CN218593692U - 3D printer broken putty detection mechanism and 3D printer - Google Patents

Abstract

The application discloses stifled material detection mechanism and 3D printer are disconnected to 3D printer for detect the disconnected putty of 3D printer. The application includes: the first rotating assembly is connected with the shell in a rotating mode; the first rotating assembly and the second rotating assembly are used for clamping the consumables, and the consumables drive the first rotating assembly and the second rotating assembly to rotate when moving; the optical sensing assembly is fixed on the shell and corresponds to the first rotating assembly, and the optical sensing assembly is used for acquiring the rotation information of the first rotating assembly according to the received light reflected by the first rotating assembly.

Description

3D printer broken putty detection mechanism and 3D printer

Technical Field

The application relates to the technical field of 3D printing equipment, especially, relate to a 3D printer broken putty detection mechanism and 3D printer.

Background

3D printing is a rapid prototyping technique, also known as additive manufacturing, which is a technique that builds objects by using bondable materials such as metals or plastics in various shapes and by printing layer by layer on the basis of digital model files. 3D printing is typically achieved using digital technology material printers. The method is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and is gradually used for directly manufacturing some products, and parts printed by the technology exist. The technology has applications in jewelry, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, and other fields.

The 3D printer using the linear material may fail to print due to the material not being smoothly pushed into the print head during the printing process. Such as knotting, jamming, breaking, exhaustion or nozzle clogging. When the printing is not finished, the printer can timely find and suspend the printing, and can recover the printing after the fault is eliminated to recover the loss, so that the machine needs a part capable of timely finding the fault.

In the prior art, a photoelectric switch is adopted to judge a grating to form an on-off signal; a microswitch is adopted, and an on-off signal is formed by touching the microswitch through a rotating gear to judge the motion state of the wire. The method has the advantages that the detection frequency is low, so that the machine still runs for a period of time after being in fault and stops, a vacancy is formed in a model printed by the machine, and the printing effect of the model is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a 3D printer material blockage detection mechanism and a 3D printer,

this application first aspect provides a stifled material detection mechanism is broken to 3D printer, includes:

a shell body, a plurality of first connecting rods and a plurality of second connecting rods,

a first rotating assembly rotatably connected with the housing;

the first rotating assembly and the second rotating assembly are used for clamping the consumables, and the consumables drive the first rotating assembly and the second rotating assembly to rotate when moving;

the optical sensing assembly is fixed on the shell and corresponds to the first rotating assembly, and the optical sensing assembly is used for acquiring the rotation information of the first rotating assembly according to the received light reflected by the first rotating assembly.

Optionally, the optical sensing assembly includes a light emitting element and a signal processing assembly, the light emitting element and the signal processing assembly correspond to the first rotating assembly, the light emitting element is used for emitting light to the first rotating assembly, and the signal processing assembly is used for receiving light reflected by the first rotating assembly to obtain rotation information of the first rotating assembly.

Optionally, the optical sensing assembly includes a circuit board and a lens assembly disposed on the circuit board, and the lens assembly is configured to guide the light to the first rotating assembly;

the signal processing assembly comprises a light receiving part and a processing chip, the light receiving part, the processing chip and the light emitting part are respectively electrically connected with the circuit board, and the light receiving part is used for receiving the light reflected by the first rotating assembly to form an image and sending the image to the processing chip;

optionally, the lens assembly is located between the light receiving element and the first rotating assembly, and a light hole through which the light passes is formed in the lens assembly;

the circuit board is located in the shell, the first rotating assembly is located outside the shell, a through hole is formed in the shell, and the light receiving piece is located in the through hole.

Optionally, the first rotating assembly includes a first rotating wheel and a rotating disc, the first rotating wheel is rotatably connected with the housing, the first rotating wheel is further in transmission connection with the rotating disc, a gap through which consumables can pass is formed between the first rotating wheel and the second rotating assembly, and the optical sensing assembly corresponds to the rotating disc;

optionally, the diameter of the turntable is larger than the diameter of the first rotating wheel;

and a groove with teeth is formed in the first rotating wheel along the circumferential direction of the first rotating wheel.

Optionally, the second runner assembly includes elastic component, handle and second and rotates the wheel, the handle with the casing rotates to be connected, the second rotate the wheel with the handle rotates to be connected, the second rotate the wheel with including the gap that supplies the consumptive material to pass between the first runner assembly, the elastic component with the handle butt, the elastic component is used for giving the handle to the power of first runner assembly, so that first runner assembly with first runner assembly presss from both sides tightly the consumptive material.

Optionally, the elastic member includes a torsion spring, and the torsion spring abuts against the housing and the handle respectively;

the first end of handle with the casing rotates to be connected, the first end of handle is seted up jaggedly, the torsional spring install in the breach.

Optionally, the housing includes a base and a cover plate, the base and the cover plate are connected in a clamping manner, the base and the cover plate are connected to form an accommodating space including a feed port and a discharge port, and at least part of the first rotating assembly and at least part of the second rotating assembly are located in the accommodating space;

the base sets up the card on one of them with the apron and establishes protrudingly, sets up the card on another and establishes the groove, the base with the apron passes through the card establish protrudingly with the card establishes the groove block and connects.

The second aspect of the application provides a 3D printer, the 3D printer includes as optional in the first aspect and the first aspect the 3D printer cuts off putty detection mechanism.

According to the technical scheme, the method has the following advantages:

the utility model provides an among the 3D printer stifled material detection mechanism of section, first runner assembly rotates with the casing to be connected, when the consumptive material motion, can drive first runner assembly and rotate, and the optical sensing subassembly corresponds with first runner assembly, can acquire the rotation information of first runner assembly through the optical runner assembly, thereby can judge whether the consumptive material of printer takes place the putty phenomenon, for example, when the wire rod is knotted, the jamming, the material fracture, when condition such as exhaust or shower nozzle jam takes place, the wire rod can not normally be carried, rotation information through first runner assembly can embody, if detect when the motion of first runner assembly and machine wire rod use quantity are not proportional, judge machine trouble and pause and print, resume printing after waiting for troubleshooting, this optical sensing subassembly measures the motion condition of first runner assembly through the optical sensing principle, indirectly detect the motion of wire rod, play and detect consumptive material disconnected material, the jamming, the effect of jamming, can realize the detection and the judgement of ultrahigh frequency, judge the precision is higher, thereby can in time detect abnormal conditions and take place, thereby can improve the effect that the model printed.

Drawings

Fig. 1 is an exploded schematic view of a 3D printer blockage detection mechanism provided in the present application;

FIG. 2 is an exploded view of one embodiment of an optical sensing assembly provided herein;

FIG. 3 is a schematic structural diagram of one embodiment of a lens assembly provided herein;

fig. 4 is a schematic cross-sectional structure view of an embodiment of a 3D printer blockage detection mechanism provided in the present application;

fig. 5 is a schematic partial structural view of a broken-off blockage detection mechanism of the 3D printer provided in the present application;

fig. 6 is a schematic side structure view of an embodiment of a 3D printer blockage detection mechanism provided in the present application;

fig. 7 is a schematic side structure view of another embodiment of a 3D printer blockage detection mechanism provided in the present application;

fig. 8 is a schematic side structure view of another embodiment of a 3D printer blockage detection mechanism provided in the present application;

fig. 9 is a back structural schematic view of an embodiment of a 3D printer blockage detection mechanism provided in the present application;

fig. 10 is a schematic top structure view of an embodiment of a 3D printer blockage detection mechanism provided in the present application.

Detailed Description

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for explaining relative positional relationships between the respective components or constituent parts, and do not particularly limit specific mounting orientations of the respective components or constituent parts.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, the structures, the proportions, the sizes, and the like, which are illustrated in the accompanying drawings and described in the present application, are intended to be considered illustrative and not restrictive, and therefore, not limiting, since those skilled in the art will understand and read the present application, it is understood that any modifications of the structures, changes in the proportions, or adjustments in the sizes, which are not necessarily essential to the practice of the present application, are intended to be within the scope of the present disclosure without affecting the efficacy and attainment of the same.

The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Referring to fig. 1 to 10, the present application provides a mechanism for detecting a material jam of a 3D printer, including:

the shape of the shell body 001 is changed,

the first rotating assembly 01, the first rotating assembly 01 is rotatably connected with the shell 001;

the second rotating assembly 02 is rotatably connected with the shell 001, a gap for the consumable 11 to pass through is formed between the second rotating assembly 02 and the first rotating assembly 01, the first rotating assembly 01 and the second rotating assembly 02 are used for clamping the consumable 11, and the consumable 11 drives the first rotating assembly 01 and the second rotating assembly 02 to rotate when moving;

optical sensing subassembly 03, optical sensing subassembly 03 are fixed on casing 001, and optical sensing subassembly 03 corresponds with first rotating assembly 01, and optical sensing subassembly 03 is used for obtaining first rotating assembly 01's rotation information according to the light of receiving through the reflection of first rotating assembly 01.

In this embodiment, first rotating assembly 01 contacts with the consumptive material, can drive first rotating assembly 01 when the consumptive material takes place to move and rotate, the rotation information of first rotating assembly 01 is gathered to rethread optical sensing subassembly 03, thereby the 3D printer can judge whether the printer takes place trouble such as putty through rotating the information, wherein first rotating assembly 01's concrete structure can have multiple implementation, following embodiment will explain in detail some concrete structure wherein, furthermore, can also be provided with second rotating assembly 02, come to press from both sides consumptive material 11 through the cooperation of second rotating assembly 02 and first rotating assembly 01, during the consumptive material motion, can drive first rotating assembly 01 and the motion of second rotating assembly 02, under the cooperation of second rotating assembly 02 is pressed from both sides tightly, make the rotation of first rotating assembly 01 more accurate. Further, the second rotating assembly 02 may be provided with a structure capable of achieving releasing, and a specific subsequent embodiment will be described in detail.

The utility model provides an among 3D printer stifled detection mechanism of section, first runner assembly 01 rotates with the casing to be connected, when the consumptive material motion, can drive first runner assembly 01 and rotate, and optical sensing subassembly 03 corresponds with first runner assembly 01, can acquire the rotation information of first runner assembly 01 through optical runner assembly 03, thereby can judge whether the consumptive material of printer takes place the putty phenomenon, for example, when the wire rod is knotted, the jamming, the material fracture, when the condition such as exhaust or shower nozzle jam takes place, the wire rod can not normally be carried, rotation information through first runner assembly can embody, if detect the motion of first runner assembly 01 and when machine wire rod use amount is disproportionate, if not correspond with the extrusion of the extruder of 3D printer, the 3D printer can judge the machine trouble and suspend printing, wait to get rid of after the trouble and resume printing, this optical sensing subassembly 03 measures the motion condition of first runner assembly through the optical sensing principle, indirectly detect the motion of wire rod, play and detect the putty, the effect of blockage, the effect of jamming, the detection subassembly 03 can realize the detection of frequency and judge that the ultrahigh frequency is abnormal, thereby the detection of the consumptive material can in time improve the abnormal printing effect, thereby the high accuracy.

Optionally, the optical sensing assembly 03 includes a light emitting element 031 and a signal processing element 032, the light emitting element 031 and the signal processing element 032 both correspond to the first rotating assembly 01, the light emitting element 031 is configured to emit light beams irradiated onto the first rotating assembly 01, and the signal processing element 032 is configured to obtain rotation information of the first rotating assembly 01 according to the received light beams reflected by the first rotating assembly 01.

Optionally, the optical sensing assembly 03 further includes a circuit board 033 and a lens assembly 034 disposed on the circuit board 033, wherein the lens assembly 034 is used for guiding light to the first rotating assembly 01;

the signal processing assembly 032 comprises a light receiving part 0321 and a processing chip 0322, the light receiving part 0321, the processing chip 0322 and the light emitting part 031 are electrically connected to the circuit board 033 respectively, and the light receiving part 0321 is used for receiving the light reflected by the first rotating assembly 01 to form an image and sending the image to the processing chip 0322;

in practical application, optical sensing subassembly 03 can shine on first rotating assembly 01 through emission of light spare 031 transmission light, light transmits to signal processing subassembly 032 through first rotating assembly 01 transmission, thereby acquire first rotating assembly 01's rotation information through the processing of signal processing subassembly 032, wherein the rotation information includes the rotational speed, the rotation volume etc., emission of light spare 031 can be emitting diode, can make the image of shooing clearer through emission of light spare, concretely, signal processing subassembly 032 can include receiving piece 0321 and processing chip 0322, receiving piece 0321 receives the reflected light and form image transmission and carry out the analysis to processing chip 0322, through comparing the analysis to many images, can obtain information such as the rotation volume and the rotational speed of first rotating assembly 01, the sending of light and the formation speed of image are fast, the method can realize high-frequency detection and judgement.

Optionally, the lens assembly 034 is located between the light receiving element 0321 and the first rotating assembly 01, and the lens assembly 034 is provided with a light hole 0341 for light to pass through;

further, a lens assembly 034 may be further provided, and the lens assembly 034 may be located between the light receiving element 0321 and the first rotating assembly 01, so that the structure can be more compact, and the thickness of the detection mechanism can be reduced. Referring to fig. 3, in which a lens assembly 034 guides light emitted from a light emitting element 031 to a first rotating assembly 01, so as to provide a light source, fig. 3 shows an embodiment of the lens assembly 034, in which light emitted from the light emitting element 031 is reflected by the lens assembly 034 multiple times and then irradiated onto the first rotating assembly 01. The light reflected by the first rotating assembly 01 is irradiated to the light receiving element 0321 of the signal processing assembly 032 through the light hole 0341 of the lens assembly 034.

Specifically, the circuit board 033 is located in the housing 001, part of the first rotating assembly 01 is located outside the housing 001, a through hole 0010 is formed in the housing 001, and the light receiving part 0321 is located in the through hole 0010. This structure can reduce the thickness of detection mechanism to can form the protection to optical sensing component 03.

Optionally, the first rotating assembly 01 includes a first rotating wheel 010 and a rotating disc 011, the first rotating wheel 010 is rotatably connected with the housing 001, the first rotating wheel 010 is further in transmission connection with the rotating disc 011, a gap for the consumable 11 to pass through is formed between the first rotating wheel 010 and the second rotating assembly 02, and the optical sensing assembly 03 corresponds to the rotating disc 011.

The embodiment of the first rotating assembly 01 provided in the embodiment comprises a first rotating wheel 010 and a rotating disc 011, wherein consumables can drive the first rotating wheel 010 to rotate during movement, and further drive the rotating disc 011 to rotate, and the transmission connection between the first rotating wheel 010 and the rotating disc 011 can be direct integrated into one piece, also can be direct fixed connection, also can be coaxial rotation, and also can be connected through other transmission devices. Rotate between first rotation subassembly 01 and the casing 001 and be connected, concrete connection mode can be realized through bearing 012, is provided with the axis of rotation on the first rotation wheel 010 for example, and the both ends of this axis of rotation are passed through bearing 012 and are rotated with casing 001 and be connected, and the carousel 011 cover is established in the axis of rotation to follow the axis of rotation and rotate.

Optionally, the diameter of the turntable 011 is larger than the diameter of the first rotating wheel 010;

a groove 0101 with teeth is formed in the first rotating wheel 010 along the circumferential direction of the first rotating wheel 010.

To facilitate the collection of the rotation information of the first rotating member 01, the diameter of the rotating disk 011 can be large, which can have a sufficiently large side. Further, a groove with teeth or a saw tooth or the like may be circumferentially disposed on the first rotating wheel 010, so as to increase friction with the consumable 11, so that the first rotating wheel 010 can better rotate along with the movement of the consumable 11.

Optionally, the second rotates subassembly 02 and includes elastic component 021, handle 022 and second and rotates wheel 020, handle 022 rotates with casing 001 to be connected, the second rotates wheel 020 and handle 022 and rotates to be connected, the second rotates the gap that includes supplying consumptive material 11 to pass between wheel 020 and the first subassembly of rotating 01, elastic component 021 and handle 022 butt, elastic component 021 is used for giving handle 022 to the first power of rotating wheel 010 of the first subassembly 01 of rotating to make the second rotate wheel 020 and first subassembly 01 and press from both sides tight consumptive material 11.

Second rotating assembly 02 is used for cooperating first rotating assembly 01 to press from both sides tightly the consumptive material, make first rotating assembly 01 can be better rotate along with the consumptive material motion, in practice, second rotating assembly 02 can have multiple realization, a specific realization structure is provided in this embodiment, this structure includes elastic component 021, handle 022 and second rotating wheel 020, elastic component 021 is used for providing elasticity to handle 022, make handle 022 have the trend towards first rotating assembly 01, and second rotating wheel 020 and consumptive material 11 contact, it rotates wheel 020 and second rotating wheel 020 to drive first rotating wheel 010 and second rotating wheel 020 during the consumptive material 11 motion, for example, second rotating wheel 020 and first rotating wheel 010 are pressed from both sides tight consumptive material 11 each other, be favorable to first rotating wheel 010 to follow the motion of consumptive material and rotate like this, second rotating wheel 020 can rotate with handle 022 through the cylindric round pin and be connected.

Optionally, the elastic member 021 includes a torsion spring 0211, and the torsion spring 0211 abuts against the shell 001 and the handle 022 respectively;

the first end and the casing 001 of handle 022 are rotated and are connected, and breach 0220 has been seted up to the first end of handle 022, and torsional spring 0211 installs in breach 0220.

In practical applications, the elastic member 021 can have a variety of structures, and the embodiment provides a specific structure, in which the elastic member 021 is provided with a torsion spring 0211, and the torsion spring 0211 is respectively abutted against the housing 001 and the handle 022, thereby providing elasticity for the handle 022. The first end of handle 022 can be connected with the rotation of casing 001, rotate to be connected can be realized through cylindric lock and fixed orifices, and then torsional spring 0211 can locate on the cylindric lock.

Optionally, the housing 001 includes a base 0011 and a cover 0012, the base 0011 and the cover 0012 are connected in a snap-fit manner, the base 0011 and the cover 0012 are connected to form an accommodating space including a feeding port and a discharging port, and at least a portion of the first rotating assembly 01 and at least a portion of the second rotating assembly 02 are located in the accommodating space;

base 0011 and apron 0012 set up the card on one of them and establish protruding, set up the card on the other and establish the groove, base and apron establish protruding and card through the card and establish the groove block and connect.

In other embodiments, the present application further provides a 3D printer material blockage detection mechanism, including:

the number of the shell bodies 001 is increased,

the first rotating assembly 01, the first rotating assembly 01 is rotatably connected with the shell 001;

the consumable clamping device comprises a second rotating assembly 02, the second rotating assembly 02 is rotatably connected with the shell 001, a gap for the consumable 11 to pass through is formed between the second rotating assembly 02 and the first rotating assembly 01, a first rotating wheel 010 of the first rotating assembly 01 and a second rotating wheel 020 of the second rotating assembly 02 are used for clamping the consumable 11, and the consumable 11 drives the first rotating wheel 010 of the first rotating assembly 01 and the second rotating wheel 020 of the second rotating assembly 02 to rotate when moving;

optical induction subassembly 03, optical induction subassembly 03 are fixed on casing 001, and optical induction subassembly 03 corresponds with first rotation subassembly 01, and optical induction subassembly 03 is used for obtaining the rotation information of first rotation subassembly 01 according to the light of the first reflection of rotation subassembly 01 of the process of receiving.

Wherein, the optical sensing subassembly 03 includes light emission part 031 and signal processing subassembly 032, and light emission part 031 and signal processing subassembly 032 all correspond with first rotation subassembly 01, and light emission part 031 is used for the transmission to shine the light on first rotation subassembly 01, and signal processing subassembly 032 is used for obtaining the rotation information of first rotation subassembly 01 according to the received light that reflects on first rotation subassembly 01.

The optical sensing assembly 03 comprises a circuit board 033 and a lens assembly 034 arranged on the circuit board 033, wherein the lens assembly 034 is used for guiding light rays to the first rotating assembly 01;

the signal processing assembly 032 includes light receiving part 0321 and processing chip 0322, and light receiving part 0321, processing chip 0322 and light emitting part 031 are connected with circuit board 033 electricity respectively, and light receiving part 0321 is used for receiving the light formation image that reflects through first rotation assembly 01 and sends to processing chip 0322, and further, the outside of circuit board 033 can also be provided with fixed plate 0331 for fix circuit board 033 on the casing.

The lens assembly 034 is located between the light receiving part 0321 and the first rotating assembly 01, and the lens assembly 034 is provided with a light transmitting 0341 hole for light to pass through;

circuit board 033 is located casing 001, and first rotation component 01 is located outside casing 001, has seted up through-hole 0010 on casing 001, and light receiving part 0321 is located through-hole 0010.

The first rotating assembly 01 comprises a first rotating wheel 010 and a rotating disc 011, the first rotating wheel 010 is rotatably connected with the shell 001 and is also in transmission connection with the rotating disc 011, a gap for the consumable 11 to pass through is formed between the first rotating wheel 010 and the second rotating assembly 02, and the optical sensing assembly 03 corresponds to the rotating disc 011;

wherein, the diameter of the rotating disc 011 is larger than that of the first rotating wheel 010;

a groove 0101 with teeth is formed in the first rotating wheel 010 along the circumferential direction of the first rotating wheel 010.

Wherein, the second rotates subassembly 02 including elastic component 021, handle 022 and second and rotates wheel 020, handle 022 rotates with casing 001 to be connected, and the second rotates wheel 020 and handle 022 to rotate and is connected, and the second rotates the gap including supplying consumptive material 11 to pass between wheel 020 and the first subassembly of rotating 01, and elastic component 021 and handle 022 butt, elastic component 021 are used for giving the handle 022 to the power of the first subassembly 01 of rotating to make first rotation wheel 010 and the first subassembly 01 of rotating press from both sides tight consumptive material 11.

Wherein, the elastic part 021 comprises a torsion spring 0211, and the torsion spring 0211 is respectively abutted against the shell 001 and the handle 022;

the first end of handle 022 rotates with casing 001 to be connected, and breach 0220 has been seted up to the first end of handle 022, and torsional spring 0211 is installed in breach 0220.

The shell 001 comprises a base 0011 and a cover plate 0012, the base 0011 is connected with the cover plate 0012 in a clamping mode, the base 0011 is connected with the cover plate 0012 to form an accommodating space comprising a feeding hole and a discharging hole, and at least part of the first rotating assembly 01 and at least part of the second rotating assembly 02 are located in the accommodating space;

base 0011 and apron 0012 set up the card on one of them and establish protruding, set up the card on the other and establish the groove, base and apron establish protruding and card through the card and establish the groove block and connect.

This embodiment still provides a 3D printer, and this 3D printer includes that any one of above-mentioned 3D printer cuts up putty detection mechanism.

It is intended that the foregoing description of the disclosed embodiments enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a 3D printer stifled material detection mechanism of disconnection which characterized in that includes:

a shell body, a plurality of first connecting rods and a plurality of second connecting rods,

a first rotating assembly rotatably connected with the housing;

the first rotating assembly and the second rotating assembly are used for clamping the consumables, and the consumables drive the first rotating assembly and the second rotating assembly to rotate when moving;

the optical sensing assembly is fixed on the shell and corresponds to the first rotating assembly, and the optical sensing assembly is used for acquiring the rotation information of the first rotating assembly according to the received light reflected by the first rotating assembly.

2. The 3D printer jam detection mechanism of claim 1, wherein the optical sensing assembly includes a light emitting element and a signal processing assembly, the light emitting element and the signal processing assembly both correspond to the first rotating assembly, the light emitting element is configured to emit light that impinges on the first rotating assembly, and the signal processing assembly is configured to obtain rotation information of the first rotating assembly according to the received light that is reflected by the first rotating assembly.

3. The 3D printer jam detection mechanism of claim 2, wherein the optical sensing assembly further includes a circuit board and a lens assembly disposed on the circuit board, the lens assembly being configured to direct the light toward the first rotation assembly;

the signal processing assembly comprises a light receiving part and a processing chip, the light receiving part, the processing chip and the light emitting part are respectively electrically connected with the circuit board, and the light receiving part is used for receiving the light reflected by the first rotating assembly to form an image and sending the image to the processing chip.

4. The 3D printer blocking detection mechanism according to claim 3,

the lens assembly is positioned between the light receiving piece and the first rotating assembly, and a light hole for the light rays to pass through is formed in the lens assembly;

the circuit board is located in the shell, part of the first rotating assembly is located outside the shell, a through hole is formed in the shell, and the light receiving piece is located in the through hole.

5. The 3D printer disconnection detection mechanism of claim 1, wherein the first rotation assembly comprises a first rotation wheel and a turntable, the first rotation wheel is rotatably connected with the housing, the first rotation wheel is further in transmission connection with the turntable, a gap for passing consumables is formed between the first rotation wheel and the second rotation assembly, and the optical sensing assembly corresponds to the turntable.

6. The 3D printer jam detecting mechanism of claim 5, wherein the diameter of the turntable is larger than the diameter of the first rotating wheel;

and a groove with teeth is formed in the first rotating wheel along the circumferential direction of the first rotating wheel.

7. The 3D printer material blockage detection mechanism according to claim 1, wherein the second rotating assembly comprises an elastic member, a handle and a second rotating wheel, the handle is rotatably connected with the housing, the second rotating wheel is rotatably connected with the handle, a gap for consumable materials to pass through is formed between the second rotating wheel and the first rotating assembly, the elastic member abuts against the handle, and the elastic member is used for providing force to the first rotating assembly from the handle so that the consumable materials are clamped by the second rotating wheel and the first rotating assembly.

8. The 3D printer blocking detection mechanism of claim 7, wherein the elastic member comprises a torsion spring, and the torsion spring is respectively abutted against the housing and the handle;

the first end of the handle is rotatably connected with the shell, a notch is formed in the first end of the handle, and the torsion spring is installed in the notch.

9. The 3D printer blocking detection mechanism according to claim 1, wherein the housing comprises a base and a cover plate, the base and the cover plate are connected in a clamping manner, the base and the cover plate are connected to form an accommodating space comprising a feeding port and a discharging port, and at least part of the first rotating assembly and at least part of the second rotating assembly are located in the accommodating space;

the base sets up the card on one of them with the apron and establishes protrudingly, sets up the card on another and establishes the groove, the base with the apron passes through the card establish protrudingly with the card establishes the groove block and connects.

10. A 3D printer comprising the 3D printer jam detection mechanism of any one of claims 1 to 9.

Images