JPH0217698Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a roll adjustment device for a roll forming machine.

(Prior Art) In a roll forming machine that forms long materials with various cross-sectional shapes using a large number of rolls arranged side by side, it is troublesome to adjust the forming gap between the forming roll pairs according to the material thickness. .

(Technical Problem) The present invention is intended to solve the above problem, and its purpose is to automatically absorb the difference in material thickness and eliminate the need to adjust the forming gap depending on the material thickness. Our goal is to provide the following.

(Technical Means) The present invention that achieves the above-mentioned object has a structure in which at least one roll 1 of a pair of forming rolls has a roll portion 3 on the side perpendicular to the axial direction of its mounting shaft 2 and a portion 4 that defines the roll position. This is a roll adjustment device for a roll forming machine that is attached to the mounting shaft 2 so as to be slidable by a required amount in the direction of the mounting shaft via a forming material thickness absorption mechanism 5 in between.

(Function of the invention) In the present invention, at least one roll 1 of the pair of forming rolls is attached to the mounting shaft 2 via the thickness absorption mechanism 5, so the roll 1 is moved by forming materials of different thicknesses to adjust the gap. However, the difference in thickness can be absorbed.

(Example) In the illustrated example, 7 is a frame of a roll forming machine, 8 and 9 are upper and lower rows of rolls that are rotatably supported on the frame 7, and there is a space between the rolls 8 and 9 depending on the thickness of the molded material. A suitable molding gap 10 is molded. As illustrated in FIG. 1, the roll rows 8 and 9 in the roll forming machine of the embodiment consist of a small-diameter roll group at the front stage, a small-diameter roll group at the front stage, and a large-diameter roll group at the rear stage, and the rolls are arranged from the left in the figure. While moving to the right, roll forming is carried out in the order of Fig. 5 a to n, and finally the 6th
A mold material S having a cross-sectional shape as illustrated in the figure can be manufactured.

A certain stage of a pair of forming rolls, for example, the 7th stage
As shown in the 13th stage, for the pair of rolls that complete the bent part of the profile S, at least one of the rolls 1 is slidably supported on its mounting shaft 2, and is prevented from sliding freely in the axial direction. A buffer material 6 made of a hard rubber disc is interposed between one part 3 of the roll rotation surface and the roll position defining part 4. The roll 1 of the embodiment has a cushioning material storage recess 11 on the frame side, the back surface of which is the roll portion 3 against which one surface of the cushioning material 6 comes into contact, and is locked to the stepped portion 12 of the mounting shaft 2. The side surface of the annular plate 13 is used as the roll position defining portion 4,
The cushioning material 6 of both parts 3 and 4 constitutes a thickness absorption mechanism 5. The illustrated annular plate 13 is smaller than the recess 11, so it can be inserted into the cushioning material 6.
By making the recess 11 larger than the recess 11 so that it touches the back surface 14 of the roll, the limit of the amount of adjustment can be defined to absorb the thickness of the molding material. Reference numeral 15 indicates the mold surface of this roll 1, and reference numeral 16 indicates a nut screwed into the threaded portion at the tip of the mounting shaft.

17 is an opponent roll that is paired with the roll 1,
It is attached by an oblique shaft 18 and also has a surface 19 parallel to a portion of the mold surface 15 and a recess 20 through which the flap passes. Conventionally, it was necessary to attach the mating roll so that it could be finely adjusted in order to adjust the thickness of the folded portion, but this is not necessary with the present invention.
21 is a mounting shaft for the oblique shaft 18, 22 is a member for mounting the oblique shaft 18 on the frame 7, 23 is a molding machine stand, 24 is a roll drive motor, and 25 is a work support stand. In the above configuration, when the workpiece, that is, the roll forming machine, is set between the upper and lower rolls 8 and 9, the forming material is formed in stages according to the forming gap formed by the forming roll pair while moving along the pass line. A mold material S as illustrated in FIG. 5 or FIG. 6 is obtained. At this time, the end portion folded portion 26 passes through the recess 20 and is formed by both rolls 1 and 17 as shown in FIG.
This is done in the gap 10 between. Note that this mold material S is
It is a long material having a connecting portion with a corner piece P as illustrated in FIG. 6, and the connecting means is roll-formed, and the long material is used for ducts and the like.

(Effect of the invention) Therefore, according to the invention, even if forming materials with different thicknesses pass through, at least one roll 1 has the thickness absorption mechanism 5, so the difference in material thickness is automatically absorbed. Since no adjustment is required, there is no need for setup at all, and there is an effect that roll forming, etc., in which parts such as half-folds and double folds are formed, can be performed extremely easily.

[Brief explanation of the drawing]

The drawings show one embodiment of the roll adjustment device for a roll forming machine according to the present invention, in which Fig. 1 is a front view of the roll forming machine, Fig. 2 is an enlarged cross-sectional view of the main parts, and Fig. 3 is the roll forming machine. Figure 4 is a plan view, Figure 4 is a side view, and Figure 5 is a side view.
The figure is a sectional view showing the molding stage, FIG. 6 is a sectional view of the product, and FIG. 7 is a partially enlarged view of FIG. 2. DESCRIPTION OF SYMBOLS 1...Roll, 2...Mounting shaft, 3...Roll portion, 4...Roll position regulation portion, 5...Thickness absorption mechanism, 6...Buffer material.

Claims (1)

[Claims for Utility Model Registration] (1) At least one roll 1 of a pair of forming rolls
is slid a required amount in the direction of the mounting shaft via a molded material thickness absorption mechanism 5 between the roll portion 3 on the side perpendicular to the axial direction of the mounting shaft 2 and the portion 4 that defines the roll position. A roll adjustment device for a roll forming machine, which is movably attached to a mounting shaft 2. (2) The utility model registration claim 1, wherein the thickness absorbing mechanism 5 is a rubber plate or other resilient cushioning material 6 interposed between the roll portion 3 and the roll position defining portion 4. Roll adjustment device for roll forming machine.