Soldering flux spraying device and crest welder

Abstract

The utility model relates to the technical field of welding equipment, and provides a soldering flux spraying device and a crest welder, the soldering flux spraying device comprises a sprayer, a liquid supply pipe, an induction part and an air supply pipe, the liquid supply pipe is communicated with the nozzle; the sensing part is arranged on the liquid supply pipe and is suitable for detecting the flow of the liquid supply pipe; the air supply pipe is communicated with the nozzle; a first adjusting valve is arranged on the air supply pipe and adjusts the flow of the air supply pipe based on positive correlation of the flow of the liquid supply pipe. According to the spraying device for the soldering flux, whether the spraying device for the soldering flux is blocked or not can be judged through the flow of the liquid supply pipe detected by the sensing part, so that countermeasures can be taken in time, and the influence on welding work is avoided; the first adjusting valve can adjust the flow of the gas supply pipe based on the positive correlation of the flow of the liquid supply pipe, so that the flow of the gas supply pipe is reasonably adjusted, and a better welding effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a flux spray device and a wave soldering machine. Background Art

[0002] A flux spray device is used to spray flux onto the surface of electronic components to be soldered. It atomizes the flux and evenly applies it to the surface of the electronic components, ensuring soldering quality and efficiency. Currently, flux contains precipitates that can clog the flux spray device. Certain components in the flux can oxidize upon contact with oxygen in the air, forming solid or semi-solid substances that can also clog the flux spray device. However, most flux spray devices are unable to identify clogged flux spray devices, making it difficult to monitor and prevent them in a timely manner. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the related art. To this end, the present invention provides a flux spray device that can promptly identify blockage in the flux spray device, thereby facilitating timely response measures.

[0004] The utility model also discloses a wave soldering machine.

[0005] The utility model provides a flux spraying device, comprising:

[0006] A sprayer having a nozzle;

[0007] a liquid supply pipe, connected to the nozzle;

[0008] The sensing part is provided on the liquid supply pipe and is suitable for detecting the flow rate of the liquid supply pipe;

[0009] An air supply pipe is connected to the nozzle; a first regulating valve is provided on the air supply pipe, and the first regulating valve regulates the flow of the air supply pipe based on the positive correlation of the flow of the liquid supply pipe.

[0010] According to the soldering flux spray device of the embodiment of the present invention, the soldering flux spray device further includes a second regulating valve, which is disposed on the liquid supply pipe and is suitable for regulating the flow of the liquid supply pipe.

[0011] According to the soldering flux spray device of the embodiment of the present invention, the soldering flux spray device further includes a pressure reducing valve, which is provided on the air supply pipe.

[0012] According to the flux spray device of the embodiment of the present invention, the flux spray device also includes a storage container and a liquid level sensor. The storage container is suitable for storing flux, and the liquid supply pipe is connected to the storage container; the liquid level sensor is arranged inside the storage container, and the liquid level sensor is suitable for detecting the liquid level inside the storage container.

[0013] According to the flux spray device of the embodiment of the present invention, a storage tank is formed inside the storage container, the bottom of the storage tank is an inclined surface, and the side wall of the storage container is provided with a liquid outlet, which is located at the lowest position of the inclined surface and is connected to the liquid supply pipe.

[0014] According to the flux spray device of the embodiment of the present utility model, the sprayer includes an atomizing seat, and an atomizing chamber is arranged in the atomizing seat; the atomizing seat is cylindrical, and a connecting groove is provided at one end thereof, and a liquid inlet and an air inlet are provided at the bottom of the connecting groove; the liquid inlet is connected to the liquid supply pipe and the atomizing chamber, and the air inlet is connected to the air supply pipe and the atomizing chamber.

[0015] According to the soldering flux spray device of the embodiment of the present invention, the sprayer further includes a fixing seat connected to the atomizing seat and the nozzle is arranged on the fixing seat.

[0016] According to the soldering flux spray device of the embodiment of the present invention, a protective portion is provided on the fixing seat, and the protective portion is provided on the peripheral side of the nozzle.

[0017] According to the flux spraying device of the embodiment of the present invention, the flux spraying device also includes a transmission track and a position sensor. The transmission track is suitable for conveying the object to be sprayed, and the position sensor is suitable for obtaining the position information of the object to be sprayed located on the transmission track; the sprayer is arranged on one side of the transmission track, and the position sensor is arranged corresponding to the sprayer.

[0018] The utility model also provides a wave soldering machine, which includes a flux spraying device.

[0019] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0020] The liquid supply pipe transports the flux to the sprayer, which atomizes the flux and sprays it onto the electronic components through a nozzle; the flow of the liquid supply pipe detected by the sensing part can be used to determine whether the flux spray device is blocked so that timely countermeasures can be taken to avoid affecting the progress of welding work; the first regulating valve can adjust the flow of the air supply pipe based on the positive correlation with the flow of the liquid supply pipe, so as to reasonably adjust the flow of the air supply pipe to achieve better welding results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a flux spray device provided by an embodiment of the present utility model;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the sprayer of the flux spray device provided in an embodiment of the utility model.

[0024] Reference numerals:

[0025] 100, sprayer; 110, nozzle; 120, atomizing seat; 121, atomizing chamber; 122, connecting groove; 1221, liquid inlet; 1222, air inlet; 130, fixing seat; 131, protective part;

[0026] 200, liquid supply pipe;

[0027] 310, sensing unit; 320, second regulating valve;

[0028] 400, first regulating valve;

[0029] 500, controller;

[0030] 600, pressure reducing valve;

[0031] 700, storage container; 710, storage tank; 711, inclined surface; 720, liquid outlet;

[0032] 800, gas supply pipe;

[0033] 910, transmission track; 920, position sensor; 930, liquid level sensor. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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 the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0037] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0039] The first embodiment of the present invention provides a flux spraying device, see Figure 1, including a sprayer 100, a liquid supply pipe 200, a sensing part 310 and an air supply pipe 800, the sprayer 100 has a nozzle 110; the liquid supply pipe 200 is connected to the nozzle 110; the sensing part 310 is arranged on the liquid supply pipe 200, and the sensing part 310 is suitable for detecting the flow of the liquid supply pipe 200; the air supply pipe 800 is connected to the nozzle 110; a first regulating valve 400 is provided on the air supply pipe 800, and the first regulating valve 400 regulates the flow of the air supply pipe 800 based on the positive correlation of the flow of the liquid supply pipe 200.

[0040] It can be understood that the liquid supply pipe 200 is connected to the nozzle 110, and the liquid supply pipe 200 transports the flux to the sprayer 100, and the sprayer 100 atomizes the flux and sprays it onto the electronic components through the nozzle 110; the flow of the liquid supply pipe 200 detected by the sensing part 310 can be used to determine whether the spray device of the flux is blocked, so as to take timely countermeasures to avoid affecting the progress of welding work; the first regulating valve 400 can adjust the flow of the air supply pipe 800 based on the positive correlation of the flow of the liquid supply pipe 200, so as to reasonably adjust the flow of the air supply pipe 800 to achieve better welding effect.

[0041] It can be understood that if the sensing part 310 detects that the flow inside the liquid supply pipe 200 is reduced, it is determined that the spray device of the flux is blocked; if the sensing part 310 detects that the flow inside the liquid supply pipe 200 is zero, the welding work is stopped; when the spray device of the flux is blocked, the flow inside the liquid supply pipe 200 is reduced, and accordingly, the first regulating valve 400 adjusts the flow of the gas supply pipe 800 according to the flow inside the liquid supply pipe 200, so that the ratio of the flux and gas flowing into the sprayer 100 is within an appropriate ratio range, which can help control the temperature and atmosphere during the welding process, reduce the occurrence of welding spatter, and improve the welding quality.

[0042] See also Figure 1 In one embodiment, the flux spray device further includes a second regulating valve 320 , which is disposed on the liquid supply pipe 200 and adapted to regulate the flow of the liquid supply pipe 200 .

[0043] It is understood that the second regulating valve 320 can adjust the flow rate of the liquid supply pipe 200 according to different welding conditions. For example, when spraying a larger object, the flow rate within the liquid supply pipe 200 can be appropriately increased to increase the amount of flux sprayed per unit time and improve spraying efficiency. Correspondingly, the first regulating valve 400 can adjust the flow rate of the gas supply pipe 800 accordingly based on the flow rate of the liquid supply pipe 200 to ensure high-quality welding.

[0044] See also Figure 1In one embodiment, the flux spray device further includes a controller 500, which is electrically connected to the sensing unit 310 and the second regulating valve 320. The sensing unit 310 transmits the acquired flow rate information within the liquid supply pipe 200 to the controller 500. The controller 500 controls the operation of the second regulating valve 320 based on the flow rate information within the liquid supply pipe 200, thereby adjusting the flow rate of the air supply pipe 800 in a positive correlation with the flow rate of the liquid supply pipe 200. The controller 500 can be electrically connected to the first regulating valve 400. When the controller 500 determines that the flux spray device is partially clogged, it can adjust the flow rate of the air supply pipe 800 by controlling the first regulating valve 400. Generally, the controller 500 is a circuit board, the sensing unit 310 is a flow meter, and the first regulating valve 400 and the second regulating valve 320 are both control valves.

[0045] See also Figure 1 In one embodiment, the flux spray device further includes a pressure reducing valve 600 , which is disposed on the gas supply pipe 800 .

[0046] The pressure reducing valve 600 is suitable for regulating the gas flow inside the gas supply pipe 800. The pressure reducing valve 600 can limit the air pressure inside the gas supply pipe 800 to a certain air pressure range, avoiding the air pressure inside the gas supply pipe 800 being too high, so as to ensure that the gas inside the gas supply pipe 800 operates within a safe range, improve the stability of the gas flow inside the gas supply pipe 800, and avoid damage to the gas supply pipe 800 due to air pressure fluctuations; the pressure reducing valve 600 can also be electrically connected to the controller 500, and the controller 500 can control the flow inside the gas supply pipe 800 through the pressure reducing valve 600 to ensure that the gas is transmitted at an appropriate speed and pressure inside the gas supply pipe 800; setting the pressure reducing valve 600 and the second regulating valve 320 can provide double protection, ensuring that when one of the pressure reducing valve 600 and the second regulating valve 320 fails, the other can continue to work normally, ensuring the stable operation of the flux spray device, and improving the reliability and safety of the flux spray device.

[0047] In one embodiment, the first regulating valve 400 can be an electromagnetic flow control valve. The flow sensor of the electromagnetic flow control valve can detect the flow inside the liquid supply pipe 200 and generate a signal. The control system of the electromagnetic flow control valve processes the signal and transmits it to the electromagnet assembly of the electromagnetic flow control valve. The electromagnet assembly adjusts the valve opening of the electromagnetic flow control valve, thereby monitoring and adjusting the flow inside the liquid supply pipe 200.

[0048] It can be understood that an electromagnetic flow control valve is used as the first regulating valve 400 to control the flow inside the liquid supply pipe 200, and the flow sensor of the electromagnetic flow control valve serves as the sensing part 310 to detect the flow inside the liquid supply pipe 200. Through a single part of the electromagnetic flow control valve, the flow inside the liquid supply pipe 200 can be regulated and detected, thereby reducing the installation steps. At the same time, the electromagnetic flow control valve can adjust itself according to the detection results of the liquid supply pipe 200 without going through the controller 500, thereby improving the response speed and operation stability. Due to the use of electromagnetic force control, the electromagnetic flow control valve has a fast response speed, can quickly adjust the flow, and does not require mechanical transmission components, thereby reducing maintenance costs and failure rates. In addition, the electromagnetic flow control valve can provide high-precision flow control and can achieve precise flow regulation and control as needed.

[0049] See also Figure 1 In one embodiment, the flux spray device also includes a storage container 700 and a liquid level sensor 930. The storage container 700 is suitable for storing flux, and the liquid supply pipe 200 is connected to the storage container 700; the liquid level sensor 930 is arranged inside the storage container 700, and the liquid level sensor 930 is suitable for detecting the liquid level inside the storage container 700.

[0050] It is understood that if the liquid level sensor 930 detects that the flux liquid in the storage container 700 is above a set level and the sensor detects a decrease in the flow rate in the liquid supply pipe 200, the flux spray device is determined to be clogged. The liquid level sensor 930 determines whether the flux in the storage container 700 is sufficient. If the flux liquid level in the storage container 700 falls below the set level, the flow rate in the liquid supply pipe 200 will also decrease or become zero. Therefore, the provision of the liquid level sensor 930 can detect the remaining flux and prevent misjudgment. The liquid level sensor 930 can be electrically connected to the controller 500 to facilitate signal transmission.

[0051] See also Figure 1In one embodiment, a storage tank 710 is formed inside the storage container 700. The bottom of the storage tank 710 is an inclined surface 711. A liquid outlet 720 is provided on the side wall of the storage container 700. The liquid outlet 720 is located at the lowest position of the inclined surface 711 and is connected to the liquid supply pipe 200. The inclined surface 711 makes it easier for the flux inside the storage container 700 to flow to the liquid supply pipe 200, reducing the accumulation of liquid inside the storage container 700 and facilitating the complete discharge of the flux from the storage container 700 to the outside, thereby avoiding waste of the flux. The provision of the inclined surface 711 can reduce the formation of dead corners and liquid accumulation areas inside the storage container 700, making cleaning easier and more thorough, and facilitating the cleanliness and hygiene of the storage container 700. In addition, the inclined bottom wall can increase the flow speed and directionality of the flux inside the storage container 700, thereby improving efficiency.

[0052] It should be noted that the liquid level is set to be higher than or equal to the position of the liquid outlet 720 of the liquid supply pipe 200 .

[0053] See also Figures 1 to 2 In one embodiment, the sprayer 100 includes an atomizing seat 120, in which an atomizing chamber 121 is provided. The atomizing seat 120 is cylindrical, and a connecting groove 122 is provided at one end thereof. A liquid inlet 1221 and an air inlet 1222 are provided at the bottom of the connecting groove 122. The liquid inlet 1221 connects the liquid supply pipe 200 and the atomizing chamber 121, and the air inlet 1222 connects the air supply pipe 800 and the atomizing chamber 121.

[0054] It can be understood that the flux enters the atomization chamber 121 through the liquid supply pipe 200, and the gas enters the atomization chamber 121 through the air supply pipe 800, and the flux is atomized inside the atomization chamber 121; since the liquid inlet 1221 and the air inlet 1222 are both arranged at the bottom of the connecting groove 122, the liquid inlet 1221 connects the liquid supply pipe 200 and the atomization chamber 121, and the air inlet 1222 connects the air supply pipe 800 and the atomization chamber 121, therefore, the side wall of the connecting groove 122 can guide the air supply pipe 800 and the liquid supply pipe 200, reduce the bending of the air supply pipe 800 and the liquid supply pipe 200, maintain the relative position of the liquid supply pipe 200 and the liquid inlet 1221 and the relative position of the air supply pipe 800 and the air inlet 1222, and reduce the risk of the liquid supply pipe 200 or the air supply pipe 800 being out of coordination.

[0055] See also Figures 1 to 2 In one embodiment, the sprayer 100 further includes a fixing seat 130 , which is connected to the atomizing seat 120 and on which the nozzle 110 is disposed. A protective portion 131 is disposed on the fixing seat 130 , and the protective portion 131 is disposed on the peripheral side of the nozzle 110 .

[0056] It is understood that the protective portion 131 is disposed around the nozzle 110. During spraying, the protective portion 131 can serve as a guide, controlling the spray direction and range of the flux to achieve a uniform spraying effect. Furthermore, the protective portion 131 can prevent the flux from splashing outside the spraying range. The protective portion 131 can be horn-shaped or cylindrical.

[0057] See also Figure 1 In one embodiment, the flux spray device also includes a transmission track 910 and a position sensor 920. The transmission track 910 is suitable for transmitting the object to be sprayed, and the position sensor 920 is suitable for obtaining the position information of the object to be sprayed located on the transmission track 910; the sprayer 100 is arranged on one side of the transmission track 910, and the position sensor 920 is arranged corresponding to the sprayer 100.

[0058] When the position sensor 920 detects the object to be sprayed, the nozzle 110 sprays the object to be sprayed; the position sensor 920 can accurately detect the position of the object to be sprayed and output a corresponding signal; the controller 500 can be connected to the position sensor 920 and the sprayer 100 respectively, and the position of the object to be sprayed is detected by the position sensor 920. According to the position of the object to be sprayed, the spraying time of the sprayer 100 is controlled to achieve a precise spraying effect.

[0059] The second embodiment of the present invention further provides a wave soldering machine, comprising the above-mentioned flux spray device.

[0060] It can be understood that the flux spray device has the beneficial effects of the above embodiments, and the wave soldering machine correspondingly has the beneficial effects of the above embodiments. Its specific implementation method can refer to the above embodiments, and this application will not go into details.

[0061] Finally, it should be noted that the above embodiments are intended only to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A flux spray device, characterized in that: include: A sprayer having a nozzle; a liquid supply pipe, connected to the nozzle; a sensing portion, disposed on the liquid supply pipe and adapted to detect the flow rate of the liquid supply pipe; an air supply pipe connected to the nozzle; a first regulating valve is provided on the air supply pipe, and the first regulating valve regulates the flow of the air supply pipe in a positive correlation based on the flow of the liquid supply pipe; a second regulating valve, the second regulating valve being disposed on the liquid supply pipe and being adapted to regulate the flow of the liquid supply pipe; The controller is electrically connected to the sensing part, the first regulating valve and the second regulating valve. The sensing part sends the acquired flow information inside the liquid supply pipe to the controller. The controller controls the operation of the second regulating valve according to the flow information inside the liquid supply pipe to adjust the flow of the air supply pipe based on the positive correlation of the flow of the liquid supply pipe. When the controller determines that the spray device of the flux is partially blocked, the flow of the air supply pipe can be adjusted by controlling the first regulating valve.

2. The flux spraying device according to claim 1, characterized in that: The flux spray device further comprises a pressure reducing valve, which is arranged on the air supply pipe.

3. The flux spraying device according to claim 1, characterized in that: The flux spray device also includes a storage container and a liquid level sensor. The storage container is suitable for storing flux, and the liquid supply pipe is connected to the storage container; the liquid level sensor is arranged inside the storage container, and the liquid level sensor is suitable for detecting the liquid level inside the storage container.

4. The flux spraying device according to claim 3, characterized in that: A storage tank is formed inside the storage container, the bottom of the storage tank is an inclined surface, and a liquid outlet is provided on the side wall of the storage container. The liquid outlet is located at the lowest position of the inclined surface and is connected to the liquid supply pipe.

5. The flux spraying device according to any one of claims 1 to 4, characterized in that: The sprayer includes an atomizing seat with an atomizing chamber provided therein; the atomizing seat is cylindrical, with a connecting groove provided at one end thereof, and a liquid inlet and an air inlet provided at the bottom of the connecting groove; the liquid inlet is connected to the liquid supply pipe and the atomizing chamber, and the air inlet is connected to the air supply pipe and the atomizing chamber.

6. The flux spraying device according to claim 5, characterized in that: The sprayer further comprises a fixing seat connected to the atomizing seat and the nozzle is arranged on the fixing seat.

7. The flux spraying device according to claim 6, characterized in that: The fixing seat is provided with a protection portion, and the protection portion is provided on the peripheral side of the nozzle.

8. The flux spraying device according to any one of claims 1 to 4, characterized in that: The flux spray device also includes a transmission track and a position sensor, the transmission track is suitable for conveying the object to be sprayed, and the position sensor is suitable for obtaining the position information of the object to be sprayed located on the transmission track; the sprayer is arranged on one side of the transmission track, and the position sensor is arranged corresponding to the sprayer.

9. A wave soldering machine, characterized in that: A spray device comprising the soldering flux according to any one of claims 1 to 8.

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