Pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitor

Abstract

The utility model belongs to the technical field of aluminum foil corrosion, and particularly relates to a pretreatment mixing device for aluminum foil corrosion of a lead-free electrolytic capacitor, which comprises a mixing and reacting tank, an aluminum foil driving roller is mounted in the mixing and reacting tank and conveys aluminum foil, and a water pumping pipeline is mounted on the mixing and reacting tank and connected with a water inlet of a conveying pump. A water outlet of the conveying pump is connected with a self-mixing pipeline, the self-mixing pipeline comprises a three-way pipe, the two ends of the three-way pipe are connected with inner pipe bodies, fixed stirring blades are arranged in the inner pipe bodies, and spray heads are installed on the sides, facing the aluminum foil, of the inner pipe bodies. Under the conveying of the conveying pump, the solution flows through the self-mixing pipeline to be fully mixed, and the solution in the lower mixing and reaction tank flows upwards under the action of flow velocity difference during spraying, so that the mixing effect is further improved; reaction liquid sprayed by the spray head can effectively wash and remove air pockets attached to the surface of the aluminum foil.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum foil corrosion, and in particular relates to a pre-treatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors. Background Art

[0002] Aluminum foil is a hot stamping material that is directly rolled into thin sheets of metal aluminum. Its hot stamping effect is similar to that of pure silver foil, so it is also called fake silver foil. In order to improve the corrosion effect of aluminum foil, the oxide film needs to be treated in advance.

[0003] The utility model patent with the authorization announcement number CN210657144U discloses a pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors includes a mixing box; a protective shell, the protective shell is fixedly mounted on the top outer wall of the mixing box; a stirring mechanism, the stirring mechanism is arranged on the mixing box; a connecting plate, the connecting plate is fixedly mounted on one side outer wall of the mixing box; a pump body, the pump body is fixedly mounted on the top of the connecting plate; a first connecting pipe, the first connecting pipe is fixedly mounted on one side of the pump body, and the end of the first connecting pipe away from the pump body extends into the mixing box; a reaction tank, the reaction tank is fixedly mounted on the side of the connecting plate away from the mixing box. The provided pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors has the advantages of fast mixing speed, convenient mixing and high deoxidation efficiency.

[0004] However, the above mechanism has the following problems: the mixing box and the reaction tank are set separately, which occupies a large space and increases the volume of the device; during the reaction process, the surface of the aluminum foil reacts to generate hydrogen, and the gas bag adheres to the surface of the aluminum foil, which affects the full contact between the aluminum foil and the reaction liquid, and thus has an adverse effect on the corrosion effect. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors, so as to solve the problems that the existing pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors is large in size and occupies a large area, and that air bags are attached to the surface of the aluminum foil during the reaction process, affecting the full contact between the aluminum foil and the reaction liquid.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors, including a mixing and reaction tank, an aluminum foil transmission roller is installed inside the mixing and reaction tank, and the aluminum foil transmission roller conveys aluminum foil. A pumping pipeline is installed on the mixing and reaction tank inside the aluminum foil, one end of the pumping pipeline is connected to the water inlet of the delivery pump, and the water outlet of the delivery pump is connected to a self-mixing pipeline, and the self-mixing pipeline includes a three-way pipe, both ends of the three-way pipe are connected to an inner tube body, a fixed stirring blade is arranged inside the inner tube body, and a nozzle is installed on the side of the inner tube body facing the aluminum foil.

[0007] The beneficial effects of the utility model are as follows: under the delivery of the delivery pump, the solution in the mixing and reaction tank flows through the self-mixing pipeline and is fully mixed, and when sprayed from the nozzle, the solution in the mixing and reaction tank below flows upward due to the flow rate difference, thereby further improving the mixing effect, so that the mixing and reaction tank has the function of mixing solutions without affecting the delivery and corrosion of the aluminum foil; the reaction liquid sprayed from the nozzle can effectively flush and remove the air bags attached to the surface of the aluminum foil.

[0008] In order to further improve the flushing effect of the nozzle on the air pockets attached to the surface of the aluminum foil;

[0009] As a further improvement of the above technical solution: the outlet end of the nozzle is arranged to be inclined upward.

[0010] The beneficial effect of this improvement is that the solution sprayed from the nozzle flows upward at an angle, thereby efficiently driving the hydrogen gas bags attached to the surface of the pumping pipeline to break away from the pumping pipeline and flow upward to be discharged.

[0011] In order to effectively ensure the uniformity of the nozzle's flushing of the pumping pipe surface;

[0012] As a further improvement of the above technical solution: the nozzle is a fan-shaped nozzle.

[0013] The beneficial effect of this improvement is that the solution sprayed from the nozzle can completely and effectively flush and remove the air pockets on the surface of the pumping pipeline in the transmission.

[0014] In order to fully ensure the mixing effect of the solution in the inner tube;

[0015] As a further improvement of the above technical solution: the fixed stirring blade is a spiral plate structure, and the number of the fixed stirring blades is multiple, which are arranged in a first-line connection along the axial direction of the inner tube body, and the horizontal rotation angle between the upper and lower adjacent fixed stirring blades is 90 degrees.

[0016] The beneficial effect of this improvement is that the multiple fixed stirring blades arranged and rotated 90 degrees up and down can fully mix the solution flowing in the inner tube body.

[0017] In order to effectively ensure the flushing effect of the nozzle;

[0018] As a further improvement of the above technical solution: the number of the nozzles is multiple and they are arranged at equal intervals along the axial wind direction of the inner tube body, and the axis of the inner tube body is parallel to the surface of the aluminum foil inside the mixing and reaction tank.

[0019] The beneficial effect of this improvement is that a plurality of nozzles arranged parallel to the aluminum foil can spray a plurality of water streams to effectively flush and remove the air pockets attached to the surface of the aluminum foil.

[0020] In order to effectively increase the suction area of ​​the pumping pipeline;

[0021] As a further improvement of the above technical solution: the water pumping pipeline includes an outer tube body and a reducer, the upper bottom end of the reducer is connected to the outer tube body, the lower bottom end of the reducer is connected to the mixing and reaction tank, and the outer tube body is connected to the water inlet of the delivery pump.

[0022] The beneficial effect of this improvement is that the variable diameter setting can effectively increase the pumping area of ​​the delivery pump.

[0023] In order to effectively remove the reaction solution attached to the aluminum foil;

[0024] As a further improvement of the above technical solution: a flattening roller is rotatably installed inside the mixing and reaction tank above the mixing pipeline, and the flattening roller consists of two groups of round rollers symmetrically arranged on the front and back sides of the aluminum foil and connected to the surface of the aluminum foil.

[0025] The beneficial effect of this improvement is that the flattening roller can flatten the surface of the aluminum foil, so that the reaction liquid accumulated in the grooves on the surface of the aluminum foil is squeezed out and falls back into the interior of the mixing and reaction tank under the action of gravity.

[0026] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0028] Figure 2 It is a schematic diagram of the connection between the self-mixing pipeline, the water pumping pipeline and the delivery pump in the utility model;

[0029] Figure 3 It is a cross-sectional structural diagram of the inner tube body in the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the fixed stirring blade in the utility model;

[0031] In the figure: 1. mixing and reaction tank; 2. aluminum foil driving roller; 3. flattening roller; 4. aluminum foil; 5. self-mixing pipeline; 51. tee pipe; 52. inner pipe body; 53. nozzle; 54. fixed stirring blade; 6. water pumping pipeline; 61. outer pipe body; 62. reducer; 7. delivery pump. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0033] Embodiment 1:

[0034] like Figure 1—4 shows: a pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors, comprising a mixing and reaction tank 1, wherein an aluminum foil driving roller 2 is installed inside the mixing and reaction tank 1, and the aluminum foil driving roller 2 conveys aluminum foil 4, and a pumping pipeline 6 is installed on the mixing and reaction tank 1 inside the aluminum foil 4, and one end of the pumping pipeline 6 is connected to the water inlet of a delivery pump 7, and the water outlet of the delivery pump 7 is connected to a self-mixing pipeline 5, and the self-mixing pipeline 5 comprises a three-way pipe 51, and both ends of the three-way pipe 51 are connected to an inner tube body 52, and a fixed stirring blade 54 is arranged inside the inner tube body 52, and a nozzle 53 is installed on the side of the inner tube body 52 facing the aluminum foil 4. Under the delivery of the delivery pump 7, the mixing and reaction The solution in the reaction tank 1 flows through the self-mixing pipeline 5 and is fully mixed. When sprayed from the nozzle 53, the solution in the mixing and reaction tank 1 below flows upward due to the flow rate difference, which further improves the mixing effect, so that the mixing and reaction tank 1 has the function of mixing solutions without affecting the transportation and corrosion of the aluminum foil 4; the reaction liquid sprayed by the nozzle 53 can effectively flush and remove the air bags attached to the surface of the aluminum foil 4, and the outlet end of the nozzle 53 is inclined upward. The solution sprayed by the nozzle 53 flows upward, thereby efficiently driving the hydrogen air bags attached to the surface of the pumping pipeline 6 to break away from the pumping pipeline 6 and flow upward and be discharged. The nozzle 53 is a fan-shaped nozzle, and the solution sprayed by the nozzle 53 can completely remove the pumping in the transmission The air pockets on the surface of the water pipe 6 are effectively flushed and removed. The fixed stirring blade 54 is a spiral plate structure, and the number of the fixed stirring blades 54 is multiple, which are arranged in a row along the axial direction of the inner tube body 52. ​​The horizontal rotation angle between the upper and lower adjacent fixed stirring blades 54 is 90 degrees. The multiple fixed stirring blades 54 arranged by rotating 90 degrees up and down can fully mix the solution flowing in the inner tube body 52. ​​The number of the nozzles 53 is multiple, and they are equidistantly arranged along the axial wind direction of the inner tube body 52. ​​The axis of the inner tube body 52 is parallel to the surface of the aluminum foil 4 inside the mixing and reaction tank 1. The multiple nozzles 53 arranged parallel to the aluminum foil 4 can spray multiple water flows to effectively flush away the air pockets on the surface of the water pipe 6. In addition to the air bag attached to the surface of the aluminum foil 4, the pumping pipeline 6 includes an outer tube body 61 and a reducer 62. The upper bottom end of the reducer 62 is connected to the outer tube body 61, and the lower bottom end of the reducer 62 is connected to the mixing and reaction tank 1. The outer tube body 61 is connected to the water inlet of the delivery pump 7. The setting of the reducer 62 can effectively increase the pumping area of ​​the delivery pump 7. A flattening roller 3 is rotatably installed inside the mixing and reaction tank 1 above the self-mixing pipeline 5. The flattening roller 3 is composed of two groups of round rollers symmetrically arranged on the front and back sides of the aluminum foil 4 and connected to the surface of the aluminum foil 4. The flattening roller 3 can flatten the surface of the aluminum foil 4, so that the reaction liquid accumulated in the groove on the surface of the aluminum foil 4 is squeezed out and falls back to the inside of the mixing and reaction tank 1 under the action of gravity.

[0035] The working principle of the present technical solution is as follows: the solution required for preparing the reaction liquid is quantitatively added into the mixing and reaction tank 1, and then the delivery pump 7 is started, so that the solution in the mixing and reaction tank 1 is sucked into the interior of the outer tube body 61 through the reducer 62, and then delivered to the inner tube body 52 through the three-way pipe 51. In the process of the solution flowing through the inner tube body 52, it is blocked by the diversion of multiple fixed stirring blades 54, so that it is fully mixed inside the inner tube body 52, and then sprayed out through the nozzle 53. Under the influence of the flow rate difference, the mixing and reaction tank 1 The solution at the bottom flows toward the area of ​​water flow sprayed by the nozzle 53 with fast flow rate and low pressure upward, so as to efficiently achieve mixing of the solutions in the mixing and reaction tank 1; after the reaction solution is fully mixed, the aluminum foil 4 is driven to be transported by the existing technology, and the aluminum foil 4 inside the mixing and reaction tank 1 during the preparation of the reaction solution should be marked or removed as a defective product; during the transportation of the aluminum foil 4, the delivery pump 7 continues to operate, and while the aluminum foil 4 is reacting and corroding, the reaction solution sprayed by the nozzle 53 effectively flushes and removes the air bags attached to the surface of the aluminum foil 4.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A pre-treatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors, characterized by: The invention comprises a mixing and reaction tank (1), wherein an aluminum foil transmission roller (2) is installed inside the mixing and reaction tank (1), and the aluminum foil transmission roller (2) transports aluminum foil (4). A water pumping pipeline (6) is installed on the mixing and reaction tank (1) inside the aluminum foil (4), and one end of the water pumping pipeline (6) is connected to the water inlet of a delivery pump (7), and the water outlet of the delivery pump (7) is connected to a self-mixing pipeline (5). The self-mixing pipeline (5) comprises a three-way pipe (51), and both ends of the three-way pipe (51) are connected to an inner tube body (52), and a fixed stirring blade (54) is arranged inside the inner tube body (52). A nozzle (53) is installed on the side of the inner tube body (52) facing the aluminum foil (4).

2. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors according to claim 1, characterized in that: The outlet end of the nozzle (53) is arranged to be inclined upward.

3. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors according to claim 1, characterized in that: The nozzle (53) is a fan-shaped nozzle.

4. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors according to claim 1, characterized in that: The fixed stirring blade (54) is a spiral plate structure, and there are multiple fixed stirring blades (54), which are arranged in a first-order connection along the axial direction of the inner tube body (52), and the horizontal rotation angle between the upper and lower adjacent fixed stirring blades (54) is 90 degrees.

5. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors according to claim 1, characterized in that: The number of the nozzles (53) is multiple and they are arranged at equal intervals along the axial wind direction of the inner tube (52), and the axis of the inner tube (52) is parallel to the surface of the aluminum foil (4) inside the mixing and reaction tank (1).

6. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors according to claim 1, characterized in that: The water pumping pipeline (6) comprises an outer tube body (61) and a reducer (62); the upper bottom end of the reducer (62) is connected to the outer tube body (61); the lower bottom end of the reducer (62) is connected to the mixing and reaction tank (1); and the outer tube body (61) is connected to the water inlet of the delivery pump (7).

7. The pretreatment mixing device for corrosion of aluminum foil of lead-free electrolytic capacitors according to claim 1, characterized in that: A flattening roller (3) is rotatably installed inside the mixing and reaction tank (1) above the self-mixing pipeline (5), and the flattening roller (3) is composed of two groups of round rollers symmetrically arranged on both sides of the front and back sides of the aluminum foil (4) and in contact with the surface of the aluminum foil (4).

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