Device suitable for automatically replacing printing platform of 3D printer

Abstract

The utility model discloses an automatic printing platform replacing device suitable for a 3D printer, which belongs to the technical field of 3D printers and comprises a 3D printer body, a movable block, a platform bracket, a platform drag hook, an ascending stop block, a stay wire block, a stay wire and a printing platform. The 3D printer body is composed of a portal frame, an X-axis linear guide rail, a Y-axis moving platform, a construction platform, a Z-axis linear guide rail and a printing head, the movable block is installed on the side wall of the construction platform, the platform bracket is installed on the side wall of the construction platform, the platform drag hook is installed on the side wall of the Y-axis moving platform, the ascending check block is installed on the side wall of the X-axis linear guide rail, and the lifting check block is installed on the side wall of the Z-axis linear guide rail. The stay wire block is installed on the top of the portal frame and corresponds to the ascending check block in position, the stay wire is connected between the stay wire block and the movable block in a transmission mode, and the printing platforms are arranged on the tops of the Y-axis moving platform and the platform bracket respectively. The problem that a traditional 3D printer depends on manual platform replacement is solved, and the printing efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer technical field, concretely relates to a device of automatic replacement printing platform suitable for 3D printer. BACKGROUND

[0002] 3D printer is also called three-dimensional printer, is a kind of technology that is manufactured entity parts according to three-dimensional data through layer-by-layer material accumulation, i.e. a kind of machine of rapid prototyping technology, it is based on digital model file, uses special wax material, powder-like metal or plastics etc. Adhesive material is printed layer by layer to manufacture three-dimensional object. 3D printer is widely used in industrial design, architectural design, engineering design and construction, automobile design and manufacturing, etc. Design and manufacturing field, and aerospace, dental etc. Medical field has been applied.

[0003] However, the 3D printer on the market currently usually needs manual removal of the printed model and replacement of the printing platform after completing a printing task, so as to carry out the next round of printing, and this operation mode is not only inefficient and cumbersome, but also has strong artificial dependence, and cannot realize unattended automatic production.

[0004] Therefore, how to provide a device of automatic replacement printing platform suitable for 3D printer to solve the defects existing in the prior art is a technical problem to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a device of automatic replacement printing platform suitable for 3D printer to solve the problems of low efficiency, cumbersome operation, strong artificial dependence and unattainable unattended automatic production caused by manual removal of the printed model and replacement of the printing platform in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model discloses a device of automatic replacement printing platform suitable for 3D printer, which comprises:

[0008] 3D printer body, by portal frame, X axis linear guide rail, Y axis moving platform, build platform, Z axis linear guide rail and printing head are formed;

[0009] Movable block, install on the lateral wall of build platform;

[0010] Platform bracket, install on the lateral wall of build platform;

[0011] Platform drag hook, install on the lateral wall of Y axis moving platform;

[0012] an ascending block mounted on the side wall of the X-axis linear guide rail;

[0013] a pull wire block mounted on the top of the gantry and corresponding to the position of the ascending block;

[0014] a pull wire drivingly connected between the pull wire block and the movable block;

[0015] a plurality of printing platforms respectively arranged on the top of the Y-axis moving platform and the platform bracket.

[0016] Further, the movable block comprises:

[0017] a mounting seat mounted on the side wall of the build platform;

[0018] a movable hook rotatably connected to the side wall of the mounting seat;

[0019] a sliding groove formed in the side wall of the mounting seat and arranged on the lower side of the movable hook;

[0020] a sliding block slidingly connected in the sliding groove, the pull wire being connected to the sliding block through the mounting seat;

[0021] a sliding pin mounted on the side wall of the sliding block, the sliding pin extending to the outside of the sliding groove.

[0022] Further, the platform bracket comprises:

[0023] a connecting portion mounted on the side wall of the build platform;

[0024] a supporting portion mounted on the side wall of the connecting portion and arranged on the upper side of the build platform, the supporting portion being used for placing part of the printing platforms;

[0025] a limiting portion mounted between the connecting portion and the supporting portion.

[0026] Further, the platform hook comprises:

[0027] a base mounted on the bottom of the Y-axis moving platform;

[0028] a hook body rotatably connected to the side wall of the base, the hook body having a depressor integrally formed on the outer wall thereof;

[0029] a pair of first magnets respectively embedded on the opposite two outer side walls of the base;

[0030] a pair of second magnets respectively embedded on the opposite two inner side walls of the hook body, the second magnets corresponding to the positions of the first magnets, the second magnets and the first magnets being attracted to each other.

[0031] Further, the pull wire block comprises:

[0032] A hanger is installed on the top of the gantry, and a slide is formed in the interior of the hanger;

[0033] A push block is slidingly connected in the interior of the slide, and the pull wire is connected with the push block through the hanger.

[0034] Further, the printing platform comprises a metal build plate and a drag hook, and the drag hook is fixedly connected to the edge of the metal build plate.

[0035] Further, the movable block and the platform bracket are oppositely arranged on both sides of the build platform along the Y-axis direction.

[0036] Further, a stop piece is integrally formed on the inner side wall of the supporting part.

[0037] The utility model has the advantages of:

[0038] The utility model discloses a printing platform automatic grabbing, releasing and replacing device, which is realized through the setting of a pull wire, a movable block, a platform drag hook, a rising stop block and a pull wire block, and does not need manual disassembly or installation, thereby improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.

[0040] The structures, proportions, sizes and the like shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions of the implementation of the utility model, so they do not have technical significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the utility model, should still fall within the scope of the disclosed technical content.

[0041] Figure 1 The device for automatically replacing a printing platform suitable for a 3D printer provided by the utility model is shown in the figure;

[0042] Figure 2 The movable block is shown in the figure;

[0043] Figure 3 The platform bracket is shown in the figure;

[0044] Figure 4 The platform bracket is shown in the figure;

[0045] Figure 5 The Figure 4 The structure at A in the middle is shown in the figure;

[0046] Figure 6 The platform pull hook is shown in the figure;

[0047] Figure 7 The base is shown in the figure;

[0048] Figure 8 The hook body is shown in the figure;

[0049] Figure 9 The platform pull hook is shown in the figure;

[0050] Figure 10 The pull wire block is shown in the figure;

[0051] Figure 11 The printing platform is shown in the figure;

[0052] Figure 12 The drag hook is shown in the figure.

[0053] In the figure: 11 gantry; 12 X-axis linear guide rail; 13 Y-axis moving platform; 14 building platform; 16 Z-axis linear guide rail; 17 printing head; 2 movable block; 21 mounting seat; 22 movable pull hook; 23 sliding groove; 24 sliding block; 25 sliding pin; 3 platform bracket; 31 connecting part; 32 supporting part; 321 stop piece; 33 limiting part; 4 platform pull hook; 41 base; 42 hook body; 43 pressing block; 44 first magnet; 45 second magnet; 5 upward stop block; 6 pull wire block; 61 hanging rack; 62 slide; 63 push block; 7 pull wire; 8 printing platform; 81 metal building plate; 82 drag hook. DETAILED DESCRIPTION

[0054] The following embodiments of the present application are described by way of specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the specification. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0055] Please refer to Figures 1-12 The device for automatically replacing a printing platform applicable to a 3D printer disclosed in the present application comprises eight parts, as shown in Figure 1As shown, including 3D printer body, movable block 2, platform bracket 3, platform pull hook 4, lifting stop block 5, pull line block 6, pull line 7 and printing platform 8, the 3D printer body is composed of gantry 11, X-axis linear guide rail 12, Y-axis moving platform 13, build platform 14, Z-axis linear guide rail 16 and printing head 17, the movable block 2 is installed on the side wall of the build platform 14, the platform bracket 3 is installed on the side wall of the build platform 14, the platform pull hook 4 is installed on the side wall of the Y-axis moving platform 13, the lifting stop block 5 is installed on the side wall of the X-axis linear guide rail 12, the pull line block 6 is installed on the top of the gantry 11 and corresponds to the position of the lifting stop block 5, the pull line 7 is drivingly connected between the pull line block 6 and the movable block 2, and the printing platform 8 is arranged on the top of the Y-axis moving platform 13 and the platform bracket 3 respectively; the movable block 2 and the platform bracket 3 are relatively arranged on the two sides of the build platform 14 along the Y-axis direction. In this embodiment, the 3D printer body includes six components, namely the gantry 11, the X-axis linear guide rail 12, the Y-axis moving platform 13, the build platform 14, the Z-axis linear guide rail 16 and the printing head 17, the bottom of the gantry 11 is fixedly connected with the build platform 14, the top of the build platform 14 is slidingly connected with the Y-axis moving platform 13, the side wall of the gantry 11 is provided with the Z-axis linear guide rail 16, the X-axis linear guide rail 12 is slidingly connected to the side wall of the gantry 11 through the Z-axis linear guide rail 16, and the middle part of the X-axis linear guide rail 12 is provided with the printing head 17. The movable block 2, the platform bracket 3, the platform pull hook 4, the lifting stop block 5, the pull line block 6 and the pull line 7 are all arranged around the 3D printer body, so they can be installed on various 3D printers. Compared with the multi-platform rotating switching mechanism, the utility model has smaller floor area, higher adaptability, adopts modular mechanical structure, is easy to install and maintain, and reduces the failure rate. One end of the pull line 7 is connected with the pull line block 6, and the other end of the pull line 7 is connected with the movable block 2. The lifting stop block 5 is used for pulling the pull line 7 in cooperation with the pull line block 6, and then pulling the movable block 2; when the X-axis linear guide rail 12 rises or falls, the lifting stop block 5 moves up and down with the X-axis linear guide rail 12. Through the linkage of the pull line 7, the movable block 2, the platform pull hook 4, the lifting stop block 5 and the pull line block 6 and other mechanical structures, the automatic grabbing, releasing and replacing of the printing platform 8 are realized, manual disassembly or installation is not needed, and the production efficiency is improved. It is suitable for continuous printing and batch production scenes, can realize unattended operation, and reduces labor cost.

[0056] When the printing platform 8 needs to be replaced, first, the rising block 5 moves up to contact the pull line block 6, the pull line block 6 pulls the pull line 7 connected with the movable block 2, so that the movable block 2 is lifted; second, the printing platform 8 on the top of the Y-axis moving platform 13 moves forward to be clamped by the movable block 2; third, the Y-axis moving platform 13 moves backward again, at this time, the printing platform 8 on the top of the Y-axis moving platform 13 is pulled down by the movable block 2, and at the same time, the printing platform 8 on the top of the Y-axis moving platform 13 is pulled by the platform pull hook 4 during the backward movement of the Y-axis moving platform 13; finally, the platform pull hook 4 pulls the printing platform 8 to move forward and stably place the printing platform 8 on the 3D printer.

[0057] As shown in Figure 2 , the movable block 2 comprises a mounting seat 21, a movable pull hook 22, a sliding groove 23, a sliding block 24 and a sliding pin 25, the mounting seat 21 is installed on the side wall of the build platform 14, the movable pull hook 22 is rotatably connected to the side wall of the mounting seat 21, the sliding groove 23 is arranged on the side wall of the mounting seat 21 and is located at the lower side of the movable pull hook 22, the sliding block 24 is slidably connected to the inside of the sliding groove 23, the pull line 7 is connected to the sliding block 24 through the mounting seat 21, and the sliding pin 25 is installed on the side wall of the sliding block 24 and extends to the outside of the sliding groove 23. In this embodiment, the structures of the movable pull hook 22 and the mounting seat 21 are as shown in Figure 2 , when the pull line 7 is pulled, the sliding block 24 moves along the sliding groove 23 to the direction close to the movable pull hook 22, and the movable pull hook 22 is lifted under the pushing of the sliding pin 25, and the lifted movable pull hook 22 can hook the printing platform 8.

[0058] As shown in Figure 3 , Figure 4 , the platform bracket 3 comprises a connecting part 31, a supporting part 32 and a limiting part 33, the connecting part 31 is installed on the side wall of the build platform 14, the supporting part 32 is installed on the side wall of the connecting part 31 and is arranged on the upper side of the build platform 14, the supporting part 32 is used for placing part of the printing platform 8, and the limiting part 33 is installed between the connecting part 31 and the supporting part 32. In this embodiment, the shapes of the connecting part 31, the supporting part 32 and the limiting part 33 are as shown in Figure 3 . Figure 4 The state of the printing platform 8 placed on the platform bracket 3 is that the platform bracket 3 places the printing platform 8 to be replaced. In use, the Y-axis moving platform 13 moves forward, the platform pull hook 4 pulls down the printing platform 8 on the top of the supporting part 32, the rear part of the printing platform 8 falls on the position of the limiting part 33, at this time, the Y-axis moving platform 13 moves backward, the printing platform 8 abuts against the limiting part 33 and keeps the position, and with the gradual movement of the Y-axis moving platform 13 to the lower side of the printing platform 8, the printing platform 8 falls on the Y-axis moving platform 13 as a whole.

[0059] As shown in Figure 6, Figure 7 , Figure 8 , Figure 9 As shown, the platform hook 4 includes a base 41, a hook body 42, a first magnet 44, and a second magnet 45. The base 41 is installed at the bottom of the Y-axis moving platform 13. The hook body 42 is rotatably connected to the side wall of the base 41. A pressing block 43 is integrally formed on the outer wall of the hook body 42. The first magnets 44 are arranged in pairs and are respectively embedded in two opposite outer side walls of the base 41. The second magnets 45 are arranged in pairs and are respectively embedded in two opposite inner side walls of the hook body 42. The positions of the second magnets 45 and the first magnets 44 correspond to each other, and the second magnets 45 and the first magnets 44 attract each other. In this embodiment, the positional relationship between the first magnet 44 and the second magnet 45 is as follows: Figure 7 , Figure 8 As shown, the first magnet 44 and the second magnet 45 are opposite magnetic poles and attract each other. The hook 42 and the pressing block 43 are shaped as follows: Figure 8 , Figure 9 As shown. Figure 9 As shown, when there is no printing platform 8 on the top of the Y-axis moving platform 13, the hook 42 is in the raised position. At this time, the height of the hook 42 is just enough to hook the replacement printing platform 8 on the top of the platform bracket 3. When the printing platform 8 presses down on the lower pressure block 43, the hook 42 will fall.

[0060] like Figure 10 As shown, the pull cable block 6 includes a bracket 61 and a push block 63. The bracket 61 is installed on the top of the gantry frame 11, and a slide rail 62 is provided inside the bracket 61. The push block 63 is slidably connected inside the slide rail 62, and the pull cable 7 passes through the bracket 61 and connects to the push block 63. In this embodiment, the shape of the bracket 61 is as follows: Figure 10 As shown, the push block 63 slides along the slide rail 62 in the bracket 61, and the rising stop 5 can abut against the lower side of the push block 63. When the X-axis linear guide rail 12 rises, the rising stop 5 will move upward with the X-axis linear guide rail 12. After moving a certain distance, it will touch the push block 63. Continuing to move upward will pull the pull line 7, and the other end of the pull line 7 will pull the sliding block 24, thereby driving the movable hook 22 to rise.

[0061] like Figure 11 , Figure 12 As shown, the printing platform 8 includes a metal frame plate 81 and a hook 82, which is fixedly connected to the edge of the metal frame plate 81. In this embodiment, the hook 82 is shaped as follows: Figure 12 As shown, both the movable hook 22 and the hook body 42 can cooperate with the tow hook 82. When the movable hook 22 and the hook body 42 are lifted, they hook the tow hook 82 and pull the printing platform 8.

[0062] like Figure 5As shown, the stopper 321 is integrally formed on the inner side wall of the supporting part 32. Figure 5 As shown, the stopper 321 has a gap with the supporting part 32 below, which can pass through a printing platform 8. This has the advantage that multiple replacement printing platforms 8 can be placed on the supporting part 32 at the same time; the user only needs to place multiple printing platforms 8 on the supporting part 32 in advance, and subsequent printing tasks can automatically switch without frequent intervention.

[0063] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model belong to the scope of protection required by the utility model.

Claims

1. A device for automatic replacement of a printing platform suitable for a 3D printer, characterized in that, The utility model relates to a 3D printer, including: 3D printer body, by gantry (11), X axis linear guide (12), Y axis moving platform (13), build platform (14), Z axis linear guide (16) and print head (17) are composed of; Movable block (2), install on the lateral wall of build platform (14); Platform bracket (3), install on the lateral wall of build platform (14); Platform pull hook (4), install on the lateral wall of Y axis moving platform (13); Rising stopper (5), install on the lateral wall of X axis linear guide (12); Pull line block (6), install on the top of gantry (11) and with the position of rising stopper (5) corresponding; Pull line (7), transmission connection between pull line block (6) and movable block (2); Several printing platforms (8) are arranged on the top of Y axis moving platform (13) and platform bracket (3) respectively.

2. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 1, characterized in that, The utility model relates to a 3D printer, including: Mounting seat (21), install on the lateral wall of build platform (14); Movable pull hook (22), rotatably connected on the lateral wall of mounting seat (21); Slide groove (23), open in the lateral wall of mounting seat (21) and set up on the downside of movable pull hook (22); Sliding block (24), slidingly connected in the inside of slide groove (23), and the pull line (7) passes through the mounting seat (21) and is connected with the sliding block (24); Sliding pin (25), install on the lateral wall of sliding block (24), and the sliding pin (25) extends to the outside of slide groove (23).

3. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 1, characterized in that, The utility model relates to a 3D printer, including: Connecting portion (31), install on the lateral wall of build platform (14); Supporting portion (32), install on the lateral wall of connecting portion (31) and set up on the upside of build platform (14), and the supporting portion (32) is used for placing part printing platform (8); Limiting portion (33), install between connecting portion (31) and supporting portion (32).

4. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 1, characterized in that, The utility model relates to a 3D printer, including: Base (41), install on the bottom of Y axis moving platform (13); Hook body (42), rotatably connected on the lateral wall of base (41), and the lower pressing block (43) is integrally formed on the outer wall of hook body (42); First magnet (44), set up in pairs, respectively embedded on the opposite two outer side walls of base (41); Second magnet (45), set up in pairs, respectively embedded on the opposite two inner side walls of hook body (42), and the second magnet (45) corresponds with the position of first magnet (44), and the second magnet (45) and first magnet (44) are attracted to each other.

5. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 1, characterized in that, The utility model relates to a 3D printer, including: Hanging frame (61), install on the top of gantry (11), and the slide (62) is set up in the inside of hanging frame (61); Push block (63), slidingly connected in the inside of slide (62), and the pull line (7) passes through the hanging frame (61) and is connected with push block (63).

6. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 1, characterized in that, The printing platform (8) comprises a metal build plate (81) and a drag hook (82) fixedly connected to the edge of the metal build plate (81).

7. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 1, characterized in that, The movable block (2) and the platform bracket (3) are oppositely arranged on the two sides of the build platform (14) along the Y-axis direction.

8. The device for automatic replacement of the printing platform suitable for 3D printers according to claim 3, characterized in that, The inner side wall of the supporting part (32) is integrally formed with a stop piece (321).

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