JP5529902B2 - Molding system and hoop material insert molding method - Google Patents

Description

  The present invention relates to a molding system that performs insert molding using a hoop material.

  2. Description of the Related Art Conventionally, a molding system is known in which a hoop material is intermittently conveyed to a mold of an injection molding machine every predetermined range, and the conveyed hoop material is insert-molded (see, for example, Patent Document 1).

  FIG. 9 is an explanatory diagram schematically showing the operation of such a molding system in time series. As shown in FIG. 9A, the hoop material 1 is conveyed from the upstream side to the downstream side of the mold (the lower mold only) 2. At this time, the hoop material 1 displaces the hoop material 1 by displacing the hoop conveying device 3 disposed on the upstream side or the downstream side from the upstream side to the downstream side with reference to the mold 2 (see the arrow). The hoop material 1 conveyed intermittently for each predetermined range is insert-molded with a mold 2.

  At this time, as shown in FIG. 9B, the hoop material 1 may sag in the conveyance process before being closed by the mold 2.

  Therefore, as shown in FIG. 9C, the hoop material supply / conveying device 3 is opposite to the hoop material supply / conveyor 3 with the mold 2 interposed therebetween, and in FIG. It is necessary to tension the hoop material 1 by arranging a tension device 4 composed of a pair of roller bodies that nip rotate in the direction of pulling 1.

Japanese Patent Publication No. 2007-023732

  However, in the tension device 4 composed of a pair of roller bodies as in the above-described forming system, the rotational force of the roller bodies is constantly applied to the hoop material 1, so that the thin-walled hoop material 1 is cut or deformed due to grounding or the like. There has been a problem that is likely to occur.

  Further, since the tension device 4 is arranged on the upstream side of the mold 2 before the insert molding, the circuit or the like formed on the hoop material 1 is easily caught by the contact of the roller body. There is a problem that defects are likely to occur.

  Further, in the configuration in which the hoop material is gripped and conveyed synchronously between the upstream side and the downstream side of the mold as in Patent Document 1, there is a problem that it is difficult to tension the hoop material 1.

  Then, an object of this invention is to provide the shaping | molding system which can reduce the load added in order to tension a hoop material, and can suppress the damage to the surface of a hoop material.

  In order to solve the above-described problems, a molding system according to the present invention includes a mold that is driven to open and close between a mold open position and a mold closed position and is supplied with a molten resin material when the mold is in a closed state, and the mold A hoop material supply and conveyance device that supplies and conveys the hoop material from the upstream side to the downstream side, and the hoop material supply and conveyance device is provided on either the upstream side or the downstream side of the mold. A hoop material conveying device for conveying the hoop material by a predetermined distance by displacing the hoop material from the upstream side to the downstream side in a state where the hoop material is grasped from the front and back sides, and provided on the other upstream side or downstream side of the mold. A hoop material holding device that is conveyed by a predetermined range by the hoop material conveyance device and grips the hoop material from the front and back, and provided in at least one of the hoop material conveyance device and the hoop material holding device. Said Characterized in that it and a tensioning device for hoop material displaces independently the one of the device in the direction of tension which is located between the-loop material conveying device and the hoop material holding device.

  The molding system of the present invention is the molding system according to claim 1, wherein the hoop material conveying device is provided on the downstream side of the mold, and the hoop material holding device is provided on the upstream side of the mold. The tension device displaces the hoop material holding device toward the upstream side so that the hoop material positioned between the hoop material conveying device and the hoop material holding device is tensioned.

  Furthermore, the molding system of the present invention is the molding system according to claim 1 or 2, wherein the hoop material conveying device is provided on the downstream side of the mold, and the hoop material is gripped from the front and back sides from the upstream side. The hoop material is conveyed by a predetermined distance by displacing to the downstream side, and the hoop material holding device is provided on the upstream side of the mold and grips the hoop material from the front and back. By displacing from the upstream side to the downstream side in synchronization, the hoop material is conveyed by a predetermined distance, and the tension device tensions the hoop material located between the hoop material conveyance device and the hoop material holding device. Thus, the hoop material holding device is displaced toward the upstream side independently of the hoop material conveying device.

  According to each molding system of the present invention, the load applied to tension the hoop material can be reduced, and damage to the surface of the hoop material can be suppressed.

  Furthermore, the molding system of the present invention is the molding system according to any one of claims 1 to 3, wherein the hoop material conveying device and the hoop material holding device are arranged via a linear shaft member. It is linked and linked.

  According to the molding system of the present invention, the hoop material can be supplied and conveyed while maintaining a tensioned state between the upstream side and the downstream side of the mold, and the tensioned state can be maintained even when sagging occurs. It can be secured easily.

  Moreover, the hoop material insert molding method of the present invention grips the hoop material at the initial position by gripping means arranged on the upstream side and the downstream side of the mold in a state where the mold is opened after the insert molding with respect to the hoop material of the previous stage. A tension step for tensing the hoop material by displacing one of the gripping means in a direction away from the mold, and displacing each of the gripping means downstream while maintaining the tension state. A conveying step for conveying to the downstream side, a molding step in which the mold is closed and a molten resin material is supplied at a predetermined position of the tensioned hoop material, and a gripping state of the hoop material by the gripping means And a return step for returning the gripping means to the initial position on the upstream side.

  According to the hoop material insert molding method of the present invention, the load applied for tensioning the hoop material can be reduced, and damage to the surface of the hoop material can be suppressed.

  The molding system of the present invention can reduce the load applied for tensioning the hoop material, and can suppress damage to the surface of the hoop material.

1 is a front view of a molding system according to an embodiment of the present invention. It is a top view of the forming system concerning one embodiment of the present invention. It is an enlarged front view of the upstream conveyance part applied to the shaping | molding system which concerns on one Embodiment of this invention. It is explanatory drawing of the outline of the upstream conveyance part applied to the shaping | molding system which concerns on one Embodiment of this invention. It is an enlarged plan view of the upstream conveyance part applied to the shaping | molding system which concerns on one Embodiment of this invention. It is an enlarged front view of the downstream conveyance part applied to the shaping | molding system which concerns on one Embodiment of this invention. It is a flowchart which shows the effect | action of the shaping | molding system which concerns on one Embodiment of this invention in time series. The operation of the molding system according to an embodiment of the present invention is shown in time series, (A) is an explanatory diagram of the main part before feeding the hoop material, (B) is an explanatory diagram of the main part after feeding the hoop material, (C ) Is an explanatory diagram of the main part in the tension device operating state, and (D) is an explanatory diagram of the main part of the molded shape. The operation of the conventional molding system is shown in time series, (A) is an explanatory diagram of the main part before feeding the hoop material, (B) is an explanatory diagram of the main part after feeding the hoop material, (C) is the tension device operating state It is explanatory drawing of the principal part.

  Next, a molding system according to an embodiment of the present invention will be described with reference to the drawings. The following embodiment is a preferable specific example in the molding system of the present invention, and may have various technically preferable limitations. However, the technical scope of the present invention particularly limits the present invention. Unless otherwise stated, the present invention is not limited to these embodiments. In addition, the constituent elements in the embodiments shown below can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the embodiment described below does not limit the contents of the invention described in the claims.

  1 is a front view of a molding system according to one embodiment of the present invention, FIG. 2 is a plan view of the molding system according to one embodiment of the present invention, and FIG. 3 is applied to the molding system according to one embodiment of the present invention. 4 is an enlarged front view of the upstream conveyance unit, FIG. 4 is a schematic explanatory view of the upstream conveyance unit applied to the molding system according to one embodiment of the present invention, and FIG. 5 is a molding system according to one embodiment of the present invention. FIG. 6 is an enlarged front view of a downstream transport unit applied to a molding system according to an embodiment of the present invention, and FIG. 7 is an embodiment of the present invention. FIG. 8 shows the operation of the molding system according to an embodiment of the present invention in time series, FIG. 8 (A) is an explanatory view of the main part before feeding the hoop material, FIG. FIG. 8B is an explanatory view of the main part after feeding the hoop material, and FIG. Illustration of a main part of the apparatus operating state, FIG. 8 (D) is an explanatory view of a shaped-shaped main part.

  1 and 2, a molding system 10 is a resin injection molding machine that insert-molds a hoop material with a mold 20 while intermittently transporting a roll-shaped hoop material (not shown). Part of it. In addition, the molding system 10 includes a base 30 that straddles the upstream side (the left side in the figure by reference) and the downstream side of the mold 20, and the lower mold 21 of the mold 20 is fixed near the center thereof. In the present embodiment, the lower mold 21 is a fixed mold that does not move up and down.

  Above the base 30, an upstream conveyance unit 40 for the hoop material is disposed on the upstream side of the mold 20, and a downstream conveyance unit 50 for the hoop material is disposed on the downstream side of the mold 20. The upstream conveyance unit 40 and the downstream conveyance unit 50 constitute a hoop material supply conveyance device 11 according to the present invention.

  As shown in FIG. 3, the upstream transport unit 40 includes a pair of linear guide rails 41 provided on the upstream base 31 supported by the base 30 and extending from the upstream side toward the downstream side, and the linear guide rails 41, a hoop material holding device 42 that is displaced between the upstream side and the downstream side by the 41, an upstream guide portion 43 that is disposed upstream of the hoop material holding device 42 and supported by the upstream base 31, and a hoop. A downstream guide portion 44 disposed downstream of the material holding device 42 and supported by the upstream base 31. The upstream guide portion 43 and the downstream guide portion 44 have a function of guiding the hoop material drawn from the original fabric. Further, the upstream guide portion 43 has an upstream end bent in a downward R shape according to the supply direction of the hoop material, and functions as a supply guide.

  The upstream base 31 includes four cylinder members 32 having a lower end side supported by the base 30 and having a vertical guide function, and a height position of the upstream base 31 supported by the base 30 at the lower end. It is supported by a fixed shaft 33 to be fixed and a position holding cylinder 34 which is installed on the base 30 and holds the lift position of the upstream base 31.

  The cylinder member 32 includes an outer cylinder 32 a whose lower end is fixed to the upper surface of the base 30, and an inner shaft 32 b whose upper end is fixed to the bottom surface of the upstream base 31 and whose lower end penetrates the outer cylinder 32 a and the base 30. And.

  The fixed shaft 33 includes a screw shaft 33a having an upper end fixed to the bottom surface of the upstream base 31 and a lower end penetrating the base 30, and positioning nuts 33b and 33c screwed to the screw shaft 33a. . In the present embodiment, the fixed shafts 33 are arranged at four locations, but may be six or eight locations depending on the size of the upstream base 31 or the like.

  As shown in FIG. 4, the hoop material holding device 42 includes a linear base 45 that is displaced along the linear guide rail 41, and a guide rail 46 that is provided on the linear base 45 and extends from the upstream side toward the downstream side. A slide base 47 that is displaced along the guide rail 46 and a hoop material holding device main body 48 disposed on the upper surface of the slide base 47 are provided. The linear base 45 is provided with a tension device 60 that displaces the slide base 47 along the guide rail 46. Furthermore, one end of a linear shaft member 49 is fixed to the linear base 45.

  On the upper surface of the slide base 47, a pair of guide walls 47a for guiding both edges of the hoop material and a back surface side pad member 47b for supporting the back surface of the hoop material are provided.

  The hoop material holding device main body 48 is provided on a fluid (liquid / gas) supply nozzle 48a, a fluid discharge nozzle 48b, a lifting / lowering portion 48c that moves up and down by the supply / discharge of the fluid, and a bottom surface of the lifting / lowering portion 48c. A surface-side pad member 48d that contacts the surface side of the hoop material.

  As shown in FIG. 5, the tension device 60 includes a cylinder body 63 including a fluid (liquid / gas) supply nozzle 61 and a discharge nozzle 62, a cylinder shaft 64 that expands and contracts due to fluid supply / discharge, and a cylinder shaft 64. And a connection plate 65 having one end fixed to the tip and the other end fixed to the slide base 47.

  Thereby, the tension device 60 can displace the slide base 47 along the guide rail 46 independently of the linear base 45 by extending and contracting the cylinder shaft 64.

  As shown in FIG. 6, the downstream transport unit 50 includes a pair of linear guide rails 51 provided on a downstream base 35 supported by the base 30 and extending from the upstream side toward the downstream side, and the linear guide rails 51, a hoop material conveying device 52 that is displaced between the upstream side and the downstream side by 51, a downstream guide portion 53 that is disposed downstream of the hoop material conveying device 52 and supported by the downstream base 35, and a hoop An upstream guide portion 54 disposed upstream of the material conveying device 52 and supported by the downstream base 35. The downstream guide portion 53 and the upstream guide portion 54 have a function of guiding the hoop material after insert molding from the mold 20. Further, the downstream guide portion 53 has a downstream end bent in a downward R shape according to the discharge direction of the hoop material, and functions as a discharge guide.

  The downstream base 35 includes four cylinder members 36 that are supported at the lower end side by the base 30 and provided with a vertical guide function, and the height position of the downstream base 35 that is supported at the lower end by the base 30. It is supported by a fixed shaft 37 to be fixed and a position holding cylinder 38 which is installed on the base 30 and holds the lift position of the downstream side base 35.

  The upstream side base 31 and the downstream side base 35 include a protruding plate 23 provided in the lower mold 21, a connecting member 24 connected to both ends of the protruding plate 23, and a bearing 25 that contacts the upper surface of the connecting member 24. In addition, the bearing 25 is provided at the end via the bracket 26, and the lift device 28 is configured to be lifted by a lifting / lowering link cam 27 that moves up and down in conjunction with the protruding operation of the protruding plate 23. In the present embodiment, the upstream base 31 and the downstream base 35 are brought into contact with the lift link cam 27 by bringing the upstream base 31 and the rod portions 31 a having upper ends fixed to the downstream base 35 into contact with each other. It can lift synchronously and generation | occurrence | production of the slack of the hoop material resulting from the height shift of each base 31 and 35 can be suppressed.

  The cylinder member 36 includes an outer cylinder 36 a whose lower end is fixed to the upper surface of the base 30, and an inner shaft 36 b whose upper end is fixed to the bottom surface of the downstream base 35 and whose lower end penetrates the outer cylinder 36 a and the base 30. And.

  The fixed shaft 37 includes a screw shaft 37a having an upper end fixed to the bottom surface of the downstream base 35 and a lower end penetrating the base 30, and positioning nuts 37b and 37c screwed to the screw shaft 37a. . In the present embodiment, the fixed shafts 37 are arranged at four locations in the direction orthogonal to the upstream side, the downstream side, and the hoop material conveyance direction (the depth direction in FIG. 1) so as to sandwich the drive device 38. Six or eight locations may be used depending on the size of the downstream base 35 and the like.

  The hoop material transport device 52 includes a linear base 55 that is displaced along the linear guide rail 51, a hoop material transport device main body 56 that is disposed on the upper surface of the linear base 55, and an operating device 57 that operates the linear base 55. (See FIG. 2). Further, the other end of the linear shaft member 49 is fixed to the linear base 55.

  On the upper surface of the slide base 55, a pair of guide walls 55a for guiding both edges of the hoop material and a back surface side pad member 55b for supporting the back surface of the hoop material are provided.

  The hoop material conveyance device main body 56 is provided on a fluid (liquid / gas) supply nozzle 56a, a fluid discharge nozzle 56b, a lift unit 56c that moves up and down by the supply and discharge of the fluid, and a bottom surface of the lift unit 56c. A surface-side pad member 56d that contacts the surface side of the hoop material.

  Thereby, when the differential device 57 is operated, the linear base 55 is displaced along the linear guide rail 51. Further, since the linear base 55 is connected to the upstream linear base 45 by a linear shaft member 49, when the downstream linear base 55 is displaced (driven), the upstream base 55 is displaced. The linear base 45 is displaced in conjunction (followed).

  On the other hand, a hoop material fixing device 70 that holds the front and back of the hoop material is disposed above the guide base 58 supported by the downstream base 35 in the upstream guide portion 54. The hoop material fixing device 70 is provided on a fluid (liquid / gas) supply nozzle 71, a fluid discharge nozzle 72, a lifting / lowering unit 73 that moves up / down by the supply / discharge of the fluid, and a bottom surface of the lifting / lowering unit 73. A surface-side pad member 74 that contacts the surface side of the hoop material. The front surface side pad member 74 is opposed to the back surface side pad member 58 b disposed between a pair of guide walls 58 a provided on the guide base 58. Each nozzle 48a, 48b, 56a, 56b, 71, 72 is connected to a fluid control device (not shown).

  Next, the operation of the molding system 10 according to one embodiment of the present invention will be described with reference to FIGS. Note that FIG. 8 is a simplified diagram for convenience of explanation. Further, in the following description, a process from immediately after the previous injection molding to the hoop material 12 to the injection molding to the next hoop material 12 will be described as one step. The drive control shown below is controlled by a control circuit that controls the overall system control of injection molding. Further, when the linear bases 45 and 55 (the hoop material holding devices 42 and 52) are located on the upstream side, the linear bases 45 and 55 (the hoop material holding devices 42 and 52) are located on the downstream side. It is assumed that the transfer completion position. Further, the pad members 47b, 58b, 55b located on the back side of the hoop material 12 are fixed, and only the pad members 48d, 74, 56d located on the front side of the hoop material 12 approach and separate from each other. Only the approach or separation of the pad members 48d, 74, 56d located on the surface side of the material 12 will be described.

(Step S1: Grasping step)
In step S1, as shown in FIG. 8A, the linear bases 45 and 55 are in the initial position immediately after the injection molding in which the mold 20 is closed. Further, the hoop material 12 is gripped on the front and back by the approach of the pad members 48d and 56d.

(Step S2: Mold opening step)
In step S2, as shown in FIG. 8B, the mold 20 is opened while the pad members 48d and 56d are close to each other, and the pad material 12 after the injection molding is released and taken out. .

(Step S3: Tension step)
In step S3, as shown in FIG. 8 (C), before the mold 20 is transferred to the hoop material 12 in the mold open state, the tension device 60 is set so that there is no slack (see FIG. 8 (B)). Is driven to displace the slide base 47 toward the upstream side, and the hoop material 12 is in a tension state. Thereby, the hoop material 12 can be conveyed while suppressing the occurrence of conveyance failure such as catching while the hoop material 12 is being conveyed.

(Step S4: Transport step)
In step S4, when the operating device 57 is operated to displace the downstream slide base 55 from the upstream side to the downstream side, the upstream slide base 45 connected to the shaft member 49 is moved from the upstream side to the downstream side. The hoop material 12 is conveyed from the upstream side to the downstream side.

(Step S5: Molding step)
In step S5, as shown in FIG. 8D, after the upper mold 22 is lowered to the bottom dead center and the mold is closed, the mold is clamped and the molten resin material is supplied to the mold 20, and the hoop material 12 is removed. Insert molding. In addition, when the mold closing of the mold 20 is completed, the driving of the tension device 60 is stopped, the tensioned state is released, the pad members 48d and 56d are separated, and the pad member 74 approaches.

(Step S6: Return step)
In step S6, at substantially the same time as the insert molding, the operating device 57 is operated to return the hoop material conveying device 52 from the downstream side to the upstream initial position, and then the pad member 74 is separated.

  By the way, in the said embodiment, although the linear bases 45 and 55 were made into the linear type drive, the drive system is not specifically limited. Further, the tension device 60 may be connected with, for example, a regulating valve for reducing the pressure of the high-pressure gas or liquid and keeping it at a constant pressure. Furthermore, the lift device 28 is only required to have a function of lifting the upstream base 31 and the downstream base 35 synchronously. For example, an ejector plate of a molding machine (not shown) is formed in a horizontally long shape, and the ejector plate The upstream side base 31 and the downstream side base 35 may be directly lifted by the ejector pins connected to.

  Further, in steps S1 and S2, the linear bases 45 and 55 have been described in the state where they have already returned to the initial positions in order to shorten the molding cycle. May be. That is, when the linear bases 45 and 55 are at the transfer completion position when step S2 is completed, the upstream pad member 48b is close to the mold 20 and the downstream pad member 56b is the mold 20. It is away from. For this reason, if the hoop material 12 is gripped by bringing the pad member 74 disposed close to the downstream side of the mold 20 close, the hoop material 12 is gripped at positions close to the upstream side and downstream side of the mold 20. Therefore, it is possible to further suppress the occurrence of sagging of the hoop material 12 and peeling of the molded resin at the time of releasing and taking out. Accordingly, when the linear bases 45 and 55 are returned to the initial positions when the mold is opened after injection molding, a hoop material fixing device similar to the hoop material fixing device 70 is disposed above the downstream guide portion 44. You may do it.

  Thus, in the molding system 10 of the present invention, the mold 20 that is driven to open and close between the mold open position and the mold closed position and is supplied with the molten resin material when in the mold closed state, A hoop material supply and conveyance device 11 that supplies and conveys the hoop material 12 from the upstream side of the mold 20 toward the downstream side. The hoop material supply and conveyance device 11 is provided on the downstream side of the mold 20. A hoop material conveying device 52 that conveys the hoop material 12 by a predetermined distance by displacing the hoop material 12 from the upstream side to the downstream side while gripping the hoop material 12 from the front and back, and a hoop provided upstream from the mold 20. A hoop material holding device 42 that conveys the hoop material 12 by a predetermined distance by displacing the material 12 from the upstream side to the downstream side in synchronization with the hoop material conveyance device 52 in a state where the material 12 is gripped from the front and back, and a hoop material conveyance device 52 and Fu A tension device 60 that displaces the hoop material holding device 42 toward the upstream side independently of the hoop material conveying device 52 so that the hoop material 12 positioned between the material holding device 42 and the material holding device 42 is tensioned. .

  Therefore, the load applied for tensioning the hoop material 12 can be adjusted by the supply amount of the fluid, and unlike the endless load such as roller rotation, the shaft cylinder 64 having a limit in the length in the extending direction is used. In combination with this, it is possible to reduce the load (load) and to suppress the deformation of the hoop material 12 made of easily deformable material or shape and the damage to the surface of the hoop material 12.

  In addition, the hoop material supply / conveyance device 11 is provided between the mold 20 and the hoop material holding device 42 for at least the hoop material holding device 42 for the next process before the mold opening after the molten resin material is supplied. Is provided with a hoop material fixing device 70 for gripping the hoop material 12 from the front and back during a period until the hoop material 12 is gripped again after returning to the initial position.

  As a result, when the hoop material 12 is conveyed for the next process, the hoop material 12 is fixed by the hoop material fixing device 70, so that the hoop material 12 is unexpectedly conveyed so as to be shifted to the downstream side or the upstream side. Can be suppressed.

  Further, the hoop material conveying device 52 and the hoop material holding device 42 are interlocked and connected via a linear shaft member 49.

  Therefore, the hoop material 12 can be supplied and conveyed while maintaining a tension state between the upstream side and the downstream side of the mold 20, and even if the hoop material 12 is slack, The tension state can be easily secured by the operation. The upstream end of the shaft member 49 is connected to the linear base 45 via a stay 49a, and the length of the shaft member 49 can be adjusted at the connecting portion between the shaft member 49 and the stay 49a. For this reason, coupled with the fact that the shaft portion 49 is straight and not bent, there is no problem that the bent portion becomes sideways after the adjustment, and that the fine adjustment cannot be performed.

DESCRIPTION OF SYMBOLS 10 ... Molding system 11 ... Hoop material supply conveyance apparatus 12 ... Hoop material 20 ... Die 21 ... Lower mold 22 ... Upper mold 23 ... Projection plate 24 ... Connecting member 25 ... Bearing 26 ... Bracket 27 ... Lifting link cam 28 ... Lift device DESCRIPTION OF SYMBOLS 30 ... Base 31 ... Upstream side base 31a ... Rod part 32 ... Cylinder member 32a ... Outer cylinder 32b ... Inner shaft 33 ... Fixed shaft 33a ... Screw shaft 33b ... Positioning nut 33c ... Positioning nut 34 ... Position holding cylinder 35 ... downstream side base 35a ... rod part 36 ... cylinder member 36a ... outer cylinder 36b ... inner shaft 37 ... fixed shaft 37a ... screw shaft 37b ... positioning nut 37c ... positioning nut 38 ... position holding cylinder 40 ... upstream side Conveying section 41 ... Linear guide rail 42 ... Hoop material holding device 43 ... Flow side guide part 44 ... Downstream side guide part 45 ... Linear base 46 ... Guide rail 47 ... Slide base 47a ... Guide wall 47b ... Back side pad member 48 ... Hoop material holding device main body 48a ... Supply nozzle 48b ... Discharge nozzle 48c ... Lifting part 48d ... Surface side pad member 49 ... Shaft member 49a ... Stay 50 ... Downstream conveying part 51 ... Linear guide rail 52 ... Hoop material conveying device 53 ... Downstream side guiding part 54 ... Upstream side guiding part 55 ... Linear base 55a ... Guide wall 55b ... Back side pad member 56 ... Hoop material transfer device body 56a ... Supply nozzle 56b ... Discharge nozzle 56c ... Elevating part 56d ... Front side pad member 57 ... Actuator 58 ... Guide base 58a ... Guide wall 58b ... Back side pad member 60 ... tension device 61 ... supply nozzle 62 ... discharge nozzle 63 Cylinder body 64 ... cylinder shaft 65 ... coupling plate 70 ... hoop locking device 71 ... supply nozzle 72 ... discharge nozzle 73 ... elevation unit 74 ... surface-side pad member

Claims (5)

A mold that is driven to open and close between a mold open position and a mold closed position and is supplied with a molten resin material when in a mold closed state;
A hoop material supply and conveyance device for supplying and conveying the hoop material from the upstream side to the downstream side of the mold;
With
The hoop material supply / conveyance device includes:
A hoop material conveying device that is provided on one of the upstream side or the downstream side of the mold and conveys the hoop material by a predetermined distance by displacing the hoop material from the upstream side to the downstream side in a state where the hoop material is gripped from the front and back sides. When,
A hoop material holding device that is provided on the other upstream or downstream side of the mold and is conveyed by a predetermined range by the hoop material conveyance device and grips the hoop material from the front and back;
The hoop material provided in at least one of the hoop material conveying device and the hoop material holding device, and one of the hoop materials positioned between the hoop material conveying device and the hoop material holding device in a tensioning direction. A tension device for independently displacing the device;
A molding system comprising: The molding system according to claim 1,
The hoop material conveying device is provided on the downstream side of the mold,
The hoop material holding device is provided on the upstream side of the mold,
The molding system characterized in that the tension device displaces the hoop material holding device toward the upstream side so that the hoop material positioned between the hoop material conveying device and the hoop material holding device is tensioned. The molding system according to claim 1 or 2,
The hoop material conveying device is provided on the downstream side of the mold and conveys the hoop material by a predetermined distance by displacing the hoop material from the upstream side to the downstream side while gripping the hoop material from the front and back sides.
The hoop material holding device is provided on the upstream side of the mold and is displaced from the upstream side to the downstream side in synchronism with the hoop material conveying device in a state where the hoop material is gripped from the front and back surfaces. Transport only the distance,
The tension device displaces the hoop material holding device toward the upstream side independently of the hoop material conveyance device so that the hoop material positioned between the hoop material conveyance device and the hoop material holding device is tensioned. A molding system characterized by The molding system according to any one of claims 1 to 3,
The forming system, wherein the hoop material conveying device and the hoop material holding device are interlocked and connected via a linear shaft member. One of the gripping means is separated from the mold while the hoop material is gripped at the initial position by gripping means disposed on the upstream side and the downstream side of the mold in a state where the mold is opened after the insert molding with respect to the hoop material in the previous stage. A tensioning step to displace the hoop material by displacing it in the direction of
A transport step for transporting the hoop material to the downstream side by displacing each gripping means to the downstream side while maintaining the tension state;
A molding step of insert molding by closing the mold at a predetermined position of the hoop material in a tension state and supplying a molten resin material;
A return step for releasing the gripping state of the hoop material by the gripping means and returning the gripping means to the upstream initial position;
A hoop material insert molding method comprising:

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