Drying and dust removing equipment for non-woven fabric production

By introducing a drying zone and a dust removal zone into the nonwoven fabric drying equipment, and combining heating, vibration and dust collection technologies, the problem of dust and impurities being difficult to remove during the nonwoven fabric drying process is solved, achieving a highly efficient dust removal effect and improving product purity.

CN223795699UActive Publication Date: 2026-01-13GUANGDONG LITAO FILTER MATERIAL CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520136030.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-13
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Existing nonwoven fabric drying equipment, while removing moisture, is unable to effectively remove tiny dust particles and impurities, resulting in insufficient product purity.

Method used

Design a device that includes a drying zone and a dust removal zone. After drying with heating rods, dust and impurities are removed by a combination of a vibration mechanism and a dust collection mechanism, using an impact cylinder and a dust collection hood to achieve efficient dust removal.

Benefits of technology

This improves the purity of the nonwoven fabric, ensures the effective removal of dust and impurities during the drying process, and enhances product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223795699U_ABST
    Figure CN223795699U_ABST
Patent Text Reader

Abstract

The utility model discloses drying and dust removing equipment for non-woven fabric production, which relates to the technical field of non-woven fabric production and comprises a box body, a partition plate is arranged in the box body and divides the box body into a drying area and a dust removing area, and a cloth inlet communicated with the drying area and a cloth outlet communicated with the dust removing area are respectively arranged at the front end and the rear end of the box body. A cloth passing opening is formed in the partition plate, and compression roller sets are arranged in the cloth inlet, the cloth outlet and the cloth passing opening. A heating rod is arranged in the drying area and used for increasing the temperature in the drying area. Dust collection mechanisms acting on the interior of the dust removal area are arranged on the two sides of the box body, and an oscillation mechanism acting on cloth is arranged in the dust removal area; the cloth can be quickly dried in the drying area, and the dried cloth can be further subjected to dust removal in the dust removal area, so that dust and impurities in the cloth are removed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric production technology, and in particular to a drying and dust removal device for nonwoven fabric production. Background Technology

[0002] Non-woven fabric, also known as non-woven cloth, is a type of fabric formed without spinning or weaving, but rather processed through mechanical, thermal bonding, or chemical methods. It boasts advantages such as a short production process, high production speed, high output, low cost, and excellent environmental performance, making it widely used in agriculture, industry, medical, and daily life. For example, in the medical industry, it is used to make masks and surgical gowns; in everyday life, it can be used to manufacture shopping bags, wet wipes, and other products. Non-woven fabrics also possess characteristics such as high strength, good breathability, and easy biodegradability, making them a practical and environmentally friendly material choice. With technological advancements, the functionality and application range of non-woven fabrics continue to expand.

[0003] After processing, existing nonwoven fabrics require drying treatment using a drying device. For example, a drying device for nonwoven fabric production, with publication number CN222279174U, utilizes a double-headed screw on the inner side of the mounting frame to drive two sets of lifting frames to move relative to each other via threaded blocks. This causes the rotating shafts on the inner sides of the two sets of lifting frames to drive the extrusion pads to perform double extrusion on the top and bottom surfaces of the nonwoven fabric, thereby squeezing out the moisture contained in the nonwoven fabric and achieving dehydration treatment, thus improving drying efficiency. However, this patented solution still has some shortcomings in actual use. For example, although the nonwoven fabric is cleaned before drying, there may still be tiny dust or impurity particles inside. These particles are difficult to completely remove due to electrostatic effects or the structure embedded between fibers. Currently, most drying equipment on the market only focuses on moisture removal and ignores the need to further improve product purity, lacking effective dust and impurity removal functions.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying and dust removal device for non-woven fabric production, comprising a box body, with a partition inside the box body dividing the box body into a drying zone and a dust removal zone. The front end and rear end of the box body are respectively provided with a fabric inlet communicating with the drying zone and a fabric outlet communicating with the dust removal zone. The partition is provided with a fabric passage opening, and pressure roller groups are provided inside the fabric inlet, fabric outlet, and fabric passage opening.

[0007] Heating rods are installed in the drying zone to increase the temperature inside the drying zone;

[0008] The box body is equipped with dust collection mechanisms on both sides that act on the dust removal area, and the dust removal area is equipped with a vibration mechanism that acts on the fabric.

[0009] The oscillation mechanism includes two rotating shafts disposed inside the dust removal zone. The two rotating shafts are diagonally positioned inside the dust removal zone. Each of the two rotating shafts is provided with a swing arm, and the two swing arms are arranged opposite to each other. The end of each swing arm is provided with an impact cylinder.

[0010] Two drive motors are installed on one side of the housing, and the two rotating shafts are connected to the drive motors after passing through the housing at one end.

[0011] As a further embodiment of this utility model: the dust collection mechanism includes two dust collection air pumps installed on the housing, each dust collection air pump has an air suction pipe and an exhaust pipe at both ends, the air suction pipe is connected to a dust collection plate, the dust collection plate is connected to multiple dust collection pipes, and dust collection hoods are set on both sides inside the dust removal area, with the dust collection pipes connected to the dust collection hoods.

[0012] As a further embodiment of this utility model: an opening is provided at the top of the drying zone, a blower is installed in the opening, and a first filter is provided on the blower.

[0013] As a further embodiment of this utility model: a water guide block is provided at the lower end of the inlet, and the top surface of the water guide block is arranged with a curved structure from high to low towards the outside of the box.

[0014] As a further embodiment of this utility model: the top and bottom walls inside the dust removal zone are provided with two fixing sleeves, and the two fixing sleeves correspond to the positions of the two impact cylinders respectively;

[0015] The inner side of the fixed sleeve is provided with a magnetic attracting element, and the side of the impact cylinder opposite to the fixed sleeve is provided with a magnetically attracted piece corresponding to the magnetic attracting element.

[0016] As a further embodiment of this utility model: the swing arm and the impact cylinder have cavities inside.

[0017] As a further embodiment of this utility model: a dust filter box is also provided at the upper end of the box body, and the exhaust pipe of the dust suction pump is connected to the inside of the dust filter box. An air outlet is provided on the side of the dust filter box away from the dust suction pump, and a second filter screen is provided in the air outlet.

[0018] As a further embodiment of this utility model, a door is also rotatably mounted on one side of the dust filter box via a hinge.

[0019] As a further embodiment of this utility model: the pressure roller assembly includes an upper roller and a lower roller, and both sides of the upper roller and the lower roller are rotatably connected to the housing via rotating shafts. A rotating motor is installed on the outside of the housing, and the rotating shaft on one side of the lower roller passes through the housing and is driven by the rotating motor.

[0020] Compared with the prior art, the beneficial effects of this technical solution are as follows: when the fabric passes through the drying zone, the heating rod starts to work to increase the temperature inside the drying zone, so that the moisture inside the fabric evaporates, thereby completing the drying of the fabric. At the same time, the fan converts the outside air into airflow and blows it into the drying zone. The airflow is heated when it passes through the heating rod. How the hot airflow acts on the fabric improves the drying efficiency of the fabric and can quickly remove the moisture contained in the fabric.

[0021] After the fabric is dried, it enters and exits the dust removal area through the fabric inlet and outlet. During this process, two drive motors reciprocate in both directions, causing two rotating shafts to rotate slightly. Each rotating shaft drives a swing arm, which in turn drives two impact cylinders to strike the fabric. Because the two rotating shafts are positioned diagonally above and below each other within the dust removal area, the two impact cylinders strike different areas on the top and bottom of the fabric. The impact force causes tiny dust or impurity particles inside the fabric to detach. These particles are then quickly sucked away by a dust extraction mechanism, thus removing dust and impurities from the fabric and improving its purity.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the oscillation mechanism structure of this utility model;

[0027] Figure 4This is a schematic diagram of the dust collection mechanism of this utility model;

[0028] Figure 5 yes Figure 2 Enlarged schematic diagram of a local structure at point A;

[0029] The corresponding labels in the attached diagram are explained as follows:

[0030] 1. Box body; 2. Partition; 3. Drying area; 4. Dust removal area; 5. Fabric inlet; 6. Fabric outlet; 7. Fabric passage; 8. Pressure roller assembly; 81. Upper roller; 82. Lower roller; 9. Heating rod; 10. Dust collection mechanism; 101. Dust collection air pump; 102. Suction pipe; 103. Exhaust pipe; 104. Dust collection plate; 105. Suction pipe; 106. Dust collection hood; 11. Vibration mechanism; 111. Rotating shaft; 112. Swing arm; 113. Impact cylinder; 114. Cavity; 12. Drive motor; 13. Blowing fan; 14. First filter screen; 15. Fixing sleeve; 16. Magnetic suction component; 17. Magnetic suction plate; 18. Dust filter box; 181. Second filter screen; 182. Box door; 19. Rotating motor; 20. Water guide block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-5 A drying and dust removal device for nonwoven fabric production includes a housing 1. The housing 1 is equipped with a partition 2, which divides the housing 1 into a drying zone 3 and a dust removal zone 4. The front end and rear end of the housing 1 are respectively provided with a fabric inlet 5 connected to the drying zone 3 and a fabric outlet 6 connected to the dust removal zone 4. The partition 2 is provided with a fabric passage 7. The fabric inlet 5, the fabric outlet 6 and the fabric passage 7 are all provided with a pressure roller group 8. The pressure roller group 8 includes an upper roller 81 and a lower roller 82. Both sides of the upper roller 81 and the lower roller 82 are rotatably connected to the housing 1 through a rotating shaft. A rotating motor 19 is installed on the outside of the housing 1. The rotating shaft on one side of the lower roller 82 passes through the housing 1 and is driven by the rotating motor 19.

[0033] The fabric enters the drying zone 3 through the inlet 5 of the box 1 for drying. Then, it enters the dust removal zone 4 through the throughlet 7 of the partition 2 for dust removal. Finally, it exits the box 1 through the outlet 6. The box 1 is connected to a fabric winding device (not shown in the figure). When the fabric passes through the inlet 5, throughlet 7, and outlet 6 of the box 1, the pressure roller group 8 can transport the fabric to ensure smooth transport. The pressure roller group 8 at the inlet 5 also has the effect of squeezing the fabric entering the drying zone 3, thereby squeezing out the moisture inside the fabric in advance, so that the fabric dries quickly inside the drying zone 3 and avoids poor drying effect. The pressure roller group 8 consists of an upper roller 81 and a lower roller 82, which are rotatably connected to the box 1 on both sides through rotating shafts. When the fabric needs to pass through the gap between the upper roller 81 and the lower roller 82, the lower roller 82 is driven to rotate by the rotating motor 19, thereby providing axial force to transport the fabric into the box 1.

[0034] A heating rod 9 is installed inside the drying zone 3 to increase the temperature inside the drying zone 3;

[0035] The box 1 is equipped with a dust collection mechanism 10 on both sides that acts inside the dust removal zone 4, and a vibration mechanism 11 that acts on the fabric is installed inside the dust removal zone 4.

[0036] The oscillation mechanism 11 includes two rotating shafts 111 disposed inside the dust removal zone 4. The two rotating shafts 111 are diagonally positioned inside the dust removal zone 4. Each of the two rotating shafts 111 is provided with a swing arm 112, and the two swing arms 112 are arranged opposite to each other. The end of the swing arm 112 is provided with an impact cylinder 113.

[0037] Two drive motors 12 are installed on one side of the housing 1, and two rotating shafts 111 pass through the housing 1 at one end and are connected to the drive motors 12 for driving.

[0038] Specifically, when the fabric passes through the drying zone 3, the heating rod 9 starts working to increase the temperature inside the drying zone 3, causing the moisture inside the fabric to evaporate, thus completing the drying of the fabric. Then, the fabric enters and exits the dust removal zone 4 through the fabric inlet 7 and the fabric outlet 6. During this process, two drive motors 12 work in both forward and reverse directions, driving two rotating shafts 111 to rotate slightly. The two rotating shafts 111 drive two swing arms 112 respectively, and the two swing arms 112 drive two impact cylinders 113 to impact the fabric. Since the two rotating shafts 111 are in a diagonal position inside the dust removal zone 4, the two impact cylinders 113 impact different areas on the top and bottom of the fabric respectively. The impact force generated by the impact causes tiny dust or impurity particles inside the fabric to detach. Then, the dust suction mechanism 10 quickly sucks away the dust and impurity particles that have detached and are floating in the air, thereby removing the dust and impurities inside the fabric and improving the purity of the fabric.

[0039] Among them, the drive motor 12 is preferably a servo motor. The servo motor can precisely control its rotation angle and speed, thereby realizing the small-angle reciprocating rotation of the rotating shaft 111, and thus achieving precise angle control and frequency adjustment.

[0040] In this embodiment, reference Figure 1 , Figure 2 and Figure 4 Furthermore, the dust collection mechanism 10 includes two dust collection air pumps 101 installed on the housing 1. The dust collection air pumps 101 are provided with suction pipes 102 and exhaust pipes 103 at both ends. The suction pipes 102 are connected to the dust collection plate 104. The dust collection plate 104 is connected to multiple dust collection pipes 105. Dust collection hoods 106 are set on both sides inside the dust removal area 4. The dust collection pipes 105 are connected to the dust collection hoods 106.

[0041] Specifically, the dust collection mechanism 10 consists of a dust collection air pump 101, a suction pipe 102 and an exhaust pipe 103 leading out from the dust collection air pump 101, a dust collection plate 104 connected to the suction pipe 102, a dust collection pipe 105 connected to the dust collection plate 104, and a dust collection hood 106 located on both sides inside the non-dust collection area 4 and connected to the dust collection pipe 105. When dust collection is required, the dust collection air pump 101 is run, and the suction pipe 102 generates suction. This suction acts on the dust collection hood 106 through the dust collection plate 104 and the dust collection pipe 105. The dust collection hood 106 sucks away the air inside the dust collection area 4 and discharges it through the exhaust pipe 103. Dust and impurities in the air are sucked away by the dust collection hood 106 under the action of airflow, thereby completing the dust discharge.

[0042] In this embodiment, reference Figure 2 Furthermore, it is proposed that a dust filter box 18 is also provided at the upper end of the box body 1, and the exhaust pipe 103 of the dust suction pump 101 is connected to the inside of the dust filter box 18. An air outlet is provided on the side of the dust filter box 18 away from the dust suction pump 101, and a second filter screen 181 is provided in the air outlet.

[0043] The air pump 101 sucks in air containing dust and impurities, which is then discharged through the exhaust pipe 103 into the dust filter box 18. The airflow is then discharged through the air outlet on the other side of the dust filter box 18. During the discharge process, the second filter 181 intercepts the dust and impurities in the airflow, keeping them inside the dust filter box 18, thus forming a complete dust removal system that combines suction and filtration.

[0044] In this embodiment, reference Figure 1 Furthermore, it is proposed that a door 182 is rotatably mounted on one side of the dust filter box 18 via a hinge; and the dust accumulated inside the dust filter box 18 can be cleaned well through the door 182.

[0045] In this embodiment, reference Figures 1-2Furthermore, it is proposed that the top of the drying zone 3 has an opening, a blower 13 is installed in the opening, and a first filter 14 is installed on the blower 13.

[0046] Specifically, while the heating rod 9 heats the temperature inside the drying zone 3, the fan 13 converts the outside air into airflow and blows it into the drying zone 3. The airflow is heated when it passes through the heating rod 9. The hot airflow acts on the fabric, thereby improving the drying efficiency of the fabric and quickly removing the moisture contained in the fabric.

[0047] In this embodiment, reference Figure 2 Furthermore, it is proposed that a water guide block 20 be provided at the lower end of the inlet 5, and the top surface of the water guide block 20 is set from high to low towards the outside of the box 1 with a curved structure.

[0048] More specifically, when the fabric enters the drying zone between the pressure rollers 8 at the inlet 5, the water squeezed out by the pressure rollers 8 will form a water flow or water droplets that fall onto the water guide block 20. The top surface of the water guide block 20 is arranged with a curved structure from high to low towards the outside of the box 1, which can effectively guide the water flow to the outside. Preferably, a water-filling frame or the like (not shown in the figure) can be added to the lower end of the water guide block 20 to collect the water squeezed out from the fabric, so as to prevent water from depositing in the drying zone 3 and affecting the drying effect.

[0049] In this embodiment, reference Figure 2 and Figure 5 Furthermore, it is proposed that two fixing sleeves 15 are provided on the top and bottom walls inside the dust removal zone 4, and the two fixing sleeves 15 correspond to the positions of the two impact cylinders 113 respectively.

[0050] A magnetic attractor 16 is provided on the inner side of the fixed sleeve 15, and a magnetically attracted piece 17 corresponding to the magnetic attractor 16 is provided on the side of the impact cylinder 113 opposite to the fixed sleeve 15.

[0051] Specifically, by using the magnetic suction piece 16 (magnet) provided on the inner side of the fixing sleeve 15, and in conjunction with the magnetically attracted piece 17 (iron piece) on the impact cylinder 113, the position of the impact cylinder 113 can be fixed when not in use, especially the upper impact cylinder 113, which can be fixed when not in use to prevent it from blocking the passage of the fabric when used next time.

[0052] In this embodiment, reference Figure 2 , Figure 3 and Figure 5 Furthermore, it is proposed that the swing arm 112 and the impact cylinder 113 have cavities 114 inside.

[0053] Preferably, both the swing arm 112 and the impact cylinder 113 have uniform cavities 114 inside, which can reduce the overall weight. At the same time, the impact cylinder 113 is preferably made of silicone or rubber. Silicone or rubber has flexible properties, which can reduce the direct hard impact on the fabric while ensuring that the impact force is formed on the fabric during the impact, so as to protect the fabric from damage.

[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drying and dust removal device for nonwoven fabric production, characterized in that, Includes a box body (1), inside which is a partition (2), which divides the box body (1) into a drying zone (3) and a dust removal zone (4). The front end and rear end of the box body (1) are respectively provided with a fabric inlet (5) connected to the drying zone (3) and a fabric outlet (6) connected to the dust removal zone (4). The partition (2) is provided with a fabric passage (7), and pressure roller groups (8) are provided inside the fabric inlet (5), the fabric outlet (6) and the fabric passage (7). A heating rod (9) is installed in the drying zone (3) to increase the temperature inside the drying zone (3); The box (1) is provided with a dust collection mechanism (10) on both sides that acts on the dust removal area (4), and a vibration mechanism (11) that acts on the fabric is provided inside the dust removal area (4). The oscillation mechanism (11) includes two rotating shafts (111) disposed inside the dust removal zone (4). The two rotating shafts (111) are diagonally positioned inside the dust removal zone (4). Both rotating shafts (111) are provided with swing arms (112), and the two swing arms (112) are arranged opposite to each other. The ends of the swing arms (112) are provided with impact cylinders (113). Two drive motors (12) are installed on one side of the housing (1), and the two rotating shafts (111) are connected to the drive motors (12) after passing through the housing (1).

2. The drying and dust removal equipment for nonwoven fabric production according to claim 1, characterized in that, The dust collection mechanism (10) includes two dust collection air pumps (101) installed on the housing (1). The dust collection air pumps (101) are provided with suction pipes (102) and exhaust pipes (103) at both ends. The suction pipes (102) are connected to a dust collection plate (104). The dust collection plate (104) is connected to multiple dust collection pipes (105). Dust collection hoods (106) are set on both sides inside the dust removal area (4). The dust collection pipes (105) are connected to the dust collection hoods (106).

3. The drying and dust removal equipment for nonwoven fabric production according to claim 1, characterized in that, The drying zone (3) has an opening at the top, and a blower (13) is installed in the opening. A first filter (14) is provided on the blower (13).

4. The drying and dust removal equipment for nonwoven fabric production according to claim 1, characterized in that, A water guide block (20) is provided at the lower end of the inlet (5), and the top surface of the water guide block (20) is arranged from high to low towards the outside of the box (1) with a curved structure.

5. The drying and dust removal equipment for nonwoven fabric production according to claim 2, characterized in that, The top and bottom walls inside the dust removal zone (4) are provided with two fixing sleeves (15), and the two fixing sleeves (15) correspond to the positions of the two impact cylinders (113) respectively; The inner side of the fixed sleeve (15) is provided with a magnetic attracting element (16), and the side of the impact cylinder (113) opposite to the fixed sleeve (15) is provided with a magnetically attracted piece (17) corresponding to the magnetic attracting element (16).

6. The drying and dust removal equipment for nonwoven fabric production according to claim 5, characterized in that, The swing arm (112) and the impact cylinder (113) have cavities (114) inside.

7. The drying and dust removal equipment for nonwoven fabric production according to claim 2, characterized in that, The upper end of the housing (1) is also provided with a dust filter box (18), and the exhaust pipe (103) of the dust suction pump (101) is connected to the inside of the dust filter box (18). The dust filter box (18) has an air outlet on the side away from the dust suction pump (101), and a second filter screen (181) is provided in the air outlet.

8. The drying and dust removal equipment for nonwoven fabric production according to claim 7, characterized in that, The dust filter box (18) also has a door (182) that can be rotatably installed on one side via a hinge.

9. The drying and dust removal equipment for nonwoven fabric production according to claim 1, characterized in that, The pressure roller group (8) includes an upper roller (81) and a lower roller (82), and both sides of the upper roller (81) and the lower roller (82) are rotatably connected to the housing (1) through a rotating shaft. A rotating motor (19) is installed on the outside of the housing (1), and the rotating shaft on one side of the lower roller (82) passes through the housing (1) and is driven by the rotating motor (19).

Citation Information

Patent Citations

  • Drying device for non-woven fabric production

    CN222279174U