CN113059800B - Laser engraving and thermal fusion molding 3D printing method and 3D printing equipment - Google Patents

Laser engraving and thermal fusion molding 3D printing method and 3D printing equipment Download PDF

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Publication number
CN113059800B
CN113059800B CN202110189219.0A CN202110189219A CN113059800B CN 113059800 B CN113059800 B CN 113059800B CN 202110189219 A CN202110189219 A CN 202110189219A CN 113059800 B CN113059800 B CN 113059800B
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blank
laser
groove
blanks
laser engraving
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CN202110189219.0A
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CN113059800A (en
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关雷
郑道友
徐临超
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Zhejiang Industry and Trade Vocational College
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Zhejiang Industry and Trade Vocational College
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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
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/147—Processes of additive manufacturing using only solid materials using sheet material, e.g. laminated object manufacturing [LOM] or laminating sheet material precut to local cross sections of the 3D object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • 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
    • 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
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
    • 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)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Robotics (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses a laser engraving thermal fusion molding 3D printing method, which comprises the following steps: the method comprises the following steps: modeling a 3D object to be printed by adopting a computer, and analyzing the pattern and the shape of each unit thickness layer by a computer processor based on a three-dimensional data model of the 3D object; step two: adopting a laser engraving and cutting mechanism to emit laser to cut and engrave the blank according to the pattern and the shape of the unit layer surface, wherein the thickness of the blank is the same as the unit thickness, stacking the blanks layer by layer, and forming the 3D object by heating or laser irradiation bonding; step three: and modifying the formed 3D object by adopting a grinding or laser engraving mode. The invention also relates to 3D printing equipment used in the laser engraving thermal fusion molding 3D printing method. The method and the device adopt the blank sheet processing, can realize rapid molding and have higher speed.

Description

Laser engraving and thermal fusion molding 3D printing method and 3D printing equipment
Technical Field
The invention relates to a laser engraving and hot fusing molding 3D printing method. The invention also relates to 3D printing equipment used in the laser engraving thermal fusion molding 3D printing method.
Background
3D printing is one of rapid prototyping technologies, which is a technology for constructing an object by using a bondable material such as powdered metal or plastic based on a digital model file and by printing layer by layer. In 3D printing, a fused filament of filamentary material, such as thermoplastic, wax or metal, is typically extruded from a heated nozzle and melt deposited at a fixed rate following a predetermined trajectory for each layer of the part. However, the above techniques require melting and molding of the printing material layer by layer, and thus the printing speed is slow.
Disclosure of Invention
The invention aims to solve the technical problem of providing a laser engraving thermal fusion molding 3D printing method which is higher in printing speed and capable of quickly collecting residues for recycling.
Therefore, the laser engraving thermal fusion molding 3D printing method provided by the invention comprises the following steps:
the method comprises the following steps: modeling a 3D object to be printed by adopting a computer, and analyzing the pattern and the shape of each unit thickness layer by a computer processor based on a three-dimensional data model of the 3D object; step two: adopting a laser engraving and cutting mechanism to emit laser to cut and engrave the blank according to the pattern and the shape of the unit layer surface, wherein the thickness of the blank is the same as the unit thickness, stacking the blanks layer by layer, and forming the 3D object by heating or laser irradiation bonding; step three: and modifying the formed 3D object by adopting a polishing or laser engraving mode.
Further, the residual material of the blank sheet obtained by cutting with the laser engraving and cutting mechanism is collected and conveyed to a blank sheet forming mechanism to be processed into a new blank sheet together with new material.
Further, in the second step: the blank is directly conveyed and stacked on the supporting platform, each stack of blanks is cut and carved according to the patterns and the shapes of the unit layer by the laser carving and cutting mechanism, and the blanks are fixed into a whole by hot pressing after being carved.
The 3D printing method can be used for processing the whole piece, only the outline needs to be cut during processing, and then rays are emitted to the blank piece to fuse the upper blank piece and the lower blank piece, so that the processing speed is higher.
The invention provides 3D printing equipment used in the laser engraving heat fusion molding 3D printing method, which comprises a machine body, wherein a three-dimensional moving frame is arranged on the machine body, a laser heating ray emitting end and a laser cutting ray emitting end are arranged on the three-dimensional moving frame, a platform is arranged on the machine body, a groove is arranged on the platform, a supporting platform is arranged at the bottom of the groove, the supporting platform is supported by a mandril at the lower end, the mandril penetrates through the machine body and is connected with a lifting mechanism arranged in the machine body, the lifting mechanism controls the lifting of the mandril, a blank storage cavity is arranged on the platform and is close to the groove, blanks are stacked in the blank storage cavity from top to bottom, the blank storage cavity is provided with a blank outlet and a pushing outlet which are respectively arranged at two sides of the blank storage cavity, a pushing mechanism is arranged at the side edge of the blank storage cavity, a pushing rod of the pushing mechanism is aligned with the pushing outlet, the pushing mechanism drives the pushing rod to push the blanks out from the blank outlet to the supporting platform of the groove or processed blanks on the supporting platform, the blanks after the pushing rod pushes out the blanks to the blanks, and the blanks to fall to the bottom of the blanks stored.
The 3D printing equipment used in the laser engraving and hot melting molding 3D printing method can be used for processing the whole piece, only the outline needs to be cut during processing, and then rays are emitted to the blank to fuse the upper blank and the lower blank, so that the processing speed is higher, and the processing method is favorable for collecting residual materials and processing after the grooves are configured.
Furthermore, a barrier strip is arranged on the platform and close to the side edge of the groove, the barrier strip is positioned on the opposite side of the blank storage cavity, and the barrier strip is in a U shape lying down. The arrangement of the barrier strips can enable the conveying of the blank sheets to be more in place.
Furthermore, the lower end surface of the groove is distributed in an inclined surface mode, an inclined blanking groove matched with the inclined surface is formed in the side surface of the groove, and residual materials are discharged from the inclined blanking groove. The inclined distribution of the inclined downward trough and the bottom of the groove is beneficial to discharging the residual materials.
Further, the thickness of the push rod is consistent with that of the blank. The blank sheet above the bottom can be stably supported after the blank sheet at the bottom is conveniently pushed out.
Further, the three-dimensional moving frame comprises two vertical frame plates which are vertically distributed, vertical moving members capable of moving relative to the vertical frame plates are arranged on the two vertical frame plates in an equal-height mode, transverse frame plates are fixed on the vertical moving members, transverse moving members capable of moving relative to the transverse frame plates are arranged on the transverse frame plates, the bottoms of the two vertical frame plates are respectively fixed on two front and rear moving members which are arranged on the left and right in a separated mode, a front and rear moving rail is arranged on a platform of the machine body, the front and rear moving members are arranged on the front and rear moving rail, sliding rails are arranged on the vertical frame plates, the transverse frame plates and the front and rear moving members, and the transverse moving members, the vertical moving members and the front and rear moving members are all sleeved on the corresponding sliding rails and are provided with driving mechanisms. The three-dimensional moving frame can enable the laser heating ray emitting end and the laser cutting ray emitting end to accurately reach positions required by machining.
Drawings
Fig. 1 is a schematic structural diagram of a 3D printing apparatus provided in the present invention, in which the push rod is not pushed out.
Fig. 2 is a schematic structural diagram of the 3D printing apparatus provided in the present invention, in which the push rod is pushed out.
Fig. 3 is a schematic structural diagram of the 3D printing apparatus in fig. 2 after the three-dimensional moving frame is removed.
Fig. 4 is a partial view of the top view of the body of fig. 3, wherein the configuration of the grooves and the back-and-forth movement rails are mainly shown.
Fig. 5 is a schematic structural view of the three-dimensional moving frame of fig. 1 in a state where the laser emitting end is not mounted.
Fig. 6 is a schematic structural view of the three-dimensional moving frame in fig. 5 after the laser emitting end is installed.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front", "back", "left", "right", "upper" and "lower" refer to directions in the drawings, and the terms "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1 to 6, the laser engraving thermal fusion molding 3D printing method provided by the present invention includes:
the method comprises the following steps: modeling a 3D object to be printed by adopting a computer, and analyzing the pattern and the shape of each unit thickness layer by a computer processor based on a three-dimensional data model of the 3D object;
step two: adopting a laser engraving and cutting mechanism to emit laser to cut and engrave the blank sheet 1 according to the pattern and the shape of a unit layer, wherein the thickness of the blank sheet 1 is the same as the unit thickness, stacking the blank sheets layer by layer, and forming the 3D object by heating or laser irradiation bonding;
step three: and modifying the formed 3D object by adopting a grinding or laser engraving mode.
Referring to fig. 1 and 2, the residual material of the blank sheet 1 cut by the laser engraving and cutting mechanism is collected and conveyed to a blank sheet forming mechanism to be processed into a new blank sheet 1 together with the new material.
Referring to fig. 1 and 2, in the second step: the blank 1 is directly conveyed and stacked on the supporting platform, each stack of blank 1 is cut and carved by the laser carving and cutting mechanism according to the patterns and shapes of the unit layer, and the blank is fixed into a whole by hot pressing after carving.
Referring to fig. 1-6, the 3D printing apparatus used in the laser engraving thermal fusion molding 3D printing method provided by the invention comprises a body 2, a three-dimensional moving frame is arranged on the body 2, a laser heating ray emitting end 3 and a laser cutting ray emitting end 4 are arranged on the three-dimensional moving frame, the laser heating ray emitting end 3 and the laser cutting ray emitting end 4 are jointly arranged on a moving laser body 5, a platform 6 is arranged on the body 2, a groove 7 is arranged on the platform 6, a support platform 8 is arranged at the bottom of the groove 7, hollow holes 9 are densely distributed on a support platform plate of the support platform 8, most of the residual materials can fall to the bottom of the groove 7 from the hollow holes, the support platform 8 is supported by a mandril 10 at the lower end, the mandril 10 penetrates through the body 2 and is connected with a lifting mechanism 11 arranged in the body 2, the lifting mechanism 11 controls the lifting of the ejector rod 10, a blank storage cavity 12 is arranged on the platform 6 and close to the groove 7, blanks 1 are stacked in the blank storage cavity 12 from top to bottom, the blank storage cavity 12 is provided with a blank outlet 13 and an ejection opening 14 which are respectively arranged at two sides of the blank storage cavity 12, an ejection mechanism 15 is arranged at the side edge of the blank storage cavity 12, a push rod 16 of the ejection mechanism 15 is aligned with the ejection opening 14, the ejection mechanism 15 drives the push rod 16 to push the blanks 1 out of the blank outlet 13 onto the supporting platform 8 of the groove 7 or a processed blank 17 on the supporting platform 8, the push rod 16 pushes the blanks 1 out of the blank storage cavity 12, the push rod 16 supports the blanks 1 above, and the blanks 1 above the blanks 1 after the push rod 16 exits the blank storage cavity 12 fall to the bottom.
Referring to fig. 1, a stop strip 18 is arranged on the platform adjacent to the side edge of the groove 7, the stop strip is arranged on the opposite side of the blank storage cavity 12, and the stop strip 18 is in a U shape of lying down. The blend stop 18 inboard can set up telescopic strip 19, and telescopic strip 19 disposes flexible actuating mechanism, can adopt cam mechanism reciprocating motion to drive telescopic strip 19 round trip movement to realize flexible, and the mounted position of telescopic strip 19 is the side direction groove on the recess 7 lateral wall, and telescopic strip 19 can enter into the space that blend stop 18 surrounded and when being in telescopic strip 19 on the embryonic lamella 1 contracts in, and then makes embryonic lamella 1 fall on the processed embryonic lamella 17 of below.
Referring to fig. 1-3, the lower end surface of the groove is distributed in an inclined plane, the side surface of the groove is provided with an inclined blanking groove matched with the inclined plane, the residual material is discharged from the inclined blanking groove, the discharged residual material can be immediately recovered, and then the residual material is melted to be made into a blank sheet.
Referring to fig. 1-3, the thickness of the pushing rod 16 is the same as the thickness of the blank 1.
Referring to fig. 1, 5, and 6, the three-dimensional moving frame includes two vertical shelves 20 that are vertically distributed, vertical moving members that can vertically move relative to the vertical shelves 20 are disposed on the two vertical shelves 20 at equal heights, a horizontal shelf 22 is fixed on the vertical moving members, a horizontal moving member that can horizontally move relative to the horizontal shelf 22 is disposed on the horizontal shelf 22, bottoms of the two vertical shelves 20 are respectively fixed on two front and rear moving members 24 that are disposed on the left and right, a front and rear moving rail 25 is disposed on the platform 6 of the machine body 1, the front and rear moving members 24 are disposed on the front and rear moving rail 25, sliding rails 26 are disposed on the vertical shelves 20, the horizontal shelf 22, and the front and rear moving members 25, the horizontal moving members, the vertical moving members, and the front and rear moving members 24 are all sleeved on the corresponding sliding rails 26 and are configured with driving mechanisms, and the sliding rails and the driving mechanisms of the 3D printing apparatus are all in the prior art.
The operation method of the 3D printing device comprises the following steps: 1. the initial state of the supporting platform 8 is equal to the platform 6, and the blank 1 is pushed onto the supporting platform 8 by the push rod 16 of the pushing mechanism 15; 2. the three-dimensional moving frame is adopted to move the laser body 5 in a three-dimensional mode, the laser cutting ray transmitting end 4 is adopted to perform laser cutting on the blank 1 according to graphic data, when each blank 1 is machined, the supporting platform 8 descends downwards by the height of one blank 1, then one blank 1 is pushed, and the laser heating ray transmitting end 3 is adopted to fuse the upper blank 1 and the lower blank 1 until the formed 3D printing piece is machined.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. The utility model provides a laser sculpture heat fuses into type 3D printing apparatus which characterized by: the laser cutting machine comprises a machine body, wherein a three-dimensional moving frame is arranged on the machine body, a laser heating ray emitting end and a laser cutting ray emitting end are arranged on the three-dimensional moving frame, a platform is arranged on the machine body, a groove is formed in the platform, a supporting platform is arranged at the bottom of the groove and supported by a mandril at the lower end, the mandril penetrates through the machine body to be connected with a lifting mechanism arranged in the machine body, the lifting mechanism controls the lifting of the mandril, a blank storage cavity is arranged on the platform and is adjacent to the groove, blanks are stacked in the blank storage cavity from top to bottom, the blank storage cavity is provided with a blank outlet and a pushing port which are respectively arranged on two sides of the blank storage cavity, a pushing mechanism is arranged on the side edge of the blank storage cavity, a pushing rod of the pushing mechanism is aligned with the pushing port, the pushing mechanism drives the pushing rod to push the blanks out of the blank outlet onto processed blanks on the supporting platform or the supporting platform of the groove, the pushing rod pushes the blanks out of the blanks behind the blank storage cavity to support the blank storage cavity, and the blanks above the pushing rod fall to the bottom.
2. The 3D printing device of claim 1, wherein: and a barrier strip is arranged on the side edge of the platform, which is close to the groove, is positioned on the opposite side of the blank storage cavity, and is in a U shape lying down.
3. The 3D printing device of claim 1, wherein: the lower end surface of the groove is distributed in an inclined surface, the side surface of the groove is provided with an inclined blanking groove matched with the inclined surface, and the residual materials are discharged from the inclined blanking groove.
4. The 3D printing device of claim 2, wherein: the lower end surface of the groove is distributed in an inclined plane, the side surface of the groove is provided with an inclined blanking groove matched with the inclined plane, and residual materials are discharged from the inclined blanking groove.
5. The 3D printing device of claim 1, wherein: the thickness of the push rod is consistent with that of the blank.
6. The 3D printing device of claim 4, wherein: the thickness of the push rod is consistent with that of the blank.
7. The 3D printing device of claim 1, wherein: the three-dimensional moving frame comprises two vertical frame plates which are vertically distributed, vertical moving members which can vertically move relative to the vertical frame plates are arranged on the two vertical frame plates in an equal-height mode, transverse frame plates are fixed on the vertical moving members, transverse moving members which can transversely move relative to the transverse frame plates are arranged on the transverse frame plates, the bottoms of the two vertical frame plates are respectively fixed on two front and rear moving members which are arranged on the left and right, a front and rear moving rail is arranged on a platform of the machine body, the front and rear moving members are arranged on the front and rear moving rail, sliding rails are arranged on the vertical frame plates, the transverse frame plates and the front and rear moving members, and the transverse moving members, the vertical moving members and the front and rear moving members are all sleeved on the corresponding sliding rails and are provided with driving mechanisms.
8. A laser engraving thermal fusion type 3D printing method using the laser engraving thermal fusion type 3D printing apparatus according to claim 1, 2 or 3, comprising:
the method comprises the following steps: modeling a 3D object to be printed by adopting a computer, and analyzing the pattern and the shape of each unit thickness layer by a computer processor based on a three-dimensional data model of the 3D object;
step two: adopting a laser engraving and cutting mechanism to emit laser to cut and engrave the blank according to the pattern and the shape of the unit layer surface, wherein the thickness of the blank is the same as the unit thickness, stacking the blanks layer by layer, and forming the 3D object by heating or laser irradiation bonding;
step three: and modifying the formed 3D object by adopting a grinding or laser engraving mode.
9. The laser engraving thermal fusion molding 3D printing method according to claim 8, wherein: and the residual materials of the blank sheets obtained by cutting by the laser engraving and cutting mechanism are collected and conveyed to the blank sheet forming mechanism to be processed into new blank sheets together with new materials.
10. The laser engraving thermal fusion molding 3D printing method according to claim 9, characterized in that: in the second step: the blank is directly conveyed and stacked on the supporting platform, each stack of blanks is cut and carved according to the patterns and the shapes of the unit layer by the laser carving and cutting mechanism, and the blanks are fixed into a whole by hot pressing after being carved.
CN202110189219.0A 2021-02-19 2021-02-19 Laser engraving and thermal fusion molding 3D printing method and 3D printing equipment Active CN113059800B (en)

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CN114193104A (en) * 2021-12-22 2022-03-18 潍柴动力股份有限公司 Valve body machining method and valve body

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CN105711097A (en) * 2016-03-24 2016-06-29 严若鹏 Thermal cutting type 3D method and printer
CN110961793A (en) * 2019-12-24 2020-04-07 安徽镭科智能科技有限公司 3D printing intelligent processing technology based on laser technology

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