JPH0683261U - Rotating buff - Google Patents

Abstract

(57) [Summary] [Construction] In a rotating buff 11 formed by laminating a plurality of circular base fabrics 12, the base fabric 12 is made of a cotton nonwoven fabric formed by interlacing cotton fibers without using a binder. Become. [Effect] Since the polishing conditions are uniform over the entire circumference without any looseness of the cotton fibers, a uniform polishing finish is possible. Since the cotton fiber has heat resistance, it will not melt even if it generates heat due to friction, and the polishing conditions will be uniform over the entire circumference.
From this point as well, uniform polishing can be achieved. Since the entangled cotton fibers are much thinner than the twisted yarn of the woven cloth, finely ground polishing is possible. When oil-based abrasives are adsorbed and used, the gaps between the entangled cotton fibers are uniform over the entire area of the base fabric, so the oil-based abrasives are evenly adsorbed, resulting in a uniform abrasive finish. It will be possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotating buff. The rotating buff is used by pressing it against the surface of an industrial product such as metal or wood while rotating, and polishes these surfaces. There are buff wheels and cotton rolls in this rotating buff.

[0002]

[Prior art]

 FIG. 4 shows a conventional rotary buff (buff wheel). The rotary buff 1 shown in the figure has the cotton woven fabric 2 shown in FIG. 5 having a circular hole cut in a circle with a diameter of about 100 to 350 mm. A plurality of sheets are stacked so that the thickness is about 10 to 30 mm.

The rotary buff 1 is sandwiched from both sides in the vicinity of the central portion thereof with pressure plates 3 and 3 and is inserted into a rotary shaft 4 of a buffing machine, and a nut 6 is tightened between the pressure plates 3 and 3 with a washer 5. Fixed to the buffing board.

When performing rough polishing with the rotating buff 1, coarse grains are used by adhering to the rotating buff 1 via a binder such as glue, and when performing middle polishing or finish polishing. In this case, the cotton woven cloth 2 is coated with a buffing abrasive made of a mixture of abrasive powder, fatty acid, mineral oil and the like, if necessary.

[0005]

[Problems to be solved by the device]

 However, as shown in FIG. 5, the cotton woven fabric 2 cut into the disk shape has four short portions of the weaving yarn. Therefore, in these portions, the short weaving yarns 2a, 2a ... It will easily come loose, resulting in a soft portion where the thread is loose and a hard portion where the thread is not loose. As a result, in the conventional rotary buff 1, the soft parts and the hard parts of the cotton woven fabrics 2, 2, ... Alternately contact the surface of the workpiece or the like, which makes uniform polishing difficult. There was a problem.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a rotary buff (hereinafter, referred to as “the present buff” that can perform uniform polishing with little deviation). That is)).

[0007]

[Means for Solving the Problems]

 The present invention for achieving the above object is a rotary buff in which a plurality of circular base fabrics are superposed, and the base fabric is made of a cotton non-woven fabric formed by interlacing cotton fibers without using a binder. It is characterized by

[0008]

[Action]

 In the proposed buff, the cotton fibers forming the base cloth have no direction such as warp, weft, and diagonal, and are randomly entangled in the vertical and horizontal directions, so that the cotton fibers are not easily distorted and all polishing conditions are satisfied. Make uniform over the circumference. Furthermore, since the buff of the present invention uses a base fabric in which cotton fibers, which are very fine as compared with twisted yarn, are entangled, fine-grained polishing is possible.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments and can be appropriately modified and implemented without departing from the scope of the invention. Is.

(First Embodiment) FIG. 1 is a perspective view showing a buff wheel 11 in a first embodiment of the present buff, and FIG. 2 is a plan view showing a base cloth 12 of the buff wheel 11.

In the buffing wheel 11, the base cloth 12 is produced by cutting a cotton non-woven fabric having a basis weight of 100 to 300 g / m ² which is formed by interlacing cotton fibers without using a binder into a circular shape, and has a through hole at the center. 12a is provided. This buffing wheel 11 has substantially the same structure as the conventional buffing wheel 1 (FIG. 4) described above, except that the above-mentioned cotton nonwoven fabric is used as the base cloth 12. That is, the buff wheel 11 has a plurality of base cloths 12, 12, ... It is formed by tightening each other.

As the cotton non-woven fabric that forms the base fabric 12, after removing impurities and short fibers of the cotton fiber, it is formed into a web, and each fiber in this web is entangled by a high-pressure nozzle water flow (hydroentanglement method). ) Is used as the nonwoven fabric.The cotton nonwoven fabric produced by the hydroentangling method has three-dimensionally entangled fibers in the upper, lower, left, and right directions, so even though no binder is used, it has sufficient strength as a base fabric for polishing. Express.

When it is necessary to degrease the base fabric 12, the cotton non-woven fabric may be degreased using an alkali such as caustic soda, or a non-woven fabric made from the previously exposed cotton fiber may be used.

As a means for joining a plurality of base fabrics 12, 12, ..., A method of sandwiching and joining the central portions of the base fabrics 12, 12 ,. The vicinity of the insertion hole 12a of the base cloth 12 or the entire base cloth 12 may be sewn in a concentric shape, a spiral shape, or a grid shape (not shown).

The rotary buff 11 configured as described above is attached to the buff board by inserting the rotary shaft 4 of the buff board into the rotary buff 11 and screwing the nut 6 into the insertion portion of the rotary shaft 4.

Since the cotton fibers in the cotton non-woven fabric forming the base fabric 12 are entangled with each other, the rotating buff 11 does not easily distort and the polishing condition is uniform over the entire circumference. Become.

Further, since the rotary buff 11 has heat resistance to the cotton fiber, it does not melt even if it generates heat due to friction during polishing, uniform polishing conditions are always maintained, and uniform polishing finish is possible. Become.

Furthermore, since the entangled cotton fibers are very fine as compared with the twisted yarn in the woven fabric, finely ground polishing is possible.

Furthermore, when the oil-based abrasive is adsorbed and used, the entangled cotton fibers have uniform gaps between the fibers over the entire area of the base fabric 12, so that the oil-based abrasive can be absorbed. Is uniformly performed, and as a result, uniform polishing finish is possible. In particular, in the cotton nonwoven fabric produced by the hydroentangling method, the distribution of the cotton fibers is particularly uniform, so that a more uniform polishing finish is possible.

Second Embodiment FIG. 3 is a partially cutaway front view of a cotton roll as a second embodiment of the buff of the present invention. The cotton roll (rotating buff) 21 is circular and is inserted into a hollow body 23 formed by stacking a plurality of base cloths 22, 22, ... A mandrel 24, clamping plates 25, 25 inserted on both sides of the mandrel 24, and nuts 26, 26 screwed on both sides of the mandrel 24 are provided. By screwing the nuts 26, 26, both ends of the hollow body 23 are secured. It is strongly pressed by the pressing plates 25, 25 and formed into a roll shape.

The base cloth 22 is made of a cotton non-woven fabric having a basis weight of about 100 to 300 g / m ² formed by interlacing cotton fibers without using a binder.

In the cotton roll 21 thus constructed, both ends of the mandrel 24 are supported by bearings 27, 27, and the drive shaft 29 is connected to one end of the mandrel 24 via a coupling 28.

The separation distance between the cotton roll 21 and the guide roll 30 is such that the outer peripheral surface 23b of the hollow body 23 comes into contact with an object to be polished 31 such as a metal plate, wood, or glass conveyed by the guide roll 30. The surface of the object 31 to be polished is appropriately adjusted so that the surface can be polished.

[0024]

[Effect of device]

 As described above in detail, according to the buff of the present invention, the following practical effects can be obtained. Since there is no looseness of the cotton fiber yarn and the polishing conditions are uniform over the entire circumference, uniform polishing finish is possible.

Since the cotton fibers have heat resistance, they do not melt even if they generate heat due to friction, and the polishing conditions are made uniform over the entire circumference. From this point as well, uniform polishing finish is possible.

Since the entangled cotton fibers are very fine as compared with the twisted yarn of the woven cloth, fine-grained polishing is possible.

When an oil-based abrasive is adsorbed and used, the gap between the entangled cotton fibers is uniform over the entire area of the base fabric, so that the oil-based abrasive is evenly adsorbed and the result is uniform. It is possible to achieve a fine polishing finish.

[Brief description of drawings]

FIG. 1 is a perspective view of a buffing car according to a first embodiment.

FIG. 2 is a plan view of the base fabric of the buffing car according to the first embodiment.

FIG. 3 is a partially cutaway front view of a cotton roll according to a second embodiment.

FIG. 4 is a perspective view of a conventional rotating buff (buffing wheel).

FIG. 5 is a plan view of a base fabric of a conventional rotating buff (buffing wheel).

[Explanation of symbols]

 11 rotating buff (buff car) 12 base cloth 21 rotating buff (cotton roll) 22 base cloth

Claims (2)

[Scope of utility model registration request] 1. A rotating buff formed by stacking a plurality of circular base fabrics on top of each other, wherein the base fabric is made of a cotton non-woven fabric formed by interlacing cotton fibers without using a binder. Buff. 2. A cotton roll formed by stacking a plurality of circular base fabrics on top of each other, wherein the base fabric is made of a cotton non-woven fabric formed by interlacing cotton fibers without using a binder. roll.