US3037411A - Apparatus for severing and distributing sheets from a web of paper or tobacco - Google Patents

Description

June 5, 1962 AKE R. SKARSTRQM 3,037,411

APPARATUS FOR SEVERING AND DISTRIBUTING SHEETS FROM A WEB OF PAPER 0R TOBACCO Filed Jan. 13, 1959 5 Sheets-Sheet 1 June 5, 1962 I AKE R. SKARSTRGM 3,037,411 APPARATUS FOR SEVERING AND DISTRIBUTING SHEETS FROM A WEB OF PAPER 0R TOBACCO Filed Jan. 13, 1959 3 Sheets-Sheet 2 June 5, 1962 AKE R. sKARsTRM 3,037,411 APPARATUS FOR SEVERING AND DISTRIBUTING SHEETS FROM A WEB OF PAPER OR TOBACCO 3 Sheets-Sheet 3 Filed Jan. 13, 1959 United States Patent M APPARATUS FOR SEVERENG AND DISTRIBUTING SHEETS FROM A WEB OF PAPER 0R TOBACCQ Ake R. Skiirstriim, Stockholm-Vallingby, Sweden, assignor to Arenco Aktiebolag, Stockholm, Sweden, a Swedish joint-stock company Filed Jan. 13, 1959, Ser. No. 786,533 Claims priority, application Sweden Jan. 22, 1958 4 Claims. (Cl. 83-152) The present invention relates to apparatus for severing sheets from the leading end of a Web of paper or tobacco and distributing the severed sheets. According to the invention a sheet carrier for conveying the sheets from a band end supporting die constitutes a stamp coacting with said die to out said sheets. This means that separate means hitherto used for cutting the sheets and transferring them from the die can be replaced by a single means achieving both said operations.

The die may have a band end supporting member enclosing the knife and in such case the sheet carrier may, according to a feature of the invention, comprise a countershear coacting with said knife.

In a preferred embodiment of the invention said knife, consisting, for example, of a band or wire, is secured to a holder and enclosed in a groove in a face of said band end supporting member remote from said holder, said supporting member being mounted for yielding movement towards said holder, said sheet carrier having a groove adapted to receive said knife when said sheet carrier engages and forces said supporting member against said holder. The sheet carrier is preferably adapted to transfer said sheets from a substantially vertical sheet receiving position on said die to a substantially horizontal delivery position adjacent an operating surface, for example, a cigar bunch rolling table, whereby said sheet carrier is slidably mounted on a rotatable guide member for supporting said carrier when being turned from its vertical sheet receiving position to its horizontal delivery position.

The invention will be more particularly described, by way of example, with reference to the accompanying drawings, in which:

FIGURES 1 and 2 are an elevational side view and an elevational front view, respectively, of a portion of a cigar bunch machine provided with the apparatus embodying the invention;

FIGURE 3 is an elevational sectional view taken on the line III-III of FIGURE 2;

FIGURE 4 is an elevational sectional view taken on the line IV-IV of FIGURE 3;

FIGURE 5 is .a substantially horizontal sectional View taken on the line VV of FIGURE 1; and

FIGURE 6 is an enlarged view of a portion of FIG- URE 3.

Referring to FIGURES 1 and 2 of the drawing, a web B of paper or tobacco sheet material forms a roll A mounted on a rotatable shaft 1. The Web B is unwound from the roll A and supplied to a cutting device D for severing sheets from the leading end portion of the web B. The cut sheets are successively transferred from the cutting device D to a cigar bunch rolling table C.

The web B is advanced beneath a guide roller and between .a feed roll 2 and a roll 3 pressing the web yieldingly against the feed roll 2. The feed roll 2 is, by means of two bearings 6, rotatably mounted on a shaft 5 which is rotatably mounted in the machine frame 4. The feed roll 2 and the shaft 5 are interconnected by an overrunning clutch 7 of a standard type permitting positive drive of the feed roll 2 only counterclockwise as indicated in FIGURE 3. One of the bearings 6 is associated with a spring loaded brake 8 preventing the 3,037,411 Patented June 5, 1962 feed roll 2 from rotating counterclockwise (FIGURE 3) relative to the shaft 5. The leading end of web B suspended from the rolls 2 and 3 is introduced into the cutting device D between a yielding platen 11 and a stamp 12. As described hereinafter the stamp 12 serves also as .a sheet carrier. The platen 11 forms part of a cutting die and acts as a web supporting or backing member and is connected with a holder 15 by means of bolts 13 screwed into the platen. The holder 15 is fixed to the frame 4. The bolts 13 are enclosed by compression springs 17 located in openings 16 in the holder 15 and engaging annular flanges 18 in the openings 16 so that they have a tendency to urge platen 11 away from holder 15 until the heads of the bolts 13 abut the flanges 18. To the fixed holder 15 .are secured pins 19 to which is secured a steel band 20. The steel band 20 is coiled at its ends about the pins 19 which can be rotated and set relative to the holder 15 so that the band 20 (or a steel Wire replacing same) can be tensioned. The steel band 20 forms a cutting edge and is enclosed in a groove 21 in the face of the platen 11 remote from the holder 15. The groove 21 is located opposite to a similar groove 22 in the stamp and sheet carrier 12 when the latter occupies the position shown in FIGURES 3 and 6, viz.: in front of platen 11.

The stamp 12 also serving as a sheet carrier has, below its groove 22, perforations 14 connected to a flexible suction conduit 26 connected to .a diagrammatically illustrated fan 40. The sheet carrier 12 is rotatably mounted on a spindle 23 and secured to two slide rods 24 slidably mounted in a guide member consisting of a crosshead 25, which is secured to a shaft 27 freely rotatably mounted in the frame 4. The spindle 23 is secured to one end of an arm 28 the other end of which is fixed to a shaft 29 rotatably mounted in the frame 4. T o the shaft 29 is also secured a toothed sector 30 which meshes with a toothed segment 31 on an arm 32 fixed to a shaft 33 which is rotatably mounted in the frame 4. To the shaft 33 is secured still another arm 34 carrying a cam follower 36 engaging a cam .35 which is secured to a drive shaft 37 rotatably mounted in the frame 4. A driving rope 38 is adapted to run over two rope pulleys 39 and 40 secured to the shafts 5 and 27, respectively, and being devised as step pulleys for providing a variable transmlssion ratio.

In the operation of the apparatus describedabove the sheet carrier 12 is reciprocated between the sheet receiving position of FIGURES 1 and 3 in front of the platen 11 and the dash and dot sheet delivery position of FIGURE 1 above the bunch rolling table C. The sheet carrier 12 is swung by the arm 28 from the platen 11 down to the bunch rolling table C whereby the rods 24 slide in the cross-head 25 on moving the carrier 12 awayfrom the platen 11 and in a direction against the shaft 27 which will be rotated through approximately counterclockwise (FIGURE 3). The counterclockwise rotary motion of the shaft 27 is transmitted by the rope transmission 38-40 to the shaft 5 so that said shaft will rotate the feed roll counterclockwise (FIGURE 3) thereby to feed the leading end portion of the web B downward by a certain distance the length of which will depend on the ratio of the transmission 3840. When the sheet carrier 12 is swung back by the arm 28 upwardly against the platen 11 the shaft 27 is rotated clockwise (FIGURE 3) but, due to the provision of the overrunning clutch 7 such clockwise rotation will not be transmitted to the shaft 5 of the feed roll 2. When the sheet carrier 12 delivers a sheet (binder) to the bunch rolling table C the suction effect in the sheet carrier will be disconnected simultaneously as the rolling table C commences to exert a suction effect thereby to attract the binder. When the sheet carrier 12 is swung upwards to the cutting and sheet receiving position in front of the platen 11 the suction effect in the sheet carrier will remain disconnected. The sheet carrier 12 is pressed against the platen 11 so that the latter will yield, against the action of the springs 17, against the fixed holder 15 for the cutting steel band 20 so that the cutting edge of said band moves out of the groove 21 of the platen 11 and into the groove 22 of the sheet carrier 12 as shown in FIGURE 6 whereby it will sever the leading end portion of the web B from said web. Simultaneously with or shortly before the severing action the suction effect in the combined stamp and sheet carrier 12 will be re-established so that said carrier will retain the severed sheet when moving down to the bunch rolling table C to deliver said sheet thereto.

Various changes in the specific forms and arrangements shown and described may be made without departing from the spirit of the invention. The platen 11, holder 15 and knife 20 may, for example form part of the sheet carrier and the stationary die may consist of a member similar to the carrier 12 as shown and described. Thus, the term stamp designates the movable sheet carrier irrespective whether it is devised like a die or not and the term die designates the cutting bed with which said sheet carrier coacts.

I claim:

1. In an apparatus for cutting sheets of paper or tobacco and transferring them to a delivery station, a stamp having a groove, a backing plate having a face provided with a groove opposite the groove in said stamp, a stationary holder located adjacent to said backing plate remote from its grooved face, a cutting blade extending into and longitudinally of said plate groove and being secured to said holder, a yieldable mount mounting said backing plate for yielding movement towards said holder, oscillatory means for moving said stamp transversely against and into engagement with said backing plate to push said plate towards said holder to make said blade project out of said backing plate groove and enter said stamp groove to cut a sheet, and means for moving said stamp to transfer the cut sheet from said backing plate to said delivery station.

2. The combination with a delivery station having a I substantially horizontal operating surface, of a die having a substantially vertical paper or tobacco web backing face, an oscillatory rotatable guide member, a stamp having a perforated suction surface, a suction conduit connected to the perforation of said surface, said stamp being slidably mounted on said guide member, and oscillatory means for moving said guide member to cause said stamp to approach said die in a substantially vertical position to sever a sheet from said web and attract said sheet by suction and means operating said guide members to oscillate and rotate said stamp into a substantially horizontal sheet delivery position above said operating surface.

3. In a cigar bunch machine, a bunch rolling table, a

binder cutting bed, a binder cutter and carrier having a suction surface, and means for moving said cutter and carrier against said cutting bed to receive by its SUCUOII surface a binder therefrom and away from said cutting bed to deliver said binder to said rolling table, said cutting bed having a rigidly mounted cutting die having a cutting edge and a yielding backing plate which has a binder backing surface with a recess enclosing said cutting edge, said binder cutter and carrier having in its suction surface a groove complementary to said cutting die and adapted to receive said cutting die and form a countershear for said cutting die, and means for pressing the suction surface of said binder cutter and carrier against the binder backing surface of said backing plate to make said plate yield and said die move out of said backing surface and enter the groove of said binder cutter and carrier.

4. In a cigar bunch machine, a substantially horizontal bunch rolling table, a binder cutting bed, a binder cutter and carrier having a suction surface, and means for moving said cutter and carrier against said cutting bed to receive by its suction surface a binder therefrom and away from said cutting bed to deliver said binder to said rolling table, said cutting bed having a rigidly mounted cutting die having a cutting edge and a yielding backing plate which has a substantially vertical binder backing surface with a recess enclosing said cutting edge, said binder cutter and carrier having in its suction surface a groove complementary to said cutting die and adapted to receive said cutting die and form a countershear for said cutting die, means for conveying a leading end portion of a tobacco Web into a position in front of said binder backing surface, means for pressing the suction surface of said binder cutter and carrier against the binder backing surface of said backing plate to make said plate yield and the cutting edge of said die move out of said supporting surface and enter the groove of said binder cutter and carrier to sever a binder from said leading Web end portion, and means for first retracting said cutter and carrier with the end binder from said backing plate and thereafter rotating and moving said cutter and carrier into a substantially horizontal binder delivery position above said bunch rolling table.

References Cited in the file of this patent UNITED STATES PATENTS 589,884 Williams Sept. 14, 1897 1,417,609 Koerner May 30, 1922 1,738,354 Cannard Dec. 3, 1929 2,170,646 Rosenberg Aug. 22, 1939 2,302,855 Hallman Nov. 24, 1942 2,466,291 Williams Apr. 5, 1949 2,781,843 Cornstock Feb. 19, 1957 FOREIGN PATENTS 828,009 France Feb. 2, 1938 1,016,148 Germany Sept. 19, 1957

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