JPS5914460Y2 - Tatsuchi roller device of film winding device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a touch roller for a winding device for thin films such as cellophane, polyester, and vinyl.

As shown in FIG. 1 (front view) and FIG. 2 (top view), the conventional winding device supports a winding film 1 with two winding arms 2, and uses a winding motor 3 to move the winding film 1. It rotates and winds up the running film 4.

The take-up arm 2 is fixed to a take-up arm support shaft 6 supported by a stand 5, and is rotatable.

The take-up film 1 is supported by a take-up cone 7 provided at the tips of two take-up arms 2, and has a structure to which the drive of the take-up motor 3 is transmitted.

The touch roller 8 rotates while constantly pressing against the surface of the take-up film 1, and eliminates the entry of air when the running film 4 is wound around the take-up film 1, thereby stabilizing the winding stiffness and preventing the winding from slipping. are doing.

The touch roller 8 is supported by a touch roller lever 10 fixed to a touch roller lever support shaft 9.

The end face of the touch roller lever support shaft 9 is connected to a rotary actuator 11 (rotary air cylinder),
The touch roller lever 10 can be turned up and down by air pressure.

Conventional touch rollers do not rotate, so when the touch roller is pressed against a rotating take-up film, the tension on the take-up surface changes due to the inertia torque of the touch roll (GD2 torque that rises from rest to the machine speed). However, wrinkles appeared.

Therefore, in order to prevent the occurrence of wrinkles, it was necessary to stop the machine and press the touch roller against the surface of the wound film.

In addition, when the touch roller is pressed while the machine is operating, the drive torque of the winding motor undergoes rapid fluctuations, resulting in poor winding accuracy (unstable winding and irregular winding stiffness).

An object of the present invention is to provide a touch roller device that does not cause wrinkles in the rotating winding film and does not cause sudden fluctuations in the drive torque of the winding motor.

The principle of the present invention is that in order to eliminate the inertial torque of the touch roller, the touch roller is rotated before touching the rotating take-up film, and the outer peripheral speed of the touch roller is made equal to the take-up film speed. , the roll-up film is touched and pressed.

That is, the configuration of the present invention includes a touch roller motor that is attached to a touch roller lever and starts rotating in response to a lowering signal from the lever, and a touch roller motor that transmits the rotation of the motor to the touch roller shaft and that controls the outer peripheral speed of the touch roller. and an adjustment mechanism for making the speed equal to the winding film speed.

Hereinafter, the present invention will be specifically explained with reference to embodiments illustrated in the drawings.

FIG. 3 is a plan view of the embodiment, FIG. 4 is a front view, and FIG. 5 is a front view of the speed adjustment mechanism.

The same parts as in FIGS. 1 and 2 are given the same reference numerals.

In the present invention, as shown in the figure, a large gear 12 is provided on the end face of the touch roller 8, which meshes with a small gear 14 on the shaft of a touch roller motor 13 fixed to a touch roller lever 10, thereby controlling the drive of the touch roller motor 13. The configuration is such that the signal is transmitted to the touch roller 8 supported by the roller shaft 15.

Further, a guide roller 16 for guiding the traveling film from the winding film 1 and a speed adjustment mechanism υ connected to the touch roller motor 13 are provided.

This speed adjustment mechanism 17 includes a speed detection mechanism 18 that detects the circumferential speed of the guide roller 16, and synchronizes the drive circumferential speed of the touch roller motor 13 with the circumferential speed of the guide roller 16 based on a command from the speed detection mechanism 18. It is composed of a synchronous control device 19.

With this configuration, during winding (while the machine is running)
When pressing the touch roller 8 against the take-up film 1, the touch roller lever 10 starts to lower by the rotary actuator 11 in response to a signal to lower the touch roller lever 10.
At the same time, the touch roller motor 11 is also
7, the touch roller 8 is rotated at a peripheral speed synchronized with the guide roller 16.

Therefore, while the touch roller 8 also rotates, the winding film 1 is
pressed against.

As explained above, by pressing the touch roller against the winding film while rotating, the inertial torque of the touch roller is eliminated, wrinkles do not occur on the winding surface, and winding accuracy is improved.

Also, the touch roller can be pressed while the machine is operating.
Continuous winding operation becomes possible.

[Brief explanation of the drawing]

FIG. 1 shows a front view of a conventional winding device, and FIG. 2 shows a plan view thereof. FIG. 3 is a plan view (partial cross section) showing an embodiment of the present invention;
FIG. 4 is a front view thereof, and FIG. 5 is a front view showing the speed adjustment mechanism. 1... Winding film, 4... Running film, 8... Touch roller, 10...
Touch roller lever 13...Touch roller motor, 12.14...Gear.

Claims (1)

[Scope of utility model registration request] It is attached to the tip of the lever, and when the lever is lowered,
In a film winding device equipped with a non-rotating touch roller that descends onto a rotating take-up film and presses it against the surface thereof, the motor is attached to the lever and starts rotating in response to a lowering signal of the lever; and a speed adjustment mechanism that drives the motor at a circumferential speed equal to the circumferential speed of a guide roller that guides the running film from the take-up film. Touch roller device.