WO2023207868A1

WO2023207868A1 - Stirring device and 3d printer

Info

Publication number: WO2023207868A1
Application number: PCT/CN2023/090174
Authority: WO
Inventors: 马义和
Original assignee: 盈创新材料(上海)有限公司
Priority date: 2022-04-27
Filing date: 2023-04-24
Publication date: 2023-11-02
Also published as: CN217553152U

Abstract

A stirring device and a 3D printer. The stirring device comprises at least one material bin (100) and a dust removal mechanism (200). The material bin (100) is used for accommodating raw materials; the dust removal mechanism (200) is arranged on the material bin (100); a dust removal hole is formed in the upper end surface of the material bin (100); the dust removal mechanism (200) comprises a dust removal assembly (210) and a backflow assembly (220); the dust removal assembly (210) is communicated with the interior of the material bin (100) by means of the dust removal hole to recover dust generated in the material bin (100); part of the backflow assembly (220) extends into the dust removal assembly (210); the backflow assembly (220) can intermittently blow dust in the dust removal assembly (210) back to the material bin (100) from the dust removal hole, so that dust recovered in the dust removal assembly (210) can be automatically cleaned, and there is no need to manually clean dust by an operator. The process for the backflow assembly (220) to blow the dust for removal is set to be intermittent, thereby facilitating energy conservation and emission reduction. According to the 3D printer, by means of the stirring device, dust recovered in the dust removal assembly (210) can be automatically cleaned, so that the frequency of manually cleaning dust by an operator is reduced, and the effects of energy conservation and emission reduction are improved.

Description

A kind of mixing device and 3D printer

Technical field

The utility model relates to the technical field of 3D printing, in particular to a stirring device and a 3D printer.

Background technique

3D printing is usually achieved using digital technology material 3D printers. It is often used to make models in the fields of mold manufacturing, industrial design, architecture and other fields, and is gradually used in the direct manufacturing of some products. There are already parts printed using this technology.

3D printers used in the construction field include a mixing device, into which one or more raw materials are transported and thoroughly mixed for 3D printing.

The existing mixing device includes a silo for accommodating raw materials and a dust removal component arranged on the silo. The dust removal component is connected to the silo to achieve dust removal purposes. However, when too much dust accumulates in the dust removal component, the operator needs to manually replace it, and the accumulation of dust leads to high dust removal energy consumption.

In order to solve the above problems, there is an urgent need to provide a stirring device and a 3D printer, which can solve the problem that excessive dust accumulation in the dust removal component requires the operator to manually replace it, and the accumulation of dust leads to high dust removal energy consumption.

Utility model

One purpose of the utility model is to provide a stirring device to reduce the frequency of manual dust cleaning by the operator and improve energy saving and emission reduction.

One purpose of the present utility model is to provide a 3D printer that uses the above-mentioned stirring device to reduce the frequency of manual dust cleaning by the operator and improve energy saving and emission reduction.

To achieve this purpose, the utility model adopts the following technical solutions:

A stirring device including:

At least one silo to hold raw materials; and

A dust removal mechanism is provided on the silo. A dust removal hole is provided on the upper end surface of the silo. The dust removal mechanism includes a dust removal component and a return flow component. The dust removal component communicates with the interior of the silo through the dust removal hole. Communicated to recover dust in the silo, part of the return flow assembly extends into the dust removal assembly, and the return flow assembly is configured to intermittently remove the dust recovered from the dust removal assembly from the dust removal assembly. The hole blows back into the silo.

As an optional solution, the reflow component includes:

A return pipe, one end of which extends into the dust removal assembly;

A gas generating device is connected to the other end of the return pipe, and the gas generating device can blow gas through the return pipe to the dust in the dust removal assembly.

As an optional solution, the reflow component also includes:

A nozzle head is provided at one end of the return pipe away from the gas generating device, and the spray direction of the nozzle head is the side wall and end surface of the dust removal assembly away from the dust removal hole.

As an optional solution, the dust removal component includes:

A dust removal bucket is provided on the dust removal hole; and

A dust removal driving member is provided at one end of the dust removal barrel away from the dust removal hole, and is configured to drive the dust into the dust removal barrel.

As an optional solution, the stirring device also includes:

At least one conveying mechanism is provided in one-to-one correspondence with the silo. The conveying mechanism is used to convey the raw materials. The conveying mechanism includes a conveying drive assembly and a conveying assembly. The conveying assembly is connected with the material. The bottom of the bin is connected and is arranged obliquely upward at a first included angle with the horizontal plane, and the conveying drive assembly is arranged at a second included angle with the conveying direction of the conveying assembly.

As an optional solution, the second included angle is 90° or 180°.

As an optional solution, a visual window is provided on the conveying assembly, and the visual window is configured to observe and repair the conveying assembly.

As an optional solution, the stirring device also includes a mixing chamber and a liquid supply component, and the liquid supply component includes:

a liquid supply tank capable of supplying liquid to the mixing chamber;

A liquid level detection component is provided in the liquid supply tank, and the liquid level detection component can float on the liquid surface of the liquid; and

An alarm is connected to the liquid level detection member. When the position of the liquid level detection member exceeds the lowest liquid level or exceeds the highest liquid level, the alarm can sound an alarm.

As an optional solution, the silo includes:

The silo body is provided with a feed inlet; and

Cover plate covers the feed inlet.

A 3D printer includes a stirring device as described in any one of the above.

The beneficial effects of this utility model are:

The utility model provides a stirring device, which includes at least one bin and a dust removal mechanism. The silo is used to accommodate raw materials. The dust removal mechanism is arranged on the silo. A dust removal hole is provided on the upper end surface of the silo. The dust removal mechanism includes a dust removal component and a return flow component. The dust removal component is connected to the interior of the silo through the dust removal hole to recycle the silo. The dust generated in the dust removal component is partially extended into the dust removal component. The return flow component can intermittently blow the dust in the dust removal component from the dust removal hole back into the silo, so that the dust recovered in the dust removal component can be automatically cleaned without the need for an operator. Manual dust removal. The return flow component blows the dust from the dust removal hole back to the silo, which helps to simplify the structure of the return flow component and realizes raw material recovery, which is beneficial to cost savings. The dust blowing process of the return flow component is set intermittently, which is beneficial to energy saving and emission reduction.

The utility model also provides a 3D printer. Through the above-mentioned stirring device, it is convenient to automatically clean the dust recovered in the dust removal assembly, thereby reducing the frequency of manual dust cleaning by the operator and improving the effect of energy saving and emission reduction.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the following will briefly introduce the drawings used in the description of the embodiments of the present utility model. Obviously, the drawings in the following description are only illustrations of the present utility model. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on the content of the embodiments of the present invention and these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a stirring device provided by an embodiment of the present utility model;

Figure 2 is a partial cross-sectional structural schematic diagram of the dust removal mechanism provided by the embodiment of the present utility model;

Figure 3 is a schematic cross-sectional structural view of the conveying mechanism of the stirring device provided by the embodiment of the present utility model;

Figure 4 is a partial enlarged schematic diagram of position A in Figure 3.

The markings in the figure are as follows:

100-silo; 110-silo body; 120-cover;

200-dust removal mechanism; 210-dust removal component; 211-dust removal barrel; 212-dust removal driving part; 220-return component; 221-return pipe; 222-gas generating device; 223-nozzle;

300-Conveying mechanism; 310-Conveying drive assembly; 320-Conveying assembly; 321-Visual window;

400-mixing bin;

500-liquid supply component; 510-liquid supply tank; 520-liquid level detection piece; 521-connecting rod; 522-floating ball; 530-alarm; 540-liquid metering bin;

600-Control system.

Implementation

The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. It can be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for convenience of description, only part of the structure related to the present utility model is shown in the drawings instead of the entire structure.

In the description of the present utility model, unless otherwise explicitly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or a detachable connection. Integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the connection of the structures within two elements or the interaction between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly stipulated and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features being in direct contact with each other. Features are not in direct contact but through other features between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this embodiment, the terms "upper", "lower", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplified operation. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and have no special meaning.

3D printers used in the construction field include a mixing device, into which one or more raw materials are transported and thoroughly mixed for 3D printing. The 3D printer in this embodiment is mainly used for printing building structures.

As shown in Figure 1, this embodiment provides a stirring device. The stirring device includes at least one bin 100 for containing raw materials, and the raw materials in each bin 100 can be the same raw material, or they can be different. raw material. The bin 100 is shaped like a funnel, and a feed inlet is provided on the top of the bin 100 . The bottom of the silo 100 is provided with a discharge port.

Preferably, please continue to refer to FIG. 1 . Since the raw material injection and output processes will generate dust, the bin 100 includes a bin body 110 and a cover 120 . The feed inlet is provided on the silo body 110 . The cover plate 120 covers the feed inlet to prevent dust from overflowing from the feed inlet, which is beneficial to ensuring a dust-free and clean production environment.

As shown in Figures 1 and 2, the mixing device also includes a dust removal mechanism 200 provided on the bin 100. A dust removal hole is provided on the upper end surface of the bin 100. The dust removal mechanism 200 includes a dust removal component 210 and a return flow component 220. The dust removal component 210 The dust removal hole is connected to the interior of the silo 100 to recover the dust generated in the silo 100. The dust removal assembly 210 is used to reduce the dust generated during the production process, ensuring a clean environment and benefiting the operator's health. Part of the return assembly 220 extends into the dust removal assembly 210. The return assembly 220 can intermittently blow the dust in the dust removal assembly 210 from the dust removal hole back into the silo 100, so as to automatically clean the dust recovered in the dust removal assembly 210 without any operation. The operator manually cleans the dust. The return assembly 220 blows the dust back to the silo 100 from the dust removal hole, which is conducive to simplifying the structure of the return assembly 220 and realizing raw material recycling, which is conducive to cost saving. Specifically, in order to avoid conflicts between the dust recovery process of the dust removal component 210 and the working process of the return flow component 220, the dust blowing process of the return flow component 220 is set intermittently, which is beneficial to energy saving and emission reduction.

The 3D printer uses the above-mentioned stirring device to facilitate automatic cleaning of the dust recovered in the dust removal assembly 210, thereby reducing the frequency of manual dust cleaning by the operator and improving the effect of energy saving and emission reduction.

The detailed structure of the dust removal assembly 210 will now be described with reference to FIG. 2 . As shown in Figure 2, the dust removal assembly 210 includes a dust removal barrel 211 and a dust removal driving member 212. The dust removal barrel 211 is provided on the dust removal hole. The dust removal driving member 212 is provided at an end of the dust removal barrel 211 away from the dust removal hole. The dust removal driving member 212 can drive dust. Entering the dust removal bucket 211, a larger proportion of the dust generated in the silo 100 enters the dust removal bucket 211, thereby reducing dust release into the production environment, thereby improving the dust removal effect. Further, in order to increase the dust recovery capacity in the dust removal bucket 211 and prevent dust from blocking the entrance of the dust removal bucket 211, a filter element is provided in the dust removal bucket 211, and the filter element is used to absorb dust. At the same time, the filter element can also prevent dust from entering the inside of the dust removal driving component 212, which is beneficial to increasing the service life of the dust removal driving component 212. For example, the dust removal driving member 212 is an induced draft fan, which is a conventional component, has low cost and is easy to purchase.

The detailed structure of the reflow assembly 220 will now be described with reference to FIG. 2 .

As shown in FIG. 2 , the return assembly 220 includes a return pipe 221 and a gas generating device 222 . One end of the return pipe 221 extends into the dust removal assembly 210, that is, a part of the return pipe 221 extends into the dust removal barrel 211. The gas generating device 222 is connected to the other end of the return pipe 221. The gas generating device 222 can pass gas through the return pipe 221. It is blown into the dust removal assembly 210, thereby blowing the dust accumulated in the dust removal bucket 211 of the dust removal assembly 210 back into the silo 100, thereby achieving the dust removal effect and recycling of raw materials, which is beneficial to cost savings. During operation, the gas generating device 222 intermittently blows gas into the return pipe 221 according to a preset time to facilitate energy saving and emission reduction. Illustratively, the gas generating device 222 in this embodiment is a high-pressure tank, used to store high-pressure gas. And a pulse valve is provided between the gas generating device 222 and the return pipe 221, and the pulse valve is used to control the frequency of the return assembly 220 blowing gas into the dust removal barrel 211.

Please continue to refer to Figure 2. In order to ensure the return effect of dust, the return assembly 220 also includes a nozzle 223 disposed at an end of the return pipe 221 away from the gas generating device 222. The nozzle 223 can increase the area for blowing dust, further improving the efficiency of the dust removal assembly 210. The cleaning effect increases the proportion of dust returning to the silo 100, which is beneficial to improving the dust returning effect. Specifically, the nozzle 223 is a reverse nozzle, which is easy to assemble and can achieve a preset spray direction.

As shown in Figures 1 and 3, as an optional solution, the mixing device also includes at least one conveying mechanism 300. The conveying mechanism 300 is arranged in one-to-one correspondence with the silo 100, and the conveying mechanism 300 is used to convey raw materials. For example, the number of bins 100 in this embodiment is two, and two conveying mechanisms 300 are provided accordingly. The specific number of silos 100 and conveying mechanisms 300 is set according to the type of raw materials, which is not limited in this embodiment.

Please continue to refer to Figures 1 and 3. The conveying mechanism 300 includes a conveying drive assembly 310 and a conveying assembly 320. The conveying assembly 320 is connected with the bottom of the silo 100, and is tilted upward at a first angle with the horizontal plane to transport raw materials from the silo. The bottom of 100 is conveyed upward, and the inclined conveying assembly 320 is beneficial to saving the volume of the stirring device. The conveying directions of the conveying driving assembly 310 and the conveying assembly 320 are arranged at a second included angle to facilitate driving the conveying assembly 320 to convey the raw materials. Optionally, the conveying component 320 is a screw feeder to facilitate conveying raw materials from a lower place to a higher place.

Specifically, the second included angle is 90°, which is beneficial to reducing the total length of the conveying mechanism 300 and reducing the height occupied by the conveying drive assembly 310 at the bottom of the bin 100, which is beneficial to ensuring that the height of the bin 100 remains unchanged. The volume of the silo 100 is increased, and the frequency of injecting raw materials into the silo 100 is reduced. When the second included angle is 90°, the conveying driving assembly 310 includes a conveying driving member and a direction converting member, and the direction converting member is connected between the conveying driving member and the conveying assembly 320 to achieve a 90° change in the output direction of the conveying driving member. Of course, in other embodiments, the second included angle may also be 180°. The structure is simple and easy to assemble and maintain.

As shown in Figure 3, as an optional solution, a visual window 321 is provided on the conveying component 320. The visual window 321 is used to observe and repair the conveying component 320, providing convenience for the operator to clean and repair the conveying component 320, and the operator The conveying situation of raw materials inside the conveying assembly 320 can be observed at any time.

As shown in Figure 3, the mixing device also includes a mixing bin 400, which is used to mix raw materials from at least one bin 100. The mixing device also includes a liquid supply assembly 500 that delivers liquid to the mixing chamber 400 . The detailed structure of the liquid supply assembly 500 will now be described with reference to FIGS. 1 , 3 and 4 .

As shown in FIGS. 3 and 4 , the liquid supply assembly 500 includes a liquid supply tank 510 , a liquid level detection component 520 and an alarm 530 . Among them, the liquid supply tank 510 can supply liquid to the mixing bin 400, the liquid level detection part 520 is arranged in the liquid supply tank 510, the liquid level detection part 520 can float on the liquid surface of the liquid, the alarm 530 and the liquid level detection part 520 is connected. When the position of the liquid level detection component 520 exceeds the minimum liquid level or exceeds the maximum liquid level, the alarm 530 can sound an alarm. The liquid supply component 500 does not require manual inspection and replenishing of liquid, which is conducive to simplifying the operator's work process. Illustratively, the liquid in this embodiment is water.

Specifically, the liquid level detection component 520 includes a connecting rod 521 and a floating ball 522. The connecting rod 521 is connected to the alarm 530. The floating ball 522 is provided at an end of the connecting rod 521 away from the alarm 530. The floating ball 522 can float on the liquid surface. , and rises and falls with the level of the liquid. And when the float 522 is at different liquid levels, the angle between the connecting rod 521 and the alarm 530 is different. When the float 522 is too high or too low, the angle between the connecting rod 521 and the alarm 530 will exceed Preset ranges to sound alarms.

As an optional solution, as shown in FIG. 1 , the liquid supply assembly 500 also includes a liquid metering chamber 540 disposed between the liquid supply tank 510 and the mixing chamber 400 . The liquid metering chamber 540 is used to measure the liquid from the liquid supply tank 510 The output liquid volume thereby improves the precision control of raw materials and liquid in the mixing chamber 400.

Further, as shown in Figure 1, the stirring device also includes a control system 600. The control system 600 is electrically connected to the conveying mechanism 300, the dust removal mechanism 200 and the liquid supply component 500, so as to facilitate the control of the conveying mechanism 300, the dust removal mechanism 200 and the liquid supply. Control of component 500.

Note that the basic principles and main features of the present utility model and the advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model. The claimed scope of the utility model is defined by the appended claims and their equivalents.

Claims

A stirring device, characterized in that it includes:

At least one silo (100) for holding raw materials; and

A dust removal mechanism (200) is provided on the silo (100). A dust removal hole is provided on the upper end surface of the silo (100). The dust removal mechanism (200) includes a dust removal component (210) and a reflux component (220). ), the dust removal component (210) communicates with the interior of the silo (100) through the dust removal hole to recover dust in the silo (100), and a part of the return component (220) extends into In the dust removal assembly (210), the return assembly (220) is configured to intermittently blow the dust recovered in the dust removal assembly (210) from the dust removal hole back into the silo (100) .
The stirring device according to claim 1, characterized in that the reflux assembly (220) includes:

Return pipe (221), one end of the return pipe (221) extends into the dust removal assembly (210);

A gas generating device (222) is connected to the other end of the return pipe (221). The gas generating device (222) can blow gas through the return pipe (221) to the dust removal assembly (210). The dust.
The stirring device according to claim 2, characterized in that the reflux assembly (220) further includes:

A nozzle (223) is provided at one end of the return pipe (221) away from the gas generating device (222). The spray direction of the nozzle (223) is the direction in which the dust removal assembly (210) is away from the dust removal hole. Side walls and end faces.
The stirring device according to claim 1, characterized in that the dust removal assembly (210) includes:

A dust removal bucket (211) is provided on the dust removal hole; and

A dust removal driving member (212) is provided at one end of the dust removal barrel (211) away from the dust removal hole. The dust removal driving member (212) is configured to drive the dust into the dust removal barrel (211).
The stirring device according to claim 1, characterized in that, the stirring device further includes:

At least one conveying mechanism (300). The conveying mechanism (300) is arranged in one-to-one correspondence with the silo (100). The conveying mechanism (300) is used to convey the raw materials. The conveying mechanism (300) includes Conveying drive assembly (310) and conveying assembly (320). The conveying assembly (320) is connected with the bottom of the silo (100) and is arranged upward at a first angle with the horizontal plane. The conveying driving assembly (320) is 310) is arranged at a second included angle with the conveying direction of the conveying assembly (320).
The stirring device according to claim 5, characterized in that the second included angle is 90° or 180°.
The stirring device according to claim 5, characterized in that the conveying assembly (320) is provided with a visual window (321), and the visual window (321) is configured to observe and repair the conveying assembly (320). .
The stirring device according to claim 1, characterized in that the stirring device further includes a mixing chamber (400) and a liquid supply component (500), and the liquid supply component (500) includes:

A liquid supply tank (510) capable of supplying liquid to the mixing bin (400);

A liquid level detection member (520) is provided in the liquid supply tank (510), and the liquid level detection member (520) can float on the liquid surface of the liquid; and

The alarm (530) is connected to the liquid level detection part (520). When the position of the liquid level detection part (520) exceeds the minimum liquid level or exceeds the maximum liquid level, the alarm (530) can send out an alarm. alarm.
The stirring device according to claim 1, characterized in that the silo (100) includes:

The silo body (110) is provided with a material inlet; and

Cover plate (120) covers the feed inlet.
A 3D printer, characterized by including the stirring device according to any one of claims 1 to 9.