JP2003225860A - Method for polishing peripheral surface of roller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for polishing the peripheral surface of a roller with designated outer diameter precision. <P>SOLUTION: This invention relates to a method for polishing the peripheral surface 14A of the roller 10 to a designated diameter dimension by supporting both ends 12, 13 of the roller 10 and rotating the roller 10. One end is chucked by a chucking means 6 and is rotatably supported, and another end is closely fitted to a fitting means 19 and is rotatably supported. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for polishing a roller peripheral surface, and more particularly to a method for polishing a roller peripheral surface, which is convenient for forming the roller peripheral surface to have a predetermined outer diameter dimensional accuracy.

[0002]

2. Description of the Related Art Conventionally, for example, as a paper feeding roller, a roller having a constant outer diameter and a good dimensional accuracy is used in order to feed the paper.

[0003]

However, as shown in FIG. 9, in the conventional polishing of the peripheral surface of the roller 100, both ends of both roller shafts 101 and 102 are supported by the supporting means 103 and 104 and rotated by the motor 105. The roller peripheral surface 10
Since 0A is polished, the dimensional accuracy of the outer diameter of the finishing roller is difficult to obtain, and there is a problem that many defective products are produced. In FIG. 9, 106 is a grindstone for polishing.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and to provide a polishing method for a peripheral surface of a roller which can achieve a predetermined outer diameter dimensional accuracy.

[0005]

In order to solve the above-mentioned problems, the invention of claim 1 is a method of supporting both ends of a roller to rotate them and polishing the peripheral surface of the roller to a predetermined outer diameter. Then, one end is gripped by the chuck means to be rotatably supported, and the other end is fitted to the tight fitting means to be rotatably supported.

In the first aspect of the present invention, one end of the roller is supported by the chuck means, and the other end of the roller is inserted and supported by the fitting means. The roller is rotated by the rotation drive of the chuck means. Since the other end side of the roller is supported and rotated by the close fitting means, it is easy to obtain the outer diameter dimensional accuracy of the roller in polishing the peripheral surface of the roller, unlike the conventional method in which the end surface is driven and rotated.

The invention of claim 2 for solving the above-mentioned problems is characterized in that, in the invention of claim 1, the fitting means has a fitting margin up to an actual bearing position or a position close thereto.

According to the second aspect of the present invention, it is possible to obtain a roller having a higher outer diameter dimension accuracy.

According to a third aspect of the invention for solving the above-mentioned problems, in the invention of the first or second aspect, the roller has press-fitting support shafts at one end and the other end on both sides of the cylindrical body. It is characterized by being formed.

In the third aspect, the roller may be a light roller. Other operational effects are the same as those of claim 1 or claim 2.

According to a fourth aspect of the invention for solving the above-mentioned problems, in the invention according to the first aspect, the second aspect or the third aspect, the roller has a coating layer on its peripheral surface, and the peripheral surface of the coating layer is It is characterized by being polished.

In the third aspect, the roller peripheral surface has a coating layer. The covering layer may have a predetermined outer diameter. Other functions and effects are the same as those of claim 1, claim 2 or claim 3.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to FIGS. First, an outline of an apparatus used for polishing the roller peripheral surface will be described. As shown in Figure 1,
On the horizontal plane 1A of the base bed 1, the roller shafts 12, 13
The chuck means 6 for supporting the end portion of and the fitting means (fitting member 19) are installed.

The chuck means 6 is connected to the drive shaft 5 of the speed reducer 4 of the motor 3 and is rotatable. The chuck means 6 has a plurality of divided pieces 6A at the tip thereof.
The chuck ring 7 at the tip can be opened and closed by screwing the stop ring 8 onto the threaded portion 6B on the outer circumference of A to 6A, and the roller shaft 12 inserted into the chuck port 7 in the opened state is screwed by the stop ring 8. Fixed. The chuck portion of the chuck means 6 is centered parallel to the horizontal plane 1A of the base bed 1. The chuck means 6 is movable left and right in FIG. 1, and when the roller 10 is rotated, the chuck means 6 is preliminarily moved and held leftward. Further, when the polishing of the roller 10 is completed, the roller 10 can be removed by returning it to the right if necessary.

The fitting means (fitting member 19) is removably inserted into the fixing member 16 mounted on the horizontal surface 1A of the base bed 1 and is rotatable. As shown in FIGS. 1, 3, 4, and 5, the fitting member 19 serving as a fitting means has a rotation base 17 rotatable with respect to the fixed member 16, and a receiving hole 18 of the rotation base 17. The insertion portion 19 of the fitting member 19
A is inserted so that it can be inserted and removed. A fitting hole 20 for the roller shaft 13 is provided on the tip side of the fitting member 19. Fitting hole 2
The depth of 0, that is, the fitting margin d (see FIG. 3) for fitting the end portion of the roller shaft 13 is preferably at or near the bearing position at which the roller shaft 13 is actually bearing. With respect to the roller shaft 13, the fitting hole 20 has a horizontal surface 1A of the base bed 1.
The roller shaft 13 is formed so as to be centered in parallel with and the roller shaft 13 can be closely inserted and removed. In addition, the chuck hole 7 of the chuck means 6 in the closed state and the fitting hole 2 of the fitting member 19 inserted into the receiving hole 18 of the rotation base 17 rotated by the fixed member 16.
0 is formed coaxially.

On the other hand, the roller 10, as shown in FIGS. 1 and 2, has a roller shaft 12 having circular stopper members 12A, 13A at both ends of a cylindrical body 11 made of stainless steel and having a constant outer diameter and a predetermined length. 13 is press-fitted with the roller shafts 12 and 13 facing outward, and a coating layer 14 of rubber, resin or the like is formed on the peripheral surface of the cylindrical body 11. The roller shaft 1
2 and 13 are formed at the center positions of the circular stop members 12A and 13A, and the circular stop members 12A and 13A are formed on the respective roller shafts 1.
Although 2 and 13 are press-fitted so that they are on the same axis, there are many cases where they actually deviate.

When polishing the peripheral surface 14A of the roller, as shown in FIG.
As shown in FIG.
After being inserted and supported in the fitting hole 20 and the chuck opening 7 of the chuck means 6, the motor 3 is operated and the roller 10 is rotated through the speed reducer 4. Next, grindstone (polishing grindstone) 22
Is rotated by the motor 23 to rotate the roller peripheral surface 14A.
Contact with. The grindstone 22 is reciprocated in parallel to the horizontal plane 1A of the base bed 1. The roller peripheral surface 14A is polished to have a constant outer diameter. The roller 10 that has finished polishing is removed from the fitting member 19 and the chuck means 6.

As shown in FIG. 6, the roller 10 whose roller peripheral surface 14A is polished has a length L of 480.0 mm and an outer diameter R30.0 mm. This roller 10 is a roller peripheral surface 1 when both roller shafts 12 and 13 are rotated according to the usage condition.
An outer diameter accuracy of 4A is measured. As shown in FIG. 6, the polished roller 10 has a predetermined position A, B on the roller shafts 12, 13.
The bearing is rotated at. The actual bearing positions are C and D. The outer diameter of the roller 10 during rotation is measured as shown in FIG.
In, the measurement was performed with laser light at the E, F, and G positions using a laser micrometer. Incidentally, E and F are positions 10 mm from the end of the roller 10, and G is the center position of the roller 10.

The outer diameter measurement results at the E, F and G3 positions on the roller peripheral surface 14A are shown in the following table.

As is clear from the table, the roller 10 of the present embodiment has a smaller outer diameter deflection than the comparative example, and it is recognized that the outer peripheral surface 14A of the roller 10 has good outer diameter dimensional accuracy. Therefore, if the roller 10 of the present embodiment is used as a paper feeding roller, good paper feeding can be performed.

The above-mentioned roller 10 is provided on both ends of a cylindrical body 11 with circular stopper members 12A and 13A, and roller shaft 1
The roller 10 has a structure in which 2, 13 are attached. Like the roller 25 shown in FIGS. 7 and 8, the roller 10 has a cylindrical portion 26 and roller shafts 27, 28 integrally formed of stainless steel or aluminum, The structure may be such that the coating layer 14 is formed on the outer periphery of the columnar portion 26 and does not have a hollow portion.

[0022]

According to the present invention, the outer peripheral surface of the roller can have a predetermined outer diameter dimensional accuracy.

[Brief description of drawings]

FIG. 1 is a process diagram showing a method for polishing a roller peripheral surface according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged cross-sectional view of a fitting member.

FIG. 4 is a view on arrow X in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a diagram showing a measurement position of outer diameter dimensional accuracy of a roller.

FIG. 7 is a partially cutaway side view showing another example of the roller structure.

8 is a sectional view taken along line IIX-IIX of FIG.

FIG. 9 is a process drawing showing a conventional method for polishing a roller peripheral surface.

[Explanation of symbols]

6 Chuck means 7 Chuck mouth 10,25 roller 12, 13, 27, 28 Roller shaft 14 coating layer 14A Roller peripheral surface 19 Fitting member 20 fitting holes 22 whetstone

Claims (4)

[Claims] 1. A method for supporting and rotating both ends of a roller to grind a peripheral surface of the roller to a predetermined outer diameter, wherein one end is gripped by a chuck means and rotatably supported, and the other end. A method for polishing a roller peripheral surface, characterized in that the portion is rotatably supported by being fitted to a tight fitting means. 2. The method for polishing a roller peripheral surface according to claim 1, wherein the fitting means has a fitting margin up to an actual bearing position or a position close to the actual bearing position. 3. The roller is formed by press-fitting support shafts at one end and the other end on both sides of a cylindrical body.
Alternatively, the method of polishing a roller peripheral surface according to claim 2. 4. The method for polishing a roller peripheral surface according to claim 1, wherein the roller has a coating layer on the peripheral surface, and the peripheral surface of the coating layer is polished.