Industrial glass rod type thermometer and processing technology thereof
By designing an industrial glass rod thermometer including a temperature sensing conduction mechanism, a support mechanism, a joint locking assembly and a positioning mechanism, the problem of high production cost of metal wire in the prior art is solved, the tight connection and angle adjustment between the metal wire and the glass rod are realized, the production cost is reduced and the domestic production capacity is achieved.
Patent Information
- Application Number
- CN202510302392.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-06-13
AI Technical Summary
The existing industrial glass rod thermometers need to rely on metal wires imported from abroad, and the production materials and heat treatment processes of metal wires are high, resulting in excessive production costs and affecting the development of factories and enterprises.
An industrial glass rod thermometer is designed, which includes a temperature sensing conduction mechanism, a propelling mechanism, a joint locking assembly and a positioning mechanism. Through the design and processing technology of these components, the tight connection and angle adjustment between the metal wire and the glass rod are realized, reducing production costs.
It effectively solves the problem of separation and breakage caused by the expansion coefficient between the metal wire and the glass rod, reduces production costs, and has the ability to produce metal wires in China, reducing its dependence on imported foreign products.
Smart Images
Figure CN120141671A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of glass rod thermometers, and particularly to an industrial glass rod thermometer and its processing technology. Background Technique
[0002] In industrial work, glass rod thermometers are made through multiple processes such as manual firing and liquid filling. When mainly used, round rod or triangular rod glass is used as the raw material, and mercury and organic solutions are set inside as temperature-sensing liquids, thereby producing products with different requirements.
[0003] However, for existing industrial glass rod thermometers, two glass rods are fixed at both ends of a metal wire through heat treatment respectively. However, this component can only be purchased abroad originally, and the metal wire providing the function of thermal expansion and contraction needs to be similar to the use function of the glass rod thermometer, so as to form a better heat transfer effect and prevent the possible separation and fracture between the metal wire and the glass rod due to temperature difference factors. Moreover, the production materials of the metal wire and the technological requirements for heat treatment are relatively high, resulting in too high production costs, which is not conducive to the development of factories and enterprises. For this reason, we propose an industrial glass rod thermometer and its processing technology. Summary of the Invention
[0004] The purpose of the present invention is to provide an industrial glass rod thermometer and its processing technology to solve the problem proposed in the above background technique that for existing industrial glass rod thermometers, two glass rods are fixed at both ends of a metal wire through heat treatment respectively. However, this component can only be purchased abroad originally, and the metal wire providing the function of thermal expansion and contraction needs to be similar to the use function of the glass rod thermometer, so as to form a better heat transfer effect and prevent the possible separation and fracture between the metal wire and the glass rod due to temperature difference factors. Moreover, the production materials of the metal wire and the technological requirements for heat treatment are relatively high, resulting in too high production costs, which is not conducive to the development of factories and enterprises.
[0005] To achieve the above purpose, the present invention provides the following technical solution: An industrial glass rod thermometer, including: An instrument protection shell, on one side of the instrument protection shell, there is a locking nut, on one side of the locking nut, there is an upper joint, on the outer side of the upper joint, there is a bushing, on one side of the bushing, there is a copper nut, on the outer side of the copper nut, there is a fixing column, and on one side of the fixing column, there is a protection component; It further includes: A joint locking component, which is arranged inside the bushing and the upper joint, and the joint locking component is used to fix the positions of the bushing and the upper joint; A temperature-sensing conduction mechanism, which is arranged inside the protection component and the instrument protection shell, and the temperature-sensing conduction mechanism is used to conduct temperature; The spreading mechanism is arranged inside the joint locking assembly and is used to spread the metal wire to prevent damage when adjusting the angle; The positioning mechanism is arranged inside the upper joint and is used to limit the positions of the shaft sleeve and the upper joint.
[0006] The joint locking assembly includes a hollow locking screw arranged inside the shaft sleeve and the upper joint, and a locking nut is threadedly connected to the outer side of the hollow locking screw and located on the outer side of the shaft sleeve.
[0007] Among them, the expansion mechanism includes a first limit groove opened inside the hollow locking screw, the inner wall of the first limit groove is slidably connected to a limit ring, the bottom of the limit ring and located in the first limit groove is fixedly connected with a first spring, the inner side of the limit ring is fixedly connected with a pressing shaft, the outer side of the limit ring is fixedly connected with four limit platforms, the four limit platforms are rotatably connected with a rotating plate, the end of the rotating plate away from the limit ring is rotatably connected with an arc-shaped expansion plate, and the interior of the upper joint is provided with a second limit groove matching the arc-shaped expansion plate.
[0008] Among them, the positioning mechanism includes a T-shaped fixing block fixedly connected between the two limit platforms, a second spring fixedly connected to the inner side of the sleeve, a fixed connecting disk fixedly connected to the top of the second spring, a one-way positioning cone fixedly connected to the bottom of the fixed connecting disk and located inside the second spring, a rope fixedly connected between the T-shaped fixing block and the fixed connecting disk, and a guide limit block fixedly connected to the inner side of the sleeve and located below the rope.
[0009] The temperature sensing and conducting mechanism comprises a first glass rod arranged inside the protection component, a metal wire is arranged inside the first glass rod, and a second glass rod is arranged at one end of the metal wire away from the first glass rod.
[0010] Among them, a reinforcement nut is arranged on the outside of the instrument protective shell, an anti-loosening disk is arranged on the outside of the instrument protective shell and between the reinforcement nut and the locking nut, and anti-slip raised particles are arranged on the side of the anti-loosening disk close to the locking nut.
[0011] The processing technology of industrial glass rod thermometer includes the following steps: S1. Bubble blowing process: adjust the flame of the lamp holder and preheat the fire, place one end of the glass rod neatly on the preheat fire for preheating, put the leather cover on the other end of the glass rod, then hold the glass rod with one hand and let the preheat end be burned, and hold the balloon with the other hand to inflate. When the burning surface of the glass rod becomes a funnel shape, remove the leather tube, hold dozens of glass rods tightly with both hands, make them stand upside down in the turnover box, and gently flush them a few times to make the sintering surface as flat as possible and remove fine glass fragments; S2. Measuring the glass rod process: Place the glass rod at a 45-degree angle, pour mercury from the end with a flared opening, lay the glass rod flat. After the mercury flows to the middle position of the glass rod, measure the length of the mercury column, mark the length value on the glass rod, then pour out the mercury from the injection port end and collect it, keeping it clean. Classify and summarize the measured glass rods, wrap them up, and wrap both ends with paper to avoid pore contamination; S3. Cutting process for the upper and lower bodies: Cut and break according to the required length of the upper body glass rod, classify and pack them by the same number and length. Cut and break the lower body glass rod with the determined pore size according to the required length, and classify and pack them by the same pore size and length; S4. Lampworking process for wire drawing: Adjust the lamp head flame and preheating flame. Neatly place one end of the glass rod on the preheating flame for preheating. Hold one glass rod in each hand, bring the preheated ends of the two glass rods into contact, align them, and simultaneously weld them on the lamp head. When it is heated to a soft state, remove it from the flame and twist the two glass rods together. Pull them horizontally left and right at the same time with both hands. When the wire is drawn to 70 - 80 mm, quickly burn and cut it in the middle of the wire until it is okay; S5. Lampworking process for expanding long bubbles: Adjust the lamp head flame and preheating flame. Neatly place the drawn end of the glass rod on the preheating flame for preheating. Hold the glass rod with the left hand and heat the head, support the drawn part with the right hand, with the white back of the glass rod facing down and the glass rod parallel to the flame. Keep rotating the glass rod back and forth with the left hand to make it evenly heated. After it is heated to a soft state, insert the other end of the glass rod into the inflation valve hole to inflate it until the inner hole of the welded section of the glass rod expands into a long bubble shape. Place the welded part neatly on the electric furnace to relieve stress for about 15 minutes, then remove it until it cools down and pack it in a box; S6. Cutting process for long bubbles: Cut off the excess part at the end with the long bubble of the upper body glass rod, keep the length of the long bubble hole about 20 MM intact, and make a small cut at the length required for the upper body at the other end without cutting through. Classify and pack them by the same number and length; S7. Lampworking process for lower body bubble expansion + cutting off: Adjust the lamp head flame and preheating flame. Neatly place one end of the glass rod on the preheating flame for preheating. Plug one end of the glass rod with a leather sleeve, then hold the glass rod with one hand and heat it for welding, and hold the balloon with the other hand to inflate it. After the welded surface of the glass rod becomes funnel-shaped, remove the leather tube, place the glass rod well, and repeat steps 2 - 4 for the other end. Expand both ends into flared openings. After expanding both ends into flared openings, preheat the middle of the glass rod, hold both ends of the glass rod with both hands and weld it in the middle on the lamp head to cut it off; S8. Lamp worker five lower body bulb connection process: adjust the lamp holder flame and preheat fire, place one end of the glass rod where the bulb is bulging neatly on the preheat fire for preheating, hold the bulb tube with the right hand, burn and seal one end of the bulb tube, take the lower body glass rod to the lamp holder with the left hand for burning, after reaching the soft state, cut the flat end of the bulb tube and connect it to the lower body glass rod, turn the glass rod with the left hand, and just hold the bulb tube with the right hand to ensure that the two are in a straight line, after burning and connecting, align the burned part with the air outlet for 2-3S to cool, and when it is firm, cut the bulb tube with the grinding stone, place it on the electric furnace for stress relief, which takes about 15 minutes, remove it and cool it down before packing, and check the burned part with a stress meter to check whether the stress is relieved; S9. Measuring the second bubble process: according to the temperature range and the number of the upper glass rod, take the corresponding amount of mercury with a standard instrument, first inject it into the verification bubble tube to confirm whether the amount of mercury is correct. After confirmation, pour the mercury into the paper funnel, and then pour it into the lower bubble tube to be measured. Stand the lower glass rod upside down with the bubble tube facing up, look at the top surface of the mercury in the bubble tube, use a fine brush to mark the black line on the bubble tube aligned with the bottom diameter of the mercury arch. After confirmation, pour the mercury into the paper funnel and repeat the operation; S10. Six-stage bulb sealing process: adjust the flame of the lamp holder, take off the glass rod, put it on the positioning bracket, burn one end of the bulb tube, slowly turn the glass rod, and when the time is up, use tweezers in your right hand to quickly cut off the excess bulb tube and remove it; S11. Cutting of three lower glass rods: Cut off the excess parts according to the required length of the lower glass rods, and pack them in the same number and length; S12. Seven steps of lamp work: control the flame of the lamp holder, preheat the fire, arrange the cut end of the lower glass rod neatly on the preheating fire for preheating, hold the lamp holder on the glass rod with your left hand and burn it until it is soft, then quickly insert the metal wire into the pores of the glass rod with your right hand and hold it parallel to the glass rod, burn it towards the middle of the wire in the pores of the glass rod until the wire and the glass rod turn red and completely fuse, after burning, align the burned part with the air outlet to cool, and shape the glass rod, do not bend or deform, and after it is firm, place it on the electric furnace for stress relief, which takes about 15 minutes, remove it and cool it, then pack it, and check the burned part with a stress meter to see if the stress is relieved; S13. Lamp worker eight upper body wire connection process: adjust the lamp flame and preheating fire, arrange the cut end of the upper body glass rod neatly on the preheating fire for preheating, hold the upper lamp holder of the glass rod with your left hand and burn it to a soft state, then quickly insert the other end of the metal wire connected to the lower body glass rod into the pores of the glass rod with your right hand and hold it to keep it parallel to the glass rod, burn it towards the middle position of the wire in the pores of the glass rod until the wire and the glass rod turn red and completely fuse, after burning, align the burned part with the air outlet to cool, and shape the glass rod, which cannot be bent or deformed. After it is firm, place it on the electric furnace for stress relief, which takes about 15 minutes, remove it and cool it, then pack it, and use a stress meter to check the burned part to see if the stress is relieved; S14. High-temperature aging process: Turn on the oven, set the time, over-temperature, and constant temperature. Use pliers to break off the small section of the glass rod reserved on the upper body (to prevent contamination). Tie the upper and lower bodies of the glass rod into a bundle with iron wire, 100 in a bundle, with both ends neat. Place the bundled glass rods in the oven, lay them flat and neatly. When the oven stops keeping warm to about 50°C, the oven door is allowed to open at an angle for heat and cold alternation, but do not open it completely. When the temperature is close to room temperature, the glass rods can be taken out; S15. Vacuum liquid addition process: Place the glass rod upside down into the liquid addition bucket. After filling, tie the lower body with a rubber strip to prevent it from coming apart. Place the liquid addition bucket filled with glass rods into the vacuum liquid addition bucket. Insert the liquid outlet hose to the liquid inlet joint at the bottom of the liquid addition bucket and fix it so that it does not loosen and remains sealed. Cover the bucket lid and lock all the screws to ensure sealing. Except for the vacuum valve being open, close all other valves tightly. Turn on the vacuum pump to evacuate the air. When the vacuum degree reaches -0.1 MPA and there is no leakage for 2 hours, turn off the vacuum valve and the power supply of the vacuum pump. Open the liquid discharge valve. Observe and close it when the liquid volume in the storage bottle reaches 1.5 L. Then turn on the power supply of the vacuum pump and the vacuum valve again. When the vacuum degree reaches -0.1 MPA and there is no leakage for 30 minutes, turn off the vacuum valve and the power supply of the vacuum pump. Open the air inlet valve. Loosen the screws of the bucket lid and open the lid; S16. Constant temperature bath liquid replenishment process: Turn on the corresponding constant temperature bath and set the liquid replenishment temperature. After the temperature is constant, slowly insert the lower body of the glass rod into the liquid in the constant temperature bath. The immersion depth is such that 10 - 15 mm of the lower body is exposed above the liquid surface. The upper body is placed flat. Drain the excess liquid in the glass rod until no liquid is drained. Wrap the top end of the upper body with a sealed bag and fill the sealed bag with nitrogen until the sealed bag bulges. Take out the glass rod and clean the lower body. Separate them one by one and place them neatly; S17. Lampworking nine - cap sealing process: Adjust the lamp head flame and preheating flame. Neatly arrange the cut ends of the upper body glass rods on the preheating flame for preheating. Hold the upper body of the glass rod with the left hand and weld it to the lamp head until sealed. Then quickly pass the temperature - sensing package over the preheating flame with the right hand to expand the inner hole at the top of the upper body to form a safety bubble. After sealing, place the top end of the glass rod on the electric furnace to relieve stress for about 15 minutes, then take it off and let it cool. Use a stress meter to check the welded part to see if the stress has been relieved; S18. Surface cleaning process: Clean the surface of the glass rod with gauze dipped in alcohol. Classify and tie them up according to the temperature range and specifications and store them in the warehouse.
[0012] The present invention has at least the following beneficial effects: The temperature sensing and conducting mechanism is divided into an upper second glass rod and a lower first glass rod, with a metal wire arranged in the middle. The upper body is longer than the lower body. The first glass rod is located at the metal temperature sensing end of the thermometer, and the second glass rod is located in the scale area of the thermometer. The metal wire is wound around the joint locking assembly. The various components of the industrial glass rod thermometer are tightly connected, and the case can be adjusted to an angle between 0° and 90° through a locking nut, an upper joint, a shaft sleeve, a joint locking assembly and an outer aluminum protective sleeve. The processing technology of the industrial glass rod thermometer in the present invention can effectively solve the problem of the possibility of separation and fracture between the metal wire and the glass rod due to the expansion coefficient. It is fully equipped with a production process related to the heat treatment of the metal wire, thereby enabling the domestic production of the metal wire without the need to import the product from abroad, thereby reducing production costs and contributing to the development of domestic factories and enterprises. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the shaft sleeve and the upper joint of the present invention; Figure 4 It is a schematic diagram of the structure of the propping mechanism, the positioning mechanism and the joint locking assembly of the present invention; Figure 5 It is a structural schematic diagram of the propping mechanism of the present invention; Figure 6 It is a structural schematic diagram of the positioning mechanism of the present invention; Figure 7 It is a front view structural schematic diagram of the one-way positioning cone of the present invention; Figure 8 It is a structural schematic diagram of the temperature sensing conduction mechanism of the present invention; Figure 9 It is a structural schematic diagram of the reinforcing nut of the present invention; Figure 10 It is a schematic structural diagram of the anti-loosening disk of the present invention.
[0014] In the figure: 1, instrument protective housing; 2, spreading mechanism; 21, pressing shaft; 22, limiting ring; 23, first limiting groove; 24, first spring; 25, limiting platform; 26, rotating plate; 27, arc-shaped spreading plate; 28, second limiting groove; 3, positioning mechanism; 31, T-shaped fixing block; 32, rope; 33, guiding and limiting block; 34, one-way positioning cone; 35, fixed connection plate; 36, second spring; 4, temperature sensing and conduction mechanism; 41, first glass rod; 42, second glass rod; 43, metal wire; 5, bushing; 6, upper joint; 7, copper nut; 8, fixing column; 9, joint locking assembly; 91, hollow locking screw; 92, locking nut; 10, protection assembly; 11, reinforcing nut; 12, anti-loosening plate; 13, locking nut. Specific implementation mode
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment
[0016] Please refer to Figures 1 to 10 , the present invention provides a technical solution: an industrial glass rod thermometer, including: Instrument protective housing 1, a locking nut 13 is arranged on one side of the instrument protective housing 1, an upper joint 6 is arranged on one side of the locking nut 13, a bushing 5 is arranged on the outer side of the upper joint 6, a copper nut 7 is arranged on one side of the bushing 5, a fixing column 8 is arranged on the outer side of the copper nut 7, and a protection assembly 10 is arranged on one side of the fixing column 8; It further includes: Joint locking assembly 9, the joint locking assembly 9 is arranged inside the bushing 5 and the upper joint 6, and the joint locking assembly 9 is used to fix the positions of the bushing 5 and the upper joint 6; Temperature sensing and conduction mechanism 4, the temperature sensing and conduction mechanism 4 is arranged inside the protection assembly 10 and the instrument protective housing 1, and the temperature sensing and conduction mechanism 4 is used to conduct temperature; Spreading mechanism 2, the spreading mechanism 2 is arranged inside the joint locking assembly 9, and the spreading mechanism 2 is used to spread the metal wire to prevent damage when adjusting the angle; Positioning mechanism 3, the positioning mechanism 3 is arranged inside the upper joint 6, and the positioning mechanism 3 is used to limit the positions of the bushing 5 and the upper joint 6.
[0017] By providing the temperature sensing and conduction mechanism 4 above, the temperature detected at one end can be transmitted through mercury or red organic liquid Heat is conducted to the inside of the instrument protection housing 1, and the display is carried out through the temperature detection inside the instrument protection housing 1; by providing the expansion mechanism 2, a force can be provided to expand the metal wire inside the temperature sensing and conduction mechanism 4, preventing damage to the metal wire during angle adjustment; by providing the joint locking assembly 9 and the positioning mechanism 3, the positions of the bushing 5 and the upper joint 6 can be limited, and adjustment can be made when loosening them, and the positioning mechanism 3 can prevent backward movement during angle adjustment. During use, a copper pillar, a drawing board, a glass plate, a glass rod, and a rubber sleeve are provided inside the instrument protection housing 1 (specifically, reference can be made to another patent CN215726422U), and a large rubber gasket is provided between the copper nut 7 and the fixed column 8. The protection assembly 10 is provided with a rubber fixing assembly, an inner aluminum protection sleeve, and an outer aluminum protection sleeve from the inside to the outside. When angle adjustment is required, the joint locking assembly 9 is loosened, and then the expansion mechanism 2 is pressed to drive the positioning mechanism 3, so that the pressed expansion mechanism 2 expands the temperature sensing and conduction mechanism 4, and then the angular position of the bushing 5 and the upper joint 6 can be adjusted. The joint locking assembly 9 includes a hollow locking screw 91 provided inside the bushing 5 and the upper joint 6. A locking nut 92 is threadedly connected to the outside of the hollow locking screw 91 and located outside the bushing 5. During use, by inserting the hollow locking screw 91 into the inside of the bushing 5 and the upper joint 6 and threadedly connecting the hollow locking screw 91 with the locking nut 92, the pressing shaft 21 can be limited through the cooperation of the hollow locking screw 91 and the locking nut 92. When unlocking, the locking nut 92 is rotated and removed. The expansion mechanism 2 includes a first limiting groove 23 opened inside the hollow locking screw 91. The inner wall of the first limiting groove 23 is slidably connected with a limiting ring 22. A first spring 24 is fixedly connected to the bottom of the limiting ring 22 and located inside the first limiting groove 23. A pressing shaft 21 is fixedly connected to the inner side of the limiting ring 22. Four limiting platforms 25 are fixedly connected to the outer side of the limiting ring 22. A rotating plate 26 is rotatably connected inside the four limiting platforms 25. One end of the rotating plate 26 away from the limiting ring 22 is rotatably connected with an arc-shaped expansion plate 27. A second limiting groove 28 matched with the arc-shaped expansion plate 27 is opened inside the upper joint 6. During use, pressing the pressing shaft 21 drives the limiting ring 22 to slide inside the first limiting groove 23, so that the downward moving limiting ring 22 compresses the first spring 24, and at the same time, the rotating plate 26 is pushed through the outer limiting platforms 25. Then, the pushed rotating plate 26 drives the arc-shaped expansion plate 27 to slide inside the second limiting groove 28, so that the four arc-shaped expansion plates 27 are separated, and a certain expansion force can be provided for the metal wire 43. This force is set to only prevent the metal wire 43 from winding and shaping, and will not affect the flow of the internal liquid. The positioning mechanism 3 includes a T-shaped fixing block 31 fixedly connected between two limiting platforms 25. A second spring 36 is fixedly connected to the inner side of the bushing 5. The top of the second spring 36 is fixedly connected to a fixing connection disk 35. A one-way positioning cone 34 is fixedly connected to the bottom of the fixing connection disk 35 and located inside the second spring 36. A rope 32 is fixedly connected between the T-shaped fixing block 31 and the fixing connection disk 35. A guiding and limiting block 33 is fixedly connected to the inner side of the bushing 5 and below the rope 32; During use, when the T-shaped fixing block 31 drives downward movement, it will drive the guiding and limiting block 33 to pull the fixing connection disk 35 upward under the supporting action of the guiding and limiting block 33, so that the upward moving fixing connection disk 35 stretches the second spring 36 and drives the one-way positioning cone 34 away from the upper joint 6. Thus, the angle of the upper joint 6 can be adjusted reversely. When the one-way positioning cone 34 resets, the upper joint 6 can only be adjusted in a single direction; The temperature-sensing and conduction mechanism 4 includes a first glass rod 41 arranged inside the protection component 10. A metal wire 43 is arranged inside the first glass rod 41. One end of the metal wire 43 away from the first glass rod 41 is provided with a second glass rod 42. During use, the temperature is detected by the first glass rod 41, and mercury or red organic solution is transported through the hollow environment inside the metal wire 43 to the second glass rod 42; A reinforcing nut 11 is arranged on the outer side of the instrument protection shell 1. An anti-loosening disk 12 is arranged on the outer side of the instrument protection shell 1 and between the reinforcing nut 11 and the locking nut 13. Anti-slip convex particles are arranged on the side of the anti-loosening disk 12 close to the locking nut 13. During use, by rotating the reinforcing nut 11, the anti-loosening disk 12 can be driven to approach the locking nut 13. Thus, the position of the locking nut 13 can be limited by the protective convex particles arranged on one side of the anti-loosening disk 12 to prevent loosening; The processing technology of an industrial glass rod thermometer includes the following steps: S1. Lampworking and blowing bubble process: Adjust the lamp head flame and preheating flame. Neatly arrange one end of the glass rod on the preheating flame for preheating. Plug the other end of the glass rod with a leather sleeve. Then hold the glass rod with one hand and let the preheating end be welded by fire, and hold the balloon with the other hand to inflate. After the welded surface of the glass rod becomes funnel-shaped, remove the leather tube. Hold dozens of glass rods tightly with both hands, make them stand upside down in the turnover box, and gently flush a few times to make the sintered surface as flat as possible, and remove the fine broken glass; S2. Measuring and sizing eye process: Place the glass rod at a 45-degree angle, inject mercury from the end with a flared mouth, lay the glass rod flat. After the mercury flows to the middle position of the glass rod, measure the length of the mercury column, mark the length value on the glass rod, then pour out the mercury from the injection port end and collect it, keep it clean, classify and summarize the measured glass rods and wrap them up, wrap both ends with paper to avoid pore contamination; S3. Upper and lower body cutting and breaking process: Cut and break according to the required length of the upper body glass rod, classify and pack them with the same number and length. Cut and break the lower body glass rod with the determined pore size according to the required length, and classify and pack them with the same pore size and length. S4. Lampworking two - wire drawing process: Adjust the lamp head flame and preheating flame. Neatly place one end of the glass rod on the preheating flame for preheating. Hold one glass rod in each hand, bring the preheated ends of the two glass rods into contact, align them, and simultaneously weld them on the lamp head. When it reaches a soft state, remove it from the flame and twist the two glass rods together. Pull horizontally with both hands left and right at the same time. When the wire is drawn to 70 - 80 mm, quickly burn and cut it from the middle of the wire until it is okay. S5. Lampworking three - long bubble expanding process: Adjust the lamp head flame and preheating flame. Neatly place the drawn - end of the glass rod on the preheating flame for preheating. Hold the glass rod with the left hand and heat it on the lamp head. Support the drawn part with the right hand. Keep the white back of the glass rod downward and the glass rod parallel to the flame. Continuously rotate the glass rod back and forth with the left hand to make it evenly heated. After it reaches a soft state, insert the other end of the glass rod into the inflation valve hole to inflate, so that the inner hole of the welded section of the glass rod expands into a long - bubble shape. Neatly place the welded part on the electric furnace to relieve stress for about 15 minutes, then remove it until it cools down and pack it into a box. S6. Cutting two - long bubble cutting process: Cut off the excess part at one end of the long bubble of the upper body glass rod, keep the length of the long - bubble hole about 20 MM intact, and make a small cut at the length required for the upper body at the other end without cutting through. Classify and pack them with the same number and length. S7. Lampworking four - lower body bubble expanding + cutting off process: Adjust the lamp head flame and preheating flame. Neatly place one end of the glass rod on the preheating flame for preheating. Plug one end of the glass rod with a leather sleeve, then hold the glass rod with one hand and heat it for welding, and hold the balloon with the other hand to inflate. After the welded surface of the glass rod becomes funnel - shaped, remove the leather tube, place the glass rod well, and repeat steps 2 - 4 for the other end. Expand both ends into flared mouths. After expanding both ends into flared mouths, preheat the middle of the glass rod, hold both ends of the glass rod with both hands and weld it in the middle on the lamp head to cut it off. S8. Lampworking five - lower body bubble connecting process: Adjust the lamp head flame and preheating flame. Neatly place one end of the glass rod at the bubble - expanding part on the preheating flame for preheating. Hold the bubble tube with the right hand and weld and seal one end of the bubble tube. Hold the lower body glass rod with the left hand and weld it on the lamp head. After it reaches a soft state, connect the cut - flat end of the bubble tube to the lower body glass rod. Rotate the glass rod with the left hand and only support the bubble tube with the right hand to ensure they are in a straight line. After welding, align the welded part with the air - blowing port for 2 - 3 s to cool. After it is firm, cut off the bubble tube through the abrasive stone, place it on the electric furnace to relieve stress for about 15 minutes, then remove it until it cools down and pack it into a box. Use a stress meter to randomly inspect the welded part to check whether the stress has been relieved. S9. Measuring the two-bubble process: According to different temperature ranges and upper-body glass rod numbers, use a standard device to take the corresponding amount of mercury. First, pour it into the verification bubble tube to confirm whether the amount of mercury is correct. After confirmation, pour the mercury into a paper funnel and then into the lower-body bubble tube to be measured. Invert the lower-body glass rod vertically with the bubble tube facing up. Look at the top surface of the mercury in the bubble tube at eye level. Use a fine brush to mark a black line on the bubble tube aligned with the bottom diameter of the mercury arch. After confirmation, pour the mercury into the paper funnel and repeat the operation; S10. Lampworking six-sealing bubble process: Adjust the lamp head flame. Hold the lower-body glass rod by hand and place the glass rod on the positioning bracket. Burn and connect one end of the bubble tube. Slowly rotate the glass rod. When the time is up, quickly use forceps in the right hand to cut off the excess bubble tube and remove it; S11. Cutting the three-lower-body glass rod cutting process: Cut off the excess part according to the required length of the lower-body glass rod, and classify and pack them according to the same number and length; S12. Lampworking seven process: Adjust the lamp head flame and preheating flame. Neatly arrange the cut ends of the lower-body glass rods on the preheating flame for preheating. Hold the glass rod with the left hand and burn and connect it to the lamp head until it is in a soft state. Then quickly insert the metal wire into the pores of the glass rod with the right hand and hold it parallel to the glass rod. Burn and connect at the middle position of the wire in the pores of the glass rod until the wire and the glass rod turn red and are completely fused. After the welding is completed, align the welded part with the air outlet for cooling and shape the glass rod without bending or deforming. After it is firm, place it on the electric furnace for stress relief for about 15 minutes, then remove it until it cools and pack it. Check the welded part with a stress meter to see if the stress has been relieved; S13. Lampworking eight-upper-body wire connection process: Adjust the lamp head flame and preheating flame. Neatly arrange the cut ends of the upper-body glass rods on the preheating flame for preheating. Hold the glass rod with the left hand and burn and connect it to the lamp head until it is in a soft state. Then quickly insert the other end of the metal wire connected to the lower-body glass rod into the pores of the glass rod with the right hand and hold it parallel to the glass rod. Burn and connect at the middle position of the wire in the pores of the glass rod until the wire and the glass rod turn red and are completely fused. After the welding is completed, align the welded part with the air outlet for cooling and shape the glass rod without bending or deforming. After it is firm, place it on the electric furnace for stress relief for about 15 minutes, then remove it until it cools and pack it. Check the welded part with a stress meter to see if the stress has been relieved; S14. High-temperature aging process: Turn on the oven, set the time, over-temperature, and constant-temperature values. Use pliers to break off the small section of the upper-body reserved (for anti-pollution) glass rod. Tie the upper and lower parts of the glass rod into a bundle with iron wire, 100 in a bundle, with both ends neat. Place the bundled glass rods in the oven, arrange them neatly in a flat position. When the oven stops maintaining the temperature to about 50°C, the oven door can be opened at an angle for alternating hot and cold, but do not open it completely. When the temperature is close to room temperature, the glass rods can be taken out; S15. Vacuum liquid filling process: Invert the glass rod and place it into the liquid filling bucket. After it is full, tie the lower body with a rubber strip to prevent it from coming apart. Put the liquid filling bucket filled with glass rods into the vacuum liquid filling bucket. Insert the liquid outlet hose to the liquid inlet connector at the bottom of the liquid filling bucket and fix it to ensure it does not loosen and remains sealed. Cover the bucket lid and tighten all the screws to ensure sealing. Close all valves except the vacuum valve. Turn on the vacuum pump to evacuate the air. When the vacuum degree reaches -0.1 MPA, maintain it for 2 hours without leakage. Turn off the vacuum valve and the power supply of the vacuum pump. Open the liquid discharge valve. Observe and close it when the liquid volume in the liquid storage bottle reaches 1.5 L. Then turn on the power supply of the vacuum pump and the vacuum valve again. When the vacuum degree reaches -0.1 MPA, maintain it for 30 minutes without leakage. Turn off the vacuum valve and the power supply of the vacuum pump. Open the air inlet valve. Loosen the screws of the bucket lid and open the lid; S16. Constant temperature bath liquid replenishment process: Turn on the corresponding constant temperature bath and set the liquid replenishment temperature. After the temperature is constant, slowly insert the lower body of the glass rod into the liquid in the constant temperature bath. The immersion depth is such that 10 - 15 mm of the lower body is exposed above the liquid surface. Keep the upper body flat. Drain the excess liquid in the glass rod until no liquid is drained. Wrap the top end of the upper body with a sealed bag and fill the sealed bag with nitrogen until the sealed bag bulges. Take out the glass rod and clean the lower body, and neatly place them separately one by one; S17. Lampworking nine - cap sealing process: Adjust the lamp head flame and preheating flame. Neatly place the cut end of the upper - body glass rod on the preheating flame for preheating. Hold the glass rod with the left hand and weld it to the lamp head until it is sealed. Then quickly pass the temperature - sensing package over the preheating flame with the right hand to make a safety bubble bulge out of the inner hole at the top of the upper body. After sealing, place the top end of the glass rod on the electric furnace to relieve stress for about 15 minutes, then take it off and let it cool. Use a stress meter to check the welded part to see if the stress has been relieved; S18. Surface cleaning process: Clean the surface of the glass rod with a gauze dipped in alcohol, and classify and tie them up for storage according to the temperature range and specifications.
[0018] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0019] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An industrial glass rod thermometer, characterized in that: include: An instrument protection case (1), wherein a locking nut (13) is provided on one side of the instrument protection case (1), an upper joint (6) is provided on one side of the locking nut (13), a shaft sleeve (5) is provided on the outer side of the upper joint (6), a copper nut (7) is provided on one side of the shaft sleeve (5), a fixing column (8) is provided on the outer side of the copper nut (7), and a protection component (10) is provided on one side of the fixing column (8); Also included are: A joint locking assembly (9), wherein the joint locking assembly (9) is arranged inside the shaft sleeve (5) and the upper joint (6), and the joint locking assembly (9) is used to fix the position of the shaft sleeve (5) and the upper joint (6); A temperature sensing and conducting mechanism (4), the temperature sensing and conducting mechanism (4) being arranged inside the protection component (10) and the instrument protection shell (1), and the temperature sensing and conducting mechanism (4) being used to conduct temperature; An opening mechanism (2), the opening mechanism (2) being arranged inside the joint locking assembly (9), and the opening mechanism (2) being used to open the metal wire to prevent damage when adjusting the angle; A positioning mechanism (3), wherein the positioning mechanism (3) is arranged inside the upper joint (6), and the positioning mechanism (3) is used to limit the positions of the shaft sleeve (5) and the upper joint (6).
2. The industrial glass rod thermometer according to claim 1, characterized in that: The joint locking assembly (9) comprises a hollow locking screw (91) arranged inside the shaft sleeve (5) and the upper joint (6), and a locking nut (92) is threadedly connected to the outside of the hollow locking screw (91) and located on the outside of the shaft sleeve (5).
3. The industrial glass rod thermometer according to claim 2, characterized in that: The expansion mechanism (2) comprises a first limiting groove (23) provided inside a hollow locking screw (91); the inner wall of the first limiting groove (23) is slidably connected to a limiting ring (22); a first spring (24) is fixedly connected to the bottom of the limiting ring (22) and located inside the first limiting groove (23); a pressing shaft (21) is fixedly connected to the inner side of the limiting ring (22); four limiting platforms (25) are fixedly connected to the outer side of the limiting ring (22); a rotating plate (26) is rotatably connected to the inside of the four limiting platforms (25); an end of the rotating plate (26) away from the limiting ring (22) is rotatably connected to an arc-shaped expansion plate (27); and a second limiting groove (28) matching the arc-shaped expansion plate (27) is provided inside the upper joint (6).
4. The industrial glass rod thermometer according to claim 3, characterized in that: The positioning mechanism (3) comprises a T-shaped fixing block (31) fixedly connected between the two limiting platforms (25); a second spring (36) is fixedly connected to the inner side of the shaft sleeve (5); a fixed connection plate (35) is fixedly connected to the top of the second spring (36); a one-way positioning cone (34) is fixedly connected to the bottom of the fixed connection plate (35) and located inside the second spring (36); a rope (32) is fixedly connected between the T-shaped fixing block (31) and the fixed connection plate (35); and a guide limiting block (33) is fixedly connected to the inner side of the shaft sleeve (5) and located below the rope (32).
5. The industrial glass rod thermometer according to claim 1, characterized in that: The temperature sensing conduction mechanism (4) comprises a first glass rod (41) arranged inside the protection component (10), a metal wire (43) is arranged inside the first glass rod (41), and a second glass rod (42) is arranged at one end of the metal wire (43) away from the first glass rod (41).
6. The industrial glass rod thermometer according to claim 1, characterized in that: A reinforcing nut (11) is arranged on the outside of the instrument protection case (1), an anti-loosening plate (12) is arranged on the outside of the instrument protection case (1) and between the reinforcing nut (11) and the locking nut (13), and anti-slip protruding particles are arranged on a side of the anti-loosening plate (12) close to the locking nut (13).
7. A processing technology for an industrial glass rod thermometer, applied to an industrial glass rod thermometer as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Bubble blowing process: adjust the flame of the lamp holder and the preheating fire, place one end of the glass rod neatly on the preheating fire for preheating, put the leather cover on the other end of the glass rod, then hold the glass rod with one hand and let the preheating end be burned, and hold the balloon with the other hand to inflate. When the burning surface of the glass rod becomes a funnel shape, remove the leather tube, hold dozens of glass rods tightly with both hands, make them stand upside down in the turnover box, rinse them to make the sintering surface flush, and remove the broken glass; S2. Eye measurement process: Place the glass rod at a 45-degree angle, inject mercury from the end with the flared mouth, and place the glass rod flat. After the mercury flows to the middle of the glass rod, measure the length of the mercury column and mark the length value on the glass rod. Pour the mercury from one end of the injection port and collect it. Keep it clean. Classify and bundle the measured glass rods, and wrap both ends with paper to avoid pore contamination. S3. Upper and lower body cutting and breaking process: cut and break the upper body glass rod according to the required length, and pack them in the same number and length; cut and break the lower body glass rod with the determined pore size according to the required length, and pack them in the same pore size and length; S4. Wire drawing process: adjust the flame and preheating fire of the lamp holder, place one end of the glass rod neatly on the preheating fire for preheating, hold a glass rod in each hand, touch and align the preheating ends of the two glass rods and burn them on the lamp holder at the same time. When they are burned to a soft state, leave the flame and twist the two glass rods together, pull them left and right with both hands horizontally at the same time. When the wire is drawn to 70-80mm, burn it instantly from the middle of the wire until it is soft; S5. Bubble expansion process: adjust the lamp flame and preheating fire, place one end of the glass rod neatly on the preheating fire for preheating, take the glass rod to the flame with your left hand and burn it, hold the wire drawing part with your right hand, with the white back of the glass rod facing down, the glass rod parallel to the flame, and keep turning the glass rod back and forth with your left hand to make it evenly heated. After burning to a soft state, insert the other end of the glass rod into the inflation valve hole to inflate, so that the inner hole of the glass rod in the sintering section expands into a long bubble shape, and neatly place the sintering part on the electric furnace to relieve stress, which takes about 15 minutes, then remove it and cool it down before packing; S6. Cutting process of long bubble: cut off the excess part of one end of the long bubble according to the upper glass rod, leaving the long bubble hole about 20MM in good condition, and cut a small hole at the other end at the required length of the upper body, do not cut it off, and install them according to the same number and length; S7. The process of swelling and burning the lower body: adjust the flame of the lamp holder and preheat the flame, place one end of the glass rod neatly on the preheat flame for preheating, put a leather cover on one end of the glass rod, and then hold the glass rod on the flame with one hand and inflate it with the other hand. When the glass rod is burned into a funnel shape, remove the leather tube, place the glass rod, repeat steps 2-4 on the other end, and swell the two ends into a trumpet. After the two ends are swollen into a trumpet, preheat the middle of the glass rod, hold the two ends of the glass rod on the lamp holder with both hands, and burn it in the middle; S8. Bulb connection process for the lower body: adjust the flame of the lamp holder and the preheating fire, neatly place one end of the glass rod where the bubble is bulging on the preheating fire for preheating, hold the bulb tube with the right hand, burn and seal one end of the bulb tube, take the lower glass rod to the lamp holder with the left hand for burning, and connect the flat end of the bulb tube to the lower glass rod after it reaches the soft state, rotate the glass rod with the left hand, and just hold the bulb tube with the right hand to ensure that the two are in a straight line. After burning and connecting, align the burned part with the air outlet for 2-3S to cool, and when it is firm, cut the bulb tube with the grinding stone, and place it on the electric furnace for stress relief, which takes about 15 minutes, remove it and cool it down before packing it, and check the burned part with a stress meter to check whether the stress is relieved; S9. Bubble measuring process: according to the temperature range and the number of the upper glass rod, take the corresponding amount of mercury with a standard instrument, first inject it into the verification bubble tube to confirm whether the amount of mercury is correct. After confirmation, pour the mercury into the paper funnel, and then pour it into the lower bubble tube to be measured. Stand the lower glass rod upside down with the bubble tube facing up, look at the top surface of the mercury in the bubble tube at eye level, use a fine brush to mark the black line on the bubble tube aligned with the bottom diameter of the mercury arch, after confirmation, pour the mercury into the paper funnel and repeat the operation; S10. Bubble sealing process: adjust the flame of the lamp holder, take off the glass rod, put it on the positioning bracket, burn one end of the bulb tube, slowly turn the glass rod, when the time is up, use tweezers in your right hand to quickly cut off the excess bulb tube and remove it; S11. Cutting process of lower glass rod: cut off the excess part according to the required length of the lower glass rod, and pack them in the same number and length; S12. Adjust the flame of the lamp holder and preheat the fire, place the cut end of the lower glass rod neatly on the preheating fire for preheating, hold the lamp holder on the glass rod with your left hand and burn it until it is soft, then quickly insert the metal wire into the pores of the glass rod with your right hand and hold it parallel to the glass rod, burn it towards the middle of the wire in the pores of the glass rod until the wire and the glass rod turn red and completely fuse, after burning, align the burned part with the air outlet to cool, and shape the glass rod, do not bend or deform, and after it is firm, place it on the electric furnace for stress relief, which takes about 15 minutes, remove it and cool it, then pack it, and check the burned part with a stress meter to see if the stress is relieved; S13. Upper body wire connection process: adjust the lamp flame and preheating fire, arrange the cut end of the upper body glass rod neatly on the preheating fire for preheating, hold the upper lamp of the glass rod with your left hand and burn it to a soft state, then quickly insert the other end of the metal wire connected to the lower body glass rod into the pores of the glass rod with your right hand and hold it to keep it parallel to the glass rod, burn it towards the middle position of the wire in the pores of the glass rod until the wire and the glass rod turn red and completely fuse, after burning, align the burned part with the air outlet to cool, and shape the glass rod, which cannot be bent or deformed. After it is firm, place it on the electric furnace for stress relief, which takes about 15 minutes, remove it and cool it, then pack it, and use a stress meter to check the burned part to see if the stress is relieved; S14. Aging process: turn on the oven, set the time and temperature, break off the small section of the glass rod reserved on the upper body with pliers, tie the upper and lower parts of the glass rod into a bundle with wire, 100 pieces in a bundle, with both ends neat, put the tied glass rods into the oven, lay them flat and neatly, wait for the oven to stop keeping warm to about 50°C, the door is allowed to open an angle to alternate between hot and cold, but it cannot be fully opened, wait until the temperature reaches the room temperature value before taking out the glass rod; S15. Vacuum liquid adding process: Place the glass rod upside down in the liquid adding barrel, tie the lower body with a rubber strip after filling so that it does not fall apart, put the liquid adding barrel filled with the glass rod into the vacuum liquid adding barrel, insert the liquid outlet hose into the liquid inlet joint at the bottom of the liquid adding barrel and fix it so that it does not loosen and keeps it sealed, cover the barrel cover and lock all screws to ensure sealing, except for the vacuum valve, all other valves are closed tightly, turn on the vacuum pump to evacuate the vacuum to -0.1MPA, and keep it for 2H without leakage, turn off the vacuum valve and the vacuum pump power supply, turn on the drain valve, observe that the liquid storage bottle has a liquid addition volume of 1.5L and close it, then turn on the vacuum pump power supply and the vacuum valve, the vacuum degree is -0.1MPA, and keep it for 30 minutes without leakage, turn off the vacuum valve and the vacuum pump power supply, open the air inlet valve, loosen the barrel cover screws to open the lid; S16. Constant temperature bath rehydration process: open the corresponding constant temperature bath, set the rehydration temperature, wait until the temperature is constant, slowly insert the lower body of the glass rod into the liquid in the constant temperature bath, the immersion depth is 10-15mm above the liquid surface, the upper body is placed flat, and the excess liquid in the glass rod is drained until no liquid is discharged, and the top of the upper body is wrapped with a sealed bag, and nitrogen is filled into the sealed bag until the sealed bag is bulged, take out the glass rod and clean the lower body, and place them neatly one by one; S17 Capping process: adjust the flame of the lamp holder and the preheating fire, place the cut end of the upper glass rod neatly on the preheating fire for preheating, hold the lamp holder on the glass rod with your left hand and burn it until it is sealed, and quickly pass the temperature-sensing package on the preheating fire with your right hand to make the inner hole of the top of the upper body swell out a safety bubble. After capping, put the top of the glass rod on the electric furnace to de-stress for about 15 minutes, remove it to cool, and use a stress meter to check the burned joint to see if the stress has been removed; S18. Surface cleaning process: Clean the surface of the glass rod with gauze and alcohol, and classify and bundle it into warehouse according to the temperature range and specifications.