Resin sealing device

Abstract

A resin sealing device capable of collectively replacing a plurality of containers of a liquid resin to be ejected. The resin sealing device (1) includes a resin supply module (2) that supplies a liquid resin from a resin supply port (54) with respect to a plurality of tanks (64) provided to a molding die (60) of a press module (6). The resin supply module (2) includes a container unit (40) capable of being collectively replaced and a piping member (50) that supplies the liquid resin from the container unit (40) to the resin supply port (54). The container unit (40) includes a plurality of containers (44) capable of ejecting the liquid resin and a holder (43) that holds the plurality of containers. The container unit (40) is configured to be capable of collectively connecting and collectively disconnecting the piping member (50) at ejection ports (45) of the plurality of containers (44), respectively.

Description

Technical Field

[0001] This invention relates to a resin sealing device using liquid resin. Background Technology

[0002] Apparatus for transfer molding using liquid resin is known. For example, Patent Document 1 discloses a resin molding apparatus comprising: a pressing device for transfer molding; and a resin supply device for supplying liquid resin to a container of the pressing device. The resin supply device includes the same number of syringes as the container.

[0003] [Existing Technical Documents]

[0004] [Patent Literature]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2012-101517 Summary of the Invention

[0006] [The problem the invention aims to solve]

[0007] As the resin adheres to the flow path from the syringe towards the can, the pressure loss gradually changes during the molding process. Assuming a structure that dispenses liquid resin from a single or few syringes to multiple cans, the amount of resin supplied to the cans can easily deviate due to insufficient supply in the flow path with a higher pressure loss than others, or excessive supply in the flow path with a lower pressure loss than others.

[0008] If the resin supply device disclosed in Patent Document 1 is used, the same number of syringes as the tanks are used, thus allowing liquid resin to be supplied equally to multiple tanks. On the other hand, the resin supply device disclosed in Patent Document 1 uses multiple syringes, so in the replenishment operation of adding liquid resin to the resin supply device, the operator must individually fill each syringe with liquid resin. This replenishment operation takes time, the resin molding device is stopped for a longer period, and therefore productivity is reduced.

[0009] Therefore, the object of the present invention is to provide a resin sealing device that allows for the uniform replacement of multiple containers that dispense liquid resin.

[0010] [Technical means to solve the problem]

[0011] One aspect of the resin sealing device of the present invention is a resin sealing device for sealing a workpiece with resin. The resin sealing device includes a resin supply module that supplies liquid resin from an equal number of resin supply ports to multiple containers disposed in a molding die of a pressing module that clamps, pressurizes, and molds the workpiece. The resin supply module includes: a container unit that can be uniformly replaced; and piping components that supply liquid resin from the container unit to the resin supply ports. The container unit includes: multiple containers capable of spraying liquid resin; and a holder for holding the multiple containers. The device is configured such that the piping components can be uniformly connected to and disconnected from the respective spray outlets of the multiple containers.

[0012] Based on this configuration, multiple containers held in a state relative to the retainer of the container unit can be uniformly connected to / disconnected from the piping components, allowing multiple containers to be removed from each container unit. For example, by pre-preparing container units filled with liquid resin and replacing them with empty container units, replenishment work can be performed quickly. During replenishment work, the downtime of the resin sealing device is shortened, increasing productivity. Furthermore, since liquid resin can be filled into each container while it is still detached from the resin sealing device, the operator does not need to squat down or adopt a restrained posture consistent with the device. This improves workability and reduces the operator's workload.

[0013] In the aforementioned configuration, multiple tanks and the same number of resin supply ports may be arranged in one or two columns, and the arrangement of multiple containers may be the same as the arrangement of the resin supply ports.

[0014] Based on this configuration, it is easy to design each flow path from the spray outlet to the resin supply port to be of equal length. However, even if the arrangement of multiple containers and multiple resin supply ports is different, it is still possible to design each flow path to be of equal length, and the arrangement of containers is not limited to the same arrangement as the arrangement of resin supply ports.

[0015] In the aforementioned configuration, it may also include a container housing, which is configured to allow the container unit to be detached and reassembled by sliding the container unit along the arrangement direction of the plurality of containers.

[0016] Based on this configuration, the container unit can be easily removed from the container housing, resulting in excellent workability.

[0017] In the aforementioned configuration, it may also include a lifting mechanism that allows the container housing and the pipeline components to be raised and lowered separately, configured to connect multiple containers and pipeline components together by raising the container housing and / or lowering the pipeline components, and configured to disconnect multiple containers and pipeline components together by lowering the container housing and / or raising the pipeline components.

[0018] Based on this configuration, the distance between the container housing and the piping components can be freely adjusted. Therefore, the flow path can be uniformly connected by bringing the two closer together, and the flow path can be uniformly disconnected by separating the two.

[0019] In the aforementioned configuration, it may also include two pressing modules, which are arranged with a gap between them, and the resin supply module is configured to be sandwiched between the two pressing modules.

[0020] Based on this configuration, the resin supply module is positioned on the shortest path connecting the two pressing modules, thus minimizing the time required for the resin supply port to travel to supply liquid resin to the tank of the other pressing module after supplying liquid resin to the tank of one pressing module. This allows the resin sealing device to operate efficiently, improving productivity.

[0021] [The effects of the invention]

[0022] According to the present invention, a resin sealing device is provided that can uniformly replace multiple containers that spray liquid resin. Attached Figure Description

[0023] Figure 1 This is a plan view illustrating an example of a resin sealing device according to an embodiment of the present invention.

[0024] Figure 2 It is an enlarged representation Figure 1 The diagram shows the resin supply module and the pressing module.

[0025] Figure 3 It is observed from the operator's side. Figure 2 The side view of the compression module shown.

[0026] Figure 4 This is a side view illustrating the operation of the resin supply module in this embodiment moving between multiple pressing modules to supply liquid resin.

[0027] Figure 5 Is with Figure 4 A continuous diagram, and a side view illustrating the operation of the resin supply module.

[0028] Figure 6 Is with Figure 5 A continuous diagram, and a side view illustrating the operation of the resin supply module.

[0029] Figure 7 This is a perspective view showing an example of the resin supply module of this embodiment.

[0030] Figure 8 It is a partial representation Figure 7 The diagram shows a three-dimensional view of the container housing.

[0031] Figure 9 It means Figure 7 The diagram shows a cross-sectional view of the internal structure of the pipe housing.

[0032] [Explanation of Symbols]

[0033] 1: Resin sealing device

[0034] 2: Resin supply module

[0035] 3: Supply box

[0036] 4: Workpiece supply module

[0037] 5: Loader

[0038] 6, 6L, 6R: Compression modules

[0039] 7: Uninstaller

[0040] 8: Waste removal machine

[0041] 9: Workpiece storage module

[0042] 10: Storage box

[0043] 20: Base

[0044] 21: Entry and Exit Mechanisms

[0045] 22: Guide rail

[0046] 23: Slider

[0047] 24: Rotating mechanism

[0048] 25: Waste liquid cup

[0049] 30: Lifting mechanism

[0050] 31: Pillar

[0051] 32: First Lifting Unit

[0052] 33: Second Lifting Section

[0053] 34: Third Lifting Section

[0054] 35: Pipeline containment section

[0055] 36: Container Reception Department

[0056] 37: Plunger

[0057] 38: Temperature control mechanism

[0058] 40: Container Unit

[0059] 43: Holder

[0060] 44: Container

[0061] 45: Spray outlet

[0062] 50: Piping components

[0063] 54: Resin supply port

[0064] 55: Connector

[0065] 56: Pinch valve

[0066] 60: Molding mold (mold)

[0067] 61: Lower mold

[0068] 62: Upper mold

[0069] 63: Plunger

[0070] 64: Can

[0071] 65: Removal Pool

[0072] 66: Cavity

[0073] 70: Suppression mechanism

[0074] 71: Movable platform

[0075] 72: Fixed platform

[0076] 73: Pull rod

[0077] 74: Door Cover

[0078] 361: Guiding Shape Section

[0079] 431: Control Department

[0080] 611: Central Block

[0081] 612: Embedded Block

[0082] 613: Endblock

[0083] D: Arrangement direction

[0084] W, W': Workpiece Detailed Implementation

[0085] Preferred embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in the drawings, portions labeled with the same symbol have the same or identical structure. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Figure 1 This is a plan view showing an example of a resin sealing device 1 according to an embodiment of the present invention.

[0086] The resin sealing device 1 in this embodiment is a resin sealing device used to seal the workpiece W with resin, such as... Figure 1 As shown, it includes at least a resin supply module 2. In this embodiment, it may also include a workpiece supply module 4, a loader 5, a pressing module 6, an unloading machine 7, a waste removal machine (degater) 8, a workpiece storage module 9, etc., as arbitrary structures.

[0087] The workpiece supply module 4 removes the workpiece W, before resin sealing, from the supply magazine 3 and supplies it to the loader 5. The loader 5 transports the workpiece W supplied by the workpiece supply module 4 to the mold (molding mold) 60 of the pressing module 6. The pressing module 6 clamps the supplied workpiece W, applies pressure, and seals it with resin (molding).

[0088] The unloading machine 7 removes the resin-sealed workpiece W' from the mold 60 and transports it to the waste removal machine 8. The waste removal machine 8 separates the useless resin from the resin-sealed workpiece W'. The workpiece storage module 9 receives the workpiece W' from the waste removal machine 8 after the useless resin has been separated and stores it in the storage box 10.

[0089] Figure 2 It is an enlarged representation Figure 1 The diagram shows a plan view of the resin supply module 2 and the pressing module 6. Figure 2 As shown, at least one pressing module 6 is arranged around the resin supply module 2. In the illustrated example, the resin supply module 2 is configured to be held by two pressing modules 6L and 6R arranged at a distance from each other, and the guide rail 22, described later, is laid from one of the pressing modules 6L and 6R to the other.

[0090] The pressing module 6 seals the workpiece W with resin (molding) by using a plunger 63 to fill the cavity 66 with resin supplied from the cans 64 inside the mold 60 and then hardening it. In the illustrated example, the lower mold 61, which constitutes the lower half of the mold 60, includes a central block 611 disposed in the center, insert blocks 612 disposed to clamp the central block 611 from the left and right, and end blocks 613 surrounding the central block 611 and the insert blocks 612 from all four sides. The workpiece W is placed on the insert blocks 612. A plurality of cans 64 for receiving resin are provided on the central block 611. The structure of the mold 60 is not limited to the illustrated example, and various structures may be appropriately selected.

[0091] The resin supply module 2 supplies thermosetting liquid resin to multiple tanks 64 disposed in the mold 60. The liquid resin, for example, is a composition of silicone-based or epoxy-based resins, which, when cured by transfer molding or the like, exhibits excellent sealing properties. Figure 2 As shown, the resin supply module 2 includes the same number of resin supply ports 54 as the tank 64 of the mold 60.

[0092] To reduce the amount of useless resin removed by the waste remover 8, the arrangement of the multiple tanks 64 is preferably a multi-plunger structure in one or two rows. The resin supply module 2 includes a container unit 40 and a piping component 50 for supplying liquid resin from the container unit 40 to the resin supply port 54. The container unit 40 includes multiple containers 44 capable of spraying liquid resin.

[0093] To ensure that the lengths of the multiple piping components 50 are equal, the arrangement of the multiple containers 44 is preferably the same as the arrangement of the multiple resin supply ports 54. In the illustrated example, four containers 64 are arranged in a row at equal intervals along the length of the central block 611, and the same number of resin supply ports 54 are arranged in a row with the same spacing (center-to-center distance) as the containers 64. However, the arrangement of the containers 64 is not limited to the illustrated example; two rows, three rows, or more may be provided. Alternatively, they may be arranged in an alternating pattern.

[0094] Figure 3 It is observed from the operator's side. Figure 2 The side view of the pressing module 6 is shown. Figure 3 As shown, the pressing module 6 includes a mold 60 comprising a lower mold 61 and an upper mold 62, and a pressing mechanism 70 for opening and closing the mold 60. The pressing mechanism 70 includes a fixed platform 72, a movable platform 71 that can move in the vertical direction relative to the fixed platform 72, and a pull rod 73 for guiding and positioning the fixed platform 72 and the movable platform 71.

[0095] In the illustrated example, an upper mold 62 is mounted on a fixed platform 72, and a lower mold 61 is mounted on a movable platform 71. Alternatively, the lower mold 61 can be configured as the fixed side, and the upper mold 62 as the movable side. In the upper mold 62, a ferrule 65 for heating the resin is provided opposite to the can 64 of the lower mold 61, and a cavity 66 for molding the resin is provided opposite to the workpiece W. The cavity 66 communicates with the ferrule 65.

[0096] After the pressing module 6 clamps the workpiece W by closing the mold 60 through the pressing mechanism 70, the liquid resin in the tank 64 is squeezed into the scrap tank 65 by the plunger 63 and filled into the cavity 66. If the mold 60 is opened after the filled resin has hardened, the resin-sealed workpiece W' can be removed by the unloading machine 7 or the like. The resin-sealed workpiece W' can also be called a sealed product W'.

[0097] A heat-blocking shield 74 may also be provided between the resin supply module 2 and the pressing module 6. When the resin supply port 54 of the resin supply module 2 is located outside the mold 60, the shield 74 blocks the heat from the mold 60 and suppresses the temperature rise of the resin supply port 54.

[0098] The resin supply module 2 includes a forward / backward mechanism 21 and a rotating mechanism 24 for moving among multiple pressing modules 6. The forward / backward mechanism 21 includes: a guide rail 22 mounted on a frame-shaped base 20 that can be installed on the ground, such as in a factory; and a slider 23 that moves along the guide rail 22. The rotating mechanism 24 is mounted on the slider 23. The rotating mechanism 24 rotates about a vertical axis relative to the base 20. Alternatively, the rotating mechanism 24 can be mounted on the base 20, and the forward / backward mechanism 21 can be mounted on the rotating mechanism 24. The resin supply module 2 includes a lifting mechanism 30 fixed to the rotating mechanism 24.

[0099] Figures 4 to 6 This is a side view illustrating the operation of the resin supply module 2 in this embodiment moving between multiple pressing modules 6 to supply liquid resin. Figure 4 It shows Figure 3 The resin supply module 2 shown is moved toward the pressing module 6L on the left by the advance / retract mechanism 21. In the illustrated state, the resin supply port 54 located at the front end of the pipeline component 50 enters the mold 60 and is positioned directly above the corresponding tank 64. The plunger 37 (described later) is driven to loosen the clamping valve 56 holding the pipeline component 50, and liquid resin is dripped into each tank 64 from the resin supply port 54 corresponding to the tank 64.

[0100] Figure 5 It shows Figure 4 The illustrated support column 31 is rotated 180 degrees around its vertical axis via the rotating mechanism 24. The illustrated state represents the standby state where the resin supply port 54 is located outside the mold 60. At this time, the shutter 74 located between the resin supply module 2 and the pressing module 6 can also be closed. This helps to prevent the temperature from rising at the resin supply port 54. A waste liquid cup 25 for temporarily storing liquid resin can also be placed directly below the resin supply port 54. For example, when air enters the piping component 50, the air can be discharged into the waste liquid cup 25 by releasing waste liquid resin.

[0101] Figure 6 It shows Figure 5 The resin supply module 2 shown is moved toward the pressing module 6R on the right by the advance / retract mechanism 21. In the illustrated state, the resin supply port 54 enters the mold 60 and is located directly above the corresponding tank 64. Similar to the operation of supplying liquid resin to the tank 64 on the left, the plunger 37 (described later) is actuated to loosen the clamping valve 56 of the pipe clamping component 50, and liquid resin is dripped into each tank 64 from the resin supply port 54 corresponding to the tank 64.

[0102] Repeating the above steps, the resin supply module 2 supplies liquid resin to the tank 64 of the pressing module 6. Soon, the remaining amount of liquid resin in the container unit 40 decreases, requiring the resin supply module 2 to be stopped to replenish the liquid resin. One feature of the resin supply module 2 in this embodiment is that multiple containers 44 dispensing liquid resin can be replaced uniformly. (Refer to...) Figures 7 to 9 The structure related to the replacement of multiple containers 44 is described.

[0103] Figure 7 This is a perspective view showing an example of the resin supply module 2 in this embodiment. Figure 7 As shown, the lifting mechanism 30 includes a support column 31, a first lifting section 32, a second lifting section 33, and a third lifting section 34, each capable of lifting and lowering along the support column 31. Figure 9 As shown, a plurality of pipe components 50 are fixed to the first lifting section 32. The plurality of pipe components 50 are covered by the pipe receiving section 35. A container receiving section 36 for receiving container units 40 is fixed to the second lifting section 33. A plurality of plungers 37 are fixed to the third lifting section 34 from below, facing the container receiving section 36. The lifting mechanism 30 can individually raise and lower the pipe components 50 in the pipe receiving section 35, the container units 40 in the container receiving section 36, and the plurality of plungers 37.

[0104] Figure 8 It is a partial representation Figure 7 A perspective view of the container housing 36 shown. Figure 8 As shown, in addition to the plurality of containers 44, the container unit 40 also includes a holder 43 that holds the plurality of containers 44 in an arrangement. In the illustrated example, the six containers 44 are held on the holder 43 in a row.

[0105] Each container 44 is filled with liquid resin. A nozzle 45 for spraying liquid resin is provided at the front end of each container 44. Each container 44 includes an O-ring or other airtight component installed at the nozzle 45. With the container unit 40 installed in the container housing 36, each plunger 37 faces the corresponding container 44 from the side opposite to the nozzle 45. If the container 44 is pressed using the plunger 37, liquid resin can be sprayed from the nozzle 45 of each container 44.

[0106] The container unit 40 is configured to be detachable from the container receiving portion 36. In the illustrated example, the container unit 40 can slide along the direction D in which the plurality of containers 44 are arranged in a row. The container unit 40 can be installed in the container receiving portion 36 by holding the handle 431 provided on the holder 43, or the container unit 40 can be removed from the container receiving portion 36 by holding the handle 431 and pulling. For example, if a guide shape (rough guide) portion 361, which widens as it faces outward, is provided on the container receiving portion 36 to allow the container unit 40 to slide, the container receiving portion 36 and the container unit 40 can be easily aligned.

[0107] Figure 9 It means Figure 7 The diagram shows a cross-sectional view of the internal structure of the pipe housing 35. Each pipe component 50 includes a flexible tube. A resin supply port 54 is provided at the front end of each pipe component 50. In the illustrated example, a pinch valve 56 is provided at the resin supply port 54. The pinch valve 56 can adjust the flow rate supplied from the resin supply port 54 or close the flow path by pinching the tube constituting the pipe component 50 to narrow the flow path.

[0108] The resin supply module 2 may also include a temperature regulating mechanism 38, which maintains the liquid resin flowing within the resin supply module 2 at a predetermined temperature range. The temperature regulating mechanism 38 may be a heat exchanger that circulates a refrigerant such as air or water, or a thermoelectric conversion element such as a Peltier element.

[0109] The base end of the pipe component 50 has the same number of connectors 55 as the nozzles 45 of the container 44. Furthermore, the number of resin supply ports 54 may not be the same as the number of connectors 55. For example, the pipe component 50 may be branched into two, and twice the number of resin supply ports 54 with connectors 55 may be provided.

[0110] The connector 55 is configured to engage with an O-ring or similar component at the front end of the container 44. The retainer 43 is configured to hold the containers 44 in place, preventing any positional shift in their arrangement. The lifting mechanism 30 raises and lowers each container 44 and its corresponding connector 55, ensuring that their relative horizontal positions remain constant while their vertical distances change.

[0111] When the distance between the nozzles 45 of the plurality of containers 44 and the same number of connectors 55 is brought close by the raising of the container housing 36 and / or the lowering of the piping components 50, the connectors 55 directly above the nozzles 45 are inserted into the airtight components of each nozzle 45. Thus, the plurality of containers 44 and the plurality of piping components 50 can be connected uniformly.

[0112] Conversely, when the distance between the nozzles 45 of the multiple containers 44 and the same number of connectors 55 is increased by the descent of the container housing 36 and / or the rise of the piping components 50, the connectors 55 corresponding to the nozzles 45 are pulled out from the airtight components of each nozzle 45. Additionally, the plunger 37 is pulled out of the container 44. Thus, the connection between the multiple containers 44 and the multiple piping components 50 can be uniformly released.

[0113] According to the resin sealing device 1 of this embodiment configured as described above, multiple containers 44 held in the container unit 40 can be uniformly replaced using a container unit 40 that can be uniformly connected to and disconnected from multiple pipeline components 50. Therefore, the replenishment operation of liquid resin can be changed from internal replacement to external replacement, and the downtime of the resin sealing device 1 during replenishment operations can be shortened.

[0114] The embodiments described above are for ease of understanding of the present invention and are not intended to limit the scope of the invention. The elements, configurations, materials, conditions, shapes, and dimensions included in the embodiments are not limited to the examples and can be appropriately modified. Furthermore, the structures shown in different embodiments can be partially interchanged or combined with each other.

Claims

1. A resin sealing device for sealing a workpiece with resin, the resin sealing device comprising a resin supply module. The resin supply module supplies liquid resin from the same number of resin supply ports to multiple tanks in the molding die of the pressing module, which clamps, pressurizes, and molds the workpiece. The resin supply module includes: The container unit can be replaced uniformly. and Piping components supply liquid resin from the container unit to the resin supply port. The container unit includes: Multiple containers capable of spraying liquid resin; Holder, holding the plurality of containers; and The base end of the pipeline component is provided with the same number of connectors as the spray outlets of the plurality of containers. Furthermore, the system is configured such that the nozzles of each of the plurality of containers can be uniformly connected to the pipeline components and can be uniformly disconnected.

2. The resin sealing device according to claim 1, wherein, The plurality of tanks and the same number of resin supply ports are arranged in one or two rows. The arrangement of the plurality of containers is the same as the arrangement of the resin supply ports.

3. The resin sealing device according to claim 1 further includes a container housing. The container housing is configured to allow the container unit to be installed and removed by sliding it along the arrangement direction of the plurality of containers.

4. The resin sealing device according to claim 2 further includes a container housing. The container housing is configured to allow the container unit to be installed and removed by sliding it along the arrangement direction of the plurality of containers.

5. The resin sealing device according to claim 3 further includes a lifting mechanism. The lifting mechanism allows the container housing and the piping components to be raised and lowered separately. The system is configured such that the plurality of containers can be uniformly connected to the piping components by raising the container housing and / or lowering the piping components. The configuration allows for the unified disconnection of the plurality of containers from the piping components by lowering the container housing and / or raising the piping components.

6. The resin sealing device according to claim 4 further includes a lifting mechanism. The lifting mechanism allows the container housing and the piping components to be raised and lowered separately. The system is configured such that the plurality of containers can be uniformly connected to the piping components by raising the container housing and / or lowering the piping components. The configuration allows for the unified disconnection of the plurality of containers from the piping components by lowering the container housing and / or raising the piping components.

7. The resin sealing device according to any one of claims 1 to 6, further comprising two pressing modules, The two pressing modules are configured with a gap between them. The resin supply module is configured to be sandwiched between the two pressing modules.

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