Local printing heating framework based on 3D printer and 3D printing device

Abstract

The utility model discloses a local printing heating framework based on a 3D printer and a 3D printing device, and the local printing heating framework based on the 3D printer comprises a printing assembling component, a heating component and a heating component, and an adjustable forming platform is arranged in the printing platform assembly, and an adjustable printing forming space is correspondingly formed between the printing platform assembly and the printing assembly assembly based on the forming platform. The technical problems that in the prior art, when cavity sealing heat preservation treatment is carried out in the 3D printing process, a sealing cavity is usually large, adaptability adjustment is difficult, and consequently the use cost is high, and potential instability hazards exist are solved.

Description

Localized printing heating architecture and 3D printing device based on 3D printer Technical Field

[0001] This utility model relates to the field of 3D printing technology, and more specifically, to a local printing heating structure and 3D printing device based on a 3D printer. Background Technology

[0002] Currently, for fused filament manufacturing 3D printing technology, when printing polymer materials, the printed parts often deform due to the material's shrinkage when cooled.

[0003] A common solution to this problem is to enclose the equipment to form a cavity, and heat the entire cavity with hot air during the printing process until it reaches the specified temperature that meets the process requirements before starting printing. The cavity is continuously heated during the printing process. After printing is completed, the heated cavity is slowly cooled down until it reaches close to room temperature or below the glass transition temperature of the material before the workpiece is removed.

[0004] While the above structural design can meet printing needs to some extent, it requires a much larger space for the printer to be heated than the actual process requires, making it more difficult to ensure temperature uniformity. In addition, the equipment consumes more energy for heating, takes longer to heat up and cool down, and has a larger size, which in turn increases the cost of using the equipment. Furthermore, there are potential instabilities in the process, resulting in lower overall functionality and practicality. Summary of the Invention

[0005] To address this, the present invention provides a local printing heating architecture and 3D printing device based on a 3D printer, in order to solve the technical problems in the prior art where the cavity is usually large and difficult to adapt during the cavity sealing and heat preservation process in 3D printing, resulting in high usage costs and potential instability.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A localized printing heating architecture based on a 3D printer, comprising:

[0008] Print assembly components;

[0009] The printing platform component has an adjustable forming platform built in, and the printing platform component forms an adjustable printing forming space between the forming platform and the printing assembly component.

[0010] Based on the above technical solution, the present invention is further described as follows:

[0011] As a further embodiment of this utility model,

[0012] The printed assembly assembly has a first heated sealing cavity;

[0013] The printing platform component includes a basic cylinder;

[0014] The base cylinder forms a second heating and sealing cavity based on the molding platform, and the second heating and sealing cavity is connected to the first heating and sealing cavity to form an adjustable printing and molding space.

[0015] As a further embodiment of this utility model,

[0016] The printed assembly assembly also has a first docking port that connects to the first heating and sealing cavity.

[0017] The top of the base cylinder is provided with the second docking port;

[0018] The molding platform and the second docking port form the second heating sealing cavity;

[0019] The second docking port is located directly below the first docking port, and the second docking port and the first docking port are connected in a detachable sealed manner.

[0020] As a further embodiment of this utility model,

[0021] The molding platform is vertically slidably mounted inside the base cylinder via a lifting drive mechanism.

[0022] As a further embodiment of this utility model,

[0023] The sealing element is fixedly provided on the outer side of the molding platform;

[0024] The seal is configured to maintain a pressure connection with the inner wall of the base cylinder.

[0025] As a further aspect of this utility model, it also includes:

[0026] The feeding nozzle assembly has its discharge end corresponding to the printing platform assembly.

[0027] As a further embodiment of this utility model,

[0028] The feeding nozzle assembly includes a feeding mechanism, a heating mechanism, and a nozzle structure that is connected to the discharge end of the feeding mechanism via the heating mechanism.

[0029] The nozzle structure is oriented towards the first docking port;

[0030] The nozzle structure is driven and assembled at the other end of the heating mechanism via a motion mechanism, or the nozzle structure and the heating mechanism are driven and assembled on the motion mechanism.

[0031] As a further embodiment of this utility model,

[0032] The feeding mechanism, the heating mechanism, and the nozzle structure are all located inside the first heating and sealing cavity.

[0033] As a further embodiment of this utility model,

[0034] The molding platform is fitted with a heat insulation layer.

[0035] A 3D printing apparatus includes the aforementioned local printing heating architecture based on a 3D printer.

[0036] This utility model has the following beneficial effects:

[0037] This architecture and device can form an adjustable printing space by cooperating with the printing assembly component and the printing platform component to correspond to the outer side of the feeding nozzle component. This allows for an adaptive reduction of the space required for heating during the printing process, effectively eliminating redundant space. While ensuring a more uniform temperature in the printing space, the overall equipment consumes less heating energy and has a shorter heating and cooling time, resulting in lower overall operating costs, a more stable process, and improved overall functionality and practicality. Attached Figure Description

[0038] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0039] Figure 1 is one of the overall application state structure diagrams of the local printing heating architecture based on a 3D printer provided in the embodiment of this utility model.

[0040] Figure 2 is a schematic diagram of the overall application state structure of the local printing heating architecture based on a 3D printer provided in this embodiment of the present invention.

[0041] The attached diagram lists the components represented by each number as follows:

[0042] Printed assembly component 1: First heating and sealing cavity 11, first docking port 12;

[0043] Feeding nozzle assembly 2: feeding mechanism 21, heating mechanism 22, nozzle structure 23;

[0044] Printing platform component 3: base cylinder 31, second docking port 32, forming platform 33, sealing element 34, second heating sealing cavity 35;

[0045] Printed document a. Detailed Implementation

[0046] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0047] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0048] As shown in Figures 1 and 2, this utility model embodiment provides a local printing heating architecture based on a 3D printer and a 3D printing device including the local printing heating architecture. The local printing heating architecture includes a printing assembly 1, a feeding nozzle assembly 2, and a printing platform assembly 3. The printing assembly 1 and the printing platform assembly 3 cooperate to form an adjustable printing space corresponding to the outer side of the feeding nozzle assembly 2. This allows for adaptive reduction of the space requiring heating during the printing process, effectively eliminating redundant space. While ensuring a more uniform temperature in the printing space, the overall equipment consumes less heating energy and has shorter heating and cooling times, resulting in lower overall operating costs, a more stable process, and improved overall functionality. Specific settings are as follows:

[0049] Please refer to Figures 1 and 2. The printing assembly 1 has a first heating sealing cavity 11 and a first docking port 12 connected to the first heating sealing cavity 11.

[0050] The feeding nozzle assembly 2 includes a feeding mechanism 21, a heating mechanism 22, and a nozzle structure 23. The base of the feeding mechanism 21 is driven and mounted on the printing assembly 1. The feeding mechanism 21, the heating mechanism 22, and the nozzle structure 23 are all located inside the first heating sealing cavity 11, used to feed printing material monofilaments, discrete granules, or powdered printing material via the feeding mechanism 21. The printing material includes, but is not limited to, plastic. One end of the heating mechanism 22 is driven and fixedly mounted on the discharge end of the feeding mechanism 21, used to melt the printing material from the feeding mechanism 21 via the heating mechanism 22. The nozzle structure 23 is driven and mounted on the other end of the heating mechanism 22 via a motion mechanism, and the nozzle structure 23 is connected to the discharge end of the feeding mechanism 21 via the heating mechanism 22. The nozzle structure 23 faces the first docking port 12, used to effectively extrude the molten printing material according to a specified size and shape relative to the printing platform assembly 3 to form a printed part a.

[0051] In one optional implementation, the nozzle structure 23 and the heating mechanism 22 are synchronously driven and assembled on the motion mechanism, so as to form the molten printing material into the printed part a according to the motion path by means of the motion mechanism.

[0052] Please refer to Figures 1 and 2. The printing platform assembly 3 includes a base cylinder 31, a second docking port 32, a forming platform 33, a sealing element 34, and a second heating sealing cavity 35. The base cylinder 31 has a second docking port 32 at its top, located directly below the first docking port 12, and the second docking port 32 and the first docking port 12 are detachably and sealedly connected. The forming platform 33 is vertically slidably mounted inside the base cylinder 31 via a lifting drive mechanism, and the sealing element 34 is fixedly mounted on the outer periphery of the forming platform 33. The sealing element 34 can be, but is not limited to, a sealing strip, and is in contact with the inner wall of the base cylinder 31. The forming platform 33 and the second docking port 32 form the second heating sealing cavity 35, which is connected to the first heating sealing cavity 11 to form a printing forming space. This creates an adjustable printing forming space, effectively reducing the space requiring heating during the printing process.

[0053] As an optional solution in this embodiment, the molding platform 33 is covered with a heat insulation layer to significantly improve the thermal stability of the printing molding space.

[0054] The printing process of the aforementioned local printing heating architecture and 3D printing device based on a 3D printer includes:

[0055] S1: The printing assembly 1 is combined with the printing platform assembly 3 of the adaptively adjustable second heating sealing cavity 35 to form a printing and forming space;

[0056] S2: Preheat the printing space and its contents;

[0057] S3: Printing begins after the printing space and its contents reach the specified temperature;

[0058] S4: During the printing process, the feeding nozzle assembly 2 moves relative to the printing platform assembly 3 in space, extruding the molten printing material and depositing it at the designated position, and finally cooling and forming the printed part a;

[0059] S5: After printing is completed and extrusion stops, the printing assembly component 1 and the printing platform component 3 are slowly cooled inside, so that the printed material is cooled at a specified cooling rate to prevent warping.

[0060] S6: Remove print a until it has cooled to near room temperature or below the glass transition temperature of the material;

[0061] Further optimized printing process:

[0062] The preheating and cooling processes of the printing platform component 3 are carried out separately from the printing assembly component 1 to reduce the occupation of the printing assembly component 1 by the preheating machine cooling process and improve the utilization rate of the equipment.

[0063] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A localized printing heating architecture based on a 3D printer, characterized in that, include: Print assembly components; A printing platform assembly has a built-in adjustable forming platform, and the printing platform assembly forms an adjustable printing and forming space based on the forming platform and the printing assembly assembly; the printing assembly assembly has a first heating and sealing cavity; The printing platform assembly includes a base cylinder; the base cylinder forms a second heating and sealing cavity based on the forming platform, and the second heating and sealing cavity is connected to the first heating and sealing cavity to form an adjustable printing and forming space; the printing assembly also has a first docking port connected to the first heating and sealing cavity; the top of the base cylinder is provided with a second docking port; the forming platform and the second docking port form the second heating and sealing cavity; the second docking port is located directly below the first docking port, and the second docking port and the first docking port are respectively and detachably sealed and connected.

2. The local printing heating architecture based on a 3D printer according to claim 1, characterized in that, The molding platform is vertically slidably mounted inside the base cylinder via a lifting drive mechanism.

3. The local printing heating architecture based on a 3D printer according to claim 2, characterized in that, A sealing element is fixedly provided on the outer side of the molding platform; the sealing element is in contact with the inner wall of the base cylinder.

4. The local printing heating architecture based on a 3D printer according to claim 2, characterized in that, Also includes: The feeding nozzle assembly has its discharge end corresponding to the printing platform assembly.

5. The local printing heating architecture based on a 3D printer according to claim 4, characterized in that, The feeding nozzle assembly includes a feeding mechanism, a heating mechanism, and a nozzle structure connected to the discharge end of the feeding mechanism via the heating mechanism; the nozzle structure faces the first docking port; the nozzle structure is driven and assembled at the other end of the heating mechanism via a motion mechanism, or the nozzle structure and the heating mechanism are driven and assembled on the motion mechanism.

6. The local printing heating architecture based on a 3D printer according to claim 5, characterized in that, The feeding mechanism, the heating mechanism, and the nozzle structure are all located inside the first heating and sealing cavity.

7. The local printing heating architecture based on a 3D printer according to claim 1, characterized in that, The molding platform is fitted with a heat insulation layer.

8. A 3D printing apparatus, characterized in that, Including the localized printing heating architecture based on a 3D printer as described in any one of claims 1-7.

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