JP6322064B2 - Coil reversing device and production line - Google Patents

Description

  The present invention relates to a coil reversing apparatus and a production line suitable for stacking and using a coil in which a strip-shaped steel plate is continuously wound or used for packaging.

  Conventionally, for example, a patent that can be used by continuously connecting and coiling end portions of a plurality of rolled steel sheets made of rolled steel, and taking out a coil of any length can be used. The manufacturing method of the continuous coil disclosed by the literature 1 is known.

  The continuous coil is manufactured by connecting the previous coil and the inner end of the next connected coil or the outer end of the coil, and then bringing them closer together while winding the strip between the two coils. By stacking newly connected coils on top of each other, a plurality of coils are superimposed in a continuous state. By doing in this way, it becomes possible to take out the strip | strip sequentially in order from the inner end of the adjacent coil joined from the upper coil to the lower coil, or an outer end.

  FIG. 8 is a schematic view showing a slit process performed as a pre-process of a conventional coil production line. FIG. 9 is a view showing a state when the coil is reversed by a conventional 90-degree reversing device, (a) is a schematic diagram showing a state when the coil is sent out, and (b) is a state where the coil is reversed by a crane by 180 degrees. FIG. 4C is a schematic diagram showing a state when the coil is rotated, and FIG. 5C is a schematic diagram showing a state when the coil is rotated 90 degrees with a 90-degree reversing device. 10A and 10B are diagrams showing a conventional 90-degree reversing device, in which FIG. 10A is a schematic diagram showing a state when the coil is transferred to the 90-degree reversing device, and FIG. 10B is a view when the coil is rotated 90 degrees. It is the schematic which shows the state of. FIG. 11 is a schematic diagram showing a continuous coil production line in which a plurality of conventional coils are continuously connected and stacked.

  As shown in FIG. 8, a strip-shaped steel plate coil 200 is formed by a slitting process in which a wide coil material 201 wound around an uncoiler 110 in a clockwise direction has a desired width by a device called a slitter 120 depending on the intended use. After being cut into small coil materials 202 and subdivided, the coil material is wound on a winding shaft 130. When the coil 200 of the winding shaft 130 is placed in the state of the coiled coil 210 on the pallets 301 and 302 and the state of the coiled coil 220 on the opposite side, as shown in FIG. Before transferring the coils 200 to the pallets 301 and 302, half of the coils 200 are reversed using a 90-degree reversing machine 140 and a sling 410 as shown in FIGS. The state of the coil 220 is set. The remaining half of the coils 200 are brought into the state of a coiled coil 210 using a 90-degree reversing machine 140 as shown in FIGS. 10 (a) and 10 (b).

More specifically, as shown in FIG. 9A, half of the coils 220 (200) wound in the counterclockwise direction are one by one as shown in FIGS. 9A and 9B. It is hung by a crane 400 (or hoist) and a sling 410 and rotated 180 degrees to form a coil 210 wound in a clockwise direction, and from the winding shaft 130 side to the coil support shaft 141 side of the 90-degree reversing machine 140. To be transported. Next, as shown in FIG. 9C, the coil 210 wound in the clockwise direction is rotated 90 degrees by a 90-degree reversing device 140 to form a reverse-shaped coil 220. Transferred onto the support table 142.
In this case, when the coils 200 are suspended one by one with the sling 410, it is necessary to secure a gap for passing the sling 410. Therefore, the sling 410 can be moved by slightly pulling and moving the one coil 200 in front. 410 A gap for insertion is secured.

  Further, as shown in FIG. 10A, when the remaining half of the coil 220 (200) wound in the counterclockwise direction is transferred from the winding shaft 130 of the slitter 120 to the 90-degree reversing device 140, The ends of the winding shaft 130 and the coil support shaft 141 are brought into contact with each other, and half of the coils 200 are pressed by the pusher 131 to move horizontally from the slitter 120 side to the 90 ° reversing device 140 side at once.

  Next, as shown in FIG. 10B, the reversing cylinder 143 of the 90-degree reversing machine 140 is driven to rotate the coil supporting base 142 to which the coil supporting shaft 141 is fixed by 90 degrees. As a result, the coil 200 is turned 90 degrees to form a coiled coil 210 and is placed on the coil support 142 in a horizontal state.

As described above, the manufacturing line 100 of the coil 200 is the reverse of the pallet 301 on which the coil 210 wound in the character winding shown in FIG. The pallet 302 for placing the coiled coil 220, the crane 400 for transferring the coil 200 (210, 220), and the work table 500 for temporarily placing the coil 200 (210, 220) were placed. A turntable 600 capable of rotating the coil 200 (210, 220) and a welding device (not shown) for welding the connecting portions 211, 221 of the coil 200 are provided.
The crane 400 is an overhead traveling transport device that moves the coil 200 along the transport path.

  After being manufactured, the coil 210 wound in a square shape is placed on the pallet 301 in a stacked state. After the coil 220 wound in the reverse letter winding is manufactured, it is placed in a state where a plurality of coils 220 are stacked on another pallet 302. Thereafter, the coiled coil 210 at the top of the pallet 301 and the coiled coil 220 at the top of the pallet 302 are alternately transferred onto the work table 500 by the crane 400 one by one. Placed.

  For this reason, for example, when the reverse-shaped coil 220 is placed on the work table 500, the coil-shaped coil 210 transferred by the crane 400 is placed on the top of the turntable 600. Opposed in the horizontal direction. The connecting portion 221 of the reversely wound coil 220 on the work table 500 and the connecting portion 211 of the wound coil 210 at the top of the turntable 600 are connected to each other by welding. The reverse coiled coil 220 on the work table 500 connected to the uppermost coil 210 on the turntable 600 is transferred by the crane 400 onto the uppermost coil 210 on the turntable 600. To be placed.

  In this way, the uppermost winding coil 210 on the turntable 600 is connected to the reverse winding coil 220 on the work table 500, and the uppermost winding coil 210. Then, the reverse coiled coil 220 mounted on the work table 500 is connected to the coiled coil 210. Therefore, on the turntable 600, the coil 200 mounted in the order of the coiled coil 210, the coiled coil 210 of the opposite shape, and the coiled coil 210 of the reversely wound coil is connected and stacked. It is like that.

Japanese Patent No. 2696668

  However, in the production line 100 as shown in FIG. 11, when the coils 200 having different winding directions are alternately connected in the horizontal state, the outer ends or the inner ends are sequentially connected to each other and stacked upward. The outer ends or the inner ends of the coil 200 are connected to each other. In order to make this connection possible, in the previous step shown in FIGS. 9A and 9B, half of the coils 200 are manually rotated 180 degrees one by one using the crane 400 and the sling 410. Since reverse winding is necessary, there is a problem that work efficiency and workability are poor.

  Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coil reversing device and a production line capable of automatically reversing a coil.

  In order to solve the above problems, a coil reversing device according to the present invention is a coil reversing device that reverses a coil carried in by a carry-in conveyor so that the air core directions of the coils are opposite to each other. A receiving conveyor on which the coil that has been conveyed by the carry-in conveyor is placed, and a delivery conveyor that is arranged so as to face above the receiving conveyor and that feeds the coil in an inverted state; A coil fixing device for holding the coil placed on the receiving conveyor on at least one of the receiving conveyor and the sending conveyor, and the entire receiving conveyor, the sending conveyor, and the coil fixing device. Rotation drive mechanism that rotates and rotates around a rotation axis arranged along a horizontal direction orthogonal to the direction , Wherein the coil fixing device, the inverted said receiving conveyor in a state allowed or, characterized in that to release the coil held in the delivery conveyor on the delivery conveyor.

  According to such a configuration, the coil reversing device of the present invention holds the coil by at least one of the receiving conveyor and the sending conveyor and the coil fixing device, and the coil is rotated by the rotation drive mechanism to receive the receiving conveyor and the sending conveyor. And the whole device of the coil fixing device can be driven to rotate about the rotation axis with respect to the conveying direction and reversed. For this reason, the coil inversion apparatus can invert the coil automatically and easily.

  Moreover, it is preferable that the said coil fixing device consists of a cylinder mechanism which presses and hold | maintains the said coil.

  According to such a configuration, the coil fixing device can hold the coil on the receiving conveyor or the sending conveyor against the receiving conveyor or the sending conveyor by the piston portion pushed out from the cylinder portion of the cylinder device.

  The coil reversing device is provided with a support frame for supporting the receiving conveyor, the delivery conveyor, and the coil fixing device, the support frame rotatably supported, and the rotation driving mechanism provided. And a support.

  According to such a configuration, the coil reversing device is configured such that the support frame supporting the receiving conveyor, the sending conveyor, and the coil fixing device is rotated about the support column by the rotation driving mechanism. Can be reversed.

  In addition, the coil fixing device is arranged on the receiving conveyor and holds the coil from one side, a receiving side fixing device is arranged on the sending conveyor and holds the coil from the other side, The coil carried into the coil reversing device is sandwiched between a clamper of a cylinder mechanism provided in the receiving side fixing device and a clamper of a cylinder mechanism provided in the sending side fixing device, It is preferable to be rotated by the rotation drive mechanism.

  According to such a configuration, the coil fixing device is configured such that the coil carried into the coil reversing device includes the clamper of the cylinder device of the receiving side fixing device that holds the coil from one side, and the sending side that holds the coil from the other side. The coil can be clamped by the clamper of the cylinder device of the fixing device and can be rotated by the rotation drive mechanism.

The production line according to the present invention is a production line provided with a coil reversing device , and the coil reversing device reverses the coil sent from the carry-in conveyor to the coil reversing device, and the sending conveyor. a step of transferring the pressurized et transportable out on a conveyor, after delivery from the delivery conveyor in a state in which the by inverting, from said delivery conveyor without inverting the next coil which is transmitted to the delivery conveyor from the input conveyor A support frame for supporting the receiving conveyor, the sending conveyor, and the coil fixing device after the step of transferring onto the carry-out conveyor, and the transfer from the sending conveyor to the carrying-out conveyor without inverting the coil Rotating the body and returning the positions of the receiving conveyor and the sending conveyor upside down and reversed. And serial coil, characterized in that to transfer said coil is not inverted, alternately.

According to such a configuration, the production line according to the present invention is a zone in which the coil carried in by the carry-in conveyor is reversed by the coil reversing device and then placed on the carry-out conveyor to perform the next production process. Can be transported. Further, the coil reversing device can transfer the next coil sent to the delivery conveyor from the delivery conveyor to the carry-out conveyor without inverting it. The coil reversing device rotates the receiving conveyor, the sending conveyor, and the support frame after moving the feeding conveyor onto the carrying-out conveyor without reversing the coils, and positions the receiving conveyor and the sending conveyor. It can be reversed upside down. Thus, manufacturing line, by the coil reversing device, or is inverted alternately coils sent to the coil reversing device from input conveyor, or is transferred onto the discharge conveyor from the delivery conveyor without inverting, and receiving conveyors The position of the delivery conveyor can be reversed upside down , and the coil can be automatically reversed and placed in place without manual operation and sent out alternately. For this reason, the production line can easily stack the coils having different winding directions and weld the outer ends or the inner ends of each coil in order, thereby connecting the coils. Can increase the sex.

  According to the coil reversing device and the production line according to the present invention, the coil can be easily reversed automatically. For this reason, the present invention eliminates the manual work of reversing work that has been performed manually by using a crane and a sling when reversing the coil, and effectively reverses the coil in a short time. be able to.

It is a schematic side view which shows the coil inversion apparatus and manufacturing line which concern on embodiment of this invention. It is II sectional drawing of FIG. It is process drawing of the first half of a manufacturing line, (a) The principal part schematic side view which shows a coil carrying-in process, (b) The principal part schematic side view which shows a coil inversion apparatus mounting process, (c) is a coil holding process. The principal part schematic side view to show, (d) is a principal part schematic side view which shows a coil inversion process. It is process drawing of the latter half of a manufacturing line, (a) is a principal part schematic side view which shows the holding | maintenance release process of a coil, (b) A principal part schematic side view which shows the carrying-out process of a coil, (c) is reverse rotation of a reversing device. It is a principal part schematic side view which shows a process. It is the schematic which shows the manufacturing line of the continuous coil piled up by connecting the some coil carried in by the carry-out conveyor continuously. It is a schematic side view which shows the modification of the coil inversion apparatus which concerns on embodiment of this invention. It is II-II sectional drawing of FIG. It is the schematic which shows the slit process performed as a pre-process of the manufacturing line of the conventional coil. It is a figure which shows the state when reversing a coil with the conventional 90 degree reversing apparatus, (a) is the schematic which shows the state when sending out a coil, (b) is when a coil is reversed 180 degrees with a crane. FIG. 2 is a schematic diagram showing a state, and FIG. 3C is a schematic diagram showing a state when the coil is rotated 90 degrees by a 90-degree reversing device. It is a figure which shows the conventional 90 degree inversion apparatus, (a) is the schematic which shows the state when transferring a coil to a 90 degree inversion apparatus, (b) shows the state when rotating a coil 90 degree | times. FIG. It is the schematic which shows the manufacturing line of the continuous coil which connects and laminates the conventional several coil continuously.

Next, a coil reversing device according to an embodiment of the present invention will be described with reference mainly to FIGS. First, before explaining the coil reversing device according to the embodiment of the present invention, the coil W reversed by the coil reversing device (reversing device 3) of the present invention and the production line 1 on which the reversing device 3 is arranged. explain.
For convenience of explanation, in the production line 1, the reversing device 3 rotates to change the vertical direction of the reversing device 3, but the receiving conveyor 31 shown in FIG. 1 is a base 37 a of the column 37 of the reversing device 3. The side disposed on the side will be described as the lower side, and the side on which the delivery conveyor 32 is disposed will be described as the upper side.

≪Coil≫
The coil W shown in FIGS. 1 and 2 is, for example, a metal material obtained by winding a strip-shaped rolled steel plate in a donut shape around a cylindrical air core Wa. For example, the coil W is made of a coil having an outer diameter of about 1200 mm and a vertical width of about 100 mm, and the dimensions thereof may be appropriately changed as desired.

  As in the conventional case, the coil W is cut into small coil materials 202 having a desired width by a slitter 120 according to the intended use in the slit process of the previous process shown in FIG. It has been turned.

  In addition, after the coil W is sent to the zone where a post process is performed by the carry-out conveyor 4 which will be described later as shown in FIG. 1, the coil W is in a continuous state on the mounting table such as the turntable 14 as shown in FIG. 5. A plurality of cylinders are mounted on the cylinder. That is, the coil W is formed by welding and joining the connecting portions W1a and W2a of the positive and reverse coil materials (coils W1 and W2) having different winding directions, and in the horizontal state, alternately between the outer ends and the inner ends. They are arranged vertically stacked in order. Hereinafter, the coils W stacked in such a state are referred to as “multi-coils”.

≪Production line≫
In the production line 1 shown in FIG. 1, the metal material of the coil W conveyed to the reversing device 3 by the carry-in conveyor 2 (carry-in device) is reversed by the reversing device 3 and the next process is performed from the carry-out conveyor 4 (carry-out device). It is a line provided with a reversing device 3 capable of being sent out to the zone. The production line 1 includes a carry-in conveyor 2 that transfers the coil W onto the reversing device 3, a reversing device 3 that rotates the coil W 180 degrees, and a direction in which the next process is performed on the coil W sent from the reversing device 3. And a control device (not shown) for controlling the carry-in conveyor 2, the reversing device 3, the carry-out conveyor 4 and the like of the production line.

≪Carry-in conveyor≫
The carry-in conveyor 2 is a device that transfers the coil W to the reversing device 3, and is composed of, for example, a roller conveyor. The carry-in conveyor 2 includes a conveyor base 21 disposed on the conveyance route, a plurality of rollers 22 rotatably disposed on the upper surface portion of the conveyor base 21, and a shaft portion 23 that rotatably supports the rollers 22. And a drive motor mechanism 24 that rotationally drives the roller 22. The carry-in conveyor 2 is a transfer device that transfers the coil W by the rollers 22. If the carrying-in conveyor 2 is a conveying apparatus which can convey the coil W, the structure will not be specifically limited.

  As shown in FIG. 1, the conveyor base 21 is a table-like member that supports a plurality of rollers 22 arranged on the upper surface portion along a conveyance path via a plurality of appropriate intervals. The conveyor base 21 includes, for example, a support member 21a that extends in a rail shape along the conveyance path and supports the roller 22 from the left and right, and a plurality of legs 21b that support the support member. .

The roller 22 includes, for example, a driving roller 22a serving as a driving source for conveying the coil W placed on the roller 22, and a free roller 22b rotatably supported on the upper portion of the conveyor base 21. A part of the transport path is formed in a row.
The drive roller 22a is a carrier roller that is rotationally driven by an electric motor 24c disposed outside the roller 22. The free roller 22b is formed of a cylindrical member that is rotated by movement of the mounted coil W.

As shown in FIG. 1, the shaft portion 23 is a member that rotatably supports both ends of the roller 22, and is provided on the left and right support members 21 a of the conveyor base 21.
The drive motor mechanism 24 includes a roller driving pulley (not shown) for rotating the driving roller 22a, an endless belt 24a hung on the roller driving pulley, a motor driving pulley 24b for driving the endless belt 24a, and a motor driving pulley. And an electric motor 24c that rotates and drives 24b.

≪Reversing device≫
As shown in FIGS. 1 and 2, the reversing device 3 (coil reversing device) is a coil that reverses the coil W carried by the carry-in conveyor 2 so that the air core Wa direction of the coil W is opposite. Automatic reversing device. The reversing device 3 is disposed between the carry-in conveyor 2 and the carry-out conveyor 4 in the conveyance path for conveying the coil W. The reversing device 3 includes a return mechanism that returns the reversed coil W to its original state.

  The reversing device 3 includes a receiving conveyor 31 on which the coil W is placed, a sending conveyor 32 that sends out the inverted coil W, a coil fixing device 33 that holds the coil W, a receiving conveyor 31, a sending conveyor 32, And a support frame 34 that supports the entire device of the coil fixing device 33, a rotation shaft 35 provided on the left and right of the support frame 34, and the support frame 34 is driven to rotate about the rotation shaft 35. A rotation drive mechanism 36 for reversing, a support column 37 for rotatably supporting the support frame 34 via a rotation shaft 35, and a clamp surface of the coil fixing device 33 are maintained parallel to the upper surface of the coil W. And a guide shaft 38 for uniformly pressing the coil W, and a conveyor position detection sensor Se2 for detecting the position of the support frame 34 are provided.

<Receiving conveyor>
As shown in FIG. 1, the receiving conveyor 31 is a transfer device on which the coil W that has been transferred by the carry-in conveyor 2 is placed, and is connected to the carry-in conveyor 2 on the transfer path. The receiving conveyor 31 is rotatably disposed on a rail-shaped receiving conveyor base 31a horizontally disposed at the same height so as to be continuous with the conveyor base 21 of the carrying-in conveyor 2, and the receiving conveyor base 31a. A plurality of drive rollers 31b, a shaft portion 31c that rotatably supports the drive roller 31b, a drive motor mechanism 31d that rotationally drives the drive roller 31b, and the left and right receiving conveyor bases 31a and 31a. A stopper support member 31h, a coil stopper 31i provided on the stopper support member 31h so as to be axially adjustable, and a coil detection sensor Se1 for detecting that the coil W is at a predetermined position on the receiving conveyor 31. Configured.

  In this way, the receiving conveyor 31 is constituted by a conveyor having the same structure as the carry-in conveyor 2. The structure of the receiving conveyor 31 is not particularly limited as long as the receiving conveyor 31 can transport the coil W. The receiving conveyor 31 is disposed below the delivery conveyor 32 when receiving the coil W in the reversing device 3, and is rotated by the rotation driving mechanism 36 around the rotation shaft 35 before the coil W is sent out from the reversing device 3. The receiving conveyor 31, the sending conveyor 32 and the support frame 34 are rotated and arranged above the sending conveyor 32.

  As shown in FIG. 2, the receiving conveyor base 31 a is composed of two rail-like members fixed to the inner side surface of the support frame body 34 formed in a cross beam shape when viewed from the front. The receiving conveyor base 31a is arranged in parallel and horizontally with its two rail-shaped members directed in the transport direction (arrow A direction).

  The drive roller 31b is a drive source that is rotatably mounted between the two receiving conveyor bases 31a and 31a and conveys the coil W placed on the drive roller 31b. It is composed of a plurality of roller members arranged in a direction orthogonal to (direction). A plurality of drive rollers 31b are continuously arranged in a line at an appropriate interval in the transport direction.

  As shown in FIG. 1, the drive motor mechanism 31d is hung on a roller drive pulley (not shown) for rotating the drive roller 31b and two roller drive pulleys, like the drive motor mechanism 24 of the carry-in conveyor 2. The endless belt 31e, a motor drive pulley 31f that drives the endless belt 31e that is hung, and an electric motor 31g that rotates the motor drive pulley 31f are configured.

  The drive roller 31b may be constituted by a carrier roller that is rotationally driven by a motor (not shown) and a free roller, or may be constituted entirely by a carrier roller. .

The stopper support member 31h is composed of two rod-like members arranged in parallel with the drive roller 31b on the side of the drive roller 31b in the conveying direction. The stopper support member 31h is composed of, for example, two types of forward and reverse screw rod members that are rotatably laid on the rear end side in the conveying direction between the receiving conveyor bases 31a and 31a, and supports the coil stopper 31i so as to advance and retract. doing.
The coil stopper 31i is screwed to the stopper support members 31h and 31h so that the position can be adjusted by rotating the stopper support members 31h and 31h in the left-right direction according to the size of the coil W. . The coil stopper 31i includes, for example, two members arranged on the left and right sides of the stopper support member 31h.

  The coil detection sensor Se1 is a sensor that detects the coil W that has been transferred to a preset position on the receiving conveyor 31, and is, for example, a non-contact sensor such as an optical sensor or a contact sensor such as a touch switch. Consists of. The coil detection sensor Se1 is installed on the coil stopper 31i or the stopper support member 31h, and is connected to a control device (not shown).

<Sending conveyor>
The delivery conveyor 32 is a conveying device arranged in a two-stage state with respect to the receiving conveyor 31, and is arranged facing the receiving conveyor 31 with a coil W interposed therebetween. For example, the delivery conveyor 32 includes a conveyor configured in the same manner as the receiving conveyor 31. That is, in the reversing device 3, the drive conveyors (the receiving conveyor 31 and the sending conveyor 32) that can transfer the coil W are arranged in two upper and lower stages.

The delivery conveyor 32 has a conveyor base 21 of the carry-out conveyor 4 when the placed coil W is placed in the lower position where the coil W is sent to the carry-out conveyor 4 (when placed in the lower position of the reversing device 3). A rail-shaped delivery conveyor base 32a horizontally arranged at the same height so as to be continuous with each other, a plurality of drive rollers 32b rotatably arranged on the delivery conveyor base 32a, and a drive roller 32b rotating A shaft portion 32c that freely supports the shaft and a drive motor mechanism 32d that rotationally drives the drive roller 32b are provided.
Similarly to the drive motor mechanism 31d of the delivery conveyor 32, the drive motor mechanism 32d includes a roller drive pulley (not shown), an endless belt 32e, a motor drive pulley 32f, and an electric motor 32g. Yes.

<Coil fixing device>
As shown in FIG. 1, the coil fixing device 33 is a device that is disposed on one of the receiving conveyor 31 and the sending conveyor 32 and holds the coil W and fixes it to the receiving conveyor 31. Hereinafter, in this embodiment, the case where the coil fixing device 33 is arranged on the delivery conveyor 32 side and the coil W placed on the reception conveyor 31 side is held will be described as an example.
The coil fixing device 33 includes a coil fixing cylinder mechanism 33 a that presses and holds the coil W placed on the receiving conveyor 31 against the receiving conveyor 31. The coil fixing device 33 is provided, for example, at a cylinder 33b to which fluid pressure such as hydraulic pressure or compressed air is supplied, a piston 33c driven by the fluid pressure supplied into the cylinder 33b, and a tip of the piston 33c. And a clamper 33d for pressing and holding the coil W.

The coil fixing cylinder mechanism 33a includes a compression device (not shown) for generating hydraulic pressure or compressed air to be supplied into the cylinder 33b, an electromagnetic valve (not shown) interposed between the cylinder 33b and the compression device, and a compression device. And a control device (not shown) for controlling the device and the electromagnetic valve. The coil fixing cylinder mechanism 33a includes, for example, a plurality.
The cylinder 33b is a device that pushes out or sucks the piston 33c by hydraulic pressure supplied from a compression device (not shown) or compressed air.
The piston 33c lowers and raises the clamper 33d fixed to the lower end by driving a compression device (not shown).

  The clamper 33d is a member that is raised and lowered by the coil fixing cylinder mechanism 33a. The clamper 33d includes a coupling member 33e fixed to the piston 33c, an arm portion 33f coupled to the lower side of the coupling member 33e, and a coil W provided on the lower side of the arm and placed on the receiving conveyor 31. And a clamper portion 33g that presses and holds the coil W on the receiving conveyor 31.

The connecting member 33e is a member for connecting the piston 33c and the arm portion 33f, and is formed of, for example, a rectangular thick plate member or a frame-like member arranged horizontally.
The arm portion 33f is a plurality of members that are interposed between the connecting member 33e and the clamper portion 33g and connected to each other. The arm portion 33f is directed vertically so as to be inserted between a plurality of drive rollers 32b arranged on the delivery conveyor 32. Are arranged.
The clamper 33g is a member that presses and holds the coil W when the clamper 33d is lowered by the coil fixing cylinder mechanism 33a, and opens the coil W when the clamper 33d is raised. The clamper portion 33g is made of a thick plate member.

<Support frame>
As shown in FIG. 2, the support frame 34 is composed of a frame-shaped frame member that supports the receiving conveyor 31, the delivery conveyor 32, and the coil fixing device 33, and is formed in a square cross beam shape when viewed from the front by the frame member. Has been.

<Rotating shaft>
The rotation shaft 35 is a shaft member that rotatably supports the support frame body 34 with respect to the column 37, and is provided on the column portions 37 b and 37 b of the left and right columns 37.

<Rotation drive mechanism>
The rotation drive mechanism 36 is a rotation drive device capable of rotating the receiving conveyor 31, the delivery conveyor 32, and the coil fixing device 33 as a whole around the rotation shaft 35 to be reversed. The rotation drive mechanism 36 includes an electric motor 36a, and a gear reduction mechanism (not shown) that rotates the rotation shaft 35 at a low speed by reducing the rotation of the rotor shaft of the electric motor 36a.

<Support>
The support column 37 includes, for example, a base 37a placed on the floor and left and right column portions 37b erected on the base 37a. The column portion 37 b is formed of a plate-like member that supports the support frame body 34 via the rotation shaft 35, and is provided with a rotation drive mechanism 36. The support 37 is provided with a stopper (not shown) for restricting the rotation of the support frame 34 and stopping it at a predetermined position.

<Stopper cylinder>
As shown in FIGS. 1 and 2, the guide shaft 38 is a restraining member for supporting the clamper 33 d of the coil fixing device 33 so as to be able to advance and retract with respect to the support frame 34. The guide shaft 38 includes a cylindrical member 38a disposed on the upper portion of the support frame body 34, and a rod member 38b that is inserted into the cylindrical member 38a so as to be able to advance and retract and has a lower end portion fixed to the clamper 33d. .

<Conveyor position detection sensor>
The conveyor position detection sensor Se2 is a sensor for detecting the receiving conveyor 31 or the sending conveyor 32 indirectly or directly. The conveyor position detection sensor Se2 detects the receiving conveyor 31 and the sending conveyor 32 indirectly by detecting the position of the support frame 34 on which the receiving conveyor 31 and the sending conveyor 32 are provided. The conveyor position detection sensor Se2 includes a contact type touch switch detected by the end of the support frame 34, a non-contact type optical switch, or the like, and the receiving conveyor 31 and the sending conveyor 32 are in a lower position or an upper position. Detect if there is.

≪Transport conveyor≫
As shown in FIG. 1, the carry-out conveyor 4 is configured so that the coil W is connected to the next step of the reversing device 3 (as shown in FIG. 5, connecting portions W1a, W2a are joined to each other and joined to a continuous multi-coiled state (joining step) and have the same structure as the carry-in conveyor 2. The carry-out conveyor 4 is composed of a roller conveyor in which a driving roller is rotated by an electric motor and a coil W placed on the driving roller is transferred. That is, the carry-out conveyor 4 includes a conveyor base 41 arranged on the conveyance route, a plurality of carrier rollers 42 arranged rotatably on the upper surface of the conveyor base 41, and the carrier rollers 42 rotatably supported. And a drive motor mechanism 44 that rotationally drives the carrier roller 42.
The carry-out conveyor 4 is a transfer device that transfers the coil W by the carrier roller 42. The structure of the carry-out conveyor 4 is not particularly limited as long as it is a transfer device that can transfer the coil W.

  The drive motor mechanism 44 includes a roller driving pulley (not shown) for rotating the carrier roller 42, an endless belt 44a hung on the two roller driving pulleys, a motor driving pulley 44b for driving the endless belt 44a, and a motor. And an electric motor 44c that rotationally drives the drive pulley 44b.

  The control device (not shown) controls the devices mounted on the carry-in conveyor 2, the reversing device 3, and the carry-out conveyor 4 to move the coil W to a predetermined position and drive signals to drive the devices. And a controller for turning these devices on and off.

  As shown in FIG. 5, in the production line 100 where the carry-out conveyor 4 is arranged, for example, the coil W on the carry-out conveyor 4 is connected to the sling 12 similarly to the conventional continuous coil production line 100 (see FIG. 11). The crane 11 to be hung and transferred, the work table 13 for temporarily placing the coil W, the turntable 14 for rotating the placed coil W, and the coils W (W1, W2) wound forward and backward And a welding device (not shown) for welding the connecting portions W1a and W2a.

≪Action≫
Next, the operation of the coil reversing device and the production line according to the embodiment of the present invention will be described in the order of work steps with reference mainly to FIGS.

  First, as shown in FIG. 3A, the production line 1 places a coil W formed by winding a strip-shaped rolled steel plate on a carry-in conveyor 2, and the carry-in conveyor 2 uses the reversing device 3. It is made to transfer on the receiving conveyor 31 (coil carrying-in process).

  The control device (not shown) of the production line 1 moves the coil W transferred on the receiving conveyor 31 further in the transport direction (arrow A direction) by the driving roller 31b, and sets a predetermined value on the receiving conveyor 31 set in advance. When the position is reached, as shown in FIG. 3B, the coil stopper 31i is brought into contact with the coil stopper 31i to be stopped (coil reversing device placing step). At the same time, the drive motor mechanism 31d of the receiving conveyor 31 (see FIG. 1) detects that the coil detection sensor Se1 detects that the coil W has reached a predetermined position, whereby the detection signal of the coil detection sensor Se1 is transmitted to the control device (illustrated). The power supply to the electric motor 31g (see FIG. 1) is cut off and stopped.

  Accordingly, as shown in FIG. 3C, the control device (not shown) drives the coil fixing cylinder mechanism 33a of the coil fixing device 33 and moves the coil W onto the receiving conveyor 31 by the clamper 33d. The coil W is pressed to fix the coil W between the clamper 33d and the driving roller 31b of the receiving conveyor 31 (coil holding step).

  Next, as shown in FIG. 3 (d), the control device (not shown in the figure) uses an electric motor 36a (see FIG. 2) of the rotation drive mechanism 36 of the reversing device 3 in a state where the coil W is held by the clamper 33d. By driving, the receiving conveyor 31, the sending conveyor 32, and the support frame 34 are rotated in the clockwise direction (arrow B direction) around the rotation shaft 35 (coil reversing step). As a result, the positions of the receiving conveyor 31 and the sending conveyor 32 of the reversing device 3 are arranged upside down, the sending conveyor 32 is arranged next to the carry-out conveyor 4 in the horizontal direction, and the coil W is opposite. Placed in.

  When the support frame 34 is rotated integrally with the coil W by the reversing device 3 in this way, the conveyor position detection sensor Se2 (see FIG. 2) detects that the support frame 34 is rotated 180 degrees. It is indirectly detected that the coil W is rotated 180 degrees and reversed. Then, as shown in FIG. 4A, the control device (not shown) drives the coil fixing cylinder mechanism 33a of the coil fixing device 33 to lower the clamper 33d, and causes the reversed coil W to move to the clamper 33d. (Coil holding and releasing step).

Next, the control device (not shown) drives the drive motor mechanism 32d (see FIG. 1) of the delivery conveyor 32 to rotationally drive the drive roller 32b. Then, the coil W in the inverted state is transferred from the delivery conveyor 32 onto the carry-out conveyor 4 by the drive roller 32b as shown in FIG. 4B, and is further transferred to the next joining step by the carry-out conveyor 4. It is transferred to the zone (reversing coil unloading process).

In addition, the coil W does not reverse the coil W transferred from the carry-in conveyor 2 onto the delivery conveyor 32 when the reversing device 3 is in the state where the delivery conveyor 32 is on the lower side as shown in FIG. In the state as it is, it can be made to transfer on the delivery conveyor 4 from the delivery conveyor 32 by the drive roller 32b (unloading process of a regular coil).
In addition, in the carrying-out process of the regular coil, the reversing device 3 may be reversed before the next coil W is received, and then the next coil W may be received and dispensed as it is.

  In the production line 1, the reversing device 3 can alternately send the coil W reversed in this way and the in-place coil W without being reversed to the carry-out conveyor 4 to be transferred to the next production process. it can. In other words, the production line 1 includes a process line for reversing the coil W sent from the carry-in conveyor 2 to the reversing device 3 by 180 degrees and transferring the coil W from the feed conveyor 32 onto the carry-out conveyor 4, and a sending conveyor 32 in the reversed state. And a process line for transferring the coil W sent from the carry-in conveyor 2 to the reversing device 3 from the feed conveyor 32 onto the carry-out conveyor 4 without being reversed.

  When the coil W is thus carried out of the reversing device 3, the control device (not shown), as shown in FIG. 4 (c), the electric motor 36a (FIG. 2) of the rotation drive mechanism 36 of the reversing device 3. The receiving conveyor 31, the delivery conveyor 32, and the support frame 34 are rotated in the counterclockwise direction (arrow C direction) around the rotation shaft 35 (reversing step of the reversing device). Thereby, the positions of the receiving conveyor 31 and the sending conveyor 32 of the reversing device 3 are arranged upside down and returned to the original state.

The coil W (W1, W2) arranged in the state of being wound in the forward and reverse directions by the reversing device 3 is a coil W1 wound forward and backward on the carry-out conveyor 4 as shown in FIG. , W2 are alternately placed and sent to the zone where the next joining step is performed. The coil W <b> 2 wound in the reverse (counterclockwise) direction on the carry-out conveyor 4 is transferred to the vicinity of the work table 13 and the like, and then placed on the work table 13 by the crane 11. The upper portion of the coil W1 wound in the positive (clockwise) direction is connected to the connecting portions W1a and W2a by welding.
The coil W (W2) on the work table 13 is stacked in a continuous coil state by welding the connecting portions W1a and W2a of the coils W1 and W2 wound in the forward and reverse directions (coil joining step).
The coil W (multi-coil) joined to the continuous coil is processed into a desired shape by a press machine or the like, or is subjected to plating or the like in the subsequent manufacturing process (coil processing process).

  Thus, each process is completed. Thus, the coil W can be easily reversed automatically by the reversing device 3. For this reason, since the reversing device 3 does not require a reversing operation such as a sling, the reversing device 3 can automatically perform the reversing operation of the coil W easily. The reversing device 3 is effective as a preparatory work for the multi-coil manufacturing process.

≪Modification≫
The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course. In addition, the already demonstrated structure attaches | subjects the same code | symbol and abbreviate | omits the description.
FIG. 6 is a schematic side view showing a modification of the coil reversing device according to the embodiment of the present invention. 7 is a cross-sectional view taken along the line II-II in FIG.

  In the embodiment, the case where one coil fixing device 33 is provided in the reversing device 3 has been described, but the present invention is not limited to this. As shown in FIGS. 6 and 7, the coil fixing device 5 is arranged on the receiving conveyor 31 to hold the coil W from one side in the vertical direction, and the coil fixing device 5 is arranged on the sending conveyor 32 and the coil W And a delivery-side fixing device 52 that holds the device from the other side in the vertical direction.

  In this case, the coil W carried into the reversing device 3 </ b> A includes the clamper 33 d of the coil fixing cylinder mechanism 33 a provided in the receiving side fixing device 51 and the coil fixing cylinder mechanism 33 a provided in the sending side fixing device 52. It is rotated by the rotation drive mechanism 36 while being clamped from above and below by the clamper 33d.

  In the reversing device 3 as in the above embodiment, as shown in FIG. 1, when the coil W is fixed only by the cylinder 33 b of the upper coil fixing device 33, the upper surface of the rollers such as the driving roller 31 b of the receiving conveyor 31. Since the coil W is fixed by being pressed against a (narrow area), an impression may be made on the surface of the coil W by the roller. In particular, in the case of a soft material, the roller is easily indented.

  On the other hand, in the reversing device 3A shown in FIGS. 6 and 7, the coil fixing devices 33 and 33 are arranged above and below, the coil W is clamped by the clampers 33d and 33d from above and below, and the clampers 33d and 33d are flat. The coil W can be held on a smooth surface. For this reason, when the reversing device 3A fixes and reverses the coil W, the surface pressure that presses the coil W is small, so that the surface of the coil W can be prevented from being indented.

  In addition, the reversing device 3A further includes a soft rubber-like plate interposed between the clampers 33d and 33d and the coil W because the holding surfaces of the clampers 33d and 33d that hold the coil W are flat. It is possible to prevent indentation even when a soft material is held.

≪Other modifications≫
As an example, the reversing device 3 shown in FIGS. 1 and 2 rotates the coil W carried by the carry-in conveyor 2 by 180 degrees and reverses it, and then rotates the coil W by 180 degrees in the reverse direction. Although the apparatus provided with the return mechanism for returning to the state has been described, the direction in which the coil W is rotated may be the clockwise direction, the counterclockwise direction, or may be returned by being rotated in the same direction.
In that case, either the receiving conveyor 31 or the sending conveyor 32 may be a conveyor that receives the coil W or a conveyor that sends the coil W.

  In the embodiment, the coil W made of a rolled steel plate has been described as an example. However, the material of the coil W is not particularly limited, and may be appropriately changed.

  Moreover, although the coil stopper 31i of the embodiment and the modified example of FIGS. 1, 2, 6, and 7 has been described in the case where it is provided on the conveying direction side of the driving roller 31b, it is transferred by the receiving conveyor 31 and the sending conveyor 32. Any other structure may be used as long as the coil W can be stopped at a predetermined position.

The coil stopper 31i may be, for example, a stopper that suppresses the movement of the coil W when it protrudes and protrudes toward the coil W transferred from the receiving conveyor 31 or the sending conveyor 32 or the like. In this case, the coil stopper 31i may be able to appear and disappear by electrical control by a gear electric motor mechanism, a solenoid mechanism, or the like.
In this way, the receiving conveyor 31 and the sending conveyor 32 of the reversing devices 3 and 3A can be freely used as receiving and sending conveyors.

DESCRIPTION OF SYMBOLS 1 Production line 2 Carry-in conveyor 3,3A Inversion device (coil inversion device)
4 unloading conveyor 5, 33 coil fixing device 31 receiving conveyor 32 sending conveyor 33a coil fixing cylinder mechanism (cylinder mechanism)
33d Clamper 34 Support frame 35 Rotating shaft 36 Rotating drive mechanism 37 Post 51 Receiving side fixing device 52 Sending side fixing device W Coil Wa Air core

Claims (5)

A coil reversing device for reversing the coil carried in by the carry-in conveyor so that the air core direction of the coil is opposite,
A receiving conveyor on which the coil that is connected to the carry-in conveyor and carried by the carry-in conveyor is placed;
A delivery conveyor arranged to face above the receiving conveyor and delivering the coil in an inverted state;
A coil fixing device for holding the coil placed on the receiving conveyor on at least one of the receiving conveyor and the sending conveyor;
A rotation drive mechanism for rotating and reversing the whole of the receiving conveyor, the delivery conveyor, and the coil fixing device around a rotation axis disposed along a horizontal direction orthogonal to the conveyance direction; With
The coil fixing device releases the coil held on the receiving conveyor or the sending conveyor in the inverted state on the sending conveyor. The coil reversing device according to claim 1, wherein the coil fixing device includes a cylinder mechanism that presses and holds the coil. The coil reversing device includes a support frame that supports the receiving conveyor, the sending conveyor, and the coil fixing device;
The coil reversing device according to claim 2, further comprising: a support column that rotatably supports the support frame and is provided with the rotation drive mechanism. The coil fixing device includes:
A receiving-side fixing device that is arranged on the receiving conveyor and holds the coil from one side;
A delivery-side fixing device disposed on the delivery conveyor and holding the coil from the other side,
The coil carried into the coil reversing device is rotated while being clamped by a clamper of a cylinder mechanism provided in the receiving side fixing device and a clamper of a cylinder mechanism provided in the sending side fixing device. The coil reversing device according to claim 1, wherein the coil reversing device is rotated by a drive mechanism. A production line comprising the coil reversing device according to any one of claims 1 to 4,
The coil reversing device comprises a step of transferring on the delivery conveyor or al transportable out conveyor by inverting the coil sent to the coil reversing device from the input conveyor,
After feeding from the delivery conveyor in the inverted state, transferring the next coil sent from the carry-in conveyor to the delivery conveyor onto the carry-out conveyor without being reversed, and
After the coil is inverted and transferred from the delivery conveyor onto the carry-out conveyor, the receiving conveyor, the delivery conveyor, and the support frame that supports the coil fixing device are rotated, and the receiving conveyor And a step of returning the position of the delivery conveyor upside down,
The manufacturing line , wherein the reversed coil and the non-reversed coil are alternately transferred .

Images