Continuous feeding mechanism and evaporation equipment

Abstract

The embodiment of the utility model provides a continuous feeding mechanism and evaporation equipment. The continuous feeding mechanism comprises a wire feeding disc, a melting assembly, a traction assembly and an aluminum wire, the melting assembly comprises a melting sleeve and a heating part, a melting channel is formed in the melting sleeve, and an outlet of the melting channel is located in the bottom of the melting sleeve; the traction assembly comprises a traction wheel and a clamping wheel, and the traction wheel is connected with the output shaft end of the traction motor; the tail end of the aluminum wire is wound on the wire feeding disc, and the front end of the aluminum wire penetrates into the melting channel after passing through the traction assembly; the aluminum wire is clamped between the side face of the rim of the traction wheel and the side face of the rim of the clamping wheel. After the technical scheme is adopted, an aluminum material is not directly evaporated from a solid state like a traditional technology, the aluminum material can be firstly heated to be changed into a liquid state from the solid state, and then the liquid aluminum material in the evaporation tank is heated for evaporation, so that the problem that the aluminum material is sputtered frequently in the existing operation is avoided; and therefore, the continuous film plating length can be greatly increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to electroplating technical field especially relates to a continuous feeding mechanism and evaporation equipment. BACKGROUND

[0002] The composite current collector adopts a three-layer composite structure of metal-polymer material-metal, forms a nanoscale metal on the surface of the polymer PET / PP film through vacuum evaporation, magnetron sputtering and other modes, and then deposits and thickens the metal layer to more than 1 microns through electroplating, thereby replacing the traditional aluminum foil and copper foil as the positive and negative electrode materials of the battery, and having the advantages of low cost, high safety, long service life and high energy density, and has been increasingly widely applied to lithium ion batteries.

[0003] In the prior art, the preparation process of the composite current collector involves an evaporation link, and the corresponding evaporation equipment includes a vacuum cavity, a unwinding assembly, an evaporation device and an electromagnetic heating roller and other components.

[0004] In the implementation of the utility model, the inventors have found at least the following problems in the prior art:

[0005] In the existing evaporation equipment, after the aluminum material is conveyed to the evaporation tank by the continuous feeding mechanism, the aluminum material is directly evaporated from solid state by heating. UTILITY MODEL CONTENTS

[0006] The utility model discloses a novel continuous feeding mechanism and evaporation equipment, which solve the problem that the existing evaporation equipment has a continuous feeding mechanism that is prone to aluminum material splashing and thus limits the continuous film plating length.

[0007] To achieve the above object, on the one hand, the utility model discloses a continuous feeding mechanism, including the wire feeding disc, the melting assembly, the traction assembly located the melting assembly top and the aluminum wire as the evaporation material, the melting assembly includes the melting cover and the heating part, is set up the melting passage on the melting cover, and the outlet of melting passage is located the bottom of melting cover, the traction assembly includes the traction wheel and the clamping wheel, and the traction wheel is connected with the output shaft end of traction motor, the end of aluminum wire is wound on the wire feeding disc, and the front end of aluminum wire is from top to bottom into the melting passage after the traction assembly, and the front end of aluminum wire is located in the heating range of heating part, the part of aluminum wire and traction assembly contact is clamped between the flange side of traction wheel and the flange side of clamping wheel.

[0008] Further, the melting passage is vertically arranged, and the melting passage penetrates the upper and lower surfaces of the melting cover.

[0009] Further, the flange side of the traction wheel and the flange side of the clamping wheel are provided with grooves, and the depth of the grooves is less than the radius of the aluminum wire.

[0010] Further, a support wheel is arranged between the wire feeding disc and the traction assembly, the top of the support wheel is in contact with the bottom end of the aluminum wire, and the flange side of the support wheel is provided with a groove.

[0011] Further, the heating part is an electromagnetic induction coil, an electron beam heating structure, or a combined heating structure, wherein the combined heating structure refers to the combination of the electromagnetic induction coil and the electron beam heating structure.

[0012] Further, the electromagnetic induction coil is coaxially arranged with the melting passage, and the electromagnetic induction coil is sleeved on the inner side of the melting passage; the inner diameter of the electromagnetic induction coil is greater than the outer diameter of the aluminum wire.

[0013] Further, the melting passage is a tapered hole with a wide upper end and a narrow lower end, the electromagnetic induction coil is a tapered structure with a wide upper end and a narrow lower end, and the taper of the electromagnetic induction coil is the same as the taper of the melting passage.

[0014] Further, the electron beam heating structure includes an electron beam gun and an anode base; the electron beam gun and the anode base are respectively connected with the melting cover, the electron beam gun is horizontally arranged, and the emission end of the electron beam gun is oppositely arranged with the anode base on both sides of the melting passage.

[0015] Further, in the combined heating structure, the electron beam heating structure is located below the electromagnetic induction coil.

[0016] On the other hand, the utility model also provides an evaporation equipment, which comprises the continuous feeding mechanism as described above; the outlet of the melting passage is located above the evaporation tank.

[0017] The above technical solution has the following advantages:

[0018] In the technical solution, instead of directly evaporating the aluminum material from solid state as in the prior art, the aluminum wire is sent into the melting assembly for heating through the joint action of the traction wheel and the clamping wheel, so that the aluminum material changes from solid state to liquid state and drops into the evaporation tank, and then the liquid aluminum material in the evaporation tank is heated for evaporation, thereby avoiding the problem of aluminum material sputtering often occurring in the prior operation, and further achieving a substantial increase in continuous film plating length. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Figure 1 is a structural schematic view of a continuous feeding mechanism according to an embodiment of the present application;

[0021] Figure 2 is a structural schematic view of another embodiment of the present application;

[0022] Figure 3 is a structural schematic view of still another embodiment of the present application;

[0023] LIST OF DRAWINGS

[0024] 10, wire feeding disc; 11, supporting wheel; 12, traction wheel; 13, clamping wheel; 20, melting sleeve; 21, electromagnetic induction coil; 22, melting channel; 23, liquid droplet; 24, electron beam gun; 25, anode base; 30, evaporation tank. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] To solve the foregoing problems, the application adopts a brand-new feeding mode, which is different from the traditional technology of directly evaporating aluminum wire from solid state, but first feeds the aluminum material in the form of wire into a melting assembly, heats the aluminum wire through the heating component in the melting assembly to make it into a molten state, then drops the liquid drop 23 into the evaporation tank 30, and heats it to evaporation in the evaporation tank 30 to realize evaporation and deposition, that is, the aluminum material realizes three-stage conversion of solid state-liquid state-gaseous state, which can greatly improve or even avoid the sputtering problem of aluminum material, and then can greatly improve the continuous film plating length.

[0027] To this end, the continuous feeding mechanism in the application is designed as a structure as shown in Figure 1 which is composed of a wire feeding disc 10, a melting assembly, a traction assembly and the like. The melting assembly includes a melting sleeve 20 and a heating component, the melting sleeve 20 is provided with a melting channel 22, and the outlet of the melting channel 22 is located at the bottom of the melting sleeve 20; the traction assembly includes a pair of traction wheels 12 and clamping wheels 13, the traction wheels 12 are driven by a traction motor, the flange side of the traction wheel 12 is oppositely arranged with the flange side of the clamping wheel 13, and the aluminum wire is clamped between the two, so that the aluminum wire is dragged to move by the rotation of the traction wheel 12, the front end of the aluminum wire can be deeply into the melting channel 22 from top to bottom, and then the aluminum wire is heated by the heating component to form a liquid drop 23, and then the liquid drop 23 is dropped into the evaporation tank 30 from the bottom outlet of the melting channel 22.

[0028] Further, the melting channel 22 is preferably arranged as a straight-up and straight-down channel, which can facilitate the smooth entry of the aluminum wire into the melting channel 22, and can avoid the liquid drop 23 from sticking to the side wall of the melting channel 22 to ensure the smooth dropping of the liquid drop 23.

[0029] Further, by arranging a groove with a radius close to that of the aluminum wire on the flange side of the traction wheel 12 and the flange side of the clamping wheel 13, the aluminum wire can be placed in the groove to avoid being extruded and deformed during the conveying process; however, the depth of the groove should be slightly smaller than the radius of the aluminum wire, otherwise, if the groove is too deep, the outer edges of the traction wheel 12 and the clamping wheel 13 may be extruded tightly, but the aluminum wire may not be clamped, at this time, the aluminum wire may slip and be out of sync, which cannot guarantee smooth conveying.

[0030] Further, a support wheel 11 is arranged between the wire feeding disc 10 and the traction assembly, which can support the aluminum wire from below to avoid the aluminum wire from sagging and deforming to affect the conveying, and the flange side of the support wheel 11 can also be provided with a groove with the same size as the groove on the traction wheel 12.

[0031] Further, the heating mode is electromagnetic induction coil heating or electron beam heating, that is, either of the two modes can be selected; at the same time, in order to achieve better results, the two modes can also be combined to form a combined heating mode.

[0032] As shown in Figure 1 , in the electromagnetic induction coil heating mode, the spatial spiral electromagnetic induction coil 21 is coaxially arranged with the melting channel 22, and the electromagnetic induction coil 21 is sleeved on the inner side of the melting channel 22; the inner diameter of the electromagnetic induction coil 21 is larger than the outer diameter of the aluminum wire. When the electromagnetic induction coil 21 is powered on, heat is generated, so that the aluminum wire inserted into the inner side is melted into a molten state.

[0033] Further, as shown in Figure 2 , the melting channel 22 is preferably designed as a tapered hole with a large upper end and a small lower end, so that there is a guide structure at the top of the melting sleeve 20, which facilitates the smooth entry of the aluminum wire into the melting channel 22 under the traction of the traction wheel 12. At this time, corresponding to the shape of the melting channel 22, the electromagnetic induction coil 21 is also designed as a tapered structure with a large upper end and a small lower end, and the taper of the electromagnetic induction coil 21 is the same as the taper of the melting channel 22.

[0034] Further, as shown in Figure 3 , in the electron beam heating mode, the electron beam heating structure includes an electron beam gun 24 and an anode base 25; the electron beam gun 24 and the anode base 25 are respectively connected with the melting sleeve 20, the electron beam gun 24 is horizontally arranged, and the emitting end of the electron beam gun 24 is arranged opposite to the anode base 25 on both sides of the melting channel 22. The electron beam gun 24 is an electron generator, and the anode base 25 is in contact with the aluminum wire and is conductive, and the anode base 25 becomes a high-voltage positive electrode during operation, so that the electrons generated by the electron beam gun 24 move at high speed towards the anode base 25 and the aluminum wire which are positively charged, thereby heating the aluminum wire.

[0035] Further, in the combined heating mode, the electron beam gun 24 should be arranged below the electromagnetic induction coil 21. In this way, the electromagnetic induction coil 21 can be used for preheating, and the electron beam heating can be used as the main melting heating mode.

[0036] The utility model embodiment further provides a kind of evaporation equipment, including the feeding mechanism as described above;The outlet of melting channel 22 is located above evaporation tank 30, so that the droplet 23 generated after heating will drop into evaporation tank 30 from the bottom outlet of melting channel 22.The new evaporation equipment in the utility model, unlike traditional technology, directly evaporates aluminum material from solid state, but through the joint action of traction wheel and clamping wheel, aluminum wire is sent into melting assembly for heating, so that aluminum material changes from solid state to liquid state and drops into evaporation tank, then liquid aluminum material in evaporation tank is heated for evaporation, thereby avoiding the problem of aluminum material sputtering frequently in existing operation, and further, the continuous film plating length can be greatly improved.

[0037] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0038] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0039] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A continuous feed mechanism, characterized by, The aluminum wire is evaporated by the aluminum wire evaporation device, and the aluminum wire evaporation device comprises a wire feeding reel (10), a melting assembly, a traction assembly located above the melting assembly, and an aluminum wire as an evaporation material; The melting assembly comprises a melting sleeve (20) and a heating component, a melting channel (22) is formed on the melting sleeve (20), and the outlet of the melting channel (22) is located at the bottom of the melting sleeve (20); The traction assembly comprises a traction wheel (12) and a clamping wheel (13), the traction wheel (12) is connected with the output shaft end of a traction motor; The end of the aluminum wire is wound on the wire feeding reel (10), the front end of the aluminum wire is introduced into the melting channel (22) from top to bottom after passing through the traction assembly, and the front end of the aluminum wire is located in the heating range of the heating component; The part of the aluminum wire in contact with the traction assembly is clamped between the flange side of the traction wheel (12) and the flange side of the clamping wheel (13).

2. The continuous feed mechanism of claim 1, wherein, The melting channel (22) is vertically arranged, and the melting channel (22) penetrates the upper and lower surfaces of the melting sleeve (20).

3. The continuous feed mechanism of claim 1, wherein, The flange side of the traction wheel (12) and the flange side of the clamping wheel (13) are provided with grooves, and the depth of the grooves is less than the radius of the aluminum wire.

4. A continuous feeding mechanism according to any one of claims 1 to 3, wherein The wire feeding reel (10) and the traction assembly are further provided with a supporting wheel (11), the top of the supporting wheel (11) is in contact with the bottom end of the aluminum wire, and the flange side of the supporting wheel (11) is provided with a groove.

5. The continuous feed mechanism of claim 2, wherein, The heating component is an electromagnetic induction coil (21), or an electron beam heating structure, or a combined heating structure, wherein the combined heating structure refers to the combination of the electromagnetic induction coil (21) and the electron beam heating structure.

6. The continuous feed mechanism of claim 5, wherein, The electromagnetic induction coil (21) is coaxially arranged with the melting channel (22), and the electromagnetic induction coil (21) is sleeved on the inner side of the melting channel (22); the inner diameter of the electromagnetic induction coil (21) is greater than the outer diameter of the aluminum wire.

7. The continuous feed mechanism of claim 6, wherein, The melting channel (22) is a tapered hole with a large upper end and a small lower end, the electromagnetic induction coil (21) is a tapered structure with a large upper end and a small lower end, and the taper of the electromagnetic induction coil (21) is the same as the taper of the melting channel (22).

8. A continuous feeding mechanism according to any one of claims 5 to 7, wherein The electron beam heating structure comprises an electron beam gun (24) and an anode base (25); the electron beam gun (24) and the anode base (25) are respectively connected with the melting sleeve (20), the electron beam gun (24) is horizontally arranged, and the emission end of the electron beam gun (24) is oppositely arranged with the anode base (25) on both sides of the melting channel (22).

9. The continuous feed mechanism of claim 8, wherein, In the combined heating structure, the electron beam heating structure is located below the electromagnetic induction coil (21).

10. An evaporation apparatus, characterized by, The aluminum wire evaporation device further comprises a continuous feeding mechanism as claimed in any one of claims 1-9, and the outlet of the melting channel (22) is located above an evaporation tank (30).

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