CN215849699U - 3D printer consumptive material feed speed detection device and 3D printer - Google Patents
3D printer consumptive material feed speed detection device and 3D printer Download PDFInfo
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- CN215849699U CN215849699U CN202120495794.9U CN202120495794U CN215849699U CN 215849699 U CN215849699 U CN 215849699U CN 202120495794 U CN202120495794 U CN 202120495794U CN 215849699 U CN215849699 U CN 215849699U
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Abstract
The utility model relates to a 3D printer consumable feeding speed detection device and a 3D printer, wherein the device comprises: a drive member; the rotating piece is sleeved on the driving piece; a gap for the consumables to pass through is arranged between the extrusion bearing and the rotating part; the magnetic part is arranged on the side surface of the extrusion bearing; the detection piece is connected with the magnetism spare electricity, and when rotating the piece and rotating, the tangent line motion is done at the edge of extruding the bearing to the consumptive material, drives simultaneously and extrudes the magnetism spare rotation on the bearing, and the detection piece is used for surveying the pulse signal of magnetism spare and calculates the feed rate of consumptive material. The above-mentioned scheme that this application provided, through set up the magnetic part on extruding the bearing, when rotating the piece and rotate, the tangent line motion is done at the edge of extruding the bearing to the consumptive material, drives the magnetic part rotation of extruding on the bearing simultaneously, and the pulse signal that the magnetic part just can be surveyed to the detection piece calculates the input speed of consumptive material to just can in time discover the feeding and whether appear unusually.
Description
Technical Field
The utility model relates to the technical field of 3D printers, in particular to a device for detecting the feeding speed of consumables of a 3D printer and the 3D printer.
Background
Under the promotion of the intellectualization of computer digital technology, the application field of 3D printing technology is becoming wider and wider, and especially the Fused Deposition Modeling (FDM) hot melting technology is becoming more popular to enthusiasts. The FDM forming technology is to heat the solid low-melting-point filamentous material to a semi-molten state, and the printing head performs spinning to form a surface, namely a layer obtained by dividing the model slice by upper computer software, and then the layer is stacked and formed layer by layer.
At present, when the FDM hot-melt 3D printer is used, because a nozzle of the 3D printer is precise, the common diameter is 0.4mm, when consumables contain impurities or the temperature is set improperly, the nozzle is easy to be blocked, and at the moment, the machine still runs normally, consumables cannot be extruded normally, so that a printing model fails; meanwhile, the common consumables are PLA, ABS, nylon and the like, the diameter of the consumables is usually 1.75mm, and the consumables are extruded by meshing two gears. When two gear interlock dynamics were too big, the consumptive material of wearing and tearing easily caused to extrude and skidded, leads to the card material, and then appears end cap, card material, consumptive material condition of expecting absolutely easily, but 3D printer on the present market mostly does not have the function that consumptive material feed speed detected.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a 3D printer consumptive material feed speed detection device and 3D printer to the problem that current 3D printer lacks consumptive material feed speed and detects.
The utility model provides a 3D printer consumable feeding speed detection device, which comprises:
a drive member;
the rotating piece is sleeved on the driving piece;
the extrusion bearing is installed on the 3D printer body, and a gap for the consumables to pass through is formed between the extrusion bearing and the rotating piece;
the magnetic part is arranged on the side surface of the extrusion bearing;
the detection piece, the detection piece with the magnetic part electricity is connected, works as when rotating the piece and rotating, the consumptive material is in the tangential motion is done to the edge of extruding the bearing, drives simultaneously extrude the magnetic part rotation on the bearing, the detection piece is used for surveying the pulse signal of magnetic part and calculates the feed rate of consumptive material.
In one embodiment, the detection part comprises a hall sensor, one end of the hall sensor is electrically connected with the magnetic part, when the extrusion bearing drives the magnetic part to rotate, the magnetic field intensity around the magnetic part changes, and the changed magnetic field generates changed hall voltage on the hall sensor.
In one embodiment, the device further comprises an MCU (micro control unit) processor, the other end of the Hall sensor is electrically connected with the MCU processor, the MCU processor is connected with a 3D printer main control board on the 3D printer body, the Hall sensor calculates the feeding speed according to the changed Hall voltage, and sends the feeding speed to the MCU processor.
In one embodiment, the device further comprises a first alarm unit, and the first alarm unit is electrically connected with the MCU processor.
In one embodiment, the first alarm unit comprises a malfunction alarm lamp.
In one embodiment, the MCU processing system further comprises a power supply unit which is electrically connected with the MCU processor.
In one embodiment, the consumable supply device further comprises a display, wherein the display is electrically connected with the MCU processor and used for displaying the residual quantity of the consumable.
In one embodiment, the system further comprises a second alarm unit, the second alarm unit is electrically connected with the MCU, and when the display displays that the consumable allowance is lower than a preset value, the MCU controls the second alarm unit to alarm.
In one embodiment, the driving member includes a stepping motor, and the rotating member is sleeved on an output shaft of the stepping motor.
The utility model further provides a 3D printer, which comprises the 3D printer consumable feeding speed detection device according to any one of the descriptions in the embodiment of the application, and the 3D printer consumable feeding speed detection device is installed on a 3D printer body.
The beneficial effects of the utility model include:
according to the utility model, the magnetic part is arranged on the extrusion bearing, when the rotating part rotates, the consumable does tangential motion on the edge of the extrusion bearing, the magnetic part on the extrusion bearing is driven to rotate, the forward turns of the rotation of the extrusion bearing are accumulated through the Hall sensor, the feeding distance of the consumable is calculated, the total length of the consumable is compared with the total length of the consumable, the used length is reduced, the residual allowance of the consumable is judged, and the consumable allowance display function is achieved.
Drawings
FIG. 1 is a schematic diagram illustrating an apparatus for detecting a feeding speed of consumables of a 3D printer according to an embodiment of the utility model;
fig. 2 is a schematic diagram of the system of fig. 1.
The figures are labeled as follows:
01. consumable materials; 10. a stepping motor; 101. an output shaft; 20. extruding a gear; 30. extruding a bearing; 40. a magnetic member; 50. and a Hall sensor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "horizontal", "inner", "axial", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "horizontal," "upper," "lower," and the like are for illustrative purposes only and do not represent the only embodiments.
As shown in fig. 1, in an embodiment of the present invention, a device for detecting a feeding speed of a consumable of a 3D printer is provided, including: the driving piece, the rotation piece, extrude bearing 30, magnetic part 40 and detection piece, wherein, it establishes on the driving piece to rotate the piece cover, it installs on 3D printer body to extrude bearing 30, it is equipped with the clearance that is used for consumptive material 01 to pass to extrude between bearing 30 and the rotation piece, magnetic part 40 sets up the side of extruding bearing 30, detection piece is connected with magnetic part 40 electricity, when rotating the piece and rotating, the tangent line motion is done at the edge of extruding bearing 30 to the consumptive material, the magnetic part 40 rotation on the bearing 30 is extruded in the drive simultaneously, the detection piece is used for surveying the pulse signal of magnetic part 40 and calculates the input speed of consumptive material.
Adopt above-mentioned technical scheme, through setting up the magnetic part on extruding the bearing, when rotating the piece and rotating, the tangent line motion is being done at the edge of extruding the bearing to the consumptive material, drives simultaneously and extrudes the magnetic part rotation on the bearing, and the pulse signal that the magnetic part just can be surveyed to the detection piece calculates the feed rate of consumptive material to just can in time discover whether the feeding appears unusually.
In some embodiments, as shown in fig. 1 and described in conjunction with fig. 2, the printer further includes an MCU processor, the detecting element includes a hall sensor 50, one end of the hall sensor 50 is electrically connected to the magnetic element 40, the other end of the hall sensor is electrically connected to the MCU processor, and the MCU processor is connected to the 3D printer main control board on the 3D printer body.
Specifically, as shown in fig. 2, the output end of the MCU processor is electrically connected to the input end of the hall sensor 50 through the voltage control unit, the output end of the hall sensor 50 is electrically connected to the input end of the MCU processor through the signal amplification unit, and meanwhile, the output end of the MCU processor is also electrically connected to the main control board of the 3D printer on the 3D printer body through the signal output unit.
When the detection device starts to work, the MCU processor generates a signal to the voltage control unit, the power supply unit starts to provide power for the Hall sensor, when the rotating piece rotates, the consumable material does tangential motion on the edge of the extrusion bearing 30 and drives the magnetic piece 40 at the bottom of the extrusion bearing 30 to rotate, and the radius of the extrusion bearing 30 is r;
the Hall sensor 50 generates a certain Hall voltage U by electron deflection under the action of Lorentz force in a magnetic fieldHWhen the magnetic member 40 rotates, the magnetic field intensity around the magnetic member changes, and the changed magnetic field generates a changed hall voltage Δ U on the hall sensor 50H. The extrusion bearing 30 rotates one circle, namely the magnetic member 40 is driven to rotate one circle, and the Hall voltage delta UHCompleting the change of one period T;
variable Hall voltage Δ UHAfter the signal amplification unit is linearly amplified, the signal is transmitted to the MCU processor, and the MCU processor can calculate the angular velocity of the extrusion bearing 30 to be ω according to the variation of the hall voltage in a period T, so that the feeding speed V of the consumable 01 is ω r (ω is the angular velocity of the extrusion bearing and r is the radius of the extrusion bearing).
In some embodiments, the device for detecting the feeding speed of consumables of a 3D printer further comprises a first alarm unit electrically connected with the MCU processor.
Specifically, as shown in fig. 2, the first alarm unit includes a failure alarm lamp, when the MCU processor compares the feeding speed V of the consumable 01 with a preset value, if V is not within the normal threshold range (the forward extrusion speed is 10-30mm/s, and the reverse retraction speed is 50-80mm/s), it is determined that a nozzle plug or a worn consumable material jamming failure occurs, at this time, the MCU processor controls the failure alarm lamp to display a failure state, and simultaneously, the MCU processor outputs a state abnormal signal to the 3D printer main control board through the signal output unit, the 3D printer main control board controls the machine to pause printing, and after the user releases the failure, the printing can be continued.
It should be noted that the first alarm unit in the embodiment of the present application includes a malfunction alarm lamp by way of example only, and in other alternative solutions, other structures may be adopted, for example, the first alarm unit is a vibration alarm. The present application does not specifically limit the kind of the first alarm unit as long as the above-described structure can achieve the object of the present application.
In some embodiments, in order to conveniently supply power to the MCU processor, as shown in fig. 2, the 3D printer consumable feeding speed detection apparatus further includes a power supply unit electrically connected to the MCU processor.
In some embodiments, in order to conveniently display the consumable balance, the 3D printer consumable feeding speed detection device in this application further includes a display electrically connected with the MCU processor for displaying the consumable balance.
Specifically, the user presets the total length L of the consumable material (the material specification is 300M or 600M) at the beginning of printing. During printing, the MCU processor is at Hall voltage DeltaUHWhen the change of one period T is completed, namely the extrusion bearing rotates forwards for one circle, n is counted. Can judge that the consumptive material has used length as S2 n pi r, the surplus subtracts used length S for total length L, and at this moment, the MCU treater sends the consumptive material surplus for the display to reach the function that real-time consumptive material surplus shows.
Further, in order to conveniently remind the user when the consumptive material surplus is less than the default, 3D printer consumptive material feed speed detection device in this application still includes second alarm unit, and this second alarm unit is connected with MCU treater electricity, and when the display shows that the consumptive material surplus is less than the default, MCU treater control second alarm unit reports to the police.
In some embodiments, as shown in fig. 1, the driving member in the present application includes a stepping motor 10, and the rotating member is disposed on an output shaft 101 of the stepping motor 10.
In some embodiments, as shown in fig. 1, the rotating member in the present application includes an extrusion gear 20, and the extrusion gear 20 is sleeved on the output shaft 101.
The utility model further provides a 3D printer, which comprises the 3D printer consumable feeding speed detection device according to any one of the descriptions in the embodiment of the application, and the 3D printer consumable feeding speed detection device is installed on a 3D printer body.
In summary, the present invention, when in use:
as shown in fig. 1 and fig. 2, when the detection device starts to work, the MCU generates a signal to the voltage control unit, and the power supply unit starts to provide power to the hall sensor, when the rotating member rotates, the consumable moves tangentially at the edge of the extrusion bearing 30, and drives the magnetic member 40 at the bottom of the extrusion bearing 30 to rotate, where the radius of the extrusion bearing 30 is r;
the Hall sensor 50 generates a certain Hall voltage U by electron deflection under the action of Lorentz force in a magnetic fieldHWhen the magnetic member 40 rotates, the magnetic field intensity around the magnetic member changes, and the changed magnetic field generates a changed hall voltage Δ U on the hall sensor 50H. The extrusion bearing 30 rotates one circle, namely the magnetic member 40 is driven to rotate one circle, and the Hall voltage delta UHCompleting the change of one period T;
variable Hall voltage Δ UHAfter the signal amplification unit is linearly amplified, the signal is transmitted to the MCU processor, the MCU processor can calculate the angular speed of the extrusion bearing 30 to be omega according to the variation of the Hall voltage in a period T, and then the feeding speed V of the consumable 01 is omega r (omega is the rotation of the extrusion bearing)R is the radius of the extrusion bearing);
after the MCU processor compares the feeding speed V of the consumable 01 with a preset value, if the V is not in a normal threshold range (the forward extrusion speed is 10-30mm/s, and the reverse pumping speed is 50-80mm/s), the fault of a nozzle plug or a worn consumable clamping material is judged to occur, at the moment, the MCU processor controls a fault alarm lamp to display a fault state, meanwhile, the MCU processor outputs a state abnormal signal to a 3D printer main control board through a signal output unit, the 3D printer main control board controls a machine to pause printing, and the printing can be continued after a user releases the fault.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a 3D printer consumptive material feed speed detection device which characterized in that includes:
a drive member;
the rotating piece is sleeved on the driving piece;
the extrusion bearing (30) is installed on the 3D printer body, and a gap for the consumables to pass through is formed between the extrusion bearing (30) and the rotating piece;
a magnetic member (40), the magnetic member (40) being disposed on a side of the extrusion bearing (30);
the detection piece, the detection piece with magnetic part (40) electricity is connected, works as when rotating the piece and rotating, the consumptive material is in the tangential motion is done to the edge of extruding bearing (30), drives simultaneously magnetic part (40) on extruding bearing (30) rotate, the detection piece is used for surveying the pulse signal of magnetic part (40) and calculate the feed rate of consumptive material.
2. The device for detecting the feeding speed of consumable materials of the 3D printer according to claim 1, wherein the detecting member comprises a Hall sensor (50), one end of the Hall sensor (50) is electrically connected with the magnetic member (40), when the extruding bearing (30) drives the magnetic member (40) to rotate, the magnetic field intensity around the magnetic member (40) changes, and the changed magnetic field generates a changed Hall voltage on the Hall sensor (50).
3. The 3D printer consumable feeding speed detection device according to claim 2, further comprising an MCU processor, wherein the other end of the Hall sensor (50) is electrically connected with the MCU processor, the MCU processor is connected with a 3D printer main control board on the 3D printer body, and the Hall sensor (50) calculates a feeding speed according to a changed Hall voltage and sends the feeding speed to the MCU processor.
4. The device for detecting the feeding speed of consumables of a 3D printer according to claim 3, further comprising a first alarm unit electrically connected to the MCU processor.
5. The 3D printer consumable feeding speed detection device according to claim 4, wherein the first alarm unit comprises a malfunction alarm lamp.
6. The 3D printer consumable feeding speed detection device according to claim 3, further comprising a power supply unit electrically connected with the MCU processor.
7. The 3D printer consumable feeding speed detection device according to claim 3, further comprising a display electrically connected with the MCU processor for displaying the remaining amount of consumables.
8. The device for detecting the feeding speed of consumables of a 3D printer according to claim 7, further comprising a second alarm unit electrically connected to the MCU processor, wherein when the display shows that the remaining amount of consumables is lower than a preset value, the MCU processor controls the second alarm unit to alarm.
9. The device for detecting the feeding speed of consumable materials of a 3D printer according to claim 1, wherein the driving member comprises a stepping motor (10), and the rotating member is sleeved on an output shaft (101) of the stepping motor (10).
10. A3D printer is characterized by comprising the 3D printer consumable feeding speed detection device as claimed in any one of claims 1-9, wherein the 3D printer consumable feeding speed detection device is installed on a 3D printer body.
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| CN202120495794.9U CN215849699U (en) | 2021-03-09 | 2021-03-09 | 3D printer consumptive material feed speed detection device and 3D printer |
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| CN202120495794.9U CN215849699U (en) | 2021-03-09 | 2021-03-09 | 3D printer consumptive material feed speed detection device and 3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116560600A (en) * | 2023-07-11 | 2023-08-08 | 深圳市智能派科技有限公司 | Processing method and system for accidental interruption in 3D printing process |
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2021
- 2021-03-09 CN CN202120495794.9U patent/CN215849699U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116560600A (en) * | 2023-07-11 | 2023-08-08 | 深圳市智能派科技有限公司 | Processing method and system for accidental interruption in 3D printing process |
| CN116560600B (en) * | 2023-07-11 | 2024-01-26 | 深圳市智能派科技有限公司 | Processing method and system for accidental interruption in 3D printing process |
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