JP5477638B2 - Base material molding equipment - Google Patents

Description

  The present invention relates to a substrate forming apparatus that conveys a plate-like body made of a material containing vegetable fibers and a thermoplastic resin, and forms the plate-like body into a predetermined shape.

2. Description of the Related Art Conventionally, there is known a thermoformed fiber board that is formed by blending almost the same amount of polypropylene resin fiber and vegetable fiber into a mat shape through a blender process and a former process, and then formed into a plate shape by a press. As the vegetable fiber, kenaf fiber, jute fiber or the like is used. In particular, when kenaf fibers are used, kenaf has the property of absorbing a large amount of CO ₂ by photosynthesis, and is fast in growth, so it is effective for global environmental conservation. Such a thermoformed fiberboard manufacturing method is disclosed in, for example, Patent Document 1. A molded body obtained by heating a mixture of a thermoplastic resin and a vegetable resin, such as this thermoformed fiberboard, and then molding it into a predetermined shape using a cold press mold. Is hereinafter referred to as a substrate.

  In the base material forming step, a method of hanging a plate-like body on a hanger provided with a shaft and transporting the hanger is known. FIG. 20 shows an example of the hanger 130 provided with the shaft 132 in the conventional base material forming apparatus 200, and is a perspective view of the hanger 130 in a state where the plate-like body W is suspended obliquely viewed from the front side. is there.

  As shown in FIG. 20, the hanger 130 includes a cylindrical shaft 132. Two clamps 134 for sandwiching the upper edge of the plate-like body W are attached to the lower portion of the shaft 132. Four rollers 136 are attached to the upper portion of the shaft 132. In the base material forming process using such a hanger 130, the hanger 130 in a state in which the plate-like body W is suspended is conveyed, and the heating process and the molding process of the plate-like body W are performed. When the forming step is finished, the plate-like body W is removed from the hanger 130, and the hanger 130 with the plate-like body W removed is collected.

JP 2009-262431 A

  In the above-described conventional base material forming apparatus 200, for example, the transfer operation of the hanger 130 may be performed when shifting from the heating process to the forming process. During this transfer operation, for example, the shaft 132 may be transported in a state where both sides of the shaft 132 are pivotally supported from below by V-shaped notches. However, since the shaft 132 of the hanger 130 is formed in a cylindrical shape, when the hanger 130 is conveyed in such a state, the hanger 130 swings around the axis of the shaft 132 due to inertial force or vibration during conveyance. There is a fear. As a result, a conveyance failure such as the plate-like body W suspended on the hanger 130 falling or the hanger 130 itself falling may occur, and the operation rate of the base material forming apparatus 200 may be reduced.

  The present invention has been created in view of the above problems. The present invention provides a technique capable of restricting the holding device from swinging around the axis of the support shaft body when the holding device provided with the support shaft body is transported.

  The technology disclosed in the present specification is a base material forming apparatus that conveys a plate-like body made of a material containing vegetable fibers and a thermoplastic resin, and molds the plate-like body into a predetermined shape, above the plate-like body. A holding device having a support shaft body arranged and having a holding portion for holding the upper end portion of the plate-like body on the support shaft body, and transporting the holding device by moving the support shaft body. The present invention relates to a base material forming apparatus including a conveying device and a restricting portion that restricts rotation of the support shaft body around an axis of the support shaft body.

  According to the above-mentioned base material forming device, it is possible to regulate the rotation of the support shaft body of the holding device placed on the transport device around the axis of the support shaft body by the restriction portion. Thereby, it is possible to restrict the holding device from swinging around the axis of the support shaft body. As a result, it is possible to suppress the occurrence of a conveyance failure and to improve the operating rate of the base material forming apparatus.

  The transport device has a pair of bearing portions that pivotally support both side portions of the support shaft body, and transports the holding device in a state in which the support shaft body is pivotally supported on both bearing portions, The restricting portion is configured by a flange portion that protrudes laterally from the bearing portion, and a first abutting portion that is provided on both sides of the support shaft body and is capable of contacting the flange portion. When the flange portion and the contact portion are in contact with each other, the plate-like body suspended by the holding device may be restricted from swinging about the axis of the support shaft body.

  According to this structure, when a flange part and a 1st contact part contact | abut, it is controlled that a support shaft body rotates centering on the axis line of the support shaft body. Thereby, it is possible to restrict the plate-like body suspended by the holding device from swinging around the axis of the support shaft body, and it is possible to suppress conveyance troubles such as dropping of the plate-like body. .

  The transport device includes a plurality of transport rails extending in a direction intersecting the support shaft body and supporting the support shaft body, and the holding device is recovered by transporting the support shaft body along the transport rail. The rotation of the support shaft body is restricted by the restriction portion being provided with a second abutting portion that abuts the conveying rail along the longitudinal direction of the conveying rail. May be.

  According to this configuration, when the second abutting portion abuts along the longitudinal direction of the transport rail, the support shaft body connected to the abutting portion can rotate about the axis of the support shaft body. Be regulated. Thereby, when recovering the holding device, it is possible to suppress a conveyance failure such as dropping of the holding device.

  According to the technology disclosed in this specification, when the holding device provided with the support shaft body is transported, the holding device can be prevented from swinging about the axis of the support shaft body.

The flowchart of the manufacturing method of the base material K is shown. It is sectional drawing of the preforming die 10 for preforming the plate-shaped body W, and shows the state before the preforming die 10 closes. It is sectional drawing of the preforming die 10 for preforming the plate-shaped body W, and shows the state after the preforming die 10 is closed. It is sectional drawing of the main shaping | molding die 20 for carrying out the main shaping | molding of the preforming body W1, and the state before the main shaping | molding die 20 closes and the state by which the preforming die was introduced into the center of a set are shown. It is sectional drawing of the main shaping | molding die 20 for carrying out the main shaping | molding of the preforming body W1, and the state before the main shaping | molding die 20 closes and the state where the preforming die is arrange | positioned at the shaping | molding center side are shown. It is sectional drawing of the main shaping | molding die 20 for carrying out the main shaping | molding of the preforming body W1, and shows the state after the main shaping | molding die 20 closed. The perspective view which looked at the state by which the plate-shaped body W was suspended by the hanger 30 from diagonally forward is shown. The side view which looked at the state by which the plate-shaped body W was suspended by the hanger 30 from the side is shown. The top view which represented the whole base-material shaping | molding apparatus 100 typically is shown. The perspective view of the base-material shaping | molding apparatus 100 except the hanger collection | recovery apparatus 70 is shown. The top view of the base-material shaping | molding apparatus 100 except the hanger collection | recovery apparatus 70 is shown. The side view which looked at the arm 81 of the hanger delivery mechanism 80a (80b) from the side is shown. The front view which looked at the arm 81 of the hanger delivery mechanism 80a (80b) from the front side is shown. The side view which looked at the arm 81 of the hanger delivery mechanism 80a (80b) of the state which mounted the hanger 30 from the side is shown. The front view which looked at the arm 81 of the hanger delivery mechanism 80a (80b) of the state which mounted the hanger 30 from the front side is shown. The top view which looked at the hanger collection | recovery apparatus 70 from upper direction is shown. The side view which looked at the hanger collection | recovery apparatus 70 from the side is shown. The front view which looked at a part of hanger 30 mounted in the conveyance rail of the hanger collection | recovery apparatus 70 from the front side is shown. The perspective view which looked at a part of hanger 30 mounted in the conveyance rail of the hanger collection | recovery apparatus 70 from diagonally forward is shown. The perspective view which looked at the hanger 130 in the conventional base-material shaping | molding apparatus 200 from diagonally forward is shown.

  Embodiments will be described with reference to the drawings. FIG. 1 is a flowchart showing a manufacturing method of the substrate K. As shown in FIG. 1, in order to manufacture the base material K, after heating the plate-shaped body W which consists of the material which mixed the vegetable fiber and the thermoplastic resin (preheating process), the heated plate-shaped body W Is further heated (main heating step), the heated plate-like body W is preformed into a preformed body W1 (preliminary molding step), and the preformed body W1 is main-molded into the substrate K (main molding step). Thereby, the base material K shape | molded by the predetermined shape can be obtained.

The vegetable fiber contained in the plate-like body W is a plant-derived fiber material. Such a fiber material can be collected from, for example, cotton, hemp, sisal, jute, kenaf and the like. Of these, kenaf is particularly preferred. This is because kenaf is effective for global environmental conservation because it grows quickly and absorbs a lot of CO ₂ . Also, it is possible to collect relatively long and strong fibers from kenaf bast.

  As the thermoplastic resin contained in the plate-like body W, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polylactic acid (PLA), or the like can be used. Among these, polypropylene is particularly preferable.

  In order to manufacture the plate-like body W, after making it into a mat shape by blending the material which mixed the vegetable fiber and the thermoplastic resin, the obtained mat body is shape | molded in a plate shape with a hot press. Thereby, the plate-shaped body W which has predetermined | prescribed thickness can be manufactured. Such a manufacturing method of the plate-like body W is disclosed in, for example, Japanese Patent Application Laid-Open Nos. 2001-179716 and 2002-371455. The plate-like body W may be referred to by another name such as “fiber sheet for thermoforming” or “pre-board”.

  By heating the plate-like body W, the thermoplastic resin contained in the plate-like body W can be melted. For example, when the thermoplastic resin contained in the plate-like body W is polypropylene, since the melting point of polypropylene is 160 ° C. to 170 ° C., the plate-like body W is heated to a temperature higher than this (for example, 200 ° C.). Thus, the thermoplastic resin contained in the plate-like body W can be melted.

  2 and 3 are cross-sectional views of a preforming mold 10 for preforming the plate-like body W. FIG. As shown in FIG. 2, the preforming mold 10 has a pair of molds 12 and 14. Among these, one metal mold | die 12 has the shape where the center part was dented, and the other metal mold | die 14 has the shape where the center part protruded. The pair of molds 12 and 14 are arranged on the left and right so that the mold surfaces face each other. And the plate-shaped body W is arrange | positioned in the state suspended from the mold surface of the metal mold | dies 12 and 14 at the up-down direction. As shown in FIG. 3, the pair of molds 12 and 14 constituting the preforming mold 10 is suspended in the vertical direction by moving the mold 12 toward the mold 14 and closing the mold, for example. The plate-like body W can be pressed from both the front and back sides. Thereby, the plate-like body W is shape | molded by the preforming body W1.

  4, 5, and 6 are cross-sectional views of the main mold 20 for main molding the plate-like body W. FIG. As shown in FIG. 4, the main mold 20 has a pair of molds 22 and 24. Among these, one metal mold | die 22 has a shape where the center part was dented, and the other metal mold | die 24 has the shape where the center part protruded. The pair of molds 22 and 24 are arranged on the left and right so that the mold surfaces 22a and 24a face each other. In FIG. 4, the position of the preform W1 disposed at the center of both mold surfaces 22a and 24a is hereinafter referred to as “set center”.

  As shown in FIG. 5, the preform W <b> 1 is arranged in advance on the mold surface 24 a side (molding center side) of the other mold 24 prior to the press work performed by both the molds 22 and 24. Next, as shown in FIG. 6, the pair of molds 22 and 24 constituting the main mold 20 are suspended in the vertical direction by moving the mold 22 toward the mold 24 and closing the mold, for example. It is possible to press the plate W in a state from both the front and back sides.

  As the main mold 20 for main molding the preform W1, a cold press mold is used. The “cold press” here means press molding performed without positively heating the mold surface of the main mold 20, but the mold surface 22 a of the main mold 20 by processing heat or frictional heat. 24a is heated to some extent. By pressing the heated plate W with the main mold 20 (cold press die), the thermoplastic resin contained in the plate W is cooled and solidified. Thereby, the base material K shape | molded by the predetermined shape can be obtained (refer FIG. 6). In FIG. 6, the position of the base material K arranged at the center of both mold surfaces 22 a and 24 a is hereinafter referred to as “molding center”.

  The base material K thus obtained is lightweight and high in strength, and therefore can be used as a base material for vehicle interior materials. For example, the base material K can be used for door trims, instrument panels, seat back boards, partition boards, console boxes, pillar garnishes, quarter trims, and the like.

  As can be seen from a comparison between FIG. 2 and FIG. 4, the clearance CL <b> 1 of the pair of molds 12 and 14 constituting the preforming mold 10 is larger than the clearance CL <b> 2 of the pair of molds 22 and 24 constituting the main mold 20. Is also set larger. For example, when CL2 is 5 mm, the clearance CL1 is set to 10 mm, which is larger than that. Therefore, instead of forming the plate-like body W into the base material K at a time, the plate-like body W is first formed into the preformed body W1, and then the preformed body W1 is formed into the base material K. Thus, it is possible to form in steps (in two steps).

  Further, the preform W1 introduced to the center of the set in the main molding step is moved to the center of the molding to perform the main molding, so that the preform W1 is locked in the middle of closing the molds 22, 24. This can be avoided, and it can be regulated that the central portion of the base material K is stretched and thinned after press working.

  FIG. 7 is a perspective view of the hanger 30 for holding the plate-like body W in a suspended state. FIG. 8 is a side view of the hanger 30.

  As shown in FIG. 7, the hanger 30 is provided with a shaft 32 made of a cylindrical member made of metal such as iron or aluminum. The length of the shaft 32 is formed larger than the lateral width of the plate-like body W. Two clamps 34 for sandwiching the upper edge portion of the plate-like body W are attached to the lower portion of the shaft 32. A roller 36 mounted on a slide rail 62 described later is attached to the upper portion of the shaft 32. A pair of attachment members 38 are provided at both ends of the shaft 32, and the roller 36 is attached to the upper portion of the shaft 32 via the attachment member 38. The rollers 36 are attached to the front surface and the back surface of the attachment member 38, respectively. Accordingly, the four rollers 36 are attached to the hanger 30. The clamp 34 and the attachment member 38 are connected by a bolt (not shown) penetrating the shaft 32 up and down.

  First contact portions 39 a made of a rectangular member made of metal such as iron or aluminum are provided on both sides of the shaft 32 and outside the attachment member 38. The first contact portion 39a is composed of two small piece members. The two small piece members are connected by bolts (not shown) and form one first abutting portion 39a. Further, the two small piece members sandwich the shaft 32 from above and below, whereby the first contact portion 39 a is fixed to the periphery of the shaft 32. Accordingly, the shaft 32 passes through the center of the first contact portion 39a. The bottom surface 39a1 of the first contact portion 39a is formed in a shape that is horizontal when the plate-like body W is suspended from the hanger 30.

  A rectangular second contact portion 39 b is provided inside the attachment member 38. The second contact portion 39b has a shape extending in a direction perpendicular to the shaft 32 in the horizontal direction. The shaft 32 passes through the center of the second contact portion 39b, and the second contact portion 39b is fixed along the periphery of the shaft 32 by appropriate fixing means (not shown) such as bolting. .

  As shown in FIG. 8, in the second abutting portion 39 b, both side surfaces 39 b 1 in the horizontal direction orthogonal to the shaft 32 protrude before the tip 36 a of the roller 36. The clamp 34 has a pair of clamping members made of a metal plate member such as iron or aluminum. Both the clamping members are configured such that the upper edge of the plate-like body W can be clamped by opening and closing the lower end thereof with the hinge 35 as a fulcrum. That is, one of the holding members can be opened and closed between a closed position for holding the upper edge of the plate-like body W and an open position for releasing the upper edge of the plate-like body W with respect to the other. Yes. A spring member 37 is attached between the upper end portions of the both clamping members, and the lower end portions of the both clamping members are urged by the spring member 37 in the closing direction with the hinge 35 as a fulcrum. An anti-slip groove for restricting the plate-like body W from falling downward is formed on the inner surface side of the lower end portions of both clamping members.

  FIG. 9 is a plan view schematically showing the entire base material forming apparatus 100 for forming the base material K. FIG. As shown in FIG. 9, the base material forming apparatus 100 includes a heating device that heats the plate-like body W, a forming device that forms the plate-like body W into the base material K, and a hanger collection device 70. The heating device includes a preheating device 50 and a main heating device 40. The preheating device 50 and the main heating device 40 are arranged in this order from the inlet side of the base material forming device 100, and the main heating device 40 is arranged substantially vertically and substantially horizontally with the preheating device 50 in plan view. . That is, the preheating device 50 and the main heating device 40 are connected in an arrangement orthogonal to the substantially L shape in plan view. The plate-like body W is heated to about 170 ° C. by the preheating device 50 and is put into the heating device 40 in a heated state.

  The hanger collection device 70 is a device for collecting the empty hanger 30 removed from the substrate K after the formation of the substrate K. The empty hanger 30 is conveyed to the carry-in unit 70A of the hanger collection device 70 by a transfer mechanism (not shown) and collected by the collection unit 70B. As described above, the forming process of the base material K is performed while conveying the hanger 30 according to the arrow direction in FIG. The configuration of the hanger collection device 70 will be described in detail later.

  FIG. 10 is a perspective view of the base material forming apparatus 100 that is simply shown with the hanger collection device 70 omitted. FIG. 11 is a plan view of the base material forming apparatus 100 that is simply shown with the hanger collection device 70 omitted.

  As shown in FIG. 10, the heating device 40 includes a hot air circulation type heating furnace 42 that can uniformly heat the plate-like body W by passing the plate-like body W therein, and a plate-like shape inside the heating furnace 42. A transporting device 44 capable of transporting the body W. The internal temperature of the heating furnace 42 is set to, for example, 200 ° C. (an example of the “predetermined temperature” in the present invention), and the plate-like body W heated in the vicinity of 170 ° C. is heated to 200 ° C. and held. The molten state of the thermoplastic resin contained in the plate-like body W can be maintained.

  The conveying device 44 is constituted by two chain conveyors 46a and 46b arranged in parallel, and the two chain conveyors 46a and 46b are driven in synchronization. Both ends of the shaft 32 constituting the hanger 30 are placed on the upper surfaces of the two chain conveyors 46a and 46b. Thereby, the conveying apparatus 44 can convey the plate-shaped body W hold | maintained in the state suspended by the hanger 30 in the inside of the heating furnace 42. FIG.

  Inside the heating furnace 42, a preforming die 10 for pre-forming the plate-like body W is installed. The conveying device 44 and the preforming die 10 are installed at an offset position inside the heating furnace 42. The “offset position” here means “a position where the central axes are separated from each other”. Specifically, the central axis P1 of the transport device 44 and the central axis P2 of the preforming die 10 are in the horizontal direction. This means that the position is far away.

  A main mold 20 is installed below the preforming mold 10. The preforming mold 10 and the main mold 20 are arranged at an offset position. Here, the “offset position” means “a position where the central axes are separated from each other”. Specifically, the central axis P2 of the preforming mold 10 and the central axis P3 of the main mold 20 are vertically moved. It means the position away in the direction.

  In addition, the substantially second half part of the heating furnace 42 is formed in a substantially L shape (see FIG. 10) in a plan view, and can accommodate both the conveying device 44 and the preforming die 10 arranged at the offset position. Yes. The main mold 20 is installed below the preforming mold 10 and outside the heating furnace 42.

  As shown in FIGS. 10 and 11, the base material forming apparatus 100 includes a first slide rail 58 a and a second slide rail 58 b on which the roller 36 attached to the hanger 30 can be rotatably mounted. I have. The first slide rail 58a is disposed substantially vertically and horizontally in plan view with the transport device 44 on the near side of the transport device 44. It is extended to the front side. The second slide rail 58b is disposed substantially vertically and substantially horizontally in plan view with the conveying device 44 on the back side of the conveying device 44, and extends from the terminal portion 40B of the conveying device 44 to the preforming die 10. When the roller 36 (see FIGS. 7 and 8) of the hanger 30 is placed on the first slide rail 58a, only the two rollers 36 attached to the front side (left side in FIG. 8) of the attachment member 38 are provided. Is placed. When the roller 36 of the hanger 30 is placed on the second slide rail 58b, only the two rollers 36 attached to the back side (the right side in FIG. 8) of the attachment member 38 are placed. Since the rollers 36 mounted on the slide rails 58a and 58b are deeply fitted into the apex portions (not shown) of the slide rails 58a and 58b, the rollers 36 are not easily detached from the slide rails 58a and 58b. For this reason, the hanger 30 can be stably conveyed along the 1st slide rail 58a and the 2nd slide rail 58b even in the state in which only the two rollers 36 were mounted in this way.

  Near the first slide rail 58a and the second slide rail 58b, horizontal movement mechanisms (not shown) are respectively provided. The horizontal movement mechanism can move the hanger 30 placed on the first slide rail 58a or the second slide rail 58b in the horizontal direction. Therefore, the hanger 30 placed on the first slide rail 58a can be transferred from the carry-in portion 50A of the preheating device 50 to the carry-in portion 40A of the main heating device 40 by a horizontal movement mechanism. Furthermore, the hanger 30 placed on the second slide rail 58b can be transferred from the terminal end 40B of the transport device 44 to the preforming die 10 by a horizontal movement mechanism.

  The base material forming apparatus 100 also delivers the first hanger delivery mechanism 80a for delivering the hanger 30 from the first slide rail 58a to the transport device 44 and the hanger 30 from the transport device 44 to the second slide rail 58b. Second hanger delivery mechanism 80b. The first hanger delivery mechanism 80a and the second hanger delivery mechanism 80b each include two arms 81, and the two arms 81 can lift both ends of the shaft 32 constituting the hanger 30 from below. ing. In addition, since the 1st hanger delivery mechanism 80a and the 2nd hanger delivery mechanism 80b are formed by the same structure, below, both the hanger delivery mechanisms 80a and 80b shall be collectively called a hanger delivery mechanism 80a (80b), Individual explanation is omitted.

  FIG. 12 is a side view of the arm 81 of the hanger delivery mechanism 80a (80b) viewed from the side. FIG. 13 is a front view of the arm 81 of the hanger delivery mechanism 80a (80b) viewed from the front side. FIG. 14 is a side view of the arm 81 of the hanger delivery mechanism 80a (80b) in a state where the hanger 30 is placed as viewed from the side. FIG. 15 is a front view of the arm 81 of the hanger delivery mechanism 80a (80b) with the hanger 30 mounted, as viewed from the front side.

  As shown in FIGS. 12 and 13, a pair of arms 81 of the hanger delivery mechanism 80a (80b) is provided with a bearing portion 81a and a flange portion 81b, respectively. The bearing portion 81a is provided with a concave portion 81a1 that opens upward. The concave portion 81a1 is formed with a size that fits the shaft 32 in a substantially fitted manner, and the shaft 32 is pivotally supported by the bearing portion 81a by fitting the shaft 32 into the concave portion 81a1. Thereby, the hanger 30 can be mounted on the arm 81 with the hanger 30 supported from below. Further, the recess 81a1 has a shape curved in an arc shape. For this reason, as shown in FIGS. 14 and 15, in a state where the shaft 32 is pivotally supported by the bearing portion 81a of the arm 81, the substantially lower half of the periphery of the shaft 32 abuts on the recess 81a1 of the bearing portion 81a. The shaft 32 is configured not to easily come off from the bearing portion 81a.

  The flange portion 81b has a plate shape and protrudes in the horizontal direction from the lower end edge of the bearing portion 81a toward the end portion of the shaft 32. Further, the flange portion 81 b is located below both side portions of the shaft 32. Furthermore, the upper and lower surfaces of the flange portion 81 b are in a horizontal posture in a state where the plate-like body W is suspended from the hanger 30. Accordingly, as shown in FIGS. 14 and 15, in a state where the shaft 32 is pivotally supported by the bearing portion 81a of the arm 81, the bottom surface 39a1 of the first contact portion 39a and the top surface 81b1 of the flange portion 81b are substantially parallel. Opposite and abut. For this reason, when the flange part 81b and the 1st contact part 39a contact | abut, it is controlled that the shaft 32 rotates centering on the axis line of the shaft 32. FIG. As a result, the swing of the hanger 30 around the axis of the shaft 32 is restricted, and the plate-like body W suspended by the hanger 30 is restricted from swinging around the axis of the shaft 32. .

  As described above, in the base material forming apparatus 100 according to this embodiment, the flange portion 81b and the contact portion 39 are in contact with each other, whereby the shaft 32 is restricted from rotating about the axis of the shaft 32. . Thereby, it is possible to restrict the plate-like body W suspended by the hanger 30 from swinging about the axis of the shaft 32. As a result, conveyance troubles such as dropping of the plate-like body W can be suppressed, and the operating rate of the base material forming apparatus 100 can be improved.

  Next, the structure of the hanger collection | recovery apparatus 70 is demonstrated, referring FIG.16 and FIG.17. FIG. 16 is a plan view of the hanger collection device 70 viewed from above. FIG. 17 is a side view of the hanger collection device 70 viewed from the side.

  As shown in FIGS. 16 and 17, the hanger collection device 70 includes a frame 72 and a plurality of conveyance rails 74 for conveying the hanger 30 to be collected. The frame 72 constitutes the outline of the hanger collection device 70 and supports the transport rails 74. The plurality of transport rails 74 are configured by four first transport rails 74a having a cylindrical shape and two second transport rails 74b having a similar cylindrical shape, and each carry-in portion 70A of the hanger collection device 70 is provided. To the collection unit 70B. Two first transport rails 74 a are arranged on each side of the hanger collection device 70. The 2nd conveyance rail 74b is arranged in parallel with the 1st conveyance rail 74a, and is arranged inside the 1st conveyance rail 74a. The hanger 30 to be collected is placed on the transport rail 74 in a state where the shaft 32 of the hanger 30 and each transport rail 74 intersect each other vertically.

  Further, as shown in FIG. 17, each transport rail 74 is attached to the frame 72 in a state where a gentle slope is lowered from the loading portion 70 </ b> A of the hanger collection device 70 toward the collection portion 70 </ b> B. For this reason, when the hanger 30 is placed on the transport rail 74 located in the carry-in section 70A of the hanger collection device 70, the hanger 30 slides down from the carry-in section 70A toward the collection section 70B due to this inclination and moves to the transport rail 74. Move along.

  FIG. 18 is a front view of a part of the hanger 30 placed on the transport rail 74 of the hanger collection device 70 as viewed from the front side. Specifically, FIG. 18 shows a right side portion of the hanger 30 when the hanger 30 placed on the transport rail 74 is viewed from the direction of arrow A in FIGS. 16 and 17. FIG. 19 is a perspective view of a part of the hanger 30 placed on the transport rail 74 of the hanger collection device 70 as viewed obliquely from the front, and shows a part corresponding to the part shown in FIG.

  When the hanger 30 is placed on the transport rail 74, as shown in FIGS. 18 and 19, the clamps 34 of the hanger 30 are accommodated between the two adjacent first transport rails 74 a. A hanger 30 is placed. In this state, when the hanger 30 moves in parallel along the axial direction of the shaft 32, the clamp 34 comes into contact with the first transport rail 74a. For this reason, the hanger 30 placed on the transport rail 74 is restricted from moving along the axial direction of the shaft 32. As a result, the hanger 30 can be transported in the direction along the transport rail 74. Further, the hanger 30 placed on the transport rail 74 can be prevented from dropping due to vibration during transport. Thereby, it can suppress that a conveyance defect generate | occur | produces.

  Further, as shown in FIGS. 18 and 19, in a state where the hanger 30 is placed on the transport rail 74, the second contact portion 39 b of the hanger 30 and the second transport rail 74 b are in a state of facing each other in parallel. Abut. In this state, the second contact portion 39b extends in parallel along the longitudinal direction of the second transport rail 74b, and the second contact portion 39b is second transported on both sides in the transport direction around the shaft 32. Since the shaft 32 is in contact with the rail 74b, the shaft 32 is restricted from rotating about the axis of the shaft 32. As a result, the hanger 30 is restricted from swinging about the axis of the shaft 32. For this reason, it is possible to prevent the hanger 30 placed on the transport rail 74 from dropping due to inertial force or vibration during transport. Thereby, it can suppress that a conveyance defect generate | occur | produces.

  As described above, the first transport rail 74a plays a role of transporting the hanger 30 along the first transport rail 74a while supporting the hanger 30, and the second transport rail 74b is an axis of the shaft 32 of the hanger 30. It plays the role of regulating the rocking around. Therefore, the first transport rail 74a needs to be formed with higher strength than the second transport rail 74b, and the first transport rail 74a is formed with a larger diameter than the second transport rail 74b. In this embodiment, the diameter of the 1st conveyance rail 74a is 50 mm, and the diameter of the 2nd conveyance rail 74b is 15 mm.

  When a plurality of hangers 30 are placed on the transport rail 74, the hangers 30 may collide with each other due to the adjacent hangers 30 swinging about the axis of the shaft 32, and the shaft 32 and the like may be damaged. As described above, in the base material forming apparatus 100 of the present embodiment, in a state where the plurality of hangers 30 are placed on the transport rail 74, the hangers 30 are restricted from swinging about the axis of the shaft 32. . For this reason, it can suppress that the adjacent hanger 30 collides, and it can prevent that the shaft 32 grade | etc., Damages.

  Further, in the base material forming apparatus 100 of the present embodiment, as described above, in the second contact portion 39 b, both side surfaces 39 b 1 in the horizontal direction orthogonal to the shaft 32 protrude from the front end 36 a of the roller 36. For this reason, when the adjacent hangers 30 come close to each other in a state where the plurality of hangers 30 are placed on the transport rail 74, the second contact portions 39b of the adjacent hangers 30 come into contact with each other (FIGS. 16 and 17). reference). As a result, the collision between the clamps 34 or between the rollers 36 is restricted between the adjacent hangers 30, and the adjacent hangers 30 can be arranged at a predetermined interval, thereby improving workability. You can also.

  The correspondence between the configuration of the embodiment and the configuration of the present invention will be described. The hanger 30 is an example of a “holding device”. Moreover, the hanger delivery mechanism 80a (80b) and the hanger collection | recovery apparatus 70 are examples of a "conveyance apparatus." The combination of the first contact portion 39a and the flange portion 81b and the second contact portion 39b are examples of the “regulating portion”.

The modifications of the above embodiment are listed below.
(1) The hanger 30 may have a configuration in which only one of the first contact portion 39a and the second contact portion 39b is provided.

(2) The second conveyance rail 74b is arranged in parallel to the outside of the first conveyance rail 74a, the first contact portion 39a extends in the longitudinal direction perpendicular to the shaft 32, and the first contact portion 39a is The hanger delivery mechanism 80a (80b) may have both the role of contacting the flange portion 81b and the role of contacting the second transport rail 74b.

(3) In the above embodiment, the flange portion 81b and the first contact portion 39a are in contact with each other in a state where the shaft 32 is supported on the bearing portion 81a of the arm 81, but the shaft 32 is supported on the shaft 32. The shaft 32 may slightly rotate about the axis of the shaft 32 from the above state so that the flange portion 81b and the first contact portion 39a contact each other.

(4) In the above embodiment, the bottom surface of the second contact portion 39b is formed in a shape that is horizontal when the plate-like body W is suspended from the hanger 30. It may be formed in a shape that is parallel to the inclination of the two transport rails 74b.

(5) Three or more clamps 34 may be attached to the hanger 30, and the plate-like body W may be sandwiched by these clamps 34. Moreover, it is good also as a structure by which the 3 or more 2nd contact part 39b is provided in the hanger 30. FIG.

(6) Other than the above embodiment, the arrangement and configuration of the first contact portion 39a and the second contact portion 39b and the arrangement and configuration of the flange portion 81b can be changed as appropriate.

(7) In the above embodiment, the plate-like body is formed on the base material by the preforming step and the main forming step, but the plate-like body may be formed on the base material at a time.

  As mentioned above, although embodiment of this invention was described in detail, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and has technical usefulness by achieving one of the objects.

  10: Preliminary mold, 12, 14, 22, 24: Mold, 20: Main mold, 22a, 24a: Mold surface, 30, 130: Hanger, 32, 132: Shaft, 34, 134: Clamp, 35: Hinge, 36, 136: roller, 36a: tip of roller 36, 37: spring member, 38, 138: mounting member, 39a: first contact portion, 39b: second contact portion, 40: main heating device, 40A , 50A, 70A: carrying-in part, 40B: terminal part, 42: heating furnace, 44: conveying device, 46a, 46b: chain conveyor, 50: preheating device, 58a: first slide rail, 58b: second slide rail, 66: Hanger transfer mechanism, 70: Hanger collection device, 70B: Collection unit, 72: Frame, 74: Transfer rail, 74a: First transfer rail, 74b: Second transfer rail, 80a: First h Gar delivery mechanism, 80b: second hanger transfer mechanism, 81: Arm, 81a: bearing portion, 81a1: recess, 81b: flange portion 100, 200: substrate molding device

Claims (2)

A substrate molding apparatus that conveys a plate-like body made of a material containing vegetable fiber and a thermoplastic resin, and molds it into a predetermined shape,
A holding device having a support shaft disposed above the plate-like body and provided with a holding portion for holding the upper end of the plate-like body on the support shaft;
A transport device that transports the holding device by moving the support shaft;
A restricting portion for restricting the support shaft from rotating about the axis of the support shaft;
Equipped with a,
The transport device has a pair of bearing portions that pivotally support both side portions of the support shaft body, and transports the holding device in a state in which the support shaft body is pivotally supported on both bearing portions,
The restricting portion is configured by a flange portion that protrudes laterally from the bearing portion, and a first abutting portion that is provided on both side portions of the support shaft body and can come into contact with the flange portion.
The flange portion and the first contact portion are in contact with each other, thereby restricting the plate-like body suspended by the holding device from swinging about the axis of the support shaft body. A substrate forming apparatus characterized by the above. The transport device includes a plurality of transport rails extending in a direction intersecting the support shaft body and supporting the support shaft body, and the holding device is recovered by transporting the support shaft body along the transport rail. Is possible,
The rotation of the support shaft is restricted by the restriction portion being configured to include a second contact portion that contacts the transport rail along the longitudinal direction of the transport rail. The substrate molding apparatus according to claim 1.

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