Automatic tapping and pin removing machine

Abstract

The utility model discloses an automatic rubber cutting and PIN withdrawing machine relates to the field of PCB board production. This automatic rubber cutting and PIN withdrawing machine, including the feeding unit, processing unit and separation unit that connect in proper order, the feeding unit is used for bearing the combination of laminating's PCB board, aluminum sheet and backing plate and is transported to next working procedure, processing unit contains processing rack, processing conveyer belt, PIN withdrawing mechanism, first laser cutting mechanism and second laser cutting mechanism. This automatic rubber cutting and PIN withdrawing machine, through the feeding conveyer belt of feeding unit, feeding manipulator realizes automatic feeding and transportation, and PIN withdrawing mechanism, first laser cutting mechanism and second laser cutting mechanism of processing unit complete automatic PIN and rubber cutting, and separation unit realizes the automatic separation of aluminum sheet, backing plate and PCB board, and the whole process does not need manual intervention, and the manpower input is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of PCB board manufacturing technology, specifically to an automatic glue-cutting and pin-removing machine. Background Technology

[0002] In the PCB manufacturing process, drilled PCBs are typically secured to aluminum sheets and backing plates using pins and tape. They require disassembly before proceeding to subsequent processes. Traditional methods rely heavily on manual operation, which has several drawbacks: First, manual pin removal can damage the pin holes, and adhesive residue or scratches can occur during adhesive cutting, leading to poor quality control. Second, manual loading and separation are inefficient, making it difficult to meet high-volume production demands, and labor costs are rising annually with industry upgrades. Third, when there are differences in the weight and size of stacked boards, inconsistent manual operation can easily result in board drops, jams, and other anomalies, affecting production continuity.

[0003] To address these issues, automated equipment has become a trend, but existing equipment often suffers from problems such as complex structure, slow changeover, and insufficient separation accuracy. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic glue-cutting and pin-removing machine, which solves the problems of low efficiency, unstable quality control, and high cost of manual operation during the disassembly of the aluminum sheet, PCB board, and pad assembly after PCB board drilling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic adhesive cutting and pin removal machine, comprising a feeding unit, a processing unit, and a separating unit connected in sequence. The feeding unit is used to carry and transport stacked PCB boards, aluminum sheets, and pad assemblies to the next process. The processing unit includes a processing frame, a processing conveyor belt, a pin removal mechanism, a first laser cutting mechanism, and a second laser cutting mechanism. The processing conveyor belt is mounted on the processing frame, and the pin removal mechanism, the first laser cutting mechanism, and the second laser cutting mechanism are positioned above the processing conveyor belt. The pin removal mechanism is pneumatically driven to remove pins from the assembly. The first laser cutting mechanism and the second laser cutting mechanism are used to cut the adhesive tape on the edge of the PCB board.

[0006] Preferably, the feeding unit includes a feeding frame, a feeding conveyor belt, and a turning mechanism. The feeding conveyor belt is installed on the feeding frame and can transport the assembly to the processing conveyor belt. The turning mechanism is located above the feeding conveyor belt.

[0007] Preferably, a central positioning mechanism and a loading robot are also installed above the feeding conveyor belt.

[0008] Preferably, a feeding space is provided on the side of the feeding frame, and a feeding tray is installed inside the feeding space. The feeding tray is located on the side of the feeding robot, and a feeding trolley can be pushed into the feeding space. The feeding tray is located above the feeding trolley.

[0009] Preferably, a first flipping mechanism and a second flipping mechanism are installed above the processing conveyor belt, and the first laser cutting mechanism and the second laser cutting mechanism are located on the sides of the first flipping mechanism and the second flipping mechanism, respectively.

[0010] Preferably, a left and right correction mechanism for the PIN removal is installed below the PIN removal mechanism, and the left and right correction mechanism for the PIN removal is located above the processing conveyor belt.

[0011] Preferably, the separation unit includes an aluminum sheet separation mechanism and a pad separation mechanism connected in sequence, and the aluminum sheet separation mechanism is connected to the processing frame.

[0012] Preferably, an aluminum sheet separation hopper is installed below the aluminum sheet separation mechanism, and a first pad separation hopper and a second pad separation hopper are installed below the pad separation mechanism.

[0013] Preferably, a transition conveyor is installed inside the pad separation mechanism.

[0014] Its beneficial effects are as follows: 1. This automatic glue-cutting and PIN-removing machine achieves automatic feeding and conveying through the feeding conveyor belt and feeding robot of the feeding unit. The PIN-removing mechanism, the first laser cutting mechanism and the second laser cutting mechanism of the processing unit complete the automatic PIN removal and glue cutting. The separation unit realizes the automatic separation of aluminum sheet, pad and PCB board. No manual intervention is required throughout the process, which greatly reduces the labor input.

[0015] 2. This automatic adhesive cutting and pin removal machine uses a pneumatically driven pin removal mechanism, combined with a left and right correction mechanism, to accurately remove pins and avoid damage to the pin holes; the first and second laser cutting mechanisms use laser cutting of the adhesive tape, resulting in a low rate of adhesive cutting abnormalities and reducing the risk of PCB board scratches; the aluminum sheet separation mechanism and pad separation mechanism of the separation unit achieve precise separation, reducing abnormalities such as board drop and board jamming. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Feeding unit; 11. Feeding frame; 12. Feeding conveyor belt; 13. Turning mechanism; 14. Center positioning mechanism; 15. Feeding robot; 16. Feeding pallet; 17. Feeding trolley; 2. Processing unit; 21. Processing frame; 22. Processing conveyor belt; 23. Pin removal mechanism; 24. First turning mechanism; 25. Second turning mechanism; 26. First laser cutting mechanism; 27. Second laser cutting mechanism; 28. Pin removal left and right correction mechanism; 3. Separation unit; 31. Aluminum sheet separation mechanism; 32. Pad plate separation mechanism; 33. Transition conveyor table; 34. Aluminum sheet separation bin; 35. First pad plate separation bin; 36. Second pad plate separation bin. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] This utility model discloses an automatic glue-cutting and pin-removing machine, according to the appendix. Figure 1 As shown, the assembly includes a loading unit 1, a processing unit 2, and a separation unit 3 connected in sequence. The loading unit 1 is used to carry and transport the stacked PCB board, aluminum sheet, and pad assembly to the next process. The processing unit 2 includes a processing frame 21, a processing conveyor belt 22, a pin removal mechanism 23, a first laser cutting mechanism 26, and a second laser cutting mechanism 27. The processing conveyor belt 22 is mounted on the processing frame 21, and the pin removal mechanism 23, the first laser cutting mechanism 26, and the second laser cutting mechanism 27 are located above the processing conveyor belt 22. The pin removal mechanism 23 is pneumatically driven to remove pins from the assembly. The first laser cutting mechanism 26 and the second laser cutting mechanism 27 are used to cut the tape on the edge of the PCB board.

[0022] Automatic feeding and conveying are achieved through the feeding conveyor belt 12 and feeding robot 15 of the feeding unit 1. The PIN removal mechanism 23, the first laser cutting mechanism 26 and the second laser cutting mechanism 27 of the processing unit 2 complete the automatic PIN removal and glue cutting. The separation unit 3 realizes the automatic separation of aluminum sheet, pad and PCB board. No manual intervention is required throughout the process, which greatly reduces the input of manpower.

[0023] The pin removal mechanism 23 is pneumatically driven and, together with the pin removal left and right correction mechanism 28, can accurately remove the pins and avoid damage to the pin holes; the first laser cutting mechanism 26 and the second laser cutting mechanism 27 use laser cutting tape, resulting in a low rate of tape cutting abnormalities and reducing the risk of PCB board scratches; the aluminum sheet separation mechanism 31 and the pad separation mechanism 32 of the separation unit 3 achieve precise separation, reducing abnormalities such as board drop and board jamming.

[0024] The pin removal mechanism 23 uses a cylinder in conjunction with a vacuum generator to remove the pins; the compressed air pressure during operation is 6-7Kg / cm², and the cylinder stroke is designed according to the pin length to ensure that the pin is completely removed from the PCB board assembly; during the pin removal process, a photoelectric sensor detects whether the pin has been completely removed to avoid omission.

[0025] According to the appendix Figure 1 As shown, the feeding unit 1 further includes a feeding frame 11, a feeding conveyor belt 12 and a turning mechanism 13. The feeding conveyor belt 12 is installed on the feeding frame 11 and can transport the assembly to the processing conveyor belt 22. The turning mechanism 13 is located above the feeding conveyor belt 12.

[0026] The flipping mechanism 13 uses a servo motor to drive the reducer and achieves 180-degree flipping through gear transmission, with a flipping speed of 5-8 seconds per flip. During the flipping process, the suction cup is used to adhere to the surface of the assembly to ensure that there is no slippage during flipping. The vacuum degree of the suction cup is controlled by a vacuum generator and is set to -60kPa to -80kPa.

[0027] Both the feeding conveyor belt 12 and the processing conveyor belt 22 are synchronous belt drives, driven by stepper motors, and the conveying speed can be adjusted by PLC; the speed of the feeding conveyor belt 12 is 10-15m / min, and the speed of the processing conveyor belt 22 is set according to the production speed requirements.

[0028] A central positioning mechanism 14 and a loading robot 15 are also installed above the feeding conveyor belt 12.

[0029] The central positioning mechanism 14 consists of two sets of symmetrical positioning cylinders and photoelectric sensors. By detecting the edge position of the PCB board assembly, it drives the cylinders to push the material to the center reference line; the positioning accuracy is ±0.5mm, ensuring the positional accuracy of subsequent pin removal and cutting processes.

[0030] The side of the feeding frame 11 is provided with a feeding space, and a feeding tray 16 is installed inside the feeding space. The feeding tray 16 is located on the side of the feeding robot 15, and a feeding trolley 17 can be pushed into the feeding space. The feeding tray 16 is located above the feeding trolley 17.

[0031] A first flipping mechanism 24 and a second flipping mechanism 25 are installed above the conveyor belt 22, and a first laser cutting mechanism 26 and a second laser cutting mechanism 27 are located on the sides of the first flipping mechanism 24 and the second flipping mechanism 25, respectively.

[0032] Both the first laser cutting mechanism 26 and the second laser cutting mechanism 27 use 30W laser tubes with a focusing lens focal length of 12mm. When cutting long-side tape, the laser power is set to 25-30W and the cutting speed is 50-80mm / s. When cutting short-side tape, the power is adjusted to 20-25W and the speed is 60-100mm / s.

[0033] The first flipping mechanism 24 and the second flipping mechanism 25 are both driven by stepper motors, with a rotation angle accuracy of ±0.5 degrees and a rotation time of 3-5 seconds per cycle. Before rotation, the photoelectric sensor confirms that the assembly is in place, and after rotation, the positioning pin locks the position to ensure that the first laser cutting mechanism 26 and the second laser cutting mechanism 27 are aligned with the edge of the tape.

[0034] A PIN removal mechanism 28 is installed below the PIN removal mechanism 23, and the PIN removal mechanism 28 is located above the processing conveyor belt 22.

[0035] The PIN retraction and left / right correction mechanism 28 uses a servo motor to drive a ball screw to achieve a left / right adjustment of ±70mm. During the correction process, the position of the PIN hole is captured by an image camera and fed back to the embedded all-in-one machine to calculate the offset. Then, the servo motor is controlled by the PLC to complete the correction. The adjustment response time is ≤0.5s.

[0036] The separation unit 3 includes an aluminum sheet separation mechanism 31 and a pad separation mechanism 32 connected in sequence, and the aluminum sheet separation mechanism 31 is connected to the processing frame 21.

[0037] An aluminum sheet separation bin 34 is installed below the aluminum sheet separation mechanism 31, and a first pad plate separation bin 35 and a second pad plate separation bin 36 are installed below the pad plate separation mechanism 32.

[0038] The transition conveyor 33 is installed inside the pad separation mechanism 32.

[0039] The aluminum sheet separation mechanism 31 identifies the thickness difference between the aluminum sheet and the PCB board through an image camera, and drives the suction cup to selectively adsorb the aluminum sheet; the separated aluminum sheet falls into the aluminum sheet separation bin 34 through an inclined slide.

[0040] The pad separation mechanism 32 automatically sorts recyclable and non-recyclable pads using vision. Specifically, it detects the wear level on the pad surface using a camera. When the wear level is ≤0.2mm, the pad is determined to be recyclable and sent to the first pad separation bin 35; otherwise, it is sent to the second pad separation bin 36. The transition conveyor 33 uses belt drive, and its speed is matched with the processing conveyor belt 22 to ensure a smooth transition of materials.

[0041] Working principle: Material loading stage: The loading trolley 17 pushes the stacked PCB board, aluminum sheet and pad assembly into the loading space of the loading unit 1. The loading robot 15 grabs the assembly from the loading tray 16 above and places it on the loading conveyor belt 12. The center positioning mechanism 14 positions the assembly. The flipping mechanism 13 flips the assembly 180 degrees as required. Then the loading conveyor belt 12 transports the assembly to the processing conveyor belt 22 of the processing unit 2.

[0042] Processing stage: The processing conveyor belt 22 drives the assembly to pass through the pin removal mechanism 23 in sequence. The pin removal left and right correction mechanism 28 adjusts the position of the assembly. The pin removal mechanism 23 removes the pins by pneumatic drive. Then, the first flipping mechanism 24 and the second flipping mechanism 25 drive the assembly to complete a 90-degree rotation, so that the tape on the edge of the PCB board is aligned with the first laser cutting mechanism 26 and the second laser cutting mechanism 27, and the long and short sides of the tape are cut.

[0043] Separation stage: The processed assembly is conveyed to the separation unit 3, where the aluminum sheet separation mechanism 31 separates the aluminum sheets and sends them into the aluminum sheet separation bin 34; the remaining PCB board and pad are conveyed to the pad separation mechanism 32 via the transition conveyor 33. After the pad is separated, it is sent to the first pad separation bin 35 and the second pad separation bin 36 respectively, and the PCB board is output after the operation is completed.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic tapping and PIN removing machine, comprising a feeding unit (1), a processing unit (2) and a separating unit (3) connected in sequence, characterized in that, The feeding unit (1) is used to carry the stacked PCB board, aluminum sheet and pad assembly and transport it to the next process. The processing unit (2) includes a processing frame (21), a processing conveyor belt (22), a pin removal mechanism (23), a first laser cutting mechanism (26) and a second laser cutting mechanism (27). The processing conveyor belt (22) is installed on the processing frame (21), and the pin removal mechanism (23), the first laser cutting mechanism (26) and the second laser cutting mechanism (27) are arranged above the processing conveyor belt (22). The pin removal mechanism (23) is pneumatically driven to remove the pins in the assembly. The first laser cutting mechanism (26) and the second laser cutting mechanism (27) are used to cut the tape on the edge of the PCB board.

2. The automatic tapping de-PIN machine according to claim 1, characterized in that, The feeding unit (1) includes a feeding frame (11), a feeding conveyor belt (12) and a turning mechanism (13). The feeding conveyor belt (12) is installed on the feeding frame (11) and can transport the assembly to the processing conveyor belt (22). The turning mechanism (13) is located above the feeding conveyor belt (12).

3. The automatic tapping de-PIN machine according to claim 2, characterized in that, A central positioning mechanism (14) and a loading robot (15) are also installed above the loading conveyor belt (12).

4. The automatic tapping de-PIN machine according to claim 2, characterized in that, The side of the loading frame (11) is provided with a loading space, and a loading tray (16) is installed inside the loading space. The loading tray (16) is located on the side of the loading robot (15), and a loading trolley (17) can be pushed into the loading space. The loading tray (16) is located above the loading trolley (17).

5. The automatic tapping de-PIN machine according to claim 1, characterized in that, A first flipping mechanism (24) and a second flipping mechanism (25) are installed above the processing conveyor belt (22), and the first laser cutting mechanism (26) and the second laser cutting mechanism (27) are located on the sides of the first flipping mechanism (24) and the second flipping mechanism (25), respectively.

6. The automatic tapping de-PIN machine according to claim 1, characterized in that, The PIN removal mechanism (23) is equipped with a PIN removal left and right correction mechanism (28) below it, and the PIN removal left and right correction mechanism (28) is located above the processing conveyor belt (22).

7. The automatic tapping de-PIN machine according to claim 1, characterized in that, The separation unit (3) includes an aluminum sheet separation mechanism (31) and a pad separation mechanism (32) connected in sequence, and the aluminum sheet separation mechanism (31) is connected to the processing frame (21).

8. The automatic tapping de-PIN machine according to claim 7, characterized in that, An aluminum sheet separation hopper (34) is installed below the aluminum sheet separation mechanism (31), and a first pad separation hopper (35) and a second pad separation hopper (36) are installed below the pad separation mechanism (32).

9. The automatic tapping de-PIN machine according to claim 7, characterized in that, The transition conveyor (33) is installed inside the pad separation mechanism (32).

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