Raw material premixer for 3D printing

Abstract

The utility model provides a 3D printing raw material premixer which comprises a mixing box, a motor is installed in the middle of the top end of the mixing box, a rotating shaft is movably installed at the output end of the motor, a first gear is movably installed at the lower end of the rotating shaft, a plurality of second gears are connected to the outer side of the first gear in a tooth meshing mode, and connecting rods are embedded in the second gears. The front part of the bottom end of the mixing box is provided with two top blocks, the interiors of the top blocks are in threaded connection with screw rods, the bottom ends of the screw rods are fixedly provided with first bevel gears, the lower ends of the first bevel gears are in meshed connection with second bevel gears, and the interiors of the second bevel gears are embedded with movable rods. According to the raw material premixer for 3D printing, the effects that the working efficiency is improved, stirring is sufficient, materials do not need to be stirred for the second time, time is saved, the lifting mechanism is arranged, the height of one side of the premixer can be adjusted, pigment can be completely poured out, and it is guaranteed that the materials are not wasted are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and more specifically to a raw material premixer for 3D printing. Background Art

[0002] 3D printing technology appeared in the mid-1990s. It is actually the latest rapid prototyping device using technologies such as photocuring and paper lamination. It has basically the same working principle as ordinary printing. The printer is filled with "printing materials" such as liquid or powder. After connecting to the computer, the "printing materials" are stacked layer by layer through computer control, and finally the blueprint on the computer is turned into a physical object. This printing technology is called 3D stereoscopic printing technology. Common materials for 3D printing include nylon glass fiber, durable nylon material, gypsum material, aluminum material, titanium alloy, stainless steel, silver plating, gold plating, rubber, plastic particles, iron powder, and aluminum powder. For the known raw material premixer for 3D printing, refer to the patent number: CN213533818U. Most of the existing raw material premixers for 3D printing have only two spiral leaves at the same height, which may lead to too slow raw material premixing efficiency, inadequate premixing, etc. When the filter screen inside the premixer is used for too long, the filter screen will be blocked by raw materials, and it is inconvenient to replace or clean the filter screen, and the internal spiral leaves will also cause vibration and noise when rotating.

[0003] In response to the above problems, after the filter inside the premixer has been used for too long, the raw materials will clog the filter, which is inconvenient to replace or clean, and the internal spiral blades will also cause vibration and noise when rotating. After a lot of searching, a patent number of 202320036840.8 was found for a 3D printing raw material premixer, which involves the field of 3D printing technology, including: a shell, and damping spring shock absorbers are installed at the four corners of the bottom of the shell; rubber shock-absorbing pads, which are installed in the bottom mounting holes of the damping spring shock absorbers, which are all opened at the bottom of the damping spring shock absorbers; a filter, which is installed in front of the shell; a filter plate, which is installed in front of the filter, etc., but the technical solution provided by the patent

[0004] (1) The spiral blade has low working efficiency and insufficient stirring, which requires secondary stirring of the material, wasting time.

[0005] (2) There is no lifting mechanism for the supporting feet, and the height of one side of the premixer cannot be adjusted, so the pigment cannot be completely poured out, resulting in waste of remaining materials.

[0006] The utility model can improve work efficiency, ensure full stirring, eliminate the need for secondary stirring of materials, save time, and is provided with a lifting mechanism that can adjust the height of one side of the premixer so that the pigment can be completely poured out, thereby ensuring that no material is wasted. Utility Model Content

[0007] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a raw material premixer for 3D printing.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material premixer for 3D printing, comprising: a mixing box, a motor is installed at the middle of the top of the mixing box, a rotating shaft is movably installed at the output end of the motor, a first gear is movably installed at the lower end of the rotating shaft, a plurality of second gears are connected to the outer side of the first gear through tooth meshing, a connecting rod is embedded in the interior of the second gear, and an auger blade is fixedly installed on the outer side of the connecting rod;

[0009] Two top blocks are installed at the front of the bottom end of the mixing box, the internal threads of the top blocks are connected to a screw rod, the bottom end of the screw rod is fixedly installed with a first bevel gear, the lower end of the first bevel gear is meshingly connected with a second bevel gear, a movable rod is embedded inside the second bevel gear, a rocker is fixedly installed on the left end of the movable rod, and a fixed seat is installed on the outer side of the movable rod.

[0010] A further preferred solution is that the number of the second gears is 4, and the 4 second gears move synchronously through the first gear.

[0011] A further preferred solution is that a fixing plate is fixedly mounted on the bottom end of the rotating shaft.

[0012] A further preferred solution: a bearing is installed at the lower end of the connecting rod, and the bearing is a needle roller bearing.

[0013] A further preferred solution is that the movable rod is connected to two fixing seats, and a rubber pad is fixedly installed at the bottom end of the fixing seat.

[0014] A further preferred embodiment is that the auger blades extend from the upper end to the lower end and have a wavy cross section.

[0015] A further preferred solution is that two feed pipes are fixedly mounted on the top of the mixing box, and the cross-section of the upper ends of the two feed pipes is trapezoidal.

[0016] Beneficial effects:

[0017] 1. By setting up the first gear and the second gear, the first gear drives the four second gears to move synchronously, so that the auger blades below move, which improves work efficiency and saves time;

[0018] 2. A rocker is provided, and by shaking the rocker, one side of the premixer is raised or lowered, thereby controlling the amount of material flowing out, and the material can be poured out completely;

[0019] 3. The auger blade is provided, and the connecting rod is driven by the second gear to rotate the auger blade, and the auger blade extends from the upper end to the lower end of the connecting rod, and the cross section is wavy, which can effectively stir the material evenly;

[0020] 4. In summary, this type of raw material premixer for 3D printing can improve work efficiency by providing structures such as the first gear and the second gear, so that the mixing is sufficient, the material does not need to be stirred twice, and time is saved. In addition, a lifting mechanism can be provided to adjust the height of one side of the premixer so that the pigment can be completely poured out, ensuring that no material is wasted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the rocker structure of the utility model.

[0024] Figure 4 It is a schematic structural diagram of the first bevel gear and the second bevel gear of the utility model.

[0025] Figure 5 It is a schematic diagram of the structure of the first gear and the second gear of the utility model.

[0026] Figure 1-5 Middle: 1-mixing box, 2-feeding port, 3-motor, 4-rotating shaft, 5-first gear, 6-second gear, 7-connecting rod, 8-auger blade, 9-fixed seat, 10-movable rod, 11-rocker, 12-screw, 13-first bevel gear, 14-second bevel gear, 15-top block, 16-fixed plate, 17-bearing. DETAILED DESCRIPTION

[0027] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0028] See also Figure 1-5 In the embodiment of the utility model, a raw material premixer for 3D printing includes: a mixing box 1, a motor 3 is installed at the middle of the top of the mixing box 1, a rotating shaft 4 is movably installed at the output end of the motor 3, a first gear 5 is movably installed at the lower end of the rotating shaft 4, the outer side of the first gear 5 is connected to a plurality of second gears 6 through gear meshing, a connecting rod 7 is embedded in the second gear 6, and an auger blade 8 is fixedly installed on the outer side of the connecting rod 7;

[0029] Two top blocks 15 are installed at the front bottom of the mixing box 1, and the internal threads of the top blocks 15 are connected to the screw rod 12. The bottom end of the screw rod 12 is fixedly installed with a first bevel gear 13, and the lower end of the first bevel gear 13 is meshingly connected with a second bevel gear 14. A movable rod 10 is embedded in the interior of the second bevel gear 14, and a rocker arm 11 is fixedly installed at the left end of the movable rod 10. A fixed seat 9 is installed on the outer side of the movable rod 10.

[0030] In the embodiment of the utility model, the number of the second gears 6 is four, and the four second gears 6 move synchronously through the first gear 5, and the four second gears 6 drive the lower end connecting rod 7 to move, thereby improving work efficiency.

[0031] In the embodiment of the utility model, a fixing plate 16 is fixedly mounted on the bottom end of the rotating shaft 4 , and the fixing plate 16 is used to mount the first gear 5 , the second gear 6 and the rotating shaft 4 .

[0032] In the embodiment of the utility model, a bearing 17 is installed at the lower end of the connecting rod 7, and the bearing 17 makes the rotation of the connecting rod 7 smoother, and the bearing 17 is a needle bearing, which further improves the smoothness.

[0033] In the embodiment of the utility model, the movable rod 10 is connected to two fixing seats 9, the fixing seats 9 are used to install the first bevel gear 13 and the second bevel gear 14, and the bottom end of the fixing seat 9 is fixedly installed with a rubber pad, which plays a role of shock absorption.

[0034] In the embodiment of the utility model, the auger blade 8 extends from the upper end to the lower end, and the cross section is wavy. The material is stirred by the auger blade 8 to fully stir the material.

[0035] In the embodiment of the utility model, two feed pipes 2 are fixedly installed on the top of the mixing box 1. The two feed pipes 2 are provided to increase the feeding speed. The upper end cross-sections of the two feed pipes 2 are trapezoidal to prevent the material from flowing out.

[0036] Working principle: first pour the material from the feed pipe 2, then turn on the power, drive the first gear 5 to rotate through the rotating shaft 4, and connect the first gear 5 with the second gear 6 through meshing to make them move synchronously, and fully stir the material through the connecting rod 7 and the auger blade 8 at the lower end. When it is necessary to discharge the material, the movable rod 10 can be driven to rotate by shaking the rocker 11, and the screw 12 can be moved up and down through the cooperation of the first bevel gear 13 and the second bevel gear 14, and connected to the mixing box 1 through the top block 15, driving it to move up and down, making it tilted, and the material can be completely poured out.

Claims

1. A raw material premixer for 3D printing, comprising: A mixing box (1), wherein a motor (3) is installed at the middle of the top end of the mixing box (1), characterized in that: a rotating shaft (4) is movably installed at the output end of the motor (3), a first gear (5) is movably installed at the lower end of the rotating shaft (4), the outer side of the first gear (5) is connected to a plurality of second gears (6) through tooth meshing, a connecting rod (7) is embedded inside the second gear (6), and an auger blade (8) is fixedly installed on the outer side of the connecting rod (7); Two top blocks (15) are installed at the front of the bottom end of the mixing box (1), and the internal thread of the top block (15) is connected to the screw rod (12), and the bottom end of the screw rod (12) is fixedly installed with a first bevel gear (13), and the lower end of the first bevel gear (13) is meshingly connected with a second bevel gear (14), and a movable rod (10) is embedded inside the second bevel gear (14), and a rocker (11) is fixedly installed at the left end of the movable rod (10), and a fixed seat (9) is installed on the outer side of the movable rod (10).

2. A raw material premixer for 3D printing according to claim 1, characterized in that: The number of the second gears (6) is four, and the four second gears (6) move synchronously via the first gear (5).

3. A raw material premixer for 3D printing according to claim 1, characterized in that: A fixing plate (16) is fixedly mounted on the bottom end of the rotating shaft (4).

4. A raw material premixer for 3D printing according to claim 1, characterized in that: A bearing (17) is installed at the lower end of the connecting rod (7), and the bearing (17) is a needle bearing.

5. A raw material premixer for 3D printing according to claim 1, characterized in that: The movable rod (10) is connected to two fixing seats (9), and a rubber pad is fixedly mounted on the bottom end of the fixing seat (9).

6. A raw material premixer for 3D printing according to claim 1, characterized in that: The auger blade (8) extends from the upper end to the lower end, and has a wave-shaped cross section.

7. A raw material premixer for 3D printing according to claim 1, characterized in that: Two feed pipes (2) are fixedly mounted on the top of the mixing box (1), and the cross-sections of the upper ends of the two feed pipes (2) are trapezoidal.

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