Multi-wire feeding device

Abstract

The multi-wire feeding device comprises a plurality of wire feeding discs, a plurality of wire feeding pipes and a wire feeding assembly, the wire feeding assembly comprises a driving component and an extrusion wire feeding component, the extrusion wire feeding component is provided with a plurality of wire feeding channels with a plurality of wire feeding speeds, and each wire feeding channel is used for allowing a wire unwound by the corresponding wire feeding disc to penetrate through. Under the action of the driving part, the extrusion wire feeding part enables the multiple wires to be subjected to extrusion force in the corresponding wire feeding channels, and the multiple wires move towards the side close to the corresponding wire feeding pipes so as to enter the evaporation boat through guiding of the wire feeding pipes; according to the utility model, a plurality of wires can be conveyed at different wire feeding speeds, so that the heating evaporation speed is better matched with the wire feeding speed of the wires, and the vacuum coating quality is better.

Description

Technical Field

[0001] This utility model belongs to the field of vapor deposition, and more specifically, it relates to a multi-wire feeding device. Background Technology

[0002] The working principle of vacuum evaporation coating technology is to heat the metal material to be coated under vacuum conditions, causing the metal material to vaporize and evaporate, and then deposit it on the substrate to form a thin film. The metal material is generally fed by a wire feeding device.

[0003] Common existing wire feeding devices generally include a wire feeding reel, a wire feeding assembly, and a wire feeding tube. A single wire for vacuum coating is wound onto the wire feeding reel. The wire feeding assembly includes a drive motor and opposing drive and driven rollers. A wire feeding gap matching the wire size is provided between the drive and driven rollers. The drive motor is connected to the drive roller. The wire is unwound from the wire feeding reel and fed between the drive and driven rollers. Then, the drive motor drives the drive roller to rotate, cooperating with the driven roller to continuously feed the single wire through the wire feeding tube into the evaporation boat for coating. However, this conventional wire feeding device can only feed single wires, resulting in a low wire feeding capacity and thus a low overall evaporation capacity of the evaporation equipment, which cannot meet the demands of high-speed, high-capacity operations. Utility Model Content

[0004] The purpose of this invention is to provide a multi-wire feeding device, which mainly enables the multi-wire feeding device to transport multiple wires at a certain speed ratio.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model proposes a multi-filament feeding device, including multiple filament feeding discs, multiple filament feeding tubes, and a filament feeding assembly. The filament feeding assembly includes a driving component and a compression filament feeding component. The compression filament feeding component has multiple filament feeding channels, each of which allows a filament unwound from the corresponding filament feeding disc to pass through. Under the action of the driving component, the compression filament feeding component causes multiple filaments to be subjected to compression force in the corresponding filament feeding channels and move towards the side closer to the corresponding filament feeding tube, thereby being guided into the evaporation boat by the filament feeding tube.

[0007] Furthermore, the driving component includes a drive motor, a coupling fixed to the drive end of the drive motor, and a transmission shaft with one end connected to the coupling;

[0008] The extrusion and wire feeding component includes multiple coaxially arranged pressure rollers and a wire feeding roller. The wire feeding roller is sleeved on the end of the transmission shaft away from the coupling. The wire feeding roller has multiple steps with different diameters, and each step has a wire feeding groove for cooperating with the corresponding pressure roller to form the wire feeding channel.

[0009] Furthermore, the driving component includes a drive motor and a bevel gear pair fixed to the drive end of the drive motor, the bevel gear pair including a driving bevel gear and a driven bevel gear meshing with each other;

[0010] The extrusion and wire feeding component includes multiple pressure rollers arranged coaxially and multiple wire feeding rollers arranged coaxially with the driven bevel gear. The multiple wire feeding rollers have different diameters, and each wire feeding roller has a wire feeding groove for cooperating with the corresponding pressure roller to form the wire feeding channel.

[0011] Furthermore, the drive motor is fixed on the motor mounting plate, and the motor mounting plate is connected to the angle adjustment component. The angle adjustment component drives the motor mounting plate to rotate to adjust the wire feeding angle of the wire feeding assembly, so that multiple wires fall into the designated area inside the evaporation boat.

[0012] Furthermore, the angle adjustment component includes a bracket and a drive cylinder, with the bottom of the drive cylinder disposed on the bracket;

[0013] One end of the motor mounting plate is rotatably mounted on the bracket, and the end of the motor mounting plate away from the bracket is hinged to the pushing end of the drive cylinder.

[0014] Furthermore, the motor mounting plate is provided with a support component, and a fixed shaft passing through multiple pressure rollers is connected between two rotating plates. One end of each rotating plate is rotatably mounted on the support component, and the other end of each rotating plate is locked on the support component by a corresponding clamping adjustment component.

[0015] Furthermore, each of the clamping adjustment components includes an adjustment handle and a clamping elastic element. The adjustment handle passes through the support component and the corresponding rotating plate, and the clamping elastic element is sleeved on the adjustment handle and located between the support component and the clamping elastic element.

[0016] Furthermore, it also includes multiple straightening mechanisms, each of which is located between the corresponding wire feeding tray and the wire feeding assembly, and each of the straightening mechanisms is used to straighten the shape of the wire before a wire enters the corresponding wire feeding channel.

[0017] Furthermore, each of the regularization mechanisms includes a support plate and two extrusion wheel sets fixed to one side of the support plate. Each extrusion wheel set includes multiple extrusion wheels spaced apart on the support plate, and the extrusion wheels in the two extrusion wheel sets are staggered vertically.

[0018] Furthermore, each of the wire feeding wheels and each pressure wheel adopts a gear structure.

[0019] Compared with the prior art, the wire feeding device proposed in this utility model has at least one of the following beneficial effects:

[0020] 1. It can convey multiple filaments at different feeding speeds, thus improving the matching between heating and evaporation speed and filament feeding speed. This provides continuous and stable process conditions for vacuum coating, resulting in better vacuum coating quality.

[0021] 2. The wire feeding angle of the wire feeding component can be adjusted so that multiple wires fall into the designated area in the evaporation boat. This prevents some areas of the evaporation boat from having too much liquid and some areas from having too little liquid due to large deviations in the wire landing point, thereby improving the uniformity of evaporation and enhancing the coating quality.

[0022] 3. The shape of the wire can be corrected by the straightening mechanism before the wire enters the wire feeding channel, which improves the wire feeding accuracy. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the first type of wire feeding assembly and angle adjustment component assembled in this utility model;

[0025] Figure 2 This is a side view of the first type of wire feeding assembly and angle adjustment component assembled in this utility model.

[0026] Figure 3 This is a cross-sectional view of the first type of wire feeding assembly in this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the second type of wire feeding assembly in this utility model;

[0028] Figure 5 This is a cross-sectional view of the second type of wire feeding assembly in this utility model;

[0029] Figure 6 This is a cross-sectional view of the third type of wire feeding assembly in this utility model;

[0030] Figure 7 This is a three-dimensional structural diagram of the regulating mechanism in this utility model;

[0031] Figure 8 This is a schematic diagram of the main structure of the regulating mechanism in this utility model;

[0032] Figure 9 This is a schematic diagram of the arrangement of the extrusion wheels in the regulating mechanism of this utility model. Figure 1 ;

[0033] Figure 10 This is a schematic diagram of the arrangement of the extrusion wheels in the regulating mechanism of this utility model. Figure 2 ;

[0034] The main markings in the attached figures are as follows:

[0035] 11. Drive motor; 12. Coupling; 13. Transmission shaft; 14. Bevel gear pair;

[0036] 21. Pressure roller; 22. Wire feeding roller;

[0037] 31. Motor mounting plate; 32. Support components;

[0038] 41. Rotating plate; 51. Adjusting handle;

[0039] 61. Bracket; 62. Drive cylinder;

[0040] 71. Support plate; 73. Extrusion roller. Detailed Implementation

[0041] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] The multi-wire feeding device proposed in this utility model includes at least multiple wire feeding discs, multiple wire feeding tubes, and a wire feeding assembly.

[0043] The wire feeding assembly includes a driving component and a pressing wire feeding component. The pressing wire feeding component has multiple wire feeding channels with the same or different wire feeding speeds. Each wire feeding channel allows a wire unwound from the corresponding wire feeding reel to pass through. Under the action of the driving component, the pressing wire feeding component causes multiple wires to be subjected to pressing force in the corresponding wire feeding channel and move towards the side closer to the corresponding wire feeding tube, thereby entering the evaporation boat through the guidance of the wire feeding tube.

[0044] The multi-wire feeding device proposed in this invention can be used to transport multiple filaments, and can also transport multiple filaments at the same or different feeding speeds, so as to achieve better matching between the heating and evaporation rate and the filament feeding speed, providing continuous and stable process conditions for vacuum coating and resulting in better vacuum coating quality. At the same time, the drive component is directly connected to the extrusion and feeding component, which has a compact structure, occupies little space, and is easy to maintain.

[0045] It should be noted that there are various types of specific structures for the wire feeding assembly in multi-wire feeding devices.

[0046] In a first alternative embodiment, the wire feeding assembly includes a driving component and a compression wire feeding component, the compression wire feeding component having multiple wire feeding channels with the same or different wire feeding speeds. Specifically, as... Figure 1 , Figure 2 , Figure 3 As shown, the driving component includes a drive motor 11, a coupling 12 fixed to the drive end of the drive motor 11, and a transmission shaft 13 connected at one end to the coupling 12. The coupling 12 has a three-section structure, with the middle section being an insulator, ensuring insulation between the shafts and preventing the wire from becoming electrified. The extrusion and feeding component includes multiple coaxially arranged pressure rollers 21 and a feeding roller 22. The feeding roller 22 is sleeved on the end of the transmission shaft 13 away from the coupling 12. The feeding roller 22 has multiple steps of the same or different diameters, each step having a feeding groove for cooperating with the corresponding pressure roller 21 to form a feeding channel.

[0047] It should be understood that, in this embodiment, taking the conveying of two filaments as an example, the number of feeding rollers 22 is set to one, and the number of pressure rollers 21 is set to two, with the axes of the feeding rollers 22 and pressure rollers 21 arranged vertically. Furthermore, by changing the diameter ratio of the steps of the two feeding grooves in the feeding rollers 22, the feeding speed ratio of the filaments in the two feeding channels is adjusted, enabling the conveying of two filaments at any speed ratio. Of course, in other optional embodiments, a multi-feeding device can be used to convey more filaments, and the number of steps in the feeding rollers 22 and the number of pressure rollers 21 can be flexibly set according to actual needs.

[0048] In addition, such as Figure 1 , Figure 2 As shown, the drive motor 11 is fixed on the motor mounting plate 31, and the motor mounting plate 31 is provided with a support component 32, which is mainly used to support or fix other components.

[0049] This embodiment allows for adjustable pressure between the wire feeding wheel 22 and the pressure wheel 21. Specifically, fixed shafts passing through multiple pressure wheels 21 are connected between two rotating plates 41. Since the axes of the pressure wheels 21 are vertically oriented, the two rotating plates 41 are vertically spaced apart. One end of each rotating plate 41 is rotatably mounted on the support member 32, and the other end of each rotating plate 41 is locked to the support member 32 by a corresponding clamping adjustment member. Each clamping adjustment member includes an adjustment handle 51 and a clamping elastic element. The adjustment handle 51 passes through the support member 32 and the corresponding rotating plate 41, and the clamping elastic element is sleeved on the adjustment handle 51 and located between the support member 32 and the clamping elastic element. The clamping elastic element can be a spring structure. The adjusting handle 51 is sequentially inserted into the support component 32 and the rotating plate 41 from the side closest to the support component 32, with the head of the adjusting handle 51 exposed. By rotating the adjusting handle 51, the distance between the head of the adjusting handle 51 and the support component 32 is changed, and the elastic force of the clamping elastic element is also changed accordingly, thereby adjusting the squeezing pressure between the feed roller 22 and the pressure roller 21. On the one hand, this allows for quick replacement of the feed roller when the filament is used up; on the other hand, it allows for adjustment of the squeezing pressure between the feed roller 22 and the pressure roller 21 to accommodate filaments of different specifications.

[0050] In a second alternative embodiment, the wire feeding assembly includes a driving component and a compression wire feeding component, the compression wire feeding component having multiple wire feeding channels with different wire feeding speeds. Specifically, as shown... Figure 4 , Figure 5 As shown, the driving component includes a drive motor 11 and a bevel gear pair 14 fixed to the drive end of the drive motor 11. The bevel gear pair 14 includes a driving bevel gear and a driven bevel gear that mesh with each other. The extrusion wire feeding component includes multiple coaxially arranged pressure rollers 21 and multiple wire feeding rollers 22 coaxially arranged with the driven bevel gears. The multiple wire feeding rollers 22 have the same or different diameters, and each wire feeding roller 22 has a wire feeding groove for cooperating with the corresponding pressure roller 21 to form a wire feeding channel.

[0051] It should be understood that this embodiment takes the conveying of two filaments as an example, with two feeding rollers 22 and two pressure rollers 21, and the axes of the feeding rollers 22 and pressure rollers 21 are horizontally aligned. Furthermore, by changing the diameter ratio of the two feeding rollers 22, the feeding speed ratio of the filaments in the two feeding channels can be adjusted, allowing the two filaments to be conveyed at any speed ratio. Of course, in other optional embodiments, a multi-feeding device can be used to convey more filaments, and the number of feeding rollers 22 and pressure rollers 21 can be flexibly set according to actual needs.

[0052] If the pressure roller 21 and the wire feeding roller 22 in the extrusion wire feeding component correspond one-to-one, and each wire feeding roller 22 and each pressure roller 21 adopt a gear structure. For example... Figure 6As shown, the pressure roller 21 adopts a gear structure. This design can improve the clamping force between the two and achieve precise control of the wire feeding amount.

[0053] This embodiment allows for adjustable pressure between the wire feeding roller 22 and the pressure roller 21. Specifically, fixed shafts passing through multiple pressure rollers 21 are connected between two rotating plates 41. Since the axis of the pressure rollers 21 is horizontal, the two rotating plates 41 are arranged laterally at intervals. One end of each rotating plate 41 is rotatably mounted on the support member 32, and the other end of each rotating plate 41 is locked to the support member 32 by a corresponding clamping adjustment member. Each clamping adjustment member includes an adjustment handle 51 and a clamping elastic element. The adjustment handle 51 passes through the support member 32 and the corresponding rotating plate 41, and the clamping elastic element is sleeved on the adjustment handle 51 and located between the support member 32 and the clamping elastic element. The clamping elastic element can be a spring structure. The adjusting handle 51 is sequentially inserted into the support component 32 and the rotating plate 41 from the side closest to the rotating plate 41, with the head of the adjusting handle 51 exposed. By rotating the adjusting handle 51, the distance between the head of the adjusting handle 51 and the rotating plate 41 is changed, and the elastic force of the clamping elastic element is also changed accordingly, thereby adjusting the squeezing pressure between the feeding roller 22 and the pressure roller 21. On the one hand, this allows for quick replacement of the feeding roller when the filament is used up; on the other hand, it allows for adjustment of the squeezing pressure between the feeding roller 22 and the pressure roller 21 to accommodate filaments of different specifications.

[0054] It should be noted that the specific structure of the wire feeding assembly in the multi-wire feeding device is not limited to the two types mentioned above. For example, in the third optional embodiment, the number of wire feeding wheels 22 is less than the number of pressure wheels 21, the wire feeding wheels 22 have steps of different diameters, the wire feeding grooves are set on different steps, and the axes of the wire feeding wheels 22 and the pressure wheels 21 are horizontally arranged. Based on this, the drive component and the extrusion wire feeding component can be adjusted accordingly. As another example, in the fourth optional embodiment, the number of wire feeding wheels 22 is equal to the number of pressure wheels 21, the multiple wire feeding wheels 22 are coaxially arranged, and their radius ratio can be adjusted according to requirements. The wire feeding grooves are set on different wire feeding wheels 22, and the axes of the wire feeding wheels 22 and the pressure wheels 21 are vertically arranged. Based on this, the drive component and the extrusion wire feeding component can be adjusted accordingly.

[0055] Regardless of the specific structure of the wire feeding assembly in the multi-wire feeding device, the multi-wire feeding device may also include angle adjustment components and / or straightening mechanisms, etc.

[0056] To achieve adjustable position of the filaments relative to the evaporation boat, this invention employs a motor mounting plate 31 connected to an angle adjustment component. The angle adjustment component drives the motor mounting plate 31 to rotate, adjusting the filament feeding angle of the filament feeding assembly, thereby ensuring that multiple filaments fall into designated areas within the evaporation boat. By incorporating an angle adjustment component adapted to the filament feeding assembly within the multi-filament feeding device, the filament feeding angle of the filament feeding assembly can be adjusted, allowing multiple filaments to fall into designated areas within the evaporation boat. This prevents significant deviations in filament placement that could lead to uneven liquid distribution in some areas of the evaporation boat, thereby improving the uniformity of evaporation and enhancing the coating quality.

[0057] like Figure 1 , Figure 2 As shown, the angle adjustment component includes a bracket 61 and a drive cylinder 62. The bottom of the drive cylinder 62 is mounted on the bracket 61. One end of the motor mounting plate 31 is rotatably mounted on the bracket 61, and the end of the motor mounting plate 31 away from the bracket 61 is hinged to the pushing end of the drive cylinder 62. This design allows the motor mounting plate 31 to rotate under the push of the drive cylinder 62, thereby adjusting the wire feeding angle of the wire feeding assembly.

[0058] In order to improve the wire feeding accuracy, the wire feeding device of this invention also includes multiple straightening mechanisms. Each straightening mechanism is located between the corresponding wire feeding disc and the wire feeding assembly. Each straightening mechanism is used to correct the shape of the wire before a wire enters the corresponding wire feeding channel.

[0059] like Figure 7 , Figure 8 As shown, each straightening mechanism includes a support plate 71 and two extrusion wheel sets fixed on one side of the support plate 71. Each extrusion wheel set includes multiple extrusion wheels 73 spaced apart on the support plate 71, and the extrusion wheels 73 in the two extrusion wheel sets are staggered vertically.

[0060] It should be noted that the bending diameter of the wire unwound from the wire feeding spool varies (the bending diameter is largest when the spool is full and smallest when the spool is at the bottom). After the wire enters the wire feeding tube, it will collide and rub against the tube wall. Because the bending diameter of the wire is constantly changing, different collision and friction situations will occur, increasing the uncertainty.

[0061] This utility model adopts an additional straightening mechanism. Before the filament enters the filament feeding channel, multiple extrusion rollers 73 in two extrusion roller groups together straighten the shape of the filament, pre-processing the filament into a uniform shape, so that the subsequent filament can move smoothly in the filament feeding tube, making the filament feeding smoother.

[0062] like Figure 9 , Figure 10As shown, the multiple extrusion rollers 73 in each extrusion roller group can be arranged in a straight line or in a non-linear (such as an arc shape) arrangement. The goal is to ensure that the filament enters the wire feeding tube in a consistent shape and posture to achieve smoother wire feeding.

[0063] It should be understood that the wire mentioned in this utility model can be made of metal materials, such as aluminum wire.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-wire feeding device, characterized in that, It includes multiple wire feeding reels, multiple wire feeding tubes, and a wire feeding assembly. The wire feeding assembly includes a driving component and a pressing wire feeding component. The pressing wire feeding component has multiple wire feeding channels, each of which allows a single wire unwound from the corresponding wire feeding reel to pass through. Under the action of the driving component, the pressing wire feeding component causes multiple wires to be subjected to pressing force in the corresponding wire feeding channels and move them towards the side closer to the corresponding wire feeding tube, thereby guiding them into the evaporation boat through the wire feeding tube.

2. The multi-wire feeding device as described in claim 1, characterized in that, The driving component includes a drive motor, a coupling fixed to the drive end of the drive motor, and a transmission shaft with one end connected to the coupling. The extrusion and wire feeding component includes multiple coaxially arranged pressure rollers and a wire feeding roller. The wire feeding roller is sleeved on the end of the transmission shaft away from the coupling. The wire feeding roller has multiple steps with different diameters, and each step has a wire feeding groove for cooperating with the corresponding pressure roller to form the wire feeding channel.

3. The multi-wire feeding device as described in claim 1, characterized in that, The driving component includes a drive motor and a bevel gear pair fixed to the drive end of the drive motor. The bevel gear pair includes a driving bevel gear and a driven bevel gear that mesh with each other. The extrusion and wire feeding component includes multiple pressure rollers arranged coaxially and multiple wire feeding rollers arranged coaxially with the driven bevel gear. The multiple wire feeding rollers have different diameters, and each wire feeding roller has a wire feeding groove for cooperating with the corresponding pressure roller to form the wire feeding channel.

4. The multi-wire feeding device as described in claim 2 or 3, characterized in that, The drive motor is fixed on the motor mounting plate, which is connected to the angle adjustment component. The angle adjustment component drives the motor mounting plate to rotate to adjust the wire feeding angle of the wire feeding assembly, so that multiple wires fall into the designated area inside the evaporation boat.

5. The multi-wire feeding device as described in claim 4, characterized in that, The angle adjustment component includes a bracket and a drive cylinder, with the bottom of the drive cylinder mounted on the bracket. One end of the motor mounting plate is rotatably mounted on the bracket, and the end of the motor mounting plate away from the bracket is hinged to the pushing end of the drive cylinder.

6. The multi-wire feeding device as described in claim 4, characterized in that, The motor mounting plate is provided with a support component, and a fixed shaft passing through multiple pressure rollers is connected between two rotating plates. One end of each rotating plate is rotatably mounted on the support component, and the other end of each rotating plate is locked on the support component by a corresponding clamping adjustment component.

7. The multi-wire feeding device as described in claim 6, characterized in that, Each of the aforementioned clamping adjustment components includes an adjustment handle and a clamping elastic element. The adjustment handle passes through the support component and the corresponding rotating plate, and the clamping elastic element is sleeved on the adjustment handle and located between the support component and the clamping elastic element.

8. The multi-wire feeding device as described in claim 1, characterized in that, It also includes multiple straightening mechanisms, each of which is located between the corresponding wire feeding tray and the wire feeding assembly. Each of the straightening mechanisms is used to straighten the shape of a wire before it enters the corresponding wire feeding channel.

9. The multi-wire feeding device as described in claim 8, characterized in that, Each of the regularization mechanisms includes a support plate and two extrusion wheel sets fixed to one side of the support plate. Each extrusion wheel set includes multiple extrusion wheels spaced apart on the support plate, and the extrusion wheels in the two extrusion wheel sets are staggered vertically.

10. The multi-wire feeding device as described in claim 3, characterized in that, Each of the wire feeding rollers and each pressure roller adopts a gear structure.

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