CN112959660A - 3D beats printer head and 3D printer - Google Patents
3D beats printer head and 3D printer Download PDFInfo
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- CN112959660A CN112959660A CN202110148095.1A CN202110148095A CN112959660A CN 112959660 A CN112959660 A CN 112959660A CN 202110148095 A CN202110148095 A CN 202110148095A CN 112959660 A CN112959660 A CN 112959660A
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- cavity
- contact plate
- feeding pipe
- steel rope
- group
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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- 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
Abstract
The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing head and a 3D printer, which comprise a feeding pipe, a nozzle, a dredging unit and a controller; the dredging unit comprises a positive and negative rotation motor, an annular shell, a group of guide rods, a group of composite gears, a group of bevel gears, a group of first steel ropes, a group of spherical blocks, an annular steel plate and an elastic contact plate; when the positive and negative motor during operation, the output shaft of positive and negative motor drives compound gear through the pivot and rotates, helical gear and bevel gear meshing transmission on the compound gear, bevel gear takes place to rotate, install No. one steel cable tightening up in bevel gear's the pivot, No. one steel cable pulling spherical piece is to the direction motion of keeping away from the shower nozzle, spherical piece enters into No. two cavities from No. three cavities, extrude the one side of keeping away from annular shell in No. two cavities for the contact plate extrudees the material in the feeder tube, avoid the material to take place to block up in the feeder tube.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing head and a 3D printer.
Background
3D printing is one of rapid prototyping technologies, which constructs a zero object by using a bondable material such as powdered metal or plastic and by a multi-layer printing mode of one layer after another. Mold making, industrial design for building models, is now evolving into product making, resulting in "direct digital manufacturing". Some high value applications (e.g. hip joints or teeth, or aircraft parts) have already emerged with printed parts. "3D printing" means the popularization of this technology. The general analysis reason that 3D print head blockked up is that the consumptive material problem arouses on the one hand: the nozzle is blocked due to the problems of uneven quality of consumables of different manufacturers, uneven wire drawing after heating of consumables, abnormal solidification, impurity content and the like; on the other hand, improper operation in daily use causes: when the material is replaced by a person, the feeding gear or the feeding throat pipe is subjected to irregular operation, so that residual broken wires are left at the position from the feeding gear or the feeding throat pipe to the spray head, the broken wires cannot be extruded normally, and the spray head is blocked.
The prior art also discloses a technical scheme of a printing head and a 3D printer, for example, a chinese patent with application number CN201920940605 discloses a printing head and a 3D printer, which includes a printing head body for mounting the printing head and a fixing base, the fixing base is provided with a driving mechanism, an output end of the driving mechanism is connected with a stopping table in a rotation stopping manner, a side wall of the printing head body is provided with a stopping groove matched with the stopping table in shape, the stopping table is provided with a first rotating position penetrating through the stopping groove, and the stopping table is further provided with a second rotating position located in the printing head body and stopped at the side wall of the printing head body; the printhead further comprises positioning means for positioning the printhead body. However, the technical scheme has the defects that the 3D printer can accurately position the printing head, poor product precision caused by inaccurate positioning of the printing head is avoided, the printing head is stably connected to avoid falling off when running at a high speed, but the problem that the 3D printing head is easy to block cannot be solved, so that the 3D printing head is easy to block, and the service life and the working efficiency of the 3D printing head are influenced;
in view of this, by providing a dredging unit and a controller; when the positive and negative motor during operation, the output shaft of positive and negative motor drives composite gear through the pivot and rotates, composite gear and bevel gear meshing transmission, bevel gear takes place to rotate, install No. one steel cable on bevel gear's the pivot and tighten up, No. one steel cable pulling spherical piece is to the direction motion of keeping away from the shower nozzle, spherical piece enters into No. two cavities from No. three cavities, extrude the one side of keeping away from annular shell in No. two cavities, because the contact plate keeps away from one side smooth surface of annular shell, and the contact plate is elasticity, make the contact plate extrude the material in the conveying pipe, avoid the material to take place to block up in the conveying pipe.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that a 3D printing head is easy to block and the service life and the working efficiency of the 3D printing head are affected, the invention provides the 3D printing head and a 3D printer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the 3D printing head comprises a feeding pipe and a nozzle; the end part of the feeding pipe is fixedly connected with the spray head, and one end of the spray head extends into the feeding pipe to be tightly contacted with the inner wall of the feeding pipe; the device also comprises a dredging unit and a controller; the controller is used for controlling the 3D printing head to work; the dredging unit comprises a positive and negative rotation motor, an annular shell, a group of guide rods, a group of composite gears, a group of bevel gears, a group of first steel ropes, a group of spherical blocks, a positioning plate and an elastic contact plate; the annular shell is arranged on the feeding pipe, and the surface of an inner ring of the annular shell is fixedly connected with the surface of an outer ring of the feeding pipe; a sliding groove and a group of first cavities are formed in the annular shell, and the first cavities are communicated with the sliding groove; each guide rod is arc-shaped, spiral teeth are uniformly arranged on the guide rods, and the guide rods are slidably arranged in the sliding grooves; each composite gear consists of a straight gear and a helical gear, the composite gears are arranged on the inner wall of one side, close to the spray head, in the first cavity through rotating shafts, the straight gears on the composite gears are meshed and connected with helical teeth on the guide rod, and the rotating shaft of one composite gear penetrates through the inner wall of one side, close to the spray head, in the first cavity and is fixedly connected with an output shaft of a forward and reverse rotating motor; the forward and reverse rotating motor is arranged on the outer wall of the feeding pipe; each bevel gear is arranged on the inner wall of the first cavity, which is radially overlapped with the annular shell, through a rotating shaft, and the bevel gears are vertically meshed with the bevel gears on the composite gear; the positioning plate is arranged on the inner wall of one side of the feeding pipe, which is far away from the spray head, and is used for realizing the accurate positioning of the contact plate arranged in the feeding pipe; the contact plate is arranged on the inner wall of the feed pipe, one end of the contact plate, which is close to the spray head, is fixedly connected with one end of the spray head, which extends into the feed pipe, and the other end of the contact plate is fixedly connected with one end, which is close to the spray head, of the positioning plate; a second cavity and a third cavity are formed in the contact plate; the second cavity is communicated with the third cavity, the second cavity is positioned at one side, far away from the sprayer, in the contact plate, the third cavity is positioned at one side, close to the sprayer, in the contact plate, and the diameter of the third cavity is larger than that of the second cavity; each spherical block is fixedly connected to one side, close to the spray head, in the third cavity through a spring, and the diameter of each spherical block is larger than that of the second cavity and smaller than that of the third cavity; one end of each first steel rope is fixedly connected with the spherical block, and the other end of each first steel rope is arranged on a rotating shaft of the bevel gear;
the 3D printer can accurately position the printing head, avoids poor product precision caused by inaccurate positioning of the printing head, is stably connected, avoids falling off of the printing head during high-speed operation, cannot solve the problem that the 3D printing head is easy to block, enables the 3D printing head to be easy to block, and influences the service life and the working efficiency of the 3D printing head;
the invention arranges the dredging unit and the controller; when the positive and negative rotation motor works, an output shaft of the positive and negative rotation motor drives the composite gear to rotate through the rotating shaft, a bevel gear on the composite gear is in meshing transmission with the bevel gear, the bevel gear rotates, a first steel rope arranged on the rotating shaft of the bevel gear is tightened, the first steel rope pulls the spherical block to move in the direction away from the spray head, the spherical block enters a second cavity from a third cavity and extrudes one side, away from the annular shell, of the second cavity, and the contact plate is smooth in the surface of one side, away from the annular shell, of the contact plate and elastic, so that the contact plate extrudes materials in the feeding pipe, the materials are prevented from being blocked in the feeding pipe, meanwhile, a straight gear on the composite gear is in meshing transmission with spiral teeth on the guide rod, the guide rod moves in the sliding groove, and the transmission of; the composite gear and the bevel gear are driven to rotate through the operation of the forward and reverse rotating motor, so that the first steel rope is tightened and loosened, the spherical block moves in the second cavity, the contact plate extrudes materials in the feeding pipe, and the aim of avoiding blockage is fulfilled; when the forward and reverse rotating motor rotates reversely, the tail part of the guide rod pushes the end part of the adjacent guide rod to reset, so that the transmission of the motion of each part of the dredging unit is realized.
Preferably, a section of idle stroke is arranged between the adjacent guide rods in the sliding groove;
when the device works, a section of idle stroke is arranged between the adjacent guide rods in the sliding groove; when the positive and negative rotation motor drives the composite gear to rotate, the straight gear on the composite gear is in meshing transmission with the spiral teeth on the guide rod, the guide rod slides in the sliding groove, and as a section of idle stroke is arranged between adjacent guide rods in the sliding groove, when the guide rod contacts with the adjacent guide rod, the first steel rope pulls the spherical block to reach the highest point in the second cavity; a section of idle stroke is arranged between the adjacent guide rods in the sliding groove, so that time difference exists between the adjacent guide rods and the first steel rope, when the adjacent guide rods are in contact, the adjacent spherical blocks are respectively located at the highest point and the lowest point in the second cavity, the staggered movement of the spherical blocks is realized, and the blockage of the 3D printing head is further avoided.
Preferably, a second steel rope is connected between the adjacent spherical blocks; the second steel rope is positioned in the second cavity, and the length of the second steel rope is equal to the distance between the highest point spherical block and the adjacent lowest point spherical block; a group of first salient points are uniformly arranged on the inner wall of one side of the second cavity far away from the annular shell and in the area between the adjacent spherical blocks;
when the device works, a second steel rope is connected between the adjacent spherical blocks; when a wire rope pulls the spherical block to move in No. two cavities, because when adjacent guide arm contact, adjacent spherical block is located the highest point and the minimum in No. two cavities respectively, the length of No. two steel cables equals the distance between the spherical block of highest point and the spherical block of adjacent minimum, No. two steel cables are the state of tightening this moment, No. two No. one bump on the steel cable extrusion contact board, make the contact board take place bigger deformation, it takes place small deformation to have eliminated the contact board, can't effectively extrude the material in the conveying pipe, lead to taking place the problem of jam easily, thereby realized further avoiding 3D to beat the purpose that the printer head blockked up.
Preferably, the joint of the second cavity and the third cavity adopts an arc structure;
when the device works, the connecting part of the second cavity and the third cavity adopts an arc-shaped structure; when a steel rope pulls the spherical block to move in the second cavity, the arc-shaped structure is adopted at the joint of the second cavity and the third cavity, so that the spherical block and the first steel rope enter the second cavity from the third cavity, the problem that the joint of the second cavity and the third cavity abrades the spherical block and the first steel rope to influence the working effect of the dredging unit is solved, the service life of the dredging unit is prolonged, and the purpose of blocking the 3D printing head is further avoided.
Preferably, a groove is formed in one side, away from the annular shell, of the second cavity in the contact plate, and an elastic net is installed in the groove;
when the contact plate works, a groove is formed in one side, away from the annular shell, of the second cavity in the contact plate, and an elastic net is arranged in the groove; when spherical piece extrusion contact board or a steel cable extrusion contact board on a bump, the contact board takes place deformation, through installation elastic network in the contact board for the contact board resets more easily, has eliminated the contact board and has frequently taken place deformation, makes the contact board structure take place to damage, reduces the problem of contact board result of use, thereby has increased the elasticity of contact board, has further avoided 3D to beat the jam of printer head.
Preferably, a group of second salient points are uniformly arranged on the second steel rope; the spherical block drives the second steel rope to move, so that the second salient points on the second steel rope extrude the first salient points, and the extrusion effect of the steel rope on the first salient points is improved;
when the wire rope winding device works, a group of No. two salient points are uniformly arranged on the No. two steel ropes; when a steel rope drives the spherical block to move, the spherical block drives a second steel rope to move in a second cavity, and a second salient point on the second steel rope extrudes a salient point on the contact plate, so that the contact plate is deformed more, the contact plate is eliminated from being deformed slightly, the material in the feeding pipe cannot be effectively extruded, the problem of blockage is caused easily, and the blockage of the 3D printing head is further avoided.
The 3D printer comprises the 3D printing head; the end part of the 3D printing head feeding pipe is fixedly connected with the 3D printer through a guide sleeve, positioning grooves are uniformly formed in the guide sleeve, and positioning pins are arranged in the positioning grooves;
when the device works, the end part of the 3D printing head feeding pipe is provided with the guide sleeve, the guide sleeve is uniformly provided with the positioning groove, and the positioning pin is arranged in the positioning groove; guide pin bushing and locating pin are used for fixing a position 3D and beat printer head and 3D printer coupling part's positional relation and the positional relation of locating plate and conveying pipe, simultaneously for 3D beats printer head and stabilizes and install on the 3D printer, has promoted the stability of 3D printer and the accuracy that 3D beaten printer head work.
The invention has the following beneficial effects:
1. according to the 3D printing head and the 3D printer, the dredging unit and the controller are arranged; when the positive and negative motor during operation, the output shaft of positive and negative motor drives compound gear through the pivot and rotates, helical gear and the bevel gear meshing transmission on the compound gear, bevel gear takes place to rotate, install No. one steel cable on bevel gear's the pivot and tighten up, No. one steel cable pulling spherical piece is to the direction motion of keeping away from the shower nozzle, spherical piece enters into No. two cavities from No. three cavities, extrude the one side of keeping away from the annular shell in No. two cavities, because the contact plate keeps away from the smooth surface of one side of annular shell, and the contact plate is elasticity, make the contact plate extrude the material in the conveying pipe, avoid the material to take place to block up in the.
2. According to the 3D printing head and the 3D printer, the second steel rope is connected between the adjacent spherical blocks; when the first steel rope pulls the spherical block to move in the second cavity, because when the adjacent guide rods are contacted, the adjacent spherical blocks are respectively positioned at the highest point and the lowest point in the second cavity, the length of the second steel rope is equal to the distance between the spherical block at the highest point and the spherical block at the adjacent lowest point, the second steel rope is in a tightened state, and the second steel rope extrudes the first salient point on the contact plate, so that the contact plate is deformed greatly, and the aim of further avoiding the 3D printing head from being blocked is fulfilled.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
FIG. 5 is an enlarged view of a portion of FIG. 1 at D;
FIG. 6 is an enlarged view of a portion of FIG. 2 at E;
FIG. 7 is an enlarged view of a portion of FIG. 3 at F;
in the figure: the device comprises a feeding pipe 1, a spray head 2, a dredging unit 3, a forward and reverse rotating motor 31, an annular shell 32, a sliding groove 321, a first cavity 322, a guide rod 33, a composite gear 34, a bevel gear 35, a first steel rope 36, a spherical block 37, a positioning plate 38, a contact plate 39, a second cavity 391, a third cavity 392, a first salient point 393, a second steel rope 4, a second salient point 41, an elastic net 5, a guide sleeve 6 and a positioning pin 61.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the 3D print head according to the present invention includes a feeding tube 1 and a nozzle 2; the end part of the feeding pipe 1 is fixedly connected with the spray head 2, and one end of the spray head 2 extends into the feeding pipe 1 to be tightly contacted with the inner wall of the feeding pipe 1; the dredging device also comprises a dredging unit 3 and a controller; the controller is used for controlling the 3D printing head to work; the dredging unit 3 comprises a forward and reverse rotating motor 31, an annular shell 32, a group of guide rods 33, a group of composite gears 34, a group of bevel gears 35, a group of first steel ropes 36, a group of spherical blocks 37, a positioning plate 38 and an elastic contact plate 39; the annular shell 32 is arranged on the feeding pipe 1, and the inner ring surface of the annular shell 32 is fixedly connected with the outer ring surface of the feeding pipe 1; a sliding groove 321 and a group of first cavities 322 are formed in the annular shell 32, and the first cavities 322 are communicated with the sliding groove 321; each guide rod 33 is arc-shaped, spiral teeth are uniformly arranged on the guide rods 33, and the guide rods 33 are slidably arranged in the sliding grooves 321; each composite gear 34 consists of a straight gear and a helical gear, the composite gears 34 are arranged on the inner wall of one side, close to the spray head 2, in the first cavity 322 through rotating shafts, the straight gears on the composite gears 34 are meshed and connected with helical teeth on the guide rod 33, and the rotating shaft of one composite gear 34 penetrates through the inner wall of one side, close to the spray head 2, in the first cavity 322 and is fixedly connected with an output shaft of the forward and reverse rotation motor 31; the forward and reverse rotating motor 31 is arranged on the outer wall of the feeding pipe 1; each bevel gear 35 is installed on the inner wall of the first cavity 322, which is radially overlapped with the annular shell 32, through a rotating shaft, and the bevel gears 35 are vertically meshed with the bevel gears on the compound gear 34; the positioning plate 38 is arranged on the inner wall of the feeding pipe 1 far away from the spray head 2 and used for realizing the accurate positioning of the contact plate 39 arranged in the feeding pipe 1; the contact plate 39 is arranged on the inner wall of the feeding pipe 1, one end of the contact plate 39 close to the spray head 2 is fixedly connected with one end of the spray head 2 extending into the feeding pipe 1, and the other end of the contact plate 39 is fixedly connected with one end of the positioning plate 38 close to the spray head 2; a second cavity 391 and a third cavity 392 are formed in the contact plate 39; the second cavity 391 is communicated with the third cavity 392, the second cavity 391 is positioned at one side, far away from the sprayer head 2, in the contact plate 39, the third cavity 392 is positioned at one side, close to the sprayer head 2, in the contact plate 39, and the diameter of the third cavity 392 is larger than that of the second cavity 391; each spherical block 37 is fixedly connected to one side of the third cavity 392 close to the spray head 2 through a spring, and the diameter of the spherical block 37 is larger than that of the second cavity 391 and smaller than that of the third cavity 392; one end of each first steel rope 36 is fixedly connected with the spherical block 37, and the other end of each first steel rope is arranged on a rotating shaft of the bevel gear 35;
the 3D printer can accurately position the printing head, avoids poor product precision caused by inaccurate positioning of the printing head, is stably connected, avoids falling off of the printing head during high-speed operation, cannot solve the problem that the 3D printing head is easy to block, enables the 3D printing head to be easy to block, and influences the service life and the working efficiency of the 3D printing head;
the invention arranges a dredging unit 3 and a controller; when the forward and reverse rotation motor 31 works, the output shaft of the forward and reverse rotation motor 31 drives the composite gear 34 to rotate through the rotating shaft, the bevel gear on the composite gear 34 is in meshing transmission with the bevel gear 35, the bevel gear 35 rotates, the first steel rope 36 arranged on the rotating shaft of the bevel gear 35 is tightened, the first steel rope 36 pulls the spherical block 37 to move in the direction away from the spray head 2, the spherical block 37 enters the second cavity 391 from the third cavity 392 and extrudes one side of the second cavity 391 far away from the annular shell 32, because the side surface of the contact plate 39 far away from the annular shell 32 is smooth and the contact plate 39 is elastic, the contact plate 39 extrudes the material in the feed pipe 1 to avoid the material from being blocked in the feed pipe 1, meanwhile, the straight gear on the composite gear 34 is in meshing transmission with the spiral teeth on the composite gear 33, the guide rods 33 move in the sliding grooves 321 and are pushed by the, the conduction of the movement of each part of the dredging unit 3 is realized; the composite gear 34 and the bevel gear 35 are driven to rotate through the operation of the forward and reverse rotation motor 31, so that the first steel rope 36 is tightened and loosened, the spherical block 37 moves in the second cavity 391, the purpose that the contact plate 39 extrudes materials in the feeding pipe 1 to avoid blockage is realized, meanwhile, through the meshing transmission of the straight gear on the composite gear 34 and the spiral teeth on the guide rod 33, when the forward and reverse rotation motor 31 rotates forwards, the end part of the guide rod 33 pushes the tail part of the adjacent guide rod 33 to move; when the forward and reverse rotation motor 31 rotates reversely, the tail part of the guide rod 33 pushes the end part of the adjacent guide rod 33 to reset, and the conduction of the movement of each part of the dredging unit 3 is realized.
As a specific embodiment of the present invention, a space is provided between adjacent guide rods 33 in the sliding groove 321;
when the invention works, a section of idle stroke is arranged between the adjacent guide rods 33 in the sliding groove 321; when the forward and reverse rotation motor 31 drives the compound gear 34 to rotate, the straight gear on the compound gear 34 is in meshing transmission with the spiral teeth on the guide rod 33, the guide rod 33 slides in the sliding groove 321, and as a section of idle stroke is arranged between adjacent guide rods 33 in the sliding groove 321, when the guide rods 33 contact the adjacent guide rods 33, the first steel rope 36 already pulls the spherical block 37 to reach the highest point in the second cavity 391; a section of idle stroke is arranged between the adjacent guide rods 33 in the sliding groove 321, so that a time difference exists between the adjacent guide rods 33 and the first steel rope 36, when the adjacent guide rods 33 are contacted, the adjacent spherical blocks 37 are respectively positioned at the highest point and the lowest point in the second cavity 391, the staggered movement of the spherical blocks 37 is realized, and the blockage of the 3D printing head is further avoided.
As a specific embodiment of the present invention, a second steel cable 4 is connected between adjacent spherical blocks 37; the second steel rope 4 is positioned in the second cavity 391, and the length of the second steel rope 4 is equal to the distance between the highest point spherical block 37 and the adjacent lowest point spherical block 37; a group of first salient points 393 are uniformly arranged on the inner wall of one side of the second cavity 391 far away from the annular shell 32 and the area between the adjacent spherical blocks 37;
when the device works, a second steel rope 4 is connected between the adjacent spherical blocks 37; when the first steel rope 36 pulls the spherical blocks 37 to move in the second cavity 391, because when the adjacent guide rods 33 are contacted, the adjacent spherical blocks 37 are respectively located at the highest point and the lowest point in the second cavity 391, the length of the second steel rope 4 is equal to the distance between the highest point spherical block 37 and the adjacent lowest point spherical block 37, at this moment, the second steel rope 4 is in a tightened state, and the second steel rope 4 extrudes the first salient point on the contact plate 39, so that the contact plate 39 is deformed greatly, the micro deformation of the contact plate 39 is eliminated, the material in the feeding pipe 1 cannot be effectively extruded, and the problem of easy blockage is caused, and the purpose of further avoiding the blockage of the 3D printing head is realized.
As a specific embodiment of the present invention, an arc-shaped structure is adopted at the connection between the second cavity 391 and the third cavity 392;
when the device works, an arc-shaped structure is adopted at the joint of the second cavity 391 and the third cavity 392; when the first steel rope 36 pulls the spherical block 37 to move in the second cavity 391, as the arc-shaped structure is adopted at the joint of the second cavity 391 and the third cavity 392, the spherical block 37 and the first steel rope 36 can conveniently enter the second cavity 391 from the third cavity 392, and the problem that the joint of the second cavity 391 and the third cavity 392 abrades the spherical block 37 and the first steel rope 36 to influence the working effect of the dredging unit 3 is solved, so that the service life of the dredging unit 3 is prolonged, and the purpose of blocking a 3D printing head is further avoided.
As a specific embodiment of the present invention, a groove is formed in a side of the second cavity 391 in the contact plate 39, which is away from the annular housing 32, and the elastic net 5 is installed in the groove;
when the contact plate is in work, a groove is formed in one side, away from the annular shell 32, of the second cavity 391 in the contact plate 39, and the elastic net 5 is installed in the groove; when the spherical block 37 extrudes the contact plate 39 or the steel wire rope 36 extrudes the first salient point 393 on the contact plate 39, the contact plate 39 deforms, the elastic net 5 is installed in the contact plate 39, so that the contact plate 39 is easier to reset, the frequent deformation of the contact plate 39 is eliminated, the structure of the contact plate 39 is damaged, the use effect of the contact plate 39 is reduced, the elasticity of the contact plate 39 is increased, and the blockage of the 3D printing head is further avoided.
As a specific embodiment of the present invention, a set of second salient points 41 are uniformly arranged on the second steel rope 4; the spherical block 37 drives the second steel rope 4 to move, so that the second salient points 41 on the second steel rope 4 extrude the first salient points 393, and the extrusion effect of the steel rope on the first salient points 393 is improved;
when the wire rope winding device works, a group of No. two salient points 41 are uniformly arranged on the No. two steel ropes 4; when the first steel rope 36 drives the spherical block 37 to move, the spherical block 37 drives the second steel rope 4 to move in the second cavity 391, and the second salient point 41 on the second steel rope 4 extrudes the first salient point 393 on the contact plate 39, so that the contact plate 39 is deformed more greatly, the contact plate 39 is eliminated from micro deformation, the material in the feeding pipe 1 cannot be effectively extruded, the problem of easy blockage is caused, and the blockage of the 3D printing head is further avoided.
The 3D printer comprises the 3D printing head; the end part of the 3D printing head feeding pipe 1 is fixedly connected with a 3D printer through a guide sleeve 6, positioning grooves are uniformly formed in the guide sleeve 6, and positioning pins 61 are installed in the positioning grooves;
when the device works, the end part of the 3D printing head feeding pipe 1 is provided with the guide sleeve 6, the guide sleeve 6 is uniformly provided with the positioning groove, and the positioning pin 61 is arranged in the positioning groove; guide pin bushing 6 and locating pin 61 are used for fixing a position 3D and beat printer head and 3D printer coupling part's positional relation and the positional relation of location locating plate 38 and conveying pipe 1, simultaneously for 3D beats printer head and firmly installs on the 3D printer, has promoted the stability of 3D printer and the accuracy that 3D beats printer head work.
When the positive and negative rotation motor 31 works, the output shaft of the positive and negative rotation motor 31 drives the composite gear 34 to rotate through the rotating shaft, the bevel gear on the composite gear 34 is in meshing transmission with the bevel gear 35, the bevel gear 35 rotates, the first steel rope 36 arranged on the rotating shaft of the bevel gear 35 is tightened, the first steel rope 36 pulls the spherical block 37 to move in the direction away from the spray head 2, the spherical block 37 enters the second cavity 391 from the third cavity 392 and extrudes one side of the second cavity 391 far away from the annular shell 32, because the side surface of the contact plate 39 far away from the annular shell 32 is smooth and the contact plate 39 is elastic, the contact plate 39 extrudes the material in the feed pipe 1 to avoid the material from being blocked in the feed pipe 1, meanwhile, the straight gear on the composite gear 34 is in meshing transmission with the spiral teeth on the guide rod 33, the guide rod 33 moves in the sliding groove 321 and is pushed by the guide rod 33, the conduction of the movement of each part of the dredging unit 3 is realized; when the forward and reverse rotation motor 31 drives the compound gear 34 to rotate, a straight gear on the compound gear 34 is in meshing transmission with spiral teeth on the guide rod 33, the guide rod 33 slides in the sliding groove 321, and a section of idle stroke is arranged between adjacent guide rods 33 in the sliding groove 321, so that a time difference exists between the adjacent guide rods 33 and the first steel rope 36 in movement, and when the adjacent guide rods 33 are in contact, the adjacent spherical blocks 37 are respectively positioned at the highest point and the lowest point in the second cavity 391, so that the staggered movement of the spherical blocks 37 is realized; when the first steel rope 36 pulls the spherical blocks 37 to move in the second cavity 391, because the adjacent spherical blocks 37 are respectively positioned at the highest point and the lowest point in the second cavity 391 when the adjacent guide rods 33 are contacted, the length of the second steel rope 4 is equal to the distance between the highest point spherical block 37 and the adjacent lowest point spherical block 37, at this moment, the second steel rope 4 is in a tight state, and the second steel rope 4 presses the first salient points 393 on the contact plate 39, so that the contact plate 39 is deformed more; when the first steel rope 36 pulls the spherical block 37 to move in the second cavity 391, the spherical block 37 and the first steel rope 36 enter the second cavity 391 from the third cavity 392 because the connecting part of the second cavity 391 and the third cavity 392 adopts an arc structure; when the spherical block 37 presses the contact plate 39 or the first steel cable 36 presses the first salient point 393 on the contact plate 39, the contact plate 39 deforms, the contact plate 39 is easier to reset by installing the elastic net 5 in the contact plate 39, the elasticity of the contact plate 39 is increased, and the blockage of the 3D printing head is further avoided; when the first steel rope 36 drives the spherical block 37 to move, the spherical block 37 drives the second steel rope 4 to move in the second cavity 391, and the second salient point 41 on the second steel rope 4 extrudes the first salient point 393 on the contact plate 39, so that the contact plate 39 is deformed more greatly, and the blockage of the 3D printing head is further avoided.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (7)
1. A3D printing head comprises a feeding pipe (1) and a nozzle (2); the end part of the feeding pipe (1) is fixedly connected with the spray head (2), and one end of the spray head (2) extends into the feeding pipe (1) to be tightly contacted with the inner wall of the feeding pipe (1); the method is characterized in that: the device also comprises a dredging unit (3) and a controller; the controller is used for controlling the 3D printing head to work; the dredging unit (3) comprises a positive and negative rotation motor (31), an annular shell (32), a group of guide rods (33), a group of composite gears (34), a group of bevel gears (35), a group of first steel ropes (36), a group of spherical blocks (37), a positioning plate (38) and an elastic contact plate (39);
the annular shell (32) is arranged on the feeding pipe (1), and the surface of the inner ring of the annular shell (32) is fixedly connected with the surface of the outer ring of the feeding pipe (1); a sliding groove (321) and a group of first cavities (322) are formed in the annular shell (32), and the first cavities (322) are communicated with the sliding groove (321); each guide rod (33) is arc-shaped, spiral teeth are uniformly arranged on the guide rods (33), and the guide rods (33) are slidably arranged in the sliding grooves (321); each composite gear (34) consists of a straight gear and a helical gear, the composite gears (34) are installed on the inner wall of one side, close to the spray head (2), in the first cavity (322) through rotating shafts, the straight gears on the composite gears (34) are meshed with helical teeth on the guide rod (33), and the rotating shaft of one composite gear (34) penetrates through the inner wall of one side, close to the spray head (2), in the first cavity (322) and is fixedly connected with an output shaft of the forward and reverse rotating motor (31); the forward and reverse rotating motor (31) is arranged on the outer wall of the feeding pipe (1); each bevel gear (35) is arranged on the inner wall, which is radially overlapped with the annular shell (32), in the first cavity (322) through a rotating shaft, and the bevel gears (35) are vertically meshed with the bevel gears on the compound gear (34); the positioning plate (38) is arranged on the inner wall of one side, away from the spray head (2), of the feeding pipe (1) and used for realizing accurate positioning of the contact plate (39) arranged in the feeding pipe (1); the contact plate (39) is arranged on the inner wall of the feeding pipe (1), one end, close to the spray head (2), of the contact plate (39) is fixedly connected with one end, extending into the feeding pipe (1), of the spray head (2), and the other end of the contact plate (39) is fixedly connected with one end, close to the spray head (2), of the positioning plate (38); a second cavity (391) and a third cavity (392) are formed in the contact plate (39); the second cavity (391) is communicated with the third cavity (392), the second cavity (391) is positioned on one side, far away from the sprayer (2), in the contact plate (39), the third cavity (392) is positioned on one side, close to the sprayer (2), in the contact plate (39), and the diameter of the third cavity (392) is larger than that of the second cavity (391); each spherical block (37) is fixedly connected to one side, close to the spray head (2), in the third cavity (392) through a spring, and the diameter of each spherical block (37) is larger than that of the second cavity (391) and smaller than that of the third cavity (392); one end of each first steel rope (36) is fixedly connected with the spherical block (37), and the other end of each first steel rope is installed on a rotating shaft of the bevel gear (35).
2. A 3D print head according to claim 1, characterized in that: a section of idle stroke is arranged between the adjacent guide rods (33) in the sliding groove (321).
3. A 3D print head according to claim 2, characterized in that: a second steel rope (4) is connected between the adjacent spherical blocks (37); the second steel rope (4) is positioned in the second cavity (391), and the length of the second steel rope (4) is equal to the distance between the highest point spherical block (37) and the adjacent lowest point spherical block (37); a group of first salient points (393) are uniformly arranged on the inner wall of one side of the second cavity (391) far away from the annular shell (32) and on the area between the adjacent spherical blocks (37).
4. A 3D printhead according to claim 3, wherein: the connection part of the second cavity (391) and the third cavity (392) adopts an arc structure.
5. A3D print head according to claim 4, characterized in that: a groove is formed in one side, away from the annular shell (32), of the second cavity (391) in the contact plate (39), and an elastic net (5) is installed in the groove.
6. A3D print head according to claim 5, characterized in that: a group of second salient points (41) are uniformly arranged on the second steel rope (4); the spherical block (37) drives the second steel rope (4) to move, so that the second salient point (41) on the second steel rope (4) extrudes the first salient point (393), and the extrusion effect of the steel rope on the first salient point (393) is increased.
7. The utility model provides a 3D printer which characterized in that: a 3D print head comprising a 3D print head according to any one of claims 1 to 6; the end part of the 3D printing head feeding pipe (1) is fixedly connected with the 3D printer through a guide sleeve (6), positioning grooves are uniformly formed in the guide sleeve (6), and positioning pins (61) are installed in the positioning grooves.
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| CN202110148095.1A CN112959660B (en) | 2021-02-03 | 2021-02-03 | 3D beats printer head and 3D printer |
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| CN202110148095.1A CN112959660B (en) | 2021-02-03 | 2021-02-03 | 3D beats printer head and 3D printer |
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| CN112959660B CN112959660B (en) | 2022-11-04 |
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| CN109094006A (en) * | 2018-08-02 | 2018-12-28 | 张梦如 | A kind of 3D printing method of mobile phone shell |
| CN109454871A (en) * | 2018-10-19 | 2019-03-12 | 东莞市韶达五金科技有限公司 | A kind of printer head anti-blockage structure |
| CN211104571U (en) * | 2019-07-25 | 2020-07-28 | 深圳市维信印刷有限公司 | Cultural relic reproduction is with ceramic 3D printing extrusion head |
| CN112138885A (en) * | 2020-09-30 | 2020-12-29 | 冉欣平 | Spout fine hair and spout mucilage binding and put shower nozzle based on new generation information technology |
| CN212242165U (en) * | 2020-04-21 | 2020-12-29 | 郑州财经学院 | 3D print head capable of adjusting discharge amount and not prone to blockage |
| CN112277318A (en) * | 2020-10-29 | 2021-01-29 | 上海驰尊文具有限公司 | 3D printing nozzle capable of automatically processing blockage |
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2021
- 2021-02-03 CN CN202110148095.1A patent/CN112959660B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094006A (en) * | 2018-08-02 | 2018-12-28 | 张梦如 | A kind of 3D printing method of mobile phone shell |
| CN109454871A (en) * | 2018-10-19 | 2019-03-12 | 东莞市韶达五金科技有限公司 | A kind of printer head anti-blockage structure |
| CN211104571U (en) * | 2019-07-25 | 2020-07-28 | 深圳市维信印刷有限公司 | Cultural relic reproduction is with ceramic 3D printing extrusion head |
| CN212242165U (en) * | 2020-04-21 | 2020-12-29 | 郑州财经学院 | 3D print head capable of adjusting discharge amount and not prone to blockage |
| CN112138885A (en) * | 2020-09-30 | 2020-12-29 | 冉欣平 | Spout fine hair and spout mucilage binding and put shower nozzle based on new generation information technology |
| CN112277318A (en) * | 2020-10-29 | 2021-01-29 | 上海驰尊文具有限公司 | 3D printing nozzle capable of automatically processing blockage |
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| CN112959660B (en) | 2022-11-04 |
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