EP0134711B1 - Twin wicketing bag machine - Google Patents
Twin wicketing bag machine Download PDFInfo
- Publication number
- EP0134711B1 EP0134711B1 EP84305500A EP84305500A EP0134711B1 EP 0134711 B1 EP0134711 B1 EP 0134711B1 EP 84305500 A EP84305500 A EP 84305500A EP 84305500 A EP84305500 A EP 84305500A EP 0134711 B1 EP0134711 B1 EP 0134711B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stack
- knives
- segments
- web
- perforating
- 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
- 230000035515 penetration Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 7
- 230000000717 retained effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000002028 premature Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/16—Cutting 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
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/92—Delivering
- B31B70/98—Delivering in stacks or bundles
- B31B70/984—Stacking bags on wicket pins
Definitions
- This invention relates to bag-making apparatus for producing plastics bags from segments, each segment being processed to produce two bags, said apparatus comprising elongate upstanding members arranged to receive and hold superimposed assembled segments as a stack, perforating means operable to produce two parallel, spaced lines of perforations in the segments, and cutter means operable to sever and seal the segments of the stack along a line intermediate the lines of perforations.
- the disclosure of the present application is related to and is an improvement to the subject matter disclosed in GB-A-2089286.
- This prior application discloses a bag making procedure in which the elongate strip of thermoplastic web is provided by rotary perforating wheels with lines of perforation located centrally of the web strip. Each segment produced by the action of the seal bar contains the two centrally located lines of perforations.
- a rotary transfer device In transporting the web segment by a rotary transfer device, from the pickup station to the stacking station containing the upwardly projecting pins, partial or full separation along a line of perforation sometimes occurs. If full separation occurs while the web segment is in transit to the stacking station, stacking of that web segment cannot be achieved since registration with the stacking post is no longer possible. In the event partial separation occurs and stacking on the post is achieved a portion of that web segment may not lie in a position to produce a bag stack having the edges of each individual bag overlying each other.
- the problem to be overcome is, therefore, to provide bag-making apparatus in which the risk of perforations provided in a web becoming effective to divide the web prematurely is eliminated.
- perforating means which are located to operate successively on stacks of segments held on said upstanding members and comprise a pair of reciprocating knives each of which has a series of slots interrupting the cutting edge so that the knives penetrate the stack to produce said spaced lines of perforations.
- the cutter means and the knives are operable on successive stacks and the cutter means is operable concurrently with the knives.
- a pair of simultaneously operable linear actuators is mounted on a support located above the stack and through which support actuator rods project, a crosshead is fixed to the actuator rods, means is carried by said crosshead for compressing the stack, and the knives also carried by said crosshead perforate the stack while compressed.
- a holder supports the knives and means carried by said holder for heating said knives thereby to facilitate penetration of the stack are provided.
- the cutting edge between the slots is jagged.
- GB-A-2 089 286 discloses, in Figures 9 and 10, a cutting station substantially similar to the cutting station disclosed herein.
- a web roll WR is mounted on a transverse shaft 20 rotatably supported by an unwind stand 22 carried by a frame structure 24.
- the web strip unwound from the web roll WR passes over a series of rolls collectively identified by the numeral 26 and then progresses over a series of rolls rotatably mounted in a tower structure 28 which includes gusseting devices 30.
- Unreeling of the web strip from the web roll is accomplished by drive rolls 32 and thereafter the web is passed over a series of rolls comprising a web tensioning device 34.
- a turning roll 36 directs the web strip to draw rolls 37 which are intermittently operated by the drive of a bag machine 38.
- thermoplastic film TF is advanced by the draw rolls to a severing and sealing station 40 and the portion of web advanced is momentarily retained on a series of belts 42 generally describing a triangular path and defining a transfer station TS.
- a rotary transfer mechanism 44 which includes a plurality of regularly spaced radially extending tubular bars 46, connected through a hub 48 to a source of vacuum, engages and retains a web segment at the transfer station and translates it through an arc for reception by one of a series of stacking devices 50 located at a stacking station 52.
- each segment has a central medial strip removed from one panel and the remaining panel is provided with four holes 54 through which project stacking pins or posts 56 projecting upwardly and fixed to a base plate of the stacking devices 50.
- the posts 56 are located to correspond to the spacing of the holes 54 so that each web segment is retained on the stacking devices 50 by the posts 56.
- FIG. 1B will reveal the provision of a conveyor 58 that is intermittently driven by drive mechanism 60 such that the upper reach of the conveyor is incrementally advanced from the right to left as viewed in Figure 1B. Also, as revealed by this Figure, the stacking devices 50 are mounted on the conveyor and successive stacking devices are positioned at the stacking station 52 for a period of time required to accumulate a selected number of web segments.
- the problem of premature partial or complete detachment of a portion of a web segment WS, along a line of perforation does not arise since the web segments produced by the bag machine do not include perforations. Accordingly, forces created by air pressure in the course of transferring a web segment by the transfer device 44 from the transfer station TS to the stacking station 52 are easily tolerated by the web segment.
- the bag stacks produced include perforations but their creation occurs while a stack of web segments is retained on the stacking posts 56 carried by the stacking devices 50.
- the conveyor 58 is inactive.
- the perforating means 62 and the cutting means 64 are rendered operative, sequentially or concurrently, to effect, respectively, perforation and separation of the accumulated web segments to produce two individual bag stacks each of which contains a line of perforation.
- the preferred construction of the perforating means 62 comprises linear actuators 68 secured to a flat plate 70 which is in turn adjustably secured to horizontal supports 72 ( Figure 1B) of the frame structure 66.
- the plate 70 is provided with bores through which extend the rods 74 of the linear actuator 68.
- the extremity of each rod 74 is fixed to a crosshead 76 carrying downwardly projecting perforating knife holders 78.
- the knife holders 78 are secured to the crossheads 76 by a series of bolts 80 passing through insulating spacer blocks 82 and threaded into the perforating knife holders 78.
- Perforating knives 84 are secured to the holders 78 by a series of fasteners 86 and the perforating knives 84 extend beyond the holders 78 sufficient to penetrate a stack of web segments.
- Figure 8 shows the general configuration of each of the perforating knives, and it will be seen that each knife is provided with a series of slots 88 creating an interruption in the line of cut defined by a cutting edge 90 which may take the form of a jagged edge which experience has shown requires less force to penetrate each stack of web segments.
- each of the perforating knife holders 78 is provided with a slug heater 92 which can be energized to produce a given temperature to each of the knives 84. Heating of the knives 84 has been found to reduce the amount of force necessary to penetrate a stack of web segments and yet the tendency to form a blocked stack does not arise when a sufficiently low temperature level is selected.
- the compressing means 94 include elongate offset bars 96 which are substantially equal in length to the perforating knives 84 and make contact with the stack adjacent the line of perforation established by the knives 84.
- the bars 96 are connected to the crosshead 76 by spring biased rods 98 which slidably extend through bushings 100 mounted in the crosshead 76.
- a stop member 102 is secured to the upper end of the rod 98 by a fastener 104 to limit and retain the rods 98 in the bushings 100.
- the stacking devices 50 are provided with inserts 106 which can be made of wood or plastic material which will allow penetration of the knives 84 and yet have a minimal effect in rendering the cutting edge of the knives dull.
- the cutting means 64 is located downstream and adjacent the perforating means 62 and if desired the perforating means and the cutting means can be actuated simultaneously or sequentially at the option of the user.
- Figures 6 and 7 illustrate the cutting means 64 in greater detail and it will be seen to comprise linear actuators 108 also mounted on the flat plate 70 being suitably bored to accommodate reciprocating movement of rods 110 having their lower ends threaded to receive a nut 112 fastening the rods to a crosshead 114.
- a knife holder 116 is in turn connected to the crosshead 114 by bolts 118 extending through insulating spacers 120.
- the cutting means is provided with stack compressing means 122 which include presser bars 124 rigidly connected to rods 126 having their upper ends slidably disposed, by means of bushings 128, to the crosshead 114.
- Tension springs 130 are associated with each of the rods and serve to bias the presser bars 124 downwardly.
- the knife holder 116 is formed to receive and retain a cutting knife 132 and rod heaters 134 serving to heat the knife 132 to a desired temperature to facilitate cutting of the web segments, while they are retained on the pins 56, into two bag stacks each of which includes a line of perforation previously made by the perforating means 62.
- cutting means 64 includes, in the stacking device 50, an insert 136 selected of a material such as previously indicated to prevent dulling of the cutting edge of the knife 132.
- the knife 132 is retained in the holder 116 by a plurality of fasteners 138.
- Reference to Figures 3, 4 and 5 shows the condition of a stack of web segments at the stacking station 52, the perforating station 62 and the cutting station 64.
- the conveyor positions a stack of web segments WS at the perforating station 62 and the actuators 68 are operated to drive the perforating knives 84 to cut the web segments, lines of perforation 85 are produced adjacent the stacking posts 56.
- the cutting station 64, operating the parting knife 132 may be concurrently or subsequently operated to produce two bag stacks BS by cutting the web segments along a line PS, located between the stacking posts 56.
Landscapes
- Making Paper Articles (AREA)
Description
- This invention relates to bag-making apparatus for producing plastics bags from segments, each segment being processed to produce two bags, said apparatus comprising elongate upstanding members arranged to receive and hold superimposed assembled segments as a stack, perforating means operable to produce two parallel, spaced lines of perforations in the segments, and cutter means operable to sever and seal the segments of the stack along a line intermediate the lines of perforations.
- The disclosure of the present application is related to and is an improvement to the subject matter disclosed in GB-A-2089286.
- This prior application discloses a bag making procedure in which the elongate strip of thermoplastic web is provided by rotary perforating wheels with lines of perforation located centrally of the web strip. Each segment produced by the action of the seal bar contains the two centrally located lines of perforations. In transporting the web segment by a rotary transfer device, from the pickup station to the stacking station containing the upwardly projecting pins, partial or full separation along a line of perforation sometimes occurs. If full separation occurs while the web segment is in transit to the stacking station, stacking of that web segment cannot be achieved since registration with the stacking post is no longer possible. In the event partial separation occurs and stacking on the post is achieved a portion of that web segment may not lie in a position to produce a bag stack having the edges of each individual bag overlying each other.
- A simple solution to the premature separation at the perforations would be an alternative location, to that adopted in GB-A-2089286, for the perforating wheels but any location upstream of the rotary transfer device would fail to overcome the premature separation problem. Once the segments have been received and held on the elongate upstanding members the use of the rotary perforating means after the reception of each successive segment would result in a substantial reduction in the production rate of the apparatus as a whole.
- The problem to be overcome is, therefore, to provide bag-making apparatus in which the risk of perforations provided in a web becoming effective to divide the web prematurely is eliminated.
- According to the present invention the problem is solved by the provision of perforating means .which are located to operate successively on stacks of segments held on said upstanding members and comprise a pair of reciprocating knives each of which has a series of slots interrupting the cutting edge so that the knives penetrate the stack to produce said spaced lines of perforations.
- Preferably the cutter means and the knives are operable on successive stacks and the cutter means is operable concurrently with the knives.
- In the preferred construction of the apparatus, a pair of simultaneously operable linear actuators is mounted on a support located above the stack and through which support actuator rods project, a crosshead is fixed to the actuator rods, means is carried by said crosshead for compressing the stack, and the knives also carried by said crosshead perforate the stack while compressed.
- In order further to facilitate the production of the perforations a holder supports the knives and means carried by said holder for heating said knives thereby to facilitate penetration of the stack are provided.
- In a preferred construction, in order to further facilitate the perforation of the stack the cutting edge between the slots is jagged.
- GB-A-2 089 286 discloses, in Figures 9 and 10, a cutting station substantially similar to the cutting station disclosed herein.
- The invention will now be described by way of example with reference to the accompanying diagrammatic drawings, in which:
- Figures 1A and 1B, considered together, is a side elevation of a web processing machine constructed and operating in accordance with the present invention;
- Figure 2 is a perspective view illustrating a mechanism forming a part of the machine of Figure 1 involved for transferring a web segment from a transfer station to the stacking station of the machine;
- Figure 3 is a perspective view illustrating a stack of web segments deposited on pins carried by a stacking plate;
- Figure 4 is similar to Figure 3 but additionally shows perforating knives of the machine after. perforation of the stacked web segments has occurred;
- Figure 5 illustrates the web segments being cut between the pins by a knife to produce two bag stacks;
- Figure 6 is a side elevation of the knife supporting and actuating means;
- Figure 7 is a section of Figure 6 taken substantially along the line 7-7;
- Figure 8 is an elevation of the perforating mechanism; and
- Figure 9 is a side view of Figure 8 as viewed along the line 9-9.
- Referring first to Figure 1A will be seen that a web roll WR is mounted on a
transverse shaft 20 rotatably supported by anunwind stand 22 carried by aframe structure 24. The web strip unwound from the web roll WR passes over a series of rolls collectively identified by thenumeral 26 and then progresses over a series of rolls rotatably mounted in atower structure 28 which includes gussetingdevices 30. Unreeling of the web strip from the web roll is accomplished bydrive rolls 32 and thereafter the web is passed over a series of rolls comprising aweb tensioning device 34. Aturning roll 36 directs the web strip to drawrolls 37 which are intermittently operated by the drive of abag machine 38. - The thermoplastic film TF is advanced by the draw rolls to a severing and
sealing station 40 and the portion of web advanced is momentarily retained on a series ofbelts 42 generally describing a triangular path and defining a transfer station TS. On creation of a web segment WS located at the transfer station (Fig. 2), arotary transfer mechanism 44, which includes a plurality of regularly spaced radially extendingtubular bars 46, connected through ahub 48 to a source of vacuum, engages and retains a web segment at the transfer station and translates it through an arc for reception by one of a series ofstacking devices 50 located at astacking station 52. - Reference to Figure 2 will reveal one style of web segment in which each segment has a central medial strip removed from one panel and the remaining panel is provided with four
holes 54 through which project stacking pins orposts 56 projecting upwardly and fixed to a base plate of thestacking devices 50. Theposts 56 are located to correspond to the spacing of theholes 54 so that each web segment is retained on thestacking devices 50 by theposts 56. During machine operation a selected number of web segments are stacked on thestacking devices 50 and when the predetermined number of web segments has been stacked operation of thebag machine 38 is arrested and concurrently therewith asuccessive stacking device 50 is positioned at thestacking station 52. - Reference to Figure 1B will reveal the provision of a
conveyor 58 that is intermittently driven bydrive mechanism 60 such that the upper reach of the conveyor is incrementally advanced from the right to left as viewed in Figure 1B. Also, as revealed by this Figure, thestacking devices 50 are mounted on the conveyor and successive stacking devices are positioned at thestacking station 52 for a period of time required to accumulate a selected number of web segments. - In accordance with the principle feature of the preferred embodiment the problem of premature partial or complete detachment of a portion of a web segment WS, along a line of perforation, does not arise since the web segments produced by the bag machine do not include perforations. Accordingly, forces created by air pressure in the course of transferring a web segment by the
transfer device 44 from the transfer station TS to thestacking station 52 are easily tolerated by the web segment. As will be explained presently, the bag stacks produced include perforations but their creation occurs while a stack of web segments is retained on thestacking posts 56 carried by thestacking devices 50. - Further processing of the web segments WS to produce two perforated bag stacks from each group of web segments is achieved by perforating
means 62 andcutting means 64 being carried by aframe structure 66 straddling and overlying theconveyor 58. The cutting means 64 are in substantial respects similar to the cutting means disclosed in the above referenced Application. - During the time when a stack of web segments is being accumulated on the
stacking device 50 located at thestacking station 52 theconveyor 58 is inactive. During this time period the perforating means 62 and thecutting means 64 are rendered operative, sequentially or concurrently, to effect, respectively, perforation and separation of the accumulated web segments to produce two individual bag stacks each of which contains a line of perforation. - The preferred construction of the perforating
means 62 compriseslinear actuators 68 secured to aflat plate 70 which is in turn adjustably secured to horizontal supports 72 (Figure 1B) of theframe structure 66. Theplate 70 is provided with bores through which extend therods 74 of thelinear actuator 68. The extremity of eachrod 74 is fixed to acrosshead 76 carrying downwardly projecting perforatingknife holders 78. Theknife holders 78 are secured to thecrossheads 76 by a series ofbolts 80 passing through insulatingspacer blocks 82 and threaded into the perforatingknife holders 78. Perforatingknives 84 are secured to theholders 78 by a series offasteners 86 and the perforatingknives 84 extend beyond theholders 78 sufficient to penetrate a stack of web segments. Figure 8 shows the general configuration of each of the perforating knives, and it will be seen that each knife is provided with a series ofslots 88 creating an interruption in the line of cut defined by acutting edge 90 which may take the form of a jagged edge which experience has shown requires less force to penetrate each stack of web segments. To enhance penetration of theknife 84 each of the perforatingknife holders 78 is provided with aslug heater 92 which can be energized to produce a given temperature to each of theknives 84. Heating of theknives 84 has been found to reduce the amount of force necessary to penetrate a stack of web segments and yet the tendency to form a blocked stack does not arise when a sufficiently low temperature level is selected. - Before the perforating
knives 84 make contact with the uppermost web segment of the stack of segments, means 94 are provided for compressing the stack to prevent upward bulging of the stack when theknives 84 come into pressure engagement with the stack. As shown in Figures 8 and 9 the compressing means 94 includeelongate offset bars 96 which are substantially equal in length to the perforatingknives 84 and make contact with the stack adjacent the line of perforation established by theknives 84. Thebars 96 are connected to thecrosshead 76 by springbiased rods 98 which slidably extend throughbushings 100 mounted in thecrosshead 76. Astop member 102 is secured to the upper end of therod 98 by afastener 104 to limit and retain therods 98 in thebushings 100. - According to the above described arrangement when the
actuator 68 is energized to effect operation of the perforating means 62 theelongate bars 96 come in contact with the stack of web segments forcing them downwardly onto thestacking devices 50 and immediately thereafter theperforating knives 84 penetrate and accordingly perforate the stack of web segments. - In order to enhance the longevity of the
knives 84 thestacking devices 50 are provided with inserts 106 which can be made of wood or plastic material which will allow penetration of theknives 84 and yet have a minimal effect in rendering the cutting edge of the knives dull. - As shown in Figure 2 the
cutting means 64 is located downstream and adjacent the perforatingmeans 62 and if desired the perforating means and the cutting means can be actuated simultaneously or sequentially at the option of the user. Figures 6 and 7 illustrate the cutting means 64 in greater detail and it will be seen to compriselinear actuators 108 also mounted on theflat plate 70 being suitably bored to accommodate reciprocating movement ofrods 110 having their lower ends threaded to receive anut 112 fastening the rods to acrosshead 114. Aknife holder 116 is in turn connected to thecrosshead 114 bybolts 118 extending throughinsulating spacers 120. In similar respects the cutting means is provided withstack compressing means 122 which includepresser bars 124 rigidly connected torods 126 having their upper ends slidably disposed, by means ofbushings 128, to thecrosshead 114.Tension springs 130 are associated with each of the rods and serve to bias thepresser bars 124 downwardly. - The
knife holder 116 is formed to receive and retain acutting knife 132 androd heaters 134 serving to heat theknife 132 to a desired temperature to facilitate cutting of the web segments, while they are retained on thepins 56, into two bag stacks each of which includes a line of perforation previously made by the perforatingmeans 62. As with the perforating means, cutting means 64 includes, in the stackingdevice 50, aninsert 136 selected of a material such as previously indicated to prevent dulling of the cutting edge of theknife 132. Theknife 132 is retained in theholder 116 by a plurality offasteners 138. - Reference to Figures 3, 4 and 5 shows the condition of a stack of web segments at the stacking
station 52, the perforatingstation 62 and the cuttingstation 64. When the conveyor positions a stack of web segments WS at the perforatingstation 62 and theactuators 68 are operated to drive the perforatingknives 84 to cut the web segments, lines ofperforation 85 are produced adjacent the stacking posts 56. As previously mentioned, the cuttingstation 64, operating theparting knife 132 may be concurrently or subsequently operated to produce two bag stacks BS by cutting the web segments along a line PS, located between the stacking posts 56. - In view of the above described construction and the mode of operation of the over-all machine, and more particularly the perforating means 62 and the cutting means 64, it should be evident that performing the perforating and cutting function after a selected number of web segments have been stacked eliminates the problem of the prior art of premature separation along one or more lines of perforation formed in the web segment before stacking.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8686112290T DE3480535D1 (en) | 1983-09-02 | 1984-08-13 | Apparatus and method for producing bags |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52892683A | 1983-09-02 | 1983-09-02 | |
US528926 | 1990-05-25 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86112290.1 Division-Into | 1986-09-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0134711A2 EP0134711A2 (en) | 1985-03-20 |
EP0134711A3 EP0134711A3 (en) | 1985-04-17 |
EP0134711B1 true EP0134711B1 (en) | 1988-03-23 |
Family
ID=24107788
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86112290A Expired EP0215394B1 (en) | 1983-09-02 | 1984-08-13 | Apparatus and method for producing bags |
EP84305500A Expired EP0134711B1 (en) | 1983-09-02 | 1984-08-13 | Twin wicketing bag machine |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86112290A Expired EP0215394B1 (en) | 1983-09-02 | 1984-08-13 | Apparatus and method for producing bags |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP0215394B1 (en) |
JP (1) | JPH0649346B2 (en) |
AU (1) | AU570707B2 (en) |
BR (1) | BR8404370A (en) |
CA (1) | CA1225856A (en) |
DE (1) | DE3470012D1 (en) |
ES (1) | ES8505582A1 (en) |
GB (2) | GB2145658B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668148A (en) * | 1985-06-27 | 1987-05-26 | Fmc Corporation | Sheet stacking and transferring device |
US4699607A (en) * | 1985-11-06 | 1987-10-13 | Fmc Corporation | Method and apparatus for producing bags |
CA1291771C (en) * | 1986-11-03 | 1991-11-05 | Rene F. Debin | Zero cycle interrupt wicket stacker |
EP0337039A1 (en) * | 1988-04-13 | 1989-10-18 | C.E.E.- Compagnie Europeenne Des Emballages Robert Schisler | Machine for handling flat articles, particularly small paper bags, at the exit of a production machine |
FR2607798B1 (en) * | 1986-12-03 | 1990-03-30 | Schisler Cie Europ Emballages | MACHINE FOR HANDLING FLAT ITEMS, ESPECIALLY BAGS OR BAGS AT THE OUTPUT OF A MANUFACTURING MACHINE |
CN102497931B (en) | 2009-09-15 | 2016-03-09 | 巴斯夫欧洲公司 | Light is dived titanium catalyst |
WO2012136606A1 (en) | 2011-04-05 | 2012-10-11 | Basf Se | Photo-latent titanium-oxo-chelate catalysts |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2150165A5 (en) * | 1971-08-17 | 1973-03-30 | Lehmacher Hans | |
GB1434394A (en) * | 1972-07-03 | 1976-05-05 | Joice R L | Stacking machine |
DE2254448A1 (en) * | 1972-11-07 | 1974-05-22 | Windmoeller & Hoelscher | METHOD AND DEVICE FOR THE PRODUCTION OF BAG BLOCKS FROM THERMOPLASTIC PLASTIC |
DE2302477C3 (en) * | 1973-01-19 | 1981-03-26 | Stiegler GmbH Maschinenfabrik, 73635 Rudersberg | Device for conveying a stack made up of foil-shaped sections |
DE2526014C2 (en) * | 1975-06-11 | 1988-04-14 | Hans 5216 Niederkassel Lehmacher | Process for the manufacture of side-welded carrier bags in pairs |
BE885414A (en) * | 1980-09-26 | 1981-03-26 | Fmc Europe | DEVICE FOR STACKING PLASTIC BAGS |
US4500307A (en) * | 1981-10-23 | 1985-02-19 | Bridgeman Danial N P | Apparatus for producing continuous bags of thin wall material |
-
1984
- 1984-08-03 AU AU31475/84A patent/AU570707B2/en not_active Ceased
- 1984-08-13 EP EP86112290A patent/EP0215394B1/en not_active Expired
- 1984-08-13 DE DE8484305500T patent/DE3470012D1/en not_active Expired
- 1984-08-13 EP EP84305500A patent/EP0134711B1/en not_active Expired
- 1984-08-13 GB GB08420542A patent/GB2145658B/en not_active Expired
- 1984-08-16 CA CA000461154A patent/CA1225856A/en not_active Expired
- 1984-08-31 JP JP59180838A patent/JPH0649346B2/en not_active Expired - Lifetime
- 1984-08-31 BR BR8404370A patent/BR8404370A/en not_active IP Right Cessation
- 1984-08-31 ES ES535585A patent/ES8505582A1/en not_active Expired
-
1986
- 1986-08-22 GB GB08620452A patent/GB2179887B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BR8404370A (en) | 1985-07-30 |
GB2179887A (en) | 1987-03-18 |
GB2145658B (en) | 1988-06-29 |
JPS6076331A (en) | 1985-04-30 |
AU570707B2 (en) | 1988-03-24 |
ES535585A0 (en) | 1985-06-01 |
CA1225856A (en) | 1987-08-25 |
EP0134711A2 (en) | 1985-03-20 |
GB8620452D0 (en) | 1986-10-01 |
GB2179887B (en) | 1988-06-15 |
AU3147584A (en) | 1985-03-07 |
EP0215394B1 (en) | 1989-11-23 |
JPH0649346B2 (en) | 1994-06-29 |
ES8505582A1 (en) | 1985-06-01 |
GB2145658A (en) | 1985-04-03 |
EP0215394A1 (en) | 1987-03-25 |
EP0134711A3 (en) | 1985-04-17 |
DE3470012D1 (en) | 1988-04-28 |
GB8420542D0 (en) | 1984-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4758214A (en) | Twin wicketing bag machine | |
CA1161679A (en) | Method and apparatus for producing plastics bags | |
US4699607A (en) | Method and apparatus for producing bags | |
US4181069A (en) | Method for producing double streams of side-welded bags in heat-welded pad form | |
DE2245198C3 (en) | Bag making machine | |
EP0310306A1 (en) | Form-fill-seal machine for automatic production of sealed packages | |
US4693701A (en) | Twin wicketing bag machine | |
US4386924A (en) | Handle bag making apparatus | |
EP0912395A2 (en) | Apparatus and methods for producing shrink wrap packaging | |
US3751875A (en) | Apparatus for filling, sealing and dispensing bags | |
WO1998000336B1 (en) | Apparatus and methods for producing shrink wrap packaging | |
EP0134711B1 (en) | Twin wicketing bag machine | |
US6010122A (en) | Method and apparatus for producing high page count signatures | |
EP0778207B1 (en) | Cutting device for trimming printed paper packages in a packaging machine | |
EP0891938B1 (en) | Stacking machine and method | |
US7032360B2 (en) | Apparatus and methods for producing shrink wrap packaging | |
US4735602A (en) | Bag stacking method and apparatus | |
US7922640B2 (en) | Machine for making bags | |
GB2089286A (en) | Manufacture of thermoplastic bags | |
CA1245236A (en) | Bag stacking method and apparatus | |
EP0077843B1 (en) | Handle bag making apparatus | |
WO2001066342A1 (en) | Improved wicketed and wicket-less bag blocks | |
WO2005032809A1 (en) | Plant and method for manufacturing padded envelopes | |
JP2004345021A (en) | Strip-shaped food manufacturing device | |
JPH0319148B2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB IT |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19850830 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
ITF | It: translation for a ep patent filed | ||
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE FR GB IT |
|
REF | Corresponds to: |
Ref document number: 3470012 Country of ref document: DE Date of ref document: 19880428 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20000807 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20000809 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20000811 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20001025 Year of fee payment: 17 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010831 |
|
BERE | Be: lapsed |
Owner name: FMC CORP. Effective date: 20010831 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20010813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020501 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |