CN116238152A - Scalable multistage cylinder liner of 3D printer - Google Patents

Scalable multistage cylinder liner of 3D printer Download PDF

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Publication number
CN116238152A
CN116238152A CN202310431787.6A CN202310431787A CN116238152A CN 116238152 A CN116238152 A CN 116238152A CN 202310431787 A CN202310431787 A CN 202310431787A CN 116238152 A CN116238152 A CN 116238152A
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CN
China
Prior art keywords
cylinder body
cylinder
fixed
assembly
movable
Prior art date
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Pending
Application number
CN202310431787.6A
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Chinese (zh)
Inventor
赵建岗
夏贞波
邓春滔
杨金昊
何贵平
刘钊
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Hangzhou Dedi Intelligent Technology Co ltd
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Hangzhou Dedi Intelligent Technology Co ltd
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Publication date
Application filed by Hangzhou Dedi Intelligent Technology Co ltd filed Critical Hangzhou Dedi Intelligent Technology Co ltd
Priority to CN202310431787.6A priority Critical patent/CN116238152A/en
Publication of CN116238152A publication Critical patent/CN116238152A/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
    • B29C64/227—Driving means
    • B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
    • 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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • 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
    • B29C64/264—Arrangements for irradiation
    • B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)

Abstract

The invention discloses a telescopic multi-stage cylinder sleeve of a 3D printer, which comprises a cylinder sleeve assembly provided with a transfer part, wherein the transfer part extends out along the side surface or the bottom of the cylinder sleeve assembly and forms a transfer supporting structure; the cylinder sleeve assembly comprises a fixed cylinder body and a movable cylinder body which are connected in a sliding mode along the vertical direction, the fixed cylinder body is arranged below the movable cylinder body, and a forming substrate of the 3D model is arranged on the top surface of the fixed cylinder body. According to the invention, the total components of the cylinder sleeve are set to be the fixed cylinder body and the movable cylinder body, the fixed cylinder body is arranged below, the movable cylinder body can move along the fixed cylinder body in the vertical direction, and after 3D printing is finished, the movable cylinder body moves downwards along the fixed cylinder body to expose the 3D model; the transfer part is arranged on the cylinder sleeve assembly, and the 3D model and the cylinder sleeve assembly are conveniently transferred to the position where the model is conveniently taken out together by utilizing the action of a transfer tool such as a forklift and the transfer part, meanwhile, the cylinder sleeve assembly can yield a printing position, the subsequent operation of a printer is convenient, and the new cylinder sleeve assembly can be replaced for printing, so that the operation time is saved.

Description

Scalable multistage cylinder liner of 3D printer
Technical Field
The invention relates to the field of 3D printing, in particular to a telescopic multi-stage cylinder sleeve of a 3D printer.
Background
3D printing is used as a method for constructing objects by layer-by-layer printing based on digital model files, and includes SLA, DLP, LCD/LED and other light curing methods, such as layer-by-layer selective curing with UV light curing resin to form a 3D model. For example DLP (Digital Light Processing) is a surface formed in a slice cross-sectional pattern according to a 3D model, an imaging light source such as an ultraviolet light projection is used to effect curing of a single layer onto a photosensitive resin material, and thus curing layer by layer to form a 3D model. SLA (Stereo LithographyApparatus) the slice section pattern of the 3D model is formed by laser beams such as ultraviolet light, focusing on the photosensitive resin material through a lens group such as a lens or a reflector, and curing point by point from line to surface to form single-layer curing, so that the 3D model is formed by layer curing.
When the existing printing is performed, the position of the laser is fixed, the printing substrate in the cylinder body gradually moves downwards to thicken the printed model, and the substrate and the 3D model are taken out together after the printing is finished; however, this method is only suitable for printing small 3D models due to the problem of too small size of the molding chamber and limited molding height, and when printing 3D models of high or large size, it is difficult to take out the molded 3D models and the substrate together due to the height or weight, thereby reducing the printing efficiency.
Disclosure of Invention
The invention aims at: aiming at the problem that printing a large-scale 3D model in the prior art causes difficult extraction, the telescopic multi-stage cylinder sleeve of a 3D printer is provided, which is convenient for extracting and transferring the 3D model.
In order to achieve the above object, the present invention provides the following technical solutions:
a scalable multistage cylinder liner of 3D printer, including the cylinder liner assembly with transfer part, transfer part stretches out and forms and shifts the supporting structure along side or bottom of the cylinder liner assembly; the cylinder sleeve assembly comprises a fixed cylinder body and a movable cylinder body which are connected in a sliding mode along the vertical direction, the fixed cylinder body is arranged below the movable cylinder body, and a forming substrate of the 3D model is arranged on the top surface of the fixed cylinder body.
According to the invention, the cylinder sleeve total components are set to be the fixed cylinder body and the movable cylinder body, the fixed cylinder body is arranged below, the movable cylinder body can move along the fixed cylinder body in the vertical direction, and after 3D printing is finished, the movable cylinder body can move downwards along the fixed cylinder body to expose the 3D model conveniently; the transfer part is arranged on the cylinder sleeve assembly, and the position of the whole cylinder sleeve assembly can be moved by utilizing the action of a transfer tool such as a forklift and the transfer part, so that the 3D model can be conveniently transferred to a position where the model is conveniently taken out (for carrying out operations such as powder cleaning and model taking), the protection effect on the 3D model is good, meanwhile, the cylinder sleeve assembly can leave a printing position, the subsequent operation of a printer is convenient, in the operation, another cylinder sleeve assembly can be directly used for replacement, the printing is continued, and the time for replacing a substrate is saved; in addition, the fixed cylinder body and the movable cylinder body form a multi-stage cylinder sleeve structure, wherein the number of the movable cylinder bodies can be adjusted according to the requirement and is at least one; the fixed cylinder body and the movable cylinder body which are connected in a sliding way are beneficial to reducing the height of the whole machine and improving the compactness of the whole machine equipment.
Further, the fixed cylinder body is connected with the movable cylinder body through the compressible elastic piece, the lowest point of the movable cylinder body corresponds to the compression state of the elastic piece, and the highest point of the movable cylinder body corresponds to the relaxation state of the elastic piece. When printing is started, the movable cylinder is positioned at the lowest point, and along with the printing, the movable cylinder moves along the vertical direction.
Further, the elastic pieces are nitrogen springs and are symmetrically distributed on the periphery of the cylinder sleeve assembly. The elastic pieces are symmetrically distributed, so that the stress is uniform, and the overall stability of the cylinder sleeve assembly is good.
Further, the cylinder sleeve assembly is rectangular, reinforcing pieces are fixed on the outer walls of the periphery of the movable cylinder body, and the reinforcing pieces positioned above are arranged in a rectangular ring and are connected with the top ends of the elastic pieces; the elastic elements are four and are distributed near four corners of the cylinder sleeve assembly. The reinforcing piece positioned at the top of the movable cylinder body plays a role in reinforcing structural strength, and is used as a connecting position of the elastic piece and the movable cylinder body, so that the movable cylinder body can move along the vertical direction under the pushing of the elastic piece.
Further, the movable cylinder body is sleeved outside the fixed cylinder body, and a sealing assembly is arranged between the movable cylinder body and the fixed cylinder body. And a sealing assembly is arranged between the movable cylinder body and the fixed cylinder body, so that the movable cylinder body and the fixed cylinder body are ensured to be kept in a sealing state when relatively moved, and the stable 3D printing is ensured.
Further, a concave sealing groove is formed in the periphery of the top of the fixed cylinder body, the sealing component is arranged in the sealing groove and protrudes out of the outer surface of the fixed cylinder body, and the sealing component is abutted with the inner wall of the movable cylinder body. The sealing groove is arranged on the periphery of the fixed cylinder body, the sealing component is arranged in the sealing groove, and the sealing component is abutted with the movable cylinder body, namely, the sealing component is positioned between the fixed cylinder body and the movable cylinder body, so that a gap between the fixed cylinder body and the movable cylinder body is filled, and the tightness of the fixed cylinder body and the movable cylinder body is ensured.
Further, the sealing assembly comprises a felt and a sealing ring, the felt is positioned above the sealing ring and is provided with two layers, a pressing plate is arranged between the felt and the sealing ring, and the pressing plate is used for pressing the sealing ring; the felt and the sealing ring are both abutted against the inner wall of the movable cylinder body. Double-layer felt has better sealing effect; the pressing plate compresses the sealing ring, so that the sealing effect of the sealing ring is ensured; the felt and the sealing ring are used simultaneously and are all abutted against the inner wall of the movable cylinder body, so that the sealing effect is greatly improved, and the tightness between the fixed cylinder body and the movable cylinder body is ensured.
Further, a guide assembly is fixed on the circumference of the lower part of the movable cylinder body, and the guide assembly is provided with a guide block and is in sliding abutting connection with the fixed cylinder body. The guide assembly is provided with a guide block and is in sliding butt joint with the fixed cylinder body through the guide block so as to ensure the sliding stability of the movable cylinder body.
Further, the guide assembly comprises a mounting block fixed on the outer wall of the movable cylinder body and a limiting block provided with a hook-shaped structure, and the guide block is in a step shape; limiting blocks are arranged on two opposite sides of the guide block, and the step structures of the guide block are pressed on the installation block by the hook-shaped structures of the two limiting blocks. The mounting block improves the stability of the mounting position of the guide block, the hook-shaped structure of the limiting block abuts against the step of the guide block to fix the position of the guide block, and the stability of the guide block is improved.
Further, the transfer part is arranged at the bottom of the fixed cylinder body and forms a base of the cylinder sleeve assembly, and the transfer part is of a plurality of block structures which are arranged at intervals so as to form strip gaps which can be penetrated by a plurality of forklifts in XY two directions at the bottom of the cylinder sleeve assembly. The transfer part forms a strip-shaped gap at the bottom of the cylinder sleeve assembly, so that a fork truck and other transfer tools can conveniently extend into the gap, and the cylinder sleeve assembly can be conveniently transferred; the strip-shaped gaps are arranged in the XY directions, so that the convenience of transferring the cylinder sleeve assembly is improved, namely, transferring tools such as forklifts and the like can extend into the gaps in the four directions of the rectangular cylinder sleeve assembly.
Compared with the prior art, the invention has the beneficial effects that: the cylinder sleeve total components are set to be the fixed cylinder body and the movable cylinder body, the fixed cylinder body is arranged below, the movable cylinder body can move along the fixed cylinder body in the vertical direction, and after 3D printing is finished, the movable cylinder body can move downwards along the fixed cylinder body to expose the 3D model; the transfer part is arranged on the cylinder sleeve assembly, and the position of the whole cylinder sleeve assembly can be moved by utilizing the action of a transfer tool such as a forklift and the transfer part, so that the 3D model can be conveniently transferred to a position where the model is conveniently taken out (for carrying out operations such as powder cleaning and model taking), the protection effect on the 3D model is good (the same as the protection effect on the 3D model), meanwhile, the cylinder sleeve assembly can leave a printing position, the subsequent operation of a printer is convenient, and in the operation, another cylinder sleeve assembly can be directly used for replacement, the printing is continued, and the time for replacing a substrate is saved; in addition, the fixed cylinder body and the movable cylinder body form a multi-stage cylinder sleeve structure, wherein the number of the movable cylinder bodies can be adjusted according to the requirement and is at least one; the fixed cylinder body and the movable cylinder body which are connected in a sliding way are beneficial to reducing the height of the whole machine and improving the compactness of the whole machine equipment.
Description of the drawings:
the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a block diagram of the lowest point of a moving cylinder of a telescopic multi-stage cylinder liner of a 3D printer according to the present invention.
Fig. 2 shows a block diagram of the highest point of the moving cylinder of the telescopic multi-stage cylinder liner of the 3D printer of the present invention.
Figure 3 shows a plan cross-section of the highest point of the mobile cylinder of the present invention.
Fig. 4 shows an enlarged view of the structure at a in fig. 3.
Wherein the above figures include the following reference numerals:
10, fixing a cylinder body; 11 sealing grooves; 12 transfer part;
20 moving the cylinder; 21 a stiffener;
30 elastic members;
40 a seal assembly; 41 felt; 42 sealing rings; 43 press plate;
50 a guide assembly; 51 guide blocks; 52 mounting blocks; and 53 limiting blocks.
Detailed Description
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
Referring to fig. 1 and 2, a telescopic multi-stage cylinder liner of a 3D printer includes a cylinder liner assembly provided with a transfer portion 13, the transfer portion 13 extending along a side or bottom of the cylinder liner assembly and forming a transfer support structure; the cylinder sleeve assembly comprises a fixed cylinder body 10 and a movable cylinder body 20 which are connected in a sliding mode in the vertical direction, the fixed cylinder body 10 is arranged below the movable cylinder body 20, and a forming substrate of a 3D model is arranged on the top surface of the fixed cylinder body 10.
According to the invention adopting the technical scheme, the cylinder sleeve total components are the fixed cylinder body 10 and the movable cylinder body 20, the fixed cylinder body 10 is arranged below, the movable cylinder body 20 can move along the fixed cylinder body 10 in the vertical direction, and after 3D printing is finished, the movable cylinder body 20 can move downwards along the fixed cylinder body 10 to expose the 3D model conveniently; the transfer part 13 is arranged on the cylinder sleeve assembly, and the position of the whole cylinder sleeve assembly can be moved by utilizing the action of a transfer tool such as a forklift and the like and the transfer part 13, so that the 3D model can be conveniently transferred to a position where the model is conveniently taken out (for performing operations such as powder cleaning and model taking), the protection effect on the 3D model is good, meanwhile, the cylinder sleeve assembly can leave a printing position, the subsequent operation of a printer is convenient, in the operation, another cylinder sleeve assembly can be directly used for replacement, the printing is continued, and the time for replacing a substrate is saved; in addition, the fixed cylinder 10 and the moving cylinder 20 form a multi-stage cylinder liner structure in which the number of the moving cylinders 20 is adjustable as required and is at least one; the fixed cylinder body 10 and the movable cylinder body 20 which are connected in a sliding way are beneficial to reducing the height of the whole machine and improving the compactness of the whole machine equipment.
Further, the fixed cylinder 10 and the movable cylinder 20 are connected by a compressible elastic member 30, the lowest point of the movable cylinder 20 corresponds to the compressed state of the elastic member 30, and the highest point of the movable cylinder 20 corresponds to the relaxed state of the elastic member 30. At the start of printing, the moving cylinder 20 is at the lowest point, and as printing proceeds, the moving cylinder 20 moves in the vertical direction.
Further, the elastic members 30 are nitrogen springs, and the elastic members 30 are arranged on the periphery of the cylinder sleeve assembly in a separated and symmetrical mode. The elastic pieces 30 are symmetrically distributed, so that the stress is uniform, and the overall stability of the cylinder sleeve assembly is good.
Further, the cylinder sleeve assembly is rectangular, the reinforcing members 21 are fixed on the outer walls around the movable cylinder body 20, and the reinforcing members 21 positioned above are arranged in a rectangular ring and are connected with the top ends of the elastic members 30; the elastic members 30 are four and are distributed near the four corners of the cylinder liner assembly. The reinforcing member 21 located at the top of the moving cylinder 20 serves to reinforce structural strength and, as a connection position of the elastic member 30 and the moving cylinder 20, ensures that the moving cylinder 20 can move in a vertical direction under the pushing of the elastic member 30.
As shown in fig. 3 and 4, further, the movable cylinder 20 is sleeved outside the fixed cylinder 10, and a sealing assembly 40 is arranged between the movable cylinder 20 and the fixed cylinder 10. A sealing assembly 40 is arranged between the movable cylinder 20 and the fixed cylinder 10, so that the sealing state is maintained when the movable cylinder 20 and the fixed cylinder 10 relatively move, and the stable 3D printing is ensured.
Further, a concave sealing groove 11 is provided near the outer periphery of the top of the fixed cylinder 10, a sealing assembly 40 is provided in the sealing groove 11 and protrudes out of the outer surface of the fixed cylinder 10, and the sealing assembly 40 abuts against the inner wall of the movable cylinder 20. The sealing groove 11 is arranged on the periphery of the fixed cylinder body 10, the sealing assembly 40 is arranged in the sealing groove 11, and the sealing assembly 40 is abutted with the movable cylinder body 20, namely, the sealing assembly 40 is positioned between the fixed cylinder body 10 and the movable cylinder body 20, so that a gap between the fixed cylinder body 10 and the movable cylinder body 20 is filled, and the tightness of the fixed cylinder body and the movable cylinder body is ensured.
As shown in fig. 3 and 4, further, the sealing assembly 40 includes a felt 41 and a sealing ring 42, the felt 41 is located above the sealing ring 42 and is provided with two layers, a pressing plate 43 is arranged between the felt 41 and the sealing ring 42, and the pressing plate 43 is used for pressing the sealing ring 42; the felt 41 and the seal ring 42 are both in contact with the inner wall of the movable cylinder 20. The double-layer felt 41 has better sealing effect; the pressing plate 43 presses the sealing ring 42, so that the sealing effect of the sealing ring 42 is ensured; the felt 41 and the sealing ring 42 are used simultaneously and are abutted against the inner wall of the movable cylinder body 20, so that the sealing effect is greatly improved, and the tightness between the fixed cylinder body 10 and the movable cylinder body 20 is ensured.
Further, a guide assembly 50 is fixed to the circumference of the lower portion of the moving cylinder 20, and the guide assembly 50 is provided with a guide block 51 and slidably abuts against the fixed cylinder 10. The guide assembly 50 is provided with a guide block 51 and is in sliding abutment with the fixed cylinder 10 through the guide block 51 so as to ensure the sliding stability of the movable cylinder 20.
Further, the guide assembly 50 includes a mounting block 52 fixed on the outer wall of the moving cylinder 20 and a stopper 53 having a hook structure, and the guide block 51 is stepped; limiting blocks 53 are arranged on two opposite sides of the guide block 51, and the step structure of the guide block 51 is pressed on the mounting block 52 by the hook-shaped structures of the two limiting blocks 53. The mounting block 52 improves the stability of the mounting position of the guide block 51, and the hook-shaped structure of the limiting block 53 abuts against the step of the guide block 51 to fix the position of the guide block 51, so that the stability of the guide block 51 is improved.
Further, the transfer portion 13 is disposed at the bottom of the fixed cylinder 10 and forms a base of the cylinder liner assembly, and the transfer portion 13 has a plurality of block structures arranged at intervals, so as to form strip gaps in XY two directions at the bottom of the cylinder liner assembly, into which a plurality of forklift trucks can extend. The transfer part 13 forms a strip-shaped gap at the bottom of the cylinder sleeve assembly, so that a fork truck and other transfer tools can conveniently extend into the gap, and the cylinder sleeve assembly can be conveniently transferred; the strip-shaped gaps are arranged in the XY directions, so that the convenience of transferring the cylinder sleeve assembly is improved, namely, transferring tools such as forklifts and the like can extend into the gaps in the four directions of the rectangular cylinder sleeve assembly.
When the fixed cylinder 10 and the moving cylinder 20 are rectangular cylinders, the pressing plate 43 may be formed in a long shape, and one pressing plate 43 is provided in each direction; the pressing plate 43 may be formed in a small block shape, and a plurality of pressing plates may be provided for each direction as needed. The elastic piece 30 is arranged on the rectangular long side of the cylinder sleeve assembly, and two elastic pieces 30 are arranged on two long sides. The outer dimension of the pressing plate 43 in the horizontal direction is smaller than that of the felt 41 and the sealing ring 42, and the pressing plate 43 is not in contact with the inner wall of the movable cylinder 20.
A certain gap exists between the outer wall of the fixed cylinder body 10 and the inner wall of the movable cylinder body 20, and the fixed cylinder body and the movable cylinder body are not directly abutted; the fixed cylinder body 10 is provided with a convex sealing component 40, and the fixed cylinder body 10 is abutted with the inner wall of the movable cylinder body 20 through the sealing component 40; a guide block 51 protruding toward the fixed cylinder 10 is fixed to the movable cylinder 20, and the guide block 51 abuts against the outer wall of the fixed cylinder 10. The transfer part 13 is provided with a plurality of block structures with consistent height and is arranged at the bottom of the fixed cylinder body 10, and the transfer part 13 forms a long strip-shaped gap in the XY two directions so as to facilitate the fork truck to extend into and transfer.
The device can be of a two-stage or multi-stage cylinder sleeve structure, and particularly at least one movable cylinder body 20 is arranged, so that a plurality of movable cylinder bodies 20 can be arranged in the vertical direction, and the movable and telescopic functions in the vertical direction can be met.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. The telescopic multi-stage cylinder sleeve of the 3D printer is characterized by comprising a cylinder sleeve assembly provided with a transfer part, wherein the transfer part extends out along the side surface or the bottom of the cylinder sleeve assembly and forms a transfer supporting structure; the cylinder sleeve assembly comprises a fixed cylinder body and a movable cylinder body which are connected in a sliding mode in the vertical direction, the fixed cylinder body is arranged below the movable cylinder body, and a forming substrate of a 3D model is arranged on the top surface of the fixed cylinder body.
2. The telescopic multi-stage cylinder liner of a 3D printer of claim 1, wherein the fixed cylinder and the movable cylinder are connected by a compressible elastic member, a lowest point of the movable cylinder corresponds to a compressed state of the elastic member, and a highest point of the movable cylinder corresponds to a relaxed state of the elastic member.
3. The telescopic multi-stage cylinder liner of the 3D printer of claim 2, wherein the elastic members are nitrogen springs, and the elastic members are arranged on the periphery of the cylinder liner assembly in a separated and symmetrical mode.
4. The telescopic multi-stage cylinder sleeve of the 3D printer according to claim 2, wherein the cylinder sleeve assembly is rectangular, reinforcing pieces are fixed on the outer walls of the periphery of the movable cylinder body, and the reinforcing pieces positioned above are arranged in a rectangular ring and are connected with the top ends of the elastic pieces; the elastic pieces are distributed in four corners close to the cylinder sleeve assembly.
5. The telescopic multi-stage cylinder liner of a 3D printer of claim 1, wherein the movable cylinder is sleeved outside the fixed cylinder, and a sealing assembly is provided between the movable cylinder and the fixed cylinder.
6. The telescopic multi-stage cylinder liner of the 3D printer according to claim 5, wherein a concave sealing groove is formed in the periphery of the top of the fixed cylinder body, the sealing assembly is arranged in the sealing groove and protrudes out of the outer surface of the fixed cylinder body, and the sealing assembly is abutted with the inner wall of the movable cylinder body.
7. The telescopic multi-stage cylinder liner of the 3D printer according to claim 6, wherein the sealing assembly comprises a felt and a sealing ring, the felt is positioned above the sealing ring and is provided with two layers, a pressing plate is arranged between the felt and the sealing ring, and the pressing plate is used for pressing the sealing ring; the felt and the sealing ring are abutted against the inner wall of the movable cylinder body.
8. The telescopic multi-stage cylinder liner of a 3D printer according to claim 1, wherein a guiding assembly is fixed in the circumferential direction of the lower part of the moving cylinder, and the guiding assembly is provided with a guiding block and is in sliding abutment with the fixed cylinder.
9. The telescopic multi-stage cylinder sleeve of the 3D printer according to claim 8, wherein the guide assembly comprises a mounting block fixed on the outer wall of the movable cylinder body and a limiting block provided with a hook-shaped structure, and the guide block is in a step shape; limiting blocks are arranged on two opposite sides of the guide block, and the step structures of the guide block are pressed on the mounting block by the hook-shaped structures of the two limiting blocks.
10. The telescopic multi-stage cylinder liner of the 3D printer according to claim 1, wherein the transfer part is arranged at the bottom of the fixed cylinder body and forms a base of the cylinder liner assembly, and the transfer part is a plurality of block structures arranged at intervals so as to form a plurality of strip gaps which can be extended by a forklift in XY two directions of the bottom of the cylinder liner assembly.
CN202310431787.6A 2023-04-19 2023-04-19 Scalable multistage cylinder liner of 3D printer Pending CN116238152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310431787.6A CN116238152A (en) 2023-04-19 2023-04-19 Scalable multistage cylinder liner of 3D printer

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Application Number Priority Date Filing Date Title
CN202310431787.6A CN116238152A (en) 2023-04-19 2023-04-19 Scalable multistage cylinder liner of 3D printer

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Publication Number Publication Date
CN116238152A true CN116238152A (en) 2023-06-09

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CN202310431787.6A Pending CN116238152A (en) 2023-04-19 2023-04-19 Scalable multistage cylinder liner of 3D printer

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