Resin molding device and method for manufacturing resin molded article

Abstract

The invention provides a resin molding device which can realize lifting of a movable platen with a simple structure. The resin molding apparatus includes: a main body frame (20) having a holder (25); a movable platen (31) supported by the main body frame (20); a first ball screw (11) having a first gear (G1); a second ball screw (12) having a second gear (G2); a servo motor unit (15) having a drive member (18) connected to the first gear (G1) and the second gear (G2) and driving the first ball screw (11) and the second ball screw (12) to raise and lower the movable platen (31); a holding member (40) that is supported by the holder (25), holds the servomotor unit (15), and changes the positional relationship of the drive member (18) with respect to the first gear (G1) and the second gear (G2) by moving relative to the holder (25); and a position adjustment mechanism (45A) that adjusts the relative position of the holding member (40) with respect to the holder (25).

Description

Technical Field

[0001] This specification relates to a resin molding apparatus and a method for manufacturing resin molded articles. Background Technology

[0002] As disclosed in Japanese Patent Application Publication No. 2014-233882 (Patent Document 1), a resin molding apparatus that uses multiple threaded shafts to raise and lower a movable platform is known. In the apparatus disclosed in Patent Document 1, a first threaded shaft and a second threaded shaft support the movable platform. The first threaded shaft is connected to a first drive motor, and the second threaded shaft is connected to a second drive motor. The first drive motor and the second drive motor are driven by a control unit, causing the movable platform to move up and down via the first threaded shaft and the second threaded shaft.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-233882 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] With the structure described above, during assembly, the first threaded shaft is aligned with the first drive motor, and the second threaded shaft is aligned with the second drive motor. During operation, to prevent excessive tilting of the movable platform or unexpected malfunctions, the first and second threaded shafts are driven in a manner that is precisely synchronized. The structure described above offers room for improvement in terms of simplification.

[0008] The purpose of this specification is to disclose a resin molding apparatus that, compared with existing apparatuses, enables the lifting and lowering of a movable platform through a simple structure, and a method for manufacturing resin molded articles by using such resin molding apparatus to resin mold objects.

[0009] Technical means to solve the problem

[0010] In a first aspect of this disclosure, a resin molding apparatus includes: a main frame having a support; a movable platform supported by the main frame; a first ball screw having a first gear and connected to the movable platform; a second ball screw having a second gear and connected to the movable platform; a servo motor unit having a drive member connected to both the first gear and the second gear, which drives the first ball screw and the second ball screw to move the movable platform up and down; a holding member supported by the support and movable relative to the support, which holds the servo motor unit, and whose relative movement relative to the support changes the positional relationship of the drive member relative to the first gear and the second gear; and a position adjustment mechanism for adjusting the relative position of the holding member relative to the support.

[0011] In a second aspect of this disclosure, a method for manufacturing a resin molding apparatus includes a step of resin molding an object to be molded using the resin molding apparatus of the first aspect of this disclosure.

[0012] The effects of the invention

[0013] This specification discloses a resin molding apparatus that can be assembled using a simple method and allows for the lifting and moving of a movable platform, as well as a method for manufacturing resin molded articles by using such resin molding apparatus to mold objects. Attached Figure Description

[0014] [ Figure 1 [] is a plan view of the resin molding apparatus 50.

[0015] [ Figure 2 [] is a front view showing the molding section 51 included in the resin molding apparatus 50.

[0016] [ Figure 3 [This is a perspective view of the mold clamping mechanism 10 and main frame 20 included in the resin molding apparatus 50, viewed from above.]

[0017] [ Figure 4 This is a perspective view of the mold clamping mechanism 10 and main frame 20 included in the resin molding apparatus 50, viewed from below.

[0018] [ Figure 5 [This is a bottom view of the mold clamping mechanism 10 and the main frame 20 included in the resin molding apparatus 50, viewed from below.]

[0019] [ Figure 6 [ ] is a perspective view showing the support 25 and holding member 40 included in the resin molding apparatus 50.

[0020] [ Figure 7[ ] is a plan view showing the support 25 and holding member 40 included in the resin molding apparatus 50.

[0021] [ Figure 8 [Illustration] is a diagram used to schematically illustrate the relationship between the tooth profile of the drive gear 17 and the roller pin 18P disposed on the drive member 18.

[0022] [ Figure 9 [1] is a cross-sectional view showing the position adjustment mechanism 45A included in the resin molding apparatus 50 adjusting the position of the holding member 40 (first state).

[0023] [ Figure 10 [This is a cross-sectional view showing the position adjustment mechanism 45A included in the resin molding apparatus 50 adjusting the position of the holding member 40 (second state).]

[0024] [ Figure 11 [This is a cross-sectional view showing the position adjustment mechanism 45A included in the resin molding apparatus 50 adjusting the position of the holding member 40 (third state).]

[0025] [ Figure 12 [4] is a cross-sectional view showing the position adjustment mechanism 45A included in the resin molding apparatus 50 adjusting the position of the holding member 40 (fourth state).

[0026] [ Figure 13 [5] is a cross-sectional view showing the position adjustment mechanism 45A included in the resin molding apparatus 50 adjusting the position of the holding member 40 (fifth state). Detailed Implementation

[0027] The embodiments are described below. In the embodiments described below, when the number, quantity, etc., are mentioned, the scope of this disclosure is not necessarily limited to the stated number, quantity, etc., unless specifically stated otherwise. Except as specifically stated otherwise, each structural element is not necessarily essential to this disclosure. The same reference numerals are assigned to the same parts and equivalent parts, and repeated descriptions are sometimes omitted.

[0028] [Resin Molding Apparatus 50]

[0029] Figure 1 This is a plan view of the resin molding apparatus 50. The resin molding apparatus 50 performs resin molding on the object to be molded. The resin molding apparatus 50 includes a supply and storage module 63, a molding module 64, and a material supply module 65 as structural elements.

[0030] (Supply and storage module 63)

[0031] The supply and storage module 63 includes: a supply section 67 for supplying the pre-sealing substrate 66 (the object to be molded); a storage section 69 for storing the sealed substrate 68 (a resin molded article); a placement section 70 for transferring the pre-sealing substrate 66 and the sealed substrate 68; and a conveying mechanism 71 for conveying the pre-sealing substrate 66 and the sealed substrate 68. Figure 1 In the middle, the conveying mechanism 71 is configured in the standby position S1.

[0032] (Forming module 64 and forming part 51)

[0033] Figure 2 This is a front view showing the molding section 51 included in the resin molding apparatus 50. In the molding module 64 ( Figure 1 A forming part 51 is provided in the ). The forming part 51 (refer to Figure 2 It has a mold closing mechanism 10, a main frame 20, a movable platform 31, an intermediate plate 32, a fixed platform 33, a lower mold 35, an upper mold 36, a sliding mechanism 38, and a linkage mechanism 39.

[0034] Figure 3 This is a perspective view of the mold closing mechanism 10 and the main frame 20 from the top side. Figure 4 and Figure 5 These are, respectively, a perspective view and a bottom view of the mold closing mechanism 10 and the main frame 20 viewed from below.

[0035] The mold clamping mechanism 10 includes a ball screw 11 (first ball screw), a ball screw 12 (second ball screw), a servo motor unit 15, a retaining member 40, and position adjustment mechanisms 45A and 45B. For details on the mold clamping mechanism 10, please refer to... Figures 3-8 As will be described later. The main frame 20 has side wall members 21 and 22 ( Figure 2 , Figure 3 ), base 23 ( Figure 3 ), base 24 ( Figure 3 ), and bracket 25.

[0036] Side wall members 21 and 22 are arranged on the sides (left and right sides) of the movable platform 31 and the intermediate plate 32, providing support for the movable platform 31 and the intermediate plate 32. Base 23 ( Figure 3 It has a roughly rectangular shape and supports the ball screws 11 and 12. The base 24 ( Figure 3 This forms the bottom part of the main frame 20.

[0037] The sliding mechanism 38 allows the intermediate plate 32 to slide vertically relative to the side wall members 21 and 22. The linkage mechanism 39 links the lifting and lowering of the intermediate plate 32 with the lifting and lowering of the movable platform 31. By linking the lifting and lowering of the intermediate plate 32 with the lifting and lowering of the movable platform 31, the linkage mechanism 39 synchronizes the mold closing and opening operations using the two lower molds 35 and the two upper molds 36.

[0038] A mold cavity 37 is provided in the lower mold 35, and a release film 78 is supplied in the mold cavity 37. Figure 1 The lower mold 35 and the upper mold 36 are closed and opened by the mold closing mechanism 10. The lower mold 35 and the upper mold 36 perform resin molding on the object to be molded in the closed state.

[0039] In the resin molding apparatus 50, two lower molds 35 and two upper molds 36 are used, but it is also possible to use only one set of lower molds 35 and upper molds 36 in the resin molding apparatus 50 (or a single-layer structure). The sliding mechanism 38 and the linkage mechanism 39 can be used as needed, such as when multiple sets of lower molds 35 and upper molds 36 are used.

[0040] (Materials Supply Module 65)

[0041] The material supply module 65 includes: a workbench 72; a supply mechanism 73 for supplying a release film 78 to the workbench 72; a receiving mechanism 74 for receiving resin material; an input mechanism 75 for inputting resin material into the receiving mechanism 74; and a conveying mechanism 76 for conveying the release film 78 and the receiving mechanism 74. Figure 1 In the middle, the workbench 72 is configured in the standby position T1, and the conveying mechanism 76 is configured in the standby position M1.

[0042] (Manufacturing method of resin molded articles)

[0043] The method for manufacturing resin molded articles using the resin molding apparatus 50 is described below. In the supply storage module 63 ( Figure 1 In the process, the pre-sealing substrate 66 is fed from the supply unit 67 to the placement unit 70, and the conveying mechanism 71 receives the pre-sealing substrate 66 from the placement unit 70. By moving the conveying mechanism 71, the pre-sealing substrate 66 is positioned at position C1 on the lower mold 35 of the forming module 64. The pre-sealing substrate 66 is then placed on the upper mold 36 by the rising of the conveying mechanism 71.

[0044] In the material supply module 65, the release film 78 is placed on the worktable 72 from the supply mechanism 73. The conveying mechanism 76 receives the release film 78 from the worktable 72 and moves it to position C1 of the lower mold 35 via position P1 of the forming module 64. The release film 78 is then supplied to the lower mold 35 by the conveying mechanism 76.

[0045] The worktable 72 moves, and a receiving mechanism 74 is placed on the worktable 72. The worktable 72 moves further, and resin material is supplied from the feeding mechanism 75 to the receiving mechanism 74 on the worktable 72. The conveying mechanism 76 receives the receiving mechanism 74 on the worktable 72. The conveying mechanism 76 moves from position P1 on the molding module 64 to position C1 on the lower mold 35. The resin material is supplied to the mold cavity 37 of the lower mold 35 by the conveying mechanism 76.

[0046] In the molding section 51, the lower mold 35 is raised by the mold closing mechanism 10, thereby closing the lower mold 35 with the upper mold 36. With the lower mold 35 and upper mold 36 closed, the pre-sealed substrate 66 (the object to be molded) is resin molded. After a predetermined time, the upper mold 36 and lower mold 35 are opened. The conveying mechanism 71 receives the sealed substrate 68 and transfers it to the placement section 70. The sealed substrate 68 is then stored in the storage section 69 from the placement section 70. The method for manufacturing a resin-molded article using the resin molding apparatus 50 is as described above.

[0047] (Mold closing mechanism 10 and main frame 20)

[0048] like Figures 3-5 As shown, the mold clamping mechanism 10 includes a ball screw 11 (first ball screw), a ball screw 12 (second ball screw), a servo motor unit 15, a holding member 40, and position adjustment mechanisms 45A and 45B. The main frame 20 includes a side wall member 21, a side wall member 22, a base 23, a base bottom 24, and a bracket 25.

[0049] The base 24 of the main frame 20 has a quadrilateral frame shape, and the base 23 is configured to extend from one side of the base 24 to the other. Details will be described later, regarding the mounting surface 23S of the base 23. Figure 3 A bracket 25 is fixed in place. The ball screws 11 and 12 extend in the direction of their extension from the base 24. Figure 2 They are arranged separately in the left-right direction within the paper. The ball screws 11 and 12 are fixed to the base 23 such that their respective central axes extend vertically (see reference). Figure 3 ).

[0050] like Figure 2 As shown, ball screws 11 and 12 are connected to the movable platform 31. The movable platform 31 rises and falls by partially displacing the ball screws 11 and 12. As the movable platform 31 rises and falls, the intermediate plate 32 of the linkage mechanism 39 also rises and falls.

[0051] The ball screw 11 has a gear G1 (first gear) at its end (here, the lower end), and the ball screw 12 has a gear G2 (second gear) at its end (here, the lower end). Gears G1 and G2 are spur gears. The main bodies of the ball screws 11 and 12 are positioned above the base 23, and gears G1 and G2 are positioned below the base 23. Figures 3-5 ).

[0052] (Support 25 and retaining member 40)

[0053] The bracket 25 of the main frame 20 supports the servo motor unit 15 via the retaining member 40. Figure 6 and Figure 7 These are a perspective view and a plan view showing the bracket 25 and the retaining member 40, respectively.

[0054] The bracket 25 has a back plate portion 26, side plate portions 27A (first side plate portion), side plate portions 27B (second side plate portion), and support plates 29A and 29B. The back plate portion 26 has a flat plate shape. The back plate portion 26 is configured to be flush with the mounting surface 23S of the base 23. Figure 3 They are spaced apart and face each other, and are parallel to the mounting surface 23S.

[0055] Side plate portion 27A is connected to one end of back plate portion 26, and side plate portion 27B is connected to the other end of back plate portion 26. Side plate portions 27A and 27B extend perpendicularly to back plate portion 26. Ends 28A of side plate portion 27A and 28B of side plate portion 27B are fixed to mounting surface 23S by fastening screws or the like.

[0056] Support plate 29A is fixed to the lower surface of side plate portion 27A, and support plate 29B is fixed to the lower surface of side plate portion 27B. Side plate portion 27A and support plate 29A form an L-shape in cross-sectional view, and side plate portion 27B and support plate 29B form an L-shape in cross-sectional view (opposite to the orientation of the L-shapes). The two L-shapes face each other, and retaining members 40 are arranged inside them.

[0057] The retaining member 40 is disposed between the mounting surface 23S of the base 23 and the back plate portion 26 of the bracket 25. The retaining member 40 is disposed between the side plate portions 27A and 27B, and is supported from below by support plates 29A and 29B. Fastening members 42 for bolts or screws are provided on the support plates 29A and 29B. Figure 3 ( ) An opening or threaded hole for fixing.

[0058] The retaining member 40 has a flat plate portion 41A, a protrusion 41B, a stepped portion 41C, a receiving portion 41H, an opening portion 41P, and end faces 41S and 41T. The flat plate portion 41A has a rectangular shape and is disposed between the side plate portions 27A and 27B of the bracket 25. Multiple opening portions 41P are arranged on both sides of the flat plate portion 41A (the portions of the flat plate portion 41A facing the support plates 29A and 29B).

[0059] A fastening member 42 is inserted through the opening 41P. By fastening the fastening member 42 to the support plates 29A and 29B, the retaining member 40 is fastened to the bracket 25, and the position of the retaining member 40 relative to the bracket 25 is fixed. Because the opening 41P has an elongated hole shape, the position of the retaining member 40 relative to the bracket 25 can be changed within the range of relative movement between the opening 41P and the fastening member 42.

[0060] The step portion 41C is disposed approximately at the center of the flat plate portion 41A, and the receiving portion 41H is configured to penetrate the step portion 41C in the thickness direction. Using the step portion 41C and the receiving portion 41H, the motor body 16 of the servo motor unit 15 is fixed to the retaining member 40 (see reference). Figure 3 ).

[0061] The servo motor unit 15 includes a motor body 16, a drive gear 17, and a drive member 18. The drive gear 17 has a spur gear shape and is mounted at the end (lower end) of the motor body 16. The drive gear 17 and the drive member 18 are arranged adjacent to each other on the same plane. Here, the drive member 18 is a roller gear that rotates via the drive gear 17. The motor body 16 of the servo motor unit 15 is positioned above the holding member 40 (flat plate portion 41A), and the drive gear 17 and drive member 18 are positioned below the holding member 40 (flat plate portion 41A). Figures 3-5 ).

[0062] In the flat plate portion 41A of the retaining member 40, the surface near the base 23 (mounting surface 23S) forms an end face 41S. In the flat plate portion 41A, the surface away from the base 23 (mounting surface 23S) forms an end face 41T. A protrusion 41B is provided protruding from the end face 41S of the flat plate portion 41A. A drive member 18 (here, a roller pinion) of the servo motor unit 15 is mounted on the protrusion 41B. By pre-providing an elongated hole for mounting the drive member 18 in the protrusion 41B, the mounting position of the drive member 18 relative to the protrusion 41B can be changed, thereby allowing adjustment of the relative positional relationship between the drive gear 17 and the drive member 18.

[0063] The retaining member 40 is supported by the bracket 25 so that it can move relative to the bracket 25 in the direction of approaching the base 23 and in the opposite direction. Figure 6 The servo motor unit 15 moves relative to the base 23 (in the direction of the arrow AR). The holding member 40 holds the servo motor unit 15. When the holding member 40 moves toward the base 23 and in the opposite direction (in the direction of the arrow AR), the servo motor unit 15 (motor body 16, drive gear 17, and drive member 18) held by the holding member 40 moves together with the holding member 40 in the same direction (in the direction of the arrow AR).

[0064] The drive member 18 (here, a roller pinion) of the servo motor unit 15 is connected to the gear G1 of the ball screw 11 and the gear G2 of the ball screw 12. The drive gear 17 of the servo motor unit 15 rotates gears G1 and G2 via the drive member 18. The servo motor unit 15 drives the ball screws 11 and 12 via the drive gear 17, the drive member 18, and gears G1 and G2, thereby causing the movable platform 31 to move up and down.

[0065] Reference Figure 8 When the drive component 18 includes a roller pinion, the drive gear 17 and gears G1 and G2 may each have a tooth profile based on a subcycloid curve. Figure 8 The relationship between the tooth profile 17R of the drive gear 17 and the roller pin 18P disposed on the drive member 18 (roller pinion) is illustrated schematically. When the drive gear 17 meshes with the drive member 18, the roller pin 18P moves along the trajectory 18R relative to the drive gear 17, which has a tooth profile based on a subcycloidal curve. As a result, each gear is always in contact with the roller pinion at 2 to 3 points, with almost no backlash, and high power transmission efficiency can be obtained.

[0066] like Figure 6 and Figure 7 As shown, during the assembly of the resin molding apparatus 50, the positional relationship of the drive member 18 (roller pinion) relative to gears G1 and G2 changes as the holding member 40 moves relative to the support 25 in the direction of arrow AR. Position adjustment mechanisms 45A and 45B are used to optimize the positional relationship of the drive member 18 relative to gears G1 and G2.

[0067] (Position adjustment mechanism 45A, position adjustment mechanism 45B)

[0068] Position adjustment mechanisms 45A and 45B adjust the relative position of the holding member 40 with respect to the bracket 25. Since position adjustment mechanisms 45A and 45B have the same structure, position adjustment mechanism 45A will be described here.

[0069] Figure 9This is a cross-sectional view showing the position adjustment mechanism 45A adjusting the position of the holding member 40 (first state). (Refer to...) Figure 8 and Figure 9 The position adjustment mechanism 45A includes an abutment member 46, an elastic member 47, and a limiting member 48. Here, the abutment member 46 includes a bolt. The abutment member 46 is mounted on the back plate portion 26 of the bracket 25.

[0070] The abutting member 46 is inserted, for example, into a through hole provided in the back plate portion 26, and can move in the direction of approaching the retaining member 40 and in the opposite direction. By abutting the end 46T of the abutting member 46 against the retaining member 40 (end face 41T of the flat plate portion 41A), the relative position of the retaining member 40 with respect to the bracket 25 can be adjusted.

[0071] Here, the elastic member 47 is disposed between the end 46T of the abutment member 46 and the back plate portion 26 of the bracket 25. The elastic member 47 moves toward the abutment member 46 towards the retaining member 40 in a direction that... Figure 9 A force is applied to the abutment member 46 (from right to left on the paper). A limiting member 48, including a nut, is disposed on the opposite side of the elastic member 47 relative to the back plate portion 26 of the bracket 25. The limiting member 48 restricts the amount of movement of the abutment member 46, which moves due to the applied force, in the approach direction.

[0072] Figures 10-13 These are cross-sectional views showing the position adjustment mechanism 45A adjusting the position of the holding member 40 (second state to fifth state).

[0073] When adjusting the relative position of the retaining member 40 with respect to the bracket 25, the abutting member 46 is first moved in the direction of being pulled out from the back plate portion 26. Figure 9 and Figure 10 At this time, the limiting member 48 installed on the abutting member 46 also moves in the same direction, and the elastic member 47 is compressed.

[0074] Next, the limiting member 48 (nut) is rotated so that the limiting member 48 abuts against the back plate portion 26. Figure 11 Thus, the abutment member 46 remains in the state of being pulled out of the back plate portion 26. Next, the restraining member 48 is rotated in the opposite direction to the previous direction ( Figure 12 and Figure 13 Therefore, through the elastic restoring force of the elastic member 47, the abutment member 46 moves towards the retaining member 40. Figure 13 The position of the end 46T of the abutment member 46 determines the relative position of the retaining member 40 with respect to the bracket 25.

[0075] After the relative position is adjusted, tighten the fastening component 42 ( Figure 6 The retaining member 40 is fastened to the support plate 29A and support plate 29B. The retaining member 40 is fastened to the bracket 25 and the position of the retaining member 40 relative to the bracket 25 is fixed, thereby optimizing the positional relationship of the driving member 18 relative to gear G1 and gear G2, optimizing the contact condition (preload) of the driving member 18 relative to gear G1 and gear G2, and reducing or preventing the generation of tooth backlash.

[0076] Regarding the assembly sequence, for example, the bracket 25 is fixed to the base 23. The servo motor unit 15 can be integrated by mounting the retaining member 40. The integrated retaining member 40 and the servo motor unit 15 are mounted on the bracket 25, and the position is adjusted by the position adjustment mechanism 45A and the position adjustment mechanism 45B. After the retaining member 40 is fixed by the fastening member 42, the position adjustment mechanism 45A and the position adjustment mechanism 45B can be removed from the device.

[0077] (Functions and Effects)

[0078] In the resin molding apparatus 50, a servo motor unit 15 drives the ball screws 11 and 12. As in the example described at the beginning, when assembling the apparatus, it is not necessary to align the first threaded shaft with the first drive motor and the second threaded shaft with the second drive motor. It is sufficient to align the drive member 18 (roller pinion) of the servo motor unit 15 with the gears G1 and G2 of the ball screws 11 and 12.

[0079] When the device is in operation, it is required to manage torque or balance with high precision when the first drive motor and the second drive motor are driven in a way that is accurate and synchronized with the first threaded shaft and the second threaded shaft. In the resin molding apparatus 50, a servo motor unit 15 can drive the ball screw 11 and the ball screw 12 via the drive gear 17, the drive member 18 and the gears G1 and G2. Through physical (mechanical) power transmission, the synchronous rotation of the ball screw 11 and the ball screw 12 can be achieved with a simple structure.

[0080] When using a timing belt or similar device to synchronize gears G1 and G2, it is necessary to manage the elongation and deterioration of the accompanying belt. In the resin molding apparatus 50, a single servo motor unit 15 can drive the ball screws 11 and 12 via the drive gear 17, drive member 18, and gears G1 and G2, eliminating the need for a belt. From the viewpoint of the number of products such as the first drive motor, the second drive motor, or the timing belt, it is also possible to achieve miniaturization or cost reduction of the apparatus using a single servo motor unit 15.

[0081] In the resin molding apparatus 50, the holding member 40 is supported by the bracket 25 and is movable relative to the bracket 25. The relative position of the holding member 40 relative to the bracket 25 can be adjusted by the position adjustment mechanism 45A and the position adjustment mechanism 45B. By adjusting the relative position of the holding member 40 relative to the bracket 25, the positional relationship between the drive member 18 and the gears G1 and G2 is optimized, and the contact condition of the drive member 18 with respect to the gears G1 and G2 is optimized. This can reduce or prevent backlash, or reduce wear on each gear.

[0082] In position adjustment mechanisms 45A and 45B, the abutment member 46 moves toward the holding member 40 by the elastic restoring force of the elastic member 47. Figure 13 The position of the end 46T of the abutment member 46 determines the relative position of the retaining member 40 with respect to the bracket 25. With this structure, the relative position of the retaining member 40 with respect to the bracket 25 can be precisely adjusted, and the possibility of excessive contact between the gears can be reduced during position adjustment.

[0083] In the resin molding apparatus 50, the drive gear 17 and gears G1 and G2 each have tooth profiles based on a subcycloid curve. When the drive gear 17 meshes with the drive member 18, the roller pin 18P moves along a trajectory 18R relative to the drive gear 17 with its subcycloid-based tooth profile, thereby achieving high power transmission efficiency. This structure is not limited to this; any tooth profile shape, such as an involute curve or a cycloid curve (or other than this), can also be used.

[0084] Furthermore, regarding power transmission, the drive gear 17 can also transmit power directly to gears G1 and G2 without going through the drive member 18 (idler gear). In this case, the drive gear 17 functions as a "drive member". Regarding power transmission, it is not limited to power transmission from gears such as the drive gear 17 or drive member 18 to gears such as G1 and G2; a rack and pinion mechanism can also be used.

[0085] The embodiments of this disclosure have been described above, but it should be understood that all aspects of the disclosed embodiments are exemplary and not restrictive. The scope of this disclosure is defined by the claims and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0086] Explanation of icon numbers

[0087] 10: Mold Closing Mechanism

[0088] 11: Ball screw (first ball screw)

[0089] 12: Ball screw (second ball screw)

[0090] 15: Servo Motor Unit

[0091] 16: Motor body

[0092] 17: Drive gear

[0093] 17R: Tooth profile

[0094] 18: Driving components

[0095] 18P: Roller pin

[0096] 18R: Track

[0097] 20: Main frame

[0098] 21, 22: Sidewall components

[0099] 23: Base

[0100] 23S: Mounting surface

[0101] 24: Base

[0102] 25: Bracket

[0103] 26: Back panel

[0104] 27A: Side panel section (first side panel section)

[0105] 27B: Side panel section (second side panel section)

[0106] 28A, 28B, 46T: End caps

[0107] 29A, 29B: Support plates

[0108] 31: Movable platform

[0109] 32: Intermediate plate

[0110] 33: Fixed platform

[0111] 35: Lower mold

[0112] 36: Upper mold

[0113] 37: Mold cavity

[0114] 38: Sliding mechanism

[0115] 39: Linkage Mechanism

[0116] 40: Retaining component

[0117] 41A: Flat plate section

[0118] 41B: Protrusion

[0119] 41C: Step difference part

[0120] 41H: Reception Department

[0121] 41P: Opening

[0122] 41S, 41T: End face

[0123] 42: Fastening components

[0124] 45A, 45B: Position adjustment mechanism

[0125] 46: Abutment component

[0126] 47: Elastic Components

[0127] 48: Restricting Components

[0128] 50: Resin molding device

[0129] 51: Forming section

[0130] 63: Supply and storage module

[0131] 64: Molding Module

[0132] 65: Material Supply Module

[0133] 66: Sealing front substrate

[0134] 67: Supply Department

[0135] 68: The substrate is now sealed.

[0136] 69: Storage Department

[0137] 70: Loading section

[0138] 71, 76: Transporting organizations

[0139] 72: Workbench

[0140] 73: Supply institutions

[0141] 74: Confinement facilities

[0142] 75: Investment Institutions

[0143] 78: Release film

[0144] C1, P1: Position

[0145] G1: Gear (First Gear)

[0146] G2: Gear (Second Gear)

[0147] M1, S1, T1: Standby position.

Claims

1. A resin molding apparatus, comprising: The main frame has a support structure; The movable platform is supported by the main frame; A first ball screw has a first gear and is connected to the movable platform; The second ball screw has a second gear and is connected to the movable platform; The servo motor unit has a drive component, which is connected to the first gear and the second gear, and drives the first ball screw and the second ball screw to move the movable platform up and down. The retaining member, supported by the bracket, is movable relative to the bracket and holds the servo motor unit. By moving relative to the bracket, the positional relationship of the driving member relative to the first gear and the second gear changes. as well as A position adjustment mechanism is used to adjust the relative position of the holding member with respect to the bracket.

2. The resin molding apparatus according to claim 1, wherein... The main frame also has a base, which supports the first ball screw and the second ball screw. The bracket is fixed to the base.

3. The resin molding apparatus according to claim 2, wherein... The bracket has a back plate portion. The retaining member is disposed between the base and the back plate portion. The position adjustment mechanism includes an abutment member mounted on the back plate and movable in a direction approaching the retaining member and in the opposite direction. The relative position of the retaining member to the bracket is adjusted by the contacting member abutting against the retaining member.

4. The resin molding apparatus according to claim 3, wherein The position adjustment mechanism further includes: An elastic member applies force to the abutting member in a direction that brings it closer to the retaining member; as well as A limiting member restricts the amount of movement of the abutting member, which is moved by an applied force, in the approach direction.

5. The resin molding apparatus according to any one of claims 2 to 4, wherein The bracket has a first side plate portion and a second side plate portion. The retaining member is disposed between the first side plate portion and the second side plate portion. The end of the first side plate is fixed to the base. The end of the second side plate is fixed to the base.

6. The resin molding apparatus according to any one of claims 1 to 5, It also includes a fastening member for securing the retaining member to the bracket and thereby fixing the position of the retaining member relative to the bracket.

7. The resin molding apparatus according to any one of claims 1 to 6, wherein The servo motor unit also has a drive gear. The driving component is a roller gear that rotates via the driving gear.

8. The resin molding apparatus according to claim 7, wherein The drive gear, the first gear, and the second gear each have a tooth profile based on a subcycloid curve.

9. A method for manufacturing a resin molded article, comprising a step of resin molding an object to be molded using a resin molding apparatus as described in any one of claims 1 to 8.

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