Large-size 3D printing hand plate model manufacturing device

Abstract

The utility model discloses a large-size 3D printing hand plate model manufacturing device, and relates to the technical field of 3D printing, the scheme comprises a base, the top of the base is fixedly connected with a supporting plate of a hollow structure, and the upper surface of the supporting plate is fixedly provided with an XYZ high-precision moving platform; the XYZ high-precision mobile platform is fixedly installed on the base, the movable end of the XYZ high-precision mobile platform is fixedly provided with a printing spray head, the center of the inner bottom of the base is fixedly provided with an air cylinder, and the movable end of the air cylinder is fixedly connected with a workbench. And through the arranged adjusting mechanism, an electric push rod drives a baffle to move upwards, so that the number of air outlet holes can be gradually changed, then adjustment can be conveniently carried out along with the height of the model, practicability is improved, manual adjustment is not needed, and the workload is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a device for manufacturing a large-size 3D printing prototype model. Background Technique

[0002] The prototype model is the first step to verify the feasibility of a product and is the most direct and effective way to find the defects, deficiencies, and drawbacks of the designed product. 3D printing is a commonly used processing method for prototype models. After retrieval, a patent with the publication number CN219820662U of the Chinese patent discloses a product forming device for 3D printing, including a forming box. One side of the forming box is open. Two square tubes are symmetrically and fixedly installed on the inner walls of the opposite sides of the forming box. The two ends of the two square tubes are closed, and a plurality of air outlet holes are evenly penetrated through the outer surfaces of the adjacent sides of the two square tubes.

[0003] Although the above technical solution can cool down the 3D printed product during rotation to ensure that the overall 3D printed product can obtain a cooling effect and improve the overall cooling speed of the 3D printed product, it is necessary to rotate and cool down after the model is formed and cannot cool down during the printing process, thus increasing the working time and further reducing the working efficiency. Moreover, when adjusting the air outlet height, it is also necessary to manually rotate the handwheel, increasing the working burden. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a device for manufacturing a large-size 3D printing prototype model, which solves the problems raised in the background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A device for manufacturing a large-size 3D printing prototype model, including a base. The top of the base is fixedly connected with a support plate with a hollow structure. The upper surface of the support plate is fixedly installed with an XYZ high-precision moving platform. The movable end of the XYZ high-precision moving platform is fixedly installed with a printing nozzle. The center position of the inner bottom of the base is fixedly installed with a cylinder. The movable end of the cylinder is fixedly connected with a workbench. A cooling mechanism is installed between the lower surface of the support plate and the inside of the base. An adjusting mechanism matched with the cooling mechanism is installed inside the base;

[0006] The cooling mechanism includes L-shaped plates symmetrically and fixedly connected to both sides of the lower surface of the support plate. A first annular frame is fixedly connected between the two L-shaped plates. The inner wall of the first annular frame is hermetically slidably connected with a second annular frame, and the inside of the first annular frame and the second annular frame are connected and communicated. Two vertical pipes are symmetrically and fixedly communicated at the top of the second annular frame. A plurality of air outlet holes are sequentially opened on one side of the outer surface of the vertical pipe.

[0007] Preferably, an air pump is fixedly installed inside the base, and a connecting pipe is fixedly connected between the air outlet end of the air pump and the first annular frame, facilitating the generation of air flow.

[0008] Preferably, a motor is fixedly installed on the upper surface of the first annular frame, the output of the motor is fixedly connected with a gear, and an external gear ring meshing with the gear is fixedly connected to the upper surface of the second annular frame, facilitating the rotation of the two vertical pipes.

[0009] Preferably, the adjusting mechanism includes a baffle slidably connected inside the vertical pipe, a vertical rod is fixedly connected to the lower surface of the baffle, the bottom end of the vertical rod penetrates through the second annular frame and is hermetically slidably connected to the inside of the second annular frame, and an annular plate is fixedly connected between the bottom ends of the two vertical rods. The up and down movement of the vertical rod can drive the up and down movement of the baffle, thereby changing the number of air outlet holes.

[0010] Preferably, two electric push rods are symmetrically and fixedly installed on the inner bottom of the base, the top end of the electric push rod is fixedly connected with a connecting block, the top of the connecting block is rotationally connected with a steel ball in an embedded manner, and an annular groove matching with the steel ball is formed on the lower surface of the annular plate, facilitating the up and down movement of the annular plate and the baffle.

[0011] Preferably, the thickness of the baffle is greater than the diameter of the air outlet hole, and a spring is fixedly connected between the upper surface of the annular plate and the lower surface of the second annular frame. The spring provided facilitates the reset of the baffle.

[0012] The utility model provides a large-size 3D printing prototype model manufacturing device. It has the following beneficial effects:

[0013] 1. For this large-size 3D printing prototype model manufacturing device, through the provided cooling mechanism, during use, it can evenly blow air for heat dissipation on the already printed part, without waiting for complete printing before blowing air for heat dissipation, thereby improving work efficiency, and solving the problem that the existing device needs to wait for complete printing before heat dissipation, resulting in reduced work efficiency.

[0014] 2. For this large-size 3D printing prototype model manufacturing device, through the provided adjusting mechanism, when the electric push rod drives the baffle to move upward, the number of air outlet holes can be gradually changed, thereby facilitating adjustment according to the height of the model, improving practicability, without manual adjustment, reducing the work burden, and solving the problem that the existing device needs to manually rotate the handwheel for adjustment, increasing the work burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2Schematic diagram of the cylinder and workbench structure of the present utility model;

[0017] Figure 3 Schematic diagram of the structure of the cooling mechanism of the present utility model;

[0018] Figure 4 Schematic diagram of the internal structure of the cooling mechanism and adjustment mechanism of the present utility model;

[0019] Figure 5 Schematic diagram of a partial structure of the present utility model.

[0020] In the figure, 1, base; 2, support plate; 3, XYZ high-precision moving platform; 4, printing nozzle; 5, cylinder; 6, workbench; 7, cooling mechanism; 71, L-shaped plate; 72, first annular frame; 73, second annular frame; 74, vertical pipe; 75, air outlet hole; 76, air pump; 77, motor; 78, gear; 79, external gear ring; 8, adjustment mechanism; 81, baffle; 82, vertical rod; 83, annular plate; 84, electric push rod; 85, connecting block; 86, steel ball. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1:

[0023] As Figure 1 and Figure 2 shown, a large-size 3D printing prototype model manufacturing device includes a base 1, the top of the base 1 is fixedly connected with a support plate 2 of a hollow structure, the upper surface of the support plate 2 is fixedly installed with an XYZ high-precision moving platform 3, the movable end of the XYZ high-precision moving platform 3 is fixedly installed with a printing nozzle 4, the center position of the inner bottom of the base 1 is fixedly installed with a cylinder 5, and the movable end of the cylinder 5 is fixedly connected with a workbench 6. During use, the XYZ high-precision moving platform 3 can drive the printing nozzle 4 to perform three-axis movement, and a large-size prototype model can be 3D printed on the workbench 6, and the operation of the cylinder 5 can drive the workbench 6 to rise and fall.

[0024] Embodiment 2:

[0025] As Figure 1 , Figure 3 , Figure 4 and Figure 5As shown in the figure, a cooling mechanism 7 is installed between the lower surface of the support plate 2 and the interior of the base 1. The cooling mechanism 7 includes L-shaped plates 71 symmetrically and fixedly connected to both sides of the lower surface of the support plate 2. A first annular frame 72 is fixedly connected between the two L-shaped plates 71. The inner wall of the first annular frame 72 is hermetically and slidably connected to a second annular frame 73, and the interiors of the first annular frame 72 and the second annular frame 73 are interconnected. Two vertical pipes 74 are symmetrically and fixedly interconnected at the top of the second annular frame 73. A plurality of air outlet holes 75 are sequentially formed on one side of the outer surface of the vertical pipe 74. An air pump 76 is fixedly installed inside the base 1, and a connecting pipe is fixedly connected between the air outlet end of the air pump 76 and the first annular frame 72. A motor 77 is fixedly installed on the upper surface of the first annular frame 72, and an output of the motor 77 is fixedly connected to a gear 78. An external gear ring 79 meshing with the gear 78 is fixedly connected to the upper surface of the second annular frame 73.

[0026] During use, the air generated by the operation of the air pump 76 can be ejected through the air outlet holes 75, and the rotation of the motor 77 drives the rotation of the gear 78, and the two vertical pipes 74 can be driven to rotate through the external gear ring 79, so that the printed part can be evenly blown and cooled, without waiting for complete printing before blowing and cooling, thereby improving work efficiency, and solving the problem that the existing device needs to wait for complete printing before cooling, resulting in reduced work efficiency.

[0027] Embodiment 3:

[0028] As Figure 1 、 Figure 3 、 Figure 4 and Figure 5 shown in the figure, an adjusting mechanism 8 cooperating with the cooling mechanism 7 is installed inside the base 1. The adjusting mechanism 8 includes a baffle 81 slidably connected inside the vertical pipe 74. The lower surface of the baffle 81 is fixedly connected to a vertical rod 82. The bottom end of the vertical rod 82 penetrates through the second annular frame 73 and is hermetically and slidably connected to the interior of the second annular frame 73. An annular plate 83 is fixedly connected between the bottom ends of the two vertical rods 82. Two electric push rods 84 are symmetrically and fixedly installed on the inner bottom of the base 1. The top end of the electric push rod 84 is fixedly connected to a connecting block 85. The top of the connecting block 85 is rotatably connected with a steel ball 86 by embedding. An annular groove cooperating with the steel ball 86 is formed on the lower surface of the annular plate 83. The thickness of the baffle 81 is greater than the diameter of the air outlet hole 75. A spring is fixedly connected between the upper surface of the annular plate 83 and the lower surface of the second annular frame 73.

[0029] The operation of the electric push rod 84 drives the connecting block 85 to move upward. Through the steel balls 86, the annular plate 83 can be driven to move upward, and through the vertical rod 82, the baffle plate 81 can be driven to move upward, so that the number of air outlets 75 can be gradually changed, and thus it is convenient to adjust according to the height of the model, improving the practicability, without manual adjustment, reducing the work burden, and thus solving the problem that the existing device needs to manually rotate the handwheel for adjustment, which increases the work burden.

[0030] Working principle: When in use, the XYZ high-precision moving platform 3 can drive the printing nozzle 4 to perform three-axis movement, and a large-size prototype model can be 3D printed on the workbench 6. The operation of the air cylinder 5 can drive the workbench 6 to rise and fall.

[0031] The air generated by the operation of the air pump 76 can be ejected through the air outlets 75, and the rotation of the motor 77 drives the gear 78 to rotate. Through the external gear ring 79, the two vertical pipes 74 can be driven to rotate, so that the printed part can be evenly blown and cooled, without waiting to blow and cool after complete printing, thus improving the work efficiency, and thus solving the problem that the existing device needs to wait for complete printing before cooling, which reduces the work efficiency.

[0032] The operation of the electric push rod 84 drives the connecting block 85 to move upward. Through the steel balls 86, the annular plate 83 can be driven to move upward, and through the vertical rod 82, the baffle plate 81 can be driven to move upward, so that the number of air outlets 75 can be gradually changed, and thus it is convenient to adjust according to the height of the model, improving the practicability, without manual adjustment, reducing the work burden, and thus solving the problem that the existing device needs to manually rotate the handwheel for adjustment, which increases the work burden.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0034] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large-size 3D printing prototype model making device, comprising a base (1), characterized in that: A support plate (2) with a hollow structure is fixedly connected to the top of the base (1); an XYZ high-precision mobile platform (3) is fixedly mounted on the upper surface of the support plate (2); a print head (4) is fixedly mounted on the movable end of the XYZ high-precision mobile platform (3); a cylinder (5) is fixedly mounted at the center of the inner bottom of the base (1); a workbench (6) is fixedly connected to the movable end of the cylinder (5); a cooling mechanism (7) is installed between the lower surface of the support plate (2) and the interior of the base (1); and an adjustment mechanism (8) that cooperates with the cooling mechanism (7) is installed inside the base (1); The cooling mechanism (7) comprises an L-shaped plate (71) symmetrically fixedly connected to both sides of the lower surface of the support plate (2); a first annular frame (72) is fixedly connected between the two L-shaped plates (71); the inner wall of the first annular frame (72) is sealingly and slidably connected to a second annular frame (73); the first annular frame (72) is internally connected to the second annular frame (73); two vertical pipes (74) are symmetrically fixedly connected to each other at the top of the second annular frame (73); and a plurality of air outlet holes (75) are sequentially opened on one side of the outer surface of the vertical pipe (74).

2. A large-size 3D printing prototype model making device according to claim 1, characterized in that: An air pump (76) is fixedly installed inside the base (1), and a connecting pipe is fixedly connected between the air outlet end of the air pump (76) and the first annular frame (72).

3. A large-size 3D printing prototype model making device according to claim 2, characterized in that: A motor (77) is fixedly mounted on the upper surface of the first annular frame (72), and an output of the motor (77) is fixedly connected to a gear (78). An outer gear ring (79) meshing with the gear (78) is fixedly connected to the upper surface of the second annular frame (73).

4. A large-size 3D printing prototype model making device according to claim 1, characterized in that: The adjustment mechanism (8) comprises a baffle (81) slidably connected to the interior of the vertical tube (74); a vertical rod (82) is fixedly connected to the lower surface of the baffle (81); the bottom end of the vertical rod (82) passes through the second annular frame (73) and is sealingly slidably connected to the interior of the second annular frame (73); and an annular plate (83) is fixedly connected between the bottom ends of the two vertical rods (82).

5. A large-size 3D printing prototype model making device according to claim 4, characterized in that: Two electric push rods (84) are symmetrically fixedly mounted on the inner bottom of the base (1); the top of the electric push rod (84) is fixedly connected to a connecting block (85); the top of the connecting block (85) is embedded with a steel ball (86) for rotational connection; and the lower surface of the annular plate (83) is provided with an annular groove that matches the steel ball (86).

6. A large-size 3D printing prototype model making device according to claim 4, characterized in that: The thickness of the baffle (81) is greater than the diameter of the air outlet (75), and a spring is fixedly connected between the upper surface of the annular plate (83) and the lower surface of the second annular frame (73).

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