An extrusion and recovery tank for fire-retardant sponge impregnation

Abstract

The utility model discloses an extrusion and recovery tank for fire -retardant sponge impregnation treatment, including the case, the top of case is equipped with the groove body, and the upper end of case is connected with the rack, and the rack is installed with the roof, and the roof is equipped with the lifting mechanism above the groove body, and the output of lifting mechanism is installed with the bearing plate, and lifting mechanism is used for controlling bearing plate to go up and down, the outlet end of groove body is equipped with the boss on case, and the extrusion mechanism is installed on boss and roof, the recovery flow guide structure is set up below extrusion mechanism, is used for collecting the superfluous fire -retardant agent of being extruded and guides the flow to the groove body, and the side of case away from extrusion mechanism is installed with the push material pneumatic cylinder, and the telescopic end of push material pneumatic cylinder is connected with the push plate. Through the cooperation of extruding roller and liquid collecting groove, the superfluous fire -retardant agent of higher concentration in sponge is effectively extruded and is recovered to the groove body, and the consumption of fire -retardant agent is reduced significantly, and the production cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of sponge impregnation technology, specifically to an extrusion and recycling tank for flame-retardant sponge impregnation treatment. Background Technology

[0002] Flame-retardant sponge is a safety material widely used in furniture, automobiles, aerospace, and other fields. One of the key processes in its production is to pass ordinary sponge through an impregnation tank to allow it to fully absorb the flame retardant solution, and then squeeze it to remove excess droplets, thereby achieving the specified flame retardant standards and moisture content.

[0003] Existing impregnation methods typically have the following problems: First, after impregnation, a large amount of excess flame retardant adheres to the surface and interior of the sponge. Direct removal not only results in significant waste of the flame retardant and increased production costs but also leads to uneven product moisture content, affecting subsequent drying efficiency and product quality consistency. Second, traditional impregnation tanks are mostly flat-bottomed, making it easy for impurities and sediments in the flame retardant to accumulate at the bottom, which is difficult to clean. Long-term use can affect the purity and treatment effectiveness of the flame retardant solution. Finally, the waste liquid after squeezing drips everywhere, polluting the workshop environment and cannot be recycled. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a reasonably structured and highly practical extrusion and recycling tank for impregnating flame-retardant sponges. It can effectively extrude excess flame retardant from the sponge and recycle it, while ensuring uniform impregnation and easy cleaning of the tank.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An extrusion and recycling tank for flame-retardant sponge impregnation treatment includes a chassis. A tank body is located on the top of the chassis for holding the flame-retardant impregnation liquid. A frame is connected to the upper end of the chassis, and a top plate is installed on the frame. A lifting mechanism is located on the top plate above the tank body. A support plate is installed at the output end of the lifting mechanism. The support plate includes a frame and a grid fixed within the frame. The support plate is used to place sponge blocks. The lifting mechanism controls the raising and lowering of the support plate. A boss is located at the outlet end of the tank body on the chassis. An extrusion mechanism is installed on the boss and the top plate for extruding the impregnated sponge. A recycling and guiding structure is located below the extrusion mechanism for collecting excess flame-retardant and guiding it back into the tank body. A pusher cylinder is installed on the side of the chassis away from the extrusion mechanism. A pusher plate is connected to the telescopic end of the pusher cylinder, and the horizontal plane of the bottom surface of the pusher plate is slightly higher than the horizontal plane of the top surface of the boss.

[0006] Preferably, the lifting mechanism includes a support plate, take-up and release wheels, a first motor, a first gear, a second gear, a driving wheel, a driven wheel, a transmission belt, and steel ropes. A square hole is provided on the top plate above the trough. Two support plates are fixed to the two ends of the square hole. Two take-up and release wheels are arranged front and rear, and both wheels are rotatably connected to the two support plates. The first motor is mounted on the top plate, and a first gear is connected to the motor shaft. One end of the front take-up and release wheel is connected to the second gear and the driving wheel, with the first and second gear meshing. One end of the rear take-up and release wheel is connected to the driven wheel. The driving wheel and the driven wheel are connected by a transmission belt. Steel ropes are wound around both ends of each take-up and release wheel. Four steel ropes pass downwards through the square hole, and the passing ends are connected to the four corners of the support plate. Specifically, shafts are fixed to both ends of the take-up and release wheels, and these shafts are rotatably connected to the support plate. The first motor is started, and through the cooperation of the first gear and the second gear, the front take-up and release wheel is driven to rotate. The front take-up and release wheel, through the cooperation of the driving wheel, the transmission belt and the driven wheel, drives the rear take-up and release wheel to rotate, thereby simultaneously releasing or winding up the steel rope.

[0007] Preferably, the recycling and diversion mechanism includes a liquid collection tank disposed on the boss, a filter plate disposed at the bottom of the liquid collection tank, and a return hole disposed on the boss and inside the casing. The return hole communicates with the tank body, and the liquid collection tank is located on the side closer to the tank body. After the sponge is squeezed by the squeezing mechanism, the flame retardant left behind enters the liquid collection tank, is then filtered by the filter plate, and re-enters the tank body through the return hole, thus realizing the recycling of the flame retardant.

[0008] Preferably, the extrusion mechanism includes an extrusion cylinder, a lifting seat, an upper extrusion roller, a second motor, a third gear, a fourth gear, and a lower extrusion roller. The extrusion cylinder is mounted on the top plate, and its telescopic end is connected to the lifting seat. The upper extrusion roller is rotatably connected inside the lifting seat. The second motor is mounted on the outer wall of the lifting seat, and the third gear is connected to the motor shaft of the second motor. One end of the upper extrusion roller is connected to the fourth gear, and the third and fourth gears mesh. The lower extrusion roller is rotatably connected to the liquid collection tank and is located below the upper extrusion roller. The top surface of the lower extrusion roller protrudes from the liquid collection tank. When the sponge reaches the boss, the pushing cylinder extends, pushing the sponge to move on the boss. At this time, the extrusion cylinder is extended to drive the lifting seat to descend. Then, the second motor operates, driving the upper extrusion roller to rotate. Combined with the action of the lower extrusion roller, the sponge can be extruded, thereby squeezing out the flame retardant. Due to the presence of the extrusion cylinder, the distance between the upper and lower extrusion rollers can be adjusted to control the extrusion force.

[0009] Preferably, the bottom of the tank is inclined, with the end furthest from the extrusion mechanism being the lowest point, and a drain valve is connected to the lowest point. The inclined tank bottom, combined with the drain valve design, makes it easy for impurities and sediments to collect and be cleaned, maintaining the cleanliness of the flame retardant liquid.

[0010] Preferably, the tank is made of stainless steel or engineering plastic to ensure the service life of the equipment. The surfaces of the upper and lower extrusion rollers are coated with a corrosion-resistant elastic layer, such as silicone or fluororubber, which can resist the corrosion of flame retardants and provide gentle extrusion force to avoid damaging the sponge structure.

[0011] Preferably, a position sensor is provided on the upper side of the boss facing the tank. The position sensor senses the height of the support plate as it rises. Through adjustment, when the position sensor senses the support plate, the top surface of the support plate is exactly level with the top surface of the boss, so that the pushing cylinder can push the sponge onto the boss.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By combining the extrusion rollers and the collection tank, excess, high-concentration flame retardant in the sponge is effectively squeezed out and recycled into the tank, significantly reducing the consumption of flame retardant and saving production costs.

[0013] This device integrates impregnation, extrusion, and recycling functions into a single, compact unit. The recycling mechanism prevents waste liquid from splashing everywhere, maintaining a clean and environmentally friendly production environment.

[0014] The sloping tank bottom, combined with the drain valve at the bottom, makes it easy for impurities and sediments to collect and be cleaned, maintaining the cleanliness of the flame retardant liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention; Figure 2 A schematic diagram to illustrate the mechanism; Figure 3 This is a top view of the support plate and the push plate; In the diagram: 1-Chassis, 2-Tank, 3-Top plate, 4-Lifting mechanism, 401-Support plate, 402-Retracting and releasing wheel, 403-First motor, 404-First gear, 405-Second gear, 406-Driving wheel, 407-Driven wheel, 5-Bearing plate, 6-Boss, 7-Extrusion mechanism, 701-Extrusion cylinder, 702-Lifting seat, 703-Upper extrusion roller, 704-Second motor, 705-Third gear, 706-Fourth gear, 707-Lower extrusion roller, 78-Recovery guide structure, 801-Collection tank, 802-Filter plate, 803-Return hole, 9-Pushing cylinder, 10-Push plate, 11-Square hole, 12-Drain valve, 13-Position sensor, 14-Sponge. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0017] Please see Figures 1-3 An extrusion and recycling tank for flame-retardant sponge impregnation treatment includes a housing 1. A tank 2 is located on the top of the housing 1 to hold the flame-retardant impregnation liquid. A frame is connected to the upper end of the housing 1, and the frame consists of four columns fixed to the four corners of the housing. A top plate 3 is mounted on the frame, and a lifting mechanism 4 is located on the top plate 3 above the tank 2. A support plate 5 is mounted at the output end of the lifting mechanism 4. The support plate 5 includes a frame and a grid fixed within the frame. The support plate 5 is used to place sponge blocks, and the lifting mechanism 4 controls the raising and lowering of the support plate 5. The sponge blocks are placed in the tank by the lifting mechanism 4. Because of the grid on the support plate, the flame retardant can penetrate the support plate to completely impregnate the sponge blocks.

[0018] Specifically, the lifting mechanism 4 includes a support plate 401, take-up and release wheels 402, a first motor 403, a first gear 404, a second gear 405, a driving wheel 406, a driven wheel 407, a transmission belt, and a steel rope. A square hole 11 is provided on the top plate 3 above the trough. There are two support plates 401, which are fixed at both ends of the square hole 11. There are two take-up and release wheels 402, which are arranged one in front of the other. Both take-up and release wheels 402 are rotatably connected to the two support plates 401. A shaft is fixed at both ends of the take-up and release wheels 402 and is rotatably connected to the support plates 401 through the shaft. The first motor 403 is mounted on the top plate 4. A first gear 404 is connected to the motor shaft of the first motor 403. One end of the front take-up and release wheel 402 is connected to a second gear 405 and a drive wheel 406. The first gear 404 and the second gear 405 mesh. One end of the rear take-up and release wheel 402 is connected to a driven wheel 407. The drive wheel 406 and the driven wheel 407 are connected by a transmission belt. Steel ropes are wound around both ends of each take-up and release wheel 402. The four steel ropes pass downward through the square hole 11, and the passing ends are connected to the four corners of the support plate 5. When the first motor 403 is started, the first gear 404 and the second gear 405 drive the front take-up and release wheel 402 to rotate. The front take-up and release wheel 402, through the cooperation of the drive wheel 406, the transmission belt and the driven wheel 407, drives the rear take-up and release wheel 402 to rotate, thereby simultaneously releasing or rewinding the steel ropes. The steel ropes drive the support plate to rise and fall, realizing the descent or elevation of the sponge.

[0019] A pusher cylinder 9 is installed on the side of the frame away from the extrusion mechanism. A pusher plate 10 is connected to the telescopic end of the pusher cylinder 9. The bottom surface of the pusher plate 10 is slightly higher than the top surface of the boss 6. The pusher plate 10 can move between the front and rear sets of steel ropes. The extension of the pusher cylinder 9 drives the pusher plate 10 towards the boss 6, thereby pushing the sponge block towards the extrusion mechanism.

[0020] The casing 1 has a boss 6 at the outlet end of the tank. A squeezing mechanism 7 is installed on the boss 6 and the top plate 4 to squeeze the impregnated sponge. A recovery and diversion structure 8 is provided below the squeezing mechanism 7 to collect the excess flame retardant squeezed out and divert it back into the tank 2.

[0021] The recycling and diversion mechanism 8 includes a liquid collection tank 801 mounted on the boss, a filter plate 802 mounted at the bottom of the liquid collection tank, and a return hole 803 mounted on the boss and inside the casing. The return hole 803 communicates with the tank body 2, and the liquid collection tank 801 is located on the side closer to the tank body 2. After the sponge is squeezed by the squeezing mechanism 7, the remaining flame retardant enters the liquid collection tank 801, is filtered by the filter plate 802, and then re-enters the tank body 2 through the return hole 803, thus realizing the recycling of the flame retardant.

[0022] The extrusion mechanism 7 includes an extrusion cylinder 701, a lifting seat 702, an upper extrusion roller 703, a second motor 704, a third gear 705, a fourth gear 706, and a lower extrusion roller 707. The extrusion cylinder 701 is mounted on the top plate 3, and the telescopic end of the extrusion cylinder 701 is connected to the lifting seat 702. The upper extrusion roller 703 is rotatably connected inside the lifting seat 702. The second motor 704 is mounted on the outer wall of the lifting seat 702, and the third gear 705 is connected to the motor shaft of the second motor 704. The fourth gear 706 is connected to one end of the upper extrusion roller 703, and the third gear 705 meshes with the fourth gear 706. The lower extrusion roller 707 is rotatably connected inside the liquid collection tank 801 and is located below the upper extrusion roller 703. The top surface of the lower extrusion roller 707 protrudes out of the liquid collection tank 801. Once the sponge reaches the boss 6, the pushing cylinder 9 extends, pushing the sponge to move on the boss 6. At this time, the extrusion cylinder 701 extends, causing the lifting seat 802 to descend. Then, the second motor 804 operates, driving the upper extrusion roller 703 to rotate. Combined with the action of the lower extrusion roller 707, the sponge is extruded, thereby squeezing out the additional flame retardant. Due to the presence of the extrusion cylinder, the distance between the upper and lower extrusion rollers can be adjusted to control the extrusion force.

[0023] The bottom of the tank 2 is inclined, with the end furthest from the extrusion mechanism being the lowest point, and a drain valve 12 is connected to the lowest point. The inclined tank bottom, combined with the drain valve design at the bottom, makes it easy for impurities and sediments to collect and be cleaned, maintaining the cleanliness of the flame retardant liquid.

[0024] The tank 2 is made of stainless steel or engineering plastic to ensure the service life of the equipment. The surfaces of the upper extrusion roller 703 and the lower extrusion roller 707 are covered with a corrosion-resistant elastic layer, such as silicone or fluororubber, which can resist the corrosion of flame retardants and provide gentle extrusion force to avoid damaging the sponge structure. Example 2

[0025] A position sensor 13 is provided on the upper side of the boss 6 facing the tank. The position sensor senses the height of the support plate. Through adjustment, when the position sensor senses the support plate, the top surface of the support plate is exactly level with the top surface of the boss, so that the pushing cylinder pushes the sponge onto the boss.

[0026] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion and recycling tank for impregnating flame-retardant sponges, characterized in that: Includes a chassis (1), the top of which is provided with a tank (2) for holding flame retardant impregnation liquid, the upper end of the chassis (1) is connected to a frame, a top plate (3) is installed on the frame, and a lifting mechanism (4) is provided on the top plate (3) above the tank (2), and a bearing plate (5) is installed at the output end of the lifting mechanism (4). The bearing plate (5) includes a square frame and a grid fixed in the square frame. The bearing plate (5) is used to place sponge blocks, and the lifting mechanism (4) is used to control the lifting of the bearing plate (5). The casing (1) is provided with a boss (6) at the outlet end of the tank. A squeezing mechanism (7) is installed on the boss (6) and the top plate (3) for squeezing the impregnated sponge. A recycling guide structure (8) is provided below the squeezing mechanism (7) for collecting the excess flame retardant squeezed out and guiding it back into the tank (2). A pusher cylinder (9) is installed on the side of the frame away from the extrusion mechanism. The telescopic end of the pusher cylinder (9) is connected to a pusher plate (10). The horizontal plane where the bottom surface of the pusher plate (10) is located is slightly higher than the horizontal plane where the top surface of the boss (6) is located.

2. The extrusion and recycling tank for flame-retardant sponge impregnation treatment according to claim 1, characterized in that: The lifting mechanism (4) includes a support plate (401), take-up and release wheels (402), a first motor (403), a first gear (404), a second gear (405), a driving wheel (406), a driven wheel (407), a transmission belt, and a steel rope. A square hole (11) is provided on the top plate (3) above the trough. There are two support plates (401), which are fixed at both ends of the square hole (11). There are two take-up and release wheels (402), which are arranged one in front of the other. Both take-up and release wheels (402) are rotatably connected to the two support plates (401). The first motor (403) is installed on the top plate. (3) On the motor shaft of the first motor (403), a first gear (404) is connected. One end of the front take-up and release wheel (402) is connected to a second gear (405) and a drive wheel (406). The first gear (404) and the second gear (405) mesh. One end of the rear take-up and release wheel (402) is connected to a driven wheel (407). The drive wheel (406) and the driven wheel (407) are connected by a transmission belt. Steel ropes are wound around both ends of each take-up and release wheel (402). The four steel ropes pass through the square hole (11) downwards and the passing end is connected to the four corners of the bearing plate (5).

3. The extrusion and recycling tank for flame-retardant sponge impregnation treatment according to claim 2, characterized in that: The recycling guide structure (8) includes a liquid collection tank (801) set on the boss, a filter plate (802) set at the bottom of the liquid collection tank, and a return hole (803) set in the boss and the chassis. The return hole (803) is connected to the tank body (2), and the liquid collection tank (801) is close to the side of the tank body (2).

4. The extrusion and recycling tank for flame-retardant sponge impregnation treatment according to claim 3, characterized in that: The extrusion mechanism (7) includes an extrusion cylinder (701), a lifting seat (702), an upper extrusion roller (703), a second motor (704), a third gear (705), a fourth gear (706), and a lower extrusion roller (707). The extrusion cylinder (701) is mounted on the top plate (3). The telescopic end of the extrusion cylinder (701) is connected to the lifting seat (702). The upper extrusion roller (703) is rotatably connected inside the lifting seat (702). The second motor (704) is mounted on... On the outer wall of the lifting seat (702), a third gear (705) is connected to the motor shaft of the second motor (704), and a fourth gear (706) is connected to one end of the upper extrusion roller (703). The third gear (705) meshes with the fourth gear (706). The lower extrusion roller (707) is rotatably connected to the liquid collection tank (801). The lower extrusion roller (707) is located below the upper extrusion roller (703), and the top surface of the lower extrusion roller (707) protrudes out of the liquid collection tank (801).

5. The extrusion and recycling tank for flame-retardant sponge impregnation treatment according to claim 4, characterized in that: The bottom of the tank (2) is an inclined structure, with the end furthest from the extrusion mechanism being the lowest point, and a drain valve (12) is connected to the lowest point.

6. The extrusion and recycling tank for flame-retardant sponge impregnation treatment according to claim 5, characterized in that: The trough (2) is made of stainless steel or engineering plastic; the surfaces of the upper extrusion roller (703) and the lower extrusion roller (707) are covered with a corrosion-resistant elastic layer.

7. The extrusion and recycling tank for flame-retardant sponge impregnation treatment according to claim 6, characterized in that: A position sensor (13) is provided on the upper part of the boss (6) facing the groove.

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