A non-contact continuous cleaning device for intelligent cloth inspection machine in narrow space

Abstract

This utility model discloses a non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces, belonging to the field of automated cleaning technology for textile machinery. The device includes an ionization neutralization unit, an air curtain stripping unit, and a vacuum recovery unit. Two sets of opposing electrostatic eliminators neutralize static electricity on the fabric. An air knife with an internal suction port connected to an external air supply pipe sprays a high-speed airflow to strip away contaminants. The opposing suction ports of the two sets of vacuum recovery pipes create negative pressure to recover dust. Structurally, it employs a staggered arrangement of air knives, arc-shaped bends at the suction port edges, flexible plug-and-play connections for the air supply pipes, and adjustable air knife opening. Its advantages include achieving non-contact continuous cleaning of fabrics in confined spaces, avoiding fabric damage, breaking electrostatic adsorption, compatibility with fabrics of different widths, improving cleaning efficiency and production flexibility, and possessing industrial application value.

Description

Technical Field

[0001] This utility model relates to the field of automated cleaning technology for textile machinery, and in particular to a non-contact continuous cleaning device for intelligent fabric inspection machines in confined spaces, which is suitable for continuous dust removal operations of various fabrics such as knitted and woven fabrics. Background Technology

[0002] In the field of automated cleaning technology for textile machinery, the quality of fabric surface cleaning directly affects the quality of finished products and production efficiency. Existing production lines are gradually upgrading towards compactness and intelligence, but traditional cleaning solutions face significant technical bottlenecks:

[0003] First, traditional dust removal equipment often adopts a large box-type structure, which occupies a lot of space and has poor layout flexibility, making it difficult to adapt to the space constraints of narrow production lines. Especially in multi-unit parallel or three-dimensional production lines, the equipment installation and maintenance costs increase significantly.

[0004] Secondly, while mainstream contact cleaning methods (such as brush rollers and rubber rollers) can remove larger particles of impurities, direct contact with the fabric surface can easily cause damage such as pilling and snagging, which has a significant impact on the quality of high-precision fabrics (such as silk and microfiber). In addition, the contact parts need to be replaced frequently, increasing downtime for maintenance.

[0005] Furthermore, static electricity is easily generated during the fabric production process due to friction, causing fine dust (such as fiber fragments and sizing particles) to be attracted to the fabric surface by the electrostatic field. Traditional negative pressure dust collection or mechanical beating methods are difficult to break the electrostatic attraction. The residual dust not only affects the appearance of the fabric, but may also cause problems such as uneven dyeing in subsequent processes, resulting in secondary pollution.

[0006] In addition, existing cleaning systems are usually designed for fabrics with fixed widths. When the production line switches to products of different specifications, the spacing between cleaning components needs to be adjusted manually or the entire set of equipment needs to be replaced. This is cumbersome and has poor compatibility, and cannot meet the needs of flexible production.

[0007] Therefore, how to achieve non-contact continuous cleaning in confined spaces, avoid fabric damage, completely eliminate electrostatic dust adsorption, and be compatible with multi-specification fabric operations has become a technical challenge that urgently needs to be solved in this field. Utility Model Content

[0008] In view of this, this utility model proposes a non-contact continuous fabric cleaning device for intelligent fabric inspection machines in narrow spaces. By combining an ionization neutralization unit, an air curtain stripping unit, and a vacuum recovery unit, it solves the problem of non-contact continuous removal of dust and thread ends from the fabric surface in narrow spaces, while overcoming the problem of secondary pollution caused by electrostatic adsorption.

[0009] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0010] A non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces includes an ionization neutralization unit, an air curtain peeling unit, and a vacuum recovery unit.

[0011] The vacuum recovery unit includes two sets of vacuum recovery pipes, each equipped with an air intake. The air intakes are positioned opposite each other, with a fabric channel in the middle. The structure of the vacuum recovery pipes and air intakes creates a bidirectional negative pressure cleaning channel. The opposing air intakes form a "clamping" airflow field, allowing pollutants on both sides of the fabric to be simultaneously adsorbed. This solves the cleaning blind spot problem of traditional single-sided vacuuming. The central fabric channel has a reserved variable space to accommodate fabrics of different thicknesses without the need to adjust the equipment spacing, meeting the needs of flexible production for rapid changeover.

[0012] The air curtain stripping unit includes air knives and air delivery pipes. There are two sets of air knives, each set located at the air intake of the vacuum recovery pipe. The air delivery pipes are located outside the vacuum recovery pipes and are connected to the air knives. The air knives are built into the air intake and the air delivery pipes are external, which further optimizes the airflow path and the space utilization of the equipment. The air knives are close to the pollution source, moving the high-speed airflow jet point forward to the inside of the air intake. The stripped pollutants can be quickly captured by negative pressure, reducing the risk of secondary resuspension. The external air delivery pipes avoid the internal pipelines from occupying cleaning space and reduce the lateral thickness of the device, making it suitable for narrow production line layouts.

[0013] The ionization neutralization unit includes two sets of static electricity eliminators, each positioned outside the vacuum recovery pipe at the corresponding location at the fabric inlet end. These two sets of opposing static electricity eliminators simultaneously neutralize static electricity on both surfaces and across the entire width of the fabric before it enters the cleaning area, breaking the electrostatic attraction between dust and the fabric. This lays the foundation for the efficient operation of the subsequent air curtain stripping unit. Specifically, the two sets of opposing static electricity eliminators correspond to the upper and lower surfaces of the fabric, using bipolar ion currents to simultaneously neutralize charges on both sides, preventing fabric shifting or uneven cleaning due to static residue on one side.

[0014] In a structure that optimizes the aforementioned solution, the air knife is located near the inner wall of the air intake, and the air outlets of two sets of air knives are staggered. The air knife is located inside the air intake, close to the inner wall of one side of the air intake, forming a larger space on one side and a smaller space on the other. The larger space and the position of the air knife on the opposite side cooperate to form a high-speed airflow, which carries away contaminants from the fabric surface and collects them by the vacuum recovery pipe. The smaller space is created by the suction of the vacuum recovery pipe, forming a negative pressure, which helps to carry away contaminants from the fabric surface. The larger and smaller spaces clean the fabric surface multiple times. The high-speed airflow on the wide side impacts the fabric surface, breaking the adhesion of particles, while the negative pressure of the air intake on the narrow side creates an adsorption force, achieving dynamic cleaning of "front flushing and rear suction". The airflow from the air knives on both sides collides, forming a vortex airflow on the fabric surface, which peels off dust in the gaps between the fibers, significantly improving the cleaning efficiency compared to traditional single airflow.

[0015] In a structure that optimizes the aforementioned solution, the gas supply pipe and the air knife are connected by a plug-in connection. Preferably, the gas supply pipe and the air knife are connected by a flexible pipe, which is plugged in and secured with a clamp. This flexible connection reduces the limitations on the installation of the gas supply pipe, allowing the gas supply pipe and the air knife to be installed separately and connected by a flexible pipe in narrow equipment interiors.

[0016] In a structure that optimizes the aforementioned solution, the air inlets of the two sets of vacuum recovery pipes are staggered, with the air inlets of the two sets of vacuum recovery pipes offset vertically by one end. This enhances the three-dimensional cleaning coverage capability and increases the adsorption and cleaning area of ​​the equipment without increasing its size.

[0017] In a structure that optimizes the aforementioned solution, the edge of the suction port of the vacuum recovery pipe is provided with an arc-shaped bend. The arc-shaped bend ensures that when the fabric enters the fabric channel, accidental contact with the suction port will not cause fabric damage such as pilling or snagging. Even if the fabric shifts by 3-5cm due to tension fluctuations, the arc-shaped bend design ensures that the contact occurs via a smooth, rounded surface rather than a right-angle scraping, significantly reducing the risk of snagging. Simultaneously, the arc-shaped structure guides the airflow at the fabric edge for a smooth transition, reducing turbulence and improving the negative pressure stability of the suction port.

[0018] In a structure that optimizes the aforementioned scheme, the electrostatic eliminator is provided with pores and electrodes at intervals. The electrostatic eliminator has an elongated structure with pores and electrodes alternately arranged on it. The electrodes eliminate electrostatic adsorption on the fabric surface through a bipolar ion generating array, and the fabric is blown with air through the pores to pre-remove contaminants with low adhesion. The electrodes generate an ion current of ±5kV-±15kV, reducing the electrostatic potential of the fabric surface and breaking the electrostatic adsorption energy of dust. Compressed air is injected through the pores to pre-remove dust with an adhesion of ≤0.05mN (such as floating dust and short fibers), reducing the load on subsequent air curtain peeling and lowering energy consumption.

[0019] In a structure that optimizes the aforementioned solution, an opening adjustment bolt is provided at the air outlet end of the air knife. The width of the air knife opening is controlled by adjusting the tightness of the opening adjustment bolt.

[0020] Furthermore, the air outlet width of the air knife is 0.3-3mm.

[0021] The aforementioned structure establishes a fabric adaptability adjustment mechanism. Through the opening adjustment bolt at the air knife outlet, stepless control of airflow intensity is achieved. Specifically, operators can adjust the outlet width via the bolt, allowing the corresponding airflow velocity to continuously vary within the range of 50-150 m / s. For lightweight fabrics (such as silk), a 3mm opening is used, controlling the airflow velocity at 50-80 m / s to avoid fiber impact damage. For heavyweight fabrics (such as denim), a 0.3mm opening is used, increasing the airflow velocity to 120-150 m / s to effectively remove stubborn stains such as clumps of sizing. Simultaneously, a standardized interface establishes a parameter table corresponding to the opening and fabric weight, which operators can directly access via the HMI, reducing setup time and improving the device's compatibility and cleaning efficiency for various fabric types, including knitted and woven fabrics.

[0022] In a structure that optimizes the aforementioned solution, a frame is also included, on which the ionization neutralization unit, the gas curtain stripping unit, and the vacuum recovery unit are fixed. The ionization neutralization unit is fixed to the frame crossbeam, the vacuum recovery unit is fixed to both sides of the frame crossbeam, and the air knife in the gas curtain stripping unit is fixed inside the vacuum recovery pipe.

[0023] In a structure that optimizes the aforementioned solution, several guide rollers are further included. Guide rollers are positioned above the feed end and below the discharge end of the fabric channel. One guide roller is positioned above and one below the fabric channel to guide the fabric into the device's fabric channel without contacting the device, thus preventing damage such as pilling or snagging. Other guide rollers can be added as needed.

[0024] In a structure that optimizes the aforementioned solution, the two sets of static eliminator bars are arranged in a staggered configuration. This staggered arrangement enhances the overall static neutralization efficiency across the entire fabric width. The misaligned arrangement of the two sets of static eliminator bars creates an "X-shaped" ion flow convergence area on the fabric, increasing the ion density at the fabric edges by three times compared to parallel arrangements. This ensures simultaneous elimination of static electricity at the fabric edges, effectively solving the problem of incomplete removal of dust adsorbed by static electricity at the edges of wide fabrics in traditional cleaning methods.

[0025] Compared to existing technologies, the non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces described in this utility model solves the problem of non-contact continuous removal of dust and thread ends from fabric surfaces in confined spaces, while also overcoming the problem of secondary pollution caused by electrostatic adsorption. Specific beneficial effects are as follows:

[0026] This invention achieves efficient adaptation to narrow production lines through a modular and compact layout of an ionization neutralization unit, an air curtain stripping unit, and a vacuum recovery unit. Its lateral thickness is significantly reduced compared to traditional equipment, allowing it to fit into equipment with limited installation space. The flexible plug-and-play connection between the external air supply pipe and the air knife further optimizes space utilization. Employing a full-process non-contact cleaning system, the air knife sprays high-speed airflow to remove contaminants, combined with the arc-shaped bending of the air intake and the non-contact guidance of the fabric rollers, significantly reducing the fuzzing rate and snagging risk of high-precision fabrics. Two sets of static elimination bars are arranged opposite or staggered to... The reduced static potential of the fabric, combined with pre-blowing of air pores and negative pressure recovery, achieves a dust capture efficiency of over 98% for particles ≤10μm in diameter. Through the opposing and staggered layout of the suction inlets and adjustable air knife opening, the airflow speed dynamically adapts to different fabrics from 50-150m / s. The staggered suction inlets and the "X-shaped" ion flow coverage of the static elimination rod eliminate blind spots in cleaning wide fabric edges. The overall technology, through innovations in space compactness, non-contact cleaning, precise static control, and flexible production, significantly improves cleaning quality and efficiency, possessing outstanding industrial application value and market competitiveness. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a structural schematic diagram of the non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces described in this utility model.

[0029] Figure 2 This is a side view of the non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces, as described in this utility model.

[0030] Figure 3 This is an enlarged view of a partial structure of the static eliminator rod described in this utility model.

[0031] Figure 4 This is an overall structural diagram of the non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces described in this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Static eliminator bar; 2. Air knife; 3. Gas delivery pipe; 4. Vacuum recovery pipe; 5. Guide roller; 6. Frame.

[0034] 11. Vent, 12. Electrode, 21. Opening adjustment bolt, 41. Air inlet, 411. Arc bend. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] like Figure 1-4As shown, a non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces integrates an ionization neutralization unit, an air curtain stripping unit, and a vacuum recovery unit through a frame 6 made of aluminum alloy profiles with adjustable beam height. It is suitable for production lines with limited installation space. The ionization neutralization unit includes two sets of horizontally opposed and staggered static elimination rods 1, fixed to the beam of the frame 6. Air holes 11 and electrodes 12 are alternately arranged at 20mm intervals on their surfaces to reduce the electrostatic potential of the fabric surface. Simultaneously, 0.15MPa compressed air is injected through the air holes to pre-remove floating dust. The air curtain stripping unit has two sets of air knives 2 embedded in the inner walls of the suction ports 41 of the vacuum recovery pipes 4 on the left and right sides, close to the fabric surface. The air outlets are close to the inner walls of the suction ports, forming an asymmetrical space with wide and narrow sides, and are staggered. The width of the air outlet is adjusted by the opening bolt 21. The airflow velocity is infinitely adjustable between 0.3-3mm, corresponding to 50-150m / s, with an accuracy of ±0.01mm. The air supply pipe 3 is connected to the air knife via a flexible rubber tube. The two sets of vacuum recovery pipes 4 of the vacuum recovery unit are staggered vertically. The edge of the air intake 41 is provided with an arc bend 411. The rear end is connected to a 3kW vacuum pump with an air volume of 1500m³ / h and a 5μm filter bag via a flange pipe. The auxiliary structure includes guide rollers 5 above the feed end and below the discharge end. The air supply pipe and the air knife are connected by a quick-release clamp. During operation, the fabric enters through the guide rollers. The static electricity is neutralized and pre-blown by the static elimination rod. The air knife sprays airflow according to the HMI preset parameters (e.g., 1mm opening and 90m / s wind speed for 120g / m² knitted fabric) to remove pollutants. The upper and lower air intakes form a three-dimensional negative pressure field to capture dust. After cleaning, the fabric is discharged through the rear guide roller.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces, characterized in that: Includes an ionization neutralization unit, a gas curtain stripping unit, and a vacuum recovery unit; Vacuum recovery unit, the vacuum recovery unit includes vacuum recovery pipe (4), the vacuum recovery pipe (4) is two sets, the vacuum recovery pipe (4) is provided with air inlet (41), the air inlet (41) is arranged opposite to each other, and a fabric channel is left in the middle; The air curtain stripping unit includes an air knife (2) and an air supply pipe (3). The air knife (2) consists of two sets, which are respectively set at the air intake (41) inside the vacuum recovery pipe (4). The air supply pipe (3) is set outside the vacuum recovery pipe (4). The air knife (2) is connected to the air supply pipe (3). The ionization neutralization unit includes two sets of static elimination rods (1), which are respectively set outside the vacuum recovery pipe (4) and at the corresponding position of the material feeding end of the fabric channel.

2. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: The air knife (2) is located near the inner wall of the air inlet (41), and the air outlets of the two sets of air knives (2) are staggered.

3. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: The gas transmission pipeline (3) and the air knife (2) are connected by a pipe plug-in connection.

4. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: The air inlets (41) of the two sets of vacuum recovery pipes (4) are staggered.

5. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: The air inlet (41) of the vacuum recovery pipe (4) has an arc-shaped bend (411) at its edge.

6. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: The static eliminator (1) is provided with pores (11) and electrodes (12) at intervals.

7. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: The air knife (2) is equipped with an opening adjustment bolt (21) at the air outlet end.

8. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 7, characterized in that: The air outlet width of the air knife (2) is 0.3-3mm.

9. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: It also includes a frame (6), on which the ionization neutralization unit, the gas curtain stripping unit, and the vacuum recovery unit are fixed.

10. The non-contact continuous fabric cleaning device for intelligent fabric inspection machines in confined spaces according to claim 1, characterized in that: It also includes several guide rollers (5), and guide rollers (5) are provided above the feed end of the fabric channel and below the discharge end of the fabric channel.

Images