JP4421994B2 - Clamp mechanism of slitter device - Google Patents

Description

  The present invention relates to a clamp mechanism for fixing a rotary blade mechanism such as a rotary blade, a spacer, and a collar attached to a rotary shaft of a slitter device.

  An example of a clamping mechanism of a slitter device is disclosed in Japanese Utility Model Laid-Open No. 61-184613 (Patent Document 1) (see FIGS. 12 to 15).

  In this prior art, a ring member (4) is attached to the shaft end of the rotary shaft (1) on which the rotary blade mechanism (K) (consisting of a collar (8), slitter (18), spacer (19), etc.) is mounted. ) And the ring member (4) is pressed by a pressing mechanism such as a hydraulic cylinder (9) via a pressing piece (10) to clamp the rotary blade mechanism (K).

  When replacing the rotary blade mechanism (K) in the prior art (blade replacement work), the pressing force by the hydraulic cylinder (9) is released and the moving machine frame (17) is moved to rotate the rotary shaft (1). The small-diameter cylindrical shaft portion (1a) is removed from the moving machine frame (17). Then, the piston rod (9a) is retracted by the restoring force of the spring (11), and the pressing piece (10) fixed to the rod (9a) is a long hole (3) formed in the small diameter cylindrical shaft portion (1a). ) And move away from the receiving groove (7) of the ring member (4).

Thereafter, the ring member (4) is manually rotated at an appropriate angle in the circumferential direction so that the extraction groove (6) is aligned with the pressing piece (10), and the extraction groove (6 ), The ring member (4) is removed from the small-diameter cylindrical shaft portion (1a). Thereby, replacement | exchange (blade replacement | exchange work) of a rotary blade mechanism (K) is attained.
Japanese Utility Model Sho 61-184613

  In the prior art, as a preparation stage for performing the blade replacement work, it is necessary to manually remove and attach the ring member (4) as described above, but the heavy ring member (4) is manually attached and detached. Is a heavy labor for workers. Therefore, a considerable amount of time is required in the preparation stage of the blade replacement work, and there is a problem in that the movement of the slitter device stops during that time, and the production efficiency decreases.

  Therefore, an object of the present invention is to provide a clamping mechanism of a slitter device that can quickly perform blade replacement work by automatic control.

  According to the first aspect of the present invention, “a rotary blade mechanism (K) that is mounted on a rotating shaft (22) of a slitter device (20) and slits a wide metal strip into a plurality of narrow metal strips is fixed. A flange mechanism (44) that is attached to the shaft end (36b) of the rotating shaft (22) and presses the rotating blade mechanism (K) in its axial direction, and a rotating blade mechanism (K) When pressing the flange (44), the pressing force is applied to the flange (44), and when the rotary blade mechanism (K) is replaced, the pressing mechanism (46) and the rotating shaft (22) are rotatably supported and rotated. When replacing the blade mechanism (K), a movable bearing (72) that slides in the axial direction of the rotating shaft (22) and disengages from the rotating shaft (22), and a movable bearing (72) are provided on the movable bearing (72). And a flange loading / unloading device (80) for gripping the flange (44) when sliding.

  According to the present invention, since the flange (44) is configured to be gripped when the movable bearing (72) is slid, when the movable bearing (72) is slid when the rotary blade mechanism (K) is replaced, the flange (44) separates from the rotating shaft (22) together with the movable bearing (72).

  The invention described in claim 2 is another embodiment, which is “a rotary blade mechanism that is mounted on a rotating shaft (22) of a slitter device (20) and slits a wide metal strip into a plurality of narrow metal strips. A clamp mechanism for fixing (K), which is mounted on the shaft end (36b) of the rotary shaft (22) and rotates with a flange (44) that presses the rotary blade mechanism (K) in its axial direction. When the blade mechanism (K) is fixed, the pressing force is applied to the flange (44), and when the rotary blade mechanism (K) is replaced, the pressing mechanism (46) and the rotating shaft (22) can be rotated. A movable bearing (72) that slides in the axial direction of the rotating shaft (22) and separates from the rotating shaft (22) and a flange ( And a flange loading / unloading device (80) that slides in the axial direction of the rotating shaft (22) and separates the flange (44) from the rotating shaft (22).

  According to this invention, after the movable bearing (72) is detached from the rotating shaft (22), the flange insertion / removal device (80) grips the flange (44) and slides in the axial direction of the rotating shaft (22). As a result, the flange (44) is detached from the rotating shaft (22).

  The invention described in claim 3 is a limited version of the invention described in claim 1 or 2; “a clamp groove (44a) extending in the circumferential direction is formed on the outer peripheral surface of the flange (44). The flange loading / unloading device (80) includes a pressing member (80b) that fits into the clamp groove (44a) when the flange (44) is gripped ".

  According to the present invention, the flange loading / unloading device (80) grips the flange (44) in a state in which the pressing member (80b) is fitted in the clamp groove (44a). Sometimes the flange loading / unloading device (80) and the flange (44) do not come off.

  According to the first aspect of the present invention, when the movable bearing is slid, the flange slides together with the movable bearing and is detached from the rotating shaft. Therefore, after the movable bearing is detached from the rotating shaft as in the prior art, the flange is removed. There is no need to remove the blade separately, and it is possible to immediately start blade replacement work.

  According to the second aspect of the present invention, after the movable bearing is slid, the flange is detached from the rotary shaft by the flange insertion / removal means, so that it is not necessary for the operator to manually remove the flange as in the prior art. Can be significantly reduced.

  According to the third aspect of the present invention, since the flange loading / unloading device does not come off the flange when the movable bearing slides, the flange and the movable bearing can be reliably detached from the rotating shaft.

  Hereinafter, the present invention will be described in detail according to illustrated embodiments. As shown in FIGS. 1 and 2, the slitter device (20) according to the present invention includes a pair of upper and lower rotating shafts (22) ((22a) (22b)), a fixed support portion (24), and a movable support portion ( 26), a slide mechanism (28), a drive mechanism (30), and a gantry (32). 1 shows a state in which the rotating shaft (22) is supported by both the fixed support portion (24) and the movable support portion (26), and FIG. 2 shows the movable support portion (26). ) Is disengaged from the rotation shaft (22) and slid in the direction of the paper surface to show that the rotation shaft (22) is supported in a cantilevered manner by the fixed support portion (24) (Indicated by a circled + sign).

  Each rotary shaft (22) ((22a) (22b)) has a substantially cylindrical rotary blade mechanism mounting portion (34) to which the rotary blade mechanism (K) is mounted. A journal (36) ((36a) (36b)) having a diameter smaller than that of the blade mechanism mounting portion (34) is provided.

  A flange (38) having a diameter larger than that of the rotary blade mechanism mounting portion (34) is provided at a boundary portion between the journal (36a) on the side supported by the fixed support portion (24) and the rotary blade mechanism mounting portion (34). The rotary blade mechanism (K) mounted on the rotary blade mechanism mounting portion (34) is pressed by the flange (38).

  On the other hand, as shown in FIGS. 3 to 4, the journal (36b) on the side supported by the movable support portion (26) has a step shape (in this embodiment, three steps) as its outer diameter goes toward the shaft end. The diameter of the journal (36b) is reduced, and a pressing mechanism accommodating space (40) that opens to the shaft end surface is formed in the central portion of the journal (36b).

  The long side direction of the step (36b1) at the center of the journal (36b) extends along the axial direction of the rotating shaft (22), and the outer surface of the journal (36b) and the pressing mechanism accommodating space (40) A plurality of (four in this embodiment) long holes (42) are formed. Note that the position of the end of each elongated hole (42) on the rotary blade mechanism mounting portion (34) side of the journal (36b) is such that a claw member (56), which will be described later, can contact the end surface of the flange (44). It is set so as to coincide with the boundary portion between the large diameter stepped portion (36b2) and the central stepped portion (36b1), or to be on the large diameter stepped portion (36b2) side from the boundary portion. (In this embodiment, the latter is set).

  A flange (44) is mounted on the large-diameter stepped portion (36b2) of the journal (36b), and a pressing mechanism (46) is accommodated in the pressing mechanism accommodating space (40). The oil supply mechanism (48) is attached to the small-diameter side stepped portion (36b3) (see FIG. 4).

  The flange (44) is a ring-shaped member for preventing the rotary blade mechanism (K) from moving toward the journal (36b), and its outer diameter (r1) is as shown in FIG. It is set to be larger than the outer diameter (R1) of the rotary blade mechanism mounting part (34), and its inner diameter (r2) is set to be approximately equal to the outer diameter (R2) of the large diameter stepped part (36b2) to be mounted The wall thickness (t) is set slightly larger than the axial length (L) of the large-diameter stepped portion (36b2).

  On the outer peripheral surface of the flange (44), a clamp groove (44a) is formed over the entire circumference, and a plurality (four in this embodiment) of sampling are provided on the inner peripheral surface of the flange (44). Grooves (44b) are formed at equiangular intervals according to the mounting position of a claw member (56) described later. In addition, a plurality of pairs of left and right guide members (50) (4 sets in this embodiment) are equiangular along the inner peripheral surface of the end surface of the flange (44) on the side not in contact with the rotary blade mechanism (K). It is provided at intervals. In the present embodiment, each pair of guide members (50) and each extraction groove (44b) are alternately arranged in a state of being shifted by 45 degrees in the circumferential direction.

  Each pair of guide members (50) is for positioning a contact position of a claw member (56) (described later) with respect to the flange (44) when the rotary blade mechanism (K) is clamped. The interval between the members (50) is set to be slightly larger than the thickness of the claw member (56), and when the rotary blade mechanism (K) is clamped, each claw member (56) has a pair of guide members ( 50) can be fitted into the gap between. When each claw member (56) is fitted in a gap between each pair of guide members (50), each claw member (56) and each extraction groove (44b) are 45 degrees in the circumferential direction. The positional relationship is shifted by one.

  As can be seen from FIGS. 3 to 4, the pressing mechanism (46) is composed of a piston member (52) and a cylinder member (54).

  The piston member (52) includes an angular shaft portion (52a) having a substantially rectangular cross section, clamp release means (52b) provided at one axial end portion of the angular shaft portion (52a), and an angular shaft portion (52a). A substantially cylindrical piston head (52c) provided at the other end in the axial direction, and a coil spring (53) is extendable in the axial direction of the piston member (52) in the clamp release means (52b). Is provided.

  On the four outer surfaces of the square shaft portion (52a), a claw member (56) as a pressing force transmission mechanism for transmitting the pressing force from the pressing mechanism (46) to the end surface of the flange (44) is a fastening member (such as a bolt). 58) (actually, the integral part of the square shaft portion (52a), the clamp release means (52b) and the piston head (52c) constituting the piston member (52) is the pressing mechanism housing space. After being accommodated in (40), the claw member (56) is inserted into the long hole (42), and the claw member (56) is bolted to the square shaft portion (52a).

  Here, the claw member (56) is a rectangular flat plate-like member, and a surface (hereinafter referred to as an upper surface) opposite to a surface (hereinafter referred to as a lower surface) in contact with the square shaft portion (52a) is stepped. It is formed in a shape. A sensor (92), which will be described later, detects the stepped portion so that the clamping state by the pressing mechanism (46) can be determined.

  The length between the upper and lower surfaces of the claw member (56) is such that when the claw member (56) is fixed to the square shaft portion (52a), the upper surface projects from the long hole (42), and The length is set to be shorter than the radial length of the extraction groove (44b) of the flange (44) (therefore, the extraction groove of the flange (44) mounted on the rotating shaft (22) ( If the positions of 44b) and the claw member (56) are matched, the flange (44) can slide along the axial direction of the rotating shaft (22) without contacting the claw member (56).

  The length of the claw member (56) (the length in the left-right direction in FIG. 4) is set to be shorter than the length in the longitudinal direction of the long hole (42). A gap is formed in the axial direction between the member (56). Therefore, the piston member (52) housed in the pressing mechanism housing space (40) can slide in the front-rear direction by this gap.

  The cylinder member (54) is a cylindrical member that is open at one end and closed at the other end, and the piston head (52c) is slidably accommodated in a piston head accommodation hole (54a) formed therein. Has been. An internal closed space formed by the piston head accommodation hole (54a) and the piston head (52c) is a pressure oil chamber (60) to which pressure oil is supplied from an oil supply mechanism (48) described later (FIG. 4). reference).

  In the state where the pressure oil is supplied to the pressure oil chamber (60), the piston member (52) is pressed toward the flange (44) as shown by the arrow in FIG. The pressing force is transmitted to the flange (44) through the claw member (56) as a pressing force transmission mechanism (at this time, the coil spring (53) constituting the clamp releasing means (52b) is in a compressed state. Yes.) In other words, the rotary blade mechanism (K) is held between the flange (38) on the fixed support part (24) side and the flange (44) on the movable support part (26) side, and its position is securely fixed. become.

  The oil supply mechanism (48) is for guiding the pressure oil from a pressure oil supply source (not shown) into the pressure oil chamber (60), and a housing for housing the rotary joint (62) and the rotary joint (62). (64) (see FIG. 4).

  The rotary joint (62) includes a pressure oil chamber (60) provided in a pressing mechanism (46) that rotates together with the rotating shaft (22), and a pressure oil supply hose (84) that is a non-rotating body (described later). The pressure oil supplied from a pressure oil supply source (not shown) is supplied into the pressure oil chamber (60) through the hose (84) and the rotary joint (62). .

  The housing (64) is a cylindrical member that is open at one end and closed at the other end, and its open end (left side in FIG. 4) is in the pressing mechanism housing space (40) of the journal (36b). It is screwed in. A bearing (66) is provided on the closing side end face of the housing (64), and a connector (62a) of the rotary joint (62) is rotatably attached to the bearing (66).

  The fixed support portion (24) is erected on one end portion (left side in FIG. 1) of the upper surface of the gantry (32) so that one shaft end portion (journal (36a)) of each rotating shaft (22) can rotate. A pair of upper and lower fixed bearings (68) ((68a) (68b)) that rotatably supports the journal (36a) of each rotating shaft (22) and above the upper fixed bearing (68a) And a fixed bearing inter-shaft position adjusting mechanism (70) for adjusting the vertical inter-axis position of the fixed bearing (68a).

  The movable support portion (26) is erected on the other end portion of the upper surface of the gantry (32) via the slide mechanism (28) so that the other shaft end portion of each rotating shaft (22) (the journal (36b) can be rotated). A pair of upper and lower movable bearings (72) ((72a) (72b)) and an upper movable bearing (72a) provided above, and the vertical position of the movable bearing (72a) in the vertical direction A movable bearing inter-shaft position adjusting mechanism (74) for adjusting the angle.

  Each movable bearing (72) has a bearing body (76) in which a journal housing space (76a) is formed. The bearing body (76) is provided with a pair of left and right bearings (78) facing the journal housing space (76a), and the central stepped portion (36b1) of the journal (36b) is provided through the bearing (78). ) Is rotatably supported (see FIG. 4).

  On the fixed support portion (24) side of the bearing body (76), a flange loading / unloading device (80) is provided so as to surround the flange (44) (see FIG. 5).

  The flange loading / unloading device (80) is for automatically loading / unloading the flange (44) to / from the journal (36b) of the rotating shaft (22) when replacing the rotary blade mechanism (K). 44) A plurality (three in this embodiment) of air cylinders (80a) projecting and immersing in the radial direction and the tip of the cylinder rod of each air cylinder (80a). 44) having a pressing member (80b) that fits into the clamp groove (44a) of the flange (44) when pressed in the radial direction and presses and grips the flange (44) in the radial direction.

  The three air cylinders (80a) are arranged so as to surround the periphery of the flange (44) at equal angular intervals. As the material of the pressing member (80b), rubber having a high coefficient of friction with the flange (44) is preferably used.

  On the other hand, an auto coupler (82) is attached to the opposite end (rear end) of the bearing body (76). The auto coupler (82) is for detachably connecting a pressure oil supply hose (84) extending from a pressure oil supply source (not shown) and an oil supply mechanism (48). The coupler (82) is detachably connected to the connector (62a) of the rotary joint (62) constituting the oil supply mechanism (48).

  The slide mechanism (28) moves the movable support portion (26) in the front-rear direction (direction substantially parallel to the axial direction of the rotating shaft (22); the left-right direction in FIG. 1) and the left-right direction ( A slide base (28a) and a pair of first rails extending in the front-rear direction (for sliding in a direction orthogonal to the axial direction of the rotation shaft (22); 28b) and a pair of second rails (28c) extending in the left-right direction.

  The first rail (28b) is placed on the upper surface of the slide base (28a), and the movable support portion (26) is slidably installed on the first rail (28b). A telescopic cylinder (86) installed on the slide base (28a) is connected to the movable support portion (26), and the movable support portion (26) is driven by driving the telescopic cylinder (86). The first rail (28b) can be moved in the front-rear direction.

  The second rail (28c) is placed on the other end of the upper surface of the gantry (32), and a slide table (28a) is slidably provided on the second rail (28c). The slide base (28a) is connected to a telescopic cylinder (88) installed on the gantry (32), and the slide base (28a) is connected to the second base by driving the telescopic cylinder (88). The rail (28c) can move in the left-right direction (this means that the movable support portion (26) moves in the left-right direction with respect to the fixed support portion (24)).

  The drive mechanism (30) is for rotating the rotary shaft (22) at a predetermined rotational speed, and includes a drive motor, a speed reducer, and the like (not shown). The drive mechanism (30) is connected to the journal (36a) of each rotating shaft (22) via a connecting arm (90).

  Next, a method for replacing the rotary blade mechanism (K) in the slitter device (20) of the present invention will be described. In order to replace the rotary blade mechanism (K), first, the drive mechanism (30) is stopped to stop the rotation of the rotary shaft (22). Then, the supply of the pressure oil from the pressure oil supply source to the pressure oil chamber (60) is stopped, and the pressure oil in the pressure oil chamber (60) is discharged to the outside. Then, the pressing force of the pressing mechanism (46) that has been pressing the flange (44) through the claw member (56) as the pressing force transmission mechanism is released, and the rotation by the flanges (38) and (44) is released. The clamped state of the blade mechanism (K) is released.

  When the clamping state of the rotary blade mechanism (K) is released, the piston member (52) is pushed back to the opposite side of the flange (44) by the elastic force of the coil spring (53). Then, the claw member (56) moves backward and a gap is formed between the claw member (56) and the guide member (50) (see FIGS. 6 to 7). . Note that whether or not the claw member (56) is retracted due to the release of the clamped state is detected by a sensor (92) provided in the vicinity of the claw member (56).

  Next, the auto coupler (82) is removed from the rotary joint (62). As a result, the movable bearing (72) can be detached from the rotating shaft (22).

  Next, the flange loading / unloading device (80) is operated to project the air cylinder (80a) in the radial direction of the flange (44). Then, the flange (44) is gripped from the circumferential direction by the flange loading / unloading device (80), and the flange (44) and the movable bearing (72) of the movable support portion (26) are integrated. When the flange (44) is gripped by the flange loading / unloading device (80), the pressing member (80b) provided at the tip of the cylinder rod of the air cylinder (80a) is fitted into the clamp groove (44a). (See FIGS. 6-7).

  Next, the rotation shaft (22) is rotated by a predetermined angle (45 degrees in this embodiment) so that the position of the claw member (56) matches the position of the extraction groove (44b) of the flange (44) (FIG. 8 to FIG. 8). 9). As described above, the fitting state between the pair of guide members (50) and the claw member (56) is released, and the claw member (56) and the guide member (50) are rotated when the rotation shaft (22) is rotated. And the flange (44) does not rotate.

  When the position of the claw member (56) matches the position of the extraction groove (44b), the telescopic cylinder (86) is operated to move the movable support part (26) backward (on the opposite side of the fixed support part (24)). Slide in the direction). Then, the movable bearing (72) and the flange (44) move together and move backward, and the movable bearing (72) and the flange (44) are detached from the journal (36b) of the rotating shaft (22) (see FIG. 10). As described above, since the flange (44) is fixed in a state where the pressing member (80b) is fitted in the clamp groove (44a), the movable bearing (72) is attached to the movable bearing (72) when the movable support portion (26) is slid. The provided flange loading / unloading device (80) and the flange (44) do not come off.

  Finally, the telescopic cylinder (88) is operated to slide the movable support portion (26) to the right (backward direction of the paper in FIG. 1), so that the rotary blade mechanism (K) is located behind the rotary shaft (22). Space for replacement is secured and preparation for replacing the rotary blade mechanism (K) is completed.

  When preparation for replacement of the rotary blade mechanism (K) is completed, a known blade replacement device (94) is attached to the journal (36b) to replace the rotary blade mechanism (K) (see FIG. 11).

  When the replacement of the rotary blade mechanism (K) is completed, the rotary blade mechanism (K) is clamped in the reverse procedure. When the clamping of the rotary blade mechanism (K) is completed, the operation of the slitter device (20) can be started again.

  According to this embodiment, the flange support device (80) provided on the movable bearing (72) of the movable support portion (26) grips the flange (44) from its periphery, whereby the movable support portion (26). And the flange (44) are integrated, so that the flange (44) can be detached together when the movable support (26) is detached from the rotating shaft (22). Therefore, when replacing the rotary blade mechanism (K), it is possible to save the operator from having to remove the flange (44) as in the prior art, and the working efficiency can be greatly improved.

  In the above-described embodiment, the bearing body (76) and the flange insertion / removal device (80) constituting the movable bearing (72) are configured to slide integrally, but these are slid separately. You may comprise. In this case, the flange insertion / removal device (80) slides after the movable bearing (72) slides, and the flange (44) can be detached from the rotating shaft (22). It is not necessary to remove (44) manually, and the burden on the operator during blade replacement work can be reduced.

The front view which shows the slitter apparatus (both-end support state) provided with the clamp mechanism concerning this invention Front view showing slitter device (cantilever state) The perspective view which shows a rotating shaft, a flange, and a piston member Partial sectional view showing the clamp mechanism (clamped state) AA line sectional view in FIG. Partial sectional view showing the clamp mechanism (clamp release state) BB sectional view in FIG. Partial sectional view showing a state where the flange loading / unloading device is operated and the rotation shaft is rotated 45 degrees CC sectional view in FIG. Partial sectional view showing a state where the movable support part and the flange are removed. Partial sectional view showing a state where the rotary blade mechanism is replaced The figure which shows the conventional slitter device Partial sectional view in the prior art DD line sectional view in FIG. Perspective view of ring member and cylinder in the prior art

Explanation of symbols

20 Slitter device 22 Rotating shaft 24 Fixed side support portion 26 Movable side support portion 28 Slide mechanism 36 Journal 44 Flange 46 Press mechanism 56 Claw member (pressing force transmission mechanism)

Claims (3)

A clamp mechanism for fixing a rotary blade mechanism that is mounted on a rotating shaft of a slitter device and slits a wide metal strip into a plurality of narrow metal strips,
A flange that is attached to the shaft end of the rotating shaft and presses the rotating blade mechanism in its axial direction;
A pressing mechanism that applies the pressing force to the flange when the rotary blade mechanism is fixed, and releases the pressing force when the rotary blade mechanism is replaced;
A movable bearing that rotatably supports the rotating shaft and slides in the axial direction of the rotating shaft when the rotating blade mechanism is replaced, and is detached from the rotating shaft;
A clamp mechanism comprising a flange loading / unloading device provided on the movable bearing and gripping the flange when the movable bearing slides. A clamp mechanism for fixing a rotary blade mechanism that is mounted on a rotating shaft of a slitter device and slits a wide metal strip into a plurality of narrow metal strips,
A flange that is attached to the shaft end of the rotating shaft and presses the rotating blade mechanism in its axial direction;
A pressing mechanism that applies the pressing force to the flange when the rotary blade mechanism is fixed, and releases the pressing force when the rotary blade mechanism is replaced;
A movable bearing that rotatably supports the rotating shaft and slides in the axial direction of the rotating shaft when the rotating blade mechanism is replaced, and is detached from the rotating shaft;
A clamp mechanism comprising: a flange loading / unloading device that grips the flange after the movable bearing is detached and slides in the axial direction of the rotating shaft to disengage the flange from the rotating shaft. A clamp groove extending in the circumferential direction is formed on the outer peripheral surface of the flange,
The clamp mechanism according to claim 1, wherein the flange loading / unloading device includes a pressing member that fits into the clamp groove when the flange is gripped.

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