A clamp-adjustable wave-absorbing sponge automatic dipping system and a dipping method thereof

Abstract

This invention discloses an automatic impregnation system and method for microwave-absorbing sponge with adjustable clamps. The automatic impregnation system includes: a system controller, a transport module, a sponge pushing module, and an impregnation machine. The transport module is used for transporting the microwave-absorbing sponge. The impregnation machine is installed inside an impregnation cylinder and includes: an upper impregnation plate, flexible positioning clamps, and a lower impregnation plate. During impregnation, the microwave-absorbing sponge located between the upper impregnation plate and the lower impregnation plate is compressed. Several flexible positioning clamps are installed side by side on the upper surface of the lower impregnation plate, and the lateral position and vertical height of each flexible positioning clamp are adjustable. The sponge pushing module is used to push the microwave-absorbing sponge and the flexible positioning clamps to a preset position. The system controller is used to control the movement of the sponge pushing module and control the lateral position and vertical height of each flexible positioning clamp. This invention can achieve fully automated impregnation of microwave-absorbing sponge.

Description

Technical Field

[0001] This invention belongs to the field of automatic impregnation technology for microwave absorbing sponges, specifically relating to an automatic impregnation system and method for microwave absorbing sponges with adjustable clamps. Background Technology

[0002] Traditional automatic impregnation technology for microwave absorbing sponges mainly relies on fixed clamps to solve the problem of sponge drift in the impregnation solution; however, this method can cause the microwave absorbing sponge to deform due to clamping, thus affecting the stability of the product impregnation process; and different specific clamp shapes are required for microwave absorbing sponges of different shapes, making the system's generalization ability weak.

[0003] Currently, automatic impregnation of microwave absorbing sponges mainly relies on manual impregnation time to determine whether the impregnation process is complete. This makes it difficult to ensure the pass rate of the impregnation process, and the impregnation process can also have a certain impact on the health of the impregnation workers.

[0004] Therefore, the semi-automated impregnation process for microwave-absorbing sponges, which relies on manual operation of machinery, is costly and inefficient. A fully automated impregnation technology is needed to improve production efficiency and ensure product quality and stability. While automated impregnation technology has been applied in many production fields, the variable physical properties of microwave-absorbing sponges (such as shape and size) necessitate a robust impregnation technology that can accommodate sponges of different shapes and sizes. Summary of the Invention

[0005] In view of this, the present invention provides an automatic impregnation system and method for microwave absorbing sponge with adjustable clamps, which can realize fully automated impregnation of microwave absorbing sponge.

[0006] This invention is achieved through the following technical solution:

[0007] An automatic impregnation system for microwave-absorbing sponge with adjustable clamps includes: a system controller, a transport module, a sponge pushing module, and an impregnation machine;

[0008] The peripheral equipment includes an immersion tank filled with immersion liquid;

[0009] The transport module is used to transport the microwave-absorbing sponge into and out of the impregnation tank.

[0010] The impregnation machine is installed inside the impregnation tank. The impregnation machine includes: an upper impregnation pressure plate, a flexible positioning fixture, and a lower impregnation base plate.

[0011] The lower impregnation plate is installed inside the impregnation tank and can be raised and lowered; the upper impregnation plate is located above the lower impregnation plate and is opposite and parallel to the lower impregnation plate, and can be raised and lowered; during impregnation, the wave-absorbing sponge is located between the upper impregnation plate and the lower impregnation plate.

[0012] Flexible positioning fixtures are used for positioning during the impregnation process of the microwave absorbing sponge. Several flexible positioning fixtures are installed side by side on the upper surface of the impregnation base plate, and the lateral position and vertical height of each flexible positioning fixture are adjustable.

[0013] The sponge pushing module is used to push the microwave absorbing sponge and the flexible positioning clamp to the preset position;

[0014] The system controller is used to control the movement of the sponge pushing module; it is also used to control the lateral position of each flexible position fixture; it is also used to control the vertical height of the flexible position fixture; and it is also used to control the vertical height of the upper impregnation plate and the lower impregnation plate.

[0015] Furthermore, the transport module includes a sponge infeed device and a sponge outfeed device; the sponge infeed device and the sponge outfeed device are respectively installed on the outer sides of the impregnation tank. The sponge infeed device is used to transport the microwave-absorbing sponge from the previous process to the impregnation tank; the sponge outfeed device is used to transport the microwave-absorbing sponge from the impregnation tank to the next process; wherein, both the sponge infeed device and the sponge outfeed device include a roller bracket and several rollers installed on the roller bracket; all rollers are arranged side by side, the axial directions of the rollers are parallel, and perpendicular to the transport direction of the microwave-absorbing sponge.

[0016] Furthermore, the structure of the lower impregnation plate and the upper impregnation plate being adjustable is as follows:

[0017] The impregnation bottom plate is mounted on the inner bottom surface of the impregnation cylinder via an impregnation bottom plate cylinder column. The impregnation bottom plate is located above the impregnation bottom plate cylinder column, which is retractable, thereby driving the impregnation bottom plate to move up and down. The impregnation top plate is mounted on the outer support component via an impregnation top plate cylinder column, and is located below the impregnation top plate cylinder column. The impregnation top plate cylinder column is retractable, thereby driving the impregnation top plate to move up and down. When the distance between the impregnation top plate and the impregnation bottom plate decreases, the impregnation of the wave-absorbing sponge is completed by the squeezing action of the impregnation top plate and the impregnation bottom plate. Both the impregnation bottom plate and the flexible positioning fixture are equipped with drainage grooves.

[0018] The system controller is also used to control the operation of the cylinder column of the upper impregnation plate and the cylinder column of the lower impregnation plate, thereby controlling the height of the upper impregnation plate and the lower impregnation plate in the vertical direction.

[0019] Furthermore, the lateral position of each flexible positioning fixture is adjustable as follows:

[0020] Slide rails are installed on both sides of the upper surface of the impregnated bottom plate, and the slide rails are set along the transport direction of the absorbing sponge. A slider is installed at the bottom of the flexible position clamp for sliding cooperation with the slide rail, so that the flexible position clamp can move along the transport direction of the absorbing sponge. In the initial position, all the flexible position clamps are closely arranged and close to the side where the sponge is transported, and the upper surface of all the flexible position clamps is at the same height as the upper surface of the sponge transport device. After the absorbing sponge is pushed to the preset position on the impregnated bottom plate by the sponge pushing module, the flexible position clamp closest to the absorbing sponge is pushed to a suitable position by the sponge pushing module to ensure that the position of the absorbing sponge is fixed. The suitable position is: leaving a lateral gap with the absorbing sponge, and the lateral gap is the expansion margin of the absorbing sponge when it absorbs water.

[0021] Furthermore, the vertical height dimension of each flexible positioning fixture is adjustable as follows:

[0022] Each flexible positioning fixture includes: a fixture housing, a piston plate, a piston, and a cylinder. The piston is installed inside the cylinder, dividing the cylinder's interior into upper and lower chambers. The upper chamber is a rod-type chamber, and the lower chamber is a rodless chamber. The bottom of the piston plate is located in the rod-type chamber and is fixedly connected to the piston, while the top of the piston plate extends out of the cylinder. Both chambers of the cylinder are filled with hydraulic oil and connected to an external hydraulic drive mechanism. The piston plate can extend and retract vertically under the drive of the hydraulic drive mechanism. The fixture housing opens downward and covers the integral structure formed by the piston plate and the cylinder, and the fixture housing is fixedly connected to the top of the piston plate. The slider is installed at the bottom of the cylinder. When the flexible positioning fixture is extended to its maximum length, its height is equal to the height of the unexpanded microwave-absorbing sponge. When the flexible positioning fixture is shortened to its minimum length, its height is 1 / 3 to 1 / 2 times that of the unexpanded microwave-absorbing sponge.

[0023] The system controller is also used to control the vertical height of the flexible position fixture by controlling the operation of the hydraulic drive mechanism. When the upper impregnation plate and the lower impregnation base plate are not performing a pressing action, the flexible position fixture is controlled to extend to its maximum length. When the upper impregnation plate and the lower impregnation base plate are performing a pressing action, the flexible position fixture is controlled to shorten to its minimum length.

[0024] Furthermore, the automated impregnation system also includes: an image acquisition device;

[0025] The image acquisition device is located above the transport module and the impregnation machine, and is used to acquire images of the wave-absorbing sponge;

[0026] The system controller is used to process images acquired by the image acquisition device, obtain the external dimensions of the absorbing sponge through deep learning, and control the lateral position of each flexible position fixture based on the external dimensions of the absorbing sponge.

[0027] Furthermore, the automatic impregnation system also includes: two weighing devices;

[0028] Two weighing devices are installed on the upper surfaces of the sponge infeeding device and the sponge outfeeding device, respectively, to detect the weight of the wave-absorbing sponge before and after impregnation. If the wave-absorbing sponge after impregnation cannot reach the specified water absorption rate, the impregnation process is repeated.

[0029] The system controller is also used to calculate the water absorption rate of the absorbent sponge based on the weight of the absorbent sponge before and after impregnation, and then control whether to repeat the impregnation process.

[0030] Furthermore, the sponge pushing module employs a pushing robotic arm, which is used to push the wave-absorbing sponge from the sponge infeeding device to the upper surface of all the flexible clamp positions of the impregnation machine, continue to push the wave-absorbing sponge to the impregnation bottom plate, push the flexible clamp position closest to the wave-absorbing sponge to the appropriate position, and flip the wave-absorbing sponge from the impregnation bottom plate and push it to the sponge outfeeding device.

[0031] Furthermore, an impregnation liquid recovery device is installed below the sponge conveying device. The side of the impregnation liquid recovery device is attached to the impregnation cylinder body, and the bottom surface of the impregnation liquid recovery device is inclined. The bottom of the side of the impregnation liquid recovery device attached to the impregnation cylinder body is the lowest point. A through hole A is machined at the lowest point of the side of the impregnation liquid recovery device. A through hole B is machined at the corresponding position of the through hole A on the impregnation cylinder body, so that the inner cavity of the impregnation liquid recovery device is connected to the inner cavity of the impregnation cylinder body through the through holes A and B. A one-way valve is installed at the through hole A, which allows the impregnation liquid in the impregnation liquid recovery device to flow unidirectionally to the impregnation cylinder body.

[0032] An impregnation method for an automatic impregnation system for microwave-absorbing sponge with adjustable clamps, the specific steps of which are as follows:

[0033] Step 1: The microwave absorbing sponge obtained from the previous process is placed on the sponge transport device. The sponge is then transported to the impregnation machine via the sponge pushing module. During this process, the microwave absorbing sponge is first weighed by a weighing device before impregnation. The system controller calculates the weight of the qualified microwave absorbing sponge after impregnation based on the weighing value. After weighing, the microwave absorbing sponge is processed by an image acquisition device to obtain the external dimensions of the microwave absorbing sponge. The system controller then calculates the appropriate position of the corresponding flexible position fixture based on the external dimensions.

[0034] Step two: When the absorbing sponge is pushed into the impregnation machine by the sponge pushing module, the upper surfaces of all the flexible positioning clamps are flush with the upper surface of the sponge feeding device. After the absorbing sponge passes over all the flexible positioning clamps and is located on the upper surface of the impregnation bottom plate, the sponge pushing module pushes the flexible positioning clamp closest to the absorbing sponge to a suitable position to ensure that the position of the absorbing sponge is fixed and to allow for the expansion margin of the sponge when absorbing water. The excess flexible positioning clamps that are not involved in the work are still in their initial positions, that is, the upper surface of the impregnation bottom plate is closely arranged close to the side where the sponge feeding device is located; during this process, the flexible positioning clamps extend to their maximum height.

[0035] Step 3: Repeat steps 1 and 2, and arrange several absorbing sponges in sequence on the impregnated bottom plate, with a flexible positioning clamp between two adjacent absorbing sponges.

[0036] Step 4: The bottom plate is lowered and all the wave-absorbing sponges are immersed in the impregnation liquid. After all the flexible position clamps are shortened to their shortest height, the upper part of the wave-absorbing sponges is exposed to ensure the smooth progress of the impregnation process. The impregnation machine completes the impregnation process of all the wave-absorbing sponges on the bottom plate by squeezing the upper impregnation plate and the bottom plate.

[0037] Step 5: After all the absorbing sponges have been impregnated, the impregnation bottom plate is raised so that the upper surface of the flexible position clamp, shortened to its shortest height, is higher than the upper surface of the sponge transport device. The absorbing sponges are then flipped and pushed onto the sponge transport device in sequence by the sponge pushing module. The weighing device on the sponge transport device weighs the absorbing sponges after the impregnation process. If the weight does not meet the requirements, the absorbing sponge is returned to the impregnation machine for re-impregnation. If the weight meets the requirements, the sponge transport device transports the absorbing sponge to the next process.

[0038] Beneficial effects:

[0039] (1) This invention designs a high-precision, high-stability automatic impregnation system for microwave-absorbing sponges that can adapt to different shapes. The system controller controls the movement of the sponge pushing module, the lateral position of each flexible position clamp, the vertical height of the flexible position clamp, and the vertical height of the upper impregnation plate and the lower impregnation plate, ultimately achieving fully automated impregnation of the microwave-absorbing sponge. Since the lateral position of each flexible position clamp is adjustable, the dimensions between the flexible position clamps have a certain margin relative to the size of the microwave-absorbing sponge to prevent the microwave-absorbing sponge from absorbing water and expanding. This allows for precise fixation and control of microwave-absorbing sponges of different shapes, sizes, and thicknesses without affecting their absorption of the impregnation liquid, effectively improving the robustness and stability of the system in this field. Furthermore, the use of this system for fully automated impregnation of microwave-absorbing sponges achieves high-precision, high-efficiency, and high-quality automated soaking of microwave-absorbing sponges, thereby improving production efficiency and product quality.

[0040] (2) The flexible position clamp of the present invention adopts a flexible adjustment technology. The clamping size between the flexible position clamps is moderate, leaving a certain expansion margin for the sponge to absorb water. There is only a weak interaction force between the flexible position clamp and the expanded water-absorbing sponge, thereby effectively avoiding the negative impact of sponge deformation due to clamping and improving the finished product quality. At the same time, the flexible position clamp can move in the longitudinal direction. When the upper and lower impregnation plates are squeezed, the height of the flexible position clamp in the vertical direction can be shortened to ensure the smooth progress of the impregnation process.

[0041] (3) The automatic impregnation system of the present invention also includes an image acquisition device, which adopts an automated control scheme for impregnating absorbent sponge based on image recognition technology. During the impregnation process, the clamps set the lateral position of the flexible position clamps (including the distance between the flexible position clamps and the specific position of each flexible position clamp) according to the image recognition results of the system controller, so as to realize the judgment of the stable position of absorbent sponges with different shapes, sizes and thicknesses, and improve the robustness of the system.

[0042] (4) The automatic impregnation system of the present invention also includes two weighing devices and sets up a closed-loop control for weighing the wave-absorbing sponge. The corresponding weighing work is carried out before and after the wave-absorbing sponge impregnation process to ensure that each wave-absorbing sponge can obtain a reliable adsorption rate. If the wave-absorbing sponge after impregnation cannot reach the specified water absorption rate, that is, the weight of the wave-absorbing sponge after impregnation does not meet the standard, the impregnation process is repeated until the impregnation index of the wave-absorbing sponge is met.

[0043] (5) The bottom of the impregnation liquid recovery device of the present invention is set with a certain slope to facilitate the flow of the recovered impregnation liquid to the impregnation cylinder; a one-way valve is provided at the through hole A of the impregnation liquid recovery device to prevent the impregnation liquid in the impregnation cylinder from flowing into the impregnation liquid recovery device.

[0044] (6) Both the flexible positioning clamp and the bottom plate of the impregnation of the present invention are provided with drainage grooves, which can ensure that the impregnation liquid flows out smoothly during the impregnation and squeezing process of the wave-absorbing sponge. Attached Figure Description

[0045] Figure 1 This is a system composition diagram of the present invention;

[0046] Figure 2 This is a schematic diagram of the layout of the flexible positioning fixture of the present invention;

[0047] Figure 3 This is a schematic diagram of the flexible positioning fixture of the present invention;

[0048] Figure 4 This is a schematic diagram of the installation of the impregnation solution recovery device of the present invention;

[0049] Figure 5These are three views of the impregnation solution recovery device of the present invention;

[0050] Figure 6 This is a flowchart of the impregnation process of the present invention;

[0051] Among them, 1-sponge transport device, 2-wave-absorbing sponge, 3-image acquisition device, 4-pushing robotic arm, 5-impregnation upper pressure plate, 6-impregnation upper pressure plate cylinder column, 7-flexible position fixture, 8-impregnation lower base plate, 9-impregnation lower base plate cylinder column, 10-weighing device, 11-sponge transport device, 12-impregnation liquid recovery device, 13-one-way valve, 7-1-fixture housing, 7-2-rod chamber, 7-3-piston, 7-4-rodless chamber, 7-5-cylinder body, 7-6-piston plate. Detailed Implementation

[0052] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] Example 1:

[0054] This embodiment provides an automatic impregnation system for microwave-absorbing sponge with adjustable clamps. See attached document. Figure 1 It includes: a system controller, a transport module, an image acquisition device 3, a sponge pushing module, an impregnation machine, and a weighing device 10;

[0055] The peripheral equipment includes an immersion tank filled with immersion liquid;

[0056] The transport module is used to transport the microwave-absorbing sponge 2, and includes a sponge infeeding device 1 and a sponge outfeeding device 11. The sponge infeeding device 1 and the sponge outfeeding device 11 are respectively installed on the outer sides of the impregnation tank. The sponge infeeding device 1 is used to transport the microwave-absorbing sponge 2 from the previous process to the impregnation tank. The sponge outfeeding device 11 is used to transport the microwave-absorbing sponge 2 from the impregnation tank to the next process. Each of the sponge infeeding device 1 and the sponge outfeeding device 11 includes a roller bracket and several rollers installed on the roller bracket. All rollers are arranged side by side, and the axes of the rollers are parallel and perpendicular to the transport direction of the microwave-absorbing sponge 2. The transport direction of the microwave-absorbing sponge 2 is transverse.

[0057] The impregnation machine is installed inside the impregnation cylinder. The impregnation machine includes: an upper impregnation plate 5, an upper impregnation plate cylinder 6, a flexible positioning clamp 7, a lower impregnation plate 8, and a lower impregnation plate cylinder 9. The lower impregnation plate 8 is mounted on the inner bottom surface of the impregnation cylinder via the lower impregnation plate cylinder 9, and is located above the lower impregnation plate cylinder 9. The lower impregnation plate cylinder 9 is extendable, thereby driving the lower impregnation plate 8 to move up and down. The upper impregnation plate 5 is connected to the upper impregnation plate cylinder 6 via the lower impregnation plate cylinder 9. The cylinder column 6 is installed on the outer support component, and the impregnating upper pressure plate 5 is located below the impregnating upper pressure plate cylinder column 6. The impregnating upper pressure plate 5 is opposite to and parallel to the impregnating lower bottom plate 8. The impregnating upper pressure plate cylinder column 6 is telescopic, thereby driving the impregnating upper pressure plate 5 to move up and down. The wave-absorbing sponge 2 is located between the impregnating upper pressure plate 5 and the impregnating lower bottom plate 8. When the distance between the impregnating upper pressure plate 5 and the impregnating lower bottom plate 8 becomes smaller, the impregnation of the wave-absorbing sponge 2 is completed by the squeezing action of the impregnating upper pressure plate 5 and the impregnating lower bottom plate 8.

[0058] The flexible positioning clamp 7 is used for positioning the absorbent sponge 2 during the impregnation process. Several flexible positioning clamps 7 are installed side-by-side on the upper surface of the impregnation base plate 8, and slide rails are installed on both sides of the upper surface of the impregnation base plate 8. The slide rails are arranged along the transport direction of the absorbent sponge 2. A slider is installed at the bottom of the flexible positioning clamp 7 for sliding engagement with the slide rail, allowing the lateral position of the flexible positioning clamp 7 to be adjustable, i.e., the flexible positioning clamp 7 can move along the transport direction of the absorbent sponge 2; see appendix. Figure 2 In the initial position, all flexible position clamps 7 are closely arranged and close to the side where the sponge feeding device 1 is located, and the upper surface of all flexible position clamps 7 is at the same height as the upper surface of the sponge feeding device 1; after the wave-absorbing sponge 2 is pushed to the preset position on the impregnated bottom plate 8 by the sponge pushing module, the flexible position clamp 7 closest to the wave-absorbing sponge 2 is pushed to a suitable position by the sponge pushing module to ensure that the position of the wave-absorbing sponge 2 is fixed. The suitable position refers to having a lateral gap with the wave-absorbing sponge 2, and the lateral gap is the expansion margin of the wave-absorbing sponge 2 when absorbing water.

[0059] The height of the flexible positioning clamp 7 is adjustable, meaning each flexible positioning clamp 7 can extend and retract vertically. When the upper impregnation plate 5 and the lower impregnation plate 8 are pressed together, the flexible positioning clamp 7 can shorten to ensure the smooth progress of the impregnation process; for details, see the appendix. Figure 3Each flexible positioning fixture 7 includes: a fixture housing 7-1, a piston plate 7-6, a piston 7-3, and a cylinder 7-5; the piston 7-3 is installed inside the cylinder 7-5, dividing the inner cavity of the cylinder 7-5 into upper and lower cavities, the upper cavity being the rod-side cavity 7-2 and the lower cavity being the rodless cavity 7-4; the bottom of the piston plate 7-6 is located inside the rod-side cavity 7-2 and is fixedly connected to the piston 7-3, and the top of the piston plate 7-6 extends out of the cylinder 7-5; both cavities of the cylinder 7-5 are filled with hydraulic oil and connected to an external hydraulic drive mechanism. The piston plate 7-6 is connected to the cylinder 7-5. Under the drive of the hydraulic drive mechanism, the piston plate 7-6 can extend and retract along the height direction (i.e., the vertical direction). The clamp housing 7-1 opens downward and covers the integral structure composed of the piston plate 7-6 and the cylinder 7-5. The clamp housing 7-1 is fixedly connected to the top of the piston plate 7-6. The slider is installed at the bottom of the cylinder 7-5. When the flexible position clamp 7 is extended to its longest length, its height is the same as the height of the unexpanded wave-absorbing sponge 2. When the flexible position clamp 7 is shortened to its shortest length, its height is 1 / 3 to 1 / 2 times that of the unexpanded wave-absorbing sponge 2.

[0060] Furthermore, both the flexible positioning clamp 7 and the impregnation bottom plate 8 are provided with drainage grooves to ensure that the impregnation liquid flows out smoothly during the impregnation and squeezing process of the wave-absorbing sponge 2.

[0061] The sponge pushing module uses a pushing robotic arm 4, which is used to push the wave-absorbing sponge 2 from the sponge infeeding device 1 to the upper surface of all the flexible clamp positions 7 of the impregnation machine, continue to push the wave-absorbing sponge 2 to the impregnation bottom plate 8, push the flexible clamp position 7 closest to the wave-absorbing sponge 2 to the appropriate position, and flip the wave-absorbing sponge 2 from the impregnation bottom plate 8 and push it to the sponge outfeeding device 11.

[0062] The two weighing devices 10 are respectively installed on the upper surfaces of the sponge infeeding device 1 and the sponge outfeeding device 11 to detect the weight of the wave-absorbing sponge 2 before and after impregnation. If the wave-absorbing sponge 2 after impregnation cannot reach the specified water absorption rate, the impregnation process is repeated.

[0063] The image acquisition device 3 is located above the transport module and the impregnation machine, and is used to acquire images of the microwave absorbing sponge 2;

[0064] The system controller is the overall control unit of the automatic impregnation system. It is used to process the images acquired by the image acquisition device 3 and obtain the external dimensions of the absorbing sponge 2 through deep learning. It is also used to control the movement of the pushing robotic arm 4 and, based on the external dimensions of the absorbing sponge 2, to determine the lateral position of each flexible position clamp 7 and then control the movement of the pushing robotic arm 4. It is also used to control the length (i.e., the vertical height) of the flexible position clamp 7 by controlling the operation of the hydraulic drive mechanism. When the upper impregnation plate 5 and the lower impregnation plate 8 are not performing the squeezing action, it controls the flexible position clamp 7 to extend to its maximum length. When the upper impregnation plate 5 and the lower impregnation plate 8 are performing the squeezing action, it controls the flexible position clamp 7 to shorten to its minimum length. It is also used to control the operation of the upper impregnation plate cylinder column 6 and the lower impregnation plate cylinder column 9, thereby controlling the vertical height of the upper impregnation plate 5 and the lower impregnation plate 8. It is also used to calculate the water absorption rate of the absorbing sponge 2 based on the weight of the absorbing sponge 2 before and after impregnation, thereby controlling whether to repeat the impregnation process.

[0065] For further details, please see the appendix. Figure 4 Below the sponge conveying device 11, an impregnation liquid recovery device 12 is installed. The side of the impregnation liquid recovery device 12 is in contact with the impregnation cylinder body. The bottom surface of the impregnation liquid recovery device 12 is a slope, and the bottom of the side of the impregnation liquid recovery device 12 in contact with the impregnation cylinder body is the lowest point. A through hole A is machined at the lowest point of the side of the impregnation liquid recovery device 12. A through hole B is machined at the corresponding position of the through hole A on the impregnation cylinder body, so that the inner cavity of the impregnation liquid recovery device 12 communicates with the inner cavity of the impregnation cylinder body through the through holes A and B. See Appendix Figure 5 A one-way valve 13 is installed at through hole A, which allows the impregnation liquid in the impregnation liquid recovery device 12 to flow unidirectionally to the impregnation cylinder. The excess impregnation liquid of the impregnated wave-absorbing sponge drips from the gap between the rollers of the sponge delivery device 11 into the inner cavity of the impregnation liquid recovery device 12. The recovered impregnation liquid flows to the lowest end under the action of gravity and flows into the impregnation cylinder through the one-way valve 13. When the level of the impregnation liquid in the impregnation cylinder is higher than that in the impregnation liquid recovery device 12, the impregnation liquid cannot flow back due to the one-way valve 13.

[0066] Example 2:

[0067] This embodiment, based on Embodiment 1, provides an impregnation method for an automatic impregnation system for microwave-absorbing sponge with adjustable clamps. See attached document. Figure 6 The specific steps of this method are as follows:

[0068] Step 1: The microwave absorbing sponge 2 obtained from the previous process (or manually) is placed on the sponge transport device 1. The microwave absorbing sponge 2 is transported to the impregnation machine through the sponge pushing module. During this process, the microwave absorbing sponge 2 is first weighed by the weighing device 10 before impregnation. The system controller calculates the weight of the qualified microwave absorbing sponge 2 after impregnation based on the weighing value. After weighing, the microwave absorbing sponge 2 is processed by the image acquisition device 3 to obtain the external dimension information of the microwave absorbing sponge 2. The system controller calculates the appropriate position of the corresponding flexible position clamp 7 based on the external dimension information.

[0069] Step two: When the absorbing sponge 2 is pushed to the impregnation machine by the sponge pushing module, the upper surfaces of all the flexible position clamps 7 are flush with the upper surface of the sponge feeding device 1. After the absorbing sponge 2 passes over all the flexible position clamps 7 and is located on the upper surface of the impregnation bottom plate 8, the sponge pushing module pushes the flexible position clamp 7 closest to the absorbing sponge 2 to move laterally to a suitable position to ensure that the position of the absorbing sponge 2 is fixed and that there is a margin for the expansion of the sponge to absorb water. The excess flexible position clamps 7 that are not involved in the work are still in the initial position, that is, the upper surface of the impregnation bottom plate 8 is closely arranged close to the side where the sponge feeding device 1 is located; during this process, the flexible position clamps 7 extend to their maximum height.

[0070] Step 3: Repeat steps 1 and 2, and arrange several absorbing sponges 2 on the impregnated bottom plate 8 in sequence, with a flexible position clamp 7 between two adjacent absorbing sponges 2.

[0071] Step 4: The bottom plate 8 is lowered, taking all the wave-absorbing sponges with it into the impregnation liquid. After all the flexible position clamps 7 are shortened to their shortest height, the upper part of the wave-absorbing sponges 2 is exposed, ensuring the smooth progress of the impregnation process. The impregnation machine completes the impregnation process of all the wave-absorbing sponges 2 on the bottom plate 8 by squeezing the upper plate 5 and the bottom plate 8.

[0072] Step 5: After all the absorbing sponges 2 have been impregnated, the impregnation bottom plate 8 is raised so that the upper surface of the flexible position clamp 7, which has been shortened to its shortest height, is higher than the upper surface of the sponge transport device 11. The absorbing sponges 2 are flipped and pushed onto the sponge transport device 11 in sequence by the sponge pushing module. The weighing device 10 on the sponge transport device 11 weighs the absorbing sponges 2 after the impregnation process. If the weight does not meet the requirements, the absorbing sponges 2 are transported back to the impregnation machine for impregnation again. If the weight meets the requirements, the sponge transport device 11 transports the absorbing sponges 2 to the next process.

[0073] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic impregnation system for microwave-absorbing sponge with adjustable clamps, characterized in that, include: System controller, transport module, sponge pushing module, and impregnation machine; The peripheral equipment includes an immersion tank filled with immersion liquid; The transport module is used to transport the microwave-absorbing sponge into and out of the impregnation tank. The impregnation machine is installed inside the impregnation tank. The impregnation machine includes: an upper impregnation pressure plate, a flexible positioning fixture, and a lower impregnation base plate. The lower impregnation plate is installed inside the impregnation tank and can be raised and lowered; the upper impregnation plate is located above the lower impregnation plate and is opposite and parallel to the lower impregnation plate, and can be raised and lowered; during impregnation, the wave-absorbing sponge is located between the upper impregnation plate and the lower impregnation plate. Flexible positioning clamps are used for positioning during the impregnation process of the microwave absorbing sponge. Several flexible positioning clamps are installed side by side on the upper surface of the impregnation base plate, and the lateral position and vertical height of each flexible positioning clamp are adjustable; the lateral direction is the transport direction of the microwave absorbing sponge. The sponge pushing module is used to push the microwave absorbing sponge and the flexible positioning clamp to the preset position; The system controller is used to control the movement of the sponge pushing module; it is also used to control the lateral position of each flexible position fixture; it is also used to control the vertical height of the flexible position fixture; and it is also used to control the vertical height of the impregnation upper pressure plate and the impregnation lower base plate.

2. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 1, characterized in that, The transport module includes a sponge infeed device and a sponge outfeed device. The sponge infeed device and the sponge outfeed device are respectively installed on the outer sides of the impregnation tank. The sponge infeed device is used to transport the microwave absorbing sponge from the previous process to the impregnation tank. The sponge outfeed device is used to transport the microwave absorbing sponge from the impregnation tank to the next process. Each of the sponge infeed device and the sponge outfeed device includes a roller bracket and several rollers mounted on the roller bracket. All rollers are arranged side by side, and the axes of the rollers are parallel and perpendicular to the transport direction of the microwave absorbing sponge.

3. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 2, characterized in that, The structure of the adjustable lower impregnation plate and the adjustable upper impregnation plate is as follows: The impregnation bottom plate is mounted on the inner bottom surface of the impregnation cylinder via an impregnation bottom plate cylinder column. The impregnation bottom plate is located above the impregnation bottom plate cylinder column, which is retractable, thereby driving the impregnation bottom plate to move up and down. The impregnation top plate is mounted on the outer support component via an impregnation top plate cylinder column, and is located below the impregnation top plate cylinder column. The impregnation top plate cylinder column is retractable, thereby driving the impregnation top plate to move up and down. When the distance between the impregnation top plate and the impregnation bottom plate decreases, the impregnation of the wave-absorbing sponge is completed by the squeezing action of the impregnation top plate and the impregnation bottom plate. Both the impregnation bottom plate and the flexible positioning fixture are equipped with drainage grooves. The system controller is also used to control the operation of the cylinder column of the upper impregnation plate and the cylinder column of the lower impregnation plate, thereby controlling the height of the upper impregnation plate and the lower impregnation plate in the vertical direction.

4. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 3, characterized in that, The lateral position of each flexible positioning fixture is adjustable as follows: Slide rails are installed on both sides of the upper surface of the impregnated bottom plate, and the slide rails are set along the transport direction of the absorbing sponge. A slider is installed at the bottom of the flexible position clamp for sliding cooperation with the slide rail, so that the flexible position clamp can move along the transport direction of the absorbing sponge. In the initial position, all the flexible position clamps are closely arranged and close to the side where the sponge is transported, and the upper surface of all the flexible position clamps is at the same height as the upper surface of the sponge transport device. After the absorbing sponge is pushed to the preset position on the impregnated bottom plate by the sponge pushing module, the flexible position clamp closest to the absorbing sponge is pushed to a suitable position by the sponge pushing module to ensure that the position of the absorbing sponge is fixed. The suitable position is: leaving a lateral gap with the absorbing sponge, and the lateral gap is the expansion margin of the absorbing sponge when it absorbs water.

5. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 4, characterized in that, The structure with adjustable vertical height for each flexible positioning fixture is as follows: Each flexible positioning fixture includes: a fixture housing, a piston plate, a piston, and a cylinder. The piston is installed inside the cylinder, dividing the cylinder's interior into upper and lower chambers. The upper chamber is a rod-type chamber, and the lower chamber is a rodless chamber. The bottom of the piston plate is located in the rod-type chamber and is fixedly connected to the piston, while the top of the piston plate extends out of the cylinder. Both chambers of the cylinder are filled with hydraulic oil and connected to an external hydraulic drive mechanism. The piston plate can extend and retract vertically under the drive of the hydraulic drive mechanism. The fixture housing opens downward and covers the integral structure formed by the piston plate and the cylinder, with the fixture housing fixedly connected to the top of the piston plate. The slider is installed at the bottom of the cylinder. When the flexible positioning fixture is extended to its maximum length, its height is equal to the height of the unexpanded absorbent sponge. When the flexible positioning fixture is shortened to its minimum length, its height is 1 / 3 to 1 / 2 times that of the unexpanded absorbent sponge. The system controller is also used to control the vertical height of the flexible position fixture by controlling the operation of the hydraulic drive mechanism. When the upper impregnation plate and the lower impregnation base plate are not performing a pressing action, the flexible position fixture is controlled to extend to its maximum length. When the upper impregnation plate and the lower impregnation base plate are performing a pressing action, the flexible position fixture is controlled to shorten to its minimum length.

6. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 4, characterized in that, The automatic impregnation system also includes: an image acquisition device; The image acquisition device is located above the transport module and the impregnation machine, and is used to acquire images of the wave-absorbing sponge; The system controller is used to process images acquired by the image acquisition device, obtain the external dimensions of the absorbing sponge through deep learning, and control the lateral position of each flexible position fixture based on the external dimensions of the absorbing sponge.

7. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 2, characterized in that, The automatic impregnation system also includes: two weighing devices; Two weighing devices are installed on the upper surfaces of the sponge infeeding device and the sponge outfeeding device, respectively, to detect the weight of the wave-absorbing sponge before and after impregnation. If the wave-absorbing sponge after impregnation cannot reach the specified water absorption rate, the impregnation process is repeated. The system controller is also used to calculate the water absorption rate of the absorbent sponge based on the weight of the absorbent sponge before and after impregnation, and then control whether to repeat the impregnation process.

8. The automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in claim 4, characterized in that, The sponge pushing module uses a pushing robotic arm, which is used to push the wave-absorbing sponge from the sponge infeeding device to the upper surface of all the flexible clamp positions of the impregnation machine, continue to push the wave-absorbing sponge to the impregnation bottom plate, push the flexible clamp position closest to the wave-absorbing sponge to the appropriate position, and flip the wave-absorbing sponge from the impregnation bottom plate to push it onto the sponge outfeeding device.

9. An automatic impregnation system for wave-absorbing sponge with adjustable clamps as described in any one of claims 2-8, characterized in that, Below the sponge conveying device is an impregnation liquid recovery device. The side of the impregnation liquid recovery device is attached to the impregnation cylinder. The bottom surface of the impregnation liquid recovery device is inclined. The bottom of the side of the impregnation liquid recovery device attached to the impregnation cylinder is the lowest point. A through hole A is machined at the lowest point of the side of the impregnation liquid recovery device. A through hole B is machined at the corresponding position of the through hole A on the impregnation cylinder, so that the inner cavity of the impregnation liquid recovery device is connected to the inner cavity of the impregnation cylinder through the through holes A and B. A one-way valve is installed at the through hole A, which allows the impregnation liquid in the impregnation liquid recovery device to flow unidirectionally to the impregnation cylinder.

10. An impregnation method for an automatic impregnation system with adjustable clamps for microwave-absorbing sponge, based on the automatic impregnation system of any one of claims 2-9, characterized in that, The specific steps of this method are as follows: Step 1: The microwave absorbing sponge obtained from the previous process is placed on the sponge transport device. The sponge is then transported to the impregnation machine via the sponge pushing module. During this process, the microwave absorbing sponge is first weighed by a weighing device before impregnation. The system controller calculates the weight of the qualified microwave absorbing sponge after impregnation based on the weighing value. After weighing, the microwave absorbing sponge is processed by an image acquisition device to obtain the external dimensions of the microwave absorbing sponge. The system controller then calculates the appropriate position of the corresponding flexible position fixture based on the external dimensions. Step two: When the absorbing sponge is pushed into the impregnation machine by the sponge pushing module, the upper surfaces of all the flexible positioning clamps are flush with the upper surface of the sponge feeding device. After the absorbing sponge passes over all the flexible positioning clamps and is located on the upper surface of the impregnation bottom plate, the sponge pushing module pushes the flexible positioning clamp closest to the absorbing sponge to a suitable position to ensure that the position of the absorbing sponge is fixed and to allow for the expansion margin of the sponge when absorbing water. The excess flexible positioning clamps that are not involved in the work are still in their initial positions, that is, the upper surface of the impregnation bottom plate is closely arranged close to the side where the sponge feeding device is located; during this process, the flexible positioning clamps extend to their maximum height. Step 3: Repeat steps 1 and 2, and arrange several absorbing sponges in sequence on the impregnated bottom plate, with a flexible positioning clamp between two adjacent absorbing sponges. Step 4: The bottom plate is lowered and all the wave-absorbing sponges are immersed in the impregnation liquid. After all the flexible position clamps are shortened to their shortest height, the upper part of the wave-absorbing sponges is exposed to ensure the smooth progress of the impregnation process. The impregnation machine completes the impregnation process of all the wave-absorbing sponges on the bottom plate by squeezing the upper impregnation plate and the bottom plate. Step 5: After all the absorbing sponges have been impregnated, the impregnation bottom plate is raised so that the upper surface of the flexible position clamp, shortened to its shortest height, is higher than the upper surface of the sponge transport device. The absorbing sponges are then flipped and pushed onto the sponge transport device in sequence by the sponge pushing module. The weighing device on the sponge transport device weighs the absorbing sponges after the impregnation process. If the weight does not meet the requirements, the absorbing sponge is returned to the impregnation machine for re-impregnation. If the weight meets the requirements, the sponge transport device transports the absorbing sponge to the next process.

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