Modular solder paste reflow device with locking function and method of use thereof

Abstract

The present application relates to tin paste temperature return technical field, disclose a kind of modular tin paste temperature return device with locking function and its using method, the modular tin paste temperature return device with locking function, including mainframe shell, the top one end of the mainframe shell is fixedly connected with fixed heating fin, the other end inside of the mainframe shell is opened with the installation slot of opening upward, the installation slot in the mainframe shell is fixedly connected with support rod, the outer wall of the support rod is slidably connected with movable block, the side of the movable block is fixedly connected with spring one, the top of the movable block is fixedly connected with mobile heating fin, the inside of the mainframe shell is installed with jar body. Operator to outside side dials mobile heating fin, drive movable block along support rod sliding stretch spring one, after being put into jar body, unclench external force, the reverse spring force of spring one pushes mobile heating fin to be close to jar body, so that jar body is clamped by fixed heating fin and mobile heating fin, adapt to different jar body diameter, eliminate heating gap to avoid uneven heating.

Description

Technical Field

[0001] This invention relates to the field of solder paste warming technology, specifically to a modular solder paste warming device with a locking function and its usage method. Background Technology

[0002] Solder paste is an indispensable core soldering consumable in SMT surface mount technology. It is usually stored in a low-temperature refrigerated environment throughout the process to prevent oxidation of the alloy solder powder and premature degeneration and failure of the flux components. Before it is used on the SMT production line, the refrigerated solder paste must be taken out of the low-temperature storage environment and placed in a room temperature environment to complete the compliant warming treatment. This allows the overall temperature of the solder paste to rise to the range suitable for the process, eliminates the risk of condensation on the surface of the low-temperature container, and restores the uniform fluidity of the various components inside the paste. This ensures the process stability of subsequent printing, placement, and reflow soldering, and avoids batch soldering defects such as cold solder joints, solder balls, and bridging. The warming of solder paste is an essential pre-process in the SMT production process.

[0003] Existing reheating devices typically have a fixed-size annular heating sleeve inside the chamber, with heating wires pre-embedded in the inner wall of the sleeve. The solder paste container is directly embedded inside the sleeve, and the temperature is raised by radiation and contact heat transfer from the inner wall of the sleeve.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art is that the existing reheating device either uses two heating plates with a completely fixed spacing or a fully enclosed uniform air duct, which cannot be adapted to solder paste cans of different diameters. It can only achieve surface heating for a single specification of can. There will inevitably be gaps of different sizes between cans of other specifications and the heating structure, which directly leads to a significant reduction in heat transfer efficiency, uneven temperature distribution in the cavity, and deviations in the reheating rate at different positions of the can, which easily results in problems such as insufficient local heating and condensation residue. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a modular solder paste warming device with a locking function and its usage method. This solves the problem that existing warming devices cannot be adapted to solder paste cans of different diameters, which directly leads to a significant reduction in heat transfer efficiency, uneven temperature distribution within the cavity, and deviations in the warming rate at different locations within the can, resulting in problems such as insufficient local heating and condensation residue.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular solder paste warming device with locking function, comprising a main housing, a fixed heating element fixedly connected to one end of the top of the main housing, an upward-opening mounting groove inside the other end of the main housing, a support rod fixedly connected to the mounting groove, a movable block slidably connected to the outer wall of the support rod, the outer wall of the movable block slidably connected to the mounting groove, a spring fixedly connected to one side of the movable block, one end of the spring fixedly connected to one side of the mounting groove, the inner wall of the spring fitted onto the outer wall of the support rod, a movable heating element fixedly connected to the top of the movable block, the fixed heating element and the movable heating element being symmetrically arranged, and a tank installed inside the main housing; The main housing is equipped with a locking component, which uses temperature and time as criteria to lock and unlock the tank.

[0007] By adopting the above technical solution, the operator first places the solder paste container to be reheated on the top of the main unit housing. When placing the container, the operator moves the movable heating element outward, pushing the movable heating element and the movable block to slide smoothly along the fixed support rod inside the mounting slot. As the movable block moves, it stretches the first spring. After the first spring is stretched, it generates a reverse force. After the container is completely placed between the two heating elements, under the reverse force of the first spring, the movable block drives the movable heating element to press against the side wall of the container. Finally, the two sides of the container are clamped by the fixed heating element and the movable heating element with adaptive adjustment of position, respectively. This achieves automatic adaptation to containers of different diameters, ensuring that both heating surfaces are in close contact with the outer wall of the container, and avoiding uneven heating caused by heating gaps.

[0008] Preferably, the locking assembly includes a support column, a groove is provided inside the main housing, the bottom of the support column is fixedly connected to the groove, a motor is fixedly connected to the top of the support column, a rotating shaft is fixedly connected to the output end of the motor, an eccentric rod is fixedly connected to the outer wall of the rotating shaft, a mounting frame is fixedly connected to the top of the main housing, a through groove is provided inside the mounting frame, a locking piece is slidably connected in the through groove of the mounting frame, and the eccentric rod will contact one side of the locking piece during operation.

[0009] Preferably, a connecting rod is fixedly connected between the two sides of the mounting frame, a second spring is fixedly connected to one side of the mounting frame, a movable block is fixedly connected to one end of the second spring, the inner wall of the second spring is fitted onto the outer wall of the connecting rod, a rod hole is opened inside the movable block, the movable block is slidably connected to the outer wall of the connecting rod through the cooperation of the rod hole, and the top of the movable block is fixedly connected to the bottom of one end of the locking piece.

[0010] Preferably, a drive gear is fixedly connected to the outer wall of the rotating shaft, a driven gear is meshed with the tooth end of the drive gear, a connecting shaft is fixedly connected to the inner wall of the driven gear, the top end of the connecting shaft is rotatably connected to a groove in the main housing, and the bottom end of the connecting shaft is rotatably connected to the bottom of the main housing.

[0011] Preferably, a driving bevel gear is fixedly connected to the bottom outer wall of the connecting shaft, a support shaft is rotatably connected to the bottom of the main housing, a driven bevel gear is fixedly connected to the outer wall of one end of the support shaft, the driving bevel gear and the driven bevel gear mesh with each other, and a cam is fixedly connected to the other end of the support shaft.

[0012] Preferably, a movable rod is slidably connected through the interior of the main housing, and a connecting plate is fixedly connected to the bottom of the movable rod. When the protruding end of the cam moves, it contacts the bottom of the connecting plate.

[0013] Preferably, a spring three is fixedly connected to the top of the connecting plate, the top of the spring three is fixedly connected to the bottom inner wall of the main housing, the inner wall of the spring three is sleeved on the outer wall of the moving rod, and a top plate is fixedly connected to the top of the moving rod.

[0014] Preferably, a back cover is installed on one side of the main housing, the back cover is positioned to cover the groove of the main housing, and a mounting slot and an insertion strip are fixedly connected to both sides of the main housing, the mounting slot and the insertion strip being compatible with each other.

[0015] Preferably, a rechargeable explosion-proof battery is installed in the groove of the main housing. The rechargeable explosion-proof battery is used to automatically switch battery power supply when the factory loses power, and continuously maintain the timing, temperature control and locking states. An integrated control panel is installed on the top of the mounting frame. The integrated control panel is electrically connected to the fixed heating element, the movable heating element and the motor.

[0016] A method for using modular solder paste with a locking function to reheat includes the following steps: When in use, the operator first moves the movable heating element outward, pushes the movable heating element and the movable block to slide smoothly along the support rod in the mounting slot, stretches the first spring and puts it into the solder paste container to be warmed up. After releasing the external force, the reverse force of the first spring causes the movable heating element to stick to the side wall of the container, and the container is clamped by the fixed heating element and the movable heating element. After clamping, the operator sets the target reheat temperature and duration parameters for the tank through the integrated control panel. The equipment enters the preheating standby state, and the fixed heating element and the moving heating element start heating simultaneously, directly transferring heat to the outer wall of the tank. The power supply status is monitored by a rechargeable explosion-proof battery throughout the process. When the mains power is normal, the explosion-proof battery is charged simultaneously. When the mains power is cut off, the rechargeable explosion-proof battery automatically switches to become the main power supply and continuously supplies power to the entire device. After the equipment starts the reheating process, the motor drives the rotating shaft and eccentric rod to make circular motion, pushing the locking plate to slide along the through groove and extend to the top of the tank. At the same time, it drives the moving block to slide along the connecting rod to stretch the second energy storage spring. The locking plate forms a rigid physical block on the tank. The integrated control panel collects the tank temperature in real time, accumulates the time synchronously, and compares it with preset parameters. If the temperature does not meet the standard, it will remain locked. When the tank temperature and the recovery time reach the preset threshold, the motor reverses and drives the rotating shaft and eccentric rod to rotate. Spring 2 releases its elastic force and pulls the moving block and locking plate to fully retract. Simultaneously, the active gear drives the driven gear to rotate. Through the connecting shaft, active bevel gear, and driven bevel gear, the cam on the support shaft rotates. The lifting connecting plate drives the moving rod to slide upward along the main body shell to compress spring 3. The top plate at the top pushes the tank upward a certain distance. When the next warm-up operation is performed, the cam rotates with the motor and disengages from the connecting plate. The spring releases its elastic force, causing the moving rod and the top plate to fall back to their initial positions, and all moving parts return to standby mode. When multiple devices are running in batches, the insertion strip on the side of a single main unit casing is aligned with the mounting slot of another main unit casing and slid in to complete the assembly of multiple reheating chambers.

[0017] This invention provides a modular solder paste warming device with a locking function and its usage method. It has the following beneficial effects: 1. In this invention, the operator moves the movable heating plate outward, pushing the movable heating plate and the movable block to slide smoothly along the fixed support rod inside the mounting groove. As the movable block moves, it stretches the first spring. After the first spring is stretched, it generates a reverse force. After the can is completely placed between the two heating plates, under the reverse force of the first spring, the movable block drives the movable heating plate to press tightly against the side wall of the can. Finally, the two sides of the can are clamped by the fixed heating plate and the movable heating plate with adaptive adjustment of position, respectively. This achieves automatic adaptation to cans of different diameters, ensuring that both heating surfaces are in close contact with the outer wall of the can, avoiding uneven heating caused by heating gaps.

[0018] 2. In this invention, after the reheating is completed, the rotating shaft rotates while the driving gear synchronously drives the meshing driven gear to rotate. The driven gear drives the connecting shaft to rotate synchronously. The driving bevel gear at the bottom of the connecting shaft drives the meshing driven bevel gear to rotate, thereby driving the support shaft and the cam to make circular motion. The convex end of the cam rises upward to contact the connecting plate. The connecting plate drives the moving rod to slide upward along the main housing. The spring three sleeved on the outer wall of the moving rod is compressed, which finally causes the top plate to rise upward, automatically pushing the fully reheated tank upward a certain distance, allowing the operator to easily pick up the tank without having to pry it up and take it with effort.

[0019] 3. In this invention, the output end of the motor drives the rotating shaft to rotate, and the eccentric rod on the outer wall of the rotating shaft moves synchronously in a circular motion. The moving end of the eccentric rod directly contacts and pushes the locking plate, allowing the locking plate to slide smoothly along the through groove and extend to the top of the tank. As the locking plate moves, it drives its moving block to slide along the connecting rod. The spring two sleeved on the outer wall of the connecting rod is stretched and stores energy synchronously. At this time, the locking plate covers the picking and placing path at the top edge of the tank, forming a rigid physical block. Even if a person tries to forcibly remove the tank, it cannot be removed from the workstation, thus avoiding illegal material picking operations due to insufficient reheating. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the assembly structure of multiple main unit shells of the present invention; Figure 3 This is a schematic cross-sectional view of the main casing of the present invention; Figure 4 This is a partial structural diagram of the movable heating element of the present invention; Figure 5 This is a front view of the main housing structure of the present invention. Figure 6 This is a top view of the main casing structure of the present invention; Figure 7 This is a schematic diagram of a partial structure of the motor of the present invention; Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a bottom view of the main casing structure of the present invention.

[0021] The components include: 1. Main casing; 2. Fixed heating element; 201. Mounting slot; 202. Support rod; 203. Movable block; 204. Spring 1; 205. Movable heating element; 206. Tank body; 3. Support column; 301. Motor; 302. Rotating shaft; 303. Eccentric rod; 304. Through slot; 305. Locking piece; 4. Mounting frame; 401. Connecting rod; 402. Spring 2; 403. Movable block; 5. Driving gear; 501. Driven gear; 502. Connecting shaft; 503. Driving bevel gear; 504. Support shaft; 505. Driven bevel gear; 506. Cam; 6. Rear cover; 7. Movable rod; 701. Connecting plate; 702. Spring 3; 703. Top plate; 8. Clip-on slot; 801. Insertion strip; 9. Rechargeable explosion-proof battery; 901. Integrated control panel. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 9 This invention provides a modular solder paste warming device with locking function, including a main housing 1. A fixed heating element 2 is fixedly connected to one end of the top of the main housing 1. An upward-opening mounting groove 201 is opened inside the other end of the main housing 1. A support rod 202 is fixedly connected inside the mounting groove 201 of the main housing 1. A movable block 203 is slidably connected to the outer wall of the support rod 202. The outer wall of the movable block 203 is slidably connected inside the mounting groove 201. A spring 204 is fixedly connected to one side of the movable block 203. One end of the spring 204 is fixedly connected to one side of the mounting groove 201. The inner wall of the spring 204 is fitted onto the outer wall of the support rod 202. A movable heating element 205 is fixedly connected to the top of the movable block 203. The fixed heating element 2 and the movable heating element 205 are symmetrically arranged. A tank 206 is installed inside the main housing 1. The main housing 1 is equipped with a locking component, which uses temperature and time as criteria to lock and unlock the tank 206.

[0024] Specifically, the operator first places the solder paste container 206 to be reheated on the top of the main unit housing 1. When placing the container 206, the operator moves the movable heating element 205 outward, pushing the movable heating element 205 and the movable block 203 to slide smoothly along the support rod 202 fixed inside the mounting groove 201. As the movable block 203 moves, it stretches the spring 204. After the spring 204 is stretched, it will generate a reverse force. After the container 206 is completely placed between the two heating elements, under the reverse force of the spring 204, the movable block 203 drives the movable heating element 205 to press against the side wall of the container 206. Finally, the two sides of the container 206 are clamped by the fixed heating element 2 and the movable heating element 205 with adaptive adjustment of position, respectively. This achieves automatic adaptation to containers 206 of different diameters, ensuring that both heating surfaces are in close contact with the outer wall of the container 206, avoiding uneven heating caused by heating gaps. The locking assembly causes the locking plate 305 to cover the picking and placing path at the top edge of the tank 206, forming a rigid physical barrier. Even if a person tries to forcibly remove the tank 206, they will not be able to remove it from the workstation, thus avoiding illegal material picking operations due to insufficient reheating.

[0025] Please see the appendix Figure 5 -Appendix Figure 9 The locking assembly includes a support column 3. A groove is provided inside the main housing 1. The bottom of the support column 3 is fixedly connected to the groove. A motor 301 is fixedly connected to the top of the support column 3. A rotating shaft 302 is fixedly connected to the output end of the motor 301. An eccentric rod 303 is fixedly connected to the outer wall of the rotating shaft 302. A mounting frame 4 is fixedly connected to the top of the main housing 1. A through groove 304 is provided inside the mounting frame 4. A locking piece 305 is slidably connected in the through groove 304 of the mounting frame 4. The eccentric rod 303 will contact one side of the locking piece 305 during operation. A connecting rod 401 is fixedly connected between the two sides of the mounting frame 4. A spring 402 is fixedly connected to one side of the mounting frame 4. A movable block 403 is fixedly connected to one end of the spring 402. The inner wall of the spring 402 is fitted onto the outer wall of the connecting rod 401. A rod hole is opened inside the movable block 403. The movable block 403 is slidably connected to the outer wall of the connecting rod 401 through the cooperation of the rod hole. The top of the movable block 403 is fixedly connected to the bottom of one end of the locking piece 305.

[0026] Specifically, after the equipment starts the reheating process, the motor 301 begins to rotate forward with the support column 3 as the mounting base. The output end of the motor 301 drives the rotating shaft 302 to rotate, and the eccentric rod 303 on the outer wall of the rotating shaft 302 moves synchronously in a circular motion. The moving end of the eccentric rod 303 directly contacts and pushes the locking plate 305, allowing the locking plate 305 to slide smoothly along the through groove 304 and extend to the top of the tank 206. As the locking plate 305 moves, it drives its moving block 403 to slide along the connecting rod 401, thus engaging the locking plate. The spring 402 on the outer wall of the connecting rod 401 is stretched and stored in energy. At this time, the locking plate 305 covers the picking and placing path at the top edge of the tank 206, forming a rigid physical block. Even if a person tries to forcibly remove the tank 206, it cannot be removed from the workstation, thus avoiding illegal material picking operations due to insufficient reheating. During this process, the integrated control panel 901 collects the temperature data of the tank 206 in real time, accumulates the time synchronously, compares it with the preset temperature and time parameters, and continuously maintains the locking state. When the equipment detects that the temperature of tank 206 has reached the preset threshold and the cumulative time has completely covered the set duration, it determines that the temperature recovery process has met the standard. The buzzer on the integrated control panel 901 emits a prompt sound and simultaneously illuminates the standard status indicator on the panel, notifying the operator that tank 206 has completed temperature recovery. At the same time, after receiving the instruction from the integrated control panel 901, motor 301 starts to rotate in reverse, driving the rotating shaft 302 and eccentric rod 303 to rotate synchronously. Eccentric rod 303 no longer applies a pushing force to locking plate 305, and the previously stretched and stored spring 402 releases its elasticity synchronously, pulling moving block 403 to slide in the reverse direction along connecting rod 401, causing locking plate 305 to completely retract into the mounting frame 4 along through groove 304, completely removing the physical obstruction to the top of tank 206.

[0027] Please see the appendix Figure 3 Appendix Figure 7 -Appendix Figure 9 A drive gear 5 is fixedly connected to the outer wall of the rotating shaft 302. The tooth end of the drive gear 5 is meshed with a driven gear 501. A connecting shaft 502 is fixedly connected to the inner wall of the driven gear 501. The top end of the connecting shaft 502 is rotatably connected to the groove of the main housing 1, and the bottom end of the connecting shaft 502 is rotatably connected to the bottom of the main housing 1. A drive bevel gear 503 is fixedly connected to the bottom outer wall of the connecting shaft 502, and a support shaft 504 is rotatably connected to the bottom of the main housing 1. A driven bevel gear 505 is fixedly connected to the outer wall of one end of the support shaft 504. The drive bevel gear 503 and the driven bevel gear 505 mesh with each other, and a cam 506 is fixedly connected to the other end of the support shaft 504. A movable rod 7 is slidably connected through the inside of the main housing 1. A connecting plate 701 is fixedly connected to the bottom of the movable rod 7. When the protruding end of the cam 506 moves, it contacts the bottom of the connecting plate 701. A spring 702 is fixedly connected to the top of the connecting plate 701. The top of the spring 702 is fixedly connected to the bottom inner wall of the main housing 1. The inner wall of the spring 702 is sleeved on the outer wall of the moving rod 7. A top plate 703 is fixedly connected to the top of the moving rod 7.

[0028] Specifically, after the reheating is completed, as the rotating shaft 302 rotates, the driving gear 5 synchronously drives the meshing driven gear 501 to rotate. The driven gear 501 drives the connecting shaft 502 to rotate synchronously. The driving bevel gear 503 at the bottom of the connecting shaft 502 drives the meshing driven bevel gear 505 to rotate, thereby driving the support shaft 504 and the cam 506 to perform circular motion. The protruding end of the cam 506 rises upward to contact the connecting plate 701. The connecting plate 701 drives the moving rod 7 to slide upward along the main housing 1. The spring 702 sleeved on the outer wall of the moving rod 7 is compressed, which finally causes the top plate 703 to rise upward, automatically pushing the fully reheated tank 206 upward a certain distance, allowing the operator to easily pick up the tank 206 without having to pry it up and take it out with great effort. During the reheating process, the cam 506 rotates with the motor 301 and no longer lifts the connecting plate 701. The spring 3 702 releases its elastic force and pulls the connecting plate 701, along with the moving rod 7 and the top plate 703, back to the initial position. All moving parts of the equipment return to the standby state, waiting for the next tank 206 to be reheated to be placed in, and a new round of reheating and locking process can begin.

[0029] Please see the appendix Figure 5 Appendix Figure 7A back cover 6 is installed on one side of the main body housing 1. The back cover 6 is located at the position of the groove covered by the main body housing 1. The two sides of the main body housing 1 are respectively fixedly connected with a mounting slot 8 and an insertion strip 801, and the mounting slot 8 and the insertion strip 801 are compatible with each other.

[0030] Specifically, in the current production scenario, multiple cans of solder paste need to be processed for reheating simultaneously. The operator can directly slide the insertion strip 801 fixed on the side of one main unit housing 1 into the corresponding slot 8 on the side of another main unit housing 1. Without the need for additional installation tools, two or more reheating chambers can be quickly spliced ​​into one unit to complete the construction of a batch reheating system. This enables the batch processing of multiple cans 206 at the same pace. The number of splices can be increased at any time according to the real-time production capacity without adjusting the existing layout, or a single unit can be separated and transferred to other production lines for independent use. The adaptability of this system is far superior to that of traditional fixed-station integrated reheating equipment.

[0031] Please see the appendix Figure 1 -Appendix Figure 3 Appendix Figure 7 The main housing 1 is fitted with a rechargeable explosion-proof battery 9 in a groove. The rechargeable explosion-proof battery 9 is used to automatically switch battery power supply when the factory loses power, and continuously maintain the timing, temperature control and locking states. An integrated control panel 901 is installed on the top of the mounting frame 4. The integrated control panel 901 is electrically connected to the fixed heating element 2, the movable heating element 205 and the motor 301.

[0032] Specifically, the rechargeable explosion-proof battery 9 will be in a real-time monitoring power supply state throughout the process. When the factory mains power supply is normal, it will automatically bypass the power supply and replenish its own power. If the factory mains power fails suddenly during the operation of the equipment, the rechargeable explosion-proof battery 9 will automatically switch to the main power supply and continue to supply power to the device, avoiding the problems of timer reset and lock failure after power failure of traditional reheating equipment, and ensuring that the reheating progress will not be interrupted or disrupted. After the can 206 is clamped, the operator sets the target reheat temperature and corresponding duration parameters for the current can 206 through the integrated control panel 901 on the top of the mounting frame 4. After the parameters are confirmed, the equipment automatically enters the preheating standby state. The integrated control panel 901 outputs heating power signals to the fixed heating element 2 and the movable heating element 205. The two heating elements directly conduct heat to the outer wall of the can 206, completing the constant temperature reheating basic heating of the solder paste can 206.

[0033] A method for using modular solder paste with a locking function to reheat includes the following steps: In use, the operator first moves the movable heating element 205 outward, pushes the movable heating element 205 and the movable block 203 to slide smoothly along the support rod 202 in the mounting groove 201, stretches the spring 204 and puts it into the solder paste container 206 to be warmed up. After releasing the external force, the reverse force of the spring 204 drives the movable heating element 205 to stick to the side wall of the container 206, and the container 206 is clamped by the fixed heating element 2 and the movable heating element 205. After clamping, the operator sets the target reheat temperature and duration parameters corresponding to the tank 206 through the integrated control panel 901. The equipment enters the preheating standby state, and the fixed heating element 2 and the movable heating element 205 start heating simultaneously, directly transferring the heat to the outer wall of the tank 206. The power supply status is monitored by the rechargeable explosion-proof battery 9 throughout the process. When the mains power is normal, the explosion-proof battery is charged synchronously. When the mains power is cut off, the rechargeable explosion-proof battery 9 automatically switches to become the main power supply and continuously supplies power to the entire device. After the equipment starts the reheating process, the motor 301 drives the rotating shaft 302 and the eccentric rod 303 to make a circular motion, pushing the locking plate 305 to slide along the through groove 304 and extend to the top of the tank 206. At the same time, it drives the moving block 403 to slide along the connecting rod 401 to stretch the second spring 402 to store energy. The locking plate 305 forms a rigid physical block on the tank 206. The integrated control panel 901 collects the temperature of tank 206 in real time, accumulates the time synchronously, and compares it with preset parameters. If the temperature does not meet the standard, it will remain locked. When the temperature and reheating time of the tank 206 reach the preset threshold, the motor 301 rotates in reverse, driving the rotating shaft 302 and the eccentric rod 303 to rotate. The spring 402 releases its elastic force, pulling the moving block 403 and the locking plate 305 to fully retract. Simultaneously, the active gear 5 is triggered to drive the driven gear 501 to rotate. Through the connecting shaft 502, the active bevel gear 503, and the driven bevel gear 505, the cam 506 on the support shaft 504 is driven to rotate. The lifting connecting plate 701 drives the moving rod 7 to slide upward along the main housing 1 to compress the spring 702. The top plate 703 pushes the tank 206 upward a certain distance. When the next warm-up operation is performed, the cam 506 rotates with the motor 301 and disengages from the connecting plate 701. The spring 3 702 releases its elastic force, causing the moving rod 7 and the top plate 703 to fall back to their initial positions, and all moving parts return to the standby state. When multiple devices are running in batches, the insertion strip 801 on the side of a single main unit housing 1 is aligned with the mounting slot 8 of another main unit housing 1 and slid in to complete the assembly of multiple reheating chambers.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular solder paste temperature recovery device with locking function, comprising a main shell (1), characterized in that: A fixed heating element (2) is fixedly connected to one end of the top of the main housing (1). An upward-opening mounting groove (201) is provided inside the other end of the main housing (1). A support rod (202) is fixedly connected to the mounting groove (201) of the main housing (1). A movable block (203) is slidably connected to the outer wall of the support rod (202). The outer wall of the movable block (203) is slidably connected to the mounting groove (201). A spring (204) is fixedly connected to one side of the movable block (203). One end of the spring (204) is fixedly connected to one side of the mounting groove (201). The inner wall of the spring (204) is fitted onto the outer wall of the support rod (202). A movable heating element (205) is fixedly connected to the top of the movable block (203). The fixed heating element (2) and the movable heating element (205) are symmetrically arranged. A tank (206) is installed inside the main housing (1). The main housing (1) is equipped with a locking component, which locks and unlocks the tank (206) based on temperature and time as the determination conditions.

2. The modular solder paste warming device with locking function according to claim 1, characterized in that: The locking assembly includes a support column (3), and the inside of the main housing (1) is provided with a groove. The bottom of the support column (3) is fixedly connected to the groove. The top of the support column (3) is fixedly connected to a motor (301). The output end of the motor (301) is fixedly connected to a rotating shaft (302). The outer wall of the rotating shaft (302) is fixedly connected to an eccentric rod (303). The top of the main housing (1) is fixedly connected to a mounting frame (4). The inside of the mounting frame (4) is provided with a through groove (304). A locking piece (305) is slidably connected in the through groove (304) of the mounting frame (4). When the eccentric rod (303) is in operation, it will contact one side of the locking piece (305).

3. A modular solder paste warming device with a locking function according to claim 2, characterized in that: A connecting rod (401) is fixedly connected between the two sides of the mounting frame (4). A spring (402) is fixedly connected to one side of the mounting frame (4). A moving block (403) is fixedly connected to one end of the spring (402). The inner wall of the spring (402) is fitted onto the outer wall of the connecting rod (401). A rod hole is opened inside the moving block (403). The moving block (403) is slidably connected to the outer wall of the connecting rod (401) through the cooperation of the rod hole. The top of the moving block (403) is fixedly connected to the bottom of one end of the locking piece (305).

4. A modular solder paste warming device with a locking function according to claim 2, characterized in that: The outer wall of the rotating shaft (302) is fixedly connected to a drive gear (5), the tooth end of the drive gear (5) is meshed with a driven gear (501), the inner wall of the driven gear (501) is fixedly connected to a connecting shaft (502), the top end of the connecting shaft (502) is rotatably connected to a groove in the main housing (1), and the bottom end of the connecting shaft (502) is rotatably connected to the bottom of the main housing (1).

5. A modular solder paste warming device with a locking function according to claim 4, characterized in that: The bottom outer wall of the connecting shaft (502) is fixedly connected to a drive bevel gear (503), the bottom of the main housing (1) is rotatably connected to a support shaft (504), one end of the support shaft (504) is fixedly connected to a driven bevel gear (505), the drive bevel gear (503) and the driven bevel gear (505) mesh with each other, and the other end of the support shaft (504) is fixedly connected to a cam (506).

6. A modular solder paste warming device with a locking function according to claim 5, characterized in that: A movable rod (7) is slidably connected through the inside of the main housing (1). A connecting plate (701) is fixedly connected to the bottom of the movable rod (7). When the protruding end of the cam (506) moves, it contacts the bottom of the connecting plate (701).

7. A modular solder paste warming device with a locking function according to claim 6, characterized in that: The top of the connecting plate (701) is fixedly connected to a spring three (702), the top of the spring three (702) is fixedly connected to the bottom inner wall of the main housing (1), the inner wall of the spring three (702) is sleeved on the outer wall of the moving rod (7), and the top of the moving rod (7) is fixedly connected to a top plate (703).

8. A modular solder paste warming device with a locking function according to claim 1, characterized in that: A back cover (6) is installed on one side of the main housing (1). The back cover (6) is located at the position of the groove covered by the main housing (1). A mounting slot (8) and an insertion strip (801) are fixedly connected to both sides of the main housing (1). The mounting slot (8) and the insertion strip (801) are compatible with each other.

9. A modular solder paste warming device with a locking function according to claim 2, characterized in that: The main housing (1) is fitted with a rechargeable explosion-proof battery (9) in a groove. The rechargeable explosion-proof battery (9) is used to automatically switch to battery power supply when the factory loses power, and continuously maintain the timing, temperature control and locking states. An integrated control panel (901) is installed on the top of the mounting frame (4). The integrated control panel (901) is electrically connected to the fixed heating element (2), the movable heating element (205) and the motor (301).

10. A method for using modular solder paste with a locking function to restore its temperature, characterized in that: A modular solder paste warming device with a locking function, applicable to any one of claims 1-9, comprises the following steps: When in use, the operator first moves the movable heating plate (205) outward, pushes the movable heating plate (205) and the movable block (203) to slide smoothly along the support rod (202) in the mounting groove (201), stretches the first spring (204) and puts it into the solder paste container (206) to be warmed up. After releasing the external force, the reverse force of the first spring (204) drives the movable heating plate (205) to stick to the side wall of the container (206), and the container (206) is clamped by the fixed heating plate (2) and the movable heating plate (205); After clamping, the operator sets the target reheat temperature and duration parameters of the tank (206) through the integrated control panel (901). The equipment enters the preheating standby state, and the fixed heating element (2) and the moving heating element (205) start heating simultaneously, directly transferring the heat to the outer wall of the tank (206). The power supply status is monitored by the rechargeable explosion-proof battery (9) throughout the process. When the mains power is normal, the explosion-proof battery is charged synchronously. When the mains power is cut off, the rechargeable explosion-proof battery (9) automatically switches to the main power supply and continuously supplies power to the entire device. After the equipment starts the reheating process, the motor (301) drives the rotating shaft (302) and the eccentric rod (303) to make a circular motion, pushing the locking plate (305) to slide along the through groove (304) and extend to the top of the tank (206). Simultaneously, it drives the moving block (403) to slide along the connecting rod (401) to stretch the second spring (402) to store energy. The locking plate (305) forms a rigid physical block on the tank (206). The integrated control panel (901) collects the temperature of the tank (206) in real time, accumulates the time synchronously, and compares it with the preset parameters. If the parameters are not met, the control panel will remain locked. When the temperature and warm-up time of the tank (206) reach the preset threshold, the motor (301) reverses and drives the rotating shaft (302) and the eccentric rod (303) to rotate. The spring (402) releases its elastic force and pulls the moving block (403) and the locking plate (305) to fully retract. Simultaneously, the active gear (5) is triggered to drive the driven gear (501) to rotate. Through the connecting shaft (502), the active bevel gear (503), and the driven bevel gear (505), the cam (506) on the support shaft (504) is driven to rotate. The lifting connecting plate (701) drives the moving rod (7) to slide upward along the main housing (1) to compress the spring (702). The top plate (703) pushes the tank (206) upward a certain distance. When the next warm-up operation is performed, the cam (506) rotates with the motor (301) and disengages from the connecting plate (701). The spring three (702) releases its elastic force, causing the moving rod (7) and the top plate (703) to fall back to their initial positions, and all moving parts return to the standby state. When multiple devices are running in batches, the insertion strip (801) on the side of a single main unit housing (1) is aligned with the mounting slot (8) of another main unit housing (1) and slid in to complete the assembly of multiple reheating chambers.

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