3D printing substrate

Abstract

The utility model discloses a 3D printing substrate which comprises a substrate body and a bearing plate, the bearing plate is detachably connected with the substrate body, a cooling cavity is defined between the bearing plate and the substrate body, and a cooling medium is introduced into the cooling cavity to cool the bearing plate. The bearing plate is prevented from being in a high-temperature state, so that a printing material is quickly cured, the stability of a printed object is improved, printing errors are avoided, the printing quality of the printed object is improved, thermal deformation of the substrate is reduced, the substrate is protected, and the service life of the substrate is prolonged; and a detachable structure of the base plate and the bearing plate is adopted, so that after the bearing plate is damaged, the base plate does not need to be replaced, different bearing plates can be replaced according to different printing materials, and the production and manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and particularly relates to a 3D printing substrate. Background Technique

[0002] 3D printing technology is a new manufacturing technology based on a three-dimensional digital model, which forms materials layer by layer by means of heating or photocuring. The more popular types of 3D printing technology include: stereolithography (SLA / DLP), fused deposition modeling (FDM), selective laser sintering (SLS), selective laser melting (SLM), etc. When 3D printing, a substrate is required to support the printed product, and the product is removed from the substrate after printing. The quality requirements of the substrate are also related to the quality of the later product. The flatness of the substrate seriously affects the size of the product and the quality during the printing process. In continuous production and practice, an adjustable floor has been made, and the adjusting auxiliary nuts are used to adjust the uneven places to the best to ensure the product quality. Patent application No. 202310703369.8 discloses that the 3D printing substrate has a powder-bearing surface, and the powder-bearing surface includes a first surface portion and a second surface portion, and the melting point of the second surface portion is higher than that of the first surface portion; the 3D printing substrate includes: a first substrate, the exposed powder-bearing surface of the first substrate is the first surface portion; a second substrate, disposed on the first substrate, the powder-bearing surface of the second substrate is the second surface portion, and the melting point of the second substrate is higher than that of the first substrate; the second substrate is detachably fixed on the first substrate; only part of the powder-bearing metal surface of the 3D printing substrate is made of a high-melting-point metal material, and it is used in the printing operation area during printing, thereby avoiding replacing the original substrate with a high-melting-point metal substrate and effectively controlling the cost; the substrate surface of the printing operation area can be made of the same material as the metal to be printed, thereby effectively avoiding the problem of separation between the printed part and the substrate during the printing process. At the same time, the setting position and shape of the second surface portion can be flexibly set according to the printing operation requirements, expanding the use scenarios of the substrate.

[0003] However, during the 3D printing process, the printing material is ejected from the nozzle of the printer at a relatively high temperature. During long-term use, the substrate is prone to thermal deformation, which affects the accuracy and quality of subsequent printing, accelerates the aging and damage of the substrate, and also affects the stability of the printed object during the printing process, increases the probability of printing errors, and affects the printing quality of the printed object. Therefore, this application proposes a 3D printing substrate. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a 3D printing substrate, which can effectively solve the problems in the background technique.

[0005] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A 3D printing substrate includes a substrate and a receiving plate. The receiving plate is detachably connected to the substrate, and a cooling cavity is formed between the receiving plate and the substrate. A cooling medium is introduced into the cooling cavity to cool the receiving plate.

[0006] Preferably, a groove is provided on the upper surface of the substrate, and a support block is fixedly connected in the groove. The receiving plate is placed in the groove and is supported by the support block. The receiving plate seals the notch of the groove to form a cooling cavity.

[0007] Preferably, a first magnet is embedded in the support block, and a magnetic component is embedded in the receiving plate. The first magnet and the magnetic component are attracted to each other.

[0008] Preferably, handles are fixedly connected to both sides of the receiving plate.

[0009] Preferably, a plurality of partition strips are provided in the groove. The partition strips are in contact with the receiving plate. One end of the partition strip has a gap with the groove, and the gaps between adjacent partition strips are staggered to form a serpentine flow channel in the groove.

[0010] Preferably, a first pipe and a second pipe are respectively provided at the beginning and end of the serpentine flow channel.

[0011] Preferably, the receiving plate is a heat-conducting plate, and a heat-dissipating coating is provided on the upper surface of the receiving plate.

[0012] Preferably, fixing threaded holes and adjusting threaded holes are provided at the four corners of the receiving plate.

[0013] Compared with the traditional technology, the beneficial effects produced by the present utility model are as follows: The present utility model cools the receiving plate by introducing a cooling medium into the cooling cavity, avoiding the receiving plate being in a high-temperature state, enabling the printing material to be quickly solidified, improving the stability of the printed object, avoiding printing errors, improving the printing quality of the printed object, reducing the thermal deformation of the substrate, protecting the substrate, and extending the service life of the substrate; and adopting a detachable structure of the substrate and the carrier plate. After the receiving plate is damaged, it is not necessary to replace the substrate, and different carrier plates can also be replaced according to different printing materials, reducing the production and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0015] Figure 1Schematic three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 Schematic exploded view of the overall structure of the present utility model;

[0017] Figure 3 is Figure 2 schematic view from another perspective of;

[0018] Figure 4 Schematic three-dimensional view of the substrate structure of the present utility model;

[0019] Figure 5 is Figure 4 planar schematic view of.

[0020] The markings in the figure are explained as follows:

[0021] 1. Substrate; 2. Carrier plate; 3. Tank body; 4. Support block; 5. First magnet; 6. Magnetic part; 7. Partition strip; 8. Gap; 9. First pipeline; 10. Second pipeline; 11. Heat dissipation coating; 12. Fixed threaded hole; 13. Adjusting threaded hole; 14. Handle. Detailed implementation manners

[0022] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] As Figures 1-5 , this embodiment provides a 3D printing substrate, including a substrate 1 and a carrier plate 2. The carrier plate 2 is detachably connected to the substrate 1. A cooling cavity is formed between the carrier plate 2 and the substrate 1. A cooling medium is introduced into the cooling cavity to cool the carrier plate 2. During 3D printing, the printed object falls onto the carrier plate 2, and a printing structure is formed on the carrier plate 2. At the same time, the cooling medium in the cooling cavity continuously cools the carrier plate 2 to prevent the carrier plate 2 from deforming due to high temperature.

[0025] The upper surface of the substrate 1 is provided with a groove body 3. A support block 4 is fixedly connected inside the groove body 3. The receiving plate 2 is placed inside the groove body 3 and the receiving plate 2 is supported and connected to the support block 4. The receiving plate 2 seals the notch of the groove body 3 to form a cooling cavity. In the connection structure between the substrate 1 and the support block 4, a detachable connection method is adopted. Specifically, a first magnet 5 is embedded and installed inside the support block 4, and a magnetic part 6 is embedded and installed inside the receiving plate 2. The first magnet 5 and the magnetic part 6 are attracted to each other. The magnetic part 6 is a magnet or an alloy material capable of being magnetized. When the receiving plate 2 is made of a metal material, the magnetic part 6 may not be installed, and the metal receiving plate 2 is directly attracted to the first magnet 5 to fix the receiving plate 2 by magnetic attraction. After the receiving plate 2 is attached to the support block 4, the upper surface of the receiving plate 2 is flush with the upper surface of the substrate 1. At the same time, handles 14 are fixedly connected to both sides of the receiving plate 2, which is convenient for lifting the receiving plate 2 and facilitates disassembly or replacement.

[0026] A number of partition strips 7 are arranged inside the groove body 3. The partition strips 7 are attached to the receiving plate 2. One end of the partition strip 7 has a gap 8 with the groove body 3, and the gaps 8 between adjacent partition strips 7 are arranged in a staggered manner to form a serpentine flow channel inside the groove body 3. The function of the partition strip 7 is on the one hand to support the receiving plate 2 to prevent the receiving plate 2 from bending and deforming, and on the other hand to extend the flow length of the cooling medium to achieve a better cooling effect. The start end and the end of the serpentine flow channel are respectively provided with a first pipe 9 and a second pipe 10. The first pipe 9 and the second pipe 10 are respectively the inlet and outlet of the cooling medium. The cooling medium is selected from cooling water or cold air.

[0027] The receiving plate 2 is a heat conducting plate, and a heat dissipation coating 11 is provided on the upper surface of the receiving plate 2 to enhance the heat dissipation ability and improve the heat dissipation effect of the receiving plate 2.

[0028] Fixing threaded holes 12 and adjusting threaded holes 13 are provided at the four corners of the receiving plate 2. A fixing bolt passes through the fixing threaded hole 12 and is fixedly connected to the support seat to fix the receiving plate 2. An adjusting bolt passes through the adjusting threaded hole 13 and abuts against the support seat to adjust the levelness of the substrate 1.

[0029] The working principle of the present utility model: By introducing a cooling medium into the cooling cavity to cool the receiving plate 2, the receiving plate 2 is prevented from being in a high temperature state, so that the printing material is quickly solidified, the stability of the printed object is improved, printing errors are avoided, the printing quality of the printed object is improved, the thermal deformation of the substrate 1 is reduced, the substrate 1 is protected, and the service life of the substrate 1 is extended; and a detachable structure of the substrate 1 and the carrier plate is adopted. After the receiving plate 2 is damaged, it is not necessary to replace the substrate 1, and different carrier plates can also be replaced according to different printing materials, reducing the production and manufacturing costs.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. The preferred embodiments of the present utility model are given in the drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structures made directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. A 3D printing substrate, comprising a substrate and a receiving plate, characterized in that: The receiving plate is detachably connected to the base plate, a cooling cavity is formed between the receiving plate and the base plate, and a cooling medium is introduced into the cooling cavity to cool the receiving plate.

2. A 3D printing substrate according to claim 1, characterized in that: A groove body is arranged on the upper surface of the substrate, a support block is fixedly connected in the groove body, the receiving plate is placed in the groove body and the receiving plate is supported and connected with the support block, and the receiving plate seals the notch of the groove body to form a cooling cavity.

3. A 3D printing substrate according to claim 2, characterized in that: A first magnet is embedded in the support block, a magnetic attraction component is embedded in the receiving plate, and the first magnet is attracted to the magnetic attraction component.

4. A 3D printing substrate according to claim 3, characterized in that: Handles are fixedly connected to both sides of the receiving plate.

5. A 3D printing substrate according to claim 2, characterized in that: A plurality of spacers are arranged in the trough body, the spacers are fitted with the receiving plate, a gap is left between one end of the spacer and the trough body, and the gaps between adjacent spacers are staggered, so as to form a serpentine flow channel in the trough body.

6. A 3D printing substrate according to claim 5, characterized in that: The starting end and the tail end of the serpentine flow channel are respectively provided with a first pipeline and a second pipeline.

7. A 3D printing substrate according to claim 1, characterized in that: The receiving plate is a heat conducting plate, and a heat dissipation coating is provided on the upper surface of the receiving plate.

8. The 3D printing substrate according to claim 1, characterized in that: The four corners of the receiving plate are provided with fixing threaded holes and adjusting threaded holes.

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