WO1994010038B1 - Form-fill-seal packaging apparatus - Google Patents
Form-fill-seal packaging apparatusInfo
- Publication number
- WO1994010038B1 WO1994010038B1 PCT/US1993/010373 US9310373W WO9410038B1 WO 1994010038 B1 WO1994010038 B1 WO 1994010038B1 US 9310373 W US9310373 W US 9310373W WO 9410038 B1 WO9410038 B1 WO 9410038B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- web
- tubing
- moving
- sealing
- jaws
- 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
Links
Abstract
A vertical form-fill-seal packaging machine (1) controlled by a controller (500) for receiving input data defining the package length, cycle time and sealing time and for controlling the feed of the packaging material (W) as a function of the input data, the machine having a measuring roll (19) for feeding the material forward in package length increment which is also operable to maintain the material tracking properly, further having a control (M1) maintaining the material under substantially constant tension, rapid controllable sealing jaw (5) operation, a readily retractable longitudinal seam sealer (15), and a stripper (401) operable independently of the sealing jaws.
Claims
AMENDED CLAIMS
[received by the International Bureau on 31 May 1994 (31.05.94); original claims 1, 13, 15-17, 19, 22, 23, 32, 34, 43, 44 and 47 amended; new claims 50-54 added;
remaining claims unchanged (17 pages)]
1. An intermittently operating form, fill and seal machine for making packages of predetermined package length from a web of material having a sealing time, the machine being cyclicly operable and comprising:
means for forming the web into tubing;
means for moving the web over the web forming means during a web moving time;
jaws for forming transverse seals across for the tubing during the sealing time;
means for moving the jaws relative to one another to open and close the jaws;
means for independently defining each of the following: the package length, a cycle time and the
sealing time; and
a controller, receiving the package length, the cycle time and the sealing time as defined by the
defining means, for determining the rate at which the web is moved over the forming means by the web moving means as a function of the package length and the difference between the cycle time and the sealing time, said web
moving means being responsive to the determined rate.
2. The machine of claim 1 wherein the
controller includes means for simultaneously operating the jaw moving means and the web moving means for at
least a portion of each cycle time so that the web moving means and jaw moving means operate in overlapping time periods within each cycle time.
3. The machine of claim 1 wherein the
controller receives input data defining a closing time during which the jaw moving means closes the jaws, wherein
includes means for varying the actual cycle time in response to the received product feed signal whereby at least some consecutive cycle times vary.
13. An intermittently operating form, fill and seal machine for making packages from a web of material, the machine comprising:
means for forming the web into tubing; means for moving the web over the web forming means;
jaws for sealing the tubing;
means for moving the jaws relative to one another to open and close the jaws; and
a controller for receiving input data defining the package length, cycle time and sealing time and for controlling the operation of the web moving means as a function of the input data, whereby the web is moved one package length within the time remaining in each cycle time taking into account the sealing time, further having a web measuring roll; means for driving the web measuring roll intermittently to feed a package length increment of the web forward toward the forming means, means mounting the measuring roll for movement relative to said forming means to steer the web to maintain it in a path aligned with the forming means, means for sensing deviation of the web one way or the other from said path, and means responsive to said sensing means on its sensing a
deviation to move the measuring roll to steer the web back into said path.
14. A machine as set forth in claim 1 comprising a frame, a downwardly extending tubular mandrel carried by the frame for delivery of product to be packaged therethrough and out of the lower end of the mandrel, said means for forming the web acting to form it
into the tubing surrounding the mandrel, variable speed means for feeding the tubing downwardly on the mandrel and thereby pulling the web over the forming means under tension, means for sensing the tension in the web upstream from said forming means, and means responsive to said sensing means for varying the speed of said variable speed means for maintaining the tension in the web at a substantially constant predetermined value.
15. A machine as set forth in claim 1 having first and second sealing jaws, the first jaw being movable toward and away from the second between an open position clear of the tubing and a closed position in sealing engagement with the tubing, the means for having the jaws comprising means for moving the first jaw toward the
second jaw relatively rapidly to a nearly closed
position, said first jaw moving means having expansible means therein for completing the movement of said first jaw from said nearly closed position to said closed position and exerting pressure on the tubing for sealing it, and means for operating said expansible means for completing the movement of said first jaw from said nearly closed position to said closed position and exerting pressure on the tubing for sealing it.
16. An intermittently operating form, fill and seal machine for making packages from a web of material, the machine comprising:
means for forming the web into tubing; means for moving the web over the web forming means;
jaws for sealing the tubing;
means for moving the jaws relative to one another to open and close the jaws; and
a controller for receiving input data defining the package length, cycle time and sealing time and for controlling the operation of the web moving means as a function of the input data, whereby the web is moved one package length within the time remaining in each cycle time taking into account the sealing time, said machine comprising a frame, a downwardly extending tubular mandrel carried by the frame for delivery of product to be package therethrough and out of the lower end of the mandrel, said means for forming the web acting to form it into the tubing surrounding the mandrel with the edges of the web lapping, the tubing being fed downwardly on the mandrel in package length increments with a dwell between successive web feed cycles, and means for sealing together the lapping margins of the web comprising an arm pivoted for swinging movement on a vertical axis on the
frame of the apparatus at one side of the mandrel, a platen housing horizontally slidable on the arm for movement lengthwise of the arm, said arm with the housing therein being swingable on said axis between an operative position wherein said housing is in front of the mandrel and a retracted position wherein the housing is off to one side from in front of the mandrel, a sealing platen carried by the housing, means in the housing for moving the platen from a retracted position relative to the mandrel into sealing position engaging the lapping margins of the web on the mandrel for sealing said margins together during a dwell of the tubing between web feed cycles.
17. An intermittently operating form, fill and seal machine for making packages from a web of material, the machine comprising:
means for forming the web into tubing; means for moving the web over the web forming means;
jaws for sealing the tubing;
means for moving the jaws relative to one another to open and close the jaws; and
a controller for receiving input data defining the package length, cycle time and sealing time and for controlling the operation of the web moving means as a function of the input data, whereby the web is moved one package length within the time remaining in each cycle time taking into account the sealing time, and wherein the means for forming the web into tubing acts to form it with the tubing extending downwardly, and the tubing is fed downwardly, said jaws being operable in a generally horizontal fixed plane, the tubing being intermittently fed downwardly between the jaws one package length increment when the sealing members are open, the jaws then
closing on the tubing; said machine further having a pair of stripper members operated independently of the jaws movable relative to one another from an open position with respect to the tubing to a closed position squeezing the tubing, and movable while in their open position from a lowered position below the jaws generally vertically upward between the opened jaws to a raised position above the jaws, then movable generally horizontally to their closed position and down in their closed position to their lowered position for stripping product from within the region of the tubing to be sealed.
18. A machine as set forth in claim 1 having a downwardly extending tubular mandrel and wherein the means for forming the web into tubing forms it into the tubing surrounding the mandrel, and having web measuring means operable intermittently to pull the web from a supply and measure successive package length increments of the web as it is pulled from the supply to establish the package length and intermittently feed the web forward in said package length increments on successive web feed cycles to said forming means, said means for moving the web over the forming means comprising means for intermittently pulling the tubing down on the mandrel during each web feed cycle at the same time that each package length increment is intermittently fed forward to the forming means, the jaws being opened for the downward feed of the tubing on each web feed cycle and closed on the tubing below the lower end of the mandrel on a dwell of the tubing between successive web feed cycles, and wherein the controller controls the web measuring means to measure out package length according to the input data.
19. A machine as set forth in claim 18 wherein the web measuring means comprises a measuring roll, and wherein the machine has means mounting the measuring roll for movement relative to said forming means to steer the web to maintain it in a
path aligned with the forming means, means for sensing deviation of the web one way or the other from said path, and means responsive to said sensing means on its sensing a deviation to move the measuring roll to steer the web back into said path.
20. A machine as set forth in claim 18 having variable speed means for feeding the tubing downwardly on the mandrel and thereby pulling the web over the forming means under tension, means for sensing the tension in the web upstream from said forming means, and means
responsive to said sensing means for varying the speed of said variable speed means for maintaining the tension in the web at a substantially constant predetermined value.
21. A machine as set forth in claim 18
comprising first and second sealing jaws, the first jaw being movable toward and away from the second between an open position clear of the tubing and a closed position in sealing engagement with the tubing, the means for moving the jaws comprising means for moving the first jaw toward the second jaw relatively rapidly to a nearly closed position, and means for completing the movement of said first jaw from said nearly closed position to said closed position and then exerting pressure on the tubing for sealing it.
22. An intermittently operating form, fill and seal machine for making packages from a web of material, the machine comprising:
means for forming the web into tubing; means for moving the web over the web forming means;
jaws for sealing the tubing;
means for moving the jaws relative to one another to open and close the jaws; and
a controller for receiving input data defining
the package length, cycle time and sealing time and for controlling the operation of the web moving means as a function of the input data, whereby the web is moved one package length within the time remaining in each cycle time taking into account the sealing time,
said machine having a downwardly extending tubular mandrel and wherein the means for forming the web into tubing forms it into the tubing surrounding the mandrel, and having web measuring means operable
intermittently to pull the web from a supply and measure successive package length increments of the web as it is pulled from the supply to establish the package length and intermittently feed the web forward in said package length increments on successive web feed cycles to said forming means, said means for moving the web over the forming means comprising means for intermittently pulling the tubing down on the mandrel during each web feed cycle at the same time that each package length increment is intermittently fed forward to the forming means, the jaws being opened for the downward feed of the tubing on each web feed cycle and closed on the tubing below the lower end of the mandrel on a dwell of the tubing between successive web feed cycles, and wherein the controller controls the web measuring means to measure out package length according to the input data,
said machine having means for sealing together lapping margins of the web comprising an arm pivoted for swinging movement on a vertical axis at one side of the mandrel, a platen housing horizontally slidable on the arm for movement lengthwise of the arm, said arm with the housing therein being swingable on said axis between an operative position wherein said housing is in front of the mandrel and a retracted position wherein the housing is off to one side from in front of the mandrel, a sealing platen carried by the housing, means in the housing for moving the platen from a retracted position relative to the mandrel into sealing position engaging
the lapping margins of the web on the mandrel for sealing said margins together during a dwell of the tubing between web feed cycles.
23. An intermittently operating form, fill and seal machine for making packages from a web of material, the machine comprising:
means for forming the web into tubing; means for moving the web over the web forming means;
jaws for sealing the tubing;
means for moving the jaws relative to one another to open and close the jaws; and
a controller for receiving input data defining the package length, cycle time and sealing time and for controlling the operation of the web moving means as a function of the input data, whereby the web is moved one package length within the time remaining in each cycle time taking into account the sealing time,
said machine having a downwardly extending tubular mandrel and wherein the means for forming the web into tubing forms it into the tubing surrounding the mandrel, and having web measuring means operable
intermittently to pull the web from a supply and measure successive package length increments of the web as it is pulled from the supply to establish the package length and intermittently feed the web forward in said package length increments on successive web feed cycles to said forming means, said means for moving the web over the forming means comprising means for intermittently pulling the tubing down on the mandrel during each web feed cycle at the same time that each package length increment is intermittently fed forward to the forming means, the jaws being opened for the downward feed of the tubing on each web feed cycle and closed on the tubing below the lower end of the mandrel on a dwell of the tubing between successive web feed cycles, and wherein the controller
controls the web measuring means to measure out package length according to the input data,
said machine having a pair of stripper members operated independently of the jaws movable relative to one another from an open position with respect to the tubing to a closed position squeezing the tubing, and movable while in their open position from a lowered position below the jaws generally vertically upward between the opened jaws to a raised position above the jaws, then movable generally horizontally to their closed position and down in their closed position to their lowered position for stripping product from within the region of the tubing to be sealed.
24. Apparatus for measuring, feeding and guiding a web being fed forward from a supply to a forming means in a vertical form-fill-seal packaging machine, said apparatus comprising a measuring roll, means mounting the measuring roll for movement relative to said forming means to steer the web to maintain it in a path aligned with the forming means, means for driving the measuring roll intermittently to feed forward a package length increment of the web, means for sensing deviation of the web one way or the other from said path, and means responsive to said sensing means on its sensing a deviation to move the measuring roll to steer the web back into said path.
25. Apparatus as set forth in claim 24 wherein the means for driving the measuring roll is carried by the measuring roll mounting means and movable therewith.
30. Apparatus as set forth in claim 29 wherein said sensing means comprises a roll over which the web is guided on its way to said forming means, and transducer means supporting said roll for sensing the tension of the web and operable to transmit an electrical signal proportional to the tension for varying the speed of said variable speed means relative to the speed of the
measuring roll for maintaining the tension in the web at a substantially constant predetermined value.
31. Apparatus as set forth in claim 30 wherein said variable speed means comprises a pair of belts for feeding the tubing downwardly on the mandrel, and
programmable drive means for driving the belts, said electrical signal varying the speed of the programmable drive means to vary the speed of the belts for
maintaining the tension in the web at a substantially constant predetermined value.
32. Sealing jaw apparatus for forming seals at package length intervals across tubing of packaging material in a vertical form-fill-seal packaging machine, comprising first and second sealing jaws, the first jaw being movable toward and away from the second between an open position clear of the tubing and a closed position in sealing engagement with the tubing, and a drive for said first jaw comprising means for moving the first jaw toward the second jaw relatively rapidly to a nearly closed position, said first jaw moving means having expansible means therein for completing the movement of said first jaw from said nearly closed position to said closed position and exerting pressure on the tubing for sealing it, and means for operating said expansible means for completing the movement of said first jaw from said nearly closed position to said closed position exerting pressure on the tubing for sealing it.
33. Sealing jaw apparatus as set forth in claim 32 wherein said first means comprises an electric-motor-driven crank mechanism, and said second
means comprises expansible chamber means operable when the first means has driven said first jaw to its said nearly closed position, to complete the closing of first jaw.
34. Sealing jaw apparatus for forming seals at package length intervals across tubing of packaging material in a vertical form-fill-seal packaging machine, comprising first and second sealing jaws, the first jaw being movable toward and away from the second between an open position clear of the tubing and a closed position in sealing engagement with the tubing, and a drive for said first jaw comprising means for moving the first jaw toward the second jaw relatively rapidly to a nearly closed position, said first jaw moving means having expansible means therein for completing the movement of said first jaw from said nearly closed position to said closed position and exerting pressure on the tubing for sealing it, and means for operating said expansible means for completing the movement of said first jaw from said nearly closed position to said closed position exerting pressure on the tubing for sealing it,
wherein said first means comprises an electric- motor-driven crank mechanism, and said second means comprises expansible chamber means operable when the first means has driven said first jaw to its said nearly closed position, to complete the closing of first jaw, and wherein the crank mechanism, when actuated to drive the first jaw to its said nearly closed
position, is at dead center and thereby held against return movement to take the reaction of the expansible chamber means as the expansible chamber means completes the movement of the first jaw from said nearly closed position to said closed position.
35. Sealing jaw apparatus as set forth in claim 34 having means mounting the first jaw for
horizontal sliding movement between its said open and closed positions, and wherein the expansible chamber means comprises at least one air cylinder having a piston reciprocable therein, one of the cylinder and the piston being connected to and movable with the first jaw, the crank mechanism comprising a crank means, an electric motor for driving the crank means and link means
interconnecting the crank means and the other of the cylinder and piston, the crank means being rotatable in one direction from a jaws-open position to a
jaws-nearly-closed position, the connection of the link means to the said one of said cylinder and piston and the connection between the link means and the crank means and the axis of the crank means being aligned in the dead center position when the crank means rotates to the jaws-nearly-closed position.
36. Sealing jaw apparatus as set forth in claim 35 wherein the second jaw is movable by said crank means toward and away from said first jaw.
the stripper members are movable between their open and closed positions by expansible chamber means
carried by the carriage.
43. Apparatus as set forth in claim 42 having endless belt and pulley means carried by the carriage for moving the stripper members between their open and closed positions.
44. Apparatus as set forth in claim 43 having expansible chamber means for moving the carriage up and down.
45. Apparatus as set forth in claim 40 wherein the stripper members are carried by a carriage movable up and down by cam means driven by expansible chamber means.
46. Apparatus as set forth in claim 45 wherein the cam means is a linear cam means reciprocable on a fixed track extending transversely with respect to the carriage.
47. An intermittently operating form, fill, and seal machine for making packages from a web of material, a machine for use with a product feed means for weighing a predetermined amount of product to be
delivered to the machine and packaged within the package, said product feed means providing successive product feed signals, each indicating that a preset amount of product is available, the machine comprising:
means for forming the web into tubing; means for moving the web over the web forming means;
jaws for sealing the tubing;
means for moving the jaws to open and close the jaws; and
a controller, receiving the product feed signals, for controlling the operation of the web moving
means as a function of the period between the successive product feed signals and for varying the actual cycle time in response to the period between the received product feed signals whereby at least some consecutive cycle times vary.
48. The machine of claim 9 wherein the web of material includes registration marks and wherein the machine further comprises means for detecting the
registration marks within a preset window and wherein the means for controlling the operation of the web moving means includes means for determining the deceleration as a function of the position of the registration mark relative to the window.
49. The machine of claim 48 wherein the determining means comprises means for determining a constant deceleration.
50. The machine, of claim 1 wherein the controller controls the acceleration and deceleration of the web as it moves over the forming means as a function of the package length and the difference between the cycle time and the sealing time.
51. The machine of claim 1 wherein the controller accelerates and decelerates the web to move one package length over the web forming means as a function of a period defined by the difference between the cycle time and the sealing time.
52. The machine of claim 1 wherein the controller controls the web moving means to move one package length of the web over the web forming means during a period of time set by the controller as a function of the difference between the cycle time and the sealing time.
53. An intermittently operating machine for making packages from a web of material of pieces of the web of predetermined package length, the machine
comprising:
means for forming the web;
means for moving the web over the web forming means during a web moving time; and
a controller for determining the rate at which the web is moved over the forming means by the web moving means as a function of the package length and the web moving time, said web moving means being responsive to the determined rate.
54. In an intermittently operating machine for making packages from a web of material of pieces of the web of predetermined package length, the machine having means for forming the web and means for moving the web over the web forming means during a web moving time, a controller for controlling the web moving means
comprising:
means for determining the rate at which the web is moved over the forming means by the web moving means as a function of the package length and the web moving time; and
means for controlling the web moving means in response to the determined rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93925110A EP0618869A4 (en) | 1992-10-30 | 1993-10-25 | Form-fill-seal packaging apparatus. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/969,342 | 1992-10-30 | ||
| US07/969,342 US5377474A (en) | 1992-10-30 | 1992-10-30 | Form-fill-seal packaging apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994010038A1 WO1994010038A1 (en) | 1994-05-11 |
| WO1994010038B1 true WO1994010038B1 (en) | 1994-07-07 |
Family
ID=25515449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1993/010373 Ceased WO1994010038A1 (en) | 1992-10-30 | 1993-10-25 | Form-fill-seal packaging apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5377474A (en) |
| EP (1) | EP0618869A4 (en) |
| CA (1) | CA2126865C (en) |
| WO (1) | WO1994010038A1 (en) |
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| US4288965A (en) * | 1979-08-27 | 1981-09-15 | Hayssen Manufacturing Company | Form-fill-seal packaging method and apparatus |
| US4501109A (en) * | 1982-05-03 | 1985-02-26 | Rexham Corporation | Packaging machine with improved web feeding system |
| US4532753A (en) * | 1983-02-18 | 1985-08-06 | Hayssen Manufacturing Company | Method of and apparatus for forming, filling and sealing packages |
| US4691499A (en) * | 1984-04-16 | 1987-09-08 | Fuji Machinery Company, Ltd. | Method of tensioning a web of packaging material |
| US4546596A (en) * | 1984-05-08 | 1985-10-15 | Hayssen Manufacturing Company | Method of and apparatus for forming, filling and sealing packages |
| US4620409A (en) * | 1985-01-14 | 1986-11-04 | Kliklok Corporation | Packaging film feed with parallelogram belt support |
| US4800707A (en) * | 1986-10-20 | 1989-01-31 | Package Machinery Company | Vertical form, fill & seal packaging machine with servo motor drive means |
| US4727707A (en) * | 1986-12-15 | 1988-03-01 | Kliklok Corporation | Packaging film feeding apparatus and method |
| US4751808A (en) * | 1987-04-09 | 1988-06-21 | Kliklok Corporation | Combined stripper and sealing apparatus for bag forming and method |
| US4768327A (en) * | 1987-06-22 | 1988-09-06 | Package Machinery Company | Packaging machine with variable sealing jaw displacement apparatus |
| US4860522A (en) * | 1988-06-20 | 1989-08-29 | Hayssen Manufacturing Company | Form, fill and seal registration system apparatus and method including variable length compensation and out of registration restoration |
| DE3907208A1 (en) * | 1988-10-18 | 1990-04-19 | Rovema Gmbh | METHOD AND DEVICE FOR CONTROLLING THE MOVEMENT OF CROSS-WELDING JAWS OF A TUBE BAG MACHINE |
| US5174096A (en) * | 1990-10-05 | 1992-12-29 | Ishida Scales Mfg. Co., Ltd. | Form-fill-seal type packaging machine |
| JP2934067B2 (en) * | 1991-07-12 | 1999-08-16 | 株式会社イシダ | Bag making and packaging machine |
| US5167107A (en) * | 1991-11-25 | 1992-12-01 | Pacmac, Inc. | Pinch sealer drive mechanism |
-
1992
- 1992-10-30 US US07/969,342 patent/US5377474A/en not_active Expired - Lifetime
-
1993
- 1993-10-25 EP EP93925110A patent/EP0618869A4/en not_active Withdrawn
- 1993-10-25 WO PCT/US1993/010373 patent/WO1994010038A1/en not_active Ceased
- 1993-10-25 CA CA002126865A patent/CA2126865C/en not_active Expired - Fee Related
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