JPH09277154A - Method of polishing for elastic member and polishing device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To polish, without generating surface irregularity, an elastic member which is used as a top surface member for an artificial marble sink and is constituted of synthetic resin which may have plastic deformation with a cylindrical polishing roller or the like with its deformation corrected and an influence of a level difference in a conveying surface absorbed. SOLUTION: A work 1 is loaded onto a conveying base 14 in a conveying device 11 on the upstream of a conveying direction X, the conveying base 14 is moved by driving a conveying chain 15, the work 1 is fed to the bottom of a polishing puff 10 sequentially from the front end side to polish its surface. The work 1 is pushed upward by a spring body 17 to be pressed against the polishing puff 10 and pushed in the opposite direction of a pressure-energizing direction by a pair of pressing rollers 18, 18 which are positioned at both sides of the polishing puff 10, so as to be ground with a deforming behavior corrected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses an elastic member, such as a sink top surface member, such as an artificial marble, which may have plastic deformation, and grinds it uniformly with a cylindrical polishing roller or buff. Polishing method and polishing apparatus.

[0002]

2. Description of the Related Art In the conventional polishing method and apparatus of this kind, a work is placed directly on a flat carrier of a carrier, for example, while being conveyed horizontally from above. Polishing by pressing a polishing roller or buff.

However, as in the case of a sink top surface member 1 (hereinafter referred to as a work) of artificial marble made of synthetic resin or the like shown in FIG. 3, both longitudinal edges 2 and 2 are bent, or a sink is provided at the central portion in the longitudinal direction. In the case of a member with holes 3, for example, undulations, waviness,
Plastic deformation such as unevenness may occur. When the top surface 1a of the work 1 is polished by a cylindrical polishing buff or the like, the deformation of the work 1 has a great influence on the cut amount of the polishing buff, and there is a phenomenon that a convex portion can be scraped but a concave portion cannot be shaved. Had occurred. Further, if the level of the transport surface of the transport device is slightly inclined, or if there are transport positions with different levels when a plurality of transport devices are connected and used, polishing unevenness occurs on the polished top surface 1a. It was the cause.

The present invention has been made in view of such conventional problems, and it is possible to correct the deformation which may exist on the polishing surface of the work and to absorb the influence of the level error of the conveying surface. Thus, an object of the present invention is to provide a polishing method and a polishing apparatus that enable uniform flat polishing.

[0005]

According to a first aspect of the present invention, there is provided a method for polishing an elastic member having plastic deformation, in order to achieve the above object, a substantially flat elastic member having a plastic deformation portion is processed. And a method of polishing one surface of the work with a cylindrical polishing member while transporting the work, wherein the work is at least directly below the polishing member and upstream and downstream of the site immediately below in the transport direction. Is urged toward the polishing member side in the vicinity of the side, and polishing is performed while pressing the upstream side and the downstream side vicinity from the polishing member side in the direction opposite to the pressing urging direction.

In order to achieve the above object, the polishing apparatus for elastic members having plastic deformation according to the present invention has a substantially flat elastic member which may have a plastic deformation portion as a processing object. A device for polishing a surface of a work as a work while transporting the work with a cylindrical polishing member, the transfer device mounting the work and transferring the work in a predetermined direction, and a device attached to the transfer device. And a plurality of urging means for urging and pressing the work toward the polishing member while moving together with the conveying device, and a pressing urging force by the urging means in the vicinity of the upstream side and the downstream side of the polishing member. And a pair of rotatable pressing rollers for pressing the work.

In the polishing apparatus for elastic members having plastic deformation according to the third aspect of the present invention, the urging means forms a matrix at predetermined intervals in the conveying direction of the work and the direction orthogonal to the conveying direction. A plurality of elastic bodies arranged in a
The pressing roller is movable along the pressing and urging direction of the pressing means.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a method for polishing an elastic member having plastic deformation and a polishing apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view (A) and a front sectional view (B) showing an embodiment of a polishing device for an elastic member having plastic deformation according to the present invention, and FIG. 2 is an enlarged front sectional view thereof. It mainly comprises a cylindrical polishing buff 10, a conveying device 11 and a pair of straightening devices 12, 12. The rotary drive device for the polishing buff 10 is not shown.

The transfer device 11 includes a pair of transfer guides 13,
A plurality of transfer bases 14 provided with a predetermined interval between the transfer bases 13.
... and a pair of driving transport chains 15 and 15 for connecting to all of these transport bases 14 and moving the transport guide 13, and recesses 16 on each transport base 14.
··························· s a spring body 17 having a predetermined interval fixed therein, a lower end fixed and an upper end protruding from the recess 16, and a drive device (not shown) for the transport chain 15. The plurality of spring bodies 17 are arranged in a matrix at predetermined intervals in the transport direction of the work 1 (direction of arrow X in the figure) and the longitudinal direction of the transport base 14 (direction of arrow Y in the figure) orthogonal to the transport direction X. Has become.

Each of the straightening devices 12 has a pressing roller 18 having a diameter smaller than that of the polishing buff 10, bearings 19 and 19 rotatably supporting both ends of the pressing roller 18, and a vertical movement of the bearing 19 (direction of arrow Z in the drawing). The pressing rollers 18 and 18 are arranged at positions upstream and downstream of the position immediately below the polishing buff 10 (polishing position) in the transport direction X. The pressing roller 18 is formed by winding or baking neoprene rubber or urethane rubber on a highly rigid material such as metal so that the surface of the work 1 is not scratched (the thickness of the rubber is, for example, about 1).
~ 2 mm) is suitable. Further, the drive supporting device 20 does not simply support the pressing roller 18 by fixing the position but supports the pressing roller 18 so as to be vertically movable in the Z direction. Therefore, as the drive support device 20, for example, a hydraulic cylinder, a pneumatic cylinder, or the like can be adopted.

Next, a method of polishing the surface 1a of the work 1 such as the sink top surface member of the artificial marble using the above-mentioned polishing apparatus will be described.

First, the work 1 is placed on the transfer base 14 of the transfer device 11 at a position away from the polishing buff 10 in the transfer direction X toward the upstream side. At this time, the work 1 is the spring body 17
As evenly as possible (upward in the Z direction in the figure)
So that it can be pushed up. In the illustrated example, the side edge 2 on the one end side in the Y direction of the work is brought into contact with the outer surface of the transport base 14 for positioning in the Y direction. In the positioning in the X direction, since the transport base 14 and the spring bodies 17 are arranged in a matrix, even if they are appropriately placed, they are almost uniformly pushed up and urged.

Next, the carrier chain 15 is driven to move the carrier base 14 in the carrier direction X, and the work 1 is sequentially fed from the tip side to the lower side of the polishing buff 10 to work 1.
The surface 1a is polished. At this time, the portion of the work 1 located between the pair of pressing rollers 18, 18 is the spring body 1.
7 is pushed upward by 7 to be pressed and urged against the polishing buff 10, and the pressing rollers 18 and 18 are opposite to the pressing urging direction (upward direction in the arrow Z direction) (downward direction in the arrow Z direction). It is pressed down and polished.

Even when the work 1 to be polished has side plates at both ends, it may interfere with the pressing roller 18 (particularly, the pressing roller on the upstream side in the carrying direction X) at the time of carrying. The pressing roller 18 is supported by the device 20 so as to be movable up and down, and the pressing roller 18 operates so as to flexibly move over an interfering object, so that there is no obstacle to polishing.

[0015]

As described above, the polishing method and the polishing apparatus according to the present invention polish a substantially flat elastic member, which may have a plastically deformed portion, as a workpiece to be machined by a cylindrical polishing member. However, the work is pressed and urged toward the polishing member side at least in the region immediately below the polishing member and in the vicinity of the upstream side and the downstream side of the region directly below in the transport direction,
Further, since the workpieces located in the vicinity of the upstream side and the downstream side of the polishing member are pressed from the polishing member side in the opposite direction to the biasing direction and polished, the sink top surface member of the artificial marble made of synthetic resin or the like. It becomes possible to perform surface polishing of elastic members that may have plastic deformation such as evenly while correcting the deformation relatively easily, and in the vicinity of the polishing member, the position of the work piece relative to the polishing member can be accurately and naturally. Since the positioning is performed, it is not necessary to set the conveyance level strictly, and the allowable value can be roughly set.

[Brief description of drawings]

FIG. 1 is a schematic side view (A) and a front sectional view (B) showing an embodiment of an elastic member polishing apparatus having plastic deformation according to the present invention.

FIG. 2 is an enlarged front sectional view of the same.

FIG. 3 is a plan view (A) and a side view (B) showing an example of a work to be polished.

[Explanation of symbols]

 1 Work 1a Work surface (polishing surface) 10 Polishing buff 11 Conveying device 12 Straightening device 13 Conveying guide 14 Conveying base 15 Conveying chain 17 Spring body 18 Holding roller 19 Bearing 20 Drive support device X Conveying direction of workpiece Y Orthogonal to conveying direction Direction

Claims (3)

[Claims] 1. A method of polishing a substantially flat elastic member which may have a plastically deformed portion as a workpiece to be processed, and polishing one surface of the workpiece by a cylindrical polishing member while transporting the workpiece. The work is pressed and urged toward the polishing member at least at a position immediately below the polishing member and at a position near the upstream side and the downstream side of the position directly below the polishing member in the transport direction, and the vicinity of the upstream side and the downstream side are described above. A method for polishing an elastic member, comprising polishing while pressing from a polishing member side in a direction opposite to the pressing biasing direction. 2. A device for polishing a substantially flat elastic member which may have a plastically deformed portion as a workpiece to be machined, and polishing one surface of the workpiece by a cylindrical polishing member while transporting the workpiece. A carrying device for placing a work thereon and carrying it in a predetermined direction; a plurality of biasing means attached to the carrying device for pushing the work toward the polishing member while moving together with the carrying device; An apparatus for polishing an elastic member, comprising: a pair of rotatable pressing rollers that press the work against the pressing force of the pressing means in the vicinity of the upstream side and the downstream side of the polishing member. 3. The pressing means is a plurality of elastic bodies arranged in a matrix at predetermined intervals in a conveying direction of the work and a direction orthogonal to the conveying direction, and the pressing roller is constituted by the pressing means. The elastic member polishing apparatus according to claim 2, wherein the polishing apparatus is movable along the pressing biasing direction.