A device for producing environment-friendly tin stripping solution

Abstract

The utility model discloses a device for producing environment-friendly tin stripping liquid, which comprises an outer shell, an inner cylinder rotatably installed in the outer shell, a hydraulic cylinder vertically installed outside the outer shell, a main supporting arm rotatably installed on the hydraulic cylinder through a mounting bracket, a motor one installed on the mounting bracket to drive the main supporting arm to rotate, a vice supporting arm rotatably installed at the lower end of the main supporting arm away from the mounting bracket, a motor two installed on the main supporting arm to drive the vice supporting arm to rotate, a scraper and an air rod installed below the lower end of the vice supporting arm away from the main supporting arm, a plurality of spray heads evenly installed on the side of the air rod close to the scraper in the vertical direction, and an air pump connected to the air rod and installed on the vice supporting arm. When the vice supporting arm rotates, the scraper is driven to clean the residues on the inner wall of the inner cylinder, and the air rod is driven to blow back the mesh hole from the outside of the inner cylinder. The device can not only clean the mesh hole, but also promote the residues on the inner wall to fall off, making the cleaning of the residues more convenient.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid treatment technology, and in particular to an apparatus for producing environmentally friendly tin stripping solution. Background Technology

[0002] Tin stripping solution is a chemical solution used to remove tin plating or tin alloy plating from metal surfaces. It is widely used in electronics manufacturing, circuit board processing, and metal surface treatment. Its main function is to dissolve or peel off the tin layer through a chemical reaction, thereby cleaning the substrate or allowing for further processing. After use, the tin stripping solution can be efficiently separated from metastannic acid (a reaction byproduct) and copper ions through centrifugal separation and electrolytic recovery technology, facilitating the recycling of the solution and reducing wastewater discharge.

[0003] When using existing centrifugal separation devices, the stannic acid that is screened out will adhere to the inner wall of the centrifugal cylinder and easily clog the mesh of the inner cylinder, affecting the effect of subsequent centrifugal separation. The adhered stannic acid is also troublesome to clean manually.

[0004] To address these issues, we propose an apparatus for producing environmentally friendly solder stripping solution. Utility Model Content

[0005] The purpose of this invention is to provide an apparatus for producing environmentally friendly solder stripping solution, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An apparatus for producing environmentally friendly solder stripping solution includes a housing and an inner cylinder rotatably mounted inside the housing. A hydraulic cylinder is vertically mounted outside the housing, and a main support arm is rotatably mounted on the hydraulic cylinder via a mounting bracket. A motor for driving the main support arm to rotate is mounted on the mounting bracket. A secondary support arm is rotatably mounted below the end of the main support arm away from the mounting bracket, and a motor for driving the secondary support arm to rotate is mounted on the main support arm. A scraper and an air rod are mounted parallel to each other below the end of the secondary support arm away from the main support arm. Several nozzles are evenly mounted vertically on the side of the air rod near the scraper, and an air pump connected to the air rod is also mounted on the secondary support arm.

[0008] In a further embodiment, the mounting bracket is provided with a vertical baffle on its side. When the output shaft centerline of the second motor coincides with the inner cylinder centerline, the side of the main support arm is in close contact with the vertical baffle.

[0009] In a further embodiment, when the output shaft centerline of the second motor coincides with the inner cylinder centerline, the scraper and the air rod are located on the inner and outer sides of the inner cylinder, respectively.

[0010] In a further embodiment, a cleaning strip is connected to the side of the scraper near the air rod, and the cleaning strip is in contact with the inner wall of the inner cylinder.

[0011] In a further embodiment, a ring rail coaxial with the output shaft of motor two is also installed under the main support arm, and a slider is connected to the secondary support arm. The slider passes through the ring rail, and the slider moves along the ring rail when the secondary support arm rotates.

[0012] In a further embodiment, the slider consists of a T-shaped rod and rotating wheels rotatably mounted at both ends of the crossbar of the T-shaped rod, and the rotating wheels are in contact with the surface of the ring rail.

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

[0014] This invention features a secondary support arm that, when rotating, drives a scraper to clean residue from the inner wall of the inner cylinder. Simultaneously, it drives an air rod to back-blow the mesh from the outside of the inner cylinder. This not only cleans the clogged mesh of the inner cylinder but also promotes the removal of residue from the inner wall, making the cleaning of residue more convenient, reducing the downtime required for cleaning, and facilitating the rapid commissioning of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the scraper before it is inserted into the inner cylinder of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the scraper after it is inserted into the inner cylinder of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure at the connection between the ring rail and the slider of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Inner cylinder; 3. Hydraulic cylinder; 4. Mounting bracket; 41. Baffle; 5. Main support arm; 6. Motor 1; 7. Secondary support arm; 8. Motor 2; 9. Scraper; 91. Cleaning strip; 10. Air rod; 11. Nozzle; 12. Air pump; 13. Ring rail; 14. Slider; 141. T-bar; 142. Rotary wheel. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figure 1-4An apparatus for producing environmentally friendly solder stripping solution includes a housing 1 and an inner cylinder 2. The inner cylinder 2 is rotatably installed inside the housing 1. Specifically, a drive unit is provided under the housing 1 to rotate the inner cylinder 2. The inner cylinder 2 is a perforated mesh cylinder. When the used solder stripping solution enters the inner cylinder 2, during the rotation of the inner cylinder 2, the waste liquid containing copper ions is thrown out and enters the space between the inner cylinder 2 and the housing 1, and is finally discharged through the drain pipe at the bottom of the housing 1. The stannic acid remains in the inner cylinder 2. To facilitate the cleaning of the adhering stannic acid, a hydraulic cylinder 3 is vertically installed outside the housing 1. A mounting bracket 4 is fixed on the output shaft of the hydraulic cylinder 3. One end of a main support arm 5 is rotatably installed inside the mounting bracket 4. A secondary support arm 7 is rotatably installed below the other end of the main support arm 5. A motor 6 that drives the main support arm 5 to rotate is installed on the mounting bracket 4. A motor 8 that drives the secondary support arm 7 to rotate is installed on the other end of the main support arm 5. Parallel scrapers 9 and air rods 10 are installed below the end of the secondary support arm 7 away from the main support arm 5. To minimize damage to the inner wall of the inner cylinder 2, a cleaning strip 91 is connected to the side of the scraper 9 near the air rod 10, and the cleaning strip 91 is in close contact with the inner wall of the inner cylinder 2. Specifically, the cleaning strip 91 is made of polytetrafluoroethylene. Several nozzles 11 are evenly installed vertically on the side of the air rod 10 near the scraper 9, and an air pump 12 connected to the air rod 10 is also installed on the auxiliary support arm 7. Specifically, when the output shaft centerline of the motor 2 8 coincides with the centerline of the inner cylinder 2, the hydraulic cylinder 3 retracts. The shortening causes the scraper 9 and air rod 10 to move downwards, positioning them on the inner and outer sides of the inner cylinder 2. At this time, the motor 8 rotates, causing the auxiliary support arm 7 to rotate, which in turn causes the scraper 9 and air rod 10 to move circumferentially along the inner cylinder 2. The scraper 9 scrapes away the deposits on the inner wall, and the nozzle 11 sprays air onto the outer wall of the inner cylinder 2, back-blowing the mesh. To ensure that the two work together, the scraper 9 and air rod 10 are positioned offset from each other and not on the same radial direction to prevent the nozzle 11 from being blocked by the scraper 9 at the back-blowing point.

[0024] Considering that the top cover of the centrifuge is closed during centrifugal operation, the main support arm 5 is designed to rotate and move the entire cleaning structure away from the inner cylinder 2. When cleaning is required, it can be moved to the top of the inner cylinder 2. The side of the mounting bracket 4 is provided with a vertical baffle 41. When the output shaft centerline of the motor 2 8 coincides with the centerline of the inner cylinder 2, the side of the main support arm 5 is close to the vertical baffle 41, which helps the main support arm 5 to be quickly positioned above the inner cylinder 2.

[0025] To improve the rotational stability of the secondary support arm 7, a ring rail 13 coaxial with the output shaft of the second motor 8 is installed under the main support arm 5. A slider 14 is also connected to the secondary support arm 7, passing through the ring rail 13. When the secondary support arm 7 rotates, the slider 14 moves along the ring rail 13, thereby assisting in the hoisting of the secondary support arm 7. Furthermore, the slider 14 consists of a T-shaped rod 141 and rotating wheels 142 rotatably mounted at both ends of the crossbar of the T-shaped rod 141. The rotating wheels 142 are in contact with the surface of the ring rail 13, and the bottom end of the vertical rod of the T-shaped rod 141 is fixed to the upper surface of the secondary support arm 7. This allows the rotating wheels 142 to roll along the ring rail 13 when the secondary support arm 7 rotates, reducing frictional resistance.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for producing environmentally friendly solder stripping solution, comprising a housing (1) and an inner cylinder (2) rotatably mounted within the housing (1), characterized in that: A hydraulic cylinder (3) is vertically mounted on the outer shell (1). A main support arm (5) is rotatably mounted on the hydraulic cylinder (3) via a mounting bracket (4). A motor (6) for driving the main support arm (5) to rotate is mounted on the mounting bracket (4). A secondary support arm (7) is rotatably mounted on the end of the main support arm (5) away from the mounting bracket (4). A motor (8) for driving the secondary support arm (7) to rotate is mounted on the main support arm (5). A scraper (9) and an air rod (10) are mounted parallel to each other on the lower end of the secondary support arm (7) away from the main support arm (5). Several nozzles (11) are evenly mounted vertically on the side of the air rod (10) near the scraper (9). An air pump (12) connected to the air rod (10) is also mounted on the secondary support arm (7).

2. The apparatus for producing environmentally friendly solder stripping solution according to claim 1, characterized in that: The mounting bracket (4) has a vertical baffle (41) on its side. When the output shaft centerline of the motor (8) coincides with the centerline of the inner cylinder (2), the side of the main support arm (5) is in close contact with the vertical baffle (41).

3. The apparatus for producing environmentally friendly solder stripping solution according to claim 1, characterized in that: When the output shaft centerline of the second motor (8) coincides with the centerline of the inner cylinder (2), the scraper (9) and the air rod (10) are located on the inner and outer sides of the inner cylinder (2).

4. The apparatus for producing environmentally friendly solder stripping solution according to claim 1, characterized in that: The scraper (9) is connected to a cleaning strip (91) on the side near the air rod (10), and the cleaning strip (91) is in contact with the inner wall of the inner cylinder (2).

5. The apparatus for producing environmentally friendly solder stripping solution according to claim 1, characterized in that: The main support arm (5) is also equipped with a ring rail (13) coaxial with the output shaft of the second motor (8). The auxiliary support arm (7) is also connected to a slider (14). The slider (14) passes through the ring rail (13). When the auxiliary support arm (7) rotates, the slider (14) moves along the ring rail (13).

6. The apparatus for producing environmentally friendly solder stripping solution according to claim 5, characterized in that: The slider (14) consists of a T-shaped rod (141) and a rotating wheel (142) rotatably mounted at both ends of the crossbar of the T-shaped rod (141), and the rotating wheel (142) is in contact with the surface of the ring rail (13).

Images