An electrostatic electret device for meltblown nonwoven fabrics

Abstract

The invention discloses an electrostatic electret device for melt-blown nonwoven fabrics, belonging to the field of textiles. An electrostatic electret device for melt-blown nonwoven fabrics, comprising a molybdenum wire adjustment mechanism and a molybdenum wire fixing detection mechanism, wherein a molybdenum wire body is connected between the molybdenum wire adjustment mechanism and the molybdenum wire fixing detection mechanism; the molybdenum wire adjustment mechanism mainly comprises a worm, a worm wheel, a first fixed rod seat and a winding wheel, a rotating shaft is rotatably connected in the transverse plate, and the worm wheel and the worm are meshed with each other; the molybdenum wire fixing detection mechanism mainly comprises a trigger rod, a connecting plate and a second fixed rod seat; the two ends of the molybdenum wire body are respectively connected to the bottom of the winding wheel and the trigger rod; the present invention can greatly reduce the space occupied, and the device can tighten the molybdenum wire and adjust the distance between the molybdenum wire and the cloth surface, and can detect the breakage of the molybdenum wire, and give feedback in time, so that the melt-blown cloth can achieve good filtering performance, and this structure is simple and has wide applicability.

Description

Technical Field

[0001] The invention relates to the field of textile technology, and in particular to an electrostatic electret device for melt-blown nonwoven fabrics. Background Art

[0002] In recent years, the demand for meltblown nonwoven fabrics has been increasing. Meltblown nonwoven fabrics are widely used as filter materials, medical and sanitary materials, environmental protection materials, and clothing materials. When meltblown fabrics are used as filter materials and medical and sanitary materials, their filtration performance is very high. The filtration performance of meltblown nonwoven fabrics themselves is only less than 70%. To improve their filtration performance, the current common method is to add electrostatic charge effects to meltblown fabrics through the electrostatic electret process, and use electrostatic methods to improve the filtration efficiency, which can reach 99.99%.

[0003] The electret equipment is an important equipment in the production process of melt-blown nonwovens. At present, most of the electret equipment used for melt-blown nonwovens is a combination of an electrostatic generator and an electret discharge rod. This type of discharge rod occupies a large space and the distance from the fabric surface cannot be adjusted at a close distance. China Publication No. CN110820174A discloses a method for preparing a polypropylene non-woven fabric and an electret device thereof, wherein the disclosed electret device uses pure water to penetrate the non-woven fabric to perform hydroentanglement electret charging, the device occupies a large space and is complex, and the quality of the non-woven fabric will be affected by the dry-wet change; China Publication No. CN105625015A discloses a double-sided double-electret device for non-woven fabrics, the device uses a number of high-voltage static electricity generating needles to discharge, the device occupies a large space, and the structure is relatively complex, and the adjustable range is small; China Publication No. CN206034102U discloses an electrostatic electret device for non-woven fabrics, which uses metal wires as electret discharge rods, greatly reducing the occupied space, but the distance adjustment range from the fabric surface is small, and the structure is relatively complex, and it is inconvenient to replace the metal wire and repair it. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of complex structure and inconvenient maintenance of metal wire replacement in the prior art, and to propose an electrostatic electret device for melt-blown non-woven fabrics.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electrostatic electret device for melt-blown nonwoven fabrics, comprising a molybdenum wire adjustment mechanism and a molybdenum wire fixing detection mechanism, wherein a molybdenum wire body is connected between the molybdenum wire adjustment mechanism and the molybdenum wire fixing detection mechanism;

[0007] The molybdenum wire adjustment mechanism mainly includes a worm, a worm wheel, a first fixed rod seat and a winding wheel, the side wall of the first fixed rod seat is fixedly connected with a horizontal plate, the end of the first fixed rod seat away from the horizontal plate is connected to the wall plate, the horizontal plate is rotatably connected with a rotating shaft, the worm wheel is fixedly connected to the rotating shaft, the worm wheel and the worm are meshed with each other, and the winding wheel is connected to the bottom of the rotating shaft;

[0008] The molybdenum wire fixing detection mechanism mainly includes a trigger rod, a connecting plate and a second fixing rod seat, the connecting plate is fixedly connected to the second fixing rod seat, and the trigger rod is connected to the connecting plate;

[0009] The two ends of the molybdenum wire body are respectively connected to the bottom of the winding wheel and the trigger rod.

[0010] Preferably, a circular hole is provided in the transverse plate, a bearing is provided in the circular hole, and the rotating shaft is rotatably connected to the transverse plate via the bearing.

[0011] Preferably, the two sides of the transverse plate are respectively fixedly connected with a left support and a right support, and the worm is rotatably connected to the left support and the right support.

[0012] Preferably, one end of the worm away from the left support passes through the right support and is connected to an adjusting hand wheel.

[0013] Preferably, the outer wall of the first fixing rod seat is provided with a first threaded hole, and the inner wall of the first fixing rod seat is provided with a connecting screw.

[0014] Preferably, a fixing seat is provided on the outer wall of the connecting plate, a micro switch is fixedly connected to the fixing seat, and a trigger end of the micro switch is connected to the trigger rod.

[0015] Preferably, the connecting plate is configured in a Z shape, and the connecting plate is connected to the second fixing rod seat by bolts.

[0016] Preferably, the second fixing rod seat is provided with a long slot, and the connecting plate is connected in the long slot.

[0017] Preferably, a through hole is provided on the second fixing rod seat, the trigger rod is connected in the through hole, and a concave hole is provided at the bottom of the trigger rod for connecting the molybdenum wire.

[0018] Preferably, a second threaded hole is provided on the outer wall of the second fixing rod seat.

[0019] Compared with the prior art, the present invention provides an electrostatic electret device for meltblown nonwoven fabrics, which has the following beneficial effects:

[0020] 1. The electrostatic electret device for melt-blown nonwoven fabrics, when in use, fix one end of the first fixed rod seat and the second fixed rod seat on the wall panel, connect screws in the first threaded hole and the second threaded hole on the first fixed rod seat and the second fixed rod seat, so as to fix the first fixed rod seat and the second fixed rod seat on the wall panel, and then the other end of the first fixed rod seat is connected with a rotating shaft in a direction perpendicular to the axis of the first fixed rod seat, the rotating shaft is connected and fixed to the cross plate through a bearing, a worm gear is installed on the rotating shaft, a winding wheel is installed at the end, and a matching worm is connected to the worm gear, and the worm is fixed by a left support and a right support On the first fixed rod seat, an adjusting handwheel is also installed at the end of the worm, and a Z-shaped connecting plate is connected to the side of the second fixed rod seat, and a fixing seat is connected to the Z-shaped connecting plate by screws, and a micro switch is connected to the fixing seat by bolts. The trigger end of the micro switch contacts the trigger rod, and the trigger rod is placed in the through hole between the Z-shaped connecting plate and the second fixed rod. The molybdenum wire body is tightened by adjusting the adjusting handwheel on the worm, and the distance between the molybdenum wire body and the cloth surface is adjusted by adjusting the positions of the first fixed rod seat and the second fixed rod seat on the wall panel. If the molybdenum wire body breaks, the micro switch will give feedback in time to stop the equipment from working.

[0021] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention uses molybdenum wire to add static electricity to the meltblown cloth, which can greatly reduce the space occupied. The device can tighten the molybdenum wire and adjust the distance between the molybdenum wire and the cloth surface. It can also detect the breakage of the molybdenum wire and give timely feedback, so that the meltblown cloth can achieve good filtering performance. This structure is simple and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an electrostatic electret device for meltblown nonwoven fabrics proposed by the present invention;

[0023] Figure 2 This is a structural schematic diagram of a molybdenum wire adjustment mechanism for a melt-blown nonwoven fabric electrostatic electret device proposed by the present invention;

[0024] Figure 3 A transmission diagram of a molybdenum wire adjustment mechanism in a melt-blown nonwoven fabric electrostatic electret device proposed by the present invention;

[0025] Figure 4 This is a structural schematic diagram of a molybdenum wire fixing detection mechanism for a melt-blown nonwoven fabric electrostatic electret device proposed by the present invention.

[0026] In the figure: 1. molybdenum wire adjustment mechanism; 2. molybdenum wire body; 3. molybdenum wire fixing detection mechanism; 1-1. adjusting hand wheel; 1-2. right support; 1-3. worm; 1-4. left support; 1-5. rotating shaft; 1-6. worm gear; 1-7. first fixed rod seat; 1-8. wiring screw; 1-9. winding wheel; 3-1. trigger rod; 3-2. connecting plate; 3-3. fixed seat; 3-4. micro switch; 3-5. second fixed rod seat. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Example 1

[0030] Reference Figure 1-4 , an electrostatic electret device for meltblown nonwoven fabrics, comprising a molybdenum wire adjustment mechanism 1 and a molybdenum wire fixing detection mechanism 3, wherein a molybdenum wire body 2 is connected between the molybdenum wire adjustment mechanism 1 and the molybdenum wire fixing detection mechanism 3;

[0031] The molybdenum wire adjustment mechanism 1 mainly includes a worm 1-3, a worm wheel 1-6, a first fixed rod seat 1-7 and a winding wheel 1-9. The side wall of the first fixed rod seat 1-7 is fixedly connected with a horizontal plate. The end of the first fixed rod seat 1-7 away from the horizontal plate is connected to the wall plate 1. A rotating shaft 1-5 is rotatably connected in the horizontal plate. The worm wheel 1-6 is fixedly connected to the rotating shaft 1-5. The worm wheel 1-6 and the worm 1-3 are meshed with each other. The winding wheel 1-9 is connected to the bottom of the rotating shaft 1-5.

[0032] The molybdenum wire fixing detection mechanism 3 mainly includes a trigger rod 3-1, a connecting plate 3-2 and a second fixing rod seat 3-5, the connecting plate 3-2 is fixedly connected to the second fixing rod seat 3-5, and the trigger rod 3-1 is connected to the connecting plate 3-2;

[0033] The two ends of the molybdenum wire body 2 are respectively connected to the bottom of the winding wheel 1-9 and the trigger rod 3-1.

[0034] In the present invention, when in use, one end of the first fixed rod seat 1-7 and the second fixed rod seat 3-5 are fixed on the wall panel, and the first threaded hole and the second threaded hole on the first fixed rod seat 1-7 and the second fixed rod seat 3-5 are connected with screws, so that the first fixed rod seat 1-7 and the second fixed rod seat 3-5 are fixedly connected to the wall panel, and then the other end of the first fixed rod seat 1-7 is connected with the rotating shaft 1-5 in a direction perpendicular to the axis of the first fixed rod seat 1-7, and the rotating shaft 1-5 is connected and fixed to the cross plate through a bearing, and a worm gear 1-6 is installed on the rotating shaft 1-5, and a winding wheel 1-9 is installed at the end, and a matching worm 1-3 is connected to the worm gear 1-6, and the worm 1-3 is fixed to the first fixed rod seat 1-4 through a left support 1-4 and a right support 1-2. 7, an adjusting hand wheel 1-1 is also provided at the end of the worm 1-3, a Z-type connecting plate 3-2 is connected to the side of the second fixed rod seat 3-5, a fixing seat 3-3 is connected to the Z-type connecting plate 3-2 by screws, a micro switch 3-4 is connected to the fixing seat 3-3 by bolts, a trigger end of the micro switch 3-4 is in contact with the trigger rod 3-1, and the trigger rod 3-1 is placed in the through hole between the Z-type connecting plate 3-2 and the second fixed rod 3-5, the molybdenum wire body 2 is tightened by adjusting the adjusting hand wheel 1-1 on the worm 1-3, and the distance between the molybdenum wire body 2 and the cloth surface is adjusted by adjusting the positions of the first fixed rod seat 1-7 and the second fixed rod seat 3-5 on the wall panel, if the molybdenum wire body 2 is broken, the micro switch 3-4 will give feedback in time to stop the equipment from working.

[0035] Embodiment 2:

[0036] Reference Figure 1-4 , an electrostatic electret device for meltblown nonwoven fabrics, comprising a molybdenum wire adjustment mechanism 1 and a molybdenum wire fixing detection mechanism 3, wherein a molybdenum wire body 2 is connected between the molybdenum wire adjustment mechanism 1 and the molybdenum wire fixing detection mechanism 3;

[0037] The molybdenum wire adjustment mechanism 1 mainly includes a worm 1-3, a worm wheel 1-6, a first fixed rod seat 1-7 and a winding wheel 1-9. The side wall of the first fixed rod seat 1-7 is fixedly connected with a horizontal plate. The end of the first fixed rod seat 1-7 away from the horizontal plate is connected to the wall plate 1. A rotating shaft 1-5 is rotatably connected in the horizontal plate. The worm wheel 1-6 is fixedly connected to the rotating shaft 1-5. The worm wheel 1-6 and the worm 1-3 are meshed with each other. The winding wheel 1-9 is connected to the bottom of the rotating shaft 1-5.

[0038] The molybdenum wire fixing detection mechanism 3 mainly includes a trigger rod 3-1, a connecting plate 3-2 and a second fixing rod seat 3-5, the connecting plate 3-2 is fixedly connected to the second fixing rod seat 3-5, and the trigger rod 3-1 is connected to the connecting plate 3-2;

[0039] The two ends of the molybdenum wire body 2 are respectively connected to the bottom of the winding wheel 1-9 and the trigger rod 3-1.

[0040] A circular hole is arranged in the horizontal plate, and a bearing is arranged in the circular hole. The rotating shaft 1-5 is rotatably connected to the horizontal plate through the bearing, so that the rotating shaft 1-5 can be easily rotated.

[0041] The left support 1-4 and the right support 1-2 are fixedly connected to the two sides of the horizontal plate respectively, and the worm 1-3 is rotatably connected to the left support 1-4 and the right support 1-2. The connection of the worm 1-3 can be more stable through the left support 1-4 and the right support 1-2, which is convenient for meshing with the worm wheel 1-6.

[0042] One end of the worm 1-3 away from the left support 1-4 passes through the right support 1-2 and is connected to the adjusting hand wheel 1-1. Turning the adjusting hand wheel 1-1 can drive the worm 1-3 to rotate, thereby rotating the worm wheel 1-6.

[0043] The outer wall of the first fixing rod seat 1-7 is provided with a first threaded hole, and the inner wall of the first fixing rod seat 1-7 is provided with a connecting screw 1-8, through which the first fixing rod seat 1-7 can be conveniently connected to the wall panel.

[0044] Embodiment 3:

[0045] Reference Figure 1-4 , an electrostatic electret device for meltblown nonwoven fabrics, comprising a molybdenum wire adjustment mechanism 1 and a molybdenum wire fixing detection mechanism 3, wherein a molybdenum wire body 2 is connected between the molybdenum wire adjustment mechanism 1 and the molybdenum wire fixing detection mechanism 3;

[0046] The molybdenum wire adjustment mechanism 1 mainly includes a worm 1-3, a worm wheel 1-6, a first fixed rod seat 1-7 and a winding wheel 1-9. The side wall of the first fixed rod seat 1-7 is fixedly connected with a horizontal plate. The end of the first fixed rod seat 1-7 away from the horizontal plate is connected to the wall plate 1. A rotating shaft 1-5 is rotatably connected in the horizontal plate. The worm wheel 1-6 is fixedly connected to the rotating shaft 1-5. The worm wheel 1-6 and the worm 1-3 are meshed with each other. The winding wheel 1-9 is connected to the bottom of the rotating shaft 1-5.

[0047] The molybdenum wire fixing detection mechanism 3 mainly includes a trigger rod 3-1, a connecting plate 3-2 and a second fixing rod seat 3-5, the connecting plate 3-2 is fixedly connected to the second fixing rod seat 3-5, and the trigger rod 3-1 is connected to the connecting plate 3-2;

[0048] The two ends of the molybdenum wire body 2 are respectively connected to the bottom of the winding wheel 1-9 and the trigger rod 3-1.

[0049] The connecting plate 3-2 is configured to be Z-shaped, and the connecting plate 3-2 is connected to the second fixed rod seat 3-5 by bolts. The Z-shaped connecting plate 3-2 is easy to install and supports and limits the trigger rod 3-1 at the same time.

[0050] The second fixed rod seat 3-5 is provided with a long groove, and the connecting plate 3-2 is connected in the long groove, and the long groove can facilitate the connection of the connecting plate 3-2.

[0051] A through hole is provided on the second fixed rod seat 3-5, and the trigger rod 3-1 is connected in the through hole. A concave hole is provided at the bottom of the trigger rod 3-1 for connecting the molybdenum wire.

[0052] The outer wall of the second fixing rod seat 3 - 5 is provided with a second threaded hole, through which the second fixing rod seat 3 - 5 can be conveniently connected to the wall panel.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrostatic electret device for meltblown nonwoven fabrics, characterized in that: It comprises a molybdenum wire adjustment mechanism (1) and a molybdenum wire fixing detection mechanism (3), wherein a molybdenum wire body (2) is connected between the molybdenum wire adjustment mechanism (1) and the molybdenum wire fixing detection mechanism (3); The molybdenum wire adjustment mechanism (1) mainly comprises a worm (1-3), a worm wheel (1-6), a first fixed rod seat (1-7) and a winding wheel (1-9); a side wall of the first fixed rod seat (1-7) is fixedly connected to a horizontal plate; an end of the first fixed rod seat (1-7) away from the horizontal plate is connected to a wall plate; a rotating shaft (1-5) is rotatably connected in the horizontal plate; the worm wheel (1-6) is fixedly connected to the rotating shaft (1-5); the worm wheel (1-6) and the worm (1-3) are meshed with each other; and the winding wheel (1-9) is connected to the bottom of the rotating shaft (1-5); The molybdenum wire fixing detection mechanism (3) mainly comprises a trigger rod (3-1), a connecting plate (3-2) and a second fixing rod seat (3-5), wherein the connecting plate (3-2) is fixedly connected to the second fixing rod seat (3-5), and the trigger rod (3-1) is connected to the connecting plate (3-2); The two ends of the molybdenum wire body (2) are respectively connected to the bottom of the winding wheel (1-9) and the trigger rod (3-1); A circular hole is provided in the horizontal plate, a bearing is provided in the circular hole, and the rotating shaft (1-5) is rotatably connected to the horizontal plate via the bearing; A fixing seat (3-3) is provided on the outer wall of the connecting plate (3-2), a micro switch (3-4) is fixedly connected to the fixing seat (3-3), and a trigger end of the micro switch (3-4) is connected to the trigger rod (3-1).

2. The electrostatic electret device for meltblown nonwoven fabric according to claim 1, characterized in that: A left support (1-4) and a right support (1-2) are respectively fixedly connected to the two sides of the transverse plate, and the worm (1-3) is rotatably connected to the left support (1-4) and the right support (1-2).

3. The electrostatic electret device for meltblown nonwoven fabric according to claim 2, characterized in that: One end of the worm (1-3) away from the left support (1-4) passes through the right support (1-2) and is connected to an adjusting hand wheel (1-1).

4. The electrostatic electret device for meltblown nonwoven fabric according to claim 3, characterized in that: The outer wall of the first fixing rod seat (1-7) is provided with a first threaded hole, and the inner wall of the first fixing rod seat (1-7) is provided with a connecting screw (1-8).

5. The electrostatic electret device for meltblown nonwoven fabric according to claim 1, characterized in that: The connecting plate (3-2) is arranged in a Z shape, and the connecting plate (3-2) is connected to the second fixing rod seat (3-5) via bolts.

6. The electrostatic electret device for meltblown nonwoven fabric according to claim 5, characterized in that: The second fixing rod seat (3-5) is provided with a long slot, and the connecting plate (3-2) is connected in the long slot.

7. The electrostatic electret device for meltblown nonwoven fabric according to claim 6, characterized in that: The second fixing rod seat (3-5) is provided with a through hole, the trigger rod (3-1) is connected in the through hole, and the bottom of the trigger rod (3-1) is provided with a concave hole for connecting a molybdenum wire.

8. The electrostatic electret device for meltblown nonwoven fabric according to claim 7, characterized in that: The outer wall of the second fixing rod seat (3-5) is provided with a second threaded hole.

Images