Circuit board welding multi-temperature-zone sectional variable-speed track system

Abstract

The utility model provides a circuit board welding multi-temperature-zone sectional variable speed track system which comprises a main body assembly, a plurality of conveying assemblies are arranged on the main body assembly, and each conveying assembly comprises a driving motor, a driving wheel, a driven wheel, a conveying belt, a circuit board, a control panel, operation keys and a display screen. An output shaft of the driving motor is fixedly connected with the driving wheel, the outer side wall of the driving wheel is sleeved with a conveying belt, and the outer side wall of the driven wheel is sleeved with the conveying belt. According to the utility model, the plurality of driving motors are controlled to work through the control panel, and the rotating speed of the driving motors is changed, so that the circuit board passes through a specific area at different speeds, the heating temperature of the circuit board is more accurately controlled, the process window is greatly widened, the adjustment difficulty is simplified, the process precision is improved, and the quality is improved. By arranging a plurality of conveying assemblies, the multi-section process of reflow soldering and wave soldering can be adapted, and the multi-temperature-zone variable-speed conveying requirement of circuit board welding is met.

Description

Technical Field

[0001] The utility model relates to an orbital system, in particular to a multi-temperature-zone segmented variable-speed orbital system for printed circuit board welding, belonging to the technical field of printed circuit board welding. Background Art

[0002] Printed circuit board welding is a core technology in the electronics industry, which involves firmly connecting electronic components to a printed circuit board (PCB) through soldering. This process usually includes various methods such as reflow soldering, wave soldering or manual soldering, and each method has its unique advantages and application scenarios. During the welding process, tools and materials such as soldering irons, solder wires, solder pastes and fluxes are required, and strict welding steps and techniques, such as preheating, melting solder, cooling and solidifying, are followed to ensure the quality and reliability of solder joints. By mastering the printed circuit board welding technology proficiently, the production efficiency and quality of electronic products can be improved, contributing to the development of the electronics industry.

[0003] Printed circuit boards, solders and components all have their own optimal welding temperature requirements, including parameters such as heating rate, cooling rate, maximum heat-resistant temperature, and maximum temperature tolerance time. Therefore, when welding a printed circuit board, it is required to set different temperatures for each temperature zone of the reflow soldering or wave soldering equipment. However, at present, the conveying of printed circuit boards by printed circuit board welding equipment adopts a one-piece chain track mode, and the printed circuit board is transported through multiple heating cavities with different temperatures to complete the controllable heating welding of the printed circuit board. This makes it impossible for a single track speed to simultaneously meet the welding temperature requirements of printed circuit boards, solders and components (the welding temperature requirements of the three differ greatly) when producing certain products, resulting in a decline in welding quality. For this reason, a multi-temperature-zone segmented variable-speed orbital system for printed circuit board welding is proposed. Summary of the Utility Model

[0004] In view of this, the utility model provides a multi-temperature-zone segmented variable-speed orbital system for printed circuit board welding to solve or alleviate one of the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the utility model is realized as follows: A multi-temperature-zone segmented variable-speed orbital system for printed circuit board welding includes a main body assembly, and a plurality of conveying assemblies are arranged on the main body assembly. The conveying assembly includes a driving motor, a driving wheel, a driven wheel, a conveying belt, a printed circuit board, a control panel, operation buttons and a display screen;

[0006] The output shaft of the driving motor is fixedly connected to the driving wheel. A conveyor belt is sleeved on the outer side wall of the driving wheel. The conveyor belt is sleeved on the outer side wall of the driven wheel. A circuit board is arranged on the top of the conveyor belt. Operation buttons are evenly installed on the upper surface of the control panel. A display screen is installed on the upper surface of the control panel. The electrical output end of the control panel is electrically connected to the electrical input end of the driving motor.

[0007] Further preferably: The main body assembly includes a base and a groove;

[0008] A groove is arranged on the upper surface of the base.

[0009] Further preferably: A plurality of the driving motors are evenly installed on the rear surface of the base, and the control panel is installed on the front surface of the base.

[0010] Further preferably: A plurality of the driving wheels and the driven wheels are rotatably connected to the inner side wall of the groove.

[0011] Further preferably: Support legs are symmetrically and fixedly connected to the bottom of the base.

[0012] Further preferably: A first section, a second section, a third section, and a fourth section are sequentially arranged on the top of the base.

[0013] Further preferably: Temperature sensors and laser sensors are installed on the inner side walls of the first section, the second section, the third section, and the fourth section.

[0014] Further preferably: The signal output ends of the temperature sensors and the laser sensors are signal-connected to the signal input end of the control panel.

[0015] Due to the adoption of the above technical solutions in the embodiments of the present invention, it has the following advantages:

[0016] First, the present invention controls the operation of multiple driving motors through the control panel, changes the rotation speed of the driving motors, so that the circuit board passes through a specific area at different speeds, more precisely controls the heating temperature of the circuit board, greatly broadens the process window, simplifies the adjustment difficulty, improves the process precision, and improves the quality.

[0017] Second, by arranging a plurality of conveying components, the present invention can adapt to the multi-section processes of reflow soldering and wave soldering, and meet the requirements of variable-speed conveying in multiple temperature zones for circuit board soldering.

[0018] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a structural diagram of the present utility model;

[0021] Figure 2 It is a rear view structural diagram of the present utility model;

[0022] Figure 3 It is a structural diagram of the base of the present utility model;

[0023] Figure 4 It is a structural diagram of the work section of the present utility model.

[0024] Reference numerals: 10, main body assembly; 11, base; 12, groove; 13, support leg; 14, first work section; 15, second work section; 16, third work section; 17, fourth work section; 18, temperature sensor; 19, laser sensor; 20, conveying assembly; 21, driving motor; 22, driving wheel; 23, driven wheel; 24, conveying belt; 25, circuit board; 26, control panel; 27, operation button; 28, display screen. Detailed implementation manners

[0025] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the accompanying drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] The following will detail the embodiments of the present utility model with reference to the accompanying drawings.

[0027] As Figures 1 - 4 shown, the embodiment of the present utility model provides a multi-temperature-zone segmented variable-speed track system for circuit board welding, including a main body assembly 10. A plurality of conveying assemblies 20 are arranged on the main body assembly 10. The conveying assembly 20 includes a driving motor 21, a driving wheel 22, a driven wheel 23, a conveying belt 24, a circuit board 25, a control panel 26, an operation button 27 and a display screen 28. The operation button 27 and the display screen 28 facilitate the staff to operate the control panel 26;

[0028] The output shaft of the driving motor 21 is fixedly connected to the driving wheel 22. A conveyor belt 24 is sleeved on the outer side wall of the driving wheel 22. The conveyor belt 24 is sleeved on the outer side wall of the driven wheel 23. A circuit board 25 is arranged on the top of the conveyor belt 24. Operation buttons 27 are evenly installed on the upper surface of the control panel 26. A display screen 28 is installed on the upper surface of the control panel 26. The electrical output end of the control panel 26 is electrically connected to the electrical input end of the driving motor 21. By controlling the operation of multiple driving motors 21 through the control panel 26, the rotation speeds of the driving motors 21 and the driving wheels 22 are changed, thereby changing the conveying speed of the conveyor belt 24, enabling the circuit board 25 to pass through the first section 14, the second section 15, the third section 16, and the fourth section 17 at different speeds, and precisely controlling the temperature rise of the circuit board 25.

[0029] In this embodiment, specifically: The main body assembly 10 includes a base 11 and a groove 12;

[0030] A groove 12 is arranged on the upper surface of the base 11.

[0031] In this embodiment, specifically: A number of driving motors 21 are evenly installed on the rear surface of the base 11, and the control panel 26 is installed on the front surface of the base 11. The operation of multiple driving motors 21 is controlled through the control panel 26.

[0032] In this embodiment, specifically: A number of driving wheels 22 and driven wheels 23 are rotatably connected to the inner side wall of the groove 12, and the conveyor belt 24 is moved by the rotation of the driving wheels 22 and the driven wheels 23.

[0033] In this embodiment, specifically: Support legs 13 are symmetrically and fixedly connected to the bottom of the base 11, and the support legs 13 play a role in stable support.

[0034] In this embodiment, specifically: The first section 14, the second section 15, the third section 16, and the fourth section 17 are sequentially arranged on the top of the base 11. In reflow soldering, the first section 14, the second section 15, the third section 16, and the fourth section 17 are respectively a preheating section, a constant temperature section, a reflow section, and a cooling section. In wave soldering, the first section 14, the second section 15, the third section 16, and the fourth section 17 are respectively a preheating section, a first wave peak section, a second wave peak section, and a cooling section.

[0035] In this embodiment, specifically: Temperature sensors 18 and laser sensors 19 are installed on the inner side walls of the first section 14, the second section 15, the third section 16, and the fourth section 17. The temperature sensors 18 and the laser sensors 19 are respectively used to detect the temperature of each section and the position of the circuit board 25.

[0036] In this embodiment, specifically: the signal output ends of the temperature sensor 18 and the laser sensor 19 are signal-connected to the signal input end of the control panel 26.

[0037] When the present utility model is working: the circuit board 25 is placed on the conveyor belt 24, and a plurality of drive motors 21 are controlled to work through the control panel 26, so as to change the rotation speeds of the drive motors 21 and the driving wheels 22, thereby changing the conveying speed of the conveyor belt 24, enabling the circuit board 25 to pass through the first section 14, the second section 15, the third section 16 and the fourth section 17 at different speeds, more precisely controlling the temperature rise of the circuit board 25, greatly broadening the process window, simplifying the adjustment difficulty, improving the process precision, enhancing the quality. By arranging a plurality of conveying components 20, it can adapt to the multi-section processes of reflow soldering and wave soldering, and meet the requirements of variable-speed conveying of the circuit board 25 in multiple temperature zones for soldering.

[0038] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A multi-temperature-zone segmented variable-speed track system for circuit board soldering, comprising a main body assembly (10), characterized in that: A plurality of conveying components (20) are arranged on the main body component (10). The conveying component (20) includes a driving motor (21), a driving wheel (22), a driven wheel (23), a conveyor belt (24), a circuit board (25), a control panel (26), operation buttons (27) and a display screen (28). The output shaft of the driving motor (21) is fixedly connected to the driving wheel (22). The outer side wall of the driving wheel (22) is sleeved with a conveyor belt (24). The conveyor belt (24) is sleeved on the outer side wall of the driven wheel (23). A circuit board (25) is arranged on the top of the conveyor belt (24). Operation buttons (27) are uniformly installed on the upper surface of the control panel (26). A display screen (28) is installed on the upper surface of the control panel (26). The electrical output end of the control panel (26) is electrically connected to the electrical input end of the driving motor (21).

2. The multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 1, wherein: The main body component (10) includes a base (11) and a groove (12). A groove (12) is arranged on the upper surface of the base (11).

3. The multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 2, characterized in that: A plurality of the driving motors (21) are uniformly installed on the rear surface of the base (11). The control panel (26) is installed on the front surface of the base (11).

4. A multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 2, characterized in that: A plurality of the driving wheels (22) and the driven wheels (23) are rotatably connected to the inner side wall of the groove (12).

5. A multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 3, characterized in that: Support legs (13) are symmetrically and fixedly connected to the bottom of the base (11).

6. The multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 5, wherein: A first section (14), a second section (15), a third section (16) and a fourth section (17) are sequentially arranged on the top of the base (11).

7. A multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 6, characterized in that: Temperature sensors (18) and laser sensors (19) are installed on the inner side walls of the first section (14), the second section (15), the third section (16) and the fourth section (17).

8. A multi-temperature-zone segmented variable-speed track system for circuit board soldering according to claim 7, characterized in that: The signal output ends of the temperature sensors (18) and the laser sensors (19) are signal-connected to the signal input end of the control panel (26).

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