RU2165873C1 - Device for making packages with pockets - Google Patents

Abstract

FIELD: packing. SUBSTANCE: invention relates to table packing machines using plastic tape in which pockets for tablets are formed which are then covered with aluminium foil tape (so called blister packages). Device has reel with plastic tape, pocket making drum, reel with foil tape, tape glueing unit, marking unit and package cutout unit. Marking unit is combined with cutout unit, with mounting of marking characters on punch. EFFECT: simplified design of device. 3 cl, 3 dwg

Description

 The alleged invention relates to packaging technology, specifically to machines for the production of packaging from tapes, which squeeze pockets for tablets (so-called blister packs - see, for example, the journal "Tara and Packaging", N 2, 1992, p.20).

 A device for forming a tape packaging material containing a feeder with drum drums for belts, an endless conveyor with cells, a heater, rollers, pushing tapes into cells for forming packaging half-molds, a mechanism for connecting half-molds to a mold, a pipeline for filling molds with useful filler, a cutting device and receiver for completed forms (see USSR patent N 573122, class B 65 B 47/04, priority 1974). This device, designed for the production of molds such as plastic bottles, is not suitable for the manufacture of blister packs.

 There is also a known method for the production of blister packs, including symmetrical formation of pockets in the base and covering tape, joining the tapes in the plane of symmetry with the formation of lines separating the two-sided packaging forms (see US patent N 6,055,794, IPC B 65 B 047/00, 1999 priority. ) In the specified method, the technology of marking an individual package before its cutting from an endless ribbon with forms was not disclosed.

 The closest in technical essence to the alleged invention is an apparatus for the production of blister packs and packaging them in cardboard boxes (see US patent N 5,081,816, IPC B 65 B 57/10, publ. 1992 - prototype). This unit consists of three devices connected in a single technological line. The first device comprises a reel with a base tape, a tape heater, a pocket forming unit in the base tape, a tablet loading hopper, a tablet table, a tablet filling pocket, a reel with a covering tape, a device for attaching the covering tape to the base, and a blister pack marking unit.

 The second device comprises a conveyor with devices for cutting and sorting blister packs, a unit for folding packages into stacks, and a stack dispensing device. The third device comprises a node for manufacturing a cardboard box, a node for receiving a stack of blister packs and its placement inside the box, a node for dispensing a box with packages.

 The disadvantages of the prototype include its bulkiness and a certain “rigidity” of the layout of the marking and cutting units, which complicates the quick reinstallation of the device for the production of blister packs for tablets of a different size.

 The technical task is to simplify the design by combining the operations of marking and cutting packaging in one node.

 The technical result is achieved by the fact that in the device for forming packages with pockets containing a drive drum, a feeder with an endless base tape, a unit for forming pockets in the base tape, a hopper for packable items, mainly tablets, communicated with a table for placing tablets in pockets, a reel with endless coating tape, a unit for gluing the covering tape on the base tape, a marking device including replaceable marking letters, a knot of cutting individual packaging from the tape containing a table, at least two punching dies having chopping protrusions configured to enter grooves on the table, marking letters are mounted on the stamps along the chopping protrusions on their inner side, with the dies being staggered relative to the direction of movement of the tape.

 The device is also characterized in that the feeder with the base tape and the reel with the coating tape are installed on opposite sides of the table for tablets, while the axis of the feeder and the reel are located symmetrically with respect to the horizontal plane passing through the axis of the drive drum. The device also differs in that the hopper is connected to the table with the help of a removable multi-tray tray, in which the number of streams is equal to the number of pockets in the base tape.

 The technical result achieved is that the marking device is structurally combined with the cutting device in a single functional unit. This means that the production line has become one unit shorter (simplification of design). In addition, the placement of the dies in a checkerboard pattern ensures their quick replacement when switching to other standard sizes of packages.

 The design of a specific device (blister machine) is illustrated by drawings, which show the following types: FIG. 1 is a general view of the layout of the main components of the machine, FIG. 2 is a view of a unit for marking and cutting down a package; FIG. 3 is a view A of FIG. 2.

 The blister machine contains a drive drum 1, a reel 2 with a base tape 3, guide rollers 4, a pocket forming unit in the base tape, including a heater 5 and a forming drum 6, a bypass roller 7, a hopper 8 for tablets, a tray 9, a table 10.

 To ensure a smoother run, the reel 11 for the covering tape 12 is installed symmetrically with respect to the unit 13 for gluing the tape 12 onto the base tape 3. A tension roller 14 is fixed to the spring-loaded lever, after which a bypass roller 15 is installed.

 The marking and cutting unit includes a table 16 with a portal 17 on which the yoke 18 is movably fixed with dies 19, 20 installed in a checkerboard pattern so that free zones "B" and "C" remain on the working plane of the beam 18. The stamps have sharp protrusions 21 located along the perimeter with the possibility of entering into the rectangular grooves "g" made in the table 16. On the stamps along the protrusions 21 are removable letters 22, designed for marking individual packaging.

 The machine is also equipped with a drum 23 for winding the waste belt and a handwheel 24 of the manual drive. 25 designates the finished form in the form of an endless blister tape with pockets 26 in which the tablets are packed.

 To prepare the blister machine for work, a reel 2 with a base tape 3 and a reel 11 with a covering tape 12 is installed. The tape 3 is passed through the rollers 4 into the heater 5, inserted into the drum 6, placed on the table 10, pulled into the drum 1 together with the tape 12. Rotating the drum 1 using the flywheel 24, the ends of the tapes 3, 12 are folded together, around the rollers 14, 15, they are passed on the table 16 under the dies 19, 20 and put into the drum 23. The hopper 8 is filled with tablets.

 To turn on the machine, press the "START" button on the control panel (not shown conditionally). The drums 1, 23 come into rotation, the tapes 3, 12 begin to wind up from the bobbins 3, 11. The tape 3, heated in the heater 5, enters the drum 6, which in a known manner (mechanical or pneumatic) forms pockets for tablets in the tape. Tablets from the hopper fall onto a vibrating table (not shown conditionally), which is equipped with a spiral descent leading to the tray. The tablets slide down the descent to the tray 9, which has guide streams, the number of which is equal to the number of tracks of pockets formed by the drum 6 in the tape 3. The tablets piece by piece slide on the tray to the table 10 and fall into the pockets 26. Moving along the table 10, the tape 3 gets into the area of the node 13. Here the tape 12 is applied to the tape 3 with tablets in pockets and the tapes 3 and 12 are glued to the tape 25.

 Thus obtained endless tape packaging 25 enters the table 16 for cutting individual packages using dies 19, 20. When the yoke 18 moves down, the sharp protrusions 21 of the dies pierce the tape 25 and go into the grooves “g” in the table 16. Thus, from the endless tape 25 in one stroke the traverse can be cut down immediately two packages, which with further movement of the tape 25 fall into the windows in the tape and fall into the receiver (not shown conditionally). The remnants of tape 25 are wound onto drum 23.

 Stamps 19, 20 can be installed so that their edges 21b and 21c will extend beyond the center line of the beam in zones B and C, respectively (not conditionally shown in the drawing, as this may constitute a know-how subject). The problem is that, according to the requirement of the standard, the serial number must be stamped on one side of the package, and the date of manufacture on the other. Therefore, each stamp must be equipped with two sets of letters. For practical reasons, it is better to set the dies so that the dies 20 will cut off the packing side of the adjacent strip, which is stamped 19. In this case, the embossed markings are of good quality and there are no wide margins on the packaging. In addition, often there is a need to pack tablets of large sizes, which require a wide strip of 3 and a wider stamp. In this case, the stamp 19 can be quickly replaced with a wider one without removing the stamp 20. For this, the removable tray 9 is replaced with another, with wide streams for large tablets. In this case, the protruding part of the wide stamp (installed instead of the stamp 19) is located in zone "B", without interfering with the stamp 20. Similarly, if it is more convenient for work, you can replace the stamp 20 with a wider one. Then the protruding part of the wide stamp will be located in the zone "B", and the stamp 19 can not be touched.

 According to this scheme, an experimental copy of the blister machine was manufactured at the enterprise of KB Rotor OJSC (Ekaterinburg) and its tests were carried out, which showed good results.

 A search of the patent fund of the Russian Federation did not reveal Russian patents protecting similar developments. Comparison with known foreign analogues shows that the proposed device has a simpler design in comparison, for example, with a packaging machine, which offers the Mariupol medical equipment factory (Ukraine). This technical result is achieved by the fact that marking and cutting down the packaging on a machine developed by KB "Rotor" is carried out using one stamp equipped with marking letters. The specified technical solution is not obvious, because in known machines for similar purposes two independent units are used, located on separate sections of the technological line and requiring electrical and mechanical equipment in a whole cabinet.

 Based on the above information, we can conclude that this device meets the criteria of novelty, non-obviousness and industrial applicability, in connection with which it is proposed to legal protection by a patent for an invention.

Claims (3)

 1. A device for forming packages with pockets containing a drive drum, a feeder with a reel for the base tape, a unit for forming pockets in the base tape, a hopper for packable items, mainly tablets, in communication with a table for placing tablets in pockets, a reel for covering tape, a unit gluing the covering tape onto the base tape, a marking device including interchangeable marking letters, a knot of cutting the packaging of the tape containing a cutting table and at least two cutting dies having chopping protrusions, mounted around the perimeter of the stamp with the possibility of entering into the grooves on the table, characterized in that the marking letters are mounted on the stamp along the chopping protrusions on their inner side, while the stamps are staggered relative to the direction of movement of the tape.  2. A device for forming packages with pockets according to claim 1, characterized in that the bobbin with the base tape and the bobbin with the coating tape are installed on opposite sides of the tablet table, while the axis of the bobbins are symmetrically relative to the horizontal plane passing through the axis of the drive drum.  3. The device for forming packages with pockets according to claim 1, characterized in that the hopper is connected to the table using a removable multi-grooved tray, in which the number of streams is equal to the number of track pockets on the base tape.

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