JPH0541542B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a take-up web support mechanism in a SURF S winding type winder.

(Prior Art) The maximum winding diameter of the web winding core shaft in a surf ace type winder is limited by its rigidity. Therefore, when winding a wide web with a web winding core, winding it to a large diameter causes deflection of the core shaft, and therefore also deflection of the core, which causes wrinkles in the wound web. This could result in defective products or even breakage of the winding core shaft.

(Problems to be Solved by the Invention) Therefore, the conventional means adopted to prevent the occurrence of defective products and breakage of the web winding core shaft is to of,
This was a double drum winder system in which the winding web was supported by two receiving drums that were symmetrically arranged diagonally below the left and right sides of the winding web. However, in the above method, since the entire weight of the web wound around the core is received by the two receiving drums, the winding hardness is affected by that weight, and the adjustment range of the winding hardness is limited. There was a very narrow drawback.

The present invention has been made based on the above-mentioned circumstances, and eliminates the occurrence of web wrinkles and breakage of the take-up core due to increased weight of the take-up web on the take-up core, and moreover, eliminates the problem of the conventional double-drum winder method. To provide a take-up web support mechanism in a surf-s winding type winder that is free from problems such as an increase in the winding hardness of the take-up web and a narrowing of its adjustment range.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention includes a drum, which is brought into contact with the drum at the beginning of the operation of the web winder, and is rotated by the rotation of the drum. a winding core that rotates and revolves and winds the web;
When the winding of the web on the winding core progresses and a winding web having a predetermined diameter or more is formed, a rail is provided that guides and moves the winding web in a direction away from the drum as the winding diameter of the winding web increases. In a web winding machine, an arm is provided on the frame of the web winding device so as to be tiltable in the vertical direction and carries a rotatable support roll at its tip, and an arm is attached to another part of the frame so as to face the arm. A cylinder is provided with a rod which is biased by the cylinder and is expandable and retractable in accordance with the tilting of the arm, and whose tip is rotatably connected to the arm by a shaft, and a rod is provided on the side of the drum to allow the web to be taken up. As the winding diameter increases, the length of the arm is adjusted so that the supporting roll can be held at a position where partial pressure is generated in the anti-gravity direction and toward the drum against the winding web that is moving horizontally away from the drum. Select,
The cylinder is characterized in that as the anti-gravity component pressure acting on the support roll decreases, pressure sufficient to compensate for the decrease is applied to the rod.

(Example) An example in which the above configuration is shown in the drawings will be described as follows.

Reference numeral 1 denotes a drum, and winds up a winding web 3 in contact with the drum 1 onto a web winding core 2.
The web take-up core 2 rotates down in the direction of A in the figure along the circumferential surface of the drum 1 while winding up the web 3 and gradually increasing the diameter of the web while being in contact with the circumferential surface of the drum 1. . As the winding diameter of the web 3 that is guided by a guide rail 4 provided horizontally on the side surface of the drum 1 increases, the web 3 moves in the horizontal direction, that is, in the direction of B in the figure, due to the thickening of the web. 5 is a frame. The above-mentioned means are commonly used in conventional surf S winding type winders. In the present invention,
In the horizontal movement process of the web 3, the web 3 is brought into close contact with the drum 1, and the web is prevented from bending or breaking due to increased weight due to thickening of the web. A web winding mechanism or support mechanism is provided that allows a wide adjustment range of web hardness.

The support mechanism is configured such that the arm 11 can be tilted in the vertical direction by rotatably attaching a rotary shaft 12 with the base 11a of the arm 1 fixed to the frame 6 of the web winding device located below the winding drum 1. do. Support roll 1 is attached to the tip of the arm 11 mentioned above.
Attach 3 so that it can rotate freely. 13' is its axis. Note that when the support roll 13 first comes into contact with the rotating take-up web 3, if it remains stationary, it will adversely affect the web. Therefore, it is necessary to rotate the support roll 13 so that it is approximately equal to the circumferential speed of the web, and is driven at the circumferential speed. The above drive is performed by interlocking the rotation of the drum 1 with belts 30, 31, and 32 as shown by the two-dot chain line in FIG.
33, 34, 35, and 36 are pulleys. The support roll 13 always moves in the opposite direction to the direction of gravity in the process in which the roll is guided by the guide rail 4 and moves in the horizontal direction as the winding diameter of the winding web 3 increases. The length of the arm 1 is determined, and the support roll 13 is positioned so that the arm 1 is in a position where pressure is applied in the direction of the arm 1 and the direction of the drum 1. 8 is a Nitpro roll, which did not exist in conventional SurfS winding type winders, so it pressed both ends of the winding core shaft as shown in Figure 3, so only both ends were pressed strongly, and the contact pressure at the center was small. This problem was solved by making it possible to apply pressure evenly.

The lower part of the link 14 is fixed to the rotating shaft 12. The link 14 is fixed to the arm 11 at an angle α on the side opposite to the side where the guide rail 4 is provided, and is configured to tilt in conjunction with the tilting movement of the arm 11. In addition, in the illustration, α is formed at 35°.

By rotatably attaching the base of the cylinder 21 to another frame 7 located below the guide rail 4 side of the web winding device, the cylinder 21 can be tilted in the vertical direction, and the tip of the cylinder can be placed on the arm 11 side. turn towards A tip 23 of the cylinder rod 22 is rotatably attached to the tip of the link 14. 15 is an axis.

As described above, the support roll 13 is guided by the guide rail 4 while winding up the winding web 3.
The piston 22 is tilted downward in order to always press and support the take-up web 3, which is moving horizontally while being wound, at the position where the partial pressure is applied via the take-up web. cylinder 2
1 is inserted and compressed, cylinder 21, piston 2
2 is in the state shown by the chain line. The partial pressure is applied to the web in order to maintain sufficient strength to prevent the web winding core shaft 2' from bending or breaking during the process in which the weight of the winding web 3 gradually increases. The winding core shaft 2' is pressed with a pressure sufficient to compensate for the necessary strength required for the winding core shaft 2'. Therefore, the cylinder 21 gradually increases the pressure under the above conditions as the weight of the web becomes thicker.
This pressure is transmitted to the support roll 13 via the rod 22. Note that the cylinder may be either an air cylinder or an oil cylinder.

[Effects of the Invention] As described above, the present invention provides a surf-s winding type web winding device in which the web winding core moves along the circumferential surface of the drum while winding the web, and horizontally moves at a predetermined position. When moving, in the process of the horizontal movement, a support roll applies appropriate pressure in a predetermined direction, that is, an appropriate pressure contact to the drum side, through the web that is being wound around the web take-up core and is becoming thicker. In order to support the web take-up core shaft by pressure contact with the minimum pressure that only reinforces the lack of strength required for the web take-up core shaft, the web take-up core shaft prevents bending and breakage,
Moreover, it has the effect of widening the adjustment range of winding hardness and making it possible to obtain a good product.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention,
FIG. 1 is a front view, FIG. 2 is an enlarged vertical cross-sectional view of a portion of FIG. 1, and FIG. 3 is a side view showing the known relationship between a winding web and a drum. 1... Winding drum, 2... Web winding core,
2'... Web winding core shaft, 3... Winding web,
5...Frame, 6,7...Frame, 11...
Arm, 13... Support roll, 14... Ring,
15... Pivot, 21... Cylinder, 22... Rod, 23... Rod tip.

Claims (1)

[Claims] 1. A drum, a winding core that is brought into contact with this drum at the beginning of the operation of the web winder, rotates and revolves as the drum rotates, and winds the web, and a winding core that winds the web on the winding core. When the winding web progresses and a winding web with a predetermined diameter or more is formed, the web winding machine is equipped with a rail that guides and moves the winding web in a direction away from the drum as the winding diameter of the winding web increases. It is installed in the frame of the removal device so that it can be tilted in the vertical direction.
An arm carrying a rotatable support roll at the tip,
a cylinder attached to another part of the frame toward the arm; the cylinder is biased by the cylinder so that it can expand and contract according to the tilting of the arm, and its tip is rotatably connected to the arm by a shaft; A rod is provided on the side of the drum at a position where partial pressure is generated in the anti-gravity direction and toward the drum against the take-up web, which is moving horizontally away from the drum as the take-up diameter of the take-up web increases. The length of the arm is selected so as to hold the support roll, and the cylinder applies pressure to the rod sufficient to compensate for the decrease in anti-gravitational pressure acting on the support roll. A winding web support mechanism in a SURF S winding type winder, characterized in that: