Mounting assembly and 3D printer

Abstract

The utility model relates to the technical field of 3D printing, aims to solve the technical problem that some existing 3D printers are low in printing quality, and provides a mounting assembly and a 3D printer. The mounting assembly is used for the 3D printer, the 3D printer comprises a rack and a printing head, the printing head is movably connected to the rack, the printing head is configured to receive and extrude consumables, the printing head is connected with a cable, and the mounting assembly comprises a main body part and a cable clamping part. The main body part is configured to be arranged on the rack, a communicating hole is formed in the main body part, the communicating hole penetrates through the main body part, and the communicating hole is configured to guide consumables to the printing head. The wire clamping part is connected to the main body part and is used for clamping a cable. The beneficial effect of the utility model is that the printing quality is improved.

Description

Technical Field

[0001] The present application relates to the field of 3D printing technology, and more specifically, to a mounting assembly and a 3D printer. Background Art

[0002] When a known 3D printer is working, the print head needs to move in all directions. In this way, the consumables or cables connected to the print head will move with the print head. In some cases, the moving consumables or cables will interfere with the printing action of the print head and cause a decrease in print quality. Utility Model Content

[0003] This application provides an installation component and a 3D printer to solve the technical problem of low printing quality of some existing 3D printers.

[0004] The present application provides a mounting assembly for a 3D printer, the 3D printer comprising a frame and a print head, the print head being movably connected to the frame and configured to receive and extrude consumables, the print head being connected to a cable, and the mounting assembly comprising a main body and a cable clamp. The main body is configured to be mounted on the frame and has a communication hole extending therethrough, the communication hole being configured to guide the consumables to the print head; the cable clamp is connected to the main body and is configured to clamp the cable.

[0005] When the 3D printer is in operation, consumables from the consumable storage device pass through the communication hole and are delivered to the print head. The movement of the print head relative to the frame causes the cable and consumables to move and pull in three-dimensional space. In this embodiment, a portion of the cable is clamped by the cable clamping portion, thereby maintaining it fixed to the main body and located at the position where the mounting assembly is mounted on the frame. A portion of the consumables is restrained by the communication hole and located at the position where the mounting assembly is mounted on the frame. This restraint reduces the pulling force on the cable and consumables between the mounting assembly and the print head, and reduces the pulling force on the cable and consumables between their starting points and the mounting assembly. This keeps the pulling and floating movement of the cable and consumables within a relatively small range, ensuring the safety of the cable's movement driven by the print head and the stability of the consumables' delivery. Furthermore, since neither the cable nor the consumables experience significant drifting or deflection, they will not collide with the workpiece being printed by the print head, preventing the cable and consumables from damaging the workpiece and ensuring the quality of the workpiece.

[0006] In one possible implementation:

[0007] The mounting assembly also includes a guide portion, which is detachably connected to the main body portion. The guide portion is provided with a guide hole, which is connected to the connecting hole. The guide hole is constructed to allow the consumable material to pass through, and at least a portion of the guide portion is accommodated in the connecting hole.

[0008] In one possible implementation:

[0009] The guide portion includes a connector and a feed tube, the connector is fitted into the main body, one end of the feed tube is passed through the connector and defines the guide hole, and the other end of the feed tube is used to connect to the print head to transport the consumables to the print head.

[0010] In one possible implementation:

[0011] The mounting assembly further includes a locking member, which is spaced apart from the main body and is used for fixedly connecting the cable and the feeding tube.

[0012] In one possible implementation:

[0013] The connecting hole includes a guide section and a conveying section that are connected to each other. One end of the guide part is accommodated in the conveying section, and the other end of the guide part extends in a direction away from the guide section. The inner diameter of the guide section gradually decreases in a direction approaching the conveying section. The guide section is configured to guide the consumable material into the conveying section.

[0014] In one possible implementation:

[0015] The wire clamping portion is protruding from the surface of the main body, and the wire clamping portion and the surface of the main body define a wire clamping groove. The wire clamping portion is used to cooperate with the main body and clamp the cable to press the cable tightly against the main body.

[0016] In one possible implementation:

[0017] The mounting assembly also includes a first pivot portion, which is connected to the main body portion. The first pivot portion is configured to be rotatably connected to the frame so that the main body portion is configured to rotate around a rotation axis driven by the consumables and / or the cable.

[0018] In one possible implementation:

[0019] The mounting assembly further includes a first limiting portion connected to the main body portion. The first limiting portion is configured to cooperate with the frame to limit a rotation range of the main body portion relative to the frame.

[0020] The present application also provides a 3D printer comprising a frame, a print head, and the aforementioned mounting assembly. The print head is movably mounted on the frame, the print head is configured to receive and extrude consumables, and the print head is connected to a cable. The mounting assembly is mounted on the frame.

[0021] In one possible implementation:

[0022] The 3D printer further includes a transmission assembly, which is disposed on the frame. The print head is connected to the transmission assembly. The mounting assembly is disposed on the transmission assembly to move under the drive of the transmission assembly. The mounting assembly is connected to the transmission assembly. BRIEF DESCRIPTION OF THE 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 below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a 3D printer according to one or more embodiments of the present application.

[0025] Figure 2 for Figure 1 A local enlarged schematic diagram in .

[0026] Figure 3 This is a schematic diagram of the exploded structure of the installation assembly of one or more embodiments of the present application.

[0027] Figure 4 This is one of the cross-sectional views of a mounting assembly according to one or more embodiments of the present application.

[0028] Figure 5 This is a second cross-sectional view of the mounting assembly according to one or more embodiments of the present application.

[0029] Figure 6 This is a schematic structural diagram of the installation assembly of one or more embodiments of the present application from another angle.

[0030] Figure 7 This is a schematic structural diagram of the installation assembly of one or more embodiments of the present application from another angle.

[0031] Description of main component symbols:

[0032]

[0033] DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered therein. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered therein. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be an element centered therein. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" as used herein includes any and all combinations of one or more of the relevant listed items.

[0037] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.

[0038] See also Figure 1 , this embodiment provides a 3D printer 300, which can be specifically a 3D printing device based on FDM technology.

[0039] The 3D printer 300 includes a frame 309, a base 306, a build platform 305, a print head 302, a transmission assembly, a first optical axis 3071, a second optical axis 3072, and a consumables storage device 308. The frame 309 is mounted on the base 306. The transmission assembly includes an X-axis transmission assembly 3031, a Y-axis transmission assembly 3032, and a Z-axis transmission assembly 3033. The frame 309 includes two columns 3091 spaced apart along a second direction Y and a beam 3092 connected to the two columns 3091 at ends away from the base 306. The beam 3092 extends along the first direction X, and the columns 3091 extend along a third direction Z. There are two Z-axis transmission assemblies 3033, each mounted on one of the two columns 3091. There are two first optical axes 3071, each extending along the third direction Z and mounted on one of the two columns 3091. The Z-axis transmission assembly 3033 includes a slider 304, which is slidably disposed on the first optical axis 3071 along the third direction Z. The X-axis transmission assembly 3031 is disposed between two columns 3091. A second optical axis 3072 extends along the first direction X and is connected between the two sliders 304. The print head 302 is slidably disposed on the second optical axis 3072 along the first direction X. The number of second optical axes 3072 can be multiple, with the multiple second optical axes 3072 spaced apart along the third direction Z. In this manner, the X-axis transmission assembly 3031 and the Z-axis transmission assembly 3033 can drive the print head 302 in the first direction X and the third direction Z. The Y-axis transmission assembly 3032 is disposed on the base 306 and is in driving connection with the build platform 305 to drive the build platform 305 in the second direction Y. In this way, the print head 302 can move relative to the forming platform 305 along the first direction X, the second direction Y, and the third direction Z, and heat and melt the consumable material 500 according to the set path and print and form it on the forming platform 305.

[0040] The 3D printer 300 of this embodiment is a gantry-type 3D printer. In other embodiments, the 3D printer 300 may also be a complete 3D printer, a single-cantilever 3D printer, an infinite-axis 3D printer, or a delta-type 3D printer. The specific structure of the frame 309 may be adjusted accordingly depending on the model of the 3D printer and will not be further described here.

[0041] See further Figure 1The consumables storage device 308 is located on one side of the frame 309, for example, on one side of the column 3091. The consumables storage device 308 is used to transport consumables 500 between the print heads 302. The consumables storage device 308 may include a consumables 500 rack and an extrusion structure. The consumables 500 are wound around the consumables 500 rack and are driven by the extrusion structure to be transported to the print head 302 or returned to the consumables 500 rack. In other embodiments, the consumables storage device 308 may also be located on the crossbeam 3092.

[0042] See further Figure 1 The base 306 is also provided with a power supply component and a control component (not shown in the figure). The cable 400 is connected between the print head 302 and the base 306. The cable 400 is configured to transmit control signals or power to the print head 302.

[0043] See also Figure 2 and Figure 3 The mounting assembly 100 includes a main body 10 and a cable clamp 20. The main body 10 is configured to be mounted on the frame 309. The main body 10 defines a communication hole K1 that extends through the main body 10 and is configured to guide the consumable material 500 to the print head 302. The cable clamp 20 is connected to the main body 10 and is used to clamp the cable 400.

[0044] When the 3D printer 300 is working, the consumables 500 in the consumable storage device 308 pass through the connecting hole K1 and are transported to the print head 302. When the print head 302 moves relative to the frame 309, it will drive the cable 400 and the consumables 500 to move and be pulled in three-dimensional space. In this embodiment, a portion of the cable 400 is clamped by the wire clamping portion 20, thereby remaining fixed on the main body 10 and located at the position where the mounting assembly 100 is mounted on the frame 309. A portion of the consumables 500 is limited by the connecting hole K1 and located at the position where the mounting assembly 100 is mounted on the frame 309. In this way, both the cable 400 and the consumables 500 are limited, which can reduce the cable 400 and the consumables 500 between the mounting assembly 100 and the print head 302. The pulling amplitude is reduced, and the pulling amplitude of the cable 400 and the consumables 500 between their starting points and the mounting assembly 100 is reduced, so that the pulling and floating movement of the cable 400 and the consumables 500 in the spatial range is kept within a smaller range, thereby ensuring the safety of the movement of the cable 400 driven by the print head 302 and the transportation stability of the consumables 500 driven by the print head 302. In addition, since the cable 400 and the consumables 500 will not have a large-scale floating deviation, and will not collide with the molded workpiece printed by the print head 302, the cable 400 and the consumables 500 are prevented from damaging the workpiece, thereby ensuring the molding quality of the workpiece.

[0045] In some embodiments, see Figure 2The main body 10 is mounted on one of the sliding members 304. In this way, when the Z-axis transmission assembly 3033 drives the sliding member 304 to move along the third direction Z, the main body 10 can be driven to move along the third direction Z. As a result, during the movement of the print head 302, the consumables 500 and the cable 400 primarily swing in the first direction X. This further reduces the swing amplitude of the consumables 500 and the cable 400 between the print head 302 and the main body 10 along the third direction Z, and ensures that the cable 400 and consumables 500 in this portion do not fall and affect the forming of the workpiece.

[0046] In other embodiments, the main body 10 may also be fixedly mounted on the column 3091 or the crossbeam 3092 of the frame 309. In other embodiments, multiple main bodies 10 may be provided, with the multiple main bodies 10 spaced apart along the third direction Z. Alternatively, a mounting bar may be provided between the two slides 304, and multiple main bodies 10 spaced apart along the first direction X may be mounted on the mounting bar.

[0047] Therefore, the number and installation position of the main body 10 can be determined and adjusted according to actual needs, and this embodiment does not specifically limit them.

[0048] In this embodiment, see Figure 2 The mounting assembly 100 further includes a guide portion 30. The guide portion 30 is detachably connected to the main body 10 and defines a guide hole K2, which communicates with the connecting hole K1. The guide hole K2 is configured to allow the consumable 500 to pass through, with at least a portion of the guide portion 30 being received within the connecting hole K1. Thus, conveying the consumable 500 through the guide portion 30 reduces the likelihood of damage to the consumable 500 during conveyance, thereby ensuring the consumable 500 is conveyed intact.

[0049] In some embodiments, see Figure 2 and Figure 3 The guide part 30 includes a connector 31 and a feeding tube 32. The connector 31 is matched with the main body 10. One end of the feeding tube 32 is passed through the connector 31 and defines a guide hole K2. The other end of the feeding tube 32 is used to connect to the print head 302 to transport the consumables 500 to the print head 302.

[0050] The connector 31 connects the feed tube 32 to the main body 10. The connector 31 can be a rigid structure. For example, the connector 31 can be a metal part, and the main body 10 can be made of a low-cost material such as plastic. The feed tube 32 reliably protects the consumables 500 between the mounting assembly 100 and the print head 302. Specifically, the feed tube 32 can be a Teflon tube. The non-stick inner wall of the Teflon tube prevents the consumables 500 from adhering to the inner surface of the feed tube 32 during transportation. Furthermore, because the connector 31 is connected between the feed tube 32 and one side of the main body 10, the user can only insert the consumables 500 from the other side of the main body 10, thereby preventing errors when inserting the consumables 500 and achieving a simple foolproofing effect.

[0051] In some embodiments, another connector 31 (not shown in the figures) that cooperates with the feeding tube 32 is provided in the print head 302 .

[0052] In some embodiments, see Figure 2 and Figure 3 The mounting assembly 100 further includes a locking member 50 , which is spaced apart from the main body 10 . The locking member 50 is configured to fix the cable 400 and the feeding tube 32 .

[0053] By securing the cable 400 and consumables 500 with the locking member 50, the cable 400 and consumables 500 can be further secured and positioned between the mounting assembly 100 and the print head 302, further reducing the shaking of the consumables 500 or cable 400 caused by the print head 302. Optionally, the locking member 50 is disposed between the main body 10 and the print head 302. Multiple locking members 50 can be provided, with the multiple locking members 50 spaced apart from each other. This minimizes the likelihood of shaking of the cable 400 and feed tube 32 between the mounting assembly 100 and the print head 302.

[0054] In some embodiments, see Figure 3 The locking member 50 includes a hole portion 51 and a groove portion 52 connected thereto. The hole portion 51 defines a limiting hole K3, which is configured to allow the consumable material 500 to pass through and retain the consumable material 500. The groove portion 52 defines a second wire clamping groove C2, which is configured to clamp the feed tube 32. The structure of the groove portion 52 can be referred to the structure of the wire clamping portion 20 and will not be repeated here.

[0055] In other embodiments, the locking member 50 may also be configured as a cable tie to secure the cable 400 and the consumable material 500. The cable tie has the advantages of simple structure and low cost.

[0056] In some embodiments, see Figure 4The connecting hole K1 includes a guide section K11 and a conveying section K12. One end of the guide portion 30 is received in the conveying section K12, and the other end of the guide portion 30 extends away from the guide section K11. The inner diameter of the guide section K11 gradually decreases as it approaches the conveying section K12. The guide section K11 is configured to guide the consumable material 500 into the conveying section K12. This facilitates the consumable material 500 to pass from the guide section K11 into the connecting hole K1, and then into the connector 31 and the feed tube 32, improving the ease of insertion of the consumable material 500.

[0057] In some embodiments, see Figure 4 The inner diameter of the end of the conveying section K12 close to the guide section K11 is smaller than the inner diameter of the end of the conveying section K12 away from the guide section K11. In this way, the transmission of the consumables 500 will not be obstructed, and the end with the larger inner diameter can also provide installation space for the connector 31, so that the consumables 500 can be smoothly inserted into the guide hole K2 of the connector 31. Figure 4 In the illustrated embodiment, the conveying section K12 is provided with a tapered section connected to the guiding section K11 . Figure 5 In the embodiment shown, the conveying section K12 is designed as a stepped hole.

[0058] In other embodiments, the inner diameter of the guide hole K2 is the same as the inner diameter of the connecting section, so as to reduce the possibility of obstruction or damage of the consumable 500 during transportation and ensure the transportation reliability of the consumable 500.

[0059] In some embodiments, the portion of the connector 31 that extends into the communication hole K1 is provided with external threads, the delivery section K12 is a threaded hole, and the connector 31 is threadedly connected to the main body 10. This ensures a reliable connection between the connector 31 and the main body 10 and also facilitates quick disassembly and replacement of the connector 31 according to actual needs, thereby improving operational convenience.

[0060] In some embodiments, see Figure 6 The main body 10 includes a barrel 11, a first side wall 12, and a second side wall 13. The barrel 11 defines a connecting hole K1. The first side wall 12 and the second side wall 13 are respectively provided on either side of the barrel 11. The cable clamp 20 is connected to the side of the first side wall 12 facing away from the second side wall 13. This separates the cable 400 from the consumables 500, reducing the possibility of the consumables 500 and the cable 400 becoming entangled and dragged.

[0061] In some embodiments, the opening width of the first clamping groove C1 is smaller than the maximum width of the first clamping groove C1 to prevent the cable 400 from escaping from the first clamping groove C1. Specifically, the cross-section of the clamping portion 20 is generally arc-shaped, and the distance between the free end of the clamping protrusion 22 away from the main body and the guide portion 30 is smaller than the outer diameter of the cable 400, thereby reducing the possibility of the cable 400 escaping from the first clamping groove C1.

[0062] In some embodiments, see Figure 6 The wire clamping portion 20 includes two wire clamping walls 21 arranged at intervals. The two wire clamping walls 21 cooperate with the main body 10 to form a first wire clamping groove C1. The two wire clamping walls 21 can achieve stable clamping of the cable 400. The opening size formed by the two wire clamping walls 21 on the side away from the main body 10 is smaller than the outer diameter of the cable 400, so as to achieve the function of preventing the cable 400 from escaping from the wire clamping portion 20.

[0063] In some embodiments, see Figure 6 The inner surface of the clamping wall 21 is provided with a clamping protrusion 22, which is used to clamp the cable 400 to limit the cable 400 from moving along the length of the first clamping groove C1. The outer surface of the cable 400 is typically a plastic outer sheath with a certain degree of flexibility. After the clamping protrusion 22 is provided, the clamping protrusion 22 can squeeze the plastic outer sheath, thereby clamping and fixing the cable 400, further limiting the cable 400 from moving along the length of the first clamping groove C1. This ensures that the clamping portion 20 firmly clamps the middle portion of the cable 400, preventing it from moving under the influence of the print head 302.

[0064] In another embodiment, see Figure 7 The wire clamping portion 20 is protruding from the surface of the main body 10, and the wire clamping portion 20 and the surface of the main body 10 define a first wire clamping groove C1. The wire clamping portion 20 is used to cooperate with the main body 10 and clamp the cable 400, so as to press the cable 400 against the main body 10. In this way, the wire clamping portion 20 presses the cable 400 against the main body 10, thereby simply clamping the cable 400. Specifically, the wire clamping portion 20 is connected to the barrel 11, and the first wire clamping groove C1 is formed between the wire clamping portion 20 and the barrel 11, and is configured to press the cable 400 against the main body 10.

[0065] In some embodiments, see Figures 4 to 6 The mounting assembly 100 further includes a first pivoting portion 41. The first pivoting portion 41 is connected to the main body 10 and is configured to be rotatably connected to the frame 309, so that the main body 10 is configured to rotate around a rotation axis driven by the consumable 500 and / or the cable 400.

[0066] The movement of the print head 302 drives the cable 400 and consumables 500. The moving cable 400 and consumables 500 exert a certain force on the main body 10, which can easily cause jamming and reduce the movement accuracy of the print head 302. In this embodiment, because the main body 10 rotates with the hinge portion through the hinge hole, the main body 10 rotates about the rotation axis relative to the hinge portion (i.e., the guide member) after being subjected to this force. This significantly reduces the reaction force exerted by the main body 10 on the cable 400 or consumables 500, reducing the possibility of the cable 400 or consumables 500 bending under the reaction force. This effectively protects the cable 400 and consumables 500, ensures the integrity of the consumables 500 when input into the print head 302, and improves the extrusion quality of the consumables 500. In addition, because the movement accuracy of the print head 302 is guaranteed, the print quality of the workpiece can also be further improved.

[0067] In some embodiments, the sliding member 304 is provided with a second pivoting portion 3041. The first pivoting portion 41 is pivotally connected to the second pivoting portion 3041.

[0068] In some embodiments, see Figure 4 The first pivoting portion 41 is configured as a pivot hole 41a formed in the first side wall 12. The second pivoting portion 3041 is configured as a pivot shaft 3041a fixedly connected to the sliding member 304. The pivot shaft 3041a fits within the pivot hole 41a. The rotation axis is the centerline of the pivot hole 41a.

[0069] In some embodiments, the pivot hole 41a is a countersunk hole to accommodate the end of the pivot shaft 3041a. In other embodiments, the second pivot portion 3041 can also be configured as a stud and a nut, with the stud passing through the hinge hole and the nut being located on the side of the stud away from the guide member along the rotation axis of the main body 10 to prevent the main body 10 from disengaging from the stud.

[0070] In some embodiments, see Figure 6 The main body 10 further includes a first support portion 14. The first support portion 14 is connected to the first side wall 12 and abuts against the sliding member 304. The first side wall 12 and the first support portion 14 both define a pivot hole 41a. This improves the mating strength between the main body 10 and the second pivot portion 3041, and enhances the reliability of the connection between the mounting assembly 100 and the sliding member 304.

[0071] In some embodiments, see Figures 4 to 6The mounting assembly 100 further includes a first limiting portion 42. The first limiting portion 42 is connected to the main body 10 and is configured to cooperate with the frame 309 to limit the rotation range of the main body 10 relative to the frame 309. In this way, during the rotation of the main body 10 relative to the frame 309, the first limiting portion 42 can limit the rotation range of the main body 10 to prevent the main body 10 from rotating too much at an angle driven by the cable 400 or the consumable 500, thereby preventing the cable 400 or the consumable 500 from bending too little at an angle, thereby ensuring that the bending angle of the cable 400 or the consumable 500 remains within a relatively stable rotation range.

[0072] In some embodiments, the sliding member 304 is further provided with a second limiting portion 3042 . The second limiting portion 3042 cooperates with the first limiting portion 42 to limit the rotation range of the mounting assembly 100 relative to the sliding member 304 to an extreme position.

[0073] In some embodiments, see Figure 4 The first limiting portion 42 is configured as a limiting groove 42a, and the second limiting portion 3042 is configured as a limiting shaft 3042a. The limiting shaft 3042a is fixedly connected to the sliding member 304 and extends through the limiting groove 42a. Thus, when the groove surfaces at both ends of the limiting groove 42a abut against the limiting shaft 3042a, the rotation of the main body 10 relative to the sliding member 304 is limited. Providing the limiting groove 42a on the main body 10 also has the advantages of simple structure and ease of processing.

[0074] In some embodiments, see Figure 4 The limiting groove 42a is constructed as an arc groove, and the center of the arc of the arc groove coincides with the rotation axis to prevent the limiting groove 42a from interfering with the rotation of the main body 10. In other embodiments, the center of the limiting groove 42a can also be set at other positions.

[0075] In some embodiments, see Figure 6 The main body 10 further includes a second support portion 15. The second support portion 15 is connected to the second side wall 13 and abuts against the sliding member 304. The second side wall 13 and the second support portion 15 both define a retaining groove 42a. This improves the overall strength of the main body 10 and enhances the reliability of the fit between the retaining shaft 3042a and the retaining groove 42a.

[0076] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present application should not depart from the spirit and scope of the technical solutions of the present application.

Claims

1. A mounting assembly for a 3D printer, the 3D printer comprising a frame and a print head, the print head being movably connected to the frame, the print head being configured to receive and extrude consumable material, the print head being connected to a cable, characterized in that: The installation components include: a main body configured to be disposed on the frame, the main body being provided with a communication hole, the communication hole penetrating the main body, the communication hole being configured to guide the consumable material to the print head; The wire clamping portion is connected to the main body portion and is used to clamp the cable.

2. The mounting assembly according to claim 1, wherein: The mounting assembly also includes a guide portion, which is detachably connected to the main body portion. The guide portion is provided with a guide hole, which is connected to the connecting hole. The guide hole is constructed to allow the consumable material to pass through, and at least a portion of the guide portion is accommodated in the connecting hole.

3. The mounting assembly according to claim 2, wherein: The guide portion includes a connector and a feed tube, the connector is fitted into the main body, one end of the feed tube is passed through the connector and defines the guide hole, and the other end of the feed tube is used to connect to the print head to transport the consumables to the print head.

4. The mounting assembly according to claim 3, wherein: The mounting assembly further includes a locking member spaced apart from the main body, the locking member being configured to secure the cable and the feed tube.

5. The mounting assembly according to claim 2, wherein: The connecting hole includes a guide section and a conveying section that are connected to each other. One end of the guide part is accommodated in the conveying section, and the other end of the guide part extends in a direction away from the guide section. The inner diameter of the guide section gradually decreases in a direction approaching the conveying section. The guide section is configured to guide the consumable material into the conveying section.

6. The mounting assembly according to any one of claims 1 to 5, characterized in that: The wire clamping portion is protruding from the surface of the main body portion, and the wire clamping portion and the surface of the main body portion define a first wire clamping groove. The wire clamping portion is configured to clamp the cable.

7. The mounting assembly according to any one of claims 1 to 5, characterized in that: The mounting assembly also includes a first pivot portion, which is connected to the main body portion. The first pivot portion is configured to be rotatably connected to the frame so that the main body portion is configured to rotate around a rotation axis driven by the consumables and / or the cable.

8. The mounting assembly according to claim 7, wherein: The mounting assembly further includes a first limiting portion connected to the main body portion. The first limiting portion is configured to cooperate with the frame to limit a rotation range of the main body portion relative to the frame.

9. A 3D printer, characterized in that: include: frame; A print head, the print head being movably mounted on the frame, the print head being used to receive and extrude consumables, and the print head being connected to a cable; The mounting assembly according to any one of claims 1 to 8, wherein the mounting assembly is provided on the rack.

10. The 3D printer according to claim 9, wherein: The 3D printer further includes a transmission assembly, which is disposed on the frame. The print head is connected to the transmission assembly. The mounting assembly is disposed on the transmission assembly to move under the drive of the transmission assembly. The mounting assembly is connected to the transmission assembly.

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