Powder mixing device for laser processing

Abstract

The utility model belongs to the technical field of powder mixing devices, and particularly relates to a laser processing powder mixing device which comprises a feeding hopper, sliding grooves are formed in the bottom end of the feeding hopper, a sliding plate is installed between the sliding grooves in a sliding mode, discharging openings are formed in the two ends of the sliding plate, a supporting rod is installed at the edge of the sliding plate, and a rotating shaft is installed at the output end of a driving motor. A cam is installed on the outer wall of the rotating shaft, an L-shaped plate is fixed to the top end of the mixing barrel, a sliding rod is slidably installed in the L-shaped plate, and a compression spring is fixedly connected between the sliding plate and the L-shaped plate; the driving motor is started to drive the rotating shaft and the cam to rotate, when the cam makes contact with the supporting rod, the supporting rod and the sliding plate slide in the sliding groove, the compression spring is compressed, one discharging opening is aligned to the feeding hopper, when the cam is away from the supporting rod, the compression spring is released, the other discharging opening is aligned to the feeding hopper, intermittent staggered feeding is achieved, and the feeding efficiency is improved. And powder accumulation can be avoided, blockage of the powder in the mixing process can be prevented, and uniform mixing of the powder is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of powder mixing devices, in particular to a laser processed powder mixing device. Background Art

[0002] Laser processing is a process that uses the characteristics of the interaction between laser beams and matter to cut, weld, and surface treat materials. During the laser welding process, powder can be accurately projected into the work area as welding material. When using it, different types of powders need to be mixed to achieve a specific effect, so a powder mixing device is used.

[0003] A Chinese patent with announcement number CN115738862A discloses a high-efficiency powder mixing device, including a mixing box, two stirring bins are symmetrically provided at the upper end of the mixing box, the stirring bins are respectively connected to feeding pipes, the stirring bins are all provided with the stirring device, and a mixing bin is provided at the lower end of the mixing box, the mixing bin is connected to the two stirring tanks, and the mixing device is arranged in the mixing bin; the present invention drives two rotating rods to rotate in the stirring bins respectively through a first motor, and transports the bottom powder to the upper end through spiral blades, and stirs the required mixed raw materials in advance, and some agglomerated large-particle powders can be stirred and crushed, so that the subsequent mixing effect is better and the mixing efficiency is improved.

[0004] However, the above-mentioned powder mixing device still has some problems. In practical applications, a large amount of powder is usually poured into the mixing barrel at one time, which will cause some powder to accumulate and be difficult to fully mix with other powders, thus affecting the mixing effect. Therefore, a laser-processed powder mixing device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes a powder mixing device for laser processing.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: a laser-processed powder mixing device described in the utility model comprises a mixing barrel, two feeding hoppers are connected to the top side of the mixing barrel, and the bottom ends of the feeding hoppers are provided with slide grooves, and slide plates are slidably installed between the slide grooves. Both ends of the slide plates are provided with feeding ports, and the feeding ports are respectively located inside the feeding hoppers. A support rod is fixedly installed at the edge of the middle end of the slide plate, a driving motor is installed on the top side of the mixing barrel, a rotating shaft is installed on the output end of the driving motor, and a cam is installed on the outer wall of the rotating shaft, and the cam will contact the support rod when operating, an L-shaped plate is fixed to the outer wall of the top end of the mixing barrel, and a sliding rod is slidably installed inside the L-shaped plate, one end of the sliding rod is fixed to one side of the sliding rod, and a compression spring is fixedly connected between the sliding rod and the L-shaped plate, and the compression spring is sleeved on the outer wall of the sliding rod to realize intermittent staggered feeding, which can avoid the accumulation of powder, prevent the powder from being blocked during the mixing process, improve the mixing efficiency, and ensure the uniform mixing of the powder.

[0007] Preferably, a stirring motor is installed on the bottom side of the mixing barrel, and a rotating shaft is installed on the output end of the stirring motor. One end of the rotating shaft extends through and extends to the upper end of the mixing barrel, and three groups of three stirring blades are equidistantly installed on the outer wall of the bottom end of the rotating shaft. A scraper is fixedly connected to one side of the stirring blade, and one side of the scraper is arranged to fit the inner wall of the mixing barrel, so as to evenly stir the powder in the mixing barrel and scrape it down along the barrel wall, thereby avoiding accumulation of powder on the barrel wall and ensuring the uniformity of mixing.

[0008] Preferably, a filter cartridge is fixed to the inner wall of the top side of the mixing barrel, two connecting rods are symmetrically installed on the outer wall of the top end of the rotating shaft, a crushing roller is fixed at one end of the connecting rod, and two brushes are symmetrically installed on the outer wall of the top end of the rotating shaft. The brushes and the crushing rollers are staggered and both are in contact with the inner wall of the bottom side of the filter cartridge to screen the powder before mixing. The crushing roller is used to crush and disperse the agglomerated powder. The brush helps to bring the screened powder into the bottom end of the mixing barrel for stirring.

[0009] Preferably, a discharge pipe is connected to the bottom side of the mixing barrel, and a one-way valve is installed inside the discharge pipe to control the outflow of powder.

[0010] Preferably, three supporting legs are equidistantly mounted on the outer wall of the mixing barrel, and a perspective window is provided on the outer wall of the mixing barrel. The supporting legs provide stable support, and the perspective window can be used to observe the mixing conditions inside the mixing barrel.

[0011] Preferably, a control panel is mounted on the outer wall of the mixing barrel, and the control panel is used to control the operation of the electrical components inside the mixing device, so as to facilitate the control of the electrical components inside the device and make the entire operation process more convenient and efficient.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model starts the driving motor to drive the rotating shaft and the cam to rotate. When the cam protrusion contacts the support rod, the support rod and the slide plate are pushed to slide in the slide groove, and the compression spring is compressed. One of the feed ports is aligned with the feed hopper. When the cam protrusion is away from the support rod, the force of the compression spring is released, so that the feed port at the other end is aligned with the feed hopper, and intermittent staggered feeding is realized, which can avoid the accumulation of powder, prevent the powder from being blocked during the mixing process, improve the mixing efficiency, and ensure the uniform mixing of the powder;

[0014] 2. After the powder of the utility model passes through the mixing barrel, it will enter the interior of the filter cartridge. The filter cartridge plays a screening role. The stirring motor drives the rotating shaft to rotate. The connecting rod on the rotating shaft drives the crushing roller and the brush to rotate. The crushing roller crushes the agglomerated powder particles, and the brush removes the compacted residual powder in the filter cartridge, thereby improving the effect of powder crushing and ensuring the uniformity and quality of the mixed powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

[0017] Figure 2 It is a schematic diagram of the structure of the indirect feeding component;

[0018] Figure 3 for Figure 2 The enlarged structural diagram of part A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the mixing barrel;

[0020] Figure 5 Schematic diagram of the stirring assembly structure.

[0021] In the figure: 1. Support leg; 2. Mixing barrel; 3. Feed hopper; 4. Chute; 5. Slide plate; 6. Discharge port; 7. Support rod; 8. Drive motor; 9. Rotating shaft; 10. Cam; 11. L-shaped plate; 12. Slide rod; 13. Compression spring; 14. Stirring motor; 15. Rotating shaft; 16. Stirring blade; 17. Scraper; 18. Filter cartridge; 19. Connecting rod; 20. Crushing roller; 21. Brush; 22. Discharge pipe; 23. One-way valve; 24. See-through window; 25. Control panel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3As shown, a powder mixing device for laser processing comprises a mixing barrel 2, two feeding hoppers 3 are connected to the top side of the mixing barrel 2, a slide groove 4 is provided inside the bottom end of each of the feeding hoppers 3, a slide plate 5 is slidably installed between the slide grooves 4, a feed opening 6 is provided at both ends of the slide plate 5, and the feed opening 6 is respectively located inside the feeding hopper 3, a support rod 7 is fixedly installed at the middle edge of the slide plate 5, a driving motor 8 is installed on the top side of the mixing barrel 2, a rotating shaft 9 is installed at the output end of the driving motor 8, a cam 10 is installed on the outer wall of the rotating shaft 9, and the cam 10 will contact the support rod 7 when operating, an L-shaped plate 11 is fixed to the outer wall of the top end of the mixing barrel 2, a sliding rod 12 is slidably installed inside the L-shaped plate 11, one end of the sliding rod 12 is fixed to one side of the slide plate 5, a compression spring 13 is fixedly connected between the slide plate 5 and the L-shaped plate 11, and the compression spring 13 is sleeved on the outer wall of the sliding rod 12, and a compression spring 13 is fixedly installed on the outer wall of the mixing barrel 2 It is equipped with a control panel 25; when working, in actual application, a large amount of powder is usually poured into the interior of the mixing barrel 2 at one time, which will cause some powder to accumulate and make it difficult to fully mix with other powders, thereby affecting the mixing effect. The driving motor 8 is started, and the rotating shaft 9 and the cam 10 driven by its output end begin to rotate. When the raised part of the cam 10 contacts the support rod 7, it will push the support rod 7 and the slide plate 5 to slide in the slide groove 4. During the sliding of the slide plate 5, the slide bar 12 slides inside the L-shaped plate 11. At this time, the compression spring 13 is compressed, and one of the discharge ports 6 will be aligned with the feed hopper 3. When the raised part of the cam 10 is away from the support rod 7, the force of the compression spring 13 is released, providing a certain reset force for the sliding of the slide plate 5, so that the discharge port 6 at the other end is aligned with the feed hopper 3, and the powder enters the mixing barrel 2 through the discharge port 6, realizing intermittent staggered feeding, which can avoid the accumulation of powder, prevent the powder from being blocked during the mixing process, improve the mixing efficiency, and ensure the uniform mixing of the powder.

[0024] See also Figure 3-4 As shown, a stirring motor 14 is installed at the bottom side of the mixing barrel 2, and a rotating shaft 15 is installed at the output end of the stirring motor 14. One end of the rotating shaft 15 extends through the upper end of the mixing barrel 2, and three groups of three stirring blades 16 are equidistantly installed on the outer wall of the bottom end of the rotating shaft 15. A scraper 17 is fixedly connected to one side of the stirring blade 16, and one side of the scraper 17 is arranged in contact with the inner wall of the mixing barrel 2.

[0025] A filter cartridge 18 is fixed to the inner wall of the top side of the mixing barrel 2, two connecting rods 19 are symmetrically installed on the outer wall of the top end of the rotating shaft 15, a crushing roller 20 is fixed to one end of the connecting rod 19, and two brushes 21 are symmetrically installed on the outer wall of the top end of the rotating shaft 15, and the brushes 21 and the crushing rollers 20 are staggered and both contact the inner wall of the bottom side of the filter cartridge 18;

[0026] The bottom side of the mixing barrel 2 is connected to a discharge pipe 22, and a one-way valve 23 is installed inside the discharge pipe 22;

[0027] The outer wall of the mixing barrel 2 is equidistantly provided with three supporting legs 1, and a perspective window 24 is provided on the outer wall of the mixing barrel 2; during operation, during the laser welding process, the powder can be accurately projected onto the working area as a welding material. When in use, different types of powders need to be mixed to achieve a specific effect, so a powder mixing device is used. During the mixing process, the operator can observe the mixing condition inside the mixing barrel 2 through the perspective window 24. After the powder enters the mixing barrel 2, it enters the interior of the filter cartridge 18, and the filter cartridge 18 plays a screening role. The rotating shaft 15 is driven to rotate by the stirring motor 14, and the connecting rod 19 on the rotating shaft 15 is connected to the rotating shaft 15. The crushing roller 20 and the brush 21 are driven to rotate. The crushing roller 20 crushes the agglomerated powder particles, and the brush 21 removes the residual powder compacted in the filter cartridge 18, thereby improving the effect of powder crushing and ensuring the uniformity and quality of the mixed powder. At the same time, the stirring blade 16 and the scraper 17 on the rotating shaft 15 rotate accordingly. The stirring blade 16 fully stirs the powder to make it mixed evenly, and the scraper 17 is close to the inner wall of the mixing barrel 2 to ensure that the powder will not adhere to the barrel wall, thereby further improving the mixing effect. After the mixing is completed, the one-way valve 23 is controlled to open through the control panel 25, and the mixed powder is discharged through the discharge pipe 22 for subsequent laser processing.

[0028] Working principle: when feeding, start the driving motor 8, and the rotating shaft 9 and cam 10 driven by its output end start to rotate. When the raised part of the cam 10 contacts the support rod 7, it will push the support rod 7 and the slide plate 5 to slide in the slide groove 4. During the sliding of the slide plate 5, the slide bar 12 slides inside the L-shaped plate 11. At this time, the compression spring 13 is compressed, and one of the discharge ports 6 will be aligned with the feed hopper 3. When the raised part of the cam 10 is away from the support rod 7, the force of the compression spring 13 is released, providing a certain reset force for the sliding of the slide plate 5, so that the discharge port 6 at the other end is aligned with the feed hopper 3, and the powder enters the mixing barrel 2 through the discharge port 6, realizing intermittent staggered feeding, which can avoid the accumulation of powder, prevent the powder from being blocked during the mixing process, improve the mixing efficiency, and ensure the uniform mixing of the powder.

[0029] During the mixing process, the operator can observe the mixing situation inside the mixing barrel 2 through the perspective window 24. After the powder enters the mixing barrel 2, it will enter the interior of the filter cartridge 18. The filter cartridge 18 plays a screening role. The rotating shaft 15 is driven to rotate by the stirring motor 14, and the connecting rod 19 on the rotating shaft 15 drives the crushing roller 20 and the brush 21 to rotate. The crushing roller 20 crushes the agglomerated powder particles, and the brush 21 removes the compacted residual powder in the filter cartridge 18, thereby improving the effect of crushing the powder and ensuring the uniformity and quality of the mixed powder. At the same time, the stirring blade 16 and the scraper 17 on the rotating shaft 15 rotate accordingly. The stirring blade 16 fully stirs the powder to make it mixed evenly, and the scraper 17 is close to the inner wall of the mixing barrel 2 to ensure that the powder will not adhere to the barrel wall, thereby further improving the mixing effect. After the mixing is completed, the one-way valve 23 is controlled to open by the control panel 25, and the mixed powder is discharged through the discharge pipe 22 for subsequent laser processing.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. 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 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.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A powder mixing device for laser processing, characterized in that: The invention comprises a mixing barrel (2), wherein two feeding hoppers (3) are connected to the top side of the mixing barrel (2), and the bottom ends of the feeding hoppers (3) are provided with slide grooves (4), and slide plates (5) are installed between the slide grooves (4) for sliding, and both ends of the slide plates (5) are provided with discharge ports (6), and the discharge ports (6) are respectively located inside the feeding hoppers (3), and a support rod (7) is fixedly installed at the middle edge of the slide plates (5). A driving motor (8) is installed on the top side of the mixing barrel (2), and the output end of the driving motor (8) is connected to the mixing barrel (2). A rotating shaft (9) is installed, and a cam (10) is installed on the outer wall of the rotating shaft (9). The cam (10) will contact the support rod (7) when operating. An L-shaped plate (11) is fixed to the outer wall of the top end of the mixing barrel (2). A sliding rod (12) is installed inside the L-shaped plate (11) and slides through it. One end of the sliding rod (12) is fixed to one side of the slide plate (5). A compression spring (13) is fixed between the slide plate (5) and the L-shaped plate (11). The compression spring (13) is sleeved on the outer wall of the sliding rod (12).

2. A powder mixing device for laser processing according to claim 1, characterized in that: A stirring motor (14) is installed on the bottom side of the mixing barrel (2), and a rotating shaft (15) is installed on the output end of the stirring motor (14). One end of the rotating shaft (15) extends through the upper end of the mixing barrel (2). Three groups of three stirring blades (16) are evenly installed on the outer wall of the bottom end of the rotating shaft (15). A scraper (17) is fixedly connected to one side of the stirring blade (16), and one side of the scraper (17) is arranged to fit the inner wall of the mixing barrel (2).

3. A powder mixing device for laser processing according to claim 2, characterized in that: A filter cartridge (18) is fixed to the inner wall of the top side of the mixing barrel (2); two connecting rods (19) are symmetrically mounted on the outer wall of the top end of the rotating shaft (15); a crushing roller (20) is fixed to one end of the connecting rod (19); two brushes (21) are symmetrically mounted on the outer wall of the top end of the rotating shaft (15); the brushes (21) and the crushing rollers (20) are arranged alternately and are in contact with the inner wall of the bottom side of the filter cartridge (18).

4. A powder mixing device for laser processing according to claim 3, characterized in that: The bottom side of the mixing barrel (2) is connected to a discharge pipe (22), and a one-way valve (23) is installed inside the discharge pipe (22).

5. A powder mixing device for laser processing according to claim 4, characterized in that: Three supporting legs (1) are equidistantly mounted on the outer wall of the mixing barrel (2), and a perspective window (24) is provided on the outer wall of the mixing barrel (2).

6. A powder mixing device for laser processing according to claim 5, characterized in that: A control panel (25) is mounted on the outer wall of the mixing barrel (2), and the control panel (25) is used to control the operation of electrical components inside the mixing device.

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