CN110948856B - A raw material recycling and processing device for 3D metal printers - Google Patents

Abstract

The invention discloses a raw material recovery processing device for a 3D metal printer, which comprises a bottom plate and a printing platform, wherein the printing platform is arranged on the upper surface of the bottom plate, a shoveling component is arranged on one side of the printing platform on the upper surface of the bottom plate, the shoveling component comprises a vertical plate, a lead screw is rotatably arranged in the vertical plate, a push plate is rotatably arranged on one side of the lead screw, an electric heating wire is arranged in the push plate, a first motor is fixedly arranged on one side of the vertical plate and is in transmission connection with the lead screw, a collecting barrel is slidably arranged on the bottom surface of the bottom plate, a guide shaft is rotatably arranged in the collecting barrel, a spiral sheet is arranged on the surface of the guide shaft, the outer ring of the spiral sheet is in clearance fit with the inner wall of the collecting barrel, a discharge opening is formed in one side of the bottom of the collecting barrel, a sieve plate is fixedly arranged at the bottom of the discharge opening, one end of the guide shaft is positioned outside the collecting barrel, and is fixedly connected with a third motor, the raw materials are recycled and reused.

Description

A raw material recycling and processing device for 3D metal printers

technical field

The invention belongs to the technical field of 3D printers, and in particular relates to a raw material recycling and processing device for 3D metal printers.

Background technique

Rapid prototyping is a leap in manufacturing technology. It proposes a new thinking mode from the principle of forming and creates a new opportunity for the development of manufacturing technology. Since the idea of additive molding of materials emerged in the early 1980s, researchers have developed a number of rapid prototyping techniques, collectively referred to as 3D printing. Among them, laser curing molding technology is an important one.

The so-called laser curing molding technology is to spray a layer of powdered raw materials first, and then use the high energy of laser irradiation to solidify the powdered raw materials according to the design of the drawing, and repeat this process repeatedly, so that the powdered raw materials are solidified and superimposed layer by layer. Form a 3D solid model.

During the molding process, a part of the powdered raw materials of each layer will be uncured, and these uncured raw materials can be recycled and reused; At this stage, these recycling work is generally done manually, which is time-consuming and labor-intensive.

To this end, we propose a raw material recycling and processing device for 3D metal printers to solve the problems existing in the prior art, so that a set of push plates with heating function are set on the printing platform to remove debris and push them into the printing platform There is a collection cylinder at the bottom, and a spiral roller is installed in the collection cylinder to crush the debris and transfer it into the material barrel for recycling; a conveying platform is set at the bottom of the material basket, and a spring is installed between the material basket and the collection barrel. The electromagnet is convenient for the basket to be collected and output from the printer, saving time and effort.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a raw material recycling and processing device for 3D metal printers, so as to solve the problem that in the prior art in the molding process, a part of the powdery raw materials of each layer will not be cured, and these unsolidified materials will not be cured. The solidified raw materials can be recycled and reused; in addition, during the post-polishing process of the 3D three-dimensional model, some debris will also be generated. At this stage, these recycling tasks are generally done manually, which is time-consuming and labor-intensive.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a raw material recycling and processing device for a 3D metal printer, comprising a bottom plate and a printing platform, the printing platform is arranged on the upper surface of the bottom plate, and the upper surface of the bottom plate is located on one side of the printing platform A shovel assembly is provided;

The shovel assembly includes a vertical plate, a screw rod is rotatably installed in the vertical plate, a push plate is rotatably installed on one side of the screw rod, an electric heating wire is arranged in the push plate, and one side of the vertical plate is fixed A first motor is installed, and the first motor is connected with the lead screw;

A collection cylinder is slidably installed on the bottom surface of the bottom plate, a guide shaft is rotatably installed in the collection cylinder, a helical sheet is arranged on the surface of the guide shaft, and the outer ring of the helical sheet is in clearance fit with the inner wall of the collection cylinder. A discharge port is provided on one side of the bottom, a sieve plate is fixedly installed at the bottom of the discharge port, and one end of the guide shaft is located outside the collecting cylinder and one end is fixedly connected with a third motor;

The bottom of the collecting cylinder is provided with a material basket under the discharge port, two sets of electromagnets are symmetrically arranged on the top of the material basket, and two sets of electromagnets are also fixedly installed at the bottom of the material basket, and the electromagnets are respectively connected with the two sets of electromagnets of the material basket. The top and bottom are fixedly installed with springs;

The material basket is provided with a conveying assembly, and the conveying assembly includes a conveying belt, and conveying shafts are fixedly installed at both ends of the conveying belt, and a second motor is fixedly installed at one end of a group of the conveying shafts.

Preferably, a first synchronous pulley and a second synchronous pulley are fixedly installed on the output shaft end of the first motor and the surface of the screw rod, respectively, and a transmission connection between the first synchronous pulley and the second synchronous pulley is provided. timing belt.

Preferably, a rotating sleeve is rotatably installed in the vertical plate at the position where the screw rod passes through, the rotating sleeve and the screw rod are threadedly connected, and the second synchronous pulley is fixedly installed on one side of the rotating sleeve.

Preferably, a cavity is formed in the push plate, and the electric heating wire is fixedly installed in the cavity through a bracket.

Preferably, two sets of electric sliding tables are symmetrically installed on the bottom surface of the bottom plate, the collecting cylinder is provided with a circular hollow structure, and the top of the collecting cylinder is symmetrically provided with connecting plates, and the two sets of the connecting plates are respectively connected with two sets of electric sliding tables. Fixed connection.

Preferably, iron blocks are installed symmetrically on both sides of the discharge opening at the bottom of the collecting cylinder, and two sets of iron blocks are also fixedly installed on the upper surface of the conveyor belt.

Preferably, a guide assembly is arranged between the push plate and the vertical plate, the guide assembly includes a guide sleeve, a guide shaft is slidably installed in the guide sleeve, and one end of the guide sleeve is fixedly installed on one side of the push plate, so One end of the guide shaft is fixedly installed on one side of the vertical plate.

Preferably, a material guide pipe is fixedly installed on the top of the material basket between the two sets of electromagnets, and the outer diameter of the material guide pipe is larger than the inner diameter of the discharge port.

Preferably, a limit plate is fixedly installed at one end of the screw rod away from the push plate, and the limit plate is fixedly connected to the screw rod through screws.

Technical effects and advantages of the present invention: Compared with the prior art, a raw material recycling and processing device for a 3D metal printer proposed by the present invention has the following advantages:

1. Set up a set of push plates with heating function on the printing platform to remove the debris, push it into the collection cylinder under the printing platform, and set a spiral roller in the collection cylinder to roll the debris and transfer it into the material barrel. recycle;

2. A conveying platform is set at the bottom of the material basket, and a spring-loaded electromagnet is set between the material basket and the collecting cylinder, so that the material basket can be collected and output from the printer, saving time and effort.

Description of drawings

FIG. 1 is a schematic front view of the structure of a raw material recycling and processing device for a 3D metal printer according to the present invention;

FIG. 2 is a schematic cross-sectional structural schematic diagram of the front view of a collecting cylinder of a raw material recycling and processing device for a 3D metal printer according to the present invention;

FIG. 3 is a schematic cross-sectional structural schematic diagram of a side view of a collecting cylinder of a raw material recycling and processing device for a 3D metal printer according to the present invention;

4 is a schematic cross-sectional front view of a shovel assembly of a raw material recycling and processing device for a 3D metal printer according to the present invention;

5 is a schematic top view structural diagram of a conveying assembly of a raw material recycling and processing device for a 3D metal printer according to the present invention;

FIG. 6 is an enlarged schematic structural diagram of part A in FIG. 1 of a raw material recycling and processing device for a 3D metal printer according to the present invention.

In the figure: 1, the bottom plate; 2, the printing platform; 3, the scraper assembly; 301, the vertical plate; 302, the screw rod; 303, the push plate; 304, the electric heating wire; 305, the first motor; 306, the first synchronization Pulley; 307, second timing pulley; 308, timing belt; 309, rotating sleeve; 310, cavity; 311, bracket; 4, collecting cylinder; 5, guide shaft; 6, spiral blade; 7, discharge port ;8, sieve plate; 9, material basket; 10, electromagnet; 11, guide tube; 12, spring; 13, conveying component; 1301, conveyor belt; 1302, conveying shaft; 1303, second motor; 14, electric Sliding table; 15, connecting plate; 16, iron block; 17, guide assembly; 1701, guide sleeve; 1702, guide shaft; 18, limit plate; 19, third motor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The present invention provides a raw material recycling and processing device for a 3D metal printer as shown in Figures 1-6, comprising a base plate 1 and a printing platform 2, the printing platform 2 is arranged on the upper surface of the base plate 1, and the upper surface of the base plate 1 is located on the first surface of the printing platform 2 A shovel assembly 3 is provided on the side.

The shovel assembly 3 includes a vertical plate 301, a screw rod 302 is rotatably installed in the vertical plate 301, a push plate 303 is rotated and installed on one side of the screw rod 302, an electric heating wire 304 is arranged in the push plate 303, and a space is opened in the push plate 303 In the cavity 310, the electric heating wire 304 is fixedly installed in the cavity 310 through the bracket 311, the first motor 305 is fixedly installed on one side of the vertical plate 301, and the rotating sleeve 309 is rotated and installed in the vertical plate 301 at the position where the screw rod 302 passes through. 309 is threadedly connected with the screw rod 302, the second synchronous pulley 307 is fixedly installed on one side of the rotating sleeve 309, the first motor 305 is connected with the screw rod 302 in a transmission, and the output shaft end of the first motor 305 and the surface of the screw rod 302 are respectively fixed and installed There are a first synchronous pulley 306 and a second synchronous pulley 307, a synchronous belt 308 is drivingly connected between the first synchronous pulley 306 and the second synchronous pulley 307, and a guide assembly is provided between the push plate 303 and the vertical plate 301 17. The guide assembly 17 includes a guide sleeve 1701. A guide shaft 1702 is slidably installed in the guide sleeve 1701. One end of the guide sleeve 1701 is fixedly installed on the side of the push plate 303, and one end of the guide shaft 1702 is fixedly installed on the side of the vertical plate 301. A guide assembly is provided. 17. When the screw rod 302 is prevented from rotating, the movement track of the push plate 303 is guaranteed to prevent it from rotating synchronously; the limit plate 18 is fixedly installed at one end of the screw rod 302 away from the push plate 303, and the limit plate 18 is fixedly connected with the screw rod 302 by screws.

A collection cylinder 4 is slidably installed on the bottom surface of the base plate 1, and two sets of electric sliding tables 14 are symmetrically installed on the bottom surface of the base plate 1. The collection cylinder 4 is arranged in a circular hollow structure, and the top of the collection cylinder 4 is symmetrically provided with a connecting plate 15. It is fixedly connected with two sets of electric sliding tables 14. A guide shaft 5 is rotatably installed in the collection cylinder 4. The surface of the guide shaft 5 is provided with a helical sheet 6. The outer ring of the helical sheet 6 fits with the inner wall of the collection cylinder 4. A discharge port 7 is opened on one side, a sieve plate 8 is fixedly installed at the bottom of the discharge port 7, and a sieve plate 8 is set to screen the recovered and rolled raw materials to obtain a particle size that can be recycled; one end of the guide shaft 5 is located at A third motor 19 is fixedly connected to an outer end of the collecting cylinder 4 .

The bottom of the collection cylinder 4 is located below the discharge port 7 and a material basket 9 is arranged. The top of the material basket 9 is symmetrically provided with two sets of electromagnets 10. The bottom of the material basket 9 is also fixedly installed with two sets of electromagnets 10. The electromagnets 10 are respectively connected with the material basket 9. A spring 12 is fixedly installed on the top and bottom of the basket 9, and a material guide pipe 11 is fixedly installed on the top of the basket 9 between the two sets of electromagnets 10. The outer diameter of the material guide pipe 11 is larger than the inner diameter of the discharge port 7, and the electromagnet 10 is activated. , so that the material guide tube 11 is attached to the bottom of the material basket 9 for material receiving.

The material basket 9 is provided with a conveying assembly 13. The conveying assembly 13 includes a conveying belt 1301. A conveying shaft 1302 is fixedly installed at both ends of the conveying belt 1301. One end of a group of conveying shafts 1302 is fixedly installed with a second motor 1303. Iron blocks 16 are installed symmetrically on both sides of the discharge port 7, and two sets of iron blocks 16 are also fixedly installed on the upper surface of the conveyor belt 1301, and the iron blocks 16 are used in cooperation with the electromagnet 10.

Structural principle: A set of push plates 303 with a heating function are arranged on the printing platform 2 to remove the debris on the printing platform 2. Since the printing platform 2 has residues of printed raw materials, the push plates 303 are provided with The electric heating wire 304 heats the push plate 303, which is convenient for scraping. When the first motor 305 is activated, the lead screw 302 can be driven to rotate, thereby driving the push plate 303 to produce a certain displacement, and pushing the debris and residual printing material into the printing material. In the collecting cylinder 4 below the platform 2, and the guide shaft 5 equipped with the helical blade 6 is arranged in the collecting cylinder 4, and the third motor 19 is activated, the crushing and exporting of the debris and the remaining printing materials can be realized automatically. recycle it;

A sieve plate 8 is arranged at the bottom of the discharge port 7, a material basket 9 is arranged at the bottom of the sieve plate 8, and the material basket 9 is fixed between the collecting drum 4 and the conveyor belt 1301 by the electromagnet 10. When unloading, the top of the material basket 9 is activated. After receiving the material, turn off the electromagnet 10 at the top of the material basket 9 and start the electromagnet 10 at the bottom of the material basket 9, start the second motor 1303, and output the material basket 9 to the printing device, which is convenient for the recovery of raw materials. save time and energy.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the The technical solutions described in the foregoing embodiments can be modified, or some technical features thereof can be equivalently replaced, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included. within the protection scope of the present invention.

Claims (8)

1. A raw material recycling and processing device for a 3D metal printer, comprising a bottom plate (1) and a printing platform (2), characterized in that: the printing platform (2) is arranged on the upper surface of the bottom plate (1), and the bottom plate (1) ) a shovel assembly (3) is arranged on the upper surface of the printing platform (2) on one side; The shovel assembly (3) includes a vertical plate (301), a screw rod (302) is rotatably installed in the vertical plate (301), and a push plate (303) is rotatably installed on one side of the screw rod (302), An electric heating wire (304) is arranged in the push plate (303), a first motor (305) is fixedly installed on one side of the vertical plate (301), the first motor (305) and the lead screw (302) Drive connection, the push plate (303) with heating function removes the debris on the printing platform; A guide assembly (17) is arranged between the push plate (303) and the vertical plate (301), the guide assembly (17) includes a guide sleeve (1701), and a guide shaft is slidably installed in the guide sleeve (1701). (1702), one end of the guide sleeve (1701) is fixedly installed on one side of the push plate (303), and one end of the guide shaft (1702) is fixedly installed on one side of the vertical plate (301); A collection cylinder (4) is slidably installed on the bottom surface of the bottom plate (1), a guide shaft (5) is rotatably installed in the collection cylinder (4), and a spiral sheet (6) is arranged on the surface of the guide shaft (5), so The outer ring of the spiral piece (6) is gap-fitted with the inner wall of the collecting cylinder (4), a discharge port (7) is opened on one side of the bottom of the collecting cylinder (4), and the bottom of the discharge port (7) is fixedly installed. There is a sieve plate (8), and a third motor (19) is fixedly connected to one end of the guide shaft (5) outside the collecting cylinder (4); A material basket (9) is arranged below the discharge port (7) of the collecting cylinder (4), and two sets of electromagnets (10) are symmetrically arranged on the top of the material basket (9). A spring (12) is fixedly installed on the top of the set of electromagnets (10) and the material basket (9), and two sets of electromagnets (10) are also fixedly installed at the bottom of the material basket (9). The bottoms of the two sets of electromagnets (10) and the material basket (9) are also fixedly installed with springs (12); The material basket (9) is provided with a conveying assembly (13), the conveying assembly (13) includes a conveying belt (1301), and conveying shafts (1302) are fixedly installed at both ends of the conveying belt (1301), one of which is A second motor (1303) is fixedly installed at one end of the conveying shaft (1302). 2. A raw material recycling and processing device for a 3D metal printer according to claim 1, characterized in that: a first synchronous pulley (306) is fixedly installed on the output shaft end of the first motor (305), and the A second synchronous pulley (307) is fixedly installed on the surface of the screw (302), and a synchronous belt (308) is drivingly connected between the first synchronous pulley (306) and the second synchronous pulley (307). 3. A raw material recycling and processing device for a 3D metal printer according to claim 2, characterized in that: a rotating sleeve (309) is rotatably installed in the vertical plate (301) at the penetration position of the screw (302), so The rotating sleeve (309) and the screw rod (302) are threadedly connected, and the second synchronous pulley (307) is fixedly installed on one side of the rotating sleeve (309). 4. A raw material recycling and processing device for a 3D metal printer according to claim 1, characterized in that: a cavity (310) is opened in the push plate (303), and the electric heating wire (304) passes through a bracket (311) is fixedly installed in the cavity (310). 5. A raw material recycling and processing device for a 3D metal printer according to claim 1, characterized in that: two sets of electric sliding tables (14) are symmetrically installed on the bottom surface of the bottom plate (1), and the collecting cylinder (4) A circular hollow structure is provided, a connecting plate (15) is symmetrically arranged on the top of the collecting cylinder (4), and two groups of the connecting plates (15) are respectively fixedly connected with two groups of electric sliding tables (14). 6. A raw material recycling and processing device for a 3D metal printer according to claim 1, characterized in that: the bottom of the collecting cylinder (4) is symmetrically installed with iron blocks (16) on both sides of the discharge port (7), Two sets of iron blocks (16) are also fixedly installed on the upper surface of the conveyor belt (1301). 7. A raw material recycling and processing device for a 3D metal printer according to claim 1, characterized in that: a material guide pipe (11) is fixedly installed on the top of the material basket (9) between the two sets of electromagnets (10). ), the outer diameter of the material guide pipe (11) is larger than the inner diameter of the discharge port (7). 8. A raw material recycling and processing device for a 3D metal printer according to claim 1, characterized in that: a limiting plate (18) is fixedly installed at one end of the screw (302) away from the push plate (303), and the limiting The position plate (18) is fixedly connected with the lead screw (302) through screws.

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