DE1511735A1 - Machine for forming and applying the lids or bases on containers, especially for dairy products - Google Patents

Description

3931-66

Jacques Gaspard Honor! ' OLLIER, Georges Pr! D! Ric GROSSHAHS and Robert Gaston MASSON

Machine for forming and applying the lids or bases on containers, especially for dairy products

Priority: France, 12 September 1966

The invention relates to the machines for forming and applying the lids or bases on, in particular for Dairy products specific containers, in particular machines of the type described in the French patent Hr. 1.180.058 of the applicant of June 29, 1957 described Art.

The invention aims in particular to manufacture and apply the lids or bases to containers v / to be made possible economically and at a high working speed-

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cten. When applied to machines, the above The type described in the French patent, the invention also enables the formation and application of the soils or lids in synchronism with the other operations of these machines.

For this purpose, according to the invention, the cover

or bottoms made of a strip or a film, in particular from a thermoplastic material, formed by heating, shaping and cutting out of the strip or film, whereupon the lids or bases formed in this way are applied to the, in particular, filled containers.

In the preferred application of the invention to an automatic machine of the type described in said French patent, this Iiaechine for practicing the invention has devices which carry a roll of a heat-moldable strip, devices for heating the unwound strip, devices for hot-forming the strip, whereby these two devices may possibly coincide, devices for cutting out the lids or bases in the hot-formed part of the strip and devices, v / which draw the cut-out strips step by step through the heating devices, the hot-forming devices and the cutting devices, as well as devices v / which Apply the cut-out lids or bottoms to the containers, which are generally full, in the case of the latter _; ..ixißen with the cutting devices to a single inlet ·: can be united.

The invention relates in particular to aio ..- · .. position of yoghurt pots and other similar of "l3; eii: 'y--

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hold the in the by the notifying parties on the same day with the "Vain" method and device for the manufacture of yo {-urttpots and other similar / filled containers "submitted Patent application described

Art, or the production of packaging with a box and two / one lids in the patent application filed by the applicants on the same day with the title "Packaging with one box and two / two lids"
described type.

The invention is hereinafter referred to

explained on the drawing by way of example, the only illustration of which a schematic longitudinal section of an invention Arrangement for the formation of the floors and their application on reverse represents filled Jo ^ hurt pots.

The only figure shows in a larger Haßstab and in the case where a feed step, the arrangement A 1 DAAs of the thermoplastic strip three trays or lids in the longitudinal direction corresponds to FIG. The _t! Calibrate days by the Applicants entitled "Verfaliren and apparatus for the manufacture of yoghurt pots and other similar filled containers "; en patent application

(which is why on the drawing and in Fi ;; · 1 of the mentioned Patent application uses the same designation marks vurden). The device according to the invention contains:

- A roll holder 14, with a sleeve 14a made of a strip of a thermoplastic material for the rornund "of the bottoms or covers, this material being for example polystyrene, but also polyvinyl chloride or another" ..V.- kstoi'i. ' can be;

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- Redirecting pins $ 15

- a heater box $ 16

a hot forming unit 17 with a shape * 17t> and a counter-shape shown in the upper position. 17.Cf wherein the heating box 16 and the hot forming unit 17 e.g. have the type described in the French patent specification mentioned however, the heating devices and the hot-forming devices coincide, in which case the counter-mold is heated}

a unit 9 in which the hot-formed strip 17a is divided into a: series of bottoms or lids 9 & with the aid is cut apart by punches 9b cooperating with a die 9 £. These ropes 9g are either individually or in several such parts comprising flats on the inverted pots 5g down, which with yoghurt 84 or Another product filled but not yet closed Bind, these filled pots e.g. in a machine of the The downward movement of the ropes 9 &, which are used to form the bottom of the sealed and "twisted pots," preferably takes place in the unit 9 by means of the punches 9Jb, which you Cause elimination (in the illustration the stamps are 9J> fully extended in the upper position and shown in dashed lines in the position which it was immediately before application take the bottom S ^ on the yoghurt pots 5a);

- and step-by-step pulling devices-18, which pull the cut-out strip 18a. in sighting of arrow f goalkeeper pulling and preferably on the edges of the strip act (which were not heated in the heating box 16, which for this purpose is wet side screen

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having), the guide rails, not shown, the strip of pots 5a as it passes through the lower part of the Hold unit 9

The units 16, 17, 18 and 9 are preferably operated with compressed air so that they can be moved in the longitudinal direction on the frame of the machine (which can expediently be of the type described in the French patent mentioned) in order to change and adjust the To enable step. The pneumatic working cylinder A can be fed namely with the aid of flexible ducts, which allow the independent adjustment of the different% to those units.

As indicated in the above patent application relating to the manufacture of yoghurt pots and similar containers, the tape from the pots 5a is gradually advanced in the direction of arrow P, in synchronism with the incremental advance of the strip i8a in the direction of arrow f, where carried out the Aussehneiden soil 9a and their application to the pots 5a in the combined unit 9 for cutting and applying the floors, while the * means 18 do not work for forward pulling the strip 18a and the devices are not shown for forward pulling the strip 5a.

The sealing of the bottom 9a. on the container 5a. and the unfastening of the closed containers or pots and their ο removal are described in the patent application mentioned last.

The above descriptions describe an arrangement for the formation and downward movement of the floors, which in particular

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those for forming a rope of a machine in that mentioned Patent application for the production of filled yogurt pots or similar filled containers described is intended. It is understood, however, that this arrangement can also form and move lids, particularly for manufacture the packaging with a box and two lids in the same saga by the notifying parties entitled "Packaging with a box and two lids "filed patent application

described type. In this case

the lids thus produced and moved down form the inner unsealed lids on which outer ones fit Place the lid, which is sealed with the box and, if necessary, with the inner lid.

The machine according to the invention has.; Ogenuber the known machines of this type numerous advantages, in particular the following:

It allows the automatic shaping of the lid or trays and the application thereof, resulting in good pre ψ THE PREVIOUS sterilization to containers without Irgenrleine handling by workers, wherein the lid or floors are formed by heating.

The machine has the main advantages of the machine according to the aforementioned French patent specification, which has proven itself for many years.

Finally, the machine can have a -jr ■ -.-. ■ - · η

Part of the units and the frame of a machine g <_.._. r use the French patent mentioned, we ^ clu l> is mass-produced.

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The invention can of course be modified. In particular, it is applicable to a machine with several work places, which are discontinuous and not with wound strips but with foils of certain dimensions
is working.

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Claims (2)

Claims 1.) A method for forming and applying lids oäer bottoms on containers, characterized in that the lids or bottoms under the outgrowth of a strip or a Foil, in particular made of a thermoplastic material, by heating, shaping and cutting out of the strips or the Shaped film and then pressed onto the particularly filled container v / ground. 2.) Device, in particular for an automatic machine of the type disclosed by the applicants on June 29, 1957 filed French patent specification IJr. 1.180.058 described Art for performing the method according to claim 1, characterized by devices (14) which have a role (I4ji) carrying a thermoformable strip, means (16) for heating of the unwound strip, devices (17) for hot-forming the strip, these devices possibly coinciding can, means (9) for cutting out the lid (9a) or bottom from the hot-formed 2? part of the strip, and devices (18) which pass the cut-out strip step by step through the heating devices Pull hot forming devices and cutting out devices, as well as facilities which the cut-out cover or Apply soil to the generally filled containers, these latter devices being able to be combined with the cutting devices into a single unit. NS. 909886/0484
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