Cutter device, thread material placing assembly and 3D printer

Abstract

The utility model discloses a kind of cutter device, line material placing assembly and 3D printer, it is related to 3D printing technical field, the 3D printer includes printing head, the printing head is used to connect line material, the cutter device includes: fixed frame, the fixed frame is equipped with pass material space, the pass material space is used to at least in first direction at least part of path of the line material connection to the printing head is provided;Cutter module, the cutter module is equipped in the fixed frame, the cutter module includes cutter, and the cutter is used to realize the break of the line material;Wherein, the moving direction of the cutter is obliquely arranged with the first direction;And / or, the cutting edge of the cutter is arranged with the first direction at angle. The technical scheme provided by the utility model aims to improve the feeding convenience of line material after cutting.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a cutting device, a filament placement assembly, and a 3D printer. Background Technology

[0002] 3D printing technology has developed rapidly in recent years and has been widely used in industrial manufacturing, medical, aerospace and other fields. The demand for consumer-grade FDM (Fused Deposition Modeling) 3D printers is also increasing. These printers achieve printing by molten solid filament. In the process of developing this application, the inventors discovered that the related technology has at least the following problem: the filament after cutting is not easy to feed in FDM 3D printers. Utility Model Content

[0003] The main purpose of this invention is to provide a cutting device, a wire placement assembly, and a 3D printer, which aims to improve the feeding convenience of the cut wire.

[0004] To achieve the above objectives, on the one hand, this utility model proposes a cutting device applied to a 3D printer, the 3D printer including a print head for connecting filament, and the cutting device including:

[0005] A mounting bracket is provided with a material feeding space, the material feeding space being used to provide at least a partial path for the wire to connect to the print head in at least a first direction;

[0006] A cutting module is mounted on the fixed frame and includes a cutting blade used to cut the wire.

[0007] Wherein, the moving direction of the cutter is inclined to the first direction; and / or, the blade of the cutter is at an angle to the first direction.

[0008] In one embodiment, the cutter module further includes a drive member connected to the fixing frame. The drive member is used to position the cutter in a first position or a second position. When the cutter is in the first position, the path is released. When the cutter is in the second position, the wire is disconnected.

[0009] In one embodiment, the cutter module further includes a transmission component, which includes a gear and a rack. The gear is located at the output end of the drive component, and the rack is movably mounted on the fixed frame and meshes with the gear. The cutter is connected to the rack.

[0010] In one embodiment, one of the fixing frame and the rack is provided with a slide rail, and the other is at least partially slidably disposed on the slide rail;

[0011] And / or, the mounting bracket is further provided with a sliding groove, and the cutter is at least partially disposed in the sliding groove.

[0012] In one embodiment, the mounting frame includes a frame body and a mounting plate, the mounting plate being detachably connected to the frame body and mounting the cutter module on the mounting plate.

[0013] In one embodiment, the mounting bracket includes a frame and a mounting plate, the mounting plate mounting the cutter module, and the mounting plate having through holes that provide at least a portion of the path.

[0014] In one embodiment, the cutting device further includes a material breakage detection module, which is disposed on the fixed frame and is used to detect the breakage of the wire.

[0015] In one embodiment, the material breakage detection module and the cutting module are arranged along the first direction.

[0016] In one embodiment, the cutting module is closer to the first end of the material feeding space in the first direction than the material breakage detection module, and the first end is used to connect the wire to the print head.

[0017] In one embodiment, the material breakage detection module includes a contact element and a position detection component. The contact element is movably disposed on the fixing frame. The contact element has a third position for contacting the wire and a fourth position for disengaging from the wire. The position detection component is used to detect the position of the contact element.

[0018] In one embodiment, the fixing frame is provided with a material passage that provides a portion of the material passage space; in the third position, the contact member is disengaged from the material passage; and in the fourth position, the contact member is located in the material passage.

[0019] In one embodiment, the material breakage detection module includes an elastic element, one end of which is connected to the fixing frame, and the other end of which is connected to the contact element.

[0020] In one embodiment, the position detection component includes a support frame and a positioning sensor. The support frame is connected to the fixed frame and has an opening. The contact element is movably disposed in the opening. The positioning sensor is disposed on the side of the support frame away from the material passage space. The positioning sensor is used to detect the position of the contact element.

[0021] On the other hand, this utility model also proposes a filament placement assembly for use in a 3D printer, the 3D printer including a print head for connecting filament, and the filament placement assembly including:

[0022] A wire placement device, the wire placement device being used to place the wire;

[0023] As described above, the cutting device provides at least a portion of the path through which the filament is connected from the filament placement device to the printhead.

[0024] Furthermore, this utility model also proposes a 3D printer, which includes:

[0025] Organism;

[0026] A print head, which is disposed on the machine body, is used to connect wire materials;

[0027] As described above, the cutting device provides at least a partial path for the filament to connect to the printhead.

[0028] In one implementation,

[0029] The cutting device is detachably mounted on the machine body.

[0030] In one implementation,

[0031] The 3D printer also includes a filament placement device for placing the filament, and the cutting device provides at least a partial path for the filament to be connected from the filament placement device to the print head.

[0032] This utility model also proposes a 3D printer, the 3D printer comprising:

[0033] Organism;

[0034] A printhead, wherein the printhead is disposed on the machine body;

[0035] As described above, the cutting device is detachably mounted on the machine body and located in the feed path of the print head.

[0036] One of the above technical solutions has the following advantages or beneficial effects: the moving direction of the cutter is inclined to the first direction, or the blade of the cutter is set at an angle to the first direction, so that the cut part of the cut wire is pointed, which is conducive to the next feeding of the wire and thus improves the feeding convenience of the cut wire. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 A schematic diagram of the cutting device in one embodiment of this utility model;

[0039] Figure 2 An exploded view of the cutting device in one embodiment of this utility model;

[0040] Figure 3 A cross-sectional view of the cutting device in one embodiment of this utility model.

[0041] Explanation of icon numbers:

[0042] 100. Cutting device; 1. Fixing frame; 11. Material feeding space; 12. Frame body; 13. Mounting plate; 131. Slide rail; 132. Slide groove; 14. Material feeding channel; 2. Cutting module; 21. Drive component; 22. Transmission component; 221. Gear; 222. Rack; 23. Cutting blade; 3. Material breakage detection module; 31. Mounting base; 312. Contact component; 313. Position detection component; 3131. Support frame; 3131a. Opening; 3132. Position sensor; 314. Elastic component.

[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0045] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0046] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0047] like Figures 1 to 3 As shown, this utility model proposes a cutting device 100 for use in a 3D printer. The 3D printer includes a print head for connecting filament. The cutting device 100 includes a mounting frame 1 and a cutting module 2. The mounting frame 1 has a feed space 11 for providing at least a partial path for the filament to connect to the print head in at least a first direction. The cutting module 2 is mounted on the mounting frame 1 and includes a cutter 23 for disconnecting the filament. The cutting direction of the cutter 23 is inclined to the first direction, and / or the blade of the cutter 23 is angled to the first direction.

[0048] The cutting blade 23 is inclined to the first direction, or the cutting edge of the cutting blade 23 is set at an angle to the first direction, so that the cut part of the cut wire is pointed, which is conducive to the next feeding of the wire and thus improves the feeding convenience of the cut wire.

[0049] Understandably, during the printing process of a 3D printer, a filament tray wound with filament material is transported to the print head via a transfer tube. In monochrome 3D printers, the filament end is typically inserted into or removed from the print head manually during feeding and unloading. To automate the feeding and unloading process, users can install an additional transfer device near the filament tray, which can then be electrically driven to feed material into the print head or unload it onto the tray. For even better feeding and unloading performance, the existing monochrome 3D print head needs to be modified to include a cutting function. This allows the molten end of the filament to be cut off during unloading, preventing it from entering the transfer channel and causing blockages.

[0050] In this embodiment, the mounting frame 1 serves as the mounting structure for the cutter module 2. The cutter device 100 can be installed into the path for feeding the print head via the mounting frame 1, and the feed space 11 of the mounting frame 1 is connected to the print head. The feed space 11 raises at least part of the path connecting the filament to the print head in the first direction, thus eliminating the need to modify the print head and effectively reducing the difficulty of modifying the original monochrome 3D printer for the user. During the 3D printing process, the filament is fed into the print head through the feed space 11; during ejection, the filament is ejected from the print head back to the feed space 11. The cutter module 2 can cut the filament during ejection using the cutter 23 to prevent the molten end of the filament from retracting into the transmission channel, causing blockage and affecting feeding. The moving direction of the cutter 23 is inclined to the first direction, which allows for better cutting of the filament and prevents filament from being left uncut or remaining on the cutter 23, affecting feeding, ejection, and subsequent cutting. Optionally, the blade of the cutter 23 is set at an angle to the first direction. The included angle can be 30°, 45°, 60°, 75°, etc. The end face of the cut wire is set at an angle to ensure the cutting effect of the wire and facilitate the next feeding of the wire.

[0051] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cutter module 2 also includes a drive unit 21, which is connected to the fixed frame 1. The drive unit 21 is used to put the cutter 23 in a first position or a second position. When the cutter 23 is in the first position, the path is released. When the cutter 23 is in the second position, the wire is disconnected.

[0052] In this embodiment, the drive unit 21 drives the cutter 23 to move between a first position and a second position. During the material transfer process, the cutter 23 is in the first position, ensuring that the material transfer path is unobstructed and avoiding any impact on the material transfer. During material retraction, when the cutter module 2 needs to perform a cutting action, the drive unit 21 drives the cutter 23 to move to the second position and cut the material. Afterward, the drive unit 21 drives the cutter 23 to return to the first position, completing one cutting action.

[0053] In actual implementation, the drive component 21 can be an encoder actuator or an electric cylinder, etc. The drive component 21 can control the start and stop of the cutter 23 and the drive path. The drive component 21 can be detachably connected to the fixing frame 1 by means of screws or clips.

[0054] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cutter module 2 also includes a transmission component 22, which includes a gear 221 and a rack 222. The gear 221 is located at the output end of the drive component 21, and the rack 222 is movably located on the fixed frame 1 and meshes with the gear 221. The cutter 23 is connected to the rack 222.

[0055] In this embodiment, the transmission component 22 includes a gear 221 and a rack 222. The meshing of the gear 221 and the rack 222 converts the rotational output of the drive component 21 into the translational motion of the cutter 23, thereby driving the cutter 23 to cut the wire.

[0056] Optionally, a set of reduction gears 221 can also be provided between gear 221 and rack 222, without specific limitations.

[0057] In actual implementation, the rack 222 is provided with a mounting groove. The bottom of the mounting groove is inclined in the same direction as the preset inclination direction of the blade of the cutter 23. The cutter 23 is installed in the mounting groove and abuts against the bottom of the groove to keep the blade of the cutter 23 inclined to the direction of wire transmission, thereby improving the connection strength between the cutter 23 and the mounting plate 13 and ensuring the smoothness of the cutter 23 during movement. The driving component 21 is a motor.

[0058] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one of the fixing frame 1 and the rack 222 is provided with a slide rail 131, and the other is at least partially slidably disposed on the slide rail 131;

[0059] Specifically, the fixed frame 1 may be provided with a slide rail 131, and the rack 222 may be slidably disposed on the slide rail 131. Alternatively, the rack 222 may be provided with a slide rail 131, and some of the fixing components may be limited to the slide rail 131, so that the rack 222 can slide on the fixed frame 1.

[0060] In this embodiment, the rack 222 is slidably connected to the fixed frame 1 via the slide rail 131. The slide rail 131 guides the movement of the rack 222, causing the rack 222 to drive the cutter 23 to move in a preset direction, and also improves the stability of the rack 222 and the cutter 23 during movement. In actual implementation, the slide rail 131 can be a groove 132 recessed in the fixed frame 1, with at least a portion of the rack 222 sliding within the groove 132, or it can be a slider protruding from the fixed frame 1, with the rack 222 corresponding to the slider and the slider being limited within the groove 132, thus achieving a sliding engagement between the rack 222 and the fixed frame 1.

[0061] Optionally, the mounting bracket 1 is further provided with a slide groove 132, and the cutter 23 is at least partially disposed in the slide groove 132.

[0062] In this embodiment, the fixing frame 1 is also provided with a sliding groove 132, which is used to guide the cutter 23 to prevent the cutter 23 from tilting during movement, thus affecting the cutting effect on the wire. In actual implementation, the sliding groove 132 can be recessed into the fixing frame 1, or it can be formed by a limiting block that is relatively disposed on the fixing frame 1. Optionally, the sliding groove 132 can be connected to the through hole so that the cutter 23 can cut the wire within the sliding groove 132.

[0063] Understandably, the groove 132 used to guide the cutter 23 is tilted to correspond to the direction of the cutting edge of the cutter 23.

[0064] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the mounting frame 1 includes a frame body 12 and a mounting plate 13. The mounting plate 13 is detachably connected to the frame body 12 and the cutting module 2 is mounted on the mounting plate 13.

[0065] In this embodiment, the mounting plate 13 serves as the mounting structure for the cutter module 2. The cutter module 2 is mounted on the mounting plate 13. During the production of the cutter device 100, the mounting plate 13 and the cutter module 2 can be assembled, and then the mounting plate 13 can be mounted on the fixing frame 1. This facilitates the installation of the cutter module 2, improves the production efficiency of the cutter device 100, and also facilitates the disassembly, maintenance, or replacement of the cutter module 2. Optionally, the mounting plate 13 can be detachably connected to the fixing frame 1 by means of clips or screws.

[0066] Optionally, the mounting frame 1 includes a frame body 12 and a mounting plate 13. The mounting plate 13 mounts the cutter module 2 and has a through hole providing at least a partial path. The through hole communicates with the material feeding space 11 and is used to avoid obstructing the wire material, allowing it to be transported normally. Since the drive unit 21 is relatively large, it is mounted on one side of the mounting plate 13, while the transmission component 22 and the cutter 23 are mounted on the other side. The output end of the drive unit 21 passes through the mounting plate 13 to connect with the transmission component 22, thus fully utilizing the mounting space of the mounting frame 1 and making the cutter device 100 more compact. In a first position, the cutter 23 is in the position where the through hole is open, allowing the wire material to pass through; in a second position, the cutter 23 is in the position where it extends beyond the through hole to cut the wire material. Optionally, the frame body 12 and the mounting plate 13 are connected at an angle. The mounting plate 1324 can be detachably connected to the mounting frame 11 by means of clips or screws.

[0067] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cutting device 100 also includes a material breakage detection module 3, which is mounted on the fixed frame 1 and is used to detect the breakage of the wire.

[0068] In this embodiment, the material breakage detection module 3 can detect whether filament has passed through its detection position to determine whether the material feed / retraction was successful or whether the filament has broken. If feed / retraction fails, an alarm can be issued to the user in a timely manner so that the user can troubleshoot the problem promptly and avoid losses. At the same time, the material breakage detection module 3 can determine the position of the filament end during retraction, and then control the distance between the cutting position of the cutting module 2 and the filament end, so that the cutting point of the filament is as close to the end as possible, thereby reducing filament waste. The cutting device 100 in this application can enable the 3D printer to add a cutting function and can detect whether the material feed / retraction is successful, further improving the reliability of material feed / retraction and material changing during multi-color printing.

[0069] In an embodiment of this utility model, the material breakage detection module 3 and the cutting module 2 are arranged along the first direction, such that both the material breakage detection module 3 and the cutting module 2 are on the material transmission path.

[0070] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cutter module 2 is closer to the first end of the material feeding space 11 in the first direction than the material breakage detection module 3. The first end is used to connect the wire material to the print head.

[0071] In this embodiment, the cutter module 2 is positioned between the material breakage detection module 3 and the print head. During material ejection, when the material breakage detection module 3 detects no material, a certain length of material can be fed into the print head so that the molten end of the material is located between the cutter module 2 and the print head. The cutter module 2 then cuts the material, removing the molten end. The feeding length during this process can be set according to the distance between the detection position of the material breakage detection module 3 and the cutting position of the cutter module 2, ensuring that the cut point is as close as possible to the molten end to reduce material waste. During feeding, the end of the material can repeatedly pass through the material breakage detection module 3, allowing the module to detect the material's path multiple times to ensure successful feeding.

[0072] Optionally, the material breakage detection module 3 is positioned between the print head and the cutter module 2. During material ejection, when the material breakage detection module 3 detects a lack of material, the molten end of the material passes the detection position of the material breakage detection module 3. The cutter module 2 can then cut the material to remove the molten end, preventing it from being carried further into the transmission channel. The distance between the detection position of the material breakage detection module 3 and the cutting position of the cutter module 2 can be preset to be relatively small. This also ensures that the cut point of the material is as close as possible to the molten end, preventing the material from being cut too long and thus reducing material waste.

[0073] Optionally, the material breakage detection module 3 and the cutting module 2 are respectively located at both ends of the fixed frame 1. This ensures sufficient installation space for the material breakage detection module 3 and the cutting module 2 during the production of the cutting device 100, reducing installation difficulty and improving production efficiency.

[0074] In embodiments of this utility model, such as Figures 1 to 3 As shown, the material breakage detection module 3 includes a contact element 312 and a position detection component 313. The contact element 312 is movably mounted on the fixed frame 1. The contact element 312 has a third position for contacting the wire and a fourth position for disengaging from the wire. The position detection component 313 is used to detect the position of the contact element 312.

[0075] In this embodiment, the contact 312 is movably mounted on the fixed frame 1 and can abut against the wire material being transported in the path. It is understood that when the contact 312 abuts against the wire material in the path, the contact 312 is in the third position and continuously triggers the position detection component 313, and the material breakage detection module 3 determines that wire material has passed through the path; when the contact 312 is not abutting against the wire material, the contact 312 is in the fourth position and no longer triggers the position detection component 313, and the material breakage detection module 3 determines that there is no wire material in the path. During material retraction, the change of the contact 312 between the third and fourth positions indicates whether the end of the wire material has reached the detection position of the material breakage detection module 3, and the distance between the end of the wire material and the cutter 23 is determined, so that the cutter module 2 can cut the material.

[0076] During material unloading, the position detection component 313 determines successful unloading by judging whether the position of the contact member 312 has shifted from the third position to the fourth position. During material feeding, the position detection component 313 determines successful unloading by judging whether the position of the contact member 312 has shifted from the fourth position to the third position. During inline material transfer, the position detection component 313 can also determine whether a material breakage has occurred by judging whether the position of the contact member 312 has shifted from the third position to the fourth position.

[0077] The position detection component 313 can be a non-contact position sensor such as a photoelectric sensor or an electromagnetic sensor, or a contact position sensor triggered by a micro switch or mechanical trigger; no specific limitation is made here.

[0078] In embodiments of the utility model, such as Figures 1 to 3 As shown, the fixing frame 1 is provided with a material passage 14 that provides a portion of the material passage space 11. In the third position, the contact member 312 is disengaged from the material passage 14, and in the fourth position, the contact member 312 is located in the material passage 14.

[0079] In this embodiment, the wire is transmitted through the feeding channel 14. The contact member 312 contacts the wire in the feeding channel 14. The contact member 312 disengages from the feeding channel 14 and is located in the third position. When there is no wire being transmitted in the feeding channel 14, the contact member 312 extends into the feeding channel 14 and is located in the fourth position.

[0080] In an embodiment of the utility model, the material breakage detection module 3 includes an elastic element 314, one end of which is connected to the fixing frame 1, and the other end of which is connected to the contact element 312.

[0081] In this embodiment, the contact 312 is elastically connected to the fixing frame 1 via the elastic member 314. When the wire is being transported in the path and comes into contact with the contact 312, the contact 312 is displaced. When it moves from the fourth position to the third position, the elastic member 314 deforms and triggers the position detection component 313. When the wire is not being transported in the path, the elastic member 314 rebounds and drives the contact 312 to reset, moving from the third position to the fourth position, and the position detection component 313 is no longer triggered.

[0082] Optionally, when the contact 312 is in the fourth position, the elastic element 314 can also be in a deformed state, so that the contact 312 can closely abut against the wire and change position in a timely manner as the end of the wire enters or leaves the material passage 14, thereby improving the timeliness and accuracy of the material breakage detection module 3 in detecting material breakage.

[0083] Optionally, the cross-section of the end of the contact member 312 that contacts the wire can be arrow-shaped, that is, both sides can be beveled, so that when the wire is transported along the path, the beveled surfaces can drive the contact member 312 to move. Optionally, the elastic member 314 is a spring, which is sleeved on the contact member 312.

[0084] In embodiments of the utility model, such as Figures 1 to 3 As shown, the position detection component 313 includes a support frame 3131 and a position sensor 3132. The support frame 3131 is connected to the fixed frame 1 and has an opening 3131a. The contact member 312 is movably disposed in the opening 3131a. The position sensor 3132 is disposed on the side of the support frame 3131 away from the material passage space 11. The position sensor 3132 is used to detect the position of the contact member 312.

[0085] In this embodiment, the support frame 3131 is connected to the fixed frame 1 and is used to install the positioning sensor 3132. The positioning sensor 3132 is located on the side of the support frame 3131 away from the material passage space 11, which facilitates the installation and removal of the positioning sensor 3132 and is beneficial for the maintenance and replacement of the positioning sensor 3132. The support frame 3131 is also provided with an opening 3131a for avoiding the contact member 312. When the contact member 312 moves between the third position and the fourth position, the contact member 312 moves along the opening 3131a.

[0086] In actual implementation, the position sensor 3132 is mounted on a circuit board, which is mounted on a support frame 3131. The circuit board has a through hole communicating with the opening 3131a to avoid obstructing the contact member 312. Optionally, the position sensor 3132 is a through-beam photoelectric switch. When the contact member 312 moves to the third position, it is located between the output and receiving ends of the through-beam photoelectric switch, thus triggering the switch. When the contact member 312 moves to the fourth position, it moves away from the area between the output and receiving ends of the through-beam photoelectric switch, and the switch is no longer triggered.

[0087] An embodiment of this utility model also provides a filament placement assembly for use in a 3D printer. The 3D printer includes a print head for connecting filament. The filament placement assembly includes a filament placement device and a cutting device 100. The filament placement device is used to place the filament; the cutting device 100 provides at least a partial path for the filament to connect from the filament placement device to the print head. The specific structure of the cutting device 100 and its beneficial effects can be found in the above embodiments, and will not be repeated here.

[0088] This utility model also proposes a 3D printer, such as... Figure 1 As shown, the 3D printer includes a body, a print head, and a cutting device 100. The specific structure of the cutting device 100 is as described in the above embodiments. Since this 3D printer adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The print head is located on the body and is used to connect filament; the cutting device 100 provides at least a partial path for the filament to connect to the print head.

[0089] Optionally, the cutter device 100 is detachably mounted on the machine body. The cutter device 100 is detachably connected to the machine body by means of clips or screws, so that the user can install the cutter device 100 independently. In actual implementation, the print head is mounted on the drive unit of the machine body. Optionally, the cutter device 100 is also mounted on the drive unit of the machine body, close to the print head.

[0090] Optionally, the 3D printer also includes a filament placement device for placing filament, and the cutter device 100 provides at least a portion of the path through which the filament is connected to the print head from the filament placement device.

[0091] An embodiment of this utility model also provides another 3D printer, which includes the above-described filament placement device. The structure of this filament placement device and its beneficial effects can be found in the above embodiments, and will not be repeated here.

[0092] This utility model also provides another cutting device 100 for use in a 3D printer. The 3D printer includes a print head for connecting filament. The cutting device 100 includes a mounting frame 1, a cutting module 2, and a transmission component 22. The mounting frame 1 has a feed space 11, which provides at least a partial path for the filament to connect to the print head in at least a first direction. The cutting module 2 is mounted on the mounting frame 1 and includes a cutting blade 23 for disconnecting the filament. The transmission component 22 includes a gear 221 and a rack 222. The gear 221 is located at the output end of the drive component 21, and the rack 222 is movably mounted on the mounting frame 1 and meshes with the gear 221. The cutting blade 23 is connected to the rack 222. The specific structure and beneficial effects of the mounting frame 1, the cutting module 2, and the transmission component 22 can be found in the above embodiments and will not be repeated here.

[0093] This utility model also provides another filament placement assembly applied to a 3D printer. The 3D printer includes a print head for connecting filament. The filament placement assembly includes a filament placement device and the aforementioned alternative cutting device 100. The filament placement device is used to place the filament. The specific structure and beneficial effects of the filament placement device and the aforementioned alternative cutting device 100 can be found in the above embodiments and will not be repeated here.

[0094] This invention also provides another 3D printer, which includes a body, a print head, and the aforementioned alternative cutting device 100. The print head is disposed in the body and is used to connect filament. The cutting device 100 provides at least a partial path for the filament to connect to the print head. The specific structure and beneficial effects of the body, print head, and the aforementioned alternative cutting device 100 can be found in the above embodiments and will not be repeated here.

[0095] This utility model also provides another cutting device 100 for use in a 3D printer. The 3D printer includes a print head for connecting filament. The cutting device 100 includes a mounting frame 1, a cutting module 2, and a filament breakage detection module 3. The mounting frame 1 has a feed space 11, which provides at least a partial path for the filament to connect to the print head in at least a first direction. The cutting module 2 is mounted on the mounting frame 1 and includes a cutter 23 for breaking the filament. The filament breakage detection module 3 is mounted on the mounting frame 1 and is used to detect the breakage of the filament. The specific structure and beneficial effects of the mounting frame 1, the cutting module 2, and the filament breakage detection module 3 can be found in the above embodiments and will not be repeated here.

[0096] This utility model also provides another filament placement assembly applied to a 3D printer. The 3D printer includes a print head for connecting filament. The filament placement assembly includes a filament placement device and the aforementioned cutter device 100, the filament placement device being used to place the filament. The specific structure and beneficial effects of the filament placement device and the aforementioned cutter device 100 can be found in the above embodiments and will not be repeated here.

[0097] This utility model also provides another type of 3D printer, which includes a body, a print head, and the aforementioned cutter device 100. The print head is disposed in the body and is used to connect filament. The cutter device 100 provides at least a partial path for the filament to connect to the print head. The specific structure and beneficial effects of the body, print head, and the aforementioned cutter device 100 can be found in the above embodiments and will not be repeated here.

[0098] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cutting device for use in a 3D printer, the 3D printer including a print head for connecting filament, characterized in that, The cutting device includes: A mounting bracket is provided with a material feeding space, the material feeding space being used to provide at least a partial path for the wire to connect to the print head in at least a first direction; A cutting module is mounted on the fixed frame and includes a cutting blade used to cut the wire. Wherein, the moving direction of the cutter is inclined to the first direction; and / or, the blade of the cutter is at an angle to the first direction.

2. The cutting device as described in claim 1, characterized in that, The cutting module also includes a driving component connected to the fixed frame. The driving component is used to position the cutting blade in a first position or a second position. When the cutting blade is in the first position, the path is released. When the cutting blade is in the second position, the wire is disconnected.

3. The cutting device as described in claim 2, characterized in that, The cutter module also includes a transmission component, which includes a gear and a rack. The gear is located at the output end of the drive component, and the rack is movably mounted on the fixed frame and meshes with the gear. The cutter is connected to the rack.

4. The cutting device as described in claim 3, characterized in that, One of the fixing frame and the rack is provided with a slide rail, and the other is at least partially slidably disposed on the slide rail; And / or, the mounting bracket is further provided with a sliding groove, and the cutter is at least partially disposed in the sliding groove.

5. The cutting device as described in claim 1, characterized in that, The mounting frame includes a frame body and a mounting plate, the mounting plate being detachably connected to the frame body, and the mounting plate mounting the cutter module; or The mounting bracket includes a frame and a mounting plate, the mounting plate is used to mount the cutting module, and the mounting plate has through holes that provide at least part of the path.

6. The cutting device as described in any one of claims 1 to 5, characterized in that, It also includes a material breakage detection module, which is located on the fixed frame and is used to detect the breakage of the wire.

7. The cutting device as described in claim 6, characterized in that, The material breakage detection module and the cutting module are arranged along the first direction; or The cutting module is closer to the first end of the material feeding space in the first direction than the material breakage detection module. The first end is used to connect the wire material to the print head.

8. The cutting device as described in claim 6, characterized in that, The material breakage detection module includes a contact element and a position detection component. The contact element is movably mounted on the fixed frame. The contact element has a third position for contacting the wire and a fourth position for disengaging from the wire. The position detection component is used to detect the position of the contact element.

9. The cutting device as described in claim 8, characterized in that, The fixing frame is provided with a material passage channel that provides part of the material passage space. In the third position, the contact member is disengaged from the material passage channel, and in the fourth position, the contact member is located in the material passage channel. or The material breakage detection module includes an elastic element, one end of which is connected to the fixing frame, and the other end of which is connected to the contact element; or The position detection component includes a support frame and a position sensor. The support frame is connected to the fixed frame and has an opening. The contact element is movably disposed in the opening. The position sensor is disposed on the side of the support frame away from the material passage space. The position sensor is used to detect the position of the contact element.

10. A filament placement assembly for use in a 3D printer, the 3D printer including a print head for connecting filament, characterized in that, The wire placement assembly includes: A wire placement device, the wire placement device being used to place the wire; The cutting device according to any one of claims 1 to 9, wherein the cutting device provides at least a portion of the path by which the filament is connected from the filament placement device to the printhead.

11. A 3D printer, characterized in that, The 3D printer includes: Organism; A print head, which is disposed on the machine body, is used to connect wire materials; The cutting device as claimed in any one of claims 1 to 9, wherein the cutting device provides at least a partial path for the filament to connect to the printhead.

12. The 3D printer as claimed in claim 11, characterized in that, The cutting device is detachably mounted on the machine body; or The 3D printer also includes a filament placement device for placing the filament, and the cutting device provides at least a partial path for the filament to be connected from the filament placement device to the print head.

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