Wire feeding mechanism for coating machine

Abstract

The utility model discloses a wire feeding mechanism for a coating machine. The wire feeding mechanism comprises a wire feeding disc, a clamping and conveying device and an angle adjusting device, the wire feeding disc is used for providing material wires for the clamping and conveying device, and the clamping and conveying device is used for clamping and conveying the material wires provided by the wire feeding disc to the position above an evaporation boat; the angle adjusting device comprises a first driving piece fixed on the coating machine and a gear disc which is driven by the first driving piece to rotate around the axial direction of the gear disc; the clamping and conveying device is connected to the gear disc, and the clamping and conveying device adjusts the discharging angle of the material wires along with rotation of the gear disc. The angle adjusting device fixed on the coating machine is arranged on one side of the clamping and conveying device, and the first driving piece of the angle adjusting device drives the gear disc to rotate so as to drive the whole clamping and conveying device to rotate, so that the discharging angle of the wire feeding mechanism can be adjusted, and the blanking position of the wire feeding mechanism can be adjusted; and uniform evaporation of the material wires on the evaporation boat is ensured.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating equipment technology, specifically to a wire feeding mechanism for a coating machine. Background Technology

[0002] Vacuum coating machines, as indispensable equipment in modern industry and scientific research, have become a vital force driving the development of materials science and surface engineering due to their wide range of applications and technological advantages. Vacuum coating technology is mainly divided into two categories: physical vapor deposition (PVD) and chemical vapor deposition (CVD). PVD technology includes vacuum evaporation, sputtering, and ion plating, while CVD involves methods of forming thin films on substrate surfaces through chemical reactions.

[0003] Evaporation sources are essential in PVD coating processes, often using filamentous materials such as copper or aluminum wires. These materials are fed into the evaporation boat via a wire feeding mechanism. The wire feeding mechanism is a mechanical device used to transport filaments or strips, ensuring a continuous and uniform delivery of material to the evaporation source for heating and evaporation, thus forming a thin film layer. Typically, a wire feeding mechanism consists of a frame, a feeding turntable, and a clamping device. These components work together, ensuring a stable supply of filamentous material through precise control. The driving and driven wheels are the core components of the wire feeding mechanism; they drive the filament forward through meshing, ensuring the continuity and stability of the feeding process. The driving wheel is usually driven by a motor to maintain a constant speed. During the feeding process, the strip is fed into the guide tube ahead via guide wheels and then into the evaporation boat. However, even with a fixed guide tube, the angle at which the strip exits is fixed. Often, the melting point of the strip needs to be adjusted depending on its hardness, and fixed-position feeding can easily lead to uneven feeding. The existing technology lacks a wire feeding mechanism that can adjust the discharge angle. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the wire feeding mechanism of the coating machine in the prior art cannot adjust the discharge angle, thereby providing a wire feeding mechanism for coating machines.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A wire feeding mechanism for a coating machine includes a wire feeding disc, a clamping device, and an angle adjusting device. The wire feeding disc provides wire to the clamping device, which clamps the wire provided by the wire feeding disc above an evaporation boat. The angle adjusting device includes a first driving member fixed on the coating machine and a gear disk driven by the first driving member to rotate about its own axis. The clamping device is connected to the gear disk, and the clamping device adjusts the output angle of the wire as the gear disk rotates.

[0007] Furthermore, the rotation axis of the gear disk is parallel to the rotation axis of the wire feeding disk.

[0008] Furthermore, the angle adjustment device includes a fixed base fixed on the internal support of the coating machine, and the first driving component is a first drive motor fixed on the fixed base; a worm gear assembly is driven between the first drive motor and the gear disk, the worm of the worm gear assembly is connected to the output end of the first drive motor, and the worm wheel of the worm gear assembly is meshed with the gear disk.

[0009] Furthermore, the gear disk is provided with a concentric shaft located at the center, and the concentric shaft is connected to the coating machine.

[0010] Furthermore, the clamping device includes:

[0011] Mounting bracket, fixed on the concentric shaft;

[0012] The second driving component is fixed on the mounting bracket;

[0013] A transmission wheel is connected to the mounting bracket and is driven to rotate by the second driving component;

[0014] The wire feeding wheel is mounted on the mounting bracket and is connected to the transmission wheel in a driving connection.

[0015] A clamping assembly is located on the side of the wire feeding wheel away from the drive wheel, and is used to clamp the wire onto the wire feeding wheel.

[0016] Furthermore, there are two wire feeding wheels, namely a first wire feeding wheel and a second wire feeding wheel; the clamping assembly includes:

[0017] A first connecting rod is rotatably connected at one end to the mounting bracket, and a first pressing wheel is connected to the first connecting rod and is arranged to rotate with the first connecting rod and correspond to the first wire feeding wheel.

[0018] The second connecting rod is rotatably connected to the mounting bracket at one end, and a second clamping wheel is connected to the second connecting rod and is arranged to rotate with the second connecting rod and correspond to the second wire feeding wheel.

[0019] The mounting bracket is located on the side of the first and second clamping wheels facing away from the wire feeding wheel;

[0020] A first elastic element is elastically disposed between the mounting frame and the first connecting rod. Its elastic force drives the first connecting rod to rotate toward the first wire feeding wheel so that the first pressing wheel and the first wire feeding wheel cooperate to clamp the wire.

[0021] The second elastic element is elastically disposed between the mounting bracket and the second connecting rod. Its elastic force drives the second connecting rod to rotate toward the direction of the second wire feeding wheel so that the second pressing wheel and the second wire feeding wheel cooperate to clamp the wire.

[0022] Furthermore, the mounting bracket is connected to a first adjusting bolt and a second adjusting bolt. The first adjusting bolt is used to adjust the magnitude of the preload elastic force applied by the first elastic element to the first connecting rod, and the second adjusting bolt is used to adjust the magnitude of the preload elastic force applied by the second elastic element to the second connecting rod.

[0023] Furthermore, the mounting bracket is also connected to an outlet guide tube located at the inlet end of the wire feeding wheel, and the end of the outlet guide tube away from the wire feeding wheel is bent toward the angle adjustment device.

[0024] Furthermore, a guide wheel is provided between the wire feeding disc and the clamping device. The guide wheel is used to guide and transport the wire fed by the wire feeding disc to the wire inlet end of the clamping device.

[0025] Furthermore, it also includes a guide wheel frame that is rotatably arranged about an axis, the guide wheel being mounted on the guide wheel frame and rotating synchronously with the guide wheel frame; the rotation axis of the guide wheel frame and the rotation axis of the gear disk.

[0026] The wire feeding mechanism for coating machines provided by this utility model has the following advantages: by setting an angle adjustment device fixed on the coating machine on one side of the clamping device, the first driving component of the angle adjustment device drives the gear disk to rotate, thereby driving the entire clamping device to rotate, so as to realize the adjustment of the discharge angle of the wire feeding mechanism, ensuring that the dropping position of the wire feeding mechanism is adjustable, and ensuring that the wire is evenly evaporated on the evaporation boat. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the wire feeding mechanism for the coating machine in an embodiment of this utility model.

[0029] Explanation of reference numerals in the attached drawings: 1. Wire feeding disc; 2. Clamping device; 21. Mounting bracket; 22. Second driving component; 23. Transmission wheel; 24. First wire feeding wheel; 25. Second wire feeding wheel; 26. Pressing assembly; 261. First connecting rod; 262. First pressing wheel; 263. Second connecting rod; 264. Second pressing wheel; 265. Mounting bracket; 266. First adjusting bolt; 267. Second adjusting bolt; 3. Angle adjusting device; 31. First driving component; 32. Gear disc; 33. Fixed base; 34. Worm gear; 35. Worm wheel; 4. Wire; 5. Wire exit guide tube; 6. Guide wheel; 7. Guide wheel frame. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1The diagram illustrates a wire feeding mechanism for a coating machine. This mechanism is primarily used in vacuum evaporation coating equipment to supply filament 4 to the evaporation source of the equipment. The mechanism includes a wire feeding disc 1, a clamping device 2, and an angle adjustment device 3. The wire feeding disc 1 supplies filament 4 to the clamping device 2, which in turn clamps and feeds the filament 4 from the disc to the evaporation boat (not shown). The angle adjustment device 3 is located on one side of the clamping device 2 and is used to adjust the angle of the clamping device 2, thereby adjusting the feeding angle of the filament 4 at the output end of the clamping device 2.

[0034] In some embodiments, the angle adjustment device 3 is located inside the coating machine; furthermore, the angle adjustment device 3 can be located entirely on the side of the clamping device 2 facing away from the wire feeding disc 1. The angle adjustment device 3 includes a fixed base 33, a first driving member 31, a gear disc 32, and a worm gear assembly; wherein, the fixed base 33 is fixed to the inner wall of the coating machine or to an internal bracket fixed to the inner wall of the coating machine by connecting bolts, the first driving member 31 is specifically a first drive motor fixed to the fixed base 33, and the gear disc 32 is driven by the worm gear assembly and the output end of the first drive motor. The clamping device 2 is connected to the gear disc 32, and the clamping device 2 adjusts the output angle of the wire 4 as the gear disc 32 rotates. In alternative embodiments, the transmission method between the first driving member 31 and the gear disc 32 is not limited to the transmission method of the worm gear assembly; the first driving member 31 and the gear disc 32 can be driven by a chain transmission mechanism, a belt transmission mechanism, or a combination of multiple transmission mechanisms.

[0035] This coating machine uses a wire feeding mechanism. By setting an angle adjustment device 3 fixed inside the coating machine on one side of the clamping device 2, the first driving component 31 drives the gear disk 32 to rotate through the worm gear assembly, thereby driving the entire clamping device 2 to rotate. This allows for the adjustment of the wire feeding mechanism's discharge angle, ensuring that the wire feeding mechanism's dropping position is adjustable and that the wire 4 evaporates evenly on the evaporation boat.

[0036] In some embodiments, the worm 34 of the worm gear assembly is fixedly connected to the output end of the first drive motor, and the worm wheel 35 of the worm gear assembly is meshed with the gear disk 32 for transmission. The rotation axis of the gear disk 32 is parallel to the rotation axis of the wire feeding disk 1; the rotation axis of the worm wheel 35 is also parallel to the rotation axis of the wire feeding disk 1. In an alternative embodiment, a drive gear that rotates synchronously with the worm wheel 35 is fixedly connected to the central shaft of the worm wheel 35, and the drive gear is meshed with the gear disk 32 for transmission.

[0037] In some embodiments, the clamping device 2 is fixedly mounted on the concentric shaft of the gear disk 32 and rotates synchronously with the gear disk 32. The clamping device 2 includes a mounting bracket 21, a second driving member 22, a transmission wheel 23, a wire feeding wheel, and a clamping assembly 26. The mounting bracket 21 is fixed on the concentric shaft of the gear disk 32, the second driving member 22 is fixed on the mounting bracket 21, the transmission wheel 23 is connected to the mounting bracket 21 and driven to rotate by the second driving member 22, the wire feeding wheel is mounted on the mounting bracket 21 and is connected to the transmission wheel 23; the clamping assembly 26 is located on the side of the wire feeding wheel away from the transmission wheel 23, and is used to clamp the wire 4 onto the wire feeding wheel. In the coating machine, the clamping assembly clamps the wire 4 onto the wire feeding wheel, and the wire feeding wheel can stably feed the wire 4 towards the evaporation boat when rotating. The mounting bracket 21 is also connected to an outlet guide tube 5 located at the inlet end of the wire feeding wheel. The end of the outlet guide tube 5 away from the wire feeding wheel is bent in the direction of the deflection angle adjustment device 3. This bent outlet guide tube 5 allows the wire 4 to be shaped within the outlet guide tube 5, making the wire feeding more stable.

[0038] In some embodiments, there are two wire feeding wheels, namely a first wire feeding wheel 24 and a second wire feeding wheel 25. The clamping assembly 26 includes a first connecting rod 261, a first clamping wheel 262, a second connecting rod 263, a second clamping wheel 264, a mounting bracket 265, a first elastic element, and a second elastic element. One end of the first connecting rod 261 is rotatably connected to the mounting bracket 21, and the first clamping wheel 262 is connected to the first connecting rod 261 and rotates with the first connecting rod 261. One end of the second connecting rod 263 is rotatably connected to the mounting bracket 21, and the second clamping wheel 264 is connected to the second connecting rod 263 and rotates with the second connecting rod 263. The mounting bracket 265 is located at the first clamping wheel 262. The first elastic element is elastically disposed between the mounting frame 265 and the first connecting rod 261. The elastic force of the first elastic element drives the first connecting rod 261 to rotate towards the first feeding wheel 24, so that the first pressing wheel 262 and the first feeding wheel 24 cooperate to clamp the wire 4. The second elastic element is elastically disposed between the mounting frame 265 and the second connecting rod 263. The elastic force of the second elastic element drives the second connecting rod 263 to rotate towards the second feeding wheel 25, so that the second pressing wheel 264 and the second feeding wheel 25 cooperate to clamp the wire 4. The clamping device 2 uses two feeding wheels and two pressing wheels to feed the wire 4 through the wire outlet guide tube 5 to the top of the evaporation boat. This can generate two contact points that simultaneously feed the wire 4, so as to maintain the straight feeding of the wire 4. Compared with the traditional single feeding wheel feeding mechanism, the wire feeding is more stable and avoids the problem of unstable wire feeding caused by the rotation of the wire 4 during the feeding process. In an alternative implementation, the first clamping wheel 262 and the second clamping wheel 264 can be clamped by a retractable back bar.

[0039] Furthermore, the mounting bracket 265 is connected to a first adjusting bolt 266 and a second adjusting bolt 267. The first adjusting bolt 266 is used to adjust the magnitude of the preload elastic force applied by the first elastic element to the first connecting rod 261, and the second adjusting bolt 267 is used to adjust the magnitude of the preload elastic force applied by the second elastic element to the second connecting rod 263. This configuration allows for adjustment of the tightness of the first and second elastic elements as needed.

[0040] In some embodiments, a guide wheel 6 is also provided between the wire feeding disc 1 and the clamping device 2. The guide wheel 6 is used to guide the wire 4 fed from the wire feeding disc 1 to the wire feeding end of the clamping device 2. The guide wheel 6 is mounted on a guide wheel frame 7, which is rotatably arranged about an axis. The rotation axis of the guide wheel frame 7 is parallel to the rotation axis of the gear disc 32, and the guide wheel 6 rotates synchronously with the guide wheel frame 7. The guide wheel 6 is located on the side near the wire feeding disc 1 through the guide wheel frame 7. The wire 4 is guided by the guide wheel 6 to be pressed between the wire feeding wheel and the clamping wheel. The wire feeding wheel can feed the wire by rotating. The angle of the guide wheel frame 7 is adjustable. In conjunction with the angle adjustment of the clamping device 2, the wire 4 can be fed to the wire feeding wheel at a preset angle, which facilitates better feeding of the wire 4.

[0041] In summary, the wire feeding mechanism for the coating machine provided by this utility model, by setting an angle adjustment device 3 fixed on the coating machine on one side of the clamping device 2, the first driving component 31 of the angle adjustment device 3 drives the gear disk 32 to rotate, thereby driving the entire clamping device 2 to rotate, thereby realizing the adjustment of the discharge angle of the wire feeding mechanism, ensuring that the dropping position of the wire feeding mechanism is adjustable, and ensuring that the wire 4 evaporates evenly on the evaporation boat.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A wire feeding mechanism for a coating machine, characterized in that, The device includes a wire feeding disc (1), a clamping device (2), and an angle adjusting device (3); the wire feeding disc (1) is used to provide wire (4) to the clamping device (2), and the clamping device (2) is used to clamp the wire (4) provided by the wire feeding disc (1) to the top of the evaporation boat; the angle adjusting device (3) includes a first drive member (31) fixed on the coating machine, and a gear disk (32) driven by the first drive member (31) to rotate around its own axis; the clamping device (2) is connected to the gear disk (32), and the clamping device (2) adjusts the discharge angle of the wire (4) as the gear disk (32) rotates.

2. The wire feeding mechanism for a coating machine according to claim 1, characterized in that, The rotation axis of the gear disk (32) is parallel to the rotation axis of the wire feeding disk (1).

3. The wire feeding mechanism for a coating machine according to any one of claims 1-2, characterized in that, The angle adjustment device (3) includes a fixed base (33) fixed on the internal support of the coating machine. The first driving member (31) is a first driving motor fixed on the fixed base (33). A worm gear assembly is connected between the first driving motor and the gear disk (32). The worm (34) of the worm gear assembly is connected to the output end of the first driving motor. The worm wheel (35) of the worm gear assembly is meshed with the gear disk (32) for transmission.

4. The wire feeding mechanism for a coating machine according to claim 1, characterized in that, The gear disk (32) is provided with a concentric shaft located at the center, and the concentric shaft is connected to the coating machine.

5. The wire feeding mechanism for a coating machine according to claim 4, characterized in that, The clamping device (2) includes: Mounting bracket (21) is fixed on the concentric shaft; The second driving component (22) is fixed on the mounting bracket (21); The transmission wheel (23) is connected to the mounting bracket (21) and is driven to rotate by the second driving member (22); The wire feeding wheel is mounted on the mounting bracket (21) and is connected to the transmission wheel (23) for transmission. The pressing assembly (26) is located on the side of the wire feeding wheel away from the drive wheel (23) and is used to press the wire (4) onto the wire feeding wheel.

6. The wire feeding mechanism for a coating machine according to claim 5, characterized in that, There are two wire feeding wheels, namely a first wire feeding wheel (24) and a second wire feeding wheel (25); the clamping assembly (26) includes: The first connecting rod (261) is rotatably connected at one end to the mounting bracket (21), and a first pressing wheel (262) is connected to the first connecting rod (261) and rotates with the first connecting rod (261) and is corresponding to the first wire feeding wheel (24). The second connecting rod (263) is rotatably connected at one end to the mounting bracket (21), and a second pressing wheel (264) is connected to the second connecting rod (263) and is arranged to rotate with the second connecting rod (263) and correspond to the second wire feeding wheel (25); The mounting bracket (265) is located on the side of the first clamping wheel (262) and the second clamping wheel (264) facing away from the wire feeding wheel; The first elastic element is elastically disposed between the mounting bracket (265) and the first connecting rod (261). Its elastic force drives the first connecting rod (261) to rotate toward the first wire feeding wheel (24) so ​​that the first pressing wheel (262) and the first wire feeding wheel (24) cooperate to clamp the wire (4). The second elastic element is elastically disposed between the mounting bracket (265) and the second connecting rod (263). Its elastic force drives the second connecting rod (263) to rotate toward the second wire feeding wheel (25) so that the second pressing wheel (264) and the second wire feeding wheel (25) cooperate to clamp the wire (4).

7. The wire feeding mechanism for a coating machine according to claim 6, characterized in that, The mounting bracket (265) is connected to a first adjusting bolt (266) and a second adjusting bolt (267). The first adjusting bolt (266) is used to adjust the magnitude of the preload elastic force applied by the first elastic element to the first connecting rod (261), and the second adjusting bolt (267) is used to adjust the magnitude of the preload elastic force applied by the second elastic element to the second connecting rod (263).

8. The wire feeding mechanism for a coating machine according to claim 5, characterized in that, The mounting bracket (21) is also connected to the wire feeding end of the wire feeding wheel, and the wire feeding end of the wire feeding wheel is bent in the direction of the angle adjustment device (3).

9. The wire feeding mechanism for a coating machine according to claim 1, characterized in that, A guide wheel (6) is also provided between the wire feeding disc (1) and the clamping device (2). The guide wheel (6) is used to guide the wire (4) fed out by the wire feeding disc (1) to the wire feeding end of the clamping device (2).

10. The wire feeding mechanism for a coating machine according to claim 9, characterized in that, It also includes a guide wheel frame (7) that is rotatably arranged around an axis, the guide wheel (6) is mounted on the guide wheel frame (7) and rotates synchronously with the guide wheel frame (7); the rotation axis of the guide wheel frame (7) and the rotation axis of the gear disk (32).

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