JPS61136852A - Automatic tape cutting device for coil paper - Google Patents

Abstract

PURPOSE:To make operations into full automation, by delivering paper out, attracting the paper to a suction box with suction force, then pulling it somewhat upward, making this paper tense, while forming a lead part accurately with control of a phototube, and cutting the paper as the constitution. CONSTITUTION:When new coil paper 14 stored in an unwider device 6 is transferred to a splicing tape sticking device 31, a guide plate 38 goes up, guiding the paper, and rotates in an arrow A direction 41, thus the paper is delivered. This paper stops when a phototube 44 is intercepted and is wound up till the phototube 44 goes out as being attracted by suction, thereby making the paper tense to a suction box 43. Next, when an automatic adhesive tape sticking device 48, a double-faced adhesive tape 12 is stuck, and the paper is cut by a CO2 laser beam cuter 49 at a gap 21 of 0.5-1mm. Thus, a lead part is formed in a fully automatic manner, an adhesive surface of a label paper is pressed to new coil paper 14 by pressing a riding roll 37. This new coil paper is transferred to the unwider device 6, feeding it to the old coil paper.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention can be used in coating machine unwinding units, offset newspaper rotary presses, and other machines that require continuous supply of rolled webs (cloth, film, laminated paper, etc.). This invention relates to an automatic tape tailoring device for coiled paper.

(Prior Art) Conventional automatic coil paper tape making devices (transfer type unwinders) have required one or two or more workers to manually apply tape to an unwind roll.

Conventional tape application work for unwinding rolls is done using an unwinding machine such as an off-machine coater with a transfer method.
It was necessary to sequentially feed the coiled paper 1 (unrolled paper) and (splice the paper). Also, to perform the paper splicing,
The lead part (
6 and 7) It was necessary to form it so that it could continue.

FIG. 3 is a schematic side view of the conventional transfer method 3 after changing the frame, FIG. 4 is a view from A in FIG. 3, and FIG. 5 is a schematic diagram of the transfer method 4. Transfer method off-machine 3 and 4 are schematic diagrams, but the only difference is whether the coil paper 1 is spliced upward or downward, and there is no other major difference. . In addition, B in Figure 3
The dashed-dotted line part shown in the figure is the position where the splicing tape application device 31 of the present invention is installed.

Now, the coiled paper 5 wound by the paper machine is placed on the unwinder device 6 shown in FIG. are sequentially sent through the stopper kicking device 15.

Further, the formation work of the lead portion 2 is carried out by having a rail lifting portion 8 in the middle of the rail, and pushing up the rail lifting portion 8 with a cylinder 9, which also serves to prevent the transfer of the coiled paper 10 during upstream storage.

Although only one worker is shown in the figure, two to three workers also climbed onto the rail 7 and used all the underlays, knives, etc. to form the zigzag shape shown in FIG. 6 as an example of the shape. The lead part 2 is made entirely by hand, such as cutting it into strips, fixing key points with paper holding tabs 11, and pasting double-sided adhesive tape 12 along the lead ends.

When the old coil paper 13 reaches a predetermined diameter, it is calculated by the computer, the old coil paper 13 is lifted upward by the transfer arm 16, and the new coil paper 14 is moved to the stopper kicking device 1.
5, and the state shown in FIG. 4 is reached. When the old coiled paper 13 becomes smaller in diameter, the paster arm 17 moves forward, detects the diameter of the new roll using a phototube, and stops.The unwinder DC motor 47 starts, and the surface speed of the new coiled paper 14 changes to the line speed. Immediately after the lead section 2 provided on the surface of the new coil paper passes through the
Press the splice roll 19 against the new coil paper 14 side,
After one rotation, the double-sided adhesive tape 12 is crimped, the new coil paper lead is brought to the old coil IE13 running section, and immediately after that, the old coil paper side is cut with the knife 20, and the tension is controlled from the transfer arm to the unwinder stand. Move on to complete the frame change.

The frame change for transfer method 4 in FIG. 5 is also roughly the same. The shape of the lead portion 2 is usually optimal depending on the type of coating machine, basis weight, paper width, and running speed. In other words, how to prevent air from being entrained during frame change synchronization, how to prevent the tip of the lead part from unraveling, and how to prevent the lead part 2 from coming undone immediately after frame change.
However, various efforts have been made to proceed without getting caught in the mechanical system, and in order to make it easier to change the frame, the circumferential surface of the new coiled paper 14 is used as much as possible, as shown in Figures 6 and 7. The reed part 2 is made in a dogleg shape or in a yamabushi style.

However, although the work of changing the frame of the unwinding section of the off-machine coater in the conventional equipment is automated, the work of applying tape for the unwinding roll (tailoring work) is difficult to automate, and the challenge is how to automate it. Met. Therefore, at present, one or two workers perform the process manually, which has been a major bottleneck in automating the entire line, including the coating section and liquid preparation section.

In addition, since the work is done near rotating objects, it is not only dangerous, but also the accuracy of applying adhesive tape is 21 (No. 6).
Figure) had to be attached at 0.5 to 1 B, which caused high worker fatigue.

(Problems to be Solved by the Invention) The present invention attempts to solve the problems that occur due to the conventional automatic tape tailoring work for coiled paper being performed manually.

(Means for Solving the Problems) For this reason, the present invention provides a guide plate that detects that a new coil paper is transferred to a splicing tape application device and rises to guide the paper, and a guide plate that is guided by the guide plate. A phototube device that detects the unwound paper and stops the rotation of the new coiled paper.
A suction box is provided at the bottom of the guide plate to suction the paper that has been fed out, and while the paper is being attracted to the suction box, the paper is pulled up and tensed until the photocell device stops operating, and the tape application device is used to tape both sides of the paper. It has a structure in which the adhesive tape is pasted and then automatically cut by a cutting mechanism to form a lead part, and this is used as a means to solve the problem.

(Operation) The paper is fed out using the center support method, the paper is attracted to the suction box, and then the paper is pulled up a little to make it taut, and the lead portion is accurately formed and cut by controlling a phototube or the like.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Figs. 1 and 2 show the general configuration of a transfer method, an off-machine coater unwinding roll, and an automatic tape pasting device in an embodiment of the present invention. . In the figure, 3 is a transfer system, 6 is an unwinder device, 7 is a rail, 13 is an old coil paper, 14 is a new coil paper, 16 is a transfer arm,
18 is a transfer motor, 19 is a splice roll,
Reference numeral 20 denotes a knife, and since these are the same as in the conventional device, a detailed explanation thereof will be omitted here.

Furthermore, the transfer and sending mechanisms are the same as before.

Now, in FIGS. 1 and 2, the new coiled paper 14 from which defective paper has been removed by the rewinding machine, trimmed and stored is moved to the rail 7 by the stopper kicking device.
It rolls on the top via wheels 39, and is bound by an oil damper 32 at a splice tape applicator 31 installed at section B in FIG. Further, a clutch 36 operated by a cylinder 35 is attached to the spool 4° of the new coil paper 14.

Furthermore, a phototube detects the diameter of the new coil paper 14, and the guide plate 3
8 is raised so that the paper, including the new coiled paper 14 especially in the case of a small diameter, can be guided by the guide plate 38 and lowered. At the bottom of the guide plate 38, a suction box 43 that is longer in the X direction by the paper width of the new coiled paper 14 + α is installed, and the new coiled paper 14 is moved in the direction of arrow A 41 by an unwinder DC motor 47 via compling or the like. When the paper is rotated and fed out, the paper hangs down in front of the suction box 43 and stops when the phototube 44 is cut off, and the paper is brought into close contact with the paper by suction suction. Then, while applying suction suction, the paper is slightly rolled up in the direction of arrow B 42 until the phototube breaks, and wrinkles are removed from the paper. At that time, if the riding roll 37 is lowered, the surface layer of the new coiled paper 14 will be loosened, so it is raised, and when the paper is pulled up, the suction surface of the suction box 43 must also be parallel to the Y direction 46.

Next, the new coiled paper 14 to which the double-sided adhesive tape 12 has been pasted is subjected to a cutting operation, which in the case of the embodiment shown in FIG. 1 is performed by a COz laser cutting machine 49. In addition to this, mechanical cutting can also be performed. 50 is a sliding table, and a motor 51
It is now possible to move in the X direction 45.

Further, when the lead portion 2 as shown in FIG. 6 is automatically formed, the pressing of the riding roll 37 having a silicone rubber coating passes through the nip so that it can be easily peeled off. At this time, the adhesive side of the label paper is crimped onto the new coiled paper 14 to complete the lead end.The clutch 36 is released by the cylinder 35, and the new coiled paper 14 is transferred to the unwinder by the kicking device 52. 6 is sent to the abrasive feeding section via rails 7 and wheels 39. Note that the waste paper after laser cutting is discharged as a packet 53. Note that the automatic adhesive tape applying device 48 and the C6 laser cutting machine 49 are mounted on a sliding table 50.
It is also possible to have a structure that moves in the x and X directions by riding on the

Next, the operation of the embodiment configured as described above will be explained. When the new coil paper 14 stored by the unwinder device 6 is transferred to the splicing tape pasting device 31, the clutch 36 is attached and the photocell is detected. The guide plate 38 rises and guides the paper, and the unwinder D
The C motor 47 is rotated in the direction of arrow A 41 to feed out the paper.

The fed paper stops when the phototube 44 is cut off,
While suctioning the paper, wind it up a little until the phototube 44 breaks, and tension the paper in the suction box 43.

Next, double-sided adhesive tape 12 is applied by an automatic adhesive tape application device 48, and cut by a Co2 laser cutting machine 49 at a gap 21 of 0.5 to 1 fl. Note that this cutting may also be done mechanically. In this way, the lead part is formed fully automatically, and the adhesive side of the label paper is pressed onto the new coil paper 14 by passing through the pressing nib of the riding roll 37 coated with silicone rubber. ” The new coiled paper 14 having the lead portion formed in this way is transferred to the paper feeding section of the unwinder device 6 and fed to the old coiled paper 13 that is being fed, and the splicing tape pasting device 31 is The next new coil paper 14 is automatically loaded, and the formation operation of the lead portion 2 is performed.

(Effects of the Invention) The present invention is configured as explained in detail above, and the tape pasting work is completely automated, making it possible to save labor, and with accurate repeatability, the success rate of frame replacement is increased. , it is possible to reduce production costs.

If computer control is used, it will be possible to respond to various tails and specifications by changing inputs or calling. Further, in the present invention, commercially available double-sided adhesive tapes and commercially available tab label paper can also be used.

[Brief explanation of the drawing]

Fig. 1 is a side view of an automatic coil paper tape tailoring device showing an embodiment of the present invention, Fig. 2 is a front view thereof, and Fig. 3 is a schematic diagram illustrating a reframe state showing an example of a conventional transfer method. A side view, FIG. 4 is a view in the direction of arrow A in FIG. 3, and FIG. 5 is a side view showing the arrangement of splice rolls in another transfer method.
FIGS. 6 and 7 are front views showing the doglegged and Yamabushi lead parts. Explanation of main parts of the figure 14 - New coil paper 31 - Splice tape applicator 37 -- Riding roll 38 - Guide plate 43 - Suction box 44 - Phototube 48 - Automatic adhesive tape applicator 49 - Co ! Laser cutting machine patent applicant: Mitsubishi Heavy Industries, Ltd.
Kanzaki Paper Co., Ltd.

Claims (1)

[Claims] A guide plate that detects that the new coiled paper has been transferred to the splicing tape applicator and rises to guide the paper.A guide plate that detects the paper that has been fed out guided by the guide plate and stops the rotation of the new coiled paper. The phototube device is provided with a suction box provided at the bottom of the guide plate to suck the paper that has been fed out, and while the paper is being attracted to the suction box, the paper is pulled up and tensed until the phototube device stops operating, and the tape is pasted. An automatic coil paper tape making device characterized in that a double-sided adhesive tape is pasted by the device and then automatically cut by a cutting mechanism to form a lead part.