CN113232302B - Spray head blockage detection processing system and method of 3D printer - Google Patents

Spray head blockage detection processing system and method of 3D printer Download PDF

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Publication number
CN113232302B
CN113232302B CN202110551290.9A CN202110551290A CN113232302B CN 113232302 B CN113232302 B CN 113232302B CN 202110551290 A CN202110551290 A CN 202110551290A CN 113232302 B CN113232302 B CN 113232302B
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working state
state value
module
instant
wire feeding
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CN113232302A (en
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周述军
黄啸
郭科
邵萌
王建平
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Zhejiang Jiaxing Zhidie Intelligent Technology Co ltd
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Zhejiang Jiaxing Zhidie Intelligent Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The spray head blockage detection processing system of the 3D printer comprises an initial value setting module, a working state value detection module, a comparison module, an instant position recording module, a reset driving module and a homing driving module. The initial value setting module is used for recording a rated working state value of the wire feeding motor and an initial printing position of the wire feeding motor. The working state value detection module is used for detecting an instant working state value when the wire feeding motor drives the spray head to work. The comparison module is used for comparing the instant working state value with the rated working state value in time. The immediate position recording module is only used for recording the immediate printing position of the wire feeding motor when the immediate working state value is larger than the rated working state value. The spray head blockage detection processing system can avoid the damage of printed products caused by the blockage of the spray head. The invention also provides a detection processing method.

Description

Spray head blockage detection processing system and method of 3D printer
Technical Field
The invention relates to the technical field of 3D printing equipment, in particular to a system and a method for detecting and processing blockage of a spray head of a 3D printer.
Background
The 3D printing technique refers to a technique of generating a three-dimensional entity by superimposing successive physical layers and adding a bondable material such as powdered metal or plastic layer by layer, and is different from a conventional material-removing processing technique, and is therefore also called additive manufacturing or laminate manufacturing. 3D printing technology covers "rapid prototyping" of the front end of the product lifecycle, as well as all printing processes, technologies, equipment classes and applications associated with "rapid manufacturing" of a full production cycle. 3D printing has a high technical content, and integrates the advanced technical knowledge of a plurality of aspects such as digital modeling technology, information technology, electromechanical control technology, material science and chemistry. 3D printing technology has found wide application in the fields of automotive, aerospace, dental and medical industries, oil exploration, guns, construction, civil engineering, jewelry design, footwear design, and the like. With the development of 3D printing technology, two or more nozzles may be installed on a printer. When the nozzle is used for printing a product, namely the nozzle is used for ejecting the printing wire, the phenomenon of blockage can occur.
The technical scheme disclosed in patent application No. 201811449556.3, entitled 3D printer nozzle blockage detection device and detection method of fused deposition type, includes generating correlation signals with preset time intervals by a first photoelectric correlation sensor and a second photoelectric correlation sensor, and sending the correlation signals to a 3D printer; if the extruder normally extrudes, the extruder is not blocked, the fan blades can continuously rotate, the photoelectric correlation sensor can repeatedly generate correlation signals with preset time intervals and send the correlation signals to the 3D printer, and the 3D printer normally prints; if the shower nozzle blocks up, the extruder can't extrude 3D printing consumables, and 3D printing consumables can't remove, also can't drive the worm simultaneously and rotate, and flabellum stall at this moment, photoelectric correlation sensor then last received signal or last no signal, through predetermineeing long back, if photoelectric correlation sensor lasts received signal or last no signal reception, reports to the police and pauses the 3D printer, realizes detecting the function that the shower nozzle blockked up. The detection device and the detection method have low precision, are not suitable for most 3D printers, and sometimes damage printed products due to the fact that the spray head is blocked.
Disclosure of Invention
In view of the above, the present invention provides a system and a method for detecting and processing nozzle clogging of a 3D printer, which can timely and accurately detect a clogging condition of the 3D printer, so as to solve the above technical problems.
The shower nozzle of 3D printer blocks up detection processing system, the 3D printer includes a shower nozzle, one penetrates the printing silk of shower nozzle, and a drive print the silk motion send a motor. The spray head blockage detection processing system of the 3D printer comprises an initial value setting module, a working state value detection module, a comparison module, an instant position recording module, a reset driving module and a homing driving module. The initial value setting module is used for recording a rated working state value of the wire feeding motor and an initial printing position of the wire feeding motor. The working state value detection module is used for detecting an instant working state value when the wire feeding motor drives the spray head to work. The comparison module is used for comparing the instant working state value with the rated working state value in time. The immediate position recording module is only used for recording the immediate printing position of the wire feeding motor when the immediate working state value is larger than the rated working state value. And the homing driving module is used for stopping the wire feeding motor from feeding wires and returning to an initial printing position to overhaul the spray head when the instant working state value is larger than the rated working state value. The reset driving module is used for driving the wire feeding motor to reset to the instant printing position when the wire feeding motor is started again and the working state value of the wire feeding motor detected by the working state value detection module is less than or equal to the set rated working state value.
Further, the rated working state value is a rated working current value or a rated working voltage value.
Further, the working state value of the wire feeding motor detected by the working state value detection module corresponds to the set rated working state value.
Further, the rated working state value is an interval value, and when the instant working state value is larger than the maximum value of the rated working state value, the instant position recording module and the homing driving module start to work.
Further, the system for detecting and processing the blockage of the spray head of the 3D printer further comprises an alarm module, and when the instant working state value is larger than the rated working state value, the alarm module sends warning information.
Furthermore, the system for detecting and processing the blockage of the spray head of the 3D printer further comprises a central processing unit, wherein the central processing unit is electrically connected with the initial value setting module, the working state value detecting module, the comparing module and the homing driving module respectively so as to process data from the initial value setting module, the working state value detecting module and the comparing module and output a control signal for controlling the homing driving module to work.
Further, the central processing unit is one of a PLC, a microprocessor, and a central processing unit.
A3D printer nozzle blockage detection processing method comprises a nozzle, a printing wire penetrating through the nozzle, and a wire feeding motor driving the printing wire to move, and comprises the following steps:
providing an initial value setting module, wherein the initial value setting module is used for recording a rated working state value of the wire feeding motor and an initial printing position of the wire feeding motor;
providing a working state value detection module, wherein the working state value detection module is used for detecting an instant working state value when the wire feeding motor drives the spray head to work;
providing a comparison module, wherein the comparison module is used for timely comparing the instant working state value with a rated working state value;
providing an instant position recording module, wherein the instant position recording module is only used for recording the instant printing position of the wire feeding motor when the instant working state value is larger than the rated working state value;
providing a homing driving module, wherein the homing driving module is used for stopping the wire feeding motor from feeding wires and returning to an initial printing position to repair the spray head when the instant working state value is larger than the rated working state value: and
and providing a reset driving module, wherein the reset driving module is used for driving the wire feeding motor to reset to the instant printing position recorded by the instant position recording module when the working state value of the wire feeding motor detected by the working state value detection module is less than or equal to the set rated working state value.
Further, the rated working state value is an interval value, and when the instant working state value is larger than the maximum value of the rated working state value, the instant position recording module and the homing driving module start to work.
Further, when the immediate working state value is between the interval values, the reset driving module drives the wire feeding motor to reset to the immediate printing position recorded by the immediate position recording module.
Compared with the prior art, the spray head blockage detection processing system and the detection processing method of the 3D printer provided by the invention have the working state value detection module, the comparison module, the instant position recording module, the homing drive module and the reset drive module, the working state value of the wire feeding motor is timely detected by the working state value detection module, when the working state value detected by the working state value detection module is larger than the set rated working state value, the instant position recording module records the position of the spray head, the homing drive module returns the spray head to the initial printing position, and then the spray head is overhauled by a user to avoid damaging the printed 3D product when the spray head is overhauled. And when the wire feeding motor is restarted after the nozzle is detected and modified and the detected working state value is less than or equal to the rated working state value, the reset driving module drives the nozzle to return to the immediate printing position to restart printing. Because when the shower nozzle is blocked and can not output the printing material, the operating condition of sending a motor must have the change, for example electric current or voltage grow etc. operating condition value detection module can detect this moment, and its accuracy is in time to can avoid leading to the damage of the product printed because the shower nozzle blocks up.
Drawings
Fig. 1 is a schematic block diagram of a system for detecting and processing clogging of a nozzle of a 3D printer according to the present invention.
Fig. 2 is a flowchart of a method for detecting and processing nozzle clogging of a 3D printer according to the present invention.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to 2, the schematic block diagram of the system for detecting and processing nozzle clogging of a 3D printer provided by the present invention is shown. The spray head blockage detection processing system of the 3D printer is used in the 3D printer. As is well known to those skilled in the art, the 3D printer includes a nozzle 10, a printing wire 12 penetrating the nozzle 10, and a wire feeding motor 11 driving the printing wire 12 to move. It will be appreciated that the construction and operation of the spray head 10, the printing wire 12 and the wire feed motor 11 themselves are prior art and will not be described in detail herein. In addition, the wire feed motor 11 is not only used to draw the printing wire 12 to move to feed it into the nozzle 10, but also to drive the nozzle 10 to move along a set path to print out the designed product. The system for detecting and processing the blockage of the spray head of the 3D printer comprises an initial value setting module 20, a working state value detecting module 21, a comparing module 22, an instant position recording module 23, a homing driving module 24 and a resetting driving module 25. It is contemplated that the system for detecting and processing nozzle clogging of a 3D printer may further include other functional modules, such as an actuator, a hardware module, a control module, an electrical connection component, etc., which are well known to those skilled in the art and will not be described in detail herein.
The initial value setting module 20 is used to record the rated operating status value of the wire feed motor 11 and the initial printing position of the wire feed motor 11. The rated operating condition values of the wire feed motor 11 may be rated current, rated voltage, rated output power, and the like. In the present embodiment, the rated operation state value of the wire feeding motor 11 is the rated current of the wire feeding motor 11 during normal operation. The nominal operating condition value may be an interval value, because of the influence of the operating environment of the 3D printer, such as normal fluctuation of the utility power, noise, etc., which may cause the nominal operating condition value of the wire feed motor 11 not to be at a stable value. The initial printing position of the wire feed motor 11 should be the starting position of the printed product, but the material printed by the initial printing position is not part of the printed product. When the printed product is printed, the printed matter should be cut off at the initial printing position.
The working state value detection module 21 is configured to detect an instant working state value when the wire feeding motor 11 drives the spray head 10 to work. The operating condition value of the wire feed motor 11 detected by the operating condition value detection module 21 should correspond to the set nominal operating condition value. When the spray head 10 is outputting printing material normally, the instantaneous operating state value of the wire feed motor 11 should fall within the rated operating state value. When the nozzle 10 is clogged with the printing material, the output power of the wire feed motor 11 will be increased, and the current flowing through the wire feed motor 11 will also be increased. The operating condition value detection module 21 may include an inductive sensor for detecting the instantaneous current value of the wire feed motor 11.
The comparison module 22 is configured to compare the instantaneous operating state value with a rated operating state value in a timely manner. The comparison module 22 may be executed by a processor. The comparison module 22 can compare the relative ratio of the instantaneous operating state value and the rated operating state value. When the instantaneous operating state value is greater than the rated operating state value, the operating state of the wire feeding motor 11 can be determined, and it can be further determined whether the nozzle 10 is blocked. When the rated working state value is an interval value and the instant working state value is greater than the maximum value of the rated working state value, the working state of the wire feeding motor 11 can be judged. Of course, when the instant operating state value is greater than the maximum value of the rated operating state value, the instant position recording module 23 and the homing driving module 24 start to operate.
The immediate position recording module 23 is only used to record the immediate printing position of the wire feed motor 11 when the immediate operating state value is greater than the nominal operating state value. When the instantaneous operating state value is greater than the rated operating state value or greater than the maximum value of the interval-type rated operating state value, it is determined that the nozzle 10 is blocked, and the instantaneous operating state value of the wire feeding motor 11 is increased, which indicates that the 3D printer is in a fault state. The instantaneous position recording module 23 thus records the instantaneous position of the spray head 10, although it is conceivable that the instantaneous position of the spray head 10 should be a three-dimensional coordinate recorded in a computer.
The homing driving module 24 is configured to stop the wire feeding motor 11 from feeding wire and return to the initial printing position to service the spray head 10 when the immediate working state value is greater than the rated working state value. When the nozzle 10 is judged to be blocked, the homing driving module 24 outputs a signal to enable the control module to drive the nozzle 10 to return to the initial printing position for maintenance. Of course, the work of repairing the spray head 10 can be performed manually. After the inspection of the nozzle 10 is manually completed, the 3D printer may be turned on again to restart printing.
The reset driving module 25 is configured to drive the wire feed motor 11 to reset to the immediate printing position when the wire feed motor 11 is turned on again and when the working status value of the wire feed motor 11 detected by the working status value detecting module 21 is less than or equal to the set rated working status value. The reset driving module 25 outputs a control signal when the wire feeding motor 11 is turned on again and when the working status value of the wire feeding motor 11 detected by the working status value detecting module 21 is less than or equal to the set rated working status value, so that the control module drives the nozzle 10 to reset to the immediate printing position recorded by the immediate position recording module 23, and then restarts printing.
In addition, when the nozzle 10 is determined to be blocked, the 3D printer nozzle blockage detection processing system further includes an alarm module 26 for the purpose of reminding a user. When the instant operating state value is greater than the rated operating state value, the alarm module 26 sends an alarm message. The alarm module 26 may include a buzzer. When receiving the warning signal, the buzzer will sound to remind the user.
It is conceivable that the 3D printer head clogging detection processing system further includes a central processing unit 27. The cpu is electrically connected to the initial value setting module 21, the working state value detecting module 22, the comparing module 23, and the reset driving module 24 respectively to process data from the initial value setting module 21, the working state value detecting module 22, and the comparing module 23, and output a control signal for controlling the operation of the reset driving module 24 and the reset driving module 25. The central processing unit 27 is one of a PLC, a microprocessor, and a central processing unit, which are not described herein in detail for the prior art.
The invention also provides a method for detecting and processing the blockage of the spray head of the 3D printer, which comprises the following steps:
STEP 101: providing an initial value setting module 20, wherein the initial value setting module 20 is configured to record a nominal operating status value of the wire feed motor 11 and an initial printing position of the wire feed motor 21;
the STEP 102: providing an operating state value detection module 21, where the operating state value detection module 21 is configured to detect an instant operating state value when the wire feeding motor 11 drives the spray head 10 to operate;
STEP 103: providing a comparison module 22, wherein the comparison module 22 is used for timely comparing the instant operating state value with the rated operating state value;
STEP 104: providing an immediate position recording module 23, said immediate position recording module 23 being only used for recording the immediate printing position of said wire feed motor 11 when said immediate operating condition value is greater than said nominal operating condition value;
STEP 105: providing a homing driving module 24, wherein the homing driving module 24 is configured to stop the wire feeding motor 11 from feeding wire and return to an initial printing position to service the spray head when the immediate working state value is greater than the rated working state value: and
STEP 106: a reset driving module 25 is provided, and the reset driving module 25 is configured to drive the wire feeding motor 11 to reset to the immediate printing position recorded by the immediate position recording module 23 when the working status value of the wire feeding motor 11 detected by the working status value detecting module is less than or equal to the set rated working status value.
Compared with the prior art, the spray head blockage detection processing system and the detection processing method of the 3D printer provided by the invention are provided with the working state value detection module 21, the comparison module 22, the instant position recording module 23, the homing drive module 24 and the reset drive module 25, the working state value of the wire feeding motor 11 is timely detected by the working state value detection module 21, when the working state value detected by the working state value detection module 21 is larger than the set rated working state value, the instant position recording module 23 records the position of the spray head 10, the homing drive module 24 returns the spray head 10 to the initial printing position, and then the spray head 10 is overhauled by a user to avoid damage to a printed 3D product when the spray head is overhauled. When the wire feeding motor 11 is turned on again after the nozzle is detected and modified, and the detected working state value is less than or equal to the rated working state value, the reset driving module drives 25 the nozzle 10 to return to the immediate printing position to restart printing. Since the working state of the wire feeding motor 11 must change when the nozzle 10 is blocked and cannot output the printing material, such as the current or voltage increases, the working state value detection module 21 can detect the change and the change is accurate and timely, so that the damage of the printed product caused by the nozzle blocking can be avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims (10)

  1. The shower nozzle of 3D printer blocks up detection processing system, the 3D printer includes a shower nozzle, one penetrates the printing silk of shower nozzle, and a drive print the wire feed motor of silk motion, its characterized in that: the spray head blockage detection processing system of the 3D printer comprises an initial value setting module, a working state value detection module, a comparison module, an instant position recording module, a reset driving module and a reset driving module, wherein the initial value setting module is used for recording a rated working state value of a wire feeding motor and an initial printing position of the wire feeding motor, the working state value detection module is used for detecting an instant working state value of the wire feeding motor when the spray head works, the comparison module is used for timely comparing the instant working state value with the rated working state value, the instant position recording module is only used for recording the instant printing position of the wire feeding motor when the instant working state value is larger than the rated working state value, and the reset driving module is used for enabling the wire feeding motor to stop feeding the wire when the instant working state value is larger than the rated working state value And returning to the initial printing position to overhaul the spray head, wherein the reset driving module is used for driving the wire feeding motor to reset to the immediate printing position when the wire feeding motor is started again and the working state value of the wire feeding motor detected by the working state value detection module is less than or equal to the set rated working state value.
  2. 2. The system for detecting and processing clogging of a nozzle of a 3D printer according to claim 1, wherein: the rated working state value is a rated working current value or a rated working voltage value.
  3. 3. The system for detecting and processing clogging of a nozzle of a 3D printer according to claim 2, wherein: the working state value of the wire feeding motor detected by the working state value detection module corresponds to the set rated working state value.
  4. 4. The system for detecting and processing clogging of a nozzle of a 3D printer according to claim 1, wherein: the rated working state value is an interval value, and when the instant working state value is larger than the maximum value of the rated working state value, the instant position recording module and the homing driving module start to work.
  5. 5. The nozzle clogging detection processing system of a 3D printer as claimed in claim 1, characterized in that: the spray head blockage detection processing system of the 3D printer further comprises an alarm module, and when the instant working state value is larger than the rated working state value, the alarm module sends warning information.
  6. 6. The system for detecting and processing clogging of a nozzle of a 3D printer according to claim 1, wherein: the system for detecting and processing the blockage of the spray head of the 3D printer further comprises a central processing unit, wherein the central processing unit is electrically connected with the initial value setting module, the working state value detecting module, the comparing module and the homing driving module respectively so as to process data from the initial value setting module, the working state value detecting module and the comparing module and output a control signal for controlling the homing driving module to work.
  7. 7. The system for detecting and processing blockage of a nozzle of a 3D printer as claimed in claim 6, wherein: the central processing unit is one of a PLC, a microprocessor and a central processing unit.
  8. 8.3D printer's shower nozzle blocks up detection processing method, 3D printer includes a shower nozzle, one penetrates the printing silk of shower nozzle, and a drive print the silk motion send a motor, its including the following step:
    providing an initial value setting module, wherein the initial value setting module is used for recording a rated working state value of the wire feeding motor and an initial printing position of the wire feeding motor;
    providing a working state value detection module, wherein the working state value detection module is used for detecting an instant working state value when the wire feeding motor drives the spray head to work;
    providing a comparison module, wherein the comparison module is used for timely comparing the instant working state value with a rated working state value;
    providing an instant position recording module, wherein the instant position recording module is only used for recording the instant printing position of the wire feeding motor when the instant working state value is larger than the rated working state value;
    providing a homing driving module, wherein the homing driving module is used for stopping the wire feeding motor from feeding wires and returning to an initial printing position to overhaul the spray head when the instant working state value is larger than the rated working state value: and
    and providing a reset driving module, wherein the reset driving module is used for driving the wire feeding motor to reset to the immediate printing position recorded by the immediate position recording module when the working state value of the wire feeding motor detected by the working state value detection module is less than or equal to the set rated working state value.
  9. 9. The method of detecting and processing the clogging of the head of the 3D printer according to claim 8, characterized in that: the rated working state value is an interval value, and when the instant working state value is larger than the maximum value of the rated working state value, the instant position recording module and the homing driving module start to work.
  10. 10. The method for detecting and processing the blockage of the nozzle of the 3D printer as claimed in claim 9, wherein: when the instant working state value is between the interval values, the reset driving module drives the wire feeding motor to reset to the instant printing position recorded by the instant position recording module.
CN202110551290.9A 2021-05-20 2021-05-20 Spray head blockage detection processing system and method of 3D printer Active CN113232302B (en)

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