CN115214136A - Mechanical feeding device and feeding method for 3D printer - Google Patents
Mechanical feeding device and feeding method for 3D printer Download PDFInfo
- Publication number
- CN115214136A CN115214136A CN202210701949.9A CN202210701949A CN115214136A CN 115214136 A CN115214136 A CN 115214136A CN 202210701949 A CN202210701949 A CN 202210701949A CN 115214136 A CN115214136 A CN 115214136A
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- Prior art keywords
- wire
- assembly
- clamping
- driving
- horizontal direction
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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
Abstract
The invention discloses a mechanical feeding device and a feeding method for a 3D printer, wherein the feeding device comprises: the storage box comprises a plurality of wire winding drums which are arranged; a transfer mechanism comprising: the wire reel gripping device comprises a first driving assembly, a rotating arm and a gripping 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 material storage box and a designated station, and the gripping assembly is connected with the other side of the rotating arm and is configured to grip a wire reel from the material storage box onto the rotating arm; a drive mechanism coupled to the grasping assembly and configured to drive the grasping assembly 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 which takes a digital model file as a base, applies powder metal or plastic and other bondable materials and constructs an object in a layer-by-layer printing mode; among the prior art, when using metal wire material to print as raw and other materials, need manual material loading, because have certain distance between the spool piece of material loading and the printer head, printing the in-process, if the clout is not enough, need the manual work to carry out the threading, print midway like this and will break off, seriously influence the continuity of printing the work to influence the efficiency of work, and the manual work is carried out the material loading, and it is inconvenient to use, has increased manufacturing procedure, improves manufacturing cost.
Disclosure of Invention
In order to solve the problems and requirements, the mechanical feeding device for the 3D printer is provided, the technical purpose can be achieved due to the adoption of the following technical characteristics, and other technical effects are achieved.
One objective of the present invention is to provide a mechanical feeding device for a 3D printer, including:
the storage box comprises a plurality of wire winding drums which are arranged;
a transfer mechanism comprising: the wire reel gripping device comprises a first driving assembly, a rotating arm and a gripping 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 material storage box and a designated station, and the gripping assembly is connected with the other side of the rotating arm and is configured to grip a wire reel from the material storage box onto the rotating arm;
a drive mechanism coupled to the grasping assembly and configured to drive the grasping assembly to rotate;
the conveying mechanism comprises a driving wheel, a conveying wheel and a driving motor; wherein, the driving wheel is arranged 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 according to the present invention may further have the following technical features:
in one example of the present invention, the method further comprises: a wire-leading mechanism,
the wire feeding mechanism includes a movable rod portion movable in a horizontal direction and a locking portion movable to switch between a clamping position to clamp the wire and a releasing position to release the wire.
In one example of the present invention, the locking portion includes:
a lock cylinder having a through hole extending in a first direction and adapted to the wire;
a housing having a lock chamber open at one end, the lock cylinder being capable of switching movement between a clamped position and a released position within the lock chamber;
when the lock cylinder is switched from a 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 core is switched from the locking position to the releasing position, the through hole of the lock core is released in the lock cavity to release the wire.
In one example of the present invention, the locking portion further includes:
a second drive assembly including a cylinder and a piston rod retractable 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 and configured to drive the lock cylinder in a switching movement relative to the housing between a clamped position and a released position.
In one example of the present invention, the wire mechanism further includes:
the adjustment portion is configured to adjust a position of the guide portion in a horizontal direction.
In one example of the present invention, the grasping assembly includes:
a turntable coupled to the first drive assembly;
the telescopic rods are fixed on the rotary table and are arranged at intervals along the circumferential direction, and the telescopic rods form a supporting frame with an outer contour, wherein the telescopic rods can simultaneously perform telescopic motion to change the supporting outer diameter of the supporting frame and are matched with the wire winding drum.
In one example of the present invention, the method further comprises: the wire dragging mechanism is arranged on the wire drawing mechanism,
two moving trolleys which are symmetrically arranged along the transverse direction vertical to the horizontal direction of the extending metal wire 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 wire extends and are respectively connected with the corresponding movable trolley, and each telescopic arm can perform telescopic motion along the transverse direction towards the opposite or back-to-back directions so as to clamp or release the metal wire.
In one example of the present invention, the wire pulling mechanism further comprises:
the clamping blocks are fixed on the corresponding telescopic arms, each telescopic arm is provided with a clamping surface facing to the transverse direction of each other, and each clamping surface is provided with a clamping groove extending along the horizontal direction; wherein when the two clamping surfaces abut against each other, the two clamping grooves jointly define a clamping cavity to clamp the metal wire; when the two clamping surfaces are moved away from each other, the clamping cavity releases the wire.
In one example of the present invention, the method further comprises: a guide tube is arranged on the upper surface of the body,
a wire pulling mechanism disposed between the wire outlet end of the spool and the wire pulling mechanism and configured to guide the wire into the wire pulling mechanism;
and/or
A wire guide mechanism disposed at an output end of the delivery mechanism and configured to guide the wire to the wire guide mechanism or a guide wheel.
Another objective of the present invention is to provide a feeding method of the above mechanical feeding device for a 3D printer, including the following steps:
s10: the first driving assembly drives the rotating arm to rotate from the appointed station to the output port of the material storage box, the grabbing assembly grabs a wire winding drum, and the grabbing assembly rotates the wire winding drum to the appointed station;
s20: driving the grabbing component to rotate by a driving mechanism, so that the wire reel releases the metal wire;
s30: clamping the metal wire by the wire dragging mechanism and moving the metal wire along the horizontal direction to drag the metal wire to a conveying mechanism close to the driving mechanism, and releasing the metal 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 feeding mechanism as described above, is locked by the locking portion, is then moved in the horizontal direction by the moving rod portion to the input end of another conveying mechanism, and is pivoted by the conveying mechanism to a designated processing place of the 3D printer.
The following description of the preferred embodiments for carrying out the present invention will be made in detail with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the showings are for the purpose of illustrating certain embodiments of the invention only and not for the purpose of limiting the invention to all embodiments thereof.
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 diagram of a transfer mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a wire pulling mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a configuration of a cavity gripping wire according to an embodiment of the present invention;
fig. 5 is a control schematic diagram of a mechanical loading device for a 3D printer according to an embodiment of the present invention.
List of reference numbers:
a feeding device 1000;
a storage bin 100;
a transfer mechanism 200;
a first drive assembly 210;
a rotating arm 220;
a grasping assembly 230;
a turntable 231;
an expansion link 232;
a drive mechanism 300;
a conveying mechanism 400;
a drive wheel 410;
a delivery wheel 420;
a driving motor 430;
a support frame 440;
a wire-leading mechanism 500;
moving the lever portion 510;
a locking portion 520;
a lock cylinder 521;
a through hole 5211;
a housing 522;
a second drive assembly 523;
an adjustment part 530;
a guide part 540;
a bracket portion 550;
a wire pulling mechanism 600;
a mobile cart 610;
a trolley body 611;
a guide rail 612;
a telescopic arm 620;
a clamping block 630;
a clamping surface 631;
a clamping groove 632;
a guide tube 700;
a controller 800;
a guide pulley 900;
a support 910;
a clamping cavity A;
a wire drum 10;
a metal wire 11;
lead ends 111.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of 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 the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
A mechanical loading 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 box 100 including a plurality of wire reels 10 arranged;
a transfer mechanism 200, comprising: a first driving assembly 210, a rotating arm 220 and a grasping assembly 230, wherein the first driving assembly 210 is coupled to one end of the rotating arm 220 and is configured to drive the rotating arm 220 to switch between an output port of the storage box 100 and a designated station, and the grasping assembly 230 is coupled to the other side of the rotating arm 220 and is configured to grasp the wire reel 10 from the storage box 100 onto the rotating arm 220;
a driving 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; 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. For example, the driving wheel 410 and the guide wheel 420 are pivotally disposed on the supporting frame 440, the driving motor 430 is fixed on the supporting frame 440, and the output shaft thereof is fixedly connected to the driving wheel 410.
That is, 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 grabbing assembly 230 grabs one spool 10, and the grabbing assembly 230 rotates the spool 10 to the designated station; the gripping assembly 230 is driven by the driving mechanism 300 to rotate, so that the wire reel 10 releases the wire 11; the wire 11 is engaged and conveyed in the horizontal direction by the conveying mechanism 400 adjacent to the driving mechanism 300; the wire 11 enters the wire feeding mechanism 500, the wire 11 is locked by the locking part 520, and then moved in the horizontal direction by the moving lever part 510 to the input end of another conveying mechanism 400, and the wire 11 is pivoted by the conveying mechanism 400 to a designated processing place of the 3D printer; this loading attachment 1000 can automatic threading and accomplish automatic feeding, guarantees the continuity of print job, has improved production efficiency, reduces manufacturing procedure, uses manpower sparingly, has reduced manufacturing cost.
In one example of the present invention, a guide wheel 900 is further included, 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 wire 11 can be conveyed to a designated processing place of the 3D printer by disposing the guide wheel 900.
In one example of the present invention, the method further comprises: the wire-guiding mechanism (500) is provided,
the wire feeding mechanism 500 includes a movable lever portion 510 and a locking portion 520, the movable lever portion 510 being movable in a horizontal direction, the locking portion 520 being movable to switch between a clamping 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 the arrangement of the wire guiding mechanism 500, and in the embodiment of the present invention, the wire guiding mechanism 500 comprises two conveying mechanisms 400, 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 arrangement of the wire guiding mechanism 500 can ensure that the wire 11 can accurately enter 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 fitted to the wire 11;
a housing 522 having a lock chamber open at one end, the lock cylinder 521 being capable of switching movement between a clamping position and a release 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 is deformed under the extrusion of the lock cavity 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 cavity 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 cylinder 521 is of a circular truncated cone structure, and the lock cavity in the housing 522 is also of a circular truncated cone structure matched with the lock cylinder 521, and the volume of the lock cavity is slightly smaller than the volume of the outer contour of the lock cylinder 521, so that the lock cylinder 521 deforms in the lock cavity, and finally the metal wire 11 is clamped and released by the lock cylinder 521.
In one example of the present invention, the locking part 520 further includes:
a second drive assembly 523 comprising a cylinder coupled to one of the lock cylinder 521 and the housing 522 and a piston rod telescoped within the cylinder and coupled to the other of the lock cylinder 521 and the housing 522, configured to drive the lock cylinder 521 to switch movement relative to the housing 522 between a clamped position and a released position;
the second driving assembly 523 can realize the switching movement of the lock cylinder 521 between the clamping position and the releasing position relative to the housing 522, thereby realizing the clamping and releasing of the wire 11 and facilitating the control of the locking part 520.
In one example of the present invention, the wire feeding 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 guiding part 540 is fixedly installed on the bracket part 550;
for example, the guide part 540 is a lead screw, the adjusting part 530 is a nut and a driving motor, the driving motor drives the lead screw to rotate forwards or backwards, and the nut on the lead screw reciprocates along the lead screw in the horizontal direction under the action of the driving motor;
it should be noted that, when the loading apparatus 1000 is initially operated, the wire feeding mechanism 500 is located close to the conveying mechanism 400 of the transfer mechanism 200 and is moved in the horizontal direction from the conveying mechanism 400 to another conveying mechanism 400, and in order to allow the wire 11 fed out from the conveying mechanism 400 to enter the wire feeding mechanism 500, the input end of the wire feeding mechanism 500 is located close to the output end of the conveying mechanism 400. Generally, the wire guiding mechanism 500 is suitable for long distance guiding.
In one example of the present invention, the grasping assembly 230 includes:
a turntable 231 coupled with the first drive assembly 210;
a plurality of telescopic rods 232 fixed on the turntable 231 and arranged at intervals along the circumferential direction, and a support frame formed by the outer contours of the plurality of telescopic rods 232, wherein the plurality of telescopic rods 232 can simultaneously perform telescopic motion to change the support outer diameter of the support frame and adapt to the wire drum 10;
that is, when the wire winding drum 10 needs to be grasped, 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 support frame formed by the plurality of telescopic rods 232 on the grasping assembly 230 fits into the wire winding drum 10, the plurality of telescopic rods 232 can simultaneously perform an extending motion to increase the support outer diameter of the support frame and fit with the wire winding drum 10 to grasp the wire winding drum 10, and the grasping assembly 230 rotates the wire winding drum 10 to the designated station; the grasping assembly 230 is driven to rotate by the driving mechanism 300, thereby causing the wire reel 10 to release the wire 11.
In one example of the present invention, the conveying mechanism 400 includes two conveying mechanisms, and the two conveying mechanisms are respectively disposed on both sides of the wire feeding mechanism 500;
the feeding distance of the feeding device 1000 can be effectively extended by providing two conveying mechanisms 400, and a guide wheel 900 is further provided at the output end of the conveying mechanism 400 far from the transfer mechanism 200 for guiding the wire 11 and allowing the wire 11 to fall to a designated processing position under the action of gravity.
In one example of the present invention, the magazine 100 has a conveying chamber, the wire reels 10 are arranged in sequence in the wire reels 10, and the wire reels 10 located in front move to an output port under the action of gravity;
specifically, the conveying chamber in the storage box 100 is disposed obliquely, and a transfer box 110 is disposed at the front end of the storage box 100, the spool 10 rolls from the storage box 100 into the transfer box 110 under the action of gravity, and the spool 110 in the transfer box 110 is grabbed by the grabbing component 230 on the transfer mechanism 200; wherein, a control rod is pivotally disposed at the output port of the storage box 100, and can be lifted and lowered (for example, the lifting and lowering of the control rod is controlled by the extension and contraction of the hydraulic cylinder), and the blanking of the spool 10 in the storage box 100 is controlled by the lifting and lowering.
The transfer box 110 is open at least at the upper end, and a notch is formed in one of both lateral sides of the transfer box 110 in order to facilitate the grasping assembly 230 to grasp the wire reel 110, for example, the notch is formed at a side close to the storage box 100.
It should be added that, in order to facilitate the grasping assembly 230 to grasp the wire reel 110, a slide rail is laid on the lower end of the transfer box 110 along the transverse direction, a pulley matched with the slide rail is disposed on the transfer box 110, and the pulley is driven to rotate by the motor so that the transfer box 110 moves on the slide rail (for example, the pulley is a gear, and the slide rail is a rack); in 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 the transfer box 110 is controlled to move so that the spool 10 can be sleeved on the turntable 231, and the spool 10 is fixed by adjusting the outer diameter of the support frame formed by increasing the outer contour 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 gripping process of the gripping assembly 230.
That is, the spool 10 can be automatically transported to the output port by gravity, thereby facilitating the transfer mechanism 200 to transfer the spool 10.
In one example of the present invention, the method further comprises: the wire pulling mechanism (600) is arranged,
two traveling carts 610 which are symmetrically arranged in a transverse direction perpendicular to a horizontal direction in which the wire 11 extends, and which can move in the horizontal direction; the traveling carriage 610 includes: 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 structural form of a screw nut, that is, a slider is arranged on the guide rail 612, the trolley body 611 is fixed on the slider, and the guide rail 612 is driven by a motor to rotate so that the slider can reciprocate along the horizontal direction; for another example, the trolley body 611 and the guide rail 612 are driven by a rack and pinion structure, that is, the trolley is provided with a driving motor and a pinion connected to the driving motor, the guide rail 612 is provided with a rack engaged with the gear box, and the pinion is driven by the motor to rotate forward and backward, 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 in which the wire 11 extends, and respectively connected to the corresponding moving carriages 610, each telescopic arm 620 being capable of telescopic movement in a direction toward or away from each other along the transverse direction to tighten or loosen the wire 11;
that is, in the initial guiding stage of the wire reel 10, the driving mechanism 300 drives the wire reel 10 to rotate (for example, rotate counterclockwise), so that the wire 11 releases the wire end 111 from the wire reel 10, and moves in the horizontal direction into the wire pulling mechanism 600, and then the two telescopic arms 620 move towards each other to clamp the wire 11, and then the moving trolley 610 moves the wire 11 in the horizontal direction to the conveying mechanism 400, and the two telescopic arms 620 move away from each other to release the wire 11, and at the same time, the wire end 111 is clamped by the driving wheel 410 and the conveying wheel 420 to be output in the horizontal direction.
It should be noted that, when the wire drawing mechanism 600 clamps the metal wire 11, the lead end 111 passes through the clamping cavity a and is led out of the wire drawing mechanism 600, so that the lead end 111 and the conveying mechanism 400 can be conveniently connected in a matching manner; and the release of the wire 11 in the clamping cavity a enables the wire 11 to move in the two clamping grooves 632, which acts as a guide. Generally, the tow mechanism 600 is adapted for short distance guidance. Of course, the wire pulling mechanism 600 and the wire guiding mechanism 500 may be substituted for each other for moderate distances.
It will be appreciated that the rotational speed of the drive mechanism 300 is coordinated with the speed of the mobile cart 610, preventing either from becoming stuck during movement.
In an example of the present invention, the wire pulling mechanism 600 further includes:
two clamping blocks 630, each clamping block 630 being fixed to the corresponding telescopic arm 620, and each telescopic arm 620 having a clamping surface 631 facing in a transverse direction to each other, each clamping surface 631 having a clamping groove 632 formed thereon extending in a horizontal direction; wherein the two clamping grooves 632 together define a clamping cavity a to clamp the wire 11 when the two clamping surfaces 631 abut against each other; when the two clamping surfaces 631 are facing away from each other, the clamping cavity 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 clamping cavity A clamps the metal wire 11; for example, a texture to increase friction is provided within the clamp groove 632.
In one example of the present invention, the method further comprises: the guide tube (700) is provided with a guide tube (700),
is arranged between the wire outlet end of the wire 11 of the wire reel 10 and the wire pulling mechanism 600 and is configured to guide the wire 11 into the wire pulling mechanism 600;
and/or
Is disposed at the output end of the feeding mechanism 400 and is configured to guide the wire 11 to the wire-guiding mechanism 500 or the guide roller 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, after the wire 11 extends from the wire outlet end of the guide tube 700 by a certain distance, the distance is just clamped by the clamping cavity a of the wire pulling mechanism 600, so that the deviation of the moving direction caused by the flexibility of the wire 11 can be avoided.
Similarly, a guide tube 700 is fixedly connected to the output end of the delivery mechanism 400, and the guide tube 700 can guide the wire 11 to accurately reach the through hole 5211 of the lock cylinder 521, so that the locking part 520 can lock the wire 11; and another delivery mechanism 400 may be delivered to idler 900 via guide tube 700 for delivery from idler 900 to a designated process.
It should be noted that when the wire 11 is gripped by the wire pulling mechanism 600 and the wire leading 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 leading mechanism 500 (because the wire 11 has certain hardness, and the length does not deform under the action of its own gravity), and the wire 11 can conveniently enter the conveying mechanism 400 through the reserved length; the reserved length can be controlled by a time delay device, the length of the releasing wire 11 can be calculated by the speed of the driving mechanism 300 driving the grabbing component 230 to release the wire 11, and then the wire dragging mechanism 600 and the wire leading mechanism 500 are controlled to execute corresponding actions by the delay time of the time delay device, so that the wire 11 with a reasonable length can be reserved.
It should be noted that when the wire guiding mechanism 500, the wire dragging mechanism 600, the conveying mechanism 400, and the guide wheel 900 clamp or convey the metal wire 11, the metal wire is kept on the same horizontal plane, and the working speeds of the wire guiding mechanism 500, the wire dragging mechanism 600, and the conveying mechanism 400 are the same as the rotating speed of the driving grabbing component 230 driven by the driving mechanism 300, so that the metal wire 11 is not dragged due to an excessively fast component, and the metal wire 11 is not piled up due to an excessively slow component, so that the components are coordinated to each other, and the situation that the metal wire 11 is dragged or piled up is avoided.
In one example of the present invention, the method further comprises: the control unit (800) is provided with a controller,
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 leading 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 leading mechanism 500 to execute corresponding motion commands;
the controller 800 controls the first driving assembly 210 to drive the rotating arm 220 to rotate from the designated station to the output port of the storage box 100, the controller 800 controls the grasping assembly 230 to grasp one wire reel 10, and the controller 800 controls the first driving assembly 210 to rotate the wire reel 10 to the designated station; then the controller 800 controls the driving mechanism 300 to drive the grabbing component 230 to rotate (rotate reversely), so that the wire reel 10 releases the wire 11, the wire 11 moves along the guide tube 700 and is led out from the wire outlet end for a certain distance, then the controller 800 controls the two telescopic arms 620 of the wire dragging 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 away from each other to release the wire 11, the wire end 111 is clamped by the driving wheel 410 and the conveying wheel 420 together to be output along the horizontal direction, and the conveying mechanism 400 close to the driving mechanism 300 is used for clamping the wire 11 and conveying the wire along the horizontal direction; the wire 11 enters the wire feeding mechanism 500, the controller 800 controls the locking part 520 to lock the wire 11, then moves it in the horizontal direction by the moving lever part 510 to the input end of another transport mechanism 400 and controls the locking part 520 to release the wire, and the wire 11 is pivoted by the transport mechanism 400 to the designated processing place of the 3D printer. This loading attachment 1000 can automatic threading and accomplish automatic feeding, guarantees the continuity of print job, has improved production efficiency, reduces manufacturing procedure, uses manpower sparingly, has reduced manufacturing cost.
According to a second aspect of the present invention, the feeding method of the above mechanical feeding device 1000 for a 3D printer includes the following steps:
s10: 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 grabbing assembly 230 grabs one wire reel 10, and the grabbing assembly 230 rotates the wire reel 10 to the designated station;
s20: the gripping assembly 230 is driven by the driving mechanism 300 to rotate, so that the wire reel 10 releases the wire 11;
s30: the wire 11 is gripped by the wire drawing mechanism 600 as described above and moved in the horizontal direction to draw the wire 11 to the conveying mechanism 400 near the driving mechanism 300 and to release the wire 11;
s40: the wire 11 is engaged and conveyed in the horizontal direction by the conveying mechanism 400 adjacent to the driving mechanism 300;
s50: the wire 11 enters the above-described wire feeding mechanism 500, the wire 11 is locked by the locking portion 520, and then moved in the horizontal direction to the input end of another conveying 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 conveying mechanism 400.
Specifically, 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 grabbing assembly 230 grabs one spool 10, and the first driving assembly 210 rotates the spool 10 to the designated station; the driving mechanism 300 drives the grabbing assembly 230 to rotate (rotate reversely), so that the wire reel 10 releases the wire 11, the wire 11 moves along the guide tube 700 and is led out from the wire outlet end for a certain distance, then the two telescopic arms 620 of the wire dragging mechanism 600 move oppositely to clamp the wire 11, then the moving trolley 610 moves the wire 11 to the conveying mechanism 400 along the horizontal direction, when the wire 11 enters the conveying mechanism 400, the two telescopic arms 620 move back to each other to release the wire 11, the wire end 111 is clamped by the driving wheel 410 and the conveying wheel 420 to output along the horizontal direction, and the conveying mechanism 400 close to the driving mechanism 300 is used for clamping the wire 11 and conveying the wire along the horizontal direction; the wire 11 enters the wire feeding mechanism 500, the wire 11 is locked by the locking portion 520, then moved in the horizontal direction by the moving lever portion 510 to the input end of the other transport mechanism 400 and released by the locking portion 520, and the wire 11 is pivoted by the transport mechanism 400 to the designated processing place of the 3D printer. The feeding method can automatically thread and complete automatic feeding, ensures the continuity of printing work, improves the production efficiency, reduces the processing procedures, saves manpower and reduces the production cost.
In the foregoing, the exemplary embodiment of the mechanical loading device 1000 for 3D printer proposed by the present invention is described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present invention may be made without departing from the concept of the present invention, and the scope of the present invention is determined by the appended claims.
Claims (10)
1. The utility model provides a mechanical loading attachment for 3D printer which characterized in that includes:
a storage bin (100) comprising a plurality of wire drums (10) arranged;
a transfer mechanism (200) comprising: a first driving assembly (210), a rotating arm (220) and a grabbing assembly (230), wherein the first driving assembly (210) is coupled with one end of the rotating arm (220) and is configured to drive the rotating arm (220) to switch between an output port of the storage box (100) and a designated station, and the grabbing assembly (230) is coupled with the other side of the rotating arm (220) and is configured to grab the wire reel (10) from the storage box (100) onto the rotating 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) comprising a driving wheel (410), a conveying wheel (420) and a driving motor (430); the driving wheel (410) and the conveying wheel (420) are arranged oppositely, 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).
2. The mechanical feeding device for 3D printer according to claim 1,
further comprising: a wire-leading mechanism (500),
the wire feeding mechanism (500) includes a movable lever portion (510) and a locking portion (520), the movable lever portion (510) being movable in a horizontal direction, the locking portion (520) being capable of switching movement between a clamping position to clamp the wire (11) and a releasing position to release the wire (11).
3. The mechanical loading device for 3D printer according to claim 2,
the locking portion (520) includes:
a lock cylinder (521) having a through hole (5211) extending in a first direction and fitted to the wire (11);
a housing (522) having a lock cavity open at one end, the lock cylinder (521) being capable of switching movement between a clamped position and a released position within the lock cavity;
when the lock cylinder (521) is switched from a release position to the locking position, the through hole (5211) of the lock cylinder (521) is deformed under the extrusion of the lock cavity 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 cavity to release the wire (11).
4. The mechanical loading device for 3D printer according to claim 3,
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) and the piston rod is coupled to the other of the lock cylinder (521) and the housing (522) and configured to drive the lock cylinder (521) relative to the housing (522) in a switching movement between a clamped position and a released position.
5. The mechanical loading device for 3D printer according to claim 2,
the wire feed mechanism (500) further comprises:
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.
6. The mechanical loading device for 3D printer according to claim 1,
the grasping assembly (230) includes:
a turntable (231) coupled with the first drive assembly (210);
and the telescopic rods (232) are fixed on the rotary table (231) and are arranged at intervals along the circumferential direction, and the telescopic rods (232) form a supporting frame, wherein the telescopic rods (232) can perform telescopic motion simultaneously to change the supporting outer diameter of the supporting frame and are matched with the wire winding drum (10).
7. The mechanical loading device for 3D printer according to claim 1,
further comprising: a wire dragging mechanism (600) is arranged,
two traveling carriages (610) symmetrically arranged in a transverse direction perpendicular to a horizontal direction in which the wire (11) extends and capable of traveling in the horizontal direction;
two telescopic arms (620) are symmetrically arranged along a transverse direction perpendicular to the horizontal direction in which the metal wire (11) extends and are respectively connected with the corresponding mobile trolley (610), and each telescopic arm (620) can be telescopically moved towards the direction opposite to or away from each other along the transverse direction so as to clamp or release the metal wire (11).
8. The mechanical loading device for 3D printer according to claim 7,
the wire pulling mechanism (600) further comprises:
two clamping blocks (630), each clamping block (630) is fixed on the corresponding telescopic arm (620), each telescopic arm (620) faces to each other in the transverse direction and is provided with a clamping surface (631), and each clamping surface (631) is provided with a clamping groove (632) extending along the horizontal direction; wherein the two clamping grooves (632) together define a clamping cavity (A) for clamping the wire (11) when the two clamping surfaces (631) abut against each other; when the two clamping surfaces (631) are facing away from each other, the clamping cavity (A) releases the wire (11).
9. The mechanical loading device for 3D printer according to claim 1,
further comprising: a guide tube (700) is arranged on the inner wall of the guide tube,
is arranged between the wire outlet end of the wire (11) of the wire reel (10) and the wire pulling mechanism (600) and is configured to guide the wire (11) into the wire pulling 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 wire guiding mechanism (500) or the guide wheel (900).
10. A loading method of a mechanical loading device for a 3D printer according to any one of claims 1 to 9, characterized by comprising the steps of:
s10: the first driving assembly (210) drives the rotating arm (220) to rotate from the appointed station to the output port of the storage box (100), the grabbing assembly (230) grabs one wire reel (10), and the grabbing assembly (230) rotates the wire reel (10) to the appointed station;
s20: -driving the rotation of the gripping assembly (230) by the driving mechanism (300) so as to cause the wire reel (10) to release the wire (11);
s30: gripping the wire (11) by the wire pulling mechanism (600) according to claim 7 and moving in a horizontal direction to pull the wire (11) to the delivery mechanism (400) adjacent to the drive mechanism (300) and releasing the wire (11);
s40: the wire (11) is engaged and conveyed along the horizontal direction by a conveying mechanism (400) close to the driving mechanism (300);
s50: the wire (11) enters the wire feeding mechanism (500) as claimed in claim 2, the wire (11) is locked by the locking portion (520), then moved in the horizontal direction by the moving lever portion (510) to the input end of the other conveying mechanism (400), and the wire (11) is pivoted by the conveying mechanism (400) to the designated processing place of the 3D printer.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| CN115214136A true CN115214136A (en) | 2022-10-21 |
| CN115214136B CN115214136B (en) | 2023-05-26 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1163638A (en) * | 1967-02-27 | 1969-09-10 | Union Carbide Corp | Embossed Film of Thermoplastic Polymeric Material. |
| US3580018A (en) * | 1967-06-16 | 1971-05-25 | Evg Entwicklung Verwert Ges | Machine for coiling elongated striplike material |
| 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115214136B (en) | 2023-05-26 |
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