CN112757638A - 3D printing platform subassembly and 3D printing device - Google Patents

3D printing platform subassembly and 3D printing device Download PDF

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Publication number
CN112757638A
CN112757638A CN202011612704.6A CN202011612704A CN112757638A CN 112757638 A CN112757638 A CN 112757638A CN 202011612704 A CN202011612704 A CN 202011612704A CN 112757638 A CN112757638 A CN 112757638A
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CN
China
Prior art keywords
plate
platform assembly
driving mechanism
printing platform
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011612704.6A
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Chinese (zh)
Inventor
付东初
欧阳欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Anycubic Technology Co Ltd
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Shenzhen Anycubic Technology Co Ltd
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Publication date
Application filed by Shenzhen Anycubic Technology Co Ltd filed Critical Shenzhen Anycubic Technology Co Ltd
Priority to CN202011612704.6A priority Critical patent/CN112757638A/en
Publication of CN112757638A publication Critical patent/CN112757638A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245—Platforms or substrates
    • 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
    • B29C64/379—Handling of additively manufactured objects, e.g. using robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Robotics (AREA)

Abstract

The invention provides a 3D printing platform assembly and a 3D printing device, wherein the 3D printing platform assembly comprises: the mould comprises a driving mechanism, a demoulding box, a push plate positioned in the demoulding box and a thimble arranged on the push plate and facing the bottom of the demoulding box; the bottom plate of the demolding box is provided with a first through hole corresponding to the ejector pin, and the driving mechanism is fixedly connected with the push plate and can drive the push plate to move up and down in the demolding box so as to push the ejector pin to penetrate out of or retract into the first through hole. Therefore, when the mold is required to be demolded, the driving mechanism can drive the push plate to move downwards in the mold demolding box to push the ejector pin to eject the mold attached to the bottom of the mold demolding box outwards, so that the automatic mold stripping is realized, a user does not need to manually participate in mold stripping, and the problem that the manual mold shoveling is caused and the mold is easily scrapped can be avoided.

Description

3D printing platform subassembly and 3D printing device
Technical Field
The invention relates to the technical field of 3D printing, in particular to a 3D printing platform assembly and a 3D printing device.
Background
In the prior art, after a 3D printer finishes printing, a printed model is pasted on a printing platform, and a current general model peeling method is to forcibly shovel the model from the printing platform by using a shovel blade, but the method has some problems: the adhesive force is larger, the model is easy to be broken by shoveling, the model is scrapped, and the model can be shoveled by using larger force, so that the operation and the use are not convenient.
It can be seen that the problem that the existing 3D printer is not convenient enough in demolding operation and easily causes the model to be scrapped exists.
Disclosure of Invention
The embodiment of the invention aims to provide a 3D printing platform assembly and a 3D printing device, and solves the problems that the demoulding operation of the existing 3D printer is not convenient enough and the model is easy to scrap.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a 3D printing platform assembly, including:
a drive mechanism;
a demolding box;
a push plate located in the demolding box;
the ejector pin is arranged on the push plate and faces the bottom of the demolding box;
the bottom plate of the demolding box is provided with a first through hole corresponding to the ejector pin, and the driving mechanism is fixedly connected with the push plate and can drive the push plate to move up and down in the demolding box so as to push the ejector pin to penetrate out of or retract into the first through hole.
Optionally, the push plate comprises a shaft pulling plate and a push plate bottom plate, the shaft pulling plate is fixedly connected with the push plate bottom plate, the shaft pulling plate is attached to the upper surface of the push plate bottom plate, and the shaft pulling plate is fixedly connected with the driving mechanism.
Optionally, the push pedal still includes the thimble board, the thimble board laminating install in the lower surface of push pedal bottom plate, be equipped with on the thimble board with the second through-hole that the thimble corresponds, the thimble wears to locate the second through-hole.
Optionally, the demolding box comprises a cover plate and a demolding box, wherein the cover plate is fixedly installed on the upper surface of the demolding box and forms a closed box body together with the demolding box;
the cover plate is provided with a first opening matched with the shaft pull plate, the driving mechanism is installed on the outer surface of the cover plate, and the shaft pull plate is aligned to the first opening.
Optionally, the 3D printing platform assembly further includes:
the fixed plate of the driving mechanism is provided with a second opening matched with the shaft pulling plate, the driving mechanism passes through the fixed plate of the driving mechanism and is installed on the outer surface of the cover plate, the fixed plate of the driving mechanism is fixedly installed on the outer surface of the cover plate, the fixed plate of the driving mechanism is installed on the fixed plate of the driving mechanism, and the shaft pulling plate is right opposite to the second opening.
Optionally, the driving mechanism is an air cylinder, and the shaft pulling plate is fixedly connected with a driving shaft of the air cylinder.
Optionally, the 3D printing platform assembly further includes:
the mould release mechanism comprises a platform support frame and a locking handle, wherein the platform support frame is fixedly arranged on the mould release box through the locking handle.
In a second aspect, an embodiment of the present invention provides a 3D printing apparatus, including the 3D printing platform assembly according to the first aspect; the 3D printing apparatus further includes:
the first side surface of the printer base is provided with a die outlet, and a demolding box of the 3D printing platform assembly is matched with the die outlet;
the first longitudinal beam is arranged on the first side surface and is positioned beside the die outlet;
the cross beam is connected with the first longitudinal beam in a sliding mode and can move up and down along the first longitudinal beam;
the 3D printing platform assembly is connected with the cross beam in a sliding mode through a mounting part, and the 3D printing platform assembly can move left and right along the cross beam; when the 3D printing platform assembly is located at the first position of the cross beam, the bottom plate of the demolding box is over against the mold outlet.
Optionally, the 3D printing apparatus further includes:
a second stringer mounted on the first side;
the first end of the cross beam is connected with the first longitudinal beam in a sliding mode, the second end of the cross beam is connected with the second longitudinal beam in a sliding mode, and the cross beam can move up and down along the first longitudinal beam and the second longitudinal beam.
Optionally, when the 3D printing platform assembly is located at the second position of the cross beam, the bottom plate of the demolding box is right opposite to the target position on the first side surface, the second position is different from the first position, and the target position is located beside the mold outlet.
Optionally, the 3D printing apparatus further includes:
the controller is connected with the driving mechanism of the 3D printing platform assembly and used for providing driving signals for the driving mechanism.
The technical scheme has the following advantages or beneficial effects:
the 3D printing platform assembly in the embodiment of the invention comprises: the mould comprises a driving mechanism, a demoulding box, a push plate positioned in the demoulding box and a thimble arranged on the push plate and facing the bottom of the demoulding box; the bottom plate of the demolding box is provided with a first through hole corresponding to the ejector pin, and the driving mechanism is fixedly connected with the push plate and can drive the push plate to move up and down in the demolding box so as to push the ejector pin to penetrate out of or retract into the first through hole. Therefore, when the mold is required to be demolded, the driving mechanism can drive the push plate to move downwards in the mold demolding box to push the ejector pin to eject the mold attached to the bottom of the mold demolding box outwards, so that the automatic mold stripping is realized, a user does not need to manually participate in mold stripping, and the problem that the manual mold shoveling is caused and the mold is easily scrapped can be avoided.
The 3D printing device in the embodiment of the invention comprises the 3D printing platform assembly; the first side surface of the printer base is provided with a die outlet, and a demolding box of the 3D printing platform assembly is matched with the die outlet; the first longitudinal beam is arranged on the first side surface and is positioned beside the die outlet; the cross beam is connected with the first longitudinal beam in a sliding mode and can move up and down along the first longitudinal beam; the 3D printing platform assembly is connected with the cross beam in a sliding mode through a mounting part, and the 3D printing platform assembly can move left and right along the cross beam; when the 3D printing platform assembly is located at the first position of the cross beam, the bottom plate of the demolding box is over against the mold outlet. Like this, when printing the completion, can make the print platform subassembly along first longeron upward movement along with the crossbeam, make the print platform subassembly again along the crossbeam to the opposite side removal, drive push pedal downstream in the drawing of patterns case through actuating mechanism at last, promote the thimble and outwards ejecting the model that adheres to drawing of patterns bottom of the case, realize the automation of model and peel off, and need not the manual participation of user and shell the mould, can avoid the condemned problem of easy model that leads to that manual shovel model brought simultaneously.
Drawings
Fig. 1 is a schematic perspective view of a 3D printing platform assembly according to an embodiment of the present invention;
fig. 2 is an exploded view of a 3D printing platform assembly according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a 3D printing platform assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a 3D printing apparatus when a 3D printing platform assembly is in a first position state according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a 3D printing apparatus when a 3D printing platform assembly is in a second position state according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a 3D printing apparatus when a 3D printing platform assembly is in a third position state according to an embodiment of the present invention;
fig. 7 is a front view of a 3D printing apparatus when a 3D printing platform assembly is in a third position state according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a 3D printing platform assembly 10, including:
a drive mechanism 11;
a demolding case 12;
a push plate 13 located in the demolding case 12;
a thimble 14 mounted on the lower surface of the push plate 13;
the bottom plate of the demolding box 12 is provided with a first through hole 121 corresponding to the ejector pin 14, and the driving mechanism 11 is fixedly connected with the push plate 13 and can drive the push plate 13 to move up and down in the demolding box 12 to push the ejector pin 14 to penetrate out of or retract into the first through hole 121.
In the embodiment of the present invention, fig. 1 is a schematic perspective view of a printing platform assembly 10, fig. 2 is an exploded view of the printing platform assembly 10, fig. 3 is a cross-sectional view along the axis V-V' in fig. 1, as shown in fig. 1, fig. 2 and fig. 3, a 3D printing platform assembly 10 includes a driving mechanism 11, a demolding box 12, a pushing plate 13 located in the demolding box 12, and an ejector 14 installed on the lower surface of the pushing plate 13, wherein the demolding box 12 is a closed box, a model printed by a 3D printer can be attached to the outer surface of the bottom plate of the demolding box 12, the pushing plate 13 can be located in the demolding box 12 and can move up and down in the demolding box 12, the ejector 14 can be installed on the pushing plate 13 and face the bottom of the demolding box 12, and is used for ejecting the printed model under the driving action of the pushing plate 13 during demolding, so as to realize automatic peeling of the model, the driving mechanism 11 is fixedly connected to the, the driving force is provided to drive the push plate 13 to move up and down in the demoulding box 12; the bottom plate of the demolding box 12 is provided with a first through hole 121 corresponding to the ejector pin 14, that is, the through hole position formed on the bottom plate of the demolding box 12 and the mounting position of the ejector pin 14 on the push plate 13 are in a one-to-one correspondence relationship, so that the ejector pin 14 can penetrate through the first through hole 121 when moving up and down in the demolding box 12.
Further, in order to ensure a strong ejection force and make the mold easier to be ejected, the number of the ejector pins 14 may be multiple, and the multiple ejector pins 14 may be uniformly distributed on the lower surface of the push plate 13 to ensure that a uniform ejection force is provided. Correspondingly, the bottom plate of the demolding box 12 may also be provided with a plurality of first through holes 121 corresponding to the plurality of ejector pins 14 one to one, so as to ensure that each ejector pin 14 can pass through the first through hole 121 on the bottom plate of the demolding box 12.
The thimble 14 can be mounted on the push plate 13 in a variety of different mounting manners, for example, the thimble 14 can be screwed on the lower surface of the push plate 13, or the thimble 14 can be knocked into the push plate 13, or two plates can be combined to form the push plate 13, the thimble 14 is inserted into one of the plates and then fixedly attached to the other plate, so as to tightly clamp the head of the thimble 14 between the two plates.
The driving mechanism 11 may be any mechanism capable of providing a driving force, for example, an air cylinder, an oil cylinder, a driving motor, and the like. It should be noted that the driving mechanism 11 may be fixedly installed inside the demolding case 12, for example, on the lower surface of the top plate of the demolding case 12, or may be fixedly installed outside the demolding case 12, for example, on the upper surface of the top plate of the demolding case 12, when the driving mechanism 11 is fixedly installed outside the demolding case 12, an opening may be provided on the top plate of the demolding case 12 to serve as a moving passage for the driving shaft of the driving mechanism 11, and the driving mechanism 11 may be fixedly connected with the push plate 13 through the driving shaft.
Thus, after the mold printing is finished, a downward driving force can be provided by the driving mechanism 11 to drive the push plate 13 to move downward in the demolding box 12, so as to drive the ejector pin 14 to move downward and penetrate out of the first through hole 121, so that the mold adhered to the bottom plate of the demolding box 12 is ejected outwards, and the automatic mold stripping is finished; after the mold stripping is completed, an upward driving force can be provided by the driving mechanism 11 to drive the push plate 13 to move upward in the demolding box 12, so as to drive the ejector pins 14 to move upward and withdraw from the first through holes 121 for subsequent mold printing.
Optionally, the push plate 13 includes a shaft pull plate 131 and a push plate bottom plate 132, the shaft pull plate 131 is fixedly connected to the push plate bottom plate 132, the upper surface of the shaft pull plate 131 is attached to the push plate bottom plate 132, and the shaft pull plate 131 is fixedly connected to the driving mechanism 11.
As shown in fig. 2 and fig. 3, the push plate 13 may include a shaft pulling plate 131 and a push plate bottom plate 132, wherein the shaft pulling plate 131 is fixedly connected to the driving mechanism 11, for example, as shown in fig. 2, the shaft pulling plate 131 may be locked to a driving shaft of the driving mechanism 11 by a screw 21, and the shaft pulling plate 131 is provided with a corresponding screw hole; the axial pull plate 131 is fixedly connected to the push plate bottom plate 132 and is attached to the upper surface of the push plate bottom plate 132, for example, as shown in fig. 2, the axial pull plate 131 can be locked to the push plate bottom plate 132 by screws 22, and corresponding screw holes are formed in both the axial pull plate 131 and the push plate bottom plate 132. The pushing plate base plate 132 may further have an opening adapted to the screw 21, so that the head of the screw 21 can be clamped in the opening after assembly.
It should be noted that, as shown in fig. 2, the shaft pulling plate 131 may be a plate with a smaller size, and the pushing plate bottom plate 132 may be a plate with a larger size, for example, the size of the plate that can be accommodated inside the demolding case 12 can be adapted to ensure that the pushing plate bottom plate 132 can bear more ejector pins and provide a larger thrust force with a larger force-bearing area.
In this way, the driving mechanism 11 can transmit the driving force to the push plate bottom plate 132 through the shaft pulling plate 131, and this coupling structure not only makes it easier to couple the push plate 13 with the driving mechanism 11, but also facilitates the mounting of the driving mechanism 11 outside the demolding case 12.
Optionally, the pusher 13 further includes an ejector plate 133, the ejector plate 133 is attached to the lower surface of the pusher base plate 132, the ejector plate 133 is provided with a second through hole 1331 corresponding to the ejector 14, and the ejector 14 is inserted into the second through hole 1331.
As shown in fig. 2 and 3, the pusher 13 may further include an ejector plate 133, the ejector plate 133 is provided with a second through hole 1331 corresponding to the thimble 14, so that the thimble 14 can pass through the second through hole 1331, in an embodiment, the head size of the thimble 14 may be slightly larger than the needle head position, so that the thimble 14 can be inserted and fixed in the second through hole 1331, and then the pusher base plate 132 can be attached and fixedly connected to the ejector plate 133 inserted with the thimble 14, that is, the ejector plate 133 can be attached to the lower surface of the pusher base plate 132 and fixedly mounted below the pusher base plate 132, for example, as shown in fig. 2, the pusher base plate 132 can be attached to the ejector plate 133 inserted with the thimble 14, and two plates can be locked by screws 23, wherein both the pusher base plate 132 and the ejector plate 133 are provided with corresponding screw holes.
Thus, with this embodiment, it is possible to achieve a more stable mounting of the ejector 14 between the pusher shoe 132 and the ejector plate 133, and to provide a greater pushing force by means of the ejector plate 133.
Optionally, the demolding box 12 includes a cover plate 122 and a demolding box 123, the cover plate 122 is fixedly installed on the upper surface of the demolding box 123, and forms a closed box body with the demolding box 123;
the cover plate 122 is provided with a first opening 1221 adapted to the shaft pull plate 131, the driving mechanism 11 is installed on the outer surface of the cover plate 122, and the shaft pull plate 131 faces the first opening 1221.
As shown in fig. 1, 2 and 3, the knockout box 12 can include a cover plate 122 and a knockout box 123, the knockout box 123 is a box body with an open top, and the cover plate 122 can be mounted above the knockout box 123 to form a closed box body with the knockout box 123. For example, as shown in fig. 1 and fig. 2, the bottom surface of the cover plate 122 can be attached to the upper surface of the demolding box 123 and locked by screws 24, wherein corresponding screw holes are formed around the cover plate 122 and around the upper surface of the demolding box 123.
As shown in fig. 1 and fig. 2, the cover plate 122 is provided with a first opening 1221 adapted to the axial pull plate 131, so that the axial pull plate 131 can pass through the first opening 1221 of the cover plate 122, that is, the size of the first opening 1221 provided in the cover plate 122 is adapted to the size of the axial pull plate 131. The driving mechanism 11 is installed on the outer surface of the cover plate 122 and can be opposite to the first opening 1221 on the cover plate 122, so that the shaft pulling plate 131 fixedly connected with the driving mechanism 11 is opposite to the first opening 1221, and can penetrate into and out of the demolding box 12 through the first opening 1221 under the driving action of the driving mechanism 11.
Thus, by the structure, the demolding box 12 is not required to be provided with a large volume space, and the driving mechanism 11 is convenient to maintain and control.
Optionally, the driving mechanism 11 is an air cylinder, and the shaft pulling plate 131 is fixedly connected with a driving shaft of the air cylinder.
In one embodiment, the driving mechanism 11 may be a cylinder, and the shaft pulling plate 131 is fixedly connected with a driving shaft of the cylinder. In this way, the cylinder shaft can be driven to move downwards by ventilating the cylinder, the shaft pull plate 131, the push plate bottom plate 132, the ejector plate 133 and the ejector pins 14 are driven to move downwards, the ejector pins 14 move downwards to protrude out of the bottom plate of the demolding box 123 and then eject the mold, so that the mold falls off from the bottom of the demolding box 123, and when the lower bottom surface of the ejector plate 133 touches the inner bottom surface of the demolding box 123, the ejection action is stopped, namely, the ventilation of the cylinder is stopped. After demolding, the air cylinder 3 can be ventilated reversely, i.e. pumped, to drive the shaft pull plate 131, the push plate bottom plate 132, the ejector plate 133 and the ejector pins 14 to move upwards and return. And the cylinder is adopted as the driving mechanism, so that the device has the advantages of simple structure, lower cost, convenience in maintenance and the like.
Optionally, the 3D printing platform assembly 10 further includes:
the driving mechanism fixing plate 15 is provided with a second opening 151 matched with the shaft pull plate 131, the driving mechanism 11 is installed on the outer surface of the cover plate 122 through the driving mechanism fixing plate 15, wherein the driving mechanism fixing plate 15 is fixedly installed on the outer surface of the cover plate 122, the driving mechanism 11 is fixedly installed on the driving mechanism fixing plate 15, and the shaft pull plate 131 is opposite to the second opening 151.
As shown in fig. 1, 2 and 3, the 3D printing platform assembly 10 further includes a driving mechanism fixing plate 15 for carrying and fixing the driving mechanism 11, and when the driving mechanism 11 is a cylinder, the driving mechanism fixing plate 15 is a cylinder fixing plate. Specifically, the driving mechanism fixing plate 15 is also provided with a second opening 151 adapted to the shaft pulling plate 131, that is, the size of the second opening 151 is adapted to the size of the shaft pulling plate 131, the driving mechanism fixing plate 15 can be fixedly mounted on the outer surface of the cover plate 122, and the second opening 151 can be kept aligned with the first opening 1221 of the cover plate 122, so that the shaft pulling plate 131 can pass through the second opening 151 on the driving mechanism fixing plate 15 and the first opening 1221 of the cover plate 122, the driving mechanism 11 is fixedly mounted on the driving mechanism fixing plate 15 and faces the second opening 151 on the driving mechanism fixing plate 15, so that the shaft pulling plate 131 fixedly connected with the driving mechanism 11 faces the second opening 151.
For example, as shown in fig. 1 and 2, the driving mechanism 11 may be locked to the driving mechanism fixing plate 15 by a screw 25, the driving mechanism fixing plate 15 may be locked to the cover plate 122 by a screw 26, and after the driving mechanism fixing plate is installed and fixed, the first opening 1221 is aligned with the second opening 151, and the axial pull plate 131 may be inserted into the first opening 1221 and the second opening 151.
In this way, by additionally providing a driving mechanism fixing plate 15 for fixing the driving mechanism 11 on the cover plate 122, it is possible to facilitate mounting and fixing of the driving mechanism 11 and to enhance the supporting force for the driving mechanism 11.
Optionally, the 3D printing platform assembly 10 further includes:
the mould stripping device comprises a platform support frame 16 and a locking handle 17, wherein the platform support frame 16 is fixedly arranged on the mould stripping box 12 through the locking handle 17.
As shown in fig. 1, 2 and 3, the 3D printing platform assembly 10 further includes a platform bracket 16 and a locking handle 17, wherein the platform bracket 16 can be fixedly mounted on the demolding box 12 through the locking handle 17, and the platform bracket 16 can be used as a mounting component of the 3D printing platform assembly 10, so that the 3D printing platform assembly 10 can be conveniently assembled on the 3D printing device through the platform bracket 16.
The 3D printing platform assembly in the embodiment of the invention comprises: the mould comprises a driving mechanism, a demoulding box, a push plate positioned in the demoulding box and a thimble arranged on the push plate and facing the bottom of the demoulding box; the bottom plate of the demolding box is provided with a first through hole corresponding to the ejector pin, and the driving mechanism is fixedly connected with the push plate and can drive the push plate to move up and down in the demolding box so as to push the ejector pin to penetrate out of or retract into the first through hole. Therefore, when the mold is required to be demolded, the driving mechanism can drive the push plate to move downwards in the mold demolding box to push the ejector pin to eject the mold attached to the bottom of the mold demolding box outwards, so that the automatic mold stripping is realized, a user does not need to manually participate in mold stripping, and the problem that the manual mold shoveling is caused and the mold is easily scrapped can be avoided.
As shown in fig. 4, 5, 6, and 7, an embodiment of the present invention provides a 3D printing apparatus, including the 3D printing platform assembly 10 described in the foregoing embodiment, where the 3D printing apparatus further includes:
a first side surface 411 of the printer base 41 is provided with a die outlet 412, and the demolding box 12 of the 3D printing platform assembly 10 is matched with the die outlet 412;
the first longitudinal beam 42 is installed on the first side surface 411, and the first longitudinal beam 42 is located beside the mold outlet 412;
the cross beam 43 is connected with the first longitudinal beam 42 in a sliding mode, and the cross beam 43 can move up and down along the first longitudinal beam 42;
the 3D printing platform assembly 10 is connected with the cross beam 43 in a sliding mode through the mounting part, and the 3D printing platform assembly 10 can move left and right along the cross beam 43; when the 3D printing platform assembly 10 is in the first position of the cross beam 43, the bottom plate of the knockout box 12 faces the die outlet 412.
In the embodiment of the present invention, fig. 4, fig. 5, and fig. 6 are schematic structural diagrams of a 3D printing apparatus in three different states, respectively, in fig. 4, the 3D printing apparatus is in a printing state, the 3D printing platform assembly 10 is located at the position of the mold exit 412, in fig. 5, the 3D printing apparatus is in a printing completion state, the 3D printing platform assembly 10 is lifted upward to prepare for demolding, and in fig. 6, the 3D printing platform assembly 10 is moved to a mold stripping position to start demolding. Fig. 7 is a front view of the 3D printing apparatus in the position state shown in fig. 6.
As shown in fig. 4, 5 and 6, the 3D printing apparatus includes a 3D printing platform assembly 10, a printer base 41, a first longitudinal beam 42 and a cross beam 43, wherein a first side surface 411, i.e., a table top, of the printer base 41 is provided with a mold outlet 412, and the mold outlet 412 is adapted to the mold outlet 12 of the 3D printing platform assembly 10; the first longitudinal beam 42 is installed on the first side 411 of the printer base 41 and beside the die outlet 412, and is used for providing an up-and-down movement path for the 3D printing platform assembly 10; the cross beam 43 is slidably connected with the first longitudinal beam 42, for example, a slide rail is arranged on the first longitudinal beam 42, and a sliding component matched with the slide rail is arranged on the cross beam 43, so that the cross beam 43 can move up and down along the first longitudinal beam 42; the 3D printing platform assembly 10 may be slidably connected to the cross beam 43 through a mounting part, for example, the 3D printing platform assembly 10 is sleeved on a slide of the cross beam 43 through a mounting part, so that the 3D printing platform assembly 10 can move left and right along the cross beam 43.
And there is a specific position on the cross beam 43 so that the 3D printing platform assembly 10 can be directly opposite to the die outlet 412 or just placed in the die outlet 412 when the 3D printing platform assembly 10 is moved to this position. The specific position may be an end, a middle or other position of the cross beam 43, particularly in relation to the connecting position of the cross beam 43 and the first longitudinal beam 42.
When only one longitudinal beam, i.e., the first longitudinal beam 42, is provided on the printer base 41, the strength of the first longitudinal beam 42 for supporting the cross beam 43 needs to be ensured.
Therefore, after the model is printed, the beam 43 can be controlled to move upwards along the first longitudinal beam 42 to drive the 3D printing platform assembly 10 to lift upwards, when the model reaches a certain height, the beam 43 can be stopped from lifting, the 3D printing platform assembly 10 is controlled to move horizontally along the beam 43 until the target position is reached, for example, the position of a blank table top of the die outlet 412 is not aligned, or a model loading part such as the position right above a cleaning barrel is arranged, the 3D printing platform assembly 10 is controlled to eject and drop the model at the position, and the demolding process after the model is printed is completed.
Optionally, when the 3D printing platform assembly 10 is located at the second position of the cross beam 43, the bottom plate of the demolding case 12 faces a target position on the first side 411, the second position is different from the first position, and the target position is located beside the mold outlet 412.
As shown in fig. 4, 5 and 6, a cleaning barrel 413 may be further disposed on the first side 411 of the printer base 41 for cleaning the peeled model, and the height of the first longitudinal beam 42 may be adapted to the height of the cleaning barrel 413, for example, slightly higher than the cleaning barrel 413, so that when the 3D printing platform assembly 10 is moved to a position above the cleaning barrel 413, the distance between the 3D printing platform assembly 10 and the opening of the cleaning barrel 413 is moderate.
In an embodiment, another specific position exists on the cross beam 43, so that when the 3D printing platform assembly 10 moves to the position, the 3D printing platform assembly 10 can be directly opposite to a target position on the first side surface 411, that is, the target position is a position on the first side surface 411 where the cleaning bucket 413 is placed, so that when the mold is demolded at the position, the detached mold can just fall into the cleaning bucket 413, and the mold is cleaned by the cleaning bucket 413, thereby realizing an integrated function of automatic mold stripping and cleaning.
Optionally, the 3D printing apparatus further includes:
a second longitudinal beam 44, the second longitudinal beam 44 being mounted on the first side 411;
the first end of the cross beam 43 is slidably connected with the first longitudinal beam 42, the second end of the cross beam 43 is slidably connected with the second longitudinal beam 44, and the cross beam 43 can move up and down along the first longitudinal beam 42 and the second longitudinal beam 44.
As shown in fig. 4, 5 and 6, the 3D printing apparatus further includes a second longitudinal beam 44 installed on the first side 411, the second longitudinal beam 44 may be located beside the target position, i.e., beside the cleaning barrel 413, two ends of the cross beam 43 may be slidably connected with the first longitudinal beam 42 and the second longitudinal beam 44, respectively, and the cross beam 43 and the second longitudinal beam 44 may be slidably connected in the same manner as the first longitudinal beam 42, so that the cross beam 43 may move up and down along the first longitudinal beam 42 and the second longitudinal beam 44.
When the 3D printing deck assembly 10 is located near the first end of the cross beam 43, i.e. the first longitudinal beam 42, the 3D printing deck assembly 10 faces the die exit 412, and when the 3D printing deck assembly 10 is located near the second end of the cross beam 43, i.e. the second longitudinal beam 44, the 3D printing deck assembly 10 faces the cleaning bucket 413.
Thus, by setting two longitudinal beams on the first side 411 of the printer base 41 beside the die opening 412 and the cleaning barrel 413, respectively, and by slidably connecting the cross beam 43 to the two longitudinal beams, respectively, the cross beam can be ensured to be more stable.
Optionally, the 3D printing apparatus further includes:
a controller connected to the driving mechanism 11 of the 3D printing platform assembly 10 for providing a driving signal to the driving mechanism 11.
In one embodiment, the 3D printing apparatus may further include a controller connected to the driving mechanism 11 of the 3D printing platform assembly 10, and configured to provide a driving signal to the driving mechanism 11 to control the driving mechanism 11 to provide a downward or upward driving force, and in particular, may provide a corresponding driving signal when demolding is required and after demolding is completed to control the 3D printing platform assembly 10 to complete an automated demolding process.
Taking the driving mechanism 11 as an example, after the printing of the model is completed and the 3D printing platform assembly 10 moves to the position above the cleaning barrel as shown in fig. 6 and 7, the controller sends a control signal, the air cylinder starts ventilation to drive the air cylinder to move axially downward, so as to drive the axial pull plate 131, the push plate bottom plate 132, the ejector plate 133 and the ejector 14 to move downward, the ejector 14 moves downward to eject the model after protruding out of the bottom plate of the demolding box 123, so that the model falls off from the bottom 123 of the demolding box and falls into the cleaning barrel 413 for cleaning, and when the lower bottom surface of the ejector plate 133 touches the inner bottom surface of the demolding box 123, the ejection action is stopped, that is, the ventilation to the air cylinder is stopped. After demolding, the air cylinder 3 can be ventilated reversely, i.e. pumped, to drive the shaft pull plate 131, the push plate bottom plate 132, the ejector plate 133 and the ejector pins 14 to move upwards and return. After the 3D printing platform assembly 10 is reset, the position state shown in fig. 4 is returned to.
Thus, by providing a drive signal to the drive mechanism 11 via the controller, a more automated de-molding process may be achieved.
The following describes the operation of the 3D printing apparatus with reference to fig. 4 to 7:
as shown in fig. 4, when the 3D printing apparatus is in a printing state, the 3D printing platform assembly 10 is located at the mold outlet 412, waiting for the mold to be printed, and at this time, the 3D printing platform assembly 10 is located at the first end of the cross beam 43, that is, the end close to the first longitudinal beam 42.
When the 3D printing apparatus is in a model printing completion state, as shown in fig. 5, the 3D printing platform assembly 10 is lifted upwards by the driving action of the cross beam 43, and reaches the top ends of the first longitudinal beam 42 and the second longitudinal beam 44.
As shown in fig. 6, the 3D printing platform assembly 10 moves along the cross beam 43 in a direction approaching the cleaning bucket 413 until reaching a position right above the cleaning bucket 413, and the 3D printing platform assembly 10 is located at the second end of the cross beam 43, that is, the end near the second longitudinal beam 44.
As shown in fig. 7, the 3D printing platform assembly 10 starts to push the ejector pins 14 to protrude from the bottom of the demolding case 12 at the current position, and pushes out the mold adhered to the bottom of the demolding case 12, so that the mold falls into the cleaning bucket 413 for cleaning.
The 3D printing device in the embodiment of the invention comprises the 3D printing platform assembly; the first side surface of the printer base is provided with a die outlet, and a demolding box of the 3D printing platform assembly is matched with the die outlet; the first longitudinal beam is arranged on the first side surface and is positioned beside the die outlet; the cross beam is connected with the first longitudinal beam in a sliding mode and can move up and down along the first longitudinal beam; the 3D printing platform assembly is connected with the cross beam in a sliding mode through a mounting part, and the 3D printing platform assembly can move left and right along the cross beam; when the 3D printing platform assembly is located at the first position of the cross beam, the bottom plate of the demolding box is over against the mold outlet. Like this, when printing the completion, can make the print platform subassembly along first longeron upward movement along with the crossbeam, make the print platform subassembly again along the crossbeam to the opposite side removal, drive push pedal downstream in the drawing of patterns case through actuating mechanism at last, promote the thimble and outwards ejecting the model that adheres to drawing of patterns bottom of the case, realize the automation of model and peel off, and need not the manual participation of user and shell the mould, can avoid the condemned problem of easy model that leads to that manual shovel model brought simultaneously.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A3D printing platform assembly, comprising:
a drive mechanism;
a demolding box;
a push plate located in the demolding box;
the ejector pin is arranged on the push plate and faces the bottom of the demolding box;
the bottom plate of the demolding box is provided with a first through hole corresponding to the ejector pin, and the driving mechanism is fixedly connected with the push plate and can drive the push plate to move up and down in the demolding box so as to push the ejector pin to penetrate out of or retract into the first through hole.
2. The 3D printing platform assembly according to claim 1, wherein the push plate comprises a shaft pull plate and a push plate bottom plate, the shaft pull plate is fixedly connected with the push plate bottom plate, the shaft pull plate is attached to the upper surface of the push plate bottom plate, and the shaft pull plate is fixedly connected with the driving mechanism.
3. The 3D printing platform assembly according to claim 2, wherein the push plate further comprises an ejector plate, the ejector plate is attached to the lower surface of the push plate bottom plate, a second through hole corresponding to the ejector pin is formed in the ejector plate, and the ejector pin penetrates through the second through hole.
4. The 3D printing platform assembly according to claim 2, wherein the demolding box comprises a cover plate and a demolding box, wherein the cover plate is fixedly installed on the upper surface of the demolding box and forms a closed box body with the demolding box;
the cover plate is provided with a first opening matched with the shaft pull plate, the driving mechanism is installed on the outer surface of the cover plate, and the shaft pull plate is aligned to the first opening.
5. The 3D printing platform assembly according to claim 4, wherein the 3D printing platform assembly further comprises:
the fixed plate of the driving mechanism is provided with a second opening matched with the shaft pulling plate, the driving mechanism passes through the fixed plate of the driving mechanism and is installed on the outer surface of the cover plate, the fixed plate of the driving mechanism is fixedly installed on the outer surface of the cover plate, the fixed plate of the driving mechanism is installed on the fixed plate of the driving mechanism, and the shaft pulling plate is right opposite to the second opening.
6. The 3D printing platform assembly according to claim 2, wherein the driving mechanism is a cylinder, and the shaft pulling plate is fixedly connected with a driving shaft of the cylinder.
7. The 3D printing platform assembly according to claim 1, wherein the 3D printing platform assembly further comprises:
the mould release mechanism comprises a platform support frame and a locking handle, wherein the platform support frame is fixedly arranged on the mould release box through the locking handle.
8. A 3D printing apparatus comprising the 3D printing platform assembly of any one of claims 1 to 7; the 3D printing apparatus further includes:
the first side surface of the printer base is provided with a die outlet, and a demolding box of the 3D printing platform assembly is matched with the die outlet;
the first longitudinal beam is arranged on the first side surface and is positioned beside the die outlet;
the cross beam is connected with the first longitudinal beam in a sliding mode and can move up and down along the first longitudinal beam;
the 3D printing platform assembly is connected with the cross beam in a sliding mode through a mounting part, and the 3D printing platform assembly can move left and right along the cross beam; when the 3D printing platform assembly is located at the first position of the cross beam, the bottom plate of the demolding box is over against the mold outlet.
9. The 3D printing device according to claim 8, wherein the 3D printing device further comprises:
a second stringer mounted on the first side;
the first end of the cross beam is connected with the first longitudinal beam in a sliding mode, the second end of the cross beam is connected with the second longitudinal beam in a sliding mode, and the cross beam can move up and down along the first longitudinal beam and the second longitudinal beam.
10. The 3D printing device of claim 8, wherein a floor of the stripper box faces a target location on the first side when the 3D printing platform assembly is at a second position of the cross beam, the second position being different from the first position, the target location being located to a side of the die exit.
CN202011612704.6A 2020-12-30 2020-12-30 3D printing platform subassembly and 3D printing device Pending CN112757638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011612704.6A CN112757638A (en) 2020-12-30 2020-12-30 3D printing platform subassembly and 3D printing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011612704.6A CN112757638A (en) 2020-12-30 2020-12-30 3D printing platform subassembly and 3D printing device

Publications (1)

Publication Number Publication Date
CN112757638A true CN112757638A (en) 2021-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113733553A (en) * 2021-09-09 2021-12-03 南京铖联激光科技有限公司 Full-automatic continuous DLP3D printing system and method
CN114474735A (en) * 2021-07-29 2022-05-13 深圳市创想三帝科技有限公司 Demoulding device and 3D printing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474735A (en) * 2021-07-29 2022-05-13 深圳市创想三帝科技有限公司 Demoulding device and 3D printing apparatus
CN113733553A (en) * 2021-09-09 2021-12-03 南京铖联激光科技有限公司 Full-automatic continuous DLP3D printing system and method

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