An SMT (Surface Mount Technology) dispensing equipment

Abstract

This utility model discloses an SMT (Surface Mount Technology) dispensing equipment, aiming to achieve simultaneous or continuous dispensing and drying operations, improving efficiency, reducing floor space, and lowering costs. It includes a mounting plate, a horizontally mounted guide rail on the side wall of the mounting plate, and a sliding plate slidably connected to the guide rail and driven by a first lead screw, which is driven by a first motor. Dispensing heads and dryers are respectively located at both ends of the sliding plate's side wall, with their installation spacing equal to the station spacing between adjacent SMT substrate racks. The sliding plate can be aligned with the same coordinate point of different SMT components in a single linear movement. This innovative structural design integrates dispensing and drying processes, and with the single-axis linear motion control of the sliding plate, it completes both processes simultaneously in a single stroke, eliminating the ineffective time of reciprocating motion in traditional equipment and improving production efficiency.

Description

Technical Field

[0001] This application relates to the field of surface mount component processing, specifically to an SMT component dispensing device. Background Technology

[0002] In the SMT (Surface Mount Technology) production process, dispensing and drying are two crucial steps. Traditional SMT dispensing equipment typically employs a step-by-step operation: first, dispensing the adhesive onto the chip, and then sending the glued chip into a dryer for drying. The drawbacks of this method are low production efficiency, as dispensing and drying cannot be performed simultaneously, leading to longer production cycles and requiring a larger equipment footprint, thus increasing production costs. Utility Model Content

[0003] The purpose of this utility model is to provide an SMT (Surface Mount Technology) dispensing equipment that, through structural optimization, enables simultaneous or continuous dispensing and drying operations, thereby improving efficiency and reducing floor space and costs. To achieve the above objective, this application provides the following technical solution: An SMT dispensing equipment, comprising:

[0004] Mounting plate;

[0005] A guide rail is horizontally and laterally disposed on the side wall of the mounting plate;

[0006] The slide plate is slidably connected to the guide rail via a slider, and its back is connected to the first lead screw via a lead screw nut. The first lead screw is disposed on the side wall of the mounting plate and parallel to the guide rail. The first lead screw is driven by a first motor to control the linear displacement of the slide plate along the guide rail.

[0007] The two ends of the slide plate sidewall are respectively provided with a dispensing head and a dryer. The installation distance between the dispensing head and the dryer on the slide plate is equal to the station distance between adjacent patch substrate frames, ensuring that the two can be aligned with the same coordinate point of different patches during a single linear movement of the slide plate.

[0008] The preferred embodiment of this technical solution further includes a workbench, a mounting bracket, and a horizontal longitudinal drive module; the mounting bracket is fixed to the upper surface of the workbench, and the horizontal longitudinal drive module includes parallel slide rails and a second lead screw in the same direction as the slide rails, one end of the second lead screw being driven by a second motor; the bottom of the mounting plate is provided with a sliding block that is slidably adapted to the slide rails and a nut seat that is threadedly engaged with the second lead screw, and the second motor drives the mounting plate to move horizontally longitudinally along the slide rails through the second lead screw; wherein, the extension direction of the slide rails and the horizontal transverse direction of the guide rails form an orthogonal coordinate system.

[0009] In a preferred embodiment of this technical solution, a synchronous belt drive mechanism is further included, which is disposed between the second motor and the second lead screw. The synchronous belt drive mechanism includes a driving pulley, a driven pulley, and a synchronous belt. The driving pulley is coaxially fixed to the output end of the second motor, the driven pulley is coaxially connected to the end of the second lead screw, and the synchronous belt is engaged and sleeved on the outer periphery of the driving pulley and the driven pulley.

[0010] In this preferred embodiment, the air outlet of the dryer has a gradually narrowing air duct structure.

[0011] In a preferred embodiment of this technical solution, an infrared temperature sensor is embedded in the air outlet of the dryer; the detection end of the infrared temperature sensor is axially aligned with the central airflow channel of the air outlet, and its signal output end is electrically connected to the controller to provide real-time feedback of the airflow temperature to the controller.

[0012] In this preferred embodiment, the substrate holders located below the dispensing head and the dryer have different heights, forming a preset height difference of 30-100mm.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] This invention achieves synergistic optimization of dispensing and drying processes through innovative structural design, offering significant advantages over traditional separate equipment. By integrating the dispensing head and dryer with the workstation spacing as a reference, and utilizing single-axis linear motion control of the slide plate, the dispensing and drying processes are completed synchronously within a single stroke of the equipment, eliminating the wasted time caused by the reciprocating motion of traditional equipment and resulting in a measured increase in production efficiency. This equipment integrates the dispensing head and dryer onto the same slide plate, and by utilizing a reasonable installation spacing, it can complete the dispensing and drying processes on the same machine. This eliminates the need for separate drying equipment or the need to occupy more space for multiple machines, effectively reducing the equipment's footprint in the factory and facilitating optimized workshop layout. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an SMT (Surface Mount Technology) dispensing device proposed in an embodiment of this application;

[0016] Figure 2 This is another perspective view of an SMT placement and dispensing device proposed in the embodiments of this application;

[0017] Figure 3 This is a front view of an SMT placement and dispensing device proposed in an embodiment of this application;

[0018] In the diagram: 1. Mounting plate; 2. Guide rail; 3. Slide plate; 4. Slider; 5. First lead screw; 6. First motor; 7. Dispensing head; 8. Dryer; 9. Patch substrate holder; 10. Worktable; 11. Mounting bracket; 12. Horizontal and vertical drive module; 13. Slide rail; 14. Second lead screw; 15. Second motor; 16. Sliding block; 17. Nut seat; 18. Synchronous belt drive mechanism; 19. Driving pulley; 20. Driven pulley; 21. Synchronous belt; 22. Infrared temperature sensor. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that in the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0023] In order to solve the technical problems in the background art, such as Figure 1-3 As shown, this application provides a technical solution: an SMT (Surface Mount Technology) dispensing device, characterized by the following:

[0024] This SMT placement and dispensing equipment mainly consists of a mounting plate 1, guide rail 2, slide plate 3, slider 4, first lead screw 5, first motor 6, dispensing head 7, and dryer 8. The mounting plate 1, as the foundation component, supports and secures other parts, possessing sufficient strength and rigidity. Its sidewalls provide a stable support surface for the guide rail 2 and the first lead screw 5. The guide rail 2 is horizontally positioned on the sidewall of the mounting plate 1, providing a guide track for the movement of the slide plate 3, ensuring that the slide plate 3 can move smoothly and accurately along a predetermined straight path. The slide plate 3 is slidably connected to the guide rail 2 via the slider 4, which is installed at the bottom of the slide plate 3 and tightly engages with the guide rail 2, allowing the slide plate 3 to slide smoothly on the guide rail 2. The back of the slide plate 3 is connected to the first lead screw 5 via a lead screw nut. The first lead screw 5 is located on the sidewall of the mounting plate 1 and parallel to the guide rail 2. This layout allows the slide plate 3 to be simultaneously guided by the guide rail 2 and driven by the first lead screw 5 during movement, ensuring the linear motion accuracy and stability of the slide plate 3. The first lead screw 5 is driven by the first motor 6. When the first motor 6 operates, it drives the first lead screw 5 to rotate. Through the transmission action of the lead screw nut, the rotational motion is converted into linear displacement of the slide plate 3 along the guide rail 2, thereby achieving precise control of the position of the slide plate 3. The dispensing head 7 and the dryer 8 are respectively set at both ends of the side wall of the slide plate 3, and their installation distance is equal to the station distance between adjacent surface mount base 9. The dispensing head 7 is used to dispense glue to the designated position on the surface mount base 9. It is equipped with a precision glue delivery and control device, which can accurately control the flow rate, pressure and dispensing position of the glue, ensuring the quality and consistency of the dispensing. The dryer 8 is used to quickly dry the glued surface mount base 9. It adopts efficient heating and hot air circulation technology, which can dry the glue in a short time, ensuring that the glue is completely cured before the surface mount components are installed, improving production efficiency and product quality.

[0025] In actual operation, the surface mount base 9 is fixed on the work platform of the equipment at certain intervals. The station spacing between adjacent surface mount base 9 is equal to the installation spacing of the dispensing head 7 and the dryer 8 on the slide plate 3. The surface mount base 9 is adapted to the size of the surface mount, and accurate alignment can be achieved simply by placing the surface mount on the surface mount base 9. When the equipment is started, the first motor 6 operates, driving the first lead screw 5 to rotate. Through the transmission action of the lead screw nut, the slide plate 3 makes linear displacement along the guide rail 2. During the movement of the slide plate 3, the dispensing head 7 and the dryer 8 are respectively aligned with the same coordinate point on different surface mount base 9. The dispensing head 7 performs precise dispensing on the designated position on the surface mount base 9 according to the preset program and parameters. At the same time, the dryer 8 aligns with the dispensed position on another surface mount base 9 to perform a drying operation. Since the distance between the dispensing head 7 and the dryer 8 matches the station spacing of the substrate holder 9, and the movement of the slide plate 3 is controlled by the high-precision first lead screw 5 transmission system, it can be ensured that the dispensing and drying operations can be completed accurately and efficiently during a single linear movement of the slide plate 3, realizing synchronous or continuous operation of dispensing and drying.

[0026] Furthermore, it also includes a worktable 10, a mounting bracket 11, and a horizontal and vertical drive module 12. The worktable 10, as the operating platform of the entire equipment, has a sturdy surface capable of withstanding various forces generated during equipment operation and maintaining stability. The mounting bracket 11 is fixed to the upper surface of the worktable 10, and its structure is designed to support the horizontal and vertical drive module 12 and related components such as the mounting plate 1, ensuring that these components maintain precise positional relationships and stability during operation. One or two mounting brackets 11 can be provided; if two are used, they can be located at opposite ends of the mounting plate 1 to prevent interference with the equipment on the mounting plate 1. The horizontal and vertical drive module 12 mainly consists of a slide rail 13 and a second lead screw 14, which are arranged in parallel. The slide rail 13 provides a guide rail for the longitudinal movement of the mounting plate 1. The second lead screw 14 is in the same direction as the slide rail 13, and one end of it is driven by a second motor 15, which transmits power to the mounting plate 1 through rotation, realizing the longitudinal displacement of the mounting plate 1. The slide rail 13 and the second lead screw 14 are arranged in parallel, and the extension direction of the slide rail 13 forms an orthogonal coordinate system with the horizontal transverse direction of the guide rail 2. This layout allows the mounting plate 1 to move longitudinally in conjunction with the transverse movement of the guide rail 2, achieving precise position control of the dispensing head 7 and the dryer 8 throughout the working area, meeting the dispensing and drying requirements of different substrate holders 9. The bottom of the mounting plate 1 is provided with a sliding block 16 that slides and adapts to the slide rail 13 and a nut seat 17 that is threadedly engaged with the second lead screw 14. The sliding block 16 is installed at the corresponding position on the bottom of the mounting plate 1 and fits tightly with the slide rail 13, allowing the mounting plate 1 to slide smoothly longitudinally along the slide rail 13. The nut seat 17 is fixed to the bottom of the mounting plate 1 and threadedly connected to the second lead screw 14. When the second motor 15 drives the second lead screw 14 to rotate, the rotational motion is converted into horizontal longitudinal movement of the mounting plate 1 along the slide rail 13 through the transmission action of the thread. The second motor 15 is installed at an appropriate position on the workbench 10 or the mounting bracket 11. Its output shaft is connected to one end of the second lead screw 14. By controlling the forward and reverse rotation of the second motor 15, the rotation of the second lead screw 14 is realized, thereby precisely controlling the longitudinal position of the mounting plate 1.

[0027] Furthermore, this embodiment also includes a synchronous belt drive mechanism 18, which is disposed between the second motor 15 and the second lead screw 14. This mechanism primarily transmits the power from the second motor 15 to the second lead screw 14, enabling the horizontal and longitudinal movement of the mounting plate 1. The synchronous belt drive mechanism 18 mainly consists of a driving pulley 19, a driven pulley 20, and a synchronous belt 21. The driving pulley 19 is coaxially fixed to the output end of the second motor 15, and rotates accordingly when the second motor 15 operates. The driven pulley 20 is coaxially connected to the end of the second lead screw 14, and is securely connected to the second lead screw 14 via a key connection or other fixing method to ensure that the driven pulley 20 can drive the second lead screw 14 to rotate synchronously when rotating. The synchronous belt 21 is precisely engaged and sleeved on the outer periphery of the driving pulley 19 and the driven pulley 20, forming a closed transmission circuit. Through the friction and meshing between the synchronous belt 21 and the driving pulley 19 and the driven pulley 20, power is transmitted from the second motor 15 to the second lead screw 14. The synchronous belt drive mechanism 18 transmits motion and power by meshing the belt teeth and pulley teeth, which can achieve a precise transmission ratio and ensure the accurate longitudinal movement position of the mounting plate 1, thereby improving the accuracy of dispensing and drying.

[0028] Furthermore, the air outlet of the dryer 8 adopts a tapered air duct structure. This tapered air duct structure is typically composed of an inner wall surface with a certain taper, with a larger inlet area and a smaller outlet area, forming a gradually narrowing channel. This structural design allows the hot air generated inside the dryer 8 to gradually increase in velocity and gradually decrease in pressure as it passes through the air outlet, thereby concentrating and quickly directing the hot air towards the adhesive position on the SMT substrate holder 9, improving drying efficiency. The tapered air duct structure, as part of the air outlet of the dryer 8, is connected to the internal air duct of the dryer 8, ensuring that the hot air can smoothly pass through the tapered air duct from inside the dryer 8 and then be blown towards the SMT substrate holder 9. During the operation of the SMT dispensing equipment, when the slide plate 3 moves to align the dryer 8 with the adhesive position on the SMT substrate holder 9, the dryer 8 starts, generating hot air. The hot air first enters the air duct inside the dryer 8, and then, guided by the tapered air duct structure, gradually accelerates and concentrates, blowing towards the adhesive on the SMT substrate holder 9.

[0029] Furthermore, an infrared temperature sensor 22 is embedded inside the air outlet of the dryer 8. This arrangement allows the sensor to directly contact and accurately sense the temperature of the airflow exiting the dryer 8, avoiding interference from the external environment and ensuring the accuracy of the measurement results. The detection end of the infrared temperature sensor 22 is axially aligned with the center airflow channel of the air outlet. This design allows the sensor to capture the most representative airflow temperature in the mainstream channel to the greatest extent possible, avoiding inaccurate temperature measurements due to the measurement position deviating from the mainstream area, thus providing a precise data basis for subsequent temperature monitoring and control. An electrical connection is established between the signal output end of the infrared temperature sensor 22 and the controller. This connection ensures that the temperature signal measured by the sensor can be transmitted to the controller quickly and stably, providing timely and accurate data support for the controller's subsequent operations.

[0030] Furthermore, the substrate holder 9 located below the dispensing head 7 and the two substrate holders 9 located below the dryer 8 have different heights, forming a preset height difference of 30-100mm between them. The dryer 8 generates hot airflow during operation to accelerate the curing process of the adhesive. However, if the hot airflow directly impacts the uncured adhesive, it may cause the adhesive to flow, deform, or experience performance degradation. By setting a height difference, the substrate after dispensing is positioned at a relatively low position. The hot airflow generated by the dryer 8 gradually diffuses and weakens as it rises, thereby reducing direct impact on the uncured adhesive and ensuring the curing quality of the adhesive and the stability of the substrate.

[0031] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An SMT (Surface Mount Technology) dispensing device, characterized in that, include: Mounting plate (1; Guide rail (2), which is horizontally arranged on the side wall of the mounting plate (1); The slide plate (3) is slidably connected to the guide rail (2) via a slider (4), and its back is connected to the first lead screw (5) via a lead screw nut. The first lead screw (5) is disposed on the side wall of the mounting plate (1) and parallel to the guide rail (2). The first lead screw (5) is driven by the first motor (6) to control the linear displacement of the slide plate (3) along the guide rail (2). The two ends of the sidewall of the slide plate (3) are respectively provided with a dispensing head (7) and a dryer (8). The installation distance between the dispensing head (7) and the dryer (8) on the slide plate (3) is equal to the station distance between adjacent patch substrate frames (9), ensuring that the two can be aligned with the same coordinate point of different patches during a single linear movement of the slide plate (3).

2. The SMT placement and dispensing equipment according to claim 1, characterized in that, It also includes a worktable (10), a mounting frame (11), and a horizontal longitudinal drive module (12); the mounting frame (11) is fixed to the upper surface of the worktable (10), and the horizontal longitudinal drive module (12) includes a parallel slide rail (13) and a second lead screw (14) in the same direction as the slide rail (13), one end of the second lead screw (14) is driven by a second motor (15); the bottom of the mounting plate (1) is provided with a sliding block (16) that is slidably adapted to the slide rail (13) and a nut seat (17) that is threadedly engaged with the second lead screw (14), and the second motor (15) drives the mounting plate (1) to move horizontally longitudinally along the slide rail (13) through the second lead screw (14); wherein, the extension direction of the slide rail (13) forms an orthogonal coordinate system with the horizontal transverse direction of the guide rail (2).

3. The SMT placement and dispensing equipment according to claim 2, characterized in that, It also includes a synchronous belt drive mechanism (18), which is disposed between the second motor (15) and the second lead screw (14); the synchronous belt drive mechanism (18) includes a driving pulley (19), a driven pulley (20) and a synchronous belt (21), the driving pulley (19) is coaxially fixed to the output end of the second motor (15), the driven pulley (20) is coaxially connected to the end of the second lead screw (14), and the synchronous belt (21) is engaged and sleeved on the outer periphery of the driving pulley (19) and the driven pulley (20).

4. The SMT placement and dispensing equipment according to claim 2, characterized in that, The air outlet of the dryer (8) has a gradually narrowing air duct structure.

5. The SMT placement and dispensing equipment according to claim 4, characterized in that, The dryer (8) has an infrared temperature sensor (22) embedded in its air outlet; the detection end of the infrared temperature sensor (22) is axially aligned with the central airflow channel of the air outlet, and its signal output end is electrically connected to the controller to provide real-time feedback of the airflow temperature to the controller.

6. The SMT placement and dispensing equipment according to any one of claims 1-5, characterized in that, The substrate holder (9), located below the dispensing head (7) and the dryer (8) respectively, has different heights, forming a preset height difference of 30-100mm.

Images