KR101723557B1 - A perforation device of clean room concrete floor perforation device - Google Patents

Abstract

The present invention relates to an apparatus for puncturing the concrete floor of a clean room. To enhance the work efficiency by efficiently cooling a drill bit executing the puncturing operation while ensuring the reliability of the clean room by easily collecting dust generated in the puncturing operation, the apparatus includes: a core drill which supplies a coolant into a barrel-shaped drill bit having drill blades formed on the outer circumferential surface of the lower end and rotates the drill bit to puncture the concrete floor; and a dust collection means which stores the core drill and collects waste water mixed with the remaining dust and the coolant being discharged to the outside. The dust collection means includes: a pipe-shaped collection tank which stores the drill bit in a rotatable manner and includes a sealing member for sealing the inside and outside when having the lower end being adhered to the floor surface; and a water collection tank which vacuums the waste water collected in the collection rank to collect the water. The inside of the water collection tank is connected to water collection pipes spatially linked to the inside of the collection tank. A vacuum pump forms the vacuum state by suctioning the air in the water collection tank, thereby vacuuming the waste water through the water collection pipes having a vertical end arranged in the collection tank.

Description

[0001] The present invention relates to a perforation device for a clean room concrete floor perforation device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a perforating apparatus for perforating a concrete floor in a clean room, which is one of semiconductor manufacturing facilities, and more particularly, to secure reliability of a clean room by collecting dust generated during perforating operation. Of course, the present invention relates to a punching apparatus for a clean room concrete floor which can efficiently cool a drill bit for performing a punching work, thereby improving working efficiency.

In general, clean room for production and research such as highly integrated circuit manufacturing room such as semiconductors, gene engineering laboratory, air conditioner hygiene facility industry, etc., is equipped with various kinds of precise special equipment, so foreign fine dust and fine particles are originally cut off Should be removed.

On the other hand, there is a case where the floor, the ceiling and the wall are inevitably drilled for piping work for wiring while replacing and rearranging the special equipment in the clean room.

In such a clean room punching work, the vinyl restraining shield is attached by using the dust-free adhesive tape to surround the perimeter of the perforation point around the height of 2 to 5 meters, and a general industrial vacuum cleaner After preparation, the perforation point is drilled with a perforator such as a drill.

Such residue (dust) generated by the drilling operation is collected by a worker through a collection device such as a vacuum cleaner or the like.

However, the conventional punching apparatuses of the clean room concrete floor have a problem in that the dust generated during the punching work can not be efficiently collected.

Accordingly, various punching devices and punching methods have been proposed for collecting residues such as dust generated during the punching work of the clean room concrete floor.

Korean Patent Application No. 10-2007-0027011 entitled " Clean System for Dust-Breaking at the Time of Drilling Clean Room ", and Dust Blocking Method Using the Same) discloses Korean Patent Application No. 10-2007-0027011. A clean system for blocking dust and pores generated when perforating a perforation hole in a ceiling of a clean room and a wall of a perforation hole, the system comprising: a perforation hole for inserting the perforated hole, A hole sealing member; And a dust-blocking portion that is coupled to the through-hole at one side of the main body and has a dust-discharging hole at its one end and a dust-inlet hole at the other end of the clean- Perforated residues and a dust barrier device.

In addition, Korean Patent Application No. 10-1997-0057051 (entitled: Core Drill / Oct. 1997) discloses a perforating apparatus for performing a drilling operation on a floor surface. As known in the art, a concrete structure A drill head provided on the base and mated with a pinion slidably supported by struts and struts formed in a rack in one side thereof and coupled by a rack, A core bit removably attached to the head, a drill head for rotationally driving the core bit, and an air suction means for sucking air inside the core bit, or a motor provided for air injection means for supplying air to the perforation The core shaft rotatably driven by the motor and removably attaching the core bit is configured to allow vibration in the axial direction of the main shaft To have a configuration in which the damper is provided.

On the other hand, in Korean Patent Application No. 10-2010-0004313 (name: hydraulic core drill having a used water recovery function and drilling of a rock using the same, or hole perforation method for demolishing a concrete structure / 2010.01.18) A pair of guide rods for vertically guiding the rising and lowering of the core tube are installed between a pair of upper and lower support plates interconnected by both side plates as shown in Fig. And a drill bit is installed at a lower portion of the core tube so as to be rotatable by a hydraulic cylinder or a motor. The core drill is installed at a lower portion of the drill bit to reduce noise generated when drilling a hole, And diffusion preventing and collecting means for preventing diffusion of dust and sludge generated during excavation and collecting them; A sedimenting means for forcibly transporting the used water containing dust and sludge collected through the diffusion preventing and collecting means naturally or through a pump to precipitate the sludge contained in the used water and to discharge pure water only to the outside; A core drill is provided.

In addition, as disclosed in Korean Patent Application No. 10-2014-0143418 (name: Core Drilling Apparatus with dust collecting function / 2014.10.22.), There are a wall surface fixing frame fixed to a wall surface, And a core drill coupled to the moving frame and having a core drill for collecting a wall core on the leading drive shaft. The motor driving apparatus according to claim 1, further comprising: A wall surface contact member having a contact surface to be brought into close contact with a wall surface and having a guide hole for guiding a core drill on a surface thereof and having a side detachably fixed to the wall surface fixing frame; A lifting member having one side detachably fixed to the moving frame; And an expansion and contraction tube which is covered with the core drill in a spaced apart form and which is hermetically connected to the wall face contact member at one end and hermetically connected to the up and down member at the other end, .

1, Korean Patent Application No. 10-2007-0027011 2, Korean Patent Application No. 10-1997-0057051 3, Korean Patent Application No. 10-2010-0004313 4, Korean Patent Application No. 10-2014-0143418

However, the conventional perforating apparatuses described above have a problem in that dust generated during the perforating operation can not be collected easily.

In addition, there is a problem that the drill bit performing the drilling operation can not be efficiently cooled.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to provide a clean room which can easily collect dust generated during perforating a concrete floor of a clean room, And to provide a punching apparatus for a clean room concrete floor which is capable of efficiently cooling a drill bit for performing a punching operation and improving work efficiency.

According to another aspect of the present invention, there is provided a drilling apparatus for a clean room concrete floor, comprising: a drill bit having a drill bit formed on an outer peripheral surface of a lower end thereof; And a collecting means for collecting wastewater containing the core drill and the dust residues mixed with the cooling water discharged to the outside through the drill bit, the apparatus comprising: a core drill for drilling the core drill; The collecting means includes a collecting tank having a shape of 'pipe' having the sealing member which is rotatably received in the drill bit and is hermetically sealed when the drill bit is in close contact with the bottom surface at the lower end, And collecting the collected wastewater by vacuum suction; Wherein the inside of the water collection tube is connected to a water collection tube spatially communicated with the inside of the collection tank; A vacuum state is formed through a vacuum pump which sucks air inside the collection tube to form a vacuum state so that the waste water is vacuumed through the collection tube arranged at the end of the collection tank .

A water drain pipe for discharging wastewater collected in the water collection container to the outside is provided at a lower end of the water collection container; The drain pipe is connected to a filtration tank having a filtration net for filtering the sludge therein to purify the waste water, so that the wastewater collected in the collection tank is introduced into the filtration tank.

The water collection tank is configured to pressurize and supply the wastewater collected therein by the air pressure injected through the pneumatic connection pipe connected to the pneumatic pressure generating means for generating air pressure.

The punching apparatus for a clean room concrete floor according to the present invention as described above can easily collect waste water containing dust generated during punching operation of a concrete floor of a clean room through a collecting means, Thereby ensuring the reliability of the clean room.

In addition, by supplying cold cooling water to the interior of the drill bit for performing the drilling operation, cooling efficiency is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a punching apparatus for a clean room concrete floor according to an embodiment of the present invention; FIG.
FIG. 2 is a schematic view showing a control state of a punching apparatus for a clean room concrete floor according to the present embodiment. FIG.
Fig. 3 is a schematic partial view showing a collecting tank applied to a punching apparatus for a clean room concrete floor according to the present embodiment. Fig.
FIG. 4 is a schematic view showing a part of a collection container applied to a punching device for a clean room concrete floor according to the present embodiment. FIG.
FIG. 5 is a partial schematic view showing a filtration tank applied to a punching apparatus for a clean room concrete floor according to the present embodiment. FIG.
Fig. 6 is a schematic view showing another example of a collecting tank applied to a punching apparatus for a clean room concrete floor according to the present embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a punching apparatus for a clean room concrete floor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 5 are views showing a punching apparatus for a clean room concrete floor according to an embodiment of the present invention. The punching apparatus 1 of a clean room concrete floor according to the present embodiment is a one of semiconductor manufacturing facilities In order to ensure the reliability of the clean room, various foreign substances such as dust and the like are injected into the inside of the clean room in order to ensure the reliability of the clean room. So that a clean work is performed so as not to remain.

The punching apparatus 1 according to the present embodiment has a structure in which cooling water is supplied to the inside of a barrel-shaped drill bit 22 formed with a drill bit 21 on the lower end peripheral surface thereof, A core drill 2 and a sheathing means 3 for collecting wastewater containing the core drill 2 and the cooling water discharged from the drill bit 22 through the drill bit 22 and dust residue.

That is, while the drill bit 22 of the core drill 2 is piercing the concrete floor of the clean room, the cooling water supplied to the inside of the drill bit 22 and the dust and pore residuals generated during the drilling operation The mixed wastewater is collected through the collecting means 3 to prevent the dust containing wastewater from remaining in the clean room.

In the punching apparatus 1 according to this embodiment, the core drill 2 described above is preferably constructed in a structure conventionally known in the art. The drill bit 22 includes a bit body 24 having a hollow shape and being vertically hollow and adapted to receive rotation of the drill motor 23 and to receive cooling water therein, And a bit body 25 screwed to the lower end of the body 24 and having a plurality of drill blades 21 at the lower end thereof and having a vertically hollow 'barrel shape'.

That is, the bit body 24 and the bit body 25 are separated and assembled through screw connection, respectively.

Accordingly, even if the drill bit 21 of the bit body 25 is damaged, the replacement operation can be easily performed.

In the perforating apparatus 1 according to the present embodiment as described above, the collecting means 3 includes a drill bit 22 which is rotatably received in the drill bit 22, A collecting tank 32 in the form of a pipe having a member 31 and a collecting tank 33 for collecting the waste water collected in the collecting tank 32 by vacuum suction, .

That is, the work space in which the drilling operation is performed by the drill bit 22 is closed by the collecting tank 32 and the sealing member 31 to the outside, Is prevented from leaking to the outside.

In addition, the wastewater collected in the collecting tank 32 is transferred to the collecting tank 33 so as to stably collect the waste water, thereby collecting the wastewater continuously in the collecting tank 32.

In the above, the inside of the water storage tank 33 and the inside of the collecting tank 32 are connected by the collector pipe 34 and are spatially communicated.

At this time, one end of one end of the water collecting pipe 34 is disposed at a position close to the bottom of the concrete in the collecting tank 32, and the other end is disposed in the water collecting container 33 So that the wastewater collected in the collecting tank 32 is led to the water collection tank 33.

A lid 35 is formed at the upper end of the collecting bath 32 and formed with a penetrating hole through which the drill bit 22 penetrates to prevent the wastewater from splashing to the upper portion of the collecting bath 32 .

The inside of the water storage tank 33 is connected to a vacuum pump 36 which sucks air to form a vacuum state so that the inside of the water storage tank 33 is vacuumed when the vacuum pump 36 is driven.

As a result, when the interior of the water storage tank 33 is in a vacuum state, vacuum suction pressure is formed at the end of the water collection tube 34 located in the water collection tank 32, Collects the collected wastewater into the water collection tube 33 and collects it.

The vacuum tube body 37 connecting the vacuum pump 36 and the water collecting tube 33 is connected to the upper end of the water collecting tube 33 to generate a vacuum suction force from the upper part of the water collecting tube 33 , The air in the wastewater sucked through the water collection pipe 34 is discharged to the outside via the vacuum pump 36 and the wastewater having a heavy weight is freely dropped and collected in the water collection container 33.

The punching apparatus 1 according to this embodiment has the control means 5 for controlling the driving by supplying power to the vacuum pump 36 by controlling the power supply of the power supply unit 4 .

That is, the control of the control means 5 controls the driving of the vacuum pump 36.

The cooling water supplied to the inside of the drill bit 22 can be directly supplied from the outside and the cooling water stored in the separate cooling water supply tank 6 in which the cooling water supplied from the outside is stored can be supplied to the control means 5 And a cooling water supply pump 61 driven by the control of the cooling water supply pump 61. In this case, it is most preferable to apply it according to the user's selection.

In the punching apparatus 1 according to the present embodiment, a drain pipe 38 for discharging the wastewater collected in the water collection container 33 to the outside is provided at the lower end of the water collection container 33 It is preferable that the waste water is discharged to the outside.

The end of the water pipe 38 is connected to a filtration tank 7 provided with a filtering net 71 for filtering the sludge therein to purify the wastewater therein so that the wastewater collected in the water collecting pipe 33 And is most preferably introduced into the filtration tank 7.

In this case, the wastewater is subjected to a water treatment and drained to the outside to prevent environmental pollution. In a state where the water is purified by the recovery pipe 72 connecting the filtration tank 7 and the cooling water supply tank 6 It can be re-supplied to the drill bit 22 and recycled, and it is most preferable to apply it according to the user's selection.

In the punching apparatus 1 according to the present embodiment as described above, the water collection tank 33 is connected to the air pressure injected through the pneumatic connection pipe 81 connected to the pneumatic pressure generating means 8, It is preferable that the wastewater collected therein is supplied to the filtration tank 7 by being pressurized.

That is, the pneumatic pressure is formed in the water collection tank 33 through the pneumatic pressure generating means 8, so that the wastewater collected in the water collection tank 33 is supplied to the filtration tank 7, And the wastewater filtered through the filter net 71 is guided to the cooling water supply tank 6 through the pressure generated at this time to receive the pressure to be recovered.

The punching apparatus 1 according to the present embodiment has a vacuum pump 91 for opening and closing the inner space of the vacuum tube body 37 through the control of the control means 5, An air pressure valve 92 for opening and closing the internal space of the pneumatic connection pipe 81 through the control of the control means 5 and a control means for controlling the opening / closing of the internal space of the water collecting pipe 34 And has a collecting valve 93.

That is, when vacuum pressure is formed at the end of the collector pipe 33 and the collector pipe 34 through the vacuum pump 36, the pneumatic valve 92 is driven to connect the pneumatic connection pipe 81 So that outside air can be prevented from flowing into the water collection tank 33 through the pneumatic connection pipe 81 to stably maintain the vacuum efficiency.

When the pneumatic pressure generating means 8 is driven to supply the wastewater collected in the water collection tank 33 to the filtration tank 7, the vacuum pressure valve 91 and the collection valve 93 So that the air pressure generated by the pneumatic pressure generating means 8 is supplied to the vacuum tube body 37 and the collector pipe 34 through the vacuum tube body 37 and the collector pipe 34, Thereby preventing leakage to the outside.

The water level sensor 94 is provided at a position lower than the water collecting pipe 34 to transmit the level data sensed by the control means 5 in the watercup tank 33, It is preferable to detect the water level of the collection container 33 in real time.

That is, when the water level of the water collection container 33 detected through the water level sensor 94 is equal to or higher than the connection position of the collector pipe 34, The driving of the vacuum pump 36 is stopped and the pneumatic pressure generating means 8 is driven to discharge the wastewater collected in the water collection tank 33 to the filtration tank 7, Is most desirable.

Accordingly, the wastewater is continuously collected in the collection container 33.

Hereinafter, the operation and effect of the punching apparatus 1 according to the present embodiment will be described in detail.

When drilling to form perforations in the clean room concrete floor through the perforating apparatus 1 according to the present embodiment, first, the drill bit 22 is disposed at a position to be drilled, (32) is arranged so as to receive the drill bit (22)

At this time, the upper end of the collecting tank 32 is closed through the lid 35, and the collecting tank 32 is connected to the collecting tank 33 through the collecting pipe 34.

The control means 5 is controlled to drive the drill motor 23 in a state where the drill bit 22, the collecting tank 32 and the water collecting container 33 are disposed, By rotating the drill bit 22, the concrete floor is drilled.

At this time, the cooling water stored in the cooling water supply tank 6 is supplied to the interior of the drill bit 22 through the cooling water supply pump 61 controlled and driven by the control means 5, (22) and, at the same time, a pore residue such as dust generated during the piercing operation is mixed with the cooling water to be contained in the wastewater.

While the drilling operation is progressing by the rotation of the drill bit 22 as described above, the vacuum pump 36 is driven by the control of the control means 5, Vacuum suction pressure is formed at the end of the water pipe 34 so that the wastewater collected in the collecting tank 32 is collected in the water collection tank 33.

When excess water is collected in the water collection tank 33 and the water level sensor 94 detects the water level, the control unit 5 calculates data based on the data detected by the control unit 5, 36 and drives the pneumatic pressure generating means 8 to recover the wastewater collected in the water collection tank 33 to the cooling water supply tank 6 via the filtration tank 7.

At this time, the wastewater is purified through the filter net 71 while passing through the filtration tank 7.

In this manner, the driving of the pneumatic pressure generating means 8 is performed for a predetermined time through the control means 5, and when the discharge of the wastewater collected in the water storage 33 is completed, the control means 5 The driving of the pneumatic generating means 8 is stopped through the set data and the driving of the vacuum pump 36 is resumed so that the wastewater collected in the collecting tank 32 is continuously collected in the collecting container 33 , The drilling operation may be performed.

FIG. 6 is a view showing another example of a collecting tank applied to a punching apparatus for a clean room concrete floor according to the present embodiment. The sealing member 31 of the punching apparatus 1 according to the present embodiment, A sealing ring 311 fixed to the lower end of the tank 32 and closely contacting the bottom surface of the sealing ring 311 and extending outwardly from the outer surface of the sealing ring 311 and being controlled by the control means 5, And a sealing tube 312 which is filled with heavy water supplied and recovered through a heavy water supply unit 95 for supplying heavy water made of a fluid having the same or higher specific gravity so as to be in close contact with the bottom surface.

That is, the sealing between the collecting tank 32 and the bottom surface is formed in two stages through the sealing ring 311 and the sealing tube 312, so that the leakage of the waste water collected in the collecting tank 32 can be further enhanced So that it can be stably prevented.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: perforation device 2: core drill
21: Drill bit 22: Drill bit
23: Drill motor 24: Bit body
25: bit body 3: collection means
31: sealing member 311: sealing ring
312: sealed tube 32: collecting tank
33: House Cans 34: House Cans
35: cover 36: vacuum pump
37: vacuum tube body 38: drain pipe
4: power supply unit 5: control means
6: Cooling water supply tank 61: Cooling water supply pump
7: Filtration tank 71:
72: return pipe 8: pneumatic generating means
81: Pneumatic connector 91: Vacuum pressure valve
92: air pressure valve 93: collection valve
94: water level sensor 95: heavy water supply means

Claims (3)

A core drill 2 for supplying cooling water to the inside of a 'barrel-shaped' drill bit 22 formed with a drill bit 21 on the lower outer circumferential surface and rotating the same to drill the bottom of the concrete, And a collecting means (3) for collecting wastewater containing a mixture of cooling water discharged from the drill bit (22) to the outside and dust residues, the apparatus comprising: a clean room concrete bottom punching apparatus (1)
The collecting means (3)
A collecting tank 32 having a pipe shape in which the drill bit 22 is rotatably received and a sealing member 31 for sealing the inside and outside of the drill bit 22 when the drill bit 22 is in close contact with the bottom surface, And a collecting container (33) for collecting the collected wastewater into the collecting tank (32) by vacuum sucking;
The inside of the water storage tank 33 is filled with a water-
A vacuum pump 36 connected to the water collecting pipe 34 spatially communicated with the inside of the collecting tank 32 and sucking air inside the water collecting tank 33 to form a vacuum state, So that the waste water is sucked through the collector pipe (34) whose end is disposed inside the collecting tank (32);
At the lower end of the water container 33,
A drain pipe (38) for discharging the wastewater collected in the water storage tank (33) to the outside;
The above-mentioned water pipe (38)
And is connected to a filtration tank (7) provided with a filtration net (71) for treating wastewater by filtering the sludge therein so that wastewater collected in the collection tank (33) is introduced into the filtration tank (7);
The water collecting container (33)
Pressurized and supplied to the filtration tank (7) the wastewater collected therein by the air pressure injected through the pneumatic connection pipe (81) connected to the pneumatic pressure generating means (8) for generating air pressure;
And control means (5) for controlling the driving by supplying power to the vacuum pump (36) by controlling the power supply unit (4) to supply the power to the vacuum pump (36);
A vacuum pressure valve 91 for opening and closing the internal space of the vacuum pipe body 37 connected to the vacuum pump 36 through the control of the control means 5 and a control unit An air pressure valve 92 for opening and closing the internal space of the connection pipe 81 and a collecting valve 93 for opening and closing the internal space of the collector pipe 34 through the control of the control means 5 ;
At a position lower than the water collection pipe 34 in the water collection tube 33,
A water level sensor 94 for transmitting the level data sensed by the control means 5 is provided to detect the water level of the watercontainer 33 in real time;
The sealing member (31)
A sealing ring (311) fixed to the bottom of the collecting tank (32) and closely contacting the bottom surface; Through a heavy water supply means 95 which is extended outward from the outer surface of the sealing ring 311 and which is controlled by the control means 5 so as to supply heavy water made of a fluid having a specific gravity equal to or higher than that of water And a sealing tube (312) which is filled with heavy water to be supplied and recovered and is brought into close contact with the bottom surface. delete delete

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