Heating device for polyester low stretch yarn

Abstract

The application relates to the polyester yarn preparation technical field and discloses a heating device for polyester low-elasticity yarn, which comprises a heating box and a circulating heating mechanism; the circulating heating mechanism comprises a water tank fixedly connected to the bottom surface of the heating box and two electric heating rods installed in the water tank, and two circulating submersible pumps fixedly connected to the inner bottom wall of the water tank. The heating device for polyester low-elasticity yarn can realize uniform, accurate, energy-saving and environment-friendly heating of the polyester yarn through the circulating heating mechanism. The electric heating rods heat the water in the water tank, the two circulating submersible pumps circulate and convey the hot water through the hollow metal guide rollers, the liquid conveying pipes, the transfer boxes and the spiral channels, the sealing bearings ensure smooth rotation of the guide rollers, the polyester yarn directly contacts the surface of the guide rollers for heating, the heating uniformity is effectively improved, and the risk of uneven heating is reduced. In addition, the hot water is recycled, energy waste is reduced, the temperature of the hot water is stable, extreme temperature fluctuation is avoided, and the equipment failure rate is reduced.

Description

Technical Field

[0001] This application relates to the field of polyester filament preparation technology, specifically a heating device for polyester low-elasticity filament. Background Technology

[0002] Polyester filament is an essential component of daily life and an ideal raw material for textile production. It has advantages such as high modulus, high strength, good shape retention, and good heat resistance. It is commonly used in clothing fabrics, outdoor products, and decorative products. In particular, polyester filament has better heat resistance than other fibers, making it an ideal raw material for producing special clothing fabrics, such as fire-fighting clothing fabrics.

[0003] An existing patent (publication number: CN219342451U) discloses a heating device for polyester low-elasticity yarn, including a heating box. The heating box contains symmetrically distributed support plates, which divide the space inside the heating box into a first heating zone, a heating zone, and a second heating zone from top to bottom. A hot air outlet is provided on the side of the support plate facing the heating zone. The heating zone is the passageway for the polyester yarn. This invention divides the entire heating box into two heating zones and one heating zone using two support plates with hot air outlets. The heating zone serves as the passageway and heating space for the polyester yarn. The heating element is built into the heating zone, heating the air within the heating zone before it enters the heating zone through the hot air outlet. This effectively improves the temperature uniformity of the heating zone and avoids the baking phenomenon caused by the heating element directly heating the polyester yarn, thus improving the heating quality of the polyester yarn. The entire heating device has a scientifically sound and reasonable structural design, good heating effect, and strong practicality.

[0004] The aforementioned comparative documents use electric heating mesh and electric heating tubes to heat polyester yarn. During the heating process, hot spots are often generated, which can easily cause some areas of the low-elasticity polyester yarn to overheat and affect product quality. In order to solve the above problems, a heating device for low-elasticity polyester yarn is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a heating device for polyester low-elasticity yarn, which adopts hot water circulation heating, providing a more uniform, precise, energy-saving and environmentally friendly heating method. Compared with traditional electric heating mesh and electric heating tube, it can significantly improve the heating quality and efficiency of polyester low-elasticity yarn.

[0006] To achieve the above objectives, this application provides the following technical solution: a heating device for polyester low-elasticity yarn, comprising a heating box and a circulating heating mechanism. The circulating heating mechanism includes a water tank fixedly connected to the bottom surface of the heating box and two electric heating rods installed inside the water tank, as well as two circulating submersible pumps fixedly connected to the bottom wall of the water tank. The output end of each circulating submersible pump is connected to an infusion pipe. The outer surfaces of the two infusion pipes are respectively fixedly connected to both sides of the inner wall of the heating box. Two transfer boxes are fixedly connected to both sides of the inner wall of the heating box. The interior of the heating box is provided with five staggered hollow metal guide rollers. Each hollow metal guide roller is fixedly connected to both ends with a sealed bearing. The five hollow metal guide rollers are respectively connected to the inner walls of four transfer boxes through corresponding sealed bearings. The top ends of the two infusion pipes are respectively connected to the corresponding hollow metal guide rollers through corresponding sealed bearings. The inner wall of each hollow metal guide roller is equipped with a spiral channel.

[0007] The above-described circulating heating mechanism enables uniform, precise, energy-efficient, and environmentally friendly heating of polyester filaments through hot water circulation. Electric heating rods heat the water inside the tank, and two circulating submersible pumps circulate the hot water through hollow metal guide rollers, infusion pipes, a transfer box, and a spiral channel. Sealed bearings ensure smooth rotation of the hollow metal guide rollers, allowing the polyester filaments to directly contact their surface for heating during transport. This results in more uniform heating, reducing the risk of uneven heating. Furthermore, continuous hot water recycling minimizes energy waste. Additionally, hot water heating is relatively gentle, with a stable temperature, reducing the likelihood of extreme temperature fluctuations and lowering the equipment's failure rate, thus extending its service life.

[0008] Furthermore, a controller is fixedly connected to one side of the water tank, and the two electric heating rods and the two circulating submersible pumps are all electrically connected to the controller.

[0009] The controller designed using the above scheme can easily control the operation of the internal components of the circulating heating mechanism, simplifying the operation.

[0010] Furthermore, a temperature sensor is installed on the inner bottom wall of the water tank, and the temperature sensor is electrically connected to the controller.

[0011] The temperature sensor installed using the above method can detect the water temperature inside the water tank and send the data back to the controller for display.

[0012] Furthermore, an injection port is installed on the outer surface of the water tank, and the output end of the injection port is connected to the interior of the water tank.

[0013] The above scheme allows for the addition of an appropriate amount of water to the water tank through the injection port, facilitating subsequent heating of the polyester filaments.

[0014] Furthermore, a drain port is installed on the bottom surface of the water tank, and the input end of the drain port is connected to the interior of the water tank.

[0015] The above solution allows the drain outlet to drain water from the tank, facilitating water replacement.

[0016] Furthermore, an inlet frame and an outlet frame are respectively installed on both sides of the outer surface of the heating box, and both the inlet frame and the outlet frame are connected to the interior of the heating box.

[0017] The above scheme allows the inlet and outlet frames to easily transport polyester yarn into the heating chamber for heating.

[0018] Furthermore, a mesh plate is embedded at the top of the heating box.

[0019] The above-mentioned design ensures airflow between the inside and outside of the heating chamber through the installation of the mesh plate.

[0020] Furthermore, support columns are fixedly connected to the four corners of the bottom surface of the water tank.

[0021] The above-described design allows the support columns to be placed more stably on the contact surface.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This heating device for polyester low-elasticity yarn achieves uniform, precise, energy-saving, and environmentally friendly heating of the polyester yarn through a circulating heating mechanism. An electric heating rod heats the water in the tank, and two circulating submersible pumps circulate the hot water through hollow metal guide rollers, infusion pipes, a transfer box, and a spiral channel. Sealed bearings ensure smooth rotation of the guide rollers, allowing the polyester yarn to directly contact the surface of the guide rollers for heating, effectively improving heating uniformity and reducing the risk of uneven heating. Furthermore, by recycling the hot water, energy waste is reduced, and the stable hot water temperature avoids extreme temperature fluctuations, thereby reducing equipment failure rates and extending service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a structural schematic diagram from another perspective of the overall application;

[0026] Figure 3 This is a schematic diagram of the overall internal structure of this application;

[0027] Figure 4 This is a schematic diagram of the circulating heating mechanism, hollow metal guide roller, infusion pipe and transfer box of this application;

[0028] Figure 5 This is a schematic diagram of the hollow metal guide roller, sealed bearing, and spiral channel of this application.

[0029] In the picture:

[0030] 1. Heating box; 2. Circulating heating mechanism; 201. Water tank; 202. Electric heating rod; 203. Temperature sensor; 204. Circulating submersible pump; 205. Hollow metal guide roller; 206. Sealed bearing; 207. Infusion tube; 208. Transfer box; 209. Spiral channel; 210. Controller; 211. Injection port; 212. Drain port; 3. Inlet frame; 4. Outlet frame; 5. Mesh plate; 6. Support column. Detailed Implementation

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

[0032] Please see Figure 1 , Figure 3 and Figure 4 This embodiment of a heating device for polyester low-elasticity yarn includes a heating box 1 and a circulating heating mechanism 2. The circulating heating mechanism 2 includes a water tank 201 fixedly connected to the bottom surface of the heating box 1, two electric heating rods 202 installed inside the water tank 201, and two circulating submersible pumps 204 fixedly connected to the bottom wall of the water tank 201. When the water tank 201 is started, it can directly heat the water inside the water tank 201. The output end of each circulating submersible pump 204 is connected to a delivery pipe 207. When the two circulating submersible pumps 204 are started, one circulating submersible pump 204 is responsible for delivering the hot water in the water tank 201 to a designated location through the delivery pipe 207, and the other circulating submersible pump 204 is responsible for discharging the hot water in the corresponding delivery pipe 207 into the water tank 201.

[0033] Please see Figure 3 , Figure 4 and Figure 5The outer surfaces of the two infusion tubes 207 are fixedly connected to both sides of the inner wall of the heating box 1. Two transfer boxes 208 are fixedly connected to both sides of the inner wall of the heating box 1. The heating box 1 is equipped with five staggered hollow metal guide rollers 205. Each hollow metal guide roller 205 has a sealed bearing 206 fixedly connected to both ends. The five hollow metal guide rollers 205 are connected to the inner walls of the four transfer boxes 208 through the corresponding sealed bearings 206. The top ends of the two infusion tubes 207 are connected to the corresponding hollow metal guide rollers 205 through the corresponding sealed bearings 206. The inner wall of each hollow metal guide roller 205 is equipped with a spiral channel 209. The sealed bearings 206 ensure that the hollow metal guide rollers 205 do not affect the circulation of the liquid inside when rotating smoothly.

[0034] It should be noted that when the two circulating submersible pumps 204 are started, the hot water inside the water tank 201 can be circulated and transported through the infusion pipe 207, the hollow metal guide rollers 205, and the transfer box 208. In this way, when the polyester filament is guided and transported through the multiple hollow metal guide rollers 205, it can directly contact the surface of the hollow metal guide rollers 205 and exchange heat with them, thereby achieving stable and uniform heating of the polyester filament. In addition, the device can recycle hot water, effectively reducing energy consumption and making it more environmentally friendly and practical.

[0035] Please see Figure 2 , Figure 3 and Figure 4 A controller 210 is fixedly connected to one side of the water tank 201. Two electric heating rods 202 and two circulating submersible pumps 204 are all electrically connected to the controller 210. The controller 210 allows for convenient control of the internal components of the circulating heating mechanism 2, simplifying operation. A temperature sensor 203 is installed on the inner bottom wall of the water tank 201 and is electrically connected to the controller 210. The temperature sensor 203 detects the water temperature inside the water tank 201 and feeds the data back to the controller 210. The water tank 201 has an injection port 211 installed on its outer surface. The output end of the injection port 211 is connected to the inside of the water tank 201. A suitable amount of water can be added to the water tank 201 through the injection port 211 to facilitate the subsequent heating of the polyester filament. The bottom surface of the water tank 201 has a drain port 212 installed on its bottom surface. The input end of the drain port 212 is connected to the inside of the water tank 201. The water inside the water tank 201 can be drained through the drain port 212 to facilitate the replacement of the water inside the water tank 201.

[0036] Please see Figure 1 , Figure 2 and Figure 3The heating box 1 has an inlet frame 3 and an outlet frame 4 installed on both sides of its outer surface. Both the inlet frame 3 and the outlet frame 4 are connected to the interior of the heating box 1. The inlet frame 3 and the outlet frame 4 can be used to easily transport polyester yarn into the interior of the heating box 1 for heating. The top of the heating box 1 is inlaid with a mesh plate 5. The mesh plate 5 can ensure the air circulation inside and outside the heating box 1. The four corners of the bottom surface of the water tank 201 are fixedly connected with support columns 6. The support columns 6 can make the device more stable on the contact surface.

[0037] In this embodiment, a heating device for polyester low-elasticity yarn uses a circulating heating mechanism 2 to achieve uniform, precise, energy-saving, and environmentally friendly heating of the polyester yarn through hot water circulation. An electric heating rod 202 heats the water inside the water tank 201. Two circulating submersible pumps 204 circulate the hot water in the tank 201 through a hollow metal guide roller 205, a delivery pipe 207, a transfer box 208, and a spiral channel 209. Simultaneously, a sealed bearing 206 ensures smooth rotation of the hollow metal guide roller 205, allowing the polyester yarn to directly contact the surface of the guide roller 205 during transport, resulting in more uniform heating, reducing the risk of uneven heating, and minimizing energy waste through continuous hot water recycling. Furthermore, the hot water heating method is relatively gentle, with a stable temperature, reducing the likelihood of extreme temperature fluctuations, lowering the equipment failure rate, and extending its service life.

[0038] The working principle of the above embodiment is as follows: An appropriate amount of water is added to the water tank 201 through the injection port 211, and the water in the water tank 201 is heated by activating two electric heating rods 202. Then, two circulating submersible pumps 204 are activated, which respectively deliver and pump water, allowing the hot water in the water tank 201 to be circulated and transported through two infusion pipes 207, four transfer boxes 208, and five hollow metal guide rollers 205. This continuous and cyclical heating of the hot water ensures the quality of heating the polyester filaments. Furthermore, each hollow metal guide roller 205 has a spiral channel 209 installed on its inner wall, which allows the hot water to be distributed more evenly across the hollow metal guide roller. The internal circulation of 205 allows for heating of the hollow metal guide roller 205. Polyester filaments can be conveyed inside the heating box 1 through multiple hollow metal guide rollers 205, enabling direct heat transfer between the polyester filaments and the heated hollow metal guide rollers 205. This results in stable and uniform heating of the polyester filaments, and the hot water temperature is relatively stable, reducing the likelihood of extreme temperature fluctuations, lowering the equipment failure rate, and extending its service life. Furthermore, operators can adjust the heating temperature of the electric heating rod 202 via the controller 210, making the heating operation more flexible. Finally, the water inside the water tank 201 can be periodically replaced through the injection port 211 and the drain port 212 for convenient use.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating device for polyester low-elasticity yarn, comprising a heating box (1) and a circulating heating mechanism (2), characterized in that: The circulating heating mechanism (2) includes a water tank (201) fixedly connected to the bottom of the heating box (1) and two electric heating rods (202) installed inside the water tank (201), as well as two circulating submersible pumps (204) fixedly connected to the bottom wall of the water tank (201). The output end of each circulating submersible pump (204) is connected to an infusion pipe (207). The outer surfaces of the two infusion pipes (207) are fixedly connected to both sides of the inner wall of the heating box (1). Two transfer boxes (208) are fixedly connected to both sides of the inner wall of the heating box (1). The interior of the device is provided with five staggered hollow metal guide rollers (205). Each hollow metal guide roller (205) has a sealed bearing (206) fixedly connected to both ends. The five hollow metal guide rollers (205) are respectively connected to the inner walls of the four transfer boxes (208) through the corresponding sealed bearings (206). The top ends of the two infusion tubes (207) are respectively connected to the corresponding hollow metal guide rollers (205) through the corresponding sealed bearings (206). The inner wall of each hollow metal guide roller (205) is equipped with a spiral channel (209).

2. The heating device for polyester low-elasticity yarn according to claim 1, characterized in that: A controller (210) is fixedly connected to one side of the water tank (201), and the two electric heating rods (202) and the two circulating submersible pumps (204) are all electrically connected to the controller (210).

3. The heating device for polyester low-elasticity yarn according to claim 2, characterized in that: A temperature sensor (203) is installed on the inner bottom wall of the water tank (201), and the temperature sensor (203) is electrically connected to the controller (210).

4. The heating device for polyester low-elasticity yarn according to claim 1, characterized in that: The water tank (201) has an injection port (211) installed on its outer surface, and the output end of the injection port (211) is connected to the interior of the water tank (201).

5. The heating device for polyester low-elasticity yarn according to claim 1, characterized in that: The bottom surface of the water tank (201) is equipped with a drain port (212), and the input end of the drain port (212) is connected to the interior of the water tank (201).

6. The heating device for polyester low-elasticity yarn according to claim 1, characterized in that: The heating box (1) has an inlet frame (3) and an outlet frame (4) installed on both sides of its outer surface. The inlet frame (3) and the outlet frame (4) are connected to the interior of the heating box (1).

7. The heating device for polyester low-elasticity yarn according to claim 1, characterized in that: The top of the heating box (1) is inlaid with a mesh plate (5).

8. The heating device for polyester low-elasticity yarn according to claim 1, characterized in that: Support columns (6) are fixedly connected to the four corners of the bottom surface of the water tank (201).

Images