3D printing material drying anti-blocking device
By combining rotary motor crushing and uniform air delivery technology, the problem of agglomeration in the drying process of 3D printing materials has been solved, achieving efficient and low-energy material pretreatment and improving production efficiency and material quality.
Patent Information
- Application Number
- CN202521950245.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-11
AI Technical Summary
Existing 3D printing material drying equipment suffers from clumping, resulting in low drying efficiency and increased energy consumption. In particular, powdered materials are dried unevenly and are prone to clumping, leading to high production efficiency and costs.
A rotary motor drives a crushing rod to break up material clumps, and hot air is evenly delivered through a ring array of blowers for dynamic drying. Combined with a pump to extract the material, this ensures uniform heating from all directions and avoids localized overheating.
It improves drying efficiency, reduces energy consumption, avoids material performance degradation, lowers production costs, and ensures material flowability and printing quality.
Smart Images
Figure CN224681064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D printing technology, and in particular to a device for drying and preventing caking of 3D printing materials. Background Technology
[0002] With the widespread application of 3D printing technology in aerospace, automotive manufacturing, medical and other fields, the performance requirements for printing materials are becoming increasingly stringent. Before printing, the materials need to be dried to remove moisture, ensure the fluidity and stability of the materials during printing, and avoid defects such as burrs and broken filaments, which would affect printing accuracy and product quality. However, current conventional drying equipment has many drawbacks: On the one hand, traditional drying ovens mostly use circulating fans for heating, which easily leads to clumping when drying damp 3D printing granules, especially materials with low melting points. Moreover, most equipment is static drying, and even those with dynamic designs cannot heat the material evenly, resulting in low drying efficiency, increased energy consumption, and potential performance degradation of some materials due to localized overheating. On the other hand, during the drying process of powdered 3D printing materials, heat conduction is hindered due to powder accumulation, and only the upper layer of powder can be dried quickly, while the drying of the inner powder takes a long time. Furthermore, the upper layer of powder is prone to clumping after drying, requiring secondary sieving, which greatly reduces production efficiency and increases production costs. Utility Model Content
[0003] The main purpose of this invention is to provide a device for drying and preventing caking of 3D printing materials, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A 3D printing material drying and anti-caking device includes a base plate, a crushing device fixedly connected to the upper end of the base plate, a feeding frame fixedly connected to the upper front of the crushing device, a drying device fixedly connected to the upper left of the base plate, support plates fixedly connected to both the left and right ends of the base plate, a fixing plate fixedly connected to the inner sides of the two support plates, a collection box fixedly connected to the upper end of the fixing plate, a first connecting seat fixedly connected to the upper right of the base plate, a pump fixedly connected to the inner wall of the first connecting seat, a suction pipe fixedly installed at the left end of the pump, and a discharge pipe fixedly installed on the lower part of the outer surface of the pump.
[0005] The crushing device includes a stirring drum and a rotary motor. The output end of the rotary motor passes through the bottom plate and the stirring drum and is fixedly connected to a movable rod. Several crushing rods are fixedly connected to the outer surface of the movable rod.
[0006] Preferably, the suction pipe penetrates the lower part of the outer surface of the mixing drum and extends to the lower part of the inner wall of the mixing drum, and the discharge pipe passes through the first connecting seat and the bottom plate in sequence and extends into the inside of the collection box.
[0007] Preferably, the lower end of the stirring drum is fixedly connected to the upper end of the base plate, and the upper end of the rotary motor is fixedly connected to the lower end of the base plate.
[0008] Preferably, several of the breaking rods are arranged in a circular array around the center of the movable rod.
[0009] Preferably, the drying device includes a second connecting seat, a dryer is fixedly connected to the inner wall of the second connecting seat, a conveying pipe is fixedly installed on the upper part of the outer surface of the dryer, the end of the conveying pipe away from the dryer passes through the stirring cylinder and is fixedly connected to a cavity block, a control valve is fixedly installed on the outer surface of the conveying pipe, four exhaust pipes are fixedly connected to the outer surface of the cavity block, and several blowers are fixedly connected to the outer surface of each of the four exhaust pipes. The lower end of the second connecting seat is fixedly connected to the upper right part of the base plate.
[0010] Preferably, the lower end of the control valve is fixedly connected to the middle of the upper end of the base plate.
[0011] Preferably, the four exhaust ducts are arranged in a circular array around the center of the cavity block, and a number of blowers are distributed at equal intervals on the outer surface of the four exhaust ducts.
[0012] Preferably, the upper end of the movable rod is movably connected to the lower end of the cavity block via a bearing.
[0013] Compared with the prior art, the present invention has the following beneficial effects: In this invention, a rotary motor drives a movable rod and a ring-shaped array of crushing rods to rotate, which can break up blocky or agglomerated 3D printing materials in advance, increasing the material's heating area. The dryer of the drying device delivers hot air evenly into the mixing drum through a conveying pipe and control valve via a ring-shaped array of exhaust pipes and equidistantly distributed blowers, ensuring that the material is heated evenly from all directions. Compared with traditional static drying equipment, this greatly shortens the drying time, improves efficiency, avoids material performance degradation due to local overheating, and reduces unnecessary energy consumption.
[0014] In this invention, the crushing device operates continuously during the drying process. The crushing rod breaks up the clumps of material while simultaneously stirring, keeping the material in a dynamic state and preventing it from re-clumping due to softening from heat. The dried material is then pumped from the stirring drum through a suction pipe and discharged into a collection box through a discharge pipe. The material remains in a flowing state throughout the process, further reducing the risk of clumping. For powdered materials, the sieving process is synchronized with drying and stirring, reducing secondary sieving steps, lowering production costs, and ensuring that the 3D printing material enters the subsequent printing stage in good condition. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a 3D printing material drying and anti-caking device according to the present invention; Figure 2 This is a cross-sectional schematic diagram of the crushing device of a 3D printing material drying and anti-caking device according to the present invention; Figure 3 This is a partial disassembled connection diagram of a 3D printing material drying and anti-caking device according to the present invention; Figure 4 This is a cross-sectional view of the internal structure of the crushing device in the 3D printing material drying and anti-caking device of this utility model. Figure 5 This is a schematic diagram showing the connection and disassembly of the drying device of the 3D printing material drying and anti-caking device of this utility model.
[0016] In the diagram: 1. Base plate; 2. Crushing device; 3. Feeding frame; 4. Drying device; 5. Support plate; 6. Fixing plate; 7. Collection box; 8. First connecting seat; 9. Pump; 10. Pumping pipe; 11. Discharge pipe; 21. Mixing drum; 22. Rotary motor; 23. Movable rod; 24. Crushing rod; 41. Second connecting seat; 42. Dryer; 43. Conveying pipe; 44. Control valve; 45. Cavity block; 46. Exhaust pipe; 47. Blower. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] Please see Figures 1-5 This utility model provides a technical solution: A 3D printing material drying and anti-caking device includes a base plate 1, a crushing device 2 fixedly connected to the upper end of the base plate 1, a feeding frame 3 fixedly connected to the upper front of the crushing device 2, a drying device 4 fixedly connected to the upper left of the base plate 1, support plates 5 fixedly connected to both the left and right ends of the base plate 1, a fixing plate 6 fixedly connected to the inner sides of the two support plates 5, a collection box 7 fixedly connected to the upper end of the fixing plate 6, a first connecting seat 8 fixedly connected to the upper right of the base plate 1, a pump 9 fixedly connected to the inner wall of the first connecting seat 8, a suction pipe 10 fixedly installed at the left end of the pump 9, and a discharge pipe 11 fixedly installed at the lower part of the outer surface of the pump 9.
[0021] In this embodiment, the crushing device 2 includes a stirring drum 21 and a rotary motor 22. The output end of the rotary motor 22 is connected to a movable rod 23 through the bottom plate 1 and the stirring drum 21. A plurality of crushing rods 24 are fixedly connected to the outer surface of the movable rod 23. The suction pipe 10 passes through the lower part of the outer surface of the stirring drum 21 and extends to the lower part of the inner wall of the stirring drum 21. The discharge pipe 11 passes through the first connecting seat 8 and the bottom plate 1 and extends into the collection box 7. The lower end of the stirring drum 21 is fixedly connected to the upper end of the bottom plate 1, and the upper end of the rotary motor 22 is fixedly connected to the lower end of the bottom plate 1. A plurality of crushing rods 24 are arranged in a ring array around the center of the movable rod 23. The upper end of the movable rod 23 is movably connected to the lower end of the cavity block 45 through a bearing.
[0022] Through the above scheme: the lower end of the stirring drum 21 is fixed to the upper end of the base plate 1, and the upper end of the rotary motor 22 is fixed to the lower end of the base plate 1, providing stable support for the crushing device 2. When the rotary motor 22 is started, its output end passes through the base plate 1 and the stirring drum 21, driving the movable rod 23 to rotate. The crushing rods 24 in the annular array on the outer surface of the movable rod 23 rotate with the rod, crushing and stirring the blocky or agglomerated 3D printing material in the stirring drum 21, increasing the heating area of the material. After drying, the pump 9 extracts the material through the extraction pipe 10 through the lower part of the stirring drum 21 to the inner wall, and then through the discharge pipe 11, through the first connecting seat 8 and the base plate 1 to the collection box 7.
[0023] In this embodiment, the drying device 4 includes a second connecting seat 41. A dryer 42 is fixedly connected to the inner wall of the second connecting seat 41. A conveying pipe 43 is fixedly installed on the upper part of the outer surface of the dryer 42. The end of the conveying pipe 43 away from the dryer 42 passes through the stirring cylinder 21 and is fixedly connected to a cavity block 45. A control valve 44 is fixedly installed on the outer surface of the conveying pipe 43. Four exhaust pipes 46 are fixedly connected to the outer surface of the cavity block 45. Several blowers 47 are fixedly connected to the outer surface of each of the four exhaust pipes 46. The lower end of the second connecting seat 41 is fixedly connected to the upper right part of the base plate 1. The lower end of the control valve 44 is fixedly connected to the upper middle part of the base plate 1. The four exhaust pipes 46 are arranged in a circular array around the center of the cavity block 45. Several blowers 47 are evenly distributed on the outer surface of the four exhaust pipes 46. The upper end of the movable rod 23 is movably connected to the lower end of the cavity block 45 through a bearing.
[0024] Through the above scheme: the lower end of the second connecting seat 41 is fixed to the upper right part of the base plate 1, providing a stable installation foundation for the dryer 42; the lower end of the control valve 44 is fixed to the middle part of the upper part of the base plate 1, ensuring the stability of the conveying pipe 43. When the dryer 42 is started, the hot air generated by it enters the conveying pipe 43. The hot air delivery volume can be adjusted by the control valve 44 to control the drying intensity. The hot air passes through the mixing drum 21 through the conveying pipe 43 and enters the cavity block 45. The four exhaust pipes 46 in the annular array on the outer surface of the cavity block 45 divert the hot air to the equally distributed blowers 47. The blowers 47 blow hot air evenly into the mixing drum 21 to achieve all-round drying of the material.
[0025] It should be noted that this utility model is a 3D printing material drying and anti-caking device. In use, firstly, the 3D printing material to be processed is poured into the mixing drum 21 through the feeding frame 3. The feeding amount is controlled to avoid excessive material affecting the mixing and drying effect. The rotary motor 22 is started, and its output end drives the movable rod 23 and the ring array of crushing rods 24 to rotate, breaking up the material clumps. At the same time, the dryer 42 is started, the control valve 44 is opened, and hot air enters the cavity block 45 through the conveying pipe 43, and then blows evenly onto the material in the mixing drum 21 through the blower 47 of the exhaust pipe 46, realizing simultaneous crushing and drying. After drying, the pump 9 is started, and the processed material is extracted through the extraction pipe 10. The material is conveyed through the discharge pipe 11 and finally enters the collection box 7 at the top of the fixed plate 6. When the collection box 7 is full or the material processing is completed, the pump 9, the rotary motor 22 and the dryer 42 are turned off to complete the overall process.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for drying and preventing clumping of 3D printing materials, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a crushing device (2), the front part of the upper end of the crushing device (2) is fixedly connected to a feeding frame (3), the upper left part of the base plate (1) is fixedly connected to a drying device (4), the left and right ends of the base plate (1) are both fixedly connected to support plates (5), the inner sides of the two support plates (5) are fixedly connected to a fixing plate (6), the upper end of the fixing plate (6) is fixedly connected to a collection box (7), the upper right part of the base plate (1) is fixedly connected to a first connecting seat (8), the inner wall of the first connecting seat (8) is fixedly connected to a pump (9), the left end of the pump (9) is fixedly installed with a suction pipe (10), and the lower part of the outer surface of the pump (9) is fixedly installed with a discharge pipe (11). The crushing device (2) includes a stirring drum (21) and a rotary motor (22). The output end of the rotary motor (22) passes through the bottom plate (1) and the stirring drum (21) and is fixedly connected to a movable rod (23). Several crushing rods (24) are fixedly connected to the outer surface of the movable rod (23).
2. The 3D printing material drying and anti-caking device according to claim 1, characterized in that: The extraction pipe (10) passes through the lower part of the outer surface of the mixing drum (21) and extends to the lower part of the inner wall of the mixing drum (21). The discharge pipe (11) passes through the first connecting seat (8) and the bottom plate (1) in sequence and extends into the inside of the collection box (7).
3. The 3D printing material drying and anti-caking device according to claim 1, characterized in that: The lower end of the stirring drum (21) is fixedly connected to the upper end of the base plate (1), and the upper end of the rotary motor (22) is fixedly connected to the lower end of the base plate (1).
4. The 3D printing material drying and anti-caking device according to claim 1, characterized in that: Several of the aforementioned breaking rods (24) are arranged in a ring array around the center of the movable rod (23).
5. The 3D printing material drying and anti-caking device according to claim 1, characterized in that: The drying device (4) includes a second connecting seat (41), a dryer (42) is fixedly connected to the inner wall of the second connecting seat (41), a conveying pipe (43) is fixedly installed on the upper part of the outer surface of the dryer (42), a cavity block (45) is fixedly connected to the end of the conveying pipe (43) away from the dryer (42) through the stirring cylinder (21), a control valve (44) is fixedly installed on the outer surface of the conveying pipe (43), four exhaust pipes (46) are fixedly connected to the outer surface of the cavity block (45), and several blowers (47) are fixedly connected to the outer surface of each of the four exhaust pipes (46). The lower end of the second connecting seat (41) is fixedly connected to the upper right part of the base plate (1).
6. The 3D printing material drying and anti-caking device according to claim 5, characterized in that: The lower end of the control valve (44) is fixedly connected to the middle of the upper end of the base plate (1).
7. The 3D printing material drying and anti-caking device according to claim 5, characterized in that: The four exhaust ducts (46) are arranged in a ring array around the center of the cavity block (45), and a number of blowers (47) are distributed at equal intervals on the outer surface of the four exhaust ducts (46).
8. The 3D printing material drying and anti-caking device according to claim 1, characterized in that: The upper end of the movable rod (23) is movably connected to the lower end of the cavity block (45) via a bearing.