A flux constant temperature heating device

Abstract

This utility model relates to a flux constant-temperature heating device, comprising a water tank disposed on one side of a welding machine; a flux generator disposed inside the water tank; a circulating water pipe connected to the water tank, the circulating water pipe including an inlet pipe, an outlet pipe, and a heating pipe, the inlet pipe for allowing water from the water tank to flow into the heating pipe, the outlet pipe for allowing water from the heating pipe to flow back to the water tank, the heating pipe being located inside the welding machine, and the heating pipe being constructed to utilize the heat from the welding machine to heat the water therein; and a temperature control system for monitoring the water temperature in the water tank and controlling the opening and closing of the inlet pipe and the water tank based on the water temperature. Utilizing the waste heat of the welding machine to heat the circulating water in the water tank eliminates the need for additional heating equipment, reducing energy consumption and production costs; and by monitoring the water temperature in the water tank and controlling the opening and closing of the circulating water pipe through the temperature control system, the water temperature can be precisely controlled, ensuring that the flux is always within the optimal active temperature range, improving brazing quality and reducing brazing defects.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a flux constant temperature heating device. Background Technology

[0002] In brazing, flux plays a crucial role in weld quality. It removes the oxide film from the surface of the base metal and the filler metal, reduces the surface tension of the liquid filler metal, and allows the filler metal to spread and fill gaps better. However, the performance of flux is closely related to temperature. If the temperature is too low, the flux has poor activity and insufficient fluidity, and the filler metal cannot fully wet the base metal, which can easily lead to incomplete welds or missed welds. If the temperature is too high, the flux will decompose and volatilize prematurely, losing its fluxing effect and possibly producing harmful gases, which can affect the quality of the weld joint and cause defects such as porosity and cracks.

[0003] Current flux heating devices on the market generally suffer from poor temperature control accuracy, poor uniformity, and high energy consumption, making them unsuitable for the increasingly stringent requirements of brazing processes. Therefore, the development of a precise and efficient constant-temperature heating device for brazing flux is of great practical significance. Utility Model Content

[0004] This utility model provides a flux constant temperature heating device, which ensures that the flux is always in the optimal temperature state during use through precise temperature control and reasonable structural layout, thereby improving brazing quality and reducing the defect rate. At the same time, it can reduce energy consumption and production costs by using the waste heat of the welding machine to heat the water temperature.

[0005] This utility model provides a flux constant temperature heating device, comprising: A water tank is located on one side of the welding machine; A flux generator is installed inside the water tank, and the flux generator is used to deliver flux to the welding machine; A circulating water pipe, connected to the water tank, includes an inlet pipe, an outlet pipe, and a heating pipe. The first ends of the inlet and outlet pipes are located inside the water tank, and the second ends of the inlet and outlet pipes are connected to the heating pipe. The inlet pipe allows water from the water tank to flow into the heating pipe, and the outlet pipe allows water from the heating pipe to flow back into the water tank. The heating pipe is located inside the welding machine and is configured to heat the water therein using the heat from the welding machine. A temperature control system is used to monitor the temperature of the water in the water tank and control the connection between the water inlet pipe and the water tank based on the water temperature.

[0006] This utility model relates to a flux constant temperature heating device, which utilizes the waste heat of the welding machine to heat the circulating water in the water tank, eliminating the need for additional heating equipment and reducing energy consumption and production costs. Furthermore, the temperature control system monitors the water temperature in the tank and controls the connection and disconnection of the inlet pipe to the tank, thereby controlling the heating and stopping of the circulating water. This precise temperature control ensures the flux remains within its optimal activity temperature range, improving brazing quality and reducing brazing defects. The temperature control system automatically adjusts the circulation of the circulating water pipe according to the water temperature, reducing operational difficulty and increasing production efficiency.

[0007] In one embodiment, the temperature control system includes: A temperature sensor, installed inside the water tank, is used to monitor the temperature of the water inside the tank; and The intelligent temperature control box is connected to the temperature sensor.

[0008] In this embodiment, the intelligent temperature control box compares the temperature value transmitted by the temperature sensor with a preset temperature range within the box to control the opening and closing of the circulating water pipe, thereby controlling the circulation and heating of water in the tank or stopping the heating process. Through the collaboration of the high-precision temperature sensor and the intelligent temperature control box, precise control of the flux heating temperature is achieved, ensuring the flux is always at its optimal activity temperature, significantly improving brazing quality and reducing welding defects.

[0009] In one embodiment, a water pump is provided at the first end of the water inlet pipe. The water pump is connected to the intelligent temperature control box, which controls the start and stop of the water pump based on the temperature measured by the temperature sensor.

[0010] In this embodiment, the intelligent temperature control box automatically controls the start and stop of the water pump based on the temperature detected by the temperature sensor. When the water pump starts, it pumps water from the water tank into the inlet pipe and into the heating pipe for heating. Then, the water flows back into the water tank through the outlet pipe. The water pump continuously delivers the low-temperature water from the water tank to the circulating water pipe for heating. When the required temperature is reached, the water pump stops. Through the linkage of the temperature sensor, the intelligent temperature control box, and the water pump, continuous heating and precise temperature control of the water in the water tank are achieved. This allows for precise control of the flux temperature in the flux generator to be maintained within the optimal activity temperature range, thereby improving welding quality.

[0011] In one embodiment, when the water temperature in the water tank is lower than the minimum temperature in the set range, the intelligent temperature control box controls the water pump to turn on, so as to pump the water in the water tank to the water inlet pipe, and then the water enters the heating pipe in the welding machine through the water inlet pipe for heating, and then flows back to the water tank through the water outlet pipe. When the water temperature in the water tank is higher than the highest temperature in the set range, the intelligent temperature control box controls the water pump to shut down.

[0012] In this embodiment, a temperature range is preset in the intelligent temperature control box. When the temperature sensor detects that the water temperature in the tank is lower than the minimum temperature of the set range, the intelligent temperature control box automatically controls the water pump to turn on, so that the water in the tank is pumped to the inlet pipe and heated in the heating pipe before flowing back to the tank, thereby heating the water in the tank. When the temperature sensor detects that the water temperature in the tank is higher than the maximum temperature of the set range, the intelligent temperature control box automatically controls the water pump to turn off, and the water in the tank stops heating, thus realizing automatic control of the water temperature in the tank and keeping the water temperature in the tank within a constant range.

[0013] In one embodiment, the water temperature in the water tank is set within a range of 20°C to 45°C.

[0014] In this embodiment, the optimal activation temperature range of the brazing flux is between 20℃ and 45℃. If the flux temperature is below 20℃, it is prone to solidification, resulting in poor fluidity and difficulty in vaporization within the flux generator. If the flux temperature is above 45℃, the flux will decompose and volatilize prematurely, losing its fluxing effect and affecting the welding quality. This invention sets the water temperature range in the water tank to 20℃ to 45℃. By heating the flux with water, the flux temperature is maintained within the optimal activation temperature range, thereby ensuring the flux's activity and fluidity, and thus guaranteeing the welding quality.

[0015] In one embodiment, the intelligent temperature control box is provided with a display area for displaying the temperature of the water detected by the temperature sensor.

[0016] In one embodiment, the heating element is a metal heat-conducting pipe, and the water inlet pipe and / or the water outlet pipe is a flexible hose, the end of which is sealed to the heating element.

[0017] In this embodiment, the heating tube is a metal heat-conducting tube with good thermal conductivity, which can quickly raise the temperature of the water inside the heating tube. The inlet pipe and / or outlet pipe is a flexible tube. The connection through the flexible tube is more conducive to the structural layout and reduces the cost of the circulating water pipe. The end of the flexible tube is sealed to the heating tube to prevent water leakage.

[0018] In one embodiment, the heating tube is wound around the vertical center line of the welding machine in one or more turns.

[0019] In this embodiment, the heating tube is coiled into one or more loops around the vertical center line of the welding machine. This increases the length of the heating tube and the heating area, allowing the water to be fully heated as it flows through the heating tube, thereby rapidly increasing the water temperature in the water tank. It also ensures that the heating tube is located in the center of the welding machine, guaranteeing the heating effect.

[0020] In one embodiment, the flux generator is completely immersed in the water in the tank.

[0021] In this embodiment, the flux generator is completely immersed in the water in the tank. That is, the water in the tank completely surrounds the flux generator, which increases the contact area between the flux generator and the water in the tank. This results in a more uniform temperature distribution of the flux during the heating process, thus making the solder joint quality more stable and reliable.

[0022] In one embodiment, a flux storage tank is connected to the top of the flux generator, and a delivery pipe is connected to one side of the flux generator, which is connected to the welding part of the welding machine.

[0023] Compared with the prior art, the advantages of this utility model are as follows: the water in the water tank enters the heating pipe through the inlet pipe, is heated by the heat of the welding machine, and then flows back to the water tank through the outlet pipe. The residual heat of the welding machine is used to heat the circulating water in the water tank, eliminating the need for additional heating equipment, thus reducing energy consumption and production costs. Furthermore, the temperature control system monitors the water temperature in the water tank and controls the opening and closing of the inlet pipe and the water tank, thereby controlling the heating and stopping of the circulating water. This allows for precise temperature control, ensuring that the flux is always within the optimal active temperature range, improving brazing quality, reducing brazing defects, and automatically adjusting the circulation of the circulating water pipe according to the water temperature, reducing operational difficulty and improving production efficiency. Attached Figure Description

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of the flux constant temperature heating device of this utility model; Figure 2 yes Figure 1 Schematic diagram of the intermediate water tank and temperature control system; Figure 3 yes Figure 1 Schematic diagram of the structure of the intermediate coil; Figure 4 This is a schematic diagram of another embodiment of the coil in the flux constant temperature heating device of this utility model; Figure label: 1. Water tank; 2. Welding machine; 21. Fire grill; 3. Circulating water pipe; 31. Inlet pipe; 32. Outlet pipe; 33. Heating pipe; 4. Temperature sensor; 41. Connecting wiring; 5. Intelligent temperature control box; 51. Display area; 52. Power cord; 6. Water pump; 61. Water pump control circuit; 7. Flux generator; 71. Flux storage tank; 72. Delivery pipeline. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] In brazing, flux plays a crucial role in weld quality. It removes the oxide film from the surface of the base metal and the filler metal, reduces the surface tension of the liquid filler metal, and allows the filler metal to spread and fill gaps better. However, the performance of flux is closely related to temperature. If the temperature is too low, the flux has poor activity and insufficient fluidity, and the filler metal cannot fully wet the base metal, which can easily lead to incomplete welds or missed welds. If the temperature is too high, the flux will decompose and volatilize prematurely, losing its fluxing effect and possibly producing harmful gases, which can affect the quality of the weld joint and cause defects such as porosity and cracks.

[0030] Therefore, this utility model provides a flux constant temperature heating device, which ensures that the flux is always in the optimal temperature state during use through precise temperature control and reasonable structural layout, thereby improving brazing quality and reducing the defect rate. At the same time, it can reduce energy consumption and production costs by using the waste heat of the welding machine to heat the water temperature.

[0031] like Figure 1As shown, this utility model provides a flux constant temperature heating device, including a water tank 1, a flux generator 7 installed in the water tank 1, a circulating water pipe 3 connected to the water tank 1, and a temperature control system for monitoring the temperature of the water in the water tank 1. The temperature control system monitors the water temperature in the water tank 1 and controls the opening and closing of the circulating water pump 6 based on the water temperature. When the circulating water pump 6 is turned on, water from the water tank 1 is pumped into the circulating water pipe 3, enters the heating pipe 33 through the inlet pipe 31, is heated by the heat from the welding machine 2, and then flows back to the water tank 1 through the outlet pipe 32. The residual heat from the welding machine 2 is used to heat the circulating water in the water tank 1, eliminating the need for additional heating equipment, reducing energy consumption and production costs. Furthermore, by monitoring the water temperature in the water tank 1 and controlling the opening and closing of the circulating water pipe 3 through the temperature control system, the water temperature can be precisely controlled, ensuring that the flux is always within the optimal active temperature range, improving brazing quality, reducing brazing defects, and the temperature control system can automatically adjust the circulation of the circulating water pipe 3 according to the water temperature, reducing operational difficulty and improving production efficiency.

[0032] Example 1 The flux constant temperature heating device includes a water tank 1, a flux generator 7 disposed in the water tank 1, a circulating water pipe 3 connected to the water tank 1, and a temperature control system for monitoring the temperature of the water in the water tank 1. The water tank 1 is disposed on one side of the welding machine 2, and the flux generator 7 is disposed in the water tank 1. The flux generator 7 is used to deliver flux to the welding machine 2.

[0033] A circulating water pipe 3 is connected to a water tank 1. The circulating water pipe 3 includes an inlet pipe 31, an outlet pipe 32, and a heating pipe 33. The first end of the inlet pipe 31 and the first end of the outlet pipe 32 are located inside the water tank 1. The second end of the inlet pipe 31 and the second end of the outlet pipe 32 are connected to the heating pipe 33. The inlet pipe 31 allows water from the water tank 1 to flow into the heating pipe 33, and the outlet pipe 32 allows water from the heating pipe 33 to flow back to the water tank 1. The heating pipe 33 is located inside the welding machine 2 and is configured to use the heat from the welding machine 2 to heat the water therein. This invention continuously sends water from the water tank 1 to the welding machine 2 for heating via the circulating water pipe 3, utilizing the waste heat of the welding machine 2 to circulate and heat the water in the water tank 1, eliminating the need for additional heating equipment and reducing energy consumption and production costs.

[0034] The temperature control system monitors the water temperature in water tank 1 and controls the connection between the inlet pipe 31 and water tank 1 based on the water temperature, thereby controlling the opening and closing of the circulating water pipe 3. The temperature control system precisely controls the water temperature, ensuring the flux remains at its optimal activity temperature, improving brazing quality, reducing brazing defects, and automatically adjusting the circulation of the circulating water pipe 3 according to the water temperature, reducing operational difficulty and increasing production efficiency.

[0035] In this embodiment, the temperature control system includes a temperature sensor 4 and an intelligent temperature control box 5. The temperature sensor 4 is installed inside the water tank 1 to monitor the temperature of the water inside the tank 1. Specifically, the temperature sensor 4 is located in the lower middle part of the water tank 1 and is completely immersed in the water, allowing it to accurately sense the temperature of the water inside the tank 1 in real time. In this embodiment, the temperature sensor 4 is a high-precision platinum resistance temperature sensor, which offers higher sensing accuracy and greater precision.

[0036] It should be noted that the intelligent temperature control box 5 can be a microcomputer controller. The intelligent temperature control box 5 is connected to the temperature sensor 4 via connecting line 41. The intelligent temperature control box 5 compares the temperature value transmitted by the temperature sensor 4 with a preset temperature range within the intelligent temperature control box 5, thereby controlling the opening and closing of the circulating water pipe 3, and consequently controlling the circulation heating or stopping of the water in the water tank 1. Through the collaboration of the high-precision temperature sensor 4 and the intelligent temperature control box 5, precise control of the flux heating temperature is achieved, ensuring that the flux is always at its optimal active temperature, significantly improving brazing quality and reducing welding defects.

[0037] In a preferred embodiment, a water pump 6 is provided at the first end of the water inlet pipe 31. The water pump 6 is connected to the intelligent temperature control box 5 through the water pump control line 61. The intelligent temperature control box 5 controls the start and stop of the water pump 6 according to the temperature value detected by the temperature sensor 4, thereby controlling the opening and closing of the circulating water pipe 3.

[0038] It should be noted that the flux generator 7 is immersed in the water in the water tank 1. That is to say, the water level in the water tank 1 must be high enough to completely cover the flux generator 7, so that the contact area between the flux generator 7 and the water in the water tank 1 is large, and the temperature of the flux is evenly distributed during the heating process, thereby making the solder joint quality more stable and reliable.

[0039] During use, water pump 6 pumps water from water tank 1 into inlet pipe 31 and then into heating pipe 33, where it is heated by the heat from welding machine 2. The heated water then flows back to water tank 1 through outlet pipe 32, thus heating and circulating the water in water tank 1. This not only increases the water temperature but also enhances temperature uniformity. The heated water then heats flux generator 7, ensuring that the flux temperature in flux generator 7 remains within the optimal activity temperature range. This prevents flux from condensing at low temperatures and volatilizing prematurely at high temperatures, effectively improving welding quality.

[0040] It should be noted that in this embodiment, the welding machine 2 is an automatic welding machine, and the flame 21 inside the welding machine 2 generates a flame for welding heating. A production line is provided at the rear of the welding machine 2, on which multiple workpieces to be welded are placed. A flux storage tank 71 is connected to the top of the flux generator 7, and a delivery pipe 72 is connected to one side of the flux generator 7. The delivery pipe 72 is connected to the welding part of the welding machine 2; specifically, the delivery pipe 72 is connected to the welding torch of the welding machine 2. Because the flux is heated to its optimal activity temperature inside the flux generator 7, the flux has good fluidity, is vaporized inside the flux generator 7, and is delivered to the welding torch, improving welding quality and reducing the defect rate.

[0041] Example 2 The flux constant temperature heating device includes a water tank 1, a flux generator 7 disposed in the water tank 1, a circulating water pipe 3 connected to the water tank 1, and a temperature control system for monitoring the temperature of the water in the water tank 1. The water tank 1 is disposed on one side of the welding machine 2, and the flux generator 7 is disposed in the water tank 1. The flux generator 7 is used to deliver flux to the welding machine 2.

[0042] A circulating water pipe 3 is connected to a water tank 1. The circulating water pipe 3 includes an inlet pipe 31, an outlet pipe 32, and a heating pipe 33. The first end of the inlet pipe 31 and the first end of the outlet pipe 32 are located inside the water tank 1. The second end of the inlet pipe 31 and the second end of the outlet pipe 32 are connected to the heating pipe 33. The inlet pipe 31 allows water from the water tank 1 to flow into the heating pipe 33, and the outlet pipe 32 allows water from the heating pipe 33 to flow back to the water tank 1. The heating pipe 33 is located inside the welding machine 2 and is configured to use the heat from the welding machine 2 to heat the water therein. This invention continuously sends water from the water tank 1 to the welding machine 2 for heating via the circulating water pipe 3, utilizing the waste heat of the welding machine 2 to circulate and heat the water in the water tank 1, eliminating the need for additional heating equipment and reducing energy consumption and production costs.

[0043] The temperature control system monitors the water temperature in water tank 1 and controls the connection between the inlet pipe 31 and water tank 1 based on the water temperature, thereby controlling the opening and closing of the circulating water pipe 3. The temperature control system precisely controls the water temperature, ensuring the flux remains at its optimal activity temperature, improving brazing quality, reducing brazing defects, and automatically adjusting the circulation of the circulating water pipe 3 according to the water temperature, reducing operational difficulty and increasing production efficiency.

[0044] In this embodiment, the temperature control system includes a temperature sensor 4 and an intelligent temperature control box 5. The temperature sensor 4 is installed inside the water tank 1 to monitor the temperature of the water inside the tank 1. Specifically, the temperature sensor 4 is located in the lower middle part of the water tank 1 and is completely immersed in the water, allowing it to accurately sense the temperature of the water inside the tank 1 in real time. In this embodiment, the temperature sensor 4 is a high-precision platinum resistance temperature sensor, which offers higher sensing accuracy and greater precision.

[0045] It should be noted that the intelligent temperature control box 5 can be a microcomputer controller. The intelligent temperature control box 5 is connected to the temperature sensor 4 via connecting line 41. The intelligent temperature control box 5 compares the temperature value transmitted by the temperature sensor 4 with a preset temperature range within the intelligent temperature control box 5, thereby controlling the opening and closing of the circulating water pipe 3, and consequently controlling the circulation heating or stopping of the water in the water tank 1. Through the collaboration of the high-precision temperature sensor 4 and the intelligent temperature control box 5, precise control of the flux heating temperature is achieved, ensuring that the flux is always at its optimal active temperature, significantly improving brazing quality and reducing welding defects.

[0046] In a preferred embodiment, a water pump 6 is provided at the first end of the water inlet pipe 31. The water pump 6 is connected to the intelligent temperature control box 5 through the water pump control line 61. The intelligent temperature control box 5 controls the start and stop of the water pump 6 according to the temperature value detected by the temperature sensor 4, thereby controlling the opening and closing of the circulating water pipe 3.

[0047] It should be noted that the flux generator 7 is immersed in the water in the water tank 1. That is to say, the water level in the water tank 1 must be high enough to completely cover the flux generator 7, so that the contact area between the flux generator 7 and the water in the water tank 1 is large, and the temperature of the flux is evenly distributed during the heating process, thereby making the solder joint quality more stable and reliable.

[0048] During use, water pump 6 pumps water from water tank 1 into inlet pipe 31 and then into heating pipe 33, where it is heated by the heat from welding machine 2. The heated water then flows back to water tank 1 through outlet pipe 32, thus heating and circulating the water in water tank 1. This not only increases the water temperature but also enhances temperature uniformity. The heated water then heats flux generator 7, ensuring that the flux temperature in flux generator 7 remains within the optimal activity temperature range. This prevents flux from condensing at low temperatures and volatilizing prematurely at high temperatures, effectively improving welding quality.

[0049] It should be noted that in this embodiment, the welding machine 2 is an automatic welding machine, and the flame 21 inside the welding machine 2 generates a flame for welding heating. A production line is provided at the rear of the welding machine 2, on which multiple workpieces to be welded are placed. A flux storage tank 71 is connected to the top of the flux generator 7, and a delivery pipe 72 is connected to one side of the flux generator 7. The delivery pipe 72 is connected to the welding part of the welding machine 2; specifically, the delivery pipe 72 is connected to the welding torch of the welding machine 2. Because the flux is heated to its optimal activity temperature inside the flux generator 7, the flux has good fluidity, is vaporized inside the flux generator 7, and is delivered to the welding torch, improving welding quality and reducing the defect rate.

[0050] It should be noted that the intelligent temperature control box 5 presets the temperature range of the water in the water tank 1. When the water temperature in the water tank 1 is lower than the minimum temperature of the preset range, the intelligent temperature control box 5 controls the water pump 6 to turn on, so that the water in the water tank 1 is pumped to the inlet pipe 31, and then enters the heating pipe 33 in the welding machine 2 through the inlet pipe 31 for heating, and then flows back to the water tank 1 through the outlet pipe 32. When the water temperature in the water tank 1 is higher than the maximum temperature of the preset range, the intelligent temperature control box 5 controls the water pump 6 to turn off.

[0051] It should be noted that the temperature range can be adjusted according to actual needs depending on the different fluxes used.

[0052] In this embodiment, the water temperature in tank 1 is between 20℃ and 45℃. The optimal active temperature range for the brazing flux in this embodiment is also between 20℃ and 45℃. If the flux temperature is below 20℃, it easily solidifies, resulting in poor fluidity and difficulty in vaporizing within the flux generator 7. If the flux temperature is above 45℃, the flux will decompose and volatilize prematurely, losing its fluxing effect and affecting the welding quality. This invention sets the water temperature in tank 1 between 20℃ and 45℃, heating the flux with the water temperature to maintain its temperature within the optimal active temperature range, thereby ensuring the flux's activity and fluidity, and thus guaranteeing welding quality.

[0053] In one embodiment, the intelligent temperature control box 5 is provided with a display area 51 for displaying the temperature of the water detected by the temperature sensor 4.

[0054] In another embodiment, the intelligent temperature control box 5 is also equipped with a running indicator light and a stop indicator light. When the temperature sensor 4 detects that the water temperature in the water tank 1 is lower than the set minimum temperature, the running indicator light illuminates. At this time, the intelligent temperature control box 5 controls the water pump 6 to run, continuously pumping water from the water tank 1 to the circulating water pipe 3 and into the heating tube 33 in the welding machine 2 for heating, and then returning to the water tank 1. Until the temperature sensor 4 detects that the water temperature in the water tank 1 has reached the set maximum temperature, the stop indicator light illuminates. At this time, the intelligent temperature control box 5 controls the water pump 6 to stop, and the water in the water tank 1 stops heating. Through the linkage of the temperature sensor 4, the intelligent temperature control box 5, and the water pump 6, continuous heating and precise temperature control of the water in the water tank 1 are achieved, thereby accurately controlling the temperature of the flux in the flux generator 7 to maintain within the optimal active temperature range, so as to improve the welding quality.

[0055] Example 3 The flux constant temperature heating device includes a water tank 1, a flux generator 7 disposed in the water tank 1, a circulating water pipe 3 connected to the water tank 1, and a temperature control system for monitoring the temperature of the water in the water tank 1. The water tank 1 is disposed on one side of the welding machine 2, and the flux generator 7 is disposed in the water tank 1. The flux generator 7 is used to deliver flux to the welding machine 2.

[0056] A circulating water pipe 3 is connected to a water tank 1. The circulating water pipe 3 includes an inlet pipe 31, an outlet pipe 32, and a heating pipe 33. The first end of the inlet pipe 31 and the first end of the outlet pipe 32 are located inside the water tank 1. The second end of the inlet pipe 31 and the second end of the outlet pipe 32 are connected to the heating pipe 33. The inlet pipe 31 allows water from the water tank 1 to flow into the heating pipe 33, and the outlet pipe 32 allows water from the heating pipe 33 to flow back to the water tank 1. The heating pipe 33 is located inside the welding machine 2 and is configured to use the heat from the welding machine 2 to heat the water therein. This invention continuously sends water from the water tank 1 to the welding machine 2 for heating via the circulating water pipe 3, utilizing the waste heat of the welding machine 2 to circulate and heat the water in the water tank 1, eliminating the need for additional heating equipment and reducing energy consumption and production costs.

[0057] The temperature control system monitors the water temperature in water tank 1 and controls the connection between the inlet pipe 31 and water tank 1 based on the water temperature, thereby controlling the opening and closing of the circulating water pipe 3. The temperature control system precisely controls the water temperature, ensuring the flux remains at its optimal activity temperature, improving brazing quality, reducing brazing defects, and automatically adjusting the circulation of the circulating water pipe 3 according to the water temperature, reducing operational difficulty and increasing production efficiency.

[0058] In this embodiment, the temperature control system includes a temperature sensor 4 and an intelligent temperature control box 5. The temperature sensor 4 is installed inside the water tank 1 to monitor the temperature of the water inside the tank 1. Specifically, the temperature sensor 4 is located in the lower middle part of the water tank 1 and is completely immersed in the water, allowing it to accurately sense the temperature of the water inside the tank 1 in real time. In this embodiment, the temperature sensor 4 is a high-precision platinum resistance temperature sensor, which offers higher sensing accuracy and greater precision.

[0059] It should be noted that the intelligent temperature control box 5 can be a microcomputer controller. The intelligent temperature control box 5 is connected to the temperature sensor 4 via connecting line 41. The intelligent temperature control box 5 compares the temperature value transmitted by the temperature sensor 4 with a preset temperature range within the intelligent temperature control box 5, thereby controlling the opening and closing of the circulating water pipe 3, and consequently controlling the circulation heating or stopping of the water in the water tank 1. Through the collaboration of the high-precision temperature sensor 4 and the intelligent temperature control box 5, precise control of the flux heating temperature is achieved, ensuring that the flux is always at its optimal active temperature, significantly improving brazing quality and reducing welding defects.

[0060] In a preferred embodiment, a water pump 6 is provided at the first end of the water inlet pipe 31. The water pump 6 is connected to the intelligent temperature control box 5 through the water pump control line 61. The intelligent temperature control box 5 controls the start and stop of the water pump 6 according to the temperature value detected by the temperature sensor 4, thereby controlling the opening and closing of the circulating water pipe 3.

[0061] It should be noted that the flux generator 7 is immersed in the water in the water tank 1. That is to say, the water level in the water tank 1 must be high enough to completely cover the flux generator 7, so that the contact area between the flux generator 7 and the water in the water tank 1 is large, and the temperature of the flux is evenly distributed during the heating process, thereby making the solder joint quality more stable and reliable.

[0062] During use, water pump 6 pumps water from water tank 1 into inlet pipe 31 and then into heating pipe 33, where it is heated by the heat from welding machine 2. The heated water then flows back to water tank 1 through outlet pipe 32, thus heating and circulating the water in water tank 1. This not only increases the water temperature but also enhances temperature uniformity. The heated water then heats flux generator 7, ensuring that the flux temperature in flux generator 7 remains within the optimal activity temperature range. This prevents flux from condensing at low temperatures and volatilizing prematurely at high temperatures, effectively improving welding quality.

[0063] It should be noted that in this embodiment, the welding machine 2 is an automatic welding machine, and the flame 21 inside the welding machine 2 generates a flame for welding heating. A production line is provided at the rear of the welding machine 2, on which multiple workpieces to be welded are placed. A flux storage tank 71 is connected to the top of the flux generator 7, and a delivery pipe 72 is connected to one side of the flux generator 7. The delivery pipe 72 is connected to the welding part of the welding machine 2; specifically, the delivery pipe 72 is connected to the welding torch of the welding machine 2. Because the flux is heated to its optimal activity temperature inside the flux generator 7, the flux has good fluidity, is vaporized inside the flux generator 7, and is delivered to the welding torch, improving welding quality and reducing the defect rate.

[0064] It should be noted that the intelligent temperature control box 5 presets the temperature range of the water in the water tank 1. When the water temperature in the water tank 1 is lower than the minimum temperature of the preset range, the intelligent temperature control box 5 controls the water pump 6 to turn on, so that the water in the water tank 1 is pumped to the inlet pipe 31, and then enters the heating pipe 33 in the welding machine 2 through the inlet pipe 31 for heating, and then flows back to the water tank 1 through the outlet pipe 32. When the water temperature in the water tank 1 is higher than the maximum temperature of the preset range, the intelligent temperature control box 5 controls the water pump 6 to turn off.

[0065] It should be noted that the temperature range can be adjusted according to actual needs depending on the different fluxes used.

[0066] In this embodiment, the water temperature in tank 1 is between 20℃ and 45℃. The optimal active temperature range for the brazing flux in this embodiment is also between 20℃ and 45℃. If the flux temperature is below 20℃, it easily solidifies, resulting in poor fluidity and difficulty in vaporizing within the flux generator 7. If the flux temperature is above 45℃, the flux will decompose and volatilize prematurely, losing its fluxing effect and affecting the welding quality. This invention sets the water temperature in tank 1 between 20℃ and 45℃, heating the flux with the water temperature to maintain its temperature within the optimal active temperature range, thereby ensuring the flux's activity and fluidity, and thus guaranteeing welding quality.

[0067] In one embodiment, the intelligent temperature control box 5 is provided with a display area 51 for displaying the temperature of the water detected by the temperature sensor 4.

[0068] In another embodiment, the intelligent temperature control box 5 is also equipped with a running indicator light and a stop indicator light. When the temperature sensor 4 detects that the water temperature in the water tank 1 is lower than the set minimum temperature, the running indicator light illuminates. At this time, the intelligent temperature control box 5 controls the water pump 6 to run, continuously pumping water from the water tank 1 to the circulating water pipe 3 and into the heating tube 33 in the welding machine 2 for heating, and then returning to the water tank 1. Until the temperature sensor 4 detects that the water temperature in the water tank 1 has reached the set maximum temperature, the stop indicator light illuminates. At this time, the intelligent temperature control box 5 controls the water pump 6 to stop, and the water in the water tank 1 stops heating. Through the linkage of the temperature sensor 4, the intelligent temperature control box 5, and the water pump 6, continuous heating and precise temperature control of the water in the water tank 1 are achieved, thereby accurately controlling the temperature of the flux in the flux generator 7 to maintain within the optimal active temperature range, so as to improve the welding quality.

[0069] It should be noted that the heating tube 33 is a metal heat pipe. In this embodiment, the heating tube 33 is made of high-purity copper tube material. Copper tube has excellent thermal conductivity and can quickly heat the water in the heating tube 33.

[0070] It should be noted that the inlet pipe 31 and / or outlet pipe 32 are flexible hoses, preferably metal flexible hoses. Connecting with flexible hoses is more conducive to layout and reduces the cost of the circulating water pipe 3.

[0071] It should be noted that the end of the hose is sealed to the heating tube 33, including but not limited to welding, to prevent water leakage.

[0072] like Figure 3 As shown, in this embodiment, the copper tube is bent into a coil, and the coil is wound around the vertical center line of the welding machine 2. The length of the heating tube 33 can be increased by the coil, so that the water can be fully heated in the coil and the water temperature can be increased quickly.

[0073] Example 4 The only difference between this embodiment and Embodiment 3 is the shape of the heating tube; all other structures are the same, so they will not be described in detail here.

[0074] like Figure 4 As shown, in this embodiment, the heating tube 33 is spirally wound around the vertical center line of the welding machine 2 in multiple turns, further increasing the length of the heating tube 33 and increasing the heating area, so that the water is fully heated during the flow of water in the heating tube 33, thereby rapidly increasing the water temperature in the water tank 1.

[0075] Example 5 The specific implementation process of this utility model constant temperature heating device is as follows.

[0076] Setup: First, install the heating element 33 at the top of the welding machine 2, approximately 1 meter above the flame bar 21. Adjustments can be made as needed to ensure optimal heating. Then, install the high-precision platinum resistance temperature sensor 4 in the lower part of the water tank 1 to ensure accurate measurement of the water temperature. Finally, install the intelligent temperature control box 5, connect the water pump 6 and the circulating water pipe 3, and connect the water pump 6 to the first end of the inlet pipe 31.

[0077] Debugging and Calibration: After the device is set up, debugging is performed. Connect the power cord 52 of the intelligent temperature control box 5 to the power supply. Use a standard thermometer to calibrate the temperature sensor 4. Specifically, compare the temperature value detected by the standard thermometer with the temperature value displayed by the intelligent temperature control box 5 to verify the accuracy of the temperature sensor 4. Then, set different target temperature ranges or temperature values ​​on the intelligent temperature control box 5 to test whether the temperature control system can control the water temperature in the water tank 1 within the set target temperature range or reach the set temperature value.

[0078] Practical Application: In a brazing production workshop, add clean water to water tank 1, ensuring the water level is higher than the top surface of flux generator 7, so that flux generator 7 is completely submerged in water. Then, set the target temperature range on the intelligent temperature control box 5 and start the constant temperature heating device of this invention. The device automatically completes operations such as water temperature heating, constant temperature control, and circulating heating, thereby providing flux with constant temperature and stable performance for brazing operations, ensuring brazing quality and production efficiency.

[0079] The flux constant temperature heating device of this utility model has the following beneficial effects: (1) Precise temperature control: Through the cooperation of temperature sensor 4 and intelligent temperature control box 5, the temperature of flux can be precisely controlled to ensure that the flux is always within the optimal active temperature range, which greatly improves the brazing quality and reduces welding defects; (2) Uniform heating temperature: Immerse the flux generator 7 in the water tank 1 to heat the flux by water temperature, ensuring uniform heat distribution of the flux and improving the welding effect; (3) Significant energy saving: This utility model uses the waste heat of the welding machine 2 itself to heat the circulating water, without the need to add separate heating equipment, thus reducing energy consumption and production costs; (4) Convenient operation: The intelligent temperature control box 5 has a simple and easy-to-understand operating interface. Operators only need to set parameters, and the device can automatically complete heating, constant temperature control and circulating heating, reducing the difficulty of operation and the labor intensity of personnel.

[0080] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A soldering flux thermostatic heating device, characterized by, include: A water tank is located on one side of the welding machine; A flux generator is installed inside the water tank, and the flux generator is used to deliver flux to the welding machine; A circulating water pipe is connected to the water tank. The circulating water pipe includes an inlet pipe, an outlet pipe, and a heating pipe. The first end of the inlet pipe and the first end of the outlet pipe are located inside the water tank. The second end of the inlet pipe and the second end of the outlet pipe are connected to the heating pipe. The inlet pipe is used to allow water in the water tank to flow into the heating pipe, and the outlet pipe is used to allow water in the heating pipe to flow back to the water tank. The heating pipe is located inside the welding machine and is configured to heat the water therein using the heat from the welding machine. as well as A temperature control system is used to monitor the temperature of the water in the water tank and control the connection between the water inlet pipe and the water tank based on the water temperature.

2. The flux thermostatic heating device according to claim 1, characterized by, The temperature control system includes: A temperature sensor, installed inside the water tank, is used to monitor the temperature of the water inside the tank; and The intelligent temperature control box is connected to the temperature sensor.

3. The flux thermostatic heating device according to claim 2, characterized by, A water pump is installed at the first end of the water inlet pipe. The water pump is connected to the intelligent temperature control box. The intelligent temperature control box controls the start and stop of the water pump based on the temperature measured by the temperature sensor.

4. The flux constant temperature heating device according to claim 3, characterized in that, When the water temperature in the water tank is lower than the minimum temperature in the set range, the intelligent temperature control box controls the water pump to turn on, so that the water in the water tank is pumped to the water inlet pipe, and then enters the heating pipe in the welding machine through the water inlet pipe for heating, and then flows back to the water tank through the water outlet pipe. When the water temperature in the water tank is higher than the highest temperature in the set range, the intelligent temperature control box controls the water pump to shut down.

5. The flux thermostatic heating device according to claim 4, wherein The water temperature in the tank is set within a range of 20℃ to 45℃.

6. The flux thermostatic heating device according to claim 2, wherein The intelligent temperature control box is equipped with a display area to show the water temperature detected by the temperature sensor.

7. The flux thermostatic heating device according to claim 1, wherein The heating element is a metal heat-conducting tube, and the water inlet pipe and / or the water outlet pipe is a flexible hose, with the end of the flexible hose sealed to the heating element.

8. The flux thermostatic heating device according to claim 1, wherein The heating tube is coiled around the vertical center line of the welding machine in one or more loops.

9. The flux thermostatic heating device according to claim 1, wherein The flux generator is completely immersed in the water in the tank.

10. The flux thermostatic heating device according to claim 1, wherein The flux generator is connected to a flux storage tank at the top, and a delivery pipe is connected to one side of the flux generator, which is connected to the welding part of the welding machine.

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