JP6482046B2 - Roller conveyor device and plate material loading / unloading / sorting device equipped with the roller conveyor device - Google Patents

Description

  The present invention relates to a roller conveyor device that conveys a conveyed product, and more specifically to a roller conveyor device that conveys a plate-shaped workpiece, and a plate material carry-in / out / sorting device including the roller conveyor device. .

  Conventionally, a roller conveyor has been used to convey a conveyed product. The roller conveyor has a structure in which a large number of drive rollers are arranged in parallel between two parallel frames. Such a roller conveyor is disclosed in Patent Document 1.

Japanese Patent Application No. 7-315544

  The place where the conveyed product is placed is a comb-shaped conveying device, the conveyed item is placed on the comb teeth portion, and the conveyed item is delivered onto the roller of the roller conveyor described in Patent Document 1. If so, there are limitations. The mounting interval between adjacent teeth of the comb-shaped mounting portion is the same as the mounting interval between adjacent rollers of the roller conveyor, and the tooth portion is inserted between the rollers so that the conveyed product is placed on the rollers. When the apparatus is placed on the conveyor, there is a problem that the comb-shaped conveying device cannot be moved unless the roller conveyor is driven to convey the conveyed object.

  Also, the roller mounting interval is determined so that the conveyed product is always supported by four or more rollers. That is, the length of the transportable object is three times or more the roller mounting interval. In order to transport a short-length transported object with a roller conveyor, the teeth of the comb-shaped mounting portion are narrowed, and the outer diameter of the roller of the roller conveyor is decreased, so that adjacent teeth are attached. Reduce the interval and the interval between adjacent rollers. If it does in this way, the conveyance thing with light weight and short length can be conveyed. However, when a heavy and short transported article is placed on the roller, the roller has a small diameter and the roller is not rigid, and the roller bends greatly. There is a problem that a step cannot be smoothly conveyed because a step is generated between the roller on which the conveyed item is placed and a roller on which the conveyed item is transferred.

  An object of the present invention is to solve the above problems. Specifically, an object of the present invention is to provide a roller conveyor device capable of transporting a transported object having a heavy weight and a short length in the transport direction.

The invention described in claim 1 for solving the above-described problem is that a plate material cut by a plate material processing machine is scooped out by a comb-shaped mounting portion, and the above-described mounting portion is placed between adjacent conveyance rollers. A roller conveyor device that transports the placed plate material after placing the plate material that has been inserted from above and scooped out by the placement section onto the transport roller, and that transports the plate material. 1 conveyance roller, a 1st end support part which supports both ends of the 1st conveyance roller rotatably, a 1st drive part which rotates the 1st conveyance roller, and rotationally drives the 1st conveyance roller A first driving source that generates a driving force for performing the operation and a first support portion that supports a portion other than both ends of the first transport roller from below , and the first support portion is a pair of rotatable rollers And the pair of rollers has a rotating shaft. The centers of the rotation axes are different from each other when viewed from the direction, and the outer diameters of the pair of rollers are configured such that a part of the outer diameters overlap each other when viewed from the direction of the rotation axes. One transport roller is supported by the pair of rollers from below .

According to a second aspect of the present invention, a plurality of second transport rollers that transport the plate material placed on the first transport roller in the same direction as the transport direction of the first transport roller, and the second transport rollers A second end support unit that rotatably supports both ends, a second drive unit that rotates the second transport roller, and a second support unit that supports the second transport roller from below. The second transport roller can be moved up and down to a transport position for transporting the plate material and a retracted position below the first transport roller, and the second transport roller is provided between the first transport rollers adjacent to each other. The plate member can be placed on the first transport roller by the comb-shaped mounting portion when the second transport roller is in the retracted position, and the second support portion is a pair of rotatable rollers. And having the second support portion The pair of rollers is configured such that the centers of the rotation shafts are different from each other when viewed from the direction of the rotation shaft, and the outer diameters of the pair of rollers included in the second support portion are mutually different when viewed from the direction of the rotation shaft Is it configured such that a part of the outer diameter overlaps, and supports the second transport roller from below with a pair of rollers included in the second support portion, and is the second transport roller driven to rotate by the first drive source? Alternatively, the second transport roller is rotationally driven by a second drive source provided to rotationally drive the second transport roller.

According to a third aspect of the present invention, a roller conveyor device is provided, and a holding portion that holds a part of the plate material placed on the first conveying roller of the roller conveyor device is raised and lowered above the roller conveyor device. The holding portion includes an openable / closable claw for holding a part of the plate material, and the claw is configured to be insertable between the first conveyance rollers adjacent to each other .

According to the first aspect of the present invention, by providing the support portion that supports the conveyance roller supported at both ends from below, the number of portions to be supported is increased, and the support interval can be shortened. The moment is reduced, and the outer diameter of the transport roller can be reduced. In addition, by providing a support portion composed of a pair of rollers that support the transport roller from below, the rotational resistance of the transport roller can be reduced. Thereby, the capacity | capacitance of the motor for conveyance can be made small.

According to the second aspect of the present invention, by providing a transport roller that can be moved up and down between the transport rollers, the mounting interval of the transport rollers can be halved, so the length in the transport direction is further short. It becomes possible to transport the conveyed product. In addition, by providing a support portion composed of a pair of rollers that support the transport roller from below, the rotational resistance of the transport roller can be reduced. Thereby, the capacity | capacitance of the motor for conveyance can be made small.

According to invention of Claim 3, a board | plate material is carried in a board | plate material processing machine with the conveying apparatus which has a mounting part, the processed board | plate material is taken out by the mounting part of a conveying apparatus, and is mounted on the conveyance roller of a roller conveyor apparatus. it can. In addition, since the product and the remaining material are placed on a conveyance roller having sufficient rigidity, the product and the remaining material are placed horizontally without being inclined. Thereby, the remaining material can be held and lifted by the holding portion, and can be smoothly sorted into the product and the remaining material.

It is explanatory drawing which classified and showed the processed board | plate material into the product and the remaining material. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view conceptually and schematically showing a plate material carry-in / out / sorting apparatus according to Embodiment 1; FIG. 3 is a front view conceptually and schematically showing the same (FIG. 3 is a view of FIG. 2 as seen from the direction of a white arrow). FIG. 4 is a side view conceptually and schematically showing the above (FIG. 4 is a view of FIG. 3 as seen from the direction of a white arrow). It is side surface sectional drawing which showed the rotation drive device notionally and schematically. It is the top view which showed the mounting part notionally and schematically. It is the front view which showed the same as the above conceptually and schematically. It is side surface sectional drawing which showed the same as the above conceptually. It is front sectional drawing which showed the single picking apparatus and the raising / lowering stand notionally and schematically. It is the front view which showed the stopper notionally and schematically. It is the plane sectional view which showed the stopper and the remaining material conveyance device notionally and schematically. It is the front view which showed the roller conveyor apparatus notionally and schematically. It is the top view which showed the same as the above conceptually and schematically. It is the side view which showed the same as above conceptually and schematically. It is the rear view which showed the same as the above conceptually and schematically. FIG. 16 is a cross-sectional view conceptually and schematically showing the above (FIG. 16 is a view of FIG. 14 viewed from the direction of a white arrow). It is explanatory drawing of the procedure which carries in a board | plate material with respect to a board | plate material processing machine. It is explanatory drawing of the procedure which carries out and sorts the processed board | plate material. It is explanatory drawing of the procedure which loads a remaining material on a remaining material conveyance apparatus. It is the top view which showed the roller conveyor apparatus of Example 2 notionally and schematically. It is side surface sectional drawing which showed the same as the above conceptually.

  The plate material loading / unloading / sorting device loads the plate material P into the plate material processing machine 250, unloads the plate material W processed by the plate material processing machine 250 (no micro-connecting portion), and uses the plate material W as the product S and the remaining material. Sorting into Z. As the plate material P processed by the plate material processing machine 250, a regular plate material P is mainly used. And since the edge of the fixed-size board | plate material P is bent or dented, the edge of the board | plate material P is left like FIG. 1, and the product S is cut off. Therefore, the peripheral portion of the plate material P always becomes the remaining material Z. The remaining material Z between the product S and the product S is connected to the remaining material Z in the peripheral portion. The processed plate material W is mainly divided into a remaining material Z (skeleton) including a peripheral portion of the plate material W and connected to each other and a plurality of products S.

  After holding the peripheral portion of the plate material P, that is, the portion of the remaining material Z with the holder, the product S and the remaining material Z are moved in a direction that is relatively separated from each other, and the plate material W is sorted into the product S and the remaining material Z. . As a method of holding the peripheral portion so-called residual material Z of the plate material P, a method of adsorbing and holding the residual material Z with a suction pad, a residual material Z of the peripheral portion of the plate material P, and between the product S and the product S A method of holding the residual material Z by sucking with a suction pad, a method of holding the front and back surfaces of the residual material Z, or processing the portion of the residual material Z and holding the residual material Z by using the processing There are ways to do it.

  In the following embodiments, a method of holding the remaining material Z by using a through-hole formed in the peripheral portion of the plate material P by a plate material processing machine will be described. Hereinafter, the penetrating round hole will be referred to as a hole H for explanation.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. A laser processing machine is conceptually illustrated as an example of the plate material processing machine according to the embodiment of the present invention. The plate material processing machine is not limited to a laser processing machine, but can be easily applied to other gas cutting, plasma processing machines, fiber laser processing machines, cutting devices using thermal cutting methods such as direct diode laser processing machines, and water jet processing machines. Is applicable. For convenience of explanation, a pallet on which a plurality of plate materials P are placed in a stacked manner is referred to as a material pallet 12, and a pallet on which the plate material P is placed to position the plate material P is referred to as a positioning pallet 16.

  The board | plate material carrying in / out sorting device provided with the 1st roller conveyor apparatus 800 of Example 1 is demonstrated with reference to FIGS.

  As shown in FIGS. 2 to 4, the plate material loading / unloading / sorting device includes a plurality of storage shelves 5 that allow the material pallet 12 to enter and exit, and a storage shelf 9 that allows the positioning pallet 16 to enter and exit the shelf frame 1. I have. Each pallet is stored in each storage shelf. A holding unit 400 that holds and sorts the processed plate material W is provided below the lowermost storage shelf 5. A first roller conveyor device 800 is provided below the holding unit 400. A storage shelf 9 that stores the positioning pallet 16 is provided below the first roller conveyor device 800. Below the storage shelf 9 is provided a storage shelf 10 through which each pallet passes when each pallet is transferred from the lifting platform 55 to the loading table 260.

  On one side of the shelf frame 1, a lifting platform 55 that can be moved up and down is provided. A loading table 260 is provided adjacent to the shelf frame 1 on the opposite side of the lifting frame 55 with respect to the shelf frame 1. The plate material processing machine 250 is installed on the opposite side of the shelf frame 1 with respect to the lifting platform 55 (in front of the lifting platform 55).

  The shelf frame 1 has an opening for putting each pallet in and out. Inside the shelf frame 1, a plurality of storage shelves are provided symmetrically in the vertical direction. The shelf frame 1 will be described by referring to the side on which the elevator 55 is raised and lowered as the front side and the back side as the rear side.

  A stopper 680 is provided at the lower part of the front left and right pillars 2 of the shelf frame 1. In addition, a remaining material conveyance device 700 is installed on the floor below the storage shelf 10.

  Guide rails 3 for guiding the lifting platform 55 are attached to the left and right columns 2 provided on the front side of the shelf frame 1.

  The lifting / lowering base 55 includes a first transfer mechanism 64 that allows each pallet to enter and leave the storage shelf. The forward / backward moving part 111 is provided below the first transfer mechanism 64 or below the lifting platform 55 so as to be rotatable or rotatable around a vertical axis.

  A single picking device 79 for picking up one piece of the plate material P placed on the material pallet 12 is provided at the upper part of the lifting platform 55.

  The material pallet 12 is provided with a plate having recesses 17 on the left and right of the front part and a plate having recesses 18 on the left and right of the rear part. In addition, a plurality of wheels 19 are provided on the side surface, and the storage rack 5 can be rolled and transferred by the first transfer mechanism 64.

  The material pallet 12 is provided with a plurality of guide bars 11 for placing the plate material P in a stacked manner at a fixed position. The plate material P is stacked in the guide bar 11 of the material pallet 12.

  The positioning pallet 16 is provided with a plate having recesses 17 on the left and right of the front part, and a plate having recesses 18 on the left and right of the rear part. In addition, a plurality of wheels 19 are provided on the side surface, and the storage rack 9 can be rolled and transferred by the first transfer mechanism 64.

  A plurality of rollers 20 are arranged on the upper surface of the positioning pallet 16 in parallel with the longitudinal direction parallel to the transfer direction of the positioning pallet 16 and with a gap therebetween. The roller 20 is rotatably attached by a support shaft 21 between a pair of side plates 22 that are spaced apart from each other in parallel.

  One plate material P is placed on the roller 20. The rollers 20 are provided so as to form spaces 23 into which the mounting rods 115 of the mounting portion 112 can be inserted between the rollers 20 adjacent to each other. The mounting rod 115 of the mounting portion 112 can be inserted into the space 23 so that the plate material P can be mounted or the plate material P can be scooped up.

  As shown in FIG. 3, when the plate material P is placed on the roller 20 of the positioning pallet 16 stored in the storage shelf 9, the plate material P is moved from a direction orthogonal to the transfer direction of the positioning pallet 16. A device 30 is provided. Further, the moving device 30 may be arranged so as to move the plate material P in a direction crossing the transfer direction of the positioning pallet 16.

  The moving device 30 is mainly composed of a pusher 25 that pushes the end face of the plate material P and a cylinder 24 that operates the pusher 25. And the board | plate material stopper 26 for positioning in the direction orthogonal to the transfer direction of the positioning pallet 16 is provided in the shelf frame 1 in the position where the end surface of the board | plate material P pressed by the pusher 25 contact | abuts. The cylinder 24 is provided on the shelf frame 1, is driven by pneumatic pressure, and includes pneumatic piping and valves not shown.

  Positioning in the direction orthogonal to the transfer direction of the positioning pallet 16 is performed by pushing the end of the plate material P on the roller 20 by the pusher 25 and contacting the end surface on the opposite side of the plate material P to the plate material stopper 26. Thereafter, the end of the plate material P in the direction orthogonal to the transfer direction of the positioning pallet 16 is detected by a sensor (not shown). Then, when the plate material P on the roller 20 of the positioning pallet 16 is squeezed by the mounting rod 115, the mounting portion 112 is moved in a direction parallel to the transfer direction of the positioning pallet 16, and the end portion (plate material) of the plate material P is detected by the sensor. The positioning rod 115 is positioned so that the position of the mounting rod 115 is always the same with respect to the long side of P, and positioning of the positioning pallet 16 is performed. The moving device 30 may be positioned by gripping the plate material P with a gripping tool (not shown) and moving the gripping tool so that the end surface of the plate material P contacts the plate material stopper 26.

  When positioning is performed in this manner, the plate material P is placed on the placement rod 115 in a state in which the plate material P is positioned when the plate material P is rolled up by the placement rod 115. And the board | plate material P on the mounting rod 115 can be correctly mounted in the fixed position of the board | plate material processing machine 250. FIG.

  On the upper surface of the shelf frame 1, an elevating mechanism 181 that elevates the elevating platform 55 is provided. As shown in FIGS. 2 to 4, the elevating mechanism 181 mainly includes two drive shafts 183, each sprocket, a chain 184, and a reduction gear 182 with a motor. Two drive shafts 183 are rotatably disposed on the top surface of the shelf frame 1. A drive sprocket 185 and a drive sprocket 186 are fixed to the left and right ends of the two drive shafts 183, respectively. An endless chain 189 is stretched between the drive sprocket 185 inside the drive shaft 183 (center side of the shelf frame 1) and the drive sprocket 188 fixed to the output shafts on both sides of the reduction gear 182 with a motor. . A rotatable driven sprocket 187 is provided below the column 2 of the shelf frame 1 below the drive sprocket 186 outside the drive shaft 183 (on the side of the shelf frame 1).

  The chain 184 is stretched over a drive sprocket 186 and a driven sprocket 187 outside the drive shaft 183, and both ends of the chain 184 are connected to the upper and lower parts of the lifting platform 55, respectively. When the motor-equipped speed reducer 182 is driven to rotate forward and backward, the lifting platform 55 can move (elevate) along the guide rail 3 provided on the column 2. Since the elevating mechanism 181 is conventionally known, a detailed configuration and description of the operation are omitted.

  The lifting platform 55 will be described with reference to FIGS. The lifting platform 55 includes a plurality of guide rollers 56 that roll along the guide rails 3 provided on the left and right columns 2 on the front surface of the shelf frame 1. A traveling surface 57 on which the wheel 19 rolls when the material pallet 12 is transferred by the first transfer mechanism 64 is provided in the left and right sides of the elevator 55.

  In the first transfer mechanism 64, so-called chain conveyors are arranged symmetrically inside the lifting platform 55 so as to be parallel to the transfer direction of the material pallet 12. The first transfer mechanism 64 includes a drive sprocket 69, a plurality of driven sprockets 70, a tension sprocket 71, and an endless chain 66. An endless chain 66 is spanned between the drive sprocket 69, the plurality of driven sprockets 70, and the tension sprocket 71.

  The endless chain 66 is provided with a protruding plate 67 and a protruding plate 68. As shown in FIG. 9, the left and right drive sprockets 69 are fixed to the drive shaft 72, and the drive shaft 72 is rotatably fixed to the side plates on both sides of the lifting platform 55. A sprocket 73 is fixed to the drive shaft 72. The driven sprocket 70 is rotatably fixed to the side plate of the lifting platform 55. The servo motor 76 is disposed in the vicinity of the drive shaft 72 and on the lifting platform 55. An endless chain 75 is stretched between the sprocket 74 fixed to the output shaft of the servo motor 76 and the sprocket 73.

  When the lifting platform 55 stops the storage shelf 5 in which the material pallet 12 of the shelf frame 1 is stored and the running surface 57 provided on the lifting platform 55 so that the material pallet 12 can be transferred, the first The transfer mechanism 64 can transfer the material pallet 12 as the pallet wheel 19 rolls between the storage shelf 5 and the traveling surface 57. A gap is provided between the endless chain 66 and the plate on which the concave portions of the material pallet 12 are provided so as not to interfere with each other. As a result, the endless chain 66 and the driven sprocket 70 do not interfere with the plate provided on the material pallet 12 when the lifting platform 55 moves up and down. The protrusion plate 67 and the protrusion plate 68 provided on the side surface of the endless chain 66 are positioned with respect to each other so as to be fitted into the concave portion of the plate of the material pallet 12 when the endless chain 66 rotates. ing.

  Next, a procedure for transferring the material pallet 12 to the lifting platform 55 by the first transfer mechanism 64 will be described. First, the elevator 55 moves to the storage shelf 5 in which the material pallet 12 is stored. When the servo motor 76 is driven to rotate, the endless chain 66 is driven, and the protruding plate 67 fits into the concave portions 17 provided on the front left and right plates of the material pallet 12 stored in the storage shelf 5 of the shelf frame 1. Then, the material pallet 12 is pulled out, and the projection plate 68 fits into the recesses 18 provided on the left and right plates of the material pallet 12. Further, the material pallet 12 is pulled out and transferred to the lifting platform 55. In this manner, the material pallet 12 can be transferred by rotationally driving the servo motor 76. Further, when the servo motor 76 is driven in reverse rotation, the material pallet 12 can be transferred in the reverse direction and returned to the original storage shelf 5. Each pallet described later can also be transferred by the first transfer mechanism 64 in the same manner as the material pallet 12.

  When the lifting platform 55 moves up and down, the projection plate 67 and the projection plate 68 are in the retracted position, and the endless chain 66, the projection plate 67, and the projection plate 68 of the first transfer mechanism 64 are disposed in the recess 17 of the material pallet 12. The positional relationship does not interfere with.

  As shown in FIG. 5, a rotation drive device 58 that rotationally drives a back-and-forth movement unit 111 described below is provided below the first transfer mechanism 64 or below the lifting platform 55. The rotary drive device 58 is mainly composed of a vertical shaft 59, a pulley 60, a pulley 61, an endless belt 62, and a motor 63. The vertical shaft 59 is fixed to the lifting / lowering base 55 so that the forward / backward moving part 111 can rotate or rotate freely. A longitudinally moving part 111 is attached to the lower part of the vertical shaft 59. A pulley 60 is fixed to the upper part of the vertical shaft 59. A motor 63 is attached to the elevator 55 in the vicinity of the vertical shaft 59, and a pulley 61 is fixed to the output shaft of the motor 63. An endless belt 62 is stretched between the pulley 60 and the pulley 61. When the motor 63 is driven to rotate in the forward / reverse direction, the forward / backward moving portion 111 attached to the vertical shaft 59 rotates. The motor 63 may be a servo motor.

  As shown in FIGS. 6 to 8, at the lower part of the vertical shaft 59, there is provided a forward / backward moving portion 111 that can move in the front-rear direction a placement portion 112 in which the placement portion has a comb-like shape. . The forward / backward moving part 111 is a so-called slide fork. The longitudinally moving part 111 is mainly composed of a fixed fork 121, an intermediate fork 131, a tip fork 141, and a drive part. A pair of guide roller attachment members 122 are attached to the lower surface of the fixed fork 121 so as to be parallel to each other and parallel to the direction of expansion and contraction of the longitudinal movement portion 111. Inside the pair of guide roller mounting members 122, a plurality of horizontal axis guide rollers 123 that are rotatable around a horizontal axis and a plurality of vertical axis guide rollers 124 that are rotatable around a vertical axis are attached.

  A pair of rails 132 are fixed to the intermediate fork 131 in parallel inside the pair of guide roller mounting members 122. Outer grooves 133 are formed on the outer surfaces of the pair of rails 132, the vertical shaft guide rollers 124 are in contact with the outer groove inner side surfaces 134 of the outer grooves 133, and the horizontal axis guide rollers 123 are formed on the outer groove upper and lower surfaces 135. Touch. Inner grooves 136 are formed on the inner surfaces of the pair of rails 132, the vertical shaft guide rollers 144 are in contact with the inner groove outer surface 137 of the inner grooves 136, and the horizontal axis guide rollers 143 are in contact with the inner groove upper and lower surfaces 138. Touch.

  A pair of guide roller attachment members 142 are attached to both sides of the upper surface of the tip fork 141 so as to be parallel to and parallel to the expansion / contraction direction of the longitudinal movement portion 111. A plurality of horizontal axis guide rollers 143 that are rotatable around a horizontal axis and a plurality of vertical axis guide rollers 144 that are rotatable around a vertical axis are attached to the outside of the pair of guide roller mounting members 142. Even when the intermediate fork 131 and the front fork 141 extend or retract to the forward end or the rearward end, each horizontal axis guide roller and each vertical axis guide roller are arranged so as to always contact the groove on each side. ing.

  The sprocket 151 and the sprocket 152 are rotatably attached to a pair of metal fittings 154 by a support shaft, and the pair of metal fittings 154 are attached to the lower surface of the intermediate fork 131. The sprocket 151 and the sprocket 152 are attached to both ends of the intermediate fork 131 at positions shifted from each other, and the intermediate fork 131 is provided with an opening for attaching each sprocket. A chain fixing bracket 157 and a chain fixing bracket 159 are attached to both ends of the fixing fork 121 at positions shifted from each other on the lower surface of the fixing fork 121 so as to face each other.

  Further, a chain fixing bracket 158 and a chain fixing bracket 160 are attached to both ends of the tip fork 141 at positions shifted from each other on the upper surface of the tip fork 141 so as to face each other. The chain 155 is parallel to the expansion / contraction direction of the forward / backward moving portion 111, and the end of the chain 155 is fixed to the chain fixing bracket 157, and spanned on the sprocket 151, and the other end of the chain 155 is connected to the chain fixing bracket 158. It is fixed to. In addition, the chain 155 is parallel to the expansion / contraction direction of the forward / backward moving part 111, and the end of the chain 155 is fixed to the chain fixing bracket 159, and spanned on the sprocket 152. It is fixed to.

  The rack 161 is attached to the upper surface of the intermediate fork 131 with the tooth surface facing upward in parallel with the expansion / contraction direction of the longitudinal movement portion 111. On the fixed fork 121, a pinion 162 and a pinion 163 having the same number of teeth are attached to a pair of side plates 169 by pivots so as to be rotatable. The pinion 162 and the pinion 163 are arranged so as to mesh with the rack 161. Between the pinion 162 and the pinion 163, a gear 164 is rotatably fixed to the pair of side plates 169 by a support shaft. The pinion 162 meshes with the gear 164, and the gear 164 meshes with the pinion 163. A gear 165 is fixed to the drive shaft 170 above the gear 164, and the drive shaft 170 is rotatably attached to the side plate 169. The gear 165 is disposed so as to mesh with the gear 164. The drive shaft 170 is connected to the output shaft of a servo motor 172 attached to the side surface of the fixed fork 121 via a coupling 171.

  A placement portion 112 is provided at the lower portion of the tip fork 141. The mounting portion 112 is formed by arranging a plurality of mounting rods 115 in a comb-like shape on the mounting rod mounting member 116. The mounting rods 115 are fixed at right angles to the longitudinal direction of the mounting rod mounting member 116 so as to be parallel to each other at the same mounting interval. Further, the mounting rod 115 is mounted substantially parallel to the expansion / contraction direction of the forward / backward moving portion 111 and substantially horizontally. The mounting rod attachment member 116 is attached to the lower surface of the tip fork 141. The plate material P, the plate material W, the remaining material Z, or the product S is placed on the plurality of placement rods 115. The plate material P, the plate material W, or the remaining material Z is placed so that a space 117 (see FIG. 8) is formed between the surface of the placement rod mounting member 116 to which the placement rod 115 is connected and the end portion of each plate material. It is placed on the bar 115.

  The mounting interval of the mounting bar 115 is several times wider than the width (plate thickness) of the skid 251 so that the mounting width of the mounting bar 115 on the mounting bar 115 is the same as that of the skid 251 (Kenyama) of the plate processing machine 250. It has become. Thus, the processed micro jointless plate material W placed on the skid 251 can be scooped out and carried out by the placement rod 115.

  The servo motor 172 is driven to rotate, and for example, the gear 165 rotates counterclockwise in FIG. The gear 164 is rotated by the rotation of the gear 165, and the pinion 162 and the pinion 163 are rotated. Then, the intermediate fork 131 moves forward with respect to the fixed fork 121 via the rack 161 (moves in the direction toward the front end side of the mounting rod 115 in FIG. 8). At this time, the chain fixing bracket 158 fixed to the end of the chain 155 is pulled by the sprocket 151, and the tip fork 141 moves forward with respect to the intermediate fork 131 (moves toward the tip of the mounting rod 115 in FIG. 8). Further, the servo motor 172 is driven to rotate, and for example, the gear 165 rotates clockwise in FIG. The gear 164 is rotated by the rotation of the gear 165, and the pinion 162 and the pinion 163 are rotated. Then, the intermediate fork 131 moves backward with respect to the fixed fork 121 via the rack 161 (moves in the direction of the base side of the mounting rod 115 in FIG. 8). At this time, the chain fixing bracket 160 fixed to the end of the chain 155 is pulled by the sprocket 152, and the tip fork 141 moves backward with respect to the intermediate fork 131 (moves in the direction of the base side of the mounting rod 115 in FIG. 8).

  A rotary drive device 58 that rotationally drives the longitudinal movement unit 111 is provided at the lower part of the lifting platform 55. The lifting platform 55 is configured to be lifted and lowered by a lifting mechanism 181. A placement portion 112 having a comb-like shape is provided at a position where the forward / backward movement portion 111 is movable. The placement unit 112 is configured to be able to move up and down, move back and forth, and rotate. The placement unit 112 places the plate material P on the placement unit 112 and conveys the plate material P to the plate material processing machine 250 installed around the lifting platform 55. It has a function as a plate material transport device.

  The loading and unloading of the plate material P, the plate material W, the product S, or the remaining material Z with respect to the positioning pallet 16 is performed by the vertical movement of the mounting portion 112 by the lifting platform 55 and the back-and-forth movement of the mounting portion 112 by the longitudinal movement portion 111. Can be done in combination. In addition, the placement unit 112 is provided so that the plate material P can be placed on the plate material processing machine 250 and the processed plate material W can be taken out. The placement unit 112 is configured to be able to carry in / out the plate material P, the plate material W, the product S, or the remaining material Z with respect to the first roller conveyor device 800 and the second roller conveyor device 835 described later.

  As shown in FIG. 4 and FIG. 9, a single-sheet taking device 79 that picks up one piece of the plate material P placed on the material pallet 12 is provided at the upper part of the lifting platform 55. The single sheet pick-up device 79 includes a vertical movement unit 80 and a suction unit 85.

  The vertical movement unit 80 includes a vertical cylinder 81, a connecting jig 82, a vertical movement unit frame 83, and a pair of guides 84. An upper and lower cylinder 81 is attached to the upper surface of the vertical movement unit frame 83 with the rod facing downward, and a pair of guides 84 are attached to both sides thereof.

  The suction portion 85 includes a plurality of vacuum pads 86, a suction frame 87, and a pair of guide bars 88. A suction frame 87 is attached to the connecting jig 82 attached to the tip of the rod of the upper and lower cylinders 81. The suction frame 87 is guided by a guide 84 that is installed in parallel to the upper and lower cylinders 81 with a guide bar 88 installed vertically on the upper surface of the suction frame 87.

  A plurality of vacuum pads 86 are attached to the lower surface of the suction frame 87 with the suction surface facing downward. The number of vacuum pads 86 can be appropriately changed according to the size and weight of the plate material P. The vertical movement unit 80 can drive the vertical cylinder 81 to raise and lower the suction unit 85. The upper and lower cylinders 81 are driven by pneumatic pressure, and include pneumatic piping and valves not shown. The vacuum pad 86 holds the plate material P by a vacuum, and includes vacuum piping and valves not shown.

  The single sheet pick-up device 79 is configured to hold the plate material P on the material pallet 12 drawn below the suction part 85 by the first transfer mechanism 64 by the suction part 85 and to pick one sheet. Further, the plate material P that has been picked up is configured so as to be placed on the positioning pallet 16 that is drawn below the suction portion 85 by the first transfer mechanism 64.

  As shown in FIGS. 3 and 4, the holding unit 400 mainly includes a 3-jaw chuck 401, a lifting frame 721, four guides 722, each sprocket, a drive shaft 728, two chains 726, and a motor 729. Has been. The four pillars 2 of the shelf frame 1 are provided with guides 722 that can move in the vertical direction. The guide 722 is composed of a rail and a movable part, and the rail is attached to the column 2 of the shelf frame 1, and the elevating frame 721 is attached to the movable part.

  A three-claw chuck 401 is attached to the lifting frame 721 so that the claw of the three-claw chuck 401 faces downward. The inner nail 402 is attached to the nail. A plurality of holes H into which the inner claws 402 are inserted are processed at appropriate intervals on the peripheral edge of the plate material P when the product S is processed by the plate material processing machine. The hole H is machined to a position where it does not interfere with a conveyance roller, which will be described later, when the inner claw 402 of the 3-jaw chuck 401 holds the remaining material Z. The 3-jaw chuck 401 inserts the inner claw 402 into the hole H, opens the inner claw 402 and holds the remaining material Z. When the processed plate material W is placed on the first roller conveyor device 800 or the second roller conveyor device 835 and sorted, the center of the hole H processed in the peripheral portion of the plate material P and the lifting frame 721 The three-claw chuck 401 is arranged so that the axis of the attached three-claw chuck 401 coincides vertically.

  Sprockets 723 are respectively provided below the guides 722 attached to the left and right pillars 2 on the rear side of the shelf frame 1, and sprockets 724 are respectively provided above the guides 722 so that the movable parts of the guides 722 move up and down. Are also provided at positions that do not interfere with each other. The lower sprocket 723 is fixed to the pillars 2 on both sides of the shelf frame 1 so as to be rotatable by metal fittings.

  A bearing 727 is attached above one guide 722, and a motor 729 is attached above the other guide 722 by a bracket (not shown). One end of the drive shaft 728 is fixed to the hollow shaft of the motor 729. The other end of the drive shaft 728 is rotatably supported by a bearing 727. Upper sprockets 724 are fixed to the left and right sides of the drive shaft 728, respectively.

  Sprockets 725 are rotatably fixed to the left and right beam members provided on the front column 2 and the rear column 2 of the shelf frame 1 by brackets (not shown), respectively.

  One end of the chain 726 is connected to the upper part of the lifting frame 721, spans the sprocket 725, the sprocket 724, and the sprocket 723, and the other end of the chain 726 is connected to the lower part of the lifting frame 721. In this way, the two right and left chains 726 are spanned over each sprocket, and the lifting frame 721 is suspended at two locations.

  When the motor 729 is driven to rotate in the forward and reverse directions, the drive shaft 728 rotates, and an elevating frame 721 suspended by a chain 726 spanned between the sprocket 725 and the upper sprocket 724 provided on the drive shaft 728 and the lower sprocket 723. Are guided by the guide 722 and moved up and down in the vertical direction.

  The stopper 680 will be described with reference to FIG. The stopper 680 includes a claw 681 and a rectangular tube-shaped claw attachment beam 682. A plurality of claws 681 are arranged in parallel on the claw attachment beam 682. Both ends of the claw mounting beam 682 are fixed to the front pillar 2 of the shelf frame 1. The claw 681 is attached to the claw attachment beam 682 upward so that the space 683 through which the mounting rod 115 passes is formed between the claw 681 adjacent to each other. When the processed plate material W is taken out from the plate material processing machine 250, a space 117 (see FIG. 8) is formed between the surface of the mounting rod mounting member 116 to which the mounting rod 115 is connected and the end portion of the plate material W. The plate material W is placed on the placing rod 115. Even when the sorted residual material Z is placed on the mounting rod 115, a space 117 is formed between the surface of the mounting rod mounting member 116 to which the mounting rod 115 is connected and the end of the remaining material Z. There is.

  The placing portion 112 moves forward by the back and forth moving portion 111, and the remaining material Z placed on the placing rod 115 passes over the claw 681. And when the raising / lowering stand 55 descend | falls, a back-and-forth moving part is in the position where the nail | claw 681 enters into the space 117 between the surface of the mounting rod attachment material 116 to which the mounting rod 115 is connected, and the edge part of the remaining material Z. 111 stops. The lifting platform 55 is lowered to a position where the remaining material Z on the mounting rod 115 is squeezed by the claws 681. Thereafter, when the mounting portion 112 is retracted (moved in the direction of the lifting platform 55) by the forward / backward moving portion 111, the remaining material Z is caught by the claw 681 and stopped, and the remaining material Z is scraped off from the mounting rod 115, which will be described later. It is stacked on the remaining material conveying device 700.

  As shown in FIGS. 4 and 11, a remaining material transfer device 700 is installed on the floor below the shelf frame 1. The remaining material conveyance device 700 is a so-called chain conveyor. The remaining material conveying device 700 conveys the remaining material Z, which is scraped by the stopper 680 and stacked on the chain, from the inside of the shelf frame 1 to the lower side of the loading table 260 by the synchronous operation of the four rows of chain conveyors. It can be taken out by a forklift (not shown) outside 1.

  A bearing 703 is attached to one end of a conveyor frame 701 composed of a square pipe and a plate, and a tension sprocket 710 is attached to the other end of the conveyor frame 701 so as to be rotatable and movable in the longitudinal direction of the conveyor frame 701. The tension sprocket 710 is moved in the longitudinal direction of the conveyor frame 701 to adjust the tension of the endless chain 706. The drive shaft 704 is rotatably supported by the bearing 703. A drive sprocket 702 is fixed to the drive shaft 704. An endless chain 706 is spanned between the drive sprocket 702 and the tension sprocket 710. A guide for guiding the endless chain 706 is provided on the upper surface of the conveyor frame 701. A guide for guiding the endless chain 706 is also provided in the square pipe of the conveyor frame 701.

  Four rows of chain conveyors as described above are arranged. A motor 705 is provided on the end conveyor frame 701. The output shaft of the motor 705 and the drive shaft 704 are connected by a coupling 712.

  When the remaining material Z scraped off by the stopper 680 is accumulated on the endless chain 706 of the remaining material conveying device 700 and becomes full, the motor 705 is driven to rotate and the remaining material Z can be automatically conveyed to the unloading position.

  Next, the 1st roller conveyor apparatus 800 of this invention is demonstrated with reference to FIGS. The first roller conveyor device 800 places the processed plate material W as a conveyed product on the first conveying roller 807 and sorts it by the holding unit 400, or conveys the sorted product S (conveyed material). be able to.

  A frame 801 having a frame structure is attached to the pillar 2. The three frames 801 </ b> A to 801 </ b> C of the frame 801 are disposed in parallel and horizontally in a direction perpendicular to the direction in which the pallet is transferred by the first transfer mechanism 64 of the lifting platform 55. Both ends of the frames 801A to 801C are respectively fixed to frames 801D provided in the same direction as the direction in which the pallet is transferred by the first transfer mechanism 64 of the lifting platform 55. The frames 801D are fixed to the pillars 2 respectively.

  A comb-tooth side plate 802 is attached to the frame 801A on the lifting platform 55 side (front side). The comb-tooth side plate 802 is a plate material having a rectangular cross section, is long in the longitudinal direction of the frame 801A, and has a comb-tooth shape. A plurality of equally spaced cuts are machined on the upper side in the longitudinal direction. In the space 806 (see FIG. 12) formed by the cutting, a mounting bar 115 can be inserted in order to place the processed plate material W on the first roller conveyor device 800. A plurality of holes are formed at equal intervals in the tooth portion between the notches, and bearings 804 are attached to the holes. A space 806 into which the mounting rod 115 of the mounting unit 112 can be inserted is provided between the adjacent bearings 804.

  A drive side plate 803 is attached to the frame 801C on the loading table 260 side (rear side). The driving side plate 803 is a plate member having a rectangular cross section and extends in the longitudinal direction of the frame 801C. A plurality of holes are formed at equal intervals in the longitudinal direction on the upper side of the drive side plate 803, and a bearing 805 is attached to the holes.

  A plurality of first transport rollers 807 are installed on a plurality of bearings 804 attached to the comb-tooth side plate 802 and a plurality of bearings 805 attached to the drive side plate 803, respectively. Both ends of the first transport roller 807 are rotatably supported by a bearing 804 and a bearing 805 as first end support portions. The 1st conveyance roller 807 is arrange | positioned in parallel at equal intervals so that the product S can be conveyed in the direction orthogonal to the direction which conveys a pallet with the 1st transfer mechanism 64 of the raising / lowering stand 55. FIG.

  The first roller conveyor device 800 includes a first drive unit 828 that rotates each first transport roller and a first drive source that generates a driving force for rotationally driving each first transport roller. The first drive unit 828 is mainly composed of a drive sprocket 812 fixed to the output shaft of the motor 827, a driven sprocket 813, and each endless chain for rotationally driving each sprocket provided at the end of each first transport roller. It consists of. A motor 827 is used as the first drive source.

  Sprockets 808 are fixed to the end portions of the first conveying rollers 807 on the driving side plate 803 side. A driving sprocket 812 is disposed at one end portion of the driving side plate 803 obliquely below the sprocket 808, and a driven sprocket 813 is disposed below the sprocket 808 at the other end portion of the driving side plate 803. An endless chain 811 is spanned between the drive sprocket 812 and the driven sprocket 813. A guide plate 814 that guides an endless chain 811 running on the upper side between the drive sprocket 812 and the driven sprocket 813 from below is fixed to the drive side plate 803 by a column 816. A guide plate 815 that guides the endless chain 811 that travels on the lower side from below is fixed to the drive side plate 803 by a support column 816.

  A first transport roller 822 and a first transport roller 824 are respectively installed on a bearing 804 and a bearing 805 on the downstream side of the first roller conveyor device 800. Both ends of the first transport roller 822 and the first transport roller 824 are rotatably supported by a bearing 804 and a bearing 805 as first end support portions. A sprocket 808 and a sprocket 821 on the side (rear side) of the sprocket 808 are fixed to the end of the first conveying roller 822 on the drive side plate 803 side. Sprockets 808 fixed to the first conveying roller 807 and the first conveying roller 822 are meshed with the endless chain 811 running on the upper side from above. A sprocket 823 is fixed to the end of the first conveying roller 824 on the driving side plate 803 side. An endless chain 825 is stretched between a sprocket 821 fixed to the first transport roller 822 and a sprocket 823 fixed to the first transport roller 824.

  A bracket 817 is fixed to the drive side plate 803 on the downstream side in the transport direction of the first transport roller 807. A driven sprocket 813 is rotatably attached to the bracket 817. A plate 826 to which a motor 827 is attached is attached to the drive side plate 803 on the upstream side in the transport direction of the first roller conveyor device 800, and the plate 826 is configured to be movable in the transport direction.

  A drive sprocket 812 is fixed to the output shaft of the motor 827. The endless chain 811 can be stretched by moving the plate 826 upstream. When the motor 827 is driven to rotate, the drive sprocket 812 rotates and the endless chain 811 circulates. Each sprocket 808 meshed with the endless chain 811 rotates, and the first transport roller 807 and the first transport roller 822 rotate. Then, the sprocket 821 fixed to the first transport roller 822 rotates. Furthermore, the sprocket 823 spanned with the sprocket 821 by the endless chain 825 rotates, and the first transport roller 824 rotates. Then, the product S placed on the first transport roller 807 is transported (in the direction of the arrow in FIG. 13).

  The attachment interval between the adjacent skids 251 of the plate material processing machine 250 and the attachment interval between the adjacent first transport rollers 807 are the same. Further, the attachment interval between the first conveyance roller 807 and the first conveyance roller 822 is also the same as the attachment interval between the adjacent skids 251. The attachment interval between the first conveyance roller 822 and the first conveyance roller 824 is the same as the attachment interval between the skids 251 or shorter than the attachment interval between the skids 251.

  The plate material W processed by the plate material processing machine 250 inserts the mounting rod 115 into the space between the skid 251 and the skid 251 and takes out the plate material W by the mounting portion 112 formed in a comb shape. Thereafter, the mounting rod 115 of the mounting portion 112 is inserted into the space 806 of the comb-teeth side plate 802 of the first roller conveyor device 800 and the space 834 of the comb-teeth support side plate 831 described later, and the plate material W is conveyed first. After placing on the roller 807, the placement unit 112 moves backward. The three-jaw chuck 401 of the holding unit 400 holds and removes the remaining material Z, which is a part of the conveyed product, from the plate material W placed on the first conveying roller 807. The product S remaining after sorting is driven to the first roller conveyor device 800 and conveyed to a conveyor (not shown) provided outside the shelf frame 1.

  In order to stably convey the product S having a large plate width and a large plate thickness by the plate material W processed by the plate material processing machine 250, between the first end support portions that support both ends of each first transport roller. A first support portion 830 that supports each first transport roller from below is provided.

  As shown in FIG. 16, a comb support side plate 831 is attached to the frame 801B. The comb-tooth supporting side plate 831 is a plate material having a rectangular cross section and extends in the transport direction to have a comb-like shape. A plurality of equally spaced cuts are machined on the upper side in the longitudinal direction. In order to place the processed plate material W on the first roller conveyor device 800, a placement bar 115 can be inserted into a space 834 formed by the cutting. A pair of support rollers 832 is rotatably supported by support roller mounting pins 833 at each tooth portion between the cuts and the first transport rollers, that is, the first transport rollers 807 and the first transport rollers 822. The first conveyance rollers 824 are attached to be supported. The pair of support rollers 832 are at different positions with respect to each other as viewed from the direction of the rotation axis.

  The pair of support rollers 832 are respectively attached to the tooth portions of the comb-like comb-teeth support side plate 831 on the front and back surfaces of the comb-teeth support side plate 831. The support rollers 832 on the front surface are attached so as to contact and support the first transport rollers from obliquely below. The support roller 832 on the back surface is attached so as to contact and support each of the first transport rollers from the lower side opposite to the direction in which the support roller 832 on the front surface contacts and supports. Thus, the 1st support part 830 can reduce the deflection of each 1st conveyance roller by contacting and supporting places other than the edge part support part of the both ends of each 1st conveyance roller from two downward directions. . The outer diameter of the support roller 832 is made smaller than the outer diameter of each first transport roller, and the support rollers 832 are attached so that the projection surfaces of the pair of support rollers 832 do not protrude from the projection surface when the first transport rollers are viewed from above. This is to prevent the mounting bar 115 from hitting the support roller 832 when the mounting bar 115 is inserted into the space 834 from above. If it does in this way, the mounting rod 115 of the mounting part 112 can be inserted between the 1st conveyance roller 807 and the 1st conveyance roller 807 adjacent. If the support roller 832 does not come into contact with the mounting rod 115 when it is inserted, the support roller 832 may protrude from the projection surface when the first transport rollers are viewed.

  The first roller conveyor device 800 can stably convey the product S exceeding the length of three times the mounting interval between the first conveyance rollers 807 adjacent to the first conveyance rollers 807. That is, it is desirable that the roller mounting interval be an interval at which the conveyed product is received by the four rollers. In order to transport a transported object having a short length in the transport direction with a roller conveyor, the outer diameter of the roller must be reduced to reduce the roller mounting interval. In order to transport a heavy and heavy transport object, the cross-sectional performance (section coefficient, cross-section secondary moment) of the roller must be increased. If the outer diameter of the roller is increased in order to increase the cross-sectional performance of the roller, the mounting interval between the rollers is widened, and the dimension in the transport direction of the transportable transport object is further increased.

  As in the present invention, a first support portion 830 is provided that further supports each first transport roller supporting both ends from the lower side, except for the end support portions at both ends of each first transport roller. Then, the space | interval which supports each 1st conveyance roller can be shortened. Thereby, when the product S is transported, the moment applied to each first transport roller can be reduced, and the plate thickness is thick and the plate width is wide and heavy without increasing the outer diameter of each first transport roller. S can be transported.

  In the first roller conveyor device 800 of the present embodiment, the first conveying rollers are arranged in parallel and the motor 827 is disposed on the side of the first conveying roller 807 so that the product S is carried out from one side of the shelf frame 1. is there. The motors 827 may be disposed below the first transport rollers 807 with the first transport rollers arranged in parallel from the left end to the right end of the shelf frame 1 so that the product S can be transported from both sides of the shelf frame 1. In this way, it is possible to select whether the direction of carrying out the product S is the left side surface of the shelf frame 1 or the right side surface depending on the thickness or material of the product S.

  A case will be described in which a roller conveyor is provided at the customer site on the downstream side in the transport direction of the first roller conveyor device 800 to transport the product S. The conveyance roller of the customer's roller conveyor has the same diameter as that of the first conveyance roller 824, and a first support portion 830 that supports the roller from below is provided. The mounting interval between the transport rollers of the customer roller conveyor is the same as the mounting interval between the first transport rollers 807. Further, the mounting interval between the first transport roller 824 of the downstream roller of the first roller conveyor device 800 and the upstream transport roller of the customer roller conveyor is the same as the mounting interval of the first transport rollers 807. . By doing in this way, the product S having a length three times as long as the mounting interval between the adjacent first transport rollers 807 can be delivered.

  In this embodiment, the first support portion 830 uses a roller, but it may be a resin plate with a small friction coefficient processed into a concave shape with the radius of each first transport roller. In the present embodiment, the central portion of each first transport roller is contact-supported by the first support portion 830. However, a plurality of first support portions 830 are provided, and each first transport roller is supported by a plurality of first supports. The portion 830 may be contact-supported from below.

  When the processed plate material W is placed on the first transport roller 807, the short side of the plate material P and the hole H processed in the peripheral portion of the plate material P are the first transport roller 807 and the first transport roller. In order to prevent the end portion of the plate material P from drooping, a plate (not shown) that supports the processed plate material W from below may be provided so as to be able to move up and down. When the processed plate material W is placed on the first conveying roller 807, the plate is lowered, and when the processed plate material W is sorted, the plate is moved up and down. A through hole is formed in the plate so as not to interfere with the inner claw 402 of the three-claw chuck 401 when sorting.

  Since the processed plate material W (product S and remaining material Z) as the conveyed product is placed on the first conveying roller 807 having sufficient rigidity, the product S and the remaining material Z are not inclined obliquely but horizontally. It has been placed. Accordingly, the remaining material Z as a part of the conveyed product can be held and lifted by the holding unit 400 and can be smoothly sorted into the product S and the remaining material Z.

  In the above-described embodiment, the remaining material Z is held by the 3-jaw chuck 401 from the processed plate material W placed on the first conveying roller 807, the holding unit 400 is raised, and the remaining material Z, the product S, Sort into. When the holding unit 400 is raised, the holding unit 400 may be vibrated by a vibration device in order to promote separation of the remaining material Z and the product S. Moreover, when raising the holding | maintenance part 400, the lower surface of the product S may be adsorb | sucked with a suction pad, or high pressure air may be sprayed on the product S from the upper direction of the product S. Further, when the holding unit 400 is lowered, the brush tip contacts the product S, and when the holding unit 400 is raised, the brush is disposed on the holding unit 400 so as to press the product S against the conveying roller with the brush tip. May be. Alternatively, the chain may be hung instead of the brush, and the product S may be pressed against the conveying roller at the tip of the chain.

  The loading table 260 will be described with reference to FIGS. A loading table 260 is installed adjacent to the shelf frame 1 on the opposite side of the lifting frame 55 with respect to the shelf frame 1. Inside the frame of the loading table 260, a traveling surface 261 capable of transferring each pallet is provided symmetrically. The loading table 260 includes a second transfer mechanism 65 that transfers each pallet between the storage shelf 10 provided in the lower stage of the shelf frame 1 and the traveling surface 261 of the loading table 260. The traveling surface 261 of the loading table 260 can transfer each pallet to and from the storage shelf 10 provided in the shelf frame 1 by the second transfer mechanism 65. Further, an opening through which each pallet on which the plate material P or the product S is placed is provided on the surface of the shelf frame 1 on which the loading table 260 is adjacent.

  The second transfer mechanism 65 of the present embodiment is configured by symmetrically installing the first transfer mechanism 64 of the first embodiment and changing the captain, and is the same as that described in the first embodiment, so detailed description thereof is omitted. To do.

  A table lifter 265 is installed on the loading table 260 in order to place the plate material P on the material pallet 12. The table lifter 265 is mounted on a plurality of beam members provided horizontally above the floor. A plurality of support columns 266 raised in the vertical direction are attached to the upper surface of the table lifter 265 that can be raised and lowered. The column 266 is provided at a position where it does not interfere with the material pallet 12 when the table lifter 265 is moved up and down. The loading table 260 is provided with a guide 267 serving as a reference surface in two directions when the plate material P is loaded on the material pallet 12.

  Next, a procedure for loading and storing the plate material P on the material pallet 12 will be described with reference to FIG. At this time, the plate material processing machine 250 is processing the plate material P. When the plate material P placed on the material pallet 12 becomes empty, the lift 55 moves to the storage shelf 5 in which the empty material pallet 12 is stored.

  Next, the material pallet 12 is transferred from the storage shelf 5 to the lifting platform 55 by the first transfer mechanism 64. Then, the lift 55 moves to the storage shelf 10. Next, the material pallet 12 is transferred from the lift 55 to the storage shelf 10 of the shelf frame 1 by the first transfer mechanism 64 of the lift 55. Then, the material pallet 12 is transferred from the storage shelf 10 of the shelf frame 1 to the loading table 260 by the second transfer mechanism 65 of the loading table 260.

  Until the material pallet 12 is transferred, the table lifter 265 stands by in a lowered state. The material pallet 12 is transferred to a fixed position above the table lifter 265 by the second transfer mechanism 65. Next, the table lifter 265 moves up, and the column 266 pops out from the upper surface of the material pallet 12. A space into which the forklift claw can be inserted is formed between the upper surface (mounting surface) of the protruding column 266 and the upper surface of the material pallet 12. Next, the plate material P is placed on the column 266 attached to the table of the table lifter 265 by a forklift (not shown) while the two sides of the plate material P are applied to the guide 267. Next, when the table lifter 265 is lowered, the plate material P placed on the column 266 is placed on the material pallet 12 and inside the guide bar 11.

  Next, the material pallet 12 is transferred from the loading table 260 to the storage shelf 10 of the shelf frame 1 by the second transfer mechanism 65 of the loading table 260. Next, the material pallet 12 is transferred from the storage shelf 10 to the lift table 55 by the first transfer mechanism 64 of the lift table 55. The elevator 55 moves to the storage shelf 5 in which the empty material pallet 12 is stored, and the material pallet 12 on which the plate material P is placed is transferred to the storage shelf 5 by the first transfer mechanism 64 and stored.

  Next, the procedure for taking one plate P will be described with reference to FIGS. The lifting platform 55 moves to the storage shelf 5 in which the material pallet 12 on which the plate material P processed by the plate material processing machine 250 is placed is stored. Then, the material pallet 12 is transferred from the storage shelf 5 of the shelf frame 1 to a position where one of the lifting platforms 55 is picked up by the first transfer mechanism 64.

  Next, the suction unit 85 is lowered by the vertical movement unit 80 until the vacuum pad 86 comes into close contact with the uppermost plate P placed on the material pallet 12 in a stacked manner. And the adsorption | suction part 85 hold | maintains the board | plate material P with a vacuum. Thereafter, the adsorbing portion 85 is lifted with the plate member P held by the up-and-down moving portion 80, and the uppermost plate member P is removed.

  Next, the first transfer mechanism 64 transfers the material pallet 12 from the position where one of the lifts 55 is picked up to the storage shelf 5 in which the material pallet 12 has been stored.

  Next, the lift 55 moves to the storage shelf 9 in which the positioning pallet 16 is stored in a state where the picked plate material P is held by the suction portion 85. Thereafter, the first transfer mechanism 64 transfers the positioning pallet 16 from the storage shelf 9 to a position on which the plate material P taken is placed. And the adsorption | suction part 85 holding the board | plate material P picked up one sheet falls by the up-and-down moving part 80. FIG. Next, the vacuum of the vacuum pad 86 is released, and the single plate material P is delivered onto the positioning pallet 16. And the adsorption | suction part 85 raises to the original position by the up-down moving part 80. FIG.

  Next, the positioning pallet 16 is transferred and stored in the storage rack 9 of the shelf frame 1 from the position where the plate material P obtained by taking one piece of the lifting table 55 is placed by the first transfer mechanism 64. Then, after positioning the plate material P, it is carried into the plate material processing machine 250.

  A procedure for carrying the plate material P into the plate material processing machine 250 will be described with reference to FIG. When the processing of the plate material P is finished, the processed plate material W is unloaded from the plate material processing machine 250. Thereafter, as shown in FIG. 17A, the lifting platform 55 moves to a height at which the mounting rod 115 of the mounting portion 112 can be inserted under the plate P on the positioning pallet 16 stored in the storage shelf 9. At this time, the longitudinal direction of the plate material P on the positioning pallet 16 is positioned by the pusher 25.

  Next, as shown in FIG. 5B, the mounting portion 112 is advanced by the longitudinal movement portion 111 and the mounting rod 115 is inserted below the plate member P. At this time, the position of the plate material P in the short direction is detected in advance by a sensor, and the end surface (long side of the plate material P) orthogonal to the short direction of the plate material P and the stop position of the mounting rod 115 are always the same. To do. Thereafter, the lifting platform 55 is raised slightly, and the plate material P is placed on the placing rod 115 and received. The plate material P is placed at a fixed position of the placement portion 112. Then, due to the forward / backward moving part 111, the placing part 112 moves backward to the lifting platform 55 side and takes out the plate material P.

  Next, as shown in FIG. 5C, after the forward / backward movement unit 111 is rotated forward by the rotation drive device 58 to a position where the plate material P is carried in by the placement unit 112, the lifting platform 55 is moved to the plate material processing machine 250 by the plate material processing machine 250. Move to the height to carry P.

  Next, as shown in FIG. 4D, after the placing portion 112 is advanced to the plate material processing machine 250 side by the forward / backward moving portion 111, the lifting platform 55 is lowered. Then, the plate material P is placed and delivered from the placement rod 115 to a fixed position on the skid 251 of the plate material processing machine 250. Then, the placing part 112 is moved backward to the lifting platform 55 side by the longitudinal movement part 111. Next, the forward / backward movement unit 111 is rotated in the reverse direction by the rotation driving device 58 until the direction of the placement unit 112 becomes the original position. In this way, the plate material P is carried into the plate material processing machine 250.

  The mounting interval between the skids 251 is the same as the mounting interval between the mounting rods 115, and the mounting rods 115 of the mounting portion 112 can be inserted into the space between the skids 251 adjacent to each other. The position has been shifted.

  A procedure for unloading the processed plate material W from the plate material processing machine 250 will be described with reference to FIG. When the processing of the plate material P is finished, the elevating platform 55 is placed on the skid 251 of the plate material processing machine 250 after the forward / backward moving portion 111 is rotated by the rotation drive device 58 to a position where the processed plate material W is carried out in the forward rotation. It moves to a position where the mounting rod 115 of the mounting portion 112 can be inserted under the processed plate material W.

  Next, after the mounting rod 115 is moved forward by the forward / backward moving portion 111 and the mounting rod 115 is inserted below the processed plate material W mounted on the plate material processing machine 250, the lifting / lowering base 55 is slightly raised and the mounting rod is moved. The processed plate material W is placed on 115 and taken out. Then, the placing part 112 is moved backward to the lifting platform 55 side by the longitudinal movement part 111 and the plate material W is carried out. The rotation drive device 58 rotates the back-and-forth movement unit 111 in the reverse direction to rotate the platen W after the processing of the mounting unit 112 to the position where the plate member W is mounted on the first roller conveyor device 800.

  As shown in FIG. 18A, the lifting platform 55 moves to a position where the processed plate material W is placed on the first roller conveyor device 800. Then, the placing rod 115 is moved forward above the space 806 between the first conveying roller 807 and the first conveying roller 807 of the first roller conveyor device 800 by the forward / backward moving unit 111. The mounting rod 115 stops at a position where the inner claw 402 of the three-claw chuck 401 can be inserted into the hole H processed in the peripheral edge of the plate material P.

  Next, as shown in FIG. 5B, the lifting / lowering base 55 is lowered slightly, and the mounting rod 115 is inserted into the space 806 and the space 834. Then, the processed plate material W is placed on the first conveying roller 807. Next, the mounting rod 115 is moved backward by the forward / backward moving portion 111. In this way, the first roller conveyor device 800 inserts the comb-shaped mounting portion 112 on which the plate material W is mounted between the first conveyance roller 807 and the first conveyance roller 807, and the plate material W Is configured to receive. Next, as shown in FIG. 3C, the holding portion 400 is lowered and the inner claw 402 attached to the three-claw chuck 401 is inserted into the hole H formed in the peripheral portion (remaining material Z) of the plate material P. Then, the 3-jaw chuck 401 is opened and the remaining material Z is held.

  Next, as shown in FIG. 4D, the holding unit 400 is raised. Then, the remaining material Z is held by the three-jaw chuck 401 and lifted from the first conveying roller 807. The product S is placed on the first transport roller 807. In this way, the plate material W is sorted into the remaining material Z and the product S. When the holding unit 400 is raised, the motor 827 of the first roller conveyor device 800 is continuously rotated forward and backward for a certain period of time so that the processed plate material W on the first conveying roller 807 is vibrated in the conveying direction. May be. Thereafter, the motor 827 of the first roller conveyor device 800 is driven to transport the product S placed on the first transport roller 807.

  Next, the lifting / lowering base 55 moves to a position where the rest material Z held by the 3-jaw chuck 401 is received by the placement unit 112, and the remaining material Z held by the 3-jaw chuck 401 by the back-and-forth movement unit 111. Advance downwards. The holding of the 3-jaw chuck 401 is released, and the remaining material Z is placed on the placement bar 115. Then, the placing part 112 is moved backward to the lifting platform 55 side by the longitudinal movement part 111. Next, the remaining material Z on the mounting rod 115 is scraped off onto the remaining material conveying device 700 by the stopper 680.

  Next, a procedure for scraping off the remaining material Z on the mounting rod 115 with the stopper 680, accumulating it on the remaining material conveying device 700, driving the remaining material conveying device 700, and carrying it out will be described with reference to FIG.

  As shown in FIG. 19A, the placing portion 112 is advanced toward the remaining material conveying device 700 by the forward / backward moving portion 111, and the remaining material Z passes over the claw 681. When the lifting platform 55 is lowered, the back and forth moving portion 111 stops at a position where the claw 681 enters the space 117 (see FIG. 8) between the end surface of the mounting rod mounting member 116 and the end portion of the remaining material Z. To do.

  Next, as shown in FIG. 5B, the lifting platform 55 is lowered to a position where the remaining material Z on the mounting rod 115 is squeezed off by the claws 681.

  Next, as shown in FIG. 5C, when the mounting portion 112 is moved backward by the forward / backward moving portion 111, the remaining material Z is caught by the claw 681 and stopped, and the remaining material Z is scraped off from the mounting rod 115. Then, the placing part 112 is moved back to a fixed position by the forward / backward moving part 111. The remaining material Z caught by the claw 681 is dropped from the placing rod 115 and placed on the endless chain 706 of the remaining material transporting apparatus 700.

  Next, the remaining material Z accumulated on the endless chain 706 is conveyed to the unloading position by rotationally driving the motor 705 of the remaining material conveying device 700. Then, the remaining material Z is scooped out with a forklift and discarded.

  The 2nd roller conveyor apparatus 835 of Example 2 is demonstrated with reference to FIG. 20, FIG. The second roller conveyor device 835 of this embodiment has a configuration in which a lift roller conveyor 840 is added to a fixed roller conveyor 838. The fixed roller conveyor 838 is obtained by changing the length of the first conveying roller 807 and the shape of the frame 801 with respect to the first roller conveyor device 800 of the first embodiment. When the elevating roller conveyor 840 is raised, the driving side plate 842 of the elevating roller conveyor 840 is disposed adjacent to the comb side plate 802 of the fixed roller conveyor 838 and in front of the comb side plate 802. The basic configuration is the same as that of the first roller conveyor device 800.

  The second roller conveyor device 835 places the processed plate material W placed on the placement rod 115 of the placement unit 112 on the fixed roller conveyor 838 while lowering the elevating roller conveyor 840. After the placement unit 112 is retracted and retracted, the elevating roller conveyor 840 is raised. The second roller conveyor device 835 holds the processed plate material W placed on the fixed roller conveyor 838 and the elevating roller conveyor 840 by holding it by the holding unit 400 and sorts it, or transports the sorted product S You can do it.

  The elevating roller conveyor 840 has a shape in which the first roller conveyor device 800 is symmetrical so that the drive unit of the second transport roller 845 is on the front side (elevating platform side), and the elevating frame 841 of the elevating roller conveyor 840 is a cylinder 861. It can be moved up and down. A driving side plate 842 is attached to the beam on the front side of the elevating frame 841. Further, a comb-tooth side plate 843 is attached to the rear beam of the elevating frame 841. The comb-tooth side plate 843 is disposed in front of the comb-tooth side plate 802 attached to the fixed roller conveyor 838. Further, a comb-supporting side plate 844 described later is attached to the beam on the inside of the lifting frame 841.

  The driving side plate 842 is a plate having a rectangular cross section and extends in the transport direction. A plurality of holes are formed at equal intervals on the upper side of the long side of the driving side plate 842, and a bearing 805 is attached to the holes.

  The comb-tooth side plate 843 is a plate material having a rectangular cross section and extends in the conveying direction to have a comb-like shape. A plurality of equidistant cuts are processed on the upper side of the long side of the comb-tooth side plate 843. When the elevating frame 841 is raised, the first transport rollers of the fixed roller conveyor 838 are inserted into the space formed by the cut. A plurality of holes are formed at equal intervals in the tooth portion between the notches, and bearings 804 are attached to the holes.

  A plurality of second transport rollers 845 are installed on a plurality of bearings 805 attached to the driving side plate 842 and a plurality of bearings 804 attached to the comb-tooth side plate 843. The second transport roller 845 is rotatably supported by a bearing 804 and a bearing 805 as a second end support portion. The second transport rollers 845 are installed at equal intervals in parallel so that the products S can be transported in a direction orthogonal to the direction in which each pallet is transported by the first transport mechanism 64 of the lifting platform 55. When the second transport roller 845 of the elevating roller conveyor 840 is raised, the second transport roller 845 is adjacent to the first transport roller 807 of the fixed roller conveyor 838 so that the transport surface is at the same height. It arrange | positions so that it may be located between the suitable 1st conveyance rollers 807. FIG.

  The elevating roller conveyor 840 includes a second drive unit 858 that rotates the second transport roller 845 and a second drive source that generates a driving force for rotationally driving the second transport roller 845. The second drive unit 858 mainly includes a drive sprocket 848 fixed to the output shaft of the motor 854, a driven sprocket 849, and an endless chain 847 for rotationally driving a sprocket 846 provided at the end of the second transport roller 845. It consists of. A motor 854 is used as the second drive source.

  Sprockets 846 are respectively fixed to the end portions of the second conveying rollers 845 on the driving side plate 842 side. A driving sprocket 848 is disposed at one end of the driving side plate 842 obliquely below the sprocket 846, and a driven sprocket 849 is disposed below the sprocket 846 at the other end of the driving side plate 842. An endless chain 847 is spanned between the drive sprocket 848 and the driven sprocket 849. A guide plate 850 that guides an endless chain 847 running on the upper side between the drive sprocket 848 and the driven sprocket 849 from below is fixed to the drive side plate 842 by a column 852. In addition, a guide plate 851 for guiding the endless chain 847 running on the lower side from below is fixed to the drive side plate 842 by a support column 852. A sprocket 846 fixed to the second conveying roller 845 is engaged with the endless chain 847 running on the upper side from above.

  A bracket 855 is fixed to the drive side plate 842 on the downstream side in the transport direction of the second transport roller 845. A driven sprocket 849 is rotatably attached to the bracket 855. A plate 853 to which a motor 854 is fixed is attached to the drive side plate 842 on the upstream side in the transport direction of the second transport roller 845, and the plate 853 is configured to be movable in the transport direction. A drive sprocket 848 is fixed to the output shaft of the motor 854. The endless chain 847 can be stretched by moving the plate 853 upstream. When the motor 854 as the second drive source is rotationally driven, the drive sprocket 848 rotates and the endless chain 847 circulates and moves. Then, the sprocket 846 meshed with the endless chain 847 rotates and the second transport roller 845 rotates.

  The comb-tooth supporting side plate 844 is a plate material having a rectangular cross section and extends in the transport direction to have a comb-like shape. A plurality of equally spaced cuts are machined on the upper side of the long side. The first transport rollers of the first roller conveyor device 800 are inserted into the space created by the cutting when the elevating frame 841 is raised.

  As shown in FIG. 19, the comb support side plate 844 is provided in front of the comb support side plate 831. A second support portion 857 is attached to each tooth portion between the notches of the comb-supporting side plate 844. Similarly to the first support portion 830, the second support portion 857 has a pair of support rollers 832 that are rotatably attached by support roller attachment pins 833. The pair of support rollers 832 respectively support and support the second transport rollers 845. Each support roller 832 has the center of each rotation shaft at a different position when viewed from the direction of the rotation shaft.

  The pair of support rollers 832 are attached to the tooth portions of the comb-like comb-teeth support side plate 844 on the front and back surfaces of the comb-teeth support side plate 844, respectively. A support roller 832 on the front surface is attached so as to contact and support the second transport roller 845 obliquely from below. The support roller 832 on the back surface is attached so as to contact and support the second transport roller 845 from the lower side opposite to the direction in which the support roller 832 on the front surface contacts and supports. The outer diameter of the support roller 832 is made smaller than the outer diameter of the second transport roller 845, and is attached so that the projection surfaces of the pair of support rollers 832 do not protrude from the projection surface when the second transport roller 845 is viewed from above. The second support portion 857 contacts and supports a portion other than both end portions of the second transport roller 845 from two directions below.

  When the three-claw chuck 401 attached to the holding unit 400 is lowered, the inner claw 402 attached to the three-claw chuck 401 is lowered between the first conveyance roller 807 and the second conveyance roller 845. A groove is processed in the first transport roller 807 and the second transport roller 845 adjacent to the lowered inner claw 402. When the three-claw chuck 401 is lowered, the inner claw 402 is inserted into a space 856 formed by these grooves.

  A gantry frame 865 is fixed to the pillar 2. A cylinder 861 is attached to the gantry frame 865 with the rod facing upward. A floating joint 862 is attached to the rod of the cylinder 861. A lifting frame 841 is attached to the upper side of the floating joint 862. A plurality of guide bars 863 are attached to the lower part of the elevating frame 841 so as to be parallel to the rod of the cylinder 861 and to surround the cylinder 861. A guide 864 is attached to the gantry frame 865, and a guide rod 863 is inserted into the guide 864 so as to be movable up and down. When the cylinder 861 is driven, the elevating frame 841 is guided by the guide 864 and can be raised and lowered. The cylinder 861 is driven by pneumatic pressure, and includes pneumatic piping and valves not shown.

  The second conveying roller 845 of the elevating roller conveyor 840 has a conveying position between the first conveying roller 807 adjacent to the first conveying roller 807 included in the fixed roller conveyor 838 and the first conveying roller 807. The lower retracted position can be moved up and down by a cylinder 861. When the second conveyance rollers 845 of the elevating roller conveyor 840 enter between the adjacent first conveyance rollers 807, the mounting pitch between the rollers is halved. Therefore, the product S having a short length in the transport direction can be transported. And the outer diameter of each 1st conveyance roller and the outer diameter of the 2nd conveyance roller 845 are the same, and the conveyance direction and the conveyance speed are also the same.

  The second roller conveyor device 835 includes a motor 827 as a first drive source that generates a driving force for rotationally driving each first transport roller of the fixed roller conveyor 838, and a second transport roller 845 of the lift roller conveyor 840. A motor 854 as a second drive source that generates a driving force for rotationally driving the motor, and each of the first transport rollers and the second transport rollers 845 is connected by a motor 827 as a first drive source. You may make it rotate. In this method, the drive sprocket 812 and the drive sprocket 848 are respectively fixed to drive shafts that are rotatably supported. A new sprocket is fixed to each of the two drive shafts. A counter shaft is rotatably arranged, a pair of sprockets is fixed to the counter shaft, and an endless chain is spanned between each sprocket fixed to the two drive shafts and a pair of sprockets fixed to the counter shaft. The sprocket fixed to the same drive shaft as the drive sprocket 848 on the lifting roller conveyor 840 side that moves up and down, and the endless chain that spans the sprocket on the counter shaft, are equipped with an auto tensioner that automatically adjusts the chain tension. Provide. A motor 827 as a first drive source for rotating and driving each first transport roller of the fixed roller conveyor 838 is disposed in the vicinity of the counter shaft. The driving sprocket is fixed to the motor 827, the driven sprocket is fixed to the counter shaft, and the endless chain is stretched between the driving sprocket and the driven sprocket. In this way, when the motor 827 is driven to rotate, the counter shaft rotates, the drive sprocket 812 and the drive sprocket 848 rotate, and the fixed roller conveyor 838 and the lift roller conveyor 840 can be driven. .

  A procedure for unloading the processed plate material W from the plate material processing machine 250 will be described. When the processing of the plate material P is finished, the elevating platform 55 is placed on the skid 251 of the plate material processing machine 250 after the forward / backward moving portion 111 is rotated by the rotation drive device 58 to a position where the processed plate material W is carried out in the forward rotation. It moves to a position where the mounting rod 115 of the mounting portion 112 can be inserted under the processed plate material W.

  Next, after the mounting rod 115 is moved forward by the forward / backward moving portion 111 and the mounting rod 115 is inserted below the processed plate material W mounted on the plate material processing machine 250, the lifting / lowering base 55 is slightly raised and the mounting rod is moved. The processed plate material W is placed on 115 and taken out. Then, the placing part 112 is moved backward to the lifting platform 55 side by the longitudinal movement part 111 and the plate material W is carried out. The rotation drive device 58 rotates the back-and-forth movement unit 111 in the reverse direction to rotate the platen W having been processed in the direction of the mounting unit 112 to a position where it is mounted on the second roller conveyor device 835.

  Next, the lift 55 moves the processed plate material W to a position where it is placed on the second roller conveyor device 835. At this time, the elevating roller conveyor 840 (elevating frame 841) is lowered (retracted position). The mounting rod 115 advances to a position where the inner claw 402 of the three-claw chuck 401 can be inserted into the hole H processed in the peripheral edge of the plate material P.

  Next, the lifting / lowering platform 55 is lowered slightly and the mounting rod 115 is inserted between the first transport roller 807 and the first transport roller 807 of the fixed roller conveyor 838. Then, the processed plate material W is placed on the first conveying roller 807. Next, the mounting rod 115 is moved backward by the forward / backward moving portion 111. Next, the lift roller conveyor 840 (lift frame 841) is raised. The processed plate material W is supported by the first transport roller 807 of the fixed roller conveyor 838 and the second transport roller 845 of the lift roller conveyor 840. Next, the holding portion 400 is lowered and the inner claw 402 attached to the three-claw chuck 401 is inserted into the hole H processed in the peripheral portion (remaining material Z) of the plate material P. Then, the 3-jaw chuck 401 is opened and the remaining material Z is held. Immediately below the hole H is a space 856 configured by grooves processed into the first conveyance roller 807 and the second conveyance roller 845 so that the inner claw 402 does not interfere with the roller.

  Next, the holding unit 400 is raised. Then, the remaining material Z is held by the 3-jaw chuck 401 and lifted from the second roller conveyor device 835. The product S is placed on the second roller conveyor device 835. In this way, the plate material W is sorted into the remaining material Z and the product S. Thereafter, the motor 827 and the motor 854 of the second roller conveyor device 835 are driven to convey the product S placed on each conveyance roller.

  Next, the lifting / lowering base 55 moves to a position where the rest material Z held by the 3-jaw chuck 401 is received by the placement unit 112, and the remaining material Z held by the 3-jaw chuck 401 by the back-and-forth movement unit 111. Advance downwards. The holding of the 3-jaw chuck 401 is released, and the remaining material Z is placed on the placement bar 115. Then, the placing part 112 is moved backward to the lifting platform 55 side by the longitudinal movement part 111. Next, the remaining material Z on the mounting rod 115 is scraped off onto the remaining material conveying device 700 by the stopper 680.

  A procedure for loading and storing the plate material P on the material pallet 12, a procedure for taking one plate material P, a procedure for carrying the plate material P into the plate material processing machine 250, and the remaining material Z on the mounting rod 115 with a stopper 680. The procedure for squeezing, accumulating on the remaining material conveying device 700, driving the remaining material conveying device 700, and carrying it out is the same as that in the first embodiment, and therefore detailed description thereof is omitted.

  The plate material loading / unloading / sorting device for loading and unloading the plate material P to / from the plate material processing machine 250 has been described. For example, a sortable three-dimensional warehouse for loading or unloading the plate material P to / from the plate material processing machine 250 Also applies.

  As mentioned above, although the preferable Example was shown and demonstrated about the roller conveyor apparatus of this invention, and the board | plate material carrying in / out sorting device provided with the roller conveyor apparatus, this invention is not limited only to the Example mentioned above. Needless to say, various combinations and / or various modifications may be implemented within the scope of the present invention. The storage shelf is not limited to the position or quantity described in the embodiments, and can be changed to an appropriate position and / or an appropriate quantity.

DESCRIPTION OF SYMBOLS 1 Shelf frame 12 Material pallet 16 Positioning pallet 55 Lifting stand 58 Rotation drive device 64 1st transfer mechanism 65 2nd transfer mechanism 79 Single picking device 111 Back-and-forth moving part 112 Mounting part 115 Mounting bar 181 Lifting mechanism 250 Plate material processing machine 260 Loading platform 400 Holding unit 680 Stopper 700 Remaining material conveying device 800 First roller conveyor device 835 Second roller conveyor device H Hole P Plate material W Plate material (already processed)
Z Remaining material S Product

Claims (3)

The plate material cut by the plate processing machine is scooped out with a comb-shaped mounting portion, the above-mentioned mounting portion is inserted from above between adjacent conveyance rollers, and the above-mentioned plate material scooped out with the above-mentioned mounting portion is removed. A roller conveyor device that transports the placed plate after being placed on the transport roller,
A plurality of first transport rollers for transporting the plate material;
A first end support portion that rotatably supports both ends of the first transport roller;
A first drive unit for rotating the first transport roller;
A first drive source for generating a driving force for rotationally driving the first transport roller;
A first support portion that supports a portion other than both ends of the first transport roller from below ;
The first support portion has a pair of rotatable rollers, and the pair of rollers are configured such that the centers of the rotation axes are different from each other when viewed from the direction of the rotation axis.
The outer diameters of the pair of rollers are configured such that a part of the outer diameters overlap each other when viewed from the direction of the rotation axis, and the first conveying roller is supported by the pair of rollers from below. Roller conveyor device. A plurality of second transport rollers for transporting the plate material placed on the first transport rollers in the same direction as the transport direction of the first transport rollers;
A second end support portion for rotatably supporting both ends of the second transport roller;
A second drive unit for rotating the second transport roller;
A second support part for supporting the second transport roller from below;
The second transport roller can be moved up and down to a transport position for transporting the plate material and a retracted position below the first transport roller, and the second transport roller is provided between the first transport rollers adjacent to each other. The plate material is configured to be placed on the first transport roller in the comb-shaped mounting portion when the second transport roller is in the retracted position,
The second support portion has a pair of rotatable rollers, and the pair of rollers of the second support portion is configured so that the centers of the rotation shafts are different from each other when viewed from the direction of the rotation shaft,
The outer diameters of the pair of rollers included in the second support part are configured such that a part of the outer diameters overlap each other when viewed from the direction of the rotation axis, and the second support roller is provided on the second support part from below. Supported by a pair of rollers,
The second transport roller is rotated by the first drive source, or is rotated by a second drive source provided to rotate the second transport roller. The roller conveyor apparatus as described. While providing the roller conveyor apparatus of any one of Claims 1-2,
A holding portion for holding a part of the plate material placed on the first conveying roller of the roller conveyor device is provided above the roller conveyor device so as to be movable up and down.
The plate material carrying-in / out / sorting device is characterized in that the holding portion includes an openable / closable claw for holding a part of the plate material, and the claw can be inserted between the first conveyance rollers adjacent to each other. .

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