KR200349304Y1 - An apparatus for the support and handling of blast nozzles - Google Patents

Abstract

The present invention uses a compressed air to spray sand or shot balls on the surface of the workpiece to remove the casting sand, rust, etc. attached to the surface of the workpiece. By supporting a plurality of injection nozzles to be fixed, the front and rear inclination can be adjusted, and can move in the desired direction, greatly improving the efficiency of the blast work, and also the blast to make the operator more convenient to work The present invention relates to a spray nozzle support and an operating device for work.

According to the present invention, the present invention is a cart comprising a front wheel rotated by a drive motor, a rear wheel and a control unit connected to the steering wheel; A lifting unit supported by a fixed frame having a predetermined height fixed to an upper portion of the cart and rotating up and down the lifting shaft rotated by an operation of the lifting motor; Is supported on the first base is supported by the upper end of the elevating rod, is connected to orthogonally through the cylinder and the operating lever, the direction of travel of the rod is switched by a control means is repeatedly rotated left and right along the reciprocation of the rod A left and right pivot including a coaxial; The worm is supported by a second base that is supported and fixed by the upper end of the rotating shaft, the worm shaft is arranged on one end, and the worm wheel horizontal axis is built up and the worm wheel and the worm and the worm wheel to be engaged with the upper portion of the worm A front and rear tilt control unit including the second housing therein; And a nozzle fixing part in which a plurality of fixing fixtures having nozzle fixing holes formed on the upper surface of the third base supported by the upper end of a pair of operations that are respectively vertically coupled to both side ends of the horizontal axis are rolled apart at intervals. An injection nozzle support and a control device for blasting work are provided.

Description

An apparatus for the support and handling of blast nozzles

The present invention uses a compressed air to spray sand or shot balls on the surface of the workpiece to remove the casting sand, rust, etc. attached to the surface of the workpiece. By supporting a plurality of injection nozzles to be fixed, the front and rear inclination can be adjusted, and can move in the desired direction, greatly improving the efficiency of the blast work, and also the blast to make the operator more convenient to work The present invention relates to a spray nozzle support and an operating device for work.

Blast work, also called deburring work, removes casting sand or scale from the surface of casting metal products and cleans the surface part, or the surface part so that the coating layer is firmly attached without being easily detached when painting the surface. It refers to the operation of high speed spraying sand, shotball or mixtures of these mixtures on the surface using high pressure air in order to form fine irregularities in the bar, especially when blasting large workpieces such as hull blocks and large steel structures. On the upper side of the support of each side installed in the deconstruction room, one or more workers at the lower side or the side part hold the spray nozzle or spray nozzle connected with high pressure air and sand or short ball respectively, By spraying sand or short balls with compressed air come.

However, in the conventional method, the worker directly grips the high pressure injection nozzle or the hose connected thereto, and moves to the proper position to perform the operation, while maintaining the injection nozzle or hose in which the high pressure air is injected, while maintaining the correct position. It is not easy to grasp, and it is a lot of effort to cause musculoskeletal disorders of workers.In particular, it is necessary to wear a protective device such as a mask in an enclosed dust chamber where a lot of dust is scattered in hot weather such as summer. It wasn't much of a challenge for the workers to perform.

In addition, since one worker grips one spray nozzle or hose, several workers must be put in for quick work, and the work quality is not uniform depending on the position of the workpiece, as well as loss of manpower. There were various problems.

The present invention has been devised in view of the above problems, by holding and fixing a plurality of injection nozzles for blasting operations for sand or shotball can be easily moved to a desired position, but by a simple operation By providing a spray nozzle support and operation device for blasting work that allows the spray angle to be adjusted back and forth and evenly sprays on the surface of the workpiece even with multiple nozzles, the operator can perform the work more conveniently. Of course, the aim is to significantly improve the efficiency of blasting operations.

1 is a front view of the present invention

2 is a side view of the present invention

3 is a perspective view of main parts of the present invention

4 is a perspective view of a nozzle fixing part according to another embodiment of the present invention;

Figure 5 is a cross-sectional view of the wheel housing of the present invention

6 is a state diagram used in the present invention

<Description of Symbols for Major Parts of Drawings>

10: cart 11: drive motor 12: front wheel

13 steering wheel 14 rear wheel 15 control unit

16: wheel housing 17: holding plate 20: lifting unit

21: fixed frame 21a: horizontal portion 21b: vertical portion

22: lifting motor 23: rotating shaft 24: lifting rod

25, 44: worm 26: guide tube 27, 46: worm wheel

27a: female thread hole 28: first housing 28a: horizontal hole

30: left and right rotating part 31: first base 32: rod

33 cylinder 34 operating lever 35 rotating shaft

36: limit switch 37: bracket 40: front and rear tilt control unit

41: second base 42: adjustment handle 43: worm shaft

45: horizontal axis 47: the second housing 50: nozzle fixing

51: operation 52: third base 53, 54: fixed jig

53a, 54a: nozzle fixing hole 60: injection nozzle 61: auxiliary guide pipe

62: auxiliary lifting rod 63: reducer 64: dust cover

70: decontamination room 71: support 80: workpiece

Hereinafter, embodiments of the present invention for achieving the above object will be described in detail with reference to the accompanying drawings.

1 is a front view of the present invention, Figure 2 is a side view of the present invention, Figure 3 is a perspective view of the main part of the present invention, Figure 4 is a perspective view of a nozzle fixing according to another embodiment of the present invention,

The present invention is a cart (10) comprising a front wheel (12) rotated by a drive motor (11), a rear wheel (14) connected to a steering wheel (13) and a control unit (15);

A lifting part supported by a fixed frame 21 having a predetermined height fixed to an upper portion of the cart 10, and having a rotating shaft 23 rotated by the operation of the lifting motor 22 to pivot up and down the lifting bar 24 ( 20);

The cylinder is supported by the first base 31 supported by the upper end of the elevating rod 24 and the moving direction of the rod 32 is controlled by a control means via a cylinder 33 and an operating lever 34. A left and right pivot 30 which is connected orthogonally and includes a rotation shaft 35 which is repeatedly rotated from side to side according to the reciprocation of the rod 32;

A worm 44 supported by a second base 41 supported and fixed by an upper end of the rotation shaft 35 and having a worm shaft 43 coupled with an adjustment handle 42 at one end thereof; And a front and rear tilt control unit 40 including a worm wheel 46 which is arranged on the upper side of the worm 44 and a second housing 47 in which the worm 44 and the worm wheel 46 are installed. ;

A plurality of fixings having nozzle fixing holes 53a formed on the upper surface of the third base 52 supported by the upper ends of the pair of operation sections 51, the lower ends of which are vertically coupled to both side ends of the horizontal shaft 45, respectively. The jig 53 is a nozzle fixing portion 50 to be rolled apart at intervals; characterized in that consisting of.

The front wheel 12 is characterized in that the tubular wheel housing 16 having a lower surface opened to the outside thereof is installed.

The base plate 17 is attached to the bottom of the front of the wheel housing 16 is almost attached to the bottom surface of the decontamination room (70).

The lifting unit 20 is provided with worms 25 at both ends of the rotating shaft 23, which is rolled up above the horizontal portion 21a of the fixed frame 21, the lower end of each of the upper surface of the cart 10 A pair of guide tubes 26 of a tubular shape are vertically installed so that the upper ends thereof are fixed to both sides of the horizontal portion 21a of the fixing frame 21, and are fitted with the worm 25 and are female screw holes ( The first housing 28 having the lateral hole 28a in which the worm wheel 27 is formed, through which the worm wheel 27 is penetrated, is formed at the upper end of each guide tube 26 on the upper surface of the horizontal portion 21a of the fixing frame 21. It is fixed to communicate with, and the lifting rod 24 is formed on the outer circumferential surface to be coupled to the female threaded hole (27a) of the worm wheel (27) to be able to move up and down inside the first housing (28) and the guide pipe (26) It is characterized by being inserted.

The control means of the rod 32 is characterized in that the pair of limit switches 36 are installed at predetermined intervals on both sides of the lower end of the operation lever 34.

In addition, as another embodiment of the present invention, the nozzle fixing portion 50 has a plurality of nozzle fixing holes (54a) a pair of fixing jig (54) formed in the longitudinal interval at both sides of the horizontal axis 46 Each end is characterized in that it is coupled perpendicularly up and down.

In the drawings, reference numeral 21b is a vertical portion of the fixed frame 21, 60 is the injection nozzle, 61 is the auxiliary guide pipe, 62 is the auxiliary lifting rod, 63 is the reducer, 64 is the dust cover, 70 is the dust chamber, 71 is the support , 80 is the object.

Looking at the configuration and action effects according to the present invention as described in detail by each component as follows.

First, the cart 10 of the present invention is provided with a front wheel 12 rotated by the drive motor 11, a rear wheel 14 connected with a steering wheel 13, and a control unit 15, a control unit. By controlling the operation of the drive motor 11 through the control (15) and by adjusting the moving direction of the cart 10 by the operation of the steering wheel 13, the cart 10 to the desired working position in the decontamination room 70 Make it convenient to move.

Here, the control unit 15 controls not only the driving motor 11 but also the operation of the lifting motor 23 to be described later. In addition, the driving motor 11 and the lifting motor 23 are usually air compressors using compressed air because most of the cases in which the interior of the decontamination chamber 70 that performs blasting operations cannot use electric power are used.

In addition, the front wheel 12, as shown in Figs. 2 and 5 to prevent contamination by sand accumulated in the bottom surface of the dehumidification chamber 70 or dust scattered in the decontamination chamber 70. It is preferable to install a cylindrical wheel housing 16 in which only a lower portion thereof is opened to the outside, and in particular, a lot of sand or short balls are accumulated in front of the cart 10 in the spraying direction. At the lower end of the cart 10, the sand or short accumulated in front of the cart 10 can be pushed out to move the smoother and prevent the damage caused by the wear of the wheel housing 16, It is preferable to affix the base plate 17 which is almost in contact with the bottom surface.

Lifting unit 20 of the present invention is a rotating shaft 23 is rotated in accordance with the operation of the lifting motor 22 rotates up and down the lifting bar 24 as a result of the nozzle fixing portion 50 is provided on the top of the present invention The lifting nozzle 60 is configured to perform the blasting operation by moving the side surface of the large workpiece 80 upward and downward. The lifting motor (10) is operated by the operation of the control unit 15 provided in the cart 10. When 22 is driven, it is decelerated by the reducer 63 to rotate the rotary shaft 23. The worms 25 provided at both ends of the rotary shaft 23 are disposed in the horizontal hole 28a inside the first housing 28. The worm wheel 27 is rotated, and the worm wheel 27 is screwed with the female screw hole 27a formed at the center thereof, and tries to descend or ascend along the lifting rod 24 inserted into the guide tube 26. Since the first housing 28 is blocked by the upper surface or the lower surface of the horizontal hole 28a inside the first housing 28 As the lifting bar 24 is raised or lowered, accordingly, the left and right pivot 30 and the front and rear tilt control unit 40 and the nozzle fixing unit 50 are sequentially fixed to the upper part of the lifting bar 24. It will rise or fall.

Here, it is preferable that both vertical portions 21b of the fixed frame 21 have a side surface of the lower light cooperating side for a sense of stability.

The height of the fixed frame 21 and the length of the lifting bar 24 is determined according to the desired lifting range of the lifting bar 28.

The guide tube 26 guides the lifting of the lifting bar 24 while protecting the lower part of the lifting bar 24 from dust scattered in the decharging chamber 70, and the fixing frame 21. It will also be a supporter.

In addition, the protrusion of the lifting bar 24 is extrapolated to the upper end of the lifting bar 24 protruding to the upper part of the first housing 28 by extrapolating the dust cover 64 that is made of a corrugated shape. It is desirable to be able to protect from dust and the like that are scattered in).

In addition, a lower end is fixed to both upper surfaces of the cart 10 in a tubular shape having a hollow between the inner side of the vertical part 21b of the fixing frame 21 and each of the guide pipes 26, and the upper end of the fixing frame 21 is fixed. A pair of auxiliary guide pipes 61 are vertically installed to be fixed to the lower surface of the horizontal portion 21a of the 21, and an auxiliary lifting bar 62 having an upper end fixed to the first base 31 of the left and right pivoting part 30 is provided. ) Is inserted into the auxiliary guide tube 61 in such a way as to lift up and down to support the fixed frame 21 more stably, and the left and right pivots 30 are sequentially fixed to the lifting bar 24 and the upper portion thereof. It is preferable that the front and rear tilt adjusting unit 40 and the nozzle fixing unit 50 are lifted more stably.

The lifting motor 22 is to be controlled by the control unit 15 provided in the cart 10 as described above.

When the shot ball or sand is sprayed toward the workpiece 80 from the spray nozzle 60 supported by the fixed fixture 53 of the nozzle fixing unit 50, Since the spray nozzles 60 fixed to the fixed fixture 53 are spaced at a predetermined interval, the shot balls or sand sprayed onto the workpiece 80 are applied with non-uniform force, so that the surface of the workpiece 80 is unevenly processed. In order to prevent that, the front and rear tilt control unit 40 and the nozzle fixing part 50 which is fixed to the upper portion of the left and right rotating part 30 is rotated repeatedly from side to side in a predetermined angle range, the rod 32 Is pulled out of the cylinder 33 and proceeds to the left side, the rotating shaft 35 is rotatably fixed by the bracket 37 on the upper portion of the first base 31, both ends of the rotating shaft 35 of the rod 32 Rotate to the right through the operation lever 34 coupled to one end of each) In addition, when the rod 32 is pulled into the cylinder 33 and proceeds to the right side, the rotating shaft 35 is rotated to the left. At this time, the limit switch 36 is installed on both sides of the rod 32 side engaging portion of the actuating lever 34 as a control means for switching the traveling direction of the rod 33, and the rod 32 is moved to either side. After a predetermined distance, the rod 32 coupled portion of the actuating lever 34 touches the limit switch 36 on one side and operates the rod 32 in such a manner that the traveling direction of the rod 32 is immediately switched to the other side. 32 reciprocates a predetermined distance from side to side, and as a result, the rotational shaft 35 connected to the rod 32 and the operating lever 34 orthogonally is left by a predetermined angle while being fixed to the bracket 37. Or it is rotated to the right, and the front and rear tilt control unit 40 and the nozzle fixing part 50 which is fixed to the upper portion of the rotational shaft 35 is continuously rotated to the left and right by a predetermined angle. Therefore, the rotation angle of the rotation shaft 35 can be adjusted by adjusting the distance between the left and right limit switches 36.

Here, the cylinder 33 is also preferably a pneumatic cylinder that is operated by compressed air.

Front and rear tilt control unit 40 of the present invention to adjust the inclination of the nozzle fixing portion 50 by rotating the nozzle fixing portion 50 fixed to the upper and rear in accordance with the operation of the adjustment handle 42, the horizontal plane In order to easily perform a blasting operation on the lower portion of the workpiece 80 forming an inclination with the worm shaft, the worm shaft 43 is rotated by rotating the adjusting handle 42 to the left or the right. ), The worm 44 interlocks the worm wheel 46 engaged with the worm wheel 46 at the upper portion thereof, and the horizontal shaft 45 formed on the worm wheel 46 is rotated forward or backward, and thus the operating period 51 The nozzle fixing part 50 fixed to the horizontal axis 45 is rotated forward or rearward through) to adjust the inclination of the nozzle fixing part 50.

The number of the fixing jig 53 in which the nozzle fixing hole 53a to which the injection nozzle 60 is fixed is formed is not limited, but 4 to 8 are preferable.

Meanwhile, as shown in FIG. 4, a pair of fixing fixtures 54 having two or more nozzle fixing holes 54a vertically spaced apart from each other in the nozzle fixing part 50 are arranged in the opposite direction to each other in the horizontal axis 46. Bar may be configured to be orthogonally coupled to both ends of the bar), by configuring the nozzle fixing portion 50 in this way, it is easy to perform the blast operation on the surface portion near the vertical state, such as the side of the workpiece 80 Can be lost.

Here, the number of the nozzle fixing holes 54a formed in the fixing fixtures 54 is not limited, but is preferably 2 to 4 pieces. Since each fixing jig 54 is fixed up and down at both ends of the horizontal shaft 46, even if the number of nozzle fixing holes 54a formed in each fixing jig 54 is two to four, the actual shot ball or sand The height range in which is injected is the same as having formed four to eight nozzle fixing holes 54a.

In this way, the present invention does not require the operator to directly hold the injection nozzle or the hose and perform the blasting operation, thereby making the worker's work easier and preventing the musculoskeletal disorder of the worker. Work can be carried out by the adjustment of the present invention by a single worker, bringing a significant improvement in the work efficiency, as well as the work quality is more effective.

Claims (7)

A cart 10 including a front wheel 12 rotated by the drive motor 11, a rear wheel 14 connected to the steering wheel 13, and a control unit 15; Lifting unit which is supported by a fixed frame 21 of a predetermined height fixed to the upper portion of the cart 10, the rotating shaft 23 is rotated by the operation of the lifting motor 22 rotates up and down the lifting bar 24 ( 20); The cylinder is supported by the first base 31 supported by the upper end of the elevating rod 24 and the moving direction of the rod 32 is controlled by a control means via a cylinder 33 and an operating lever 34. A left and right pivot 30 which is connected orthogonally and includes a rotation shaft 35 which is repeatedly rotated from side to side according to the reciprocation of the rod 32; A worm 44 supported by a second base 41 supported and fixed by an upper end of the rotation shaft 35 and having a worm shaft 43 coupled with an adjustment handle 42 at one end thereof; And a front and rear tilt control unit 40 including a worm wheel 46 which is arranged on the upper side of the worm 44 and a second housing 47 in which the worm 44 and the worm wheel 46 are installed. ; A plurality of fixings having nozzle fixing holes 53a formed on the upper surface of the third base 52 supported by the upper ends of the pair of operation sections 51, the lower ends of which are vertically coupled to both side ends of the horizontal shaft 45, respectively. Spray nozzle support and operation device for blasting operation, characterized in that consisting of; According to claim 1, The lifting unit (20) is provided with worms (25) on both ends of the rotating shaft 23 that is horizontally rolled up above the horizontal portion (21a) of the fixed frame 21, the lower end of the cart (10) A pair of guide tubes 26 of a tubular shape are vertically installed so as to be fixed to both upper surfaces of the both sides, and the upper ends thereof are fixed to both sides of the horizontal portion 21a of the fixing frame 21, and meshed with the worm 25. And a first housing 28 having a lateral hole 28a in which a worm wheel 27 with a female screw hole 27a penetrated in the center thereof is formed, and the first housing 28 is formed on the upper surface of the horizontal portion 21a of the fixed frame 21. It is fixed to communicate with the upper end of the pipe 26, the lifting rod 24 is formed on the outer circumferential surface to be coupled to the female thread hole (27a) of the worm wheel 27, the first housing 28 and the guide tube 26 Injection nozzle support and operation apparatus for blasting operation, characterized in that the insertion and lifting inwardly. According to claim 1, wherein the nozzle fixing section 50 has a plurality of nozzle fixing holes (54a) of a pair of fixing jig (54) formed in the vertical interval at regular intervals up and down with both side ends of the horizontal axis 46, respectively. Spray nozzle support and operating device for blasting, characterized in that orthogonally coupled. The apparatus of claim 1, wherein the front wheel (12) is provided with a cylindrical wheel housing (16) having a lower portion opened outwardly thereof. 5. The spray nozzle support and operating device for blasting according to claim 4, wherein a holding plate (17) is attached to the bottom of the front surface of the wheel housing (16) almost in contact with the bottom surface of the deburring chamber (70). . 2. The spray nozzle support according to claim 1, wherein the control means of the rod 32 is a pair of limit switches 36 installed at both ends of the lower end of the actuating lever 34 at predetermined intervals. 3. And controls. According to claim 1, wherein the lower end is fixed to the upper surface of both sides of the cart 10 in a tubular shape having a hollow between the inside of the vertical portion (21b) of the fixing frame 21 and each of the guide pipes 26 A pair of auxiliary guide pipe 61 is vertically installed to be fixed to the lower surface of the horizontal portion (21a) of the fixing frame 21, the upper end of the auxiliary base is fixed to the first base 31 of the left and right rotating part (30) Injection nozzle support and operation apparatus for blasting operation, characterized in that the elevating rod (62) is inserted into the auxiliary guide pipe (61) to be elevated.