JPS5936059A - Slitter - Google Patents

Abstract

PURPOSE:To make it possible to control most suitably and accurately the winding tension for every winding core by mounting driving DC motors on plural winding cores each used for winding a slit film. CONSTITUTION:DC motors 18 are respectively mounted on plural sets of winding arms 1 each supporting a winding core 4. Slit film is wound round the winding core 4 driven by turning of the DC motor 18 via a pulley 20, a timing belt 21, a pulley 17, a sleeve 13, a key 12, a shaft 2, and a cone 3, while each of the DC motors 18 is then independently controlled via a control device based on an previously set operation formula according to various winding conditions. Further, when it is desired to change the slit width, it is performed while allowing the winding arm to move along a guide rail via a pulse motor.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a film slitter, and particularly to a slitter winding drive device.

Generally, a wide film is cut into multiple narrow films (
Hereinafter, in this specification, the slit may also be referred to as the slit. ) In a film slitter that winds the cut film, the film slit width 1, that is, the width of the film to be wound frequently changes (1). In order to achieve this, it is necessary to control the winding drive according to each winding width.In addition, in the winding drive control, in order to further improve the winding appearance of the film roll, it is necessary to control the winding drive according to each winding width.
The ability to control the winding tension in response to changes in the thickness of the film to be processed, the speed J'3 of the film to be processed, and the increase in the winding diameter of the film is also required.

However, none of the conventional film slitter winding drive systems completely satisfies the above-mentioned functions.

In other words, conventional slitter winding drive systems include a system in which a hydraulic motor is used to drive each winding core individually; The rotating shaft (
This line shaft 71 is rotated by driving the line shaft 71.
A system in which each winding core is individually driven via a powder clutch, a friction plate clutch, etc. is known from . However, in the case of using a hydraulic motor in the former case, although the hydraulic motor itself has the advantage of being small and high-output and is advantageous in terms of space, there is a large variation in output performance between hydraulic motors, and high-precision winding part saw control is required. The problem is that it is not possible to carry out l+, and the problem that controlling the winding drive for each winding core requires a large amount of hydraulic control equipment.
When the hydraulic pressure is controlled all at once to simultaneously wind cut films of various widths, there is a problem in that the capacity of the hydraulic motor must be changed depending on the winding width. In addition, in the latter method of driving the winding from Line Shirt 1 through a clutch, a highly accurate winding tension system 911 and a winding tension system 911 and winding There was a problem in that it was difficult to maintain tension control accuracy.

On the other hand, a film slitter is required to have good workability when changing the width of the slitter. That is,
In response to the urgent change in the width of the slit film, it is necessary to move the position of the winding arm that winds the slit film in the film width direction, but this work is usually done manually, and the winding arm ■Since this is a common problem, a lot of work time is required, and during this sludge production, the slitter is only operated at 1"
Since the slitter was stopped, the operating rate of the slitter was significantly reduced due to this work. Therefore, in recent years, in order to improve work efficiency and shorten work time, we have applied devices that have become commonplace, such as automatically moving the processing head between machining operations, to automatically position the winding arm. However, in the slitter of the type in which the line shirts 1 through 1 are passed through the winding section, it is difficult to incorporate an automatic positioning device for the winding arm due to space constraints, and the design is difficult. The problem was that the lessons were difficult.

In order to overcome the above-mentioned problems, the present invention aims to perform an optimal winding tension control υ11 depending on the slit fill 1\. A further object of the present invention is to incorporate an automatic positioning device for the winding arm into the slitter, if necessary.

In order to achieve this object, in the slitter d5 of the present invention, a DC motor is individually installed on the winding arm that rotatably supports the winding core, and this DC motor winds up the slit film. The drive control of the winding core is performed for each winding core. As a result, it is possible to perform highly accurate and optimal winding section horn control individually depending on the type of film in Surin 1, and in addition, a drive motor is attached to the winding arm. Since there is no need to cross the shirt 1-, an automatic positioning device for the winding arm can be easily incorporated into the slitter.

Preferred embodiments of the slitter of the present invention will be described below with reference to the drawings.

1 and 2 show an arm portion of a film slitter according to an embodiment of the present invention. In the figure, 1 is a winding arm body, and a shaft 2 is rotatably supported at the top of the winding arm 1 and slidable in the film width direction. Cone 3 is attached. 2 points 114HI in the evening 1st lap of cone 3
As shown in , the winding core 4 can be attached with its inner periphery in close contact with each other. 5 is a film cut to an appropriate width and wound around a winding core, and 6 is a roll that is applied to the winding film roll 5 by an appropriate means. An air cylinder 7 with a relatively small stroke is attached to the upper end of the winding arm 1.
The combined sliter 8 is slidable in the width direction of the film.
It is connected to a bracket 1-9 attached to one end of the U. Then, the slider 8 has a hair ring 10.11.
The movement of the shaft 2 in the tank movement direction is integrated through the shaft 2.

Key 1 is located near the opposite end of shaft 2 to cone 3.
2 is embedded with a part of it protruding from the surface of the shaft 2, and this key 12 is mounted on the inner surface of a cylindrical sleeve 13 that is slidably mounted on the shaft 2 in the film width direction. The key engraved in the direction i? It is freely engaged with +11/I. The sleeve 13 is rotatably provided via a bearing 15 and a member 16 fixed to the winding arm. A timing pulley 17 is attached to the end of the sleeve 13 opposite to the key +14.

Inside the center of the take-up arm 1 is a space I14, in which a small, high-output DC motor 18 has its mounting portion fixed to the inner surface of the take-up arm and its output shaft 19. The direction is the film width direction. A timing pulley 20 is attached to the protruding horn 19 of the DC motor 18, and a timing bell 1-21 is stretched between the timing pulley 20 and the timing pulley 17. In addition, 22 is bell 1 ~ horn
Drop at the bar.

Below the winding arm 1, a base 23 having a box-shaped cross section extends across the entire width of the slitter winding section in the film width direction, and the winding arm 1 is placed on the base 23.

The winding arm 1 has a movable structure such as a commercially available guide rail 24 of the type in which a large number of circular spheres extending in two strips in the longitudinal direction of the base 23 are arranged on the top surface of the base 23, or a mechanism at the bottom of the winding arm 1. '1t11 engages with the guide rail 24 that has been pierced by 1
It consists of 25 parts. Base 23 at the top of base 23
Rails 26 and 27 extend over the entire width in the longitudinal direction of the base 23 on the circular outer side surface of the box-shaped cross section. Members 29 attached to the lower side of the winding arm 1 and capable of opening and closing are engaged with the rails 27, respectively.

At the bottom of the base 23, a total of 30 and 31 are formed which extend in the longitudinal direction of the base 23 and are each independently partitioned. At a position corresponding to the side wall of the base 23 of this chamber 30.31, a large number of hose attachment ports 32 communicating with the chamber 30131 are arranged in the longitudinal direction of the base 23. A DC motor 2Ht tJ+ is attached to the hose attachment port 32 facing outward from the DC motor 18 (J).
The hose ends fA35 of the wind hoses 33 and 34 can be easily fll 't4.

Two electromagnetic clamps 36 are attached to the lower part of the winding arm 1, and the electromagnetic clamps 36 are fixed on a member 37 attached to the upper surface of the base 23 and extend in the longitudinal direction of the base 23. sandwiching the upper and lower surfaces of the plate-like member 38,
placed in a releasable position.

A square screw 39 is provided above the chambers 30, 310 in the box-shaped cross section of the base 23 over the entire width of the base 23 in the hand direction. The square screw 39 has a threaded portion on its inner peripheral surface that engages with the square screw 39, and its outer peripheral surface is formed into a gear.
- Mvoile 40 is engaged. A-mu foil 40
is rotatably supported by conical roller bearings 41.42 on both side protrusions, and the bearings 41.42 are connected to the box-shaped member 4.
3, its outer ring is supported. A worm 44 is engaged with a gear portion on the outer periphery of the worm wheel 40, and both end shaft portions of the worm 44 are rotatably supported by a bearing 45 whose outer ring is supported by a box-shaped member 43. One shaft end of the worm 44 is connected to the output shaft of a pulse motor 46 attached to the outer surface of the box-shaped member 43.

An engaging member 47 is melted upward on the upper surface of the box-shaped member 43, and the engaging member 471 is attached to the lower surface of the member 48 attached to the lower side of the winding arm in the longitudinal direction of the base 23. A member 50 is attached to the lower part of the box-shaped member 43, and the bottom surface of the base 23, which has a box-shaped cross section, is attached to the lower surface of the member 50. An iM 52 is formed which extends upwardly from the base 23 and engages a guide 51 extending in the longitudinal direction of the base 23.

The outer surface of the rail 26 has rJ along its entire length.
A scale 53 is attached to the scale 53, a detection head 55 is attached to the tips of brackets 1 to 54 provided downward from the lower part of the winding arm 1, and They are facing each other with a possible distance lll11 apart.

The input voltage and input current of the DC motor 18 are controlled by a control device @
It can be controlled by the signal from 56, and the control υI
Ii! ! The device 56 includes the aforementioned DC motor 180 system 91.
1 function, a function to calculate the winding diameter of the take-up film roll 5 from the film running speed and the rotation speed of the motor 18 transmitted from an appropriate detector (not shown), and an arbitrary curve according to this winding diameter. An input current command function for the DC motor 1B that can be set to The function is to determine the width of the film to be taken up from the signal from the detection head 55. The motor 18 is provided with a function of directing the current to an oil cylinder, and a function of commanding the current of the motor 18, which can be set to an arbitrary curve according to the running speed of the film.

In the apparatus having the above configuration, the slit film 1 is rotated by the rotational driving force of the DC motor 18 to the pulley 20, timing bell l-21, pulley 17,
It is wound onto a winding core 4 via a sleeve 13, a key 12, a shaft 2, and a cone 3.

The winding tension of the fill lx wound around this winding core 4 is:
There is a one-to-one correspondence with outputs 1-7 of the DC motor 18. Therefore, by controlling the current of the DC motor 18, the winding 1 reversal force of the file λlem is reduced to II, 11 and 1.
1 will be given.

To control the current of this DC motor 918, the DC motor 18 is individually installed in each winding arm 1.1.
(Il! 1'A1jl Koi 1 Lily 118 Place 561 Koyori Maki Prefecture 61 Go) Ilsa 1.

Fill I by control device 56 (take-up tension) gill
The roll film 1] - 5 has a good winding appearance and a good roll film 11 - J with no quality defects. ! Did you see it? ! However, these III and 11 (!1) actual winding tests are required.
Color stripe ('1) + (3J is added.) In other words, the winding test (from this, the winding tension is correct for changing the width of the winding film)
) to control the air chewing rate of the rolled film Lonyl for the increase in the winding diameter. The rate of decrease in Jtl of the winding tension, the rate of increase/decrease in the winding tension with respect to the film thickness, etc. l/li are determined, and the control conditions determined by these tests are predefined as a numbing formula91
1 device 56 (By setting this, in the case of production winding, the optimal winding tension line t!Llfi determined from the milk cost 1 is reproduced with high precision.Furthermore, as described above, Since the DC motor 18 is individually installed on the winding arm and controlled individually, when cutting a wide film into various films at the same time, each film of various widths can be cut optimally. Winding tension strip 1'1t Trowel winding 1
You'll end up swearing.

On the other hand, when changing the slit width, the winding arm 1 is moved to fLH (fLH) corresponding to the width of each slit. The hail 40 is rotated, thereby moving the box-shaped member 43 along the square bevel 39, and the box-shaped part 1A43-this engagement 6 is engaged and included via the member 47 and the member 48 (X The take-up arm 1 is moved along the guide rail 24.Then, the control Il is used to confirm that the take-up arm 1 has reached the target position.
The device 56 is checked by the signal from the detection head 55 of the air scale 53, and this confirmation causes the pulse mode 5+ to be activated.
46 is stopped, and the clamp of member 38 of electric 11 clamp 36 is actuated, and the winding arm 1 is precisely fixed in a predetermined position.

Among these devices for automatically positioning the winding arm 1, (
The mechanical device is a drive shaft 1-. of a slitter of the type in which a line shirt]-- was passed to the conventional winding section. B and its transmission device are installed in the I part, and the IH space is large enough to install these devices H.
ill +! i: It is easily incorporated into the winding part without accompanying.

Jy, since the above is true, when using the slitter in this defense, the drive control of the winding core is individually performed for each winding core 11 (by means of a melted DC motor, so it is different from the conventional method). Compared to winding drive using a hydraulic motor or clutch, control can be performed with much higher precision and better reproducibility.
Optimal and highly accurate winding tension control can be performed for each f61.

Furthermore, if the output control device of the DC motor for driving the winding core is equipped with a function that allows the user to freely set arithmetic expressions based on the knowledge of the winding conditions obtained through various winding tests, it is possible to Optimum winding tension control is always ensured even if the conditions change.

Furthermore, since a DC motor is individually installed on the winding arm,
Automatic positioning for moving the take-up arm in the film width direction 9
You can easily take up space to incorporate B liv, and this I! By incorporating iUl, the workability of changing the slit width can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of the take-up arm of the slitter of the present invention, and FIG. 2 is a cross-sectional view of the device shown in FIG. 1 taken along the line ■-■. '1...... Winding arm 2... Shaft 4... Winding core 5... Winding Film roll 7...
...Air cylinder cylinder 2...Key 13...Sleeve 17.20...Timing pulley 18.
......DC motor 21...Rming belt 23...
...Base 24...Guide rail 33.34...Cooling air hose 3G...
・・・Electric clamp 39 ・・・Square screw 40 ・・・A-m foil 44 ・・・
...Tem 46...Pulse motor 47...Engagement member 51...Guide 53... ...Scale 55...Detection head 56...Control 11 device Patent applicant Toshi Co., Ltd. Fig. 1□" Fig. 2

Claims (6)

[Claims] (1) The winding arm base is equipped with a winding arm that can be adjusted in width in the film width direction, and the film that has been cut into narrow widths is placed on the winding core that is rotatably supported by the winding arm. A slitter for winding, characterized in that the winding core is individually driven by a DC motor installed on each winding arm. (2) The slitter according to claim 1, wherein the DC motor is configured to control its output according to a fixed output curve depending on the winding diameter of the film wound around the winding core. (3) The slitter according to claim 1, wherein the output of the DC motor is controlled according to a constant output curve depending on the thickness of the film wound around the winding core. (4) The slitter according to claim 1, wherein the output of the DC motor is controlled according to a fixed output curve corresponding to the width of the film wound around the winding core. (5) The slitter according to claim 1, wherein the output of the DC motor is controlled according to a constant output curve depending on the traveling speed of the film wound around the winding core. (6) The winding core is located at a position corresponding to the cutting width of the film together with a DC motor provided on the winding arm,
The slitter according to claim 1, wherein the slitter is positioned by a winding arm moving device provided in the film width direction in the slitter winding section.