EP0105191A2 - Dispositif de découpe pour des bandes flexibles - Google Patents
Dispositif de découpe pour des bandes flexibles Download PDFInfo
- Publication number
- EP0105191A2 EP0105191A2 EP83108559A EP83108559A EP0105191A2 EP 0105191 A2 EP0105191 A2 EP 0105191A2 EP 83108559 A EP83108559 A EP 83108559A EP 83108559 A EP83108559 A EP 83108559A EP 0105191 A2 EP0105191 A2 EP 0105191A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- material web
- swivel arm
- web
- stop
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0495—Making and using a registration cut
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/343—With means to deform work temporarily
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/525—Operation controlled by detector means responsive to work
- Y10T83/538—Positioning of tool controlled
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8742—Tool pair positionable as a unit
Definitions
- the invention relates to a device for the precise introduction of a cut into a web of flexible material, with a lower knife and an upper knife rotatably articulated thereon, at least one of which is driven, and with a feed device for the material web.
- the object of the present invention is therefore to create a device for the precise introduction of a cut into such a web according to the type described at the outset, with which the accuracy of the interface can be achieved and maintained with simple means.
- both the upper knife and lower knife are arranged on a swivel arm which can be moved by a control device, and that the control device cooperates with the material web to be cut in such a way that the interface is detected by the control device and in a movement of the Swivel arm is transmitted.
- the material web itself therefore has properties by means of which the control device immediately recognizes the location for making the desired cut. If the control device has detected the desired interface, the cutting device, which is arranged on a movable swivel arm, is brought by the latter to the desired interface.
- control device has a pneumatic cylinder with a movable piston which is articulated at one end of a control arm, that at the other end the articulated arm is articulated at its end, while at least one knife is attached to the other end of the articulated arm , and if the lever of the control arm is significantly smaller than that of the swivel arm.
- a pneumatic cylinder instead of a pneumatic cylinder, a solenoid, an electrical control device or a hydraulic cylinder can of course also be used in practice, however, the use of a pneumatic cylinder has proven to be robust, simple and reliable.
- the swivel arm is therefore connected to this pneumatic cylinder via a control arm, with a lever ratio such that the swivel arm with the knives attached to it is considerably longer than the control arm.
- the force of the pneumatic cylinder which ultimately acts on the knives, can be kept low without impairing the speed of movement of the swivel arm and its precise control.
- This small force ultimately acting in the cutting knives has the advantage that when the material web to be cut interacts on the one hand and the control device via the swivel arm on the other hand, the swivel arm to be controlled itself can be used as a sensing device, because a material web to be cut blows out of thin material in no way , Deformations, indentations or compressions.
- the pneumatic cylinder therefore only needs to receive a simple pilot control, which it puts on the swivel arm and at the same time receives control signals from it.
- the invention is further embodied in that for the interaction of the material web and the control device on the material web, a stop is provided for a system of the swivel arm, which can be moved away from the control device and can be pivoted towards the stop before the cut into the stop.
- the stop on the material web can be created in a variety of ways. A wide variety of influences or treatments or changes in the material web take place in a continuous or intermittent machine. For example, in the case of an intermittently operating machine, an incision in the material web and an at least partial elevation of the material can take place before or after the incision in the conveying direction of the material web, so that this already gives a stop.
- the control device can then by the measures according to the invention on the swivel arm of such Mark the marked material web signals from the marking and then set up the measures to be taken.
- the swivel arm is first moved away from the stop before the activity provided according to the invention, ie before the exact introduction of the cut, and then - preferably after reversing the direction of movement - is pivoted towards the stop. If, for example, the upper knife, the lower knife or both knives engage the stop on the material web, then the swivel arm is stopped, be it by the stop on the material web or by a control command in the control device, then the knife can immediately take action and Make the desired cut exactly where you want it.
- the stop on the material web is formed by at least one incision in the material web and folding it along at least one crease line running in the conveying direction of the material web.
- this overall tube which corresponds to the length of the material web, must ultimately be divided or separated to form individual packs.
- a stop for the swivel arm according to the invention must have an edge transversely to the conveying direction of the material web, the folding should also take place transversely to the conveying direction of the material web, ie around a crease line in the conveying direction of the material web.
- the device according to the invention can be used particularly advantageously for separating partially cut, connected tube pieces which are formed from a coated paper web.
- a tube, hose or tube has the shape of a circle in cross section in the finished state.
- the stop in the material web can now be obtained particularly simply and advantageously when making partial incisions in such a tube in that the creasing lines which run along the tube surface lines are not arranged exactly on diametrically opposite sides. If you put a plane through the crease lines of such a tube or tube in your thoughts, then according to the teaching of the invention, this plane should not run exactly through the center line (or the center point of the circle), but should be somewhat eccentric to it.
- one path comes closer to the shape of a plane than the other, because viewed in cross-section, it is not halves of equal length but sections of unequal length .
- this is a section, e.g. the longer section seen in cross section, cut, and the short section, already lying in one plane, uncut. Then these tube pieces hang together along the flat part and are cut along the partially curved, longer section. To separate the last cut must then be made exactly under the existing cuts.
- the device of the type described above offers, so to speak, a "searching knife” because the knife parts attached to the swivel arm search for the stop itself and thus for the point at which the finite average for separating or separating the tube pieces is to take place.
- FIG. 1 shows schematically the lower knife 1 and the upper knife 3 pivotably articulated on the axis of rotation 2, which is attached to a swivel arm 4. In between you can see the schematic cross-section of a path formed into a tube or tube with thick lines.
- FIG. 2 the web is in the illustration tion of Figures 2 and 3 turned upside down, ie the flat side lying in cross section in Figure 1 is in Figures 2 and 3 above.
- the material web is generally designated 5 and should move in the direction of arrow 6. It consists of flexible material, in the embodiment shown in the drawings a relatively thick paper coated on both sides with plastic, as is used, for example, for the production of liquid packs. A cut 7 is to be made in this coated paper, which extends from one longitudinal edge of the flat web side to the other.
- FIG. 3 On the opposite side shown in the cross-sectional view of FIG.
- Normal milk or fruit juice packs are involved here by a length of, for example, 3 mm.
- the incision 7 In this area between the two lines 10 and 10 ', the incision 7 must ultimately be made. It should connect exactly to the two incisions 9, 9 ', so that the individual tube pieces of the total track 5 are separated at one and the same interface.
- FIG. 4 shows the top view of a flat web made of paper coated with plastic, ie flexible material, the conveying direction of which is again shown by arrow 6.
- the path shown in Figure 4 is in three Parts divided, from which three tube pieces and ultimately three packages are later formed according to the last average. From the right-hand first third of the web one can see the embossing which runs across the entire width and is generally designated 11, with the aid of which a bottom or lid of the pack can later be formed.
- Two parallel creasing lines 25 can be seen transversely to the embossing strip 11, that is to say in the conveying direction 6 of the web 5.
- the middle third of the web shown in FIG. 4 is moved to the left by a further feed in direction 6, the material web 5 is folded up along the creasing lines 25 upwards towards the viewer, the lower field shown in FIG. 4 first and then the upper one Field can be folded in or folded up. The left third is then shown in FIG. 4, again showing the overlap point 8. As a result of the incisions 9 and 9 ', the width of the material web 5 around these side panels has decreased.
- a stop 12 is formed by the material web 5 itself, this stop 12 being the most obvious Figure 7 ago going on. It is created by holding down the left tube part shown in FIG. 7 and keeping the tube part lying to the right of the upper knife 3 free or popping open.
- FIGS. 5 and 6 The inventive idea of how the cross-section of the tube shown in FIGS. 1 and 2 can be achieved is to be explained beforehand with reference to FIGS. 5 and 6.
- the cross section of the tube is shown as a circle in FIGS. 5b and 6b.
- the creasing lines 25 are to be located, which run transversely to the plane of the paper and are therefore practically not visible in FIGS. 5 and 6. If an imaginary plane is laid through the creasing lines, the plane 14 shown in FIGS. 5b and 6b and shown by a dashed line is obtained.
- the material web 5, driven by drive rollers 16, runs from left to right into the cutting device in the conveying direction of arrow 6.
- the left tube part already provided with the incisions 9 and 9 ' is held down by the feed rollers 16, i.e. in the flattened state, as can be seen at the point of engagement of the two feed rollers 16.
- the holder 18 for the feed rollers 16 but also the holder 19 for a pneumatic cylinder 20 with a piston 21 are attached to the carrier 17.
- the piston 21 is articulated on the left end 23 of a control arm 24, while the latter can be pivoted about an axis of rotation 26 provided on its right end 25.
- the swivel arm 4 is also pivotably articulated about this axis of rotation 26, which in the illustration in FIG. 7 is suspended downward and is connected at its lower end 27 to the upper knife 3 and via the articulation point 2 (FIG. 1) to the lower knife 1.
- Swivel arm 4 and control arm 24 consist of a rigid piece. From FIG. 7 it can be seen how the right edge of the upper knife 3 is brought into abutment against the stop 12 of the right part of the material web 5. In this state, the cut 7 can be made in the flat surface of the material web 5, the cut 7 then certainly being precisely aligned with the cuts 9, 9 '.
- FIG. 8 shows the top view of the part of the cutting device shown in FIG. 7, the upper part here Feed roller 16 and the material web 5 with the overlap point 8 and the incisions 9, 9 'can be seen.
- the upper knife 3 and swivel arm 4 are omitted, so that only the lower knife 1 and its articulation point 2 for the upper knife can be recognized.
- the tube piece is bulged to the right of the stop designated by 12, so that it has the cross-sectional state according to FIG. 2 on the left or 6a, while to the left the tube piece is still relatively compressed under the feed rollers 16.
- the cutting device works in such a way that the swivel arm 4 is pivoted to the left about the axis of rotation 26 in the direction shown in FIG. to immediately turn right again, ie in Figure 7 counterclockwise, at a speed that is greater than the conveying speed of the material web 5.
- the swivel arm 4 can then move with its upper knife 3 against the material web having incisions 9, 9 ', which is stopped in the state of FIG. 7 by control means (not shown).
- the force of the pneumatic cylinder is so weak about the ratio of the short lever of the control arm 24 above and the long lever of the swivel arm 4 below that when the upper knife 3 approaches the stop 12, the latter is not damaged. Due to the small force acting in the upper knife 3, the swivel arm 4 is stopped in the position shown in FIG. 7, and then the control signal for making the incision 7 takes place.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Making Paper Articles (AREA)
- Replacement Of Web Rolls (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Adhesive Tape Dispensing Devices (AREA)
- Treatment Of Fiber Materials (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83108559T ATE34935T1 (de) | 1982-09-07 | 1983-08-31 | Schneidvorrichtung fuer eine flexible bahn. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3233097 | 1982-09-07 | ||
DE19823233097 DE3233097A1 (de) | 1982-09-07 | 1982-09-07 | Schneidvorrichtung fuer eine flexible bahn |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0105191A2 true EP0105191A2 (fr) | 1984-04-11 |
EP0105191A3 EP0105191A3 (en) | 1985-05-22 |
EP0105191B1 EP0105191B1 (fr) | 1988-06-08 |
Family
ID=6172584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83108559A Expired EP0105191B1 (fr) | 1982-09-07 | 1983-08-31 | Dispositif de découpe pour des bandes flexibles |
Country Status (9)
Country | Link |
---|---|
US (1) | US4548110A (fr) |
EP (1) | EP0105191B1 (fr) |
JP (1) | JPH0659962B2 (fr) |
AT (1) | ATE34935T1 (fr) |
AU (1) | AU565480B2 (fr) |
CA (1) | CA1205373A (fr) |
DE (2) | DE3233097A1 (fr) |
ES (1) | ES8500845A1 (fr) |
SU (1) | SU1268098A3 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0638665Y2 (ja) * | 1988-05-10 | 1994-10-12 | 日本テトラパック株式会社 | 包装用ウエブの切断装置 |
US5433816A (en) * | 1993-01-15 | 1995-07-18 | Eastman Kodak Company | Ultrasonic apparatus for forming individual pillowed chips of light lock material |
JP3679485B2 (ja) * | 1996-01-17 | 2005-08-03 | 富士写真フイルム株式会社 | ウエブのカール測定方法および装置、カール修正方法および装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638038A (en) * | 1946-10-03 | 1953-05-12 | A Kimball Co | Machine for marking tags of different styles |
US2725101A (en) * | 1949-04-15 | 1955-11-29 | New Jersey Machine Corp | Feeding and cutting device for printed labels |
US3435717A (en) * | 1965-05-24 | 1969-04-01 | Consolidated Lithographing Cor | Label feed and cutting means |
US4214492A (en) * | 1978-12-26 | 1980-07-29 | Hoffman Thomas M | Method and apparatus for cutting clips off of the ends of sausages and the like |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1022491A (en) * | 1962-01-20 | 1966-03-16 | Zahnradfabrik Friedrichshafen | Improvements in or relating to hydraulic control devices for agricultural implements |
US4046039A (en) * | 1976-05-05 | 1977-09-06 | Emf, Inc. | Thickness responsive variable position die set |
US4375175A (en) * | 1981-05-26 | 1983-03-01 | Nemo Industries, Inc. | Towel cutting machine |
-
1982
- 1982-09-07 DE DE19823233097 patent/DE3233097A1/de active Granted
-
1983
- 1983-08-31 DE DE8383108559T patent/DE3376965D1/de not_active Expired
- 1983-08-31 AT AT83108559T patent/ATE34935T1/de not_active IP Right Cessation
- 1983-08-31 EP EP83108559A patent/EP0105191B1/fr not_active Expired
- 1983-09-06 ES ES525411A patent/ES8500845A1/es not_active Expired
- 1983-09-06 AU AU18732/83A patent/AU565480B2/en not_active Ceased
- 1983-09-06 JP JP58162692A patent/JPH0659962B2/ja not_active Expired - Lifetime
- 1983-09-06 CA CA000436084A patent/CA1205373A/fr not_active Expired
- 1983-09-06 SU SU833645096A patent/SU1268098A3/ru active
-
1985
- 1985-03-05 US US06/708,307 patent/US4548110A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638038A (en) * | 1946-10-03 | 1953-05-12 | A Kimball Co | Machine for marking tags of different styles |
US2725101A (en) * | 1949-04-15 | 1955-11-29 | New Jersey Machine Corp | Feeding and cutting device for printed labels |
US3435717A (en) * | 1965-05-24 | 1969-04-01 | Consolidated Lithographing Cor | Label feed and cutting means |
US4214492A (en) * | 1978-12-26 | 1980-07-29 | Hoffman Thomas M | Method and apparatus for cutting clips off of the ends of sausages and the like |
Also Published As
Publication number | Publication date |
---|---|
DE3233097A1 (de) | 1984-03-08 |
ES525411A0 (es) | 1984-11-01 |
AU1873283A (en) | 1984-03-15 |
ATE34935T1 (de) | 1988-06-15 |
JPS59118658A (ja) | 1984-07-09 |
DE3376965D1 (en) | 1988-07-14 |
CA1205373A (fr) | 1986-06-03 |
EP0105191A3 (en) | 1985-05-22 |
DE3233097C2 (fr) | 1987-07-02 |
AU565480B2 (en) | 1987-09-17 |
SU1268098A3 (ru) | 1986-10-30 |
JPH0659962B2 (ja) | 1994-08-10 |
ES8500845A1 (es) | 1984-11-01 |
US4548110A (en) | 1985-10-22 |
EP0105191B1 (fr) | 1988-06-08 |
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