JPH0616295A - Sheet splicing method and device - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically splices the sheet to be transferred next without shifting the sheet in the horizontal direction. A lateral traveling position of the sheet 2 being transported in the longitudinal direction and a lateral position of the wound body 5 of the next sheet 4 are detected by the sensors 3 and 6, respectively, to detect the lateral direction of the sheet 2 being transported. Until the running position and the lateral position of the winding body 5 of the next sheet 4 coincide with each other, the holder of the winding body 5 of the next sheet 4 is reciprocated by the drive means controlled based on the above detection value, and is transferred. The lateral running position of the inner sheet 2 and the lateral position of the wound body 5 of the next sheet 4 are matched, and the sheet 2 being transferred and the next sheet 4 are joined together.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet which is fed from a roll-shaped wound body such as an adhesive tape substrate sheet or a release paper sheet, and which is being transported next, in the lateral direction TECHNICAL FIELD The present invention relates to a sheet joining method and apparatus capable of automatically joining sheets without shifting.

[0002]

2. Description of the Related Art When a sheet fed from a roll-shaped roll is being conveyed and the remaining sheet is small, the sheet fed from the next roll-shaped roll is joined to the end of the sheet being transferred. It is common practice to continuously transfer the powder to the next step. In such a case, as a sheet joining device, for example, a biaxial turret type device as shown in FIGS. 3 to 4 is used. FIG. 3 is a front view of the above device, and FIG. 4 is a plan view. Reference numeral 30 is a twin-screw turret type unwinder, and 45 is a sheet joining device. Unwinder 30
Is a pair of two orthogonal turret plates 31, 32,
Holders 8, 9, 10, 11 for the sheet rolls 7, 5;
A screw shaft 33 for reciprocating the holders 8, 9, 10, 11
It comprises 34, 35, 36 and a pedestal 37. The two turret plates 31 are rotatably attached to the pedestal 37 with the pins 38 as fulcrums.
7 of the sheet 2 being transferred to the sheet and the sheet 4 to be transferred next
And the sheet 2 and the sheet 4 on the other side.
A guide roll 39 for guiding the is attached.
The screw shafts 33, 34 are attached to the turret plate 32, the screw shafts 35,
36 are respectively screwed into the turret plate 31, and the holders 8, 9, 10, 11 are rotatably attached to the tips thereof.
Handles 40, 41, 42, 43 are attached to the other end. The wound bodies 7 and 5 are handles 40, 41 and 4 respectively.
It is held by holders 8, 9 and 10, 11 which reciprocate in the X arrow direction by the rotation of 2, 43.

The sheet splicing device 45 comprises an arm 48 rotatable about a pin 44 as a fulcrum, a guide roll 46 for guiding the sheet 2 being transferred, and a pedestal 47.
A pin 44 and a guide roll 46 are attached to the arm 4
A pressing roll 49 and a cutting blade 50 are attached to the tip of the roller 8. The sheet 2 delivered from the rolled-up body 7 is conveyed in the arrow F direction via the guide rolls 39 and 46.

When the number of sheets 2 being transferred decreases, the handles 41 and 43 are rotated to move the holders 10 and 11,
The lateral position of the wound body 5 of the sheet 4 is moved so as to match the lateral position of the wound body 7 of the sheet 2 being transferred,
Next, the arm 48 of the sheet splicing device 45 is rotated in the Y direction with the pin 44 as a fulcrum to hold the sheet 2 and press the roll 49.
Then, it is pressed against the wound body 5 of the next sheet 4. A splicing tape for splicing is previously attached to the tip of the wound body 5, and the sheet 2 and the sheet 4 are spliced by this splicing tape.
At the same time, the remaining sheet of the sheet 2 is cut by the cutting blade 50,
Next, the wound body 5 of the sheet 4 is rotated in the direction of the arrow C to rotate to a predetermined position (position of the wound body 7) at the time of sheet transfer.
After that, this process is repeated and the sheets are successively spliced and continuously transferred to the next step.

[0005]

By the way, as shown in FIG. 5, when the sheet 2 and the sheet 4 are spliced with poor accuracy of the splicing position and the splicing deviation 28 occurs at the splicing portion 51, the sheet There is a problem that the adhesive surface 53 of the joint tape 52 that is not adhered to either the sheet 2 or the sheet 4 is adhered to a non-adhesive portion.

Depending on the sheet, the side edge portion may be cut and removed as a defective portion, in which case FIG.
As shown in FIG. 3, both ends of the sheet 2 being transferred are slit and removed as ears 55 by the slit cutter 54 and removed. At this time, if the joint deviation 28 occurs between the sheet 2 and the sheet 4 as described above, the joint portion 51 of the sheet 2 and the sheet 4 is formed.
In some cases, the ears 55 were cut off and became discontinuous, resulting in a problem in the ear winding line.

Therefore, when joining the sheet 4 to the sheet 2, first, the operator first measures the lateral position of the wound body 7 of the sheet 2, and then the position of the wound body 5 of the next sheet 4, and shifts them. Was calculated and the holders 10 and 11 were moved by rotating the handles 41 and 43 by hand so that the positions of the wound body 7 and the wound body 5 in the lateral direction coincide with each other. For this reason, it takes a lot of man-hours to align the joint position, the accuracy of the joint position is poor due to human error of workers, and the influence of individual difference is large.

In view of the above points, the present invention is a sheet joining method and apparatus capable of automatically joining a sheet to be next transported to a sheet being transported in the lateral direction without causing misalignment. The purpose is to provide.

[0009]

According to another aspect of the present invention, there is provided a sheet splicing method, wherein a lateral traveling position of a sheet being transported in the longitudinal direction and a lateral position of a wound body of the next sheet are respectively detected by sensors. Detecting and driving the holder of the roll of the next sheet to be controlled based on the above detected value until the running position of the roll of the next sheet and the position of the roll of the next sheet coincide with each other. A reciprocating movement by means to make the lateral traveling position of the sheet being transferred coincide with the lateral position of the wound body of the next sheet, and joining the sheet being transferred and the next sheet. Is.

According to a second aspect of the present invention, there is provided a sheet splicing device, which includes a plurality of photoelectric tube sensors for detecting a lateral traveling position of a sheet being transported in the longitudinal direction and a lateral position of a wound body of the next sheet. It is characterized by comprising a holder for a wound body of sheets, a drive means for reciprocating the holder, and a controller for controlling the drive means based on the detected value.

[0011]

According to the first aspect of the invention, the lateral traveling position of the sheet being transported in the longitudinal direction and the lateral position of the wound body of the next sheet are respectively detected by the sensors, and the lateral position of the sheet being transported is detected. Until the running position in the direction and the lateral position of the roll of the next sheet coincide with each other, the holder of the roll of the next sheet is controlled by the drive means based on the above-mentioned detection value and reciprocates, so during transfer. The horizontal traveling position of the sheet and the horizontal position of the wound body of the next sheet are automatically matched. Further, the lateral traveling position of the sheet being transferred and the lateral position of the wound body of the next sheet are matched, and the sheet being transferred and the next sheet are joined together. Are spliced in the lateral direction without causing splicing.

According to the second aspect of the present invention, the lateral traveling position of the sheet being transported in the longitudinal direction and the lateral position of the wound body of the next sheet are detected by a plurality of photoelectric tube sensors, and based on the detected values. The drive means is controlled to reciprocate the holder for the sheet roll body, so that the lateral traveling position of the sheet being transported and the lateral position of the roll body of the next sheet coincide with each other.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the sheet joining method and apparatus of the present invention will be described below with reference to the drawings. 1 and 2 are drawings of an example of the sheet joining apparatus of the present invention. 1 is a front view and FIG. 2 is a plan view. 1 is a sheet splicing device of the present invention, which detects a plurality of sheet photoelectric tube sensors 3 for detecting a lateral traveling position of a sheet 2 being transferred and a lateral position of a wound body 5 of a next sheet 4. And a servo for reciprocating the holders 8, 9, 10, 11 of the wound bodies 7, 5 of the sheets 2, 4, which are controlled based on the detection values of the plurality of photoelectric tube sensors 6, 6. Motor 1
4 and 15 and air cylinders 12 and 13, and servomotors 14 and 15 based on the detected values.
And a controller 60, 61 for controlling the. The servomotor 14 detects the lateral position of the wound body 7 of the sheet 2 being transferred by the plurality of photoelectric tube sensors 3 so that the traveling position of the sheet 2 being transferred is always at a predetermined position. Controller 61 based on the lateral running position of the seat 2 of
Is controlled by. The servo motor 15 winds the next sheet 4 detected by the plurality of photoelectric tube sensors 6 so that the lateral position of the wound body 5 of the next sheet 4 coincides with the lateral traveling position of the sheet 2 being transferred. Lateral position of the body 5,
And the sheet 2 being transferred detected by the plurality of photoelectric tube sensors 3
It is controlled by the controller 60 based on the lateral traveling position of the vehicle. 16, 17, 18, 19 are sprockets, 2
0 and 21 are chains. The screw shafts 22 and 23 are screwed into the sprockets 17 and 19, respectively.
7 and 19 are guided so as not to move laterally. The screw shafts 22 and 23 are provided with key grooves, and the turret plate 29 is provided with rotation stopping keys 25 and 26 for reciprocating the screw shafts 22 and 23. Air cylinders 12 and 13 are mounted on the turret plate 24.

39 and 46 are guide rolls for guiding the sheet 2 to be transferred, 45 is a sheet joining device for joining the sheet 2 and the sheet 7, 49 is a press roll, and 50 is a press roll.
Is a cutting blade. These are the same as conventional ones.

Next, the sheet joining method of the present invention will be described. The wound body 7 of the sheet 2 being transferred includes the holder 8 mounted on the tip of the screw shaft 22 and the rod 2 of the air cylinder 12.
It is held by the holder 9 attached to the tip of the sheet 7, and the next sheet 4 is joined to the sheet 2 being transferred. First, the lateral traveling position of the sheet 2 being transferred is detected by the plurality of photoelectric tube sensors 3. The lateral position of the wound body 7 of the sheet 2 being transported is determined by the plurality of photoelectric tube sensors 3 so that the lateral traveling position of the sheet 2 being transported is always at a predetermined position. The servo motor 14 controlled by the controller 60 based on the lateral traveling position.
Is controlled by. The lateral position of the wound body 7 is moved by driving the sprocket 17 by driving the servomotor 14, and the screw shaft 22 having the holder 8 attached to the tip thereof is moved in the X arrow direction. Since the other holder 9 is reciprocally movable by the air cylinder 12, it reciprocates in association with the reciprocating movement of the holder 8.

To join the sheet 2 and the next sheet 4, first, the wound body 5 of the sheet 4 is mounted between the holders 10 and 11. Next, the lateral position of the wound body 5 is detected by the plurality of photoelectric tube sensors 6. Next, the servo motor 15 is driven, and the sheet 2 being transferred detected by the plurality of phototube sensors 3 is being transferred.
The horizontal position of the wound body 5 is moved until it coincides with the horizontal traveling position of. The lateral position of the wound body 5 and the lateral traveling position of the sheet 2 during transfer are matched by matching the shield positions of the plurality of photoelectric tube sensors 6 and 3.
The lateral position of the wound body 5 and the lateral traveling position of the sheet 2 being transferred are matched, and the sheet 2 being transferred and the next sheet 4 are joined together. As a result, the sheet 2 and the sheet 4 are joined to each other without causing the joining deviation 28 in the lateral direction.

[0017]

According to the first aspect of the present invention, the lateral running position of the sheet being transported in the longitudinal direction and the lateral position of the wound body of the next sheet are detected by the sensors, respectively. Until the lateral traveling position of the sheet and the lateral position of the wound body of the next sheet coincide with each other, the holder of the wound body of the next sheet is reciprocated by the drive means that is controlled based on the detected value. Since the lateral traveling position of the sheet being transported and the lateral position of the wound body of the next sheet are matched and the sheet being transported and the next sheet are joined together, the lateral traveling position of the sheet being transported. And the position of the next sheet in the lateral direction of the wound body can be automatically matched, and the sheet being transferred and the next sheet can be automatically joined in the lateral direction without causing misalignment. it can.

According to the second aspect of the invention, the lateral traveling position of the sheet being transported in the longitudinal direction and the lateral position of the wound body of the next sheet are detected by a plurality of photoelectric tube sensors,
Based on this detected value, the drive means is controlled to reciprocate the holder for the sheet roll, so that the lateral traveling position of the sheet being transferred and the lateral position of the roll of the next sheet coincide with each other. It is possible to automatically and accurately match the lateral traveling position of the sheet being transported and the lateral position of the wound body of the next sheet.

As described above, since the sheet being transferred and the next sheet can be automatically joined in the lateral direction without causing joining deviation, the number of man-hours required for joining positioning work can be reduced and a problem due to poor joining position accuracy can be achieved. Can be resolved.

[Brief description of drawings]

FIG. 1 is a front view of an example of a sheet joining device of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view of a conventional sheet joining device.

FIG. 4 is a plan view of FIG.

FIG. 5 is a plan view showing a defective state of a conventional sheet joining position.

FIG. 6 is a plan view showing a cut state of the ears of the conventional sheet.

[Explanation of symbols]

 1 splicing device 2,4 sheet 3,6 photoelectric tube sensor 5,7 wound body 8,9,10,11 holder 12,13 air cylinder 14,15 servo motor 22,23 screw shaft 24,29 turret plate 25,26 Key 27 Rod 28 Splicing shift 30 Unwinder 39,46 Guide roll 45 Sheet splicing device 48 Arm 49 Presser roll 60,61 Controller

Claims (2)

[Claims] 1. A lateral traveling position of a sheet being transported in the longitudinal direction and a lateral traveling position of a wound body of the next sheet are respectively detected by sensors, and the lateral traveling position of the sheet being transported and the next traveling position are detected. Until the lateral position of the wound body of the sheet coincides, the holder of the wound body of the next sheet is reciprocated by the drive means controlled on the basis of the above detection value, and the lateral traveling position of the sheet during transfer. And the lateral position of the wound body of the next sheet are matched, and the sheet being transferred and the next sheet are joined together. 2. A plurality of photoelectric tube sensors for respectively detecting a lateral traveling position of a sheet being transported in the longitudinal direction and a lateral position of a wound body of the next sheet, a holder for the wound body of the sheet, and A sheet joining apparatus comprising: a drive unit that reciprocates a holder, and a controller that controls the drive unit based on the detected value.