A diaphragm static removal device

Abstract

The present invention discloses a diaphragm static removal device. In order to overcome the problem in the prior art that the static electricity generated by the friction between the lithium battery diaphragm and the equipment mechanism during the production process leads to dust adsorption and the traditional equipment and instruments cannot remove static electricity completely, the present invention adopts a contact static removal method to discharge static electricity on the diaphragm surface, and combines an internally designed array micro-electromagnetic field to block charge adsorption and accelerate the movement of the charge discharge direction on the diaphragm surface, so as to discharge electricity more effectively.

Description

Technical Field

[0001] The invention relates to the field of diaphragm static removal, and in particular to a diaphragm static removal device. Background Art

[0002] The traditional method uses non-contact ion gas to neutralize the surface charge of the diaphragm, but some unclean charges still exist, and the friction between the diaphragm and the air and the roller during movement generates a large amount of charge, resulting in poor static removal effect of the traditional method. The traditional diaphragm static removal method uses ion rods to be set at the diaphragm unwinding point and the midway roller, which has defects such as small static removal range, more mechanical devices, and cannot be installed in a small space.

[0003] For example, a "low inertia anti-static diaphragm transmission roller" disclosed in Chinese patent documents, with the publication number CN107600948A, includes a roller body, which is a tubular structure, with a chrome layer plated on the outer circumference of the roller body, and the roller body is made of aluminum, and a convex ridge is provided on the inner circumference of the roller body. The chrome plating has good conductivity, does not generate static electricity accumulation, does not absorb air dust, and has high hardness, is not easy to wear, and has a long service life. However, the overall structure of the roller body is a full aluminum surface plated with chrome, which has weak compressive resistance and is easy to damage, and is expensive and not conducive to replacement at any time, and has a low cost performance. Summary of the invention

[0004] The present invention mainly solves the problems in the prior art that static electricity generated by friction between lithium battery diaphragms and equipment mechanisms during the production process leads to dust adsorption and that traditional equipment and instruments cannot completely remove static electricity; a diaphragm static removal device is provided, which adopts a contact static removal method to discharge static electricity on the surface of the diaphragm, and the diaphragm roller of the equipment mechanism is made conductive so that the charge on the surface of the diaphragm is transferred to the earth through the diaphragm roller for release; at the same time, the conductive rubber material is reasonably utilized, and the inside of the rubber has a porous conductive coating, which has conductivity when there is a charged object in direct contact; a micro-electromagnetic field is designed, and an array of micro-electromagnetic fields are designed inside the diaphragm roller, which can effectively block charge adsorption and accelerate the movement of charge discharge direction on the diaphragm surface, so that it can discharge electricity more effectively; the diaphragm roller is designed, with a steel shaft inside, a thin insulating layer wrapped on the surface, a rolling sleeve shaft on the outside, an array of conductive coils arranged on the outside and wrapped in an insulating layer, and a conductive rubber wrapped on the outermost side.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0006] The present invention includes a diaphragm roller, an array of micro-electromagnetic field blocking structures are arranged inside the diaphragm roller, and a contact-type charge derivation structure is arranged outside the micro-electromagnetic field blocking structure. The contact-type charge derivation structure can discharge static electricity generated by friction with air or unwinding during the movement of the diaphragm through direct contact; and the micro-electromagnetic field blocking structure can block charge adsorption and accelerate the movement of the charge derivation direction on the diaphragm surface.

[0007] Preferably, the array micro-electromagnetic field blocking structure comprises a plurality of evenly arranged array coils, which are connected to an external power supply device; when the array coils are powered on, a micro-electromagnetic field is generated, which acts on the charges in the electrostatic field on the surface of the diaphragm to generate Lorentz force, causing the charges to be subjected to force and produce positional displacement.

[0008] Preferably, the contact-type charge extraction structure includes a conductive rubber wrapped in the outermost layer of the diaphragm roller, and the conductive rubber is connected to a grounding device through a wire; when the diaphragm is unwound, the diaphragm belt passes through the diaphragm roller to reach the winding core position, and when the diaphragm is forced to contact the conductive rubber on the surface of the diaphragm roller, the static charge at the contact part of the diaphragm is transferred from the diaphragm surface to the conductive rubber, and the conductive rubber connecting wire transfers the charge to the grounding device for extraction to achieve the purpose of removing static electricity.

[0009] Preferably, the array micro-magnetic field blocking structure is covered with an insulating layer, and the conductive rubber is evenly arranged outside the insulating layer; when the diaphragm contacts the conductive rubber, the magnetic field generated by the array micro-magnetic field blocking structure being energized can accelerate the charge to gather and move to the conductive rubber, thereby achieving a more thorough effect of removing static electricity.

[0010] Preferably, the power-on device includes a power-on terminal and a power regulator, the array coil is connected to the power-on terminal, and the power-on terminal is externally connected to the power regulator. The appropriate voltage is adjusted by the external power regulator to control the rate of charge transfer according to actual conditions.

[0011] Preferably, the innermost layer of the diaphragm roller is provided with a diaphragm shaft core, and both ends of the diaphragm shaft core extend along the length direction of the diaphragm roller. An internal insulating layer is wrapped around the surface of the diaphragm shaft core, which can effectively ensure that the charge will not be transmitted to the shaft core and thus interfere with the operation of the overall device. The array coils are evenly spaced around the internal insulating layer.

[0012] Preferably, the power-on terminal is arranged at one end in the length direction of the diaphragm axis.

[0013] The beneficial effects of the present invention are:

[0014] 1. The diaphragm static electricity removal device of the present invention has obvious advantages in static electricity removal effect. The present invention adopts a contact static electricity removal method. The static electricity generated by the friction between the diaphragm and the air or the unwinding during the movement is discharged through direct contact with the conductive rubber roller; the conductive rubber roller is internally designed with an array of micro-electromagnetic fields to block charge adsorption and accelerate the movement of the charge discharge direction on the diaphragm surface, which can more thoroughly reduce the generation of static electricity while removing static electricity;

[0015] 2. The diaphragm static electricity removal device of the present invention has an optimized equipment structure. The present invention adopts contact static electricity removal and directly installs the static electricity removal mechanism on the diaphragm roller shaft, which saves space on the main board of the equipment, meets the static electricity removal needs, and is easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of a membrane roller of a membrane static removal device of the present invention;

[0017] Figure 2 It is a cross-sectional view of a membrane roller of a membrane static removal device of the present invention;

[0018] In the figure, 1, array coil, 2, power terminal, 3, power regulator, 4, grounding device, 5, conductive rubber, 6, insulating layer, 7, internal insulating layer, 8, diaphragm shaft core. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] Example:

[0021] A membrane static removal device according to this embodiment, such as Figure 1 and Figure 2 As shown, it includes a diaphragm roller, a conductive rubber 5 is arranged on the surface of the diaphragm roller, and the outside of the conductive rubber 5 is connected to the grounding device 4 through a wire so as to conduct the received charge to the grounding device 4; a diaphragm shaft core 8 is arranged inside the diaphragm roller, and the diaphragm shaft core 8 is arranged along the length direction of the diaphragm roller and is longer than the diaphragm roller, and one end of the reserved part thereof is provided with a power-on terminal 2, and the power-on terminal 2 is connected to the power supply voltage regulator 3 for adjusting the voltage of the internal structure; the outer surface of the diaphragm shaft core 8 is wrapped with an internal insulating layer 7 to achieve the effect of isolating the charge; the outer surface of the internal insulating layer 7 is evenly and spacedly arranged with an array coil 1 around the diaphragm shaft core 8, and the outer side of the array coil 1 is connected to the power-on terminal 2; the outer layer of the array coil 1 is wrapped with an insulating layer 6 for isolating the charge, and the outer side of the insulating layer 6 is tightly connected to the conductive rubber 5.

[0022] The principle and process of removing static electricity from the diaphragm roller of this embodiment are as follows:

[0023] a. Generation of static electricity on the diaphragm: The storage environment of the incoming diaphragm materials is relatively dry, and the friction between the diaphragm surface and the packaging bag generates a large amount of static charge. During the transfer or unwinding process of the diaphragm, the friction with the air or unwinding generates a large amount of static electricity.

[0024] b. Transfer of static charge: When the diaphragm is unwound, the diaphragm belt passes through the diaphragm roller to reach the winding core position. The diaphragm roller is designed to be conductive, that is, the surface of the diaphragm roller is covered with conductive rubber 5. When the diaphragm is forced to contact the conductive rubber 5 on the surface of the diaphragm roller, the static charge at the contact position of the diaphragm is transferred from the diaphragm surface to the conductive rubber 5. The conductive rubber 5 is connected to the wire to transfer the charge to the grounding device 4 for output to achieve the purpose of static electricity removal.

[0025] c. An array coil is designed inside the conductive rubber 5 of the diaphragm roller. The array coil 1 is connected to the power regulator 3 through the power terminal 2. When the array coil 1 is energized, a micro-electromagnetic field is generated, which acts on the charges in the electrostatic field on the surface of the diaphragm to generate a Lorentz force that causes the charges to shift in position. When the diaphragm contacts the conductive rubber 5, the charges are accelerated to gather and move toward the conductive rubber 5, thereby removing static electricity more thoroughly.

[0026] d. The power regulator 3 controls the voltage output to the array coil 1, thereby controlling the intensity of the micro-electromagnetic field generated by the array coil 1, so as to control the output electromagnetic field intensity according to the amount of electrostatic charge carried by different diaphragms, so as to achieve a perfect static electricity removal effect.

[0027] The present invention adopts a contact-type static electricity removal method. The static electricity generated by the friction with the air or the unwinding during the movement of the diaphragm is discharged through direct contact with the conductive rubber roller. The array micro-electromagnetic field designed inside the conductive rubber roller can block the charge adsorption and accelerate the movement of the charge discharge direction on the diaphragm surface, thereby more thoroughly reducing the generation of static electricity while removing static electricity. The equipment structure of the present invention has been optimized and adopts contact-type static electricity removal. The static electricity removal mechanism is directly installed on the diaphragm roller shaft, which saves space on the main board of the equipment and meets the static electricity removal needs. The diaphragm roller can be replaced according to the needs.

[0028] It should be understood that the embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A membrane static removal device, comprising a membrane roller, characterized in that: An array micro-electromagnetic field blocking structure is provided inside the diaphragm roller, and a contact-type charge extraction structure is provided outside the micro-electromagnetic field blocking structure. The array micro-electromagnetic field blocking structure comprises a plurality of evenly arranged array coils (1), and the contact-type charge extraction structure comprises a conductive rubber (5) wrapped around the outermost layer of the diaphragm roller, and the outer layer of the array coil 1 is wrapped with an insulating layer (6), and the outer part of the insulating layer (6) is tightly connected to the conductive rubber (5).

2. A diaphragm static removal device according to claim 1, characterized in that: The array coil (1) is connected to an external power supply device.

3. A diaphragm static removal device according to claim 1, characterized in that: The conductive rubber (5) is connected to the grounding device (4) via a wire.

4. A diaphragm static removal device according to claim 1 or 2, characterized in that: The array micro-electromagnetic field blocking structure is covered with an insulating layer (6) on the outside, and the conductive rubber (5) is evenly arranged on the outside of the insulating layer (6).

5. A diaphragm static removal device according to claim 2, characterized in that: The power supply device comprises a power supply terminal (2) and a power supply regulator (3); the array coil (1) is connected to the power supply terminal (2); and the power supply terminal (2) is externally connected to the power supply regulator (3).

6. A diaphragm static removal device according to claim 2, characterized in that: The innermost layer of the diaphragm roller is provided with a diaphragm shaft core (8), both ends of the diaphragm shaft core (8) extend along the length direction of the diaphragm roller, the surface of the diaphragm shaft core (8) is wrapped with an internal insulation layer (7), and the array coils (1) are evenly spaced and arranged around the internal insulation layer (7).

7. A diaphragm static removal device according to claim 5 or 6, characterized in that: The power supply terminal (2) is arranged at one end of the diaphragm shaft core (8) in the length direction.

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