JPH1110539A - Polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To collect abrasive powder abraded by an abrasive belt without almost remaining in a main body case by a vacuum cleaner by providing an abrasive powder guide member in the peripheral edge of an abrasive powder suction opening provided in a part positioned above the driven roller side on the upper surface of the body case. SOLUTION: A driving roller 2 has a part projected outward from the bottom opening 6b of a body case 6. A driven roller 4 is positioned inside the bottom opening 6b of the main body case 2. A polishing device 1 is installed in a stable state on the surface of a member to be polished by a support roller 8 and a driving roller 2, and the whole of the lateral width of an abrasive belt 5 is uniformly brought into contact with the surface of the member to be polished. Further an abrasive powder guide member 18 is fitted to the peripheral edge of the abrasive powder suction opening. Thus, the abrasive powder abraded by the abrasive belt 5 is sucked in an abrasive powder suction opening which is elongated and increased in its suction width, so that the abrasive powder little remains in the body case 6 to be collected in a vacuum cleaner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus suitable for polishing a surface of a member to be polished such as a handrail of an escalator.

[0002]

2. Description of the Related Art Generally, as a polishing apparatus for polishing the surface of a metal plate such as stainless steel, as shown in FIG. 8, a polishing roller wound around a large-diameter driving roller 100 and a small-diameter driven roller 101 is used. The belt 102 is
The polishing belt 102 is rotated by rotating the
Has been known in such a manner as to make rotational contact with the surface of a metal plate. In the polishing apparatus shown in FIG. 8, a cover 104 for preventing the abrasive powder from being scattered, which is provided above the driving roller 100 and the driven roller 101, and the driving roller 100
And a grasping member 106 provided integrally with a transmission mechanism 105 for transmitting the rotational force of the electric motor 103.

[0003]

In the above conventional example, there is a disadvantage that the polishing powder polished by the polishing belt 102 remains on the surface of the metal plate and the polishing powder scatters around. Met.

Therefore, the polishing belt 102, the driving roller 100 and the driven roller 101 are accommodated in a main body case having an abrasive powder suction opening communicating with the vacuum cleaner.
A type in which the polishing powder polished by the polishing belt 102 is collected from the polishing powder suction opening toward the vacuum cleaner has been developed.

[0005] However, in the above-described developing device, even if the vacuum cleaner is operated to suck the abrasive powder from the abrasive powder suction opening toward the vacuum cleaner, the abrasive powder smoothly enters the abrasive powder suction opening. There was a drawback that it was not sucked and almost remained in the body case.

SUMMARY OF THE INVENTION An object of the present invention is to provide a polishing apparatus which can solve the above-mentioned drawbacks and can collect a polishing powder polished by a polishing belt with a vacuum cleaner without leaving the powder in a main body case. .

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a polishing apparatus for polishing a surface of a member to be polished by rotatingly contacting a polishing belt with the member to be polished. An electric motor, a driven roller disposed horizontally away from the driving roller, a polishing belt wound around the driven roller and the driving roller, the polishing belt, the driving roller and the driving roller. A main body case having a bottom opening for accommodating the driving roller, and a polishing powder suction opening provided in a portion located on the upper surface of the main body case and above the driven roller side, and polishing the periphery of the polishing powder suction opening. This is achieved by providing a powder guiding member.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

1 to 4, a polishing apparatus 1 includes a driving roller 2, an electric motor 3 serving as a driving source of the driving roller 2, and a driven roller installed at a position horizontally separated from the driving roller 2. 4, a polishing belt 5 wound around the driven roller 4 and the driving roller 2, and a main body case 6 for accommodating the polishing belt 5 and the driving roller 2 and the driven roller 4.

The main body case 6 is provided with a suction pipe 7 on its upper surface 6a and a support roller 8 on its side surface 6e. On the upper surface 6a side of the main body case 6, the electric motor 3 is arranged. A transmission mechanism 9 for transmitting the rotational force of the electric motor 3 to the drive roller 2 and an adjustment knob 10 for adjusting the mounting position of the driven roller 4 are mounted on the main body case 6.

A lid 12 is provided on one side surface of the main body case 6 by a hinge 11 so as to be freely opened and closed. Lid 12
Is attached to a locking piece 13 provided on a side surface 12a of the lid 12,
The closed state is achieved by locking the locking fittings 14 provided on the main body case 6, and the opened state is formed by removing the locking fittings 14 from the locking pieces 13 and rotating the lid 12 upward.

On the upper surface side of the main body case 6, there is provided a grasping member 15 which can be gripped by one hand. The grasping member 15 is located on the opposite side of the suction pipe 7 as shown in FIGS. As shown in FIG. 1, the suction pipe 7 has a shape bent substantially in a U shape, and has a handle function as a thickness that can be gripped by the other hand.

The driving roller 2 is made of sponge,
As shown in FIG. 1 and FIG.
Partially protrudes outward from b. Driven roller 4
Are located more inward than the bottom opening 6b of the main body case 2. The outer diameter of the driven roller 4 is set to about の of the outer diameter of the driving roller 2. The support roller 8 is made of rubber and positioned outside the bottom opening 6 b of the main body case 6. The polishing apparatus 1 is installed in a stable state on the surface of the member A to be polished by the support roller 8 and the driving roller 2, and the entire width of the polishing belt 5 is uniformly contacted with the surface of the member A. It is.

As shown in FIG. 7, a suction hose 17 of a vacuum cleaner 16 is detachably connected to the suction pipe 7. The suction pipe 7 is made of a rigid body such as a metal pipe.
As shown in the figure, the main body case 6 communicates with the abrasive powder suction opening 6c. As shown in FIG. 6, the polishing powder suction opening 6c has an elongated shape, and a suction pipe 7 is attached at a position substantially at the center of the polishing powder suction opening 6c.

As shown in FIGS. 4 and 5, an abrasive powder guide member 18 is attached to the periphery of the abrasive powder suction opening 6c with an adhesive or the like. The polishing powder guide member 18 is made of a synthetic resin plate. Suction pipe 7 and body case 6
A swelling portion 19 swelling on the upper surface of the main body case 6 is formed between the polishing powder suction opening 6c and the polishing powder suction opening 6c.

The driven roller 4 is attached to the main body case 6 so that the distance L between the driven roller 4 and the driven roller 4 can be changed. An adjustment knob 10 for adjusting the mounting position of the driven roller 4 is provided on the other side surface 6 d of the main body case 6 facing the lid 12. When the adjustment knob 10 is loosened, the driven roller 4 becomes movable in the horizontal direction.
When driven, the driven roller 4 is fixed at an arbitrary position. On the other side 6d of the main body case 6,
A transmission mechanism 9 for transmitting the rotational force of the electric motor 3 to the drive roller 2 is provided. The transmission mechanism unit 9 is configured to rotate the drive roller 2 by the electric motor 3 by a gear mechanism and a belt. The speed of the electric motor 3 can be changed in a plurality of stages. The electric motor 3 is connected to a power cord 20 having an outlet at the end.

As shown in FIG. 4, the polishing belt 5 is opened by opening the lid 12 and loosening the adjustment knob 10 to move the driven roller 4 to the driving roller 2 side. 2 and the driven roller 4 can be removed. Once the new polishing belt has been wound around the driving roller 2 and the driven roller 4, the driven roller 4 is moved away from the driving roller 2 and the adjustment knob 10 is tightened to apply the new polishing belt to an appropriate tension. Is attached to the driving roller 2 and the driven roller 4 while holding the roller.

An airtight packing is provided at a contact portion between the lid 12 and the main body case 6. This airtight packing is provided on either the lid 12 or the main body case 6. As shown in FIG. 2, the suction pipe 7 extends outward from the electric motor 3. When the suction pipe 7 is gripped with one hand and the gripping member 15 is gripped with the other hand, with the suction hose 17 attached to the suction pipe 7, the suction hose 17 and the electric motor 3 The length is set so that the polishing apparatus 1 can be operated without being disturbed by the above.

When the surface of the handrail 21 of the escalator is polished using the polishing apparatus 1, as shown in FIG.
The polishing apparatus 1 is installed below the escalator. In the case of a rubber product such as the handrail 21 as the member to be polished, the rotation speed of the drive roller 2 and the like are set so that the peripheral speed of the polishing belt 5 is about 1220 m / min.
The polishing belt 5 is set to rotate in one direction only in the direction of arrow P.

According to the polishing apparatus 1 of the present embodiment, the following effects can be obtained.

(1) The abrasive powder polished by the abrasive belt 5 is smoothly sucked into the abrasive powder suction opening 6c by the abrasive powder guide member 18, and the abrasive powder suction opening 6c is elongated to increase the suction width. As a result, the dust is collected in the vacuum cleaner 16 without remaining in the main body case 6.

(2) Lid 1 provided on the side of main body case 6
By opening / closing 2 and operating the adjustment knob 10, the conversion operation of the polishing belt 5 can be performed on the side surface of the main body case 6.

(3) The grasping member 15 is held by one hand of the worker.
By holding the suction pipe 7 with the other hand of the operator, the polishing apparatus 1 is stably
Since it can be installed on the upper side, it is possible to smoothly perform a polishing operation and a dust collecting operation of polishing powder generated by the polishing operation. In particular, since the suction pipe 7 also serving as a handle extends greatly outside the main body case 6 and the electric motor 3, an operator who operates the polishing apparatus 1 while holding the grasping member 15 and the suction pipe 7 is required. The polishing operation can be performed without being disturbed by the suction hose 17.

(4) A constant gap G is maintained between the bottom opening 6b of the main body case 6 and the member A to be polished by the support roller 8 and the driving roller 2 as shown in FIG. Since a strong suction force is obtained by the cleaner 16, most of the polishing powder generated by the rotation of the polishing belt 5 can be moved into the suction pipe 7.

[0025]

As described above, according to the present invention, the abrasive powder generated by the rotation of the abrasive belt is sucked into the abrasive powder suction opening by the abrasive powder guide member and hardly remains in the main body case. A polishing apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a top view showing an embodiment of the present invention.

FIG. 3 is a side view showing an embodiment of the present invention.

FIG. 4 is a front view showing the embodiment of the present invention in a state where a lid is opened.

FIG. 5 is a longitudinal sectional view of an abrasive powder suction opening showing one embodiment of the present invention.

FIG. 6 is a bottom view of an abrasive powder suction opening showing one embodiment of the present invention.

FIG. 7 is a polishing work state diagram showing one embodiment of the present invention.

FIG. 8 is an external perspective view of a main part showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polishing device 2 Drive roller 3 Electric motor 4 Driven roller 5 Polishing belt 6 Main body case 7 Suction pipe 8 Support roller 9 Transmission mechanism part 10 Adjustment knob 11 Hinge 12 Lid 13 Locking piece 14 Locking fixture 15 Grip member

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tokuji Tamaru 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building Systems Co., Ltd.

Claims (2)

[Claims] 1. A polishing apparatus for polishing a surface of a member to be polished by bringing a polishing belt into rotary contact with the member to be polished, comprising: a driving roller; an electric motor serving as a driving source for the driving roller; A driven roller installed at a position distant in the horizontal direction, a polishing belt wound around the driven roller and the driving roller, and a bottom opening for housing the polishing belt and the driving roller and the driven roller. A main body case, an abrasive powder suction opening is provided in a portion located above the driven roller on the upper surface of the main body case, and an abrasive powder guide member is provided on a periphery of the abrasive powder suction opening. Characteristic polishing equipment. 2. A polishing machine according to claim 1, wherein said polishing powder suction opening is elongated, and a suction pipe to which a suction hose of a vacuum cleaner is connected is fixed substantially at the center of said opening. apparatus.