CN216141798U - Electrostatic electret for melt-blown cloth - Google Patents
Electrostatic electret for melt-blown cloth Download PDFInfo
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- CN216141798U CN216141798U CN202120977633.3U CN202120977633U CN216141798U CN 216141798 U CN216141798 U CN 216141798U CN 202120977633 U CN202120977633 U CN 202120977633U CN 216141798 U CN216141798 U CN 216141798U
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- electret
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Abstract
The utility model discloses a melt-blown fabric electrostatic electret, belonging to the field of melt-blown fabric production and processing, and comprising: a frame; the electret assembly is arranged on the rack, the electret assembly is provided with a gap through which the meltblown fabric can pass, and the electret assembly is used for uniformly discharging the meltblown fabric; and the high-voltage power supply is arranged on the rack and connected with the electret component and used for providing high voltage required by the electrostatic electret. By ensuring the parallelism among all parts of the electret assembly, the electret assembly can uniformly discharge the melt-blown cloth, the condition that the electrostatic electret effect of one part of the melt-blown cloth is good and the electrostatic electret effect of the other part of the melt-blown cloth is poor is prevented, and the consistency of the electrostatic adsorption capacity of all parts of the melt-blown cloth is ensured.
Description
Technical Field
The utility model relates to the field of production and processing of melt-blown cloth, in particular to a melt-blown cloth electrostatic electret.
Background
The melt-blown fabric mainly takes polypropylene as a main raw material, has the characteristics of more gaps, fluffy structure and good wrinkle resistance, and is the most core material for manufacturing the mask. The interception of the melt-blown fabric to particles mainly depends on mechanical barriers such as interception, inertial collision, direct interception and the like, but the mechanical barriers have poor filtering effect on the particles with the particle size of less than 1 micron. If the electrostatic adsorption is added in the air filtering process besides the original mechanical barrier, the charged particles are directly attracted and captured by coulomb force, and the submicron particles in the gas can be more effectively filtered.
The existing electrostatic electret equipment for melt-blown cloth generally adopts the matching of the wire electrode and the roller to carry out electrostatic electret on the melt-blown cloth, but the wire electrode and the roller can not be kept parallel, so that the electrostatic electret effect of the wire electrode and the end, which is relatively far away from the roller, is poor, and the electrostatic adsorption capacity of the melt-blown cloth is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve at least one technical problem in the prior art, and provides an electrostatic electret for meltblown fabric, which can ensure the consistent electrostatic adsorption capacity of all parts of the meltblown fabric.
The melt-blown fabric electrostatic electret according to the embodiment of the utility model comprises: a frame; the electret assembly is arranged on the rack, the electret assembly is provided with a gap through which the meltblown fabric can pass, and the electret assembly is used for uniformly discharging the meltblown fabric; and the high-voltage power supply is arranged on the rack and connected with the electret component and used for providing high voltage required by the electrostatic electret.
The melt-blown fabric electrostatic electret according to the embodiment of the utility model has at least the following beneficial effects: by ensuring the parallelism among all parts of the electret assembly, the electret assembly can uniformly discharge the melt-blown cloth, the condition that the electrostatic electret effect of one part of the melt-blown cloth is good and the electrostatic electret effect of the other part of the melt-blown cloth is poor is prevented, and the consistency of the electrostatic adsorption capacity of all parts of the melt-blown cloth is ensured.
According to some embodiments of the utility model, an electret assembly comprises: the insulating seat is arranged on the rack; the electrode wire is arranged on the insulating seat, and the high-voltage power supply is connected with the electrode wire; and the corona roller is arranged on the frame, is parallel to the wire electrode, and is penetrated by the melt-blown cloth from the wire electrode.
According to some embodiments of the utility model, the rack is further provided with a chute, the insulating seat is arranged in the chute, and the insulating seat comprises: the base is positioned on one side of the rack and provided with a notch, a power-on bolt is arranged on the base, the electrode wire is wound on the power-on bolt, and the power-on bolt is connected with a high-voltage power supply through a lead; the clamping piece is positioned on the other side of the rack and is opposite to the base, and the clamping piece is provided with a protrusion which penetrates through the sliding groove and is embedded with the notch; and the clamping bolt is sequentially connected with the clamping piece and the base, so that the clamping piece is tightly pressed towards the base to fix the insulating base on the rack.
According to some embodiments of the utility model, a protrusion is arranged at one end of the base, which is far away from the bracket, a groove is arranged on the protrusion, and the wire electrode is arranged in the groove.
According to some embodiments of the utility model, the rack is provided with a scale at a position corresponding to the chute.
According to some embodiments of the utility model, there are two sets of electret assemblies that discharge the front and back sides of the meltblown fabric, respectively.
According to some embodiments of the utility model, the device further comprises two tensioning rollers, and the two tensioning rollers are respectively arranged on two sides of the two groups of electret assemblies.
According to some embodiments of the utility model, the power supply further comprises a ground line, one end of the ground line is connected with the high-voltage power supply, and the other end of the ground line is connected with the ground.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a schematic diagram of a meltblown electrostatic electret according to an embodiment of the utility model;
FIG. 2 is a right side view of the meltblown electrostatic electret of FIG. 1 with portions of the frame removed;
FIG. 3 is a schematic view of the structure of the insulating base shown in FIG. 1
Reference numerals:
a frame 100; a chute 110;
an electret assembly 200; an insulating base 210; a base 211; the energizing bolt 211 a; the protrusions 211 b; a recess 211 c; a notch 211 d; a clamping member 212; the projections 212 a; a clamp bolt 213; a wire electrode 220; a corona roller 230;
a high voltage power supply 300;
a tension roller 400.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
A meltblown electrostatic electret according to an embodiment of the utility model is described below with reference to fig. 1-3.
As shown in fig. 1, a meltblown electrostatic electret according to an embodiment of the utility model includes: a frame 100; an electret assembly 200, wherein the electret assembly 200 is arranged on the frame 100, the electret assembly 200 has a gap through which the meltblown fabric can pass, and the electret assembly 200 is used for uniformly discharging the meltblown fabric; and a high voltage power supply 300, the high voltage power supply 300 being disposed on the frame 100, the high voltage power supply 300 being connected to the electret assembly 200, the high voltage power supply 300 being for supplying high voltage electricity required for electrostatic electret.
For example, as shown in fig. 1, a high voltage power supply 300 is disposed at the lower end of the frame 100, an electret assembly 200 is disposed at the upper end of the frame 100, the high voltage power supply 300 is connected to the electret assembly 200 through a wire, the high voltage power supply 300 provides high voltage to make the electret assembly 200 discharge to the meltblown fabric, and the electret assembly 200 discharges uniformly to all parts of the meltblown fabric, so that the electrostatic adsorption capacity of all parts of the meltblown fabric is consistent.
In some embodiments of the present invention, electret assembly 200 comprises: the insulating seat 210, the insulating seat 210 is set on the frame 100; the electrode wire 220, the electrode wire 220 is set up on the insulating seat 210, the high-voltage power supply 300 is connected with the electrode wire 220; and a corona roller 230, wherein the corona roller 230 is arranged on the frame 100, the corona roller 230 is parallel to the wire electrode 220, and the melt-blown cloth passes through between the wire electrode 220 and the corona roller 230.
For example, as shown in fig. 1 to 3, in an example of electrostatically charging the lower surface of the meltblown fabric, the wire electrode 220 is located below the corona roller 230, the wire electrode 220 is parallel to the corona roller 230, the meltblown fabric passes through the gap between the wire electrode 220 and the corona roller 230 while being in close contact with the corona roller 230, the high voltage power supply 300 is connected to the wire electrode 220 to discharge the wire electrode 220, so as to perform electrostatic charging on the lower surface of the meltblown fabric, and in order to prevent the wire electrode 220 from discharging to the frame 100, the wire electrode 220 is disposed on the insulating base 210, the insulating base 210 is disposed on the frame 100, and the insulating base 210 keeps the wire electrode 220 away from the frame 100. Because the wire electrode 220 is parallel to the corona roller 230 and the meltblown fabric is tightly attached to the corona roller 230, the shortest distances between the wire electrode 220 and the meltblown fabric are equal, the wire electrode 220 can uniformly discharge the meltblown fabric, and the electrostatic adsorption capacity of the meltblown fabric is consistent.
In some embodiments of the present invention, the rack 100 is further provided with a sliding slot 110, the insulating base 210 is disposed in the sliding slot 110, and the insulating base 210 includes: the base 211 is positioned on one side of the frame 100, the base 211 is provided with a notch 211d, the base 211 is provided with an electrifying bolt 211a, the electrode wire 220 is wound on the electrifying bolt 211a, and the electrifying bolt 211a is connected with the high-voltage power supply 300 through a lead; a clamping member 212, the clamping member 212 being located at the other side of the frame 100 and opposite to the base 211, the clamping member 212 having a protrusion 212a, the protrusion 212a passing through the sliding slot 110 and being fitted into the notch 211 d; and a clamping bolt 213, the clamping bolt 213 sequentially connecting the clamping member 212 and the base 211, so that the clamping member 212 is pressed toward the base 211 to fix the insulating base 210 on the rack 100.
For example, as shown in fig. 1 to 3, for example, in the case of performing electrostatic standing on the lower surface of the meltblown fabric, the chute 110 is disposed on the frame 100 along the vertical direction, the chute 110 is located below the corresponding corona roller 230, and the insulating base 210 is disposed in the chute 110, so that the position of the wire electrode 220 can be adjusted by sliding the insulating base 210, and the wire electrode 220 and the corona roller 230 are ensured to be parallel. Tightening the clamp bolt 213 clamps the clamp 212 to the base 211, the clamp 212 and the base 211 are respectively disposed at two sides of the rack 100, and tightening the clamp bolt 213 increases the friction between the insulating base 210 and the rack 100, so that the insulating base 210 cannot freely slide in the sliding slot 110. When the position of the wire electrode 220 needs to be adjusted, the clamping bolt 213 is loosened to reduce the friction between the insulating base 210 and the rack 100, so that the insulating base 210 can slide in the sliding groove 110.
In some embodiments of the present invention, a protrusion 211b is disposed on an end of the base 211 away from the bracket, a groove 211c is disposed on the protrusion 211b, and the wire electrode 220 is disposed in the groove 211 c.
For example, as shown in fig. 3, the wire electrode 220 is wound around the energizing bolt 211a and then extends from the concave groove 211c, and at this time, the distance from the wire electrode 220 located at the concave groove 211c to the corona roller 230 can be approximately regarded as the distance from the lowest point of the concave groove 211c to the corona roller 230. Therefore, the distances from the insulation bases 210 on both sides to the corona roller 230 are equal by only adjusting the positions of the insulation bases 210 on both sides, which means that the distances from both ends of the wire electrode 220 to the corona roller 230 are equal, and at this time, the wire electrode 220 is parallel to the corona roller 230. An operator can conveniently and safely calibrate the parallelism of the wire electrode 220 and the corona roller 230 without measuring the distance from the wire electrode 220 to the corona roller 230 in the meltblown electrostatic electret.
In some embodiments of the present invention, the rack 100 is provided with a scale at a position corresponding to the sliding groove 110. The scale can help an operator to correct the distance from the insulator base 210 to the corona roller 230, and the parallelism between the wire electrode 220 and the corona roller 230 can be calibrated without other tools.
In some embodiments of the present invention, there are two sets of electret assemblies 200, and the two sets of electret assemblies 200 discharge onto the front and back of the meltblown fabric, respectively. For example, as shown in fig. 2, two groups of electret assemblies 200 are arranged on the frame 100 in tandem, and can perform electrostatic electret treatment on the back and front of the melt-blown fabric simultaneously, thereby improving the working efficiency of the melt-blown fabric electrostatic electret device.
In some embodiments of the present invention, two tension rollers 400 are further included, and the two tension rollers 400 are respectively disposed on both sides of the two sets of electret assemblies 200. For example, as shown in fig. 1 and 2, two tension rollers 400 are provided at the front and rear ends of the frame 100, respectively. With the front corona roller 230, the tension roller 400 in front of it and the other corona roller 230 behind it are both above it so that the tensioned meltblown fabric can cling to its lower surface, thereby ensuring that electrostatic electret enables good and stable electrostatic adsorption of the meltblown fabric.
In some embodiments of the present invention, a ground line is further included, one end of the ground line is connected to the high voltage power supply 300, and the other end of the ground line is connected to the ground. As the melt-blown electrostatic electret equipment needs high voltage electricity, once electric leakage occurs, the grounding wire can bring the static electricity into the ground for releasing. Protecting operators and equipment.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A meltblown fabric electrostatic electret, comprising:
a frame (100);
the electret assembly (200), the electret assembly (200) is arranged on the frame (100), the electret assembly (200) has a gap through which the meltblown fabric can pass, and the electret assembly (200) is used for uniformly discharging the meltblown fabric; and
the high-voltage power supply (300) is arranged on the rack (100), the high-voltage power supply (300) is connected with the electret component (200), and the high-voltage power supply (300) is used for providing high-voltage electricity required by the electrostatic electret.
2. The meltblown electrostatic electret according to claim 1, wherein said electret assembly (200) comprises:
the insulating seat (210), the said insulating seat (210) is set up on the said stander (100);
the electrode wire (220), the electrode wire (220) is arranged on the insulating base (210), and the high-voltage power supply (300) is connected with the electrode wire (220); and
corona roller (230), corona roller (230) set up in frame (100), corona roller (230) with wire electrode (220) are parallel, and the meltblown fabric is followed wire electrode (220) with pass between corona roller (230).
3. The meltblown electrostatic electret according to claim 2, wherein a chute (110) is further disposed on the frame (100), the insulating base (210) is disposed in the chute (110), and the insulating base (210) comprises:
the base (211) is positioned on one side of the rack (100), the base (211) is provided with a notch (211d), an electrifying bolt (211a) is arranged on the base (211), the electrode wire (220) is wound on the electrifying bolt (211a), and the electrifying bolt (211a) is connected with the high-voltage power supply (300) through a conducting wire;
a clamping piece (212), wherein the clamping piece (212) is positioned at the other side of the frame (100) and is opposite to the base (211), the clamping piece (212) is provided with a protrusion (212a), and the protrusion (212a) penetrates through the sliding groove (110) and is embedded with the notch (211 d); and
a clamping bolt (213), the clamping bolt (213) sequentially connecting the clamping member (212) and the base (211) such that the clamping member (212) is pressed towards the base (211) to fix the insulating base (210) on the rack (100).
4. The electrostatic melt-blown electret according to claim 3, wherein a protrusion (211b) is provided at an end of the base (211) away from the support, a groove (211c) is provided on the protrusion (211b), and the electrode wire (220) is disposed in the groove (211 c).
5. The electrostatic melt-blown electret according to claim 3, wherein a scale is provided on the frame (100) at a position corresponding to the chute (110).
6. The meltblown fabric electrostatic electret according to claim 1, wherein there are two sets of said electret assemblies (200), and wherein said two sets of said electret assemblies (200) discharge respectively the front and back sides of the meltblown fabric.
7. The meltblown electrostatic electret according to claim 6, further comprising two tension rollers (400), said two tension rollers (400) being disposed on either side of two sets of said electret assemblies (200).
8. The meltblown electrostatic electret according to claim 1 further comprising a ground line, wherein one end of said ground line is connected to said high voltage power source (300) and the other end of said ground line is connected to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120977633.3U CN216141798U (en) | 2021-05-08 | 2021-05-08 | Electrostatic electret for melt-blown cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120977633.3U CN216141798U (en) | 2021-05-08 | 2021-05-08 | Electrostatic electret for melt-blown cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216141798U true CN216141798U (en) | 2022-03-29 |
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ID=80801331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120977633.3U Active CN216141798U (en) | 2021-05-08 | 2021-05-08 | Electrostatic electret for melt-blown cloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216141798U (en) |
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2021
- 2021-05-08 CN CN202120977633.3U patent/CN216141798U/en active Active
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