KR200302548Y1 - Grinding wheel for surface processing - Google Patents

Abstract

The present invention relates to a polishing wheel for surface treatment that is free of non-adhesive detachment with sandpaper and excellent in balancing, and the polishing wheel for surface treatment of the present invention has an outer diameter surface contacted with an object for gloss and polishing on an object surface. Sandpaper formed in a round belt shape so as to be rotationally rubbed; The inner diameter surface of the sandpaper is pressurized with air pressure to fix the sandpaper to be detachably detachable, and is formed of an elastic material to alleviate the impact applied to the sandpaper, and the outer circumferential surface is in contact with the inner diameter surface of the sandpaper. A wheel-shaped tube whose size of the outer circumferential surface is deformed according to the air pressure of the hollow part filled with air; And an air passage is formed in close contact with the central inner diameter surface of the tube to seal the hollow portion of the tube, and an air passage is formed so that air flows into the hollow portion, and an air pressure regulator for selectively controlling the air passage is formed. Rotation support means that the center hole is formed so that the rotating shaft is inserted into; can reduce the manpower and time and cost, improve productivity, free sanding detachable, environmentally friendly, It can be used by beginners and female workers, and the balance is improved to increase the precision of the surface treatment, to prevent noise and vibration, to improve the surface treatment quality of the workpiece, and to use semi-permanently. It can save and have an effect that can be applied to various objects.

Description

Grinding wheel for surface processing

The present invention relates to a polishing wheel for surface treatment, and more particularly to a surface treatment polishing wheel free of non-adhesive detachment with sandpaper and excellent in balancing.

In general, as shown in FIG. 1, a conventional surface treatment polishing tool, that is, one-sided pawl 1 is a tool for polishing a surface of an object such as a bowl made of metal, an extension, a case, or the like to be polished. The fabric layer (2) laminated in layers is sewn in a sewing thread (3) to make a disk shape, and the center hole (4) is formed so that the rotation axis can be inserted in the center, and the object and the outer peripheral surface It was a structure formed by bonding the ring-shaped sandpaper 5 to be rubbed with the adhesive agent 6.

However, the conventional surface treatment powder (1), although the whole is made of a fabric material, even though it is tightly sewn into the sewing chamber (3), because of its twisting and flexible material, the sandpaper is not balanced during high-speed rotation. The surface treatment is not smooth during processing, such as shaking or shaking, and a highly skilled expert must precisely cut and balance the surface of the cow in order to balance it. There is a problem that the material is discharged to pollute the environment, harming the health of the worker.

In addition, in order to fix the outer peripheral surface and sandpaper (5) of the conventional cowl (1) must be bonded with the adhesive (6), the work of tearing off the adhesive again during the replacement of the sandpaper (5) due to the wear of the sandpaper (5) is very It is cumbersome and the environmental pollution due to the repeated bonding operation is serious because the adhesive 6 is reused when the new sandpaper 5 is replaced.

In addition, when inserting the rotation shaft (not shown) of the center hole 4, since the material of the conventional pau 1 is flexible, the diameter of the center hole 4 is made smaller than the diameter of the rotation shaft for firm fixing so that the rotation shaft is inserted. Insertion work is very difficult, so it is impossible for female workers or workers with weak muscles to work, and it takes a lot of work manpower and labor cost, and the material of Pau (1) is flexible, so the center hole becomes loose due to long-term use. There was a problem turned around.

In addition, the conventional cowl (1) has a poor balance and poor surface treatment, resulting in noise and vibration, causing noise pollution, as well as poor processing, and abrasion (1) diameter due to abrasion. If the reduction is more than a predetermined degree, there is a problem in that resources are wasted due to disposal because the work is impossible.

In addition, the work time and work cost due to the conventional balancing work and the bonding work of the powder (1) is increased and productivity is reduced, the outer peripheral surface of the powder (1), that is, the shape of the polishing surface is always fixed, so that the surface of various shapes, That is, there are many problems such as not being widely applicable to concave or convex surfaces.

The purpose of the present invention for solving the above problems is structurally robust, so that no balancing work is necessary, thereby reducing workforce, time and cost, and preventing the discharge of environmental pollutants generated by balancing work. It improves productivity, frees up and detaches sandpaper by fixing sandpaper using air pressure, greatly reduces sandpaper replacement time and manpower, and requires no bonding work when replacing non-adhesive sandpaper. The present invention provides a polishing wheel for surface treatment.

In addition, another object of the present invention, since the diameter of the center hole is fixed, the insertion of the rotary shaft is easy to insert and detach the work, female workers or workers with weak muscle strength is also possible, and the fixing of the rotary shaft is solid, the wheel of the grinding wheel It is to provide a polishing wheel for the surface treatment that can be prevented from turning.

In addition, another object of the present invention, the balance is improved to increase the precision of the surface treatment, to prevent noise and vibration, to improve the surface treatment quality of the object to be processed, and to prevent machining defects In addition, when the diameter of the grinding wheel is reduced or the outer shell is damaged, only the outer shell can be used semi-permanently to provide a polishing wheel for surface treatment that can save resources.

In addition, another object of the present invention is to increase the working time and work cost by eliminating the balance work, bonding work and sandpaper replacement work to greatly improve the productivity, by adjusting the air pressure to adjust the shape and curvature of the polishing surface The present invention provides a polishing wheel for surface treatment that can be applied to a wide range of object surfaces, that is, concave or convex.

1 is a perspective view showing a conventional pawl for surface treatment.

Figure 2 is an exploded perspective view showing a polishing wheel for surface treatment according to an embodiment of the present invention.

3 is a partial cross-sectional view of FIG. 2.

4 to 6 are partial cross-sectional views showing a step change of the outer circumferential surface according to the air pressure of the tube of FIG.

The polishing wheel for surface treatment of the present invention for achieving the above object is a sandpaper formed in a round belt shape so that the outer diameter surface is in contact with the object to rotate and friction for polishing and polishing on the surface of the object; The inner diameter surface of the sandpaper is pressurized with air pressure to fix the sandpaper to be detachably detachable, and is formed of an elastic material to alleviate the impact applied to the sandpaper, and the outer circumferential surface is in contact with the inner diameter surface of the sandpaper. A wheel-shaped tube whose size of the outer circumferential surface is deformed according to the air pressure of the hollow part filled with air; And an air passage is formed in close contact with the central inner diameter surface of the tube to seal the hollow portion of the tube, and an air passage is formed so that air flows into the hollow portion, and an air pressure regulator for selectively controlling the air passage is formed. It characterized in that it comprises a; rotation support means that the center hole is formed so that the rotation shaft is inserted into.

Further, the tube may be widely applied to various shapes of object surfaces, that is, concave or convex surfaces, when the air pressure of the hollow part is weak, when the outer diameter surface is bulged, and the air pressure of the hollow part is medium. It is preferable that the cross-sectional shape is generally " π " shaped so that both ears protrude at both corners of the sealed body portion so that the outer diameter surface becomes flat and the air pressure of the hollow portion is strong, so that the outer diameter surface is concave. .

In addition, in order to absorb the impact applied to the object and to maintain the accuracy during friction with the object, the tube is formed from the outermost surface to the uppermost layer of the adhesive layer, the shock absorbing buffer rubber layer, the cushioning soft fabric layer, and the structural hard fabric layer. It is preferable that the outer skin laminated in order is provided.

In addition, the rotation support means has a center hole in which the rotation shaft is inserted in the center, the air passage is formed therein, and the air pressure control unit is connected to the air passage on one side to maintain the correct balance during rotation. A disc-shaped bobbin of a single (engineering plastic material) or a double (metallic material embedded in the plastic material) material, which is sealingly inserted into the hollow part of the tube; And a flat ring-shaped fixed wheel made of a metal (aluminum alloy) material pressed against the tube to seal the tube and screwed to the bobbin to pressurize the tube.

Meanwhile, sealing grooves are formed on left and right sides of the bobbin to be engaged with sealing protrusions formed on the inside of the tube for internal sealing, and sealing grooves are engaged with sealing protrusions of the fixing wheel, respectively, on the left and right sides of the tube. The screw is assembled to the fixed wheel and the bobbin to prevent the injury of the operator during high-speed rotation is preferably a screw head recessed screw in which the screw head is recessed in the screw head groove so that the screw head does not protrude outward.

Hereinafter, a polishing wheel for surface treatment according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in Figures 2 and 3, the polishing wheel 10 for surface treatment according to a preferred embodiment of the present invention is composed of a sandpaper 11, a tube 12, and a rotation support means to be.

That is, the sandpaper 11 is formed in a round belt shape so that the outer diameter surface is in contact with the object to rotate and rub in order to polish the surface of the object (not shown), and various shapes and types according to the type of surface treatment. The sandpaper 11 may be used, and is easy to wear or other kinds of sandpaper 11 replacement and detachment because it is fixed non-adherently by the tube and air pressure to be described later.

In addition, the tube 12 of the present invention, by pressing the inner diameter surface of the sandpaper 11 to the pressure of air to fix the sandpaper 11 so as to be detachably detachable and applied to the sandpaper 11 at the same time. It is formed of an elastic material such as rubber so that the impact is alleviated, the outer circumferential surface is in contact with the inner diameter surface of the sandpaper 11, the wheel shape that the size of the outer circumferential surface is deformed according to the air pressure of the hollow portion 13 filled with air therein It can be produced in the ring shape of.

Such, the tube 12 is usually made of a diameter of the outer diameter surface is smaller than the inner diameter of the sandpaper 11 or appropriately to facilitate the insertion of the sandpaper 11, the air pressure of the hollow 13 If increased, the diameter of the outer diameter surface swells to be larger than the diameter of the sandpaper 11 to fix the sandpaper 11 by air pressure.

Therefore, the operator does not need to glue the sandpaper 11 to the outer diameter surface of the tube 12, and inserts the sandpaper 11 to the outer diameter surface of the tube 12, and then the tube 12 Increasing the air pressure by injecting air into the inside of the tube 12 swells to firmly fix the sandpaper 11 in a non-adhesive manner.

At this time, the hollow portion 13 air pressure inside the tube 12 is able to press the entire inner diameter surface of the sandpaper 11 by only a slight increase, thereby very securely fixing the sandpaper 11, the tube (12) For adjusting the air pressure therein, a separate air pressure adjusting mechanism 18 to be described later is required.

On the other hand, the rotation support means, the tube 12 is located between the tube 12 and the rotating shaft so that the tube 12 can be connected to a rotating shaft (not shown) of the electric motor (not shown), The air passage 17 is formed to be tightly fixed to the central inner diameter surface of the tube 12 to seal the hollow portion 13, and the air flows into the hollow portion 13, and the air passage 17 is formed. The air pressure regulator 18 to selectively control is formed, the center hole 13 is formed so that the rotation shaft is inserted into the center.

The rotation support means may be manufactured in an integral form, but preferably, two fixed wheels which are screw-assembled on both sides of the bobbin 14 and each of the bobbin 14 so as to maintain an accurate balance during rotation. It may consist of (15).

That is, the bobbin 14, the central hole 16 is formed in the center of the rotation shaft is inserted, the air passage 17 is formed therein, the air pressure control connected to the air passage 17 on one surface A sphere 18 is installed, and is in the shape of a disc of a single material (engineering plastic material) or a double material (material embedded with a metal core inside the plastic material) which is sealedly inserted into the hollow portion 13 of the tube 12, and the fixing is performed. The wheel 15 is a flat ring of a metal material (aluminum alloy) which is in close contact with the tube 12 to seal the tube 12 and is screwed to the bobbin 14 to press the tube 12. Shape.

Here, as shown in FIG. 3, the sealing protrusions 19 are formed on the left and right sides of the bobbin 14 so as to smoothly seal the inside of the tube 12. It is preferable that the sealing groove 20 is formed, and the sealing groove 22 is engaged with the sealing protrusion 21 of the fixed wheel 15 on the left and right sides of the tube 12, respectively.

On the other hand, the tube 12, as shown in Figure 3, from the outer diameter surface to the uppermost layer, the adhesive layer 24, the shock-absorbing buffer rubber layer 25, cushioning soft fabric layer 26, structural rigid fabric layer The outer shell 23 laminated in the order of (27) is provided to absorb the shock applied to the object and maintain the accuracy at the time of friction with the object.

Here, the buffer rubber layer 25 may be made of various urethane sponges or foamed rubbers, and the soft fabric layer 26 may be made of a relatively low-tensile fabric, etc., the hard fabric layer 27 May be made of a relatively high-strength fabric or the like.

Therefore, due to the outer shell 23, the impact and repulsive force received by the object during surface treatment can be alleviated and an appropriate cushioning can be formed to actively respond to the surface of the object.

In addition, as shown in Figures 2 and 3, the screw head of the screw 28 screwed to the fixed wheel 15 and the bobbin 14, the operator is injured during high-speed rotation of the fixed wheel 15 It is preferable that it is a screw head recessed screw in which the screw head is recessed in the screw head groove 29 so as not to protrude outward.

On the other hand, the tube 12 of the present invention, as shown in Figures 3 and 4 to 6, can be polished the surface of the object of various forms according to the air pressure of the hollow portion 13, The cross-sectional shape is an overall "π" shape in which both ears 122 protruding from both corners of the sealed body portion 121 is formed.

That is, as shown in FIG. 4, when the air pressure of the hollow part 13 is weak, the protruding both ears 122 are positioned to be inclined inward, as it is originally manufactured, and concave by bulging the outer diameter surface. The object 100 having the surface 100a can be processed, and as shown in FIG. 5, when the air pressure of the hollow part 13 is medium, both ears protrude as the tube 12 is properly inflated. The outer diameter surface is flattened while the portion 122 is expanded, so that the object 101 having the flat surface 101a can be processed. As shown in FIG. 6, when the air pressure of the hollow part 13 is strong, As the tube 12 is fully inflated, the protruding ears 122 are more extended outwards and consequently become concave of the outer diameter surface. Thus, the object 102 having the bulging surface 102a can be processed.

Therefore, by injecting or discharging air into the hollow portion 13 through the air pressure adjusting mechanism 18 formed in the bobbin 14, to facilitate the replacement and detachment of the sandpaper 11 at the same time to inject more air and its injection amount When the scavenger is adjusted by precisely adjusting the bending form and the degree of bending of the outer diameter surface of the tube 12, the operator can process objects 100, 101 and 102 having various surfaces very conveniently.

Therefore, the balance is more accurate than the conventional pawls, which are all fabric materials, and the operator does not need to perform separate balancing work, and even beginners and women who are not skilled can work very conveniently, and pollutants emitted during balancing work Eco-friendly benefits can be obtained by preventing the use of adhesives used for materials or rebonding.

In addition, the polishing wheel for surface treatment of the present invention is very durable, easy to fix the rotating shaft, and firmly fixed, and can be used semi-permanently, thereby improving the quality of polishing and significantly reducing the production cost. You can get this.

In addition, there are many advantages such as enabling the surface treatment of an object having various shapes of surfaces, that is, concave, flat, or convex.

The present invention is not limited to the above-described embodiment, and of course, modifications by those skilled in the art are possible without departing from the spirit of the present invention.

For example, in the embodiment of the present invention, the material of the bobbin is limited to engineering plastics or double materials, and the material of the fixed wheels is made of aluminum metal or the like. It may be manufactured, the outer shell is also made of a variety of materials.

Therefore, the scope of the claims in the present invention is not defined within the scope of the detailed description, but will be limited by the claims and the technical spirit thereof.

As described above, according to the polishing wheel for surface treatment of the present invention, since it is structurally robust, no balancing work is required, thereby reducing workforce, time, and cost, and preventing the discharge of environmental pollutants generated by balancing work. It can improve productivity, and use sand pressure to fix sandpaper, thus freeing and removing sandpaper, greatly reducing sandpaper replacement time and manpower, and no bonding work when replacing non-adhesive sandpaper. Since the diameter of the center hole is fixed, it is easy to insert the rotary shaft, so the detachable work is easy, and the female workers or the workers with weak muscle strength can work, and the fixed shaft is firmly fixed to prevent the grinding wheel from turning away. And the balance is improved to increase the precision of the surface treatment, to prevent noise and vibration, It can improve the surface treatment quality of water, prevent processing defects, and save resources by semi-permanently by changing the outer diameter when the diameter of the grinding wheel is reduced or the outer surface is damaged. By eliminating work and sandpaper replacement, the work time and work cost are increased, which greatly improves productivity, and by adjusting the air pressure, the shape and curvature of the polished surface can be adjusted to be widely used for the surface of various shapes such as concave or convex surface. It has an effect that can be applied.

Claims (6)

Sandpaper having an outer diameter surface formed in a round band shape so as to be rubbed and rotated in contact with the object for polishing and polishing the surface of the object; The inner diameter surface of the sandpaper is pressurized with air pressure to fix the sandpaper to be detachably detachable, and is formed of an elastic material to alleviate the impact applied to the sandpaper, and the outer circumferential surface is in contact with the inner diameter surface of the sandpaper. A wheel-shaped tube whose size of the outer circumferential surface is deformed according to the air pressure of the hollow part filled with air; And It is fixed in close contact with the inner surface of the center of the tube to seal the hollow portion of the tube, an air passage is formed so that the air flows into the hollow portion, an air pressure regulator for selectively regulating the air passage is formed, in the center Rotation support means that the center hole is formed so that the rotation shaft is inserted; Polishing wheel for surface treatment, characterized in that comprises a. The method of claim 1, The tube, When the air pressure of the hollow portion is weak, the outer diameter surface is bulged, when the air pressure of the hollow portion is intermediate, the outer diameter surface is flattened, and when the air pressure of the hollow portion is strong, the cross-sectional shape so that the outer diameter surface is concave. A polishing wheel for surface treatment, characterized in that the overall "π" shape in which both ears protrude on both corners of the sealed body portion. The method of claim 1, The tube, A polishing wheel for surface treatment, characterized in that the outer layer is laminated in the order of the adhesive layer, the cushioning layer for shock absorption, the soft fabric layer for forming a cushion, the rigid fabric layer for structure from the outer diameter surface to the top layer. The method of claim 1, The rotation support means, The center hole is formed in the center of the rotation shaft is inserted, the air passage is formed therein, the air pressure regulator is connected to the air passage is installed on one side, a single (engineering plastic) sealingly inserted into the hollow of the tube Disc) bobbin of material) or double (material embedded with metal core inside plastic material); And A flat ring-shaped fixed wheel made of a metal (aluminum alloy) material which is in close contact with the tube to seal the tube and is screwed into the bobbin to press the tube; Polishing wheel for surface treatment, characterized in that comprises a. The method of claim 4, wherein Surface treatment characterized in that the sealing grooves are engaged with the sealing projections formed inside the tube, respectively, on the left and right side surfaces of the bobbin, and the sealing grooves are engaged with the sealing projections of the fixed wheel, respectively, on the left and right sides of the tube. Polishing wheel. The method of claim 4, wherein The screw to be assembled to the fixed wheel and the bobbin is a grinding wheel for surface treatment, characterized in that the screw head recessed screw recessed screw head in the screw head groove so that the screw head does not protrude outward.