Non-stop tin ash blowing air knife

Abstract

The utility model discloses a non-stop tin ash blowing air knife which comprises an air knife body, a connecting seat is rotatably arranged on the outer side of the lower end of the air knife body, a mounting plate is arranged on one side of the connecting seat, an upper air knife body and a lower air knife body are arranged on the lower side of the mounting plate, an air pipe quick connector is connected to the upper side of the upper air knife body, and an ash blowing opening is formed in the bottom of the upper air knife body. According to the air knife, the tin ash blowing devices are installed at the bottom and on the side face of the air knife, so that the frequency of manually cleaning tin ash by staff in the production process is increased, tin slag at the bottom of the air knife can be cleaned without shutdown, the shutdown time of equipment is shortened, the production efficiency is improved, and the production cost is reduced. And the tin ash blowing air knife uses nitrogen, the nitrogen continuously flows out obliquely downwards, it is guaranteed that the bottom of the air knife is in a nitrogen environment, generation of an oxidation layer is reduced, meanwhile, oblique downward blowing is adopted, the tin ash at the bottom of the air knife cannot be accumulated annularly but is accumulated in one direction, and therefore personnel can clean the tin ash conveniently.

Description

Technical Field

[0001] This utility model relates to the field of air knife technology, specifically an air knife for blowing tin ash without stopping the machine. Background Technology

[0002] In the production process of round solder strips, the tin layer is controlled by blowing with an air knife to reduce the tin content. During this process, tin ash, an oxide on the surface of molten tin, will continuously accumulate. When the accumulation reaches a certain level, it will cause blockage of the air knife and damage it. The traditional method of cleaning tin ash is to clean it manually. After a certain period of time, the tin ash at the bottom of the air knife is cleaned with a scraper. This manual method is time-consuming and frequent, and is prone to accidental operation and line breakage, resulting in production line capacity loss and increased scrap.

[0003] An existing patent application (application number 202222923834.2) describes an air knife holder with an automatic solder ash removal function. The holder includes an air knife body; a cleaning component connected to the air knife for cleaning solder dross and ash; and a clamping and sealing component connected to the cleaning component for connecting to an external pipe. In use, the clamping and sealing component allows for quick connection to the external pipe and ensures a tight seal between the device and the pipe. During soldering, air is injected, activating the cleaning component to remove excess hot solder from the solder strip and blow away solder ash and dross from under the air knife, thus achieving automatic cleaning of impurities such as solder ash. This improves soldering quality while reducing the operator's workload. However, it is not convenient to adjust the horizontal angle of the blowing nozzle, making it difficult to meet the needs of blowing at different horizontal angles. Utility Model Content

[0004] The purpose of this utility model is to provide a non-stop blowing air knife for blowing tin ash, so as to solve the problem that the horizontal angle of the blowing nozzle is not easy to adjust in the prior art, thus making it difficult to meet the blowing needs of different horizontal angles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a non-stop tin-blowing air knife, comprising an air knife body, a connecting seat rotatably provided on the lower outer side of the air knife body, an mounting plate provided on one side of the connecting seat, an upper air knife body and a lower air knife body provided on the lower side of the mounting plate, a quick-connect air pipe connector connected to the upper side of the upper air knife body, a ash-blowing port provided at the bottom of the upper air knife body, and the air outlet end of the ash-blowing port is inclined downwards, and an electric motor is connected between the connecting seat and the air knife body through a gear set.

[0006] Furthermore, the air knife body has a funnel-shaped air knife hole in the middle, and the upper side wall of the air knife body also has a mounting hole.

[0007] Furthermore, the upper air blade body and the mounting plate are fixed together by a first bolt, and the upper air blade body and the lower air blade body are fixed together by a second screw.

[0008] Furthermore, the gear set includes a driven gear ring disposed on the outer side of the lower end of the mounting plate, and one end of the motor is provided with a driving gear that meshes with the driven gear ring.

[0009] Furthermore, the motor is a stepper motor, and the motor is fixedly mounted on the outer wall of the air knife body via a base.

[0010] Furthermore, both the air knife body and the connecting seat are provided with a limiting groove on one side, and multiple balls are provided in the limiting groove.

[0011] Furthermore, the tilt angle of the soot blowing port relative to the connecting seat is between 40 and 75°.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model extends the frequency of manual cleaning of tin ash by installing a tin ash blowing device at the bottom and side of the air knife during production. It allows for cleaning of tin ash at the bottom of the air knife without stopping the machine, reducing equipment downtime and increasing production capacity. Moreover, the air knife uses nitrogen gas, and the nitrogen gas flows out continuously at an angle downwards, ensuring a nitrogen environment at the bottom of the air knife and reducing the formation of an oxide layer. At the same time, the angled downward blowing method ensures that the tin ash at the bottom of the air knife does not accumulate in a ring shape, but accumulates in one direction, which facilitates cleaning by personnel.

[0014] 2. In this utility model, the connecting seat and the air knife body are connected by a gear set and an electric motor. The gear set includes a driven gear ring set on the outer side of the lower end of the mounting plate. One end of the electric motor is provided with a driving gear that meshes with the driven gear ring. This allows the connecting seat to be rotated horizontally by the electric motor and the gear set, thereby adjusting the horizontal operating angle of the soot blowing port. This can meet the soot blowing needs at different horizontal angles, and the rotation adjustment is convenient and quick.

[0015] 3. This utility model has a limiting groove on one side of both the air knife body and the connecting seat, and multiple balls are provided in the limiting groove. This allows the sliding friction between the air knife body and the connecting seat to be changed into rolling friction, which helps to improve the smoothness and stability of the connecting seat rotating on the outside of the air knife body. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the main cross-section of the air knife body of this utility model.

[0020] In the diagram: 1. Air knife body; 2. Air knife hole; 3. Mounting hole; 4. Connecting seat; 5. Mounting plate; 6. Upper air knife body; 7. Lower air knife body; 8. Motor; 9. Base; 10. Drive gear; 11. Driven gear ring; 12. Quick connector for air pipe; 14. Limiting groove; 15. Ball bearing; 16. First bolt. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the utility model, a non-stop tin ash blowing air knife includes an air knife body 1. The air knife body 1 has a funnel-shaped air knife hole 2 in the middle. The upper side wall of the air knife body 1 also has a mounting hole 3. A connecting seat 4 is rotatably provided on the lower outer side of the air knife body 1. A mounting plate 5 is provided on one side of the connecting seat 4. An upper air knife body 6 and a lower air knife body 7 are provided on the lower side of the mounting plate 5. A quick air pipe connector 12 is connected to the upper side of the upper air knife body 6. A ash blowing port is provided at the bottom of the upper air knife body 6. The inclination angle of the ash blowing port relative to the connecting seat 4 is between 40-75°. The air knife is blown at an angle downwards, so that the tin ash at the bottom of the air knife cannot accumulate in a ring, but accumulates in one direction. This makes it easier for personnel to clean and can extend the frequency of manual cleaning of tin ash by employees during production. The air knife bottom tin slag can be cleaned without stopping the machine, reducing equipment downtime and increasing production capacity.

[0023] like Figure 1 and Figure 2As shown, in order to meet the needs of soot blowing at different horizontal angles, a motor 8 is connected between the connecting seat 4 and the air knife body 1 via a gear set. The gear set includes a driven gear ring 11 located on the outer side of the lower end of the mounting plate 5. One end of the motor 8 is provided with a driving gear 10 that meshes with the driven gear ring 11. The motor 8 is a stepper motor, and the motor 8 is fixedly mounted on the outer wall of the air knife body 1 via a base 9. This allows the connecting seat 4 to be rotated horizontally by the motor 8 and the gear set, thereby adjusting the horizontal angle of the soot blowing port. This can meet the needs of soot blowing at different horizontal angles, and the rotation adjustment is convenient and quick.

[0024] like Figure 1 and Figure 2 As shown, in order to install and fix the upper wind knife body 6 and the lower wind knife body 7, the upper wind knife body 6 and the mounting plate 5 are connected and fixed with the first bolt 16, and the upper wind knife body 6 and the lower wind knife body 7 are connected and fixed with the second screw, which facilitates the installation and fixing of the upper wind knife body 6 and the lower wind knife body 7.

[0025] like Figure 1 and Figure 3 As shown, in order to improve the stability of the horizontal rotation of the connecting seat 4, both the air knife body 1 and the connecting seat 4 are provided with a limiting groove 14 on one side, and multiple balls 15 are provided in the limiting groove 14, so that the sliding friction between the air knife body 1 and the connecting seat 4 can be changed into rolling friction, which is beneficial to improving the smoothness and stability of the connecting seat 4 rotating on the outside of the air knife body 1.

[0026] The working principle and usage process of this utility model are as follows: During use, the air knife body 1 is equipped with a connecting seat 4, a mounting plate 5, an upper air knife body 6, a lower air knife body 7, and a ash blowing port, which are rotated on the outer side of the lower end. The air outlet of the ash blowing port is set downward, which can extend the frequency of manual cleaning of tin ash by employees during production. The tin slag at the bottom of the air knife can be cleaned without stopping the machine, reducing equipment downtime and increasing production capacity. Moreover, the air knife for blowing tin ash uses nitrogen, and the nitrogen flows out continuously at an angle downward, ensuring that the bottom of the air knife is in a nitrogen environment, reducing the formation of an oxide layer. At the same time, the downward angled blowing ensures that the tin ash at the bottom of the air knife does not accumulate in a ring, but accumulates in one direction, which makes it easier for personnel to clean.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A non-stop tin-blowing air knife, comprising an air knife body (1), characterized in that: The air knife body (1) is provided with a connecting seat (4) rotatably on the outer side of its lower end. The connecting seat (4) is provided with a mounting plate (5) on one side. The mounting plate (5) is provided with an upper air knife body (6) and a lower air knife body (7) on its lower side. The upper air knife body (6) is connected to a quick-connect air pipe (12). The bottom of the upper air knife body (6) is provided with a ash blowing port, and the air outlet of the ash blowing port is inclined downward. The connecting seat (4) and the air knife body (1) are connected by a motor (8) through a gear set.

2. The non-stop solder ash blowing air knife according to claim 1, characterized in that: The air knife body (1) has a funnel-shaped air knife hole (2) in the middle, and the upper side wall of the air knife body (1) is also provided with a mounting hole (3).

3. The non-stop solder ash blowing air knife according to claim 1, characterized in that: The upper air blade body (6) and the mounting plate (5) are connected and fixed by a first bolt (16), and the upper air blade body (6) and the lower air blade body (7) are connected and fixed by a second screw.

4. The non-stop solder ash blowing air knife according to claim 1, characterized in that: The gear set includes a driven gear ring (11) disposed on the outer side of the lower end of the mounting plate (5), and a driving gear (10) is provided at one end of the motor (8) and meshes with the driven gear ring (11).

5. The non-stop tin-blowing air knife according to claim 4, characterized in that: The motor (8) is a stepper motor, and the motor (8) is fixedly mounted on the outer wall of the air knife body (1) via a base (9).

6. The non-stop tin-blowing air knife according to claim 1, characterized in that: The air knife body (1) and the connecting seat (4) are both provided with a limiting groove (14) on one side, and a plurality of balls (15) are provided in the limiting groove (14).

7. The non-stop tin-blowing air knife according to claim 1, characterized in that: The tilt angle of the soot blowing port (13) relative to the connecting seat (4) is between 45° and 75°.

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