Resin molding device and manufacturing method for resin molded article

Abstract

To obtain a resin molding device capable of realizing upward / downward movement of a movable platen with a simple structure.SOLUTION: A resin molding device has a body frame 20 having a bracket 25, a movable platen 31 supported by the body frame 20, a first ball screw 11 having a first gear G1, a second ball screw 12 having a second gear G2, and a drive member 18, wherein the drive member 18 includes a servomotor unit 15 connected to the first gear G1 and the second gear G2 and moving the movable platen 31 upwardly / downwardly by driving the first ball screw 11 and the second ball screw 12, a holding member 40 supported by the bracket 25, holding the servomotor unit 15, and changing the physical relationship of the drive member 18 to the first gear G1 and the second gear G2 by relative displacement to the bracket 25, and a position adjustment mechanism 45A for controlling the relative position of the holding member 40 to the bracket 25.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present specification relates to a resin molding apparatus and a method for manufacturing a resin molded product. [Background technology]

[0002] As disclosed in JP 2014-233882 A (Patent Document 1), a resin molding device is known that uses multiple screw shafts to raise and lower a movable platen. In the device disclosed in Patent Document 1, a first screw shaft and a second screw shaft support the movable platen, the first screw shaft is connected to a first drive motor, and the second screw shaft is connected to a second drive motor. A control unit drives the first drive motor and the second drive motor, causing the first screw shaft and the second screw shaft to raise and lower the movable platen. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-233882 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the above-mentioned configuration is adopted, when assembling the device, the first screw shaft and the first drive motor are aligned, and the second screw shaft and the second drive motor are aligned. When operating the device, the first drive motor and the second drive motor are driven so that the first screw shaft and the second screw shaft are accurately synchronized to avoid excessive tilting of the movable platen or unintended malfunctions. The above-mentioned configuration has room for improvement in terms of simplification.

[0005] The present specification aims to disclose a resin molding apparatus capable of achieving raising and lowering movement of a movable platen with a simpler configuration than conventional apparatuses, and a method for manufacturing a resin molded product by resin molding an object to be molded using such a resin molding apparatus. [Means for solving the problem]

[0006] In a first aspect of the present disclosure, a resin molding apparatus includes a main body frame having a bracket, a movable platen supported by the main body frame, a first ball screw having a first gear and connected to the movable platen, a second ball screw having a second gear and connected to the movable platen, a servo motor unit having a drive member connected to both the first gear and the second gear and driving the first ball screw and the second ball screw to raise and lower the movable platen, a holding member supported by the bracket so as to be movable relative to the bracket, holding the servo motor unit, and moving relative to the bracket to change a positional relationship of the drive member to the first gear and the second gear, and a position adjustment mechanism for adjusting the relative position of the holding member to the bracket.

[0007] In a second aspect of the present disclosure, a manufacturing method of a resin molding apparatus includes a step of resin molding an object using the resin molding apparatus according to the first aspect of the present disclosure. Effect of the Invention

[0008] According to the disclosure of this specification, it is possible to obtain a resin molding apparatus that can be assembled and the movable platen can be raised and lowered in a simple manner, and a method for manufacturing a resin molded product that uses such a resin molding apparatus to resin mold an object to be molded. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a plan view showing a resin molding apparatus 50. [Diagram 2] 2 is a front view showing a molding section 51 provided in a resin molding device 50. FIG. [Diagram 3] 2 is a perspective view of a mold clamping mechanism 10 and a main body frame 20 provided in the resin molding apparatus 50, as viewed from above. [Figure 4]2 is a perspective view of a mold clamping mechanism 10 and a main body frame 20 provided in the resin molding apparatus 50, as viewed from below. [Diagram 5] 2 is a bottom view of a mold clamping mechanism 10 and a main body frame 20 provided in the resin molding apparatus 50, viewed from below. [Figure 6] 2 is a perspective view showing a bracket 25 and a holding member 40 provided in a resin molding apparatus 50. FIG. [Figure 7] 2 is a plan view showing a bracket 25 and a holding member 40 provided in a resin molding apparatus 50. FIG. [Figure 8] 10 is a diagram for illustrating a schematic relationship between the tooth profile of a drive gear 17 and a roller pin 18P provided on a drive member 18. FIG. [Figure 9] 10 is a cross-sectional view showing a state (first state) in which a position adjustment mechanism 45A provided in a resin molding apparatus 50 adjusts the position of a holding member 40. FIG. [Figure 10] 13 is a cross-sectional view showing a state in which a position adjustment mechanism 45A provided in the resin molding apparatus 50 adjusts the position of the holding member 40 (second state). FIG. [Figure 11] 13 is a cross-sectional view showing a state in which a position adjustment mechanism 45A provided in the resin molding apparatus 50 adjusts the position of the holding member 40 (third state). FIG. [Figure 12] 13 is a cross-sectional view showing a state in which a position adjustment mechanism 45A provided in the resin molding apparatus 50 adjusts the position of the holding member 40 (fourth state). FIG. [Figure 13] 13 is a cross-sectional view showing a state in which a position adjustment mechanism 45A provided in the resin molding apparatus 50 adjusts the position of the holding member 40 (a fifth state). FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The following describes the embodiments. In the embodiments described below, when numbers, amounts, etc. are mentioned, the scope of the present disclosure is not necessarily limited to the numbers, amounts, etc., unless otherwise specified. Each component is not necessarily essential to the present disclosure, unless otherwise specified. The same reference numbers are used for the same parts and corresponding parts, and duplicate descriptions may not be repeated.

[0011] [Resin molding equipment 50] 1 is a plan view showing a resin molding apparatus 50. The resin molding apparatus 50 performs resin molding on a molding object. The resin molding apparatus 50 includes a supply storage module 63, a molding module 64, and a material supply module 65 as components.

[0012] (Supply Storage Module 63) The supply storage module 63 is provided with a supply section 67 which supplies a pre-sealing substrate 66 (molding object), a storage section 69 which stores a sealed substrate 68 (resin molded product), a placement section 70 which transfers the pre-sealing substrate 66 and the sealed substrate 68, and a transport mechanism 71 which transports the pre-sealing substrate 66 and the sealed substrate 68. In Fig. 1, the transport mechanism 71 is disposed at a standby position S1.

[0013] (Molding module 64 and molding section 51) 2 is a front view showing a molding section 51 provided in the resin molding apparatus 50. The molding module 64 (FIG. 1) is provided with the molding section 51. The molding section 51 (see FIG. 2) has a mold clamping mechanism 10, a main body frame 20, a movable platen 31, an intermediate plate 32, a fixed platen 33, a lower mold 35, an upper mold 36, a slide mechanism 38, and an interlocking mechanism 39.

[0014] Fig. 3 is a perspective view of the mold clamping mechanism 10 and the main body frame 20 viewed from above. Fig. 4 and Fig. 5 are a perspective view and a bottom view of the mold clamping mechanism 10 and the main body frame 20 viewed from below, respectively.

[0015] 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, 45B. Details of the mold clamping mechanism 10 will be described later with reference to Figures 3 to 8. The main body frame 20 has side wall members 21, 22 (Figures 2 and 3), a pedestal 23 (Figure 3), a base portion 24 (Figure 3), and a bracket 25.

[0016] The side wall members 21, 22 are disposed on both lateral sides (here, both left and right sides) of the movable platen 31 and the intermediate plate 32, and support the movable platen 31 and the intermediate plate 32. The pedestal 23 (FIG. 3) has a substantially rectangular parallelepiped shape, and supports the ball screws 11 and 12. The base portion 24 (FIG. 3) constitutes the lowermost part of the main body frame 20.

[0017] The slide mechanism 38 slides the intermediate plate 32 in the up-down direction relative to the sidewall members 21, 22, and the interlocking mechanism 39 interlocks the elevation of the intermediate plate 32 with the elevation of the movable platen 31. By interlocking the elevation of the intermediate plate 32 with the elevation of the movable platen 31, the interlocking mechanism 39 synchronizes the mold clamping and opening of the two lower dies 35 and the two upper dies 36.

[0018] A cavity 37 is provided in the lower die 35, and a release film 78 (FIG. 1) and a resin material (not shown) are supplied to the cavity 37. The mold clamping mechanism 10 clamps and opens the lower die 35 and the upper die 36, and in the clamped state, the lower die 35 and the upper die 36 perform resin molding on the molding object.

[0019] In the resin molding apparatus 50, two lower dies 35 and two upper dies 36 are used, but only one set of the lower dies 35 and the upper dies 36 may be used in the resin molding apparatus 50 (a single-layer configuration may be used). The slide mechanism 38 and the interlocking mechanism 39 may be employed as necessary when multiple sets of the lower dies 35 and the upper dies 36 are used.

[0020] (Material Supply Module 65) The material supply module 65 is provided with a table 72, a supply mechanism 73 that supplies a release film 78 to the table 72, a storage mechanism 74 that stores a resin material, an input mechanism 75 that inputs the resin material into the storage mechanism 74, and a transport mechanism 76 that transports the release film 78 and the storage mechanism 74. In Fig. 1, the table 72 is disposed at a standby position T1, and the transport mechanism 76 is disposed at a standby position M1.

[0021] (Method of manufacturing resin molded products) The manufacturing method of a resin molded product performed by the resin molding apparatus 50 is as follows. In the supply and storage module 63 (FIG. 1), the pre-sealing substrate 66 is sent from the supply section 67 to the placement section 70, and the transport mechanism 71 receives the pre-sealing substrate 66 from the placement section 70. The transport mechanism 71 moves to place the pre-sealing substrate 66 at position C1 on the lower mold 35 of the molding module 64. The transport mechanism 71 moves up to set the pre-sealing substrate 66 on the upper mold 36.

[0022] In the material supply module 65, a release film 78 is placed on the table 72 from the supply mechanism 73. The conveying mechanism 76 receives the release film 78 from the table 72 and moves it to the position C1 of the lower mold 35 via the position P1 of the molding module 64. The release film 78 is supplied onto the lower mold 35 by the conveying mechanism 76.

[0023] Table 72 moves, and storage mechanism 74 is placed on table 72. Table 72 moves further, and resin material is supplied from feeding mechanism 75 to storage mechanism 74 on table 72. Transport mechanism 76 receives storage mechanism 74 on table 72. Transport mechanism 76 moves to position C1 on lower mold 35 via position P1 in molding module 64. Resin material is supplied to cavity 37 of lower mold 35 by transport mechanism 76.

[0024] In the molding section 51, the lower die 35 is raised by the clamping mechanism 10, and the lower die 35 and the upper die 36 are clamped together. With the lower die 35 and the upper die 36 clamped together, resin molding is performed on the pre-sealed substrate 66 (molding object). After a predetermined time has elapsed, the upper die 36 and the lower die 35 are opened. The transport mechanism 71 receives the sealed substrate 68 and delivers it to the placement section 70. The sealed substrate 68 is stored from the placement section 70 in the storage section 69. The method for manufacturing a resin molded product performed by the resin molding apparatus 50 is as described above.

[0025] (Mold clamping mechanism 10 and main body frame 20) 3 to 5, the mold clamping mechanism 10 has 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 body frame 20 has side wall members 21 and 22, a pedestal 23, a base portion 24, and a bracket 25.

[0026] The base portion 24 of the main body frame 20 has a rectangular frame shape, and the pedestal 23 is disposed so as to span from one side portion to the other side portion of the base portion 24. Although details will be described later, a bracket 25 is fixed to a mounting surface 23S (FIG. 3) of the pedestal 23. The ball screws 11, 12 are disposed so as to be spaced apart from each other in the direction in which the base portion 24 extends (the left-right direction in the plane of FIG. 2). The ball screws 11, 12 are fixed to the pedestal 23 so that the central axes of the ball screws 11, 12 extend along the vertical direction (see FIG. 3).

[0027] 2, the ball screws 11 and 12 are connected to a movable platen 31. The movable platen 31 is raised and lowered by a portion of the ball screws 11 and 12 being displaced up and down. As the movable platen 31 is raised and lowered, the intermediate plate 32 is also raised and lowered by an interlocking mechanism 39.

[0028] 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). The gears G1 and G2 have the shape of spur gears. The main bodies of the ball screws 11 and 12 are disposed above the base 23, and the gears G1 and G2 are disposed below the base 23 (FIGS. 3 to 5).

[0029] (Bracket 25 and holding member 40) Bracket 25 of main body frame 20 supports servo motor unit 15 via a holding member 40. Figures 6 and 7 are a perspective view and a plan view showing bracket 25 and holding member 40, respectively.

[0030] Bracket 25 has back plate portion 26, side plate portion 27A (first side plate portion), side plate portion 27B (second side plate portion), and support plates 29A and 29B. Back plate portion 26 has a flat plate shape. Back plate portion 26 faces mounting surface 23S (FIG. 3) of base 23 with a gap therebetween and is disposed parallel to mounting surface 23S.

[0031] 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 perpendicular to back plate portion 26. End portion 28A of side plate portion 27A and end portion 28B of side plate portion 27B are fixed to mounting surface 23S by fastening screws or the like.

[0032] 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 section, and side plate portion 27B and support plate 29B form an L-shape in cross section (opposite to the L-shape described above). The two L-shapes face each other, and holding member 40 is disposed inside them.

[0033] The holding member 40 is disposed between the mounting surface 23S of the base 23 and the back plate portion 26 of the bracket 25. The holding member 40 is disposed between the side plate portions 27A and 27B, and is supported from below by the support plates 29A and 29B. The support plates 29A and 29B are provided with openings and screw holes for fixing the fastening members 42 (FIG. 3) composed of bolts or screws.

[0034] The holding member 40 has a flat plate portion 41A, a protruding portion 41B, a step portion 41C, a receiving portion 41H, an opening 41P, and end faces 41S, 41T. The flat plate portion 41A has a rectangular outer shape and is disposed between the side plate portions 27A and 27B of the bracket 25. A plurality of openings 41P are provided side by side on both sides of the flat plate portion 41A (portions of the flat plate portion 41A facing the support plates 29A, 29B).

[0035] Fastening member 42 is inserted through opening 41P and fastened to support plates 29A, 29B, thereby fastening holding member 40 to bracket 25 and fixing the position of holding member 40 relative to bracket 25. Because opening 41P has the shape of an elongated hole, it becomes possible to change the position of holding member 40 relative to bracket 25 within a range in which opening 41P and fastening member 42 are movable relative to each other.

[0036] The step portion 41C is provided at approximately the center of the flat plate portion 41A, and the receiving portion 41H is provided so as to penetrate the step portion 41C in the thickness direction. The motor body 16 of the servo motor unit 15 is fixed to the holding member 40 by utilizing the step portion 41C and the receiving portion 41H (see FIG. 3).

[0037] The servo motor unit 15 has a motor body 16, a drive gear 17, and a drive member 18. The drive gear 17 has a spur gear shape and is attached to an end (lower end) of the motor body 16. The drive gear 17 and the drive member 18 are disposed adjacent to each other on the same plane. Here, the drive member 18 is a roller pinion rotated by the drive gear 17. The motor body 16 of the servo motor unit 15 is disposed above the holding member 40 (flat plate portion 41A), and the drive gear 17 and the drive member 18 are disposed below the holding member 40 (flat plate portion 41A) (FIGS. 3 to 5).

[0038] Of the flat plate portion 41A of the holding member 40, the surface closer to the base 23 (mounting surface 23S) constitutes the end surface 41S. Of the flat plate portion 41A, the surface farther from the base 23 (mounting surface 23S) constitutes the end surface 41T. The protruding portion 41B is provided to protrude from the end surface 41S of the flat plate portion 41A. A driving member 18 (here, a roller pinion) of the servo motor unit 15 is attached to the protruding portion 41B. By providing a long hole in the protruding portion 41B for attaching the driving member 18, it becomes possible to change the attachment position of the driving member 18 with respect to the protruding portion 41B, and thus it becomes possible to adjust the relative positional relationship between the driving gear 17 and the driving member 18.

[0039] The holding member 40 is supported by the bracket 25 so as to be movable relative to the bracket 25 in a direction approaching the base 23 and in the opposite direction (the direction of the arrow AR in FIG. 6). The holding member 40 holds the servo motor unit 15, and when the holding member 40 moves in a direction approaching the base 23 and in the opposite direction (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 integrally with the holding member 40 in the same direction (the direction of the arrow AR).

[0040] A drive member 18 (here, a roller pinion) of the servo motor unit 15 is connected to both the gear G1 of the ball screw 11 and the gear G2 of the ball screw 12. A drive gear 17 of the servo motor unit 15 rotates the 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 the gears G1 and G2, thereby moving the movable platen 31 up and down.

[0041] With reference to Fig. 8, when the driving member 18 is composed of a roller pinion, each of the driving gear 17 and the gears G1 and G2 may have a tooth profile based on a trochoid curve. Fig. 8 shows a schematic diagram of the relationship between the tooth profile 17R of the driving gear 17 and the roller pin 18P provided on the driving member 18 (roller pinion). When the driving gear 17 and the driving member 18 mesh with each other, the roller pin 18P moves along a trajectory 18R relative to the driving gear 17 having a tooth profile based on a trochoid curve, and this creates a state in which each gear is constantly in contact with the roller pinion at two or three points, which makes it possible to obtain high power transmission efficiency with almost no backlash.

[0042] 6 and 7, when assembling the resin molding apparatus 50, the positional relationship of the driving member 18 (roller pinion) with respect to the gears G1 and G2 changes as the holding member 40 moves in the direction of the arrow AR relative to the bracket 25. In order to optimize the positional relationship of the driving member 18 with respect to the gears G1 and G2, position adjustment mechanisms 45A and 45B are used.

[0043] (Position adjustment mechanism 45A, 45B) The position adjustment mechanisms 45A and 45B adjust the relative position of the holding member 40 with respect to the bracket 25. Since the position adjustment mechanisms 45A and 45B have similar configurations, only the position adjustment mechanism 45A will be described here.

[0044] 9 is a cross-sectional view showing a state (first state) in which position adjustment mechanism 45A adjusts the position with respect to holding member 40. With reference to FIGS. 8 and 9, position adjustment mechanism 45A includes a contact member 46, an elastic member 47, and a restricting member 48. Contact member 46 is formed of a bolt here. Contact member 46 is attached to back plate portion 26 of bracket 25.

[0045] The abutment member 46 is inserted, for example, into a through hole provided in the back plate portion 26, and is movable in a direction approaching the holding member 40 and in the opposite direction. The position of the holding member 40 relative to the bracket 25 can be adjusted by abutting an end 46T of the abutment member 46 against the holding member 40 (an end surface 41T of the flat plate portion 41A).

[0046] Here, an elastic member 47 is disposed between an end 46T of the abutment member 46 and the back plate portion 26 of the bracket 25. The elastic member 47 biases the abutment member 46 in a direction in which the abutment member 46 approaches the holding member 40 (a direction from the right to the left on the paper surface of FIG. 9). The restricting member 48 is formed of a nut, and is disposed on the opposite side of the back plate portion 26 of the bracket 25 to the elastic member 47. The restricting member 48 restricts the amount of movement of the abutment member 46 in the approaching direction, which moves when biased.

[0047] 10 to 13 are cross-sectional views showing states (second to fifth states) in which the position adjustment mechanism 45A adjusts the position of the holding member 40, respectively.

[0048] When adjusting the relative position of the holding member 40 with respect to the bracket 25, first, the abutting member 46 is moved in a direction to be pulled out from the back plate portion 26 (FIGS. 9 and 10). At this time, the restricting member 48 attached to the abutting member 46 also moves in the same direction, and the elastic member 47 is compressed.

[0049] Next, the restricting member 48 (nut) is rotated to bring the restricting member 48 into contact with the back plate portion 26 (FIG. 11). This maintains the state in which the abutting member 46 is pulled out from the back plate portion 26. Next, the restricting member 48 is rotated in the opposite direction (FIGS. 12 and 13). This causes the abutting member 46 to move in a direction approaching the holding member 40 due to the elastic restoring force of the elastic member 47 (FIG. 13). The position of the end 46T of the abutting member 46 determines the relative position of the holding member 40 with respect to the bracket 25.

[0050] After the adjustment of the relative positions is completed, fastening members 42 (FIG. 6) are fastened to support plates 29A and 29B. Holding member 40 is fastened to bracket 25, and the position of holding member 40 relative to bracket 25 is fixed, thereby optimizing the positional relationship of driving member 18 with gears G1 and G2 and optimizing the contact condition (preload) of driving member 18 with gears G1 and G2, making it possible to reduce or prevent the occurrence of backlash.

[0051] The assembly process may be, for example, to fix bracket 25 to base 23. Then servo motor unit 15 is attached to holding member 40 to form an integrated unit, and the integrated holding member 40 and servo motor unit 15 are set on bracket 25, and the position is adjusted by position adjustment mechanisms 45A and 45B. After fixing holding member 40 with fastening members 42, position adjustment mechanisms 45A and 45B may be removed from the device.

[0052] (Action and Effects) In the resin molding apparatus 50, the ball screws 11 and 12 are driven by one servo motor unit 15. As in the example described at the beginning, when assembling the apparatus, it is not necessary to align the first screw shaft with the first drive motor and the second screw shaft with the second drive motor; it is sufficient to align the drive member 18 (roller pinion) of one servo motor unit 15 with the gears G1 and G2 of the ball screws 11 and 12.

[0053] When the first and second drive motors are driven so that the first and second screw shafts are precisely synchronized when the device is operated, highly accurate management of torque and balance is required. In the resin molding device 50, one 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, and the synchronous rotation of the ball screws 11 and 12 can be achieved with a simple configuration through physical (mechanical) power transmission.

[0054] When synchronizing gears G1 and G2 with a timing belt or the like, it is necessary to manage the degree of stretching that accompanies belt deterioration. In the resin molding device 50, one servo motor unit 15 can drive ball screws 11 and 12 via drive gear 17, drive member 18, and gears G1 and G2 without using a belt. From the viewpoint of the number of products such as the first drive motor, the second drive motor, and the timing belt, the use of one servo motor unit 15 makes it possible to make the device more compact and reduce costs.

[0055] In the resin molding apparatus 50, the holding member 40 is supported by the bracket 25 so as to be movable relative to the bracket 25, and the position adjustment mechanisms 45A and 45B can adjust the relative position of the holding member 40 with respect to the bracket 25. By adjusting the relative position of the holding member 40 with respect to the bracket 25, the positional relationship of the driving member 18 with respect to the gears G1 and G2 is optimized, and the contact condition of the driving member 18 with respect to the gears G1 and G2 is optimized, making it possible to reduce or prevent the occurrence of backlash and reduce wear of each gear.

[0056] In the position adjustment mechanisms 45A and 45B, the elastic restoring force of the elastic member 47 causes the abutting member 46 to move in a direction approaching the holding member 40 (FIG. 13). The position of the end 46T of the abutting member 46 determines the relative position of the holding member 40 with respect to the bracket 25. With this configuration, the relative position of the holding member 40 with respect to the bracket 25 can be finely adjusted, and the possibility of excessive contact between the gears during position adjustment can be reduced.

[0057] In the resin molding device 50, the drive gear 17 and the gears G1 and G2 each have a tooth profile based on a trochoid curve. When the drive gear 17 and the drive member 18 mesh with each other, the roller pin 18P moves along a trajectory 18R relative to the drive gear 17, which has a tooth profile based on a trochoid curve, and this makes it possible to obtain high power transmission efficiency. The present invention is not limited to this configuration, and any tooth profile shape, such as an involute curve or a psycholoid curve (or other), may be used.

[0058] Regarding power transmission, the drive gear 17 may transmit power directly to the gears G1 and G2 without passing through the drive member 18 (idle gear). In this case, the drive gear 17 functions as a "drive member." Regarding power transmission, the power transmission is not limited to power transmission from gears such as the drive gear 17 and the drive member 18 to gears such as the gears G1 and G2, and a rack and pinion mechanism may be adopted.

[0059] Although the embodiment of the present disclosure has been described above, the embodiment disclosed herein should be considered as illustrative and not restrictive in all respects. The scope of the present disclosure is defined by the claims, and it is intended to include all modifications within the scope and meaning equivalent to the claims. [Explanation of symbols]

[0060] 10 mold clamping mechanism, 11 ball screw (first ball screw), 12 ball screw (second ball screw), 15 servo motor unit, 16 motor body, 17 drive gear, 17R tooth profile, 18 drive member, 18P roller pin, 18R track, 20 main body frame, 21, 22 side wall member, 23 base, 23S mounting surface, 24 base portion, 25 bracket, 26 back plate portion, 27A side plate portion (first side plate portion), 27B side plate portion (second side plate portion), 28A, 28B, 46T end portion, 29A, 29B support plate, 31 movable platen, 32 intermediate plate, 33 fixed platen, 35 lower mold, 36 upper mold, 37 cavity, 38 slide mechanism, 39 interlocking mechanism, 40 holding member, 41A flat plate portion, 41B protruding portion, 41C stepped portion, 41H receiving portion, 41P opening, 41S, 41T end faces, 42 fastening member, 45A, 45B position adjustment mechanism, 46 abutting member, 47 elastic member, 48 regulating member, 50 resin molding device, 51 molding section, 63 supply storage module, 64 molding module, 65 material supply module, 66 pre-sealed substrate, 67 supply section, 68 sealed substrate, 69 storage section, 70 placement section, 71, 76 conveying mechanism, 72 table, 73 supply mechanism, 74 storage mechanism, 75 insertion mechanism, 78 release film, C1, P1 position, G1 gear (first gear), G2 gear (second gear), M1, S1, T1 standby position.

Claims

1. a main body frame having a bracket; a movable platen supported by the main body frame; a first ball screw having a first gear and connected to the movable platen; a second ball screw having a second gear and connected to the movable platen; a servo motor unit having a drive member connected to both the first gear and the second gear, the drive member driving the first ball screw and the second ball screw to move the movable platen up and down; a holding member that is supported by the bracket so as to be movable relative to the bracket, holds the servo motor unit, and moves relative to the bracket to change a positional relationship of the drive member with respect to the first gear and the second gear, Resin molding equipment.

2. the main body frame further includes a base for supporting the first ball screw and the second ball screw; The bracket is fixed to the base. The resin molding device according to claim 1 .

3. Further comprising a position adjustment mechanism for adjusting the relative position of the holding member with respect to the bracket, The bracket has a back plate portion, the holding member is disposed between the base and the back plate portion, the position adjustment mechanism includes a contact member attached to the back plate portion and movable in a direction toward the holding member and in an opposite direction; When the abutment member abuts against the holding member, the relative position of the holding member with respect to the bracket is adjusted. The resin molding device according to claim 2 .

4. The position adjustment mechanism includes: an elastic member that biases the contact member in a direction in which the contact member approaches the holding member; a restricting member that restricts the amount of movement of the contact member in the approaching direction, the contact member being biased to move, The resin molding apparatus according to claim 3 .

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

6. a fastening member for fastening the holding member to the bracket and fixing the position of the holding member relative to the bracket; The resin molding device according to claim 1 .

7. the servo motor unit further includes a drive gear; the drive member is a roller pinion rotated by the drive gear; The resin molding device according to claim 1 .

8. each of the drive gear, the first gear, and the second gear has a tooth profile based on a trochoid curve; The resin molding apparatus according to claim 7.

9. A method for manufacturing a resin molded product, comprising a step of resin molding an object using the resin molding apparatus according to claim 1.

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