A silicone coating removal system and its rinsing device

Abstract

The utility model discloses a kind of organic silicon coating removal system and its rinsing device, wherein rinsing device includes: rinsing pool, paddle mechanism and power mechanism;The gentle area and the climbing area are equipped in the rinsing pool, the feed inlet of the rinsing pool is located in the gentle area, the discharge port of the rinsing pool is located in the climbing area;The paddle mechanism includes multiple groups of paddle groups, multiple groups of paddle groups are located between the feed inlet and the discharge port of the rinsing pool, each group of paddle groups includes connecting rod and at least one paddle, the connecting rod is arranged in the rinsing pool and can relatively rotate relative to the rinsing pool, the paddle is arranged on the connecting rod and rotates following the rotation of the connecting rod, the paddle bottom is bent towards the discharge port direction of the rinsing pool;The power mechanism is connected with the connecting rod in each group of paddle groups, for driving connecting rod rotation, to drive the paddle rotation along the feed inlet and the discharge port direction of the rinsing pool, promote the shedding of residual organic silicon coating.

Description

Technical Field

[0001] This utility model relates to the field of organosilicon coating separation, and in particular to an organosilicon coating removal system and its rinsing device. Background Technology

[0002] With the continued growth of global car ownership, especially driven by the trend of lightweighting in new energy vehicles, the market size of airbags, as an important passive safety device, is constantly expanding. It is predicted that a large number of scrapped vehicles will enter the recycling system in the future, including a large number of used airbags. These airbags mostly use fabric substrates (such as polyester fiber cloth) coated with silicone to achieve high-temperature resistance, aging resistance, and sealing performance. However, if such materials are directly landfilled or incinerated after scrapping, it results in resource waste.

[0003] In recent years, countries around the world have increasingly stringent requirements for the circular economy and the recycling of automotive products. For example, the EU's End-of-Life Vehicles Directive (ELV Directive) explicitly requires increasing the recycling and reuse rates of automotive materials and promoting the transformation of the automotive industry chain towards a green and sustainable direction.

[0004] A search revealed that Chinese patent CN115889427A discloses a method for recycling waste PA66-based silicone coating materials. This method involves soaking used airbags in a strong alkaline solution for an extended period (72 hours) to separate the silicone coating from the polyamide substrate. However, this technical solution only involves a chemical process and does not disclose or suggest any device structure for achieving continuous, mechanized cleaning. Utility Model Content

[0005] Therefore, there is a need to provide an organosilicon coating removal system and a rinsing device thereof, which can rinse the substrate after chemical desilication treatment.

[0006] To achieve the above objectives, the inventors provide a rinsing device, comprising: a rinsing tank, a paddle mechanism, and a power mechanism;

[0007] The rinsing tank is provided with a gentle zone and a rising zone. The inlet of the rinsing tank is located in the gentle zone, and the outlet of the rinsing tank is located in the rising zone.

[0008] The blade mechanism includes multiple sets of blades located between the inlet and outlet of the rinsing tank. Each set of blades includes a connecting rod and at least one blade. The connecting rod is located inside the rinsing tank and can rotate relative to the rinsing tank. The blade is located on the connecting rod and rotates with the rotation of the connecting rod. The lower end of the blade is bent toward the outlet of the rinsing tank.

[0009] The power mechanism is connected to the connecting rod in each set of blades and is used to drive the connecting rod to rotate, so as to drive the blades to swing back and forth along the inlet and outlet of the rinsing tank.

[0010] Furthermore, the power mechanism includes multiple motors, which are located outside the rinsing tank and connected to the connecting rod. Each motor corresponds to one connecting rod and is used to drive one connecting rod to rotate.

[0011] Furthermore: multiple connecting rods are at the same height, the blades are placed vertically, and their length is along the vertical direction. In the multiple sets of blades located in the climbing area, the length of the blades gradually decreases along the climbing direction of the climbing area, so that the distance between each blade and the bottom of the climbing area is the same.

[0012] Furthermore, the power mechanism includes a motor and a transmission assembly. The motor is connected to a plurality of connecting rods through the transmission assembly to drive the plurality of connecting rods to rotate together.

[0013] Furthermore, the transmission assembly is a synchronous belt assembly.

[0014] Furthermore: the gentle zone is provided with a first water inlet, and the rinsing device further includes a water pumping mechanism, which includes a first water pump and a first water pipe. The first water pipe is connected to the first water inlet, and the first water pump is connected in series with the first water pipe. The first water pump is used to pump water into the gentle zone so that the pumped water flows in the direction of the rising zone.

[0015] Furthermore, the gentle slope zone is also provided with a second water inlet, and the water pumping mechanism further includes a collection tank, a second water pipe, and a second water pump. The collection tank is located below the discharge port of the rinsing tank. The collection tank is connected to the second water inlet through the second water pipe. The second water pump is connected in series with the second water pipe. The second water pump is used to pump water into the gentle slope zone so that the pumped water flows in the direction of the rising slope zone.

[0016] Furthermore: a conveying mechanism is provided on one side of the rinsing tank. The conveying mechanism is located on one side of the outlet of the rinsing tank and is erected above the collection tank. The conveying mechanism is provided with a mesh so that the collection tank below can collect water.

[0017] Furthermore, the conveying mechanism is a mesh belt conveyor.

[0018] To achieve the above objectives, the inventors also provide an organosilicon coating removal system, including the rinsing apparatus described in any of the above embodiments.

[0019] Unlike existing technologies, the above technical solution has the following beneficial effects: the substrate enters the rinsing tank from the inlet and moves towards the outlet under the propulsion of the paddle mechanism. During the rotation of the paddles, not only are the substrates propelled forward, but they also break them up, promoting the removal of residual silicone coatings and significantly improving cleaning efficiency and substrate purity.

[0020] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0021] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this utility model and other related contents, and should not be considered as limitations on this application.

[0022] Figure 1 This is a schematic diagram of the rinsing apparatus in this application;

[0023] Figure 2 This is a schematic diagram showing one motor corresponding to one connecting rod in this application;

[0024] Figure 3 This is one of the schematic diagrams of the pumping mechanism in this application;

[0025] Figure 4 This is the second schematic diagram of the pump mechanism in this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Rinsing device; 11. Rinsing tank; 111. Gradient zone; 112. Climbing zone; 113. Feed inlet; 114. Discharge outlet; 12. Paddle mechanism; 121. Paddle; 122. Connecting rod; 13. Power mechanism; 131. Motor; 14. Water pumping mechanism; 141. First water pump; 142. First water pipe; 143. Second water pump; 144. Second water pipe; 145. Collection tank; 15. Conveying mechanism. Detailed Implementation

[0028] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0029] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0030] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0031] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0032] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order between these entities or operations.

[0033] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0034] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0035] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0036] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0037] Please see Figures 1 to 4 This application provides a rinsing device 1, including: a rinsing tank 11, a paddle mechanism 12 and a power mechanism 13;

[0038] The rinsing tank 11 is provided with a gentle zone 111 and a rising zone 112. The inlet 113 of the rinsing tank 11 is located in the gentle zone 111, and the outlet 114 of the rinsing tank 11 is located in the rising zone 112.

[0039] The paddle mechanism 12 includes multiple sets of paddles located between the inlet 113 and the outlet 114 of the rinsing tank 11. Each set of paddles includes a connecting rod 122 and at least one paddle 121. The connecting rod 122 is located inside the rinsing tank 11 and can rotate relative to the rinsing tank 11. The paddle 121 is located on the connecting rod 122 and rotates with the rotation of the connecting rod 122. The lower end of the paddle 121 is bent toward the outlet 114 of the rinsing tank 11.

[0040] The power mechanism 13 is connected to the connecting rod 122 in each set of blades and is used to drive the connecting rod 122 to rotate, so as to drive the blade 121 to rotate in the direction of the inlet 113 and outlet 114 of the rinsing tank 11.

[0041] The inlet 113 of the rinsing tank 11 is located at the left end, and the outlet 114 is located at the right end, as shown in the structure. Figure 1As shown. The longitudinal section of the climbing zone 112 is an inverted trapezoid, with its bottom extending slopingly from the lower left corner to the upper right corner. During operation, the substrate enters the rinsing tank 11 from the feed inlet 113 and moves gradually from left to right toward the discharge outlet 114 under the pushing action of the paddle mechanism 12.

[0042] Each set of blades includes a transversely arranged connecting rod 122 and at least one blade 121 fixed to the connecting rod 122. The two ends of the connecting rod 122 are supported by bearings on the sidewalls of the rinsing tank 11 and can rotate around its axis. The blade 121 is fixed to the connecting rod 122, and its bottom is bent towards the discharge port 114 of the rinsing tank 11. This design allows the blade 121 to more effectively push the material towards the discharge port 114 during oscillation, while reducing backflow. The number of blades 121 installed on each connecting rod 122 can be reasonably configured according to actual process requirements and the width of the rinsing tank 11, for example, it can be set to 2, 3, 4, or 8, preferably evenly distributed along the length of the connecting rod 122 to fully cover the cross-sectional width of the rinsing tank 11.

[0043] Driven by the power mechanism 13, the blade 121 rotates following the connecting rod 122 in two modes:

[0044] Scenario 1: The blade 121 swings back and forth following the connecting rod 122 (pendulum motion). When the power mechanism 13 outputs reciprocating rotational motion, the connecting rod 122 drives the blade 121 to swing back and forth within a certain angle range. In such cases... Figure 1 In the structure shown, the blade 121 swings to the right (i.e. towards the discharge port 114), which pushes the substrate to the right, gradually bringing it closer to the discharge port 114.

[0045] Scenario 2: The blades rotate in a circular motion following the connecting rod. Compared to the reciprocating oscillation in Scenario 1, this rotational motion requires a larger spatial range, especially in the direction of the blade's rotation radius, where sufficient space must be reserved to avoid interference with other blades.

[0046] The above technical solution has the following beneficial effects:

[0047] During operation, the substrate enters the rinsing tank 11 through the feed inlet 113 and moves towards the discharge outlet 114 under the pushing action of the paddle mechanism 12. During the rotation of the paddle 121, it not only propels the substrate forward but also breaks it up, promoting the removal of residual silicone coating and significantly improving cleaning efficiency and substrate purity.

[0048] In some embodiments, multiple connecting rods 122 are at the same height, and blades 121 are placed vertically, with their length along the vertical direction. In the multiple sets of blades located in the climbing zone 112, the length of the blades 121 gradually decreases along the climbing direction of the climbing zone 112, so that the distance between each blade 121 and the bottom of the climbing zone 112 is the same. The bottom of the climbing zone 112 has a slope sloping from the lower left to the upper right. As the bottom of the pool gradually rises, to ensure that the bottom of each blade 121 maintains a constant distance from the bottom of the climbing zone 112, this embodiment adopts a variable-length blade 121 design: the blades 121 near the flat zone 111 are longer, while the blades 121 near the discharge port 114 are shorter. The blades 121 are placed as close as possible to the bottom of the rinsing tank 11, which helps to propel the material located in various spatial positions within the rinsing tank 11 forward. Optionally, when the blade 121 is upright, the distance between it and the bottom of the climbing area 112 is controlled within the range of 5 to 20 mm. This can prevent the blade 121 from scraping the bottom of the pool and causing wear, while ensuring that the substrate is effectively struck and propelled during the swinging process, and maintaining uniform water flow disturbance intensity.

[0049] In some embodiments, the power mechanism 13 includes a motor and a transmission assembly. The motor is connected to a plurality of connecting rods 122 via the transmission assembly, and is used to drive the plurality of connecting rods 122 to rotate together. This effectively reduces the number of motors used and simplifies the equipment structure.

[0050] In some embodiments, the transmission assembly is a synchronous belt assembly. The motor is a servo motor or a geared motor, with a driving pulley mounted on its output shaft and a driven pulley mounted on each connecting shaft. A synchronous belt is mounted between the driven pulley and the driving pulley. In some embodiments, the transmission assembly is a gear assembly.

[0051] Please see Figure 2 In another embodiment, the power mechanism 13 includes a plurality of motors 131. The motors 131 are located outside the rinsing tank 11 and connected to the connecting rods 122. One motor 131 corresponds to one connecting rod 122 and is used to drive one connecting rod 122 to rotate, thereby realizing one-to-one transmission.

[0052] It should be noted that the motor can be a geared motor with forward and reverse rotation capabilities. By controlling the forward and reverse operation of the motor, the connecting rod can be directly driven to rotate back and forth within a set angle range, thereby realizing the back-and-forth oscillation of the blades. In addition, the motor can also be used in conjunction with a crank-connecting rod assembly or a cam assembly to convert rotational motion into reciprocating oscillation, driving the blades to oscillate periodically in the rinsing tank.

[0053] Please see Figure 1 and Figure 3In some embodiments, the stabilizing zone 111 is provided with a first water inlet, and the rinsing device 1 further includes a pumping mechanism 14, which includes a first water pump 141 and a first water pipe 142. The first water pipe 142 is connected to the first water inlet, and the first water pump 141 is connected in series with the first water pipe 142. The first water pump 141 is used to pump water into the stabilizing zone 111 so that the pumped water flows towards the ascending zone 112. The first water pump 141 can be a centrifugal pump, and its flow rate and pressure can be adjusted. The first water pump 141 draws water from an external clean water source or a circulating water tank, delivers it to the stabilizing zone 111 through the first water pipe 142, and injects it into the rinsing tank 11 at a certain flow rate through the first water inlet. The injected water flow forms a directional flow from the feed inlet 113 towards the ascending zone 112 in the stabilizing zone 111, pushing the substrate forward along the tank body for preliminary rinsing.

[0054] Please see Figure 1 and Figure 4 In some embodiments, the stabilizing zone 111 is further provided with a second water inlet. The pumping mechanism 14 also includes a collection tank 145, a second water pipe 144, and a second water pump 143. The collection tank 145 is located below the discharge port 114 of the rinsing tank 11. The collection tank 145 is connected to the second water inlet via the second water pipe 144. The second water pump 143 is connected in series with the second water pipe 144 and is used to pump water into the stabilizing zone 111 so that the pumped water flows towards the ascending zone 112. The second water pump 143 can be a centrifugal pump, and its flow rate and pressure can be adjusted. The second water pump 143 pumps the water in the collection tank 145 to the second water inlet of the stabilizing zone 111 and injects it into the rinsing tank 11. The cleaning liquid discharged from the discharge end is reused in the rinsing process, improving the water reuse rate.

[0055] Please see Figure 1 and Figure 4 In some embodiments, a conveying mechanism 15 is provided on one side of the rinsing tank 11. The conveying mechanism 15 is located on one side of the outlet 114 of the rinsing tank 11 and is erected above the collection tank 145. The conveying mechanism 15 is provided with a mesh so that the collection tank 145 below collects water. The rinsed substrate falls onto the conveying mechanism 15 through the outlet 114. A certain amount of cleaning water is still attached to the surface of the substrate. During the conveying process, it gradually drips through the mesh into the collection tank 145 below.

[0056] In some embodiments, the conveying mechanism 15 is a mesh belt conveyor belt with mesh openings on its surface. The mesh opening diameter can be designed according to the substrate size and drainage requirements.

[0057] In some embodiments, the bottom of the climbing zone 112 is inclined upward along the material conveying direction. Preferably, the inclination angle is 30° to ensure the substrate climbs smoothly while also taking into account the substrate propulsion efficiency. It should be noted that this inclination angle can be adjusted according to actual working conditions (such as processing speed, tank length, etc.), and can also be selected as 10°, 23°, 25° or other suitable angles, all of which are within the protection scope of this application.

[0058] This application also provides a silicone coating removal system, including the rinsing device 1 described in any of the above embodiments. The silicone coating removal system may be equipped with an immersion tank for wetting the substrate, and the separation liquid in the immersion tank can remove the silicone coating from the substrate, after which the substrate can be cleaned by the rinsing device.

[0059] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A rinsing device, characterized in that, include: Rinse tank, paddle mechanism, and power mechanism; The rinsing tank is provided with a gentle zone and a rising zone. The inlet of the rinsing tank is located in the gentle zone, and the outlet of the rinsing tank is located in the rising zone. The blade mechanism includes multiple sets of blades located between the inlet and outlet of the rinsing tank. Each set of blades includes a connecting rod and at least one blade. The connecting rod is located inside the rinsing tank and can rotate relative to the rinsing tank. The blade is located on the connecting rod and rotates with the rotation of the connecting rod. The lower end of the blade is bent toward the outlet of the rinsing tank. The power mechanism is connected to the connecting rod in each set of blades and is used to drive the connecting rod to rotate, thereby causing the blades to rotate in the direction of the inlet and outlet of the rinsing tank.

2. The rinsing apparatus according to claim 1, characterized in that: The blades swing back and forth following the connecting rod.

3. The rinsing apparatus according to claim 1 or 2, characterized in that: The power mechanism includes multiple motors, which are located outside the rinsing tank and connected to the connecting rod. Each motor corresponds to one connecting rod and is used to drive one connecting rod to rotate.

4. The rinsing apparatus according to claim 1 or 2, characterized in that: Multiple connecting rods are at the same height, and the blades are placed vertically with their lengths along the vertical direction. In the multiple sets of blades located in the climbing zone, the length of the blades gradually decreases along the climbing direction of the climbing zone, so that each blade is at the same distance from the bottom of the climbing zone.

5. The rinsing apparatus according to claim 4, characterized in that: The power mechanism includes a motor and a transmission assembly. The motor is connected to a plurality of connecting rods through the transmission assembly to drive the plurality of connecting rods to rotate together.

6. The rinsing apparatus according to claim 1, characterized in that: The gentle zone is provided with a first water inlet, and the rinsing device further includes a water pumping mechanism. The water pumping mechanism includes a first water pump and a first water pipe. The first water pipe is connected to the first water inlet, and the first water pump is connected in series with the first water pipe. The first water pump is used to pump water into the gentle zone so that the pumped water flows in the direction of the rising zone.

7. The rinsing apparatus according to claim 6, characterized in that: The gentle zone is also provided with a second water inlet. The pumping mechanism also includes a collection tank, a second water pipe, and a second water pump. The collection tank is located below the discharge port of the rinsing tank. The collection tank is connected to the second water inlet through the second water pipe. The second water pump is connected in series with the second water pipe. The second water pump is used to pump water into the gentle zone so that the pumped water flows in the direction of the rising zone.

8. The rinsing apparatus according to claim 7, characterized in that: A conveying mechanism is provided on one side of the rinsing tank. The conveying mechanism is located on one side of the outlet of the rinsing tank and is erected above the collection tank. The conveying mechanism is equipped with a mesh so that water can be collected in the collection tank below.

9. The rinsing apparatus according to claim 8, characterized in that: The conveying mechanism is a mesh belt type conveyor.

10. A silicone coating removal system, characterized in that, Includes the rinsing apparatus according to any one of claims 1 to 9.

Images