Automatic cleaning structure for suction nozzle of FPC (Flexible Printed Circuit) chip mounter

Abstract

The utility model discloses an automatic cleaning structure for a suction nozzle of an FPC (Flexible Printed Circuit) chip mounter. The automatic cleaning structure comprises a cleaning box and a high-pressure air pump, a shaft rod is transversely and rotatably installed in the cleaning box, the shaft rod serves as a core rotating part of the whole cleaning structure and provides a foundation for all-directional cleaning of the suction nozzle, cross-shaped supports are fixedly installed on the two sides of the shaft rod in a sleeving mode, and installation plates are fixedly installed on the peripheries of the cross-shaped supports; and a plurality of sets of suction nozzle sockets are fixedly installed on the outer walls of all the sets of installation plates, the suction nozzle sockets provide stable installation positions for suction nozzles, it is ensured that the suction nozzles cannot loosen or fall in the cleaning process, a servo motor is fixedly installed on the side wall of the cleaning box, and an output shaft of the servo motor is in transmission connection with a shaft rod. According to the utility model, the chip mounter suction nozzle can be efficiently and automatically cleaned and air-dried, the cleaning efficiency is greatly improved under the condition that the cleanliness of the suction nozzle is ensured, and a cleaner of the suction nozzle is more convenient and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning nozzles of chip placement machines, in particular to an automatic cleaning structure for the nozzles of FPC flexible circuit board chip placement machines. Background Art

[0002] In the production process of flexible printed circuit boards (FPCs), placement machines play a vital role. They use a nozzle to pick up electronic components and accurately place them on the flexible printed circuit board. However, over time, various contaminants such as dust, solder paste, and flux accumulate on the nozzle. This contaminant not only affects the nozzle's adsorption performance, resulting in reduced placement accuracy, but can also contaminate electronic components, impacting product quality.

[0003] At present, there are mainly the following common methods for cleaning nozzles: one is manual cleaning, that is, the operator uses cotton swabs, alcohol and other tools to wipe the nozzle. This method is not only inefficient, but also difficult to ensure the cleaning effect, and it is easy to cause incomplete cleaning or damage to the nozzle. The second is to use simple cleaning equipment, such as ultrasonic cleaning machines, but these devices can usually only perform a single cleaning method and cannot meet the comprehensive cleaning needs of the nozzle. Manual wiping is still required after cleaning.

[0004] Therefore, how to provide an automatic cleaning structure for the suction nozzle of an FPC flexible circuit board placement machine is a problem that those skilled in the art urgently need to solve. Utility Model Content

[0005] One purpose of the utility model is to propose an automatic cleaning structure for the suction nozzle of an FPC flexible circuit board placement machine. The utility model can efficiently and automatically clean and air-dry the suction nozzle of the placement machine, greatly improving the cleaning efficiency while ensuring the cleanliness of the suction nozzle, and making the cleaning of the suction nozzle more convenient and labor-saving.

[0006] According to an embodiment of the utility model, an automatic cleaning structure for a nozzle of an FPC flexible circuit board placement machine includes a cleaning box and a high-pressure air pump;

[0007] The interior of the cleaning box is laterally rotatably installed with a shaft rod, which serves as the core rotating component of the entire cleaning structure and provides a basis for all-round cleaning of the suction nozzle. Cross brackets are fixedly installed on both sides of the shaft rod, and mounting plates are fixedly installed around the cross brackets. Several groups of nozzle sockets are fixedly installed on the outer walls of each group of mounting plates. The nozzle sockets provide a stable installation position for the nozzle, ensuring that the nozzle will not loosen or fall off during the cleaning process. A servo motor is fixedly installed on the side wall of the cleaning box, and the output shaft of the servo motor is transmission-connected to the shaft rod. The servo motor serves as a power source and can control the shaft The rod rotates, and a vibrator bin is provided at the bottom of the cleaning box. Several groups of ultrasonic vibrators are provided at the bottom of the cleaning box and located in the vibrator bin. The vibrator bin provides installation space for the ultrasonic vibrators and also plays a role of protection and isolation. The ultrasonic vibrators can generate high-frequency vibrations, which are transmitted to the cleaning liquid in the cleaning box through conduction at the bottom of the cleaning box, causing the cleaning liquid to generate tiny bubbles and water flow, thereby deeply cleaning the suction nozzle. Support legs are provided at the bottom of the cleaning box, which provide stable support for the cleaning box to ensure that the cleaning structure does not shake or tilt during operation;

[0008] The high-pressure air pump is fixedly installed on the front wall of the cleaning box. The high-pressure air pump provides high-pressure gas for the cleaning structure to dry the suction nozzle. An air supply branch pipe is installed at the top output end of the high-pressure air pump. A baffle is fixedly installed above the inner wall of the cleaning box. The baffle plays a role of isolation and protection to prevent the cleaning liquid from splashing. Several groups of blowing nozzles are vertically inserted into the baffle. The air supply branch pipe runs through the outer wall of the cleaning box and is interconnected with each group of blowing nozzles, so that the high-pressure gas can be smoothly delivered to the blowing nozzle.

[0009] Furthermore, the number of the blowing nozzles is consistent with the number of the nozzle sockets on each group of mounting plates, and each group of the blowing nozzles corresponds to each group of nozzle sockets, ensuring that each nozzle can be fully blown.

[0010] Furthermore, an inspection plate is detachably mounted on one side of the vibrator compartment, and the inspection plate is fixed to the side of the vibrator compartment by bolts, so as to facilitate inspection and maintenance of the ultrasonic vibrator.

[0011] Furthermore, there are four groups of legs, and each group of legs is vertically installed at the four corners of the bottom of the cleaning box. This distribution method makes the force on the cleaning box more uniform and the stability higher. The bottom of each group of legs is fixedly installed with a rubber pad for buffering and shock absorption. The rubber pad can effectively absorb the vibration and impact force generated by the cleaning structure during operation, reducing the impact on the surrounding environment.

[0012] Furthermore, the front wall of the cleaning box is fixedly mounted on the support frame at the bottom of the high-pressure air pump, and the high-pressure air pump is supported and mounted on the front wall of the cleaning box by the support frame, ensuring that the high-pressure air pump is firmly and reliably installed.

[0013] Furthermore, doors are symmetrically installed on both sides of the top of the cleaning box through hinges, and the two groups of doors are opened and closed by hinges. Handle holes are opened on one side of the two groups of doors close to each other to facilitate operators to open and close the doors and install and remove the suction nozzles.

[0014] Furthermore, a drain outlet is provided at the lower part of the other side of the cleaning box, the drain outlet is communicated with the interior of the cleaning box, and a manual valve is provided on the drain outlet to facilitate the discharge of the cleaning liquid in the cleaning box.

[0015] Furthermore, a quick interface for installing the suction nozzle is provided in the suction nozzle socket, making the installation and removal of the suction nozzle more convenient and quick.

[0016] The beneficial effects of the utility model are:

[0017] The utility model can install multiple groups of suction nozzles through the suction nozzle socket, and then the servo motor drives the shaft to drive each group of mounting plates to rotate in the cleaning box, so that the suction nozzles on each group of mounting plates can be rotated to the bottom of the cleaning box in turn, and then the high-frequency vibration generated by the ultrasonic vibrator is used to deeply clean the suction nozzles. After cleaning, the servo motor continues to drive the shaft to rotate, so that the cleaned suction nozzles on each mounting plate can be rotated to the bottom of the blowing nozzle in turn, and then the suction nozzles are blown dry by the high-pressure air pump and the blowing nozzle. The dried suction nozzles can continue to rotate upward with the servo motor and are convenient to take out, thereby realizing automatic cleaning of the suction nozzles and improving cleaning efficiency and cleaning effect.

[0018] The nozzle can be quickly installed and removed from the nozzle socket through a quick interface, making it easy to install and remove the nozzle before cleaning and after cleaning, thereby improving cleaning efficiency.

[0019] The installation of baffles and doors can effectively prevent the cleaning liquid from splashing out, avoid environmental pollution, and greatly improve the protection effect during cleaning work;

[0020] Finally, the rubber pads at the bottom of the legs can have a shock-absorbing and buffering effect, which can buffer the vibration of the ultrasonic vibrator during operation, preventing the vibration from being directly transmitted to the ground through the legs and causing excessive noise. It can also increase friction, making the device more stable when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1This is a front view structural diagram of an automatic cleaning structure of a suction nozzle of an FPC flexible circuit board placement machine proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the rear view inspection panel disassembly structure of an FPC flexible circuit board placement machine suction nozzle automatic cleaning structure proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the unfolded structure of the suction nozzle of an FPC flexible circuit board placement machine proposed in the utility model, looking down at the box door;

[0025] Figure 4 This is a schematic diagram of the enlarged structure of the A part of the automatic cleaning structure of the suction nozzle of the FPC flexible circuit board placement machine proposed by the present invention.

[0026] In the figure: 1. Cleaning box; 2. Vibrator compartment; 3. Support frame; 4. High-pressure air pump; 5. Box door; 6. Hinge; 7. Handle hole; 8. Gas branch pipe; 9. Support leg; 10. Drain outlet; 11. Inspection panel; 12. Ultrasonic vibrator; 13. Rubber pad; 14. Servo motor; 15. Shaft; 16. Cross bracket; 17. Mounting plate; 18. Suction nozzle socket; 19. Quick connector; 20. Baffle; 21. Blowing nozzle. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0028] refer to Figure 1 、 Figure 3 and Figure 4 , an FPC flexible circuit board placement machine nozzle automatic cleaning structure, including a cleaning box 1 and a high-pressure air pump 4;

[0029] A shaft 15 is rotatably installed inside the cleaning box 1, and cross brackets 16 are fixedly installed on both sides of the shaft 15. Mounting plates 17 are fixedly installed around the cross brackets 16, and a plurality of nozzle sockets 18 are fixedly installed on the outer wall of each group of mounting plates 17. A servo motor 14 is fixedly installed on the side wall of the cleaning box 1, and the output shaft of the servo motor 14 is transmission-connected to the shaft 15.

[0030] Furthermore, a quick interface 19 for installing the nozzle is provided in the nozzle socket 18;

[0031] Secondly, the bottom of the cleaning box 1 is provided with supporting legs 9. There are four groups of supporting legs 9, and each group of supporting legs 9 is vertically installed at the four corners of the bottom surface of the cleaning box 1. The bottom of each group of supporting legs 9 is fixed with a rubber pad 13 for buffering and shock absorption.

[0032] In addition, both sides of the top of the cleaning box 1 are symmetrically installed with box doors 5 through hinges 6, and the two sets of box doors 5 are opened and closed by hinges 6. A handle hole 7 is opened through the side of the two sets of box doors 5 close to each other;

[0033] In this embodiment, the box door 5 is opened, and the suction nozzle to be cleaned is installed at the quick interface 19 on the suction nozzle socket 18. After closing the box door 5, the servo motor 14 can be started to drive the shaft 15 to rotate. At this time, each group of mounting plates 17 and each group of suction nozzle sockets 18 can be driven to rotate and change positions in the cleaning box, and the support legs 9 and rubber pads 13 provide stable support and buffering and shock absorption for the cleaning box 1, reducing vibration and noise during the cleaning process.

[0034] refer to Figure 1-2 A vibrator bin 2 is provided at the bottom of the cleaning box 1, and a plurality of groups of ultrasonic vibrators 12 are provided at the bottom of the cleaning box 1 and located inside the vibrator bin 2;

[0035] Among them, the front wall of the cleaning box 1 and the bottom of the high-pressure air pump 4 are fixedly installed on the support frame 3, and the high-pressure air pump 4 is supported and installed on the front wall of the cleaning box 1 through the support frame 3. The support frame 3 provides stable support for the high-pressure air pump 4;

[0036] Secondly, an access panel 11 is detachably mounted on one side of the vibrator bin 2. The access panel 11 is fixed to the side of the vibrator bin 2 by bolts. When the ultrasonic vibrator 12 needs to be inspected and maintained, the access panel 11 can be removed.

[0037] In addition, a drain port 10 is provided at the bottom of the other side of the cleaning box 1. The drain port 10 is connected to the interior of the cleaning box 1. A manual valve is provided on the drain port 10. After cleaning is completed, the manual valve on the drain port 10 is opened to discharge the cleaning liquid out of the cleaning box 1.

[0038] In this embodiment, the ultrasonic vibrator 12 is started, and the ultrasonic vibrator 12 generates high-frequency vibration, which is transmitted to the cleaning liquid in the cleaning box 1 through conduction at the bottom of the cleaning box 1, causing the cleaning liquid to generate tiny bubbles and water flow, thereby deeply cleaning the suction nozzle.

[0039] refer to Figure 1 and Figure 3 , the high-pressure air pump 4 is fixedly installed on the front wall of the cleaning box 1, and an air delivery branch pipe 8 is installed at the top output end of the high-pressure air pump 4. A baffle 20 is fixedly installed above the inner wall of the cleaning box 1, and a plurality of groups of blowing nozzles 21 are vertically inserted into the baffle 20. The air delivery branch pipe 8 passes through the outer wall of the cleaning box 1 and is interconnected with each group of blowing nozzles 21;

[0040] The number of the blowing nozzles 21 is consistent with the number of the suction nozzle sockets 18 on each group of mounting plates 17, and each group of blowing nozzles 21 corresponds to each group of suction nozzle sockets 18.

[0041] In this embodiment, after cleaning is completed, the high-pressure air pump 4 is started, and the high-pressure air pump 4 delivers high-pressure gas to the blowing nozzle 21 through the gas branch pipe 8. The blowing nozzle 21 dries the rotating suction nozzle. The number of the blowing nozzles 21 is consistent with the number of the suction nozzle sockets 18 and corresponds to each other, ensuring that each suction nozzle can be fully dried.

[0042] Working principle: install the suction nozzle that needs to be cleaned on the suction nozzle socket 18 in the cleaning box 1, close the box door 5, inject an appropriate amount of cleaning liquid into the cleaning box 1, start the servo motor 14 and the ultrasonic vibrator 12, and the servo motor 14 drives the shaft 15 to rotate so that the suction nozzle rotates to the bottom of the cleaning box 1. The ultrasonic vibrator 12 generates high-frequency vibration to deeply clean the suction nozzle. After cleaning is completed, the servo motor 14 is started again. At this time, the cleaned suction nozzle can be rotated to the bottom of each group of blowing nozzles 21, and then the high-pressure air pump 4 is started. The high-pressure air pump 4 delivers high-pressure gas to the blowing nozzle 21 through the gas supply branch pipe 8, and the blowing nozzle 21 blows the rotating suction nozzle dry. After drying, the servo motor 14 starts again to drive the shaft 15 to rotate so that the dried suction nozzle can rotate to the top. Finally, open the box door 5 to take out the cleaned suction nozzle. When the cleaning liquid needs to be replaced, the manual valve on the drain outlet 10 can be opened to discharge the cleaning liquid.

[0043] It is understood that the servo motor 14 and high-pressure air pump 4 of the present invention can be driven by an external power cord. The servo motor 14 and high-pressure air pump 4 can be programmed and controlled by a main control system, and their control principles are achievable using existing control technology. The models of the servo motor 14 and high-pressure air pump 4 are not limited to a single type and can be any commercially available type suitable for the present invention.

[0044] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine, characterized in that: It comprises a cleaning box (1) and a high-pressure air pump (4); A shaft (15) is rotatably installed inside the cleaning box (1), and cross brackets (16) are fixedly installed on both sides of the shaft (15). Mounting plates (17) are fixedly installed around the cross brackets (16), and a plurality of groups of nozzle sockets (18) are fixedly installed on the outer wall of each group of mounting plates (17). A servo motor (14) is fixedly installed on the side wall of the cleaning box (1), and the output shaft of the servo motor (14) is transmission-connected to the shaft (15). A vibrator bin (2) is provided at the bottom of the cleaning box (1), and a plurality of groups of ultrasonic vibrators (12) are provided at the bottom of the cleaning box (1) and located in the vibrator bin (2). Support legs (9) are provided at the bottom of the cleaning box (1); The high-pressure air pump (4) is fixedly mounted on the front wall of the cleaning box (1); an air delivery branch pipe (8) is mounted on the top output end of the high-pressure air pump (4); a baffle (20) is fixedly mounted above the inner wall of the cleaning box (1); a plurality of groups of blowing nozzles (21) are vertically inserted into the baffle (20); and the air delivery branch pipe (8) passes through the outer wall of the cleaning box (1) and is in communication with each group of blowing nozzles (21).

2. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1 is characterized in that: The number of the blowing nozzles (21) is consistent with the number of the suction nozzle sockets (18) on each group of mounting plates (17), and each group of the blowing nozzles (21) corresponds to each group of the suction nozzle sockets (18).

3. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1 is characterized in that: An inspection plate (11) is detachably mounted on one side of the vibrator bin (2), and the inspection plate (11) is fixedly mounted on one side of the vibrator bin (2) by means of bolts.

4. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1 is characterized in that: The number of the supporting legs (9) is four groups, and each group of supporting legs (9) is vertically installed at the four corners of the bottom surface of the cleaning box (1), and a rubber pad (13) for buffering and shock absorption is fixedly installed at the bottom of each group of supporting legs (9).

5. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1 is characterized in that: The front wall of the cleaning box (1) is fixedly mounted on the support frame (3) and located at the bottom of the high-pressure air pump (4); the high-pressure air pump (4) is supported and mounted on the front wall of the cleaning box (1) via the support frame (3).

6. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1, characterized in that: Box doors (5) are symmetrically installed on both sides of the top of the cleaning box (1) through hinges (6), and the two groups of box doors (5) are opened and closed through the hinges (6). Handle holes (7) are opened through the sides of the two groups of box doors (5) close to each other.

7. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1, characterized in that: A drain outlet (10) is provided below the other side of the cleaning box (1), the drain outlet (10) and the interior of the cleaning box (1) are interconnected, and a manual valve is provided on the drain outlet (10).

8. The automatic cleaning structure for the nozzle of an FPC flexible circuit board placement machine according to claim 1, characterized in that: A quick interface (19) for installing the suction nozzle is provided in the suction nozzle socket (18).

Images