CA1221342A - Method and apparatus for filling concatenated bags - Google Patents
Method and apparatus for filling concatenated bagsInfo
- Publication number
- CA1221342A CA1221342A CA000491472A CA491472A CA1221342A CA 1221342 A CA1221342 A CA 1221342A CA 000491472 A CA000491472 A CA 000491472A CA 491472 A CA491472 A CA 491472A CA 1221342 A CA1221342 A CA 1221342A
- Authority
- CA
- Canada
- Prior art keywords
- band
- packaging
- packaging blanks
- aforementioned
- blanks
- 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.)
- Expired
Links
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- Making Paper Articles (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Abstract of the Disclosure A method and apparatus for filling packaging blanks arranged in a continuous flexible band which displays two opposing walls and longitudinal first and second edges which incorporate a number of consecutively arranged packaging blanks each with a bottom section at the aforementioned second edge and two bonding zones arranged transversely in relation to the longi-tudinal direction of the band forming the side closures of the packaging blank. The band has two border strips arranged mainly opposite each other and extending in the longitudinal direction to the band at its afore-mentioned first edge, wherein the guide devices comprise two adjacent guide bars arranged in the same plane for interacting with the band. Each border strip is provided with a continuous holding device for interacting with the aforementioned guide bars, in that the guide bars display end sections which are situated in the vicinity of each other, and center sec-tions which are situated at a distance from each other.
These center sections are arranged to separate the border strips of the band from each other in conjunction with the opening of the packaging blanks, whereby a desired material or object may be placed in the packaging blanks. The method comprises pulling the continuous holding device forward during interaction with the packaging blank opening guide devices, which are in engagement with the aforementioned holding devices, filling the opened packaging blanks, closing the packaging blanks, and removing the border strips from the packaging blanks.
These center sections are arranged to separate the border strips of the band from each other in conjunction with the opening of the packaging blanks, whereby a desired material or object may be placed in the packaging blanks. The method comprises pulling the continuous holding device forward during interaction with the packaging blank opening guide devices, which are in engagement with the aforementioned holding devices, filling the opened packaging blanks, closing the packaging blanks, and removing the border strips from the packaging blanks.
Description
I
The present invention relates to a continuous flexible belt which displays two opposing walls and longitudinal upper and lower edges and which incorporates a number of consecutively arranged packaging blanks each with a bottom section at the aforementioned lower edge and two bonding zones arranged transversely in relation to the longitudin-at direction of the belt which form the side closures of the packaging blank. The invention also relates to a device for the filling of packaging blanks arranged in a continuous flexible belt at a filling station with guide devices for opening the packaging blanks as well as a method of filling and a method of opening such packaging blanks.
British patent No. 1 509 639 describes a device for fill-in bag-shaped pacXagings of fabric material which are advanced by means of two drive belts in engagement with the outer sides of the packaging belt. The packaging are opened by means of a linkage mechanism and attendant interacting guide devices. The device is complicated and does not satisfy present-day demands for low costs of packaging different kinds of articles. At all events, the device is not suitable for packaging in bags of plastic material which are arranged in the form of a con-tunnels belt.
One purpose of the present invention is to achieve a con-tenuous belt of packaging blanks which permits the use of a simplified device for filling the packaging blanks in a simple and reliable manner, particularly packaging blanks of a plastic material.
This is achieved through the present invention in that tune continuous belt incorporates two principally opposing up strip sections which extend in the longitudinal direction .
3~2 of the belt at its aforementioned upper edge and which are demarcated prom the packaging blanks by means ox a tear initiation in each wall arranged parallel to the aforementioned upper edge, whereby each strip section is provided with a continuous suspension device for interacting with packaging blank opening guide devices arranged at a willing station for filling the packaging blanks, in addition to which the belt is provided with slots in both walls, each having a vertical slot arranged between the bonding zones of two adjacent packaging blanks and a horizontal slot formed in advance or in conjunction with the filling operation on either side of the aforementioned vertical slot and between the packaging blanks and the suspension devices, whereby two adjacent horizontal slots are arranged at a distance from each other.
The simplified device according to the invent lion is characterized in that the guide devices consist of two adjacent guide bars arranged in the same place for interacting with the specified belt, whereby the guide bars display end sections which are situated in the vicinity of each other and center sections which are situated at a distance prom each other, these center sections being arranged to separate the strip sections of the belt in conjunction with the opening of the packaging blanks, whereby the desired material or object is placed in the packaging blanks.
A method is provided for filling the packaging blanks whereby the continuous holding device is pulled forward during interaction with the packaging blank opening guide devices, which are in engagement with the aforementioned holding devices, filling the opened packaging blanks, closing the packaging blanks, and - -removing the border strips from the packaging blanks.
The invention is described in greater detail it the following with reference to the drawings, where:
I
- pa Fig. 1 shows a side view of a longitudinal cross-section of a continuous belt according to the present invention, Fig. 2 shows the belt as in Fig. 1 rum above as it is advanced in a filling station, Fig. 3 shows a cross-section through the belt at the line III III in Fig. 4, Fig. 4 shows schematically from above a device or hand-lying a belt as in Fig. 1 from magazine to finished pack-agings, Fig. 5 shows a cross-s~ction through a belt and guide de-vices according to another version of the invention, Fig. 6 shows a cross-section through a belt and guide de-vices according to a third version of the invention and where Fig. 7 shows a cross-section through a belt and guide de-lo vices according to a fourth version of the invention.
With reference to Fig. 1, a section of a continuous belt 1, which incorporates a number of consecutively arranged packaging blanks 2, is shown. The belt has been formed by folding a broader material belt along its centerline 3 to form the bottom section 4 of the packaging blanks, the said bottom section being folded inward as shown in Fig.
1 during formation of the lower edge 38 of the belt. The opposing walls 5, 6 obtained through folding are joined to each other at regular intervals to form the bonding zones 7, 8 which extend at right angles to the bottom sea-lion 4 of the packaging blanks. The bonding zones, which can be formed by welding or gluing, or by any other suit able means, demarcate each packaging blank laterally and extend from the bottom section 4 to an upper point which is situated at a predetermined distance from the upper edge 9 of the belt. The continuous belt also incorpor-ales two longitudinal strip sections 10, 11 which comprise the upper areas of the walls formed through folding and which are demarcated from the packaging blanks by a long-itudinal perforation 12 in each wall or other tear initial lion which extends principally through the aforementioned upper point in the bonding zones. The perforation 12 consequently demarcates the packaging blanks at the top and defines the p~sitionoftheir openings 13.
I
Arranged in or between the bonding zones 7, B are vertical slots 14, whereby each 510t 14 may be interrupted by one or more bridges 15 which hold the packaging blanks in a line after each other. Further, horizontal slots 16 are arranged in the area for the boundary between the package in blanks and the upper strip sections 10, 11, i.e. age-wording to the version disclosed in line with the horn-zontal perforation 12, whereby these horizontal slots 16 are located adjacent to the vertical slots 14 and joined to them in the form of a T. As will be evident from Fig.
1, two adjacent horizontal slots 16 are arranged at a distance from each other. The slots are arranged in both walls 5, 6 as also is the perforation 12.
The two strip sections are both provided with suspension devices which in the version disclosed consist of sea-lions of the walls 5, 6 folded and welded to form long itudinal tunnels 17, 18 of predetermined size.
The aforementioned suspension devices, which are contain-use, are arranged to interact with special guide devices in the form of two guide bars or guide arms 19, 20 err-angled in -the same horizontal plane over which the suspend soon devices easily slide as the belt is advanced. ho arrangement incorporating such guide devices is shown schematically in Figs. 2 and 4. A continuous belt 1 is advanced from a magazine 21 in the version shown in Fig. 1 over a roller 22 to a filling station 23 which incorpor-ales the aforementioned guide devices in the form ox two guide bars 19, 20 arranged in the same horizontal plane which extend through the tunnels of the strip sections.
Viewed in the direction of travel, the bars display pane-Lyle end sections 24, 25 which are located upstream and situated in close proximity to each other and which open into centre sections 26, 27 which are situated at a pro-determined distance from each other and which are partially parallel. Alternatively, they may be completely arc-shaped. The end sections 2B, 29 located downstream are I
similarly parallel and situated in close proximity to each other. Situated in the area for the end sections 28, 29 are, in the version disclosed, two interacting welding jaws 30, 31 for sealing the packaging blanks after they have been filled at the filling station. The two bars 19, 20 are stationary an are supported by a stand snot shown at their end sections 28, 29 situated down-stream, whereby the transition sections between the bars and the two vertical parts of the stand are arranged with sharp cages to form cutting device 32 for cutting open the tunnels of the strip sections as the belt 1 is ad van-cede The arrangement also incorporates two opposing guide rollers 33j 34 which bring about such a change in the feed direction of the strips in relation to each other and to the belt that they are torn loose from the belt and from the filled packaging blanks which are collected at a receiving station. From the guide rollers 33, 34 the two strip sections are brought together over guide rollers 35, 36 and collected on a common take-up roller 37 which is arranged to be driven by a drive device (not shown) in the direction indicated by the arrow. The continuous belt is consequently advanced through driving of the take-up roller 37, whereby the strip sections are accordingly pulled forward over the two guide bars which are arranged to guide the strip sections away from each other at the same time as the packaging blanks are opened so that each blank can be filled with the desired material or object. Open-in is made possible, i.e. without damaging the packaging blanks, by the presence of the horizontal slots 16 whose length is chiefly the same as, or slightly more than, the distance between the two bars at their centre sections The bridges 15 can be severed by means of a suitable cut-tying device at the filling station as has taken place in the version according to Fig. 2 or at another suitable point situated downstream.
A supporting belt or conveyor belt 45, which primarily ox-tends from the filling station, supports the packaging I
blanks with their contents. The finished packaging are subsequently received on a conveyor belt 46 which carries the picnics to a receiving station for packing or other handling.
The horizontal slots 16 are formed in advance in the walls at the same time as the vertical slots 14. Alternative-lye at least the horizontal slots can be formed in the walls before opening and willing of the packaging blanks, e.g. in close proximity thereto or after the belt has left its magazine 21. Lateral folding of the angular sections between the horizontal and vertical slots will thus be avoided as the belt is advanced, particularly if it is advanced horizontally, unless upper uniting bridges are used.
In the version disclosed the length of the centre sect-ions 26, 27-of the bars is such that a packaging blank 2 can be held fully open between them. If desired, these centre sections 26, 27 can nevertheless be extended so that two or more packaging blanks can be opened simultan-easily. The belt can be advanced intermittently or con-tenuously, whereby in the latter case the willing device follows the movement of the belt in the filling station.
The filling device may incorporate a funnel, e.g. when the material that is to be packaged is in liquid form or in free-running particle form Alternatively, it may cons-it of mechanical transfer arms or a conveyor belt. Fit-lying can of course also be carried out manually.
The supporting junction of the tunnels of the strip sea-lions can also be achieved with other forms of suspension ED devices. In Fig. 5 these are shown in the form of thicker material 39 with-a circular cross-section, whereby the guide devices are modified in a corresponding manner to receive these thicker parts of the material, i.e. guide tubes 40 or guide rails with a downward-facing longitudinal slot, whereby the thicker material runs smoothly and with-out friction inside the tube or rail.
. .
Instead of folding a material belt to form the belt of the packaging blanks it can be formed from two smaller material belts which are placed together and welded, glued or 5 joined in some other manner along an edge to form the bottom sections of the packaging blanks.
The belt of packaging blanks consists of a flexible mat-Primal which has surfaces which can be welded by heat seal-in or which can be glued together or which can be joined in some other manner. A suitable plastic or a laminate which incorporates a suitable plastic layer can be used as the weldable material.
The disclosed 'guide devices 1 or 20 are stationary and completely fixed. The same 'function of opening the pack-aging blanks can nevertheless be achieved by means of two straight and movably arranged guide bars which are situated in the same horizontal plane. The guide bars may hereby be capable of parallel lateral movement to outer positions in order to open the packaging blanks or else they may be pettily ~ournalled-at their ends situated downstream so that their free ends can swing out to outer positions in order to open the packaging blanks.
Fig. 6 shows an alternative version of the belt as in Fig.
1, in that the tunnels of the strip'sectionsr instead of folding the walls outward, are formed by separate strips 41 ox material which are fixed to the outside of one of the belt walls and to the inside of the other wall.
Fig. 7 shows an alternative version ox the belt and guide devices as in Fig'. 5, in that the thicker material of the strip sections instead of being-formed by the-walls con sits of separate round pieces 42 of material which are fixed to the outside and the inside of the belt, whereby the guide devices consist of rails 43 with a downward-.
facing slot. In the three latter versions (Figs. 5, Rand I there is also an upper bridge 44 arranged in the vertical slot in the vicinity of the horizontal slot. An upper bridge of this kind is principally easily breakable so that it breaks as a result of the force to which it is subjected when the walls of the heft are forced away from each other in the filling station.
, This application is a division of application Serial No. 380,815, filed June 29, 1981.
The present invention relates to a continuous flexible belt which displays two opposing walls and longitudinal upper and lower edges and which incorporates a number of consecutively arranged packaging blanks each with a bottom section at the aforementioned lower edge and two bonding zones arranged transversely in relation to the longitudin-at direction of the belt which form the side closures of the packaging blank. The invention also relates to a device for the filling of packaging blanks arranged in a continuous flexible belt at a filling station with guide devices for opening the packaging blanks as well as a method of filling and a method of opening such packaging blanks.
British patent No. 1 509 639 describes a device for fill-in bag-shaped pacXagings of fabric material which are advanced by means of two drive belts in engagement with the outer sides of the packaging belt. The packaging are opened by means of a linkage mechanism and attendant interacting guide devices. The device is complicated and does not satisfy present-day demands for low costs of packaging different kinds of articles. At all events, the device is not suitable for packaging in bags of plastic material which are arranged in the form of a con-tunnels belt.
One purpose of the present invention is to achieve a con-tenuous belt of packaging blanks which permits the use of a simplified device for filling the packaging blanks in a simple and reliable manner, particularly packaging blanks of a plastic material.
This is achieved through the present invention in that tune continuous belt incorporates two principally opposing up strip sections which extend in the longitudinal direction .
3~2 of the belt at its aforementioned upper edge and which are demarcated prom the packaging blanks by means ox a tear initiation in each wall arranged parallel to the aforementioned upper edge, whereby each strip section is provided with a continuous suspension device for interacting with packaging blank opening guide devices arranged at a willing station for filling the packaging blanks, in addition to which the belt is provided with slots in both walls, each having a vertical slot arranged between the bonding zones of two adjacent packaging blanks and a horizontal slot formed in advance or in conjunction with the filling operation on either side of the aforementioned vertical slot and between the packaging blanks and the suspension devices, whereby two adjacent horizontal slots are arranged at a distance from each other.
The simplified device according to the invent lion is characterized in that the guide devices consist of two adjacent guide bars arranged in the same place for interacting with the specified belt, whereby the guide bars display end sections which are situated in the vicinity of each other and center sections which are situated at a distance prom each other, these center sections being arranged to separate the strip sections of the belt in conjunction with the opening of the packaging blanks, whereby the desired material or object is placed in the packaging blanks.
A method is provided for filling the packaging blanks whereby the continuous holding device is pulled forward during interaction with the packaging blank opening guide devices, which are in engagement with the aforementioned holding devices, filling the opened packaging blanks, closing the packaging blanks, and - -removing the border strips from the packaging blanks.
The invention is described in greater detail it the following with reference to the drawings, where:
I
- pa Fig. 1 shows a side view of a longitudinal cross-section of a continuous belt according to the present invention, Fig. 2 shows the belt as in Fig. 1 rum above as it is advanced in a filling station, Fig. 3 shows a cross-section through the belt at the line III III in Fig. 4, Fig. 4 shows schematically from above a device or hand-lying a belt as in Fig. 1 from magazine to finished pack-agings, Fig. 5 shows a cross-s~ction through a belt and guide de-vices according to another version of the invention, Fig. 6 shows a cross-section through a belt and guide de-vices according to a third version of the invention and where Fig. 7 shows a cross-section through a belt and guide de-lo vices according to a fourth version of the invention.
With reference to Fig. 1, a section of a continuous belt 1, which incorporates a number of consecutively arranged packaging blanks 2, is shown. The belt has been formed by folding a broader material belt along its centerline 3 to form the bottom section 4 of the packaging blanks, the said bottom section being folded inward as shown in Fig.
1 during formation of the lower edge 38 of the belt. The opposing walls 5, 6 obtained through folding are joined to each other at regular intervals to form the bonding zones 7, 8 which extend at right angles to the bottom sea-lion 4 of the packaging blanks. The bonding zones, which can be formed by welding or gluing, or by any other suit able means, demarcate each packaging blank laterally and extend from the bottom section 4 to an upper point which is situated at a predetermined distance from the upper edge 9 of the belt. The continuous belt also incorpor-ales two longitudinal strip sections 10, 11 which comprise the upper areas of the walls formed through folding and which are demarcated from the packaging blanks by a long-itudinal perforation 12 in each wall or other tear initial lion which extends principally through the aforementioned upper point in the bonding zones. The perforation 12 consequently demarcates the packaging blanks at the top and defines the p~sitionoftheir openings 13.
I
Arranged in or between the bonding zones 7, B are vertical slots 14, whereby each 510t 14 may be interrupted by one or more bridges 15 which hold the packaging blanks in a line after each other. Further, horizontal slots 16 are arranged in the area for the boundary between the package in blanks and the upper strip sections 10, 11, i.e. age-wording to the version disclosed in line with the horn-zontal perforation 12, whereby these horizontal slots 16 are located adjacent to the vertical slots 14 and joined to them in the form of a T. As will be evident from Fig.
1, two adjacent horizontal slots 16 are arranged at a distance from each other. The slots are arranged in both walls 5, 6 as also is the perforation 12.
The two strip sections are both provided with suspension devices which in the version disclosed consist of sea-lions of the walls 5, 6 folded and welded to form long itudinal tunnels 17, 18 of predetermined size.
The aforementioned suspension devices, which are contain-use, are arranged to interact with special guide devices in the form of two guide bars or guide arms 19, 20 err-angled in -the same horizontal plane over which the suspend soon devices easily slide as the belt is advanced. ho arrangement incorporating such guide devices is shown schematically in Figs. 2 and 4. A continuous belt 1 is advanced from a magazine 21 in the version shown in Fig. 1 over a roller 22 to a filling station 23 which incorpor-ales the aforementioned guide devices in the form ox two guide bars 19, 20 arranged in the same horizontal plane which extend through the tunnels of the strip sections.
Viewed in the direction of travel, the bars display pane-Lyle end sections 24, 25 which are located upstream and situated in close proximity to each other and which open into centre sections 26, 27 which are situated at a pro-determined distance from each other and which are partially parallel. Alternatively, they may be completely arc-shaped. The end sections 2B, 29 located downstream are I
similarly parallel and situated in close proximity to each other. Situated in the area for the end sections 28, 29 are, in the version disclosed, two interacting welding jaws 30, 31 for sealing the packaging blanks after they have been filled at the filling station. The two bars 19, 20 are stationary an are supported by a stand snot shown at their end sections 28, 29 situated down-stream, whereby the transition sections between the bars and the two vertical parts of the stand are arranged with sharp cages to form cutting device 32 for cutting open the tunnels of the strip sections as the belt 1 is ad van-cede The arrangement also incorporates two opposing guide rollers 33j 34 which bring about such a change in the feed direction of the strips in relation to each other and to the belt that they are torn loose from the belt and from the filled packaging blanks which are collected at a receiving station. From the guide rollers 33, 34 the two strip sections are brought together over guide rollers 35, 36 and collected on a common take-up roller 37 which is arranged to be driven by a drive device (not shown) in the direction indicated by the arrow. The continuous belt is consequently advanced through driving of the take-up roller 37, whereby the strip sections are accordingly pulled forward over the two guide bars which are arranged to guide the strip sections away from each other at the same time as the packaging blanks are opened so that each blank can be filled with the desired material or object. Open-in is made possible, i.e. without damaging the packaging blanks, by the presence of the horizontal slots 16 whose length is chiefly the same as, or slightly more than, the distance between the two bars at their centre sections The bridges 15 can be severed by means of a suitable cut-tying device at the filling station as has taken place in the version according to Fig. 2 or at another suitable point situated downstream.
A supporting belt or conveyor belt 45, which primarily ox-tends from the filling station, supports the packaging I
blanks with their contents. The finished packaging are subsequently received on a conveyor belt 46 which carries the picnics to a receiving station for packing or other handling.
The horizontal slots 16 are formed in advance in the walls at the same time as the vertical slots 14. Alternative-lye at least the horizontal slots can be formed in the walls before opening and willing of the packaging blanks, e.g. in close proximity thereto or after the belt has left its magazine 21. Lateral folding of the angular sections between the horizontal and vertical slots will thus be avoided as the belt is advanced, particularly if it is advanced horizontally, unless upper uniting bridges are used.
In the version disclosed the length of the centre sect-ions 26, 27-of the bars is such that a packaging blank 2 can be held fully open between them. If desired, these centre sections 26, 27 can nevertheless be extended so that two or more packaging blanks can be opened simultan-easily. The belt can be advanced intermittently or con-tenuously, whereby in the latter case the willing device follows the movement of the belt in the filling station.
The filling device may incorporate a funnel, e.g. when the material that is to be packaged is in liquid form or in free-running particle form Alternatively, it may cons-it of mechanical transfer arms or a conveyor belt. Fit-lying can of course also be carried out manually.
The supporting junction of the tunnels of the strip sea-lions can also be achieved with other forms of suspension ED devices. In Fig. 5 these are shown in the form of thicker material 39 with-a circular cross-section, whereby the guide devices are modified in a corresponding manner to receive these thicker parts of the material, i.e. guide tubes 40 or guide rails with a downward-facing longitudinal slot, whereby the thicker material runs smoothly and with-out friction inside the tube or rail.
. .
Instead of folding a material belt to form the belt of the packaging blanks it can be formed from two smaller material belts which are placed together and welded, glued or 5 joined in some other manner along an edge to form the bottom sections of the packaging blanks.
The belt of packaging blanks consists of a flexible mat-Primal which has surfaces which can be welded by heat seal-in or which can be glued together or which can be joined in some other manner. A suitable plastic or a laminate which incorporates a suitable plastic layer can be used as the weldable material.
The disclosed 'guide devices 1 or 20 are stationary and completely fixed. The same 'function of opening the pack-aging blanks can nevertheless be achieved by means of two straight and movably arranged guide bars which are situated in the same horizontal plane. The guide bars may hereby be capable of parallel lateral movement to outer positions in order to open the packaging blanks or else they may be pettily ~ournalled-at their ends situated downstream so that their free ends can swing out to outer positions in order to open the packaging blanks.
Fig. 6 shows an alternative version of the belt as in Fig.
1, in that the tunnels of the strip'sectionsr instead of folding the walls outward, are formed by separate strips 41 ox material which are fixed to the outside of one of the belt walls and to the inside of the other wall.
Fig. 7 shows an alternative version ox the belt and guide devices as in Fig'. 5, in that the thicker material of the strip sections instead of being-formed by the-walls con sits of separate round pieces 42 of material which are fixed to the outside and the inside of the belt, whereby the guide devices consist of rails 43 with a downward-.
facing slot. In the three latter versions (Figs. 5, Rand I there is also an upper bridge 44 arranged in the vertical slot in the vicinity of the horizontal slot. An upper bridge of this kind is principally easily breakable so that it breaks as a result of the force to which it is subjected when the walls of the heft are forced away from each other in the filling station.
, This application is a division of application Serial No. 380,815, filed June 29, 1981.
Claims (11)
1. A device for filling packaging blanks arranged in a continuous, flexible band at a filling station with guide devices for opening the packaging blanks, the said band displaying two opposing walls and longitudinal first and second edges and incorporat-ing a number of consecutively arranged packaging blanks each with a bottom section at the aforementioned second edge and two bonding zones arranged transversely in relation to the longitudinal direction of the band forming the side closures of the packaging blank, wherein the guide devices consist of two adjacent guide bars arranged in the same plane for interacting with the band, which incorporates two border strips mainly opposite each other which extend in the longitudinal direction of the band at its aforementioned first edge, whereby each border strip is provided with a continuous holding device for interacting with the aforementioned guide bars, in that the guide bars display end sections which are situated in the vicinity of each other, and center sections which are situated at a distance from each other, these center sections being arranged to separate the border strip of the band from each other in conjunction with the opening of the packaging blanks, whereby a desired material or object may be placed in the packaging blanks.
2. A device as defined in claim 1, wherein the guide devices consist of bars or tubes for insertion in their own holding devices in the band, the said holding devices being in the form of tunnels.
3. A device as defined in claim 1, wherein the guide devices consist of tubes or rails with a downward-facing longitudinal slot and with an internal space for the reception of its own holding device in the band, the said holding device being in the form of thicker material.
4. A device as defined in claim 1, wherein it incorporates a driven device for the collection of separated border strips from the band during simul-taneous advancement of the band past the filling station.
5. A device as defined in claim 1, 2, or 3, wherein the guide devices are stationary.
6. A device as defined in claim 1, 2, or 3, wherein the guide devices are capable of movement.
7. A device as defined in claim 1, 2, or 3, wherein the guide devices are arranged in the same horizontal plane.
8. A method of filling packaging blanks arranged in a continuous, flexible band, this band displaying two opposing walls and longitudinal first and second edges and incorporating a number of consecutively arranged packaging blanks each with a bottom section at the aforementioned second edge and two bonding zones arranged transversely in relation to the longi-tudinal direction of the band and forming the side closures of the packaging blank, said band having two border strips arranged mainly opposite each other and extending in the longitudinal direction of the band at its aforementioned first edge, whereby each border strip is provided with a continuous holding device, and blank opening guide devices in engagement with the holding device, said method comprising pulling said continuous holding device forward during inter-action with the packaging blank opening guide devices, filling said opened packaging blanks, closing said packaging blanks, and removing said border strips from the packaging blanks
9. A method of opening packaging blanks arranged in a continuous, flexible band, this band displaying two opposing walls and longitudinal first and second edges and incorporating a number of consecutively arranged packaging blanks each with a bottom section at the aforementioned second edge and two bonding zones arranged transversely in relation to the longitudinal direction of the band which form the side closures of the packaging blank, said band having two border strips arranged mainly opposite each other and extend-ing in the longitudinal direction of the band at its aforementioned first edge, whereby each border strip is provided with a continuous holding device, and blank opening guide devices in engagement with the holding device, said method comprising pulling said continuous holding devices forward during interaction with the packaging blank opening guide devices, which are in engagement with the aforementioned holding devices, whereby to open said packaging blank.
10. A method as defined in claim 8 or 9, wherein said border strip is formed in each wall of the associated blank by forming tear initiation lines.
11. A method as defined in claim 10, wherein horizontal spaced slots are formed in said wall at each of the bonding zones and coincident with the tear initiation lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000491472A CA1221342A (en) | 1980-06-30 | 1985-09-24 | Method and apparatus for filling concatenated bags |
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8004830A SE436860B (en) | 1980-06-30 | 1980-06-30 | Bag shaped packing material. |
| SE8004829A SE434042B (en) | 1980-06-30 | 1980-06-30 | COUNCIL OF CUSTOM PACKAGING TOPICS |
| SE8004829-1 | 1980-06-30 | ||
| SE8004830-9 | 1980-06-30 | ||
| SE8006976-8 | 1980-10-06 | ||
| SE8006976A SE433199B (en) | 1980-10-06 | 1980-10-06 | Arrangement for opening bag-shaped packing blanks arranged in a web |
| CA000380815A CA1199615A (en) | 1980-06-30 | 1981-06-29 | Blank belt |
| CA000491472A CA1221342A (en) | 1980-06-30 | 1985-09-24 | Method and apparatus for filling concatenated bags |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000380815A Division CA1199615A (en) | 1980-06-30 | 1981-06-29 | Blank belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1221342A true CA1221342A (en) | 1987-05-05 |
Family
ID=27426312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000491472A Expired CA1221342A (en) | 1980-06-30 | 1985-09-24 | Method and apparatus for filling concatenated bags |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1221342A (en) |
-
1985
- 1985-09-24 CA CA000491472A patent/CA1221342A/en not_active Expired
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