CN218489118U - FDM3D beats printer head and 3D printer - Google Patents
FDM3D beats printer head and 3D printer Download PDFInfo
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- CN218489118U CN218489118U CN202222850799.6U CN202222850799U CN218489118U CN 218489118 U CN218489118 U CN 218489118U CN 202222850799 U CN202222850799 U CN 202222850799U CN 218489118 U CN218489118 U CN 218489118U
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Abstract
The application provides an FDM3D printing head which comprises an extrusion mechanism, a coating mechanism and a blockage alarm mechanism; the extrusion mechanism comprises a throat pipe and an extrusion assembly; the throat pipe is provided with a feed end and a discharge end, and an exposed groove hole is formed in the throat pipe and positioned between the feed end and the discharge end; the extrusion assembly is arranged at the feed end of the throat and used for conveying consumables into the throat; the blocking alarm mechanism comprises a butting wheel and a detection part, the butting wheel is rotatably arranged on one side of the throat pipe, and the part of the butting wheel extends into the exposed slot hole and is butted with the consumables; the detection piece is electrically connected with the extrusion assembly, is configured to detect whether the butting wheel rotates or not and generates a detection result to the extrusion assembly; the coating mechanism comprises a nozzle which is communicated with the discharge end of the throat pipe; the FDM3D printing head can realize nozzle blockage alarm so as to dredge the nozzle in time and ensure that the model printing work can be carried out smoothly; the application also provides a 3D printer that has used foretell FDM3D to beat printer head.
Description
Technical Field
The application relates to the technical field of 3D printing, especially, relate to a FDM3D beats printer head and a 3D printer.
Background
FDM (abbreviation of Fused Deposition Modeling), a method of heating and melting various kinds of filament materials (e.g., engineering plastics ABS, polycarbonate PC, etc.) and then performing Deposition molding; the operating principle of the FDM3D printer is as follows: the nozzle device moves in a plane under the control of a computer according to the section profile information of a product part, the thermoplastic filamentous material is sent to the nozzle device by an extrusion device, heated and melted into a semi-liquid state in the nozzle device, then extruded out and coated on a workbench, after the section of one layer is formed, the workbench descends to a certain height, then the section of the next layer is coated, and the steps are repeated so as to finally form a three-dimensional product.
Among 3D printers, the 3D print head is the most dominant component; a traditional near-end extrusion type FDM3D printing head generally comprises a nozzle device, a heating device, a throat device, a heat dissipation device, a printing head fixing device, an extrusion device, a material guiding device and the like, so as to heat and extrude 3D printing consumables; however, in practical application, due to various reasons, the nozzle device of the FDM3D printing head is easily blocked and cannot extrude consumables, and finally a printing model fails, but the conventional FDM3D printing head mostly has no function of nozzle device blockage alarm and cannot timely respond to the nozzle device blockage, so that the progress of 3D printing work is affected and labor loss is caused.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a FDM3D beats printer head and 3D printer, and this FDM3D beats printer head and can realize that the nozzle blocks up the warning to can in time dredge the nozzle, ensure that the model printing work can go on smoothly.
To this end, in a first aspect, an embodiment of the present application provides an FDM3D print head, which includes an extrusion mechanism, a coating mechanism, and a jam warning mechanism; the extrusion mechanism comprises a throat pipe and an extrusion assembly; the throat pipe is provided with a feeding end and a discharging end, and an exposed groove hole is formed in the throat pipe and positioned between the feeding end and the discharging end; the extrusion assembly is arranged at the feeding end of the throat pipe and used for conveying consumables into the throat pipe; the blocking alarm mechanism comprises a butting wheel and a detection piece, the butting wheel is rotatably arranged on one side of the throat pipe, and the part of the butting wheel extends into the exposed slot hole and is butted with the consumable; the detection piece is electrically connected with the extrusion assembly, is configured to detect whether the butting wheel rotates or not and generates a detection result to the extrusion assembly; the coating mechanism comprises a nozzle which is communicated with the discharge end of the throat pipe.
In some possible implementations, the abutment wheel includes a grating wheel and the detection member includes a photoelectric switch.
In some possible implementations, the extrusion assembly includes a first extrusion gear and a second extrusion gear; the first end of the first extrusion gear is meshed with the first end of the second extrusion gear; the outer diameter of the first end of the first extrusion gear is larger than that of the second end of the first extrusion gear, and the outer diameter of the first end of the second extrusion gear is larger than that of the second end of the second extrusion gear; and the second end of the first extrusion gear is matched with the second end of the second extrusion gear to extrude the consumable.
In some possible implementation manners, a plurality of first extrusion grooves are formed in the second end of the first extrusion gear, and the plurality of first extrusion grooves are circumferentially distributed along the second end of the first extrusion gear; and the second end of the second extrusion gear is provided with a plurality of second extrusion grooves, and the second extrusion grooves are circumferentially distributed along the second end of the second extrusion gear.
In some possible implementations, the extrusion mechanism further includes a mount and a clutch assembly; the throat pipe is arranged in the mounting seat; the clutch assembly comprises a sliding seat, two sliding rods, a pressing piece and an elastic piece; the sliding seat is arranged in the mounting seat in a sliding manner; the two sliding rods are arranged side by side, one ends of the two sliding rods are connected to the pressing piece, and the other ends of the two sliding rods are connected to the sliding seat; the first extrusion gear and the second extrusion gear are both positioned between the two slide bars, and the second extrusion gear is rotatably arranged on the slide base; two ends of the elastic piece are respectively connected to the sliding seat and the mounting seat; the abutting wheel is arranged on the sliding seat.
In some possible implementations, the extrusion assembly further includes a drive gear, a driven gear; the driving gear and the driven gear are both rotatably arranged on the mounting seat; the driving gear is meshed with the driven gear, and the outer diameter of the driving gear is smaller than that of the driven gear; one side of the driven gear is connected with the second end of the first extrusion gear, and the driven gear and the first extrusion gear are coaxially arranged.
In some possible implementations, a plurality of screw holes are formed in the mounting seat and located on one side of the pressing piece.
In some possible implementation manners, a plurality of heat dissipation fins are arranged on the mounting seat; and one side of the mounting seat is provided with a fan.
In some possible implementations, the coating mechanism further includes a heat generating member disposed at the discharge end of the throat.
In a second aspect, the present application further provides a 3D printer, which includes the FDM3D printing head of the first aspect, where the FDM3D printing head is detachably mounted on the body.
The application provides a FDM3D beats printer head and 3D printer, compares with prior art, and its beneficial effect lies in:
the extrusion assembly can extrude the consumable so that the consumable can be conveyed into the throat pipe and extruded out of the nozzle through the throat pipe so as to perform 3D model printing; when the consumables are conveyed in the throat pipe, the consumables are abutted with the abutting wheel extending into the exposed slot of the throat pipe, the consumables move to drive the abutting wheel to rotate, if the nozzle is blocked and the consumables cannot be extruded, namely the consumables cannot move, the abutting wheel does not rotate, at the moment, the detection part detects that the abutting wheel does not rotate, the detection result is sent to the extrusion assembly, and the extrusion assembly stops conveying the consumables into the throat pipe; this beat printer head can realize that the nozzle blocks up the warning to can in time dredge the nozzle, ensure that model printing work can go on smoothly.
This application has still provided one kind and has used foretell FDM3D to beat 3D printer of printer head, and this printer can make things convenient for dismouting 3D to beat printer head's nozzle and dredge the processing.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. In addition, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.
Fig. 1 is a schematic structural diagram of an FDM3D print head according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another perspective view of the FDM3D printhead shown in FIG. 1;
FIG. 3 is a schematic diagram of the internal structure of the FDM3D print head shown in FIG. 2;
FIG. 4 is a schematic structural diagram of an extrusion assembly of the FDM3D printhead shown in FIG. 3;
FIG. 5 is a schematic diagram of the throat of the FDM3D printhead shown in FIG. 3;
description of reference numerals:
1. an extrusion mechanism; 11. a throat; 111. exposing the slot; 12. an extrusion assembly; 121. a first extrusion gear; 122. a second extrusion gear; 123. a first extrusion slot; 124. a second extrusion groove; 125. a driving gear; 126. a driven gear; 127. a motor; 13. a mounting seat; 131. a screw hole; 132. heat dissipation fins; 133. a fan; 14. a clutch assembly; 141. a slide base; 142. a slide bar; 143. a pressing member; 144. an elastic member; 2. a coating mechanism; 21. a nozzle; 22. a heat generating member; 3. a blockage warning mechanism; 31. a butting wheel; 32. a detection member; 4. a consumable; 5. a delivery pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
As illustrated in fig. 1 to 5, the present embodiment proposes, in a first aspect, an FDM3D print head including an extrusion mechanism 1, a coating mechanism 2, and a jam warning mechanism 3; the extrusion mechanism 1 comprises a throat pipe 11 and an extrusion assembly 12; the throat pipe 11 is provided with a feeding end and a discharging end, and an exposed groove hole 111 is formed in the throat pipe 11 and positioned between the feeding end and the discharging end; the extrusion assembly 12 is arranged at the feed end of the throat 11 and used for conveying the consumable 4 into the throat 11; the blockage warning mechanism 3 comprises a butting wheel 31 and a detection piece 32, the butting wheel 31 is rotatably arranged on one side of the throat pipe 11, and part of the butting wheel 31 extends into the exposed groove hole 111 and is butted with the consumable 4; the detection piece 32 is electrically connected with the extrusion assembly 12, and the detection piece 32 is configured to detect whether the butting wheel 31 rotates or not and generate a detection result to the extrusion assembly 12; the coating mechanism 2 comprises a nozzle 21, and the nozzle 21 is communicated with the discharge end of the throat 11.
Based on the technical scheme, the extrusion assembly 12 can extrude the consumable 4 so that the consumable 4 can be conveyed into the throat 11, and is extruded from the nozzle 21 through the throat 11 so as to perform 3D model printing; when the consumable 4 is conveyed in the throat pipe 11, the consumable 4 is abutted against the abutting wheel 31 extending into the exposed groove hole 111 of the throat pipe 11, the consumable 4 moves to drive the abutting wheel 31 to rotate, if the nozzle 21 is blocked and the consumable 4 cannot be extruded, namely the consumable 4 cannot move, the abutting wheel 31 does not rotate, at the moment, the detection part 32 detects that the abutting wheel 31 does not rotate, the detection result is sent to the extrusion component 12, and the extrusion component 12 stops conveying the consumable 4 into the throat pipe 11; under normal conditions, nozzle 21 is not blockked up, and consumptive material 4 can be extruded, and consumptive material 4 can move in choke 11 promptly, can drive butt wheel 31 and rotate, and detection piece 32 detects butt wheel 31 and rotates, can not send the signal and give and extrude subassembly 12, extrudes subassembly 12 immediately and normally transports consumptive material 4 in choke 11.
Therefore, the printing head can realize the blockage alarm of the nozzle 21 so as to dredge the nozzle 21 in time and ensure that the model printing work can be carried out smoothly.
Still be provided with conveyer pipe 5 in this printer head, conveyer pipe 5 is used for carrying consumptive material 4, and conveyer pipe 5's discharge end is close to in extrusion subassembly 12 for carry consumptive material 4 for extrusion subassembly 12, extrusion subassembly 12 can extrude consumptive material 4, transport in 11 throats in the past.
Specifically, the conventional FDM3D print head is generally large in volume, while the FDM3D print head in the embodiment of the present application integrates a plurality of mechanisms such as the extrusion mechanism 1, the coating mechanism 2, and the blockage warning mechanism 3 (in the mounting seat 13 below), so that the volume of the 3D print head is significantly reduced compared with the conventional FDM3D print head; in the FDM3D printer, since the FDM3D printing head needs to cover the whole printing region, the volume of the FDM3D printing head determines the actual printing volume of the FDM3D printer in the same motion space, that is, the smaller the volume of the FDM3D printing head is, the larger the printing region available in the FDM3D printer in the same motion space is, and the larger the printing volume is.
Therefore, the FDM3D printing head can increase the volume of 3D printing.
Specifically, the abutment wheel 31 includes a grating wheel, the detecting member 32 includes a photoelectric switch, the periphery of the grating wheel has light-transmitting portions and light-shielding portions which are distributed in an interlaced manner, when the grating wheel rotates, light can pass through the light-transmitting portions and transmit into a light signal receiving end of the photoelectric switch, the photoelectric switch receives a light signal, or light is shielded by the light-shielding portions and cannot transmit into the light signal receiving end of the photoelectric switch, the photoelectric switch cannot receive the light signal, and along with continuous rotation of the grating wheel, the photoelectric switch repeatedly receives the light signal and cannot receive the light signal, and if the grating wheel does not rotate, the photoelectric switch continuously receives the light signal or cannot receive the light signal, here, the photoelectric switch can determine whether the grating wheel is in a rotating or stopping state, so as to determine whether the nozzle 21 is blocked, and if the nozzle 21 is blocked, the photoelectric switch can send a signal to the extruding component 12, and the extruding component 12 stops conveying the consumable 4.
The utility model provides an other revolution mechanic can be chooseed for use to butt wheel 31, and detect piece 32 can choose for use hall response magnet and hall sensor, install hall response magnet on butt wheel 31, when butt wheel 31 rotates, hall response magnet can reciprocate to be close to hall sensor and keep away from hall sensor's motion, hall sensor is in the state that detects hall response magnet, switch in the state that can not detect hall response magnet, and if butt wheel 31 stall, hall response magnet can be in the state that is close to hall sensor or keeps away from hall sensor always, hall sensor can detect hall response magnet or can not detect hall response magnet always promptly, herein, hall sensor can detect whether butt wheel 31 is in the rotation.
The utility model provides a detection piece 32 can also choose for use the encoder, the encoder sets up on butt joint wheel 31, can detect butt joint wheel 31's turned angle, if butt joint wheel 31 is in the rotation always, its turned angle is changing (increasing always), the encoder alright through the turned angle's that detects change, judge that butt joint wheel 31 is in the rotation, and if butt joint wheel 31 stall, the turned angle of butt joint wheel 31 that the encoder detected just can remain unchanged afterwards, herein, the encoder alright in order to judge that butt joint wheel 31 is in stall's state.
Generally, the consumable 4 for performing 3D printing is in a strip shape, and in order to extrude the consumable 4 well and realize transportation into the throat 11, the extrusion assembly 12 of the present application includes a first extrusion gear 121 and a second extrusion gear 122; a first end of the first extrusion gear 121 and a first end of the second extrusion gear 122 are engaged; the first end of the first extrusion gear 121 has an outer diameter larger than that of the second end thereof, and the first end of the second extrusion gear 122 has an outer diameter larger than that of the second end thereof; the second end of the first extrusion gear 121 is engaged with the second end of the second extrusion gear 122 to press the consumable 4.
The first extrusion gear 121 rotates to drive the second extrusion gear 122 to rotate synchronously; and because the outer diameter of the first end of the first extrusion gear 121 is greater than that of the second end thereof, and the outer diameter of the first end of the second extrusion gear 122 is greater than that of the second end thereof, in the rotating process of the first extrusion gear 121 and the second extrusion gear 122, the second end of the first extrusion gear 121 and the second end of the second extrusion gear 122 are matched with each other to extrude the consumable 4 together, and the consumable 4 is conveyed into the throat 11.
In order to better extrude the consumable 4, a plurality of first extrusion grooves 123 are formed in the second end of the first extrusion gear 121, and the plurality of first extrusion grooves 123 are circumferentially distributed along the second end of the first extrusion gear 121; the second end of extruding gear 122 at the second has been seted up a plurality of seconds and has been extruded groove 124, a plurality of seconds are extruded groove 124 and are followed the second end circumference distribution that gear 122 was extruded to the second, it is the same that groove 123 is extruded to the first shape of extruding groove 123 and second, when extrusion consumptive material 4, consumptive material 4 can sink into first extrusion groove 123, the second is extruded in the groove 124, first extrusion gear 121, gear 122 rotation is extruded to the second, consumptive material 4 just can be driven, and remove, herein, alright carry in realizing transporting consumptive material 4 toward choke 11.
When the consumable 4 is used up, the consumable 4 needs to be replaced with a new consumable 4, and for this reason, the extrusion mechanism 1 of the present application further includes a mounting seat 13 and a clutch assembly 14; the throat pipe 11 is arranged in the mounting seat 13; the clutch assembly 14 comprises a sliding seat 141, two sliding rods 142, a pressing piece 143 and an elastic piece 144; the sliding seat 141 is arranged in the mounting seat 13 in a sliding manner; the two sliding rods 142 are arranged side by side, one ends of the two sliding rods 142 are connected to the pressing piece 143, and the other ends of the two sliding rods 142 are connected to the sliding base 141; the first extrusion gear 121 and the second extrusion gear 122 are both positioned between the two slide bars 142, and the second extrusion gear 122 is rotatably arranged on the slide carriage 141; both ends of the elastic member 144 are respectively connected to the sliding seat 141 and the mounting seat 13; the contact roller 31 is disposed on the slider 141.
When the pressing member 143 is pressed to move, the slide bar 142 and the slide seat 141 are driven to move, and further the second extrusion gear 122 and the contact roller 31 are driven to move, and when the second extrusion gear 122 is far away from the first extrusion gear 121 and the contact roller 31 is far away from the exposed slot 111 on the throat 11, the consumable 4 can be installed in the throat 11. In the present application, a clamping structure may be disposed on the mounting seat 13, for clamping the sliding seat 141 when the second extrusion gear 122 is far away from the first extrusion gear 121 and the abutment wheel 31 is far away from the exposed slot 111 on the throat 11, that is, when the sliding seat 141 is far away from the first extrusion gear 121, so as to prevent the sliding seat 141 from sliding back under the elastic force of the elastic element 144, which affects the replacement of the consumable 4; then, the pressing member 143 is pressed again to make the sliding base 141 leave the engaging structure on the mounting base 13, so that the sliding base 141 can slide back under the elastic force of the elastic member 144, so that the second extrusion gear 122 can be engaged with the first extrusion gear 121, and the abutment wheel 31 can extend into the exposed slot 111 of the throat 11 to abut against the newly replaced consumable 4.
This application also can not set up the joint structure on mount pad 13, when changing consumptive material 4, can press the pressing piece 143 with the hand always, makes slide 141 be in the state of keeping away from first extrusion gear 121 always, loosens the hand, and slide 141 just can move back under the elastic force effect of elastic component 144.
The pressing member 143 and the slide bar 142, and the slide bar 142 and the slide base 141 of the present application are connected by screws.
The power take off end of motor 127 is connected with driving gear 125, and motor 127 drive driving gear 125 rotates to drive driven gear 126, first extrusion gear 121 and rotate, and then drive the second and extrude gear 122 and rotate, first extrusion gear 121 and second extrusion gear 122 alright mutually support, extrude consumptive material 4.
The utility model provides an external diameter of driving gear 125 is less than driven gear 126's external diameter, motor 127 drive driving gear 125, when drive driven gear 126 rotates, one-level speed reduction can be realized, first rotational speed of extruding gear 121 is less than motor 127 power output shaft's rotational speed promptly, first extruding gear 121, second extrusion gear 122 can extrude consumptive material 4 slowly, and like this, can prevent that consumptive material 4 from extruding the speed too fast, and nozzle 21 fails in time with consumptive material 4 blowout, final consumptive material 4 is in nozzle 21 department jam.
In this application, on the mount pad 13, and be located one side of the pressing piece 143 and seted up a plurality of screw holes 131, this printer head alright in order to overhaul the time to printer head on the organism of printer through these screw holes 131, can dismantle printer head from the organism very conveniently.
In some embodiments, the mounting base 13 is provided with a plurality of heat dissipation fins 132; and a fan 133 is disposed at one side of the mounting seat 13, and the fan 133 blows air, which can enter the inside of the mounting seat 13 through the holes between the heat dissipation fins 132 to dissipate heat of the components inside the mounting seat 13, such as the driving gear 125, the driven gear 126, the first extrusion gear 121, and the second extrusion gear 122.
Coating mechanism 2 still includes heating member 22, heating member 22 sets up in the discharge end of choke 11, heating member 22 can the production of heat, be used for heating consumptive material 4 in the discharge end of choke 11 and in the nozzle 21, make consumptive material 4 become the melting form, thereby, when consumptive material 4 spouts from nozzle 21, can form the filament, afterwards, nozzle 21 alright in order under the control of computer, do the plane motion according to the cross-section profile information of product part, one deck cross-section shaping is accomplished the back, carry out the coating of next layer cross-section again, so circulation, finally form three-dimensional product.
In a second aspect, an embodiment of the present application further provides a 3D printer, which includes the FDM3D print head as described in the first aspect, the FDM3D print head is detachably mounted on the body, and specifically, the mounting base 13 of the FDM3D print head is provided with a plurality of screw holes 131 for connecting with the body.
This printer can make things convenient for dismouting 3D to beat printer head's nozzle 21 and dredge the processing in order to, perhaps, overhaul printer head.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that "over 8230" \8230on "," over 82308230; "over 8230;" and "over 8230; \8230; over" in the present disclosure should be interpreted in the broadest manner such that "over 8230;" over 8230 ";" not only means "directly over something", but also includes the meaning of "over something" with intervening features or layers therebetween, and "over 8230;" over 8230 ";" or "over 8230, and" over "not only includes the meaning of" over "or" over "but also may include the meaning of" over "or" over "with no intervening features or layers therebetween (i.e., directly over something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.
It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. An FDM3D printing head is characterized by comprising an extrusion mechanism, a coating mechanism and a blockage alarm mechanism;
the extrusion mechanism comprises a throat pipe and an extrusion assembly;
the throat pipe is provided with a feeding end and a discharging end, and an exposed groove hole is formed in the throat pipe and is positioned between the feeding end and the discharging end;
the extrusion assembly is arranged at the feeding end of the throat pipe and used for conveying consumables into the throat pipe;
the blocking alarm mechanism comprises a butting wheel and a detection piece, the butting wheel is rotatably arranged on one side of the throat pipe, and the part of the butting wheel extends into the exposed slot hole and is butted with the consumable;
the detection piece is electrically connected with the extrusion assembly, is configured to detect whether the butting wheel rotates or not and generates a detection result to the extrusion assembly;
the coating mechanism comprises a nozzle which is communicated with the discharge end of the throat pipe.
2. An FDM3D print head according to claim 1 wherein the abutment wheel comprises a grating wheel and the detector comprises an opto-electronic switch.
3. The FDM3D print head of claim 1 wherein the extrusion assembly comprises a first extrusion gear and a second extrusion gear;
the first end of the first extrusion gear is meshed with the first end of the second extrusion gear;
the outer diameter of the first end of the first extrusion gear is larger than that of the second end of the first extrusion gear, and the outer diameter of the first end of the second extrusion gear is larger than that of the second end of the second extrusion gear;
and the second end of the first extrusion gear is matched with the second end of the second extrusion gear to extrude the consumable.
4. The FDM3D print head of claim 3, wherein the first extrusion gear has a plurality of first extrusion slots formed in a second end thereof, the plurality of first extrusion slots being circumferentially distributed along the second end of the first extrusion gear;
and the second end of the second extrusion gear is provided with a plurality of second extrusion grooves, and the second extrusion grooves are circumferentially distributed along the second end of the second extrusion gear.
5. An FDM3D print head according to claim 3 wherein the extrusion mechanism further comprises a mounting block and a clutch assembly;
the throat pipe is arranged in the mounting seat;
the clutch assembly comprises a sliding seat, two sliding rods, a pressing piece and an elastic piece;
the sliding seat is arranged in the mounting seat in a sliding manner;
the two sliding rods are arranged side by side, one ends of the two sliding rods are connected to the pressing piece, and the other ends of the two sliding rods are connected to the sliding seat;
the first extrusion gear and the second extrusion gear are both positioned between the two slide bars, and the second extrusion gear is rotatably arranged on the slide carriage;
two ends of the elastic piece are respectively connected with the sliding seat and the mounting seat;
the abutting wheel is arranged on the sliding seat.
6. The FDM3D print head of claim 5 wherein the extrusion assembly further comprises drive and driven gears;
the driving gear and the driven gear are both rotatably arranged on the mounting seat;
the driving gear is meshed with the driven gear, and the outer diameter of the driving gear is smaller than that of the driven gear;
one side of the driven gear is connected with the second end of the first extrusion gear, and the driven gear and the first extrusion gear are coaxially arranged.
7. The FDM3D print head of claim 5, wherein the mount has screw holes on one side of the press piece.
8. An FDM3D print head according to claim 5 wherein the mounting base has heat sink fins;
and one side of the mounting seat is provided with a fan.
9. The FDM3D print head of claim 1 wherein the coating mechanism further comprises a heat generating component disposed at the outfeed end of the throat.
10. A 3D printer comprising an FDM3D print head as claimed in any of claims 1 to 9, the FDM3D print head being removably mounted to the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222850799.6U CN218489118U (en) | 2022-10-26 | 2022-10-26 | FDM3D beats printer head and 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222850799.6U CN218489118U (en) | 2022-10-26 | 2022-10-26 | FDM3D beats printer head and 3D printer |
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| CN218489118U true CN218489118U (en) | 2023-02-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116442518A (en) * | 2023-03-30 | 2023-07-18 | 苏州研拓自动化科技有限公司 | Equipment based on macromolecular material 3D prints |
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2022
- 2022-10-26 CN CN202222850799.6U patent/CN218489118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116442518A (en) * | 2023-03-30 | 2023-07-18 | 苏州研拓自动化科技有限公司 | Equipment based on macromolecular material 3D prints |
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