The operation of manually separating the duct or the cover cover must be performed beforehand, and the manual replacement of the filter or cleaning work is very cumbersome and inconvenient.

In addition, there is a problem that waste of manpower is caused due to frequent filter replacement and filter cleaning operation depending on the amount of generated foreign matter, and loss of operation rate of the air conditioner results in deterioration of maintainability and productivity.

(Patent Document 1) KR10-1160619 B1

(Patent Document 2) KR10-0968116 B1

In Patent Documents 1 and 2, the filter is continuously fed from the unwinding roll wound in the form of a roll to the reducing roll side to remove the foreign substances contained in the air in the filter section spreading between the unwinding roll and the reducing roll, Is replaced by a roll filter continuously supplied by a motor driving force.

However, in these Patent Documents 1 and 2, the filter continuously supplied from the unwinding roll to the reducing roll side is bent to the air inflow side due to the external force generated when the forced air flows, Which causes deterioration of the filter efficiency and noise of the apparatus.

In addition, it has been very cumbersome and cumbersome for the separating operation for pulling out the winding roll wound around the waste filter to the outside or for mounting the unwinding roll wound with a new filter.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a filter which can stably maintain tension on a filter section through which forced air flows, And to provide a modular automatic filter replacing apparatus which can minimize the structural change of the existing facilities and facilitate facility management.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In order to achieve the above object, the present invention provides an apparatus for replacing a filter member installed in a front suction duct of a suction fan to remove foreign substances contained in the suction air, the apparatus comprising: A main body case provided in a front suction flow path of the suction fan with a grill through which air passes; Wherein both ends of the main body case are rotatably supported on the other side of the main body case, the main body case is released from the release roll, and the front suction A filter unit for removing impurities contained in the intake air by providing a reducing roll to which the leading end of the filter member intersecting the flow path is connected; A driving unit for providing power to rotate the winding roll in a winding direction so that the filter member from which the foreign substances contained in the intake air are removed is unwound from the unwinding roll to be rolled in a roll shape on the winding roll; And an elastic body provided with a contact plate rotatably provided at one end thereof in the main body case and providing an elastic force such that the free end of the contact plate elastically contacts the unwinding roll, A tension applying unit for applying a predetermined tension to the member; The automatic filter replacement apparatus includes:

Preferably, the unloading roll includes: a first roll shaft having a first shaft support portion formed on a pair of right and left first brackets provided on the main body case and having both ends supported at left and right ends thereof; The filter member of the first paper tube having a predetermined length wound in the form of a roll.

More preferably, the first shaft portion is provided with a bend-like slit groove having an open mouth.

Preferably. The second roll shaft is inserted into the second roll shaft such that the inner hole is difficult to rotate, and the second roll shaft is inserted into the second roll shaft from the release roll And a second branch pipe to which the tip of the filter member is connected so that the unwound filter member is wound in a rolled shape.

More preferably, the second paper tube is provided with a hollow tube having an internal hole of a polygonal cross-sectional shape corresponding to a body of a polygonal cross-section formed in the middle of the length of the second roll axis.

More preferably. The second paper tube has a fitting groove into which the tip end of the filter member unwound from the unwinding roll is fitted.

Preferably, the second shaft portion is provided with a straight slit having an opening, both ends of the second roll shaft are in contact with the free end of a stopper, which is pivotably mounted on a rotary shaft formed on one side of the second bracket, It is separated.

Preferably, the main body case includes a main plate through which the grille is passed, and a pair of left and right first and second brackets assembled on both left and right sides of the main plate and rotatably supported at left and right ends of the winding roll and the releasing roll, And a pair of left and right assembling plates.

More preferably, the pair of right and left assembling plates include assembling protrusions correspondingly coupled to the assembling holes formed on the right and left side edges of the body plate.

Preferably, the driving unit includes a driving motor having a driving pulley connected to a driving pulley connected to a driven pulley provided at one end of the winding roll through a belt member.

Preferably, the driving portion includes first and second guide rolls disposed adjacent to the unwinding roll and rotated in a direction to be engaged with each other, and a third guide roll disposed adjacent to the unwinding roll, The roll shaft is provided with a rotary plate through which a through hole is formed so as to check the amount of unwinding or winding of the filter member. The light sensor senses the light passing through the through hole and transmits the sensed signal to the control unit And a sensor unit.

Preferably, the contact plate facing the elastic body has an elastic body holder having an inclined surface, which is in contact with and fixed to the rear surface of the contact plate, which is disposed at one side of the contact roll and is inclined at a predetermined angle to the release roll, and a vertical surface that contacts the tip of the elastic body.

The present invention as described above has the following effects.

(1) By imparting a tensile force of a certain strength to a filter member, through which the air forcedly flows along the suction path by the suction force of the suction fan, and the foreign matter is removed, the deformation of the filter member due to the external force, Vibration can be prevented, filter efficiency can be enhanced, product failure due to noise generation can be prevented, and product reliability can be enhanced.

(2) The operator can easily and quickly perform the operation of replacing and replacing the winding roll wound in a roll with a new filter, and the operation of separating and replacing the winding roll wound around the waste filter It is possible to reduce work stoppage time, increase work productivity, and reduce the workload of the worker.

(3) By moving the filter section corresponding to the front suction flow path by rotating the sprinkling roll in the winding direction for a predetermined period of time, a new filter section in which the filter surface is always clean can be made to correspond to the front suction flow path, It is possible to increase the filtration efficiency for air.

1 is an installation view showing a modular automatic filter replacing apparatus according to a preferred embodiment of the present invention.
2 is an exploded perspective view showing a modular automatic filter replacing apparatus according to a preferred embodiment of the present invention.
3A and 3B are exploded perspective views illustrating a main body case and a filter unit employed in the modular automatic filter replacing apparatus according to the preferred embodiment of the present invention.
4 is an overall configuration diagram showing a modular automatic filter replacing apparatus according to a preferred embodiment of the present invention.
5 is an exploded perspective view showing a tension applying unit employed in the modular automatic filter replacing apparatus according to the preferred embodiment of the present invention.
FIG. 6 is an exploded perspective view showing a winding roll employed in a modular automatic filter replacing apparatus according to a preferred embodiment of the present invention.
7A to 7C are use state diagrams showing a modular automatic filter replacing apparatus according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

1 to 7C, the modular automatic filter replacing apparatus 100 according to a preferred embodiment of the present invention includes an air conditioner 200 such as an air conditioner that forcibly sucks, filters, and then discharges outside air The operation of replacing the filter member, which is disposed between the suction fan and the grill case 300 so as to move the filter member in which the pollutants are accumulated, by a predetermined time to replace the new filter member in the suction flow path, A filter unit 120, a driving unit 130, and a tension applying unit 140 so as to easily carry out the operation of replacing the spool roll.

The main body case 110 may be formed of a box structure on a substantially rectangular parallelepiped body which is replaceably mounted on the opening 201 provided in the air conditioner 200 such as an air conditioner having the suction fan incorporated therein.

A grill 112 is provided on a bottom surface of the main body case 110 corresponding to the suction fan so that external air forced from the outside by the suction fan can pass therethrough.

Although the grill 112 is illustrated as being formed through a plurality of square holes, the grill 112 may be formed in various shapes such as a circular shape or an elliptical shape.

The opening 201 is formed in a substantially square hole shape in an outer case of the air conditioner 200 to externally expose a suction fan installed inside the air conditioner 200 such as an air conditioner, The grill case mounted on the opening can be assembled and covered on the outside of the main body case disposed in the opening 201.

The main body case 110 includes a main plate 114 having the grill 112 formed therethrough and both ends of a spooling roll to be described later and both ends of a release roll are rotatably supported And a pair of right and left assembling plates 116 and 117 on which the first and second brackets are disposed.

The pair of right and left assembling plates 116 and 117 are provided with assembling protrusions 116a and 117a corresponding to the assembling holes 114a and 114b formed on the right and left sides of the body plate 114, And may be integrally bonded to each other in bonding.

The filter unit 120 includes a loosening pool 121 in which a filter member F for removing foreign substances contained in the intake air forcedly drawn from the outside is wound in a roll in a certain length, And a filter roll (123) in which the filter member (F) from which the foreign substances contained in the intake air are removed is rolled up and stored.

The unloading roll 121 includes a first roll shaft 121a having both ends supported on a first shaft support portion 122a formed on a pair of right and left first brackets 122 provided in the main body case 110, A first branch tube 121b having an inner hole rotatably inserted into a roll shaft and having a predetermined length of a filter member F wound in the form of a roll and having a predetermined length wound thereon, So as to be loosened to the lower side.

At this time, the first shaft portion 122a descends downward by the weight of the first roll shaft 121a of the unloading roll 121 in the horizontal direction, Shaped slit groove bent in a step-like shape.

Accordingly, the left and right ends of the first roll axis are engaged with the bending slit grooves so that the filter member F is smoothly loosened from the upper side to the lower side, Thereby stably supporting the rotation of the one branch tube 121b.

The winding roll 123 includes a second roll shaft 123a having both ends supported on a second shaft support portion 124a formed on a pair of right and left second brackets 124 installed in the main body case 110, The second branch pipe (123) is inserted into the second roll shaft (123a) so that the inner hole can be detached from the first rollers (123a) so as to be detachable, and the filter member (F) unwound from the unwinding roll 123b.

The second branch tube 123b may be a hollow tube having an inner hole of a rectangular cross section and corresponding to a body of a rectangular cross section formed in the middle of the second roll axis 123a. And a fitting groove 123c into which the tip of the filter member F is inserted so as to wind the filter member in a rolled shape when the winding roll 123 is wound up.

Here, the inner hole of the second paper tube is shown to have a rectangular cross-sectional shape in which it is difficult to rotate with respect to the second roll axis so that the filter member can be wound. However, the present invention is not limited to this and the second roll axis 123a In the same plane.

The distal end of the filter member F may be connected to the outer surface of the second branch tube 123b or the outer surface of the second roll shaft 123a by a separate connecting member such as a double- .

The filter member F connected to the fitting groove 123c is connected to the first branch roll 123a and the second branch pipe 123b when the winding roll 123 is rotated in the winding direction And is wound in the form of a scroll on the outer circumferential surface of the second branch tube 123b.

The second shaft support portion 124a of the second bracket 124, which is rotatably supported at both ends of the second roll shaft, is provided with a straight slit whose opening is opened, and a second roll supported by the second shaft support portion Both ends of the shaft are in contact with or spaced from the free end of a stopper 125 which is rotatably assembled to a rotation shaft 124c formed on one side of the second bracket 124 so that the rotation and separation / And can be constrained or released to the second axially extending portion 124a.

The main body case 110 includes a main plate 114 formed to penetrate the grill 112 and a pair of left and right ends of the winding roll and the unwinding roll which are assembled on both left and right sides of the main plate 114, And a pair of left and right assembling plates 116 and 117 on which a pair of left and right brackets 122 and 124 are supported.

The pair of right and left assembling plates 116 and 117 are provided with assembling protrusions 116a and 117a corresponding to the assembling holes 114a and 114b formed on the right and left sides of the body plate 114, And may be integrally bonded to each other in bonding.

Accordingly, since the main body case 110 is provided with the main plate and the assembly plate assembled to both the right and left sides thereof, the width of the filter member F, which is unwound from the unwinding roll and wound on the spool roll, The assembling plates 116 and 117 assembled to both the left and right sides of the main plate 114 may be replaced with other standards or the main plate assembled between the pair of left and right assembling plates 116 and 117 The width of the main body case can be flexibly changed according to the change in the width of the filter member.

The driving unit 130 removes the foreign substances contained in the intake air, and the contaminated filter member F is rolled up in the form of a roll in the winding roll 123, and the new filter member is released from the unwinding roll, And the power for rotationally driving the winding roller 123 in the winding direction by a predetermined amount so as to be positioned corresponding to the grill of the case.

The drive unit 130 includes a drive pulley 133a connected to the drive pulley 133c via a belt member 133b at one end of the pulley 123, And a driving motor 131 that provides power for rotationally driving the motor 123 in one direction that is a winding direction.

At this time, a method of rotating and driving the winding roll for winding the filter member, which is contaminated with the contaminants by the driving motor 131, in the winding direction is performed by a belt member connected between the driving pulley and the driven pulley. However, the present invention is not limited to this, and the driven gear provided at one end of the winding roll 123 and the driving gear that is gear-meshed can be mounted on the driving shaft of the driving motor to rotate the winding roll by a certain amount in one direction.

The amount of unwinding and unloading of the filter member F due to the rotation of the winding roll 123 senses the number of revolutions of the driving motor 131 and generates a control signal based on the number of revolutions of the driving motor 131, 131) connected to the external power supply.

The driving unit 130 is disposed adjacent to the unwinding roll so as to guide the unidirectional advancing of the filter member that is released from the unwinding roll and advances so as to be adjacent to the bottom surface of the main body case on which the grill 112 is formed, First and second guide rolls 134 and 135 to be wound and a third guide roll 136 disposed adjacent to the winding roll.

Left and right ends of the first and second guide rolls 134 and 135 are respectively rotatably disposed on a first auxiliary shaft support portion 122b having a concave shape formed in a first bracket 122 to which both ends of a release roll are supported, The first bracket 122 is assembled so as to be difficult to separate and separate by the plate-like support member 127a fixed by the fastening member.

The right and left ends of the third guide roll 136 are rotatably disposed on a second auxiliary shaft support portion 124b having a concave shape formed on the second bracket 124 supporting both left and right ends of the winding roll, And is assembled so as to be difficult to separate and separate by the other supporting member 127b on the plate fixed to the bracket 124 by the fastening member.

The filter member F is guided by the first guide roll 134 and the second guide roll 135, which are rotated in the direction of interlocking with each other, from the upper part to the lower part and is positioned as close as possible to the grill of the main body case. And is rolled in a rolled form on the winding roll in contact with the third guide roll 136. [

One end of the first guide roll 134 or the second guide roll 135 which is rotated in the direction of interlocking with one end of the winding roll 123 may be provided with a releasing amount of the filter member F, And a sensor unit 138 having a rotation plate 137 formed through the through hole so as to confirm the amount of the air, sensing the light passing through the through hole and sensing the rotation number, and transmitting the detection signal to the control unit.

The sensor unit 138 includes a light emitting sensor for generating light when the power is turned on and a light receiving sensor for receiving light passing through the through hole and recognizing the light. It is preferable that the first bracket 122 is installed close to the guide roll.

The amount of movement of the filter member F released from the unwinding roll 121 and wrapped around the winding roll 123 can be checked in real time by the sensor unit 138 that senses the rotational speed of the rotating plate 137 do.

The filter member F released from the unwinding roll 121 is wound on the winding roll 123 as compared with the amount of rotation of the driving motor 131, The rotation amount of the driving roller is controlled by the control unit for a predetermined time during a predetermined time in consideration of the contamination of the filter member so that the filter member in a clean state can always be positioned in the corresponding filter period will be.

At this time, the operation timing and the rotational driving amount of the driving motor 131 can be controlled by a control signal of a control unit electrically connected to the driving motor 131 and the sensor unit 138, It can be appropriately adjusted depending on the surrounding environment.

The total length of the filter member F wound around the unwinding roll 121 is determined by the amount of reduction of the filter member wound on the winding roll 123 by being loosened from the unwinding roll 121, By comparing the total lengths of the filter members previously entered, it is possible to compare the total length of the filter members beforehand before the filter member is released from the unwinding rolls, It is possible to determine an exchange time and generate an operation signal indicating the exchange time.

At this time, the operator can confirm the replacement timing of the winding roll and the release roll by the warning sound or warning light generated by the operation signal generated in the control unit.

The driving motor 131 is housed in an upper box 118 fixed to the main plate of the main body case 110 so as to be adjacent to the vicinity of the unloading roll 121, The upper portion of the upper box 118 is provided with a drive motor and a control unit that is internally accommodated in the upper portion of the upper box 118. The upper portion of the upper box 118 is connected to the drive motor It is preferable that the lid member 118a is sealed by the lid member 118a.

The main body case 110 collects the oil falling from the sprinkling roll wound around the filter member F, which is disposed immediately below the sprinkling roll and is trapped by polluted substances such as oil mist contained in the suction air forcedly sucked It is possible to prevent the equipment from being contaminated by the oil mist collected together with the contaminants.

The tension applying unit 140 includes a pair of left and right first brackets 122 fixed to the main body case 110 and a contact plate 141 assembled so that both ends thereof are rotatable. And the elastic member 145 provides an elastic force such that the free end of the filter member 141 is elastically contacted with the filter member F rolled up in a roll form on the unwinding roll 121, To the filter member (F) facing the grill of the main body case (110).

The contact plate 141 is formed of a substantially rectangular plate having both left and right ends of a connecting pin 141a rotatably inserted into a turn hole 143 formed in the first bracket 122, 145 may be composed of the main body case or the upper box and the spring member in the form of a coil disposed between the upper and lower surfaces of the contact plate, but may be formed of a rubber member or a sponge member for generating an elastic restoring force upon shrinkage.

One side of the contact plate 141 facing the elastic body 145 is provided with an inclined surface 146a which is in contact with the rear surface of the contact plate disposed at a predetermined angle to the release roll 121 side, And an elastic body holder 146 having a vertical surface 146b contacting the tip.

Accordingly, the elastic restoring force of the elastic body 145 is transmitted to the contact plate 141 in a substantially linear direction, so that the elastic body 145 can be prevented from being deformed so as to maintain the linear shape.

The free end of the contact plate 141 is elastically brought into contact with the filter member F wound around the unwinding roll 121 and is placed between the unwinding roll 121 and the winding roll 123, A tension of a predetermined strength is applied to the filter member F stopped so as to correspond to the grill of the main body case so as to correspond to the suction flow path so that the filter member is stretched between the unwinding roll 121 and the wind- It is possible to prevent vibrations due to the intake air forced through the intake pipe.

That is, when tension of a predetermined strength is applied to the filter member waiting between the unloading roll 121 and the winding roll 123, external air forcedly sucked into the suction fan through the front suction channel flows into the filter member It is possible to prevent the filter member from being bent or twisted to the suction fan side during the process of removing the foreign substances while passing through the filter member. Therefore, external air is discharged to both sides of the curved filter member to lower the filtration efficiency, It is possible to prevent the occurrence of noise caused by the filter member in advance.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110: Body case
112: Grill
114:
116, 117:
118: Upper box
119: Oil collection box
120:
121: Release roll
121a: first roll axis
121b: first branch tube
122: first bracket
123: Gum Rool
125: second bracket
130:
131: drive motor
133b: Belt member
134: first guide roll
135: second guide roll
137: Spindle
138:
140:
141: contact plate
145: elastomer
F: Filter element

Claims (12)

An apparatus for replacing a filter member installed in a front suction passage of a suction fan to remove foreign matter contained in the suction air,
A main body case provided in a front suction duct of the suction fan, the main body case having a grill through which suction air passes on a surface corresponding to the suction fan;
Wherein both ends of the main body case are rotatably supported on the other side of the main body case, the main body case is released from the release roll, and the front suction A filter unit for removing impurities contained in the intake air by providing a reducing roll to which the leading end of the filter member intersecting the flow path is connected;
A driving unit for providing power to rotate the winding roll in a winding direction so that the filter member from which the foreign substances contained in the intake air are removed is unwound from the unwinding roll to be rolled in a roll shape on the winding roll; And
And an elastic body provided with a contact plate provided at one end of the body case so as to be rotatable so as to provide an elastic force such that the free end of the contact plate elastically contacts the unwinding roll, A tension applying unit for applying a tension of a predetermined intensity to the substrate; Lt; / RTI >
The second roll shaft is inserted into the second roll shaft such that the inner hole is difficult to rotate, and the second roll shaft is inserted into the second roll shaft from the release roll And a second paper tube to which the tip of the filter member is connected so that the unwound filter member is wound in a rolled shape. The method according to claim 1,
Wherein the release roll includes a first roll shaft having a first shaft support portion formed on a pair of right and left first brackets provided on the main body case and having opposite ends supported on both left and right sides thereof, And a first core tube wound with a predetermined length in the form of a roll. 3. The method of claim 2,
Wherein the first shank portion is provided with a bend-like slit groove having an open mouth. delete The method according to claim 1,
Wherein the second branch pipe is provided with a hollow pipe having an inner hole of a polygonal cross-sectional shape corresponding to a body of a polygonal cross-section formed in the middle of the length of the second roll axis. The method according to claim 1,
Wherein the second branch pipe has a fitting groove into which a tip end of a filter member released from the unwinding roll is inserted and connected. The method according to claim 1,
The second shaft portion is provided with a linear slit having an opening and both ends of the second roll shaft are in contact with or spaced from the free end of a stopper which is pivotally mounted on a rotary shaft formed on one side of the second bracket Characterized by a modular automatic filter replacement device. The method according to claim 1,
The main body case includes a main plate through which the grill is passed, and a pair of left and right first and second brackets, which are assembled on both left and right sides of the main plate, and in which both left and right ends of the winding roll and the releasing roll are rotatably supported And a pair of right and left assembling plates. 9. The method of claim 8,
Wherein the pair of right and left assembling plates include assembling protrusions correspondingly coupled to the assembling holes formed in the right and left side edges of the main plate. The method according to claim 1,
Wherein the drive unit includes a drive motor having a drive pulley connected to a driven pulley provided at one end of the pulley roll and a drive pulley connected to the driven pulley via a belt member at the end of the drive shaft. The method according to claim 1,
The driving unit includes first and second guide rolls disposed adjacent to the unwinding roll and rotated in a direction to be engaged with each other, and a third guide roll disposed adjacent to the unwinding roll,
The roll shaft of any one of the first and second guide rollers is provided with a rotary plate through which a through hole is formed so as to check the amount of unwinding or winding of the filter member. The rotation speed is sensed by sensing light passing through the through hole And a sensor unit for transmitting the detection signal to the control unit. The method according to claim 1,
Wherein the contact plate facing the elastic body has an elastic body holder having an inclined surface which is in contact with and fixed to the rear surface of the contact plate disposed at one side of the contact roll and inclined at a predetermined angle to the release roll side and a vertical surface contacting the tip of the elastic body, Automatic filter replacement device.

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