A kind of plastic hot melt fuse air drying device

Abstract

The application relates to a kind of air drying devices of plastic hot melt wire, relate to plastic processing auxiliary equipment technical field.It includes adjustable rack and air drying machine box;The adjustable rack includes support strut, telescopic strut and locking bolt, the air drying machine box is fixedly connected with the telescopic strut away from the one end of support strut;It further includes incoming line guide wheel, outgoing line guide wheel, conveying roller and air supply system;The air supply system includes centrifugal fan, main air supply pipeline, a plurality of branch air supply pipelines and air outlet.The air drying device of plastic hot melt wire of the application can adjust the position of telescopic strut, optimize the air drying effect, combine the conveying of conveying roller and the effect of parallel air drying airflow, ensure that hot melt wire is in non-contact state Efficient, uniform air drying treatment, maintain the surface not to be scratched or contaminated, while keeping the dry and neat working environment.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment for plastic processing, and in particular to a drying device for plastic hot melt wire. Background Technology

[0002] In the production process of plastic hot melt filaments (such as 3D printing consumables, fishing lines, and wire mesh), the filaments that have just been extruded from the extruder and cooled into shape usually need to pass through a water tank for cooling and shaping. Water droplets or a layer of water film will adhere to the surface of the filaments drawn from the water tank. If this is not removed in time, it will affect the subsequent winding quality, the appearance of the product, and may even cause internal defects in the product due to residual moisture, affecting its mechanical properties.

[0003] In existing technologies, simple wiping methods or fixed air knives are commonly used for drying. Wiping methods are prone to scratches or residual fibers due to contact and are inefficient for high-speed production lines; while traditional single air knife air delivery suffers from uneven air distribution, inconvenient distance adjustment, and localized over- or under-drying of the wire, and also has high energy consumption and unsatisfactory drying results. Therefore, there is an urgent need for a dedicated device that can uniformly, non-contactly, and efficiently dry moving wires. Utility Model Content

[0004] In order to address the problems of current plastic hot melt wire drying devices, which suffer from design features, the inventors have found that wiping methods are prone to scratches or residual fibers due to contact, and are inefficient for high-speed production lines. Traditional single air knife air delivery suffers from uneven air distribution, inconvenient distance adjustment, and over- or under-drying of localized areas of the wire, as well as high energy consumption and unsatisfactory drying effects. Therefore, this application provides a plastic hot melt wire drying device.

[0005] The drying device for plastic hot melt wire provided in this application adopts the following technical solution: it includes an adjustable frame and a drying box disposed above the adjustable frame; The adjustable frame includes a support rod, a telescopic support rod slidably connected to the support rod, and a locking bolt disposed between the support rod and the telescopic support rod. The locking bolt passes through the support rod and connects the telescopic support rod. The air drying chamber is fixedly connected to the end of the telescopic support rod away from the support rod. It also includes an inlet guide wheel at one end of the drying chamber, an outlet guide wheel at the other end of the drying chamber, a conveying roller evenly distributed between the inlet guide wheel and the outlet guide wheel, and an air supply system on the support rod; the conveying roller is rotatably mounted on the drying chamber to support and convey the plastic hot melt wire.

[0006] By adopting the above technical solution, the device mainly includes an adjustable frame and a drying chamber mounted on it. The adjustable frame is constructed by support rods and slidably connected telescopic rods, ensuring that the height of the drying chamber is adjustable. The telescopic rods are fixed by locking bolts, allowing the air supply position of the drying chamber to accommodate plastic hot melt wires of different diameters. Inlet and outlet guide wheels guide the hot melt wires into and out of the drying area, while conveyor rollers support and transport the hot melt wires. The air supply system provides a uniformly distributed airflow for drying, ensuring that surface moisture in both the circumference and length directions of the hot melt wires is thoroughly and evenly blown off through parallel air nozzles. Each branch air supply duct is equipped with a control valve, which can independently adjust the airflow to adapt to different production needs and achieve precise drying control.

[0007] As a preferred embodiment, the air supply system includes a centrifugal fan, a main air supply duct, several branch air supply ducts, and air outlets.

[0008] A mounting bracket is fixedly installed on the lower end face of the centrifugal fan, and the mounting bracket is fixedly connected to the adjacent support rod. The air outlet of the centrifugal fan is connected to the main air supply duct. The main air supply duct is arranged in a direction parallel to the axial direction of the conveying roller; The branch air supply ducts are connected in parallel to the main air supply duct; Each of the branch air supply ducts is connected to one of the air outlets. The air nozzles are suspended above the conveying rollers, and all the air nozzles are arranged sequentially along the conveying direction of the hot melt wire.

[0009] By adopting the above technical solution, the centrifugal fan is securely supported by a mounting frame and is primarily responsible for providing powerful airflow. The main air supply duct is arranged along the axial direction of the conveyor rollers to ensure uniform airflow along the wire conveying direction. Branch air supply ducts are connected in parallel to the main air supply duct, allowing for adjustment of airflow distribution according to actual needs. Air nozzles are suspended above the conveyor rollers and arranged sequentially along the hot melt wire conveying direction, responsible for precisely delivering airflow to the hot melt wire location, achieving precise air delivery.

[0010] As a preferred embodiment, each of the branch air supply ducts is equipped with a control valve for adjusting the internal air volume, and the control valve is detachably connected to the branch air supply duct.

[0011] By adopting the above technical solution and adjusting the control valves, the air volume in different branch air supply ducts can be flexibly controlled, thereby ensuring that the air force at the outlet of each branch air supply duct meets the specific process requirements. This ensures the effective drying of the wire under different production and environmental conditions, improves drying efficiency, and reduces unnecessary energy consumption, thus achieving energy-saving effects.

[0012] As a preferred embodiment, the air outlet is oriented at an angle of 15°-30° to the vertical direction, and the air outlet direction is tilted downwards towards the direction of hot melt wire delivery.

[0013] By adopting the above technical solution, the air outlet is set at an angle of 15° to 30° to the vertical direction, ensuring that the airflow is tilted at an appropriate angle downwards in the direction of hot melt wire delivery, thereby achieving a highly efficient drying effect. This tilted airflow avoids direct contact with the hot melt wire surface, reducing the risk of scratches or contamination from physical contact, making it particularly suitable for products with extremely high surface quality requirements.

[0014] As a preferred embodiment, the surface of the conveying roller is covered with a flexible wear-resistant layer, and the lower end face of the inner cavity of the air dryer box is provided with a drainage groove corresponding to the conveying roller. The drainage groove is set to be concave and is provided for collecting blown-down water droplets.

[0015] By adopting the above technical solution, the flexible wear-resistant layer covering the surface of the conveyor roller has good wear resistance and a certain degree of elasticity, which can effectively reduce friction between the roller and the material, and prevent the conveyor surface from being damaged by friction, thereby improving conveying efficiency and material protection performance. The drainage groove corresponding to the conveyor roller on the lower end face of the inner cavity of the air dryer is designed to be concave, which can effectively collect water droplets blown off during the air drying process, prevent water droplets from spreading to other unwanted locations, and keep the working environment clean.

[0016] As a preferred embodiment, an air filter is provided at the air inlet of the centrifugal fan, and the air filter is detachably connected to the air inlet.

[0017] By adopting the above technical solution, the air filter is installed at the air inlet of the centrifugal fan, which filters dust, particulate matter, and other impurities from the air entering the fan, effectively protecting the internal components of the fan from contamination and wear, and extending the service life of the fan. The air inlet and air filter are connected by a detachable design, which makes it convenient for users to replace or clean the filter regularly, ensuring smooth air intake and efficiency of the fan.

[0018] In summary, this application includes the following beneficial technical effects: 1. Uniform and efficient air drying: Multiple parallel air outlets are arranged sequentially along the conveying direction to form a continuous and wide-coverage air drying area, avoiding the problem of uneven air force from a single air source, and ensuring that the surface moisture of the hot melt wire can be thoroughly and evenly blown off along the entire circumference and length. 2. Independently adjustable airflow: Each branch air supply duct can be equipped with a control valve for adjusting the airflow. The airflow of each air outlet can be adjusted individually according to the actual production speed, wire diameter and surface moisture content, achieving precise air drying control, strong adaptability and energy saving.

[0019] 3. Non-contact operation: Drying is carried out entirely by airflow, avoiding physical contact with the hot melt wire surface and completely eliminating surface scratches or secondary pollution that may be caused by wiping. It is especially suitable for high-end products with high surface quality requirements.

[0020] 4. Reasonable structure and strong applicability: The adjustable frame design allows for adjustable air outlet height, optimizing the drying distance according to different wire diameters. The inclined air supply uses airflow to "scrape" water droplets off the surface and blow them downstream, while the drainage channel design further maintains a dry and clean working environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a drying device for plastic hot melt wire according to this application; Figure 2 This application relates to a drying device for plastic hot melt wire. Figure 1 A structural schematic diagram of the enlarged view at point A; Figure 3 This application relates to a drying device for plastic hot melt wire. Figure 1 A top view structural diagram; Figure 4 This is a bottom view of the structure of a drying device for plastic hot melt wire according to this application.

[0022] Explanation of reference numerals in the attached drawings: 100, Adjustable frame; 101, Support rod; 102, Telescopic support rod; 103, Locking bolt; 2, Dryer housing; 21, Drainage channel; 31, Conveyor roller; 321, Inlet guide wheel; 322, Outlet guide wheel; 41, Centrifugal fan; 411, Mounting bracket; 42, Main air supply duct; 43, Branch air supply duct; 431, Control valve; 44, Air outlet. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] Please refer to the details. Figure 1 , Figure 2 , Figure 3 and Figure 4 This application discloses a drying device for plastic hot melt wire. It includes an adjustable frame 100 and a drying chamber 2 disposed above the adjustable frame 100. Please refer to the details. Figure 1 and Figure 4The adjustable frame 100 includes a support rod 101, a telescopic support rod 102 that is slidably connected to the support rod 101, and a locking bolt 103 disposed between the support rod 101 and the telescopic support rod 102. The locking bolt 103 passes through the support rod 101 and the telescopic support rod 102 and is connected. The air drying box 2 is fixedly connected to the end of the telescopic support rod 102 away from the support rod 101. Please refer to the details. Figure 1 , Figure 2 and Figure 3 It also includes an inlet guide wheel 321 disposed at one end of the drying chamber 2, an outlet guide wheel 322 disposed at the other end of the drying chamber 2, a conveying roller 31 evenly disposed between the inlet guide wheel 321 and the outlet guide wheel 322, and an air supply system disposed on the support rod 101; the conveying roller 31 is rotatably disposed on the drying chamber 2 and is used to support and convey plastic hot melt wire.

[0025] Please refer to the details. Figure 1 , Figure 2 and Figure 3 The device mainly includes an adjustable frame 100 and a drying chamber 2 mounted on it. The adjustable frame 100 is constructed by a support rod 101 and a slidably connected telescopic support rod 102, ensuring that the height of the drying chamber 2 is adjustable. The telescopic support rod 102 is fixed by locking bolts 103, allowing the air supply position of the drying chamber 2 to accommodate plastic hot melt wires of different diameters. Inlet guide wheels 321 and outlet guide wheels 322 are used to guide the hot melt wires into and out of the drying area, while the conveyor roller 31 supports and conveys the hot melt wires. The air supply system provides a uniformly distributed airflow for drying, ensuring that the surface moisture in the circumference and length directions of the hot melt wires is thoroughly and evenly blown off through parallel air outlets 44. Each branch air supply duct 43 is equipped with a control valve 431, which can independently adjust the air volume to adapt to different production needs and achieve precise drying control. In terms of working principle, the drying distance can be optimized by adjusting the position of the telescopic support rod 102. Combined with the conveying of the conveying roller 31 and the effect of parallel drying airflow, the hot melt wire can be dried efficiently and evenly in a non-contact state, keeping its surface from being scratched or contaminated, while keeping the working environment dry and clean.

[0026] Please refer to the details. Figure 1 The air supply system includes a centrifugal fan 41, a main air supply duct 42, several branch air supply ducts 43, and air outlets 44.

[0027] A mounting bracket 411 is fixedly installed on the lower end face of the centrifugal fan 41. The mounting bracket 411 is fixedly connected to the adjacent support rod 101. The air outlet of the centrifugal fan 41 is connected to the main air supply duct 42. The main air supply duct 42 is arranged in a direction parallel to the axial direction of the conveyor roller 31; Several branch air supply ducts 43 are connected in parallel to the main air supply duct 42; Each branch air supply duct 43 is connected to an air outlet 44 at its outlet end; Air nozzles 44 are suspended above the conveyor roller 31, and all air nozzles 44 are arranged sequentially along the conveying direction of the hot melt wire. The centrifugal fan 41 is firmly supported by the mounting bracket 411 and is mainly responsible for providing strong airflow power. The main air supply duct 42 is set along the axial direction of the conveyor roller 31 to ensure that the airflow is evenly delivered along the wire conveying direction. The branch air supply ducts 43 are connected in parallel to the main air supply duct 42 and can adjust the air volume distribution according to actual needs. The air nozzles 44 are suspended above the conveyor roller 31 and arranged sequentially along the conveying direction of the hot melt wire, responsible for accurately blowing the airflow to the position of the hot melt wire to achieve precise air delivery. The overall working principle is as follows: the centrifugal fan 41 generates high-pressure airflow, which is evenly delivered to each branch air supply duct 43 through the main air supply duct 42. The branch air supply ducts 43 evenly distribute the airflow to each air nozzle 44, so that the hot melt wire can obtain a stable and concentrated cooling airflow during the conveying process, improving the stability and safety of the hot melt wire during the conveying process, and effectively preventing the hot melt wire from being damaged or deformed due to overheating.

[0028] Please refer to the details. Figure 1 and Figure 4 To further ensure the drying effect of the air outlet 44 on the hot melt wire, the air outlet 44 is set at an angle of 15°-30° to the vertical direction, and the air outlet direction of the air outlet 44 is tilted downwards towards the hot melt wire conveying direction. This angled airflow ensures that the airflow is tilted downwards towards the hot melt wire conveying direction, thereby achieving a highly efficient drying effect. This tilted airflow avoids direct contact with the hot melt wire surface, reducing the risk of scratches or contamination from physical contact, making it particularly suitable for products with extremely high surface quality requirements.

[0029] Please refer to the details. Figure 1 Each branch air supply duct 43 is equipped with a control valve 431 for adjusting its internal air volume. The control valve 431 is detachably connected to the branch air supply duct 43. By adjusting the control valve 431, the air volume in different branch air supply ducts 43 can be flexibly controlled, thereby ensuring that the air force at the outlet of each branch air supply duct 43 meets the specific process requirements. This ensures the effective drying of the wire under different production and environmental conditions, improves drying efficiency, and reduces unnecessary energy consumption, achieving energy-saving effects.

[0030] Please refer to the details. Figure 1 and Figure 3The surface of the conveyor roller 31 is covered with a flexible wear-resistant layer. A corresponding drainage groove 21 is provided on the lower end face of the inner cavity of the drying chamber 2, designed to collect water droplets blown off. The flexible wear-resistant layer covering the surface of the conveyor roller 31 has good wear resistance and a certain degree of elasticity, effectively reducing friction with the material and preventing damage to the material from friction on the conveying surface, thereby improving conveying efficiency and material protection performance. The concave design of the drainage groove 21 on the lower end face of the inner cavity of the drying chamber 2 effectively collects water droplets blown off during the drying process, preventing them from spreading to other unwanted locations and maintaining a clean working environment. The overall working principle is as follows: the material is conveyed through the conveyor roller 31 covered with a flexible wear-resistant layer and simultaneously dried by the drying device placed inside the drying chamber 2. Water droplets generated during the drying process are collected by the drainage groove 21 below the conveyor roller 31, ensuring smooth conveying and cleanliness of the equipment.

[0031] Please refer to the details. Figure 1 An air filter is installed at the air inlet of the centrifugal fan 41. The air filter is detachably connected to the air inlet and serves to filter dust, particulate matter, and other impurities from the air entering the fan. This effectively protects the internal components of the fan from contamination and wear, extending the fan's service life. The detachable connection between the air inlet and the air filter allows users to regularly replace or clean the filter, ensuring smooth airflow and efficiency. Its working principle is as follows: when air enters the fan through the air filter, the filter effectively intercepts dust and impurities. The filtered clean air is then drawn into the fan and compressed or accelerated, thus achieving the purpose of air delivery or pressurization.

[0032] The implementation principle of the air-drying device for plastic hot melt wire in this embodiment is as follows: During use, the adjustable frame 100 is constructed via a support rod 101 and a slidably connected telescopic support rod 102, ensuring that the height of the air-drying chamber 2 is adjustable. The telescopic support rod 102 is fixed by locking bolts 103, allowing the air supply position of the air-drying chamber 2 to accommodate plastic hot melt wires of different diameters. The inlet guide wheel 321 and outlet guide wheel 322 guide the hot melt wire into and out of the air-drying area. The conveying roller 31 supports and conveys the hot melt wire. The centrifugal fan 41 generates high-pressure airflow, which is evenly delivered to each branch air supply pipe 43 through the main air supply pipe 42. The branch air supply pipes 43 evenly distribute the airflow to each air outlet 44, thereby enabling the hot melt wire to obtain a stable and concentrated cooling airflow during the conveying process, improving the stability and safety of the hot melt wire during conveying, and effectively preventing the hot melt wire from being damaged or deformed due to overheating.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drying device for plastic hot melt wire, comprising an adjustable frame (100) and a drying chamber (2) disposed above the adjustable frame (100); The adjustable frame (100) includes a support rod (101), a telescopic rod (102) slidably connected to the support rod (101), and a locking bolt (103) disposed between the support rod (101) and the telescopic rod (102). The locking bolt (103) passes through the support rod (101) and connects the telescopic rod (102). The air drying box (2) is fixedly connected to the end of the telescopic rod (102) away from the support rod (101). The characteristic feature is that: It also includes an inlet guide wheel (321) set at one end of the air dryer box (2), an outlet guide wheel (322) set at the other end of the air dryer box (2), a conveying roller (31) evenly arranged between the inlet guide wheel (321) and the outlet guide wheel (322), and an air supply system set on the support rod (101); the conveying roller (31) is rotatably set on the air dryer box (2) for supporting and conveying plastic hot melt wire.

2. The drying device for plastic hot melt wire according to claim 1, characterized in that: The air supply system includes a centrifugal fan (41), a main air supply duct (42), several branch air supply ducts (43) and air outlets (44). The centrifugal fan (41) has a mounting bracket (411) fixedly installed on its lower end face. The mounting bracket (411) is fixedly connected to the adjacent support rod (101). The air outlet of the centrifugal fan (41) is connected to the main air supply duct (42). The main air supply duct (42) is arranged in a direction parallel to the axial direction of the conveying roller (31); The branch air supply pipes (43) are connected in parallel to the main air supply pipe (42); Each of the branch air supply ducts (43) is connected to an air outlet (44) at its outlet end.

3. The drying device for plastic hot melt wire according to claim 2, characterized in that: The air inlet (44) is suspended above the conveying roller (31), and all the air inlets (44) are arranged sequentially along the conveying direction of the hot melt wire.

4. The drying device for plastic hot melt wire according to claim 3, characterized in that: Each of the branch air supply ducts (43) is equipped with a control valve (431) for adjusting the internal air volume, and the control valve (431) is detachably connected to the branch air supply duct (43).

5. The drying device for plastic hot melt wire according to claim 4, characterized in that: The air outlet (44) is set at an angle of 15°-30° to the vertical direction, and the air outlet (44) is tilted downwards towards the direction of hot melt wire conveying.

6. The drying device for plastic hot melt wire according to claim 5, characterized in that: The surface of the conveying roller (31) is covered with a flexible wear-resistant layer, and the lower end face of the inner cavity of the air dryer box (2) is provided with a diversion groove (21) corresponding to the conveying roller (31).

7. The drying device for plastic hot melt wire according to claim 6, characterized in that: The drainage channel (21) is set to be concave, and the drainage channel (21) is used to collect the blown water droplets.

8. The drying device for plastic hot melt wire according to claim 7, characterized in that: An air filter is provided at the air inlet of the centrifugal fan (41), and the air filter is detachably connected to the air inlet.

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