CN115214136B - Mechanical feeding device and feeding method for 3D printer - Google Patents
Mechanical feeding device and feeding method for 3D printer Download PDFInfo
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- CN115214136B CN115214136B CN202210701949.9A CN202210701949A CN115214136B CN 115214136 B CN115214136 B CN 115214136B CN 202210701949 A CN202210701949 A CN 202210701949A CN 115214136 B CN115214136 B CN 115214136B
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- wire
- clamping
- driving
- horizontal direction
- conveying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Tyre Moulding (AREA)
Abstract
The invention discloses a mechanical feeding device and a feeding method for a 3D printer, wherein the feeding device comprises: a storage box comprising a plurality of wire reels arranged; a transfer mechanism comprising: the wire winding device comprises a first driving assembly, a rotating arm and a grabbing assembly, wherein the first driving assembly is connected with one end of the rotating arm and is configured to drive the rotating arm to switch between an output port of a storage box and a designated station, the grabbing assembly is connected with the other side of the rotating arm and is configured to grab a wire winding drum from the storage box onto the rotating arm; the driving mechanism is connected with the grabbing component and is configured to drive the grabbing component to rotate; the conveying mechanism comprises a driving wheel and a conveying wheel which is arranged opposite to the driving wheel, and an output cavity is defined between the driving wheel and the conveying wheel.
Description
Technical Field
The invention relates to the field of 3D printer equipment, in particular to a mechanical feeding device and a feeding method for a 3D printer.
Background
The 3D printing technology is a technology for constructing an object by using a powdery metal or plastic and other bondable materials based on a digital model file in a layer-by-layer printing mode; in the prior art, when using the metal wire material as raw and other materials to print, need manual feeding, because there is certain distance between wire reel and the printer head of material loading, in the printing process, if the clout is not enough, need the manual work to carry out the threading, print in the middle of like this will interrupt, seriously influence the continuity of printing work to influence the efficiency of work, and the manual work carries out the material loading, and inconvenient use has increased processing procedure, improves manufacturing cost.
Disclosure of Invention
The technical aim can be achieved by adopting the following technical characteristics, and other technical effects are brought to the technical proposal aiming at the problems and the requirements.
An object of the present invention is to provide a mechanical feeding device for a 3D printer, including:
a storage box comprising a plurality of wire reels arranged;
a transfer mechanism comprising: the wire winding device comprises a first driving assembly, a rotating arm and a grabbing assembly, wherein the first driving assembly is connected with one end of the rotating arm and is configured to drive the rotating arm to switch between an output port of a storage box and a designated station, the grabbing assembly is connected with the other side of the rotating arm and is configured to grab a wire winding drum from the storage box onto the rotating arm;
the driving mechanism is connected with the grabbing component and is configured to drive the grabbing component to rotate;
the conveying mechanism comprises a driving wheel, a conveying wheel and a driving motor; the driving wheel is disposed opposite to the conveying wheel, an output cavity is defined between the driving wheel and the conveying wheel, and the driving motor is connected with the driving wheel 410.
In addition, the mechanical feeding device for the 3D printer can also have the following technical characteristics:
in one example of the present invention, further comprising: the lead wire mechanism is provided with a lead wire mechanism,
the wire guide mechanism includes a moving lever portion that can move in a horizontal direction and a locking portion that can switch movement between a locking position that clamps the wire and a releasing position that releases the wire.
In one example of the present invention, the locking part includes:
the lock cylinder is provided with a through hole which extends along a first direction and is matched with the metal wire;
a housing having a lock cavity with one end open, the lock cylinder being capable of switching movement between a locked position and a released position within the lock cavity;
when the lock cylinder is switched from the release position to the locking position, the through hole of the lock cylinder deforms under the extrusion of the lock cavity to fix the metal wire; when the lock cylinder is switched from the locking position to the releasing position, the through hole of the lock cylinder is released in the lock cavity to release the metal wire.
In one example of the present invention, the locking part further includes:
a second drive assembly including a cylinder and a piston rod telescoped within the cylinder, wherein the cylinder is coupled to one of the lock cylinder and the housing, and the piston rod is coupled to the other of the lock cylinder and the housing, configured to drive the lock cylinder to switch movement relative to the housing between a locked position and a released position.
In one example of the present invention, the lead wire mechanism further includes:
an adjusting portion and a guide portion provided on the adjusting portion, the adjusting portion being configured to adjust a position of the guide portion in a horizontal direction.
In one example of the invention, the grasping assembly includes:
the turntable is connected with the first driving assembly;
the telescopic rods are fixed on the turntable and are arranged at intervals along the circumferential direction, the outer contours of the telescopic rods form a supporting frame, and the telescopic rods can simultaneously do telescopic movement to change the supporting outer diameter of the supporting frame and adapt to the wire winding drum.
In one example of the present invention, further comprising: the wire pulling mechanism, the wire pulling mechanism includes:
the two moving trolleys are symmetrically arranged along the transverse direction perpendicular to the horizontal direction in which the metal wires extend and can move along the horizontal direction;
the two telescopic arms are symmetrically arranged along the transverse direction perpendicular to the horizontal direction in which the metal wires extend and are respectively connected with the corresponding movable trolley, and each telescopic arm can move in a telescopic manner along the transverse direction towards each other or away from each other so as to clamp or release the metal wires.
In one example of the present invention, the wire-pulling mechanism further includes:
two clamping blocks, each of which is fixed on the corresponding telescopic arm, and each of which faces each other and has a clamping surface in the transverse direction, and each clamping surface is formed with a clamping groove extending along the horizontal direction; wherein when the two clamping surfaces abut each other such that the two clamping grooves together define a clamping cavity for clamping the wire; when the two clamping surfaces face away from each other, the clamping chamber releases the wire.
In one example of the present invention, further comprising: the guide tube is arranged on the inner side of the guide tube,
the wire outlet end of the wire is arranged between the wire outlet end of the wire winding drum and the wire dragging mechanism and is configured to guide the wire into the wire dragging mechanism;
and/or
The wire guiding device is arranged at the output end of the conveying mechanism and is configured to guide the wire to the wire guiding mechanism or the guide wheel.
Another object of the present invention is to provide a feeding method of the mechanical feeding device for a 3D printer, including the following steps:
s10: the first driving component drives the rotating arm to rotate from the appointed station to an output port of the storage box, a wire winding drum is grabbed by the grabbing component, and the wire winding drum is rotated to the appointed station by the grabbing component;
s20: the grabbing component is driven by the driving mechanism to rotate, so that the wire winding drum releases the metal wire;
s30: clamping the wire by the wire pulling mechanism and moving in a horizontal direction to pull the wire to a conveying mechanism close to the driving mechanism and release the wire;
s40: engaging the wire by a conveying mechanism adjacent to the driving mechanism and conveying the wire in a horizontal direction;
s50: the wire enters the wire guiding mechanism as described above, is locked by the locking portion, is then moved by the moving lever portion in the horizontal direction to the input end of another conveying mechanism, and is pivoted by the conveying mechanism to the designated processing position of the 3D printer.
Preferred embodiments for carrying out the present invention will be described in more detail below with reference to the attached drawings so that the features and advantages of the present invention can be easily understood.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following description will briefly explain the drawings of the embodiments of the present invention. Wherein the showings are for the purpose of illustrating some embodiments of the invention only and not for the purpose of limiting the same.
Fig. 1 is a schematic structural diagram of a mechanical feeding device for a 3D printer according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a transfer mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a wire-pulling mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of a lumen gripping wire in accordance with an embodiment of the present invention;
fig. 5 is a control schematic diagram of a mechanical feeding device for a 3D printer according to an embodiment of the present invention.
List of reference numerals:
a feeding device 1000;
a storage bin 100;
a transfer mechanism 200;
a first drive assembly 210;
a swivel arm 220;
a grasping assembly 230;
a turntable 231;
a telescopic rod 232;
a driving mechanism 300;
a conveying mechanism 400;
a drive wheel 410;
a conveying wheel 420;
a driving motor 430;
a support frame 440;
a lead wire mechanism 500;
a moving lever 510;
a locking part 520;
a lock cylinder 521;
a through hole 5211;
a housing 522;
a second drive assembly 523;
an adjusting part 530;
a guide 540;
a holder portion 550;
a wire-pulling mechanism 600;
a mobile cart 610;
a trolley body 611;
a guide rail 612;
a clamp block 630;
a clamping surface 631;
a clamping groove 632;
a guide tube 700;
a controller 800;
guide pulley 900;
a bracket 910;
a clamping cavity A;
a wire reel 10;
a wire 11;
and a lead terminal 111.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the technical solutions of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
A mechanical feeding device 1000 for a 3D printer according to a first aspect of the present invention, as shown in fig. 1 to 5, includes:
a storage bin 100 comprising a plurality of wire reels 10 arranged;
the transfer mechanism 200 includes: a first drive assembly 210, a rotatable arm 220, and a grasping assembly 230, wherein the first drive assembly 210 is coupled to one end of the rotatable arm 220 and is configured to drive the rotatable arm 220 to transition between an output port of the storage bin 100 and a designated station, and the grasping assembly 230 is coupled to the other side of the rotatable arm 220 and is configured to grasp the wire spool 10 from the storage bin 100 onto the rotatable arm 220;
a drive mechanism 300 coupled to the grasping assembly 230 and configured to drive the grasping assembly 230 to rotate;
a conveying mechanism 400 including a driving wheel 410, a conveying wheel 420, and a driving motor 430; the driving wheel 410 is disposed opposite to the conveying wheel 420, an output cavity is defined between the driving wheel 410 and the conveying wheel 420, and the driving motor 430 is connected to the driving wheel 410. For example, the driving wheel 410 and the guiding wheel 420 are both pivotally arranged on the supporting frame 440, the driving motor 430 is fixed on the supporting frame 440, and the output shaft thereof is fixedly connected with the driving wheel 410.
That is, the first driving unit 210 drives the rotary arm 220 to rotate from the designated station to the output port of the storage box 100, the gripping unit 230 grips one wire reel 10, and the gripping unit 230 rotates the wire reel 10 to the designated station; the gripping assembly 230 is driven in rotation by the driving mechanism 300, so that the wire reel 10 releases the wire 11; engaging the wire 11 and transporting it in a horizontal direction by a transporting mechanism 400 adjacent to the driving mechanism 300; the wire 11 enters the wire guiding mechanism 500, the wire 11 is locked by the locking part 520, then the wire 11 is moved to the input end of the other conveying mechanism 400 in the horizontal direction by the moving rod part 510, and the wire 11 is pivoted to the designated processing position of the 3D printer by the conveying mechanism 400; this loading attachment 1000 can automatic threading and accomplish automatic feeding, guarantees the continuity of print job, has improved production efficiency, reduces processing procedure, uses manpower sparingly, has reduced manufacturing cost.
In one example of the present invention, the guide wheel 900 is further included, and the guide wheel 900 is disposed at the front end of the feeding device 1000 through a bracket 910 (pivotably disposed on the bracket 910), and the guide wheel 900 is disposed to convey the wire 11 to a designated processing place of the 3D printer.
In one example of the present invention, further comprising: the wire-guiding mechanism 500 is configured such that,
the wire guide mechanism 500 includes a moving lever portion 510 and a locking portion 520, the moving lever portion 510 being movable in a horizontal direction, the locking portion 520 being capable of switching movement between a locking position for clamping the wire 11 and a releasing position for releasing the wire 11;
the wire 11 output from the output end can be moved in the horizontal direction by providing the wire guide mechanism 500, and in the embodiment of the present invention, two conveying mechanisms 400 are included, and since the wire 11 is of a flexible structure, after the conveying mechanism 400 is output from the first conveying mechanism 400, it is difficult to ensure that the end of the wire 11 can enter the input end of the other conveying mechanism 400, and the wire guide mechanism 500 is provided to ensure that the wire 11 accurately enters the next conveying mechanism 400.
In one example of the present invention, the locking part 520 includes:
a lock cylinder 521 having a through hole 5211 extending in a first direction and adapted to the wire 11;
a housing 522 having a lock chamber with one end open, the lock cylinder 521 being switchable between a locked position and a released position within the lock chamber;
when the lock cylinder 521 is switched from the release position to the lock position, the through hole 5211 of the lock cylinder 521 deforms under the extrusion of the lock chamber to fix the wire 11; when the lock cylinder 521 is switched from the locking position to the releasing position, the through hole 5211 of the lock cylinder 521 is released in the lock chamber to release the wire 11; for example, the housing 522 is a metal piece and the lock cylinder 521 is a rubber piece.
Specifically, the lock core 521 has a truncated cone structure, and the lock cavity in the housing 522 is also in a truncated cone structure adapted to the lock core 521, and the volume of the lock cavity is slightly smaller than the outer contour volume of the lock core 521, so that the lock core 521 deforms in the lock cavity, and finally, the lock core 521 clamps and releases the wire 11.
In one example of the present invention, the locking part 520 further includes:
a second drive assembly 523 comprising a cylinder and a piston rod telescoped within the cylinder, wherein the cylinder is coupled to one of the lock cylinder 521 and the housing 522, the piston rod is coupled to the other of the lock cylinder 521 and the housing 522, configured to drive the lock cylinder 521 to switch movement between a locked position and a released position relative to the housing 522;
the second drive assembly 523 enables a switching movement of the lock cylinder 521 between a locking position and a release position with respect to the housing 522, thereby enabling a clamping and release of the wire 11, facilitating a control of the locking portion 520.
In one example of the present invention, the lead mechanism 500 further includes:
an adjusting part 530 and a guide part 540 provided on the adjusting part 530, the adjusting part 530 being configured to adjust a position of the guide part 540 in a horizontal direction; wherein the guide part 540 is fixedly installed on the holder part 550;
for example, the guide part 540 is provided with a screw, the adjusting part 530 is provided with a nut and a driving motor, the driving motor drives the screw to rotate forwards or reversely, and the nut on the screw reciprocates along the screw in the horizontal direction under the action of the driving motor;
when the feeder 1000 is initially operated, the wire feeding mechanism 500 is positioned near the conveyor 400 of the transfer mechanism 200, and is moved horizontally by the conveyor 400 to the other conveyor 400, so that the wire 11 fed from the conveyor 400 enters the wire feeding mechanism 500, and the input end of the wire feeding mechanism 500 is positioned near the output end of the conveyor 400. In general, the lead mechanism 500 is suitable for long distance guidance.
In one example of the present invention, the grasping element 230 includes:
a turntable 231 coupled to the first driving assembly 210;
the telescopic rods 232 are fixed on the turntable 231 and are arranged at intervals along the circumferential direction, and the outer contours of the telescopic rods 232 form a supporting frame, wherein the telescopic rods 232 can simultaneously perform telescopic movement to change the supporting outer diameter of the supporting frame and adapt to the wire winding drum 10;
that is, when the wire reel 10 needs to be grabbed, the first driving assembly 210 drives the rotating arm 220 to rotate from the designated station to the output port of the storage box 100, the supporting frame formed by the plurality of telescopic rods 232 on the grabbing assembly 230 is adapted to the wire reel 10, the plurality of telescopic rods 232 can simultaneously perform the extending movement to increase the supporting outer diameter of the supporting frame and adapt to the wire reel 10 to grab the wire reel 10, and the grabbing assembly 230 rotates the wire reel 10 to the designated station; the gripping assembly 230 is driven in rotation by the drive mechanism 300, thereby causing the wire spool 10 to release the wire 11.
In one example of the present invention, the conveying mechanism 400 includes two conveying mechanisms and is respectively disposed at both sides of the wire guiding mechanism 500;
the feeding distance of the feeding device 1000 can be effectively extended by arranging two conveying mechanisms 400, and a guide wheel 900 is further arranged at the output end of the conveying mechanism 400 far away from the transfer mechanism 200 and used for guiding the metal wire 11 and falling to a designated processing position under the action of gravity.
In one example of the invention, the storage bin 100 has a delivery chamber, the wire reels 10 are arranged in sequence inside the wire reels 10, and the wire reels 10 located in front move to the output port under the force of gravity;
specifically, the conveying cavity in the storage box 100 is inclined, a transfer box 110 is arranged at the front end of the storage box 100, the wire winding drum 10 rolls into the transfer box 110 from the storage box 100 under the action of gravity, and the wire winding drum 110 in the transfer box 110 is grasped by a grasping assembly 230 on the transfer mechanism 200; wherein, a control rod is pivotally arranged at the output port of the storage box 100, which can be lifted and fallen (for example, the lifting and falling of the control rod are controlled by the telescopic operation of a hydraulic cylinder), and the blanking of the wire reel 10 in the storage box 100 is controlled by the lifting and falling.
The transfer box 110 is open at least at an upper end, and a notch is formed at one of both lateral sides of the transfer box 110, for example, at a side close to the storage box 100, for the convenience of the gripping assembly 230 gripping the wire reel 110.
It should be added that, in order to facilitate the grabbing component 230 to grab the wire reel 110, a sliding rail is laid along the transverse direction at the lower end of the transfer box 110, a pulley matched with the sliding rail is arranged on the transfer box 110, and the pulley is driven to rotate by a motor to enable the transfer box 110 to move on the sliding rail (for example, the pulley is a gear, and the sliding rail is a rack); that is, during the grabbing process, the first driving assembly 210 drives the rotating arm 220 to rotate from the designated station to the output port of the storage box 100, and then controls the transfer box 110 to move so that the winding reel 10 can be sleeved on the turntable 231, and the winding reel 10 is fixed by adjusting and increasing the outer diameter of the supporting frame formed by the outer contours of the plurality of telescopic rods 232.
It should be noted that, in order to facilitate the transfer of the wire reel 10 located in the transfer box 110, when the wire reel 10 is located in the transfer box 110, the position of the wire reel 10 may be manually adjusted during the grabbing process of the grabbing assembly 230.
That is, the wire reel 10 may be automatically transported to the output port by gravity, thereby facilitating transfer of the wire reel 10 by the transfer mechanism 200.
In one example of the present invention, further comprising: a wire-drawing mechanism 600, the wire-drawing mechanism 600 comprising:
two traveling carts 610 symmetrically arranged along a transverse direction perpendicular to a horizontal direction in which the wire 11 extends and capable of traveling in the horizontal direction; the traveling carriage 610 includes: the trolley comprises trolley bodies 611 and guide rails 612, wherein the guide rails 612 extend along the horizontal direction and are symmetrically arranged in the transverse direction, and each trolley body 611 is matched with the guide rail 612 and can move along the horizontal direction; for example, the trolley body 611 and the guide rail 612 are driven by a structure of a lead screw nut, that is, the guide rail 612 is provided with a sliding block, the trolley body 611 is fixed on the sliding block, and the guide rail 612 is driven by a motor to rotate so that the sliding block can reciprocate along the horizontal direction; for another example, the trolley body 611 and the guide rail 612 are driven by a gear-rack structure, that is, a driving motor and a gear connected with the driving motor are arranged on the trolley, a rack meshed with the gear box is arranged on the guide rail 612, and the gear is driven by the motor to rotate positively and negatively, so that the trolley body 611 reciprocates on the guide rail 612.
Two telescopic arms 620 symmetrically arranged along a transverse direction perpendicular to a horizontal direction along which the wire 11 extends and respectively connected to the respective traveling trolleys 610, each telescopic arm 620 being capable of telescopic movement along the transverse direction in a direction opposite to or away from each other to clamp or release the wire 11;
that is, at the beginning of the guiding stage, the wire reel 10 is driven by the driving mechanism 300 to rotate (e.g., counterclockwise) so that the wire 11 is released from the wire reel 10 by the wire end 111 and moves in the horizontal direction into the wire pulling mechanism 600, then the wire 11 is held by the two telescopic arms 620 moving toward each other, then the wire 11 is moved in the horizontal direction to the conveying mechanism 400 by the moving carriage 610, the two telescopic arms 620 move away from each other to release the wire 11, and the wire end 111 is simultaneously output in the horizontal direction by the holding of the driving wheel 410 and the conveying wheel 420 together.
When the wire pulling mechanism 600 clamps the wire 11, the wire leading end 111 passes through the clamping cavity a to be led out of the wire pulling mechanism 600, so that the wire leading end 111 and the conveying mechanism 400 can be connected in a matched manner; and the wire 11 can move in the two clamping grooves 632 after being released in the clamping cavity A, thereby playing a guiding role. Generally, the tow mechanism 600 is adapted for short-range guidance. Of course, the wire-pulling mechanism 600 and the wire-guiding mechanism 500 may be replaced with each other for a moderate distance.
It will be appreciated that the rotational speed of the drive mechanism 300 corresponds to the speed of movement of the trolley 610, avoiding any one of the two getting stuck during movement.
In one example of the present invention, the wire-pulling mechanism 600 further includes:
two clamping blocks 630, each clamping block 630 is fixed on the corresponding telescopic arm 620, each telescopic arm 620 is provided with a clamping surface 631 facing each other in the transverse direction, and each clamping surface 631 is provided with a clamping groove 632 extending along the horizontal direction; wherein when the two clamping surfaces 631 abut each other such that the two clamping grooves 632 together define a clamping cavity a for clamping the wire 11; when the two clamping surfaces 631 face away from each other, the clamping chamber a releases the wire 11;
of course, the inner diameter of the clamping cavity A is slightly smaller than the outer diameter of the metal wire 11, so that the metal wire 11 can be tightly clamped when the metal wire 11 is clamped by the clamping cavity A; for example, a friction-increasing texture is provided in the clamp groove 632.
In one example of the present invention, further comprising: the guide tube 700 is provided with a guide tube,
arranged between the wire end of the wire 11 of the wire reel 10 and the wire pulling mechanism 600, configured to guide the wire 11 into the wire pulling mechanism 600;
and/or
Is provided at the output end of the delivery mechanism 400 and is configured to guide the wire 11 to the wire guide mechanism 500 or the guide pulley 900.
The wire 11 can be guided from the wire outlet end of the wire 11 of the wire reel 10 to the input end of the wire pulling mechanism 600 through the guide tube 700, so that the wire 11 can be accurately engaged by the clamping cavity A of the wire pulling mechanism 600; that is, when the wire 11 is extended from the wire outlet end of the guide tube 700 by a distance that is just capable of being clamped by the clamping cavity a of the wire pulling mechanism 600, it is possible to avoid deviation of the moving direction due to flexibility of the wire 11 itself.
Similarly, a guiding tube 700 is fixedly connected to the output end of the conveying mechanism 400, and the guiding tube 700 is arranged to guide the metal wire 11, so that the metal wire can accurately reach the through hole 5211 of the lock core 521, and the locking part 520 can lock the metal wire 11 conveniently; and another of the conveyor mechanisms 400 may be conveyed to the guide wheel 900 through the guide tube 700 so as to be conveyed to a designated processing place by the guide wheel 900.
It should be noted that, when the wire 11 is clamped by the wire pulling mechanism 600 and the wire guiding mechanism 500, a certain length of the wire 11 needs to be reserved at the front ends of the wire pulling mechanism 600 and the wire guiding mechanism 500 (because the wire 11 has a certain hardness and the length does not deform under the action of self gravity), and the wire 11 can conveniently enter the conveying mechanism 400 through the reserved length; the reserved length can be realized by controlling a delayer, the speed of releasing the wire 11 by driving the grabbing component 230 through the driving mechanism 300 can be used for calculating the length of the released wire 11, and then the wire pulling mechanism 600 and the wire guiding mechanism 500 are controlled to execute corresponding actions through the delay time of the delayer, so that the wire 11 with a reasonable reserved length is realized.
It should be noted that, when the wire 11 is clamped or conveyed by the wire-guiding mechanism 500, the wire-pulling mechanism 600, the conveying mechanism 400 and the guide wheel 900, the wire is kept on the same horizontal plane, and the working speeds of the wire-guiding mechanism 500, the wire-pulling mechanism 600 and the conveying mechanism 400 are consistent with the rotation speed of the grabbing assembly 230 driven by the driving mechanism 300, so that the wire 11 is not dragged due to too fast speed of one component, and the wire 11 is not piled due to too slow speed of one component, so that coordinated actions among the components are realized, and the wire 11 is prevented from being dragged or piled.
In one example of the present invention, further comprising: the controller 800 may be configured to control the operation of the device,
the controller 800 is coupled to the first driving assembly 21, the driving mechanism 300, the wire-pulling mechanism 600, the conveying mechanism 400 and the wire-guiding mechanism 500, and is configured to control the first driving assembly 21, the driving mechanism 300, the wire-pulling mechanism 600, the conveying mechanism 400 and the wire-guiding mechanism 500 to execute corresponding action instructions;
the controller 800 controls the first driving component 210 to drive the rotating arm 220 to rotate from a designated station to an output port of the storage box 100, the controller 800 controls the grabbing component 230 to grab one wire reel 10, and the controller 800 controls the first driving component 210 to rotate the wire reel 10 to the designated station; then, the controller 800 controls the driving mechanism 300 to drive the grabbing assembly 230 to rotate (reversely rotate), so that the wire reel 10 releases the wire 11, after the wire 11 moves along the guide tube 700 and is led out by a certain distance from the wire outlet end, the controller 800 controls the two telescopic arms 620 of the wire pulling mechanism 600 to move oppositely to clamp the wire 11, then the controller 800 controls the moving trolley 610 to move the wire 11 to the conveying mechanism 4000 along the horizontal direction, when the wire 11 enters the conveying mechanism 400, the controller 800 controls the two telescopic arms 620 to move in the directions deviating from each other to release the wire 11, the wire leading end 111 is clamped by the driving wheel 410 and the conveying wheel 420 together to output along the horizontal direction, and the conveying mechanism 400 close to the driving mechanism 300 clamps the wire 11 and conveys the wire along the horizontal direction; the wire 11 enters the wire guide mechanism 500, and the controller 800 controls the locking part 520 to lock the wire 11, then moves it in a horizontal direction to the input end of the other conveyor 400 by the moving lever part 510 and controls the locking part 520 to release the wire, and pivots the wire 11 to a designated process of the 3D printer by the conveyor 400. This loading attachment 1000 can automatic threading and accomplish automatic feeding, guarantees the continuity of print job, has improved production efficiency, reduces processing procedure, uses manpower sparingly, has reduced manufacturing cost.
According to a second aspect of the present invention, a feeding method of the mechanical feeding device 1000 for a 3D printer includes the following steps:
s10: the first driving component 210 drives the rotating arm 220 to rotate from a designated station to an output port of the storage box 100, the grabbing component 230 grabs one wire reel 10, and the grabbing component 230 rotates the wire reel 10 to the designated station;
s20: the gripping assembly 230 is driven in rotation by the driving mechanism 300, so that the wire reel 10 releases the wire 11;
s30: the wire 11 is gripped and moved in the horizontal direction by the wire pulling mechanism 600 as described above to pull the wire 11 to the conveying mechanism 400 near the driving mechanism 300 and release the wire 11;
s40: engaging the wire 11 and transporting it in a horizontal direction by a transporting mechanism 400 adjacent to the driving mechanism 300;
s50: the wire 11 enters the above-described wire guide mechanism 500, the wire 11 is locked by the locking portion 520, and then is moved in the horizontal direction to the input end of another conveyor mechanism 400 by the moving lever portion 510, and the wire 11 is pivoted to a designated processing place of the 3D printer by the conveyor mechanism 400.
Specifically, the first driving component 210 drives the rotating arm 220 to rotate from a designated station to an output port of the storage box 100, the grabbing component 230 grabs one wire reel 10, and the first driving component 210 rotates the wire reel 10 to the designated station; the gripping assembly 230 is driven to rotate (counter-rotation) by the driving mechanism 300, so that the wire 11 is released by the wire winding drum 10, after the wire 11 moves along the guide tube 700 and is led out by a certain distance from the wire outlet end, the wire 11 is clamped by the two telescopic arms 620 of the wire dragging mechanism 600 in a opposite direction, then the wire 11 is moved to the conveying mechanism 400 along the horizontal direction by the moving trolley 610, the wire 11 is released by the wire 11 entering the conveying mechanism 400 while the two telescopic arms 620 move in the directions deviating from each other, the wire 11 is clamped by the driving wheel 410 and the conveying wheel 420 together, and then the wire 11 is meshed by the conveying mechanism 400 close to the driving mechanism 300 and conveyed along the horizontal direction; the wire 11 enters the wire feeding mechanism 500, the wire 11 is locked by the locking part 520, and then is moved to the input end of the other conveying mechanism 400 in the horizontal direction by the moving lever part 510 and released by the locking part 520, and the wire 11 is pivoted to the designated processing place of the 3D printer by the conveying mechanism 400. The feeding method can automatically feed wires and finish automatic feeding, ensures the continuity of printing work, improves the production efficiency, reduces the processing procedures, saves manpower and reduces the production cost.
While the exemplary embodiment of the mechanical feeding device 1000 for a 3D printer according to the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above without departing from the scope of the present invention, and various technical features and structures may be combined without departing from the scope of the present invention, which is defined in the appended claims.
Claims (7)
1. Mechanical loading attachment for 3D printer, its characterized in that includes:
a storage box (100) comprising a plurality of wire reels (10) arranged;
a transfer mechanism (200) comprising: a first drive assembly (210), a rotatable arm (220), and a grasping assembly (230), wherein the first drive assembly (210) is coupled to one end of the rotatable arm (220) and configured to drive the rotatable arm (220) to transition between an output port of the storage bin (100) and a designated station, and the grasping assembly (230) is coupled to the other side of the rotatable arm (220) and configured to grasp a wire reel (10) from the storage bin (100) onto the rotatable arm (220); wherein the grasping assembly (230) comprises: a turntable (231) coupled to the first drive assembly (210); the telescopic rods (232) are fixed on the turntable (231) and are arranged at intervals along the circumferential direction, and the outer contours of the telescopic rods (232) form a supporting frame, wherein the telescopic rods (232) can simultaneously do telescopic movement to change the supporting outer diameter of the supporting frame and adapt to the wire winding drum (10);
a drive mechanism (300) coupled to the grasping assembly (230) and configured to drive the grasping assembly (230) in rotation;
a conveying mechanism (400) comprising a driving wheel (410), a conveying wheel (420) and a driving motor (430); wherein the driving wheel (410) is arranged opposite to the conveying wheel (420), an output cavity is defined between the driving wheel (410) and the conveying wheel (420), and the driving motor (430) is connected with the driving wheel (410);
-a wire guide mechanism (500), the wire guide mechanism (500) comprising a moving rod (510) and a locking part (520), the moving rod (510) being movable in a horizontal direction, the locking part (520) being switchable between a locking position for clamping a wire (11) and a release position for releasing the wire (11);
a wire-pulling mechanism (600), the wire-pulling mechanism (600) comprising:
two travelling carriages (610) symmetrically arranged along a transverse direction perpendicular to the horizontal direction in which the wire (11) extends and movable along the horizontal direction;
two telescopic arms (620) are symmetrically arranged along a transverse direction perpendicular to the horizontal direction in which the wire (11) extends and are respectively connected with a corresponding travelling trolley (610), each telescopic arm (620) being capable of telescopic movement along the transverse direction towards or away from each other to clamp or release the wire (11).
2. The mechanical feeding device for a 3D printer according to claim 1, wherein,
the locking portion (520) includes:
a lock cylinder (521) having a through hole (5211) extending in a first direction and adapted to the wire (11);
a housing (522) having a lock chamber open at one end, the lock cylinder (521) being switchable between a locked position and a released position within the lock chamber;
when the lock cylinder (521) is switched from the release position to the locking position, the through hole (5211) of the lock cylinder (521) deforms under the extrusion of the lock cavity to fix the metal wire (11); when the lock cylinder (521) is switched from the locking position to the release position, the through hole (5211) of the lock cylinder (521) is released in the lock chamber to release the wire (11).
3. The mechanical feeding device for a 3D printer according to claim 2, wherein,
the locking portion (520) further includes:
a second drive assembly (523) comprising a cylinder and a piston rod retractable within the cylinder, wherein the cylinder is coupled to one of the lock cylinder (521) and the housing (522), the piston rod being coupled to the other of the lock cylinder (521) and the housing (522) and configured to drive the lock cylinder (521) in a switching movement between a locking position and a releasing position relative to the housing (522).
4. The mechanical feeding device for a 3D printer according to claim 1, wherein,
the lead wire mechanism (500) further includes:
an adjusting portion (530) and a guide portion (540) provided on the adjusting portion (530), the adjusting portion (530) being configured to adjust a position of the guide portion (540) in a horizontal direction.
5. The mechanical feeding device for a 3D printer according to claim 1, wherein,
the wire-pulling mechanism (600) further includes:
two clamping blocks (630), each clamping block (630) is fixed on the corresponding telescopic arm (620), each telescopic arm (620) is provided with a clamping surface (631) facing each other in the transverse direction, and each clamping surface (631) is provided with a clamping groove (632) extending along the horizontal direction; wherein when the two clamping surfaces (631) are abutted against each other, the two clamping grooves (632) jointly define a clamping cavity (A) for clamping the metal wire (11); when the two clamping surfaces (631) face away from each other, the clamping chamber (A) releases the wire (11).
6. The mechanical feeding device for a 3D printer according to claim 1, wherein,
further comprises: a guide tube (700),
is arranged between the wire outlet end of the wire (11) of the wire reel (10) and the wire dragging mechanism (600) and is configured to guide the wire (11) into the wire dragging mechanism (600);
and/or
Is arranged at the output end of the conveying mechanism (400) and is configured to guide the metal wire (11) to the lead mechanism (500) or the guide wheel (900).
7. A feeding method of the mechanical feeding device for a 3D printer according to any one of claims 1 to 6, comprising the steps of:
s10: the first driving component (210) drives the rotating arm (220) to rotate from a designated station to an output port of the storage box (100), a wire winding drum (10) is grabbed by the grabbing component (230), and the wire winding drum (10) is rotated to the designated station by the grabbing component (230);
s20: -driving the gripping assembly (230) in rotation by the driving mechanism (300) so as to cause the wire reel (10) to release the wire (11);
s30: clamping the wire (11) by a wire pulling mechanism (600) and moving in a horizontal direction to pull the wire (11) to a conveying mechanism (400) close to the driving mechanism (300) and release the wire (11);
s40: engaging the wire (11) by a conveying mechanism (400) close to the driving mechanism (300) and conveying it in the horizontal direction;
s50: the wire (11) enters the wire guiding mechanism (500), the wire (11) is locked by the locking part (520), then the wire is moved to the input end of the other conveying mechanism (400) in the horizontal direction by the moving rod part (510), and the wire (11) is pivoted to the designated processing position of the 3D printer by the conveying mechanism (400).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210701949.9A CN115214136B (en) | 2022-06-20 | 2022-06-20 | Mechanical feeding device and feeding method for 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210701949.9A CN115214136B (en) | 2022-06-20 | 2022-06-20 | Mechanical feeding device and feeding method for 3D printer |
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| CN115214136A CN115214136A (en) | 2022-10-21 |
| CN115214136B true CN115214136B (en) | 2023-05-26 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NL6715051A (en) * | 1967-02-27 | 1968-08-28 | ||
| AT276028B (en) * | 1967-06-16 | 1969-11-10 | Evg Entwicklung Verwert Ges | Device for winding up web-shaped material, in particular wire mesh webs |
| DE10007082C1 (en) * | 2000-02-16 | 2001-05-10 | Munsch Kunststoff Schweistechn | Extruder welding apparatus for thermoplastic rods or wires, has feed channel linked to delivery channel in curved path to eliminate external wire twisting |
| CN106364907B (en) * | 2016-08-31 | 2019-02-05 | 浙江尚越新能源开发有限公司 | Diode automatic charging device |
| CN106799595B (en) * | 2017-01-25 | 2018-12-04 | 东华大学 | A kind of spinning head process automation production system and method |
| CN207433893U (en) * | 2017-11-08 | 2018-06-01 | 中国科学院深圳先进技术研究院 | A kind of removable disk mechanism |
| CN107934544B (en) * | 2017-12-19 | 2023-06-16 | 安徽省华夏机床制造有限公司 | Automatic plate feeding equipment and using method thereof |
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