FI92032C - Method and apparatus for wrapping goods - Google Patents

Description

92032

METHOD AND APPARATUS FOR LOADING GOODS

The invention relates to a method for wrapping goods in a crushing machine, in which case the goods are transferred to the crimping station of the crushing machine, the goods are crimped horizontally inside the crest and the crimp is sealed and cut. The invention further relates to an apparatus for horizontally curling goods within a machine, the apparatus comprising a baling machine and a conveying device. device for sealing and cutting kSSree.

EnnestH & n is known for a wide variety of methods and apparatus for the production of goods in a kS & rin t-machine, disclosed in FI-80418, FI-81539, FI-83193, DE-2,328,711 and US-4,299,076.

The referenced Finnish patent publications 20 disclose a wrapping machine in which a product or article brought to a wrapping station is rotated around the article by wrapping a curl around the article, after which the wrapper is cut and sealed.

Methods and apparatus for wrapping are still known, in which case the spool is held in place and the goods are rotated by winding the spool on the pSM of the goods, and finally the spool is cut and sealed.

The curling methods and apparatus described above are suitable for packaging products, especially when it is intended to wrap several layers on the pSS of the product. However, known wrapping methods and equipment are not suitable for product wrapping when only one layer of wrapping is intended around the product. In such a case, the arcing often has to be performed, which is very laborious and expensive.

• ♦ 92032 2

Furthermore, the known bending methods and apparatus are generally suitable for use with various arcuate materials, e.g. paper !, plastic, corrugated cardboard, etc.

Further, prior art reference is made to Patent-5 publications FI-50947, FI-76979, DE-2,945,551, DE-3/039/293 / DE-3,313,511, CH-616,119, US-3,564,810, US-3/996/728 and U.S. Pat. 4,831,812. From the referenced publications, a method and apparatus for scraping goods are known in an arcing machine, in which case the wrapper is unloaded from two 10 vertical storage rolls around the goods and the arc is finally sealed and cut. However, in the cited publications, two storage rolls have been used, from which the Arc to be dismantled is sealed together before bending.

The curvature methods and apparatus 15 disclosed in the publications referred to above all have the disadvantage that the kMMrint of the goods can only be started by transferring the goods to be curved to the curvature station.

In other words, the bending is performed silently on the surface of the goods to be arced. The bending can be accelerated by accelerating only 20 bending operations ,.

The object of the present invention is to obviate the above-mentioned drawback. In particular, it is an object of the invention to provide a more efficient bending machine with previous bending methods and apparatus, in which 25 bends, i. the unloading of the arc can be started silently after the previous arcing step has been started without waiting for the article to be arced to be brought to the arcing station.

With respect to the features of the invention, reference is made to the claims.

The invention is based on the basic idea that the arc is drawn from at least one, mainly vertical storage roll, mainly into the shape of an article by means of gripping and transfer devices, moving the storage roll and the gripping member relative to each other, i. e.g. in a U-shape, the arc is kept in that shape and the goods are moved inside the arc of this yoke. Finally, the arc is tightened - · 3 92032 around the goods and seamed and cut.

The term "shape of goods" in this context means that the curve is drawn in three directions mainly into the shape of the goods, i. the wrapper is drawn in a suitable * 5 ti U-shape, after which the goods are moved inside the wrapper drawn in a U-shape. The wrapper is then pulled over the last side of the goods, tightened and seamed and cut.

Thanks to the invention, wrapping, i.e. the drawing of the wrapper 10 into the shape of the goods can be started inevitably after the previous wrapping step without any waiting times. In other words, when the wrapper of the previous wrapping step has been cut and seamed, the drawing of the wrapper is started from one or alternatively from two storage rolls in the shape of the article 15, i. e.g. .

The scaling method according to the invention is substantially faster and more efficient than before. The method according to the invention does not require the waiting times required by the previous methods 25, the evaluation continues. kaa, the carcass is drawn into the shape of the goods vfilittmastas at the end of the previous step.

In a preferred embodiment, the wrapper is pulled from a single storage roll into the shape of an article, the wrapper is moved within the wrapper, the wrapper is pulled over the last side of the article, and is sealed and cut.

In another preferred embodiment, the wrapper is first pulled from the stock roll partially onto the take-up roll and only then from the stock roll and the take-up roll 35 into the shape of the article, finally seaming and cutting the wrapper. The amount of wrapper pulled from the stock roll to the take-up roll corresponds exactly to the amount of «« 92032 4 wrapper used, i.e. all on the take-up reel Vedetta-vS Arc is preferably used in bending.

In a third preferred embodiment, two storage rollers are used to seal the pSat of the kSS-5 thighs together. After this, the arc is drawn into the shape of the article, the article is drawn inside the arc, the arc is drawn over the last slice and the seam is cut and cut.

When drawing an arc from one or more rolls of 10 to the shape of the goods, i.e. In the U-shape, the arc is gripped, in one application, a separate gripping device and the arc is pulled to move the gripping device and rolls relative to each other as the arc is released from the roll. In the method, myfis can be used several from 15 gripping plates, by means of which the arc is gripped, e.g. from the corner point of the arc drawn into the shape of the article. When the arc is drawn into the shape of the article, the gripping plate (from the gripping plate) and the curling roll (with the curling roller) are slid relative to each other. The TamM can be implemented in such a way that the 20 rollers (rolls) are moved relative to the gripping device (s) which are mainly in place. In another embodiment, the gripping device (s) are moved relative to the stationary arc roller (s). The transfer direction corresponds to the dimensions of the 25 goods to be curved, i. initially the transfer takes place in the direction of transport of the conveying device in the width direction of the two kSS chest positions, which is necessary e.g. due to the placement of two rollers, then in the longitudinal direction of the goods and finally in the width direction of the possibly stationary position. The arc can be drawn by means of a single gripping member first in the longitudinal direction of the station, then in the width direction of the station, then in the longitudinal direction of the jail station and finally in the direction of the width of the station from the initial strip. Correspondingly, the frying of an arc can be gripped by a gripping device, substantially stationary, by. after The arc is pulled around the bending station, moving · »5 92032 rollers as shown above.

The gripping device (s) can comprise, for example, two jaws with a similar pressing member, the choice of which is pressed during gripping and / or pulling. The gripping device can also be, for example, pneumatic, in which case the water is connected to the gripping device, for example by means of a vacuum. The gripping device can also kS then one or more support strips which can be filled inside the kSSre, i. to the side of the packing station 10, on which support members the edges of the wrapper rest; the support members may be hinged to the side of the packing station and poles there, or they may be substantially fixed, whereby the k & Sre is folded under them during the packing step, e.g. in connection with top-sealing by means of special sealing means or the like known in the art.

The invention will now be described in detail by way of example with reference to the accompanying drawings, in which Figure 1 shows a schematic plan view of an embodiment of a method according to the invention using the apparatus according to the invention, Figure 2 shows Fig. 3 is a schematic view of a method according to a third embodiment of the invention using a third apparatus according to the invention.

Figure 1 shows an apparatus 30 according to the invention for horizontal inspection of goods 1 inside kSMreen 2. The apparatus comprises a special wrapping machine 3 and a conveying device 4 for transferring the goods to the kH & rint & machine's carriage station 5. The KSMrint & machine comprises at least one substantially vertical storage roller 6, devices for curving the cargo 35 kHSre's interior and sealing and catenary and disconnection. In the embodiment shown, the conveying device 4 is formed from a conventional belt conveyor with a pS & ton conveyor belt running around two chisel rollers 4a, the other being provided with a power device; any conveyor known as a conveyor can be used in the apparatus.

The apparatus according to the invention comprises a special gripping device 9 for gripping the gripping device and the storage roll 10 to draw the gripper and the storage roll to draw the roll from the roll 10 in the form of an article 1 for transporting the strip to the wrapping station 5 in the form of a container. In the embodiment shown, the gripping device 9 comprises two jaws which can be pressed against the opposite side. by means of a 15 kSyttfimf filter cylinder, solenoid or the like kSyttd device, as is known in the art. In the embodiment shown, the transfer plate 10 consists of a transfer rail transverse to the transport direction of the conveyor device 4, on which the storage roller 6 and the gripper-20 gate 9 are mounted. The transfer device further includes a power device, such as a power cylinder driven by a pressurized fluid, a threaded rod, a rack or the like, for transferring the gripping device and the storage roller relative to each other. The transfer device further comprises 25 longitudinal conveyor rails 101 of the conveyor 4, on which the storage roller and the gripping device are moved, to the positions 91 and 61 marked with broken lines in the longitudinal direction of the conveyor 4. In addition, the apparatus comprises a special holding device 11, e.g. vertical holding members 21 rotatable about a horizontal axis 20 about its axis 20. The apparatus further comprises a sawing device 7 and a cutting device 8.

When operating the apparatus, the gripping device 9 is moved along the rails 10 towards the storage roll 6 to the position marked by dashed lines 92 so that the gripping device grips the kSSre 2 pSSh & n. After TSm & n, the gripper. the SpI is moved in solid lines to its starting position marked with the number 9 • • 7 92032 and the gripping device and the storage roller are moved along the conveyor rails 101 to the positions 91 and 6l marked with broken lines. At this stage, the blockers 21 are moved to their original position by means of the shaft 20 on the side 5 of the chest station 5, and the gripping device 9 and the storage roller 6 are moved back to their original position, denoted by reference numerals 9 and 6 on the support members 21. in the form of goods. After this, the goods 1 are transferred to a wrapping station, the wrapping is tightened and sealed, e.g. .

15 Pulled & ess & Arc Over the bending station, the support members 21 may be provided e.g. with rollers which allow the kaffir to run freely from the storage roll 6. In connection with bending, when the goods 1 are brought to the bending station 5, the blockers 21 are turned away from the top 20 by the shaft 20. freely against tava-raa 1.

Instead of the embodiment shown in Figure 1, the storage roll 1 may have myds in place, i.e. essentially solid but rotating. In this case, the gripping device 25 can be arranged to grip the kMMre according to the above, after which the gripping device, e.g. on the rails 101, moves in the direction of the conveyor 4 towards the holding device 11. 5 on the side after which the gripping device 9 moves on the rail 10 towards the position marked with dotted lines 91. After this, the support member 212 moves to the side of the station and the gripping device 1 * is pulled towards the head of the unit to its starting position 9 marked in solid lines. Finally, the sealing and cutting of the unit takes place as described above.

Figure 2 shows an embodiment comprising 92032 8 a special receiving roller 12 with gripping devices 9. The receiving roller 12 and the storage roller 6 are arranged to move towards each other, e.g. the receiving roller towards and back of the storage roller and / or the storage roller 5 towards and back of the receiving roller. The transfer is performed using conventional transfer devices, e.g. as shown in Figure 1. Thereafter, the wrapper is wound on the take-up roll 12 to the extent necessary to wrap the next item, and the stock roll 10 and the take-up roll are moved & Sn in the figure to the right towards the holding device 11 over the wrapper & station 5.

After TSmSn, the support members 21 of the holding device are kSSn to the side of the arcing station 5 of the arc so that the support members hold the web in place, and the 6 secM receiving roller 12 is moved back to its initial position in the figure, i.e. in the position shown in solid lines in the figure, while unloading the arc from the take-up roll and the stock roll to be packed, i.e. U-shaped as shown. Finally, the goods are transferred 20 to the bending station 5, the spool is seamed and cut, e.g. as shown in Fig. 1, before tightening on the play of the goods the support members 21 are removed from above by turning the holding device shaft 20.

Figure 2 does not show the transfer member M and -25 devices for transferring the storage roll and / or the take-up roll. Any type of transfer device and member known per se can be used for the transfer, such as transfer rails, e.g. two pairs of opposite rails on which the rollers are supported at their upper and lower ends. Further 30, Figure 2 does not show the sealing and cutting devices; Any equipment known per se can be used for sealing and cutting.

Figure 3 shows an embodiment comprising two storage rollers 61 and 63 placed opposite each other 35 on each side of the goods 1 transport device 4. The storage rollers are movable with respect to the holding device 11, i.e. in the conveying direction of the conveyor; the conveyor is 9 92032 shown in broken lines and only partially. In this application, the holding device consists of a vacuum chamber equipped with special vacuum equipment.

When the device is operating, the p & St 14 of the rollers 61 and 62 5 of the storage rollers 2 are seamed together at the end of the previous kSS chest. The storage rollers are moved to the position shown in broken lines against the vacuum chamber over the carinth position 5 in the conveying direction of the conveyor 4. The side of the vacuum chamber on the bending side is open, 10 and the open side is moved. The vacuum then pulls the kSMre against the vacuum chamber, after which the storage rollers 61 and 62 are moved back to their starting position shown in solid lines. During or immediately after the transfer, the goods may be transferred to the front position 5; at the end of the transfer, the heated sealing sms of the sealing device 7 are pressed against the side kSSrettS, whereby the arc is tightened and sealed, finally the kSare is cut by means of a cutting knife 8, whereby the ends of the arches on the storage roll are sealed together.

Figure 3 does not show the transfer devices of the mydskMS storage rollers 61, 62, these are conventional, as shown above.

The embodiments are intended to illustrate the invention only, and any application of a storage roll, take-up roll, gripping device, holding device, sealing device, cutting device, conveyor, etc. may be used in the apparatus according to the invention, as is known in the art or from other publications cited in the preamble. as is known to the person skilled in the art or is self-evident. For example, the gripping device 9 of TSlld may comprise gripping claws pressed over the membrane, gripping claws penetrating the membrane, pneumatic gripping members 35 based on vacuum or overpressure, or in general any gripping members. Furthermore, the holding device 11 can be formed by any member which is held in place by the KSSretts, e.g. j & rjes-5 means for supporting this arc, such as mechanical gripping members, pneumatic gripping members, etc. The pneumatic gripping device vol consists of any single, double or multi-compartment vacuum chamber tal 10 known in the art. Furthermore, any of the above and / or lower eslm can be used for the transfer of the storage and / or receiving roller to the gripping means 9. conveyors, sleds or the like based on rails or other conveying means; The transfer member can also be used with 15MM. vertical axis eslm. A rotating member in the area of the station & to which the roller, roller, gripping device, etc. is connected. Myds kllnni holding device 11 vol must be displaceable in the direction of the conveyor 4 over the kSfinting station, whereby the storage roller (s) 20 and any receiving roller or gripping device vol must be non-displaceable in the direction of the conveyor 4.

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Claims (13)

92032 11 A method for wrapping an article in a wrapping machine, wherein the article is transferred to a wrapping machine on a wrapping machine, the article is wrapped horizontally from the wrapper to the wrapper and the wrapper is sealed at least in one piece, and the wrapper is sealed and cut, known to be wrapped. by moving the 10 storage rollers and the gripping member relative to each other in the width direction and the longitudinal direction of the article, the article is moved inside the wrapper, the wrapper is tightened around the article and the joint is cut and cut. A method according to claim 1, characterized in that the wrapper is transferred from the stock roll to the take-up roll and wound on it by unloading the wrapper from the stock roll, the wrapper is pulled into the shape of the article by unloading the wrapper from the stock roll and / or the take-up roll. Method according to Claim 1 or 2, characterized in that the wrapper is drawn into the shape of the article by means of mechanical or pneumatic gripping and transfer devices. Method according to one of Claims 1 to 3, characterized in that the rolls are moved relative to one another and / or relative to the packing station. Method according to one of Claims 1 to 4, characterized in that the gripping and transfer devices are moved relative to the storage rolls and / or the packing station. "6. An apparatus for wrapping goods (1) horizontally inside a wrapper (2), the apparatus comprising a wrapping machine (3) having a wrapping station (5) and 35 conveying means (4) for conveying the goods to at least one wrapping machine of the wrapping machine, mainly capable of wrapping the storage roll (6), • l • 92032 12 devices for wrapping the goods inside the arch and a sealing and cutting device (7, 8) for sealing and cutting the arc, characterized in that the apparatus comprises a gripping device (9) in the arch (2) ) a gripping device and a transfer device (10) for gripping the gripping tray and the storage roll (6) relative to each other to draw an arc from the roll into the shape of the goods and to keep the arc in the form of the goods when transporting the goods to the front position (5). Apparatus according to Claim 6, characterized in that the gripping device (9) and / or the storage roller (6) are displaceable in the lateral direction of the bending station (5). Apparatus according to Claim 6 or 7, characterized in that the gripping device (9) and / or the storage roller (6) are displaceable in the longitudinal direction of the arcing station (1). Apparatus according to one of Claims 6 to 8, characterized in that the gripping device 20 (9) is arranged to grip the head of the arc (2) on the storage roller (6) and pull the kMare over the arcing station (5) in the lateral direction. 11), which is arranged to grip the kSare pulled over the arcing station, and that 25 on the one hand the gripping device (9) and the storage roller (6) together. on the other hand, the holding devices are movable relative to each other over the arcing station in its longitudinal direction to pull the arc from the storage roll to the shape of the goods by means of the gripping tongue and the bending device. Apparatus according to one of Claims 6 to 9, characterized in that the apparatus comprises a receiving roller (12) and a transfer device (10) for moving the receiving roller and the storage roller (6) relative to one another in the sliding direction of the arcing station (5). is provided with a gripping device (9) and a drive device (14), such as a motor, for gripping and unloading the arc • · 92032 and a transfer device (101) for transferring, on the one hand, the gripping and holding device and, on the other hand, the storage roll and the receiving roll relative to each other over the wrapping station in its longitudinal direction. Apparatus according to one of Claims 6 to 10, characterized in that the gripping device (9) comprises two jaws (15) and a power device (16), such as a solenoid! to press the jaws against the opposite curve (2) between the jaws. Apparatus according to one of Claims 6 to 11, characterized in that the holding device (11) comprises at least one support element (21) projecting above / below the horizontal, vertical frame. Apparatus according to one of Claims 6 to 12, characterized in that the holding device (11) comprises at least one substantially vertical vacuum chamber (19) with vacuum devices. «1 • i *« «14 92032