JPS6126293Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a core feeding device in a paper winding device.

A paper winding device supplies a paper core onto two winder drums arranged side by side, winds the paper around the paper core, and then rotates the paper core on the drum and winds it up. Conventionally, as shown in FIGS. 6 to 8, a device for supplying paper cores to winder drums has a belt conveyor b disposed between two winder drums a and a in the axial direction, and the paper cores are fed onto the belt conveyor b. After loading the cores C ₁ to C ₄ and driving the belt conveyor b to transport the paper cores C ₁ to _{C 4} to a predetermined position, push the paper core C 4 at the rear end with the claw e of the pusher d to remove all the paper cores C 1 to C ₄ . The paper cores _C1 to _C4 are moved onto the winder drum a.

However, the lengths of the paper cores C ₁ to _{C 4} are not always the same, and the friction between the paper cores C ₁ to _{C 4} and the belt conveyor b is not constant, so the paper cores C ₁ to _{C 4} are Since the paper core C 4 at the rear does not slide on the belt conveyor b and is not transferred to a predetermined position, that is, the rear paper core C ₄ is not transferred to the front of the claw e of the pusher d as shown in _FIG .
Since the paper cores cannot be rotated downward as shown in FIG. 7, even if the claw e is pushed forward, the paper cores _C1 to _C4 cannot be transferred onto the winder drum by the claw e.

The present invention enables the belt conveyor to reliably transport the paper core to a predetermined position when feeding the paper core to the winder drum, and then allows the pusher to feed the paper core onto the winder drum. be.

In the present invention, a pressure roll is provided in front of a belt conveyor, and the paper core is transferred to a predetermined position by pressing the paper core against the belt conveyor with this pressure roll.

The embodiments shown in the accompanying drawings will be described below. Reference numeral 1 designates two winder drums arranged in parallel.As shown in Fig. 2, the two winder drums 1 rotate in the same direction, and rotate the paper core 2 fed thereon to wind the paper 3 as shown in the figure. It is wound up as shown by the two-dot chain line. 4 is a belt conveyor for supplying the paper core 3 onto the winder drum 1, and is arranged along the axial direction of the winder drum 1 between the two winder drums 1.

5 is a motor that drives the belt conveyor 4, and 6 is a receiver for the paper core 3 provided between the belt conveyor 4 and the winder drum 1.

7 is a pusher consisting of an air cylinder etc.
A claw 9 is attached to the tip 8a of the rod 8 so as to be rotatable downward. Claw 9 as shown in Figure 3.
When the rod 8 is in the retracted position shown by the solid line, the lower surface 9b of the claw 9 comes into contact with the locking part 10, and the rod 8
When the paper core 2 moves forward, the claw 9 is disengaged from the locking portion 10 and rotates downward as shown by the two-dot chain line in the figure, so that its upper surface 9a can come into contact with the rear end surface of the paper core 2. 1
Reference numeral 1 denotes a guide rod attached to the tip of the rod 8. Although the rear part is not shown, it is slidably supported by the holding part of the pusher 7, and when the claw 9 moves forward, the guide rod 9 rotates around the axis of the rod 8. The claw 9 is supported so that it does not rotate.

Reference numeral 12 denotes pressure rollers for pressing the paper core 2 against the belt conveyor 2, and a total of four pressure rollers are arranged on both sides of the paper core 2 and before and after the paper core 2.
The front and rear pressure rollers 12, 12 are supported at both ends of a movable bar 13, and the center of the movable bar 13 is rotatably supported by a support frame 15 by a pin 14. The support frame 15 is attached to support stands 17 attached to frames 16 on both sides of the belt conveyor 4 via adjustable screws 18. By turning the adjustable screws 18, the mutual spacing of the support frames 15 is adjusted, and the paper The positions of the pressure rollers 12, 12 are adjusted according to the diameter of the core 2. As shown in FIG. 3, in the movable bar 13, the front side of the pin 14 is connected to the lower end of a spring 19, and the upper end of the spring 19 is connected to the support frame 15, and the force of the spring 19 keeps the movable cover 13 constantly. A force for rotation in the direction of arrow A13 is applied. A limit switch 20 is provided within the movable range of the front end of the movable bar 13, and the limit switch 20 is electrically connected to the pusher 7 so as to operate thereon.

In use, a plurality of paper cores 2 are arranged in series on a belt conveyor 9, and the paper cores 2 are transferred to the winder drum 1 side by the belt conveyor 4. At this time, the paper core 3 is pressed against the belt conveyor by the pressure roller 12 as shown in FIG. 4, so that it is reliably transported by the belt conveyor 4. When the rear end of the paper core 2 moves to a predetermined position, that is, until it is removed from the front pressure roller 12, the movable bar 13 is moved by the spring 1.
9 rotates downward as shown by arrow A13,
Operate the limit switch 20. The pusher 7 is driven by the limit switch 20, the pawl 9 moves, and the pawl 9 rotates downward from the position shown in FIG. Press the rear edge. After the claws 9 have fed all the paper cores 4 onto the winder drum 1, they return to the position shown by the solid line in the figure.

As explained above, in this invention, a pressure roller is installed in front of the belt conveyor that transports the paper core, so this pressure roller presses the paper core against the belt conveyor, ensuring that the belt and paper core are in contact with each other. Therefore, reliable transfer can be performed, and by interlocking with the pusher, the paper core can be reliably supplied to the winder drum, which is an excellent effect.

[Brief explanation of the drawing]

Figure 1 is an overall view showing one embodiment of the present invention;
The figure is a view taken along the - line in Figure 1, Figure 3 is an enlarged view of the main part of Figure 1, Figure 4 is a left side view of Figure 3, and Figure 5 is a left side view of Figure 3.
The figure is a plan view of FIG. 3, and FIGS. 6, 7, and 8 are diagrams showing the paper core supply state of a conventional paper core supply device, respectively. 1... Winder drum, 2... Paper core, 4...
...belt conveyor, 7... pusher, 9...
Claw, 12...pressure roller.

Claims (1)

[Scope of utility model registration request] In a core feeding device, a belt conveyor is provided along the axial direction between two winder drums, and a pusher is provided on the belt conveyor for feeding paper cores to the winder drum. A core feeding device equipped with a pressure roller that presses the core against the conveyor.