Flow control structure for a multi-channel precision coating device

Abstract

This utility model discloses a flow control structure for a multi-channel precision coating device, including a metering pump, a base plate, a first inlet pipe, a second inlet pipe, a first outlet pipe, and a second outlet pipe. It also includes: a first damping mechanism disposed on the bottom outer wall of the base plate; and a second damping mechanism disposed on the circumferential outer walls of the second inlet pipe and the second outlet pipe. Support components are provided on the circumferential outer walls of the second inlet pipe and the second outlet pipe. One end of the first inlet pipe and one end of the first outlet pipe are each connected to a rubber flexible joint via a flange. The flow control structure of this multi-channel precision coating device effectively reduces the vibration transmission amplitude of the metering pump, thereby minimizing the impact of vibration on coating quality.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a flow control structure for a multi-channel precision coating device. Background Technology

[0002] Multi-channel precision coating equipment typically uses a metering pump as the core structure for flow control. Its key lies in achieving precise flow output using the metering pump. This structure includes multiple independent fluid channels, each equipped with a metering pump, flow regulating valve, and high-precision sensor. The metering pump, as the core component, can precisely control the fluid delivery, ensuring that the flow rate in each channel is both stable and adjustable. Through a central control system, key parameters such as the metering pump's speed and stroke can be monitored and adjusted in real time. Combined with the fine-tuning function of the flow regulating valve, a high degree of consistency in the coating amount across channels is achieved. The sensor continuously feeds back flow data, forming a closed-loop control system that effectively improves coating accuracy and quality, meeting the needs of multi-channel precision coating.

[0003] However, in the flow control structure of traditional multi-channel precision coating devices, the metering pump is usually directly and rigidly connected to the frame. The vibration generated during its operation is transmitted to the entire frame system without any buffering and is conducted to the coating head module through the pipeline, affecting the coating quality.

[0004] For example, vibration-induced fluid pulsation in pipelines can lead to unstable coating liquid supply, resulting in stripes or uneven thickness on the coating surface. Vibration coupling-induced coating head shaking can disrupt the continuity of liquid film spreading, causing edge effects or micropore defects, which seriously affect product yield and performance consistency, making it difficult to meet the needs of high-end manufacturing. Utility Model Content

[0005] This utility model discloses a flow control structure for a multi-channel precision coating device, aiming to solve the technical problem that metering pumps are usually directly and rigidly connected to the frame, and the vibrations generated during their operation are transmitted to the entire frame system without buffering, and then transmitted to the coating head module through pipelines, affecting the coating quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flow control structure for a multi-channel precision coating device includes a metering pump, a base plate, a first inlet pipe, a second inlet pipe, a first outlet pipe, and a second outlet pipe, and further includes:

[0008] First shock absorption mechanism: The first shock absorption mechanism is installed on the bottom outer wall of the base plate;

[0009] Second damping mechanism: The second damping mechanism is installed on the outer circumferential wall of the second feed pipe and the second discharge pipe. Support components are provided on the outer circumferential wall of the second feed pipe and the second discharge pipe. One end of the first feed pipe and one end of the first discharge pipe are connected to rubber flexible joints through flanges. One end of the two rubber flexible joints are respectively connected to one end of the second feed pipe and the second discharge pipe through flanges.

[0010] In this case, by adding a first damping mechanism and a second damping mechanism, which are installed at the bottom of the base plate and on the outer wall of the pipe respectively, a multi-stage damping system is formed. The first damping mechanism adopts a spring support structure to effectively absorb the vertical vibration generated by the operation of the metering pump. The second damping mechanism connects the pipe sections through rubber flexible joints and uses a flange connection method, which allows for slight displacement of the pipe while maintaining a reliable connection with other components. This design avoids the pipe stress concentration problem caused by traditional rigid connections and significantly extends the service life of the pipeline. The support component effectively disperses vibration energy and buffers the lateral vibration of the pipe by wrapping and supporting the pipe. The first and second damping mechanisms work together to greatly reduce the transmission amplitude of metering pump vibration to the frame and coating head, thereby avoiding the adverse effects of vibration on coating quality.

[0011] In a preferred embodiment, the support assembly includes two fixing sleeves, each fixing sleeve having a connecting block on its outer circumferential wall. The two connecting blocks are connected to the same connecting frame on one side of their outer walls. The connecting frame has two mounting holes on one side of its outer wall, and a fixing rod is provided on the inner wall of each mounting hole. A second base and a baffle are respectively provided at both ends of the fixing rod. The outer wall of the baffle is connected to the inner wall of the connecting frame on one side by a spring.

[0012] Specifically, the support assembly clamps the pipe with a fixed sleeve, the connecting block and the connecting frame form a rigid frame, the fixing rod passes through the mounting hole and connects the second base and the baffle, and the spring is preloaded between the baffle and the connecting frame. When the pipe vibrates, the spring is compressed to absorb energy, the baffle limits the displacement amplitude, and the groove in the damping pad increases the deformation space, enhances the damping effect, and reduces the transmission amplitude of the metering pump vibration to the frame and coating head.

[0013] In a preferred embodiment, the first shock absorption mechanism includes a first base, four support rods are provided on the bottom inner wall of the first base, four mounting holes are provided on the bottom outer wall of the base plate, a support sleeve is provided at one end of each mounting hole, and the bottom outer wall of the base plate is connected to the bottom inner wall of the first base by a spring.

[0014] Specifically, both the first and second bases are bolted to the frame of the coating device, and the support rod of the first damping mechanism is inserted into the mounting hole of the base plate. The support sleeve serves as a guide bushing, and the spring is pre-compressed between the first base and the base plate. The mounting hole and the support rod are fitted with a clearance to ensure vertical floating. By optimizing the spring stiffness, the low-frequency vibration of the metering pump is effectively absorbed, the overall vibration acceleration of the equipment is reduced, and the impact of the mechanical vibration of the metering pump on the frame is reduced.

[0015] As described above, a flow control structure for a multi-channel precision coating device includes a metering pump, a base plate, a first feed pipe, a second feed pipe, a first discharge pipe, and a second discharge pipe. It also includes: a first damping mechanism disposed on the bottom outer wall of the base plate; and a second damping mechanism disposed on the circumferential outer walls of the second feed pipe and the second discharge pipe. Support components are provided on the circumferential outer walls of the second feed pipe and the second discharge pipe. One end of the first feed pipe and one end of the first discharge pipe are each connected to a rubber flexible joint via a flange. One end of each of the two rubber flexible joints is connected to one end of the second feed pipe and the second discharge pipe via flanges, respectively. The flow control structure for the multi-channel precision coating device provided by this invention has the technical effect of reducing the vibration transmission amplitude of the metering pump and reducing the impact of vibration on coating quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the flow control structure of a multi-channel precision coating device proposed in this utility model.

[0017] Figure 2 This is a side view of the overall structure of the flow control structure of a multi-channel precision coating device proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the first damping mechanism of the flow control structure of a multi-channel precision coating device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the second shock absorption mechanism of the flow control structure of a multi-channel precision coating device proposed in this utility model.

[0020] In the attached diagram: 1. Metering pump; 2. Base plate; 3. First base; 4. First feed pipe; 5. First discharge pipe; 6. Rubber flexible joint; 7. Connecting frame; 8. Second base; 9. Second feed pipe; 10. Second discharge pipe; 11. Fixing sleeve; 12. Support rod; 13. Support sleeve; 14. Fixing rod; 15. Baffle; 16. Shock-absorbing pad. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] The flow control structure of the multi-channel precision coating device disclosed in this utility model is mainly used in scenarios where the metering pump is usually directly and rigidly connected to the frame, and the vibration generated during its operation is transmitted to the entire frame system without buffering, and then transmitted to the coating head module through the pipeline, affecting the coating quality.

[0023] Reference Figure 1 and Figure 2 A flow control structure for a multi-channel precision coating device includes a metering pump 1, a base plate 2, a first feed pipe 4, a second feed pipe 9, a first discharge pipe 5, and a second discharge pipe 10. It also includes: a first damping mechanism: the first damping mechanism is disposed on the bottom outer wall of the base plate 2; a second damping mechanism: the second damping mechanism is disposed on the circumferential outer wall of the second feed pipe 9 and the second discharge pipe 10. Support components are disposed on the circumferential outer walls of the second feed pipe 9 and the second discharge pipe 10. One end of the first feed pipe 4 and one end of the first discharge pipe 5 are each connected to a rubber flexible joint 6 via a flange. One end of each of the two rubber flexible joints 6 is respectively connected to one end of the second feed pipe 9 and the second discharge pipe 10 via flanges.

[0024] The base plate 2 is set on the bottom outer wall of the metering pump 1, and the second feed pipe 9 and the second discharge pipe 10 are both set on the metering pump 1.

[0025] In practical use, by adding a first damping mechanism and a second damping mechanism, which are respectively installed at the bottom of the base plate 2 and on the outer wall of the pipe, a multi-stage damping system is formed. The first damping mechanism adopts a spring support structure to effectively absorb the vertical vibration generated by the operation of the metering pump 1. The second damping mechanism connects the pipe sections through rubber flexible joints 6 and adopts a flange connection method, which allows the pipe to make small displacements while maintaining a reliable connection with other components. This design avoids the pipe stress concentration problem caused by traditional rigid connections and significantly extends the service life of the pipeline. The support component effectively disperses vibration energy and buffers the lateral vibration of the pipe by wrapping and supporting the pipe. The first damping mechanism and the second damping mechanism work together to greatly reduce the transmission amplitude of the vibration of the metering pump 1 to the frame and coating head, thereby avoiding the adverse effects of vibration on the coating quality.

[0026] Reference Figure 1 and Figure 4 In a preferred embodiment, the support assembly includes two fixing sleeves 11. A connecting block is provided on the outer circumferential wall of the fixing sleeve 11. The same connecting frame 7 is connected to one side of the outer wall of the two connecting blocks. Two mounting holes are opened on one side of the outer wall of the connecting frame 7. A fixing rod 14 is provided on the inner wall of the mounting hole. A second base 8 and a baffle 15 are respectively provided at both ends of the fixing rod 14. One side of the outer wall of the baffle 15 is connected to one side of the inner wall of the connecting frame 7 by a spring.

[0027] Specifically, the support assembly clamps the pipe with the fixing sleeve 11, the connecting block and the connecting frame 7 form a rigid frame, the fixing rod 14 passes through the mounting hole and connects the second base 8 and the baffle 15, the spring is pre-compressed between the baffle 15 and the connecting frame 7, when the pipe vibrates, the spring is compressed to absorb energy, the baffle 15 limits the displacement amplitude, the groove in the damping pad 16 increases the deformation space, enhances the damping effect, and reduces the transmission amplitude of the vibration of the metering pump 1 to the frame and the coating head.

[0028] Reference Figure 1 and Figure 3 In a preferred embodiment, a shock-absorbing pad 16 is provided on the inner circumference of the fixing sleeve 11, and a plurality of equally spaced grooves are provided on the inner wall of the shock-absorbing pad 16.

[0029] It should be noted that the shock-absorbing pad 16 is made of polyurethane material, and the grooves on the inner wall are distributed in a ring array. The grooves generate elastic deformation when under pressure. The fixing sleeve 11 is locked by bolts to make the shock-absorbing pad 16 fit tightly against the outer wall of the pipe, while allowing slight radial slippage. The shock-absorbing pad 16 isolates the pipe from the metal fixing sleeve 11 to avoid direct friction between the metals.

[0030] Reference Figure 1 and Figure 3 In a preferred embodiment, the first shock absorption mechanism includes a first base 3, four support rods 12 are provided on the bottom inner wall of the first base 3, four assembly holes are provided on the bottom outer wall of the base plate 2, and a support sleeve 13 is provided at one end of each assembly hole. The bottom outer wall of the base plate 2 is connected to the bottom inner wall of the first base 3 by a spring.

[0031] The inner wall of the assembly hole and the inner wall of the support sleeve 13 are in contact with the outer wall of the support rod 12.

[0032] Specifically, the first base 3 and the second base 8 are both bolted to the frame of the coating device, and the support rod 12 of the first damping mechanism is inserted into the mounting hole of the base plate 2. The support sleeve 13 serves as a guide bushing. The spring is pre-compressed between the first base 3 and the base plate 2. The mounting hole and the support rod 12 are clearance-fitted to ensure vertical floating. By optimizing the spring stiffness, the low-frequency vibration of the metering pump 1 is effectively absorbed, the overall vibration acceleration of the equipment is reduced, and the mechanical vibration of the metering pump 1 is reduced on the frame.

[0033] Working principle: During operation, the vertical vibration generated by the metering pump 1 is first transmitted to the first damping mechanism through the base plate 2. The support rod 12 of the first damping mechanism slides within the assembly hole, and the spring compression absorbs the vibration energy. The guiding effect of the support sleeve 13 ensures that the vibration is attenuated only in the vertical direction.

[0034] To avoid lateral displacement, the pipe vibration of metering pump 1 is transmitted to the second damping mechanism through the second feed pipe 9 and the second discharge pipe 10. The rubber flexible joint 6 buffers the axial and radial displacement of the pipe through elastic deformation, while the fixed sleeve 11 of the support component works in conjunction with the damping pad 16. The groove structure disperses the vibration wave when under pressure, and the baffle 15 connected by the spring limits the vibration amplitude, further suppressing high-frequency vibration.

[0035] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A flow control structure for a multi-channel precision coating device, comprising a metering pump (1), a base plate (2), a first feed pipe (4), a second feed pipe (9), a first discharge pipe (5), and a second discharge pipe (10), characterized in that, Also includes: First shock absorption mechanism: The first shock absorption mechanism is installed on the bottom outer wall of the base plate (2); Second shock absorption mechanism: The second shock absorption mechanism is set on the outer circumference of the second feed pipe (9) and the second discharge pipe (10). Support components are provided on the outer circumference of the second feed pipe (9) and the second discharge pipe (10). One end of the first feed pipe (4) and one end of the first discharge pipe (5) are connected to rubber flexible joints (6) through flanges. One end of the two rubber flexible joints (6) are respectively connected to one end of the second feed pipe (9) and the second discharge pipe (10) through flanges.

2. The flow control structure of a multi-channel precision coating apparatus according to claim 1, wherein The support assembly includes two fixing sleeves (11). A connecting block is provided on the outer circumference of the fixing sleeve (11). The same connecting frame (7) is connected to one side of the outer wall of the two connecting blocks. Two mounting holes are opened on one side of the outer wall of the connecting frame (7). A fixing rod (14) is provided on the inner wall of the mounting hole. A second base (8) and a baffle (15) are respectively provided at both ends of the fixing rod (14). One side of the outer wall of the baffle (15) is connected to one side of the inner wall of the connecting frame (7) by a spring.

3. The flow control structure of a multi-channel precision coating apparatus according to claim 2, wherein, The inner circumferential wall of the fixed sleeve (11) is provided with a shock-absorbing pad (16), and the inner wall of the shock-absorbing pad (16) is provided with a number of equally spaced grooves.

4. The flow control structure of a multi-channel precision coating apparatus according to claim 1, wherein The first shock absorption mechanism includes a first base (3), and four support rods (12) are provided on the bottom inner wall of the first base (3). Four assembly holes are provided on the bottom outer wall of the base plate (2). A support sleeve (13) is provided at one end of the assembly hole. The bottom outer wall of the base plate (2) is connected to the bottom inner wall of the first base (3) by a spring.

5. The flow control structure of a multi-channel precision coating apparatus according to claim 4, wherein The inner wall of the assembly hole, the inner wall of the support sleeve (13), and the outer wall of the support rod (12) are in contact.

6. The flow control structure of a multi-channel precision coating apparatus according to claim 5, wherein The base plate (2) is disposed on the bottom outer wall of the metering pump (1).

7. The flow control structure of a multi-channel precision coating apparatus according to claim 1, wherein The second feed pipe (9) and the second discharge pipe (10) are both installed on the metering pump (1).

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