Double-layer shaping and hot drying device for plastic flat filament processing

Abstract

The invention relates to the technical field of flat filament processing, in particular to a double-layer shaping and hot drying device for plastic flat filament processing, which comprises a main body chamber, when the temperature is too high, the temperature in a gas storage pipe rises, gas in the gas storage pipe expands, then a piston moves, and the piston drives a connecting rod to move when moving, so that the plastic flat filament processing is completed. The connecting rod moves to push the heat preservation plate to rotate on the sealing cover, meanwhile, the sealing cover rotates along with the first hot drying pipe body, the heat preservation plate rotates along with the sealing cover while rotating, and after the heat preservation plate finishes rotating, a certain included angle is formed between the heat preservation plate and the sealing cover; the temperature monitoring assembly is arranged, so that the impact area of the heat preservation plate and air is increased, more air enters the first hot drying pipe body to cool the first hot drying pipe body, the temperature monitoring assembly is automatically opened when the temperature is too high, and air is introduced for cooling through rotation of the heat preservation plate. The problem that the plastic flat filaments are prone to deformation or strength reduction due to overheating in the hot drying process is solved, and uniform heating is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of flat wire processing, in particular to a double-layer shaping and heating device for processing plastic flat wire. Background Art

[0002] At present, flat yarn is a chemical fiber monofilament with a flat cross-section. It is the abbreviation of the plastic weaving industry, and it is also called cutting fiber. It is the basic material for the production of plastic woven fabrics. Flat yarn is made of a specific type of polypropylene and polyethylene resin through melt extrusion into a film. Then, it is cut into strips longitudinally. The strips are heated and stretched and oriented at the same time to set the shape. Finally, they are wound into flat yarn spindles. Flat yarn is a chemical fiber monofilament with a flat cross-section. It is the abbreviation of the plastic weaving industry, and it is also called cutting fiber. It is the basic material for the production of plastic woven fabrics. Flat yarn is made of a specific type of polypropylene and polyethylene resin through melt extrusion into a film. Then, it is cut into strips longitudinally. The strips are heated and stretched and oriented at the same time to set the shape. Finally, they are wound into flat yarn spindles. The existing publication number is CN218059324U, which is a flat yarn stretching hot oven. It includes a frame, an upper box, a lower box, and a heating mechanism. The lower box is set on the frame, and the upper box is set on the lower box. Both ends of the upper box and the lower box are provided with holes for the flat yarn to pass through. The heating mechanism includes electric heating lamps. A plurality of such electric heating lamps are set in the upper box and the lower box, and the plurality of such electric heating lamps are arranged along the length direction of the upper box. This application reduces the temperature difference in the chamber by setting a plurality of electric heating tubes on the upper box and the lower box, reduces the local heating of the flat yarn, makes the heating of the flat yarn uniform, facilitates the subsequent stretching, reduces the probability of the flat yarn breaking, and thus maintains the production quality of the flat yarn. The existing plastic flat yarn hot drying device has the following main disadvantages: In the processing of plastic flat wire, the temperature fluctuates greatly, the product qualification rate may be low, and frequent shutdowns and adjustments are required. Summary of the Invention

[0003] The object of the present invention is to provide a double-layer shaping and heating device for processing plastic flat yarns to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions: Provided is a double-layer shaping and hot drying device for processing plastic flat yarn, comprising a main body chamber, the main body chamber being divided into an upper and lower layer, the upper and lower layers of the main body chamber being connected to a first hot drying roller mechanism and a second hot drying roller mechanism, the first hot drying roller mechanism and the second hot drying roller mechanism being arranged longitudinally, and a drive assembly being connected to the main body chamber; The first hot drying roller mechanism includes: The first electric heating tube assembly is fixedly connected in the main body cavity, the first electric heating tube assembly is rotatably connected to the first heat drying tube assembly, and both ends of the first heat drying tube assembly are fixedly connected to the temperature monitoring assembly; The second hot drying roller mechanism includes: The second electric heating tube assembly is fixedly connected in the main body cavity, and the second electric heating tube assembly is rotatably connected to the second heat drying tube assembly.

[0005] Furthermore, the electric heating tube assembly 1 includes: A spiral electric heating tube 1 is fixedly connected to a connecting tube 1, and the connecting tube 1 is fixedly connected to the main body cavity.

[0006] Furthermore, the first heat drying tube assembly includes: The first heat drying tube body is rotatably connected to the first connecting tube, and the first heat drying tube body is arranged in the main body cavity. A plurality of heat transfer rings are fixedly connected to the inside of the first heat drying tube body, and a plurality of fins are fixedly connected to the inner side of the heat transfer ring. A plurality of polygonal heat transfer grooves are opened on the outer side of the first heat drying tube body.

[0007] Furthermore, the temperature monitoring component includes: An air storage pipe is fixedly connected to the hot drying tube body. A piston is slidably connected to the air storage pipe. The piston is connected to the bottom of the air storage pipe by a spring. The piston is fixedly connected to one end of the connecting rod. A sealing cover is fixedly connected to both ends of the hot drying tube body. An insulation plate is rotatably connected to the sealing cover. A slide groove is fixedly connected to the insulation plate. The other end of the connecting rod is slidably connected to the slide groove.

[0008] Furthermore, the second electric heating tube assembly includes: A second spiral electric heating tube, wherein the second spiral electric heating tube is fixedly connected to a second connecting tube, and the second connecting tube is fixedly connected to the main body cavity; and The second heat drying tube assembly includes: The second heat drying tube body is rotatably connected to the second connecting tube. The second heat drying tube body is arranged in the main body cavity. Several second heat transfer rings are fixedly connected to the inside of the second heat drying tube body. Several second fins are fixedly connected to the inner side of the second heat transfer ring. Several threads are opened on the outer surface of the second heat drying tube body.

[0009] Furthermore, the driving assembly includes: The motor is fixedly connected to the top of the main body chamber, and the output end of the motor is fixedly connected to a synchronous wheel. One end of the hot drying tube body 1 located on the upper layer of the main body chamber is fixedly connected to the synchronous wheel. The two synchronous wheels are driven by a synchronous belt. The other end of the hot drying tube body 1 is fixedly connected to a gear. The other end of the hot drying tube body 2 located on the upper layer of the main body chamber is fixedly connected to a gear, and the two gears are meshed.

[0010] Compared with the existing technology, one or more of the above technical solutions have the following beneficial effects: 1. When the temperature is too high, the temperature inside the gas storage tube rises, causing the gas inside the tube to expand, which in turn causes the piston to move, stretching the spring. The piston moves, driving the connecting rod, which in turn drives the insulation plate to rotate on the sealing cover. At the same time, the sealing cover rotates along with the main body of the hot drying tube. The insulation plate rotates along with the sealing cover while rotating. After the insulation plate rotates, a certain angle is formed between the insulation plate and the sealing cover. When the sealing cover rotates, the impact area between the insulation plate and the air increases, allowing more air to enter the main body of the hot drying tube, cooling it. The temperature monitoring component automatically opens when the temperature is too high, and the rotation of the insulation plate introduces air for cooling. This solves the problem of plastic flat wire easily deforming or losing strength due to overheating during the hot drying process, ensuring uniform heating. 2. When the flat wire passes between the first hot drying roller mechanism and the second hot drying roller mechanism, the connecting tube 1 is heated by the spiral electric heating tube. After the connecting tube 1 is heated, the heat is transferred to the hot drying tube body 1 through the air. By arranging the heat transfer ring and the fin, the heating area of ​​the hot drying tube body 1 is larger. The heat transfer ring and the fin are arranged in the hot drying tube assembly, which increases the heat exchange area. Combined with the spiral electric heating tube, the air is heated indirectly, which reduces heat loss and heats the flat wire more quickly and evenly. At the same time, the indirect heating method of the spiral electric heating tube is more energy-efficient than direct electric heating. A plurality of threads are provided on the outer surface of the hot drying tube body 2. The spiral protrusions of the threads form a shear force during rotation, which peels off the plastic debris falling off the surface of the flat wire, which is beneficial to draw the flat wire closer to the middle and facilitate output after hot drying. A polygonal heat transfer groove is provided. The regular distribution of the polygonal groove forms multiple contact points to avoid uneven heating of the flat wire caused by local overheating. The gaps in the grooves allow air circulation to assist in heat dissipation and balance the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0012] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a front view of the overall three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the first hot drying roller mechanism of the present invention; Figure 4 This is a schematic diagram of an exploded three-dimensional structure of an electric heating tube assembly of the present invention; Figure 5 This is a schematic diagram of the overall three-dimensional structure of the first hot drying tube assembly of the present invention; Figure 6 This is a schematic diagram of the overall three-dimensional structure of the temperature monitoring assembly of the present invention; Figure 7 This is a schematic diagram of the overall three-dimensional structure of the fin of the present invention; Figure 8 This is a cross-sectional view of the overall three-dimensional structure of the second hot drying tube assembly of the present invention; Figure 9 This is a schematic diagram of the overall three-dimensional structure of the hot drying tube body of the present invention; Figure 10 This is a sectional view of the overall three-dimensional structure of the first hot drying tube assembly of the present invention; Figure 11 This is a schematic diagram of the overall three-dimensional structure of the temperature monitoring assembly of the present invention; In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Main body chamber; 2. First hot drying roller mechanism; 21. Electric heating tube assembly (1); 211. Spiral electric heating tube (1); 212. Connecting tube (1); 22. First hot drying tube assembly; 221. Hot drying tube body (1); 222. Heat transfer ring; 223. Fins; 224. Polygonal heat transfer groove; 23. Temperature monitoring assembly; 231. Gas storage tube; 232. Piston; 233. Spring; 234. Connecting rod; 235. Sealing cover; 236. Insulation plate; 237. Slideway; 3. Second hot drying roller mechanism; 31. Second electric heating tube assembly; 311. Second spiral electric heating tube; 312. Second connecting tube; 32. Second hot drying tube assembly; 321. Second hot drying tube body; 322. Second heat transfer ring; 323. Second fin; 324. Thread; 4. Drive assembly; 41. Motor; 42. Synchronous wheel. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0015] Reference Figure 1-3 As shown in FIG8 , a double-layer shaping and drying device for processing plastic flat yarns comprises a main body chamber 1, the main body chamber 1 being divided into an upper and lower layer, the upper and lower layers of the main body chamber 1 being connected to a first hot drying roller mechanism 2 and a second hot drying roller mechanism 3, the first hot drying roller mechanism 2 and the second hot drying roller mechanism 3 being arranged longitudinally, and a drive assembly 4 being connected to the main body chamber 1; The first hot drying roller mechanism 2 includes: The electric heating pipe assembly 21 is fixedly connected to the main body chamber 1. The electric heating pipe assembly 21 is rotatably connected to the first heat drying pipe assembly 22. The first heat drying pipe assembly 22 has temperature monitoring assemblies 23 fixedly connected at both ends. The second hot drying roller mechanism 3 includes: The second electric heating pipe assembly 31 is fixedly connected in the main body chamber 1 , and the second heating pipe assembly 32 is rotatably connected to the second electric heating pipe assembly 31 .

[0016] The flat yarn to be dried passes between the first hot drying roller mechanism 2 and the second hot drying roller mechanism 3, and the flat yarn continues to move forward. When the flat yarn moves, the electric heating component 1 is started, and the first hot drying tube component 22 is driven to rotate by the driving component 4. When the temperature is too high, the temperature monitoring component 23 is turned on. As the first hot drying tube component 22 rotates, more air will enter the first hot drying tube component 22 to cool the first hot drying tube component 22.

[0017] Reference Figure 4 As shown, the electric heating pipe assembly 21 includes: The spiral electric heating tube 211 is fixedly connected to the connecting tube 212, and the connecting tube 212 is fixedly connected to the main chamber 1.

[0018] When the flat yarn passes between the first hot drying roller mechanism 2 and the second hot drying roller mechanism 3 , the connecting tube 1 212 is heated by the spiral electric heating tube 1 211 .

[0019] Reference Figure 5 、 7 As shown in FIG10 , the first heat drying tube assembly 22 includes: The heat drying tube body 221 is rotatably connected to the connecting tube 212. The heat drying tube body 221 is arranged in the main body chamber 1. A plurality of heat transfer rings 222 are fixedly connected to the heat drying tube body 221. A plurality of fins 223 are fixedly connected to the inner side of the heat transfer ring 222. A plurality of polygonal heat transfer grooves 224 are opened on the outer side of the heat drying tube body 221.

[0020] After the connecting pipe 212 is heated, the heat is transferred to the heat drying pipe body 221 through the air. By providing the heat transfer ring 222 and the fins 223, the heating area of ​​the heat drying pipe body 221 is increased.

[0021] Reference Figure 6 and 11 As shown, the temperature monitoring component 23 includes: The gas storage pipe 231 is fixedly connected to the hot drying tube body 221. A piston 232 is slidably connected to the gas storage pipe 231. The piston 232 is connected to the bottom of the gas storage pipe 231 by a spring 233. The piston 232 is fixedly connected to one end of a connecting rod 234. Sealing covers 235 are fixedly connected to both ends of the hot drying tube body 221. An insulation plate 236 is rotatably connected to the sealing cover 235. A slide groove 237 is fixedly connected to the insulation plate 236. The other end of the connecting rod 234 is slidably connected to the slide groove 237.

[0022] When the temperature is too high, the temperature in the gas storage pipe 231 rises, causing the gas in the gas storage pipe 231 to expand, thereby causing the piston 232 to move, the spring 233 to be stretched, and the piston 232 to drive the connecting rod 234 to move when moving. The movement of the connecting rod 234 pushes the insulation plate 236 to rotate on the sealing cover 235. At the same time, the sealing cover 235 rotates with the hot baking tube body 221. The insulation plate 236 rotates with the sealing cover 235 while rotating. After the insulation plate 236 completes its rotation, a certain angle is formed between the insulation plate 236 and the sealing cover 235. When the sealing cover 235 rotates, the collision area between the insulation plate 236 and the air increases, allowing more air to enter the hot baking tube body 221 to cool it.

[0023] Reference Figure 9 As shown, the second electric heating pipe assembly 31 includes: The second spiral electric heating tube 311 is fixedly connected to the second connecting tube 312, and the second connecting tube 312 is fixedly connected to the main body chamber 1; and The second heat drying tube assembly 32 includes: The second heat drying tube body 321 is rotatably connected to the second connecting tube 312. The second heat drying tube body 321 is arranged in the main body chamber 1. A plurality of second heat transfer rings 322 are fixedly connected to the inside of the second heat drying tube body 321. A plurality of second fins 323 are fixedly connected to the inner side of the second heat transfer ring 322. The outer surface of the second heat drying tube body 321 is provided with a plurality of threads 324.

[0024] As the flat yarn passes between the first and second hot drying roller mechanisms 2 and 3, the second connecting tube 312 is heated by the second spiral electric heating tube 311. After the second connecting tube 312 is heated, the heat is transferred to the second hot drying tube body 321 through the air. By providing the second heat transfer ring 322 and the second fin 323, the heating area of ​​the second hot drying tube body 321 is increased.

[0025] The drive assembly 4 includes: The motor 41 is fixedly connected to the top of the main chamber 1, and the output end of the motor 41 is fixedly connected to the synchronous wheel 42. One end of the hot drying tube body 221 located on the upper layer of the main chamber 1 is fixedly connected to the synchronous wheel 42. The two synchronous wheels 42 are driven by a synchronous belt. The other end of the hot drying tube body 221 is fixedly connected to a gear. The other end of the hot drying tube body 2 321 located on the upper layer of the main chamber 1 is fixedly connected to a gear, and the two gears are meshed.

[0026] The starting motor 41 drives the synchronous wheel 42 fixedly connected thereto to rotate, and the transmission action of the synchronous belt drives the first heat drying tube body 221 to rotate. The meshing action of the two gears drives the second heat drying tube body 321 to rotate.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-layer shaping and heating device for processing plastic flat yarn, characterized by: The invention comprises a main body chamber (1), wherein the main body chamber (1) is divided into two layers, the upper and lower layers of the main body chamber (1), both of which are connected to a first hot drying roller mechanism (2) and a second hot drying roller mechanism (3), wherein the first hot drying roller mechanism (2) and the second hot drying roller mechanism (3) are arranged longitudinally, and a driving component (4) is connected inside the main body chamber (1); wherein The first hot drying roller mechanism (2) comprises: An electric heating tube assembly (21), the electric heating tube assembly (21) being fixedly connected in the main body chamber (1), the electric heating tube assembly (21) being rotatably connected to a first heat drying tube assembly (22), and both ends of the first heat drying tube assembly (22) being fixedly connected to a temperature monitoring assembly (23); The second hot drying roller mechanism (3) comprises: The second electric heating tube assembly (31) is fixedly connected in the main body chamber (1), and the second electric heating tube assembly (31) is rotatably connected to the second heat drying tube assembly (32).

2. A double-layer shaping and heating device for processing plastic flat yarn according to claim 1, characterized in that: The electric heating tube assembly 1 (21) includes: A spiral electric heating tube (211) is fixedly connected to a connecting tube (212), and the connecting tube (212) is fixedly connected to the main body chamber (1).

3. A double-layer shaping and heating device for processing plastic flat yarn according to claim 2, characterized in that: The first heat drying tube assembly (22) includes: A heat drying tube body (221) is rotatably connected to a connecting tube (212). The heat drying tube body (221) is arranged in a main body chamber (1). A plurality of heat transfer rings (222) are fixedly connected to the inside of the heat drying tube body (221). A plurality of fins (223) are fixedly connected to the inside of the heat transfer ring (222). A plurality of polygonal heat transfer grooves (224) are provided on the outside of the heat drying tube body (221).

4. A double-layer shaping and heating device for processing plastic flat yarn according to claim 3, characterized in that: The temperature monitoring component (23) includes: An air storage pipe (231) is fixedly connected to a heat drying pipe body (221). A piston (232) is slidably connected to the air storage pipe (231). The piston (232) is connected to the bottom of the air storage pipe (231) via a spring (233). The piston (232) is fixedly connected to one end of a connecting rod (234). Sealing covers (235) are fixedly connected to both ends of the heat drying pipe body (221). A heat preservation plate (236) is rotatably connected to the sealing cover (235). A slide groove (237) is fixedly connected to the heat preservation plate (236). The other end of the connecting rod (234) is slidably connected to the slide groove (237).

5. A double-layer shaping and heating device for processing plastic flat yarn according to claim 4, characterized in that: The second electric heating tube assembly (31) includes: A second spiral electric heating tube (311), wherein the second spiral electric heating tube (311) is fixedly connected to a second connecting tube (312), and the second connecting tube (312) is fixedly connected to the main body chamber (1); and The second heat drying tube assembly (32) includes: The second heat drying tube body (321) is rotatably connected to the second connecting tube (312). The second heat drying tube body (321) is arranged in the main body chamber (1). A plurality of second heat transfer rings (322) are fixedly connected to the inside of the second heat drying tube body (321). A plurality of second fins (323) are fixedly connected to the inner side of the second heat transfer ring (322). The outer surface of the second heat drying tube body (321) is provided with a plurality of threads (324).

6. A double-layer shaping and heating device for processing plastic flat yarn according to claim 5, characterized in that: The driving component (4) includes: A motor (41) is fixedly connected to the top of the main chamber (1), an output end of the motor (41) is fixedly connected to a synchronous wheel (42), one end of the first heat drying tube body (221) located on the upper layer of the main chamber (1) is fixedly connected to the synchronous wheel (42), the two synchronous wheels (42) are driven by a synchronous belt, the other end of the first heat drying tube body (221) is fixedly connected to a gear, the other end of the second heat drying tube body (321) located on the upper layer of the main chamber (1) is fixedly connected to a gear, and the two gears are meshed.

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