EP3137240A1 - Verfahren und vorrichtung zur herstellung von aufreissdeckeln sowie ein aufreissdeckel - Google Patents
Verfahren und vorrichtung zur herstellung von aufreissdeckeln sowie ein aufreissdeckelInfo
- Publication number
- EP3137240A1 EP3137240A1 EP15712037.9A EP15712037A EP3137240A1 EP 3137240 A1 EP3137240 A1 EP 3137240A1 EP 15712037 A EP15712037 A EP 15712037A EP 3137240 A1 EP3137240 A1 EP 3137240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- collar
- plastic
- tear
- spray nozzle
- lid
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000004033 plastic Substances 0.000 claims abstract description 54
- 229920003023 plastic Polymers 0.000 claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 59
- 239000007921 spray Substances 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
- B65D17/501—Flexible tape or foil-like material
- B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/10—Sealing or packing elements; Sealings formed by liquid or plastics material characterised by special adaptation to acid-proof vessels
-
- 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
- B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
-
- 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
- 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
- B21D51/46—Placing sealings or sealing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/001—Action for opening container
- B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
- B65D2517/5002—Details of flexible tape or foil-like material
- B65D2517/5008—Details of flexible tape or foil-like material with a sealing coat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
- B65D2517/504—Details of preformed openings
- B65D2517/5056—Details of preformed openings the edge of the preformed opening having a covering element or coating, e.g. to prevent cutting or for sealing purposes
Definitions
- the invention relates to a method for producing tear-open lids according to the preamble of claim 1. Furthermore, the invention relates to a device for producing tear-open lids according to the preamble of claim 11 and a tear-open lid according to claim 17.
- Tear-off covers are known, for example from DE-U 298 17 592 or DE-U 92 03 953.
- a known to the expert production of tear-open lids according to the prior art will be briefly explained.
- 1 shows a cover blank 1.
- a stack 12 is shown which contains a plurality of such blank blanks, which are individually stacked and processed along the transport path of different processing stations, wherein the lid blanks first lid rings are formed and then processed until the finished tear-open lid.
- the lid blanks are, for example, round panes of coated metal and thus protected against corrosion, in particular of coated tinplate. For example, they have a diameter of 11 cm.
- the conveyor 22, which promotes the lid blanks, the cover rings and the Aufreissdeckel in the manufacturing device 20 along the transport path in the direction of arrow A from one processing station to the next processing station is formed in particular by two parallel running toothed belt on which recordings for the lid blanks or Cover rings are provided, as known to those skilled in WO 2006/017953. Again, this will not be explained further here.
- the per ⁇ IO processing stations of the prior art which are known in the art and are illustrated here only schematically, the blank to be machined is according ⁇ wells lifted from the conveyor and processed by the processing station and returned to the conveyor ⁇ direction back. This is indicated in the processing ⁇ stations with up and down arrows.
- the drive of the processing stations is indicated in each case below the conveying means. This serves to raise and lower the blanks and cover rings and to carry out the respective processing steps.
- a sealing flange 7 remains at the cutting edge 31 is the Me ⁇ tallmaterial blank or the sheet metal of the lid ring 2 is no longer there, protected by the coating.
- a processing station 24 the edge of the removal opening is pulled up to a collar 4 and this collar is held in another processing station 25. rolls, so that a so-called retort curl 5 is formed.
- the shape of the curl or the retort curls can be different.
- the curl, which forms the edge of the removal opening ensures that the user of the can when removing the contents of the box is protected from the sharp-edged cutting edge.
- the peel-off foil is sealed to the 8 ⁇ gelflansch, which can be done in two stages with a Vorsie ⁇ gelstation 27 and a main sealing station 28th
- the sealing process is also known to the person skilled in the art and will not be explained further here. Further processing stations can follow, in which an embossing of the she ⁇ gel foil takes place, the tear-open tab is positioned and a leak test takes place. This is also known to the person skilled in the art and will not be explained further here.
- finished Aufreissdeckel 10 are issued whose removal opening 15 is spanned by a tear-8, which is sealed at the sealing flange 7.
- the edge of the removal opening 15 is formed by an upturned and outwardly bent-curl 5.
- the finished tear-open lid 10 can be fastened by means of its seam edge 6 to a can jacket (which is indicated in FIG. 5 only with a wall part 11) and thus closes the can. This takes place in the filling operation in which the can has been filled with a filling material.
- the filled can can be opened later by tearing the tear-open film away from the cover ring by means of its tear-open tab 18, whereby the removal opening 15 is open.
- Such Aufreissdeckel have proven themselves.
- the invention is based on the object to provide a method and a manufacturing device for tear-open, whereby a tear-open lid can be produced industrially in high cadence and at low cost, which has virtually no corrosion of the cut edge even with corrosive products.
- the plastic can be applied with low cost of materials and at high speed, which protects the cut edge safe from corrosion in the subsequent curl to form a retort curls.
- the band-shaped strip is applied with a uniform thickness and this in particular with a very small thickness, which is only 0.05 mm to 1.0 mm. It is particularly preferred if the band-shaped strip is applied with a thickness of about 0.1 mm.
- the uniform thickness results in the rolling a good sealing effect and can be material and Save time on application. Especially the preferred thickness range or the preferred approximate thickness of 0.1 mm gives a good sealing effect with low material usage and high order speed.
- the band-shaped strip is applied by spraying a liquid plastic on the cover ring, which can be worked quickly and with high uniformity.
- the plastic is preferably a plastic liquefied by melting and in particular a thermoplastic elastomer liquefied by melting. This gives the desired uniform and thin application.
- the height of the band may for example be ei ⁇ nen to several millimeters and is not critical, if it is ensured during the rolling that the curl comes into contact with the tape.
- the plastic is applied from a stationary during the application spray nozzle on the rotating cover ring.
- This variant is mechanically simple and easy to control for the desired accuracy. It would also be possible with a rotating cover ring.
- Spray nozzle and a stationary held cover ring to work.
- the desired uniform thickness can be achieved if the distance between the spray nozzle and the cover ring is kept constant during the spraying process.
- This is preferably carried out so that the cover ring is arranged horizontally ver ⁇ displaceable on its support and that is acted upon with at least one roller on the outside of the collar of the cover ring in order to keep the distance between the inside of the collar from the nozzle constant, because the precisely and permanently positioned rotatable roller defines the position of the collar relative to the spray nozzle.
- the distance of the spray nozzle continuously over a distance measurement and a displacement of the spray nozzle to the not exactly Centric rotating lid ring is adjusted, but the claimed mechanically simpler solution is preferred.
- the invention is further based on the object to provide a manufacturing device for tear-open, through which Aufreissdeckel in high cadence and are inexpensive to produce, which do not have the disadvantage mentioned.
- the device is further designed such that the applying station is adapted for applying a band-shaped plastic layer having a substantially uniform thickness, in particular ⁇ sondere a thickness in the range of 0.05 mm to 0.5 mm and in particular with a thickness of about 0.1 mm.
- ⁇ sondere a thickness in the range of 0.05 mm to 0.5 mm and in particular with a thickness of about 0.1 mm.
- the application station has a rotatably driven by a drive receptacle for a cover ring and a stationary during the application of the tape spray nozzle to the plastic on the spray nozzle, which comes to rest in the application station within a placed on the receptacle lid ring, if this has been lifted by the application station of the För ⁇ der adopted, applied in liquid form band-shaped on the rotating driven lid ring.
- the plastic is preferably liquefied by the application station is equipped with an extruder, a gefuses ⁇ th feed to a controllable valve and a heated valve, so that the spray nozzle through the valve for applying pressure to the molten plastic is supplied.
- the receptacle of the cover ring relative to its rotation ⁇ axis is displaced horizontally against the force of a spring and at least one roller is provided whose axis of rotation ver ⁇ runs parallel to the axis of rotation of the recording ⁇ wherein the roller is arranged at least partially coplanar for receiving and in the Area protrudes, which is taken with raised cover ring of this.
- the outside of the collar of a cover ring located on the recording can be acted upon by the roller when the cover ring is raised and because the Po ⁇ tion of the role is well defined, the hori ⁇ zontal position of the raised cover ring is well defined.
- the invention is based on the object to provide a tear-open lid, which does not have the disadvantages mentioned and is industrially high cost and quality ⁇ cost to produce.
- the thickness of the band-shaped seal between 0.05 mm and 0.5 mm and is in particular about 0.1 mm.
- the height of the seal can be 1 mm to 3 mm.
- FIGS. 1 to 5 vertical sectional views through a cover blank, a cover ring and a tear-open to explain processing steps in the formation of a tear-open lid according to the prior art;
- FIG. 6 shows a schematic side view of a device according to the prior art for the production of tear-open lids or for carrying out the steps according to FIGS. 1 to 5;
- Figure 7 is a vertical sectional view of a cover ring in the manufacture of a tear-open lid according to the invention.
- Figure 8 is an enlarged view of a portion of the cover ring of Figure 7;
- FIG. 9 shows the cover ring of FIG. 7 after the edge of the removal opening has been rolled up
- Figure 10 is an enlarged view of a portion of the cover ring of Figure 9;
- Figure 11 is a plan view of the lid ring of a tear-open according to the invention.
- Figure 12 is a schematic representation of the processing station for applying the seal
- Figure 13 is a schematic side view of an apparatus according to the invention for the production of tear-open lids with a sealed cut edge;
- Figures 14 to 17 the positioning of the cover ring in the processing station and the movement of the spray nozzle in a preferred embodiment; and Figures 18 to 21 in an enlarged view the positioning of the spray nozzle for the application of the plastic.
- Figures 7 and 8 show a cover ring, in which the processing step of pulling the edge of the removal opening to form the collar 4 has already taken place. This has been done in the processing station 24.
- this (or in a separate step) on the upper En ⁇ en 34 of the collar 4 is a curvature inwardly generated wor ⁇ which facilitates the subsequent roll-up to form the re- tort-curls.
- According to the invention further been 32 placed ⁇ introduced in a single step on the inside 40 of the collar 4, a plastic layer in the form of a tape. The application of this plastic layer is preferably carried out in a separate processing station 29, as shown in FIG.
- the band 32 of the plastic layer forms a seal for the cut edge 31 during curling, which will be shown below.
- the band 32 is made of a plastic, and preferably the band is made of a thermoplastic elastomer (TPE).
- TPE thermoplastic elastomer
- the band is, as shown, preferably formed uniformly thick over the entire height of the band. It is provided as a thin band, which preferably has a thickness d in the range of 0.05 millimeter to 0.2 millimeter, preferably a thickness of about 0.1 millimeter.
- the height H of the band may e.g. 1 to 3 mm.
- the application according to the invention is carried out by spraying molten, liquid plastic material, preferably the mentioned TPE, wherein a relative movement of nozzle and cover ring takes place.
- the cover ring is preferably moved in rotation in the processing station 29 (FIGS. 12 and 13) and the inner side 40 of the collar 4 is moved past the outlet opening of a spray nozzle which is arranged statically during application, from which the plastic emerges.
- the cover ring is thus lifted at the processing station 29, rotated and the application is activated when the cover ring has reached the correct position relative to the outlet opening.
- the lid ring with the belt 32 is moved back down to the conveyor, whereby the rotation is stopped, so that the lid ring back to the shots of the Conveyor can be discontinued. Then the promotion to the curling station 25.
- the plastic of the belt 32 cools when applied to the cover ring and solidifies, so that in the further promotion no flow of the plastic takes place and the band is stable in the form shown.
- a coolant for example in the form of a blower, can be provided in the application station or processing station 29.
- the cover ring can be rotated at high rotational speed when applying the thin plastic tape, which is understood to mean a rotation of more than 200 revolutions per minute.
- a preferred rotational speed is in the range of 400 to 600 per minute.
- the distance of the discharge opening or the spray nozzle to the inside 40 of the collar 4 when spraying the liquid plastic remains substantially constant, so that the thickness of the belt 32 is substantially constant and their small thickness is possible.
- This can e.g. take place by the cover ring 2 is exactly centered in the processing station 29 on a receptacle and the spray nozzle with the discharge opening relative to this receptacle has a defined distance.
- the band 32 is positioned on the inner side 40 of the collar 4, that it is closer to the plane of the sealing flange 7 than the
- Cutting edge 31 The positioning and dimensioning of the band is approximately such that the band 32, the lower third of the collar 4 to the lower half of the collar. 4 covered.
- a greater height H of the band is possible, but then increases the Materialauf and for the plastic used, without this being necessary for further processing or for the protection of the cutting edge.
- the height H will be approximately 1 mm to 3 mm in practice.
- the cover ring provided with the plastic strip according to FIGS. 7 and 8 is provided in the processing station 25 in a known manner with a retort curl 5.
- This station 25 works according to the state of the art with the known rolling-in tools, so that this need not be explained in detail here, since this is known to the person skilled in the art. A modification which will be apparent to those skilled in the art may be found in the tools when the collar 4 has already been pre-bent at its upper edge 34 for curling, which is preferred. It can be seen according to FIGS. 10 to 13, which show the cover ring after the turning station 26, and in particular with reference to FIG.
- the band 32 forms a seal which prevents the ingress of liquid prevents the inside of the retort curl.
- the bare cutting edge 31 is protected against the influence of a liquid in the can. It does not matter if the curl is such that the Thomaskan- te 31 is partially embedded in the belt 32 as Darge ⁇ represents or whether it rests only on tape 32nd Also, the Ge ⁇ contrary, that the cut edge 31 cuts the tape by ⁇ 32 and rests against the metal of the inner side 40, the function of the belt 32 does not interfere. Thus, usual manufacturing tolerances play no role in the formation of the retort curl 5.
- the plan view 12 shows the lid ring, as it is conveyed into the sealing station 27, in which the tear-open film is sealed over the removal opening.
- FIG. 13 shows the tear-open lid manufacturing apparatus 20 in which a processing station 29 for applying the band 32 to the lid ring is provided.
- the processing station 29 is orzugs- way according to Figure 12 and Figures 14 to 21 are formed.
- FIG. 12 shows a support 50, which is adapted to the cover rings 2 in diameter and in its shape.
- a cover ring 2 rests with its sealing flange 7 on the upper side of the support 50.
- the support 50 can be moved up and down in a known manner as in the other processing stations, so that the support in the drawing in the direction of the arrow C can be moved downward, whereby the support is lowered below the receptacles for the cover ring of the conveyor 22 whereby the cover ring is returned to the conveyor, so that it can be transported to the next processing station 25.
- next cover ring which is to be received in the processing station 29, received by the receptacle 50 and lifted off the conveyor when the receptacle 50 is moved in the direction of arrow B back up.
- this is known to the person skilled in the art in a similar way from the other processing stations, and the drive for raising and lowering the support 50 is shown only schematically as a box 58.
- This drive can be electric in a known manner
- the support 50 is resiliently displaceable in the horizontal direction in the direction of the arrow EF relative to the vertical center axis 55.
- a central conical holder 52 is provided which is fixed in the position of the central axis 55 (but rotatable about this, which will be explained later) and that elastic spring means, eg are provided in the form of a circulating plastic tube 54, which allow the support 50 to move horizontally in the direction of the double arrow EF by a few tenths of a millimeter to a millimeter or perpendicular to the central axis 55. slide. This can also move the cover ring by this amount in the direction of the double arrow.
- the spray nozzle 46 which sprays the plastic material to form the ribbon 32 against the inside 40 of the collar 4 of the lid ring 2, however, is, in its Ausbringposi ⁇ tion arranged fixed (but in this movable, as will be explained).
- the distance from the spray nozzle 46 to the inner side 40 is kept constant during application of the Kunststoffma ⁇ terials by a rotatable about a vertical rotation axis roll 45 is disposed adjacent to the support 50th
- the position of the axis of rotation 47 in the machining ⁇ processing station 29 is fixed and defined to the spray nozzle in the application position, whereby the plastic application is carried out with a defined thickness.
- the displacement drive 48 through which the
- Spray nozzle 46 is slidable in the direction of the double arrow E-F is shown as a box 48 and is e.g. electric or electromagnetic or pneumatic. This displacement of the spray nozzle will be shown in more detail with reference to FIGS. 14 to 21.
- the De ⁇ ckelring 2 is positioned by the spring means 54 concentric to the axis 55th
- the spray nozzle 46 has been positioned by its on ⁇ drive 48 to the axis 55 toward or in the direction E shifted, which can be seen in Figures 14 and 15 and 18 and 19. In this position, the spray nozzle can be immersed in the lid ring 2 at Anhe ⁇ ben in the direction of arrow B.
- the spray nozzle is for the lifting movement of such a cover ring in this back driven position no obstacle.
- the position of the roller 45 is precisely defined in the processing station 29 in the horizontal direction, the position of the collar 4, where it 45 kon ⁇ clocked the role, is well defined. Thanks to the spring means 54, the cover ring in a horizontal position can be adjusted so that it assumes the position of the roller 45.
- the roller 45 is rotatable but usually not driven by itself, as it takes over the rotation of the cover rings.
- the nozzle 46 is moved by its drive 48 in the direction F and assumes its fixed position order. Since the position of the roller 45 in the Bear ⁇ processing station is precisely given in their distance from the spray nozzle, the inner side 40 of the collar 4 with respect to the spray nozzle at a precise distance for the on ⁇ splash of the plastic material is positioned on the inside 40 when the spray nozzle 46 has reached its end position in the direction F, which is shown in Figures 16 and 20.
- the recess 49 in the spray nozzle 46 allows the approach of the spray nozzle 46 to the collar 4 despite its curvature at the end 34.
- the supply of the spray nozzle 46 with the liquid molten TPE plastic can be done in a way ⁇ known manner by the plastic is melted in an extruder 60 and extruded and, for example, by a heated hose 61 liquid and under pressure standing supplied to the processing station. This is only schematically indicated by lines, so that the specific embodiment of the entry of the line into the head containing the spray nozzle is not shown.
- a controllably disclosed and closable valve 62 which is preferably also heated, causes the beginning and end of splashing of the plastic.
- a control 63 can the described process of lifting the conveyor, the rotation of the support with the lid ⁇ ring around the axis 55 and the displacement of the spray nozzle 46 and the start of injection and the injection end and to ⁇ back moving the spray nozzle, stopping the rotation and controlling the lowering of the pad.
- This control can be provided in the processing station 29 is a controller or several or all processing status ⁇ ones and the conveyor 22 common control.
- FIGS. 14 to 17 show an example of the drive 48 of the spray nozzle 46 in more detail. This can be moved horizontally in a linear guide in the direction of E - F, which is effected via an eccentric drive.
- the positioning of the spray nozzle is to the inside of the collar 4 shown enlarged. Also, the channel for the plastic inside the spray nozzle 46 is shown with broken lines.
- the displacement of the support 50 and thus of the cover ring 2 in its contact with the outside of the roller 45 is indicated in Figure 19 with the arrows G.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20191527.9A EP3760333A1 (de) | 2014-04-29 | 2015-03-16 | Aufreissdeckel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00643/14A CH709571A1 (de) | 2014-04-29 | 2014-04-29 | Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln sowie ein Aufreissdeckel. |
PCT/CH2015/000042 WO2015164986A1 (de) | 2014-04-29 | 2015-03-16 | Verfahren und vorrichtung zur herstellung von aufreissdeckeln sowie ein aufreissdeckel |
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EP20191527.9A Division EP3760333A1 (de) | 2014-04-29 | 2015-03-16 | Aufreissdeckel |
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EP3137240A1 true EP3137240A1 (de) | 2017-03-08 |
EP3137240B1 EP3137240B1 (de) | 2020-09-02 |
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EP20191527.9A Withdrawn EP3760333A1 (de) | 2014-04-29 | 2015-03-16 | Aufreissdeckel |
EP15712037.9A Active EP3137240B1 (de) | 2014-04-29 | 2015-03-16 | Verfahren und vorrichtung zur herstellung von aufreissdeckeln |
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EP20191527.9A Withdrawn EP3760333A1 (de) | 2014-04-29 | 2015-03-16 | Aufreissdeckel |
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US (2) | US10494139B2 (de) |
EP (2) | EP3760333A1 (de) |
JP (1) | JP6680693B2 (de) |
CN (2) | CN106458397B (de) |
CH (1) | CH709571A1 (de) |
ES (1) | ES2823848T3 (de) |
PT (1) | PT3137240T (de) |
TW (1) | TWI647157B (de) |
WO (1) | WO2015164986A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH713744A2 (de) * | 2017-04-21 | 2018-10-31 | Soudronic Ag | Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln sowie ein Aufreissdeckel. |
FR3072660B1 (fr) | 2017-10-20 | 2019-11-22 | Ardagh Mp Group Netherlands B.V. | Couvercle pour boite de conserve metallique, comprenant un anneau metallique et membrane pelable thermoscellee |
CN109413562B (zh) * | 2018-12-29 | 2021-08-27 | 歌尔股份有限公司 | 前盖的加工方法、前盖和发声装置 |
CH716413A1 (de) * | 2019-07-18 | 2021-01-29 | Soudronic Ag | Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln sowie Aufreissdeckel. |
CH716493A1 (de) * | 2019-08-13 | 2021-02-15 | Soudronic Ag | Aufreissdeckel. |
DE102020128491A1 (de) * | 2020-10-29 | 2022-05-05 | Top Cap Holding Gmbh | Dosendeckel und Verfahren zum Herstellen eines Dosendeckels |
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US4010703A (en) * | 1975-12-17 | 1977-03-08 | The Continental Group, Inc. | End lining with hot melt |
US4026226A (en) * | 1976-03-01 | 1977-05-31 | American Can Company | Press apparatus and method utilizing same |
US3999495A (en) * | 1976-04-02 | 1976-12-28 | American Can Company | Can end transfer mechanism |
EP0007487B1 (de) * | 1978-07-10 | 1981-11-11 | Del Bon, Franco | Versiegelte Dose und vorgeformtes Verschlusselement dafür sowie Verfahren und Vorrichtungen zu deren Herstellung |
CH654542A5 (de) * | 1982-04-05 | 1986-02-28 | Sandherr Packungen Ag | Verschlussdeckel fuer sterilisierbare dosen. |
US4648528A (en) * | 1985-05-29 | 1987-03-10 | Aluminum Company Of America | Easy opening container end closure |
CN1066037A (zh) | 1991-04-22 | 1992-11-11 | 天龙化学工业株式会社 | 广口容器的盖装置 |
DE9203953U1 (de) | 1992-03-24 | 1992-07-23 | Alcan Rorschach Ag, Rorschach, Ch | |
US6301766B1 (en) | 1998-01-12 | 2001-10-16 | Tempress Technologies, Inc. | Method for metal working using high pressure fluid pulses |
DE29817592U1 (de) | 1998-10-02 | 1998-11-26 | Union Deutsche Lebensmittelwer | Dose |
DE10022553C1 (de) * | 2000-05-10 | 2001-07-05 | Rasselstein Hoesch Gmbh | Verfahren zum Herstellen eines Ringteils aus Blech für einen Dosendeckel |
DE60116386T2 (de) | 2001-03-29 | 2006-08-17 | Industrias Alimentarias de Navarra, S.A., Villafranca | Verschlussmittel für dosen, insbesondere konservendosen |
JP4375704B2 (ja) * | 2003-01-27 | 2009-12-02 | 大和製罐株式会社 | 金属缶の開口カール部製造方法 |
US7134824B2 (en) * | 2002-06-05 | 2006-11-14 | Industrias Peñalver S.L. | Curling-sealing compound lining machine for non-circular metal lids of containers |
US7055713B2 (en) * | 2002-11-12 | 2006-06-06 | Sonoco Development, Inc. | Easy-opening closure for retortable container |
ES2246634B1 (es) | 2003-04-08 | 2007-04-16 | Industrias Alimentarias De Navarra, S.A. | Cierre para latas. |
EP1559655A1 (de) * | 2004-01-29 | 2005-08-03 | Impress Group B.V. | Behälter und Verfahren zu seiner Herstellung |
ATE484348T1 (de) * | 2004-08-18 | 2010-10-15 | Soudronic Ag | Verfahren und vorrichtung zum fördern von zu bearbeitenden gegenständen |
WO2006097005A1 (de) * | 2005-03-17 | 2006-09-21 | Soudronic Ag | Aufreissdeckel und verfahren zu dessen herstellung |
EP1800770A1 (de) * | 2005-12-23 | 2007-06-27 | Crown Packaging Technology, Inc | Dosenkörper mit einer auf einem Flansch oder Stufe gelegten Dichtungsmasse und Verfahren zur Herstellung eines solchen Dosenkörpers |
JP5063959B2 (ja) | 2006-08-21 | 2012-10-31 | 東洋製罐株式会社 | 金属缶用ホットメルト組成物及びこれを用いて成る金属缶 |
CH701451A2 (de) * | 2009-07-09 | 2011-01-14 | Soudronic Ag | Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln. |
US8695832B2 (en) * | 2010-02-02 | 2014-04-15 | Klaus Thielen | Can lid and method for producing a can lid |
CH704695A1 (de) | 2011-03-25 | 2012-09-28 | Soudronic Ag | Vorrichtung und Verfahren zur Herstellung von Aufreissdeckeln. |
US8826850B2 (en) * | 2012-04-30 | 2014-09-09 | Stolle Machinery Company, Llc | Linear liner and associated method |
CN202967034U (zh) * | 2012-11-20 | 2013-06-05 | 东莞市精丽制罐有限公司 | 食品盒盒身盒底卷封结构 |
-
2014
- 2014-04-29 CH CH00643/14A patent/CH709571A1/de not_active Application Discontinuation
-
2015
- 2015-03-16 EP EP20191527.9A patent/EP3760333A1/de not_active Withdrawn
- 2015-03-16 CN CN201580022960.0A patent/CN106458397B/zh not_active Expired - Fee Related
- 2015-03-16 PT PT157120379T patent/PT3137240T/pt unknown
- 2015-03-16 ES ES15712037T patent/ES2823848T3/es active Active
- 2015-03-16 JP JP2016565140A patent/JP6680693B2/ja not_active Expired - Fee Related
- 2015-03-16 WO PCT/CH2015/000042 patent/WO2015164986A1/de active Application Filing
- 2015-03-16 CN CN201910153700.7A patent/CN109794563A/zh active Pending
- 2015-03-16 EP EP15712037.9A patent/EP3137240B1/de active Active
- 2015-03-16 US US15/304,904 patent/US10494139B2/en not_active Expired - Fee Related
- 2015-03-30 TW TW104110165A patent/TWI647157B/zh not_active IP Right Cessation
-
2019
- 2019-04-30 US US16/398,792 patent/US11142369B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP6680693B2 (ja) | 2020-04-15 |
TWI647157B (zh) | 2019-01-11 |
CN106458397A (zh) | 2017-02-22 |
TW201604095A (zh) | 2016-02-01 |
US10494139B2 (en) | 2019-12-03 |
EP3760333A1 (de) | 2021-01-06 |
US11142369B2 (en) | 2021-10-12 |
EP3137240B1 (de) | 2020-09-02 |
CH709571A1 (de) | 2015-10-30 |
PT3137240T (pt) | 2020-11-09 |
US20190256248A1 (en) | 2019-08-22 |
JP2017520402A (ja) | 2017-07-27 |
CN106458397B (zh) | 2019-03-08 |
US20170183121A1 (en) | 2017-06-29 |
ES2823848T3 (es) | 2021-05-10 |
WO2015164986A1 (de) | 2015-11-05 |
CN109794563A (zh) | 2019-05-24 |
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