Eccentric powder quantitative conveying device

Abstract

The utility model provides an eccentric powder quantitative conveying device which comprises a first bin body, a second bin body is arranged below the first bin body, and a conveying assembly is arranged between the first bin body and the second bin body. The conveying assembly comprises a stirring bin body arranged below the first bin body, a feeding port is formed in the side wall of the end, close to the stirring bin body in the width direction, of the top of the stirring bin body, the feeding port is connected with the first bin body, and a driving motor is arranged on the side wall of the stirring bin body in the length direction; the driving motor is connected with a spiral auger arranged in the stirring bin body, the spiral auger is arranged on the side wall of the end, far away from the feeding port, of the stirring bin body in the width direction, a discharging port is formed in the bottom of the end, far away from the driving motor, of the stirring bin body in the length direction, and the discharging port is connected with the second bin body. Through the arrangement of the eccentric spiral auger, material blockage and adhesion can be prevented, quantitative conveying can be achieved, the structure is simple, and practicability is high.

Description

Technical Field

[0001] This utility model relates to an eccentric powder quantitative conveying device, which is applied in the field of clay 3D printing. Background Technology

[0002] Clay 3D printing is an innovative method that combines traditional ceramic craftsmanship with modern 3D printing technology. Compared with traditional ceramic craftsmanship, clay 3D printing technology has a higher degree of freedom and can produce ceramic products with complex structures, breaking through the bottleneck of traditional ceramic processing technology.

[0003] Existing clay 3D printers can already mix raw materials inside the printer before extruding them into shape. Existing raw material conveying mechanisms, such as the vacuum powder metering device described in application number 202422359193.1, include a raw material conveying mechanism 100. Figure 1 As shown, the raw material conveying mechanism 100 can accurately control the discharge while stirring by setting a spiral auger between the first raw material silo and the second raw material silo. However, due to the certain viscosity of the clay material, blockage is easily caused in the raw material silo, which not only makes the discharge difficult, but also increases the wear and tear on the spiral auger. Therefore, this utility model designs an eccentric powder quantitative conveying device. Utility Model Content

[0004] This invention provides an eccentric powder metering conveying device, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] An eccentric powder metering conveying device includes:

[0007] A first compartment, a second compartment is disposed below the first compartment, and a conveying component is disposed between the first compartment and the second compartment;

[0008] The conveying assembly includes a mixing chamber located below the first chamber. A feed inlet is located on the top of the mixing chamber near one side wall along the width direction, and the feed inlet is connected to the first chamber. A drive motor is located on the side wall along the length direction of the mixing chamber, and the drive motor is connected to a spiral auger located inside the mixing chamber. The spiral auger is located on the side wall along the width direction of the mixing chamber away from the feed inlet. A discharge outlet is located at the bottom of the mixing chamber along the length direction away from the drive motor, and the discharge outlet is connected to the second chamber.

[0009] As a further improvement, the stirring bin body is provided with a fixed support on both sides, the fixed support is provided with a mounting groove, the mounting groove is provided with a rotating bearing, and the two ends of the spiral auger are mounted in the rotating bearing.

[0010] As a further improvement, the driving motor is connected with a speed reducer, and the speed reducer is connected with the spiral auger.

[0011] As a further improvement, the stirring bin body and the spiral auger are inclined, and the included angle between the spiral auger and the horizontal plane is 0-15°.

[0012] As a further improvement, the spiral auger comprises a first spiral auger arranged in the stirring bin body and close to the feeding port, and a second spiral auger arranged in the stirring bin body and close to the discharging port, the first spiral auger and the second spiral auger rotate coaxially, the pitch of the first spiral auger is greater than that of the second spiral auger, and the blade diameter of the first spiral auger is greater than that of the second spiral auger.

[0013] As a further improvement, the second bin body is provided with a weighing assembly, the weighing assembly comprises a mounting plate fixed in the printer, the mounting plate is provided with a weighing module, the side wall of the second bin body is fixedly provided with a pressing block, and the pressing block abuts against the weighing module.

[0014] The beneficial effects of the utility model are as follows: a conveying assembly is arranged between the first bin body and the second bin body, the conveying assembly comprises a stirring bin body arranged below the first bin body, the stirring bin body is provided with a feeding port on the top and close to one end of the side wall in the width direction, the feeding port is connected with the first bin body, a driving motor is arranged on the side wall in the length direction, the driving motor is connected with a spiral auger arranged in the stirring bin body, the spiral auger is arranged on the side wall away from the feeding port in the width direction of the stirring bin body, so that the ceramic clay material has a certain space when entering the stirring bin body, and blockage is prevented, the spiral auger is used for stirring to prevent adhesion, the stirring bin body is provided with a discharging port at the bottom and away from the driving motor in the length direction, the discharging port is connected with the second bin body, the spiral auger can quantitatively convey the ceramic clay material into the second bin body, and then the material enters the extruder for mixing and discharging, the eccentric spiral auger can not only prevent material blockage and adhesion, but also can quantitatively convey the material, the structure is simple, and the practicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 is a schematic diagram of the overall structure of a prior art clay 3D printer.

[0017] Figure 2 is a schematic diagram of the structure provided in the embodiments of the present application.

[0018] Figure 3 is a schematic diagram of the exploded structure provided in the embodiments of the present application.

[0019] Figure 4 is a side view provided in another embodiment of the present application.

[0020] Figure 5 is a schematic diagram of the cross-sectional structure at A-A in Figure 4

[0021] Figure 6 is a schematic diagram of the inclined installation structure of the conveying assembly provided in another embodiment of the present application.

[0022] The drawings are identified as follows:

[0023] 10, first bin body;

[0024] 20, conveying assembly; 21, stirring bin body; 211, feeding port; 212, discharging port; 22, driving motor; 23, spiral auger; 231, first spiral auger; 232, second spiral auger; 24, fixed support; 241, mounting groove; 25, rotating bearing; 26, speed reducer;

[0025] 30, second bin body;

[0026] 40, weighing assembly; 41, mounting plate; 42, weighing module; 43, pressing block. DETAILED DESCRIPTION

[0027] ​In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the detailed description of the embodiments of the present application provided in the following drawings is not intended to limit the scope of the claimed present application, but only to represent the selected embodiments of the present application.

[0028] In the description of the present application, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] Referring to Figures 2-3 An eccentric type powder quantitative conveying device is shown, which comprises a first bin body 10, in this embodiment, the first bin body 10 is a vacuum raw material bin body, a plurality of raw material bin bodies are provided on the printer to store and convey clay materials, a second bin body 30 is provided below the first bin body 10, and a conveying assembly 20 is provided between the first bin body 10 and the second bin body 30.

[0030] The conveying assembly 20 is used for stirring and conveying the clay material, the conveying assembly 20 comprises a stirring bin 21 arranged below the first bin body 10, the stirring bin 21 is provided with an inlet 211 near the top of the stirring bin 21 and one end side wall along the width direction of the stirring bin 21, the inlet 211 is connected with the first bin body 10, the stirring bin 21 is provided with a fixed support 24 on both sides, the fixed support 24 is provided with a mounting groove 241, the function of the fixed support 24 is to be installed on the printer, the rotating bearing 25 is arranged in the mounting groove 241, the both ends of the spiral auger 23 are installed in the rotating bearing 25, the rotating bearing 25 at both ends can play a role in stable operation, one end of the spiral auger 23 near the inlet 211 is connected with the driving motor 22, in this embodiment, the driving motor 22 is connected with the speed reducer 26, the speed reducer 26 is connected with the spiral auger 23, which can better control the spiral auger 23, the spiral auger 23 is arranged on the side wall away from the inlet 211 along the width direction of the stirring bin 21, since there is no device in the first bin body 10 that can accurately control the amount of material, therefore, during the feeding and stirring process, the material is easy to accumulate at the inlet 211, not only easy to block, but also the load on the spiral auger 23 at the inlet 211 is large, which is easy to cause damage, therefore, the eccentric spiral auger 23 can increase the space when the material falls, prevent the material from accumulating, prevent blockage, and can reduce the load of the spiral auger 23, so that the equipment can run stably, the stirring bin 21 is provided with a discharge port 212 at the bottom away from the driving motor 22 along the length direction, the discharge port 212 is connected with the second bin body 30, the spiral auger 23 can quantitatively convey the clay material into the second bin body 30, and then enter the extruder for mixing and discharging.

[0031] The second bin body 30 is provided with a weighing assembly 40, the weighing assembly 40 comprises a mounting plate 41 fixed in the printer, the mounting plate 41 is provided with a weighing module 42, the second bin body 30 is provided with a pressing block 43 on the side wall, the pressing block 43 abuts against the weighing module 42, so that the weight of the material in the second bin body 30 can be known, the structure is simple and the operation is convenient.

[0032] Referring to Figures 4-5In another embodiment, the screw conveyor 23 comprises a first screw conveyor 231 arranged in the stirring bin 21 near the inlet 211, and a second screw conveyor 232 arranged in the stirring bin 21 near the outlet 212, the first screw conveyor 231 and the second screw conveyor 232 rotate coaxially, the pitch of the first screw conveyor 231 is greater than that of the second screw conveyor 232, and the blade diameter of the first screw conveyor 231 is greater than that of the second screw conveyor 232. The pitch and the blade diameter of the first screw conveyor 231 are greater than those of the second screw conveyor 232, so that the first screw conveyor 231 can achieve better stirring effect. The second screw conveyor 232 needs to control the weight of the material flowing to the extruding mechanism more accurately, so the pitch and the blade diameter of the second screw conveyor 232 are smaller than those of the first screw conveyor 231.

[0033] Referring to Figure 6 In another embodiment, the stirring bin 21 and the screw conveyor 23 are arranged obliquely, and the included angle a between the screw conveyor 23 and the horizontal plane is 0-15°. In this embodiment, the oblique angle a of the stirring bin 21 and the screw conveyor 23 is 15°. The oblique screw conveyor 23 can improve the flowability of the material, so that the material is more smooth in the conveying process, and the blocking and accumulation phenomenon is reduced, thereby improving the stirring efficiency. However, the size of the oblique angle has certain influence on the filling coefficient. The greater the oblique angle, the smaller the allowed filling coefficient, and the lower the conveying capacity of the screw conveyor 23. Therefore, the oblique angle should not be too large. When the filling coefficient is small, the material accumulation height is low, and most of the material is close to the outer side of the screw, so that the material has a high axial speed. The movement of the material in the conveying direction is significantly more than that in the circumferential direction, and the slip surface of the movement is almost parallel to the conveying direction. At this time, the additional material flow perpendicular to the conveying direction is weakened, and the energy consumption is reduced. Therefore, the oblique angle of 15° in this embodiment has the best stirring and conveying effect, and can reduce the energy consumption and prevent the reduction of the conveying capacity of the screw conveyor 23.

[0034] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An eccentric powder dosing device, characterized in that The utility model relates to a kind of printing ink conveying device, including: First bin (10), second bin (30) is arranged below the first bin (10), and conveying assembly (20) is arranged between the first bin (10) and second bin (30); The conveying assembly (20) includes stirring bin (21) arranged below the first bin (10), and the stirring bin (21) is provided with a feeding port (211) on the top of the stirring bin (21) near the width direction one end side wall of the stirring bin (21), the feeding port (211) is connected with the first bin (10), a drive motor (22) is arranged on the length direction side wall of the stirring bin (21), the drive motor (22) is connected with the spiral auger (23) arranged in the stirring bin (21), the spiral auger (23) is arranged on the width direction far from the feeding port (211) one end side wall of the stirring bin (21), and a discharge port (212) is arranged on the length direction far from the drive motor (22) one end bottom of the stirring bin (21), and the discharge port (212) is connected with the second bin (30).

2. A device for the dosed delivery of a powder according to claim 1, characterized in that The stirring bin (21) is provided with a fixed support (24) on both sides, the fixed support (24) is provided with a mounting groove (241), the mounting groove (241) is provided with a rotating bearing (25), both ends of the spiral auger (23) are mounted in the rotating bearing (25), and the spiral auger (23) is connected with the drive motor (22) near the feeding port (211) one end.

3. The eccentric powder metering conveying device according to claim 2, characterized in that, The drive motor (22) is connected with a speed reducer (26), and the speed reducer (26) is connected with the spiral auger (23).

4. A device for the dosed delivery of a powder according to claim 1, characterized in that The stirring bin (21) and the spiral auger (23) are arranged obliquely, and the included angle α between the spiral auger (23) and the horizontal plane is 0-15 °.

5. A device for the dosed delivery of a powder according to claim 4, characterized in that The spiral auger (23) includes a first spiral auger (231) arranged in the stirring bin (21) near the feeding port (211) one end and a second spiral auger (232) arranged in the stirring bin (21) near the discharge port (212) one end, the first spiral auger (231) and the second spiral auger (232) rotate coaxially, the pitch of the first spiral auger (231) is greater than that of the second spiral auger (232), and the blade diameter of the first spiral auger (231) is greater than that of the second spiral auger (232).

6. A device for the dosed delivery of a powder according to claim 1, characterized in that The second bin (30) is provided with a weighing assembly (40), the weighing assembly (40) includes a mounting plate (41) fixed in the printer, the mounting plate (41) is provided with a weighing module (42), the second bin (30) side wall is fixed with a pressing block (43), and the pressing block (43) abuts against the weighing module (42).

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