JPH0643028B2 - Heavy polishing brush roll - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to heavy abrasive brush rolls for metal strips, and in particular to
A large number of substantially fan-shaped boards each having a plurality of polishing members having heavy polishing ability mounted in a line on the outer peripheral edge thereof are arranged in a circle around the axis of the brush roll shaft, and the polishing members are arranged in a staggered arrangement. The present invention relates to a heavy-abrasive brush roll mounted on the outer peripheral surface of the shaft in such a manner that they are densely arranged in the length direction.

In the present specification, the "heavy polishing brush roll" in the present invention refers to a brush roll having a polishing performance which is almost equal to or close to the polishing performance of a grinding wheel or a polishing disc, and the "heavy polishing brush roll" about a polishing member. "Noh" also refers to the same polishing performance. The same applies to the description in the claims.

Conventional Technology and Problems Thereof The brush roll having the above-mentioned heavy polishing performance has already been developed by the present inventor. The already developed heavy polishing brush roll is mounted on the outer peripheral surface of the shaft such that the polishing members corresponding to the polishing bristles are arranged in a plane orthogonal to the axis of the brush roll shaft around the axis. This conventional technique has not yet fully exhibited the heavy polishing performance. For more information,
It is as follows.

In order to obtain heavy polishing performance, it is substantially necessary for the polishing member of this type of brush roll to fill the polishing tip with a rod-shaped body obtained by hardening an abrasive material with a resin binder, and the tip generally has a diameter of about 2 to 10 mm. Is the diameter. Thus, even though the polishing members are arranged in a zigzag pattern along the length of the roll shaft, the density of the polishing members with a typical abrasive-containing abrasive yarn is substantially the same as the density of the bristles. The density without the upper dead space cannot be obtained. And, since the polishing members are arranged on the circumferential surface of the roll shaft in a plane orthogonal to the shaft axis, as the brush roll rotates in each example of the arrangement, the polishing tips that follow the same phase as the polishing tip to be polished are I will pass. This means that the trailing polishing tip does not work to polish the zone of polishing leakage due to the leading polishing tip.

For these reasons, in the heavy-abrasive brush roll according to the above-mentioned prior art, unevenness due to grinding streaks occurs in the metal strip. Incidentally, the grinding streak has a width approximately equal to the parallel pitch of the polishing members in the longitudinal direction of the shaft. In order to eliminate uneven polishing, it is necessary to reduce the polishing performance of the polishing members, and the heavy polishing ability cannot be fully utilized.

It is an object of the present invention to overcome the above mentioned problems of the prior art and to allow the polishing member in a heavy polishing brush roll of the type mentioned at the outset to take full advantage of its heavy polishing ability.

Means for Solving the Problems In order to achieve the above object, the present invention has the following configuration.

That is, according to the present invention, a large number of substantially fan-shaped boards in which polishing members having a heavy polishing ability are attached to the outer peripheral edge in a line,
The heavy polishing flash rolls mounted on the outer peripheral surface of the brush roll shaft in a circular arrangement around the axis of the brush roll shaft, and the polishing members are closely arranged in the lengthwise direction of the shaft in a staggered arrangement. Forming a substantially dovetail-shaped key on the base end side of the fan-shaped board, and forming a substantially dovetail-shaped key groove extending spirally in the shaft length direction on the outer peripheral surface of the shaft. The above-mentioned board is mounted on the outer peripheral surface of the shaft under the above-mentioned manner by fitting the above.

In the present invention, it is preferable that the key groove formed on the outer peripheral surface of the shaft of the plastic roll has the above-mentioned spiral shape with a twist angle corresponding to a lead of about 52,000 mm or less with a brush roll shaft having an outer diameter of 289 mm.

In the present invention, a large number of fan-shaped boards having polishing members mounted on the outer peripheral surface are mounted on the outer peripheral surface of the shaft in a predetermined manner. Forming a substantially dovetail-shaped keyway on the surface, and taking specifications by fitting the key and the keyway, as in an embodiment described later, is sufficient for the polishing member in the longitudinal direction of the shaft. Parallel density
This is because the same fan-shaped board can be applied to obtain good results.

Action Since the present invention has the above-mentioned configuration, the dense arrangement of the polishing members having the heavy polishing ability on the fan-shaped board mounted on the outer peripheral surface of the shaft of the brush roll under the above-mentioned predetermined arrangement mode is, as a whole, in the longitudinal direction of the shaft. Therefore, the spiral arrangement of the twist angle follows the spiral lead of the key groove on the outer peripheral surface of the shaft.

According to this arrangement mode, the polishing members are arranged on the same fan-shaped board, and the trailing polishing members follow the spiral arrangement in the length direction of the shaft with respect to the trajectory of the polishing members that previously polish the metal strip by the rotation of the brush roll. The uneven area will be polished. For this reason,
The polishing members in each row in the shaft radial direction on the circumferential surface of the shaft contribute to polishing the portion of the polishing leakage by the preceding polishing member by the amount corresponding to the one-sided offset region shown in the preceding figure. That is, the polishing area of each row of polishing members in the radial direction of the shaft is expanded in the length direction of the shaft as compared with the polishing area of each row of polishing members arranged in a plane circumferentially in the plane orthogonal to the shaft axis in the circumferential direction of the shaft. The unevenness due to the grinding streak found in the polishing member of the latter arrangement is eliminated,
A homogeneous polishing is obtained.

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned effects, it is possible to make full use of its heavy polishing ability by using a polishing member in a heavy polishing brush roll of the type described at the beginning. Incidentally, for example, a polishing tip having a multi-layered structure of a core and an outer layer covering the core, which is one of those having excellent heavy polishing ability, and the core has a higher polishing ability than the outer layer, , It is possible to perform uniform polishing without unevenness due to a grinding streak.

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

In the figure, reference numeral (1) indicates a polishing member having a heavy polishing ability, and the polishing member (1) has a multilayer structure of a core and an outer layer covering the core (see, for example, FIG. 1),
A core having a higher level of heavy polishing ability than the outer layer can be advantageously applied. In the polishing member having the multi-layer structure, when the polishing performance of the outer layer is 1, the polishing performance of the core is generally about 1.5 to 2.5. If the outer diameter of the outer layer is 10, the diameter of the core is about 3-8. Further, a rod-shaped polishing tip (11) obtained by hardening an abrasive with a resin binder, a metal sleeve (12) bonded to the tip end side of the base end portion of the polishing tip (11), and the base end side of the sleeve (12). The one including the elastic rod (13) having the distal end portion joined to and the fiber string processed with resin (see FIG. 1) can be advantageously applied. The metal sleeve (12) is
The base end of the polishing tip (11) is inserted into one end of the polishing tip (11), and the tip end of the elastic rod (13) is inserted into the other end of the polishing tip (11). You can combine them.

It is preferable to fix the shielding body (14) to the metal sleeve (12). When the covering body (14) is fixed, the polishing performance of the polishing member (1) is improved. The cover (14)
It is possible to advantageously apply the main body portion (14a) having an outer shape as shown in FIG. 7 in plan view. A molding of plastic such as nylon can be applied to the shielding body (14). The plastic molded body can be fixed to the metal sleeve (12) by inserting the polishing member (1) into the molding die and insert-molding the molded body from the plastic molding material with the mold.

A large number of polishing members (1) are mounted side by side in a row on the outer peripheral surface of the board (2) having a substantially fan shape. The fan-shaped board (2) with the abrasive member (1) is in the form of an abrasive disc segment (A) [see FIG. 2] in the form shown. Needless to say, this is just one preferred example. A plastic molded product may be applied to the board (2). To mount the polishing member (1) on the outer peripheral surface of the board made of a plastic molded product, insert the polishing member (1) into a molding die and insert-mold the board from the plastic molding material with the mold. Good.

It is a constituent element of a disc segment (A) and a brush roll (B) as a fan-shaped board (2) with a polishing member (1). The disc segments (A) are arranged in a circle around the axis of the shaft (3) and the polishing shafts (1) are arranged in a zigzag arrangement in the longitudinal direction of the shaft (3) so that they are closely arranged. It is mounted on the outer peripheral surface of the shaft (3).

The board (2) has an inverted T-shaped, substantially dovetail-shaped key (4) for mounting it on the shaft (3). The shaft (3) has a key (4) at a fixed position on the outer peripheral surface thereof, which extends spirally in the longitudinal direction of the shaft (3).
With an inverted T-shaped substantially dovetail shaped keyway (5). The keyway (5) spiral has an outer diameter of 2
A helix angle corresponding to a lead of about 52,000 mm or less with a 89 mm shaft (3) is acceptable. The key (4) and the keyway (5) have steps (40) and (50) which can be hooked on each other.

The key (4) is polished on the board (2) under the application of the same disc segment (A) so as to obtain a sufficient parallel density of the polishing members (1) along the length of the shaft (3). members longitudinal center line ₍₂₎ is parallel pitch of the abrasive members (1) of the parallel body and common longitudinal center line of the board (2) (1) ₍₁₎ to controller (4)
It is formed to be offset to the side by half. In the disc segment (A) as the board (2) with the key (4), the disc segments (A) arranged in the longitudinal direction of the shaft (3) are alternately reversed so that the shaft (3) has the keys (4) and By mounting it under the fitting of the key groove (5), the polishing member (1) has a zigzag arrangement as shown in FIG. 4 as a whole. That is, a sufficient parallel density of the polishing members (1) in the length direction of the shaft (3) is obtained by applying the same disc segment (A).

When the board (2) is mounted on the outer peripheral surface of the shaft (3) in a predetermined arrangement by fitting the key (4) and the key groove (5), the polishing members (1) are concentrated on the board (2). The arrangement is such that the twist angle (θ) follows the spiral lead of the keyway (5) along the length of the shaft (3) as a whole.
Of the spiral arrangement (see FIG. 4).

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a preferred example of the polishing member of the present invention, and FIG. 2 is a partial vertical front view showing an example of a polishing disc segment as a fan-shaped board provided with the polishing member of FIG. The drawing is a cross-sectional view taken along the line III-III in FIG.
FIG. 5 is a plan view showing the arrangement of polishing members in the form of a cross-sectional view taken along the line IV-IV of FIG. 2, and FIG. 5 is a cross-sectional view showing the structure of attaching the abrasive disc segment of FIG. 2 to a brush roll shaft. 6 is a front view of the covering member in the polishing member of FIG. 1, FIG. 7 is its plan view, and FIG. 8 is a front view showing the outline of the brush roll. (A) …… Abrasive disc segment, (B) …… Brush roll (1) …… Abrasive member, (2) …… Board, (3) …… Brush roll shaft, (4) …… Key, (5) ) ... Key groove, (11) ... Abrasive tip, (12) ... Metal sleeve, (13) ... Elastic rod, (14) ... Covering body.

Claims (1)

[Claims] 1. A number of substantially fan-shaped boards, each having a plurality of polishing members having a heavy polishing ability and arranged in a line on the outer peripheral edge, are arranged in a circle around the axis of the brush roll shaft, and the polishing members are staggered. In a manner such that the heavy polishing brush rolls are mounted on the outer peripheral surface of the shaft in such a manner that they are closely arranged in the shaft length direction so as to be arranged, a substantially dovetail-shaped key is provided on the base end side of the fan-shaped board, A substantially dovetail-shaped key groove extending spirally in the shaft length direction is formed on the outer peripheral surface of the shaft, and by fitting the key and the key groove, the board is mounted on the outer peripheral surface of the shaft as described above. A special heavy-duty brush roll.