GB2141108A - Continuous feeding tape - Google Patents
Continuous feeding tape Download PDFInfo
- Publication number
- GB2141108A GB2141108A GB08412266A GB8412266A GB2141108A GB 2141108 A GB2141108 A GB 2141108A GB 08412266 A GB08412266 A GB 08412266A GB 8412266 A GB8412266 A GB 8412266A GB 2141108 A GB2141108 A GB 2141108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tape
- source
- supply
- exhaustion
- feeding
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1857—Support arrangement of web rolls
- B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
- B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
- B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
- B65H35/006—Article or web delivery apparatus incorporating cutting or line-perforating devices with means for delivering a predetermined length of tape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/31—Features of transport path
- B65H2301/312—Features of transport path for transport path involving at least two planes of transport forming an angle between each other
- B65H2301/3124—Y-shaped
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
A first tape (T1) is fed to a cutting station (5, 6) in a bookbinding or other machine by a drive arrangement comprising a capstan (3) and a pressure roller (4). At the cutting station, sections of the tape of predetermined lengths are cut off for feeding to a next workstation of the machine. When exhaustion of the first tape (T1) is detected, a standby tape drive (3', 4') is energised, so that the leading end of the standby tape (T2) reaches the cutting station at the same instant as the trailing end of the last section of the first tape (T1). Due to this arrangement, no time is lost through exhaustion of the tape supply. The leading end of the now stationary exhausted tape is retracted back from the cutting station, eg by a deflecting pin or air jet, to prevent interference with the now advancing standby tape. <IMAGE>
Description
SPECIFICATION
Continuous supply tape feeding method and apparatus
This invention relates to a method and apparatus for continuously supplying tape to a work station by switching tape sources automatically and without interruption.
There are in existence machines which supply and cut tape at fixed lengths, for example labelling machines. However, recent advancements in the speed of these kinds of machines are quite remarkable. Tape sources are exhausted more rapidly and the replacement of tape reels becomes a time consuming problem.
There are two basic barriers to faster production. Firstly, each tape source has a finite amount of tape, and when it is exhausted it must be replaced. Secondly, the increase in speed means faster tape exhaustion and more frequent tape replacement.
The method used up to now of stopping the machinery and replacing the tape source by hand is not compatible with the new high speed machines. As a result, the time required for tape source replacement has a strong negative influence on the efficiency of the present tape supply devices. This tends to negate the innovations which produce greater speed, and has obvious inflationary effects on production costs.
An object of the present invention is to alleviate these problems, by employing multiple tape sources which act as operative and standby sources, automatically detecting tape source exhaustion, and automatically switching to the standby tape source when the operative source nears exhaustion.
It is intended that this method and apparatus be fully compatible with presently existing non-continuous supply machines.
According to one aspect of the invention, there is provided a method of feeding tape uninterruptedly to a workstation, comprising feeding tape from a first source; detecting the approach of exhaustion of the tape from the first source; halting the supply of tape from the first source; and simultaneously starting the supply of tape from a second source.
According to another aspect of the invention, there is provided apparatus for feeding tape uninterruptedly to a workstation, comprising first and second tape supply sources; means to feed tape from the first source to the workstation; means to detect the approach of exhaustion of tape from the first supply source, and tape feed control means responsive to the detection to arrest the feeding of the tape from the first supply source and to initiate the supply of tape from the second supply source.
Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which
Figure 1 is a schematic diagram of apparatus in accordance with the invention,
Figure 2 is a partially sectional view of a drive roller assembly of the apparatus,
Figure 3 is a pictorial view showing a detail of the apparatus,
Figure 4 is a schematic view of one form of tape end retraction mechanism for use in the apparatus, and
Figure 5 is a schematic view of an alternative form of tape end retraction mechanism.
Referring to Figure 1 of the drawings a tape
TI, for example a label tape, from a tape source reel 1 is fed between a capstan 3 and a pressure roller 4. A spring-loaded roller 2 prevents the tape from becoming slack. The roller 4 provides pressure to maintain the tape in contact with the capstan 3, which controls the speed of feeding of the tape at a desired level. The tape is fed at a high speed between a revolving cutter 5 and an opposing fixed cutter, by which it is cut into predetermined equal lengths. The cut lengths are fed to a next station which might be, for example, a printing machine, a bookbinding machine, a labelling machine, etc.
Parallel to the basic operative tape supply mechanism is a standby supply mechanism, which has parts 1'-4' which correspond to the parts 1-4 of the operative supply mechanism.
Both operative and standby supply mechanisms share the cutting assembly 5, 6. Between the driving rollers 3 and 3' and the cutting assembly 5, 6 are located a V-shaped tape guiding block 7 and two tape guiding walls 8 and 8', respectively. The tapes, coming from the respective sources 1 and 1' and driven by the rollers 3 and 3', pass through respective guide channels created between the guide block 7 and the guide walls 8 and 8' on either side.
For each tape source there is a device (not shown) for detecting the approach of tape exhaustion. At the tail end or near the tail end of each tape is a printed mark or a hole. A light sensor detects this mark or hole and indicates that the tape is exhausted. Alternatively, adjacent each tape reel there is a light source on one side of the reel and a receiver on the other side, such that the light path between the light source and the receiver lies close to the centre of the reel. When the tape reel is full. the signal is blocked, but when the amount of tape remaining becomes sufficiently low, the light reaches the receiver unobstructed, which signals tape exhaustion.
When the operative tape source is ex-hausted, the detector sends current to start/delay devices (not shown) of the operative and standby tape sources. If the start/delay device were to halt the supply of tape from the operative source immediately, it is likely that the cutting assembly 5, 6 would not cut the last length of tape at the proper place. If, for
example, the tape supplies a printing ma
chine, the last length of tape may carry half an image instead of a full printed image. To avoid misplaced cuts, it is therefore necessary that the last length of tape be fully advanced to the cutting assembly before the driving roller 3 halts.
It is also essential that the standby tape shall properly align with the last tape length of the operative supply, and that the feeding of tape from the standby source shall begin
immediately upon the cessation of the ex
hausted supply.
Referring to Figure 2, the tape driving rollers 3 and 3' are mounted over revolving gears 31 and 31' respectively. Solenoid-operated pins 32 and 32' extend into pin holes 33 and 33' to engage the rollers 3 and 3' to the respective gears 31 and 31', or retract to disengage them. The gears under the driving rollers are constantly turning, but the rollers themselves do not turn until engaged with their respective gears. The circumference of each roller is a fixed ratio to the desired tape section length R as shown in Figure 3. The roller reaches the appropriate point (this point being predetermined by the aforesaid ratio) and the cutting demarcation line of the last tape length is aligned with the leading end of the standby tape at a position less than one tape section length from the cutting assembly.
The gear 31' of the standby tape T2 has been constantly turning, disengaged from the pin 32', with its speed matched to that of the operational gear 31. The solenoid-operated pin 32' is activated just before the tapes align, and then at the instant the tapes come level the pin 32' drops down to engage the pin hole 33' and the standby tape T2 advances, together with the last length of the operative tape. As this last length reaches the cutting assembly, the solenoid pin 32 retracts, and the operative tape supply stops. The standby supply, already in motion, continues the supply of tape to the cutting assembly.
When the operative supply tape nears exhaustion, this fact is noted by the detection device which in turn sends current to the start/delay devices of both the operative and standby supplies. When the cutting demarcation line of the last label length of the exhausted tape comes level with the leading end of the standby tape, the standby tape advances together with the operative tape. This last segment of operative tape is cut and is fed to the next station and the operative supply is halted. The lead end of the standby tape advances to continue the supply of tape to the cutting device. At this point the change-over from the heretofore operative supply to the standby supply is complete.
It will be apparent that whilst the standby tape is being fed the original tape source can be replenished, and a change-over back to that tape source from the now operative source is effected, when the latter source is almost exhausted, in exactly the same way as described above.
When the tape supply is switched from the operative to the standby source, the lead end of the now exhausted tape can be automatically withdrawn to avoid entanglement with the newly operative tape supply source. As
Figure 4 indicates, a slot is formed in the guide block 7, perpendicular to the direction of tape travel. Corresponding recesses 81 and 81' are formed in the guide walls 8 and 8'. A cylindrical pin 72, capable of left/right and right/left movement (relative to Figure 4) is located in the slot 71. When a tape supply change-over is made, the pin 72, with appropriate timing, is urged into the duct on the side of the exhausted tape, thus bending the tape and drawing the leading end of the tape back to prevent interference with the new tape.If this method of withdrawing the tape is linked to the aforementioned tape exhaustion detecting mechanism, the method and the timing by which the pin 32 or 32' is activated can be considered separately.
An alternative tape end withdrawal mechanism, as detailed in Figure 5, employs an air nozzle 9. The air nozzle is placed between the tension roller 2' and the drive roller assembly 3', 4' perpendicular to the direction of tape feed. When the exhaustion signal is activated, the pressure roller 4' is disengaged from the capstan 3', freeing the tape. At the same time, the nozzle projects air at the surface of the tape causing the tape to bend and thus withdrawing the leading end of the tape from the vicinity of the cutting assembly.
The method and apparatus of the present invention have the following advantages.
Since the present high speed tape supply machines do not incorporate an automatic tape source replacement capability, the duration of time during which the machine must be stopped while the necessary tape replacement is performed is excessive. With the present invention, the tape sources are switched over automatically and smoothly.
There is no need to halt the tape supply.
Notable increases in the production capacity of high speed tape supply machines thereby result. In addition, with the exhausted tape leading end withdrawal method, whereby the leading end of the exhausted tape is withdrawn from the cutting area when the changeover to the standby tape source is effected, the danger of the leading end of the exhausted tape becoming entangled with the new tape is nullified. Even with high speed machines, the tape can be withdrawn accurately and effectively.
The application of this method and device to paper and plastic label machines is apparent, but there are potentially numerous further applications to tapes made of fibres or sheet metal, as well as to other kinds of basic material supply machinery.
Claims (8)
1. A method of feeding tape uninterruptedly to a workstation, comprising feeding tape from a first source; detecting the approach of exhaustion of the tape from the first source; halting the supply of tape from the first source; and simultaneously starting the supply of tape from a second source.
2. Apparatus for feeding tape uninterruptedly to a workstation, comprising first and second tape supply sources; means to feed tape from the first source to the workstation; means to detect the approach of exhaustion of tape from the first supply source, and tape feed control means responsive to the detection to arrest the feeding of the tape from the first supply source and to initiate the supply of tape from the second supply source.
3. Apparatus as claimed in claim 2, wherein the workstation comprises cutting means for cutting the tape into sections of predetermined length; and wherein, in response to detection of the approach of exhaustion of the first tape, the tape feed control means advances the final section of the tape from the first supply source to the cutting means and advances the leading end of the tape from the second supply source to the cutting means in alignment with the trailing end of the final section of the tape from the first supply source.
4. Apparatus as claimed in claim 3, further comprising means to retract the end of the arrested tape from the vicinity of the cutting means to prevent interference of said end with the advancing tape from the second supply source.
5. Apparatus as claimed in claim 4, wherein the retraction means comprises means to urge a portion of the arrested tape into a recess alongside its normal feeding path.
6. Apparatus as claimed in claim 4, wherein the retraction means comprises means to project a jet of air at a portion of the arrested tape to cause it to form a loop deviating from the normal feeding path.
7. A method as claimed in claim 1 and substantially as hereinbefore described with reference to the accompanying drawings.
8. Apparatus as claimed in claim 2, and substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8504383A JPS59212356A (en) | 1983-05-17 | 1983-05-17 | Continuous tape supply device with a plurality of rolls |
JP12230183A JPS6015341A (en) | 1983-07-07 | 1983-07-07 | Continuous supply device for plurality of rolls |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8412266D0 GB8412266D0 (en) | 1984-06-20 |
GB2141108A true GB2141108A (en) | 1984-12-12 |
GB2141108B GB2141108B (en) | 1985-10-30 |
Family
ID=26426077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08412266A Expired GB2141108B (en) | 1983-05-17 | 1984-05-14 | Continuous feeding tape |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3418221A1 (en) |
FR (1) | FR2546146B1 (en) |
GB (1) | GB2141108B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599727A1 (en) * | 1986-05-24 | 1987-12-11 | Kronseder Maschf Krones | DEVICE FOR PROVIDING A STRIP MATERIAL, INTEGRATED IN A LABEL APPLICATION MACHINE |
WO1990001012A1 (en) * | 1988-07-19 | 1990-02-08 | Stork Contiweb B.V. | Device for interconnecting two webs of material |
GB2225777A (en) * | 1988-11-04 | 1990-06-13 | Nagema Veb K | Continuity of web supply |
EP0429135A1 (en) * | 1989-11-17 | 1991-05-29 | Klöckner Hänsel Tevopharm B.V. | Device for cutting pieces of sheet material continuously from a material web and feeding said pieces to a processing machine |
WO1991007340A1 (en) * | 1989-11-21 | 1991-05-30 | Long John D | Selective stock feeder |
EP0566933A2 (en) * | 1992-04-18 | 1993-10-27 | ALFILL GETRÄNKETECHNIK GmbH | Method of and device for transporting a material web |
WO2024069329A1 (en) * | 2022-09-27 | 2024-04-04 | I.M.A. Industria Macchine Automatiche S.P.A. | Machine for forming filter bags for infusion products |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1239571B (en) * | 1990-04-24 | 1993-11-08 | Panotec | DEVICE FOR THE SELECTIVE INTRODUCTION OF DIFFERENT TYPES OF CARDBOARD |
CN113651154A (en) * | 2021-07-08 | 2021-11-16 | 南通维尔斯机械科技有限公司 | Automatic candy packaging paper switching device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB465284A (en) * | 1935-11-20 | 1937-05-05 | John Crighton | Improvements relating to the supply of material in wrapping or other machines |
GB1474578A (en) * | 1973-07-24 | 1977-05-25 | Skoda Np | Device for continuous feeding of wrapping material into a packing machine |
GB1475594A (en) * | 1973-09-21 | 1977-06-01 | ||
GB1550047A (en) * | 1976-12-23 | 1979-08-08 | Honsel K | Reeling-off apparatus for sheets of material |
GB2067876A (en) * | 1979-10-23 | 1981-07-30 | Wilkes Business Forms Ltd | Mounting Device for Telephone Sets |
GB2096580A (en) * | 1981-04-09 | 1982-10-20 | Sasib Spa | Removing defective printed portions of wrapping material being fed to an automatic cutter. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1519524A (en) * | 1975-11-19 | 1978-08-02 | Agfa Gevaert | Butt splicer for butt-joining a fresh web to an expiring web |
DE3026995A1 (en) * | 1980-07-17 | 1982-02-11 | Focke & Co, 2810 Verden | METHOD AND DEVICE FOR CONNECTING PACKAGING MATERIAL LINES IN PACKAGING MACHINES |
IT1145778B (en) * | 1981-06-03 | 1986-11-12 | Gd Spa | FEEDING AND CUTTING DEVICE IN CUTS A CONTINUOUS TAPE WITH AUTOMATIC CHANGE OF THE TAPE UNWINDING REEL |
-
1984
- 1984-05-14 GB GB08412266A patent/GB2141108B/en not_active Expired
- 1984-05-16 FR FR8407610A patent/FR2546146B1/en not_active Expired
- 1984-05-16 DE DE19843418221 patent/DE3418221A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB465284A (en) * | 1935-11-20 | 1937-05-05 | John Crighton | Improvements relating to the supply of material in wrapping or other machines |
GB1474578A (en) * | 1973-07-24 | 1977-05-25 | Skoda Np | Device for continuous feeding of wrapping material into a packing machine |
GB1475594A (en) * | 1973-09-21 | 1977-06-01 | ||
GB1550047A (en) * | 1976-12-23 | 1979-08-08 | Honsel K | Reeling-off apparatus for sheets of material |
GB2067876A (en) * | 1979-10-23 | 1981-07-30 | Wilkes Business Forms Ltd | Mounting Device for Telephone Sets |
GB2096580A (en) * | 1981-04-09 | 1982-10-20 | Sasib Spa | Removing defective printed portions of wrapping material being fed to an automatic cutter. |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599727A1 (en) * | 1986-05-24 | 1987-12-11 | Kronseder Maschf Krones | DEVICE FOR PROVIDING A STRIP MATERIAL, INTEGRATED IN A LABEL APPLICATION MACHINE |
WO1990001012A1 (en) * | 1988-07-19 | 1990-02-08 | Stork Contiweb B.V. | Device for interconnecting two webs of material |
US5207859A (en) * | 1988-07-19 | 1993-05-04 | Stork Contiweb B.V. | Device for interconnecting two webs of material |
GB2225777A (en) * | 1988-11-04 | 1990-06-13 | Nagema Veb K | Continuity of web supply |
EP0429135A1 (en) * | 1989-11-17 | 1991-05-29 | Klöckner Hänsel Tevopharm B.V. | Device for cutting pieces of sheet material continuously from a material web and feeding said pieces to a processing machine |
WO1991007340A1 (en) * | 1989-11-21 | 1991-05-30 | Long John D | Selective stock feeder |
EP0566933A2 (en) * | 1992-04-18 | 1993-10-27 | ALFILL GETRÄNKETECHNIK GmbH | Method of and device for transporting a material web |
EP0566933A3 (en) * | 1992-04-18 | 1995-05-31 | Alfill Getraenketechnik | Method of and device for transporting a material web. |
WO2024069329A1 (en) * | 2022-09-27 | 2024-04-04 | I.M.A. Industria Macchine Automatiche S.P.A. | Machine for forming filter bags for infusion products |
Also Published As
Publication number | Publication date |
---|---|
GB8412266D0 (en) | 1984-06-20 |
FR2546146A1 (en) | 1984-11-23 |
GB2141108B (en) | 1985-10-30 |
FR2546146B1 (en) | 1987-07-17 |
DE3418221A1 (en) | 1984-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990514 |