JPS6116886Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a straightening device for a roll forming machine that forms corrugated sheets used for storm door panels, door pocket head panels, and the like.

Storm shutter panels are formed from steel plates, and are often used by forming transverse waves on flat steel plates for strength and design reasons. Therefore, when forming a corrugated plate with transverse waves from a steel plate, there is a method in which forming rolls are set perpendicular to the longitudinal direction of the steel plate and the transverse waves are formed sequentially from the tip of the steel plate in the longitudinal direction. A method is known in which transverse waves are formed by passing a unit length steel plate through forming rolls installed parallel to its longitudinal direction, and the former method is advantageous when the pitch of the waves is small. The latter method is advantageous when the pitch is coarse, and since shutter panels and head panels of door bags are usually made of coarse pitch, the latter method is formed using steel plates cut into unit lengths. . However, as shown in FIG. 8, there may be distortion in the waves of the product molded using this method, resulting in a difference in length in the left and right vertical directions. When we looked into the actual situation, we found that steel plates are provided in a coiled form, and when the coil is unwound, cut, and formed, almost all of the coils are distorted in the same way. Other coils produced different distortions. Therefore, since the tempering of each coil is different, it is thought that the distortion varies depending on the wave shaping. Conventionally, if the amount of distortion is within tolerance, it can be used as a product, but in the case of shutters, the corrugated panels and frames are fastened together with rivets, and the pitch of the waves varies slightly. As a result, some parts were applied to the crests of the waves, resulting in uneven fastening strength.

Therefore, this idea was developed by equipping a roll forming machine that forms waves on a steel plate cut into unit lengths with a continuous straightening roll. Correct accordingly, 1
An object of the present invention is to provide a straightening device for a corrugated sheet roll forming machine, which is capable of continuously forming each coil into a corrugated sheet.

Hereinafter, an embodiment based on this invention will be explained. As shown in FIGS. 1 to 3, the corrugated sheet roll forming machine 1 has support beams 4 on each horizontal bar 3 of a pedestal 2 which is shaped like a ladder. Bearings 6, which are vertically adjustable and installed on columns 5 that stand up from the pedestal 2, are provided so as to be adjustable up and down by means of screw action, and protrude from opposing surfaces of each horizontal beam 3 and support beam 4;
Corrugation forming rolls 8 and 9 are supported parallel to each other between the upper and lower corrugation forming rolls 8 and 9, and spur gears 10 and 11 that mesh with each other are fitted into the upper and lower corrugation forming rolls 8 and 9, and each lower waveform is An endless chain 12 extending from a driving shaft (not shown) is connected to the forming roll 9 so that the upper and lower rolls 8 and 9 rotate in opposite directions. In addition, the upper and lower waveform forming rolls 8 and 9 are the second
Mold row 13 for making waveforms as clearly shown in Fig. 3
However, the length of the mold row 13 is formed to become gradually longer from the starting end (right side in FIG. 1) to the end.

The straightening device according to the present invention is installed continuously at the end of the corrugated sheet roll forming machine 1 having the above-described structure, and as shown in FIGS. 1, 4, and 6, A support beam 4 is placed on the horizontal beam 3 at the end.
are installed in the same manner as in the molding machine 1, and straightening rolls 14, 15 are pivotally supported between bearings 6, 6, 7, 7 provided on the horizontal beam 3 and the support beam 4, respectively, and the endless chain 12 and The upper and lower straightening rolls 14 and 15 are formed to be rotated in opposite directions by spur gears 10 and 11, and the upper and lower straightening rolls 14 and 15 have a circular cross section.
Further, a holding beam 16 is further constructed above the supporting beam 4 in parallel with the supporting beam 4 with a gap maintained, and this holding beam 16
A plurality of hydraulically operated cylinders 17 are fixed to each other with gaps in the longitudinal direction, and the piston rod 18 of each cylinder 17 is swingably connected to the supporting beam 4 facing the cylinder 17 by a pin.

In FIG. 1, 19 is a steel plate coil, 20 is a material obtained by cutting the steel plate coil 19 into a predetermined length, and 21 is a corrugated sheet formed from the material 20.
Further, FIG. 8 shows the corrugated plate 21, which is an example of distortion before correction.

This invention has the above structure, and as shown in FIG. If it is inserted between the upper and lower forming rolls 8 and 9 from the starting end of the material 20, the material 20 will be inserted sequentially as the corrugating rolls 8 and 9 rotate, and at the same time a corrugated shape will be formed from the longitudinal center of the material 20, and the forming machine 1, waves are formed over the entire surface of the material 20. However, at this point, distortion has occurred, for example, as shown in FIG.
The corrugated plate 21' is taken out without being straightened by leaving a large gap between the top and bottom of the straightening rolls 14 and 15 that are continuous to each other.
The state of the distortion is observed, and then the interval between the upper and lower straightening rolls 14, 15 is adjusted according to the thickness of the corrugated plate 21', and the cylinder 17 is adjusted according to the state of distortion.
to make fine adjustments. When the distortion is as shown in Fig. 8, the cylinder 17 is operated so that the straightening rolls 8 and 9 act only on the left half of the drawing, and when the corrugated sheet has shrunk as a whole, By acting on the entire corrugated plate, even if the wave is distorted midway, it is corrected by the upper and lower straightening rolls 14 and 15, resulting in a normal corrugated plate 2 shown on the left side of FIG.
It is molded as 1.

As described above, the straightening device for a corrugated sheet roll forming machine according to this invention has a pair of upper and lower straightening rolls installed in parallel to the end of the corrugated sheet roll forming machine so as to be vertically adjustable. The structure is such that the spacing between the upper and lower straightening rolls can be partially adjusted by applying pressure from a cylinder to several locations on the support beam that pivotally supports the straightening roll, and the straightening roll is connected to the forming roll. Therefore, once the straightening condition is determined depending on the steel quality of the adjusting plate coil, the corrugated sheet is continuously formed into a normal corrugated sheet with the distortion corrected. Furthermore, since the adjustment between the upper and lower sides of the correction roll is achieved by driving each cylinder, fine adjustment is facilitated, and even complex distortions can be corrected.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a corrugated sheet roll forming machine equipped with a straightening device according to this invention, the material to be formed, and the product, Fig. 2 is a side view taken along the line A-A in Fig. 1, and Fig. 3 is a Fig. 1 is a sectional view taken along line B-B, Fig. 4 is a sectional view taken along line C-C in Fig. 1, and Fig. 5 is Fig. 2 D-
6 is a cross-sectional view taken along the line E-E in FIG. 4, and FIG. 7 is a side view showing a part of the corrugated plate being corrected by the upper and lower correction rolls. FIG. 8 is a front view showing an example of a corrugated plate with distortion. 1... Corrugated sheet roll forming machine, 2... Frame, 3...
Horizontal beam, 4... Support beam, 5... Support column, 6, 7... Bearing, 8, 9... Corrugation forming roll, 10, 11...
... Spur gear, 12 ... Endless chain, 13 ... Mold row, 14, 15 ... Straightening roll, 16 ... Holding beam, 17 ... Cylinder, 18 ... Piston rod, 19 ... Steel plate coil, 20 ... Material ,21,
21'...Corrugated plate.

Claims (1)

[Scope of utility model registration request] A pair of straightening rolls 1 having a circular cross section and vertically facing each other in parallel are connected to the end of a corrugated plate roll forming machine 1 in which a plurality of corrugation forming rolls 8 and 9 are arranged in series.
4 and 15, the lower straightening roll 15 is pivotally supported on the pedestal 2, and the upper straightening roll 14 is pivotally supported on the support beam 4 installed above the pedestal 2. A holding beam 16 is installed above in parallel with the supporting beam 4, and a plurality of cylinders 17 are fixed to the holding beam 16 at intervals in the longitudinal direction.
7 of the piston rods 18 are connected to the support beam 4.