Filtering device

Abstract

The utility model discloses a filtering device, which belongs to the technical field of glass fiber production and comprises a filtering pipe body and a filtering box. Wherein an impregnation space is formed in the filter pipe body, one end of the filter pipe body is provided with a glass fiber outlet and a material inlet, the other end of the filter pipe body is provided with a glass fiber inlet and a material outlet, and impregnation liquid can flow into the impregnation space from the material inlet and flow out from the material outlet; the glass fiber part can enter the dipping space from the glass fiber inlet and flow out from the glass fiber outlet; a filter part and a conveying mechanism are arranged in the filter box, the material outlet is communicated with the filter box, the impregnation liquid can enter the filter box from the material outlet and flow through the filter part, the filter part is used for filtering the impregnation liquid, and the conveying mechanism can convey the filtered impregnation liquid to the material inlet. By arranging opposite flow paths for the glass fiber component and the impregnation liquid, the surface of the glass fiber component is ensured to be smooth and clean, and the situation that glass fiber feathers are attached to the glass fiber component along with the impregnation liquid is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber production, in particular to a filtering device. Background Art

[0002] In the field of glass fiber production and processing, the impregnation process is a key step. The impregnation process usually refers to soaking the glass fiber material in a specific impregnation liquid (such as resin), allowing the impregnation liquid to fully penetrate the internal structure of the glass fiber material and between the fibers to achieve the purpose of improving the performance of the glass fiber material.

[0003] Existing filtration devices typically feature a discharge port at the bottom of the impregnation chamber, discharging the glass fiber hairiness that has settled there along with the resin. The resin is then filtered through the filtration device before being reintroduced into the chamber. The glass fiber hairiness settles to the bottom of the chamber by gravity, and the resin is discharged through the discharge port, driving the glass fiber hairiness. However, the high viscosity of the resin makes it inefficient to discharge the glass fiber hairiness from the chamber. This results in a large amount of glass fiber hairiness remaining in the chamber, which, along with the resin, adheres to glass fiber components, seriously affecting their quality. Utility Model Content

[0004] The purpose of the utility model is to provide a filtering device to solve the technical problems in the prior art that the filtering device has a poor filtering effect and a large amount of glass fiber hairiness still exists on the glass fiber component after filtering.

[0005] As conceived above, the technical solution adopted by the present utility model is:

[0006] A filtering device comprising:

[0007] A filter tube body is provided with an impregnation space therein, wherein a glass fiber outlet and a material inlet are provided at one end of the filter tube body, and a glass fiber inlet and a material outlet are provided at the other end of the filter tube body, wherein the impregnation liquid can flow into the impregnation space from the material inlet and flow out from the material outlet; and the glass fiber component can enter the impregnation space from the glass fiber inlet and flow out from the glass fiber outlet;

[0008] A filter box is provided with a filter element and a conveying mechanism, the material outlet is connected to the filter box, the impregnation liquid can enter the filter box from the material outlet and flow through the filter element, the filter element is used to filter the impregnation liquid, and the conveying mechanism can convey the filtered impregnation liquid to the material inlet.

[0009] Preferably, the material inlet and the material outlet are coaxially arranged and coincide with the axis of the filter tube body, and the glass fiber inlet and the glass fiber outlet are respectively provided in plurality and correspond one to one; the plurality of glass fiber inlets are arranged at intervals along the circumference of the material outlet on the periphery of the material outlet; the plurality of glass fiber outlets are arranged at intervals along the circumference of the material inlet on the periphery of the material inlet.

[0010] Preferably, the axis between any corresponding glass fiber inlet and glass fiber outlet is parallel to the axis of the filter tube body.

[0011] Preferably, a material guide plate is provided in the filter tube body near the material inlet, the material guide plate is coaxially arranged with the material inlet, a guide slope is formed on the material guide plate, and the guide slope extends obliquely from the material inlet to the material outlet in a direction away from the axis of the material inlet.

[0012] Preferably, a collecting plate is provided in the filter tube body near the material outlet, and the collecting plate extends inwardly from the impregnation space toward the material outlet.

[0013] Preferably, two removal plates are arranged opposite to each other at the glass fiber outlet, and a removal hole is formed between the two removal plates. The glass fiber component can be passed through the removal hole, and the outer surface of the glass fiber component can abut against the inner wall of the removal plate.

[0014] Preferably, a one-way check valve is provided at the glass fiber inlet, so that the glass fiber component cannot flow out of the glass fiber inlet.

[0015] Preferably, the diameter of the material inlet gradually decreases and then gradually increases along the extension direction of the filter tube body.

[0016] Preferably, at least two filter elements are detachably provided in the filter box, and the material outlet can be selectively connected to any one of the filter elements.

[0017] Preferably, at least two of the filter elements are arranged along the first straight line direction, the filter box includes a feed pipe and a slide rail, the material outlet is connected to the feed pipe, the slide rail extends along the first straight line direction, the feed pipe is slidably connected to the slide rail, and the feed pipe can selectively face any of the filter elements.

[0018] Beneficial effects of the utility model:

[0019] The filter device proposed by the utility model has the following characteristics: when in use, the glass fiber component enters the impregnation space from the glass fiber inlet and leaves the impregnation space from the glass fiber outlet; the impregnation liquid enters the impregnation space from the material inlet, and the impregnation liquid flushes the surface of the glass fiber component. Under the action of the impregnation liquid, the glass fiber hairiness on the surface of the glass fiber component falls off and flows toward the material outlet driven by the impregnation liquid and enters the filter box; the impregnation liquid mixed with the glass fiber hairiness falls on the filter element in the filter box for filtration; the filtered impregnation liquid is re-delivered to the material inlet through the conveying mechanism for repeated use.

[0020] By setting opposite flow paths for the fiberglass components and the impregnation liquid, the impregnation liquid flows in the opposite direction of the fiberglass components and discharges the fiberglass hairiness from the material outlet, ensuring a smooth surface finish. The filter element within the filter box finely filters the impregnation liquid flowing from the material outlet, effectively removing impurities, particularly fiberglass hairiness that can affect the quality of fiberglass components. This improves the purity of the impregnation liquid and provides high-quality impregnation liquid for subsequent impregnation operations. This reduces the amount of fiberglass hairiness that adheres to the components along with the impregnation liquid, thus ensuring component quality. The conveying mechanism recycles the impregnation liquid, improving its efficiency and reducing production costs. It also ensures a continuous and stable supply of impregnation liquid throughout the impregnation process, further optimizing the impregnation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a filter tube body provided by an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of a filter tube provided by an embodiment of the present utility model;

[0023] Figure 3 This is a top view of the filter tube provided by an embodiment of the present utility model;

[0024] Figure 4 It is a cross-sectional view of a filter box provided in an embodiment of the present utility model.

[0025] In the picture:

[0026] 100. Fiberglass parts;

[0027] 1. Filter tube body; 10. Immersion space; 11. Glass fiber inlet; 12. Glass fiber outlet; 13. Material inlet; 14. Material outlet; 15. Material guide plate; 16. Collecting plate; 17. Material removal plate; 18. One-way check valve; 2. Filter box; 21. Filter element; 22. Conveying mechanism; 23. Feed pipe; 24. Slide rail. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] See also Figures 1 to 4 The filter device provided by the embodiment of the present invention includes a filter tube body 1 and a filter box 2. An impregnation space 10 is formed inside the filter tube body 1. A glass fiber outlet 12 and a material inlet 13 are provided at one end of the filter tube body 1. A glass fiber inlet 11 and a material outlet 14 are provided at the other end of the filter tube body 1. Impregnation liquid can flow into the impregnation space 10 from the material inlet 13 and flow out from the material outlet 14. A glass fiber component 100 can enter the impregnation space 10 from the glass fiber inlet 11 and flow out from the glass fiber outlet 12. A filter element 21 and a conveying mechanism 22 are provided in the filter box 2. The material outlet 14 is connected to the filter box 2. Impregnation liquid can enter the filter box 2 from the material outlet 14 and flow through the filter element 21. The filter element 21 is used to filter the impregnation liquid. The conveying mechanism 22 can convey the filtered impregnation liquid to the material inlet 13.

[0033] The filter device proposed by the present invention, when in use, the glass fiber component 100 enters the impregnation space 10 from the glass fiber inlet 11 and leaves the impregnation space 10 from the glass fiber outlet 12; the impregnation liquid enters the impregnation space 10 from the material inlet 13, and the impregnation liquid flushes the surface of the glass fiber component 100. Under the action of the impregnation liquid, the glass fiber hairiness on the surface of the glass fiber component 100 falls off and flows toward the material outlet 14 driven by the impregnation liquid and enters the filter box 2. The impregnation liquid mixed with the glass fiber hairiness falls on the filter element 21 in the filter box 2 for filtration. The filtered impregnation liquid is re-delivered to the material inlet 13 by the conveying mechanism 22 for repeated use.

[0034] By setting opposite flow paths for the glass fiber component 100 and the impregnation liquid, the impregnation liquid flows in the opposite direction of the glass fiber component 100 and discharges the glass fiber hairiness from the material outlet 14, ensuring that the surface of the glass fiber component 100 is smooth. The filter element 21 provided in the filter box 2 can finely filter the impregnation liquid flowing out of the material outlet 14, effectively removing impurities therein, especially glass fiber hairiness that affects the quality of the glass fiber component 100, thereby improving the purity of the impregnation liquid, providing high-quality impregnation liquid for subsequent impregnation work, reducing the situation where glass fiber hairiness is attached to the glass fiber component 100 along with the impregnation liquid, and ensuring the quality of the glass fiber component 100. The provision of the conveying mechanism 22 realizes the recycling of the impregnation liquid, which not only improves the use efficiency of the impregnation liquid and reduces production costs, but also ensures the continuous supply and stability of the impregnation liquid during the impregnation process, further optimizing the impregnation effect.

[0035] It is worth noting that in this embodiment, the impregnation liquid is resin. During use, the filter tube 1 is placed vertically above the filter box 2, with one end of the filter tube 1, which is provided with the glass fiber outlet 12 and the material inlet 13, facing upward. After the resin is injected through the material inlet 13, it flows into the impregnation space 10 under the action of gravity, and finally flows out of the material outlet 14 and into the impregnation box. A traction device is also installed outside the filter device. Under the action of the traction device, the glass fiber component 100 is driven from bottom to top through the glass fiber inlet 11 into the impregnation space 10 and out of the glass fiber outlet 12. The traction device is a mechanical device known in the art, and its working principle and specific structure are not described in detail here.

[0036] To improve filtration efficiency, the material inlet 13 and material outlet 14 are coaxially arranged and coincide with the axis of the filter tube body 1, thereby ensuring smoother and more stable flow of the impregnation liquid in and out, reducing flow resistance. Multiple glass fiber inlets 11 and glass fiber outlets 12 are provided, each corresponding to the other. Multiple glass fiber inlets 11 are spaced apart along the circumference of the material outlet 14, while multiple glass fiber outlets 12 are spaced apart along the circumference of the material inlet 13. The design of multiple glass fiber inlets 11 and multiple glass fiber outlets 12 increases the number of channels for the glass fiber components 100 to enter and exit the impregnation space 10, improving production efficiency. The material inlet 13 and material outlet 14 are located in the center, while the glass fiber inlets 11 and glass fiber outlets 12 are evenly spaced around the periphery. During use, impregnation liquid only needs to be injected into the central material inlet 13. After entering the impregnation space 10, the impregnation liquid diffuses to the surrounding area, flushing the surfaces of each glass fiber component 100 and improving operational efficiency.

[0037] Specifically, to accurately control the flow of the impregnation liquid, a guide plate 15 is disposed within the filter tube body 1 near the material inlet 13. The guide plate 15 is coaxially arranged with the material inlet 13 and has a guide slope formed thereon. The guide slope extends obliquely from the material inlet 13 toward the material outlet 14 in a direction away from the axis of the material inlet 13. The guide slope effectively guides the flow direction of the impregnation liquid, controlling its flow path and distribution within the impregnation space 10 so that it evenly flushes the surfaces of each glass fiber component 100, thereby avoiding turbulent and uneven flow of the impregnation liquid.

[0038] More specifically, the diameter of the material inlet 13 first gradually decreases and then gradually increases along the extension direction of the filter tube body 1. This unique design of the material inlet 13 complies with the Laval effect and can effectively increase the flow rate of the impregnation liquid in the material inlet 13. The higher flow rate enhances the flushing force on the fluff on the surface of the glass fiber component 100, improves the shedding and discharge efficiency of the glass fiber fluff, thereby reducing the residual glass fiber fluff in the impregnation chamber and ensuring the quality of the glass fiber component 100. At the same time, the change in the diameter of the material inlet 13 avoids the existence of corners at the inlet. The design without corners can prevent the accumulation and residue of glass fiber fluff in these corners, allowing the impregnation liquid to flow more smoothly, reducing flow resistance and energy loss, and improving the efficiency and stability of the entire impregnation process.

[0039] Furthermore, the axis between any corresponding glass fiber inlet 11 and glass fiber outlet 12 is parallel to the axis of the filter tube body 1. This parallel axis design allows for a more coordinated and smoother flow of the impregnation liquid and movement of the glass fiber component 100 as it enters and exits the impregnation space 10. This prevents direct impact force on the glass fiber component 100, caused by the impregnation liquid's misalignment with the component's 100 movement path. Preventing impact from the impregnation liquid helps reduce uneven force and deformation of the glass fiber component 100 during the impregnation process, safeguarding the original structure and performance of the glass fiber component 100 and improving the quality and stability of the glass fiber component 100.

[0040] When the impregnation liquid completes the impregnation process and is about to flow out of the material outlet 14, a collecting plate 16 is provided within the filter tube body 1 near the material outlet 14 to prevent most of the impregnation liquid from adhering to the inner wall of the impregnation space 10 and affecting subsequent secondary use. The collecting plate 16 extends inwardly from the impregnation space 10 toward the material outlet 14 at an angle. The inclined collecting plate 16 guides the impregnation liquid to flow toward the material outlet 14, reducing any residual impregnation liquid on the inner wall. This improves the efficiency of the impregnation liquid collection, facilitates subsequent secondary use, reduces impregnation liquid waste, and saves costs.

[0041] Since impregnating liquids such as resin generally have a certain viscosity, they will inevitably adhere to the fiberglass component 100 during the flushing process. In order to prevent the impregnating liquid adhering to the fiberglass component 100 from affecting its performance and to prevent impregnating liquid from being wasted, two stripper plates 17 are arranged opposite to each other at the fiberglass outlet 12. A stripper hole is formed between the two stripper plates 17. The diameter of the stripper hole gradually decreases as it moves away from the fiberglass outlet 12. The fiberglass component 100 can be passed through the stripper hole, and the outer surface of the fiberglass component 100 can abut against the inner wall of the stripper plate 17. When the fiberglass component 100 passes through the stripper hole, the inner wall of the stripper plate 17 abuts against the outer surface of the fiberglass component 100, which can effectively scrape off excess impregnating liquid, prevent excessive impregnating liquid from adhering to the fiberglass component 100 and affecting its performance, help maintain the original characteristics and quality of the fiberglass component 100, and ensure that it can perform as expected in subsequent use.

[0042] It is understandable that the above-mentioned material removal plate 17 is made of a material with a certain degree of flexibility to prevent scratching the surface of the glass fiber component 100. Specifically, the material removal plate 17 can be made of rubber, silicone or polyester fiber, etc., which will not be described in detail here.

[0043] To prevent the fiberglass component 100 from accidentally falling out of the fiberglass inlet 11 during operation and causing damage, a one-way check valve 18 is installed at the fiberglass inlet 11, preventing the fiberglass component 100 from flowing out of the inlet 11. The one-way check valve 18 ensures that the fiberglass component 100 can only enter the impregnation chamber 10 from the fiberglass inlet 11 in the predetermined direction and cannot flow out in the opposite direction. This maintains the stability and orderliness of the production process and improves production efficiency. Specifically, the one-way check valve 18 utilizes a flexible silicone sheet that is tilted toward the impregnation chamber 10. One end of the flexible silicone sheet is fixed to the inner wall of the fiberglass inlet 11, while the other end naturally droops and tilts into the impregnation chamber 10. When the fiberglass component 100 enters the fiberglass inlet 11, it pushes the silicone sheet inward, opening it and allowing it to enter the impregnation chamber 10. However, if the fiberglass component 100 attempts to flow out in the opposite direction, the silicone sheet, due to its own elasticity and the pressure of the impregnation liquid, adheres tightly to the inner wall of the fiberglass inlet 11, preventing the fiberglass component 100 from flowing out.

[0044] In other embodiments, the one-way check valve may also be a flap-type one-way check valve or a ball-type one-way check valve, etc., which is not limited here.

[0045] See also Figure 4 At least two removable filter elements 21 are provided within the filter box 2, and the material outlet 14 can selectively connect to any of the filter elements 21. Providing multiple removable filter elements 21 increases filtration flexibility. When one filter element 21 needs to be cleaned, repaired, or replaced, it can be quickly switched to another filter element 21, ensuring the continuity of filtration operations and avoiding interruptions to the entire production process due to problems with a single filter element 21, thereby improving production efficiency. Furthermore, the removable design makes maintenance and replacement of the filter elements 21 more convenient and quick, reducing maintenance costs and time.

[0046] Specifically, in this embodiment, the filter element 21 is a funnel structure made of stainless steel, with the large end of the filter element 21 facing the material outlet 14 and the small end connected to the conveying mechanism 22. In other embodiments, the filter element 21 can also be configured as a cylindrical filter structure or a corrugated plate filter structure, etc., which is not limited here.

[0047] The conveying mechanism 22 is a mechanical device currently available in the art, and its working principle and specific structure are not described in detail here.

[0048] To improve the flexibility of the filter elements 21, at least two filter elements 21 are arranged along a first straight line. The filter box 2 includes a feed pipe 23 and a slide rail 24. The material outlet 14 is connected to the feed pipe 23. The slide rail 24 extends along the first straight line. The feed pipe 23 is slidably connected to the slide rail 24, and the feed pipe 23 can selectively face any filter element 21. Therefore, if one of the filter elements 21 becomes clogged or needs to be replaced, the feed pipe 23 only needs to be pushed along the slide rail 24 to align it with the other filter element 21 to resume filtering, thereby improving the flexibility and controllability of the filtering operation.

[0049] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications are possible without departing from the spirit and scope of the present invention. Such changes and modifications are within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device, characterized in that: include: A filter tube body (1) is provided with an impregnation space (10) therein; one end of the filter tube body (1) is provided with a glass fiber outlet (12) and a material inlet (13); the other end of the filter tube body (1) is provided with a glass fiber inlet (11) and a material outlet (14); the impregnation liquid can flow into the impregnation space (10) from the material inlet (13) and flow out from the material outlet (14); the glass fiber component (100) can enter the impregnation space (10) from the glass fiber inlet (11) and flow out from the glass fiber outlet (12); A filter box (2) is provided with a filter element (21) and a conveying mechanism (22), the material outlet (14) is connected to the filter box (2), the impregnation liquid can enter the filter box (2) from the material outlet (14) and flow through the filter element (21), the filter element (21) is used to filter the impregnation liquid, and the conveying mechanism (22) can convey the filtered impregnation liquid to the material inlet (13).

2. The filtering device according to claim 1, characterized in that The material inlet (13) and the material outlet (14) are coaxially arranged and coincide with the axis of the filter tube body (1); the glass fiber inlet (11) and the glass fiber outlet (12) are respectively provided in plurality and correspond one to one; the plurality of glass fiber inlets (11) are arranged at intervals along the circumference of the material outlet (14) on the outer periphery of the material outlet (14); and the plurality of glass fiber outlets (12) are arranged at intervals along the circumference of the material inlet (13) on the outer periphery of the material inlet (13).

3. The filtering device according to claim 2, characterized in that The axis between any corresponding glass fiber inlet (11) and glass fiber outlet (12) is parallel to the axis of the filter tube body (1).

4. The filtering device according to claim 2, characterized in that A material guide plate (15) is provided in the filter tube body (1) near the material inlet (13). The material guide plate (15) is coaxially arranged with the material inlet (13). A guide slope is formed on the material guide plate (15). The guide slope extends obliquely from the material inlet (13) to the material outlet (14) in a direction away from the axis of the material inlet (13).

5. The filtering device according to claim 2, characterized in that A material collecting plate (16) is provided in the filter tube body (1) near the material outlet (14), and the material collecting plate (16) extends inwardly from the impregnation space (10) to the material outlet (14).

6. The filtering device according to any one of claims 1 to 5, characterized in that: Two removal plates (17) are arranged opposite to each other at the glass fiber outlet (12), and a removal hole is formed between the two removal plates (17). The glass fiber component (100) can be passed through the removal hole, and the outer surface of the glass fiber component (100) can abut against the inner wall of the removal plate (17).

7. The filtering device according to any one of claims 1 to 5, characterized in that: A one-way check valve (18) is provided at the glass fiber inlet (11), so that the glass fiber component (100) cannot flow out of the glass fiber inlet (11).

8. The filtering device according to any one of claims 1 to 5, characterized in that: The diameter of the material inlet (13) first gradually decreases and then gradually increases along the extension direction of the filter tube body (1).

9. The filtering device according to any one of claims 1 to 5, characterized in that: At least two filter elements (21) are detachably provided in the filter box (2), and the material outlet (14) can selectively communicate with any one of the filter elements (21).

10. The filtering device according to claim 9, characterized in that At least two of the filter elements (21) are arranged along a first straight line direction, the filter box (2) comprises a feed pipe (23) and a slide rail (24), the material outlet (14) is connected to the feed pipe (23), the slide rail (24) extends along the first straight line direction, the feed pipe (23) is slidably connected to the slide rail (24), and the feed pipe (23) can selectively face any of the filter elements (21).

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