JP5363458B2 - Extruder with slitter - Google Patents

Description

  The present invention is provided with a slitter device for use in removing a coil formed by slitting a wide band material formed by slitting a plurality of narrow band materials into a winding shaft. The present invention relates to an extrusion apparatus.

  A wide sheet steel sheet (wide strip) that has been cold-rolled to a predetermined thickness and wound in a coil shape is supplied from the steel mill to the slit maker, where the coil uncoils (rewinds) the coil. Upon request, this wide strip is cut into narrow strips of various widths, wound up again, and supplied with the desired narrow strip of coil to the customer.

  In general, a slitter apparatus 1 as shown in FIGS. 7 and 8 is used in a line for manufacturing a coil of a plurality of narrow strips from a wide thin steel plate. The slitter device 1 generally has a winding shaft 2 whose diameter is variable (expandable), a drive unit 3 for the winding shaft 2, a main shaft holding unit 4, a movable carriage D (see FIG. 8), a coil transfer device 5, Separator / individual pressing device 6 for slit narrow strip material S2, slit section 7 for slitting wide strip material S1 into narrow strip material S2, and cutting device 8 for cutting narrow strip material S2 by a predetermined length. (For example, refer patent document 1).

  The wide band material S1 is fed out in a longitudinal direction from a belt winding drum (not shown), slit into a narrow width by the slit portion 7, and then coiled by the winding shaft 2 that is rotationally driven by the drive portion 3. It is wound up. Here, when a plurality of narrow strips S2... Cut by the slit portion 7 are simultaneously wound by the winding shaft 2, the tip portion is formed in the longitudinal direction of the outer surface of the winding shaft 2. After being inserted into the insertion groove 2a, the winding shaft 2 is expanded in diameter, and the tip portion is engaged and fixed in the tip insertion groove 2a. Thereafter, the winding shaft 2 is rotated to wind the narrow band material S2. Take it (see Figure 8).

  The coil C of the narrow band material S2 wound around the winding shaft 2 by a predetermined length is slightly released from the engagement after the diameter reduction of the winding shaft 2 or with the diameter reduction, and then waits immediately below. It is lifted by the lifting / lowering mounting table d of the moving carriage D that has been moved and becomes free from the winding shaft 2. In this state, the moving carriage D is moved and removed from the winding shaft 2 toward the coil transfer device 5. However, at this time, although the bite is released and the free part is free, the leading end portion of the narrow band material S2 is deformed by the biting, and when the leading end portion is removed, it is formed in any part of the leading end insertion groove 2a. In such a case, there is a problem that the wound coil can be unwound in a cone shape.

  Therefore, conventionally, an extrusion device 9 as shown in FIG. 8 is attached to the slitter device 1. The extrusion device 9 is generally disposed on the upper side of the winding shaft 2 and is wound on the most proximal side of the winding shaft 2 among all the coils C wound around the winding shaft 2. A coil-shaped coil side surface facing portion 9a that faces the side surface of C, a drive device 9b that moves the coil side surface facing portion 9a forward and backward in the axial direction of the winding shaft 2, and a coil wound around the central portion of the coil side surface facing portion 9a. A convex engagement claw T that is attached to the take-up shaft 2 so as to be close to and away from the take-up shaft 2 and is provided at the center of the front end of the take-up shaft 2 when approached to the take-up shaft 2 It is comprised with the front-end | tip extrusion part 9c inserted.

When all the coils C... Of the wound narrow strip S2 are removed from the winding shaft 2 using the extrusion device 9, first, the tip insertion groove 2a of the winding shaft 2 and the extrusion device 9 are removed. The take-up shaft 2 is rotated so that the engaging claws T provided at the tip push-out portion 9c coincide with each other. Subsequently, the winding shaft 2 is reduced in diameter before and after this so that all the coils C... Can be removed from the winding shaft 2 and then all the coils are moved on the lifting platform d of the movable carriage D as described above. C ... is lifted slightly and the ends of all the coils C ... are pressed together by a batch pressing device (not shown) so as to be free from the winding shaft 2. Subsequently, the tip pushing portion 9c is brought close to the winding shaft 2, and the engaging claw T of the tip pushing portion 9c is inserted into the tip insertion groove 2a. Thereafter, the drive device 9b is operated to press the coil side facing portion 9a against the side surface of the coil, and the movement of the movable carriage D and the coil side facing portion 9a are synchronized with each other to move all the coils C from the winding shaft 2. Remove. At that time, the distal end portion of the narrow band material S2 inserted into the distal end insertion groove 2a also moves together with the coil C while being pressed by the engaging claws T of the distal end pushing portion 9c. For this reason, it is possible to prevent the coils C taken up when the entire coils C ... of the narrow strip S2 are removed from the take-up shaft 2 from being unwound in a cone shape.
JP 2003-94183 A

  In the slitter device 1 equipped with the conventional extrusion device 9, when the winding of the narrow band material S2 is completed, the position of the tip insertion groove 2a of the winding shaft 2 is provided in the tip extrusion portion 9c of the extrusion device 9. When it is at a position facing the engaging claws T (a position immediately below the engaging claws T), the extrusion device 9 can be operated as it is. However, when the winding of the narrow strip S2 is completed, if the position of the leading end insertion groove 2a of the winding shaft 2 is not at the position facing the engagement claw T, the winding shaft 2 as described above. Must be adjusted so that the tip insertion groove 2a of the winding shaft 2 and the engaging claw T face each other. Then, the narrow band material S2 wound up by a predetermined length is further wound up, and there is a problem that the extra length, that is, excessive winding loss increases.

  Therefore, a main object of the present invention is to provide an extrusion apparatus attached to a slitter apparatus capable of minimizing an excessive winding loss during coil winding.

According to the first aspect of the present invention, “the leading ends of a plurality of narrow strips S2 obtained by slitting the wide strip S1 fed in the longitudinal direction in the width direction are provided in the longitudinal direction of the winding shaft 14. When the coil C wound around the take-up shaft 14 is pulled out from the take-up shaft 14, the end-insertion groove 14 d is caught. An extrusion device A attached to a slitter device for extruding the distal end of the released narrow strip material S2 from the distal end insertion groove 14d,
A coil side facing portion 40 that is formed with a loosely inserted circular hole 40a through which the winding shaft 14 is inserted at the end, and that faces the side surface of the coil C wound around the winding shaft 14 when the coil C is removed.
It moves along the inner circumference of the loose insertion circular hole 40a, and is accommodated in an accommodation groove 14f engraved at the base end of the take-up shaft 14 so as to communicate with the distal end insertion groove 14d when winding the coil, and When the coil is removed, an engaging claw 42a is inserted so as to be inserted into the tip insertion groove 14d and pushed out to the position beyond the tip insertion groove 14d by the movement of the coil side facing portion 40 in the tip direction of the winding shaft 14. A tip extrusion member 42;
A drive device 44 for moving the coil side facing portion 40 provided with the tip pushing member 42 forward and backward in the axial direction of the winding shaft 14 ;
At the time of winding the coil, the engaging claw 42 a of the tip pushing member 42 is caught in the receiving groove 14 f of the winding shaft 14, and the tip pushing member 42 is taken up by the rotation of the winding shaft 14. It is an extrusion device A attached to a slitter device, characterized in that it is configured to rotate together with the shaft 14 .

Further, the invention described in claim 2 is the extrusion device A attached to the slitter device according to claim 1 , wherein “a ring in which the tip pushing member 42 is rotatably disposed in the loose insertion hole 40 a. It is a “shaped member”.

In these inventions, the distal end extruding member 42 of the extrusion apparatus A is accommodated in the accommodating groove 14f formed in the proximal end portion of the winding shaft 14 so as to communicate with the distal end insertion groove 14d when winding the coil, and At the time of coil removal, an engaging claw 42a is inserted so as to be inserted into the tip insertion groove 14d and pushed out to the position beyond the tip insertion groove 14d by the movement of the coil side facing portion 40 in the tip direction of the winding shaft 14. Therefore, when the take-up shaft 14 rotates, that is, when the coil is taken up, the engaging claw 42a is caught on the side wall of the housing groove 14f. And come to co-rotate with.

  For this reason, after making the front-end | tip of narrow strip material S2 engage with the front-end | tip insertion groove 14d provided in the winding shaft 14, the said winding shaft 14 is rotated and narrow strip material S2 by predetermined length is obtained. When the coil C is wound up to complete the coil C, the engaging claw 42a of the tip pushing member 42 is always arranged on the axis of the tip inserting groove 14d regardless of the position of the tip inserting groove 14d. It is in the state. Accordingly, there is no need to rotate the winding shaft 14 to align the positions of the leading end insertion groove 14d and the engaging claw 42a, and the narrow band material S2 can be cut at that position. The excessive winding loss of the narrow band material S2 caused by the above can be eliminated.

  Then, after the coil C is completed, the coil C is moved by operating the driving device 44 in accordance with the moving carriage 26 that moves in the axial direction of the winding shaft 14 while lifting and supporting all the coils C as will be described later. At the same time, the loose insertion circular hole 40a formed in the coil side surface facing portion 40 moves along the outer peripheral surface of the winding shaft 14. At this time, the distal end portion of the narrow band material S2 inserted into the distal end insertion groove 14d is also The engaging claw 42a of the tip pushing member 42 attached to the inner periphery of the loose insertion hole 40a moves while being pressed to a position beyond the tip insertion groove 14d, and the tip portion is somewhere for some reason. Even if it is caught in the cable, it is forced to move together with the coil C because it is forcedly pushed out as the moving carriage 26 moves. For this reason, when the coil C is extracted from the winding shaft 14, it is possible to prevent the wound coil C from being unwound in a cone shape.

It is a whole top view showing the outline of the slitter device of one example concerning the present invention. It is a whole front view showing the outline of the slitter device of one example concerning the present invention. It is sectional drawing which shows the principal part in the XX cross section of FIG. It is a YY partial sectional view in FIG. FIG. 4 is a partial cross-sectional view taken along the arrow Z in FIG. 3, and a drawn portion surrounded by a dotted line represents a VV partial cross-section in FIG. 6. It is the principal part enlarged view which expanded the principal part in FIG. It is a whole top view which shows the outline of the conventional slitter apparatus. It is sectional drawing which shows the principal part in the XX cross section of FIG.

Explanation of symbols

10 ... Slitting device 12 ... Slit part 14 ... Winding shaft
14d ... Tip insertion groove 16 ... Driving unit 18 ... Winding shaft holding unit 20 ... Separator / individual holding device 22 ... Cutting device 24 ... Coil end holding device 26 ... Moving carriage 28 ... Coil transfer device 40 ... Coil side facing part
40a ... loose insertion hole 42 ... tip pushing member 42a ... engaging claw 44 ... driving device A ... pushing device C ... coil S1 ... wide strip material S2 ... narrow strip material

  The present invention will be described in detail below with reference to the drawings. FIG.1 and FIG.2 is the whole top view and whole front view which show the outline of the slitter apparatus 10 equipped with the extrusion apparatus A of one Example based on this invention. The slitter device 10 slits the wide strip material S1 and cuts it into a plurality of narrow strip materials S2, and winds them around the winding shaft 14 to form the coil C of the narrow strip material S2. . As shown in these drawings, the slitter device 10 of this embodiment is roughly composed of a slit portion 12, a winding shaft 14, a driving portion 16 of the winding shaft 14, a winding shaft holding portion 18, and a separator / individual pressing device 20. , A cutting device 22, a coil end holding device 24, a moving carriage 26, a coil transfer device 28, an extrusion device A, and the like.

  The slit portion 12 has a plurality of slit blades 12a, 12a,... Arranged in parallel at a predetermined interval, and a wide strip material S1 fed out in a longitudinal direction from a strip winding drum (not shown). Then, slitting (cutting) is performed at predetermined intervals in the width direction by the slit blades 12a, 12a ... to form a plurality of narrow strips S2 ....

  The winding shaft 14 is for winding a plurality of narrow strips S2 formed by the slit portion 12 at the same time to form coils C, and is generally long as shown in FIGS. A winding shaft main body 14a having a substantially rectangular parallelepiped shape, a diameter expanding / contracting member 14b having a substantially crescent-shaped cross section, and a cam mechanism portion 14c for expanding / contracting the diameter expanding / contracting member 14b. Among them, a plurality of diameter expanding / contracting members 14b (four in the illustrated embodiment) are equally arranged around the axis of the take-up shaft main body 14a, and are arranged so as to be movable in the radial direction by the cam mechanism portion 14c. .

  As shown in FIGS. 3, 5, and 6, the cam mechanism portion 14 c includes a reciprocating block 141 that moves in the radial direction at the four corners of the take-up shaft main body 14 a, a reciprocating slider 142 that drives the expansion and contracting block 141, and a reciprocating motion. The drive shaft 143 is configured to drive the slider 142 forward and backward in the axial direction.

  The reciprocating slider 142 is a long member that slides in the axial direction at the groove bottom of the slide groove 15 that is recessed in the longitudinal direction of the four corner chamfered portions of the winding shaft body 14a. The expansion / contraction block 141 protrudes / immerses in the radial direction (see FIGS. 5 and 6).

  The drive shaft 143 is a shaft that is inserted in the center through hole 17 of the winding shaft main body 14a so as to be reciprocally movable, and one end of a reciprocating slider 142 is attached to an end of the drive shaft 143 via an engagement block 144 ( (See FIG. 6). A drive device (not shown) is attached to the drive shaft 143 so that the drive shaft 143 reciprocates in the central through hole 17 by the drive device.

  Further, a tip insertion groove 14d extending the entire length in the longitudinal direction of the outer surface of the winding shaft 14 is formed at a predetermined position between adjacent diameter expanding / contracting members 14b of the winding shaft 14 in a reduced diameter state (in the case of the example shown in FIG. One that can handle left-handed winding and right-handed winding is formed in each of two places.

  A cylindrical shaft end support block 14e serving as a base end portion of the take-up shaft 14 is attached to the base end side (that is, the drive unit 16 side) of the take-up shaft main body 14a. An accommodation groove 14f communicating with the tip insertion groove 14d is formed at a position on the outer peripheral surface of the block 14e on the axis line of the tip insertion groove 14d.

  The drive unit 16 is attached to the base end side of the take-up shaft 14, and rotates the take-up shaft 14 in the take-up direction (right-handed or left-handed can be freely set). It is configured.

  The take-up shaft holding portion 18 can be rotated from below on the free end side of the take-up shaft 14 by an arc-shaped holding hand 18b provided at the tip of a swinging shaft holding arm 18a pivotably attached. The winding shaft holding arm 18a so that the coil C group consisting of a plurality of narrow strips S2 of a predetermined length wound around the winding shaft 14 can be removed from the winding shaft 14. Is arranged so as to be detachable from the free end of the winding shaft 14.

  The separator / individual presser 20 is configured to prevent interference between adjacent narrow strips S2 when winding a plurality of narrow strips S2 around the winding shaft 14 so that the strips can be accurately wound. Thus, a plurality of separate rings 20a that enter the slits between the plurality of narrow strip materials S2 and separate each narrow strip material S2 from each other, and are disposed between each of the separate rings 20a, A belt-shaped body guide ring 20b that guides while pressing the narrow strip material S2 that is rolled onto the winding shaft 14 while rolling on the surface of the narrow strip material S2. In this embodiment, the separator / individual pressing device 20 is installed on a mount 20c provided on the travel path of the narrow strip S2 (see FIG. 1). 30 may be installed.

  The cutting device 22 is disposed between the slit portion 12 and the winding shaft 14 on the travel path of the wide strip material S1 and the narrow strip material S2, and the entire narrow strip material S2 wound around the winding shaft 14 is disposed. Is cut at a predetermined length, and has a pair of upper and lower cutting blades (not shown) for the narrow strip material S2.

  The coil end holding device 24 extends in the axial direction of the take-up shaft 14 above the take-up shaft 14 and the coil transfer device 28, and reciprocates on a beam 30 fixed to the columns 29 on both sides. The coil end collective pressing mechanism 24a, the coil end individual pressing mechanism 24b shown in FIG. 3 and an elevating mechanism portion 24c that holds them up and down integrally can be provided.

  The coil end batch pressing mechanism 24a is configured to collectively press the ends of all the coils C when removing all the coils C from the winding shaft 14 and placing them on the moving carriage 26 and moving them to the coil transfer device 28. The coil end individual pressing mechanism 24b is for individually pressing the end portions of the coils C when the coils C transferred to the coil transfer device 28 are bound by the binding band. .

  The movable carriage 26 is for transferring all the coils C removed from the take-up shaft 14 to the coil transfer device 28, and from below the take-up shaft 14 to a coil transfer shaft 28c of the coil transfer device 28 described later. Along the pair of rails 32 laid on both sides of the pit P in the width direction along the axial direction of the take-up shaft 14, the pits P are laid so as to have a rectangular planar shape up to the corresponding position. It is configured to reciprocate.

  As shown in FIG. 2, the moving carriage 26 includes a moving carriage main body 26a having moving wheels 34, an elevating mounting table 26b that can be moved up and down on the moving carriage main body 26a, and a mounting that drives the elevating mounting table 26b. And a stand lifting cylinder 26c. In addition, in order to stabilize the lifted state of the coil C, a V-shaped fixed mounting surface 26d is formed on the upper surface of the elevating mounting table 26b as shown in FIG.

  The coil transfer device 28 is for receiving all the coils C extracted from the winding shaft 14 from the movable carriage 5 for bundling work or for giving them to the next process, as shown in FIGS. A base 28a, a rotating part 28b rotatably provided on the upper part of the base 28a, a coil transfer shaft 28c projecting horizontally from the rotating part 28b, and a rotating part. It is comprised with the drive part 28d which reciprocatesly rotates 28b. Here, the drive unit 28d is composed of a motor and a gear structure, and the rotation unit 28b is divided into a coil binding position where the coil transfer shaft 28c is arranged on the same axis as the winding shaft 14, and the coil transfer shaft 28c. The coil 14 is reciprocally rotated with respect to the coil extraction position where the axis of the pickup shaft 14 is substantially orthogonal.

  When the entire coil C of the narrow strip S2 wound around the winding shaft 14 is transferred to the coil transfer device 28 side, the extrusion device A is released from the state of being bitten by the winding shaft 14 due to the reduced diameter. In order to smoothly feed the distal end portion of the coil C from the distal end insertion groove 14d of the winding shaft 14, the coil C is generally composed of a coil side facing portion 40, a distal end pushing member 42, and a driving device 44 (see FIG. 3). ).

  The coil side surface facing portion 40 is a plate-like member that is brought into contact with or pressed against the side surface of the coil C wound around the winding shaft 14, and is wound around one end portion (lower portion in the illustrated embodiment). A loose insertion hole 40a that is inserted with a slight gap is formed so that the take-up shaft 14 can reciprocate, and on the back side of the other end (upper part in the illustrated embodiment), A shaft 44a of the drive device 44 is attached via a slide portion 52 described later.

  As shown in FIG. 4, the loose insertion hole 40 a is expanded in two steps toward the front side facing the coil C wound up by the winding shaft 14, and the back of the expanded diameter portion A fixed member mounting portion whose portion is a tip push-out member accommodating portion 40b that is concentrically circled with the loose insertion hole 40a, and whose front side portion is similarly concentric with the loose insertion circle hole 40a. 40c.

The tip extruding member 42 rotates in the tip extruding member accommodating portion 40b along the loose insertion hole 40a, and is formed in a ring shape so as to surround the outer periphery of the winding shaft 14 in this embodiment. This member is attached to be freely rotatable along the inner peripheral surface of the loose insertion circular hole 40a. Specifically, as shown in FIG. 4, the tip push-out member 42 is housed in a tip push-out member housing portion 40b provided on the inner peripheral surface of the loose insertion circular hole 40a, and the loose insertion circular hole 40a. A ring-shaped fixing member 48 is attached to a fixing member mounting portion 40c provided on the front side of the coil, and the fixing member 46 is fixed to the coil side surface facing portion 40 with a bolt 48, whereby the coil side surface facing portion 40 is loosely inserted. It is rotatably mounted in the circular hole 40a. Of course, the tip extruding member 42 is not limited to this, but is not shown in the figure, but a dovetail groove may be formed in the tip extruding member accommodating portion 40b so as to slide in the dovetail groove. By configuring the tip extruding member 42 with the ring-shaped member as described above, the structure of the extrusion apparatus A can be simplified and excellent in productivity and durability, and the tip extruding member 42 can be used. The product itself is excellent in mechanical strength.

  An engaging claw 42a is provided on the inner peripheral surface of the tip push-out member 42 so as to be accommodated in the accommodating groove 14f provided on the outer peripheral surface of the proximal end portion of the winding shaft 14 during coil winding. Yes.

  The drive device 44 is for moving the coil side facing portion 40 to which the tip pushing member 42 is attached in the axial direction of the take-up shaft 14, and on a pair of guides 50 provided on the drive portion 16. The shaft 44a moves forward and backward, and the hydraulic cylinder 44b moves the shaft 44a forward and backward in the axial direction of the winding shaft 14 based on a predetermined signal from the moving carriage 26.

  Here, the shaft 44 a of the driving device 44 and the coil side surface facing portion 40 are connected to each other via a slide portion 52 so as to be capable of relative displacement (up and down). As shown in FIG. 5, the slide portion 52 includes a shaft-side plate-like portion 54 that is integrally attached to the tip of the shaft 44 a by using a joining method such as welding, and a bolt on the back upper end portion of the coil side surface facing portion 40. Are provided on the surface side of the shaft-side plate-like portion 54, and are provided on the surface side of the shaft-side plate-like portion 54. A pair of upper and lower sliders 60 that engage with the rail 58 and slide on the guide rail 58, and a shaft 44a and the coil side face portion 40 are connected and fixed via the shaft side plate portion 54 and the coil side plate portion 56. It is comprised with the member 62. FIG.

  The connecting member 62 includes a lower pedestal 62a that extends horizontally on the lower back side of the coil side plate-like portion 56, a rod 62b that is erected on the upper surface of the lower pedestal 62a, and a shaft-side plate-like portion 54. The rod 62b is inserted into the rod 62b by being inserted in the horizontal direction on the lower back side of the rod and threaded into the rod locking portion 62c and the rod locking portion 62c on the upper surface side of the rod locking portion 62c. The nut 62d is engaged with the portion 62c, and the compression spring 62e is inserted between the rod 62b and disposed between the lower pedestal 62a and the rod engagement portion 62c.

A proximity switch 64 provided with a rod 64a that protrudes and sinks on the surface on the side in contact with the coil C is attached to the coil side surface facing portion 40 of the extrusion apparatus A of the present embodiment configured as described above. When the coil side face portion 40 abuts the side face of the coil C and the rod 64a is immersed in the surface of the coil side face portion 40 and the proximity switch 48 is turned on, the moving carriage 26 is synchronized with the movement of the coil side face portion 40. Is set to start running.

  In addition to the above-described components, the slitter device 10 of the present embodiment is equipped with various sensors and a drive system (not shown) so as to execute predetermined operations.

  Next, the operation of the slitter device 10 configured as described above will be described.

  The wide band material S1 fed out from a belt winding drum (not shown) is slit into a plurality of strips in the width direction by the slit portion 12 to become a narrow band material S2,... After the tip is attached, it will be wound up. This will be described in detail as follows.

  That is, in the state where the expansion / contraction block 141 is immersed in the slide groove 15, in other words, in the state where the winding shaft 14 is reduced in diameter and the distal end insertion groove 14d is fully opened, the distal end portion of the entire narrow strip S2 is inserted into the distal end. Inserted into the groove 14d, the reciprocating slider 142 is operated in this state and moved in the direction indicated by the solid line arrow in FIG. Then, the inclined surface of the inclined uneven portion of the reciprocating slider 142 moves the expansion / contraction block 141 in the protruding direction. As a result, the diameter-expanding member 14b is extruded in the protruding direction (that is, the winding shaft 14 is expanded), and a side wall is formed by the back surface of the diameter-expanding member 14b and the surface of the expansion / contraction block 141. In the distal end insertion groove 14d, the distal end portion of the narrow band material S2 inserted into the distal end insertion groove 14d is engaged between the diameter-expanding member 14b and the expansion / contraction block 141, and is firmly in the distal end insertion groove 14d. Fixed to.

  Here, in the above process, the coil side facing portion 40 of the extrusion apparatus A is disposed at the proximal end portion of the winding shaft 14, and the engaging claw 42a of the tip pushing member 42 is the end support block 14e. Is housed in a housing groove 14f carved on the outer peripheral surface of the housing.

  When the biting of the leading end of the narrow strip material S2 is completed as described above, the winding shaft 14 is rotated to wind up the narrow strip material S2, and the coils C are formed in a plurality of rows. However, at this time, since the separator ring 20a in the separator / individual pressing device 20 enters the slits between the slits of the narrow strip material S2, the adjacent narrow strip material during the winding operation S2 mutual interference is prevented and winding is performed accurately.

  When the narrow strip material S2 is wound on the winding shaft 14 by a predetermined length, the cutting device 22 is activated to cut the narrow strip material S2 at a predetermined position, and the cut end portion of the narrow strip material S2 covers the surface of the coil C. The winding shaft 14 stops when it is further wound until it comes to the front of the coil end batch pressing mechanism 24a of the coil end holding device 24 that presses the coil C inward in the radial direction. During this time, since the engaging claw 42a is always accommodated in the receiving groove 14f of the winding shaft 14, when the winding shaft 14 rotates, the engaging claw 42a is caught on the side wall of the receiving groove 14f, and the winding shaft 14 With the rotation of 14, the tip pushing member 42 rotates together. Further, as described above, the accommodation groove 14f is provided on the axis of the tip insertion groove 14d. Therefore, regardless of the position of the tip insertion groove 14d, the engaging claw 42a of the tip push-out member 42 is always placed on the axis of the tip insertion groove 14d.

  Subsequently, after the diameter of the winding shaft 14 is reduced, the lifting / lowering table 26b of the movable carriage 26 rises and the lifting / lowering table 26b slightly lifts all the coils C ... from below, or the lifting / lowering table 26b is entirely lifted. After raising to a height where it abuts on the coils C, the winding shaft 14 is reduced in diameter. As a result, all the coils C... Can be removed from the winding shaft 14. Here, the diameter reduction of the winding shaft 14 will be described in detail. The reciprocating slider 142 is operated and moved in the direction indicated by the wavy arrow in FIG. Then, the expansion / contraction block 141 moves in the immersion direction along the inclined surface of the inclined uneven portion of the reciprocating slider 142. As a result, the diameter-expanding member 14b is pressed and urged in the direction of diameter reduction by the elastic force of the compression spring 14b1, the diameter of the winding shaft 14 is reduced, and the tip insertion groove 14d is fully opened to form the coil C. The biting of the tip portion of the narrow band material S2 to be released is released. Further, the diameter of the winding shaft 14 is reduced in this way and the tip insertion groove 14d is fully opened, so that the internal spaces of the tip insertion groove 14d and the accommodation groove 14f are in communication with each other.

  Thereafter, the extrusion device A is operated so that the coil side surface facing portion 40 comes into contact with the side surface of the coil C on the proximal end side of the winding shaft 14, and the coil C. , Toward the coil transfer device 28). At that time, the distal end portion of the narrow band material S2 which has been released from the engagement in the distal end insertion groove 14d is also pressed by the engagement claw 42a of the extrusion device A. At the same time, the proximity switch 48 is turned on when the coil side surface contact 40 comes into close contact with the side surface of the coil C, and the mobile carriage 26 receiving this signal in synchronization with the movement of the coil side surface facing portion 40 moves the coil. While starting to run in the direction of the mounting device 28, the coil end holding device 24 also starts to move in synchronization with the traveling of the moving carriage 26. That is, all the coils C are pressed by the extrusion device A and are pulled out from the winding shaft 14 while being sandwiched between the moving carriage 26 and the coil end holding device 24.

  Then, when all the coils C are removed from the winding shaft 14 and the coil side surface facing portion 40 reaches the tip of the tip insertion groove 14d disposed on the free end side of the winding shaft 14 (that is, the tip insertion groove). 14 d), the drive device 44 immediately reverses and the coil side face portion 40 is pulled back to the proximal end side of the take-up shaft 14, and the engaging claw 42 a of the tip pushing member 42 is accommodated. It is accommodated in the groove 14f. For this reason, the winding shaft 14 from which all the coils C are removed can immediately wind a new narrow strip material S2. On the other hand, the moving carriage 26 and the coil end holding device 24 synchronized therewith further move forward, and all the coils C ... extracted from the winding shaft 14 are transferred and inserted into the coil transfer shaft 28c of the coil transfer device 28. To do. Then, after the bundling work of the coils C is performed in this state, the coils C are sent to the next process.

Moreover, in the extrusion apparatus A attached to the slitter apparatus 10 of the present embodiment, the shaft 44a and the coil side surface facing part 40 are connected via the slider part 52 so as to be capable of relative displacement (elevation) as described above. The position of the tip push-out member accommodating portion ( free fitting circular hole) 40b can be finely adjusted according to the height position of the take-off shaft 14, and more specifically, the tip push-out member accommodating portion 40b and the take-up shaft 14 can be adjusted. Can be prevented from interfering with each other and taking damage.

  In the above-described embodiment, the slitter device 10 includes the slit portion 12, the winding shaft 14, the driving portion 16 of the winding shaft 14, the winding shaft holding portion 18, the separator / individual pressing device 20, the cutting device 22, and the coil. Although the case where it was comprised with the edge part holding | maintenance apparatus 24, the moving trolley | bogie 26, the coil transfer apparatus 28, the extrusion apparatus A, etc. was shown, this invention is not limited to the said Example. Therefore, the moving carriage 26 and the coil transfer device 28 may not be provided, that is, the coil C wound up by the winding shaft 14 may be bundled on the winding shaft 14.

Claims (2)

A plurality of narrow strips obtained by slitting a wide strip fed in the longitudinal direction in the width direction are bitten into a distal end insertion groove provided in the longitudinal direction of the winding shaft, and the winding shaft When the coil formed on the take-up shaft is removed from the take-up shaft, the front end of the narrow band material that has been released from the engagement of the front end insertion groove is pushed out from the front end insertion groove. An extrusion device attached to a slitter device for
A loose insertion circular hole through which the winding shaft is inserted is formed at the end, and a coil side surface facing portion facing the side surface of the coil wound around the winding shaft when the coil is removed, and
It moves along the inner periphery of the loose insertion hole, and is housed in a housing groove carved in the proximal end portion of the winding shaft so as to communicate with the tip insertion groove when winding the coil, and A tip extruding member having an engaging claw that is inserted into the tip insertion groove and is pushed out to a position beyond the tip insertion groove by movement in the tip direction of the winding shaft of the coil side facing portion;
A drive device for moving the coil side surface portion provided with the tip pushing member forward and backward in the axial direction of the winding shaft ;
At the time of winding the coil, the engaging claw of the tip push-out member is caught in the receiving groove of the take-up shaft so that the tip push-out member rotates together with the take-up shaft as the take-up shaft rotates. An extrusion device attached to a slitter device, characterized in that it is configured. The extrusion device attached to the slitter device according to claim 1 , wherein the tip pushing member is a ring-shaped member rotatably disposed in the loose insertion circular hole.

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