KR102427485B1 - Sand blaster - Google Patents

Abstract

The present invention is a base having a long hole through and up and down through the front and back; A pair of LM guides installed up and down on the inner wall of the base with the long hole interposed therebetween, a pair of LM blocks coupled to each LM guide, and one end coupled to each LM block to interconnect each LM block a lifting unit including a holder whose other end is exposed to the outside through the long hole, and a driving means installed on the base to raise and lower the holder; a nozzle unit coupled to the other end of the holder of the lifting unit for sandblasting the workpiece; a cover unit interposed between the outer wall of the base and the nozzle unit to cover the long hole of the base and having a corresponding long hole in front of which the other end of the holder is disposed while corresponding to the long hole; and a sealing unit for blocking an area where the other end of the holder is not disposed in the corresponding long hole when the nozzle unit is lifted by the lifting unit; That is, as the metal plate is attached along the corresponding long hole by the magnetism of the magnet, it is possible to immediately block the line area that is opened when the spray nozzle goes up and down in the corresponding long hole, so that the inflow of sand powder and spray water can be effectively blocked. It relates to an enclosed sandblaster.

Description

Nozzle Drive Line Sealed Sand Blaster {SAND BLASTER}

The present invention relates to a sand blaster, and in particular, sand powder and water sprayed during sand blasting, as well as foreign substances removed from a workpiece, from flowing into a line between a spray nozzle and an elevating driving unit for vertical driving thereof. It is a technology related to a closed-type sandblaster with a nozzle drive line.

In general, a sand blaster uses a high-speed jet of sand powder made of natural silica sand, alumina or silicon carbide powder, glass beads, fine steel balls, etc. with a fluid such as air or water to smooth the workpiece, It can be used in various places such as removing contaminants from the surface before painting of steel structures, engraving patterns by finely processing the surface of glass widely used for interior and exterior decoration of masonry or buildings, or removing rust from paint on bridges and ships. device used.

In particular, when the spray nozzle for spraying the sand powder included with air or water moves up and down, the sprayed water or sand powder as well as foreign substances separated from the workpiece may flow along the lift drive line, Due to this, there is a problem that not only acts as an interference factor in driving the nozzle, but also causes contamination and corrosion of parts.

As a technology to block or prevent various foreign substances from flowing into the nozzle drive line,

Korean Patent Registration No. 10-1899461 (Registered on September 11, 2018, hereinafter referred to as 'Document 1') "Sandblaster for wood equipped with a dust removal device" is presented,

Document 1 discloses a sand storage unit and a processing chamber forming a dust collecting passage, gloves installed inside the processing chamber and worn by the operator, and sand as a workpiece movably installed inside the processing chamber and accommodated in the processing chamber. and a sand gun for spraying sand in the storage unit, and a dust collecting unit communicating through the dust collecting passage to separate and recovering sand and wood powder through the negative pressure of an induction fan, wherein the dust collecting unit is connected to the processing chamber through the dust collecting passage a housing in communication with and installed at the rear of the processing chamber; an induction fan connected to the housing to guide sand, wood powder, and air generated in the processing chamber into the housing; a filter member disposed inside the housing to correspond to the induction fan and filtering wood powder; an upper cap coupled and installed on the upper part of the filter member to connect the filter member to the upper plate of the housing through an elastic member; a filter cartridge comprising a lower cap coupled to a lower portion of the member, and an expansion and contraction tube connected and installed to seal a space between the upper plate and the upper cap of the housing; A driving motor coupled to one side of the housing, a bearing coupled to one side of the housing, a rotation shaft rotating inside the housing according to the driving of the driving motor, and a bearing coupled to the inside of the housing through a support in the vertical direction An operating shaft disposed as a bevel gear having first and second gears coupled to the rotation shaft and the operating shaft to mesh with each other, an interlocking disc coupled to the lower end of the operating shaft and interlocking, and one side of the interlocking disc Exhaust means consisting of a vibration transmission bar coupled to the eccentric and the other side is coupled to the filter cartridge to apply vibration to the filter cartridge according to the driving of the driving motor; a falling member disposed on the inner front side of the housing to drop sand guided to the housing through the dust collecting passage through a collision action; a wire mesh mesh disposed vertically inside the housing to separate the housing into a first housing in which a filter cartridge is installed and a second housing in which a drop member is installed to separate sand and wood powder; A sand recovery part connected to the lower side of the first housing partitioned by the wire mesh mesh to recover the sand falling by collision with the falling member and the wire mesh mesh to the sand storage part of the processing chamber; The sand and wood powder guided to the dust collecting part collide with the falling member, so that the heavy sand can be dropped, and at the same time, the light wood powder can be suspended so that the sand and the wood powder can be easily separated, and the filter The cartridge is not only connected to the upper plate of the housing through an elastic member, but is also linked according to the driving of the driving motor to apply vibration to the filter cartridge through a vibration exhaust means that applies vibration to the filter cartridge, so that the wood powder accumulated in the filter cartridge Wood equipped with a dust removal device that can easily shake off the dust and prevent the induction of wood powder by the induction fan from being lowered due to the expansion tube sealing the space between the upper plate of the housing and the upper cap of the filter cartridge. This is a skill related to the Dragon Sandblaster.

Document 1. Korean Patent Registration No. 10-1899461 (Registered on September 11, 2018)

The present invention is to block the inflow of various foreign substances into the gap line between the spray nozzle and the lift driving unit for vertical driving thereof, but the gap line opened by the movement of the spray nozzle is a metal plate attached by a magnet and its magnetism The purpose is to provide a closed-type sandblaster with a nozzle driven line that can be shut off immediately using a

Furthermore, the present invention provides a separate space for the upper and lower inlet sides of the holder while inclining the upper and lower inlet sides inward so as to minimize the space between the metal plate inserted into and out of the holder and the corresponding long space that is opened while guiding the vertical movement of the lifting driving unit. An object of the present invention is to provide a closed type sand blaster with a nozzle driving line further provided with a magnet.

In order to solve the above problems, the nozzle driving line sealed sand blaster according to the present invention,

a base having a long hole through and up and down through the front and back;

A pair of LM guides installed up and down on the inner wall of the base with the long hole interposed therebetween, a pair of LM blocks coupled to each LM guide, and one end coupled to each LM block to interconnect each LM block a lifting unit including a holder whose other end is exposed to the outside through the long hole, and a driving means installed on the base to raise and lower the holder;

a nozzle unit coupled to the other end of the holder of the lifting unit for sandblasting the workpiece;

a cover unit interposed between the outer wall of the base and the nozzle unit to cover the long hole of the base and having a corresponding long hole in front of which the other end of the holder is disposed while corresponding to the long hole; and

a sealing unit for blocking an area where the other end of the holder is not disposed in the corresponding long hole when the nozzle unit is lifted by the lifting unit;

characterized in that it consists of

Nozzle drive line sealed sand blaster according to the present invention,

As the metal plate is attached by the magnetism of the magnet along the gap line between the spray nozzle and its elevating driving unit, it is possible to immediately block the line area that is opened when the spray nozzle goes up and down among the gap lines, so that the inflow of sand powder and spray water can be efficiently It has the greatest effect on blocking.

1 is a side configuration view showing a nozzle drive line sealed sand blaster according to the present invention;
Figure 2 is an enlarged partial configuration view of the main part of Figure 1;
3 is an enlarged configuration diagram of "A" in FIG. 2;
4 is a plan view showing a nozzle drive line sealed sand blaster according to the present invention;
5 is a three-dimensional configuration diagram showing the cover of the cover unit;
6 is a three-dimensional configuration diagram showing a part of the base, the cover unit and the sealing unit;
7 is a front view showing a part of the base, the cover unit and the sealing unit;
8 is a configuration diagram showing the vertical lifting operation of the holder and the nozzle unit mounted thereon by the lifting unit, and the attachment state of the metal plate accordingly;
9 is an enlarged partial configuration view of the main part for showing the scrubber.

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

Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in this specification is only the most preferred embodiment of the present invention and does not represent all of the technical idea of the present invention, so various equivalents that can replace them at the time of the present application It should be understood that there may be water and variations.

The direction is specified by referring to the base side as the rear or rear, and the cover unit as the front or front, based on FIG. The direction of the pulley side is specified as lower or lower.

1 to 9, the nozzle drive line sealed sand blaster according to the present invention,

It largely consists of a base 10 , a lifting unit 20 , a nozzle unit 30 , a cover unit 40 , and a sealing unit 50 .

Looking at each configuration,

The base 10 is

As shown in Figures 1 and 2,

It penetrates back and forth and consists of an enclosure structure having a long hole 11 that is long up and down.

The base 10 is installed in the form of being erected on one side of the chamber providing a space for the object to be processed into and out and for sandblasting the object by the nozzle unit 30 .

Although not shown in the drawings, the chamber is divided into a space for carrying in and out of the workpiece, a space for sand blasting, and a space for finally cleaning the workpiece after sand blasting has been completed. position is changed as it rotates. In addition, a separate rotation driving means for rotating the workpiece may be provided according to the shape of the workpiece, and an opening/closing door capable of visually checking the inside may be provided in each space.

The lifting unit 20 is

As shown in Figures 1, 2 and 4,

A pair of LM guides 21 installed vertically with the long hole 11 therebetween in the inner wall of the base 10;

A pair of LM blocks 22 coupled to each LM guide 21,

A holder 23 having one end coupled to each LM block 22 to interconnect each LM block 22 and the other end exposed to the outside through the long hole 11, and

A driving means (24) installed on the base (10) to elevate the holder (23) up and down

is made including

At this time, each LM guide 21 is fixedly installed on the inner wall of the base 10 by a bolt or the like, and each LM guide 21 and each LM block 22 are male and female coupled to each other. According to (21), each of the LM blocks 22 can be stably moved up and down without lateral separation.

In addition, each LM block 22 is fixedly coupled to one end of the holder 23 by a bolt or the like. As a result, when the respective LM blocks 22 are lifted along the respective LM guides 21, the holder 23 also lifts and lowers together.

And as shown in FIG. 1 , the driving means 24 is installed on the upper portion of the base 10 and includes a driving motor 241 having a driving shaft, and a driving pulley 242 axially coupled to the driving shaft of the driving motor 241 . ), a driven pulley 243 rotatably installed on the inner bottom side of the base 10, and the driving pulley 242 and the driven pulley 243 are interconnected and one end of the holder 23 is fixed It consists of an endless-type belt 244 that is coupled.

At this time, a separate fixing member is provided at one end of the holder 23, a belt 244 is placed between one end of the holder 23 and the fixing member, and as they are mutually coupled by a bolt, the holder ( 23) can be fixedly coupled.

As a result, when the driving pulley 242 is rotated by the driving of the driving motor 241, the driven pulley 243 receiving power by the belt 244 rotates together, so that the holder 23 is lifted up and down. do the action.

In addition, the driving means 24 having the above configuration is an example, and various modifications and changes will be possible within a range that satisfies the condition for lifting the holder 23 up and down.

The nozzle unit 30 is

As shown in Figures 1 and 4,

It is coupled to the other end of the holder 23 of the lifting unit 20 for sandblasting the workpiece,

A plurality of relay members 31 mounted on the other end of the holder 23, and

A plurality of injection nozzles (32) mounted on each of the relay member (31)

is made including

At this time, each of the relay members 31 can be implemented to be able to adjust the angle of the spray nozzles 32 mounted thereon in front and rear and left and right, and each of the spray nozzles 32 is arranged in two vertical rows and the size of the workpiece. Batch quantity may be changed in consideration of quantity, etc. For example, in a state in which four injection nozzles 32 are arranged in a first row and two injection nozzles 32 are arranged in a second row, each of the injection nozzles 32 in the first and second rows is inclined in the direction facing each other. It can be implemented for intensive sandblasting.

In addition, each of the injection nozzles 32 has a connection hose connected to each so that a mixture of sand powder and water can be sprayed together, and a separate valve is provided for each connection hose, and the valve can be opened and closed electronically. have.

As described above, when the workpiece is moved to the space in which the nozzle unit 30 is provided while rotating in a turntable manner in a state disposed in one space in a chamber divided into several spaces, each of the injection nozzles 32 Sandblasted by

The cover unit 40 is

As shown in Figures 1, 2, 4, 5 to 7,

It is interposed between the outer wall of the base 10 and the nozzle unit 30 to cover the long hole 11 of the base 10 and corresponds to the long hole 11 in front of the holder 23 It consists of a housing structure having a corresponding long hole 41 in which the other end is disposed.

In this case, a separate sealing packing may be provided along an end of the cover unit 40 that comes into contact with the outer wall of the base 10 .

The sealing unit 50 is

As shown in Figures 2 to 4, Figures 6 to 7,

This is to block an area where the other end of the holder 23 is not disposed in the corresponding long hole 41 when the nozzle unit 30 is lifted by the lifting unit 20,

Distribution hole 51 penetrating up and down in the other end of the holder 23,

A plurality of main magnets 52 arranged at regular intervals up and down along both sides of the corresponding long hole 41 on the inner wall of the cover unit 40, and

In a state where the upper end is fixed to the upper side of the corresponding long hole 41 of the cover unit 40, the other end passes through the distribution hole 51 and is fixed to the lower side of the corresponding long hole 41 of the cover unit 40, and the main The metal plate 53 which is in close contact with the corresponding long hole 41 side by the magnetism of the magnet 52 .

is made including

At this time, as shown in FIG. 2, the distribution hole 51 has a top slope 511 of a spatial structure that gradually moves away from the corresponding long hole 41 side from the upper part to the lower side, and the corresponding long hole 41 from the lower part toward the upper part. It consists of a bottom slope 512 with a spatial structure gradually moving away from the side, and a middle guide 513 with a vertical spatial structure that interconnects the top and bottom slopes 511 and 512. take shape

Since the top and bottom slopes 511 and 512 are inclined at a certain angle, they guide the entry or exit of the metal plate 53 more easily, and in particular, the corresponding long hole 41 of the cover unit 40. It helps to allow the metal plate 53 to cover and block more areas while being more adjacent to the side.

In addition, as shown in FIG. 2 , the metal plate 53 is disposed in an area in contact with the inner surface of the metal plate 53 in the top and bottom slopes 511 and 512 of the distribution hole 51 , and the metal plate 53 is attached by magnetism. A sub-magnet 54 is provided.

Each of the main magnets 52 allows the metal plate 53 to be in close contact with the corresponding long hole 41 side by magnetism, and the sub-magnets 54 also make the metal plate 53 by magnetism. In the top and bottom slopes (511, 512) to be in close contact with their inner side.

And, as shown in FIG. 2, the top and bottom slopes 511 and 512 of the distribution hole 51 are provided with a step block 55 made of synthetic resin that comes into contact with the outer surface of the metal plate 53 at each inlet side. Since the step block 55 is coupled to the holder 23 by a bolt, etc., it can be easily replaced and repaired, and in particular, the step block 55 has excellent heat resistance and wear resistance, so that the metal plate in the distribution hole 51 is It helps to minimize noise as well as fatigue caused by frequent movement of (53).

In addition, as shown in FIG. 2 , the holder 23 has a structure of two powders divided back and forth, and the two powders are mutually assembled and disassembled by bolts, etc., and a part of space is formed in the area facing each other. As each powder is assembled in the , some spaces form one space, and the top and bottom slopes 511 and 512 and the middle guide 513 are completed.

Accordingly, when the holder 23 is raised and lowered, in the corresponding long hole 41 , in addition to the area where the holder 23 is disposed and blocked, that is, the area opened as the holder 23 is not disposed is the metal plate 53 . ) is blocked by At this time, since the portion adjacent to the top and bottom slopes 511 and 512 of the metal plate 53 floats from the corresponding long hole 41, various foreign substances may be introduced into this gap. In order to prevent this, a separate cover ( 42) is provided,

1, 2 and 5, the cover 42 is

The inside of the cover unit 40 is connected to the upper and lower surfaces of the other end of the holder 23, and the long hole 11 of the base 10 and the cover unit 40 correspond to each other while unfolding or folding when the holder 23 is lifted. It consists of a bellows-type structure that blocks the space between the long holes 41. That is, it is long vertically and wrinkled along the longitudinal direction, and when viewed from the top, it forms an approximately ┌┐ shape.

In addition, the upper end of the cover 42 disposed on the upper side with respect to the holder 23 is fixed to the inner upper end of the cover unit 40, and the lower end is fixed to the upper surface of the other end of the holder 23, and the holder ( 23), the lower end of the cover 42 disposed on the lower side is fixed to the inner lower end of the cover unit 40 and the upper end is fixed to the other end lower surface of the holder 23 .

Accordingly, when the holder 23 is raised, the cover 42 on the upper side of the holder 23 is folded, and the cover 42 on the lower side of the holder 23 is unfolded while the long hole 11 of the base 10 and The space between the corresponding long holes 41 of the cover unit 40 is blocked.

On the other hand, the nozzle drive line sealed sand blaster according to the present invention further comprises a position sensor 60,

The position sensor 60 is

As shown in Figure 1,

It is installed in a position corresponding to the base 10 so that it can be stopped at a preset position when the holder 23 is raised in the base 10, and a preset position when the holder 23 is lowered in the base 10 It is installed at a corresponding position so that it can be stopped in the .

As a result, when the holder 23 is sensed by the position sensor 60 , the sensed value is transmitted to a separate controller, and the controller controls the operation of the driving motor 241 according to the sensed value.

On the other hand, the nozzle drive line sealed sand blaster according to the present invention further includes a scrubber 70,

The scrubber 70 is

As shown in Figure 9,

A pair of supports 71 connected to each of the upper and lower ends of the powder located in the front of the two powders at the other end of the holder 23, and

A pair of brushes 72 fixed to each of the supports 71 and having an end contacting the outer surface, that is, the front surface of the metal plate 53 .

is made including

As a result, various foreign substances adhering to the outer surface of the metal plate 53 are removed by the brush 72 whenever the metal plate 53 passes through the distribution hole 51 , thereby entering the distribution hole 51 . It is possible to prevent the inflow of foreign substances as much as possible, and through this, it helps to allow the metal plate 53 to smoothly pass through the distribution hole 51 .

In the above description of the present invention, with reference to the accompanying drawings, the "nozzle driving line sealed sand blaster" having a specific shape and structure has been mainly described, but the present invention is capable of various modifications and changes by those skilled in the art, and such modifications and changes should be construed as belonging to the protection scope of the present invention.

10: base
11: long hole
20: elevating unit
21 : LM Guide
22: LM Block
23 : holder
24: driving means
241: drive motor
242: drive pulley
243: driven pulley
244: belt
30: nozzle unit
31: relay member
32: spray nozzle
40: cover unit
41: Correspondence Long Worker
42 : cover
50: sealing unit
51: distribution hall
511: top slope
512: bottom slope
513: middle guide
52: main magnet
53: metal plate
54: sub magnet
55: step block
60: position sensor
70: scrubber
71: support
72 : brush

Claims (6)

a base 10 having a long hole 11 that is penetrated back and forth and is long up and down;
A pair of LM guides 21 installed up and down in the inner wall of the base 10 with the long hole 11 interposed therebetween, a pair of LM blocks 22 coupled to each of the LM guides 21, one end The holder 23 is coupled to each LM block 22 so as to interconnect each of the LM blocks 22 and the other end is exposed to the outside through the long hole 11, and is installed on the base 10. an elevating unit 20 including a driving means 24 for elevating the holder 23 up and down;
a nozzle unit 30 coupled to the other end of the holder 23 of the lifting unit 20 for sandblasting a workpiece;
It is interposed between the outer wall of the base 10 and the nozzle unit 30 to cover the long hole 11 of the base 10 and corresponds to the long hole 11 in front of the holder 23 Cover unit 40 having a corresponding long hole 41 on which the other end is disposed; and
a sealing unit 50 for blocking an area where the other end of the holder 23 is not disposed in the corresponding long hole 41 when the nozzle unit 30 is lifted by the lifting unit 20;
made up of; The sealing unit 50,
A distribution hole 51 penetrating up and down in the other end of the holder 23;
A plurality of main magnets 52 arranged at regular intervals up and down along both sides of the corresponding long hole 41 on the inner wall of the cover unit 40,
In a state where the upper end is fixed to the upper side of the corresponding long hole 41 of the cover unit 40, the other end passes through the distribution hole 51 and is fixed to the lower side of the corresponding long hole 41 of the cover unit 40, and the main a metal plate 53 that is in close contact with the corresponding long hole 41 by the magnetism of the magnet 52;
Nozzle drive line sealed sand blaster, characterized in that consisting of.
delete The method of claim 1,
The distribution hole 51 has a top slope 511 having a spatial structure that gradually moves away from the corresponding long hole 41 side from the upper part to the lower side, and a spatial structure that gradually moves away from the corresponding long hole 41 side from the lower part to the upper part. A nozzle driving line sealed sand blaster comprising a bottom slope (512) and a middle guide (513) having a vertical space structure interconnecting the top and bottom slopes (511, 512).
4. The method of claim 3,
In the top and bottom slopes 511 and 512 of the distribution hole 51, the sub-magnet 54 is disposed in an area in contact with the inner surface of the metal plate 53 and to which the metal plate 53 is attached by magnetism. Nozzle drive line sealed sand blaster, characterized in that it is provided.
5. The method of claim 4,
Nozzle driving line sealed type, characterized in that the top and bottom slopes 511 and 512 of the distribution hole 51 are provided with a step block 55 made of synthetic resin that comes into contact with the outer surface of the metal plate 53 at each inlet side. sandblaster.
delete

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