Soldering flux spraying equipment

Abstract

The utility model discloses soldering flux spraying equipment, which comprises a box body with a cuboid structure, a spraying room and a drying room are arranged in the box body, a spray head for spraying soldering flux upwards is arranged in the spraying room, and an electric heating device is arranged in the drying room; the spray head pipeline is connected with an electronic pump; a first opening and a second opening are formed in the positions, corresponding to the spraying room and the drying room, of the upper surface of the box body, and a square-frame-shaped carrier used for clamping a steel mesh is movably arranged on the box body. And a driving mechanism for driving the carrier to move between the first opening and the second opening is arranged on the box body. The device has the advantages that scaling powder is sprayed upwards regularly through the electronic pump working in a delayed mode, quantitative scaling powder is sprayed to the steel mesh, then the steel mesh is conveyed to the drying room to be dried through the driving mechanism, semi-automatic operation is achieved, the problems of non-uniformity, non-uniformity and the like caused by manual blade coating are solved, and the production efficiency is improved. And the quality and the efficiency of coating the soldering flux are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to a device for spraying flux onto a stencil before printing. Background Technology

[0002] In the PCB (Printed Circuit Board) printing process, the stencil (also known as a stencil or SMT template) is a key tool, mainly used for precisely applying solder paste in Surface Mount Technology (SMT). Before applying solder paste, flux is usually applied, typically manually using a scraper or similar method. However, this process makes it difficult to precisely control the amount of flux applied, and the uniformity of the application is hard to control. Utility Model Content

[0003] The purpose of this utility model is to provide a flux spraying device that solves or partially solves the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A flux spraying device includes a rectangular box with a spraying chamber and a drying chamber inside. A nozzle for spraying flux upwards is installed in the spraying chamber, and an electric heating device is installed in the drying chamber. The nozzle is connected to an electric pump. A first opening and a second opening are provided on the upper surface of the box corresponding to the spraying chamber and the drying chamber. A square-shaped carrier for clamping a steel mesh is movably mounted on the box. A driving mechanism is provided on the box to drive the carrier to move between the first opening and the second opening.

[0006] Preferably, the box body is provided with a U-shaped tray, the tray is provided with a fog-proof strip below it, a horizontal groove is provided on each side of the box body, a side plate is provided on each side of the tray, a number of rollers are provided on the side plate, the rollers are movably disposed in the groove, and the carrier is locked in the tray.

[0007] Preferably, the driving mechanism includes a drive motor and a rotating shaft respectively disposed at one end of the housing. A synchronous pulley is disposed at each end of the rotating shaft, and two synchronous pulleys are disposed at the other end of the housing. A synchronous belt is sleeved on the two synchronous pulleys on the same side. The drive motor drives one of the synchronous belts to rotate, and the tray is connected to the two synchronous belts.

[0008] Preferably, the carrier is provided with two handles, and one end of the housing is provided with at least one photoelectric sensor for detecting the handles.

[0009] Preferably, the box is vertically provided with a partition to separate the spraying room and the drying room.

[0010] Preferably, the electronic pump is a time-delay pump with adjustable operating time.

[0011] Preferably, an equipment room is provided at the bottom of the housing, and the pipes connecting the nozzles and the delay pump are located in the equipment room.

[0012] Preferably, the bottom of the spray booth is replaceably provided with a sponge pad for absorbing excess flux.

[0013] The beneficial effects of this invention are: by using an electronic pump that operates with a time delay, flux is periodically sprayed upwards, and a fixed amount of flux is sprayed onto the stencil. Then, the stencil is sent to the drying room for drying by a drive mechanism, which realizes semi-automatic operation, reduces problems such as unevenness and inconsistent quantity caused by manual scraping, and improves the quality and efficiency of flux coating. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure after removing part of the structure of the first embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure after removing part of the structure of the first embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure after removing part of the structure of the first embodiment of this utility model. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0019] In the description of this utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0020] like Figures 1 to 4 As shown, the flux spraying equipment of this utility model includes a rectangular box 10. A vertical partition (not shown) can be installed inside the box 10 to separate a spraying room 12 and a drying room 14. An equipment room (not labeled) is provided at the bottom of the box 10.

[0021] A spray nozzle 16 for spraying flux upwards is installed in the spraying chamber 12, and an electric heating device (not shown) is installed in the drying chamber 14; the spray nozzle 16 is connected to an electric pump (not shown). A first opening (not shown) and a second opening 18 are provided on the upper surface of the housing 10 corresponding to the spraying chamber 12 and the drying chamber 14. A square-shaped carrier 20 for clamping steel mesh is movably mounted on the housing 10. A drive mechanism is provided on the housing 10 to move the carrier 20 between the first opening and the second opening 18.

[0022] Furthermore, a U-shaped tray 22 is provided on the housing 10, and a foam-proof strip 42 made of sponge is provided below the tray 22. A horizontal sliding groove 24 is provided on each side of the housing 10, and a side plate 26 is provided on each side of the tray 22. Several rollers 28 are provided on the side plate 26, and the rollers 28 are movably disposed within the sliding groove 24. The carrier 20 is secured within the tray 22. The drive mechanism includes a drive motor 30 and a rotating shaft 32 located at one end of the housing 10. A synchronous pulley 34 is provided at each end of the rotating shaft 32, and two synchronous pulleys 34 are correspondingly provided on the housing 10. A synchronous belt 36 is fitted onto the two synchronous pulleys 34 on the same side. The drive motor 30 drives one of the synchronous belts 36 to rotate, and the tray 22 is connected to the two synchronous belts 36. Two handles 38 are provided on the carrier 20, and two photoelectric sensors 40 for detecting the handles 38 are provided at one end of the housing 10.

[0023] Furthermore, the electronic pump is a time-delay pump with adjustable operating time (not shown).

[0024] Furthermore, the pipes connecting the nozzle 16 and the delay pump are installed in the equipment room.

[0025] Furthermore, a sponge pad (not shown) is replaceably provided at the bottom of the spray booth 12 to absorb excess flux.

[0026] The working principle of this utility model is as follows: A steel mesh is set on the carrier 20 and then manually placed on the tray 22. The steel mesh is positioned directly above the nozzle through the first opening. The delay pump is manually activated, and liquid flux is sprayed upward through the nozzle onto the steel mesh via a pipeline. The delay pump, such as a delay relay-controlled pump, is a pump that can control the working time. By controlling the spraying time, the amount of flux sprayed can be precisely controlled. Flux that falls during spraying is absorbed by a sponge pad, and the cleaning work can be completed by periodically replacing the sponge pad. After spraying is completed, the drive mechanism transfers the tray 22 to the drying chamber 14. Through a certain drying time, the flux solidifies faster, making it convenient for subsequent use. The drying chamber 14 can be continuously filled with nitrogen to prevent flux oxidation.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flux spraying device, comprising a rectangular box, characterized in that: The housing contains a spraying chamber and a drying chamber. The spraying chamber contains a nozzle that sprays flux upwards, and the drying chamber contains an electric heating device. The nozzle pipe is connected to an electric pump. The upper surface of the housing has a first opening and a second opening corresponding to the spraying chamber and the drying chamber. A square frame carrier for clamping steel mesh is movably mounted on the housing. The housing is equipped with a drive mechanism that drives the carrier to move between the first opening and the second opening.

2. The flux spraying equipment according to claim 1, characterized in that, The box body is provided with a U-shaped tray, and a fog-proof strip is provided below the tray. A sliding groove is provided on each side of the box body. A side plate is provided on each side of the tray. Several rollers are provided on the side plate. The rollers are movably disposed in the sliding groove. The carrier is locked in the tray.

3. The flux spraying equipment according to claim 2, characterized in that, The drive mechanism includes a drive motor and a rotating shaft respectively disposed at one end of the housing. A synchronous pulley is disposed at each end of the rotating shaft, and two synchronous pulleys are disposed at the other end of the housing. A synchronous belt is sleeved on the two synchronous pulleys on the same side. The drive motor drives one of the synchronous belts to rotate, and the tray is connected to the two synchronous belts.

4. The flux spraying equipment according to claim 3, characterized in that, The vehicle is equipped with two handles, and at least one photoelectric sensor for detecting the handles is provided at one end of the housing.

5. The flux spraying equipment according to claim 1, characterized in that, The box is vertically equipped with a partition to separate the spraying room and the drying room.

6. The flux spraying equipment according to claim 1, characterized in that, The electronic pump is a time-delay pump with adjustable operating time.

7. The flux spraying equipment according to claim 6, characterized in that, The bottom of the housing is equipped with an equipment room, and the pipes connecting the nozzles and the delay pump are located in the equipment room.

8. The flux spraying equipment according to claim 1, characterized in that, The bottom of the spray booth can be replaced with a sponge pad for absorbing excess flux.

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