Stacked PCB (Printed Circuit Board) separating device

Abstract

The utility model relates to the field of PCB (Printed Circuit Board) production and manufacturing equipment, in particular to a stacked PCB material plate splitting device, which comprises a machine body, a lifting platform, a baffle plate, a lifting driver and a discharging driver. The top surface of the lifting platform is provided with a horizontal bearing surface used for bearing stacked PCBs. The baffle is vertically fixed to the machine body and arranged around the lifting table, and a discharging port is formed in one side of the top of the baffle and aligned to the conveying belt. The lifting driver is installed on the machine body to drive the lifting table to move up and down in the vertical direction. The discharging driver is installed over the lifting table and comprises an elastic base, a driving motor and a friction wheel, the friction wheel is installed on the machine body through the elastic base, and elastic deformation of the elastic base drives the friction wheel to move up and down; the driving motor is connected with the friction wheel for driving the friction wheel to rotate; the movement direction of the bottom of the friction wheel points to the discharging port. The PCB separating device has the advantages of being simple in structure, high in board separating speed and not affected by unevenness of the surface of the PCB.

Description

Technical Field

[0001] This utility model relates to the field of PCB manufacturing equipment, specifically to a device for loading stacked PCB substrates. Background Technology

[0002] Printed circuit boards (PCBs) serve as the basic carrier for the installation and connection of electronic components. With their intricate copper wire layout formed through etching processes, they can precisely connect numerous electronic components to build complex electronic circuit systems. Therefore, they occupy a pivotal position in the manufacturing process of various electronic products and are used in a wide range of fields, including communications, consumer electronics, industrial control, and automotive electronics.

[0003] In the PCB manufacturing process, key processes such as surface mount technology (SMT), drilling, and testing all require the stacked PCBs to be unfolded one by one and accurately transported to the corresponding workstations. This process is known in the industry as "board loading" or "board splitting".

[0004] Currently, the PCB industry generally uses two methods for board separation: manual board loading and vacuum suction board loading machines. While manual board loading offers some flexibility, it suffers from significant shortcomings in efficiency and precision, making it difficult to meet the demands of large-scale production. Vacuum suction board loading machines, on the other hand, use robotic arms or servo systems to precisely drive vacuum suction cups to pick up the top of the PCB, then remove it sheet by sheet from the stack. Their significant advantages lie in high separation accuracy and strong adaptability to PCBs of different specifications and sizes.

[0005] However, the limitations of this equipment cannot be ignored. On the one hand, the purchase and maintenance costs of the robotic arm are high, which increases the production costs of enterprises. On the other hand, it has strict requirements for the smoothness of the PCB surface. Once the PCB surface is uneven or has defects such as vias, it is very easy for the PCB to fall off during the separation process, resulting in production interruption and affecting production efficiency. Utility Model Content

[0006] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a stacked PCB board separation device. This device can use the friction of friction wheels to separate stacked PCBs in sequence, and will not cause PCBs to fall off during the separation process due to the presence of vias or unevenness of the PCBs.

[0007] To achieve the above objectives, this utility model provides a stacked PCB board separating device, comprising:

[0008] Organism;

[0009] The lifting platform has a horizontal support surface on its top surface for supporting stacked PCBs.

[0010] A baffle is vertically fixed to the machine body. The baffle is arranged around the lifting platform. A discharge port is provided on one side of the top of the baffle, and the discharge port is aligned with the conveyor belt.

[0011] The lifting drive is installed on the machine body to drive the lifting platform to move up and down vertically;

[0012] The discharge driver is installed directly above the lifting platform. The discharge driver includes an elastic seat, a drive motor, and a friction wheel. The friction wheel is mounted on the machine body through the elastic seat. The elastic deformation of the elastic seat drives the friction wheel to move up and down. The drive motor is connected to the friction wheel to drive the friction wheel to rotate. The bottom of the friction wheel moves in the direction of the discharge port.

[0013] In some embodiments, the outer peripheral surface of the friction wheel is made of rubber, and the peripheral surface of the friction wheel contacts the top surface of the stacked PCB.

[0014] In some embodiments, the elastic seat includes an extended state and a compressed deformation state. In the extended state, the bottom of the friction wheel is lower than the lower edge of the discharge port. In the compressed deformation state, the bottom of the friction wheel is higher than the lower edge of the discharge port.

[0015] In some embodiments, the elastic seat includes a base, a telescopic rod, and a spring; the base is fixed to the machine body, the telescopic rod is vertically arranged and its top is fixed to the base, the bottom of the telescopic rod forms a mounting part, a drive motor is fixed to the mounting part, and the output shaft of the drive motor is connected to a friction wheel. The spring is sleeved on the telescopic rod, and the top of the spring supports the bottom of the base, which in turn supports the mounting part.

[0016] In some embodiments, multiple discharge drivers are provided, and the multiple discharge drivers are spaced apart along the PCB discharge movement direction.

[0017] In some embodiments, the lifting drive includes a lead screw, a lead screw nut, and a lifting motor. The lead screw is vertically mounted and rotatably installed on the machine body. The output shaft of the lifting motor is connected to the lead screw to drive its rotation. The lead screw nut is fixed to the lifting platform and is sleeved on the lead screw to engage with it.

[0018] In some implementations, the lifting motor is a servo motor.

[0019] In some embodiments, the lifting drive further includes a guide rod parallel to the lead screw, and the edge of the lifting platform is provided with a through hole, which is sleeved on the guide rod.

[0020] In some embodiments, the lifting drive includes two, left and right, which are respectively located on the left and right sides of the PCB discharge direction of the lifting platform.

[0021] The stacked PCB board separating device of the present invention, which applies the above-mentioned technical solution, has the following effects:

[0022] In this application, the friction of a friction wheel is used to propel the PCB located at the top of the stacked PCBs toward the discharge port. A lifting drive moves the stacked PCBs up and down. When the lifting drive moves upward, the PCB at the top contacts the friction wheel and experiences a force moving it toward the discharge port. After the entire PCB passes the lower edge of the discharge port, it is transferred from the discharge port to the conveyor belt under the action of the friction of the friction wheel. The second tallest PCB is still below the lower edge of the discharge port and is blocked by a baffle, so it will not be stuck to the top PCB and carried away with it.

[0023] The technical solution of this utility model has a simple structure, fast board separation speed, and is not affected by the unevenness of the PCB surface.

[0024] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0025] Figure 1 This is a simplified diagram of the mechanism of this utility model;

[0026] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0027] Explanation of reference numerals in the attached figures

[0028] 1-The body;

[0029] 2-Lifting platform;

[0030] 3-Baffle, 3a-Discharge port;

[0031] 4-Lifting driver, 4a-Lead screw, 4b-Lead screw nut, 4c-Lifting motor;

[0032] 5-Discharge driver, 5a-Elastic seat, 5a1-Base, 5a2-Telescopic rod, 5a3-Spring, 5b-Drive motor, 5c-Friction wheel;

[0033] 6-Conveyor belt;

[0034] 7-PCB. Detailed Implementation

[0035] The specific embodiments of this utility model are described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0036] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0037] This utility model provides a stacked PCB board separation device, comprising:

[0038] Body 1,

[0039] Lifting platform 2 has a horizontal support surface on its top surface for supporting stacked PCBs.

[0040] Baffle 3 is vertically fixed on the machine body 1. The baffle 3 is arranged around the lifting platform 2. A discharge port 3a is provided on one side of the top of the baffle 3, and the discharge port 3a is aligned with the conveyor belt 6.

[0041] The lifting drive 4 is installed on the machine body 1 to drive the lifting platform 2 to move up and down in the vertical direction;

[0042] The discharge driver 5 is installed directly above the lifting platform 2. The discharge driver 5 includes an elastic seat 5a, a drive motor 5b, and a friction wheel 5c. The friction wheel 5c is installed on the machine body 1 through the elastic seat 5a. The elastic deformation of the elastic seat 5a drives the friction wheel 5c to move up and down. The drive motor 5b is connected to the friction wheel 5c to drive the friction wheel 5c to rotate. The movement direction of the bottom of the friction wheel 5c points towards the discharge port 3a.

[0043] The stacked PCB board separating device of this embodiment includes a body 1, a lifting platform 2, a baffle 3, a lifting driver 4, and a discharging driver 5.

[0044] The top surface of the lifting platform 2 is provided with a horizontal bearing surface for holding stacked PCBs. The baffle 3 is vertically fixed on the machine body 1 and is arranged around the lifting platform 2. There is a discharge port 3a on one side of its top. The discharge port 3a is aligned with the conveyor belt 6 so as to transport the sorted PCBs to the next stage.

[0045] The lifting drive 4 is mounted on the machine body 1 and is used to drive the lifting platform 2 to move up and down vertically. (See attached diagram) Figure 1 The topmost PCB is first fed out of the discharge port 3a, passing over its lower edge, while the lower PCBs are still blocked by the baffle 3. Once the topmost PCB has completely left the discharge port 3a, the lower PCBs rise again to become the topmost PCB, repeating the above process. This achieves the one-by-one transfer of stacked PCBs.

[0046] The discharge driver 5 is installed directly above the lifting platform 2 and includes an elastic seat 5a, a drive motor 5b, and a friction wheel 5c. The friction wheel 5c is mounted on the machine body 1 via the elastic seat 5a. The elastic deformation of the elastic seat 5a drives the friction wheel 5c to move up and down. The drive motor 5b is connected to the friction wheel 5c and drives it to rotate. The bottom of the friction wheel 5c moves towards the discharge port 3a. The rotation of the friction wheel 5c drives the PCB to move towards the discharge port 3a, thus achieving board separation.

[0047] The outer peripheral surface of the friction wheel 5c is made of rubber, and its peripheral surface contacts the top surface of the stacked PCBs. In this embodiment, the outer peripheral surface of the friction wheel 5c is made of rubber, and its peripheral surface contacts the top surface of the stacked PCBs. The rubber material of the friction wheel 5c can increase the friction with the PCB surface, and the rubber material of the friction wheel 5c can avoid scratching the PCB. Moreover, the friction of the friction wheel 5c is not affected by the unevenness of the PCB surface or vias. It is especially suitable for PCBs with uneven surfaces and wire holes or vias, overcoming the shortcomings of existing vacuum adsorption board loading machines that have high requirements for PCB surface smoothness.

[0048] The elastic seat 5a has two states: extended and compressed. When the elastic seat 5a is in the extended state, the bottom of the friction wheel 5c is lower than the lower edge of the discharge port 3a. When board separation is required, the stacked PCBs can be placed on the bearing surface of the lifting platform 2. The lifting platform 2 rises, and the topmost PCB contacts the friction wheel 5c. As the lifting platform 2 continues to rise, the elastic seat 5a is compressed and deformed, applying a downward elastic force to the friction wheel 5c, increasing the pressure between the friction wheel 5c and the PCB surface. At this time, the height of the PCB and the friction wheel 5c is higher than the lower edge of the discharge port 3a. The friction wheel 5c is rotated by the drive motor 5b, using friction to carry the topmost PCB towards the discharge port 3a, thus realizing the board separation operation. This design of the elastic seat 5a can adapt to PCB stacks of different thicknesses, ensuring that the friction wheel 5c always maintains good contact with the PCB surface, improving the adaptability and reliability of board separation.

[0049] The specific structure of the elastic seat 5a includes a base 5a1, a telescopic rod 5a2, and a spring 5a3. The base 5a1 is fixed to the machine body 1. The telescopic rod 5a2 is vertically positioned, its top fixed to the base 5a1, and its bottom forming a mounting part. The drive motor 5b is fixed to the mounting part, and its output shaft is connected to the friction wheel 5c. The spring 5a3 is sleeved on the telescopic rod 5a2, supporting the base 5a1 at the top and the mounting part at the bottom. Through the elastic force of the spring 5a3, the elastic seat 5a can extend and retract, thereby driving the friction wheel 5c to move up and down to adapt to different board separation requirements. This structure is simple and reliable, easy to manufacture and maintain, and can effectively ensure stable pressure between the friction wheel 5c and the PCB, improving board separation accuracy and efficiency.

[0050] Multiple ejector drivers 5 are set up at intervals along the PCB ejection direction. The coordinated action of multiple ejector drivers 5 can apply force to the PCB more evenly, avoiding PCB deformation or damage caused by excessive force at a single point. At the same time, it can improve the speed and stability of board separation and meet the needs of different production cycles.

[0051] The lifting drive 4 in this embodiment includes a lead screw, a lead screw nut 4b, and a lifting motor 4c. The lead screw is vertically mounted and rotatably installed on the machine body 1. The output shaft of the lifting motor 4c is connected to the lead screw, driving the lead screw to rotate. The lead screw nut 4b is fixed to the lifting platform and is sleeved on the lead screw to cooperate with it. When the lifting motor 4c rotates, the lead screw rotates accordingly, and through the transmission action of the lead screw nut 4b, it drives the lifting platform 2 to move up and down in the vertical direction. This lead screw transmission method has the advantages of high precision, good stability, and strong load capacity, and can accurately control the lifting position of the lifting platform 2, ensuring the transfer accuracy of the PCB during the board separation process.

[0052] Based on the above embodiments, the lifting motor 4c adopts a servo motor. Servo motors feature high precision, high response speed, and smooth low-speed operation, enabling precise control of the lifting motion of the lifting platform 2, improving the overall performance and reliability of the separating device, and better adapting to different production scenarios and process requirements.

[0053] In this embodiment, the lifting drive 4 also includes a guide rod, which is arranged parallel to the lead screw. A through hole is provided at the edge of the lifting platform, and the through hole is fitted onto the guide rod. The function of the guide rod is to provide guiding support for the lifting platform 2, ensuring that the lifting platform 2 remains horizontal and stable during lifting, preventing the lifting platform 2 from tilting or swaying due to the simple rotation of the lead screw, and further improving the separation accuracy and the reliability of equipment operation.

[0054] Two lifting drivers 4 are provided, one on the left and one on the right, located on the left and right sides of the PCB discharge direction of the lifting platform. This symmetrical layout can apply driving force to the lifting platform 2 more evenly, making the lifting movement of the lifting platform 2 more stable, avoiding twisting or deformation caused by uneven force on one side, extending the service life of the equipment, and also helping to improve the quality and efficiency of board separation.

[0055] Work process:

[0056] In actual operation, the operator first places the stacked PCBs on the horizontal support surface of the lifting platform 2, ensuring that the PCBs are stacked neatly and within the area surrounded by the baffle 3. Then, the lifting drive 4 is activated, and the lifting platform 2 moves vertically upward under the drive of the lifting motor 4c. At the same time, the drive motor 5b in the discharge drive 5 drives the friction wheel 5c to rotate, with the bottom of the friction wheel 5c pointing towards the discharge port 3a. As the lifting platform 2 rises, the topmost PCB comes into contact with the rotating friction wheel 5c, and under the action of friction, the PCB moves towards the discharge port 3a. After the entire PCB board passes the lower edge of the discharge port 3a, it is transferred from the discharge port 3a to the conveyor belt 6 under the continuous action of the friction wheel 5c, completing the separation operation of one PCB. The remaining PCBs remain on the lifting platform 2 due to the obstruction of the baffle 3. The lifting platform 2 continues to rise, repeating the above process to achieve the separation of stacked PCBs one by one. Throughout the board separation process, operators can adjust parameters such as lifting speed and friction wheel rotation speed through the control system's interface to adapt to PCBs of different specifications and thicknesses, thus meeting different production needs.

[0057] The stacked PCB board separating device of this invention can be widely used in various stages of PCB manufacturing, such as surface mounting, drilling, and testing.

[0058] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0059] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0060] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A PCB board separation device for stacked PCBs, characterized in that, include: Body (1), The lifting platform (2) has a horizontal bearing surface on its top surface for supporting stacked PCBs. A baffle (3) is vertically fixed on the machine body (1). The baffle (3) is arranged around the lifting platform (2). A discharge port (3a) is provided on one side of the top of the baffle (3). The discharge port (3a) is aligned with the conveyor belt (6). The lifting drive (4) is installed on the machine body (1) to drive the lifting platform (2) to move up and down in the vertical direction; The discharge driver (5) is installed directly above the lifting platform (2). The discharge driver (5) includes an elastic seat (5a), a drive motor (5b), and a friction wheel (5c). The friction wheel (5c) is installed on the machine body (1) through the elastic seat (5a). The elastic deformation of the elastic seat (5a) drives the friction wheel (5c) to move up and down. The drive motor (5b) is connected to the friction wheel (5c) to drive the friction wheel (5c) to rotate. The movement direction of the bottom of the friction wheel (5c) points to the discharge port (3a).

2. The PCB board separation device according to claim 1, characterized in that, The outer peripheral surface of the friction wheel (5c) is made of rubber, and the peripheral surface of the friction wheel (5c) is in contact with the top surface of the stacked PCB.

3. The stacked PCB board separating device according to claim 1, characterized in that, The elastic seat (5a) includes an extended state and a compressed deformation state; In the extended state, the bottom of the friction wheel (5c) is lower than the lower edge of the discharge port (3a); In the compressed deformation state, the bottom of the friction wheel (5c) is higher than the lower edge of the discharge port (3a).

4. The stacked PCB board separating device according to claim 1, characterized in that, The elastic seat (5a) includes a base (5a1), a telescopic rod (5a2), and a spring (5a3); the base (5a1) is fixed on the body (1), the telescopic rod (5a2) is vertically arranged and its top is fixed on the base (5a1), the bottom of the telescopic rod (5a2) forms a mounting part, the drive motor (5b) is fixed on the mounting part, and the output shaft of the drive motor (5b) is connected to the friction wheel (5c); The spring (5a3) is sleeved on the telescopic rod (5a2), and the top of the spring (5a3) supports the base (5a1) and the bottom supports the mounting part.

5. The PCB board separation device according to claim 1, characterized in that, Multiple discharge drivers (5) are provided, and the multiple discharge drivers (5) are spaced apart along the PCB discharge movement direction.

6. The stacked PCB board separating device according to claim 1, characterized in that, The lifting drive (4) includes a lead screw, a lead screw nut (4b), and a lifting motor (4c); The lead screw is vertically mounted on the machine body (1). The output shaft of the lifting motor (4c) is connected to the lead screw to drive the lead screw to rotate. The lead screw nut (4b) is fixed on the lifting platform and is sleeved on the lead screw to cooperate with the lead screw (4a).

7. The stacked PCB board separating device according to claim 6, characterized in that, The lifting motor (4c) is a servo motor.

8. The stacked PCB board separating device according to claim 6, characterized in that, The lifting drive (4) also includes a guide rod, which is parallel to the lead screw. The edge of the lifting platform is provided with a through hole, which is sleeved on the guide rod.

9. The PCB board separation device according to claim 1, characterized in that, The lifting driver (4) includes two, left and right, which are respectively located on the left and right sides of the PCB discharge direction of the lifting platform.

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