A 3D printer with adjustable lifting platform height

Abstract

The present invention discloses a 3D printer with adjustable lifting platform height, including a base, a platform, a universal movable frame and a printing device, wherein the platform is arranged above the base, and the base is provided with a conveyor belt passing through the platform, and the conveyor belt is slidably connected with arranged and distributed support columns, and the top of the support column is fixedly connected with a printing platform, and a truss is provided on the universal movable frame, and the truss is slidably connected with the base and is located above the conveyor belt, and the base is rotatably connected with a coaxial wind sleeve located at both ends of the platform, and the conveyor belt passes through the inner cavity of the wind sleeve, and one end of the wind sleeve is provided with an elliptical guide groove. In the present invention, by arranging the conveyor belt, the envelope, the platform, the semiconductor cooling sheet and the conical filter cover, the printer has the advantages of assembly line operation, cold hardening, heat hardening, and cleaning of printed adhesions.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to a 3D printer with an adjustable lifting platform height. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a rapid prototyping process that uses layer-by-layer stacking to create a three-dimensional model. Its operation process is similar to that of a traditional printer, except that traditional printers print ink onto paper to form a two-dimensional flat drawing, while a three-dimensional printer stacks liquid photosensitive resin materials, molten plastic filaments, gypsum powder and other materials layer by layer through spraying adhesives or extrusion to form a three-dimensional entity.

[0003] Then, the current 3D printers still have the following shortcomings: 1. There is a defect of inconvenient material unloading after 3D product printing. Simply put, the product needs to be removed after printing before the next product can be printed, and there is a problem of low printing switching efficiency; 2. Product printing lacks the function of accelerating product hardening, that is, the printing material is usually slurry, and there is high humidity or high temperature after printing. If no hardening treatment is performed, the molding efficiency will be reduced, and the printed products are prone to deformation, affecting the printing accuracy; 3. During the printing and unloading process of the printing equipment and the hardening process of the 3D product, debris and sundries will accumulate on the product and the printing table. Such debris and debris are difficult to clean, which will pollute the printing table and 3D products.

[0004] To this end, the present invention provides a 3D printer with an adjustable lifting platform height. Summary of the invention

[0005] The purpose of the present invention is to solve the problem mentioned in the background technology and to propose a 3D printer with an adjustable lifting platform height.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A 3D printer with adjustable lifting platform height comprises a base, a platform, a universal movable frame and a printing device, wherein the platform is arranged above the base, and a conveyor belt passing through the platform is arranged on the base, and the conveyor belt is slidably connected with arranged support columns, and the top of the support column is fixedly connected with the printing platform, and a truss is arranged on the universal movable frame, and the truss and the base are slidably connected up and down and are located above the conveyor belt, and the base is rotatably connected with a coaxial wind sleeve located at both ends of the platform, and the conveyor belt passes through the inner cavity of the wind sleeve, and one end of the wind sleeve is provided with an elliptical guide groove, and both ends of the truss and the platform are provided with rollers that roll with the elliptical guide groove, and a driving shaft is arranged on the base below the wind sleeve, and one end of the driving shaft is fixedly connected with a gear meshing with the outer peripheral wall of the wind sleeve.

[0008] As a further description of the above technical solution:

[0009] Four guide columns are fixedly connected to the base, the seat is rectangular and has guide holes close to the corners and slidably connected to the guide columns, and both ends of the truss are fixedly connected to limit plates slidably connected to the guide columns.

[0010] As a further description of the above technical solution:

[0011] A vertical plate is fixedly connected to the base, the vertical plate is rotatably connected to the driving shaft, and a support ring sleeved outside the wind sleeve is fixedly connected to the top of the vertical plate, and the support ring is rotatably connected to the wind sleeve.

[0012] As a further description of the above technical solution:

[0013] The outer peripheral wall of the air sleeve is provided with two circumferentially symmetrical hot air nozzles and cold air nozzles.

[0014] As a further description of the above technical solution:

[0015] Fans are arranged inside the hot air nozzle and the cold air nozzle, a curved pipe connecting the hot air nozzle and the cold air nozzle is arranged on the outer wall of the air sleeve, and a semiconductor refrigeration sheet is arranged in the middle of the curved pipe.

[0016] As a further description of the above technical solution:

[0017] The hot air nozzle and the cold air nozzle are both provided with a conical filter cover, the conical filter cover is arranged close to the inner cavity of the air sleeve and the two are clearance-matched, and the fan is arranged in the conical filter cover.

[0018] As a further description of the above technical solution:

[0019] The bottom of the support column is fixedly connected with a seat plate, and the bottom of the seat plate is bonded with a resistance-increasing rubber pad.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. In the present invention, a conveyor belt is provided, and then a printing table that slides up and down is provided on the conveyor belt. The conveyor belt passes under the printing device. This arrangement enables the printer to have an assembly line printing function, which greatly improves the efficiency of loading and unloading materials in 3D printing.

[0022] 2. In the present invention, by providing an elliptical guide groove, the space between the base and the printing device can be adjusted, which is suitable for printing 3D products of different sizes.

[0023] 3. In the present invention, by providing an air sleeve, a hot air nozzle and a cold air nozzle are provided on the air sleeve, so that the 3D printed product has the functions of heat hardening and cold hardening, which greatly improves the convenience and quickness of the hardening treatment of the 3D printed product.

[0024] 4. In the present invention, by providing a fan and a conical filter cover, the air cover has the function of cleaning dust on the 3D product, improving the cleanliness of the 3D product after printing and hardening, and also has the advantage of making it more convenient to clean the adhesion on the printing table. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a 3D printer with adjustable lifting platform height proposed by the present invention;

[0026] Figure 2 for Figure 1 The main view;

[0027] Figure 3 for Figure 2 A schematic diagram of the enlarged part "b" in the middle;

[0028] Figure 4 This is a schematic diagram of the structure of the air jacket and the conical filter cover of the 3D printer with adjustable lifting platform proposed by the present invention after explosion and expansion;

[0029] Figure 5 for Figure 1 The enlarged schematic diagram of the part "a" in the middle;

[0030] Figure 6 A plan view of the cooperation between the semiconductor cooling plate and the bent pipe of a 3D printer with adjustable lifting platform height proposed by the present invention.

[0031] Legend:

[0032] 1. Base; 11. Guide column; 12. Vertical plate; 121. Support ring; 2. Base; 21. Guide hole; 3. Universal movable frame; 31. Truss; 311. Limit plate; 4. Printing equipment; 5. Conveyor belt; 6. Air sleeve; 61. Hot air nozzle; 62. Cold air nozzle; 63. Bend pipe; 7. Elliptical guide groove; 8. Roller; 9. Drive shaft; 101. Gear; 102. Fan; 103. Semiconductor cooling plate; 104. Conical filter cover; 105. Support column; 1051. Base plate; 10511. Resistance-increasing rubber pad; 106. Printing table. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1-6 A 3D printer with adjustable lifting platform height includes a base 1, a base 2, a universal movable frame 3 and a printing device 4. The base 2 is arranged above the base 1 and acts as a lifting platform. Four guide columns 11 are fixedly connected to the base 1. The base 2 is rectangular and has guide holes 21 close to the corners and slidably connected to the guide columns 11. The universal movable frame 3 drives the printing device 4 to move up and down and left and right, that is, to provide a printing track for the printing device 4. The printing device 4 discharges slurry and other materials that are easy to stack.

[0036] A conveyor belt 5 passing through the seat 2 is arranged on the base 1. The conveyor belt 5 is supported and driven to rotate by rollers at both ends. The conveyor belt 5 is slidably connected to the arranged support columns 105, wherein the bottom of the support column 105 is fixedly connected to the seat plate 1051, and the bottom of the seat plate 1051 is bonded with a resistance-increasing rubber pad 10511, and the function of the resistance-increasing rubber pad 10511 is to increase the frictional force in contact with the seat 2. The top of the support column 105 is fixedly connected to the printing table 106, and a pad for supporting 3D products can be placed on the printing table 106. The printing device 4 prints products on the pad. When the conveyor belt 5 is running, it can transmit the printed products outward, and at the same time transport the empty pad to the bottom of the printing device 4, which has the advantages of continuous printing and convenient material unloading.

[0037] The universal movable frame 3 is provided with a truss 31, which is connected to the base 1 in an up-and-down sliding manner and is located above the conveyor belt 5. Specifically, the two ends of the truss 31 are fixedly connected with a limit plate 311 that is slidably connected to the guide column 11. The base 1 is rotatably connected with a coaxial wind sleeve 6 located at both ends of the seat 2. Specifically, the base 1 is fixedly connected with a vertical plate 12, and the top of the vertical plate 12 is fixedly connected with a support ring 121 that is sleeved on the outside of the wind sleeve 6, and the support ring 121 is rotatably connected to the wind sleeve 6. The conveyor belt 5 passes through the inner cavity of the wind sleeve 6, and the wind sleeve 6 plays a role in accelerating the hardening of the printed product. The hardening is divided into drying hardening and refrigeration hardening. Different hardening methods are selected according to different printing materials.

[0038] An elliptical guide groove 7 is provided at one end of the air sleeve 6, and rollers 8 that roll with the elliptical guide groove 7 are provided at both ends of the truss 31 and the base 2. Specifically, support shafts are provided at both ends of the truss 31 and the base 2, and the support shafts and rollers 8 are rotatably connected. A driving shaft 9 located below the air sleeve 6 is provided on the base 1, and the driving shaft 9 is rotatably connected to the vertical plate 12. A control motor can be installed on the vertical plate 12, and the output shaft of the control motor is fixedly connected to one end of the driving shaft 9. One end of the driving shaft 9 is fixedly connected to a gear 101 that meshes with the outer peripheral wall of the air sleeve 6. Specifically, a gear ring that meshes with the gear 101 is provided on the outer fixed sleeve of the air sleeve 6. By controlling the rotation of the driving shaft 9, the air sleeve 6 can be driven to rotate. When the air sleeve 6 rotates, it can drive the base 2 and the truss 31 to move synchronously in opposite and reverse directions. When moving in opposite directions, the distance between the printing device 4 and the base 2 is shortened, which is suitable for printing 3D products of different sizes. Moreover, when the air sleeve 6 rotates, the hardening method of the 3D product can be switched.

[0039] Specifically, the outer wall of the air jacket 6 is provided with two symmetrical hot air nozzles 61 and cold air nozzles 62. When the hot air nozzle 61 is located at the top, the hot air ejected downwards serves to dry the 3D product; when the cold air nozzle 62 is located at the top, the cold air ejected downwards serves to cool the 3D product. Furthermore, fans 102 are provided in both the hot air nozzle 61 and the cold air nozzle 62. The outer wall of the air jacket 6 is provided with a curved pipe 63 connecting the hot air nozzle 61 and the cold air nozzle 62. A semiconductor cooling sheet 103 is provided in the middle of the curved pipe 63. The semiconductor cooling sheet 103 has the function of cooling on one side and heating on the other side. This heating and cooling structure has the advantage of convenient switching of hardening modes, and no preheating and cooling are required.

[0040] Example 2

[0041] See also Figure 2 and Figure 4, and the difference from Example 1 is that a conical filter cover 104 is provided in both the hot air nozzle 61 and the cold air nozzle 62. The conical filter cover 104 is provided near the inner cavity of the air sleeve 6 and the two are clearance-matched. The fan 102 is provided in the conical filter cover 104. The conical filter cover 104 plays a role in protecting the fan 102. At the same time, the air sleeve 6 has the function of cleaning dust. For example, when the hot air nozzle 61 is located at the top and sprays downward, the fan 102 in the cold air nozzle 62 at the bottom is controlled to flip and draw air outward. This setting has the function of gathering and discharging dust on the printing table 106 and the 3D product outward, and has the advantages of cleaning, discharging and reducing pollution. It should be noted that by blowing cold air and hot air to the printing table 106 in turn, the sticky matter on the printing table 106 can be peeled off, which has the advantage of automatically cleaning hard objects adhering to the printing table 106.

[0042] Working principle: When in use, the conveyor belt 5 is controlled to run to drive one of the bases 2 to the bottom of the printing device 4, and then the driving shaft 9 is controlled to rotate to drive the air sleeve 6 to rotate. At this time, under the action of the elliptical guide groove 7, the base 2 and the truss 31 move in opposite directions, the base 2 moves upward and pushes the seat plate 1051. At this time, the support column 105 moves upward. At the same time, due to the lifting and limiting effect of the base 2, the printing table 106 is in a stable placement state. At the same time, the printing device 4 is close to the printing table 106, and then the universal movement of the printing device 4 is controlled by the universal moving frame 3 to realize 3D printing.

[0043] After the product is printed, taking the 3D printed product that needs to be cooled as an example, the driving shaft 9 is controlled to rotate to control the cold air nozzle 62 to be located at the top, the fan 102 and the semiconductor cooling sheet 103 are started, and the cold air nozzle 62 and the hot air nozzle 61 are controlled to spray downward. At this time, the cold air is sprayed from the top of the 3D product to accelerate the cooling and curing of the 3D product, and at the same time, the debris around the 3D product is discharged to achieve the cold hardening of the 3D. When the 3D product that needs to be dried and hardened is hardened, the air sleeve 6 is controlled to rotate 180 degrees.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A 3D printer with an adjustable lifting platform, comprising a base (1), a base (2), a universal movable frame (3) and a printing device (4), wherein the base (2) is arranged above the base (1), and is characterized in that: The base (1) is provided with a conveyor belt (5) passing through the seat platform (2), the conveyor belt (5) is slidably connected to arranged support columns (105), the top of the support columns (105) is fixedly connected to a printing table (106), the universal movable frame (3) is provided with a truss (31), the truss (31) and the base (1) are slidably connected up and down and are located above the conveyor belt (5), and the base (1) is rotatably connected to the two ends of the seat platform (2). The wind sleeve (6) is coaxial, the conveyor belt (5) passes through the inner cavity of the wind sleeve (6), one end of the wind sleeve (6) is provided with an elliptical guide groove (7), both ends of the truss (31) and the base (2) are provided with rollers (8) that roll with the elliptical guide groove (7), and the base (1) is provided with a driving shaft (9) located below the wind sleeve (6), one end of the driving shaft (9) is fixedly connected with a gear (101) that meshes with the outer peripheral wall of the wind sleeve (6).

2. A 3D printer with adjustable lifting platform height according to claim 1, characterized in that: Four guide columns (11) are fixedly connected to the base (1); the seat (2) is rectangular and is provided with guide holes (21) close to the corners and slidably connected to the guide columns (11); and limit plates (311) are fixedly connected to the two ends of the truss (31) and slidably connected to the guide columns (11).

3. The 3D printer with adjustable lifting platform according to claim 1, characterized in that: A vertical plate (12) is fixedly connected to the base (1), the vertical plate (12) is rotatably connected to the drive shaft (9), and a support ring (121) sleeved on the outside of the wind sleeve (6) is fixedly connected to the top of the vertical plate (12), and the support ring (121) is rotatably connected to the wind sleeve (6).

4. The 3D printer with adjustable lifting platform according to claim 1, characterized in that: The outer peripheral wall of the air jacket (6) is provided with two circumferentially symmetrical hot air nozzles (61) and cold air nozzles (62).

5. A 3D printer with adjustable lifting platform height according to claim 4, characterized in that: The hot air nozzle (61) and the cold air nozzle (62) are both provided with fans (102), the outer wall of the air sleeve (6) is provided with a curved pipe (63) connecting the hot air nozzle (61) and the cold air nozzle (62), and a semiconductor cooling plate (103) is provided in the middle of the curved pipe (63).

6. The 3D printer with adjustable lifting platform according to claim 5, characterized in that: A conical filter cover (104) is disposed inside the hot air nozzle (61) and the cold air nozzle (62). The conical filter cover (104) is disposed close to the inner cavity of the air sleeve (6) and the two are clearance-matched. The fan (102) is disposed inside the conical filter cover (104).

7. The 3D printer with adjustable lifting platform according to claim 1, characterized in that: The bottom of the support column (105) is fixedly connected to a seat plate (1051), and the bottom of the seat plate (1051) is bonded to a resistance-enhancing rubber pad (10511).

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