CN111196035A

CN111196035A - Extrusion moulding aircraft nose on 3D printer

Info

Publication number: CN111196035A
Application number: CN202010159214.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Kangyan Stationery Co ltd
Current assignee: Hangzhou Kangyan Stationery Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-05-26

Abstract

The invention discloses an extrusion molding machine head on a 3D printer, which comprises a machine body, wherein a material cavity is arranged in the machine body, a horizontally arranged cross rod is fixedly arranged in the material cavity, a driving motor is fixedly arranged in the cross rod, a first rotating shaft is dynamically arranged at the lower end of the driving motor, a first rotating sheet is fixedly wound on the first rotating shaft, the invention is provided with an extrusion rotating disc, the extrusion turntable is adjusted to rotate according to the actually required extrusion molding shape, so that the extrusion head is communicated with the connecting pipe correspondingly, the sealing device controls the flow state of the raw materials in the connecting pipe, so that the raw materials are conveyed downwards and output through the extrusion head, the extrusion shape of the device is flexible and adjustable, the application range is wide, secondly, through the clout monitoring devices detectable material intracavity clout to the warning staff in time adds the clout or shuts down, this device degree of automation is high, is applicable to the 3D printing work of different grade type and shape.

Description

Extrusion moulding aircraft nose on 3D printer

Technical Field

The invention relates to the technical field of 3D printing, in particular to an extrusion molding machine head on a 3D printer.

Background

3D prints one kind of rapid prototyping technique promptly, also known as additive manufacturing, it is one kind and uses digital model file as the basis, but adhesive material such as application powdered metal or plastics, the technique of constructing the object through the mode that the successive layer was printed, current 3D printing head structure is single, only can extrude the raw materials of a shape through beating printer head, change of beating printer head and extruding the shape through changing, this process operation is inconvenient, secondly, do not carry out real-time supervision to the clout in the current 3D prints, be not convenient for in time add the material or shut down, easily cause printing device's damage. The present invention sets forth a device that solves the above problems.

Disclosure of Invention

The technical problem is as follows:

traditional 3D beats printer head single structure, and it is inconvenient to beat printer head operation to change, and secondly, does not carry out real-time supervision to the clout in current 3D prints, is not convenient for in time add the material or shut down.

In order to solve the problems, the extrusion molding machine head on the 3D printer is designed in the embodiment, the extrusion molding machine head on the 3D printer comprises a machine body, a material cavity is arranged in the machine body, a horizontally arranged cross rod is fixedly arranged in the material cavity, a driving motor is fixedly arranged in the cross rod, a first rotating shaft is dynamically installed at the lower end of the driving motor, a first rotating sheet is fixedly wound on the first rotating shaft, a second rotating shaft is fixedly arranged at the lower end of the first rotating shaft, a second rotating sheet is fixedly wound on the second rotating shaft, the driving motor drives the first rotating sheet and the second rotating sheet to rotate to convey raw materials downwards when working, a residual material monitoring device is arranged on the right side of the material cavity and is used for detecting raw material residual materials in the material cavity, a connecting pipe is communicated with the lower side of the material cavity, and a sealing device is arranged in the connecting pipe, sealing device includes bilateral symmetry's two closing plates, the closing plate meet the back can with the decline that the raw materials was blockked to the intraductal sealing of connecting pipe, the connecting pipe right side is equipped with elevating gear, elevating gear includes the screw shaft, the screw shaft lower extreme has set firmly the rotation motor, it has the axis of rotation to rotate motor lower extreme power and install, the axis of rotation lower extreme has set firmly extrudes the carousel, extrude the carousel with the screw shaft passes through the bearing and rotates the installation, it is provided with six circulation holes that run through from top to bottom to extrude carousel interior annular array, extrude the carousel lower extreme have set firmly six with the head is extruded that the circulation hole position corresponds, thereby rotate motor work, make it rotates to extrude the carousel, extrude the raw materials according to actual demand shape regulation required extrude the head with the connecting pipe position corresponds.

Preferably, the cross-sectional size of the connection pipe is equal to the cross-sectional size of the flow hole, and the lower end of the connection pipe can extend into the flow hole.

Wherein, the excess material monitoring device comprises a rotary groove, the rotary groove is rotationally provided with a rotary shaft with the left end extending into the material cavity, the right end of the rotary shaft extends to the outside and is fixedly provided with a warning lamp, a pressure spring is fixedly arranged between the upper end of the rotary shaft and the rotary groove, the lower end of the rotary shaft is fixedly provided with an electrified block electrically connected with the warning lamp, the lower side of the rotary groove is communicated with a centrifugal cavity, a sliding plate is arranged in the centrifugal cavity in a sliding manner, an abutting block which is in abutting connection with the abutting block and is electrified is fixedly arranged on the upper end face of the sliding plate, a centrifugal disc is arranged in the centrifugal cavity through the rotation of the rotary shaft, centrifugal chutes which are symmetrical up and down are arranged in the centrifugal disc, centrifugal slide blocks are arranged in the centrifugal chutes in a sliding manner, an extrusion spring is fixedly arranged between one end of the, the left end of the centrifugal rotating shaft extends into the transmission cavity and is fixedly provided with a first bevel gear, the lower side of the first bevel gear is meshed with a second bevel gear, the center of the second bevel gear is fixedly provided with a gear rotating shaft, and the gear rotating shaft is in power connection with the first rotating shaft through a transmission belt.

Preferably, a guide chute is communicated with the left end wall of the centrifugal cavity, the left end of the sliding plate extends into the guide chute, a return spring is fixedly arranged between the lower end wall of the guide chute and the sliding plate, and the guide chute has a guiding and limiting effect on the sliding of the sliding plate.

The sealing device comprises two bilaterally symmetrical sliding grooves, sliding blocks are arranged in the sliding grooves in a sliding mode, the sealing plate is rotatably installed in the sliding blocks through a sealing rotating shaft, torsion springs are fixedly arranged on the sealing rotating shaft, one ends, far away from the sealing rotating shaft, of the torsion springs are fixedly connected with the sliding blocks, fixing rods are fixedly arranged on the upper end faces of the sliding blocks, pushing grooves are formed in the upper sides of the sliding grooves, pushing blocks are arranged in the pushing grooves in a sliding mode, the lower ends of the pushing blocks are fixedly connected with the upper ends of the fixing rods, and telescopic springs are fixedly arranged between the upper ends of the pushing blocks and the upper end walls of the pushing grooves.

The lifting device comprises a threaded hole with a downward opening, a power motor is fixedly arranged on the upper end wall of the threaded hole, a spline shaft is dynamically mounted at the lower end of the power motor, the spline shaft is mounted on the spline shaft, and the threaded shaft is in threaded fit with the threaded hole.

The invention has the beneficial effects that: the device is provided with the extrusion turntable, the extrusion turntable is adjusted to rotate according to the actually required extrusion molding shape, the extrusion head is communicated and corresponds to the connecting pipe, the circulation state of the raw materials in the connecting pipe is controlled through the sealing device, the raw materials are conveyed downwards and output through the extrusion head, the extrusion shape of the device is flexible and adjustable, the application range is wide, the excess materials in the material cavity can be detected through the excess material monitoring device, and workers are warned to add the excess materials or stop the device in time, the device is high in automation degree, and the device is suitable for 3D printing work of different types and shapes.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of an extrusion molding head of a 3D printer according to the present invention;

FIG. 2 is an enlarged schematic view of "A" of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 2;

FIG. 4 is an enlarged view of the structure of "C" of FIG. 1;

fig. 5 is an enlarged view of the structure "D" of fig. 4.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an extrusion molding machine head on a 3D printer, which is mainly used for 3D work, and the invention is further explained by combining the attached drawings of the invention:

the extrusion molding machine head on the 3D printer comprises a machine body 21, wherein a material cavity 22 is arranged in the machine body 21, a horizontally arranged cross rod 23 is fixedly arranged in the material cavity 22, a driving motor 24 is fixedly arranged in the cross rod 23, a first rotating shaft 30 is dynamically installed at the lower end of the driving motor 24, a first rotating sheet 31 is fixedly wound on the first rotating shaft 30, a second rotating shaft 32 is fixedly arranged at the lower end of the first rotating shaft 30, a second rotating sheet 33 is fixedly wound on the second rotating shaft 32, when the driving motor 24 works, the first rotating sheet 31 and the second rotating sheet 33 are driven to rotate to convey raw materials downwards, a residual material monitoring device 90 is arranged on the right side of the material cavity 22, the residual material monitoring device 90 is used for detecting residual raw materials in the material cavity 22, a connecting pipe 40 is communicated with the lower side of the material cavity 22, and a sealing device 89 is arranged in the connecting pipe 40, the sealing device 89 comprises two sealing plates 63 which are symmetrical left and right, the sealing plates 63 can seal and block the falling of the raw materials in the connecting pipe 40 after being connected, the right side of the connecting pipe 40 is provided with a lifting device 88, the lifting device 88 comprises a threaded shaft 73, a rotating motor 74 is fixedly arranged at the lower end of the threaded shaft 73, a rotating shaft 75 is dynamically arranged at the lower end of the rotating motor 74, the lower end of the rotating shaft 75 is fixedly provided with an extrusion turntable 76, the extrusion turntable 76 and the threaded shaft 73 are rotatably arranged through a bearing, six flow holes 77 which penetrate through the extrusion turntable 76 from top to bottom are arranged in an annular array in the extrusion turntable 76, six extrusion heads 78 corresponding to the flow holes 77 are fixedly arranged at the lower end of the extrusion turntable 76, so that the extrusion turntable 76 rotates when the rotating motor 74 works, the position of the extrusion head 78 required for adjusting the extrusion shape of the raw material according to actual requirements corresponds to the position of the connection pipe 40.

Advantageously, the cross-sectional size of the connection pipe 40 is equal to the cross-sectional size of the flow hole 77, so that the lower end of the connection pipe 40 can be inserted into the flow hole 77.

According to the embodiment, the following detailed description will be made on the remainder monitoring device 90, the remainder monitoring device 90 includes a rotating groove 80, a rotating shaft 81 with a left end extending into the material cavity 22 is rotatably disposed in the rotating groove 80, a warning light 82 is fixedly disposed at a right end of the rotating shaft 81 extending to the outside, a pressure spring 85 is fixedly disposed between an upper end of the rotating shaft 81 and the rotating groove 80, an energizing block 10 electrically connected to the warning light 82 is fixedly disposed at a lower end of the rotating shaft 81, a centrifugal cavity 11 is communicatively disposed at a lower side of the rotating groove 80, a sliding plate 17 is slidably disposed in the centrifugal cavity 11, an abutting block 18 electrically abutted to the abutting block 18 is fixedly disposed at an upper end surface of the sliding plate 17, a centrifugal disc 13 is rotatably disposed in the centrifugal cavity 11 through a centrifugal rotating shaft 12, vertically symmetrical centrifugal chutes 14 are disposed in the centrifugal disc 13, centrifugal sliders 16 are slidably disposed in the centrifugal chutes 14, an extrusion spring 15 is fixedly arranged between one end, close to the centrifugal rotating shaft 12, of the centrifugal slider 16 and the centrifugal chute 14, a transmission cavity 19 is arranged on the left side of the centrifugal cavity 11, a first bevel gear 20 is fixedly arranged in the transmission cavity 19 and extends to the left end of the centrifugal rotating shaft 12, a second bevel gear 26 is meshed with the lower side of the first bevel gear 20, a gear rotating shaft 27 is fixedly arranged at the center of the second bevel gear 26, and the gear rotating shaft 27 is in power connection with the first bevel gear 30 through a transmission belt 25.

Advantageously, the left end wall of the centrifugal chamber 11 is provided with a guide sliding groove 28 in communication, the left end of the sliding plate 17 extends into the guide sliding groove 28, a return spring 29 is fixedly arranged between the lower end wall of the guide sliding groove 28 and the sliding plate 17, and the guide sliding groove 28 has a guide limiting effect on the sliding of the sliding plate 17.

According to an embodiment, the sealing device 89 is described in detail below, the sealing device 89 includes two sliding grooves 45 that are bilaterally symmetric, sliding blocks 60 are respectively slidably disposed in the sliding grooves 45, a sealing plate 63 is rotatably mounted in the sliding blocks 60 through a sealing rotating shaft 62, a torsion spring 61 is fixedly disposed on the sealing rotating shaft 62, one end of the torsion spring 61, which is far away from the sealing rotating shaft 62, is fixedly connected with the sliding blocks 60, a fixing rod 44 is fixedly disposed on an upper end surface of the sliding blocks 60, a pushing groove 41 is disposed on an upper side of the sliding grooves 45, a pushing block 43 is slidably disposed in the pushing groove 41, a lower end of the pushing block 43 is fixedly connected with an upper end of the fixing rod 44, and a telescopic spring 42 is fixedly disposed between an upper end of the pushing block 43 and an upper.

According to an embodiment, the lifting device 88 is described in detail below, the lifting device 88 includes a threaded hole 70 with a downward opening, a power motor 71 is fixedly arranged on an upper end wall of the threaded hole 70, a spline shaft 72 is dynamically arranged at a lower end of the power motor 71, the threaded shaft 73 is spline-mounted on the spline shaft 72, and the threaded shaft 73 is in threaded fit with the threaded hole 70.

The following describes in detail the use steps of an extrusion head on a 3D printer in the present document with reference to fig. 1 to 5:

initially, the rotation shaft 81 is horizontally placed, the pressing spring 15, the return spring 29, and the pressure spring 85 are in a natural state, the energizing block 10 is not in contact with the abutment block 18, the left and right sealing plates 63 abut against each other to seal the fixing rod 44, and the torsion spring 61 is in a compressed and power-storing state.

During operation, according to the actual required printing shape, the position of the corresponding extrusion head 78 is adjusted, the rotating motor 74 is started to drive the rotating shaft 75 to rotate, so that the extrusion turntable 76 rotates, and the corresponding extrusion head 78 is rotated to correspond to the position of the connecting pipe 40;

starting the power motor 71 to drive the spline shaft 72 to rotate, so that the threaded shaft 73 moves upwards, at the moment, the threaded shaft 73 drives the extrusion turntable 76 to ascend, the extrusion turntable 76 pushes the push block 43 to ascend, the fixed rod 44 drives the sliding block 60 to slide upwards in the sliding groove 45, the sealing plate 63 rotates downwards under the action of the elastic restoring force of the torsion spring 61, the connecting pipe 40 is opened by the sealing plate 63, and at the moment, the lower end of the connecting pipe 40 is inserted into the circulation hole 77;

then, adding raw materials required by 3D printing into the material cavity 22, starting the driving motor 24 to drive the first rotor plate 31 and the second rotor plate 33 to rotate, conveying the raw materials downwards, conveying the raw materials into the extrusion head 78 through the circulation hole 77, extruding and using the raw materials through the extrusion head 78, pressing the rotating shaft 81 to rotate anticlockwise when the raw materials are conveyed downwards, at this time, the warning light 82 does not work, driving the gear rotating shaft 27 to rotate through the transmission belt 25 during the operation of the driving motor 24, rotating the centrifugal disc 13 through the transmission of the second bevel gear 26 and the first bevel gear 20, moving the centrifugal slider 16 to one side far away from the centrifugal rotating shaft 12 under the action of centrifugal force, then the centrifugal slider 16 pushes the sliding plate 17 to slide upwards to enable the abutting block 18 to ascend, when the raw materials in the material cavity 22 are used to the lower side position of the rotating shaft 81, the rotating shaft 81 rotates clockwise under the elastic restoring force of the pressure spring 85, the rotating shaft 81 returns to the horizontal state, and the energizing block 10 contacts the abutting block 18, so that the warning lamp 82 is turned on to indicate the material shortage.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides an extrusion moulding aircraft nose on 3D printer, includes the organism, its characterized in that: a material cavity is arranged in the machine body;

a horizontally arranged cross rod is fixedly arranged in the material cavity, a driving motor is fixedly arranged in the cross rod, a first rotating shaft is dynamically installed at the lower end of the driving motor, a first rotating sheet is fixedly wound on the first rotating shaft, a second rotating shaft is fixedly arranged at the lower end of the first rotating shaft, a second rotating sheet is fixedly wound on the second rotating shaft, the driving motor drives the first rotating sheet and the second rotating sheet to rotate to convey the raw materials downwards when working, a surplus material monitoring device is arranged on the right side of the material cavity and used for detecting surplus materials in the material cavity, a connecting pipe is communicated with the lower side of the material cavity, a sealing device is arranged in the connecting pipe and comprises two sealing plates which are bilaterally symmetrical, and the sealing plates can seal and block the raw materials in the connecting pipe after being connected;

the connecting pipe right side is equipped with elevating gear, elevating gear includes the screw thread axle, the screw thread axle lower extreme has set firmly rotates the motor, it has the axis of rotation to rotate motor lower extreme power installation, the axis of rotation lower extreme has set firmly and extrudes the carousel, extrude the carousel with the screw thread axle passes through the bearing and rotates the installation, it is provided with six circulation holes that run through from top to bottom to extrude the interior annular array of carousel, extrude the carousel lower extreme have set firmly six with the head is extruded that circulation hole position corresponds, thereby rotate motor work, make it rotates to extrude the carousel, extrudes the shape according to the raw materials of actual demand and adjusts required extrude the head with the connecting pipe position corresponds.

2. An extrusion head for a 3D printer as in claim 1, wherein: the cross section of the connecting pipe is equal to the cross section of the flow hole in size.

3. An extrusion head for a 3D printer as in claim 1, wherein: the excess material monitoring device comprises a rotary groove;

a rotating shaft with the left end extending into the material cavity is rotatably arranged in the rotating groove, a warning lamp is fixedly arranged at the right end of the rotating shaft extending to the outside, a pressure spring is fixedly arranged between the upper end of the rotating shaft and the rotating groove, and an electrifying block electrically connected with the warning lamp is fixedly arranged at the lower end of the rotating shaft;

the centrifugal mechanism is characterized in that a centrifugal cavity is formed in the lower side of the rotary groove in a communicated mode, a sliding plate is arranged in the centrifugal cavity in a sliding mode, a butt block which is connected with the butt block in an electrified mode is fixedly arranged on the upper end face of the sliding plate, a centrifugal disc is arranged in the centrifugal cavity in a rotating mode through a centrifugal rotating shaft, vertically symmetrical centrifugal sliding grooves are formed in the centrifugal disc, a centrifugal sliding block is arranged in the centrifugal sliding grooves in a sliding mode, the centrifugal sliding block is close to one end of the centrifugal rotating shaft, an extrusion spring is fixedly arranged between the centrifugal sliding grooves, a transmission cavity is formed in the left side of the centrifugal cavity, the left end of the centrifugal rotating shaft extends to a position, a first bevel gear is fixedly arranged in the transmission cavity, a second bevel gear is meshed with the lower side of.

4. An extrusion head for a 3D printer as in claim 3, wherein: the centrifugal cavity left end wall is communicated with and is provided with a guide chute, the left end of the sliding plate extends into the guide chute, and a return spring is fixedly arranged between the lower end wall of the guide chute and the sliding plate.

5. An extrusion head for a 3D printer as in claim 1, wherein: the sealing device comprises two sliding grooves which are symmetrical left and right;

the sliding block is arranged in each sliding groove in a sliding mode, the sealing plate is rotatably installed in the sliding block through a sealing rotating shaft, a torsion spring is fixedly arranged on the sealing rotating shaft, one end, far away from the sealing rotating shaft, of the torsion spring is fixedly connected with the sliding block, a fixing rod is fixedly arranged on the upper end face of the sliding block, a pushing groove is formed in the upper side of the sliding groove, a pushing block is arranged in the pushing groove in a sliding mode, the lower end of the pushing block is fixedly connected with the upper end of the fixing rod, and a telescopic spring is fixedly arranged between the upper end of the pushing block and the upper.

6. An extrusion head for a 3D printer as in claim 1, wherein: the lifting device comprises a threaded hole with a downward opening; the power motor is fixedly arranged on the upper end wall of the threaded hole, a spline shaft is dynamically mounted at the lower end of the power motor, the thread shaft spline is mounted on the spline shaft, and the thread shaft is in thread fit with the threaded hole.