阅读说明：本技术 一种不锈钢真空器皿热辐射检测性能检测装置及检测方法 (Detection device and detection method for thermal radiation detection performance of stainless steel vacuum vessel ) 是由 吴存君 唐小辉 于 2021-09-06 设计创作，主要内容包括：一种不锈钢真空器皿热辐射检测性能检测装置及检测方法,属于不锈钢真空器皿检测装置。复检装置和加热装置间隔设置,转运机械手设置在加热装置的一侧,并将待检测的器皿转运至加热装置上,剔除机械手设置在加热装置和复检装置之间,加热装置的顶部设置有若干上凸的加热部,温度检测装置设置在加热装置的正上方。本检测装置大大降低了能耗,检测速度快,且检测更加准确,剔除装置能够将不合格的待检测器皿剔除,并转运至复检装置上再次检测,保证了检测的准确性；本检测方法消除了环境温度的干扰,进一步保证了检测的准确性,复检装置能够判断漏气位置,以方便对不合格的待检测器皿进行修复,解决了目前不合格品只能作废处理的问题。(A detection device and a detection method for thermal radiation detection performance of a stainless steel vacuum vessel belong to detection devices for stainless steel vacuum vessels. Rechecking device and heating device interval set up, transport the manipulator setting in one side of heating device to wait that the household utensils that detect are transported to heating device on, reject the manipulator setting between heating device and rechecking device, heating device's top is provided with the heating portion of a plurality of epirelief, temperature-detecting device sets up directly over heating device. The detection device greatly reduces energy consumption, has high detection speed and more accurate detection, and the rejecting device can reject unqualified vessels to be detected and convey the vessels to the rechecking device for rechecking, thereby ensuring the detection accuracy; the detection method eliminates the interference of the environmental temperature, further ensures the detection accuracy, and the rechecking device can judge the gas leakage position so as to conveniently repair unqualified vessels to be detected and solve the problem that the existing unqualified products can only be treated by waste.)

1. The utility model provides a stainless steel vacuum vessel thermal radiation detection performance detection device which characterized in that: including transporting manipulator, heating device, temperature-detecting device, rejecting manipulator and reinspection device, reinspection device and heating device interval set up, transport the manipulator setting in one side of heating device to wait that the household utensils that treat are transported to heating device on, reject the manipulator setting between heating device and reinspection device, heating device's top is provided with the heating portion of a plurality of epirelief, temperature-detecting device sets up directly over heating device.

2. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 1, wherein: the heating device comprises a detection table (13) and a detection heating rod (14), wherein the detection heating rod (14) is arranged at the top of the detection table (13), and the heating part is formed at the top of the detection table (13).

3. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 2, wherein: the detection heating rod (13) comprises an infrared lamp tube and a mesh enclosure covering the outside of the infrared lamp tube.

4. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 1, wherein: the temperature detection device comprises a detection rotating motor (10), a detection swing arm (11) and a thermal imager (12), wherein the detection rotating motor (10) is connected with the detection swing arm (11) and drives the detection swing arm to rotate around the central line of a heating device, the thermal imager (12) is slidably mounted on the detection swing arm (11), and the thermal imager (12) is connected with a pushing cylinder or a pushing electric cylinder for pushing the thermal imager to move.

5. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 1, wherein: the removing device comprises a swinging device, a translation device, a lifting device and a sucker (8), wherein the translation device is installed on the swinging device and swings between the heating device and the rechecking device along with the swinging device, the lifting device is installed on the translation device, and the sucker (8) is installed on the lifting device.

6. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 5, wherein: the swing device comprises a rejecting swing arm (16) and a rejecting swing motor, the rejecting swing motor is arranged between the rechecking device and the heating device, and the rejecting swing arm (16) is connected with an output shaft of the rejecting swing motor and swings along with the rejecting swing motor.

7. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 5, wherein: the translation device comprises a translation frame (17) and a translation electric cylinder, wherein the translation frame (17) is slidably arranged on the swinging device, and the translation electric cylinder is connected with the translation frame (17) and pushes the translation frame to translate.

8. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 1, wherein: the storage device is arranged between a conveying chain (1) used for conveying the vessel to be detected and the transferring manipulator, and the storage device is connected with the output end of the conveying chain (1).

9. The apparatus for detecting thermal radiation detection performance of a stainless steel vacuum vessel according to claim 8, wherein: the storage device comprises a storage table (2) and a baffle (3), wherein the baffle (3) is arranged on the upper side of the storage table (2), the baffle (3) is in a spiral shape, a spiral guide channel (21) is formed in the storage table (2), and the input end of the guide channel (21) is connected with the output end of the conveying chain (1).

10. The method for detecting the thermal radiation detection performance of the stainless steel vacuum vessel as set forth in any one of claims 1 to 9, wherein: the method comprises the following steps:

step 1), transferring a plurality of vessels to be detected to a heating device by a transfer manipulator, and enabling the heating part to extend into the vessels to be detected;

step 2) the heating device heats the interior of each vessel to be detected through the heating part, and the heating is stopped after heating for a specified time;

step 3) the temperature detection device simultaneously detects the temperature of the top of each vessel to be detected on the heating device, and compares the temperature of the top of each vessel to be detected;

step 4), transferring the to-be-detected vessels with the temperature higher than that of the rest to-be-detected vessels and the temperature difference exceeding a set value to a re-inspection device by using the removing device;

and 5) heating the inner wall of the vessel to be detected by the rechecking device, wherein the heating temperature is higher than that of the heating device, detecting whether air leakage occurs at the welding seam of the vessel to be detected, if so, determining that the vessel to be detected is unqualified, and if not, determining that the vessel to be detected is qualified.

Technical Field

A detection device and a detection method for thermal radiation detection performance of a stainless steel vacuum vessel belong to detection devices for stainless steel vacuum vessels.

Background

The stainless steel vacuum container is generally formed by welding two layers of stainless steel cylinders, and the middle of the stainless steel vacuum container is vacuumized to weaken heat transfer between the inside and the outside of the container, so that the heat preservation performance of the container is improved. After the stainless steel vacuum container is welded, the heat conductivity of the stainless steel vacuum container needs to be detected, the inner wall of the stainless steel vacuum container is heated through steam in the detection method adopted at present, the temperature of the outer wall of the stainless steel vacuum container is detected in a hand touch mode, the detection method is low in accuracy and only capable of detecting one by one, the detection speed is low, the production efficiency of the stainless steel vacuum container is affected, and in addition, the detection method is high in heating energy consumption of the stainless steel vacuum container due to the fact that the steam is used for heating the stainless steel vacuum container, and the production cost of the stainless steel vacuum container is high.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the device and the method for detecting the heat radiation detection performance of the stainless steel vacuum vessel can automatically complete the detection of the stainless steel vacuum vessel, and are high in detection speed and low in energy consumption.

The technical scheme adopted by the invention for solving the technical problems is as follows: this stainless steel vacuum household utensils heat radiation detection performance detection device, its characterized in that: including transporting manipulator, heating device, temperature-detecting device, rejecting manipulator and reinspection device, reinspection device and heating device interval set up, transport the manipulator setting in one side of heating device to wait that the household utensils that treat are transported to heating device on, reject the manipulator setting between heating device and reinspection device, heating device's top is provided with the heating portion of a plurality of epirelief, temperature-detecting device sets up directly over heating device.

Preferably, the heating device comprises a detection table and a detection heating rod, the detection heating rod is arranged on the top of the detection table, and the heating part is formed on the top of the detection table. The detection heating rod extends into the vessel to be detected to heat the vessel to be detected, so that the loss of heat can be avoided, and the energy consumption is reduced.

Preferably, the detection heating rod comprises an infrared lamp tube and a mesh enclosure covering the infrared lamp tube. The heating of treating the detector ware has been realized through infrared lamp tube, controls the heating temperature who treats in the detection ware through control heating time, and temperature control is convenient, and the screen panel can avoid infrared lamp tube and wait to detect the contact of household utensils inner wall.

Preferably, the temperature detection device comprises a detection rotating motor, a detection swing arm and a thermal imager, the detection rotating motor is connected with the detection swing arm and drives the detection rotating motor to rotate around the central line of the heating device, the thermal imager is slidably mounted on the detection swing arm, and the thermal imager is connected with a pushing cylinder or a pushing electric cylinder for pushing the thermal imager to move. The detection rotating motor drives the thermal imager to rotate through the detection swing arm, a plurality of utensils to be detected can be detected simultaneously, the pushing cylinder or the pushing electric cylinder pushes the thermal imager to move, and the detection area of the thermal imager is increased.

Preferably, the removing device comprises a swinging device, a translation device, a lifting device and a sucker, the translation device is installed on the swinging device and swings between the heating device and the rechecking device along with the swinging device, the lifting device is installed on the translation device, and the sucker is installed on the lifting device. The swinging device drives the translation device to swing between the heating device and the rechecking device, the translation device drives the lifting device to translate, the position of the lifting device can be adjusted, the lifting device drives the sucker to lift, and unqualified utensils to be detected on the heating device are transferred to the rechecking device through the sucker.

Preferably, the swing device comprises a rejecting swing arm and a rejecting swing motor, the rejecting swing motor is arranged between the rechecking device and the heating device, and the rejecting swing arm is connected with an output shaft of the rejecting swing motor and swings along with the rejecting swing motor.

Preferably, the translation device comprises a translation frame and a translation electric cylinder, the translation frame is slidably mounted on the swing device, and the translation electric cylinder is connected with the translation frame and pushes the translation frame to translate.

Preferably, still include storage device, storage device sets up between the transport chain that is used for carrying the household utensils that wait to detect and the transportation manipulator, and storage device links to each other with the output of transport chain. The storage device can accept the to-be-detected utensils conveyed by the conveying chain, the to-be-detected utensils can be conveniently conveyed to the heating device by the conveying device, and the to-be-detected utensils are fast to place.

Preferably, the storage device comprises a storage table and a baffle plate, the baffle plate is arranged on the upper side of the storage table, the baffle plate is in a spiral shape, a spiral guide channel is formed on the storage table, and the input end of the guide channel is connected with the output end of the conveying chain. The baffle forms the guide way of vortex form at the upside of storage platform, and under the promotion of conveying chain, wait to detect the household utensils and enter into the guide way in proper order, make and wait to detect the household utensils neatly arranged in the guide way, conveniently transport the manipulator and will wait to detect the household utensils and transport to heating device on.

The detection method of the device for detecting the thermal radiation detection performance of the stainless steel vacuum vessel is characterized by comprising the following steps of: the method comprises the following steps:

step 1), transferring a plurality of vessels to be detected to a heating device by a transfer manipulator, and enabling the heating part to extend into the vessels to be detected;

step 2) the heating device heats the interior of each vessel to be detected through the heating part, and the heating is stopped after heating for a specified time;

step 3) the temperature detection device simultaneously detects the temperature of the top of each vessel to be detected on the heating device, and compares the temperature of the top of each vessel to be detected;

step 4), transferring the to-be-detected vessels with the temperature higher than that of the rest to-be-detected vessels and the temperature difference exceeding a set value to a re-inspection device by using the removing device;

and 5) heating the inner wall of the vessel to be detected by the rechecking device, wherein the heating temperature is higher than that of the heating device, detecting whether air leakage occurs at the welding seam of the vessel to be detected, if so, determining that the vessel to be detected is unqualified, and if not, determining that the vessel to be detected is qualified.

Compared with the prior art, the invention has the beneficial effects that:

this transfer device of stainless steel vacuum household utensils heat radiation detection performance detection device can be with waiting to detect the household utensils and transport to heating device on, heating device's heating portion stretches into to wait to detect in the household utensils and to waiting to detect the household utensils internal heating, the messenger waits to detect the household utensils inside and reaches the assigned temperature fast, and compare with the mode that adopts vapor heating, greatly reduced the energy consumption, temperature-detecting device can detect the temperature of a plurality of outer walls of waiting to detect the household utensils simultaneously, it is fast to detect, and it is more accurate to detect, removing devices can wait to detect household utensils removal with unqualified, and transport to the retest and detect once more on the device, the accuracy of detection has further been guaranteed.

The detection method simultaneously detects a plurality of vessels to be detected, judges whether the vessels to be detected meet the requirements or not by comparing the temperature at the top of the vessels to be detected, eliminates the interference of the ambient temperature, further ensures the detection accuracy, the rechecking device continuously heats the interior of the vessels to be detected, if the vessels to be detected are unqualified, the gas between two layers of stainless steel is heated and expanded and is discharged through a leakage part, the temperature of the discharged gas is higher than the external ambient temperature, whether the gas leaks or not can be judged by detecting the temperature outside a welding line, the rechecking device can judge the gas leakage position, so that the unqualified vessels to be detected can be conveniently repaired, and the problem that the current unqualified products can only be treated by waste is solved.

Drawings

FIG. 1 is a schematic front view of a thermal radiation detection performance detection device for a stainless steel vacuum vessel.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

FIG. 4 is a schematic top view of the connection of the shutter to the storage station.

Fig. 5 is an inner wall weld detecting apparatus.

In the figure: 1. conveying chain 2, storage platform 3, baffle 4, transport stand 5, transport swing arm 6, transport lift cylinder 7, mounting disc 8, sucking disc 9, detection frame 10, detect and rotate motor 11, detect swing arm 12, thermal imager 13, detect platform 14, detect heating rod 15, recheck platform 16, reject swing arm 17, translation frame 18, reject lift cylinder 19, installation pole 20, carousel 21, guidance channel 2101, leading-in portion 22, reject stand 23, recheck heating rod 24, urceolus 2401, steam inlet 25, inner tube 26, jacket 27, fumarole.

Detailed Description

Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 5.

The utility model provides a stainless steel vacuum household utensils heat radiation detection performance detection device, is including transporting the manipulator, heating device, temperature-detecting device, rejects manipulator and reinspection device, reinspection device and heating device interval set up, transport the manipulator setting in one side of heating device to wait that the household utensils that detect are transported to heating device on, reject the manipulator setting between heating device and reinspection device, heating device's top is provided with the heating portion of a plurality of epirelief, temperature-detecting device sets up directly over heating device. This transfer device of stainless steel vacuum household utensils heat radiation detection performance detection device can be with waiting to detect the household utensils and transport to heating device on, heating device's heating portion stretches into to wait to detect in the household utensils and to waiting to detect the household utensils internal heating, the messenger waits to detect the household utensils inside and reaches the assigned temperature fast, and compare with the mode that adopts vapor heating, greatly reduced the energy consumption, temperature-detecting device can detect the temperature of a plurality of outer walls of waiting to detect the household utensils simultaneously, it is fast to detect, and it is more accurate to detect, removing devices can wait to detect household utensils removal with unqualified, and transport to the retest and detect once more on the device, the accuracy of detection has further been guaranteed.

The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.

Example 1

As shown in FIGS. 1-4: this stainless steel vacuum household utensils heat radiation detection performance detection device still includes storage device, heating device and recheck the device and set gradually, carries chain 1 to set up the one side of keeping away from heating device at storage device, carries chain 1's output and links to each other with storage device to wait to detect the household utensils and send into storage device and go up the storage, transport the manipulator setting between storage device and heating device, removing devices sets up between heating device and recheck the device. In this embodiment, the vessel to be tested is a stainless steel vacuum container, and the open end of the stainless steel vacuum container faces downward when the stainless steel vacuum container is conveyed on the conveying chain 1.

Heating device and temperature-detecting device all install on testing stand 9, and heating device installs at the middle part of testing stand 9, and temperature-detecting device installs the top at testing stand 9.

The storage device comprises a storage table 2 and a baffle 3, wherein the storage table 2 is a disc horizontally arranged, the baffle 3 is arranged on the upper side of the storage table 2, the bottom of the baffle 3 is connected with the top of the storage table 2, the baffle 3 is in a vortex shape, so that a vortex-shaped guide channel 21 is formed on the upper side of the storage table 2, an input end of the guide channel 21 is provided with an introduction part 2101, and the introduction part 2101 is in butt joint with an output end of a conveying chain 1, so that a stainless steel vacuum container conveyed on the conveying chain 1 enters the guide channel 21.

Transport the manipulator including transporting stand 4, transport swing motor (not drawn in the figure), transport swing arm 5, transport lift cylinder 6, mounting disc 7 and install the sucking disc 8 on mounting disc 7, transport the vertical setting of stand 4, transport stand 4 and set up between storage platform 2 and heating device, transport 5 level settings of swing arm, transport swing arm 5 and be located between heating device and the temperature-detecting device, the rotatable top of installing at transport stand 4 of one end of transporting swing arm 5, transport lift cylinder 6 is installed to the other end, transport swing motor installs on transporting stand 4, the output shaft of transporting swing motor links to each other with transport swing arm 5, and drive its swing between storage platform 2 and heating device. Transport the vertical setting of lift cylinder 6, transport lift cylinder 6's piston rod and link to each other with mounting disc 7 to drive mounting disc 7 and go up and down, a plurality of sucking discs 8 are installed to the bottom of mounting disc 7. When the storage table 2 is filled with the stainless steel vacuum containers to be detected, the transfer manipulator simultaneously conveys a plurality of stainless steel vacuum containers to be detected to the heating device.

The heating device comprises a detection table 13 and a detection heating rod 14, the detection table 13 is disc-shaped, the detection table 13 is horizontally arranged in the middle of the detection frame 9, the detection heating rod 14 is arranged on the upper side of the detection table 13 to form a heating part, and the bottom of the detection heating rod 14 is fixedly connected with the top of the detection table 13. The detection heating rods 14 are arranged on the detection table 13 at intervals, and the detection heating rods 14 are arranged in a vortex shape coaxial with the detection table 13 to be matched with the shape of the guide channel 21, so that the detection heating rods 14 can conveniently receive a plurality of stainless steel vacuum containers transferred by the transfer manipulator.

The detection heating rod 14 comprises an infrared lamp tube and a mesh enclosure covering the infrared lamp tube, the infrared lamp tube extends into the stainless steel vacuum container during heating, the mesh enclosure can avoid mutual contact between the inner wall of the stainless steel vacuum container and the infrared lamp tube, the heating temperature of the stainless steel vacuum container is controlled by controlling the heating time, the stainless steel vacuum container is directly heated, the heating effect is good, the heating speed is high, and the heat damage is reduced.

The temperature detection device comprises a detection rotating motor 10, a detection swing arm 11, a pushing cylinder or a pushing electric cylinder and a thermal imager 12, wherein the pushing electric cylinder is adopted in the embodiment. Detect and rotate motor 10 and install the top at test rack 9, detect the axis of the output shaft of rotating motor 10 and the axis coincidence that examines test table 13, detect 11 levels of swing arm and set up, and detect that swing arm 11 is higher than the setting of transporting swing arm 5, the one end that detects swing arm 11 links to each other with the output shaft that detects rotation motor 10, and rotate motor 10's rotation and swing in step along with detecting, thermal imaging system 12 slidable installs the downside at detecting swing arm 11, promote the electric jar and install on detecting swing arm 11, promote the electric jar and link to each other with thermal imaging system 12, and promote it and slide along detecting swing arm 11, make thermal imaging system 12 can detect a plurality of stainless steel vacuum vessel simultaneously, detect fastly.

The removing device comprises a swinging device, a translation device, a lifting device and a sucker 8, wherein the translation device is installed on the swinging device and swings back and forth between the rechecking device and the detection table 13 along with the swinging device, the lifting device is installed on the translation device and moves synchronously along with the translation device, and the sucker 8 is installed on the lifting device and goes up and down synchronously along with the lifting device.

The swinging device comprises a removing swing arm 16, a removing swing motor (not shown in the figure) and a removing upright post 22, the removing upright post 22 is vertically arranged between the rechecking device and the detection platform 13, the removing swing arm 16 is horizontally arranged at the lower side of the detection swing arm 11, the end part of the removing swing arm 16 is rotatably arranged at the top of the removing upright post 22, the removing swing motor is arranged on the removing upright post 22, and the output shaft of the removing swing motor is connected with the removing swing arm 16 and drives the removing swing motor to swing.

The translation device comprises a translation frame 17 and a translation electric cylinder (not shown in the figure), the translation frame 17 is slidably arranged on the removing swing arm 16, the translation electric cylinder is arranged on the removing swing arm 16, and the translation electric cylinder is connected with the translation frame 17 and pushes the translation electric cylinder to reciprocate along the removing swing arm 16.

The lifting device is used for removing the lifting cylinder 18, the lifting cylinder 18 is vertically installed on the translation frame 17, the sucking discs 8 are installed on the piston rods of the lifting cylinder 18, only one sucking disc 8 is arranged on the piston rod of the lifting cylinder 18, and accordingly unqualified stainless steel vacuum containers on the detection table 13 can be transferred to the rechecking device.

The rechecking device comprises a rechecking table 15, a rotary table 20, a rechecking motor (not shown in the figure), a rechecking heating rod 23 and a thermal imager 12, wherein the rechecking table 15 is horizontally arranged, the rotary table 20 is arranged in the middle of the rechecking table 15, the rotary table 20 is horizontally arranged, the rechecking motor is arranged on the rechecking table 15, an output shaft of the rechecking motor is connected with the rotary table 20 and drives the rotary table 20 to rotate, and the rechecking heating rod 23 is arranged on the rotary table 20 and synchronously rotates along with the rotary table 20. Vertical installation pole 19 is installed to one side of rechecking platform 15, and thermal imaging system 12 is installed on installation pole 19, and in this embodiment, two thermal imaging systems 12 are installed from top to bottom interval on rechecking device's the installation pole 19, can detect the welding seam at stainless steel vacuum vessel top and bottom respectively.

The reinspection heating rod 23 comprises an electric heating tube and a mesh enclosure, and the mesh enclosure is covered outside the electric heating tube to prevent the electric heating tube from contacting the inner wall of the stainless steel vacuum container.

A detection method of the device for detecting the thermal radiation detection performance of the stainless steel vacuum vessel comprises the following steps:

step 1), transferring a plurality of vessels to be detected to a heating device by a transferring manipulator, and enabling the heating part to extend into the vessels to be detected.

The stainless steel vacuum container is conveyed on the conveying chain 1 with the mouth facing downwards so as to facilitate detection. The conveying chain 1 conveys the stainless steel vacuum containers into the guide channel 21 one by one, and the stainless steel vacuum containers are filled in the guide channel 21 under the guide action of the guide channel 21. The transfer manipulator simultaneously sucks the bottoms of all stainless steel vacuum containers on the storage platform 2, transfers all the stainless steel vacuum containers to the detection platform 13, and the detection heating rods 14 are all stretched into each stainless steel vacuum container.

And 2) heating the interior of each vessel to be detected by the heating device through the heating part, and stopping heating after heating for a specified time.

Each detection heating rod 14 is electrified to work, the inner wall of each stainless steel vacuum container is heated, the heating temperature in the stainless steel vacuum container is controlled by controlling the heating time, and after the heating is carried out for a specified time, the heating is stopped.

And 3) simultaneously detecting the temperature of the top of each vessel to be detected on the heating device by the temperature detection device, and comparing the temperatures of the tops of the vessels to be detected.

The detection rotating motor 10 drives the detection swing arm 11 to swing, and meanwhile, the electric cylinder is pushed to push the corresponding thermal imager 12 to move, so that the top temperature of all the stainless steel vacuum containers on the detection table 13 is detected, and the temperature of the tops of all the stainless steel vacuum containers is compared.

And 4) transferring the to-be-detected vessels with the temperature higher than that of the rest to-be-detected vessels and the temperature difference exceeding the set value to a re-inspection device by the removing device.

When the temperature of the top of a certain stainless steel vacuum container is higher than the temperatures of the tops of other stainless steel vacuum containers and the temperature difference is larger than a set value, the stainless steel vacuum container is considered to be unqualified, and the unqualified stainless steel vacuum container is transferred to a rechecking device for rechecking by the rejecting device.

The average value of the temperature of a plurality of stainless steel vacuum containers measured each time can be calculated, the temperature of each stainless steel container is compared with the average value, the stainless steel container with the temperature higher than the average value and the difference larger than the set threshold value is regarded as an unqualified container, and the stainless steel container is moved to a rechecking device for secondary detection.

And 5) heating the inner wall of the vessel to be detected by the rechecking device, wherein the heating temperature is higher than that of the heating device, detecting whether air leakage occurs at the welding seam of the vessel to be detected, if so, determining that the vessel to be detected is unqualified, and if not, determining that the vessel to be detected is qualified.

The reinspection heating rod 23 extends into the stainless steel vacuum container, and heats the inner wall of the stainless steel vacuum container again, and the heating temperature is higher than the heating temperature of the detection heating rod 14. If the stainless steel vacuum container is unqualified, then there can be gas between the two-layer stainless steel, gas escapes during heating, and the temperature of the gas that escapes is higher than the temperature of outside air, carousel 20 drives the stainless steel vacuum container and rotates, two thermal imaging system 12 detect the welding seam of stainless steel vacuum container upper end and lower extreme simultaneously, and judge whether there is gas leakage through temperature detection, then this stainless steel vacuum container is unqualified when gas leakage, and can the accurate gas leakage position of detection, weld the position of unqualified department promptly, can repair the welding seam this moment. And when the stainless steel vacuum container is detected to be airtight, the stainless steel vacuum container is qualified.

The detection method also comprises the step 6) of counting the leakage positions of the welding seams of all the stainless steel vacuum containers, analyzing the leakage positions of the welding seams, and making reference and guidance for the improvement of the production process.

When the stainless steel vacuum container without tail vacuum is detected, the temperature of the plugging point of the stainless steel vacuum container needs to be additionally detected so as to judge whether the plugging point leaks air or not.

Example 2

As shown in fig. 5: example 2 differs from example 1 in that: still include inner wall welding seam detection device, inner wall welding seam detection device includes outer wall rising temperature device and inner wall detection device (not drawn in the picture), outer wall rising temperature device includes urceolus 24 and inner tube 25, the coaxial setting of inner tube 25 is in urceolus 24, the outer wall of inner tube 25 sets up with the inner wall interval of urceolus 24, and the top of urceolus 24 and the top sealing connection of inner tube 25 to form between urceolus 24 and inner tube 25 and press from both sides the cover 26, the bottom of urceolus 24 is provided with the steam inlet 2401 that is linked together with pressing from both sides the cover 26. The inner cylinder 25 is provided with an air jet hole 27 for communicating the jacket 26 with the inner cylinder 25, and the vessel to be detected in the inner cylinder 25 can be heated uniformly through the air jet hole 27.

The detection device comprises a rotating motor and a temperature probe, wherein the temperature probe is arranged on the rotating motor and synchronously rotates along with the rotating motor. When detecting a stainless steel vacuum container with a welding line on the inner wall, the lower part of the stainless steel vacuum container is placed in the inner cylinder 25, then the temperature probe extends into the stainless steel vacuum container and is maintained at the same height with the welding line of the inner wall, the rotating motor drives the temperature probe to rotate, the detection of the welding line of the inner wall can be completed, the position of the air leakage of the welding line of the inner wall can be determined, and the detection principle is the same as that of the welding line at the upper end and the lower end of the stainless steel vacuum container in embodiment 1.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.