A static electricity elimination device for nonwoven fabric production

Abstract

This application discloses an electrostatic elimination device for nonwoven fabric production, belonging to the field of nonwoven fabric production technology. It includes a base, with a first side plate and a second side plate fixed to both ends of the upper surface of the base. A hollow guide roller is rotatably mounted between the first and second side plates. The surface of the guide roller has several air guide grooves along the axial direction, each groove containing several air holes. A housing is fixed to the outer side of the first side plate, housing an ion fan. The housing is internally connected to the guide roller. A duct parallel to the guide roller is also fixed to the top of the first side plate, communicating with the housing. An axially oriented air jet groove is located at the lower end of the duct. The beneficial effect of this application is that it provides an electrostatic elimination device for nonwoven fabric production, which not only improves the efficiency and thoroughness of electrostatic elimination on both sides of the nonwoven fabric but also possesses self-cleaning capabilities, ensuring stability during long-term operation and resulting in good overall performance.

Description

Technical Field

[0001] This application relates to the field of nonwoven fabric production technology, and more specifically, to an electrostatic elimination device for nonwoven fabric production. Background Technology

[0002] During the production and processing of nonwoven fabrics, the high-speed friction, contact, and separation between fibers and equipment easily generate and accumulate significant static charges. These static charges can lead to a series of problems, such as nonwoven fabric adhering to equipment, difficulties in entanglement, dust pollution from the air attracted to the fabric surface, and even electric shock or fire hazards to operators, seriously affecting production efficiency and product quality.

[0003] Currently, existing technologies often use ion blowers or ion bars to selectively blow static electricity onto one side of the nonwoven fabric during its movement. However, single-sided blowing is insufficient to simultaneously treat static electricity on both sides of the nonwoven fabric, especially when the nonwoven fabric is wrapped around guide rollers, where static electricity on the inner surface in contact with the roller is even more difficult to eliminate, thus affecting the static electricity elimination effect.

[0004] Therefore, this application proposes an electrostatic elimination device for nonwoven fabric production to solve the above-mentioned technical problems. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] The purpose of this application is to address the shortcomings of the prior art by providing a static electricity elimination device for nonwoven fabric production, thereby solving the problem that single-sided blowing cannot effectively handle static electricity on both sides of nonwoven fabric, especially the difficulty in eliminating static electricity on the inner surface when covering guide rollers.

[0007] To achieve the above objectives, this application provides the following technical solution: An electrostatic elimination device for nonwoven fabric production includes a base. A first side plate and a second side plate are fixed to the two ends of the upper surface of the base, respectively. A hollow guide roller is rotatably installed between the first side plate and the second side plate. The surface of the guide roller has a plurality of air guide grooves along the axial direction. A plurality of air holes are opened in each of the air guide grooves. A machine box is fixed to the outside of the first side plate. An ion fan is installed in the machine box. The machine box is connected to the interior of the guide roller. The top of the first side plate is also fixed with an air duct parallel to the guide roller. The air duct is connected to the chassis, and the lower end of the air duct is provided with an axially arranged air jet groove.

[0008] Furthermore, a mounting bracket is horizontally inserted and installed on the side of the chassis away from the first side panel, and the ion fan is fixed on the mounting bracket.

[0009] Furthermore, an air inlet is provided in the middle of the outer side of the mounting bracket, and a dust filter is laid inside the air inlet.

[0010] Furthermore, a handle is also installed on the outside of the mounting bracket.

[0011] Furthermore, a cleaning rod extending horizontally into the guide roller is fixed to the top of the second side plate, and multiple brushes are symmetrically fixed on both sides of the cleaning rod.

[0012] Furthermore, the number of brushes corresponds to the number of air holes, and the brushes automatically clean the air guide grooves as the guide roller rotates with the nonwoven fabric.

[0013] Furthermore, one end of the guide roller has an opening that connects to the inside of the housing, and the other end has a through hole through which the cleaning rod passes.

[0014] The beneficial effects of this application are as follows: In the above solution, the hollow guide roller, the air guide groove and air hole on its surface, and the combination of the chassis and ion fan connected to it can make the ion airflow penetrate evenly from the inside to the inner surface covered by the non-woven fabric, so as to effectively neutralize the static electricity on the hard-to-reach inner side over a large area and for a long time, achieving the effect of simultaneous and efficient static removal on both the inner and outer sides of the non-woven fabric. In the above solution, the cleaning rod fixed to the second side plate, the brush on it, and the rotatable guide roller work together to enable the brush to automatically and continuously clean the air guide groove and air hole when the guide roller is running, which can prevent the accumulation and blockage of fibers and dust, and help ensure the long-term smooth flow of the ion air path.

[0015] In summary, this device not only improves the efficiency and thoroughness of static elimination on both sides of nonwoven fabric, but also has self-cleaning capabilities, ensuring stability during long-term operation and providing excellent overall performance. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the structure guiding the nonwoven fabric in this application; Figure 2 This is a schematic diagram of the structure of this application; Figure 3 This is a schematic diagram of the internal structure of the guide roller in this application; Figure 4 This is a schematic diagram of the internal structure of the duct in this application; Figure 5 This is a schematic diagram of the cleaning rod of this application.

[0019] Figure label: 1. Base; 2. First side panel; 201. Chassis; 202. Mounting bracket; 203. Ionizing fan; 204. Air inlet; 3. Second side panel; 301. Cleaning bar; 302. Brush; 4. Guide roller; 401. Air guide channel; 402. Air hole; 5. Air duct; 501. Air jet channel. Detailed Implementation

[0020] The static elimination device for nonwoven fabric production provided in this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.

[0021] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0022] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0023] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Reference Figure 1-5As shown, this utility model provides an electrostatic elimination device for nonwoven fabric production, including a base 1. The base 1 is typically welded or cast from metal profiles and has sufficient rigidity and stability to support the upper components. At both ends of the upper surface of the base 1 along the length direction, a first side plate 2 and a second side plate 3 are respectively fixed by bolts. The two are installed parallel to each other and perpendicular to the base 1, together forming the rigid support frame of the device.

[0025] Between the first side plate 2 and the second side plate 3, a guide roller 4 with a hollow internal structure is rotatably mounted via a rolling bearing seat. The roller body of the guide roller 4 can be made of aluminum alloy or stainless steel tube, and its two ends are engaged with bearings through shaft heads to ensure that it can be driven by the friction of the traveling non-woven fabric. The main function of the guide roller 4 is to guide and support the non-woven fabric, and to allow the non-woven fabric to pass through with a wrapping angle of approximately 180 degrees, closely adhering to its cylindrical surface.

[0026] To achieve uniform ion air output, multiple slender strip-shaped air guide grooves 401 are parallel to each other along the axial direction on the cylindrical outer surface of the guide roller 4. These air guide grooves 401 are shallow to ensure that the strength of the roller body is not weakened. At the same time, on the bottom surface of each air guide groove 401, several sets of tiny air holes 402 are uniformly opened along its entire length, penetrating into the internal cavity of the guide roller 4, which can ensure the uniformity of air output.

[0027] To supply ion air, a sealed rectangular casing 201 is bolted to the outer wall of the first side panel 2. The casing 201 houses the core components for generating ions. Specifically, a horizontal insertion interface is provided on the side wall of the casing 201 away from the first side panel 2, into which a drawer-shaped mounting bracket 202 can be horizontally inserted and fixed. The ion fan 203 is securely mounted inside this mounting bracket 202 with screws. To ensure clean air intake and protect the ion generator, a circular air inlet 204 is provided in the center of the outer side panel of the mounting bracket 202, and a stainless steel dust filter is embedded within the air inlet 204. For ease of maintenance by operators, a handle is prominently installed on the outer side of the mounting bracket 202. The internal cavity of the housing 201 is connected to the central opening at one end of the guide roller 4 through a rotary joint. This rotary joint ensures the continuity of the air passage and allows the guide roller 4 to rotate freely relative to the fixed housing 201, so that the high-pressure ion air generated by the ion fan 203 can be smoothly and leak-free delivered to the internal cavity of the guide roller 4.

[0028] To simultaneously treat the static electricity on the outer surface of the nonwoven fabric, a cylindrical air duct 5 parallel to the axis of the guide roller 4 is fixed to the top of the first side plate 2 via a bracket. This air duct 5 is connected to the interior of the housing 201 via a flexible, insulated air duct, thus sharing the same ion air source generated by the ion fan 203. A narrow, elongated air jet groove 501, extending along the entire axis, is machined into the lower wall of the air duct 5, directly facing the nonwoven fabric. This air jet groove 501 can constrain and guide the airflow from the ion fan 203 into a uniform, continuous curtain-like ion air curtain, directly acting on the outer surface of the nonwoven fabric.

[0029] Meanwhile, to address the potential blockage of air pores 402 by fiber lint and dust during long-term operation, this device is equipped with an automatic cleaning mechanism. A cleaning rod 301, extending into the internal cavity of the guide roller 4, is horizontally fixed to the inner top of the second side plate 3. This cleaning rod 301 is a solid metal rod that passes through a through-hole in the center of the end cap at the other end of the guide roller 4 and is dynamically sealed by a sealing element to prevent air leakage. The portion of the cleaning rod 301 located inside the guide roller 4 has multiple sets of soft nylon or plastic brushes 302 symmetrically welded to or secured by clips on both sides. These brushes 302 effectively sweep over each air pore 402. Therefore, when the guide roller 4 rotates under the influence of the non-woven fabric, its inner wall undergoes a circular motion relative to the fixed cleaning rod 301. At this time, the brushes 302 continuously and automatically clean all the air pores 402 they pass through, removing any accumulated blockages and maintaining a consistently unobstructed airflow.

[0030] Working Principle: In actual operation, the nonwoven fabric travels along the surface of the guide roller 4 at a 180-degree angle. After the ion fan 203 is started, the generated ion air is divided into two paths: the first path enters the interior of the guide roller 4, forming a positive pressure inside the cavity. The ion air then seeps out through the air holes 402 and is guided by the air guide groove 401, acting evenly and gently on the inner surface of the nonwoven fabric in contact with it; the second path enters the air duct 5 through the connecting pipe, forming a concentrated and uniform air curtain through the air jet groove 501, acting on the outer surface of the nonwoven fabric, effectively ensuring the static elimination effect on the nonwoven fabric.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0032] It should be noted that this application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this application. To provide the public with a thorough understanding of this application, specific details are described in detail in the preferred embodiments, while those skilled in the art can fully understand this application without these details. Furthermore, to avoid unnecessary confusion regarding the substance of this application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0033] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A static electricity elimination device for nonwoven fabric production, comprising a base (1), characterized in that: The upper end face of the base (1) is fixed with a first side plate (2) and a second side plate (3) respectively. A hollow guide roller (4) is rotatably installed between the first side plate (2) and the second side plate (3). The surface of the guide roller (4) is provided with a number of air guide grooves (401) along the axial direction. A number of air holes (402) are provided in each of the air guide grooves (401). A machine box (201) is fixed on the outside of the first side plate (2). An ion fan (203) is provided in the machine box (201). The machine box (201) is connected to the inside of the guide roller (4). The top of the first side plate (2) is also fixed with an air duct (5) parallel to the guide roller (4). The air duct (5) is connected to the chassis (201), and the lower end of the air duct (5) is provided with an air jet groove (501) arranged along the axial direction.

2. The static electricity elimination device for nonwoven fabric production according to claim 1, characterized in that: The chassis (201) is horizontally connected to a mounting bracket (202) on the side away from the first side plate (2), and the ion fan (203) is fixed on the mounting bracket (202).

3. The static electricity elimination device for nonwoven fabric production according to claim 2, characterized in that: An air inlet (204) is provided in the middle of the outer side of the mounting bracket (202), and a dust filter is laid inside the air inlet (204).

4. The static electricity elimination device for nonwoven fabric production according to claim 3, characterized in that: A handle is also installed on the outside of the mounting bracket (202).

5. The static electricity elimination device for nonwoven fabric production according to claim 1, characterized in that: The top of the second side plate (3) is fixed with a cleaning rod (301) that extends horizontally into the guide roller (4), and multiple brushes (302) are symmetrically fixed on both sides of the cleaning rod (301).

6. The static electricity elimination device for nonwoven fabric production according to claim 5, characterized in that: The number of brushes (302) corresponds to the number of air holes (402), and the brushes (302) automatically clean the air guide grooves (401) as the guide roller (4) rotates with the nonwoven fabric.

7. The static electricity elimination device for nonwoven fabric production according to claim 6, characterized in that: One end of the guide roller (4) has an opening that connects to the inside of the housing (201), and the other end has a through hole through which the cleaning rod (301) passes.

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