Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
  • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
  • B65B31/022—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas the chambers moving in an endless path

Definitions

• the invention relates to a machine for packaging a product under vacuum or in a controlled atmosphere with bells and lids, which are arranged on two separate annular conveyors.
• the most important problem to be solved is that of eliminating all the disabilities that arise during the numerous transfers, both of the empty bags before they are filled and the full bags before they are vacuum sealed, as well as the sealed bags the completion of the necessary finishing work for packaging can occur in square packages. This is the basis of the invention and has been solved by it.
• the invention relates to a machine for packaging a product under vacuum or in a controlled atmosphere with bells and lids, which are arranged on two separate annular conveyors, which is characterized in that the annular paths of the two conveyors on two separate, superimposed horizontal planes run.
• the bags are inserted directly into the bells at the beginning of the working cycle, inside which they remain throughout the entire technical process phase, only being removed in the form of square packages at the end of their packaging.
• the machine according to the invention which is constructed in accordance with the proposed novel solution, provides for the elimination of the problems described above which still exist in the known machines.
• all possibilities of jamming that occur during the transfer of the bags are eliminated, since these are entered directly into the bells at the beginning of the working cycle, inside which they remain stable without having to be transferred in any way.
• the invention arose as the conclusion of a series of systematic trials, the fact or the hypothesis confirm that with the removal of the numerous transfers of the bags there is a complete disappearance of the typical jams that occur in the various transfer operations of the bags.
• the conveyor device located underneath is longer and equipped with a plurality of bells at the same distance with an upwardly directed sealing surface.
• the overhead conveying device is shorter and equipped with a smaller number of lids at the same distance and with the same step distance as for the bells, but with a sealing surface directed downwards.
• both conveying devices pass through at least one section in which the parts lying one above the other are identical and in which, under unchanged conditions or the same kinematic conditions, the perfect adaptation is achieved by superimposing the sealing level of each individual downward-facing cover and the sealing level of the corresponding bells passing underneath, directed upwards, which produces a hermetic seal.
• this is kinematic for carrying out the closing of the bells, that is to say moving the respective covers, in such a way that the path of the two conveyor devices running one above the other converges in such a way that a state of unchangeable kinematic equality is established , set up.
• the machine is kinematically designed to open the bells, that is to say to remove the corresponding covers, in such a way that the two superimposed conveying devices diverge, that is to say the state of unchangeable kinematic equality is eliminated.
• this is set up for moving the bells without a lid, that is to say open at the top, upstream of the section of kinematic equality, in order to make it possible for the bags, which are always stable in the same bell, to be arranged in an orderly manner Sequence of technical workflows are carried out to prepare them upstream or to complete them downstream.
• the machine is set up in such a way that one or more bags, either empty or already filled, are entered directly into a bell at the beginning of the working cycle and remain stable there during the execution of all packaging phases, whereby they are only pulled out of the bells at the end of the workflow, in order to then be placed in the form of square packets on the conveyor belts.
• Figure 1 is a perspective snapshot of the functional diagram of the process of the entire technical process of packaging under vacuum or in a controlled atmosphere from molded bags starting from a band of flexible material.
• Fig. 2 shows the position taken by the two conveyors after a complete rotation of the lid connected to the upper conveyor, i.e. after the simultaneous advance by ten steps of the bells passing underneath and connected to the lower conveyor;
• FIG. 3 shows a momentary view of the configuration of the machine after a further advance by ten steps, both of the bells and of the synchronized covers passing above them;
• FIGS. 4 and 5 schematically the section 25 of the lower conveyor and the section 26 of the upper conveyor, which are geometrically identical, in stationary states of identical kinematics;
• Figures 6, 7 and 8 further possible configurations of the section in which the two separate conveyors 25 and 26 take the same identical synchronized path, each of which runs on two horizontal planes;
• 15 shows a further possible embodiment variant in which the bags coming from a shaping station (not shown) are empty when they are directly inserted into the individual bells which pass by in synchronized fashion and are connected to the conveying device 25;
• 16 shows a further possible variant of the position of the star 42 for the shaping of the bags, from which they are input directly into the individual synchronized passing bells connected to the conveying device 25;
• FIG. 17 shows a modified embodiment of the equipment in which the already filled bags are directly input into the bell, for example from the vertical packaging device 48;
• Fig. 18 shows another combination of the equipment with a mandrel support star 42, which is arranged horizontally and from which the empty bags directly into the bells entered, which are aligned accordingly in a horizontal position.
• the bells are numbered from 1 to 24.
• the covers are marked with the Roman numerals I to X.
• the passing bags are marked with the numbers 95 to 146.
• 25 indicates the lower conveyor, 26 the upper conveyor and 27 the final discharge belt of the bags which have already been completely packed in the form of square packages.
• 28 denotes the rotary distributor of the vacuum circuit for removal.
• 29 denotes the vacuum pump.
• 30 is a vacuum suction circuit, at 31 a pulse generator for the thermal seal, at 32 a rotary distributor of the pulses for the sealing pliers, not shown, which are arranged inside the lid, at 33 a filling meter for the substances to be entered into the bags passing underneath, at 34 a printing device for compressing the substances entered into the bag with
• 35 a device for shaking the substances entered into the passing bags, with 36 a level sensor for the substances entered into the passing bags, with 37 a device for forming side bellows on bags and with 38 a cutting device for the end of the approach of the bags designated after execution of the side bellows.
• the necessary energy is supplied via the rotary distributor 32, which transmits the energy impulses to the sealing pliers, which it received from the generator 31.
• the sealing pliers are not shown, but are located inside the ten covers connected to the conveyor 26.
• the bells are opened, i.e. that is, the removal of the corresponding covers, by the successive divergence of the paths of the conveyor devices 25 and 26.
• the device 37 effects the preparation of the side bellows on the bag 113.
• the cutting device 38 cuts off the shoulder after the lateral bellows have been previously formed.
• the work that takes place in the upstream area can also be of a different nature depending on the technological requirements of the packaging process.
• the plate 39 flattens the attachment already applied to the body of the bag, which thus takes the form of a completely square package.
• the device 40 attaches an adhesive tongue to the package 100 to secure the flattened shoulder to the top of the square package.
• the puller 41 removes the package 99 from the bell 21 and aligns it with the packages 98, 97, 96 and 95 that have already been placed on the discharge belt 27.
• each shaping mandrel on the star 42 is equipped with a puller 45, the vertical movements of which are carried out against the pressure of a fixed cam 44 the one, which is shaped according to the underlying bell 1 in a suitable shape down.
• the pullers 45 pull the bag 119 off the mandrel and insert it into the bell 1 underneath which is connected to the conveying device 25.
• the mandrel from which the pouch 119 has been removed is thus free to receive the foil 124 which is pressed down by the rod 46 before it is cut off by the cutting device 47.
• the flexible material used for the manufacture of the bags is unwound from the roll 43.
• reference numerals 125, 126, 127, 128 and 129 show the areas which are successively cut into individual foils which are to be wrapped around the mandrels in order to assume the shape of bags.
• the phases of winding the films 123, 122, 121 and 120 around the mandrels of the star 42 are indicated.
• the various details of the complete shaping of the bags are not shown because the corresponding technology is already state of the art.
• Fig. 2 it can be seen in detail that after ten feed steps in the cutting phase, the film 134 is pressed down by the mandrel and not the film 124, which has already moved ten steps in the form of a bag that is already filled, vibrates and was compressed into the corresponding bell 20, where the level is also checked. It should be noted that the films still to be cut are indicated in FIG. 2 by the reference numerals 134, 135, 136, 137, 138 and 139 and that they unwind from the roll 43.
• the scope of the invention includes all machines for vacuum packaging or machines for packaging in a controlled atmosphere, in which both the empty and the full bags are fed directly into bells, which are guided accordingly and in which they remain stably inserted, whereby they are processed there in an orderly sequence, and they are definitely only deducted at the end of the entire technological process and then placed on a conveyor belt for removal.

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vacuum Packaging (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Containers And Plastic Fillers For Packaging (AREA)
• Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=11105030

Family Applications (2)

Family Applications Before (1)

Country Status (19)

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• 1987
  • 1987-01-21 IT IT8703326A patent/IT1207602B/it active
  • 1987-05-05 AT AT87106328T patent/ATE74561T1/de not_active IP Right Cessation
  • 1987-05-05 WO PCT/EP1987/000233 patent/WO1988005401A1/de active IP Right Grant
  • 1987-05-05 EP EP87106328A patent/EP0275346B1/de not_active Expired - Lifetime
  • 1987-05-05 DE DE8787106328T patent/DE3778142D1/de not_active Expired - Lifetime
  • 1987-05-05 AU AU75116/87A patent/AU594479B2/en not_active Ceased
  • 1987-05-05 EP EP87903689A patent/EP0298994A1/de active Pending
  • 1987-05-05 JP JP62503422A patent/JPH01501858A/ja active Pending
  • 1987-05-05 BR BR8707636A patent/BR8707636A/pt not_active IP Right Cessation
  • 1987-05-05 HU HU873282A patent/HU204466B/hu not_active IP Right Cessation
  • 1987-05-05 ES ES198787106328T patent/ES2030011T3/es not_active Expired - Lifetime
  • 1987-07-11 CN CN87104757A patent/CN1015975B/zh not_active Expired
  • 1987-10-02 AR AR87308922A patent/AR247164A1/es active
• 1988
  • 1988-01-19 CZ CS88363A patent/CZ279055B6/cs unknown
  • 1988-01-21 CA CA000557012A patent/CA1291021C/en not_active Expired - Lifetime
  • 1988-09-12 FI FI884178A patent/FI85003C/fi not_active IP Right Cessation
  • 1988-09-20 BG BG085472A patent/BG49821A3/xx unknown
  • 1988-09-20 DK DK522188A patent/DK522188A/da not_active Application Discontinuation
  • 1988-09-21 SU SU884356489A patent/SU1671158A3/ru active
• 1992
  • 1992-04-09 GR GR920400526T patent/GR3004322T3/el unknown

Non-Patent Citations (1)

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