DE1241691B - Device for punching foils, for example made of paper - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

B31f

German KL: 54d- 3/02

Number: 1241691

File number: W 39356 VII b / 54 d

Filing date: June 16, 1965

Open date: June 1, 1967

The invention relates to a device for punching foils, for example made of paper. There are such devices known that with a rotating patrice cylinder and one against these press-on ribbed pressure roller are equipped. The foil material to be punched is guided in the form of a track around the pratrice cylinder, the protruding from its surface, the each desired hole has corresponding pins. The foil material is against the pratrice cylinder pressed, the holes being pre-cut by the pins of the roller .. By the The pre-cut perforation parts are removed from the pressure roller lying against the patrice cylinder Foil web removed by friction.

In these known devices, the one-piece pressure roller extends over the entire length of the patrice cylinder. In this known embodiment of the pressure roller, it is necessary that it is set exactly with respect to the patrice cylinder, which is because of the length of the Roller can only be done by specially trained personnel, since the pressure roller on its entire Length must be adjusted and compensated with extremely small tolerances. Herein lies a significant disadvantage in that the ribbed roll surface is easily damaged and is worn out, so that if one point is worn, the entire roller must always be replaced. A Another disadvantage of the known Ausführungsangsfonn is that the surfaces of the above Pins of the patrice cylinder over the entire length of the roller on exactly the same diameter must lie, d. That is, the diameter of the pins must not be subject to any fluctuations. These Disadvantages are particularly severe where untrained personnel are available; in such cases it is practically impossible to keep the known device in operation. Another Serious disadvantage is that when the device is stopped by its compactness heavy pressure roller can practically not be stopped suddenly, so that slower rotating patrice cylinder, which for certain reasons something (about 0.4 see) in front of the printing roller must be stopped to heat the protruding pins in contact with the platen is supplied, which has a thermal elongation of the pins result, which in turn lead to inaccuracies can. In order to prevent this, one is forced with the known devices with the shutdown of the patrician cylinder the relatively

Device for punching foils,
for example made of paper

Applicant:

Maurice Verne Wyatt,

South Bend, Ind. (V. St. A.)

- Representative:

Dipl.-Ing. H. Seiler and Dipl.-Ing. J. Pfenning,
Patent attorneys, Berlin 19, Oldenburgallee 10

Named as inventor:

Gustav Sigvald Hellberg, Johanneshoy

(Sweden)

Claimed priority:

Sweden 11 September 1964 (10 948)

to bring the pressure roller to be slowed down, except for the embrace with the patrice cylinder. Such a one Arrangement is extremely difficult and complicated due to the fact that the pressure roller when the device is put back into operation in its old position with an accuracy of a few thousandths of a millimeter must be traced back.

The invention has set itself the task of eliminating these disadvantages inherent in the known devices to avoid and to create a device in which the setting of the pressure roller with absolute Accuracy can be performed and its diameter can be reduced significantly, which results in less heat build-up on the pins of the patrice cylinder and less heat build-up mass to be braked results. This is achieved according to the invention in that the pressure roller from at least two independently and individually adjustable single pressure rollers of lower Width than the patric cylinder.

A device according to the invention that with independent each adjustable individual pressure rollers of smaller width is equipped, can be significant be operated faster than the known device. In addition, the length of the patrice cylinder not limited, which is in the known embodiments because of the one-piece pressure roller is the case, so that with the inventive

709 588/103

Claims (1)

3 4 direction wider tracks than with the known drive shaft 9 can be driven. Like F i g. 2 direction can be processed. With spread and 3 show, on the other side of the patriotic Only the number of printing cylinders 1 and a further row of printing rollers 5 are used to determine the path of the webs to increase rollers, which should not be provided for any single drive, so as to reduce the area of the patrician difficulties can lead. Also, the 5 ders can capture those on the opposite row Diameter of the pin surfaces of the patrician cylinder from pressure rollers 5 by the holding arrangement 6 from be different in the range of its length, is covered. since the individual pressure rollers can be set separately F i g. 4 shows a plurality of patrice cylinders 1, are. The device according to the invention can be arranged one behind the other. In this way thus much easier to handle and requires io can easily be the pattern on the film not more easily alter the presence of specially designed perforations to be applied. Further- Specialist staff. you can of course use the patrice cylinders 1 Another feature of the invention is to give different speeds for what that the individual pressure rollers over the scope of the certain types of perforation is useful.
Patrikumylinders are arranged distributed. Next is 15 like the fig. 5 shows, the platen 5 is on the essential that the obliquely angled ribs of the surface provided with ribs 10, which are oblique to the individual pressure rollers belonging to an axis are directed in the surface line of the surface. The rip are arranged in such a direction that they are also slightly S-shaped bent on pen IO, the film material exert a stretching effect. since the ribs 20 forming right-angled The invention is further characterized in that ao plates are arranged obliquely on the surface of a cylinder in that each pressure roller is arranged for the purpose of radial adjustment. The ribs are also eccentrically inclined in relation to the male cylinder in the rearward direction of rotation, whereby a housing is arranged which is rotatably supported on a stopping of the male cylinder in front of the pressure support assembly. Here it is essential that rolling is required, otherwise the pins that the housing is equipped with a gear would bend 35 ribs forward,
that for the purpose of rotating the housing with the released one The pressure roller 5 is fixed by means of a cone on the Spannverbmdung with a pinion cooperating shaft 11, which can be eccentric in ball bearings 12, which is inserted into a hole of a support arrangement in a housing 13, which in turn is in cash. the support assembly 6 is added. To the In a further embodiment of the invention, the other 30 ends of the shaft 11 are a belt support arrangement for the housings on a rod washer 14. The setting of the platen 5 in displaceable parallel to the patric cylinder. radial direction to the patrice cylinder takes place Finally, it is also important that the pressure by rotating the housing 13 in the Traganord- rollers or each row of the pressure rollers of a voltage 6. For this purpose, the housing 13 is with common shaft can be driven from. 35 provided a gear 15, which after releasing the The drawings show embodiments of the clamping device with a pinion together. Invention, and it means can work that in a hole 16 of the Traganord- F i g. 1 a perspective illustration of a recess 6 can be inserted. management form, the pressure rollers 5 are appropriately so F i g. 2 is a plan view of one with two opposing 40 arranged that the ribs 10 of two adjacent- Austen rollers equipped with overlying rows of pressure rollers move in different directions guide shape, stretch so that the through the oblique angle F i g. 3 shows a side view according to FIG. 2, trained side halves level each other out and F i g. 4 one of three patrice cylinders, each with one stretching the film material in width. at The device and 45 of the device described are all printing F i g. 5 shows a perspective illustration of the position rollers in a row over aprons 8 from a yoke and the adjustment arrangement of the individual printing common drive shaft 9. Self roller, Understandably, each pressure roller 5 can also have its own According to FIG. 1 has the front drive device according to the invention, which in itself is arbitrary direction a patrice cylinder 1, which can be formed with protruding 50,
lowing pins 2 is provided, which is the desired Row of holes. The foil claims to be punched:
web 3 is on a guide roller 4 to the Patric cylinder 1 out, where the film 3 against the 1st device for punching films, z. B. end faces of the pins 2 is printed and the 55 is pre-cut from paper with a circumferential patrix hole. There is a number of cylinders and one which can be pressed against them and has individual pressure rollers5 arranged in such a way that tangen-ribbed pressure roller, thereby getial frictional forces at the point of contact with the ke η η ζ calibrate η et, that the pressure roller is made from min-foil 3, through which the perforated parts of at least two of the film are removed independently and individually. The pressure rollers 5 rotate 60 adjustable individual pressure rollers (5) from small opposite to the patrice cylinder so that rer width than the patrice cylinder (1) exists,
the circumferential speed of the rollers 5 and the second device according to claim 1, characterized ge-patrice cylinder 1 have the same direction, where indicates that the individual pressure rollers (5) over at the pressure rollers 5 with a much higher the circumference of the patrice cylinder (1) distributed at circumferential speed. The 65 are ordered. Pressure rollers 5 are arranged on support arrangements 6 3. Device according to claim 1 and 2, there- net, which are laterally displaceable on a rod 7, characterized in that the oblique-angled and by belts 8 from a common rib (10) of each associated with an axis