阅读说明：本技术 一种3d打印机折叠框架及折叠方法 (Folding frame and folding method of 3D printer ) 是由 吴震 黄一山 杨红九 吴杰华 谢安琼 杨华杰 于 2021-09-30 设计创作，主要内容包括：本发明属于3D打印设备技术领域,特别涉及一种3D打印机折叠框架及折叠方法,包括上平台、下平台和三组折叠部；所述上平台与下平台互为镜像设置；三组所述折叠部以上平台和下平台为中心呈圆周阵列,设置在上平台和下平台之间；所述折叠部包括第一连接组件、第二连接板、竖直滑轨、第三连接板和第二连接组件；通过设置上平台、下平台和三组折叠部,使得在运输时无需将所述折叠框架拆成一个个单独的零件,即可减小折叠框架所占的空间,便于运输；并且在运输完毕后也无需对折叠框架重新进行组装,省时省力。(The invention belongs to the technical field of 3D printing equipment, and particularly relates to a folding frame and a folding method of a 3D printer, which comprise an upper platform, a lower platform and three groups of folding parts; the upper platform and the lower platform are arranged in a mirror image manner; the three groups of folding parts are arranged between the upper platform and the lower platform in a circumferential array by taking the upper platform and the lower platform as centers; the folding part comprises a first connecting assembly, a second connecting plate, a vertical sliding rail, a third connecting plate and a second connecting assembly; by arranging the upper platform, the lower platform and the three groups of folding parts, the space occupied by the folding frame can be reduced without disassembling the folding frame into individual parts during transportation, and the transportation is facilitated; and the folding frame does not need to be assembled again after the transportation is finished, so that the time and the labor are saved.)

1. The utility model provides a 3D printer folding frame which characterized in that: comprises an upper platform (1), a lower platform (7) and three groups of folding parts; the upper platform (1) and the lower platform (7) are arranged in a mirror image manner; the three groups of folding parts are arranged between the upper platform (1) and the lower platform (7) in a circumferential array by taking the upper platform (1) and the lower platform (7) as centers; the folding part comprises a first connecting component (2), a second connecting plate (3), a vertical sliding rail (4), a third connecting plate (5) and a second connecting component (6), the first connecting component (2) and the second connecting component (6) are arranged in a mirror image mode, and a movable spray head (8) of the 3D printer is connected to the vertical sliding rail (4) through a folding support;

one end of the first connecting component (2) is hinged to the upper platform (1), and one end of the second connecting plate (3) is hinged to the other end of the first connecting component (2); the first connecting component (2) can be fixedly connected with the upper platform (2) and the second connecting plate (3) through a fixing mechanism; one end of the second connecting component (6) is hinged to the lower platform (7), and one end of the third connecting plate (5) is hinged to the other end of the second connecting component (6); the second connecting assembly (6) can be fixedly connected with the lower platform (7) and the third connecting plate (5) through a fixing mechanism; the two ends of the vertical sliding rail (4) are hinged to the other end of the second connecting plate (3) and the other end of the third connecting plate (5) respectively, and the vertical sliding rail (4) can be fixedly connected with the second connecting plate (3) and the third connecting plate (5) through a fixing mechanism.

2. The 3D printer folding frame according to claim 1, characterized in that: the upper platform (1) comprises a first fixing plate (11) and a boss (12); the three groups of bosses (12) are fixedly arranged on the first fixing plate (11) and are in a circumferential array by taking the circle center of the first fixing plate (11) as the center; every group the both ends of boss (12) are fixed mounting respectively has second fixed plate (13), first hinge hole (132) have been seted up to the one end that first fixed plate (11) were kept away from in second fixed plate (13).

3. The 3D printer folding frame according to claim 2, characterized in that: first connecting element (2) include first connecting plate (21) and first rotation piece (22), first draw-in groove (212) have been seted up to the last face of first connecting plate (21), first rotation piece (22) rotate the joint and are in the one end that boss (12) were kept away from in first draw-in groove (212).

4. The 3D printer folding frame according to claim 3, characterized in that: the first connection assembly (2) further comprises a first stretch (23); the first extending part (23) is hinged to the first rotating block (22), and the first extending part (23) is clamped in the first clamping groove (212).

5. The 3D printer folding frame according to claim 4, characterized in that: one end fixed mounting that first connecting plate (21) is close to boss (12) has first articulated post (213), first articulated post (213) rotate the joint in first hinge hole (132).

6. The 3D printer folding frame according to claim 3, characterized in that: one end, far away from boss (12), of first connecting plate (21) is fixedly mounted with a second hinge post (215), and second hinge post (215) is articulated with one end of second connecting plate (3).

7. The 3D printer folding frame according to claim 4, characterized in that: the first rotating block (22) comprises a first connecting block (221) and a second connecting block (222); the first connecting block (221) is fixedly connected with the second connecting block (222); third hinge posts (224) are further arranged on two sides of the first connecting block (221), and the third hinge posts (224) are rotatably clamped with the side wall of the first clamping groove (212); the second connecting block (222) is quadrangular; and a second hinge hole (225) is formed in the upper end of the second connecting block (222).

8. The 3D printer folding frame according to claim 7, characterized in that: the first stretch (23) comprises a first stretch plate (231) and a second stretch plate (232); one end of the first stretching plate (231) is fixedly provided with a fourth hinged column (2311), and the second stretching plate (232) is a cuboid; one end of the second stretching plate (232) is also provided with a second clamping groove (2322); the other end of the first stretching plate (231) is hinged with the other end of the second stretching plate (232); the fourth hinge column (2311) is rotationally clamped in the second hinge hole (225); the second connecting block (222) can be clamped in the second clamping groove (2322).

9. The 3D printer folding frame according to claim 8, characterized in that: the first stretching plates (231) and the second stretching plates (232) are arranged to be 1/3 cylinders, so that the three groups of first stretching plates (231) and the three groups of second stretching plates (232) form a complete cylinder column after being unfolded, and surround the periphery of the vertical sliding rail (4) and the movable spray head (8).

10. A method for folding a folding frame of a 3D printer according to any one of claims 1 to 9, characterized in that it comprises the following steps:

releasing the first connecting component from being fixed with the upper platform;

rotating the first connecting assembly and the second connecting assembly to keep the first connecting assembly and the second connecting assembly parallel;

and fixedly connecting the first connecting assembly with the second connecting assembly to enable the first connecting assembly and the second connecting assembly to be positioned on the outer side of the vertical slide rail.

Technical Field

The invention belongs to the technical field of 3D printing equipment, and particularly relates to a folding frame and a folding method of a 3D printer.

Background

The 3D printer is a device applying a rapid prototyping technology, and is based on a digital model file, and utilizes a bondable material such as powdered metal or plastic to construct an object in a layer-by-layer printing mode, so that a structure which is very difficult or even impossible to process by a traditional material removing processing technology can be constructed.

The frame of the existing 3D printer cannot be folded and occupies a large space, so that the frame must be disassembled into individual parts before transportation, and the occupied space is reduced; however, after transportation, individual parts must be reassembled, which is time-consuming and laborious.

Disclosure of Invention

Aiming at the problems, the invention provides a 3D printer folding frame which comprises an upper platform, a lower platform and three groups of folding parts; the upper platform and the lower platform are arranged in a mirror image manner; the three groups of folding parts are arranged between the upper platform and the lower platform in a circumferential array by taking the upper platform and the lower platform as centers; the folding part comprises a first connecting assembly, a second connecting plate, a vertical sliding rail, a third connecting plate and a second connecting assembly, and the first connecting assembly and the second connecting assembly are arranged in a mirror image manner;

one end of the first connecting component is hinged to the upper platform, and one end of the second connecting plate is hinged to the other end of the first connecting component; the first connecting assembly can be fixedly connected with the upper platform and the second connecting plate through a fixing mechanism; one end of the second connecting assembly is hinged to the lower platform, and one end of the third connecting plate is hinged to the other end of the second connecting assembly; the second connecting assembly can be fixedly connected with the lower platform and the third connecting plate through a fixing mechanism; the two ends of the vertical sliding rail are respectively hinged to the other end of the second connecting plate and the other end of the third connecting plate, and the vertical sliding rail can be fixedly connected with the second connecting plate and the third connecting plate through a fixing mechanism.

Further, the upper platform comprises a first fixing plate and a boss; the three groups of bosses are fixedly arranged on the first fixing plate and are in a circumferential array by taking the circle center of the first fixing plate as the center; and the two ends of each group of bosses are respectively and fixedly provided with a second fixing plate, and one end of each second fixing plate, which is far away from the first fixing plate, is provided with a first hinge hole.

Furthermore, first connecting element includes first connecting plate and first rotation piece, first draw-in groove has been seted up to the last face of first connecting plate, first rotation piece rotates the joint and is in the one end that the boss was kept away from to first draw-in groove.

Further, the first connecting assembly further comprises a first extending part; the first extending portion is hinged to the first rotating block, and the first extending portion is clamped in the first clamping groove.

Furthermore, one end of the first connecting plate close to the boss is fixedly provided with a first hinge column, and the first hinge column is rotatably connected in the first hinge hole in a clamping manner.

Furthermore, one end of the first connecting plate, which is far away from the boss, is fixedly provided with a second hinge column, and the second hinge column is hinged with one end of the second connecting plate.

Further, the first rotating block comprises a first connecting block and a second connecting block; the first connecting block is fixedly connected with the second connecting block; third hinge posts are further arranged on two sides of the first connecting block and rotatably clamped with the side walls of the first clamping grooves; the second connecting block is quadrangular; and a second hinge hole is formed in the upper end of the second connecting block.

Further, the first stretching part comprises a first stretching plate and a second stretching plate; a fourth hinge column is fixedly installed at one end of the first stretching plate, and the second stretching plate is a cuboid; one end of the second stretching plate is also provided with a second clamping groove; the other end of the first stretching plate is hinged with the other end of the second stretching plate; the fourth hinge column is rotatably clamped in the second hinge hole; but the second connecting block joint is in the second draw-in groove.

Furthermore, the first stretching plate and the second stretching plate can be arranged in a cylindrical shape, so that the three groups of first stretching plates and the three groups of second stretching plates form a complete cylindrical shape after being unfolded, and the complete cylindrical shape surrounds the vertical sliding rail.

A folding method of a 3D printer folding frame comprises the following steps:

releasing the first connecting component from being fixed with the upper platform;

rotating the first connecting assembly and the second connecting assembly to keep the first connecting assembly and the second connecting assembly parallel;

and fixedly connecting the first connecting assembly with the second connecting assembly to enable the first connecting assembly and the second connecting assembly to be positioned on the outer side of the vertical slide rail.

The invention has the beneficial effects that:

1. by arranging the upper platform, the lower platform and the three groups of folding parts, the space occupied by the folding frame in the height and width directions can be reduced without disassembling the folding frame into individual parts during transportation, and the transportation is facilitated; and the folding frame does not need to be assembled again after the transportation is finished, so that the time and the labor are saved.

2. The second that stretches board and second coupling assembling through making first coupling assembling stretches board fixed connection, and is located the outside of vertical slide rail forms the drum post that surrounds, protects vertical slide rail and printing shower nozzle, avoids when the transportation, and vertical slide rail receives the collision and damages with printing the shower nozzle to can avoid colliding with and the part is lost, the protection effect is better, and portable.

3. The bolt penetrates through the first rotating block and is in threaded connection with the fourth fixing hole, so that the first rotating block is fixedly connected with the first clamping groove, and the stability of the first extending portion in the first clamping groove is improved.

4. Through stretching the panel with the second and be cuboid or semi-cylindrical, stretch the panel when the second is located first draw-in groove, when first linkage block was fixed in first draw-in groove, the second stretched the panel and can prevent first the panel of stretching to rotate with the axle center of fourth hinge post for first panel of stretching and second stretched the panel and all fix in the first draw-in groove, avoid first panel of stretching and second to stretch the panel and break away from in following first draw-in groove, the structure is more stable.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 shows a schematic structural view of a folding frame of an embodiment of the present invention;

FIG. 2 shows a schematic structural diagram of an upper platform of an embodiment of the present invention;

FIG. 3 illustrates a schematic structural diagram of a first connection assembly of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a first connecting plate according to an embodiment of the present invention;

FIG. 5 shows a schematic structural diagram of a first rotating block of an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating a first perspective of a first extension according to an embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating a second perspective of the first extension according to an embodiment of the present invention;

figure 8 shows a schematic structural view of a preferred embodiment of the first stretch of an embodiment of the invention;

FIG. 9 is a schematic structural diagram of a second connecting plate according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a vertical slide rail according to an embodiment of the present invention;

fig. 11 shows a schematic structural view of the folded frame according to the embodiment of the present invention after folding.

In the figure: 1. an upper platform; 11. a first fixing plate; 111. a first threaded through hole; 12. a boss; 13. a second fixing plate; 131. a first fixing hole; 132. a first hinge hole; 2. a first connection assembly; 21. a first connecting plate; 211. a first through hole; 212. a first card slot; 213. a first hinge post; 214. a second fixing hole; 215. a second hinge post; 216. a third fixing hole; 217. a fourth fixing hole; 22. a first rotating block; 221. a first connection block; 222. a second connecting block; 223. a fifth fixing hole; 224. a third hinge post; 225. a second hinge hole; 23. a first extending portion; 231. a first extending plate; 2311. a fourth hinge column; 232. a second stretching plate; 2321. a sixth fixing hole; 2322. a second card slot; 3. a second connecting plate; 31. a third hinge hole; 32. a seventh fixing hole; 33. an eighth fixing hole; 34. a fourth hinge hole; 35. a third card slot; 4. a vertical slide rail; 41. a ninth fixing hole; 42. a fifth hinge column; 43. a tenth fixing hole; 5. a third connecting plate; 6. a second connection assembly; 7. a lower platform; 8. the spray head is moved.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a 3D printer folding frame, which comprises an upper platform 1, a lower platform 7 and three groups of folding parts, and is exemplarily shown in FIG. 1.

The upper platform 1 and the lower platform 7 are arranged in a mirror image manner; the upper end and the lower end of the three groups of folding parts are respectively hinged on the upper platform 1 and the lower platform 7; and the three groups of folding parts are arranged between the upper platform 1 and the lower platform 7 in a circumferential array by taking the upper platform 1 and the lower platform 7 as centers.

The folding part comprises a first connecting component 2, a second connecting plate 3, a vertical sliding rail 4, a third connecting plate 5 and a second connecting component 6;

one end of the first connecting component 2 is hinged on the upper platform 1, and one end of the second connecting plate 3 is hinged on the other end of the first connecting component 2; both ends of first connecting set 2 all are provided with fixed establishment, first connecting set 2 accessible fixed connection with upper platform 1 and second connecting plate 3.

One end of the second connecting assembly 6 is hinged to the lower platform 7, and one end of the third connecting plate 5 is hinged to the other end of the second connecting assembly 6; both ends of second coupling assembling 6 all are provided with fixed establishment, 6 accessible fixed establishment of second coupling assembling and platform 7 and third connecting plate 5 fixed connection down.

And two ends of the vertical slide rail 4 are respectively hinged at the other end of the second connecting plate 3 and the other end of the third connecting plate 5. The two ends of the vertical slide rail 4 are both provided with fixing mechanisms, and the vertical slide rail 4 can be fixedly connected with the second connecting plate 3 and the third connecting plate 5 through the fixing mechanisms.

By arranging the upper platform 1, the lower platform 7 and the three groups of folding parts, the space occupied by the folding frame can be reduced without disassembling the folding frame into individual parts during transportation, and the transportation is facilitated; and the folding frame does not need to be assembled again after the transportation is finished, so that the time and the labor are saved.

The lower platform 7 is used for mounting a printing platform of a 3D printer, and the printing platform and the folding frame are arranged in a split mode; when in use, the printing platform is directly arranged on the lower platform.

The upper portion of the vertical sliding rail 4 is connected with a movable spray head 8 of the 3D printer through a folding support, the movable spray head 8 is connected with the folding support through an electric cylinder, and the movable spray head 8 is driven by the electric cylinder to move according to a preset printing model.

The upper platform 1 and the lower platform 7 are arranged in a mirror image manner, and the upper platform 1 is taken as an example for explanation; the upper platform 1 includes a first fixing plate 11 and a boss 12, as shown in fig. 2, for example.

The first fixing plate 11 is provided with a first threaded through hole 111, and illustratively, the threaded through hole of the lower platform 7 is used for mounting a printing platform.

The three groups of bosses 12 are all fixedly mounted on the first fixing plate 11, and are in a circumferential array with the center of circle of the first fixing plate 11 as the center.

Every group there is second fixed plate 13 at the both ends of boss 12 fixed mounting respectively, first fixed orifices 131 have been seted up to the one end that second fixed plate 13 is close to first fixed plate 11, first hinge hole 132 has been seted up to the one end that first fixed plate 11 was kept away from to second fixed plate 13.

The first connecting component 2 and the second connecting component 6 are mirror images, and the first connecting component 2 is taken as an example for description; the first joint assembly 2 comprises a first joint plate 21, a first rotation block 22 and a first stretch 23, as shown in figures 3 and 4, for example.

A first clamping groove 212 is formed in the upper plate surface of the first connecting plate 21, and the first rotating block 22 is rotatably clamped at one end, far away from the boss 12, of the first clamping groove 212; the first extending portion 23 is hinged to the first rotating block 22, and the first extending portion 23 is clamped in the first clamping groove 212.

A fourth fixing hole 217 is formed in the bottom of the first engaging groove 212, and for example, a bolt may penetrate through the first rotating block 22 and be screwed into the fourth fixing hole 217, so that the first rotating block 22 is fixedly connected to the first engaging groove 212, and the stability of the first extending portion 23 in the first engaging groove 212 is increased.

The upper plate surface of the first connecting plate 21 is further provided with a first through hole 211, and the first through hole 211 is located at one end of the first rotating block 22 away from the boss 12; illustratively, the first extending portion 23 may penetrate the first through hole 211 by rotating the first rotating block 22 counterclockwise as shown in fig. 3 by 180 °.

First connecting plate 21 is close to the one end fixed mounting of boss 12 has first hinge post 213, second fixed orifices 214 have been seted up to one side that first hinge post 213 is close to boss 12, first hinge post 213 rotates the joint in first hinge orifice 132. Illustratively, the first connecting plate 21 is fixedly connected to the second fixing plate 13 by screwing bolts into the second fixing holes 214 through the first fixing holes 131.

A second hinge column 215 is fixedly installed at one end of the first connecting plate 21 far away from the boss 12, and the second hinge column 215 is hinged with one end of the second connecting plate 3; a third fixing hole 216 is formed on one side of the second hinge post 215 away from the first hinge post 213. Illustratively, the first connecting plate 21 is fixedly connected with the second connecting plate 3 by bolts penetrating through the second connecting plate 3 and screwed in the third fixing holes 216.

The first rotation block 22 includes a first connection block 221 and a second connection block 222, as shown in fig. 5 for example.

The first connecting block 221 is fixedly connected with the second connecting block 222; a fifth fixing hole 223 is formed on the first connecting block 221;

the two sides of the first connecting block 221 are further provided with third hinge posts 224, and the third hinge posts 224 are rotatably clamped with the side walls of the first clamping grooves 212.

The second connecting block 222 is quadrangular; the upper end of the second connecting block 222 is provided with a second hinge hole 225.

The first extension portion 23 includes a first extension plate 231 and a second extension plate 232, as shown in fig. 6 and 7, for example.

A fourth hinge column 2311 is fixedly installed at one end of the first stretching plate 231, and the second stretching plate 232 is a cuboid; a sixth fixing hole 2321 is formed at one end of the second stretching plate 232, and a second clamping groove 2322 is further formed at one end of the second stretching plate 232; the other end of the first stretching plate 231 is hinged with the other end of the second stretching plate 232.

The fourth hinge post 2311 is rotatably clamped in the second hinge hole 225; the second connecting block 222 can be connected to the second clamping groove 2322 in a clamped manner, and because the second extending plate 232 is a cuboid, when the second extending plate 232 is located in the first clamping groove 212 and the first connecting block 221 is fixed in the first clamping groove 212, the second extending plate 232 can prevent the first extending plate 231 from rotating around the axis of the fourth hinge column 2311, so that the first extending plate 231 and the second extending plate 232 are both fixed in the first clamping groove 212, and the first extending plate 231 and the second extending plate 232 are prevented from being separated from the first clamping groove 212, and the structure is more stable.

Preferably, as shown in fig. 8; first panel 231 and the second of stretching still can set up to 1/3 cylindrically, and the first connecting plate 21 of part through setting up first connecting assembly 2, first draw-in groove 212, the first width and the length size that stretch panel 231 and second stretch panel 232, make three first panels 231 and the second of stretching of three groups stretch panel 232 and expand the back equipment and form a complete drum post, the drum post surrounds vertical slide rail 4 and the periphery that removes shower nozzle 8, the vertical slide rail of protection that can not only be complete can also protect 3D printer shower nozzle, avoid colliding with and the part is lost, the protection effect is better, and portable.

Illustratively, the first connecting block 221 is fixedly connected with the first clamping groove 212 by penetrating a bolt through the fifth fixing hole 223 and screwing the bolt in the fourth fixing hole 217; the first extending plate 231 and the second extending plate 232 are fixed in the first locking groove 212.

The second connecting plate 3 and the third connecting plate 5 are mirror images of each other, and the second connecting plate 3 is taken as an example for illustration; exemplary, as shown in FIG. 9; the upper end of the second connecting plate 3 is provided with a third hinge hole 31 and a seventh fixing hole 32; eighth fixed orifices 33, fourth hinge hole 34 and third draw-in groove 35 have been seted up in proper order to the lower extreme of second connecting plate 3, third draw-in groove 35 is the arc wall, the centre of a circle of third draw-in groove 35 is located outside second connecting plate 3.

The upper end and the lower end of the vertical slide rail 4 are arranged in a mirror image manner; the upper end of the vertical slide rail 4 is taken as an example and is exemplarily shown in fig. 10.

The upper end of the vertical slide rail 4 is sequentially provided with a ninth fixing hole 41, a fifth hinge column 42 and a tenth fixing hole 43, and the bolts sequentially penetrate through the eighth fixing hole 33 and the ninth fixing hole 41 so that the vertical slide rail 4 is fixedly connected with the second connecting plate 3.

The fifth hinge column 42 is rotatably clamped in the fourth hinge hole 34; illustratively, the vertical slide rail 4 is fixedly connected with the second connecting plate 3 by bolts penetrating through the eighth fixing holes 33 and screwed in the ninth fixing holes 41.

The folding frame may be foldable, as shown, for example, in fig. 11;

firstly, the fixation of the second fixing plate 13 and the first connecting plate 21, the fixation of the first connecting plate 21 and the second connecting plate 3, the fixation of the first connecting block 221 and the first connecting plate 21, the fixation of the vertical slide rail 4 and the second connecting plate 3, the fixation of the vertical slide rail 4 and the third connecting plate 5, the fixation of the third connecting plate 5 and the second connecting assembly 6, and the fixation of the second connecting assembly 6 and the lower platform 7 are released.

Secondly, the first connecting plate 21 of the first connecting assembly 2 is rotated clockwise by 90 ° so that the first connecting plate 21 of the first connecting assembly 2 is positioned between the upper platform 1 and the lower platform 7; meanwhile, the three groups of vertical slide rails 4 are close to the central axis of the first fixing plate 11; so that the first connecting plate 21 is located outside said vertical sliding rail 4. And then, a bolt penetrates through the ninth fixing hole 41, so that the bolt is clamped in the third clamping groove 35, the vertical slide rails 4 are kept stable, and collision among three groups of vertical slide rails 4 is avoided.

Afterwards, rotate first linkage block 221 clockwise 180 to run through fifth fixed orifices 223 and fourth fixed orifices 217 fixed connection through the bolt, make first extension board 231 and first connecting plate 21 keep parallel, stretch the second extension board 232 to be parallel with first linkage block 221 again, make the second of first coupling component 2 stretch the second of extension board 232 and second coupling assembling 6 and stretch the extension board 232 parallel, and run through two sets of sixth fixed orifices 2321 through the bolt in proper order, make the second of first coupling component 2 stretch the second of extension board 232 and second coupling assembling 6 and stretch extension board 232 fixed connection, and be located the outside of vertical slide rail 4 protects vertical slide rail 4, avoids when the transportation, vertical slide rail 4 receives the collision and damages. Meanwhile, the space occupied by the folding frame can be reduced without disassembling the folding frame into separate parts during transportation, so that the folding frame is convenient to transport; and the folding frame does not need to be assembled again after the transportation is finished, so that the time and the labor are saved.

The embodiment of the invention also provides a folding method of the folding frame of the 3D printer, which comprises the following steps:

releasing the first connecting component from being fixed with the upper platform;

rotating the first connecting plates of the first connecting assembly and the first connecting plates of the second connecting assembly to keep the two groups of first connecting plates parallel;

releasing the first connecting plate from being fixed with the first rotating block;

rotating the first rotating block to enable the first extending plate to be parallel to the first connecting plate;

rotating the second stretching plate to enable the second stretching plate to be parallel to the first stretching plate;

the second extending plate of the first connecting assembly is fixedly connected with the second extending plate of the second connecting assembly through bolts, so that the second extending plate of the first connecting assembly and the second extending plate of the second connecting assembly are positioned on the outer side of the vertical slide rail.

Specifically, the fixation of the second fixing plate and the first connecting plate, the fixation of the first connecting plate and the second connecting plate, the fixation of the first connecting block and the first connecting plate, the fixation of the vertical slide rail and the second connecting plate, the fixation of the vertical slide rail and the third connecting plate, the fixation of the third connecting plate and the second connecting assembly, and the fixation of the second connecting assembly and the lower platform are firstly released.

Secondly, rotating the first connecting plate of the first connecting assembly by 90 degrees clockwise, so that the first connecting plate of the first connecting assembly is positioned between the upper platform and the lower platform; meanwhile, the three groups of vertical sliding rails are close to the central axis of the first fixing plate; so that the first connecting plate is located outside the vertical slide rail. And the bolt penetrates through the ninth fixing hole to be clamped in the third clamping groove, so that the vertical slide rails are kept stable, and collision among three groups of vertical slide rails is avoided.

Afterwards, with first linkage block clockwise turning 180 to run through fifth fixed orifices and fourth fixed orifices fixed connection through the bolt, make first panel and the first connecting plate of stretching keep parallel, extend the board upset to be parallel with first linkage block again with the second, make the second of first connecting assembly stretch panel and second coupling assembling stretch the panel parallel, and run through two sets of sixth fixed orifices through the bolt in proper order, make the second of first connecting assembly stretch panel and second coupling assembling's second and stretch panel fixed connection, and be located the outside of vertical slide rail protects vertical slide rail, avoids when the transportation, vertical slide rail receives the collision and damages. Meanwhile, the space occupied by the folding frame can be reduced without disassembling the folding frame into separate parts during transportation, so that the folding frame is convenient to transport; and the folding frame does not need to be assembled again after the transportation is finished, so that the time and the labor are saved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.