JPS6118657A - Turning apparatus for taking-up core - Google Patents

Abstract

PURPOSE:To prevent the deformation of the sheet material taken-up by the weight of a taking-up arm by turning the rotary supporting shaft of the taking- up arm for supporting a taking-up core by two cylinders and supporting the weight of the taking-up arm by the difference of the forces generated by the cylinders. CONSTITUTION:When the taking-up of a sheet material onto a taking-up core 13 is completed, the piston rod 15a of the first hydraulic cylinder 15 is contracted, and the piston rod 16a of the second hydraulic cylinder 16 is set into free state. Then, a pivot shaft 11 having a taking-up arm 12 installed is turned in the X direction by the cylinder 15, and the taking-up core 13 turns in the same direction. When the taking-up core 13 is positioned vertically over the pivot shaft 11, the cylinder 15 is put into free state, and the cylinder 16 is operated in the pulling direction, and the taking-up core 13 is turned by its dead weight. Then, the weight of the taking-up arm 12 is supported by the difference of the forces generated by the cylinders 15 and 16, and the taking-up core 13 is turned to a taking-out position.

Description

Detailed Description of the Invention: a. Industrial Application Field The present invention relates to a rotating device for a winding core, and more specifically, for rotating a sheet material of film material wound around a winding core from a winding position to a take-out position. This invention relates to a device for turning and moving.

b1 Problems to be solved by the present invention In a conventional winding core rotating device, a winding core for winding up a sheet-like material is supported at the tip of a support shaft that is driven and rotated by a motor. Some have multiple arms attached.

This device rotates the arm around the support shaft by starting and rotating the support shaft with a motor, and moves the winding core supported by the tip of the arm and on which the sheet material is wound from the winding position. It is moved to a take-out position and placed on a cart waiting at this take-out position.

However, in this conventional winding core turning device, when the winding core on which the sheet-like material has been wound is placed on the cart at the take-out position, the sheet-like material wound on the winding core is However, since not only its own weight but also the weight of the arm is applied, there is a problem in that the contact surface of the sheet-like material with the trolley is large and the sheet-like material is deformed. In particular, in such a turning device, since the diameter of the sheet-like material wound around the winding core, that is, the stop position of the arm at the take-out position, may differ depending on the type of sheet-like material, it is difficult to effectively deform the material. It was impossible to take measures to prevent this.

The present invention has been made to solve the above problems.

Structure and operation of the C0 invention The present invention provides a support shaft that is rotatably supported on a base body, and a plurality of arms each having a winding core for winding a sheet-like material rotatably supported at the tip thereof, and the support shaft is rotatably supported. In a winding core rotating device that rotates the arm by rotating the winding core to move the winding core from a winding position to a take-out position, a rotating bracket that rotates integrally with the support shaft is attached, and the arm is rotated. Two cylinders are provided, one end of which is rotatably connected to the rotating bracket and the other end of which is rotatably supported by the base body, and the support shaft is rotated by the two cylinders.

According to this winding core rotating device, the two cylinders can not only rotate the support shaft but also support the weight of the arm at the take-out position and hold the support shaft in a stopped state.

The sheet-like material wound up on the winding arm is no longer deformed due to the weight of the arm.

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

Figures 1 and 2 (a), (b) and (c) show an embodiment of the present invention, with Figure 1 being an overall schematic diagram and Figure 2 (a).
), (b), and (c) are partial schematic diagrams for explaining the operation, respectively.

In the figure, 11 is a pivot shaft (support shaft) rotatably supported by the device base.

A plurality of winding arms 12 (one is shown) are attached to the pivot shaft 11 at predetermined intervals, forming pairs in the axial direction (perpendicular to the plane of the paper). The take-up arm 12 rotates in the direction of arrow X in the figure as the pivot shaft 11 rotates. Further, a winding core 13 for winding up a sheet material such as a film material is rotatably supported at the tip of the winding arm. Note that this winding core 13 is driven and rotated by a motor or the like (not shown).

Further, at the end of the pivot shaft 11, a first mounting portion 14a and a mounting portion 14 that protrude at a predetermined angle with each other are provided.
A rotating bracket 14 integrally formed with b is provided. Each of the first mounting portions 14a of the rotating bracket 14 has a piston rod 15a of the first hydraulic cylinder 15.
Similarly, a piston rod 16a of the second hydraulic cylinder 16 is rotatably connected to the second mounting portion 14b. The cylinder body 15b of the first cylinder 15 and the cylinder body 16b of the second hydraulic cylinder 16 are each rotatably attached to brackets 17, 18 fixed to the device base. Note that 19 is a touch roller supported by the touch roller lever 20.

Next, the effect will be explained. Hereinafter, regarding the operation of the first hydraulic cylinder 15 and the second hydraulic cylinder 16, the piston rods 15a and 16a will be referred to as the cylinder body 15b,
An operating state in which a force is generated that causes the piston rods to protrude from the cylinder bodies 16b is an operating state in the pushing direction, and an operating state in which a force that is retracting the piston rods 15a and 16a into the cylinder bodies 15b and 16b is generated is an operating state in the tensile force direction. , and the piston rods 15a and 16a are the cylinder bodies 15b,
A state in which the user can freely appear and appear from 16b will be described as a free state.

First, when winding of the sheet-like material onto the winding core 13 at the winding position is completed, as shown in FIG. The hydraulic cylinder 16 is set in a free state. For this reason, the pivot shaft 11 is moved by the first hydraulic cylinder 15 at X in the figure.
The take-up arm 12 is rotated in the direction of the pivot shaft 1.
1 and the winding core 13 moves in the direction of the arrow X in the figure.

Next, as shown in FIG. 2(b), the winding core 13 reaches a position vertically above the pivot shaft 11 and rotates with the center of rotation of the pivot shaft 11 and the piston rod 16a of the second hydraulic cylinder 16. When the connection point with the bracket 14 and the connection point between the cylinder body 16b and the bracket 18 are located on a straight line, the first hydraulic cylinder I5 is set in a free state and the second hydraulic cylinder 16 is operated in the tensile direction. Thereafter, the winding core 13 rotates in the direction of the arrow X due to its own weight while receiving a force in the opposite direction from the second hydraulic cylinder 16. Thereafter, as shown in FIG. 2(c), the winding core J3 is moved to the take-out position and placed on a cart (not shown). At this time, the second hydraulic cylinder 16 generates a larger force in the tensile force direction, and the second hydraulic cylinder 16 generates a larger force in the tensile force direction.
The hydraulic cylinder 15 generates a smaller force in the suppression direction than the second hydraulic cylinder 16 in response to the weight of the take-up arm 12. That is, the second hydraulic cylinder 16 applies a force acting on the pivot shaft 11 in the anti-X direction, and the first hydraulic cylinder 15 applies a force acting on the pivot shaft 11 in the X direction. The weight of the winding arm 12 is supported by the difference in force generated by the first hydraulic cylinder 15 and the second hydraulic cylinder 16. Therefore, the winding core 13
The sheet-like material wound up no longer supports the weight of the winding arm 12 at the contact surface with the trolley, and the contact portion with the trolley is no longer deformed.

Also, at this time, the first hydraulic cylinder 15 and the second hydraulic cylinder 16 generate large forces that act in opposite directions, and the weight of the winding arm 13 is supported by the difference in force, so that the winding can be performed accurately. It can support the weight of the arm 13. That is, in general, it is difficult to accurately control the force generated by a cylinder within a relatively small area, but as described above, by generating forces in opposite directions in two cylinders, the difference in force causes the arm 13 to move. In the present invention, which supports weight, it is possible to accurately support only the weight of the winding arm 13, so it is possible to further reduce the force applied to the sheet 1-shaped material wound around the winding core I3. It is.

As another embodiment, it is also possible to leave the first hydraulic cylinder 15 in a free state in the state shown in FIG. In this case, the objective can be achieved by making the operating pressure in the tensile force direction to the second hydraulic cylinder 16 higher than the operating pressure in the pressing direction by an amount commensurate with the weight of the winding arm 2. This method can also be performed by leaving the second hydraulic cylinder 16 in a free state and using the first hydraulic cylinder 15 alone.

O0 Effects of the Invention As described above, the winding core rotating device of the present invention has the effect of preventing the oblique sheet material wound around the winding core from being flattened.

[Brief explanation of the drawing]

FIGS. 1 and 2 (a), (b), and (C) are diagrams of a winding core rotating device according to an embodiment of the present invention;
FIG. 1 is an overall front view, and FIGS. 2(a), 2(b), and 2(C) are simplified front views for explaining the operating state. 11... Pivot shaft (support shaft), 12.
... Winding arm, 13 ... Winding core, 14 ... Rotating bracket, 15.16 ... Cylinder. Figure 1

Claims (1)

[Scope of Claims] A support shaft supported on a base body is provided with a plurality of arms each having a winding core rotatably supported at its tip for winding a sheet-like material, and by rotating the support shaft, the above-mentioned In a winding core rotating device that rotates an arm and moves the winding core from a winding position to a take-out position, a rotation bracket that rotates integrally with the support shaft is attached, and one end of the rotation bracket is rotatable. A winding core turning device characterized in that two cylinders are provided, the other end of which is connected to the base body and rotatably supported by the base body, and the support shaft is rotated by the two cylinders.