A breakthrough force testing device

Abstract

The utility model discloses a kind of swimming penetration force testing devices, including electrophoresis tank current clamp and detection assembly current clamp, the detection assembly current clamp includes four side box fixed frame current clamp, phosphating plate current clamp and sealing cover current clamp, the phosphating plate current clamp is respectively connected by four side box fixed frame current clamp magnetically, the sealing cover current clamp sleeve is connected in four side box fixed frame current clamp outside, the utility model adds sealing cover, it uses two half formula insertion + bolt fixed structure, can be reused, leakage rate is low, replace traditional disposable adhesive tape sealing, improve operating efficiency and reduce cost, closed heating bin and stirring piece combination are combined, pass through cavity structure even conduction heat, cooperate with insulation stirring piece to push tank liquid circulation, better than the mode of traditional bottom bare directly heating, cooperate with the stirring piece of insulating material, can eliminate static heating caused upper and lower layer temperature stratification, especially suitable for temperature sensitive high swimming penetration power coating development, ensure that test condition consistency.

Description

Technical Field

[0001] This utility model mainly relates to the field of electrophoretic coating technology, specifically a device for testing electrophoretic penetration. Background Technology

[0002] Electrophoretic coating is a type of coating applied using an electrocoating process, and it is an important category of water-based coatings. Its core principle is to use an electric field to cause coating particles to migrate directionally and deposit on the workpiece surface, forming a uniform and dense coating film.

[0003] Electrophoretic penetration refers to the ability of electrophoretic coating particles to uniformly deposit and form a film on the surface, cavities, and gaps of a workpiece under the influence of an electric field. Insufficient electrophoretic penetration directly affects the coating quality of complex workpieces. Electrophoretic penetration testing devices are specialized instruments used to determine the electrophoretic penetration of coatings. Their core function is to simulate the actual electrophoretic coating process and evaluate the coating's ability to coat complex workpieces through specific testing methods and structural design. Existing testing components rely on manual sealing of edges with tape after assembly, which is time-consuming and non-reusable. They are also prone to leakage due to wrinkles caused by improper operation. Some electrophoretic tanks use direct exposed heating, which can lead to uneven heat conduction and large temperature differences between the upper and lower layers of the tank solution, affecting the accuracy of coating electrophoretic penetration testing. Utility Model Content

[0004] This utility model addresses the problem that existing technical solutions are too simplistic by providing a penetration force testing device. This device solves the technical problems mentioned in the background section, such as the reliance on manual tape sealing of edges, which is time-consuming and non-reusable.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] An electrophoresis permeability testing device includes an electrophoresis tank and a detection component. The detection component includes a four-sided box fixing frame, phosphating plates, and a sealing cover. The phosphating plates are magnetically connected through the four-sided box fixing frame. The sealing cover is sleeved on the outside of the four-sided box fixing frame. A tank liquid conductive plate is fixedly connected to one end of the bottom wall of the electrophoresis tank. A movable cover is slidably connected to the top of the electrophoresis tank through a groove.

[0007] Furthermore, the bottom wall of the electrophoresis tank has a cavity for installing a closed heating chamber, and the closed heating chamber is equipped with an electric heating tube. The two ends of the inner wall of the electrophoresis tank are fixedly connected to a support plate, and the support plate is located on the opposite side of the conductive plate of the tank liquid.

[0008] Furthermore, a cathode plate and an anode plate are fixedly connected to both ends of the outer wall of the electrophoresis tank. The anode plate is on the same side as the conductive plate of the tank liquid, and the cathode plate is on the same side as the support plate. The electrophoresis tank is provided with a storage compartment for storing the disassembled detection components on the outer wall of the cathode plate side. The storage compartment is provided with multiple partitions inside.

[0009] Furthermore, the main body of the four-sided box fixing frame is made of acrylic material, and the outer edge is covered with permanent magnets for magnetically attracting phosphated plates. The four-sided box fixing frames are separated by phosphated plates. The permanent magnet surfaces on the outside of the four-sided box fixing frames at both ends are attracted with phosphated plates. The phosphated plate has two circular through holes that run from top to bottom.

[0010] Furthermore, the sealing cover is composed of a frame and a silicone layer, forming a semi-enclosed structure, and the sealing cover is set with a hollow surface at the position corresponding to the circular through hole of the phosphate plate.

[0011] Furthermore, both the frame and the silicone layer of the sealing cover are two-part interlocking structures, and the sealing covers are connected by hexagonal bolts and corresponding matching slots. In addition, L-shaped locking blocks are fixed on the outer wall of the frame of the sealing cover, and slots for interlocking with the L-shaped locking blocks are opened on the surface of the tray.

[0012] Furthermore, the bottom of the movable cover is rotatably connected to a stirring component, and the top of the movable cover is provided with a driving mechanism. Limiting holes are provided at both ends of the movable cover and at the sliding groove where the electrophoresis tank is slidably connected to the movable cover. Multiple limiting holes are evenly distributed at the top of the electrophoresis tank. The limiting holes of the movable cover and the electrophoresis tank are connected by limiting bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By combining acrylic insulating material with permanent magnets, phosphated plates can be adsorbed and fixed in a short time. Compared with traditional bolts and clips, it saves assembly time and adds a sealing cover. It adopts a two-part insertion + bolt fixing structure, which can be reused, has a low leakage rate, and replaces traditional disposable tape sealing, improving operation efficiency and reducing costs.

[0015] 2. The combination of a closed heating chamber and a stirring component, with an electric heating tube inside the heating chamber and a heat-conducting metal component at the top, allows for uniform heat conduction through the cavity structure. Combined with an insulated stirring component, it promotes the circulation of the bath liquid, which is superior to the traditional method of direct heating with the bottom exposed. The insulated stirring component can eliminate the temperature stratification between the upper and lower layers caused by static heating, making it particularly suitable for the research and development of high-penetration coatings that are sensitive to temperature, and ensuring consistent testing conditions.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the electrophoresis tank structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the detection component structure of this utility model;

[0020] Figure 4 This is an exploded view of the detection component of this utility model.

[0021] Numbering on the map:

[0022] 1. Electrophoresis tank; 101. Enclosed heating chamber; 102. Tray; 103. Cathode plate; 104. Anode plate; 105. Storage chamber; 2. Detection components; 3. Four-sided box fixing frame; 4. Phosphating plate; 5. Sealing cover; 6. Tank solution conductive plate; 7. Movable cover. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Please refer to the appendix carefully. Figure 1-4 An electrophoresis penetration testing device includes an electrophoresis tank 1 and a detection component 2. The detection component 2 includes a four-sided box fixing frame 3, phosphating plates 4 and a sealing cover 5. The phosphating plates 4 are magnetically connected through the four-sided box fixing frame 3. The sealing cover 5 is sleeved on the outside of the four-sided box fixing frame 3. A tank liquid conductive plate 6 is fixedly connected to one end of the bottom wall of the electrophoresis tank 1. A movable cover 7 is slidably connected to the top of the electrophoresis tank 1 through a groove.

[0026] In this embodiment, as Figure 2 As shown, the bottom wall of the electrophoresis tank 1 has a cavity for installing the closed heating chamber 101, and the closed heating chamber 101 is equipped with an electric heating tube. The two ends of the inner wall of the electrophoresis tank 1 are fixedly connected to the support plate 102, and the support plate 102 is located on the opposite side of the conductive plate 6 of the tank liquid.

[0027] With the above structure, the enclosed heating chamber 101 has a built-in electric heating tube, and its top is a heat-conducting metal part. The heat is evenly conducted into the tank through the cavity structure and the top metal plate. With the help of the stirring component, the temperature deviation of the tank liquid can be controlled within ±0.5℃, which is better than the traditional method of direct heating with the bottom exposed. The tray 102 can avoid the instability caused by placing the detection component 2 directly in the tank.

[0028] In this embodiment, as Figure 1 and Figure 2 As shown, a cathode plate 103 and an anode plate 104 are fixedly connected to both ends of the outer wall of the electrophoresis tank 1, respectively. The anode plate 104 is on the same side as the conductive plate 6 of the tank liquid, and the cathode plate 103 is on the same side as the support plate 102. The electrophoresis tank 1 has a storage compartment 105 on the outer wall of the cathode plate 103 side for storing the disassembled detection components 2. The storage compartment 105 has multiple partitions inside.

[0029] Through the above structure, the design of the electrode side-by-side layout and storage compartment 105 solves the practical problems of "messy wires, easily damaged components, and inefficient operation" in the traditional electrophoresis tank 1 by optimizing space and re-engineering processes. It combines "functionality" and "humanization", which not only improves testing efficiency, but also reduces human error through standardized storage and flow design, and reduces the risk of electrode clips falling off due to wires crossing above the electrophoresis tank 1.

[0030] In this embodiment, as Figure 4 As shown, the main body of the four-sided box fixing frame 3 is made of acrylic material, and the outer edge is covered with permanent magnets for magnetically attracting the phosphated plate 4. The four-sided box fixing frames 3 are separated by phosphated plates 4. The permanent magnet surfaces of the four-sided box fixing frames 3 at both ends are attracted with phosphated plates 4. The phosphated plate 4 has two circular through holes that run from top to bottom.

[0031] With the above structure, the phosphate plate 4 can be attracted to the edge of the fixed frame with one hand using a permanent magnet, saving assembly time compared to traditional clamps.

[0032] In this embodiment, as Figure 3 and Figure 4 As shown, the sealing cover 5 is composed of a frame and a silicone layer, forming a semi-enclosed structure. The sealing cover 5 is set with a hollow surface at the position corresponding to the circular through hole of the phosphate plate 4. The sealing cover 5 is made of fluorosilicone with a thickness of 3-5mm and a corrugated structure on the surface.

[0033] With the above structure, the silicone layer of the sealing cover 5, with a thickness of 3-5mm and a corrugated structure, can form a deformation of 20%-30% after compression, which can fill the tiny gap between the phosphate plate 4 and the frame, and the leakage rate is lower than that of ordinary flat silicone.

[0034] In this embodiment, as Figure 3 and Figure 4 As shown, the frame and silicone layer of the sealing cover 5 are both two-part interlocking structures, and the sealing covers 5 are connected by hexagonal bolts and corresponding matching slots. Furthermore, the outer wall of the frame of the sealing cover 5 is fixed with L-shaped clips, and the surface of the tray 102 is provided with slots for interlocking with the L-shaped clips.

[0035] With the above structure, traditional tape bonding relies on manual operation, which takes a long time, cannot be reused, and can cause wrinkles if not handled properly. The sealing cover 5 can be assembled in a short time by first inserting and then fixing with bolts. Disassembly only requires loosening the bolts, which improves efficiency and is especially suitable for high-frequency testing. Moreover, compared with the disposable consumable of traditional tape, the sealing cover 5 can be reused.

[0036] In this embodiment, as Figure 1 and Figure 2 As shown, a stirring component is rotatably connected to the bottom of the movable cover 7, and a driving mechanism is provided on the top of the movable cover 7. Limiting holes are provided at both ends of the movable cover 7 and at the sliding groove where the electrophoresis tank 1 is slidably connected to the movable cover 7. Multiple limiting holes are distributed at equal intervals on the top of the electrophoresis tank 1. The limiting holes of the movable cover 7 and the electrophoresis tank 1 are connected by limiting bolts. The stirring component at the bottom of the movable cover 7 is made of insulating material.

[0037] With the above structure, the rotating insulated stirring component drives the circulation of the tank liquid, which allows the heat generated by the closed heating chamber 101 to be quickly diffused, eliminating the temperature stratification between the upper and lower layers caused by static heating. This is especially suitable for the research and development of high-penetration coatings that are sensitive to temperature. If the stirring structure is used during the testing process, it can also simulate the state of fluids with different flow rates and test the migration ability of the coating in a dynamic electric field, which more realistically reflects the actual coating effect of complex workpieces (such as the interior cavity of a car). The movable cover 7 can slide to any test area through the slide groove. With the help of equidistant limiting holes and limiting bolts, it can be positioned in a short time. When not in use, it can be disassembled, which provides operational flexibility.

[0038] The specific operating procedure of this utility is as follows: First, assemble the detection component 2, seal the two long sides and one short side of the phosphate plate 4 with insulating tape (the folded edge width is about 1cm) to avoid coating deposition in non-test areas, and use the edges of the four-sided box fixing frame 3 to sequentially adsorb the phosphate plate 4, and the two-half sealing cover 5 forms a semi-enclosed structure.

[0039] To facilitate assembly, each phosphate plate 4 and four-sided box fixing frame 3 can be inserted into one of the two halves of the sealing cover 5 when assembling. This process continues until all four-sided box fixing frames 3 and phosphate plates 4 are installed. Then, the other sealing cover 5 is inserted and connected to the original one. Since the groove depth of one sealing cover 5 is greater than the depth of the through-thread groove of the other sealing cover 5, it is fixed by passing hexagonal bolts through the groove threads. The tightness of the bolts can be judged by the exposed length of the bolts to ensure that the silicone layer fits tightly against the edge of the four-sided box and prevents the solution from leaking from the gaps.

[0040] Pour the electrophoretic coating working solution into the electrophoresis tank 1 through the level gauge until the specified level is reached. Then, start the electric heating tube in the closed heating chamber 101. Heat is conducted to the coating in the tank through the top metal plate. At the same time, the temperature is monitored by the temperature sensor and the display device. Heat to the required test temperature (28-32℃). During the heating process, start the drive mechanism on the top of the moving cover 7 to drive the bottom insulating agitator to rotate, accelerate the convection of the tank liquid, and avoid local overheating or uneven temperature of the coating at the bottom. After reaching the appropriate temperature, turn off the heating power.

[0041] The assembled detection component 2 is inserted into the slot of the tray 102 through the L-shaped clip on the outer wall of the sealing cover 5, ensuring that the four boxes are vertically immersed in the bath liquid.

[0042] The cathode plate 103 is connected to the top of the phosphating plate 4 via a current clamp, and the anode plate 104 is connected to the conductive plate 6 of the bath liquid via a current clamp, forming a current loop. The positive and negative terminals of the external power supply are then connected to the anode plate 104 and the cathode plate 103 via current clamps, respectively.

[0043] Set the electrophoresis voltage, time and other parameters according to the type of coating (e.g., the cathodic electrophoresis voltage is usually 150-300V, and the time is 2-3 minutes). Turn on the power supply, and the coating particles move and deposit through the four through holes of the phosphate plate under the action of the electric field.

[0044] When studying the penetration force of coatings in dynamic fluids, the flow state of the tank liquid in the production line can be simulated by stirring, and the difference in coating distribution can be observed. The movable cover 7 is slid to a suitable position through the chute and fixed with a limit bolt to prevent the component from shifting during stirring.

[0045] After electrophoresis, disconnect the power supply, remove the detection component 2, and rinse the uncured coating on the surface of the phosphate plate 4 with deionized water. Dry the coating according to the coating curing process, and use a film thickness gauge to measure the film thickness of each phosphate plate 4. The film thickness on the front (inner) side of the last phosphate plate 4 furthest from the anode plate 104 is the surface film thickness G, and the film thickness on the front (outer) side of the phosphate plate 4 closest to the anode plate 104 is the surface film thickness A. Through the above process, the device can systematically complete the permeability test, and optimize the test conditions by combining the stirring function to ensure the accuracy and repeatability of the results.

[0046] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A permeability testing device, comprising an electrophoresis tank (1) and a detection component (2), characterized in that: The detection component (2) includes a four-sided box fixing frame (3), a phosphating plate (4) and a sealing cover (5). The phosphating plate (4) is magnetically connected through the four-sided box fixing frame (3). The sealing cover (5) is sleeved on the outside of the four-sided box fixing frame (3). One end of the bottom wall of the electrophoresis tank (1) is fixedly connected to a tank liquid conductive plate (6). The top of the electrophoresis tank (1) is slidably connected to a movable cover (7) through a groove.

2. The penetrability testing device according to claim 1, characterized in that: The bottom wall of the electrophoresis tank (1) is provided with a cavity for installing a closed heating chamber (101), and the closed heating chamber (101) is provided with an electric heating tube. The two ends of the inner wall of the electrophoresis tank (1) are fixedly connected with a support plate (102), and the support plate (102) is located on the opposite side of the conductive plate (6) of the tank liquid.

3. The penetrability testing device according to claim 1, characterized in that: The electrophoresis tank (1) has a cathode plate (103) and an anode plate (104) fixedly connected to both ends of its outer wall. The anode plate (104) is on the same side as the conductive plate (6) of the tank liquid, and the cathode plate (103) is on the same side as the support plate (102). The electrophoresis tank (1) has a storage compartment (105) on the outer wall of the cathode plate (103) for storing the disassembled detection components (2). The storage compartment (105) has multiple partitions inside.

4. The penetrability testing device according to claim 1, characterized in that: The main body of the four-sided box fixing frame (3) is made of acrylic material. The outer edge of the frame is covered with permanent magnets for magnetically attracting phosphated plates (4). The four-sided box fixing frames (3) are separated by phosphated plates (4). The permanent magnet surfaces of the four-sided box fixing frames (3) at both ends are attracted with phosphated plates (4). The phosphated plates (4) have two circular through holes running from top to bottom.

5. The penetrability testing device according to claim 1, characterized in that: The sealing cover (5) is composed of a frame and a silicone layer, and has a semi-enclosed structure. The sealing cover (5) is set as a hollow surface at the position corresponding to the circular through hole of the phosphate plate (4).

6. The penetrating power testing device according to claim 1, characterized in that: The frame and silicone layer of the sealing cover (5) are both two-part plug-in structures, and the sealing covers (5) are connected by hexagonal bolts and corresponding matching slots. The outer wall of the frame of the sealing cover (5) is fixed with L-shaped clips, and the surface of the tray (102) is opened with corresponding slots for plugging into the L-shaped clips.

7. The penetrating power testing device according to claim 1, characterized in that: The bottom of the movable cover (7) is rotatably connected to a stirring component, and the top of the movable cover (7) is provided with a driving mechanism. Limiting holes are opened at both ends of the movable cover (7) and at the sliding groove where the electrophoresis tank (1) is slidably connected to the movable cover (7). Multiple limiting holes are evenly distributed at the top of the electrophoresis tank (1). The limiting holes of the movable cover (7) and the electrophoresis tank (1) are connected by a limiting bolt.

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