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WO2001030561A1 - Procede et appareil de formation d'un bord roule superieur sur un contenant non circulaire - Google Patents

Procede et appareil de formation d'un bord roule superieur sur un contenant non circulaire Download PDF

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Publication number
WO2001030561A1
WO2001030561A1 PCT/US2000/029697 US0029697W WO0130561A1 WO 2001030561 A1 WO2001030561 A1 WO 2001030561A1 US 0029697 W US0029697 W US 0029697W WO 0130561 A1 WO0130561 A1 WO 0130561A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
clamps
curl
recited
clamp
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.)
Ceased
Application number
PCT/US2000/029697
Other languages
English (en)
Inventor
Wayne F. Schneider
David N. Netter
Timothy H. Sharp
Ronald D. Robertson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huhtamaki Consumer Packaging Inc
Original Assignee
Sealright Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sealright Co Inc filed Critical Sealright Co Inc
Priority to AU13502/01A priority Critical patent/AU1350201A/en
Publication of WO2001030561A1 publication Critical patent/WO2001030561A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/08—Creasing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0038—Rim-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/002—Construction of rigid or semi-rigid containers having contracted or rolled necks, having shoulders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/252—Surface scoring using presses or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings

Definitions

  • the present invention relates generally to paperboard containers and more particularly to a method and apparatus for applying a top curl to a non-round or round paperboard container.
  • Paperboard containers are used in a variety of packaging applications, including the packaging of foods such as ice cream.
  • a top curl is applied to the upper edge of the container to provide necessary strength and protection to the upper edge.
  • the top curl is advantageous for forming a seal when a cover is frictionally fit over the open end of the container.
  • the top curl is applied to these containers by forcing the container from the mandrel on which the container was formed into a single pocket sized to fit firmly around the container.
  • the pocket is typically positioned at the terminal end of a shaft that rotates about one of its ends.
  • the container remains in the pocket while the shaft rotates the container into proximity with a series of tools for forming the top curl. Each tool is located at a position along the path of rotation.
  • a still further object of the present invention is to provide a machine for applying a top curl to a container that has a plurality of clamping pockets that surround the container at each step in the curling process.
  • Another object of the present invention is to provide a machine for applying a top curl to a container that is cheaper and easier to retool than the prior art machines.
  • a further object of the invention is to allow use of multiple tooling profiles to form the top curl in each station of pockets.
  • Another object of the present invention is to provide a method for applying a top curl to a non-round or round container without damaging the container.
  • a still further object of the invention is to provide a method of manufacturing containers having a top curl that allows a greater time for each container to be curled while producing containers at a rapid rate.
  • a device for applying a top curl to a paperboard container having a rim.
  • the device includes a first clamp defining a first cavity and a second clamp defining a second cavity. At least one of the first and second clamps is moveable with respect to the other clamp between a first position wherein the clamps envelop the paperboard container within the space defined by the first and second cavities and a second position in which the first and second clamps are positioned at a distance from one another.
  • Fig. 1 is a top perspective view of a top curl machine constructed in accordance with the preferred embodiment
  • Fig. 2 is a top plan view of the top curl machine
  • Fig. 3 is a front elevational view of the top curl machine
  • Fig. 4 is a top perspective view of the top curl machine with the frame removed to better illustrate the components of the machine;
  • Fig. 5 is a bottom perspective view of the top curl machine of Fig. 4;
  • Fig. 6 is a side elevational view of the top curl machine of Fig. 4;
  • Fig. 7 is a front elevational view of the top curl machine of Fig. 4;
  • Fig. 8 is a top perspective view of the upper top curl frame assembly of the top curl machine of Fig. 1;
  • Fig. 9 is a top perspective view of the top curl machine of Fig. 1 with the frame removed and illustrating the clamps in the closed position;
  • Fig. 10 is a top perspective view of the top curl machine with the frame removed illustrating the clamps in the open position;
  • Fig. 11 is a top perspective view of the clamps and the transport of the present invention.
  • Fig. 12 is a top perspective view of the oscillator and linkage to the clamps of the present invention.
  • Fig. 13 is a top plan view of the oscillator and linkage of Fig. 12;
  • Fig. 14 is a top plan view of the tool plate illustrating the pre-curl tool in broken lines;
  • Fig. 15 is a sectional view of the pre-curl tool taken along line 15-15 of Fig. 14;
  • Fig. 16 is an enlarged sectional view of area designated by the numeral
  • FIG. 16 is a top plan view of the tool plate illustrating the mid-curl tool in broken lines; - 4 -
  • Fig. 18 is a sectional view of the mid-curl tool taken along line 18-18 of Fig. 17;
  • Fig. 19 is an enlarged sectional view of the area designated by numeral 19 in Fig. 18;
  • Fig. 20 is a sectional view of the mid-curl tool taken along line 20-20 of
  • Fig.21 is an enlarged sectional view of the area designated by the numeral 21 in Fig. 20;
  • Fig. 22 is a sectional view of the mid-curl tool taken along line 22-22 of Fig. 17;
  • Fig.23 is an enlarged sectional view of the area designated by the numeral 23 in Fig. 22;
  • Fig. 24 is a top plan view of the tool plate illustrating the final curl tool in broken lines;
  • Fig. 25 is a sectional view of the final curl tool taken along line 25-25 of
  • Fig. 26 is a sectional view of the final curl tool taken along line 26-26 of Fig. 25;
  • Fig.27 is an enlarged sectional view of the area designated by the numeral 27 of Fig. 26;
  • Fig. 28 is a sectional view of the final curl tool taken along line 28-28 of Fig. 25;
  • Fig.29 is an enlarged sectional view of the area designated by the numeral 29 in Fig. 28; and Fig. 30 is an enlarged sectional view of the top curl of the finished container.
  • Top curl machine 10 broadly includes a main assembly 12, an upper assembly 14 and a lower drive assembly 16. Main assembly 12 and upper assembly 14 are enclosed within - 5 - an upper frame 18. A conventional container loading assembly 19 extends from the main assembly outside of the upper frame. Lower drive assembly 16 is covered by a pair of cabinet doors 20 on either side of the machine.
  • the machine is supported at a plurality of ground contacts 22, each located at a corner of the machine. As shown in Figs. 1 and 3, the ground contacts 22 support a lower platform 24 at a short distance from the ground. At the four contacts 22, posts 26 extend upwardly to support a main deck 28.
  • the cabinet doors 20 are coupled with posts 26 at hinges 30 and may be opened by grasping handles 32 and pulling upwardly.
  • the upper frame 18 is supported by the main deck 28.
  • Upper frame 18 consists of a number of upstanding posts 34, each post located at a corner of the machine, and a pair of framed upper guard door members 35 supporting windows 36 therein. To open a guard door member 35, a handle 38 is grasped and pulled upwardly.
  • Figs. 4-7 show the top curl machine without the support structures, cabinet doors 20 and upper frame 18. Further, the container loading assemblies 19 shown in Figs. 1-3 are omitted since the assemblies are not part of the present invention and merely illustrate the integration of the top curl machine 10 and the container formation machine (not shown) typically used in conjunction with the top curling machine 10.
  • each of the drives of the present invention is powered either directly or indirectly from main drive shaft 44.
  • the main drive shaft is supported by a first bearing 46 and a second bearing 48 on a corresponding pair of upstanding legs 50 and 52 secured to the lower platform 24.
  • the end of main drive shaft 44 is held within an encoder 54 supported by a small leg 56 in contact with the machine base. Encoder 54 determines the rotational position of the shaft to actuate the pneumatic elements of the device at the appropriate moments as discussed further below.
  • main drive shaft 44 is powered by the drive shaft 45 of the container forming machine (not shown).
  • a belt 47 and idler pulley 49 serve to link the power takeoff (PTO) shaft 44 of machine 10 with drive shaft 45 of the forming machine.
  • PTO power takeoff
  • Main drive shaft 44 powers the components of the main assembly 12. Initially, the drive shaft 44 powers the pulley system 57 that drives the conventional container loading assemblies 19 omitted in Figs. 4-7. More importantly, the drive shaft 44 drives a transporter assembly 58 that places each container entering the machine in one of two lanes and an indexing drive chain assembly 60 that moves the containers through the machine in one of the two lanes.
  • the transporter assembly 58 includes an oscillator 70, a transporter 76 and a linkage 77.
  • a belt 64 driven from main drive shaft 44 is directed around an idler pulley 66 and is received around a pulley 68. Pulley 68 is coupled with the oscillator 60 of indexing drive assembly 60 by a shaft 72.
  • the pivoting arm 74 of the oscillator 70 is coupled with transporter 76 by a tie rod 75 and a linkage 77.
  • the linkage 77 extends upwardly through an opening 78 in the main deck 28.
  • Transporter 76 is block-like and slides within opening 78 to direct each container 80 to one of the two paths on the index drive assembly.
  • index drive chain assembly 60 comprises a pair of chains 82 and 83 , each chain having a plurality of container holding shells 84 attached to one side of each belt.
  • the shells 84 are preferably two piece plastic components that are shaped to hold the containers 80 as they are moved from one tool to the next.
  • a small ridge 85 on the other side of the containers cooperates with shells 84 to maintain the container along the index drive path.
  • chain 82 is secured by a free wheel 86 at one end and a driven wheel 88 at the other.
  • Chain 83 is secured by a free wheel 90 and a driven wheel 92.
  • a number of tensioning pulleys 91 are also located on the drive path as shown with respect to claim 82.
  • pulley 68 also drives index drive chain assembly 60.
  • Pulley 68 is coupled with an indexer box 94 secured to the underside of main deck 28.
  • Indexer box 94 translates the motion of wheel 68 to an output wheel 96 and causes the requisite delays during the top curl process as more fully described below.
  • Output wheel 96 is coupled to a pulley 99 at the first end of a shaft 100 by a belt 98.
  • a shaft 100 is secured to the main deck 28 by a pair of right angle gearboxes 104 mounted to the main deck by a pair of corresponding brackets 102.
  • Each gearbox 104 is coupled to the driven wheels 88 and 92 of the indexing drive assembly 60 by linkages 106 and 108 so that the wheels rotate in the direction indicated by the - 7 - arrows in Fig. 2.
  • the speed of the machine may be varied without upsetting the timing between the two assemblies.
  • an outlet conveyor 110 driven by an independent motor (not shown), is typically used to remove the containers from the machine.
  • Main drive shaft 44 also drives the upper assembly 14.
  • top curl machine 10 has four shafts 130 positioned in a rectangular arrangement that support upper assembly 14. Each shaft 130 is telescopically received within a first bearing 132 formed within main deck 28 and a second bearing 134 supported by lower platform 24. Upper assembly 14 is secured to shafts 130 at opposing brackets 136. Each opposing bracket 136 has a cap portion 138 corresponding to half of the shaft circumference 130. As shown in Fig. 6, an opposing cap 140 is placed on the other side of shaft 130 and is secured to the cap portion 138 by a plurality of bolts 142. Apair of plates 144 extend between the opposing brackets 136.
  • Pre-curl tools 146, mid- curl tools 148 and final curl tools 150 are mounted to respective heated tooling plates 152, 154, and 156 as shown in Fig. 6.
  • a heating coil (not shown) heats the device between 120° - 180°F and the heat is thermocoupled to the respective tool.
  • pneumatic means (not shown) supply air to each plate that is delivered through apertures in the tool as described below.
  • the upper assembly 14 must move vertically with respect to the main deck 28 and the containers held within the pockets (as described below) in order to form the top curl and provide clearance for the containers to move along the index drive between each step the top curl application process.
  • the shafts 130 are allow to move a distance of 1 3/8 inches with respect to bearings 132 and 134 and deck 28.
  • each crank shaft 158 is threaded within plate 159 secured to each bracket 136.
  • crank shaft 158 is rotated and the upper assembly 14 is moved relative to the shafts 130 as the assembly 14 moves relative to the crank shaft 158.
  • the tool curl may be apply to containers of varying heights. - 8 -
  • the movement of the upper assembly 14 is controlled by a pair of cam followers 172 and 174 extending from a second pair of opposing brackets 176 fixably secured to shafts 130 between first bearing 132 and second bearing 134.
  • the weight of the upper assembly 14 is supported by compression springs 178 on shafts 130 applying force to opposing brackets 176.
  • the cam followers 172 and 174 are received within cam wheels 180 and 182, respectively, at cam channels 183.
  • Cam wheels 180 and 182 are directly connected to the main drive shaft 44 and rotate about the same axis.
  • the cam follower 172 or 174 follows within the channel, with reference to Figs. 9 and 10, the distance between the center of the wheel and the cam follower dictates the height of the upper assembly.
  • Main drive shaft 44 drives the opening and closing of the pockets of the present invention.
  • the first set of pocket assemblies 184 has a left clamp 186 and a right clamp 188.
  • the second set of pocket assemblies 190 has a left clamp 192 and a right clamp 194.
  • the pockets are sized and shaped to hold either side of a non-round or round container and, except for the upper extremity of container 80, substantially envelops the container therein.
  • First pockets 196 are located directly under the pre-curl tools 146 of upper assembly 14.
  • second pockets 198 are located under the mid-curl tools 148 and third pockets 200 are located directly under final-curl tools 150.
  • the pockets are preferably formed from aluminum.
  • the pocket assemblies 184 further include right uprights 202 and 204 coupled with right clamps 188 and 192, respectively.
  • left uprights 206 and 208 are secured to left clamps 186 and 192 respectively.
  • the uprights are secured to the clamps by bolts (not shown) or by other frictional means.
  • Each pair of uprights 202, 204, 206 and 208 are coupled to one another by plates 210, 212, 214 and 216, respectively.
  • Each plate has a pair of bearing blocks 218 that receive one of two parallel rails 220 so that each of the plates may slide on the rails in relation to one another.
  • Rails 220 are supported by end plates 222 and 224 that are rigidly secured to the main deck 28. As best shown in Fig. 13, the left uprights 206 and 208 are tied to one another by a bar 226 extending between the respective plates 214 and 216. Similarly, the right uprights 202 and 204 are tied to one another by a bar 228 secured to plate 210 and plate 212. Therefore, as one of the left or - 9 - right pairs of uprights are translated on rails 220, the other set of corresponding uprights move simultaneously.
  • the uprights and pockets attached thereto are driven by an oscillator 230.
  • the oscillator has an aluminum arm drive 232 that pivots around its center 234. At one end of arm 232, a rod 236 is coupled to the arm 232. The rod 236 is attached to the underside of bar 226 at a shoulder bo It 238. Similarly, arm 232 is tied to bar 228 by a rod 240 coupled to a shoulder bolt 242. Therefore, when oscillator 230 is in its first position as shown in Figs. 12 and 13, the uprights and pockets attached thereto are in the open position and containers may be moved from one pocket to the next. When the oscillator arm 232 is pivoted to the second position, the corresponding left and right uprights are pulled toward one another and the pockets 196, 198 and 200 are closed about the containers.
  • the oscillator 230 is supported by a base 244 secured to the lower platform 24.
  • the oscillator is driven at an input shaft 246.
  • a pulley 247 is secured to input shaft 246.
  • a belt 248 extends around wheel 247 over an idler pulley 250 and about a wheel 252 rotating about main shaft 44.
  • the pre-curl tool 146, mid-curl tool 148 and final curl tool 150 are shown in the position above containers 80. Notably, the space between the tools and the container is significantly less than appears in Fig. 6.
  • the upper assembly typically has a vertical displacement range of 1 3/8 inches.
  • the pre-curl tool 146 has a cross-sectional shape roughly corresponding to the interior of the container at its top edge.
  • the tool has a first surface 254 having a generally semi-circular shape. The angular surface 254 contacts the upper edge 256 of container 80 along the long axis of the contact to form a slight bend.
  • the mid-curl tool 148 is shown generally in broken lines.
  • the tool has an angular surface 260 and a generally semi-circular curved portion 262.
  • the shape is generally similar at the radial section of the tool shown in Figs. 17 and 19, at the section of the tool along the long axis shown in Figs. 20 and 21, and the section viewed along the short axis of the tool as shown in Figs. 22 and 23.
  • the mid-curl plate 263, also shown in Fig. 9, is essentially square at the edge. Air is provided through apertures 265 in the tool 148.
  • the final curl tool 150 is shown. As shown in Figs. 25-29, the tool has a first surface 264, a second relatively steep surface 266, a curved portion 268 and an angular surface 270.
  • the final curl plate 271 as shown in Fig. 9, has a generally mating curved portion 272 around its periphery that applies the final curl to the upper edge 256 of the container. At this point, as shown in Fig. 30, the upper edge is curled completely under itself and edge 256 contacts container sidewall 274. The shape of the top curl is dictated largely by the curvature of the final curl plate 271 covering the final curl pocket.
  • a container 80 without a top curl is delivered to the transport assembly 58.
  • the transporter 76 directs the container to either of the two chains 82 or 83 of the index drive assembly 60.
  • the index drive assembly is paused by indexing drive chain assembly 60 and the edge of the container is lubricated.
  • the encoder 54 indicates to the injectors of the lubricator when to deliver the lubrication.
  • the lubricator is pulled upwardly, and the container is moved by the index drive assembly to a position under pre-curl tool 146.
  • the oscillator 230 is in the first position and the opposing left and right clamps 186 and 188 and opposing left and right clamps 192 and 194 are in the open position.
  • arm 232 of oscillator 230 is rotated and pockets 196 are closed around the container 80.
  • the pre-curl tool 146 is moved downwardly with respect to the container and the tool applies the pre-curl as described above.
  • oscillator 230 pivots to open pockets 196, upper assembly 14 is cammed upwardly and the index drive moves the container to a position under mid-curl tool 148. - 11 -
  • pocket 198 closes around the container, upper assembly 14 is again lowered, and the mid-curl is applied as described above.
  • the pockets open once again and the container moves to a position directly below final curl tool 150. Again, the pockets are closed, upper assembly 14 is lowered, and the final curl is applied to the container 80. Finally, the upper assembly 14 raises again, the pockets open and the container is directed by the index drive to the outlet conveyor 110 and the finished containers are moved to the end of the machine.
  • the drive system of the present invention illustrates one of a number of systems that may be utilized to drive a system having releasable clamps and tooling surfaces on each progressive pocket.
  • the present invention overcomes the problems associated with using a single pocket by grasping the container with clamping pockets during each tooling process.
  • pressure is applied generally perpendicularly to the surface of the container walls, and the walls are not scratched or marred as they enter the pockets.
  • the pockets open to allow the containers to move to the next stage, pressure which does not increase between the container walls and the pocket.
  • the pockets tend to tolerate more variation in the shape of the container than the prior art.
  • the tooling involved in the present machine is significantly less expensive than the prior art and the machine may be adapted to apply a top curl between containers of different sizes and shapes.
  • each successive pocket defined by the opposing clamps has separate tooling so that the curling process may be controlled.
  • the progressive processing of the top curl between complementary tool heads and pockets lead to a curl quality previously unattainable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention se rapporte à un dispositif de formation d'un bord roulé supérieur sur un contenant en carton présentant un rebord. Ledit dispositif comporte un premier dispositif de blocage (184) définissant une première cavité, et un second dispositif de blocage (186) définissant une seconde cavité. L'un au moins de ces deux dispositifs de blocage est mobile par rapport à l'autre et peut se déplacer entre une première position dans laquelle lesdits dispositifs de blocage enferment le contenant au sein des première et seconde cavités et une seconde position dans laquelle les premier et second dispositifs de blocage sont espacés l'un de l'autre.
PCT/US2000/029697 1999-10-27 2000-10-27 Procede et appareil de formation d'un bord roule superieur sur un contenant non circulaire Ceased WO2001030561A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13502/01A AU1350201A (en) 1999-10-27 2000-10-27 Method and apparatus for applying a top curl to non-round containers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16200799P 1999-10-27 1999-10-27
US60/162,007 1999-10-27

Publications (1)

Publication Number Publication Date
WO2001030561A1 true WO2001030561A1 (fr) 2001-05-03

Family

ID=22583772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/029697 Ceased WO2001030561A1 (fr) 1999-10-27 2000-10-27 Procede et appareil de formation d'un bord roule superieur sur un contenant non circulaire

Country Status (2)

Country Link
AU (1) AU1350201A (fr)
WO (1) WO2001030561A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268342A (en) * 1979-07-06 1981-05-19 Phillips Petroleum Company Apparatus for assembling closures and control systems therefor
US4947622A (en) * 1989-05-19 1990-08-14 Packaging Systems International, Inc. Apparatus and method for placing expansible lids on containers
US5026338A (en) * 1989-04-14 1991-06-25 Owens-Illinois Plastic Products Inc. Method for forming a rolled rim in a fabricated thermoplastic container
US5029749A (en) * 1990-09-14 1991-07-09 James River Corporation Paper container and method of making the same
US5054265A (en) * 1984-05-14 1991-10-08 Cmb Foodcan Plc Method of aseptic packaging and closing containers
US5449337A (en) * 1992-08-28 1995-09-12 Paper Machinery Corporation Cup making machine
US5658228A (en) * 1992-04-30 1997-08-19 Sweetheart Cup Company, Inc. Tamper evident container and related apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268342A (en) * 1979-07-06 1981-05-19 Phillips Petroleum Company Apparatus for assembling closures and control systems therefor
US5054265A (en) * 1984-05-14 1991-10-08 Cmb Foodcan Plc Method of aseptic packaging and closing containers
US5026338A (en) * 1989-04-14 1991-06-25 Owens-Illinois Plastic Products Inc. Method for forming a rolled rim in a fabricated thermoplastic container
US4947622A (en) * 1989-05-19 1990-08-14 Packaging Systems International, Inc. Apparatus and method for placing expansible lids on containers
US5029749A (en) * 1990-09-14 1991-07-09 James River Corporation Paper container and method of making the same
US5658228A (en) * 1992-04-30 1997-08-19 Sweetheart Cup Company, Inc. Tamper evident container and related apparatus
US5449337A (en) * 1992-08-28 1995-09-12 Paper Machinery Corporation Cup making machine

Also Published As

Publication number Publication date
AU1350201A (en) 2001-05-08

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