JPH0371926A - Adjusting spacer for forming roll - Google Patents

Abstract

PURPOSE:To enable to use even so thin type and to exactly adjust the roll in a short time by making the spacer of one or plural spacer plates having plural recessing and projecting parts in a row on resective both or one end surface. CONSTITUTION:In the case of using a pair facing each other with the recessing and projecting surface of spacer plate 1a, the gross thickness of two spacer plates in the case where the recessing surface comes in contact with other projecting surface is different from that in the other case where the projecting surface comes in contact with the other projecting surface. The adjustment of roll shaft direction is executed by using this. Further, it is unnecessary to remove the roll at the time of adjustment and as there is not a spacer in non- operating the keeping management is also unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a spacer used when the axial position of a roll needs to be changed or adjusted in cold roll forming of a strip material.

[Conventional technology]

In cold roll forming of strip materials, when forming products with the same shape but different thickness or width, it is necessary to adjust the rolls by changing the mutual spacing of multiple rolls fitted on the same roll axis. . Conventionally, the axial position of the roll was changed by removing the roll, bearing, etc. fitted from the shaft end to the spacer position, replacing the ring-shaped spacer with one of a predetermined thickness, and then changing the roll again. This was done by fitting bearings etc. However, this spacer has the inconvenience of attaching and detaching the roll, etc., so there are some that do not have a ring shape and instead have a horseshoe shape, and others that are made of a pair of ring-shaped spacer pieces screwed together so that they can expand and contract in the axial direction.
Axial adjustments or changes were made between the rolls or between the rolls and the sleeve without removing the rolls from the shaft.

[Problem to be solved by the invention]

Since the above-mentioned horseshoe-shaped spacer is not ring-shaped, there is a problem in that it falls off from the shaft. In order to prevent this, Japanese Utility Model Publication No. 60-32896 discloses a spacer with a plunger for preventing falling off and a pilot for centering the roll, but the spacer needs processing for the plunger. Also, it cannot be applied to thin spacers.
It was also necessary to counterbore the roll side for the spigot.

There was also the problem that unused spacers needed to be stored and managed.

Furthermore, although the dimensions of the screw-type spacer can be changed steplessly by screwing, there is a problem in that the accuracy decreases and it cannot be applied to a thin spacer.

An object of the present invention is to provide a forming roll adjustment spacer that can be made thin, allows accurate roll adjustment in a short time, and does not fall off the shaft.

[Means to solve the problem]

As a result of study, the inventors of the present invention came up with the idea that all of the above problems could be solved by using a combination of a plurality of sets of spacer plates each having a ring-shaped spacer plate with unevenness divided into four or more sections on the end face. For example, a case will be described in which two spacer plates 1a having the shape shown in FIG. 1 with their uneven surfaces facing each other are used as a set of spacers. As can be seen from FIG. 2, the total thickness of the two spacer plates is different depending on whether the convex and convex surfaces are in contact with each other and the case where the convex surfaces are in contact with each other.

The present invention utilizes this fact to adjust the roll in the axial direction. In addition, there is no need to remove the roll during adjustment, and there is no idle spacer, so storage management is not required.6 In the present invention, it is used as a spacer,
It does not matter if the shim is thinner than this.

In addition, if a pair is provided with a dowel pin and a corresponding pin hole on the end face, mutual rotation during use may cause, for example, a convex curved surface contact to rotate relative to the convex surface contact during use, resulting in an uneven surface contact. can be prevented from changing.

Furthermore, if a match mark is provided on the outer periphery, the state of contact between the surfaces can be determined from the outside, and erroneous operations can be prevented.

That is, the present invention provides a ring-shaped adjustment spacer for forming rolls that is fitted coaxially with the forming roll and adjusts the axial position of the roll, and the spacer has recesses arranged in the circumferential direction on both or one end surface; This is an adjusting spacer for a forming roll, characterized by being made up of one or more spacer plates each having a plurality of sets of convex portions.

Further, it is preferable that the spacer plates are a pair, each having a dowel pin and a pin hole corresponding to the dowel pin on both or one end face thereof. Furthermore, it is desirable to provide matching marks on the outer periphery of the spacer plate.

Concave and convex portions corresponding to the concave and convex portions of the spacer of the present invention can also be provided on the side of the roll or the like adjacent to this spacer. In this case, one spacer (single)
becomes.

〔Example〕

As an example using the spacer of the present invention, the final stage in forming a grooved steel section will be described in detail.

The material to be formed has an outer width of 150 + as shown in Fig. 3.
++m, height 75cm, and two types of grooved steel with thicknesses of 4 mm and 6□□□. Since the material to be formed (4) has different thickness, the inner width (3) is 138 mm (6 mm thick) and 142 mm.
(4mm thickness).

The spacers used were a spacer plate (6) with a starch pin (7) shown in FIG. 4 and a spacer plate (io) with a pin hole (9) shown in FIG. 5 as a set. The spacers have an outer diameter of 80 mm and an inner diameter of 50 mm, (a) 2 sets of spacer silk with a concave part thickness of 4 nn and a convex part thickness of 6 mm, (b) a spacer plate with a concave part thickness of 4 mm and a convex part thickness of 8 mm.
One set of m was used. The diameter of the star pin was 5 mm and the length was 2M. The pin hole has a diameter of 5 degrees and a depth of 2.
5 It's embarrassing. Table 1 shows the total thickness when each spacer is combined.

Table 1 Also, each spacer plate has two location marks (8) on the outer periphery of the convex surface, as shown in FIGS. 4 and 5.

Next, the position of the rolls during actual molding will be explained. FIG. 6 shows the position of the upper roll when molding a test material with a thickness of 6 m. The lower roll is omitted because the outer dimensions of the product do not change and are constant.

In this state, space 1 (11) has a total thickness of 12 circles as a convex curved contact of the spacer, and space 2 (12)
(b) Total thickness t2mm as uneven contact of spacer
It is. Next, the thickness of the material to be formed was changed to 4 rolls, so the roll was adjusted.

First, the axial tightening was loosened to allow each spacer to rotate freely. After this, for each set of spacers, in the case of a convex curved contact, insert a cotter pin so that the matching marks are aligned and bring them into contact; in the case of an uneven contact, insert a cotter pin so that the dot marks do not match, and then tighten in the axial direction. Ta. Space 1 (11) has (a) a total thickness of 10 due to the uneven contact of the spacer, and space 2 (12) has (b)
The total thickness was 16 mm as a convex curved contact of the spacer. As a result of the above, the upper roll edge portion (14) has protruded outward by 2M on each side.

The total adjustment time described above is 15 minutes, which is shorter than the 20 minutes required when using a conventional horseshoe-shaped spacer, and the 30 minutes required when adjusting by removing the roll from the shaft. Compared to , the number was shortened to 172 or less.

In addition, conventionally, when using a horseshoe-shaped spacer, from the first stage to
Adjustment errors due to incorrect insertion of spacers, which occurred at a rate of about 10% up to the finishing roll stage, did not occur when the method of the present invention was used.

〔Effect of the invention〕

As explained above, by using the spacer of the present invention, roll adjustment can be performed accurately in a short time even with a thin spacer, and there is no possibility of the spacer falling off the shaft and there is no occurrence of incorrect operation, so it has great industrial utility value. .

[Brief explanation of drawings]

1 is a diagram showing the spacer position constituting the spacer of the present invention, FIG. 2 is a diagram for explaining the invention in detail, FIG. 3 is a diagram showing the shape of the rolled material, and FIG. 5.8
The figure shows an embodiment of the present invention. (Spacer, 1a, lb spacer plate. 2: Concave portion, 3: Convex portion, 4: Rolled material, 5: Inner width. 6: Spacer with cotter pin 7: Cotter pin, 8: Matching mark, 9: Pin hole. 10 : Spacer with pin hole, 11 spaces 1゜ Fig. 1 Fig. 2 Uneven contact Convex convex sure I Study 3 Fig. 170- Fig.

Claims (1)

[Claims] 1. In a ring-shaped forming roll adjustment spacer that is fitted coaxially with a forming roll and adjusts the axial position of the roll, the spacers are arranged circumferentially on both or one end surface. An adjusting spacer for a forming roll, characterized by comprising one or more spacer plates having a plurality of sets of concave portions and convex portions. 2. The forming roll according to claim 1, comprising a pair of spacer plates, one having a dowel pin on its uneven end surface, and the other having a pin hole corresponding to the dowel pin on its uneven end surface. Adjustment spacer for. 3. The adjusting spacer for forming rolls according to claim 1, wherein the spacer plate has matching marks on its outer periphery.