A semi-solid temperature measurement pulping structure and temperature measurement method thereof

Abstract

The present invention provides a semi-solid temperature measurement pulping structure, including a mechanical arm, a stirring structure is provided on one side of the mechanical arm, the stirring structure includes a rotating shaft, one end of the rotating shaft is fixedly connected to a stirring rod, and a plurality of groups of temperature measurement structures that can be raised and lowered are provided around the stirring rod. The present invention adopts multiple temperature sensors to measure different positions of the molten metal, including the high position, the middle position and the low position of the molten metal, to avoid a large temperature measurement error caused by a single position, and further improve the temperature measurement accuracy; and adopts a lifting temperature measurement structure, the temperature sensors are sequentially extended into the molten metal for temperature measurement, and the interval time is used to give time to the previous group of temperature measurement sensors, so that the temperature measurement is more stable, and finally the average temperature value is obtained, which increases the accuracy of the measured temperature value.

Description

Technical Field

[0001] The invention mainly relates to the technical field of semi-solid preparation, and in particular to a semi-solid temperature measurement pulping structure and a temperature measurement method thereof. Background Art

[0002] Semi-solid metal processing is a process in which the metal is strongly stirred during the solidification process or the solidification conditions are controlled to inhibit the growth of dendrites or break up the generated dendrites, forming a suspended semi-solid slurry with an equiaxed, uniform, and fine primary phase evenly distributed in the liquid phase. This slurry still has good fluidity when the solid phase ratio reaches 60% under the action of external force.

[0003] At present, the commonly used method in the preparation process of semi-solid slurry is to use a stirring rod for mechanical stirring. Since the temperature control of the semi-solid slurry is very important, we need to measure the temperature of the slurry.

[0004] However, the existing temperature measurement method generally involves fixing a temperature sensor on the outside of the stirring rod, and this method of temperature measurement has a large error. Summary of the invention

[0005] Problems Solved by the Invention

[0006] The present invention mainly provides a semi-solid temperature measurement pulping structure and a temperature measurement method thereof, so as to solve the technical problem that the existing temperature measurement method mentioned in the above background technology has large errors.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a semi-solid temperature measurement and pulping structure, including a mechanical arm, a stirring structure is provided on one side of the mechanical arm, the stirring structure includes a rotating shaft, one end of the rotating shaft is fixedly connected to a stirring rod, and a plurality of groups of liftable temperature measurement structures are provided around the stirring rod.

[0009] Furthermore, each group of the temperature measurement structures includes at least two temperature measurement sensors, and a lifting unit is provided on the top of each temperature measurement sensor.

[0010] Furthermore, each lifting unit includes a lifting control component, a driving end of the lifting control component is provided with a telescopic motion component, the other end of the telescopic motion component is detachably connected to the installation component, and the other end of the installation component is detachably connected to the temperature sensor.

[0011] Furthermore, the lifting control component and the telescopic motion component are both arranged in a high-temperature protection cover.

[0012] Furthermore, a cavity is provided inside the stirring rod, and a cooling structure is provided inside the cavity.

[0013] Furthermore, the cooling structure is a gas-liquid cooling structure.

[0014] A semi-solid pulping temperature measurement method, wherein a mechanical arm drives a stirring structure to be placed in a crucible containing molten metal, and the driving structure drives a rotating shaft to rotate, thereby causing a stirring rod to start rotating to stir the molten metal. While stirring, a lifting unit sequentially drives down multiple temperature measuring structures, and multiple temperature measuring sensors corresponding to the same temperature measuring structure respectively measure the temperatures at different positions of the molten metal, and an average value is calculated based on the temperatures measured by multiple groups of the temperature measuring structures.

[0015] Furthermore, after stirring for a certain period of time, one set of the temperature measuring structures is lowered first, and then another set of the temperature measuring structures is lowered after an interval of 4-10 seconds.

[0016] Furthermore, two groups of temperature measuring structures are arranged outside the stirring rod, and each group of the temperature measuring structures includes two temperature measuring sensors. The two temperature measuring sensors corresponding to the first group of the temperature measuring structures respectively measure the high and low positions of the molten metal, and the two temperature measuring sensors corresponding to the second group of the temperature measuring structures respectively measure the middle and low positions of the molten metal. Finally, a total of four temperature values ​​of the high, middle and low positions of the molten metal are obtained, and the average value is calculated using the four measured values.

[0017] Beneficial Effects

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] (1) Since the high and low temperatures of the molten metal are different, the low temperature of the molten metal will be higher than the high temperature. Therefore, the present invention uses multiple temperature sensors to measure different positions of the molten metal, including the high, middle and low positions of the molten metal, to avoid a large temperature measurement error caused by a single position, thereby further improving the temperature measurement accuracy.

[0020] (2) Since the stirring structure has a cooling effect on the metal melt, the temperature sensor rises from low temperature to high temperature quickly, but changes from high temperature to low temperature slowly, which causes measurement errors. Therefore, the present invention adopts a lifting temperature measurement structure, and extends the temperature sensors into the metal melt in sequence for temperature measurement. The interval time is used to give the previous group of temperature sensors time, making the temperature measurement more stable. Finally, the average temperature value is obtained, which increases the accuracy of the measured temperature value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a plan view schematic diagram of the present invention;

[0023] Figure 3 It is a left side view of the present invention;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the stirring rod of the present invention.

[0025] Reference numerals

[0026] 10-mechanical arm; 20-stirring structure; 201-rotating shaft; 202-stirring rod; 203-high temperature protection cover; 204-driving motor; 205-driving wheel; 206-driving link synchronous belt; 207-driven wheel;

[0027] 30-temperature measurement structure; 301-temperature measurement sensor; 302-lifting control component; 303-telescopic motion component; 304-installation component;

[0028] 40-gas-liquid cooling structure; 401-gas-liquid spray rod; 402-cooling liquid; 403-air and liquid inlet pipes; 404-circulating water flow transfer interface; 405-liquid level sensor; 50-retention box. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element; the terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] Example 1

[0033] See attached Figure 1-3A semi-solid temperature measurement pulping structure includes a mechanical arm 10, a stirring structure 20 is provided on one side of the mechanical arm 10, the stirring structure 20 includes a rotating shaft 201, one end of the rotating shaft 201 is fixedly connected to a stirring rod 202, and the characteristic is that: a plurality of groups of liftable temperature measurement structures 30 are provided outside the stirring rod 202, and the plurality of groups of temperature measurement structures 30 can be evenly arranged around the stirring rod 202, or can be evenly arranged on both sides of the stirring rod 202.

[0034] Each group of the temperature measuring structures 30 includes at least two temperature measuring sensors 301 , and a lifting unit is provided on the top of each of the temperature measuring sensors 301 .

[0035] Each lifting unit includes a lifting control component 302 , a driving end of the lifting control component 302 is provided with a telescopic motion component 303 , the other end of the telescopic motion component 303 is detachably connected to a mounting component 304 , and the other end of the mounting component 304 is detachably connected to the temperature sensor 301 .

[0036] In this embodiment, the lifting control component 302 and the telescopic motion component 303 can be a motor and a screw rod, a cylinder and a push rod, an electric telescopic rod, or other lifting structures.

[0037] The lifting control assembly 302 and the telescopic motion assembly 303 are both arranged in the high temperature protection cover 203. A cavity is arranged inside the stirring rod 202, and a cooling structure is arranged in the cavity.

[0038] In this embodiment, a driving motor 204 is further provided in the high temperature protection cover 203, and a driving end of the driving motor 204 is fixedly connected to a driving wheel 205, and the driving wheel 205 drives a driven wheel 207 to rotate through a rotating shaft driving link synchronous belt 206, and the driving wheel 206 is fixedly connected to the rotating shaft 201, and the stirring rod 202 is driven to rotate through the rotating shaft 201 to stir the metal melt, and a limiting structure is provided on the rotating shaft 201, so that the rotating shaft 201 can only rotate but cannot move;

[0039] While stirring, the lifting control component 302 drives the telescopic component 303 to extend the temperature sensor 301 into the molten metal. Two groups of the temperature measuring structures 30 are arranged outside the stirring rod 202. Each group of the temperature measuring structures 30 includes two temperature measuring sensors 301. The two temperature measuring sensors 301 corresponding to the first group of the temperature measuring structures 30 respectively measure the high position and the low position of the molten metal. The two temperature measuring sensors 301 corresponding to the second group of the temperature measuring structures 30 respectively measure the middle position and the low position of the molten metal. Finally, four temperature values ​​of the high position (1), the middle position (2) and the low position (1) of the molten metal are obtained, and the average value is calculated using the four measured values. By adopting this structure and method, the temperature at different positions of the molten metal is measured, thereby improving the temperature measurement accuracy.

[0040] Example 2

[0041] A semi-solid pulping temperature measurement method, wherein a mechanical arm 10 drives a stirring structure 20 to be placed in a crucible containing a metal melt, and the driving structure drives a rotating shaft 201 to rotate, thereby causing a stirring rod 202 to start rotating to stir the metal melt. After stirring for a certain period of time, a group of temperature measuring structures 30 is first lowered, and a plurality of temperature measuring sensors 301 corresponding to the same temperature measuring structure 30 respectively measure the temperature at different positions of the metal melt, that is, the two temperature measuring sensors 301 corresponding to the first group of temperature measuring structures 30 respectively measure the high position and the low position of the metal melt, and then the second group of temperature measuring structures 30 is lowered at an interval of 4-10s, and the two temperature measuring sensors 31 corresponding to the second group of temperature measuring structures 30 respectively measure the middle position and the low position of the metal melt, and finally a total of four temperature values ​​of the high position, the middle position and the low position of the metal melt are obtained, and the average value is calculated using the four measured values.

[0042] In this embodiment, multiple temperature sensors 301 are used to penetrate into different heights of the molten metal, which solves the problem of different temperatures at different positions of the molten metal, thereby further improving the accuracy of the semi-solid temperature measurement technology.

[0043] In this embodiment, since the stirring structure 20 has a cooling effect on the metal melt, for example, the temperature of the metal melt drops from 640°C to 630°C, and the temperature sensor 301 rises from a low temperature to a high temperature (640°C) at a faster rate when measuring, and drops from a high temperature of 640°C to 630°C at a slower rate, resulting in a temperature difference between the temperature sensor 301 and the temperature of the metal melt, thereby affecting the temperature measurement result. Temperature is very important for the preparation of semi-solid state. In the present invention, the temperature sensors are sequentially inserted into the metal melt for temperature measurement, and the interval time is used to give the previous group of temperature sensors time, so that the temperature measurement is more stable and the accuracy of the temperature measurement value is improved.

[0044] Example 3

[0045] See attached Figure 2-4 In the present embodiment, the cooling structure inside the stirring rod 202 is an air-liquid cooling structure 40, and the air-liquid cooling structure 40 includes a cooling air-liquid spray rod 401, and the air-liquid spray rod 401 is inserted into the coolant 402. The entrance of the air-liquid spray rod 401 is connected to the internal channel of the rotating shaft 201, and the other end of the internal channel of the rotating shaft 201 is provided with an air inlet and liquid inlet pipe 403. At the same time, a circulating water flow transfer interface 404 is provided on one side of the top of the stirring rod 202, and a retention box 50 is provided at the end of the circulating water flow transfer interface 404. The retention box 50 condenses and collects the evaporated coolant 402, and the accumulated coolant 402 is recycled for secondary use; a liquid level sensor 405 is also provided in the stirring rod 202, and the liquid level sensor 405 is connected to the control end of the air inlet and liquid inlet pipe 403. When the liquid level sensor 405 senses that the liquid level of the coolant 402 is lower than the set threshold, the control end replenishes the stirring rod 202.

[0046] In this embodiment, a temperature sensor can be set in the stirring rod 202, and the temperature sensor transmits the sensing signal to the control end. The air inlet and liquid inlet pipes 403 are connected to the air cooling system and the coolant system. The control end controls the cold air to enter the gas-liquid injection rod 401 through the air inlet and liquid inlet pipes 403. The gas-liquid injection rod 401 is evenly provided with multiple through holes around it. The cold air enters the coolant 402 to cool the coolant 402, thereby achieving temperature control of the coolant 402, and further realizing the cooling of the stirring rod 202 by the coolant 402.

[0047] In this embodiment, the gas-liquid cooling structure 40 on the stirring rod 202 cools the stirring rod 202, and the stirring rod 202 stirs the metal melt to cool it down. The temperature measuring structure 30 sequentially measures the actual temperature of the metal melt, and finally calculates the average value based on the measurement results to obtain the temperature value.

[0048] In summary, the present invention uses multiple temperature sensors to measure different positions of the molten metal, including the high position, middle position and low position of the molten metal, so as to avoid a large temperature measurement error caused by a single position and further improve the temperature measurement accuracy;

[0049] The present invention adopts a lifting temperature measurement structure, and extends the temperature measuring sensors into the metal melt in sequence for temperature measurement. The interval time is used to give time to the previous group of temperature measuring sensors, so that the temperature measurement is more stable, and finally the average temperature value is obtained, which increases the accuracy of the measured temperature value.

[0050] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A semi-solid temperature measurement pulping structure, comprising a mechanical arm (10), a stirring structure (20) being provided on one side of the mechanical arm (10), the stirring structure (20) comprising a rotating shaft (201), one end of the rotating shaft (201) being fixedly connected to a stirring rod (202), characterized in that: The stirring rod (202) is provided with a plurality of groups of temperature measuring structures (30) that can be raised and lowered outside. Each group of the temperature measurement structures (30) comprises at least two temperature measurement sensors (301), and a lifting unit is provided on the top of each of the temperature measurement sensors (301); Each lifting unit comprises a lifting control component (302); a driving end of the lifting control component (302) is provided with a telescopic motion component (303); the other end of the telescopic motion component (303) is detachably connected to a mounting component (304); and the other end of the mounting component (304) is detachably connected to the temperature sensor (301); The lifting control component (302) and the telescopic motion component (303) are both arranged in a high-temperature protection cover (203); A cavity is provided inside the stirring rod (202), and a cooling structure is provided inside the cavity; The cooling structure is a gas-liquid cooling structure (40).

2. A semi-solid pulping temperature measurement method, based on the semi-solid temperature measurement pulping structure according to claim 1, characterized in that: The mechanical arm (10) drives the stirring structure (20) to be placed in a crucible containing molten metal, and the driving structure drives the rotating shaft (201) to rotate, thereby causing the stirring rod (202) to start rotating and stirring the molten metal. While stirring, the lifting unit sequentially drives the multiple temperature measuring structures (30) to be lowered, and the multiple temperature measuring sensors (301) corresponding to the same temperature measuring structure (30) respectively measure the temperatures at different positions of the molten metal, and an average value is calculated based on the temperatures measured by the multiple groups of temperature measuring structures (30).

3. A semi-solid pulping temperature measurement method according to claim 2, characterized in that: After stirring for a certain period of time, one set of the temperature measuring structures (30) is lowered first, and then another set of the temperature measuring structures (30) is lowered after an interval of 4-10 seconds.

4. A semi-solid pulping temperature measurement method according to claim 2, characterized in that: Two groups of temperature measuring structures (30) are arranged outside the stirring rod (202), and each group of temperature measuring structures (30) includes two temperature measuring sensors (301). The two temperature measuring sensors (301) corresponding to the first group of temperature measuring structures (30) respectively measure the high position and the low position of the metal melt, and the two temperature measuring sensors (301) corresponding to the second group of temperature measuring structures (30) respectively measure the middle position and the low position of the metal melt. Finally, a total of four temperature values ​​of the high position, the middle position and the low position of the metal melt are obtained, and an average value is calculated using the four measured values.

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