FI117796B - Method and apparatus for handling a web of material web - Google Patents

Description

117796

METHOD AND APPARATUS FOR HANDLING MATERIAL ROLL

The invention relates to a method and apparatus for transporting a web / roll of material webs, as well as to operations during transportation: wrapping, tag reading, quirking and marking and various measurements. This invention complements the invention described in previous patent application FI 20040237 relating to the transport of a paper roll on a movable ramp.

At paper mills, paper rolls are most commonly packaged by placing end tags on the ends and wrapping kraft or plastic film or both around the diaper. Prior art is described, for example, in the following patents: FI 83858, US 3863425, US 6347498, GB 1429445, FI 111834 and US 2893191, and in FI 20020658.

A complete transport and packaging system typically includes the following work steps: - Roller / roller group transport to packing area - Roller transport between different workstations - Bar code tag number - Roller diameter and width measurement - Ink jet marking: - Roller lifting · · j - Transporting and Installing Inner End Tags • \ · - Feeding the Wrapper ·; ··· - Wrapping the Wrapper ·; 1 - Transporting and Installing the Outer End Pads ···· - End Baking - Printing, Transporting, Gluing and Installing Labels ·· • 2 ·· - Weighing before and / or after packaging • · # - Forwarding of packaging · · · · ... • · 2: 3: In the future, RFID tags are expected to replace those currently in use.

* · «1 · • · • · · - '* · • · 3 2 117796

Due to space and / or capacity, the aforementioned work steps often need to be distributed to multiple workstations. This results in a great deal of hardware need: conveyors, lifting equipment, rotating racks and the like, which are repeatedly found on many workstations.

Industrial robots are commonly used for transfer / installation of end tags and labels.

Inner and outer end tags are both required in about 100 mm diameter steps, a large selection. End tag stacks have to be spread over a wide area.

Because of its limited reach, headband robots therefore often have to be positioned over a linear motion unit. Another known solution is to use large-area dominated portal robots. One option is to bring end tags with conveyors from the stockpile to the wrapping stations.

Known solutions are often difficult to place in confined spaces. Clutter also causes difficulties in arranging replenishment of end tags and reels. The high volume of equipment results in high investment and maintenance costs.

The object of the invention is to provide a compact transfer and salary system in which the same business units are utilized in a variety of tasks. The system according to the invention can even include all the operations necessary between the winder and the warehouse. Most of the process tasks can be performed during the roll transfer. For the reasons mentioned above, a significant reduction in the amount of equipment is achieved. When operations occur, "in a single pass on the transfer device, reduces the number of treatments and the potential for damage to sensitive · · · 1 products.

··· * «• *. The invention is characterized by what is set forth in the characterizing parts of the independent claims.

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The invention will now be described with reference to the accompanying drawings.

• · · Φ • * · • * • · • * ·

Fig. 1 shows an embodiment of the invention, partially in section, viewed in the conveying direction of the roll.

··· * · * "Figure 2 shows a layout solution of a typical embodiment of the invention.

Fig. 3 shows an alternative embodiment of the invention, viewed in the direction of conveyance of the roll, partially cut away.

Fig. 4 shows another alternative embodiment of the invention in the direction of conveyance of the roller, • f «** • ·, partially cut away.

• · · • · 117796 i 3

Embodiments of Figures 1 and 3 will now be described.

Under control of the guides 4 of the conveying device 37, the transfer and operation module 2 is preferably secured to the moving carriage 3 by means of the horizontal elements 25 and / or the rotation unit 5. Later, the transfer and operation module is called the operation module. On one side of the operating module 2 is a bracket 6, the upper part of which has a pivot 9 that is pivotable in a vertical plane. The bracket 6 consists of a frame which is preferably about one meter wider than the widest roller group 1.

At each end of the bracket body are substantially vertical plates. Between these, a pivoting member, the drive of which is not described, is mounted downwards. Alongside the rotating member, there may be a scroll ramp 8 which also attaches at its ends to a bracket 6. Most preferably, the rotating member is a roll 32. When handling a roll 1 of soft and / or delicate material, the rotating member preferably consists of a belt / strap or the like. Correspondingly, the pusher 9 may be provided with a contact member roller 33 or belt / belt row 10 or the like. The pivoting member and the pushing contact member act as a supporting member for the material web / roll group 1, on which the material web / roll group rests and rotates when required by the operation. For example, in the case of roll pickup and / or drop, the pusher 9 is able to raise the contact member 10,33 above the roll 1, whereby the roll can roll freely under the contact member. Later, the roll of material web / roll group 1 and the package are also abbreviated as roll.

In the carriage 3 of the conveyor 37 or in the body of the rotation unit 5 are guides 12 which. . in the control, the lcelkka / carriages 13 move horizontally, a carriage 14 being mounted vertically on the carriage, the lower end of which preferably comprises two pivoting elements 15, 16 • · ^. by means of a gripper 11 having gripping members, preferably suction cups 17, for gripping the end tag 19 · · *. The pusher 9 is open in the movement area of the gripper 11. The gripper 11 may have • ·, ·, gripping members on one or two sides. There are one or most preferably two or more preferably two end manipulation equipment 36, ···, and are carried with the transport device 37, ·

There may be more than one operation module 2 moving on the same conductors 4.

· «! ·. ···. The transport device 37 and / or its operation module 2 may be provided with a plurality of operating units · * ·, 1 ·, such as: · · · m m · - wrapper folding units 21.

• · '· * t - Barcode scanner 34, which may alternatively be located on the end tag gripper.

['t - Inkjet Injector 22.

117796 - Measuring Device (s) for Physical Measurements of a Roll 23.

Quality control related measuring equipment such as hardness measuring device.

A radio frequency printer / detector 35 which utilizes RFID technology to transfer information to a reel 1, preferably inside a sleeve, into an identifier disposed and / or reads information stored in the identifier.

Most of the operating units are associated with movement means which allow the necessary movement of the operating units mainly in the direction of the axis of rotation of the roll 1 and in the vertical plane. The organs are known in the art and have not been described. For the sake of readability, the investments of the Operations Units are also partly off-line.

Figure 2 illustrates a layout arrangement typical of the invention. The Operator Module (s) carrying the roller (s) moves in the direction of the guides (4), and peripheral devices are provided along the way to perform operations and supplies stations. The operation of such a system may comprise all or part of the following operations.

For example, the roll / roll group 1 is retrieved from the conveyor 30, or alternatively, the roll enters the pickup position by scrolling. The pusher 9 grabs the roll / roll set 1 at the pick-up position and pushes it, down the ramp 8 or directly onto the rotating member 7,32 so that the roll / roll set 1 remains on the support of the rotating member and the pusher contact member. The operation module 2 begins to move in the direction of the rails 4 and, if necessary, also rotates the orientation of the roll so that its axis of rotation is parallel to the rails 4.

Bar code reader 34 reads the tag.

The measuring device 23 measures the physical quantities of the roll 1.

*: **: - The measuring device 24 measures the quality characteristics of the roller 1, such as hardness. '• *:. * ·· - Scale 25 weighs the weight of roll 1 and / or packaging.

- Ink jet printer 22 makes an entry.

- The RFID unit writes and / or reads the tag.

• · · · ... · - Operation module 2 stops at an end tag station 20 having a suitably sized end tag, and the gripper (s) retrieves / retrieves the end tags 19. Most preferably «· ♦« ...! as the operation module 2 moves to the next operating position, the end patch manipulator / - · · • · '··· * manipulators 36 move / move the end tags from position 19 to position pos2 and press the tags * · · toward the ends of roll 1.

• · · - Operation module 2 moves to the wrapper feed unit. The rotating member 7.32 is started: · *; rotates so that roller 1 also starts to rotate. From the wrapping feed unit, a wrap is fed to the nip between the rotating member and the roll 1. The wrapper is wrapped around roll 1.

* 5 117796 There may be several wrapper units and they are implemented by techniques known per se. For example, the following wrapping methods may be used: A. The wrapper feed unit 27 pivots horizontally and enables spiral wrapping. The roll 1 is moved by the operation module 2 during the wrapping.

B. The wrapper feed unit is in a position where the rotation axes of the wrapper roll and the material web roll 1 are parallel. Thus, in central wrapping, the operation module 2 moves the material web roll 1 symmetrically to the wrapper feed unit. The wrapping takes place as the roll of material web 1 rotates.

C. Overwrapping occurs with the wrapper feed unit in the same position as central wrapping B but in two or more steps. Between the wrapping steps, the operation module 2 moves the material web roll 1 in the direction of its axis of rotation by a distance = width of the wrapper roll.

D. The wrapper feeding unit 26 has a plastic wrapper for wrapping a plastic wrapper.

E. If the wrapper feeder unit 27 has a kraft wrapper and the unit 26 has a plastic wrapper, the web roll can be wrapped in a combination wrapper.

Before the wrapping begins, the suction cups 17 release their grip, and the sole 18 in the middle of the gripper presses the end tag against the end of the roll of material. This also prevents the roll 1 from wandering during wrapping.

The operation unit 2 moves the roller 1 to a labeling station where the label dispenser 28 feeds: the label (s) to the nip between the rotation member and the roller, whereby the label "**: rolls to the surface of the jacket as the roller rotates.

* ·!, '· - Most preferably simultaneously with other operations, the folding units 21 fold the portions over the ends of the wrapper "*" · roll 1.

..II * - Operation unit 2 moves the wrapped roll to the baking press 29 where the · · · ends of the package are baked. Most preferably, the pressing and baking takes place on a sector-shaped baking sheet in several steps, rotating the roller between them. This can be done while the package ··· ·· "is still in the grip of the operation unit 2. The operation unit 2 may also leave the package in a baking press, whereby pressing and baking can be carried out normally in one step.

* * · - Most preferably in the last position before the operation unit 2 leaves the package, its horizontal weight is weighed by 25; Likewise, before leaving the package, it can be oriented: * with respect to the axis of rotation, so that the label is correctly positioned for further processing.

* · 6 117796

- Operation unit 2 leaves the package in a dispensing station, for example conveyor 31. I

Operation unit 2 can remove the pack or roll from its grip at any position within its range of motion. The roller can be allowed to roll in any direction horizontally wherever there is unobstructed access. Thus, for example, the reel rollers can be left in a suitable position in a suitable position for further transportation of the truck.

At least some of the packaging-related and / or other operations are carried out in transit, at least in part at the same time. The system that performs transportation, packaging, and other operations is most likely to operate automatically.

The distance between the pick-up and drop-off points is usually at least 10 meters, but can be more than 20 meters. Most preferably, the necessary perimeter equipment and accessory stations can be located for a distance of 15-20 m, and the cycle time will not be too long.

Since the individual operations are performed using techniques known per se, no detailed description of the functions, for example gluing at all, has been made. Operations may also be performed in a different order from that described above. Various other embodiments are possible. For example, in plastic wrapping, it may be advantageous to position the wrapper feeding unit (26) to accompany the transport device (37). In this case, the wrapper feeder must be equipped with its own linear motion equipment.

In the embodiment of Fig. 4, the guides 4 are located on the floor. This alternative is not as flexible to apply as the previously described embodiments in which the guides are located above the operating units and peripheral devices. On the other hand, the advantage of the sub-conductor *: **: embodiment is its very robust construction.

The invention still has an embodiment (not illustrated) that does not have conventional guides guiding via mechanical contact at all. The wagon moving the operation unit, to keep it Φ .. *** on the carriageway, is electronically controlled by measuring the location and making the necessary • · · · ... · coaxial movements. Such a control technique is known from green wagons. This, a more limited embodiment of the functions described above, can be accomplished by attaching ··· ...

rotating means for the lifting fork of the trolley. This solution is very flexible with different layouts • * · • · * ... *. The perimeter equipment can be positioned quite freely along the path of the trolley 1 /. : along the way.

• * · ί.,. Ϊ Within the scope of the invention, solutions other than the above embodiments may be contemplated.

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Claims (12)

117796 1. A method for conveying a web of rolls / rolls (1) from a pickup station to a pickup station with a distance of at least ten meters between stations and wrapping a roll of rolls / rolls of rolls (1) on at least some of the following operations: and marking physical quantity measurement - weighing characterized in that during transport, wrapping and other operations of the material web roll / roll group (1) the material web roll / roll group (1) rests on the supporting members of the transport device (37). Method according to claim 1, characterized in that at least some of the operations related to packaging and / or other operations are carried out simultaneously with the transport, at least in part b. Method according to one of the preceding claims, characterized in that the radio frequency printer / sensor (35) is carried with the transport device (37). Method according to one of the preceding claims, characterized in that *: **: the system t ·: carrying the web and roll group (1) of material web and other operations automatically operates. I (• · ..li ' A method according to any one of the preceding claims, characterized in that there are one or more preferably two * end-tag handling equipment, end-patch manipulators (36) and are carried with the transport device (37). The method according to any one of the preceding claims, characterized in that the wrapper feeding unit (26) passes with the transport device (37). · · • · • · · .... | A method according to any one of the preceding claims, characterized in that the contact member (10,33) of the pusher (9) rises above the material web roll / roll group (1). • · 8 117796 8. Apparatus for conveying a web of rolls / rolls (1) from a pick-up station to a pick-up station of at least 10 meters between stations and a roll of rolls / rolls of rolls (1) between wrapping and at least part of the following operations: and marking and / or reading physical quantity measurement - characterized in that the conveying device (37) has means for resting on the material web / roll group (1) during transport, wrapping and other operations. Device operating in an automatic system according to Claim 8, characterized in that the radio frequency analyzer / sensor (35) is arranged in connection with the transport device (37). A device according to the preceding claim of Jorik, characterized in that at least one end-tag manipulation apparatus, an end-tag manipulator (36), is disposed with the transport device (37). Device according to the previous claim in Jorik, characterized in that the wrapper feeding unit (26) is located in connection with the transport device (37). · · · · • I A device according to any one of the preceding claims, characterized in that the pusher * *: ** · (9) has means for raising the contact element (10,33) above the material web / roll group (1) ... Γ. • · · · • • 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 • · · • · · 117796 Fatentkrav