Adjustable non-woven fabric laying negative pressure air suction device

Abstract

The utility model relates to a kind of nonwoven fabric paving net negative pressure air suction device of adjustable, including negative pressure box, the outside of the negative pressure box is fixedly connected with negative pressure pipe, the top of the negative pressure box is set to opening, the top of the negative pressure box is fixedly connected with support plate, multiple sets of second negative pressure holes are equipped on the support plate, the position of corresponding second negative pressure hole on the support plate is equipped with sliding groove, the sliding groove is communicated with second negative pressure hole, sliding connection is achieved in the sliding groove with sliding plate, the outside of the sliding plate is fixedly connected with multiple sets of adjusting plate;In the utility model, according to the different types of nonwoven fabric adjustment air suction area, push sliding plate to slide, sliding plate drives adjusting plate to slide, adjusting plate slides adjustment, so second negative pressure hole's air suction area can be adjusted;Again open negative pressure fan, negative pressure fan is inhaled air in negative pressure box by negative pressure pipe, generates negative pressure;So sliding plate can be flexibly changed air suction area size in sliding process.

Description

Technical Field

[0001] This utility model relates to the field of suction device technology, and in particular to an adjustable non-woven fabric web-laid negative pressure suction device. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, is a type of fabric formed without spinning or weaving. It is made by bonding oriented or randomly arranged fibers together through friction, cohesion, or adhesion, or a combination of these methods. In the production process of nonwoven fabric, the web-laying process is a crucial step, directly affecting the quality and performance of the fabric. During web-laying, a negative pressure suction device plays a vital role. Its main function is to generate negative pressure to evenly adsorb the fibers onto the web-forming curtain, forming a uniform and flat fiber web.

[0003] Traditional negative pressure suction devices for nonwoven fabric web forming have several problems in practical applications. Firstly, their suction structures mostly use fixed suction chambers and inlets, making it impossible to flexibly adjust them according to different production needs and fiber characteristics. This makes it difficult to ensure the uniformity and stability of the fiber web when producing nonwoven fabrics of different specifications and types. For example, when producing thicker nonwoven fabrics, a fixed suction device may not provide sufficient suction, preventing the fibers from being tightly adhered to the web forming curtain, resulting in fiber accumulation and an uneven web surface. Conversely, when producing thinner nonwoven fabrics, excessive suction may cause over-compression of the fibers, damaging the fiber structure and affecting the feel and performance of the nonwoven fabric. Utility Model Content

[0004] In response to the technical problems mentioned in the background art, this utility model provides an adjustable non-woven fabric web-laying negative pressure suction device.

[0005] The technical solution adopted by this utility model is: an adjustable non-woven fabric web-laying negative pressure suction device, including a negative pressure box, a negative pressure pipe fixedly connected to the outside of the negative pressure box, an opening at the top of the negative pressure box, a support plate fixedly connected to the top of the negative pressure box, multiple sets of second negative pressure holes on the support plate, a sliding groove on the support plate corresponding to the position of the second negative pressure hole, the sliding groove communicating with the second negative pressure hole, a sliding plate slidably connected in the sliding groove, multiple sets of adjusting plates fixedly connected to the outside of the sliding plate, the adjusting plates slidably connected in the second negative pressure hole, and an adjusting component for adjusting and controlling the sliding plate on the outside of the negative pressure box.

[0006] A further feature of this invention is that a top plate is fixedly connected to the top of the support plate, and a first negative pressure hole is provided at the position of the second negative pressure hole corresponding to the top of the top plate.

[0007] A further feature of this invention is that a support mesh is fixedly connected to the top of the top plate.

[0008] A further feature of this invention is that a push plate is fixedly connected to the outside of the slide plate, and a spring is connected between the push plate and the negative pressure box.

[0009] A further feature of this invention is that the adjusting assembly includes a limiting plate rotatably connected to the outside of the push plate and a guide plate fixedly connected to the outside of the negative pressure chamber. The guide plate has multiple positioning ports on its outside, and the positioning ports correspond to the limiting plate.

[0010] A further feature of this invention is that the bottom of the limiting plate is provided with a limiting opening, a fixing post is fixedly connected to the outside of the push plate, and a snap-fit ​​spring is fixedly connected to the outside of the fixing post.

[0011] A further feature of this invention is that a lever is fixedly connected to the outside of the limiting plate.

[0012] The beneficial effects of this invention are as follows: In this invention, the suction area is adjusted according to different types of nonwoven fabrics. The sliding plate is pushed to slide, which in turn drives the adjusting plate to slide, thus adjusting the suction area of ​​the second negative pressure hole. Then, the negative pressure fan is turned on, and it draws air into the negative pressure chamber through the negative pressure pipe, generating negative pressure. Therefore, the size of the suction area can be flexibly changed during the sliding process of the sliding plate. For example, when producing thin nonwoven fabrics, the suction area can be reduced to enhance the negative pressure adsorption force; when producing thick nonwoven fabrics, the suction area can be expanded to ensure complete fiber coverage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the negative pressure box in this utility model;

[0015] Figure 3 This is a schematic diagram of the top plate structure in this utility model;

[0016] Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle;

[0017] Figure 5 yes Figure 4 A magnified structural diagram of region B in the middle;

[0018] Figure 6 This is a schematic diagram of the support plate in this utility model;

[0019] Figure 7 This is a schematic diagram of the skateboard structure in this utility model.

[0020] The diagram is marked as follows:

[0021] 1. Negative pressure chamber; 2. Negative pressure pipe; 3. Support mesh; 4. Top plate; 5. First negative pressure hole; 6. Support plate; 7. Second negative pressure hole; 8. Slide groove; 9. Slide plate; 10. Adjusting plate; 11. Push plate; 12. Spring; 13. Guide plate; 14. Positioning port; 15. Limiting plate; 16. Lever; 17. Limiting port; 18. Fixing post; 19. Clip-on spring. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described below.

[0024] To address the problems existing in the background technology, this application proposes the following technical solution: an adjustable nonwoven fabric web laying negative pressure suction device, including a negative pressure box 1, a negative pressure pipe 2 fixedly connected to the outside of the negative pressure box 1, an opening at the top of the negative pressure box 1, a support plate 6 fixedly connected to the top of the negative pressure box 1, multiple sets of second negative pressure holes 7 on the support plate 6, a sliding groove 8 on the support plate 6 corresponding to the second negative pressure holes 7, the sliding groove 8 communicating with the second negative pressure holes 7, a sliding plate 9 slidably connected inside the sliding groove 8, multiple sets of adjusting plates 10 fixedly connected to the outside of the sliding plate 9, the adjusting plates 10 slidably connected in the second negative pressure holes 7, and an adjusting component for adjusting and controlling the sliding plate 9 on the outside of the negative pressure box 1; In the nonwoven fabric production process, traditional negative pressure suction devices, due to their fixed suction area, are difficult to adapt to the production needs of nonwoven fabrics of different weights and materials, easily leading to problems such as uneven fiber distribution and inconsistent web laying thickness. The negative pressure chamber 1 of this device is integrally molded from high-strength engineering plastic with a smooth interior, effectively reducing airflow resistance and improving negative pressure efficiency. The negative pressure pipe 2 connects to an external negative pressure fan. Made of thickened rubber, the pipe offers excellent flexibility and wear resistance. The support plate 6, a core component, features array-type precision-machined second negative pressure holes 7 with a diameter error controlled within ±0.1mm, ensuring uniform airflow distribution. The slide rail 8 and slide plate 9 utilize high-precision rails, allowing operators to easily push the slide plate 9 with one hand. The adjusting plate 10 forms a clearance fit with the second negative pressure hole 7, allowing for flexible adjustment of the suction area size during sliding. For example, when producing thin nonwoven fabrics, the suction area can be reduced to enhance negative pressure adsorption; when producing thick nonwoven fabrics, the suction area can be expanded to ensure complete fiber coverage.

[0025] In this embodiment, a top plate 4 is fixedly connected to the top of the support plate 6. A first negative pressure hole 5 is provided at the position of the second negative pressure hole 7 on the top of the top plate 4. A support net 3 is fixedly connected to the top of the top plate 4. The design of the top plate 4 and the support net 3 further optimizes the negative pressure adsorption effect and the non-woven fabric forming quality. The support net 3 is woven from 304 stainless steel, and the mesh size is customized according to the requirements of the non-woven fabric product, with a minimum of 0.1mm², which can ensure effective fiber adsorption and prevent fine fibers from leaking through the mesh.

[0026] In this embodiment, a push plate 11 is fixedly connected to the outside of the slide plate 9. A spring 12 connects the push plate 11 to the negative pressure box 1. The adjustment assembly includes a limiting plate 15 rotatably connected to the outside of the push plate 11 and a guide plate 13 fixedly connected to the outside of the negative pressure box 1. The guide plate 13 has multiple positioning ports 14 on its outside, which correspond to the limiting plate 15. The bottom of the limiting plate 15 has a limiting port 17. A fixing post 18 is fixedly connected to the outside of the push plate 11. A snap-fit ​​spring 19 is fixedly connected to the outside of the fixing post 18. A lever 16 is fixedly connected to the outside of the limiting plate 15. The design of the top plate 4 and the support net 3 further optimizes the negative pressure adsorption effect and the non-woven fabric forming quality. The top plate 4 is made of aluminum alloy and the surface is anodized, which has good corrosion resistance and oxidation resistance, and can operate stably for a long time in high humidity and dusty environments.

[0027] The usage method of this embodiment is as follows:

[0028] First, adjust the suction areas of the first negative pressure hole 5 and the second negative pressure hole 7 according to the different types of non-woven fabrics, as follows:

[0029] Pushing the push plate 11 causes the slide plate 9 to slide, and the slide plate 9 causes the adjusting plate 10 to slide. The adjusting plate 10 slides and adjusts between the first negative pressure hole 5 and the second negative pressure hole 7, thereby adjusting the suction area between the first negative pressure hole 5 and the second negative pressure hole 7.

[0030] After adjustment, rotate the limiting plate 15 so that the limiting plate 15 is engaged in the positioning port 14. At the same time, the engaging spring 19 will also be engaged in the limiting port 17 to lock the position of the limiting plate 15. The engagement of the limiting plate 15 with the positioning port 14 can fix the position of the push plate 11 and the slide plate 9.

[0031] The fibers are then laid on the support net 3, and the negative pressure fan is turned on. The negative pressure fan draws air into the negative pressure box 1 through the negative pressure pipe 2 to generate negative pressure. Under the negative pressure of the first negative pressure hole 5 and the second negative pressure hole 7, the fibers are adsorbed onto the support net 3.

[0032] 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 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.

[0033] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. An adjustable non-woven fabric web-laying negative pressure suction device, characterized in that, The system includes a negative pressure chamber (1), to which a negative pressure pipe (2) is fixedly connected. The top of the negative pressure chamber (1) is set as an opening. A support plate (6) is fixedly connected to the top of the negative pressure chamber (1). Multiple sets of second negative pressure holes (7) are provided on the support plate (6). A sliding groove (8) is provided at the position of the second negative pressure hole (7) on the support plate (6). The sliding groove (8) communicates with the second negative pressure hole (7). A sliding plate (9) is slidably connected in the sliding groove (8). Multiple sets of adjusting plates (10) are fixedly connected to the outside of the sliding plate (9). The adjusting plates (10) are slidably connected in the second negative pressure hole (7). An adjusting component for adjusting and controlling the sliding plate (9) is also provided on the outside of the negative pressure chamber (1).

2. The adjustable non-woven fabric web-laying negative pressure suction device according to claim 1, characterized in that, The top of the support plate (6) is fixedly connected to a top plate (4), and a first negative pressure hole (5) is provided at the position of the second negative pressure hole (7) corresponding to the top of the top plate (4).

3. The adjustable non-woven fabric web-laying negative pressure suction device according to claim 2, characterized in that, The top of the top plate (4) is fixedly connected to a support net (3).

4. The adjustable non-woven fabric web-laying negative pressure suction device according to claim 1, characterized in that, The slide plate (9) is fixedly connected to the outside of a push plate (11), and a spring (12) is connected between the push plate (11) and the negative pressure box (1).

5. The adjustable non-woven fabric web-laying negative pressure suction device according to claim 4, characterized in that, The adjustment assembly includes a limiting plate (15) rotatably connected to the outside of the push plate (11) and a guide plate (13) fixedly connected to the outside of the negative pressure box (1). The guide plate (13) is provided with multiple sets of positioning ports (14) on its outside, and the positioning ports (14) correspond to the limiting plate (15).

6. The adjustable non-woven fabric web-laying negative pressure suction device according to claim 5, characterized in that, The bottom of the limiting plate (15) is provided with a limiting port (17), and the outside of the push plate (11) is fixedly connected with a fixing post (18), and the outside of the fixing post (18) is fixedly connected with a snap-fit ​​spring piece (19).

7. The adjustable non-woven fabric web-laying negative pressure suction device according to claim 6, characterized in that, The limiting plate (15) is externally fixedly connected to a lever (16).

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