A dual-track connecting platform with air cooling function

Abstract

This utility model relates to the field of circuit board surface mount production line technology, and discloses a dual-track conveyor with air cooling function, including a housing, a dual-track conveyor module, and a first air-guiding module. The housing has an inner cavity with a partition, which divides the inner cavity into an upper cavity and a lower cavity located below the upper cavity. The dual-track conveyor module is located in the upper cavity for conveying circuit boards. The first air-guiding module is located on the partition. This application utilizes the upper cavity to isolate the dual-track conveyor module from the external environment, protecting it. The first air-guiding module guides the airflow from the upper cavity to the lower cavity. When the airflow passes over the circuit board, it can cool the circuit board, while also preventing high-temperature airflow from lingering in the upper cavity and affecting the cooling effect. Furthermore, as the airflow descends, it can press the circuit board onto the dual-track conveyor module, preventing the circuit board from shifting position or detaching from the dual-track conveyor module due to the airflow. Compared with the prior art, the cooling process of this application is more stable and effective.

Description

Technical Field

[0001] This utility model relates to the field of circuit board surface mount production line technology, and in particular to a dual-track connection platform with air cooling function. Background Technology

[0002] A PCB surface mount technology (SMT) production line is used to automatically mount electronic components onto PCBs. It typically includes, in sequence, mounting equipment, solder paste printing equipment, solder paste inspection equipment, component mounting equipment, mounting inspection equipment, and cooling equipment. Adjacent equipment is connected via a transfer platform to transport PCBs. To improve processing efficiency, some manufacturers employ a dual-line synchronous processing solution. Between the mounting inspection and cooling equipment on the two production lines, a transfer device and a dual-rail transfer platform with air cooling are installed. The transfer device transports PCBs from the mounting inspection equipment to the dual-rail transfer platform with air cooling. The dual-rail transfer platform then transports the PCBs from the transfer device to the cooling equipment, which simultaneously cools the PCBs from both production lines.

[0003] Currently, some dual-track connecting platforms with air cooling functions are equipped with a blower mechanism to blow air onto the circuit boards from top to bottom, thereby reducing the temperature of the circuit boards. However, with this air cooling method, if the airflow is too strong, it is easy to blow the circuit boards off course or even blow them off the dual-track connecting platform with air cooling function; if the airflow is too weak, the cooling effect is poor.

[0004] Therefore, how to provide a dual-track connection platform with air-cooling function that has a stable and effective cooling effect has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a dual-track connecting platform with air cooling function, which provides more stable and effective cooling compared to existing technologies.

[0006] This utility model is achieved using the following technical solution: A dual-track connecting platform with air cooling function includes a housing, a dual-track conveying module, and a first air-guiding module; the inner cavity of the housing is provided with a partition, which divides the inner cavity of the housing into an upper cavity and a lower cavity located below the upper cavity; the dual-track conveying module is located in the upper cavity and is used to convey circuit boards; the first air-guiding module is located in the partition and is used to introduce air from the upper cavity into the lower cavity.

[0007] In one alternative embodiment, the first air intake module includes a plurality of first fans arranged in an array on the partition.

[0008] In one optional embodiment, the partition is provided with a plurality of first air vents; the positions of the plurality of first fans correspond one-to-one with the positions of the plurality of first air vents.

[0009] In one alternative embodiment, the first fan is located in the lower cavity and is fixed to the bottom wall of the partition.

[0010] In one alternative embodiment, the two opposing vertical walls of the upper cavity are respectively provided with a feed window and a discharge window.

[0011] In one optional embodiment, a second air intake module is also included, which is disposed in the lower cavity to draw air from the lower cavity to the outside of the housing.

[0012] In one optional embodiment, the airflow direction of the first airflow module is vertically downward, and the airflow direction of the second airflow module is perpendicular to the airflow direction of the first airflow module.

[0013] In one optional embodiment, two second air intake modules are configured, and the two second air intake modules are symmetrically arranged on opposite sides of the lower cavity.

[0014] In one alternative embodiment, the second air intake module includes a plurality of second fans arranged in a straight line.

[0015] In one optional embodiment, the two opposite vertical walls of the lower cavity are respectively provided with a plurality of second air vents, and the positions of the plurality of second fans correspond one-to-one with the positions of the plurality of second air vents.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The housing of this application has an upper cavity and a lower cavity. The dual-track conveying module is located in the upper cavity, which isolates the dual-track conveying module from the external environment and protects it. To solve the problem of difficult cooling in a closed environment, a first air-guiding module is used to guide the airflow in the upper cavity to the lower cavity. When the airflow passes over the circuit board, it can cool the circuit board and at the same time prevent the high-temperature airflow from staying in the upper cavity, which would affect the cooling effect. In addition, when the airflow goes down, it can press the circuit board onto the dual-track conveying module, preventing the circuit board from shifting position or detaching from the dual-track conveying module due to the airflow. Compared with the prior art, the cooling process of this application is more stable and effective. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the dual-track docking station with air cooling function according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the dual-track docking station with air cooling function according to an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the housing according to an embodiment of this application; Figure 4 This is one of the structural schematic diagrams of the dual-track conveying module according to an embodiment of this application; Figure 5 This is a second schematic diagram of the structure of the dual-track conveyor module according to an embodiment of this application; Figure 6 This is a schematic diagram of the transmission module in an embodiment of this application.

[0018] The image is labeled as follows: 10. Shell; 11. Upper cavity; 12. Lower cavity; 13. Feed window; 14. Discharge window; 15. Baffle plate; 20. Dual-track conveyor module; 21. Conveyor belt; 23. Guide rod; 24. Connecting shaft; 241. Conveyor motor; 25. Lead screw shaft; 251. Lead screw motor; 30. First air intake module; 31. First fan; 40. Second air intake module; 41. Second fan; 51. Feed sensor; 52. Discharge sensor; 60. Control unit. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] Please see Figures 1 to 3This embodiment discloses a dual-rail connecting platform with air cooling function, which has the function of cooling circuit boards, and the cooling process is stable and effective. The dual-rail connecting platform with air cooling function includes a housing 10, a dual-rail conveying module 20, and a first air-guiding module 30. The inner cavity of the housing 10 is provided with a partition 15, which divides the inner cavity of the housing 10 into an upper cavity 11 and a lower cavity 12 located below the upper cavity 11. The dual-rail conveying module 20 is located in the upper cavity 11 and is used to convey circuit boards; the upper cavity 11 isolates the dual-rail conveying module 20 from the external environment, protecting the dual-rail conveying module 20 and the circuit boards it conveys, preventing external dust and impurities from contaminating the circuit boards, and preventing external objects from touching the dual-rail conveying module 20 and the circuit boards. The first air-guiding module 30 is located on the partition 15. In order to solve the problem of difficult cooling in the closed environment of the upper cavity 11, the first air-guiding module 30 is used to guide the airflow in the upper cavity 11 to the lower cavity 12. When the airflow passes through the circuit board, it can cool the circuit board and at the same time avoid the high temperature airflow from staying in the upper cavity 11, which would affect the cooling effect. In addition, when the airflow goes down, it can press the circuit board onto the double-rail conveying module 20 to prevent the circuit board from shifting position or falling off the double-rail conveying module 20 due to the airflow. Compared with the prior art, the cooling process of this embodiment is more stable and effective.

[0021] In some embodiments, the first air-guiding module 30 is located directly below the dual-rail conveying module 20, and the orthographic projection of the dual-rail conveying module 20 on the partition 15 is entirely within the area corresponding to the first air-guiding module 30. This allows the first air-guiding module 30 to guide airflow more evenly, preventing turbulence in the upper cavity 11 that could cause the circuit board to be blown off-center or even blown away from the dual-rail conveying module 20. Furthermore, this structure allows airflow to be evenly directed to all parts of the top surface of the circuit board, resulting in uniform cooling of the circuit board. Preferably, the first air-guiding module 30 includes multiple first fans 31, which are arranged in an array on the partition 15. Specifically, the first fans 31 can be industrial exhaust fans, and the partition 15 has multiple first air-guiding holes; the positions of the multiple first fans 31 correspond one-to-one with the positions of the multiple first air-guiding holes. The frames of the first fans 31 are fixed to the partition 15 with fasteners.

[0022] In some embodiments, the first fan 31 is located in the lower cavity 12 and is fixed to the bottom wall of the partition 15. This avoids the first fan 31 occupying the space of the upper cavity 11, so that the upper cavity 11 can reserve enough space for the installation of the dual-rail conveying module 20.

[0023] In some embodiments, the upper cavity 11 has two opposite vertical walls with a feed window 13 and a discharge window 14, respectively. The feed end of the dual-rail conveying module 20 extends out of the upper cavity 11 from the feed window 13 to dock with the conveying mechanism of an external device; the discharge end of the dual-rail conveying module 20 extends out of the upper cavity 11 from the discharge window 14 to dock with the conveying mechanism of another external device. In addition, the feed window 13 and the discharge window 14 can also allow airflow to enter the upper cavity 11 to maintain a relative balance between the upper cavity 11 and the external air pressure.

[0024] Please see Figure 4 and Figure 5 In some embodiments, the dual-track conveying module 20 includes two guide rods 23 and two parallel conveying modules. The two guide rods 23 are arranged in parallel along the conveying direction of the conveying modules, and both ends of each guide rod 23 are fixed to the inner wall of the upper cavity 11. The conveying modules are suspended in the upper cavity 11 by the two guide rods 23, so that sufficient space is reserved around the conveying modules for airflow, the contact area between the airflow and the conveying modules is larger, and the cooling effect is better.

[0025] Please combine Figure 5 and Figure 6 Each transmission module includes two parallel transmission belts 21, a transmission drive mechanism for driving the transmission belts 21 to transport the circuit board, and an electric lead screw mechanism for adjusting the distance between the two transmission belts 21. The parallel direction of the two transmission belts 21 is perpendicular to the parallel direction of the two guide rods 23.

[0026] The conveyor belt 21 includes a support plate, a conveyor belt, a drive pulley, and multiple driven pulleys. The support plate is sleeved on the guide rod 23 and can slide back and forth relative to the guide rod 23. The drive pulley and multiple driven pulleys are rotatably mounted on the support plate, and the conveyor belt is sleeved on the drive pulley and multiple driven pulleys, supporting the circuit board.

[0027] The electric lead screw mechanism includes at least one lead screw shaft 25 and a lead screw motor 251. The lead screw shaft 25 is parallel to the guide rod 23, and its two ends are rotatably connected to the two inner walls of the upper cavity 11. The lead screw motor 251 is located outside the upper cavity 11 and is fixed to the inner wall of the housing 10 by fasteners. The output shaft of the lead screw motor 251 is connected to the lead screw shaft 25 via a coupling. The lead screw shaft 25 is threadedly connected to the support plate of one of the two transmission belts 21. When the lead screw motor 251 drives the lead screw shaft 25 to rotate in both directions, the lead screw shaft 25 can drive the corresponding support plate to move back and forth along the axial direction of the lead screw shaft 25, thereby driving the corresponding transmission belt 21 to slide back and forth along the axial direction of the guide rod 23, thus adjusting the distance between the two transmission belts 21.

[0028] The conveying drive mechanism includes a connecting shaft 24 and a conveying motor 241. The connecting shaft 24 is parallel to the guide rod 23, and both ends of the connecting shaft 24 are rotatably connected to the inner wall of the upper cavity 11. The connecting shaft 24 is prismatic in shape, and the shaft of the drive pulley of the conveyor belt 21 is a hollow tube. The inner shape of the hollow tube is adapted to the shape of the connecting shaft 24. The hollow tube is sleeved on the connecting shaft 24 and can rotate synchronously with the connecting shaft 24 and can slide along the axial direction of the connecting shaft 24. The conveying motor 241 is located outside the upper cavity 11 and is fixed to the inner wall of the housing 10 by fasteners. The output shaft of the conveying motor 241 is connected to the connecting shaft 24 via a coupling. When the conveying motor 241 drives the connecting shaft 24 to rotate forward and backward, the connecting shaft 24 can drive the hollow tube to rotate synchronously. The hollow tube drives the drive pulley to rotate, and the drive pulley drives the conveyor belt to move, thereby conveying the circuit board by the conveyor belt.

[0029] In some embodiments, the dual-rail connecting platform with air cooling function is also equipped with a control unit 60, and the transmission module further includes a feed sensor 51 and a discharge sensor 52. The control unit 60 can be a PLC controller, an industrial computer, or other common controllers. The feed sensor 51 is located between the feed ends of the two conveyor belts 21. Specifically, the feed sensor 51 is a photoelectric sensor, which is installed on the inner wall of the upper cavity 11 and located below the feed window 13. The discharge sensor 52 is located between the discharge ends of the two conveyor belts 21. Specifically, the discharge sensor 52 is a photoelectric sensor, which is installed on the inner wall of the upper cavity 11 and located below the discharge window 14. When the circuit board is conveyed to the feed end of the conveyor belt 21, the feed sensor 51 can sense the feed signal and feed the signal back to the control unit 60. The control unit 60 controls the conveying mechanism to drive the conveyor belt 21 to convey the circuit board. When the circuit board is conveyed to the discharge end of the conveyor belt 21, the discharge sensor 52 senses the circuit board and generates a discharge signal, which is then fed back to the control unit 60. The control unit 60 controls the conveyor motor 241 to stop driving the conveyor belt 21, waiting for the next process equipment to send a feeding signal to the control unit 60. Then, the control unit 60 controls the conveyor motor 241 to drive the conveyor belt 21 to convey the circuit board to the next process equipment. This design allows the air-cooled dual-rail connecting platform of this embodiment to better adapt to the processing rhythm of the preceding and following process equipment. Simultaneously, the circuit board can briefly stay on the conveyor belt 21, increasing its cooling time and resulting in a more significant cooling effect.

[0030] In some embodiments, the dual-rail docking station with air cooling function also includes a temperature sensor. The temperature sensor is disposed in the upper cavity 11 to sense the temperature inside the upper cavity 11. The control unit 60 can control the rotation speed of the first fan 31 based on the temperature signal fed back by the temperature sensor, thereby controlling the airflow speed of the first fan 31; the higher the temperature, the faster the airflow speed. In addition, the control unit 60 also includes a display screen, on which the rotation speed of the first fan 31 and the temperature signal from the temperature sensor can be displayed to the operator.

[0031] Please continue reading. Figures 1 to 3 In some embodiments, the dual-track docking station with air cooling function also includes a second air intake module 40. The second air intake module 40 is located in the lower cavity 12 and is used to draw the air in the lower cavity 12 out of the housing 10 to avoid the air pressure in the lower cavity 12 being too high as the air pressure in the upper cavity 11 due to too much air, which would affect the smooth flow of air from the upper cavity 11 into the lower cavity 12.

[0032] In some embodiments, the airflow direction of the first airflow module 30 is vertically downward, and the airflow direction of the second airflow module 40 is perpendicular to the airflow direction of the first airflow module 30. The airflow introduced into the lower cavity 12 by the first airflow module 30 is laterally drawn out of the lower cavity 12 by the second airflow module 40. This avoids the airflow introduced into the lower cavity 12 by the first airflow module 30 from directly impacting the bottom wall of the lower cavity 12 and changing its flow direction to form turbulence.

[0033] In some embodiments, two second air-guiding modules 40 are configured, and the two second air-guiding modules 40 are symmetrically arranged on opposite sides of the lower cavity 12. The two second air-guiding modules 40 together guide the airflow out of the lower cavity 12, so that the flow rate of the airflow out of the lower cavity 12 is greater than the flow rate of the airflow introduced into the lower cavity 12. As a result, the air pressure in the lower cavity 12 is lower than the air pressure in the upper cavity 11, preventing the airflow in the lower cavity 12 from flowing back into the upper cavity 11, and also allowing the airflow in the upper cavity 11 to smoothly enter the lower cavity 12.

[0034] In some embodiments, the second air intake module 40 includes a plurality of second fans 41 arranged in a straight line. These fans are arranged sequentially at intervals along a straight line, which uniformly draws airflow from the lower cavity 12 from multiple locations, reducing the probability of turbulence. The second fans 41 can be industrial exhaust fans. Furthermore, the two opposite vertical walls of the lower cavity 12 are each provided with a plurality of second air intake holes, and the positions of the second fans 41 correspond one-to-one with the positions of the second air intake holes. The outer frame of the second fans 41 is fixed to the inner wall of the lower cavity 12 by fasteners.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A dual-track connecting platform with air cooling function, characterized in that, include: The housing (10) has a partition (15) in its inner cavity, which divides the inner cavity of the housing (10) into an upper cavity (11) and a lower cavity (12) located below the upper cavity (11). A dual-track conveying module (20), located in the upper cavity (11), is used to convey circuit boards; The first air intake module (30) is located on the partition (15) and is used to introduce air from the upper cavity (11) into the lower cavity (12).

2. The dual-track connecting platform with air-cooling function as described in claim 1, characterized in that, The first air intake module (30) includes a plurality of first fans (31), which are arranged in an array on the partition (15).

3. The dual-track connecting platform with air-cooling function as described in claim 2, characterized in that, The partition (15) has multiple first air inlets; the positions of the multiple first fans (31) correspond one-to-one with the positions of the multiple first air inlets.

4. The dual-track connecting platform with air-cooling function as described in claim 3, characterized in that, The first fan (31) is located in the lower cavity (12) and is fixed to the bottom wall of the partition (15).

5. The dual-track connecting platform with air-cooling function as described in claim 1, characterized in that, The upper cavity (11) has two vertical walls opposite to each other with a feeding window (13) and a discharging window (14).

6. The dual-track connecting platform with air-cooling function as described in any one of claims 1-5, characterized in that, It also includes a second air intake module (40), which is located in the lower cavity (12) to draw air out of the lower cavity (12) to the outside of the housing (10).

7. The dual-track connecting platform with air-cooling function as described in claim 6, characterized in that, The airflow direction of the first airflow module (30) is vertically downward, and the airflow direction of the second airflow module (40) is perpendicular to the airflow direction of the first airflow module (30).

8. The dual-track connecting platform with air-cooling function as described in claim 7, characterized in that, The second air-guiding module (40) is configured in two units, and the two second air-guiding modules (40) are symmetrically arranged on opposite sides of the lower cavity (12).

9. The dual-track connecting platform with air-cooling function as described in claim 8, characterized in that, The second air intake module (40) includes a plurality of second fans (41) arranged in a straight line.

10. The dual-track connecting platform with air-cooling function as described in claim 9, characterized in that, The two vertical walls opposite each other in the lower cavity (12) are provided with a plurality of second air vents, and the positions of the plurality of second fans (41) correspond one by one with the positions of the plurality of second air vents.

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