JPH0966456A - Polishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove rust and polish primer material on a steel trough, a lounge plate, a bubble plate or the like automatically, smoothly, precisely and efficiently. SOLUTION: A polishing machine is composed of a casing 5, which can be set astraddle of the tip surface 6A of a trough or the like with a to-be polished material 6 erected, a plurality of straddled rollers 7, which are provided inside the casing 5 in a rotatable manner around horizontal shafts 17, a plurality of sandwiching rollers 8 sandwiching the to-be polished material 6 from both sides, an air grinder 9 for polishing the tip surface 6A of the to-be polished material 6, a flap wheel 10 for polishing the tip side surface 6B of the to-be polished material 6, and a machine body proceeding drive means and a machine body proceeding automatically stopping means 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blast cleaner used for removing rust and polishing the corners of metal materials such as steel plates used for bridges, shipbuilding and other structures.

[0002]

2. Description of the Related Art Generally, steel materials used for bridges, shipbuilding, etc., such as troughs, longiblates, and valve plate welds, have rust removal and primer materials to prevent welding defects caused by rust and primer. Polishing process is required. Conventionally, this kind of work such as rust removal is mainly performed by a worker using a disk grinder, a wheel brush, and the like.

[0003]

By the way, the above-mentioned prior art has a problem that a great deal of labor and time are required and the work efficiency is very poor. The present invention has been made in view of the above situation, and an object of the present invention is to provide a polishing and cleaning machine capable of improving processing accuracy and workability by automation and improving productivity.

[0004]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the present invention is a casing capable of straddling the upper end surface of the material to be polished in a standing state, a plurality of straddle rollers rotatably provided in the casing about a horizontal axis, and It is characterized by comprising a plurality of holding rollers sandwiching the cleaning material from both sides, a polishing and cleaning means on the upper end surface of the material to be polished, a polishing and cleaning means on the side surface of the upper end of the material to be polished, and a machine body traveling drive means. (Claim 1).

In this case, the casing is straddled so that its straddling roller rests on the upper end surface of the material to be ground, and both side surfaces of the material to be ground are clamped by holding rollers, and the material to be ground and swept by the grinding and sweeping machine. After setting the upper end of the material so that it travels stably as a guide, at the same time when both the cleaning means are started to drive, the traveling drive means is started at the same time to remove rust and primer on the upper end of the material to be cleaned. The material is automatically polished.

Further, according to the present invention, since the machine body traveling automatic stopping means is provided in the casing, the polishing / cleaning machine can be automatically stopped at the end of the material to be polished or at an arbitrary set position ( Claim 2). Further, in the present invention, since both of the polishing and cleaning means and the driving means are driven by compressed air, the operability is good and the maintenance is simple and easy (claim 3).

Further, according to the present invention, at least one side surface of the material to be ground to be polished of the holding roller is pressed against the material to be ground by an urging means such as a spring or an air cylinder, so that the polishing machine can be stabilized. It is possible to finish the polishing surface cleanly and accurately by holding it well and smoothing its traveling movement (claim 4). Further, according to the present invention, the upper end surface polishing means is a disk grinder, and the upper end side surface. Since the polishing means is a flap foil, the workability as well as the operability is good, and an efficient and good finished surface can be obtained (Claim 5).

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 is a scouring machine, which is horizontally fixed in a vertical direction intermediate portion of a machine frame 2 and a cover 3 provided on five surfaces except a lower surface of the machine frame 2 configured in a rectangular parallelepiped shape. A casing 5 is formed with the mounting plate 4, a plurality of straddle rollers 7 mounted on the lower surface of the mounting plate 4 and placed on the end surface 6A of the material to be cleaned (hereinafter referred to as trough) 6, and the upper end of the trough 6. A plurality of holding rollers 8 for clamping the side surfaces 6B and 6C so as to sandwich them, an air grinder 9 that is an upper end surface cleaning means, a flap wheel 10 that is a cleaning means for the upper surface 6B of the trough, and a machine body traveling drive means 11 And an automatic body traveling stopping means 12.

The cover 3 of the casing 5 has an upper plate 3A, a front plate 3B, and a rear plate 3C which are detachably attached by means of screws and bolts 13 and the like. A cutout portion 14 capable of straddling the trough 6 is provided in half, and a mounting cutout portion 15 of the holding roller 8 is provided in the lower half of the front and rear portions of the left side plate 3D. Handles 16 are provided on the front and rear ends of the upper surface of the casing 5, respectively.

The straddle roller 7 located at the front and rear ends at the center in the left-right direction is rotatably attached to the mounting plate 4 via a shaft 17 and a bracket 18 which are orthogonal to the trough 6. Projects downward from the mounting plate 4. A hole 20 through which the ceramic disk 19 of the air grinder 9 passes vertically is provided in the central portion of the mounting plate 4, and the flap wheel 1 is provided on the front left side thereof.
A hole 21 through which 0 passes vertically is provided.

The mounting plate 4 is provided with a grinder support shaft 22 located in the center upper surface of the rear end portion in the front-back direction.
3, the rear end 22B of the support shaft 22 protrudes outward from the cover rear plate 3C.
A grinder tilt angle adjusting plate 24 is fixed to 2B. A horizontal pin 25 orthogonal to the shaft 22 is rotatably attached to the front end portion 22A of the support shaft 22.
5, the lower end of the grinder holding member 26 is fixed,
The member 26 is tiltable back and forth.

A coil spring 28 for preventing disk floating is hooked between the upper end of the grinder holding member 26 and a spring hooking member 27 fixed to the mounting plate 4 in front of the pin 25, and the disk 19 is held. Is always in contact with the upper end surface 6A of the trough 6 by its own weight. The rear end of the air grinder 9 is attached to the holding member 26 in a tilted manner and detachably.

Further, the tilt angle adjusting plate 24 has a structure shown in FIG.
As shown in FIG. 5, an arc-shaped elongated hole 29 having the center of the shaft 22 as the center of curvature is provided, and a fixing screw 30 fixed to the rear cover plate 3C in a rearward protruding shape is penetrated into the elongated hole 29, and the screw 30 The adjusting plate 24 is tightened by a wing nut 31 screwed to the. An angle scale disk 32 is fixed to the rear plate 3C concentrically with the shaft 22.

The flap foil 10 has a foil body 10A formed by radially providing flap-shaped abrasives such as sandpaper and sand cloth on the outer circumference of a disk, and is detachably attached to an output shaft 34 of an air motor 33. , The air motor 33 can be located on the left side of the front side of the mounting plate 4, and can be replaced by the supporting means 35 so that the wheel body 10A contacts the left side surface of the upper end portion of the trough 6 below the through hole 21. Is attached to.

The support means 35, as shown in FIG.
Two front and rear guide plates 36 fixed to the upper right side of the mounting plate 4.
And is supported by the guide plate 36 so as to be movable in the left and right directions with respect to the trough side surface 6B, and the motor 33 is provided at the left end.
A motor base plate 37 to which is attached, a cylinder mounting plate 38 standing upright at the right end of the guide plate 36, an air cylinder 39 fixed to the side surface of the mounting plate 38, and the base plate 37 downward. It is composed of a coil spring 40 for urging.

The holding roller 8 is mounted on the machine frame 2 at a lower front and rear portion of the mounting plate 4 so as to be located on the right side of the trough 6, and a pair of upper and lower machine body traveling drive rollers 4 are mounted on the machine frame 2.
1 and a pair of upper and lower clamp rollers 42 and clamp air cylinders 43 attached to the lower surface of the mounting plate 4 so as to be located on the left side of the trough 6 corresponding to the rollers 41. 42 trough 6
The side wall 6B is pressed by the cylinder 43, and the trough 6 is clamped by the rollers 41 and 42 from both side surfaces.

The cylinder 43 is of a twin rod type and is attached to the lower surface of the mounting plate 4 by a bracket 44, and a part of the cylinder 43 protrudes from the cutout portion 15 to the outside of the cover 3 and an outer end metal member 46 of the rod 45. The clamp roller 42 is rotatably attached to the shaft via a vertical axis 47. The drive roller 41 is fixed to vertical axes 52 and 53 that are rotatably supported by brackets 48 and 49 fixed to the machine frame 2 via bearings 50 and 51.

As shown in FIG. 4, a transmission gear 54 and a transmission pulley 55 are fixed between the upper and lower rollers 41 on the vertical axis 53 of the rear portion. The transmission gear 54 is vertically attached to the mounting plate 4. A drive gear 58 fixed to an output shaft 57 of a traveling air motor 56 mounted in a penetrating manner is meshed. Further, the vertical axis 52 at the front part is shown in FIG.
As shown in FIG. 5, a transmission pulley 59 is fixed between the upper and lower rollers 41, and a transmission belt 60 is wound around the pulley 59 and the transmission pulley 55 so that each roller 41 is forcibly driven. ing.

The machine body traveling drive means 11 includes a drive roller 41, brackets 48 and 49, bearings 50 and 51,
Vertical axes 52 and 53, transmission gear 54, transmission pulleys 55 and 5
9, a traveling air motor 56, a drive gear 58, and a transmission belt 60.
Is pressed against the trough side surface 6B by the clamp air cylinder 43, so that the machine body can be reliably and smoothly run along the trough 6 without idling.

The machine body automatic stop means 12 is shown in FIG.
As shown in FIG. 5, a mounting member 61 mounted on the cover front plate 3B and fixed to the front plate 3B.
An elevating rod 62 which is attached to the member 61 so as to be vertically movable, a pencil type air cylinder 63 which is attached to the member 61 in parallel with the elevating rod 62 and downward, and a rod pressing coil spring 64, Lifting rod 6
A guide roller 66 and a mechanical valve 69 rotatably attached to the lower end of 2 via a horizontal shaft 65. A rod outer end 67 of an air cylinder 63 is connected to a lower portion of the elevating rod 62 by a connecting member 68. There is.

As shown in FIG. 5, the mechanical valve 69
Is actuated by a cam 70 formed on the elevating rod 62, the guide roller 66 of the stopping means 12 is disengaged from the upper end surface 6A of the trough 6 and the rod 62 is lowered, and at the same time, the guide roller 66 is actuated. Grinder 9,
The air motors 33 and 56 are automatically stopped.

In the above embodiment, when the upper end surface 6A and the left side surface 6B, which are the welded portions of the steel trough 6, are to be derusted, as shown in the drawing of the blast cleaner 1, the upper end surface 6 of the trough 6 is removed.
The straddle roller 7 is placed on A, and the clamp air cylinder 4
3, the clamp roller 42 is moved forward, and the drive roller 4
After clamping the trough 6 with 1 and holding the blasting machine 1 on the trough 6 in a straddle shape, loosening the wing nut 31 and rotating the angle adjusting plate 24, the disc 19 of the air grinder 9 is rotated.
Of the air motor 33 of the air grinder 9, the flap wheel 10 and the machine body traveling drive means 11,
The cleaning operation is started by starting 56. At this time, the guide roller 66 of the automatic stopping means 12 contacts the upper end surface 6A of the trough and rolls.

When the upper surface 6A and the side surface 6B of the trough 6 are simultaneously and automatically removed as the machine runs, the guide roller 66 of the stopping means 12 is disengaged from the upper surface 6A of the trough and pushed down by the coil spring 64. The mechanical valve 69 is operated by the cam 70, the air motor 56 of the traveling drive means 12 is stopped, the air motor 33 of the air grinder 9 and the flap wheel 10 is stopped, and the polishing work is completed.

According to the above embodiment, the upper end surface 6A and one side surface of the trough 6 can be simultaneously and automatically and accurately and cleanly cleaned, the labor of the operator can be greatly reduced, and the skill can be improved. It is possible to improve work efficiency without needing it, and since compressed air is used as a power source, operability is good and maintenance can be simplified. Further, since the grinder lateral direction inclination angle adjusting means is provided, it is possible to cope with the inclination angle of the trough upper end surface 6A. Then, the drive roller 4
Since 1 is one of the constituent members of the holding roller 8, it can come into contact with the side surface of the trough 6 with an appropriate pressure to smoothly and stably run the machine body at a constant speed.

The present invention is not limited to the above embodiment. For example, the scouring means and the machine body traveling drive means can be electrically driven, and the automatic stop means 12 can be a sensor such as a limit switch. , Flap foil 10
The design can be changed as appropriate, such as by disposing the troughs on both sides of the trough 6.

[0026]

As described above, the present invention has a casing capable of straddling the upper end surface of a material to be polished in a standing state,
A plurality of straddle rollers rotatably provided in the casing about a horizontal axis, a plurality of holding rollers for sandwiching the material to be ground from both sides, a means for cleaning and cleaning the upper end surface of the material to be ground, Since it is characterized by including the scouring and cleaning means on the upper end side of the cleaning material and the machine running drive means, the scouring and cleaning such as rust removal of the upper and side surfaces of the material to be ground and polishing of the primer material are carried out. Automatic, stable, highly accurate, reliable, and efficient, does not require the skill of the operator, can significantly reduce the operator's fatigue, and improve quality and productivity. It is possible (claim 1).

According to the second aspect of the present invention, since the machine body traveling automatic stopping means is provided in the casing, the polishing / cleaning machine is automatically operated at the end of the material to be ground or at any setting position. Can be stopped. According to the third aspect of the present invention, since both of the polishing and cleaning means and the driving means are driven by compressed air, the operability is good and the maintenance is simple and easy.

Further, according to the invention of claim 4,
At least one side surface of the material to be ground of the holding roller is pressed against the material to be ground by an urging means such as a spring or an air cylinder, so that the material can be held stably and its traveling movement is smooth. The polished surface can be finished neatly and accurately. Further, according to the invention of claim 5, the upper end surface cleaning means is a disk grinder, and the upper end side surface cleaning means is a flap wheel. Therefore, the operability as well as the workability is improved. Good, efficient, and good finished surface can be obtained.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention with one cover side plate removed.

FIG. 2 is a cross-sectional plan view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a sectional view taken along line CC of FIG. 1;

5 is a left side view of FIG. 1. FIG.

FIG. 6 is a right side view of FIG. 1 with some parts omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polishing machine 5 Casing 6 Trough (material to be polished) 6A Upper end surface 6B Upper end side surface 7 Straddle roller 8 Holding roller 9 Air grinder (polishing means) 10 Flap wheel (polishing means) 11 Machine traveling drive means 12 Airframe traveling automatic stop means 33 Air motor 41 Airframe traveling drive roller (holding roller) 42 Clamp roller (holding roller) 43 Clamp air cylinder 56 Air drive motor

Claims (5)

[Claims] 1. A casing capable of straddling an upper end surface of a material to be polished in an upright state, a plurality of straddle rollers rotatably provided in the casing about a horizontal axis, and the material to be polished. A holding roller for sandwiching the material from both sides, a means for cleaning and cleaning the upper surface of the material to be ground, a means for cleaning and cleaning the upper surface of the material to be cleaned, and a machine running drive means. Sweeper. 2. The scouring machine according to claim 1, wherein the casing is provided with a machine body traveling stopping means. 3. The blasting machine according to claim 1, wherein both the blasting means and the driving means are driven by compressed air. 4. The cleaning roller to be cleaned is pressed by at least one side surface of the holding roller to be cleaned by a biasing means such as a spring or an air cylinder. The blast cleaner according to item 3. 5. The blast cleaner according to claim 1, wherein the upper end side blasting means is a disk grinder, and the upper end side blasting means is a flap wheel.