Modular integrated permeation tank structure applied to fluorescence permeation detection lines

Abstract

This invention discloses a modular integrated structure for a fluorescence penetrant testing line, belonging to the field of fluorescence penetrant testing technology. It employs a penetrant tank, a drain tank, and a filter tank to form an integrated modular penetrant tank structure, enabling the circulation and filtration of the penetrant. Multiple downward-sloping penetrant tracks, fully submerged in the penetrant, are arranged within the penetrant tank. The inclined tracks are suitable for ring-shaped products, allowing for long-distance transport and penetrant transport without the need for any clamping mechanism. During continuous rolling and flipping, the penetrant effectively ensures full contact between all ends of the product and the penetrant, improving the penetration effect. Furthermore, by adding a combination mechanism of an electric pusher cylinder and a flipping component at the lower conveying end of the penetrant tracks, the permeated product is flipped outwards into the drain tank, achieving an unobstructed penetrant route of "directional inclined transport, long-distance rolling penetrant transport, and continuous rolling draining."

Description

Technical Field

[0001] This invention relates to the field of fluorescence penetrant detection technology, and more specifically, to a modular penetrant tank integrated structure for use in fluorescence penetrant detection lines. Background Technology

[0002] Fluorescent penetrant testing is a commonly used non-destructive testing method. It uses a penetrant containing fluorescent dye to penetrate the tiny pores or defects on the surface of the object being tested. After removing excess penetrant, ultraviolet light is used to irradiate the defects to make the fluorescent dye in the defects glow, thus achieving rapid and accurate detection of defects on the surface of the object being tested. The penetrant tank is a key component of the fluorescent penetrant testing system.

[0003] However, existing technologies for testing products using fluorescence permeation mostly require positioning the product using a clamping structure. The clamping mechanism is then used to move the product within the permeation tank. For example, patent CN111948221A relates to "A Fluorescent Tank Apparatus and Detection Method for Immersing Steering Knuckles." This apparatus uses a chain to move the steering knuckle within the fluorescent tank, and a fluorescence detection hanger is mounted on the chain to position the steering knuckle. While this allows the steering knuckle to move from the permeation tank to the buffer chamber and reflux chamber, the need for positioning between the fluorescence detection hanger and the product hinders rapid operation. Furthermore, the fixed contact surface between the two prevents the contact area of ​​the product from being permeated by the penetrant, thus limiting the detection capabilities.

[0004] For example, patent CN222671709U involves a fluorescent penetrant detection device. A bearing collar is fitted into a collar holder, and then a spray nozzle sprays fluorescent penetrant onto the surface of the object to be tested. However, since the bearing collar is fitted laterally onto the horizontally set collar holder by relying on the shaft hole, and the spray nozzle is fixed vertically downward, the position of each end face of the bearing collar is difficult to change during the penetrant process, making it difficult to achieve uniform spraying of the agent to all parts of the bearing collar. To address the above problems, a modular penetrant tank integrated structure for use in fluorescent penetrant detection lines is proposed. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems, and a modular integrated structure for a permeation tank used in fluorescence permeation detection lines is provided.

[0006] The objective of this invention can be achieved through the following technical solution: a modular integrated structure of a permeation tank for use in a fluorescence permeation detection line, comprising a horizontally arranged permeation tank, a draining tank, and a filter tank that is interconnected with both, wherein the filter tank is circulatedly connected to the inside of the permeation tank through a return pipe;

[0007] The upper conveying end of the permeation tank away from the drain tank is equipped with a feeding component for conveying the product to be tested. The permeation tank is fixedly installed with multiple permeation rollers that are adapted to the feeding component and are inclined downwards towards the side away from the feeding component. The return pipe is fixed with a spray head that penetrates the inner wall of the permeation tank and corresponds to the position of the upper conveying end of the permeation roller.

[0008] The permeation tank is equipped with limiting components and material turning components that act on the upper and lower ends of the permeation rollers on the left and right sides respectively. The permeation tank is fixed with electric push cylinders that drive the material turning components to lift and lower at the front and rear ends near the drain tank.

[0009] The material turning assembly includes a lifting seat fixedly installed on the telescopic ends of a pair of electric push cylinders. Positioning plates are fixed on the opposite end walls of the pair of lifting seats. A flipping plate is rotatably installed between the pair of positioning plates. Multiple material receiving structures corresponding to the positions of the permeation rollers are fixed on the flipping plate.

[0010] Furthermore, the feeding assembly includes a feeding slide that is inclined downward and embedded in the upper end of the permeation tank and is connected to a plurality of feeding slides corresponding to the positions of the permeation rollers. The outer ends of the plurality of feeding slides are connected to a discharge plate. The discharge plate has a discharge groove that is connected to the feeding slides. The end of the feeding slide away from the discharge plate is fixed with a baffle channel that extends to the upper conveying end of the permeation rollers, and the bottom end of the baffle channel has a discharge slot.

[0011] Furthermore, a mounting cavity for embedding and installing the feeding slide is provided on one side of the upper end of the permeation tank, and the material blocking channel is an L-shaped structure extending upward away from the feeding slide, with the material dropping slot corresponding to the top of the conveying end on the permeation roller.

[0012] Furthermore, several through holes are provided on each end face of the permeation channel, the internal width of the permeation channel is slightly larger than the thickness of the product to be tested, and the internal height of the permeation channel is smaller than the inner radius of the product to be tested.

[0013] Furthermore, the receiving structure includes an arc-shaped receiving plate fixed to the bottom of the flipping plate and having the same width as the inside of the permeation channel. The upper sides of the arc-shaped receiving plate are fixed with side guide disks two that are concentric with it. The inner end face of the flipping plate is provided with an arc-shaped surface that is adapted to the structure of the side guide disks two.

[0014] Furthermore, the bottom wall of the lower conveying end of the permeation roller is provided with a hollow groove corresponding to the position of the arc-shaped receiving plate, and the end of the arc-shaped receiving plate away from the flipping plate is provided with an extension portion that is set upward along the inclined surface of the permeation roller and fitted into the hollow groove.

[0015] Furthermore, the limiting component includes an arc-shaped limiting plate rotatably mounted on the bottom wall of the conveying end of the permeation raceway, and side guide plates that are movably embedded in the inner walls of the conveying end of the permeation raceway are fixed on both the front and rear sides of the arc-shaped limiting plate.

[0016] Furthermore, a turning chamber is provided at the end of the permeation tank near the drain tank. Multiple filtrate rollers corresponding to the positions of the permeation rollers are embedded at the bottom of the turning chamber. The other end of the filtrate rollers is inclined downward and fixed to the inner end wall of the drain tank.

[0017] Compared with the prior art, the advantages of this invention are:

[0018] I. This solution employs a modular integrated permeation tank structure, consisting of a permeation tank, a draining tank, and a filtration tank, to achieve the circulation and filtration of the permeating agent. Multiple downward-sloping permeation raceways, completely submerged in the permeating agent, are installed within the permeation tank of the main permeation process. The inclined raceways are suitable for ring-shaped products, such as bearings and round tubes. During the rolling process, the upper end of the product under test remains exposed above the permeation raceways. On one hand, the inclined raceways eliminate the need for any clamping structure to position the product under test, enabling long-distance permeation transport. On the other hand, the continuous rolling and turning process effectively ensures full contact between the various ends of the product under test and the permeating agent, improving the permeation effect.

[0019] Second, this solution also includes limiting components and turning components at the upper and lower conveying ends of the permeation roller, respectively, which act on the products to be tested. The limiting components are used to time the products to be tested being conveyed from the feeding component to the upper conveying end of the permeation roller. By relying on the repeated rotation of the limiting components in stages, multiple products to be tested are synchronously and timed to be conveyed downward along the inclined conveying path of the permeation roller. The turning component, which is set at the lower conveying end of the permeation roller, is used to receive the products to be tested rolling downward and lift them upward to the turning chamber under the action of the electric push cylinder. At this time, by using the flipping of multiple sets of receiving structures, the permeated products to be tested are flipped outward to the filtrate roller, realizing an unobstructed permeation route of "directional inclined conveying, long-distance rolling permeation and rolling filtrate". Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is an internal cross-sectional view of the permeation tank of the present invention;

[0022] Figure 3 This is a schematic diagram of the feeding assembly of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure at the junction of the permeation roller channel, the feeding assembly, and the turning assembly of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure at the junction of the feeding assembly and the permeation raceway of the present invention;

[0025] Figure 6 This is a cross-sectional view of the permeation raceway at the feeding assembly of the product under test, according to the present invention.

[0026] Figure 7 This is a cross-sectional view of the permeation channel when the product to be tested moves downward after the feeding component is flipped.

[0027] Figure 8 This is a cross-sectional view of the permeation raceway when the product under test moves downward after the feeding component is flipped.

[0028] Figure 9 This is a schematic diagram of the structure at the junction of the material turning component and a pair of electric push cylinders of the present invention;

[0029] Figure 10 This is a bottom view of the junction between the material turning assembly and the permeation raceway of the present invention;

[0030] Figure 11 This is a schematic diagram of the material receiving structure of the present invention;

[0031] Figure 12 This is a cross-sectional view of the junction between the receiving structure and the permeation roller channel of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the present invention in which the product to be tested is moved to the drain tank;

[0033] Figure 14 This is an internal cross-sectional view of the product under test being moved to the drain tank in this invention.

[0034] Explanation of the labels in the diagram:

[0035] 1. Permeation tank; 101. Placement cavity; 102. Turning chamber; 2. Drainage tank; 3. Filter tank; 4. Feeding assembly; 41. Feeding slide; 42. Discharge plate; 43. Material blocking channel; 431. Drop trough; 5. Product to be tested; 6. Permeation raceway; 601. Arc-shaped rotating trough; 602. Hollow tank; 7. Limiting assembly; 71. Arc-shaped limiting plate; 72. Side guide plate one; 73. Rotating shaft; 8. Electric push cylinder; 9. Turning assembly; 91. Lifting seat; 92. Positioning plate; 93. Tilting plate; 94. Arc-shaped receiving plate; 95. Side guide plate two; 10. Filtration raceway; 11. Return pipe; 111. Spray head. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Example 1: To address the problem that fluorescent penetrant testing devices using a fixed structure for positioning the product under test make it difficult to ensure sufficient penetrant penetration across all surfaces, resulting in poor testing performance, the following technical solution is proposed, primarily applicable to penetrant testing of ring-shaped and disc-shaped products:

[0038] This embodiment relates to a modular permeation tank integrated structure for use in fluorescence permeation detection lines. Please refer to [link to relevant documentation]. Figure 1 It includes a horizontally arranged permeation tank 1 and a draining tank 2, and a filter tank 3 that is interconnected with the permeation tank 1 and the draining tank 2. The filter tank 3 is connected to the inside of the permeation tank 1 through a return pipe 11.

[0039] The upper conveying end of the permeation tank 1, away from the drain tank 2, is fitted with a feeding component 4 for conveying the product to be tested 5. Inside the permeation tank 1, multiple permeation rollers 6 are fixedly installed, which are adapted to the feeding component 4 and are inclined downwards towards the side away from the feeding component 4. The return pipe 11, away from the filter tank 3, is fixed with a spray head 111 that penetrates the inner wall of the permeation tank 1 and corresponds to the position of the upper conveying end of the permeation roller 6.

[0040] Please see Figures 2-3 The feeding assembly 4 includes a plurality of feeding slides 41 that are inclined downward and embedded in the upper end of the permeation tank 1 and correspond to the positions of the permeation roller 6. The outer ends of the plurality of feeding slides 41 are connected to a discharge plate 42. The discharge plate 42 has a discharge groove that is connected to the feeding slides 41. The end of the feeding slide 41 away from the discharge plate 42 is fixed with a baffle channel 43 that extends to the upper end of the permeation roller 6. The bottom end of the baffle channel 43 has a discharge slot 431. The upper side of the permeation tank 1 has a mounting cavity 101 for embedding and installing the feeding slide 41. The baffle channel 43 is an L-shaped structure that extends upward at the end away from the feeding slide 41. The discharge slot 431 corresponds to the upper end of the permeation roller 6 directly above the conveying end.

[0041] Please see Figure 1 , Figure 2 The test product 5 to be permeated is conveyed into the permeation tank 1 through the feeding slide 41 and the baffle channel 43. The test product 5 is blocked by the upward extension of the baffle channel 43 and falls downward into the inner side of the conveying end of the permeation roller 6 through the discharge trough 431.

[0042] When the product to be tested 5 falls into the permeation roller 6, it rolls downward along the inclined surface of the permeation roller 6. The end of the permeation tank 1 near the drain tank 2 is provided with a turning chamber 102. Multiple filtrate rollers 10 corresponding to the positions of the permeation roller 6 are embedded at the bottom of the turning chamber 102. The other end of the filtrate roller 10 is inclined downward and fixed to the inner end wall of the drain tank 2. The product to be tested 5, which is conveyed to the lower conveying end of the permeation roller 6, is then transferred to the filtrate roller 10 in the drain tank 2 for draining treatment.

[0043] Several through holes are also opened on each end face of the filtrate roller 10. The bottom height of the conveying end of the filtrate roller 10 is higher than the top height of the conveying end of the permeation roller 6. The inclination angle of the permeation roller 6 is greater than the inclination angle of the filtrate roller 10, and the inclination conveying length of the permeation roller 6 is greater than the inclination conveying length of the filtrate roller 10. The test product 5 conveyed to the draining tank 2 is conveyed downward along the inclination surface of the filtrate roller 10 for draining operation. The excess permeate on the test product 5 falls into the draining tank 2. The permeate in the permeation tank 1 and the draining tank 2 enter the filter tank 3 for filtration. The filtered permeate is sprayed onto the test product 5 that initially entered the permeation tank 1 through the return pipe 11 and the spray head 111 to replenish the permeate in the permeation tank 1.

[0044] The permeation tank 1, the draining tank 2, and the filter tank 3 are used in combination to form an integrated modular permeation tank structure. The filter tank 3 is equipped with a filter structure for filtering the treated permeate, realizing the circulation and filtration of the permeate. In the permeation tank 1, which is the main permeation process, multiple downwardly arranged permeation rollers 6 are set up and are completely immersed in the permeate. Several through holes are opened on the end face of the permeation rollers 6. The internal width of the permeation rollers 6 is slightly larger than the thickness of the product 5 to be tested, and the internal height of the permeation rollers 6 is smaller than the inner radius of the product 5 to be tested. This allows the product 5 to roll smoothly downward along the inclined slide inside the permeation rollers 6. The permeate in the permeation tank 1 passes over the top of the permeation rollers 6, so that the permeation rollers 6 are completely immersed in the permeate. The inclined rollers used are suitable for ring-shaped products, such as bearings and round tube products.

[0045] During the rolling process, the upper conveying end of the product under test 5 is always exposed on the upper part of the permeation raceway 6. On the one hand, with the help of the inclined raceway, the permeation and conveying of the product under test 5 can be achieved without the need for any clamping structure to position it. On the other hand, during the continuous rolling and flipping process, the full contact between each end face of the product under test 5 and the permeating agent is effectively achieved, thereby improving the permeation effect.

[0046] Example 2: This example is based on Example 1. Please refer to Example 1. Figure 4Inside the permeation tank 1, on the left and right sides respectively, there are limiting components 7 and turning components 9 that act on the upper and lower ends of the permeation roller 6. At the front and rear ends of the permeation tank 1 near the drain tank 2, there are electric push cylinders 8 that drive the turning components 9 to lift and lower. The electric push cylinders 8 and the turning components 9 cooperate to form a material handling structure, which realizes the transfer of the test product 5 on the permeation line, as detailed below:

[0047] Please see Figure 5 , Figure 6 The limiting component 7 includes an arc-shaped limiting plate 71 rotatably mounted on the bottom wall of the conveying end of the permeation raceway 6. The arc-shaped limiting plate 71 has side guide plates 72 fixed on both the front and rear sides, which are movably embedded in the inner walls of the front and rear conveying ends of the permeation raceway 6. Multiple sets of adjacent side guide plates 72 and the edge side guide plates 72 are connected to the inner wall of the permeation tank 1 by a rotating shaft 73, and a drive motor for rotating the rotating shaft 73 is fixed at the outer end.

[0048] Please see Figures 9-10 The material turning assembly 9 includes a lifting seat 91 fixedly installed on the telescopic ends of a pair of electric push cylinders 8. Positioning plates 92 are fixed on the opposite end walls of the pair of lifting seats 91. A flipping plate 93 is rotatably installed between the pair of positioning plates 92. Multiple material receiving structures corresponding to the positions of the permeation roller 6 are fixed on the flipping plate 93. A linkage shaft with both ends rotatably connected to the pair of positioning plates 92 is installed through the flipping plate 93. A drive motor 2 that drives the linkage shaft to rotate is fixedly installed inside one of the lifting seats 91.

[0049] The receiving structure includes an arc-shaped receiving plate 94 fixed to the bottom of the flip plate 93 and with the same width as the inside of the permeation raceway 6. The upper sides of the arc-shaped receiving plate 94 are fixed with side guide plates 95 arranged with the same center. The inner end face of the flip plate 93 is provided with an arc-shaped surface adapted to the structure of the side guide plates 95. The bottom wall of the lower conveying end of the permeation raceway 6 is provided with a hollow groove 602 corresponding to the position of the arc-shaped receiving plate 94. The end of the arc-shaped receiving plate 94 away from the flip plate 93 is provided with an extension that is arranged upward along the inclined surface of the permeation raceway 6 and fitted into the hollow groove 602.

[0050] Please see Figures 5-10 The inner walls of the upper and lower conveying ends of the permeation roller 6 are provided with movable grooves for the side guide plate 1 72 and the side guide plate 2 95 to rotate. The inner end faces of the side guide plate 1 72 and the side guide plate 2 95 are inclined downward and inward along the movable grooves to tilt the inner end faces of the side guide plate 1 72 and the side guide plate 2 95.

[0051] When the product to be tested 5 falls into the conveying end of the permeation raceway 6, one end of the arc-shaped limiting plate 71 is engaged with the upper end of the arc-shaped rotating groove 601, and the other end of the arc-shaped limiting plate 71 extends upward. At this time, the maximum width position between the pair of side guide plates 72 faces upward, and the upper end of the arc-shaped limiting plate 71 is engaged with the upper end of the arc-shaped rotating groove 601. At this time, the upper end of the arc-shaped limiting plate 71 is flush with the inclined conveying surface of the permeation raceway 6, which facilitates the product to be tested 5 to roll onto the arc-shaped limiting plate 71. The arc-shaped limiting plate 71 plays an intercepting role for the product to be tested 5. After the rotating shaft 73 rotates clockwise, the lower end of the arc-shaped limiting plate 71 is engaged with the lower end of the arc-shaped rotating groove 601. At this time, the lower end of the arc-shaped limiting plate 71 is flush with the inclined conveying surface of the permeation raceway 6 and contacts the limiting position of the product to be tested 5.

[0052] The limiting component 7 is set to play a timed feeding role for the test product 5 conveyed by the feeding component 4 to the upper conveying end of the permeation roller 6. By relying on the staged repeated rotation of the limiting component 7, multiple test products 5 can be synchronously and timed to be conveyed downward along the inclined conveying path of the permeation roller 6.

[0053] Similarly, please refer to Figures 9-12 When the product under test 5 rolls down and approaches the flipping component 9, the maximum width position between the two side guide plates 95 faces upward, which makes it convenient for the product under test 5 to roll onto the arc receiving plate 94. When the product under test 5 rolls completely into the two side guide plates 95, the two arc receiving plates 94 with the gradually narrowing inner end face width help to guide and limit the product under test 5, preventing the product under test 5 from tilting due to the excessive width of the two side guide plates 95.

[0054] Please see Figure 13 , Figure 14 During the subsequent upward lifting and flipping action, a pair of side guide plates 95 play a stabilizing and limiting role for the product to be tested 5. During the upward lifting process of the flipping assembly 9 driven by a pair of electric push cylinders 8, multiple sets of arc-shaped receiving plates 94 can rotate upward at a certain angle towards the extension side to facilitate the stable positioning of the product to be tested 5 between the pair of side guide plates 95 and the arc-shaped receiving plates 94, preventing the product to be tested 5 from falling off. After the flipping assembly 9 is lifted to the flipping cavity 102;

[0055] At this time, the second drive motor continuously drives the turning component 9 to rotate, and multiple sets of arc-shaped receiving plates 94 are flipped clockwise to the outside of the turning chamber 102. At this time, the product to be tested 5 is disengaged from the side guide plate 95 and the arc-shaped receiving plate 94 and falls on the conveying end of the filtrate roller 10. It is then conveyed downward along the inclined surface of the filtrate roller 10 for filtrate draining.

[0056] In summary, the integrated modular permeation tank structure is formed by the cooperation of permeation tank 1, drain tank 2, and filter tank 3, which realizes the circulation and filtration of the permeating agent. In the permeation tank 1, which is the main permeation process, multiple downwardly arranged permeation raceways 6 are set up and completely immersed in the permeating agent. The inclined raceways are suitable for ring-shaped products, such as bearings and round tubes. During the rolling process, the upper end of the product to be tested 5 is always exposed on the upper part of the permeation raceway 6. On the one hand, with the help of the inclined raceways, long-distance permeation can be achieved without the need for any clamping structure to position the product to be tested 5. On the other hand, during the continuous rolling and turning process, the end faces of the product to be tested 5 are effectively in full contact with the permeating agent, thereby improving the permeation effect.

[0057] In addition, by adding an electric push cylinder 8 and a turning component 9 to the lower conveying end of the permeation roller 6, the permeated test product 5 is turned outward to the filtrate roller 10, thus realizing an unobstructed permeation route of "directional inclined conveying, long-distance rolling permeation and rolling filtrate".

[0058] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A modular permeation tank integrated structure applied to a fluorescence permeation detection line, comprising a horizontally arranged permeation tank (1), a draining tank (2), and a filter tank (3) interconnected with both, wherein the filter tank (3) is circulatedly connected to the inside of the permeation tank (1) via a return pipe (11), characterized in that: The upper conveying end of the permeation tank (1) away from the drain tank (2) is fitted with a feeding component (4) for conveying the product to be tested (5). The permeation tank (1) is fixedly installed with a plurality of permeation rollers (6) that are adapted to the feeding component (4) and are inclined downwards towards the side away from the feeding component (4). The return pipe (11) is fixed with a spray head (111) that penetrates the inner wall of the permeation tank (1) and corresponds to the position of the upper conveying end of the permeation roller (6) at one end away from the filter tank (3). The permeation tank (1) is equipped with a limiting component (7) and a turning component (9) that act on the upper and lower ends of the permeation roller (6) on the left and right sides respectively. The permeation tank (1) is fixed with an electric push cylinder (8) that drives the turning component (9) to lift and lower at the front and rear ends on the side of the permeation tank (1) near the drain tank (2). The material turning assembly (9) includes a lifting seat (91) fixedly installed on the telescopic ends of a pair of electric push cylinders (8). A positioning plate (92) is fixed on the opposite end wall of the pair of lifting seats (91). A flipping plate (93) is rotatably installed between the pair of positioning plates (92). Multiple receiving structures corresponding to the positions of the permeation roller channel (6) are fixed on the flipping plate (93).

2. The modular permeation tank integrated structure for use in fluorescence permeation detection lines according to claim 1, characterized in that: The feeding assembly (4) includes a plurality of feeding slides (41) that are inclined downward and embedded on the upper end of the permeation tank (1) and correspond to the positions of the permeation roller (6). The outer ends of the plurality of feeding slides (41) are connected to a discharge plate (42). The discharge plate (42) has a discharge groove that is connected to the feeding slides (41). The end of the feeding slide (41) away from the discharge plate (42) is fixed with a baffle channel (43) that extends to the upper end of the conveying end of the permeation roller (6). The bottom end of the baffle channel (43) has a discharge slot (431).

3. The modular permeation tank integrated structure applied to a fluorescence permeation detection line according to claim 2, characterized in that: The material blocking channel (43) is an L-shaped structure that extends upward from the end away from the feeding slide (41), and the material drop trough (431) corresponds to the top of the conveying end on the permeation roller (6).

4. The modular permeation tank integrated structure for use in fluorescence permeation detection lines according to claim 1, characterized in that: The permeation channel (6) has several through holes on each end face. The internal width of the permeation channel (6) is slightly larger than the thickness of the product to be tested (5), and the internal height of the permeation channel (6) is smaller than the inner radius of the product to be tested (5).

5. The modular permeation tank integrated structure for use in fluorescence permeation detection lines according to claim 1, characterized in that: The receiving structure includes an arc-shaped receiving plate (94) fixed to the bottom of the flip plate (93) and with the same width as the inside of the permeation channel (6). The upper sides of the arc-shaped receiving plate (94) are fixed with side guide plates (95) arranged with the same center. The inner end face of the flip plate (93) is provided with an arc-shaped surface that is compatible with the structure of the side guide plates (95).

6. The modular permeation tank integrated structure for use in fluorescence permeation detection lines according to claim 5, characterized in that: The bottom wall of the lower conveying end of the permeation roller (6) is provided with a hollow groove (602) corresponding to the position of the arc-shaped receiving plate (94). The arc-shaped receiving plate (94) is provided with an extension at the end away from the flip plate (93), which is set upward along the inclined surface of the permeation roller (6) and fitted into the hollow groove (602).

7. The modular permeation tank integrated structure for use in fluorescence permeation detection lines according to claim 1, characterized in that: The limiting component (7) includes an arc-shaped limiting plate (71) rotatably mounted on the bottom wall of the conveying end of the permeation raceway (6), and side guide plates (72) are fixed on both the front and rear sides of the arc-shaped limiting plate (71) and are movably embedded in the inner walls of the front and rear conveying ends of the permeation raceway (6).

8. The modular permeation tank integrated structure for use in fluorescence permeation detection lines according to claim 1, characterized in that: The end of the permeation tank (1) near the drain tank (2) is provided with a turning chamber (102). The bottom of the turning chamber (102) is fitted with a plurality of filtrate rollers (10) corresponding to the position of the permeation rollers (6). The other end of the filtrate rollers (10) is inclined downward and fixed to the inner end wall of the drain tank (2). The bottom height of the conveying end of the filtrate rollers (10) is higher than the top height of the conveying end of the permeation rollers (6).

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