Safe auxiliary additive adding device

Abstract

The utility model discloses a safety type auxiliary additive adding device which comprises silicon wafer processing equipment, an auxiliary groove is formed in the rear side of the silicon wafer processing equipment, a funnel is inserted into the auxiliary groove, a funnel opening of the funnel is connected with a funnel cover, an overflow pipe and a liquid supply pipe are connected to the funnel cover in an inserted mode, and the other end of the liquid supply pipe is arranged at the bottom of a liquid groove. A shaft rod is rotationally arranged in the liquid tank, one end of the shaft rod is connected with an output shaft of a motor, the motor is mounted on the outer side of the liquid tank, a plurality of stirring rods are uniformly distributed on the shaft rod, and the outer ends of the stirring rods are connected with paddles; the additive is pumped and filled through the pump, so that the problems of splashing, overflowing and the like caused by directly pouring the additive liquid are solved, the waste of the additive is avoided, the cost is saved, the phenomenon that the additive is splashed to the human body and hurts the human body in the adding process is avoided, and the operation safety coefficient is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cells, in particular to a safe auxiliary additive adding device. Background Technique

[0002] Photovoltaic cells use semiconductors as active materials for photoelectric conversion. Photovoltaic cells are a new energy industry developed in the 1990s, with advantages such as low cost, thin thickness, light weight, simple manufacturing process, and can be made into large-area flexible devices. Photovoltaic cells have become one of the most dynamic and vibrant industries in the current new energy field.

[0003] In the wet production process of photovoltaic cells, auxiliary additives need to be manually added to the additive secondary tank behind the machine equipment. During this process, due to manual addition, splashing and overflow of additives will occur during the addition process, resulting in waste of additives, soiling of the machine equipment, affecting the process requirements, and more seriously, it may splash onto people's bodies, eyes and other parts, causing harm to the human body. Content of the Utility Model

[0004] The purpose of the utility model is to provide a safe auxiliary additive adding device for existing problems.

[0005] The utility model is realized through the following technical solutions: a safe auxiliary additive adding device, including a silicon wafer processing device, a secondary tank is installed behind the silicon wafer processing device, a funnel is inserted into the secondary tank, the mouth of the funnel is connected to a funnel cover, an overflow pipe and a liquid supply pipe are inserted into the funnel cover, the other end of the liquid supply pipe is arranged at the bottom of the liquid tank, a liquid pump and a flow meter are arranged on the liquid supply pipe, a shaft rod is rotatably arranged in the liquid tank, one end of the shaft rod is connected to the output shaft of a motor, the motor is installed outside the liquid tank, a plurality of stirring rods are evenly arranged on the shaft rod, and the outer ends of the stirring rods are connected to paddle blades.

[0006] As a further improvement of the above solution, the port of the discharge pipe of the funnel is threadedly connected to the mouth cover and is firmly connected to the mouth cover through a nut. The mouth cover is connected to the liquid port of the secondary tank. A valve is arranged on the discharge pipe of the funnel. By connecting the discharge pipe of the funnel to the mouth cover with a nut, the funnel is firmly installed on the mouth cover, making the funnel and the secondary tank form an integral structure. At the same time, the valve is used to control the on-off of the additive falling into the secondary tank.

[0007] As a further improvement of the above solution, the included angle between the plane of the paddle blade and the axis of the rotating shaft is 30-45°, which is convenient for the paddle blade to more effectively stir the additive in the liquid tank during rotation, making the additive in the liquid tank more uniform.

[0008] As a further improvement to the above solution, the end of the overflow pipe away from the hopper cover is arranged above the liquid tank. The additive in the funnel fails to fall into the secondary tank in time, and the excess additive flows back through the overflow pipe in the funnel for discharge.

[0009] As a further improvement to the above solution, a connecting plate is arranged on the inner edge of the port of the liquid tank for placing a container when adding the additive, and at the same time, it can also prevent the additive in the liquid tank from splashing.

[0010] The utility model has the following advantages compared with the prior art: it has a simple structure, reasonable design, novel and unique idea. By using a flow pump to suck the additive in the liquid tank and add it to the secondary tank, it solves the problems of splashing and overflowing when directly pouring the additive liquid medicine, avoids waste of the additive, saves costs, and will not splash onto the human body during the adding process, causing harm to the human body. The operation safety factor is higher. In addition, to prevent the additive in the funnel from overflowing due to failure to fall into the secondary tank in time, it flows back into the liquid tank through the overflow pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural view in the first direction of the utility model.

[0012] Figure 2 It is a schematic structural view in the second direction of the utility model.

[0013] Figure 3 It is a schematic structural view of the secondary tank installed at the rear side of the silicon wafer processing equipment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following further describes the utility model with reference to the drawings.

[0015] As Figures 1 to 3 shown in , a safe auxiliary additive adding device includes a silicon wafer processing equipment 17. A secondary tank 1 is installed at the rear side of the silicon wafer processing equipment 17. A funnel 2 is inserted into the secondary tank 1. The hopper mouth of the funnel 2 is connected to a hopper cover 3. An overflow pipe 4 and a liquid supply pipe 5 are inserted and connected to the hopper cover 3. The other end of the liquid supply pipe 5 is arranged at the bottom of the inner cavity of a liquid tank 6. A liquid pump 15 and a flow meter 16 are arranged on the liquid supply pipe 5. A shaft rod 7 is rotatably arranged in the liquid tank 6. One end of the shaft rod 7 is connected to the output shaft of a motor 10. The motor 10 is installed outside the liquid tank 6. A plurality of stirring rods 8 are evenly arranged on the shaft rod 7. The outer ends of the stirring rods 8 are connected to blades 9.

[0016] As a further improvement to the above solution, the outlet pipe port of the funnel 2 is threadedly connected to the cover 11 and is firmly connected to the cover 11 through a nut 12. The cover 11 is connected to the liquid port of the auxiliary tank 1. A ball valve 13 is provided on the outlet pipe of the funnel 2. By connecting the outlet pipe of the funnel 2 to the cover 11 with the nut 12, the funnel 2 is firmly installed on the cover 11, making the funnel 2 and the auxiliary tank 1 connected as an integral structure. At the same time, the ball valve 13 is used to control the on-off of the additive falling into the auxiliary tank 1.

[0017] As a further improvement to the above solution, the angle between the plane of the paddle 9 and the axis of the shaft rod 7 is 45°, which is convenient for the paddle 9 to more effectively stir the additive in the liquid tank 6 during rotation, making the additive in the liquid tank 6 more uniform.

[0018] As a further improvement to the above solution, the end of the overflow pipe 4 away from the hopper cover 3 is arranged above the liquid tank 6. The additive in the funnel 2 fails to fall into the auxiliary tank 1 in time, and the excess additive flows back through the overflow pipe 4 in the funnel 2 for discharge.

[0019] As a further improvement to the above solution, a retaining plate 14 is provided on the inner edge of the port of the liquid tank 6, which is used to place the container when adding the additive, and can also prevent the additive in the liquid tank 6 from splashing.

[0020] The working principle of a safe type auxiliary additive adding device: Place the bottom of the container filled with the additive on the retaining plate 14 at the end of the liquid tank 6, pour the additive into the liquid tank 6, and then drive the stirring rod 8 and the paddle 9 to rotate along with the shaft rod 7 through the motor 10 to make the additive more uniform. Then, suck the additive in the liquid tank 6 through the liquid pump 15 into the funnel 2 through the supply pipe 5. Open the ball valve below the funnel 2 to make the additive fall into the auxiliary tank 1. To prevent excessive supply, if the additive in the funnel 2 fails to fall into the auxiliary tank 1 in time, it will return to the liquid tank 6 through the overflow pipe 4. In addition, a flow meter 16 on the supply pipe 5 measures the amount of the additive supplied into the funnel 2.

[0021] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A safe auxiliary additive adding device, comprising a silicon wafer processing device, wherein a secondary tank is installed at the rear side of the silicon wafer processing device, characterized in that: A funnel is inserted into the auxiliary tank, the mouth of the funnel is connected to a tank cover, an overflow pipe and a liquid supply pipe are inserted and connected on the tank cover, the other end of the liquid supply pipe is arranged at the bottom of the liquid tank, a liquid pump and a flow meter are arranged on the liquid supply pipe, an axle rod is rotatably arranged in the liquid tank, one end of the axle rod is connected to the output shaft of the motor, the motor is installed on the outside of the liquid tank, a plurality of stirring rods are evenly arranged on the axle rod, and the outer ends of the stirring rods are connected to paddles.

2. A safe auxiliary additive adding device according to claim 1, characterized in that: The discharge pipe port of the funnel is threadedly connected to the mouth cover and is fastened to the mouth cover by a nut. The mouth cover is connected to the liquid port of the auxiliary tank. A valve is arranged on the discharge pipe of the funnel.

3. A safe auxiliary additive adding device according to claim 1, characterized in that: The angle between the plane of the blade and the axis of the rotating shaft is 30-45°.

4. A safe auxiliary additive adding device according to claim 1, characterized in that: The end of the overflow pipe away from the bucket cover is arranged on the upper part of the liquid tank.

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