CN208247471U - A kind of automatic material-changing device based on FDM mode 3D printing - Google Patents
A kind of automatic material-changing device based on FDM mode 3D printing Download PDFInfo
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- CN208247471U CN208247471U CN201820575431.4U CN201820575431U CN208247471U CN 208247471 U CN208247471 U CN 208247471U CN 201820575431 U CN201820575431 U CN 201820575431U CN 208247471 U CN208247471 U CN 208247471U
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- fixedly connected
- cabinet
- turntable
- motor
- changing device
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Abstract
The utility model discloses a kind of automatic material-changing devices based on FDM mode 3D printing, including cabinet, the bottom of cabinet wall is fixedly connected with first motor by motor fixing plate, the output shaft end of first motor is fixedly connected with rotating device, the side of rotating device is fixedly connected with turntable by shaft, gravity sensor is fixedly connected at the top of turntable, the top vertical of gravity sensor is fixedly connected with material roller support frame, material roller support frame is fixedly connected with color recognition sensor close to the side of material roller, first rotating turret, feeding cylinder is fixedly connected at the top of second rotating turret, the two sides that the inner wall of feeding cylinder is opposite have been respectively fixedly connected with infrared emission tube, infrared receiver tube, the side of cabinet wall bottom is fixedly connected with locking system, the utility model relates to 3D printing technique fields.Automatic material-changing device of this kind based on FDM mode 3D printing solves the problems, such as that single nozzle can only print a kind of color, while not capableing of working long hours for fracture.
Description
Technical field
The utility model relates to 3D printing technique field, specially a kind of dress that reloads automatically based on FDM mode 3D printing
It sets.
Background technique
3D printing, that is, rapid shaping technique one kind, it is one kind based on digital model file, with powdered gold
Belong to or the adhesive materials such as plastics, constructs the technology of object by layer-by-layer printing.3D printing is usually using number
Technologic material printer is realized.Often be used for modeling in fields such as mold manufacture, industrial designs, after be gradually available for one
The direct manufacture of a little products has had using components made of the printing of this technology, a variety of face is usually required in 3D printing
The material of color has multiple spray heads successively to complete, and manufacturing cost is big, while will appear the case where lacking material in print procedure, influences
Printing progress.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of dress that reloads automatically based on FDM mode 3D printing
It sets, solves the problems, such as that single nozzle can only print a kind of color, while not capableing of working long hours for fracture.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: one kind is beaten based on FDM mode 3D
The automatic material-changing device of print, including cabinet, the bottom of the cabinet wall are fixedly connected with motor fixing plate, the motor vertically
The side of fixed plate is fixedly connected with first motor, and the output shaft end of the first motor is fixedly connected with rotating device, described
The side of rotating device is fixedly connected with shaft, and turntable is fixedly connected at the top of the shaft, and the top of the turntable is fixed
It is connected with connecting rod, the connecting rod runs through the top of cabinet wall far from one end of turntable and extends to the top of cabinet, institute
It states connecting rod and extends to one end of top of the box and be fixedly connected with hanging head, be fixedly connected with gravity sensitive at the top of the turntable
Device, the top vertical of the gravity sensor are fixedly connected with material roller support frame, the center rotating connection of the material roller support frame
There is a central axis, the surface of the central axis and is located between material roller support frame and is fixedly connected with material roller, one end of the central axis
It is fixedly connected with the first belt pulley, the top of the turntable and the close side for expecting roller support frame are fixedly connected with material roller driving electricity
Machine, the output shaft end of the material roll drive motor are fixedly connected with the second belt pulley, first belt pulley and the second belt pulley
Surface by the first belt be sequentially connected, the material roller support frame close to material roller side be fixedly connected with color recognition sensing
Device, the cabinet wall bottom side are successively fixedly connected with the first rotating turret, the second rotating turret, first rotating turret vertically
Center rotating be connected with the first transmission shaft, the surface of first transmission shaft and being located in the first rotating turret is fixedly connected with the
One into roll dies wheel, and one end of first transmission shaft is fixedly connected with first gear, and the center rotating of second rotating turret connects
It is connected to second driving shaft, the surface of the second driving shaft and being located in the second rotating turret is fixedly connected with second into roll dies wheel,
One end of the second driving shaft, which is fixedly connected sequentially, second gear, third belt pulley, the first gear and second gear
Engagement connection, the bottom of the cabinet wall and is fixedly connected with the second motor close to the side of the second rotating turret, and described second
The output shaft end of motor is fixedly connected with the 4th belt pulley, and the surface of the third belt pulley and the 4th belt pulley passes through the second skin
V belt translation connects, and is fixedly connected with feeding cylinder, the inner wall phase of the feeding cylinder at the top of first rotating turret, the second rotating turret
Pair two sides be respectively fixedly connected with infrared emission tube, infrared receiver tube, the side of the cabinet wall bottom is fixed to be connected
It is connected to locking system.
Preferably, the rotating device includes active driver plate, sheave, is fixedly connected with convex arc at the top of the active driver plate
Lock plate is fixedly connected with straight pin at the top edge of the active driver plate, and the surface of the sheave offers radial slot, institute
The side for stating sheave is provided with concave arc locking surface, and the straight pin is slidably connected with radial slot.
Preferably, the center of the active driver plate is fixedly connected with the output shaft end of first motor, the center of the sheave
It is fixedly connected with the surface of shaft.
Preferably, the locking system includes third motor and pedestal, and the center rotating of the pedestal is connected with screw rod, institute
The one end for stating screw rod is fixedly connected by shaft coupling with the output shaft end of third motor, and the surface of the screw rod is threaded with shifting
The bottom of motion block, the movable block runs through the bottom of cabinet wall and extends to the outside of cabinet, and the movable block extends to case
One end outside body is fixedly connected with gripping block, and the surface of the screw rod is fixedly connected with limited block.
Preferably, the left side of the screw rod is left hand thread, and the right side of the screw rod is right-handed thread, the movable block position
It in the two sides of screw rod, and is symmetrical arranged, the gripping block is V-block, and the gripping block is adapted with spray head.
Preferably, the turntable is disk, and the quantity of the connecting rod is four, and is uniformly distributed in the edge of turntable
Place.
Preferably, the top slide of the hanging head and cabinet connects, and offers at the top of the cabinet and to be adapted to hanging head
Sliding slot.
Preferably, the quantity of the material roller is five, is uniformly distributed in the top of turntable.
Preferably, the surface of the turntable and be located at material roller opposite position offer horn-like through-hole, the cabinet
Top offers the through-hole being adapted to turntable.
Preferably, the bottom of the cabinet wall offers the through-hole being adapted to locking system, the bottom of the cabinet wall
Portion and be located at feeding cylinder opposite position offer discharge port.
(3) beneficial effect
The utility model provides a kind of automatic material-changing device based on FDM mode 3D printing.Have it is following the utility model has the advantages that
(1), automatic material-changing device of this kind based on FDM mode 3D printing, the output shaft end of first motor are fixedly connected with
Rotating device, the side of the rotating device are fixedly connected with shaft, turntable are fixedly connected at the top of the shaft, turntable
Top is fixedly connected with material roller support frame by gravity sensor, and the center rotating of the material roller support frame is connected with central axis,
The surface of the central axis and be located between material roller support frame and be fixedly connected with material roller, the material roller support frame close to material roller one
Side is fixedly connected with color recognition sensor, expects that the quantity of roller is five, is uniformly distributed in the top of turntable, is passed by gravity
Sensor and color recognition sensor can timely find that the problem of material deficiency, timely added material avoid in print procedure
There is the case where fracture；Simultaneously by multistation, the material of different colours can be installed respectively, realize that single nozzle can complete spray more
The function of head.
(2), automatic material-changing device of this kind based on FDM mode 3D printing, cabinet wall bottom side are successively fixed vertically
It is connected with the first rotating turret, the second rotating turret, first rotating turret is fixedly connected with first into silk by the first transmission shaft
Roller, the center of second rotating turret are fixedly connected with second into roll dies wheel by second driving shaft, first rotating turret,
Feeding cylinder is fixedly connected at the top of second rotating turret, the opposite two sides of the inner wall of the feeding cylinder have been respectively fixedly connected with infrared
The side of line transmitting tube, infrared receiver tube, the cabinet wall bottom is fixedly connected with locking system, by real into roll dies wheel
Show the automatic into silk of printed material, while printed material can detect whether by infrared emission tube, infrared receiver tube,
To determine the working condition of printer, locking is carried out to spray head using locking system, is further ensured that and is being lacked material or reloading
Printer pause works in journey.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is enlarged drawing at A in the utility model Fig. 1；
Fig. 3 is the utility model structure top view；
Fig. 4 is the structural schematic diagram of the utility model rotating device；
Fig. 5 is the structural schematic diagram of the utility model locking system.
In figure: 1- cabinet, 2- motor fixing plate, 3- first motor, 4- rotating device, 41- active driver plate, 42- convex arc lock
Only disk, 43- straight pin, 44- sheave, 45- radial slot, 46- concave arc locking surface, 5- shaft, 6- turntable, 7- connecting rod, 8- hanging head,
9- gravity sensor, 10- material roller support frame, 11- central axis, 12- material roller, the first belt pulley of 13-, 14- material roll drive motor,
The second belt pulley of 15-, the first belt of 16-, 17- color recognition sensor, the first rotating turret of 18-, the second rotating turret of 19-, 20-
One transmission shaft, 21- first are into roll dies wheel, 22- first gear, 23- second driving shaft, 24- second into roll dies wheel, the second tooth of 25-
Wheel, 26- third belt pulley, the second motor of 27-, the 4th belt pulley of 28-, the second belt of 29-, 30- feeding cylinder, 31- infrared ray hair
Penetrate pipe, 32- infrared receiver tube, 33- locking system, 331- third motor, 332- pedestal, 333- screw rod, 334- shaft coupling,
335- movable block, 336- gripping block, 337- limited block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of moving certainly based on FDM mode 3D printing
Expect device, including cabinet 1, the bottom of 1 inner wall of cabinet is fixedly connected with motor fixing plate 2 vertically, and the side of motor fixing plate 2 is solid
Surely it is connected with first motor 3, the output shaft end of first motor 3 is fixedly connected with rotating device 4, and rotating device 4 includes actively dialling
Disk 41, sheave 44, the top of active driver plate 41 are fixedly connected with convex arc lock plate 42, fix at the top edge of active driver plate 41
It is connected with straight pin 43, the surface of sheave 44 offers radial slot 45, and the side of sheave 44 is provided with concave arc locking surface 46, cylinder
Pin 43 is slidably connected with radial slot 45, and the side of rotating device 4 is fixedly connected with shaft 5, the center of active driver plate 41 and first
The output shaft end of motor 3 is fixedly connected, and the center of sheave 44 is fixedly connected with the surface of shaft 5, and the top of shaft 5 is fixedly connected
There is turntable 6, realize five stations of turntable 6, so as to accommodate the material of five kinds of colors, realizes single nozzle multiple color
Printing.The top of turntable 6 is fixedly connected with connecting rod 7, and connecting rod 7 runs through the top of 1 inner wall of cabinet simultaneously far from one end of turntable 6
The top of cabinet 1 is extended to, one end that connecting rod 7 extends to 1 top of cabinet is fixedly connected with hanging head 8, and turntable 6 is disk, even
The quantity of extension bar 7 is four, and is uniformly distributed in the edge of turntable 6, and hanging head 8 is connect with the top slide of cabinet 1, cabinet
1 top offers the sliding slot being adapted to hanging head 8, ensure that the stable rotation of turntable 6.The top of turntable 6 is fixedly connected with weight
Force snesor 9, the top vertical of gravity sensor 9 are fixedly connected with material roller support frame 10, expect the center rotating of roller support frame 10
It is connected with central axis 11, the surface of central axis 11 and is located between material roller support frame 10 and is fixedly connected with material roller 12, pass through gravity
The variation of material on the detection material roller 12 of sensor 9, when material deficiency, by the timely alarm of gravity sensor 9, the one of central axis 11
End is fixedly connected with the first belt pulley 13, and the top of turntable 6 and the close side for expecting roller support frame 10 are fixedly connected with material roller and drive
The output shaft end of dynamic motor 14, material roll drive motor 14 is fixedly connected with the second belt pulley 15, the first belt pulley 13 and the second skin
The surface of belt wheel 15 is sequentially connected by the first belt 16, realizes the rotation of material roller 12, material roller support frame 10 is close to material roller 12
Side is fixedly connected with color recognition sensor 17, and the color of material, corresponding to carry out feeding on identification material roller 12.Expect the number of roller 12
Amount is five, is uniformly distributed in the top of turntable 6, the surface of turntable 6 and is located at material 12 opposite position of roller and offers loudspeaker
Shape through-hole, convenient for the interspersed of material, the top of cabinet 1 offers the through-hole being adapted to turntable 6,1 inner wall bottom side of cabinet according to
Secondary to be fixedly connected with the first rotating turret 18, the second rotating turret 19 vertically, the center rotating of the first rotating turret 18 is connected with the first biography
Moving axis 20, the surface of the first transmission shaft 20 and is located in the first rotating turret 18 and is fixedly connected with first into roll dies wheel 21, and first passes
One end of moving axis 20 is fixedly connected with first gear 22, and the center rotating of the second rotating turret 19 is connected with second driving shaft 23, the
The surface of two transmission shafts 23 and it is located in the second rotating turret 19 and is fixedly connected with second into roll dies wheel 24, the one of second driving shaft 23
End is fixedly connected sequentially and has second gear 25, third belt pulley 26, and first gear 22 engages connection, cabinet 1 with second gear 25
The bottom of inner wall and the side of close second rotating turret 19 are fixedly connected with the second motor 27, and the output shaft end of the second motor 27 is solid
Surely it is connected with the 4th belt pulley 28, the surface of third belt pulley 26 and the 4th belt pulley 28 is sequentially connected by the second belt 29,
Realize material auto-feed, the first rotating turret 18, the second rotating turret 19 top be fixedly connected with feeding cylinder 30, feeding cylinder 30
The opposite two sides of inner wall be respectively fixedly connected with infrared emission tube 31, infrared receiver tube 32, incuding in feeding cylinder 30 is
It is no to have material, to determine the operating of printer.The side of 1 inner wall bottom of cabinet is fixedly connected with locking system 33, locking dress
Setting 33 includes third motor 331 and pedestal 332, and the center rotating of pedestal 332 is connected with screw rod 333, and one end of screw rod 333 passes through
Shaft coupling 334 is fixedly connected with the output shaft end of third motor 331, and the surface of screw rod 333 is threaded with movable block 335, is moved
The bottom of motion block 335 runs through the bottom of 1 inner wall of cabinet and extends to the outside of cabinet 1, and movable block 335 extends to outside cabinet 1
One end be fixedly connected with gripping block 336, the surface of screw rod 333 is fixedly connected with limited block 337, and the left side of screw rod 333 is a left side
Screw thread is revolved, the right side of screw rod 333 is right-handed thread, and movable block 335 is located at the two sides of screw rod 333, and is symmetrical arranged, gripping block
336 be V-block, and gripping block 336 is adapted with spray head, realizes the fixation to spray head, avoids the movement of spray head during reloading,
It ensure that the safety of printer.The bottom of 1 inner wall of cabinet offers the through-hole being adapted to locking system 33, the bottom of 1 inner wall of cabinet
Portion and be located at 30 opposite position of feeding cylinder offer discharge port.
When work, the material of various colors is put into material roller 12, when needing to reload, belt is passed through by the second motor 27
Transmission and gear drive drive first to rotate into roll dies wheel 21, second into roll dies wheel 24, while corresponding first motor 3 starts,
It is rotated by the dynamic material roller 12 of belt driving band, material is extracted out out of feeding cylinder 30, at this time since infrared receiver tube 32 receives
To signal, print routine pause, while spray head resets, and third motor 331 passes through movable block 335 by driving screw rod 333 to rotate
It driving gripping block 336 mobile, spray head is clamped, required color is subsequently mounted, color recognition sensor 17 is successively identified,
Then rotating device 4 is driven to rotate by first motor 3, to drive turntable 6 to rotate by shaft 5, until the work recognized
Position turns to feeding station, and then the logical rotation of cross material roller 12 and first is rotated into roll dies wheel 21, second into roll dies wheel 24, carries out
Material, infrared receiver tube 32 does not receive signal at this time, subsequent start-up print routine, and before startup program, gripping block 336 is by spray head
It unclamps；When monochrome printing, other stations put the material of same color, and when fracture, turntable 6 rotates in time, then carry out and
When feeding.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of automatic material-changing device based on FDM mode 3D printing, including cabinet (1), it is characterised in that: the cabinet (1)
The bottom of inner wall is fixedly connected with motor fixing plate (2) vertically, and the side of the motor fixing plate (2) is fixedly connected with the first electricity
The output shaft end of machine (3), the first motor (3) is fixedly connected with rotating device (4), and the side of the rotating device (4) is solid
Surely it is connected with shaft (5), is fixedly connected with turntable (6) at the top of the shaft (5), is fixedly connected at the top of the turntable (6)
Have connecting rod (7), the connecting rod (7) runs through the top of cabinet (1) inner wall far from the one end of turntable (6) and extends to cabinet
(1) top, one end that the connecting rod (7) extends at the top of cabinet (1) are fixedly connected with hanging head (8), the turntable (6)
Top is fixedly connected with gravity sensor (9), and the top vertical of the gravity sensor (9) is fixedly connected with material roller support frame
(10), the center rotating of the material roller support frame (10) is connected with central axis (11), the surface of the central axis (11) and is located at
Material roller (12) is fixedly connected between material roller support frame (10), one end of the central axis (11) is fixedly connected with the first belt pulley
(13), the top of the turntable (6) and close to material roller support frame (10) side be fixedly connected with material roll drive motor (14), institute
The output shaft end for stating material roll drive motor (14) is fixedly connected with the second belt pulley (15), first belt pulley (13) and second
The surface of belt pulley (15) is sequentially connected by the first belt (16), and the material roller support frame (10) is close to the side of material roller (12)
It is fixedly connected with color recognition sensor (17), cabinet (1) the inner wall bottom side is successively fixedly connected with first turn vertically
The center rotating of moving frame (18), the second rotating turret (19), first rotating turret (18) is connected with the first transmission shaft (20), described
The surface of first transmission shaft (20) and it is located in the first rotating turret (18) and is fixedly connected with first into roll dies wheel (21), described first
One end of transmission shaft (20) is fixedly connected with first gear (22), and the center rotating of second rotating turret (19) is connected with second
Transmission shaft (23), the surface of the second driving shaft (23) and be located at the second rotating turret (19) in be fixedly connected with second into roll dies
It takes turns (24), one end of the second driving shaft (23), which is fixedly connected sequentially, second gear (25), third belt pulley (26), described
First gear (22) engages connection with second gear (25), the bottom of cabinet (1) inner wall and close to the second rotating turret (19)
Side be fixedly connected with the second motor (27), the output shaft end of second motor (27) is fixedly connected with the 4th belt pulley
(28), the surface of the third belt pulley (26) and the 4th belt pulley (28) is by the second belt (29) transmission connection, and described the
It is fixedly connected with feeding cylinder (30) at the top of one rotating turret (18), the second rotating turret (19), the inner wall phase of the feeding cylinder (30)
Pair two sides be respectively fixedly connected with infrared emission tube (31), infrared receiver tube (32), cabinet (1) the inner wall bottom
Side is fixedly connected with locking system (33).
2. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
Rotating device (4) includes active driver plate (41), sheave (44), is fixedly connected with convex arc locking at the top of the active driver plate (41)
Disk (42) is fixedly connected with straight pin (43) at the top edge of the active driver plate (41), and the surface of the sheave (44) is opened
Equipped with radial slot (45), the side of the sheave (44) is provided with concave arc locking surface (46), the straight pin (43) and radial slot
(45) it is slidably connected.
3. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 2, it is characterised in that: described
The center of active driver plate (41) is fixedly connected with the output shaft end of first motor (3), the center and shaft (5) of the sheave (44)
Surface be fixedly connected.
4. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
Locking system (33) includes third motor (331) and pedestal (332), and the center rotating of the pedestal (332) is connected with screw rod
(333), one end of the screw rod (333) is fixedly connected by shaft coupling (334) with the output shaft end of third motor (331), institute
The surface for stating screw rod (333) is threaded with movable block (335), and the bottom of the movable block (335) is through cabinet (1) inner wall
Bottom and the outside for extending to cabinet (1), the movable block (335) extend to the external one end of cabinet (1) and are fixedly connected with folder
Tight block (336), the surface of the screw rod (333) is fixedly connected with limited block (337).
5. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 4, it is characterised in that: described
The left side of screw rod (333) is left hand thread, and the right side of the screw rod (333) is right-handed thread, and the movable block (335) is located at silk
The two sides of bar (333), and be symmetrical arranged, the gripping block (336) is V-block, and the gripping block (336) is adapted with spray head.
6. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
Turntable (6) is disk, and the quantity of the connecting rod (7) is four, and is uniformly distributed in the edge of turntable (6).
7. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
Hanging head (8) is connect with the top slide of cabinet (1), offers the sliding slot being adapted to hanging head (8) at the top of the cabinet (1).
8. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
The quantity for expecting roller (12) is five, is uniformly distributed in the top of turntable (6).
9. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
The surface of turntable (6) and be located at material roller (12) opposite position offer horn-like through-hole, offered at the top of the cabinet (1)
The through-hole being adapted to turntable (6).
10. a kind of automatic material-changing device based on FDM mode 3D printing according to claim 1, it is characterised in that: described
The bottom of cabinet (1) inner wall offers the through-hole being adapted to locking system (33), the bottom of cabinet (1) inner wall and be located at into
Barrel (30) opposite position offers discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820575431.4U CN208247471U (en) | 2018-04-20 | 2018-04-20 | A kind of automatic material-changing device based on FDM mode 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820575431.4U CN208247471U (en) | 2018-04-20 | 2018-04-20 | A kind of automatic material-changing device based on FDM mode 3D printing |
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| CN208247471U true CN208247471U (en) | 2018-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422662A (en) * | 2018-04-20 | 2018-08-21 | 温州大学瓯江学院 | A kind of automatic material-changing device based on FDM mode 3D printings |
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2018
- 2018-04-20 CN CN201820575431.4U patent/CN208247471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422662A (en) * | 2018-04-20 | 2018-08-21 | 温州大学瓯江学院 | A kind of automatic material-changing device based on FDM mode 3D printings |
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