Ceramic 3D printing equipment

Abstract

The ceramic 3D printing equipment comprises a supporting plate assembly and a lifting mechanism, the supporting plate assembly comprises a mounting support, a heating piece, a first conductive piece and a supporting plate, the heating piece is located between the supporting plate and the mounting support, and the first conductive piece is electrically connected with the heating piece; the lifting mechanism is detachably connected with the supporting plate assembly, and a second conductive piece electrically connected with the first conductive piece is arranged on the lifting mechanism. The lifting mechanism is detachably connected with the supporting plate assembly, so that the supporting plate assembly can be replaced, disassembled and assembled greatly conveniently in the printing process, and the machine is convenient to maintain; the first conductive part is preset on the mounting bracket, the second conductive part is preset on the lifting mechanism, and when the mounting bracket is connected with the lifting mechanism, the second conductive part is in contact with the first conductive part, so that the heating piece emits heat, the problem of circuit plugging caused by replacement of the supporting plate assembly is avoided, the operation is simple, inclination is not easy to occur during positioning and matching, and the working efficiency is improved. And the tolerance rate is low, and the working efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of 3D printing, in particular to a ceramic 3D printing device. BACKGROUND

[0002] Ceramic materials have high strength, high hardness, good insulation, high temperature resistance and corrosion resistance, and have great application prospects in many fields such as aerospace, biomedical, automobile manufacturing and electronic industry. However, due to its high hardness and brittleness, it is difficult to form and process ceramic parts.

[0003] Traditional mechanical processing methods are difficult to manufacture ceramic parts with complex shape, and are prone to produce burrs and micro-cracks and other defects during processing. The existing ceramic forming methods such as dry forming, plastic forming and grouting forming can only process simple structures or require specific molds to prepare ceramic products, which cannot meet the growing market demand, so the new ceramic forming technology-ceramic 3D printing technology has developed rapidly.

[0004] The platen assembly in the ceramic 3D printing device in the related art is a work platform for the formed product, and is an important part inside the ceramic 3D printing device. The disassembly and maintenance of the platen assembly is time-consuming and laborious, and the circuit plug problem caused by replacement of the platen assembly is prone to occur. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a ceramic 3D printing device which can avoid the circuit plug problem caused by replacement of the platen assembly, is simple to operate, is not easy to tilt during positioning and cooperation, has low tolerance, and can improve work efficiency.

[0006] A ceramic 3D printing device comprises:

[0007] A platen assembly comprises a mounting bracket, a heating sheet arranged on the mounting bracket, a first conductive piece and a platen. The platen is connected to one end of the mounting bracket, and the heating sheet is located between the platen and the mounting bracket. The first conductive piece is electrically connected with the heating sheet. The first conductive piece is exposed from the mounting bracket.

[0008] A lifting mechanism is detachably connected with the platen assembly. The lifting mechanism can drive the platen assembly to lift. A second conductive piece is arranged on the lifting mechanism. The second conductive piece can be electrically connected with the first conductive piece.

[0009] In one embodiment, the platen is detachably connected with the mounting bracket, and a first accommodation space for accommodating the heating sheet is formed between the platen and the mounting bracket.

[0010] In one of the embodiments, the heating sheet is sealingly connected with the first accommodating space.

[0011] In one of the embodiments, the tray assembly further comprises a control module and a temperature detection module arranged on the mounting bracket, the temperature detection module is used for detecting the temperature on the heating sheet, and the control module is electrically connected with the temperature detection module and the heating sheet.

[0012] In one of the embodiments, the ceramic 3D printing device further comprises a control terminal, the control terminal is in communication connection with the control module, and the control terminal is electrically connected with the second conductive piece.

[0013] In one of the embodiments, the tray assembly further comprises a cover plate, the cover plate is detachably connected to an end of the mounting bracket away from the tray, and a second accommodating space for accommodating the control module is formed between the cover plate and the mounting bracket.

[0014] In one of the embodiments, the first conductive piece is arranged on the control module, and an accommodating groove for accommodating the first conductive piece is arranged on the outer side wall of the mounting bracket.

[0015] In one of the embodiments, a plurality of mesh holes are arranged on the tray, and the axial directions of the plurality of mesh holes are parallel to the lifting direction of the mounting bracket.

[0016] In one of the embodiments, a handle is arranged on the outer side wall of the mounting bracket.

[0017] In one of the embodiments, the first conductive piece comprises a copper sheet;

[0018] and / or, the second conductive piece comprises a conductive probe.

[0019] In the above scheme, by detachably connecting the lifting mechanism and the tray assembly, the replacement and disassembly of the tray assembly during printing can be greatly facilitated, and the maintenance of the machine is facilitated; by prearranging the first conductive piece on the mounting bracket and the second conductive piece on the lifting mechanism, when the mounting bracket and the lifting mechanism are connected, the second conductive piece contacts the first conductive piece, so that the heating sheet generates heat, avoiding the circuit plugging problem caused by the replacement of the tray assembly, the operation is simple, the inclination during positioning and cooperation is not easy, and the tolerance rate is low, which can improve the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 A structural schematic diagram of a ceramic 3D printing device shown in an embodiment of the present application.

[0022] Figure 2 A structural schematic diagram of a ceramic 3D printing device shown in an embodiment of the present application. Figure 1 An enlarged view of A in FIG. 1.

[0023] Figure 3 A structural schematic diagram of a ceramic 3D printing device shown in an embodiment of the present application.

[0024] Figure 4 A structural sectional view of a ceramic 3D printing device shown in an embodiment of the present application.

[0025] Explanation of reference signs

[0026] 10, ceramic 3D printing device; 100, pallet assembly; 110, mounting bracket; 120, heating sheet; 130, first conductive member; 140, pallet; 141, mesh hole; 150, control module; 160, cover plate; 170, handle; 200, lifting mechanism; 210, second conductive member; 220, mounting plate. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first" or "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0030] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0032] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0033] 3D printing technology, namely additive manufacturing technology, is a revolutionary advanced green intelligent manufacturing technology that has developed rapidly in recent years. It is a manufacturing technology based on the principle of dispersion and accumulation. It disperses the three-dimensional computer aided design (CAD) model of the part into discrete surfaces, discrete lines and discrete points in a certain way, and then uses physical or chemical means to accumulate these discrete surfaces, line segments and points into the shape of the part. 3D printing technology can automatically and quickly convert the designed three-dimensional CAD model into a prototype with certain structure and function or directly manufacture parts through the stacking forming method. The implementation of 3D printing technology can greatly expand the product creativity and innovation space; greatly shorten the new product development cycle and reduce the research and development cost; simplify the manufacturing process and improve the product quality and reliability; can manufacture some parts that cannot be processed by traditional process, and even support the implementation of personalized customization and other advanced innovation modes. Compared with traditional manufacturing methods, this technology has the advantages of short production cycle, high precision and low cost, and can flexibly change the design scheme to realize flexible production, and has a broad application prospect in the development of new products. At present, 3D printing technology is mainly applied to traditional manufacturing industry, medical industry, cultural relic protection industry, architectural design industry and accessory industry, and is widely used in the fields of aviation, aerospace, weapons, medical treatment, biology, archaeology, electronic products, artistic design, animation, etc.

[0034] Ceramic materials have high strength, high hardness, good insulation, high temperature resistance and corrosion resistance, and have great application prospects in many fields such as aerospace, biomedicine, automobile manufacturing and electronics. However, due to its high hardness and brittleness, it is difficult to form and process ceramic parts.

[0035] Traditional mechanical processing methods are difficult to manufacture ceramic parts with complex shapes, and are prone to produce burrs and micro-cracks and other defects during processing. The existing ceramic forming methods such as dry forming, plastic forming and grouting forming can only process simple structures or require the use of special molds to prepare ceramic products, which cannot meet the growing market demand, so a new ceramic forming technology-ceramic 3D printing technology has developed rapidly.

[0036] The platen assembly in the ceramic 3D printing equipment in the related art is a work platform for the formed product, and is an important part inside the ceramic 3D printing equipment. The disassembly and maintenance of the platen assembly are time-consuming and laborious, and the circuit plug problem caused by replacement of the platen assembly is prone to occur.

[0037] In order to solve the above problems, please refer to Figure 1 and Figure 2Embodiments of the present application relate to a ceramic 3D printing device 10, comprising a platen assembly 100 and a lifting mechanism 200, the lifting mechanism 200 is detachably connected with the platen assembly 100, and the lifting mechanism 200 is used to drive the platen assembly 100 to lift. By detachably connecting the lifting mechanism 200 with the platen assembly 100, the replacement and disassembly of the platen assembly 100 during the printing process can be greatly facilitated, and the maintenance of the machine is also facilitated.

[0038] Please refer to Figure 2 、 Figure 3 and Figure 4 , the platen assembly 100 comprises a mounting bracket 110, a heating sheet 120 arranged on the mounting bracket 110, a first conductive piece 130 and a platen 140, the platen 140 is connected to one end of the mounting bracket 110, and the heating sheet 120 is located between the platen 140 and the mounting bracket 110. The first conductive piece 130 is electrically connected with the heating sheet 120. The first conductive piece 130 is exposed to the mounting bracket 110. The second conductive piece 210 is arranged on the lifting mechanism 200, and the second conductive piece 210 can be electrically connected with the first conductive piece 130. Specifically, the mounting plate 220 is arranged on the lifting mechanism 200, and the second conductive piece 210 is protrudingly arranged on the mounting plate 220.

[0039] When the mounting bracket 110 is connected with the lifting mechanism 200, the second conductive piece 210 is arranged opposite to the first conductive piece 130, and the second conductive piece 210 is in contact with the first conductive piece 130, so that the second conductive piece 210 and the first conductive piece 130 can transmit electrical signals between each other. The first conductive piece 130 can transmit electrical signals to the heating sheet 120 to heat the heating sheet 120, and the heating sheet 120 is located between the platen 140 and the mounting bracket 110. After the heating sheet 120 is heated, heat can be transmitted to the platen 140.

[0040] By preinstalling the first conductive piece 130 on the mounting bracket 110 and preinstalling the second conductive piece 210 on the lifting mechanism 200, and when the mounting bracket 110 is connected with the lifting mechanism 200, the second conductive piece 210 is in contact with the first conductive piece 130, so that the heating sheet 120 generates heat. The circuit plugging problem caused by the replacement of the platen assembly 100 is avoided, the operation is simple, the inclination during positioning and cooperation is not easy, the tolerance rate is low, and the working efficiency can be improved.

[0041] Please refer to Figure 2 、 Figure 3 and Figure 4 According to some embodiments of the present application, the platen 140 and the mounting bracket 110 are detachably connected, and a first accommodating space for accommodating the heating sheet 120 is formed between the platen 140 and the mounting bracket 110.

[0042] Specifically, the first mounting hole is arranged on the support plate 140, the second mounting hole is arranged on the mounting bracket 110, the first fastener is arranged in the first mounting hole and is screwed with the second mounting hole, so as to fix the support plate 140 relative to the mounting bracket 110.

[0043] The first mounting groove is arranged on one side of the support plate 140 close to the mounting bracket 110, the second mounting groove is arranged on one side of the mounting bracket 110 close to the support plate 140, and the heating sheet 120 is clamped in the first mounting groove and the second mounting groove. The external contour of the heating sheet 120 is the same as the contour of the first mounting groove and the second mounting groove. More specifically, the first mounting groove is arranged in the middle of the support plate 140, and the second mounting groove is arranged in the middle of the mounting bracket 110.

[0044] By detachably connecting the support plate 140 and the mounting bracket 110, the maintenance of the support plate assembly 100 can be facilitated. By arranging the first accommodating space, the fixing of the heating sheet 120 can be achieved.

[0045] Please refer to Figure 2 , Figure 3 and Figure 4 According to some embodiments of the present application, the heating sheet 120 is sealingly connected with the first accommodating space, which can effectively prevent liquid from penetrating into the heating sheet 120 and damaging the heating sheet 120.

[0046] Specifically, a sealing member is arranged between the heating sheet 120 and the first accommodating space, and the sealing member is sealingly connected with the heating sheet 120 and the first accommodating space. More specifically, the sealing member is arranged on the periphery of the heating sheet 120, and the sealing member is sealingly connected with the first accommodating space. For example, the sealing member is a sealing ring.

[0047] Please refer to Figure 2 , Figure 3 and Figure 4 According to some embodiments of the present application, the support plate assembly 100 further comprises a control module 150 arranged on the mounting bracket 110 and a temperature detection module for detecting the temperature on the heating sheet 120, and the control module 150 is electrically connected with the temperature detection module and the heating sheet 120. For example, the control module 150 is used for automatic control, for example, the control module 150 is a PCB circuit board.

[0048] Specifically, the control module 150 is in communication connection with the temperature detection module, and the control module 150 is in control connection with the heating sheet 120. The temperature detection module detects the temperature on the heating sheet 120 in real time, and transmits the detected data to the control module 150. The control module 150 controls the current of the heating sheet 120, so as to realize the precise control of the temperature of the heating sheet 120. When the temperature on the heating sheet 120 detected by the temperature detection module is higher than the set value, the control module 150 controls the current of the heating sheet 120 to be smaller. When the temperature on the heating sheet 120 detected by the temperature detection module is lower than the set value, the control module 150 controls the current of the heating sheet 120 to be larger.

[0049] Referring to Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the present application, the ceramic 3D printing device 10 further comprises a control terminal, the control terminal is in communication connection with the control module 150, and the control terminal is in electrical connection with the second conductive part 210.

[0050] In this embodiment, the control module 150 is in communication connection with the temperature detection module, and the control module 150 is in electrical connection with the heating sheet 120. The control module 150 can transmit the signal detected by the temperature detection module to the control terminal, and the control terminal controls the current transmitted by the second conductive part 210, so as to realize the control of the current of the heating sheet 120, thereby realizing the precise control of the temperature of the heating sheet 120. In this embodiment, the control module 150 only plays a role of signal transmission and current transmission.

[0051] Referring to Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the present application, the tray assembly 100 further comprises a cover plate 160, the cover plate 160 is detachably connected to the end of the mounting bracket 110 away from the tray 140, and a second accommodation space for accommodating the control module 150 is formed between the cover plate 160 and the mounting bracket 110. Specifically, the cover plate 160 is detachably connected with the lifting mechanism 200. The mounting bracket 110 is further provided with a wire hole, so as to facilitate the electrical connection between the control module 150 and the heating sheet 120.

[0052] Specifically, the cover plate 160 is provided with a third mounting hole, and the mounting bracket 110 is provided with a fourth mounting hole. The second fastener is threaded through the third mounting hole and is in threaded connection with the fourth mounting hole, so as to realize the fixation of the cover plate 160 relative to the mounting bracket 110.

[0053] The third mounting groove is arranged on the side of the mounting bracket 110 close to the cover plate 160, and the control module 150 is clamped in the third mounting groove. The external contour of the control module 150 is the same as the contour of the third mounting groove. The cover plate 160 is arranged on the side of the mounting bracket 110 close to the cover plate 160 and the control module 150, so as to fix the control module 150.

[0054] The cover plate 160 is detachably connected with the mounting bracket 110, so that the maintenance of the tray assembly 100 is facilitated. The second accommodating space is arranged, so that the control module 150 is fixed.

[0055] Please refer to Figure 2 , Figure 3 and Figure 4 According to some embodiments of the present application, the first conductive member 130 is arranged on the control module 150, and the outer side wall of the mounting bracket 110 is provided with an accommodating groove for accommodating the first conductive member 130, so that the first conductive member 130 is exposed on the mounting bracket 110, and the connection with the second conductive member 210 is facilitated.

[0056] Please refer to Figure 2 , Figure 3 and Figure 4 According to some embodiments of the present application, the tray 140 is provided with a plurality of spaced-apart mesh holes 141, and the axial direction of the plurality of mesh holes 141 is parallel to the lifting direction of the mounting bracket 110. The mesh holes 141 penetrate the tray 140.

[0057] Please refer to Figure 2 , Figure 3 and Figure 4 According to some embodiments of the present application, the outer side wall of the mounting bracket 110 is provided with a handle 170, so that the tray assembly 100 is convenient to hold.

[0058] Please refer to Figure 2 , Figure 3 and Figure 4 Figure 2 Figure 3 Figure 4 According to some embodiments of the present application, the first conductive member 130 is made of copper sheet. The second conductive member 210 is made of conductive probe.

[0059] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0060] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A ceramic 3D printing apparatus, characterized by, include: A tray assembly includes a mounting bracket, a heating element disposed on the mounting bracket, a first conductive element, and a tray. The tray is connected to one end of the mounting bracket, and the heating element is located between the tray and the mounting bracket. The first conductive element is electrically connected to the heating element, and the first conductive element is exposed outside the mounting bracket. A lifting mechanism is provided, which is detachably connected to the pallet assembly. The lifting mechanism can drive the pallet assembly to rise and fall. A second conductive element is provided on the lifting mechanism, which can be electrically connected to the first conductive element.

2. The ceramic 3D printing apparatus according to claim 1, characterized in that The tray is detachably connected to the mounting bracket, and a first accommodating space for accommodating the heating element is formed between the tray and the mounting bracket.

3. The ceramic 3D printing apparatus according to claim 2, characterized in that The heating element is sealed to the first accommodating space.

4. The ceramic 3D printing apparatus according to claim 1, characterized in that, The tray assembly also includes a control module and a temperature detection module disposed on the mounting bracket. The temperature detection module is used to detect the temperature on the heating element, and the control module is electrically connected to the temperature detection module and the heating element.

5. The ceramic 3D printing apparatus according to claim 4, characterized in that The ceramic 3D printing equipment also includes a control terminal, which is communicatively connected to the control module and electrically connected to the second conductive component.

6. The ceramic 3D printing apparatus according to claim 4, characterized in that The tray assembly further includes a cover plate, which is detachably connected to the end of the mounting bracket away from the tray, and a second accommodating space for accommodating the control module is formed between the cover plate and the mounting bracket.

7. The ceramic 3D printing apparatus according to claim 4, characterized in that The first conductive element is disposed on the control module, and the outer wall of the mounting bracket is provided with a receiving groove for accommodating the first conductive element.

8. The ceramic 3D printing apparatus according to claim 1, characterized in that, The tray has a number of spaced mesh holes, and the axial direction of the mesh holes is parallel to the lifting direction of the mounting bracket.

9. The ceramic 3D printing apparatus according to claim 1, characterized in that, A handle is provided on the outer wall of the mounting bracket.

10. The ceramic 3D printing apparatus according to claim 1, characterized in that, The first conductive element includes a copper sheet; And / or, the second conductive element includes a conductive probe.

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