Wire feeding pipe, wire feeding mechanism and evaporation equipment

Abstract

The utility model belongs to the technical field of coating, and particularly relates to a wire feeding pipe, a wire feeding mechanism and evaporation equipment. The wire feeding pipe comprises a pipe body and a pipe nozzle, the pipe body is provided with a wire inlet end, a first connecting end and a first channel, the pipe nozzle is provided with a wire outlet end, a second connecting end and a second channel, the first connecting end and the second connecting end are fixedly connected with a first mounting part and a second mounting part respectively, and the first mounting part and the second mounting part are detachably connected through a connecting part. And when the first mounting piece is connected with the second mounting piece, the pipe nozzle is jointed with the pipe main body, and the first channel is communicated with the second channel. According to the wire feeding pipe, after the pipe nozzle is damaged, only the pipe nozzle needs to be replaced, the pipe body does not need to be detached, the risk that the assembling precision is reduced due to replacement of the pipe body can be reduced, the connecting piece can play a role in connecting and positioning during connecting operation, the assembling precision of the pipe nozzle and the pipe body is higher, the wire feeding precision of the wire feeding pipe is improved, and the wire feeding efficiency is improved. And the risk of deviation of a wire outlet drop point is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of coating, and particularly relates to a wire feeding tube, a wire feeding mechanism, and an evaporation coating device. Background Art

[0002] The positive current collector of a battery often uses an aluminized film as a carrier. The commonly used coating device is a vacuum coating machine. The vacuum coating machine is provided with a wire feeding mechanism and an evaporation boat. The wire feeding mechanism transports aluminum wire into the evaporation boat. Under the action of the high temperature generated by the evaporation mechanism in the evaporation boat, the aluminum wire is evaporated into a gas state and deposited on the plastic film to obtain an aluminized film.

[0003] Due to the high temperature and long evaporation time in the evaporation area of the evaporation boat, the use loss of the wire feeding tube is relatively large. At the same time, the metal vapor generated by evaporation rises, and the wire feeding tube is prone to blockage due to the condensation of the metal vapor. Therefore, during the operation process, it is necessary to frequently disassemble and replace the wire feeding tube to ensure normal wire feeding. Frequent replacement of the wire feeding tube is likely to cause assembly deviation during the assembly of the wire feeding tube, and it is difficult to guarantee the assembly accuracy, which will affect the wire feeding accuracy of the wire feeding tube, resulting in the deviation of the wire outlet landing point and affecting the normal operation of the evaporation coating device.

[0004] The above statements are only used to provide background technical information related to this application, and do not necessarily constitute prior art. Summary of the Utility Model

[0005] The purpose of the embodiments of this application is to provide a wire feeding tube, a wire feeding mechanism, and an evaporation coating device, including but not limited to solving the technical problem in related technologies that the wire feeding accuracy is reduced due to frequent replacement of the wire feeding tube and poor assembly accuracy of the wire feeding tube.

[0006] The technical solutions adopted in the embodiments of this application are as follows:

[0007] In a first aspect, a wire feeding tube is provided. The wire feeding tube includes:

[0008] A tube main body having a wire inlet end, a first connection end, and a first channel penetrating the wire inlet end and the first connection end;

[0009] A nozzle having a wire outlet end, a second connection end, and a second channel penetrating the second connection end and the wire outlet end;

[0010] A first mounting member fixedly connected to the first connection end;

[0011] A second mounting member fixedly connected to the second connection end; and

[0012] A connecting member detachably connecting the first mounting member and the second mounting member. When the first mounting member and the second mounting member are connected, the first connection end and the second connection end are joined, and the first channel communicates with the second channel.

[0013] In the wire feeding tube according to the embodiment of the present application, a first mounting member is provided on the nozzle and detachably connected to a second mounting member provided on the tube body. After the nozzle is damaged, the first mounting member and the second mounting member are disassembled, and the nozzle can be detached from the tube body and replaced. Only the nozzle is replaced. Compared with replacing the entire wire feeding tube, the tube body does not need to be disassembled. In this way, the risk of reduced assembly accuracy caused by replacing the tube body can be reduced, the service life of the tube body is extended, and the overall cost of the wire feeding tube is reduced. In addition, a connecting member is provided to detachably connect the first mounting member and the second mounting member to realize the disassembly and assembly between the nozzle and the tube body. During the connecting operation, the connecting member can play a role in connecting and positioning, and the assembly accuracy between the nozzle and the tube body is higher, so that the wire feeding accuracy of the wire feeding tube can be improved, and the risk of the wire outlet landing point shifting can be reduced.

[0014] In some embodiments, the first mounting member is provided with a first connecting hole, the second mounting member is provided with a second connecting hole, and the first mounting member and the second mounting member are fixedly connected by a connecting member passing through the first connecting hole and the second connecting hole.

[0015] By adopting the technical solution of this embodiment, the connecting member can install the nozzle to the tube body by passing through the first connecting hole and the second connecting hole, and the operation is simple.

[0016] In some embodiments, the connecting member includes a rod portion, and a first cap portion and a second cap portion provided at opposite ends of the rod portion. The rod portion is adapted to pass through the first connecting hole and the second connecting hole, and the first cap portion and the second cap portion are used to cooperate to clamp the first mounting member and the second mounting member.

[0017] By adopting the technical solution of this embodiment, during use, the rod portion of the connecting member is passed through the first connecting hole and the second connecting hole, and the first cap portion abuts against the second mounting member, and the second cap portion abuts against the first mounting member, so as to clamp the first mounting member and the second mounting member. In this way, the nozzle and the tube body can be joined, and the assembly is simple and the operation is convenient. In addition, the cooperation of the first connecting hole and the second connecting hole can also be used for the connection alignment between the nozzle and the tube body, providing a guarantee for the positioning installation of the nozzle and the tube body.

[0018] In some embodiments, the size of the second connecting hole is larger than the size of the second cap portion and smaller than the size of the first cap portion. The first connecting hole has a large hole end and a small hole end. The size of the large hole end is larger than the size of the second cap portion, and the size of the small hole end is smaller than the size of the second cap portion.

[0019] By adopting the technical solution of this embodiment, during use, after the second cap portion correspondingly passes through the second connection hole, it then passes out from the large hole end of the first connection hole, and then the second cap portion is moved to the small hole end of the first connection hole. Since the size of the second cap portion is larger than the size of the small hole end, the second cap portion cannot pass out from the small hole end, so that the second cap portion can be kept on the side of the first mounting member facing away from the second mounting member. And the size of the first cap portion is larger than the size of the second connection hole. In this way, the first cap portion can be kept on the side of the second mounting member facing away from the first mounting member. Thus, by designing the length dimension of the portion of the rod portion between the first cap portion and the second cap portion to be equal to or slightly smaller than the sum of the thicknesses of the portions of the first mounting member and the second mounting member between the first cap portion and the second cap portion, when the second cap portion moves to the small hole end, the first mounting member and the second mounting member can be gradually clamped, and after the second cap portion moves into the small hole end, the first cap portion is kept in contact with the second mounting member, and the second cap portion is kept in contact with the first mounting member. The first cap portion and the second cap portion cooperate to clamp the first mounting member and the second mounting member, thereby fixedly connecting the first mounting member and the second mounting member.

[0020] In some embodiments, the first connection hole is an arc-shaped hole.

[0021] By adopting the technical solution of this embodiment, the rod body of the connecting member slides along the arc-shaped hole, so that the second cap portion can move between the small hole end and the large hole end. The structure of the first connection hole is simple, and the connection operation of the connecting member is convenient.

[0022] In some embodiments, the connecting member is a one-piece body.

[0023] By adopting the technical solution of this embodiment, the first cap portion and the second cap portion are integrally formed at opposite ends of the rod portion. Compared with a split part, there is no component assembly in the connecting member itself, and thus the risk of the connection accuracy between the nozzle and the pipe body becoming poor due to the poor connection accuracy of the connecting member can be effectively reduced.

[0024] In some embodiments, the first mounting member at least has a first connection portion and a second connection portion respectively provided on opposite sides of the first connection end, the second mounting member at least has a third connection portion and a fourth connection portion respectively provided on opposite sides of the second connection end, the first connection portion and the third connection portion are connected by at least one connecting member, and the second connection portion and the fourth connection portion are connected by at least one connecting member.

[0025] By adopting the technical solution of this embodiment, connectors are respectively arranged on the opposite sides of the pipe body and the nozzle to connect the first mounting member and the second mounting member. A plurality of clamping forces are provided by the connectors arranged along the circumferential direction of the nozzle in the direction perpendicular to the axis of the nozzle. The stability and reliability of the joint connection between the nozzle and the pipe body are higher. In addition, the second mounting member protrudes from the outer wall of the nozzle, and the first mounting member protrudes from the outer wall of the pipe body. Both the first mounting member and the second mounting member can block the transfer of gaseous metal between the wire outlet end and the wire inlet end, reducing the risk of blockage caused by the deposition of gaseous metal at the wire inlet end. At the same time, the first mounting member and the second mounting member double-block heat and can also effectively block the conduction of heat at the evaporation boat.

[0026] In some embodiments, a positioning structure is further provided between the first mounting member and the second mounting member.

[0027] By adopting the technical solution of this embodiment, the positioning structure is provided to perform assembly positioning on the first mounting member and the second mounting member. When connecting the first mounting member and the second mounting member, first use the positioning structure to position the first mounting member and the second mounting member. In this way, the connector can be quickly aligned to the installation position, reducing the risk of relative slippage between the first mounting member and the second mounting member caused by the connection operation during the process of installing the connector, and can further improve the connection accuracy between the first mounting member and the second mounting member, thereby improving the joint accuracy between the nozzle and the pipe body.

[0028] In some embodiments, the positioning structure includes a first magnetic member and a second magnetic member that are magnetically coupled. One of the first mounting member and the second mounting member is provided with the first magnetic member, and the other of the first mounting member and the second mounting member is provided with the second magnetic member.

[0029] By adopting the technical solution of this embodiment, magnetic coupling positioning is used, and the positioning structure is simple and the disassembly and assembly operation of the positioning structure is convenient.

[0030] In some embodiments, the positioning structure includes a positioning hole and a positioning post that are in plug-in fit. One of the first mounting member and the second mounting member is provided with the positioning hole, and the other of the first mounting member and the second mounting member is provided with the positioning post.

[0031] By adopting the technical solution of this embodiment, hole-column plug-in positioning is used, and the positioning structure is simple and the disassembly and assembly operation of the positioning structure is convenient.

[0032] In some embodiments, the first mounting member and the pipe body are an integral part.

[0033] By adopting the technical solution of this embodiment, the first mounting member and the pipe body are integrally formed, and no other structure is required to connect between the first mounting member and the pipe body, which helps to improve the connection accuracy between the pipe body and the nozzle.

[0034] In some embodiments, the second mounting member and the nozzle are an integral part.

[0035] By adopting the technical solution of this embodiment, the second mounting member and the nozzle are integrally formed, and no other structure is required to connect between the second mounting member and the nozzle, which helps to improve the connection accuracy between the pipe body and the nozzle.

[0036] In some embodiments, the first mounting member and the pipe body are an integral part, and the second mounting member and the nozzle are an integral part.

[0037] By adopting the technical solution of this embodiment, the first mounting member and the pipe body are integrally formed, the second mounting member and the nozzle are integrally formed, and no other structure is required to connect between the first mounting member and the pipe body, and between the second mounting member and the nozzle, which helps to improve the connection accuracy between the pipe body and the nozzle.

[0038] In some embodiments, one of the ports of the second connection end and the first connection end is a gradually expanding port, and one of the end faces of the first connection end and the second connection end has an inclined surface adapted to the gradually expanding port. When the first connection end and the second connection end are joined, the inclined surface fits against the inner wall of the gradually expanding port.

[0039] By adopting the technical solution of this embodiment, the nozzle and the pipe body are inserted and joined. The gradually expanding port and the inclined surface are provided for mating docking, which can achieve quick and accurate alignment. During the use of the wire feeding pipe, the inclined surface fits against the inner wall of the gradually expanding port, and the gradually expanding port can also play a role in restricting the movement of the inclined surface, reducing the risk of misalignment between the nozzle and the pipe body, and having higher connection reliability.

[0040] In some embodiments, the port of the wire feeding end is a gradually expanding port.

[0041] By adopting the technical solution of this embodiment, the gradually expanding port forms a flared structure, so that the inlet of the first channel has a larger radial dimension and the wire inlet has a larger wire inlet dimension.

[0042] In some embodiments, the port of the wire feeding end is provided with an arc-shaped inner chamfer.

[0043] By adopting the technical solution of this embodiment, an arc-shaped inner chamfer is provided at the port of the wire feeding end. When the wire is fed into the wire feeding pipe, it contacts the arc-shaped surface, and there is no sharp corner structure at the port of the wire feeding end, which can effectively reduce the wear of the wire.

[0044] In some embodiments, along the direction perpendicular to the pipe axis of the nozzle, the lengths of the pipe walls of the nozzle on the opposite sides of the pipe axis are not equal.

[0045] By adopting the technical solution of this embodiment, along the direction perpendicular to the tube axis, the lengths of the tube walls of the nozzle on the opposite sides of the tube axis are unequal. In actual design, when the tube wall on the side of the nozzle close to the evaporation boat is longer, this longer part of the tube wall can effectively block the gaseous metal from entering the wire outlet end, reduce the probability of film deposition at the port of the wire outlet end, help improve the blockage condition of the wire outlet end of the wire feeding tube, and extend the service life of the nozzle. When the tube wall on the side of the nozzle far from the evaporation boat is set longer, then this longer part of the tube wall can better guide the bent wire to accurately fall into the wire feeding point of the evaporation boat, improving the wire feeding accuracy.

[0046] In some embodiments, both the first channel and the second channel are arc-shaped channels. When the first channel communicates with the second channel, the corresponding circles of the center lines of the first channel and the second channel have equal radii and are concentric.

[0047] By adopting the technical solution of this embodiment, the first channel and the second channel for conveying the wire are set as arc-shaped channels. Since the wire to be conveyed is bent after being released from the wire feeding tray, the shape of the arc-shaped channel has a higher degree of fit with the shape of the bent wire, thereby reducing the friction force suffered by the wire during conveyance, reducing the wear of the channel walls of the first channel and the second channel by the wire, and extending the service life of the tube body and the nozzle.

[0048] In some embodiments, an installation seat is provided at the wire inlet end, and the installation seat is used to be installed on the installation table of the wire feeding mechanism.

[0049] By adopting the technical solution of this embodiment, the wire feeding tube is fixed to the installation table of the wire feeding mechanism through the installation seat to improve the installation stability of the wire feeding tube.

[0050] In some embodiments, a baffle is further provided outside the tube body, and the baffle is located on the side of the installation seat facing the nozzle.

[0051] By adopting the technical solution of this embodiment, the baffle protrudes from the outer wall of the tube body and is located between the installation seat and the first connection end. The baffle can effectively block the transmission of gaseous metal, reduce the risk of gaseous metal deposition on the installation seat affecting the disassembly and assembly of the installation seat and deposition at the wire inlet end affecting the normal conveyance of the wire. At the same time, the baffle can also block heat and effectively block the heat conduction from the evaporation boat.

[0052] In some embodiments, a part of the baffle is bent towards the nozzle.

[0053] By adopting the technical solution of this embodiment, the blocking effect of the baffle on gaseous metal can be further improved.

[0054] In a second aspect, a wire feeding mechanism is provided, including the wire feeding tube as described in the above embodiments.

[0055] In the wire feeding mechanism according to the embodiment of the present application, by using the above-mentioned wire feeding tube, when the nozzle of the wire feeding tube is damaged, only the nozzle needs to be replaced, and the tube body does not need to be disassembled, reducing the risk of reduced assembly accuracy caused by replacing the tube body. In addition, when replacing the nozzle, the connecting piece can play a role in connecting and positioning, ensuring higher assembly accuracy between the nozzle and the tube body, higher connection stability and reliability between the nozzle and the tube body, reducing the risk of the nozzle loosening during use, and reducing the risk of the wire feeding point shifting due to the loosening of the nozzle. The wire feeding mechanism has higher wire feeding accuracy.

[0056] In a third aspect, a vapor deposition apparatus is provided, including the wire feeding mechanism as described in the above embodiment.

[0057] In the vapor deposition apparatus according to the embodiment of the present application, by using the above-mentioned wire feeding mechanism, the wire feeding accuracy of the wire feeding mechanism is improved, which helps to improve the vapor deposition effect of the vapor deposition apparatus and improve the coating quality.

[0058] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. Description of the Drawings

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0060] Figure 1 A perspective view of a wire feeding tube provided for some embodiments of the present application;

[0061] Figure 2 For Figure 1 Another perspective view of the wire feeding tube shown;

[0062] Figure 3 For Figure 1 A sectional view of the wire feeding tube shown;

[0063] Figure 4 For Figure 3 An enlarged view of a layout of the sectional view of the wire feeding tube shown;

[0064] Figure 5 For Figure 3 An enlarged view of the part at A in

[0065] Figure 6 ForFigure 1 Schematic structural diagram of the first mounting member of the wire feeding tube shown, with a first magnetic member mounted thereon;

[0066] Figure 7 For Figure 1 Schematic structural diagram of the second mounting member of the wire feeding tube shown, with a second magnetic member mounted thereon;

[0067] Figure 8 For Figure 3 Enlarged view of location B in [[ ]];

[0068] Figure 9 For Figure 3 Enlarged view of another layout of the sectional view of the wire feeding tube shown;

[0069] Figure 10 For Figure 9 Enlarged view of location C in [[ ]].

[0070] Among them, each reference numeral in the figure:

[0071] 10, tube body; 11, wire inlet end; 111, arc-shaped inner chamfer; 112, mounting seat; 12, first connection end; 121, inclined surface; 13, first channel; 14, baffle;

[0072] 20, nozzle; 21, wire outlet end; 22, second connection end; 221, inner chamfer; 23, second channel;

[0073] 30, first mounting member; 31, first connection hole; 311, large hole end; 312, small hole end; 32, first connection portion; 33, second connection portion; 34, first through hole;

[0074] 40, second mounting member; 41, second connection hole; 42, third connection portion; 43, fourth connection portion; 44, second through hole;

[0075] 50, connecting member; 51, rod portion; 52, first cap portion; 53, second cap portion;

[0076] 60, positioning structure; 61, first magnetic member; 62, second magnetic member. Detailed implementation manners

[0077] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further describes this application in detail with reference to the attached Figures 1 to 10 drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0079] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0080] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least some embodiments of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments in any suitable manner.

[0081] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0082] In the description of the embodiments of this application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces). The meaning of "several" is one or more, unless otherwise specifically defined.

[0083] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the embodiments of this application.

[0084] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0085] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0086] A battery cell is the smallest electric energy storage unit. Among them, the current collector is a basic component of the battery cell, and its performance plays a crucial role in the performance of the battery cell. In the related art, the current collector of the battery cell is mainly composed of metal foils such as aluminum foils or copper foils, etc. The metal foils have the advantage of good electrical conductivity, but due to the inherent properties of metals, the metal foils are prone to bending and tearing, resulting in a decrease in the performance of the battery cell and a reduction in the reliability of the use of the battery cell.

[0087] To optimize the performance such as the energy density and safety of the battery cell, a coated current collector composed of a metal foil and a polymer film (or polymer layer) has been gradually developed, and a vacuum coating machine is commonly used in the production of the coated current collector. The vacuum coating machine uses vacuum evaporation technology for coating. Among them, vacuum evaporation is a production process for depositing metals on the surface of an object. Its main principle is: placing the material to be evaporated on the evaporation boat, and then heating the evaporation boat, so that the material to be evaporated placed on the evaporation boat melts and vaporizes. The melted and vaporized material is deposited on the object passing above in the form of atoms or atomic groups under vacuum conditions, so as to form a thin film on the object. For example, for an aluminized film, high-purity aluminum wire needs to be evaporated into a gaseous state at a high temperature (close to 1000 degrees Celsius) through a vacuum aluminizing process, and then the plastic film is passed through the vacuum evaporation chamber, so that the gaseous aluminum molecules precipitate and adhere to the surface of the plastic film to form a soft packaging material with a bright and beautiful appearance and a strong metallic color.

[0088] A vacuum coating machine suitable for the production of aluminized films generally includes a wire feeding mechanism and an evaporation device such as an evaporation boat. The wire feeding mechanism generally includes a wire winding disc, a pressure wheel wire feeding motor, and a wire feeding tube. The aluminum wire comes out of the wire winding disc, enters the wire feeding tube through the pressure wheel wire feeding motor, and then reaches the evaporation boat after being conveyed through the wire feeding tube.

[0089] Since the temperature of the evaporation area of the evaporation boat is extremely high and the evaporation time is long, the wear of the wire feeding tube is relatively large. In addition, during the evaporation of the metal wire, the metal vapor will cover the surface of the wire feeding tube during the evaporation process, resulting in the deposition of metal on the inner surface of the wire feeding tube. In particular, as the metal vapor generated by evaporation rises, the nozzle position of the wire feeding tube close to the evaporation boat is prone to blockage due to the condensation of the metal vapor. Therefore, during the operation process, it is basically necessary to disassemble and replace the wire feeding tube each time to ensure normal wire feeding.

[0090] In the related art, in order to reduce the replacement cost and improve the replacement efficiency, the wire feeding tube is often connected by screwing the nozzle to the tube body. When replacing, rotate and unscrew the nozzle to be replaced to separate it from the tube body, and then connect the new nozzle to the tube body. Since the threaded connection is easily affected by external force operations (such as wrenches, etc.), the connection tightness may vary during installation. Moreover, when the wire feeding tube is used in a high-temperature scenario, the thread is prone to deformation, resulting in the loosening and displacement of the nozzle. These two situations will both lead to a deterioration of the assembly accuracy of the nozzle, thereby affecting the wire feeding accuracy and causing the wire outlet landing point to shift, affecting the normal operation of the evaporation equipment.

[0091] Based on this, the embodiment of the present application provides a wire feeding tube. By detachably connecting a first mounting member provided on the nozzle to a second mounting member provided on the tube body, after the nozzle is damaged, the first mounting member and the second mounting member can be disassembled, and the nozzle can be disassembled and replaced. The tube body does not need to be disassembled, which can reduce the risk of reduced assembly accuracy caused by replacing the tube body. Moreover, when connecting the nozzle and the tube body, the connecting member can play a role in connecting and positioning, and the assembly accuracy of the nozzle and the tube body is more guaranteed. The nozzle and the tube body have high connection stability and reliability, thereby improving the wire feeding accuracy of the wire feeding tube and reducing the risk of the wire outlet landing point shifting due to the loosening of the nozzle.

[0092] Among them, the wire feeding tube of the present application includes but is not limited to being applied in evaporation equipment for transporting various metal wires including aluminum wires.

[0093] Hereinafter, Figures 1 to 10 in conjunction with the accompanying

[0094] In the embodiment of the present application, as Figures 1 to 3As shown, the wire feeding tube includes a tube body 10, a nozzle 20, a first mounting member 30, a second mounting member 40, and a connecting member 50. The tube body 10 has a wire inlet end 11, a first connection end 12, and a first channel 13 penetrating through the wire inlet end 11 and the first connection end 12. The nozzle 20 has a wire outlet end 21, a second connection end 22, and a second channel 23 penetrating through the second connection end 22 and the wire outlet end 21. The first mounting member 30 is fixedly connected to the first connection end 12, the second mounting member 40 is fixedly connected to the second connection end 22, and the first mounting member 30 and the second mounting member 40 are detachably connected by the connecting member 50. Among them, when the first mounting member 30 and the second mounting member 40 are connected, the first connection end 12 is joined to the second connection end 22, and the first channel 13 is communicated with the second channel 23.

[0095] In this embodiment, the tube body 10 is the main structure of the wire feeding tube for inputting and conveying the metal wire, the nozzle 20 is the structure for outputting the metal wire, and the length of the first channel 13 is longer than that of the second channel 23. When conveying the metal wire, the metal wire to be conveyed enters the tube body 10 from the wire inlet end 11, and then is conveyed through the first channel 13 and output from the first connection end 12. The second connection end 22 of the nozzle 20 is joined to the first connection end 12 of the tube body 10. After the metal wire is output from the first channel 13, it enters the second channel 23, and then is conveyed along the second channel 23 to the wire outlet end 21, and finally is sent out from the wire outlet end 21 and enters the evaporation boat.

[0096] In this embodiment, a wire feeding tray is provided upstream of the wire feeding tube, and an evaporation boat is provided downstream of the wire feeding tube. The wire feeding tray is used to feed the metal wire into the wire feeding tube. The wire enters the first channel 13 from the wire inlet end 11 of the tube body 10, then enters the communicated second channel 23 from the first channel 13, and finally is output from the wire outlet end 21. The output metal wire falls into the wire feeding landing point of the evaporation boat. After the metal wire enters the evaporation boat, evaporation plating is carried out. The evaporation boat evaporates the metal wire into a gaseous state under high temperature conditions so that it is deposited on the workpiece to be processed. Among them, the wire includes but is not limited to aluminum wire, copper wire, steel wire or other metal materials, and the workpiece to be processed includes but is not limited to plastic film, metal film or rubber film, etc.

[0097] It should be noted that in a specific embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the tube body 10 has a wire inlet end 11. The opening of the wire inlet end 11 is for the metal wire to enter the tube body 10. The tube body 10 has a first connection end 12. The opening of the first connection end 12 is for the metal wire to exit the tube body 10. The first channel 13 connects the wire inlet end 11 and the first connection end 12. The metal wire enters the first channel 13 from the wire inlet end 11 and is conveyed along the first channel 13 to exit the tube body 10 from the first connection end 12. The nozzle 20 has a second connection end 22. The second connection end 22 is used to engage with the first connection end 12 of the tube body 10. The metal wire exiting the tube body 10 enters the nozzle 20 through the second connection end 22. The nozzle 20 has a second channel 23 and a wire outlet end 21. The second channel 23 connects the second connection end 22 and the wire outlet end 21. The metal wire enters the second channel 23 from the second connection end 22 and is conveyed along the second channel 23 to exit from the wire outlet end 21.

[0098] Here, it can be understood that the first mounting member 30 being fixedly connected to the first connection end 12 means that the first mounting member 30 is fixedly connected to the outer wall of the first connection end 12. The first mounting member 30 is provided with a first through hole 34 for the tube body 10 to fit through. The first connection end 12 passes through the first through hole 34, as Figure 1 and Figure 2 shown. The second mounting member 40 is fixedly connected to the second connection end 22. The second mounting member 40 is fixedly connected to the outer wall of the second connection end 22. The second mounting member 40 is provided with a second through hole 44 for the nozzle 20 to fit through. The second connection end 22 passes through the second through hole 44, as Figure 1 and Figure 2 shown.

[0099] The first connection end 12 engaging with the second connection end 22 means that the first connection end 12 is docked with the second connection end 22. For example, the end face of the first connection end 12 is in abutting connection with the end face of the second connection end 22, or the first connection end 12 and the second connection end 22 are in socket connection, so that the first channel 13 is in communication with the second channel 23.

[0100] For the wire feeding tube according to the embodiment of the present application, since the nozzle 20 is the part of the entire wire feeding tube closest to the evaporation boat, the nozzle 20 is most likely to be damaged during the evaporation coating process. Thus, a first mounting member 30 is provided on the nozzle 20 and detachably connected to a second mounting member 40 provided on the tube body 10. After the nozzle 20 is damaged, the first mounting member 30 and the second mounting member 40 are disassembled, and the nozzle 20 can be detached from the tube body 10 and replaced. Only the nozzle 20 is replaced. Compared with replacing the entire wire feeding tube, the tube body 10 does not need to be disassembled. In this way, the risk of reduced assembly accuracy caused by replacing the tube body can be reduced. Moreover, since the tube body 10 does not need to be replaced, its service life is extended, and the overall cost of the wire feeding tube is reduced. In addition, compared with directly providing a connection structure at the connection port between the nozzle 20 and the tube body 10, such as a threaded connection structure or a clamping connection structure, etc., a connecting member 50 is provided to connect the first mounting member 30 and the second mounting member 40 to achieve the disassembly and assembly between the nozzle 20 and the tube body 10. The reliability and stability of the connection are higher, and the risk of the nozzle 20 loosening during use is effectively reduced. Moreover, during the connection operation, the connecting member 50 can play a role in connection positioning, and the assembly accuracy between the nozzle 20 and the tube body 10 is higher. In this way, the wire feeding accuracy of the wire feeding tube can be better improved, and the risk of the wire outlet landing point shifting can be reduced.

[0101] In some embodiments, as Figures 1 to 4 shown, both the first channel 13 and the second channel 23 are arc-shaped channels. When the first channel 13 communicates with the second channel 23, the corresponding circles of the centerlines of the first channel 13 and the second channel 23 have equal radii and are concentric. By setting the first channel 13 and the second channel 23 for conveying the metal wire as arc-shaped channels, since the metal wire to be conveyed is bent after being released from the wire feeding tray, the shape of the arc-shaped channel has a higher degree of fit with the shape of the bent metal wire. Thus, the friction force suffered by the metal wire during conveyance can be reduced, the wear of the channel walls of the first channel 13 and the second channel 23 by the metal wire can be reduced, and the service life of the tube body 10 and the nozzle 20 can be extended.

[0102] In a specific embodiment, the radii of the corresponding circles of the centerlines of the first channel 13 and the second channel 23 are 260 mm to 300 mm. Exemplarily, the radius of the corresponding circle of the centerline of the first channel 13 can be 260 mm, 265 mm, 270 mm, 275 mm, 280 mm, 285 mm, 290 mm, 295 mm or 300 mm, etc. On the premise of satisfying that the radii of the corresponding circles of the centerlines of the first channel 13 and the second channel 23 are equal and concentric, the radius of the corresponding circle of the centerline of the second channel 23 can be 260 mm, 265 mm, 270 mm, 275 mm, 280 mm, 285 mm, 290 mm, 295 mm or 300 mm, etc.

[0103] In a specific embodiment, such as Figures 1 to 4 shown, both the pipe body 10 and the nozzle 20 are arc-shaped pipes, or both the pipe body 10 and the nozzle 20 can also be square pipes.

[0104] In some embodiments, the first mounting member 30 and the pipe body 10 are integral parts, and / or the second mounting member 40 and the nozzle 20 are integral parts.

[0105] In a specific embodiment, the first mounting member 30 and the pipe body 10 are integral parts. The first mounting member 30 and the pipe body 10 are integrally formed, and no other structure is required to connect between the first mounting member 30 and the pipe body 10, which helps to improve the connection accuracy between the pipe body 10 and the nozzle 20.

[0106] In other embodiments, the second mounting member 40 and the nozzle 20 are integral parts. The second mounting member 40 and the nozzle 20 are integrally formed, and no other structure is required to connect between the second mounting member 40 and the nozzle 20, which helps to improve the connection accuracy between the pipe body 10 and the nozzle 20.

[0107] In other embodiments, the first mounting member 30 and the pipe body 10 are integral parts, and the second mounting member 40 and the nozzle 20 are integral parts. In this way, the first mounting member 30 and the pipe body 10 are integrally formed, the second mounting member 40 and the nozzle 20 are integrally formed, and no other structure is required to connect between the first mounting member 30 and the pipe body 10, and between the second mounting member 40 and the nozzle 20, which helps to improve the connection accuracy between the pipe body 10 and the nozzle 20.

[0108] It can be understood that the first mounting member 30 and the pipe body 10 being integrally formed means that the first connecting member and the pipe body 10 can be integrally formed by processes such as casting, stamping, forging, etc., or the first mounting member 30 can also be integrally connected to the pipe body 10 in forms such as welding. The second mounting member 40 and the nozzle 20 being integrally formed means that the second mounting member 40 and the nozzle 20 can be integrally formed by processes such as casting, stamping, forging, etc., or the second mounting member 40 can also be integrally connected to the nozzle 20 in forms such as welding.

[0109] Of course, different from the above embodiments, in other embodiments, the first mounting member 30 and the pipe body 10 can also be separate parts. For example, the first mounting member 30 and the pipe body 10 can be connected in forms such as screwing, clamping, interference fit connection, etc. The second mounting member 40 and the nozzle 20 can also be separate parts. For example, the second mounting member 40 and the nozzle 20 can be connected in forms such as screwing, clamping, interference fit connection, etc.

[0110] In some embodiments, such as Figure 1 and Figure 4As shown, along the direction of the pipe axis of the nozzle 20, the lengths of the pipe walls of the nozzle 20 on the opposite sides of the pipe axis are not equal.

[0111] Among them, the pipe walls of the nozzle 20 on the opposite sides of the pipe axis mean that when using the wire feeding pipe of this embodiment, taking the evaporation boat as a reference object, there is a side of the pipe axis close to the evaporation boat and a relative side far from the evaporation boat. The unequal lengths of the pipe walls of the nozzle 20 on the opposite sides of the pipe axis mean that the length of the pipe wall on the side of the nozzle 20 close to the evaporation boat is not equal to the length of the pipe wall on the side far from the evaporation boat.

[0112] In a specific embodiment, the length of the pipe wall on the side of the nozzle 20 close to the evaporation boat can be set to be longer than that of the opposite side, or the length of the pipe wall on the side of the nozzle 20 far from the evaporation boat can also be set to be longer than that of the opposite side. Among them, when the length of the pipe wall on the side of the nozzle 20 close to the evaporation boat is longer, this part of the longer pipe wall can effectively block the gaseous metal from entering the wire outlet end 21, reduce the probability of film deposition at the port of the wire outlet end 21, help improve the blockage condition of the wire outlet end 21 of the wire feeding pipe, and extend the service life of the nozzle 20. When the pipe wall on the side of the nozzle 20 far from the evaporation boat is set to be longer, this part of the longer pipe wall can better guide the bent metal wire to accurately fall into the wire feeding point of the evaporation boat, improving the wire feeding accuracy.

[0113] In some embodiments, such as Figure 1 、 Figure 3 and Figure 4 As shown, the first mounting member 30 is provided with a first connection hole 31, the second mounting member 40 is provided with a second connection hole 41, and the first mounting member 30 and the second mounting member 40 are fixedly connected by a connecting member 50 passing through the first connection hole 31 and the second connection hole 41.

[0114] In this embodiment, when connecting the nozzle 20 and the pipe body 10, it is only necessary to correspondingly pass the connecting member 50 through the first connection hole 31 and the second connection hole 41 and then connect the first mounting member 30 and the second mounting member 40. The connection structure is simple, the connection operation is convenient, and the practicability is strong.

[0115] It can be understood that in a specific embodiment, the connecting member 50 can use fasteners such as screws and bolts. Or, the connecting member 50 can also be a specific structural member. As follows, an example of a connecting member 50 will be described.

[0116] Exemplarily, in some embodiments, such as Figures 4 to 7As shown, the connecting member 50 includes a rod portion 51, and a first cap portion 52 and a second cap portion 53 provided at opposite ends of the rod portion 51. The rod portion 51 is adapted to penetrate through the first connection hole 31 and the second connection hole 41, and the first cap portion 52 and the second cap portion 53 are used to cooperate to clamp the first mounting member 30 and the second mounting member 40.

[0117] Among them, it should be noted that, as Figure 5 shown, the cap portion of the connecting member 50 (including the first cap portion 52 and the second cap portion 53) refers to the cap-shaped structure provided on the rod portion 51. When it is provided on the rod portion 51, the cap portion can protrude radially relative to the rod portion 51. The rod portion 51 of the connecting member 50 is the part that can penetrate through the first connection hole 31 and the second connection hole 41, and its length can be adapted to the hole depths of the first connection hole 31 and the second connection hole 41 to ensure that the connecting member 50 can penetrate through the first connection hole 31 and the second connection hole 41.

[0118] In this embodiment, when using the connecting member 50 to connect the first mounting member 30 and the second mounting member 40, the rod portion 51 of the connecting member 50 is passed through the first connection hole 31 and the second connection hole 41, and the first cap portion 52 is abutted against the second mounting member 40, and the second cap portion 53 is abutted against the first mounting member 30, so as to clamp the first mounting member 30 and the second mounting member 40. In this way, the nozzle 20 can be installed on the pipe body 10, and the assembly is simple and the operation is convenient. In addition, the cooperation of the first connection hole 31 and the second connection hole 41 can also be used for the connection alignment of the nozzle 20 and the pipe body 10, providing a guarantee for the positioning installation of the nozzle 20 and the pipe body 10.

[0119] In some embodiments, as Figures 4 to 7 shown, the size of the second connection hole 41 is larger than the size of the second cap portion 53 and smaller than the size of the first cap portion 52. The first connection hole 31 has a large hole end 311 and a small hole end 312. The size of the large hole end 311 is larger than the size of the second cap portion 53, and the size of the small hole end 312 is smaller than the size of the second cap portion 53.

[0120] It can be understood that the size of the second connection hole 41 being larger than the size of the second cap portion 53 and smaller than the size of the first cap portion 52 means that the second cap portion 53 can pass through the second connection hole 41, while the first cap portion 52 cannot pass through the first connection hole 31 having a large hole end 311 and a small hole end 312 means that the first connection hole 31 is a strip-shaped long hole, with the size of one end of the strip-shaped long hole being smaller than that of the other end. The small-size end forms the small hole end 312, and the large-size end forms the large hole end 311. The size at the middle position where the small hole end 312 and the large hole end 311 are connected and transitioned is equivalent to the size of the small hole end 312, or can be slightly larger than the size of the small hole end 312 but must be smaller than the size of the large hole end 311. The size of the large hole end 311 is larger than the size of the second cap portion 53, and the size of the small hole end 312 is smaller than the size of the second cap portion 53 means that the second cap portion 53 can pass through the large hole end 311 but cannot pass through the small hole end 312.

[0121] In this embodiment, when using the connecting member 50 to connect the first mounting member 30 and the second mounting member 40, after the second cap portion 53 correspondingly passes through the second connection hole 41, it then passes out from the large hole end 311 of the first connection hole 31. Then, the connecting member 50 is moved to make the second cap portion 53 move to the small hole end 312 of the first connection hole 31. At this time, since the size of the second cap portion 53 is larger than the size of the small hole end 312, the second cap portion 53 cannot pass out from the small hole end 312, so that the second cap portion 53 can be kept on the side of the first mounting member 30 facing away from the second mounting member 40. And the size of the first cap portion 52 is larger than the size of the second connection hole 41. In this way, the first cap portion 52 can be kept on the side of the second mounting member 40 facing away from the first mounting member 30. Thus, by designing the length dimension of the part of the rod portion 51 located between the first cap portion 52 and the second cap portion 53 to be equal to or slightly smaller than the sum of the thicknesses of the parts of the first mounting member 30 and the second mounting member 40 located between the first cap portion 52 and the second cap portion 53, when the second cap portion 53 moves to the small hole end 312, the first mounting member 30 and the second mounting member 40 can be gradually clamped. After the second cap portion 53 slides into the small hole end 312, the first cap portion 52 is kept in contact with the second mounting member 40, and the second cap portion 53 is kept in contact with the first mounting member 30. The first cap portion 52 and the second cap portion 53 cooperate to clamp the first mounting member 30 and the second mounting member 40, thereby fixedly connecting the first mounting member 30 and the second mounting member 40.

[0122] Thus, when connecting the first mounting member 30 and the second mounting member 40, after the second cap portion 53 correspondingly passes through the second connection hole 41, it then passes out from the large hole end 311 of the first connection hole 31. Then, the connecting member 50 is slid to move the second cap portion 53 to the small hole end 312 of the first connection hole 31. The first cap portion 52 abuts against the second mounting member 40, and the second cap portion 53 abuts against the first mounting member 30. The first cap portion 52 and the second cap portion 53 cooperate to clamp the first mounting member 30 and the second mounting member 40, and thus the nozzle 20 can be connected to the pipe body 10, with simple assembly and convenient operation. In addition, the cooperation between the small hole end 312 of the first connection hole 31 and the second connection hole 41 can also be used for the connection alignment of the nozzle 20 and the pipe body 10, providing a guarantee for the positioning and installation of the nozzle 20 and the pipe body 10.

[0123] In some embodiments, the first connection hole 31 is an arc-shaped hole. By rotating the rod portion 51 of the connecting member 50 along the arc-shaped hole, the second cap portion 53 can be moved between the small hole end 312 and the large hole end 311. The structure of the first connection hole 31 is simple, and the connection operation of the connecting member 50 is convenient.

[0124] In some embodiments, the connecting member 50 is an integral part. The first cap portion 52 and the second cap portion 53 are integrally formed at opposite ends of the rod portion 51. Compared with a split part, there is no part assembly for the connecting member 50 itself, and thus the risk of the connection accuracy between the nozzle 20 and the pipe body 10 deteriorating due to poor connection accuracy of the connecting member 50 can be effectively reduced.

[0125] It can be understood that the connecting member 50 can be integrally formed by processes such as casting, stamping, and forging.

[0126] Of course, in other embodiments, the connecting member 50 can also be a split part. For example, the first cap portion 52 or the second cap portion 53 can be detachably connected to the rod portion 51, or the first cap portion 52 and the second cap portion 53 can be detachably connected to the rod portion 51 at the same time. Among them, the specific form of the detachable connection can be screw connection, snap connection, interference fit connection, etc.

[0127] In some embodiments, as Figures 3 to 7 shown, the first mounting member 30 at least has a first connection portion 32 and a second connection portion 33 respectively disposed on opposite sides of the first connection end 12, and the second mounting member 40 at least has a third connection portion 42 and a fourth connection portion 43 respectively disposed on opposite sides of the second connection end 22. The first connection portion 32 and the third connection portion 42 are at least connected by a connecting member 50, and the second connection portion 33 and the fourth connection portion 43 are at least connected by a connecting member 50.

[0128] In this embodiment, the first mounting member 30 is arranged to be at least on opposite sides of the pipe body 10, the second mounting member 40 is arranged to be at least on opposite sides of the nozzle 20, and the first connecting portion 32 of the first mounting member 30 on one side of the pipe body 10 is fixedly connected to the third connecting portion 42 of the second mounting member 40 on the same side of the nozzle 20. At the same time, the second connecting portion 33 of the first connecting portion 32 on the opposite side of the pipe body 10 is fixedly connected to the fourth connecting portion 43 of the second mounting member 40 on the same side of the nozzle 20. In this way, connecting members 50 are respectively arranged on opposite sides of the pipe body 10 and the nozzle 20 to connect the first mounting member 30 and the second mounting member 40. The multiple connecting members 50 arranged circumferentially along the wire feeding pipe provide multiple clamping forces in the direction perpendicular to the pipe axis of the wire feeding pipe, and the stability and reliability of the joint connection between the nozzle 20 and the pipe body 10 are higher. In addition, the second mounting member 40 protrudes from the outer wall of the nozzle 20, and the first mounting member 30 protrudes from the outer wall of the pipe body 10. Both the first mounting member 30 and the second mounting member 40 can block the transfer of gaseous metal between the wire outlet end 21 and the wire inlet end 11, reducing the risk of blockage caused by the deposition of gaseous metal at the wire inlet end 11. At the same time, the first mounting member 30 and the second mounting member 40 double-block heat and can also effectively block the heat conduction at the evaporation boat.

[0129] It should be noted that in some embodiments, the first mounting member 30 may have a first connecting portion 32 and a second connecting portion 33 respectively arranged on opposite sides of the first connecting end 12, that is, along the direction perpendicular to the pipe axis of the pipe body 10, the first mounting member 30 has two connecting portions arranged oppositely, and the two connecting portions respectively protrude backward from the outer wall of the pipe body 10; the second mounting member 40 may have a third connecting portion 42 and a fourth connecting portion 43 respectively arranged on opposite sides of the second connecting end 22, that is, along the direction perpendicular to the pipe axis of the nozzle 20, the second mounting member 40 has two connecting portions arranged oppositely, and the two connecting portions respectively protrude backward from the outer wall of the nozzle 20. In this case, one or more connecting members 50 are further arranged to connect the first connecting portion 32 and the third connecting portion 42, and one or more connecting members 50 are arranged to connect the second connecting portion 33 and the fourth connecting portion 43. Multiple connecting members 50 are respectively arranged on opposite sides of the wire feeding pipe in the direction of the pipe axis for fixedly connecting the first mounting member 30 and the second connection.

[0130] In other embodiments, the first mounting member 30 may further have more connecting portions arranged around the pipe body 10 along the circumferential direction of the pipe body 10, and the second mounting member 40 may further have more connecting portions arranged around the nozzle 20 along the circumferential direction of the nozzle 20. In such a case, a plurality of connecting members 50 are provided to correspondingly connect the plurality of connecting portions of the first mounting member 30 and the plurality of connecting portions of the second mounting member 40. The plurality of connecting members 50 are arranged along the circumferential direction of the wire feeding pipe and provide a plurality of pairs of clamping forces, so as to better improve the stability and reliability of the joint connection between the nozzle 20 and the pipe body 10. Exemplarily, both the first mounting member 30 and the second mounting member 40 may be plate members, the plate members are sleeved on the outer walls of the pipe body 10 and the nozzle 20, and the length of the rod portion 51 is equal to or slightly less than the sum of the thicknesses of the first mounting member 30 and the second mounting member 40.

[0131] In some embodiments, as Figure 1 、 Figure 6 and Figure 7 shown, a positioning structure 60 is further provided between the first mounting member 30 and the second mounting member 40. The positioning structure 60 is provided for assembling and positioning the first mounting member 30 and the second mounting member 40. When connecting the first mounting member 30 and the second mounting member 40, first use the positioning structure 60 to position the first mounting member 30 and the second mounting member 40. In this way, the connecting member 50 can be quickly aligned to the installation position, reducing the risk of relative sliding of the first mounting member 30 and the second mounting member 40 caused by the connecting operation during the process of installing the connecting member 50, and further improving the connecting precision of the first mounting member 30 and the second mounting member 40, thereby improving the joint precision between the nozzle 20 and the pipe body 10.

[0132] In a specific embodiment, as Figure 1 、 Figure 6 and Figure 7 shown, the positioning structure 60 includes a first magnetic member 61 and a second magnetic member 62 that are magnetically coupled. One of the first mounting member 30 and the second mounting member 40 is provided with the first magnetic member 61, and the other of the first mounting member 30 and the second mounting member 40 is provided with the second magnetic member 62. In this way, using magnetic coupling for positioning, the positioning structure 60 is simple and the disassembly and assembly operation of the positioning structure 60 is convenient.

[0133] It can be understood that in some embodiments, one of the first magnetic member 61 and the second magnetic member 62 may be a magnet member that has a magnetic moment and can generate a magnetic field, and the other of the first magnetic member 61 and the second magnetic member 62 is a ferromagnetic material member that can be magnetically adsorbed by the magnet member.

[0134] Of course, in other embodiments, the first magnetic member 61 may be a magnet member, and the second magnetic member 62 may be a magnet member with a magnetic pole opposite to that of the first magnetic member 61. For example, the first magnetic member 61 is an N pole and the second magnetic member 62 is an S pole, etc.

[0135] In other embodiments, the positioning structure 60 may further include a positioning hole and a positioning post that are inserted and mated. One of the first mounting member 30 and the second mounting member 40 is provided with the positioning hole, and the other of the first mounting member 30 and the second mounting member 40 is provided with the positioning post. In these embodiments, the first mounting member 30 and the second mounting member 40 are positioned by inserting the hole and the post, and the positioning structure 60 is simple and the disassembly and assembly operation of the positioning structure 60 is convenient.

[0136] In some embodiments, such as Figure 3 and Figure 8 shown, one of the ports of the second connection end 22 and the first connection end 12 is a tapered port, and the end face of the other of the first connection end 12 and the second connection end 22 has an inclined surface 121 adapted to the tapered port. When the first connection end 12 and the second connection end 22 are joined, the inclined surface 121 fits against the inner wall of the tapered port.

[0137] Among them, one of the ports of the second connection end 22 and the first connection end 12 is a tapered port, and the end face of the other of the first connection end 12 and the second connection end 22 has an inclined surface 121 adapted to the tapered port, which means that: the port of the second connection end 22 is a tapered port, and correspondingly, the end face of the first connection end 12 has an inclined surface 121 adapted to the tapered port; or, the port of the first connection end 12 is a tapered port, and the end face of the second connection end 22 has an inclined surface 121 adapted to the tapered port.

[0138] It should be noted that, in a specific embodiment, the port of the second connection end 22 being a tapered port means that the inner diameter of the second channel 23 at the second connection end 22 gradually decreases in the direction approaching the wire outlet end 21, and the port of the first connection end 12 being a tapered port means that the inner diameter of the first channel 13 at the first connection end 12 gradually decreases in the direction approaching the wire inlet end 11.

[0139] In this embodiment, the form of setting the tapered port to cooperate with the inclined surface 121 enables the nozzle 20 and the pipe body 10 to be inserted and joined. In this way, the tapered port and the inclined surface 121 are cooperatively docked, which can achieve quick and accurate alignment. During the use of the wire feeding pipe, the inclined surface 121 fits against the inner wall of the tapered port, and the tapered port can also play a role in restricting the movement of the inclined surface 121, reducing the risk of docking misalignment between the nozzle 20 and the pipe body 10, and improving the connection reliability.

[0140] In a specific embodiment, such as Figure 3 and Figure 8As shown, an inner chamfer 221 is provided at the first connection end 12 or the second connection end 22, thereby forming a gradually expanding opening. Correspondingly, an outer chamfer is provided at the second connection end 22 or the first connection end 12, thereby forming an inclined surface 121 adapted to the gradually expanding opening. The forming process of the gradually expanding opening and the inclined surface 121 is simple and convenient for processing and manufacturing.

[0141] It can be understood that in a specific embodiment, an inner chamfer 221 can be provided at the first connection end 12, thereby forming a gradually expanding opening at the first connection end 12. Correspondingly, an outer chamfer is provided at the second connection end 22, thereby forming an inclined surface 121 at the second connection end 22 that fits and adheres to the inner wall of the gradually expanding opening. Alternatively, an inner chamfer 221 can also be provided at the second connection end 22, thereby forming a gradually expanding opening at the second connection end 22. Correspondingly, an outer chamfer is provided at the first connection end 12, thereby forming an inclined surface 121 at the first connection end 12 that fits and adheres to the inner wall of the gradually expanding opening.

[0142] In some embodiments, such as Figure 1 and Figure 9 shown, the wire feeding end 11 is provided with a mounting seat 112, and the mounting seat 112 is used for mounting on the mounting table of the wire feeding mechanism. The wire feeding tube is fixed to the mounting table of the wire feeding mechanism through the mounting seat 112 to improve the mounting stability of the wire feeding tube.

[0143] In a specific embodiment, the mounting seat 112 and the tube body 10 can be an integral part, and the mounting seat 112 and the tube body 10 can be integrally cast, having higher structural strength. When the tube body 10 is mounted on the mounting table of the wire feeding mechanism, it has higher mounting stability.

[0144] In other embodiments, the mounting seat 112 can also be detachably connected to the tube body 10. The detachable connection between the mounting seat 112 and the tube body 10 facilitates the installation and disassembly between the mounting seat 112 and the tube body 10, and can effectively reduce the disassembly and assembly costs of the mounting seat 112 and the tube body 10.

[0145] In some embodiments, such as Figure 1 、 Figure 2 and Figure 9 shown, a baffle 14 is further provided outside the tube body 10, and the baffle 14 is located on the side of the mounting seat 112 facing the nozzle 20. The baffle 14 protrudes from the outer wall of the tube body 10 and is located between the mounting seat 112 and the first connection end 12. The baffle 14 can effectively block the transfer of gaseous metal, reduce the risk of gaseous metal deposition on the mounting seat 112 affecting the disassembly and assembly of the mounting seat 112, and deposition at the wire feeding end 11 affecting the normal feeding of the metal wire. At the same time, the baffle 14 can also block heat and effectively block the heat conduction from the evaporation boat.

[0146] In some embodiments, such as Figure 1 、 Figure 2 andFigure 9 As shown, at least a portion of the baffle 14 is bent toward the nozzle 20 . In this way, the portion of the baffle 14 bent toward the nozzle 20 can further improve the blocking effect of the baffle 14 on the gaseous metal.

[0147] Part of the baffle 14 is bent toward the nozzle 20, which means that a part of the baffle 14 is bent toward the nozzle 20, for example, the baffle 14 includes a first half and a second half located on opposite sides of the tube axis of the tube body 10. The end of the first half away from the tube body 10 is bent toward the nozzle 20, or the end of the second half away from the tube body 10 is bent toward the nozzle 20, or the end of the first half away from the tube body 10 and the end of the second half away from the tube body 10 are both bent toward the nozzle 20.

[0148] In a specific embodiment, the baffle 14 and the pipe body 10 are an integral part. The baffle 14 and the pipe body 10 can be integrally cast, or the baffle 14 can be connected to the pipe body 10 by welding to form an integral structure. In this way, the baffle 14 and the pipe body 10 are an integral structure, the connection stability of the baffle 14 and the pipe body 10 is higher, and the baffle 14 has a better effect in blocking heat and gaseous metal.

[0149] In some embodiments, Figure 4 , Figure 9 and Figure 10 As shown, the port of the wire feeding end 11 is a gradually expanding port, that is, the inner radial direction of the first channel 13 at the wire feeding end 11 is gradually reduced in the direction close to the first connecting end 12. In this way, at the wire feeding end 11 of the pipe body 10, the gradually expanding port forms a bell mouth structure, so that the entrance of the first channel 13 has a larger radial dimension, and the wire feeding end 11 has a larger wire feeding dimension.

[0150] In some embodiments, Figure 10 As shown, the port of the wire feeding end 11 is provided with an arc-shaped inner chamfer 111 .

[0151] In this way, an arc-shaped inner chamfer 221 is set at the port of the wire feeding end 11. When the metal wire is fed into the wire feeding tube, it contacts the arc surface. The port of the wire feeding end 11 does not have a sharp corner structure, which can effectively reduce the wear on the metal wire.

[0152] In a specific embodiment of the present application, the wire feeding tube includes a tube body 10, a nozzle 20, a first mounting member 30, a second mounting member 40, and a connecting member 50. The tube body 10 has a wire inlet end 11, a first connection end 12, and a first channel 13 penetrating through the wire inlet end 11 and the first connection end 12. The nozzle 20 has a wire outlet end 21, a second connection end 22, and a second channel 23 penetrating through the second connection end 22 and the wire outlet end 21. The first mounting member 30 is fixedly installed at the first connection end 12, and the second mounting member 40 is fixedly installed at the second connection end 22. The first mounting member 30 is provided with a first connection hole 31, and the second mounting member 40 is provided with a second connection hole 41. The first mounting member 30 and the second mounting member 40 are connected by the connecting member 50 penetrating through the first connection hole 31 and the second connection hole 41. The connecting member 50 is an integral part, and the connecting member 50 includes a rod portion 51, a first cap portion 52, and a second cap portion 53 provided at both ends of the rod portion 51. The size of the second connection hole 41 is larger than the size of the second cap portion 53 and smaller than the size of the first cap portion 52. The first connection hole 31 has a large hole end 311 and a small hole end 312. The size of the large hole end 311 is larger than the size of the second cap portion 53, and the size of the small hole end 312 is smaller than the size of the second cap portion 53. The first cap portion 52 and the second cap portion 53 can cooperate to clamp the first mounting member 30 and the second mounting member 40. The first mounting member 30 has a first connection portion 32 and a second connection portion 33, and the second mounting member 40 has a third connection portion 42 and a fourth connection portion 43. The first connection portion 32 and the third connection portion 42 are connected by a connecting member 50, and the second connection portion 33 and the fourth connection portion 43 are connected by a connecting member 50. The first mounting member 30 is further provided with a first magnetic member 61, and the second mounting member 40 is provided with a second magnetic member 62 magnetically engaged with the first magnetic member 61. The second connection end 22 is provided with an inner chamfer 221, and the port of the second connection end 22 is a gradually expanding port. The first connection end 12 is provided with an outer chamfer, and the end face of the first connection end 12 has an inclined surface 121 adapted to the gradually expanding port. When the first connection end 12 and the second connection end 22 are joined, the inclined surface 121 fits against the inner wall of the gradually expanding port. The port of the wire inlet end 11 is a gradually expanding port, and the port of the wire inlet end 11 is provided with an arc-shaped inner chamfer 111. Taking the evaporation boat as a reference, the length of the tube wall on the side of the nozzle 20 away from the evaporation boat is longer than the length of the tube wall on the opposite side. Both the tube body 10 and the nozzle 20 are arc-shaped tubes, and both the first channel 13 and the second channel 23 are arc-shaped channels. When the two are connected, the corresponding circles of the center lines of the first channel 13 and the second channel 23 have equal radii and are concentric. The outer wall of the tube body 10 is further provided with a mounting seat 112 and a baffle 14.

[0153] Another embodiment of the present application further provides a wire feeding mechanism, including the wire feeding tube provided in each of the above embodiments.

[0154] In some embodiments, the wire feeding mechanism further includes a wire coiling disc and a pinch roller wire feeding motor. The metal wire comes out of the wire coiling disc, enters the wire feeding tube through the pinch roller wire feeding motor, and then reaches the evaporation boat after being conveyed through the wire feeding tube.

[0155] For the wire feeding mechanism of this embodiment, by using the wire feeding tubes of the above-mentioned various embodiments, when the nozzle of the wire feeding tube is damaged, only the nozzle needs to be replaced, and the tube body does not need to be disassembled, reducing the risk of reduced assembly accuracy caused by replacing the tube body. In addition, when replacing the nozzle, the connecting piece can play a role in connecting and positioning, ensuring higher assembly accuracy between the nozzle and the tube body, higher connection stability and reliability between the nozzle and the tube body, reducing the risk of the nozzle loosening during use, and reducing the risk of the wire feeding point shifting due to the loosening of the nozzle of the wire feeding tube. The wire feeding mechanism has higher wire feeding accuracy.

[0156] Since the wire feeding mechanism includes the above-mentioned wire feeding tube, the wire feeding mechanism at least has all the beneficial effects of the above-mentioned wire feeding tube, which will not be elaborated here.

[0157] Another embodiment of the present application further provides a vapor deposition apparatus, including the wire feeding mechanism provided in the above-mentioned embodiment.

[0158] For the vapor deposition apparatus of this embodiment, by using the above-mentioned wire feeding mechanism, the wire feeding accuracy of the wire feeding mechanism is improved, which helps to improve the vapor deposition effect of the vapor deposition apparatus and improve the coating quality.

[0159] Since the vapor deposition apparatus includes the above-mentioned wire feeding tube, the vapor deposition apparatus at least has all the beneficial effects of the above-mentioned wire feeding tube, which will not be elaborated here.

[0160] The descriptions of the above embodiments tend to emphasize the differences between the embodiments. Their similarities can be referred to each other. For the sake of brevity, they will not be elaborated here.

[0161] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wire feeding tube, characterized in that: include: The tube body has a wire feeding end, a first connecting end, and a first channel running through the wire feeding end and the first connecting end; A nozzle having a wire outlet end, a second connecting end, and a second passage running through the second connecting end and the wire outlet end; A first mounting member, fixedly connected to the first connecting end; A second mounting member, fixedly connected to the second connecting end; and A connecting member is detachably connected to the first mounting member and the second mounting member, wherein when the first mounting member is connected to the second mounting member, the first connecting end is engaged with the second connecting end, and the first channel is connected to the second channel.

2. The wire feeding tube according to claim 1, characterized in that: The first mounting member is provided with a first connecting hole, the second mounting member is provided with a second connecting hole, and the first mounting member and the second mounting member are fixedly connected by the connecting member penetrating the first connecting hole and the second connecting hole.

3. The wire feeding tube according to claim 2, characterized in that: The connecting member includes a rod portion, and a first cap portion and a second cap portion provided at opposite ends of the rod portion, the rod portion is adapted to pass through the first connecting hole and the second connecting hole, and the first cap portion and the second cap portion are used to cooperate in clamping the first mounting member and the second mounting member.

4. The wire feeding tube according to claim 3, characterized in that: The size of the second connecting hole is larger than that of the second cap portion and smaller than that of the first cap portion. The first connecting hole has a large hole end and a small hole end. The size of the large hole end is larger than that of the second cap portion, and the size of the small hole end is smaller than that of the second cap portion.

5. The wire feeding tube according to claim 4, characterized in that: The first connecting hole is an arc-shaped hole.

6. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The connecting piece is an integral piece.

7. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The first mounting member has at least a first connection portion and a second connection portion which are respectively arranged on opposite sides of the first connection end, and the second mounting member has at least a third connection portion and a fourth connection portion which are respectively arranged on opposite sides of the second connection end, the first connection portion is connected to the third connection portion through at least one of the connecting members, and the second connection portion is connected to the fourth connection portion through at least one of the connecting members.

8. The wire feeding tube according to any one of claims 1 to 5, characterized in that: A positioning structure is also provided between the first mounting member and the second mounting member.

9. The wire feeding tube according to claim 8, characterized in that: The positioning structure includes a first magnetic member and a second magnetic member that are magnetically matched. One of the first mounting member and the second mounting member is provided with the first magnetic member, and the other of the first mounting member and the second mounting member is provided with the second magnetic member.

10. The wire feeding tube according to claim 8, characterized in that: The positioning structure includes a positioning hole and a positioning column that are plug-fitted together. One of the first mounting member and the second mounting member is provided with the positioning hole, and the other of the first mounting member and the second mounting member is provided with the positioning column.

11. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The first mounting member is an integral part with the pipe body; and / or the second mounting member is an integral part with the pipe nozzle.

12. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The port of one of the second connection end and the first connection end is a gradually expanding port, and the end face of the other of the first connection end and the second connection end has an inclined surface adapted to the gradually expanding port, and when the first connection end is joined with the second connection end, the inclined surface fits against the inner wall of the gradually expanding port.

13. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The port of the wire feeding end is a gradually expanding port.

14. The wire feeding tube according to claim 13, characterized in that: The port of the wire feeding end is provided with an arc-shaped inner chamfer.

15. The wire feeding tube according to any one of claims 1 to 5, characterized in that: Along a direction perpendicular to the tube axis of the tube nozzle, the tube walls of the tube nozzle are located on two opposite sides of the tube axis of different lengths.

16. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The first channel and the second channel are both arc-shaped channels. When the first channel is connected to the second channel, the radius of the circle corresponding to the center line of the first channel and the radius of the circle corresponding to the center line of the second channel are equal and concentric.

17. The wire feeding tube according to any one of claims 1 to 5, characterized in that: The wire feeding end is provided with a mounting seat, and the mounting seat is used to be mounted on a mounting platform of a wire feeding mechanism.

18. The wire feeding tube according to claim 17, characterized in that: A baffle is also provided outside the pipe body, and the baffle is located on a side of the mounting seat facing the pipe nozzle.

19. The wire feeding tube according to claim 18, characterized in that: A portion of the baffle is bent toward the nozzle.

20. A wire feeding mechanism, characterized in that: The invention comprises the wire feeding tube according to any one of claims 1 to 19.

21. A vapor deposition device, characterized in that: Including the wire feeding mechanism described in claim 20.

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