Thermal insulation performance testing method of thermal insulation water bottle

Abstract

The invention discloses a thermal insulation performance testing method of a thermal insulation water bottle. The thermal insulation performance testing method of the thermal insulation water bottle comprises the following steps: S1, feeding a to-be-tested thermal insulation water bottle to automatic temperature measuring equipment; s2, the automatic temperature measuring equipment conveys the to-be-tested heat preservation water bottle, and in the process, the automatic temperature measuring equipment carries out heating treatment on the interior of the to-be-tested heat preservation water bottle; s3, after the temperature of the to-be-tested heat preservation water bottle is raised to a preset temperature, the automatic temperature measuring equipment detects the temperature of the outer wall of the heat preservation water bottle; s4, qualified products passing the test are conveyed and subjected to heat dissipation through automatic temperature measuring equipment; s5, after heat dissipation of qualified products is completed, the qualified heat preservation water bottles are discharged through automatic temperature measuring equipment; the automatic temperature measuring equipment comprises a conveying mechanism, a heating mechanism, a temperature measuring mechanism, a heat dissipation mechanism and a discharging mechanism. According to the thermal insulation performance testing method, the interior of the thermal insulation water bottle is heated through the heating mechanism, and then the temperature of the outer wall of the thermal insulation water bottle is detected through the temperature measuring mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of thermos bottle performance testing, and in particular to a method for testing the thermal insulation performance of a thermos bottle. Background Art

[0002] The insulation performance test of a thermos bottle is a test process used to evaluate the ability of the bottle to maintain the temperature of the liquid for a certain period of time. This type of test is designed to verify whether the bottle can effectively maintain the temperature of the liquid for a certain period of time to ensure that it meets the design requirements of the insulation product and the expectations of consumers. In the existing test methods for the insulation performance of thermos bottles, the vacuum degree of the thermos bottle is often calculated by the temperature difference between the inside and outside, and its insulation performance is tested accordingly. This method is based on the principle of heat conduction. The reason why the thermos bottle can maintain temperature is that there is a vacuum layer between its inner and outer walls, which effectively reduces the loss of heat through conduction and convection. By measuring the temperature difference between the inside and outside of the bottle and combining it with the heat transfer formula, the vacuum degree of the thermos bottle can be estimated, thereby evaluating its insulation performance. The main function of the vacuum layer is to prevent heat conduction. In theory, a vacuum cannot transfer heat. However, due to technical and manufacturing reasons, there may be tiny gas molecules in the vacuum layer of the thermos bottle, which will cause a small amount of heat transfer. By measuring the temperature difference between the inside and outside of the thermos bottle, the conduction rate of heat through the vacuum layer can be estimated, and then the insulation effect of the vacuum layer can be calculated. If the temperature difference is large, it means that the vacuum layer has a good insulation effect; conversely, if the temperature difference is small, it means that there may be problems with the vacuum layer, resulting in increased heat transfer.

[0003] At present, the above test method generally measures the vacuum degree of the thermos bottle indirectly by heating the inner cavity of the thermos bottle and monitoring the temperature of the outer wall of the thermos bottle. This work is generally done by manually turning the thermos bottle upside down on a temperature measuring table, and injecting 350°C hot air into the inner cavity of the thermos bottle for 35 seconds through a heating device, and then touching the outer wall of the thermos bottle by hand to judge whether the thermal insulation performance of the thermos bottle is qualified by the sense of touch. However, the above test method has a large number of subjective factors, the test results are not accurate, the efficiency of manual loading and unloading is low, the labor intensity is high, and the heat dissipation of the heated thermos bottle needs to be dissipated through an external heat dissipation device before the next process can be carried out, resulting in insufficient production efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a method for testing the thermal insulation performance of a thermos bottle to address the technical problems of low testing accuracy and efficiency of the existing method for testing the thermal insulation performance of a thermos bottle.

[0005] A method for testing the thermal insulation performance of a thermos bottle, comprising the following steps: S1. Load the thermos bottle to be tested into the automatic temperature measuring device; S2. The automatic temperature measuring device transports the thermos bottle to be tested. During this process, the automatic temperature measuring device heats up the inside of the thermos bottle to be tested. S3. After the thermos bottle to be tested is heated to the preset temperature, the automatic temperature measuring device detects the outer wall temperature of the thermos bottle; when the outer wall temperature value is within the qualified temperature range, the automatic temperature measuring device performs subsequent actions on qualified products; when the outer wall temperature value exceeds the qualified temperature range, the automatic temperature measuring device suspends operation, and the station where unqualified products are detected issues an alarm. After the defective products are removed, the automatic temperature measuring device starts again for subsequent actions; S4. The qualified products after the test are transported and cooled through the automatic temperature measuring equipment; S5. After the qualified products have completed heat dissipation, the qualified thermos bottles are unloaded through the automatic temperature measuring equipment.

[0006] In one embodiment, the automatic temperature measuring device includes a conveying mechanism, a heating mechanism, a temperature measuring mechanism, a heat dissipation mechanism and a feeding mechanism, wherein the output end of the conveying mechanism is connected to the input end of the feeding mechanism; the heating mechanism and the heat dissipation mechanism are arranged on one side of the conveying mechanism, and the heating mechanism and the heat dissipation mechanism are arranged in sequence along the conveying direction of the thermos bottle in the conveying mechanism; the temperature measuring mechanism is arranged on the other side of the conveying mechanism corresponding to the heating mechanism.

[0007] In one embodiment, the above-mentioned step S1 includes the following steps: the thermos bottles to be tested can be loaded one by one or in batches to the input end of the conveying mechanism, wherein the open end of the thermos bottle is arranged toward the heating mechanism, and the bottom end of the thermos bottle is arranged toward the temperature measuring mechanism.

[0008] In one embodiment, the above-mentioned heating mechanism includes a lifting unit, a horizontal moving unit and a plurality of heating units. The lifting unit is arranged on one side of the conveying mechanism, the horizontal moving unit is connected to the output end of the lifting unit, and the plurality of heating units cooperate with the conveying mechanism to be connected to the output end of the horizontal moving unit.

[0009] In one embodiment, the temperature measuring mechanism includes a plurality of infrared temperature sensors, which are arranged on the other side of the conveying mechanism relative to the plurality of heating units, and the plurality of infrared temperature sensors are respectively arranged corresponding to the thermos bottles in the plurality of heating stations.

[0010] In one embodiment, the above-mentioned step S2 includes the following steps: the thermos bottles to be tested are transported to the heating mechanism in sequence. At this time, the lifting unit cooperates with the horizontal moving unit to drive several heating units to move to corresponding workstations. Several thermos bottles correspond to several heating units one by one, so that each heating unit heats the thermos bottle from the inside of the corresponding thermos bottle for 35 seconds until its internal temperature rises to 350°C.

[0011] In one of the embodiments, the above-mentioned step S3 includes the following steps: after the inside of the thermos bottle is heated to a preset temperature value, a number of infrared temperature sensors respectively detect the temperature of the corresponding outer wall of the thermos bottle for analysis and judgment by the control system; when the outer wall temperature value is within the qualified temperature range, the automatic temperature measuring device performs subsequent actions on qualified products; when the outer wall temperature value exceeds the qualified temperature range, the automatic temperature measuring device suspends operation, and the workstation where unqualified products are detected issues an alarm, and after the defective products are taken out, the automatic temperature measuring device is started again for subsequent actions.

[0012] In one embodiment, the heat dissipation mechanism includes a plurality of heat dissipation units, which are arranged on adjacent sides of the plurality of heating units, and the plurality of heat dissipation units cooperate with the conveying mechanism to be connected to the output end of the horizontal moving unit, so that the plurality of heat dissipation units can move synchronously with the plurality of heating units.

[0013] In one embodiment, the above-mentioned step S4 includes the following steps: several thermos bottles that have completed temperature detection are conveyed to the heat dissipation mechanism through a conveying mechanism. At this time, as several heating units move toward several subsequent thermos bottles, several heat dissipation units are moved to the inside of several thermos bottles under the coordinated drive of the lifting unit and the horizontal moving unit. Each heat dissipation unit cools down the corresponding thermos bottle until the preset temperature is reached, and then the thermos bottle is conveyed to the unloading mechanism.

[0014] In one embodiment, the unloading mechanism is configured as a conveyor belt, the input end of the conveyor belt is connected to the output end of the conveyor mechanism, and the output end of the conveyor belt extends a preset distance away from the conveyor mechanism.

[0015] In one embodiment, the above step S5 includes the following steps: the thermos water bottle after testing and heat dissipation can be transported to an external material receiving mechanism through a conveyor belt, thereby completing the unloading work of the thermos water bottle.

[0016] In one embodiment, the heating unit comprises a heating gun rear cover, a first low-voltage brushless ducted fan, a first fan positioning sleeve, a thermocouple, a first fan mounting seat, a thermal insulation pad, a ceramic heating core, a thermal insulation sleeve and a heating gun housing, wherein the heating gun rear cover, the first fan mounting seat and the heating gun housing are connected in sequence; the first fan positioning sleeve is sleeved on the side surface of one end of the first low-voltage brushless ducted fan and is accommodated together inside the heating gun rear cover; the other end of the first low-voltage brushless ducted fan is connected to the first fan mounting seat; one end of the thermocouple is accommodated in the fan mounting seat, and the other end thereof extends to the inside of the heating gun housing; the thermal insulation pad is arranged at the connection between the first fan mounting seat and the heating gun housing; the ceramic heating core is accommodated in the back of the heating gun housing, and the ceramic heating core is arranged on the adjacent side of the thermocouple; the thermal insulation sleeve is nested inside the heating gun housing, and the thermal insulation sleeve is sleeved on the outside of the thermocouple and the ceramic heating core.

[0017] In one embodiment, the above-mentioned heat dissipation unit includes a heat sink gun rear cover, a second low-voltage brushless ducted fan, a second fan mounting base and a heat sink gun housing, wherein the heating rear cover, the second fan mounting base and the heat sink gun housing are connected in sequence; the second low-voltage brushless ducted fan is accommodated inside the heat sink gun rear cover, and the second low-voltage brushless ducted fan is arranged toward the output end of the heat sink gun housing.

[0018] The above-mentioned thermal insulation performance testing method of the thermos bottle first heats the inside of the thermos bottle by a heating mechanism, and then detects the temperature of the outer wall of the thermos bottle by a temperature measuring mechanism, and calculates the temperature rise of the thermos bottle according to the detection data on the inside and outside of the thermos bottle to indirectly measure the vacuum degree of the side wall of the thermos cup, and then judges the thermal insulation performance of the thermos bottle. Based on this, the thermal insulation performance testing method of the present invention can effectively avoid traditional manual tactile testing, thereby solving the test errors caused by subjective factors of testers in traditional manual testing methods; at the same time, through the integrated setting of automatic temperature measuring equipment, the testing method integrating heating, temperature measurement and heat dissipation greatly improves the testing efficiency and reduces the labor cost; in addition, with the cooperation of the conveying mechanism, the test processes such as automatic conveying, automatic temperature measurement, automatic heat dissipation and automatic unloading of the thermos bottle can be realized, thereby solving the problems of low efficiency and high labor intensity of manual unloading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a method for testing the heat preservation performance of a thermos bottle in one embodiment; Figure 2 It is a schematic diagram of an exploded structure of a method for testing the heat preservation performance of a thermos bottle in one embodiment; Figure 3 A schematic diagram of the heating unit structure of a method for testing the heat preservation performance of a thermos bottle in one embodiment; Figure 4 for Figure 3 A schematic cross-sectional structure diagram of the AA portion in the illustrated embodiment; Figure 5 A schematic diagram of the heat dissipation unit structure of a method for testing the heat preservation performance of a thermos bottle in one embodiment; Figure 6 for Figure 5 A schematic cross-sectional structure diagram of the BB portion in the illustrated embodiment. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0026] The present invention discloses a method for testing the thermal insulation performance of a thermos bottle, and the method comprises the following steps: S1, loading the thermos bottle to be tested into the automatic temperature measuring device 10; S2, the automatic temperature measuring device 10 transports the thermos bottle to be tested, during which the automatic temperature measuring device 10 heats up the inside of the thermos bottle to be tested; S3. After the thermos bottle to be tested is heated to a preset temperature, the automatic temperature measuring device 10 detects the outer wall temperature of the thermos bottle; when the outer wall temperature value is within the qualified temperature range, the automatic temperature measuring device 10 performs subsequent actions on qualified products; when the outer wall temperature value exceeds the qualified temperature range, the automatic temperature measuring device 10 suspends operation, and the station where unqualified products are detected issues an alarm, and after the defective products are removed, the automatic temperature measuring device 10 starts again to perform subsequent actions; S4, the qualified products after the test are transported and cooled through the automatic temperature measuring device 10; S5. After the qualified products have completed heat dissipation, the qualified thermos bottles are unloaded through the automatic temperature measuring device 10.

[0027] In one embodiment, see Figures 1 to 6The above-mentioned automatic temperature measuring device 10 includes a conveying mechanism 100, a heating mechanism 200, a temperature measuring mechanism 300, a heat dissipation mechanism 400 and a feeding mechanism 500. The output end of the conveying mechanism 100 is connected to the input end of the feeding mechanism 500, so that the conveying mechanism 100 combines with the feeding mechanism 500 to realize the conveying function of the thermos bottle in the performance test process; the heating mechanism 200 and the heat dissipation mechanism 400 are arranged on one side of the conveying mechanism 100, and the heating mechanism 200 and the heat dissipation mechanism 400 are arranged in sequence along the conveying direction of the thermos bottle in the conveying mechanism 100, so that the heating mechanism 200 first heats the thermos bottle, and after completing the outer wall temperature measurement, the heat dissipation mechanism 400 dissipates the heat of the thermos bottle; the temperature measuring mechanism 300 is arranged on the other side of the conveying mechanism 100 corresponding to the heating mechanism 200, so that after the heating mechanism 200 heats the thermos bottle, the temperature measuring mechanism 300 can detect the outer wall temperature of the thermos bottle. Compared with the traditional thermal insulation performance test, in the test method of the present invention, the inside of the thermos bottle is first heated and heated by the heating mechanism 200, and then the outer wall temperature of the thermos bottle is detected by the temperature measuring mechanism 300, and the temperature rise of the thermos bottle is calculated according to the detection data of the inner and outer sides of the thermos bottle to indirectly measure the vacuum degree of the side wall of the thermos cup, and then the thermal insulation performance of the thermos bottle is judged. Based on this, the thermal insulation performance test method of the present invention can effectively avoid the traditional manual tactile test, thereby solving the test error caused by the subjective factors of the tester in the traditional manual test method; at the same time, through the integrated setting of the automatic temperature measuring equipment 10, the test method integrating heating, temperature measurement and heat dissipation greatly improves the test efficiency and reduces the labor cost; in addition, with the cooperation of the conveying mechanism 100, the test processes such as automatic conveying, automatic temperature measurement, automatic heat dissipation and automatic unloading of the thermos bottle can be realized, thereby solving the problems of low efficiency and high labor intensity of manual unloading and unloading.

[0028] Specifically, the above-mentioned step S1 includes the following steps: the thermos bottles to be tested can be loaded one by one or in batches to the input end of the conveying mechanism 100, wherein the open end of the thermos bottle is arranged toward the heating mechanism 200, and the bottom end of the thermos bottle is arranged toward the temperature measuring mechanism 300, so that the heating mechanism 200 heats the inside of the thermos bottle, and at the same time, the temperature measuring mechanism 300 measures the outer wall temperature of the thermos bottle from the bottom of the thermos bottle, based on which it is judged whether the thermal insulation performance of the thermos bottle is qualified.

[0029] Furthermore, the heating mechanism 200 includes a lifting unit 210, a horizontal moving unit 220 and a plurality of heating units 230. The lifting unit 210 is arranged on one side of the conveying mechanism 100, the horizontal moving unit 220 is connected to the output end of the lifting unit 210, and the plurality of heating units 230 are connected to the output end of the horizontal moving unit 220 in cooperation with the conveying mechanism 100. Thus, the lifting unit 210 cooperates with the horizontal moving unit 220 to adjust the relative position between the heating unit 230 and the thermos bottle to be tested, so that the heating unit 230 can extend into the corresponding thermos bottle for heating.

[0030] Furthermore, the temperature measuring mechanism 300 includes a plurality of infrared temperature sensors 310, which are arranged on the other side of the conveying mechanism 100 relative to the plurality of heating units 230, and the plurality of infrared temperature sensors 310 are respectively arranged corresponding to the thermos bottles in the plurality of heating stations, so that each infrared temperature sensor 310 can detect the outer wall temperature of the corresponding thermos bottle.

[0031] Specifically, the above-mentioned step S2 includes the following steps: the thermos bottles to be tested are transported to the heating mechanism 200 in sequence. At this time, the lifting unit 210 cooperates with the horizontal moving unit 220 to drive the plurality of heating units 230 to move to the corresponding workstations. The plurality of thermos bottles correspond one to one with the plurality of heating units 230, respectively. Thus, each heating unit 230 heats the corresponding thermos bottle for 35 seconds until the internal temperature rises to 350°C.

[0032] Specifically, the above-mentioned step S3 includes the following steps: after the inside of the thermos bottle is heated to a preset temperature value, a number of infrared temperature sensors 310 respectively detect the temperature of the corresponding outer wall of the thermos bottle for analysis and judgment by the control system; when the outer wall temperature value is within the qualified temperature range, the automatic temperature measuring device 10 performs subsequent actions on qualified products; when the outer wall temperature value exceeds the qualified temperature range, the automatic temperature measuring device 10 suspends operation, and the workstation where unqualified products are detected issues an alarm, and after the defective products are taken out, the automatic temperature measuring device 10 starts again to perform subsequent actions.

[0033] Furthermore, the heat dissipation mechanism 400 includes a plurality of heat dissipation units 410, and the plurality of heat dissipation units 410 are arranged on adjacent sides of the plurality of heating units 230, and the plurality of heat dissipation units 410 cooperate with the conveying mechanism 100 to be connected to the output end of the horizontal moving unit 220, so that the plurality of heat dissipation units 410 can move synchronously with the plurality of heating units 230, so that the plurality of conveying mechanisms 100 can timely dissipate heat for the plurality of thermos bottles that have completed the temperature rise detection.

[0034] Specifically, the above-mentioned step S4 includes the following steps: several thermos bottles that have completed temperature detection are conveyed to the heat dissipation mechanism 400 through the conveying mechanism 100. At this time, as the several heating units 230 move toward the subsequent several thermos bottles, the several heat dissipation units 410 are moved to the inside of the several thermos bottles under the coordinated drive of the lifting unit 210 and the horizontal moving unit 220. Each heat dissipation unit 410 cools down the corresponding thermos bottle until the preset temperature is reached, and then the thermos bottle is conveyed to the unloading mechanism 500.

[0035] In one embodiment, the unloading mechanism 500 is configured as a conveyor belt, the input end of the conveyor belt is connected to the output end of the conveyor mechanism 100, and the output end of the conveyor belt extends a preset distance away from the conveyor mechanism 100. Specifically, the above step S5 includes the following steps: the thermos bottle after testing and heat dissipation can be transported to an external receiving mechanism through the conveyor belt, thereby completing the unloading work of the thermos bottle.

[0036] Furthermore, the heating unit 230 includes a heating gun rear cover 231, a first low-voltage brushless ducted fan 232, a first fan positioning sleeve 233, a thermocouple 234, a first fan mounting seat 235, a heat insulation pad 236, a ceramic heating core 237, a heat insulation sleeve 238 and a heating gun housing 239, wherein the heating gun rear cover 231, the first fan mounting seat 235 and the heating gun housing 239 are connected in sequence; the first fan positioning sleeve 233 is sleeved on the side surface of one end of the first low-voltage brushless ducted fan 232 and is accommodated in the interior of the heating gun rear cover 231; the first low-voltage brushless ducted fan 232 is provided with a first fan positioning sleeve 233, and the first fan positioning sleeve 23 ... The other end of the duct fan 232 is connected to the first fan mounting seat 235; one end of the thermocouple 234 is accommodated in the fan mounting seat, and the other end thereof extends to the inside of the heating gun housing 239; the thermal insulation pad 236 is arranged at the connection between the first fan mounting seat 235 and the heating gun housing 239; the ceramic heating core 237 is accommodated in the back of the heating gun housing 239, and the ceramic heating core 237 is arranged on the adjacent side of the thermocouple 234; the thermal insulation sleeve 238 is nested in the heating gun housing 239, and the thermal insulation sleeve 238 is arranged on the outside of the thermocouple 234 and the ceramic heating core 237. In practical applications, the thermocouple 234 can convert electrical energy into thermal energy, and in combination with the ceramic heating core 237, extend the heat energy transfer to the thermal insulation sleeve 238, and the first low-pressure brushless duct fan 232 arranged on the rear cover 231 of the heating gun can generate an airflow to blow toward the output end of the heating gun housing 239; during the airflow process, the air is heated by the thermocouple 234 and the ceramic heating core 237 to form a hot airflow that is blown out from the output end of the heating gun housing 239, so as to quickly heat the inside of the thermos cup during operation.

[0037] Furthermore, the heat dissipation unit 410 includes a heat dissipation gun rear cover 411, a second low-pressure brushless ducted fan 412, a second fan mounting seat 413 and a heat dissipation gun housing 414, wherein the heating rear cover, the second fan mounting seat 413 and the heat dissipation gun housing 414 are connected in sequence; the second low-pressure brushless ducted fan 412 is accommodated inside the heat dissipation gun rear cover 411, and the second low-pressure brushless ducted fan 412 is arranged toward the output end of the heat dissipation gun housing 414. In actual application, the second low-pressure brushless ducted fan 412 can generate a heat dissipation airflow to blow toward the output end of the heat dissipation gun housing 414, so as to quickly cool the inside of the thermos cup after the test during the working process.

[0038] To sum up, the thermal insulation performance testing method of the thermos bottle disclosed in the present invention first heats the inside of the thermos bottle by a heating mechanism, and then detects the temperature of the outer wall of the thermos bottle by a temperature measuring mechanism, and calculates the temperature rise of the thermos bottle according to the detection data on the inside and outside of the thermos bottle to indirectly measure the vacuum degree of the side wall of the thermos bottle, and then judges the thermal insulation performance of the thermos bottle. Based on this, the thermal insulation performance testing method of the present invention can effectively avoid traditional manual tactile testing, thereby solving the test errors caused by subjective factors of testers in traditional manual testing methods; at the same time, through the integrated setting of automatic temperature measuring equipment, the testing method integrating heating, temperature measurement and heat dissipation greatly improves the testing efficiency and reduces the labor cost; in addition, with the cooperation of the conveying mechanism, the test processes such as automatic conveying, automatic temperature measurement, automatic heat dissipation and automatic unloading of the thermos bottle can be realized, thereby solving the problems of low efficiency and high labor intensity of manual loading and unloading.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for testing the thermal insulation performance of a thermos bottle, characterized in that: Includes the following steps: S1. Load the thermos bottle to be tested into the automatic temperature measuring device; S2, the automatic temperature measuring device transports the thermos bottle to be tested, and during this process, the automatic temperature measuring device heats up the inside of the thermos bottle to be tested; S3. After the thermos bottle to be tested is heated to a preset temperature, the automatic temperature measuring device detects the outer wall temperature of the thermos bottle; when the outer wall temperature value is within the qualified temperature range, the automatic temperature measuring device performs subsequent actions on qualified products; when the outer wall temperature value exceeds the qualified temperature range, the automatic temperature measuring device suspends operation, and the station where unqualified products are detected issues an alarm, and after the defective products are removed, the automatic temperature measuring device is restarted to perform subsequent actions; S4. The qualified products after the test are transported and cooled through the automatic temperature measuring equipment; S5. After the qualified products have finished cooling, the qualified thermos bottles are unloaded through the automatic temperature measuring device; The automatic temperature measuring device includes a conveying mechanism, a heating mechanism, a temperature measuring mechanism, a heat dissipation mechanism and a feeding mechanism. The output end of the conveying mechanism is connected to the input end of the feeding mechanism. The heating mechanism and the heat dissipation mechanism are arranged on one side of the conveying mechanism, and the heating mechanism and the heat dissipation mechanism are arranged in sequence along the conveying direction of the thermos bottle in the conveying mechanism. The temperature measuring mechanism is arranged on the other side of the conveying mechanism corresponding to the heating mechanism.

2. The method for testing the heat preservation performance of a thermos bottle according to claim 1, characterized in that: The step S1 comprises the following steps: the thermos bottles to be tested can be loaded one by one or in batches to the input end of the conveying mechanism, wherein the open end of the thermos bottle is arranged toward the heating mechanism, and the bottom end of the thermos bottle is arranged toward the temperature measuring mechanism.

3. The method for testing the heat preservation performance of a thermos bottle according to claim 2, characterized in that: The temperature increasing mechanism comprises a lifting unit, a horizontal moving unit and a plurality of heating units. The lifting unit is arranged on one side of the conveying mechanism, the horizontal moving unit is connected to the output end of the lifting unit, and the plurality of heating units cooperate with the conveying mechanism to be connected to the output end of the horizontal moving unit.

4. The method for testing the heat preservation performance of a thermos bottle according to claim 3, characterized in that: The temperature measuring mechanism includes a plurality of infrared temperature sensors, which are arranged on the other side of the conveying mechanism relative to the plurality of heating units, and the plurality of infrared temperature sensors are respectively arranged corresponding to the thermos bottles in the plurality of heating stations.

5. The method for testing the heat preservation performance of a thermos bottle according to claim 4, characterized in that: The step S2 includes the following steps: the thermos bottles to be tested are transported to the heating mechanism in sequence, and at this time, the lifting unit cooperates with the horizontal moving unit to drive the plurality of heating units to move to corresponding workstations, and the plurality of thermos bottles correspond to the plurality of heating units one by one, so that each heating unit heats the corresponding thermos bottle for 35 seconds until the internal temperature rises to 350°C.

6. The method for testing the heat preservation performance of a thermos bottle according to claim 5, characterized in that: The step S3 comprises the following steps: after the inside of the thermos bottle is heated to a preset temperature value, a number of the infrared temperature sensors respectively detect the temperature of the corresponding outer wall of the thermos bottle for analysis and judgment by the control system; when the outer wall temperature value is within the qualified temperature range, the automatic temperature measuring device performs subsequent actions on qualified products; when the outer wall temperature value exceeds the qualified temperature range, the automatic temperature measuring device suspends operation, and the workstation where unqualified products are detected issues an alarm, and after the defective products are taken out, the automatic temperature measuring device is started again for subsequent actions.

7. The method for testing the heat preservation performance of a thermos bottle according to claim 6, characterized in that: The heat dissipation mechanism includes a plurality of heat dissipation units, which are arranged on adjacent sides of the plurality of heating units, and the plurality of heat dissipation units cooperate with the conveying mechanism to be connected to the output end of the horizontal moving unit, so that the plurality of heat dissipation units can move synchronously with the plurality of heating units.

8. The method for testing the heat preservation performance of a thermos bottle according to claim 7, characterized in that: The step S4 includes the following steps: several thermos bottles that have completed temperature detection are conveyed to the heat dissipation mechanism through the conveying mechanism. At this time, as the several heating units move toward the subsequent several thermos bottles, the several heat dissipation units are moved to the inside of the several thermos bottles under the coordinated drive of the lifting unit and the horizontal moving unit. Each heat dissipation unit cools down the corresponding thermos bottle until the preset temperature is reached, and then the thermos bottle is conveyed to the unloading mechanism.

9. The method for testing the heat preservation performance of a thermos bottle according to claim 8, characterized in that: The unloading mechanism is configured as a conveyor belt, the input end of the conveyor belt is connected to the output end of the conveyor mechanism, and the output end of the conveyor belt extends a preset distance away from the conveyor mechanism.

10. The method for testing the heat preservation performance of a thermos bottle according to claim 9, characterized in that: The step S5 includes the following steps: the thermos water bottle after testing and heat dissipation can be transported to the external material receiving mechanism through the conveyor belt, thereby completing the unloading work of the thermos water bottle.

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