3D printing raw material stirring device

Abstract

The utility model discloses a 3D printing raw material stirring device. The 3D printing raw material stirring device comprises a stirring tank, and a powder stirring mechanism, a feeding and screening mechanism and a crushing mechanism which are arranged on the stirring tank, the stirring tank comprises a discharging hopper and a plurality of groups of feeding pipes; the powder stirring mechanism comprises a stirring motor, a stirring shaft and stirring blades which are arranged on the stirring tank (100); the feeding screening mechanism comprises a screening net plate arranged below the feeding pipe and a screening toothed plate slidably connected with the upper surface of the screening net plate. And the crushing mechanism comprises a crushing screen, a crushing rotating shaft and a crushing roller. According to the device, large particles in raw materials are screened through the feeding screening mechanism, the screened qualified materials fall into the bottom of the stirring tank and are stirred through stirring blades, the screened unqualified materials are guided into a smashing screen through cooperation of a screening toothed plate and a discharging opening, the materials are smashed through a smashing roller which continuously rotates, and therefore the materials are smashed. And after secondary screening is carried out through the crushing screen, various materials are fully mixed through the stirring blades.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring devices, in particular to a stirring device for 3D printing raw materials. Background Art

[0002] 3D printing is usually achieved by using digital technology material printers. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and later gradually used for the direct manufacturing of some products. There are already parts printed using this technology. This technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields. 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 existing 3D printing work requires mixed printing with multiple metal powder materials as raw materials.

[0003] When using existing 3D printing raw material mixing devices, most of them use a screening mechanism to screen larger particles in the powder and then mix and blend a variety of powder raw materials. The unqualified raw materials screened out need to be crushed by other crushing equipment, and then screened and mixed, resulting in reduced raw material mixing efficiency, which needs to be improved. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: a 3D printing raw material stirring device, comprising a stirring tank and a powder stirring mechanism, a feeding screening mechanism, and a crushing mechanism arranged on the stirring tank;

[0006] The stirring tank comprises a discharge hopper and a plurality of feeding pipes, the discharge hopper is arranged at the bottom of the stirring tank, the bottom end of the discharge hopper is connected to the discharge pipe, and the feeding pipe is arranged at the top of the stirring tank and communicated with the stirring tank;

[0007] The powder stirring mechanism comprises a stirring motor, a stirring shaft and a stirring blade arranged on a stirring tank (100); the stirring motor is installed on the stirring tank, the output end of the stirring motor is connected to the stirring shaft, the stirring blade is arranged on the stirring shaft, and the stirring blade is rotatably installed in the stirring tank;

[0008] The feeding and screening mechanism comprises a screening mesh plate arranged below the feeding pipe, and a screening tooth plate slidably connected to the upper surface of the screening mesh plate, wherein the screening tooth plate is fixed on the stirring shaft; a discharge port for discharging granular raw materials is provided on the screening mesh plate, and a discharge channel is connected to the bottom of the discharge port, and the discharge channel is arranged above the crushing mechanism;

[0009] The pulverizing mechanism includes a pulverizing screen, a pulverizing shaft and a pulverizing roller. The pulverizing screen is arranged below the discharge port and is used to receive the granular raw materials screened out by the screening tooth plate. The pulverizing roller is arranged on the surface of the pulverizing screen. The pulverizing roller is rotatably mounted on the pulverizing shaft, and the pulverizing shaft is fixed on the stirring shaft.

[0010] As a preferred solution of the 3D printing raw material stirring device of the utility model, the bottom end of the feeding pipe is arranged at the front side of the discharge port, and the raw materials screened out by the screening mesh plate enter the discharge port through the rear side of the discharge port.

[0011] As a preferred solution of the 3D printing raw material stirring device of the utility model, wherein: the stirring blades are in an "L"-shaped structure, and two groups of stirring blades are provided, and the two groups of stirring blades are symmetrically arranged on both sides of the stirring shaft.

[0012] As a preferred solution of the 3D printing raw material stirring device of the utility model, the top end of the stirring shaft passes through the crushing screen and the screening mesh plate, and the stirring shaft is rotatably connected with the crushing screen and the screening mesh plate.

[0013] As a preferred solution of the 3D printing raw material stirring device of the utility model, wherein: a plurality of groups of screening racks are arranged at the bottom of the screening tooth plate, and the plurality of groups of screening racks are arranged in a staggered manner.

[0014] As a preferred solution of the 3D printing raw material stirring device described in the utility model, the feeding and screening mechanism also includes a collecting hopper and a material guiding channel. The bottom of the screening mesh is connected to the collecting hopper, the bottom end of the collecting hopper is connected to the material guiding channel, and the bottom end of the material guiding channel is arranged below the crushing screen.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a 3D printing raw material stirring device. When in use, the device introduces a variety of 3D printing raw materials into a stirring tank through a feeding pipe, and then screens the larger particles in the raw materials through a feeding screening mechanism. The screened qualified materials directly fall into the bottom of the stirring tank and are stirred by stirring blades. The screened unqualified materials are introduced into a crushing screen through the cooperation of a screening tooth plate and a discharge port, and the materials are crushed by a continuously rotating crushing roller. After secondary screening through the crushing screen, the materials fall into the bottom of the stirring tank, and the various materials are fully mixed by the stirring blades, so as to achieve the purpose of uniformly stirring the materials. The device has high overall integration, simple equipment structure, and high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0021] Figure 4 For the utility model Figure 3 Schematic diagram of the main structure.

[0022] Figure 5 For the utility model Figure 4 Schematic diagram of the side structure.

[0023] In the figure: 100, mixing tank; 101, discharge hopper; 102, feeding pipe; 103, discharge pipe;

[0024] 200, powder stirring mechanism; 201, stirring motor; 202, stirring shaft; 203, stirring blade;

[0025] 300, feeding and screening mechanism; 301, screening mesh plate; 3011, discharging port; 3012, discharging channel; 302, screening tooth plate; 3021, screening rack; 303, collecting hopper; 304, material guiding channel;

[0026] 400, crushing mechanism; 401, crushing screen; 402, crushing shaft; 403, crushing roller. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Reference Figures 1 to 5 , which is an embodiment of the utility model, provides a 3D printing raw material stirring device, including a stirring tank 100 and a powder stirring mechanism 200, a feeding screening mechanism 300, and a crushing mechanism 400 arranged on the stirring tank 100;

[0032] The mixing tank 100 includes a discharge hopper 101 and a plurality of feeding pipes 102. The discharge hopper 101 is arranged at the bottom of the mixing tank 100. The bottom end of the discharge hopper 101 is connected to the discharge pipe 103. The feeding pipe 102 is arranged at the top of the mixing tank 100 and is connected to the mixing tank 100. The bottom end of the feeding pipe 102 is arranged at the front side of the discharge port 3011, and the raw materials screened out by the screening mesh plate 301 enter the discharge port 3011 through the rear side of the discharge port 3011.

[0033] The powder stirring mechanism 200 comprises a stirring motor 201, a stirring shaft 202 and a stirring blade 203 arranged on a stirring tank (100); the stirring motor 201 is installed on the stirring tank 100, the output end of the stirring motor 201 is connected to the stirring shaft 202, the stirring blade 203 is arranged on the stirring shaft 202, and the stirring blade 203 is rotatably installed in the stirring tank 100; the stirring blade 203 is in an "L"-shaped structure, and two groups of stirring blades 203 are provided, and the two groups of stirring blades 203 are symmetrically arranged on both sides of the stirring shaft 202; the top end of the stirring shaft 202 passes through the crushing screen 401 and the screening mesh plate 301, and the stirring shaft 202 is rotatably connected to the crushing screen 401 and the screening mesh plate 301.

[0034] The feeding and screening mechanism 300 includes a screening mesh plate 301 arranged below the feeding pipe 102, and a screening tooth plate 302 slidably connected to the upper surface of the screening mesh plate 301, and the screening tooth plate 302 is fixed on the stirring shaft 202; the screening mesh plate 301 is provided with a discharge port 3011 for discharging granular raw materials, and the bottom of the discharge port 3011 is connected to a discharge channel 3012, and the discharge channel 3012 is arranged above the crushing mechanism 400; a plurality of groups of screening racks 3021 are arranged at the bottom of the screening tooth plate 302, and the plurality of groups of screening racks 3021 are arranged at staggered intervals; the feeding and screening mechanism 300 also includes a collecting hopper 303 and a material guide channel 304, the bottom of the screening mesh plate 301 is connected to the collecting hopper 303, the bottom end of the collecting hopper 303 is connected to the material guide channel 304, and the bottom end of the material guide channel 304 is arranged below the crushing screen 401.

[0035] The pulverizing mechanism 400 includes a pulverizing screen 401, a pulverizing shaft 402 and a pulverizing roller 403. The pulverizing screen 401 is arranged below the discharge port 3011 and is used to receive the granular raw materials screened out by the screening tooth plate 302. The pulverizing roller 403 is arranged on the surface of the pulverizing screen 401. The pulverizing roller 403 is rotatably mounted on the pulverizing shaft 402, and the pulverizing shaft 402 is fixed on the stirring shaft 202.

[0036] In this embodiment: before using the device, the operator first introduces the raw materials for 3D printing into the mixing tank 100 one by one through the feeding pipe 102 at the top of the mixing tank 100, and the raw materials fall onto the screening mesh plate 301 after entering the mixing tank 100;

[0037] The stirring motor 201 is started, so that the stirring motor 201 drives the stirring shaft 202 to rotate, and the stirring shaft 202 drives the screening tooth plate 302, the crushing shaft 402 and the stirring blade 203 to rotate synchronously, so that the screening tooth plate 302 continuously rotates and stirs the raw materials on the screening mesh plate 301, so that the qualified materials screened out of the raw materials directly fall into the collecting hopper 303, and directly fall into the bottom of the stirring tank 100 through the material guide channel 304, and are stirred by the stirring blade 203;

[0038] The unqualified larger particles of materials screened out are pushed to the discharge port 3011 through the screening tooth plate 302, and are directly introduced into the crushing screen 401 through the discharge channel 3012 after passing through the discharge port 3011. The materials are crushed and crushed by the continuously rotating crushing roller 403 driven by the crushing shaft 402. The crushed granular raw materials are screened for the second time through the crushing screen 401, and then fall into the bottom of the mixing tank 100. The various materials are fully mixed by the mixing blades 203 to achieve the purpose of uniformly mixing the materials. The mixed materials can be discharged through the discharge pipe 103 for standby use.

[0039] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A 3D printing raw material stirring device, characterized in that: It comprises a stirring tank (100), and a powder stirring mechanism (200), a material feeding and screening mechanism (300), and a pulverizing mechanism (400) arranged on the stirring tank (100); The stirring tank (100) comprises a discharge hopper (101) and a plurality of feeding pipes (102), wherein the discharge hopper (101) is arranged at the bottom of the stirring tank (100), the bottom end of the discharge hopper (101) is connected to the discharge pipe (103), and the feeding pipe (102) is connected to the top end of the stirring tank (100); The powder stirring mechanism (200) comprises a stirring motor (201), a stirring shaft (202) and a stirring blade (203) arranged on the stirring tank (100); the output end of the stirring motor (201) is connected to the stirring shaft (202), and the stirring blade (203) is arranged on the stirring shaft (202); The feeding and screening mechanism (300) comprises a screening mesh plate (301) arranged below the feeding pipe (102), and a screening tooth plate (302) slidably connected to the upper surface of the screening mesh plate (301), wherein the screening tooth plate (302) is fixed on the stirring shaft (202); a discharge port (3011) is provided on the screening mesh plate (301), and a discharge channel (3012) is connected to the bottom of the discharge port (3011), and the discharge channel (3012) is arranged above the pulverizing mechanism (400); The pulverizing mechanism (400) comprises a pulverizing screen (401), a pulverizing shaft (402) and a pulverizing roller (403); the pulverizing screen (401) is arranged below the discharge port (3011); the pulverizing roller (403) is arranged on the surface of the pulverizing screen (401); the pulverizing roller (403) is rotatably mounted on the pulverizing shaft (402); and the pulverizing shaft (402) is fixed on the stirring shaft (202).

2. The 3D printing raw material stirring device according to claim 1, characterized in that: The bottom end of the feeding pipe (102) is arranged in front of the discharge port (3011).

3. The 3D printing raw material stirring device according to claim 1, characterized in that: The stirring blades (203) are in an "L"-shaped structure. Two groups of stirring blades (203) are provided, and the two groups of stirring blades (203) are symmetrically arranged on both sides of the stirring shaft (202).

4. The 3D printing raw material stirring device according to claim 1, characterized in that: The top end of the stirring shaft (202) passes through the crushing screen (401) and the screening mesh plate (301), and the stirring shaft (202) is rotatably connected to the crushing screen (401) and the screening mesh plate (301).

5. The 3D printing raw material stirring device according to claim 1, characterized in that: A plurality of groups of screening racks (3021) are arranged at the bottom of the screening tooth plate (302), and the plurality of groups of screening racks (3021) are arranged in a staggered manner.

6. The 3D printing raw material stirring device according to claim 1, characterized in that: The feeding and screening mechanism (300) further comprises a collecting hopper (303) and a material guiding channel (304); the bottom of the screening mesh plate (301) is connected to the collecting hopper (303); the bottom end of the collecting hopper (303) is connected to the material guiding channel (304); the bottom end of the material guiding channel (304) is arranged below the crushing screen (401).

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