FI104163B - Apparatus and method for cutting and winding a paper web - Google Patents

Abstract

System for cutting a travelling web (20) of paper being wound on a spool (24) and transferring the cut edge to an empty spool (27) to continue the winding; including a drive roll (36), a cutting tape (33); an applicator (46-50) applies a short length of adhesive, a sensor (51, 52) determines the passage of the forward end of the tape (33), another sensor (53, 55) detects the adhesive, a brake (59) clamps the tape, a cutter (41) cuts the tape to an appropriate length to perform the operation of cutting the web (20), and a guideway switch (65, 66) shunts off to a waste collection area a length of cutting tape (33) having no adhesive on its forward end.

Description

104163

Apparatus and method for cutting and winding a paper web. -Anordning och förfarande för kapning och lindning av pappersbana.

The invention relates to a device and method for cutting a moving paper web 5 to be wound onto a first reel and for transferring an incoming web to an empty reel for continuous machine reeling.

U.S. Patent Nos. 4,659,029; 4,757,850; and 4,783,018 represent the most relevant state of the art to the present invention. These patents disclose 10 how the cut-off tape can be passed through a guide web underneath a movable web of paper having a width of perhaps 10 -20 feet or more, and how the cut-off tape is attached to the far side of an empty coil while remaining close to the coil. These patents teach the use of mechanical arms to receive the truncated end 15 of the ribbon provided with an adhesive on the ribbon, and to push the truncated end into contact with the empty coil, which wraps the ribbon helically around the coil, thereby cutting off the paper web and wraps around the empty coil. Handling difficulties have arisen in expressing the need to handle errors such as failure to apply sufficient amount of adhesive 20 to the tape, which in turn means that the tape itself does not attach properly to the empty reel and therefore does not cut and move the moving paper web. on an empty coil. In modern high-speed facilities, it is vital that all such errors are dealt with quickly and efficiently.

25

The object of the present invention is to provide an improved system for mobile communication. for cutting and winding paper webs.

* The present invention provides, in one aspect, an apparatus for cutting a moving paper web to be wound onto a first reel and for transferring the web to an empty reel for continuous machine reeling by attaching an offset reel extending from the guide chute to a remote end adjacent to an empty end of an empty 2 104163 coil, the guide chute extending transversely below the web and having a longitudinal slot substantially upwardly r toward the web or coils, the tape having a front cut off end portion coated with adhesive for a short distance its center portion, leaving 5 edges free of adhesive, with the web slidably supported in the guide trough along the edges free of adhesive, the pushing member in front of the endless strip stock in front of the endless tape stock for passing through the guide chute and through the application member for applying adhesive to the truncated tip portion along the central portion of the tape while leaving the 10 strip edges free of adhesive, means for cutting the tape from the endless end of the tape stock, and in a nipple, characterized in that the device further comprises: adjacent a probe near the probe to detect the presence of adhesive on the truncated tip portion; and 15 means adjacent the proximal end to guide the strap toward the distal end of the guide chute when the detector detects the presence of adhesive on the truncated tip portion.

Preferred embodiments of the device according to the invention allow the user of the cutting and winding step 20 to perform all necessary operations in preparing the cutting tape for use and sending it to the far side of the empty coil without actually having to move its controls near the coil.

Preferred additional features include: means for directing the cutting tape into a storage space for temporarily maintaining a large tape length; means for selectively engaging the guide chute to guide the cut-off strip to the collection area of the scrap or toward the far end of the guide chute; a final pushing member for moving the truncated tip adjacent the distal end to contact the empty coil; and the braking means selectively locking the tape into the guide channel so that a tape loop is formed. Preferably, means for cutting the tape are disposed between the feed source and the adhesive application means.

3, 104163

In some preferred embodiments of the invention, the device includes means for physically removing a portion of the guide chute, thereby allowing a loop to be formed while being simultaneously attached to the guide chute at the front end of the loop. A preferred adhesive applicator includes a release tape attached to a two-sided contact adhesive tape and roll members for securing a portion of the adhesive tape to the front end of the cutting tape.

Another particular embodiment includes a functional coupling between the presence or absence of the adhesive tape on the cut-off strip detector and the switch 10 which directs to the wreckage collection area any tape that does not contain adhesive tape attached thereto. Likewise, preferably, the distal end of the guide chute will end up endlessly adjacent to the empty coil, and the pusher members are adjacent to the end near the guide chute to extend the tip of the ribbon to the empty coil nip without the aid of a mechanical arm.

15

In another and alternative embodiment, the invention provides a method of making a tape for use in cutting a moving paper web which is machine-wound onto a reel, and for transferring the web to an empty reel for continuous machine-rewinding, which comprises the steps of: moving sufficient tape from a storage space to a guide ; applying adhesive close to the adjacent side of the tape underside of the central portion adjacent its far end so that the tape may be supported along its side edges by the guideway during its movement after the adhesive 25 applied, the method being characterized by the steps of: (a ) detecting the tape after application of the adhesive to the tape to ensure correct application of the adhesive; and (b) pushing the ribbon from a position adjacent to the adjacent side to cause the ribbon and adhesive to adhere to the empty reel such that the truncated paper web 30 is moved and rolled over the empty reel.

The following invention will be described in detail by way of example only, with reference to the accompanying drawings, in which: 4,104,163

Figure 1 is a schematic perspective view of an embodiment of the device of the present invention,

Figure 2 is an enlarged schematic elevational view of the control mechanism of the device of Figure 1,

Figure 3 is a cross-sectional view taken along line 3-3 of Figure 1 or 2; and Fig. 4 is a cross-sectional view taken along line 4-4 in Fig. 2.

The general features of the present invention will be best seen and understood with reference to Fig. 1, which shows a general type of equipment used in a papermaking plant for wrapping paper to be rolled for storage and use elsewhere. The continuous paper web 20 moves at a relatively high speed to a combination of coils upon which the paper is rolled. Paper web 20 advances toward the drive roller 21, which is mounted in bearings Brackets 22, leading web 20 over the drive roller 23 and reeling in I reel 24 around which rotates in the direction of the arrow 25. The drive pulley 23 rotates in the direction of arrow 26 and pressed against the paper roll 20 on the reel 24, causing it to rotate in the direction indicated. When the coil 24 is filled to the desired capacity with paper Tainasta 20, it is necessary to cut web 20 laterally, transfer the cut edge to an empty spool 27, and start the web winding on that spool in the direction of the arrow 28 to produce another filled spool, such as spool 24.

The empty reel 27 is positioned vertically above the position shown in Fig. 1 until it is ready to receive the paper from web 20 and begin to wind it. The reel 27, which may or may not be individually rotated, as known in the art, is lowered until it contacts and rotates the drive roller 23 as shown in Figure 1. The paper web 20 is then cut 30 and the leading edge of the web 20 is wrapped around an empty reel it may continue to wind the web 20 until this coil is ready to be replaced by another empty coil. In accordance with the present invention, as in the aforementioned patents of the Applicant, the web 20 is cut by passing the cutting tape 33 5 104163 at its tip 34 to the nip 29 of the empty roll 27 and drive roll 23 at the distal end of the rolls. 27 and automatically convey web 20 to reel 27 to continue wrapping web 5 20 thereon. The cutting tape 33 is guided from a nearby end 32 to a distant end 31 in a guide chute 30 which passes below the movable web 20. In the present invention, the tip 34 of the ribbon 33 is guided adjacent to the exit of the guide chute 30 at a distant end 31 and stopped there to wait for a convenient moment to be moved to the pushing nip 29. The final movement of the rope 34 to the nip 29 the primary arms using the limit switch, or it may be implemented by the user using the switch. An important feature of the present invention is that all of the controls, functions, and checkpoints are located near the end 32 of the reels 21,23,24, and 15 27 so that the user is not forced to pass a plurality of feet below or above the movable paper web 20. to cause the paper web 20 to be cut off and the web to begin to wrap on the reel 27.

The basic features of the present invention are controllers, sensors and actuators on the side 32 of the reels and paper web 20. These are "shown relative to each other in Figures 1 and 2. The cutting tape 33, as described in the preceding patents, consists of a plurality of parallel wound filament fibers. stored 25 on a large feed coil 35, from which it is led to the inlet 40 of the guide chute 30 and led to a top secret T-groove as shown in Fig. 3, where T is removed. the friction arms 73 form a guide to the cutting tape 33 and the leg 74 of the T is an opening extending in the longitudinal direction of the guide chute 30. A shallow recess 75 along the bottom of the transverse arms 73 is connected to the guide chute so that the corresponding portion of the cut-off strip 33 above this recess can be coated with adhesive and is not in contact with the guide chute 30. It can be seen that the cut-off strip 33 is supported in its movement by the side edges of the strip at the lateral edges of the transverse branch portion 73. The ribbon 33 is sufficiently rigid 6 104163 to bridge this recess 75 and that no friction resistance problems occur as the ribbon 33 moves through the guide chute 30.

The ribbon 33 of the feed roller 35 runs between the rollers 36 and 37 and is pushed by the drive roller 36 with the ribbon 33 pressed against it by the pressure roller 37. The pressure is applied by means of a lever member 38 mounted on a pneumatic cylinder device 39 which causes the roller 37 to be pressed against the roller 36. The roller 36 is rotated by means not shown, such as a shaft driven by a pulley and a belt from the motor. The ribbon 33 protrudes into the guide slot 10 at the inlet 40 inside the T slot as described above, and its presence is detected by a photoelectric sensor 40 '. If no tape is present, the user will change the feed roller and / or start it between rollers 36 and 37. The ribbon 33 is pushed transversely across the far side 31 to the end of the guide chute 30 so that the truncated tip 34 is about 3 inches from the nip 29 of the detector 29. The detector 77 detects that the truncated tip 34 has passed and provides a signal to the brake cylinder 60 and loop gate cylinders 57. Alternatively, the sensor 77 may be omitted and the pressure roller 37 adjusted so as to rotate a selected number of turns and rotation portions measured by roller 37 at evenly spaced alignment marks 79 that pass sensor 20, thereby pushing the truncated tip 34 accurately at a position nip 29. The brake discs 59 facing each other on each side of the belt 33 are pressed together by a pneumatic cylinder member 60 to prevent any further movement of the belt 33 toward the distal side 31. The pneumatic cylinder 57 is used to cause the T-groove 56 in the guide groove 30 to retract. below the opening 58. This storage space is defined by the guide walls 69 and allows the large loop 70 of the ribbon 33 to hang down, as shown in Figure 2. The drive roller 36 continues to push the ribbon 33 into the inlet 40 to cause the loop 70 to form.

The pressure roller 37 is calibrated to rotate a given number of revolutions so as to push the length of the selected ribbon 33 and then to stop automatically. When the drive roller 36 stops, the guillotine cutter 41 is actuated by pneumatic cylinder 42 to cut through the ribbon 33 thereby forming the length of the selected ribbon 33 from the cutter 41 to a cut-off tip 34 for use at a convenient time, which may be selected by the user which is actuated by moving the empty coil 27 to a position to receive the web 20.

When the user is finished, cylinder 64 is actuated by moving lever 63 to cause the press roll 62 to press the band 33 against the push roll 61 to rotate the selected amount. A preferred procedure is the use of the rack 81 and pinion 83 combination, wherein the selected gear shift 81'lineaarinen movement through 82 of the support bearing causes the gear 83 to rotate and rotate 10 of the roll 61 direction of arrow 78 to push cut end 34 forward until it is caught in nip 29. As soon as the roll 61 rotation is complete, the brake discs 59 are pressed together to form a resistance to movement of the band 33 in the guide chute 30. The band 33 is wound helically around the empty coil 27 and pulled tight by the resistor 15 formed by the brake 59. This causes the ribbon 33 to cut off the paper web 20 and guide the cut edge to the reel 27 for winding.

Once the paper web 20 is securely and securely secured to the reel 27 and is wound therewith, the user provides for the initiation of a new operation step 20 which results in another length of ribbon 33 being ready to be fed to nip 29 for cutting web 20 and initiating a new reel 27.

Operations at the truncated tip 34 begin as it passes the adhesive dispensing roller 46, wherein a simple length, for example 3-4 inches, of double-sided contact tape on the feed roller 48 from the feed roller 47 passes under the strip 33 25 and is pressed against the strip 33 lever 44 actuated by pneumatic cylinder member 45. Two-. ; the length of the half adhesive tape 48 is secured to the tape 33 and at the same time the release liner 49 is peeled off the adhesive tape and wound on the winding roll 50. As the truncated tip 34 moves forward, it is identified by a roll 30 51 which transmits a signal from sensor housing 52 to pneumatic rise slightly from tape 33 so that it does not exert any additional pressure on tape 33 on the application roller 46 and thereby attaches only one adhesive tape to a length of 1041033. The cut off tip 34 of the tape then passes over a sensor roll 53 having a metal surface or other surface, which tends to adhere to the adhesive on the contact adhesive tape applied by the roller 46 on the bottom of the strip 33. Passing the length of the double-sided adhesive tape causes the sensor roll 5 to rotate and thereby rotate the arm 54 in a circle passing near the magnetic switch 55. This operation causes a signal to be transmitted to the pneumatic switch 66 which uses the guide chute guide switch 65 to hold it open for the ribbon 33 to travel directly through portion 72 toward the far side 71. If for any reason, the truncated tip 34 does not have adhesive tape length which causes the sensor roll not to rotate, no signal is transmitted to the pneumatic switch 66 and the guide chute control switch 65 is thereby positioned to cause the ribbon 33 to extend outwardly about 10 inches through portion 71 and await user selection for manual application of adhesive tape or collection area. If there is no adhesive in the truncated tip 34 of the tape, it does not attach to the empty reel 27 and does not cut the paper web 20. If all is well, the adhesive tape portion is in the truncated tip 34, the tape 33 advances to the far side 31 to stop the movement of the ribbon 33, the guide period 20 56 is removed, the loop 70 is formed and the cutter 41 cuts the ribbon 33 to complete the phase.

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It should be understood that many of the component parts of the system of Figure 2 may be replaced by parts other than those mentioned above. The pneumatic cylinders 39, 25 42, 45, 57, 60, 64 and 66 could be hydraulic cylinders, solenoids or other linear motion devices. The adhesive application system of rollers 43, 46, 47, and 50 could be replaced by an adhesive spray system, or * adhesive roll-on systems as described in U.S. Patent No. 4,783,018. Detection devices 51, 52, 53, 54 and 55 could be replaced by beam or x-ray beam cut-off systems or similar detectors known in the art. The operation of the levers 38, 43 and 63 could be spring-bent so that it automatically adopts one position and is displaced by respective pneumatic cylinders in one direction only from the two positions. Correspondingly, the control switch 65 of the 9104163 could be spring-flexed to be automatically in one position and moved to another position only when a signal is given to it.

While the invention has been described with respect to certain specific embodiments, it is to be understood that many modifications and modifications may be made by those skilled in the art without departing from the spirit of the invention. Therefore, it is intended that the following claims cover all such modifications and modifications as are within the real spirit and scope of the invention.

10 • «*« 9 ·?

Claims (14)

Device for cutting off with a tape (33) a running paper web (20) during winding on a first coil (24) and for transferring the web (20) on an empty coil (27) for continued machine winding by the distal end (31) of an empty coil (27) attaches to a cutting band (33) emerging from a guide channel (30), the tape being measured from a storage and processing area (32) adjacent the closer end (32) of the empty the coil (27), wherein the guide channel (30) extends transversely below the web (20) and has a longitudinal slit 10 (74) directed substantially upright against the web (20) or the coils (24, 27), the strip (33) has a forward cut end portion (34) coated with glue (48) over a short distance along its center portion and the edges of which have been left glue-free, while the strip (33) is slidably supported in the guide groove (30) along the edges (73). free from glue (48), a drive means (36) for feeding the cut front end portion (34) from an endless strip layer (35) through the guide channel (30) and through a spreading means (46,47,43) intended for spreading glue (48) over the cut end part (34) along the middle part of the strip (33) so that the edges of the strip are left glue-free, means (41) is provided for cutting the band (33) in front of the endless band layer (35) and means (61) for moving the cut end portion (34) forward from the adjacent distal end (31) into contact with the empty coil ( 27) in a nip (29), characterized in that the device further includes:. a sensor (53, 54) adjacent the closer end (32) to detect the presence of the adhesive (48) on the cut end portion (34); and means (65) adjacent the closer end (32) to guide the band (33) toward the farther end (31) of the guide channel (30), when the sensor (53, 54) senses the presence of glue (48) on the the cut end portion (34). «T Device according to claim 1, characterized in that the means (65) adjacent the adjacent end (22) for guiding the belt (33) also selectively guide the belt (33) to a waste collection area, when the sensor (53) does not detect the presence of the adhesive (48) on the cut end portion (34), wherein the sensor (53) is operatively coupled to the means (65) for selective control of the belt, so that in the waste collection area a belt (33) is controlled without adhesive (48). or with an insufficient amount of adhesive and analogy such that a band (33) is guided to the distal end (31) in the presence of an adequate amount of adhesive (48). Device according to claim 1, characterized in that the means (46, 47, 43) for spreading glue (48) on the cut end part (34) comprises a double-sided spreading of a short stretch of glue on the cut end part (34). ), wherein the sensor (53) is operatively coupled to the means (65) located adjacent to the adjacent end (32) for controlling the belt (33), so that in the waste collection area a belt (33) is controlled without double-sided adhesive (48) or with an insufficient amount of double-sided adhesive (48) or to allow an operator to apply adhesive (48) to the tape before such a tape (33) is guided to the more distal end (31). 4. Apparatus according to claim 1, characterized in that the sensor (53, 54) comprises a stationary magnetically operable coupling means (55) for sensing the passage of a magnetic part (54) and a roller (53) arranged to rotate freely about. the shaft (33) passing by a length of glue (48) on it due to frictional contact between the adhesive (48) and the surface of the roller (53), the roller (53) comprising the magnetic part (54) arranged to rotate together with the roller (53) to use the coupling member (55) as the roller (53) rotates the food trays more than half a revolution to ensure the presence of a sufficient length of glue (48). Device according to claim 1, characterized in that it further comprises a brake means (59,60) arranged and adapted to selectively hold the cutting band (33) and a sensor (77) at the distal end for sensing the cut end part (34) passage past the distal end (31) of the guide channel (30), the sensor (77) at the distal end being operatively coupled to the braking means (59,60) to cause the braking means (59, 60) to stop further movements as seen by the cutting belt (33) until the forward skid means (61) are driven to bring the cut end portion (34) of the belt (33) into contact with the nip (29) and its engagement via its adhesive layer (48) with the empty coil ( 27). 16 104163 Device according to claim 1, characterized in that in addition there is also means (56, 57, 59, 60) for deflecting a rear part (70) of the cutting band (33), which is attached to the cut end part (34), a storage space (69) for forming a loop (70) before the belt (33) is cut with the cutting means (41), the deflection means (56, 57, 59,60) including means (57) for slidably moving part (56) ) of the guide channel (30) so as to allow the cutting band (33) to advance towards the part (56) to form the loop (70) of the cutting band (33) which hangs down from the control channel (30) still supported by the control channel (30). ) before and after part (56). 10 Device according to claim 1, characterized in that it has a release band (49), to which a band of adhesive (48) is attached, which release band is arranged to spread the band of adhesive (48) to the cutting band (33). which release band (49) is easily detachable from the adhesive band (48). 15 Apparatus according to claim 1, characterized in that it additionally has identifying means (51, 52) next to the closer end (32) for sensing the passage of the cut end portion (34) of the cutting band (33) on the other side of the adhesive (48). spreading means (46, 47, 43). 20 Device according to claim 8, characterized in that the spreading means (46, 47, 43) of the adhesive (48) are arranged to feed glue in the form of a band of adhesive (48), and that the identification means (51, 52) for sensing the cut end (34) operatively coupled to the spreading means (46, 47, 43) of the adhesive (48) so as to spread on the cut end (34) only one length of the strip of adhesive (48) and positioning the spreading means ( 46, 47, 43) according to the length of the following cutting band: · the cutting band (33). 10. Device according to claim 1, characterized in that in addition? The braking means (59, 60) are arranged and adapted to selectively read the belt (33), the braking means (59, 60) being used immediately after the cut end (34) of the belt (33) has advanced to contact with the empty coil (27). and in a manner exert a resistor for the cutting band (33), so that this is impregnated and the paper web (20) thereby cut. 11. Device according to claim 1, characterized in that further means (5) include means (56, 57, 59, 60) for forming a loop (70) at the rear end of the cutting band (33) before measuring the cut end part (34) to contact. with the empty coil (27), the loop (70) being formed before the band (33) is cut with the cutting means (41). 10 A method of producing a tape (33) for use in cutting a forward-moving paper web (20), which web (20) is wound on a spool (24) and in transferring the web (20) to a tower spool (27). for continued machine winding, the method comprising the steps of: transferring sufficient strip (33) from a bearing roll (35) to a guide groove (30) extending from the adjacent side (32) to the further side (31) ) of the web (20); spreading adhesive (48) along the adjacent side (32) to the central portion of the underside of the belt (33) adjacent its distal end (34) so that the belt (33) can be supported along its lateral edges by means of the guide channel (30) below movement of the tape (33) after the glue (48) is spread, which method is characterized by the following steps of: (a) sensing (53, 54) the tape (33) after the adhesive (48) is spread on the tape (33) ! to ensure proper application of adhesive (48); and (b) moving (61) the strip (33) from a position adjacent the adjacent side (32) to effect adhesion of the strip (33) and the adhesive (48) to a tower coil (47) so that the cut the paper web (20) is transferred and wound on the blank spool (27). 13. A method according to claim 12, characterized in that it further comprises the step of: (c) forming a loop (70) of the band adjacent to its closer end (32) before the band (33) is cut off at its closer end (32), by temporarily removing the support portion (56) of the guide channel (30) to allow formation of the loop (70) below the guide channel. • ·