Film removing mechanism of battery piece film coating equipment

Abstract

The utility model discloses a film stripping mechanism of battery piece coating equipment, which comprises a stripping tank and a carrier, the stripping tank is divided into a carrier inflow section, a stripping process section and a carrier outflow section, and the bottoms of tank bodies of the carrier inflow section, the stripping process section and the carrier outflow section are respectively provided with a power device. The power devices in the carrier inflow section and the carrier outflow section convey carriers through transmission synchronous wheel sets and synchronous belts, the power device in the deplating process section conveys the carriers through transmission roller set wheels, and a liquid medicine backflow mechanism is arranged on the side face of a deplating groove in the deplating process section and comprises a backflow groove, a backflow pipe and a backflow pipeline. The backflow tank is connected with the bottom of the deplating tank through a backflow pipe, and the backflow pipe is arranged at the inner bottom of the deplating tank. Effective post-cleaning treatment is provided for the battery piece carrier after film coating, the carrier is kept in a clean process state, the film coating quality of battery pieces is improved, and batch and automatic operation can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic equipment field especially relates to a cell piece film coating equipment's film stripping mechanism. BACKGROUND

[0002] At present, all major photovoltaic enterprises in the industry are investing manpower and material resources to research and develop horizontal film coating equipment for cell pieces, and from the implementation route, one is to adopt a flow piece mode, that is, when the cell piece flows through the plating tank process section, the power cathode is directly communicated with the grid line bottom copper, and under the action of the electric field, a film layer is generated, but this mode has a series of stubborn problems such as poor contact, low service life of the cathode, and difficult maintenance; the other is to adopt a carrier mode, that is, the cell piece is loaded into the carrier, and then passes through each process liquid in turn, and a film layer is generated under the action of the electric field, which fundamentally solves many problems of the flow piece mode, so that the batch and automation of cell piece film coating can be realized. However, by adopting the carrier scheme, while the cell piece completes the deposition of the film layer, the area of the carrier itself where the metal is exposed will also be inevitably plated with a certain metal film layer, and if this part of the film layer is not cleaned in time, it will affect the quality of the cell piece in the next film coating period, which is not conducive to the batch and automated production of the cell piece, so the film stripping treatment of the carrier is an important component of the whole line film coating process.

[0003] In order to solve the problem that the carrier itself will be plated with a certain metal film layer in the carrier scheme, affecting the batch and automated production of the cell piece, it is necessary to design a film stripping mechanism that can match the cell piece film coating equipment of the carrier type horizontal film coating equipment. SUMMARY

[0004] In view of the above problems, the utility model provides a film stripping mechanism for the cell piece carrier after film coating, which provides effective post-cleaning treatment and removes the cell piece film coating equipment with excessive metal film etched on the surface.

[0005] The utility model provides a technology scheme that is adopted: a kind of stripping mechanism of battery piece coating equipment, including stripping tank and carrier, the stripping tank is divided into carrier inflow section, stripping process section, carrier outflow section three parts, the carrier inflow section, stripping process section, carrier outflow section tank body bottom are equipped with power device, the power device in the carrier inflow section and carrier outflow section is transmitted carrier by transmission synchronous wheel group, synchronous belt, the power device of stripping process section is transmitted carrier by transmission roller group wheel, the synchronous belt of stripping tank side of stripping process section is equipped with liquid medicine reflux mechanism, the liquid medicine reflux mechanism includes reflux tank, reflux pipe, reflux pipeline, the reflux tank is connected stripping tank bottom by reflux pipe, the reflux pipeline is arranged in stripping tank inner bottom, liquid inlet is equipped on the reflux tank, liquid level meter is equipped in the side wall of reflux tank, the bottom of reflux tank is equipped with circulation pipe, and is connected with circulation pump inlet, the circulation pump determines whether to work according to the liquid level signal of the feedback of liquid level meter, and circulation pump outlet is connected with reflux pipeline.

[0006] Further, the stripping tank top is equipped with stripping tank cover to prevent liquid gas overflow.

[0007] Further, the top of the roller drive side of the stripping tank is equipped with a protective cover to prevent liquid splashing and prevent foreign matter from entering the environment, thereby ensuring the normal operation of the engaging roller.

[0008] Further, the stripping tank two sides correspond to carrier and are equipped with carrier limiting group, the carrier is equipped with pressing plate, and the pressing plate is equipped with conductive spring.

[0009] Further, the liquid level of the inlet end of the carrier inflow section and the outlet end of the carrier outflow section is higher than that of the stripping process section, thereby ensuring that the carrier is always immersed in the stripping liquid environment during transmission in the stripping process section.

[0010] Further, the synchronous belt of the carrier inflow section and the carrier outflow section is equipped with a tensioner group, so that the synchronous belt is always in an effective tension state.

[0011] Further, the bottom of the reflux tank is equipped with a waste pipe connected to the waste main pipe through a control valve.

[0012] From the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages:

[0013] The utility model provides an effective post cleaning treatment for the post-coated battery piece carrier, removes the excess metal film on the surface and etches it away, keeps the carrier in a clean process state before entering the next coating cycle, improves the coating quality of the battery piece, has a simple structure, low equipment cost and easy maintenance, can realize batch and automatic operation, and is a key component of the photovoltaic battery piece wet coating process route. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings constituting a part of the present application are used to provide a further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute an improper limitation on the utility model. In the drawings:

[0015] Fig. 1 It is the arrangement structure schematic diagram of the utility model;

[0016] Fig. 2 It is the shaft side structure schematic diagram of the carrier inflow section and the stripping process section of the utility model;

[0017] Fig. 3 It is the shaft side structure schematic diagram of the stripping process section of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0019] EMBODIMENT

[0020] REFERENCE Figs. 1-3 A stripping mechanism of a battery piece coating equipment, comprising a stripping tank 1 and a carrier 2, carrier limiting groups 5 are arranged on both sides of the stripping tank 1 corresponding to the carrier, a pressing plate 21 is arranged on the carrier 2, and a conductive spring 22 is arranged on the pressing plate, the carrier structure ensures that the bottom copper of the battery piece is in good contact with the cathode of the power supply during coating deposition, the stripping tank 1 is divided into a carrier inflow section L in, a stripping process section Ln and a carrier outflow section L out, the liquid level of the inlet end of the carrier inflow section L in and the outlet end of the carrier outflow section L out is higher than that of the inlet and outlet port of the stripping process section Ln, the inlet end 2a of the carrier inflow section L in and the outlet end 2b of the carrier outflow section L out are higher than the inlet and outlet port 2c of the stripping process section Ln by a certain liquid level difference H, so that the carrier is always soaked in the stripping solution during the transmission process in the stripping process section Ln, and the stripping process section Ln is arranged between the carrier inflow section L in and the carrier outflow section L out. 入 出 入 出 入 出 ​​​​​The power device 21 is arranged at the bottom of each tank body, and the carrier inflow section L 入 and the carrier outflow section L 出 The power device 21 in the carrier inflow section and the carrier outflow section transmits the carrier 2 through a transmission synchronous wheel set 6 and a synchronous belt 7, the power device 21 of the stripping process section transmits the carrier 2 through a transmission roller set wheel 4, the transmission roller set wheel 4 is connected with the synchronous belt 7 of the carrier inflow section and the carrier outflow section at two ends respectively, the transmission synchronous wheel set 6, the synchronous belt 7, the carrier limiting set 5 and the like are made of corrosion-resistant and wear-resistant materials, the stripping process section Ln transmits below the liquid level after the carrier 2 enters the section, the length of the stripping tank of the stripping process section is set according to the thickness of the deposited film layer and the liquid condition, the stripping tank 1 of the stripping process section is provided with a liquid backflow mechanism 10, the liquid backflow mechanism 10 comprises a backflow tank 11, a backflow pipe 12 and a backflow pipeline 13, the backflow tank 11 is connected with the bottom of the stripping tank 1 through the backflow pipe 12, the backflow pipeline 13 is arranged in the bottom of the stripping tank 1 and plays a role of liquid stirring, so that the stripping liquid is in a relatively uniform state, the backflow tank 11 is provided with a liquid inlet 15, the side wall of the backflow tank 11 is provided with a liquid level meter 14, the bottom of the backflow tank 11 is provided with a circulating pipe 16 and is connected with the inlet of a circulating pump 17, the circulating pump 17 determines whether to work according to the liquid level signal fed back by the liquid level meter 14, the outlet of the circulating pump 17 is connected with the backflow pipeline 13, the bottom of the backflow tank 12 is provided with a waste pipe 18, which is connected with a waste pipe main pipe 20 through a control valve 19.

[0021] The stripping tank 1 is provided with a stripping tank cover 3 at the top to prevent the overflow of liquid gas, and the top of the roller drive side of the stripping tank 1 is provided with a protective cover 8 to prevent liquid splashing and prevent foreign matters from entering the environment, so as to ensure the normal work of the meshing roller.

[0022] The synchronous belt 7 of the carrier inflow section and the carrier outflow section is provided with a tensioning wheel set 9, so that the synchronous belt 17 is always in an effective tensioning state.

[0023] The utility model provides effective post cleaning treatment for the battery piece carrier after coating, removes the excess metal film on the surface and etches it away, keeps the carrier in a clean process state before entering the next coating cycle, improves the coating quality of the battery piece, has the advantages of simple structure, low equipment cost and easy maintenance, can realize batch and automatic operation, is the key component of the photovoltaic battery piece wet coating process route.

[0024] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A film removal mechanism for a battery cell coating equipment, characterized in that: The device comprises a stripping tank and a carrier, the stripping tank is divided into a carrier inflow section, a stripping process section and a carrier outflow section, the bottom of the carrier inflow section, the stripping process section and the carrier outflow section is provided with a power device, the power devices in the carrier inflow section and the carrier outflow section transmit the carrier through a synchronous belt and a synchronous wheel group, the power device in the stripping process section transmits the carrier through a transmission roller group, the two ends of the transmission roller group are connected with the synchronous belt in the carrier inflow section and the carrier outflow section, the side of the stripping process section is provided with a liquid backflow mechanism, the liquid backflow mechanism comprises a backflow tank, a backflow pipe and a backflow pipeline, the backflow tank is connected with the bottom of the stripping tank through the backflow pipe, the backflow pipeline is arranged in the bottom of the stripping tank, the backflow tank is provided with an inlet, the sidewall of the backflow tank is provided with a liquid level meter, the bottom of the backflow tank is provided with a circulating pipe and is connected with the inlet of a circulating pump, the circulating pump works according to the liquid level signal fed back by the liquid level meter, the outlet of the circulating pump is connected with the backflow pipeline.

2. The film stripping mechanism of the battery piece film coating equipment according to claim 1, wherein: The top of the stripping tank is provided with a stripping tank cover.

3. The film stripping mechanism of the battery piece film coating apparatus according to claim 1, wherein: The top of the roller drive side of the stripping tank is provided with a protective cover.

4. The film stripping mechanism of the battery piece film coating apparatus according to claim 1, wherein: The two sides of the stripping tank are provided with a carrier limiting group corresponding to the carrier, the carrier is provided with a pressing plate, and the pressing plate is provided with a conductive spring.

5. The film stripping mechanism of the battery piece film coating apparatus according to claim 1, wherein: The liquid level of the inlet end of the carrier inflow section and the outlet end of the carrier outflow section is higher than that of the inlet and outlet ports of the stripping process section.

6. The film stripping mechanism of the battery piece film coating apparatus according to claim 1, wherein: The synchronous belt in the carrier inflow section and the carrier outflow section is provided with a tensioning wheel group.

7. The film stripping mechanism of the battery piece film coating apparatus according to claim 1, wherein: The bottom of the backflow tank is provided with a waste pipe which is connected with a waste main pipe through a control valve.

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