JP3553282B2 - Web joining preparation method and joining preparation apparatus - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a preparation apparatus for joining a web (a thin sheet material such as metal, paper, and plastic film) during transfer, and particularly to a preparation for joining a web applied to a web delivery apparatus such as a coating machine, a cutting machine, and a rewinding machine. The present invention relates to a method and a bonding preparation device.
[0002]
[Prior art]
As for the preparation for joining the new and old web rolls, for example, JP-A-62-285854 (hereinafter referred to as "prior art A") and JP-B-3-13144 (hereinafter referred to as "prior art B"). And Japanese Patent Application Laid-Open No. 3-56348 (hereinafter referred to as "prior art C").
[0003]
[Problems to be solved by the invention]
In the case of photographic light-sensitive materials represented by roll-shaped photographic paper, the end portion of the web after joining is often a product, and in practice, the web of the outermost to several turns of the web roll is discarded in advance. You need to prepare for it. The above-mentioned prior arts A to C have a drawback that such disposal work must be performed by an operator.
[0004]
In order to save a waste space, the waste web generated in association with the outer peripheral waste is often wound up by a worker in a small winding shape. Has to be done.
In the case of roll-shaped photographic paper, the joints of the old and new webs are overlap-joined by thermal bonding (including ultrasonic welding), but this joining requires not only the width direction but also the joining position accuracy in the longitudinal direction. You. However, the prior arts A and B have a drawback that the positional accuracy in the width direction of the front end of the new web can be ensured, but the positional accuracy in the longitudinal direction cannot be ensured. In the prior art A, the positional accuracy in the longitudinal direction of the front end of the new web can be ensured, but the positional accuracy in the longitudinal direction of the rear end of the old web cannot be ensured. In addition, bonding is performed with an adhesive tape.
[0005]
In the case of roll-shaped photographic paper, it is necessary to perforate a joint detection hole called an ISO hole near the joint of the old and new webs. Since an ISO hole cannot be drilled in the vicinity, there is a disadvantage that an attempt to open the ISO hole results in an operation loss after the joining and for the joining time.
In the above-mentioned prior art A, there is a drawback that an operator has to perform the work of setting the web holder to the new web tip for pulling out the new web tip, and collecting the cut pieces of the joined web holder and the new web tip. is there. In particular, it is necessary to collect the web holder after joining each time the web roll is replaced. In the prior arts B and C, the operator has to perform the work of pulling out the leading end from the web roll, and this work also needs to be performed every time the web roll is replaced.
[0006]
In the prior art B, the front end of the new web is rubbed with the suction conveyor at the time of positioning in the width direction. For this reason, since the front end of the new web may be scratched or the like, there is a disadvantage that it cannot be used as a product.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a web joining preparation method and a joining preparation apparatus that can solve the disadvantages of the conventional technique.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a web joining preparation method and a joining preparation apparatus for joining a web joining portion of a new web roll to a web rear end of an old web roll, The leading end of the web is taken up from the new web roll by moving the leading end of the web to a predetermined length by leading end winding means, and moving the leading end winding means toward the web suction means. The web sucked and held by the suction means and the web sucked and held by the web suction means are cut in the width direction of the web by the cutting means to form the web joint, and the web joined part is sucked and held by the web suction means It is characterized in that it is made to stand by until the joining in a state in which it is made.
[0008]
According to the present invention, first, the leading end of the new web roll is wound up by a predetermined length by the leading end winding means. Next, the tip winding means is moved toward the web suction means, and the web is drawn from the new web roll. Next, the vicinity of the leading end of the drawn web is suction-held by the web suction means. Then, the web held by suction is cut in the width direction of the web by the cutting means to form a web joining portion, and the web joining portion is held by suction with the web sucking device and waits until joining. As described above, according to the present invention, the outer peripheral portion of the new web roll is wound up for a predetermined length and discarded, so that no flaws or the like remain on the web joining portion of the new web roll to be joined.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a web joining preparation method and a joining preparation apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is an overall view showing a web joining preparation apparatus according to the present embodiment. The web joining preparation device 10 shown in FIG. 1 includes a web sending unit 12 and a web cutting / joining unit 14. A turret arm 16 is rotatably supported on a column 18 by a shaft 20 as a fulcrum at the web delivery portion 12, and a core 24 of a web roll 23 of an old web 22 is rotatably supported at one end thereof. At the other end, a core 28 of a web roll 27 of a new web 26 is attached rotatably and axially movably. The old web 22 is sent from the sending unit 12 to the coating device (not shown) via the cutting and joining unit 14.
[0010]
On the other hand, after the new web 26 is aligned in the width direction by the raw material positioning device 30, the front end portion is drawn out by a predetermined length by the front end drawing device 40, and the winding device 50 shown by a two-dot chain line in the drawing is drawn. The leading end is nipped by a winding chuck (not shown). Thereafter, the new web 26 is pulled out from the web roll 27 by moving the take-up chuck together with the take-up device 50 to the downstream of the web suction device 60. Then, the tip end of the new web 26 is cut by the web cutting device 70 after being sucked into the suction box 61. The distal end (discarded portion) of the web wound up by the winding chuck is fixed at the end by a tape application device 80 and is rolled into a cylindrical shape, and then automatically discharged to a storage box 90. An ISO hole is drilled by the ISO hole drilling device 100 at the leading end (joint portion) of the web cut by the web cutting device 70.
[0011]
FIG. 2 is a perspective view of the raw sheet positioning device 30. The raw material positioning device 30 shown in FIG. 3 includes a distance detection sensor 31 that measures the distance from the outermost periphery of the web roll 27, and a controller 32 that receives a distance signal from the distance detection sensor 31, compares the signal with a reference value, and processes the signal. And a moving mechanism 33 for moving the distance detection sensor 31 in the radial direction of the web roll 27. The distance detection sensor 31, the controller 32, and the moving mechanism 33 are installed on an L-shaped support base.
[0012]
As the distance detection sensor 31, a non-contact type displacement sensor, an ultrasonic sensor, or the like can be applied in addition to an analog output type contact type displacement sensor.
On the other hand, as the moving mechanism 33, besides the uniaxial robot, a ball screw mechanism including a ball screw, a motor, a guide, and the like can be applied. When the position of the web roll end face to be positioned is a fixed position, the position of the distance detection sensor 31 in the web roll axial direction is made to match the web roll end face position to be positioned. When the position of the end face of the web roll to be positioned changes, an axial moving mechanism for moving the distance detection sensor 31 in the web roll axial direction may be separately provided.
[0013]
The leading end drawing device 40 illustrated in FIG. 1 includes a leading end feeding unit 41, a radial moving unit 42 that moves the leading end feeding unit 41 in the radial direction of the web roll, and a vertical movement that moves the leading end feeding unit 41 in the vertical direction. And a unit 43.
Further, as shown in FIG. 3, the leading end feeding unit 41 includes a leading end detection sensor 44 for detecting the leading end of the web, a tape cutter 45 for cutting a leading end stop tape for locking the leading end of the web to the web roll, and a portion near the leading end of the web. It comprises a suction pad 46 for sucking and drawing out the leading end of the web, and a suction pad drive unit 47 (see FIG. 1) for rotating the leading end suction pad 46 to draw out the leading end of the web.
[0014]
The radial moving section 42 employs a ball screw mechanism including a ball screw, a motor, a guide, and the like. The vertical moving section 43 includes an air cylinder 48 and a jack mechanism including a pair of guide rods 49, 49. Has been adopted.
An ultrasonic sensor is used for the tip detection sensor 44. When an ultrasonic sensor is used, a small step of about 0.1 mm can be detected by setting the distance and the angle to the detection surface within a certain range. When the thickness of the web is relatively large, the difference in distance due to the step can be directly detected (or amplified by a lever or the like) and detected by a contact sensor. When the distance is directly detected by a contact displacement sensor, the above-described distance detection sensor can be used as it is.
[0015]
The tape cutter 45 includes an urging mechanism for pressing the circular blade and the circular blade against the outer peripheral surface of the web roll with a constant force, and a cutter for cutting the tape by running the circular blade and the urging mechanism in the width direction of the web roll. It is composed of a moving mechanism.
As the tip suction pad 46, a commercially available suction pad can be used. When this suction pad is used, it is preferable to set a plurality of locations in the width direction of the raw material.
[0016]
As the radial moving unit 42, a commercially available uniaxial robot may be applied in addition to a ball screw mechanism including a ball screw, a motor, a guide, and the like.
As the suction pad driving section 47, a rotary actuator can be used.
In FIG. 1, the winding device 50 includes a winding unit 51 and a moving mechanism 52 that reciprocates the winding unit 51 between the web sending unit 12 and the web cutting and joining unit 14.
[0017]
As shown in FIG. 4, the winding unit 51 includes a pair of winding chucks 53 (one not shown) for nipping both ends of the web, a motor 54 for rotating the winding chuck 53, and the winding chuck 53 and the motor. 54, a torque limiter 55 interposed between the webbing 54 and a torque limiter 55 for limiting the transmission torque to the winding chuck 53, a chuck moving unit 56 for moving the winding chuck 53 in the width direction of the web roll, and a pulling ring 57. .
[0018]
The winding chuck 53 has a configuration in which an inner chuck and an outer chuck are attached to a commercially available parallel opening / closing air chuck. With such a configuration, the outer diameter of the chuck at the time of chucking is made larger than the outer diameter of the chuck at the time of unchucking, so that the wound product can be easily separated from the winding chuck after winding is completed. Further, the cross-sectional shape of the wound product at the time of winding can be made close to a perfect circle.
[0019]
Various slip clutches can be used as the torque limiting section 55. As the moving mechanism 52, a commercially available uniaxial robot or the like can be used.
As shown in FIG. 5, the web suction device 60 shown in FIG. 1 includes a suction box 61 formed in a frame shape, a pair of air cylinders 62 and 62 for moving the suction box 61 up and down, and a pair of guide rods 63. , 63. The suction box 61 is provided with a receiving groove (lower blade) 64 for the cutter 71 (see FIG. 6) of the web cutting device 70 and a relief hole 65 for being drilled by the ISO hole drilling device 100 (see FIG. 7). ing.
[0020]
As shown in FIG. 6, the web cutting device 70 includes a cutter unit including a cutter 71 and a cutter holder 72 that rotatably supports the cutter 71, and a moving mechanism 73 that moves the cutter unit in the width direction of the web roll. Be composed.
As the moving mechanism 73, as shown in FIG. 5, a ball screw mechanism including a ball screw 74, a motor 75, a guide 76, and the like is employed. In addition, an air cylinder mechanism, a uniaxial robot, or the like may be applied.
[0021]
As shown in FIG. 8, the tape sticking device 80 shown in FIG. 1 includes a sending unit 81 that rotatably supports a raw tape, a tape suction roll 82, a tape suction roll moving unit 83, a tape suction roll drive motor 84, a cutter, 85, a cutter moving mechanism 86, a press roll 87 for preventing the take-up roll from being unwound, and a press roll moving mechanism 88. Reference numeral 89 denotes an adhesive tape.
[0022]
As the raw tape, a commercially available pressure-sensitive adhesive tape having an adhesive surface on one side can be used, but a tape having a low friction coefficient on the non-adhesive surface is preferable.
A suction hole (not shown) for suctioning the tape 89 is formed on the surface of the tape suction roll 82, and is connected to a vacuum pump via a valve. Further, a groove (not shown) for the escape of the cutter 85 is formed on the surface of the tape suction roll 82. It is desirable that the surface of the tape suction roll 82 has a low friction coefficient in order to reduce the running resistance of the tape 89.
[0023]
A commercially available air cylinder or the like may be used as the tape suction roll moving unit 83, and a commercially available rotary actuator or the like may be used as the tape suction roll drive motor 84.
As the cutter 85, a commercially available safety cutter, razor, saw blade or the like can be used. As the cutter moving mechanism 86 and the holding roll moving mechanism 88, a commercially available air cylinder or the like may be used.
[0024]
When a tape having a particularly strong adhesive force or a tape having a high frictional resistance on the non-adhesive surface is used, a tape pulling roll driven by an air cylinder may be separately provided in the middle of the tape path.
The storage box 90 shown in FIG. 1 includes a stocker 91, a guide 92, and a passage confirmation sensor 93.
[0025]
The ISO hole punching apparatus 100 shown in FIG. 7 includes an ISO hole punching unit including a punch 101, a punch up / down mechanism 102, a die 103, and a die up / down mechanism 104, and a moving mechanism that moves the ISO hole punching unit in the web width direction. 105. The die 103 is connected with a drill dust suction hose 106 for collecting drill dust.
[0026]
As the punch up / down mechanism 102 and the die up / down mechanism 104, commercially available cylinders and the like can be used. As the moving mechanism 105, a commercially available uniaxial robot or the like can be used.
The ISO hole punching unit and the web cutter can usually prevent interference by waiting on both sides of the web. The same applies to the web cutter and the joining device of the old web.
[0027]
Next, the operation of the web joining preparation apparatus configured as described above will be described. First, when the web roll is positioned, the core 28 is moved in the axial direction until the outer peripheral surface of the web roll 27 of the new web 26 is positioned on an extension of the distance detection sensor 31 first. Next, the distance detection sensor 31 is raised by the moving mechanism 33 until the distance between the distance detection sensor 31 and the outer peripheral surface of the web roll 27 falls within the reference value in advance. At this time, the distance measured by the distance detection sensor 31 is stored as a new reference distance into the memory via the controller 32, and the core 28 is moved until the difference between the reference distance and the measured distance becomes equal to or less than a preset value. By moving the web roll 27 in the opposite direction, the web roll 27 is positioned.
[0028]
By such a positioning operation of the web roll 27, even when the web roll 27 is turbulent, the end face of the outer peripheral portion of the web roll can be accurately positioned, and even when the diameter of the web roll fluctuates, the movement of the web roll 27 can be performed. The positioning of the unit 33 in the radial direction of the web roll can be easily performed using the distance detection sensor 31.
[0029]
Next, the leading-out operation of the new web 26 will be described with reference to FIGS.
First, the tape cutter 45 is raised by the vertical moving unit 43 so that the height of the tape cutter 45 of the leading end extracting device 40 matches the center height of the web roll 27. Next, until the distance between the front end detection sensor 44 and the outer peripheral surface of the web roll 27 becomes a predetermined distance (suitable for detecting the front end), the front end feeding unit 41 is moved to the web roll 27 by the radial moving unit 42. Move toward Next, the rewind 28 is rotated until the leading end detection sensor 44 detects the leading end of the web roll 27. Thereafter, the radial moving unit 42 is further moved by a predetermined amount in the direction of the web roll (so that the round blade of the tape cutter 45 contacts the outer peripheral surface of the web roll 27 and obtains a predetermined pressing force). Then, the vicinity of the leading end of the web 26 is sucked by the suction pad 46, and the tape cutter 45 is caused to travel in the width direction of the web roll 27 by the cutter moving mechanism to cut the front end stopper tape. Then, after the core 28 is slightly rotated in the reverse direction to allow the web 26 to slack, the suction pad driving section 47 rotates the suction pad 46 to feed out the tip of the web 26.
[0030]
Next, winding of the web 26 will be described with reference to FIG.
First, the phase of the winding chuck 53 is adjusted by rotating the motor 54 at a constant speed. Next, the take-up unit 53 is moved by the moving mechanism 52 until the take-up chuck 53 reaches the fed web tip, and the take-up chuck 53 is moved by the chuck moving unit 56 to move the take-up chuck 53 to the web tip. Between the inner claws. Next, the take-up chuck 53 is closed and the leading end of the web is nipped. Thereafter, the winding of the web 26 is started by rotating the motor 54 and the winding core 28, and the winding unit 51 is moved to the final winding position by the moving mechanism 52 at an appropriate timing. When the movement of the winding unit 51 to the final winding position is completed and the winding length reaches a predetermined length, the motor 54 and the winding core 28 are stopped.
[0031]
Next, the leading end of the web 26 is sucked by the suction box 61 of the web sucking device 60 shown in FIG. 5, and the leading end of the web 26 is cut by running the cutter 71 of the web cutting device 70. Form.
Next, a method of treating the cut web tip will be described with reference to the tape sticking device 80 shown in FIG.
[0032]
First, the pressing roll 87 is brought into contact with the outer peripheral surface of the wound web 26 by the pressing roll moving mechanism 88. Next, the motor 54 (see FIG. 4) is rotated for a certain period of time, and the web 26 is wound around the winding chuck 53. Next, the tape suction roll 82 is rotated by the tape suction roll moving unit 83 so that the leading end of the tape faces the wound web. Thereafter, the leading end of the tape suction roll 82 is brought into contact with the outer peripheral surface of the wound web by the tape suction roll moving unit 83, and the suction of the tape suction roll 82 is released. Thereafter, when the pressing roll 87 is moved to the original position by the pressing roll moving mechanism 88 and the motor 54 is rotated again for a predetermined time, the tape 89 is attached to the wound web with the rotation of the wound web. Stick. On the other hand, the tape suction roll 82 is moved to the original position at an appropriate timing by the tape suction roll moving unit 83 and the tape suction roll drive motor 84. Thereafter, the tape suction roll 82 is sucked, and the cutter 85 is moved by the cutter moving mechanism 86 to cut the tape 89.
[0033]
Then, when the nip of the take-up chuck 53 shown in FIG. 4 is released and the take-up chuck 53 is separated by the moving mechanism 52, the web taken up by the extraction ring 57 is separated from the take-up chuck 53, and FIG. Drop into the stocker 91 via the guide 92 shown in FIG. At this time, the passage confirmation sensor 93 detects that the wound web 94 has fallen without fail. By such a joining method, a web having a wide width and insufficient rigidity can be wound into a small roll by a simple device.
[0034]
Next, the operation of the ISO hole punching apparatus 100 will be described with reference to FIG. First, after the ISO hole punching unit is positioned at a position corresponding to the product slit by the moving mechanism 105, the die 103 is lowered by the die lifting / lowering mechanism 104, and the punch 101 is raised by the punch lifting / lowering mechanism 102, and the ISO hole is formed in the web joining portion. Perforate. After punching, the die 103 and the punch 101 are moved to the original positions by the die lifting mechanism 104 and the punch lifting mechanism 102. During the drilling of the ISO hole, the drilling dust is collected via the drilling dust suction hose 106.
[0035]
Next, the joining of the old web 22 and the new web 26 will be described with reference to FIG.
When the use of the web 22 on the old web roll 23 is finished, the web 22 is sucked by the suction device 150, cut by the web cutting device 180, and the web 22 remaining on the core 24 is wound by the rotation of the core 24. Taken. On the other hand, on the new web roll 27 side, the core 28 is slightly rotated to give a necessary slack, and then the suction box 61 is raised by the moving mechanism 62 so that the joining portion of the new web 26 is adsorbed on the old web roll 23 side. It is delivered to the device 150 and absorbed. After the suction box 61 is moved down to the original position by the moving mechanism 62, the ultrasonic bonding apparatus 200 travels in the web width direction, and the new and old webs are bonded.
[0036]
By such a joining method, the width direction position of the new web tip after web winding can be easily matched with the web location.
The problem with the winding of a wide web is that when the web is to be wound by gripping only both ends of the web without using a core or the like, particularly when winding a wide web, the center of the web at the start of winding is important. The part may be broken. Conventionally, in order to prevent such a phenomenon, a winding core, a wrapper, a winding guide, and the like have been used. However, the use of such auxiliary devices complicates the device. In the present invention, by setting the winding tension (specifically, the winding torque) within a certain appropriate range without using such an auxiliary device, a wide web is wound by gripping only both ends of the web. It was confirmed by the experiment shown below that it could be taken.
[0037]
[Experimental example]
The appropriate winding torque here depends on the conditions such as the width and thickness of the raw material, the shape of the winding chuck, the feeding speed, and the winding speed. For example, the width is 1000 to 1500 mm and the thickness is 0.14 to 0. For a 28 mm photographic paper web roll, take-up chuck outer diameter 50 mm, take-up chuck gripping margin: 40 to 80 mm, preferably 50 to 70 mm in width direction, delivery speed 3 to 12 m / min, winding speed Under the condition of 13 m / min, the appropriate winding torque was 4 kgcm to 7 kgcm.
[0038]
Further, as a specific means for securing such a winding torque (tension), it is not necessary to use a tension bar disclosed in Japanese Patent Application Laid-Open No. 4-46062, and it is not necessary to use a tension bar between the winding chuck and the winding motor. It is only necessary to interpose a friction clutch that generates a constant torque to the motor.
Regarding the widthwise positional accuracy of the new web roll tip, in order to ensure the widthwise positional accuracy of the new web roll tip after winding the web, firstly, the web must not be sagged when the web is pulled out or wound up. is important. If the slack is generated, the wound web becomes thick and the positional accuracy in the width direction is reduced. Regarding the slack of the web, a friction clutch that generates a constant torque is interposed between the winding chuck and the winding motor, and the moving speed Vt of the web when the web is pulled out of the winding chuck and the winding of the winding chuck are adjusted. The relationship between the speed Vm and the web delivery speed Vu is given by the following equation:
Vu−Vm ≦ Vt ≦ Vu
By satisfying the above, the sagging of the web can be prevented.
[0039]
In addition, it is also important to make the winding torques of both chucks the same when winding the web, and to make the winding outer diameters of both chucks the same. For example, for a photographic printing paper web roll having a width of 1500 mm and a thickness of 0.2 mm, a take-up chuck outer diameter of 50 mm, a take-up chuck gripping margin: 40 to 80 mm in the width direction, preferably 50 to 70 mm, and a delivery speed of 12 m / min, a winding speed of 13 m / min, and a winding torque of 5.5 kgcm, when the winding of about 3 m is performed, the influence on the web position accuracy after winding per 1 kgcm of the winding torque is 0.5 mm. The effect on the web position accuracy after winding per 1 mm of the outer diameter of the winding chuck was about 1 mm.
[0040]
By doing so, if the end face position of the new web roll is previously adjusted to the web position of the old web roll, the web tip position is accurately maintained with respect to the web roll position even after the web tip is pulled out and wound up. It becomes possible.
9 and 10 are schematic configuration diagrams showing an embodiment of a web roll preparation device.
[0041]
FIG. 9 is a diagram showing a state in which the web roll is positioned by a web positioning unit (not shown), and then the leading end of the web 26 is transferred onto the suction conveyor 210 by a leading end pulling device (not shown). . Thereafter, the web 26 is pushed and fed by rotating the winding core 28 while rotating the suction conveyor 210 while sucking. When the leading end of the web 26 reaches the position of the take-up chuck 53, the feeding of the web 26 is temporarily stopped, the take-up chuck 53 is closed, and the leading end of the web 26 is nipped. Thereafter, the web 26 is wound while rotating the winding core 28 and the winding chuck 53, and when the winding length reaches a predetermined length, the winding core 28 and the winding chuck are stopped, and the suction box 61 is rotated. Then, the leading end of the web 26 is cut by moving the web cutter 71 so as to cut the leading end of the web 26.
[0042]
On the other hand, in FIG. 10, the suction conveyor 210 is rotated while being sucked, and the core 26 is rotated to push the web 26 forward. When the leading end of the web 26 reaches the position of the take-up chuck 53, the feeding of the web 26 is temporarily stopped, the take-up chuck 53 is closed, and the leading end of the web 26 is nipped. Thereafter, while winding the web 26 by rotating the winding core 28 and the winding chuck 53, the winding chuck 53 is lowered, and the lowering of the winding chuck 53 is completed. At this point, the core 28 and the take-up chuck 53 are stopped, the suction end of the web is sucked by the suction box 61, and the web cutter 71 is run to cut the end of the web 26.
[0043]
9 and 10, since the suction conveyor 210 is used to pull out the leading end of the web 26, the waste portion at the leading end is extremely short (specifically, the waste length <the delivery length). (The path length from to the cutting portion) includes a portion in contact with the suction conveyor 210 at the tip after cutting. On the other hand, in the apparatus shown in FIG. 1, the suction chuck 53 for gripping both ends of the leading end of the web 26 has a web take-up mechanism and a web pull-out mechanism, thereby eliminating the need for a suction conveyor. (Although it may be necessary to take the suction box down once when the web is pulled out, the tip after cutting can be used as a product regardless of the length of the disposal length.)
[0044]
【The invention's effect】
As described above, according to the web joining preparation method and apparatus according to the present invention, it is possible to automatically perform a series of new web roll preparation operations including the outermost peripheral portion discarding operation of the new web roll. It is possible to automatically take up and dispose of the rejected part in a small roll shape and to dispose it automatically, ensuring the accuracy of the joining position not only in the width direction but also in the longitudinal direction of the joining part of the new and old web rolls and automatic joining can be performed .
[0045]
In addition, the present invention eliminates the need for manual work such as preparation work for a new web roll and collection work that occurs each time a web roll is replaced, thereby reducing the burden on the operator and enabling unmanned continuous operation. In this case, the required ISO hole perforation can be automatically performed before joining, and further, the quality as a product can be ensured without causing scratches on the front end of the new web roll.
[Brief description of the drawings]
FIG. 1 is an overall view of a web joining preparation apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of a web positioning device applied to a web joining preparation device.
FIG. 3 is a perspective view of a leading end drawing device applied to a web joining preparation device.
FIG. 4 is a perspective view of a winding device applied to a web joining preparation device.
FIG. 5 is a perspective view of a suction box and a web cutting device applied to a web joining preparation device.
FIG. 6 is a front view of a web cutting device applied to the web joining preparation device;
FIG. 7 is a front view of an ISO hole punching apparatus applied to a web joining preparation apparatus.
FIG. 8 is a perspective view of a tape sticking device applied to a web joining preparation device.
FIG. 9 is an explanatory view of a main part showing an embodiment of a web joining preparation device.
FIG. 10 is a main part explanatory view showing another embodiment of a web joining preparation device.
[Explanation of symbols]
10. Web joining preparation device
30 ... raw material positioning device
40 ... Tip withdrawal device
50 ... winding device
60 ... Web adsorption device
70 ... Web cutting device
80 ... Tape sticking device
90 ... storage box
100 ... ISO hole punching device

Claims (9)

In a web joining preparation method for joining a web joining portion of a new web roll to a web rear end portion of an old web roll,
Winding the web tip of the new web roll by a predetermined length by a tip winding means,
The tip winding means is moved toward the web suction means, the web is drawn from the new web roll, and the vicinity of the tip of the drawn web is suction-held by the web suction means,
The web suction-held by the web suction means is cut in the width direction of the web by a cutting means to form the web joint,
A web joining preparation method, characterized in that the web joining section is made to stand by until joining when the web joining section is sucked and held by the web sucking means. 2. The web joining preparation method according to claim 1, wherein a web tip portion of the new web roll is pulled out by a tip pulling means and transferred from the tip pulling means to the tip winding means. 2. The web joining preparation method according to claim 1, wherein the leading end winding means grips both ends of a leading end of the web of the new web roll and winds the web for a predetermined length. The web tip wound by the tip winding means and cut and separated by the cutting means is fixed with an adhesive tape in a wound state, and then stored in a storage unit. Item 1. A method for preparing a web according to Item 1. In a web joining preparation device for joining a web joining portion of a new web roll to a web rear end portion of an old web roll,
Tip winding means for winding a predetermined length of the web tip of the new web roll,
Moving means for moving the tip winding means in the web withdrawal direction,
Web suction means for suction holding the vicinity of the leading end of the web drawn by the movement of the moving means,
Cutting means for cutting the web held by the web suction means in the width direction,
A web joining preparation device, comprising: 6. The web joining preparation apparatus according to claim 5, wherein a leading end pulling-out unit for pulling out a leading end of the web of the new web roll is provided at a stage preceding the leading end winding unit. The tip winding means,
A pair of take-up chucks that grip both ends of the web roll,
A motor for transmitting a driving force to the pair of winding chucks,
Torque control means provided between the pair of winding chucks and the motor to control a transmission torque of the motor,
The web joining preparation device according to claim 5, wherein the web joining preparation device comprises: 8. The web joining preparation apparatus according to claim 7, wherein a transmission torque of the torque control means is 1.5 kgf to 3.0 kgf on an outer peripheral surface of the winding chuck. The relationship between the moving speed Vt of the leading end winding unit in the web drawing direction, the winding speed Vm of the leading end winding unit, and the feeding speed Vu of the web roll is as follows.
The web joining preparation apparatus according to claim 5, wherein Vu-Vm? Vt? Vu.

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