Multi-mode metal powder uniform drying device
By designing a multimodal metal powder drying device that includes a rotating mechanism and a heating element, the problems of poor drying effect and segregation of multimodal powder were solved, achieving uniform drying and efficient mixing, thereby improving the quality of 3D printing and the performance of the molded parts.
Patent Information
- Application Number
- CN202520211420.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing drying devices for multimodal mixed powders suffer from poor drying effects and are prone to segregation, which affects the quality of 3D printing and the precision and performance of the molded parts.
The device includes a base, a rotating mechanism, a drying unit body, and a heating element. The drying unit is driven to rotate by a drive component and a transmission assembly. The heating element and a stirring rod are combined to mix and heat the powder in the drying chamber. The serrated structure enhances the uniformity of mixing, and an ultrasonic vibrator prevents powder blockage.
This technology enables uniform drying of multimodal metal powders, improves drying efficiency, avoids powder segregation, and ensures uniformity and quality of the 3D printing process.
Smart Images
Figure CN223691447U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to multimode metal powder processing technical field more specifically relates to a multimode metal powder even drying device. BACKGROUND
[0002] In the metal 3D printing process, the drying degree of powder has a significant impact on the printing quality. First, the drying degree of powder will affect its flowability, and flowability is one of the key performance indicators in 3D printing, which directly affects the uniformity of powder laying and the stability of powder feeding process in the printing process. If the metal powder is too wet, its flowability will be reduced, which will easily lead to uneven spreading of powder layer in the printing process, seriously affecting the precision and performance of the printed part. Secondly, wet metal powder may cause insufficient or uneven melting of powder during printing, affecting the density and overall performance of the formed part. Finally, whether the powder is dry directly affects the physical and chemical properties of the material, such as the flowability and bulk density of the powder after absorbing moisture, which may be reduced, and chemical reactions may occur, affecting its reuse effect.
[0003] At present, powder drying usually uses a drying box. The operation process is to place the powder in a metal container in the drying box after the drying box is raised to a preset temperature and left for 5-8 hours. However, for binder jet additive manufacturing, multi-modal mixed powder is usually used to improve the bulk density and promote densification during the sintering process. That is, the powder is mixed and used according to a certain powder particle size and proportion. Un-dried multi-modal mixed powder is prone to segregation due to particle size difference.
[0004] Therefore, there is an urgent need for a drying device suitable for multi-modal mixed powder to effectively improve the powder drying effect and effectively avoid the segregation of multi-modal powder. Utility model content
[0005] The utility model aims at providing a multimode metal powder even drying device to solve the above-mentioned problems of the prior art, which is simple in structure, convenient to use, effectively improves the powder drying effect, and effectively avoids the segregation of multi-modal powder.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0007] The utility model provides a multimode metal powder even drying device, include: base, rotating mechanism, drying device ontology and a plurality of heating parts, rotating mechanism includes drive part and transmission assembly, the fixed end of drive part is connected with base fixedly, the drive end of drive part is connected with transmission assembly transmission, transmission assembly is provided with rotating station, drying device ontology is provided with drying cavity, one end is equipped with powder import and export, powder import and export with drying cavity intercommunication, drying device ontology is used for horizontal placement in rotating station and can rotate under the drive of transmission assembly to mix the powder that enters drying cavity, each heating part sets up in the lateral wall of drying device ontology to can heat drying cavity.
[0008] Preferably, the drying device body includes a drum, a first end cover, a second end cover, an inlet and outlet pipe and an inlet and outlet valve, the first end cover is used for fastening connection with the first end of the drum, the second end cover is used for fastening connection with the second end of the drum to form the drying cavity in the drum, the inlet and outlet pipe is connected with the first end cover and communicates with the drying cavity, the powder inlet and outlet is arranged at one end of the inlet and outlet pipe away from the first end cover, the inlet and outlet valve is arranged on the inlet and outlet pipe, and the drum is used for horizontal placement on the rotating station.
[0009] Preferably, the heating part is a heating rod, a plurality of axial heating rod holes are arranged in the lateral wall of the drum, the heating rod hole communicates with the end face of the second end of the drum, and each heating rod is used for placement in the heating rod hole.
[0010] Preferably, the drying device body further includes a plurality of stirring rods, and each stirring rod is used for placement in the drying cavity.
[0011] Preferably, the inner wall of the drum is circumferentially provided with a sawtooth structure for enhancing uniform mixing.
[0012] Preferably, the drying device body further includes an ultrasonic vibrator, the ultrasonic vibrator is sleeved on the outside of the inlet and outlet pipe and is fixedly connected with the first end cover.
[0013] Preferably, the drying device body further comprises a plurality of first connecting bolts, a first sealing ring, a plurality of second connecting bolts and a plurality of second sealing rings, the first end cover is provided with a plurality of first fastening counterbores in the circumferential direction, the end face of the first end of the roller is provided with a plurality of first threaded holes in the circumferential direction, one first connecting bolt is used for being screwed through one first fastening counterbores and one first threaded hole, the second end cover is provided with a plurality of second fastening counterbores in the circumferential direction, the end face of the second end of the roller is provided with a plurality of second threaded holes in the circumferential direction, one second connecting bolt is used for being screwed through one second fastening counterbores and one second threaded hole, the first end cover is provided with a first annular groove on the side facing the roller, and the first sealing ring is mounted in the first annular groove; the second end cover is provided with a second annular groove on the side facing the roller, and the second sealing ring is mounted in the second annular groove.
[0014] Preferably, the drying device body further comprises a plurality of first connecting bolts, a first sealing ring, a plurality of second connecting bolts and a plurality of second sealing rings, the first end cover is provided with a plurality of first fastening counterbores in the circumferential direction, the end face of the first end of the roller is provided with a plurality of first threaded holes in the circumferential direction, one first connecting bolt is used for being screwed through one first fastening counterbores and one first threaded hole, the second end cover is provided with a plurality of second fastening counterbores in the circumferential direction, the end face of the second end of the roller is provided with a plurality of second threaded holes in the circumferential direction, one second connecting bolt is used for being screwed through one second fastening counterbores and one second threaded hole, the first end cover is provided with a first annular groove on the side facing the roller, and the first sealing ring is mounted in the first annular groove; the second end cover is provided with a second annular groove on the side facing the roller, and the second sealing ring is mounted in the second annular groove.
[0015] The transmission assembly comprises a belt, a driving roller, a driving shaft, a driven roller and a driven shaft, the driving shaft and the driven shaft are arranged in parallel, and the two ends of the driving shaft and the driven shaft are rotatably connected with the first side plate and the second side plate through bearings, the driving shaft of the driving motor is drivingly connected with one end of the driving shaft which extends out of the second side plate through a belt, the driving roller is coaxially fixedly connected to the outer side of the driving shaft, the driven roller is coaxially fixedly connected to the outer side of the driven shaft, and the rotating station is formed between the driving roller and the driven roller.
[0016] Preferably, the transmission assembly further comprises two first annular baffles and two second annular baffles, the two first annular baffles are arranged at the two ends of the driving roller respectively, and the two second annular baffles are arranged at the two ends of the driven roller respectively.
[0017] Preferably, the drying device body further comprises a locking pin, the locking pin is fixedly connected to the top of the second side plate, the drying device body further comprises a stator cover and an extension rod, the stator cover is coaxially rotatably connected with the second end cover, the extension rod is coaxially fixedly connected with the stator cover, and a positioning pin hole is arranged on the side wall of the extension rod, the positioning pin hole is used for inserting the locking pin to axially position the drying device body.
[0018] The utility model discloses relative to prior art has obtained following technical effect:
[0019] 1. Through setting the base, rotating mechanism, drying device body and heating piece, uniform drying of multi-modal metal powder is realized. The driving piece and transmission assembly can drive the drying device body to rotate, so that the powder is fully mixed in the drying cavity, and the uniformity of drying is improved. The heating piece is arranged in the side wall of the drying device body, which can heat the drying cavity and accelerate the drying speed of the powder.
[0020] 2. A plurality of stirring rods are arranged in the drying cavity, which can further improve the mixing uniformity of the powder, so that the powder is heated more uniformly during the drying process, and the drying effect is improved.
[0021] 3. The sawtooth structure of the inner wall of the drum can increase the friction between the powder and the inner wall of the drum, so that the powder is more fully mixed during rotation, the mixing uniformity is improved, and the drying effect is further improved.
[0022] 4. The setting of the locking pin, stator cover and extension rod can axially position the drying device body, prevent the drying device body from axially moving during rotation, and ensure the stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.
[0024] Figure 1 The drawing is a schematic diagram of the overall structure of the present application;
[0025] Figure 2 The drawing is a schematic diagram of the structure of the uniform drum in the present application;
[0026] Figure 3 The drawing is a schematic diagram of the structure of the base and rotating mechanism in the present application;
[0027] Figure 4 The drawing is a schematic diagram of the structure in the red open motion process in the present application;
[0028] Figure 5 The drawing is a sectional view of the second end cover in the present application;
[0029] Figure 6 The drawing is a schematic diagram of the structure of the heating piece in the present application.
[0030] Wherein: 1, base; 11, first side plate; 12, second side plate; 13, anchor; 14, positioning pin; 2, rotating mechanism; 21, drive motor; 22, drive shaft; 23, belt; 24, driving roller; 25, driving shaft; 26, driven roller; 27, driven shaft; 28, first ring baffle; 29, second ring baffle; 3, drying device body; 31, roller; 32, first end cover; 33, second end cover; 34, inlet and outlet pipe; 35, inlet and outlet valve; 36, stirring rod; 37, ultrasonic vibrator; 38, second threaded hole; 40, first sealing ring; 41, stator cover; 42, extension rod; 43, positioning pin hole; 44, heating rod hole; 45, first fastening counterbore; 46, wire hole; 5, heating element. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0032] The purpose of the present application is to provide a kind of multimodal metal powder uniform drying device, to solve the problems existing in the prior art, simple structure, convenient to use, effectively improve powder drying effect, effectively avoid the segregation of multimodal powder.
[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0034] The present application provides a kind of multimodal metal powder uniform drying device, such as Figures 1-6As shown, it comprises a base 1, a rotating mechanism 2, a drying device body 3 and a plurality of heating elements 5. The rotating mechanism 2 comprises a driving element and a transmission assembly. The fixed end of the driving element is fixedly connected with the base 1, and the driving end of the driving element is in transmission connection with the transmission assembly. The transmission assembly is provided with a rotating station. The drying device body 3 is provided with a drying cavity and a powder inlet and outlet. The powder inlet and outlet are in communication with the drying cavity. The drying device body 3 is used for being horizontally placed on the rotating station and being rotated under the driving of the transmission assembly to mix the powder entering the drying cavity. Each heating element 5 is arranged in the side wall of the drying device body 3 to heat the drying cavity. By arranging the base 1, the rotating mechanism 2, the drying device body 3 and the heating elements 5, the uniform drying of the multi-modal metal powder is realized. The driving element and the transmission assembly can drive the drying device body 3 to rotate, so that the powder is fully mixed in the drying cavity, and the uniformity of drying is improved. The heating elements 5 are arranged in the side wall of the drying device body 3, so that the drying cavity can be heated, and the drying speed of the powder is accelerated.
[0035] In a preferred embodiment, the drying device body 3 comprises a roller 31, a first end cover 32, a second end cover 33, an inlet and outlet pipe 34 and an inlet and outlet valve 35. The first end cover 32 is used for being tightly connected with the first end of the roller 31. The second end cover 33 is used for being tightly connected with the second end of the roller 31 to form a drying cavity in the roller 31. The inlet and outlet pipe 34 is connected with the first end cover 32 and communicates with the drying cavity. The powder inlet and outlet is arranged at one end of the inlet and outlet pipe 34 away from the first end cover 32. The inlet and outlet valve 35 is arranged on the inlet and outlet pipe 34. The drying device body 3 is designed in the form of combination of the roller 31, the first end cover 32, the second end cover 33, the inlet and outlet pipe 34 and the inlet and outlet valve 35, so as to facilitate installation and disassembly, and cleaning and maintenance of the drying cavity. The arrangement of the inlet and outlet pipe 34 and the inlet and outlet valve 35 facilitates the control of the powder inlet and outlet, and improves the operation convenience.
[0036] In a preferred embodiment, the heating element 5 is a heating rod. A plurality of axial heating rod holes are arranged in the side wall of the roller 31. The heating rod holes communicate with the end face of the second end of the roller 31. Each heating rod is used for being placed in the heating rod hole 44. The heating rod is used as the heating element 5, so as to have good heating effect and fast heating speed. The heating rod holes are arranged in the side wall of the roller 31, so as to facilitate the installation and replacement of the heating rod, and also to ensure good contact between the heating rod and the drying cavity, and improve the heat transfer efficiency.
[0037] In a preferred embodiment, the drying device body 3 further comprises a plurality of stirring rods 36. Each stirring rod 36 is used for being placed in the drying cavity. The plurality of stirring rods 36 arranged in the drying cavity can further improve the mixing uniformity of the powder, so that the powder is heated more uniformly in the drying process, and the drying effect is improved.
[0038] In a preferred embodiment, the inner wall of the drum 31 is provided with a sawtooth structure for enhancing mixing uniformity. The sawtooth structure of the inner wall of the drum 31 can increase the friction between the powder and the inner wall of the drum 31, so that the powder is more fully mixed during rotation, improving mixing uniformity and further improving drying effect.
[0039] In a preferred embodiment, the drying device body 3 further comprises an ultrasonic vibrator 37, which is sleeved on the outside of the feeding and discharging pipe 34 and fixedly connected with the first end cover 32. The arrangement of the ultrasonic vibrator 37 can make the powder flow out of the drying cavity more smoothly during discharging, avoid powder blockage of the feeding and discharging pipe 34, and improve the discharging efficiency.
[0040] In a preferred embodiment, the drying device body 3 further comprises a plurality of first connecting bolts, a first sealing ring 40, a plurality of second connecting bolts, and a plurality of second sealing rings. The first end cover 32 is provided with a plurality of first fastening counterbores 45 in the circumferential direction, and the end surface of the first end of the drum 31 is provided with a plurality of first threaded holes in the circumferential direction. One first connecting bolt is used to threadedly connect one first fastening counterbore 45 and one first threaded hole. The second end cover 33 is provided with a plurality of second fastening counterbores in the circumferential direction, and the end surface of the second end of the drum 31 is provided with a plurality of second threaded holes 38 in the circumferential direction. One second connecting bolt is used to threadedly connect one second fastening counterbore and one second threaded hole 38. The first end cover 32 is provided with a first ring groove on the side facing the drum 31, and the first sealing ring 40 is installed in the first ring groove. The second end cover 33 is provided with a second ring groove on the side facing the drum 31, and the second sealing ring is installed in the second ring groove. The first end cover 32 and the second end cover 33 are fastened and connected with the drum 31 by the first connecting bolts and the second connecting bolts, respectively. The connection is firm and reliable, and is convenient for disassembly and installation. The arrangement of the first sealing ring 40 and the second sealing ring can ensure the sealing of the drying cavity, avoid powder leakage and external air entering the drying cavity, and affect the drying effect.
[0041] In a preferred embodiment, the first side plate 11 and the second side plate 12 are parallelly arranged and fixedly connected to the top of the base 1. The driving member is a driving motor 21,
[0042] The transmission assembly comprises a belt 23, a driving roller 24, a driving shaft 25, a driven roller 26 and a driven shaft 27, the driving shaft 25 and the driven shaft 27 are arranged in parallel, two ends of the driving shaft 25 and the driven shaft 27 are rotatably connected with the first side plate 11 and the second side plate 12 through bearings respectively, one end of the driving shaft 25, which extends out of the second side plate 12, is connected with the driving shaft 22 of the driving motor 21 through the belt 23, the driving roller 24 is coaxially fixedly connected to the outer side of the driving shaft 25, and the driven roller 26 is coaxially fixedly connected to the outer side of the driven shaft 27; the first side plate 11 and the second side plate 12 are arranged, so that installation support is provided for the transmission assembly. The driving motor 21 drives the driving shaft 25 to rotate through the belt 23, and then drives the driving roller 24 to rotate, so that the drying device body 3 placed on the driving roller 24 and the driven roller 26 is rotated, and the transmission is stable and reliable.
[0043] In a preferred embodiment, the transmission assembly further comprises two first ring baffles 28 and two second ring baffles 29, the two first ring baffles 28 are arranged at two ends of the driving roller 24 respectively, and the two second ring baffles 29 are arranged at two ends of the driven roller 26 respectively; the arrangement of the first ring baffles 28 and the second ring baffles 29 can prevent the drying device body 3 from sliding off the driving roller 24 and the driven roller 26 during rotation, and improve the safety and stability of the equipment.
[0044] In a preferred embodiment, a locking pin is further included, the locking pin is fixedly connected to the top of the second side plate 12, the drying device body 3 further comprises a stator cover 41 and an extension rod 42, the stator cover 41 is rotatably connected with the second end cover 33 coaxially, the extension rod 42 is fixedly connected with the stator cover 41 coaxially, a positioning pin hole 43 is arranged on the side wall of the extension rod 42, and the positioning pin hole 43 is used for inserting the locking pin to axially position the drying device body 3; the arrangement of the locking pin, the stator cover 41 and the extension rod 42 can axially position the drying device body 3, prevent the drying device body 3 from axially moving during rotation, and ensure the stable operation of the equipment.
[0045] In a preferred embodiment, the extension rod 42 is provided with a through lead hole 46, an electric slip ring structure is arranged between the stator cover 41 and the second end cover 33, one end of the electric slip ring structure is electrically connected with the lead wire of the heating rod, and the other end is connected with the power supply through the lead wire penetrating through the lead hole 46.
[0046] In a preferred embodiment, the inlet and outlet valve 35 is an electric inlet and outlet valve 35.
[0047] In a preferred embodiment, the bottom of the base 1 is provided with a plurality of footings 13.
[0048] The use process of the multi-modal metal powder uniform drying device is as follows:
[0049] First step: take off the drying device body 3, open the electric inlet and outlet valve 35, fill the metal powder to be dried into the drum 31 by the powder inlet and outlet (the powder filling amount is 1 / 3-1 / 2 of the drying cavity volume), and add 10-20 stirring rods 36.
[0050] Second step: place the drying device body 3 on the rotating station formed between the driven roller 26 and the driving roller 24 (as shown in the drying device body drying motion diagram), and insert the locking pin into the positioning pin hole 43. Figure 4
[0051] Third step: start the driving motor 21 and the heating rod, the driving shaft 22 starts to rotate, and the driving roller 24 is rotated through the belt 23 and the driving shaft 25, that is, the drying device body placed between the driven roller 26 and the driving roller 24 rotates, and keeps for a certain time (according to the actual situation); at the same time, under the action of the locking pin, the drying device body does not move.
[0052] Fourth step: turn off the driving motor 21 and the heating rod, the motor stops moving and the heating rod stops heating, take off the drying device body, hang the drying device body on the hanging equipment through the positioning pin hole 43, and connect the filling bottle or filling bag with the powder inlet and outlet, open the electric inlet and outlet valve 35 and the ultrasonic vibrator 37, then pick out the stirring rod 36 after the powder and the stirring rod 36 are output from the powder inlet and outlet, and seal and store.
[0053] Fifth step: open the bolt in the second fastening counterbore and the second threaded hole 38, remove the second end cover 33 and its attached parts, clean the drum 31, and complete the powder drying.
[0054] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A multi-modal metal powder uniform drying apparatus, characterized by, The utility model relates to a kind of powder drying device, including: Base (1); Rotary mechanism (2), the rotary mechanism (2) includes driving piece and transmission assembly, the fixed end of the driving piece is fixedly connected with the base (1), the driving end of the driving piece is drivingly connected with the transmission assembly, the transmission assembly is provided with rotary station; Drying device body (3), the drying device body (3) is provided with drying cavity, one end is equipped with powder inlet and outlet, the powder inlet and outlet are communicated with the drying cavity, the drying device body (3) is used to be placed horizontally on the rotary station and can be rotated under the driving of the transmission assembly to mix the powder entering the drying cavity; And Multiple heating pieces (5), each heating piece (5) is arranged in the side wall of the drying device body (3) to heat the drying cavity.
2. The multi-modal metal powder uniform drying apparatus of claim 1, wherein: The drying device body (3) includes roller (31), first end cover (32), second end cover (33), inlet and outlet pipe (34) and inlet and outlet valve (35), the first end cover (32) is used to be fastened with the first end of the roller (31), the second end cover (33) is used to be fastened with the second end of the roller (31) to form the drying cavity in the roller (31), the inlet and outlet pipe (34) is connected with the first end cover (32) and communicates the drying cavity, the powder inlet and outlet are arranged at the end of the inlet and outlet pipe (34) away from the first end cover (32), the inlet and outlet valve (35) is arranged on the inlet and outlet pipe (34), the roller (31) is used to be placed horizontally on the rotary station.
3. The multi-modal metal powder uniform drying apparatus of claim 2, wherein: The heating piece (5) is heating rod, the side wall of the roller (31) is provided with multiple axial heating rod holes (44), the heating rod hole (44) is communicated with the end face of the second end of the roller (31), each heating rod is inserted into the heating rod hole (44) from the end face of the second end.
4. The multi-modal metal powder uniform drying apparatus of claim 3, wherein: Still include multiple stirring rods (36), each stirring rod (36) is used to be placed in the drying cavity.
5. The multi-modal metal powder uniform drying apparatus of claim 4, wherein: The inner wall of the roller (31) is circumferentially provided with sawtooth structure for enhancing mixing uniformity.
6. The multi-modal metal powder uniform drying apparatus of claim 5, wherein: Still include ultrasonic vibrator (37), the ultrasonic vibrator (37) is sleeved on the outside of the inlet and outlet pipe (34) and is fixedly connected with the first end cover (32).
7. The multi-modal metal powder uniform drying apparatus of claim 6, wherein: The drying device body (3) further comprises a plurality of first connecting bolts, a first sealing ring (40), a plurality of second connecting bolts and a plurality of second sealing rings, the first end cover (32) is provided with a plurality of first fastening counterbores (45) in the circumferential direction, the end face of the first end of the roller (31) is provided with a plurality of first threaded holes in the circumferential direction, the first connecting bolts are threadedly connected one by one through the first fastening counterbores (45) and the first threaded holes, the second end cover (33) is provided with a plurality of second fastening counterbores in the circumferential direction, the end face of the second end of the roller (31) is provided with a plurality of second threaded holes (38) in the circumferential direction, the second connecting bolts are threadedly connected one by one through the second fastening counterbores and the second threaded holes (38), the first end cover (32) is provided with a first ring groove on the side facing the roller (31), and the first sealing ring (40) is used to be mounted in the first ring groove; the second end cover (33) is provided with a second ring groove on the side facing the roller (31), and the second sealing ring is mounted in the second ring groove.
8. The multi-modal metal powder uniform drying apparatus of claim 7, wherein: Further comprising a first side plate (11) and a second side plate (12), the first side plate (11) and the second side plate (12) are arranged in parallel and fixedly connected to the top of the base (1); the driving member is a driving motor (21), The transmission assembly comprises a belt (23), a driving roller (24), a driving shaft (25), a driven roller (26) and a driven shaft (27), the driving shaft (25) and the driven shaft (27) are arranged in parallel, and both ends of the driving shaft (25) and the driven shaft (27) are rotatably connected to the first side plate (11) and the second side plate (12) through bearings, the driving shaft (22) of the driving motor (21) is drivingly connected to one end of the driving shaft (25) protruding out of the second side plate (12) through the belt (23), the driving roller (24) is coaxially fixedly connected to the outside of the driving shaft (25), the driven roller (26) is coaxially fixedly connected to the outside of the driven shaft (27), and the rotating station is formed between the driving roller (24) and the driven roller (26).
9. The multi-modal metal powder uniform drying apparatus of claim 8, wherein: The transmission assembly further comprises two first ring baffles (28) and two second ring baffles (29), two first ring baffles (28) are arranged at both ends of the driving roller (24) respectively, and two second ring baffles (29) are arranged at both ends of the driven roller (26) respectively.
10. The multi-modal metal powder uniform drying apparatus of claim 9, wherein: Further comprising a locking pin fixedly connected to the top of the second side plate (12), the drying device body (3) further comprises a stator cover (41) and an extension rod (42), the stator cover (41) is coaxially rotatably connected to the second end cover (33), the extension rod (42) is coaxially fixedly connected to the stator cover (41), and a positioning pin hole (43) is arranged on the side wall of the extension rod (42), the positioning pin hole (43) is used for inserting the locking pin to axially position the drying device body (3).