Print head module and 3D printing device

Abstract

A print head module (1) and a 3D printing device (2). A filament cutting assembly (10) is used in cooperation with a conveying channel (11) for conveying consumables, the filament cutting assembly (10) comprises a driving member (101) and a filament cutting member (102), the filament cutting member (102) is driven by and connected to the driving member (101), and the filament cutting member (102) is configured to selectively enter the conveying channel (11) to cut the consumables located in the conveying channel (11). The print head module (1) comprises a nozzle assembly (12) and the filament cutting assembly (10), and the conveying channel (11) is arranged through the nozzle assembly (12). The 3D printing device (2) comprises the filament cutting assembly (10), or the print head module (1). In the provided print head module (1) and the 3D printing device (2), the filament cutting member (102) is driven to cooperate with the driving member (101), so that the filament cutting member (102) is driven and enters the conveying channel (11) to cut the consumables.

Description

Nozzle module and 3D printing device

[0001] The present application claims priority to the Chinese patent application No. 202411048476.2, filed on July 31, 2024, entitled “Material cutting assembly, nozzle module and 3D printing device”, the content of which is incorporated herein by reference in its entirety. The present application claims priority to the Chinese patent application No. 202421842815.X, filed on July 31, 2024, entitled “Printing head device and 3D printing device using the same”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of 3D printing, and in particular to a nozzle module and a 3D printing device. BACKGROUND

[0003] 3D printing technology is a rapid prototyping technology that uses digital model files as the basis, and uses special wax materials, powdered metals or plastics, and other materials that can be bonded, to create three-dimensional objects by printing layer upon layer of materials. Fused deposition modeling technology is one of the main 3D printing technologies. This technology melts and extrudes hot-melt material from a nozzle, depositing it on a forming platform or on a previously solidified layer of material, to ultimately generate a physical object. During the 3D printing process, there may be a need to replace consumables. A common way to do this is to cut off the consumables and replace them. How to optimize this process is a consideration for those skilled in the art. SUMMARY

[0004] The present application provides a nozzle module, comprising a nozzle assembly and a material cutting assembly, the material cutting assembly is used in cooperation with a transmission channel for transmitting consumables, the material cutting assembly comprises a driving member and a material cutting member, the material cutting member is drivingly connected with the driving member, and the material cutting member is configured to selectively enter the transmission channel to shear the consumables located in the transmission channel.

[0005] In an embodiment, the driving member and the material cutting member are fixedly connected or hingedly connected; alternatively, the driving member and / or the material cutting member is / are configured to be arranged on a bracket, and the driving member and / or the material cutting member is / are fixedly connected or hingedly connected with the bracket.

[0006] In an embodiment, a sensor is further included, which is configured to sense the motion state and / or position of the driving member and / or the material cutting member.

[0007] In an embodiment, the sensor device comprises a first angle sensor configured to follow the movement of the driving member; or, the sensor device comprises a first infrared sensor arranged on the movement path of the driving member, the first infrared sensor being configured to be blocked by the driving member and generate a corresponding first infrared blocking signal to detect the position of the driving member; or, the sensor device comprises a first Hall sensor, the driving member being arranged to move relative to the first Hall sensor, the first Hall sensor being configured to be blocked by the driving member and generate a corresponding first Hall blocking signal to detect the position of the driving member; or, the sensor device comprises a first displacement sensor arranged on the driving member; or, the sensor device comprises a first displacement sensor arranged on the movement path of the driving member; or, the sensor device comprises a first photoelectric sensor configured to be blocked by the driving member and generate a corresponding first photoelectric blocking signal to detect the position of the driving member; or, the sensor device comprises a first electromagnetic sensor arranged on the movement path of the driving member, the driving member being configured to cause a change in the magnetic field and / or induced current of the first electromagnetic sensor.

[0008] In an embodiment, the apparatus further comprises a first reset member configured to drive the driving member to reset, so that the material breaking member exits the transmission channel.

[0009] In an embodiment, the first reset member comprises a first spring reset structure connected to and / or abutting against the driving member.

[0010] In an embodiment, the first reset member comprises a first magnetic reset structure, the first magnetic reset structure comprising a first magnetic member connected to the driving member and a second magnetic member arranged to be spaced apart from the first magnetic member.

[0011] In an embodiment, the sensor device comprises a second angle sensor arranged on the material breaking member and configured to detect the rotation angle of the material breaking member; or, the sensor device comprises a second displacement sensor arranged on the material breaking member; or, the sensor device comprises a second displacement sensor arranged on the movement path of the material breaking member; or, the sensor device comprises a second photoelectric sensor configured to be blocked by the material breaking member and generate a corresponding second photoelectric blocking signal to detect the position of the material breaking member; or, the sensor device comprises a second electromagnetic sensor arranged on the movement path of the material breaking member, the material breaking member being configured to cause a change in the magnetic field or induced current of the second electromagnetic sensor.

[0012] In an embodiment, a second reset member is further included for driving the material breaking member to reset so that the material breaking member exits the transmission channel.

[0013] In an embodiment, the second reset member includes at least one of a second spring reset structure, a second torsion spring reset structure, and a second magnetic reset structure, and the second reset member is connected with and / or abuts against the material breaking member.

[0014] Embodiments of the present application provide a nozzle module having a transmission channel for transmitting a consumable, the nozzle module further comprising: a first support through which the transmission channel is arranged; a material breaking assembly including a material breaking member, the material breaking member including a first moving member, a first reset mechanism, and a material breaking mechanism, the first moving member being connected with the first support movably and the material breaking mechanism, the first reset mechanism being connected with the first moving member and the first support, and the first reset mechanism being configured to drive the first moving member to reset the material breaking mechanism by magnetic force.

[0015] In an embodiment, the transmission channel passes through the first support along a feeding direction, and the material breaking assembly further includes: a driving member rotatably connected with the first support, the material breaking member being drivingly matched with the driving member, and the material breaking member being configured to selectively enter the transmission channel to shear the consumable in the transmission channel. Wherein, the driving member is configured to move the first moving member between a first position and a second position, and when moving from the first position to the second position, the first moving member drives the material breaking mechanism to enter the transmission channel from an infeed direction, the feeding direction intersecting the infeed direction, and the first reset mechanism providing a reset force by magnetic force for the driving member to return to the first position.

[0016] In an embodiment, the first reset mechanism includes: a first magnetic mechanism connected with the first moving member; and a second magnetic mechanism connected with the first support, the first magnetic mechanism and the second magnetic mechanism being movably arranged with each other, and the first magnetic mechanism and the second magnetic mechanism being configured such that when the material breaking mechanism invades the transmission channel, a repulsive force between the first magnetic mechanism and the second magnetic mechanism is greater than an attractive force between the first magnetic mechanism and the second magnetic mechanism.

[0017] In one embodiment, the first moving member is configured to move along the feed direction to drive the material breaking mechanism to enter or exit the transmission channel; the first magnetic mechanism and the second magnetic mechanism are arranged side by side along the feed direction; the first magnetic mechanism comprises a first magnetic pole and a second magnetic pole, the first magnetic pole is arranged closer to the transmission channel than the second magnetic pole along the feed direction; the second magnetic mechanism comprises a third magnetic pole and a fourth magnetic pole, the third magnetic pole is arranged closer to the transmission channel than the fourth magnetic pole along the feed direction; the first magnetic pole and the third magnetic pole are same poles, and the second magnetic pole and the fourth magnetic pole are same poles.

[0018] In one embodiment, the first reset mechanism is arranged between the driving member and the material breaking mechanism; the first magnetic pole and the second magnetic pole are opposite poles, and the third magnetic pole and the fourth magnetic pole are opposite poles; the first magnetic mechanism and the second magnetic mechanism are configured such that when the material breaking mechanism enters the transmission channel, the first magnetic pole and the third magnetic pole are arranged side by side along the feed direction, and / or the second magnetic pole and the fourth magnetic pole are arranged side by side along the feed direction.

[0019] In one embodiment, the first support has an inner side end which is arranged away from the transmission channel; the first moving member comprises a first accommodating hole which is arranged on the side of the first moving member facing the inner side end, and the first magnetic mechanism is accommodated in the first accommodating hole; the inner side end is provided with a second accommodating hole on the side facing the first moving member, and the second magnetic mechanism is accommodated in the second accommodating hole.

[0020] In one embodiment, the first moving member is configured to move along the feed direction, and the first reset mechanism further comprises a first elastic member which is clamped between the first moving member and the first support along the feed direction, and the first elastic member is configured to be in a compressed state when the material breaking mechanism enters the transmission channel.

[0021] In one embodiment, the first support has a bottom end, and the first support further comprises a guide portion which is protrudingly arranged from the bottom end, the transmission channel is arranged through the guide portion along the feed direction, the first moving member is provided with a guide groove which is located between the material breaking mechanism and the bottom end; one end of the first elastic member is accommodated in the guide groove, and the other end of the first elastic member extends out of the guide groove and abuts against the guide portion.

[0022] In one embodiment, the guide portion is provided with a feed slot along the feed direction, the feed slot is in communication with the transmission channel, and the end of the material breaking mechanism away from the first moving member is configured to enter the transmission channel through the feed slot.

[0023] In an embodiment, the first moving member is configured to move along the feeding direction; the first support has a bottom end, and the first moving member is arranged at the bottom end; the first moving member is provided with a guide hole along the feeding direction, and a guide column is arranged through the guide hole and fixedly connected with the first support through the bottom end; the guide column is configured to be accommodated in the guide hole when the first moving member moves along the feeding direction.

[0024] In an embodiment, the first moving member includes a force receiving end and a connecting end arranged at intervals along the feeding direction; the force receiving end is configured to be in contact with the driving member; and the connecting end is configured to be connected with the material cutting mechanism; and the guide hole is located between the force receiving end and the connecting end.

[0025] In an embodiment, the driving member includes a first end portion, a second end portion, and a force applying end portion; the first end portion is rotatably connected with the first support through a rotating shaft; the second end portion is configured to be driven to rotate the driving member along the rotating shaft; the force applying end portion is located between the first end portion and the second end portion and is located on a side of the driving member facing the first moving member and the transmission channel; the force applying end portion is in contact with the first moving member and is configured to push the first moving member.

[0026] In an embodiment, the nozzle module further includes a second reset mechanism, which is a torsion spring; the second reset mechanism is sleeved on the rotating shaft and arranged between the rotating shaft and the first end portion; and the second reset mechanism is configured to be in a compressed state when the material cutting mechanism invades the transmission channel.

[0027] The embodiments of the present application also provide a 3D printing device including the material cutting assembly according to any one of the preceding embodiments or the nozzle module according to the preceding description.

[0028] The nozzle module and the 3D printing device provided by the embodiments of the present application are characterized in that the material cutting member and the driving member are in driving cooperation, so that the material cutting member is driven to enter the transmission channel to cut the consumable. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is a schematic view of a 3D printing device according to an embodiment of the present application.

[0030] FIG. 2 is a schematic view of a nozzle module according to an embodiment of the present application.

[0031] FIG. 3 is a schematic view of a material cutting assembly according to an embodiment of the present application.

[0032] Figure 4 is a schematic view of an embodiment of the material breaking assembly provided by the present application, wherein (a) is a schematic view of the driving member and the material breaking member being fixedly connected, and (b) is a schematic view of the driving member and the material breaking member being hingedly connected.

[0033] Figure 5 is a schematic view of an embodiment of the material breaking assembly provided by the present application, wherein (a) is a schematic view of the driving member and the support being fixedly connected, and (b) is a schematic view of the driving member and the support being hingedly connected.

[0034] Figure 6 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0035] Figure 7 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0036] Figure 8 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0037] Figure 9 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0038] Figure 10 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0039] Figure 11 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0040] Figure 12 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0041] Figure 13 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0042] Figure 14 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0043] Figure 15 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0044] Figure 16 is a schematic view of an embodiment of the material breaking assembly provided by the present application, wherein (a) is a schematic view of the first magnetic member and the second magnetic member being arranged in a staggered manner, and (b) is a schematic view of the first magnetic member and the second magnetic member being arranged in a same row.

[0045] Figure 17 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0046] Figure 18 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0047] Figure 19 is a schematic view of an embodiment of the material breaking assembly provided by the present application.

[0048] Fig. 20 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0049] Fig. 21 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0050] Fig. 22 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0051] Fig. 23 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0052] Fig. 24 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0053] Fig. 25 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0054] Fig. 26 is a schematic view of an embodiment of the material breaking assembly according to the present application.

[0055] Fig. 27 is a schematic view of an embodiment of the material breaking assembly according to the present application, wherein (a) is a schematic view of the third magnetic member and the fourth magnetic member being arranged in a staggered manner, and (b) is a schematic view of the third magnetic member and the fourth magnetic member being arranged in a same row.

[0056] Fig. 28 is a schematic view of a spray head module according to an embodiment of the present application.

[0057] Fig. 29 is a cross-sectional view of the spray head module of Fig. 28 along the direction II-II.

[0058] Fig. 30 is a schematic view of a material breaking assembly of a spray head module according to an embodiment of the present application cooperating with a first support.

[0059] Fig. 31 is a schematic view of a material breaking assembly of a spray head module according to an embodiment of the present application.

[0060] Fig. 32 is a schematic view of a material breaking assembly of a spray head module according to an embodiment of the present application cooperating with a first support.

[0061] Fig. 33 is a schematic view of a material breaking assembly according to an embodiment of the present application.

[0062] Fig. 34 is a schematic view of a cross-section of a spray head module according to an embodiment of the present application.

[0063] Fig. 35 is a schematic view of a material breaking assembly of a spray head module according to another embodiment of the present application cooperating with a first support.

[0064] Fig. 36 is a schematic view of a cross-section of a material breaking assembly of a spray head module according to another embodiment of the present application cooperating with a first support.

[0065] Figure 37 is a partial perspective view of a cutting assembly of a nozzle module according to another embodiment of the present application.

[0066] Figure 38 is a perspective view of a nozzle module according to yet another embodiment of the present application.

[0067] Explanation of reference signs: 1-nozzle module; 10-material breaking assembly; 101-driving member; 1011-first driving end; 1012-second driving end; 102-material breaking member; 1021-mounting seat; 1022-blade; 1031-first hinged part; 1032-second hinged part; 11-transport channel; 12-nozzle assembly; 121-first part; 122-second part; 123-transition part; 124-extrusion part; 125-arch body; 13-sensor member; 1311-first angle sensor; 1312-second angle sensor; 1321-first infrared sensor; 1322-second infrared sensor; 1331-first Hall sensor; 1332-second Hall sensor; 1341-first displacement sensor; 1342-second displacement sensor; 1351-first photoelectric sensor; 1352-second photoelectric sensor; 1361-first electromagnetic sensor; 1362-second electromagnetic sensor; 14-first reset member; 141-first spring reset structure; 142-first torsion spring reset structure; 143-first magnetic reset structure; 1431-first magnetic member; 1432-second magnetic member; 15-second reset member; 151-second spring reset structure; 152-second torsion spring reset structure; 153-second magnetic reset structure; 1531-third magnetic member; 1532-fourth magnetic member; 2-3D printing device; 20-driving assembly; 21-bracket; 22-base unit; 23-molding platform; 24-X-axis driving structure; 25-Y-axis driving structure; 26-Z-axis driving structure; X-first direction; Y-second direction; Z-third direction; 31-first bracket; 311-inner side end; 3110-second accommodating hole; 312-bottom end; 3121-guide part; 31210-feeding slot; 313-opening structure; 32-material breaking assembly; 320-material breaking member; 321-driving member; 3211-first end; 3212-second end; 3213-force applying end; 3214-rotation shaft; 322-first moving member; 3220-first accommodating hole; 3221-stress receiving end; 3222-connecting end; 3223-top surface; 3224-bottom surface; 3225-side surface; 3226-guide hole; 32261-first accommodating cavity; 32262-second accommodating cavity; 3227-guide column; 32271-screw rod; 32272-screw nut; 3228-guide slot; 32281-window; 323-first reset mechanism; 3231-first magnetic mechanism; 32311-first magnetic pole; 32312-second magnetic pole; 3232-second magnetic mechanism; 32321-third magnetic pole; 32322-fourth magnetic pole; 3233-first elastic member; 324-second reset mechanism; 325-material breaking mechanism; 3251-tool bit; 33-feeding assembly; 331-feeding driving part; 332-extrusion gear; 34-hot end; 341-radiating part; 342-heating part; 343-nozzle part;T- feed direction; H- feed direction.

[0068] The following detailed description will further describe the present application with reference to the above mentioned figures. DETAILED DESCRIPTION

[0069] The following description will refer to the accompanying drawings, which are meant to be exemplary embodiments of the present application. However, the present application can be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. Like reference numerals refer to like elements throughout. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting of the present 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. Furthermore, to the extent that the terms "including", "includes", "having", "has", "a", "an", "one" or "said" are used in this specification and / or claims, they are intended to be inclusive (meaning that there can be additional items) and / or they are intended to be quantitatively-satisfied by at least the recited members, unless explicitly indicated to the contrary. Unless otherwise defined, all terms (including 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. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0070] The following will describe exemplary embodiments in conjunction with the accompanying drawings. It should be noted that the components depicted in the accompanying drawings are not necessarily shown to scale; rather, identical or similar components will be assigned identical or similar reference numerals or analogous technical terms.

[0071] The following will describe exemplary embodiments in conjunction with the accompanying drawings. It should be noted that the components depicted in the accompanying drawings are not necessarily shown to scale; rather, identical or similar components will be assigned identical or similar reference numerals or analogous technical terms.

[0072] As shown in FIGS. 1-3, the present application provides a material breaking assembly 10, a nozzle module 1 applying the material breaking assembly 10, and a 3D printing device 2 applying the material breaking assembly 10 and / or the nozzle module 1.

[0073] For ease of understanding, a first direction X, a second direction Y and a third direction Z are introduced in the embodiments of the present application for description, the first direction X, the second direction Y and the third direction Z are three mutually non-parallel directions in a space coordinate system; in subsequent embodiments, the first direction X, the second direction Y and the third direction Z are taken as three mutually perpendicular reference directions in a three-dimensional Cartesian coordinate system for description, the directions shown in the embodiments of the present application are used to help understand the mutual positional relationship of various components, but the specific directions are not limited.

[0074] Further in combination with FIG. 1, in an embodiment, the 3D printing device 2 provided by the embodiments of the present application can at least include a support 21, which can be a gantry or other support structure.

[0075] In the present embodiment, the support 21 includes two side columns and a cross beam connected to the top of the columns, the X-axis driving structure 24 is connected to the two side columns and can be driven to ascend or descend relative to the columns in the Z direction, and the nozzle module 1 is arranged on the X-axis driving structure 24. The nozzle module 1 is arranged on the support 21 through the X-axis driving structure 24, and the material breaking assembly 10 can be arranged on the nozzle module 1 and can move with the nozzle module 1, or the material breaking assembly 10 can also be arranged on the support 21, specifically, can be arranged on the two side columns.

[0076] It can be understood that the 3D printing device 2 can also include other functional units according to its printing forming mode. For example, the 3D printing device 2 can include a base unit 22, the base unit 22 is provided with a forming platform 23 for carrying the material extruded by the nozzle module 1 and making it form, and a Y-axis driving structure 25 for driving the forming platform 23 to move, at the same time, the base unit 22 can also be provided with a circuit board (not shown in the figure), a power adapter (not shown in the figure) and other functional units. For another example, the 3D printing device 2 can also include a Z-axis driving structure 26 arranged on the support 21 for driving the nozzle module 1 to move.

[0077] In an embodiment, the 3D printing device 2 can include a driving assembly 20 and a forming platform 23, the driving assembly 20 drives the nozzle module 1 to move relative to the forming platform 23. The driving assembly 20 at least includes an X-axis driving structure 24.

[0078] In other embodiments, the 3D printing device 2 can also include a display (not shown in the figure), a material guiding unit (not shown in the figure) and other functional units that can be used in the 3D printing process, and the specific structure, working principle, connection relationship, positional relationship, cooperation relationship and the like are not described in detail.

[0079] Further in combination with FIG. 2, in an embodiment, the nozzle module 1 provided by the embodiments of the present application can include a nozzle assembly 12 and a material breaking assembly 10, and the transmission channel 11 is arranged through the nozzle assembly 12.

[0080] It can be understood that the nozzle assembly 12 can include a first part 121, a transition part 123, and a second part 122, the first part 121 is connected with the first support 21, and the second part 122 is connected with the first part 121 through the transition part 123. Among them, the first part 121 can correspond to the main heat dissipation area of the nozzle assembly 12, the second part 122 can correspond to the main heating area of the nozzle assembly 12, and the transition part 123 can correspond to the throat area of the nozzle assembly 12. The transmission channel 11 can pass through the first part 121, the transition part 123, and the second part 122 along the extension direction thereof, so that the consumables located in the transmission channel 11 are heated and melted to facilitate the extrusion molding to complete the printing. The nozzle assembly 12 can also include an extrusion part 124, which is arranged upstream of the first part 121, the transition part 123, and the second part 122 along the extension direction of the transmission channel 11, and can be used for extruding and advancing the consumables.

[0081] In an embodiment, the material breaking assembly 10 cooperates with the nozzle assembly 12 to shear the consumables (not shown in the figure). It can be understood that the material breaking assembly 10 can be arranged upstream of the nozzle assembly 12 and / or spaced apart from the nozzle assembly 12, and the material breaking assembly 10 is configured to shear the consumables located in the transmission channel 11 of the nozzle assembly 12 to facilitate the nozzle assembly 12 to perform material replacement and the like.

[0082] In other embodiments, the nozzle module 1 can also include a cooling assembly (not shown in the figure) and other functional assemblies commonly used in the working and printing process of the nozzle module 1, and the specific structure, working principle, connection relationship, positional relationship, cooperation relationship and the like are not described in detail.

[0083] Further in combination with FIG. 3, the material breaking assembly 10 provided by the embodiments of the present application is used in cooperation with a transmission channel 11 for transmitting consumables. The material breaking assembly 10 includes a driving member 101 and a material breaking member 102, the material breaking member 102 is drivingly connected with the driving member 101, and the material breaking member 102 is configured to selectively enter the transmission channel 11 to shear the consumables located in the transmission channel 11.

[0084] It can be understood that the driving member 101 can have a strip-shaped structure, which can have a first driving end portion 1011 and a second driving end portion 1012 spaced apart, and the material breaking member 102 can be arranged at any position between the first driving end portion 1011 and the second driving end portion 1012. The material breaking member 102 has an integrated or detachably connected mounting seat 1021 and a blade 1022, the mounting seat 1021 is used for positioning and assembling the material breaking member 102, the mounting seat 1021 can be in contact with the driving member 101, and the blade 1022 is used for cutting the consumables.

[0085] Further in combination with FIG. 4, in an embodiment, the driving member 101 is connected with the material breaking member 102.

[0086] In the embodiment, as shown in part (a) of FIG. 4, the driving member 101 is fixedly connected with the cutting member 102, or as shown in part (b) of FIG. 4, the driving member 101 is hingedly connected with the cutting member 102, where the hinging can be achieved through a first hinge portion 1031.

[0087] It is to be explained that the “fixed connection” can be understood as the driving member 101 and the cutting member 102 are configured to have no relative movement but can have synchronous movement, and the “hinge connection” can be understood as the driving member 101 and the cutting member 102 are configured to have relative movement and synchronous movement.

[0088] It can be understood that the cutting member 102 and the driving member 101 in the fixed connection or the hinge connection can have substantially synchronous movement, and one of the driving member 101 and the cutting member 102 can be driven by driving the other one. By driving the driving member 101 to move, the driving member 101 can further drive the cutting member 102 to move. For example, the driving member 101 and the cutting member 102 can be driven by connecting the driving member 101 with a driving unit (e.g., a motor, not shown in the figure) or by colliding the driving member 101.

[0089] Further in combination with FIG. 5, in an embodiment, the driving member 101 is configured to be arranged on a bracket 21, and the transmission channel 11 is movably arranged relative to the bracket 21.

[0090] In the embodiment, as shown in part (a) of FIG. 5, the driving member 101 is fixedly connected with the bracket 21, or as shown in part (b) of FIG. 5, the driving member 101 is hingedly connected with the bracket 21, where the hinging can be achieved through a second hinge portion 1032.

[0091] It can be understood that the driving member 101 is fixedly connected or hingedly connected with the bracket 21, the driving member 101 can be kept relatively fixed with the bracket 21, the transmission channel 11 can follow the nozzle module 1 to have relative displacement relative to the bracket 21, and the cutting member 102 is directly connected with the driving member 101 or in a cooperative relationship and is configured to be able to enter the transmission channel 11, thereby controlling the cutting member 102 to shear the consumable.

[0092] Further in combination with FIG. 6, in an embodiment, the driving member 101 is configured to be able to move linearly.

[0093] In the embodiment, the driving member 101 moves linearly along the first direction X, and the driving member 101 is further able to drive the cutting member 102 to move linearly along the first direction X to enter the transmission channel 11, thereby achieving the shearing of the consumable.

[0094] Further in combination with Fig. 7, in an embodiment, the driving member 101 is configured to be rotatable.

[0095] In the present embodiment, the driving member 101 is configured to be rotatable in a plane formed by the first direction X and the second direction Y, so as to avoid the interference of the components in the third direction Z, and make the spatial layout of the material breaking assembly 10 more reasonable. Alternatively, the driving member 101 is configured to be rotatable in a plane formed by the first direction X and the third direction Z, so as to avoid the interference of the components in the second direction Y, and make the spatial layout of the material breaking assembly 10 more reasonable.

[0096] In other embodiments, the driving member 101 can also be a composite motion capable of linear movement and rotation, for example, a composite motion capable of movement and rotation in a plane formed by the first direction X and the second direction Y, or for example, a composite motion capable of movement and rotation in a plane formed by the first direction X and the third direction Z. By using the composite motion formed by movement and rotation, the movement trajectory of the driving member 101 in space can be more finely controlled, so as to avoid the interference of other components, and help to arrange the material breaking assembly 10 in a small space, so that the overall structure is more compact.

[0097] Further in combination with Figs. 8 to 13, in an embodiment, the material breaking assembly 10 further comprises a sensor member 13, which is used to sense the motion state and / or position of the driving member 101.

[0098] It can be understood that the sensor member 13 can be various sensor members 13 with different working principles and different working modes, including but not limited to angle sensors, infrared sensors, Hall sensors, displacement sensors, photoelectric sensors, and electromagnetic sensors.

[0099] Further in combination with Fig. 8, in an embodiment, the sensor member 13 comprises a first angle sensor 1311.

[0100] In an embodiment, the first angle sensor 1311 is arranged on the driving member 101, and the first angle sensor 1311 is configured to follow the movement of the driving member 101. In other embodiments, the first angle sensor 1311 can not be arranged on the driving member 101 but connected to the driving member 101 to follow the movement through other ways.

[0101] It can be understood that the first angle sensor 1311 is a device capable of measuring and monitoring the angular change of an object or system, which can be divided into various types according to different working principles and designs, including resistance type, rotary type, optical type, magnetic type, and capacitive type encoders, etc., which can convert physical angular change into electrical signals or digital signals for measurement and control.

[0102] In an embodiment, the driving member 101 is arranged to rotate, and the first angle sensor 1311 is configured to detect a rotation angle of the driving member 101.

[0103] In an embodiment, the rotation angle of the driving member 101 corresponds to a first angle interval threshold, the first angle interval threshold has a first angle upper limit value and a first angle lower limit value, when the rotation angle of the driving member 101 is within the first angle interval threshold, and / or greater than the first angle upper limit value, and / or less than the first angle lower limit value, it is determined that the driving member 101 is rotated to a position, and according to the driving member 101 being rotated to the position, it can be indirectly considered that the material breaking member 102 is also moved to a position, at this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0104] It can be understood that, according to different relative positions between the driving member 101, the material breaking member 102 and the transmission channel 11, the rotation angle of the driving member 101 for driving the material breaking member 102 to enter and / or exit the transmission channel 11 will be different. In some embodiments, when the rotation angle of the driving member 101 is within the first angle interval threshold, the driving member 101 is rotated to a position, which can drive the material breaking member 102 to enter the transmission channel 11 and achieve shearing of the consumable, for example, 5° to 20°, for example, 10° to 30°; in other embodiments, according to the specific position relationship between the driving member 101, the material breaking member 102 and the transmission channel 11, when the rotation angle of the driving member 101 is greater than the first angle upper limit value and / or less than the first angle lower limit value, the driving member 101 is rotated to a position, which can drive the material breaking member 102 to enter the transmission channel 11 and achieve shearing of the consumable, for example, less than 10° or greater than 30°.

[0105] Further in combination with FIG. 9, in an embodiment, the sensor member 13 includes a first infrared sensor 1321. The driving member 101 is arranged to move relative to the first infrared sensor 1321, and the first infrared sensor 1321 is arranged on a movement path of the driving member 101.

[0106] It can be understood that the first infrared sensor 1321 is a kind of sensor based on infrared radiation and absorption characteristics, which can detect, measure and control the infrared radiation of an object, and can detect the reflection or transmission of infrared radiation to obtain information about the object to work.

[0107] In the present embodiment, FIG. 9 shows that the driving member 101 blocks the first infrared sensor 1321 after rotating; in other embodiments, the driving member 101 can also block the first infrared sensor 1321 after moving along a straight line or performing a composite motion of straight line motion and rotation.

[0108] In one embodiment, the first infrared sensor 1321 can be configured to be blocked by the driving member 101 and generate a corresponding first infrared blocking signal to detect the position of the driving member 101.

[0109] In one embodiment, when the range of the first infrared sensor 1321 being blocked is greater than or less than or equal to a first infrared blocking range threshold, it is determined that the driving member 101 moves to the position. According to the rotation of the driving member 101 to the position, it can be indirectly considered that the material breaking member 102 also moves to the position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0110] In the present embodiment, the first infrared blocking range threshold can be, for example, a blocking area. For example, when the first infrared sensor 1321 is completely blocked, it can be determined that the driving member 101 moves to the position. According to the rotation of the driving member 101 to the position, it can be indirectly considered that the material breaking member 102 also moves to the position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off. It can be understood that when the first infrared sensor 1321 is partially blocked, it can also be considered that the driving member 101 moves to the position. According to the rotation of the driving member 101 to the position, it can be indirectly considered that the material breaking member 102 also moves to the position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off. In a specific embodiment, when the area of the first infrared sensor 1321 being blocked is greater than half of the total area of the first infrared sensor 1321 emitting infrared signals, it can be considered that the driving member 101 moves to the position. According to the rotation of the driving member 101 to the position, it can be indirectly considered that the material breaking member 102 also moves to the position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off. By reserving some error or acceptable margin, the error in the process of processing, installation and assembly can be eliminated, which helps to improve the adaptability of the material breaking assembly 10.

[0111] In other embodiments, when the time of the first infrared sensor 1321 being blocked is greater than or less than or equal to a second infrared blocking range threshold, it is determined that the driving member 101 moves to the position. According to the rotation of the driving member 101 to the position, it can be indirectly considered that the material breaking member 102 also moves to the position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off. For example, when the time of the first infrared sensor 1321 being blocked is greater than 0.5 seconds, it is determined that the driving member 101 moves to the position.

[0112] It can be understood that by judging whether the driving member 101 passes through or does not pass through the corresponding position of the first infrared sensor 1321 during movement, or the time of passing through the corresponding position of the first infrared sensor 1321, whether the driving member 101 moves to the position can be determined. According to the rotation of the driving member 101 to the position, it can be indirectly considered that the material breaking member 102 also moves to the position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0113] Further in combination with FIG. 10, in an embodiment, the sensing member 13 comprises a first Hall sensor 1331. The driving member 101 is movably arranged relative to the first Hall sensor 1331, and the first Hall sensor 1331 can be configured to be blocked by the driving member 101 and generate a corresponding first Hall blocking signal to detect the position of the driving member 101.

[0114] It can be understood that the first Hall sensor 1331 is a sensor based on the Hall effect, which refers to the phenomenon that when a conductor or semiconductor material is placed in a magnetic field perpendicular to the direction of the current, a voltage difference will be generated on both sides perpendicular to the magnetic field and the current direction. This phenomenon is caused by the deflection of charge carriers under the action of the Lorentz force. Its working principle includes applying current, charge separation, forming Hall potential, signal processing, etc. It can sense and convert magnetic field changes into potential difference, and / or amplify the Hall potential and convert it into a usable current or voltage signal.

[0115] In the present embodiment, the first Hall sensor 1331 can be arranged between the driving member 101 and the nozzle assembly 12 of the nozzle module 1. Specifically, the first Hall sensor 1331 can be arranged on the frame 125 of the nozzle module 1, and the cutting member 10 and the nozzle assembly 12 are arranged at intervals and connected to the frame 125, respectively. During the movement of the driving member 101, the distance and position relative to the nozzle assembly 12 change, and thus the distance and position relative to the first Hall sensor 1331 change, thereby causing the first Hall sensor 1331 to generate a corresponding electromagnetic signal.

[0116] In an embodiment, when the range of the first Hall sensor 1331 being blocked is greater than or less than or equal to a first Hall blocking interval threshold, it is determined that the driving member 101 is moved into position. According to the rotation of the driving member 101 into position, it can be indirectly considered that the cutting member 102 is also moved into position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0117] In an embodiment, the first Hall blocking interval threshold is a blocking area. For example, when the first Hall sensor 1331 is fully blocked, it can be determined that the driving member 101 is moved to the position, and according to the driving member 101 being rotated to the position, it can be indirectly considered that the material breaking member 102 is also moved to the position, at this time, it is considered that the consumable in the transmission channel 11 can be cut off. It can be understood that when the first Hall sensor 1331 is partially blocked, it can also be considered that the driving member 101 is moved to the position, and according to the driving member 101 being rotated to the position, it can be indirectly considered that the material breaking member 102 is also moved to the position, at this time, it is considered that the consumable in the transmission channel 11 can be cut off. In a specific embodiment, when the area of the first Hall sensor 1331 blocked is greater than half of the total area of the first Hall sensor 1331 generating a Hall signal, it can be considered that the driving member 101 is moved to the position, and according to the driving member 101 being rotated to the position, it can be indirectly considered that the material breaking member 102 is also moved to the position, at this time, it is considered that the consumable in the transmission channel 11 can be cut off. By reserving some error or acceptable margin, errors in the process of processing, installation and assembly can be eliminated, which helps to improve the adaptability of the material breaking assembly 10.

[0118] Alternatively, when the time of the first Hall sensor 1331 being blocked is greater than, less than or equal to a second Hall blocking interval threshold, it is determined that the driving member 101 is moved to the position, and according to the driving member 101 being rotated to the position, it can be indirectly considered that the material breaking member 102 is also moved to the position, at this time, it is considered that the consumable in the transmission channel 11 can be cut off. For example, when the time of the first Hall sensor 1331 being blocked is greater than 0.5 seconds, it is determined that the driving member 101 is moved to the position.

[0119] It can be understood that by judging whether the driving member 101 passes through or does not pass through the corresponding position of the first Hall sensor 1331 during movement, or the time of passing through the corresponding position of the first Hall sensor 1331, whether the driving member 101 is moved to the position is determined, and according to the driving member 101 being rotated to the position, it can be indirectly considered that the material breaking member 102 is also moved to the position, at this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0120] Further in combination with FIG. 11, in an embodiment, the sensor member 13 includes a first displacement sensor 1341 for sensing the displacement of the driving member 101.

[0121] It can be understood that the first displacement sensor 1341 is a device for detecting the position or displacement change of an object, which can convert these physical quantities into electrical signals output, so as to realize real-time monitoring and feedback of the position, speed and other information of the object, and its working principle depends on different physical effects, such as inductance effect, capacitance effect, piezoelectric effect, etc.

[0122] In an embodiment, the first displacement sensor 1341 is arranged on the driving member 101.

[0123] Alternatively, the driving member 101 is movably disposed relative to the first displacement sensor 1341, and the first displacement sensor 1341 is disposed on a movement path of the driving member 101.

[0124] In an embodiment, the first displacement sensor 1341 is configured to detect a movement distance of the driving member 101, and the movement distance of the driving member 101 corresponds to a first distance interval threshold, the first distance interval threshold has a first distance upper limit value and a first distance lower limit value. When the movement distance of the driving member 101 is within the first distance interval threshold, and / or greater than the first distance upper limit value, and / or less than the first distance lower limit value, it is determined that the driving member 101 is rotated to a position. According to the driving member 101 being rotated to the position, it can be indirectly considered that the cutting member 102 is also moved to a position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0125] It can be understood that, according to different relative positions between the driving member 101, the cutting member 102 and the transmission channel 11, the movement distance of the driving member 101 for driving the cutting member 102 to enter and / or exit the transmission channel 11 will be different. In some embodiments, when the movement distance of the driving member 101 is within the first distance interval threshold, the driving member 101 is moved to a position to drive the cutting member 102 to enter the transmission channel 11 and achieve shearing of the consumable. In other embodiments, according to the specific positional relationship between the driving member 101, the cutting member 102 and the transmission channel 11, when the movement distance of the driving member 101 is greater than the first distance upper limit value and / or less than the first distance lower limit value, the driving member 101 is moved to a position to drive the cutting member 102 to enter the transmission channel 11 and achieve shearing of the consumable.

[0126] Further in combination with FIG. 12, in an embodiment, the sensor device 13 includes a first photoelectric sensor 1351. The first photoelectric sensor 1351 is configured to be disposed on the nozzle module 1, and the driving member 101 is movably disposed relative to the first photoelectric sensor 1351.

[0127] It can be understood that the first photoelectric sensor 1351 is a device for converting optical signals into electrical signals, and its working principle is based on the photoelectric effect, that is, when photons interact with matter, electrons are produced. When light shines on a photoelectric element, photons collide with electrons in the photoelectric element, making them gain energy and be excited, thereby generating a change in current or voltage, realizing the conversion of optical signals to electrical signals.

[0128] In an embodiment, the first photoelectric sensor 1351 can be configured to be blocked by the driving member 101 and generate a corresponding first photoelectric blocking signal to detect the position of the driving member 101.

[0129] In one embodiment, when the area blocked by the first photoelectric sensor 1351 is greater than, less than or equal to the threshold of the first photoelectric blocking interval, it is determined that the driving member 101 has moved into position. Based on the fact that the driving member 101 has rotated into position, it can be indirectly assumed that the material cutting member 102 has also moved into position. At this time, it is considered that the consumable in the transmission channel 11 can be cut off.

[0130] In this embodiment, the threshold value of the first photoelectric blocking interval is the blocking area.

[0131] In one embodiment, when the time the first photoelectric sensor 1351 is blocked is greater than, less than, or equal to the threshold of the second photoelectric blocking interval, it is determined that the driving member 101 has moved to the correct position. Based on the driving member 101 rotating to the correct position, it can be indirectly assumed that the material cutting member 102 has also moved to the correct position. At this time, it is considered that the consumable material in the transmission channel 11 can be cut off. It is understood that when the first photoelectric sensor 1351 is partially blocked, it can also be considered that the driving member 101 has moved to the correct position. Based on the driving member 101 rotating to the correct position, it can be indirectly assumed that the material cutting member 102 has also moved to the correct position. At this time, it is considered that the consumable material in the transmission channel 11 can be cut off. In a specific embodiment, when the area of ​​the first photoelectric sensor 1351 that is blocked is greater than half of the total area of ​​the first photoelectric sensor 1351 that generates the photoelectric signal, it can be considered that the driving member 101 has moved to the correct position. Based on the driving member 101 rotating to the correct position, it can be indirectly assumed that the material cutting member 102 has also moved to the correct position. At this time, it is considered that the consumable material in the transmission channel 11 can be cut off. By reserving some error or an acceptable margin, errors in the processing, installation and assembly processes can be eliminated, which helps to improve the adaptability of the material breakage assembly 10.

[0132] It is understandable that by judging whether the driving component 101 passes through or does not pass through the corresponding position of the first photoelectric sensor 1351 during the movement, or the time it takes to pass through the corresponding position of the first photoelectric sensor 1351, it can be determined whether the driving component 101 has moved to the correct position. Based on the fact that the driving component 101 has rotated to the correct position, it can be indirectly assumed that the material cutting component 102 has also moved to the correct position. At this time, it is assumed that the consumable in the transmission channel 11 can be cut off.

[0133] In one embodiment, the first photoelectric sensor 1351 is a grating-type photoelectric sensor, and / or the first photoelectric sensor 1351 is a capacitive photoelectric sensor.

[0134] In other embodiments, the first photoelectric sensor 1351 may also be other types of photoelectric sensors.

[0135] Referring further to Figure 13, in one embodiment, the sensor 13 includes a first electromagnetic sensor 1361. The drive member 101 is movably disposed relative to the first electromagnetic sensor 1361, and the first electromagnetic sensor 1361 is disposed on the movement path of the drive member 101.

[0136] It can be understood that the first electromagnetic sensor 1361 is a sensor for converting a measured physical quantity into an induced electromotive force, which mainly utilizes the principle of electromagnetic induction to achieve the purpose of speed measurement. When the measured object approaches or moves away from the first electromagnetic sensor 1361, the magnetic field distribution around the first electromagnetic sensor 1361 will change, thereby causing the change of the magnetic flux in the coil. According to Faraday's law of electromagnetic induction, the change of the magnetic flux will generate an induced electromotive force in the coil, thereby realizing the non-contact measurement of the measured object.

[0137] In an embodiment, the driving member 101 is configured to cause the magnetic field of the first electromagnetic sensor 1361 to change, so that the first electromagnetic sensor 1361 generates a first electromagnetic signal through magnetic field detection.

[0138] In an embodiment, the driving member 101 is configured to cause the induced current of the first electromagnetic sensor 1361 to change, so that the first electromagnetic sensor 1361 generates a second electromagnetic signal through induced current detection.

[0139] It can be understood that, according to the relative position between the driving member 101, the material breaking member 102 and the transmission channel 11, the position of the driving member 101 during the process of driving the material breaking member 102 to enter and / or exit the transmission channel 11 will be different. The first electromagnetic sensor 1361 can sense the change of the distance between the driving member 101 and the first electromagnetic sensor 1361, and generate a corresponding electrical signal to realize the in-place detection of the driving member 101.

[0140] Further in combination with FIGS. 14-16, in an embodiment, the material breaking assembly 10 further comprises a first reset member 14. The first reset member 14 is used to drive the driving member 101 to reset after movement, so that the material breaking member 102 exits the transmission channel 11.

[0141] It can be understood that the first reset member 14 and the driving member 101 have a force acting relationship, so that the first reset member 14 can apply a force to the driving member 101, so that the driving member 101 can be driven to move or have a tendency to move; the first reset member 14 is a reset structure that can be reset by elastic force, and / or a reset structure that can be reset by magnetic force.

[0142] Further in combination with FIG. 14, in an embodiment, the first reset member 14 comprises a first spring reset structure 141, and the first spring reset structure 141 is connected with and / or abuts against the driving member 101.

[0143] In an embodiment, the first spring reset structure 141 is arranged to be compressed and / or stretched along an elastic force direction, and at least one end of the first spring reset structure 141 along the elastic force direction is connected with the driving member 101 or abuts against the driving member 101.

[0144] For example, the first spring return structure 141 can be arranged on the side of the driving member 101 facing the transmission passage 11, and the first spring return structure 141 is compressed during the movement of the driving member 101 along the elastic direction towards the transmission passage 11. When the external force applied to the cutting assembly 10 is removed, the first spring return structure 141 can expand along the elastic direction under the action of its own elastic force and push the cutting assembly 10 to reset. It can be understood that the characteristics of the first spring return structure 141 that can store elastic force due to deformation and release the elastic force to return to its original state can help push the cutting assembly 10 to reset and improve the working efficiency of the cutting assembly 10.

[0145] In other embodiments, at least part of the first spring return structure 141 along the vertical elastic direction is guided and limited in position, so that when the first spring return structure 141 is compressed or stretched along the elastic direction, it will not deviate or dislocate due to its own deformation, so as to smoothly achieve its compression and expansion. It can be understood that appropriate limiting of the first spring return structure 141 can improve the accuracy of the cutting assembly 10.

[0146] Further in combination with FIG. 15, in an embodiment, the first reset member 14 includes a first torsion spring return structure 142, and the first torsion spring return structure 142 is connected with the driving member 101.

[0147] In an embodiment, the first torsion spring return structure 142 is connected with the rotating end of the driving member 101, and the first torsion spring return structure 142 is compressed or stretched following the rotation of the driving member 101.

[0148] It can be understood that when the driving member 101 drives the cutting member 102 to enter the transmission passage 11, the first torsion spring return structure 142 is compressed or stretched to store elastic force. When the external force applied to the driving member 101 is removed, the first torsion spring return structure 142 releases the elastic force and pushes the driving member 101 to reset and further drives the cutting member 102 to exit the transmission passage 11. The characteristics of the first torsion spring return structure 142 that can store elastic force due to deformation and release the elastic force to return to its original state can help push the cutting assembly 10 to reset and improve the working efficiency of the cutting assembly 10.

[0149] In an embodiment, the first torsion spring return structure 142 can be sleeved on the rotating shaft (not shown in the figure) of the driving member 101, and / or the end of the first torsion spring return structure 142 is clamped and limited by the housing (not shown in the figure) of the driving member 101 and the nozzle assembly 12, so as to achieve compression or stretching of the first torsion spring return structure 142. It can be understood that appropriate limiting of the first torsion spring return structure 142 can improve the accuracy of the cutting assembly 10.

[0150] Further in combination with Fig. 16, in an embodiment, the first reset member 14 comprises a first magnetic reset structure 143, which pushes the driving member 101 to reset by magnetic force.

[0151] In an embodiment, the first magnetic reset structure 143 comprises a first magnetic member 1431 and a second magnetic member 1432, the first magnetic member 1431 is connected with the driving member 101, and the second magnetic member 1432 is arranged in a spaced manner with the first magnetic member 1431.

[0152] In an embodiment, as shown in (a) of Fig. 16, the first magnetic member 1431 and the second magnetic member 1432 are arranged in a staggered manner along the direction from the driving member 101 to the transmission channel 11, and have the same magnetic pole arrangement. Alternatively, as shown in (b) of Fig. 16, the first magnetic member 1431 and the second magnetic member 1432 are arranged in a same row along the direction from the driving member 101 to the transmission channel 11, and have opposite magnetic pole arrangements.

[0153] It can be understood that, therefore, when the driving member 101 drives the material breaking member 102 to enter the transmission channel 11, there is a mutual repulsion trend between the first magnetic member 1431 and the second magnetic member 1432 to drive the material breaking assembly 10 to reset after the external force is removed.

[0154] In an embodiment, the first magnetic member 1431 and / or the second magnetic member 1432 is configured to be fixedly arranged to drive the material breaking assembly 10.

[0155] It can be understood that the first magnetic reset structure 143 can realize contact or non-contact reset by magnetic force, which is more flexible in spatial arrangement, thereby avoiding interference from other components, helping to arrange the material breaking assembly 10 in a small space, and making the overall structure more compact.

[0156] Further in combination with Fig. 17, in an embodiment, the material breaking member 102 is arranged in a sliding connection with the nozzle assembly 12 in the nozzle module 1. It can be understood that the nozzle assembly 12 can be provided with a sliding groove (not shown in the figure) which substantially matches the external contour of the material breaking member 102, and the material breaking member 102 is arranged in sliding connection through the sliding groove, realizing sliding cutting and retraction.

[0157] Further in combination with Fig. 18, in an embodiment, the material breaking member 102 is arranged in a rotary connection with the nozzle assembly 12 in the nozzle module 1. It can be understood that the material breaking member 102 can be movably connected with the nozzle assembly 12 through a rotary connection structure (not shown in the figure) such as a rotating shaft, so that the material breaking member 102 can be driven to rotate relative to the transmission channel 11 by external force, realizing cutting and retraction.

[0158] Further in combination with FIG. 4, in an embodiment, the cutting member 102 is configured to be arranged on the bracket 21 by the driving member 101, and the transmission channel 11 is movably arranged relative to the bracket 21. In other embodiments, the cutting member 102 can also be directly arranged on the bracket 21, and the connection mode can be fixed connection or hinged connection.

[0159] Further in combination with FIG. 17, in an embodiment, the cutting member 102 is configured to be capable of linear movement.

[0160] In the embodiment, the cutting member 102 moves linearly along the first direction X to enter the transmission channel 11, and realizes cutting of the consumable. In other embodiments, the cutting member 102 can also move linearly along the second direction Y or the third direction Z.

[0161] Further in combination with FIG. 18, in an embodiment, the cutting member 102 is configured to be capable of rotation.

[0162] In the embodiment, the cutting member 102 is configured to be capable of rotation in the plane formed by the first direction X and the second direction Y, so as to avoid interference of components in the third direction Z, and make the spatial layout of the cutting assembly 10 more reasonable. In other embodiments, the cutting member 102 can also be capable of rotation in the plane formed by the second direction Y and the third direction Z, or in the plane formed by the first direction X and the third direction Z, so as to avoid interference of components in the second direction Y, and make the spatial layout of the cutting assembly 10 more reasonable.

[0163] In other embodiments, the cutting member 102 can also be capable of linear movement and rotation, for example, capable of combined movement of linear movement and rotation in the plane formed by the first direction X and the second direction Y. By using the combined movement of linear movement and rotation, the movement trajectory of the cutting member 102 in space can be more finely controlled, so as to avoid interference of other components, and help to arrange the cutting assembly 10 in a small space, and make the overall structure more compact.

[0164] Further in combination with FIGS. 19 to 24, in an embodiment, the cutting assembly 10 further comprises a sensor 13, which is used to sense the movement state and / or position of the cutting member 102.

[0165] It can be understood that the sensor 13 can be various sensors 13 with different working principles and different working modes, which include but are not limited to angle sensors, infrared sensors, Hall sensors, displacement sensors, photoelectric sensors, and electromagnetic sensors.

[0166] It needs to be explained that the sensor 13 used to detect the driving member 101 and the sensor 13 used to detect the cutting member 102 can be the same or different, and no limitation is made to this.

[0167] Further in combination with FIG. 19, in an embodiment, the sensing device 13 comprises a second angle sensor 1312.

[0168] It can be understood that the second angle sensor 1312 is a device capable of measuring and monitoring the angular change of an object or system, which can be divided into various types according to different working principles and designs, including resistance type, rotary type, optical type, magnetic type, and capacitive type encoders, etc., which can convert physical angular change into electrical or digital signals for measurement and control. The second angle sensor 1312 can be the same as or different from the first angle sensor 1311, and can be the same sensor or a different sensor.

[0169] In an embodiment, the second angle sensor 1312 is arranged on the cutting member 102 for detecting the rotation angle of the cutting member 102. In this embodiment, the second angle sensor 1312 is configured to follow the movement of the cutting member 102. In other embodiments, the second angle sensor 1312 can also not be arranged on the cutting member 102 but connected to the cutting member 102 for following movement through other means.

[0170] In an embodiment, the rotation angle of the cutting member 102 corresponds to a second angle interval threshold, and the second angle interval threshold has a second angle upper limit value and a second angle lower limit value. When the rotation angle of the cutting member 102 is within the second angle interval threshold, and / or greater than the second angle upper limit value, and / or less than the second angle lower limit value, it is determined that the cutting member 102 is rotated to the position.

[0171] It can be understood that, according to the relative positions between the driving member 101, the cutting member 102 and the transmission channel 11, the rotation angle of the cutting member 102 entering and / or exiting the transmission channel 11 will be different. In some embodiments, when the rotation angle of the cutting member 102 is within the first angle interval threshold, the cutting member 102 enters the transmission channel 11 and realizes the shearing of the consumable, for example, 5° to 20°, for example, 10° to 30°; in other embodiments, according to the specific positional relationship between the driving member 101, the cutting member 102 and the transmission channel 11, when the rotation angle of the cutting member 102 is greater than the first angle upper limit value and / or less than the first angle lower limit value, the cutting member 102 enters the transmission channel 11 and realizes the shearing of the consumable, for example, less than 10° or greater than 30°.

[0172] Further in combination with FIG. 20, in an embodiment, the sensing device 13 comprises a second infrared sensor 1322. The cutting member 102 is movably arranged relative to the second infrared sensor 1322, and the second infrared sensor 1322 is arranged on the movement track of the cutting member 102.

[0173] It can be understood that the second infrared sensor 1322 is a sensor based on infrared radiation and absorption characteristics, which can detect, measure and control the infrared radiation of an object, and can detect the reflection or transmission of infrared radiation to obtain information about the object to work. The second infrared sensor 1322 can be the same as or different from the first infrared sensor 1321, and can be the same sensor or a different sensor.

[0174] In an embodiment, the second infrared sensor 1322 can be configured to be blocked by the cutting material 102 and generate a corresponding second infrared blocking signal to detect the position of the cutting material 102.

[0175] In an embodiment, when the range of the second infrared sensor 1322 being blocked is greater than or less than or equal to a third infrared blocking interval threshold, it is determined that the cutting material 102 is moved to the position, and at this time, it is considered that the cutting material 102 can cut off the consumables in the transmission channel 11.

[0176] In the embodiment, the third infrared blocking interval threshold is the blocking area. For example, when the second infrared sensor 1322 is completely blocked, it can be determined that the cutting material 102 is moved to the position, and at this time, it is considered that the cutting material 102 can cut off the consumables in the transmission channel 11. It can be understood that when the second infrared sensor 1322 is partially blocked, it can also be considered that the cutting material 102 is moved to the position, and at this time, it is considered that the cutting material 102 can cut off the consumables in the transmission channel 11. In a specific embodiment, when the area of the second infrared sensor 1322 being blocked is greater than half of the total area of the infrared signal emitted by the second infrared sensor 1322, it can be considered that the cutting material 102 is moved to the position, and at this time, it is considered that the cutting material 102 can cut off the consumables in the transmission channel 11. By reserving some error or acceptable margin, the error in the process, installation and assembly process can be eliminated, which helps to improve the adaptability of the cutting assembly 10.

[0177] In other embodiments, when the time of the second infrared sensor 1322 being blocked is greater than or less than or equal to a fourth infrared blocking interval threshold, it is determined that the cutting material 102 is moved to the position, and at this time, it is considered that the cutting material 102 can cut off the consumables in the transmission channel 11. For example, when the time of the second infrared sensor 1322 being blocked is greater than 0.5 seconds, it is determined that the cutting material 102 is moved to the position.

[0178] It can be understood that by judging whether the cutting material 102 passes through or does not pass through the corresponding position of the second infrared sensor 1322 during the movement process, or the time of passing through the corresponding position of the second infrared sensor 1322, whether the cutting material 102 is moved to the position can be determined, and at this time, it is considered that the cutting material 102 can cut off the consumables in the transmission channel 11.

[0179] Further in combination with FIG. 21, in an embodiment, the sensor assembly 13 includes a second Hall sensor 1332. The cutting member 102 is movably disposed relative to the second Hall sensor 1332, which can be configured to be blocked by the cutting member 102 and generate a corresponding second Hall blocking signal to detect the position of the cutting member 102.

[0180] It can be appreciated that the second Hall sensor 1332 is a Hall effect sensor, which is a transducer that converts a magnetic field into an electric voltage using the Hall effect. The Hall effect is the production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor resulting from a change to the magnetic field. The Hall effect is a consequence of the Lorentz force, which dominates the motion of charged particles in a magnetic field. The Hall effect includes the application of current, charge separation, Hall potential formation, signal processing, etc. The second Hall sensor 1332 can be the same as or different from the first Hall sensor 1331, and can be the same sensor or a different sensor.

[0181] In an embodiment, when the second Hall sensor 1332 is blocked for a time greater than or less than or equal to a third Hall blocking interval threshold, it is determined that the cutting member 102 is moved into position, at which time it is considered that the cutting member 102 can cut the consumable in the transmission channel 11.

[0182] In an embodiment, the third Hall blocking interval threshold is a blocking area. For example, when the second Hall sensor 1332 is completely blocked, it can be determined that the cutting member 102 is moved into position, at which time it is considered that the cutting member 102 can cut the consumable in the transmission channel 11. It can be appreciated that when the second Hall sensor 1332 is partially blocked, it can also be considered that the cutting member 102 is moved into position, at which time it is considered that the cutting member 102 can cut the consumable in the transmission channel 11. In a specific embodiment, when the second Hall sensor 1332 is blocked for an area greater than half of the total area of the second Hall sensor 1332 generating a Hall signal, it can be considered that the cutting member 102 is moved into position, at which time it is considered that the cutting member 102 can cut the consumable in the transmission channel 11. By reserving some error or acceptable margin, errors in the process of machining, installation and assembly can be eliminated, which helps to improve the adaptability of the cutting assembly 10.

[0183] In an embodiment, when the second Hall sensor 1332 is blocked for a time greater than or less than or equal to a fourth Hall blocking interval threshold, it is determined that the cutting member 102 is moved into position, at which time it is considered that the cutting member 102 can cut the consumable in the transmission channel 11. For example, when the second Hall sensor 1332 is blocked for a time greater than 0.5 seconds, it is determined that the cutting member 102 is moved into position.

[0184] It can be understood that, by judging whether the cutting piece 102 passes through the corresponding position of the second Hall sensor 1332 or not during the movement, or the time when the cutting piece 102 passes through the corresponding position of the second Hall sensor 1332, it is determined whether the cutting piece 102 is moved to the position, at which time it is considered that the cutting piece 102 can cut off the consumable in the transmission channel 11.

[0185] Further in combination with FIG. 22, in an embodiment, the sensing device 13 includes a second displacement sensor 1342 for sensing the displacement of the cutting piece 102.

[0186] It can be understood that the second displacement sensor 1342 is a device for detecting the position or displacement change of an object, which can convert these physical quantities into electrical signals output, so as to realize the real-time monitoring and feedback of the position, speed and other information of the object. The working principle of the second displacement sensor 1342 depends on different physical effects, such as inductance effect, capacitance effect, piezoelectric effect, etc. The second displacement sensor 1342 can be the same as or different from the first displacement sensor 1341, and can be the same sensor or different sensors.

[0187] In an embodiment, the second displacement sensor 1342 is arranged on the cutting piece 102.

[0188] Alternatively, the cutting piece 102 is movably arranged relative to the second displacement sensor 1342, and the second displacement sensor 1342 is arranged on the movement path of the cutting piece 102.

[0189] In an embodiment, the second displacement sensor 1342 is used to detect the movement distance of the cutting piece 102, and the range of the movement distance of the cutting piece 102 corresponds to a second distance interval threshold value, the second distance interval threshold value has a second distance upper limit value and a second distance lower limit value. When the movement distance of the cutting piece 102 is within the second distance interval threshold value, and / or greater than the second distance upper limit value, and / or less than the second distance lower limit value, it is determined that the cutting piece 102 is rotated to the position, at which time it is considered that the cutting piece 102 can cut off the consumable in the transmission channel 11.

[0190] It can be understood that, according to the relative positions between the driving piece 101, the cutting piece 102 and the transmission channel 11, the movement distance of the cutting piece 102 entering and / or exiting the transmission channel 11 will be different. In some embodiments, when the movement distance of the cutting piece 102 is within a third distance interval threshold value, the cutting piece 102 enters the transmission channel 11 and realizes the shearing of the consumable; in other embodiments, according to the specific positional relationship between the driving piece 101, the cutting piece 102 and the transmission channel 11, when the movement distance of the cutting piece 102 is greater than the first distance upper limit value and / or less than the first distance lower limit value, the cutting piece 102 enters the transmission channel 11 and realizes the shearing of the consumable.

[0191] Further in combination with FIG. 23, in an embodiment, the sensing device 13 includes a second photoelectric sensor 1352. The second photoelectric sensor 1352 is configured to be disposed on the nozzle module 1, and the cutting device 102 is movably disposed relative to the second photoelectric sensor 1352.

[0192] It can be understood that the second photoelectric sensor 1352 is a device for converting a light signal into an electrical signal, and its working principle is based on the photoelectric effect, that is, when photons interact with matter, electrons are generated. When light shines on a photoelectric element, photons collide with electrons in the photoelectric element, making them gain energy and be excited, thereby generating a change in current or voltage, realizing the conversion of a light signal into an electrical signal. The second photoelectric sensor 1352 can be the same as or different from the first photoelectric sensor 1351, and can be the same sensor or a different sensor.

[0193] In an embodiment, the second photoelectric sensor 1352 can be configured to be blocked by the cutting device 102 and generate a corresponding second photoelectric blocking signal to detect the position of the cutting device 102.

[0194] In an embodiment, when the range of the second photoelectric sensor 1352 being blocked is greater than or less than or equal to a third photoelectric blocking interval threshold, it is determined that the cutting device 102 is moved to a position, and at this time, it is considered that the cutting device 102 can cut the consumable in the transmission channel 11.

[0195] In the present embodiment, the third photoelectric blocking interval threshold is a blocking area.

[0196] In an embodiment, when the time of the second photoelectric sensor 1352 being blocked is greater than or less than or equal to a fourth photoelectric blocking interval threshold, it is determined that the cutting device 102 is moved to a position, and at this time, it is considered that the cutting device 102 can cut the consumable in the transmission channel 11. It can be understood that when the second photoelectric sensor 1352 is partially blocked, it can also be considered that the cutting device 102 is moved to a position, and at this time, it is considered that the cutting device 102 can cut the consumable in the transmission channel 11. In a specific embodiment, when the area of the second photoelectric sensor 1352 being blocked is greater than half of the total area of the second photoelectric sensor 1352 generating a photoelectric signal, it can be considered that the cutting device 102 is moved to a position, and at this time, it is considered that the cutting device 102 can cut the consumable in the transmission channel 11. By reserving some error or acceptable margin, errors in the process of machining, installation and assembly can be eliminated, which helps to improve the adaptability of the cutting assembly 10.

[0197] It can be understood that by judging whether the cutting piece 102 passes through or does not pass through the corresponding position of the second photoelectric sensor 1352 during movement, or the time of passing through the corresponding position of the second photoelectric sensor 1352, it is judged whether the cutting piece 102 moves to the position, at which time it is considered that the cutting piece 102 can cut off the consumable in the transmission channel 11.

[0198] In an embodiment, the second photoelectric sensor 1352 is a grating photoelectric sensor, and / or the second photoelectric sensor 1352 is a capacitive photoelectric sensor.

[0199] In other embodiments, the second photoelectric sensor 1352 can also be other types of photoelectric sensors.

[0200] Further in combination with FIG. 24, in an embodiment, the sensor device 13 includes a second electromagnetic sensor 1362. The cutting piece 102 is movably arranged relative to the second electromagnetic sensor 1362, and the second electromagnetic sensor 1362 is arranged on the movement path of the cutting piece 102.

[0201] It can be understood that the second electromagnetic sensor 1362 is a sensor that converts the measured physical quantity into an induced electromotive force, which mainly uses the principle of electromagnetic induction to achieve the purpose of speed measurement. When the measured object approaches or moves away from the second electromagnetic sensor 1362, it will change the magnetic field distribution around the second electromagnetic sensor 1362, thereby causing the change of magnetic flux in the coil. According to Faraday's law of electromagnetic induction, such a change in magnetic flux will produce an induced electromotive force in the coil, thereby realizing non-contact measurement of the measured object. The second electromagnetic sensor 1362 and the first electromagnetic sensor 1361 can be the same or different, and can be the same sensor or different sensors.

[0202] In an embodiment, the cutting piece 102 is configured to cause a change in the magnetic field of the second electromagnetic sensor 1362, so that the second electromagnetic sensor 1362 generates a third electromagnetic signal through magnetic field detection.

[0203] In an embodiment, the cutting piece 102 is configured to cause a change in the induced current of the second electromagnetic sensor 1362, so that the second electromagnetic sensor 1362 generates a fourth electromagnetic signal through induced current detection.

[0204] It can be understood that according to different relative positions between the cutting piece 102 and the transmission channel 11, the position of the cutting piece 102 during the process of entering and / or exiting the transmission channel 11 will be different. The second electromagnetic sensor 1362 can sense the change in the distance of the cutting piece 102 from it, and generate a corresponding electrical signal to realize the detection of the cutting piece 102 to the position.

[0205] Further in combination with the illustrations of FIGS. 25-27, in an embodiment, the material breaking assembly 10 further comprises a second reset member 15, the second reset member 15 is configured to drive the material breaking member 102 to reset after the movement, so that the material breaking member 102 exits the transmission channel 11.

[0206] It can be understood that the second reset member 15 and the material breaking member 102 have a force acting relationship, so that the second reset member 15 can apply force to the material breaking member 102, so that the material breaking member 102 can be driven to move or have a tendency to move; the second reset member 15 is a reset structure that can be reset by elastic force, and / or is a reset structure that can be reset by magnetic force.

[0207] Further in combination with the illustration of FIG. 25, in an embodiment, the second reset member 15 comprises a second spring reset structure 151, the second spring reset structure 151 is connected with and / or abuts against the material breaking member 102.

[0208] In an embodiment, the second spring reset structure 151 is arranged to be compressed and / or stretched along the elastic force direction, and at least one end of the second spring reset structure 151 along the elastic force direction is connected with or abuts against the material breaking member 102.

[0209] For example, the second spring reset structure 151 can be arranged on the side of the material breaking member 102 facing the transmission channel 11, the second spring reset structure 151 is compressed in the process of the material breaking member 102 moving along the elastic force direction towards the transmission channel 11, and when the external force applied to the material breaking assembly 10 is removed, the second spring reset structure 151 can expand along the elastic force direction under the action of its own elastic force and push the material breaking assembly 10 to reset. It can be understood that the characteristics of the second spring reset structure 151 being able to store elastic force due to deformation and being able to release the elastic force to return to its original state help to push the material breaking assembly 10 to reset and improve the working efficiency of the material breaking assembly 10.

[0210] In an embodiment, the second reset member 15 comprises a second spring reset structure 151, the second spring reset structure 151 is arranged to be compressed and / or stretched along the elastic force direction, and at least part of the second spring reset structure 151 along the vertical elastic force direction is guided and limited. It can be understood that appropriate limiting of the second spring reset structure 151 can improve the accuracy of the material breaking assembly 10.

[0211] Further in combination with the illustration of FIG. 26, in an embodiment, the second reset member 15 comprises a second torsion spring reset structure 152, the second torsion spring reset structure 152 is connected with the material breaking member 102, and the second torsion spring reset structure 152 is compressed or stretched following the movement of the material breaking member 102.

[0212] It can be understood that when the cutting piece 102 enters the transmission channel 11, the second torsion spring reset structure 152 is compressed or stretched to store elastic force, and when the external force applied to the driving piece 101 and / or the cutting piece 102 is removed, the second torsion spring reset structure 152 releases the elastic force and pushes the cutting piece 102 out of the transmission channel 11. The characteristics of the second torsion spring reset structure 152 that can store elastic force due to deformation and can release the elastic force to return to its original state help to reset the cutting assembly 10 and improve the working efficiency of the cutting assembly 10.

[0213] In an embodiment, the second torsion spring reset structure 152 can be sleeved on the rotating shaft of the cutting piece 102, and / or the ends of the second torsion spring reset structure 152 are clamped and limited by the cutting piece 102 and the shell of the nozzle assembly 12 to achieve compression or stretching of the second torsion spring reset structure 152. It can be understood that appropriate limiting of the second torsion spring reset structure 152 can improve the precision of the cutting assembly 10.

[0214] Further in combination with FIG. 27, in an embodiment, the second reset piece 15 includes a second magnetic reset structure 153, which pushes the cutting piece 102 to reset by magnetic force.

[0215] In an embodiment, the second magnetic reset structure 153 includes a third magnetic piece 1531 and a fourth magnetic piece 1532, the second magnetic piece 1432 is connected with the cutting piece 102, and the third magnetic piece 1531 and the fourth magnetic piece 1532 are arranged in a staggered manner along the direction from the cutting piece 102 to the transmission channel 11 and have the same magnetic pole arrangement. Alternatively, as shown in (b) of FIG. 27, the third magnetic piece 1531 and the fourth magnetic piece 1532 are arranged in the same row along the direction from the cutting piece 102 to the transmission channel 11 and have opposite magnetic pole arrangements.

[0216] In an embodiment, as shown in (a) of FIG. 27, the third magnetic piece 1531 and the fourth magnetic piece 1532 are arranged in a staggered manner along the direction from the cutting piece 102 to the transmission channel 11 and have the same magnetic pole arrangement. Alternatively, as shown in (b) of FIG. 27, the third magnetic piece 1531 and the fourth magnetic piece 1532 are arranged in the same row along the direction from the cutting piece 102 to the transmission channel 11 and have opposite magnetic pole arrangements.

[0217] It can be understood that therefore when the cutting piece 102 enters the transmission channel 11, there is a mutual repulsion trend between the third magnetic piece 1531 and the fourth magnetic piece 1532 to drive the cutting assembly 10 to reset after the external force is removed.

[0218] In an embodiment, the third magnetic piece 1531 and / or the fourth magnetic piece 1532 are configured to be fixedly arranged to drive the cutting assembly 10.

[0219] It can be understood that the second magnetic reset structure 153 can achieve contact or non-contact reset by magnetic force, which is more flexible in spatial arrangement, thereby avoiding interference from other components, helping to arrange the cutting assembly 10 in a small space, and making the overall structure more compact.

[0220] As shown in FIGS. 28-29, the present application provides a nozzle module 1 having a transmission channel 11 for transmitting a consumable (not shown), the nozzle module 1 further comprising a first support 31, a cutting assembly 32, a feeding assembly 33, and a hot end 34. The cutting assembly 32, the feeding assembly 33, and the hot end 34 are respectively connected to the first support 31, and the transmission channel 11 passes through the first support 31, the feeding assembly 33, and the hot end 34 along a feeding direction H. The feeding assembly 33 is configured to deliver the consumable, the hot end 34 is configured to heat the consumable, and the cutting assembly 32 is configured to cut the consumable.

[0221] In an embodiment, the cutting assembly 32 comprises a cutting member 320 and a driving member 321, the cutting member 320 is drivingly connected to the driving member 321, and the cutting member 320 is configured to selectively enter the transmission channel 11 to shear the consumable located in the transmission channel 11.

[0222] In an embodiment, the cutting member 320 comprises a first moving member 322, a first reset mechanism 323, and a cutting mechanism 325, the driving member 321 is rotationally connected to the first support 31, the first moving member 322 is movably connected to the first support 31, the first reset mechanism 323 connects the first moving member 322 and the first support 31, and the cutting mechanism 325 is connected to the first moving member 322. The driving member 321 is configured to move the first moving member 322 between a first position and a second position, and when moving from the first position to the second position, the first moving member 322 drives the cutting mechanism 325 to enter the transmission channel 11 from a tool feeding direction T, the feeding direction H intersects the tool feeding direction T, and the first reset mechanism 323 provides a reset force to return the first moving member 322 to the first position by magnetic force and / or elastic force.

[0223] The first position is a position where the first moving member 322 is away from the transmission channel 11 and the cutting mechanism 325 is located outside the transmission channel 11, and the second position is a position where the first moving member 322 is close to the transmission channel 11 and the cutting mechanism 325 can be located in the transmission channel 11.

[0224] It can be understood that in the nozzle module 1 of the present application, the driving member 321 is rotationally connected to the first support 31, so that the driving member 321 can be driven to rotate relative to the first support 31; the first moving member 322 is connected to the cutting mechanism 325 and is arranged closer to the transmission channel 11 than the driving member 321, the first moving member 322 can be driven by the driving member 321 to push the cutting mechanism 325 to intrude into the transmission channel 11 to cut the consumable; the first reset mechanism 323 connects the first moving member 322 and the first support 31, and the first reset mechanism 323 drives the first moving member 322 to drive the cutting mechanism 325 to exit the transmission channel 11 by magnetic force and / or elastic force, so that the first moving member 322 and the cutting mechanism 325 are reset, facilitating subsequent processing.

[0225] In the embodiment, the material breaking assembly 32 is arranged between the feeding assembly 33 and the hot end 34, the transmission channel 11 extends through the feeding assembly 33 and the hot end 34 in the feeding direction H, and the material breaking mechanism 325 of the material breaking assembly 32 invades or exits the region between the feeding assembly 33 and the hot end 34 in the feeding direction T. In other embodiments, the material breaking assembly 32 can be arranged on the side of the feeding assembly 33 away from the hot end 34.

[0226] It can be understood that the feeding direction H can be the direction in which the transmission channel 11 extends, and the feeding direction T can be the direction intersecting the feeding direction H. In the embodiment, the transmission channel 11 extends in a straight line, and the feeding direction H corresponds to the axial direction of the transmission channel 11. In other embodiments, the feeding direction H can change according to the arrangement of the transmission channel 11, and different sections of the transmission channel 11 can have different directions or extension forms, which will not be described here. In the embodiment, the feeding direction T is perpendicular to the feeding direction H, and the feeding direction T corresponds to the radial direction of the transmission channel 11. In other embodiments, the feeding direction T can be arranged at other angles intersecting the feeding direction H, which will not be described here.

[0227] In an embodiment, the feeding assembly 33 at least includes a feeding driving part 331 and an extrusion gear 332, the feeding driving part 331 is drivingly connected with the extrusion gear 332, the transmission channel 11 passes through the extrusion gear 332, and the extrusion gear 332 clamps and feeds the consumable to the hot end 34. It can be understood that the specific structure of the feeding driving part 331 and the pair of extrusion gears 332 can be a known and feasible scheme, such as a driving motor, a driving wheel and a driven wheel, which will not be described here.

[0228] In an embodiment, the hot end 34 at least includes a heat dissipation part 341, a heating part 342 and a nozzle part 343, the heat dissipation part 341 and the heating part 342 are respectively connected with the nozzle part 343. The heating part 342 can heat the nozzle part 343 to heat and melt the consumable located therebetween, and the heat dissipation part 341 is thermally coupled with the nozzle part 343 and / or the heating part 342 to dissipate heat of the hot end 34. It can be understood that the specific structure of the heat dissipation part 341, the heating part 342 and the nozzle part 343 can be a known and feasible scheme, which will not be described here.

[0229] Further in combination with FIGS. 29-31, in an embodiment, the driving member 321 includes a first end portion 3211, a second end portion 3212, and a force applying portion 3213 arranged in sequence. The first end portion 3211 is rotationally connected to the first support 31 via a rotation shaft 3214, and the second end portion 3212 is configured to be driven to rotate the driving member 321 along the rotation shaft 3214. The force applying portion 3213 is located between the first end portion 3211 and the second end portion 3212, and is located on a side of the driving member 321 facing the first moving member 322 and the transmission channel 11. The force applying portion 3213 is in contact with the first moving member 322, and is configured to push the first moving member 322.

[0230] In the present embodiment, the side surface 3225 of the first support 31 has an opening structure 313, and the length direction of the opening structure 313 is substantially along the feeding direction H of the transmission channel 11. The driving member 321 is arranged substantially along the feeding direction H of the transmission channel 11, and is matchedly arranged at the opening structure 313. The first end portion 3211 has a substantially arc-shaped outer surface, and is accommodated in an arc-shaped groove of the first support 31. The rotation shaft 3214 penetrates the first support 31 and the first end portion 3211, so that the first end portion 3211 can rotate relative to the first support 31. The second end portion 3212 is arranged at one end of the driving member 321, and the force applying portion 3213 can be a structure protruding towards the side where the first moving member 322 is located.

[0231] It can be understood that the second end portion 3212 can move to collide with other units (e.g., the Z-axis support of the 3D printing device 2) along with the nozzle module 1. After being collided, the second end portion 3212 is driven to move towards the side where the transmission channel 11 is located. The driving member 321 rotates around the connection part of the first end portion 3211 and the rotation shaft 3214 towards the side where the transmission channel 11 is located, and then the force applying portion 3213 located between the first end portion 3211 and the second end portion 3212 moves towards the side where the transmission channel 11 is located, so as to push the first moving member 322 and the material breaking mechanism 325 to move towards the transmission channel 11.

[0232] In an embodiment, the nozzle module 1 further includes a second reset mechanism 324, which is a torsion spring. The second reset mechanism 324 is sleeved on the rotation shaft 3214 and arranged between the rotation shaft 3214 and the first end portion 3211. The second reset mechanism 324 is configured to be in a compressed state when the material breaking mechanism 325 intrudes into the transmission channel 11.

[0233] It can be understood that the first end portion 3211 can be a hollow structure (not shown in the figure), so that the shaft 3214 and the shell of the first end portion 3211 have a gap (not shown in the figure) capable of accommodating the torsion spring. The torsion spring is arranged in the gap, and the posture of the torsion spring is adjusted so that the torsion spring is in a compressed state when the cutting mechanism 325 invades the transmission channel 11. Therefore, when the force applied to the driving member 321 to deflect it towards the side where the transmission channel 11 is located disappears, the driving member 321 can be reset under the elastic driving of the second reset mechanism 324, thereby improving the driving accuracy of the driving member 321 and improving the cutting accuracy of the consumables.

[0234] In an embodiment, the first support 31 has a bottom end 312, and the first moving member 322 is arranged on the bottom end 312. The first moving member 322 is provided with a guide hole 3226 penetrating in the feeding direction H of the transmission channel 11, and a guide column 3227 is arranged to penetrate the guide hole 3226 and fixedly connected to the first support 31 through the bottom end 312. The first moving member 322 is configured to move along the feed direction T, and the guide column 3227 is configured to be accommodated in the guide hole 3226 when the first moving member 322 moves along the feed direction T.

[0235] In an embodiment, the first moving member 322 includes a force receiving end 3221 and a connecting end 3222 arranged at intervals along the feed direction T. The force receiving end 3221 is configured to contact the driving member 321, the connecting end 3222 is configured to connect the cutting mechanism 325, and the guide hole 3226 is located between the force receiving end 3221 and the connecting end 3222.

[0236] In the embodiment, the cutting mechanism 325 is a blade, one end of the cutting mechanism 325 is inserted into the connecting end 3222 and fixedly connected to the first moving member 322, one end of the cutting mechanism 325 is a blade head 3251 for invading the transmission channel 11 to cut the consumables, and the blade head 3251 of the cutting mechanism 325 is designed to be relatively wide and flat along the feed direction T. Specifically, the blade angle of the blade head 3251 can be 15° to 60°, and further can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, or 55°. It can be understood that within the range, the smaller the blade angle, the smaller the cross-sectional area of the blade head 3251, the greater the corresponding shearing force, and the easier it is to cut the consumables; at the same time, within the range, the greater the blade angle, the higher the strength of the blade head 3251, and the better the durability.

[0237] In an embodiment, the first moving piece 322 comprises a top surface 3223, a bottom surface 3224, and two side surfaces 3225. The top surface 3223 and the bottom surface 3224 are arranged at opposite sides of the first moving piece 322, and the two side surfaces 3225 are arranged at opposite sides of the first moving piece 322. The top surface 3223, the bottom surface 3224, and the two side surfaces 3225 are arranged between the force receiving end 3221 and the connecting end 3222. The bottom surface 3224 is in contact with the bottom end 312 and is slidable relative to the bottom end 312, and the two side surfaces 3225 are slidable relative to the first support 31. A guide hole 3226 penetrates the top surface 3223 and the bottom surface 3224 along the feeding direction H of the transmission channel 11. The guide hole 3226 has a first accommodating cavity 32261 and a second accommodating cavity 32262 that are in communication. The first accommodating cavity 32261 has a smaller hole diameter than the second accommodating cavity 32262, and the second accommodating cavity 32262 is arranged closer to the top surface 3223 than the first accommodating cavity 32261. A guide column 3227 is in the shape of a bolt, comprising a screw rod 32271 and a nut 32272. The nut 32272 has an outer diameter larger than that of the screw rod 32271. The screw rod 32271 is fixedly connected to the bottom end 312 through the first accommodating cavity 32261, and the nut 32272 is accommodated in the second accommodating cavity 32262. The length of the first accommodating cavity 32261 along the feeding direction T is greater than the outer diameter of the screw rod 32271, and the length of the second accommodating cavity 32262 along the feeding direction T is greater than the outer diameter of the nut 32272.

[0238] It can be understood that, through cooperation of the guide column 3227, the guide hole 3226, and the bottom end 312, the first moving piece 322 is movably connected to the first support 31, and the first moving piece 322 can be guided and reciprocated along the feeding direction T. Specifically, the force applying end 3213 moves toward the side where the transmission channel 11 is located, the force applying end 3213 is in contact with the force receiving end 3221 and pushes the first moving piece 322. The first moving piece 322 moves along the feeding direction T toward the side where the transmission channel 11 is located under cooperation of the guide column 3227, the guide hole 3226, and the bottom end 312, and further drives the cutter head 3251 of the cutting mechanism 325 to intrude into the transmission channel 11 to cut the consumable.

[0239] In the present embodiment, the driving piece 321 and the first moving piece 322 are arranged separately, and the force applying end 3213 and the force receiving end 3221 are in separable contact. In other embodiments, the driving piece 321 and the first moving piece 322 can also be arranged integrally, and the force applying end 3213 and the force receiving end 3221 are connected.

[0240] Further in combination with FIGS. 32-34, in an embodiment, the first reset mechanism 323 drives the first moving piece 322 to reset by magnetic force. The first reset mechanism 323 comprises a first magnetic mechanism 3231 and a second magnetic mechanism 3232, the first magnetic mechanism 3231 is connected with the first moving piece 322, the second magnetic mechanism 3232 is connected with the first support 31, the first magnetic mechanism 3231 and the second magnetic mechanism 3232 are movably arranged with each other, and the first magnetic mechanism 3231 and the second magnetic mechanism 3232 are configured such that when the cutting-off mechanism 325 intrudes into the transmission channel 11, the repulsive force between the first magnetic mechanism 3231 and the second magnetic mechanism 3232 is greater than the attractive force between the first magnetic mechanism 3231 and the second magnetic mechanism 3232.

[0241] It can be understood that the first magnetic mechanism 3231 is connected with the first moving piece 322 and can act as a force receiving whole, the second magnetic mechanism 3232 is connected with the first support 31 and can act as a force receiving whole, the first magnetic mechanism 3231 and the second magnetic mechanism 3232 are movably arranged with each other, so that the first moving piece 322 can be driven by the first reset mechanism 323 to move relatively to the first support 31. When the cutting-off mechanism 325 intrudes into the transmission channel 11, the repulsive force between the first magnetic mechanism 3231 and the second magnetic mechanism 3232 is greater than the attractive force between the first magnetic mechanism 3231 and the second magnetic mechanism 3232, so that when the external force applied to the first moving piece 322 by the driving piece 321 is removed or reduced, the first moving piece 322 moves away from the transmission channel 11 under the action of the repulsive force between the first magnetic mechanism 3231 and the second magnetic mechanism 3232, so as to make the cutting-off mechanism 325 exit the transmission channel 11.

[0242] In an embodiment, the first moving piece 322 is configured to move in the feed direction T to drive the cutting-off mechanism 325 to intrude or exit the transmission channel 11. The first magnetic mechanism 3231 and the second magnetic mechanism 3232 are arranged side by side along the feed direction T, the first magnetic mechanism 3231 comprises a first magnetic pole 32311 and a second magnetic pole 32312, the first magnetic pole 32311 is arranged closer to the transmission channel 11 than the second magnetic pole 32312 along the feed direction T, the second magnetic mechanism 3232 comprises a third magnetic pole 32321 and a fourth magnetic pole 32322, the third magnetic pole 32321 is arranged closer to the transmission channel 11 than the fourth magnetic pole 32322 along the feed direction T. The first magnetic pole 32311 and the third magnetic pole 32321 are same magnetic poles, and the second magnetic pole 32312 and the fourth magnetic pole 32322 are same magnetic poles.

[0243] In the embodiment, the first magnetic mechanism 3231 and the second magnetic mechanism 3232 are bar-shaped permanent magnets with substantially equal lengths, the length directions of the first magnetic mechanism 3231 and the second magnetic mechanism 3232 are substantially parallel to the feed direction T, and the second magnetic mechanism 3232 is closer to the transmission channel 11 than the first magnetic mechanism 3231 along the feed direction T. That is, the third magnetic pole 32321 is closer to the transmission channel 11 than the first magnetic pole 32311 along the feed direction T, and the fourth magnetic pole 32322 is closer to the transmission channel 11 than the second magnetic pole 32312 along the feed direction T.

[0244] It can be understood that, when the material breaking mechanism 325 invades the transmission channel 11, the first magnetic pole 32311 and the third magnetic pole 32321 are substantially corresponding in position, the first magnetic pole 32311 and the third magnetic pole 32321 are same-name magnetic poles, and the first magnetic pole 32311 and the third magnetic pole 32321 are close to each other, so that a larger repulsive force exists between the first magnetic pole 32311 and the third magnetic pole 32321; at the same time, the second magnetic pole 32312 and the fourth magnetic pole 32322 are substantially corresponding in position, the second magnetic pole 32312 and the fourth magnetic pole 32322 are same-name magnetic poles, and the second magnetic pole 32312 and the fourth magnetic pole 32322 are close to each other, so that a larger repulsive force exists between the second magnetic pole 32312 and the fourth magnetic pole 32322. That is, a larger repulsive force exists between the first magnetic mechanism 3231 and the second magnetic mechanism 3232, and the second magnetic mechanism 3232 is closer to the transmission channel 11 than the first magnetic mechanism 3231, so that the first moving piece 322 connected with the first magnetic mechanism 3231 has a tendency to move away from the transmission channel 11 due to the repulsive force.

[0245] In an embodiment, the first reset mechanism 323 is arranged between the driving piece 321 and the material breaking mechanism 325, the first magnetic pole 32311 and the second magnetic pole 32312 are different-name magnetic poles, and the third magnetic pole 32321 and the fourth magnetic pole 32322 are different-name magnetic poles. The first magnetic mechanism 3231 and the second magnetic mechanism 3232 are configured such that, when the material breaking mechanism 325 invades the transmission channel 11, the first magnetic pole 32311 and the third magnetic pole 32321 are arranged side by side along the feed direction T, and / or the second magnetic pole 32312 and the fourth magnetic pole 32322 are arranged side by side along the feed direction T.

[0246] It can be understood that when the external force applied by the driving member 321 to the first moving member 322 is removed or reduced, the first moving member 322 moves away from the side where the transmission channel 11 is located under the repulsive force between the first magnetic mechanism 3231 and the second magnetic mechanism 3232, so that the material breaking mechanism 325 exits the transmission channel 11 until the first magnetic pole 32311 and the third magnetic pole 32321 are misaligned, and / or the second magnetic pole 32312 and the fourth magnetic pole 32322 are misaligned, and the positions of the first magnetic pole 32311 and the fourth magnetic pole 32322 correspond. Since the first magnetic pole 32311 and the fourth magnetic pole 32322 are opposite poles, there is a magnetic attraction between the first magnetic pole 32311 and the fourth magnetic pole 32322, and the first magnetic mechanism 3231 and the second magnetic mechanism 3232 tend to be in a position where the first magnetic pole 32311 and the fourth magnetic pole 32322 are close to each other, so that the first moving member 322 connected to the first magnetic mechanism 3231 has a substantially determined reset position, thereby improving the accuracy of each reset.

[0247] In an embodiment, the first support 31 has an inner side end 311 which is arranged to be spaced apart from the transmission channel 11. The first moving member 322 includes a first accommodating hole 3220 which is arranged on the side of the first moving member 322 facing the inner side end 311. The first magnetic mechanism 3231 is accommodated in the first accommodating hole 3220. The inner side end 311 is provided with a second accommodating hole 3110 on the side facing the first moving member 322, and the second magnetic mechanism 3232 is accommodated in the second accommodating hole 3110.

[0248] In this embodiment, the first accommodating hole 3220 is arranged on the side surface 3225 of the first moving member 322, and the side surface 3225 of the first moving member 322 where the accommodating hole is arranged is arranged to face the inner side end 311. The sizes of the first accommodating hole 3220 and the second accommodating hole 3110 are matched with the sizes of the first magnetic mechanism 3231 and the second magnetic mechanism 3232 respectively, so as to avoid the first magnetic mechanism 3231 and the second magnetic mechanism 3232 from sliding in the first accommodating hole 3220 and the second accommodating hole 3110. The first magnetic pole 32311 and the second magnetic pole 32312 are one of N pole and S pole respectively, and the third magnetic pole 32321 and the fourth magnetic pole 32322 are also one of N pole and S pole respectively.

[0249] It can be understood that "same name magnetic poles" refer to two magnetic poles being N poles or S poles, and same name magnetic poles repel each other; "opposite name magnetic poles" refer to one of the two magnetic poles being an N pole and the other being an S pole, and opposite name magnetic poles attract each other.

[0250] Further in combination with FIGS. 35-37, in an embodiment, the first reset mechanism 323 drives the first moving piece 322 to reset by elastic force, and the first reset mechanism 323 comprises a first elastic piece 3233. The first moving piece 322 is configured to move along a feeding direction T, the first elastic piece 3233 is clamped between the first moving piece 322 and the first support 31 along the feeding direction T, and the first elastic piece 3233 is configured to be in a compressed state when the cutting mechanism 325 intrudes into the transmission channel 11.

[0251] In the embodiment, the first elastic piece 3233 is a spring, and in other embodiments, the first elastic piece 3233 can also be an elastic rubber rod or other structure capable of deforming and storing and releasing elastic force. It can be understood that the first elastic piece 3233 is arranged between the first moving piece 322 and the first support 31, and the first elastic piece 3233 is in a compressed state when the cutting mechanism 325 intrudes into the transmission channel 11. When the external force applied by the driving piece 321 to the first moving piece 322 is removed or reduced, the first moving piece 322 moves away from the side where the transmission channel 11 is located under the action of the elastic force generated by the first elastic piece 3233, so that the cutting mechanism 325 exits the transmission channel 11.

[0252] In an embodiment, the first support 31 further comprises a guide portion 3121 protruding from the bottom end 312, and the transmission channel 11 is arranged through the guide portion 3121 along the feeding direction H. The first moving piece 322 is provided with a guide groove 3228 located between the cutting mechanism 325 and the bottom end 312, one end of the first elastic piece 3233 is accommodated in the guide groove 3228, and the other end of the first elastic piece 3233 extends out of the guide groove 3228 and abuts against the guide portion 3121.

[0253] In the embodiment, the guide groove 3228 can be recessed from the bottom surface 3224 to the top surface 3223 of the first moving piece 322, and the guide groove 3228 has a window 32281 on the side corresponding to the connecting end 3222 to expose the inside of the guide groove 3228. The first elastic piece 3233 is arranged in the guide groove 3228 and can extend out of the guide groove 3228 from the window 32281. The guide portion 3121 protrudes from the bottom end 312, and cooperates with the bottom end 312 and the inner side end 311 to accommodate and guide the first moving piece 322. The end of the first elastic piece 3233 extending out of the guide groove 3228 abuts against the side wall of the guide portion 3121, and the guide groove 3228 cooperates with the guide portion 3121 to guide the first elastic piece 3233, so that the first elastic piece 3233 can be stretched or compressed along the feeding direction T, and the reset accuracy of the first moving piece 322 is improved.

[0254] In an embodiment, the guide portion 3121 is provided with a feed slot 31210 in the feed direction T, the feed slot 31210 is communicated with the transmission channel 11, and the end of the cutting mechanism 325 away from the first moving member 322 is configured to intrude into the transmission channel 11 through the feed slot 31210.

[0255] In the embodiment, the shape of the feed slot 31210 matches the shape of the cutter head 3251 of the cutting mechanism 325, and the cutter head 3251 can extend into the transmission channel 11 through the feed slot 31210, further improving the feed accuracy.

[0256] Further in combination with FIG. 38, the first reset mechanism 323 can simultaneously include a first magnetic mechanism 3231, a second magnetic mechanism 3232, and a first elastic member 3233; the side surface 3225 of the first moving member 322 is provided with a first accommodating hole 3220, and the bottom surface 3224 of the first moving member 322 is provided with a guide slot 3228. The first reset mechanism 323 simultaneously drives the first moving member 322 to drive the cutting mechanism 325 to exit the transmission channel 11 through magnetic force and elastic force.

[0257] In the above, the specific embodiments of the present application are described with reference to the drawings. However, those skilled in the art can understand that various changes and replacements can be made to the specific embodiments of the present application without departing from the spirit and scope of the present application. These changes and replacements are within the scope defined by the present application.

Claims

1. A showerhead module, comprising: A nozzle assembly and a cutting assembly are provided, the cutting assembly is used in cooperation with a transmission channel for transmitting a consumable, the transmission channel is in communication with a feeding end of the nozzle assembly, the cutting assembly comprises: a driving member; a cutting member which is in driving cooperation with the driving member, the cutting member is configured to selectively enter the transmission channel to shear the consumable in the transmission channel.

2. The showerhead module of claim 1, wherein The driving member is fixedly connected or hinged with the cutting member; or the driving member and / or the cutting member is configured to be arranged on a bracket, and the driving member and / or the cutting member is fixedly connected or hinged with the bracket.

3. The showerhead module of claim 1, wherein A sensor member is further provided for sensing the motion state and / or position of the driving member and / or the cutting member.

4. The showerhead module of claim 3, wherein The sensor member comprises a first angle sensor which is configured to follow the motion of the driving member; or the sensor member comprises a first infrared sensor which is arranged on the motion path of the driving member, the first infrared sensor is configured to be blocked by the driving member and generate a corresponding first infrared blocking signal to detect the position of the driving member; or the sensor member comprises a first Hall sensor, the driving member is arranged movably relative to the first Hall sensor, the first Hall sensor is configured to be blocked by the driving member and generate a corresponding first Hall blocking signal to detect the position of the driving member; or the sensor member comprises a first displacement sensor, the first displacement sensor is arranged on the driving member; or the first displacement sensor is arranged on the motion path of the driving member; or the sensor member comprises a first photoelectric sensor, the first photoelectric sensor is configured to be blocked by the driving member and generate a corresponding first photoelectric blocking signal to detect the position of the driving member; or the sensor member comprises a first electromagnetic sensor, the first electromagnetic sensor is arranged on the motion path of the driving member, and the driving member is configured to cause changes in the magnetic field and / or induced current of the first electromagnetic sensor.

5. The showerhead module of claim 1, wherein A first reset member is further provided for driving the driving member to reset so that the cutting member exits the transmission channel.

6. The showerhead module of claim 5, wherein The first reset member comprises a first spring reset structure which is connected and / or abuts with the driving member; or the first reset member comprises a first magnetic reset structure, the first magnetic reset structure comprises a first magnetic member and a second magnetic member, the first magnetic member is connected with the driving member, and the second magnetic member is arranged spaced apart from the first magnetic member.

7. The showerhead module of claim 3, wherein The transmission device includes a second angle sensor arranged on the cutting device to detect the rotation angle of the cutting device; or, the transmission device includes a second displacement sensor arranged on the cutting device; or, the transmission device includes a second displacement sensor arranged on the movement path of the cutting device; or, the transmission device includes a second photoelectric sensor configured to be blocked by the cutting device and generate a corresponding second photoelectric blocking signal to detect the position of the cutting device; or, the transmission device includes a second electromagnetic sensor arranged on the movement path of the cutting device, and the cutting device is configured to cause the magnetic field or induced current of the second electromagnetic sensor to change.

8. The showerhead module of claim 1, wherein Further comprising a second reset device configured to drive the cutting device to reset so that the cutting device exits the transmission channel.

9. The showerhead module of claim 8, wherein The second reset device includes at least one of a second spring reset structure, a second torsion spring reset structure, and a second magnetic reset structure, and the second reset device is connected to and / or abuts against the cutting device.

10. A showerhead module, comprising: The nozzle module has a transmission channel for transmitting consumables, and further includes: A first support through which the transmission channel passes; A cutting assembly including a cutting device, the cutting device including a first moving device, a first reset mechanism, and a cutting mechanism, the first moving device being respectively connected to the first support and the cutting mechanism, the first reset mechanism being connected to the first moving device and the first support, and the first reset mechanism being configured to drive the first moving device to reset the cutting mechanism by magnetic force.

11. The showerhead module of claim 10, wherein The transmission channel passes through the first support along a feeding direction, and the cutting assembly further includes: A driving device rotatably connected to the first support, the cutting device being drivingly connected to the driving device, and the cutting device being configured to selectively enter the transmission channel to shear the consumables located in the transmission channel; The driving device is configured to move the first moving device between a first position and a second position, and when moving from the first position to the second position, the first moving device drives the cutting mechanism to enter the transmission channel from an infeed direction, the feeding direction intersecting the infeed direction, and the first reset mechanism providing a reset force by magnetic force to return the driving device to the first position.

12. The showerhead module of claim 11, wherein The first reset mechanism includes: A first magnetic mechanism connected to the first moving device; A second magnetic mechanism connected to the first support; The first magnetic mechanism and the second magnetic mechanism are movably arranged relative to each other, and the first magnetic mechanism and the second magnetic mechanism are configured such that when the cutting mechanism intrudes into the transmission channel, the repulsive force between the first magnetic mechanism and the second magnetic mechanism is greater than the attractive force between the first magnetic mechanism and the second magnetic mechanism.

13. The showerhead module of claim 12, wherein The first moving device is configured to move along the infeed direction to drive the cutting mechanism to intrude into or exit the transmission channel; The first magnetic mechanism and the second magnetic mechanism are arranged side by side along the feed direction; The first magnetic mechanism comprises a first magnetic pole and a second magnetic pole, the first magnetic pole is arranged closer to the transmission channel along the feed direction than the second magnetic pole; The second magnetic mechanism comprises a third magnetic pole and a fourth magnetic pole, the third magnetic pole is arranged closer to the transmission channel along the feed direction than the fourth magnetic pole; The first magnetic pole and the third magnetic pole are same poles, and the second magnetic pole and the fourth magnetic pole are same poles.

14. The showerhead module of claim 13, wherein The first reset mechanism is arranged between the driving member and the material breaking mechanism; The first magnetic pole and the second magnetic pole are opposite poles, and the third magnetic pole and the fourth magnetic pole are opposite poles; The first magnetic mechanism and the second magnetic mechanism are configured to be arranged side by side along the feed direction when the material breaking mechanism intrudes into the transmission channel.

15. The showerhead module of claim 12, wherein The first support has an inner side end, which is arranged apart from the transmission channel; The first moving member comprises a first accommodating hole, which is arranged on the side of the first moving member facing the inner side end, and the first magnetic mechanism is accommodated in the first accommodating hole; The inner side end is provided with a second accommodating hole on the side facing the first moving member, and the second magnetic mechanism is accommodated in the second accommodating hole.

16. The showerhead module of claim 11, wherein The first moving member is configured to move along the feed direction, and the first reset mechanism further comprises: A first elastic member is clamped between the first moving member and the first support along the feed direction, and the first elastic member is configured to be in a compressed state when the material breaking mechanism intrudes into the transmission channel.

17. The showerhead module of claim 16, wherein The first support has a bottom end, and the first support further comprises a guide portion protruding from the bottom end, the transmission channel is arranged through the guide portion along the feed direction, and the first moving member is provided with a guide groove between the material breaking mechanism and the bottom end; One end of the first elastic member is accommodated in the guide groove, and the other end of the first elastic member protrudes out of the guide groove and abuts against the guide portion.

18. The showerhead module of claim 17, wherein The guide portion is provided with a feed slot along the feed direction, the feed slot communicates with the transmission channel, and the end of the material breaking mechanism away from the first moving member is configured to intrude into the transmission channel through the feed slot.

19. The showerhead module of claim 11, wherein The first moving member is configured to move along the feed direction; The first support has a bottom end, and the first moving member is arranged at the bottom end; The first moving member is arranged through a guide hole along the feed direction, a guide column is arranged through the guide hole and fixedly connected with the first support through the bottom end, and the guide column is configured to be accommodated in the guide hole when the first moving member moves along the feed direction.

20. The showerhead module of claim 19, wherein The first moving part comprises a force receiving end and a connecting end which are arranged at intervals along the feed direction, the force receiving end is configured to contact the driving part, and the connecting end is configured to connect the material breaking mechanism, and the guide hole is located between the force receiving end and the connecting end.

21. The showerhead module of claim 11, wherein The driving part comprises: a first end portion which is rotationally connected to the first support through a rotating shaft; a second end portion which is configured to be driven to rotate the driving part along the rotating shaft; a force applying end portion which is located between the first end portion and the second end portion, and is located on a side of the driving part facing the first moving part and the transmission channel, the force applying end portion is in contact with the first moving part for pushing the first moving part.

22. The showerhead module of claim 21, wherein The nozzle module further comprises a second reset mechanism, the second reset mechanism is a torsion spring, the second reset mechanism is sleeved on the rotating shaft and is located between the rotating shaft and the first end portion, and the second reset mechanism is configured to be in a compressed state when the material breaking mechanism intrudes into the transmission channel.

23. A 3D printing device, characterized by The nozzle module comprises a forming platform, a driving assembly and a nozzle module as claimed in any one of claims 1 to 9 or as claimed in any one of claims 10 to 22, the driving assembly drives the nozzle module to move relative to the forming platform.

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