JPH02225032A - Starching position setting method for unwider - Google Patents

Abstract

PURPOSE:To set a starching position and enhance efficiency and safety of environment by sensing the phase difference between the starching position of a winding roll and a mark of a clutch by means of counted pulse. CONSTITUTION:A starching position setting push bottom of a control panel is pushed and preparation instruction is issued. A clutch 16 is in, and an AC motor of a unwinder control device is rotated gradually, and when the starching position of a new winding roll 14 is confirmed visually to be horizontal, a starching mark push button of the control panel is pushed. When said push bottom is pushed, pulse counting is started. The moment that a mark of an indication board 19 of the clutch 16 is sensed by a proximity switch 21 and the pulse numbers counted up to that moment is read to compute the phase difference theta between the starching position and the marked position. The starching position on the new winding roll 14 is determined accurately by said process, and the paper connection of the new winding roll 14 and the winding roll can be carried out accurately without unevenness of the time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gluing position setting method applied to an unwinder, which is one of paper processing devices.

[Conventional technology]

4 and 5 are side views of a conventional unwinder. The unwinder mainly includes a frame 1, a transfer arm 2, a splicing device 6 including a splicing roll 4 and a paper cutting device 7, a clamp 5, and an unwinder braking device 11.
and a transfer braking device 12.

A new take-up roll 1 is attached to the clamp 5 provided on the frame 1.
The positions of both shaft ends of the spool 13 of No. 4 are fixed, and the spool 13 rotates or stops when a clutch 16 driven by a reduction gear I5 forming the unwinder braking device 11 is turned on or off. Therefore, when the clutch 16 is in the engaged position, the new take-up roll 14 is driven by the take-up roll 14' of the transfer arm 2, when the diameter of the take-up roll 14' is reduced to a predetermined diameter. The speed is the same as the speed of the paper being fed out. When the speed reaches the same speed, the paper on the take-up roll 14', whose diameter has become smaller, is pressed against the new take-up roll 14 by the splice roll 4 of the splicing device 6, and is attached to the adhesive tape attached to the new take-up roll 14. After adhering, the paper cutting device 7 cuts the paper. The setting of the gluing position of the new take-up roll 14 necessary for the paper splicing described above is conventionally set as A and B in FIG. 3.

As shown by CK, the following steps (1) to (4) were followed.

(1) The clamp 16 is fitted into the shaft end of the spool 13 that supports the new take-up roll 14 clamped on the frame 1 by the crank 5. (Clutch person position)...
Figure A (2) The motor (AC motor) for the unwinder braking device 11 is driven and rotated until the gluing position of the new take-up roll 14 is horizontal (X position) and stopped by visual inspection.

...Figure B (3) Clutch shifter 1 operated by air cylinder 18
7 to the cut position and remove the Kula Sochi 16 from the shaft end of the spool 13. (Clutch disengaged position) (4) Drive and rotate only the clutch 16 using the AC motor, and align the gluing position with the red mark (near object) on the display board 19 attached to the clutch 16. Since the setting of the gluing position is completed when the figure is 0 or above, the clutch 16 is engaged to drive the new take-up roll 14.

[Problem to be solved by the invention]

The conventional unwinder gluing position setting method described above has the following problems to be solved.

(1) Since the unwinder control device is located on the drive side, the oiler, which is always on the operation side, must go to the drive side and visually align the gluing position and the mark while operating the clutch, which is troublesome. It takes time and effort.

(2) Since positioning is done by visual inspection, the set gluing position is not accurate and may vary due to viewing position, viewing angle, individual differences, etc.

[Means to solve the problem]

The present invention provides a means for solving the above-mentioned problems when automatic paper splicing is performed on a winding roll in an unwinder.

A preparatory command is issued by issuing a gluing position setting signal, confirming that the gluing position of the winding roll has reached an arbitrary predetermined position, and at the same time issuing a gluing mark arrival signal, a pulse is set by separately provided means. Start counting.

The moment when the mark of the clutch of the unwinder braking device provided on the unwinder comes to the arbitrary predetermined position is detected by a proximity switch, and the gluing position and the mark are determined by the pulses counted up to this moment. An object of the present invention is to provide a method for setting the gluing position of an unwinder, which is characterized in that the gluing position of the winding roll is set by detecting the phase difference between the two.

[For production]

Since the present invention is configured as described above, it has the following effects.

(1) When the gluing position is set at a predetermined arbitrary position, the phase difference between the gluing position and the mark can be determined by pulse counting, so the automatic automatic actuator operates in synchronization with the clutch mark of the unwinder braking device. Automatic splicing using the 0-star is performed smoothly.

(2) Since the phase difference between the gluing position and the mark can be determined as described in (11) above, the conventional process of aligning the mark with the gluing position is unnecessary.

〔Example〕

A method according to an embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

FIG. 1 shows an unwinder braking device 11 incorporating the gluing position setting method of this embodiment. Except as shown, the fourth conventional example,
Components that are the same as those in FIG. 5 and similar to those of the conventional example are given the same reference numerals, and explanations thereof will be omitted. In the figure, an acrylic display board 19 that rotates together with the clutch 16 is provided at the clutch 16, and a mark (red) marked on the display board 19 is attached to the drive side of the unwinder and the adjacent body with the K phase aligned. Proximity switch 21 attached to the fixed member of
It is configured to detect the moment when the landmark reaches a horizontal position. The gluing position setting method using this configuration will be explained with reference to FIG. 2, and the steps are as follows.

(1) Press the gluing position setting pushbutton on the control panel (not shown) to issue a preparation instruction.

(2) Set the clutch 16 to the engaged position, slowly rotate the AC motor (not shown) of the unwinder braking device 11 (Figure A), and visually check when the gluing position of the new take-up roll 14 becomes horizontal. and press the glue mark pushbutton on the control panel.

Pressing this push button starts pulse counting (Figure B)
.

(3) Display board 19 of clutch 16 with proximity switch 21
Detect the moment when the 0 mark becomes horizontal, read the number of pulses counted up to that point, and find the phase difference θ between the gluing position and the mark position.
Calculate (angle #).

Through the above steps, the gluing position on the new take-up roll 14 is accurately determined, and the new take-up roll 14 and take-up roll 14'
The paper splicing is always inconsistent (accurately done).Also, the main work of the operator is to operate the control panel, so you have to go to the drive side and operate the clutch like in the past, or set the gluing position and marks. This method is preferable from the standpoint of safety and health, as it eliminates the need to pay attention to the positioning of the images.

〔Effect of the invention〕

Since the present invention is configured as described above, it has the following effects.

(1) The gluing position can be set simply by detecting the phase difference between the gluing position of the take-up roll and the clutch mark, which is different from the conventional method.
There is no need to make any effort to match the mark to the glue location, making setting easy, accurate, and consistent.

(2) Since most of the gluing position settings can be automated, the operator's main work is to operate the control panel, and unlike conventional methods, it is no longer necessary to go back and forth to the drive side to operate the clutch or monitor the movement of the clutch mark. This eliminates the need for additional processes, making it more efficient and at the same time improving the safety and health environment.

[Brief explanation of the drawing]

FIG. 1 is a diagram of an unwinder braking device used in a method according to an embodiment of the present invention, where A is a front view, B is a view taken along the line B-B of A, and FIG.
Fig. 2 is an explanatory diagram of the procedure for setting the gluing position by the method of the above embodiment, Fig. 3 is an explanatory diagram of the conventional gluing position setting procedure, and Fig. 4 is an illustration of the unwinder used in the conventional method. The side view, FIG. 5, is a front view of FIG. 6... Splice device 11... Unwinder braking device 14... New take-up roll 14'... Take-up roll 1
6...Clutch application...Proximity body 19...Display board 21...Proximity switch

Claims (1)

[Claims] When automatic paper splicing is performed on the winding roll in the unwinder, a gluing position setting signal is issued to issue a preparation command, and it is confirmed that the gluing position of the winding roll has reached an arbitrary predetermined position. At the same time as the gluing mark arrival signal is issued, a pulse count is started by means provided separately, and the moment when the mark of the clutch of the unwinder braking device provided on the unwinder comes to the arbitrary predetermined position is detected by means of a proximity switch. A method for setting the gluing position of an unwinder, characterized in that the gluing position of the winding roll is set by detecting the phase difference between the gluing position and the mark using the pulses detected and counted up to this moment. .