JP2017019223A - Molded-article producing device, molded-article producing method and molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molded-article producing device with which a sheet member can be shaped into a complicated shape: to provide a molded-article producing method: and to provide a molded article.SOLUTION: A molded-article producing device 1 includes a conveyance device 12 conveying a sheet member 100, a heating device 13 heating the sheet member 100 conveyed by the conveyance device 12, and a cover opening/closing device 52 shaping the sheet member 100. The cover opening/closing device 52 is structured so as to shape the sheet member 100 multiple times.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a molded product manufacturing apparatus that shapes a sheet member to manufacture a molded product, a method for manufacturing the molded product, and a molded product.

  Conventionally, after heating a sheet-like member (hereinafter referred to as a sheet member) formed of a thermoplastic resin material, the sheet member is placed in a mold, and the mold is clamped by a mold clamping device. A technique for forming a molded product by shaping into a predetermined shape is known. A technique using a thermoplastic prepreg formed into a sheet shape from a fiber material and a thermoplastic resin material is also known as a sheet member for molding a molded product.

  A technique for forming a molded product by performing injection molding using a shaped sheet member as an insert member is also known. As a manufacturing apparatus that performs such injection molding, a technique is known in which an injection process and a pre-shaped process are simultaneously started and the respective processes are advanced (see, for example, Patent Document 1).

JP 2012-179773 A

  The manufacturing apparatus described above has the following problems. That is, in the manufacturing apparatus described above, the sheet member is shaped in the pre-shaped process, but this pre-shaped process is performed only once because of the cause of the solidification of the sheet member. Therefore, if the shape for shaping the sheet member becomes complicated, there is a problem that it is difficult to shape the sheet member into a complicated shape in a single shaping step. Further, depending on the degree of the temperature decrease of the sheet member, the sheet member is solidified, and the sheet member is broken in the shaping process, which causes a decrease in yield. In addition, the mold may be damaged by the sheet member.

  Further, when a thermoplastic prepreg is used for the sheet member, since the fiber material is used for the thermoplastic prepreg, the thermoplastic prepreg does not stretch during pressing. For this reason, in the case of shaping a thermoplastic prepreg, there is a problem that it is difficult to form a more complicated shape than a sheet member made of a thermoplastic resin material.

  Therefore, an object of the present invention is to provide a molded product manufacturing apparatus, a molded product manufacturing method, and a molded product that can shape a sheet member into a complicated shape.

  In order to solve the above problems and achieve the object, the molded product manufacturing apparatus, the molded product manufacturing method, and the molded product of the present invention are configured as follows.

  According to one aspect of the present invention, a molded article manufacturing apparatus includes a conveying device that conveys a sheet member, a heating device that heats the sheet member conveyed by the conveying device, and a mold opening and closing that shapes the sheet member. And the mold opening / closing device shapes the sheet member a plurality of times.

  According to one aspect of the present invention, in the method of manufacturing a molded article, a sheet member is conveyed by a conveying device to a heating device that heats the sheet member and heated, and is heated by the heating device by the conveying device. The sheet member is conveyed and arranged in a mold, and the sheet member is shaped a plurality of times by the mold.

  According to one aspect of the present invention, the molded product is a molded product manufactured by the above-described method for manufacturing a molded product.

  According to the present invention, it is possible to provide a molded product manufacturing apparatus, a molded product manufacturing method, and a molded product capable of shaping a sheet member into a complicated shape.

The perspective view which shows typically the structure of the molded article manufacturing apparatus which concerns on the 1st Embodiment of this invention. The flowchart which shows one of the manufacturing methods of the molded article using the molded article manufacturing apparatus. The flowchart which shows one of the manufacturing methods of the molded article using the molded article manufacturing apparatus.

Hereinafter, a molded product manufacturing apparatus 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.
FIG. 1 is a perspective view schematically showing a configuration of a molded product manufacturing apparatus 1 according to the first embodiment of the present invention, and FIG. 2 is a flowchart showing one method of manufacturing a molded product 101 using the molded product manufacturing apparatus 1. FIG. 3 is a flowchart showing one method of manufacturing the molded product 101 using the molded product manufacturing apparatus 1.

  As shown in FIG. 1, the molded product manufacturing apparatus 1 includes, for example, a first storage unit 11, a transport device 12, a heating device 13, a mold device 14, an injection device 15, and a second storage unit 16. And a control device 19. The molded product manufacturing apparatus 1 is disposed in a laying range 2 such as in a factory, and a mold apparatus 14 and an injection apparatus 15 are disposed on the base 3. For example, the molded product manufacturing apparatus 1 can manufacture the molded product 101 by heating the sheet member 100 with the heating device 13 and then shaping the sheet member 100 multiple times with the mold device 14 and injection molding with the injection device 15. Is formed.

  For example, the sheet member 100 is formed in a sheet shape from a material using a thermoplastic resin. The sheet member 100 is, for example, a thermoplastic prepreg 100. In the present embodiment, the sheet member 100 will be described below as the thermoplastic prepreg 100.

  The thermoplastic prepreg 100 is made of a fiber material such as glass or carbon and a thermoplastic resin material. Although the thermoplastic prepreg 100 shows an example in which the planar shape is formed in a square shape in FIG. 1, the thermoplastic prepreg 100 is a sheet shape and is shaped into the shape of the molded article 101. It is appropriately formed in a suitable shape. The thermoplastic prepreg 100 is formed in, for example, a rectangular shape, a triangular shape, an elliptical shape, or the like, or a different shape capable of forming the molded product 101. The thermoplastic prepreg 100 is used as an insert member.

  The first storage unit 11 is formed so that a plurality of thermoplastic prepregs 100 can be stored. For example, the first storage unit 11 is formed so that the thermoplastic prepreg 100 can be stored in a vertical posture. In addition, the 1st storage part 11 may be formed so that the thermoplastic prepreg 100 can be stored in a horizontal posture and can be changed from a horizontal posture to a vertical posture, for example.

  Here, the vertical posture (vertical posture) of the thermoplastic prepreg 100 is a posture in which the main surface of the thermoplastic prepreg 100 is substantially along the direction of gravity, that is, a posture extending in the vertical direction, or equivalent to these postures. Is the attitude. Further, the horizontal posture (lateral posture) of the thermoplastic prepreg 100 is a posture in which the main surface of the thermoplastic prepreg 100 is substantially along the horizontal direction, that is, a posture along the installation surface of the molded product manufacturing apparatus 1 or these postures. The posture is equivalent.

  The conveying device 12 is formed so that the thermoplastic prepreg 100 can be conveyed in a vertical posture from the first storage unit 11 of the thermoplastic prepreg 100 to the heating device 13 and the mold device 14. Specifically, the transport device 12 includes, for example, a chuck device 21 and a transport mechanism 22.

  The chuck device 21 includes, for example, a support portion 31 provided in the transport mechanism 22, a plurality of chucks 32, an opening / closing means 33 that opens and closes the chuck 32, and a cooling device 34. The chuck device 21 is formed such that the thermoplastic prepreg 100 can be held at a plurality of positions by a plurality of chucks 32. The chuck device 21 is an example of a holding device that holds the thermoplastic prepreg 100.

  The support portion 31 is formed to be able to support a plurality of chucks 32. The support portion 31 is formed to be movable by the transport mechanism 22. The chuck 32 is driven by the opening / closing means 33 so that its tip can be opened and closed. The chuck 32 is formed so that at least the width of the tip that holds the thermoplastic prepreg 100 is narrow. The plurality of chucks 32 are supported by the support portion 31 such that the distance between them can be adjusted.

  For example, the chuck 32 includes a pair of claw portions 32 a provided on the support portion 31. For example, the pair of claw portions 32 a is formed such that one can move with respect to the other by the opening / closing means 33. The nail | claw part 32a is formed with the material with good heat resistance, for example. The claw portion 32a is made of, for example, a stainless material or aluminum.

  The chuck 32 is driven by the opening / closing means 33 in a state where the end portion of the thermoplastic prepreg 100 is positioned between the tips of the claw portions 32a, and is brought into a closed state. The chuck 32 is formed to be able to hold the thermoplastic prepreg 100 by maintaining the closed state.

  The opening / closing means 33 is a drive source that opens and closes the chuck 32 by moving one of the claw portions 32a with respect to the other, and for example, a pneumatic cylinder is used. The opening / closing means 33 is electrically connected to the control device 19 via the signal line S.

  The cooling device 34 is formed to be able to cool the chuck 32, for example. The cooling device 34 is formed to be able to cool the chuck 32 by, for example, injecting air onto the chuck 32. The cooling device 34 is electrically connected to the control device 19 via a signal line S.

  The cooling device 34 is formed to be able to cool at least a portion of the claw portion 32a that contacts the thermoplastic prepreg 100 and its peripheral portion. The cooling device 34 is supported by the support portion 31, or is disposed at a position where the chuck 32 can be cooled in the previous process before the chuck 32 moves to the first storage portion 11. The cooling device 34 may be positioned above the heating device 13 and may be cooled in a range that does not affect the thermoplastic prepreg 100 even while the thermoplastic prepreg 100 is being heated.

  The transport mechanism 22 is a mechanism that sequentially transports the chuck 32 of the chuck device 21 to the first storage unit 11, the heating device 13, and the mold device 14. For example, the support unit 31 is configured to be slidable. The transport mechanism 22 is, for example, a rail. The transport mechanism 22 may be an articulated robot or the like. The transport mechanism 22 is electrically connected to the control device 19 via a signal line S.

  As shown in FIG. 1, the heating device 13 includes a pair of heating units 41 that can heat the thermoplastic prepreg 100 and face each other with a gap therebetween. For example, the heating unit 41 is laid on the laying range 2. It is supported by the support part. In the pair of heating units 41, a heating surface 41 a that heats the thermoplastic prepreg 100 is disposed along the main surface of the thermoplastic prepreg 100.

  That is, the pair of heating units 41 are arranged in a vertical posture (for example, a vertically long rectangular parallelepiped along the direction of gravity), like the thermoplastic prepreg 100. The pair of heating parts 41 oppose each other with a space through which a portion of the tip of the claw part 32a of the chuck 32 and the thermoplastic prepreg 100 held by the chuck 32 can pass.

  The heating unit 41 includes, for example, one or a plurality of infrared heaters provided on the opposed heating surfaces 41a, and passes the thermoplastic prepreg 100 that passes between the heating units 41 or stops between the heating units 41 with a predetermined amount. It is formed so that it can be heated to a temperature. Here, the predetermined temperature is a temperature at which the thermoplastic prepreg 100 can be shaped in the mold apparatus 14. The heating unit 41 may be provided with a cover that blocks heat, for example, in a range above the chuck 32 and not facing the thermoplastic prepreg 100.

  The mold device 14 includes a mold 51 that can be opened and closed, and a mold clamping device 52 that opens and closes the mold 51.

  The mold 51 includes a fixed mold 53 and a movable mold 54. The movable die 54 is formed to be movable with respect to the fixed die 53. In the fixed mold 53 and the movable mold 54, cavities 53a and 54a having a shape for forming the molded product 101 are formed on opposing surfaces facing each other. In the closed state of the mold 51, a space having the shape of the molded product 101 is formed by the cavities 53 a and 54 a of the fixed mold 53 and the movable mold 54.

  The mold clamping device (mold opening / closing device, opening / closing device) 52 is formed, for example, so that the mold 51 can be opened and closed and the mold can be clamped. The mold clamping device 52 includes a stationary platen 56, a movable platen 57 movable with respect to the stationary platen 56, a toggle mechanism (opening / closing mechanism) 58 for moving the movable platen 57, and a drive source (driving) for driving the toggle mechanism 58. Part) 59 and a plurality of tie bars 60 for guiding the movement of the movable platen 57 with respect to the fixed platen 56. The mold clamping device 52 is an example of a molding device that molds the molded product 101.

  The stationary platen 56 is formed to be able to support the stationary mold 53. The moving plate 57 is formed to be able to support the moving mold 54. The toggle mechanism 58 is driven by a drive source 59 to move the moving plate 57 forward and backward with respect to the fixed plate 56. The drive source 59 is configured to be able to drive the toggle mechanism 58. The drive source 59 is electrically connected to the control device 19 via the signal line S. The drive source 59 is, for example, a motor that is driven and controlled by the control device 19. The drive source 59 is formed so that the mold 51 can be clamped with a predetermined load by controlling the motor torque by the control device 19.

  The plurality of tie bars 60 are formed so as to be able to guide the moving plate 57 so as to advance and retract linearly with respect to the fixed plate 56. The plurality of tie bars 60 are provided at four locations so as to pass the fixed plate 56 and the moving plate 57, for example.

  The injection device 15 includes, for example, a housing 61, a cylinder 62, a screw 63, a hopper 64, a moving means 65, a driving device 66, and a cylinder heating device 67. The injection device 15 is an example of a molding device that molds the molded product 101 together with the mold clamping device 52 by injecting a resin material (molding material) into the mold 51 of the mold device 14.

  The housing 61 is formed so as to be able to support, for example, the cylinder 62, the screw 63, and the hopper 64, and to accommodate the driving device 66 therein. The cylinder 62 accommodates the screw 63 therein. The cylinder 62 has an injection nozzle 62a at its tip. The injection nozzle 62 a is formed so as to be connectable to a gate formed in the mold 51. The screw 63 is formed so as to be rotatable within the cylinder 62 and to be movable back and forth with respect to the cylinder 62.

  The hopper 64 accommodates a molten resin material (molding material) that performs injection molding. The hopper 64 is formed so that the accommodated resin material can be supplied into the cylinder 62.

  The moving means 65 is, for example, disposed on the base 3, provided with a plurality of rails 71 extending toward the fixed mold 53 and the fixed platen 56, and a plurality of rails 71 provided at the lower part of the housing 61 and capable of sliding the rails 71. The guide 72 is provided. The moving means 65 is formed so that the guide 72 is guided by the rail 71 so that the housing 61 and the components supported by the housing 61 can be advanced and retracted along the rail 71 with respect to the mold apparatus 14.

  The drive device 66 includes, for example, a first drive device 74 that rotates the screw 63, a second drive device 75 that moves the screw 63 forward and backward with respect to the cylinder 62, and the housing 61 along the rail 71 with respect to the mold device 14. And a third drive device 76 that moves forward and backward.

  The first driving device 74 is formed so as to be able to supply a fixed amount of the resin material supplied from the hopper 64 by rotating the screw 63. The first drive device 74, the second drive device 75, and the third drive device 76 are electrically connected to the control device 19 via the signal line S.

  The cylinder heating device 67 is formed so as to heat the cylinder 62. The cylinder heating device 67 is attached to the cylinder 62. The cylinder heating device 67 is formed so as to melt the resin material supplied from the hopper 64 by heating the cylinder 62. The cylinder heating device 67 is electrically connected to the control device 19 via a signal line S.

  The 2nd storage part 16 is formed so that the shape | molded molded article 101 can be stored. The second storage unit 16 is, for example, a pallet or a container, and is formed so that a fixed number of molded products 101 can be stored.

  The control device 19 is formed so as to be able to control the transport device 12, the mold device 14, and the injection device 15. In addition, the control device 19 divides the mold from the start of shaping to the completion of shaping into a plurality of processes when shaping the thermoplastic prepreg 100 into a predetermined shape of the molded article 101 so as to perform shaping. The fastening device 52 is controlled. The control device 19 includes, for example, torque detection means (detector, torque detector) 81 that can detect motor torque that is torque of the drive source 59 from the electric power supplied to the drive source 59 and / or the output of the drive source 59. I have. In addition, the control device 19, for example, in each of the plurality of shaping processes, the moving distance and the number of times of the mold 51 that can drive the drive source 59 so that a predetermined load is applied to the thermoplastic prepreg 100. Is stored.

  The control device 19 is configured to be able to control the movement operation of the chuck 32 (support portion 31) by controlling the transport mechanism 22. For example, the control device 19 is formed so as to be able to detect the position of the support portion 31 of the transport device 12.

  The control device 19 is configured to control the opening / closing operation of the chuck 32 by controlling the opening / closing means 33. The control device 19 is configured to control the cooling of the chuck 32 by controlling the cooling device 34.

  The control device 19 is configured to control the drive source 59 to drive the toggle mechanism 58 and to control the forward / backward movement of the movable die 54.

  The control device 19 controls the first drive device 74, the second drive device 75, and the third drive device 76, so that the screw 63 rotates and advances and retracts, and the housing 61 advances and retracts (the injection device 15 advances and retracts). Operation) is made controllable. The control device 19 is configured to control the heating operation of the cylinder 62 by controlling the cylinder heating device 67.

  The storage unit 82 stores information for performing a heating operation and a shaping operation, for example. For example, the storage unit 82 appropriately sets the thermoplastic prepreg 100 at each shaping time of the thermoplastic prepreg 100 as a time for heating the thermoplastic prepreg 100, the number of times of shaping the thermoplastic prepreg 100 after heating, and a threshold value. The motor torque that can be shaped is stored.

  The control device 19 has the following functions (1) to (4).

  (1) A function of causing the thermoplastic prepreg 100 to perform a heating operation and a shaping operation.

  (2) A function of determining the number of times of performing the heating operation and the shaping operation of the thermoplastic prepreg 100.

  (3) A function of determining the motor torque of the drive source 59 by comparing it with a threshold value.

  (4) A function of transporting the thermoplastic prepreg 100 from the mold 51 to the heating device 13.

Next, these functions (1) to (4) will be described.
Function (1) is that the control device 19 controls the conveying device 12 and the mold clamping device 52 to heat the thermoplastic prepreg 100, and then conveys it to the mold 51 and drives the mold clamping device 52. This is a function of shaping the thermoplastic prepreg 100 with the mold 51. The function (1) is a function for executing a plurality of heating operations and shaping operations on one thermoplastic prepreg 100 based on information stored in the storage unit 82. That is, the function (1) is a function for repeatedly performing the heating process and the shaping process.

  Function (2) determines the number of heating operations and shaping operations of the thermoplastic prepreg 100, and the storage unit 82 used for the heating operation and shaping operations performed in function (1) according to the determined number of times. This is a function for selecting stored information.

  Function (3) detects the motor torque of drive source 59 during the shaping operation when the number of times determined in function (2) has not been reached, and the detected motor torque is within the first threshold. This is a function for determining whether or not. Further, when the function (3) does not reach the number of times determined in the function (2) and the detected motor torque exceeds the threshold, the thermoplastic prepreg 100 starts to solidify or has solidified. It is a function to judge.

  The function (4) has a function of conveying the thermoplastic prepreg 100 from the mold 51 to the heating device 13 after determining that the thermoplastic prepreg 100 starts to solidify or solidifies in the function (3). Yes.

Next, one method of manufacturing the molded product 101 using the molded product manufacturing apparatus 1 configured as described above will be described with reference to FIGS.
First, the control device 19 controls the transport device 12 to transport the thermoplastic prepreg 100 to the heating device 13 (step ST11). Specifically, the control device 19 moves the chuck 32 to the first storage unit 11 and opens the chuck 32. In addition, when the thermoplastic prepreg 100 is transported to the heating device 13 before this cycle, the chuck 32 is cooled by the cooling device 34.

  Next, the chuck 32 is further moved so that the tip of the claw portion 32 a is positioned on the peripheral edge (edge, edge) of the thermoplastic prepreg 100 to close the chuck 32, and the thermoplastic prepreg 100 is held by the chuck 32. To do.

  Next, the chuck 32 is moved to move the thermoplastic prepreg 100 between the pair of heating units 41. Next, the control device 19 causes the heating device 13 to heat the thermoplastic prepreg 100 to a predetermined temperature based on the heating time stored in the storage unit 82 as function (1) (step ST12). The thermoplastic prepreg 100 is softened by being heated to a predetermined temperature by passing between the pair of heating units 41 of the heating device 13 or stopping between the pair of heating units 41 of the heating device 13. It becomes a state.

  Next, the control device 19 transports the thermoplastic prepreg 100 to the mold 51 with the transport device 12 (more specifically, the chuck 32 is moved), and arranges the thermoplastic prepreg 100 in the mold 51 ( Insert) (step ST13). At this time, for example, the thermoplastic prepreg 100 is positioned by fixing the thermoplastic prepreg 100 to positioning pins provided on the fixed mold 53 or the movable mold 54.

  Next, the control unit 19 drives the toggle mechanism 58 by driving the drive source 59 based on the information stored in the storage unit 82, and moves the movable mold 54 toward the fixed mold 53. Tightening is performed (step ST14). As a result, the thermoplastic prepreg 100 is pressed by the mold 51, and is shaped by being guided by the shapes of the cavities 53a and 54a in a shape corresponding to the number of heating operations and shaping operations.

  When this shaping operation is performed, the control device 19 determines the motor torque of the drive source 59 by comparing it with a threshold value as a function (3).

  Specifically, as shown in the flowchart of FIG. 3, first, the control device 19 detects the motor torque of the drive source 59 by the torque detection means (torque detection unit) 81 during shaping (step ST21). Next, the control device 19 compares the detected motor torque with the first threshold value stored in the storage unit 82 (step ST22).

  When the detected motor torque is within the first threshold value (Yes in step ST22), the control device 19 continues the shaping operation (step ST23).

  When the detected motor torque exceeds the first threshold (No in step ST22), the control device 19 determines that the thermoplastic prepreg 100 has started to solidify or has solidified, and stops the shaping operation ( Step ST24).

  Next, the control device 19 drives the toggle mechanism 58 to act in the opposite direction to that at the time of mold clamping by driving the drive source 59 in the opposite direction to that at the time of mold clamping. The movable mold 54 is moved away from the fixed mold 53, and the mold is opened (the mold 51 is opened). Next, the control device 19 controls the transport device 12 to open the chuck 32 and move the chuck 32 to a position where the thermoplastic prepreg 100 in the mold 51 can be gripped. Next, the control device 19 controls the conveying device 12 to close the chuck 32 so that the thermoplastic prepreg 100 being shaped is gripped by the claw portion 32a of the chuck 32. At this time, the control device 19 extrudes the thermoplastic prepreg 100 in the middle of shaping from the mold 51 (the movable die 54 or the fixed die 53) until the chuck 32 can grip the thermoplastic prepreg 100 in the middle of shaping. The extrusion device (not shown) attached to the mold clamping device 52 may be controlled. As described above, as the function (3), the motor torque of the drive source 59 is determined by comparing with the threshold value, and the shaping operation is performed.

  After completion of the shaping operation, the control device 19 determines the number of heating operations or shaping operations of the thermoplastic prepreg 100 (step ST15). Specifically, it is determined whether the heating operation of the thermoplastic prepreg 100 and the shaping operation of the thermoplastic prepreg 100 reach a specified number of times. When the heating operation of the thermoplastic prepreg 100 and the shaping operation of the thermoplastic prepreg 100 do not reach the specified number of times (NO in step ST15), the control device 19 controls the transport device 12, The thermoplastic prepreg 100 in the middle of shaping is taken out from the mold 51 (step ST16). Next, the control apparatus 19 conveys the thermoplastic prepreg 100 in the middle of shaping to the heating apparatus 13 (step ST17). Thereafter, these steps are repeated until the heating operation of the thermoplastic prepreg 100 reaches the number of times of shaping stored in the storage unit 82.

  When the heating operation of the thermoplastic prepreg 100 reaches the number of shaping times stored in the storage unit 82 (YES in step ST15), the control device 19 controls the injection device 15 and puts it in the mold 51. Injection molding is performed by injecting a resin material. Next, the control device 19 cools the molded article 101 subjected to injection molding, that is, the shaped thermoplastic prepreg 100 and the injected resin material (step ST18). When injection molding is not performed, the shaped thermoplastic prepreg 100 is cooled. Here, for example, the cooling of the molded article 101 is performed by natural cooling.

  Next, the control device 19 drives the mold clamping device 52 to open the mold 51 and controls an unillustrated extrusion device to push out the molded product 101 from the mold 51 (moving mold 54 or fixed mold 53). At the same time, the conveying device 12 is controlled to convey the molded product 101 from the mold 51 to the second storage unit 16 (step ST19). Further, the control device 19 measures the resin material in the injection device 15 in order to manufacture the molded product next. Thereafter, the above-described operations are repeated to sequentially manufacture molded products.

  According to the molded product manufacturing apparatus 1 configured as described above, when the thermoplastic prepreg 100 is shaped into a predetermined shape, the heating operation and the shaping operation are performed a plurality of times. Further, according to the molded product manufacturing apparatus 1, by detecting the motor torque of the drive source 59 and comparing it with the first threshold value stored in the storage unit 92, the mold clamping force by the mold clamping device 52 in the shaping operation, etc. The load applied to the mold 51 can be monitored.

  That is, the control device 19 determines that the thermoplastic prepreg 100 is solidified or solidified when the motor torque of the drive source 59 exceeds the threshold value in the shaping operation performed a plurality of times. Thus, the control device 19 can monitor the solidified state or the shapeable state of the thermoplastic prepreg 100 during the shaping operation, prevent excessive shaping of the thermoplastic prepreg 100, and have a complicated shape. However, the thermoplastic prepreg 100 can be shaped.

  Further, by monitoring the solidified state of the thermoplastic prepreg 100 from a load such as a motor torque, the thermoplastic prepreg 100 is prevented from being damaged due to the mold 51 being clamped in a state where the thermoplastic prepreg 100 is solidified. It becomes possible to do. Thereby, according to the molded product manufacturing apparatus 1, the yield of the molded product 101 to be manufactured can be improved. Further, according to the molded product manufacturing apparatus 1, it is possible to prevent the mold 51 from being damaged.

  As described above, according to the molded product manufacturing apparatus 1 and the molded product manufacturing method according to the first embodiment of the present invention, the thermoplastic prepreg (sheet member) 100 can be shaped into a complicated shape, and The solidified state of the heated thermoplastic prepreg 100 can be monitored.

  In addition, this invention is not limited to the said embodiment. In the above-described example, the configuration in which the threshold value is the motor torque has been described. However, the threshold value is not limited thereto, and may be a mold clamping force, a load, or the like.

  In the above-described example, only the configuration in which the mold clamping device 52 performs mold clamping when performing the shaping operation has been described. However, the present invention is not limited to this. For example, mold clamping by the mold clamping device 52 is performed by the mold 51. The structure which repeats a movement and stop of this may be sufficient.

  Further, for example, in the above-described example, the molded product manufacturing apparatus 1 includes the injection device 15 and describes a configuration in which the molded product is molded by shaping and injection molding of the thermoplastic prepreg 100 by the mold device 14 and the injection device 15. However, it is not limited to this. For example, the molded product manufacturing apparatus 1 does not include the injection device 15 but includes a mold clamping device 52 (for example, a press (press molding and molding apparatus)) and a mold 51, and a sheet member (thermoplastic prepreg). ) A configuration in which a molded product is molded only with 100 shapings may be used. In this case, the sheet member 100 is used not as an insert member but as a molding material.

  In the above-described example, the conveyance device 12 has been described only with the configuration in which the peripheral edge of the sheet member 100 is held by the two chucks 32, but is not limited thereto. For example, the chuck 32 may be configured to be provided at two locations in the vertical direction, or may be configured to be provided at three or more locations on the upper edge of the sheet member 100. Further, the chuck 32 may be configured to suck and hold the sheet member 100 with a negative pressure.

  In the above-described embodiment, the configuration including the cooling device 34 that cools the chuck 32 has been described. However, the configuration is not limited thereto. For example, the cooling device 34 may be configured to further cool the opening / closing means 33. Moreover, the structure which does not have the cooling device 34 may be sufficient. In addition, various modifications can be made without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Molded article manufacturing apparatus, 2 ... Laying range, 3 ... Base, 11 ... 1st storage part, 12 ... Conveyance apparatus, 13 ... Heating apparatus, 14 ... Mold apparatus, 15 ... Injection apparatus (molding apparatus), 16 ... 2nd storage part, 19 ... control device, 21 ... chuck device, 22 ... transport mechanism, 31 ... support part, 32 ... chuck, 32a ... claw part, 33 ... opening / closing means, 34 ... cooling device, 41 ... heating part, 41a ... heating surface, 51 ... mold, 52 ... mold clamping device (mold opening / closing device, opening / closing device, molding device), 53 ... fixed mold, 53a ... cavity, 54 ... moving mold, 54a ... cavity, 56 ... fixed platen, 57 ... Moving plate, 58... Toggle mechanism (opening / closing mechanism), 59... Driving source (driving unit), 61. Housing, 62... Cylinder, 62 a. Drive device, 67 ... Cylinder heating device 71 ... rail, 72 ... guide, 74 ... first driving unit, 75 ... second driving unit, 76 ... third driving apparatus, 100 ... seat member (thermoplastic prepreg), 101 ... moldings, S ... signal line.

Claims (6)

A conveying device for conveying the sheet member;
A heating device for heating the sheet member conveyed by the conveyance device;
A mold opening and closing device for shaping the sheet member;
With
The mold opening and closing device shapes the sheet member a plurality of times. Furthermore, a control device is provided,
The molded product manufacturing apparatus according to claim 1, wherein the control device causes the mold opening / closing device to shape the sheet member a plurality of times.   When the control device is configured to shape the sheet member a plurality of times with respect to the mold opening and closing device, the control device once shapes the sheet member heated by the mold opening and closing device, and then again by the heating device. The molded product manufacturing apparatus according to claim 2, wherein the sheet member is heated and the sheet member is shaped again by the mold opening and closing device.   When the mold opening / closing device is shaped a plurality of times with respect to the sheet member, the control device shapes the sheet member with the mold opening / closing device, and the mold opening / closing is resumed from when the shaping operation is stopped. The molded product manufacturing apparatus according to claim 3, wherein the sheet member is shaped by an apparatus. The sheet member is conveyed by a conveying device to a heating device that heats the sheet member and heated,
By the conveying device, the sheet member heated by the heating device is conveyed and arranged in a mold,
Forming the sheet member a plurality of times by the mold,
A method for producing a molded product characterized by the above.   A molded product produced by the production method according to claim 5.