JP3441611B2 - Roll forming machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll forming machine, and more particularly to a roll forming machine for bending both side ends of an original plate using a forming roll.

[0002]

2. Description of the Related Art Conventionally, as a roll forming machine 1'of this kind, as shown in FIG. 5, an upper roll 3a for processing both side end portions 2a of the original plate 2 into a desired shape on both sides of a carry-in path 4 of the original plate 2.
A pair of molding stands 7, 7 having a plurality of pairs of molding rolls 3 consisting of a lower roll 3b and a lower roll 3b are arranged, and in order to stabilize the passage of the original plate 2, the original plate 2 is placed in the carry-in path 4 of the original plate 2. It is known that a receiving roll 11 that is supported from below is arranged.

[0003]

However, when molding both side ends 2a of the original plate 2, for example, the shape of the original plate 2,
Due to a composite factor such as the gap of the forming roll 3, a phenomenon called a so-called walk in which both side end portions 2a (edges) of the original plate 2 tend to come out of the forming roll 3 is apt to occur. As a result, as shown in FIG. As shown by an arrow F, there is a problem that the central portion of the original plate 2 is swollen and the passing of the plate becomes unstable, resulting in a definite adverse effect on the quality. Moreover, when the original plate 2 is swollen due to the walk, conventionally, the roll forming machine 1'is temporarily stopped and the worker enters the roll forming machine 1'and pushes down the expanded original plate 2. However, the work in the roll forming machine 1'is not only difficult and dangerous, but also the roll forming machine 1'has to be suddenly stopped every time a walk occurs, which reduces productivity. There was also the problem of doing.

The present invention has been made in view of the above points, and an object of the present invention is to prevent troubles caused by a walk in a roll forming machine, to stabilize a strip, and to adversely affect quality. It is to provide a roll forming machine that can eliminate the above and improve productivity, and further improve work and ensure safety.The other purpose is to automatically cope with original plates with different plate thickness. The purpose of the present invention is to provide a roll forming machine which does not require the level adjustment of the pressing roll.

[0005]

In order to solve the above problems, the present invention provides an upper roll 3a and a lower roll for processing both end portions 2a of the original plate 2 into a desired shape on both sides of a carry-in path 4 of the original plate 2. a plurality of sets of forming rolls 3 consisting of 3b with respectively disposed, introduction passage 4 to the pressing roll 6 for preventing swelled by Walk master plate 2 presses the master plate 2 from above during Tsuban original sheet 2 Multiple units are arranged along the loading path 4 of
Support frame 21 provided near the entrance 1a of the molding machine 1
With the center of rotation as B, it is possible to swing vertically.
Middle rail 2 that connects the pair of arms 20a and both arms 20a
0b and the pressing roll mounting tool 20
It is characterized in that both ends of the pressing roll 6 are rotatably supported . With this structure, the pressing roll 6 presses the original plate 2 from above during the forming process of the original plate 2, It is possible to prevent a so-called walk in which both end portions 2a (edges) of the original plate 2 try to come out of the roll 3, and thus prevent the original plate 2 from swelling due to the walk, so that the passing plate can be stabilized. Therefore, it is possible to eliminate the adverse effect on the quality.

[0006] Since the movable said plurality of pressing rolls 6 in the vertical direction, rides the pressing roll 6 on the upper surface of the original sheet 2 coming be carried, because a state in which the original sheet 2 is pressed from above, the original sheet 2 can be surely prevented from bulging, and even if the original plate 2 has a different plate thickness, the pressing roll 6 can be automatically changed to a level suitable for the plate thickness. Therefore, it is necessary to adjust the level of the pressing roll 6. Disappears.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described below. The roll forming machine 1 of the present embodiment, for example, in the case of manufacturing a so-called sandwich panel in which both front and back surfaces of a core material made of foamable plastic or the like are covered with a metal outer cover, a metal outer cover plate (hereinafter, referred to as “original plate”) is manufactured. 2 ") is used for bending both side ends 2a. In addition, as the target original plate, other than the metal original plate for sandwich panel, it may be a general roofing material or a metal building original plate such as a wall material, and of course, is not limited to the metal material. Absent.

As shown in FIGS. 1 and 2, the roll forming machine 1 has a pair of roll stands 7 standing upright on both sides of a carry-in path 4 into which the original plate 2 is carried, with each roll stand 7 standing upright. Includes an upper roll forming machine 1A having a plurality of upper rolls 3a, a lower roll forming machine 1B having a plurality of lower rolls 3b, a drive source such as a motor for driving the upper rolls 3a and the lower rolls 3b (Fig. (Not shown). For example, 10 upper rolls 3a and 15 lower rolls 3b are arranged, and these upper rolls 3a and lower rolls 3b constitute a plurality of sets of forming rolls 3. In addition, each roll 3a,
Reference numeral 3b denotes a shape capable of forming the side end portion 2a of the original plate 2 into a desired shape, for example, a combination of a concave roll and a convex roll. By adjusting the gap between the rolls with a gap adjusting handle 8 (FIG. 3), It can handle two different plate thicknesses. The material of the roll has a high hardness and is excellent in abrasion resistance.

At the inlet 1a of the roll forming machine 1, a supply table 9 for the original plate 2 and a side guide 10 are arranged. The supply table 9 has a role of adjusting the original plate 2 to the level (height) of the forming roll 3, and the side guide 10 has a role of centering the original plate 2 in the carry-in path 4 by lateralizing the original plate 2. is doing. Inside the roll forming machine 1, a plurality of pressing rolls 6 for pressing the original plate 2 from above along the carry-in path 4 of the original plate 2 and a plurality of receiving rolls 11 for supporting the original plate 2 from below are respectively arranged. Has been done. Each pressing roll 6 is movable in the vertical direction as described later. The receiving rolls 11 are arranged at substantially the same level as the lower roll 3b row.

The plurality of pressing rolls 6 have a role of pressing the central portion of the original plate 2 that has been carried in from above, preventing the original plate 2 from bulging upward, and stabilizing the threaded plate. As shown in FIGS. 3 to 4, the pressing rolls 6 are arranged along the carry-in path 4 of the original plate 2. Also, each press roll 6
Is composed of a long roll having an outer diameter of φ90 and a width D of about 400 mm, and is oriented in a direction orthogonal to the loading direction A of the original plate 2. Both ends of the pair of arms 20a and both arms are parallel to each other. A plurality of middle piers 2 connecting between 20a
0b and a pressing roll mounting tool 20 that are rotatably supported. In this embodiment, the pressing roll mounting tool 20 has three pressing rolls 6 arranged at substantially equal intervals within a range L of 850 mm, and the base end portion 20c of the pressing roll mounting tool 20 is, for example, an upper portion. Inlet 1a of the roll forming machine 1 protruding integrally from the roll forming machine 1A
It is rotatably supported by a support frame 21 that is close to the vicinity, so that the pressing roll attachment 20 can swing vertically with the support frame 21 as the rotation center B. Further, in a state where the press roll attaching tool 20 is horizontal, the rotation center B of the press roll attaching tool 20 is located at a position higher than the upper roll 3a row in the upper roll forming machine 1A, and each press roll 6 is moved upward. The rolls 3a are located at substantially the same level as the row, so that each pressing roll 6 can contact the upper surface of the original plate 2. The number of pressing rolls 6,
The intervals and the like are not limited to the embodiments shown in the accompanying drawings. In FIG. 4, 8 is a gap adjusting handle for adjusting the gap between the rolls, and 30 is a surveillance camera.

Thus, the original plate 2 carried in from the inlet 1a of the roll forming machine 1 is adjusted to the level of the forming roll 3 by the supply base 9 and is laterally moved to the center position of the carry-in passage 4 by the side guide 10. After that, both end portions 2a of the original plate 2 are bent by a plurality of sets of forming rolls 3 including an upper roll 3a and a lower roll 3b. At this time, since a plurality of pressing rolls 6 are arranged in the carry-in path 4 of the original plate 2 along the carry-in path 4, the pressing force from the pressing roll 6 is applied to the original plate 2 during processing by the forming roll 3. It will be. Therefore, it is possible to prevent a walk in which both end portions 2a (edges) of the original plate 2 try to come out from the forming roll 3 during the passage of the plate, and accordingly it is possible to prevent the original plate 2 from bulging due to the walk. It is possible to stabilize the threading, eliminate a definite adverse effect on the quality, and prevent the roll forming machine 1 from suddenly stopping due to a walk, thereby improving productivity. In addition, it is not necessary to stop the roll forming machine 1 each time a walk occurs and perform the work of pushing the original plate 2 down inside the roll forming machine 1 as in the conventional case. Therefore, the work is improved and the safety is improved. Will be planned. Further, by installing a monitoring monitor in the roll forming machine 1, it is possible to monitor the state of the original plate 2 during forming, which is more effective in preventing troubles caused by a walk in the roll forming machine 1.

Moreover, since the pressing roll attachment 20 for supporting each pressing roll 6 can swing in the vertical direction, each pressing roll 6 rides on the upper surface of the original plate 2 that is carried in, and the pressing roll 6 moves. The original plate 2 is pressed from above by the load, and thus the original plate 2
It is possible to reliably prevent the bulging of the plate and further stabilize the passing plate. Further, even if the plate 2 has a different plate thickness, the pressing roll 6 is automatically adjusted to a level suitable for the plate thickness. Since it can be changed, the original plate 2 with different plate thickness
Therefore, there is an advantage that it is not necessary to adjust the level of the pressing roll 6 and the labor of the work can be further reduced.

Further, a substantially U-shaped handle 22 is attached to the pressing roll mounting tool 20, and when the pressing roll 6 is not used, the handle 22 is grasped to open the pressing roll mounting tool 20 upward and carry it in the carrying-in path. 4 is a mechanism that can be evacuated to the outside of the roll forming machine 4, for example, so that the pressing roll 6 can be kept out of the way during maintenance work in the roll forming machine 1.

[0014]

As described above, the invention according to claim 1 of the present invention comprises the upper roll and the lower roll for processing both end portions of the original plate into a desired shape on both sides of the carry-in path of the original plate. A plurality of sets of forming rolls are installed respectively, and a pressing roll for pressing the original plate when passing through the carry-in path to prevent it from swelling due to the walk of the original plate
A plurality of them are arranged along the line and installed near the entrance of the roll forming machine.
Free to swing up and down with the support frame as the center of rotation
The pair of arms and the middle bar connecting both arms
The above-mentioned multiple holding rolls can be
Since both ends of the roll are rotatably supported , it is possible to prevent the original plate from bulging due to a walk in the roll forming machine when the original plate is pressed from above by the pressing roll during the forming process of the original plate. Since the plate can be stabilized, adverse effects on quality can be eliminated, and sudden stop of the roll forming machine can be prevented, so that productivity can be improved and further each time a walk occurs. Since it is not necessary for an operator to enter the roll forming machine and push down the original plate, the work can be improved and the safety can be improved. Well
Is it possible to move multiple press rolls vertically?
Press the roll on the top of the original plate
The original plate is pressed down from above, so the original plate
It is possible to reliably prevent bulging of the plate and further stabilize the passing plate.
It is possible to obtain
Even if the holding roll mounting tool is moved up and down
The roll can automatically change to a level suitable for the plate thickness.
Since it is possible to cope with original plates with different plate thicknesses
Therefore, it is necessary to adjust the level of the pressing roll.
It is unnecessary and can save the labor of work.
It

According to a second aspect of the invention, in addition to the effect of the first aspect, the plurality of pressing rolls are substantially the same as the upper roll.
Hold down the pressing roll mounts while they are located at one level.
Since the center of rotation is located higher than the upper roll, press
Even the rolls can come into contact with the upper surface of the original plate, respectively.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an example of an embodiment of the present invention.

FIG. 2 is a schematic plan view of the above roll forming machine.

FIG. 3 is an explanatory view of a mounting state of the pressing roll of the above.

FIG. 4 is an explanatory view of a plate passing state of the same original plate.

FIG. 5 is an explanatory diagram of a bulge due to a walk of a conventional original plate.

[Explanation of symbols]

1 roll forming machine 2 original plate 3 forming rolls 4 Carry-in route 6 holding roll

Claims (2)

(57) [Claims] 1. A plurality of forming rolls, each of which is composed of an upper roll and a lower roll, for processing both end portions of the original plate into a desired shape are provided on both sides of the original plate carrying-in path, and when passing through the carrying-in path. Hold the original plate from above to prevent the original plate from swelling due to the walk, and install a pressing roll along the original plate loading path.
Multiple supports arranged near the entrance of the roll forming machine
It is possible to swing vertically with the frame as the center of rotation.
With a pair of arms and a middle rail connecting both arms
Of the above press rolls
A roll forming machine having both ends rotatably supported . 2. A plurality of pressing rolls are substantially the same as the upper roll.
Turn the pressing roll fixtures while they are positioned at the respective levels.
The roll forming machine according to claim 1, wherein the rolling center is located at a position higher than that of the upper roll .