US2026402A - Machine for cutting paper or the like - Google Patents

Description

1935- P. G. SCHLEMMER v MACHINE FOR CUTTING PAPER OR THE LIKE Filed NOV. 17, 1933 3 Sheets-Sheet l Dec. 31, 1935. P SCHLEMMER 2,026,42

MACHINE FOR CUTTING PAPER OR THE LIKE Filed Nov. 17, 1953 3 Sheets-Sheet 2 A TTORNEY5.

1935. P. G. SCHLEMMER MACHINE FOR CUTTING PAPER OR THE LIKE Filed Nov. 17, 1955 5 Sheets-Sheet 3 w ,4 BY %0c/6 4 AT TORNEYS Patented Dec. 31, 1935 ATENT OFFICE MACHINE FOR CUTTING PAPER- OR THE LIKE Phil G. Schlemmer, Nanuet, N. Y., assignor, by

mesne assignments, to Rose Barbara Henderson Application November 17, 1933, Serial No. 698,382

3 Claims. (01. 16442) My invention relates to a new and improved machine for cutting Cellophane, paper, or other material which is used for wrapping purposes.

One of the objects of my invention, is to provide a machine which can cut a ribbon of cellophane or the like, in a direction which is inclined to the longitudinal axis of said ribbon, in order to produce a number of sheets of wrapping material, each said sheet being a parallelogram having oblique angles.

Another object of my invention is to produce a machine in which the angle of cutting, relative to the axis of the ribbon of the material, can be varied.

Another object of the invention is to provide an automatic and adjustable feed, for feeding the ribbon from a roll thereof.

Other objects of my invention will be set forth in the following description and drawings which illustrate a preferred embodiment thereof, it being understood that the above general statement of the objects of my invention is intended merely to generally explain the same and not to limit it in any manner. 7

Fig. 1 is a plan view of a machine which embodies my invention. a

Fig. 2 is a sectional view on the line 2-2 of Fig. 1.

Fig. 3 is a detail front elevation of the mechanism for feeding the material from the roll or spool thereof.

Fig. 4 is a sectional view on the line 44 of Fig. 1. V

Fig. 5 is a plan view of a blank or section which has been cut from the strip of material.

Fig. 6 is a view showing how the blank of Fig. 5 has been folded in order to enclose any object such as a handkerchief, hosiery, or the like.

Referring to Figs. 1 and 2, the machine is supported upon a rectangular frame I having tierods Ia. At one-end of said frame uprights 2 are provided. A roll of material R is suitably wound upon the mandrel 3 of a spool having flanges l. The mandrel 3 is hollow and a shaft 5 extends through said mandrel and said shaft 5 and said mandrel 3 are suitably connected to each other so that they turn in unison. The shaft 5 is supported in bearings which are provided atthe tops of the uprights 2.

The shaft 5 is provided with collars 6, in orde to prevent any longitudinal shifting of said shaft 5 in its bearings. The spool is therefore freely turnable so that the Cellophane or other ribbon material can be withdrawn therefrom.

Referring to Fig. 2, the Cellophane C (or integral end pins 8-which can slide up and down in grooves 5, which are provided in uprights l0. Springs II have their lowerends connected to said integral pins 8.

The uprights l 0 are provided with caps I2, and the upper ends of the springs l I are connected to the tops of said caps l2. The guide rod 1 is therefore yieldably held in the position shown in Fig. 2, so that if pressure is exerted upon the material C, said guide rod 1 can move below the position indicated in Fig. 2.

Likewise if the tension on the material is diminished, said guide rod 1 can slide upwardly from the position shown in Fig. 2. The material C passes around aroller [4, which is loosely. mounted upon the shaft l5, so that the roller M can turn freely, relative to said shaft l5. If deextends through a gear housing l9.

As shown in Fig. 3 a pawl 20 is pivotally connected to the arm H5 at 2| and the usual spring 22 is provided for holding the tip of said pawl in contact with the ratchet teeth of a ratchet wheel 23.

As shown in Fig. 1 said ratchet wheel 23 is also mounted upon the shaft H. The arm IS-is loosely mounted upon the shaft ll, so that the backward or counterclockwise turning movement of. the arm I6, will not produce a corresponding backward movement of the shaft [1. A gear 24 is either integral with, or is suitably connected to the ratchet wheel 23, so that the gear 24 and the ratchet wheel 23 turn in unison.

Referring to Fig. 3, the gear 24 meshes with a smaller gear 25, which is mounted upon the shaft l5 and said shaft l5 has suitable-bearings fastened to theframe of the machine.

As shown in Fig. 1, the shaft l5 has a gear 21. As shown in Fig. 2 this gear 2! meshes with a smaller gear 28 which is mounted upon the shaft 29. The gear 28 meshes with a gear 30, which is mounted upon the shaft 3|.

The shaft 29 is provided with a feed roll 32, which can be made of steel or any other suitable metal, and said feed roll 35 is provided with a suitable number of grooves 33.

In this particular embodiment there are eight of such grooves 33, but the number can be varied.

The shaft 3| has a suitable number of upper feed rolls 34.

In the particular embodiment shown there are three such upper feed rolls 34, said rolls being spaced from each other. The feed rolls are fastened to their respective shafts, so as to turn in unison therewith.

A transverse bar 35 is connected to the frame I of the machine. A bar 39 is supported above said bar 35, by means of spacing blocks 31 which are provided at the ends of said bar 35. Suitable fastening means pass through the ends of the bars 36 and 35 and through said spacing blocks 31.

Upper guide bars 38 are connected to the underside of the transverse bar 36, by any suitable fastening means, in order to prevent the strip of material from moving upwardly, after said strip of material passes the gripping portions of the feed rollers. Some of these upper guide bars 38 have their ends located in the spaces between the upper feed rolls 34.

Likewise and as shown in Fig. 1, one of said upper guide bars 38 is located between the frame I and the adjacent upper feed roll 34. Lower guide bars 39 are located in slots of the lower lateral bar 35, and the tapered ends of said lower guide bars 39 extend into the slots 33 of the lower feed roll.

Referring to Fig. 1 said lower guide bars 39 are provided with slidable members 49, which can be adjustably connected to said members 39 by means of set screws 4|. The members 39 are fixed in the slots of the bar 35 and the sliding adjustment of the members 40 in effect increases the length of said lower guide bars 39.

In order to adjustably limit the counterclockwise movement of the arm IS, the jack-shaft I1 is provided with an arm 42 which is turnable relative to said shaft l1. The arm 42 is provided with a pin 43 which slides in the slot 44, which is provided in one wall of the housing l9.

As shown in Fig. 1, the shank of the pin 43 has a threaded portion and this threaded portion is provided with a nut 45, so that the arm 42 can be adjusted and the arm can then be clamped against the wall of the housing I9.

The inner end of said pin 43 is sufficiently long so as to intersect the path of movement of the arm I6.

A tension spring 46 has one end connected to the housing l9, and the other end is connected to the arm H at 41, so that said tension spring 46 automatically turns the arm IS in the reverse direction, until said reverse movement is stopped by the pin 43.

Referring to Fig. 1, a cutter support 48 is adjustably clamped to a portion of the frame I, by means of a set screw 49. The cutting device comprises a lower cutting member 59 and an upper cutting member 5|. The lower member 56 has one end fitting into a slot which is provided in the head of the pin 55. Said pin has a hollow shank 53 which passes through the support 48.

A washer is located upon the exterior of said hollow shank, and a clamping screw 51 has its shank entering the internally threaded hollow shank 56 of the pin 55. Hence when the clamping screw 51 is turned, it clamps the pin 55 to the mount 48.

Upon loosening the clamping screw 51, the member 55 can be turned so that the lower blade 56 can be held at any suitable angle to the direction of the movement of the strip. The upper blade 5| and the lower blade 50 are connected by a pivot member 58.

As shown in Fig. 4, the frame I of the machine is provided with an inwardly extending bracket or arm 59. The pivot member 58 is supported by an arm 66, having a reduced end 6|, which is turnably located in a suitable opening of the arm 59.

The pivot pin 58 has a housing 62 connected thereto, and said housing is provided with balls or other suitable anti-friction members which are laterally pressed against the upper blade 5|. The upper blade 5| has an arm 63 rigidly connected thereto.

A tension spring 64 is connected to said arm 63 and to a pin which is connected to the arm 59, so that said spring 64 normally holds the upper blade 5| in the position shown in Fig. 4. 10

The arm I8 is provided with an extension 65, which may be integral therewith.

As shown in Fig. 3, said arm 65 abuts the pawl 66, which is pivotally connected at 61 to the lever 63, which is pivotally connected at 69 to an arm of the housing l9. A compression spring 19 presses the pawl 66 against a stop pin 1|. The lever 68 is connected by means of a link 12, to the arm 63 of the upper blade 5|.

The link 12 may be connected to the arm 63 and to the lever 68, by means of ball-and-socket or other universal-joint connection, in order to prevent binding. 7

When the lever I6 is turned in the clockwise direction to feed the material, its extension 65 turns the pawl 66 in the counter-clockwise direction, so that the extension 65 passes beyond said pawl 66, and the pawl 36 is then turned back by spring 19 until it again abuts the stop pin 10. Hence the lever 63 is not operated when the arm I6 is turned in the clockwise or feeding direction.

During the reverse movement of the arm IS, the extension 65 bears against the upper inclined surface of the pawl 66, thus causing the lever 68 to be turned in the counter-clockwise direction, thereby upwardly moving the link 12 so that the upper blade 5] is downwardly turned in order to cut the sheet of material. The extension 65 can thus move back to the position shown in Fig. 3 and the tension spring 64 then raises the upper blade 5| to the position shown in Fig. 4.

Hence, after each intermittent feeding movement of the material, the same is automatically out along a line which is inclined to the direc- 155 tion of feed, and said inclination can be adjusted.

In order to regulate the pressure of the feed rollers against the strip of material, the shaft 3| of the upper rollers 34, is mounted in bearings 13 which are vertically slidable in suitable guides provided in the bearing l8. Each said bearing 13 is provided with a pin 14 Whose lower end is threaded so that said lower end engages an internally threaded recess of said bearing 13. Eachflii pin 14 is slidably mounted in an opening of the respective member l8, and each said pin 14 can be upwardly moved by turning a handle member 15, which abuts the adjacent wall of the mem-. ber l8. 70

A compression spring 16 is provided around each pin 14, and said compression springdownwardly forces the respective member 13.

When the handle 15 is in the vertical position shown in Fig. 3, the bearing 13 is in its highest 76 position. When the handle I is in the horizontal position shown in Fig. 1, said member I3 is in its lowest position.

The severed pieces of cellophane or other material are fed away from the cutting mechanism by pairs of additional feed rolls80 and 8|. The feed rolls 8| are mounted upon a shaft 82 which can be driven by a belt or by any other suitable means. The severed pieces of material are guided upon rods 83, until they come to the front end of the machine.

While I have shown a hand-operated arm l6, it is obvious that this arm could be automatically turned back and forth. 7

The rods 83 are provided with collar spacers lb and Id, which are mounted on the transverse rods I a and la.

The feed rolls 80 are mounted upon a shaft 80a.

The rods 83 may have longitudinally adjustable extensions 83a.

Fig. 6 shows how folds or flaps C are formed in the blank which is shown in Fig. 5, so as to make a rectangular package.

It will be noted that the strip of material is free from support at the place where thecutting mechanism operates, that the feed rolls 33 and 34 push the material towards the cutting mechanism, and the feed rolls 80 and 8| pull the severed strips of material away from the cutting mechanism.

As the material is pushed forwardly by the feed rolls 34 and 32, said material is engaged between the feed rolls 8!] and 8 I, before the cutting mechanism is operated. V

The feed rolls 80 and 8| are intermittently operated by any suitable mechanism, in order to forwardly feed the severed strips of material.

I have shown a preferred embodiment of my invention, but it is clear that numerous changes and omissions can be made without departing from the spirit of my invention.

I claim:

1. In a device of the type described, superposed feed rolls which are mounted upon superposed shafts, gears connecting said shafts so that they turn in opposite directions, a ratchet wheel, connecting gear means which connect said ratchet wheel to one of said gears, a pivoted arm having a pawl which is adapted to intermittently turn 5 said ratchet wheel in the same direction when said arm is turned to and fro, said feed rolls being operative to intermittently feed a strip of material, and cutting mechanism which is operable in a. direction which is inclined to the line of feed. 10 2. In a device of the type described, superposed feed rolls which are mounted upon superposed shafts, gears connecting said shafts so that they turn in opposite directions, a ratchet wheel, a

connecting gear which connects said ratchet wheel to one of said gears, a pivoted arm having a pawl which is adapted to intermittently turn said ratchet wheel in the same direction when said arm is turned to and fro, said feed rolls being operative to intermittently feed a strip of material, and cutting mechanism which is operable in a direction which is inclined to the line of feed, and additional feed mechanism which is adapted to engage and forwardly feed the severed strips of material.

3. In a device of the type described, first superposed feed rollswhich are mounted upon superposed shafts, gears connecting said shafts so that they turn in opposite directions, a ratchet wheel, connecting gear means which connect said ratchet wheel to one of said gears, a pivoted arm having a pawl which is adapted to intermittently turn said ratchet wheel in tlie same direction when said arm is turned to and fro, said feed rolls being operative to intermittently feed a strip of material, cutting mechanism which is operable in a direction which is inclined to the line of feed, second and intermittently operated and superposed feed rolls to which the material is fed by the first feed rolls to be gripped by the second feed rolls prior to each cutting operation, and tension means adapted to exert tension upon said material in advance of said feed rolls.

PHIL G. SCHLEMMER.

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