TWI710449B - Conveying drive mechanism, resin molding device, and manufacturing method of resin molded product - Google Patents

Abstract

The transmission drive mechanism (60) of the present invention includes a transmission drive shaft (63) and a plunger unit (65) on the transmission drive shaft (63). The transmission drive shaft (63) includes at least: a first transmission drive shaft (63a), a second transmission drive shaft (63b), and a third transmission drive shaft (63c). In a plan view from the front end (740) of the plunger (64), the center (631c) of the third transmission drive shaft (63c) is located at the center (631a) passing through the first transmission drive shaft (63a) and the second Convey the center (631b) of the drive shaft (63b) outside of the straight line (632).

Description

Conveying drive mechanism, resin molding device, and manufacturing method of resin molded product

The present disclosure relates to a transmission driving mechanism, a resin molding device, and a method of manufacturing a resin molded product.

For example, Patent Document 1 describes a conveyor molding machine including four plungers on a lift table connected to a rod of a driving cylinder. The conveyor molding machine of Patent Document 1 closes the upper mold and the lower mold, and then drives the driving cylinder to push up the plunger. Thereby, the piston part of the plunger slides in the tank to extrude the molten resin, and the resin is injected into the cavity formed between the upper mold and the lower mold.

[Prior Art Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-open No. 8-156012

The conveyor molding machine described in Patent Document 1 has a configuration in which two driving cylinders are arranged linearly with respect to the four plungers arranged linearly on the lift table. Therefore, in the conveyor molding machine described in Patent Document 1, it may not be possible to stably raise and lower the elevating table by the driving cylinder.

According to the embodiment disclosed here, a transmission drive mechanism can be provided, the transmission drive mechanism includes: a transmission drive shaft; and a plunger unit on the transmission drive shaft, the transmission drive shaft includes at least: a first transmission drive shaft, a second transmission drive shaft The transmission drive shaft and the third transmission drive shaft. The plunger unit includes a plurality of plungers and a plunger unit body. The multiple plungers constitute a plunger row extending in the first direction, and each front end of the multiple plungers is located at the plunger Outside of the unit body, the first transmission drive shaft, the third transmission drive shaft, and the second transmission drive shaft are located in the first direction in this order. In the plan view from the front end of the plunger, the center of the third transmission drive shaft It is located at a location other than a straight line passing through the center of the first transmission drive shaft and the center of the second transmission drive shaft.

According to the embodiment disclosed here, it is possible to provide a resin molding apparatus including the conveying drive mechanism, a molding die, and a mold clamping mechanism. The molding die is configured to be able to transfer the resin by the plunger of the conveying drive mechanism. It is transferred to the cavity of the forming mold, and the mold clamping mechanism is configured to be capable of clamping the forming mold.

According to the embodiment disclosed here, it is possible to provide a method of manufacturing a resin molded product, which is a method of manufacturing a resin molded product using the resin molding apparatus, the method of manufacturing a resin molded product includes: setting a molded object in a molding die Step; the step of closing the molding die; the step of resin molding the molded object; and the step of opening the molding die.

According to the embodiment disclosed here, it is possible to provide a conveying drive mechanism, a resin molding device, and a resin molded product that can perform stable lifting operations. 造方法。 Fabrication methods.

1: molding object

10: The first mold

11: The first recess (concave)

12: Collection Department

13: The first template

14: Resin passage

20: second mode

21: The second recess (concave)

22: Can

23: second template

30: The first mold holder

31: First board

32: The first auxiliary block

40: second mold holder

41: second auxiliary block

42: second board

50: Second mold holder mounting block

60, 60a: Transmission drive mechanism

61: Plunger unit

62: Plunger unit support plate

63: Transmission drive shaft

63a: The first transmission drive shaft

63b: second transmission drive shaft

63c: Third transmission drive shaft

63d: Fourth transmission drive shaft

64, 64a, 64b: plunger

65: Plunger unit body

70, 70a: resin

90: Mould cavity

200: The first board

300: movable table

400: The second board

500: connecting rod

600: clamping mechanism

631a, 631b, 631c, 631d: center

632, 633, 741, 741a, 741b: straight

641, 642, 643: plunger row

740, 740a, 740b: front end

1000: Mould Mechanism Department

2000: Enter the loader

3000: discharge loader

A: Molded module

B: Enter the loader module

C: discharge loader module

R1~R5: area

S10, S20, S30, S40: steps

Fig. 1 is a schematic plan view of a manufacturing apparatus of a resin molded product.

Fig. 2 is a schematic perspective view of a resin molding apparatus.

Fig. 3 is a schematic partial cross-sectional view of the resin molding apparatus.

Fig. 4 is a schematic side view of the conveying drive mechanism of the first embodiment.

Fig. 5 is a schematic plan view of the conveying drive mechanism of the first embodiment.

Fig. 6 is a flowchart of a method of manufacturing a resin molded product.

Fig. 7 is a schematic partial cross-sectional view illustrating an example of a step of placing a molded object between the first mold and the second mold.

Fig. 8 is a schematic plan view of an example of a second mold.

Fig. 9 is a schematic partial cross-sectional view illustrating an example of a step of clamping the first mold and the second mold.

Fig. 10 is a schematic partial cross-sectional view illustrating an example of a procedure of resin molding of a molded object.

FIG. 11 is a schematic enlarged partial cross-sectional view illustrating the transfer of the resin into the cavity by the movement of the plunger.

Fig. 12 is a schematic enlarged partial cross-sectional view illustrating the transfer of the resin into the cavity by the movement of the plunger.

Fig. 13 is a schematic side view of a conveying drive mechanism of a comparative example.

Fig. 14 is a schematic plan view of the conveying drive mechanism of the comparative example shown in Fig. 13.

Fig. 15 is a schematic plan view of another example of the second mold.

Fig. 16 is a schematic side view of the conveying drive mechanism of the second embodiment.

Fig. 17 is a schematic plan view of the conveying drive mechanism of the second embodiment.

Fig. 18 is a schematic plan view of the conveying drive mechanism of the third embodiment.

Fig. 19 is a schematic plan view of a conveying drive mechanism of the fourth embodiment.

Fig. 20 is a schematic plan view of the conveying drive mechanism of the fifth embodiment.

Hereinafter, the embodiment will be described. In addition, in the drawings used for the description of the embodiment, the same reference signs indicate the same parts or corresponding parts.

<Embodiment 1>

FIG. 1 shows a schematic plan view of the manufacturing apparatus of the resin molded article of the first embodiment. As shown in FIG. 1, the manufacturing apparatus of the resin molded product of Embodiment 1 includes: a molding module A, an inloader module B, and an outloader module C.

The mold module A includes, for example, a mold mechanism unit 1000 configured to be capable of resin molding a molding object such as a semiconductor wafer mounted on a lead flame. The entry loader module B includes an entry loader 2000 configured to be capable of supplying molding objects to the molding module A. The discharge loader module C includes a discharge loader 3000 configured to be able to take out the resin molded product from the molding module A. The entrance loader 2000 and the discharge loader 3000 are configured to be movable in the direction indicated by the arrow in FIG. 1.

Molding module A and entering loader module B are connected by, for example, bolts or pins, etc. The connection mechanism is detachably connected to each other. In addition, the molding module A and the discharge loader module C are also detachably connected to each other by a connecting mechanism such as bolts or pins.

The manufacturing apparatus of the resin molded product of Embodiment 1 shown in FIG. 1 includes two mold modules A, but the number of mold modules A can be adjusted according to the production volume. The manufacturing apparatus of the resin molded product of Embodiment 1 may include, for example, one molding module A, or may include the molding module A increased to four. That is, the manufacturing apparatus of the resin molded product of Embodiment 1 can be made into the structure which can increase or decrease the number of mold modules A.

In addition, in the resin molded product manufacturing apparatus of Embodiment 1 shown in FIG. 1, the molding module A, the entering loader module B, and the ejecting loader module C are arranged in the order shown in FIG. 1, but For example, it is also possible to form a resin molded product by a master machine in which the molding module A, the entering loader module B, and the exit loader module C are integrated, and one or more sub-machines including only the molding module A的制造装置。 Manufacturing equipment. In addition, one molding die set A can also be understood as the manufacturing apparatus of the resin molded product of the embodiment.

Fig. 2 shows a schematic perspective view of the resin molding apparatus of the first embodiment. The resin molding apparatus of Embodiment 1 shown in FIG. 2 is arranged in the mold mechanism section 1000 of the resin molded product manufacturing apparatus of Embodiment 1 shown in FIG. 1.

As shown in FIG. 2, the resin molding apparatus of Embodiment 1 includes a first platen 200, a second platen 400, a movable platen 300, and a link 500. The second platen 400 is opposed to the first platen 200 in a spaced manner.

The movable platen 300 is located between the first platen 200 and the second platen 400, And it is configured to be able to move between the first platen 200 and the second platen 400 relative to the first platen 200 along the link 500.

The connecting rod 500 is a rod-shaped member extending between the first platen 200 and the second platen 400. One end of the connecting rod 500 is fixed to the first platen 200, and the other end of the connecting rod 500 is fixed to the second platen 400.

The resin molding apparatus of Embodiment 1 shown in FIG. 2 includes: a first mold holder 30 mounted on the first platen 200; a second mold holder mounting block 50 mounted on the movable platen 300; and a second mold holder 40. Installed in the second mold holder mounting block 50; the transmission driving mechanism 60 in the second mold holder mounting block 50; and the mold clamping mechanism 600 between the movable platen 300 and the second platen 400. Here, the second mold holder 40 is mounted on the movable table 300 via the second mold holder mounting block 50.

Fig. 3 shows a schematic partial cross-sectional view of the resin molding apparatus of the first embodiment. As shown in FIG. 3, the resin molding apparatus of Embodiment 1 includes: a first mold 10 as a molding die, held by a first mold holder 30; and a second mold 20 as a molding die, held by a second mold holder 30 40.

The mold clamping mechanism 600 is configured to be capable of clamping the first mold 10 and the second mold 20 by moving the movable platen 300 relative to the first platen 200 to press the first mold 10 and the second mold 20.

The first mold holder 30 includes a first plate 31 and a first assist block 32. The first plate 31 is configured to be attachable to the first platen 200, and includes a heat insulation plate and a heating plate in order from the first platen 200 side. The first auxiliary block 32 is configured to be able to fix the first mold 10 below the first plate 31.

The second mold holder 40 includes a second auxiliary block 41 and a second plate 42. The second plate 42 is configured to be attachable to the second mold holder mounting block 50, and includes a heat insulating plate and a heating plate in order from the second mold holder mounting block 50 side. The second auxiliary block 41 is configured to be able to fix the second mold 20 on the second plate 42.

The first mold 10 includes: a first recess 11, a cull portion 12, and a first template 13. The first recess 11 may include a shape corresponding to the shape of the molded object after resin molding. The collection part 12 is used as a resin accumulation part before the resin is transferred to a molding object. The first template 13 is configured to be fixable to the first plate 31 of the first mold holder 30.

The second mold 20 includes: a second recess 21, a pot 22, and a second template 23. The second recess 21 may include a shape corresponding to the shape of the molded object after resin molding. The can 22 is used as an installation part of the resin used for resin molding of a molding object. The second template 23 is configured to be fixable to the second plate 42 of the second mold holder 40.

Fig. 4 shows a schematic side view of the conveying drive mechanism 60 of the first embodiment which is an example of the conveying drive mechanism used in the resin molding apparatus of the first embodiment. As shown in FIG. 4, the transmission drive mechanism 60 of Embodiment 1 includes: a transmission drive shaft 63; a plunger unit 61 on the transmission drive shaft 63; and a plunger unit support plate between the transmission drive shaft 63 and the plunger unit 61 62.

The plunger unit 61 includes a plurality of plungers 64 and a plunger unit body 65. Each of the plurality of plungers 64 is a rod-shaped member extending linearly in the Z-axis direction, and each front end 740 of the plurality of plungers 64 is located outside the plunger unit body 65, and each front end 740 of the plurality of plungers 64 The other end (not shown) is located inside the plunger unit body 65. The plunger unit main body 65 is configured such that the plunger 64 can be raised and lowered inside the plunger unit main body 65.

FIG. 5 shows a schematic plan view of the conveying drive mechanism 60 of the first embodiment. FIG. 5 is a schematic plan view when the conveying drive mechanism 60 shown in FIG. 4 is viewed from the front end of the plunger 64. As shown in the plan view of FIG. 5, the plurality of plungers 64 are configured in a single row of plunger rows 641 extending in the X-axis direction as the first direction. As shown in the plan view of FIG. 5, the single row of plunger rows 641 is formed by the front ends 740 of the plurality of plungers being located on an arbitrary straight line 741.

As shown in the plan view of FIG. 5, a single row of plunger rows 641 are located in two regions R1 of the plunger unit body 65 that bisect the width in the Y-axis direction and one region R1 of the region R2. The Y-axis The direction is the second direction, and the two regions R1 and R2 are divided by a center line CC extending in the X-axis direction. In addition, a straight line 741 that passes through the respective front ends 740 of the plurality of plungers 64 constituting a single row of plunger rows 641 and extends in the X-axis direction is located in the region R1.

Furthermore, a single row of plunger rows 641 or straight lines 741 may also be located in the other area R2 of the two regions R1 and R2 divided by the center line C-C of the plunger unit body 65. In addition, a configuration in which the single row of plunger rows 641 or the straight line 741 is located in either the region R1 or the region R2 is required for various reasons such as low-volume production of multiple varieties.

As shown in the plan view of FIG. 5, the transmission drive shaft 63 of the transmission drive mechanism 60 includes a first transmission drive shaft 63a, a second transmission drive shaft 63b, and a third transmission drive shaft 63c. As shown in the plan view of FIG. 5, the first transmission drive shaft 63a, the The third transmission drive shaft 63c and the second transmission drive shaft 63b are located in the X-axis direction in this order.

As shown in the plan view of FIG. 5, in the transmission drive mechanism 60 of the first embodiment, the center 631c of the third transmission drive shaft 63c is located through the center 631a of the first transmission drive shaft 63a and the center of the second transmission drive shaft 63b. 631b is not on the line 632.

In addition, the transmission drive shaft 63 of the transmission drive mechanism 60 is not limited to the configuration having three transmission drive shafts of the first transmission drive shaft 63a, the second transmission drive shaft 63b, and the third transmission drive shaft 63c as described above, but it must There are more than three transmission drive shafts. Furthermore, three or more conveying drive shafts constituting the conveying drive shaft 63 are configured to maintain synchronization. In order to keep three or more transmission drive shafts in a synchronized manner, it may be configured to use power transmission components such as belts, pulleys, chains, sprockets, or gears, and three or more A single servo motor linkage common to the transmission drive shaft.

Hereinafter, referring to FIGS. 6 to 12, an example of a method of manufacturing a resin molded product using the resin molding apparatus of Embodiment 1, that is, the method of manufacturing a resin molded product of Embodiment 1, will be described. Fig. 6 shows a flowchart of a method of manufacturing a resin molded product according to the first embodiment. As shown in FIG. 6, the method of manufacturing a resin molded product of Embodiment 1 includes: a step (S10) of placing a molded object between a first mold 10 and a second mold 20; and combining the first mold 10 and the second mold 20 The step of closing the mold (S20); the step of resin molding the molded object (S30); and the step of opening the first mold 10 and the second mold 20 (S40). Hereinafter, each step will be described in more detail.

First, as shown in the schematic partial cross-sectional view of FIG. 7, a step of placing a molded object between the first mold 10 and the second mold 20 (S10) is performed. In the example shown in FIG. 7, the molded object 1 is set in the recess 21 of the second mold 20. As the molded object 1, for example, a semiconductor wafer mounted on a lead frame or the like can be used.

FIG. 8 shows a schematic plan view of an example of the second mold 20 used in the first embodiment. As shown in FIG. 8, the second recess 21 of the second mold 20 is provided only on one side of the tank 22 which is also a passage through which the plunger 64 moves. In addition, in the example shown in FIG. 8, the shape of the 2nd recessed part 21 is rectangular, and the shape of the tank 22 is circular, but it is not limited to these shapes.

Next, as shown in the schematic partial cross-sectional view of Fig. 9, a step of clamping the first mold 10 and the second mold 20 (S20) is performed. For the clamping of the first mold 10 and the second mold 20, for example, the movable platen 300 can be raised by the mold clamping mechanism 600, and the second mold 20 can be moved relative to the fixed first mold 10. The second die 20 is stamped. Furthermore, the clamping of the first mold 10 and the second mold 20 can also be performed by moving the first mold 10 relative to the fixed second mold 20, or by making the first mold 10 and the second mold 20 Both move to proceed.

Next, as shown in the schematic partial cross-sectional view of FIG. 10, a step of resin molding of the molded object 1 is performed (S30). The resin molding of the molded object 1 can be performed as follows, for example. First, the transport drive mechanism 60 of Embodiment 1 shown in FIGS. 4 and 5 raises the plunger unit 61 via the plunger unit support plate 62. Thereby, the plunger 64 rises, and the resin supplied into the tank 22 is extruded to the outside of the tank 22. Next, the resin extruded to the outside of the tank 22 is melted and accumulated in the collecting part 12. Take over Then, the molten resin is transferred into the cavity 90 including the concave portion 11 of the first mold 10 and the concave portion 21 of the second mold 20. Thereafter, the molded object 1 and the like are sealed by curing the resin, thereby performing resin molding of the molded object 1.

11 and 12 show schematic enlarged partial cross-sectional views illustrating the transfer of the resin 70 into the cavity 90 by the movement of the plunger 64 in the resin molding apparatus of the first embodiment. As shown in FIG. 11, after the step (S10) of setting the molded object 1 and before the step (S20) of clamping the mold, a solid resin 70a is placed in the tank 22, and the plunger 64 is located below the solid resin 70a .

In the subsequent step (S30) of resin molding of the molded object 1, as shown in FIG. 12, the plunger 64 extrudes the solid resin 70a in the tank 22 toward the collecting part 12 of the first mold 10, thereby The solid resin 70 a is melted by a heating plate (not shown) of the first mold 10, and the melted resin 70 is accumulated in the collection part 12. After that, the melted resin 70 passes through the resin passage 14 and is transferred to the molding target 1 in the cavity 90 by the pressure generated by the movement of the plunger 64. After that, the molten resin 70 is solidified, and the resin molding of the molded object 1 is completed.

Thereafter, as shown in the flowchart of FIG. 6, a step of opening the first mold 10 and the second mold 20 (S40) is performed. The mold opening of the first mold 10 and the second mold 20 can be performed as follows, for example. First, the transport drive mechanism 60 of the first embodiment lowers the plunger unit 61 via the plunger unit support plate 62. Next, the movable platen 300 is lowered by the mold clamping mechanism 600, the second mold 20 is moved relative to the fixed first mold 10, and the pressing of the first mold 10 and the second mold 20 is released. In addition, the opening of the first mold 10 and the second mold 20 can also be achieved by moving the first mold 10 relative to the fixed second mold 20 It can also be performed by moving both the first mold 10 and the second mold 20. Finally, the resin molded product is taken out from the resin molding device to the outside. Based on the above, the production of the resin molded product by the method of manufacturing the resin molded product of the first embodiment is completed.

FIG. 13 shows a schematic side view of a conveying drive mechanism 60a based on a comparative example of the prior art. FIG. 14 shows a schematic plan view of the conveying drive mechanism 60a of the comparative example. FIG. 14 is a schematic plan view when the conveying drive mechanism 60 a of the comparative example shown in FIG. 13 is viewed from the front end of the plunger 64.

As shown in the plan view of FIG. 14, the transmission drive mechanism 60a of the comparative example is characterized in that there is no third transmission drive shaft 63c, and the center line CC that halves the width of the plunger unit body 65 in the Y-axis direction, It coincides with a straight line 632 passing through the center 631a of the first transmission drive shaft 63a and the center 631b of the second transmission drive shaft 63b. In addition, the center 631a of the first transmission drive shaft 63a and the center 631b of the second transmission drive shaft 63b are located in the region R5, which is a region inside the plunger unit body 65 in the X-axis direction.

In the resin molding apparatus of the first embodiment, when the conveying drive mechanism 60a of the comparative example is used instead of the conveying drive mechanism 60 of the first embodiment, the plunger unit 61 moves toward the plunger during the lifting operation of the plunger unit 61 Row 641 tilts sideways, so that stable lifting motion cannot be performed sometimes.

Therefore, the inventors of the present invention have conducted intensive research and found that by setting it as the following configuration, for example, as shown in the plan view of FIG. 5, a third transmission drive shaft 63a and a second transmission drive shaft 63b are provided between the Transmission drive shaft 63c, the third transmission drive The center 631c of the moving shaft 63c is located outside of the straight line 632 passing through the center 631a of the first transmission drive shaft 63a and the center 631b of the second transmission drive shaft 63b, which can restrain the plunger 61 from moving toward The plunger row 641 is tilted sideways to realize the stable lifting motion of the plunger unit 61, thereby completing the conveying drive mechanism 60 of the first embodiment.

In addition, in order to achieve a more stable lifting action of the plunger unit 61, as shown in the plan view of FIG. 5, the center 631c of the third transmission drive shaft 63c can be located on the plunger unit body 65 divided by the center line CC. The single row of the plunger row 641 of the two areas is located in the region R1, and the center 631a of the first transmission drive shaft 63a and the center 631b of the second transmission drive shaft 63b are located on the plunger unit body 65 by the center line CC. Among the two divided regions, a region R2 where a single row of plunger rows 641 does not exist.

However, it is also possible to make the center 631a of the first transmission drive shaft 63a, the center 631b of the second transmission drive shaft 63b, and the center 631c of the third transmission drive shaft 63c all be located only in any one of the area R1 or the area R2 to realize the column Stable lifting action of the plug unit 61.

In addition, in order to achieve a more stable lifting action of the plunger unit 61, as shown in the plan view of FIG. 5, the center 631a of the first transmission drive shaft 63a may be located at one of the plunger unit bodies 65 in the X-axis direction. The outer area is the area R3.

In addition, in order to achieve a more stable lifting action of the plunger unit 61, as shown in the plan view of FIG. 5, the center 631b of the second transmission drive shaft 63b may be located at the other of the plunger unit body 65 in the X-axis direction. The outer area is area R4.

In addition, in order to achieve a more stable lifting action of the plunger unit 61, as shown in the plan view of FIG. 5, the center 631c of the third transmission drive shaft 63c may be located in the inner area of the plunger unit body 65 in the X-axis direction. Namely area R5.

In addition, in the above, the case of using a forming mold configured so that the cavity 90 is located only on one side of the plunger 64 has been described, but a mold configured such that the cavity 90 is located on both sides of the plunger 64 may also be used. For example, a molding die as shown in the schematic plan view of FIG. 15.

<Embodiment 2>

FIG. 16 shows a schematic side view of the conveying drive mechanism 60 of the second embodiment. FIG. 17 shows a schematic plan view of the conveying drive mechanism 60 of the second embodiment. FIG. 17 is a schematic plan view of the conveying drive mechanism 60 of the second embodiment shown in FIG. 16 when viewed from the front end of the plunger 64.

As shown in the plan view of FIG. 17, the conveying drive mechanism 60 of the second embodiment is characterized by including plural rows of plunger rows 643. The multi-row plunger row 643 is formed by the single-row plunger row 641 and the single-row plunger row 642 arranged in the Y-axis direction. The single plunger row 641 includes a plurality of plungers 64a, and the single plunger row 642 includes a plurality of plungers 64b. The single row of plunger rows 641 and the single row of plunger rows 642 respectively extend in the X-axis direction.

As shown in the plan view of FIG. 17, in the transmission driving mechanism 60 of the second embodiment, a single row of plunger rows 641 is located in one of the two regions R1 and R2 divided by the center line CC of the plunger unit body 65 In region R1, a single row of plungers 642 is located in another region R2. In addition, more of the plunger rows 641 that make up a single row A straight line 741a extending in the X-axis direction of each front end 740a of each plunger 64a is located in the region R1, passing through each front end 740b of the plurality of plungers 64b constituting a single row of plunger rows 642 and extending in the X-axis direction 741b is located in area R2.

Therefore, it can be considered that in the second embodiment, compared with the case of the first embodiment, the plunger unit 61 is less likely to fall during the lifting operation of the plunger unit 61. However, in the transmission drive mechanism 60 of the second embodiment, as shown in the plan view of FIG. 17, the center 631c of the third transmission drive shaft 63c is located through the center 631a of the first transmission drive shaft 63a and the second transmission drive shaft 63b. In areas other than the center 631b of the center 631b on the straight line 632, compared with the case of using the transmission drive mechanism 60a of the comparative example shown in FIGS. 13 and 14, the plunger unit 61 can also be stably raised and lowered.

Furthermore, in the transmission drive mechanism 60 of the second embodiment, as shown in the plan view of FIG. 17, the center 631c of the third transmission drive shaft 63c is located in the region R1, the center 631a of the first transmission drive shaft 63a and the second transmission drive The center 631b of the shaft 63b is located in the region R2.

Of course, the configuration of the multiple rows of plunger rows 643 is not limited to the configuration shown in the plan view of FIG. 17. For example, the multiple rows of plunger rows 643 may also be arranged in the Y-axis direction and more than three rows of single row plunger rows 643. And constitute. In addition, the multi-row plunger rows 643 of the second embodiment and the single-row plunger rows 641 of the first embodiment may be configured to be interchangeable.

The description of the second embodiment other than the above is the same as that of the first embodiment, so the description is omitted.

<Embodiment 3>

FIG. 18 shows a schematic plan view of the conveying drive mechanism 60 of the third embodiment. Fig. 18 shows a schematic plan view of the conveying drive mechanism 60 of the third embodiment viewed from the tip of the plunger. In addition, in FIG. 18, for convenience of description, the description of a plurality of plungers and a plunger row including the plurality of plungers is omitted.

As shown in the plan view of FIG. 18, the transmission drive mechanism 60 of the third embodiment is characterized in that the center 631a of the first transmission drive shaft 63a and the center 631b of the second transmission drive shaft 63b are located from the center axis of the plunger unit body 65 One of the two regions R1 in the Y-axis direction divided by CC and one region R1 of the region R2, the center 631c of the third transmission drive shaft 63c is located in the other region R2.

As shown in the plan view of FIG. 18, in the transmission drive mechanism 60 of the third embodiment, the center 631c of the third transmission drive shaft 63c is also located between the center 631a of the first transmission drive shaft 63a and the second transmission drive shaft 63b. The center 631b is not on the straight line 632. Therefore, also in the conveying drive mechanism 60 of the third embodiment, stable lifting and lowering operations of the plunger unit 61 can be realized.

The description of the third embodiment other than the above is the same as the first and second embodiments, so the description is omitted.

<Embodiment 4>

Fig. 19 shows a schematic plan view of the conveying drive mechanism 60 of the fourth embodiment. Fig. 19 is a schematic plan view of the conveying drive mechanism 60 of the fourth embodiment viewed from the tip of the plunger. In addition, in FIG. 19, for convenience of description, the description of a plurality of plungers and a plunger row including the plurality of plungers is also omitted.

As shown in the plan view of FIG. 19, the transmission drive mechanism of the fourth embodiment 60 is characterized by further comprising a fourth transmission drive shaft 63d located between the first transmission drive shaft 63a and the second transmission drive shaft 63b.

As shown in the plan view of FIG. 19, in the transmission drive mechanism 60 of the fourth embodiment, the center 631c of the third transmission drive shaft 63c and the center 631d of the fourth transmission drive shaft 63d are located at the center passing through the first transmission drive shaft 63a 631a and the center 631b of the second transmission drive shaft 63b other than those on the straight line 632. Therefore, also in the conveying drive mechanism 60 of the fourth embodiment, a stable lifting operation of the plunger unit 61 can be realized.

In addition, in order to achieve a more stable lifting movement of the plunger unit 61, as shown in the plan view of FIG. 19, the following configuration may be adopted: passing through the center 631a of the first transmission drive shaft 63a and the center of the second transmission drive shaft 63b The straight line 632 of 631b crosses the straight line 633 passing through the center 631c of the third transmission drive shaft 63c and the center 631d of the fourth transmission drive shaft 63d.

In addition, in order to achieve a more stable lifting action of the plunger unit 61, as shown in the plan view of FIG. 19, the center 631d of the fourth transmission drive shaft 63d is located in the inner region R5 of the plunger unit body 65 in the X-axis direction. .

Furthermore, as shown in the plan view of FIG. 19, in the transmission drive mechanism 60 of the fourth embodiment, the center 631b of the second transmission drive shaft 63b and the center 631d of the fourth transmission drive shaft 63d are located in the region R1, and the first transmission drive The center 631a of the shaft 63a and the center 631c of the third transmission drive shaft 63c are located in the region R2.

The description of Embodiment 4 other than the above is the same as that of Embodiment 1 to Embodiment 3, so the description is omitted.

<Embodiment 5>

Fig. 20 shows a schematic plan view of the conveying drive mechanism 60 of the fifth embodiment. Fig. 20 is a schematic plan view of the conveying drive mechanism 60 of the fifth embodiment when viewed from the tip of the plunger. In addition, in FIG. 20, for convenience of description, the description of a plurality of plungers and a plunger row including the plurality of plungers is also omitted.

As shown in the plan view of FIG. 20, the conveying drive mechanism 60 of the fifth embodiment is characterized in that it also includes a fourth conveying drive shaft 63d located between the first conveying drive shaft 63a and the second conveying drive shaft 63b.

As shown in the plan view of FIG. 20, in the transmission drive mechanism 60 of the fifth embodiment, the center 631c of the third transmission drive shaft 63c and the center 631d of the fourth transmission drive shaft 63d are located at the center passing through the first transmission drive shaft 63a 631a and the center 631b of the second transmission drive shaft 63b other than those on the straight line 632. Therefore, also in the conveying drive mechanism 60 of the fourth embodiment, a stable lifting operation of the plunger unit 61 can be realized.

Furthermore, as shown in the plan view of FIG. 20, in the transmission drive mechanism 60 of the fifth embodiment, the center 631a of the first transmission drive shaft 63a and the center 631c of the third transmission drive shaft 63c are located in the region R1, and the second transmission drive The center 631b of the shaft 63b and the center 631d of the fourth transmission drive shaft 63d are located in the region R2.

The description of the fifth embodiment other than the above is the same as the first to the fourth embodiment, so the description is omitted.

The embodiment has been described as described above, but it is also planned from the beginning to appropriately combine the respective components of the embodiment.

It should be considered that the embodiment disclosed this time is an illustration in all aspects and is not a limitation. The scope of the present invention is shown not by the above description but by the scope of the patent application, and is intended to include the meaning and all changes within the scope equivalent to the scope of the patent application.

60: Transmission drive mechanism

62: Plunger unit support plate

63a: The first transmission drive shaft

63b: second transmission drive shaft

63c: Third transmission drive shaft

64: Plunger

65: Plunger unit

631a, 631b, 631c: center

632, 741: straight line

641: Plunger Row

740: front end

R1~R5: area

Claims (19)

A transmission drive mechanism includes: a transmission drive shaft; and a plunger unit on the transmission drive shaft. The transmission drive shaft includes at least: a first transmission drive shaft, a second transmission drive shaft, and a third transmission drive shaft. The plunger unit includes a plurality of plungers and a plunger unit body, the plurality of plungers constitute a plunger row extending in a first direction, and each front end of the plurality of plungers is located on the plunger unit body Externally, the first transmission drive shaft, the third transmission drive shaft, and the second transmission drive shaft are located in the first direction in this order, in a plan view viewed from the front end of the plunger Wherein, the center of the third transmission drive shaft is located at a location other than a straight line passing through the center of the first transmission drive shaft and the center of the second transmission drive shaft. The transmission driving mechanism described in the first item of the scope of patent application, wherein the plunger row is a single row or multiple rows. In the transmission drive mechanism described in claim 2, wherein the single row of plunger rows and the multiple rows of plunger rows are configured to be interchangeable. The transmission drive mechanism described in the scope of patent application 2, wherein the plunger row is the single row, and in the plan view, the plunger row is located at a second direction different from the first direction. The width of the plunger unit body in the direction of the halves of the center line The two divided areas are the first area of the first area and the second area. The transmission drive mechanism according to claim 4, wherein in the plan view, the center of the third transmission drive shaft is located in the first area, and the first transmission drive shaft The center and the center of the second transmission drive shaft are located in the second area. The transmission drive mechanism described in the scope of patent application, wherein the plunger rows are the multiple rows, and in the plan view, the plunger rows are arranged in a second direction different from the first direction. In the direction, the multiple rows are formed. The conveying drive mechanism described in the scope of patent application, wherein a part of the plunger rows constituting the plurality of rows is located by dividing the width of the plunger unit body in the second direction into two halves The two regions divided by the center line are the first region of the first region and the second region, and the other part of the plunger row constituting the multiple rows is located in the second region. The transmission drive mechanism according to the 7th patent application, wherein in the plan view, the center of the third transmission drive shaft is located in the first area, and the first transmission drive shaft The center and the center of the second transmission drive shaft are located in the second area. The transmission drive mechanism according to claim 1, wherein in the plan view, the center of the first transmission drive shaft is located in one of the plunger unit bodies in the first direction Outer area. The transmission drive mechanism described in item 9 of the scope of patent application, wherein In the plan view, the center of the second transmission drive shaft is located in the other outer region of the plunger unit body in the first direction. The transmission drive mechanism described in claim 9, wherein in the plan view, the center of the third transmission drive shaft is located on the inner side of the plunger unit body in the first direction area. The transmission drive mechanism described in item 1 of the scope of patent application further includes: a fourth transmission drive shaft, located between the first transmission drive shaft and the second transmission drive shaft, in the plan view, so The center of the fourth transmission drive shaft is located at a location other than the straight line passing through the center of the first transmission drive shaft and the center of the second transmission drive shaft. The transmission drive mechanism according to claim 12, wherein in the plan view, the center of the first transmission drive shaft and the center of the second transmission drive shaft The straight line crosses the straight line passing through the center of the third transmission drive shaft and the center of the fourth transmission drive shaft. The transmission drive mechanism according to claim 12, wherein in the plan view, the center of the fourth transmission drive shaft is located on the inner side of the plunger unit body in the first direction area. The transmission drive mechanism described in any one of items 1 to 14 of the scope of patent application further includes a plunger between the transmission drive shaft and the plunger unit Unit support plate. A resin molding device, comprising: a conveying drive mechanism, a forming mold, and a mold clamping mechanism as described in any one of items 1 to 15 in the scope of the patent application, the forming mold is configured to be able to be driven by the conveying drive mechanism The plunger transfers the resin to the cavity of the molding die, and the mold clamping mechanism is configured to be capable of clamping the molding mold. In the resin molding apparatus described in claim 16, wherein the cavity is configured to be located only on one side of the plunger. The resin molding apparatus described in the 16th patent application, wherein the mold cavity is configured to be located on both sides of the plunger. A method of manufacturing a resin molded product is a method of manufacturing a resin molded product using the resin molding device described in any one of the 16th to 18th patent applications, the method of manufacturing the resin molded product includes: The step of setting the molding die with a molding object; the step of closing the molding die; the step of resin molding the molding object; and the step of opening the molding die.

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