JP2013035630A - Storage rack for resin pipe and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily form a high-strength storage rack by which a resin pipe is stored in a straight shape.SOLUTION: The storage rack 10 is used to store the straight resin pipe P. The storage rack 10 includes a plurality of housing chambers 14 which have a hexagonal cross section, and a plurality of section members 20. The plurality of housing chambers 14 house the straight resin pipe P in a laid state. The plurality of section members 20 are each composed of a peripheral wall 21 sectioning the housing chamber 14, and are combined in a honeycomb state by positionally aligning the peripheral walls 21. The peripheral wall 21 is formed to have a cross-sectional shape provided with an open part 22 by removing a part of a side of a hexagon. The open part 22 of the peripheral wall 21 is covered with the peripheral wall 21 of the adjacent section member 20.

Description

  The present invention relates to a storage shelf for storing molded resin pipes and a method for manufacturing resin pipes.

  Resin pipes are widely used as pipes for residential housing. In recent years, resin pipes molded from polybutene resin have been widely used. Polybutene-made resin pipes are excellent in durability and corrosion resistance, and are therefore used in various applications (for example, for water supply, hot water supply, and drainage). When manufacturing this resin pipe, the resin is extruded by an extruder to form the resin pipe. The resin pipe is cooled immediately after molding and wound into a coil. Thereafter, the resin pipe is cured while being stored for a predetermined time (see Patent Document 1).

  However, since the resin pipe is curled during storage, it is necessary to install the resin pipe after production while extending it straight at the construction site. Therefore, it takes time to handle the resin pipe, and the construction work becomes difficult. Therefore, from the viewpoint of improving the workability on site, it is required that the resin pipe be stored in a straight shape and manufactured in a straight shape. However, a large shelf is necessary to store a plurality of linear resin pipes. Moreover, in order to stably store the resin pipe, it is necessary to increase the strength of the storage shelf. When manufacturing such a storage shelf, a large amount of material is used, and much labor and man-hour are required. As a result, the cost required to store the resin pipe is increased.

JP 2009-45850 A

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to enable a resin pipe to be stored in a linear shape by a storage shelf. Another object is to easily form a high-strength storage shelf and reduce the cost required to store linear resin pipes.

The present invention is a resin pipe storage shelf for storing linear resin pipes, comprising a plurality of hexagonal-shaped storage chambers that store resin pipes in a laid state, and a peripheral wall that partitions the storage chamber. A plurality of partitioning members combined in a honeycomb shape with the positions of the peripheral wall, the peripheral wall is formed in a cross-sectional shape provided with an open portion by removing a part of the hexagonal side, the open portion of the peripheral wall, It is the storage shelf of the resin pipe block | closed by the surrounding wall of an adjacent division member.
The present invention also relates to a resin pipe manufacturing method for manufacturing a resin pipe using a resin pipe storage shelf, the step of forming a linear resin pipe, and housing the molded resin pipe in the storage shelf It is the manufacturing method of the resin pipe which has the process of accommodating in the state which laid down in the chamber, and the process of storing a linear resin pipe in the storage chamber of a storage shelf.

  According to the present invention, the resin pipe can be stored in a linear shape by the storage shelf. In addition, a storage shelf with high strength can be easily formed, and the cost required for storing linear resin pipes can be reduced.

It is a perspective view which shows the manufacturing apparatus of the resin pipe of this embodiment. It is a front view of the storage shelf of this embodiment. It is a front view of one division member shown in FIG. It is sectional drawing which expands and shows one storage chamber.

Hereinafter, an embodiment of a storage shelf (hereinafter referred to as storage shelf) for resin pipes of the present invention will be described with reference to the drawings. Moreover, one Embodiment of the manufacturing method of a resin pipe is described.
The storage shelf of the present embodiment stores linear resin pipes in a linear shape. In addition, the storage shelf stores a plurality of resin pipes in a state where they are laid in a straight line. The storage shelf is provided in a resin pipe manufacturing apparatus (hereinafter referred to as a manufacturing apparatus) and stores the resin pipes immediately after molding. The resin pipe is manufactured using a storage shelf. Below, the example which manufactures the resin pipe for piping (polybutene pipe) using polybutene resin as a material is demonstrated.

FIG. 1 is a perspective view showing the manufacturing apparatus of the present embodiment. In FIG. 1, the principal part of a manufacturing apparatus is typically shown.
As shown in the figure, the manufacturing apparatus 1 includes a control device 2, an extruder 3, a cooling device 4, an inspection device 5, a printing device 6, a moving device 7, a cutting device 8, a guide device 9, And a storage shelf 10. The manufacturing device 1 is controlled by the control device 2 to manufacture the resin pipe P from the resin material R. The resin pipe P moves along a linear movement path W.

  The extruder 3 has a hopper 3A, a cylinder 3B, and a die 3C. The resin material R is supplied from the hopper 3A into the cylinder 3B. The extruder 3 heats the resin material R by a heating means (not shown) in the cylinder 3B. The resin material R is kneaded by a screw (not shown) that rotates in the cylinder 3B. The extruder 3 discharges the resin material R from the discharge port with a screw. The die 3 </ b> C is provided at the discharge port of the extruder 3. The resin material R is extruded from the opening of the die 3C and formed into a cylindrical shape (pipe shape). The extruder 3 continuously extrudes the resin material R from the die 3 </ b> C, and forms a linear resin pipe P from the resin material R.

  The resin pipe P is cooled by the cooling device 4 after being extruded from the extruder 3. The cooling device 4 consists of a water tank, for example, and cools the resin pipe P in a water tank. The resin pipe P passes through the inspection device 5 after being cooled. The inspection device 5 includes a measuring device 5A that measures the size (outer diameter and inner diameter) of the resin pipe P. The inspection device 5 compares the measured value of the size with the reference value, and determines whether or not the size of the resin pipe P is normal based on the size comparison result. The inspection device 5 outputs the size determination result to the control device 2. The printing device 6 prints marks on the outer peripheral surface of the resin pipe P at regular intervals.

  The moving device 7 has a pair of conveying belts 7A and 7B. The resin pipe P is sandwiched between the pair of transport belts 7A and 7B. The pair of transport belts 7A and 7B are driven at the same speed by a driving device (not shown) to pull the resin pipe P. The moving device 7 moves the resin pipe P along the moving path W at a predetermined speed. The molded resin pipe P moves linearly from the extruder 3 toward the storage shelf 10 by the moving device 7. The resin pipe P is cut into a predetermined length (for example, 30 m) by the cutting device 8 and stored in the storage shelf 10.

  The resin pipe P is guided by the guide device 9 (or a person) and accommodated in the storage shelf 10. The resin pipe P is inserted into the storage shelf 10 from one end surface (opening surface 11) of the storage shelf 10. The storage shelf 10 is longer than the resin pipe P to be stored, and stores the resin pipe P while maintaining the linear shape of the resin pipe P. The entire resin pipe P is arranged in the storage shelf 10. The resin pipe P is cured while being stored in the storage shelf 10 for a predetermined time (for example, 80 hours). The resin pipe P is cured in a linear shape without curling. Thereby, the linear resin pipe P is manufactured.

  During the storage in the storage shelf 10, the rear end of the resin pipe P is cut by the cutting device 8. The guide device 9 guides the resin pipes P that are sequentially cut to the storage chambers of the storage shelf 10 to be described later. A large number (for example, a maximum of 4800) of resin pipes P are simultaneously stored in one storage shelf 10. The space in the storage shelf 10 is divided into a plurality of storage units 13 by a frame body 12. The storage unit 13 is a storage space for storing a plurality of resin pipes P. The storage unit 13 has a rectangular cross section and is linearly formed in the longitudinal direction of the storage shelf 10.

FIG. 2 is a front view of the storage shelf 10 of the present embodiment. In FIG. 2, one storage unit 13 of the storage shelf 10 is shown as viewed from the direction of the arrow X in FIG. In FIG. 2, only one resin pipe P is shown.
As shown in the figure, the storage shelf 10 includes a plurality of storage chambers 14 having a hexagonal cross section (here, a regular hexagonal cross section), a plurality of partition members 20 that partition the storage chambers 14, and a holding member 15. . In FIG. 2, for easy understanding, one partition member 20 is given a lattice-like hatching. In addition, a cross section is a cross section orthogonal to the longitudinal direction of the storage chamber 14 and the division member 20 (peripheral wall 21 mentioned later).

  The plurality of storage chambers 14 are formed in a honeycomb shape and each store the entire resin pipe P. The plurality of storage chambers 14 are arranged side by side in the storage unit 13 with one corner positioned below. The storage chamber 14 is a cylindrical space having a hexagonal cross section, and is formed linearly in the longitudinal direction (here, the horizontal direction) of the storage shelf 10. The plurality of storage chambers 14 are arranged in the storage unit 13 without gaps in the horizontal direction and the vertical direction orthogonal to the longitudinal direction of the storage shelf 10. Both ends of the storage chamber 14 in the longitudinal direction are open. An opening at one end of the storage chamber 14 is an insertion port 14 </ b> A for the resin pipe P.

  The resin pipe P is inserted into the accommodation chamber 14 through the insertion port 14A. The resin pipe P is supported by two bottom surfaces (surfaces on both sides of the lower corner) in the storage chamber 14. As a result, the resin pipe P is arranged in a straight line at the bottom in the accommodation chamber 14. Further, the resin pipe P is stably held at the bottom in the accommodation chamber 14. The accommodating chamber 14 accommodates the linear resin pipe P in a state where it is laid down in the horizontal direction. The storage shelf 10 stores and stores a plurality of resin pipes P immediately after molding in the storage chamber 14.

FIG. 3 is a front view of one partition member 20.
The partition member 20 includes a peripheral wall 21 that partitions the storage chamber 14 as shown in the figure. The peripheral wall 21 is formed in a cross-sectional shape in which a part of the hexagonal side is deleted and an open portion 22 is provided. That is, the peripheral wall 21 is formed in a hexagonal cross section having an open portion 22 in part. The peripheral wall 21 consists of a linear cylindrical member, and the open part 22 is provided in a part of wall surface. The opening 22 is formed over the entire length of the peripheral wall 21. The partition member 20 forms the accommodation chamber 14 by the peripheral wall 21. The storage chamber 14 is surrounded by the peripheral wall 21 and formed in the peripheral wall 21. The storage chamber 14 is opened to the outside by an opening portion 22.

  Further, the partition member 20 has a plurality (here, four) of peripheral walls 21. The plurality of peripheral walls 21 are formed side by side on one partition member 20. A wall surface between the plurality of peripheral walls 21 is a wall surface common to adjacent peripheral walls 21. The plurality of peripheral walls 21 are formed so as to be sequentially connected by one wall surface. A plurality of storage chambers 14 are formed side by side in the partition member 20 by the plurality of peripheral walls 21.

  The partition member 20 is formed by extruding a metal material (here, aluminum or aluminum alloy). Thereby, the partition member 20 is formed in the cylindrical member (hollow member) which consists of the several surrounding wall 21 couple | bonded. At the same time, the opening 22 is formed in the peripheral wall 21. The entire peripheral wall 21 is formed in the cross-sectional shape described above. After the extrusion molding, the partition member 20 is subjected to an anodic oxidation treatment (so-called alumite treatment). Anodized films are formed on the inner and outer surfaces of the partition member 20.

  The partition member 20 partitions the plurality of storage chambers 14 by the plurality of peripheral walls 21 formed side by side. The partition member 20 has the same cross-sectional shape over the entire longitudinal direction. An opening 22 is provided for each peripheral wall 21. The opening 22 is formed in the peripheral wall 21 within one surface (the upper surface in FIG. 3) of the partition member 20. In the peripheral walls 21 at both ends of the partition member 20, the open portion 22 is formed on one wall surface. In the middle peripheral wall 21 of the partition member 20, the open portion 22 is formed on two wall surfaces. The peripheral wall 21 has a projecting piece 21 </ b> A on the wall surface provided with the opening 22. The protruding piece 21 </ b> A is formed smaller than the opening portion 22 on the wall surface provided with the opening portion 22.

  Within the storage unit 13 (see FIG. 2), the plurality of partition members 20 are arranged in the horizontal direction. The plurality of partition members 20 are stacked in the vertical direction while being alternately shifted in the opposite direction. In that case, the convex part (corner part) of the division member 20 is arrange | positioned in the recessed part (part between the surrounding walls 21) of the adjacent division member 20. As shown in FIG. The plurality of partition members 20 are arranged in the storage unit 13 without gaps in the horizontal direction and the vertical direction. Thereby, the some division member 20 matches the position of the surrounding wall 21, and is combined in honeycomb form. The plurality of partition members 20 constitute a honeycomb structure in which a plurality of storage chambers 14 are arranged in a honeycomb shape.

  The open portion 22 of the peripheral wall 21 is formed at a position in the peripheral wall 21 that is closed by the peripheral wall 21 of the adjacent partition member 20. The plurality of partition members 20 are combined so as to close the open portion 22 of the peripheral wall 21. That is, the open portion 22 of the peripheral wall 21 is blocked by the other peripheral wall 21. Here, the partition member 20 contacts the lower surface of the partition member 20 combined upward. The opening 22 on the upper surface of the partition member 20 is closed by the lower surface of the upper partition member 20. A plurality of storage chambers 14 independent from each other are formed in the storage shelf 10 by closing the open portion 22 of the peripheral wall 21.

  The open part 22 of the outermost peripheral wall 21B is formed at a position not exposed to the outside in the peripheral wall 21B. The outermost peripheral wall 21 </ b> B is the peripheral wall 21 that is disposed on the side portion of the plurality of partition members 20 when the plurality of partition members 20 are combined. The open portion 22 of the peripheral wall 21B is formed in a portion facing the adjacent peripheral wall 21 in the peripheral wall 21B. As a result, the open portion 22 of the peripheral wall 21 </ b> B is blocked by the adjacent peripheral wall 21.

  After the plurality of partition members 20 are combined, the holding member 15 is attached to the storage shelf 10. The holding member 15 is made of a plate-like member and is disposed between the partition member 20 and the frame body 12. Here, the holding member 15 is inserted above and on one side of the plurality of partition members 20. The plurality of partition members 20 are fastened from the two directions (here, the vertical direction and the horizontal direction) by the holding member 15 and the frame body 12. Thereby, the plurality of partition members 20 are fixed to the storage shelf 10. The holding member 15 presses and holds the plurality of partition members 20. By being pressed by the holding member 15, the peripheral wall 21 having a hexagonal cross section is precisely combined. As a result, displacement of the plurality of partition members 20 is prevented. The plurality of storage chambers 14 are arranged at respective set positions.

  In the middle of the partition member 20 in the longitudinal direction, a fastening member (for example, a band) (not shown) is attached to the plurality of partition members 20. The fastening member fastens the plurality of partition members 20. The plurality of partition members 20 are bundled by a fastening member. The fastening member presses and holds the plurality of partition members 20. Therefore, the fastening member is also a holding member.

FIG. 4 is an enlarged cross-sectional view showing one storage chamber 14.
The storage shelf 10 includes a protection member 16 that protects the resin pipe P in the accommodation chamber 14. The protective member 16 is a protective sheet formed of a resin into a sheet shape, and is inserted into the storage chamber 14. The protection member 16 is disposed along the peripheral wall 21 and has a cylindrical shape in the accommodation chamber 14. The resin pipe P is inserted into the cylindrical protection member 16. The protection member 16 is disposed around the resin pipe P in the accommodation chamber 14. The protection member 16 is provided between the resin pipe P and the peripheral wall 21 in each of the plurality of storage chambers 14.

  The partition member 20 and the storage chamber 14 are similarly provided in the plurality of storage units 13 (see FIG. 1). The resin pipe P is pushed by the moving device 7 and inserted into each storage chamber 14. The molded resin pipe P is stored in the storage chamber 14 of the storage shelf 10 in a laid state. A plurality of linear resin pipes P are stored in the storage chamber 14 to manufacture a plurality of resin pipes P. The manufactured resin pipe P is taken out from the storage shelf 10 and used.

  As described above, in this embodiment, the resin pipe P can be stored in a linear shape by the storage shelf 10. Thereby, since the linear resin pipe P can be manufactured, the handling of the resin pipe P becomes easy. Since the construction work of the resin pipe P is facilitated, the workability at the site can be improved. Since the resin pipe P is cured in a linear shape, it is possible to prevent the resin pipe P from being curled even when the resin pipe P after manufacture is wound in a coil shape. The resin pipe P is restored from a coil shape to a linear shape.

  Since the plurality of partition members 20 are combined in a honeycomb shape, the storage shelf 10 can have a high strength structure (honeycomb structure). As a result, the resin pipe P can be stored stably. By combining a plurality of partition members 20, the storage shelf 10 can be easily formed. Since the open portion 22 is provided on the peripheral wall 21, the amount of material used for the partition member 20 can be reduced. Thereby, the cost of the storage shelf 10 can be significantly reduced. By combining the plurality of partition members 20, the open portion 22 is closed, so that the storage chamber 14 having a hexagonal cross section can be formed without taking time and effort. Since the storage chambers 14 are arranged in a honeycomb shape, the storage chambers 14 can be arranged on the storage shelf 10 with high density. Therefore, the storage shelf 10 can be made relatively small. Thus, the storage shelf 10 with high strength can be easily formed. Moreover, the cost required for storage of the linear resin pipe P can be reduced.

  In the partition member 20 in which the peripheral wall 21 does not have the open portion 22, the inner surface treatment of the peripheral wall 21 becomes more difficult as the partition member 20 becomes longer. On the other hand, by providing the opening 22 on the peripheral wall 21, various treatments (for example, anodizing treatment) can be performed on the inner surface of the peripheral wall 21 regardless of the length of the partition member 20. Even if burrs or minute protrusions are generated on the inner surface of the peripheral wall 21, burrs and protrusions in the peripheral wall 21 can be removed by the inner surface treatment. The inner surface of the peripheral wall 21 can also be smoothed. As a result, it is possible to prevent the resin pipe P from being damaged in the peripheral wall 21.

  Since the plurality of partition members 20 are pressed and held by the holding member 15, the plurality of partition members 20 can be firmly and easily fixed. There is no need to join the plurality of partition members 20 by bonding or welding. Since the resin pipe P can be protected in the accommodation chamber 14 by the protective member 16, it is possible to reliably prevent the resin pipe P from being damaged. By not exposing the open portion 22 of the outermost peripheral wall 21 </ b> B to the outside, it is possible to prevent the protective member 16 from protruding from the storage chamber 14. Garbage does not enter the storage chamber 14 in the peripheral wall 21B.

  In the present embodiment, four peripheral walls 21 are connected to one partition member 20. On the other hand, one or two or more peripheral walls 21 may be formed on one partition member 20. However, when the plurality of peripheral walls 21 are formed on the partition member 20, the plurality of partition members 20 can be combined efficiently. The storage shelf 10 can also be formed more easily.

  The partition member 20 is preferably formed by extruding a metal material. In this case, the partition member 20 having a predetermined cross-sectional shape can be easily formed. Since the strength of the partition member 20 is also increased, it is possible to prevent the partition member 20 from being deformed by the weight of a large number of resin pipes P. On the other hand, depending on the number of stored resin pipes P, the partition member 20 may be formed by extruding a resin material.

  DESCRIPTION OF SYMBOLS 1 ... Resin pipe manufacturing apparatus, 2 ... Control apparatus, 3 ... Extruder, 3A ... Hopper, 3B ... Cylinder, 3C ... Die, 4 ... Cooling device, 5 ... Inspection device, 5A ... Measuring device, 6 ... Printing device, 7 ... Moving device, 7A, 7B ... Conveying belt, 8 ... Cutting device, 9 ... Guide device, DESCRIPTION OF SYMBOLS 10 ... Storage shelf, 11 ... Opening surface, 12 ... Frame, 13 ... Storage part, 14 ... Storage chamber, 14A ... Insertion port, 15 ... Holding member, 16 ... Protection member, 20 ... Partition member, 21 ... Peripheral wall, 22 ... Opening part, P ... Resin pipe, R ... Resin material, W ... Movement path.

Claims (6)

A resin pipe storage shelf for storing linear resin pipes,
A plurality of storage chambers having a hexagonal cross section for storing the resin pipe in a laid state, and a peripheral wall that partitions the storage chamber, and a plurality of partition members that are combined in a honeycomb shape by aligning the positions of the peripheral walls,
The peripheral wall is formed in a cross-sectional shape in which a part of the hexagonal side is removed and an open part is provided,
A storage shelf for resin pipes in which an opening portion of a peripheral wall is closed by a peripheral wall of an adjacent partition member. In the storage shelf of the resin pipe according to claim 1,
A storage shelf for resin pipes, wherein the partition members have a plurality of peripheral walls formed side by side. In the storage shelf of the resin pipe according to claim 1 or 2,
A resin pipe storage shelf including a holding member that holds and holds a plurality of partition members. In the storage shelf of the resin pipe according to any one of claims 1 to 3,
A resin pipe storage shelf provided with a protective member disposed around the resin pipe in the housing chamber to protect the resin pipe. In the storage shelf of the resin pipe according to claim 4,
The storage shelf of the resin pipe formed in the position where the opening part of the surrounding wall arrange | positioned at the side part of a some division member is not exposed outside in a surrounding wall. A resin pipe manufacturing method for manufacturing a resin pipe using the resin pipe storage shelf according to any one of claims 1 to 5,
Forming a linear resin pipe;
A step of storing the molded resin pipe in a storage shelf storage state,
Storing linear resin pipes in the storage chamber of the storage shelf; and
The manufacturing method of the resin pipe which has this.

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