CN111251409A - Table type concrete 3D printer - Google Patents

Table type concrete 3D printer Download PDF

Info

Publication number
CN111251409A
CN111251409A CN202010048829.4A CN202010048829A CN111251409A CN 111251409 A CN111251409 A CN 111251409A CN 202010048829 A CN202010048829 A CN 202010048829A CN 111251409 A CN111251409 A CN 111251409A
Authority
CN
China
Prior art keywords
axis module
printer
module
concrete
printing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010048829.4A
Other languages
Chinese (zh)
Inventor
李芳�
刘潇
高彦成
屈浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huachuangzhizao Tianjin Technology Co ltd
Original Assignee
Huachuangzhizao Tianjin Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huachuangzhizao Tianjin Technology Co ltd filed Critical Huachuangzhizao Tianjin Technology Co ltd
Priority to CN202010048829.4A priority Critical patent/CN111251409A/en
Publication of CN111251409A publication Critical patent/CN111251409A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • 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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)

Abstract

The utility model provides a desk-top concrete 3D printer includes: a frame; the three-dimensional motion platform is detachably fixed on the frame through supporting seats on the two sliding rails of the X-axis module; the printing nozzle is fixed on a sliding block of a Y-axis module of the three-dimensional motion platform; the control module is used for controlling the driving motors of the X-axis module, the Y-axis module and the Z-axis module in the three-dimensional motion platform to operate and moving the printing nozzle to a set position; and controlling a printing motor in the printing nozzle to operate to extrude the material. In the disclosure, the three-dimensional motion platform is detachably fixed on the frame through the supporting seat, the dismounting, the mounting and the maintenance are simple and convenient, the supporting seat can slide back and forth along the X axis, the mounting is convenient, and the application range is wide.

Description

Table type concrete 3D printer
Technical Field
The utility model relates to an electromechanical device and building 3D print technical field, especially relate to a desktop concrete 3D printer.
Background
The 3D Printing technology (3D Printing, 3DP for short) appeared in the middle of the 90 s of the 20 th century, and its working principle is to superpose "printed materials" layer by layer through computer control, and finally convert the blueprint on the computer into a physical product.
The building 3D printing technology is a novel application developed on the basis of Fused Deposition Modeling (FDM for short), and the principle is that three-dimensional slicing software is used for slicing and layering a three-dimensional model of a building component to generate a printer motion code, then a three-coordinate mobile platform of a printer is used for driving an extruder to extrude cement mortar layer by layer, and the building component with a practical function is formed by multiple stacking.
In the process of realizing the disclosure, the applicant finds that the existing concrete 3D printer is heavy and inconvenient to disassemble, install, carry and clean; meanwhile, the degree of automation is low, the control on the parameters such as material level and material quality of the materials is still in an experience stage, and the dependence on manpower is strong.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
Technical problem to be solved
The present disclosure provides a desktop concrete 3D printer to at least partially solve the technical problems set forth above.
(II) technical scheme
The utility model provides a desk-top concrete 3D printer includes: a frame; the three-dimensional motion platform is detachably fixed on the frame through supporting seats on the two sliding rails of the X-axis module; the printing nozzle is fixed on a sliding block of a Y-axis module of the three-dimensional motion platform; the control module is used for controlling the driving motors of the X-axis module, the Y-axis module and the Z-axis module in the three-dimensional motion platform to operate and moving the printing nozzle to a set position; and controlling a printing motor in the printing nozzle to operate to extrude the material.
In some embodiments of the present disclosure, fixing grooves are formed at two sides of the bottom of each sliding rail of the X-axis module, each fixing groove corresponds to at least two supporting seats, the supporting seats are slidably clamped in the fixing grooves, and the supporting seats are downwardly provided with fixing holes at corner positions thereof; the frame is provided with corresponding fixing holes; the three-dimensional motion platform and the frame are detachably connected through the fixing pieces in the fixing holes.
In some embodiments of the present disclosure, for a frame: two supporting arms respectively extend out of two sides of the frame main body, and each supporting arm corresponds to a supporting seat clamped on the X-axis module; the supporting arm is provided with a fixing hole; and the fixing bolt penetrates through the fixing hole on the supporting seat and the fixing hole on the supporting arm to fix the three-dimensional motion platform on the frame.
In some embodiments of the present disclosure, further comprising: a connecting device; the connecting device includes: the fixed mounting plate is fixedly mounted on the sliding block of the Y-axis module; the spray head mounting plate is fixed on the fixed mounting plate and arranged in the horizontal direction; the printing nozzle includes: the stepping motor is fixed above the spray head mounting plate, and an output shaft of the stepping motor vertically penetrates through the spray head mounting plate downwards; a charging barrel fixed below the nozzle mounting plate and provided with a feeding hole which is obliquely upward; the sprayer packing auger is vertically and downwards arranged in the charging barrel, and the upper end of the sprayer packing auger is connected to an output shaft of the stepping motor through a coupler; and the spray head is arranged at the lower part of the charging barrel.
In some embodiments of the disclosure, the cartridge comprises, from top to bottom: a feed sleeve, a conical barrel and a cylinder; the feeding sleeve is downwards connected with a large opening of the conical barrel, upwards provides a connecting space for a motor shaft of the stepping motor and an auger shaft of the sprayer auger, and obliquely upwards forms a feeding hole; the cylinder is upwards connected with a small opening of the conical cylinder and is downwards screwed with the spray head; the spray head auger penetrates through the feeding sleeve, the conical cylinder and the cylinder.
In some embodiments of the present disclosure, further comprising: a material level sensor arranged at the inner side of the conical barrel and used for sensing a second material level L for representing the material amount in the charging barrel2(ii) a A pressure sensor arranged at the connecting position of the conical cylinder and the cylinder and used for sensing a second pressure P for representing the pressure of the material in the extrusion process2(ii) a The control module is used for controlling the second material level L according to the second material level L2And a second pressure P2And controlling a stepping motor in the printing nozzle.
In some embodiments of the disclosure, the control module executes the following control logic:
receiving a second material level L obtained by the material level sensor2；
Receiving a second pressure P obtained by the pressure sensor2；
When the second material level L2Lower than the set lower limit L of the material level in the printing nozzle hopper04When the printing motor is stopped;
when the second material level L2Higher than the upper limit L of the material level in the set printing nozzle hopper05When the alarm signal is received, an alarm signal is sent out;
when the second pressure P is2When the fluctuation value exceeds the set fluctuation range, alarm information is sent out and the printing motor is stopped.
In some embodiments of the present disclosure, further comprising: an ultrasonic vibration source arranged outside the printing nozzle hopper and used for vibrating and degassing the materials in the hopper in an ultrasonic vibration mode, wherein the frequency range of the ultrasonic vibration is 2 multiplied by 104～5×104Hz。
In some embodiments of the present disclosure, a three-dimensional motion platform comprises: x axle module, Y axle module and Z axle module, wherein: two sliding rails of the X-axis module are fixed on the frame through a supporting seat; two slide rails of the Z-axis module are vertically and upwards fixed on two slide blocks of the X-axis module respectively; two sides of a slide rail of the Y-axis module are respectively fixed on two slide blocks of the Z-axis module; the printing spray heads are fixed on the sliding blocks along the Y-axis module, and the sliding blocks of the three modules are driven by corresponding driving motors to move on corresponding sliding rails under the control of the control module.
In some embodiments of the present disclosure, a module slider of a three-dimensional motion platform is provided with a front and rear motion detection part; the motion detection component is used for measuring the distance between the current position of the sliding block and the front limit position and the rear limit position in real time, sending a signal to the control module after the sliding block reaches the limit position, and stopping the operation of the corresponding driving motor by the control module.
(III) advantageous effects
According to the technical scheme, the desktop concrete 3D printer at least has one of the following beneficial effects:
(1) the three-dimensional motion platform is detachably fixed on the frame through the supporting seat, the dismounting, the mounting and the maintenance are simple and convenient, the supporting seat can slide back and forth along the X axis, the mounting is convenient, and the application range is wide.
(2) The three-dimensional moving platform is used as a moving supporting part of the printing nozzle, the technology is mature, the moving stability is good, the whole machine is small and exquisite, the application range is wide, and manual carrying and installation are facilitated.
(3) The screw conveyer rotating extrusion mechanism is directly driven by the stepping motor, so that the structure is simple, and the disassembly, maintenance and cleaning are convenient.
(4) Realize the monitoring to the material level through material level sensor, realized the monitoring of material homogeneity through pressure sensor, come control print motor through the information of material level information and material homogeneity, can guarantee the quality of printing the product as far as possible, save the manual work, can also avoid owing to spout the harm of situations such as material to the printing shower nozzle.
(5) The ultrasonic vibration is adopted for degassing, so that the influence of degassing vibration on printing operation is avoided, and the quality of printed works cannot be influenced.
Drawings
Fig. 1 is a schematic structural diagram of a desktop concrete 3D printer according to an embodiment of the present disclosure.
Fig. 2 is a perspective view of a print head and connection assembly in the desktop concrete 3D printer shown in fig. 1.
Fig. 3 is a schematic diagram of control logic executed by a control module in the desktop concrete 3D printer shown in fig. 1.
[ description of main reference numerals in the drawings ] of the embodiments of the present disclosure
100-a frame;
110-a frame body;
121-casters;
130-roller frame; 131-a roller; 132-dowel pin configuration;
141-a support arm;
200-a three-dimensional motion platform;
210-X axis module;
211-fixed slots; 212-a support base; 213-a fixation hole;
214. 215-front and rear two motion detection means;
221-Y axis slide rails;
231-Z axis slide rails;
300-printing a spray head;
311-fixing the mounting plate; 312-a showerhead mounting plate;
320-a stepper motor;
330-a cartridge; 340-a nozzle auger; 350-a spray head;
331-feed port; 332-a feeder sleeve; 333-conical cylinder; 334-cylinders;
400-sliding platform.
Detailed Description
The utility model provides a dismantle, installation, maintenance, clearance convenience, intelligent degree is high, wide desktop concrete 3D printer of application scope.
Certain embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the disclosure are shown. Indeed, various embodiments of the disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In one exemplary embodiment of the present disclosure, a desktop concrete 3D printer is provided. Fig. 1 is a schematic structural diagram of a desktop concrete 3D printer according to an embodiment of the present disclosure. As shown in fig. 1, the desktop concrete 3D printer of the present embodiment includes: a frame 100; the three-dimensional motion platform 200 is detachably fixed on the frame through support seats on the two slide rails of the X-axis module; the printing nozzle 300 is fixed on a slide block of a Y-axis module of the three-dimensional motion platform; the control module (not shown) is used for controlling the driving motors of the X-axis module, the Y-axis module and the Z-axis module in the three-dimensional motion platform to operate and moving the printing nozzle to a set position; and controlling the printing motor to operate to extrude the material.
Fixing grooves 211 are formed in two sides of the bottom of each sliding rail of the X-axis module, each fixing groove corresponds to at least two supporting seats 212, the supporting seats are slidably clamped in the fixing grooves, and fixing holes 213 are formed in the supporting seats at the four corner positions of the supporting seats downwards. The frame is also provided with corresponding fixing holes. The three-dimensional motion platform and the frame are detachably connected through the fixing pieces in the fixing holes.
In this embodiment, three-dimensional motion platform passes through supporting seat detachably and is fixed in on the frame, dismantles, installation, maintains simple and conveniently, and stability is good, and the supporting seat can be followed X axle and slided from beginning to end, simple to operate, and application scope is wide.
The components of the desktop concrete 3D printer according to the present embodiment are described in detail below.
Referring to fig. 1, the frame includes: a frame body 110; four casters 121 installed at four corner positions below the frame main body; the roller frame 130 is installed on the upper table of the frame body, and a plurality of rollers 131 parallel to the short side direction of the frame are arranged on the inner side of the roller frame. Desktop concrete 3D printer of this embodiment still includes: and a sliding platform 400 which can be pushed in or pulled out along the roller on the roller frame along the X-axis direction.
In this embodiment, two support arms 141 extend from two sides of the frame body, and each support arm corresponds to a support base clamped to the X-axis module. The supporting arm is provided with a fixing hole. And the fixing bolt penetrates through the fixing hole on the supporting seat and the fixing hole on the supporting arm to fix the three-dimensional motion platform on the frame.
Further, at one side of the roller frame, a positioning pin structure 132 is provided. And a positioning pin structure corresponding to the positioning pin structure is arranged on the sliding platform. The two positioning pin structures are matched, so that the position of the sliding platform on the roller frame can be fixed.
Referring to fig. 1, the three-dimensional motion platform 200 is fixed on the frame, and includes: an X-axis module 210, a Y-axis module, and a Z-axis module. Wherein, two slide rails of the X-axis module are fixed on the frame through a support seat; two slide rails 231 of the Z-axis module are vertically and upwardly fixed on two slide blocks of the X-axis module respectively. Two sides of the slide rail 221 of the Y-axis module are fixed to two slide blocks of the Z-axis module, respectively. And a printing nozzle is fixed on the slide block along the Y-axis module. The sliding blocks of the three modules are driven by corresponding driving motors to move on corresponding sliding rails.
In this embodiment, adopt three-dimensional motion platform as the motion supporting component of printing the shower nozzle, the technology is mature, and the motion stability is good, and the complete machine is small and exquisite, and application scope is wide, the manual work of being convenient for is carried and is installed.
In addition, a front and a rear movement detection part (214, 215) are arranged on the sliding block of each module, the movement detection part is used for measuring the distance between the current position of the sliding block and the front and rear limit positions in real time, after the sliding block reaches the limit position, a signal is sent to the control module, and the control module stops the operation of the corresponding driving motor.
The printing nozzle 300 is fixed on the slider of the Y-axis module by a coupling assembly. Fig. 2 is a perspective view of a print head and connection assembly in the desktop concrete 3D printer shown in fig. 1. Referring to fig. 2, the connecting device includes: a fixed mounting plate 311 fixedly mounted on the slider of the Y-axis module; the nozzle mounting plate 312 is fixed to the fixed mounting plate and is disposed in a horizontal direction.
Referring to fig. 2, the print head includes: the stepping motor 320 is fixed above the spray head mounting plate, and an output shaft of the stepping motor vertically penetrates through the spray head mounting plate downwards; a cylinder 330 fixed below the head mounting plate and having an inlet 331 formed obliquely upward; the spray head packing auger 340 is vertically and downwards arranged in the charging barrel, and the upper end of the spray head packing auger is connected to an output shaft of the stepping motor through a coupler; and a nozzle 350 installed at a lower portion of the cartridge. Wherein, the material is filled from the feed inlet, and the shower nozzle auger is rotatory under step motor's drive, extrudes the material from the shower nozzle.
Wherein, the feed cylinder adopts ya keli material, and top-down includes: a feeder sleeve 332, a cone 333, and a cylinder 334. The feeding sleeve is connected with the large opening of the conical barrel downwards, the feeding sleeve provides a connecting space for a motor shaft of the stepping motor and an auger shaft of the sprayer auger upwards, and a feeding opening 331 is formed in the oblique upper direction of the feeding sleeve. The cylinder is upwards connected with a small opening of the conical cylinder and is downwards screwed with the spray head. The spray head auger 340 penetrates through the feeding sleeve, the conical cylinder and the cylinder, presses the material from the conical cylinder into the cylinder and extrudes the material from the spray head.
In the embodiment, the stepping motor and the sprayer auger are connected simply, the structure is simple and convenient, and the auger is adopted to rotate and extrude, so that the disassembly and the cleaning are convenient.
A material level sensor and a pressure sensor are arranged in the conical barrel. Wherein, the material level sensor is arranged at the inner side of the conical barrel and used for sensing a second material level L for representing the material amount in the charging barrel2. The pressure sensor is arranged at the connecting position of the conical cylinder and the cylinder and used for sensing a second pressure P for representing the pressure of the material in the extrusion process2. In order to ensure the quality of the printed finished product, the consistency of the concrete slurry, namely the extrusion pressure, needs to be kept uniform in the printing process. The fluctuation of the pressure indicates that the water content and the air content between the front material and the rear material are changed, namely the quality of the concrete slurry is fluctuated, and if the fluctuation exceeds a preset range, the printing is required to be suspended.
Fig. 3 is a schematic diagram of control logic executed by a control module in the desktop concrete 3D printer shown in fig. 1. As shown in fig. 3, the control logic executed by the control module in this embodiment is as follows:
step S302, receiving the second material level L acquired by the material level sensor in real time2；
Step S304, receiving the second pressure P acquired by the pressure sensor in real time2；
Step S306, when the second material level L2Lower than the set lower limit L of the material level in the printing nozzle hopper04When the printing motor is stopped;
step S308, when the second material level L2Higher than the upper limit L of the material level in the set printing nozzle hopper05When the alarm signal is received, an alarm signal is sent out;
step S310, when the second pressure P is applied2When the fluctuation value of the printer exceeds the range of +/-20% of the set stable value, alarm information is sent out and the printing motor is stopped.
In the embodiment, the requirement on the quality of the material is higher, so that a pressure sensor with higher precision and a narrower pressure fluctuation range are adopted. In other embodiments of the present disclosure, the operator may make appropriate settings as needed with respect to the pressure fluctuation range.
Those skilled in the art can understand that too much or too little material and uniformity can affect the performance of the printer and the quality of the printed product, in this embodiment, the material level is monitored by the material level sensor, the uniformity of the material is monitored by the pressure sensor, and the printing motor is stopped or an alarm signal is sent when an abnormal condition occurs, so that the quality of the printed product can be ensured as much as possible, and the labor is saved; meanwhile, the printing nozzle is not damaged, and the service life of the printing nozzle is prolonged.
In this embodiment, the method further includes: and the ultrasonic vibration source is arranged on the outer side of the printing nozzle hopper and used for vibrating and degassing the materials in the hopper in an ultrasonic vibration mode.
Wherein the ultrasonic vibration source is an ultrasonic vibration motor, and the frequency range of the ultrasonic vibration is 2 × 104～5×104Hz. The vibration of ultrasonic frequency is used for removing micro-bubbles in the material, and the frequency range does not influence the printing precision and the quality of printed works.
So far, the introduction of the desktop concrete 3D printer of this embodiment is finished.
So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the particular structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by one of ordinary skill in the art, for example:
(1) the supporting arms can also be arranged at two sides of the roller frame;
(2) the supporting arm on the frame and the supporting seat of the three-dimensional motion platform can be connected in a riveting, clamping and other fixing modes;
(3) the material level sensor and the pressure sensor can also adopt various types of sensors;
from the above description, those skilled in the art should clearly recognize that the desktop concrete 3D printer of the present disclosure is applicable.
To sum up, this disclosure provides a dismantle, installation, maintenance, clearance convenience, and intelligent degree is higher, and application scope is wider desk-top concrete 3D printer can promote the application scope of 3D printer greatly, saves the manual work, improves the printing quality, has better practical value.
It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure.
And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, this disclosure is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the present disclosure as described herein, and any descriptions above of specific languages are provided for disclosure of enablement and best mode of the present disclosure.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims (10)

1. A desktop concrete 3D printer comprising:
a frame;
the three-dimensional motion platform is detachably fixed on the frame through supporting seats on the two sliding rails of the X-axis module;
the printing spray head is fixed on a slide block of a Y-axis module of the three-dimensional motion platform;
the control module is used for controlling the driving motors of the X-axis module, the Y-axis module and the Z-axis module in the three-dimensional motion platform to operate and moving the printing nozzle to a set position; and controlling a printing motor in the printing nozzle to operate to extrude the material.
2. The desktop concrete 3D printer of claim 1, wherein:
fixing grooves are formed in two sides of the bottom of each sliding rail of the X-axis module, each fixing groove corresponds to at least two supporting seats, the supporting seats are clamped in the fixing grooves in a sliding mode, and fixing holes are formed in the supporting seats downwards at corner positions of the supporting seats;
the frame is provided with corresponding fixing holes; the three-dimensional motion platform and the frame are detachably connected through fixing pieces in the fixing holes.
3. The desktop concrete 3D printer of claim 2, for the frame: two supporting arms respectively extend out of two sides of the frame main body, and each supporting arm corresponds to a supporting seat clamped on the X-axis module; the supporting arm is provided with a fixing hole; and the fixing bolt penetrates through the fixing hole on the supporting seat and the fixing hole on the supporting arm to fix the three-dimensional motion platform on the frame.
4. The desktop concrete 3D printer of claim 1, further comprising: a connecting device;
the connecting device includes: the fixed mounting plate is fixedly mounted on the sliding block of the Y-axis module; the spray head mounting plate is fixed on the fixed mounting plate and arranged in the horizontal direction;
the printing nozzle includes: the stepping motor is fixed above the spray head mounting plate, and an output shaft of the stepping motor vertically penetrates through the spray head mounting plate downwards; a charging barrel fixed below the nozzle mounting plate and provided with a feeding hole which is obliquely upward; the sprayer packing auger is vertically and downwards arranged in the charging barrel, and the upper end of the sprayer packing auger is connected to an output shaft of the stepping motor through a coupler; and the spray head is arranged at the lower part of the charging barrel.
5. The desktop concrete 3D printer of claim 4, wherein the cartridge comprises, from top to bottom: a feed sleeve, a conical barrel and a cylinder;
the feeding sleeve is downwards connected with a large opening of the conical barrel, upwards provides a connecting space for a motor shaft of the stepping motor and an auger shaft of the sprayer auger, and forms a feeding hole obliquely upwards; the cylinder is upwards connected with a small opening of the conical cylinder and is downwards screwed with the spray head;
the nozzle auger penetrates through the feeding sleeve, the conical cylinder and the cylinder.
6. The desktop concrete 3D printer of claim 5, further comprising:
a material level sensor arranged at the inner side of the conical barrel and used for sensing a second material level L for representing the material amount in the charging barrel2；
A pressure sensor arranged at the connecting position of the conical cylinder and the cylinder and used for sensing a second pressure P for representing the pressure of the material in the extrusion process2；
The control module is used for controlling the second material level L according to the second material level L2And a second pressure P2And controlling a stepping motor in the printing nozzle.
7. The desktop concrete 3D printer of claim 6, the control module executing control logic as follows:
receiving a second material level L obtained by the material level sensor2；
Receiving a second pressure P obtained by the pressure sensor2；
When the second material level L2Lower than the set lower limit L of the material level in the printing nozzle hopper04When the printing motor is stopped;
when the second material level L2Higher than the upper limit L of the material level in the set printing nozzle hopper05When the alarm signal is received, an alarm signal is sent out;
when the second pressure P is2When the fluctuation value exceeds the set fluctuation range, alarm information is sent out and the printing motor is stopped.
8. The desktop concrete 3D printer of claim 5, further comprising:
an ultrasonic vibration source arranged outside the printing nozzle hopper and used for vibrating and degassing the materials in the hopper in an ultrasonic vibration mode, wherein the frequency range of the ultrasonic vibration is 2 multiplied by 104～5×104Hz。
9. The desktop concrete 3D printer of any of claims 1-8, the three-dimensional motion platform comprising: x axle module, Y axle module and Z axle module, wherein:
two sliding rails of the X-axis module are fixed on the frame through a supporting seat;
two slide rails of the Z-axis module are vertically and upwards fixed on two slide blocks of the X-axis module respectively;
two sides of a slide rail of the Y-axis module are respectively fixed on two slide blocks of the Z-axis module;
the printing spray heads are fixed on the sliding blocks along the Y-axis module, and the sliding blocks of the three modules are driven by corresponding driving motors to move on corresponding sliding rails under the control of the control module.
10. The desktop concrete 3D printer according to claim 9, wherein a front and rear movement detecting part is provided on a module slider of the three-dimensional movement platform;
the motion detection component is used for measuring the distance between the current position of the sliding block and the front limit position and the rear limit position in real time, sending a signal to the control module after the sliding block reaches the limit position, and stopping the operation of the corresponding driving motor by the control module.
CN202010048829.4A 2020-01-16 2020-01-16 Table type concrete 3D printer Pending CN111251409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010048829.4A CN111251409A (en) 2020-01-16 2020-01-16 Table type concrete 3D printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010048829.4A CN111251409A (en) 2020-01-16 2020-01-16 Table type concrete 3D printer

Publications (1)

Publication Number Publication Date
CN111251409A true CN111251409A (en) 2020-06-09

Family

ID=70945229

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010048829.4A Pending CN111251409A (en) 2020-01-16 2020-01-16 Table type concrete 3D printer

Country Status (1)

Country Link
CN (1) CN111251409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474300A (en) * 2022-02-23 2022-05-13 北京市市政二建设工程有限责任公司 Concrete on-site 3D printing equipment and application method thereof
CN114953178A (en) * 2022-05-31 2022-08-30 上海市机械施工集团有限公司 Feeding mechanism for three-dimensional concrete printing, printing system and control method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106476113A (en) * 2015-08-25 2017-03-08 安徽中科镭泰激光科技有限公司 Desk-top pottery three-dimensional spray printing forming machine and manufacturing process
US20170182717A1 (en) * 2015-12-29 2017-06-29 Enjet Co. Ltd . Multifunction 3d printer
CN109500977A (en) * 2018-12-26 2019-03-22 河北工业大学 A kind of Table top type cement-based material 3D printer
CN110171053A (en) * 2019-05-30 2019-08-27 同济大学 It is a kind of for building the ejecting device and control method of 3D printing
CN110341185A (en) * 2019-08-22 2019-10-18 北京星航机电装备有限公司 A kind of 3D printer upper dust feeder automatically
CN209551984U (en) * 2018-12-10 2019-10-29 建研华测（杭州）科技有限公司 A kind of multiple degrees of freedom 3D printing equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106476113A (en) * 2015-08-25 2017-03-08 安徽中科镭泰激光科技有限公司 Desk-top pottery three-dimensional spray printing forming machine and manufacturing process
US20170182717A1 (en) * 2015-12-29 2017-06-29 Enjet Co. Ltd . Multifunction 3d printer
CN209551984U (en) * 2018-12-10 2019-10-29 建研华测（杭州）科技有限公司 A kind of multiple degrees of freedom 3D printing equipment
CN109500977A (en) * 2018-12-26 2019-03-22 河北工业大学 A kind of Table top type cement-based material 3D printer
CN110171053A (en) * 2019-05-30 2019-08-27 同济大学 It is a kind of for building the ejecting device and control method of 3D printing
CN110341185A (en) * 2019-08-22 2019-10-18 北京星航机电装备有限公司 A kind of 3D printer upper dust feeder automatically

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474300A (en) * 2022-02-23 2022-05-13 北京市市政二建设工程有限责任公司 Concrete on-site 3D printing equipment and application method thereof
CN114474300B (en) * 2022-02-23 2023-11-14 北京市市政二建设工程有限责任公司 Concrete site 3D printing equipment and application method thereof
CN114953178A (en) * 2022-05-31 2022-08-30 上海市机械施工集团有限公司 Feeding mechanism for three-dimensional concrete printing, printing system and control method

Similar Documents

Publication Publication Date Title
CN111251409A (en) Table type concrete 3D printer
CN108356955B (en) Cement-based material 3D printer for experiments
EP2886277B1 (en) Method and apparatus for delivery of cementitious material
CN111251411A (en) Frame type concrete 3D printer
CN105216333A (en) A kind of three-dimensional printer liquid extruding system and its implementation
CN205044178U (en) 3D printer is piled up in melting with combined screw
CN110815502A (en) Automatic grouting device for high-pressure forming
CN106180714A (en) Downstriker powder feed system
CN104231524A (en) Moulded wire and preparation method thereof
CN106965433B (en) Five 3D printers
CN111251410B (en) Feeding mechanism and building 3D printing system using same
CN103737714B (en) Semi automatic block streamline
CN112476774B (en) Multi-rotation-direction type building material processing system
CN109551607A (en) A kind of elevating lever-type cement products 3D printing equipment
CN110528884B (en) 3D printing device and method suitable for small concrete member and application
CN109488025B (en) Building 3D prints processingequipment
CN111391063A (en) Print shower nozzle and use its building 3D printer
CN110509540A (en) A kind of multiple dimensioned 3D printing device and method
CN211278914U (en) Automatic grouting device for high-pressure forming
CN106626387A (en) High-speed FDM3D printer structure device
CN112873476B (en) Extrusion formula 3D prints concrete extrusion system
CN210105324U (en) Large-scale cement 3D printing apparatus
CN111391062B (en) Desktop formula concrete 3D printer
CN211329902U (en) Steel sheet paint spraying apparatus is used in electric oven production
CN109518975A (en) A kind of large-scale cement 3D printing equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200609