Cup and kettle heat preservation performance automatic detection device and use method thereof

Abstract

According to the automatic detection device for the thermal insulation performance of the cup and the use method of the automatic detection device, the thermal insulation performance of the cup and the kettle is automatically detected by integrating a plurality of assemblies, and the detection efficiency and accuracy are improved. The electrical connection of the central control assembly ensures the convenience and real-time performance of the operation, so that the whole detection process is smoother and more controllable. The temperature of the cups and the kettles is measured according to the volumes of the cups and the kettles, and the heat preservation performance of the cups and the kettles is judged according to the temperature rise curve.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated stoves, and in particular to an automatic detection device for the heat preservation performance of cups and pots and a method for using the same. Background Art

[0002] During the production process, metal thermos cups (such as stainless steel thermos cups, titanium alloy thermos cups, etc.) form an insulation layer by vacuum-sealing the interlayer space between the inner liner and the outer shell of the cup body to achieve the insulation effect. After the inner liner of the cup body is heated, the outer shell temperature of the thermos cup with unqualified vacuum sealing of the inner and outer interlayers is significantly higher than the outer shell temperature of the qualified thermos cup, that is, the thermal insulation performance of the cup body with unqualified vacuum sealing is poor. Therefore, the thermal insulation performance of the thermos cup can be judged based on the outer shell temperature of the cup body after the inner liner is heated. During the production process of the metal thermos cup, the cup body needs to be tested for thermal insulation performance 2-3 times to eliminate defective products in the vacuum sealing process.

[0003] When testing cups and pots, the current testing device cannot adapt to a variety of different cups and pots, so it needs to be improved. Summary of the invention

[0004] Aiming at the defects in the prior art that the device cannot adapt to various cups and pots, the present invention provides a novel automatic detection device for the heat preservation performance of cups and pots and a method for using the device.

[0005] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: A device for automatically detecting the thermal insulation performance of cups and pots, comprising a central control component, a support frame, a transverse moving component, a driving motor, a lifting component, a temperature measuring component, a transmission component, a round hole cup holder, and a cup body positioning component. The transverse moving component is slidably connected to the support frame, the driving motor and the lifting component are both arranged on the transverse moving component, the driving motor is connected to the lifting component by means of the transmission component, the temperature measuring component is fixed to the lower end of the lifting component, the temperature measuring component moves vertically up and down by means of the cooperation of the lifting component with the driving motor and the transmission component, and the central control component is electrically connected to the driving motor and the temperature measuring component.

[0006] The design integrates multiple components to achieve automated testing of the heat preservation performance of cups and pots, improving testing efficiency and accuracy. The electrical connection of the central control component ensures the convenience and real-time operation, making the entire testing process smoother and more controllable.

[0007] Preferably, the temperature measuring component of the above-mentioned automatic detection device for heat preservation performance of cups and pots includes a temperature sensor and a distance sensor, and the distance temperature sensor and the distance sensor are electrically connected to the central control component.

[0008] By integrating temperature sensors and distance sensors, the device can accurately measure the temperature difference and distance inside and outside the cup or pot, thereby more accurately evaluating the thermal insulation performance. At the same time, the electrical connection to the central control component ensures the real-time and reliability of data transmission.

[0009] Preferably, the lifting assembly of the above-mentioned automatic detection device for thermal insulation performance of cups and pots includes a flange at the top of the screw and a screw, and the transmission assembly includes a synchronous belt and two synchronous pulleys, one of which is connected to the drive motor, and the other is threadedly connected to the screw.

[0010] This design ensures the smooth operation and precise control of the lifting assembly by using synchronous belts and synchronous pulleys, and improves the stability and accuracy of the up and down movement of the temperature measuring assembly.

[0011] Preferably, the lateral moving component of the above-mentioned automatic detection device for the thermal insulation performance of a cup and pot includes a pitch-adjusting screw, a pitch-adjusting knob, a lateral pitch-adjusting mounting plate, a lower bearing seat of the screw, and an upper bearing seat of the screw. The screw passes through the lower bearing seat of the screw and the upper bearing seat of the screw. The driving motor and the lifting assembly are fixed on the lateral pitch-adjusting mounting plate. The number of the pitch-adjusting screws is 2, and the thread directions of the two pitch-adjusting screws are opposite. The pitch-adjusting knob is threadedly connected to the two pitch-adjusting screws, respectively, one of which is connected to the lower bearing seat of the screw, and the other is connected to the upper bearing seat of the screw.

[0012] By providing two pitch-adjusting screw rods with opposite thread directions, the device can achieve precise adjustment and positioning of the transverse moving component, enhance the adaptability and flexibility of the device, and ensure the accuracy of the detection process.

[0013] Preferably, the lateral moving component of the above-mentioned automatic detection device for thermal insulation performance of cups and pots also includes a sliding rod, which is fixed on the lateral distance adjustment mounting plate, and the lower bearing seat of the screw rod and the upper bearing seat of the screw rod are slidably connected to the sliding rod.

[0014] The use of the slide bar enables the bearing seat to move smoothly along the slide bar, reducing friction and wear, and improving the stability and durability of the lateral movement assembly.

[0015] Preferably, the cup body positioning assembly of the above-mentioned automatic detection device for thermal insulation performance of cups and pots includes a cylinder and a cylinder push rod, and the round hole cup holder is provided with a cup placing opening. When measuring temperature, the cylinder drives the cylinder push rod to press the cup body against the edge of the cup placing opening.

[0016] Through the coordinated use of the cylinder and the cylinder push rod, the device can stably fix the cup body to ensure that the cup body will not move or tilt during the temperature measurement process, thereby improving the accuracy and reliability of the temperature measurement.

[0017] Preferably, the cup body positioning assembly of the above-mentioned automatic detection device for thermal insulation performance of cups and pots also includes a buffer pad mounting plate and a buffer pad, the buffer pad is fixed to the buffer pad mounting plate, and the buffer pad mounting plate is fixed to the cylinder push rod.

[0018] The use of the buffer pad can reduce the pressure of the cylinder push rod on the cup body, protect the cup body from damage, and at the same time ensure the close contact between the cup body and the edge of the cup opening, thereby improving the stability of positioning.

[0019] Preferably, the buffer pad mounting plate of the above-mentioned automatic detection device for thermal insulation performance of cups and pots is in the shape of >.

[0020] The >-shaped design of the buffer pad mounting plate can better adapt to the shape of the cup body and provide more uniform pressure distribution, thereby ensuring the stability and safety of the cup body during temperature measurement.

[0021] Preferably, the edge of the cup opening of the automatic detection device for heat preservation performance of cups and pots described above is provided with a cup holder enclosure.

[0022] The cup holder enclosure can prevent the cup body from sliding or moving during the temperature measurement process, increase the stability of the cup body positioning, and ensure the continuity and accuracy of the detection process.

[0023] A method for using an automatic detection device for the thermal insulation performance of a cup or pot, comprising the following steps: S1. Determine the volume of the cup or pot, if the volume of the cup or pot is less than or equal to 500ml, proceed to step S2, if the volume of the cup or pot is greater than 500ml and less than or equal to 1000ml, proceed to step S3, if the volume of the cup or pot is greater than 1000ml, proceed to step S4; S2. Small cup or pot detection: fix the cup or pot on a round hole cup rack, heat the bottom of the cup or pot at 150-250°C, measure the surface temperature of the inner liner of the cup or pot with the help of a temperature measuring component and record the temperature, and draw a temperature rise curve after heating for 200-240 seconds. Curve, if the heating curve is in area 3, the thermal insulation performance of the cup and pot is qualified, if the heating curve is in area 2, the thermal insulation performance of the cup and pot is unqualified; S3. Medium-sized cup and pot detection: fix the cup and pot on the round hole cup rack, heat the bottom of the cup and pot to 150-250℃, measure the surface temperature of the inner liner of the cup and pot with the help of the temperature measuring component and record the temperature, draw the heating curve after heating for 200-240 seconds, if the heating curve is in area 3, the thermal insulation performance of the cup and pot is qualified, if the heating curve is in area 2, the thermal insulation performance of the cup and pot is unqualified; S4. Large cup and pot detection: fix the cup and pot on the round hole cup rack, heat the bottom of the cup and pot to 150-250℃, measure the surface temperature of the inner liner of the cup and pot with the help of the temperature measuring component and record the temperature, draw the heating curve after heating for 200-240 seconds, if the heating curve is in area 3, the thermal insulation performance of the cup and pot is qualified, if the heating curve is in area 2, the thermal insulation performance of the cup and pot is unqualified; Curve 1 is the state where the vacuum layer of the cup pot is an ideal vacuum. During the heating process of 0-240s, the temperature change of the bottom of the inner liner of the cup pot 1 is not obvious. That is, Curve 1 shows the temperature rise curve of the inner liner of the cup pot when the thermal insulation performance is the best under ideal conditions; Curve 3 shows the temperature rise of the bottom of the cup or pot with the worst thermal insulation performance under different volumes, which is equivalent to the cup or pot not undergoing the vacuum process. Accordingly, the temperature difference before and after heating of the bottom of the cup or pot is relatively large, that is, Curve 3 shows the temperature rise curve of the cup or pot with the worst thermal insulation performance under undesirable conditions. Curve 2 is the critical value curve between qualified and unqualified thermal insulation performance of the cup and pot obtained by combining theoretical simulation calculation and actual production verification. The cup and pot are placed on a heating station at 200℃, and the temperature change data of the bottom of the cup and pot are recorded. Under the same conditions, the cup and pot are simulated and calculated using the same parameters. The two sets of temperature rise data of the bottom of the cup and pot obtained from the calculation results and the actual measurement results are fitted with a high-order polynomial to obtain a curve. The fitting accuracy is improved by increasing the order of the polynomial. This time, a higher-precision seventh-order fitting is used, and finally Curve 2 is obtained; The temperature measurement diagram is divided into 4 areas through curves 1, 2, and 3. Area 1 is the temperature distribution area of ​​the cup or pot directly heated without a heat insulation layer; Area 2 is the temperature distribution area of ​​the bottom of the inner liner of the cup or pot with unqualified thermal insulation performance during the heating process; Area 3 is the temperature distribution area of ​​the bottom of the inner liner of the cup or pot with qualified thermal insulation performance during the heating process; Area 4 can be considered as an insulation layer formed between the inner liner and the outer shell and the surrounding environment is almost not transferring heat, so there is almost no heat transferred to the bottom of the inner liner of the cup or pot during the heating process, and thus there is almost no temperature change. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 . DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 The present invention is further described in detail with specific embodiments, but they are not intended to limit the present invention: Example

[0026] A device for automatically detecting the heat preservation performance of cups and pots, comprising a central control component, a support frame 4, a transverse moving component 3, a driving motor 14, a lifting component, a temperature measuring component, a transmission component, a round hole cup holder 6, and a cup body positioning component. The transverse moving component 3 is slidably connected to the support frame 4, the driving motor 14 and the lifting component are both arranged on the transverse moving component 3, the driving motor 14 is connected to the lifting component with the aid of the transmission component, the temperature measuring component is fixed to the lower end of the lifting component, the temperature measuring component moves vertically up and down with the aid of the cooperation of the lifting component with the driving motor 14 and the transmission component, and the central control component is electrically connected to the driving motor 14 and the temperature measuring component.

[0027] Preferably, the distance temperature sensor and the distance sensor are electrically connected to the central control component.

[0028] Preferably, the transmission assembly includes a synchronous belt 10 and two synchronous pulleys 11 , wherein one synchronous pulley 11 is connected to the drive motor 14 , and the other synchronous pulley 11 is threadedly connected to the screw rod 2 .

[0029] Preferably, the screw rod 2 passes through the screw rod lower bearing seat 34 and the screw rod upper bearing seat 35, the drive motor 14 and the lifting assembly are fixed on the lateral pitch adjustment mounting plate 33, the number of the pitch adjustment screw rods 31 is 2, and the thread directions of the two pitch adjustment screw rods 31 are opposite, and the pitch adjustment knob 32 is threadedly connected to the two pitch adjustment screw rods 31 respectively, one of the pitch adjustment screw rods 31 is connected to the screw rod lower bearing seat 34, and the other pitch adjustment screw rod 31 is connected to the screw rod upper bearing seat 35.

[0030] Preferably, the slide rod 36 is fixed on the transverse distance adjustment mounting plate 33 , and the screw lower bearing seat 34 and the screw upper bearing seat 35 are slidably connected to the slide rod 36 .

[0031] Preferably, the round hole cup holder 6 is provided with a cup placement opening 61 , and when measuring the temperature, the cylinder 16 drives the cylinder push rod 17 to press the cup body against the edge of the cup placement opening 61 .

[0032] Preferably, the buffer pad 15 is fixed to the buffer pad mounting plate 18 , and the buffer pad mounting plate 18 is fixed to the cylinder push rod 17 .

[0033] According to the automatic detection device for heat preservation performance of cups and pots according to claim 7, the buffer pad mounting plate 18 is in the shape of >.

[0034] According to the automatic detection device for heat preservation performance of cups and pots according to claim 7, a cup holder enclosure 19 is provided at the edge of the cup holder opening 61.

[0035] like Figure 1As shown, when the system is not working, all components are in the initial state, that is, the cylinder on the round hole cup holder is not working, the cylinder push rod is in the initial position, and the lead screw is at the uppermost end driven by the motor. When the system starts working, put the cup into the round hole cup holder and fit it close to the cup holder enclosure. Then the photoelectric sensor on the round hole cup holder recognizes that there is a cup on the detection station, and the cylinder starts working, pushing the cylinder push rod to press the cup to ensure that the cup does not move laterally; adjust the distance adjustment knob of the lateral distance adjustment device on the square aluminum rack. Driven by the distance adjustment knob, the two distance adjustment lead screws with opposite rotation directions rotate synchronously to drive the lead screw upper bearing seat and the lead screw lower bearing seat connected to the distance adjustment lead screw, and displace laterally with the cooperation of the slide rod, so as to adjust the axis of the temperature measurement module to coincide with the axis of the cup body; after the positioning adjustment is completed, the motor drives the synchronous pulley to rotate so as to achieve the synchronization of the lead screw connected to the synchronous belt. The step pulley rotates to move the screw rod up and down. The movement of the screw rod moves the temperature measuring module on the flange at the bottom of the screw rod to the bottom of the inner liner of the cup pot. The distance sensor on the temperature measuring module recognizes that the distance is zero (that is, the temperature measuring module is tightly fitted with the bottom of the inner liner of the cup pot). The temperature sensor group on the temperature measuring module quickly samples the temperature of the bottom of the inner liner of the cup pot, the motor reverses, the screw rod moves up, and the temperature measuring module returns to the initial position; the control system processes the temperature data collected by the temperature sensor and analyzes whether the thermal insulation performance of the cup pot is qualified, and the final signal is responded to by the signal light on the round hole cup rack. When the signal light flashes red, the thermal insulation performance of the cup pot is unqualified, and when the signal light is green, the thermal insulation performance of the cup pot is qualified. After the cup pot detection is completed, the cylinder stops working, the cylinder push rod is retracted, and the cup pot is taken out to separate qualified and unqualified products.

[0036] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. An automatic detection device for heat preservation performance of cups and pots, characterized by: The invention comprises a central control component, a support frame (4), a transverse moving component (3), a driving motor (14), a lifting component, a temperature measuring component, a transmission component, a round hole cup holder (6), and a cup body positioning component, wherein the transverse moving component (3) is slidably connected to the support frame (4), the driving motor (14) and the lifting component are both arranged on the transverse moving component (3), the driving motor (14) is connected to the lifting component by means of the transmission component, the temperature measuring component is fixed to the lower end of the lifting component, the temperature measuring component is vertically moved up and down by means of the cooperation between the lifting component and the driving motor (14) and the transmission component, and the central control component is electrically connected to the driving motor (14) and the temperature measuring component.

2. The automatic detection device for heat preservation performance of a cup or pot according to claim 1 is characterized in that: The temperature measurement component includes a temperature sensor and a distance sensor, and the temperature sensor and the distance sensor are electrically connected to the central control component.

3. The automatic detection device for heat preservation performance of a cup or pot according to claim 1 is characterized in that: The lifting assembly comprises a flange plate (1) at the top end of a lead screw and a lead screw (2); the transmission assembly comprises a synchronous belt (10) and two synchronous pulleys (11), wherein one synchronous pulley (11) is connected to the drive motor (14), and the other synchronous pulley (11) is threadedly connected to the lead screw (2).

4. The automatic detection device for heat preservation performance of cups and pots according to claim 3 is characterized by: The lateral movement assembly (3) comprises a pitch-adjusting screw (31), a pitch-adjusting knob (32), a lateral pitch-adjusting mounting plate (33), a screw lower bearing seat (34), and a screw upper bearing seat (35); the screw (2) passes through the screw lower bearing seat (34) and the screw upper bearing seat (35); the drive motor (14) and the lifting assembly are fixed on the lateral pitch-adjusting mounting plate (33); the number of the pitch-adjusting screws (31) is two, and the thread directions of the two pitch-adjusting screws (31) are opposite; the pitch-adjusting knob (32) is respectively threadedly connected to the two pitch-adjusting screws (31); one of the pitch-adjusting screws (31) is connected to the screw lower bearing seat (34), and the other pitch-adjusting screw (31) is connected to the screw upper bearing seat (35).

5. The automatic detection device for heat preservation performance of a cup or pot according to claim 4 is characterized in that: The lateral movement assembly (3) further comprises a slide rod (36), wherein the slide rod (36) is fixed on the lateral distance adjustment mounting plate (33), and the screw rod lower bearing seat (34) and the screw rod upper bearing seat (35) are slidably connected to the slide rod (36).

6. The automatic detection device for heat preservation performance of cups and pots according to claim 1 is characterized by: The cup body positioning assembly comprises a cylinder (16) and a cylinder push rod (17); the round hole cup holder (6) is provided with a cup placement opening (61); when measuring temperature, the cylinder (16) drives the cylinder push rod (17) to press the cup body against the edge of the cup placement opening (61).

7. The automatic detection device for heat preservation performance of cups and pots according to claim 6 is characterized by: The cup body positioning assembly further comprises a buffer pad mounting plate (18) and a buffer pad (15), wherein the buffer pad (15) is fixed to the buffer pad mounting plate (18), and the buffer pad mounting plate (18) is fixed to the cylinder push rod (17).

8. The automatic detection device for heat preservation performance of cups and pots according to claim 7 is characterized by: The buffer pad mounting plate (18) is in a > shape.

9. The automatic detection device for heat preservation performance of cups and pots according to claim 7 is characterized by: A cup holder enclosure (19) is provided at the edge of the cup placement opening (61).

10. A method for using the automatic detection device for heat preservation performance of a cup or pot according to any one of claims 1 to 9, characterized in that: The steps include: S1. Determine the volume of the cup pot. If the volume of the cup pot is less than or equal to 500ml, proceed to step S2. If the volume of the cup pot is greater than 500ml and less than or equal to 1000ml, proceed to step S3. If the volume of the cup pot is greater than 1000ml, proceed to step S4. S2. Small cup and pot test: Fix the cup and pot on the round hole cup holder (6), heat the bottom of the cup and pot to 150-250°C, measure the surface temperature of the inner liner of the cup and pot with the help of the temperature measuring component and record the temperature, draw a heating curve after heating for 200-240 seconds, if the heating curve is in area 3, the heat preservation performance of the cup and pot is qualified, if the heating curve is in area 2, the heat preservation performance of the cup and pot is unqualified; S3. Medium-sized cup and pot test: Fix the cup and pot on the round hole cup holder (6), heat the bottom of the cup and pot to 150-250°C, measure the surface temperature of the inner liner of the cup and pot with the help of the temperature measuring component and record the temperature, draw a heating curve after heating for 200-240 seconds, if the heating curve is in area 3, the heat preservation performance of the cup and pot is qualified, if the heating curve is in area 2, the heat preservation performance of the cup and pot is unqualified; S4. Large cup and pot test: Fix the cup and pot on the round hole cup holder (6), heat the bottom of the cup and pot to 150-250°C, measure the surface temperature of the inner liner of the cup and pot with the help of the temperature measuring component and record the temperature, draw a temperature rise curve after heating for 200-240 seconds, if the temperature rise curve is in area 3, the heat preservation performance of the cup and pot is qualified, if the temperature rise curve is in area 2, the heat preservation performance of the cup and pot is unqualified; Curve 1 is the state where the vacuum layer of the cup pot is an ideal vacuum. During the heating process of 0-240s, the temperature change of the bottom of the inner liner of the cup pot 1 is not obvious. That is, Curve 1 shows the temperature rise curve of the inner liner of the cup pot when the thermal insulation performance is the best under ideal conditions; Curve 3 shows the temperature rise of the bottom of the cup or pot with the worst thermal insulation performance under different volumes, which is equivalent to the cup or pot not undergoing the vacuum process. Accordingly, the temperature difference before and after heating of the bottom of the cup or pot is relatively large, that is, Curve 3 shows the temperature rise curve of the cup or pot with the worst thermal insulation performance under undesirable conditions. Curve 2 is the critical value curve between qualified and unqualified thermal insulation performance of the cup and pot obtained by combining theoretical simulation calculation and actual production verification. The cup and pot are placed on a heating station at 200℃, and the temperature change data of the bottom of the cup and pot are recorded. Under the same conditions, the cup and pot are simulated and calculated using the same parameters. The two sets of temperature rise data of the bottom of the cup and pot obtained from the calculation results and the actual measurement results are fitted with a high-order polynomial to obtain a curve. The fitting accuracy is improved by increasing the order of the polynomial. This time, a higher-precision seventh-order fitting is used, and finally Curve 2 is obtained; The temperature measurement diagram is divided into 4 areas through curves 1, 2, and 3. Area 1 is the temperature distribution area of ​​the cup or pot directly heated without a heat insulation layer; Area 2 is the temperature distribution area of ​​the bottom of the inner liner of the cup or pot with unqualified thermal insulation performance during the heating process; Area 3 is the temperature distribution area of ​​the bottom of the inner liner of the cup or pot with qualified thermal insulation performance during the heating process; Area 4 can be considered as an insulation layer formed between the inner liner and the outer shell and the surrounding environment is almost not transferring heat, so there is almost no heat transferred to the bottom of the inner liner of the cup or pot during the heating process, and thus there is almost no temperature change.

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