JPH0563371B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device that simultaneously attaches paper to the outer periphery of the coil and folds the paper at the end of the paper packaging for a coiled product. .

[Prior art] Conventionally, the method disclosed in Japanese Patent Application Laid-open No. 134825/1983 is known as an edge folding method, but in actual edge folding of the end face of a coil, paper wrinkles occur if only the paper feed roll is used. However, it is impossible to fold the paper beautifully, and because the leading edge of the paper is not held (fixed), the paper loosens during the process and the paper separates from the coil, which is a problem.

Also, considering the actual machine, there was a problem with the method of folding the paper into the inner circumference after folding, which is essential for coil packaging. The same applies to the method of fixing the paper after it has been attached.

[Problems to be Solved by the Invention] An object of the present invention is to solve the above-mentioned problems and provide a simple and inexpensive outer paper-attached paper folding device.

[Means for Solving the Problems] A paper folding device with peripheral paper attached according to the present invention includes a paper feeding device 1 shown in FIG. a drive motor 4 that causes reciprocating motion;
A shaft 5 that connects the shuttle bar 3 and the drive motor 4, and a slide device 6 that determines the direction of reciprocating motion.
A brush-like roller 7 is divided into several parts so as to correspond to the speed difference between the inner and outer peripheries, each of which can rotate according to its circumferential speed, a rubber roller 8 having the same structure, and a motor that moves the entire device parallel to the coil. Car attached 1
2. Cradle roll 11 that rotates the coil
2, a paper inner circumferential folding device 9, and a device 10 for performing paper leading edge taping and paper trailing edge taping.

In the present invention, the paper 13 formed into a U-shape is fed to the coil 14 at a constant speed using a belt while the paper 13 is sucked by the paper feeding device 1. The paper feeding device 1 is
As shown in the figure, for example, belts 16-1 to 16-
n (6 stages shown in the figure) are provided in multiple stages to create negative pressure,
The paper is fed while suctioning the paper through the suction hole 17. The tip of the paper 13 that has come onto the coil 14 is bonded to the coil using a taping device 10. Therefore, the coil 14 is rotated by the cradle roll 11.

When the coil 14 rotates, paper folds 15 are generated in the U-shaped paper 13 toward the inner circumferential side of the coil 14 due to the difference between the inner circumferential speed and the outer circumferential speed of the coil 14.

If the paper folds 15 are fed directly to the brush-like roller, many paper wrinkles will occur, so the shuttle bar 3
is driven by a drive motor 4 to continuously form paper pleats 15 and sequentially pass the paper pleats 15 to a brush-like roller 7 (divided to correspond to the circumferential speed, each of which can rotate freely). I'll send it in.
Note that the operation of the shuttle bar is determined by the slide device. Examples are shown in FIGS. 5, 6, and 7.

Paper folds 15 fed to brush roller 7
is pre-folded by the same roller, and then pressed by a rubber roller 8 having the same structure as the brush roller to form a sure crease.

Thereafter, the paper 13 is sent to the inner circumferential folding device 9 by the rotation of the coil. In the inner periphery folding device 9, the coil is gradually folded into the inner periphery using rotating rollers (or baffle plates + rollers) arranged in a spiral manner, and finally completely folded into the inner periphery of the coil. Thereafter, when the rear end of the paper 13 is sent onto the coil, the taping device 10 tapes the rear end.

With the above steps, paper loading, paper folding, and inner circumference folding are performed simultaneously and completed.

[Effects of the Invention] As explained above, the device of the present invention includes a paper feeding device, a shuttle bar, a brush roller, a press roller, an inner circumferential folding taping device, and a cradle roll for rotating the coil.
(1) Paper loading and paper folding are performed at the same time, so the work process can be omitted. (2) Paper folding uses the paper folds generated due to the speed difference between the outer and inner circumferences of the coil, so the mechanism and control are simple and inexpensive. It has the effect of becoming a device.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the entire apparatus of the present invention, Fig. 2 is a front view of the paper folding mechanism, Fig. 3 is a front view of the finished shape of the product, Fig. 4 is a perspective view of the paper folding, and Figs. 5 to 7 are bookmarks. FIG. 3 is an explanatory diagram of the operation of the invention. 1... Paper feeding device, 2... Drive motor, 3...
Shuttle bar, 4... Drive motor, 5... Shaft, 6... Slide device, 7... Brush roller, 8... Rubber roller, 9... Inner paper folding taping device, 10... Taping device, 11...
...Cradle roll, 12...Motorized vehicle, 13
...Paper, 14...Coil, 15...Paper folds.

Claims (1)

[Claims] 1 A paper folding device that generates paper folds by utilizing the speed difference between the inner and outer circumferences generated by rotating the coil, and continuously attaches paper to the outer circumference of the coil and folds the paper at the ends of the coil. , a paper feeding device that sucks paper formed into a U-shape in a direction away from the end face of the coil and sends the paper toward the center of the coil using a belt, and a paper feeding device that urges the generation of paper pleats, performs pre-folding, and rotates the paper individually. a brush roller that folds the paper and rotates individually, an inner folding device that folds the paper into the inner circumference, a taping device that tapes the leading edge of the paper and the paper wrap, a paper feeding device, and the brush rollers. and a shuttle bar that is installed upright on a slide device that engages with the drive system and moves back and forth between the paper feed device and the brush-like roller to form paper pleats. A paper folding device that attaches paper to the outer periphery and simultaneously and continuously performs the following operations.