JP3801357B2 - Web splicing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a splicing device for webs such as paper, plastic film, and metal foil.
[0002]
[Prior art]
The conventional splicing device manually cuts and holds the tail end of the old web, which is unwound from the unwinder, in the process of discharging the remaining web spool with the lifter from the unwinder. is doing. After the new web is set on the unwinder, the tip of the new web is manually passed through the web feed line, and the tip of the web is cut by the person who enters the line. . Finally, the tail end portion of the old original web and the front end portion of the new original web are overlapped and tape-connected in a joint shape.
[0003]
[Problems to be solved by the invention]
However, the prior art has the following problems.
(1) The tail end portion of the old original web is cut and held manually during the discharge process of the remaining paper spool, which is complicated.
[0004]
{Circle around (2)} The sheet passing of the new web and cutting of the tip thereof, and the connection of the old and new web are also done manually and are complicated.
[0005]
(3) The tail end of the old web and the tip of the new web are overlapped and connected in the form of a joint, and the step formed in this overlap joint is on the winding start side wound by the winder. Transfer to a multi-layer web to increase the generation of waste paper.
[0006]
An object of the present invention is to simplify the connection work of old and new original webs to improve the connection work efficiency and to improve the connection quality of the webs.
[0007]
[Means for Solving the Problems]
The present invention according to claim 1 is a web splicing device for connecting a front end portion of a new original web unwound from an unwinder to a tail end portion of an old original web, and is provided along a web feed line. The web introduction roll and the web transport roll, which are arranged on the entry side and the exit side of the splice work area, respectively, are arranged at two positions along the web feed line in the splice work area. Between the first and second web suction boxes that can be attached to and detached from the feed line, and the first and second web suction boxes in the splicing work area, the web feed line is disposed along the web feed line. A freely rotatable return roller that is detachable from the web feed line, and a first roller suction button positioned upstream of the return roller in the splice work area. Between the cutting device and the connecting device disposed between the web and the first nip roll for clamping the web between the web introduction roll, the reject roll provided along the web reject line, and the reject roll. A second nip roll that can freely rotate to pinch the web, and a return roller that swivels between a position along the web feed line and a position along the reject line, and passes through the reject roll from the web introduction roll to the reject roll. And a turning device that forms a line in a descending gradient from the upstream side toward the downstream side.
[0008]
[Action]
According to the first aspect of the present invention, the following effects (1) to (3) are obtained.
(1) The old web is cut by a cutting device while being sucked and held by the first and second web suction boxes on the web feeding line unwound from the unwinding machine. The tail end portion of the original web is held by the second web suction box. That is, the remaining web spool of the old web can be cut without being discharged from the unwinder, and the cut tail end portion can be held.
[0009]
(2) The new web is fed by the drive of the web introduction roll while being pressed by the web introduction roll by the first nip roll, and is rejected in a descending manner through the return roll from the web introduction roll through the reject roll. The paper is passed smoothly so as to sag into the line. Then, after the new raw web is clamped between the second nip roll and the reject roll, when the return roller is turned from the reject line side to the position along the web feed line, it is locked by the first nip roll and freely rotatable. The web returned to the second nip roll while maintaining the necessary tension is wound around the return roller and positioned along the web feed line. The new raw web positioned on the web feed line is sucked and held by the first web suction box, and then cut by the cutting device. The front end portion of the cut new original web is held by the first web suction box, and is connected to the tail end of the old original web held by the second web suction box by the connecting device. The waste paper from which the new web is cut can be automatically discharged from the reject line by its own weight by removing the second nip roll.
[0010]
(3) The tail end of the old web and the tip of the new web are cut at the same position by the same cutting device, and both are connected in the form of a butt joint, not in the form of an overlapping joint. Quality can be improved.
[0011]
By the above (1) and (2), it is possible to simplify the connection work of the old and new original fabric webs and improve the connection work efficiency. Further, the connection quality of the web can be improved by the above item (3).
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic diagram showing a splicing device, FIG. 2 is a normal operation state diagram, FIG. 3 is an old original web cutting preparation state diagram, FIG. 4 is an old original web cutting completion state diagram, and FIG. 5 is a new original web passing sheet. FIG. 6 is a state diagram of completion of the new web web passing, FIG. 7 is a state diagram of cutting the new web web, and FIG. 8 is a taping state diagram.
[0013]
As shown in FIG. 1, the splicing device 10 connects the front end portion of the new original web B unwound from the unwinding machine 1 to the return portion of the old original web A. The splicing device 10 has the following configurations (a) to (g).
[0014]
(a) It has a web introduction roll 11 and a web transport roll 12 arranged on the entry side and the exit side of a splice work area provided along the web feed line.
[0015]
(b) It has first and second web suction boxes 13 and 14 disposed at two positions along the lower surface of the web feed line in the splice work area. The first web suction box 13 can be attached to and detached from the web feed line by a cylinder 13A, and the second web suction box 14 can be attached and detached by a cylinder 14A. That is, the first and second web suction boxes 13 and 14 are “attached” to suck and hold the webs A and B during the splicing operation, and are rubbed into the webs A and B during the web feeding (normal operation state). It is "departed" so as not to give scratches.
[0016]
(c) Between the first and second web suction boxes 13 and 14 in the splicing work area, there is a return roller 15 that is disposed at a position along the lower surface of the web feed line and that can freely rotate. The return roller 15 can be attached to and detached from the web feed line in the same manner as the first web suction box 13 by being integrally supported by the first web suction box 13, for example.
[0017]
(d) In the splicing work area, between the return roller 15 and the first web suction box 13 located on the upstream side thereof, a cutting device 16 and a connecting device 17 disposed at a position along the upper surface of the web feed line. And have. The cutting device 16 is supported by the transverse arm 16A and the connecting device 17 is supported by the transverse arm 17A, respectively, and can move so as to cross the web feed line.
[0018]
(e) It has the 1st nip roll 18 which clamps the webs A and B between the web introduction rolls 11. The first nip roll 18 is supported by a swing arm 18B that is swung by a cylinder 18A. At this time, the web introduction roll 11 (or the first nip roll 18) can be driven independently, and the web B can be fed into the reject line, or the web B can be pinched and locked.
[0019]
(f) a reject roll 21 provided along a reject line branched from the feed lines of the webs A and B, and a freely rotatable second nip roll 22 that sandwiches the webs A and B between the reject rolls 21 Have. The second nip roll 22 is supported by a swing arm 22B that swings by a cylinder 22A.
[0020]
(g) The first web suction box 13 and the return roller 15 are mounted on the turning device 23. The turning device 23 is driven by the cylinder 23A and turns the return roller 15 between a position along the web feed line (splice work area) and a position along the reject line. Thereby, the turning device 23 forms a reject line that passes from the web introduction roll 11 through the return roller 15 and the reject roll 21 in a downward gradient from the upstream side toward the downstream side.
[0021]
Hereinafter, the splicing operation of the webs A and B by the splicing device 10 will be described.
(1) Normal operation state (Fig. 2)
The first and second web suction boxes 13 and 14 during normal operation are in a state of opening a gap with the original web A during operation that runs on the web feeding line between the web introduction roll 11 and the web transport roll 12. It has become.
[0022]
(2) Former web cut preparation state (Fig. 3)
The first and second web suction boxes 13 and 14 are positioned by the cylinders 13A and 14A until they are in contact with or slightly pushed into the original web A stopped in a tension-holding state. The original web A is held.
[0023]
(3) Old web cut state (Fig. 4)
The upper blade 101 of the cutting device 16 travels in the width direction of the old original web A by the movement of the transverse arm 16 </ b> A, and the lower blade 102 disposed between the first web suction box 13 and the return roller 15. In the meantime, the old web A is cut (FIG. 3B). After this cutting is completed, the first web suction box 13 stops the vacuum, moves to a position during normal operation, and stands by.
[0024]
(4) Nihara original web passing condition (Figure 5)
In preparation for passing the new web web B, the first web suction box 13 and the return roller 15 are swung to a lower reject line by the cylinder 23A of the swiveling device 23 and wait.
[0025]
Simultaneously with the operation of the turning device 23, the first nip roll 18 moves by the cylinder 18A and waits until the web introduction roll 11 is pressurized.
[0026]
After driving the web introduction roll 11, the new raw web B on the unwinding machine 1 is rotated so that the leading end is guided by the first guide plate 31 and enters the nip point between the web introduction roll 11 and the first nip roll 18. To.
[0027]
The new web web B passes over the second guide plate 32, the third guide plate 33, the first web suction box 13, the return roller 15, and the fourth guide plate 34, and is passed downward from the outlet of the reject roll 21. The
[0028]
(5) Niihara web passing completion (Fig. 6)
In a state where the full-width web B has been passed through the entire width, the second nip roll 22 is moved by the cylinder 22A and waits until the reject roll 21 is pressurized (the pressurization is applied to the cutting of the new width web B). Required pressure).
[0029]
(6) New raw web cut state (Fig. 7)
The third guide plate 33, the first web suction box 13, and the return roller 15 on the turning device 23 are turned to the web feed line.
[0030]
Due to the turning, the web travel distance between the web introduction roll 11 and the reject roll 21 is increased, so that the fed new web web B on the outlet side of the reject roll 21 is returned with the necessary tension maintained.
[0031]
During the above-described turning operation of the turning device 23, the cut end of the old web A is lifted with compressed air discharged from the air blowing pipe 41 (FIG. 3B) at the inlet of the second web suction box 14, The first web suction box 13 and the return roller 15 that are turning are prevented from being caught.
[0032]
After the turning of the turning device 23 is completed, the first web suction box 13 rises to the web cutting position and starts vacuuming the new web web B.
[0033]
The new original web B is cut by the cutting device 16 simultaneously with the cutting operation of the old original web A.
[0034]
(7) Taping condition (Fig. 8)
After the cutting of the new web web B is completed, the second nip roll 22 is opened, and the joint loss paper C separated from the new web web B is dropped and discharged downward by its own weight.
[0035]
The cutting tip of the new web web B and the cutting tail of the old web A are connected by the connecting device 17 without overlapping.
[0036]
(8) Taping completed state (Fig. 1)
Both the web suction boxes 13 and 14 stop the vacuum and move to the operating position. The first nip roll 18 is opened. As a result, all the devices are in the normal operation state position.
[0037]
Therefore, according to this embodiment, there are the following operations.
(1) The former web A is cut by the cutting device 16 while being sucked and held by the first and second web suction boxes 13 and 14 on the web feeding line unwound from the unwinding machine 1. The tail end portion of the cut old original web A is held by the second web suction box 14. That is, the remaining paper spool of the old web A can be cut without being discharged from the unwinder 1, and the cut tail end portion can be held.
[0038]
(2) The new raw web B is fed by driving the web introduction roll 11 while being pressed between the web introduction roll 11 by the first nip roll 18, and rejected from the web introduction roll 11 through the return roller 15 and the reject roll 21. The paper is smoothly passed so as to be drooped into the reject line for the downward slope passing through. Then, after the new raw web B is clamped between the second nip roll 22 and the reject roll 21, the return roller 15 is turned from the reject line side to the position along the web feed line, and is locked by the first nip roll 18. The web that is returned to the second nip roll 22 that can rotate freely is wound around the return roller 15 and positioned along the web feed line. The new web web B positioned on the web feed line is sucked and held by the first web suction box 13 and then cut by the cutting device 16. The front end of the cut new original web B is held in the first web suction box 13 and connected to the tail end of the old original web A held by the second web suction box 14 by the connecting device 17. . The broken paper from which the original web B has been cut can be automatically discharged from the reject line by its own weight by removing the second nip roll 22.
[0039]
(3) The tail end portion of the old original web A and the front end portion of the new original web B are cut at the same position by the same cutting device 16, and both are connected in a butt joint shape to form an overlap joint shape. Therefore, connection quality can be improved.
[0040]
Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. However, it is included in the present invention.
[0041]
【The invention's effect】
As described above, according to the present invention, it is possible to simplify the connection work of the old and new original fabric webs to improve the connection work efficiency and to improve the web connection quality.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a splicing device.
FIG. 2 is a normal operation state diagram.
FIG. 3 is a diagram showing a preparation state for cutting an old web.
FIG. 4 is a diagram showing a state in which an old web cut is completed.
FIG. 5 is a state diagram of a new original web passing sheet.
FIG. 6 is a diagram illustrating a state in which a new original web passing is completed.
FIG. 7 is a state diagram of cutting a new raw web.
FIG. 8 is a taping state diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Unwinding machine 10 Splice apparatus 11 Web introduction roll 12 Web conveyance roll 13 1st web suction box 14 2nd web suction box 15 Return roller 16 Cutting device 17 Connection apparatus 18 1st nip roll 21 Reject roll 22 2nd nip roll 23 Turning apparatus

Claims (1)

In the splicing device of the web that connects the tip of the new web that is unwound from the unwinder to the tail of the old web,
A web introduction roll and a web transport roll arranged on each of the entry side and the exit side of the splice work area provided along the web feed line;
A first and a second web suction box disposed in each of two positions along the web feed line in the splicing work area and detachable from the web feed line;
A freely rotatable return roller that is disposed between the first and second web suction boxes in the splice work area at a position along the web feed line and is detachable from the web feed line. When,
A cutting device and a connecting device arranged between the return roller and the first web suction box located upstream thereof in the splicing work area;
A first nip roll for clamping the web between the web introduction roll;
A reject roll provided along a reject line of the web, a second nip roll capable of freely rotating to press the web between the reject roll,
The return roller is swung between a position along the web feed line and a position along the reject line, and the reject line passing through the reject roll from the web introduction roll through the return roller has a downward slope from the upstream side to the downstream side. A splicing device for a web, characterized in that it has a swiveling device to be formed.

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