Soldering flux conveying device

Abstract

The utility model discloses a welding flux conveying device and relates to the technical field of welding material conveying, the welding flux conveying device comprises a support, a conveying assembly, a driving part and an inert gas supply part, the conveying assembly comprises a conveying pipeline and a spiral body, the conveying pipeline is arranged on the support, and the spiral body is arranged on the support. The spiral body is rotatably arranged in the conveying pipeline, and a feeding port and a discharging port are formed in the two ends of the conveying pipeline respectively. The driving piece is arranged on the support, and an output shaft of the driving piece is connected with the spiral body; the inert gas supply part is arranged between the conveying pipeline and the driving part and is communicated with the conveying pipeline; according to the technical scheme, the safety of the welding flux conveying process can be improved.

Description

Technical Field

[0001] This utility model relates to the field of welding material conveying technology, and in particular to a flux conveying device. Background Technology

[0002] Submerged arc welding flux is a granular material used in submerged arc welding, primarily for protecting the weld pool, stabilizing the arc, and participating in the metallurgical reactions during welding. In the transport of welding materials, current technologies typically employ closed pipelines and augers. A motor drives the auger to rotate, transporting the flux from the inlet to the outlet, minimizing direct contact with the external environment and reducing the risk of dust spillage and flux moisture absorption. Although closed pipelines reduce contact with outside air, the flux may still come into contact with residual air within the pipeline during transport, leading to oxidation. This is especially problematic for fluxes containing metal powder, where mixing with oxygen during transport can form explosive dust clouds, compromising the safety of the flux during transport and consequently affecting welding operations. Utility Model Content

[0003] The main objective of this invention is to provide a flux delivery device that aims to improve the safety of the flux delivery process.

[0004] To achieve the above objectives, the flux delivery device proposed in this utility model includes:

[0005] support;

[0006] A conveying assembly, comprising a conveying pipe and a spiral, wherein the conveying pipe is disposed on the support, and the spiral is rotatably disposed within the conveying pipe, and an inlet and an outlet are respectively formed at both ends of the conveying pipe;

[0007] A driving component, wherein the driving component is disposed on the bracket, and the output shaft of the driving component is connected to the helical body; and

[0008] An inert gas supply unit is provided between the delivery pipe and the drive unit, and is connected to the delivery pipe.

[0009] In one embodiment, the inert gas supply unit includes an air compressor, a molecular sieve drying tower, and a mixing container. The output end of the air compressor is connected to the input end of the molecular sieve drying tower, the output end of the molecular sieve drying tower is connected to the input end of the mixing container, and the output end of the mixing container is connected to the delivery pipeline.

[0010] In one embodiment, the inert gas supply unit further includes a dew point sensor, an oxygen concentration sensor, and a controller. The dew point sensor and the oxygen concentration sensor are spaced apart at the output end of the mixing container, and the controller is electrically connected to the air compressor, the molecular sieve drying tower, the dew point sensor, and the oxygen concentration sensor.

[0011] In one embodiment, the flux delivery device includes a feed box disposed on the support and connected to the inlet.

[0012] In one embodiment, the flux delivery device includes a screening assembly, which includes a screening box and a screen. The end of the delivery pipe away from the drive member is connected to the screening box. The spiral body passes through the screening box and is rotatably connected to the side wall of the screening box. The screen is connected to the side wall of the screening box and located below the spiral body. The discharge port is opened on one side wall of the screening box and is located below the screen.

[0013] In one embodiment, the screening assembly includes an electromagnetic vibrator connected to the side wall of the screening box, the screen being slidably connected to the side wall of the screening box, and the output end of the electromagnetic vibrator being connected to the screen.

[0014] In one embodiment, the side wall of the screening box is provided with a positioning post, the positioning post includes a first positioning section and a second positioning section connected to each other, the cross-sectional dimension of the first positioning section is smaller than the cross-sectional dimension of the second positioning section, a connecting frame is provided on one side of the screen, the connecting frame is slidably sleeved on the first positioning section and limited between the second positioning section and the side wall of the screening box.

[0015] In one embodiment, the screening assembly includes a plurality of screens, the plurality of screens being spaced apart and connected to the sidewall of the screening box; and / or

[0016] The screening assembly includes a guide inclined plate, and a waste outlet is provided on one side wall of the screening box. The waste outlet is arranged opposite to the discharge outlet and is located below the screen. The guide inclined plate is connected to the edge of the waste outlet and the side wall of the screening box.

[0017] In one embodiment, the screening assembly includes a discharge plate and an electromagnetic vibrator. The discharge plate is connected to the edge of the discharge port and the side wall of the screening box, and is located below the screen. The discharge plate is inclined toward the discharge port. The electromagnetic vibrator is located on the bottom wall of the screening box, and the output end of the electromagnetic vibrator is connected to the discharge plate.

[0018] In one embodiment, the screening assembly includes a drawer plate, the screening box has an opening, and the two opposite side walls of the screening box have strip grooves. The drawer plate passes through the two strip grooves to cover the opening of the screening box.

[0019] In this utility model's technical solution, flux enters the conveying pipeline through the inlet and typically falls into the starting end of the auger under gravity. A driving component (motor and reducer) drives the auger to rotate, and the blades on the auger propel the flux forward. Inert gas enters the conveying pipeline through an inert gas supply component, forming a protective atmosphere, reducing the contact between the flux and oxygen, and preventing oxidation. The flux exits the conveying pipeline through the outlet and enters the next process stage (such as welding equipment). The inert gas supply component continuously supplies inert gas during the conveying process, forming a protective atmosphere, reducing the contact between the flux and oxygen, preventing oxidation, and improving welding quality. For fluxes containing metal powder, it also prevents the flux from mixing with oxygen to form an explosive dust cloud, improving the safety of the flux during conveying. The design and material selection of the auger ensure that the flux is not damaged during conveying, reducing particle breakage and ensuring welding quality. The inert gas supply component can be equipped with a gas flow sensor and controller to monitor and adjust the gas flow in real time, ensuring a stable conveying environment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an embodiment of the flux delivery device provided by this utility model;

[0022] Figure 2 A cross-sectional view of an embodiment of the flux delivery device provided by this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0024] Figure 4 An exploded structural diagram of an embodiment of the flux delivery device of this utility model is provided.

[0025] Figure 5 for Figure 4 Enlarged view of section B in the middle;

[0026] Figure 6 A cross-sectional view of another embodiment of the flux delivery device provided by this utility model.

[0027] Explanation of icon numbers:

[0028] 100. Flux conveying device; 1. Support frame; 2. Conveying assembly; 21. Conveying pipeline; 22. Spiral; 23. Inlet; 24. Outlet; 3. Drive unit; 4. Inert gas supply unit; 5. Conveying box; 6. Screening assembly; 61. Screening box; 611. Opening; 612. Strip chute; 62. Screen; 63. Electromagnetic vibrator; 64. Positioning column; 641. First positioning section; 642. Second positioning section; 65. Connecting frame; 66. Guide inclined plate; 67. Waste outlet; 68. Discharge plate; 69. Pull plate.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] 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 scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] This utility model proposes a flux delivery device 100.

[0034] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the flux delivery device 100 includes a support 1, a delivery component 2, a drive component 3, and an inert gas supply component 4. The delivery component 2 includes a delivery pipe 21 and a spiral 22. The delivery pipe 21 is disposed on the support 1, and the spiral 22 is rotatably disposed within the delivery pipe 21. The two ends of the delivery pipe 21 are respectively formed with an inlet 23 and an outlet 24. The drive component 3 is disposed on the support 1, and the output shaft of the drive component 3 is connected to the spiral 22. The inert gas supply component 4 is disposed between the delivery pipe 21 and the drive component 3, and is connected to the delivery pipe 21.

[0035] In this utility model, flux enters the conveying pipe 21 through the inlet 23 and typically falls into the starting end of the spiral 22 under gravity. The driving component 3 (motor and reducer) drives the spiral 22 to rotate, and the blades on the spiral 22 propel the flux forward. Inert gas enters the conveying pipe 21 through the inert gas supply component 4 to form a protective atmosphere, reduce the contact between the flux and oxygen, and prevent oxidation. The flux is discharged from the conveying pipe 21 through the outlet 24 and enters the next process stage (such as welding equipment). The inert gas supply component 4 continuously supplies inert gas during the conveying process, forming a protective atmosphere, reducing the contact between the flux and oxygen, preventing oxidation, and improving welding quality. For flux containing metal powder, it also prevents the flux from mixing with oxygen to form an explosive dust cloud, improving the safety of the flux during the conveying process. The design and material selection of the spiral 22 ensure that the flux is not damaged during the conveying process, reducing particle breakage and ensuring welding quality. The inert gas supply component 4 can be equipped with a gas flow sensor and controller to monitor and adjust the gas flow in real time, ensuring a stable conveying environment.

[0036] The support frame 1 serves as the basic structure of the entire conveying device, supporting and fixing other components. The conveying pipe 21 acts as the channel for flux delivery, ensuring the flux is smoothly conveyed from the inlet 23 to the outlet 24. The conveying pipe 21 is typically cylindrical or square with a smooth inner wall to reduce resistance during flux delivery. The pipe material is usually stainless steel or plastic, depending on the properties of the flux and the working environment. The inlet 23 and outlet 24 are located at opposite ends of the conveying pipe 21, used for flux entry and exit. The spiral 22 propels the flux forward by rotation, achieving material conveying. The spiral 22 is typically cylindrical with spiral blades on its surface. The blade pitch can be designed according to conveying requirements, with a larger pitch at the front end to accelerate feeding and a smaller pitch at the rear end to increase pressure and prevent blockage. It is usually made of stainless steel or carbon steel and coated with a durable, heat-resistant material. Abrasive materials (such as polytetrafluoroethylene) are used to extend service life; the drive component 3 provides power for the rotation of the auger 22. The drive component 3 typically includes a motor and a reducer. The motor drives the auger 22 to rotate through the reducer. The motor can be a variable frequency motor so that the speed can be adjusted according to the conveying requirements; the inert gas supply component 4 supplies inert gas (such as nitrogen, argon, helium, etc.) during the conveying process to form a protective atmosphere, reduce the contact between the flux and oxygen, and prevent oxidation. The inert gas supply component 4 is located between the conveying pipe 21 and the drive component 3 and is connected to the conveying pipe 21. The inert gas supply component 4 typically includes a gas inlet, a gas distributor, and a connecting pipe to ensure that the inert gas can enter the conveying pipe 21 evenly. The inert gas supply component 4 can also be equipped with a gas flow sensor and a controller to monitor and adjust the gas flow in real time to ensure the stability of the conveying environment.

[0037] Specifically, in one embodiment of this utility model, the inert gas supply component 4 includes an air compressor, a molecular sieve drying tower, and a mixing container. The output end of the air compressor is connected to the input end of the molecular sieve drying tower, the output end of the molecular sieve drying tower is connected to the input end of the mixing container, and the output end of the mixing container is connected to the conveying pipe 21. The air compressor provides high-pressure air to power subsequent gas processing. The output end of the air compressor is connected to the input end of the molecular sieve drying tower to ensure that the compressed air can smoothly enter the drying tower. The molecular sieve drying tower can remove moisture from the compressed air to ensure low humidity of the gas. The molecular sieve drying tower is filled with a high-efficiency desiccant (such as a molecular sieve) to remove moisture from the air through adsorption, so that the dew point of the output gas reaches below -40°C. The mixing container mixes the dried air with an inert gas (such as nitrogen) to form a low-oxygen, low-humidity protective gas. The input end of the mixing container is connected to the output end of the molecular sieve drying tower to ensure that the dried air can smoothly enter the mixing container. The mixing container is equipped with a stirring device or mixer to ensure that the air and the inert gas are fully mixed. An air compressor compresses outside air to form a high-pressure airflow, which is then sent into a molecular sieve drying tower. The desiccant in the molecular sieve drying tower adsorbs moisture in the air, bringing the dew point of the output gas to below -40°C, ensuring low humidity. The dried air then enters a mixing container and mixes with an inert gas (such as nitrogen) to form a low-oxygen, low-humidity protective gas. The mixed protective gas then enters the delivery pipeline 21 through a pipeline to form a protective atmosphere, preventing flux oxidation and moisture absorption.

[0038] Furthermore, in another embodiment of the present invention, the inert gas supply component 4 further includes a dew point sensor, an oxygen concentration sensor, and a controller. The dew point sensor and the oxygen concentration sensor are spaced apart at the output end of the mixing container, and the controller is electrically connected to the air compressor, the molecular sieve drying tower, the dew point sensor, and the oxygen concentration sensor. The dew point sensor and oxygen concentration sensor monitor the dew point temperature and oxygen content of the gas output from the mixing container in real time and feed the data back to the controller. Based on the sensor feedback, the controller automatically adjusts the speed of the air compressor, the operating status of the molecular sieve drying tower, and the gas flow rate of the mixing container to ensure that the dew point temperature and oxygen content of the supplied gas are within the set range. The mixed protective gas enters the delivery pipeline 21 through the pipeline to form a protective atmosphere and prevent flux oxidation and moisture absorption. The dew point sensor and oxygen concentration sensor can monitor the humidity and oxygen content of the gas in real time to ensure the stability and reliability of the supplied gas. The controller can automatically adjust the operating status of the equipment based on the sensor feedback to achieve precise control. By providing a low-oxygen, low-humidity protective gas, the contact between the flux and oxygen is significantly reduced, preventing oxidation and improving welding quality. The controller can monitor and adjust the gas mixing ratio in real time to ensure the stability and reliability of the delivery environment. When the dew point temperature or oxygen content of the gas exceeds the set range, the controller can issue an alarm to remind the operator to take measures to ensure the safe operation of the equipment.

[0039] Please see Figure 1 In one embodiment of this utility model, the flux conveying device 100 includes a conveying box 5, which is disposed on the support 1 and communicates with the inlet 23. The conveying box 5 serves as a temporary storage and feeding device for the flux, ensuring that the flux can enter the conveying pipe 21 stably and uniformly. It is usually a box structure with sufficient capacity to temporarily store the flux. The bottom or side of the conveying box 5 is provided with an opening 611 communicating with the inlet 23 of the conveying pipe 21 to ensure that the flux can enter the conveying pipe 21 smoothly. It is usually made of metal (such as stainless steel) or plastic, and the specific material depends on the properties of the flux and the working environment. A sealing device is provided at the connection between the conveying box 5 and the conveying pipe 21 to ensure airtightness during the conveying process and prevent dust leakage. The outlet 24 of the conveying box 5 can be equipped with a flow regulating device (such as a gate or screw feeder) to control the flux feeding speed and ensure the uniformity of the conveying process.

[0040] To ensure the purity of the flux, please refer to [link / reference needed]. Figure 2 and Figure 3In one embodiment of this utility model, the flux conveying device 100 includes a screening assembly 6, which includes a screening box 61 and a screen 62. The end of the conveying pipe 21 away from the driving member 3 is connected to the screening box 61. The spiral body 22 passes through the screening box 61 and is rotatably connected to the side wall of the screening box 61. The screen 62 is connected to the side wall of the screening box 61 and is located below the spiral body 22. The discharge port 24 is opened on one side wall of the screening box 61 and is located below the screen 62. The sieve box 61 serves as a screening and temporary storage device for the flux, ensuring that the flux is screened before entering the next process stage (such as welding equipment) to remove impurities and large particles. One end of the sieve box 61 is connected to the conveying pipe 21 to ensure that the flux can smoothly enter the sieve box 61 from the conveying pipe 21. A discharge port 24 is opened on one side wall of the sieve box 61, located below the screen 62, for discharging the screened flux. The screen 62 screens the flux to remove impurities and large particles, ensuring the purity of the flux. The screen 62 is installed inside the sieve box 61, located below the spiral body 22, to ensure that the flux is screened when passing through the screen 62. The aperture of the screen 62 can be selected according to the particle size of the flux to ensure the screening effect. The spiral body 22 passes through the sieve box. The sieve box 61 is rotatably connected to the side wall of the sieve box 61 to ensure that the spirograph 22 can rotate freely. Usually, a bearing is fitted at the end of the spirograph 22 to achieve rotatable connection between the end of the spirograph 22 and the side wall of the sieve box 61. The flux enters the sieve box 61 through the conveying pipe 21 and is first screened by the screen 62 to remove impurities and large particles. The flux is screened by the screen 62. The fine flux particles pass through the screen 62 and enter the lower part of the sieve box 61, while the larger particles and impurities are left above the screen 62. The screened flux is discharged through the outlet 24 on the side wall of the sieve box 61 and enters the next process stage (such as welding equipment). The sieve 62 removes impurities and large particles from the flux, ensuring the purity of the flux and improving the welding quality.

[0041] Further, please refer to Figure 5 and Figure 6In one embodiment of this utility model, the screening assembly 6 includes an electromagnetic vibrator 63, which is connected to the side wall of the screening box 61. The screen 62 is slidably connected to the side wall of the screening box 61, and the output end of the electromagnetic vibrator 63 is connected to the screen 62. The electromagnetic vibrator 63 enhances the screening effect of the screen 62 by generating high-frequency vibration, improving the screening efficiency and quality of the flux. The electromagnetic vibrator 63 is installed on the side wall of the screening box 61, and its output end is connected to the screen 62, ensuring that the vibration can be directly transmitted to the screen 62. The vibration frequency of the electromagnetic vibrator 63 can be adjusted according to the particle size of the flux and screening requirements, typically adjustable within the range of 10-50Hz. The slidable connection between the screen 62 and the screening box 61 ensures that the screen 62 can move freely during vibration, allowing it to move up and down along the side wall during vibration, thus improving the screening effect. The high-frequency vibration generated by the electromagnetic vibrator 63... Vibration can significantly improve the screening efficiency of screen 62, ensuring that impurities and large particles in the flux are effectively removed. Through vibration screening, the purity of the flux is further improved, reducing welding quality problems caused by impurities and large particles. The vibration frequency of electromagnetic vibrator 63 can be dynamically adjusted according to the particle size of the flux and screening requirements to ensure optimized screening effect. Specifically, the screen 62 is slidably connected to the side wall of the screening box 61. This can be achieved by setting sliders and slide rails on the side walls of screen 62 and screening box 61 respectively, or by setting sliding columns and sliding grooves on the side walls of screen 62 and screening box 61 respectively. This utility model does not limit this.

[0042] Specifically, please refer to Figure 3 and Figure 5In one embodiment of the present invention, the side wall of the screening box 61 is provided with a positioning post 64. The positioning post 64 includes a first positioning segment 641 and a second positioning segment 642 connected to each other. The cross-sectional dimension of the first positioning segment 641 is smaller than that of the second positioning segment 642. A connecting frame 65 is provided on one side of the screen 62. The connecting frame 65 is slidably sleeved on the first positioning segment 641 and limited between the second positioning segment 642 and the side wall of the screening box 61. The positioning post 64 is used to fix and position the screen 62, ensuring that the screen 62 remains stable during vibration and preventing it from shifting within the screen box 61. The first positioning section 641 has a smaller cross-sectional size and is used to slide with the connecting frame 65 of the screen 62. The second positioning section 642 has a larger cross-sectional size and is used to limit the sliding range of the connecting frame 65, preventing the connecting frame 65 from slipping off the positioning post 64. The connecting frame 65 is installed on one side of the screen 62 and is used to slide with the positioning post 64, ensuring that the screen 62 can move freely during vibration while remaining stable. The connecting frame 65 is slidably fitted onto the first positioning section 641 of the positioning post 64, allowing the screen 62 to move up and down along the positioning post 64 during vibration. The connecting frame 65 is confined between the second positioning section 642 and the side wall of the screen box 61, preventing the screen 62 from shifting or falling off during vibration.

[0043] Furthermore, please refer to Figure 3 In one embodiment, the screening assembly 6 includes a plurality of screens 62, which are spaced apart and connected to the side wall of the screening box 61. Multi-stage screening is performed using the multiple screens 62 to further improve the purity and screening efficiency of the flux. The multiple screens 62 are spaced apart within the screening box 61, and each screen 62 can have a different aperture to achieve multi-stage screening. Each screen 62 is connected to the side wall of the screening box 61 to ensure stability during vibration. Screens 62 with different apertures are designed according to the particle size of the flux to achieve a finer screening effect.

[0044] Please see Figures 4 to 6In one embodiment, the screening assembly 6 includes a guide ramp 66, and a waste outlet 67 is provided on one side wall of the screening box 61. The waste outlet 67 is opposite to the discharge outlet 24 and is located below the screen 62. The guide ramp 66 is connected to the edge of the waste outlet 67 and the side wall of the screening box 61. The guide ramp 66 guides the screened waste to be discharged from the waste outlet 67, ensuring that the waste can be smoothly discharged from the screening box 61 and avoiding accumulation. The guide ramp 66 is usually a sloping structure, and its inclination angle can be designed according to the waste discharge requirements. The guide ramp 66 is usually made of metal (such as stainless steel) or high-strength plastic, and has good wear resistance and stability. The flux enters the screening box 61 through the conveying pipe 21, and first passes through the first-stage screen 62 to remove larger impurities and particles. The flux then passes through multiple screens 62 in sequence, each stage... Screen 62 further filters out finer particles to ensure the purity of the flux. The filtered flux passes through screen 62 and enters the lower part of the sieve box 61, while larger particles and impurities are left above screen 62. The filtered waste slides along guide plate 66 under the action of gravity and is discharged from sieve box 61 from waste port 67. The design of guide plate 66 ensures that the waste can be discharged smoothly and avoids accumulation in sieve box 61. The filtered flux is discharged through discharge port 24 on the side wall of sieve box 61 and enters the next process stage (such as welding equipment).

[0045] Please see Figure 3 and Figure 6 In one embodiment of the present invention, the screening assembly 6 includes a discharge plate 68 and an electromagnetic vibrator 63. The discharge plate 68 is connected to the edge of the discharge port 24 and the side wall of the screening box 61, and is located below the screen 62. The discharge plate 68 is inclined toward the discharge port 24. The electromagnetic vibrator 63 is disposed on the bottom wall of the screening box 61, and the output end of the electromagnetic vibrator 63 is connected to the discharge plate 68. The discharge plate 68 guides the screened flux to be discharged smoothly from the discharge port 24, ensuring uniform flow of the flux and avoiding blockage. The discharge plate 68 is installed inside the sieve box 61, connected to the edge of the discharge port 24 and the side wall of the sieve box 61, located below the screen 62, and the discharge plate 68 is inclined towards the discharge port 24 to form an inclined surface, which helps the flux to be discharged smoothly under the action of gravity. The electromagnetic vibrator 63 is installed on the bottom wall of the sieve box 61, and its output end is connected to the discharge plate 68. The electromagnetic vibrator 63 generates high-frequency vibration, which is transmitted to the discharge plate 68 through the output end, causing the discharge plate 68 to vibrate, ensuring that the flux can be discharged smoothly and evenly, avoiding blockage and accumulation.

[0046] Please see Figure 3 and Figure 6In one embodiment of this utility model, the screening assembly 6 includes a pull plate 69, the screening box 61 has an opening 611, and the opposite side walls of the screening box 61 have strip grooves 612. The pull plate 69 passes through the two strip grooves 612 to cover the opening 611 of the screening box 61. The top of the screening box 61 has an opening 611, which facilitates the observation of the internal working status of the screening box 61 by the operator. The strip grooves 612 on the opposite side walls of the screening box 61 guide the sliding of the pull plate 69. The pull plate 69 is inserted into the screening box 61 through the strip grooves 612 to cover or open the opening 611 of the screening box 61. Through the design of the pull plate 69 and the strip grooves 612, the opening 611 of the screening box 61 can be flexibly controlled, which facilitates cleaning and replacement of the screen 62, and improves screening efficiency and quality.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A flux delivery device, characterized in that, include: support; A conveying assembly, comprising a conveying pipe and a spiral, wherein the conveying pipe is disposed on the support, and the spiral is rotatably disposed within the conveying pipe, and an inlet and an outlet are respectively formed at both ends of the conveying pipe; A driving component, wherein the driving component is disposed on the bracket, and the output shaft of the driving component is connected to the helical body; and An inert gas supply unit is provided between the delivery pipe and the drive unit, and is connected to the delivery pipe.

2. The flux delivery device as described in claim 1, characterized in that, The inert gas supply unit includes an air compressor, a molecular sieve drying tower, and a mixing container. The output end of the air compressor is connected to the input end of the molecular sieve drying tower, the output end of the molecular sieve drying tower is connected to the input end of the mixing container, and the output end of the mixing container is connected to the delivery pipeline.

3. The flux delivery device as described in claim 2, characterized in that, The inert gas supply unit also includes a dew point sensor, an oxygen concentration sensor, and a controller. The dew point sensor and the oxygen concentration sensor are spaced apart at the output end of the mixing container. The controller is electrically connected to the air compressor, the molecular sieve drying tower, the dew point sensor, and the oxygen concentration sensor.

4. The flux delivery device according to any one of claims 1 to 3, characterized in that, The flux delivery device includes a material delivery box, which is located on the support and communicates with the inlet.

5. The flux delivery device according to any one of claims 1 to 3, characterized in that, The flux conveying device includes a screening assembly, which includes a screening box and a screen. The end of the conveying pipe away from the drive unit is connected to the screening box. The spiral body passes through the screening box and is rotatably connected to the side wall of the screening box. The screen is connected to the side wall of the screening box and is located below the spiral body. The discharge port is opened on one side wall of the screening box and is located below the screen.

6. The flux delivery device as described in claim 5, characterized in that, The screening assembly includes an electromagnetic vibrator connected to the side wall of the screening box, the screen being slidably connected to the side wall of the screening box, and the output end of the electromagnetic vibrator being connected to the screen.

7. The flux delivery device as described in claim 6, characterized in that, The side wall of the screening box is provided with a positioning post. The positioning post includes a first positioning section and a second positioning section connected to each other. The cross-sectional dimension of the first positioning section is smaller than that of the second positioning section. A connecting frame is provided on one side of the screen. The connecting frame is slidably sleeved on the first positioning section and limited between the second positioning section and the side wall of the screening box.

8. The flux delivery device as described in claim 5, characterized in that, The screening assembly includes a plurality of screens, which are spaced apart and connected to the side wall of the screening box; and / or The screening assembly includes a guide inclined plate, and a waste outlet is provided on one side wall of the screening box. The waste outlet is arranged opposite to the discharge outlet and is located below the screen. The guide inclined plate is connected to the edge of the waste outlet and the side wall of the screening box.

9. The flux delivery device as described in claim 5, characterized in that, The screening assembly includes a discharge plate and an electromagnetic vibrator. The discharge plate is connected to the edge of the discharge port and the side wall of the screening box, and is located below the screen. The discharge plate is inclined toward the discharge port. The electromagnetic vibrator is located on the bottom wall of the screening box, and the output end of the electromagnetic vibrator is connected to the discharge plate.

10. The flux delivery device as described in claim 5, characterized in that, The screening assembly includes a drawer plate, the screening box has an opening, and the two opposite side walls of the screening box have strip grooves. The drawer plate passes through the two strip grooves to cover the opening of the screening box.

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