Dust collecting device, resin molding device, and filter member

Abstract

To provide a dust collector which can collect dust by stable suction, a resin molding apparatus, and a filter member.SOLUTION: A dust collector according to the present invention can have a bag-like filter member installed which has an opening part and is formed of an air-permeable material which is, at least, partially air-permeable. The dust collector includes a housing which has a suction port and an exhaust port, a gas suction source which can suck air from the exhaust port, and an installation member which is arranged so as to cover the exhaust port inside the housing and has a plurality of ventilation holes. When the gas suction source is driven in a state where an opening part of the filter member is connected to the suction port and at least a part of the ventilation material is arranged on the installation member, gas flowing from the suction port is discharged from the exhaust port through the filter member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a dust collecting device, a resin molding device, and a filter member.

Background Art

[0002] Conventionally, resin molding devices have been equipped with a dust collecting device for collecting resin scraps and dust (hereinafter referred to as "dust, etc."). The dust collecting device is equipped with a filter for capturing the collected dust, etc. For example, the dust collecting device described in Patent Document 1 is equipped with a bag-shaped primary filter and a plate-shaped secondary filter.

[0003] In order to perform appropriate dust collection, it is necessary to replace the filter to which dust, etc. has adhered before it becomes clogged, and to clean the adhered filter when reusing the replaced filter. However, when the filter is replaced (removed), dust may scatter from the filter, contaminating the clean room in which the resin molding device is installed. The bag-shaped primary filter of the dust collecting device of Patent Document 1 can store dust inside the bag, so that the scattering of dust when the primary filter is removed can be suppressed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, this primary filter is suspended from an intake pipe inside the housing, and air is sucked by the intake pipe below the primary filter. Therefore, there is a possibility that the primary filter may move during suction or stick to the inside of the housing in an unstable shape, and there is a possibility that stable suction cannot be performed. As a result, the dust collecting function may deteriorate.

[0006] The present invention has been made to solve this problem, and an object thereof is to provide a dust collecting device, a resin molding device, and a filter member capable of performing dust collection by stable suction.

Means for Solving the Problems

[0007] The dust collecting device according to the present invention is a dust collecting device in which a bag-shaped filter member having an opening and formed of a breathable material at least in part can be installed, and includes a housing in which an intake port and an exhaust port are formed, a gas suction source capable of sucking air from the exhaust port, and an installation member disposed inside the housing so as to cover the exhaust port and having a plurality of ventilation holes. With the opening of the filter member connected to the intake port and at least a part of the breathable material disposed on the installation member, by driving the gas suction source, the gas flowing in from the intake port is configured to be discharged from the exhaust port through the filter member.

[0008] The resin molding device according to the present invention includes a resin molding module that performs resin molding and a dust collecting module having the same configuration as the above-described dust collecting device that collects dust in the resin molding module.

[0009] The filter member according to the present invention is a filter member installed in the above-described dust collecting device, and includes a filter main body having an opening at the upper part and formed in a bag shape. The bottom of the filter main body is formed by a substantially flat surface, and the filter main body is formed of a breathable material at least at the bottom.

Effects of the Invention

[0010] According to the present invention, dust collection can be performed by stable suction.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Mode for Carrying Out the Invention

[0012] Hereinafter, an embodiment of a resin molding apparatus according to the present invention will be described with reference to the drawings. This resin molding apparatus is provided with a dust collection module which is an embodiment of the dust collection apparatus according to the present invention. Each drawing may be schematically drawn with appropriate omissions or exaggerations of the subject for ease of understanding.

[0013] <1. Configuration of Resin Molding Apparatus> FIG. 1 is a schematic plan view of a resin molding apparatus 100 according to the present embodiment. This resin molding apparatus 100 is configured to perform resin molding (resin encapsulation) on a substrate (resin molding object) W to which electronic components such as semiconductor chips, resistor elements, capacitor elements, and resin-encapsulated electronic components (hereinafter, these will be collectively referred to as electronic components) are connected by transfer molding to manufacture a resin molded product. More specifically, after fixing the electronic components on one surface of the substrate W, this surface is encapsulated with resin. Thereafter, in some cases, after fixing the electronic components on the other surface of the substrate W, this surface is also encapsulated with resin. Thus, when encapsulating each surface of the substrate W with resin, the resin molding apparatus 100 according to the present embodiment is used, and the fixing of the electronic components to the substrate is performed by another apparatus.

[0014] Examples of the substrate W used here include semiconductor substrates such as silicon wafers, lead frames, printed wiring boards, metal substrates, resin substrates, glass substrates, ceramic substrates, and the like. The substrate W may be a carrier used for FOWLP (Fan Out Wafer Level Packaging) or FOPLP (Fan Out Panel Level Packaging). In the substrate W, wiring may already be provided or may not be provided.

[0015] As shown in Fig. 1, the resin molding apparatus 100 includes a substrate / resin material supply module A (hereinafter also simply referred to as "module A"), two resin molding modules B (hereinafter also simply referred to as "module B"), a substrate storage module C (hereinafter also simply referred to as "module C"), and a control unit 14. As the control unit, for example, a PLC (Programmable Logic Controller), a PC (Personal Computer), etc. can be used. The control unit 14 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), etc., and is configured to control each of modules A to C according to information processing. Hereinafter, each of modules A to C will be described in detail. Note that each of the modules is detachable and replaceable with respect to other modules. Also, in the resin molding apparatus 100, each of modules A to C can be increased or decreased.

[0016] <1-1. Module A> Module A is a module that supplies the substrate W before molding and the resin material P, and includes a substrate supply unit 42, an in-magazine 78, an alignment mechanism 70, and a resin supply mechanism 79. The substrate supply unit 42, the in-magazine 78, and the alignment mechanism 70 are arranged on the front side (the lower side in Fig. 1) of the guide G in module A. The substrate supply unit 42 pushes out the substrates W one by one from the in-magazine 78, which is a storage container that stores a plurality of substrates W at intervals in the vertical direction, and conveys them to the alignment mechanism 70. In the present embodiment, the substrate supply unit 42 pushes out the substrate W from the in-magazine 78 by an actuator and moves it to the alignment mechanism 70 arranged adjacent to the in-magazine 78. The alignment mechanism 70 has a rotating disk, and when the substrate W is placed thereon, the rotating disk is rotated to align the substrate W so as to be suitable for pickup by the loader 40. The resin supply mechanism 79 supplies the tablet-shaped resin material P for resin molding and arranges it in a state suitable for pickup by the loader 40.

[0017] <1-2. Module B> Each Module B is a module for molding a resin material (resin molding module), and has a molding section 5 for manufacturing a substrate W (resin molded product) that has been molded by transfer molding. The molding section 5 has an upper mold 52, a lower mold 51 facing the upper mold 52, a mold clamping mechanism 53, and a plunger (not shown). The lower mold 51 is configured to hold the substrate W on its upper surface and has a pot for accommodating the resin material P. On the other hand, the upper mold 52 has a concave cavity. The mold clamping mechanism 53 is configured to clamp the upper mold 52 and the lower mold 51 supplied with the substrate W and the resin material P. In this embodiment, a caul portion, a runner, and a gate are further formed in the upper mold 52, and the caul portion, the runner, and the gate constitute a resin flow path until the molten resin material P in the pot is extruded by the plunger and reaches the cavity.

[0018] <1-3. Module C> Module C is a module for removing and storing unnecessary resin from the molded substrate W. As shown in FIG. 1, Module C has a gate break mechanism 771 and an out magazine 772. The gate break mechanism 771 removes unnecessary resin from the molded substrate W. The out magazine 772 stores the molded substrate W from which the unnecessary resin has been removed.

[0019] <1-4. Loader and Unloader> In the resin molding apparatus 100 of the present embodiment, a guide G linearly arranged across modules A, B, and C is provided. The guide G is a rail-shaped member for running the loader 40 and the unloader 44. The guide G is arranged on the back side (the upper side in FIG. 1) of each module. The loader 40 is movable from module A to module B, picks up the substrate W and the resin material P in module A, transports them to module B, and supplies the substrate W and the resin material P to the lower mold 51. The unloader 44 is movable from module B to module C, picks up the molded substrate W in module B, transports it to module C, and delivers it to the gate break mechanism 771.

[0020] <2. Dust Collection Module> Next, the dust collection module will be described. As shown in FIG. 2, the dust collection module 200 is provided adjacent to module B and is connected to an intake pipe 50 that sucks the air around the molding part 5 in module B. Note that the intake pipe 50 may be further provided in modules A and C as well. Then, the air sucked by the intake pipe 50 passes through the dust collection module 200, and the filtered air is configured to be discharged to the outside of the dust collection module 200. Hereinafter, the dust collection module 200 will be described in detail.

[0021] FIG. 3 is a schematic configuration diagram of the dust collection module 200. As shown in FIG. 3, this dust collection module 200 includes a first housing 7 in which a bag-shaped filter member 300 is accommodated, a second housing 8 in which a sheet-shaped auxiliary filter member 80 is accommodated, and a third housing 9 in which a blower motor 91 is accommodated, and these three housings 7 to 9 are arranged adjacent to each other.

[0022] FIG. 4 is a cross-sectional view of the first housing 7 as seen from the front. As shown in FIG. 4, the first housing 7 is formed in a rectangular parallelepiped shape, and a part of the side surface can be opened and closed as a door (not shown). By opening the door, maintenance of the internal space, such as attachment of the filter member 300, can be performed. The end of the intake pipe 50 described above is attached to the upper wall portion 71 of the first housing 7. The end of the intake pipe 50 is formed in a cylindrical shape and extends downward from the upper wall portion 71. Then, as shown in FIG. 9 to be described later, the filter member 300 is attached to the lower end of the intake pipe 50. Thereby, dust, resin burrs, and other debris (hereinafter collectively referred to as resin pieces) sucked from module B through the intake pipe 50 are introduced into the first housing 7 and accumulate inside the filter member 300. Note that the intake pipe 50 attached to the first housing 7 corresponds to the intake port of the present invention.

[0023] On the other hand, a rectangular exhaust port 721 is formed in the bottom wall portion 72 of the first housing 7, and a rectangular plate-like installation member 73 is disposed so as to cover the exhaust port 721. A large number of ventilation holes are formed in the installation member 73, and the filter member 300 is installed on the installation member 73.

[0024] The installation member 73 is supported by a plurality of support portions 74 disposed on the bottom wall portion 72 of the first housing 7. More specifically, rectangular parallelepiped support portions 74 protruding upward are disposed at the four corners of the outer edge of the exhaust port 721 in the bottom wall portion 72, and the four corners of the installation member 73 are supported by these support portions 74. Thereby, a gap is formed between the installation member 73 and the bottom wall portion 72, and air can flow into this gap from the side of the installation member 73. Further, a dome-shaped (hemispherical) convex portion 75 is formed on the upper surface of the installation member 73, and a large number of ventilation holes are also formed in the convex portion 75.

[0025] An exhaust pipe 76 is attached to the lower surface of the bottom wall portion 72, and this exhaust pipe 76 is connected to the second housing 8. As shown in FIG. 3, the second housing 8 is formed in a rectangular parallelepiped shape with a small horizontal thickness, and the auxiliary filter member 81 described above is attached inside thereof. A known filter (for example, an HPEA filter) formed by folding a sheet material in a bellows shape is accommodated in the auxiliary filter member 81. By this auxiliary filter member 81, the inside of the second housing 8 is partitioned into two regions in the horizontal direction, that is, an upstream region 84 and a downstream region 85.

[0026] The above-described exhaust pipe 76 is connected to the upstream region 84. Therefore, the air discharged from the first housing 7 flows into the upstream region 84, passes through the auxiliary filter member 81, and flows into the downstream region 85. That is, the auxiliary filter member 81 captures dust and the like and purifies the air. The wall surface of the second housing 8 in the downstream region 85 is connected to the third housing 9, and the air in the downstream region 85 flows into the third housing 9.

[0027] As shown in FIG. 3, a blower motor (gas suction source) 91 is disposed inside the third housing 9, and by driving this, air can be sucked from module B through the first to third housings 7 to 9. The sucked air is discharged from an exhaust pipe 92 disposed at the upper part of the third housing 9.

[0028] <3. Filter Member> Next, the filter member will be described with reference to FIGS. 5 to 8. FIG. 5 is a side view of the filter member, FIG. 6 is a plan view of FIG. 5, FIG. 7 is a cross-sectional view showing the folds of the filter member, and FIG. 8 is a bottom view of the filter member. As shown in FIGS. 5 to 8, this filter member 300 has a bag-shaped filter body 31, a belt member 32 disposed on the outer surface of this filter body 31, and two support members 33 extending vertically.

[0029] The filter body 31 has a flat circular bottom 311. On the other hand, at the upper part of the filter body 31, a circular opening 312 with a smaller diameter than the bottom 311 is formed. The opening 312 is formed by folding and sewing the vicinity of the upper end opening of the filter body 31 inward, thereby forming a passage 314 through which the string-like member 34 passes around the opening 312. And a notch 313 communicating with the outside is formed in this passage 314, and both ends of the string-like member 34 are respectively drawn out from this notch 313 and extend to the outside. That is, the opening 312 of the filter body 31 has a closing structure like a drawstring bag, and when both ends of the string-like member 34 are pulled, the opening 312 is tightened and closed.

[0030] Also, on the outer peripheral surface of the filter body 31, below the string-like member 34, an annular elastic member 35 extending in the circumferential direction is attached. Thereby, the intake pipe 50 inserted from the opening 312 can be tightened. Note that the elastic member 35 can be formed of, for example, rubber.

[0031] On the outer surface of the filter body 31, a plurality of folds (pleats) 315 extending in the vertical direction are formed and arranged at predetermined intervals in the circumferential direction. As shown in FIG. 7, the folds 315 are formed by bending the filter body 31. Therefore, when the folds 315 expand, the volume of the filter body 31 increases.

[0032] As shown in FIG. 5, the belt member 32 is annularly formed so as to surround the filter body 31 in the vicinity of the middle in the vertical direction of the filter body 31. The circumferential length of the belt member 32 is formed slightly longer than the outer circumference of the filter body 31. On the other hand, each support member 33 is attached to the outer surface of the filter body 31 so as to connect the vicinity of the elastic member 35 and the vicinity of the peripheral edge of the bottom 311. Each support member 33 is formed in a strip shape and is arranged at positions shifted by about 180 degrees in the circumferential direction of the filter body 31. And by fixing the belt member 32 to these support members 33, the vertical position of the belt member 32 is held.

[0033] The material forming the filter body 31 is not particularly limited, but it can be formed of a known porous woven fabric, non-woven fabric, or other flexible material used as a filter material such as polyester. That is, any material that can capture resin pieces and allow air to flow through is acceptable. Also, the filter body 31 can be formed not only of one type of material but also of a plurality of materials. For example, since the periphery of the opening 312 of the filter body 31 is attached to the intake pipe 50, it can be formed of a resin material through which gas does not pass in consideration of strength. Therefore, in the filter body 31, portions other than the material having no air permeability are composed of the air-permeable material of the present invention.

[0034] <4. Operation of the dust collection module> Next, the operation of the dust collection module configured as described above will be described with reference to FIGS. 9 to 11. First, as shown in FIG. 9, the filter member 300 is installed in the first housing 7. That is, the door of the first housing 7 is opened, and the intake pipe 50 is inserted into the opening 312 of the filter member 300. Since the elastic member 35 is disposed at the peripheral edge of the opening 312, while stretching the elastic member 35, the opening 312 is expanded and the intake pipe 50 is inserted. Next, while adjusting the insertion length of the intake pipe 50 so that the bottom 311 of the filter body 31 contacts the upper surface of the installation member 73, the vertical position of the filter body 31 is adjusted. Thus, when the position of the filter body 31 is determined, an annular fixing member 98 is attached to and tightened on the outer peripheral surface of the filter body 31. As a result, the opening 312 of the filter body 31 is pressed against the outer peripheral surface of the intake pipe 50 by the fixing member 98. As a result, the intake pipe 50 and the filter body 31 are tightly fixed.

[0035] In this state, the vicinity of the center of the bottom 311 of the filter body 31 is pushed upward by the convex portion 75, deformed so as to protrude toward the inner space side, and a convex portion 318 is formed (see FIG. 11).

[0036] Subsequently, after closing the door of the first housing 7, the blower motor 91 is driven to suck air containing resin pieces from module B. As shown in FIG. 10, a part F1 of this air flows into the filter body 31 through the intake pipe 50 and is sucked from the bottom 311 of the filter body 31 toward the exhaust pipe 76 through the installation member 73. In this process, as shown in FIG. 11, the resin pieces S accumulate at the bottom 311 of the filter body 31. At this time, the resin pieces S accumulate around the convex portion 318 formed on the bottom 311. Also, the resin pieces S that collide with the convex portion 318 roll from the convex portion 318 and accumulate around it.

[0037] As shown in FIG. 10, not only the air F1 passing through the inside of the filter member 300 but also the air F2 around the filter member 300 is sucked into the exhaust pipe 76. This is because a gap is formed between the installation member 73 and the exhaust port 721, and the air around the filter member 300 communicating with this gap is also sucked. Therefore, inside the first housing 7, the area around the filter member 300 becomes negative pressure, and thereby, the air flowing into the filter body 31 not only goes toward the bottom 311 (F1) but also flows out from the outer peripheral surface other than the bottom 311 to the outside from the filter member 300 (F2). Therefore, the resin pieces S are captured not only on the bottom 311 of the filter body 31 but also on the outer peripheral surface.

[0038] In this way, the air that has passed through the filter body 31 flows into the second housing 8 from the exhaust port 721 through the exhaust pipe 76 as shown in FIG. 3, and flows from the upstream region 84 to the downstream region 85 through the auxiliary filter member 81. At this time, almost no resin pieces remain in the air passing through the auxiliary filter member 81, but when a problem occurs such as damage to the filter member 300, the resin pieces are captured by the auxiliary filter member 81. Then, this air flows to the third housing 9 and is discharged from the exhaust pipe 92 to the outside of the dust collection module 200.

[0039] The filter member 300 is replaced periodically. In this case, open the door of the first housing 7, remove the fixing member 98, and then remove the filter member 300 from the intake pipe 50. Then, as shown in FIG. 12, by pulling the string-like member 34, the opening 312 can be easily closed, and it is possible to prevent the resin pieces from leaking from the filter member 300 to the outside. The filter member 300 processed in this way can be discarded as appropriate.

[0040] <5. Features> In the dust collection module 200 configured as described above, the following effects can be obtained.

[0041] (1) Since the filter main body 31 is formed in a bag shape, after capturing the resin pieces, if it is removed from the intake pipe 50, it can be discarded as it is. Therefore, it is possible to prevent the resin pieces from scattering when the filter member 300 is replaced. Also, at the time of replacement, it is only necessary to attach the opening 312 of the filter member 300 to the intake pipe 50 and place the bottom 311 on the installation member 73, so the replacement is also easy. Therefore, by using the filter member 300 according to the present embodiment, maintenance can be easily performed.

[0042] (2) In the present embodiment, the filter member 300 is arranged on the installation member 73 and suction is being performed. Therefore, since the installation direction (gravity direction) of the filter member 300 and the suction direction are the same, it is possible to suppress the movement of the filter member 300 in the first housing 7. As a result, it is possible to stably perform air suction and resin piece capture. In particular, since the filter member 300 of the present embodiment has a flat bottom 311, the filter member 300 can be stably arranged on the installation member 73.

[0043] (3) As shown in Fig. 10, since a gap is formed between the installation member 73 and the exhaust port 721, the sucked air F2 also flows in from this gap. Therefore, inside the first housing 7, since the periphery of the filter member 300 can be made into a negative pressure, air is discharged from the outer peripheral surface other than the bottom 311 of the filter body 31. As a result, the resin pieces can be captured not only at the bottom 311 of the filter body 31 but also on the outer peripheral surface. Therefore, the capture area of the resin pieces can be increased.

[0044] Also, at the initial stage of use of the filter member 300, since the suction force of the air from the bottom 311 is large, the resin pieces mainly accumulate at the bottom 311. However, even when the resin pieces are laminated and clogged at the bottom 311, since the resin pieces can be captured using the outer peripheral surface of the filter body 31, the operating time of the filter member 300 can be extended.

[0045] (4) Since the convex portion 75 is formed on the installation member 73, the bottom 311 of the filter body 31 is deformed so as to protrude toward the inner space side along this convex portion 75, assisting the suction, and the convex portion 318 is formed. For this reason, as shown in Fig. 11, the captured resin pieces S mainly accumulate around the convex portion 318 at the bottom 311 as described above. As a result, even if the periphery of the convex portion 318 is covered with the accumulated resin pieces S, since air can flow through the convex portion 318, it is possible to suppress the reduction of the filter function. Therefore, the operating time of the filter member 300 can be extended.

[0046] (5) Since the belt member 32 is provided so as to surround the outer periphery of the filter body 31, it is possible to hold the filter body 31 so that its shape does not collapse, such as when the filter body 31 bulges too much.

[0047] (6) Even if the filter function deteriorates due to the filter member 300 breaking or the like, since the auxiliary filter member 81 is provided, the resin pieces can be surely captured.

[0048] <6. Modification Example> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit thereof. For example, the following modifications are possible. Also, the gists of the following modification examples can be combined as appropriate.

[0049] (1) The structure of the filter body 31 is not particularly limited, and it is sufficient that at least a part thereof is formed of a breathable material and an opening 312 to which the intake pipe 50 can be attached is formed. Therefore, the string-like member 34, the elastic member 35, the fold 315, the support member 33, and the belt member 32 may be provided as appropriate according to need. Also, the shape of the filter body 31 is not particularly limited. For example, the bottom 311 does not necessarily have to be flat, and any shape that can be disposed on the installation member 73 is acceptable. In the filter body 31, it is sufficient that the portion disposed on the installation member 73 is formed of a breathable material.

[0050] (2) In the above embodiment, the convex portion 75 is formed on the installation member 73, but the shape of the convex portion 75 is not particularly limited as long as it is breathable and protrudes upward. For example, in addition to the dome shape (hemispherical shape) described above, various shapes such as a frustum of a cone shape (Fig. 13(a)), a conical shape (Fig. 13(b)), a columnar shape (Fig. 13(c)), a polygonal columnar shape, a polygonal pyramid shape, and a polygonal frustum shape can be used. However, in order to make it easy for the resin piece to roll on the bottom 311, it is preferable that the flat portion provided at the upper part is as small as possible. Note that the convex portion 75 is not necessarily required, but the inventor has confirmed that providing it can extend the operating time of the filter member 300 based on the principle described above. Also, in the above embodiment, the convex portion 75 is separately provided on the installation member 73, but the convex portion 75 may be formed by making a part of the installation member 73 into a convex shape.

[0051] (3) A concave portion into which the convex portion 75 of the installation member 73 fits can be formed in advance at the bottom 311 of the filter member 300. In this case, the shape of the concave portion is not particularly limited, but it is preferably made to match the shape of the convex portion 75 described above.

[0052] (4) In the above embodiment, a blower motor is used as the gas suction source, but it is not particularly limited as long as it can suck gas.

[0053] (5) In the first housing 7, it is sufficient that an intake pipe 50 as an intake port and an exhaust port 721 are formed, and an installation member 73 on which the filter member 300 is installed is provided. A gap between the installation member 73 and the exhaust port 721 is not necessarily required and may be provided as needed. However, if such a gap is provided, resin pieces can also be captured on the outer peripheral surface of the filter member 300 as described above.

[0054] (6) The auxiliary filter member 81 is not necessarily required and may be provided as needed. Note that the type of the auxiliary filter member is not particularly limited, and various forms of filters can be used.

[0055] (7) The resin molding apparatus according to the above embodiment is an apparatus for performing resin molding by the transfer molding method. However, the dust collecting apparatus of the present invention is also applicable to an apparatus for performing resin molding by the compression molding method. Therefore, the above-described modules A to C are an example of a resin molding apparatus and can be changed as appropriate.

[0056] (8) The filter member according to the present invention is not limited to the above-described dust collecting module 200 and can also be used in other dust collecting apparatuses.

Explanation of Reference Numerals

[0057] 7: First housing (housing) 31: Filter main body 311: Bottom 32: Belt member 34: String-like member 50: Intake pipe (intake port) 73: Installation member 75: Protrusion 81: Auxiliary filter member 100: Resin molding apparatus 200: Dust collecting module (dust collecting apparatus) 300: Filter member 31: Filter body 311: Bottom 312: Opening 315: Pleat 318: Protrusion 721: Exhaust port B: Resin molding module

Claims

1. A dust collecting device in which a bag-shaped filter member having an opening and formed of a breathable material at least in part can be installed, comprising: a housing having an air inlet formed at an upper part and an air outlet formed at a lower part; a gas suction source capable of sucking air from the air outlet; an installation member disposed substantially horizontally so as to cover the air outlet inside the housing and having a plurality of ventilation holes formed therein; and a gap is formed between the surface of the inner surface of the housing where the air outlet is formed and the installation member; with the opening of the filter member connected to the air inlet and at least a part of the breathable material disposed on the installation member, by driving the gas suction source, the gas flowing in from the air inlet is discharged from the air outlet through the bottom part installed on the installation member and the installation member in the filter member, thereby collecting dust near the bottom part, and air in the space outside the filter member is sucked into the gap, thereby creating a negative pressure around the filter member, whereby air flows out of the filter member from surfaces other than the bottom surface of the filter member, and dust collection is performed on surfaces other than the bottom surface. Dust collecting device.

2. The dust collecting device according to claim 1, further comprising an auxiliary filter member between the air outlet and the gas suction source.

3. The dust collecting device according to claim 1 or 2, wherein at least one convex portion having the ventilation holes is formed on the installation member.

4. A resin molding module for performing resin molding, and a dust collecting module having the same configuration as the dust collecting device according to any one of claims 1 to 3 for collecting dust in the resin molding module. Resin molding device.

5. A filter member installed in the dust collecting device according to any one of claims 1 to 3, comprising: a filter body having an opening at an upper part and formed in a bag shape; the bottom of the filter body being formed by a substantially flat surface; the filter body being formed of a breathable material at least at the bottom.

6. The filter member according to claim 5, wherein a plurality of folds extending in the vertical direction are formed on the outer peripheral surface of the filter body between the bottom and the opening.

7. The filter member according to claim 5 or 6, further comprising an annular belt member for holding the shape of the filter member outside the outer peripheral surface of the filter body.

8. The filter member according to any one of claims 5 to 7, having a closing structure in which a string-like member is provided along the periphery of the opening, and the opening is closed by pulling the string-like member.

9. A filter member installed in the dust collector according to claim 3, comprising a filter body having an opening at the upper part and formed in a bag shape with a breathable material, wherein the bottom of the filter body is formed by a substantially flat surface, wherein at least the bottom of the filter body is formed of a breathable material, and a recess into which the convex portion of the installation member fits is formed in the substantially flat surface.

Images