DE31672C - Profiling and handling of rolls for corrugated sheet metal - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The purpose of the machine described below is to manufacture corrugated sheet metal peculiarly shaped rollers, and in such a way that there is always only half a wave is produced during one pass of the sheet. At the same time, these rollers serve for leveling the finished corrugated sheet and you can do the same by adjusting it appropriately the guide rollers lying in front of the rollers also bomb, so that all three named are Have operations performed on the same machine.

Fig. Ι represents the longitudinal section of the new machine dar;

Fig. 2 is a horizontal section along the line AB in Fig. 1;

Fig. 3 is a section on the line CD in Fig. 1;

Fig. 4 shows the front view of the machine with the omission of the drive for the guide rollers ;

Fig. 5 shows details of the roll profile at the point of introduction of the sheet;

Fig. 6 gives details of the guide rollers;

7 to 13 show the bending of the sheet in different stages up to the normal profile.

D is the frame of the machine, which can be made of wood or iron and in which the main or pref rollers and the guide rollers are mounted.

The three prefabricated rollers EFG are profiled according to the wave shape of the sheet to be produced and mounted in the frame D of the machine in such a way that the rollers E and G can be adjusted in the vertical direction within certain limits, while the middle roller F cannot be shifted vertically.

The bearings α a ^l bb ^{1 of} the rollers E and G are therefore set up to be adjustable in a suitable manner, while the bearings CC ¹ C ^{2 of} the roller F are fixed immovably on the frame D , FIGS. 1 and 2.

These three superimposed rollers are driven by the pulleys H arranged on the shaft of the middle roller F , and the rotation of said shaft is controlled by the gear wheel j, which is also attached to the same, by means of the wheels KK ¹ on the rollers E. and G transferred so that the rollers rotate in the direction of the arrows, Figs. 1, 2, 3 and 4.

The guide rollers LL ¹ L ² and MM ¹ M ² lie in a horizontal plane with the pref rollers on both sides of the same, FIGS. 2, 3 and 4, and can be adjusted like these in the vertical direction, for which purpose their bearings by means of screws d - and can be moved away.

NN ¹ are two iron tables which are adjustable in the vertical direction and whose upper surface is provided with small rollers m , Fig. 3, 3a. These tables NN ¹ serve to support the sheet metal during the introduction and rolling and give the still smooth part of the latter, which has not yet passed the rollers, such a bend that the sheet metal can easily be placed between the guide rollers and the rollers for the production of the next half-wave Prefswalzen can be inserted.

The guide rollers LL ¹ L ² and ΜΜ ^Λ Μ * ~ are driven by pulleys PQ , analogous to the Prefswalzen.

These pulleys P respectively. Q. sit on the shaft of the middle guide pulley L ¹ respectively. Af ¹ , and is their movement by gear wheels 0 on the guide rollers LL ² BEZW. Transfer MM ² , FIG. 2.

As can be seen from FIG. 6, the central guide rollers L ¹ M ^{1 are} twice as wide as the guide rollers LL ² MM ² , and their shafts are also provided with small flutes, corresponding to the distance between the sheet metal shafts.

The Prefswalzen EFG now have the following special Profilirung respectively. Corrugation: The bead I of the central pref roller F (see Fig. 5) is slightly beveled at xx , so it does not have the normal profile (the latter is indicated with dotted lines for the sake of clarity), furthermore the bead II is somewhat narrower than the normal profile (the latter dotted indicated), while Bead III and the subsequent beads and grooves show the required normal profile.

The prefabricated rollers EG also have a bead I ^a and I ^b at the front end, which is narrower than the normal profile, while the beads II ^a II ^{b show} the normal profile, as do all the other beads and grooves of these rollers, FIG. 5.

The mode of operation of the machine is as follows: First, the smooth metal sheet is bent over on one side, as shown in FIG. 7 or 8, and this can be done either on an edge bending machine or in some other suitable manner. It is then pushed in the direction of the arrow R, FIG. 3, between the guide rollers L ¹ L ² and guided by these between the pref rollers FG , between which it receives the bend shown in FIG. After the guide rollers M ¹ M ² have been passed, the sheet metal is raised a little and brought in the direction of the arrow R ¹ , Fig. 3, between the guide rollers MM ¹ , which transport the same between the Prefswalzen EF , where the sheet metal shown in Fig. 10 obtained bend. After the guide rollers LL ^{1 have} now been passed by the metal sheet, the latter is again, as stated at the beginning , pushed in in the direction of arrow R, Fig. 3, and receives the bend in Fig. 11, then again in the direction of arrow R ¹ , is produced whereby the bending of Fig. 12

and so on, until the profile of the sheet, as in Fig. 13 represents, in the third wave becomes normal.

Of gröfster necessity of the bevel of the bead I of the Prefswalze F, Fig. 5, and the lower II thereof, and further the beads I ^a BEZW than normal width of the bead. I ^{b of} the Prefswalzen E respectively. G, because only this device prevents the sheet from tearing by applying the pressure of the rollers. the bulges of which act only in the curvature of the shaft, but the longer side of the shaft does not prefst the so-called web of the corrugated sheet and thus causes it to tire.

If you want to bomb the corrugated sheet produced in this way, you simply set the guide rollers LL ¹ L ² and MM ¹ M ² lower or higher as required, so that the centers of their axes are no longer in a horizontal plane with those of the pref rollers, and they finish Now pass the corrugated metal sheet through the machine until the curvature has the desired arrow height by adjusting the guide rollers appropriately. * ||;

The leveling of the corrugated sheet is effected at the same time as the rolling itself by that the sheet metal, by always bending only half a wave that goes after the third, The whole wave following, exactly the normal profile of the waves forming beads and grooves the pre-roller has to pass repeatedly .;

Claims (1)

Patent claim: On corrugated sheet metal rollers with two or more rollers, the profiling and handling of the prefabricated rollers in such a way that the bead I, Fig. 5, of the middle prefabricated roller F is turned obliquely at xx , the bead II is narrower than the normal profile and only the bead III is normally profiled is that furthermore the bead I ^{a of} the roller E respectively. the bead I ^b , of the roller G is also narrower than the normal profile, so that when rolling in the first two waves, the pressure is only obtained in the arch of the same, but the so-called webs are not pressed in order to prevent the sheet metal from frosting, in that, starting on one side of the sheet, only half a wave is formed with each insertion, only in the third wave does the bending of the sheet get the normal profile, which is evenly reworked by the subsequent beads and grooves of the pref rollers. For this purpose ι sheet of drawings.