JPS5924528A - Strip storing device - Google Patents

Abstract

PURPOSE:To obtain a strip storing device simple in mechanism, small in the number of parts and low in manufacturing cost by so constituting that the diameter of the circumscribed circle of the roll is enlarged or reduced by relative rotation of a set of cylinders in which one of roller cages is made to double cylindrical structure. CONSTITUTION:A strip S is wound on the outer roller cage (a), inverted by a deflector roll 16, wound on the inner roller cage (b) and pulled out from inside. The cage (a) is rotated by driving of a pinion 9 according to supply and pulling out of the strip S, and storing and discharging of the strip S are performed. When discharging, 23 is rotated through a shaft 24. A rack 21 is moved in circumferential direction and a movable cylinder 6 is moved relatively against a fixed cylinder 1, and a roller 12 of an inside roll 11 is moved along a guide hole 9. As the hole 9 is tilted at required angle to the radius, it moves in radial direction by sine component of displacement of the roller 12, and all link levers 13, i.e. the roll 11 is moved by the displacement. The cage (b) is enlarged and reduced by relative rotation of the cylinder 6.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a strip storage device capable of converting intermittent transfer of transferred strips into continuous transfer, continuous transfer into intermittent transfer, and continuous transfer into temporary stop.

For example, in the production of strips in a steel factory, continuous processing equipment for mass production is used, such as continuous pickling equipment, continuous cold rolling equipment, continuous annealing equipment, continuous plating equipment, etc. On the IJ tube loading side, loading the strip coil into the unwinding device,
In order to perform intermittent work such as welding and connecting the leading strip and the following strip, and intermittent work such as cutting the winding coil and strip, carrying out the winding coil, and winding the tip of the strip on the strip feeding side, the strip Strip storage devices have been employed on both the feed and feed sides.

As an example of a conventionally used strip storage device,
As shown in Figure 1, the fixed guide roll aba2+ aL
a4+ a5 and elevating guideway - /l/ b], b2.
h3゜b4 are provided, and these fixed guide holes ~ 121
．． a2゜α3. a4. (Z5 and the elevator guideway
Strip S alternately between I, b2+ 43+ '4
through the lifting guide roll h, b2. h3. h4
is raised and lowered within a height range H to absorb the difference in speed between intermittent processing and continuous processing.

As another example of the conventional device, as shown in FIG.
A trolley LC equipped with guide rolls Rc is provided so that it can travel within a length t by a travel drive device TD, and the difference in speed between intermittent processing and continuous processing is adjusted between guide rolls Rh and Rd. The one that is made to absorb is used,
It is.

However, with these conventional devices, the scale of the devices has increased as equipment speeds have increased and mass production has increased, making it economically and inconvenient to handle, and small-scale storage devices have become desirable. Upon request, a rotating IJ tube storage device was proposed.

Examples of the above-mentioned rotary storage device include those shown in FIGS. 6 and 4. In the one shown in FIG. 6, the strip (S) is forced into the outer roller cage (a) from the outside and is fed between the outer roller cage (α) and the inner roller cage (h) to form two spirals ( C) (d) is formed and stored, and is also pulled out from the outside of the inner roller cage (15) to the inside and the direction changing inclined roller (f)
It is then sent out to the outside. These two spirals (C) (d
) are connected via a free reversal loop (e) formed by free elastic bending action, and are wound in opposite directions. The operation of storing the strip in the outer spiral and the inner spiral is as follows: (1) When the IJ tube (S) is pushed and fed and the number of turns is increased while rotating the outer spiral (C), the free reversal loop (e) also moves in the same direction. Rotate around 1 and turn inside (l'ill)
A strip (S) is wrapped around the outside of the spiral (d);
The number of turns increases. Conversely, when releasing the strip (S), if the strip (S) is pulled out from the inside of the inner spiral (d), the inner spiral (d) rotates while decreasing the number of turns, and a free reversal loop (el is in the opposite direction to the above) is formed. The number of turns of the outer spiral (C) also decreases.

In the one shown in Fig. 4, an outer spiral (C) is formed outside the outer roller cage (Ct), and the strip (S) runs between the rollers of the outer roller cage (a). By rotating the outer roller cage (α), the outer spiral (C) rotates and the number of turns increases, and the inner spiral (tIll) is connected to the inner spiral (d).
The number of turns of d) increases, and S) and lip (S) are stored. To release the strip (S), pull it out from the inside of the inner roller cage ψ), and
The e1-rackage (a) may be rotated in the opposite direction to that described above.

J: There are differences in the strip storage methods in the two examples, but in either method, it is necessary to expand or contract one or both of the outer roller cane and the inner roller cage for the following reasons.

First, in the case of the push-in type (Fig. 6), in order to maintain the radius of curvature of the free reversal loop at the required value without depending on the number of turns of the inner and outer spirals, when the number of turns increases, the so-called thickening of the winding occurs, the radius of curvature of the free reversal loop is kept at the required value. This is to alleviate the fact that the distance between the two points becomes smaller and the movement space of the free inversion loop becomes tighter.

In addition, in the case of the tension type (Figure 4), in order to eliminate relative slip between the strips in the spiral and prevent scratches on the strip surface, when the spiral rotates, the strips of each layer should rotate at the same angular velocity. For this purpose, it is necessary to expand and contract the roller cage in response to the change in the inner diameter of the spiral that occurs when the strip is pulled out from the inside of the roller cage 1g11 so that the radius of each layer does not change.

Next, the expansion and contraction mechanism of the conventional rotary strip storage device will be explained.

FIG. 5 explains the expansion and contraction mechanism of the push type rotary strip storage device, in which the outer roller cage (a) and the inner roller cage (t61) outer roll (g) and inner roll (h) The slider blocks (O) and (0) are connected to the link levers (k) and (1), respectively, and the slider blocks (O) and (0) are connected to the link levers (k) and (1), respectively. ), 0), that is, the outer roll (g) and the inner roll (by moving the gradient in the radial direction, the outer roller cage (
It is designed to expand and contract a) and inner roller cage/(h). Link lever (&), expansion/reduction of f phrase is /link (
η, (performed by slope, link lever (k), (&
The links between link levers (k) and (1) are connected by link levers (p) by tie rods (O), and the link levers (k) and (1) are rotated by the link levers (k). ) and (), the amount of rotation is constant for each phrase.

Furthermore, Fig. 6 explains the expansion/contraction mechanism of the tension type rotary strip storage device, and shows that each outer roll (g) and inner roll (A) of the outer roller cane (a) and the inner roller cage (5) are Each cylinder (77s, (7L)
The outer roll (!ri) and the inner roll (h) are moved in the radial direction by the expansion and contraction of the cylinder (77+1, (r+,)).

However, in the expansion/contraction mechanism in the conventional example described above, (1)
The mechanism is complicated. (11) There are many parts. (For this reason, the device is expensive and maintenance is troublesome. 4v) The storage device occupies more space than the storage space. As the size increases, the storage capacity is small compared to the size.M It is difficult to adjust the amount of movement of each roll to a constant level because the inner and outer rolls are moved through mechanisms attached to each roll. (vD) When positioning the inner and outer rolls in concentric circles, there is no reference point, so the arrangement circles of the rolls are irregular and the roundness is poor. (vii) If the roundness is poor, the introduction and storage of the strips There are occasional defects in the shade, such as problems with the rotation of the whirlpool.

The present invention solves all of the above-mentioned drawbacks, and at least one of the roller cages has a double cylindrical structure so that both cylinders can rotate relative to each other, and each roll can be freely rotated at a required pitch in one cylinder. The diameter of the circumscribed circle of the roll is supported by the expansion/contraction J function, and the other cylinder is provided with an inclined guide corresponding to each hole, and the roll h11 is engaged with the guide to allow relative rotation of both cylinders. This is characterized in that the diameter of the circumscribed circle of the roll is expanded or contracted by the following steps.

Embodiments of the present invention will be described below with reference to FIGS. 7 to 10.

Frame plates on both ends of the fixed inner cylinder (1) (21 (2)
1 and fix each 〕゛frame play (2) (
A pivot (3) is installed at a required pitch on a concentric circle with the fixed inner cylinder (1) of N+, and a guide roller (4) is fitted into the pivot N+ (3) so as to be rotatable. The outer m (5) is fitted into the center side of the guide roller (4) so that it can rotate freely, and a guide roller (not shown) is provided on the frame plate (2) (2) to restrict movement in the axial direction. . A movable inner cylinder (6) is rotatably fitted into the fixed inner cylinder (11), and a serrated ring (for fixing the force) slides on both ends of the movable inner cylinder (6). There are guide flanges (8
), and the guide flange (8) is movable! It is adapted to rotate in one direction with the inner cylinder (6). Furthermore, the guide flange (8) has a substantially rectangular inclined guide hole (9).
), the serrated ring ( 7) The same number of holes are drilled at the required pitch as the teeth (10). Each guide hole (9
), insert the shaft of the inner roll ([I) into each of them, fit the roller into the shaft, and removably fit the roller a into the guide hole (9).The shaft of the inner roll aυ The inner roller cage extends further from the guide flange (8) and is rotatably supported by a link lever (13) whose shaft end is pivotally supported by each tooth (16) of the serrated ring (7). (h). ``The outer cylinder (5) is arranged and pivoted to have an outer roll (14) in a substantially cylindrical shape concentric with the substantially cylindrical shape formed by the inner roll UK, and an outer roller cage is formed. (a) constitutes 4, and an outer cylinder (5
) through which the strip (S) can be passed through the window (15
), and a deflector roll (16) is provided in place of the outer roll 04) at a position facing the window α5). In addition, internal teeth are carved all around the inner edge of the outer cylinder (5) to form an internal gear α force, and a pinion (not shown) fixed to the drive shaft side of a motor (not shown) is attached to the gear part aD. Engage t91.

A long hole (20
), and the movable cylinder (6) has a long hole (2
Attach the protruding rack (21) to 0). Here, the rack (2I) has a length sufficient to allow the movable inner cylinder (6) to rotate through the required angle, and the elongated hole (20) also has a length that allows the rack (21) to move. - It has sufficient length for both. A shaft support block (22) is fixed to both sides of the elongated hole (20), and the pinion (23) meshed with the rack CD is rotatably supported by the block (22). 24) extends forward and is connected to a motor (not shown).

In addition, (25) in the figure shows a support stand (2) inside the fixed inner cylinder (1).
6) is a guide roll which is fixedly fixed at j~ through j and is provided with a plurality of disk rollers (not shown) rotatably in a spiral shape, and is used to change the direction of conveyance of the strip (S).

In the above configuration, the strip (S) is wound around the outer roller cage (α) a required number of times, reversed by the deflector roll 06), wound around the inner roller cage (5) the required number of times, and pulled out from the inside. The direction is changed by the guide roll (25) and pulled out. Thus, the outer roller cage (a) is rotated by driving the pinion 09) in response to the supply and withdrawal of the strip (S), thereby performing storage and discharge operations of the strip (S).

During storage and discharge operation, in order to rotate the inner spiral (dl) integrally without slipping of each layer, the above-mentioned method 18, 1986, was used.
-24528(4) Connect the inner diameter of the inner spiral (d) to the inner roller cage (h)
It is necessary to compensate by scaling. This expansion/contraction operation is performed as follows.

The pinion (23) is rotated via the shaft (24) to move the rack (21) a required amount in the circumferential direction. Rack (21
), the movable cylinder (6) rotates relative to the fixed cylinder (1), and the rollers (12) of each inner roll U move along the guide holes (9). Here guide hole (9)
is inclined at the required angle with respect to the radius, so
The entire link bar (I3) is tilted, ie the inner roll Uυ is moved, by the radial displacement of I2). Therefore, the movable cylinder (
6) The inner (till roller cage (
A) is scaled.

Furthermore, the inner diameter change of the inner spiral (d) is a continuous change,
The rate of change depends on the discharge rate, discharge rate, and thickness of the strip, but a plate thickness measuring device, a strip transfer rate measuring device, a computer, etc. are installed to calculate the rate of change in the inner diameter, and the rotation of the pinion (23) is performed. Control the scaling operation by controlling the speed.

Although the above embodiment shows the case where the expansion/contraction mechanism is provided on the inner roller cage, it may also be provided on the outer opening to the rack cage (a) as shown in FIG. 11. Furthermore, as shown in FIG. It may be provided in the cage (al(5)).

When expanding and contracting the outer roller cage (a) using the same method as described above, various mechanisms can be considered. For example, the outer cylinder has a double cylinder structure, and both of the double cylinders have an inner circumferential surface or Rack teeth are carved all around the outer circumferential surface (one rack tooth corresponds to the internal gear part θ7) in Fig. 7), and a pinion is engaged with both rack teeth, eliminating the need for expansion and contraction, and the outer roller When rotating the cage (a), both sides of the double cylinder rotate the ridge side pinions that rotate at the same angular velocity, and when expanding and contracting, both sides rotate the ridge side pinions that rotate at different angular velocities. Further, in the above embodiment, the guide flange (8) having the inclined guide hole (9) is connected to the movable inner cylinder (6).
However, the inclined guide for enlarging and contracting the circumscribed circle of the roller does not need to have a guide hole, and it goes without saying that other methods may be used.

Also, the actuator for expanding and contracting is not limited to a motor, but instead of a rack, a bracket is protruded, a bracket is similarly protruded from the inner surface of the fixed side, and 7 links are provided between both brackets to expand and contract the cylinder. The movable inner cylinder may be rotated relative to each other. Furthermore, substantially the same effect can be obtained by using a spring instead of a cylinder and applying a force to expand the roller cage that is sufficient to prevent the spiral from tightening. Further, FIG. 16 shows a case where the present invention is applied to a push-in storage device.

As described above, according to the present invention, (1) the mechanism for scaling is extremely simple; (11)
Only one actuator is needed for expansion/contraction.The roll movement for expansion/contraction is performed centrally, so perfect circular expansion/contraction is possible, and there is almost no need to adjust the circularity during assembly.The 0XA mechanism is simple. (V) It can be made compact and the space utilization rate is extremely high.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the loop storage device, Figure 6,
Fig. 4 is an explanatory diagram of a rotary storage device, Figs. 5 and 6 are explanatory diagrams of a conventional expansion/contraction mechanism, Fig. 7 is a side sectional view of an embodiment of the present invention, and Fig. 8 is a left half view. Figure 1 is a view taken along the arrow A-A in Figure 7, the right half is a view taken along the arrow B-B in Figure 7, Figure 9 is an enlarged view of the inner roll portion in Figure 7, and Figure 10 is a view of the inner roll support section. The partial drawings, FIGS. 11 to 13, are explanatory diagrams showing application examples of the present invention. (α) is the outer roller cage, (h) the fd internal search roller cage, (S) is the strip, (1) is the fixed inner cylinder,
(6) is a movable inner cylinder, (force is a serrated ring, (8) is a guide flange, (9) is an inclined guide hole, (11) is an inner roll, 03) is a link lever, (2v is a rack, (2
31 indicates a pinion. Figure 7 Figure 9 Figure 1

Claims (1)

[Claims] 1) In a strip storage device that winds and stores strips around a pair of inner and outer roller cages, at least one of the roller cages has a double cylindrical structure so that both cylinders can rotate relative to each other, and one cylinder has a required pitch. Each roll is supported by a rotatable eye, and the diameter of the circumscribed circle of the roll can be expanded and contracted, and the other cylinder is provided with an inclined guide that is sealed to each roll, and the roll is engaged with the guide, so that both cylinders are connected to each other. A strip storage device characterized in that the diameter of the circumscribed circle of the roll is expanded or contracted by the relative rotation of the roll.