A coating valve with nozzle automatic adjustment function

Abstract

The utility model relates to pneumatic coating valve nozzle technical field, and disclose a kind of coating valve with nozzle automatic regulating function, including valve body, the bottom end outer wall of valve body is fixedly installed with flow channel stem, the one end fixedly installed connecting block of flow channel stem away from valve body, the bottom end of connecting block is detachably installed with nozzle, the bottom end outer wall of flow channel stem is threadedly connected with lock nut. By the cooperation of the flat mouth structure of connecting block top and the groove of flow channel stem bottom end adaptation, and the notch groove specially set for nozzle of connecting block bottom end, it is ensured that the circumferential relative position of nozzle is always fixed when it is assembled with connecting block, and connecting block is assembled with flow channel stem, so that nozzle can be automatically restored to preset initial angular position after being disassembled and maintained for several times without manual repeated calibration, fundamentally guarantee the consistency and repeatability of coating performance, greatly improve the convenience and production efficiency of user use.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology in pneumatic coating valves, specifically a coating valve with automatic nozzle adjustment function. Background Technology

[0002] Thin film coating valves are widely used in electronic circuit board protection (such as conformal coating), lithium battery electrode coating, semiconductor packaging and other fields. Their core function is to form a uniform thin film through non-atomized spraying, thereby improving coating accuracy and material utilization.

[0003] The explosive growth of the new energy industry and the upgrading of semiconductor and electronic packaging have led to the widespread application of thin-film coating valves. Among them, the nozzle is the most critical core component of the coating valve. The ease of installation and the uniqueness of the installation position are crucial for users and to ensure the consistency of coating performance. Existing structures cannot guarantee the consistency of nozzle installation position, and the nozzle position needs to be readjusted after installation to ensure that it is in the appropriate position. In view of this, we propose a coating valve with an automatic nozzle adjustment function. Utility Model Content

[0004] The purpose of this invention is to provide a coating valve with an automatic nozzle adjustment function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating valve with automatic nozzle adjustment function, comprising a valve body, a flow channel rod fixedly installed on the bottom outer wall of the valve body, a connecting block fixedly installed on the end of the flow channel rod away from the valve body, a nozzle detachably installed on the bottom end of the connecting block, a locking nut threadedly connected to the bottom outer wall of the flow channel rod, the bottom outer wall of the valve body fixedly installed on the upper surface of a mounting plate via a bearing, a driver fixedly installed on the upper surface of the mounting plate, a drive wheel fixedly installed through the output end of the driver through the mounting plate, a driven wheel being driven and connected to a driven wheel via a transmission belt, and the axis of the driven wheel penetrating and fixedly connected to the flow channel rod.

[0006] Preferably, the top end of the connecting block is configured as a flat opening structure, and the bottom end of the flow channel rod is provided with a groove adapted to the flat opening structure.

[0007] Preferably, the bottom end of the connecting block is provided with a notch groove of a size that matches the nozzle.

[0008] Preferably, the diameter of the internal cavity of the locking nut is larger than the nozzle orifice and smaller than the outer diameter of the connecting block.

[0009] Preferably, the flow channel rod and the mounting plate are arranged perpendicular to each other.

[0010] Preferably, the inner ring diameter of the bearing is adapted to the outer diameter of the flow channel rod, and the inner ring of the bearing is fixedly connected to the outer wall of the flow channel rod.

[0011] Preferably, the diameter ratio of the driving wheel to the driven wheel is 1:2.

[0012] Preferably, the bottom end of the valve body is provided with a guide rod, and the upper surface of the mounting plate is provided with an arc-shaped groove whose width is adapted to the outer diameter of the guide rod, and the bottom end of the guide rod slides in conjunction with the arc-shaped groove.

[0013] Compared with the prior art, this utility model provides a coating valve with automatic nozzle adjustment function, which has the following beneficial effects: 1. This coating valve with automatic nozzle adjustment function solves the problem of inconsistent nozzle installation position in existing technologies. Through the cooperation of the flat opening structure at the top of the connecting block and the groove at the bottom of the flow channel rod, as well as the notch groove specially designed for the nozzle at the bottom of the connecting block, it ensures that the circumferential relative position of the nozzle remains fixed when it is assembled with the connecting block and when the connecting block is assembled with the flow channel rod. This allows the nozzle to automatically return to the preset initial angle position after multiple disassembly and maintenance without repeated manual calibration, fundamentally guaranteeing the consistency and repeatability of coating performance, and greatly improving user convenience and production efficiency.

[0014] 2. This coating valve with automatic nozzle adjustment function drives the drive wheel through a driver, which in turn drives the driven wheel via a transmission belt. This precisely controls the synchronous rotation of the flow channel rod and nozzle, which are fixedly connected to the driven wheel. The drive wheel and driven wheel are designed with a specific diameter ratio, which reduces speed and increases torque, improving adjustment accuracy. At the same time, the bearing provides stable support for the rotation of the flow channel rod, while the guide rod at the bottom of the valve body slides with the arc groove on the mounting plate, guiding and limiting the rotation range. This allows the nozzle to automatically, smoothly, and precisely adjust its angle according to process requirements during operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a frontal view of the exploded diagram of this utility model; Figure 3 This is a schematic diagram showing the flow channel rod and nozzle separated in this utility model. Figure 4 This is a front view of the present utility model.

[0016] In the diagram: 1. Nozzle; 2. Connecting block; 3. Valve body; 4. Flow channel rod; 5. Locking nut; 6. Bearing; 7. Mounting plate; 8. Driven wheel; 9. Driver; 10. Drive wheel; 11. Drive belt. Detailed Implementation

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: a coating valve with automatic nozzle adjustment function, including a valve body 3, a flow channel rod 4 fixedly installed on the bottom outer wall of the valve body 3, a connecting block 2 fixedly installed on the end of the flow channel rod 4 away from the valve body 3, a nozzle 1 detachably installed on the bottom end of the connecting block 2, a locking nut 5 threadedly connected to the bottom outer wall of the flow channel rod 4, the bottom outer wall of the valve body 3 fixedly installed on the upper surface of the mounting plate 7 through a bearing 6, a driver 9 fixedly installed on the upper surface of the mounting plate 7, a drive wheel 10 fixedly installed through the output end of the driver 9 through the mounting plate 7, a driven wheel 8 driven by a transmission belt 11, and the shaft of the driven wheel 8 penetrating and fixedly connected to the flow channel rod 4.

[0018] The valve body 3 has a connector on its side for connecting to a pipe. The pipe connects to an external output pump, allowing the material to be sprayed to be continuously fed into the valve body 3 and finally sprayed out through the flow channel rod 4 and nozzle 1, thereby forming a uniform film on the product surface.

[0019] The top of the connecting block 2 is configured as a flat opening, and the bottom of the flow channel rod 4 is provided with a groove that matches the flat opening.

[0020] The flat-mouth structure provides guidance for the docking installation between the connecting block 2 and the flow channel rod 4, ensuring that even if the flow channel rod 4 is rotated, the connecting block 2 will still be installed in the corresponding position on the bottom end of the flow channel rod 4.

[0021] The bottom end of the connecting block 2 is provided with a notch groove that is adapted to the size of the nozzle 1.

[0022] The notch and groove design provides an installation track for the nozzle 1 and connecting block 2, ensuring that their relative positions are fixed during installation. Combined with the groove at the bottom of the flow channel rod 4 that fits the flat opening of the connecting block 2, the nozzle 1 and connecting block 2 remain in a fixed position when assembled at the bottom of the flow channel rod 4, preventing angular deviations on the axis of the flow channel rod 4 that could affect the control and limitation of the actual working range of the nozzle 1.

[0023] Furthermore, the internal cavity diameter of the locking nut 5 is larger than the nozzle orifice of the nozzle 1 and smaller than the outer diameter of the connecting block 2.

[0024] This ensures that the locking nut 5 does not affect the normal spraying of the nozzle 1, while also ensuring that the locking nut 5 can thread the nozzle 1 and the connecting block 2 to the bottom of the flow channel rod 4, facilitating installation and disassembly while avoiding interference with the assembly of the nozzle 1.

[0025] The flow channel rod 4 and the mounting plate 7 are set perpendicular to each other.

[0026] This allows the flow channel rod 4 to rotate normally under the drive of the driven wheel 8, while the valve body 3 is always on the axis of the flow channel rod 4. Therefore, the rotation of the valve body 3 and the flow channel rod 4 will not be eccentric, thus ensuring the relative stability of the nozzle 1 operation adjustment.

[0027] The inner ring diameter of bearing 6 is matched with the outer diameter of flow channel rod 4, and the inner ring of bearing 6 is fixedly connected to the outer wall of flow channel rod 4.

[0028] By setting bearing 6, the stability of flow channel rod 4 and valve body 3 when they rotate and adjust their positions on mounting plate 7 is ensured, and motion interference between flow channel rod 4 and mounting plate 7 is avoided, which would affect the normal use of the equipment.

[0029] The diameter ratio of the driving wheel 10 to the driven wheel 8 is 1:2.

[0030] The rotation angle of the flow channel rod 4 and the nozzle 1 is changed by controlling the rotation of the driven wheel 8 through the driving wheel 10 with a smaller diameter. Control can be achieved without large-angle rotation adjustment, thereby improving the accuracy of device adjustment.

[0031] A guide rod is provided at the bottom of the valve body 3, and an arc-shaped groove with a width that matches the outer diameter of the guide rod is opened on the upper surface of the mounting plate 7. The bottom end of the guide rod slides in conjunction with the arc-shaped groove.

[0032] By setting the guide rod and the arc groove, the valve body 3 can be supported and stabilized to a certain extent, and the rotation of the valve body 3 can be guided to avoid deviation and affect the installation stability of the flow channel rod 4.

[0033] In this invention, during use, the side of the valve body 3 is connected to an external delivery pump via a connector, continuously feeding the material to be sprayed into the valve body 3. The material is then conveyed through the flow channel rod 4 to the nozzle 1 at the bottom and sprayed out, forming a uniform film on the product surface. When it is necessary to adjust the spray angle of the nozzle 1, the driver 9 is activated, driving the drive wheel 10 to rotate. The drive wheel 10 drives the driven wheel 8 to rotate via the transmission belt 11. Since the driven wheel 8 is fixedly connected to the flow channel rod 4, the flow channel rod 4 rotates around its axis, thereby driving the connecting block 2 installed at the bottom of the flow channel rod 4 and the nozzle 1 to rotate synchronously, realizing the automatic adjustment of the nozzle 1 angle. The flat opening at the top of the connecting block 2 matches the groove at the bottom of the flow channel rod 4, ensuring that the installation position between the connecting block 2 and the flow channel rod 4 remains consistent and avoiding angular deviation. The nozzle 1 is positioned and installed through the notch groove at the bottom of the connecting block 2 and is fastened to the end of the flow channel rod 4 by the locking nut 5. The inner diameter design of the locking nut 5 does not affect the spraying of the nozzle 1 and can effectively press the connecting block 2. The bearing 6 supports the flow channel rod 4 and ensures its smooth rotation. The guide rod at the bottom of the valve body 3 slides with the arc groove on the mounting plate 7 to further guide and limit the rotation range of the valve body 3, ensuring the stability and accuracy of the adjustment process.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A coating valve with automatic nozzle adjustment function, comprising a valve body (3), characterized in that: A flow channel rod (4) is fixedly installed on the bottom outer wall of the valve body (3). A connecting block (2) is fixedly installed on the end of the flow channel rod (4) away from the valve body (3). A nozzle (1) is detachably installed on the bottom end of the connecting block (2). A locking nut (5) is threadedly connected to the bottom outer wall of the flow channel rod (4). The bottom outer wall of the valve body (3) is fixedly installed on the upper surface of the mounting plate (7) through a bearing (6). A driver (9) is fixedly installed on the upper surface of the mounting plate (7). A drive wheel (10) is fixedly installed through the mounting plate (7) at the output end of the driver (9). A driven wheel (8) is driven by a transmission belt (11). The axis of the driven wheel (8) is connected to the flow channel rod (4) through and fixedly connected.

2. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: The top of the connecting block (2) is configured as a flat opening structure, and the bottom of the flow channel rod (4) is provided with a groove that is adapted to the flat opening structure.

3. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: The bottom end of the connecting block (2) is provided with a notch groove of a size that matches the nozzle (1).

4. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: Furthermore, the internal cavity diameter of the locking nut (5) is greater than the nozzle (1) orifice and smaller than the outer diameter of the connecting block (2).

5. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: The flow channel rod (4) and the mounting plate (7) are arranged perpendicular to each other.

6. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: The inner ring diameter of the bearing (6) is adapted to the outer diameter of the flow channel rod (4), and the inner ring of the bearing (6) is fixedly connected to the outer wall of the flow channel rod (4).

7. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: The diameter ratio of the driving wheel (10) to the driven wheel (8) is 1:

2.

8. A coating valve with automatic nozzle adjustment function according to claim 1, characterized in that: The bottom end of the valve body (3) is provided with a guide rod, and the upper surface of the mounting plate (7) is provided with an arc groove whose width is adapted to the outer diameter of the guide rod. The bottom end of the guide rod slides in conjunction with the arc groove.

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