JP2005279771A - Uncoiler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a coil material from coming loose when uncoiled. <P>SOLUTION: A coil holder 18 and a delivery mechanism 20 are arranged around the mandrel 14 to be installed on the coil material 26, with the delivery mechanism 20 connected to a post 34 arranged freely rockably through an oscillation shaft 36, wherein this delivery mechanism 20 is arranged freely movably forward and backward relative to the mandrel 14. When the coil material 26 is uncoiled, it is simultaneously pressurized in the outer circumferential face with the coil holder 18. The uncoiled tip end of the coil material 26 is guided between driving pinch rolls 50, 52 through an entrance guide 44 and an entrance rounding guide 46, with the coil material 26 delivered while both sides are held between the driving pinch rolls 50, 52. The coil material 26 thus delivered is supplied to a coil material feeding port 70 of a leveler feeder 12 through a bending roll unit 60, an exit delivery guide 64 and a loop guide 24. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an uncoiler, and more particularly, to an uncoiler that rewinds a coil material wound in a coil shape and supplies the coil material to a leveler feeder or the like.

In press processing lines for pressing automotive parts and building parts, etc., coil material wound in a coil shape, for example, a strip-shaped steel plate is rewound with an uncoiler, and the rewound coil material is wound with a leveler feeder. A configuration in which wrinkles are corrected and supplied to the press is adopted.
This type of uncoiler includes, for example, a drum that is rotatably supported by a rotating shaft via a bearing, a motor that rotationally drives the rotating shaft for the drum, and a coil presser that presses the outer periphery of a coil material mounted on the drum. When the coil material mounted on the drum is rewound, the drum is rotated by driving the motor, and the coil material is rewound while pressing the outer periphery of the coil material with the coil presser. Has been proposed (Patent Document 1).
JP-A-8-71649 (pages 2 to 3, FIG. 2)

  In the prior art, since the leveler is installed in the vicinity of the region where the coil material is rewound, the coiled material can be supplied to the leveler only by moving a small distance. However, when the coil mounted on the drum is rewound, the coil material is rewound simply by pressing the outer periphery of the coil material with the coil presser, and the position of the leveler where the rewound coil material is introduced is fixed. Therefore, depending on the type and state of the coil material, or the diameter of the coil material, the coil material that has been rewound may not be automatically supplied to the leveler.

  For example, when rewinding a highly rigid coil material, simply pressing the outer periphery of the coil material with the coil presser will cause the tip side of the coil material unwound through the coil presser to move from the line connecting the coil presser and the leveler. There is a possibility that the coil material may move upward and be unable to be automatically supplied to the coil material introduction port (receiving port) of the leveler. On the other hand, when the coil material having a thin plate thickness and having oil or the like is rewound, the rewound coil material may move downward (to the drum side) from the coil material inlet of the leveler. Also, if the leveler position is adjusted to the coil material with a large diameter, when the coil material with a small diameter is rewound, the distance between the coil material and the leveler becomes long, and the rewound coil material is used as the leveler coil. It becomes difficult to automatically supply to the material inlet.

  That is, when the coil material is rewound by the rotation of the drum as in the prior art, the leveler that introduces the rewound coil material is placed at a fixed position by simply rewinding the outer periphery of the coil material with the coil presser. In the fixed configuration, the coil material may vary depending on the type and state of the coil material or the diameter of the coil material, and the coil material may not be smoothly rewound.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to prevent the coil material from separating when the coil material is rewound.

  In order to achieve the object, in the uncoiler according to claim 1, a main shaft that is rotatably arranged as a coil material mounting target, and a coil presser that presses an outer peripheral surface of the coil material mounted on the main shaft, A feeding mechanism that introduces a coil material that has been rewound through the coil presser as the main shaft rotates and feeds the coil material while holding both sides of the coil material, and the feeding mechanism is disposed so as to be movable forward and backward with respect to the main shaft. Configured to be.

  (Operation) When the coil material mounted on the main shaft is rewound, the feeding mechanism is moved closer to or away from the main shaft in accordance with the size of the coil material, and the feeding mechanism is adjusted according to the size of the coil material. If the coil material is rewound while rotating the main shaft after that, the coil material is rewound while being pressed by the coil presser, and the rewound coil material is introduced into the feeding mechanism as it is and is introduced. The coil material is fed out in a state where both sides thereof are sandwiched. That is, by adjusting the position of the feeding mechanism according to the diameter of the coil material, the coil material can be fed out while automatically pinching the leading end side of the coil material. Can be prevented.

  In the uncoiler according to claim 1, in the uncoiler according to claim 1, the feeding mechanism introduces a coil material that has been rewound through the coil presser, and sends out a plurality of drive pinch rolls that are fed while pressing both surfaces thereof; A plurality of coil material guides arranged opposite to the coil material introduction side of the plurality of drive pinch rolls and guiding the coil material rewound through the coil presser to the plurality of drive pinch rolls. did.

  (Operation) When the coil material mounted on the main shaft is rewound, the coil material unwound through the coil presser moves away from the line connecting the coil presser and each drive pinch roll and moves closer to the main shaft. Even if it moves or moves away from the main shaft, these movements are blocked by the respective coil material guides, and the unwound coil material can be guided to the respective drive pinch rolls. The coil material guided to each drive pinch roll is sent out while being pressed by the drive pinch roll. For this reason, by arrange | positioning each coil material guide according to the diameter of a coil material, the front-end | tip of the coil material which was rewound can be hold | gripped automatically and can be sent out.

  In the uncoiler according to claim 2, in the uncoiler according to claim 2, one coil material guide of the plurality of coil material guides is a coil of one drive pinch roll separated from the main shaft among the plurality of drive pinch rolls. The other coil material guide is disposed along the direction gradually separating from the main shaft from the material introduction side toward the coil presser side, and the other coil material guide is disposed on the main shaft side with respect to the one drive pinch roll. It is arranged along the direction gradually approaching the main shaft from the coil material introduction side of the roll toward the coil presser side, and the end portion of the coil presser side contacts or approaches the outer peripheral surface of the coil material mounted on the main shaft. It was configured as follows.

  (Operation) With each coil material guide as a movement path of the coil material, one coil material guide is arranged along the direction away from the main axis, the other coil material guide is arranged along the direction approaching the main axis, and Since the coil presser side end portion is arranged so as to be in contact with or close to the outer peripheral surface of the coil material mounted on the main shaft, for example, a highly rigid material is used as the coil material, and this coil material is rewound. Even when the coil material moves away from the main axis, the movement is blocked by one coil material guide, and the coil material can be guided to one drive pinch roll. On the other hand, a thin coil material or a material with oil attached thereto is used as the coil material, and even if the unwound coil material is difficult to separate from the coil material mounted on the main shaft, the other coil material guide Since the distal end side is inserted between the coil material that has been rewound and the coil material that is attached to the main shaft, the coil material that has been rewound is forcibly moved away from the main shaft, and the other drive pinch roll To the coil introduction side. That is, by arranging each coil material guide at a position corresponding to the diameter of the coil material, the rewound coil material can be automatically guided to the drive pinch roll side regardless of the type and state of the coil material. .

  According to a fourth aspect of the present invention, in the uncoiler according to the second or third aspect, the feeding mechanism includes a moving direction regulating member that regulates the moving direction of the coil material fed from the plurality of drive pinch rolls.

  (Operation) Since the moving direction of the coil material sent out from each driving pinch roll is restricted by contact with the moving direction restricting member, the coil material sent from each driving pinch roll is moved along the moving direction restricting member. Can be sent out.

  5. The uncoiler according to claim 4, wherein the feed mechanism includes a support member that supports the plurality of drive pinch rolls, the plurality of coil material guides, and the moving direction regulating member. Is configured to be connected to driving means for moving the support member forward and backward with respect to the main shaft in response to a drive command.

  (Operation) A drive command corresponding to the diameter of the coil material mounted on the main shaft is given to the drive means, and the drive means moves the support member closer to the main shaft or moves the support member away from the main shaft in accordance with the drive command. Thereby, according to the magnitude | size of the diameter of a coil material, the position of each drive pinch roll, each coil material guide, and a movement direction control member can be positioned automatically.

  The uncoiler according to claim 5, wherein the support member includes a contact roll disposed opposite to an outer peripheral surface of a coil material attached to the main shaft, the contact roll, and the main shaft. Contact detection means for detecting the presence or absence of contact with the outer peripheral surface of the coil material attached to the drive means, the contact detection means being connected to a drive command generation means for outputting a drive command to the drive means, and the drive The command generation unit is configured to generate a drive command for bringing the contact roll into contact with the outer peripheral surface of the coil material attached to the main shaft based on the detection output of the contact detection unit.

  (Operation) When the contact detection means detects the contact between the contact roll and the outer peripheral surface of the coil material mounted on the main shaft, the outer peripheral surface of the coil material mounted on the main shaft based on this detection output A drive command for making contact with the shaft, for example, a drive command including a drive amount and a drive direction is generated, and the driving means moves the support member forward and backward with respect to the main shaft according to the drive command, so that the contact roll is always coiled. The follow-up control for contacting the outer peripheral surface of the coil member can be performed, and as a result, the support member can be automatically positioned in accordance with the diameter of the coil material.

  According to claim 7, in the uncoiler according to claim 4, the movement direction regulating member is disposed adjacent to the coil material delivery side of the plurality of drive pinch rolls and is delivered from the plurality of drive pinch rolls. A plurality of bending rolls sandwiching the coil material, wherein the plurality of bending rolls are disposed apart from each other along the moving direction of the coil material fed from the plurality of drive pinch rolls; It is disposed at a position farther from the main shaft than the pair of guide rolls with the fed coil material in between, and at an intermediate position between the guide rolls in the moving direction of the fed coil material. It comprised from the roll for a press which presses one side of the said coil material sent out to each said roll for guides.

  (Operation) On the coil material delivery side of each drive pinch roll, a pair of guide rolls for guiding the movement of the coil material delivered from each drive pinch roll, and one surface of the coil material delivered from each drive pinch roll Because the pressing roll that presses the guide roll to the guide roll side is arranged, the coil material sent from each drive pinch roll passes through each bending roll, and the coil material corrects the curl of the coil material. The coil material in which the pressing force is applied and the curl is corrected can be sent out. As a result, when the coil material is supplied to the leveler feeder or the like, the coil material whose curl has been corrected can be supplied to the leveler feeder or the like, and the coil material can be easily inserted into the leveler feeder or the like.

  In the uncoiler according to claim 7, the moving direction regulating member is disposed adjacent to the coil material feeding side of the plurality of bending rolls, and the distance from the main shaft gradually increases. An outlet guide for forming the wall of the apparatus was provided.

  (Operation) Since an exit guide that forms an arc-shaped wall whose distance from the spindle is gradually increased is arranged on the coil material feeding side of each bending roll, the coil material fed from each bending roll is By sending out along the wall, the coil material can be sent out smoothly.

  As is clear from the above description, according to the uncoiler according to claim 1, the coil material that has been rewound can be fed out while being automatically clamped, and the coil material can be separated when the coil material is rewound. Can be prevented.

  According to the second aspect, the tip of the coil material that has been rewound can be automatically gripped and sent out.

  According to the third aspect, the rewound coil material can be automatically guided to the drive pinch roll regardless of the type and state of the coil material.

  According to the fourth aspect, the coil material fed from each drive pinch roll can be fed along the movement direction regulating member.

  According to the fifth aspect, each drive pinch roll, each coil material guide, and the movement direction regulating member can be automatically positioned according to the size of the diameter of the coil material.

  According to the sixth aspect, the support member can be automatically positioned according to the diameter of the coil material.

  According to the seventh aspect, it is possible to feed out the coil material in which the curl is corrected.

  According to the eighth aspect, the coil material can be smoothly fed out.

  Embodiments of the present invention will be described based on examples. FIG. 1 is a front view including a cross section of an essential part of an uncoiler showing an embodiment of the present invention, FIG. 2 is a front view for explaining a configuration of a bending roll unit, and FIG. 3 is a diagram showing a configuration of a pinch roll follow-up detection roll unit. It is a front view for doing.

  In these drawings, the uncoiler 10 is installed, for example, in a press processing line for pressing automotive parts and the like. In this embodiment, the uncoiler 10 is installed adjacent to the leveler feeder 12. The uncoiler 10 includes a main shaft (mandrel) 14, a coil side guide 16, a coil presser 18, a feed mechanism 20, a pinch roll following movement cylinder 22, a loop guide 24, and the like.

  The main shaft 14 is formed so that the coil material 26 can be mounted as a mounting target of the coil material 26 in which a steel plate or the like formed in a strip shape is wound in a coil shape, and the rotating shaft 14a is a bearing (not shown). ) To be rotatably supported by the housing 28. The rotating shaft 14a is connected to a rotating shaft of a motor (not shown), and is rotated by forward or reverse driving of the motor. The housing 28 is formed in a substantially box shape using, for example, iron, and the bottom side is fixed on the floor 30. A coil side guide 16 and a coil presser 18 are fixed to the housing 28 at a constant distance from the main shaft 14. The coil side guide 16 includes a guide roll 16a disposed on the side surface side of the coil material 26 attached to the main shaft 14, and the guide roll 16a is used when the coil material 26 is rewound by the rotation of the main shaft 14. The coil member 26 is configured to be prevented from moving in the radial direction.

  The coil presser 18 is disposed so as to be swingable substantially above the main shaft 14. The coil presser 18 includes a swing arm 18b that is swingably connected to the arm shaft 18a, and a presser roller 18d that is rotatably fixed to the distal end side of the swing arm 18b via a pin 18c. Yes. The swing arm 18b is connected to a cylinder, for example, an air cylinder. The presser roller 18d is pressed against the outer peripheral surface of the coil material 26 from the air cylinder to the swing arm 18b, and the diameter of the coil material 26 is increased. Regardless of the size, a pressing force for causing the pressing roller 18d to follow the outer peripheral surface of the coil material 26 is applied. When the pressing force (driving force) from the air cylinder is applied to the swing arm 18 b, the coil presser 18 swings with the arm shaft 18 a as a fulcrum, and the pressing roller 18 d has an outer periphery of the coil material 26. The surface is pressed. For this reason, when the coil material 26 is rewound along with the rotation of the main shaft 14, the coil material 26 is rewound in a state where the outer peripheral surface is pressed by the coil presser 18, and is rewound via the coil presser 18. The coil material 26 is introduced into the delivery mechanism 20, and the introduced coil material 26 is delivered in a state where both surfaces (upper surface and lower surface) are sandwiched.

  The delivery mechanism 20 is disposed in the vicinity of a region where the coil material 26 attached to the main shaft 14 is rewound so as to be able to advance and retreat with respect to the main shaft 14, for example, to be swingable. It is configured with. The bracket 32 and the support column 34 are integrally formed, and the support column 34 is swingably connected to the housing 38 via the swing shaft 36. The casing 38 is fixed on a gantry 42 disposed in a recess 40 of the floor 30, and the pinch roll following movement cylinder 22 is fixed to the casing 38. In the cylinder 22, a rod 22a is connected to a support column 34 through a pin 22b, and the support column 34 swings with a swing shaft 36 as a fulcrum according to the reciprocation of the cylinder 22. That is, the delivery mechanism 20 approaches the main shaft 14 or moves away from the main shaft 14 in accordance with the swing of the support column 34. For this reason, by driving the cylinder 22, the delivery mechanism 20 can be moved closer to the main shaft 14 or separated from the main shaft 14 depending on the diameter of the coil material 26.

  The bracket 32 includes an entrance guide 44, an entrance R guide 46, a pinch roll following detection roll unit 48, a pair of drive pinch rolls 50 and 52, a pinch roll pressurizing cylinder 54, a pinch roll drive motor 56, and a pinch roll width guide 58. A bending roll unit 60, a bending roll pressure cylinder 62, and an outlet delivery guide 64 are fixed to the support 34.

  The entrance guide 44 and the entrance R guide 46 are configured to guide the coil material 26 rewound through the coil presser 18 to the drive pinch rolls 50 and 52 as coil material guides. The entrance guide 44 is disposed along a direction gradually separating from the main shaft 14 from the coil material introduction side of the drive pinch roll 50 toward the coil presser 18 side, and a surface facing the main shaft 14 is formed in a substantially arc shape. ing. That is, the entrance guide 44 has a high rigidity as the coil material 26, and when the rewound coil material 26 is rewound via the coil presser 18, the distal end side thereof moves away from the main shaft 14. In this case, the coil material 26 is prevented from moving by contact with the coil material 26 and can be guided to the coil material introduction side of the drive pinch roll 50 along the direction away from the main shaft 14. Has been placed.

  On the other hand, the entrance R guide 46 includes a plurality of rollers 46a and a flapper 46b. The entrance R guide 46 forms an arcuate line as a whole, and is configured such that a surface facing the entrance guide 44 forms a substantially arcuate wall surface. The rollers 46a are connected in series with each other, and the coil presser 18 side of the rollers 46a connected in series is connected to the flapper 46b. That is, the entrance R guide 46 is disposed along the direction gradually approaching the main shaft 14 from the coil material introduction side of the drive pinch roll 52 toward the coil presser 18 side, and a flapper 46b serving as an end of the coil presser side is provided. The coil member 26 mounted on the main shaft 14 is configured to be in contact with or close to the outer peripheral surface. Each roller 46a is made of iron, and the flapper 46b is made of resin. The flapper 46b swings with a connection point with the roller 46a as a fulcrum by driving an air cylinder (not shown). When the coil material 26 is unwound, a tip formed in a sharp shape is used. The side contacts the outer peripheral surface of the coil material 26. For this reason, as the coil material 26, for example, a coil attached to the front end side of the coil material 26 to be rewound and the main shaft 14 even when a thin plate or an oil or the like attached to the surface is rewound. A flapper 46b is inserted between the outer peripheral surface of the material 26 and the leading end side of the coil material 26 to be rewound can be pulled away from the outer peripheral surface of the coil material 26 mounted on the main shaft 14 and guided to the drive pinch roll 52 side. .

  The drive pinch rolls 50 and 52 are arranged to face each other in a direction orthogonal to the moving direction of the coil material 26 that has been rewound. The drive force from the pinch roll drive motor 56 is transmitted to each drive pinch roll 50, 52, and the applied pressure from the pinch roll pressurizing cylinder 54 is applied to the drive pinch roll 50. . When the coil member 26 is introduced between the drive pinch roll 50 and the drive pinch roll 52 when the drive pinch rolls 50 and 52 are rotated in opposite directions in response to the driving force and the applied pressure, they are introduced. The coil material 26 is fed out in a state where both surfaces thereof are sandwiched between the drive pinch rolls 50 and 52, that is, in a pressed state.

  A pinch roll width guide 58 is installed adjacent to the coil material delivery side of each drive pinch roll 50, 52, and the coil material 26 delivered by each drive pinch roll 50, 52 moves in the width direction. The sheet is fed in a state of being blocked by the pinch roll width guide 58. The coil material 26 sent out via the pinch roll width guide 58 is sent out via the bending roll unit 60.

  As shown in FIG. 2, the bending roll unit 60 is configured by each drive pinch roll 50, 52 as one element of a movement direction regulating member that regulates the movement direction of the coil material 26 sent out by each drive pinch roll 50, 52. A plurality of bending rolls 60a, 60b, and 60c that sandwich the fed coil material 26 are provided. The bending rolls 60a and 60b are configured as a pair of guide rolls arranged at a constant distance from each other along the moving direction of the coil material 26 sent out by the drive pinch rolls 50 and 52. On the other hand, the bending roll 60c has the coil material 26 sent out by the drive pinch rolls 50 and 52 in between, and is located farther from the main shaft 14 than the bending rolls 60a and 60b. Is arranged at a position intermediate between the bending rolls 60a and 60b, and is configured as a pressing roll that presses one surface of the fed coil material 26 toward the bending rolls 60a and 60b. . In other words, the bending roll 60 c is configured to receive the pressure from the bending cylinder pressurizing cylinder 62 and press the coil material 26. When the coil material 26 sent out by the drive pinch rolls 50 and 52 is sent out through the bending crawlers 60a, 60b and 60c, when the coil material 26 is pressed by the bending crawler 60c, the coil material 26 is corrected for curling. In this state, it is sent to the exit delivery guide 64 side.

  The exit delivery guide 64 is disposed adjacent to the coil material delivery side of the bending crawl unit 60, and the exit delivery guide 64 determines the moving direction of the coil material 26 delivered via the bending crawl unit 60. A plurality of guide plates 64a and a plurality of rollers 64b are provided as one element of the movement direction regulating member to be regulated. Each guide plate 64a and each roller 64b are connected in series to each other, and are configured as an outlet guide that forms an arc-shaped wall whose distance from the main shaft 14 gradually increases. That is, the exit delivery guide 64 prevents the coil material 26 fed out via the bending crawl unit 60 from moving in a direction away from the main shaft 14 and smoothly feeds the coil material 26 along the arcuate wall surface. It is configured as follows.

  On the other hand, as shown in FIG. 3, the pinch roll follow-up detection roll unit 48 includes a pair of guides 48a and 48b, a spring 48c, a contact roll 48d, a dog 48e, a proximity sensor 48f, and the like. The guides 48a and 48b are parallel to each other and fixed to the bracket 32, and a support member (not shown) that rotatably supports the rotating shaft 48g of the contact roll 48d is provided on each opposing surface of each guide 48a and 48b. A groove (not shown) is slidable. One end of the spring 48c is attached to the support plate 48h, and the other end is attached to a support member for supporting the rotating shaft 48g, and applies a biasing force in a direction away from the support plate 48h to the support member. It is supposed to be. The contact roll 48d is disposed so as to come into contact with the outer peripheral surface of the coil material 26 when the bracket 32 moves toward the main shaft 14 with the swing of the support column 34, and comes into contact with the outer peripheral surface of the coil material 26. Sometimes, the spring 48c moves toward the support plate 48h along the guides 48a and 48b against the urging force. The dog 48e is connected to the support member and moves together with the contact roll 48d, and the proximity sensor 48f is turned on and off in accordance with the movement of the dog 48e. For example, when the contact roll 48d and the coil material 26 come into contact with the contact roll 48d, the dog 48e moves to the support plate 48h side and comes into contact with the proximity sensor 48f. In addition, when the dog 48e moves away from the support plate 48h together with the contact roll 48d and the dog 48e moves away from the proximity sensor 48f, the proximity sensor 48f is turned off. That is, the dog 48e and the proximity sensor 48f are configured as detection means for detecting the presence or absence of contact between the contact roll 48d and the outer peripheral surface of the coil material 26 attached to the main shaft 14. The detection output of the proximity sensor 48f is supplied to, for example, a controller (not shown) built in the housing 28.

  The controller is composed of, for example, a microcomputer having a CPU, a RAM, a ROM, and the like, and is configured as a control unit that generates a control signal based on an operator's operation. This control signal is sent to, for example, a motor for rotationally driving the main shaft 14, a cylinder for driving the swing arm 18b, a pinch roll drive motor 56, a pinch roll pressure cylinder 54, a bending roll pressure cylinder 62, and the like. It is output.

  The controller also has a function as drive command generation means for generating a drive command for the pinch roll following movement cylinder 22 as drive means. In this case, the controller uses, for example, a drive amount (cylinder 22) as a drive command for bringing the contact roll 48d into contact with the outer peripheral surface of the coil material 26 attached to the spindle 14 based on the detection output of the proximity sensor 48f. A drive command including a pressure), a driving direction (swinging direction), and ON / OFF is generated. When the cylinder 22 swings the column 34 in accordance with this drive command, the abutting roll 48d moves while following the outer peripheral surface of the coil material 26 even if the coil diameter of the coil material 26 changes. The coil material 26 can be automatically moved in accordance with the change in the diameter of the coil material 26.

  For example, when the cylinder 22 is configured by a hydraulic cylinder, first, when starting the rewinding of the coil material 26, the cylinder 22 is driven until the proximity sensor 48f is turned on, and the column 34 is swung to the main shaft 14 side. Let When the proximity sensor 48 f is turned on, the driving of the cylinder 22 is temporarily stopped and the delivery mechanism 20 is positioned in the vicinity of the coil material 26 on the assumption that the contact roll 48 d comes into contact with the outer peripheral surface of the coil material 26. Thereafter, as the coil material 26 is rewound, the diameter of the coil material 26 decreases, and when the contact roll 48d moves away from the coil material 26, the proximity sensor 48f is turned off. The cylinder 22 is driven. In this way, by repeatedly controlling the driving of the cylinder 22 in accordance with ON / OFF of the proximity sensor 48f, the delivery mechanism 20 can be automatically moved in accordance with the change in the diameter of the coil material 26. At the same time, the delivery mechanism 20 can be positioned at a position suitable for rewinding the coil material 26. A similar configuration can be adopted when an air cylinder is used.

  The loop guide 24 is formed in a substantially arc shape, is installed below the main shaft 14, and is fixed on the gantry 42 via a lifter 66. The lifter 66 is connected to the bottom side of the loop guide 24 and supports the loop guide 24 so as to be movable up and down. Further, the loop guide 24 is configured such that the surface facing the main shaft 14 forms an arc-shaped wall surface, and the coil material 26 fed out via the outlet delivery guide 64 is fed to the leveler feeder via the arc-shaped wall surface. It is configured to guide to the 12 side. In FIG. 1, a gap is formed between the loop guide 24 and the outlet passing guide 64, but actually, the loop guide 24 and the outlet passing guide 64 are configured to intersect each other, and the loop guide A gap is not formed between the outlet 24 and the outlet passing guide 64.

  The leveler feeder 12 is configured as a device that corrects the curl of the coil material 26 supplied to the carry-in entrance, and in order to automatically supply the coil material 26 sent from the uncoiler 10 to the leveler feeder 12, the uncoiler. A plate passing mechanism 68 for the coil material 26 may be provided between the 10 and the leveler feeder 12. The plate passing mechanism 68 is not used when the coil material 26 fed from the uncoiler 10 is continuously supplied to the leveler feeder 12.

  The leveler feeder 12 includes a work roll unit 74 installed between the coil material carry-in port 70 and the coil material discharge port 72. The work roll unit 74 includes a drive pinch roll, a work roll, a feed roll, and the like. Configured. When the coil material 26 delivered from the uncoiler 10 is supplied to the coil material carry-in port 70 through the plate passing mechanism 68, the coil material 26 is corrected for curling, distortion, etc. by the work roll unit 74, and the coil material 26 It is discharged from the discharge port 72.

  In the above configuration, when the coil material 26 is attached to the main shaft 14 and an operation for rewinding the coil material 26 is performed by the operator, a control signal or a drive command is issued from the controller to each cylinder or the like, and the air cylinder The coil presser 18 is lowered to the main shaft 14 side with the drive of. Here, the main shaft 14 is rotated so that the tip of the coil material 26 is positioned at the position where the coil material 26 passes the press roller 18d (between the press roller 18d and the entrance guide 44), and the band for fixing the coil material 26 is removed. . Next, as the cylinder 22 is driven, the support column 34 swings toward the main shaft 14, and the contact roll 48 d comes into contact with the outer peripheral surface of the coil material 26. Subsequently, when the main shaft 14 rotates counterclockwise by the rotation of the motor, the coil material 26 attached to the main shaft 14 is sequentially rewound from the tip side. At this time, the coil material 26 is rewound while being pressed by the coil presser 18, and the rewound coil material 26 is introduced between the entrance guide 44 and the entrance R guide 46 at the leading end side, and the drive pinch roll 50, 52 side. When the leading end side of the rewound coil material 26 is introduced between the drive pinch roll 50 and the drive pinch roll 52, the coil material 26 is in a state where both surfaces are sandwiched by the rotational drive of the drive pinch rolls 50 and 52. That is, it is sent out in a pressed state. The coil material 26 sent out by the drive pinch rolls 50 and 52 is sequentially sent out to the bending roll unit 60 side, and the curl is corrected in the process of passing through the bending rolls 60a, 60b and 60c. The coil material 26 in which the curl has been corrected is sent out along the outlet passing guide 64 and the loop guide 24 and is supplied to the coil material supply port 72 of the leveler feeder 12 through the passage plate mechanism 68. The coil material 26 supplied to the coil material supply port 72 is sequentially supplied to the work roll unit 74 side, and is sequentially sent out from the coil material carry-out port 72 side. When the distal end side of the coil material 26 is fed out from the coil material carry-out port 72 of the leveler feeder 12, the press roller 18 swings away from the coil material 26, and the rotation drive of the main shaft 14 is also stopped.

  That is, the coil member 26 attached to the main shaft 14 is sequentially sent out by the driving force of the drive pinch rolls 50 and 52 when the tip end side is sent out from the leveler feeder 12.

  In the process in which the coil material 26 is sequentially sent out by the driving force of the drive pinch rolls 50 and 52, the diameter of the coil material 26 is sequentially reduced, so that the contact roll 48d follows the change in the diameter of the coil material 26. The drive of the cylinder 22 is controlled by the controller. For this reason, the position of the delivery mechanism 20 can be automatically adjusted in accordance with the change in the diameter of the coil material 26, and even if the diameter of the coil material 26 is sequentially reduced, the coil material 26 mounted on the main shaft 14 can be removed. It can be sent out smoothly.

  In the present embodiment, when the coil material 26 attached to the main shaft 14 is rewound, the position of the delivery mechanism 20 is automatically adjusted according to the diameter of the coil material 26. When the mounted coil material 26 is rewound, the rewound coil material 26 is automatically guided between the drive pinch roll 50 and the drive pinch roll 52 and sent out by the rotational drive of the drive pinch rolls 50, 52. Therefore, it is possible to prevent the coil material 26 from separating when the coil material 26 is rewound, regardless of the diameter of the coil material 26.

  In addition, when a highly rigid material is used as the coil material 26, the entrance guide 44 can prevent the coil material 26 from moving in a direction away from the main shaft 14. Even when rewinding, it is possible to prevent the coil material 26 from being separated. Further, even when a thin coil material or a material with oil or the like attached to the surface is used as the coil material 26, the tip side of the coil material 26 is located between the coiler 46 b and the coil material 26 attached to the main shaft 14. Therefore, the coil material 26 can be separated even if a thin coil material or a material with oil attached to the surface is used as the coil material 26. Can be prevented.

  In the present embodiment, the feed mechanism 20 is automatically positioned according to the diameter of the coil material 26. However, the feed mechanism 20 can be positioned by manual operation.

It is a front view including the principal part cross section of the uncoiler which shows one Example of this invention. It is a front view for demonstrating the structure of a bending crawl unit. It is a front view for demonstrating the structure of a pinch roll tracking detection roll unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Uncoiler 12 Leveler feeder 14 Spindle 16 Coil side guide 18 Coil presser 20 Feeding mechanism 22 Pinch roll follow movement cylinder 44 Entrance guide 46 Entrance R guide 48 Pinch roll follow detection roll unit 50, 52 Drive pinch roll 54 Pinch roll pressure cylinder 56 Pinch roll drive motor 58 Pinch roll width guide 60 Bending roll unit 62 Bending roll pressure cylinder 64 Outlet delivery guide

Claims (8)

  A main shaft that is rotatably arranged as a coil material mounting target, a coil presser that presses the outer peripheral surface of the coil material that is mounted on the main shaft, and a coil presser that has been unwound through rotation of the main shaft. An uncoiler comprising a feeding mechanism that introduces a coil material and feeds the both sides of the coil material, and the feeding mechanism is disposed so as to be movable forward and backward with respect to the main shaft.   2. The uncoiler according to claim 1, wherein the feed-out mechanism introduces a coil material that has been rewound through the coil presser and feeds it while pressing both surfaces thereof, and the plurality of drive pinch rolls An uncoiler comprising: a plurality of coil material guides arranged opposite to each other on the coil material introduction side and for guiding the coil material rewound through the coil presser to the plurality of drive pinch rolls. .   3. The uncoiler according to claim 2, wherein one coil material guide of the plurality of coil material guides is the coil from the coil material introduction side of one drive pinch roll that is separated from the main shaft among the plurality of drive pinch rolls. The coil material introduction side of the other drive pinch roll, which is arranged along the direction gradually separating from the main shaft toward the presser side, and the other coil material guide is arranged on the main shaft side with respect to the one drive pinch roll. The coil presser side end portion is arranged along a direction gradually approaching the main shaft toward the coil presser side, and the end portion of the coil presser side is in contact with or close to the outer peripheral surface of the coil material attached to the main shaft. Uncoiler to do.   4. The uncoiler according to claim 2, wherein the feeding mechanism includes a moving direction regulating member that regulates a moving direction of the coil material fed from the plurality of drive pinch rolls. 5.   5. The uncoiler according to claim 4, wherein the delivery mechanism includes a support member that supports the plurality of drive pinch rolls, the plurality of coil material guides, and the movement direction regulating member, and the support member responds to a drive command. The uncoiler is connected to driving means for moving the support member forward and backward with respect to the main shaft.   6. The uncoiler according to claim 5, wherein the support member includes a contact roll disposed opposite to an outer peripheral surface of the coil material attached to the main shaft, and a coil material attached to the contact roll and the main shaft. Contact detection means for detecting the presence or absence of contact with the outer peripheral surface of the contact, the contact detection means is connected to a drive command generation means for outputting a drive command to the drive means, the drive command generation means, An uncoiler characterized by generating a drive command for bringing the contact roll into contact with the outer periphery of a coil material mounted on the main shaft based on a detection output of a contact detection means.   5. The uncoiler according to claim 4, wherein the movement direction regulating member is disposed adjacent to the coil material delivery side of the plurality of drive pinch rolls and sandwiches the coil material delivered from the plurality of drive pinch rolls. A plurality of bending rolls, the plurality of bending rolls being separated from each other along the moving direction of the coil material fed from the plurality of drive pinch rolls, and the fed coil material The coil material that is sent out by being disposed at a position farther from the main shaft than the pair of guide rolls and in the middle of each of the guide rolls in the moving direction of the sent coil material Characterized in that it is composed of a pressing roll that presses one side of the guide toward the guide roll side. La.   8. The uncoiler according to claim 7, wherein the moving direction regulating member is disposed adjacent to the coil material feeding side of the plurality of bending rolls and forms an arcuate wall whose distance from the main shaft is gradually increased. An uncoiler characterized by comprising a guide.

Images