How is the structure of the suction nozzle rod for a surface mount technology (SMT) placement machine made?

The surface mount machine, also known as the "placement machine" or "surface mount system", is a device installed after the dispensing machine or screen printing machine in the production line. It accurately places surface mount components on the pcb pads by moving the placement head. When the existing surface mount technology (SMT) machines are in use, raw material residues, dust and other useless impurities will cause great interference to the SMT work of the circuit boards to be SMT, seriously affecting the yield of the products.

In view of the shortcomings of the existing technologies mentioned above, the purpose of the case in this paper is to provide a suction nozzle rod structure for a surface mount technology (SMT) machine, which is used to solve the problem that during the operation of the existing SMT machine, raw material residues, dust and other useless impurities will cause great interference to the SMT work of the circuit board to be SMT, seriously affecting the yield of the product.

To achieve the above-mentioned purposes and other related purposes, the case in this paper provides a surface mount technology (SMT) machine nozzle rod structure including: The suction nozzle rod, the suction nozzle rod seat and the dust removal mechanism, the suction nozzle rod is fixed on the suction nozzle rod seat, the dust removal mechanism is set on one side of the suction nozzle rod seat, the dust removal mechanism includes a sliding seat, the sliding seat is set on the surface of one side of the suction nozzle rod seat and can slide up and down freely, the sliding seat is provided with a blowing air pipe inside, the upper end face of the sliding seat is provided with an electromagnetic valve, and the blowing air pipe is connected below the electromagnetic valve A gas storage device is set on one side above the sliding seat, which is connected to the solenoid valve through a elbow pipe. The air blowing pipe is connected to the air blowing head through a flexible hose, and the position of the air blowing head corresponds to the position of the suction nozzle at the bottom of the suction nozzle rod. One side of the air blowing head is connected to the movable rod. A fixed rod is set at the bottom of the sliding seat, and the fixed rod is connected to the movable rod through a hinge mechanism. A cylinder is set below the surface on the side of the sliding seat away from the suction nozzle rod seat. The telescopic rod on the cylinder is connected to the movable rod through a connecting rod.

By adopting this technical solution: When the suction nozzle rod adsorbs the electronic component, the sliding seat slides down, causing the air blowing head to be on the same horizontal line as the suction nozzle below the suction nozzle rod. Then the cylinder extends, and the cylinder telescopic rod drives the movable rod to rotate around the hinge mechanism connected to the fixed rod through the connecting rod. The movable rod drives the air blowing head to move. Under the action of the hose, the air blowing head changes its Angle. The air holes on the air blowing head correspond to the electronic components adsorbed by the suction rod. Then, the solenoid valve opens, and the gas enters the air blowing head from the gas storage device through the air blowing pipe. The air blowing head blows air onto the surface of the electronic components to remove dust, impurities, etc. on the surface of the electronic components. Then, the cylinder and the sliding seat return to their original position. When the suction rod conveys the electronic components above the electronic board, the suction rod seat stops moving. The sliding seat slides down. The air blowing head, through the action of the cylinder, connecting rod and movable rod, is directly facing the position on the electronic board where the surface mount is to be placed. Then the solenoid valve opens, and the gas enters the air blowing head from the gas storage device through the air blowing pipe. The air blowing head blows air onto the surface of the electronic board to remove dust and impurities on the surface. After that, the cylinder and the sliding seat return to their original positions, and the suction nozzle rod mounts the electronic components onto the electronic board.

1. Suction nozzle rod
   The side surface where the suction nozzle rod seat is connected to the sliding seat is provided with a slide groove, and the side surface where the sliding seat is connected to the suction nozzle rod seat is provided with a slide rail, which cooperates with the slide groove.
2. By adopting this technical solution: the sliding seat and the suction nozzle rod seat are connected in coordination through a slide rail and a slide groove, enhancing the stability of the connection between the sliding seat and the suction nozzle rod seat, and facilitating the sliding seat to slide up and down on the surface of the suction nozzle rod seat.
3. The suction nozzle rod seat is connected to both sides of the sliding seat through a hydraulic telescopic cylinder.
4. By adopting this technical solution: controlling the sliding seat to slide on the surface of the suction nozzle rod seat through the elongation and contraction of the hydraulic telescopic cylinder, the accuracy of the sliding seat's movement is improved, making it easier to control.
5. An air inlet is provided in the middle of the upper end face of the gas storage device, and the gas storage device is connected to the high-pressure gas tank through the air inlet.
6. By adopting this technical solution: high-pressure gas first enters the gas storage device through the air inlet, and then enters the blowing pipe through the gas storage device, ensuring that the pressure in each blowing pipe is consistent and improving the dust removal quality of the dust removal mechanism.
7. There are multiple suction nozzle rods set on the suction nozzle rod seat, and the number of air blowing heads corresponds to the number of suction nozzle rods.
8. By adopting this technical solution: each suction nozzle on the suction nozzle rod corresponds to a blowing head, the efficiency and quality of dust removal are improved.
9. There are three cylinders set up, evenly distributed on the surface of the sliding seat.

As mentioned above, the suction nozzle rod structure of a surface mount technology (SMT) machine in the case of this article has the following beneficial effects:

In the case of this article, a dust removal mechanism is set on one side of the suction nozzle rod seat. By changing the Angle of the air blowing head, when the suction nozzle rod adsorbs the electronic components, air flow is blown onto the surface of the electronic components to remove the dust on their surface. When the electronic components are mounted, air flow is blown onto the surface of the electronic board to remove the dust on it. This ensures that there is no dust or impurities on the electronic components and the electronic board during the mounting process, effectively improving the quality of the electronic component mounting work. Moreover, the dust removal mechanism has a high dust removal efficiency, a simple device structure, and is easy to operate.

In summary, in the case of this article, a dust removal mechanism is set on one side of the suction nozzle rod seat. By changing the Angle of the air blowing head, when the suction nozzle rod adsorbs the electronic components, air is blown onto the surface of the electronic components to remove the dust on the surface of the electronic components. When the electronic components are mounted, air is blown onto the surface of the electronic board to remove the dust on the electronic board This ensures that there is no dust or impurities on the electronic components and the electronic board during the mounting process, effectively improving the quality of the electronic component mounting work. Moreover, the dust removal mechanism has a high dust removal efficiency, a simple device structure, and is easy to operate. Therefore, the case in this article effectively overcomes various shortcomings of the existing technology and has high industrial application value.