US20100035739A1 - Apparatus and method for manufacturing lids with tear-off foil - Google Patents

Apparatus and method for manufacturing lids with tear-off foil Download PDF

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Publication number
US20100035739A1
US20100035739A1 US12/512,364 US51236409A US2010035739A1 US 20100035739 A1 US20100035739 A1 US 20100035739A1 US 51236409 A US51236409 A US 51236409A US 2010035739 A1 US2010035739 A1 US 2010035739A1
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United States
Prior art keywords
securing
station
transport
transport means
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US12/512,364
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English (en)
Inventor
Peter Gysi
Peter Taiana
Rene Raas
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Soudronic AG
Original Assignee
Soudronic AG
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Filing date
Publication date
Application filed by Soudronic AG filed Critical Soudronic AG
Assigned to SOUDRONIC AG reassignment SOUDRONIC AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Raas, Rene, TAIANA, PETER, GYSI, PETER
Publication of US20100035739A1 publication Critical patent/US20100035739A1/en
Priority to US13/571,460 priority Critical patent/US8641349B2/en
Priority to US14/170,672 priority patent/US9764374B2/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B21D51/443—Making closures, e.g. caps easily removable closures, e.g. by means of tear strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B21D51/446—Feeding or removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/10—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface
    • B65G15/12—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts
    • B65G15/14—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts the load being conveyed between the belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles

Definitions

  • the invention relates to an apparatus for the manufacturing of container covers or lids, respectively, with a tear-open foil, comprising a linear transport means for the horizontal transport of lid parts and lids along the manufacturing line, wherein the lids are secured against a take-off in a vertical direction along a part of the manufacturing line by means of a guidance, at least a de-stacker arranged at the beginning of the transport means, which delivers blank lid parts from at least one stack to the transport means, a sequence of working stations arranged along the transport means, optionally including a turning station, and a discharge station at the end of the linear transport means. Furthermore the invention relates to a method for the manufacturing of container lids or covers, respectively, with a tear-open foil.
  • the invention is related to another apparatus for the manufacturing of covers or lids, respectively with tear-open foils with a transport means providing a linear transport path with successive receptions for blank lid parts formed by reception parts of the transport means. Furthermore the invention relates to another method for the manufacturing of covers or lids, respectively with tear-open foils, the lids having different diameters.
  • covers or lids for can-like or box-like containers as metal covers which are permanently attached on top of the package and which provide an extraction opening which is sealed until the first use of the container contents by means of a foil, particularly a metal foil, applied by heat-sealing and which can be torn-off.
  • An additional plastic cover which is arranged above the metal cover makes the package resealable during the period of consumption of its contents. Manufacturing steps during the manufacturing of such so-called tear-open or tear-off covers or lids will be explained in the following on the basis of the FIGS. 1 to 7 .
  • An apparatus for the manufacturing of tear-open covers of the above type is known from WO 2006/017953. It comprises a linear transport means for the transport of the covers within the apparatus along their manufacturing line, wherein the transport means secures the covers mechanically or magnetically against a take-off out of the cover reception during their horizontal linear motion on a part of the transport path.
  • the mentioned apparatus has proven itself and allows the high production rate manufacturing of ordinary covers or lids made of tinplate or sheet steel, which can amount to for example 200 covers per minute. It is preferable to equally reach such cadences for very light covers made of light metal, particularly aluminium.
  • This task is accomplished within the aforementioned apparatus in such a way, that securing means for the conveying of the covers from the blank state to the state of finished cover throughout the apparatus, which are permanently effective from the de-stacker to the discharge station, are provided, which securing means always secure the cover parts against an undesired take-off from the transport means.
  • very light covers can be manufactured with high rate by means of the permanent securing along the manufacturing path of the cover parts which are moved intermittently through the apparatus, thus especially a securing in the processing stations as well as in the transfer from the de-stacker to the linear transport means and into the discharge station.
  • the covers jump out of their receptions in the transport means in the area of the processing stations because of the permanent start-up and stop of the transport means or because of small outside influences, which can lead to an interruption of the manufacturing.
  • the securing means are engineered with a combination of fixed securing elements and movable securing elements, and particularly also with securing elements which act using negative pressure or vacuum, respectively.
  • the combination of different securing means and securing elements, respectively yields a continuous positive guidance of the cover parts and covers, respectively, which is particularly well adapted to the cover manufacturing.
  • it is preferably carried out by means of vacuum as well as mechanical down holders, thus allowing the secure and constantly held delivery of the cover blank from the de-stacker to the linear transport means or conveying means, respectively.
  • movable securing elements are preferred as securing means in processing stations, providing an always secure holding of the cover parts despite the motion requirements in the processing stations.
  • the movable securing elements are formed by rails, which are arranged in a springy way within the upper part of the tool and extend in transport direction, and are particularly to be found in the cutting station and the punching station, respectively, in which the extraction opening is cut out of the cover blank.
  • movable securing elements can be provided within a forming station and/or a rolling station and/or in an embossing station.
  • the positive guidance is particularly formed by fixed covering elements which are located on both sides of the longitudinal transport axis, with safety plates which are bend down with respect to the cover parts, such for example in a oiling station which is located between the cutting station and the forming station, and also along conveying sections for the cover parts in which no processing occurs.
  • fixed infeed elements can for example be provided as securing means for the transfer from the linear transport means to the turning station.
  • both fixed and movable securing elements are particularly provided at the foil punching and pre-sealing station as securing means or positive guidance, respectively, which comprise vertically springy relocatable rails as movable securing elements in the area of the upper sealing tool and which comprise down holders as fixed securing elements, whereas a holding or a positive guidance, respectively, which acts by means of low pressure is provided within the lower sealing tool, thus resulting in a high reliability of the constant holding of very light cover parts in this step which is particularly important for the manufacturing.
  • the springy movable securing elements act as ejectors from the upper tool after the processing of the cover part.
  • Preferably fixed and movable securing elements which are preferably provided in the same combination as in the pre-sealing station, are equally provided in the main sealing station.
  • the securing means respectively the positive guidance are preferably formed by a vacuum guidance, thus not disturbing the view of the sealing area.
  • tappets for forming the respective reception for the cover parts are arranged at the linear transport means in a way resulting in receptions for two cover parts of different sizes, alternating along the transport.
  • This allows the use of the apparatus for cover parts of different diameters without refitting the apparatus, by respectively loading only the fitting receptions while the other receptions remain empty.
  • the transport means then carries out transport steps with double length, such that only the receptions of the one size loaded with the cover parts come to be located stationary in the processing station and the other empty receptions of the other size are transported substantially without stopping through the processing stations.
  • the holding is preferably carried out by fixed securing elements and by means of movable securing elements, and particularly also by means of securing elements acting with a vacuum.
  • the securing at the de-stacker takes place particularly by means of a vacuum as well as by means of down holders and movable securing parts are used for the securing in the processing stations.
  • the guiding respectively the holding of the cover part takes place by means of securing parts which are springily arranged in the upper tool part, which is particularly advantageous in a cutting station and/or a forming station and/or a rolling station and/or a embossing station.
  • the securing particularly takes place by means of fixed securing elements, particularly by means of covering elements with guide noses which are located on both sides of the longitudinal transport axis.
  • Preferably fixed and movable securing elements are used for the securing against the take-off during foil stamping and pre-sealing, wherein particularly in the area of the upper sealing tool eject runners or rails which are arranged springily in the tool, are provided as movable securing elements and down holders are provided as fixed securing elements and a holding acting by means of a vacuum is used as positive guidance in the lower sealing tool.
  • the latter can be interrupted by for example a controlled air supply.
  • main sealing fixed and movable securing elements are preferably provided for holding, particularly in the area of the upper sealing tool eject runners are provided as movable securing elements and down holders are provided as fixed securing elements and the holding in the lower sealing tool takes place by means of low pressure, which is interruptible particularly by means of a controlled air supply.
  • the securing is preferably provided by means of low pressure.
  • a cooling and a strap aligning station it is proceeded in a way, that the adherence of the cover to a lower turntable takes place by means of low pressure.
  • the positive guidance is carried out particularly by means of cover plates with securing bridges showing downwards, which are arranged on both sides of the longitudinal central axis of the transport means above the transport plane.
  • the tappets respectively the entraining lugs are preferably arranged on each side of the longitudinal central axis with mutually different distances respectively lug distances.
  • the invention is related to the task of simplifying the manufacturing for cover parts with different diameters within the cover manufacturing of tear-open covers with a linear transport means with tappets arranged at bands, belts or chains, particularly according to the described method, but equally for methods according to the prior art.
  • FIG. 1 to FIG. 7 show sectors of tear-open covers for the explanation of steps for their manufacturing
  • FIG. 8 shows a simplified side view of an apparatus for the manufacturing of tear-open covers by means of another order of steps
  • FIG. 9 shows a top view onto the apparatus of FIG. 8 ;
  • FIG. 10 shows a graphical view of the apparatus of FIG. 8 ;
  • FIG. 11 shows a graphical view of an embodiment of the transport means, as known from the prior art
  • FIG. 12 shows a graphical view of the receptions for the cover blanks respectively covers at the transport means
  • FIG. 13 shows a vertical section view of a part of the transport means with the covering with a bent down bridge for securing
  • FIG. 14 shows a vertical section view of a part of the cutting process station with movable securing elements within the upper tool
  • FIG. 15 shows a vertical section view of a part of the processing station for the forming of the edge of the extraction opening
  • FIG. 16 shows a part of a processing station for the rolling of the formed edge in a partial vertical section view
  • FIG. 17 shows a vertical section view of a part of a processing station for the punching out of the tear-open foil and its pre-sealing onto the cover ring;
  • FIG. 18 shows a vertical section view of a part of a processing station for the main sealing
  • FIG. 19 shows a side section view of the securing by means by vacuum or low-pressure, respectively, in the area of an inspection of the covers;
  • FIG. 20 shows the processing station for cooling and with turntable for aligning of the tear-open straps
  • FIG. 21 shows a view of the transport means with entraining lugs, which have different distances from each other and which therefore form receptions for covers of different sizes on the same toothed belt.
  • FIG. 1 shows stacked metal cover blanks 20 as an example for items as they can be found in the stack.
  • These cover blanks 20 are for example round metal discs or slices, respectively, of for example 11 cm of diameter.
  • cover blanks 20 have already been pre-shaped beforehand at their edges, as shown in FIG. 1 , in a processing machine not shown here.
  • FIG. 1 and the following figures only a sector of the entire slice is shown respectively, in order to simplify the figures.
  • the cover blanks 20 are released one by one from the stack by means of a de-stacker and passed on to receptions, particularly with reception lugs, of the linear conveying means which transports the cover blanks and later the covers stepwise and brings them to the individual processing or working stations, respectively, whereat the linear conveying is interrupted in order for the processing to be carried out.
  • a further transport to the next processing station is carried out.
  • the first processing station which subsequently will be called cutting station, an opening is punched into the part 20 by means of a punching process with upper and lower tool, which can be seen in FIG.
  • edge of the opening is denoted with 21 and the punched out round slice with 27 , which is disposed of as debris.
  • the cutting station is driven by an actuator, like it is the case for the subsequent stations.
  • An oiling can be carried out for the next processing steps within the next processing station along the linear transport path and then a forming of the edge 21 is carried out in the next processing station in the figure downwards, whereby the course 22 of the edge, shown in FIG. 3 is reached (in case of a modified following embodiment, whereby the cover blanks initially lie turned by 180°, the forming would on the other hand be carried out in the figure “upwards”).
  • the tear-off foil can be a metal foil, a plastic foil or a combined foil including layers of metal and plastic material.
  • the foil 25 is provided with a plastic layer on its bottom side that provides for the heat sealing.
  • the required round foil cut 25 is normally itself punched out of a wide foil web in the heat sealing station and placed over the central recess of the ring-shaped slice and the foil is pressed at the edge of the round recess of the part 20 by the heating effect of the heat sealing station, such that the foil 25 is tightly jointed with the metal cover 20 by melting and subsequent cooling of the plastic layer.
  • This is known and will not be explained in more detail here.
  • Particularly the steps can equally be carried out in two stations, wherein in one station a punching of the foil and a pre-sealing of it to the cover ring and in a subsequent main sealing station the final sealing is carried out.
  • a further processing station can be provided for the cooling.
  • the foil 25 may be provided with an embossing 24 ( FIG.
  • the finished covers undergo a checking, which comprises a leak testing for the peel-off foil 25 which is attached onto the cover and/or an optical checking by means of a heat detection camera which can detect insufficiently heated parts of the sealing joint. If the foil is attached to the rest of the metal cover in a leak proof way, the cover ends up in the discharge station. If a leak is detected, the cover ends up on a chute, into a debris bin or an appropriate elimination is carried out at the exit of the station.
  • a checking which comprises a leak testing for the peel-off foil 25 which is attached onto the cover and/or an optical checking by means of a heat detection camera which can detect insufficiently heated parts of the sealing joint. If the foil is attached to the rest of the metal cover in a leak proof way, the cover ends up in the discharge station. If a leak is detected, the cover ends up on a chute, into a debris bin or an appropriate elimination is carried out at the exit of the station.
  • FIGS. 8 , 9 , 10 now show in a simplified side view as well as top view and in a graphical representation an embodiment of the apparatus for manufacturing tear-open covers according to the invention in a simplified manner.
  • the de-stacker is shown in a simplified way and the processing stations are only indicated insofar, that at their position the respective cover blank to be processes respectively cover is shown above the transport means, because the processing station has lifted the cover blank or the cover, respectively, for processing from its reception in the transport means.
  • the individual processing stations and the de-stacker are basically built for the processing operations and for the de-stacking according to the prior art and are known to the skilled person and therefore do not have to be discussed in detail here.
  • the apparatus 1 has a transport means 3 with two parallel transport paths, such that two streams of covers can be manufactured at once. Equally, only one transport path or more than two transport paths could be provided.
  • the transport means has, particularly for each transport path, two rotatingly actuated toothed belts which are arranged parallel in a distance from each other, to which lugs are attached, not being shown in FIGS. 8 , 9 and 10 . Two pairs of opposed lugs provide a reception for a cover part or cover, as known from the international patent application WO 2006/017953, which contents are incorporated herein by reference.
  • FIG. 12 show in a graphical manner a transport means which is used for the sequential conveying of the covers to the individual processing stations. These processing stations are also not shown in FIG. 11 , however it is clear for the skilled person how they can be arranged along the conveying device in order to carry out the respective processing. In FIG. 11 equally two transport paths are shown. They can be actuated by means of the same drive 33 , 37 or they can each posses an own drive. By means of the shown transport means the cover parts or covers can be conveyed to the processing stations with a high rate of for example 200 covers per minute and with exactly reproducible step lengths.
  • the transport means is executed as a compact module for a one path or, as shown, a multiple paths setup.
  • the transport means has two toothed belts 31 and 32 , which are particularly located with their surfaces in the same plane, thus run coplanar, and which are guided via deflection rollers at the beginning and at the end of the conveying device, such that an endless toothed belt actuator with the length required for the number of processing stations results.
  • the stepwise motion of the toothed belt which is synchronised with the processing stations, is caused by a step motor or servo motor which actuates the toothed belts by means of tooth rollers, as can be seen in FIG. 11 with the motor 33 and the drive shaft 38 . If further transport paths are provided, their toothed belts can be actuated by means of the same motor via further drive shafts or possess an own motor.
  • the motor 33 is controlled by means of a controller 37 for the undertaking of the stepwise forward motion of the toothed belt, which controller 37 is either an entire controller of the cover manufacturing apparatus, which equally controls the processing stations, or which controller 37 is a controller for only the transport means, which communicates with a superordinate controller for the cover manufacturing apparatus.
  • the motor 33 and the further actuator components for the toothed belts are arranged at a machine frame which is indicated in the figure only by the feet 35 .
  • the tappets for taking up the covers, particularly provided by entraining lugs, are attached at the toothed belts, forming the receptions for the covers and which are generally labelled with 40 in FIG.
  • the covering 50 has respectively a recess 52 , which allows a taking out of the objects from the receptions in order for the object to be lifted from the lug and processed in the processing station and subsequently given back to the reception.
  • a recess 52 are provided between the processing stations, such that the take-off of the objects from the lugs is blocked by the covering in that area.
  • the tappets can be magnetically formed, which can also prevent a take-off of the objects during the conveying step, if the object consists at least partly of a magnetically gripable material.
  • the mutual distance of the toothed belts 31 and 32 is adjustable, whereby the distance of the opposed lugs 40 of both toothed belts is adjustable in order to adapt the transport means to different object sizes.
  • cross connections 58 can be provided at the transport means, which allow a simple adjustment of the mutual distance of the toothed belts.
  • the drive shafts 38 are arranged accordingly, in order to make this distance adjustment possible.
  • the tappets which are generally labelled with 40 , are shown as entraining lugs 41 and 41 on the toothed belt 32 and as entraining lugs 43 and 44 on the toothed belt 31 and it is evident how the cover ring 20 is carried and transportable by the entraining lugs, wherein the tappets allow the upward take-off of the cover ring respectively of the cover, which is necessary within the processing stations and also allow the loading from the top within the de-stacker.
  • the mutual distances of the entraining lugs on the respective toothed belt are given by the division of the toothed belt and the tappet attachment. This distance can be changed in such a way for an adjustment to the cover size, that the toothed belts are changed with a set of other toothed belts with entraining lugs which are attached in another mutual distance.
  • a large reception size range for covers can be created by mutual distance adjustment of the toothed belts and by changing the toothed belts with differently spaced tappets.
  • a refitting to different object sizes for all tappets can be carried out simultaneously.
  • a further aspect of the invention will be explained, which allows the processing of covers of different sizes in another way which makes the changing of the toothed belts for the manufacturing of covers with two different diameters obsolete.
  • the tappets 41 to 44 are attached to the toothed belt in a known way, by taking off the respective tooth of the toothed belt and changing it with an attaching element which is screwed to the tappets.
  • This way of attachment is known to the skilled person and will not be further shown here. Hence, all further attachment possibilities of tappets to tooth belts are equally applicable, like for example the adhesive bonding attachment of tappets.
  • FIGS. 8 , 9 and 10 it is shown that at the beginning of such a transport means 3 a de-stacker 4 is provided, which releases the cover blanks 20 downwards from two stacks in a cyclic way and therefore passes them one by one to the respective ready receptions of the transport means 3 .
  • this is carried out with a start position of the cover blanks which is turned by 180°, such that the side of the cover blanks which is supposed to be provided with the tear-open foil first comes to lie downwards in FIG. 1 and a turning has to occur along the transport path, when the tear-open foil is applied from the top.
  • FIGS. 9 and 10 respectively show a cover blank 20 in the respective reception of the transport means 3 underneath the de-stacker.
  • a central down holder 6 which is arranged above and with little distance to the respective cover blank, is preferably arranged for example in the shape of a large rail which is attached to the bottom side of the de-stacker.
  • This down holder acts for securing while the covers blanks are moving from the position 2 a to the following position 2 b.
  • the securing extends by means of the low pressure also from the area of de-stacking further in longitudinal direction of the transport means respectively further along the manufacturing path, at best partly intersecting with the securing by the down holder 6 .
  • side guidances 5 take over the securing against the take-off of a cover blank, which is transported stepwise from the position 2 a beneath the de-stacker into both further positions 2 b and 2 c, wherein no processing occurs.
  • the side guidances 5 are (compared to the coverings 50 according to the prior art in FIG. 11 ) arranged in such a way, that they provide a bridge 5 ′ which points downwards in the direction of the cover blank 20 and the reception of the transport means. This leads to a good securing against the take-off of the cover blank during the conveying by the transport means.
  • the cover blank 20 reaches the position 2 d, wherein a stopping occurs again and the cover blank has reached the processing station 7 , wherein the cutting off of the part 27 takes place ( FIG. 2 ).
  • These down holders 18 secure against a take-off of the cover blank by ending, in their idle position, in a small distance above the cover blank (by means of a stroke which is not shown, which limits the way downwards of the down holder 18 in the figure).
  • the down holders 18 start and end along the transport path in such way, that they are arranged in an intersecting way with the coverings 5 ( FIG. 9 ), such that a continuous securing during the transport of the cover blank from the position 2 c into the processing position 2 d and after the processing into the further position 2 e results.
  • the down holders 18 which are arranged upwards resiliently with the springs 19 , contact the cover blank during its lift up by the lower tool when the cover blank is brought into the processing position above the reception in the transport means, however they springily retract, such that no hindering of the lift up by the lower tool results; however the down holders avoid an undesired take off of the cover ring just by its transport motion or outer influences before and after the lower tool has lifted up respectively has put down again the cover ring.
  • FIG. 8 and FIG. 10 the cutting respectively the processing station 7 is only shown by the cover blank 20 which is shown above its reception.
  • an oiling of the cover blank 20 can be carried out as a processing step, as preparing step for the subsequent forming of the edge ( FIG. 3 ), wherein the securing against the take-off can be carried out for the oiling in the processing station 8 by means of the covering 5 and the bridge 5 ′, as shown in FIG. 12 .
  • the forming of the edge of the extraction opening of the tear-open cover takes place in the position 2 f along the transport path, for which also an upper and a lower tool are provided within a processing station 8 , as shown in FIG. 14 .
  • movable down holders are preferably provided analogue to the solution at the cutting process station.
  • a vertical section view of the forming process station 9 is shown in FIG. 14 , wherein movable down holders 18 are equally provided. Thereby the springs are not shown in this section view.
  • a further step of the transport occurs with the transport into the turning station 11 respectively the position 2 i.
  • the cover blank which has previously been processed as a cover ring with formed and rolled edge, is turned by 180° in the turning station, as can be seen in FIG. 8 .
  • a taking out of the cover ring from its reception is carried out by means of the turning station.
  • a securing is given by the transport means preferably during the insertion, in such a way that the down holders 18 of the rolling process station reach so far along the transport means, that the cover ring is secured until it is itself held within the turning station; however it can also have own securing means during the insertion into the turning station.
  • a securing by the turning station takes place until the securing along the transport path in the positions 2 k and 2 l is again taken over by for example a covering 5 with the bridge 5 ′, as can be seen in FIG. 9 .
  • the cover ring reaches the punching and pre-sealing station 12 respectively the position 2 m, being now arranged with that side up, which has to be supplied with a tear-open foil.
  • the securing against an undesired take-off from the reception takes place preferably my means of movable securing elements which are formed by rotatable securing bars, as can be seen in FIG. 16 .
  • the bars constitute the securing against take-off when inserting the cover ring into this processing station in a position rotated downwards.
  • the bars are rotated upwards because the sealing tool takes over the securing itself within this step.
  • the securing can again be carried out by means of low pressure in the lower tool after opening of the pre-sealing tool.
  • a centrally arranged down holder 6 can take over the securing and afterwards the guidances 5 with bridge 5 ′ are again used to secure the cover with the pre-sealed foil which is applied to the cover ring. This is also valid for the positions 2 n and 2 o wherein no processing occurs.
  • the cover reaches the position 2 p respectively the main sealing station 13 , wherein a securing can be carried out on the one hand by means of movable, springy arranged down holders, as shown in FIG. 17 with the down holders 18 and their springs 19 .
  • the cover In the upper tool there may be discharge handles 12 ′ securing the cover. Additionally or alternatively a securing by means of low pressure can be carried out, while the down holders are not in action.
  • the finishing sealing of the tear-open foil to the cover ring is done in a known way, which is familiar to the skilled person.
  • the transport into the position 2 q is carried out, wherein no processing can be performed and after that into the position 2 r, wherein a cooling of the sealing and an aligning of the tear-open strap of the tear-open foil is carried out on a turntable in substantially a known way.
  • a securing of the cover takes place on the turntable by means of low pressure or vacuum, respectively.
  • FIG. 19 shows in section view a sucking in case 60 with openings at its upper side and an air inlet duct 61 at its lower side, via which the covers are transported and via which a securing of the covers against a take-off during the transport takes place.
  • a securing against the take-off from the turntable of this processing station 15 takes place preferably, as mentioned, by means of low pressure, as can be seen in FIG. 20 , which shows the turntable and the respective low pressure connector 63 .
  • the embossing of the tear-open foil ( FIG. 6 ) takes place, wherein vertically arranged down holders, which are held in a springy and movable way, are again preferably used for the securing. Unmovable guidances can be used for securing during the transport between the positions 2 r and 2 s.
  • coverings 5 with bridges 5 ′ are again used.
  • the generation of vacuum or low pressure, respectively, preferably takes place centrally by means of a vacuum fan and the repartition of the low pressure by means of pipes into the processing stations respectively transport sections.
  • a vacuum fan In order to release a cover which is held by low pressure it can be provided that the low pressure area is connected underneath the cover by means of a controlled valve to the ambient pressure or to an air pressure source which generates an over pressure. Thereby the holding respectively the securing by means of low pressure is neutralized fast.
  • this vacuum can be generated by a jet of air as well.
  • a jet of air Taking into account the situation of FIG. 17 it is possible to eject a jet of air by the central air line 20 ′ as long as the cover does not seat on the lugs. Thus a stream of air will pass through the gap between the cover and the lugs generating there a zone of lower pressure due to the higher air velocity in the gap which leads to a seating of the cover into the lugs. Then the jet of air has to be stopped.
  • FIG. 21 shows the two toothed belts 31 and 32 of the transport means, which run parallel and are formed by entraining lugs, with a couple of the receptions 40 for the cover blanks respectively covers, which are arranged to them.
  • receptions for two different cover diameters are provided alternatingly one after the other on the toothed belt, such that for example a lug distance “a” of associated entraining lugs, together forming a reception, of for example 30 mm, is followed by a lug distance “b” of associated entraining lugs, together forming a reception, of for example 40 mm, and is then followed again by a lug distance a of 30 mm and again by a lug distance of for example 40 mm etc.
  • This allows in a simple way and without refitting of the transport means, its use for two different diameters of cover blanks respectively covers.
  • the transport means carries out each individual step with essentially the double step length, because the receptions with the mutually closer located entraining lugs are not used and remain empty and run through the processing stations without stopping there. If the apparatus for manufacturing covers is used for the production of covers with the smaller diameter, only the receptions with the mutually closer located entraining lugs are loaded with cover blanks.
  • the transport means carries out steps with an essentially double step length because the respective receptions with the entraining lugs which are located further from each other are not used and run through the processing station without stopping there.
  • the refitting is then limited to the processing stations respectively to the tools used there, as known, however the extensive changing of the toothed belts is omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Closing Of Containers (AREA)
  • Laminated Bodies (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closures For Containers (AREA)
US12/512,364 2008-08-07 2009-07-30 Apparatus and method for manufacturing lids with tear-off foil Abandoned US20100035739A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/571,460 US8641349B2 (en) 2008-08-07 2012-08-10 Apparatus and method for manufacturing lids with tear-off foil
US14/170,672 US9764374B2 (en) 2008-08-07 2014-02-03 Apparatus and method for manufacturing lids with tear-off foil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01233/08A CH699295A2 (de) 2008-08-07 2008-08-07 Einrichtung und Verfahren zur Herstellung von Deckeln mit Aufreissfolie.
CH1233/08 2008-08-07

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US20100035739A1 true US20100035739A1 (en) 2010-02-11

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US12/512,364 Abandoned US20100035739A1 (en) 2008-08-07 2009-07-30 Apparatus and method for manufacturing lids with tear-off foil
US13/571,460 Active US8641349B2 (en) 2008-08-07 2012-08-10 Apparatus and method for manufacturing lids with tear-off foil
US14/170,672 Active 2031-10-25 US9764374B2 (en) 2008-08-07 2014-02-03 Apparatus and method for manufacturing lids with tear-off foil

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US13/571,460 Active US8641349B2 (en) 2008-08-07 2012-08-10 Apparatus and method for manufacturing lids with tear-off foil
US14/170,672 Active 2031-10-25 US9764374B2 (en) 2008-08-07 2014-02-03 Apparatus and method for manufacturing lids with tear-off foil

Country Status (7)

Country Link
US (3) US20100035739A1 (de)
EP (2) EP2151286A3 (de)
AT (1) ATE499165T1 (de)
CH (1) CH699295A2 (de)
DE (1) DE502009000392D1 (de)
ES (1) ES2358477T3 (de)
PT (1) PT2151287E (de)

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US20070113985A1 (en) * 2003-05-13 2007-05-24 Elpatronic Ag Processing device and use thereof for the production of covers with a film which can be torn off
CN102770230A (zh) * 2010-03-19 2012-11-07 苏德罗尼克股份公司 用于制造密封盘的方法
USD784647S1 (en) * 2015-03-18 2017-04-18 Mars, Incorporated Bar
US10895516B2 (en) 2019-02-06 2021-01-19 Owens-Brockway Glass Container Inc. Seal integrity inspection
US11204297B2 (en) * 2019-06-07 2021-12-21 Alcon Inc. Method for determining whether a sealing area of a primary packaging container for an ophthalmic lens is unacceptable for properly sealing a foil thereto
CN114261729A (zh) * 2021-12-17 2022-04-01 安徽理工大学 一种物流仓储用的分拣码垛设备

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CH702938A1 (de) * 2010-04-13 2011-10-14 Soudronic Ag Anordnung zur Bildung einer Bandschlaufe und Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln.
ITBO20110154A1 (it) * 2011-03-25 2012-09-26 Giovanni Saporita Apparecchiatura per alimentare strisce metalliche ad una macchina di stampaggio
DE102011108919B4 (de) * 2011-07-29 2019-06-13 Multivac Sepp Haggenmüller Se & Co. Kg Mehrspurige Schalenverschließmaschine
DE202012104467U1 (de) * 2012-11-19 2013-05-28 Krones Ag Vorrichtung zum Fördern mindestens eines Formteils in einer Getränkeabfüllanlage
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CN105081128A (zh) * 2015-09-06 2015-11-25 浙江东来包装有限公司 一种易撕盖的加工设备及加工工艺
CN105344869A (zh) * 2015-11-30 2016-02-24 桐乡市凯瑞包装材料有限公司 一种罐底送料装置
CN108080497B (zh) * 2017-10-19 2019-05-28 杭州利富豪机电设备有限公司 内锅盖制作生产线及制作方法
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EP4284574A1 (de) * 2021-03-04 2023-12-06 Soudronic AG Vorrichtung zur herstellung von aufreissdeckeln
CN114084669B (zh) * 2021-11-24 2023-11-03 苏州朗坤自动化设备股份有限公司 一种手环生产线led模组组装机的背胶薄膜剥离装置

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US7975362B2 (en) * 2003-05-13 2011-07-12 Soundronic Ag Processing device and use thereof for the production of covers with a film which can be torn off
CN102770230A (zh) * 2010-03-19 2012-11-07 苏德罗尼克股份公司 用于制造密封盘的方法
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US11204297B2 (en) * 2019-06-07 2021-12-21 Alcon Inc. Method for determining whether a sealing area of a primary packaging container for an ophthalmic lens is unacceptable for properly sealing a foil thereto
CN114261729A (zh) * 2021-12-17 2022-04-01 安徽理工大学 一种物流仓储用的分拣码垛设备

Also Published As

Publication number Publication date
US8641349B2 (en) 2014-02-04
PT2151287E (pt) 2011-05-12
CH699295A2 (de) 2010-02-15
DE502009000392D1 (de) 2011-04-07
EP2151287A1 (de) 2010-02-10
EP2151286A3 (de) 2011-07-06
US20120308337A1 (en) 2012-12-06
ES2358477T3 (es) 2011-05-11
US9764374B2 (en) 2017-09-19
EP2151287B1 (de) 2011-02-23
EP2151286A2 (de) 2010-02-10
US20140147231A1 (en) 2014-05-29
ATE499165T1 (de) 2011-03-15

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