Method and device for handling blanks for packages for products of the cigarette industry from a material web
Patent Information
- Application Number
- EP2024711883
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-03-29
- Filing Date
- 2024-03-14
- Publication Date
- 2026-02-11
AI Technical Summary
Existing devices for separating blanks, such as collars, from a material web in the cigarette industry struggle with space constraints, complex adjustments, and the production of contoured blanks, particularly due to wear-related issues and the need for precise parallel alignment of cutting tools.
The device employs a rotatable knife roller with adjustable cutting knives and a counter-cutting element, where the counter-cutting element is mounted in a holder adjustable via a wedge-shaped element, and the knife roller can be adjusted for inclination relative to the counter-cutting element, ensuring parallel alignment and minimizing wear-related complications. Additionally, the system includes slalom belts for transporting and bending blanks, and a molding strip for returning them to an unfolded state, along with pivotable rollers and a common gear drive for compact operation.
This solution simplifies adjustments, ensures precise cutting, reduces installation space, and allows for the production of contoured blanks without active organs, maintaining efficient operation and minimizing downtime due to wear, while enabling continuous processing without stopping the slalom belts.
Smart Images
Figure EP2024056794_03102024_PF_FP_ABST
Abstract
Description
[0001] Method and device for handling blanks for packs for products of the cigarette industry from a material web
[0002] Description
[0003] The invention relates to a device for separating blanks, in particular collars, for packs for products of the cigarette industry from a material web, comprising a rotatable knife roller, on the surface of which one or more cutting knives are arranged and comprising a preferably rod-shaped counter-cutting member, wherein the material web can be guided between the knife roller and the counter-cutting member, and wherein blanks can be separated from the material web by the interaction of a cutting knife and the counter-cutting member upon rotation of the knife roller, according to the preamble of claim 1.
[0004] Furthermore, the invention relates to a corresponding method according to the preamble of claim 12.
[0005] Devices and methods of the above type are known in practice in various variants. Based on this, the invention is based on the object of adding further alternatives to the prior art, particularly with the aim of reducing installation space and / or simplifying adjustment and / or enabling the production of contoured blanks.
[0006] A device for achieving this object has the features of claim 1. Accordingly, it is provided that the counter-cutting element is mounted in a holder and that the holder is adjustable with regard to the distance from the knife roller via a first wedge-shaped adjusting element, and that the knife roller is adjustable with regard to its inclination relative to the counter-cutting element via a second wedge-shaped adjusting element. It has been shown that in this way, simple adjustment of the device is possible, for example, to compensate for wear and tear. By adjusting the inclination, a constant parallel alignment of the knife roller and the counter-cutting element can be ensured, thus enabling uniform cutting.
[0007] Furthermore, it can be provided that the holder of the counter-cutting element is designed as a clamp holder.
[0008] Furthermore, it can be provided that the first wedge-shaped adjusting element extends over substantially the entire width of the knife roller and / or the counter-cutting element.
[0009] Furthermore, it can be provided that the second wedge-shaped adjusting element is designed to align the knife roller parallel to the counter-cutting element.
[0010] According to a preferred further development, it can be provided that the knife roller is held in a pre-tensioned bearing in the region of outer, lateral ends.
[0011] In this way, the play in the bearings can at least be minimized or even eliminated.
[0012] Another solution to the problem mentioned above has the features of claim 6. Accordingly, it is provided that the blanks, preferably cut from a material web by a knife roller, can be gripped by feed rollers and frictionally gripped between slalom belts and transported toward a transfer device. Preferably, a platform is arranged upstream of the transfer device, with which the blanks can be fed to a pocket of a folding turret. This can also be a further development of the invention described above.
[0013] One advantage of this solution may be that the separated blanks can be separated in this way. Another special feature may be that forming rollers are arranged in the area of the slalom belts, which are designed to bend at least parts of the blanks, in particular the lateral folding flaps, while the blanks are transported along the slalom belts.
[0014] An advantage of this solution can be that the cut pieces are processed during transport, so that the slalom belts do not need to be stopped.
[0015] Furthermore, it can be provided that the blanks are guided over at least one forming strip for bending, which is designed following the working area of the forming rollers to return the blanks to the original, in particular unfolded, state, in particular by forming the forming strip(s) with increasing width in the direction of the transfer device.
[0016] This solution is particularly characterized by the fact that the blanks can be returned to the unfolded state in a simple manner, in particular without active organs.
[0017] A further special feature may be that preferential rollers for transporting the material web and / or the blanks are pivotably arranged on crossbeams, in particular in the area of the knife roller and / or in the area of an accelerator roller.
[0018] With the help of the crossbeams, the feed rollers or similar devices can be easily swung out of the way. This makes it easy to thread the material web or cut pieces or remove them in the event of a malfunction.
[0019] A further special feature may be that the clamping pressure of the feed rollers, which are preferably arranged after the knife roller, is adjustable, in particular via threaded pins.
[0020] In this way, it may be possible to easily adjust or readjust the clamping pressure. Preferably, the drive for the feed rollers, knife roller, accelerator roller, and / or slalom belts can be driven via a common gear unit.
[0021] One advantage of this solution is its compact design.
[0022] A device according to the invention has the features of claim 12. It is accordingly provided that the blanks, preferably separated from a material web by a knife roller, are gripped by feed rollers and transported frictionally between slalom belts in the direction of a transfer device, wherein it is preferably provided that a platform is arranged upstream of the transfer device, with which the blanks are fed to a pocket of a folding turret.
[0023] Furthermore, it can be provided that forming rollers are arranged in the region of the slalom belts, which are designed to bend at least parts of the blanks, in particular lateral folding flaps, while the blanks are transported along the slalom belts.
[0024] Preferably, it can be provided that the blanks are guided over at least one forming strip for bending, which, following the working area of the forming rollers, is designed to return the blanks to the original, in particular unfolded, state, in particular by forming the forming strip(s) with increasing width in the direction of the transfer device.
[0025] A further special feature may be that preferential rollers for transporting the material web and / or the blanks are pivotably arranged on crossbeams, in particular in the area of the knife roller and / or in the area of an accelerator roller.
[0026] Furthermore, it can be provided that the drive of the feed rollers, knife roller, accelerator roller, and / or slalom belts is driven via a common gear. Preferred embodiments of the invention are described below with reference to the drawing. In these:
[0027] Fig. 1 shows a first part of a schematic spatial representation of a part of a packaging machine for products of the cigarette industry,
[0028] Fig. 2 a second part of the packaging machine,
[0029] Fig. 3 is a side view of the first part of the packaging machine according to arrow III in Fig. 1,
[0030] Fig. 4 is a side view of the first part of the packaging machine according to arrow IV in Fig. 3,
[0031] Fig. 5 is a vertical section through the first part of the packaging machine along section line V - V in Fig. 1,
[0032] Fig. 6 is a vertical section through the first part of the packaging machine along section line VI - VI in Fig. 3,
[0033] Fig. 7 is a vertical section through the first part of the packaging machine along section line VII - VII in Fig. 4,
[0034] Fig. 8 is a vertical section through the first part of the packaging machine along section line VIII - VIII in Fig. 4,
[0035] Fig. 9 is a vertical section through the first part of the packaging machine along section line IX - IX in Fig. 4,
[0036] Fig. 10 is a vertical section through the first part of the packaging machine along section line X - X in Fig. 4,
[0037] Fig. 11 is a side view of the first part of the packaging machine according to arrow XI in Fig. 4, Fig. 12 is a vertical section through the first part of the packaging machine along section line XII - XII in Fig. 4,
[0038] Fig. 13 is a vertical section through the first part of the packaging machine along section line XIII - XIII in Fig. 4,
[0039] Fig. 14 is a vertical section through the first part of the packaging machine along section line XIV - XIV in Fig. 3, and
[0040] Fig. 15 is a vertical section through the first part of the packaging machine along section line XV - XV in Fig. 3.
[0041] Figs. 1 and 2 show a schematic overview of a packaging machine 10 for cigarette industry products. For the purposes of this application, cigarette industry products include tobacco products such as cigarettes, cigarillos, and the like, but also novel tobacco products, such as heat-not-burn products or liquid carriers for e-cigarettes. It is understood that the packaging machine 10 need not be limited to this intended use and can also be used to package other products.
[0042] A first section of the packaging machine 10 is shown in Fig. 1. Accordingly, packaging material is drawn off two reels 12 as a continuous material web 11 for inner wrapping of the products, guided through a splicing unit 13, and then guided over several deflection rollers 14 through an embossing device 15, in which the material web is provided with embossing or the like. A web guider 16 is arranged upstream of the embossing device 15 and is used to align or center the material web.
[0043] The products - here, for example, cigarettes - are fed via a magazine 17 and ejected from there by means of a plunger 18 into pockets of a revolver 19.
[0044] To prevent the products from becoming sideways or jammed in the shafts of the magazine 17, a magazine wall 20 is set into vibration by a vibrating unit 21. The vibrations are transferred via the magazine wall 20 to the magazine 17 and thus to the products, for example to a filter side of the cigarettes. The products are pushed out of the pockets of the turret 19 as a group with the aid of drivers 22 of a conveyor 23 and conveyed along a transport track 24. Above the transport track 24 is a cutting unit 25, in which individual blanks for the inner wrapping are severed from the material web 11 coming from the embossing device 15. The blanks are then wrapped around the product group in a known manner to form the inner wrapping. The product group with the inner wrapping forms the pack contents.
[0045] Another component of the packaging is the so-called collar 26. The packaging material required for this is again drawn off as a web of material from a (single) reel 27 and fed via deflection rollers 28 to a collar device 29. A pendulum is used to regulate the web tension. In the collar device 29, which will be described in more detail later, individual blanks are cut from the web of material and fed to a platform 30, from which the blanks, together with the products contained in the inner wrapping, are transferred into a pocket 31 of a folding turret 32.
[0046] The design of the folding turret 32 is known from the prior art. Partially erected blanks for an outer pack are inserted into pockets 31 evenly distributed around the circumference of the folding turret 32 and subsequently filled with the pack contents and collar 26 via the platform 30. The blank is then folded around the pack contents and partially discharged from the folding turret 32. Further processing is shown in Fig. 2.
[0047] A blank magazine 33 is provided for feeding the blanks, featuring a blank feeder 34 and a light barrier 35, which can be used to monitor the fill level of the blank magazine 33. A blank extractor 36 removes the blanks individually from the magazine 33 and feeds them along a transport path above the folding turret 32. The blanks are fed to a bending station 38, where side flaps of the blanks are preformed during a brief downtime to reduce material-related restoring forces. The blanks are then fed to a coding roller 39 by means of a blank pusher 37. Codes can be applied to the blanks using the coding roller 39.Thereafter, embossing rollers 40 are used to emboss beads into the blanks, which can serve, for example, as stops for other blanks, and adhesive is applied to the blanks in a cold glue station 41 before the blanks are stamped into the pockets 31 of the folding turret 32 by means of a folding member 42.
[0048] Before the partially completed packs are discharged from folding turret 32, they are checked for misalignment in a breakage control device 43. The breakage control device 43 functions like a height control device that stops the machine and / or generates an error message if it collides with parts of the pack. The partially completed packs are transported along a conveyor line 44 with laterally protruding folding flaps to form the narrow side walls of the pack. Light barriers 45 arranged in the conveyor path check the presence of the side flaps. The pack then passes through the working area of a cap pusher 46, with which the lid of the pack is slightly lifted or opened in the known manner. The laterally protruding folding flaps are then coated with adhesive in a cold glue station 47.
[0049] The packs are then conveyed upwards in a sealed position in a tower 48 and removed laterally at the top of the tower. The lid is also aligned in the tower in a so-called cap alignment station 49. A light barrier 50 checks whether there are any packs below the tower 48 that can be lifted. This prevents gaps from forming in the pack flow in the tower.
[0050] At the end of the transport line 44, defective packages are ejected in an ejection station 51.
[0051] The collar device 29 and the subsequently arranged elements of the packaging machine 10 are described in detail below:
[0052] A material web 52 for the production of the collars 26 is fed into the collaring apparatus 29 from above (see Fig. 5). A color sensor 54 associated with an infeed channel 53 detects splices or bonding points in the material web 52 (see Fig. 7). Following this, a pair of feed rollers 55 are arranged, between which the material web 52 is clamped and transported.
[0053] One of the two feed rollers 55 is attached to a cross member 56, which can be pivoted out via eccentric mounts, allowing the gap between the feed rollers 55 to be increased to facilitate threading of the material web 52. The cross member 56 is fixed to notches in a stop plate 57 (Fig. 7) via a pressure piece 58 of the cross member 56 (Fig. 4).
[0054] Furthermore, it is provided that the stop plate 57 can be adjusted via elongated holes in order to adapt the clamping pressure of the feed rollers 55 (ie to increase or decrease), see Fig. 7.
[0055] The position of the traverse 56 can be queried via a sensor 59, for example a proximity switch, for example when the feed rollers 55 are engaged (Fig. 4).
[0056] After the collars 26 are separated in the collar device 29, the collars 26 with a splice point are discharged via a nozzle 60 through a channel into a collecting tray 61. The presence of the collecting tray 61 is sensed by a proximity switch 62. After a certain number of discharges, a message is sent indicating that the collecting tray 61 needs to be emptied. For this purpose, the tray can be pulled out of the collar device 29 (Fig. 8).
[0057] Following the feed rollers 55, the material web 52 is fed over a curved guide plate 63 between a knife roller 64 and a cutting bar serving as a counter-cutting device 65. Due to the contour of the knife roller 64 and the short distance to the cutting bar, a collar 26 is severed and / or perforated from the material web 52 (Fig. 5). A brush 66 and two lateral scrapers 67 ensure cleaning of the knife roller 64.
[0058] The knife roller 64 is clamped at both outer ends in a preloaded bearing in cheeks 68, 69 (Figs. 7, 10). Permanent pressure is exerted on the bearing at the front cheek 68 and the rear height-adjustable cheek 69, as well as at the drive belt 70 and a pulley 71. This eliminates the bearing play (Fig. 6).
[0059] The knife roller 64 is connected to a main gear via the drive belt 70, which drives the feed rollers 55. The drive belt 70 is pretensioned by a belt tensioner 72 and secured by a screw 73 (Fig. 7).
[0060] The cutting gap between the knife roller 64 and the counter-cutting element 65 is adjusted by moving an adjusting wedge, the first wedge-shaped adjusting element 74, using an adjusting screw 75 and then fixed or secured by lower fixing screws 76 (Fig. 6, 4). The adjusting wedge or adjusting element 74 is guided in elongated holes 78 by guide pins 77. Two lateral threaded pins 79 arranged on either side of the adjusting screw 75 of the adjusting wedge provide a stop when the wedge is loosened (Fig. 4, 7).
[0061] The adjustment of the parallelism of the knife roller 64 to the counter-cutting element 65 is also carried out by means of a further wedge element as a second wedge-shaped adjusting element 80 in a rear plane of the cutting device (Fig. 9).
[0062] The second adjusting element 88 engages the height-adjustable cheek 69, which is guided by guide pins 81. The height adjustment of the cheek 69 and thus the parallelism adjustment of the knife roller 64 is carried out by means of a screw 82 and is then secured by lower fixing screws 83. The wedge element is also guided by guide pins 81 in elongated holes 85 (Fig. 9).
[0063] The cutting gap must be adjusted before commissioning and after each regrinding of the knife roller 64. The parallel adjustment of the knife roller 64 to the counter-cutting element can be adjusted once.
[0064] The feed rollers 55 downstream of the knife roller 64 clamp the cut collar 26 and transport it slightly further than the next collar 26 coming from the knife roller 64. This creates a gap between these two collars 26. This ensures that any collars 26 that are not cleanly separated are separated from each other. The lower feed roller 55 is also attached to a cross member 112, which is loaded from below by compression springs 86. The contact pressure of the feed rollers 55 is adjusted via the threaded pins or screws acting on the compression springs 86 (Fig. 8).
[0065] The feed rollers 113 transfer the collars 26 to accelerator rollers 87 and then to slalom belts 88. The lower accelerator roller 87 is also attached to a cross member 89, which can be pivoted via eccentric mounts, whereby the gap between the rollers 87 can also be adjusted. The cross member 89 and the contact pressure of the accelerator rollers 87 can be adjusted or fixed via an elongated hole 90 and a fixing screw 91 (Fig. 7). The lower and upper accelerator rollers 87 are driven in the front area via gears 92, with the upper accelerator roller 87 in the rear area being directly connected to the main gear 93 (Figs. 7, 10). The collars 26 are then clamped frictionally between two conveyor belts 94 and accelerated to a transfer guide plate 95. In the inlet area of the slalom belts 88, the presence of the collars 26 is detected on the rear side flap (Fig. 5).
[0066] The feed rollers 55, the accelerator roller 87, and the knife roller 64 are connected to the main gear 93 (Fig. 10). The main gear 93 is connected via an intermediate gear 96 to a drive crank 97 via a locking clutch 98. A drive coupling 106 drives the crank 97 and thus the entire apparatus when the clutch 98 is engaged. The clutch 98 can be unlocked for setting and adjustment work using a pneumatic cylinder 99. When the ball-head rod 100 of the pneumatic cylinder 99 is extended, the ball 101 engages a cup 102 of the release lever 103, thereby disengaging the locking roller 104, which, in the working position (with the cylinder retracted), engages the crank 97 via the compression spring 105 (Figs. 11-13).
[0067] During one of the passages or transports of the collar 26 by means of the slalom belts, the collar 26 is guided under lateral guide rails 107 (Fig. 14, 8), wherein the collar 26 is then gripped and pre-bent by several spatially arranged forming rollers 109 and around a lateral forming strip 108 or switch. The forming rollers 109 gradually bend lateral tabs 110 around the switch, with the inclination of the rollers 109 to one another increasing evenly. The collar edges are thus gradually curved or pre-bent. After passing the last two forming rollers 109, the lateral forming strip 108 or switch becomes increasingly wider (not shown). The diverging edges of the switch return the lateral tabs 110 of the collar 26 to their flat state before the collar 26 is transferred to the transfer guide plate 95.
[0068] The forming rollers 109 and the forming strip 108 can be designed so that a normal pre-bending of the side flaps 110 around one edge for a normal square box or for a double pre-bending around two edges for an octagonal or hexagonal box is possible.
[0069] The concept of the packaging machine 10 provides for the collar device 29 in a compact
[0070] The mold is arranged above the transport track 24 and at an angle to it. After cutting the material web 52 or after optional pre-bending of the collars 26, the collar apparatus 29 places the severed collar blanks directly in front of the platform 30 onto the transfer guide plate 95 arranged above the platform 30, where they are subsequently picked up by carriers of the platform 30 in order to transport them further to a pocket 31 of the folding turret 32 and transfer them.
[0071] During transport of the collar 26 by means of the platform 30, the lateral flaps of the collar 26 are first checked for presence by a forked light barrier 115 and then folded down by 90° (Fig. 3) before the collar 26, together with the package contents, is inserted into a pre-folded blank 114 in a pocket 31. Upon insertion into the pre-folded blank 114, the collar 26 is lowered from above onto the front of the package contents or stamped down by a collar stamp 116 (Fig. 3). Upon further rotation of the turret 32, a left corner flap 117 of the blank 114 is grasped by a fixed folding bar 119. A right corner flap 118 is grasped and folded by means of a corner flap folder 120, which is moved by a coupling gear 121, before it is caught by the fixed folding bar 119 and then guided (Fig. 15).
[0072] ***** List of reference symbols
[0073] 10 Packaging machine 42 Folding device
[0074] 11 Material web (inner wrapping) 43 Breakage control
[0075] 12 Bobine 44 T ransport route
[0076] 13 Splice unit 45 Light barrier
[0077] 14 pulley 46 cap slider
[0078] 15 Embossing machine 47 Cold glue station
[0079] 16 web guide controller 48 tower
[0080] 17 Magazine 49 Cap alignment station
[0081] 18 plunger 50 light barrier
[0082] 19 Revolver 51 ejection station
[0083] 20 Magazine wall 52 Material web (collar)
[0084] 21 Vibration unit 53 Intake channel
[0085] 22 Driver 54 Color sensor
[0086] 23 Conveyor 55 Feed roller
[0087] 24 Transport track 56 T raverse
[0088] 25 Cutting unit 57 Stop plate
[0089] 26 Collar 58 Pressure piece
[0090] 27 Bobbin 59 Sensor
[0091] 28 pulley 60 nozzle
[0092] 29 Collar device 61 Collecting tray
[0093] 30 Stage 62 Proximity Switch
[0094] 31 Pocket 63 Baffle
[0095] 32 folding turret 64 knife roller
[0096] 33 Cutting magazine 65 Counter cutting device
[0097] 34 Cutting feed 66 Brush
[0098] 35 light barrier 67 wiper
[0099] 36 cutting extractor 68 front cheek
[0100] 37 cutting slide 69 rear cheek
[0101] 38 bending station (height adjustable)
[0102] 39 Encoding roller 70 Drive belt
[0103] 40 Embossing roller 71 Disc
[0104] 41 Cold glue station 72 Belt tensioner 73 Screw 107 Guide rail
[0105] 74 first wedge-shaped 08 molding
[0106] Adjustment element 109 form roll
[0107] 75 Adjusting screw 110 Tab
[0108] 76 Fixing screws 111 Pendulum
[0109] 77 Guide bolt 112 T raverse
[0110] 78 Slot 113 Feed roller
[0111] 79 Threaded pin 114 Cutting
[0112] 80 second wedge-shaped 115 fork light barrier
[0113] Adjustment element 116 collar stamp
[0114] 81 guide pin 117 left corner flap
[0115] 82 screw 118 right corner flap
[0116] 83 Fixing screw 119 Folding strip
[0117] 85 slotted hole 120 corner flap folder
[0118] 86 compression spring 121 coupling gear
[0119] 87 Accelerator roller
[0120] 88 Slalom belt
[0121] 89 T raverse
[0122] 90 slot
[0123] 91 Fixing screw
[0124] 92 gear
[0125] 93 Main gearbox
[0126] 94 conveyor belts
[0127] 95 Transfer guide plate
[0128] 96 intermediate gear
[0129] 97 Drive crank
[0130] 98 Snap-in coupling
[0131] 99 pneumatic cylinders
[0132] 100 ball head rod
[0133] 101 ball
[0134] 102 bowl
[0135] 103 Release lever
[0136] 104 locking roller
[0137] 105 compression spring
[0138] 106 drive coupling
Claims
Patent claims 1. Device for separating blanks, in particular collars (26), for packs for products of the cigarette industry from a material web (52) with a rotatable knife roller (64), on the surface of which one or more cutting knives are arranged, and with a preferably rod-shaped counter-cutting element (65), wherein the material web (52) can be guided between the knife roller (64) and the counter-cutting element (65) and wherein blanks can be separated from the material web (52) by the interaction of a cutting knife and the counter-cutting element (65) upon rotation of the knife roller (64), characterized in that the counter-cutting element (65) is mounted in a holder and that the holder is adjustable via a first wedge-shaped adjusting element (74) with respect to the distance from the knife roller (64) is adjustable, and that the knife roller (64) is adjustable via a second wedge-shaped adjusting element (80) with respect to its inclination relative to the counter-cutting element (65) is adjustable.
2. Device according to claim 1, characterized in that the holder of the counter-cutting member (65) is designed as a clamp holder.
3. Device according to claim 1 or 2, characterized in that the first wedge-shaped adjusting element (74) extends over substantially the entire width of the knife roller (64) and / or the counter-cutting member (65).
4. Device according to claim 1 or one of the other preceding claims, characterized in that the second wedge-shaped adjusting element (74) is designed to align the knife roller (64) parallel to the counter-cutting member (65).
5. Device according to claim 1 or one of the other preceding claims, characterized in that the knife roller (64) is held in a pre-tensioned mounting in the region of outer, lateral ends.
6. Device for handling blanks, in particular collars (26), for packs for products of the cigarette industry, in particular is that the blanks are separated from a material web (52) in accordance with one of the preceding claims 1 to 5, characterized in that the blanks, preferably separated from a material web (52) by a knife roller (64), can be gripped by feed rollers (113) and frictionally gripped between slalom belts (88) and can be transported in the direction of a transfer device, wherein it is preferably provided that a platform (30) is arranged upstream of the transfer device, with which the blanks can be fed to a pocket (31) of a folding turret (32).
7. Device according to claim 6, characterized in that in the region of the slalom belts (88) forming rollers (109) are arranged, which are designed to bend at least parts of the blanks, in particular lateral folding flaps, while the blanks can be transported along the slalom belts (88).
8. Device according to claim 6 or 7, characterized in that the blanks are guided over at least one forming strip (108) for bending, which is arranged following the working area of the forming rollers (109) to return the blanks to the original, in particular unfolded, state, in particular by forming the forming strip(s) (108) with increasing width in the direction of the transfer device.
9. Device according to claim 6 or one of the other preceding claims, characterized in that feed rollers (113) for transporting the material web (52) and / or the blanks are pivotally arranged on cross members (112), in particular in the region of the knife roller (64) and / or in the region of an accelerator roller (87).
10. Device according to claim 9 or one of the other preceding claims, characterized in that the clamping pressure of the feed rollers (113), which are preferably arranged subsequent to the knife roller (64), is adjustable, in particular via threaded pins (79).
11. Device according to claim 6 or one of the other preceding claims, characterized in that the drive of the preferential rollers (113), Knife roller (64), accelerator roller and / or slalom belts (88) are driven via a common gear (93).
12. Method for handling blanks, in particular collars (26), for packs for products of the cigarette industry, wherein the blanks are separated from a material web (52), characterized in that the blanks, preferably separated from a material web (52) by a knife roller (64), are gripped by feed rollers and are transported between slalom belts (88) in a frictionally engaged manner in the direction of a transfer device, wherein it is preferably provided that a platform (30) is arranged upstream of the transfer device, with which the blanks are fed to a pocket (31) of a folding turret (32).
13. Method according to claim 12, characterized in that in the region of the slalom belts (88) forming rollers (109) are arranged, which are designed to bend at least parts of the blanks, in particular lateral folding flaps, while the blanks are transported along the slalom belts (88).
14. Method according to claim 12 or 13, characterized in that the blanks are guided over at least one forming strip (108) for bending, which is arranged following the working area of the forming rollers (109) to return the blanks to the original, in particular unfolded, state, in particular by forming the forming strip(s) (108) with increasing width in the direction of the transfer device.
15. Method according to claim 12 or one of the other preceding claims, characterized in that feed rollers (113) for transporting the material web (52) and / or the blanks are pivotally arranged on cross members (112), in particular in the region of the knife roller (64) and / or in the region of an accelerator roller (87).
16. Method according to claim 12 or one of the other preceding claims, characterized in that the drive of the feed rollers (113), knife roller (64), accelerator roller (87) and / or slalom belts (88) is driven via a common gear (93). *****