Flexible circuit board taking-out device
By adopting a parallel air circuit structure and a motor-driven turntable reset system in the flexible circuit board pick-up device, the problem of decreased adsorption force caused by seal ring failure was solved, and the stability and reliability of the suction cup working independently were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXING FASTPRINT ELECTRONICS CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-14
AI Technical Summary
When the sealing ring of the existing flexible circuit board picking device fails, the pressure balance in the negative pressure pipeline is disrupted, resulting in a sharp drop in adsorption force and affecting the stability of board picking.
The system employs a parallel air path structure consisting of a mounting shaft, air guide pipe, central chamber, and multiple independent connecting pipes. A motor drives a turntable to rotate, pulling the sealing ring to create negative pressure. A reset spring is used to release the negative pressure, ensuring that each suction cup works independently.
When the seal of one suction cup fails, the suction force of the other suction cups remains unaffected, significantly improving the stability and reliability of plate removal.
Smart Images

Figure CN224492837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of board picking equipment technology, specifically to a flexible circuit board picking device. Background Technology
[0002] According to the public announcement number CN218087814U, entitled "A Flexible Circuit Board Processing Picking Device", in the actual conversion process, the sealing ring set in the air guide pipe creates a main negative pressure pipe in the air guide pipe. If the sealing ring fails and leakage occurs, the pressure balance in the main negative pressure pipe is disrupted, resulting in a sharp drop in the overall adsorption force. Therefore, we propose a flexible circuit board picking device. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a flexible circuit board removal device to solve the problems existing in the prior art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A flexible circuit board picking device includes a mounting shaft, an air guide pipe, and a central chamber connected from top to bottom, and also includes multiple connecting pipes circumferentially connected to the central chamber. Each connecting pipe has a positioning pipe at its end, forming multiple independent parallel airflow channels, including:
[0006] The motor is located in the chamber where the shaft is mounted, and its output end extends through the air duct into the central chamber and is connected to a turntable.
[0007] The sealing ring is movably installed inside each connecting pipe, with a return spring connected to one side and a protrusion with a connecting wire hole on the other side;
[0008] When the motor drives the turntable to rotate, the sealing ring is pulled towards the central chamber by the rope to create negative pressure; when it reverses, the reset spring pulls the sealing ring to reset and release the negative pressure.
[0009] Preferably, the turntable is fixed to the motor output end and has a groove and a positioning pin in its circumference.
[0010] Preferably, the turntable has a radially arranged annular groove, and a turntable wire hole is formed between the annular groove and the groove, through which the rope passes.
[0011] Preferably, a suction cup is connected to the end of the positioning tube.
[0012] Preferably, one end of the reset spring is fixed to the sealing ring, and the other end is fixed to the inner wall of the positioning tube.
[0013] Preferably, the sealing ring has a reinforcing layer at both ends, the diameter of which is smaller than the diameter of the sealing ring body, and it fits tightly against the inner wall of the connecting pipe.
[0014] Preferably, the protrusion is located on the side of the sealing ring away from the return spring, and the connecting wire hole passes through the protrusion.
[0015] Preferably, the mounting shaft has an upper positioning hole at the top and a side positioning hole on the side.
[0016] This utility model provides a flexible circuit board picking device. It has the following advantages:
[0017] 1. A parallel air path structure is formed by mounting shaft, air guide pipe, central chamber and multiple independent connecting pipes. Each suction cup corresponds to an independent flow channel, ensuring that the suction force of other suction cups is not affected when the seal of a single suction cup fails, significantly improving the stability of plate removal. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This utility model Figure 1 Top view diagram;
[0020] Figure 3 This is a cross-sectional view of the present invention;
[0021] Figure 4 This is a schematic diagram of the internal structure of the mounting shaft of this utility model;
[0022] Figure 5 This is a schematic diagram of the sealing ring of this utility model.
[0023] In the diagram: 1. Mounting shaft; 11. Side positioning hole; 12. Upper positioning hole; 13. Chamber; 14. Motor; 15. Turntable; 16. Positioning pin; 17. Turntable wire hole; 2. Air guide tube; 3. Central chamber; 4. Connecting tube; 41. Positioning tube; 42. Suction cup; 5. Sealing ring; 51. Return spring; 52. Reinforcing layer; 53. Protrusion; 54. Connecting wire hole. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this utility model, not all of it. Based on this utility model, all other inventions obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] See attached document Figure 1-5A flexible circuit board picking device includes a mounting shaft picking plate 1, an air duct picking plate 2, and a central chamber picking plate 3 connected sequentially from top to bottom. The central chamber picking plate 3 is circumferentially provided with multiple connecting pipe picking plates 4 connected to it. The connecting pipe picking plates 4 extend away from the central chamber picking plate 3, and their extended ends are also connected to a positioning pipe picking plate 41. The positioning pipe picking plate 41 is also connected to a suction cup picking plate 42. The mounting shaft picking plate 1, the air duct picking plate 2, the central chamber picking plate 3, the connecting pipe picking plate 4, and the positioning pipe picking plate 41 are interconnected to form a gas path distribution structure with multiple independent flow channels.
[0026] A chamber plate 13 is formed axially inside the mounting shaft plate 1, communicating with the air duct plate 2. A motor plate 14 is also installed inside the chamber plate 13. The output end of the motor plate 14 extends through the air duct plate 2 into the central chamber plate 3. A turntable plate 15 is connected to the output end of the motor plate 14. The turntable plate 15 has a groove on its circumference corresponding to the connecting pipe plate 4, and a positioning pin plate 16 is installed inside. An annular groove is formed on the radial circumference of the turntable plate 15. (Not shown) The take-up plate, the annular groove is provided with a turntable wire hole take-up plate 17 that communicates with the groove. The rope passes through the turntable wire hole take-up plate 17 and is fixed with the positioning pin take-up plate 16 and placed in the groove. When the motor take-up plate 14 drives the turntable take-up plate 15 to rotate, the rope is wrapped around the annular groove and pulls the sealing ring take-up plate 5 towards the central chamber, so that a negative pressure is formed in the positioning tube take-up plate 41 to adsorb the circuit board. The reset spring take-up plate 51 stores energy during adsorption. When the motor reverses, the spring contracts and drives the sealing ring take-up plate 5 to reset, actively releasing the negative pressure and realizing the release of the circuit board.
[0027] A sealing ring plate 5 is axially movable inside the connecting pipe plate 4, forming a piston-like structure. A return spring plate 51 is connected to one side of the sealing ring plate 5, and is fixedly connected to the inner wall of the positioning pipe plate 41, thus creating a reset structure for the sealing ring plate 5. A connecting wire hole plate 54 is provided on the protruding plate 53 connected to the other side of the sealing ring plate 5. The connecting wire hole plate 54 can connect a rope and is connected to the positioning pin plate 16 on the motor plate 14. When the motor plate 14 drives the turntable plate... When the 15th pick-up plate rotates, the rope is wound around the axial groove of the turntable pick-up plate 15. The rope can pull the sealing ring pick-up plate 5 to slide along the axial direction of the connecting tube pick-up plate 4 towards the turntable pick-up plate 15. At this time, the return spring pick-up plate 51 is stretched and stored energy, forming a negative pressure at the pick-up section of the positioning tube pick-up plate 41, which adsorbs the circuit board on the suction cup pick-up plate 42. After the structure transports the circuit board to the designated position, when the motor pick-up plate 14 rotates in the reverse direction, the turntable pick-up plate 15 rotates in the reverse direction. The return spring pick-up plate 51 retracts and pulls the rope to restore the original position, placing the circuit board adsorbed on the suction cup pick-up plate 42 into the designated position.
[0028] The two ends of the sealing ring take-up plate 5 are connected by the reinforcing layer take-up plate 52 to improve the overall strength and resistance to deformation. The diameter of the reinforcing layer take-up plate 52 is smaller than that of the sealing ring take-up plate 5. The return spring take-up plate 51 and the protruding take-up plate 53 are installed on both sides of the reinforcing layer take-up plate 52. The diameter of the reinforcing layer take-up plate 52 is smaller than that of the sealing ring body to ensure a tight fit with the inner wall of the connecting pipe take-up plate 4. Long-term use is not prone to wear and leakage.
[0029] The top of the mounting shaft take-up plate 1 is provided with an upper positioning hole take-up plate 12, and the side of the mounting shaft take-up plate 1 is provided with a side positioning hole take-up plate 11 for positioning.
[0030] 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.
[0031] The above description is only used to illustrate the technical solutions of this utility model, and is not intended to limit it. Although the present utility model has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of this utility model.
Claims
1. A flexible circuit board picking device, comprising an installation shaft (1), an air guide pipe (2), and a central chamber (3) connected from top to bottom, and further comprising multiple connecting pipes (4) circumferentially connected to the central chamber (3), wherein each connecting pipe (4) is provided with a positioning pipe (41) at its end, forming multiple independent parallel air passages; Its features are: include: The motor (14) is located in the chamber (13) of the mounting shaft (1), and its output end extends through the air pipe (2) into the central chamber (3) and is connected to the turntable (15). The sealing ring (5) is movably installed in each connecting pipe (4), with a return spring (51) connected on one side and a protrusion (53) with a connecting wire hole (54) on the other side. When the motor (14) drives the turntable (15) to rotate, the sealing ring (5) is pulled by the rope to move towards the central chamber (3) to form negative pressure; when the reverse is reversed, the reset spring (51) pulls the sealing ring (5) to reset and release the negative pressure.
2. The flexible circuit board picking device as described in claim 1, characterized in that: The turntable (15) is fixed to the output end of the motor (14) and has a groove and a positioning pin (16) in its circumference.
3. The flexible circuit board picking device as described in claim 1, characterized in that: The turntable (15) is provided with an annular groove in the radial direction, and a turntable wire hole (17) is opened between the annular groove and the groove, through which the rope passes.
4. The flexible circuit board picking device as described in claim 1, characterized in that: The end of the positioning tube (41) is connected to a suction cup (42).
5. The flexible circuit board picking device as described in claim 1, characterized in that: One end of the reset spring (51) is fixed to the sealing ring (5), and the other end is fixed to the inner wall of the positioning tube (41).
6. The flexible circuit board picking device as described in claim 1, characterized in that: The sealing ring (5) has a reinforcing layer (52) at both ends. The diameter of the reinforcing layer (52) is smaller than the diameter of the sealing ring (5) body and it fits tightly against the inner wall of the connecting pipe (4).
7. The flexible circuit board picking device as described in claim 1, characterized in that: The protrusion (53) is located on the side of the sealing ring (5) away from the return spring (51), and the connecting wire hole (54) passes through the protrusion (53).
8. The flexible circuit board picking device as described in claim 1, characterized in that: The mounting shaft (1) has an upper positioning hole (12) at the top and a side positioning hole (11) on the side.