Stirrer for single-liquid tin stripping liquid of circuit board

Abstract

The utility model discloses a blender for a circuit board single liquid tin stripping liquid, which comprises a motor, a stirring shaft and a mounting plate, the stirring shaft is connected with an output shaft of the motor through a coupler, stirring blades are arranged on the stirring shaft, the motor is mounted on a connecting seat of the mounting plate, a bevel gear ring is further rotatably connected to the mounting plate, and the bevel gear ring is connected with a stirring shaft. A plurality of bevel gears are perpendicularly connected to the periphery of the bevel gear ring in a meshed mode, screws penetrate through the bevel gears and are in threaded connection with the interiors of the bevel gears in a screwed mode, limiting rods corresponding to the screws are arranged on the outer side wall of the connecting base, the limiting rods are in sliding connection with the screws, clamping plates are installed at the outer ends of the screws, and a straight gear ring is fixed to the inner ring of the bevel gear ring. And the inner ring of the straight gear ring is in meshed connection with a straight gear. According to the utility model, the disassembly and assembly operation of the stirrer is more convenient and labor-saving, so that when a plurality of storage tanks are stirred at regular intervals, the time consumed by repeatedly disassembling and assembling the stirrer when the stirrer is used among the plurality of storage tanks is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring equipment, in particular to a stirrer for single-liquid tin stripping liquid for circuit boards. Background Art

[0002] Tin stripping liquid is mainly used for removing the tin / lead-tin alloy layer on the copper surface during the manufacturing process of electronic components and circuit boards. It is stored in a plastic can after manufacturing and can resist the chemical corrosion that may be caused by the tin stripping liquid.

[0003] During the storage of tin stripping liquid, the tin stripping liquid needs to be stirred regularly to promote the uniform distribution of components in the solution and reduce the formation of sediment. The currently commonly used regular stirring operation is: installing a stirrer at the mouth of the storage tank so that the stirring shaft extends into the tank to stir the tin stripping liquid. However, the existing stirrer is generally installed and connected to the tank body by bolts and nuts. When a large number of storage tanks need to be stirred regularly, the stirrer needs to be repeatedly disassembled and assembled to connect with different tank bodies for use, which is troublesome. In addition, setting up multiple stirrers for stirring operations requires a large cost.

[0004] To this end, we propose a mixer for single-liquid tin stripping liquid for circuit boards to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a mixer for a single-liquid tin stripping solution for a circuit board, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A mixer for single-liquid tin stripping liquid for circuit boards, comprising a motor, a stirring shaft and a mounting plate, wherein the stirring shaft is connected to the output shaft of the motor through a coupling, and a stirring blade is provided on the stirring shaft, the motor is mounted on a connecting seat of the mounting plate, and a bevel gear ring is also rotatably connected to the mounting plate, the outer periphery of the bevel gear ring is vertically meshed with a plurality of bevel gears, and a screw is passed through and threadedly connected to the interior of the bevel gear, a limit rod is provided on the outer side wall of the connecting seat corresponding to each screw, and the limit rod is slidably connected to the screw, a splint is mounted on the outer end of the screw, the inner ring of the bevel gear ring is fixed with a spur gear ring, and the inner ring of the spur gear ring is meshed with a spur gear.

[0008] In a further embodiment, a notch groove is formed on the outer edge of the mounting plate corresponding to each clamping plate, and the width of the notch groove is greater than the width of the clamping plate.

[0009] In a further embodiment, the bevel gears, screws, limiting rods and clamping plates are symmetrically arranged in three groups about the center of the bevel gear ring.

[0010] In a further embodiment, a handle is connected to the spur gear, a bolt is passed through the distal end of the handle and is threadedly connected thereto, and the bottom end of the bolt is in close contact with the surface of the mounting plate.

[0011] In a further embodiment, a screw barrel is further provided on the mounting plate, the screw barrel passes through the upper and lower surfaces of the mounting plate and is threadedly connected thereto, and the lower end of the screw barrel is rotatably connected to a buckle plate.

[0012] In a further embodiment, a rotating rod is rotatably connected to the interior of the screw barrel, the bottom end of the rotating rod is fixed to the buckle plate, and the top end of the rotating rod passes through the top end of the screw barrel.

[0013] In a further embodiment, the upper surface of the gusset plate and the side surface of the clamping plate close to the mounting plate are both connected with anti-slip pads.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is arranged to synchronously drive the rotation of multiple bevel gears when the bevel gear ring is rotated, so that the multiple screws can move radially along the mounting plate under the action of the threads of the bevel gears and the limiting action of the limiting rod, thereby making it convenient to buckle the mounting plate on the tank mouth of the tin stripping liquid, making the disassembly and assembly of the mixer more convenient and labor-saving, so that when multiple storage tanks are regularly stirred, the time consumed by repeatedly disassembling and assembling the mixer when it is circulated and used between multiple storage tanks is effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the mounting plate and motor mounting structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation disk structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the local structure of the connection between the spur gear and the spur gear ring of the utility model.

[0020] In the figure: 1. Motor; 2. Coupling; 3. Stirring shaft; 4. Stirring blade; 5. Mounting plate; 51. Connecting seat; 52. Notch groove; 6. Bevel gear ring; 7. Bevel gear; 8. Screw; 9. Limit rod; 10. Clamp; 11. Spur gear ring; 12. Spur gear; 121. Turning handle; 122. Bolt; 13. Screw barrel; 14. Buckle plate; 15. Turning rod; 16. Anti-slip pad. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-3, a mixer for single-liquid tin stripping liquid for circuit boards, comprising a motor 1, a stirring shaft 3 and a mounting plate 5, the stirring shaft 3 is connected to the output shaft of the motor 1 through a coupling 2, and a stirring blade 4 is provided on the shaft of the stirring shaft 3, the motor 1 is mounted on the connecting seat 51 of the mounting plate 5, and the output shaft of the motor 1 passes through the connecting seat 51 and extends to the bottom of the mounting plate 5, and the mounting plate 5 is also rotatably connected to a bevel gear ring 6, which is concentric with the connecting seat 51, and a plurality of bevel gears 7 are vertically meshed and connected to the outer periphery of the bevel gear ring 6, which is supported on the mounting plate 5 through a bearing seat, and a screw 8 is passed through and threadedly screwed on the interior of the bevel gear 7, and a limiting rod 9 is provided on the outer wall of the connecting seat 51 corresponding to each screw 8, and the limiting rod 9 is provided on the outer wall of the connecting seat 51. The positioning rod 9 slides through one end of the screw rod 8, and a vertical clamping plate 10 is installed at the end of the screw rod 8 away from the connecting seat 51, which is used to clamp on the side wall of the storage tank mouth. The inner ring of the bevel gear ring 6 is fixed with a spur gear ring 11, and the inner ring of the spur gear ring 11 is meshed with a spur gear 12, and the spur gear 12 is rotatably connected to the mounting plate 5. When the spur gear 12 is rotated, the spur gear 12 drives the spur gear ring 11 to rotate, and the spur gear ring 11 rotates synchronously with the bevel gear ring 6. The bevel gear ring 6 drives multiple bevel gears 7 to rotate. Multiple screw rods 8 move radially along the mounting plate 5 under the action of the threads of the bevel gear 7 and the limiting action of the limiting rod 9. The clamping plate 10 is close to the side wall of the storage tank mouth, and the mounting plate 5 covers the tank mouth of the tin stripping liquid.

[0025] See also Figure 2-3 The outer edge of the mounting plate 5 is provided with a notch groove 52 corresponding to each clamping plate 10, and the width of the notch groove 52 is greater than the width of the clamping plate 10, so that the clamping plate 10 can move toward the connecting seat 51 and then move into the notch groove 52 to adapt to the installation of a smaller tank mouth.

[0026] See also Figure 2-3 The bevel gear 7, the screw 8, the limit rod 9 and the clamping plate 10 are symmetrically arranged in three groups about the center of the bevel gear ring 6. The three-point clamping is achieved by the clamping plate 10, and the clamping is more stable.

[0027] See also Figure 4 Taking into account that the mixer will generate certain vibrations when working, in order to improve the firmness of the clamping, a turning handle 121 is provided on the spur gear 12, and a bolt 122 is passed through the distal end of the turning handle 121 and screwed thereon. When the bottom end of the bolt 122 is tightly fitted and locked with the surface of the mounting plate 5, the problem of rotation deviation of the spur gear 12 caused by working vibration can be reduced.

[0028] For further information, see Figure 2-3The bottom end of the rotating rod 15 is fixed to the buckle plate 14, and the top end of the rotating rod 15 passes through the top of the screw barrel 13. By rotating the rotating rod 15, the rotation of the buckle plate 14 can be controlled.

[0029] See also Figure 2-3 In order to reduce slipping, the upper surface of the gusset plate 14 and the side of the splint 10 close to the mounting plate 5 are connected with anti-slip pads 16. The anti-slip pads 16 are made of silicone rubber, which makes them more firmly attached to the tank wall.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mixer for a single-liquid tin stripping solution for circuit boards, comprising a motor (1), a stirring shaft (3) and a mounting plate (5), characterized in that: The stirring shaft (3) is connected to the output shaft of the motor (1) through a coupling (2), and a stirring blade (4) is provided on the stirring shaft (3). The motor (1) is mounted on a connecting seat (51) of a mounting plate (5), and a bevel gear ring (6) is rotatably connected to the mounting plate (5). The outer periphery of the bevel gear ring (6) is vertically meshed with a plurality of bevel gears (7), and a screw (8) is passed through and threadedly connected to the inside of the bevel gear (7). A limiting rod (9) is provided on the outer side wall of the connecting seat (51) corresponding to each screw (8), and the limiting rod (9) is slidably connected to the screw (8). A clamping plate (10) is installed on the outer end of the screw (8). The inner ring of the bevel gear ring (6) is fixed with a spur gear ring (11), and the inner ring of the spur gear ring (11) is meshed with a spur gear (12).

2. A mixer for a single-liquid tin stripping solution for circuit boards according to claim 1, characterized in that: The outer edge of the mounting plate (5) is provided with a notch groove (52) corresponding to each clamping plate (10), and the width of the notch groove (52) is greater than the width of the clamping plate (10).

3. The mixer for a single-liquid tin stripping solution for circuit boards according to claim 1, characterized in that: The bevel gear (7), screw (8), limiting rod (9) and clamping plate (10) are symmetrically arranged in three groups about the center of the bevel gear ring (6).

4. A mixer for a single-liquid tin stripping solution for circuit boards according to claim 1, characterized in that: The spur gear (12) is connected to a rotating handle (121), a bolt (122) is passed through the distal end of the rotating handle (121) and is screwed thereon, and the bottom end of the bolt (122) is tightly fitted to the surface of the mounting plate (5).

5. The mixer for single-liquid tin stripping solution for circuit boards according to claim 1, characterized in that: The mounting plate (5) is further provided with a screw barrel (13), which passes through the upper and lower surfaces of the mounting plate (5) and is threadedly connected thereto, and the lower end of the screw barrel (13) is rotatably connected to a buckle plate (14).

6. A mixer for a single-liquid tin stripping solution for circuit boards according to claim 5, characterized in that: The screw barrel (13) is internally rotatably connected to a rotating rod (15), the bottom end of the rotating rod (15) is fixed to the buckle plate (14), and the top end of the rotating rod (15) passes through the top end of the screw barrel (13).

7. The mixer for a single-liquid tin stripping solution for circuit boards according to claim 5, characterized in that: The upper surface of the gusset plate (14) and the side surface of the clamping plate (10) close to the mounting plate (5) are both connected with anti-slip pads (16).

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