JPS6156139B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winder for winding paper, plastic film, etc. onto a core tube, and in particular to an automatic paper edge fixing device that automatically attaches and fixes the beginning end of a web to a core tube. This invention relates to an improvement of a core tube setting device.

As shown in FIG. 1, a commonly known ordinary winder includes a winder frame 1, a cross beam 2 that moves up and down within this frame 1, and a rider roll 3 attached to this cross beam 2.
It consists of a front drum 5, a rear drum 4, a slitter 8 for regulating the product width, an unloading table 9, an ejector 16, a core tube setting device 17a, and a web support device 18. The core tube A held in the gap between the drums 4 and 5 is rotated by the contact pressure of the rider roll 3 to wind up the paper that is unwound from the parent roll 6 via the slitter 8. Further, after the paper strip C is cut, the paper end D is supported by a web support device 18 so that it does not fall down from between the drums 4 and 5.

In such a conventional winder, when the take-up roll 7 and the paper strip C are separated, after the take-up roll 7 is kicked out by the ejector 16, the core set in advance on the underside of the unloading table 9 is removed. The tube A is inserted between the drums 4 and 5 by the core tube setting device 17a, and the paper strip C is cut in a direction perpendicular to the winding direction using the paper cutting cutter attached to the core tube setting device 17a. After the setting device 17a returned to its original position, the paper end D was fixed to the core tube A with adhesive tape or green pasting, but this was done manually and was extremely inefficient. And it was dangerous.

In order to avoid such problems, a paper edge fixing device as shown in FIG. 2 has been developed. As is well known, this device uses a single-sided adhesive tape B, and a tape repeating mechanism 10 on the front surface of the cross beam 2.
After the tape B is run on the beam 11 and spread on the suction tube 13 on the tape holding mechanism 12,
The suction tube 13 is turned 90 degrees, the cross beam 2 is lowered, and the core tube A and the paper edge D on the drums 4 and 5 are pasted together with tape. In addition, 14 is a core tube setting device, and 15 is a core tube A by air blowing the edge of the paper.
This is a paper holding device that allows you to press the paper along the top.

In such a device, there is no problem if the outer diameter of the core tube A is a preset size, but the outer diameter size of the core tube used in the winder is not always constant and usually ranges from 100 to 200 mm. There are various types of winders, and these are often used randomly in one winder. In such cases, a paper cutting device attached to a well-known core tube setting device 17a as shown in FIG. When paper is cut, the cut paper edge D
However, due to the size of the core tube, it may not be possible to position it directly above the core tube, and it may end up on the slope of the core tube.
That is, the part cut at position a in the figure is located on the inclined surface of the core tube at a'. For this reason, with automatic paper edge fixing equipment that utilizes the vertical descent of rider rolls, when applying tape by pressing the tape on the suction tube onto the core tube,
This type of tape application, in which the tape is pasted across both the paper edge and the core tube, has the disadvantage that it cannot be done properly due to the position, and the suction tube slips on the core tube, causing the tape to shift and prevent successful attachment. Ta.

This invention was made with the aim of eliminating these conventional problems, and by improving the core tube setting device, the position of the core tube receiver can be automatically changed with one touch, and the cut paper edge can be Even in the case of a core tube diameter of do.

In FIGS. 4 and 5, 17b is a core tube setting device, the core tube holder 19 of which is arranged to support one end of the core tube A, and the rodless cylinder 20 on the back side.
and a paper cutter device 22 on the running section 21.
has. The paper cutter device 22 consists of a conical lower blade cutter 23 and an upper blade cutter 24 that rotate in contact with each other, and a rope pulley portion 25 is formed on the back surface of the lower blade cutter 23 and is integrally structured with the cutter. There is. Further, a rotatable pulley 26 is provided adjacent to the lower cutter 23. A rope 27 stretched on the back side of the core tube holder 19 is attached to both pulleys 2.
5 and 26 in a figure 8 shape, and is attached to both ends of the rear core tube support 19 via rope attachment fittings 28 and 28'.

By supplying air to one of the piping 29, 29' of the cylinder 20 and moving the traveling part 21,
The cutter device 22 traverses the entire width of the web while rotating, and cuts the web C developed between the unloading table 9 and the front drum 5.

The core tube support beam 30 supports the other end of the core tube A at its upper part, and has a slide surface 31 for the core tube support 19 that moves back and forth in the center thereof, and slide guides 32, 3 at both ends thereof.
2'. Further, holes 31a are formed in the slide surface 31 at equal intervals in the width direction, and the movable female screw 3 is passed through the holes 31a and bolted to the bottom of the core tube holder.
3 is provided. At the bottom of the core tube support beam 30,
At one end, there is a connecting shaft 36 that connects the motor 34, a worm reducer 35 disposed inside, and its input shaft, and rotates the motor 34 to simultaneously move a plurality of movable male screws 37 attached to the output end of the reducer. Turn it. As a result, the core tube holder 19 slides back and forth in parallel, and the interval between the core tube holders increases or decreases depending on the various core tube sizes. to set the position.

A guide plate 39 is attached to the core tube support beam 30 and serves as a web development guide. At both ends of the core tube support beam 30, there are guide grooves 4 of the inner extensions of the bearing housings 40, 40' of the front drum 5.
There are beam support brackets 42, 42' guided by 1 and swinging with a slight eccentricity e.
The beam is tilted over the outer periphery of the front drum 5 by a trunnion type cylinder 43 attached to the floor pit, and serves to carry the core tube A, which has been inserted and set in advance, between the drums 4 and 5.

This core tube holder back and forth sliding machine is not installed in the core tube holder of the conventional type core tube setting device 17a shown in FIG. The beam tilting mechanism is the same as the conventional one.

The core tube setting device configured as described above can be used in combination with a known paper edge automatic fixing device to easily fix the subsequent paper edge.The operation thereof is illustrated in FIG. The following is an explanation of the case where the present invention is applied to the conceptual diagram of FIG.

When the winding of the winding roll is completed, the drums 4 and 5 are stopped, and then the first stopper 4 of the unloading table 9 is moved.
5 to the take-up roll support position, the take-up roll 7 is kicked out by an ejector 16.

Next, the swing arm 44 of the unloading stand 9 is lifted, the core tube setting device 17b of the present invention is tilted, and the core tube A is loaded between the drums 4 and 5, and then the paper presser is set using the rear drum bearing as a fulcrum. 15 to bring the air nozzle closer to the web cutting position, and at the same time, the web support device 18 is raised to press the web against the rear drum 4. Next, while injecting air from the air nozzle of the paper pressing device 15, the core tube setting device 17
The paper cutting cutter 22 in b is run to cut the web at right angles to the winding direction, and the second stopper 46 of the unloading stand 9 is raised, and the first stopper 45 is lowered to unload the winding roll 7. The core tube setting device 17b and the swing arm 44 are returned to their original positions at the same time as the tube is transferred along the inclined surface of the table 9 and reaches the position of the second stopper 46.

After that, the suction tube 13 with the pre-rolled single-sided adhesive tape of the paper edge automatic fixing device is moved from a horizontal position.
It is rotated 90 degrees and placed directly above the core tube so that the tape is applied across the core tube and the web end D overlying the core tube. In this state, as shown in FIG. 4, the end of the web cut at position a can be positioned directly above the core tube at point a' no matter what size the core tube is. Next, the cross beam 2 is lowered along its vertical sliding surface 47 to complete the tape application.

Since this invention has the structure and operation described in detail above, when changing the outer diameter size of the core tube, it is no longer necessary to manually perform complicated operations such as inserting a spacer into the core tube receiving part. without needing to
Not only can the position of the core tube receiver be quickly changed automatically, but also the cut web end can be positioned directly above the core tube, no matter what size the core tube is. This makes subsequent paper edge fixing easier, and is extremely effective in saving labor and improving productivity.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing a general example of a winder device, FIG. 2 is a schematic side view of an improved known main part,
FIG. 3 is an explanatory diagram of the operation of a conventional core tube setting device, FIG. 4 is an explanatory diagram of the structure and operation of a core tube setting device according to the present invention, and FIG. 5 is a perspective view of the core tube setting device of the present invention. 2...Cross beam, 5...Front drum,
4... Rear drum, 17a, 17b... Core tube setting device, 18... Web support device, 19... Core tube holder, 22... Cutter device, 30... Core tube holder beam, 31... Slide surface, 32 , 32'...Slide guide, 35...Reducer, A...Core tube, B...
...Single-sided adhesive tape, C...Web, D...Paper edge.

Claims (1)

[Claims] 1. While inserting and holding the core tube between the front drum and the rear drum using the core tube holder, move the cutter device provided on the core tube holder in the paper width direction to cut the web at right angles, and then move the core tube holder back. Use the paper holding device to align the end of the web along the core tube, use the paper edge fixing device to place a single-sided adhesive tape across the web and the core tube, and use this tape to attach and secure the web end to the core tube. In the paper edge automatic fixing device, a core tube support beam is provided with both ends supported by the bearing housing of the front drum and rotates around the front drum, and the core tube support and the cutting device are attached to the front drum. The cutting position of the web can be adjusted so that the web end is almost directly above the core pipe when the web end is placed along the core pipe. A core tube setting device for a winder, characterized in that it is configured as follows.