A water removal device for non-absorbent single-strand materials

Abstract

This invention provides a dehydration device for non-absorbent single-strand materials, belonging to the field of medical devices. It includes a housing with a single-strand material inlet on one side and a single-strand material outlet on the opposite side. An air knife is positioned above the housing, with its outlet vertically aligned with a guide wheel assembly below. The guide wheel assembly consists of a set of guide wheels arranged in two rows, staggered vertically, guiding the single-strand material through the inlet into the housing in a continuous S-shaped path, finally exiting through the outlet. A drain outlet is located at the bottom of the housing. This invention uses an air knife and guide wheels to blow away moisture from the material surface, completely avoiding any impact on material quality during the dehydration process.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a water removal device for non-absorbent single-strand materials. Background Technology

[0002] Currently, the industry mainly uses two technical solutions for surface dehydration treatment of non-absorbent single-strand materials (such as synthetic fiber sewing thread). One is a hot air drying device, which evaporates the moisture on the material surface through high-temperature airflow. Although the dehydration effect is good, the hot air temperature can easily cause changes in the crystallinity of the single-strand material, affecting its physical properties (such as strength and elasticity), and the energy consumption is high. The other is a sponge adsorption device, which uses the water absorption property of the sponge to physically remove moisture. However, after the sponge is saturated with water, it needs to be frequently stopped and replaced, which seriously affects production efficiency. At the same time, long-term friction between the sponge and the material can easily generate dust that contaminates the material surface, which cannot meet the needs of continuous production.

[0003] Therefore, there is an urgent need for a solution that can effectively remove water, avoid material damage, and adapt to continuous production. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies by providing a dehydration device for non-absorbent single-strand materials. This device uses an air knife and guide wheel to blow away moisture from the material surface, completely avoiding any impact on the material quality during the dehydration process.

[0005] Technical solution: The present invention provides a dewatering device for non-absorbent single-strand materials, comprising a shell, a single-strand material inlet on one side of the shell, a single-strand material outlet on the opposite side of the single-strand material inlet, an air knife on the top of the shell, the air outlet of the air knife being vertically aligned with a guide wheel assembly below, the guide wheel assembly consisting of a set of guide wheels arranged in two rows, staggered vertically, guiding the single-strand material into the shell from the single-strand material inlet, traveling in a continuous S-shaped path, and finally exiting through the single-strand material outlet; a drain outlet is provided at the bottom of the shell.

[0006] The upper and lower rows of guide wheels form an S-shaped path, which can force the material to change direction continuously and prolong the residence time in the air knife action zone. The high-pressure airflow generated by the vertical air knife impacts the material surface and can directly peel off the attached water film. At the same time, the closed shell can constrain the airflow diffusion direction, and the wastewater is collected to the drain outlet by gravity.

[0007] Furthermore, the air outlet length of the air knife covers the full width of the guide wheel assembly, and the airflow direction forms an angle of 70° to 110° with the direction of travel of the single material; the air outlet length covers the width of the guide wheel assembly, which can eliminate the water removal blind zone caused by the attenuation of the edge airflow.

[0008] Furthermore, the air knife is a flat cavity with a gradually narrowing airflow channel inside. The air knife inlet is connected to a compressed air pipe, and the air knife outlet is a narrow slit-type air outlet. The cross-section of the cavity gradually narrows from the inlet to the outlet, which accelerates the airflow to form a high-pressure air curtain.

[0009] Furthermore, the guide wheel assembly includes a first row of guide wheels and a second row of guide wheels. The first row contains N guide wheels, where N≥2, and the second row contains N-1 guide wheels. The guide wheels in each row are arranged horizontally at equal intervals, and the center-to-center distance between any two adjacent guide wheels in each row is 1.5 to 2 times the guide wheel diameter. The difference between odd and even guide wheels can force the formation of symmetrical S-shaped peaks / troughs. Simultaneously, controlling the low center-to-center distance can accommodate high-tensile materials, while controlling the high center-to-center distance can accommodate low-strength materials.

[0010] Furthermore, the surface of the guide wheel is provided with U-shaped or V-shaped grooves, which are used to limit the lateral displacement of the single strand of material. To avoid friction affecting the material composition of the single strand, the guide wheel material can be made of a low-friction material, such as ceramic, stainless steel, or engineering plastics.

[0011] Furthermore, the guide wheel is detachably fixed to the wall panel of the housing via ordinary bearings, ensuring free rotation and reducing material traction resistance.

[0012] Furthermore, a compression spring is installed between the spring bearing located in the middle of the wall panel and the wall panel. The compression spring allows the spring bearing to float vertically, with a vertical floating stroke range of 5 to 15 mm. This setting can adaptively adjust the material tension, and the guide wheel will instantly displace when the tension fluctuates to maintain constant tension.

[0013] Furthermore, the bottom plate of the casing is tilted towards the drain outlet, utilizing gravity to allow water to flow freely and prevent wastewater accumulation.

[0014] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows:

[0015] (1) This invention achieves moisture stripping through an S-shaped path and the vertical impact of the air knife, which not only isolates water droplet splashing and directs wastewater discharge, but also avoids the risk of crystallization changes during hot air drying; and meets the requirement of uninterrupted operation of the production line.

[0016] (2) In this invention, when the guide wheel rotates at a set angular velocity, it can drive the surface air to form an attached airflow layer. This airflow layer is superimposed with the air flow perpendicular to the air knife, and then pressurized vortex is generated in the groove. The centrifugal force of the rotating airflow causes the water droplets to migrate to the groove wall, while the airflow of the air knife blows them away from the surface. When the material tension changes abruptly, the spring bearing is instantaneously unique, and the change in the position of the guide wheel can automatically make up for the path length. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a side view of the present invention. Detailed Implementation

[0019] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0020] like Figure 1 The present invention discloses a dewatering device for non-absorbent single-strand materials, characterized in that: it includes a shell 1, a single-strand material inlet 2 is provided on one side of the shell 1, a single-strand material outlet 3 is provided on the opposite side of the single-strand material inlet 2, an air knife 4 is provided on the top of the shell 1, the air outlet of the air knife 4 is vertically aligned with the guide wheel assembly 5 below, the guide wheel assembly 5 consists of a set of guide wheels arranged in two rows, staggered vertically, to guide the single-strand material from the single-strand material inlet 2 into the shell 1, through a continuous S-shaped path, and finally through the single-strand material outlet 3; a drain outlet 6 is provided at the bottom of the shell 1, and the bottom plate of the shell 1 is inclined toward the drain outlet 6.

[0021] The air knife 4 is a flat cavity with a gradually narrowing airflow channel inside. It has multiple air knife inlets 401, each connected to a compressed air pipe 7 via a branch pipe. It also has multiple air knife outlets 402, which are narrow slit-type outlets. The length of the air knife 4's outlet covers the full width of the guide wheel assembly 5, and the airflow direction forms an angle of 70° to 110° with the direction of travel of the single material.

[0022] The guide wheel assembly 5 includes a first row of guide wheels 501 and a second row of guide wheels 502. The first row of guide wheels 501 includes four guide wheels, and the second row of guide wheels 502 includes three guide wheels. The guide wheels in each row are arranged horizontally at equal intervals, and the center distance between any two adjacent guide wheels in each row is 1.5 to 2 times the diameter of the guide wheel. U-shaped grooves 505 are formed on the surface of the guide wheels to limit the lateral displacement of a single strand of material. Most of the guide wheels are detachably fixed to the wall panel of the outer casing 1 by ordinary bearings 503. A small number of guide wheels located in the middle of the wall panel are fixed to the wall panel by spring bearings 504. The spring bearing consists of a compression spring between the bearing and the wall panel, allowing the spring bearing 504 to float vertically within a range of 5 to 15 mm.

[0023] Workflow:

[0024] Non-absorbent single-strand materials, such as chemical fiber sewing thread / metal wire, are drawn out from the cold water tank and horizontally inserted into the outer shell inlet 1. They are arranged and passed through the guide wheel group in an alternating pattern until they reach the single-strand material outlet 3, forming a continuous S-shaped wavy path. The valve of the compressed air pipe (7) is opened to input room temperature compressed air. The air passes through the air knife gradually narrowing channel to form a narrow-slit laminar flow air curtain. The air curtain impacts the material surface in the guide wheel groove at a 90° vertical angle. Each row of guide wheels rotates in the same direction as the material travels. The rotation generates wall-attached airflow, which couples with the vertical airflow of the air knife to form a spiral vortex, thoroughly removing water accumulation in the dead corner of the groove. When the material tension fluctuates, the compression spring connected by the spring bearing deforms, and the guide wheel floats vertically, automatically compensating for changes in path length and maintaining a constant airflow impact angle. The peeled water droplets are subjected to gravity and airflow pressure difference and drip down along the side wall of the guide wheel groove. The inclined bottom plate guides the wastewater to the drain outlet. The material is guided by the guide wheel at the end of the S-shaped path, and the dried material is output from the single-strand material outlet to the next process.

[0025] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A dewatering device for non-absorbent single-strand materials, characterized in that: The device includes an outer shell (1), a single material inlet (2) on one side of the outer shell (1), a single material outlet (3) on the opposite side of the single material inlet (2), an air knife (4) on the top of the outer shell (1), the air outlet of the air knife (4) being vertically aligned with the guide wheel assembly (5) below, the guide wheel assembly (5) consisting of a set of guide wheels arranged in two rows, staggered vertically, to guide the single material from the single material inlet (2) into the outer shell (1), through a continuous S-shaped path, and finally out through the single material outlet (3); a drain outlet (6) is provided at the bottom of the outer shell (1).

2. The dewatering device for non-absorbent single-strand materials according to claim 1, characterized in that: The air outlet length of the air knife (4) covers the full width of the guide wheel assembly (5), and the airflow direction forms an angle of 70° to 110° with the direction of travel of the single material.

3. A dewatering device for non-absorbent single-strand materials according to claim 2, characterized in that: The air knife (4) is a flat cavity, and a gradually narrowing airflow channel is provided inside the air knife (4). The air knife inlet (401) of the air knife (4) is connected to a compressed air pipe (7), and the air knife outlet (402) of the air knife (4) is a narrow slit-type air outlet.

4. A dewatering device for non-absorbent single-strand materials according to claim 1, characterized in that: The guide wheel group (5) includes a first row of guide wheels (501) and a second row of guide wheels (502). The number of the first row of guide wheels (501) is N, where N≥2, and the number of the second row of guide wheels (502) is N-1. The guide wheels in each row are arranged horizontally at equal intervals, and the center distance between any two adjacent guide wheels in each row is 1.5 to 2 times the diameter of the guide wheel.

5. A dewatering device for non-absorbent single-strand materials according to claim 1, characterized in that: The surface of the guide wheel is provided with U-shaped or V-shaped grooves, which are used to limit the lateral displacement of a single strand of material.

6. A dewatering device for non-absorbent single-strand materials according to claim 1, characterized in that: The guide wheel is detachably fixed to the wall panel of the outer casing (1) via a common bearing (503).

7. A dewatering device for non-absorbent single-strand materials according to claim 6, characterized in that: A compression spring is provided between the spring bearing (504) located in the middle of the wall panel and the wall panel. The compression spring allows the spring bearing (504) to float vertically, and the vertical floating stroke range is 5 to 15 mm.

8. A dewatering device for non-absorbent single-strand materials according to claim 1, characterized in that: The bottom plate of the outer casing (1) is inclined toward the drain outlet (6).

Images