WO2023063201A1 - Coil material correction device and coil material conveyance method - Google Patents

Coil material correction device and coil material conveyance method Download PDF

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Publication number
WO2023063201A1
WO2023063201A1 PCT/JP2022/037386 JP2022037386W WO2023063201A1 WO 2023063201 A1 WO2023063201 A1 WO 2023063201A1 JP 2022037386 W JP2022037386 W JP 2022037386W WO 2023063201 A1 WO2023063201 A1 WO 2023063201A1
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WIPO (PCT)
Prior art keywords
coil material
roller
rollers
conveying
coil
Prior art date
Application number
PCT/JP2022/037386
Other languages
French (fr)
Japanese (ja)
Inventor
龍介 大田
毅彦 重藤
Original Assignee
株式会社アマダ
株式会社アマダプレスシステム
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Application filed by 株式会社アマダ, 株式会社アマダプレスシステム filed Critical 株式会社アマダ
Publication of WO2023063201A1 publication Critical patent/WO2023063201A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/16—Unwinding or uncoiling
    • B21C47/18—Unwinding or uncoiling from reels or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material

Definitions

  • the present invention relates to a coil material straightening device and a coil material conveying method.
  • a machining method has been used in which a long coiled material (hereinafter referred to as coil material) is machined while being continuously or intermittently supplied.
  • coil material a long coiled material
  • the curl of the coil material supplied from an uncoiler (supplying device) is removed by a leveler (coil material correcting device), and then the coil material is transferred to a press device via a feeder (conveying device). It is conveyed to processing equipment such as.
  • a buffer section is provided between the leveler and the feeder in order to absorb the speed difference between the supply speed of the coiled material supplied from the uncoiler and the conveying speed of the coiled material when processed by the processing equipment, or the difference in the conveying length per time. Establishment is done.
  • a buffer part is a part which gives allowances in the length by bending a coil material in the path
  • Patent Document 1 discloses a device that realizes the conveyance of coil material using a buffer section. According to this, the coiled material supplied from the uncoiler is curved after passing through the coiled material straightening device and conveyed to the mechanical press.
  • the coil material passes through the air without being supported from below after passing through the coil material supply device, so that the coil material bends downward due to its own weight after passing through the coil material supply device. It was possible. Depending on the material strength and thickness of the coil material, the bending may remain in the coil material as a flex mark, which may impair the commercial value of the coil material.
  • the present invention has been made in view of the above circumstances. It is an exemplary object to provide an apparatus and method for transporting coiled material.
  • a coil material straightening device as an exemplary aspect of the present invention has the following configuration.
  • a coil material straightening device for a pair of inlet rollers that sandwich the coil material conveyed from the supply device from the front and back; a pair of exit rollers arranged downstream of the entrance roller in the conveying direction of the coil material and sandwiching the coil material from the front and back; a body disposed between the entrance roller and the exit roller;
  • the main body is A pair of conveyers that sandwich the coil material from the front and back along a conveying surface that connects the passing surface of the coil material with the passage surface of the entrance roller and the passage surface of the exit roller and convey the coil material to the processing device side.
  • Laura and a plurality of correction rollers for correcting the curl of the coil material by alternately pressing the coil material from its front and back sides on the downstream side of the transport roller in the transport direction;
  • One or more support rollers for supporting the coil material from below are disposed downstream of the exit roller in the conveying direction,
  • a coil material correcting device wherein a contact position between the support roller and the coil material is located above the conveying surface.
  • a coil material conveying method as another exemplary aspect of the present invention has the following configuration.
  • a coil material conveying method using a coil material straightening device The correction device a pair of inlet rollers that sandwich the coil material conveyed from the supply device from the front and back; a pair of exit rollers arranged downstream of the entrance roller in the conveying direction of the coil material and sandwiching the coil material from the front and back; A pair of conveyers that sandwich the coil material from the front and back along a conveying surface that connects the passing surface of the coil material with the passage surface of the entrance roller and the passage surface of the exit roller and convey the coil material to the processing device side.
  • One or a plurality of support rollers for supporting the coil material from below are disposed downstream of the exit roller in the transport direction, and the position of contact between the support roller and the coil material is positioned relative to the transport surface.
  • FIG. 1 is an overall configuration diagram of a press system according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a schematic configuration of the pressing device shown in FIG. 1.
  • FIG. 3 is a front view showing a schematic configuration of the leveler shown in FIG. 1.
  • FIG. 4 is a block diagram showing how each device in the press system of FIG. 1 is interconnected.
  • FIG. 1 is an overall configuration diagram of a press system S according to an embodiment.
  • FIG. 1 also shows the conveying direction and the upstream, downstream, and vertical directions.
  • an uncoiler 10 a feeder 20, and a press device (processing device) 30 are arranged in order from the upstream side to the downstream side along the direction in which the coiled material 12 is supplied (conveyance direction).
  • a leveler (coil straightening device) 40 is also arranged between the uncoiler 10 and the press device 30 .
  • the leveler 40 is arranged between the uncoiler 10 and the feeder 20 .
  • “between” means “between” along the conveying direction of the coil material 12 with one side being the upstream side and the other side being the downstream side.
  • the uncoiler 10, leveler 40 and feeder 20 operate in conjunction with the processing operation of the press device 30.
  • the feeder 20 does not have to be arranged separately.
  • a loop table for controlling the bending (loop) of the coil material 12 may be arranged upstream or downstream of the leveler 40 in the conveying direction, but illustration and description of the loop table are omitted here.
  • An uncoiler 10 that is a holding device for holding the coil material 12 has a mandrel 11 , a control section 13 and a drive section 14 .
  • the mandrel 11 holds the coiled material 12 to be processed by the pressing device 30 .
  • the coil material 12 is a long length of material wound into a coil, and the inner diameter portion thereof is held by the mandrel 11 .
  • the control unit 13 rotates the mandrel 11 by the drive unit 14 so as to be interlocked with the processing operation by the press device 30, unwinds the coil material 12, and supplies it.
  • the feeder 20 is a conveying device that conveys the coil material 12 held by the uncoiler 10 toward the press device 30 .
  • the feeder 20 has a lower feed roller 21 , an upper feed roller 22 , a motor 23 and a controller 26 .
  • the lower feed roller 21 is rotatably attached to a fixed frame (not shown) of the feeder 20.
  • the upper feed roller 22 is a roller that pinches (nips) the coil material 12 together with the lower feed roller 21, and its pinching force (nip force) can be adjusted. It is movable and rotatably mounted.
  • the motor 23 rotates the lower feed roller 21 .
  • the rotation of the lower feed roller 21 is transmitted to the upper feed roller 22 by transmission means such as gears (not shown).
  • the upper feed roller 22 may be driven by the conveying force of conveying the coiled material 12 due to the rotational drive of the lower feed roller 21 being transmitted to the upper feed roller 22 as a frictional force.
  • the lower feed roller 21 and the upper feed roller 22 feed the coil material 12 to the press device 30 at a predetermined feed length.
  • the feed length is the length of the coiled material 12 required for one processing by the press device 30 , and is the length of the coiled material 12 conveyed to the press device 30 by the feeder 20 for one time.
  • the motor 23 is, for example, a servomotor, and is controlled by the controller 26 by a known control method.
  • the feeder 20 may have an input unit, display unit, and storage unit (not shown).
  • the input section By having the input section, the operator can input setting contents, parameters, and the like necessary for conveying control in the feeder 20 from the input section.
  • the display section By having the display section, it is possible to display the above-described setting contents, parameters, the current operation status of the feeder, and the like on the display section.
  • the storage unit By having the storage unit, it is possible to store the setting contents and parameters input from the input unit in the storage unit, and to store in advance the control program for executing the operation control of the feeder 20 in the storage unit. In addition, it can be used as a storage unit of a calling source for using the above-described setting contents, parameters, and control programs.
  • FIG. 2 is a perspective view showing a schematic configuration of the press device 30 according to the embodiment.
  • the press device 30 is, for example, an integrated straight-side frame type or C-frame type press device 30 . Further, the press device 30 is, for example, a device that performs progressive press processing (progressive processing) in which a plurality of processes are performed on a plurality of stages.
  • FIG. 2 shows the conveying direction of the coil material 12, the upstream (left), the downstream (right) in the conveying direction, the vertical direction, and the front and rear directions (front and back).
  • the press device 30 includes a drive motor 304 , a transmission mechanism 306 , a crankshaft 308 , a connecting rod 310 , a slide 312 and a bolster 322 inside and outside a housing 302 .
  • the press device 30 also has a controller 314 , a storage section 315 , a display section 316 and an input section 318 .
  • the press device 30 has a sensor 324 , a rotary encoder 325 and a gib 326 .
  • Progressive processing is also called transfer stamping, and the transfer press tool that constitutes it can be a single press die (upper and lower dies) by itself, or can be arranged in a continuous station. There can also be multiple press dies.
  • the drive motor 304 is, for example, a servo-controlled servomotor, which vertically moves the mold 303 to be described later via a transmission mechanism 306, a crankshaft 308, and a connecting rod 310 while controlling the amount and direction of rotation.
  • the transmission mechanism 306 includes transmission members such as gears and belts, and transmits the rotation of the motor shaft of the drive motor 304 to the crankshaft 308 .
  • Control signals to drive motor 304 are sent from controller 314 .
  • the crankshaft 308 and connecting rod 310 are for converting the rotational movement of the motor shaft transmitted by the transmission mechanism 306 into reciprocating movement (vertical movement in this embodiment).
  • the rotation of the motor shaft causes the crankshaft 308 to rotate, and the rotation is transmitted to a connecting rod 310 having one end connected to the crankshaft 308 to move the connecting rod 310 up and down.
  • crankshaft 308 is provided with a rotary cam switch (not shown) that outputs an ON signal or an OFF signal in conjunction with the rotation of the crankshaft 308 .
  • the rotary cam switch outputs an ON signal or an OFF signal when, for example, the rotation of the crankshaft 308 reaches a predetermined angle, in other words, when it reaches a predetermined timing during machining operation.
  • the timing at which the rotary cam switch outputs the ON signal (or OFF signal) is hereinafter referred to as output timing.
  • the controller 314 interlocks with the uncoiler 10 and the feeder 20 based on the signal output from the rotary cam switch to perform machining operations.
  • a slide 312 is connected near the other end of the connecting rod 310 . As the connecting rod 310 moves up and down, the slide 312 moves up and down along the gib 326 .
  • a bolster 322 is arranged to face the slide 312 in the press device 300 .
  • An upper mold 303 a as a part of the mold 303 is attached to the surface of the slide 312 facing the bolster 322 (lower surface in this embodiment).
  • a lower mold 303b that forms a pair with an upper mold 303a is mounted as a part of the mold 303 on the surface (upper surface in this embodiment) of the bolster 322 facing the slide 312 .
  • the coil material 12 as an object to be processed is arranged between the upper die 303a and the lower die 303b, and is pressed by the upper die 303a and the lower die 303b.
  • the coil material 12 is conveyed, for example, from the left (upstream) side to the right (downstream) side in FIG.
  • processing is performed from the upstream side in the conveying direction of the coil material 12 to the early stage, and processing is performed in the downstream side in the conveying direction of the coil material 12 in the final stage.
  • the drive motor 304 rotates under the control of the controller 314 .
  • Rotation of the drive motor 304 is transmitted to the connecting rod 310 via the transmission mechanism 306 and the crankshaft 308, and the slide 312 moves up and down.
  • the slide 312 moves downward, the upper die 303a and the lower die 303b are pressed, and the coil material 12 is pressed.
  • the transmission mechanism 306 is provided with a rotary encoder 325 which is rotation speed detection means for detecting the rotation speed of the crankshaft 308 .
  • the controller 314 can detect the position of the slide 312 by detecting the rotation speed of the crankshaft with the rotary encoder 325 .
  • the sensor 324 which is load detecting means for detecting the load during processing, is a sensor for detecting the load acting on the connecting rod 310 when the press device 30 presses the coil material 12, and is, for example, a load cell.
  • Sensors 324 may be, for example, strain gauges mounted on housing 302 .
  • Sensor 324 may be installed at any position on connecting rod 310 (for example, near the center).
  • a plurality of sensors 324 may be installed. For example, the strain on the left and right sides of the housing 302 may be detected respectively, and the detected results may be added to obtain the total load. 2, the side where the display unit 316 is arranged is the front side of the press device 300. As shown in FIG.
  • the controller 314 controls the press device 30 according to various programs stored in the storage section 315 .
  • a display unit 316 displays data indicating the state of the press device 30 .
  • the input unit 318 is used to input data necessary for operating the press device 30 .
  • the controller 314 controls the uncoiler 10, the leveler 40, the feeder 20, and the press device 30 so as to work together (see FIG. 4).
  • the controller 314 causes the feeder 20 to convey the coil material 12 to the next processing stage at a predetermined feed rate by a predetermined feed length. to control.
  • FIG. 3 is a schematic configuration diagram of the leveler 40 according to the embodiment. 3, the leveler 40 is viewed from the front, that is, the upstream side in the conveying direction of the coil material 12 is on the left side, and the downstream side is on the right side.
  • the leveler 40 is arranged and used between the uncoiler 10 and the press device 30 .
  • the leveler 30 is a device for straightening the curl of the coil material 12 supplied from the uncoiler 10 .
  • the leveler 40 generally includes a pair of inlet rollers 41, a pair of outlet rollers 42, a body portion 40a, and a base portion 40b.
  • the body portion 40 a has a pair of conveying rollers 43 , a plurality of correction rollers 44 , a driving motor 45 and a control portion 46 .
  • One or more support rollers 47 are positioned downstream of the exit rollers.
  • the inlet rollers 41 are a pair of rollers that first pinch the supplied coil material 12 from the front and back in the leveler 40, and are arranged upstream from the conveying rollers 43 (that is, upstream from the main body 40a).
  • the inlet rollers 41 sandwich the coil material 12 with a predetermined gripping force (nipping force) from above and below, and rotate as the coil material 12 is conveyed.
  • the entrance roller 41 is not a roller driven by a drive source, but a driven roller that rotates with the coil material 12 being conveyed.
  • the upper roller of the inlet roller 41 after adjusting the height position of the upper roller of the inlet roller 41 with respect to the lower roller so as to exert a predetermined holding force (nip force) according to the material of the coil material 12, the upper roller The height position may be fixed by a fixing member such as a bolt.
  • the exit rollers 42 are a pair of rollers arranged downstream from the conveying roller 43 and a correction roller 44 (that is, downstream from the main body portion 40a). Similarly to the entrance roller 41, the exit roller 42 also pinches the coil material 12 from the front and back with a predetermined pinching force (nip force) from above and below, and rotates as the coil material 12 is conveyed.
  • the exit roller 42 is not a roller driven by a drive source, but a driven roller that rotates along with the conveying of the coil material 12 .
  • the height position of the upper roller of the outlet roller 42 with respect to the lower roller is adjusted so as to exert a predetermined holding force (nip force) according to the material of the coil material 12.
  • a conveying plane P of the coil material 12 is defined as a plane connecting the passage plane of the coil material 12 passing through the entrance roller 41 and the passage plane of the coil material 12 passing through the exit roller 42 .
  • the plane including the upper side surface Pt (see FIG. 3) of the coil material 12 and the coil material 12 passing through the entrance roller 41 and the exit roller 42 should be A plane containing the lower surface Pb (see FIG. 3) can be conceptualized.
  • the conveying plane P here means a passing plane through which the lower side surface Pb of the coil material 12 passes through the entrance roller 41 and the exit roller 42 and its extension plane.
  • the body part 40a can be rotated and fixed in the direction of the arrow ⁇ around the rotation axis Q with respect to the base part 40b. Therefore, the conveying surface P of the coil material 12 can be parallel to the substantially horizontal plane as shown in FIG. 3, or can be inclined as shown in FIG. By inclining the conveying surface P, it is possible to dispose so that the height of the upstream side in the conveying direction is different from the height of the downstream side in the conveying direction. For example, in FIG. , are arranged so that the downstream side is at a higher position.
  • the base portion 40b is a pedestal that rotatably fixes the main body portion 40a, and is a portion that is installed on the floor surface.
  • the transport rollers 43 are a pair of rollers that sandwich (nip) the coil material 12 along the transport surface P from the front and back.
  • the conveying roller 43 has one end connected to a driving motor 45, and is driven to rotate by the driving motor 45.
  • the conveying roller 43 has a function of conveying the coil material 12 in contact with the peripheral surface thereof toward the press device 30 along the conveying direction. have.
  • the other of the conveying rollers 43 nips the coil material 12 with a predetermined nipping force (nipping force) with respect to the conveying roller 43 with the drive-side power transmitted by a transmission means such as a gear.
  • the other of the conveying rollers 43 may be a driven roller arranged to rotate together with the conveying of the coil material.
  • the clamping force (nip force) of the driven-side transport roller 43 to the driving-side transport roller 43 can be adjusted so that, for example, even if the thickness or material of the coil material 12 is changed, the coil material 12 can be transported properly without slipping. It may be said that
  • the conveying surface of the conveying roller 43 that is, the passage surface of the coil material 12 on the conveying roller 43 is preferably in the same plane as the conveying surface P, and in this embodiment, they are in the same plane. Further, driving of the conveying rollers 43 by the drive motor 45 is controlled by the controller 46 . As shown in FIG. 4, the control unit 46 is connected to a controller 314, and cooperates with the processing of the coiled material 12 by the press device 30, the supply of the coiled material 12 by the uncoiler 10, and the conveyance of the coiled material 12 by the feeder 20. do.
  • the correction roller 44 is arranged inside the main body 40a together with the conveying roller 43.
  • the correction rollers 44 are a plurality of rollers that are arranged on the downstream side of the conveying roller 43 in the conveying direction, and correct the curl of the coil material 12 by alternately pressing the coil material 12 from its front and back sides.
  • four correction rollers 44 are arranged on the upper side of the conveying plane P and four correction rollers 44 are arranged on the lower side.
  • the correcting rollers 44 are arranged such that upper rollers and lower rollers are staggered, that is, nested.
  • the lowermost surface of the upper correction roller 44 extends below the upper side surface Pt of the coil material 12, and the uppermost surface of the lower correction roller 44 extends beyond the lower surface Pb of the coil material 12, that is, the conveying surface P.
  • These straightening rollers 44 can apply appropriate stress to the coiled material 12 by virtue of their presence. The stress promotes plastic deformation of the coil material 12, so that the curl of the coil material 12 after passing through the correction rollers 44 is removed.
  • the support roller 47 is one or a plurality of rollers arranged on the downstream side of the exit roller 42 and has a function of supporting the coil material 12 from below after passing through the exit roller 42 .
  • two support rollers 47a and 47b are arranged.
  • the contact positions of the support rollers 47a and 47b with the coil material 12, that is, the positions where the support rollers 47a and 47b support the lower side surface Pb of the coil material 12 are located above the conveying plane P.
  • the leveler 40 After passing through the coil material 12, the coil material 12 can be conveyed so as to warp upward.
  • the buffer portion B of the coil material 12 that is curved upward can be formed.
  • the coil material 12 after passing the support roller 47 advances obliquely upward the coil material 12 may bend due to its own weight and hang downward, or the coil material 12 may have a bend mark due to the bending. It can prevent you from getting stuck.
  • the contact position between the support roller 47 and the coil material 12 when the conveying surface P is inclined from the upstream side toward the downstream side in the conveying direction is also the same as the conveying surface P located above.
  • "above the transport plane P” means a direction toward the side where the support rollers 47 are not arranged when viewed from the transport plane P.
  • FIG. 1 illustrates a case where the support roller 47 protrudes slightly from the conveying surface P because the inclination of the conveying surface P is set at a steep angle.
  • the plurality of support rollers 47a, 47b are attached to the vertical plates 2a, 2b, respectively, and the vertical plates 2a, 2b are attached to the horizontal plate 3 so as to be vertically slidable.
  • the support rollers 47a and 47b can be independently adjusted in the vertical direction (direction of arrow Y), and the amount of protrusion from the conveying surface P can be adjusted.
  • the adjustment range of the vertical positions of the support rollers 47a and 47b is preferably limited to a range in which the uppermost surfaces of the rollers 47a and 47b are positioned above the conveying plane P. If the uppermost surfaces of the support rollers 47a and 47b are above the transport plane P, the contact positions between the support rollers 47a and 47b and the coil material 12 are above the transport plane P.
  • the horizontal plate 3 may be composed of two horizontal plates 3a and 3b.
  • the horizontal plate 3a is slidable in the direction (arrow X direction) along the conveying direction with respect to the mounting plate 4 of the exit roller 42
  • the horizontal plate 3b is slidable in the direction along the conveying direction with respect to the horizontal plate 3a. It may be slidable (in the direction of the arrow X). If the vertical plate 2a is attached to the horizontal plate 3a, the interval (first interval) between the exit roller 42 and the support roller 47a along the arrow Y direction can be adjusted. Further, if the vertical plate 2b is attached to the horizontal plate 3b, the interval (second interval) between the support rollers 47a and 47b along the arrow Y direction can be adjusted.
  • a suitable buffer portion B can be formed. Also, a first distance between the support roller 47 and the exit roller 42 along the arrow X direction, and a second distance between the support rollers 47 along the arrow X direction when there are a plurality of support rollers 47 (47a, 47b) can be adjusted, it is possible to form an appropriate buffer portion B for various coil materials 12 while preventing the occurrence of bending and bending marks.
  • FIG. 4 is a block diagram showing how each device in this press system S is interconnected. As shown in FIG. 4, the uncoiler 10, leveler 40, feeder 20 and press device 30 are interconnected. Each controller 13 , 46 , 26 is connected to a controller 314 so that the devices 10 , 40 , 20 , 30 are cooperatively controlled based on instructions from the controller 314 .
  • the coil material 12 supplied from the uncoiler 10 reaches the buffer section B via the leveler 40. After that, it is conveyed to the pressing device 30 via the feeder 20 .
  • the feeder 20 intermittently conveys the coiled material 12 for a feed length necessary for processing.
  • a sensor (not shown) is arranged in the buffer portion B to detect the surplus length of the coil material in the buffer portion B. As shown in FIG.
  • the surplus length becomes equal to or less than a certain lower limit length, the uncoiler 10 and the leveler 40 are driven (or high-speed transport is performed), and the coil material 12 in the buffer section B is replenished.
  • the surplus length in the buffer section B exceeds a certain upper limit length, the uncoiler 10 and the leveler 40 are stopped (or transported at a low speed), and the replenishment of the coil material 12 to the buffer section B is stopped.

Abstract

Provided are a coil material correction device and a coil material conveyance method whereby bending due to the weight of the coil material at a buffer part can be effectively prevented, and bending marks can be effectively prevented from occurring in the coil material. A leveler 40 is disposed between an uncoiling unit 10 that feeds a coil material 12 and a press device 30, and corrects curling of the coil material 12, the leveler including: a pair of entrance rollers 41 that sandwich the coil material 12; a pair of exit rollers 42 that are disposed on the downstream side of the entrance rollers 41 and that sandwich the coil material 12; and a main body part 40a that is disposed between the entrance rollers 41 and the exit rollers 42. The main body part 40a includes a pair of conveyance rollers 43 that convey the coil material 12 along a conveyance surface P, and a plurality of correction rollers 44 that correct the coil waves of the coil material 12. Support rollers 47 that support the coil material 12 from below are disposed downstream the exit rollers 42. Contact positions of the support rollers 47 and the coil material 12 are positioned above the conveyance surface P.

Description

コイル材矯正装置及びコイル材の搬送方法COIL MATERIAL CORRECTION DEVICE AND COIL MATERIAL CONVEYING METHOD
　本発明は、コイル材矯正装置及びコイル材の搬送方法に関する。 The present invention relates to a coil material straightening device and a coil material conveying method.
　従来、コイル状とされた長尺の加工材料（以下、コイル材という。）を連続的又は断続的に供給しつつ機械加工をする機械加工方法が行われている。この方法によれば、例えば、アンコイラ（供給装置）から供給されたコイル材の巻き癖をレベラ（コイル材矯正装置）にて除去し、その後フィーダ（搬送装置）を経由してコイル材がプレス装置等の加工装置に搬送される。 Conventionally, a machining method has been used in which a long coiled material (hereinafter referred to as coil material) is machined while being continuously or intermittently supplied. According to this method, for example, the curl of the coil material supplied from an uncoiler (supplying device) is removed by a leveler (coil material correcting device), and then the coil material is transferred to a press device via a feeder (conveying device). It is conveyed to processing equipment such as.
　アンコイラから供給されるコイル材の供給速度と加工装置で加工する際のコイル材の搬送速度との速度差又は時間あたりの搬送長の差を吸収すべく、レベラとフィーダとの間にバッファ部を設けることが行われる。バッファ部は、アンコイラと加工装置との間の経路中でコイル材を撓ませることで、その長さに余裕を持たせる部分である。バッファ部が、コイル材の供給過多や供給不足を吸収するので、アンコイラと加工装置との速度差等の機械加工への悪影響が防止される。 A buffer section is provided between the leveler and the feeder in order to absorb the speed difference between the supply speed of the coiled material supplied from the uncoiler and the conveying speed of the coiled material when processed by the processing equipment, or the difference in the conveying length per time. Establishment is done. A buffer part is a part which gives allowances in the length by bending a coil material in the path|route between an uncoiler and a processing apparatus. Since the buffer section absorbs excessive or insufficient supply of the coil material, adverse effects on machining such as a speed difference between the uncoiler and the processing device are prevented.
　バッファ部を利用したコイル材の搬送を実現したものとして特許文献１に開示のものがある。これによれば、アンコイラから供給されたコイル材がコイル材矯正装置を通過した後に湾曲して機械プレスへと搬送されている。 Patent Document 1 discloses a device that realizes the conveyance of coil material using a buffer section. According to this, the coiled material supplied from the uncoiler is curved after passing through the coiled material straightening device and conveyed to the mechanical press.
特開２００４－１４２８７６号公報JP-A-2004-142876
　しかしながら、特許文献１に開示のものは、コイル材供給装置を通過した後のコイル材が下方からサポートされない状態のまま空中を通過するため、コイル材供給装置通過後にコイル材が自重により下方に折れ曲がる可能性があった。コイル材の材料強度や厚さによっては、その折れ曲りが屈曲痕としてコイル材に残ってしまい、商品価値を損じてしまう場合があった。 However, in the case disclosed in Patent Document 1, the coil material passes through the air without being supported from below after passing through the coil material supply device, so that the coil material bends downward due to its own weight after passing through the coil material supply device. It was possible. Depending on the material strength and thickness of the coil material, the bending may remain in the coil material as a flex mark, which may impair the commercial value of the coil material.
　特に、コイル材供給装置におけるコイル材の搬送経路が下流に向けて上向きに傾斜している場合には、自重によるコイル材の折れ曲がりの状況はより深刻である。折れ曲がったときにコイル材が大略逆Ｖ字の形状を呈してしまい、高い確率で屈曲痕が残ってしまうという課題があった。 In particular, when the conveying path of the coil material in the coil material supply device is inclined upward toward the downstream, the bending of the coil material due to its own weight is more serious. There is a problem that the coil material presents an approximately inverted V shape when bent, and a bend mark remains with a high probability.
　本発明は、上記の事情に鑑みて為されたもので、バッファ部におけるコイル材の自重による折れ曲がりを効果的に防止して、コイル材に屈曲痕が生じるのを有効に防止し得るコイル材矯正装置及びコイル材の搬送方法を提供することを例示的課題とする。 SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. It is an exemplary object to provide an apparatus and method for transporting coiled material.
　上記の課題を解決するために、本発明の例示的側面としてのコイル材矯正装置は、以下の構成を有する。 In order to solve the above problems, a coil material straightening device as an exemplary aspect of the present invention has the following configuration.
　長尺の加工材料がコイル状とされたコイル材を供給する供給装置と、当該供給装置から供給された前記コイル材を加工する加工装置との間に設置され、前記コイル材の巻き癖を矯正するコイル材矯正装置であって、
　前記供給装置から搬送された前記コイル材をその表裏から挟持する一対の入口ローラと、
　前記コイル材の搬送方向における当該入口ローラの下流側に配置されて前記コイル材をその表裏から挟持する一対の出口ローラと、
　前記入口ローラと前記出口ローラとの間に配置される本体部と、を有し、
　前記本体部は、
　前記コイル材の前記入口ローラにおける通過面と前記出口ローラにおける通過面とを結ぶ搬送面に沿って前記コイル材をその表裏から挟持すると共に当該コイル材を前記加工装置側へと搬送する一対の搬送ローラと、
　前記搬送方向における当該搬送ローラの下流側で前記コイル材をその表裏から互い違いに押圧することにより前記コイル材の巻き癖を矯正する複数の矯正ローラと、を有し、
　前記搬送方向における前記出口ローラの下流には、前記コイル材を下方から支持する１又は複数の支持ローラが配置されており、
　前記支持ローラと前記コイル材との当接位置が前記搬送面よりも上方に位置している、コイル材矯正装置。 It is installed between a supply device that supplies a coil material in which a long processing material is coiled and a processing device that processes the coil material supplied from the supply device, and corrects the curl of the coil material. A coil material straightening device for
a pair of inlet rollers that sandwich the coil material conveyed from the supply device from the front and back;
a pair of exit rollers arranged downstream of the entrance roller in the conveying direction of the coil material and sandwiching the coil material from the front and back;
a body disposed between the entrance roller and the exit roller;
The main body is
A pair of conveyers that sandwich the coil material from the front and back along a conveying surface that connects the passing surface of the coil material with the passage surface of the entrance roller and the passage surface of the exit roller and convey the coil material to the processing device side. Laura and
a plurality of correction rollers for correcting the curl of the coil material by alternately pressing the coil material from its front and back sides on the downstream side of the transport roller in the transport direction;
One or more support rollers for supporting the coil material from below are disposed downstream of the exit roller in the conveying direction,
A coil material correcting device, wherein a contact position between the support roller and the coil material is located above the conveying surface.
　また、本発明の他の例示的側面としてのコイル材の搬送方法は、以下の構成を有する。 In addition, a coil material conveying method as another exemplary aspect of the present invention has the following configuration.
　長尺の加工材料がコイル状とされたコイル材を供給する供給装置と、当該供給装置から供給された前記コイル材を加工する加工装置との間に設置され、前記コイル材の巻き癖を矯正するコイル材矯正装置を用いたコイル材の搬送方法であって、
　前記矯正装置は、
　前記供給装置から搬送された前記コイル材をその表裏から挟持する一対の入口ローラと、
　前記コイル材の搬送方向における当該入口ローラの下流側に配置されて前記コイル材をその表裏から挟持する一対の出口ローラと、
　前記コイル材の前記入口ローラにおける通過面と前記出口ローラにおける通過面とを結ぶ搬送面に沿って前記コイル材をその表裏から挟持すると共に当該コイル材を前記加工装置側へと搬送する一対の搬送ローラと、
　前記搬送方向における当該搬送ローラの下流側かつ前記出口ローラの上流側で前記コイル材をその表裏から互い違いに押圧することにより前記コイル材の巻き癖を矯正する複数の矯正ローラと、を有し、
　前記搬送方向における前記出口ローラの下流には、前記コイル材を下方から支持する１又は複数の支持ローラが配置されていると共に、前記支持ローラと前記コイル材との当接位置が前記搬送面よりも上方に位置することにより、前記コイル材を、前記出口ローラを通過した後に前記支持ローラによって前記搬送面よりも上方に向かって反るように搬送する、コイル材の搬送方法。 It is installed between a supply device that supplies a coil material in which a long processing material is coiled and a processing device that processes the coil material supplied from the supply device, and corrects the curl of the coil material. A coil material conveying method using a coil material straightening device,
The correction device
a pair of inlet rollers that sandwich the coil material conveyed from the supply device from the front and back;
a pair of exit rollers arranged downstream of the entrance roller in the conveying direction of the coil material and sandwiching the coil material from the front and back;
A pair of conveyers that sandwich the coil material from the front and back along a conveying surface that connects the passing surface of the coil material with the passage surface of the entrance roller and the passage surface of the exit roller and convey the coil material to the processing device side. Laura and
a plurality of correction rollers for correcting the curl of the coil material by alternately pressing the coil material from the front and back sides on the downstream side of the transport roller and the upstream side of the exit roller in the transport direction,
One or a plurality of support rollers for supporting the coil material from below are disposed downstream of the exit roller in the transport direction, and the position of contact between the support roller and the coil material is positioned relative to the transport surface. A method of conveying a coiled material, wherein the coiled material is conveyed so as to warp upward from the conveying surface by the support roller after passing the exit roller.
　本発明の更なる目的又はその他の特徴は、以下添付図面を参照して説明される好ましい実施形態によって明らかにされるであろう。 Further objects or other features of the present invention will be made clear by preferred embodiments described below with reference to the accompanying drawings.
　本発明の一態様によれば、バッファ部におけるコイル材の自重による折れ曲がりを効果的に防止して、コイル材に屈曲痕が生じるのを有効に防止することができる。 According to one aspect of the present invention, it is possible to effectively prevent the coil material from bending due to its own weight in the buffer portion, and effectively prevent the coil material from being bent.
図１は、本発明の実施形態に係るプレスシステムの全体構成図である。FIG. 1 is an overall configuration diagram of a press system according to an embodiment of the present invention. 図２は、図１に示すプレス装置の概略構成を示す斜視図である。FIG. 2 is a perspective view showing a schematic configuration of the pressing device shown in FIG. 1. FIG. 図３は、図１に示すレベラの概略構成を示す正面図である。3 is a front view showing a schematic configuration of the leveler shown in FIG. 1. FIG. 図４は、図１のプレスシステムにおける各装置の相互接続の様子を示すブロック図である。FIG. 4 is a block diagram showing how each device in the press system of FIG. 1 is interconnected.
　　［実施形態］
　以下、本発明の実施形態について図面を参照しつつ説明する。
  ＜プレスシステムＳ＞
　図１は、実施形態に係るプレスシステムＳの全体構成図である。図１には搬送方向及び上流、下流、上下方向も示す。このプレスシステムＳでは、アンコイラ１０、フィーダ２０、プレス装置（加工装置）３０をコイル材１２が供給される方向（搬送方向）に沿って上流側から下流側に向けて順に配置されている。また、アンコイラ１０とプレス装置３０との間にレベラ（コイル材矯正装置）４０も配置されている。本実施形態では、レベラ４０はアンコイラ１０とフィーダ２０との間に配置されている。ここで、「間」とは、コイル材１２の搬送方向に沿って一方を上流側、他方を下流側とする「間」を意味する。 [Embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<Press system S>
FIG. 1 is an overall configuration diagram of a press system S according to an embodiment. FIG. 1 also shows the conveying direction and the upstream, downstream, and vertical directions. In this press system S, an uncoiler 10, a feeder 20, and a press device (processing device) 30 are arranged in order from the upstream side to the downstream side along the direction in which the coiled material 12 is supplied (conveyance direction). A leveler (coil straightening device) 40 is also arranged between the uncoiler 10 and the press device 30 . In this embodiment, the leveler 40 is arranged between the uncoiler 10 and the feeder 20 . Here, "between" means "between" along the conveying direction of the coil material 12 with one side being the upstream side and the other side being the downstream side.
　アンコイラ１０、レベラ４０及びフィーダ２０は、プレス装置３０の加工動作に連動して動作する。なお、プレスシステムＳにおいて、レベラ４０がフィーダ２０の機能を有していれば、フィーダ２０が別途配置されなくてもよい。また、レベラ４０の搬送方向上流側又は下流側にコイル材１２の撓み（ループ）を制御するループテーブルが配置されていてもよいが、ここではループテーブルについての図示及び説明を省略する。 The uncoiler 10, leveler 40 and feeder 20 operate in conjunction with the processing operation of the press device 30. In addition, in the press system S, if the leveler 40 has the function of the feeder 20, the feeder 20 does not have to be arranged separately. A loop table for controlling the bending (loop) of the coil material 12 may be arranged upstream or downstream of the leveler 40 in the conveying direction, but illustration and description of the loop table are omitted here.
　　＜アンコイラ１０＞
　コイル材１２を保持する保持装置であるアンコイラ１０は、マンドレル１１、制御部１３、駆動部１４を有している。マンドレル１１には、プレス装置３０の加工対象であるコイル材１２が保持されている。コイル材１２は長尺の加工材料であってコイル状に巻回されたものであり、その内径部分がマンドレル１１によって保持される。制御部１３は、プレス装置３０による加工動作と連動するように駆動部１４によってマンドレル１１を回転させ、コイル材１２を巻きほぐしてその供給を行う。 <Uncoiler 10>
An uncoiler 10 that is a holding device for holding the coil material 12 has a mandrel 11 , a control section 13 and a drive section 14 . The mandrel 11 holds the coiled material 12 to be processed by the pressing device 30 . The coil material 12 is a long length of material wound into a coil, and the inner diameter portion thereof is held by the mandrel 11 . The control unit 13 rotates the mandrel 11 by the drive unit 14 so as to be interlocked with the processing operation by the press device 30, unwinds the coil material 12, and supplies it.
　　＜フィーダ２０＞
　フィーダ２０は、アンコイラ１０に保持されたコイル材１２をプレス装置３０に向けて搬送する搬送装置である。フィーダ２０は、下フィードローラ２１、上フィードローラ２２、モータ２３、制御部２６を有している。 <Feeder 20>
The feeder 20 is a conveying device that conveys the coil material 12 held by the uncoiler 10 toward the press device 30 . The feeder 20 has a lower feed roller 21 , an upper feed roller 22 , a motor 23 and a controller 26 .
　下フィードローラ２１は、フィーダ２０の固定フレーム（不図示）に回転可能に取り付けられている。上フィードローラ２２は、下フィードローラ２１と共にコイル材１２を挟持（ニップ）するローラであり、その挟持力（ニップ力）の調整が可能とされていて、下フィードローラ２１に対して上下方向に移動可能であり、かつ回転可能に取り付けられている。 The lower feed roller 21 is rotatably attached to a fixed frame (not shown) of the feeder 20. The upper feed roller 22 is a roller that pinches (nips) the coil material 12 together with the lower feed roller 21, and its pinching force (nip force) can be adjusted. It is movable and rotatably mounted.
　モータ２３は、下フィードローラ２１を回転させる。下フィードローラ２１の回転はギヤ等（不図示）の伝達手段によって上フィードローラ２２に伝達される。もっとも、上フィードローラ２２は、下フィードローラ２１の回転駆動によりコイル材１２が搬送される搬送力が上フィードローラ２２への摩擦力として伝達されることにより従動されるものであってもよい。これにより、下フィードローラ２１及び上フィードローラ２２は、コイル材１２を所定の送り長さでプレス装置３０に送り出す。ここで、送り長さとは、プレス装置３０での１回の加工に必要なコイル材１２の長さであり、フィーダ２０がプレス装置３０に搬送する１回分のコイル材１２の長さである。モータ２３は、例えばサーボモータであり、公知の制御方法によって制御部２６により制御される。 The motor 23 rotates the lower feed roller 21 . The rotation of the lower feed roller 21 is transmitted to the upper feed roller 22 by transmission means such as gears (not shown). However, the upper feed roller 22 may be driven by the conveying force of conveying the coiled material 12 due to the rotational drive of the lower feed roller 21 being transmitted to the upper feed roller 22 as a frictional force. As a result, the lower feed roller 21 and the upper feed roller 22 feed the coil material 12 to the press device 30 at a predetermined feed length. Here, the feed length is the length of the coiled material 12 required for one processing by the press device 30 , and is the length of the coiled material 12 conveyed to the press device 30 by the feeder 20 for one time. The motor 23 is, for example, a servomotor, and is controlled by the controller 26 by a known control method.
　なお、フィーダ２０は、図示しない入力部、表示部、記憶部を有してもよい。入力部を有することにより、フィーダ２０での搬送制御に必要な設定内容やパラメータ等を作業者が入力部から入力することができる。表示部を有することにより、上記の設定内容、パラメータや、フィーダの現在の動作状況等を表示部に表示することができる。記憶部を有することにより、上記の入力部から入力された設定内容やパラメータを記憶部に記憶したり、フィーダ２０の動作制御を実行するための制御プログラムを予め記憶部に記憶したりすることができ、また、上述の設定内容、パラメータ、制御プログラムを利用するための呼出し元の記憶部として利用することができる。 Note that the feeder 20 may have an input unit, display unit, and storage unit (not shown). By having the input section, the operator can input setting contents, parameters, and the like necessary for conveying control in the feeder 20 from the input section. By having the display section, it is possible to display the above-described setting contents, parameters, the current operation status of the feeder, and the like on the display section. By having the storage unit, it is possible to store the setting contents and parameters input from the input unit in the storage unit, and to store in advance the control program for executing the operation control of the feeder 20 in the storage unit. In addition, it can be used as a storage unit of a calling source for using the above-described setting contents, parameters, and control programs.
　　＜プレス装置３０＞
　図２は、実施形態に係るプレス装置３０の概略構成を示す斜視図である。このプレス装置３０は、例えば、一体型ストレートサイドフレーム型又はＣフレーム型のプレス装置３０である。また、プレス装置３０は、例えば、複数のステージで複数の加工を行う順送プレス加工（順送加工）を行う装置である。図２には、コイル材１２の搬送方向や搬送方向における上流（左）、下流（右）、上下方向、及び前後方向（正面、背面）を示している。プレス装置３０は、筐体３０２の内外に、駆動モータ３０４、伝達機構３０６、クランク軸３０８、コンロッド３１０、スライド３１２、ボルスタ３２２を有して構成される。また、プレス装置３０は、コントローラ３１４、記憶部３１５、表示部３１６、入力部３１８、を有している。更に、プレス装置３０は、センサ３２４、ロータリーエンコーダ３２５、ギブ３２６を有している。なお、順送加工はトランスファー・スタンピングともいい、それを構成するトランスファー・プレス・ツールは、それ自体で単一のプレス・ダイ（上型と下型）にすることも、連続したステーションに配置された複数のプレス・ダイにすることもできる。 <Press device 30>
FIG. 2 is a perspective view showing a schematic configuration of the press device 30 according to the embodiment. The press device 30 is, for example, an integrated straight-side frame type or C-frame type press device 30 . Further, the press device 30 is, for example, a device that performs progressive press processing (progressive processing) in which a plurality of processes are performed on a plurality of stages. FIG. 2 shows the conveying direction of the coil material 12, the upstream (left), the downstream (right) in the conveying direction, the vertical direction, and the front and rear directions (front and back). The press device 30 includes a drive motor 304 , a transmission mechanism 306 , a crankshaft 308 , a connecting rod 310 , a slide 312 and a bolster 322 inside and outside a housing 302 . The press device 30 also has a controller 314 , a storage section 315 , a display section 316 and an input section 318 . Furthermore, the press device 30 has a sensor 324 , a rotary encoder 325 and a gib 326 . Progressive processing is also called transfer stamping, and the transfer press tool that constitutes it can be a single press die (upper and lower dies) by itself, or can be arranged in a continuous station. There can also be multiple press dies.
　駆動モータ３０４は、例えばサーボ制御されるサーボモータであり、回転量及び回転方向を制御しつつ伝達機構３０６、クランク軸３０８、コンロッド３１０を介して後述する金型３０３を上下移動させるものである。伝達機構３０６は、例えばギヤやベルト等の伝達部材を有して構成され、駆動モータ３０４のモータ軸の回転をクランク軸３０８へと伝達するものである。駆動モータ３０４への制御信号はコントローラ３１４から送られるようになっている。 The drive motor 304 is, for example, a servo-controlled servomotor, which vertically moves the mold 303 to be described later via a transmission mechanism 306, a crankshaft 308, and a connecting rod 310 while controlling the amount and direction of rotation. The transmission mechanism 306 includes transmission members such as gears and belts, and transmits the rotation of the motor shaft of the drive motor 304 to the crankshaft 308 . Control signals to drive motor 304 are sent from controller 314 .
　クランク軸３０８及びコンロッド３１０は、伝達機構３０６により伝達されたモータ軸の回転移動を往復移動（本実施形態では、上下移動。）に変換するためのものである。モータ軸の回転によりクランク軸３０８が回転し、クランク軸３０８に一端近傍が連結されたコンロッド３１０にその回転が伝達されてコンロッド３１０が上下移動（昇降移動）するようになっている。 The crankshaft 308 and connecting rod 310 are for converting the rotational movement of the motor shaft transmitted by the transmission mechanism 306 into reciprocating movement (vertical movement in this embodiment). The rotation of the motor shaft causes the crankshaft 308 to rotate, and the rotation is transmitted to a connecting rod 310 having one end connected to the crankshaft 308 to move the connecting rod 310 up and down.
　また、クランク軸３０８には、クランク軸３０８の回転に連動して、オン信号又はオフ信号を出力するロータリーカムスイッチ（不図示）が設けられている。ロータリーカムスイッチは、例えばクランク軸３０８の回転が所定の角度となったとき、言い換えれば加工動作中の所定のタイミングとなったときに、オン信号又はオフ信号を出力する。ロータリーカムスイッチがオン信号（又はオフ信号）を出力するタイミングを、以下、出力タイミングという。コントローラ３１４は、ロータリーカムスイッチから出力される信号に基づいて、アンコイラ１０及びフィーダ２０と連動し、加工動作を行っている。 Also, the crankshaft 308 is provided with a rotary cam switch (not shown) that outputs an ON signal or an OFF signal in conjunction with the rotation of the crankshaft 308 . The rotary cam switch outputs an ON signal or an OFF signal when, for example, the rotation of the crankshaft 308 reaches a predetermined angle, in other words, when it reaches a predetermined timing during machining operation. The timing at which the rotary cam switch outputs the ON signal (or OFF signal) is hereinafter referred to as output timing. The controller 314 interlocks with the uncoiler 10 and the feeder 20 based on the signal output from the rotary cam switch to perform machining operations.
　コンロッド３１０の他端近傍にはスライド３１２が連結されている。コンロッド３１０の上下移動に伴いスライド３１２がギブ３２６に沿って上下移動するようになっている。プレス装置３００においては、スライド３１２と対向するようにボルスタ３２２が配置されている。スライド３１２のボルスタ３２２と対向する側の面（本実施形態では下面。）に金型３０３の一部としての上型３０３ａが装着される。ボルスタ３２２のスライド３１２と対向する側の面（本実施形態では上面。）に金型３０３の一部として、上型３０３ａと対になる下型３０３ｂが装着される。 A slide 312 is connected near the other end of the connecting rod 310 . As the connecting rod 310 moves up and down, the slide 312 moves up and down along the gib 326 . A bolster 322 is arranged to face the slide 312 in the press device 300 . An upper mold 303 a as a part of the mold 303 is attached to the surface of the slide 312 facing the bolster 322 (lower surface in this embodiment). A lower mold 303b that forms a pair with an upper mold 303a is mounted as a part of the mold 303 on the surface (upper surface in this embodiment) of the bolster 322 facing the slide 312 .
　上型３０３ａと下型３０３ｂとの間に加工の対象物としてのコイル材１２を配置し、上型３０３ａと下型３０３ｂとで押圧することにより、プレス装置３０によるコイル材１２に対するプレス加工が行われる。コイル材１２は、例えば図３中左（上流）側から右（下流）側に搬送され、以降、コイル材１２の搬送方向を左右方向ともいう。複数工程を有するプレス加工（例えば順送式の加工）においては、コイル材１２の搬送方向における上流から序盤の加工が行われ、コイル材１２の搬送方向における下流で終盤の加工が行われる。 The coil material 12 as an object to be processed is arranged between the upper die 303a and the lower die 303b, and is pressed by the upper die 303a and the lower die 303b. will be The coil material 12 is conveyed, for example, from the left (upstream) side to the right (downstream) side in FIG. In press working having multiple steps (for example, progressive processing), processing is performed from the upstream side in the conveying direction of the coil material 12 to the early stage, and processing is performed in the downstream side in the conveying direction of the coil material 12 in the final stage.
　詳しくは、コントローラ３１４により制御されて駆動モータ３０４が回転する。駆動モータ３０４の回転が伝達機構３０６、クランク軸３０８を介してコンロッド３１０へと伝達され、スライド３１２が上下移動する。スライド３１２の下方移動によって上型３０３ａと下型３０３ｂとが押圧され、コイル材１２のプレス加工が行われる。すなわち、プレス装置３００において、駆動モータ３０４、伝達機構３０６、クランク軸３０８、コンロッド３１０、スライド３１２がプレス部を構成する。伝達機構３０６には、クランク軸３０８の回転数を検知するための回転数検知手段であるロータリーエンコーダ３２５が設けられている。コントローラ３１４は、ロータリーエンコーダ３２５によりクランク軸の回転数を検知することで、スライド３１２の位置を検知することが可能である。 Specifically, the drive motor 304 rotates under the control of the controller 314 . Rotation of the drive motor 304 is transmitted to the connecting rod 310 via the transmission mechanism 306 and the crankshaft 308, and the slide 312 moves up and down. As the slide 312 moves downward, the upper die 303a and the lower die 303b are pressed, and the coil material 12 is pressed. That is, in the press device 300, the drive motor 304, the transmission mechanism 306, the crankshaft 308, the connecting rod 310, and the slide 312 constitute a press section. The transmission mechanism 306 is provided with a rotary encoder 325 which is rotation speed detection means for detecting the rotation speed of the crankshaft 308 . The controller 314 can detect the position of the slide 312 by detecting the rotation speed of the crankshaft with the rotary encoder 325 .
　加工の際の荷重を検知する荷重検知手段であるセンサ３２４は、プレス装置３０がコイル材１２にプレス加工を行う際に、コンロッド３１０に働く荷重を検知するためのセンサで、例えばロードセルである。センサ３２４は、例えば、筐体３０２に設置された歪ゲージであってもよい。センサ３２４は、コンロッド３１０のいずれかの位置（例えば、中央近傍位置）に設置されていてもよい。更に、センサ３２４は複数設置されていてもよく、例えば筐体３０２の左右の歪をそれぞれ検知し、検知した結果を加算してトータルの荷重としてもよい。なお、図２において、表示部３１６が配置されている側がプレス装置３００の前側である。 The sensor 324, which is load detecting means for detecting the load during processing, is a sensor for detecting the load acting on the connecting rod 310 when the press device 30 presses the coil material 12, and is, for example, a load cell. Sensors 324 may be, for example, strain gauges mounted on housing 302 . Sensor 324 may be installed at any position on connecting rod 310 (for example, near the center). Furthermore, a plurality of sensors 324 may be installed. For example, the strain on the left and right sides of the housing 302 may be detected respectively, and the detected results may be added to obtain the total load. 2, the side where the display unit 316 is arranged is the front side of the press device 300. As shown in FIG.
　コントローラ３１４は、記憶部３１５に記憶されている各種プログラムに従ってプレス装置３０を制御する。表示部３１６は、プレス装置３０の状態を示すデータを表示する。入力部３１８は、プレス装置３０を操作するために必要なデータを入力するために用いられる。コントローラ３１４は、アンコイラ１０、レベラ４０、フィーダ２０、プレス装置３０が連動して加工を行うように制御している（図４参照）。順送加工を行うプレス装置３０では、コントローラ３１４は、１つの加工ステージでの加工が終了すると、フィーダ２０によりコイル材１２を次の加工ステージに所定の送り速度で所定の送り長さだけ搬送するように制御する。 The controller 314 controls the press device 30 according to various programs stored in the storage section 315 . A display unit 316 displays data indicating the state of the press device 30 . The input unit 318 is used to input data necessary for operating the press device 30 . The controller 314 controls the uncoiler 10, the leveler 40, the feeder 20, and the press device 30 so as to work together (see FIG. 4). In the press device 30 that performs progressive processing, when processing in one processing stage is completed, the controller 314 causes the feeder 20 to convey the coil material 12 to the next processing stage at a predetermined feed rate by a predetermined feed length. to control.
　　＜レベラ４０＞
　図３は、実施形態に係るレベラ４０の概略構成図である。図３では、レベラ４０を正面、すなわちコイル材１２の搬送方向における上流側を左側に、下流側を右側に矢視している。レベラ４０は、アンコイラ１０とプレス装置３０との間に配置されて使用される。レベラ３０は、アンコイラ１０から供給されたコイル材１２の巻き癖を矯正するための装置である。レベラ４０は、一対の入口ローラ４１、一対の出口ローラ４２、本体部４０ａ、ベース部４０ｂを有して大略構成される。本体部４０ａは、一対の搬送ローラ４３、複数の矯正ローラ４４、駆動モータ４５、制御部４６を有している。出口ローラの下流側には、１又は複数の支持ローラ４７が配置されている。 <Leveler 40>
FIG. 3 is a schematic configuration diagram of the leveler 40 according to the embodiment. 3, the leveler 40 is viewed from the front, that is, the upstream side in the conveying direction of the coil material 12 is on the left side, and the downstream side is on the right side. The leveler 40 is arranged and used between the uncoiler 10 and the press device 30 . The leveler 30 is a device for straightening the curl of the coil material 12 supplied from the uncoiler 10 . The leveler 40 generally includes a pair of inlet rollers 41, a pair of outlet rollers 42, a body portion 40a, and a base portion 40b. The body portion 40 a has a pair of conveying rollers 43 , a plurality of correction rollers 44 , a driving motor 45 and a control portion 46 . One or more support rollers 47 are positioned downstream of the exit rollers.
　入口ローラ４１は、供給されたコイル材１２をレベラ４０において最初にその表裏から挟持する一対のローラであり、搬送ローラ４３より上流側（すなわち、本体部４０ａより上流側。）に配置される。入口ローラ４１は、上下方向から所定の挟持力（ニップ力）でコイル材１２を挟持し、コイル材１２が搬送されるのに伴って回転する。入口ローラ４１は、駆動源により駆動されるローラでなくコイル材１２の搬送に伴って連れ回りする従動ローラである。なお、コイル材１２の材料に合わせて所定の挟持力（ニップ力）を発揮するように、入口ローラ４１のうちの下側ローラに対する上側ローラの高さ位置を調整をした上で、上側ローラの高さ位置をボルト等の固定部材により固定するものであってもよい。 The inlet rollers 41 are a pair of rollers that first pinch the supplied coil material 12 from the front and back in the leveler 40, and are arranged upstream from the conveying rollers 43 (that is, upstream from the main body 40a). The inlet rollers 41 sandwich the coil material 12 with a predetermined gripping force (nipping force) from above and below, and rotate as the coil material 12 is conveyed. The entrance roller 41 is not a roller driven by a drive source, but a driven roller that rotates with the coil material 12 being conveyed. In addition, after adjusting the height position of the upper roller of the inlet roller 41 with respect to the lower roller so as to exert a predetermined holding force (nip force) according to the material of the coil material 12, the upper roller The height position may be fixed by a fixing member such as a bolt.
　出口ローラ４２は、搬送ローラ４３及び後述する矯正ローラ４４より下流側（すなわち、本体部４０ａより下流側。）に配置される一対のローラである。出口ローラ４２も入口ローラ４１と同様に、上下方向から所定の挟持力（ニップ力）でコイル材１２をその表裏から挟持し、コイル材１２が搬送されるのに伴って回転する。出口ローラ４２は、駆動源により駆動されるローラでなくコイル材１２の搬送に伴って連れ回りする従動ローラである。なお、入口ローラ４１の場合と同様に、コイル材１２の材料に合わせて所定の挟持力（ニップ力）を発揮するように、出口ローラ４２のうちの下側ローラに対する上側ローラの高さ位置を調整をした上で、上側ローラの高さ位置をボルト等の固定部材により固定するものであってもよい。また、入口ローラ４１を通過するコイル材１２の通過面と出口ローラ４２を通過するコイル材１２の通過面とを結ぶ面をコイル材１２の搬送面Ｐと定義する。 The exit rollers 42 are a pair of rollers arranged downstream from the conveying roller 43 and a correction roller 44 (that is, downstream from the main body portion 40a). Similarly to the entrance roller 41, the exit roller 42 also pinches the coil material 12 from the front and back with a predetermined pinching force (nip force) from above and below, and rotates as the coil material 12 is conveyed. The exit roller 42 is not a roller driven by a drive source, but a driven roller that rotates along with the conveying of the coil material 12 . As in the case of the inlet roller 41, the height position of the upper roller of the outlet roller 42 with respect to the lower roller is adjusted so as to exert a predetermined holding force (nip force) according to the material of the coil material 12. After adjustment, the height position of the upper roller may be fixed by a fixing member such as a bolt. A conveying plane P of the coil material 12 is defined as a plane connecting the passage plane of the coil material 12 passing through the entrance roller 41 and the passage plane of the coil material 12 passing through the exit roller 42 .
　なお、コイル材１２の厚さを考慮すると、コイル材１２が入口ローラ４１や出口ローラ４２を通過する通過面にはコイル材１２の上側面Ｐｔ（図３参照）を含む平面とコイル材１２の下側面Ｐｂ（図３参照）を含む平面とを概念することができる。ここにおける搬送面Ｐはコイル材１２の下側面Ｐｂが入口ローラ４１及び出口ローラ４２を通過する通過面及びその延長面を意味する。 Considering the thickness of the coil material 12, the plane including the upper side surface Pt (see FIG. 3) of the coil material 12 and the coil material 12 passing through the entrance roller 41 and the exit roller 42 should be A plane containing the lower surface Pb (see FIG. 3) can be conceptualized. The conveying plane P here means a passing plane through which the lower side surface Pb of the coil material 12 passes through the entrance roller 41 and the exit roller 42 and its extension plane.
　本体部４０ａは、図１及び図３に示すように、ベース部４０ｂに対して回転軸Ｑを中心に矢印α方向に回転及び固定が可能とされている。そのため、コイル材１２の搬送面Ｐを図３に示すように略水平面と平行にすることも可能であるし、図１に示すように傾斜させることも可能である。搬送面Ｐを傾斜させることにより、搬送方向における上流側の高さと下流側の高さが異なるように配置することができ、例えば、図１では、コイル材１２の搬送方向における上流側が低い位置に、下流側が高い位置になるように配置している。なお、ベース部４０ｂは、本体部４０ａを回転可能に固定する台座であり、床面に設置される部分である。 As shown in FIGS. 1 and 3, the body part 40a can be rotated and fixed in the direction of the arrow α around the rotation axis Q with respect to the base part 40b. Therefore, the conveying surface P of the coil material 12 can be parallel to the substantially horizontal plane as shown in FIG. 3, or can be inclined as shown in FIG. By inclining the conveying surface P, it is possible to dispose so that the height of the upstream side in the conveying direction is different from the height of the downstream side in the conveying direction. For example, in FIG. , are arranged so that the downstream side is at a higher position. The base portion 40b is a pedestal that rotatably fixes the main body portion 40a, and is a portion that is installed on the floor surface.
　搬送ローラ４３は、搬送面Ｐに沿ってコイル材１２をその表裏から挟持（ニップ）する一対のローラである。搬送ローラ４３は、その一方が駆動モータ４５に接続されており、駆動モータ４５によって回転駆動され、その周面に当接するコイル材１２を搬送方向に沿ってプレス装置３０へ向けて搬送する機能を有する。搬送ローラ４３の他方は、駆動側の動力がギア等の伝達手段により伝達されて搬送ローラに対して所定の挟持力（ニップ力）でコイル材１２を挟持する。もっとも、搬送ローラ４３の他方は、コイル材の搬送と共に連れ回りをするように配置された従動ローラであってもよい。従動側搬送ローラ４３による駆動側の搬送ローラ４３に対する挟持力（ニップ力）は、例えば、コイル材１２の厚さや材質が変更になっても滑ることなく適正に搬送することができるよう、調整可能とされていてもよい。 The transport rollers 43 are a pair of rollers that sandwich (nip) the coil material 12 along the transport surface P from the front and back. The conveying roller 43 has one end connected to a driving motor 45, and is driven to rotate by the driving motor 45. The conveying roller 43 has a function of conveying the coil material 12 in contact with the peripheral surface thereof toward the press device 30 along the conveying direction. have. The other of the conveying rollers 43 nips the coil material 12 with a predetermined nipping force (nipping force) with respect to the conveying roller 43 with the drive-side power transmitted by a transmission means such as a gear. However, the other of the conveying rollers 43 may be a driven roller arranged to rotate together with the conveying of the coil material. The clamping force (nip force) of the driven-side transport roller 43 to the driving-side transport roller 43 can be adjusted so that, for example, even if the thickness or material of the coil material 12 is changed, the coil material 12 can be transported properly without slipping. It may be said that
　搬送ローラ４３の搬送面、すなわち、搬送ローラ４３におけるコイル材１２の通過面は、搬送面Ｐと同一面内であることが好ましく、本実施形態では、これらは同一面内である。また、駆動モータ４５による搬送ローラ４３の駆動は、制御部４６により制御される。制御部４６は、図４に示すように、コントローラ３１４と接続されており、プレス装置３０によるコイル材１２への加工、アンコイラ１０によるコイル材１２の供給、フィーダ２０によるコイル材１２の搬送と協調する。 The conveying surface of the conveying roller 43, that is, the passage surface of the coil material 12 on the conveying roller 43 is preferably in the same plane as the conveying surface P, and in this embodiment, they are in the same plane. Further, driving of the conveying rollers 43 by the drive motor 45 is controlled by the controller 46 . As shown in FIG. 4, the control unit 46 is connected to a controller 314, and cooperates with the processing of the coiled material 12 by the press device 30, the supply of the coiled material 12 by the uncoiler 10, and the conveyance of the coiled material 12 by the feeder 20. do.
　矯正ローラ４４は、搬送ローラ４３と共に本体部４０ａ内に配置されている。矯正ローラ４４は、搬送ローラ４３の搬送方向における下流側に配置され、コイル材１２をその表裏から互い違いに押圧することによりコイル材１２の巻き癖を矯正する複数のローラである。本実施形態では、図３に示すように、搬送面Ｐに対して上側に４個、下側に４個の矯正ローラ４４が配置されているが、矯正ローラ４４は複数であればよく個数について特に限定はない。矯正ローラ４４は、上側のローラと下側のローラとが互い違い、すなわち入れ子状に配置されている。上側の矯正ローラ４４の最下面がコイル材１２の上側面Ｐｔを下方に超えており、下側の矯正ローラ４４の最上面がコイル材１２の下側面Ｐｂ、すなわち搬送面Ｐを上方に超えていることにより、これらの矯正ローラ４４はコイル材１２に対して適切な応力を加えることができる。その応力がコイル材１２に塑性変形を促すことにより、矯正ローラ４４を通過後のコイル材１２は巻き癖が除去されるようになっている。 The correction roller 44 is arranged inside the main body 40a together with the conveying roller 43. The correction rollers 44 are a plurality of rollers that are arranged on the downstream side of the conveying roller 43 in the conveying direction, and correct the curl of the coil material 12 by alternately pressing the coil material 12 from its front and back sides. In this embodiment, as shown in FIG. 3, four correction rollers 44 are arranged on the upper side of the conveying plane P and four correction rollers 44 are arranged on the lower side. There is no particular limitation. The correcting rollers 44 are arranged such that upper rollers and lower rollers are staggered, that is, nested. The lowermost surface of the upper correction roller 44 extends below the upper side surface Pt of the coil material 12, and the uppermost surface of the lower correction roller 44 extends beyond the lower surface Pb of the coil material 12, that is, the conveying surface P. These straightening rollers 44 can apply appropriate stress to the coiled material 12 by virtue of their presence. The stress promotes plastic deformation of the coil material 12, so that the curl of the coil material 12 after passing through the correction rollers 44 is removed.
　支持ローラ４７は、出口ローラ４２の下流側に配置される１又は複数のローラであり、出口ローラ４２を通過した後のコイル材１２を下方から支持する機能を有する。本実施形態では、図３に示すように、２つの支持ローラ４７ａ、４７ｂが配置されている。支持ローラ４７ａ、４７ｂのコイル材１２との当接位置、すなわち、支持ローラ４７ａ、４７ｂがコイル材１２の下側面Ｐｂを支持している位置は、搬送面Ｐより上方に位置している。特に、図３に示すように、搬送方向における上流側の支持ローラ４７ａよりも下流側の支持ローラ４７ｂの方がコイル材１２との当接位置がより上方となるように配置すれば、レベラ４０を通過した後のコイル材１２を上方に向けて反るように搬送することができる。 The support roller 47 is one or a plurality of rollers arranged on the downstream side of the exit roller 42 and has a function of supporting the coil material 12 from below after passing through the exit roller 42 . In this embodiment, as shown in FIG. 3, two support rollers 47a and 47b are arranged. The contact positions of the support rollers 47a and 47b with the coil material 12, that is, the positions where the support rollers 47a and 47b support the lower side surface Pb of the coil material 12 are located above the conveying plane P. In particular, as shown in FIG. 3, if the support roller 47b on the downstream side in the conveying direction is arranged so that the contact position with the coil material 12 is higher than the support roller 47a on the upstream side in the conveying direction, the leveler 40 After passing through the coil material 12, the coil material 12 can be conveyed so as to warp upward.
　これにより、レベラ４０とプレス装置３０との間で、上方に凸となるように湾曲したコイル材１２のバッファ部Ｂを形成することができる。また、支持ローラ４７を通過した後のコイル材１２が斜め上方に向けて進行するので、コイル材１２が自重により折れ曲がって下方に垂れてしまったり、コイル材１２に折れ曲がりによる屈曲痕が生じてしまったりするのを防止することができる。 As a result, between the leveler 40 and the press device 30, the buffer portion B of the coil material 12 that is curved upward can be formed. In addition, since the coil material 12 after passing the support roller 47 advances obliquely upward, the coil material 12 may bend due to its own weight and hang downward, or the coil material 12 may have a bend mark due to the bending. It can prevent you from getting stuck.
　この効果は、図１に示すように搬送面Ｐを傾斜させたときにより顕著な効果として現れる。図１に示すように、搬送面Ｐが搬送方向における上流側から下流側に向けて高くなるように傾斜すれば、コイル材１２は斜め上方に向けて搬送面Ｐに沿って進行する。更に支持ローラ４７により、搬送面Ｐよりも更に上方（ここでいう上方は、搬送面Ｐに直交する方向における上方を意味する。）に反らせれば、支持ローラ４７を通過後のコイル材１２はより急角度で斜め上方に進行することとなる。 This effect appears as a more pronounced effect when the transport surface P is inclined as shown in FIG. As shown in FIG. 1, if the conveying surface P is inclined so as to become higher from the upstream side to the downstream side in the conveying direction, the coil material 12 advances along the conveying surface P obliquely upward. Further, if the support rollers 47 are used to warp the coil material 12 further upward than the conveying plane P (upward here means upward in the direction orthogonal to the conveying plane P), the coil material 12 after passing the support rollers 47 It will advance diagonally upward at a steeper angle.
　なお、図１に示すように、搬送方向における上流側から下流側に向けて搬送面Ｐが高くなるように傾斜させたときの支持ローラ４７とコイル材１２との当接位置も、搬送面Ｐよりも上方に位置している。ここで、「搬送面Ｐよりも上方」とは、搬送面Ｐから見て支持ローラ４７が配置されていない側に向かう方向を意味する。 As shown in FIG. 1, the contact position between the support roller 47 and the coil material 12 when the conveying surface P is inclined from the upstream side toward the downstream side in the conveying direction is also the same as the conveying surface P located above. Here, "above the transport plane P" means a direction toward the side where the support rollers 47 are not arranged when viewed from the transport plane P. As shown in FIG.
　そうすると、プレス装置３０に至るまでに大きな上向き凸のバッファ部（湾曲部）Ｂを形成することができる。それにより、コイル材１２の自重による折れ曲がりや屈曲痕の発生を防止することができる。コイル材１２を急角度で斜め上方に進行させることで、剛性の低い材料や厚さの薄い材料によるコイル材１２であっても、折れ曲がりや屈曲痕の発生は有効に防止し得る。ただし、図１は、搬送面Ｐの傾斜を急角度に設定しているので、支持ローラ４７の搬送面Ｐからの突出量が僅かである場合について図示している。 Then, a large upward convex buffer portion (curved portion) B can be formed up to the press device 30 . As a result, it is possible to prevent the coil material 12 from being bent or bent due to its own weight. By advancing the coil material 12 obliquely upward at a steep angle, even if the coil material 12 is made of a material with low rigidity or thin thickness, it is possible to effectively prevent the occurrence of bending and bending marks. However, FIG. 1 illustrates a case where the support roller 47 protrudes slightly from the conveying surface P because the inclination of the conveying surface P is set at a steep angle.
　複数の支持ローラ４７ａ、４７ｂは、各々縦プレート２ａ、２ｂに取り付けられ、縦プレート２ａ、２ｂは横プレート３に上下スライド可能に取り付けられている。これにより、支持ローラ４７ａ、４７ｂはそれぞれ独立して上下方向（矢印Ｙ方向）に位置調整が可能とされ、搬送面Ｐからの突出量が調整可能とされている。ただし、支持ローラ４７ａ、４７ｂの上下位置の調整範囲は、各ローラ４７ａ、４７ｂの最上面が搬送面Ｐよりも上方の位置である範囲に限定されることが好ましい。支持ローラ４７ａ、４７ｂの最上面が搬送面Ｐよりも上方であれば、支持ローラ４７ａ、４７ｂとコイル材１２との当接位置が搬送面Ｐよりも上方となる。 The plurality of support rollers 47a, 47b are attached to the vertical plates 2a, 2b, respectively, and the vertical plates 2a, 2b are attached to the horizontal plate 3 so as to be vertically slidable. As a result, the support rollers 47a and 47b can be independently adjusted in the vertical direction (direction of arrow Y), and the amount of protrusion from the conveying surface P can be adjusted. However, the adjustment range of the vertical positions of the support rollers 47a and 47b is preferably limited to a range in which the uppermost surfaces of the rollers 47a and 47b are positioned above the conveying plane P. If the uppermost surfaces of the support rollers 47a and 47b are above the transport plane P, the contact positions between the support rollers 47a and 47b and the coil material 12 are above the transport plane P.
　また、図３に示すように、横プレート３は、２枚の横プレート３ａ、３ｂにより構成されてもよい。このとき、出口ローラ４２の取付プレート４に対して横プレート３ａが搬送方向に沿った方向（矢印Ｘ方向）にスライド可能であり、横プレート３ａに対して横プレート３ｂが搬送方向に沿った方向（矢印Ｘ方向）にスライド可能であってもよい。横プレート３ａに縦プレート２ａが取り付けられていれば、出口ローラ４２と支持ローラ４７ａとの矢印Ｙ方向に沿った間隔（第１間隔）が調整可能となる。また、横プレート３ｂに縦プレート２ｂが取り付けられていれば、支持ローラ４７ａと支持ローラ４７ｂとの矢印Ｙ方向に沿った間隔（第２間隔）が調整可能となる。 Further, as shown in FIG. 3, the horizontal plate 3 may be composed of two horizontal plates 3a and 3b. At this time, the horizontal plate 3a is slidable in the direction (arrow X direction) along the conveying direction with respect to the mounting plate 4 of the exit roller 42, and the horizontal plate 3b is slidable in the direction along the conveying direction with respect to the horizontal plate 3a. It may be slidable (in the direction of the arrow X). If the vertical plate 2a is attached to the horizontal plate 3a, the interval (first interval) between the exit roller 42 and the support roller 47a along the arrow Y direction can be adjusted. Further, if the vertical plate 2b is attached to the horizontal plate 3b, the interval (second interval) between the support rollers 47a and 47b along the arrow Y direction can be adjusted.
　支持ローラ４７が矢印Ｙ方向に沿って位置調整可能であり、その搬送面Ｐから突出量が調整可能であれば、種々のコイル材１２に対して、折れ曲がりや屈曲痕の発生を防止しつつ、適切なバッファ部Ｂを形成することができる。また、支持ローラ４７と出口ローラ４２との矢印Ｘ方向に沿った第１間隔や、支持ローラ４７が複数（４７ａ、４７ｂ）である場合の支持ローラ４７同士の矢印Ｘ方向に沿った第２間隔が調整可能であれば、一層、種々のコイル材１２に対して、折れ曲がりや屈曲痕の発生を防止しつつ、適切なバッファ部Ｂを形成することができる。 If the position of the support roller 47 can be adjusted along the direction of the arrow Y, and the amount of protrusion from the conveying surface P can be adjusted, various coil materials 12 can be prevented from being bent or having bent marks. A suitable buffer portion B can be formed. Also, a first distance between the support roller 47 and the exit roller 42 along the arrow X direction, and a second distance between the support rollers 47 along the arrow X direction when there are a plurality of support rollers 47 (47a, 47b) can be adjusted, it is possible to form an appropriate buffer portion B for various coil materials 12 while preventing the occurrence of bending and bending marks.
　なお、図４は、このプレスシステムＳにおける各装置の相互接続の様子を示すブロック図である。図４に示すように、アンコイラ１０、レベラ４０、フィーダ２０、プレス装置３０は、相互に接続されている。各々の制御部１３、４６、２６は、コントローラ３１４と接続され、コントローラ３１４からの指示に基づき、各装置１０、４０、２０、３０が協調的に制御されるようになっている。 FIG. 4 is a block diagram showing how each device in this press system S is interconnected. As shown in FIG. 4, the uncoiler 10, leveler 40, feeder 20 and press device 30 are interconnected. Each controller 13 , 46 , 26 is connected to a controller 314 so that the devices 10 , 40 , 20 , 30 are cooperatively controlled based on instructions from the controller 314 .
　アンコイラ１０から供給されるコイル材１２がレベラ４０を経由してバッファ部Ｂへと至る。その後、フィーダ２０を経由してプレス装置３０へと搬送される。プレス装置３０でのコイル材１２の加工に際して、フィーダ２０は、加工に必要な送り長さ分のコイル材１２を間欠的に搬送する。バッファ部Ｂには、例えば図示しないセンサが配置され、バッファ部Ｂにおけるコイル材の余剰長さが検知される。余剰長さが一定の下限長さ以下になると、アンコイラ１０及びレベラ４０が駆動されて（又は高速搬送となり）、バッファ部Ｂにおけるコイル材１２が補充される。バッファ部Ｂにおける余剰長さが一定の上限長さ以上になるとアンコイラ１０及びレベラ４０の駆動が停止されて（又は低速搬送となり）、バッファ部Ｂへのコイル材１２の補充が停止される。 The coil material 12 supplied from the uncoiler 10 reaches the buffer section B via the leveler 40. After that, it is conveyed to the pressing device 30 via the feeder 20 . When the coiled material 12 is processed by the press device 30, the feeder 20 intermittently conveys the coiled material 12 for a feed length necessary for processing. For example, a sensor (not shown) is arranged in the buffer portion B to detect the surplus length of the coil material in the buffer portion B. As shown in FIG. When the surplus length becomes equal to or less than a certain lower limit length, the uncoiler 10 and the leveler 40 are driven (or high-speed transport is performed), and the coil material 12 in the buffer section B is replenished. When the surplus length in the buffer section B exceeds a certain upper limit length, the uncoiler 10 and the leveler 40 are stopped (or transported at a low speed), and the replenishment of the coil material 12 to the buffer section B is stopped.
　以上、本発明の実施形態を説明したが、本発明はこれに限定されることなく、その要旨の範囲内で様々な変形や変更が可能である。 Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications and changes are possible within the scope of the gist.
Ｂ：バッファ部                         Ｐ：搬送面
Ｐｔ：上側面                           Ｐｂ：下側面
Ｑ：回転軸                              Ｓ：プレスシステム
２ａ、２ｂ：縦プレート                ３、３ａ、３ｂ：横プレート
４：取付プレート                       １０：アンコイラ
１１：マンドレル                       １２：コイル材
１３：制御部                           １４：駆動部
２０：フィーダ                         ２１：下フィードローラ
２２：上フィードローラ                ２３：モータ
２６：制御部                           ３０：プレス装置（加工装置）
４０：レベラ（コイル材矯正装置）     ４１：入口ローラ
４２：出口ローラ                       ４０ａ：本体部
４０ｂ：ベース部                       ４３：搬送ローラ
４４：矯正ローラ                       ４５：駆動モータ
４６：制御部                           ４７：支持ローラ
３０２：筐体                           ３０３：金型
３０３ａ：上型                         ３０３ｂ：下型
３０４：駆動モータ                     ３０６：伝達機構
３０８：クランク軸                     ３１０：コンロッド
３１２：スライド                       ３１４：コントローラ
３１５：記憶部                         ３１６：表示部
３１８：入力部                         ３２２：ボルスタ
３２４：センサ                         ３２５：ロータリーエンコーダ
３２６：ギブ B: Buffer part P: Conveying surface Pt: Upper surface Pb: Lower surface Q: Rotating shaft S: Press system 2a, 2b: Vertical plates 3, 3a, 3b: Horizontal plate 4: Mounting plate 10: Uncoiler 11: Mandrel 12: Coil material 13: control unit 14: drive unit 20: feeder 21: lower feed roller 22: upper feed roller 23: motor 26: control unit 30: press device (processing device)
40: Leveler (coil material straightening device) 41: Entrance roller 42: Exit roller 40a: Body part 40b: Base part 43: Conveyance roller 44: Straightening roller 45: Drive motor 46: Control part 47: Support roller 302: Case 303 : Die 303a: Upper die 303b: Lower die 304: Drive motor 306: Transmission mechanism 308: Crankshaft 310: Connecting rod 312: Slide 314: Controller 315: Storage unit 316: Display unit 318: Input unit 322: Bolster 324: Sensor 325: Rotary encoder 326: Gib

Claims (5)

  1. 　長尺の加工材料がコイル状とされたコイル材を供給する供給装置と、当該供給装置から供給された前記コイル材を加工する加工装置との間に設置され、前記コイル材の巻き癖を矯正するコイル材矯正装置であって、
    　前記供給装置から搬送された前記コイル材をその表裏から挟持する一対の入口ローラと、
    　前記コイル材の搬送方向における当該入口ローラの下流側に配置されて前記コイル材をその表裏から挟持する一対の出口ローラと、
    　前記入口ローラと前記出口ローラとの間に配置される本体部と、を有し、
    　前記本体部は、
    　前記コイル材の前記入口ローラにおける通過面と前記出口ローラにおける通過面とを結ぶ搬送面に沿って前記コイル材をその表裏から挟持すると共に当該コイル材を前記加工装置側へと搬送する一対の搬送ローラと、
    　前記搬送方向における当該搬送ローラの下流側で前記コイル材をその表裏から互い違いに押圧することにより前記コイル材の巻き癖を矯正する複数の矯正ローラと、を有し、
    　前記搬送方向における前記出口ローラの下流には、前記コイル材を下方から支持する１又は複数の支持ローラが配置されており、
    　前記支持ローラと前記コイル材との当接位置が前記搬送面よりも上方に位置している、コイル材矯正装置。     It is installed between a supply device that supplies a coil material in which a long processing material is coiled and a processing device that processes the coil material supplied from the supply device, and corrects the curl of the coil material. A coil material straightening device for
    a pair of inlet rollers that sandwich the coil material conveyed from the supply device from the front and back;
    a pair of exit rollers arranged downstream of the entrance roller in the conveying direction of the coil material and sandwiching the coil material from the front and back;
    a body disposed between the entrance roller and the exit roller;
    The main body is
    A pair of conveyers that sandwich the coil material from the front and back along a conveying surface that connects the passing surface of the coil material with the passage surface of the entrance roller and the passage surface of the exit roller and convey the coil material to the processing device side. Laura and
    a plurality of correction rollers for correcting the curl of the coil material by alternately pressing the coil material from its front and back sides on the downstream side of the transport roller in the transport direction;
    One or more support rollers for supporting the coil material from below are disposed downstream of the exit roller in the conveying direction,
    A coil material correcting device, wherein a contact position between the support roller and the coil material is located above the conveying surface.
  2. 　前記支持ローラが、前記当接位置が前記搬送面よりも上方に位置する範囲内で、上下方向に位置調整可能とされている、請求項１に記載のコイル材矯正装置。 The coil material straightening device according to claim 1, wherein the position of the support roller can be adjusted in the vertical direction within a range in which the contact position is located above the conveying surface.
  3. 　前記搬送面に沿った方向における前記支持ローラと前記出口ローラとの間隔である第１間隔が調整可能とされ、更に、前記支持ローラが複数の場合に、前記搬送面に沿った方向における複数の前記支持ローラ同士の間隔である第２間隔が調整可能とされている、請求項１又は請求項２に記載のコイル材矯正装置。 A first distance, which is a distance between the support roller and the exit roller in the direction along the conveying surface, is adjustable. 3. The coil material straightening device according to claim 1, wherein a second interval, which is the interval between said support rollers, is adjustable.
  4. 　前記コイル材の前記搬送方向における上流側の高さと下流側の高さとが異なる高さとなるように、前記搬送面が傾斜可能とされている、請求項１から請求項３のうちいずれか１項に記載のコイル材矯正装置。 4. Any one of claims 1 to 3, wherein the conveying surface can be inclined such that the height of the coil material on the upstream side and the height on the downstream side thereof in the conveying direction are different. The coil material straightening device according to 1.
  5. 　長尺の加工材料がコイル状とされたコイル材を供給する供給装置と、当該供給装置から供給された前記コイル材を加工する加工装置との間に設置され、前記コイル材の巻き癖を矯正するコイル材矯正装置を用いたコイル材の搬送方法であって、
    　前記コイル材矯正装置は、
    　前記供給装置から搬送された前記コイル材をその表裏から挟持する一対の入口ローラと、
    　前記コイル材の搬送方向における当該入口ローラの下流側に配置されて前記コイル材をその表裏から挟持する一対の出口ローラと、
    　前記コイル材の前記入口ローラにおける通過面と前記出口ローラにおける通過面とを結ぶ搬送面に沿って前記コイル材をその表裏から挟持すると共に当該コイル材を前記加工装置側へと搬送する一対の搬送ローラと、
    　前記搬送方向における当該搬送ローラの下流側かつ前記出口ローラの上流側で前記コイル材をその表裏から互い違いに押圧することにより前記コイル材の巻き癖を矯正する複数の矯正ローラと、を有し、
    　前記搬送方向における前記出口ローラの下流には、前記コイル材を下方から支持する１又は複数の支持ローラが配置されていると共に、前記支持ローラと前記コイル材との当接位置が前記搬送面よりも上方に位置することにより、前記コイル材を、前記出口ローラを通過した後に前記支持ローラによって前記搬送面よりも上方に向かって反るように搬送する、コイル材の搬送方法。     It is installed between a supply device that supplies a coil material in which a long processing material is coiled and a processing device that processes the coil material supplied from the supply device, and corrects the curl of the coil material. A coil material conveying method using a coil material straightening device,
    The coil material straightening device is
    a pair of inlet rollers that sandwich the coil material conveyed from the supply device from the front and back;
    a pair of exit rollers arranged downstream of the entrance roller in the conveying direction of the coil material and sandwiching the coil material from the front and back;
    A pair of conveyers that sandwich the coil material from the front and back along a conveying surface that connects the passing surface of the coil material with the passage surface of the entrance roller and the passage surface of the exit roller and convey the coil material to the processing device side. Laura and
    a plurality of correction rollers for correcting the curl of the coil material by alternately pressing the coil material from the front and back sides on the downstream side of the transport roller and the upstream side of the exit roller in the transport direction,
    One or a plurality of support rollers for supporting the coil material from below are disposed downstream of the exit roller in the transport direction, and the position of contact between the support roller and the coil material is positioned relative to the transport surface. A method of conveying a coiled material, wherein the coiled material is conveyed so as to warp upward from the conveying surface by the support roller after passing the exit roller.
PCT/JP2022/037386 2021-10-11 2022-10-06 Coil material correction device and coil material conveyance method WO2023063201A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101621U (en) * 1985-12-13 1987-06-29
JPS63102762U (en) * 1986-12-18 1988-07-04
JPH03174917A (en) * 1989-09-18 1991-07-30 Hitachi Ltd Correcting device, correcting method, corrected sheet material and correcting system
JP2004142876A (en) * 2002-10-24 2004-05-20 Sankyo Mfg Co Ltd Coil material supply device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101621U (en) * 1985-12-13 1987-06-29
JPS63102762U (en) * 1986-12-18 1988-07-04
JPH03174917A (en) * 1989-09-18 1991-07-30 Hitachi Ltd Correcting device, correcting method, corrected sheet material and correcting system
JP2004142876A (en) * 2002-10-24 2004-05-20 Sankyo Mfg Co Ltd Coil material supply device

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