Multi-point temperature measuring device of glass molding press
By setting multiple thermocouple mounting holes and extension rods on the glass molding machine, multi-point precise temperature measurement of the upper and lower heating plates of the aspherical glass molding machine is achieved, which solves the problem of insufficient temperature measurement accuracy in traditional methods and improves the accuracy of temperature compensation calibration and product quality.
Patent Information
- Application Number
- CN202520355786.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Traditional temperature measurement methods cannot accurately determine the temperature difference within the heating plate range of an aspherical glass molding machine, resulting in insufficient accuracy of temperature compensation calibration and affecting product quality.
By designing a temperature measuring device that includes multiple thermoelectric devices for a glass molding machine, employing multiple thermocouple mounting hole groups for a glass molding machine, and using a multi-point temperature measuring device for a glass molding machine through the thermocouple mounting hole groups, including a transition ring, an upper temperature measuring plate, and a lower temperature measuring plate, made of tungsten steel, and setting multiple thermocouple mounting hole groups, the thermocouples are accurately positioned to the corresponding measurement positions using extension rods, thereby achieving multi-point accurate temperature measurement.
It significantly improves the accuracy and uniformity of temperature measurement, ensures the accuracy of temperature compensation calibration, eliminates temperature differences within the heating plate range, and improves product quality.
Smart Images
Figure CN223727286U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of thermocouple temperature measurement, and particularly relates to a multi-point temperature measuring device for a glass mold pressing machine. BACKGROUND
[0002] In the production process of an aspherical glass mold pressing machine, the temperature uniformity of the upper and lower heating plates has an important influence on product quality. In order to ensure the temperature uniformity, accurate temperature measurement of the heating plate is required, and temperature compensation adjustment of the heating pipe is made according to the measurement data. The traditional temperature measurement method usually uses one thermocouple on the upper and lower sides, and multi-point measurement is performed by observing the position of the temperature measuring head on the heating plate with the naked eye. However, this method has a rough measurement process and cannot accurately judge the temperature difference in the range of the heating plate, resulting in insufficient accuracy of temperature compensation adjustment, which further affects the product quality. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the problem of insufficient accuracy of temperature compensation adjustment caused by measuring the temperature difference with one thermocouple on the upper and lower sides in the prior art, the application provides a multi-point temperature measuring device for a glass mold pressing machine.
[0004] The application is implemented by the following technical solutions:
[0005] A multi-point temperature measuring device for a glass mold pressing machine, comprising a transition ring, an upper temperature measuring plate and a lower temperature measuring plate connected to the upper and lower sides of the transition ring respectively, and an extension rod penetrating through the transition ring in the horizontal direction and providing a thermocouple to be arranged therein, a plurality of mounting holes for mounting the thermocouples are arranged on the upper temperature measuring plate and the lower temperature measuring plate, the thermocouples are connected to the upper heating plate of the mold pressing machine through the extension rod, and the thermocouples are connected to the lower heating plate of the mold pressing machine.
[0006] The mounting hole group comprises a center hole located at the center of the upper temperature measuring plate or the lower temperature measuring plate, and a plurality of circumferential holes uniformly distributed in a circle around the center hole on the upper temperature measuring plate or the lower temperature measuring plate.
[0007] The multi-point temperature measuring device for a glass mold pressing machine comprises four circumferential holes, and the included angle formed by the connecting lines of adjacent circumferential holes and the center hole is 90°.
[0008] The extension rod is marked with a plurality of position marks, and each position mark corresponds to the number of stations of the mold pressing machine.
[0009] The upper temperature measuring plate and the lower temperature measuring plate are made of tungsten steel material.
[0010] The parallelism between the upper and lower surfaces of the upper temperature measuring plate and the lower temperature measuring plate is less than 0.005 mm.
[0011] The transition ring is detachably connected to the upper temperature measuring plate and the lower temperature measuring plate by screws.
[0012] The transition ring is detachably connected to the upper temperature measuring plate and the lower temperature measuring plate by screws.
[0013] The surface of the upper temperature measuring plate and the lower temperature measuring plate is provided with a DLC coating.
[0014] The surface of the upper temperature measuring plate and the lower temperature measuring plate is provided with a DLC coating.
[0015] Compared with the prior art, the present application has the following advantages:
[0016] The present application is a multi-point temperature measuring device for a glass mold pressing machine, which comprises an upper temperature measuring plate, a lower temperature measuring plate, a plurality of thermocouple mounting hole groups arranged on the upper temperature measuring plate and the lower temperature measuring plate, and an extension rod. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Figure 1 is a three-dimensional view in the embodiments of the present application;
[0019] Figure 2 is a top view of Figure 1 ;
[0020] Figure 3 is a sectional view of Figure 2 at A-A;
[0021] Figure 4 is Figure 2 is a cross-sectional view at B-B in FIG. DETAILED DESCRIPTION
[0022] In order to make the technical problems and beneficial effects of the technical solutions of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.
[0023] Referring to Figures 1 to 4 A multi-point temperature measuring device for a glass molding machine comprises a transition ring 1, an upper temperature measuring plate 2 and a lower temperature measuring plate 3 connected to the upper and lower sides of the transition ring 1 respectively, and an extension rod 4 penetrating through the transition ring 1 in the horizontal direction and providing a space for a thermocouple to be arranged inside, a plurality of mounting hole groups 5 for mounting a plurality of thermocouples are arranged on the upper temperature measuring plate 2 and the lower temperature measuring plate 3, and the thermocouples are connected to the upper heating plate of the molding machine and the lower heating plate of the molding machine respectively through the extension rod 4.
[0024] In this embodiment, the upper temperature measuring plate and the lower temperature measuring plate are special tools for measuring the temperature distribution in a reflow soldering furnace or other heat treatment equipment. They are usually made of materials with good thermal conductivity, such as ceramics or metals, and are equipped with multiple temperature sensors, such as thermocouples, to measure the temperature at different positions. The transition ring is a ceramic ring used to measure the cumulative thermal effect in the furnace. It is usually made of ceramic materials with good thermal stability and mechanical strength, and the corresponding specifications are selected according to the maximum temperature of the furnace: the transition ring records the cumulative thermal effect in the furnace through the thermal expansion properties of its material, and its size changes after being placed in the furnace and undergoing the heating process, and this change is proportional to the cumulative thermal effect in the furnace. By measuring the size change of the transition ring, the cumulative thermal effect in the furnace can be indirectly evaluated.
[0025] By arranging multiple thermocouple mounting hole groups on the upper temperature measuring plate and the lower temperature measuring plate, and using the extension rod to accurately position the thermocouples to the corresponding measurement positions, the multi-point accurate temperature measurement of the upper and lower heating plates of the aspherical glass molding machine is realized. Compared with the traditional single thermocouple measurement method, this device can significantly improve the accuracy and uniformity of temperature measurement, thereby ensuring the accuracy of temperature compensation adjustment and effectively eliminating the temperature difference within the range of the heating plate.
[0026] Further, as a preferred embodiment of the present solution but not limited, the mounting hole group 5 comprises a center hole 51 located at the center of the upper temperature measuring plate 2 or the lower temperature measuring plate 3, and a plurality of circumferential holes 52 uniformly distributed in a circle around the center hole 51 on the upper temperature measuring plate 2 or the lower temperature measuring plate 3.
[0027] In this embodiment, the layout ensures the symmetrical distribution of temperature sensors on the temperature measuring plate, so that the measurement results can more accurately reflect the temperature field distribution of the entire temperature measuring plate, improving the accuracy and reliability of temperature measurement. Secondly, by installing temperature sensors in the center hole 51 and the circumferential hole 52, simultaneous measurement of temperature at different positions of the temperature measuring plate can be achieved, thereby obtaining more comprehensive temperature distribution data, which helps engineers better understand the thermal field situation in the furnace. In addition, this design also provides flexibility, allowing different numbers and positions of circumferential holes 52 to be selected according to specific needs to adapt to different measurement requirements and furnace structures. In terms of working principle, when the temperature sensors are installed in these holes, they will monitor and record the temperature changes at the corresponding positions in real time, transmit this information to the analysis software through the data acquisition system for processing and display, and compensate and adjust the temperature of the heating tube through the temperature compensation module, improving the temperature uniformity of the upper and lower heating plates.
[0028] Further, as a preferred embodiment of the present scheme but not limited, four circumferential holes 52 are included, and the included angle formed by the circumferential holes 52 adjacent to the center hole 51 is 90°.
[0029] In this embodiment, symmetrical distribution ensures uniform coverage of temperature sensors on the temperature measuring plate, so that the measurement results can more accurately reflect the temperature field distribution of the entire temperature measuring plate, especially the temperature changes in the four quadrants. Secondly, the 90° angle setting allows the temperature sensors to be distributed at regular intervals on the temperature measuring plate, thereby providing systematic measurement of the temperature field in the furnace.
[0030] Further, as a preferred embodiment of the present scheme but not limited, a plurality of position marks 41 are engraved on the extension rod 4, and each position mark 41 corresponds to a die press station number.
[0031] In this embodiment, the position marks provide intuitive reference, allowing the operator to quickly and accurately determine the position of each die press station, thereby ensuring that the temperature measuring device can accurately measure the temperature at different stations of the die press, improving the efficiency and accuracy of the operation. Position marks can be identified in sequence, such as numbers and letters, avoiding repeated measurement or missed measurement due to station recognition errors, significantly improving work efficiency.
[0032] Further, as a preferred embodiment of the present scheme but not limited, the upper temperature measuring plate 2 and the lower temperature measuring plate 3 are made of tungsten steel material.
[0033] In this embodiment, the tungsten steel is a kind of hard alloy, which has high hardness, high wear resistance, high elastic modulus, high compressive strength and good chemical stability, so that the temperature measuring plate can maintain stable performance in high temperature environment and is not easy to deform or damage, thereby ensuring the accuracy and reliability of temperature measurement. The low thermal expansion coefficient of tungsten steel makes it have good dimensional stability when the temperature changes, further improving the temperature measurement accuracy. And the high hardness and wear resistance of tungsten steel can effectively resist mechanical impact and wear that may be encountered during temperature measurement, prolonging the service life of the temperature measuring plate. At the same time, its good heat resistance and chemical stability enable it to work stably in high temperature and corrosive environment, ensuring the long-term reliable operation of the temperature measuring device under high temperature working condition of the molding machine.
[0034] Further, as a preferred embodiment of the present scheme but not limited, the parallelism of the upper and lower surfaces of the upper temperature measuring plate 2 and the lower temperature measuring plate 3 is less than 0.005 mm.
[0035] In this embodiment, after the device is processed, the whole set is installed and then matched for grinding, so as to ensure that the parallelism of the upper and lower surfaces is within 0.005 mm, and ensure the accuracy of temperature measurement. The high-precision parallelism ensures that all temperature sensor probes can uniformly and consistently contact the heating plate of the molding machine, thereby eliminating the temperature measurement difference caused by poor or uneven contact. Such consistency not only improves the accuracy of temperature data, but also enhances the repeatability and reliability of measurement results, so that engineers can more accurately evaluate and control the temperature field of the molding machine. In terms of working principle, when the surface height of the temperature measuring plate is consistent, the temperature sensor can contact the heating plate with the same pressure and contact area, ensuring uniform heat transfer and accurate temperature perception. If the parallelism is insufficient, some probes may not fully contact the heating plate, resulting in lower measured temperature, while other normally contacted probes may measure higher temperature, thereby producing significant measurement error.
[0036] Further, as a preferred embodiment of the present scheme but not limited, the transition ring 1 is detachably connected with the upper temperature measuring plate 2 and the lower temperature measuring plate 3 through screws respectively.
[0037] In this embodiment, the user can easily install, disassemble and replace the transition ring as needed without the need for large-scale adjustment or downtime of the entire temperature measurement system, improving the maintainability and scalability of the system, making it more convenient for regular inspection, calibration or replacement of the transition ring; At the same time, this modular design also facilitates the testing and comparison of different specifications or types of transition rings to optimize temperature measurement and control strategies. Screw connection provides reliable mechanical fixation, ensuring the close fit and heat conduction efficiency between the transition ring and the temperature measurement plate, thereby ensuring the accuracy and stability of temperature measurement. In addition, detachable connection also facilitates individual cleaning, repair or upgrade of the transition ring or temperature measurement plate when needed without affecting other components. Other possible embodiments include the use of different types of fasteners such as buckles, magnetic attraction, etc. to replace screw connection to meet the needs of quick disassembly or tool-free operation in specific applications.
[0038] Further, as a preferred embodiment of the present scheme but not limited, the transition ring 1 is provided with an opening 11 for the extension rod 4 to pass through, and a second positioning hole 12 vertically corresponding to the opening 11, the upper temperature measurement plate 2 and the lower temperature measurement plate 3 are provided with a first positioning hole 21 corresponding to the second positioning hole 12, and a fastener passes through the first positioning hole 21 and the second positioning hole 12 to connect with the extension rod 4 to fix the extension rod 4 on the transition ring 1.
[0039] In this embodiment, the precise positioning and stable installation of the extension rod 4 are ensured to prevent it from shifting or shaking during use, thereby improving the stability and reliability of the entire temperature measurement system. Secondly, through the fastener connection, not only the mechanical strength between the extension rod 4 and the transition ring 1 is enhanced, but also the extension rod 4 is facilitated to be disassembled and replaced when needed, improving the maintainability and flexibility of the system.
[0040] Further, as a preferred embodiment of the present scheme but not limited, the surface of the upper temperature measurement plate 2 and the lower temperature measurement plate 3 is provided with a DLC coating 22.
[0041] In this embodiment, it can effectively resist mechanical wear, chemical corrosion and oxidation in high temperature environment. This protective layer not only prolongs the service life of the temperature measurement plate, but also ensures its stable physical and mechanical properties during long-term use, thereby improving the reliability and accuracy of temperature measurement.
[0042] Further, as a preferred embodiment of the present scheme but not limited, the extension rod 4 is of hollow structure. In this embodiment, the hollow structure can accommodate the lead wire of the thermocouple or the connecting wire of other sensors, ensuring the stability and reliability of signal transmission.
[0043] Further, as a preferred embodiment of the present scheme but not limited, it further comprises a plurality of temperature transmitters connected with the power supply, the input end of the plurality of temperature transmitters is connected with a thermocouple connected with the measured object, and the output end of the plurality of temperature transmitters is connected with a data acquisition module connected with the temperature compensation module.
[0044] In the embodiment, the thermocouple transmits the sensed temperature signal to the temperature transmitter, and then the temperature data is collected by the data acquisition module and sent to the temperature compensation module for reading of the temperature signal to perform temperature compensation adjustment on the heating tube.
[0045] The working principle of the embodiment is as follows:
[0046] The multi-point temperature measuring device of the glass molding machine of the present application realizes the multi-point accurate temperature measurement of the upper and lower heating plates of the aspheric glass molding machine by setting a plurality of thermocouple mounting hole groups on the upper and lower temperature measuring plates and accurately positioning the thermocouples to the corresponding measurement positions by using the extension rods. Compared with the traditional single thermocouple measurement method, the device can significantly improve the accuracy and uniformity of temperature measurement, thereby ensuring the accuracy of temperature compensation adjustment and effectively eliminating the temperature difference in the range of the heating plate.
[0047] The above is an embodiment provided in combination with specific content, and it is not intended that the specific implementation of the present application is limited to these descriptions. Any similar method structure or technical deduction or replacement made on the basis of the concept of the present application should be considered as the protection scope of the present application.
Claims
1. A multi-point temperature measuring device for a glass molding machine, characterized in that, The temperature measuring plate comprises a transition ring (1), an upper temperature measuring plate (2) and a lower temperature measuring plate (3) connected to the upper and lower sides of the transition ring (1) respectively, and an extension rod (4) penetrating through the transition ring (1) in the horizontal direction and providing a space for a thermocouple.
2. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The installation hole group (5) comprises a center hole (51) located at the center of the upper temperature measuring plate (2) or the lower temperature measuring plate (3), and a circumferential hole (52) located on the upper temperature measuring plate (2) or the lower temperature measuring plate (3) and uniformly distributed around the center hole (51).
3. The multi-point temperature measurement device for a glass press according to claim 2, wherein, The extension rod (4) is engraved with a plurality of position marks (41), and each position mark (41) corresponds to the number of stations of the molding machine.
4. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The upper temperature measuring plate (2) and the lower temperature measuring plate (3) are made of tungsten steel material.
5. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The parallelism of the upper and lower surfaces of the upper temperature measuring plate (2) and the lower temperature measuring plate (3) is less than 0.005mm.
6. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The transition ring (1) is detachably connected to the upper temperature measuring plate (2) and the lower temperature measuring plate (3) by screws.
7. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The transition ring (1) is provided with an opening (11) for the extension rod (4) to pass through, and a second positioning hole (12) vertically corresponding to the opening (11) is provided, and the upper temperature measuring plate (2) and the lower temperature measuring plate (3) are provided with a first positioning hole (21) corresponding to the second positioning hole (12), and a fastener passes through the first positioning hole (21) and the second positioning hole (12) and is connected with the extension rod (4) to fix the extension rod (4) on the transition ring (1).
8. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The surface of the upper temperature measuring plate (2) and the lower temperature measuring plate (3) is provided with a DLC coating (22).
9. The multi-point temperature measurement device for a glass press according to claim 1, wherein, The extension rod (4) is a hollow structure.
10. The multi-point temperature measurement device for a glass press according to claim 1, wherein,