3D printing device

Abstract

The utility model discloses a 3D (three-dimensional) printing device, which belongs to the technical field of printing equipment and comprises a worktable, and a profiling mold, a screen component and a scraping component are arranged on the worktable. The screen assembly can reciprocate in the Z-axis direction; the printing surface of the screen printing plate assembly is opposite to the supporting surface of the profiling mold, and the printing surface of the screen printing plate assembly is matched with the surface of a material to be printed; during material scraping, the material scraping end of the material scraping assembly can reciprocate on the printing face of the screen printing plate assembly in the X-axis direction. By arranging the profiling mold and the screen printing plate assembly with the printing face matched with the surface of the material, the material in any shape can be stably fixed to the printing device. And during printing, the scraping assembly conducts reciprocating scraping in the X-axis direction along with fluctuating changes of the printing face of the screen assembly, the problem that an existing printing device cannot print 3D products can be solved, automatic printing can be achieved, and therefore the overall working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, and particularly relates to a 3D printing device. Background Art

[0002] Screen printing is recognized by more and more industries due to its advantages such as batch production, low price, bright colors, and fast delivery. It can be applied not only to clothing materials and shoe materials, but also to products such as ceramics, glass, packaging, and refrigerators.

[0003] However, it is found in the actual use process that the existing screen printing process can only meet the needs of flat printing; when the product to be printed is a 3D three-dimensional structure, there is often a problem that the printing tool and the product cannot be adapted, thus affecting the printing effect; at the same time, the existing printing process is generally manual printing. Since the action of scraping ink needs to be repeated many times during printing, in the long run, it is easy for workers to increase the risk of physical injury, and thus related occupational diseases such as frozen shoulder are generated. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: how to provide a 3D printing device that can be applied to 3D products on the basis of realizing automatic printing.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A 3D printing device includes a workbench, and a profiling mold, a screen plate assembly and a scraping assembly are arranged on the workbench;

[0007] The screen plate assembly can reciprocate along the Z-axis direction;

[0008] The printing surface of the screen plate assembly is oppositely arranged with the supporting surface of the profiling mold, and the printing surface of the screen plate assembly is adapted to the surface of the material to be printed;

[0009] During scraping, the scraping end of the scraping assembly can reciprocate along the X-axis direction on the printing surface of the screen plate assembly.

[0010] Furthermore, it further includes a support frame;

[0011] The screen plate assembly includes a lifting bracket, a curved screen plate and clamping jaws;

[0012] The lifting bracket is connected to the workbench through the support frame, and the lifting bracket can be slidably connected to the support frame along the Z-axis direction;

[0013] In the X-axis direction, clamping jaws are arranged at both ends of the curved screen plate, and the clamping jaws are slidably connected to the lifting bracket along the X-axis direction.

[0014] Further, the curved surface stencil includes a curved surface base plate and side baffles;

[0015] In the Y-axis direction, side baffles are provided at both ends of the curved surface base plate;

[0016] In the X-axis direction, clamping jaws are provided at both ends of the curved surface base plate.

[0017] Further, the scraping component includes a first transverse movement device, a lifting device, and a scraper;

[0018] The lifting device is connected to the support frame through the first transverse movement device;

[0019] The scraper is connected to the movable part of the lifting device;

[0020] The first transverse movement device can drive the lifting device to reciprocate along the X-axis direction;

[0021] The lifting device can drive the scraper to reciprocate along the Z-axis direction;

[0022] The scraper and the printing surface of the stencil component are arranged opposite to each other.

[0023] Further, the lifting device includes a telescopic rod;

[0024] The scraper is connected to at least two telescopic rods.

[0025] Further, the number of scrapers is at least two.

[0026] Further, the lifting device further includes a stabilizer;

[0027] The telescopic rods are connected to each other through the stabilizer.

[0028] Further, a placement table is further provided on the workbench;

[0029] A first rotation driving member is provided on the placement table;

[0030] The profiling mold is connected to the movable part of the first rotation driving member;

[0031] The first rotation driving member can drive the profiling mold to rotate about the Z-axis.

[0032] Further, a second rotation driving member is further provided on the placement table;

[0033] The first rotation driving member is connected to the placement table through the second rotation driving member;

[0034] The second rotation driving member can drive the first rotation driving member to rotate about the X-axis.

[0035] Furthermore, a second transverse movement device is also provided on the workbench;

[0036] The second rotation driving member is connected to the workbench through the second transverse movement device;

[0037] The second transverse movement device can drive the second rotation driving member to reciprocate along the X-axis direction.

[0038] The beneficial effects of the present utility model are as follows: The 3D printing device provided by the present utility model can stably fix materials of any shape on the printing device of the present utility model by setting a profiling mold and a screen plate assembly whose printing surface is adapted to the surface of the material; and during printing, the scraping assembly reciprocates to scrape materials along the X-axis direction following the undulation of the printing surface of the screen plate assembly, which can solve the problem that existing printing devices cannot print 3D products and can also achieve automatic printing, thereby improving the overall working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The figure shows a schematic structural diagram of the 3D printing device in the specific embodiment of the present utility model;

[0040] Figure 2 The figure shows an exploded view of the curved screen plate, printing piece and profiling mold in the specific embodiment of the present utility model;

[0041] Figure 3 The figure shows another exploded view of the curved screen plate, printing piece and profiling mold in the specific embodiment of the present utility model;

[0042] Reference Numeral Explanation:

[0043] 1. Workbench; 11. Support frame;

[0044] 2. Profiling mold;

[0045] 3. Screen plate assembly; 31. Lifting bracket; 32. Curved screen plate; 321. Curved bottom plate; 322. Side baffle; 33. Claw;

[0046] 4. Scraping assembly; 41. Lifting device; 411. Telescopic rod; 412. Stabilizer; 42. Scraper;

[0047] 5. Placing table; 51. First rotation driving member; 52. Second rotation driving member;

[0048] 6. Second transverse movement device;

[0049] 7. Printing piece. SPECIFIC EMBODIMENTS

[0050] In order to explain in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the accompanying drawings.

[0051] The most crucial concept of the present utility model lies in: by setting a profiling mold and a screen printing assembly with a printing surface adapted to the surface of the material, any shaped material can be stably fixed; and during printing, the scraping assembly reciprocates along the X-axis direction following the undulation of the printing surface of the screen printing assembly, which can solve the problems that the existing printing devices cannot print 3D products and cannot achieve automatic printing.

[0052] Please refer to Figures 1 to 3 , the 3D printing device provided by the present utility model includes a workbench 1, and a profiling mold 2, a screen printing assembly 3 and a scraping assembly 4 are arranged on the workbench 1;

[0053] The screen printing assembly 3 can reciprocate along the Z-axis direction;

[0054] The printing surface of the screen printing assembly 3 is arranged opposite to the supporting surface of the profiling mold 2, and the printing surface of the screen printing assembly 3 is adapted to the surface of the material to be printed;

[0055] During scraping, the scraping end of the scraping assembly 4 can reciprocate along the X-axis direction on the printing surface of the screen printing assembly 3.

[0056] As can be seen from the above description, the beneficial effects of the present utility model are as follows: a 3D printing device is provided. By setting a profiling mold 2 and a screen printing assembly 3 with a printing surface adapted to the surface of the material, any shaped material can be stably fixed; compared with the existing printing devices, it can not only easily achieve planar printing, but also during printing, since the scraping assembly 4 can reciprocate along the X-axis direction following the undulation of the printing surface of the screen printing assembly 3, it can not only solve the problem that the existing printing devices cannot print 3D products, but also achieve automatic printing, thereby effectively improving the overall printing efficiency.

[0057] Furthermore, the above-mentioned 3D printing device further includes a support frame 11;

[0058] The screen printing assembly 3 includes a lifting support 31, a curved surface screen 32 and clamping jaws 33;

[0059] The lifting support 31 is connected to the workbench 1 through the support frame 11, and the lifting support 31 is slidably connected to the support frame 11 along the Z-axis direction;

[0060] In the X-axis direction, clamping jaws 33 are arranged at both ends of the curved surface screen 32, and the clamping jaws 33 are slidably connected to the lifting support 31 along the X-axis direction.

[0061] As described above, this design has specifically modified the composition structures of the 3D printing device of the present utility model and the screen plate assembly 3, providing structural support for the device to freely adjust the printing position of the curved surface screen plate 32 according to the size of the material to be printed, so as to ensure that the curved surface screen plate 32 can be adapted to the surface of the material to be printed, and further improve the subsequent printing quality.

[0062] Further, the curved surface screen plate 32 includes a curved surface bottom plate 321 and side baffles 322;

[0063] In the Y-axis direction, side baffles 322 are provided at both ends of the curved surface bottom plate 321;

[0064] In the X-axis direction, clamping jaws 33 are provided at both ends of the curved surface bottom plate 321.

[0065] Further, the scraping component 4 includes a first transverse movement device, a lifting device 41 and a scraper 42;

[0066] The lifting device 41 is connected to the support frame 11 through the first transverse movement device;

[0067] The scraper 42 is connected to the movable part of the lifting device 41;

[0068] The first transverse movement device can drive the lifting device 41 to reciprocate along the X-axis direction;

[0069] The lifting device 41 can drive the scraper 42 to reciprocate along the Z-axis direction;

[0070] The scraper 42 and the printing surface of the screen plate assembly 3 are arranged opposite to each other.

[0071] Specifically, in the actual printing process, because there are various types of inks, different scrapers 42 are also used according to different inks; and in order to achieve quick replacement of the scraper 42, the scraper 42 also needs to be matched with a groove handle, that is, when in use, the scraper 42 is directly embedded in the groove handle; the existing groove handles are usually made of wood, and some have adopted aluminum; the blade part of the scraper 42 is generally rubber skin or polyurethane rubber, and when the rubber skin blade is fitted with the groove handle, it is necessary to ensure that the two have a good degree of fit. If the degree of fit between the two is poor, different colors of ink will get into the gap between the blade and the groove handle, resulting in the ink drying and caking between the blade and the groove handle, thus affecting the color of the printing ink; at the same time, the sharpness of the blade also determines the uniformity and deposition thickness of the ink.

[0072] As described above, the design has made specific modifications to the composition structure of the scraping component 4. Through the cooperation between the first transverse movement device and the lifting device 41, structural support can be provided for the blade 42 to move freely in the X-axis or Z-axis directions, so that during printing, it can be ensured that the blade 42 is always in contact with the printing surface of the screen component 3, thereby improving the overall printing quality.

[0073] Further, the lifting device 41 includes a telescopic rod 411;

[0074] The blade 42 is connected to at least two telescopic rods 411.

[0075] Further, the number of blades 42 is at least two.

[0076] Further, the lifting device 41 further includes a stabilizer 412;

[0077] The telescopic rods 411 are connected to each other through the stabilizer 412.

[0078] As described above, the design has further optimized the composition structure of the scraping component 4. By providing at least two blades 42, the overall printing efficiency can be effectively improved, and it is ensured that each blade 42 is connected to at least two telescopic rods 411, and all telescopic rods 411 are connected through the stabilizer 412, which can effectively improve the stability of the blade 42 during scraping and prevent the blade 42 from affecting the subsequent printing quality due to violent shaking.

[0079] Further, a placement table 5 is further provided on the workbench 1;

[0080] A first rotary drive member 51 is provided on the placement table 5;

[0081] The profiling die 2 is connected to the movable part of the first rotary drive member 51;

[0082] The first rotary drive member 51 can drive the profiling die 2 to rotate about the Z-axis.

[0083] Further, a second rotary drive member 52 is further provided on the placement table 5;

[0084] The first rotary drive member 51 is connected to the placement table 5 through the second rotary drive member 52;

[0085] The second rotary drive member 52 can drive the first rotary drive member 51 to rotate about the X-axis.

[0086] Further, a second transverse movement device 6 is further provided on the workbench 1;

[0087] The second rotary drive member 52 is connected to the workbench 1 through the second transverse movement device 6;

[0088] The second transverse movement device 6 can drive the second rotary drive member 52 to reciprocate in the X-axis direction.

[0089] As can be seen from the above description, through the cooperation between the first rotary drive member 51, the second rotary drive member 52 and the second transverse movement device 6, the degree of freedom of the profiling die 2 can be effectively improved, thereby providing structural support for the printing equipment of the present utility model to move the material on the profiling die 2 to the optimal printing position.

[0090] The 3D printing device of the present utility model can assist the surface printing work of flat structures or three-dimensional structures.

[0091] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is:

[0092] A 3D printing device, including a workbench 1 and a support frame 11. A profiling die 2, a screen plate assembly 3, a scraping assembly 4, a placement table 5 and a second transverse movement device 6 are provided on the workbench 1; the screen plate assembly 3 can reciprocate in the Z-axis direction; the printing surface of the screen plate assembly 3 is disposed opposite to the support surface of the profiling die 2, and the printing surface of the screen plate assembly 3 is adapted to the surface of the material to be printed; when scraping, the scraping end of the scraping assembly 4 can reciprocate in the X-axis direction on the printing surface of the screen plate assembly 3.

[0093] The screen plate assembly 3 includes a lifting bracket 31, a curved screen plate 32 and clamping jaws 33; the lifting bracket 31 is connected to the workbench 1 through the support frame 11, and the lifting bracket 31 is slidably connected to the support frame 11 in the Z-axis direction; in the X-axis direction, clamping jaws 33 are provided at both ends of the curved screen plate 32, and the clamping jaws 33 are slidably connected to the lifting bracket 31 in the X-axis direction; the curved screen plate 32 includes a curved bottom plate 321 and side baffles 322; in the Y-axis direction, side baffles 322 are provided at both ends of the curved bottom plate 321; in the X-axis direction, clamping jaws 33 are provided at both ends of the curved bottom plate 321.

[0094] The scraping assembly 4 includes a first transverse movement device, a lifting device 41 and two scraping blades 42; the lifting device 41 is connected to the support frame 11 through the first transverse movement device; the scraping blade 42 is connected to the movable part of the lifting device 41; the first transverse movement device can drive the lifting device 41 to reciprocate in the X-axis direction; the lifting device 41 can drive the scraping blade 42 to reciprocate in the Z-axis direction; the scraping blade 42 is disposed opposite to the printing surface of the screen plate assembly 3; the lifting device 41 includes a telescopic rod 411 and a stabilizer 412; the scraping blade 42 is connected to two telescopic rods 411; the telescopic rods 411 are connected to each other through the stabilizer 412.

[0095] A first rotation driving member 51 and a second rotation driving member 52 are provided on the placement table 5; the profiling mold 2 is connected to the movable part of the first rotation driving member 51; the first rotation driving member 51 can drive the profiling mold 2 to rotate with the Z axis as the axis; the first rotation driving member 51 is connected to the placement table 5 through the second rotation driving member 52; the second rotation driving member 52 can drive the first rotation driving member 51 to rotate with the X axis as the axis; the second rotation driving member 52 is connected to the workbench 1 through the second transverse movement device 6; the second transverse movement device 6 can drive the second rotation driving member 52 to reciprocate in the X-axis direction.

[0096] The working principle of the present utility model is as follows: First, select a profiling mold 2 and a curved surface screen plate 32 that are adapted to the outer surface of the material according to the shape of the material to be printed; then, place the material to be printed on the profiling mold 2 and adjust the height of the lifting bracket 31 until the curved surface bottom plate 321 completely abuts against the outer surface of the material to be printed; then, add the corresponding ink to the side of the curved surface bottom plate 321 facing away from the material, and through the cooperation between the lifting device 41 and the first transverse movement device, move the squeegee 42 to the starting position of scraping the material; finally, the combined movement between the lifting device 41 and the first transverse movement device drives the squeegee 42 to reciprocate in the X-axis direction along the undulating state of the curved surface bottom plate 321 until the printing work is completed.

[0097] In summary, a 3D printing device provided by the present utility model can stably fix materials of any shape by setting a profiling mold and a screen plate assembly whose printing surface is adapted to the surface of the material; compared with the existing printing devices, it can not only easily achieve planar printing, but also, during printing, since the scraping component can reciprocally scrape the material in the X-axis direction following the undulation of the printing surface of the screen plate assembly, it can not only solve the problem that the existing printing devices cannot print 3D products, but also achieve automatic printing, thereby effectively improving the overall printing efficiency; and through the cooperation between the first transverse movement device and the lifting device, it can provide structural support for the squeegee to freely move in the X-axis or Z-axis direction, so that during printing, it can ensure that the squeegee can always be in contact with the printing surface of the screen plate assembly, thereby improving the overall printing quality.

[0098] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A 3D printing device, comprising a workbench, characterized in that: The workbench is provided with a profiling mold, a screen assembly and a scraper assembly; The screen assembly can reciprocate along the Z-axis direction; The printing surface of the screen assembly is arranged opposite to the supporting surface of the imitation mold, and the printing surface of the screen assembly is matched to the surface of the material to be printed; When scraping, the scraping end of the scraping assembly can reciprocate on the printing surface of the screen assembly along the X-axis direction.

2. The 3D printing device according to claim 1, characterized in that: Also includes a support frame; The screen assembly includes a lifting bracket, a curved screen and a clamping claw; The lifting bracket is connected to the workbench through the support frame, and the lifting bracket can be slidably connected to the support frame along the Z-axis direction; In the X-axis direction, clamping claws are provided at both ends of the curved screen, and the clamping claws are slidably connected to the lifting bracket along the X-axis direction.

3. The 3D printing device according to claim 2, characterized in that: The curved screen includes a curved bottom plate and side guards; In the Y-axis direction, both ends of the curved bottom plate are provided with side stops; In the X-axis direction, clamping claws are provided at both ends of the curved bottom plate.

4. The 3D printing device according to claim 2, characterized in that: The scraper assembly includes a first traverse device, a lifting device and a scraper; The lifting device is connected to the support frame via a first transverse moving device; The scraper is connected to the movable part of the lifting device; The first transverse moving device can drive the lifting device to move back and forth along the X-axis direction; The lifting device can drive the scraper to move back and forth along the Z-axis direction; The scraper and the printing surface of the screen assembly are arranged opposite to each other.

5. The 3D printing device according to claim 4, characterized in that: The lifting device comprises a telescopic rod; The scraper is connected with at least two telescopic rods.

6. The 3D printing device according to claim 5, characterized in that: The number of the scrapers is at least two.

7. The 3D printing device according to claim 6, characterized in that: The lifting device also includes a stabilizer; The telescopic rods are connected via stabilizers.

8. The 3D printing device according to claim 1, characterized in that: The workbench is also provided with a placement table; The placement table is provided with a first rotating driving member; The profiling die is connected to the movable part of the first rotary drive member; The first rotary drive member can drive the profiling mold to rotate about the Z axis.

9. The 3D printing device according to claim 8, characterized in that: The placement table is also provided with a second rotating driving member; The first rotary drive member is connected to the placement table through the second rotary drive member; The second rotation driving member can drive the first rotation driving member to rotate about the X-axis.

10. The 3D printing device according to claim 9, characterized in that: The workbench is also provided with a second transverse movement device; The second rotary drive member is connected to the workbench via a second transverse movement device; The second transverse moving device can drive the second rotary driving member to move back and forth along the X-axis direction.

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