A single-drive dual-link electric grille structure and coating machine

Abstract

This utility model relates to the field of vacuum coating machine technology, specifically a single-drive double-link electric grid structure and coating machine. By connecting one end of a first drive shaft mechanism to a drive assembly and the other end to a second drive shaft mechanism, a first grid plate assembly is mounted on the first drive shaft mechanism, and a second grid plate assembly is mounted on the second drive shaft mechanism. Under the drive of the drive assembly, the first drive shaft mechanism can drive the second drive shaft mechanism to rotate synchronously, causing the first and second grid plate assemblies to rotate synchronously. Compared to using two independent drive devices to control the grid plate assemblies on the two extraction ports separately, the single drive assembly reduces the number of drive devices, making the overall structure of the equipment simpler. Furthermore, the synchronous rotation of the first and second drive shaft mechanisms helps avoid asynchronous adjustment of the two extraction ports due to differences in the operation of the two independent drive devices, effectively improving coating quality.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating machine technology, specifically a single-drive double-link electric grid structure and coating machine. Background Technology

[0002] A coating machine is a key piece of equipment for coating the surface of materials. It creates a specific vacuum environment inside a vacuum chamber and uses evaporation, sputtering and other methods to deposit coating materials onto the surface of the workpiece to be coated, thereby giving the workpiece excellent properties such as wear resistance, corrosion resistance and aesthetics.

[0003] To ensure that the vacuum chamber can quickly reach and maintain the required vacuum level, an air extraction system is usually required. The air extraction port, as the connection channel between the air extraction system and the vacuum chamber, is crucial for the precise adjustment of its opening and closing degree, which is essential for the control of air extraction efficiency and vacuum level.

[0004] Currently, for vacuum chambers with two air extraction ports, coating machines typically use two independent drive units to control the corresponding grid plate assembly of the air extraction port to adjust the opening and closing degree. However, the setting of two independent drive units not only makes the overall structure of the equipment more complex, increases manufacturing costs and the difficulty of later maintenance, but also easily leads to asynchronous adjustment of the two air extraction ports due to the difference in operation of the two drive units, thereby affecting the stability of air extraction and resulting in low coating quality.

[0005] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0006] The existing coating machines mentioned above typically use two independent drive units to control the grid plate assemblies on the two air extraction ports respectively. However, the setup of two independent drive units not only makes the overall structure of the equipment more complex, but also easily leads to asynchronous adjustment of the two air extraction ports due to differences in the operation of the two drive units, thus affecting the coating quality. The technical solution adopted by this utility model to solve this problem is:

[0007] A single-drive dual-gang electric grille structure includes a drive assembly, a first transmission shaft mechanism, a first grille plate assembly mounted on the first transmission shaft mechanism, a second transmission shaft mechanism, and a second grille plate assembly mounted on the second transmission shaft mechanism. One end of the first transmission shaft mechanism is connected to the drive assembly, and the other end is connected to the second transmission shaft mechanism. Under the drive of the drive assembly, the first transmission shaft mechanism drives the second transmission shaft mechanism to rotate synchronously, thereby causing the first grille plate assembly and the second grille plate assembly to rotate synchronously.

[0008] Furthermore, a first coupling is provided between the first transmission shaft mechanism and the second transmission shaft mechanism.

[0009] Furthermore, a second coupling is provided between the drive assembly and the first transmission shaft mechanism.

[0010] Furthermore, the drive assembly includes a servo motor, a third coupling connected to the servo motor, a support base disposed on the outer periphery of the third coupling, and a magnetohydrodynamic fluid disposed on the support base near the second coupling.

[0011] Furthermore, the first grating plate assembly and the second grating plate assembly have the same structure, and the first drive shaft mechanism and the second drive shaft mechanism have the same structure.

[0012] Furthermore, the first drive shaft mechanism includes a first main drive shaft, a first driven shaft and a second driven shaft connected to the drive assembly, and the first grating plate assembly includes a first grating plate mounted on the first driven shaft, a second grating plate mounted on the first main drive shaft and a third grating plate mounted on the second driven shaft, and a hinge mechanism is provided between the first grating plate, the second grating plate and the third grating plate.

[0013] Furthermore, the hinge mechanism includes a connecting rod arranged in a vertical direction and a connecting rod pin. The second grid plate is hinged to the middle position of the connecting rod through the connecting rod pin, the first grid plate is hinged to one side of the connecting rod through the connecting rod pin, and the third grid plate is hinged to the other side of the connecting rod through the connecting rod pin.

[0014] Furthermore, multiple connecting rods are provided, and several connecting rods are spaced apart along the length direction of the second grid plate.

[0015] Furthermore, the first grating assembly includes a first mounting bracket, and the ends of the first main drive shaft, the first driven shaft, and the second driven shaft are all provided with bearings, and are mounted to the first mounting bracket through the bearings.

[0016] This utility model also provides a coating machine, including a coating chamber housing and a single-drive double-link electric grid structure as described above connected to the coating chamber housing.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention connects one end of a first drive shaft mechanism to a drive assembly and the other end to a second drive shaft mechanism. A first grid plate assembly is mounted on the first drive shaft mechanism, and a second grid plate assembly is mounted on the second drive shaft mechanism. Under the drive of the drive assembly, the first drive shaft mechanism can drive the second drive shaft mechanism to rotate synchronously, thus causing the first and second grid plate assemblies to rotate synchronously. Compared to using two independent drive devices to control the grid plate assemblies on the two air extraction ports separately, the single drive assembly reduces the number of drive devices, resulting in a simpler overall structure. Furthermore, the synchronous rotation of the first and second drive shaft mechanisms helps avoid asynchronous adjustment of the two air extraction ports due to differences in the operation of the two independent drive devices, effectively improving the coating quality.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the single-drive double-link electric grille of this utility model;

[0021] Figure 2 This is one of the structural schematic diagrams of the drive component of this utility model;

[0022] Figure 3 This is the second schematic diagram of the drive component of this utility model;

[0023] Figure 4 This is one of the structural schematic diagrams showing the connection between the first transmission shaft mechanism and the first grille assembly of this utility model;

[0024] Figure 5 This is the second schematic diagram showing the connection between the first transmission shaft mechanism and the first grille assembly of this utility model.

[0025] Figure 6 for Figure 5 Cross-sectional view along line AA;

[0026] Figure 7 This is the third schematic diagram of the connection between the first transmission shaft mechanism and the first grid plate assembly of this utility model;

[0027] Figure 8 for Figure 7 Cross-sectional view along line BB;

[0028] Figure 9 This is a schematic diagram of the coating machine of this utility model. Detailed Implementation

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1 to 9 The single-drive double-link electric grille structure shown includes a drive assembly 1, a first transmission shaft mechanism 2, a first grille plate assembly 3 mounted on the first transmission shaft mechanism 2, a second transmission shaft mechanism 4, and a second grille plate assembly 5 mounted on the second transmission shaft mechanism 4. One end of the first transmission shaft mechanism 2 is connected to the drive assembly 1, and the other end is connected to the second transmission shaft mechanism 4. Under the drive of the drive assembly 1, the first transmission shaft mechanism 2 drives the second transmission shaft mechanism 4 to rotate synchronously, so that the first grille plate assembly 3 and the second grille plate assembly 5 rotate synchronously.

[0031] This invention connects one end of a first drive shaft mechanism to a drive assembly and the other end to a second drive shaft mechanism. A first grid plate assembly is mounted on the first drive shaft mechanism, and a second grid plate assembly is mounted on the second drive shaft mechanism. Under the drive of the drive assembly, the first drive shaft mechanism can drive the second drive shaft mechanism to rotate synchronously, thus causing the first and second grid plate assemblies to rotate synchronously. Compared to using two independent drive devices to control the grid plate assemblies on the two air extraction ports separately, the single drive assembly reduces the number of drive devices, resulting in a simpler overall structure. Furthermore, the synchronous rotation of the first and second drive shaft mechanisms helps avoid asynchronous adjustment of the two air extraction ports due to differences in the operation of the two independent drive devices, effectively improving the coating quality.

[0032] Furthermore, reducing the use of a separate drive unit helps to lower the manufacturing cost of the equipment. At the same time, the simplified structure also reduces the workload of installation and commissioning, further reducing production costs.

[0033] Optionally, in some embodiments, the first drive shaft mechanism 2 includes a first main drive shaft 21 connected to the drive assembly 1, and the first grid plate assembly 3 includes a grid plate, the cross-section of which corresponds to the cross-section of the first air extraction port of the vacuum chamber. The grid plate is installed on the first main drive shaft 21 by welding or threaded connection. Similarly, the second drive shaft mechanism 4 includes a second main drive shaft connected to the first main drive shaft 21, and the second grid plate assembly 5 includes a grid plate, the cross-section of which corresponds to the cross-section of the second air extraction port of the vacuum chamber. The grid plate of the second grid plate assembly 5 is installed on the second main drive shaft by welding or threaded connection. When the drive assembly 1 is working normally, the drive assembly 1 drives the first main drive shaft 21 to rotate, and the grid plate of the first grid plate assembly 3 rotates synchronously with the first main drive shaft 21. At the same time, the first main drive shaft 21 drives the second main drive shaft to rotate synchronously, so that the grid plate of the second grid plate assembly 5 also rotates synchronously.

[0034] Optionally, in some embodiments, the first drive shaft mechanism 2 includes a first main drive shaft 21 connected to the drive assembly 1, and the first grid plate assembly 3 includes several identical grid pieces, which are arranged side by side in the horizontal direction on the first main drive shaft 21. The total cross-section of the several grid pieces of the first grid plate assembly 3 corresponds to the cross-section of the first air extraction port. Similarly, the second drive shaft mechanism 4 includes a second main drive shaft connected to the first main drive shaft 21, and the second grid plate assembly 5 includes several identical grid pieces, which are arranged side by side in the horizontal direction on the second main drive shaft. When the drive assembly 1 is working normally, the drive assembly 1 drives the first main drive shaft 21 to rotate, and the several grid pieces of the first grid plate assembly 3 rotate synchronously. At the same time, the first main drive shaft 21 drives the second main drive shaft to rotate synchronously, so that the several grid pieces of the second grid plate assembly 5 also rotate synchronously.

[0035] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the first drive shaft mechanism 2 includes a first main drive shaft 21 connected to the drive assembly 1 and a plurality of driven drive shafts; the first grid plate assembly 3 includes a plurality of identical grid pieces; the sum of the number of the first main drive shaft 21 and the number of driven drive shafts is equal to the sum of the number of grid pieces; one grid piece is mounted on the first main drive shaft 21, and the remaining grid pieces are correspondingly mounted on each driven drive shaft; the plurality of grid pieces are arranged side by side in a vertical direction, and a hinge mechanism is provided between the plurality of grid pieces; similarly, the second drive shaft mechanism 4 includes a second main drive shaft connected to the first main drive shaft 21 and a plurality of driven drive shafts; the second grid plate assembly 5 includes a plurality of identical grid pieces; the sum of the number of the second main drive shaft and the number of driven drive shafts is equal to the sum of the number of grid pieces. The sum of the quantities equals the sum of the number of grid pieces in the second grid plate assembly 5. One grid piece is installed on the second main drive shaft, and the remaining grid pieces are correspondingly installed on each of the driven shafts of the second drive shaft mechanism 4. Several grid pieces are arranged side by side in the vertical direction, and a hinge mechanism 8 is provided between several grid pieces. When the drive assembly 1 is working normally, the drive assembly 1 drives the first main drive shaft 21 to rotate. The grid pieces installed on the first main drive shaft 21 rotate synchronously, and under the action of the hinge mechanism 8, the remaining grid pieces on the driven shafts also rotate synchronously. At the same time, the first main drive shaft 21 drives the second main drive shaft to rotate synchronously, and the grid pieces installed on the second main drive shaft rotate synchronously. Under the action of the hinge mechanism, the remaining grid pieces on the driven shafts also rotate synchronously.

[0036] Optionally, in some embodiments, the end of the first transmission shaft mechanism 2 is provided with a driving gear, and the corresponding end of the second transmission shaft mechanism 4 is provided with a driven gear that meshes with the driving gear. The driving gear and the driven gear have the same number of teeth. When the first transmission shaft mechanism 2 rotates, the driving gear drives the driven gear to rotate synchronously. Since the number of teeth is the same, the rotation speed of the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 can be kept consistent, thereby achieving synchronous rotation.

[0037] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 are connected by a rigid coupling. The rigid coupling can be a rigid sleeve coupling or a flange coupling. The rigid coupling has the characteristics of simple structure and large torque transmission, which is beneficial to ensure that the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 have no relative displacement during rotation, thereby achieving strict synchronous rotation.

[0038] like Figures 1 to 9 A first coupling 6 is provided between the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 shown;

[0039] Furthermore, the first coupling 6 can firmly connect the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4, ensuring that power is stably transmitted from the first transmission shaft mechanism 2 to the second transmission shaft mechanism 4, effectively avoiding problems such as loosening and slippage during transmission, thereby stably achieving synchronous rotation of the two, which is conducive to ensuring the synchronous adjustment of the opening and closing degree of the two air extraction ports by the first grid plate assembly 3 and the second grid plate assembly 5 respectively.

[0040] Furthermore, during actual installation, the axes of the first drive shaft mechanism 2 and the second drive shaft mechanism 4 may have a certain coaxiality error, or relative displacement may occur due to factors such as vibration and temperature changes during equipment operation. The first coupling 6 can compensate for these errors and displacements through its own elastic deformation or structural characteristics.

[0041] Furthermore, by connecting the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 through the first coupling 6, there is no need to perform high-precision alignment and installation of the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4, which reduces the installation difficulty and cost. Secondly, during equipment maintenance, the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 can be easily separated by disassembling the first coupling 6, which helps to improve the convenience of maintenance.

[0042] like Figures 1 to 9 A second coupling 7 is provided between the drive assembly 1 and the first transmission shaft mechanism 2 shown;

[0043] Furthermore, the second coupling 7 can reliably transmit the power of the drive assembly 1 to the first transmission shaft mechanism 2, ensuring a tight power connection between the two and avoiding power transmission interruption or slippage, which helps ensure that the first transmission shaft mechanism 2 can rotate stably with the drive assembly 1.

[0044] Furthermore, during installation, the axis of the drive assembly 1 and the first transmission shaft mechanism 2 may have a coaxiality deviation due to factors such as machining accuracy or assembly error. The second coupling 7 can compensate for this deviation through the deformation of its own structure, reduce the additional torque caused by axis misalignment, and avoid wear or damage to the drive assembly 1 and the first transmission shaft mechanism 2 due to long-term exposure to additional stress, which is beneficial to extending the service life of the components.

[0045] Furthermore, connecting the drive assembly 1 and the first transmission shaft mechanism 2 via the second coupling 7 helps to reduce the installation alignment accuracy requirements of both, thereby simplifying the assembly process. During equipment maintenance, the user only needs to disassemble the second coupling 7 to separate the drive assembly 1 from the first transmission shaft mechanism 2, which facilitates individual maintenance of either the drive assembly 1 or the first transmission shaft mechanism 2, and helps to reduce downtime and maintenance costs.

[0046] like Figures 1 to 9 The drive assembly 1 shown includes a servo motor 11, a third coupling 12 connected to the servo motor 11, a support base 13 disposed on the outer periphery of the third coupling 12, and a magnetofluid 14 disposed on the support base 13 near the second coupling 7.

[0047] Furthermore, the servo motor 11 is a motor that can precisely control the speed and position, and has the characteristics of high precision, fast response and high dynamic performance. Using the servo motor 11 as the drive source can realize precise control of the transmission system, which is conducive to ensuring the synchronous rotation accuracy of the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4.

[0048] Furthermore, the third coupling 12 is used to connect the servo motor 11 and subsequent transmission components, which can ensure smooth power transmission and absorb some vibration and shock, thus protecting the servo motor 11 and the transmission system.

[0049] Furthermore, the support base 13 is located on the outer periphery of the third coupling 12, which can provide rigid support for the third coupling 12 and the connected shaft components, reduce component shaking or displacement caused by torque fluctuation or vibration during transmission, improve the structural stability of the entire drive assembly 1, avoid the decrease in transmission accuracy caused by component loosening, and reduce vibration noise, effectively ensuring the smooth operation of the equipment.

[0050] Furthermore, the coating machine needs to operate in a vacuum environment, and the connection between the rotating shaft of the drive component 1 and the vacuum chamber needs to be strictly sealed to prevent gas leakage from damaging the vacuum environment. The magnetofluid 14 can use the principle of magnetic control to form a dynamic seal between the rotating shaft and the fixed chamber, effectively maintaining the vacuum environment required for coating.

[0051] like Figures 1 to 9 The first grid plate assembly 3 and the second grid plate assembly 5 shown have the same structure, and the first drive shaft mechanism 2 and the second drive shaft mechanism 4 have the same structure.

[0052] Furthermore, the identical structure of the two sets of grating plate assemblies and the two sets of drive shaft mechanisms facilitates the interchangeability of parts, significantly reduces the types of molds, tooling, and processing procedures, helps improve processing efficiency, and effectively reduces production costs.

[0053] Furthermore, since the two sets of grating plate assemblies and the two sets of transmission shaft mechanisms adopt the same structure, their mechanical parameters such as rotational inertia, frictional resistance, and response characteristics are highly symmetrical. Under the single drive, it is beneficial to achieve the motion synchronization and opening and closing consistency of the first grating plate assembly 3 and the second grating plate assembly 5, avoid adjustment deviations caused by structural differences, thereby ensuring the uniformity of airflow at the air extraction ports on both sides of the vacuum chamber and improving the stability of the coating process.

[0054] Furthermore, components with the same structure do not need to be distinguished as left or right or master or slave during installation, which enables users to assemble them universally, significantly simplifying the on-site assembly process and reducing the probability of errors.

[0055] like Figures 1 to 9 The first drive shaft mechanism 2 shown includes a first main drive shaft 21, a first driven drive shaft 22 and a second driven drive shaft 23 connected to the drive assembly 1. The first grid plate assembly 3 includes a first grid plate 31 installed on the first driven drive shaft 22, a second grid plate 32 installed on the first main drive shaft 21, and a third grid plate 33 installed on the second driven drive shaft 23. A hinge mechanism 8 is provided between the first grid plate 31, the second grid plate 32 and the third grid plate 33.

[0056] Furthermore, the first grid plate 31, the second grid plate 32, and the third grid plate 33 are connected by the hinge mechanism 8, which helps to ensure that the three plates rotate strictly synchronously when they are arranged side by side in the vertical direction. This avoids action delays caused by differences in their respective forces or installation errors, helps to ensure the consistency of the air intake flow area adjustment, and effectively improves the air pressure control accuracy.

[0057] Furthermore, the articulation mechanism 8 can evenly transmit the power of a single drive source to the three grid plates, eliminating the need for a separate drive component for each grid plate. This simplifies the overall structure, reduces energy loss, and provides a clear power transmission path, facilitating later inspection and maintenance.

[0058] Optionally, in some embodiments, the hinge mechanism 8 includes several swing arms fixed to the grid plates and short connecting rods connected to the swing arms. One end of the swing arm is welded or screwed to each grid plate, and the other end is hinged to the short connecting rod through a pin. Multiple swing arms and short connecting rods form a "Z" or "N" shaped transmission chain, thereby realizing the step-by-step pushing of the grid plates.

[0059] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the hinge mechanism 8 includes a connecting rod 81 and a connecting rod pin 82. The connecting rod 81 has hinge lugs at both ends and the middle. The connecting rod 81 is arranged vertically. The first grid plate 31 is hinged to the top of the connecting rod 81 via the connecting rod pin 82 and the hinge lugs. The second grid plate 32 is hinged to the middle of the connecting rod 81 via the connecting rod pin 82 and the hinge lugs. The third grid plate 33 is hinged to the bottom of the connecting rod 81 via the connecting rod pin 82 and the hinge lugs. When the drive assembly 1 is working, the second grid plate 32 rotates synchronously. At this time, the position of the connecting rod 81 moves relative to each other in the vertical direction, thereby driving the first grid plate 31 and the third grid plate 33 to rotate around the drive shaft, so as to achieve synchronous rotation of the three grid plates.

[0060] Preferably, the connection method of the first drive shaft mechanism 2, the first grid plate assembly 3 and the hinge mechanism 8 is the same as the connection method of the second drive shaft mechanism 4, the second grid plate assembly 5 and the hinge mechanism 8.

[0061] like Figures 1 to 9 The hinge mechanism 8 shown includes a connecting rod 81 arranged in a vertical direction and a connecting rod pin 82. The second grid plate 32 is hinged to the middle position of the connecting rod 81 through the connecting rod pin 82. The first grid plate 31 is hinged to one side of the connecting rod 81 through the connecting rod pin 82. The third grid plate 33 is hinged to the other side of the connecting rod 81 through the connecting rod pin 82.

[0062] Furthermore, the second grid plate 32 is hinged to the middle of the connecting rod 81 as a "reference point" for linkage, while the first grid plate 31 and the third grid plate 33 are distributed on both sides of the connecting rod 81, forming a "middle drive, both sides follow" structure. When the first main drive shaft 21 drives the second grid plate 32 to rotate, the connecting rod 81 will swing synchronously with the middle as the fulcrum, and the motion is precisely transmitted through the connecting rod pins 82 on both sides, so that the rotation angle and speed of the first grid plate 31 and the third grid plate 33 are exactly the same.

[0063] Furthermore, the distribution of the first grid plate 31 and the third grid plate 33 balances the forces on both sides of the connecting rod 81, reducing the bending or deformation of the connecting rod 81 caused by excessive force on one side.

[0064] Furthermore, the connecting rod 81 is set in the vertical direction, and the hinge structure of the connecting rod pin 82 helps to strictly constrain the movement direction of each grid piece and avoid lateral deviation or jamming.

[0065] like Figures 1 to 9 The connecting rod 81 shown is provided in multiple ways, and several connecting rods 81 are spaced apart along the length direction of the second grid plate 32;

[0066] Furthermore, when a single connecting rod 81 transmits motion on a long grid plate, the movements on both sides may be asynchronous due to deformation of the connecting rod 81 or installation deviation. By setting multiple connecting rods 81 at intervals along the length of the grid plate, a multi-point linkage mechanism can be formed, which can effectively ensure that the three grid plates rotate synchronously, avoid the torsional deformation phenomenon where one side moves first and the other side lags behind, and ensure the smoothness and repeatability of the opening and closing action.

[0067] Furthermore, multiple connecting rods 81 share the transmission load, distributing the torque originally concentrated at a single hinge point to multiple connection positions, significantly reducing the local stress at each hinge point, reducing wear and fatigue risks, and effectively extending the service life of the hinge mechanism 8.

[0068] Furthermore, the multiple connecting rods 81 have a certain degree of redundancy. Even if one connecting rod 81 or connecting rod pin 82 is temporarily damaged due to accident, the remaining connecting rods 81 can still continue to transmit some power to maintain the basic opening and closing function of the grille and avoid the complete failure of the equipment.

[0069] like Figures 1 to 9 The first grid plate assembly 3 shown includes a first mounting bracket 34. The ends of the first main drive shaft 21, the first driven shaft 22 and the second driven shaft 23 are all provided with bearings 24 and are mounted to the first mounting bracket 34 through the bearings 24.

[0070] Furthermore, the first mounting bracket 34 provides a unified and robust mounting base for the first main drive shaft 21, the first driven drive shaft 22, and the second driven drive shaft 23. The first main drive shaft 21, the first driven drive shaft 22, and the second driven drive shaft 23 are mounted on the first mounting bracket 34 via bearings 24, which can effectively limit the radial and axial displacement of the drive shafts, prevent shaking or offset during rotation, ensure that the first grid plate assembly 3 always maintains a precise relative position, and ensure the stability of the air extraction flow area adjustment.

[0071] Furthermore, the bearing 24 can convert the sliding friction between the drive shaft and the first mounting bracket 34 into rolling friction, which greatly reduces the rotational resistance, allowing the drive assembly 1 to drive the drive shaft to rotate more easily, reducing energy loss, and making the adjustment of the grille plate more stable and smooth, avoiding adjustment jamming caused by excessive friction.

[0072] Furthermore, the first mounting bracket 34 can ensure the parallelism and spacing accuracy of the three drive shafts, reduce the tilting or misalignment of the drive shafts caused by installation errors, thereby ensuring the synchronous rotation of the first grid plate 31, the second grid plate 32 and the third grid plate 33, and avoiding the problem of inconsistent grid plate movement caused by the position deviation of the drive shaft.

[0073] like Figures 1 to 9 The coating machine shown includes a coating chamber housing 9 and a single-drive double-link electric grid structure as described above connected to the coating chamber housing 9;

[0074] Specifically, by integrating a single-drive dual-gang electric grille structure into the coating chamber housing 9, it is beneficial to achieve synchronous and precise adjustment of the opening and closing states of the air extraction ports on both sides of the housing. Only one drive component 1 is needed to drive the two sets of grille components to work together, which not only simplifies the overall structure of the equipment and reduces manufacturing costs and control complexity, but also avoids the problem of uneven air extraction caused by asynchronous control in the traditional dual-motor drive mode. Secondly, the mechanical linkage ensures the consistency of the opening and closing of the first grille component 3 and the second grille component 5, which effectively improves the symmetry of airflow distribution and the stability of pressure control in the coating chamber housing 9.

[0075] The working mode of this utility model is as follows:

[0076] The first grid plate assembly 3, consisting of a first grid plate 31, a second grid plate 32, and a third grid plate 33, is arranged side-by-side in a vertical direction. The first grid plate 31 is mounted on a first driven shaft 22 in the first drive shaft mechanism 2, the second grid plate 32 is mounted on a first main drive shaft 21 in the first drive shaft mechanism 2, and the third grid plate 33 is mounted on a second driven shaft 23 in the first drive shaft mechanism 2. One end of the first main drive shaft 21 is connected to the drive assembly 1, and the other end is connected to the second drive shaft mechanism 4. A connecting rod 81 arranged in a vertical direction is provided between the first grid plate 31, the second grid plate 32, and the third grid plate 33. The second grille 32 is hinged to the top of the connecting rod 81 via the connecting rod pin 82, the third grille 33 is hinged to the bottom of the connecting rod 81 via the connecting rod pin 82, and the third grille 33 is hinged to the bottom of the connecting rod 81 via the connecting rod pin 82. In the closed state, the cross-sections of the three grilles correspond to the cross-sections of the air extraction port. When the drive assembly 1 is working normally, the drive assembly 1 drives the first main drive shaft 21 to rotate counterclockwise. The second grille 32 is mounted on the first main drive shaft 21 so that the second grille 32 rotates synchronously with the first main drive shaft 21. At the same time, the second grille 32 is hinged to the middle of the connecting rod 81, thereby driving... When the moving link 81 moves upward vertically, the first grid plate 31 and the third grid plate 33 rotate around the first driven shaft 22 and the second driven shaft 23 respectively, thereby achieving synchronous rotation of the first grid plate 31, the second grid plate 32, and the third grid plate 33, and the vacuum chamber's exhaust port is open. When it is necessary to close the exhaust port, the drive assembly 1 rotates in the opposite direction. Under the action of the first main drive shaft 21, the second grid plate 32 folds in the opposite direction. At this time, the second grid plate 32 drives the link 81 to move downward vertically, and the first grid plate 31 and the third grid plate 33 fold downward in the opposite direction. The grid plate 32 and the third grid plate 33 work together to cover the vacuum chamber's air extraction port. Similarly, the structure of the second drive shaft mechanism 4 is the same as that of the first drive shaft mechanism 2, and the structure of the first grid plate assembly 3 is the same as that of the second grid plate assembly 5. The connection method of the first grid plate assembly 3, the first drive shaft mechanism 2, and the hinge mechanism 8 is the same as that of the second drive shaft mechanism 4, the second grid plate assembly 5, and the hinge mechanism 8. The first drive shaft mechanism 2 can drive the second drive shaft mechanism 4 to rotate synchronously, and the opening and closing method of the second grid plate assembly 5 is the same as that of the first grid plate assembly 3.

[0077] The implementation method of Example 1 is as follows:

[0078] A single-drive double-link electric grille structure includes a drive assembly 1, a first transmission shaft mechanism 2, a first grille plate assembly 3 mounted on the first transmission shaft mechanism 2, a second transmission shaft mechanism 4, and a second grille plate assembly 5 mounted on the second transmission shaft mechanism 4. One end of the first transmission shaft mechanism 2 is connected to the drive assembly 1, and the other end is connected to the second transmission shaft mechanism 4. Under the drive of the drive assembly 1, the first transmission shaft mechanism 2 drives the second transmission shaft mechanism 4 to rotate synchronously, so that the first grille plate assembly 3 and the second grille plate assembly 5 rotate synchronously.

[0079] This invention connects one end of a first drive shaft mechanism to a drive assembly and the other end to a second drive shaft mechanism. A first grid plate assembly is mounted on the first drive shaft mechanism, and a second grid plate assembly is mounted on the second drive shaft mechanism. Under the drive of the drive assembly, the first drive shaft mechanism can drive the second drive shaft mechanism to rotate synchronously, thus causing the first and second grid plate assemblies to rotate synchronously. Compared to using two independent drive devices to control the grid plate assemblies on the two air extraction ports separately, the single drive assembly reduces the number of drive devices, resulting in a simpler overall structure. Furthermore, the synchronous rotation of the first and second drive shaft mechanisms helps avoid asynchronous adjustment of the two air extraction ports due to differences in the operation of the two independent drive devices, effectively improving the coating quality.

[0080] The implementation method of Example 2 is as follows:

[0081] Based on Example 1, Example 2 also has the following implementation method: A first coupling 6 is provided between the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4.

[0082] The implementation method of Example 3 is as follows:

[0083] Based on Embodiment 1, Embodiment 3 also has the following implementation method: a second coupling 7 is provided between the drive assembly 1 and the first transmission shaft mechanism 2.

[0084] The implementation method of Example 4 is as follows:

[0085] Based on Embodiment 3, Embodiment 4 further includes the following implementation: the drive assembly 1 includes a servo motor 11, a third coupling 12 connected to the servo motor 11, a support base 13 disposed on the outer periphery of the third coupling 12, and a magnetofluid 14 disposed on the side of the support base 13 near the second coupling 7.

[0086] The implementation method of Example 5 is as follows:

[0087] Based on Example 1, Example 5 also has the following implementation method: the first grid plate assembly 3 and the second grid plate assembly 5 have the same structure, and the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 have the same structure.

[0088] The implementation method of Example 6 is as follows:

[0089] Based on Embodiment 5, Embodiment 6 further includes the following implementation: The first drive shaft mechanism 2 includes a first main drive shaft 21, a first driven drive shaft 22, and a second driven drive shaft 23 connected to the drive assembly 1. The first grid plate assembly 3 includes a first grid plate 31 installed on the first driven drive shaft 22, a second grid plate 32 installed on the first main drive shaft 21, and a third grid plate 33 installed on the second driven drive shaft 23. A hinge mechanism 8 is provided between the first grid plate 31, the second grid plate 32, and the third grid plate 33.

[0090] The implementation method of Example 7 is as follows:

[0091] Based on Embodiment 6, Embodiment 7 further includes the following implementation: The hinge mechanism 8 includes a connecting rod 81 arranged in the vertical direction and a connecting rod pin 82. The second grid piece 32 is hinged to the middle position of the connecting rod 81 through the connecting rod pin 82, the first grid piece 31 is hinged to one side of the connecting rod 81 through the connecting rod pin 82, and the third grid piece 33 is hinged to the other side of the connecting rod 81 through the connecting rod pin 82.

[0092] The implementation method of Example 8 is as follows:

[0093] Based on Example 7, Example 8 also has the following implementation method: multiple connecting rods 81 are provided, and several connecting rods 81 are spaced apart along the length direction of the second grid plate 32.

[0094] The implementation method of Example 9 is as follows:

[0095] Based on Embodiment 6, Embodiment 9 also has the following implementation method: The first grid plate assembly 3 includes a first mounting bracket 34, and the ends of the first main drive shaft 21, the first driven shaft 22 and the second driven shaft 23 are all provided with bearings 24, and are mounted on the first mounting bracket 34 through the bearings 24.

[0096] The implementation method of Example 10 is as follows:

[0097] A coating machine includes a coating chamber housing 9 and a single-drive double-link electric grid structure as described above connected to the coating chamber housing 9.

[0098] The implementation method of Example 11 is as follows:

[0099] The difference between Embodiment 11 and Embodiment 6 is as follows: The first drive shaft mechanism 2 includes a first main drive shaft 21 connected to the drive assembly 1, and the first grid plate assembly 3 includes a grid plate. The cross-section of the single grid plate corresponds to the cross-section of the first air extraction port of the vacuum chamber. The grid plate is installed on the first main drive shaft 21 by welding or threaded connection. Similarly, the second drive shaft mechanism 4 includes a second main drive shaft connected to the first main drive shaft 21, and the second grid plate assembly 5 includes a grid plate. The cross-section of the single grid plate of the second grid plate assembly 5 corresponds to the cross-section of the second air extraction port of the vacuum chamber. The single grid plate of the second grid plate assembly 5 is installed on the second main drive shaft by welding or threaded connection. When the drive assembly 1 is working normally, the drive assembly 1 drives the first main drive shaft 21 to rotate, and the single grid plate of the first grid plate assembly 3 rotates synchronously with the first main drive shaft 21. At the same time, the first main drive shaft 21 drives the second main drive shaft to rotate synchronously, so that the single grid plate of the second grid plate assembly 5 also rotates synchronously.

[0100] The implementation method of Example Twelve is as follows:

[0101] The difference between Embodiment Twelve and Embodiment Six is ​​that: the first drive shaft mechanism 2 includes a first main drive shaft 21 connected to the drive assembly 1, the first grid plate assembly 3 includes several identical grid pieces, which are installed side by side in the horizontal direction on the first main drive shaft 21, and the total cross-section of the several grid pieces of the first grid plate assembly 3 corresponds to the cross-section of the first air extraction port. Similarly, the second drive shaft mechanism 4 includes a second main drive shaft connected to the first main drive shaft 21, the second grid plate assembly 5 includes several identical grid pieces, which are installed side by side in the horizontal direction on the second main drive shaft. When the drive assembly 1 is working normally, the drive assembly 1 drives the first main drive shaft 21 to rotate, and the several grid pieces of the first grid plate assembly 3 rotate synchronously. At the same time, the first main drive shaft 21 drives the second main drive shaft to rotate synchronously, so that the several grid pieces of the second grid plate assembly 5 also rotate synchronously.

[0102] The implementation method of Example Thirteen is as follows:

[0103] The difference between Embodiment Thirteen and Embodiment Two is that: the end of the first transmission shaft mechanism 2 is provided with a driving gear, and the corresponding end of the second transmission shaft mechanism 4 is provided with a driven gear that meshes with the driving gear. The driving gear and the driven gear have the same number of teeth. When the first transmission shaft mechanism 2 rotates, the driving gear drives the driven gear to rotate synchronously. Since the number of teeth is the same, the rotation speed of the first transmission shaft mechanism 2 and the second transmission shaft mechanism 4 can be kept consistent, thereby achieving synchronous rotation.

[0104] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A single drive dual electrically powered grating structure, characterized by: The device includes a drive assembly (1), a first drive shaft mechanism (2), a first grid plate assembly (3) mounted on the first drive shaft mechanism (2), a second drive shaft mechanism (4), and a second grid plate assembly (5) mounted on the second drive shaft mechanism (4). One end of the first drive shaft mechanism (2) is connected to the drive assembly (1), and the other end is connected to the second drive shaft mechanism (4). Under the drive of the drive assembly (1), the first drive shaft mechanism (2) drives the second drive shaft mechanism (4) to rotate synchronously, so that the first grid plate assembly (3) and the second grid plate assembly (5) rotate synchronously.

2. A single drive dual electric grid structure according to claim 1, characterized in that: A first coupling (6) is provided between the first transmission shaft mechanism (2) and the second transmission shaft mechanism (4).

3. A single drive dual electrically powered grating structure according to claim 1, wherein: A second coupling (7) is provided between the drive assembly (1) and the first transmission shaft mechanism (2).

4. A single drive dual electrically powered grating structure according to claim 3, wherein: The drive assembly (1) includes a servo motor (11), a third coupling (12) connected to the servo motor (11), a support seat (13) located on the outer periphery of the third coupling (12), and a magnetofluid (14) located on the side of the support seat (13) near the second coupling (7).

5. A single drive dual electric grid structure as claimed in claim 1, wherein: The first grating assembly (3) and the second grating assembly (5) have the same structure, and the first drive shaft mechanism (2) and the second drive shaft mechanism (4) have the same structure.

6. A single drive dual electric grid structure according to claim 5, wherein: The first drive shaft mechanism (2) includes a first main drive shaft (21), a first driven shaft (22) and a second driven shaft (23) connected to the drive assembly (1). The first grid plate assembly (3) includes a first grid plate (31) mounted on the first driven shaft (22), a second grid plate (32) mounted on the first main drive shaft (21), and a third grid plate (33) mounted on the second driven shaft (23). A hinge mechanism (8) is provided between the first grid plate (31), the second grid plate (32) and the third grid plate (33).

7. A single drive dual electric grating structure according to claim 6, characterized in that: The hinge mechanism (8) includes a connecting rod (81) arranged in a vertical direction and a connecting rod pin (82). The second grid plate (32) is hinged to the middle position of the connecting rod (81) through the connecting rod pin (82). The first grid plate (31) is hinged to one side of the connecting rod (81) through the connecting rod pin (82). The third grid plate (33) is hinged to the other side of the connecting rod (81) through the connecting rod pin (82).

8. A single drive doublet electric grating structure according to claim 7, characterized in that: The connecting rod (81) is provided in multiple ways, and several of the connecting rods (81) are spaced apart along the length direction of the second grid plate (32).

9. A single drive dual electric grating structure according to claim 6, characterized in that: The first grid plate assembly (3) includes a first mounting bracket (34), and the ends of the first main drive shaft (21), the first driven shaft (22) and the second driven shaft (23) are all provided with bearings (24), and are mounted on the first mounting bracket (34) through the bearings (24).

10. A coating machine characterized by: The coating chamber housing (9) and a single-drive dual-link electric grid structure as described in any one of claims 1-9 connected to the coating chamber housing (9).

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