Supporting device and 3D printer

Abstract

The utility model relates to the technical field of 3D printing, aims to solve the technical problem of low operation reliability of some parts of elements mounted on a hot bed assembly, and provides a supporting device and a 3D printer. The supporting device comprises a supporting piece and a heat insulation piece. One side of the support is configured to be connected to a hot bed assembly. The heat insulation part is arranged on the side, away from the hot bed assembly, of the supporting part, a mounting position is arranged on the side, away from the supporting part, of the heat insulation part, and the mounting position is configured to be connected with a target part. The hot bed assembly has the beneficial effect that the protection effect on elements on the hot bed assembly is improved.

Description

TECHNICAL FIELD

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

[0002] Some existing heat bed assemblies of 3D printers are drivingly connected to a driving assembly. However, the heat bed assembly generates high heat during operation, which cannot guarantee the operation reliability of some components installed on the heat bed assembly. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a supporting device and a 3D printer to solve the technical problem of low operation reliability of some components installed on the heat bed assembly.

[0004] The present application provides a supporting device, comprising a supporting member and a heat insulation member. One side of the supporting member is configured to be connected to a heat bed assembly. The heat insulation member is arranged on the side of the supporting member away from the heat bed assembly, and the side of the heat insulation member away from the supporting member is provided with a mounting position configured to be connected to a target member.

[0005] The heat insulation member can have a heat insulation effect on the heat generated by the heat bed assembly, so as to reduce the heat conducted from the heat bed assembly to the mounting position, keep the temperature of the installation environment of the target member within an acceptable range, and greatly reduce the possibility of damage caused by high temperature of the target member, thereby prolonging the service life of the target member and ensuring the reliable operation of the target member. At the same time, since the heat insulation member is integrated with the mounting position, the compactness of the structure of the supporting device can be improved, and the space utilization rate can be improved.

[0006] In one possible implementation:

[0007] The supporting member is provided with an avoiding opening, the avoiding opening penetrates the supporting member along the thickness direction of the supporting member, and a receiving cavity is formed between the supporting member and the heat insulation member, the receiving cavity is configured to receive a first detection member, and the first detection member is configured to disconnect the circuit in the heat bed assembly when the temperature of the heat bed assembly is within a preset range.

[0008] In one possible implementation:

[0009] The supporting member is provided with an avoiding opening, the heat insulation member is further configured to be connected to a second detection member, the second detection member corresponds to the avoiding opening, and the second detection member is configured to detect the temperature of the heat bed assembly.

[0010] In one possible implementation:

[0011] The heat insulation member is provided with a mounting hole, the mounting hole penetrates the heat insulation member along the thickness direction of the heat insulation member, and the mounting hole is configured to correspond to the second detection member.

[0012] In a possible implementation,

[0013] The heat insulation member comprises a substrate portion and a first positioning portion. One side of the substrate portion is connected to the support member. The side of the substrate portion away from the support member forms the mounting position. The first positioning portion is arranged at the mounting position. The first positioning portion is configured to position the target member on the substrate portion.

[0014] In a possible implementation,

[0015] The first positioning portion comprises a first positioning column and a support side portion. The support side portion is connected to the side of the first positioning column. The first positioning column is configured to be positioned in cooperation with the target member. The support side portion is configured to abut against the target member.

[0016] In a possible implementation,

[0017] The heat insulation member comprises a substrate portion and a connecting portion. One side of the substrate portion is connected to the support member. The connecting portion is connected to the side of the substrate portion away from the support member. The connecting portion is configured to be connected to the target member.

[0018] In a possible implementation,

[0019] The heat insulation member comprises a first connecting portion and a second connecting portion. The first connecting portion is spaced apart from the second connecting portion. The heat insulation member further comprises a first limiting portion, a second limiting portion, a third limiting portion, and a fourth limiting portion. The first limiting portion and the second limiting portion are both connected to the first connecting portion. The third limiting portion and the fourth limiting portion are both connected to the second connecting portion. The first limiting portion and the third limiting portion are configured to clamp both sides of the target member in a first direction. The second limiting portion and the fourth limiting portion are configured to clamp both sides of the target member in a second direction.

[0020] In a possible implementation,

[0021] The heat insulation member comprises a substrate portion and a second positioning portion. One side of the substrate portion is connected to the support member. The second positioning portion is connected to the side of the substrate portion away from the support member. The support member is provided with a third positioning portion close to one side of the heat insulation member. The third positioning portion cooperates with the second positioning portion to position the heat insulation member on the support member.

[0022] The application further provides a 3D printer comprising the foregoing support device, driving assembly, and hot bed assembly. The driving assembly is connected to one side of the support member of the support device. The hot bed assembly is connected to the other side of the support member of the support device. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Figure 1 The structural schematic diagram of the 3D printer of one or more embodiments of the present application.

[0025] Figure 2 The exploded structural schematic diagram of the support device, the hot bed assembly, and the target piece of one or more embodiments of the present application.

[0026] Figure 3 The side view of the 3D printer of one or more embodiments of the present application.

[0027] Figure 4 The partial sectional view of the support device of one or more embodiments of the present application.

[0028] Figure 5 The structural schematic diagram of the support device and the target piece of one or more embodiments of the present application.

[0029] Figure 6 The structural schematic diagram of the heat insulation piece and the second detection piece of one or more embodiments of the present application.

[0030] Figure 7 The exploded structural schematic diagram of the heat insulation piece and the support piece of one or more embodiments of the present application.

[0031] Figure 8 The structural schematic diagram of the heat insulation piece and the target piece of one or more embodiments of the present application.

[0032] Main element symbol explanation:

[0033] 3D printer 200

[0034] Base 201

[0035] Frame 202

[0036] X-axis drive assembly 203

[0037] Drive assembly 204

[0038] Adapter 2041

[0039] Z-axis drive assembly 205

[0040] Hot bed assembly 206

[0041] First detection member 207

[0042] Second detection member 208

[0043] Temperature sensor 2081

[0044] Transmission Line 2082

[0045] Print head 209

[0046] Target parts 300

[0047] Circuit board 301

[0048] Electronic components 302

[0049] First direction X

[0050] Second direction Y

[0051] The third direction Z

[0052] Support device 100

[0053] Support member 10

[0054] Frame 11

[0055] Inner frame 12

[0056] Connection structure 13

[0057] The third positioning portion 14

[0058] The third positioning hole 14a

[0059] Thermal insulation 20

[0060] Board part 21

[0061] Plate and frame 211

[0062] Mounting plate 212

[0063] First plate section 2121

[0064] Second plate section 2122

[0065] First positioning portion 22

[0066] First positioning column 221

[0067] Support side 222

[0068] Connecting portion 23

[0069] First connection portion 231

[0070] Second connecting portion 232

[0071] First limiting portion 241

[0072] Second limiting portion 242

[0073] Third limiting portion 243

[0074] Fourth limiting portion 244

[0075] Second positioning portion 25

[0076] Second positioning column 25a

[0077] Fastener 30

[0078] Mounting position P

[0079] Avoidance opening K1

[0080] Mounting hole K2

[0081] First communication hole K21

[0082] Second communication hole K22

[0083] First positioning hole K3

[0084] Fixing hole K4

[0085] Second positioning hole K5

[0086] Accommodation cavity Q

[0087] First avoidance groove C1

[0088] Second avoidance groove C2

[0089] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0090] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0091] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0092] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0093] Some embodiments of the present application are described in detail. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0094] Referring to Figure 1 and Figure 2 , the present application provides a 3D printer 200, for example, a 3D printer 200 based on FDM technology.

[0095] The 3D printer 200 includes a base 201, a frame 202, a print head 209, a hot bed assembly 206, a support device 100, an X-axis drive assembly 203, a drive assembly 204, and a Z-axis drive assembly 205. Among them, the drive assembly 204 is a Y-axis drive assembly.

[0096] The frame 202 is fixedly connected to the base 201. The Z-axis drive assembly 205 is connected to the frame 202, the X-axis drive assembly 203 is connected to the Z-axis drive assembly 205, the print head 209 is connected to the X-axis drive assembly 203, the Y-axis drive assembly 204 is connected to the base 201, the Y-axis drive assembly 204 is drivingly connected to the support device 100, and the hot bed assembly 206 is connected to the side of the support device 100 away from the Y-axis drive assembly 204.

[0097] In this way, the relative displacement between the print head 209 and the hot bed assembly 206 in the first direction X, the second direction Y and the third direction Z can occur, so that the print head 209 can extrude the consumables on the hot bed assembly 206, and print a three-dimensional printed part.

[0098] In other embodiments, the movable direction of the hot bed assembly 206 and the print head 209 can also adopt other forms, which are not limited here. For example, the Z-axis drive assembly 205 can be provided on the base 201 and connected with the hot bed assembly 206. The print head 209 is connected to the frame 202 through the bidirectional drive structure of the first direction X and the second direction Y composed of the X-axis drive assembly 203 and the Y-axis drive assembly 204.

[0099] In some embodiments, referring to Figure 2 and Figure 3The support device 100 comprises a support 10 and a heat insulation member 20. One side of the support 10 is configured to be connected to the hot bed assembly 206. The heat insulation member 20 is arranged on the side of the support 10 away from the hot bed assembly 206, and the side of the heat insulation member 20 away from the support 10 is provided with a mounting position P configured to be connected to the target member 300.

[0100] In this way, the heat insulation member 20 can have a heat insulation effect on the heat generated by the hot bed assembly 206, so as to reduce the heat conducted by the hot bed assembly 206 to the mounting position P, keep the installation environment temperature of the target member 300 within an acceptable range, greatly reduce the possibility of damage of the target member 300 due to excessively high temperature, thereby prolonging the service life of the target member 300 and ensuring the reliable work of the target member 300. At the same time, since the heat insulation member 20 is integrated with the mounting position P, by connecting the target member 300 to the mounting position P, the compactness of the structure of the support device 100 can be improved, and the space utilization of the base 201 can be improved.

[0101] In some embodiments, referring to Figure 2 The target member 300 comprises a circuit board 301 and an electronic element 302. The circuit board 301 is connected to the mounting position P and spaced apart from the heat insulation member 20. The electronic element 302 is connected to the surface of the circuit board 301 close to the heat insulation member 20. In this way, the electronic element 302 will not collide with the Y-axis drive assembly 204, and the protection of the electronic element 302 can be improved.

[0102] In some embodiments, the target member 300 can be configured as a sensor assembly, which can be configured to detect the flatness of the hot bed assembly 206, so as to send a signal to the controller (not shown in the figure) of the 3D printer 200, so that the controller performs a leveling operation of the hot bed assembly 206 after receiving the signal, so that the hot bed assembly 206 remains flat and the printing quality is improved. The target member 300 can also be configured as a vibration compensation plate. The vibration compensation plate is configured to detect the natural frequency of the support device 100 and / or the hot bed assembly 206, so as to perform an operation of suppressing the natural frequency according to the natural frequency, so as to reduce the possibility of resonance of the hot bed assembly 206, and thus reduce the vibration marks on the surface of the three-dimensional printed part caused by the resonance, and improve the printing quality. The specific configuration of the target member 300 can be set according to actual needs, which is not limited in the present embodiment.

[0103] In some embodiments, referring to Figure 3 The 3D printer 200 further comprises an adapter 2041. The adapter 2041 is connected between the Y-axis drive assembly 204 and the heat insulation member 20. The adapter 2041 is spaced apart from the heat insulation member 20, and the target member 300 is mounted between the adapter 2041 and the heat insulation member 20. In this way, installation space can be further provided for the target member 300, and a protection effect can be provided.

[0104] In some embodiments, referring to Figure 4 The support 10 is provided with a clearance K1 penetrating the support 10 along the thickness direction of the support 10, and a receiving cavity Q is formed between the clearance K1 and the heat insulation member 20, which is configured to receive the first detection member 207 configured to disconnect the circuit in the hot bed assembly 206 when the temperature of the hot bed assembly 206 is within a preset range. In this way, the clearance K1 can provide a larger installation space for the first detection member 207, and the heat insulation member 20 can also protect the first detection member 207 from being broken due to collision, etc., to ensure the reliable operation of the first detection member 207. The temperature of the hot bed assembly 206 is detected by the first detection member 207, and when the temperature of the hot bed assembly 206 is within a preset range, the first detection member 207 automatically disconnects the circuit in the hot bed assembly 206 to stop the heating of the hot bed assembly 206, thereby achieving the over-temperature protection effect and further ensuring the protection of the target piece 300. The preset range can be set to a range greater than a preset value. The preset value and the preset range can be determined according to actual needs.

[0105] In some embodiments, the first detection member 207 includes a thermal fuse. The thermal fuse is connected to the internal circuit of the hot bed assembly 206, and is configured to break when the temperature of the hot bed assembly 206 is within a preset range, so as to disconnect the internal circuit of the hot bed assembly 206, thereby stopping the heating of the hot bed assembly 206. Especially in the case where the controller cannot control the operation of the hot bed assembly 206, the thermal fuse can achieve reliable insurance effect. The preset range can be set according to actual needs.

[0106] In other embodiments, the first detection member 207 can also be a temperature detector electrically connected to the controller to send a signal to the controller when the detected temperature reaches a preset range, and the controller controls the hot bed assembly 206 to stop working.

[0107] In other embodiments, the first detection member 207 can also be configured to detect the temperature at the installation position P, so as to obtain the ambient temperature of the target piece 300. In this way, the controller of the 3D printer 200 can control the switching or heating intensity of the hot bed assembly 206 according to the ambient temperature of the target piece 300, so as to greatly reduce the possibility of over-heating damage of the target piece 300.

[0108] In some embodiments, referring to Figure 5 and Figure 6 The heat insulation member 20 includes a base plate portion 21. The base plate portion 21 includes a plate frame 211 and a mounting plate 212. The base plate portion 21 is provided with a mounting hole K2 penetrating the base plate portion 21 along the thickness direction of the base plate portion 21. The mounting plate 212 is connected to the inner side of the plate frame 211. In combination with Figure 7The mounting hole K2 includes a first communication hole K21 and a second communication hole K22. The first communication hole K21 is located on one side of the second communication hole K22. The first detection member 207 corresponds to the mounting plate 212 to improve the protection of the first detection member 207 and prevent accidental breakage due to impact. Here, the first detection member 207 corresponds to the mounting plate 212 means that the orthographic projection of the first detection member 207 on the mounting plate 212 is located on the mounting plate 212. The second communication hole K22 is formed between the mounting plate 212 and the plate frame 211. The mounting plate 212 is arranged on the side of the plate frame 211 away from the support member 10, and the side of the mounting plate 212 away from the support member 10 forms the mounting position P. Here, the mounting plate 212, the base plate portion 21, and the support member 10 form the receiving cavity Q (see Figure 4 ).

[0109] In some embodiments, referring to Figure 5 and Figure 6 , the 3D printer 200 further includes a second detection member 208. The second detection member 208 is arranged corresponding to the avoidance opening K1, and the second detection member 208 is configured to detect the temperature of the hot bed assembly 206 to control the operating power of the hot bed assembly 206. Here, the second detection member 208 corresponds to the avoidance opening K1 means that the orthographic projection of the second detection member 208 on the avoidance opening K1 is located inside the avoidance opening K1.

[0110] In this way, the controller can increase or decrease the operating power of the hot bed assembly 206 according to the temperature required by the printing process, the maximum temperature that the target piece 300 can withstand, and the temperature detected by the second detection member 208, to ensure the smooth progress of the printing process and the protection of the target piece 300. The second detection member 208 can be configured as a temperature sensor 2081 such as a thermistor.

[0111] In some embodiments, referring to Figure 7 , the heat insulation member 20 is provided with a mounting hole K2, the mounting hole K2 penetrates the heat insulation member 20 along the thickness direction of the heat insulation member 20, and the mounting hole K2 is configured to correspond to the second detection member 208. Here, the second communication hole K22 of the mounting hole K2 corresponds to the second detection member 208. In this way, the second communication hole K22 can avoid the temperature sensor 2081 being arranged on the inside of the heat insulation member 20, so as to avoid the temperature sensor 2081 being affected by the ambient temperature, thereby improving the detection accuracy of the temperature of the hot bed assembly 206. The second communication hole K22 corresponds to the second detection member 208 means that the orthographic projection of the second detection member 208 on the second communication hole K22 is located inside the second communication hole K22.

[0112] In some embodiments, referring to Figure 6The second detection member 208 includes a temperature sensor 2081 and a transmission line 2082. The temperature sensor 2081 is fixedly arranged on the heat insulation member 20. The transmission line 2082 is connected with the temperature sensor 2081 and is used for connecting to the controller to transmit signals between the temperature sensor 2081 and the controller. In other embodiments, the temperature sensor 2081 and the controller can also transmit signals through a wireless signal transmission mode. The temperature sensor 2081 can be configured as a thermistor.

[0113] In some embodiments, the temperature sensor 2081 is arranged corresponding to the second communication hole K22 to realize separate installation of the second detection member 208 and the first detection member 207 and ensure independent operation of the two. The temperature sensor 2081 corresponding to the second communication hole K22 means that the orthographic projection of the temperature sensor 2081 relative to the second communication hole K22 is located inside the second communication hole K22. The temperature sensor 2081 can be accommodated in the second communication hole K22.

[0114] In some embodiments, referring to Figure 6 The mounting plate 212 includes a first plate segment 2121 and a second plate segment 2122. The first plate segment 2121 is connected to the base plate part 21 and covers the first communication hole K21 (see Figure 7 ). The second plate segment 2122 is bently connected to the first plate segment 2121, both ends of the length direction of the second plate segment 2122 are connected to the base plate part 21, and the second plate segment 2122 is located between the first communication hole K21 and the second communication hole K22. The second detection member 208 is fixedly arranged on the second plate segment 2122. In this way, the second plate segment 2122 not only provides a mounting position for the second detection member 208, but also can isolate the first communication hole K21 and the second communication hole K22.

[0115] In other embodiments, the second detection member 208 can also be fixedly installed on the surface of the heat bed assembly 206 to realize more accurate temperature detection effect. Therefore, in the present embodiment, the mounting position of the second detection member 208 can be adjusted according to actual needs.

[0116] In some embodiments, referring to Figure 6 and Figure 8 The plate frame 211 is provided with a first avoiding groove C1. The first avoiding groove C1 is arranged on the surface of the plate frame 211 away from the support member 10 and is recessed in the direction close to the support member 10. The first avoiding groove C1 is used for avoiding at least one electronic element 302 of the target member 300.

[0117] In some embodiments, referring to Figure 6The plate frame 211 is further provided with a second avoiding groove C2. The second avoiding groove C2 is arranged on the surface of the plate frame 211 close to the support 10 and is recessed in the direction away from the support 10. The second avoiding groove C2 is communicated with the second communication hole K22 and is configured to allow the transmission line 2082 of the second detection member 208 to pass through. In addition, the recessed directions of the first avoiding groove C1 and the second avoiding groove C2 are different, which can improve the strength of the plate frame 211. In other embodiments, the recessed direction of the second avoiding groove C2 can also be the same as that of the first avoiding groove C1.

[0118] In some embodiments, referring to Figure 8 The heat insulation member 20 further comprises a first positioning part 22. One side of the substrate part 21 is connected to the support 10, and the first positioning part 22 is connected to the mounting position P (i.e. the surface of the mounting plate 212 away from the support 10). The first positioning part 22 is configured to position the target member 300 on the substrate part 21. Through the first positioning part 22, the target member 300 can be connected to the preset position of the substrate part 21, so that the mounting position of the target member 300 relative to the substrate part 21 is accurate, the automatic installation efficiency of the target member 300 is improved, and it is ensured that the target member 300 will not interfere with other elements after being connected to the substrate part 21 at the mounting position P. In this way, the first positioning part 22 can realize the positioning and installation of the target member 300 at the mounting position P.

[0119] In some embodiments, referring to Figure 8 The target member 300 is provided with a first positioning hole K3. The first positioning hole K3 penetrates the circuit board 301. The first positioning part 22 extends into the first positioning hole K3 to realize the positioning of the target member 300 at the mounting position P. In other embodiments, the first positioning part 22 can be arranged on the target member 300, and the first positioning hole K3 can be arranged on the substrate part 21.

[0120] In some embodiments, referring to Figure 8 The first positioning part 22 comprises a first positioning column 221 and a support side part 222. The first positioning column 221 is configured to be positioned and matched with the target member 300, and the support side part 222 is connected to the side surface of the first positioning column 221 and is configured to abut against the target member 300. In this way, the first positioning part 22 can simultaneously realize the functions of positioning and installing the target member 300 and supporting the target member 300, thereby improving the installation reliability of the target member 300.

[0121] In some embodiments, referring to Figure 8The support side 222 supports the circuit board 301 of the target piece 300, so that a gap is formed between the circuit board 301 and the base plate part 21 of the heat insulation piece 20, and the electronic element 302 of the target piece 300 is located between the circuit board 301 and the base plate part 21, thereby improving the protection of the target piece 300. In addition, the gap between the circuit board 301 and the base plate part 21 can further slow down the heat propagation and reduce the heat received by the target piece 300.

[0122] In some embodiments, referring to Figure 8 The number of support sides 222 is multiple. The multiple support sides 222 surround the circumferential side of the first positioning column 221. The first positioning column 221 extends into the first positioning hole K3, and the circuit board 301 is supported by the multiple support sides 222.

[0123] In some embodiments, referring to Figure 8 The heat insulation piece 20 further comprises a connecting part 23. One side of the base plate part 21 is connected to the support piece 10, and the connecting part 23 is connected to the side of the base plate part 21 away from the support piece 10. The connecting part 23 is configured to be connected to the target piece 300. The target piece 300 is connected to the heat insulation piece 20 at the mounting position P through the connecting part 23. In this way, the target piece 300 is stably connected and mounted on the base plate part 21.

[0124] The base plate part 21 and the connecting part 23 can be connected by various fastening structures such as screws, pins or buckles.

[0125] In some embodiments, referring to Figure 8 The heat insulation piece 20 comprises a first connecting part 231 and a second connecting part 232, and the first connecting part 231 is spaced apart from the second connecting part 232. The heat insulation piece 20 further comprises a first limiting part 241, a second limiting part 242, a third limiting part 243 and a fourth limiting part 244. The first limiting part 241 and the second limiting part 242 are connected to the first connecting part 231, and the third limiting part 243 and the fourth limiting part 244 are connected to the second connecting part 232. The first limiting part 241 and the third limiting part 243 are configured to clamp both sides of the target piece 300 along the length direction thereof, and the second limiting part 242 and the fourth limiting part 244 are configured to clamp both sides of the target piece 300 along the width direction thereof. The target piece 300 is connected to the heat insulation piece 20 at the mounting position P through the first connecting part 231 and the second connecting part 232. In this way, the target piece 300 is limited in the horizontal direction by the first limiting part 241, the second limiting part 242, the third limiting part 243 and the fourth limiting part 244, so as to improve the connection stability of the target piece 300 on the heat insulation piece 20.

[0126] In some embodiments, the first connecting portion 231 is arranged on the mounting plate 212, and the second connecting portion 232 is arranged on the plate frame 211. The mounting positions of the first connecting portion 231 and the second connecting portion 232 can be adjusted according to actual needs.

[0127] In other embodiments, the first limiting portion 241, the second limiting portion 242, the third limiting portion 243, and the fourth limiting portion 244 can also be arranged on the base plate portion 21 at intervals with the first connecting portion 231 and the second connecting portion 232.

[0128] In some embodiments, referring to Figure 7 , the heat insulation piece 20 further comprises a second positioning portion 25 connected to the side of the base plate portion 21 away from the support 10. The side of the support 10 close to the heat insulation piece 20 is provided with a third positioning portion 14, which cooperates with the second positioning portion 25 to position the heat insulation piece 20 on the support 10. In this way, the accurate installation of the heat insulation piece 20 on the support 10 is ensured.

[0129] In some embodiments, referring to Figure 7 , the second positioning portion 25 is a second positioning column 25a, and the third positioning portion 14 is a third positioning hole 14a provided in the inner frame 12 of the support 10. The second positioning column 25a extends into the third positioning hole 14a to achieve accurate installation of the heat insulation piece 20 on the inner frame 12. In other embodiments, the second positioning portion 25 can be configured as a hole structure, and the third positioning portion 14 can be configured to cooperate with the hole structure to position the heat insulation piece 20 on the support 10.

[0130] In some embodiments, the number of second positioning portions 25 is multiple, and the number of third positioning portions 14 is multiple. The number of second positioning portions 25 is the same as the number of third positioning portions 14. Each of the multiple second positioning portions 25 corresponds to one of the multiple third positioning portions 14.

[0131] In some embodiments, referring to Figure 7 , the support 10 comprises an outer frame 11, an inner frame 12, and a plurality of connecting structures 13. The inner frame 12 is arranged on the inner side of the outer frame 11, and the inner frame 12 and the outer frame 11 are connected by the plurality of connecting structures 13. The plurality of connecting structures 13 are distributed along the circumference of the inner frame 12. The heat insulation piece 20 is connected to the inner frame 12. The avoiding opening K1 is provided in the inner frame 12.

[0132] In some embodiments, the inner frame 12 and the outer frame 11 are both connected to the heat bed assembly 206. In this way, the inner frame 12, the outer frame 11, and the plurality of connecting structures 13 can provide uniform and stable support for the heat bed assembly 206, so that the surface of the heat bed assembly 206 carrying the consumables remains flat.

[0133] The above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, and although the present application is explained in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A support device, characterized in that, The support device comprises: a support configured to be connected to a hot bed assembly on one side thereof; a heat insulation member provided on the side of the support away from the hot bed assembly, the heat insulation member being provided with a mounting position on the side thereof away from the support, the mounting position being configured to be connected to a target member.

2. The support device according to claim 1, wherein: the support is provided with a clearance opening penetrating through the support along the thickness direction of the support, and a receiving cavity is formed between the support and the heat insulation member, the receiving cavity being configured to receive a first detection member configured to disconnect the circuit in the hot bed assembly when the temperature of the hot bed assembly is within a preset range.

3. The support device according to claim 1, wherein: the support is provided with a clearance opening, and the heat insulation member is further configured to be connected to a second detection member corresponding to the clearance opening, the second detection member being configured to detect the temperature of the hot bed assembly.

4. The support device according to claim 3, wherein: the heat insulation member is provided with a mounting hole penetrating through the heat insulation member along the thickness direction of the heat insulation member, the mounting hole being configured to correspond to the second detection member.

5. The support device according to claim 1, wherein: the heat insulation member comprises a base plate portion and a first positioning portion, one side of the base plate portion is connected to the support, and the side of the base plate portion away from the support is formed into the mounting position, the first positioning portion is provided on the mounting position, and the first positioning portion is configured to position the target member on the base plate portion.

6. The support device according to claim 5, wherein: the first positioning portion comprises a first positioning column and a support side portion, the support side portion is connected to the side surface of the first positioning column, the first positioning column is configured to be positioned and matched with the target member, and the support side portion is configured to abut against the target member.

7. The support device according to claim 1, wherein: the heat insulation member comprises a base plate portion and a connecting portion, one side of the base plate portion is connected to the support, and the connecting portion is connected to the side of the base plate portion away from the support, and the connecting portion is configured to be connected to the target member.

8. The support device according to claim 7, wherein: the heat insulation member comprises a first connecting portion and a second connecting portion, the first connecting portion is spaced apart from the second connecting portion; the heat insulation member further comprises a first limiting portion, a second limiting portion, a third limiting portion and a fourth limiting portion, the first limiting portion and the second limiting portion are both connected to the first connecting portion, and the third limiting portion and the fourth limiting portion are both connected to the second connecting portion; the first limiting portion and the third limiting portion are configured to clamp both sides of the target member along the length direction thereof, and the second limiting portion and the fourth limiting portion are configured to clamp both sides of the target member along the width direction thereof.

9. The support device according to claim 1, wherein: The heat insulation piece comprises a base plate part and a second positioning part, one side of the base plate part is connected to the support piece, and the second positioning part is connected to the side of the base plate part away from the support piece; The support piece is provided with a third positioning part on the side close to the heat insulation piece, and the third positioning part cooperates with the second positioning part to position the heat insulation piece on the support piece.

10. A 3D printer characterized by, Comprise: The support device as claimed in any one of claims 1 to 9; A driving assembly connected to one side of the support piece of the support device; A heat bed assembly connected to the other side of the support piece of the support device.

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