Evaporation boat for vacuum coating machine

Abstract

The utility model discloses an evaporation boat for a vacuum coating machine, which relates to the technical field of evaporation boats and comprises a dissolving groove, an assembly frame is arranged on the upper side of the dissolving groove, a baffle is fixedly mounted on the inner side of the surface of the assembly frame, and evaporation holes are uniformly distributed in the surface of the baffle. And heating pieces are evenly distributed and fixedly installed at the positions, located at gaps of the evaporation holes, of the lower surface of the blocking plate, a combined plate body of the assembling frame and the blocking plate can cover an opening in the upper end of the dissolving groove, inserting grooves are formed in the front side and the rear side of the upper surface of the dissolving groove, and inserting blocks are installed on the inner surfaces of the inserting grooves in an inserted mode. Compared with an existing evaporation boat for a common vacuum coating machine, the evaporation boat for the vacuum coating machine has the advantages that an aluminum solution can be prevented from boiling and splashing, the aluminum solution can be prevented from dripping and sputtering, and the aluminum solution which drips and flows back can be secondarily heated and evaporated, so that the waste of coating materials is greatly reduced, and the use sufficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of evaporation boat, concretely to a kind of evaporation boat for vacuum coating machine. BACKGROUND

[0002] Composite aluminum current collector is used as the substitute material of traditional lithium battery aluminum foil, with high safety, light weight and lower thickness, and becomes the new development trend of lithium ion battery current collector, with the gradual improvement of metallized composite current collector process technology, composite aluminum current collector with PET as main matrix has begun to be applied in lithium battery terminal in batches.The preparation method of aluminum composite current collector is that the industry mainstream process route is to deposit a layer of aluminum with a thickness of 0.5-1.5 μm on polymer matrix by vacuum evaporation method.In the aluminum evaporation process, the evaporation carrier has been a point with extremely high cost and difficult operation, at high temperature, aluminum liquid has extremely high activity, and can react with most metals and compounds, the industry has continuously optimized and screened, and the external heating mode with boron nitride crucible as main and the electric heating mode with ceramic evaporation boat become two mainstream schemes, since the evaporation boat electric heating method has the advantages of convenient operation and low cost, it has broader development prospect.

[0003] The existing evaporation boat for vacuum coating machine can heat and evaporate coating materials by evaporation boat, and coat workpieces, which can avoid splashing or sputtering caused by boiling of coating materials during coating, but the coating material liquid after dripping will accumulate on the surface of the blocking piece, which cannot be fully utilized, resulting in waste of coating materials.

[0004] Therefore, in view of the above problems, the existing structure is improved, and an evaporation boat for vacuum coating machine is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an evaporation boat for vacuum coating machine to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: an evaporation boat for vacuum coating machine, comprising a dissolving tank, a mounting frame is arranged on the upper side of the dissolving tank, a blocking plate is fixedly installed on the surface of the mounting frame, evaporation holes are uniformly distributed on the surface of the blocking plate, heating elements are fixedly installed on the lower surface of the blocking plate and uniformly distributed at the gaps between the evaporation holes, and the combined plate body of the mounting frame and the blocking plate can cover the upper end opening of the dissolving tank.

[0007] Preferably, the upper surface of the dissolving tank is provided with a slot on the front and rear sides, and a plug-in block is inserted and installed on the inner surface of the slot.

[0008] Preferably, the upper end of the plug-in block is fixedly connected with the mounting frame, and the height of the plug-in block is greater than the longitudinal depth of the slot.

[0009] Preferably, the left and right sides of the inner surface of the dissolving tank are provided with inclined surfaces inclined to the middle, and the left and right sides of the opening of the dissolving tank are provided with feed ports.

[0010] Preferably, the outer surface of the dissolving tank is covered with a heating tank, and the inner surface of the heating tank is matched in shape with the dissolving tank.

[0011] Preferably, the outer surface of the heating tank is fixedly provided with electrodes on the left and right sides, and the electrodes are connected with a cable harness.

[0012] Preferably, the depth of the tank body of the dissolving tank is 1-2 mm, and the depth of the tank body of the heating tank is 3-4 mm.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. The present application is provided with an assembly frame, a blocking plate, an evaporation hole and a heating element, which can not only prevent the aluminum solution from splashing and dripping, but also can perform secondary heating and evaporation on the dripping and flowing aluminum solution, thereby greatly reducing the waste of the coating material and greatly improving the use sufficiency.

[0015] 2. The present application is provided with a dissolving tank and a heating tank, which can effectively prevent the dissolving tank from being directly heated to accelerate the corrosion speed of the boat body, and can simultaneously heat the whole body of the dissolving tank by using external auxiliary heating, thereby ensuring the uniformity of the temperature of the whole boat body and making the heating and melting of the coating material more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole three-dimensional structure schematic diagram of the present application;

[0017] Fig. 2 It is a whole split structure schematic diagram of the present application;

[0018] Fig. 3 It is a blocking plate bottom view structure schematic diagram of the present application.

[0019] In the figure: 1, dissolving tank; 2, slot; 3, plug; 4, assembly frame; 5, blocking plate; 6, evaporation hole; 7, heating element; 8, heating tank; 9, electrode. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figs. 1-3 As shown, an evaporation boat for a vacuum coating machine includes a melting tank 1. An assembly frame 4 is provided on the upper side of the melting tank 1. A baffle plate 5 is fixedly installed on the inner side of the surface of the assembly frame 4. Evaporation holes 6 are evenly distributed on the surface of the baffle plate 5. Heating elements 7 are evenly distributed and fixedly installed on the lower surface of the baffle plate 5 at the gaps between the evaporation holes 6. The combined plate of the assembly frame 4 and the baffle plate 5 can cover the upper opening of the melting tank 1.

[0022] By adopting the above technical solution, the molten aluminum evaporates and rises, and will adhere to the surface of the workpiece through the evaporation hole 6, thereby coating the workpiece.

[0023] The baffle plate 5 blocks the upper opening of the entire melting tank 1 to prevent the solution from boiling and splashing. It also prevents excess aluminum liquid from dripping onto the surface of the workpiece into the melting tank 1, which would cause the boiling solution to splash.

[0024] The dripping aluminum solution on the surface of the barrier plate 5 will be heated by the heating element 7 and thus evaporated and reused.

[0025] Furthermore, slots 2 are provided on both the front and rear sides of the upper surface of the melting tank 1, and insert blocks 3 are inserted and installed on the inner surface of the slots 2.

[0026] The upper end of the insert 3 is fixedly connected to the assembly frame 4, and the height of the insert 3 is greater than the depth of the slot 2;

[0027] The inner surface of the melting tank 1 is set as inclined surfaces on the left and right sides, and the opening of the melting tank 1 is set as feed inlets on the left and right sides.

[0028] By adopting the above technical solution, the barrier plate 5 can be installed with the melting tank 1 by inserting the plug 3 into the slot 2;

[0029] When the insert 3 is fully inserted into the slot 2, it can also raise the baffle plate 5 to a certain height, without directly and completely closing the opening of the melting tank 1, thus ensuring that the feed port can continuously feed material into the melting tank 1.

[0030] Furthermore, the outer surface of the melting tank 1 is covered with a heating tank 8, and the inner surface shape of the heating tank 8 matches the shape of the melting tank 1.

[0031] The depth of the tank body of the dissolving tank 1 is 1-2 mm, and the depth of the tank body of the heating tank 8 is 3-4 mm.

[0032] By using the above technical scheme, the dissolving tank 1 is not heated by itself, but is externally assisted by the heating tank 8, which effectively prevents the direct heating of the dissolving tank 1 from accelerating the corrosion speed of the boat body, and the external auxiliary heating mode can synchronously heat the whole dissolving tank 1, thereby ensuring the uniformity of the temperature of the whole boat body.

[0033] Working principle: when using the evaporation boat of the vacuum coating machine, first, the plate body composed of the assembly frame 4 and the blocking plate 5 is combined, the blocking plate 5 is covered on the upper side of the dissolving tank 1 by inserting the block 3 into the slot 2, then the dissolving tank 1 is put into the heating tank 8, the cable bundle delivers the current value electrode 9, the heating tank 8 is heated by the resistance value, the dissolving tank 1 is uniformly heated, the coating material is sent into the inside through the feed port on both sides of the dissolving tank 1, heated and melted, gasified and rising, the steam passes through the evaporation hole 6 and rises, adheres to the surface of the workpiece, and then the workpiece is coated, the blocking plate 5 blocks the upper opening of the whole dissolving tank 1, avoids the boiling and splashing of the solution, and also avoids the falling of the excess aluminum solution on the surface of the workpiece into the dissolving tank 1, which causes the boiling solution to splash, the falling aluminum solution on the surface of the blocking plate 5 is heated by the heating piece 7 and then evaporates upward to coat the workpiece, thereby fully and completely using the coating material, which is the working principle of the evaporation boat of the vacuum coating machine.

Claims

1. An evaporation boat for a vacuum coater, comprising a container (1) for a solution, characterized in that The upper side of the dissolving tank (1) is provided with an assembly frame (4), the surface inner side of the assembly frame (4) is fixedly installed with a barrier plate (5), the surface of the barrier plate (5) is uniformly distributed with evaporation holes (6), the lower surface of the barrier plate (5) is fixedly installed with heating pieces (7) at the gaps between the evaporation holes (6), and the combined plate body of the assembly frame (4) and the barrier plate (5) can cover the upper end opening of the dissolving tank (1).

2. The evaporation boat for a vacuum coating machine according to claim 1, wherein The upper surface of the dissolving tank (1) is provided with a slot (2) on the front and rear sides, and the inner surface of the slot (2) is insertedly installed with an insertion block (3).

3. The evaporation boat for a vacuum coating machine according to claim 2, wherein The upper end of the insertion block (3) is fixedly connected with the assembly frame (4), and the height of the insertion block (3) is greater than the longitudinal depth of the slot (2).

4. The evaporation boat for vacuum coating machine according to claim 1, wherein The inner surface of the dissolving tank (1) is provided with inclined surfaces on the left and right sides to the middle part, and the left and right sides of the opening of the dissolving tank (1) are provided with feed inlets.

5. The evaporation boat for vacuum coating machine according to claim 1, wherein The outer surface of the dissolving tank (1) is covered with a heating groove (8), and the inner surface shape of the heating groove (8) is matched with the shape of the dissolving tank (1).

6. The evaporation boat for a vacuum coating machine according to claim 5, wherein The outer surface of the heating groove (8) is fixedly installed with electrodes (9) on the left and right sides, and the electrodes (9) are connected with cable harnesses.

7. The evaporation boat for a vacuum coating machine according to claim 1, wherein The groove depth of the dissolving tank (1) is 1mm-2mm, and the groove depth of the heating groove (8) is 3mm-4mm.

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