Mixing temperature control equipment for production of high-throwing-rate electrophoretic paint

Abstract

The utility model relates to mixed temperature control equipment for producing an electrophoretic coating with a high throwing rate. The mixed temperature control equipment comprises an electrophoresis tank, a temperature control assembly and a stirring assembly, the temperature control assembly comprises a box body, temperature control liquid is contained in the box body, a cavity is formed in the tank wall of the electrophoresis tank and wraps the wall face of the electrophoresis tank, and the stirring assembly comprises a driving part, a stirring stick and stirring blades. The driving piece is connected to the outer side of the electrophoresis tank, and the stirring stick is rotationally connected to the inner wall of the electrophoresis tank; according to the mixed temperature control equipment, a communicated cooling cavity I is formed in a stirring rod and a stirring blade connected to the surface of the stirring rod, so that temperature control liquid can enter the cooling cavity I from a notch when entering a cavity; and the driving part can drive the stirring blades to rotate and can also enable the temperature control liquid flowing in the first cooling cavity to exchange heat with the electrophoretic coating, so that the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrophoretic coating production, and in particular relates to a mixing temperature control device for producing high-penetration electrophoretic coating. Background Art

[0002] Electrophoretic paint, also known as electrophoretic coating, is still used by many people instead of "electrophoretic coating". As the defects of conventional spraying continue to emerge, electrophoresis has become more and more popular, and electrophoretic paint has also been constantly updated, from anode electrophoretic paint to cathode electrophoretic paint, from single-component electrophoretic paint to two-component electrophoretic paint. The development of electrophoretic paint has also promoted the development of electrophoretic coating, so that more products no longer use spraying technology but electrophoresis.

[0003] There are many process parameters that affect electrophoretic coating, and the temperature of electrophoretic paint is one of the important parameters. When the temperature of the electrophoretic liquid is high, the film-forming rate is fast, but the paint film has a rough appearance and will also cause the paint to deteriorate; when the temperature is low, the amount of electrodeposition is small, the film-forming is slow, and the coating is thin and dense. During the coating process, part of the electrical energy is converted into heat energy during electrodeposition, and the mechanical friction in the circulation system generates heat, which will cause the temperature of the paint to rise. Moreover, as the number of electrophoretic workpieces increases, the temperature of the electrophoretic liquid will also rise.

[0004] After searching, it was found that a temperature-controllable electrophoresis tank was disclosed in a Chinese patent document (application number: 202220935163.9), comprising a tank body and a box body arranged on one side of the tank body, wherein the four side walls of the tank body are provided with a connected cooling cavity, the upper end of the cooling cavity is provided with a water outlet, and the lower end is provided with a water injection port, the water injection port is connected to the box body through an inlet pipe, and the water outlet is connected to the box body through a circulating water pipe, and a flow switch valve and a water pump are provided in sequence on the inlet pipe along the water inlet direction, and a temperature sensor and a stirring mechanism are also provided inside the tank body. A refrigerator and a heater are arranged inside the box. Although the application drives the water flow to form a water circulation by arranging a box, a water pump and a cooling chamber, and performs heat exchange on the electrophoretic liquid (electrophoretic paint) in the electrophoretic tank, so that the temperature in the electrophoretic tank is automatically controlled through the cooperation of the controller and the temperature sensor, the cooling chamber is only arranged on the side walls of the tank body and the stirring structure is close to the bottom of the tank body. As a result, when the electrophoretic liquid is heat exchanged, the electrophoretic liquid near the middle of the tank body (the part away from the side walls of the tank body) cannot be heat exchanged faster, thereby reducing the working efficiency. Summary of the invention

[0005] The purpose of the utility model is to provide a mixing temperature control device with a simple structure and reasonable design in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A mixing temperature control device for producing high-permeability electrophoretic coatings, comprising an electrophoretic tank, a temperature control component and a stirring component, wherein the temperature control component comprises a box body, wherein the box body contains a temperature control liquid, a cavity is provided in the tank wall of the electrophoretic tank, and the cavity covers the wall surface of the electrophoretic tank, the stirring component comprises a driving member, a stirring rod and a stirring blade, the driving member is connected to the outside of the electrophoretic tank, the stirring rod is rotatably connected to the inner wall of the electrophoretic tank, one end of the stirring rod passes through the cavity and extends to the outside of the electrophoretic tank to be connected to the driving end of the driving member, and the other end extends into the cavity and is rotatably connected to the inner wall of the cavity, the stirring blade is connected to the surface of the stirring rod, the stirring blade and the stirring rod are hollow inside to form a connected cooling cavity 1, notches are provided at the positions of the two ends of the stirring rod located inside the cavity, so that the cavity and the cooling cavity 1 are connected, a liquid inlet and a liquid outlet are provided on the surface of the electrophoretic tank, both of which are connected to the cavity, and the inner walls of the liquid inlet and the liquid outlet are respectively connected to a liquid inlet pipe and a liquid outlet pipe, both of which extend into the box body.

[0008] As a further optimization scheme of the present utility model, the cavity includes cavity one, cavity two and cavity three, cavity one surrounds the wall surface arranged at the upper part of the electrophoresis tank, cavity two covers the wall surface of the lower part of the electrophoresis tank, the inner wall of the cavity is connected with a partition to separate cavity one and cavity two, cavity three is arranged on the bottom wall surface of the electrophoresis tank, the groove opened at one end of the stirring stick connects cavity one and cooling cavity one, and the groove at the other end connects cavity two and cooling cavity one, the liquid inlet is connected with cavity one, and the liquid outlet is connected with cavity three.

[0009] As a further optimization solution of the utility model, a rapid temperature control component is provided in the electrophoresis tank for accelerating the control of the temperature of the electrophoresis coating.

[0010] As a further optimization scheme of the utility model, the rapid temperature control component includes a temperature control stick connected to the surface of the stirring stick, the interior of the temperature control stick is hollow to form a connecting cavity, and the connecting cavity is connected to the cooling cavity.

[0011] As a further optimization scheme of the utility model, the temperature control stick includes a connecting part and an installing part. The connecting part is provided with two groups, which are respectively connected to the two ends of the stirring stick located inside the electrophoresis tank. The two ends of the installing part are respectively connected to the two ends of the two groups of connecting parts away from the stirring stick.

[0012] As a further optimization solution of the utility model, the rapid temperature control component also includes an expansion panel, which is connected to the surface of the mounting portion, and a second cooling cavity is opened inside the expansion panel, and the second cooling cavity is connected to the connecting cavity.

[0013] As a further optimization solution of the utility model, the expansion panel is spiral-shaped.

[0014] As a further optimization solution of the present invention, the driving member is a motor.

[0015] The beneficial effect of the utility model is that the utility model opens a connected cooling cavity in the stirring rod and the stirring blade connected to the surface of the stirring rod, so that the temperature control liquid can enter the cooling cavity from the groove when entering the cavity, so that the driving part can drive the stirring blade to rotate while also enabling the temperature control liquid flowing in the cooling cavity to perform heat exchange with the electrophoretic coating, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the electrophoresis tank of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the inner wall of the electrophoresis tank of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the expansion panel of the utility model (partial enlarged view).

[0020] In the figure: 1. electrophoresis tank; 2. temperature control component; 21. box; 3. stirring component; 31. driving member; 32. stirring rod; 33. stirring blade; 4. rapid temperature control component; 41. temperature control rod; 411. connecting part; 412. mounting part; 42. connecting cavity; 43. expansion panel; 44. cooling cavity II; 5. cavity; 51. cavity I; 52. cavity II; 53. cavity III; 6. cooling cavity I; 7. notch; 8. liquid inlet pipe; 9. liquid outlet pipe; 10. partition. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] like Figures 1 to 3The partial structure shown is a mixing temperature control equipment for the production of high-permeability electrophoretic coatings, including an electrophoretic tank 1, a temperature control component 2, a bracket and a stirring component 3, the temperature control component 2 includes a box 21, a refrigerator, a heater and a temperature sensor, the temperature sensor is arranged on the inner wall of the electrophoretic tank 1, the refrigerator and the heater are arranged inside the box 21, the electrophoretic tank 1 and the box 21 are both arranged on the bracket, the box 21 is filled with a temperature control liquid, a cavity 5 is opened in the tank wall of the electrophoretic tank 1, the cavity 5 covers the wall surface of the electrophoretic tank 1, the stirring component 3 includes a driving member 31, a stirring rod 32 and a stirring blade 33, the driving member 31 is connected to the outside of the electrophoretic tank 1, the stirring rod 32 is rotatably connected to the inner wall of the electrophoretic tank 1, and one end of the stirring rod 32 passes through the cavity 5 and extends to the outside of the electrophoretic tank 1 It is connected to the driving end of the driving member 31, and the other end extends into the cavity 5 and is rotatably connected to the inner wall of the cavity 5. The stirring blade 33 is connected to the surface of the stirring rod 32. The stirring blade 33 and the stirring rod 32 are hollow inside to form a connected cooling cavity 6. The two ends of the stirring rod 32 are located inside the cavity 5 and are provided with slots 7, so that the cavity 5 and the cooling cavity 6 are connected. The surface of the electrophoresis tank 1 is provided with a liquid inlet and a liquid outlet, both of which are connected to the cavity 5. The inner walls of the liquid inlet and the liquid outlet are respectively connected with a liquid inlet pipe 8 and a liquid outlet pipe 9, both of which extend into the box body 21. A flow switch valve and a water pump are sequentially provided on the liquid inlet pipe 8 along the water inlet direction. A controller is provided on the outside of the electrophoresis tank 1, and the flow switch valve, water pump, temperature sensor, driving member 31, refrigerator, heater and the controller are electrically connected.

[0023] In actual use, the temperature control liquid enters the cavity 5 from the liquid inlet and flows from the slot 7 to the cooling chamber 6. When the driving member 31 is started to drive the stirring blade 33 to rotate, the refrigerant passing through the cooling chamber 6 will perform heat exchange with the electrophoretic coating in the electrophoretic tank 1, thereby improving the heat exchange efficiency.

[0024] It should be noted that the temperature control liquid can be any liquid that can perform heat exchange. In this solution, the temperature control liquid can be set to water.

[0025] like Figure 3 In the structure shown, the cavity 5 includes cavity one 51, cavity two 52 and cavity three 53. The cavity one 51 surrounds the wall surface arranged at the upper part of the electrophoresis tank 1, and the cavity two 52 covers the wall surface of the lower part of the electrophoresis tank 1. The inner wall of the cavity 5 is connected with a partition 10 to separate cavity one 51 and cavity two 52. The cavity three 53 is arranged on the bottom wall surface of the electrophoresis tank 1. The slot 7 opened at one end of the stirring rod 32 connects cavity one 51 and cooling cavity one 6, and the slot 7 at the other end connects cavity two 52 and cooling cavity one 6. The liquid inlet is connected with cavity one 51, and the liquid outlet is connected with cavity three 53.

[0026] It should be noted that cavity one 51, cooling cavity one 6, cavity two 52 and cavity three 53 are connected in sequence. Through this arrangement, the circulating temperature control liquid will flow through cavity one 51, cooling cavity one 6, cavity two 52 and cavity three 53 in sequence, so that the refrigerant liquid stays in cavity 5 and cooling cavity one 6 for a longer time, so that the refrigerant liquid can more effectively exchange heat with the electrophoretic coating and reduce energy consumption.

[0027] like Figures 1 to 4 In the partial structure shown, a rapid temperature control component 4 is provided in the electrophoresis tank 1 for accelerating the temperature control of the electrophoresis coating.

[0028] Furthermore, the rapid temperature control component 4 includes a temperature control stick 41 connected to the surface of the stirring stick 32, and the interior of the temperature control stick 41 is hollow to form a connecting cavity 42, and the connecting cavity 42 is connected to the cooling cavity 6.

[0029] It should be noted that the temperature control rod 41 is in a “[” shape.

[0030] Furthermore, the temperature control rod 41 includes a connecting portion 411 and a mounting portion 412. The connecting portion 411 is provided with two groups, which are respectively connected to the two ends of the stirring rod 32 located inside the electrophoresis tank 1, and the two ends of the mounting portion 412 are respectively connected to the two ends of the two groups of connecting portions 411 away from the stirring rod 32.

[0031] Furthermore, the rapid temperature control component 4 also includes an expansion panel 43 , which is connected to the surface of the mounting portion 412 . A second cooling cavity 44 is provided inside the expansion panel 43 , and the second cooling cavity 44 is connected to the connecting cavity 42 .

[0032] Furthermore, the expansion panel 43 is spiral-shaped.

[0033] It should be noted that by providing a temperature control rod 41 and an expansion panel 43 and respectively opening a connecting cavity 42 and a cooling cavity 44 communicating with each other on the temperature control rod 41 and the expansion panel 43, the contact area between the refrigerant and the electrophoretic coating can be increased, thereby further improving the efficiency of heat exchange. When the driving member 31 drives the stirring rod 32 to rotate, it also drives the temperature control rod 41 and the expansion panel 43 connected to the surface of the temperature control rod 41 to rotate. This arrangement can not only improve the heat exchange efficiency, but also prevent the formation of precipitates and condensates in the electrophoretic coating.

[0034] Furthermore, the driving member 31 is a motor.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A mixing and temperature control device for producing high-penetration electrophoretic coatings, comprising an electrophoretic tank (1), a temperature control component (2) and a stirring component (3), characterized in that: The temperature control component (2) comprises a box (21), wherein the box (21) contains a temperature control liquid; a cavity (5) is provided in the wall of the electrophoresis tank (1), wherein the cavity (5) covers the wall of the electrophoresis tank (1); the stirring component (3) comprises a driving member (31), a stirring rod (32) and a stirring blade (33); the driving member (31) is connected to the outside of the electrophoresis tank (1); the stirring rod (32) is rotatably connected to the inner wall of the electrophoresis tank (1); one end of the stirring rod (32) passes through the cavity (5) and extends to the outside of the electrophoresis tank (1) to be connected to the driving end of the driving member (31); and the other end extends to The stirring blade (33) is rotatably connected to the inner wall of the cavity (5), the stirring blade (33) is connected to the surface of the stirring rod (32), the stirring blade (33) and the stirring rod (32) are hollow inside, forming a connected cooling cavity (6), and the two ends of the stirring rod (32) are located inside the cavity (5) and are provided with slots (7), so that the cavity (5) and the cooling cavity (6) are connected, and the surface of the electrophoresis tank (1) is provided with a liquid inlet and a liquid outlet, both of which are connected to the cavity (5), and the inner walls of the liquid inlet and the liquid outlet are respectively connected with a liquid inlet pipe (8) and a liquid outlet pipe (9), both of which extend into the box body (21).

2. The mixing and temperature control equipment for producing high-penetration electrophoretic coating according to claim 1, characterized in that: The cavity (5) comprises a cavity one (51), a cavity two (52) and a cavity three (53); the cavity one (51) surrounds a wall surface arranged at the upper part of the electrophoresis tank (1); the cavity two (52) covers a wall surface at the lower part of the electrophoresis tank (1); a partition (10) is connected to the inner wall of the cavity (5) to separate the cavity one (51) and the cavity two (52); the cavity three (53) is arranged on the bottom wall surface of the electrophoresis tank (1); a notch (7) provided at one end of the stirring rod (32) connects the cavity one (51) and the cooling cavity one (6); the notch (7) at the other end connects the cavity two (52) and the cooling cavity one (6); the liquid inlet is connected to the cavity one (51); and the liquid outlet is connected to the cavity three (53).

3. The mixing and temperature control equipment for producing high-electrophoretic-permeability electrophoretic coating according to claim 2, characterized in that: A rapid temperature control component (4) is arranged in the electrophoresis tank (1) for accelerating the temperature control of the electrophoresis coating.

4. The mixing and temperature control equipment for producing high-electrophoretic-permeability electrophoretic coating according to claim 3, characterized in that: The rapid temperature control component (4) comprises a temperature control rod (41) connected to the surface of the stirring rod (32); the interior of the temperature control rod (41) is hollow to form a connecting cavity (42); and the connecting cavity (42) is connected to the cooling cavity (6).

5. The mixing and temperature control equipment for producing high-electrophoretic-permeability electrophoretic coating according to claim 4, characterized in that: The temperature control rod (41) comprises a connecting portion (411) and a mounting portion (412). The connecting portion (411) is provided with two groups, which are respectively connected to the two ends of the stirring rod (32) located inside the electrophoresis tank (1), and the two ends of the mounting portion (412) are respectively connected to the two ends of the two groups of connecting portions (411) away from the stirring rod (32).

6. The mixing and temperature control equipment for producing high-electrophoretic-permeability electrophoretic coating according to claim 5, characterized in that: The rapid temperature control component (4) further comprises an expansion panel (43), wherein the expansion panel (43) is connected to the surface of the mounting portion (412), and a second cooling cavity (44) is provided inside the expansion panel (43), and the second cooling cavity (44) is communicated with the connecting cavity (42).

7. The mixing and temperature control equipment for producing high-electrophoretic-permeability electrophoretic coating according to claim 6, characterized in that: The expansion panel (43) is spiral-shaped.

8. A mixing and temperature control device for producing high-electrophoretic-permeability electrophoretic coating according to any one of claims 1 to 7, characterized in that: The driving member (31) is a motor.

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