A multi-layer heat setting device and heat setting process for the production of polyester mesh monofilaments

Abstract

The present invention discloses a multi-layer heat setting device and a heat setting process for the production of polyester mesh monofilaments, which relates to the technical field of polyester mesh monofilament production. The present invention includes a heat setting box, a guide tube mechanism and a side plate mechanism. The guide tube mechanism distributed horizontally and vertically is fixed inside the heat setting box, and the side plate mechanism is fixed on both the door and the back panel of the heat setting box. A hot air duct mechanism is arranged directly above a row of guide tube mechanisms. In the present invention, the hot air duct mechanism can change with the curved path of the polyester monofilament mesh, ensuring that the hot air can be evenly blown onto the polyester monofilaments, improving the heat setting effect and quality, avoiding local overheating, enhancing production safety, and when the device is used in a single layer, multiple groups of polyester monofilament meshes with the same temperature and type can be heat set synchronously. The side plates can also assist in production and can be divided into multiple layers of space to synchronously heat set polyester monofilament meshes with different temperatures and types, improving the space utilization rate and production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of polyester mesh monofilament production, and particularly relates to a multi-layer heat setting device and a heat setting process for polyester mesh monofilament production. Background Art

[0002] Polyester mesh is one of the main drying and filtering materials. There are multiple processes in polyester mesh production, among which heat setting is a very important final process in polyester mesh production. The difference in the heat setting quality of polyester mesh monofilaments directly determines whether the final mesh is qualified or not.

[0003] At present, there are many types of existing heat setting devices. For example, in the existing published literature, CN218404726U - a polyester gabion mesh electric heating setting device, it is disclosed that there is a heating box. Both sides of the heating box are welded with short plates. One side of the short plate is movably embedded and connected with a support roller through a bearing. Lifting components are installed on both sides of the heating box. A pressure roller is installed on the surface of the lifting component. A heater is fixedly installed on the back of the inner cavity of the heating box. A temperature sensor is fixedly installed on the right side of the top of the inner cavity of the heating box. A guide roller is movably embedded and connected with the bottom of the back of the inner cavity of the heating box through a bearing. Although it can be used for polyester mesh heat setting, it still has the following disadvantages in actual use:

[0004] 1. In a polyester gabion mesh electric heating setting device disclosed in the published literature CN218404726U, when drying polyester mesh monofilaments, the monofilaments closer to the heating rotating plate are prone to over-drying, and the monofilaments farther from the heating rotating plate are prone to under-drying, resulting in uneven drying of the monofilaments and an unsatisfactory heat setting effect.

[0005] 2. Different types of polyesters, such as PET, PTT, PBT, etc., have differences in molecular structure and properties, and their heat setting effects are also different, and the required temperatures are also different. However, the existing heat setting boxes are usually only used as a single-layer space. For example, a polyester gabion mesh electric heating setting device disclosed in the published literature CN218404726U has low space utilization rate and cannot meet the production requirements of simultaneously heat setting polyester single wire meshes of different types and different temperature requirements. If it is necessary to meet the production requirements of simultaneously heat setting polyester single wire meshes of different types and different temperature requirements, multiple heat setting boxes need to be set up and used simultaneously.

[0006] 3. Polyester itself is a flammable material. Therefore, during the heat setting process, the temperature needs to be precisely controlled. If the temperature control system fails, such as the temperature sensor malfunctions or the thermostat fails, etc., resulting in the heating equipment continuously heating, causing the temperature of the polyester mesh monofilament to far exceed the normal temperature required for heat setting and reaching the ignition point of polyester, it is extremely easy to trigger a fire. In addition, if the heating equipment heats unevenly, it will cause local overheating of the polyester mesh monofilament, and too high local temperature will also cause the polyester mesh monofilament to burn. Once the polyester mesh monofilament catches fire, it is very easy to ignite these flammable substances, expanding the fire and posing a great potential safety hazard.

[0007] Therefore, we provide a multi-layer heat setting device and heat setting process for the production of polyester mesh monofilaments to solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a multi-layer heat setting device and heat setting process for the production of polyester mesh monofilaments. Through the specific settings of the guide tube mechanism, side plate mechanism, hot air pipe mechanism and exhaust pipe mechanism, it solves the problems that the hot air of the existing heat setting device is uneven, affecting the heat setting effect and quality, and the existing device usually can only heat set polyester meshes of a single type and with the same temperature requirement, with low space utilization rate and low production efficiency. In addition, the existing heat setting devices generally lack effective fire extinguishing measures, or cannot accurately extinguish fires in specific small areas, and it is also difficult to quickly respond when a large area catches fire.

[0009] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0010] The present invention is a multi-layer heat setting device for the production of polyester mesh monofilaments, including a heat setting box, a guide tube mechanism and a side plate mechanism. The inside of the heat setting box is fixed with a guide tube mechanism distributed horizontally and vertically. The guide tube mechanism includes an outer tube and an inner tube. The inner tube is fixed inside the outer tube. The outer end of the inner tube is connected to an air delivery component. The outer end of the air delivery component is connected to an air tank. The air tank is filled with inert gas. The periphery of the air delivery component is connected to the corresponding exhaust pipe mechanism. The box door and the box back plate of the heat setting box are both fixed with a side plate mechanism. The side plate mechanism includes a first side plate and a second side plate. The horizontally placed first side plate and second side plate are integrated by plugging. The horizontally placed side plate mechanism divides the internal area of the heat setting box. Both the first side plate and the second side plate include a plate base and a plate body. The plate base and the plate body are movably connected through a movable shaft. A hot air pipe mechanism is arranged directly above a row of guide tube mechanisms. Each hot air pipe mechanism is respectively connected to an independent hot air box. The exhaust pipe mechanism is connected directly below the guide tube mechanism. A polyester monofilament mesh is wound around each row of guide tube mechanisms. The connecting lines of each row of guide tube mechanisms are parallel to their corresponding hot air pipe mechanisms and the polyester monofilament mesh.

[0011] The present invention is further configured such that adjustment grooves are evenly distributed on the inner side surface of the back plate of the heat setting box. The adjustment grooves are arranged in one-to-one correspondence with the guide tube mechanisms. Inner grooves are formed at the middle positions between adjacent two adjustment grooves. A flame sensor is fixed in each inner groove, and each flame sensor is electrically connected to the controller inside the external control cabinet; a group of plate grooves are longitudinally distributed on the heat setting box, and the side plate mechanisms are fitted and installed in the corresponding plate grooves; a gas filtering box is fixed at the bottom of the heat setting box. A group of air inlets are arranged on one side of the gas filtering box, and an air outlet is arranged on the other side of the gas filtering box. A group of longitudinally distributed material ports are formed on both side walls of the heat setting box. A group of longitudinally distributed temperature sensors are fixed on one inner wall of the heat setting box, and each temperature sensor is respectively located directly below each material port.

[0012] The present invention is further configured such that the adjustment groove includes a middle groove and side grooves. Side grooves are formed on both sides of the middle groove; the plate groove includes a first through groove, a second through groove and a slot. A group of longitudinally distributed first through grooves are formed on the box door of the heat setting box, a group of longitudinally distributed second through grooves are formed on the box back plate of the heat setting box, and a group of longitudinally distributed slots are formed on both inner side walls of the heat setting box.

[0013] The present invention is further configured such that two rows of through holes are formed on the circumferential side of the outer tube, and two rows of air nozzles are fixed on the circumferential side of the inner tube. Each air nozzle of the inner tube horizontally penetrates through each through hole of the outer tube one by one.

[0014] The present invention is further configured such that a tube seat is fixed at the inner end of the outer tube. Bolts are fixed on both sides of the tube seat. The tube seat is slidably installed in the corresponding middle groove. The screw rod of the bolt horizontally penetrates through the side groove, and the nut of the bolt is fastened on the screw rod and is located outside the side groove. The tube seat is limited in the middle groove by the bolt. A U-shaped rod is fixed on the circumferential side of the outer tube.

[0015] The present invention is further configured such that the gas transmission assembly includes a housing and an air pump. An air pump is fixed inside the housing. Air ports are connected to both sides and the circumferential side of the air pump. An electromagnetic valve is installed at each air port of the air pump. Each air pump and each electromagnetic valve are electrically connected to the controller inside the external control cabinet; the gas tank is provided with a double tank port, one of which is an outer tank port and the other is an inner tank port; one end of the housing is threadedly connected to the outer tube. One air port of the air pump is threadedly connected to the outer port of the inner tube, and the other air port of the air pump is threadedly connected to the inner tank port. The circumferential air port of the air pump is connected to the exhaust pipe mechanism through a connecting pipe.

[0016] The present invention is further configured such that the hot air duct mechanism is composed of a row of hoses, and air outlets are evenly distributed at the bottom of each hose. The row of hoses alternately passes through the inside and outside of the U-shaped rods of a row of guiding duct mechanisms, that is, the row of hoses passes through the outside of the previous U-shaped rod, then passes through the inside of the next U-shaped rod, and then passes through the outside of the next U-shaped rod, passing through each U-shaped rod in sequence. The two ends of the row of hoses respectively cross the two side plates of the heat setting box, and the two ends of the row of hoses are respectively connected by two cross pipes. The air port of one side cross pipe is connected to the air outlet pipe of the hot air box, and the air port of the other side cross pipe is connected to the exhaust pipe.

[0017] The present invention is further configured such that the exhaust pipe mechanism includes a U-shaped main pipe and a conveying pipe. The connecting pipes of the air pumps in a row of guiding duct mechanisms are all connected to the U-shaped main pipes of the corresponding exhaust pipe mechanisms, and the U-shaped main pipes of each exhaust pipe mechanism are respectively connected to the air inlets of the gas filtration box through their respective conveying pipes.

[0018] The present invention is further configured such that the first side plate and the second side plate are symmetrically arranged. The seat of the first side plate crosses the corresponding first through slot, and the seat of the second side plate crosses the corresponding second through slot. The dimensions of both sides of the first side plate and the dimensions of both sides of the second side plate are both matched with the dimensions of the slot; along edges are fixed at the upper and lower edges of the inner side of the seat. A groove is provided on the inner side of the seat of the first side plate, and a convex block is fixed on the inner side of the seat of the second side plate. The size of the convex block is matched with the size of the groove; slots are provided on both sides of the connection position between the seat and the plate body, pins are fixed in the slots on both sides of the seat, and inserts are fixed in the slots on both sides of the plate body. The horizontal seat and the plate body are limited by the matching pins and inserts.

[0019] The present invention also relates to a heat setting process for polyester mesh monofilaments, which is applied to a multi-layer heat setting device for producing polyester mesh monofilaments, specifically as follows:

[0020] S1: Raw material preparation stage:

[0021] Wind the polyester monofilament mesh around each row of guiding duct mechanisms to ensure that the polyester monofilament mesh is flat and has appropriate tension. Connect the hot air duct mechanism to an independent hot air box, and connect the exhaust pipe mechanism to the gas filtration box through the conveying pipe.

[0022] S2: Heat setting stage:

[0023] Turn on the hot air box to make a row of hoses in the hot air duct mechanism convey hot air into the heat setting box for heat setting the polyester monofilament mesh.

[0024] The present invention has the following beneficial effects:

[0025] 1. By adjusting the position of a single guiding tube mechanism, the present invention can control the tension of the polyester monofilament mesh. Moreover, the curved path of the hot air duct mechanism will change along with the curved path of the polyester monofilament mesh directly below, so that the hot air duct mechanism and the polyester monofilament mesh are always in a parallel state, ensuring that the hot air can be evenly blown onto the polyester monofilament mesh, improving the effect and quality of heat setting. In addition, due to uniform heating, local overheating during the heating of the polyester mesh monofilament can be avoided, improving the safety performance of production.

[0026] 2. By arranging side plate mechanisms on the door and the back plate of the heat setting box, when the heat setting box is used as a single layer, heat setting operations can be synchronously carried out on multiple polyester monofilament meshes of the same type that require the same temperature. At this time, the side plate mechanisms can be folded and stored or unfolded for use as operating plates to assist production. In addition, the heat setting box can also be divided into multiple layers of space for use, and heat setting operations can be synchronously carried out on multiple polyester monofilament meshes of different types that require different temperatures, improving the space utilization rate of the heat setting box and also improving the production efficiency.

[0027] 3. By the combined use of the guiding tube mechanism and the exhaust pipe mechanism, when the heat setting box is used in multiple layers, if the polyester monofilament mesh between two guiding tube mechanisms catches fire due to high temperature, the inert gases in the gas cylinders on both sides of the fire area will be discharged synchronously from each gas nozzle on both sides of the fire area, causing the inert gas to quickly and accurately fill the fire area, achieving the purpose of extinguishing the fire in a small area. If the temperatures detected by each temperature sensor exceed the set threshold, the inert gases in each gas cylinder will be immediately ejected, causing the inert gas to quickly fill the entire heat setting box, achieving the purpose of extinguishing the fire in a large area. It can accurately extinguish the fire in a specific small area quickly, and can also extinguish the fire in a large area quickly. When the heat setting box is used in multiple layers, it can also quickly extinguish the fire in the internal space of a specific box layer, and can discharge the waste gas in the heat setting box to the gas filtration box for treatment through the exhaust pipe mechanism after extinguishing the fire, improving the safety and environmental protection of production.

[0028] Certainly, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of a multi-layer heat setting device for the production of polyester mesh monofilaments.

[0031] Figure 2Schematic diagram of the structure after the door of the heat setting box is opened when it is used in a single layer.

[0032] Figure 3 Schematic diagram of the structure after the door of the heat setting box is opened when it is used in multiple layers.

[0033] Figure 4 For Figure 2 Schematic diagram of the formal structure inside the middle box body.

[0034] Figure 5 Schematic diagram of the layout structure of the guide pipe mechanism, hot air pipe mechanism, exhaust pipe mechanism and polyester single wire mesh.

[0035] Figure 6 Schematic diagram of the structure of the heat setting box.

[0036] Figure 7 Schematic diagram of the structure change of the side plate mechanism from the folded state to the horizontal state.

[0037] Figure 8 Schematic diagram of the structure of the guide pipe mechanism.

[0038] Figure 9 For Figure 8 Cross-sectional structure diagram.

[0039] In the attached drawings, the list of components represented by each label is as follows:

[0040] 100, heat setting box; 110, adjustment groove; 111, middle groove; 112, side groove; 120, flame sensor; 130, plate groove; 131, first through groove; 132, second through groove; 133, slot; 140, temperature sensor; 101, gas filter box; 102, material inlet.

[0041] 200, guide pipe mechanism; 210, outer pipe; 211, pipe seat; 212, bolt; 213, U-shaped rod; 220, inner pipe; 230, gas transmission component; 231, housing; 232, air pump; 233, solenoid valve; 240, gas tank; 241, outer tank opening; 242, inner tank opening.

[0042] 300, side plate mechanism; 310, first side plate; 320, second side plate; 311, plate seat; 312, plate body; 301, groove; 302, convex block; 303, bolt; 304, plug.

[0043] 400, hot air pipe mechanism;

[0044] 500, exhaust pipe mechanism;

[0045] 600, polyester single wire mesh. Specific implementation mode

[0046] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Embodiment 1

[0047] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 and Figure 9 . The present invention is a multi-layer heat setting device for the production of polyester mesh monofilaments, including a heat setting box 100 and a guide tube mechanism 200. The guide tube mechanism 200 is fixedly arranged inside the heat setting box 100 in a horizontal and vertical distribution. A hot air duct mechanism 400 is arranged directly above a row of guide tube mechanisms 200. Each hot air duct mechanism 400 is respectively connected to an independent hot air box. A polyester monofilament mesh 600 is wound around each row of guide tube mechanisms 200. The connection lines of the guide tube mechanisms 200 in each row are parallel to the corresponding hot air duct mechanisms 400 and the polyester monofilament mesh 600.

[0048] Specifically, adjustment grooves 110 are evenly distributed on the inner side surface of the back plate of the heat setting box 100. The adjustment grooves 110 include a middle groove 111 and side grooves 112. Side grooves 112 are opened on both sides of the middle groove 111. The adjustment grooves 110 are arranged in one-to-one correspondence with the guide tube mechanism 200. A group of longitudinally distributed material ports 102 are opened on both side walls of the heat setting box 100 for the feeding and discharging of the polyester monofilament mesh 600.

[0049] The guide tube mechanism 200 includes an outer tube 210 and an inner tube 220. The inner tube 220 is fixedly arranged inside the outer tube 210. A tube seat 211 is fixedly arranged at the inner end of the outer tube 210. Bolts 212 are fixedly arranged on both sides of the tube seat 211. The tube seat 211 is slidably installed in the corresponding middle groove 111. The screw rod of the bolt 212 passes through the side groove 112. The nut in the bolt 212 is fastened on the screw rod and placed outside the side groove 112. The tube seat 211 is limited in the middle groove 111 by the bolt 212. A U-shaped rod 213 is fixedly arranged on the peripheral side of the outer tube 210.

[0050] Further, the hot air duct mechanism 400 is composed of a row of hoses, and air outlets are evenly distributed at the bottom of each hose. The row of hoses alternately passes through the inner and outer sides of each U-shaped rod 213 of the row of guiding duct mechanisms 200, that is, the row of hoses passes through the outer side of the previous U-shaped rod 213, then passes through the inner side of the next U-shaped rod 213, and then passes through the outer side of the next U-shaped rod 213, passing through each U-shaped rod 213 in turn. The two ends of the row of hoses respectively cross the two side plates of the heat setting box 100, and the two ends of the row of hoses are respectively connected by two cross pipes. The air port of one side cross pipe is connected to the air outlet pipe of the hot air box, and the air port of the other side cross pipe is connected to the exhaust pipe.

[0051] The operation process of this embodiment is as follows: During normal production, the polyester monofilament mesh 600 is fed from the material inlet 102 on one side, then wound around a set of guiding duct mechanisms 200, and then discharged from the material inlet 102 on the other side. The discharging end of the polyester monofilament mesh 600 is wound on the automatic winding mechanism. During processing, the hot air box provides high-temperature hot air, and the hot air is conveyed into the heat setting box 100 through the hoses of the hot air duct mechanism 400, and then blown from the air outlets of the hoses to the polyester monofilament mesh 600 directly below, heating the polyester monofilament mesh 600 wound on a set of guiding duct mechanisms 200 directly below to make the polyester monofilament mesh 600 reach the temperature required for heat setting, thus completing the heat setting operation;

[0052] In addition, with the above settings, through the setting of the adjusting groove 110, by tightening or loosening the bolt 212, the position of a single guiding duct mechanism 200 can be adjusted. By adjusting the position of the guiding duct mechanism 200, the tension of the polyester monofilament mesh 600 can be controlled. In addition, when adjusting the arc of the polyester monofilament mesh 600, that is, adjusting the tightness of the polyester monofilament mesh 600, the curved path of the hot air duct mechanism 400 also changes with the curved path of the polyester monofilament mesh 600 directly below, so that the hot air duct mechanism 400 and the polyester monofilament mesh 600 are always in a parallel state. Embodiment 2

[0053] Please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 On the basis of Embodiment 1, in order to further improve the space utilization rate and production efficiency of the heat setting box, the present invention further improves the device as follows. Side plate mechanisms 300 are fixed on both the box door and the box back plate of the heat setting box 100. The side plate mechanism 300 includes a first side plate 310 and a second side plate 320. The horizontally arranged first side plate 310 and second side plate 320 are formed into one body by plugging. The horizontally arranged side plate mechanism 300 divides the internal area of the heat setting box 100. Both the first side plate 310 and the second side plate 320 include a plate base 311 and a plate body 312, and the plate base 311 and the plate body 312 are movably connected through a movable shaft.

[0054] Specifically, a set of plate grooves 130 are longitudinally distributed on the heat setting box 100, and the side plate mechanism 300 is correspondingly installed in the corresponding plate grooves 130. The plate grooves 130 include a first through groove 131, a second through groove 132, and a slot 133. A set of longitudinally distributed first through grooves 131 are opened on the box door of the heat setting box 100, a set of longitudinally distributed second through grooves 132 are opened on the box back plate of the heat setting box 100, and a set of longitudinally distributed slots 133 are opened on both inner side walls of the heat setting box 100.

[0055] Furthermore, the first side plate 310 and the second side plate 320 are symmetrically arranged. The plate seat 311 of the first side plate 310 passes through the corresponding first through groove 131, and the plate seat 311 of the second side plate 320 passes through the corresponding second through groove 132. The sizes of both sides of the first side plate 310 and the sizes of both sides of the second side plate 320 are matched with the size of the slot 133; on the upper and lower edges of the inner side surface of the plate seat 311, edges are fixed to prevent the plate seat 311 from slipping out. A groove 301 is opened on the inner side surface of the plate seat 311 of the first side plate 310, and a convex block 302 is fixed on the inner side surface of the plate seat 311 of the second side plate 320. The size of the convex block 302 is matched with the size of the groove 301; on both sides of the connection position between the plate seat 311 and the plate body 312, slots are opened, pins 303 are fixed in the slots on both sides of the plate seat 311, and plug blocks 304 are fixed in the slots on both sides of the plate body 312. The horizontal plate seat 311 and the plate body 312 are limited by the matching pins 303 and plug blocks 304.

[0056] The operation process of this embodiment is as follows: When multiple layers are needed, the plate body 312 of the first side plate 310 is rotated to be horizontal with the plate seat 311, and then the insertion rods of the pins 303 on both sides of the first side plate 310 are inserted into the jacks of the plug blocks 304 on both sides to complete the limitation of the horizontal first side plate 310. Then, the horizontal first side plate 310 is aligned with the slot 133 and pushed into the heat setting box 100. After that, the second side plate 320 corresponding to the height of the first side plate 310 is rotated to be horizontal and limited, and then the horizontal second side plate 320 is aligned with the slot 133 and pushed into the heat setting box 100, so that the groove 301 of the first side plate 310 is inserted into the convex block 302 of the corresponding second side plate 320, thereby dividing the space of the heat setting box 100. According to the above operation, the heat setting box 100 forms a multi-layer space for use;

[0057] In addition, when the heat setting box 100 is not used in multiple layers, the first side plate 310 and the second side plate 320 can be folded and stored outside the heat setting box 100, or can also be horizontally limited outside the heat setting box 100 to be used as an operation board to assist production. Embodiment 3

[0058] Please refer to Figure 1 、 Figure 2, Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 , on the basis of Embodiment 1 and Embodiment 2, in order to further improve the safety performance of the use of the heat setting box, the present invention also makes the following improvements to the device. An exhaust pipe mechanism 500 is connected below the guiding pipe mechanism 200. Two rows of through holes are opened on the circumferential side of the outer pipe 210, and two exhaust nozzles are fixed on the circumferential side of the inner pipe 220. Each nozzle of the inner pipe 220 horizontally penetrates through each through hole of the outer pipe 210 one by one. The outer end of the inner pipe 220 is connected to an air delivery assembly 230, the outer end of the air delivery assembly 230 is connected to an air tank 240, the air tank 240 is filled with inert gas, and the circumferential side of the air delivery assembly 230 is connected to the corresponding exhaust pipe mechanism 500.

[0059] Specifically, an inner groove is opened at the middle position between two adjacent adjustment grooves 110. A flame sensor 120 is fixed in each inner groove. Each flame sensor 120 is electrically connected to a controller inside an external control cabinet. The flame sensor 120 feeds back data in real time and controls the operation of the device; a gas filtration box 101 is fixed at the bottom of the heat setting box 100. A group of air inlets are arranged on one side of the gas filtration box 101, and an air outlet is arranged on the other side of the gas filtration box 101. A group of longitudinally distributed temperature sensors 140 are fixed on one inner wall of the heat setting box 100, and each temperature sensor 140 is respectively located directly below each material port 102.

[0060] Furthermore, the air delivery assembly 230 includes a housing 231 and an air pump 232. The air pump 232 is fixed inside the housing 231. Air ports are connected to both sides and the circumferential side of the air pump 232. An electromagnetic valve 233 is installed at each air port of the air pump 232. Each air pump 232 and each electromagnetic valve 233 are electrically connected to a controller inside an external control cabinet; the air tank 240 is provided with a double tank opening, one of which is an outer tank opening 241 and the other is an inner tank opening 242; one end of the housing 231 is threadedly connected to the outer pipe 210, one air port of the air pump 232 is threadedly connected to the outer port of the inner pipe 220, the other air port of the air pump 232 is threadedly connected to the inner tank opening 242, and the circumferential air port of the air pump 232 is connected to the exhaust pipe mechanism 500 through a connecting pipe;

[0061] The exhaust pipe mechanism 500 includes a U-shaped main pipe and a delivery pipe. The connecting pipes of the air pumps 232 in a row of guiding pipe mechanisms 200 are all connected to the U-shaped main pipe of the corresponding exhaust pipe mechanism 500. Each U-shaped main pipe of the exhaust pipe mechanisms 500 is respectively connected to each air inlet of the gas filtration box 101 through its own delivery pipe.

[0062] The operation process of this embodiment is as follows: During normal use, if the polyester monofilament mesh 600 between the two guiding tube mechanisms 200 catches fire due to high temperature, the flame sensor 120 between the two guiding tube mechanisms 200 immediately transmits the monitored signal to the controller of the external control cabinet. Through the controller of the external control cabinet, the air pumps 232 of the guiding tube mechanisms 200 on both sides of the fire area are immediately started. At the same time, the solenoid valves 233 between the air pumps 232 and the gas cylinders 240 and the solenoid valves 233 between the air pumps 232 and the inner tubes 220 are opened. The inert gas inside the gas cylinder 240 is transported to the inner tube 220 through the air pump 232 and synchronously discharged from each air nozzle of the inner tube 220 in the guiding tube mechanisms 200 on both sides of the fire area, causing the inert gas to quickly and accurately fill the fire area to achieve the purpose of extinguishing a small area of fire;

[0063] When the heat setting box 100 is used as a single layer, when the temperatures detected by each temperature sensor 140 exceed the set threshold, the controller of the external control cabinet will automatically start the air pumps 232 of each guiding tube mechanism 200, and at the same time open the solenoid valves 233 between each air pump 232 and the gas cylinder 240 and the solenoid valves 233 between each air pump 232 and the inner tube 220. The inert gas inside the gas cylinder 240 is transported to the inner tube 220 through the air pump 232 and then discharged from each air nozzle of each inner tube 220, so that the inert gas quickly fills the entire heat setting box 100 to achieve the purpose of extinguishing a large area of fire;

[0064] When the heat setting box 100 is used in multiple layers, when the temperature detected by the temperature sensor 140 of the corresponding box layer exceeds the set threshold, the controller of the external control cabinet will automatically start the air pumps 232 of each guiding tube mechanism 200 of the corresponding box layer, and at the same time open the solenoid valves 233 between each air pump 232 and the gas cylinder 240 of the corresponding box layer and the solenoid valves 233 between each air pump 232 and the inner tube 220 of the corresponding box layer. The inert gas inside the gas cylinder 240 is transported to the inner tube 220 through the air pump 232 and then discharged from each air nozzle of each inner tube 220, so that the inert gas quickly fills the internal space of the corresponding box layer in the heat setting box 100 to achieve the purpose of extinguishing fire within a specific box layer;

[0065] After the preset fire extinguishing time, the controller of the external control cabinet will automatically start the air pumps 232 of each guiding tube mechanism 200, open the solenoid valves 233 on the connecting pipes of the air pumps 232 and the solenoid valves 233 between the air pumps 232 and the inner tubes 220 at the same time. Through the air pump 232, the waste gas generated by the fire in the heat setting box 100 is sucked into the inner tube 220 and discharged to the gas filtration box 101 through the connected exhaust pipe mechanism 500, and then discharged from the air outlet of the gas filtration box 101 after being processed by the gas filtration box 101. Example 4

[0066] The present invention also relates to a heat setting process for polyester mesh monofilaments, which is applied to a multi-layer heat setting device for the production of polyester mesh monofilaments, specifically as follows:

[0067] S1: Raw material preparation stage:

[0068] Wind the polyester monofilament mesh 600 around each row of guide tube mechanisms 200 to ensure that the polyester monofilament mesh 600 is flat and has appropriate tension. Connect the hot air pipe mechanism 400 to an independent hot air box, and connect the exhaust pipe mechanism 500 to the gas filtration box 101 through a delivery pipe;

[0069] S2: Heat setting stage:

[0070] Open the hot air box to make a row of hoses in the hot air pipe mechanism 400 convey hot air into the heat setting box 100 for heat setting operation on the polyester monofilament mesh 600.

[0071] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A multi-layer heat setting device for producing polyester mesh monofilaments, comprising a heat setting box (100), a guide tube mechanism (200) and a side plate mechanism (300); characterized in that: Inside the heat setting box (100), a guiding tube mechanism (200) distributed horizontally and vertically is fixed. On the door and the back panel of the heat setting box (100), side plate mechanisms (300) are fixed. Above a row of the guiding tube mechanisms (200), a hot air duct mechanism (400) is arranged. The hot air duct mechanism (400) is composed of a row of hoses. At the bottom of each hose, air outlets are evenly distributed. The two ends of a row of hoses respectively penetrate through the two side plates of the heat setting box (100). Each of the hot air duct mechanisms (400) is respectively connected to an independent hot air box. Below the guiding tube mechanism (200), an exhaust pipe mechanism (500) is connected. A polyester monofilament mesh (600) is wound around each row of the guiding tube mechanisms (200). The connecting lines of each row of the guiding tube mechanisms (200) are parallel to the corresponding hot air duct mechanisms (400) and the polyester monofilament mesh (600); The guiding tube mechanism (200) includes an outer tube (210) and an inner tube (220). The inner tube (220) is fixed inside the outer tube (210). The outer end of the inner tube (220) is connected to an air delivery component (230). The outer end of the air delivery component (230) is connected to an air tank (240). The air tank (240) is filled with inert gas. The periphery of the air delivery component (230) is connected to the corresponding exhaust pipe mechanism (500); The side plate mechanism (300) includes a first side plate (310) and a second side plate (320). The horizontally arranged first side plate (310) and second side plate (320) are integrated by plugging. The horizontally arranged side plate mechanism (300) divides the internal area of the heat setting box (100). Both the first side plate (310) and the second side plate (320) include a plate base (311) and a plate body (312). The plate base (311) and the plate body (312) are movably connected through a movable shaft; On the inner side surface of the back panel of the heat setting box (100), adjustment grooves (110) are evenly distributed. The adjustment grooves (110) are arranged in one-to-one correspondence with the guiding tube mechanism (200). Inner grooves are formed at the middle positions between adjacent two adjustment grooves (110). A flame sensor (120) is fixed in each inner groove. Each of the flame sensors (120) is electrically connected to a controller inside an external control cabinet; A group of plate grooves (130) are longitudinally distributed on the heat setting box (100). The side plate mechanism (300) is fitted and installed in the corresponding plate grooves (130); At the bottom of the heat setting box (100), a gas filtering box (101) is fixed. On one side of the gas filtering box (101), a group of air inlets are arranged. On the other side of the gas filtering box (101), an air outlet is arranged. On both side walls of the heat setting box (100), a group of longitudinally distributed material ports (102) are formed. On one inner wall of the heat setting box (100), a group of longitudinally distributed temperature sensors (140) are fixed. Each of the temperature sensors (140) is respectively located directly below each material port (102); The gas transmission component (230) includes a housing (231) and a gas pump (232). The gas pump (232) is fixed inside the housing (231). Gas ports are connected to both sides and the periphery of the gas pump (232). An electromagnetic valve (233) is installed at each gas port of the gas pump (232). Each of the gas pumps (232) and each of the electromagnetic valves (233) are electrically connected to a controller inside an external control cabinet; The gas tank (240) is provided with double tank ports, one of which is an outer tank port (241) and the other is an inner tank port (242); One end of the housing (231) is threadedly connected to the outer pipe (210). The gas port on one side of the gas pump (232) is threadedly connected to the outer port of the inner pipe (220). The gas port on the other side of the gas pump (232) is threadedly connected to the inner tank port (242). The gas ports on the periphery of the gas pump (232) are connected to the exhaust pipe mechanism (500) through connecting pipes; The first side plate (310) and the second side plate (320) are symmetrically arranged. The seat (311) of the first side plate (310) passes through the corresponding first through slot (131). The seat (311) of the second side plate (320) passes through the corresponding second through slot (132). The sizes of both sides of the first side plate (310) and the sizes of both sides of the second side plate (320) match the size of the slot (133); Edges are fixed to the upper and lower edges of the inner side surface of the seat (311). A groove (301) is formed on the inner side surface of the seat (311) of the first side plate (310). A convex block (302) is fixed to the inner side surface of the seat (311) of the second side plate (320). The size of the convex block (302) matches the size of the groove (301); Slots are formed on both sides of the connecting position between the seat (311) and the plate body (312). Bolts (303) are fixed in the slots on both sides of the seat (311). Socket blocks (304) are fixed in the slots on both sides of the plate body (312). The horizontal seat (311) and the plate body (312) are limited by the matching bolts (303) and socket blocks (304); 2. The multi-layer heat setting device for producing polyester mesh monofilaments according to claim 1, wherein, The adjustment slot (110) includes a middle slot (111) and side slots (112). Side slots (112) are formed on both sides of the middle slot (111); The plate slot (130) includes a first through slot (131), a second through slot (132) and a slot (133). A set of longitudinally distributed first through slots (131) are formed on the door of the heat setting box (100). A set of longitudinally distributed second through slots (132) are formed on the back panel of the heat setting box (100). A set of longitudinally distributed slots (133) are formed on both inner side walls of the heat setting box (100); 3. A multi-layer heat setting device for producing polyester mesh monofilaments according to claim 2, characterized in that, Two rows of through holes are formed on the periphery of the outer pipe (210). Two rows of air nozzles are fixed to the periphery of the inner pipe (220). Each air nozzle of the inner pipe (220) passes through each through hole of the outer pipe (210) one by one.

4. A multi-layer heat setting device for producing polyester mesh monofilaments according to claim 3, characterized in that, A pipe seat (211) is fixed to the inner end of the outer pipe (210). Bolts (212) are fixed to both sides of the pipe seat (211). The pipe seat (211) is slidably installed in the corresponding middle groove (111). The screw rod of the bolt (212) passes through the side groove (112). The nut of the bolt (212) is fastened to the screw rod and is located outside the side groove (112). The pipe seat (211) is limited in the middle groove (111) by the bolt (212). A U-shaped rod (213) is fixed to the peripheral side of the outer pipe (210).

5. The multi-layer heat setting device for producing polyester mesh monofilaments according to claim 4, characterized in that, A row of flexible hoses alternately pass through the inner and outer sides of the U-shaped rods (213) of a row of guiding pipe mechanisms (200), that is, a row of flexible hoses pass through the outside of the previous U-shaped rod (213), then pass through the inside of the next U-shaped rod (213), and then pass through the outside of the next U-shaped rod (213), and sequentially pass through each U-shaped rod (213). Both ends of a row of flexible hoses are connected by two cross pipes respectively. The air port of one side cross pipe is connected to the air outlet pipe of the hot air box, and the air port of the other side cross pipe is connected to the exhaust pipe.

6. A multi-layer heat setting device for producing polyester mesh monofilaments according to claim 5, characterized in that, The exhaust pipe mechanism (500) includes a U-shaped main pipe and a conveying pipe. The connecting pipes of the air pumps (232) in each row of guiding pipe mechanisms (200) are all connected to the U-shaped main pipe of the corresponding exhaust pipe mechanism (500). Each U-shaped main pipe of the exhaust pipe mechanisms (500) is respectively connected to each air inlet of the gas filtering box (101) through its own conveying pipe.

7. A heat setting process for polyester mesh monofilaments, characterized in that, Applied to a multi-layer heat setting device for producing polyester mesh monofilaments according to any one of claims 1 to 6, specifically as follows: S1: Raw material preparation stage: Wind the polyester monofilament mesh (600) around each row of guiding pipe mechanisms (200), ensure that the polyester monofilament mesh (600) is flat and has appropriate tension, connect the hot air pipe mechanism (400) to an independent hot air box, and connect the exhaust pipe mechanism (500) to the gas filtering box (101) through a conveying pipe; S2: Heat setting stage: Turn on the hot air box, so that a row of flexible hoses in the hot air pipe mechanism (400) conveys hot air into the heat setting box (100) to perform heat setting operation on the polyester monofilament mesh (600).

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