A sand temperature detection device for use in the mixing process of molten ceramic sand coated sand.

Abstract

This utility model relates to the technical field of sand temperature detection equipment, specifically a sand temperature detection device used in the mixing process of molten ceramic sand coated sand. It includes a probe base, a rod-shaped detection head at the front end of the probe base, a fixing ring at the connection between the probe base and the detection head, and a connecting ring connected to the fixing ring via a threaded structure. Protective sleeves are provided on both sides of the detection head, and several built-in buffer rings that fit against the outer wall of the detection head are evenly distributed on the inner side of the protective sleeves. Multiple heat dissipation guide plates are provided on the outer side of the protective sleeves. This sand temperature detection device for the mixing process of molten ceramic sand coated sand improves the protection performance of the detection head in high-temperature and high-wear environments, enhances temperature measurement stability and service life, has a simple structure, is easy to maintain, and is suitable for continuous detection needs under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of sand temperature detection equipment, specifically a sand temperature detection device used in the mixing process of molten ceramic sand coated sand. Background Technology

[0002] In the foundry industry, molten ceramic sand is widely used in precision casting processes due to its excellent high-temperature resistance and fluidity. Especially during the mixing of coated sand, the temperature control of the ceramic sand directly affects the subsequent molding quality and product performance. Therefore, real-time and accurate monitoring of the sand temperature is necessary during the mixing process to ensure stable and controllable process parameters.

[0003] Currently, most commonly used sand temperature detection devices employ insertion-type temperature probes, which are directly inserted into the mixture for temperature measurement. However, in high-temperature and high-friction environments, the detection head is easily damaged by sand particles or thermal shock, leading to decreased temperature measurement accuracy or even failure, affecting detection reliability. Furthermore, the detection device lacks an effective external protection structure, making it difficult to adapt to long-term continuous operation conditions, resulting in high maintenance frequency, short service life, and increased production costs and downtime. Utility Model Content

[0004] The purpose of this invention is to provide a sand temperature detection device for the mixing process of molten ceramic sand coated sand, so as to solve the problems mentioned in the background art, that the current sand temperature detection device using an insertion-type temperature probe is prone to wear in high temperature and strong friction environment, thermal shock leading to decreased temperature measurement accuracy, short service life and frequent maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand temperature detection device for the mixing process of molten ceramic sand coated sand, comprising a probe base, a detection head with a rod-shaped structure at the front end of the probe base, a fixing ring on the outside of the connection between the probe base and the detection head, a connecting ring connected to the fixing ring by a threaded structure, and protective sleeves on both sides of the detection head, the inner end of the protective sleeve engaging inside the connecting ring, and a plurality of built-in buffer rings uniformly arranged on the inner side of the protective sleeve that fit against the outer wall of the detection head, the built-in buffer rings being connected to the inner wall of the protective sleeve by elastic deformation members, and a plurality of heat dissipation guide plates on the outer side of the protective sleeve.

[0006] Preferably, both sides of the outer end of the connecting ring are provided with elastic clamping members with an arc-shaped structure, and a snap-fit ​​block is welded and fixed on the inner wall of the elastic clamping member, and a snap-fit ​​groove that matches the snap-fit ​​block structure on the inner end of the protective sleeve is provided on the outer wall.

[0007] Preferably, a plug is welded and fixed in the middle of the inner end of the protective sleeve, and a sleeve that matches the plug structure is welded and fixed on both sides of the inner wall of the inner end of the connecting ring.

[0008] Preferably, the elastic deformable element is an arched sheet structure, and two elastic deformable elements are symmetrically arranged between each built-in buffer ring and the inner wall of the protective sleeve.

[0009] Preferably, the heat dissipation guide fins are arc-shaped fins and are arranged at intervals along the outer wall of the protective sleeve, and each heat dissipation guide fin has an inclined flow guiding surface at its end.

[0010] Preferably, both sides of the protective sleeve are provided with a mating part, and a sealing gasket is glued and fixed on the contact surface of the mating part on both sides of the protective sleeve.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This sand temperature detection device for the mixing process of molten ceramic sand coated sand improves the protective performance of the detection head in high-temperature and high-wear environments, enhances temperature measurement stability and service life, has a simple structure, is easy to maintain, and is suitable for continuous detection needs under complex working conditions. The device improves the overall structural stability and sealing through the structural design of the probe base and detection head, combined with the connection and fixing method of the fixing ring and connecting ring. The protective sleeve, combined with the design of the built-in buffer ring and elastic deformation component, effectively absorbs external impact forces, enhancing the impact resistance of the detection head in high-wear environments. The setting of the heat dissipation guide plate further improves the thermal stability of the device in high-temperature environments, thereby comprehensively improving the temperature measurement accuracy and equipment durability, meeting the continuous and stable detection needs under complex working conditions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a sand temperature detection device used in the mixing process of molten ceramic sand coated sand according to the present invention.

[0013] Figure 2 This is a schematic diagram of the probe base bottom structure of a sand temperature detection device used in the mixing process of molten ceramic sand coated sand according to the present invention.

[0014] Figure 3 This is a schematic diagram of the inner structure of the protective sleeve of a sand temperature detection device used in the mixing process of molten ceramic sand coated sand according to this utility model.

[0015] In the diagram: 1. Probe mount; 2. Detection head; 3. Fixing ring; 4. Connecting ring; 5. Protective sleeve; 6. Heat dissipation guide plate; 7. Sealing gasket; 8. Elastic clamping component; 9. Insert post; 10. Insert sleeve; 11. Elastic deformation component; 12. Built-in buffer ring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a sand temperature detection device for the mixing process of molten ceramic sand coated sand, including a probe base 1, a rod-shaped detection head 2 at the front end of the probe base 1, a wire connected to the rear end of the probe base 1, a fixing ring 3 at the connection between the probe base 1 and the detection head 2, the inner end of the fixing ring 3 being welded and fixed to the probe base 1, a connecting ring 4 being connected to the fixing ring 3 by a threaded structure, and protective sleeves 5 on both sides of the detection head 2, the inner end of the protective sleeves 5 being engaged inside the connecting ring 4, and several built-in buffer rings 12 uniformly arranged on the inner side of the protective sleeves 5, which are in contact with the outer wall of the detection head 2. The built-in buffer rings 12 are arc-shaped and have rubber pads adhered and fixed to their inner walls. The elastic deformable element 11 is connected to the inner wall of the protective sleeve 5, and the outer side of the protective sleeve 5 is provided with multiple heat dissipation guide plates 6. When the detection head 2 is inserted into the molten ceramic sand-coated sand mixture for temperature measurement, the probe base 1 transmits the temperature measurement signal through the rear wire. To prevent damage to the detection head 2 from high temperatures and sand erosion, the fixing ring 3 and the connecting ring 4 are connected by a threaded structure to form a stable support. The inner end of the protective sleeve 5 is engaged inside the connecting ring 4 and tightly fitted to the outer wall of the detection head 2 through the built-in buffer ring 12. The buffering effect of the elastic deformable element 11 absorbs external impact forces, effectively protecting the detection head 2 from wear and thermal shock. Simultaneously, the multiple heat dissipation guide plates 6 on the outer side of the protective sleeve 5 accelerate heat dissipation and reduce... Localized temperature control improves the overall thermal stability of the device. This structure significantly enhances the protection performance and temperature measurement stability of the detection head 2 in high-temperature and high-wear environments, extending its service life. It solves the problems of existing temperature probes being easily damaged by sand particles and thermal shock, resulting in decreased temperature measurement accuracy, frequent maintenance, and short service life. Both sides of the outer edge of the connecting ring 4 are equipped with arc-shaped elastic clamping members 8, made of deformable elastic metal. A locking block is welded and fixed to the inner wall of the elastic clamping member 8, and a locking groove matching the locking block structure on the outer wall of the inner end of the protective sleeve 5 is provided. This structure allows the connecting ring 4 to engage with the locking groove on the outer wall of the inner end of the protective sleeve 5, enabling elastic clamping... The snap-fit ​​block on component 8 is embedded in the snap-fit ​​groove, achieving rapid positioning and stable connection between the protective sleeve 5 and the connecting ring 4. When the device is subjected to vibration or external impact, the elastic clamping component 8 automatically adjusts the clamping force through the elastic deformation generated by its own arc structure, ensuring stable engagement between the snap-fit ​​block and the snap-fit ​​groove, and preventing the protective sleeve 5 from loosening or falling off. A pin 9 is also welded and fixed in the middle of the inner end of the protective sleeve 5, and insert sleeves 10 that cooperate with the structure of the pin 9 are also welded and fixed on the inner walls of both sides of the inner end of the connecting ring 4. This structure allows the pin 9 to be inserted into the insert sleeve 10, forming a positioning and axial limit for the connection between the protective sleeve 5 and the connecting ring 4. This structure, together with the elastic clamping component 8, enhances the coaxiality and stability of the connection part while achieving rapid assembly.To prevent displacement and loosening due to uneven force or vibration, and to ensure a firm connection between the protective sleeve 5 and the connecting ring 4 under high temperature and high impact conditions, the elastic deformation component 11 has an overall arched plate structure, is made of spring steel, and has two symmetrically arranged between each built-in buffer ring 12 and the inner wall of the protective sleeve 5. The connection between the elastic deformation component 11 and the built-in buffer ring 12 and the protective sleeve 5 is fixed by welding. This structure allows the elastic deformation component 11 to keep the built-in buffer ring 12 in close contact with the outer wall of the detection head 2 through its own elastic properties, thereby effectively absorbing vibration and thermal stress, avoiding structural damage caused by local stress concentration, and significantly improving the stability and impact resistance of the detection head 2 under complex working conditions. The heat dissipation guide plate 6 is arc-shaped fin and is arranged at intervals along the outer wall of the protective sleeve 5, and each end of the heat dissipation guide plate 6 has an inclined guide surface. This structure of the heat dissipation guide plate 6 increases the surface area of ​​the outer surface of the protective sleeve 5. The heat dissipation area accelerates heat diffusion outwards, and the airflow channels formed by their spaced arrangement guide external airflow, improving convective heat transfer efficiency. Simultaneously, the inclined guide surface at the end of the heat dissipation guide plate 6 further optimizes the airflow direction, reduces wind resistance, and enhances heat dissipation, thereby effectively reducing the ambient temperature around the detection head 2, improving temperature measurement stability, and enhancing the device's continuous operation in high-temperature environments. Both sides of the protective sleeve 5 have horizontally distributed docking sections, and sealing gaskets 7 are bonded and fixed to the contact surfaces of the docking sections on both sides of the protective sleeve 5. This structure achieves the splicing and closure of the overall external structure through the docking sections on both sides of the protective sleeve 5. Simultaneously, the bonded and fixed sealing gaskets 7 fill the gaps between the docking surfaces, effectively isolating external dust, particles, and high-temperature gases during device operation, preventing impurities from entering the interior and affecting the stability of the detection head 2, significantly improving the sealing performance and environmental adaptability of the protective sleeve 5 connection.

[0018] Working principle: When using this sand temperature detection device for the mixing process of molten ceramic sand coated sand, firstly, the detection head 2 is inserted into the molten ceramic sand mixing environment. The probe base 1 is connected to the external temperature measurement system through the wire connected to its rear end to transmit the temperature signal. The front end of the detection head 2 is wrapped by the protective sleeve 5. The inner end of the protective sleeve 5 is inserted into the connecting ring 4 by a snap-fit ​​method. The connecting ring 4 is fixed to the fixing ring 3 by a threaded structure. The fixing ring 3 is tightly fitted on the outside of the connection between the probe base 1 and the detection head 2. Furthermore, the snap-fit ​​block on the elastic clamping member 8 is embedded in the snap-fit ​​groove on the inner wall of the protective sleeve 5 between the protective sleeve 5 and the connecting ring 4. A quick positioning connection is formed. At the same time, the insert 9 in the middle of the inner end of the protective sleeve 5 is inserted into the insert sleeve 10 on the inner wall of the connecting ring 4 to complete axial limiting and auxiliary fixation. During the assembly process, the two parts of the protective sleeve 5 are closed and the sealing gasket 7 is attached to form a complete protective cavity. When the detection head 2 is subjected to vibration or thermal expansion, the built-in buffer ring 12 is kept in contact with the outer wall of the detection head 2 under the action of the arched elastic deformation member 11 and absorbs the external impact force. At the same time, multiple heat dissipation guide plates 6 on the outer side of the protective sleeve 5 are distributed along the airflow direction, and their inclined guide surfaces at the ends guide the airflow and continuously remove heat, thereby completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sand temperature detection device for use in a molten ceramic sand coated sand mixing process, comprising a probe holder (1), the front end of the probe holder (1) is provided with a detection head (2) in a rod-shaped structure, characterized in that: A fixing ring (3) is provided on the outside of the connection between the probe base (1) and the detection head (2). A connecting ring (4) is connected to the fixing ring (3) by a threaded structure. Protective sleeves (5) are provided on both sides of the detection head (2). The inner end of the protective sleeve (5) is engaged inside the connecting ring (4). A number of built-in buffer rings (12) that fit against the outer wall of the detection head (2) are evenly provided on the inner side of the protective sleeve (5). The built-in buffer rings (12) are connected to the inner wall of the protective sleeve (5) through an elastic deformation member (11). A number of heat dissipation guide plates (6) are provided on the outer side of the protective sleeve (5).

2. The sand temperature detection device for the mixing process of molten ceramic sand coated sand according to claim 1, characterized in that: Both sides of the outer end of the connecting ring (4) are provided with an elastic clamping member (8) with an arc-shaped structure, and a snap-fit ​​block is welded and fixed on the inner wall of the elastic clamping member (8), and a snap-fit ​​groove that matches the snap-fit ​​block structure on the outer wall of the inner end of the protective sleeve (5) is provided.

3. The sand temperature detection device for the mixing process of molten ceramic sand coated sand according to claim 1, characterized in that: The protective sleeve (5) is also welded and fixed with a plug (9) in the middle of its inner end, and the inner walls of both sides of the connecting ring (4) are also welded and fixed with plug sleeves (10) that match the structure of the plug (9).

4. The sand temperature detection device for the mixing process of molten ceramic sand coated sand according to claim 1, characterized in that: The elastic deformable element (11) is an arched sheet structure, and two elastic deformable elements (11) are symmetrically arranged between each built-in buffer ring (12) and the inner wall of the protective sleeve (5).

5. The sand temperature detection device for the mixing process of molten ceramic sand coated sand according to claim 1, characterized in that: The heat dissipation guide plate (6) is in the shape of an arc fin and is arranged at intervals along the outer wall of the protective sleeve (5), and each heat dissipation guide plate (6) has an inclined flow guiding surface at its end.

6. The sand temperature detection device for the mixing process of molten ceramic sand coated sand according to claim 1, characterized in that: Both sides of the protective sleeve (5) are provided with a mating part, and a sealing gasket (7) is glued and fixed on the contact surface of the mating part on both sides of the protective sleeve (5).

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