Cooling circulation mechanism and anodic oxidation tank

Abstract

The utility model belongs to the technical field of anodic oxidation equipment, and particularly relates to a cooling circulation mechanism and an anodic oxidation tank, the cooling circulation mechanism comprises a liquid inlet pipe and a liquid outlet pipe which are arranged in a liquid cavity in a penetrating mode, and ports, outside the liquid cavity, of the liquid inlet pipe and the liquid outlet pipe are connected in series through a circulation pump. A pipeline, in the liquid cavity, of the liquid inlet pipe is distributed along the vertical face of the inner cavity, a plurality of liquid through holes are formed in a pipe body, an air blowing pipe arranged along the bottom of the liquid cavity is arranged between the liquid inlet pipes, and the liquid through holes are formed towards the air blowing pipe. Liquid circulation is established in the tank body to enable the liquid to move, so that the conduction efficiency of the liquid temperature is improved, and the balance of the liquid temperature is kept. Meanwhile, the liquid inlet pipe is provided with the liquid through hole which changes in size according to the liquid flowing direction, and the temperature difference between the pipe head and the pipe tail is adjusted through flow, so that the liquid temperature is further guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of anodizing equipment, and in particular relates to a cooling circulation mechanism and an anodizing tank. Background Art

[0002] Anodizing is the electrochemical oxidation of metals or alloys. Under the corresponding electrolyte and specific process conditions, a layer of oxide film is formed on the anode due to the action of an external current. The film material is very sensitive to temperature during the reaction process, which will directly lead to the effect of film formation, so constant temperature control in the tank is very important.

[0003] Patent CN210742761U discloses a constant temperature system for an anodizing tank, comprising an oxidation tank, a heat dissipation component and a temperature sensor arranged in the oxidation tank. A controller and a display screen are also arranged on the outer wall of the oxidation tank. The heat dissipation component is evenly arranged in the oxidation tank, and the temperature sensor is evenly arranged between the heat dissipation components, so that the temperature sensor can monitor the temperature at different depths in the oxidation tank in real time, making the temperature control in the oxidation tank more accurate and stable. The heat dissipation component is arranged in an array on the inner wall of the oxidation tank along the depth direction of the oxidation tank. A thermoelectric cooling sheet is arranged on the inner wall of the heat dissipation pipe in the heat dissipation component, which can cool the pipe wall of the heat dissipation pipe. The heat dissipation pipe is located at different depths in the oxidation tank, so that the temperature of the tank liquid at different positions in the oxidation tank can be basically kept flat, thereby improving the quality of the oxidation film. The overall structure is simple and the cost is low.

[0004] In the above scheme, a plurality of heat dissipation pipes are arranged in an array in the tank body, so that the heat can be controlled at different depths in the tank body to maintain the temperature balance of the tank liquid. However, the liquid in the tank body is relatively static, and the efficiency of temperature control only by heat conduction of the liquid itself is too low. Especially when the volume of the tank body is large, the larger gap will cause the temperature control efficiency to further decrease, and more heat dissipation pipes need to be installed for operation, and the manufacturing and operating costs may not necessarily be reduced. Utility Model Content

[0005] The purpose of the utility model is to provide a cooling circulation mechanism and an anodic oxidation tank that can solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The cooling circulation mechanism includes a liquid inlet pipe and a liquid outlet pipe which are passed through the liquid cavity. The ports of the liquid inlet pipe and the liquid outlet pipe outside the liquid cavity are connected in series by a circulation pump. The pipeline of the liquid inlet pipe in the liquid cavity is distributed along the vertical surface of the inner cavity and a plurality of liquid holes are opened on the pipe body. An air blowing pipe arranged along the bottom of the liquid cavity is arranged between the liquid inlet pipes, and the liquid holes are opened toward the air blowing pipe.

[0008] In the cooling circulation mechanism, the liquid inlet pipe includes a main pipe and a branch pipe, one end of the main pipe is connected to the liquid outlet pipe through the circulation pump, and the other end of the main pipe is connected to the branch pipe, and the branch pipe is distributed along the side elevation of the liquid chamber.

[0009] In the cooling circulation mechanism, a plurality of liquid through holes of different sizes are provided on the arc surface of the branch pipe, and the sizes of the liquid through holes gradually increase along the flow direction of the liquid in the branch pipe.

[0010] In the cooling circulation mechanism, a plurality of liquid holes of the same size are opened on the arc surface of the branch pipe, and each of the liquid holes is provided with an adjustment block of different sizes, and the size of the adjustment block gradually decreases along the liquid flow direction in the branch pipe.

[0011] In the cooling circulation mechanism, the liquid cavity includes two liquid inlet pipes, which are respectively introduced from opposite sides of the liquid cavity, one of which is arranged close to the bottom of the liquid cavity, and the other is arranged above the bottom surface of the liquid cavity.

[0012] In the cooling circulation mechanism, the air blowing pipe is arranged along the axial direction of the liquid inlet pipe, and a plurality of air blowing holes are provided on the upper curved surface of the air blowing pipe.

[0013] In the cooling circulation mechanism, both ends of the air blowing pipe are connected with air supply pipes, and the air supply pipes pass out from the top along the side wall of the liquid chamber.

[0014] The utility model also provides an anodizing tank, comprising a tank body. The anodizing tank comprises the cooling circulation mechanism, and the liquid cavity is opened in the tank body.

[0015] In the anodizing tank, the liquid inlet pipe is arranged along the inner wall of the tank body, and the air blowing pipe is arranged close to the bottom surface of the tank body.

[0016] In the anodizing tank, cathode plates are arranged on two opposite inner walls of the tank body, and a shielding baffle is arranged between the cathode plate and the liquid inlet pipe.

[0017] The advantages of the utility model are:

[0018] The liquid circulation is established in the tank to make the liquid move, thereby improving the conduction efficiency of the liquid temperature and maintaining the balance of the liquid temperature. At the same time, a liquid hole with a size that changes according to the flow direction of the liquid is opened on the liquid inlet pipe to adjust the temperature difference between the pipe head and the pipe tail through the flow rate to further ensure the liquid temperature.

[0019] An air blowing pipe is also arranged at the bottom of the tank body. The bubbles released from the air outlet almost cover the liquid cavity, so that the liquid in the tank body can be stirred and flowed more fully, and the liquid far away from the liquid outlet pipe port can also quickly enter the liquid outlet pipe, avoiding that only part of the liquid in the tank body is circulating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the overall transverse cross-sectional structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the overall longitudinal section structure of the utility model.

[0023] In the figure, there are a liquid inlet pipe 1, a liquid hole 11, a main pipe 12, a branch pipe 13, an adjustment block 14, a liquid outlet pipe 2, a circulation pump 3, an air blowing pipe 4, an air supply pipe 41, a tank body 5, a cathode plate 51, and a shielding baffle 52. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the utility model and the accompanying drawings to further describe the technical solution of the utility model, but the utility model is not limited to these embodiments.

[0025] Example 1

[0026] like Figure 1-Figure 3 As shown, the cooling circulation mechanism includes a liquid inlet pipe 1 and a liquid outlet pipe 2 which are passed through the liquid cavity, and the ports of the liquid inlet pipe 1 and the liquid outlet pipe 2 outside the liquid cavity are connected in series by a circulation pump 3. It is characterized in that the pipeline of the liquid inlet pipe 1 in the liquid cavity is distributed along the vertical surface of the inner cavity and a plurality of liquid holes 11 are opened on the pipe body, and an air blowing pipe 4 arranged along the bottom of the liquid cavity is provided between the liquid inlet pipes 1, and the liquid through hole 11 is opened toward the air blowing pipe 4.

[0027] That is, a liquid circulation is established in the tank body to make the liquid move, thereby improving the conduction efficiency of the liquid temperature and maintaining the balance of the liquid temperature. At the same time, a liquid hole whose size changes according to the flow direction of the liquid is opened on the liquid inlet pipe, and the temperature difference between the pipe head and the pipe tail is adjusted by flow rate to further ensure the liquid temperature. An air blowing pipe is also set at the bottom of the tank body, and the bubbles released from the air outlet almost cover the liquid cavity, so that the liquid in the tank body can be stirred and flowed more fully, and the liquid far away from the liquid outlet port can also quickly enter the liquid outlet pipe, avoiding that only part of the liquid in the tank body is circulating.

[0028] In this embodiment, the liquid inlet pipe 1 includes a main pipe 12 and a branch pipe 13. One end of the main pipe 12 is connected to the liquid outlet pipe 2 through the circulation pump 3, and the other end of the main pipe 12 is connected to the branch pipe 13. The branch pipe 13 is distributed along the side elevation of the liquid chamber.

[0029] A space for placing the target and the material needs to be reserved in the liquid cavity, so the branch pipe 13 can only be arranged close to the side wall of the tank body 5 .

[0030] In this embodiment, a plurality of liquid through holes 11 of different sizes are provided on the arc surface of the branch pipe 13 , and the size of the liquid through holes 11 gradually increases along the flow direction of the liquid in the branch pipe 13 .

[0031] That is, gradually expanding holes are opened on the branch pipe 13 according to the direction of liquid flow, and the liquid flow rate is controlled by using holes of different sizes at various positions of the liquid inlet pipe 1, so as to offset the difference in temperature loss at the head and tail ends of the liquid inlet pipe 1, thereby balancing the temperature difference caused by the one-way pipe.

[0032] In this embodiment, the liquid chamber includes two liquid inlet pipes 1, which are respectively introduced from opposite sides of the liquid chamber, one of which is arranged close to the bottom of the liquid chamber, and the other is arranged above the bottom of the liquid chamber.

[0033] The two oppositely arranged liquid inlet pipes 1 are staggered up and down to effectively balance the temperature difference between the upper and lower layers of liquid in the liquid chamber, avoiding the slow cooling rate of the upper liquid affecting the change in the thickness of the surface film formed on the upper material, thereby causing differences in the dyeing rate.

[0034] In this embodiment, the air blowing pipe 4 is arranged along the axial direction of the liquid inlet pipe 1 , and a plurality of air blowing holes are opened on the upper curved surface of the air blowing pipe 4 .

[0035] The coolant flowing out from the wall of the liquid inlet pipe 1 just enters the air outlet area of ​​the air blower pipe 4. Under the disturbance of the bubbles, the cold and hot liquids merge with each other more quickly to stabilize the temperature.

[0036] Preferably, both ends of the air blowing tube 4 are connected with air supply tubes 41, and the air supply tubes 41 pass out from the top along the side wall of the liquid chamber.

[0037] The air pipe 4 is laid at the bottom of the tank 5, and the rising bubbles are used to accelerate the flow of the liquid, thereby improving the exchange of the liquid temperature to achieve a balance. No air holes are provided on the air supply pipe 41 that sends the air pipe 4 to the bottom to prevent the lateral bubbles from disturbing the bottom bubbles rising from the bottom.

[0038] Example 2

[0039] On the basis of the technical solution of Example 1, the setting method of the liquid through hole 11 is improved. A plurality of liquid through holes 11 of the same size are opened on the arc surface of the branch pipe 13. Adjustment blocks 14 of different sizes are clamped in each liquid through hole 11. The size of the adjustment block 14 gradually decreases along the flow direction of the liquid in the branch pipe 13.

[0040] A slide groove for disassembling and mounting the adjusting block 14 is provided on the wall of the liquid hole 11 . The operator can change the radial liquid discharge rate of the branch pipe 13 by mounting the adjusting blocks 14 of different sizes in the liquid hole 11 according to actual use needs.

[0041] Example 3

[0042] The technical solution in Example 1 is applied to an anodizing tank, and a liquid cavity is opened in the tank body 5. The liquid inlet pipe 1 is arranged along the inner wall of the tank body 5, and the air blowing pipe 4 is arranged close to the bottom surface of the tank body 5.

[0043] Cathode plates 51 are arranged on two opposite inner walls of the tank body 5 , and a shielding baffle 52 is arranged between the cathode plate 51 and the liquid inlet pipe 1 to prevent bubbles from directly flowing to the cathode plate 51 .

[0044] Usage process:

[0045] (1) Preheating: Turn on the water, electricity and gas of the anode line normally and keep them in normal operation;

[0046] (2) Start the oxidation tank cooling system: automatically start the oxidation tank cooling circulation system at the bottom layer and manually start the middle layer cooling circulation system. When the temperature reaches the PMP control temperature of 18±0.5℃ and remains constant, normal production can be carried out;

[0047] (3) Start aeration: Manually open the four aeration valves and adjust them until they are visually uniform;

[0048] (4) Feeding: The overhead crane automatically takes the target and the material and places them on the "V"-shaped copper seat of the oxidation tank. The rectifier automatically starts and outputs current and voltage for welding;

[0049] (5) Discharging: After the set oxidation time is completed, the overhead crane automatically calls the flying target value to the post-oxidation water washing tank and the post-processing station to complete the oxidation process;

[0050] (6) The entire process of feeding, oxidation and discharging is completed, and the product is uniformly film-formed.

[0051] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A cooling circulation mechanism, comprising a liquid inlet pipe (1) and a liquid outlet pipe (2) penetrating a liquid cavity, wherein the ports of the liquid inlet pipe (1) and the liquid outlet pipe (2) outside the liquid cavity are connected in series by a circulation pump (3), characterized in that: The pipeline of the liquid inlet pipe (1) in the liquid cavity is distributed along the vertical surface of the inner cavity and a plurality of liquid through holes (11) are opened on the pipe body. An air blowing pipe (4) arranged along the bottom of the liquid cavity is arranged between the liquid inlet pipes (1), and the liquid through holes (11) are opened towards the air blowing pipe (4).

2. The cooling cycle mechanism according to claim 1, characterized in that: The liquid inlet pipe (1) comprises a main pipe (12) and a branch pipe (13); one end of the main pipe (12) is connected to the liquid outlet pipe (2) via the circulation pump (3); the other end of the main pipe (12) is connected to the branch pipe (13); and the branch pipe (13) is distributed along the side elevation of the liquid chamber.

3. The cooling cycle mechanism according to claim 2, characterized in that: A plurality of liquid through holes (11) of different sizes are provided on the arc surface of the branch pipe (13), and the size of the liquid through holes (11) gradually increases along the flow direction of the liquid in the branch pipe (13).

4. The cooling cycle mechanism according to claim 2, characterized in that: A plurality of liquid-passing holes (11) of the same size are provided on the arc surface of the branch pipe (13), and an adjustment block (14) of different sizes is clamped in each of the liquid-passing holes (11), wherein the size of the adjustment block (14) gradually decreases along the flow direction of the liquid in the branch pipe (13).

5. The cooling cycle mechanism according to claim 1, characterized in that: The liquid chamber comprises two liquid inlet pipes (1), which are respectively introduced from opposite sides of the liquid chamber, wherein one of the liquid inlet pipes (1) is arranged close to the bottom of the liquid chamber, and the other of the liquid inlet pipes (1) is arranged above the bottom surface of the liquid chamber.

6. The cooling cycle mechanism according to claim 1, characterized in that: The air blowing pipe (4) is arranged along the axial direction of the liquid inlet pipe (1), and a plurality of air blowing holes are provided on the upper curved surface of the air blowing pipe (4).

7. The cooling cycle mechanism according to claim 6, characterized in that: Both ends of the air blowing pipe (4) are connected to air supply pipes (41), and the air supply pipes (41) are passed out from the top along the side wall of the liquid chamber.

8. An anodizing tank, comprising a tank body (5), characterized in that: The anodizing tank comprises the cooling circulation mechanism according to any one of claims 1 to 7, and the liquid chamber is opened in the tank body (5).

9. The anodizing tank according to claim 8, characterized in that: The liquid inlet pipe (1) is arranged along the inner wall of the tank body (5), and the air blowing pipe (4) is arranged close to the bottom surface of the tank body (5).

10. The anodizing tank according to claim 8, characterized in that: Cathode plates (51) are arranged on two opposite inner walls of the tank body (5), and a shielding baffle (52) is arranged between the cathode plate (51) and the liquid inlet pipe (1).

Images