Floating minute substance removing apparatus and method of using the same

Abstract

To provide a floating fine substance removing apparatus capable of improving a manufacturing environment or a working environment by removing a floating fine substance generated from a mold, and a method for using the same.SOLUTION: The apparatus includes a blowing means 30 disposed on one side of the T-die 20 for blowing air from the one side of the T-die 20 in a lateral direction of the other side of the T-die 20 to change a flow of gas generated from the T-die 20, i.e., the floating minute material V, in the lateral direction, and a suction means 40 disposed on the other side of the T-die 20 for sucking air mixed with the floating minute material V. Since the floating fine material V is blown off in the lateral direction by wind to be sucked by the suction box 41 of the suction means 40, the floating fine material V is not stagnated or floated in the periphery of the T-die 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an apparatus for removing suspended fine particles that can improve the manufacturing environment of resin molded products, and a method for using the same. [Background technology]

[0002] Conventionally, flat plates, corrugated plates, sheets, etc., manufactured by extrusion molding are produced by thermoforming in such a way that, although not shown, a molding material containing resin is fed into an extruder in a factory, melted and kneaded, the high-temperature molten resin in the extruder is formed into a strip shape by a die and extruded downward, and this high-temperature molten resin extruded downward is wound around multiple rolls (see Patent Documents 1, 2, 3, and 4).

[0003] However, since the resin used as the molding material gasifies, when the high-temperature molten resin passes through the die, high-temperature gas is generated from the die, and this gas becomes airborne particles (also known as vapor). These airborne particles accumulate, float, or scatter in the air around the die. However, when the temperature drops below the melting point, they solidify and fall, which can worsen the manufacturing environment. To solve this problem, a conventional method has been proposed in which suction ducts and ventilation fans for removing airborne particles are installed in the ceiling of the factory, and these air conditioning devices are located above the extrusion molding machine. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 53-125483 [Patent Document 2] Japanese Patent Application Publication No. 04-189539 [Patent Document 3] Japanese Patent Application Laid-Open No. 2008-15118 [Patent Document 4] Japanese Patent Application Publication No. 11-138574 Summary of the Invention [Problem to be solved by the invention]

[0005] However, while installing air conditioning equipment such as suction ducts or ventilation fans above the extrusion molding machine provides a temporary effect, airborne particles adhere to the air conditioning equipment, and as the temperature in the factory drops, the airborne particles solidify and fall onto the extrusion molding machine, die, and surrounding areas, worsening the manufacturing and working environment.

[0006] The present invention has been made in consideration of the above, and aims to provide a suspended particulate matter removal device and a method for using the same that can remove suspended particulate matter generated from molds, thereby improving the manufacturing and working environment. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides an apparatus for removing suspended fine particles generated from a mold when a molten molding material is formed into a predetermined cross-sectional shape using the mold, the apparatus comprising: The device is characterized by comprising a blowing means arranged on one side of the mold for blowing air laterally from one side to the other side of the mold, and a suction means arranged on the other side of the mold for sucking the air mixed with floating minute substances.

[0008] The air blowing means includes a supply pipe, at least a portion of which is bendable, for guiding air from the rotating body, and a blowing section, which is disposed on one side of the mold and blows air from the supply pipe laterally from one side of the mold to the other side, The suction means may include a suction section disposed on the other side of the mold for suctioning air mixed with suspended fine particles generated from the mold, and an exhaust pipe having at least a portion thereof bendable for directing the air mixed with suspended fine particles sucked into the suction section to the outdoors. The mold may be a die attached to an extrusion molding machine, and the blowing portion for blowing air from the blowing means may be positioned above the floating fine matter generating portion of the die.

[0009] In addition, the mold can be a die attached to an extrusion molding machine, and the molding material discharged from the outlet of this die can be sandwiched between multiple rolls, and the blowing section that blows air from the blowing means can be positioned above the outlet of the die. In addition, the mold can be a die attached to an extrusion molding machine, and the molding material discharged from the discharge outlet of this die can be sandwiched between multiple rolls with different rotation speeds to form a roughly strip-shaped resin sheet, and a blowing section that blows air from the air blowing means can be attached to at least one of the front side and back side of the die, and the blowing section of this air blowing means can be positioned above the discharge outlet of the die.

[0010] It is also possible to sandwich the molding material discharged from the die outlet between the roll and the touch roll. It is also possible to form a space between the roll and the suction part of the suction means, attach an anti-clogging filter to the suction part of the suction means, and separate at least the downstream end of the exhaust pipe from the die and the area above it.

[0011] In order to solve the above problems, the present invention provides a method for using the airborne micro-matter removal device according to claim 1 or 2, which comprises: When molten molding material is supplied to a mold and the mold is used to form the molding material into a predetermined cross-sectional shape, the flow of suspended fine particles generated from the mold is changed to a horizontal direction by blowing air laterally from one side of the mold to the other side with an air blowing means, and the air mixed with suspended fine particles is sucked up by an suction means arranged on the other side of the mold.

[0012] Here, the molding material in the claims can contain a predetermined resin, rubber composition, etc. Furthermore, the "mold" includes various metal molds, dies, sizing dies, etc. When the molding material flows into the mold, it is preferable that one side or the other side of the mold is approximately perpendicular to the flow direction of the molding material. The number of air blowing means, suction means, and multiple rolls can be increased or decreased as needed. Furthermore, it is preferable that the air flow is approximately laminar. The extrusion molding machine can be used for profile extrusion, co-extrusion molding, foam extrusion molding, inflation molding, etc.

[0013] The resin sheet may be transparent, opaque, or translucent, and may be a thin resin film. Furthermore, the up-down, front-rear, left-right directions of the airborne particulate matter removal device according to the present invention are directions based on the drawings, and can be appropriately changed as needed. Furthermore, while the subject of the present invention is an airborne particulate matter removal device, if the configuration of another application is the same as the configuration of the present invention and can be converted to an airborne particulate matter removal device, and the effect of the present invention is achieved, the configuration of the other application falls within the technical scope of the present invention.

[0014] According to the present invention, when the mold forms the molten molding material into a predetermined cross-sectional shape, high-temperature gas is generated from the mold and becomes suspended fine particles. However, this suspended fine particles are blown laterally to the other side of the mold by the air flow from the blowing means and are sucked into the suction means together with the air. [Effects of the Invention]

[0015] According to the present invention, the device includes a blowing means arranged on one side of the mold for blowing air laterally from one side of the mold to the other side, and a suction means arranged on the other side of the mold for sucking air mixed with floating fine particles, thereby having the effect of removing floating fine particles generated from the mold and improving the manufacturing environment and working environment.

[0016] According to the invention of claim 2, the blowing means is divided into a supply pipe and a blowing section, and this blowing section can be attached to the side of the mold, which makes it possible to save space and improve the freedom of layout. Also, since the suction means is divided into a suction section and an exhaust pipe, it is expected that the freedom of layout will be improved.

[0017] According to the invention described in claim 3, since a die is attached to the extrusion molding machine as a mold, it is possible to easily give a uniform shape and dimensions to the molding material, and it is also expected that the molding material will not stagnate. In addition, since the blowing portion of the air blowing means is located above the part that generates suspended fine particles, such as the die outlet, it is possible to eliminate the risk of wind coming into contact with the molding material discharged from the die and adversely affecting its quality.

[0018] According to the invention described in claim 4, the molding material discharged from the die is sandwiched between multiple rolls rotating at different speeds and cooled to form a roughly strip-shaped resin sheet, thereby enabling the resin sheet to be molded with high precision while improving surface properties.In addition, it is possible to control the thickness of the resin sheet with high precision.Furthermore, since the blowing section of the blowing means is attached to at least one side of the front of the die, the blowing section can be located as close as possible to the discharge port from which the molding material is discharged from the die, i.e., the area where suspended particles are generated, making it possible to properly blow away suspended particles.

[0019] In addition, since the blowing portion of the air blowing means is located above the die outlet, it is possible to eliminate the risk of air coming into contact with the molding material discharged from the die, which could adversely affect quality. Furthermore, when rolls are used to manufacture resin sheets, it is possible to eliminate the risk of the rolls and the blowing portion coming into contact with each other due to their proximity.

[0020] According to the invention described in claim 5, the suction section of the suction means defines a space between the suction section and the roll, so the suction section and the roll do not overlap, eliminating the risk of airborne particles adhering to the roll from the suction section. Furthermore, an anti-clogging filter is attached to the suction section, eliminating the risk of the suction device's performance being reduced or the exhaust pipe being clogged with airborne particles. Furthermore, since at least the downstream end of the exhaust pipe is installed away from the die or above it, it is expected that contamination of the die can be prevented. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a plan view illustrating a main part of an embodiment of an airborne particulate matter removal device and a method of using the same according to the present invention; [Figure 2] 1 is an overall explanatory diagram schematically illustrating an embodiment of a suspended particulate matter removal device and a method of using the same according to the present invention. [Figure 3] 1 is an overall explanatory diagram showing a schematic view of the blowing section of the blowing means in an embodiment of the airborne particulate matter removal device and its method of use according to the present invention; [Figure 4] 1 is an overall explanatory diagram schematically showing a suction means in an embodiment of an airborne particulate matter removal device and a method of using the same according to the present invention. [Figure 5] 1 is a plan view illustrating a main part of a second embodiment of an airborne particulate matter removing device and a method for using the same according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0022] A preferred embodiment of the present invention will now be described with reference to the drawings. The airborne particulate matter removal device in this embodiment is, as shown in Figures 1 to 4, a device for removing airborne particulate matter V generated from a downward T-die 20 when molding material 1 from a melt extrusion molding machine 10 that melts and kneads the molding material 1 is formed into a cross-sectional plate shape using the T-die 20.The device is equipped with an air blowing means 30 that blows air from one side of the T-die 20 to the opposite side, and an suction means 40 that sucks in air containing airborne particulate matter V, and contributes to the achievement of SDG Goal 9 adopted at the United Nations Summit.

[0023] 2 to 4, molding material 1 is prepared by adding necessary additives to a predetermined resin, and forms a resin sheet 2. The resin is not particularly limited, but examples include thermoplastic resins such as polycarbonate resin, polyether ether ketone resin, polyvinylidene chloride resin, polyvinyl chloride resin, polyethylene resin, polyamide resin, polypropylene resin, polyolefin resin, polyethylene terephthalate resin, polyester resin, polyimide resin, polysulfone resin, polyphenylene sulfide resin, fluororesin, polyarylate resin, polyacetal resin, liquid crystal polymer, and aliphatic polyketone resin.

[0024] When the resin sheet 2 is a plate or film, the resin used is a polycarbonate resin, which has excellent impact resistance and heat resistance, or a hard vinyl chloride resin, which is resistant to deterioration. Necessary additives may be selectively used, such as antioxidants, heat stabilizers, slip agents, antistatic agents, antiblocking agents, viscosity modifiers, and color inhibitors. Like resins, these additives often vaporize to generate high-temperature gases, i.e., suspended particles V, so care must be taken when adding them and in what amounts.

[0025] 1 to 4, melt extrusion molding machine 10 is, for example, a single-screw extruder or twin-screw extruder installed in a factory to melt-knead molding material 1, and has a horizontally long cylinder equipped with multiple heaters, inside which a screw is rotatably mounted and supported, for melt-kneading molding material 1 while extruding it forward. A hopper 11 is installed above the rear of melt extrusion molding machine 10 to supply molding material 1 to the inside of the cylinder, and an inert gas supply pipe 12 is connected to hopper 11 as needed to supply an inert gas such as helium gas, argon gas, or nitrogen gas. The supply of inert gas from inert gas supply pipe 12 effectively prevents oxidative degradation, oxygen crosslinking, and thermal crosslinking of molding material 1.

[0026] A connecting pipe 13, which allows high-temperature molding material 1 to flow from the cylinder, is connected horizontally to the tip of melt extruder 10, and a gear pump 14 and a removal device 15 are attached to this connecting pipe 13 as needed. Gear pump 14 transfers molding material 1 melt-kneaded by melt extruder 10 at a constant flow rate and with high precision to downstream removal device 15. Removal device 15 is made up of, for example, a screen, and separates foreign matter from the melt-kneaded molding material 1, and transfers molding material 1 to downstream T-die 20.

[0027] 1 to 4, the T-die 20 is attached to the tip of the connecting pipe 13 of the melt extruder 10, and functions to form the molten resin of the molding material 1 into a wide cross-sectional plate and continuously extrude it downward while generating high-temperature gas. Below the T-die 20, a plurality of polishing rolls 21 for cooling, which rotate at different speeds, and a pair of touch rolls 22 are rotatably arranged, and a winder 23 is installed downstream of these rolls 21 and 22.

[0028] As shown in Figures 2 to 4, the multiple (three in this embodiment) polishing rolls 21 include an upstream polishing roll 21A that rotates at a low speed while contacting the molten resin extruded from the T-die 20 to form a resin sheet 2, a midstream polishing roll 21B that rotates at a medium speed while sandwiching the resin sheet 2 between itself and the upstream polishing roll 21A, and a downstream polishing roll 21C that rotates at a high speed while sandwiching the resin sheet 2 between itself and the midstream polishing roll 21B.These rolls are arranged in a horizontal row, and by sandwiching and rapidly cooling the molten resin continuously extruded downward from the T-die 20, they function to form a strip-shaped resin sheet 2 with high precision while improving the surface properties and flatness.

[0029] Each polishing roll 21 is constructed, for example, with a double-pipe or triple-pipe structure, and its peripheral surface (surface) is subjected to a mirror finish or the like to improve specularity and lubricity. Methods for adjusting the temperature or cooling the polishing roll 21 include, for example, methods using a heat medium such as air, water, or oil, or methods using an electric heater or induction heating.

[0030] 2 to 4, a pair of touch rolls 22 are arranged to sandwich a plurality of polishing rolls 21, and each touch roll 22 is configured to have a smaller diameter than the polishing rolls 21, and functions to control the thickness of the resin sheet 2 by sandwiching the molten resin or resin sheet 2 between the upstream polishing roll 21A which rotates at a low speed and the downstream polishing roll 21C which rotates at a high speed. The touch roll 22 is configured, for example, with a double-pipe or triple-pipe structure, and is temperature-regulated and cooled in the same way as the polishing rolls 21.

[0031] As shown in the figure, the winder 23 is installed further downstream of the downstream touch roll 22, and functions to wind up the molded resin sheet 2 at a constant tension. A slit blade 24 that forms a slit in the longitudinal direction of at least one of both side portions of the resin sheet 2 is arranged between the winder 23 and the downstream touch roll 22 so that it can be raised and lowered. A required number of rotatable tension rolls 25 that apply tension to the resin sheet 2 to allow the winder 23 to smoothly wind it up are supported between the slit blade 24 and the winder 23.

[0032] As partially shown in Figures 1 to 4, the blowing means 30 is composed of a blowing device equipped with a flexible cylindrical supply duct 31 connected to a casing incorporating a rotatable impeller, which is a rotating body, for example, to guide the air, and an approximately rectangular cylindrical blowing nozzle 32 connected to the tip of the supply duct 31 to blow the air horizontally (see the arrow in Figure 1).By colliding the air with the high-temperature gas generated from the T-die 20, the flow of the gas is changed from vertical to horizontal, and the gas and air, i.e., the air, are mixed with the suspended fine particles V.

[0033] The casing containing the impeller of the blower means 30 may be, for example, the casing of a centrifugal or axial blower. Furthermore, the supply ducts 31 may be spiral ducts or flexible ducts, at least partially bendable, so that they can be easily installed in a narrow space. The blowing nozzle 32 is directly attached to one side of the front surface 20a of the T-die 20. This is because, by placing the blowing nozzle 32 as close as possible to the outlet 20b from which the molten resin of the T-die 20 is discharged, in other words, the source of the airborne particles V, the airborne particles V can be reliably blown away, and this is expected to reduce the number of parts and save space.

[0034] Furthermore, the blowing nozzle 32 of the blowing means 30 is mounted so that the outlet 32a from which the air is blown is positioned above the discharge port 20b of the T-shaped die 20. This is because if the outlet 32a is lower than the discharge port 20b of the T-shaped die 20, the outlet 32a may come into contact with the polishing roll 21, and the air may come into contact with the molten resin extruded from the T-shaped die 20, adversely affecting the quality of the resin sheet 2.

[0035] The air blown from the blowout nozzle 32 may be hot air or cold air. The air blown as the air may be normal air or purified clean air. The air speed of the blowout nozzle 32 is not particularly limited, but when measured in accordance with the JIS A1431 standard, it is preferably 0.98 m / min to 1.30 m / min, more preferably 1.00 m / min to 1.20 m / min, and even more preferably 1.01 m / min to 1.09 m / min. Experimental results have shown that a speed within the range of 0.98 m / min to 1.30 m / min can achieve both the blowing function and the suction function, and the air can be reliably delivered to the suction means 40.

[0036] The air blown out from the blowing nozzle 32 is preferably a laminar flow in which the air flows regularly, rather than a turbulent flow in which the air flows irregularly, because if the air is turbulent, there is a risk that the floating particles V will adhere to the T-die 20.

[0037] The suction means 40 consists of an approximately box-shaped suction box 41 that sucks air containing suspended microscopic particles V from the blowing means 30 into a negative pressure area by driving a pump such as a vacuum pump, and a flexible cylindrical exhaust duct 42 connected to the suction box 41 that directs the air containing suspended microscopic particles V outside the factory, and functions to prevent deterioration of the manufacturing environment due to the falling of suspended microscopic particles V.

[0038] The suction box 41 of the suction means 40 is configured, for example, as a rectangular duct structure larger than the blowing nozzle 32 of the blowing means 30, and is installed on a polishing roll stand laterally on the other side of the T-die 20, facing the blowing nozzle 32 of the blowing means 30, and defines a space 43 between itself and the end faces of the polishing rolls 21, and is located above the polishing rolls 21. The reason why the suction box 41 defines a space 43 between itself and the end faces of the polishing rolls 21 is because, if the suction box 41 and the polishing rolls 21 overlap, there is a risk that airborne particles V will fall from the suction box 41 onto the polishing rolls 21.

[0039] The front of the suction box 41 has an opening formed therein facing the blow-out nozzle 32 of the blowing means 30, and it is preferable that this opening be covered and protected by an anti-clogging filter 44. This is because, if it is not covered with the anti-clogging filter 44, the function of the pump and the like may be reduced, and the exhaust duct 42 may be clogged with suspended fine particles V. This anti-clogging filter 44 may be any of a nonwoven fabric filter, a glass fiber filter, a metal filter, etc.

[0040] The air velocity of such suction box 41 is not particularly limited, but when measured in accordance with the standard JIS A1431, it is preferably 0.90 m / min to 1.01 m / min, more preferably 0.92 m / min to 0.98 m / min, and even more preferably 0.94 m / min to 0.97 m / min. This is because, according to experimental results, if the air velocity is within the range of 0.90 m / min to 1.01 m / min, both the blowing function and the suction function can be achieved, and the suction function can be satisfied.

[0041] The exhaust duct 42 of the suction means 40 is a spiral duct or flexible duct, at least a portion of which is bendable, used in the required number of ducts, for example, to facilitate installation in a narrow space, and its upstream portion is connected to the rear portion of the suction box 41. This exhaust duct 42 exhausts air containing airborne particulate matter V by driving a blower, but is installed away from the T-die 20 or directly above it to prevent contamination of the T-die 20. Specifically, of the midstream and downstream ducts, at least the downstream end is installed at a distance of 2000 mm or more, preferably 2500 mm or more, and more preferably 3000 mm or more, from the T-die 20 or directly above it.

[0042] In the above configuration, when the resin sheet 2 to be molded is produced by melt extrusion molding, the blower 30 and the suction means 40 are operated to form an air flow between them, and the resin-containing molding material 1 is charged into the hopper 11 of the melt extruder 10 and started. The molding material 1 is then melt-kneaded by the melt extruder 10, passes from the melt extruder 10 through a connecting pipe 13, a gear pump 14, and a removal device 15 in this order, and flows into the T-die 20, where the high-temperature molten resin is continuously formed into a strip having a plate-like cross section and extruded downward.

[0043] When the high-temperature molten resin is extruded downward from the T-die 20, high-temperature gas is generated from the T-die 20 and becomes suspended fine particles V. This suspended fine particles V are blown laterally from one side of the T-die 20 to the other side by the wind from the blowing nozzle 32 of the blowing means 30, and while mixed with the wind, are sucked into the suction box 41 of the suction means 40 through the anti-clogging filter 44, and then flow from the suction box 41 through the exhaust duct 42 and exhausted outside the factory.

[0044] The molten resin extruded downward from the T-die 20 is sandwiched and cooled between the upstream polishing roll 21A and the touch roll 22 to form a resin sheet 2, which is then passed through the midstream polishing roll 21B, the downstream polishing roll 21C, the downstream touch roll 22, and the tension roll 25 in that order and wound up on the winder 23, thereby producing the resin sheet 2.

[0045] According to the above configuration, the high-temperature gas generated from the discharge port 20b of the T-die 20, i.e., the suspended particles V, are blown sideways rather than upward by the air blowing across the T-die 20 from the air blowing means 30 and sucked into the suction box 41 of the suction means 40. This prevents the suspended particles V from accumulating or floating around the T-die 20, eliminating the need for air conditioning equipment such as a suction duct or ventilation fan above the melt extrusion molding machine 10. Therefore, even if the temperature in the factory drops, the suspended particles V will not solidify and fall onto the T-die 20 or its surroundings, preventing deterioration of the manufacturing and working environments. Since die maintenance is particularly essential in extrusion molding methods such as melt extrusion molding, preventing the suspended particles V from falling onto the T-die 20 can be a significant advantage.

[0046] Furthermore, since the airborne particles V do not fall onto the T-die 20 or its surroundings, they can be prevented from adhering to the resin sheet 2 and causing holes, discoloration, etc. Furthermore, the air blowing means 30 is divided into a casing, a supply duct 31, and an outlet nozzle 32, and only the outlet nozzle 32 is directly attached to one side of the front surface 20a of the T-die 20, thereby realizing space saving and improving layout flexibility. Furthermore, the suction box 41 is installed using the polishing roll stand on the other side of the T-die 20 in the lateral direction, rather than being installed in a dedicated space, thereby significantly reducing space.

[0047] Next, Figure 5 shows a second embodiment of the present invention, which includes an extruder 50 that melts and kneads a molding material 1 containing a predetermined resin that has been input, and a round die 51 that continuously forms the molding material 1 that has melted and flowed from the extruder 50 into a molten resin with a circular cross section and extrudes it approximately horizontally downstream and forward.A blowing means 30 is installed laterally on one side of the die 51 to blow air (see arrow in Figure 5) laterally on the other side of the die 51, and a suction means 40 is installed laterally on the other side of the die 51 to suck in air mixed with suspended fine particles V.

[0048] A cooling machine (not shown), such as a cooling tank, is installed downstream of the die 51 in front of the die 51 to cool the molten resin of the extruded molding material 1 to form a cylindrical rod. A take-up machine (not shown) for the rods is installed downstream of the cooler. A cutter (not shown) for cutting the rods to a predetermined length is installed downstream of the take-up machine. The blowing nozzle 32 of the air blowing means 30 may be installed on one side of the die 51 via a support bracket or the like, or may be installed laterally away from one side of the die 51. The blowing nozzle 32 is installed so that the blowing outlet 32a is located above the discharge outlet 51a of the die 51, from which the molten resin is discharged, in order to prevent the air from coming into contact with the extruded molten resin and adversely affecting its quality.

[0049] The suction box 41 of the suction means 40 may be installed on the other side of the die 51 via a support bracket or the like, or may be installed laterally spaced apart from the other side of the die 51. This suction box 41 is located above the die 51 and faces the blowing nozzle 32 of the blowing means 30. The other parts are the same as those in the above embodiment, so a description thereof will be omitted.

[0050] This embodiment can also be expected to have the same effects as the above embodiment, and moreover, the high-temperature gas generated from the discharge outlet 51a of the die 51, i.e., the suspended fine particles V, are blown sideways rather than upwards by the wind from the blowing means 30 and sucked into the suction box 41 of the suction means 40, so that the suspended fine particles V do not stagnate or float around the die 51, and the trouble of installing a suction duct, ventilation fan, etc. above the extrusion molding machine 50 can be avoided.

[0051] While the above embodiment illustrates a molding material 1 containing a specific resin, the present invention is not limited thereto and may also include a molding material 1 containing a rubber composition such as fluororubber or silicone rubber. The removal device 15 in the above embodiment may be replaced with a polymer filter or the like as needed. While the above embodiment illustrates a T-shaped die 20 for a resin sheet 2, the present invention is not limited thereto and may also include a T-shaped die 20 for electromagnetic wave sealing, antistatic resin sheet, resin film for capacitors, packaging film, cling film, etc. Dies for plate materials, lumber, automotive products, tubes, pipes, etc. may also be used. A straightening plate may be attached to the front 20a or back of the T-shaped die 20 to prevent turbulence.

[0052] Furthermore, when manufacturing electric parts, electronic parts, containers, etc. by injection molding, air blowing means 30 may be installed laterally on one side of a fixed mold of the injection molding machine, and suction means 40 for sucking air may be installed laterally on the other side of the fixed mold. Furthermore, when manufacturing bottles, detergent containers, etc. by blow molding, air blowing means 30 may be installed laterally on one side of a die that forms molding material 1 flowing from the blow molding machine into a cylindrical molten resin (parison) and inserts it into a mold downstream, and air blowing means 30 may be installed laterally on the other side of the die that blows air, and suction means 40 may be installed laterally on the other side of the die that sucks air mixed with airborne particulate matter V.

[0053] Furthermore, instead of being installed downstream below the T-die 20, multiple polishing rolls 21 may be arranged horizontally in a row downstream in front of the T-die 20, or multiple polishing rolls 21 may be arranged vertically in a row downstream in front of the T-die 20. In addition, to improve the adhesion between the resin sheet 2 and the polishing roll 21, the peripheral surface of each touch roll 22 may be coated with a rubber layer such as nitrile rubber, urethane rubber, silicone rubber, or fluororubber.

[0054] Furthermore, the resin sheet 2 can be wound around a plurality of polishing rolls 21, thereby eliminating the need for a plurality of touch rolls 22. Furthermore, instead of the plurality of polishing rolls 21 and the pair of touch rolls 22, a cooler, a take-up machine, and a winder 23 can be installed. Furthermore, the blowing nozzles 32 of the air blowing means 30 can be attached to one side of the front surface, one side of the back surface, or a side surface of the T-die 20 on the removing device 15 side, as needed. The number of blowing nozzles 32 of the air blowing means 30 can be increased to two or more.

[0055] It is also possible to shift the position of the suction box 41 of the suction means 40 in the longitudinal direction of the connecting pipe of the melt extruder 10, or to enlarge the suction box 41. Furthermore, more than half or most of the exhaust duct 42, excluding the upstream end, may be located at a distance of 2000 mm or more, preferably 2500 mm or more, and more preferably 3000 mm, from the T-die 20 or directly above it. Furthermore, all of the technologies described in this specification are subject to the acquisition of rights through amendments, divisional applications, etc. [Industrial Applicability]

[0056] The airborne particulate matter removal device and method of using the same according to the present invention are used in the field of manufacturing molded articles using molds. [Explanation of symbols]

[0057] 1 Molding material 2 Resin sheet 10 Melt extrusion molding machine (extrusion molding machine) 20 T Dice (mold, die) 20a front 20b Outlet (Suspended Fine Matter Generator) 21 Polishing roll (roll) 21A Upstream polishing roll (roll) 21B Midstream polishing roll (roll) 21C Downstream polishing roll (roll) 22 Touch Roll 30 Air blowing means 31 Supply duct (supply pipe) 32 Blowing nozzle (blowing part) 32a Air outlet 40 Suction means 41 Suction box (suction part) 42 Exhaust duct (exhaust pipe) 43 Space 44 Anti-clogging filter 50 Extrusion molding machine 51 Dice (type) 51a Discharge port V. Suspended Particulate Matter

Claims

1. A floating particulate matter removal device that removes floating particulate matter generated from a mold when a molten molding material is formed into a predetermined cross-sectional shape using the mold, A floating micro-matter removal device characterized by comprising a blowing means arranged on one side of the mold for blowing air laterally from one side of the mold to the other side, and a suction means arranged on the other side of the mold for sucking in air mixed with floating micro-matter.

2. the air blowing means includes a supply pipe, at least a portion of which is bendable, for guiding air from the rotating body, and a blowing section, which is disposed on one side of the mold and blows the air from the supply pipe laterally from one side to the other side of the mold; The suction means of the airborne particulate matter removal device of claim 1 includes an suction section arranged on the other side of the mold for suctioning air mixed with airborne particulate matter generated from the mold, and an exhaust pipe, at least a portion of which is bendable, for directing the air mixed with airborne particulate matter sucked into the suction section to the outdoors.

3. 3. The floating particulate matter removing device according to claim 1, wherein the mold is a die attached to an extrusion molding machine, and the blowing section for blowing out air from the blowing means is positioned above the floating particulate matter generating section of the die.

4. An airborne particulate matter removal device as described in claim 1 or 2, in which the mold is a die attached to an extrusion molding machine, the molding material discharged from the discharge outlet of this die can be sandwiched between multiple rolls with different rotational speeds to form an approximately strip-shaped resin sheet, and a blowing section for blowing air from a blowing means is attached to at least one of the front side and back side of the die, and the blowing section of this blowing means is positioned above the discharge outlet of the die.

5. A floating particulate matter removal device as described in claim 4, in which a space is formed between the roll and the suction portion of the suction means, an anti-clogging filter is attached to the suction portion of the suction means, and at least the downstream end of the exhaust pipe is separated from the die and its upper portion.

6. A method of using the airborne particulate matter removal device described in claim 1 or 2, characterized in that when molten molding material is supplied to a mold and the molding material is formed into a predetermined cross-sectional shape using this mold, the flow of airborne particulate matter generated from the mold is changed to a horizontal direction by blowing air laterally from one side of the mold to the other side using an air blowing means, and the air mixed with the airborne particulate matter is sucked up by an suction means arranged on the other side of the mold.

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