Closed auxiliary heating device for an elasticizer

Abstract

The utility model provides a kind of closed auxiliary heating device of elasticizer, it is related to heating device technical field, including heating pipe group, the one end of heating pipe group is inserted with power supply connecting seat, and the one end of power supply connecting seat is fixedly installed with proximity switch.The utility model has the advantages that: heating pipe group inside closed heating box is set to independent heating structure, and corresponding temperature sensor is set to monitor the temperature of heating in real time, whether heating pipe group needs maintenance is judged according to the feedback of monitoring temperature, power supply connecting seat is controlled to disconnect power supply after heating pipe group needing maintenance, then control heat preservation lifting frame moves heating pipe group to the inside of heat preservation isolation chamber to disassemble and maintain it, can maintain and repair heating pipe group alone without affecting heating inside heating device, improve the convenience of heating pipe group disassembly and maintenance, ensure the stability of production.

Description

Technical Field

[0001] This utility model relates to the field of heating device technology, and in particular to a closed auxiliary heating device for a texturing machine. Background Technology

[0002] A texturing machine is a textile machine that processes untwisted yarns such as polyester and polypropylene into elastic yarns with medium to low elasticity through false twisting. Polyester and polypropylene are actually synthetic fibers that need to be heated and drawn into man-made fibers using a texturing machine. In the textile industry, the texturing machine is a key piece of equipment for producing elastic yarns. By stretching and deforming chemical fibers, it imparts good elasticity and bulkiness to the fibers. The auxiliary heating device plays a crucial role in the operation of the texturing machine; it can precisely control the fiber temperature, thereby improving the physical properties of the fibers and enhancing the quality of the elastic yarns.

[0003] However, most existing texturing machines have auxiliary heating devices that are enclosed cavities, making them inconvenient to disassemble and assemble. Maintenance or cleaning of the heating tubes requires disassembling multiple parts, which is time-consuming and can easily interrupt the production process, making maintenance or cleaning very inconvenient. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a closed auxiliary heating device for a texturing machine to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a closed auxiliary heating device for a texturing machine, comprising a closed heating box installed on the texturing machine. The closed heating box contains a heating guide rail made of thermally conductive material. A heating tube assembly for heating is embedded in the bottom of the heating guide rail. One end of the heating tube assembly is connected to a power supply connector that supplies power and is connected to a power supply circuit. A proximity switch for position sensing is fixedly installed at one end of the power supply connector. The proximity switch is signal-connected to a microprocessor for data processing. The microprocessor is signal-connected to a heat-insulating lifting frame that supports and fixes the heating tube assembly. A heat-insulating isolation cavity located inside the closed heating box is provided at the bottom of the heat-insulating lifting frame. A maintenance sealing plate is provided on one side of the heat-insulating isolation cavity to seal it. A temperature sensor signal-connected to the microprocessor is fixedly installed at the top of the heating guide rail.

[0006] Preferably, in any of the above embodiments, the closed heating box has guide holes for conducting wires at both ends, and a protective rubber ring is provided around the circumference of the guide holes to seal the closed heating box. The top of the heating guide rail has a wire feeding channel for conveying the wires, and the bottom of the heating guide rail has a heating groove for engaging the heating tube assembly. The heating tube assembly has a resistance wire that generates heat inside, and a conductive rod connected to and conducting electricity is provided at one end of the heating tube assembly. The heating tube assembly also has an insulating filling layer that isolates the resistance wire from the outer metal tube to prevent leakage, an outer metal sleeve that isolates oil stains and wire debris in the heating chamber to prevent the insulating layer from getting damp and contaminated, and a sealing layer that seals the non-lead-out ends of the heating tubes to further isolate external impurities and fix the end seals of the internal components.

[0007] The above technical solution is adopted as follows: the wire guide holes at both ends of the enclosed heating box (made of stainless steel, with rock wool insulation) allow the wires to enter and exit. The protective rubber ring around the holes seals the gap between the holes and the wires through elastic deformation, reducing heat loss inside the box and preventing friction damage to the wires. The wire feeding channel at the top of the heating guide rail is used to transport the wires. The heating tube assembly is embedded in the bottom heating groove. The heat is efficiently transferred to the wire feeding channel through close contact. The resistance wire inside the heating tube assembly generates Joule heat when energized. The insulating filling layer isolates the resistance wire from the outer metal tube to prevent leakage. The outer metal sleeve isolates oil and wire debris and prevents the insulation layer from being contaminated by moisture. The end seal seals the non-lead-out ends and fixes the internal components.

[0008] Preferably, in any of the above embodiments, the power supply connector includes an electric telescopic rod connected to a microprocessor signal and a power supply socket connected to a power supply circuit. The electric telescopic rod is fixedly installed inside the enclosed heating box, and a power supply socket located inside the enclosed heating box is fixedly installed at one end of the electric telescopic rod. An access rod for support is provided at one corner of the bottom of the power supply socket.

[0009] The above technical solution is adopted: the electric telescopic rod (mini electric push rod, connected to the microprocessor via PWM signal) of the power supply connector is fixed to the inner side wall of the closed heating box, the output end is fixed to the power supply connector by bolts, and the inside is provided with a slot adapted to the conductive rod of the heating tube group. The proximity rod (made of stainless steel and welded to the power supply connector) at one corner of the bottom of the power supply connector is used to install a proximity switch to ensure accurate sensing distance between the switch and the heating tube group.

[0010] Preferably, in any of the above embodiments, the proximity switch is signal-connected to the microprocessor, and the proximity switch is fixedly installed inside the proximity rod.

[0011] The above technical solution employs a proximity switch (an inductive proximity switch, fixed inside the proximity rod with screws, and the detection end aligned with the end of the conductive rod of the heating element assembly), which is connected to the microprocessor. Its core function is to detect the docking position between the power supply socket and the heating element assembly. Its purpose is to provide the microprocessor with a docking signal to prevent the power supply socket from excessively squeezing the conductive rod or causing poor contact due to improper docking. The principle is that when the conductive rod (conductor) enters the detection range of the switch, the switch generates electromagnetic induction and outputs a high-level signal; when it leaves the range, it outputs a low-level signal.

[0012] Preferably, in any of the above embodiments, the heat-insulating lifting frame includes a pneumatic telescopic rod connected to a microprocessor signal, a heat-insulating support made of heat-insulating material, and a laser ranging sensor connected to a microprocessor signal. The pneumatic telescopic rod is fixedly installed at the bottom of the closed heating box. A heat-insulating support fitted to both ends of the heating tube assembly is fixedly installed at the top of the pneumatic telescopic rod. A laser ranging sensor for detecting the position of the heat-insulating support is fixedly installed at the bottom of the heat-insulating support.

[0013] The above technical solution is adopted: the pneumatic telescopic rod (double-acting cylinder, connected to the microprocessor via solenoid valve signal) of the heat preservation lifting frame is fixed to the bottom of the closed heating box, and the top is fixed with bolts to the heat insulation support (ceramic material, with grooves inside to fit the two ends of the heating tube group). The laser range sensor (triangular reflective type, connected to the microprocessor signal) at the bottom of the heat insulation support is used to detect the lifting position of the heat insulation support.

[0014] Preferably, in any of the above embodiments, the thermal insulation cavity is located at the bottom of the enclosed heating box, and the top of the thermal insulation cavity is provided with a thermal insulation plate located inside the enclosed heating box. Both ends of the thermal insulation plate are provided with thermal insulation pads for sealing the pneumatic telescopic rod.

[0015] The above technical solution is adopted: the insulation isolation plate (insulation cotton of the same material with sealing grooves on the edges) at the top of the insulation isolation cavity (located at the bottom of the closed heating box, with insulation cotton on the inner wall) forms a heat insulation barrier by fitting with the inner wall of the closed heating box through the sealing grooves, thus preventing heat from the heating working area from being transferred to the isolation cavity. The insulation pads at both ends of the isolation plate are fitted onto the surface of the pneumatic telescopic rod, sealing the gap between the telescopic rod and the isolation plate, further reducing heat loss.

[0016] Preferably, one end of the maintenance enclosure plate is provided with a heat-insulating fastening pad that fits tightly against the enclosed heating box, and the temperature sensor is located inside the enclosed heating box.

[0017] The above technical solution employs the following: A maintenance enclosure plate (made of stainless steel with insulating and fastening pads on the edges) is tightly bolted to the enclosed heating chamber. Its core function is to seal and insulate the chamber. During maintenance, the enclosure plate can be opened for operation; after maintenance, it is closed to seal the chamber with the insulating and fastening pads, reducing heat loss and the entry of impurities. A temperature sensor (a platinum resistance temperature sensor, threaded into the enclosed heating chamber, with the sensing end attached to the top of the heating guide rail) is connected to the microprocessor. Its core function is to monitor the temperature of the heating guide rail in real time, providing temperature feedback to the microprocessor to adjust the power of the heating tube assembly and ensure that the wire heating temperature meets process requirements. The principle is that temperature changes cause changes in the sensor's resistance value. The microprocessor collects the resistance signal, converts it into a temperature value, compares it with the set temperature, and outputs a power adjustment command.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. The heating tube assembly inside the enclosed heating chamber is set as an independent heating structure, and a corresponding temperature sensor is installed to monitor its heating temperature in real time. Based on the feedback of the monitored temperature, it is determined whether the heating tube assembly needs maintenance. After the power supply connector is disconnected from the heating tube assembly that needs maintenance, the insulation lifting frame is controlled to move the heating tube assembly into the insulation isolation chamber for disassembly, assembly, and maintenance. This allows for maintenance of individual heating tube assemblies without affecting the heating of the internal heating device, improving the convenience of disassembly, assembly, and maintenance of heating tube assemblies and ensuring production stability.

[0019] 2. The enclosed heating box is divided into two parts by using an insulated isolation chamber: a heating working area and a disassembly and maintenance area. An enclosed insulated isolation structure is set between the two to ensure that maintenance is carried out without affecting the normal operation of the heating work, thus ensuring the stability of the heating work and the convenience of maintenance.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model; Figure 2 This is a partial exploded structural diagram according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the heating tube assembly according to an embodiment of the present invention; Figure 4This is a structural schematic diagram of the power supply connector according to an embodiment of the present utility model; Figure 5 This is a side sectional view of the enclosed heating box according to an embodiment of the present invention; The components are: 1-enclosed heating box, 2-heating guide rail, 3-heating tube assembly, 4-power supply connector, 41-electric telescopic rod, 42-power supply base, 5-proximity switch, 6-insulated lifting frame, 61-pneumatic telescopic rod, 62-heat insulation support, 63-laser rangefinder sensor, 7-insulated isolation chamber, 8-maintenance enclosure plate, 9-temperature sensor, 10-proximity rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0023] like Figure 1-5 As shown in the figure, a closed auxiliary heating device for a texturing machine according to an embodiment of the present invention includes a closed heating box 1 installed on the texturing machine. The closed heating box 1 is provided with a heating guide rail 2 made of heat-conducting material. A heating tube assembly 3 for heating is embedded in the bottom of the heating guide rail 2. One end of the heating tube assembly 3 is connected to a power supply connector 4 that supplies power and is connected to a power supply circuit. One end of the power supply connector 4 is fixedly installed with a proximity switch 5 for position sensing. The proximity switch 5 is signal-connected to a microprocessor for data processing. The microprocessor is signal-connected to a heat-insulating lifting frame 6 that supports and fixes the heating tube assembly 3. The bottom of the heat-insulating lifting frame 6 is provided with a heat-insulating isolation cavity 7 located inside the closed heating box 1. A maintenance sealing plate 8 is provided on one side of the heat-insulating isolation cavity 7 to seal it. A temperature sensor 9 that is signal-connected to the microprocessor is fixedly installed at the top of the heating guide rail 2.

[0024] Preferably, in any of the above embodiments, the closed heating box 1 has guide holes for conducting wires at both ends, and a protective rubber ring is provided around the circumference of the guide holes to seal the closed heating box 1. The top of the heating guide rail 2 is provided with a wire feeding channel for conveying the wires, and the bottom of the heating guide rail 2 is provided with a heating groove for engaging the heating tube assembly 3. The heating tube assembly 3 is provided with a resistance wire that generates heat inside, and a conductive rod connected to and conducting electricity is provided at one end of the heating tube assembly 3. The heating tube assembly 3 also has an insulating filling layer that isolates the resistance wire from the outer metal tube to prevent leakage, an outer metal sleeve that isolates oil stains and wire debris in the heating chamber to prevent the insulating layer from getting damp and contaminated, and a sealing of the non-lead-out end of the heating tube to further isolate external impurities and fix the end seal of the internal components.

[0025] The above technical solution is adopted as follows: the wire guide holes at both ends of the enclosed heating box 1 (made of stainless steel, with rock wool insulation) allow the wires to enter and exit. The protective rubber ring around the holes seals the gap between the holes and the wires through elastic deformation, reducing heat loss inside the box and preventing friction damage to the wires. The wire feeding channel at the top of the heating guide rail 2 is used to transport the wires. The heating tube assembly 3 is embedded in the bottom heating groove. The heat is efficiently transferred to the wire feeding channel through close contact. The resistance wire inside the heating tube assembly 3 generates Joule heat when energized. The insulating filling layer isolates the resistance wire from the outer metal tube to prevent leakage. The outer metal sleeve isolates oil and wire debris and prevents the insulation layer from being contaminated by moisture. The end seal seals the non-lead-out end and fixes the internal components.

[0026] Its core function is to construct a closed heating environment to achieve precise heating and stable delivery of the wire. Its role is to reduce heat loss through a closed heating chamber, provide a stable heat source through the heating tube assembly, and transfer heat to the wire through the heating guide rail, ensuring uniform heating temperature. Operating principle: The resistance wire heats up when energized, and the heat is transferred to the heating guide rail through the insulating filling layer and outer metal tube. The heated guide rail then heats the wire in the wire feeding channel. The closed heating chamber maintains a stable internal temperature, and a protective rubber ring seals the wire guide hole to reduce heat leakage and impurity entry. Operation process: The wire enters the closed heating chamber through the wire guide hole, is transported along the heating guide rail wire feeding channel, and is output from the other end of the wire guide hole after being heated by the guide rail. Temperature sensor 9 monitors the guide rail temperature in real time, and the microprocessor adjusts the power of the heating tube assembly based on the monitoring data to ensure that the wire heating temperature meets process requirements. The control principle achieves precise temperature control through the adjustment of the heating tube assembly power and the closed insulation structure. The protective rubber ring adapts to wires of different diameters through elastic sealing, eliminating the need for additional adjustment.

[0027] Preferably, in any of the above solutions, the power supply connector 4 includes an electric telescopic rod 41 connected to a microprocessor signal and a power supply base 42 connected to a power supply circuit. The electric telescopic rod 41 is fixedly installed inside the enclosed heating box 1. One end of the electric telescopic rod 41 is fixedly installed with the power supply base 42 located inside the enclosed heating box 1. A support access rod 10 is provided at one corner of the bottom of the power supply base 42.

[0028] The above technical solution is adopted: the electric telescopic rod 41 (mini electric push rod, connected to the microprocessor via PWM signal) of the power supply connector 4 is fixed to the inner side wall of the closed heating box 1, and the output end is fixed to the power supply 42 by bolts. The slots adapted to the conductive rods of the heating tube group 3 are opened inside. The proximity rod 10 (made of stainless steel, welded and fixed to the power supply 3) at one corner of the bottom of the power supply 4 is used to install the proximity switch 5 to ensure the accurate sensing distance between the switch and the heating tube group.

[0029] Its core function is to automatically power on and off the heating element assembly 3. This is achieved by using an electric telescopic rod to move the power supply socket, allowing the socket slot to connect / disconnect with the conductive rod of the heating element assembly. This avoids the tediousness of manual plugging and unplugging and the risk of electric shock. The principle is that the microprocessor controls the electric telescopic rod to extend and retract based on heating requirements or maintenance commands, moving the power supply socket closer to / away from the heating element assembly to complete power supply / disconnection. The operation process is as follows: When heating is required, the microprocessor controls the electric telescopic rod 41 to extend, pushing the power supply socket 42 towards the heating element assembly 3. When the socket slot connects with the conductive rod (connection is detected by proximity switch 5), the microprocessor controls the power supply circuit to conduct, energizing the heating element assembly. When maintenance is required, the microprocessor first cuts off the power supply circuit, then controls the electric telescopic rod to retract, causing the power supply socket to detach from the conductive rod, creating space for the heating element assembly to move. The control principle ensures precise connection through the stroke control of the electric telescopic rod, and the proximity switch's sensing signal provides feedback on the connection status, forming a closed-loop control of "command-extension-connection-power-on," automatically completing the power supply operation without manual intervention.

[0030] Preferably, in any of the above schemes, the proximity switch 5 is signal-connected to the microprocessor, and the proximity switch 5 is fixedly installed inside the proximity lever 10.

[0031] The above technical solution is adopted: the proximity switch 5 (an inductive proximity switch, fixed inside the proximity rod 10 by screws, with the detection end aligned with the end of the conductive rod of the heating tube assembly 3) is connected to the microprocessor signal. Its core function is to detect the docking position between the power supply socket 42 and the heating tube assembly. Its role is to provide the microprocessor with a docking signal to avoid the power supply socket from excessively squeezing the conductive rod or poor contact due to improper docking. The principle is that when the conductive rod (conductor) enters the detection range of the switch, the switch generates electromagnetic induction and outputs a high-level signal; when it leaves the range, it outputs a low-level signal.

[0032] Operation process: The electric telescopic rod 41 pushes the power supply base 42 close to the heating tube assembly 3. When the end of the conductive rod enters the detection range of the proximity switch 5, the switch outputs a high-level signal. After receiving the high-level signal, the microprocessor controls the electric telescopic rod to stop extending, ensuring that the power supply base slot and the conductive rod are accurately connected. Subsequently, the microprocessor controls the power supply circuit to be turned on, and the heating tube assembly is powered on. During maintenance, the power supply base is detached from the conductive rod, and the switch outputs a low-level signal. The microprocessor confirms the disconnection and controls the heating and lifting frame 6 to start. The control principle ensures that the connection position is consistent each time by using the detection distance and repeatability accuracy of the switch. The duration of the high-level signal (set by the microprocessor) ensures stable power supply and avoids loosening of the connection due to vibration.

[0033] Preferably, the heat-insulating lifting frame 6 includes a pneumatic telescopic rod 61 connected to a microprocessor signal, a heat-insulating support 62 made of heat-insulating material, and a laser rangefinder 63 connected to a microprocessor signal. The pneumatic telescopic rod 61 is fixedly installed at the bottom of the closed heating box 1. The top of the pneumatic telescopic rod 61 is fixedly installed with the heat-insulating support 62 fitted to both ends of the heating tube assembly 3. The bottom of the heat-insulating support 62 is fixedly installed with the laser rangefinder 63 for detecting its position.

[0034] The above technical solution is adopted: the pneumatic telescopic rod 61 (double-acting cylinder, connected to the microprocessor via solenoid valve signal) of the heat preservation lifting frame 6 is fixed to the bottom of the closed heating box 1, and the top is fixed with bolts to the heat insulation support 62 (ceramic material, with grooves inside for fitting the two ends of the heating tube assembly 3). The laser range sensor 63 (triangular reflective type, connected to the microprocessor signal) at the bottom of the heat insulation support is used to detect the lifting position of the heat insulation support.

[0035] Its core function is to support the heating tube assembly 3 and drive its lifting and lowering. Its purpose is to use a pneumatic telescopic rod to switch the heating tube assembly between the heating working position (fitted into the heating groove of the heating guide rail 2) and the maintenance position (lowered to the heat insulation cavity 7), achieving rapid switching between heating and maintenance. The principle is that the microprocessor controls the extension and retraction of the pneumatic telescopic rod based on the fault signal from the temperature sensor 9 or the timed maintenance command, driving the heat insulation support and the heating tube assembly to rise and fall. A laser rangefinder provides real-time position feedback to ensure accurate lifting and lowering. During operation: When heating, the pneumatic telescopic rod 61 extends, pushing the heat insulation support 62 and the heating tube assembly 3 upwards, causing the heating tube assembly... The heating element is fitted into the heating guide rail and heating groove to complete its positioning. When maintenance is required, the power supply base 42 detaches from the heating tube assembly, and the microprocessor controls the pneumatic telescopic rod to retract, driving the heating tube assembly down into the heat insulation isolation chamber 7. The operator can then open the maintenance sealing plate 8 to perform maintenance. After maintenance, the pneumatic telescopic rod extends again to send the heating tube assembly back to the heating working position. The control principle forms a closed-loop control through the stroke control of the pneumatic telescopic rod and the position feedback of the laser rangefinder sensor, ensuring that the heating tube assembly is accurately positioned in the working or maintenance position. The low thermal conductivity of the heat insulation support reduces the transfer of heat from the heating tube assembly to the pneumatic telescopic rod, protecting the telescopic rod.

[0036] Preferably, in any of the above solutions, the thermal insulation cavity 7 is located at the bottom of the enclosed heating box 1, and the top of the thermal insulation cavity 7 is provided with a thermal insulation plate located inside the enclosed heating box 1. Both ends of the thermal insulation plate are provided with thermal insulation pads for fitting and sealing the pneumatic telescopic rod 61.

[0037] The above technical solution is adopted: the insulation isolation plate (insulation cotton of the same material with sealing grooves on the edges) at the top of the insulation isolation cavity 7 (opened at the bottom of the closed heating box 1, with insulation cotton on the inner wall) is attached to the inner wall of the closed heating box through the sealing grooves to form a heat insulation barrier, which prevents heat from the heating working area from being transferred to the isolation cavity. The insulation pads at both ends of the isolation plate are fitted onto the surface of the pneumatic telescopic rod 61 to seal the gap between the telescopic rod and the isolation plate, further reducing heat loss.

[0038] Its core function is to divide the heating working area and the maintenance area. Its purpose is to maintain the temperature stability of the heating working area through the heat insulation isolation structure when maintaining the heating tube group 3, so as not to affect the normal operation of other heating tube groups (single group maintenance, multiple groups working). The principle is that the heat insulation isolation plate and the heat insulation pad form a closed heat insulation space to block heat transfer. At the same time, the isolation chamber provides maintenance operation space for the heating tube group. Operation process: After the heating tube group 3 is lowered to the heat insulation isolation chamber 7, the heat insulation isolation plate isolates the heat of the working area, and the temperature in the isolation chamber drops rapidly to room temperature. The operator opens the maintenance sealing plate 8 and disassembles and cleans the heating tube group in the isolation chamber. At this time, other heating tube groups in the closed heating box 1 are still working normally, and the wire heating is not affected. The control principle achieves non-powered heat insulation through the low thermal conductivity of the insulation material and the sealing structure. It can maintain the temperature difference between the working area and the maintenance area without additional temperature control, ensuring that maintenance and production are carried out simultaneously.

[0039] Preferably, one end of the maintenance sealing plate 8 is provided with a heat-insulating fastening pad that fits tightly with the sealed heating box 1, and the temperature sensor 9 is located inside the sealed heating box 1.

[0040] The above technical solution is adopted as follows: The maintenance sealing plate 8 (made of stainless steel with heat-insulating fastening pads on the edges) is tightly sealed to the sealed heating box 1 by bolts. Its core function is to seal the heat-insulating isolation chamber 7. During maintenance, the sealing plate can be opened for operation, and after maintenance, it is closed and the isolation chamber is sealed by the heat-insulating fastening pads to reduce heat loss and impurity entry. The temperature sensor 9 (platinum resistance temperature sensor, fixed inside the sealed heating box 1 by threads, with the detection end attached to the top of the heating guide rail 2) is connected to the microprocessor. Its core function is to monitor the temperature of the heating guide rail in real time. Its function is to provide temperature feedback to the microprocessor and adjust the power of the heating tube group 3 to ensure that the wire heating temperature meets the process requirements. The principle is that the temperature change causes the sensor resistance value to change. The microprocessor collects the resistance signal, converts it into a temperature value, compares it with the set temperature, and outputs a power adjustment command.

[0041] Operation process: Temperature sensor 9 continuously monitors the temperature of heating rail 2. If the temperature is lower than the set value, the microprocessor controls the heating tube group 3 to increase the power. If the temperature is higher than the set value, the power is reduced. During maintenance, the maintenance sealing plate 8 is opened to operate the heating tube group in the isolation cavity. After maintenance, the sealing plate is closed, and the heat insulation fastening pad is deformed under pressure to seal the isolation cavity. The control principle achieves precise control of heating temperature through the high-precision detection of temperature sensor and the power adjustment algorithm of microprocessor. The heat insulation fastening pad of maintenance sealing plate is elastically sealed to fit the opening of the isolation cavity, ensuring the heat insulation effect without additional sealing measures.

[0042] The working principle of the enclosed auxiliary heating device for a texturing machine of this utility model is as follows: After the device is started, the microprocessor first controls the electric telescopic rod 41 of the power supply connector 4 to extend, pushing the power supply base 42 towards the heating tube assembly 3. When the proximity switch 5 inside the proximity rod 10 senses that the power supply base and the conductive rod of the heating tube assembly are in place, it sends a feedback signal to the microprocessor. The microprocessor then controls the power supply circuit to conduct, and the resistance wire inside the heating tube assembly 3 is energized to generate Joule heat. The heat is transferred through the insulating filling layer and the outer metal tube to the fitted heating guide rail 2. After the heating guide rail heats up, it heats the wire in the top wire feeding channel. The wire enters from one end of the wire guide hole (sealed by a protective rubber ring around the hole) of the closed heating box 1, is transported along the wire feeding channel of the heating guide rail, and is output from the other end of the wire guide hole after heating. The temperature sensor 9 at the top of the heating guide rail monitors the temperature in real time and transmits the data to the microprocessor. The processor adjusts the power of the heating tube assembly according to the preset process temperature. The laser range sensor 63 of the heat insulation lifting frame 6 detects the position of the heat insulation support 62 in real time to ensure that the heating tube assembly is stably embedded in the heating guide rail heating groove. When maintenance is required, the microprocessor first cuts off the power supply to the heating tube assembly, controls the electric telescopic rod to retract so that the power supply seat is separated from the conductive rod, and then controls the pneumatic telescopic rod 61 to retract, driving the heat insulation support and the heating tube assembly to descend into the heat insulation isolation chamber 7 (the top heat insulation isolation plate and rubber pad isolate heat). The operator can open the maintenance sealing plate 8 for maintenance. After maintenance, the pneumatic telescopic rod pushes the heating tube assembly to reset. According to the data feedback from the laser range sensor 63, the electric telescopic rod drives the power supply seat to reconnect and restore heating. All structures work together to achieve precise heating of the wire and convenient maintenance of the heating tube assembly.

[0043] Compared with the prior art, the present invention has the following advantages: 1. The heating tube assembly 3 inside the enclosed heating box 1 is set as an independent heating structure, and a corresponding temperature sensor 9 is set to monitor its heating temperature in real time. Based on the feedback of the monitored temperature, it is determined whether the heating tube assembly 3 needs maintenance. After the power supply connector 4 disconnects the power to the heating tube assembly 3 that needs maintenance, the insulation lifting frame 6 is controlled to move the heating tube assembly 3 into the insulation isolation chamber 7 for disassembly, assembly and maintenance. This allows for maintenance of the individual heating tube assembly 3 without affecting the heating inside the heating device, improving the convenience of disassembly, assembly and maintenance of the heating tube assembly 3 and ensuring the stability of production.

[0044] 2. The enclosed heating box 1 is divided into two parts by using the heat insulation isolation chamber 7: the heating working area and the disassembly and maintenance area. A closed heat insulation isolation structure is set between the two to ensure that the normal operation of the heating work is not affected while maintenance is carried out, thus ensuring the stability of the heating work and the convenience of maintenance.

Claims

1. A closed auxiliary heating device for a texturing machine, comprising a closed heating box (1) installed on the texturing machine, wherein a heating guide rail (2) made of heat-conducting material is provided inside the closed heating box (1), and a heating tube assembly (3) for heating is fitted into the bottom of the heating guide rail (2), characterized in that: One end of the heating tube assembly (3) is connected to a power supply connector (4) that supplies power and connects to the power supply circuit. One end of the power supply connector (4) is fixedly installed with a proximity switch (5) for position sensing. The proximity switch (5) is signal-connected to a microprocessor for data processing. The microprocessor is signal-connected to a heat preservation lifting frame (6) that supports and fixes the heating tube assembly (3). The bottom of the heat preservation lifting frame (6) is provided with a heat preservation isolation cavity (7) located inside the closed heating box (1). One side of the heat preservation isolation cavity (7) is provided with a maintenance sealing plate (8) for sealing it. The top of the heating guide rail (2) is connected to a temperature sensor (9) that is signal-connected to the microprocessor.

2. The enclosed auxiliary heating device for a texturing machine as described in claim 1, characterized in that: The closed heating box (1) has guide holes for conducting wires at both ends. The guide holes are provided with protective rubber rings to seal the closed heating box (1) around their circumference. The heating guide rail (2) has a wire feeding channel at its top end. The heating guide rail (2) has a heating groove at its bottom for engaging the heating tube assembly (3). The heating tube assembly (3) has a resistance wire that generates heat inside. One end of the heating tube assembly (3) has a conductive rod that is connected to the resistance wire and conducts electricity.

3. The enclosed auxiliary heating device for a texturing machine as described in claim 2, characterized in that: The power supply connector (4) includes an electric telescopic rod (41) connected to a microprocessor signal and a power supply connector (42) connected to a power supply circuit. The electric telescopic rod (41) is fixedly installed inside the closed heating box (1). One end of the electric telescopic rod (41) is fixedly installed with a power supply connector (42) located inside the closed heating box (1). A support access rod (10) is provided at one corner of the bottom of the power supply connector (42).

4. The enclosed auxiliary heating device for a texturing machine as described in claim 3, characterized in that: The proximity switch (5) is connected to the microprocessor signal and is fixedly installed inside the proximity rod (10).

5. The enclosed auxiliary heating device for a texturing machine as described in claim 4, characterized in that: The heat preservation lifting frame (6) includes a pneumatic telescopic rod (61) connected to a microprocessor signal, a heat insulation support (62) made of heat insulation material, and a laser rangefinder (63) connected to a microprocessor signal. The pneumatic telescopic rod (61) is fixedly installed at the bottom of the closed heating box (1). The top of the pneumatic telescopic rod (61) is fixedly installed with a heat insulation support (62) fitted to both ends of the heating tube assembly (3). The bottom of the heat insulation support (62) is fixedly installed with a laser rangefinder (63) for detecting its position.

6. The enclosed auxiliary heating device for a texturing machine as described in claim 5, characterized in that: The thermal insulation cavity (7) is located at the bottom of the closed heating box (1). The top of the thermal insulation cavity (7) is provided with a thermal insulation plate located inside the closed heating box (1). Both ends of the thermal insulation plate are provided with thermal insulation pads for fitting and sealing the pneumatic telescopic rod (61).

7. The enclosed auxiliary heating device for a texturing machine as described in claim 6, characterized in that: One end of the maintenance sealing plate (8) is provided with a heat-insulating fastening pad that fits tightly with the sealed heating box (1), and the temperature sensor (9) is located inside the sealed heating box (1).

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