JPS6246845A - Slitter line constant tension winding device by use of split drum - Google Patents

Abstract

PURPOSE:To automatically regulate irregularities of the wind-up lengths and wind-up tensions of slit band-like plates, by providing a split drum winding device for winding up the band-like plates separately from each other. CONSTITUTION:A rotary sleeve 12 split in several rows, is rotatably fitted on a stationary sleeve 11, and provided with brake shoes arranged such that they may generate frictional force therebetween by means of pistons 18, 19. Therefore, when a torque greater than the frictional force is exerted to the rotary sleeve 12, a slip occurs between both sleeves. Accordingly, due to deviations in thickness among the band-like plates, a rotary sleeve part 12 whose wind-up diameter becomes larger has a higher wind-up speed and therefore, the wind-up tension thereof becomes greater, resulting in a torque greater than the frictional force being exerted. Thereby, a slip occurs, thereby it is possible to automatically regulate irregularities of the tensions of the band-like plates.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Field of Application The present invention is intended to solve the problem of unbalance in winding length and winding tension of each strip caused by thickness deviation after slitting in strip slitting. This invention relates to a winding device that automatically adjusts itself.

(Rono) Conventional technology As shown in Figure 6, the conventional technology consists of a winder (1), tension light generation device rf1 (2), star +31, unwinder (4), and loop (5). It is equipped with a tension generating bag RFI for winding up the strip with constant tension using a winding machine.
(2) Crimp the strips with waterproofing, Feldna, etc.
There were those that applied tension using the frictional force, those that applied a roll pridle system, and those that applied a belt system. is not completely flat; it is thicker in the center and thinner at the ends.

When this is slit and wound, the thicker strips have a larger winding diameter than the thinner strips, resulting in a difference in the winding speed of each strip, that is, the winding length. Conventional machines require a tension generator that applies tension to each strip and a loop that adjusts the difference in winding length of each strip, so equipment costs are high and a deep loop bit is essential. In addition, there was a drawback that the tension device caused scratches on the surface of the product.

(d) Means for solving the problems All the problems mentioned in item 1 can be solved by providing a split drum winding machine that separates each slit strip from each other. do.

(It is divided into multiple rows, each independent rotating shaft is rotatably sandwiched between the drive shafts, and the torque is transmitted by a friction plate. The strip is wound up while generating slippage between it and the shaft.

After winding is completed, the outer diameter of the winding drum is contracted by actuating the actuator in each rotating sleeve, and the wound strip fill is extracted from the winding drum.

(Example 1) Fig. 1 shows the arrangement of a slitter line equipped with a winding device of the present invention, including an unwinding machine (4), a slitter (3),
It consists of a winding device M (6).

FIG. 2 shows a plan view of the winding device (6) of the present invention, from the reduction gear rl (7) supporting the drive shaft (10), the drive motor (8), and the pneumatic rotary joint (9). Become.

FIG. 3 is a 10S view of the winding drum shown in FIG. 2;

Figure No. 3 is a sectional view taken along line B-B in FIG. 3. FIG. 5 is a longitudinal sectional view of the take-up drum.

As shown in the figure, the drive shaft (10) has a fixed sleeve (11
) is fixed with a key. Furthermore, a rotary sleeve (12) divided into multiple rows is rotatably installed in the fixed sleeve (11), and a piston (+8) is provided with a brake shoe (22) and built in the fixed sleeve (11). ,
(+9), so that a mutual frictional force can be generated. On the outside of the rotating sleeve (12), an external segment (+3) divided into several parts in the circumferential direction is provided with a guide i/I?
(23) The two are brought together, pulled toward the center by the bahira (17), and supported by the sea urchin':,' (14). Furthermore, the wedge (14) is a rotating sleeve (+2)
It is constructed so that it can be moved in the direction of the arrow in FIG. 3 by means of pistons (15) and (16) built in. Each cylinder part of the piston (+5) (+6) - (+a), (+9) has a hole (2 holes not shown in the picture) that penetrates the inside of the drive shaft (10) from the rotary joint (9). rlr! number are connected.The operation of the present invention will be explained based on the following configuration.In Fig. 3, when the piston (15) is actuated, the web (14) moves to the left in the figure (hyper-moves, The outer segment (+3) is located along the guide hY7 (23) and the outer segment (17
) rises while compressing. The outer segment of the grip undergoes a similar movement, thus expanding the outer diameter of the drum. In this state, when the piston (16) is actuated after winding the strip, the web (14) moves to the right in the figure and moves to the outer segment (+3).
is lowered and the outer diameter of the drum becomes biaxial, allowing the wound fill to be extracted.

Next, in FIG. 5, when the piston (18) is actuated, a frictional force is generated between the stationary sleeve (I+) and the rotating sleeve (+2) with the brake shoe (22) sandwiched therebetween. Since torque corresponding to this frictional force is transmitted from the drive shaft (10) to the rotating sleeve (12), the torque corresponding to this frictional force is transmitted to the rotating sleeve (12).
When a torque of 1- is applied to the rotating sleeve (12), slippage occurs between them. Therefore, if the winding diameter differs due to the thickness deviation of each strip, a rotating sleeve with a narrower winding diameter will have a faster winding speed and a larger winding tension.
Since a torque greater than the frictional force is applied, slippage occurs and tension imbalance can be automatically adjusted.

(g) Effect of the invention 1 In the slitter line, each strip of strip after slitting can be wound up with a constant tension regardless of the winding diameter.

2 minutes'lF+ Since the drum can expand and contract, the coil can be easily removed after winding.

3. Since there are no eight ships equipped with tensioning equipment, there will be no problem of scratches. Furthermore, threading work is also done by Tanibo.

4. Differences in winding length of each strip due to plate thickness deviation can be absorbed, eliminating the need for loops and eliminating the need to provide deep loop bits.

5. The entire line is extremely simplified and the length is short, reducing equipment costs and installation space, making operation and maintenance easier.

[Brief explanation of drawings]

Figure 1 is a slitter line layout diagram for implementing the present invention, Figure 2 (
A top view of the winding device, FIG. 3 shows the winding drum 11
1m diagram, FIG. 1 is a BB sectional view of FIG. 3, FIG. 5 is a vertical sectional view of a winding drum, and FIG. 3 is a conventional slitter line arrangement diagram. 190 winding machine 21. Tension generator 3.9 Slitter 411 Rewind @5. , loop 611 winding device 7
1. Reducer 86. Motor 9. .

Claims (1)

[Claims] A rotary sleeve rotatably fitted into an internal sleeve fixed to a drive shaft and divided into multiple rows in the width direction, and a rotary sleeve having approximately the same width as the rotary sleeve and having a number of rows in the circumferential direction. It consists of an outer segment that is divided and supported by a wedge and a spring on a rotating sleeve, and the outer segment is configured to be expanded and contracted along a guide groove via the wedge and spring by an actuator provided in each rotating sleeve. be done. Furthermore, the inner sleeves are configured to press the brake shoes against each rotating sleeve to generate a frictional force and to transmit torque of the drive shaft to the rotating sleeves. With the above configuration, each strip of slit material is wound with a constant tension regardless of the winding diameter, and after winding, the drum is contracted to extract the coil. Tension winding device.