Drying device for metal 3D printing supplies

The motor-driven stirring blade adjustment system solves the problem of inflexible stirring in existing devices, achieving uniform drying of metal 3D printing consumables and increasing the durability of the device.

CN223976363UActive Publication Date: 2026-03-06SHANDONG HANGYU ADDITIVE MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520589834.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-06
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

Existing metal 3D printing filament drying devices are difficult to adjust flexibly according to actual conditions such as the type of filament, humidity, and temperature during the stirring process, resulting in uneven drying or over-stirring, which affects efficiency and device lifespan.

Method used

It adopts a linkage mechanism of motor, pulley, belt and top ring, and adjusts the angle and intensity of the stirring blade by electric push rod. Combined with limit component and sleeve structure, it realizes flexible adjustment of stirring blade to adapt to different types and humidity of consumables.

Benefits of technology

It improves drying accuracy and efficiency, reduces the flying and clumping of consumables, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal 3D printing consumables drying device which comprises a fixing frame, a drying tank is arranged on the fixing frame, a feeding port and a hot air inlet are formed in the drying tank, a discharging port is formed in the bottom end of the drying tank, an electronic valve is arranged on the discharging port, a fixing ring is fixedly installed at the top end of the drying tank, and the fixing ring is fixedly connected with the drying tank. According to the scheme, efficient transmission of power and stable rotation of the top ring are achieved through a linkage mechanism of the motor, the grooved wheel, the belt and the top ring, an operator can flexibly adjust the angle of the stirring blades by adjusting the electric push rod, the stirring blades can rotate stably, and the stirring efficiency is improved. And therefore, the drying device is suitable for consumables of different types and humidity, and the drying precision and efficiency are improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of metal 3D printing consumables dryers, specifically to a metal 3D printing consumables drying device. Background Technology

[0002] In the field of metal 3D printing technology, the quality of consumables directly affects the accuracy and performance of printed parts. Metal 3D printing consumables are usually in powder form, and these powders need to be kept at a certain degree of dryness before storage and use to avoid printing defects caused by the presence of moisture or other volatile substances. Therefore, the drying process of metal 3D printing consumables has become an important step.

[0003] Currently available metal 3D printing filament drying devices generally use drying tanks as the main drying container, placing powdered filaments inside for heating and drying. However, during the drying process, to ensure uniform drying of the filaments, they usually need to be stirred to increase the contact area between the powder and the hot air, thereby improving drying efficiency.

[0004] However, existing drying equipment has some problems with agitation. Specifically, the agitator speed and intensity are often fixed during rotation, making it difficult to adjust flexibly according to actual conditions such as the type of consumables, humidity, and temperature inside the drying chamber. This fixed agitation method may lead to two problems: first, insufficient agitation, preventing some consumable powder from fully contacting the hot air, resulting in uneven drying; second, over-agitation, which may cause excessive dust and agglomeration of consumable powder, affecting not only the drying effect but also potentially causing wear and contamination to the drying equipment.

[0005] Therefore, based on this, a design or technical improvement is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned shortcomings and provide a drying device for metal 3D printing consumables.

[0007] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a metal 3D printing consumable drying device, including a fixed frame, a drying tank is arranged on the fixed frame, the drying tank is provided with a feed inlet and a hot air inlet, and a discharge port is provided at the bottom of the drying tank. An electronic valve is provided on the discharge port. A fixing ring is fixedly installed at the top of the drying tank, and a bearing ring is fixedly installed on the inner wall of the fixing ring. An outer ring is provided on the bearing ring, and a top ring is fixedly connected to the top of the outer ring. A connecting plate is fixedly installed at the top of the top ring. The top of the connecting plate is provided with a top cover, and an electric push rod is fixedly installed on the top of the top cover. A connecting plate is fixedly installed on the top of the electric push rod. Multiple sets of long rods are fixedly installed on the bottom of the connecting plate. The multiple sets of long rods penetrate the outer surface of the top cover, and the bottom ends of the multiple sets of long rods are fixedly connected to long plates. Multiple sets of fixing plates are hinged to the outer surface of the long plates, and one end of the fixing plates is connected to a stirring blade. A limit component is provided at the bottom of the top cover for the stable adjustment of the multiple sets of stirring blades. A drive component is provided on the fixing frame for controlling the rotational movement of the top ring.

[0008] Furthermore, the limiting component includes a fixed shaft fixedly installed at the bottom end of the top cover, and multiple sets of sleeves are fixedly installed on the outer surface of the fixed shaft, with rotating rods rotatably arranged on the inner walls of the multiple sets of sleeves.

[0009] Furthermore, the top ring is fixedly mounted with a second toothed ring, and the drive assembly also includes a first toothed ring disposed on the motor output shaft. The first toothed ring and the second toothed ring are used to sleeve the chain.

[0010] Furthermore, the top ring is fixedly mounted with a second toothed ring, and the drive assembly also includes a motor mounted on the support base, and the output shaft of the motor is fixedly mounted with a first toothed ring. The first toothed ring and the second toothed ring are used to sleeve the chain.

[0011] Furthermore, the inner wall of the bearing ring has multiple sets of slots.

[0012] Furthermore, multiple sets of locking blocks are fixedly installed on the outer surface of the outer ring, and these multiple sets of locking blocks are fixedly installed in the inner wall of the locking groove.

[0013] Furthermore, the connecting plate and the top cover are fixedly connected by multiple sets of bolts and multiple sets of nuts.

[0014] Furthermore, two sets of handles are fixedly installed on the top outer surface of the top cover.

[0015] Furthermore, the outer surface of the top cover is provided with multiple sets of limiting tubes, and long rods are slidably installed on the inner walls of the multiple sets of limiting tubes.

[0016] Compared with existing technologies, the advantages of this solution are: through the linkage mechanism of motor, pulley, belt and top ring, this solution achieves efficient power transmission and stable rotation of the top ring. By adjusting the electric push rod, the operator can flexibly adjust the angle of the stirring blade to adapt to different types and humidity of consumables, thereby improving the accuracy and efficiency of drying. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a first perspective view of the present invention;

[0019] Figure 2 This is a second perspective view of the present invention;

[0020] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the stirring structure of this utility model;

[0022] Figure 5 This utility model Figure 3 Enlarged view of point A in the middle;

[0023] Figure 6 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0024] In the diagram: 1. Fixed frame; 2. Drying tank; 3. Support base; 4. Motor; 5. Grooved wheel; 6. Belt; 7. Top cover; 8. Handle; 9. Long rod; 111. Feed inlet; 112. Discharge outlet; 113. Electronic valve; 114. Hot air inlet; 211. Connecting plate; 311. Electric push rod; 411. First toothed ring; 412. Second toothed ring; 511. Fixed ring; 512. Bearing ring; 513. Slot; 514. Locking block; 515. External connecting ring; 516. Top ring; 517. Connecting plate; 611. Fixed shaft; 612. Stirring blade; 613. Sleeve; 614. Rotating rod; 615. Long plate; 616. Fixed plate; 711. Bolt; 712. Nut; 811. Limiting tube. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1-6 The device shown is a drying apparatus for metal 3D printing consumables, including a fixed frame 1, a drying tank 2 mounted on the fixed frame 1, a feed inlet 111 and a hot air inlet 114 on the drying tank 2, and a discharge outlet 112 at the bottom of the drying tank 2. An electronic valve 113 is mounted on the discharge outlet 112. A fixing ring 511 is fixedly installed at the top of the drying tank 2, and a bearing ring 512 is fixedly installed on the inner wall of the fixing ring 511. An outer ring 515 is mounted on the bearing ring 512, and a top ring 516 is fixedly connected to the top of the outer ring 515. A connecting plate 517 is fixedly installed at the top of the top ring 516, and the top of the connecting plate 517... The top cover 7 is provided, and an electric push rod 311 is fixedly installed at the top of the top cover 7. A connecting plate 211 is fixedly installed at the top of the electric push rod 311, and multiple sets of long rods 9 are fixedly installed at the bottom of the connecting plate 211. The multiple sets of long rods 9 penetrate the outer surface of the top cover 7, and a long plate 615 is fixedly connected to the bottom of the multiple sets of long rods 9. Multiple sets of fixing plates 616 are hinged to the outer surface of the long plate 615, and a stirring blade 612 is connected to one end of the fixing plate 616. The electric push rod 311 pushes the long plate 615 to move up and down through the connecting plate 211 and the multiple sets of long rods 9, thereby causing the fixing plate 616 and the stirring blade 612 to swing. This design not only realizes the flexible adjustment of the stirring blade 612, but also improves the stirring effect and drying efficiency. A limit component is provided at the bottom of the top cover 7 for the stable adjustment of the multiple sets of stirring blades 612. A drive component is provided on the fixing frame 1 to control the rotation of the top ring 516.

[0027] In one embodiment, the limiting component includes a fixed shaft 611 fixedly installed at the bottom of the top cover 7. Multiple sets of sleeves 613 are fixedly installed on the outer surface of the fixed shaft 611, and rotating rods 614 are rotatably provided on the inner walls of the multiple sets of sleeves 613. The fixed shaft 611 serves as the rotation center of the stirring blade 612, while the sleeves 613 and rotating rods 614 provide support and stability during the rotation process, ensuring that the stirring blade 612 will not deviate from the predetermined trajectory when swinging.

[0028] In one embodiment, a support base 3 is provided on the fixed frame 1, and the driving component includes a motor 4 provided on the support base 3. The output shaft of the motor 4 is fixedly connected to a grooved wheel 5. A belt 6 is sleeved on the grooved wheel 5 and the top ring 516. Power is transmitted to the top ring 516 through the grooved wheel 5 and the belt 6 to realize the rotational movement of the stirring blade 612.

[0029] In one embodiment, the top ring 516 is fixedly mounted with a second toothed ring 412, and the drive assembly also includes a first toothed ring 411 disposed on the output shaft of the motor 4. The first toothed ring 411 and the second toothed ring 412 are used to sleeve the chain, and through another chain drive transmission method, the user can flexibly choose the transmission method according to actual needs or working environment, thereby improving the applicability and flexibility of the device.

[0030] In one embodiment, the inner wall of the bearing ring 512 is provided with multiple sets of slots 513, and the outer surface of the outer ring 515 is fixedly installed with multiple sets of blocks 514, and the multiple sets of blocks 514 are fixedly installed in the inner wall of the slots 513, thereby realizing a stable connection between the two.

[0031] In one embodiment, the connecting plate 517 and the top cover 7 are fixedly connected by multiple sets of bolts 711 and multiple sets of nuts 712. The connection method is simple, reliable, and easy to disassemble and maintain.

[0032] In one embodiment, two sets of handles 8 are fixedly installed on the top outer surface of the top cover 7, providing a convenient way to carry the top cover 7.

[0033] In one embodiment, the outer surface of the top cover 7 is provided with multiple sets of limiting tubes 811, and the inner wall of the multiple sets of limiting tubes 811 is slidably installed with long rods 9, and each set of limiting tubes 811 realizes stable guidance of the long rods 9 on the top cover 7.

[0034] The specific workflow of this plan is as follows:

[0035] First, the operator connects the heat source to the drying tank 2 through the hot air inlet 114 to provide the necessary heat for the drying process. At the same time, metal 3D printing consumable powder is added to the drying tank 2 through the feed inlet 111.

[0036] Next, start motor 4. The output shaft of motor 4 begins to rotate, driving pulley 5 to rotate as well. Pulley 5 is connected to top ring 516 via belt 6, so the rotation of belt 6 will drive top ring 516 to rotate as well. The rotation of top ring 516 is transmitted to bearing ring 512 through outer ring 515. Since bearing ring 512 is fixedly installed on the inner wall of fixed ring 511, outer ring 515 and its connected parts will rotate stably under the support of bearing ring 512.

[0037] As the top ring 516 rotates, the fixed shaft 611, which is fixedly installed at the bottom of the top cover 7, also begins to rotate. At this time, in order to adjust the angle of the stirring blade 612, the operator drives the electric push rod 311. The telescopic movement of the electric push rod 311 causes the connecting plate 211 to move up and down. The connecting plate 211 is connected to the long plate 615 through multiple sets of long rods 9, so the long rods 9 move with the up and down movement of the connecting plate 211. The pushing of the long rods 9 causes the long plate 615 to tilt, which in turn causes the fixed plate 616 and the stirring blade 612 to swing. The swing angle and intensity of the stirring blade 612 can be adjusted by the telescopic length of the electric push rod 311 to accommodate different types and humidity levels of consumables.

[0038] During the stirring process, the rotation of the rotating rod 614 within the sleeve 613 increases the stability of the stirring blade 612's movement. At the same time, the limiting tube 811's restriction on the sliding of the long rod 9 ensures the stability and accuracy of the stirring blade 612 during the oscillation process.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A metal 3D printing consumable drying device, comprising a fixing frame (1), characterized in that: a drying tank (2) is arranged on the fixing frame (1), the drying tank (2) is provided with an inlet (111) and a hot air inlet (114), and the bottom end of the drying tank (2) is provided with an outlet (112), the outlet (112) is provided with an electronic valve (113), the top end of the drying tank (2) is fixedly installed with a fixing ring (511), and the inner wall of the fixing ring (511) is fixedly installed with a bearing ring (512), the bearing ring (512) is provided with an external ring (515), and the top end of the external ring (515) is fixedly connected with a top ring (516), the top end of the top ring (516) is fixedly installed with a connecting plate (517), and the top end of the connecting plate (517) is provided with a top cover (7), the top end of the top cover (7) is fixedly installed with an electric push rod (311), and the top end of the electric push rod (311) is fixedly installed with a link plate (211), the bottom of the link plate (211) is fixedly installed with a plurality of long rods (9), the plurality of long rods (9) penetrate through the outer surface of the top cover (7), and the bottom end of the plurality of long rods (9) is fixedly connected with a long plate (615), the outer surface of the long plate (615) is hingedly provided with a plurality of fixed plates (616), and one end of the fixed plate (616) is connected with a stirring blade (612). The bottom end of the top cover (7) is provided with a limiting assembly for stable adjustment of the plurality of stirring blades (612). The fixing frame (1) is provided with a driving assembly for controlling the rotary motion of the top ring (516). The limiting assembly comprises a fixed shaft (611) fixedly installed at the bottom end of the top cover (7), and a plurality of sleeve pipes (613) are fixedly installed on the outer surface of the fixed shaft (611), and a rotating rod (614) is rotatably arranged in the inner wall of the plurality of sleeve pipes (613).

2. The metal 3D printing consumable drying device according to claim 1, characterized in that: The fixing frame (1) is provided with a support seat (3), the driving assembly comprises a motor (4) arranged on the support seat (3), and the output shaft of the motor (4) is fixedly connected with a grooved wheel (5), and the grooved wheel (5) and the top ring (516) are sleeved with a belt (6).

3. The metal 3D printing consumable drying device of claim 1, wherein: The top ring (516) is fixedly installed with a second tooth ring (412), and the driving assembly further comprises a first tooth ring (411) arranged on the output shaft of the motor (4), and the first tooth ring (411) and the second tooth ring (412) are used for sleeving a chain.

4. The metal 3D printing consumable drying device according to claim 3, characterized in that: A plurality of clamping grooves (513) are formed in the inner wall of the bearing ring (512).

5. The metal 3D printing consumable drying device of claim 1, wherein: A plurality of clamping blocks (514) are fixedly installed on the outer surface of the external ring (515), and the plurality of clamping blocks (514) are fixedly installed in the inner wall of the clamping groove (513).

6. The metal 3D printing consumable drying device of claim 1, wherein: The connecting plate (517) and the top cover (7) are fixedly connected through a plurality of bolts (711) and a plurality of nuts (712).

7. The metal 3D printing consumable drying device of claim 1, wherein: Two groups of handles (8) are fixedly installed on the top end of the top cover (7).

8. The metal 3D printing consumable drying device of claim 1, wherein: A plurality of limiting tubes (811) are arranged on the outer surface of the top cover (7), and the long rods (9) are slidably installed in the inner wall of the plurality of limiting tubes (811).

9. The metal 3D printing consumable drying device of claim 1, wherein: ​