Self-cleaning core-spun temperature detection device

Abstract

The utility model discloses a self-cleaning core temperature detection device which comprises a main frame and control equipment, and further comprises lifting equipment arranged on the main frame and connected with a lifting platform in a lifting manner; the driving mechanism comprises a driving air cylinder and a fixing plate, one end of the driving air cylinder is connected to the upper surface of the lifting platform, and a push rod of the driving air cylinder penetrates through the lifting platform to be connected with the upper end face of the fixing plate; the cleaning assembly is connected to the fixing plate; the range finders are connected to the two sides of the middle of the lifting platform respectively; the plurality of temperature sensors are respectively connected to the lower end surface of the fixed plate; and the lower part of the cleaning assembly sleeves the outer side of each temperature sensor. The device is simple to operate, and can automatically remove the adhered objects on the surface of the temperature sensor, thereby ensuring the measurement precision and improving the equipment stability; and the product quality in the production process can be guaranteed, and the automation level and the intelligent level of the equipment are greatly improved.

Description

Technical Field

[0001] This utility model relates to a detection device, specifically a self-cleaning core temperature detection device, mainly used for online monitoring of core temperature after vacuum rehumidification process in the tobacco industry, belonging to the field of tobacco industry automation and process control technology. Background Technology

[0002] In the tobacco industry, vacuum rehumidification plays a crucial role in the quality of tobacco leaves and the overall quality of finished cigarettes. Precise control of the core temperature is a key factor in ensuring the quality of vacuum rehumidification. However, during long-term operation, the surface of traditional temperature monitoring devices is prone to the adhesion of tobacco leaf debris and other substances to the temperature sensor. These substances can cause the following problems for the temperature sensor:

[0003] 1. Affects measurement accuracy: Substances such as tobacco leaf debris may hinder heat transfer between the sensor and the object being measured, causing the temperature reading to be lower than the true value of the measured temperature. This will directly affect the measurement results of the temperature sensor, making it inaccurate.

[0004] 2. Increased thermal resistance: At high temperatures, if there is a layer of deposits on the protective tube, the thermal resistance will increase, hindering heat conduction. This will cause the temperature read by the sensor to be lower than the actual temperature, thus introducing errors.

[0005] 3. Reduced response time: Contaminants may affect the sensor's heat dissipation and response speed, causing the sensor to respond more slowly to temperature changes.

[0006] 4. Increased maintenance costs: The presence of contaminants may require more frequent cleaning and maintenance, increasing maintenance costs and workload.

[0007] 5. Reduced reliability: Contamination on the sensor surface can affect its response time, sensitivity, and accuracy, thus reducing the sensor's reliability.

[0008] 6. Impact on sensor lifespan: Long-term adherence of contaminants may cause sensor performance to degrade and affect its lifespan.

[0009] Therefore, it can be concluded that keeping the surface of the temperature sensor clean is very important. This can ensure the accuracy, response speed and overall performance of the sensor, while also reducing maintenance costs and the risk of failure.

[0010] A search revealed that Chinese utility model patent CN212164874U discloses an online monitoring device for the temperature of the tobacco packs during vacuum rehydration. The device includes: a main frame; a control unit for controlling the operation of the monitoring device; position sensors mounted on the track of the chamber for detecting the chamber at designated positions; a laser rangefinder mounted on the main frame, corresponding to the four corners of the chamber at designated positions, for laser measurement of the thickness of the tobacco packs inside the chamber and obtaining the center position of the tobacco packs; a cylinder mounted on the main frame, located above the chamber; and a temperature sensor located below the cylinder, moving with the cylinder to achieve PLC program control of the vacuum rehydration temperature detection process, thus improving the efficiency, accuracy, and automation of the detection. While this temperature monitoring device can detect the temperature of the vacuum rehydration chamber, it lacks a dedicated cleaning plate or equipment for cleaning the temperature sensor. This results in the accumulation of tobacco leaf debris and other substances on the sensor surface during prolonged operation, leading to decreased measurement accuracy and larger measurement errors.

[0011] Therefore, the key to solving the above technical problems lies in developing a self-cleaning core temperature detection device that is simple to operate and accurate in measurement. Summary of the Invention

[0012] In view of the many defects and shortcomings existing in the above-mentioned background technology, this utility model has made improvements and innovations, with the aim of providing a device that can automatically remove adhering substances from the sensor surface, thereby ensuring measurement accuracy and improving equipment stability.

[0013] Another objective of this invention is to fully guarantee the quality of products during the production process and greatly improve the automation and intelligence level of the equipment.

[0014] To solve the above problems and achieve the above-mentioned invention objectives, this utility model provides a self-cleaning core temperature detection device by adopting the following design structure and the following technical solution:

[0015] A self-cleaning core temperature detection device includes a main frame (1) and a control device, and further includes:

[0016] Lifting device (2), the lifting device (2) is set on the main frame (1), and the lifting device (2) is connected to the lifting platform (21) in a lifting manner;

[0017] The drive mechanism (3) includes a drive cylinder (31) and a fixed plate (32). One end of the drive cylinder (31) is connected to the upper surface of the lifting platform (21), and the push rod of the drive cylinder (31) passes through the lifting platform (21) and is connected to the upper surface of the fixed plate (32).

[0018] Cleaning component (4) is attached to the fixing plate (32);

[0019] The rangefinder (5) is connected to both sides of the middle part of the lifting platform (21);

[0020] Several temperature sensors (6) are connected to the lower end face of the fixed plate (32);

[0021] The lower part of the cleaning component (4) is sleeved on the outside of each temperature sensor (6).

[0022] Preferably, it also includes a guide assembly (7) connected to the lifting platform (21), the guide assembly (7) comprising:

[0023] Guide rod (71), one end of guide rod (71) is connected to the upper end face of fixed plate (32), and the other end is sleeved in guide cylinder (72);

[0024] Guide cylinder (72), guide cylinder (71) is connected to the lifting platform (21);

[0025] Among them, the guide rod (71) passes through the guide cylinder (71) and the lifting platform (21) in sequence and connects to the fixed plate (32).

[0026] Preferably, the lifting device (2) includes:

[0027] Drive motor (22) is connected to one side of the crossbeam above the main frame (1);

[0028] The reducer (23) is connected to the other side of the crossbeam above the main frame (1), and the reducer (23) is connected to the output shaft of the drive motor (22) via transmission.

[0029] Screw jacks (24) are symmetrically arranged at the middle of both ends above the main frame (1);

[0030] The first transmission rod (25) has one end connected to one end of the reducer (23) and the other end connected to the corresponding screw jack (24).

[0031] The second transmission rod (26) has one end connected to the other end of the reducer (23) and the other end connected to the corresponding screw jack (24).

[0032] Screw (27), screw (27) is connected to screw jack (24) at the corresponding end;

[0033] Screw connecting plate (28), screw connecting plate (28) is connected to each screw (27);

[0034] The lifting platform (21) is connected between two lead screw connecting plates (28); the drive motor (22) is connected to the control equipment.

[0035] Preferably, it also includes guide rods (29) symmetrically sleeved on one side of both ends of the lifting platform (21), one end of the guide rod (29) is connected to the upper fixed frame (11) of the main frame (1), and the other end of the guide rod (29) is connected to the lower fixed frame (12) of the main frame (1).

[0036] Preferably, it also includes limit protection travel switches (8) set at the upper and lower ends of the main frame (1) and fixed frame. The limit protection travel switches (8) are used to monitor whether the travel of the lifting platform (21) exceeds the preset position. The limit protection travel switches (8) are connected to the control equipment.

[0037] Preferably, the fixing plate (32) is a square plate-shaped component, and the four corners of the fixing plate (32) are provided with measuring ports that are compatible with the rangefinder (5);

[0038] The fixing plate (32) has symmetrical scraper cylinder mounting holes for mounting scraper cylinders at the middle of both ends; the fixing plate (32) also has a mounting part connected to the push rod of the drive cylinder (31), a connecting part connected to the guide rod (71), and several temperature sensor mounting holes for mounting temperature sensors (6).

[0039] Preferably, the cleaning component (4) includes:

[0040] The scraper (41) has several scraping holes through it;

[0041] Scraper cylinder (42) is symmetrically connected to the scraper cylinder mounting hole of the fixed plate (32);

[0042] The drive rods of the two scraper cylinders (42) are respectively connected to the corresponding ends of the scraper (41).

[0043] Preferably, the scraper (41) is an octagonal plate-shaped component, and a rubber scraper ring is connected inside the scraping hole of the scraper (41). Each rubber scraper ring is respectively sleeved on the outside of the corresponding temperature sensor (6). Both scraper cylinders (42) are connected to the control device.

[0044] Preferably, the total number of the rangefinders (5) is at least two, and the measuring end of each rangefinder (5) is located directly above the measuring port of the fixed plate (32). Each rangefinder (5) is connected to the control device.

[0045] Preferably, one end of the temperature sensor (6) is provided with a connector adapted to the temperature sensor mounting hole on the fixing plate (32), and the other end of the temperature sensor (6) is needle-shaped. Each temperature sensor (6) is connected to the control device.

[0046] The working principle is as follows: When the tobacco pack (9) is transported to the area directly below the temperature sensor (6) via the upstream conveying equipment, the rangefinder (5) detects the height of the tobacco leaves inside the tobacco pack (9). Subsequently, the control equipment issues a lifting command. After receiving the command, the drive motor (22) starts to rotate. The rotation of the drive motor (22) drives the reducer (23) to rotate. The reducer (23) drives the first transmission rod (25) and the second transmission rod (26) at both ends to move synchronously. Then, the first transmission rod (25) and the second transmission rod (26) drive the screw jacks (24) connected to them to rotate synchronously. Thus, each screw jack (24) drives the screw (27) connected to it to rotate synchronously. Then, the two screws (27) drive the screw connecting plates (28) connected to them to move downward synchronously. Thus, the two screw connecting plates (28) drive the screws connected to them to rotate downward synchronously. The lifting platform (21) connected to it moves towards the tobacco pack (9), eventually driving the various components connected to the lifting platform (21) to move downwards; then, according to the pre-programmed settings of the control equipment, when the lead screw (27) reaches the low position, at the same time, the drive cylinder (31) pushes out the push rod, which pushes out several temperature sensors (6) connected to the fixed plate (32) and the components on the fixed plate (32), so that the temperature sensors (6) are inserted into the center of the tobacco pack (9) to measure the temperature; after the temperature measurement is completed, the lifting platform (21) moves upwards, and at the same time, the push rod of the drive cylinder (31) drives the fixed plate (32) and several temperature sensors (6) connected to the fixed plate (32) to retract, and the drive rod of the scraper cylinder (42) pushes out the scraper (41) to scrape off the residual tobacco leaves attached to the temperature sensor (6), thus playing a cleaning role.

[0047] In summary, the beneficial effects of this utility model compared with the prior art are:

[0048] 1. This utility model not only improves the accuracy and stability of temperature measurement, but also greatly reduces maintenance costs and workload, improves production efficiency, and meets the strict requirements of the tobacco industry for temperature control in the vacuum rehumidification process.

[0049] 2. The lifting device of this utility model adopts a servo motor and screw drive, which can accurately control and adjust the lifting and lowering height of the lifting platform to meet the needs of precise positioning;

[0050] 3. The guide component (7) of this utility model can ensure that the lead screw drives the lifting platform to move along the predetermined running trajectory during the lifting process, thereby preventing deviation and shaking, improving the stability of the lifting platform, protecting key components such as the lead screw from damage, and ensuring that the lifting platform can accurately reach the target position.

[0051] 4. The limit protection travel switch set in this utility model can accurately detect the position of the lifting platform, ensuring that the lifting platform reaches the predetermined height during the lifting process, effectively preventing the lifting platform from exceeding the preset stop position due to inertia, thereby avoiding component damage and safety hazards;

[0052] 5. The limit switch of this utility model can cut off the power supply in time when the lifting platform reaches the limit position, preventing the motor from continuing to run and causing excessive wear or damage to mechanical parts;

[0053] 6. The cleaning component of this utility model can periodically or irregularly remove dust, residual tobacco leaves and other contaminants from the surface of the temperature sensor according to the specific settings, preventing these impurities from affecting the measurement accuracy of the sensor and extending the service life of the temperature sensor.

[0054] 7. The cleaning component of this utility model can keep the surface of the temperature sensor clean, ensuring that the temperature sensor is always in the best working condition, thereby improving the accuracy and reliability of its measurement.

[0055] 8. The rangefinder of this utility model can provide very accurate distance measurement, improve work efficiency, and ensure the accuracy of the distance of the temperature sensor (6) when it is removed from the cigarette pack.

[0056] 9. The self-cleaning core temperature detection device of this utility model can automatically trigger the cleaning scraper assembly to clean the sensor based on the sensor's usage cycle and condition, ensuring the cleanliness of the sensor surface without affecting the measurement accuracy. Attached Figure Description

[0057] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0058] Figure 1 This is one of the usage state diagrams of this utility model;

[0059] Figure 2 This is the second diagram showing the usage state of this utility model;

[0060] Figure 3 This is the third diagram showing the usage state of this utility model;

[0061] Figure 4 This is the fourth diagram showing the usage state of this utility model;

[0062] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0063] Figure 6 This is a front view of the present invention;

[0064] Figure 7 This is a partial structural schematic diagram of the present invention;

[0065] Figure 8 This is one of the schematic diagrams showing the partial structural connection relationship of this utility model;

[0066] Figure 9 This is the second schematic diagram of the partial structural connection relationship of this utility model;

[0067] In the diagram, the numbers are: 1—main frame, 11—upper fixed frame, 12—lower fixed frame, 13—guardrail;

[0068] 2—Lifting equipment, 21—Lifting platform, 22—Drive motor, 23—Reducer, 24—Screw jack, 25—First transmission rod, 26—Second transmission rod, 27—Screw, 28—Screw connecting plate, 29—Guide rod;

[0069] 3—Drive mechanism, 31—Drive cylinder, 32—Fixed plate;

[0070] 4—Cleaning component; 41—Scraper; 42—Scraper cylinder;

[0071] 5—Radarmeter;

[0072] 6—Temperature sensor;

[0073] 7—Guide assembly, 71—Guide rod, 72—Guide cylinder;

[0074] 8—Limit protection travel switch;

[0075] 9—Tobacco pack. Detailed Implementation

[0076] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0077] As per the instruction manual Figure 1 To the instruction manual Figure 9 The self-cleaning core temperature detection device shown includes a main frame 1 and a control device, and further includes:

[0078] Lifting device 2 is installed on the main frame 1, and a lifting platform 21 is connected to the lifting device 2 in a liftable manner.

[0079] The drive mechanism 3 includes a drive cylinder 31 and a fixed plate 32. One end of the drive cylinder 31 is connected to the upper surface of the lifting platform 21, and the push rod of the drive cylinder 31 passes through the lifting platform 21 and is connected to the upper end face of the fixed plate 32.

[0080] Cleaning component 4 is connected to the fixing plate 32;

[0081] The rangefinder 5 is connected to both sides of the middle part of the lifting platform 21.

[0082] Several temperature sensors 6 are connected to the lower end face of the fixed plate 32.

[0083] The lower part of the cleaning component 4 is sleeved on the outside of each temperature sensor 6.

[0084] In this utility model, the main frame 1 is used to support the entire testing device and ensure its stable operation. The main frame 1 has an overall gate-shaped structure. The main frame 1 includes a frame body and an upper fixed frame 11 symmetrically connected to the two ends above the frame body, and a lower fixed frame 12 symmetrically connected to both sides of the frame body. A protective railing 13 is also provided above the main frame 1. The bottom of the four legs of the main frame 1 is provided with a fixing plate, and a fixing component is connected to the fixing plate.

[0085] Furthermore, such as Figure 1 and Figure 9 As shown, it also includes a guide assembly 7 connected to the lifting platform 21. The guide assembly 7 includes:

[0086] Guide rod 71, one end of which is connected to the upper end face of the fixing plate 32, and the other end is sleeved inside the guide cylinder 72;

[0087] Guide cylinder 72 and guide cylinder 71 are connected to the lifting platform 21;

[0088] Among them, the guide rod 71 passes through the guide cylinder 71 and the lifting platform 21 in sequence and is connected to the fixed plate 32.

[0089] Furthermore, such as Figures 1 to 3 As shown, the lifting device 2 includes:

[0090] Drive motor 22 is connected to one side of the crossbeam above the main frame 1;

[0091] The reducer 23 is connected to the other side of the crossbeam above the main frame 1, and the reducer 23 is connected to the output shaft of the drive motor 22.

[0092] Screw jacks 24 are symmetrically arranged at the middle of both ends above the main frame 1.

[0093] The first transmission rod 25 has one end connected to one end of the reducer 23 and the other end connected to the corresponding end of the screw jack 24.

[0094] The second transmission rod 26 has one end connected to the other end of the reducer 23 and the other end connected to the corresponding end of the screw jack 24.

[0095] Lead screw 27, each lead screw 27 is connected to the lead screw jack 24 at the corresponding end;

[0096] A lead screw connecting plate 28 is connected to each lead screw 27;

[0097] The lifting platform 21 is connected between two lead screw connecting plates 28; the drive motor 22 is connected to the control equipment.

[0098] In this utility model, the lifting device 2 is responsible for moving the drive mechanism 3 to the target position in the vertical direction; the drive motor 22 is a servo motor; the upper end of the lead screw 27 is connected to the corresponding lead screw jack 24 for transmission, and the lower end of the lead screw 27 is rotatably connected to the fixed frame 12.

[0099] Specifically, such as Figure 3 As shown, it also includes guide rods 29 symmetrically sleeved on one side of both ends of the lifting platform 21. One end of the guide rod 29 is connected to the upper fixed frame 11 of the main frame 1, and the other end of the guide rod 29 is connected to the lower fixed frame 12 of the main frame 1.

[0100] Furthermore, such as Figure 3 and Figure 4 As shown, it also includes limit protection travel switches 8 installed at the upper and lower ends of the main frame 1 and the fixed frame. The limit protection travel switches 8 are used to monitor whether the travel of the lifting platform 21 exceeds the preset position. The limit protection travel switches 8 are connected to the control equipment.

[0101] Furthermore, such as Figure 8 and Figure 9 As shown, the fixing plate 32 is a square plate-shaped component, and the four corners of the fixing plate 32 are provided with measuring ports that are compatible with the rangefinder 5.

[0102] The fixing plate 32 has symmetrical scraper cylinder mounting holes at the middle of both ends for mounting scraper cylinders; the fixing plate 32 also has a mounting part connected to the push rod of the drive cylinder 31, a connecting part connected to the guide rod 71, and several temperature sensor mounting holes for mounting temperature sensor 6.

[0103] In this invention, the drive mechanism 3 is used to drive the temperature sensor 6 to be inserted into the cigarette pack 9 to an appropriate depth.

[0104] Furthermore, such as Figure 8 and Figure 9 As shown, the cleaning component 4 includes:

[0105] Scraper 41, with several scraping holes extending through it;

[0106] Scraper cylinder 42 is symmetrically connected to the scraper cylinder mounting holes of the fixed plate 32;

[0107] The drive rods of the two scraper cylinders 42 are respectively connected to the corresponding ends of the scraper 41.

[0108] In this invention, the cleaning component 4 includes at least one scraper 41 for removing residual tobacco leaves adhering to the temperature sensor 6; the drive rod of the scraper cylinder 42 pushes the scraper 41 out, and the rubber scraper rings in the scraping holes generate relative movement with the corresponding temperature sensors 6, thereby scraping off the residual tobacco leaves on the temperature sensors 6.

[0109] More specifically, such as Figure 8 and Figure 9 As shown, the scraper 41 is an octagonal plate-shaped component. Rubber scraper rings are connected inside the scraping holes of the scraper 41. Each rubber scraper ring is sleeved on the outside of the corresponding temperature sensor 6. Both scraper cylinders 42 are connected to the control device.

[0110] Furthermore, such as Figure 1 As shown, the total number of rangefinders 5 is at least two, and the measuring end of each rangefinder 5 is located directly above the measuring port of the fixed plate 32. Each rangefinder 5 is connected to the control device.

[0111] In this utility model, the rangefinder 5 is used to accurately measure the thickness of the cigarette pack 9 and determine the depth of sensor insertion; there are a total of two rangefinders 5, which are respectively obliquely arranged on both sides of the middle of the lifting platform 21.

[0112] Furthermore, such as Figure 1 and Figure 2 As shown, one end of the temperature sensor 6 is provided with a connector adapted to the temperature sensor mounting hole on the fixing plate 32, and the other end of the temperature sensor 6 is needle-shaped. Each temperature sensor 6 is connected to the control device.

[0113] In this invention, the temperature sensor 6 is used to measure the temperature inside the cigarette pack 9.

[0114] Meanwhile, the control equipment is an existing product that can be purchased on the market. This control equipment is used to monitor the operation of the device in real time, and the control equipment is a PLC, a PC, or a programmable logic controller.

[0115] In summary, a more specific embodiment of this utility model is as follows:

[0116] Before using the self-cleaning core temperature detection device with the above-mentioned design structure, it needs to be transported to the designated working position by appropriate handling equipment or directly by manual labor.

[0117] When in use, when the cigarette pack 9 is transported to the monitoring position directly below the temperature sensor 6 via the upstream conveying equipment, the control equipment first sends an operation command to the lifting equipment 2, and the lifting platform 21 on the lifting equipment 2 drives the drive mechanism 3 to move above the cigarette pack 9.

[0118] Then, the rangefinder 5 first measures the thickness of the cigarette pack 9 and transmits the data to the control device, and calculates the depth to which the temperature sensor 6 is inserted into the cigarette pack 9. Subsequently, the drive cylinder 31 drives the fixing plate 32 to move downward, and then the fixing plate 32 drives several temperature sensors 6 connected to it to be inserted into the inside of the cigarette pack 9 to measure the temperature.

[0119] Immediately after the temperature measurement of the tobacco pack 9 is completed, the cleaning component 4 starts to work. The scraper cylinder 42 pushes the scraper 41 to reciprocate on the outer surface of the temperature sensor 6 to scrape off the tobacco debris adhering to the temperature sensor 6. After cleaning is completed, the control device receives a signal that cleaning is complete.

[0120] Finally, the control device controls the lifting device 2 to reset the temperature sensor 6 and return the cleaning component 4 to its initial state, waiting for the next measurement.

[0121] In this invention, the control device has a built-in cleaning control logic, which can automatically trigger the cleaning component 4 to clean the temperature sensor 6 according to its usage and the preset cleaning cycle, so as to ensure that the surface of the temperature sensor 6 is always clean and does not affect the measurement accuracy.

[0122] In addition, the control equipment can compare the actual temperature data measured by the temperature sensor 6 with the preset effective temperature range. When abnormal data is detected, the alarm system will promptly notify the operator to ensure the stability of the production process and product quality.

[0123] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A self-cleaning core temperature detection device, comprising a main frame (1) and a control device, characterized in that, Also includes: Lifting device (2), the lifting device (2) is set on the main frame (1), and the lifting device (2) is connected to the lifting platform (21) in a lifting manner; The drive mechanism (3) includes a drive cylinder (31) and a fixed plate (32). One end of the drive cylinder (31) is connected to the upper surface of the lifting platform (21), and the push rod of the drive cylinder (31) passes through the lifting platform (21) and is connected to the upper surface of the fixed plate (32). Cleaning component (4) is attached to the fixing plate (32); The rangefinder (5) is connected to both sides of the middle part of the lifting platform (21); Several temperature sensors (6) are connected to the lower end face of the fixed plate (32); The lower part of the cleaning component (4) is fitted onto the outside of each temperature sensor (6).

2. The self-cleaning core temperature detection device according to claim 1, characterized in that, It also includes a guide assembly (7) connected to the lifting platform (21), the guide assembly (7) comprising: Guide rod (71), one end of guide rod (71) is connected to the upper end face of fixed plate (32), and the other end is sleeved in guide cylinder (72); Guide cylinder (72), guide cylinder (71) is connected to the lifting platform (21); Among them, the guide rod (71) passes through the guide cylinder (71) and the lifting platform (21) in sequence and connects to the fixed plate (32).

3. The self-cleaning core temperature detection device according to claim 1, characterized in that, The lifting device (2) includes: Drive motor (22) is connected to one side of the crossbeam above the main frame (1); The reducer (23) is connected to the other side of the crossbeam above the main frame (1), and the reducer (23) is connected to the output shaft of the drive motor (22) for transmission. Screw jacks (24) are symmetrically arranged at the middle of both ends above the main frame (1); The first transmission rod (25) has one end connected to one end of the reducer (23) and the other end connected to the corresponding screw jack (24). The second transmission rod (26) has one end connected to the other end of the reducer (23) and the other end connected to the corresponding screw jack (24). Screw (27), screw (27) is connected to screw jack (24) at the corresponding end; Screw connecting plate (28), screw connecting plate (28) is connected to each screw (27); The lifting platform (21) is connected between two lead screw connecting plates (28); the drive motor (22) is connected to the control equipment.

4. The self-cleaning core temperature detection device according to claim 3, characterized in that, It also includes guide rods (29) symmetrically sleeved on one side of both ends of the lifting platform (21). One end of the guide rod (29) is connected to the upper fixed frame (11) of the main frame (1), and the other end of the guide rod (29) is connected to the lower fixed frame (12) of the main frame (1).

5. A self-cleaning core temperature detection device according to claim 1 or 3, characterized in that, It also includes limit protection travel switches (8) installed at the upper and lower ends of the main frame (1) and fixed frame. The limit protection travel switches (8) are used to monitor whether the travel of the lifting platform (21) exceeds the preset position. The limit protection travel switches (8) are connected to the control equipment.

6. The self-cleaning core temperature detection device according to claim 1, characterized in that, The fixing plate (32) is a square plate-shaped component, and the four corners of the fixing plate (32) are provided with measuring ports that are compatible with the rangefinder (5); The fixing plate (32) has symmetrical scraper cylinder mounting holes for mounting scraper cylinders at the middle of both ends; the fixing plate (32) also has a mounting part connected to the push rod of the drive cylinder (31), a connecting part connected to the guide rod (71), and several temperature sensor mounting holes for mounting temperature sensors (6).

7. The self-cleaning core temperature detection device according to claim 1, characterized in that, The cleaning component (4) includes: The scraper (41) has several scraping holes through it; Scraper cylinder (42) is symmetrically connected to the scraper cylinder mounting hole of the fixed plate (32); The drive rods of the two scraper cylinders (42) are respectively connected to the corresponding ends of the scraper (41).

8. The self-cleaning core temperature detection device according to claim 7, characterized in that, The scraper (41) is an octagonal plate-shaped component. A rubber scraper ring is connected inside the scraping hole of the scraper (41). Each rubber scraper ring is sleeved on the outside of the corresponding temperature sensor (6). Both scraper cylinders (42) are connected to the control device.

9. The self-cleaning core temperature detection device according to claim 1, characterized in that, The total number of the rangefinders (5) is at least two, and the measuring end of each rangefinder (5) is located directly above the measuring port of the fixed plate (32). Each rangefinder (5) is connected to the control device.

10. The self-cleaning core temperature detection device according to claim 1, characterized in that, One end of the temperature sensor (6) is provided with a connector that is adapted to the temperature sensor mounting hole on the fixing plate (32), and the other end of the temperature sensor (6) is needle-shaped. Each temperature sensor (6) is connected to the control device.

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