CN214983205U - A extruding means for 3D printer - Google Patents
A extruding means for 3D printer Download PDFInfo
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- CN214983205U CN214983205U CN202023225361.6U CN202023225361U CN214983205U CN 214983205 U CN214983205 U CN 214983205U CN 202023225361 U CN202023225361 U CN 202023225361U CN 214983205 U CN214983205 U CN 214983205U
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- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
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Abstract
The utility model discloses an extruding means for 3D printer belongs to 3D and prints technical field, and this extruding means for 3D printer includes the casing, send a subassembly, driving medium, elasticity piece and the pressing part that resets. The housing defines a receiving cavity. The wire feeding assembly is used for conveying consumables. The transmission part is connected with the wire feeding component, and the transmission part and the wire feeding component are arranged at intervals in the direction perpendicular to the transportation direction of the consumable. One end of the elastic reset piece is connected with the shell, and the other end of the elastic reset piece is abutted against the transmission piece. The pressing piece penetrates through the shell and abuts against the transmission piece, the pressing piece is provided with a release state and a locking state, the consumable material is released by the wire feeding assembly when the pressing piece is in the release state, the consumable material is clamped by the wire feeding assembly when the pressing piece is in the locking state, and the pressing piece can be switched between the release state and the locking state when stressed. This an extrusion mechanism for 3D printer can keep releasing the consumptive material, improves consumptive material change efficiency.
Description
Technical Field
The utility model relates to a 3D prints technical field, especially relates to an extrusion mechanism for 3D printer.
Background
Under the intelligent promotion of computer digital technology, the field that 3D printing technology was used is more and more wide, but the extruder among the prior art mostly needs the change that the manual operation depression bar realized the consumptive material. In the actual use reloading process, the squeeze bar needs to be pressed by a hand, the other hand is used for feeding wires, the operation is complex, reloading is not convenient, obvious negative feedback and discomfort are caused to a user after the squeeze bar is continuously pressed for a period of time, the use experience of the user is obviously reduced, and the reloading efficiency and the reloading quality are also obviously reduced. Meanwhile, the extrusion stem is usually required to extend outside the extruder body, resulting in poor aesthetics of the extruder.
Therefore, there is a need for an extrusion mechanism for a 3D printer, which can improve the replacement efficiency and the transportation reliability of consumables and improve the user experience.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an extruding means for 3D printer can improve the change efficiency and the transport reliability of consumptive material, improves user's use and experiences.
For realizing the technical effect, the utility model discloses a technical scheme for an extrusion mechanism of 3D printer as follows:
an extrusion mechanism for a 3D printer, comprising: a housing defining a receiving cavity; the wire feeding assembly is used for conveying consumables; the transmission piece is connected with the wire feeding assembly and arranged at intervals with the wire feeding assembly in the direction perpendicular to the transportation direction of the consumable; one end of the elastic resetting piece is connected with the shell, and the other end of the elastic resetting piece is abutted against the transmission piece; the wire feeding component is arranged in the shell and is abutted to the transmission component, the pressing component is provided with a release state and a locking state, the wire feeding component releases the consumable when the pressing component is in the release state, the wire feeding component clamps the consumable when the pressing component is in the locking state, and the pressing component can be switched between the release state and the locking state when stressed. Because the pressing piece can be at a lot of reciprocating motion between release state and the locking state, and can realize keeping drive assembly at locking state and release and return to the release state under the effect of piece that resets from locking state, make the user can keep when drive assembly keeps at locking state, adjust and send out the change to the consumptive material that send in the silk subassembly, simultaneously in extrusion mechanism's normal use process, drive assembly can keep at release state, thereby prevent to send a subassembly to release the consumptive material under drive assembly's drive, the centre gripping effect of sending a subassembly to the consumptive material has been ensured, the pay-off reliability of consumptive material has been improved.
Further, the pressing piece includes: the guide part is arranged on the inner wall of the shell; the pressing part can be reset and penetrates through the shell and the guide part; the pressing part is arranged in the pressing part, the pressing part is in the releasing state, the pressing part is in the locking state, and the pressing part can drive the abutting part to be abutted against the guiding part or abutted against the pressing part to switch when being stressed. The guide part, the pressing part and the abutting part can realize that the pressing part can reciprocate between a releasing state and a locking state when the pressing part is stressed.
Further, global of guide part is equipped with a plurality of spouts that set up along its axial direction, the terminal surface of guide part is equipped with a plurality of inclined plane groups, adjacent two be equipped with one between the spout inclined plane group, inclined plane group includes first inclined plane and second inclined plane, the terminal surface of butt portion is equipped with a plurality of cooperation pieces, and is a plurality of cooperation piece can slide into a plurality ofly one-to-one in the spout, the terminal surface of every cooperation piece is equipped with the third inclined plane, the third inclined plane can the butt on first inclined plane or follow the second inclined plane slides in butt joint in the spout press the splenium. The arrangement of the third inclined plane and the inclined plane group can better realize that the pressing piece is kept in a releasing state and returns to a locking state.
Furthermore, a plurality of limiting blocks are arranged on the circumferential surface of the pressing part, and the limiting blocks are slidably inserted into the sliding grooves in a one-to-one correspondence mode. The stopper can prevent to press the splenium to appear rotating phenomenon in the motion process.
Furthermore, the end face of the pressing part is provided with a plurality of matching teeth arranged along the circumferential surface of the pressing part, and the matching teeth can be matched with the matching blocks. The cooperation tooth can realize pressing the portion drive butt portion rotation with the cooperation of cooperation piece.
Further, the abutting portion includes: one end of the rotating part is matched with the guide part or the pressing part; the pushing part, the one end of pushing part with the portion of rotating is connected, and the other end butt the driving medium. The separation of the rotating portion and the pushing portion can reduce the maintenance cost of the abutting portion.
Further, one of the inner wall of the shell and the outer wall of the transmission member is provided with a guide groove, the other one of the inner wall of the shell and the outer wall of the transmission member is provided with a guide strip matched in the guide groove, and when the pressing member is switched between the releasing state and the locking state, the guide strip slides in the guide groove. The linear motion of driving medium can be realized better to guide way and gib block to make and send an subassembly release consumptive material.
Furthermore, one end of the transmission piece is rotatably connected to the inner wall of the shell, the other end of the transmission piece is abutted to the pressing piece, a connecting protrusion is arranged on the transmission piece, and the connecting protrusion is connected with the wire feeding assembly. The transmission part is connected with the shell in a rotating mode, so that the transmission part can rotate in the shell, and the wire feeding assembly can release consumables.
Further, the wire feed assembly comprises: the first wire feeding wheel is rotationally connected to the transmission part; and the second wire feeding wheel is rotatably connected to the inner wall of the shell and meshed and matched with the first wire feeding wheel. The first wire feeding wheel and the second wire feeding wheel can realize reliable movement of the consumable.
Further, the wire feeding assembly further comprises two wire guiding pieces, and the two wire guiding pieces are respectively arranged on two sides of the first wire feeding wheel and the second wire feeding wheel, so that the first wire feeding wheel and the second wire feeding wheel can clamp or release the consumable. The wire guide piece can enable the consumable part to move independently from the inner part of the shell, and reliable operation of the consumable part and the inner part of the shell is guaranteed.
The utility model has the advantages that: because the pressing piece can be at a lot of reciprocating motion between release state and the locking state, and can realize keeping drive assembly at locking state and release and return to the release state under the effect of piece that resets from locking state, make the user can keep when drive assembly keeps at locking state, adjust and send out the change to the consumptive material that send in the silk subassembly, simultaneously in extrusion mechanism's normal use process, drive assembly can keep at release state, thereby prevent to send a subassembly to release the consumptive material under drive assembly's drive, the centre gripping effect of sending a subassembly to the consumptive material has been ensured, the pay-off reliability of consumptive material has been improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an extrusion mechanism for a 3D printer provided in embodiment 1 of the present invention when a pressing member is in a locked state;
fig. 2 is a schematic structural diagram of an extrusion mechanism for a 3D printer according to embodiment 1 of the present invention when a pressing member is in a released state;
fig. 3 is a schematic structural view of the pressing portion provided in embodiments 1 and 2 of the present invention when the pressing portion abuts against the abutting portion;
fig. 4 is a schematic structural view of the pressing member provided in embodiments 1 and 2 of the present invention when the pressing portion abuts against the abutting portion;
fig. 5 is a schematic structural view of the pressing member provided in embodiments 1 and 2 of the present invention in a locked state;
fig. 6 is a schematic structural view of the pressing member provided in embodiments 1 and 2 of the present invention in a released state;
fig. 7 is a schematic structural diagram of an extrusion mechanism for a 3D printer according to embodiment 2 of the present invention when a pressing member is in a locked state;
fig. 8 is a schematic structural diagram of an extrusion mechanism for a 3D printer according to embodiment 2 of the present invention when a pressing member is in a released state.
Reference numerals
1. A housing; 11. a guide groove;
2. a wire feed assembly; 21. a first wire feeding wheel; 22. a second wire feeding wheel; 23. a wire guide;
3. a transmission member; 31. a connecting projection; 32. a rotating body; 33. a guide strip; 34. a fitting portion; 35. a connecting portion;
4. an elastic reset member;
6. a guide portion; 61. a chute; 62. a first inclined plane; 63. a second inclined plane;
7. a pressing part; 71. a limiting block; 72. matching teeth;
8. an abutting portion; 81. a matching block; 82. a third inclined plane; 83. a rotating part; 84. a pushing part.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless otherwise expressly specified or limited, the term "coupled" is to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.
It will be understood that the terms "length," "width," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship illustrated in the drawings that is used for convenience in describing and simplifying the present invention, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example 1
A specific structure of the extrusion mechanism for a 3D printer of the present embodiment is described with reference to fig. 1 to 6.
An embodiment of an extrusion mechanism for a 3D printer, as shown in fig. 1, to clamp or release consumables, includes a housing 1, a wire feeding assembly 2, a transmission member 3, an elastic reset member 4, and a pressing member. The housing 1 defines a receiving chamber. The wire feed assembly 2 is used for conveying consumables. The transmission part 3 is connected with the wire feeding component 2, and the transmission part 3 is arranged at intervals with the wire feeding component 2 in the direction perpendicular to the transportation direction of the consumable. One end of the elastic reset piece 4 is connected with the shell 1, and the other end of the elastic reset piece abuts against the transmission piece 3. The pressing piece is worn to establish in casing 1 and the butt on driving medium 3, and the pressing piece has release state and locking state, and when the pressing piece was located release state, send a subassembly 2 release consumptive materials, when the pressing piece was located locking state, send a subassembly 2 centre gripping consumptive materials, can make the pressing piece move to locking state by release state when pressing the pressing piece, perhaps move to release state by locking state.
Above-mentioned an extrusion mechanism for 3D printer, the user is when using extrusion mechanism, can realize the press part reciprocating motion between release state and locking state through pressing down the press part, and enable the press part and keep in release state, and operating personnel need not to make the press part keep in release state through manpower or external device, thereby make and send a subassembly 2 and can release the consumptive material for a long time, so that operating personnel both hands are from sending the consumptive material that a subassembly 2 was sent in the change or adjustment, very big improvement operating personnel's reloading efficiency and comfort level. When the consumptive material was changed and is accomplished, operating personnel can press the pressing piece once more and make it break away from the release state and return to the locking state to make and send a subassembly 2 to stably centre gripping consumptive material, in order to accomplish and send a or retrieve the process. Meanwhile, the elastic reset piece 4 can facilitate the reset of the pressing piece from one of the release state and the locking state to the other, thereby facilitating the operation of an operator. For the use of the extrusion mechanism of this embodiment of convenience, when the pressing piece is located the release state, elasticity resets 4 and is in compression state, and when the pressing piece is located locking state, elasticity resets 4 and is in the state of relaxing, so can make the pressing piece can reset under the effect that elasticity resets 4, certainly the utility model discloses an in other embodiments, elasticity resets 4 also can compress when the pressing piece is in locking state, relaxes when the pressing piece is in release state, need not to carry out concrete limit. In addition, for the convenience of extruding means's assembly equipment, elasticity resets 4 and can set up to the spring, of course the utility model discloses in other embodiments, elasticity resets 4 and also can set up to extension spring isotructures. Because the extrusion mechanism of this embodiment does not set up the extra pressure ram that stretches out in the outside of casing 1, and owing to only set up a pressing piece, can form the outstanding chamber that holds of leakproofness in making casing 1, make the difficult entering of dust debris hold the chamber, ensured the clean environment that holds the chamber, can show improvement feeding mechanism's aesthetic property, also can further improve operating personnel's use convenience.
In addition, for the convenience of adjusting elasticity and restoring 4 butt on driving medium 3, elasticity restores 4 including knob and elasticity portion, the knob wear to establish in casing 1 and with 1 screw-thread fit of casing, the one end butt of elasticity portion is on the knob, the other end butt is on driving medium 3, can adjust the position of feeding component 2 in casing 1 when the elasticity portion is located the position of relaxing through the cooperation position of adjustment knob on casing 1, thereby can adjust feeding component 2 and press from both sides the tight dynamics to the material when the centre gripping material, be favorable to guaranteeing the reliability of sending a silk to different consumptive materials, in order to improve feeding mechanism's application scope.
In the present embodiment, as shown in fig. 3 to 6, the pressing piece includes the guide portion 6, the pressing portion 7, and the abutting portion 8. The guide portion 6 is provided on the inner wall of the housing 1. The pressing portion 7 is resettably inserted in the housing 1 and the guide portion 6. The abutting part 8 is arranged in the guide part 6 in a penetrating mode, one end of the abutting part 8 can abut against the guide part 6 or press the part 7, the other end of the abutting part 8 abuts against the transmission part 3, the abutting part 8 and the pressing part 7 and the guide part 6 are arranged coaxially, and when the pressing part 7 drives the abutting part 8 to move along the axial direction, the abutting part 8 can be driven to rotate, and the abutting part 8 is limited by the guide part 6 when rotating by a preset angle.
Specifically, the guide portion 6, the pressing portion 7, and the abutting portion 8 are all cylindrical. Operating personnel can press and press portion 7 to make its relative casing 1 motion, press portion 7 and can drive butt portion 8 motion in the motion process, can also drive butt portion 8 simultaneously and rotate along its circumferential direction, can be spacing by guide part 6 when butt portion 8 rotates and predetermines the angle to make the whole release state that gets into of pressing piece and can keep in the release state, thereby be convenient for send a subassembly 2 to keep releasing the consumptive material, the operating personnel of being convenient for operates. When operating personnel finishes changing the consumptive material, can press once more and press splenium 7, press splenium 7 to drive butt portion 8 motion once more this moment, and make butt portion 8 rotate along its circumferential direction, butt portion 8 can break away from the spacing of guide part 6 at the rotation in-process, break away from the spacing back of guide part 6 when butt portion 8, elasticity resets piece 4 and can apply elastic force to butt portion 8, and make butt portion 8 along the opposite direction motion of pressing the direction, butt portion 8 butt this moment in pressing splenium 7 and drive and press splenium 7 return, finally make press piece return to locking state, and make and send a subassembly 2 returns to locking state, thereby be convenient for extrusion mechanism accomplishes sending of consumptive material or retrieving.
In the present embodiment, as shown in fig. 3 to 6, the circumferential surface of the guide portion 6 is provided with a plurality of sliding grooves 61 arranged along the axial direction thereof, the end surface of the guide portion 6 is provided with a plurality of slope groups, one slope group is arranged between two adjacent sliding grooves 61, each slope group includes a first slope 62 and a second slope 63, the end surface of the abutting portion 8 is provided with a plurality of engaging blocks 81, each engaging block 81 can slide into one sliding groove 61, the end surface of each engaging block 81 is provided with a third slope 82, and the third slope 82 can abut against the first slope 62 or slide into the sliding groove 61 along the second slope 63.
When the pressing piece is in a locking state, the matching block 81 is located in the sliding groove 61, the pressing part 7 can drive the abutting part 8 to move, and in the moving process, the abutting part 8 cannot rotate under the action of the sliding groove 61 and the matching block 81; when the matching block 81 is separated from the sliding groove 61, the pressing part 7 continuously drives the abutting part 8 to move, at this time, the abutting part 8 is driven by the pressing part 7 to rotate along the circumferential direction of the pressing part, and after the abutting part 8 rotates by a preset angle, the third inclined surface 82 on the end surface of the matching block 81 can be matched with the first inclined surface 62; at this time, the operator releases the pressing part 7, the abutting part 8 moves back under the action of the elastic reset piece 4, and in the process of returning the abutting part 8, the third inclined surface 82 is matched with the first inclined surface 62 and enables the abutting part 8 to move to the bottom of the first inclined surface 62, so that the matching block 81 on the inclined surface group limiting abutting part 8 on the end surface of the guide part 6 is enabled, and the pressing piece enters a releasing state and is kept in the releasing state. When the pressing piece is required to move to a locking state, an operator presses the pressing part 7 until the third inclined surface 82 is separated from the first inclined surface 62, the operator continues to press the pressing part 7, the abutting part 8 starts to rotate, and the third inclined surface 82 can be matched with the second inclined surface 63 after the abutting part 8 rotates; operating personnel release this moment presses splenium 7, butt portion 8 return motion under the effect of elasticity piece 4 that resets, and third inclined plane 82 and the cooperation of second inclined plane 63, because third inclined plane 82 can follow second inclined plane 63 and slide into spout 61, thereby make butt portion 8 continuous motion under the effect of elasticity piece 4 that resets until cooperation piece 81 slide into spout 61 in, after cooperation piece 81 moves one section distance, elasticity piece 4 that resets gets into the state of relaxing and no longer drives butt portion 8 motion, thereby make the pressing piece get into locking state, send a subassembly 2 centre gripping consumptive material, thereby be convenient for extrusion mechanism's normal motion and next time send a subassembly 2 release consumptive materials through the pressing piece drive.
In the present embodiment, as shown in fig. 3 to 6, a plurality of stoppers 71 are provided on the circumferential surface of the pressing portion 7, and each stopper 71 is slidably inserted into one sliding groove 61. The cooperation of stopper 71 and spout 61 can be convenient for press the motion of splenium 7 in guide part 6 to prevent to press splenium 7 to rotate at motion in relative guide part 6, thereby ensured pressing the accurate cooperation between splenium 7, guide part 6 and the butt portion 8 three, be favorable to the accurate motion of pressing the piece between release state and locking state promptly.
In the present embodiment, as shown in fig. 3 to 6, the end surface of the pressing portion 7 is provided with a plurality of engaging teeth 72 provided along the circumferential surface thereof, and the engaging teeth 72 can be engaged with the engaging block 81. When the pressing member is in a released state, the third inclined surface 82 abuts against the first inclined surface 62, the pressing portion 7 can drive the abutting portion 8 to move axially away from the guide portion 6 when being pressed, when the abutting portion 8 is axially away from the guide portion 6, the abutting portion 8 rotates relative to the pressing portion 7 under the guidance of the engaging tooth 72, when the external force applied to the pressing portion 7 is eliminated, the abutting portion 8 moves towards the guide portion 6 under the action of the restoring force of the elastic restoring member 3, at this time, the third inclined surface 82 abuts against the second inclined surface 63 due to the fact that the abutting portion 8 rotates relative to the guide portion 6 by a set angle, then under the guidance of the second inclined surface 63, the third inclined surface 82 slides into the sliding groove 61 to abut against the engaging tooth 72, so that the pressing member is in a locked state, when the pressing portion 7 is pressed again, the third inclined surface 82 can be driven to be disengaged from the sliding groove 61, and then under the guidance of the engaging tooth 72 again, the abutting portion 8 rotates a set angle relative to the pressing portion 7, when the external force applied to the pressing portion 7 is removed, the abutting portion 8 moves toward the guide portion 6 under the action of the restoring force of the elastic restoring member 3, and at this time, the abutting portion 8 rotates a set angle relative to the guide portion 6, so that the third inclined surface 82 abuts against the first inclined surface 62, and the pressing member is in a release state.
In the present embodiment, as shown in fig. 3, the abutting portion 8 includes a rotating portion 83 and a pushing portion 84. One end of the rotating portion 83 is engaged with the guide portion 6 or the pressing portion 7. One end of the pushing portion 84 is connected to the rotating portion 83, and the other end abuts against the transmission member 3. The abutting portion 8 is divided into two structures, i.e., the rotating portion 83 and the pushing portion 84, so that the rotating portion 83 or the pushing portion 84 can be replaced when the abutting portion 8 fails, which can facilitate reduction of maintenance cost of the abutting portion 8. Of course, in other embodiments of the present invention, the rotating portion 83 and the pushing portion 84 can also be formed as an integral molding to reduce the processing cost of the abutting portion 8.
Specifically, one end of the pushing portion 84 abutting against the transmission member 3 can be set to be a spherical surface, so that the pushing portion 84 and the transmission member 3 are in point contact, and the pushing portion 84 can drive the transmission member 3 to move, thereby reducing the possibility of interference and jamming between the pressing member and the transmission member 3. Of course, in other embodiments of the present invention, the end surface of the pushing portion 84 can also be set to be a cambered surface, so that the pushing portion 84 and the transmission member 3 are in line contact, and a reliable transmission effect can also be achieved.
In the present embodiment, as shown in fig. 1 and fig. 2, one end of the transmission member 3 is rotatably connected to the inner wall of the housing 1, the other end of the transmission member abuts against the pressing member, a connection protrusion 31 is provided on the transmission member 3, and the connection protrusion 31 is connected to the wire feeding assembly 2. Because the one end and the casing 1 of driving medium 3 rotate to be connected, other end butt pressing member makes pressing member drive driving medium 3 comparatively laborsaving during the motion to dynamics size when reducing operating personnel operation pressing member, thereby extension extrusion mechanism's life. In addition, the connection protrusion 31 can facilitate the interval arrangement of the transmission member 3 and the wire feeding assembly 2, so as to prevent the interference phenomenon between the wire feeding assembly 2 and the transmission member 3, thereby ensuring the normal operation of the extruding mechanism. Specifically, as shown in fig. 2, the transmission member 3 includes a rotating body 32 and a coupling projection 31 provided on the rotating body 32.
In the present embodiment, as shown in fig. 1 and 2, the wire feeding assembly 2 includes a first wire feeding wheel 21 and a second wire feeding wheel 22. The first wire feeding wheel 21 is rotatably connected to the transmission member 3. The second wire feeding wheel 22 is rotatably connected to the inner wall of the housing 1, and the second wire feeding wheel 22 is engaged with the first wire feeding wheel 21.
Because first wire feeding wheel 21 can mesh with second wire feeding wheel 22, when sending a 2 centre gripping consumptive materials of subassembly, first wire feeding wheel 21 and second wire feeding wheel 22 press from both sides tight consumptive material promptly, second wire feeding wheel 22 rotates simultaneously and can drive first wire feeding wheel 21 and rotate, because the consumptive material centre gripping with first wire feeding wheel 21 and second send between wire feeding wheel 22, make first wire feeding wheel 21 and second send wire wheel 22 to drive the consumptive material motion, the rotation direction of sending wire wheel 22 through the adjustment second again is anticlockwise or clockwise, can realize that the consumptive material accomplishes the pay-off under double key feeding mechanism's drive or withdraw.
In the present embodiment, as shown in fig. 1, the wire feeding assembly 2 further includes two wire guiding members 23, and the two wire guiding members 23 are respectively disposed at two sides of the first wire feeding wheel 21 and the second wire feeding wheel 22, so that the first wire feeding wheel 21 and the second wire feeding wheel 22 can clamp or release the consumable material.
The wire guide 23 can be convenient for play spacing effect to the motion of the consumptive material in the extrusion mechanism, make first wire feeding wheel 21 and second wire feeding wheel 22 can drive the consumptive material along predetermineeing the direction motion to make the consumptive material move to the opposite side by one side of casing 1 reliably. In addition, because two silk guide members 23 are established in the both sides of first silk wheel 21 and second silk wheel 22 of sending, make the consumptive material can not appear interfering with other structures in casings 1 such as driving medium 3 in the motion process, pressing member, elasticity resets 4, make the motion of consumptive material and the part motion in the casing 1 be independent mutually, both guaranteed pressing member, the normal motion of driving medium 3 and elasticity reset 4, also guaranteed reliable the sending out or retrieving of consumptive material, the operating stability of extrusion mechanism has been improved.
Example 2
The utility model discloses still disclose another kind of extrusion mechanism for 3D printer, the extrusion mechanism for 3D printer of this embodiment is the same with embodiment 1's structure generally, and the two difference mainly is the structure of driving medium 3, only makes the description to the two difference here, and this embodiment and the same structure of embodiment 1 are no longer repeated here.
As shown in fig. 7 and 8, in the present embodiment, one of the inner wall of the housing 1 and the outer wall of the transmission member 3 is provided with the guide groove 11, and the other is provided with the guide strip 33 fitted in the guide groove 11, and the guide strip 33 slides in the guide groove 11 when the pressing member is moved between the released state and the locked state.
Specifically, in the present embodiment, as shown in fig. 7 and 8, the transmission member 3 includes two fitting portions 34 and a connecting portion 35. Two matching parts 34 are arranged at intervals, one matching part 34 abuts against the pressing piece, and the other matching part 34 is connected with the wire feeding assembly 2. The connecting portion 35 is connected to the two fitting portions 34, and the connecting portion 35 is provided with the guide groove 11 or the guide strip 33. The setting of connecting portion 35 can play the effect of stepping down to the transport of consumptive material to reduce the driving medium 3 and send the interference possibility between the silk subassembly 2, ensured the reliable motion of consumptive material and driving medium 3.
In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. An extrusion mechanism for a 3D printer, comprising:
a housing (1) defining a housing cavity;
the wire feeding assembly (2) is used for conveying consumables;
the transmission piece (3) is connected with the wire feeding assembly (2), and the transmission piece (3) and the wire feeding assembly (2) are arranged at intervals in the direction perpendicular to the transportation direction of the consumable;
one end of the elastic resetting piece (4) is connected with the shell (1), and the other end of the elastic resetting piece is abutted against the transmission piece (3);
the pressing piece penetrates through the shell (1) and abuts against the transmission piece (3), the pressing piece has a release state and a locking state, when the pressing piece is in the release state, the consumable is released by the wire feeding assembly (2), when the pressing piece is in the locking state, the consumable is clamped by the wire feeding assembly (2), and when the pressing piece is stressed, the pressing piece can be switched between the release state and the locking state.
2. The extrusion mechanism for a 3D printer according to claim 1, wherein the pressing piece comprises:
a guide part (6) arranged on the inner wall of the shell (1);
the pressing part (7) can be reset and penetrated in the shell (1) and the guide part (6);
the pressing piece is in the release state when the abutting part (8) abuts against the guide part (6), the pressing piece is in the locking state when the abutting part (8) abuts against the pressing part (7), and the abutting part (8) can drive the abutting part (8) to switch between abutting against the guide part (6) or abutting against the pressing part (7) when the pressing part (7) is stressed when the pressing part (7) is in the locking state.
3. The extrusion mechanism for the 3D printer according to claim 2, wherein a plurality of sliding grooves (61) are formed in the circumferential surface of the guide portion (6) along the axial direction of the guide portion, a plurality of inclined surface groups are formed in the end surface of the guide portion (6), one inclined surface group is arranged between two adjacent sliding grooves (61), each inclined surface group comprises a first inclined surface (62) and a second inclined surface (63), a plurality of matching blocks (81) are arranged on the end surface of the abutting portion (8), the matching blocks (81) can slide into the sliding grooves (61) in a one-to-one correspondence manner, a third inclined surface (82) is arranged on the end surface of each matching block (81), and the third inclined surface (82) can abut against the first inclined surface (62) or slide into the sliding grooves (61) along the second inclined surface (63) to abut against the pressing portion (7).
4. The extrusion mechanism for the 3D printer according to claim 3, wherein a plurality of limiting blocks (71) are arranged on the circumferential surface of the pressing portion (7), and the limiting blocks (71) are slidably inserted into the sliding grooves (61) in a one-to-one correspondence manner.
5. The extrusion mechanism for a 3D printer according to claim 3, wherein an end face of the pressing portion (7) is provided with a plurality of engaging teeth (72) provided along a circumferential surface thereof, the engaging teeth (72) being engageable with the engaging block (81).
6. The extrusion mechanism for a 3D printer according to claim 2, wherein the abutment (8) comprises:
a rotating part (83) with one end matched with the guide part (6) or the pressing part (7);
and a pushing part (84), one end of which is connected with the rotating part (83), and the other end of which is abutted against the transmission piece (3).
7. The extrusion mechanism for a 3D printer according to any one of claims 1 to 6, characterized in that one of the inner wall of the housing (1) and the outer wall of the transmission member (3) is provided with a guide groove (11), and the other is provided with a guide strip (33) fitted in the guide groove (11), the guide strip (33) sliding in the guide groove (11) when the pressing member is switched between the released state and the locked state.
8. The extrusion mechanism for a 3D printer according to any one of claims 1 to 6, wherein one end of the transmission member (3) is rotatably connected to the inner wall of the housing (1), the other end of the transmission member abuts against the pressing member, a connecting protrusion (31) is arranged on the transmission member (3), and the connecting protrusion (31) is connected with the wire feeding assembly (2).
9. The extrusion mechanism for a 3D printer according to any one of claims 1-6, wherein the wire feed assembly (2) comprises:
the first wire feeding wheel (21) is rotationally connected to the transmission piece (3);
and the second wire feeding wheel (22) is rotatably connected to the inner wall of the shell (1), and the second wire feeding wheel (22) is meshed and matched with the first wire feeding wheel (21).
10. The extrusion mechanism for a 3D printer according to claim 9, characterized in that the wire feed assembly (2) further comprises two wire guides (23), the two wire guides (23) being provided on either side of the first wire feed wheel (21) and the second wire feed wheel (22), respectively, to enable the first wire feed wheel (21) and the second wire feed wheel (22) to grip or release the consumable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023225361.6U CN214983205U (en) | 2020-12-28 | 2020-12-28 | A extruding means for 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023225361.6U CN214983205U (en) | 2020-12-28 | 2020-12-28 | A extruding means for 3D printer |
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| CN214983205U true CN214983205U (en) | 2021-12-03 |
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| CN202023225361.6U Active CN214983205U (en) | 2020-12-28 | 2020-12-28 | A extruding means for 3D printer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115407636A (en) * | 2022-09-13 | 2022-11-29 | 上海靖和实业有限公司 | Watch timing mechanism and watch thereof |
| WO2023184718A1 (en) * | 2022-04-01 | 2023-10-05 | Jiangsu Haoyu Electronic Technology Co., Ltd | Handheld 3d drawing arrangement and reciprocating filament moving system and filament moving method thereof |
| CN117359937A (en) * | 2023-12-01 | 2024-01-09 | 南京瑞展新材料科技有限公司 | Intelligence 3D printer convenient to consumptive material switches |
| CN119636060A (en) * | 2024-12-20 | 2025-03-18 | 芜湖市爱三迪电子科技有限公司 | Cutterless multi-color printing device |
-
2020
- 2020-12-28 CN CN202023225361.6U patent/CN214983205U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023184718A1 (en) * | 2022-04-01 | 2023-10-05 | Jiangsu Haoyu Electronic Technology Co., Ltd | Handheld 3d drawing arrangement and reciprocating filament moving system and filament moving method thereof |
| CN115407636A (en) * | 2022-09-13 | 2022-11-29 | 上海靖和实业有限公司 | Watch timing mechanism and watch thereof |
| CN117359937A (en) * | 2023-12-01 | 2024-01-09 | 南京瑞展新材料科技有限公司 | Intelligence 3D printer convenient to consumptive material switches |
| CN117359937B (en) * | 2023-12-01 | 2024-02-20 | 南京瑞展新材料科技有限公司 | Intelligence 3D printer convenient to consumptive material switches |
| CN119636060A (en) * | 2024-12-20 | 2025-03-18 | 芜湖市爱三迪电子科技有限公司 | Cutterless multi-color printing device |
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