Detection device for 3D printer and 3D printer

Abstract

The utility model provides a detection device for the 3D printer and the 3D printer, the detection device for the 3D printer comprises a main body and a first detection unit, the main body is provided with a first consumable channel for consumable movement, the main body is provided with a first feed port and a first discharge port, the first detection unit comprises an intermittent detection module and an extrusion detection module, the interruption detection module comprises an interruption sensor and a rotating wheel rotatably arranged in the main body, the rotating wheel is provided with a plurality of triggering parts uniformly distributed at intervals in the circumferential direction of the rotating wheel, and the extrusion detection module comprises an extrusion sensor and a movable assembly movably arranged in the main body. When the consumable is located in the first consumable channel, the movable assembly does not trigger the extrusion sensor, when the consumable is located in the first consumable channel, the movable assembly triggers the extrusion sensor, and when the consumable moves in the first consumable channel, the detection part triggers the intermittent sensor at intervals, so that whether the consumable exists or not and whether the consumable moves or not are detected, and the functions of the detection device are effectively enriched.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of 3D printer detection, and further relates to a detection device for a 3D printer and a 3D printer. BACKGROUND

[0002] A 3D printer, also known as a three-dimensional printer (3DP), belongs to the category of additive manufacturing technology and is also a machine covered by rapid prototyping technology. The device is based on a digital model file and uses materials such as special wax, powdered metal, and plastic that can be bonded to produce three-dimensional objects by layering and bonding materials. At the current stage, three-dimensional printers have been widely used in product manufacturing. Its working principle is: data and raw materials are placed into the 3D printer, and then the machine will manufacture products layer by layer according to the established program. This is a technology that constructs objects by layering and printing.

[0003] When the 3D printer is working, it uses consumables for feeding. During printing, the consumables may be broken, the length of the consumables may be insufficient, or the consumables may not be placed, which may cause the printer to be empty. Since the FDM printing process is very slow, the user cannot be on standby at the device all day long. Once the empty printing occurs, it will cause the printing to fail, resulting in unnecessary loss. Therefore, a detection device is proposed to monitor the state of the consumables of the 3D printer in real time to avoid printing failure caused by consumable problems. However, the detection function of the current device is relatively single, and it is difficult to meet the printing monitoring of the 3D printer.

[0004] Therefore, the utility model is committed to providing a detection device for a 3D printer and a 3D printer to solve the above technical problems. UTILITY MODEL CONTENT

[0005] In view of the above technical problems, the purpose of the present application is to provide a detection device for a 3D printer and a 3D printer. By arranging a discontinuous detection module and an extrusion detection module in the main body, the presence or absence of the consumables and the movement of the consumables are detected, which can effectively enrich the function of the detection device and improve the stability and reliability of the 3D printer.

[0006] In order to achieve the above purpose, a detection device for a 3D printer comprises:

[0007] A main body, a first consumable channel for moving the consumables is arranged in the main body, and a first feeding port and a first discharging port communicating with the first consumable channel are arranged on the main body;

[0008] The first detection unit comprises an intermittent detection module and a pressing detection module, the intermittent detection module comprises an intermittent sensor and a rotating wheel rotatably arranged in the main body, the rotating wheel is provided with a plurality of trigger portions uniformly distributed along the circumferential direction of the rotating wheel, and the pressing detection module comprises a pressing sensor and a movable assembly movably arranged in the main body.

[0009] When the consumable is located outside the first consumable channel, one end of the movable assembly is located in the first consumable channel, and the movable assembly does not trigger the pressing sensor; when the consumable is located in the first consumable channel, the consumable is used to drive the movable assembly to move, so that the movable assembly triggers the pressing sensor; when the consumable moves in the first consumable channel, the consumable is used to drive the rotating wheel to rotate, so that the detection portions trigger the intermittent sensor at intervals.

[0010] In some embodiments, the main body is provided with a movable channel communicating with the first consumable channel, and the movable assembly is arranged in the movable channel and is adapted to move in a direction perpendicular to the first consumable channel.

[0011] The first consumable channel is provided with a notch corresponding to the rotating wheel, and when the consumable moves in the first consumable channel, the consumable contacts the rotating wheel through the notch to drive the rotating wheel to rotate.

[0012] In some embodiments, the outer side wall of the main body is provided with an opening communicating with the movable channel, and the pressing sensor is arranged on the main body and corresponds to the opening.

[0013] In some embodiments, the movable assembly comprises:

[0014] The movable rod is matched with the opening, and the outer circumferential side of the movable rod is provided with a protruding portion.

[0015] The first elastic member is sleeved on the outer side of the movable rod, and the two ends of the first elastic member are respectively abutted on the protruding portion and the inner wall of one end of the movable channel away from the first consumable channel, so that the movable rod triggers the pressing sensor through the opening.

[0016] In some embodiments, the movable rod comprises a movable rod body and a ball, the protruding portion is arranged on the outer circumferential side of the movable rod body, and the ball is arranged at one end of the movable rod body close to the first consumable channel.

[0017] In some embodiments, the rotating wheel comprises a rotating wheel body and a roller coaxially arranged with the rotating wheel body, and a plurality of protrusions are arranged on the roller and uniformly distributed along the circumference of the roller to form the triggering part.

[0018] The rotating wheel body is arranged corresponding to the gap, and when the consumable is located outside the first consumable channel, the side of the rotating wheel body close to the gap is located in the first consumable channel.

[0019] In some embodiments, the main body is further provided with an elastic recovery assembly, which comprises:

[0020] A swing rod having a first end and a second end arranged correspondingly, the rotating wheel is rotatably arranged on the first end and located above the first consumable channel, and the second end is rotatably arranged on the main body to adjust the distance between the rotating wheel and the first consumable channel;

[0021] A second elastic member, both ends of the second elastic member are fixedly installed on the first end and the main body, respectively;

[0022] When the consumable moves in the first consumable channel, the consumable is used to press the rotating wheel body, so that the rotating wheel moves away from the first consumable channel.

[0023] In some embodiments, the intermittent sensor and the extrusion sensor are both provided with a sensing part, the sensing part comprises a transmitting end and a receiving end matched with the transmitting end;

[0024] When the movable assembly is located between the transmitting end and the receiving end, the movable assembly triggers the extrusion sensor, and when the triggering part is located between the transmitting end and the receiving end, the triggering part triggers the intermittent sensor.

[0025] In some embodiments, a second detection unit is further included, a second consumable channel for the movement of the consumable is further arranged in the main body, a second feeding port and a second discharging port are arranged on the main body and communicated with the second consumable channel, and the second detection unit comprises the intermittent detection module and the extrusion detection module.

[0026] A 3D printer comprising the detection device for 3D printer according to any one of the above, further comprising:

[0027] A host computer, the detection device for 3D printer is arranged on the host computer;

[0028] A material box, the material box is communicated with the first feeding port through a feeding pipe and used to provide the consumable;

[0029] a nozzle connected to the first discharge port by a discharge pipe.

[0030] Compared with the prior art, the detection device for the 3D printer and the 3D printer have the following beneficial effects:

[0031] 1. The detection device for the 3D printer is used, if the movable assembly triggers the extrusion sensor, it indicates that the first consumable channel is provided with consumables at this time, and then it can be determined whether the 3D printer lacks consumables, if the trigger part does not trigger the intermittent sensor at this time, it indicates that the consumables cannot move at this time, if the trigger part triggers the intermittent sensor at intervals, it indicates that the consumables move smoothly in the first consumable channel, and when the movable assembly does not trigger the extrusion sensor, it indicates that the 3D printer lacks consumables, so that the function of the detection device is enriched, the detection of various working states of the consumables is realized, unnecessary waste of the consumables is reduced, and thus the stability and reliability of the 3D printer are effectively ensured.

[0032] 2. The detection device for the 3D printer is provided, the first elastic member is sleeved outside the movable rod, when the movable rod triggers the extrusion sensor under the action of the consumables, the first elastic member is in a compressed state, when the consumables leave the main body, the movable rod can automatically move away from the extrusion sensor under the action of the restoring force of the first elastic member, and the triggering effect of the movable rod on the extrusion sensor is released.

[0033] 3. The detection device for the 3D printer is provided, when the consumables move in the first consumable channel, the rotating wheel moves away from the first consumable channel under the action of the consumables, at this time, the second elastic member is in a stretched state, so that the rotating wheel fully abuts on the consumables under the action of the restoring force of the second elastic member, and the consumables can drive the rotating wheel to rotate.

[0034] 4. The 3D printer is provided, the detection device for the 3D printer is connected with the material box and the nozzle through the feeding pipe and the discharge pipe respectively, and the consumable breakage detection between the detection device and the nozzle can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above characteristics, technical features, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and understandable manner, combined with the drawings.

[0036] Figure 1 is a structural schematic view of the detection device for the 3D printer provided by the present application;

[0037] Figure 2It is the rear view of the detection device for 3D printer provided by the utility model,

[0038] Figure 3 It is the sectional view of the detection device for 3D printer provided by the utility model,

[0039] Figure 4 It is the structural schematic diagram of the movable assembly of the detection device for 3D printer provided by the utility model,

[0040] Figure 5 It is the structural schematic diagram of the rotating wheel of the detection device for 3D printer provided by the utility model,

[0041] Figure 6 It is the structural schematic diagram of the sensing part of the detection device for 3D printer provided by the utility model,

[0042] Figure 7 It is the schematic diagram for 3D printer provided by the utility model.

[0043] Explanation of drawing reference numerals:

[0044] Body 1, first consumable channel 11, first feed inlet 12, first discharge outlet 13, second consumable channel 14, second feed inlet 15, second discharge outlet 16, intermittent detection module 2, intermittent sensor 21, rotating wheel 22, rotating wheel body 221, roller 222, trigger part 223, extrusion detection module 3, extrusion sensor 31, movable rod body 321, protruding part 322, ball 323, first elastic member 33, elastic recovery assembly 4, swing rod 41, first end 411, second end 412, second elastic member 42, first rotating shaft 43, second rotating shaft 44, sensing part 5, transmitting end 51, receiving end 52, main machine 6, nozzle 61, material box 7. DETAILED DESCRIPTION

[0045] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, and other embodiments can also be obtained.

[0046] In order to make the drawing simple, only the parts related to the application are shown in each drawing, and they do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0047] It should be further understood that the term "and / or" as used in the specification and in the claims, if any, means any one and all combinations of one or more of the associated listed items.

[0048] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0051] In this embodiment, a detection device for a 3D printer is described, which realizes the detection of consumables by the cooperation of the intermittent detection module 2 and the extrusion detection module 3, enriches the function of the detection device, and ensures the stability and reliability of the 3D printer.

[0052] Specifically, referring to the drawings Figures 1 to 7The application discloses a detection device for a 3D printer, which comprises a main body 1 and a first detection unit. The main body 1 is internally provided with a first consumable channel 11, and a first feeding port 12 and a first discharging port 13 are further arranged on the main body 1 and communicated with the first consumable channel 11. The first feeding port 12 is used for introducing the consumable into the first consumable channel 11, and the first discharging port 13 is used for discharging the consumable from the first consumable channel 11, so as to meet the requirement of the 3D printer for consumable supply during the working process. The first detection unit is installed on the main body 1 and used for detecting the state of the consumable, and comprises an intermittent detection module 2 and an extrusion detection module 3. The intermittent detection module 2 comprises an intermittent sensor 21 and a rotating wheel 22, the rotating wheel 22 is rotatably arranged in the main body 1 and is provided with a plurality of trigger portions 223 which are uniformly and spacedly distributed along the circumferential direction of the rotating wheel 22, and the trigger portions 223 are used for cooperating with the intermittent sensor 21 to trigger the intermittent sensor. Correspondingly, the extrusion detection module 3 comprises an extrusion sensor 31 and a movable assembly, wherein the movable assembly is movably arranged in the main body 1 and used for adjusting the distance between the movable assembly and the extrusion sensor 31, so that the movable assembly triggers the extrusion sensor 31.

[0053] When the consumable is located outside the first consumable channel 11, one end of the movable assembly is in the first consumable channel 11, at this time, the movable assembly does not trigger the extrusion sensor 31, and when the consumable is located in the first consumable channel 11, the consumable can drive the movable assembly to move, so that the movable assembly triggers the extrusion sensor 31. It can be understood that the extrusion detection module 3 can detect whether the consumable is arranged in the first consumable channel 11, and further determine whether the material shortage occurs.

[0054] Correspondingly, when the consumable moves in the first consumable channel, the consumable drives the rotating wheel 22 to rotate, and then the plurality of trigger portions 223 trigger the intermittent sensor 21 in sequence and at intervals, so that the detection of whether the consumable moves is realized, and whether the material blockage occurs is determined.

[0055] In the embodiment, through the cooperation of the main body 1 and the first detection unit, the detection device can effectively detect the consumable supply condition of the 3D printer, compared with the prior art, the function of the detection device is effectively improved, and whether the consumable is missing, whether the consumable moves (material shortage, material breakage and material blockage) and other problems can be found in time, so as to provide guarantee for the stable operation of the 3D printer.

[0056] In one embodiment, referring to the description and the drawings Figure 6The embodiment further illustrates the intermittent sensor 21 and the extrusion sensor 31. The intermittent sensor 21 and the extrusion sensor 31 are both provided with the sensing part 5, and the sensing part 5 comprises the emitting end 51 and the receiving end 52, and the receiving end 52 is matched with the emitting end 51.

[0057] Generally, the emitting end 51 is used for emitting infrared rays to the receiving end 52, and the receiving end 52 is correspondingly arranged with the emitting end 51 and can receive the infrared rays emitted by the emitting end 51. When one end of the movable assembly is inserted into the first consumable channel 11, the other end of the movable assembly is located outside the sensing part 5 and does not affect the receiving end 52 to receive the infrared rays. When the one end of the movable assembly is moved out of the first consumable channel 11 and the other end is located between the emitting end 51 and the receiving end 52, the other end of the movable assembly shields the receiving end 52, so that the movable assembly triggers the extrusion sensor 31. Correspondingly, when the triggering part 223 is located between the emitting end 51 and the receiving end 52, the triggering part 223 shields the receiving end 52, so that the triggering part 223 triggers the intermittent sensor 21. In addition, it should be pointed out that the plurality of triggering parts 223 are uniformly distributed on the rotating wheel 22 along the circumferential direction of the rotating wheel 22, so that when the consumable moves in the first consumable channel 11 to drive the rotating wheel 22 to rotate, the plurality of triggering parts 223 pass through the sensing part 5 in sequence, so that the plurality of triggering parts 223 trigger the intermittent sensor 21 at intervals.

[0058] In one embodiment, referring to the drawings Figure 3 and 4 The body 1 is provided with a movable channel, one end of the movable channel is communicated with the first consumable channel 11, and the movable assembly is arranged in the movable channel. The movable channel is arranged vertically to the first consumable channel 11, so that the movable assembly can move back and forth along the direction perpendicular to the first consumable channel 11 to adjust the distance between the movable assembly and the extrusion sensor 31.

[0059] In addition, the first consumable channel 11 is provided with a gap corresponding to the rotating wheel 22. When the consumable moves in the first consumable channel 11, the consumable contacts the rotating wheel 22 through the gap, so that the movement of the consumable can drive the rotating wheel 22 to rotate.

[0060] Further, the outer side wall of the body 1 is provided with an opening, and the opening is communicated with the movable channel, so that one end of the movable assembly away from the first consumable channel 11 can be extended out of the movable channel through the opening. Correspondingly, the extrusion sensor 31 is arranged on the body 1 and corresponds to the opening, that is, the sensing part 5 of the extrusion sensor 31 corresponds to the opening, so that one end of the movable assembly can be inserted into the sensing part 5 through the opening.

[0061] Further, the movable assembly comprises a movable rod and a first elastic member 33, wherein the movable rod is matched with the opening, so that the movable rod can extend out of the movable channel through the opening. A protrusion 322 is arranged on the outer circumferential side of the movable rod, and the first elastic member 33 is sleeved on the outer side of the movable rod, and one end of the first elastic member 33 abuts against the protrusion 322, and the other end of the first elastic member 33 abuts against the inner wall of the end of the movable channel away from the first consumable channel 11.

[0062] It can be understood that when the consumable is located outside the first consumable channel 11, one end of the movable rod is located in the first consumable channel 11, when the consumable is arranged in the first consumable channel 11, and the end of the movable rod located in the first consumable channel 11 is pressed by the consumable, the first elastic member 33 is compressed, so that the movable rod moves and triggers the sensing part 5, when the consumable is used up, i.e. there is no consumable in the first consumable channel 11, the movable rod moves under the action of the restoring force of the first elastic member 33, so that one end of the movable rod is located in the first consumable channel 11, so that the other end of the movable rod is away from the sensing part 5, and the pressing sensor 31 is not triggered.

[0063] In addition, in order to ensure the pressing effect of the consumable on the movable rod, the movable rod comprises a movable rod body 321 and a ball 323, and the protrusion 322 is arranged on the outer circumferential side of the movable rod body 321, and the first elastic member 33 is sleeved on the outer side of the movable rod body 321. Part of the ball 323 is located in the first consumable channel 11, and the ball 323 can be fixedly installed at the end of the movable rod body 321 close to the first consumable channel 11, or can be rotatably arranged at the end of the movable rod body 321 close to the first consumable channel 11, so as to facilitate the consumable to smoothly press through the part of the first consumable channel 11 corresponding to the ball 323.

[0064] In one embodiment, referring to the description and the drawings Figures 5 to 6 , this embodiment provides a specific structure of the rotating wheel 22. Wherein, the rotating wheel 22 comprises a rotating wheel body 221 and a roller 222, the roller 222 is coaxially arranged with the rotating wheel body 221, and a protrusion forming a triggering part 223 is arranged on the roller 222, and the protrusion is arranged as a plurality of protrusions, and the plurality of protrusions are uniformly and spacedly distributed along the circumference of the roller 222. The rotating wheel body 221 is arranged corresponding to the notch, and when the consumable is outside the first consumable channel 11, the side of the rotating wheel body 221 close to the notch is located in the first consumable channel 11, so that when the consumable moves in the first consumable channel 11, the rotating wheel body 221 can be driven to rotate, so as to drive the roller 222 to synchronously rotate, and then make the triggering part 223 to trigger the sensing part 5 at intervals.

[0065] As preferred, the rotating wheel body 221 is provided with a rotating wheel groove arranged along the circumference of the rotating wheel body 221, which is matched with the consumable, so that the consumable can be stably moved relative to the rotating wheel 22. In addition, the rotating wheel body 221 is provided with a plurality of inner grooves arranged along the circumference of the rotating wheel body 221, which can improve the friction between the rotating wheel body 221 and the consumable, so as to ensure that the rotating wheel 22 can be rotated by the consumable. See the accompanying drawings Figure 3 and 4 The extrusion detection module 3 is arranged close to the first discharge port 13, and the sensing part 5 of the intermittent sensor 21 is arranged above the roller 222.

[0066] In one embodiment, see the accompanying drawings Figure 1 and 2 This embodiment further illustrates a detection device for a 3D printer. The main body 1 is further provided with an elastic recovery assembly 4, which includes a swing rod 41 and a second elastic member 42. The swing rod 41 has a first end 411 and a second end 412 arranged correspondingly. The rotating wheel 22 is rotatably arranged on the first end 411 through a first rotating shaft 43, and the rotating wheel 22 is arranged above the first consumable channel 11. The second end 412 is rotatably arranged on the main body 1 through a second rotating shaft 44, so that the first end 411 and the rotating wheel 22 can rotate up and down through the second rotating shaft 44, thereby adjusting the distance between the rotating wheel 22 and the first consumable channel 11. Correspondingly, the two ends of the second elastic member 42 are respectively fixed on the first end 411 and the main body 1.

[0067] The connecting point of the second elastic member 42 and the main body 1 is located below the first consumable channel 11. When the consumable moves in the first consumable channel 11, the consumable moves below the rotating wheel body 221, which exerts an upward extrusion on the rotating wheel body 221, so that the swing rod 41 rotates, i.e. the first end 411 rotates upward, so that the second elastic member 42 is in a stretched state, so that the rotating wheel body 221 fully acts on the consumable under the recovery force of the second elastic member 42, thereby smoothly driving the rotating wheel 22 to rotate, and ensuring that the trigger part 223 can smoothly trigger the sensing part 5. In addition, in actual production application, the first elastic member 33 is arranged as a spring, and the second elastic member 42 is arranged as a tension spring.

[0068] The working principle is that if the extrusion sensor 31 is triggered, it means that the first consumable channel 11 is provided with consumables at this time, if the extrusion sensor 31 is not triggered, it means that the first consumable channel 11 is not provided with consumables at this time, indicating that the consumables are missing, that is, the material is broken or the material is missing. If the consumables move smoothly in the first consumable channel 11, the intermittent sensor 21 is triggered at intervals at this time, and when the extrusion sensor 31 is triggered and the intermittent sensor 21 is not triggered at intervals, it means that the consumables do not move smoothly in the first consumable channel 11, and the material is blocked.

[0069] Therefore, the detection device for the 3D printer provided in the embodiment can significantly enrich the functions of the detection device, ensure the stability and reliability of the 3D work, and has the characteristics of compact structure and small space occupation.

[0070] In one embodiment, referring to the drawings attached in the specification Figure 1 and Figure 7 , the embodiment further illustrates a detection device for a 3D printer. The detection device further comprises a second detection unit arranged on the main body and located below the first detection unit. Correspondingly, the main body 1 is also provided with a second consumable channel 14, and the main body 1 is also provided with a second feeding port 15 and a second discharging port 16 which are in communication with the second consumable channel 14, so that the consumables can be discharged from the second discharging port 16 through the second consumable channel 14 through the second feeding port 15. In addition, the second detection unit further comprises an intermittent detection module 2 and an extrusion detection module 3, so that the second detection unit also plays a role in detecting the consumables.

[0071] In this embodiment, by arranging the first detection unit and the second detection unit on the main body 1, the detection of two consumables can be realized at the same time, meeting the demand of the 3D printer for consumables.

[0072] In one embodiment, referring to the drawings attached in the specification Figure 7 , the embodiment provides a 3D printer, which comprises the detection device for the 3D printer described in any of the above embodiments, and further comprises a host 6, a material tank 7 and a nozzle 61. The detection device for the 3D printer is arranged on the host 6, and the nozzle 61 is arranged on the host 6. The nozzle 61 is in communication with the first discharging port 13 through a discharging pipe. Correspondingly, the material tank 7 is in communication with the first feeding port 12 through a feeding pipe, so that the consumables in the material tank 7 can enter the detection device through the feeding pipe, and be discharged through the discharging pipe and the nozzle 61 for printing.

[0073] In addition, it should be pointed out that when the second detection unit is arranged on the main body 1, the host 6 at this time includes two spray heads 61, and the two spray heads 61 are connected with the first discharge port 13 and the second discharge port 16 through discharge pipes respectively, and the material box 7 is connected with the first feeding port 12 and the second feeding port 15 through two feeding pipes respectively.

[0074] In the embodiment, the detection device is connected with the host 6 and the material box 7 respectively, and the detection device can realize the material breakage detection between the detection device and the spray head 61 while detecting whether the consumables move, so as to enrich the detection function of the detection device and fully ensure the stability and reliability of the 3D printer.

[0075] It should be noted that the above embodiments can be freely combined as needed. The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the application, a number of improvements and refinements can be made, which should be considered as the protection scope of the application.

Claims

1. A detection device for a 3D printer, characterized in that, The utility model relates to a kind of detection device for consumable, including: Main body, first consumable channel for the movement of consumable is arranged in the main body, first feed inlet and first discharge outlet are arranged on the main body and are communicated with the first consumable channel; First detection unit, the first detection unit includes intermittent detection module and extrusion detection module, the intermittent detection module includes intermittent sensor and rotatable wheel arranged in the main body, the rotatable wheel is provided with a plurality of trigger parts distributed uniformly along the circumferential direction of the rotatable wheel, the extrusion detection module includes extrusion sensor and movable assembly movably arranged in the main body; Wherein, when the consumable is located outside the first consumable channel, one end of the movable assembly is located in the first consumable channel, and the movable assembly does not trigger the extrusion sensor, when the consumable is located in the first consumable channel, the consumable is used to drive the movable assembly to move, so that movable assembly triggers the extrusion sensor, when the consumable moves in the first consumable channel, the consumable is used to drive the rotatable wheel to rotate, so that the detection part interval triggers the intermittent sensor.

2. The detection device for a 3D printer according to claim 1, wherein, The main body is provided with an activity channel communicated with the first consumable channel, and the movable assembly is arranged in the activity channel and is adapted to move in the direction perpendicular to the first consumable channel; The first consumable channel is provided with a notch corresponding to the rotatable wheel, and when the consumable moves in the first consumable channel, the consumable contacts the rotatable wheel through the notch to drive the rotatable wheel to rotate.

3. The detection device for a 3D printer according to claim 2, wherein, The outer side wall of the main body is provided with an opening communicated with the activity channel, and the extrusion sensor is arranged on the main body and corresponds to the opening.

4. The detection device for a 3D printer according to claim 3, wherein, The movable assembly includes: Movable rod, the movable rod is matched with the opening, and the outer circumferential side of the movable rod is provided with a protruding part; First elastic member, the first elastic member is sleeved on the outer side of the movable rod, and the two ends of the first elastic member are respectively abutted on the protruding part and the inner wall of one end of the activity channel away from the first consumable channel, so that the movable rod triggers the extrusion sensor through the opening.

5. The detection device for a 3D printer according to claim 4, wherein, The movable rod includes movable rod body and ball, the protruding part is arranged on the outer circumferential side of the movable rod body, and the ball is arranged on one end of the movable rod body close to the first consumable channel.

6. The detection device for a 3D printer according to claim 2, wherein, The rotatable wheel includes rotatable wheel body and roller coaxially arranged with the rotatable wheel body, and a plurality of protrusions are arranged on the roller and uniformly distributed along the circumferential direction of the roller to form the trigger part; The rotatable wheel body corresponds to the notch, and when the consumable is located outside the first consumable channel, one side of the rotatable wheel body close to the notch is located in the first consumable channel.

7. The detection device for a 3D printer according to claim 6, wherein, The main body is also provided with elastic recovery assembly, and the elastic recovery assembly includes: A swing lever having a first end and a second end arranged correspondingly, the rotating wheel is rotatably arranged on the first end and above the first consumable channel, and the second end is rotatably arranged on the main body to adjust the distance between the rotating wheel and the first consumable channel; A second elastic member, two ends of the second elastic member are respectively fixed on the first end and the main body; When the consumable moves in the first consumable channel, the consumable is used to press the rotating wheel body, so that the rotating wheel moves away from the first consumable channel.

8. The detection device for a 3D printer according to any one of claims 1-7, characterized in that, The intermittent sensor and the extrusion sensor are both provided with a sensing part, the sensing part includes a transmitting end and a receiving end matched with the transmitting end; When the movable component is located between the transmitting end and the receiving end, the movable component triggers the extrusion sensor, and when the triggering part is located between the transmitting end and the receiving end, the triggering part triggers the intermittent sensor.

9. The detection device for a 3D printer according to claim 8, wherein, Further comprising a second detection unit, the main body is further provided with a second consumable channel for the movement of the consumable, the main body is provided with a second inlet and a second outlet communicated with the second consumable channel, and the second detection unit includes the intermittent detection module and the extrusion detection module.

10. A 3D printer characterized by, The detection device for the 3D printer includes any one of the above claims 1-9, further comprising: A host computer, the detection device for the 3D printer is arranged on the host computer; A tank, the tank is communicated with the first inlet through a feeding pipe, and is used to provide the consumable; A nozzle, the nozzle is communicated with the first outlet through a discharging pipe.

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