US3589223A

US3589223A - Motor-driven machines, in particular for punching paper or the like

Info

Publication number: US3589223A
Application number: US784349A
Authority: US
Inventors: Walter Schmidt
Original assignee: Individual
Current assignee: Individual
Priority date: 1967-12-19
Filing date: 1968-12-17
Publication date: 1971-06-29
Anticipated expiration: 1988-06-29
Also published as: JPS4835994B1

Abstract

A paper-cutting machine for punching out labels, envelopes and the like in which more than one cutting operation can be carried at one time including: a hydraulically driven slide guided on vertical guide members between a bottom plate and a top plate, and cutting blade arranged between the plates for cutting the paper as desired, the paper then deposited on the top plate where it is removed by an ejector mechanism.

Description

United States Patent I I UN 1 Inventor v Walter Schmidt KarLsbei-gallee 3L I000 Berlin 22, Germany Appl. N6v 784,349 Filed Dec. 17, I968 Patented June 29, 1971 Priority Dec. 19, I967 Germany I I5 61 514.1

MOTOR-DRIVEN MACHINES, IN PARTICULAR FOR PUNCI-IING PAPER OR THE LIKE 5 Claims, 5 Drawing Figs.

us. Cl 83/90, 83/569 Int. Cl 826d 7/06 Field of Search 83/90. 566, 569

[56] References Cited UNITED STATES PATENTS 3,290,977 12/1966 Brestel ct a] 6. 83/566 X 3,314,323 4/1967 Busch et a1. 83/569 FOREIGN PATENTS 838,740 5/1952 Germany 83/90 Primary ExaminerWilliam S. Lawson Att0rneyWatson, Cole, Grindle & Watson ABSTRACT: A paper-cutting machine for punching out labels, envelopes and the like in which more than one cutting operation can be carried at one time including: a hydraulically driven slide guided on vertical guide members between a bottom plate and a top plate, and cutting blade arranged between the plates for cutting the paper as desired, the paper then deposited on the top plate where it is removed by an ejector mechanism.

PATENTEH JUN29 IBII 3. 5 9,223

sum 2 or a /N VENT 0R 1 Wa/fer- SCHMIDT MOTOR-DRIVEN MACHINES. IN PARTICULAR FOR PUNCHING PAPER OR THE LIKE The present invention relates to motor-driven paper-cutting machines for cutting items as labels. envelopes and the likev A disadvantage of known machines of this type is that only one cutting operation can be carried out at one time. An object of the present invention is to carry out more than one cutting operation at one time. A machine for carrying out the invention may handle a maximum format of 450 340 mm. in order to make it possible to cut out two or four blanks when dealing with smaller formats. In practice, it has been found that when cutting smaller labels, as many as eight blanks can be produced in one stroke of the cutter.

The invention consists in a paper-cutting machine comprising a pair of spaced-apart plates, guide members disposed between the plates, a slide for supporting paper mounted for movement between the plates along the guide members,

, cutting blades disposed between the plates an ejector mechanism mounted on one of the plates whereby .upon movement of the slide from the said other of the plates to the said one of the plates, paper is brought into contact with the cutting blades, cut and then is removed by the ejector mechanism.

Preferably, the slide includes a plurality of longitudinal and lateral cutouts, and a plurality of stop members disposed on the said one of the plates and cooperating with the cutouts for guiding paper supported on the slide.

Preferably, clamping dogs are provided on the said one of the plates for adjustably positioning the cutting blades, and include locating pins for supporting the clamping dogs from the i said one of the plates.

Preferably, the ejector mechanism includes a pusher member mounted for reciprocation on the said one of the plates, a toothed rack connected to the pusher member adapted to be driven by a motor, and an adjustably mounted switch actuator disposed on the toothed rack for actuating a switch. i

In known machines of this type an average of 100,000 labels per hour can be cut out, in comparison to the instant device wherein somewhere between 40,000 and 800,000 labels per hour can be produced.

An embodiment of the invention will now be described with reference to the accompanying drawings wherein:

FIG. 1 is an overall side elevation of a paper-cutting machine according to the invention;

FIG. 2 is a plan view ofa slide;

FIG. 3 is an inverted section of the slide shown in FIG. 2;

FIG. is a side elevation of a clamping dog turned through 90"; and FIG. Sis a plan view of the clamping dog of FIG. 4.

The paper-cutting machine according to the invention includes a subframe 1 with a bottom plate 3 secured thereto.

Four vertical guide members are mounted on the bottom plate 3. A top plate 4 is disposed on the top of vertical guide members 5. A slide is disposed between the members 5 for vertical movement thereon. The slide includes bearing 36 located at the corners thereof for cooperation with the members 5. As shown in FIG. 2, the slide has a plurality oflateral and longitudinal cutouts or slots 37. Adjustable stop members 7 are adjustably secured to the bottom plate 3 and arranged to cooperate with the cutouts 37 to thereby guide the stack of paper which is to be cut. The upward and downward vertical movement of the slide 2 is effected by a hydraulic system 6 including a cylinder and piston unit. The hydraulic system 6, in particular the cylinder, as shown in FIG. I, is secured to the bottom plate 3. The piston on the other hand is secured to the slide 2 by means ofa threaded sleeve 38 as shown in FIG. 3.

Cutting blades 16 are fixedly arranged on the top plate 4 and in response to the upward movement of the slide 2 carrying a stack of paper cut the labels according to predetermined sizes. The cutting blades 16 are adjustably secured to the top plate 4 by means of clamping dogs 11. The clamping dogs 11 are secured to the top plate 4 by locating pins 39, through the medium of bearing blocks 40, and guided by clamp rails 41.

- Clamping screws 42 secure the clamping dogs 11 in the rails 41 by pinching a threaded section of the dog which contains a slot 43 which in turn locks the threaded spindle 44 and therefore the clamping dog 11 in the desired position. By releasing the clamping screw 42, the threaded spindle maybe rotated at its adjusting end 12 which in turn adjusts the dog 11 and the blade secured thereto.

After the material has been cut, it is ejected from the machine by an ejector mechanism disposed on the top plate 4. This ejector mechanism includes a pusher member 33, a toothed rack 32 driven by a motor 31 and connected to the pusher member 33. An adjustably mounted switch actuator 35 is arranged on the toothed rack 32 and is adapted to actuate the switch 34 so mounted on the top plate 4.

Paper-guiding elements 8 are provided on the top plate 4 for guiding the cut labels or the like in ordered fashion when the labels are being ejected by the pusher member 33 onto a conveyor 9. The position of the guiding elements may be adjusted in response to the sizes oflabels which are cut.

In addition to a hydraulic system 6 housed in the subframe 1 is a reservoir 27 containing hydraulic: fluid for the hydraulic system 6. A drive motor 20 with a clutch 21 is secured to the subframe l. The subframe 1, which is formed as a cylinder, is provided with a door 19 which carries an electrical control panel 18 with a switch lever 23. In addition, an oil level indicator 26, a pressure gauge 24 or similar fittings may be located on the subframe I.

I claim:

1. A paper-cutting machine comprising a pair of spacedapart plates, guide members disposed between the plates, a slide for supporting paper mounted for movement between the plates along the guide members, cutting blades disposed between the plates, an ejector mechanism mounted on one of the plates whereby upon movement of the slide from the said other of the plates to the said one of the plates, paper is brought into contact with the cutting blades, cut and then is removed by the ejector mechanism, the slide including a plurality oflongitudinal and lateral cutouts, and a plurality of stop members are disposed on the said one of the plates and are operable with the cutouts for guiding paper supported on the slide, and clamping dogs provided on the said one of the plates, for adjustably positioning the cutting blades and the clamping dogs include locating pins for supporting the clamping dogs from the said one of the plates, threaded members connected to clamping dogs, means for adjusting the cutting blades, clamp rails arranged for guiding the clamping dogs, and slot and screw means on the clamping dogs for locking the latter in position and releasing the clamping dogs to permit rotation of the thread members.

2. A paper-cutting machine comprising a pair of spacedapart plates, guide members disposed between the plates, a slide for supporting paper mounted for movement between the plates along the guide members, cutting blades disposed between the plates, an ejector mechanism mounted on one of the plates whereby upon movement of the slide from the said other of the plates to the said one of the plates, paper is brought into contact with the cutting blades, cut and then is removed by the ejector mechanism, the slide including a plurality of longitudinal and lateral cutouts, and a plurality of stop members are disposed on the said one of the plates and are operable with the cutouts for guiding paper supported on the slide and guiding elements provided on the said one of the plates for guiding the cut paper during ejection by the ejector mechanism.

3. A paper-cutting machine as claimed in claim 2, wherein the ejector mechanism includes a pusher member mounted for reciprocation on the said one of the plates, a toothed rack connected to the pusher member adapted to be driven by a motor, and an adjustably mounted switch actuator disposed on the toothed rack for actuating a switch.

4. A paper-cutting machine as claimed in claim 3, wherein the one of the plates is disposed below the other of the plates and the slide is vertically movable.

5. A paper-cutting machine as claimed in claim 4, wherein the slide is hydraulically driven by a cylinder and piston unit disposed in a subframe located beneath the bottom plate.

Claims

1. A paper-cutting machine comprising a pair of spaced-apart plates, guide members disposed between the plates, a slide for supporting paper mounted for movement between the plates along the guide members, cutting blades disposed between the plates, an ejector mechanism mounted on one of the plates whereby upon movement of the slide from the said other of the plates to the said one of the plates, paper is brought into contact with the cutting blades, cut and then is removed by the ejector mechanism, the slide including a plurality of longitudinal and lateral cutouts, and a plurality of stop members are disposed on the said one of the plates and are operable with the cutouts for guiding paper supported on the slide, and clamping dogs provided on the said one of the plates, for adjustably positioning the cutting blades and the clamping dogs include locating pins for supporting the clamping dogs from the said one of the plates, threaded members connected to clamping dogs, means for adjusting the cutting blades, clamp rails arranged for guiding the clamping dogs, and slot and screw means on the clamping dogs for locking the latter in position and releasing the clamping dogs to permit rotation of the thread members.

2. A paper-cutting machine comprising a pair of spaced-apart plates, guide members disposed between the plates, a slide for supporting paper mounted for movement between the plates along the guide members, cutting blades disposed betweEn the plates, an ejector mechanism mounted on one of the plates whereby upon movement of the slide from the said other of the plates to the said one of the plates, paper is brought into contact with the cutting blades, cut and then is removed by the ejector mechanism, the slide including a plurality of longitudinal and lateral cutouts, and a plurality of stop members are disposed on the said one of the plates and are operable with the cutouts for guiding paper supported on the slide and guiding elements provided on the said one of the plates for guiding the cut paper during ejection by the ejector mechanism.