JPH0718519Y2 - Belt type electric rust remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a polishing device for a surface of a metal tube.

[Prior Art] As a conventional technology, there is, for example, a belt-type grinder of 61-99640.

FIG. 2 is a perspective view of a belt type grinding machine of the actual development Sho 61-99640.

This belt type grinding machine uses a grinding belt 21 and a presser foot 23 to
The circular surface of the steel pipe 22 was polished by reciprocating the grinding belt 21 using the rotational force of the motor.

[Problems to be Solved by the Invention] In the conventional belt type grinding machine described above, the steel pipe is pressed by the presser and the polishing belt, and reciprocating motion is applied to the grinding belt to perform polishing. The range is limited to 180 °, and it is necessary to stop the movement each time the steel pipe moves in the axial direction and apply pressure to the retainer to slide it, and the length of the polishing surface of the polishing belt is limited. Therefore, there is a drawback that the wear is fast.

An object of the present invention is to provide a belt-type electric rust removing device that suppresses the wobbling of the polishing head in the width direction and that polishes the surface of a metal body tube that can be moved laterally easily.

[Means for Solving the Problems] The belt-type electric rust removing device of the present invention includes a support plate mounted at a right angle to a motor output shaft, in a longitudinal direction of the support plate, at a right angle to the support plate, and around an axis center. A rotatably mounted main roller, and a pair of arms and a main roller supported by the arm in parallel with the main roller so as to have a gap between the main roller and the polishing belt so as to pass therethrough; The polishing belt comprises two guide rollers that are rotatable about an axis and that are swingable about the rotation support shaft and are biased toward each other. The polishing belt passes between the main roller and each guide roller. It is most characterized by having a tip guide roller that applies tension to the polishing belt when it is stretched between the rotary drive roller and the metal body to be derusted, and that suppresses runout in the width direction of the polishing belt.

[Operation] Rotate the polishing belt on the surface of the pipe at right angles to the axial direction of the pipe, pull this device near the polishing belt until the slack disappears, and rotate the motor. The tip guide roller suppresses axial runout. The polishing belt runs, polishes the polishing surface, and can be easily moved to the side by loosening the pulling force slightly to the side, so rust removal by continuous movement is possible.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the belt type electric rust removing device of the present invention.

This belt-type electric rust removing device includes a motor 7, a rotation driving roller 1, a support plate 11, a polishing belt 8, tension rollers 2 and 3, a tip guide roller 4, and handles 10 ₁ and 10 _2. . The rotary drive roller 1 is a pulley that is attached to the output shaft of the motor 7 and is driven by the motor 7. Support plate 11 on the side of the output shaft side of the motor 7, mounted at right angles to the output shaft, an end portion closer to the motor 7 has a handle 10 _1. The polishing belt 8 is coated with a polishing material 9 on one surface and has belt joints (not shown) that can be connected to each other at both ends in the longitudinal direction, and is stretched between the rotary drive roller 1 and a metal body to be derusted. It is made endless by a belt joint and is driven by a rotary drive roller 1 when tensioned. The tension rollers 2 and 3 are rotatably supported by a holding frame mounted on the support plate 11 at right angles and at positions symmetrical with respect to the traveling direction of the polishing belt 8. The roller is biased to press the polishing belt 8 in order to strengthen the frictional contact with 1. The leading end guide roller 4 includes a main roller 5 attached to the front end portion of the support plate 11 in the longitudinal direction at a right angle to the support plate 11 and rotatably around an axis, two sets of arms, and a main roller 5. The arm is supported by the arm on the rotation support shaft of the main roller 5 in parallel with the main roller 5 so that the polishing belt 8 can pass therethrough, and is rotatable about the axis and mutually reciprocally about the rotation support shaft. The polishing belt 8 is composed of two swingable guide rollers 6 ₁ and 6 ₂ which are biased toward each other, and the polishing belt 8 has a main roller 5 and respective guide rollers 6 ₁ and 6 _2.
Rotating drive roller 1 and pipe 12 for rust removal through
When applied to the polishing belt 8, tension is applied to the polishing belt 8 and the blurring of the polishing belt 8 in the width direction is suppressed. The grip handle 10 ₂ is mounted between the housing of the motor 7 and the support plate 11 in a direction perpendicular to the handle 10 ₁ . Further, the surface of the polishing belt 8 opposite to the surface on which the abrasive material 9 is applied, the rotation driving roller 1, the tension rollers 2 and 3,
Main roller 5 of the tip guide roller 4, guide rollers 6 ₁ , 6 ₂
When rubber running is applied to each of the surfaces, the frictional force increases and the running force of the polishing belt 8 becomes stronger, which is in a preferable state.

Next, the operation of this embodiment will be described.

First, the polishing belt 8 is rotated around the pipe 12 to be rust-removed, the belt joints are connected to each other, and the device is attracted to energize the polishing belt 8 so that the polishing belt 8 is not loose. When the polishing belt 8 travels by the rotation of the motor 7 to polish the back surface of the pipe 12 and rust is removed, the force attracting this device is slightly relaxed and gradually moved in the axial direction of the pipe 12 to move the polishing belt 8. After moving by the amount corresponding to the width, the apparatus is attracted again and polishing is repeated. When polishing is completed, the belt joint of the polishing belt 8 is separated and removed from the pipe 12.

[Effects of the Invention] As described above, according to the present invention, the polishing belt whose one surface is the polishing surface is run in one direction while suppressing axial runout by the tip guide roller, and the device is pulled at hand. Since it is attached and polished, it can be moved at high speed with little vibration, and can be easily moved continuously in the lateral direction.Because the polishing surface is used evenly, the abrasion of the polishing belt will be slow and it must be replaced. This has the effect of reducing the frequency.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the belt type electric rust removing device of the present invention, and FIG. 2 is a perspective view of a belt type grinding machine of the actual open sho 61-99460. DESCRIPTION OF SYMBOLS 1 ... Rotation drive roller, 2, 3 ... Tension roller, 4 ... Tip guide roller, 5 ... Main roller, 6 ₁ , 6 ₂ ... Guide roller, 7 ... Motor, 8 ... Abrasive belt, 9 ... Abrasive material, 10 ₁ , Ten
₂ ... Handle, 11 ... Support plate, 12 ... Pipe.

Claims (1)

[Scope of utility model registration request] 1. A motor, a rotary drive roller mounted on an output shaft of the motor and driven by the motor, and a support plate mounted on a side surface of the motor on the output shaft side at a right angle to the output shaft. Abrasive is applied on one side, and belt joints that can be connected to each other at both ends in the longitudinal direction are provided. A polishing belt that is driven by a rotary drive roller when driven, and at least one tension roller that is attached to the support plate and presses the polishing belt to enhance frictional contact of the polishing belt with the rotary drive roller. In a belt type electric rust removing device, in a longitudinal direction of a support plate attached at a right angle to the output shaft of the motor, at a right angle to the support plate. And a main roller rotatably mounted around the axis and a rotation support of the main roller by the arm in parallel with the main roller so that there is a gap between the two sets of the arm and the main roller so that the polishing belt passes through. The polishing belt comprises two main rollers supported by a shaft, rotatable about an axis, and swingable around the rotary support shaft in a direction toward each other. The polishing belt is a main roller and each guide roller. A belt characterized by having a tip guide roller that applies tension to the polishing belt when it is passed between the rotary drive roller and the metal body to be derusted through the space between them, and suppresses wobbling in the width direction of the polishing belt. Type electric rust removing device.