Production proportioning device for phosphorus-free alkali polishing additive

Abstract

The utility model discloses a production proportioning device of a non-phosphorus alkali polishing additive, which comprises a mixing tank, the upper end of the mixing tank is connected with a plurality of proportioning tanks, the upper ends of the proportioning tanks are provided with second feed pipes, a first piston is arranged in the mixing tank, the lower end of the first piston is provided with a plurality of first guide rods, and the lower end of the first guide rods is provided with second feed pipes. A plurality of first guide holes are formed in the lower end of the mixing tank, the first guide rods are in one-to-one correspondence with the first guide holes, the first guide rods are sleeved with first springs, a first baffle ring is arranged at the upper end of the batching tank, and the second feeding pipe and the second discharging pipe correspond to the upper portion of the first baffle ring. A plurality of quantifying mechanisms are arranged at the upper end of the mixing tank and are in one-to-one correspondence with the batching tanks. According to the production proportioning device for the phosphorus-free alkali polishing additive, raw materials can be automatically measured, the accuracy of the measured raw materials can be guaranteed, and the quality of the phosphorus-free alkali polishing additive is guaranteed through mixing of the mixing tank.

Description

Technical Field

[0001] The utility model belongs to the technical field of production, and in particular relates to a production proportioning device for a non-phosphate alkali polishing additive. Background Art

[0002] In the process of photovoltaic cell manufacturing, etching is required after double-sided texturing and single-sided diffusion. The front side of the single-sided diffusion texturing surface is left, and the other side and the thin side must be polished to remove the velvet surface and diffusion layer, so that a good PN junction is left on the front side, the insulating side, and a flat polished surface is left on the back side, which reduces the surface recombination rate and creates a foundation for coating, laser windowing, and screen aluminum back field to form a good back passivation. The role of additives in alkaline polishing: The additives contain hydrophilic substances, which form a good contact with the diffusion surface with silicon dioxide, blocking or slowing down the front reaction, and helping to degas on the back side. At the same time, the reaction rate of alkali and silicon is greater than that of silicon dioxide. That is to say, the role of additives in alkaline polishing is to slow down or block the front reaction and accelerate the back reaction to achieve a polishing effect.

[0003] When producing alkaline polishing additives, various raw materials need to be accurately measured and mixed. However, the measurement of raw materials is currently done manually, and the accuracy of the measurement cannot be guaranteed, so that the quality of the phosphorus-free alkaline polishing additive cannot be guaranteed. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the utility model provides a production proportioning device for a phosphorus-free alkali polishing additive.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A production proportioning device for a phosphorus-free alkali polishing additive comprises a mixing tank, wherein a plurality of first feed pipes are provided at the upper end of the mixing tank, a first discharge pipe is provided at the lower end of the mixing tank, a dispensing tank is connected to the other end of the first feed pipe, a second feed pipe is provided at the upper end of the dispensing tank, a first control valve is provided on the second feed pipe, a second discharge pipe is provided at the upper end of the dispensing tank, the second discharge pipe is connected to the first feed pipe, a second control valve is provided on the second discharge pipe, a first piston is provided in the mixing tank, a plurality of first guide rods are provided at the lower end of the first piston, a plurality of first guide holes are provided at the lower end of the mixing tank, the first guide rods correspond to the first guide holes one-to-one, a first spring is sleeved on the first guide rod, the first spring corresponds to between the first piston and the dispensing tank, a first baffle ring is provided at the upper end of the dispensing tank, the first baffle ring matches the first piston, the second feed pipe and the second discharge pipe correspond to the upper part of the first baffle ring, a plurality of quantitative mechanisms are provided at the upper end of the mixing tank, and the quantitative mechanisms correspond to the dispensing tank one-to-one.

[0007] Further, the quantitative mechanism includes a first mounting plate, a first limiting groove is provided on the first mounting plate, a first sliding block is provided in the first limiting groove, a first connecting rod is provided at the lower end of the first piston, a first through hole is provided at the lower end of the dosing tank, the first connecting rod matches the first through hole, a first push-pull rod is provided at the lower end of the first connecting rod, the other end of the first push-pull rod is hinged to the upper end of the first sliding block, a first positioning block is provided at one end of the first limiting groove close to the center of the mixing tank, and a first sensor is provided on the first positioning block.

[0008] Furthermore, first slide grooves are provided at both ends of the first slider, first slide bars are provided at both ends of the first limiting groove, the first slide bars correspond one-to-one to the first slide grooves, a first stopper is provided at one end of the first slider close to the first positioning block, and the first stopper matches the first sensor.

[0009] Furthermore, second slide grooves are provided at both ends of the first positioning block, the second slide grooves correspond to the first slide bars one by one, and a first threaded hole is provided at the upper end of the first positioning block, and a first bolt is provided in the first threaded hole.

[0010] Furthermore, the first limiting groove is provided with a first scale.

[0011] The utility model discloses a production proportioning device for a phosphate-free alkali polishing additive. Compared with the prior art, the utility model has the beneficial effect that it can automatically measure raw materials and ensure the accuracy of the measured raw materials, and mix them through a mixing tank to ensure the quality of the phosphate-free alkali polishing additive. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a preferred embodiment provided by the utility model.

[0013] Figure 2 It is a partial structural schematic diagram of a preferred embodiment provided by the utility model.

[0014] Figure 3 It is a structural schematic diagram of a batching tank according to a preferred embodiment of the utility model.

[0015] Figure 4 It is a structural schematic diagram of a quantitative mechanism of a preferred embodiment provided by the utility model.

[0016] Figure 5 It is a structural schematic diagram of the first positioning block of the preferred embodiment provided by the utility model.

[0017] The reference numerals include: 100, mixing tank; 110, first feed pipe; 120, first discharge pipe; 200, mixing tank; 210, second feed pipe; 211, first control valve; 220, second discharge pipe; 221, second control valve; 230, first piston; 240, first guide rod; 241, first spring; 250, first connecting rod; 260, first retaining ring; 270, first guide hole; 280, first through hole; 290, first push-pull rod; 300, first mounting plate; 310, first limiting groove; 311, first slide bar; 320, first slider; 330, first stop block; 340, first positioning block; 341, second slide groove; 342, first threaded hole; 350, first sensor. DETAILED DESCRIPTION

[0018] The utility model discloses a production proportioning device for a non-phosphate alkali polishing additive. The specific implementation manner of the utility model is further described below in conjunction with a preferred embodiment.

[0019] See attached figure Figure 1-5 , Figure 1 It is a structural schematic diagram of a preferred embodiment provided by the utility model. Figure 2 It is a partial structural schematic diagram of a preferred embodiment provided by the utility model. Figure 3 2 is a schematic diagram of the structure of a batching tank 200 according to a preferred embodiment of the present invention. Figure 4 It is a structural schematic diagram of the quantitative mechanism of the preferred embodiment provided by the utility model. Figure 5 It is a structural schematic diagram of the first positioning block 340 of the preferred embodiment provided by the utility model.

[0020] Preferred embodiments.

[0021] The present embodiment provides a production proportioning device for a phosphate-free alkali polishing additive, including a mixing tank 100, wherein a plurality of first feed pipes 110 are provided at the upper end of the mixing tank 100, a first discharge pipe 120 is provided at the lower end of the mixing tank 100, a mixing tank 200 is connected to the other end of the first feed pipe 110, a second feed pipe 210 is provided at the upper end of the mixing tank 200, a first control valve 211 is provided on the second feed pipe 210, a second discharge pipe 220 is provided at the upper end of the mixing tank 200, the second discharge pipe 220 is connected to the first feed pipe 110, a second control valve 221 is provided on the second discharge pipe 220, a first piston 230 is provided in the mixing tank 100, and the first piston 2 A plurality of first guide rods 240 are provided at the lower end of the mixing tank 100, and a plurality of first guide holes 270 are provided at the lower end of the mixing tank 100, and the first guide rods 240 correspond to the first guide holes 270 one by one. A first spring 241 is sleeved on the first guide rod 240, and the first spring 241 corresponds to between the first piston 230 and the batching tank 200. A first baffle ring 260 is provided at the upper end of the batching tank 200, and the first baffle ring 260 matches the first piston 230. The second feed pipe 210 and the second discharge pipe 220 correspond to the upper part of the first baffle ring 260. A plurality of quantitative mechanisms are provided at the upper end of the mixing tank 100, and the quantitative mechanisms correspond to the batching tank 200 one by one.

[0022] Further, the quantitative mechanism includes a first mounting plate 300, a first limiting groove 310 is provided on the first mounting plate 300, a first slider 320 is provided in the first limiting groove 310, a first connecting rod 250 is provided at the lower end of the first piston 230, a first through hole 280 is provided at the lower end of the dosing tank 200, the first connecting rod 250 matches the first through hole 280, a first push-pull rod 290 is provided at the intersection of the lower end of the first connecting rod 250, the other end of the first push-pull rod 290 is hinged to the upper end of the first slider 320, a first positioning block 340 is provided at one end of the first limiting groove 310 close to the center of the mixing tank 100, and a first sensor 350 is provided on the first positioning block 340.

[0023] Furthermore, first sliding grooves are provided at both ends of the first slider 320, first sliding bars 311 are provided at both ends of the first limiting groove 310, the first sliding bars 311 correspond one-to-one to the first sliding grooves, and a first stopper 330 is provided at one end of the first slider 320 close to the first positioning block 340, and the first stopper 330 matches the first sensor 350.

[0024] Furthermore, second slide grooves 341 are provided at both ends of the first positioning block 340 , and the second slide grooves 341 correspond to the first slide bar 311 one by one. A first threaded hole 342 is provided at the upper end of the first positioning block 340 , and a first bolt is provided in the first threaded hole 342 .

[0025] Furthermore, the first limiting groove 310 is provided with a first scale.

[0026] Working principle: Slide the first positioning block 340, determine the amount of raw materials that need to be weighed in the corresponding batching tank 200 according to the first scale, and fix the first positioning block 340 with the first bolt after confirmation. The first control valve 211 is opened, and the raw materials are fed into the batching tank 200. The raw materials continuously squeeze the first piston 230, and the first piston 230 drives the first connecting rod 250 to descend, so that the first push-pull rod 290 pushes the first slider 320 to move until the first slider 320 moves to the position of the first positioning block 340. The first stopper 330 senses the first sensor 350, so that the first control valve 211 is closed, and the second control valve 221 is opened. The first spring 241 pushes the first piston 230 to rise again, so that the raw materials in the batching tank 200 are fed into the mixing tank 100, and then mixed and stirred in the mixing tank 100 to prepare the phosphate-free alkali polishing additive.

[0027] It is worth mentioning that the technical features such as the first scale involved in this utility model patent application should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the utility model points of this utility model patent. This utility model patent will not be further elaborated.

[0028] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A production and proportioning device for a phosphorus-free alkali polishing additive, characterized in that: The invention comprises a mixing tank (100), wherein the upper end of the mixing tank (100) is provided with a plurality of first feed pipes (110), the lower end of the mixing tank (100) is provided with a first discharge pipe (120), the other end of the first feed pipe (110) is connected to a batching tank (200), the upper end of the batching tank (200) is provided with a second feed pipe (210), the second feed pipe (210) is provided with a first control valve (211), the upper end of the batching tank (200) is provided with a second discharge pipe (220), the second discharge pipe (220) is connected to the first feed pipe (110), the second discharge pipe (220) is provided with a second control valve (221), a first piston (230) is provided in the mixing tank (100), the lower end of the first piston (230) is provided with a plurality of first guide valves (211), and the mixing tank (100) is provided with a plurality of first guide valves (211). A guide rod (240) is provided at the lower end of the mixing tank (100), and the first guide rods (240) correspond to the first guide holes (270) one by one. A first spring (241) is sleeved on the first guide rod (240), and the first spring (241) corresponds to between the first piston (230) and the batching tank (200). A first baffle ring (260) is provided at the upper end of the batching tank (200), and the first baffle ring (260) matches the first piston (230). The second feed pipe (210) and the second discharge pipe (220) correspond to the upper part of the first baffle ring (260). A plurality of quantitative mechanisms are provided at the upper end of the mixing tank (100), and the quantitative mechanisms correspond to the batching tank (200) one by one.

2. The production and proportioning device of the phosphate-free alkali polishing additive according to claim 1 is characterized in that: The quantitative mechanism comprises a first mounting plate (300), the first mounting plate (300) is provided with a first limiting groove (310), a first sliding block (320) is provided in the first limiting groove (310), a first connecting rod (250) is provided at the lower end of the first piston (230), a first through hole (280) is provided at the lower end of the mixing tank (200), the first connecting rod (250) matches the first through hole (280), a first push-pull rod (290) is hingedly provided at the lower end of the first connecting rod (250), the other end of the first push-pull rod (290) is hingedly connected to the upper end of the first sliding block (320), a first positioning block (340) is provided at one end of the first limiting groove (310) close to the center of the mixing tank (100), and a first sensor (350) is provided on the first positioning block (340).

3. The production and proportioning device of the phosphate-free alkali polishing additive according to claim 2 is characterized in that: The first sliding grooves are provided at both ends of the first sliding block (320), the first sliding bars (311) are provided at both ends of the first limiting groove (310), the first sliding bars (311) correspond to the first sliding grooves one by one, and the first blocking block (330) is provided at one end of the first sliding block (320) close to the first positioning block (340), and the first blocking block (330) matches the first sensor (350).

4. The production and proportioning device of the phosphate-free alkali polishing additive according to claim 3 is characterized in that: The first positioning block (340) is provided with second sliding grooves (341) at both ends, the second sliding grooves (341) correspond one-to-one to the first sliding bar (311), the upper end of the first positioning block (340) is provided with a first threaded hole (342), and the first threaded hole (342) is provided with a first bolt.

5. The production and proportioning device of the phosphate-free alkali polishing additive according to claim 4 is characterized in that: The first limiting groove (310) is provided with a first scale.

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