JP2009078890A - Automatic splicing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem in a conventional automatic splicing device wherein a roller continues to rotate due to its inertia without stopping instantaneously after transmission of rotating power with respect to the roller is stopped after completion of splicing, and thus, along with the rotation of the roller due to the inertia after completion of the splicing, a paper sheet or a film remaining on the roller after completion of the splicing is delivered even after the splicing is completed. <P>SOLUTION: In this rotary automatic splicing device, a roll-shaped paper sheet or film journaled to one roller is paid out and splicing is continuously performed from the roll-shaped paper sheet or film on the one roller to a roll-shaped paper sheet or film journaled to the other roller without stopping the rotation of the rollers. When the roll-shaped paper sheet or film on the one roller is replaced, immediately after splicing is performed from the one roller to the roll-shaped paper sheet or film on the other roller, the one roller is stopped rapidly. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention unwinds a roll of paper or film that is pivotally supported on one winding shaft, and from the paper or film of the one winding shaft to a roll of paper or film that is pivotally supported on the other winding shaft. And a rotary automatic paper splicing device that continuously splices without stopping the rotation of the winding shaft.

  Conventionally, in a web printer, a rotary automatic web splicing device that automatically joins paper to the next web without stopping the printing machine when the web being printed is finished is known, Such a rotary type paper splicing device in a printing machine or the like is generally mounted on a revolving-type reel holding device having a plurality of axes of roll-shaped paper or film and wound around a reel during unwinding operation. Automatic paper splicing devices that continue production continuously by automatically splicing to the paper or film on the other winding shaft when the remaining amount of paper or film is low are widely used (for example, Patent Document 1).

  Such an automatic paper splicing device synchronizes the rotational peripheral speed of the paper or film on the other winding shaft in advance with the rotation of the winding shaft that is being spliced. In response to a signal that detects that the remaining amount of paper has been reduced to a predetermined amount, the tip of the replacement reel paper or film with adhesive is immediately pressed against the paper or film that is in operation. The paper or film inside and the replacement paper or film are joined together, and the paper or film in operation is cut instantly so that the paper splicing can be continued without stopping the winding shaft. It is the structure to perform.

  A series of operations of the automatic sheet splicing device is performed in a very short time by calculating a pulse signal from an encoder connected to a replacement winding shaft. In particular, immediately after joining the replacement paper or film and the paper or film in operation, the cutter is driven by a cutter signal, and the paper or film in operation that is fed out at high speed is instantaneously cut. From the moment the paper or film is cut, the rotational power to the rotating winding shaft is cut off.

Japanese Patent Laid-Open No. 10-157055

  However, the winding shaft immediately after the paper splicing does not stop instantaneously even after the rotational power is cut off, and continues to rotate with its own inertia. For this reason, with the rotation of the winding shaft due to inertia, there is a problem that the paper or film remaining on the winding shaft after paper splicing is fed out.

When the paper or film remaining on the winding shaft after the paper splicing is discharged, the winding shaft in operation is entangled, and the paper or film on the winding shaft after operation and the paper or film on the winding shaft in operation However, since they are supplied to the apparatus at the same time, there has been a risk that the apparatus malfunctions or the yield decreases due to printing defects.
In particular, the paper or film discharged immediately after the paper splicing is charged with static electricity, and there is a drawback that the charged paper or film tends to adhere to the paper or film in operation.

  In order to solve the above problems, the invention according to claim 1 of the present invention unwinds a roll of paper or film that is pivotally supported by one of the winding shafts and from the paper or film of the one winding shaft to the other. A rotary automatic paper splicing device that continuously splices a roll of paper or film supported by a winding shaft without stopping the rotation of the winding shaft, the paper on one of the winding shafts Alternatively, in the automatic paper splicing device, when the film is changed, the one winding shaft suddenly stops immediately after the splicing from the one winding shaft to the paper or film of the other winding shaft. is there.

  The invention according to claim 2 is the automatic paper splicing device, wherein the one winding shaft is further reversely rotated after the one winding shaft is suddenly stopped.

  According to a third aspect of the present invention, there is provided an automatic paper splicing device characterized in that the unwinding shaft reverses at a constant peripheral speed and for a predetermined time.

  The invention according to claim 1 of the present invention unwinds a roll of paper or film that is pivotally supported by one winding shaft, and is pivotally supported by the other winding shaft from the paper or film of the one winding shaft. A roll-type automatic paper splicing device that performs continuous splicing to roll-shaped paper or film without stopping the rotation of the winding shaft, at the time of replacing the paper or film of the one winding shaft, Since one of the winding shafts stops suddenly immediately after the paper splicing from the one winding shaft to the paper or film of the other winding shaft, the one winding shaft to the other winding shaft At the time of paper splicing, the paper or film after cutting is suddenly stopped when the power is cut off, so that the paper or film after cutting is discharged along with the rotation due to the inertia of the reel, and the paper or film in operation again Adhering to the winding It is possible to prevent the Murrell. Furthermore, when the paper or film remaining on the winding shaft after the paper splicing is removed from the apparatus, there is an effect that the working efficiency is improved without causing the trouble of winding the paper or film remaining on the winding shaft.

  The invention according to claim 2 is characterized in that, after the one winding shaft is suddenly stopped, the one winding shaft is further reversely rotated. Therefore, when paper is spliced from one winding shaft to the other winding shaft. The paper or film after cutting is discharged by the rotation of the reel due to the inertia of the reel, by suddenly stopping the roll immediately after the paper splicing where power has been cut off, and reversely rotating. Alternatively, it can be prevented from adhering to the film and being caught. Furthermore, it is possible to rewind the paper or film discharged from the winding shaft immediately after the paper splicing onto the winding shaft, and to wind the paper or film remaining on the winding shaft when the winding shaft is removed from the apparatus. There is no need to take the trouble.

  Further, the invention according to claim 3 is characterized in that the one winding shaft is rotated at a constant circumferential speed and over a certain time, and therefore, when the paper is spliced from one winding shaft to the other winding shaft, The paper or film after cutting is suddenly stopped and then reversed so that the cut paper or film is discharged along with the rotation of the reel due to the inertia of the winding shaft, and again to the paper or film in operation. It is possible to prevent them from adhering and being caught. Furthermore, it is possible to rewind the paper or film discharged from the winding shaft immediately after the paper splicing onto the winding shaft, and to wind the paper or film remaining on the winding shaft when the winding shaft is removed from the apparatus. There is no need to take the trouble.

  In this way, a power motor for applying a rotational speed or a brake to the paper or film of the winding shaft is provided in advance, and the winding shaft immediately after the paper splicing where the power is cut off is suddenly stopped and at a constant peripheral speed for a certain time. The above problem can be solved by the reverse configuration.

  As an example of the automatic paper splicing device according to the present invention, as shown in FIG. 1A, an automatic paper splicing device 10 used in a part of the coater device 50 (part 10 in FIG. 1A) is shown. Can be mentioned.

  In this case, the film 7 is continuously unwound from the automatic paper splicing device 10 in the direction of the arrow, and after coating the film 7 in the coater unit 20, the film 7 immediately after coating is dried in the drying unit 30. In the winding part 40, the coated film 7 is wound up.

  In particular, as shown in FIG. 1 (b), the automatic paper splicing device 10 supports one of the roll-shaped paper 7 or the roll-shaped film 7 (hereinafter referred to as the roll-shaped film 7) that is being fed. Each has a winding shaft 1 and the other winding shaft 2 that pivotally supports a new roll-shaped film 7 ′ for replacement when the roll-shaped film 7 of the one winding shaft 1 runs out. When the roll film 7 is exchanged from the one winding shaft 1 to the other winding shaft 2, the main shaft 3 of the winding shaft holding arm 4 that supports the winding shafts 1 and 2 is used as an axis. By rotating the winding shaft holding arm 4 (dotted line circle) and driving the paper splicing arm 11 up and down (dotted arc), the sheet is continuously spliced to a new roll film 7 ′ without stopping the supply of the film 7. It is possible.

  The automatic paper splicing device 10 of the present invention is not limited to the above-described coater device, and may be a printing machine for continuously printing on paper or film. If it is the automatic paper splicing device 10 that performs paper splicing, the use and the overall device configuration are not particularly limited.

Next, the apparatus configuration of the automatic sheet splicing apparatus 10 will be described.
As shown in FIG. 2, the automatic paper splicing device 10 of the present invention has two winding shafts 1 and 2 (one winding shaft 1 and the other winding shaft 2) that support the roll-shaped film 7 in the front and rear directions. One roll shaft 1 continuously unwinds the roll film 7, and the other roll shaft 2 is loaded with a new roll film 7 '. Then, the film 7 is continuously unwound from the one winding shaft 1, and the film 7 is continuously supplied to a coater unit 20 and a printing unit (not shown), which are later processes, via a plurality of feed rollers 12. ing.

  The two winding shafts 1 and 2 are pivotally supported by a winding shaft holding arm 4 formed so as to be rotatable about the main shaft 3. Normally, the winding shaft 1 on the side of unwinding the film 7 during operation ( One winding shaft 1) is close to the feed roller 12 side (positioned in front), and on the other hand, the winding shaft 2 (the other winding shaft 2) that pivotally supports the new roll film 7 is far from the feed roller 12. The film 7 is supplied in a state where it is positioned so as to be located at the rear (positioned rearward).

  And when the roll-shaped film 7 of the said one winding shaft 1 in the below-mentioned driving | running | working reduces at the time of replacement | exchange of the roll-shaped film 7, the said winding shaft holding arm 4 rotates counterclockwise. The one winding shaft 1 moves backward, and the other winding shaft 2 having the new roll-shaped film 7 moves forward to exchange the positions of each other.

  In addition, a guide arm 5 is formed to share the winding shaft holding arm 4 and the main shaft 3, and when the roll film 7 described later is replaced, the one winding shaft 1 in operation is moved backward. In this case, the film 7 unwound from the one winding shaft 1 can be continuously supplied via the guide roller 6 pivotally supported by the guide arm 5.

  Also, a bonding roller 8 for laminating the film 7 of one of the winding shafts 1 and the film 7 'of the other winding shaft 2 substantially above the one winding shaft 1 during operation, A paper splicing arm 11 having a cutter 9 for cutting the film 7 of one winding shaft 1 is formed. The paper splicing arm 11 is continuously driven from the one winding shaft 1 by the vertical driving of the paper splicing arm 11 described later. The film 7 to be unwound and the new film 7 ′ pivotally supported on the other winding shaft 2 are bonded together, and the one film 7 can be cut and the paper can be spliced instantly.

In particular, the automatic paper splicing device 10 according to the present invention has the one winding shaft immediately after the roll films 7, 7 'of the one winding shaft 1 and the other winding shaft 2, which will be described later, are spliced together. By suddenly stopping 1, it is possible to prevent the discharge film 7 discharged along with the inertial rotation of the one winding shaft 1 from being wound into the roll film 7 ′ of the other winding shaft. .
Furthermore, the discharge film 7 can be automatically rewound onto the winding shaft 1 by rotating one winding shaft 1 in reverse (reverse rotation) at a constant peripheral speed for a fixed time.

Next, a paper splicing method for exchanging the roll film 7 from one winding shaft 1 to the other winding shaft 2 in the automatic paper splicing device 10 of the present invention will be described.
First, as shown in FIG. 3, the automatic sheet splicing device 10 continuously unwinds the film 7 from a roll-shaped film 7 supported on the one winding shaft 1 during operation, and a plurality of feed rollers. 12 is supplied to a coater unit 20 or a printing unit (not shown).

  As the film 7 is unwound, the roll diameter 7 supported by the one winding shaft 1 gradually decreases and the rotation speed of the winding shaft 1 increases. At this time, if it is determined by an encoder (not shown) that monitors the rotation speed of the winding shaft 1 that the winding shaft 1 has reached a predetermined number of rotations, an exchange operation (paper splicing operation) is performed on the other winding shaft 2. It is a configuration to be performed.

  When the roll film 7 is replaced, first, as shown in FIG. 4, the winding shaft holding arm 4 is driven to rotate counterclockwise (circular arrow in the drawing). At this time, the film is continuously supplied from the one winding shaft 1.

  Then, as shown in FIG. 5, by further rotating the winding shaft holding arm 4 counterclockwise (circular arrow in the drawing), the one winding shaft 1 moves backward and a new roll The other winding shaft 2 that pivotally supports the film 7 'moves forward and exchanges the positions of the winding shafts.

At this time, the film 7 unwound from the one winding shaft 1 is supplied to the feeding roller 12 via a guide roller 6 pivotally supported at the tip of the guide arm 5 through a substantially letter-shaped route. In particular, the film 7 being unwound passes through a portion immediately above the roll-shaped film 7 ′ of the other winding shaft 2.
Further, the roll film 7 ′ of the other winding shaft 2 starts to rotate at a peripheral speed synchronized with the unwinding speed of the film 7 unwound from the one winding shaft 1 (predrive).

  At this time, in order to prevent the tip portion of the roll film 7 ′ of the other winding shaft 2 during the pre-drive from being turned over, the tip portion of the film 7 ′ is attached to the film 7 using a tape for preventing peeling. It is desirable to stick to the second layer.

  Then, when paper splicing from the roll film 7 of the one winding shaft 1 to the roll film 7 ′ of the other winding shaft 2, as shown in FIG. The film wound from the one winding shaft 1 while rotating the roll film 7 ′ of the other winding shaft 2 in synchronization with the traveling speed of the film 7 being unwound and lowering the paper splicing arm 11. 7 and the film 7 ′ on the other winding axis 2 are pressed by the laminating roller 8 to press the film 7 ′ on the other winding axis 1 and the film 7 ′ on the other winding axis 2 Can be instantly pasted together.

  That is, an adhesive for paper splicing, a double-sided adhesive tape, or the like is formed at the front end portion of the roll film 7 ′ for replacement, and is thus unwound from the one winding shaft 1. By pressing the film 7 and the tip end portion of the film 7 ′ on the other winding axis 2 with the bonding roller 8, the films 7 and 7 ′ can be bonded together. .

  Then, the film 7 unwound from the one winding shaft 1 and the film 7 'on the other winding shaft 2 are bonded together, and the cutter 9 formed at the tip of the paper splicing arm 11 is It is possible to cut | disconnect the film 7 of the said one winding axis | shaft 1 by protruding to the side.

  In this way, the splicing from the roll film 7 of one winding shaft 1 to the roll film 7 'of the other winding shaft 2 is completed, and as shown in FIG. The film 7 'is continuously unwound.

  However, normally, with the completion of the paper splicing, the rotational power of the one winding shaft 1 is cut off, but the winding shaft 1 continues to rotate due to the inertia of the winding shaft 1 itself. There is a problem in that the film 7 remaining in 1 continues to be discharged as the winding shaft 1 rotates. In particular, the film 7 immediately after the paper splicing is charged by the rotation during unwinding, and the discharged film D after the paper splicing may adhere to the film 7 ′ of the other winding shaft 2 during operation. is there.

  In other words, the winding shaft 1 in operation is gradually reduced in the roll diameter of the winding shaft 1 as the film 7 is unwound, so that the rotational speed of the winding shaft 1 gradually increases. The increase in the rotational speed of the winding shaft 1 causes an increase in mechanical loss (rotational resistance), and the power motor actively rotates the winding shaft 1 at high speed, so that the rotational power of the winding shaft 1 is cut off immediately after the paper splicing. After that, the winding shaft 1 continues to rotate in the unwinding direction due to inertia, and the paper or film 7 on the winding shaft is discharged even after the paper splicing.

  Then, when the film D discharged after the paper splicing adheres to the paper or film 7 of the other winding shaft 2 that has newly started operation, the films 7, 7 ′ of both winding shafts 1, 2 are formed. At the same time, paper is fed to a subsequent process (for example, a coater device), which may cause malfunction such as film clogging.

  Therefore, the automatic paper splicing device 10 of the present invention forcibly stops one of the winding shafts 1 after the paper splicing so that the winding shaft 1 rotates immediately after the paper splicing as shown in FIG. It is possible to prevent the film 7 from being discharged from the winding shaft 1 and to prevent the discharge film 7 from being wound on the other winding shaft 2 during operation.

  Furthermore, immediately after the one winding shaft 1 is suddenly stopped, the winding shaft 1 is automatically rotated to the one winding shaft 1 as shown in FIG. And the film 7 can be rewound. As a result, it is possible to more reliably prevent the discharge film D from the winding shaft 1 and the film 7 from adhering to the other winding shaft 2 during the paper splicing. Furthermore, when removing the roll-shaped film 7 after use from the winding shaft 1, it is possible to improve working efficiency without causing troubles such as rewinding the discharge film 7.

  As described above, the automatic paper splicing device 10 according to the present invention can replace the paper or film from the one winding shaft 1 to the other winding shaft 2 when the paper or film 7 of the one winding shaft 1 is replaced. Immediately after the paper splicing to 7 ', the one winding shaft 1 stops suddenly, and the power is cut off at the time of paper splicing from one winding shaft 1 to the other winding shaft 2. The winding shaft 1 immediately after the paper splicing is suddenly stopped, and the cut paper or film 7 is discharged along with the rotation of the winding shaft 1 due to the inertia of the winding shaft 1 and is again attached to the paper or film 7 'being spliced. Can be prevented. Furthermore, when the paper or film 7 remaining on the winding shaft 1 after the paper splicing is removed from the apparatus 10, the work efficiency is improved without causing the trouble of winding the paper or film 7 remaining on the winding shaft 1. There is an effect to.

  Further, after the one winding shaft 1 is suddenly stopped, the one winding shaft 1 is further reversed so that the cut paper or film 7 is discharged along with the rotation of the winding shaft 1 due to the inertia, and again. It is possible to prevent the paper or film 7 that is in operation from adhering to and being caught. Furthermore, the paper or film 7 discharged from the winding shaft 1 immediately after the paper splicing can be rewound onto the winding shaft 1 again, and the remaining paper or film 7 is removed when the winding shaft 1 is removed from the apparatus. There is no need to rewind the wire to the winding shaft 1 or the like.

  As a method of suddenly stopping and reversely rotating (reversing) the winding shaft 1, it is possible to perform a sudden stop and reverse rotation by control using an inverter motor for rotating the winding shaft 1. In addition, a power motor for applying a rotational speed or a brake to the paper or film of the winding shaft is provided in advance, so that the winding shaft immediately after the paper splicing where power has been cut off is suddenly stopped and reversed at a constant peripheral speed for a certain time. In the above example, an example of the automatic paper splicing device 10 in the coater device is shown. However, the present invention is not limited thereto, and may be applied to the automatic paper splicing device 10 of the printing device. It is not particularly limited.

(A) (b) It is explanatory drawing which shows an example of the automatic paper splicing apparatus based on this invention. It is a partial cutting explanatory view showing an example of an automatic paper splicing device according to the present invention. It is explanatory drawing which shows an example of the paper splicing by an automatic paper splicing device. It is explanatory drawing which shows an example of the paper splicing by an automatic paper splicing device. It is explanatory drawing which shows an example of the paper splicing by an automatic paper splicing device. It is explanatory drawing which shows an example of the paper splicing by an automatic paper splicing device. It is explanatory drawing which shows an example of the paper splicing by an automatic paper splicing device. It is explanatory drawing which shows an example of the paper splicing of an automatic paper splicing device.

Explanation of symbols

1 One winding shaft (winding shaft)
2 The other winding shaft (winding shaft)
3 Spindle 4 Reel holding arm 5 Guide arm 6 Guide roller 7, 7 'Paper or film (roll film)
8 Bonding roller 9 Cutter 10 Automatic paper splicing device 11 Paper splicing arm 12 Feed roller D Discharge film

Claims (3)

The roll-shaped paper or film pivotally supported on one winding shaft is unwound and the roll-shaped paper or film pivoted on the other winding shaft from the paper or film on one winding shaft An automatic web splicing device that performs continuous splicing without stopping rotation,
When the paper or film of the one winding shaft is exchanged, the one winding shaft suddenly stops immediately after joining from the one winding shaft to the paper or film of the other winding shaft. An automatic splicing device.   2. The automatic paper splicing device according to claim 1, wherein the one winding shaft is further reversely rotated after the one winding shaft is suddenly stopped.   3. The automatic paper splicing device according to claim 2, wherein the one winding shaft is rotated at a constant peripheral speed and for a predetermined time.

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