JP6443018B2 - Wet processing equipment - Google Patents

Description

  The present invention relates to a roll-to-roll wet processing apparatus for wet processing a web-like processing object such as a film or metal foil wound around a roll.

  In a web processing apparatus such as a film or a metal foil, when the path inside the processing apparatus becomes long, the tension of the web decreases as it moves away from the driving roll that transmits the driving force to the web. Lowering and slipping cause poor conveyance such as web meandering or slack.

  As a method of preventing the meandering and slack of the web, a technique for avoiding it by applying a driving force to a free roll separated from the driving roll is disclosed.

  For example, Patent Document 1 discloses a web conveying method and apparatus that applies a driving force to a free roll using an electromagnetic clutch. However, since electric power is supplied to and controlled by the electromagnetic clutch, it is necessary to make the electromagnetic clutch or the like waterproof and chemical resistant, which increases the cost of the apparatus.

Japanese Patent No. 2767932

  In view of the above problems, an object of the present invention is to provide a wet processing apparatus including a web tension control mechanism that has a simple mechanism and does not require special measures such as waterproof specifications.

As means for solving the above-mentioned problem, the invention according to claim 1 is a roll-to-roll wet processing apparatus , comprising at least a wet processing unit, a motor, a drive shaft connected to the motor, and a plurality of drive processing units. In a wet processing apparatus having a drive roll and a bearing for receiving the drive roll, wherein the plurality of drive rolls are connected to and driven by each of a plurality of friction clutches provided on the drive shaft, torque and rotation of the drive roll The means for pressing the friction plate for adjusting the number is formed by concentrically mounting a coil spring on the outer side of the cylindrical shaft, and by changing the position of the pressing plate mounted on the shaft along the axial direction of the shaft. a wet processing apparatus characterized that you adjust the force applied to the friction plates.

The invention according to claim 2, for adjusting the rotational speed and torque of the drive roll, means for pressing the friction Kosuita is concentric coil spring (k1) to the outside of the cylindrical sheet Yafuto 1 attached to, shea Yafuto comprises a sheet Yafuto 2 inside the 1, shea Yafuto 1 and the double coil spring arranged coil spring (k2) mounted concentrically between the sheet Yafuto 2, shea independently Yafuto 1 and along the second axial, claims, characterized in that the Rukoto changing the position of the push plate 1 and the push plate 2 provided to each of the coil spring, it is to adjust the force applied to the friction plates The wet processing apparatus according to 1.

According to the wet processing apparatus of the present invention, the web tension does not decrease even in the wet processing section, and the conveyance failure such as the meandering and slacking of the web does not occur.

Schematic explanatory drawing which shows an example of a structure of the wet processing apparatus of this invention. Schematic diagram illustrating an example of the configuration of the tension control Organization of the web to be used in the wet treatment apparatus of the present invention. Schematic explanatory drawing which shows an example of a structure of the bearing used with the wet processing apparatus of this invention. Schematic explanatory drawing which shows another example of a structure of the bearing used with the wet processing apparatus of this invention .

The wet treatment apparatus of the present invention will be described with reference to FIG 1-4.
The present invention is a roll-to-roll wet processing apparatus, and includes an unwinding unit for unwinding a web, which is a long object to be processed wound on a roll, from an unwinding roll, and an unwound web A wet processing section for cleaning, developing, etching, resist stripping, draining, and other wet processing, and a winding section for winding the processed web on a winding roll are provided.

  The wet processing unit is provided with a plurality of drive rolls, and each drive roll is connected with a friction clutch for controlling the tension of the drive roll and controlling the tension of the web. The power from the motor as a power source is transmitted to the drive roll.

<Configuration of wet processing equipment and details of its processing>
FIG. 1 is a schematic explanatory diagram for explaining an example of the overall configuration of the wet processing apparatus according to the present invention, and shows the most basic configuration including an unwinding unit, a wet processing unit, and a winding unit. It is.

Each component is provided with various rolls such as an unwinding roll, a driving roll, a dancer roll, a free roll, and a winding roll. The unwinding roll and the free roll are rolls having no driving force, and the other rolls are driving rolls to which a controlled driving force is transmitted.

  First, the web unwound from the unwinding roll passes through the first free roll and reaches the next free roll. The drive roll is in contact with the free roll in a form that sandwiches the web, and gives the web a force to unwind the web from the unwind roll. In FIG. 1, this roll is shown as a drive roll. The drive system for the unwinding drive roll is a drive system different from the drive system for driving the drive roll of the wet processing unit.

  Next, the web passes through the dancer roll 1 and reaches a drive roll provided at a position closest to the wet processing section in the unwinding section. The dancer roll 1 is controlled by the dancer roll 1 control device and adjusts the web tension by moving its position. The drive roll belongs to the same drive system as the drive roll inside the wet processing unit, and its torque and rotation speed are controlled.

  Next, the web enters the wet processing section and reaches the first driving roll closest to the unwinding section in the previous stage in the wet processing section. At this stage, the web is in a position where it is not immersed in the liquid stored in the wet processing section.

  Next, the web reaches the second drive roll of the wet processing section. The second drive roll is provided at a position to be immersed in the liquid.

  The web then reaches the third drive roll. This drive roll is provided at a position where it is not immersed in the liquid, like the first drive roll. In this way, the web is processed by dipping in the liquid stored in the wet processing section and heads for the winding section.

  The web that has entered the winding unit first reaches a driving roll (not shown). This drive roll is controlled by the same drive system as the drive roll of the wet processing unit, and its torque and rotational speed are controlled.

  Next, it passes through a dancer roll, passes through the next free roll, passes through the next free roll, and then is wound on a take-up roll. As the web is wound up, the winding roll has its rotational speed so that the winding speed becomes the same as the speed of the fed web even if the radius of the winding position increases. Be controlled.

  The dancer roll 2 in the winding part is controlled by the dancer roll 2 control device, and adjusts the tension of the web by moving its position.

  As described above, in the wet processing apparatus of the present invention, the friction between the web and the roll is reduced by controlling the torque and the rotational speed of the driving roll of the wet processing unit so that the tension of the web does not decrease. It is possible to prevent the occurrence of conveyance failure such as meandering or slacking of the web that occurs due to becoming too much.

<Control of drive roll>
As shown in FIG. 2, the control of the torque and the rotational speed of the drive roll of the wet processing apparatus of the present invention will be described. In the wet processing apparatus of the present invention, the torque and rotational speed of the drive roll such as the wet processing unit are transmitted from the motor by connecting a drive shaft that transmits power from the motor that is a power source to the friction clutch. Torque and rotation speed can be controlled.

Specifically, a drive shaft that transmits power from the motor for driving the drive roll is connected to a friction clutch, and power is transmitted to the sprocket for transmitting power from the motor to the drive roll via a chain or the like. introduce. At that time, by adjusting the pressing force between the two friction plates inside the bearing , it is possible to control the rotational torque and the rotational speed of the drive roll. The two friction plates are a friction plate provided on the motor side of the drive shaft connected to the motor and a friction plate provided on the sprocket side for transmitting the power from the motor to the drive roll. By pressing one of the plates against the other friction plate, it is possible to control the torque and the rotational speed of the drive roll.

<About bearings >
A bearing used for controlling the torque and rotation speed of the drive roll in the wet processing apparatus of the present invention will be described.
FIG. 3 is a schematic explanatory view showing an example of a bearing used in the wet processing apparatus of the present invention.

This bearing has a coil spring mounted on the motor side of the drive shaft 1 concentrically with the drive shaft, and the driving force from the motor as a power source can move along the axial direction of the drive shaft 1. By changing the position of the push plate 1 as a support plate, the force applied to the friction plate on the motor side of the drive shaft 1 is adjusted by the coil spring, and the torque and the number of rotations transmitted from the motor to the friction plate on the sprocket side are controlled. It is possible to do. When close to the sprocket side along the push plate 1 to the drive shaft 1, thus the Koiruba Ne, since the motor-side friction plates increased force pressing the friction plate of the sprocket side, sliding friction plates is reduced, the motor The torque and the number of rotations transmitted from to the sprocket are increased. Conversely, when the push plate 1 is moved away from the sprocket, the torque is reduced.

FIG. 4 is a schematic explanatory view showing an example of another bearing .
This is a double coil spring in which a coil spring (k1) is concentrically mounted on the outer side of the cylindrical drive shaft 1 and a coil spring (k2) concentrically mounted on the drive shaft 2 is disposed on the inner side. In this friction clutch, the pressing plate 1 and the pressing plate 2 provided in each coil spring can be moved and fixed independently along the axial directions of the drive shafts 1 and 2, respectively. However, k1 and k2 are spring constants of the respective coil springs.

According to such a bearing , for example, if k2 is 1/10 of k1, the force applied to the friction plate by the coil spring having the spring constant of k1 is set, and further the force applied by the coil spring having the spring constant of k2 However, since the resolution at which the force can be set can be reduced to 1/10, there is an advantage that a finer torque and rotation speed of the driving roll can be set.

As described above, the wet treatment apparatus of the present invention, conventionally, changing the role of the wet treatment unit was free roll drive roll, further second bearing, the rotational speed and torque of each roll, the web By adjusting so that the tension does not decrease too much, it is possible to prevent the occurrence of poor conveyance such as meandering or slacking of the web.

Claims (2)

A roll-to-roll wet processing apparatus,
at least
A wet treatment section;
A motor,
A drive shaft coupled to the motor;
A plurality of drive rolls;
With a bearing to receive the drive roll
Have
In the wet processing apparatus in which the plurality of driving rolls are connected to and driven by each of the plurality of friction clutches provided on the drive shaft,
The means for pressing the friction plate for adjusting the torque and the rotational speed of the drive roll has a coil spring concentrically mounted on the outside of the cylindrical shaft, and the press plate mounted on the shaft is connected to the coil spring in the axial direction of the shaft. by changing the position along wet processing apparatus characterized that you adjust the force applied to the friction plates. To adjust the speed and torque of the drive roll, means for pressing the friction Kosuita is a coil spring (k1) is mounted concentrically on the outside of the cylindrical sheet Yafuto 1, sheet inside the sheet Yafuto 1 comprising a Yafuto 2, in the double coil spring arranged the coil spring (k2) mounted concentrically between the sheet Yafuto 1 and shea Yafuto 2, each independently along the axial direction of the sheet Yafuto 1 and 2, each of the wet processing apparatus according to claim 1, characterized in that the Rukoto changing the position of the push plate 1 and the push plate 2 provided on the coil spring, it is to adjust the force applied to the friction plates.