JP4451227B2 - Substrate storage box - Google Patents

Description

  The present invention relates to a substrate storage box suitable for storing and storing a substrate during or after manufacture in a substrate production line or the like.

  In a board production line or the like provided with circuits and electronic components, the board during or after manufacture is temporarily stored and stored in a board storage box (also called a board transfer container or cassette), and the next process is performed. The substrate is sequentially transported by the robot, and the substrate is taken out or stored again according to the process contents.

  As a substrate storage box, a box formed by plastic injection molding has been proposed. However, since the substrate storage box is required to have sufficient strength so that the substrate can be protected during transportation on a line or the like, it is necessary to increase the strength of each wall by increasing the thickness of each wall surface. As a result, the substrate storage box becomes heavy and difficult to handle, and the cost increases.

JP 2004-79615 A

  The present invention has been made in view of the above points, and an object of the present invention is to provide a substrate storage box that is excellent in light weight, has sufficient strength, is advantageous in cost, and can be used repeatedly.

According to the first aspect of the present invention, there is provided a substrate storage box having a box shape formed by joining a side wall, a lower surface wall, an upper surface wall, and a rear wall, and having a front surface opened as a substrate insertion / removal port. Is composed of a laminated laminated plate obtained by laminating and adhering two plastic plates, and the side wall has an uneven bent shape in which the inner plastic plate and the outer plastic plate in the laminated laminated plate are repeatedly uneven in the vertical direction. And the inner plastic plate is formed with a plurality of substrate receiving grooves along the depth direction of the substrate receiving box, and the position of the substrate receiving groove is the concave / convex bent shape of the substrate receiving box. It is the convex part of the inner plastic plate and the outer plastic plate with respect to the inside, and the inner plastic plate at the bottom of the substrate receiving groove Side plastic plate is bonded to the inner plastic plate and the outer plastic plates in the portion of the convex relative to the inside of the substrate housing box, the upper and lower reinforcing hollow tube portion along the substrate receiving groove of the board receiving grooves The bottom wall and the top wall are connected to each other in the width direction of the substrate housing box, and the hollow cylindrical portion for joining reinforcement along the depth direction of the substrate housing box is formed of an inner plastic plate in the laminated laminated plate. Reinforcing ribs are formed between the outer plastic plates, and the inner plastic plate in the laminated laminated plate has a reinforcing rib extending in the width direction of the substrate housing box between the joint reinforcing hollow cylindrical portions. The joint reinforcement of the upper surface wall is provided, and the surface of the joint reinforcement hollow cylinder portion of the lower surface wall and the lower edge of the side wall are joined together. Upper edge of the hollow cylindrical portion of the surface side walls, characterized in that it is joined.

According to a second aspect of the present invention, in the first aspect, a working arm insertion groove is formed along the depth direction of the substrate storage box in at least one of an upper portion and a lower portion of the outer side surface of the substrate storage box. It is characterized by.

  According to the first aspect of the present invention, at least the side wall, the lower surface wall, and the upper surface wall are formed of a laminated laminated plate obtained by laminating and bonding two plastic plates, and the side wall is formed of the laminated laminated plate. A plurality of substrate receiving grooves are formed in the inner plastic plate in the depth direction of the substrate receiving box, and a reinforcing hollow along the substrate receiving groove is provided between the inner plastic plate and the outer plastic plate in the laminated laminated plate. Since the cylindrical portion is formed above and below the substrate receiving groove, the strength of the substrate receiving groove to which the load is most applied when the substrate is inserted into the substrate receiving groove can be increased by the upper and lower reinforcing hollow cylindrical portions. Therefore, it is possible to make the laminated laminated plate constituting the side wall thinner. Further, the lower wall and the upper wall are formed at the both edges in the width direction of the substrate storage box, and the hollow cylinder portion for joining reinforcement along the depth direction of the substrate storage box is the inner plastic plate and the outer plastic plate in the laminated laminated plate. Formed on the inner plastic plate in the laminated laminated plate, a reinforcing rib along the width direction of the substrate housing box is provided between the hollow cylinder portions for joining reinforcement toward the inside of the substrate housing box, The surface of the joint reinforcing hollow cylinder part of the lower wall and the lower edge of the side wall are joined, and the surface of the joint reinforcing hollow cylinder part of the upper wall and the upper edge of the side wall are joined. Therefore, it is possible to increase the strength of the joint portion between the side wall, the lower surface wall, and the upper surface wall by the hollow cylinder portion for joint reinforcement, and the laminated bonding that constitutes the lower surface wall and the upper surface wall. It becomes possible to reduce the thickness of the. By these things, the weight reduction and cost reduction of a board | substrate accommodation box are attained. Furthermore, it can be used repeatedly by increasing the strength of the substrate storage box.

According to the first aspect of the present invention, the side wall is shaped into a concavo-convex bent shape in which the concavo-convex is repeated in the vertical direction, whereby the strength of the side wall is increased and the laminated laminated plate constituting the side wall is thinned. It is possible to reduce the weight and cost of the substrate storage box, and the substrate storage box can be used repeatedly because it is difficult to be damaged once used.

According to the second aspect of the present invention, the working arm insertion groove is formed along the depth direction of the substrate storage box in at least one of the upper part and the lower part of the outer side surface of the substrate storage box. It becomes possible to transport the substrate storage box by inserting the work arm of the robot into the work arm insertion groove of the storage box, and it becomes easy to transport the substrate storage box.

  Hereinafter, embodiments of the present invention will be described in detail. 1 is a front perspective view of a substrate storage box according to an embodiment of the present invention, FIG. 2 is a rear perspective view of the substrate storage box, FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 4-4 sectional drawing.

  The substrate storage box 10 shown in the figure is formed in a rectangular parallelepiped box shape by joining the left and right side walls 21, the lower surface wall 41, the upper surface wall 51 and the back wall 61, and the front surface is opened as the substrate insertion / removal port 11.

  The side wall 21 constitutes left and right side surfaces, and is composed of a laminated laminated plate of two plastic plates, an inner plastic plate 23 and an outer plastic plate 26, and has a rectangular planar shape in the illustrated example. The inner plastic plate 23 and the outer plastic plate 26 are made of vacuum moldable plastic, such as polypropylene or polystyrene, and further prevent damage to the components of the substrate due to static electricity, and when the heated substrate is accommodated. In order to prevent the substrate housing box 10 from being thermally deformed, a plastic having conductivity and heat resistance is more preferable. The thicknesses of the inner plastic plate 23 and the outer plastic plate 26 can be vacuum-formed and the substrate housing box 10 has a required strength. For example, the thickness is about 0.5 to 2.0 mm. I will give you.

  The inner plastic plate 23 and the outer plastic plate 26 of the side wall 21 are each shaped into a predetermined shape by vacuum forming. In the inner plastic plate 23 and the outer plastic plate 26, flange portions (outwardly projecting portions) 22 and 28 are formed on the periphery, and the portions surrounded by the flange portions 22 and 28 are repeatedly uneven in the vertical direction. It is shaped into a concave and convex shape. In the illustrated example, the inner plastic plate 23 and the outer plastic plate 26 are bent and shaped inwardly into the substrate housing box 10 so that the entire portion surrounded by the flange portions 22 and 28 is formed. The concave / convex bent shape is formed on the surface bent and bent. Reference numeral 24 in FIG. 3 indicates a concave portion with respect to the inner side of the substrate storage box 10 among the concave and convex shapes formed on the inner plastic plate 23, and reference numeral 27 indicates a convex portion. In FIG. 3, reference numeral 29 indicates a concave portion with respect to the inner side of the substrate housing box 10 among the concave and convex shapes formed on the outer plastic plate 26, and reference numeral 30 indicates a convex portion. The irregularities are respectively formed along the depth direction of the substrate housing box 10, and the irregularities of the inner plastic plate 23 and the outer plastic plate 26 are formed so as to overlap each other.

  A plurality of substrate housing grooves 25 and reinforcing hollow cylinder portions 31 are formed in the side wall 21 in parallel along the depth direction of the substrate housing box 10. The substrate receiving groove 25 is formed on the inner plastic plate 23 in the left and right side walls 21 so as to be symmetrical with respect to the left and right side walls 21 and 21. The vertical interval of the substrate receiving groove 25 is set so that the components of the substrate K do not come into contact with each other and the substrate K can be easily taken out. The number of the substrate receiving grooves 25 depends on the size of the substrate receiving box 10. It is determined. Further, in the example shown in the figure, the substrate receiving groove 25 is located at the upper and lower center positions of the convex and concave portions 27 and 30 with respect to the inner side of the substrate receiving box 10 among the concave and convex shapes of the inner plastic plate 23 and the outer plastic plate 26. Are formed on the inner plastic plate 23.

  The reinforcing hollow cylindrical portion 31 is formed between the inner plastic plate 23 and the outer plastic plate 26 in a hollow cylindrical shape. In the illustrated example, the hollow cylindrical portion 31 is formed in a hollow rectangular cylindrical shape above and below the substrate receiving groove 25, In addition, the left and right side walls 21 and 21 are symmetrical. Further, in the example shown in the drawing, the reinforcing hollow cylinder portion 31 has convex and concave portions 27 and 30 of the inner plastic plate 23 and the outer plastic plate 26 that are convex with respect to the inner side of the substrate housing box 10. The substrate receiving groove 25 is formed between the inner plastic plate 23 and the outer plastic plate 26 so as to sandwich the substrate receiving groove 25 vertically.

  Further, the upper edge and the lower edge of the side wall 21 are bent in a stepped manner between the flange portions 22, 28 and the uppermost and lower-lower reinforcing hollow cylinder portions 31 to form the lower wall 41 or the upper wall 51. The junction part 38 is comprised.

  The side wall 21 is bonded to the inner plastic plate 23 and the outer plastic plate 26 except for the reinforcing hollow cylinder portion 31. Accordingly, since the inner plastic plate 23 and the outer plastic plate 26 are bonded to each other on the upper and lower sides of the reinforcing hollow cylinder portion 31, the strength of the reinforcing hollow cylinder portion 31 is further improved, and the reinforcing hollow cylinder portion is further improved. Since the inner plastic plate 23 and the outer plastic plate 26 are overlapped and bonded to each other at the bottom of the substrate receiving groove 25 adjacent to the portion 31, the substrate receiving groove is obtained by a synergistic effect with the strength improvement of the reinforcing hollow cylinder portion 31. The strength of 25 is further improved.

  The lower wall 41 constitutes the lower surface of the substrate housing box 10, and the upper wall 51 constitutes the upper surface of the substrate housing box 10. The lower wall 41 and the upper wall 51 are each composed of a laminated laminated plate of inner plastic plates 43 and 53 and outer plastic plates 46 and 56, and has a rectangular planar shape. The inner plastic plates 43 and 53 and the outer plastic plates 46 and 56 of the lower wall 41 and the upper wall 51 are made of the same material as the inner plastic plate 23 and the outer plastic plate 26 of the side wall 21.

  The bottom wall 41 and the top wall 51 have hollow cylindrical portions 47 and 57 for reinforcing reinforcement along the depth direction of the substrate housing box 10 at both edges inside the required amount from both ends in the width direction of the substrate housing box 10. And formed between the inner plastic plates 43 and 53 and the outer plastic plates 46 and 56 in the laminated laminated plate constituting the lower surface wall 41 and the upper surface wall 51. In the illustrated example, the inner plastic plates 43 and 53 are bent and shaped by vacuum forming into a substantially rectangular cross section in a direction away from the outer plastic plates 46 and 56 at both edges in the width direction of the substrate housing box 10. Between the outer plastic plates 46 and 56, hollow cylindrical portions 47 and 57 for joint reinforcement are formed. Further, the joint reinforcing hollow cylindrical portions 47 and 57 have a stepped surface facing the step-like joint portion 38 of the side wall 21 to increase the strength, and are connected to the joint portion 38 of the side wall 21. During the bonding, the stepped shape increases the bonding area to increase the bonding strength.

  Reinforcing ribs 48 and 58 along the width direction of the substrate storage box 10 are provided in the substrate storage box 10 on the inner plastic plates 43 and 53 in the laminated laminated plate of the lower surface wall 41 and the upper surface wall 51. A plurality of the reinforcing reinforcing hollow cylinders 47, 47, 57, 57 are arranged in parallel.

  The inner plastic plates 43 and 53 and the outer plastic plates 46 and 56 in the laminated laminated plate of the lower surface wall 41 and the upper surface wall 51 are portions of the joint reinforcing hollow cylinder portions 47 and 57 and the reinforcing ribs 48 and 58. Except for, it is overlapped and bonded.

  The back wall 61 is made of a single plastic plate in the illustrated example, and is adhered to the back side of the left and right side walls 21, 21, the bottom wall 41, and the top wall 51. The material of the plastic plate constituting the back wall 61 is appropriately selected, but is preferably the same as that of the side wall 21, the bottom wall 41 and the top wall 51. In addition, the illustrated rear wall 61 is formed with a window 62 in the center to reduce weight. The back wall 61 is also composed of a laminated laminated plate of two plastic plates, and a reinforcing hollow cylinder is provided between the inner plastic plate and the outer plastic plate of the laminated laminated plate. You may form in an up-down direction or a width direction.

  Further, in the substrate storage box 10, work arm insertion grooves 12 are formed along the depth direction of the substrate storage box 10 in at least one of the upper part and the lower part of the outer side surface of the side part. In the illustrated example, a gap is formed at the boundary between the upper end of the side wall 21 and the upper surface wall 51 and the boundary between the lower end of the side wall 21 and the lower wall 41, and the working arm insertion groove 12 including the gap is formed. Is formed on the outer surface side of the substrate storage box 10 along the depth direction of the substrate storage box 10. A work arm of a robot is inserted into the upper and / or lower work arm insertion grooves 12 to transport the substrate storage box 10.

  In the substrate accommodation box 10 thus configured, the substrate K is accommodated in the substrate accommodation groove 25 from the substrate loading / unloading port 11 on the front surface, and the work arm of the robot is inserted into the work arm insertion groove 12 in this state. Then, conveyance in a line or the like is performed. At this time, since the substrate housing groove 25 is reinforced by the reinforcing hollow cylinder portions 31 existing above and below the substrate housing groove 25, it is possible to prevent the substrate housing groove 25 from being deformed by the weight of the substrate K. While being able to hold | maintain correctly, the smooth accommodation and taking-out of the board | substrate K can be ensured. Further, the reinforcing hollow cylinder portions 31 above and below the substrate receiving groove 25, and the joining reinforcing hollow cylinder portions 47 and 57 and the reinforcing ribs 48 and 58 on the lower surface wall 41 and the upper surface wall 51, respectively, Since the strength is increased, there is no possibility that the substrate storage box 10 is deformed. Moreover, due to the increased strength of the side wall 21, the lower surface wall 41, and the upper surface wall 51, the wall surface can be made thinner than when the substrate housing box is formed by injection molding, and weight reduction can be realized.

It is a front side perspective view of the board | substrate storage box concerning one Embodiment of this invention. It is a back side perspective view of the board | substrate accommodation box. FIG. 3 is a 3-3 cross-sectional view of FIG. 1. FIG. 4 is a cross-sectional view taken along 4-4 in FIG. 2.

DESCRIPTION OF SYMBOLS 10 Substrate accommodation box 11 Substrate loading / unloading slot 12 Working arm insertion slot 21 Side wall 23 Inner plastic plate constituting laminated laminated plate of side wall 25 Substrate receiving groove 26 Outer plastic plate constituting laminated laminated plate of side wall 31 Reinforcing hollow cylinder part 41 Lower surface wall 43 Inner plastic plate constituting laminated laminated plate of lower surface wall 46 Outer plastic plate constituting laminated laminated plate of lower surface wall 51 Upper surface wall 53 Constructed laminated laminated plate of upper surface wall Inner plastic plate 56 Outer plastic plate constituting the laminated laminated plate on the upper surface wall 47, 57 Bonding reinforcing hollow cylindrical portion 48, 58 Reinforcing rib

Claims (2)

In the substrate storage box (10) which is formed into a box shape by joining the side wall (21), the lower wall (41), the upper wall (51) and the rear wall (61), and the front surface is opened as a substrate outlet.
At least the side wall (21), the lower wall (41), and the upper wall (51) are laminated laminated plates in which two plastic plates (23, 26, 43, 46, 53, 56) are laminated and bonded. Consists of
The side wall (21) is formed into an uneven bent shape in which the inner plastic plate (23) and the outer plastic plate (26) in the laminated laminated plate are repeatedly uneven in the vertical direction, and the inner plastic plate (23), a plurality of substrate receiving grooves (25) along the depth direction of the substrate receiving box are formed, and the position of the substrate receiving groove (25) is the concave and convex shape of the substrate receiving box (10). The inner plastic plate (23) and the outer plastic plate (26) are convex portions (27, 30) with respect to the inside, and the inner plastic plate (23) and the outer plastic plate are formed at the bottom of the substrate receiving groove (25). is a plate (26) is bonded, the outer plus the convex portions (27, 30) relative to the inner inner plastic plate (23) of the substrate housing box (10) Tsu is the click plate (26) between said substrate receiving groove (25) in reinforcing a hollow cylindrical portion along the (31) are formed above and below the substrate receiving groove (25),
The lower surface wall (41) and the upper surface wall (51) are formed by bonding and bonding the hollow cylindrical portions (47, 57) for joining reinforcement along the depth direction of the substrate housing box at both edges in the width direction of the substrate housing box. It is formed between the inner plastic plate (43, 53) and the outer plastic plate (46, 56) in the laminated plate, and the inner plastic plate (43, 53) in the laminated laminated plate is arranged in the width direction of the substrate housing box. Reinforcing reinforcing ribs (48, 58) are provided between the joint reinforcing hollow cylindrical portions (47, 57) toward the inside of the substrate storage box,
The surface of the joint reinforcement hollow cylinder portion (47) of the lower surface wall (41) and the lower edge of the side wall (21) are joined together, and the joint reinforcement hollow cylinder portion (51) of the upper surface wall (51) ( 57) and the upper edge of the side wall (21) are joined together. The working arm insertion groove (12) is formed along at least one of an upper part and a lower part of a side outer surface of the substrate storage box along a depth direction of the substrate storage box. PCB storage box.

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