JP2686715B2 - Ear waste winding device in slitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for selvage produced by cutting off both edges of a wide web in a slitter.

[0002]

2. Description of the Related Art In a slitter, when a wide web fed from the outside of the apparatus is divided and cut into a plurality of narrow webs by a slitter blade, narrow selvedges are produced on both edges of the wide web. This selvage is usually wound separately from the narrow product web in the middle part, but the conventional selvedge winding device has a simple mechanism and is relatively rough in terms of winding tension control. . When disposing such an ear debris take-up device in a slitter, it was necessary to avoid interference with each device of the main body slitter and guide an ear debris thinner than a position remote from the edge cutting device through a complicated path. . As a result, the ear dust is cut off in the middle, or the fluctuation of the ear dust tension affects the ear dust excision, resulting in unevenness on the edge of the product web. It was blocking.

Therefore, the applicant of the present invention has attempted to improve such a situation, and previously holds a core holding frame for holding a core around which the cut-out ear scraps of the web edge are wound from above and holds it in a space below. Proposal of a slip provided with a selvedge winding device in the space (Japanese Patent Application No. 4-75865, Japanese Patent Application No. 5-42).
No. 082), the ear dust was guided to the ear dust winding device through the shortest path from the ear dust excision position, and stable ear dust winding was made possible.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation and is intended to improve the ear dust take-up device in the slitter. In particular, the ear dust is guided downward from the ear dust excision position by a dancer. By swinging to the left and right under a constant tension to wind up and wind up, and by installing a winding core supply device that winds up ear dust, the time required to replace the full roll can be shortened, and the operating efficiency of the slitter can be improved. The object of the present invention is to increase the amount of winding on the core, reduce the frequency of replacement of the full roll of ear dust, and perform stable winding.

[0005]

SUMMARY OF THE INVENTION According to the present invention, which is adapted to the above object, the wide web described above is divided and cut into a plurality of narrow webs and wound up, and both side edges of the wide web are cut with ear debris. In a slitter which is cut by a device and wound by an ear dust winding device, the ear dust winding device is arranged below an ear cutting position of the slitter to guide the ear dust vertically below the cutting position, and a dancer through the device allowed to reach take-winding device, as well as a swing winding can up to the right and left around the ear scrap guide line, depending ear debris ablation device to the web changes
Tighten if repositionable Te, and the Mimikuzu winding device and said configuration in which occupies possibly displace the swing center in response to changes in the ear debris ablation position.

According to the present invention, the selvage winding device is also provided with a core feeding device including a rotatable arm for taking out a fully wound selvage roll from the device and for supplying a new winding core. What I did is another feature.

[0007]

According to the above-mentioned device of the present invention, the selvage at both end edges of the wide web, which is cut off when the wide web is divided and cut into a plurality of narrow webs by the slitter, is guided vertically downward from the cutting position to the lower part. Winding the arranged ear dust winding device while swinging it laterally (traverse) around the ear dust guide line, and when it reaches full winding, the winding is stopped and taken out, and a new core is supplied. Then, winding is started again.

If there is a change in the width of the web, etc., the ear debris excision position changes with this change. Therefore, the traverse center of the ear debris winding device is moved in accordance with this change so as to adjust to the proper position. The same winding as above is performed.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows the arrangement position of the device of the present invention in a slitter. In the drawing, a wide web 1 is divided into a plurality of narrow webs by a slit device 2, and the webs are alternately separated into front and rear parts. The webs are wound up on rolls 3 and 3 ', respectively, but at this time, both edges of the web are cut off to form a single piece of left and right selvages 4 via the dancer device 5 and the selvage take-up device. Rolled up on roll 6. In the figure, F is a machine frame, 7 is a magazine rail of a core 8, and 9 is a core supply and full-ear roll of take-out roll of a core feed device. When the ear rolls 3 and 3'are fully wound. It is automatically discharged to the front, and a new winding core is supplied by the rotation of the arm 9 instead.

2 and 3 show the details of the selvedge winding device in the above-mentioned device, in which C-C is the center line of the slitter, which coincides with the center line of the wide web 1 running on the slitter. To do. Then, there are both end edges where the web is cut off at the symmetrical positions of the center line C-C, and each end edge portion has a narrow width w.
And the ear waste 4 is generated.

Further, aa in the figure is the center line of the selvage 4 at the right end edge in the figure, and usually coincides with the center of the traverse width in the winding core 30 for winding the selvage. In addition, 10 is a rocking device for rocking left and right around the center line C-C, 11
Is a take-up device for the right ear scrap 4, which is a rocking device 10 as will be described later.
Then, the ear scraps 4 are wound while swinging to the left and right around the line aa and traversing.

By the way, the above-mentioned device shown in FIGS. 2 and 3 is the right ear dust winding device 11, but in an actual device, the left ear dust winding device is symmetrical with respect to the device 11 and the center line CC. A picking device is provided. However, since the left ear debris winding device has the same structure as the right ear debris winding device, illustration thereof is omitted here, and the right ear debris winding device shown in FIGS. 2 and 3 is represented. This will be described below.

2 and 3, the stay 1 under the machine frame
Two rails 13 and 14 are fixedly installed parallel to each other on the side surfaces of the two rocking plates 17 having slide bearings 15 and 16 engaged with the rails 13 and 14, respectively.
Is provided so as to be slidable by engaging the slide bearings 15 and 16, a bracket 18 is projected from the swing plate 17, and a nut 19 is fixed to the bracket 18, and the motor 19 is attached to the nut 19. The screw rod 21 that is rotated by is engaged, and the swing plate 17 can swing right and left around the center line C-C by the forward and reverse rotation of the electric motor 20.

The rocker plate 17 also has an electric motor 22,
22 'is fixedly provided. One end of each of the electric motors 22 and 22' is rotatably supported by the rocking plate 17 via transmission mechanisms 23 and 23 ', and the other end thereof is wound with ear dust, which will be described later. Another threaded rod 25 engaged with a nut 24 secured to the device 11,
It is designed to drive 25 '.

Reference numeral 26 is a base plate of the selvage winding device 11, on the back side of which slide bearings 27, 27 ', 28 and 28' which engage with the rails 13 and 14 are mounted.
Further, winding core chucks 29, 29 'with flanges are rotatably mounted on the winding frames 30a, 30b fixed to the base plate 26, and one winding core chuck 29' is operated by an air cylinder. Is moved toward and away from the core chuck 29 on the opposite side, and at the time of approaching, the core 30 is chucked in cooperation with the core chuck 29, and the core chuck 29 is driven by the winding motor 31. It is designed to be wound up.

The nut 24 that engages with the above-mentioned screw rod 25 is fixed to the back side of the base plate 17 of the ear dust winding device 11 so that the swinging motion of the swinging device 10 can be performed via the screw rod 25. By transmitting to the base plate 17, the rocking device 10, the ear dust winding device 11, and the left ear dust winding device (not shown) integrally swing on the rails 13 and 14 to the left and right, and the winding core 31 by the winding motor 31. The left and right ear debris are each swung (traverse) by the rewinding drive of.

When the width W of the web 1 changes, the position of the ear debris naturally changes, and the center of the ear debris winding device 11 and the dancer device 5 must be aligned with the changed ear debris center line aa. I have to. The dancer device 5 is manually moved along a rail 33, which will be described later, to set the position, and the ear dust winding device 11 is a motor 22 fixed to the rocking plate 17 of the rocking device 10 and a screw rod 25. Is reversed in the normal direction to change and set the swing center of the winding device 11.

The structure of the core portion is described in detail in Japanese Patent Application Laid-Open No. 6-16340 filed by the applicant of the present invention. As shown in FIG. It is formed by a plurality of segments 54, 54 'that are divided along the central axis 51 that is provided therebetween, and the distance between them is expandable and contractable in the circumferential direction.
The cylinder is urged outward by a compression spring 53 locked to the central shaft 51, and a handle for tightening the spring 53 is provided in the end opening of the cylinder and when the spring 53 is tightened, the cylinder is moved to the movable side. The distance L between the fixed side grips is reduced, and at the same time, the inclination angle of the leaf springs 55, 55 'interposed between the inside of each segment 54, 54' and the flanged sleeve near the end of the center axis with respect to the center axis is small. It is composed.

Then, by closing the chucks 57 and 58 by a chuck opening / closing device with respect to the core in the expanded state, that is, by moving the chucks 57 and 58 in a direction in which the distance between the chucks 57 and 58 is narrowed, the chucks 57 and 58 are removed. The truncated conical chamfered portion of the end face serves as a guide to enter the winding core and clamp the winding core.

At this point, each segment 54,
54 '... is a cylindrical portion 59 of the chucks 57, 58,
It is supported by 60, and the diameter reduction due to the winding tightening force generated as the winding progresses is prevented.

A key 56 is fixed to at least one side of the chucks 57 and 58 and engages with a notch provided in the segment 54, and the winding torque introduced to one end of the chuck 54 is transmitted. It is like this.

Next, the winding electric motor 31 in the selvage winding device can be controlled in rotation, and the operating speed of the slitter and the core rotation speed of the selvage winding device are used as input signals for the winding operation. The diameter ratio of the roll is calculated, the value is multiplied by the winding core rotation speed to calculate the appropriate winding speed, and a known winding speed control method by feedback correction of the dancer device 5 at the entrance of the winding device is applied. Has been done. Therefore, the dancer device 5 is disposed above the main body of the ear dust winding device 11.

The dancer device 5 is a member 3 provided horizontally on the machine frame F.
The dancer frame 34 slidably mounted along the rail 33 on the upper side of the upper part 2 is attached with the rotating arm 35, and the dancer roller 36 is attached to the tip of the rotating arm 35. As shown in FIG. 2, the dancer roller 36 and the direction change guide roller 37 above the dancer roller 36 reach the winding portion, and the dancer load 38 controls the tension of the ear dust. Then, the deviation from the neutral position of the dancer roller 36 due to the change in the tension of the ear dust is fed back to the winding speed control circuit as a speed correction signal.

Thus, the selvage take-up device of the present invention having the above-mentioned structure carries out the take-up process of selvage in the slitter. The core supply / full roll take-out arm 9 shown in FIG. 2 takes out the ear dust full roll and supplies a new core.

This core supply / full roll take-out arm 9
Is rotated by an air cylinder (not shown), and is stopped at three positions of a core receiving position P ₁ , a full roll receiving position P ₂ and a full roll take-out position P ₃ .

That is, when full winding is completed, the winding device 11 is stopped from swinging at the swing center position, the arm 9 is rotated to the full roll receiving position P ₂ , the core chuck is opened, and the arm tip is opened. The full roll is transferred to the gutter type cradle, rotated to the take-out position P ₃ and the full roll is lowered onto the floor, and then the arm 9
To the core receiving position P ₁ in the opposite direction, and the _{first one} of the cores 8 placed on the core magazine rail 7 is provided with a known stopper releasing means to provide a tip gutter type cradle for the arm 9. Move to.

Then, the arm 9 is rotated again to be rotated up to the full roll receiving position P ₂ to close the core chuck and complete the supply of the new core.

For the fully wound roll that has been laid down on the floor, the core is removed and the core is placed on the core magazine rail 7.

Since the diameter of the segment forming the core cylinder can be reduced by grasping the handle of the core 8 as described above, the core can be easily removed from the full-wound selvage roll.

The series of winding core supply and full roll take-out operations as described above can be automatically achieved by applying a known sequence control technique.

Although the apparatus of the present invention has been described above, the details can of course be modified in design, and the present invention is included unless it deviates from the object of the present invention.

[0033]

As described above, according to the present invention, the ear dust is guided vertically downward from the ear dust excision position to reach the ear dust winding device through the dancer device, and the ear dust is guided around the ear dust guide line. Swing the take-up device to the left and right to take up
Der those to move the rocking center of the ear scrap winding apparatus in response to displacement of the ear debris ablation device with a change in the web width
Ri, or even from Ru der that allowed attaching a supply device of the winding core to wind the Mimikuzu, ear debris from always be changed web width Mimikuzu switching <br/> removal device through the shortest path And the stable winding operation, the winding amount of the selvage scraps is increased by the oscillating winding operation, the frequency of replacement of the selvage waste rolls is reduced, and the work efficiency is further improved. Has a remarkable effect of shortening the time required for replacing the full winding rolls, improving the operation efficiency as a slitter, and facilitating the work of taking out the full winding rolls and supplying the new winding core.

In particular, the device of the present invention responds to changes in web width.
Since the ear debris excision device can be moved and the ear debris take-up device can also move its swing center, it is possible to easily cope with a change in the width of the supplied web, which enables a wide range of uses. Improve the practical effect.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a position where a selvedge winding device of the present invention is arranged in a slitter.

FIG. 2 is a side view of the ear dust winding device that is a main part of the present invention.

FIG. 3 is a front view of the ear dust winding device.

FIG. 4 is an explanatory view showing a mode of core mounting according to the present invention.

[Explanation of symbols]

 1 Wide web 2 Slit device (slitter) 4 Ear scraps 5 Dancer device 6 Ear scrap rolls 7 Core magazine rails 8 Cores 9 Core supply / full roll waste roll take-out arm 10 Swinging device 11 Ear waste winders ( Right side) 12 Stays 13,14 Rails 15,16 Slide bearings 17 Sliding plates 18 Brackets 19 Nuts 20 Electric motors 21 Screw rods 22,22 'Electric motors 23 Transmission mechanism 24 Nuts 25 Screw rods 26 Base plates 27, 27 of the ear dust winding device ′ Slide bearing 28, 28 ′ Slide bearing 29, 29 ′ Core chuck 30 Core 30a, 30b Winding frame

Claims (2)

(57) [Claims] 1. A slitter in which a wide web is divided into a plurality of narrow webs and wound up, and both side edges of the wide web are cut off by an ear debris cutting device and wound up by an ear debris winding device. The ear dust winding device is arranged below the ear cutting position of the slitter to guide the ear dust vertically downward from the cutting position, and reaches the winding device via a dancer device ,
To a swing winding can up to the right and left around the ear scrap guide line
Position the ear debris remover as the web width changes.
Changes possibly tighten and Mimikuzu retractor ear scrap winding device in the slitter, characterized in that it occupies possibly displace the swing center so as to correspond to the change of the Mimikuzu removal position. 2. An ear debris winding device also has a core feeding device including a rotatable arm for taking out a fully wound debris roll from the device and feeding a new winding core. The ear dust winding device in the slitter according to claim 1.