JP4877596B2 - Winding device - Google Patents

Description

  The present invention relates to a winding device for winding a belt-like sheet of plastic, paper, metal foil or the like around a winding shaft, and in particular, winds the belt-like sheet around the winding shaft by rotationally driving the winding shaft at a winding position. Then, in order to remove the take-up roll from the take-up shaft, the take-up roll is retracted from the take-up position in the axial direction and can be taken out.

  Conventionally, in the winding device as described above, in order to be able to extract the winding shaft from the winding position, a rail is fixed along the winding shaft extracted from the winding position. The transfer table is slidably mounted, and the transfer table can be selectively driven in both forward and backward directions along the rail by the driving device, and two bearings mounted on the rear end of the winding shaft are mounted. A pair of opposed bearings are inserted into the movable bearing, the pin on the transfer table side is fitted into the ear hole of the movable bearing, the movable bearing and the transfer table are connected, and the winding position is sandwiched and opposed in the axial direction. A plate frame is provided, a cone-shaped hole is provided on the end surface of the winding shaft front end, and a push cup facing the hole is attached to the plate frame on the winding shaft front end side of the pair of plate frames, and the rear end side of the winding shaft A bearing ring that is penetrated by the winding shaft is rotatably provided in the plate frame of the When moved to the winding position, the rear end of the winding shaft is received by two bearings and the front end of the winding shaft is received by the push cup. When the winding shaft is removed from the winding position, the rear end of the winding shaft The portion is received by two bearings and the vicinity of the tip of the winding shaft can be received by the bearing ring.

However, in the conventional winding device, the movable bearing that holds the rear end portion of the winding shaft can be rotated around the pin with respect to the transfer table, and the push cup that holds the front end portion of the winding shaft has a cone shape. Since the tip end is fitted and held in the hole at the tip end of the winding shaft, both ends of the winding shaft at the winding position are supported at two points by a movable bearing and a push cup to form a support beam at both ends. Therefore, the winding shaft is easily bent by a load such as a winding roll. When the winding shaft is easily bent, not only does the winding shaft swing around during winding to cause quality defects such as wrinkling and collapse of the winding roll, but also the winding shaft may be broken. Further, the outer diameter of the winding shaft needs to be adapted to the inner diameter of the standardized tubular winding core, and thus cannot be increased freely. Therefore, in the conventional winding device, the length and the rotational speed of the winding shaft are limited to a predetermined value or less, so that it is not possible to sufficiently meet the demands for widening the strip-shaped sheet to be handled and increasing the winding speed.
No. 1-44520

  Therefore, the present invention suppresses the deflection of the winding shaft during winding, and stops winding in order to sufficiently satisfy the demands such as widening of the belt-like sheet to be handled and high speed of winding. It is an object of the present invention to provide a winding device that can smoothly perform the return from the winding position of the winding shaft in a short time.

  In the present invention, after winding a belt-like sheet around a winding shaft at the winding position, the winding roll is retracted from the winding position in the axial direction and removed in order to remove the winding roll from the winding shaft. A rolling device adapted to be able to perform the above operation, wherein two rolling bearings mounted at predetermined positions on the rear end of the winding shaft are spaced apart, and the two rolling bearings are received and held at predetermined positions. A bearing case, a transfer table that firmly holds the bearing case, a rail that is fixed in parallel to the axis of the winding shaft on the retracted side of the winding shaft at the winding position, and a rail that slidably holds the transfer table; A transfer table drive mechanism capable of selectively driving the transfer table in both forward and backward directions along the rail, two rolling bearings mounted at predetermined positions on the tip of the winding shaft, and the 2 Bearing cylinder that holds and holds a single rolling bearing in place A support for receiving the bearing tube when the winding shaft is in the winding position, a swinging body disposed in front of and near the leading end of the winding shaft at the winding position, A clamp piece fixed on the upper side and the winding shaft side, a fulcrum shaft provided at a predetermined position parallel to a horizontal axis perpendicular to the axis of the winding shaft and pivotally supporting the lower part of the rocking body, and the clamp piece, An oscillating body drive mechanism capable of oscillating and driving the oscillating body about the fulcrum shaft so as to be pressed against and retracted from an upper portion of the bearing cylinder received by the support base; .

  Further, in order to press the bearing cylinder by the clamp piece, a driving source having a small capacity can be used, and in order to reduce the occupied space of the oscillating body driving mechanism, the oscillating body driving mechanism is attached to the oscillating body. The formed operating arm portion, a first pin provided parallel to the fulcrum shaft at a predetermined position below the fulcrum shaft, a first link member provided to be swingable about the first pin, and the first The actuator connected to the link member, and one end thereof is pivotally attached to the first link member and the second pin parallel to the first pin, and the other end is attached to the distal end of the operation arm portion. And a second link member pivotally attached by a third pin parallel to the second pin. When the clamp piece presses the bearing cylinder, an angle formed between the first link member and the second link member is 180. The angle should be close to Then good.

  In the present invention, the winding shaft is supported in the form of a cantilever via two rolling bearings mounted at intervals at the rear end portion when the winding shaft is extracted, and the winding shaft is connected to the front end portion and the rear end portion during winding. It is supported in the form of a fixed beam at both ends via two rolling bearings mounted at intervals on each part. And the front-end | tip part of the winding axis | shaft which needs to open | release at the time of winding-up reel can be firmly hold | maintained at the time of winding-up. In other words, when the winding roll is applied to the winding shaft during winding, the central portion of the winding shaft bends downward, the tip of the winding shaft is lifted in reverse, and the bending of the leading end of the winding shaft is two rolling. Since the bearing tube is transmitted to the bearing cylinder via the bearing, the portion near the tip of the bearing cylinder tends to float up from the support surface on the support base. The bearing cylinder at the tip end of the winding shaft is pressed against the support base by the clamp piece protruding toward the shaft side. In this clamp piece, the closer to the oscillating body, the smaller the deflection angle and the shorter the distance from the fulcrum shaft that supports the oscillating body, so that a large pressing force can be obtained. And when pressing the bearing cylinder with the clamp piece, the closer to the swing arm of the clamp piece, the closer to the tip of the bearing cylinder, so the tip of the bearing cylinder that is most likely to float from the support surface on the support base, The clamp piece can be strongly pressed against the support base at a position where it is difficult to bend. Therefore, the bearing cylinder can be securely held along the support surface of the support base, and the tip of the winding shaft can be securely attached to the support surface on the support base via the two rolling bearings. A constant posture can be maintained. For this reason, a bending moment opposite to the bending moment generated at the central portion of the winding shaft due to the winding roll load or the like occurs at both ends of the winding shaft during winding, reducing the bending moment at the central portion of the winding shaft. Thus, the bending of the winding shaft can be surely kept small. Moreover, the mechanism for holding and releasing the tip of the winding shaft requires a relatively simple and small structure. In addition, since the outer peripheral surface of the bearing cylinder at the tip of the winding shaft is clamped and held between the clamp piece and the support base, there is no need to apply axial thrust to the winding shaft as in the case of using a conventional cone-shaped push cup. There is no need to consider the buckling of the winding axis. Further, the winding shaft can be removed from the winding position and returned to the winding position by the driving force of the transfer table driving mechanism, and the holding and opening of the winding shaft tip can be held by the driving force of the oscillator driving mechanism. Since the clamp piece can be opened and closed, the winding shaft can be extracted from the winding position and returned to the winding position smoothly in a short time. Therefore, it is possible to provide a highly productive winding device that can cope with the widening of the band-shaped sheet to be handled, the increase in the winding speed, and the like.

  FIG. 1 is a schematic front view of a winding device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a front end portion and a rear end portion of a winding shaft arranged at a winding position. The central portion and the portion behind the winding shaft rear end portion returned to the winding device are omitted. As shown in FIG. 1B, this winding device is used to detach the winding roll R from the winding shaft 1 after winding the belt-like sheet S around the winding shaft 1 at the winding position as shown in FIG. 1A. As shown in FIG. 2, the winding shaft 1 is retracted from the winding position in the axial direction, and is spaced from the predetermined position at the rear end portion of the winding shaft 1 as shown in FIG. The two rolling bearings 2 and 3, the bearing case 4 that holds and holds the two rolling bearings 2 and 3 in place, the transfer table 5 that holds the bearing case 4 firmly, and the winding A rail 6 that is fixed in parallel with the axis of the winding shaft 1 on the retracted side of the winding shaft at a position, and that selectively holds the transfer table 5 in both forward and backward directions along the rail 6. Transfer table drive mechanism 7 capable of rotating, and two mounted at predetermined positions at the tip of the winding shaft 1 Rolling bearings 8 and 9, a bearing cylinder 10 that holds and holds the two rolling bearings 8 and 9 in a predetermined position, and a support base 11 that receives the bearing cylinder 10 when the winding shaft 1 is in the winding position; An oscillating body 12 disposed in front of and near the tip of the winding shaft 1 at the winding position, a clamp piece 13 fixed on the upper side of the oscillating body 12 and the winding shaft 1 side, and the winding shaft The fulcrum shaft 14 provided in parallel with the horizontal axis perpendicular to the axis 1 and supported at the lower part of the oscillator 12 and the clamp piece 13 are pressed against the upper part of the bearing cylinder 10 received by the support base 11. In order to move back and forth, an oscillating body drive mechanism 15 that can oscillate the oscillating body 12 about the fulcrum shaft 14 is provided.

  The two rolling bearings 2 and 3 at the rear end of the winding shaft 1 are deep groove ball bearings in this embodiment, and the inner ring of the rolling bearing 2 on the front side (right side in FIG. 2) is fitted in the journal portion of the winding shaft 1. The outer ring is fitted into a housing formed at the tip of the bearing case 4, the inner ring of the rolling bearing 3 on the rear side is fitted into the journal part of the winding shaft 1, and the outer ring is formed at the rear end of the bearing case 4. It is fitted to the inner peripheral surface of the housing. The inner ring of the front rolling bearing 2 is constrained to a predetermined position by the rings 16 and 17 arranged on the front and rear sides thereof. The inner ring of the rear rolling bearing 3 The outer ring is restrained at a predetermined position with respect to the bearing case 4 by an annular cover 4 a fixed to the rear end surface of the bearing case 4. Accordingly, the winding shaft 1 is freely rotatable with respect to the bearing case 4 and is constrained so as not to move in the axial direction.

  In this embodiment, the two rolling bearings 8 and 9 at the tip of the winding shaft 1 are two-row roller bearings. The inner ring of the rolling bearing 9 is fitted into the journal portion of the winding shaft 1, and the outer ring of the bearing cylinder 10. The inner ring of the rolling bearing 8 is fitted to the journal part of the winding shaft 1 and the outer ring is fitted to the housing formed at the front end part of the bearing cylinder 10. The inner ring of the rolling bearing 9 is in contact with the shoulder of the journal portion, and a retaining ring 1c for preventing the inner ring from falling off is attached to the outer periphery of the distal end portion of the winding shaft 1 on the distal end side of the inner ring of the rolling bearing 8. Therefore, the rolling bearings 8 and 9 and the bearing cylinder 10 are restrained so as not to move in the axial direction of the winding shaft 1 with respect to the winding shaft 1, and the bearing cylinder 10 is rotatable with respect to the winding shaft 1.

  On both sides of the winding position, a pair of plate-like machine frames 19 and 20 fixed on the base are erected, and the rail 6 is fixed on a beam member 21 having one end fixed to the machine frame 20 on the rear side. It is. In order to hold the transfer table 5 slidably by the rail 6, the slide body 22 is constrained to the head of the rail 6 in the width direction and the vertical direction of the rail 6 and slidably fitted in the longitudinal direction of the rail 6. In addition, the transfer table 5 is fixed to the slide body 22. The outer periphery of the bearing case 4 is fastened and fixed by a fastening frame 5 a provided on the transfer table 5. Therefore, the winding shaft 1 is supported in the form of a cantilever on the rear end side, and can be rotated around the winding shaft axis with respect to the transfer table 5, and in the winding shaft axis direction with respect to the machine frame 20. It can move forward and backward.

  The machine frame 20 is formed with a hole 23 that is penetrated by the tip portion of the bearing case 4 when the winding shaft 1 returns to the winding position, and the outer peripheral surface of the winding shaft 1 is slid on the front side of the hole 23. A support ring 24 that can be supported is rotatably provided, and the support ring 24 can prevent the winding shaft 1 from being bent in a cantilevered state when being pulled out and being largely bent by the load of the winding roll R. Further, in front of the support base 11 of the machine casing 19 on the front side, when the winding shaft 1 is returned to the winding position, the tip of the bearing cylinder 10 is lifted so as to be smoothly placed on the support surface 11a of the support base 11. A roller 25 is provided.

  The oscillating body drive mechanism 15 includes an operating arm portion 12a formed on the oscillating body 12, a first pin 26 provided in parallel with the fulcrum shaft 14 at a predetermined position below the fulcrum shaft 14, and the first pin 26 as a center. A first link member 27 provided so as to be swingable, an actuator 28 connected to the first link member 27, and one end thereof is pivoted to the first link member 27 by a second pin 29 parallel to the first pin 26. The other end portion is composed of the second link member 31 pivotally attached to the tip end portion of the operating arm portion 12a by a third pin 30 parallel to the second pin 29. When pressed, the first link member 27 and the second link member 31 are configured to have an angle close to 180 degrees.

  The operating arm portion 12a is integrated with the swing body 12 and swings about the fulcrum shaft 14. The fulcrum shaft 14 and the first pin 26 are lined up and down along the machine frame 19 and are held at their predetermined positions by brackets 32 fixed to the machine frame 19 with bolts 32a. Since the bracket 32, the operating arm 12a, the first link member 27, and the second link member 31 are all linked by a turning pair, they are in a four-node rotation chain. In order to make the angle formed by the first link member 27 and the second link member 31 close to 180 degrees when the oscillating body 12 tilts in the direction in which the clamp piece 13 presses the bearing cylinder 10, the bracket 31 , The length of the fixed link (the distance between the fulcrum shaft 14 and the first pin 26) is the longest, the operation arm 12a is the second longest, and the first link member 27 is the shortest. Thus, a booster is configured.

  In this embodiment, the actuator 28 is a fluid pressure cylinder device that can receive the pressure fluid and advance and retract the piston rod 28 a from the cylinder 28 b, and is arranged along the machine frame 19 below the bracket 32. In order to connect the actuator 28 capable of swinging the swing arm 12 to the first link member 27, the lower end portion of the cylinder 28b is pivotally attached to the bracket 33 fixed to the machine frame 19 below the bracket 32 with a pin 34, The tip of the piston rod 28a is pivotally attached to the first link member 27 with a pin 35.

  As shown in FIG. 3, the brackets 32 are provided on both sides of the oscillating body 12, and a pair of both ends of the fulcrum shaft 14 and the first pin 26 are orthogonal to the axis L1 (perpendicular to the paper surface) of the winding shaft. Is held parallel to the horizontal axis L2. The upper part of the rocking body 12 is formed in a disk shape, and a clamp piece 13 is fixed to the rear surface of the upper part of the rocking body 12 by a plurality of bolts 13b.

  As shown in FIG. 4, the clamp piece 13 has a pressing surface 13 a formed on the lower surface thereof along the upper portion of the outer peripheral surface of the bearing tube 10. In this embodiment, the clamp piece 13 is formed on the outer peripheral surface of the bearing tube 10. A rotating body having a matching inner peripheral surface is formed, and the rotating body is cut along a plane passing through the central axis.

  The support base 11 is fixed on the machine frame 19 with bolts 11b and 11c. The support base 11 has a support surface 11a formed on the upper surface of the support base 11 along the lower portion of the outer peripheral surface of the bearing cylinder 10, The bearing cylinder 10 can be received by the support surface 11a. In this embodiment, similarly to the clamp piece 13, a rotating body having an inner peripheral surface matching the outer peripheral surface of the bearing cylinder 10 is formed, and the rotating body is cut along a plane passing through the central axis. .

  As shown in FIG. 1A, the gear 18 fixed to the rear end of the winding shaft 1 is connected via a gear 38 attached to the tip of a swinging arm 37 that can swing around a support shaft 36 parallel to the winding shaft 1. The gear 39 can be engaged with a gear 39 disposed at a predetermined position, and the power of a winding drive motor (not shown) is transmitted to the gear 39. The gear 38 swings the swing arm 37 to move the winding shaft 1 to the meshing position with the gear 18 and the gear 39 after the winding shaft 1 returns to the winding position, and the winding shaft 1 moves backward from the winding position. When, and when returning to the winding position, the gear 18 and the gear 39 can be retracted.

  The transfer table drive mechanism 7 is screwed into a female screw body 40 fixed to the transfer table 5 and extends in parallel with the rail 6, and the screw rod 41 is selectively rotated in both forward and reverse directions. When the screw rod 41 is rotationally driven by the motor 42, the transfer table 5 moves along the rail 6 together with the female screw body 40, and when the rotation direction of the screw rod 41 is reversed, the moving direction of the transfer table 5 Therefore, the transfer table 5 can be selectively driven in both forward and backward directions.

  The winding shaft 1 is a known one, and the inner peripheral surface of the winding core C can be gripped by supplying compressed air via a rotary joint 1b provided at the rear end thereof.

  In the winding device of this embodiment, as shown in FIG. 1A, the belt-like sheet S is guided to the winding shaft 1 disposed at the winding position via the touch roller 42 and the winding shaft 1 is driven to rotate. The belt-like sheet S wound around the tubular core C attached to the outer peripheral surface of the sheet and wound around the core C forms a winding roll R. At this time, the transfer table 5 is arranged at the position shown in FIG. 1A by the transfer table drive mechanism 7. The clamp piece 13 is pressed against the upper portion of the outer peripheral surface of the bearing cylinder 10 at the tip of the winding shaft 1, and the bearing cylinder 10 is pressed against the support base 11 and fixed.

  In order to press the clamp piece 13 against the upper portion of the outer peripheral surface of the bearing cylinder 10, the oscillating body 12 is driven by the oscillating body driving mechanism 15 in a direction in which the upper portion of the oscillating body 12 approaches the winding shaft 1. For this purpose, in FIG. 2, the actuator 28 is operated in the direction in which the piston rod 28a advances from the cylinder 28b. Thereby, the piston rod 28a pushes the first link member 27, the first link member 27 rotates about the first pin 26 in the counterclockwise direction in FIG. 2, and the rocking body 12 is integrated with the operation arm portion 12a. Rotating around the fulcrum shaft 14 through the second link member 31 in the same direction as the rotation direction of the first link member 27, the pressing surface 13a of the clamp piece 13 contacts the upper part of the outer peripheral surface of the bearing cylinder 10, The upper part of the outer peripheral surface of the bearing cylinder 10 is pressed with a pressing force based on the driving force of the oscillator driving mechanism 15. At this time, the closer to the tip of the bearing cylinder 10 that is likely to be lifted from the support surface 11 a on the support base 11, the stronger the pressing can be made at a position where the bending of the clamp piece 13 is smaller, and the bearing cylinder 10 is reliably supported. It can be along the support surface 11a. In order to retract the clamp piece 13 from the bearing cylinder 10, the actuator 28 is operated in the direction in which the piston rod 28a retracts. Then, the oscillating body 12 rotates clockwise about the fulcrum shaft 14 and tilts, and the clamp piece 13 moves backward from the outer peripheral surface of the bearing cylinder 10 and rises. As a result, the bearing cylinder 10 can be retracted from the support base 11 in the axial direction of the winding shaft 1.

  In FIG. 1A, when a predetermined amount of the sheet S is wound up to complete the winding roll R, the rotational driving of the winding shaft 1 is stopped and the winding roll R is removed from the winding shaft 1. To remove the take-up roll R from the take-up shaft 1, the take-up roll R is placed on the carry-out table 26 and held as shown in FIG. 1B. Further, the oscillator 12 is driven by the oscillator drive mechanism 15 and tilted as shown in FIG. 1B, whereby the clamp piece 13 is retreated from the upper part of the outer peripheral surface of the bearing cylinder 10 and lifted. Further, the core C is released from the winding shaft 1 by stopping the compressed air to the rotary joint 1b. Thereafter, the transfer table 5 is driven by the transfer table drive mechanism 7 to be retracted to the position shown in FIG. 1B, whereby the winding shaft 1 is removed from the winding position.

  When removal of the winding roll R from the winding shaft 1 is completed, the winding roll R is unloaded from the winding position together with the carry-out table 26, and then the winding shaft 1 is returned to the winding position in order to resume winding. For this purpose, the transfer table drive mechanism 7 drives the transfer table 5 to advance, thereby moving the winding shaft 1 toward the winding position. Then, before the winding shaft 1 reaches the winding position, the winding core 1 is attached to the winding shaft 1 by extrapolating from the tip (tip of the bearing tube 10). Thereafter, the bearing cylinder 10 at the front end of the winding shaft 1 that is moving forward is placed on the support surface 11a on the support base 11 via the roller 25 in this embodiment, and moves forward along the support surface 11a. When the bearing cylinder 10 reaches the position shown in FIG. 2, the driving of the transfer table 5 by the transfer table driving mechanism 7 is stopped in order to stop the advancement of the winding shaft 1. Thereafter, the clamp piece 13 is pressed against the upper portion of the outer peripheral surface of the bearing cylinder 10, and the bearing cylinder 10 is clamped and fixed between the clamp piece 13 and the support base 11.

  Although the present invention has been described with reference to one embodiment, the embodiment of the present invention can be variously changed without changing the gist of the invention as necessary. For example, the support base and the clamp piece are not necessarily in contact with the entire outer peripheral surface of the lower half and the upper half of the bearing cylinder as shown in FIG. In addition, the support surface on the support base that receives the bearing tube may be inclined with respect to the horizontal winding axis so that the winding position side is slightly higher than the outside, if necessary.

It is a schematic front view of the winding apparatus which concerns on one Example of this invention. It is sectional drawing which shows the front-end | tip part and rear-end part of the winding axis | shaft arrange | positioned in the winding position. It is a right view which shows a rocking body and a rocking body drive mechanism. It is an AA arrow cross section in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rolling shaft 2 Rolling bearing 3 Rolling bearing 4 Bearing case 5 Transfer stand 6 Rail 7 Transfer stand drive mechanism 8 Rolling bearing 9 Rolling bearing 10 Bearing cylinder 11 Support stand 11a Support surface 12 Oscillator 13 Clamp piece 14 Support shaft 15 Oscillator drive Mechanism 26 First pin 27 First link member 28 Actuator 29 Second pin 30 Third pin 31 Second link member

Claims (2)

  After winding the belt-like sheet around the winding shaft at the winding position, in order to remove the winding roll from the winding shaft, the winding shaft can be retracted from the winding position in the axial direction and removed. And two rolling bearings mounted at predetermined positions on the rear end of the winding shaft at intervals, and a bearing case that houses and holds the two rolling bearings at predetermined positions. A transfer table that firmly holds the bearing case, a rail that is fixed in parallel with the axis of the winding shaft on the winding shaft retracting side of the winding position, and a rail that holds the transfer table in a slidable manner, and the transfer table. A transfer table driving mechanism capable of selectively driving in both forward and backward directions along the rail, two rolling bearings mounted at predetermined positions on the tip of the winding shaft, and the two rolling bearings A bearing cylinder that is received and held in place, and the winding A support base that receives the bearing cylinder when it is in the winding position, a swinging body disposed in front of and near the front end of the winding shaft at the winding position, an upper portion of the swinging body and the winding shaft A clamp piece fixed on the side, a fulcrum shaft provided at a predetermined position parallel to a horizontal axis perpendicular to the axis of the winding shaft and pivotally supporting the lower part of the oscillator, and the clamp piece A winding device comprising: an oscillating body drive mechanism capable of oscillating and driving the oscillating body about the fulcrum shaft so as to be pressed against and retracted from an upper portion of the bearing cylinder received.   The oscillating body drive mechanism is configured to be able to oscillate around the first pin, an operating arm portion formed on the oscillating body, a first pin provided parallel to the fulcrum shaft at a predetermined position below the fulcrum shaft. The provided first link member, the actuator connected to the first link member, and one end portion pivoted to the first link member by a second pin parallel to the first pin, and the other end A second link member pivotally attached to the tip of the operating arm by a third pin parallel to the second pin, and when the clamp piece presses the bearing cylinder, The winding device according to claim 1, wherein an angle formed with the second link member is an angle close to 180 degrees.

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