Suction plate device

Abstract

The utility model discloses a suction plate device which comprises an air box, a base plate and a suction nozzle assembly, the air box is connected with a vacuum generator through an air extraction piece, and a plurality of airflow channels are arranged on the air box; the chassis is fixedly or detachably connected with the bottom of the air box through a connecting bracket; the suction nozzle assembly and the base plate are magnetically attracted. The suction nozzle assembly comprises a suction nozzle body and a suction nozzle connector. A cavity is formed in the suction nozzle body and is communicated with the airflow channel; the suction nozzle joint is arranged at the bottom of the suction nozzle body, and the suction nozzle joint is communicated with the cavity; the suction nozzle body is sleeved with an elastic piece. Through the magnetic connection of the suction nozzle assembly and the magnetic chassis, the positions of the suction nozzles can be flexibly adjusted, the suction nozzles can be quickly assembled and disassembled without tools, the positions and the number of the suction nozzles can be freely adjusted according to the size of a PCB and the distribution of suction points, self-adaptive adaptation of plates of multiple models is realized, the tedious operation of replacing the whole device is avoided, and the production efficiency is improved. And the universality and the production efficiency of the equipment are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB production equipment technology, specifically a suction plate device. Background Technology

[0002] The existing automatic PCB placement machine's suction device mainly consists of a chassis and multiple suction nozzle assemblies, which are fixed at intervals on the bottom of the chassis. During operation, the suction nozzle assemblies use negative pressure to create suction, picking up the PCB board and then moving it to a designated position under the action of a drive device. However, this suction device has certain limitations. Because the position and number of suction nozzle assemblies are fixed on the chassis, it cannot meet the suction requirements when handling PCB boards of different sizes, shapes, and suction point distributions. For example, smaller PCB boards may not be picked up by all the nozzles, while larger PCB boards may not be effectively fixed due to insufficient nozzle spacing, leading to placement deviations and affecting production efficiency and product quality. Therefore, the existing suction nozzle assemblies cannot be adapted to different PCB board sizes, requiring the replacement of the entire suction device. Each replacement involves tedious operations such as disassembling screws and inserting / removing air hoses, as well as reinstallation, debugging, and calibration, consuming significant manpower and time costs. Furthermore, frequent replacement of equipment parts will accelerate mechanical wear, increase equipment maintenance costs, seriously affect the working efficiency and production continuity of PCB automatic board placement machines, greatly reduce production efficiency, and make it difficult to meet the production needs of multi-variety, small-batch production in modern electronic product manufacturing. Utility Model Content

[0003] To solve the above problems, this utility model provides a suction plate device, comprising:

[0004] The air box is connected to the vacuum generator via an air extraction component, and the air box is equipped with multiple airflow channels.

[0005] The chassis is either fixedly or detachably connected to the bottom of the air box via a connecting bracket.

[0006] The suction nozzle assembly magnetically attracts the chassis. The suction nozzle assembly includes a suction nozzle body and a suction nozzle connector. The suction nozzle body has a cavity that communicates with the airflow channel. The suction nozzle connector is located at the bottom of the suction nozzle body and communicates with the cavity. An elastic element is fitted on the suction nozzle body.

[0007] Preferably, the chassis is made of magnetic material and the nozzle body is made of ferromagnetic material.

[0008] Preferably, the chassis is made of natural magnetite or magnet.

[0009] Preferably, the nozzle body is made of any one of steel, cast iron, or nickel-iron alloy.

[0010] Preferably, the chassis is made of ferromagnetic material and the nozzle body is made of magnetic material.

[0011] Preferably, the chassis is made of any one of steel, cast iron, or nickel-iron alloy.

[0012] Preferably, the nozzle body is made of magnet.

[0013] Preferably, the nozzle is made of silicone material.

[0014] Preferably, the nozzle is made of rubber material.

[0015] Preferably, the elastic element is a compression spring.

[0016] The beneficial effects are as follows: This application uses the magnetic connection between the suction nozzle assembly and the magnetic chassis to flexibly adjust the position of the suction nozzle, allowing for quick assembly and disassembly without tools. The position and number of suction nozzles can be freely adjusted according to the PCB board size and suction point distribution, achieving adaptive compatibility with multiple board models. This avoids the cumbersome operation of replacing the entire device, greatly improving the equipment's versatility and production efficiency. Furthermore, vulnerable parts such as suction nozzles and elastic components can be replaced independently, significantly reducing maintenance time and costs, while also lowering the equipment failure rate and enhancing the equipment's continuous operation capability. This effectively meets the needs of modern electronic manufacturing for multi-variety, small-batch production, significantly enhancing the flexibility, reliability, and economy of the automatic board feeding machine. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the exploded structure of this application;

[0019] In the picture:

[0020] 1. Air box; 11. Air extraction component; 12. Airflow channel;

[0021] 2. Connecting bracket;

[0022] 3. Chassis;

[0023] 4. Suction nozzle assembly; 41. Suction nozzle body; 411. Elastic element; 412. Rotary limiting nut; 42. Suction nozzle connector. Detailed Implementation

[0024] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0025] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Example

[0028] Please see Figure 1 , Figure 1 This is a schematic diagram of the exploded structure of this application. This embodiment provides a suction plate device, including an air box 1, a connecting bracket 2, a chassis 3, and a suction nozzle assembly 4. The air box 1 is connected to a vacuum generator via an air extraction component 11. The air box 1 is provided with multiple airflow channels 12, each equipped with an independent solenoid valve or pneumatic valve. The vacuum on / off state of a single suction nozzle can be remotely adjusted by a control system. The chassis 3 is fixedly connected to the bottom of the air box 1 via the connecting bracket 2, for example, by welding. Alternatively, it can be detachably connected, for example, by screwing the connecting bracket 2 to the bottom of the air box 1. The suction nozzle assembly 4 is magnetically attracted to the chassis 3.

[0029] The nozzle assembly 4 includes a nozzle body 41 and a nozzle connector 42. The surface of the nozzle body 41 is coated with a nano-level oleophobic and hydrophobic coating to reduce the adhesion of dust particles. The nozzle body 41 has a cavity inside, which is connected to the airflow channel 12. Thus, the air box 1 integrates an independent airflow channel 12. The failure of a single nozzle assembly 4 does not affect the operation of other nozzle assemblies 4, and the on / off state of a single airflow channel 12 can be precisely controlled to avoid the PCB board component area. The suction nozzle connector 42 is located at the bottom of the suction nozzle body 41 and communicates with the cavity. A removable dust filter is installed inside the suction nozzle connector 42 to prevent solder slag and flux residue from clogging the air passage. The suction nozzle connector 42 is made of silicone or rubber to improve its flexibility and wear resistance, extending its service life. An elastic element 411 and a rotating limiting nut 412 are fitted onto the suction nozzle body 41. The initial compression of the elastic element 411 is changed by rotating the limiting nut 412. The elastic element 411 can be a compression spring, which provides cushioning for the suction nozzle connector 42. The compression spring fitted onto the suction nozzle body 41, combined with the silicone / rubber flexible suction nozzle, can adaptively compensate for slight warping or unevenness of the PCB board surface, reducing scratches caused by rigid contact, enhancing adsorption stability, and reducing the risk of detachment during high-speed movement.

[0030] In this embodiment, the chassis 3 is made of a magnetic material, such as natural magnets or magnets. The suction nozzle body 41 is made of a ferromagnetic material, such as steel, cast iron, or nickel-iron alloy. Thus, the suction nozzle body 41 can magnetically attract the chassis 3. In another embodiment of this application, the chassis 3 is made of a ferromagnetic material, such as steel, cast iron, or nickel-iron alloy, and the suction nozzle body 41 is made of a magnetic material, such as a magnet. Thus, the suction nozzle body 41 can also magnetically attract the chassis 3. To further improve the layout accuracy of the suction nozzle assembly 4 and achieve precise alignment between the suction nozzle body 41 and the chassis 3, a grid-like positioning groove can be provided at the bottom of the chassis 3, and a corresponding positioning boss can be provided at the top of the suction nozzle body 41. No additional calibration tools are required; manual arrangement of the suction nozzle assembly can meet the high-precision positioning requirements.

[0031] In summary, this application utilizes the magnetic connection between the nozzle assembly 4 and the magnetic chassis 3 to flexibly adjust the nozzle position. It allows for quick assembly and disassembly without tools, and the nozzle position and quantity can be freely adjusted according to the PCB board size and suction point distribution, achieving adaptive compatibility with multiple board types. This avoids the cumbersome operation of replacing the entire device, greatly improving the equipment's versatility and production efficiency. Furthermore, easily damaged parts such as the nozzle connector 42 and elastic parts 411 can be replaced independently, significantly reducing maintenance time and costs, lowering equipment failure rates, and enhancing continuous operation capabilities. This effectively meets the needs of modern electronic manufacturing for multi-variety, small-batch production, significantly enhancing the flexibility, reliability, and economy of the automatic board feeding machine.

[0032] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A suction plate device, characterized in that, include: The air box is connected to the vacuum generator via an air extraction component, and the air box is provided with multiple airflow channels. The chassis is either fixedly or detachably connected to the bottom of the air box via a connecting bracket. The suction nozzle assembly magnetically attracts the chassis. The suction nozzle assembly includes a suction nozzle body and a suction nozzle connector. The suction nozzle body has a cavity that communicates with the airflow channel. The suction nozzle connector is located at the bottom of the suction nozzle body and communicates with the cavity. An elastic element is fitted on the suction nozzle body.

2. The suction plate device according to claim 1, characterized in that, The chassis is made of magnetic material, and the nozzle body is made of ferromagnetic material.

3. The suction plate device according to claim 2, characterized in that, The chassis is made of natural magnetite or a magnet.

4. The suction plate device according to claim 2, characterized in that, The nozzle body is made of any one of the following materials: steel, cast iron, or nickel-iron alloy.

5. The suction plate device according to claim 1, characterized in that, The chassis is made of ferromagnetic material, and the nozzle body is made of magnetic material.

6. The suction plate device according to claim 5, characterized in that, The chassis is made of any one of the following materials: steel, cast iron, or nickel-iron alloy.

7. The suction plate device according to claim 5, characterized in that, The nozzle body is made of magnets.

8. The suction plate device according to claim 1, characterized in that, The suction nozzle is made of silicone material.

9. The suction plate device according to claim 1, characterized in that, The suction nozzle is made of rubber.

10. The suction plate device according to claim 1, characterized in that, The elastic element is a compression spring.

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