Temperature measuring device, processing method thereof and temperature measuring method using the same

Abstract

The application discloses a temperature measuring device, which comprises a temperature measuring block, a cover plate and a temperature measuring wire. The temperature measuring block is embedded into the cover plate, and the top end of the temperature measuring block is exposed from the cover plate. One end of the temperature measuring wire is inserted into the temperature measuring block, and the other end is connected with an external device. The cover plate is detachably connected to a heating device. When measuring temperature, the temperature measuring device is mounted on the heating device. At this time, the temperature measuring block is in contact with the heating device, and the temperature can be measured. Therefore, the temperature measuring device has the advantages of simple structure, fixed temperature measuring position and simple temperature measuring mode. The temperature measuring device directly replaces the position of a product, and can directly measure the processing temperature of the product, thereby reducing the measurement error. The temperature measuring device can measure the processing temperature of the heating device without direct contact between a temperature measuring probe and the heating device, thereby prolonging the service life of the temperature measuring device and avoiding the possibility of crushing the product. The temperature measuring wire is far away from the coil of the heating device, and is wrapped by a Teflon cover plate, so that the magnetic field interference generated by the energization of the coil in the heating device is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electromagnetic heating temperature measurement, in particular to a temperature measuring device, a processing method thereof and a temperature measuring method using the temperature measuring device. BACKGROUND

[0002] There are two conventional temperature measurement methods. The first method is to place a temperature sensor inside a heating device, such as the inside of a hot melt head, to detect the temperature by a temperature sensor inside the electromagnetic heating device. However, when the electromagnetic heating device starts heating, the coil inside it will generate a magnetic field when powered on, and the temperature sensor is susceptible to electromagnetic interference. Because of the different eddy currents generated by the magnetic field, the temperature measured at different positions will also be different, and there are phenomena such as easy change of measurement position and unstable measurement temperature. The above situations will cause large fluctuations in temperature measurement data, and even reach an error of 30-50℃, which seriously affects the accuracy of the measured target temperature.

[0003] The second method is to paste a temperature measuring probe on the product by high-temperature adhesive tape. Because it is set on the surface of the product, there is a possibility of crushing the product when the electromagnetic heating device processes the product.

[0004] Therefore, the prior art has defects and needs to be improved. SUMMARY

[0005] The purpose of the present application is to overcome the shortcomings of the prior art and provide a temperature measuring device that can accurately measure the processing temperature of a product, reduce measurement errors caused by indirect measurement, avoid product temperature deviations caused by electromagnetic interference and temperature measurement position differences, ensure product hot melt quality, and improve product yield.

[0006] The technical solution of the present application is as follows: a temperature measuring device measures the temperature of a heating device through a temperature measuring line connected to an external device, characterized in that it comprises a temperature measuring block, a cover plate, and a temperature measuring line, the temperature measuring block is embedded in the cover plate with the top end of the temperature measuring block exposed outside the cover plate, one end of the temperature measuring line is inserted into the temperature measuring block, and the other end is connected to an external device; the cover plate is detachably connected to the heating device.

[0007] Further, the side surface of the temperature measuring block is provided with a temperature measuring channel for inserting the temperature measuring line, and the outside of the temperature measuring channel is provided with a slot.

[0008] Further, the temperature measuring channel is filled with heat-conducting silicone grease, and the temperature measuring line is inserted into the heat-conducting silicone grease.

[0009] Further, the slot is filled with high-temperature adhesive for sealing.

[0010] Further, the cover plate is provided with a wire slot for the temperature measuring line to pass through, and the wire slot is provided on the top surface or the bottom surface of the cover plate.

[0011] Further, the wire slot and the temperature measuring channel are located on the same straight line, and the temperature measuring wire directly penetrates out of the wire slot in a straight line.

[0012] Further, the wire slot is located below the temperature measuring channel, and the temperature measuring wire penetrates out of the wire slot after being bent.

[0013] Further, the bottom surface of the cover plate is provided with a positioning hole perpendicular to the wire slot and a positioning piece matched with the positioning hole, and the positioning hole is in communication with the wire slot, and the positioning piece penetrates through the positioning hole to compress the temperature measuring wire.

[0014] Further, the cover plate comprises a cover plate one and a cover plate two, the cover plate two is located at the bottom of the cover plate one, the cover plate two and the cover plate one are detachably connected, and the cover plate two fixes the temperature measuring block on the cover plate one.

[0015] Further, the bottom surface of the cover plate one is provided with a recess one for accommodating the end part of the heating device and a recess two for accommodating the cover plate two, and the recess two is further provided with a counterbore for accommodating the temperature measuring block.

[0016] Further, the cover plate two is provided with a protruding part corresponding to the position of the slot, and when the cover plate two is connected with the cover plate one, the protruding part is embedded into the slot.

[0017] Further, the top surface of the protruding part is provided with a clamping groove, the temperature measuring wire penetrates out of the clamping groove, and the outer circumferential side of the temperature measuring wire respectively abuts against the clamping groove and the slot.

[0018] Further, the top surface of the cover plate is provided with a calibration groove.

[0019] Further, the side surface of the cover plate is provided with an accommodating groove for embedding the temperature measuring wire.

[0020] The application further provides a processing method of the temperature measuring device, comprising the following steps:

[0021] S1: injecting a heat-conducting medium into the temperature measuring channel of the temperature measuring block;

[0022] S2: inserting the temperature measuring wire into the temperature measuring channel from the outside, so that the end part of the temperature measuring wire is wrapped in the heat-conducting medium;

[0023] S3: placing and fixing the temperature measuring block connected with the temperature measuring wire in the cover plate.

[0024] Further, after the step S2, the opening of the temperature measuring channel is sealed.

[0025] The application further provides a temperature measuring method using the temperature measuring device, comprising the following steps:

[0026] L1: cover the temperature measuring device on the heating device;

[0027] L2: the heating device starts to be powered, the coil inside the heating device generates a magnetic field, thereby generating eddy current, and starts to heat;

[0028] L3: the temperature measuring block is heated by the heating device, and the external device displays the current measured temperature value of the temperature measuring block;

[0029] L4: compare the temperature displayed by the external device with the temperature of the heating device itself, and the heating temperature control precision of the heating device at this time can be obtained, so that whether the temperature of the heating device during work is the expected temperature for product processing can be measured;

[0030] L5: if the measured temperature is the expected temperature, the temperature measuring device can be removed for product processing, and if the measured temperature does not reach the expected temperature, the equipment is debugged and the above steps are repeated for testing until qualified.

[0031] By adopting the above scheme, the present application has the following beneficial effects:

[0032] 1. When measuring the temperature, the temperature measuring device is mounted on the heating device, and the temperature measuring block can be in contact with the heating device to measure the temperature, so that the temperature measuring device has simple structure, fixed temperature measuring position, simple temperature measuring mode, easy operation and convenient maintenance;

[0033] 2. The temperature measuring device directly replaces the position of the product, so that the processing temperature of the product can be directly measured, thereby reducing the measurement error;

[0034] 3. The processing temperature of the heating device can be measured without the temperature measuring probe being in direct contact with the heating device, thereby prolonging the service life of the temperature measuring device and avoiding the possibility of crushing the product;

[0035] 4. The temperature measuring wire is far away from the coil of the heating device, and is wrapped by the Teflon cover plate outside, so that the magnetic field interference generated by the coil of the heating device during power supply is greatly reduced;

[0036] 5. The temperature measuring channel is filled with heat-conducting silicone grease, so that the oxygen in the temperature measuring channel is excluded, and the copper temperature measuring block is prevented from being oxidized. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a combination schematic view of the temperature measuring device and the heating device in embodiment 2 of the present application.

[0038] Figure 2 It is a structure schematic view in embodiment 2 of the present application Figure 1 .

[0039] Figure 3 It is a structure schematic view in embodiment 2 of the present application Figure 2 .

[0040] Figure 4 It is an exploded view of the embodiment 2 of the present application.

[0041] Figure 5 It is a structure schematic view of the cover plate one in the embodiment 2 of the present application.

[0042] Figure 6 It is a structure schematic view of the temperature measuring block of the present application.

[0043] Figure 7 It is a structure schematic view of the cover plate two of the present application.

[0044] Figure 8 It is a structure schematic view of the embodiment 1 of the present application.

[0045] Figure 9 It is a structure schematic view of the embodiment 3 of the present application.

[0046] Figure 10 It is a sectional view of the embodiment 3 of the present application.

[0047] Figure 11 It is a structure schematic view of the cover plate one in the embodiment 3 of the present application. DETAILED DESCRIPTION

[0048] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0049] Embodiment 1:

[0050] Please refer to Figures 1 to 5 The present application provides a temperature measuring device, which measures the temperature of a heating device through a temperature measuring wire connected to an external device, i.e. can be used to measure the heating temperature of the heating device (such as the upper hot melting head and the lower hot melting head 100), comprising: a temperature measuring block 1, a cover plate one 2, a cover plate two 3 and a temperature measuring wire (thermocouple) 4. The temperature measuring block 1 is made of metal material, and when the heating device is powered on, the eddy current generated based on the electromagnetic induction principle makes the metal heat. Preferably, the material of the temperature measuring block 1 is copper, which has the characteristics of good stability and strong heat conductivity compared with other metal materials (such as aluminum).

[0051] Optionally, the temperature measuring block 1 containing the temperature measuring wire 4 is square, and is fixed on the cover plate by high-temperature glue or other clamping methods, at this time the cover plate one 2 and the cover plate two 3 are integrally formed.

[0052] The cover plate one 2 is arranged above the temperature measuring block 1, and the top end of the temperature measuring block 1 is exposed from the cover plate one 2, that is, the top end of the temperature measuring block 1 protrudes from the top surface of the cover plate one 2, and the protruding purpose is to make the temperature measuring block 1 fully contact with the temperature sensor of the upper hot melting head, so that the temperature measuring block 1 can heat better, and the whole temperature measuring block 1 is in a "convex" shape. Specifically, the bottom surface of the cover plate one 2 is provided with a concave cavity one 21, the size of the concave cavity one 21 is slightly larger than the size of the top end of the lower hot melting head 100, and the shape of the concave cavity one 21 is the same as the shape of the top of the lower hot melting head 100, so that the top of the lower hot melting head 100 can be embedded into the concave cavity one 21. In this embodiment, the top end of the hot melting head is square, so the concave cavity one 21 is also square.

[0053] The cover plate two 3 is located at the bottom surface of the temperature measuring block 1, and the cover plate two 3 is used to fix the temperature measuring block 1 on the cover plate one 2. Specifically, the concave cavity one 21 is provided with a concave cavity two 22 for accommodating the cover plate two 3, the size of the concave cavity two 22 is smaller than the size of the concave cavity one 21, and the cover plate two 3 is arranged in the concave cavity two 22. The cover plate two 3 is detachably connected with the cover plate one 2, and can be threadedly connected, a threaded hole is arranged in the concave cavity two 22, the cover plate two 3 is provided with a counterbore corresponding to the threaded hole, and the cover plate two 3 is fixed on the cover plate one 2 by a screw, of course, the cover plate two 3 can also be connected to the cover plate one 2 in other detachable manner. Preferably, the cover plate one 2 and the cover plate two 3 are made of Teflon material which can withstand high temperature.

[0054] The concave cavity two 22 is provided with a square counterbore 23, and the temperature measuring block 1 is arranged in the square counterbore 23, and the top surface of the temperature measuring block 1 is exposed outside the cover plate one 2 through the square counterbore 23, so as to facilitate the full contact between the upper hot melting head and the temperature measuring block 1.

[0055] Please refer to Figure 6 and Figure 7The temperature measuring wire 4 is inserted into the temperature measuring block 1 at one end and connected with external equipment through the cover plate 2 at the other end, and the temperature of the heating device is measured by connecting the external equipment with the temperature measuring wire 4. The external equipment can be a temperature measuring meter. Specifically, the side surface of the temperature measuring block 1 is provided with a temperature measuring channel 11 which is a circular hole and does not penetrate the temperature measuring block 1. The end of the temperature measuring wire 4 is inserted into the temperature measuring channel 11. Preferably, the temperature measuring channel 11 is filled with heat-conducting silicone grease for heat conduction, which fills the gap between the temperature measuring wire 4 and the temperature measuring channel 11 and ensures the sufficiency of temperature sensing of the temperature measuring wire 4, and also discharges oxygen in the temperature measuring channel 11 to avoid oxidation of the inside of the temperature measuring block 1. The temperature measuring channel 11 and the temperature measuring wire 4 are sealed by high-temperature glue, so that the temperature measuring wire 4 is fixed in the temperature measuring channel. Specifically, a slot 12 is provided outside the temperature measuring channel 11 of the temperature measuring block 1, and the slot 12 is filled with high-temperature glue, so as to seal the opening of the temperature measuring channel 11 and fix the temperature measuring wire 4 on the temperature measuring block 1. The filling and sealing of the temperature measuring channel and the fixing mode of the temperature measuring wire include but are not limited to the above-mentioned mode.

[0056] The cover plate 3 is provided with a protruding part 31 corresponding to the position of the slot 12 of the temperature measuring channel 11. The shape of the protruding part 31 is the same as that of the slot 12, and the protruding part 31 is embedded in the slot 12. The top surface of the protruding part 31 is provided with a clamping groove 32, and the temperature measuring wire 4 passes out of the clamping groove 32, and the outer circumferential side of the temperature measuring wire 32 abuts against the clamping groove 32 and the slot 12 of the temperature measuring block 1. In this embodiment, the clamping groove 32 is a V-shaped groove, and the temperature measuring wire 4 is a cylindrical shape. Two points of the cylindrical surface of the temperature measuring wire 4 are tangent to two V-shaped surfaces of the V-shaped groove, and the vertex of the temperature measuring wire 4 is tangent to the slot 12 of the temperature measuring block, so as to completely fix the temperature measuring wire 4. The protruding part 31 plays a role of supporting and fixing the temperature measuring wire 4.

[0057] The side surface of the cover plate 2 is provided with a wire slot 24. In this embodiment, as shown in Figure 2 , the wire slot 24 passes through the top surface of the cover plate 2 upwardly, and the wire slot 24 is aligned with the temperature measuring channel 11, so as to facilitate the temperature measuring wire 4 to pass out of the wire slot 24, and the wire slot 24 is arranged on the top surface.

[0058] Embodiment 2:

[0059] The wire slot 24 is arranged on the top surface of the cover plate 2, and the temperature measuring wire 4 is easy to protrude from the cover plate 2. Over a long period of time, the temperature measuring wire 4 is easy to be abraded. As Figure 8As shown, as an improvement, in the present embodiment, the wire slot 24 is arranged on the bottom surface of the cover plate one 2, and the wire slot 24 is aligned with the temperature measuring channel 11, so that the temperature measuring wire 4 can be conveniently led out of the wire slot, and the temperature measuring channel 11 is arranged on the same side of the cavity one 21 and the cavity two 22. Arranging the wire slot 24 on the bottom surface of the cover plate one 2 can avoid the problem that the temperature measuring wire protrudes from the cover plate one 2, thereby reducing the wear of the temperature measuring wire 4. Moreover, leading the temperature measuring wire 4 out of the bottom surface of the cover plate one 2 can make the temperature measuring wire 4 spaced apart from the top surface of the cover plate one 2 by a certain distance, so that when the hot melting head contacts the cover plate one 2, the temperature measuring wire 4 will not directly contact the heated part, thereby reducing the loss of the temperature measuring wire 4 caused by heating and prolonging the service life of the temperature measuring wire. Moreover, leading the temperature measuring wire out of the bottom of the cover plate one 2 is more convenient than assembling the temperature measuring wire out of the top surface of the cover plate one 2.

[0060] The processing method of the temperature measuring device in the embodiment 1 and the embodiment 2 comprises the following steps:

[0061] S1: Injecting a heat-conducting medium into the temperature measuring channel 11 of the temperature measuring block 1. Preferably, the heat-conducting medium can be heat-conducting silicone grease, which is a paste. The heat-conducting silicone grease fills the gap between the temperature measuring wire 4 and the temperature measuring channel 11, ensures the sufficiency of temperature sensing of the temperature measuring wire 4, and also discharges oxygen in the temperature measuring channel 11 to prevent the inside of the temperature measuring block 1 from being oxidized.

[0062] S2: Inserting the temperature measuring wire 4 into the temperature measuring channel 11 from the outside. The temperature measuring wire 4 is inserted into the temperature measuring channel 11 in a straight line, so that the end of the temperature measuring wire 4 is wrapped in the heat-conducting medium. S3: Sealing the opening of the temperature measuring channel 11. The opening of the temperature measuring channel 11 is sealed using high-temperature glue. Specifically, the high-temperature glue is filled in the slot 12 outside the temperature measuring channel 11.

[0063] S4: Placing and fixing the temperature measuring block 1 connected with the temperature measuring wire 4 in the cover plate. Specifically, the temperature measuring block 1 connected with the temperature measuring wire 4 is placed in the cover plate one 2, and the top end of the temperature measuring block 1 protrudes from the cover plate one 2. The cover plate two 3 is fixed on the cover plate one 1, so that the temperature measuring block 1 is fixed, and at the same time, the temperature measuring wire 4 is embedded into the clamping groove of the cover plate two 3, so that the temperature measuring wire 4 is fixed. Specifically, the cover plate two 3 is embedded into the cavity two 22 of the cover plate one 2, and the cover plate two 3 is locked in the cavity two 22 by screws, at this time, the temperature measuring block 1 is completely pressed and fixed between the cover plate one 2 and the cover plate two 3.

[0064] Embodiment 3:

[0065] The temperature measuring wire 4 in the above two embodiments is in a straight line with the wire slot 24 and the temperature measuring channel 11. The temperature measuring wire 4 can directly pass out of the wire slot 24 in a straight line. In this structure, if the outer end of the temperature measuring wire 4 is subjected to an external force, the external force will be directly transmitted to the temperature measuring wire 4 in the temperature measuring channel 11, causing the temperature measuring wire 4 in the temperature measuring channel 11 to easily loosen, which may affect the temperature measuring result. Please refer to Figures 9 to 11 In the present embodiment, the wire slot 24 is not in a straight line with the temperature measuring channel 11, but is arranged below the temperature measuring channel 11. Therefore, after the temperature measuring wire 4 passes out of the temperature measuring channel 11 and the slot 12, it needs to be bent downward by 90° first, and then bent forward by 90° before passing out of the wire slot 24. The vertical bending part of the temperature measuring wire 4 is pressed by the cover plate 2. In this way, even if the outer end of the temperature measuring wire 4 (i.e. the temperature measuring wire in the wire slot) is shaken by an external force, the temperature measuring wire 4 in the temperature measuring channel 11 will not loosen, which can further ensure the accuracy of the temperature measuring result.

[0066] In order to make the temperature measuring wire more fixed, a positioning hole 25 perpendicular to the wire slot 24 and a positioning member (not shown) matching the positioning hole 25 are further arranged on the bottom surface of the cover plate 2. The positioning hole 25 is in communication with the wire slot 24, and the positioning member passes through the positioning hole 25 to press the temperature measuring wire 4 tightly, so that the temperature measuring wire 4 is more fixed and it is difficult to loosen even if subjected to an external force. In the present scheme, the positioning hole 25 can be a threaded hole, and the positioning member can be a screw.

[0067] A containing groove 26 is arranged on the side surface of the cover plate 2, and the outlet of the wire slot 24 is located in the containing groove 26. After the temperature measuring wire 4 passes out of the wire slot 24, the remaining temperature measuring wire can be embedded into the containing groove 26, which is convenient for storage and guidance, and avoids external objects from touching the temperature measuring wire 4.

[0068] A calibration groove 27 is arranged on the top surface of the cover plate 2, which forms a rectangle and is used to calibrate the position of the heating device (such as the upper hot melting head and the lower hot melting head). Specifically, the size of the calibration groove 27 is consistent with the peripheral size of the upper hot melting head. After the present temperature measuring device is placed on the lower hot melting head, if all the four edge lines of the calibration groove 27 are exposed when the upper hot melting head is pressed down, it indicates that the position of the upper hot melting head is correct. If some edge line of the calibration groove 27 is covered when the upper hot melting head is pressed down, it indicates that the position of the upper hot melting head is not accurate.

[0069] It can be understood that, whether the cover plate is detachable or integrally formed, the containing groove 26 and the calibration groove 27 can be selectively arranged on the cover plate, that is, the containing groove 26 and the calibration groove 27 can be adaptively adjusted according to the structure of the cover plate. Alternatively, the containing groove 26 can surround the cover plate or be arranged on one side of the cover plate.

[0070] The processing method of the temperature measuring device in the embodiment 3 includes the following steps:

[0071] S1: inject a heat-conducting medium into the temperature measuring channel 11 of the temperature measuring block 1, preferably, the heat-conducting medium can be heat-conducting silicone grease, which is a paste. The heat-conducting silicone grease fills the gap between the temperature measuring wire 4 and the temperature measuring channel 11, ensures the sufficiency of temperature sensing of the temperature measuring wire 4, and also discharges oxygen in the temperature measuring channel 11 to prevent the inside of the temperature measuring block 1 from being oxidized.

[0072] S2: insert the temperature measuring wire 4 into the temperature measuring channel 11 from the outside, and insert the temperature measuring wire 4 into the temperature measuring channel 11 after bending, so that the end of the temperature measuring wire 4 is wrapped in the heat-conducting medium. S3: place and fix the temperature measuring block 1 connected with the temperature measuring wire 4 in the cover plate. Specifically, place the temperature measuring block 1 connected with the temperature measuring wire 4 in the cover plate 2, and the top end of the temperature measuring block 1 protrudes from the cover plate 2. Fix the cover plate 3 on the cover plate 1, so that the temperature measuring block 1 is fixed, and at the same time, the temperature measuring wire 4 is embedded into the clamping groove of the cover plate 3, so that the temperature measuring wire 4 is fixed. Specifically, the cover plate 3 is embedded into the recess cavity 22 of the cover plate 2, and the cover plate 3 is locked in the recess cavity 22 by screws, at this time, the temperature measuring block 1 is completely pressed and fixed between the cover plate 2 and the cover plate 3.

[0073] The application also provides a temperature measuring method using the temperature measuring device as described above, comprising the following steps:

[0074] L1: cover the temperature measuring device on the heating device, so that the top end of the heating device is embedded into the recess cavity 21.

[0075] L2: the heating device starts to be powered on, the coil inside the heating device generates a magnetic field, thereby generating eddy current and starting to heat.

[0076] L3: the temperature measuring block 1 is heated by the heating device, and the external equipment displays the current measured temperature value of the temperature measuring block 1.

[0077] L4: compare the temperature displayed by the external equipment with the temperature of the heating device itself, so as to obtain the heating temperature control accuracy of the heating device at this time, and thereby measure whether the temperature of the heating device when working is the required temperature for product processing.

[0078] L5: if the measured temperature is the expected temperature, the temperature measuring device can be removed for product processing, and if the temperature does not reach the expected temperature, the equipment is adjusted and the above steps are repeated for testing until it is qualified.

[0079] The temperature measuring device is mounted on the top of the lower hot melting head 100 in advance, so that the top of the lower hot melting head 100 is embedded into the cavity 21 of the cover plate 2, and the upper hot melting head is located directly above the temperature measuring device. During temperature measurement, the upper hot melting head is in contact with the top surface of the temperature measuring block 1. After being powered on, the coil inside the hot melting head generates a magnetic field, generates eddy current, and makes the copper temperature measuring block 1 generate heat. The temperature measuring line 4 measures the temperature of the temperature measuring block 1, and displays the measured temperature value through an external device. By comparing the temperature of the external device with the temperature reflected by the electromagnetic hot melting head to the program (that is, the temperature detected by the hot melting head itself), the heating temperature control accuracy of the electromagnetic hot melting head at this time can be obtained, so as to measure whether the temperature of the hot melting head during work is the required temperature for product processing.

[0080] The temperature measured in this way is closest to the processing temperature of the product, because the temperature measuring device is used instead of the product. The temperature measuring device is located on the outer periphery of the end of the hot melting head, far away from the internal coil, and the temperature measuring block 1 is protected by the cover plate made of Teflon material, which greatly reduces the interference of the magnetic field generated by the internal coil of the hot melting head during heating on the temperature measuring process. Moreover, the position of the temperature measuring point does not change, thereby ensuring the stability and authenticity of temperature measurement.

[0081] After the expected product processing temperature is measured by using the temperature measuring device, the temperature measuring device can be removed, and then the product processing can be started. If the measured temperature does not reach the expected temperature, the equipment needs to be adjusted and tested again until it is qualified. In this way, the required temperature for product processing is measured in advance, and then the product processing is carried out, which can ensure the hot melting quality of the product and improve the yield of the product.

[0082] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature measuring device, which measures the temperature of a heating device by connecting to an external device via a temperature measuring wire, characterized in that, include: The device includes a temperature measuring block, a cover plate, and a temperature measuring wire. The temperature measuring block is embedded in the cover plate with its top end protruding from the cover plate. One end of the temperature measuring wire is inserted into the temperature measuring block, and the other end is connected to an external device. The cover plate is detachably connected to the heating device. The side of the temperature measuring block is provided with a temperature measuring channel for inserting a temperature measuring wire, and the outside of the temperature measuring channel is provided with a slot. The temperature measurement channel is filled with thermally conductive silicone grease, and the temperature measurement wire is inserted into the thermally conductive silicone grease. The groove is sealed by filling it with high-temperature adhesive. The cover plate has a groove for the temperature measuring wire to pass through, and the groove is located on the top or bottom surface of the cover plate. The wire groove is located below the temperature measuring channel, and the temperature measuring wire is bent and passes through the wire groove; The bottom surface of the cover plate is provided with a positioning hole perpendicular to the wire groove and a positioning component that matches the positioning hole. The positioning hole is connected to the wire groove, and the positioning component passes through the positioning hole to press the temperature measuring wire tightly. The cover plate includes a cover plate one and a cover plate two. The cover plate two is located at the bottom of the cover plate one. The cover plate two is detachably connected to the cover plate one. The cover plate two fixes the temperature measuring block on the cover plate one. The bottom surface of the cover plate one is provided with a recessed cavity one for accommodating the end of the heating device and a recessed cavity two for accommodating the cover plate two. The recessed cavity two is also provided with a countersunk hole for accommodating the temperature measuring block. The second cover plate is provided with a protrusion corresponding to the slot. When the second cover plate is connected to the first cover plate, the protrusion is embedded in the slot. The top surface of the protrusion is provided with a slot, the temperature measuring wire passes through the slot, and the outer periphery of the temperature measuring wire abuts against the slot and the groove respectively. The top surface of the cover plate is provided with a calibration groove, and the side surface of the cover plate is provided with a receiving groove for embedding the temperature measuring wire. Both the first cover plate and the second cover plate are made of Teflon.

2. A method for processing the temperature measuring device according to claim 1, characterized in that, Includes the following steps: S1: Inject heat-conducting medium into the temperature measuring channel of the temperature measuring block; S2: Insert the temperature measuring wire from the outside into the temperature measuring channel, so that the end of the temperature measuring wire is wrapped in the heat-conducting medium; S3: Insert and fix the temperature measuring block connected to the temperature measuring wire into the cover plate.

3. The processing method of the temperature measuring device according to claim 2, characterized in that, After step S2, the opening of the temperature measurement channel is sealed.

4. A temperature measurement method using the temperature measuring device according to claim 1, characterized in that, Includes the following steps: L1: Cover the heating device with the temperature measuring device; L2: The heating device is powered on, and the coil inside the heating device generates a magnetic field, which in turn generates eddy currents and begins heating; L3: The temperature measuring block is heated by the heating device, and the external device displays the currently measured temperature value of the temperature measuring block; L4: By comparing the temperature displayed by the external device with the temperature of the heating device itself, the heating temperature control accuracy of the heating device can be determined, thereby measuring whether the temperature of the heating device during operation is the expected temperature for product processing. L5: If the measured temperature is the expected temperature, the temperature measuring device can be removed and the product can be processed. If the measured temperature does not reach the expected temperature, the above steps should be repeated after adjusting the equipment until it is qualified.

Images