JP3204539B2 - Covering band insertion and winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a metal strip such as a stainless steel strip, in which a cover strip, which is a slip sheet, is inserted, overlapped and wound in a coil form, and the cover strip is wound from such a coil. The present invention relates to a device for inserting and winding a covering strip for supplying a metal strip.

[0002]

2. Description of the Related Art Such a device for inserting and winding a covering band is, for example, a tension leveler for performing a shape correction by bending and stretching a metal band along a small-diameter work roll while applying tension to the metal band. It is used in a line, a slitter line for dividing a metal strip into a plurality of pieces in the width direction, and a line for continuously annealing a metal strip. When the metal band is wound into a coil shape, the cover band is used by being wound into the metal band coil layer in order to serve as a cushioning material for preventing generation of scratches due to slippage between coil layers and the like. In such a device for inserting and winding a covering band, when the covering band is inserted into the metal band coil layer and the covering band is separated and wound from the metal band, the covering band is covered with respect to the traveling path of the metal band. The position of the spool, which is the core for winding the band, and the covering band insertion coil in which the covering band is wound in the metal band coil layer can be individually displaced to adjust the relative position. Be composed.

[0003]

In the prior art, the structure of such a device for inserting and winding the covering band is complicated, the equipment is large, and it is necessary to adjust the relative position. There is a problem that the portion to be displaced is heavy, and therefore requires a large-capacity power source and has poor response.

[0004] It is an object of the present invention to reduce the size of the structure, and to position each axial position of a covering band coil such as slip-sheet paper and a covering band insertion coil in which a covering band is inserted in a metal band with respect to the metal band traveling path. It is an object of the present invention to provide a device for inserting and winding up a covering band, which is easy to position relatively.

[0005]

According to the present invention, there is provided a support member for supporting a coated coil at both axial ends thereof,
A holder for rotatably holding the support member, a holding frame in which the holder is movably provided in the axial direction, and a pair of first members for mutually driving the holder in the axial direction on the holding frame; A displacement driving means, a control means for operating each of the first displacement driving means to displace the holding table in the mutually approaching direction, the separating direction and the same direction along the axial direction, and the covering band is superimposed on the metal band. A reel supporting the wound coil insertion coil wound around, a rotation driving means mounted on the holding frame and rotating the reel, an apparatus main body, and a displacement drive of the holding frame in the axial direction with respect to the apparatus main body. And a second displacement driving means.

Further, according to the present invention, the first displacement driving means includes:
A double-acting hydraulic cylinder, and the control means is a pair of spring-centered double-coil type 3 provided for each hydraulic cylinder.
A position solenoid switching valve, a spring offset type two-position solenoid switching valve, a pair of pilot operated check valves provided for each hydraulic cylinder, and a hydraulic pressure source. Hydraulic oil from a source is supplied to the room on the opposite side of the hydraulic cylinder from the coated band coil through the respective 3-position electromagnetic switching valves and the respective 2-position electromagnetic switching valves. In order to return to the tank via the position electromagnetic switching valve and each three-position electromagnetic switching valve and displace the support member in the separating direction, hydraulic oil from a hydraulic source is supplied from each of the three-position electromagnetic switching valves to the two-position electromagnetic switching valve. Supply to the room on the side of the coated band coil of the hydraulic cylinder, and open each check valve in the reverse direction, and supply the hydraulic oil in the room on the opposite side of the coated band coil to each check valve and each three-position electromagnetic switching. Return from valve to tank, support The wood in order to displace in the same direction,
Hydraulic oil from a hydraulic source is supplied from one three-position solenoid-operated directional control valve via one check valve to a room on the opposite side of the cover band coil of one hydraulic cylinder, and the cover band coil of the one hydraulic cylinder is provided. Hydraulic oil in the room on the side of the other hydraulic cylinder is guided to the room on the coil band side of the other hydraulic cylinder through the two-position electromagnetic switching valve, It is characterized by returning to the tank from the other check valve and the other three-position electromagnetic switching valve.

[0007]

According to the present invention, the apparatus main body is installed at a fixed position such as the floor, and the holding frame provided on the apparatus main body can be displaced and driven in the axial direction of the covering band coil by the second displacement driving means. In this way, the supporting members for supporting the covering band coils at both ends in the axial direction are rotatably held on the holding stands, respectively, and the holding stands are moved on the holding frame by the pair of first displacement driving means. It is configured to be able to be driven and adjusted in the axial direction of the coil, so that the holding table, and thus the support member, can be moved toward each other, away from each other and in the same direction as each other.
The operation of the displacement driving means can be controlled. In this way, it is possible to commonly set the positions of the covering band coil and the covering band insertion coil with respect to the traveling path of the metal band.

The first displacement driving means drives the holding table with respect to the holding frame, and the second displacement driving means drives the holding frame with respect to the entire apparatus. Compared to the configuration in which the spool for winding the band and the covering band insertion coil are individually displaced, the configuration can be simplified, the capacity of the first and second displacement driving means can be reduced, and the responsiveness can be improved. It is.

According to the present invention, the first displacement driving means is realized by a double-acting hydraulic cylinder. In order to drive and control the double-acting hydraulic cylinder, a spring-centered double-coil three-position electromagnetic switching valve, a spring The positioning of the holding table can be adjusted by the offset type two-position electromagnetic switching valve and the pilot operated check valve.

[0010]

1 is a simplified perspective view of one embodiment of the present invention, FIG. 2 is a front view of a part of the embodiment, and FIG.
FIG. 4 is a plan view of the embodiment, and FIG. 4 is a partial side view of the embodiment. Referring to these drawings, in a tension leveler line, a metal band 1 made of stainless steel is overlapped with a metal band 1 made of interleaving paper, inserted and wound, and a metal band 1 is removed from the coil. At the same time, the coating strip 2 is wound up as a first coating strip coil 4 or alternatively as a second coating strip coil 5. Covering band 2
The sheath band coil 4 is formed by being wound around a spool 6 which is a straight cylindrical core, and a pair of truncated cone-shaped support members 7 and 8 are partially inserted into both ends of the spool 6 in the axial direction. Then, the spool 6, and thus the covering coil 4, is supported. The support members 7 and 8 are fixed to one ends of the rotating shafts 9 and 10, and each of the pair of holding tables 13 and 1 is supported by bearings 11 and 12.
4 rotatably held. One of the rotating shafts 9 is connected to a motor 15, whereby the rotating shaft 9, and thus the supporting member 7, is rotated for winding the covering band 2, or alternatively, the covering band 2 is connected to the metal band 1 by a braking means 61. When it is inserted while being superimposed on the cover band 2, a braking force for applying tension to the covering band 2 is applied.

Each of the holding tables 13 and 14 has one holding frame 1.
6, the covering strip coil 4 is movable in the axial direction (left and right directions in FIGS. 2 and 3) by guide means 17 and 18. The holding frame 16 has a pair of double-acting hydraulic cylinders 19 and 20 in trunnion mode as first displacement driving means.
The piston rods 21 and 22 are pin-connected to brackets 23 and 24 of the holding tables 13 and 14, respectively. By driving the hydraulic cylinders 19 and 20, the holding tables 13 and 14 can be displaced and driven on the holding frame 16 in the approaching direction, the separating direction and the same direction, respectively. In this way, it is possible to support and displace the narrow band coil 4a as shown in FIG. The other coated band coil 5 has the same configuration, and the corresponding portions are denoted by the suffix a. The guide means 17 is realized by a rail 26 made of shaped steel provided on the holding frame 16 and a wheel 27 rotatably provided on the holding base 13 and guided by the rail 26. Similarly, the guide means 18 of the other support 14 is realized by rails 28 and wheels 29.

The holding frame 16 is provided with a reel 30 for supporting the covering band insertion coil 3.
Is rotationally driven by a motor 31 via a speed reducer 32. The holding frame 16 is provided with an opening 33 through which the covering band 2 from the covering band coils 4 and 5 travels.
Are provided (see FIGS. 1 and 4). The roller 36 can be displaced to the position indicated by the imaginary line 37, and
4, 36 and the cover band of the cover band coil 5 by the roller 3 and the roller 3 in the position indicated by the phantom line 37.
Guided by 6.

The holding frame 16 is provided so as to be displaceable in the axial direction of the reel 30, that is, in the axial direction of the coating band coils 4 and 5 by a guide means 39 provided in the apparatus main body 38. The double acting hydraulic cylinder 40 is
8, the piston rod 41 of which is connected to the holding frame 16, whereby the holding frame 16 is
9 is driven for displacement. This hydraulic cylinder 40 constitutes a second displacement driving means.

FIG. 5 is a diagram showing a hydraulic circuit for controlling the double-acting hydraulic cylinders 19 and 20 as the first displacement driving means. A pair of spring-centered, double-coil, three-position solenoid-operated directional control valves 42,
43, a spring offset type two-position electromagnetic switching valve 44 is provided, and each hydraulic cylinder 19,
A pair of pilot operated check valves 45, 4 individually for each 20
6 are provided. Each of the electromagnetic switching valves 42 and 43 has three positions A, B and C. This electromagnetic switching valve 42 has ports e to
h, and the electromagnetic switching valve 43 has four ports ad. The electromagnetic switching valve 44 has two positions D and E,
It has two ports i, j, k, m. Hydraulic cylinder 19
Has a port y in the room on the cylinder head side and a port x in the room on the piston rod side. The hydraulic cylinder 20 has a port v in the cylinder head side room and a port w in the piston rod side room. The check valve 45 has ports s and t connected to the port g of the electromagnetic switching valve 42 and the port y of the hydraulic cylinder 19, and has a pilot port u connected to the port h of the electromagnetic switching valve 42. . Similarly, the check valve 46 has ports p and q connected to the port c of the electromagnetic switching valve 43 and the port v of the hydraulic cylinder 20, respectively.
And a pilot port r connected to the port d of the electromagnetic switching valve 43.

The ports e and a of the electromagnetic switching valves 42 and 43 are connected to a hydraulic pressure source 47, and the ports f and b are connected to a tank 48.

The operating states of the electromagnetic switching valves 42, 43, 44 and the check valves 45, 46 of the hydraulic circuit shown in FIG. 5 are as shown in Table 1. In Table 1, when the check valves 45 and 46 are turned ON, the hydraulic oil is supplied from the hydraulic pressure source 47 to the pilot ports u and r, the check operation is released, and the ports t to s and port q are released. OFF indicates a state in which hydraulic oil is allowed to flow to port p, and OFF indicates a state in which the pressure of hydraulic oil in pilot ports u and r is low, and thus a check operation is achieved.

[0017]

[Table 1]

In operation, the electromagnetic switching valves 42 and 43 are in the position B when the cover band coil 4 is supported by the support members 7 and 8 and the cover band 2 is wound or unwound and supplied by the spool 6. In this state, the electromagnetic switching valve 44 is excited to the position E, and the movement of the holding tables 13 and 14 is prevented by the action of the check valves 45 and 46.

The support members 7, 8 and thus the holding table 13,
14 are moved in the mutually approaching direction, the electromagnetic switching valve 4
2, 43 are set to position A, and the electromagnetic switching valve 44 is demagnetized to set to position D. Thus, the hydraulic oil from the hydraulic pressure source 47 is supplied from the ports a and c of the electromagnetic switching valve 43 to the ports v and q of the check valve 46 and from the port v of the hydraulic cylinder 20 to the chamber on the cylinder head side. The hydraulic oil in the chamber on the piston rod side returns from the port w to the tank 48 via the ports i and m of the electromagnetic switching valve 44 and further via the ports d and b of the electromagnetic switching valve 43. The same applies to the hydraulic cylinder 19, and the hydraulic oil from the hydraulic pressure source 47 passes through the ports e and g of the electromagnetic switching valve 42, the ports s and t of the check valve 45, and the chamber on the cylinder head side of the hydraulic cylinder 19. Through the port y, and the hydraulic oil in the chamber on the piston rod side returns from the port x to the tank 48 through the ports j and k of the electromagnetic switching valve 44 and the ports h and f of the electromagnetic switching valve 42.

The support members 7, 8 and thus the holding tables 13,
14 can be displaced in directions away from each other by the electromagnetic switching valve 4
Positions 2 and 43 are position C, and position of the electromagnetic switching valve 44 is position E. Thus, the hydraulic oil from the hydraulic pressure source 47 is supplied through the ports a and d of the electromagnetic switching valve 43 and from the ports m and i of the electromagnetic switching valve 44 to the chamber on the piston rod side of the hydraulic cylinder 20 via the port w. The high-pressure hydraulic oil at the port d is guided to the pilot port r of the check valve 46, whereby the check action of the check valve 46 is released. Therefore, the hydraulic oil in the chamber on the cylinder head side of the hydraulic cylinder 20 returns from the port v to the tank 48 via the ports q and p of the check valve 46, the ports c and b of the electromagnetic switching valve 43, and the like. Similarly, regarding the hydraulic cylinder 19,
The hydraulic oil from the hydraulic pressure source 47 is supplied from the ports e and h of the electromagnetic switching valve 42 to the chamber on the piston rod side of the hydraulic cylinder 19 via the ports k and j of the electromagnetic switching valve 44 via the port x. . The hydraulic oil in the chamber on the cylinder head side of the hydraulic cylinder 19 passes through the port t through the port s through the port t of the check valve 45 whose check action has been released from the port y, and further through the ports g and f of the electromagnetic switching valve 42. Return to tank 48.

The support members 7, 8 and thus the holding tables 13,
In order to move 14 to the right in FIGS. 2 and 3, the electromagnetic switching valve 42 is set to the position C, the electromagnetic switching valve 43 is set to the position A, and the electromagnetic switching valve 44 is set to the position E. Therefore, the hydraulic oil from the hydraulic pressure source 47 is supplied from the ports a and c of the electromagnetic switching valve 43 to the room on the cylinder head side of the hydraulic cylinder 20 via the ports p and q of the check valve 46 and the port v. The hydraulic oil in the chamber on the piston rod side of the hydraulic cylinder 20 is supplied from the port w to the chamber on the piston rod side of the hydraulic cylinder 19 from the port i through the position E from the port i of the electromagnetic switching valve 44 to the port x. . The electromagnetic switching valve 42 is in the position C as described above, so that the hydraulic oil from the hydraulic pressure source 47 is supplied to the pilot port u of the check valve 45 via the ports e and h, and thus the check valve 45 Has been released. The hydraulic oil from the port h at the position C of the electromagnetic switching valve 42 is supplied to the port k of the electromagnetic switching valve 44 and is closed. Hydraulic oil in the chamber on the cylinder head side of the hydraulic cylinder 19 passes from the port y through the port t to the port t of the check valve 45 from which the check action is released, and further through the ports g and f of the electromagnetic switching valve 42. Return to tank 48.

The support members 7, 8 and thus the holding table 13,
To move 14 to the left in FIGS. 2 and 3, the electromagnetic switching valve 42 is set to the position A, the electromagnetic switching valve 43 is set to the position C, and the electromagnetic switching valve 44 is set to the position E. Thereby, the hydraulic power source 47
Is supplied from the port e of the electromagnetic switching valve 42 through the port g, further through the ports s and t of the check valve 45, and into the chamber on the cylinder head side of the hydraulic cylinder 19 through the port y. The hydraulic oil in the chamber on the piston rod side of the hydraulic cylinder 19 is supplied from the port x to the position E of the electromagnetic switching valve 44.
Flows into the chamber on the piston rod side of another hydraulic cylinder 20 through the ports j and i. When the electromagnetic switching valve 43 is at the position C as described above, the high-pressure hydraulic oil of the hydraulic power source 47 is guided from the port a through the port d to the pilot port r of the check valve 46, whereby the check valve 46 is Is released, and the hydraulic oil from the port d is closed at the port m at the position E of the electromagnetic switching valve 44. Hydraulic oil from the chamber on the cylinder head side of the hydraulic cylinder 20 is supplied from the port v.
The flow returns from the port q of the check valve 46 from which the check action is released via the port p to the tank 48 via the ports c and b of the electromagnetic switching valve 43.

FIG. 6 is a diagram showing a hydraulic circuit related to the double-acting hydraulic cylinder 40 for driving the holding frame 16 for displacement. Hydraulic oil from the hydraulic source 51 is supplied from the electric / hydraulic servo unit 52 to the hydraulic cylinder 40 via the two-position electromagnetic switching valve 53, and return oil returns to the tank 54. In the servo unit 52, when the input current signal is not supplied to the drive coil 55, the injection tube 56 maintains the neutral position by the zero-adjustment spring. When the input current signal changes to positive or negative, a force is generated between the coil and the permanent magnet in the drive coil 55, and the balance of the force in the drive coil 55 is broken. Swings Hydraulic oil from a hydraulic source 51 is supplied to the injection pipe 56 via a pressure reducing valve 62, and the hydraulic oil jetted from the tip of the injection pipe 56 is supplied to two receiving pipes arranged on a spool of a pilot valve 57. It flows toward the outlet 58 or 59. When the tip of the injection pipe 56 swings to either side of the receiving ports 58 and 59, a hydraulic pressure difference is generated at the receiving ports 58 and 59, and the spool of the pilot valve 57 moves in the direction in which the injection pipe 56 is displaced. Depends on moving and stationary. Thus, the spool of the pilot valve 57 follows the movement of the injection pipe 56, and the displacement of the injection pipe 56 is proportional to the input current signal.
The amount of displacement of the spool is proportional to the flow rate of the hydraulic oil flowing through the pilot valve 57, and thus the input current signal and the oil amount of the hydraulic oil, and thus the speed of the piston rod 41 of the cylinder 40, maintain a certain relationship. Thus, the hydraulic cylinder 40
Of the piston rod 41 and thus the holding frame 16 can be set exactly at the desired position.

In the above-described embodiment, common holding stands 13 and 14 are provided in association with the two coated band coils 4 and 5,
Although common hydraulic cylinders 19 and 20 are provided, as another embodiment of the present invention, each of
Each time, the holding tables 13 and 14 and the hydraulic cylinders 19 and 20
May be provided so that the attachment and detachment of the coating strip coils 4 and 5 can be performed individually.

The present invention can be widely practiced in connection with continuous annealing lines, slitter lines and other metal strip lines, as well as tension leveler lines. The covering band may be kraft paper for protecting the metal band, but may also be a film made of a material such as a synthetic resin.

[0026]

As described above, according to the present invention, the apparatus main body is provided on the floor or the like, and the holding frame is displaced and driven by the second displacement driving means with respect to the apparatus main body. A pair of holding tables, each of which is driven to be displaced by the displacement driving means, is provided, and the holding tables are provided with support members for respectively supporting both ends of the covering band coil in the axial direction. The support members can be displaced in the mutually approaching direction, the separating direction, and the same direction, so that the configuration can be reduced in size, and the capacity of the first and second displacement driving means can be reduced to improve the responsiveness. Become like

[Brief description of the drawings]

FIG. 1 is an overall simplified perspective view of one embodiment of the present invention.

FIG. 2 is a front view of a portion of the embodiment shown in FIG.

FIG. 3 is a plan view of a portion of the embodiment shown in FIGS. 1 and 2;

FIG. 4 is a side view of a portion of the embodiment shown in FIGS.

FIG. 5 is a double-acting hydraulic cylinder 1 which is a first displacement driving means.
It is a figure which shows the hydraulic circuit relevant to 9,20.

FIG. 6 shows a double-acting hydraulic cylinder 40 as a second displacement driving means.
FIG. 3 is a diagram showing a hydraulic circuit related to FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Metal band 2 Coated band 3 Coated band insertion coil 4, 5 Coated band coil 6 Spool 7, 8 Supporting member 13, 14 Holder 15, 40 Motor 16 Holding frame 19, 20 Double-acting hydraulic cylinder 40 Double-acting hydraulic cylinder 42, 43 Spring-centered double-coil 3-position electromagnetic switching valve 44 Spring offset 2-position electromagnetic switching valve 45, 46 Pilot operated check valve 47, 51 Hydraulic source 52 Current / hydraulic servo unit 53 2-position electromagnetic switching valve 54 Tank

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B21C 47/26 B21C 47/34

Claims (2)

(57) [Claims] 1. A supporting member for supporting a coated band coil at both ends in the axial direction, a holding table for rotatably holding the supporting member, and a holding frame provided with the holding table movably in the axial direction. A pair of first displacement driving means for mutually driving the holding table in the axial direction on the holding frame; and operating the first displacement driving means to move the holding table close to each other along the axial direction. Control means for displacing in the direction, the separating direction and the same direction, a reel for supporting a covering band insertion coil wound by laminating a covering band on a metal band, and a rotating drive mounted on a holding frame and rotating the reel. A device for inserting and winding a covering band, comprising: means, a device main body, and second displacement driving means for driving the holding frame to be displaced relative to the device main body in the axial direction. The first displacement driving means is a double-acting hydraulic cylinder, and the control means is a pair of a spring-centered, double-coil, three-position electromagnetic switching valve provided for each hydraulic cylinder, A position solenoid-operated switching valve, a pair of pilot operated check valves provided for each hydraulic cylinder, and a hydraulic pressure source. In order to displace the support member in the approaching direction, hydraulic oil from the hydraulic source is supplied to each of three positions. The hydraulic oil in the room on the side of the coated band coil is supplied to the room on the side opposite to the coated band coil via the electromagnetic switching valve and the two-position electromagnetic switching valve, and the two-position electromagnetic switching valve and each three-position electromagnetic switching. To return the support member to the tank via the valve and to displace the support member in the separating direction, the hydraulic oil from the hydraulic source is supplied from the three-position electromagnetic switching valve to the covering band coil side of the hydraulic cylinder via the two-position electromagnetic switching valve. The check oil is supplied to the shop, and each check valve is opened in the opposite direction, and the hydraulic oil in the room on the opposite side of the coating band coil is returned to the tank from each check valve and each three-position electromagnetic switching valve, and the same support member is used. Hydraulic fluid from a hydraulic source is supplied from one three-position solenoid-operated directional control valve via one check valve to a room on the opposite side of the covering band coil of one hydraulic cylinder, The hydraulic oil in the room on the side of the coated band coil of the hydraulic cylinder is guided to the room on the side of the coated band coil of the other hydraulic cylinder via the two-position solenoid-operated directional control valve. 2. The device according to claim 1, wherein the hydraulic oil in the room is returned to the tank from the other check valve and the other three-position solenoid-operated directional control valve.