Thermoplastic polymer 3D printing feeding equipment

Abstract

The utility model relates to thermoplastic polymer 3D printing feeding equipment, which belongs to the technical field of 3D printing and comprises a box body, the front surface of the box body is of an opening structure and is hinged with a box door, a workbench is fixedly mounted on the inner bottom wall of the box body, a collecting piece capable of collecting waste materials is arranged in the box body, and the box door is hinged with the workbench. And a mechanical arm is rotationally installed on the inner bottom wall of the box body and located on the rear side of the workbench, a printing head is fixedly installed at one end of the mechanical arm, a feeding assembly is arranged on the surface of one side of the box body, and the feeding assembly comprises a storage piece arranged on the inner bottom wall of the box body. According to the thermoplastic polymer 3D printing feeding equipment, the feeding assembly is arranged, and the storage part is arranged between the printing head and the feeding part, when 3D printing is finished, a first melt pump in the storage part continues to work, so that residual materials in a storage box are extracted, and the situation that the materials are left in a discharging box is avoided; and the printing head can discharge residual materials in the material storage box.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a thermoplastic polymer 3D printing feeding device. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer.

[0003] In the 3D printing process, the thermoplastic polymer material is first heated to a molten state and then fed to the print head through a feeding device. In the print head, the molten material is stacked layer by layer according to the preset model structure. This process is carried out at a relatively high temperature to ensure that the material can flow out smoothly and solidify in the predetermined position. As the printing progresses, the newly stacked material will gradually cool and solidify to form the final 3D printed product.

[0004] However, since during the 3D printing process, the material is in a molten state or at least a partially molten state, rather than a completely cooled state, the object is in a flowing liquid state inside the feed tube. At the end of 3D printing, the feeding device needs to continuously supply material during the printing process, and after the printing is completed, the material in the feeding device may not be completely used, resulting in some molten material remaining inside the feed tube or outside the print head. When the material cools and solidifies, it is easy to cause blockage in the feed tube, thereby affecting subsequent printing effects. After each 3D printing, the staff needs to clean the inside of the feed tube and the inside of the print head, which is time-consuming, labor-intensive and too troublesome. Therefore, the present utility model is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a thermoplastic polymer 3D printing feeding device, which has the advantages of avoiding material residues in the inside of the feeding pipe, etc.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermoplastic polymer 3D printing feeding device, comprising a box body, the front side of the box body is an open structure and is hinged with a box door, a workbench is fixedly installed on the inner bottom wall of the box body, a collecting piece for collecting waste is arranged inside the box body, a mechanical arm is rotatably installed on the inner bottom wall of the box body and located at the rear side of the workbench, a print head is fixedly installed on one end of the mechanical arm, and a feeding assembly is arranged on one side surface of the box body.

[0007] The feeding assembly comprises a material storage part arranged on the bottom wall of the box body, a feeding part is arranged on one side surface of the box body, and a water storage part is arranged on one side surface of the box body and located behind the feeding part.

[0008] Furthermore, the material storage component includes a material storage box fixedly installed on the top wall of the box body, a partition is fixedly installed on the inner wall of the material storage box, a first melt pump is arranged on the inner bottom wall of the material storage box and on one side of the partition, the input end of the first melt pump movably passes through the partition, and a material delivery pipe is fixedly installed on the output end of the first melt pump and the other end of the material delivery pipe is connected to the interior of the print head.

[0009] Furthermore, a first water pump is fixedly installed on the inner bottom wall of the storage box and located at the rear side of the first melting pump. The input end of the first water pump movably penetrates the partition. A drain pipe is fixedly installed on the output end of the first water pump and the other end of the drain pipe is connected to the inside of the print head.

[0010] Furthermore, the water storage component includes a water tank fixedly mounted on one side surface of the box body, a water inlet pipe is connected to one side surface of the water tank, a second water pump is fixedly mounted on the upper surface of the water tank, an input end of the second water pump extends to the interior of the water tank, a water pipe is fixedly mounted on the output end of the second water pump and the other end of the water pipe extends to the interior of the box body and is connected to the interior of the storage box.

[0011] Furthermore, the feeding part includes a heating box fixedly mounted on one side surface of the box body, a feeding pipe is connected to one side surface of the heating box, a second melt pump is fixedly mounted on the upper surface of the heating box, an input end of the second melt pump extends to the interior of the heating box, a discharge pipe is fixedly mounted on the output end of the second melt pump and the other end of the discharge pipe extends to the interior of the box body and is connected to the interior of the storage box.

[0012] Furthermore, the collecting component comprises a waste box fixedly mounted on the inner bottom wall of the box body and located on the left side of the workbench, and a recycling box fixedly mounted on the inner bottom wall of the box body and located on the right side of the workbench.

[0013] Furthermore, a square fixing plate is fixedly installed on the inner wall of the recycling box, a groove is opened on the upper surface of the fixing plate, a filter screen is fixedly installed above the fixing plate, and a mounting plate movably inserted in the groove is fixedly installed on the lower surface of the filter screen, and the filter screen is installed above the fixing plate through the mounting plate.

[0014] Compared with the prior art, the utility model provides a thermoplastic polymer 3D printing feeding device, which has the following beneficial effects:

[0015] 1. The thermoplastic polymer 3D printing feeding device is provided with a feeding component and a storage part between the print head and the feeding part. When 3D printing is completed, the first melting pump inside the storage part continues to work, so as to extract the residual material in the storage box, avoiding the material remaining in the discharge box, so that the print head can discharge the residual material in the storage box. By providing a water storage part, the second water pump can transport the water source of the water storage tank, so as to clean the inside of the storage box, avoiding the material from adhering to the inner wall of the storage box. At the same time, the first water pump runs, so as to extract the water source of the storage box, which is convenient for cleaning the inside of the print head, so as to avoid the material remaining in the storage box after the 3D printing is completed, thereby affecting the subsequent printing.

[0016] 2. The thermoplastic polymer 3D printing feeding equipment is provided with a filter net so that when the print head discharges water, the filter net can intercept the materials mixed in the water source, so that the staff can recycle them. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of the box of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the workbench of the utility model;

[0019] Figure 3 This is a top view of the internal structure of the material storage box of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the water storage component and the feeding component of the utility model.

[0021] In the figure: 1. box body; 2. workbench; 3. robotic arm; 4. print head; 5. storage box; 6. partition; 7. first melting pump; 8. first water pump; 9. water storage tank; 10. second water pump; 11. heating box; 12. feed pipe; 13. second melting pump; 14. waste box; 15. recycling box; 16. fixing plate; 17. filter screen; 18. mounting plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 2A thermoplastic polymer 3D printing feeding device in this embodiment includes a box body 1, the front of the box body 1 is an open structure and is hinged with a box door, a workbench 2 is fixedly installed on the inner bottom wall of the box body 1, and a collecting piece for collecting waste is arranged inside the box body 1. A mechanical arm 3 is rotatably installed on the inner bottom wall of the box body 1 and located at the rear side of the workbench 2, a print head 4 is fixedly installed at one end of the mechanical arm 3, and a feeding assembly is arranged on one side surface of the box body 1.

[0024] It should be noted that the robot arm 3 is a prior art, and its specific structure and working principle are not described in detail in this article.

[0025] Example 1: Please refer to Figure 1 , Figure 3 and Figure 4 In this embodiment, the feeding assembly includes a material storage part arranged on the inner bottom wall of the box body 1, a feeding part is arranged on one side surface of the box body 1, and a water storage part is arranged on one side surface of the box body 1 and located behind the feeding part.

[0026] Among them, the material storage part includes a material storage box 5 fixedly installed on the inner top wall of the box body 1, a partition 6 is fixedly installed on the inner wall of the material storage box 5, and a first melt pump 7 is arranged on the inner bottom wall of the material storage box 5 and on one side of the partition 6. The input end of the first melt pump 7 movably passes through the partition 6, and a material delivery pipe is fixedly installed on the output end of the first melt pump 7 and the other end of the material delivery pipe is connected to the inside of the print head 4.

[0027] It should be noted that the melt pump is a positive displacement conveying device, which is mainly used to pressurize and stabilize the high-temperature plastic melt from the extruder and then feed it into the extruder head at a stable flow rate. Its ability to stabilize the melt pressure and flow rate is better than that of various types of extruders. Therefore, in the extrusion molding industry of plastics, resins, and rubber products, such as granulation, film, pipe, sheet and other manufacturing processes, the melt pump has been widely used. The melt pump is a prior art, and its specific structure and working principle will not be described in detail in this article.

[0028] Secondly, the water storage component includes a water tank 9 fixedly mounted on one side surface of the box body 1, a water inlet pipe is connected to one side surface of the water tank 9, a second water pump 10 is fixedly mounted on the upper surface of the water tank 9, the input end of the second water pump 10 extends to the interior of the water tank 9, and a water pipe is fixedly mounted on the output end of the second water pump 10, and the other end of the water pipe extends to the interior of the box body 1 and is connected to the interior of the storage box 5.

[0029] It should be noted that a first water pump 8 is fixedly installed on the inner bottom wall of the storage box 5 and located on the rear side of the first melting pump 7. The input end of the first water pump 8 movably passes through the partition 6. A drain pipe is fixedly installed on the output end of the first water pump 8 and the other end of the drain pipe is connected to the interior of the print head 4.

[0030] In addition, the feeding part includes a heating box 11 fixedly mounted on one side surface of the box body 1, a feeding pipe 12 is connected to one side surface of the heating box 11, a second melt pump 13 is fixedly mounted on the upper surface of the heating box 11, an input end of the second melt pump 13 extends to the interior of the heating box 11, a discharge pipe is fixedly mounted on the output end of the second melt pump 13 and the other end of the discharge pipe extends to the interior of the box body 1 and is connected to the interior of the storage box 5.

[0031] It should be noted that a heating mechanism is provided inside the heating box 11 to heat the material.

[0032] When 3D printing is completed, the second melt pump 13 stops running, and the first melt pump 7 starts running, thereby sucking the material inside the discharge pipe into the storage box 5, avoiding the material remaining inside the discharge pipe. When the first melt pump 7 has finished extracting the material inside the storage box 5, the second water pump 10 starts running, so that the second water pump 10 can transport the water source of the water tank 9, thereby cleaning the inside of the storage box 5. At this time, the first water pump 8 starts running, thereby extracting the water source of the storage box 5, which is convenient for cleaning the inside of the print head 4.

[0033] Example 2: Please refer to Figure 2 In this embodiment, the collecting member includes a waste box 14 fixedly installed on the inner bottom wall of the box body 1 and located on the left side of the workbench 2, and a recycling box 15 fixedly installed on the inner bottom wall of the box body 1 and located on the right side of the workbench 2.

[0034] Among them, a square fixing plate 16 is fixedly installed on the inner wall of the recovery box 15, a groove is opened on the upper surface of the fixing plate 16, a filter screen 17 is fixedly installed above the fixing plate 16, and a mounting plate 18 movably inserted in the groove is fixedly installed on the lower surface of the filter screen 17. The filter screen 17 is installed above the fixing plate 16 through the mounting plate 18.

[0035] By setting up a waste box 14, it is convenient to collect the residual materials of the device, and by setting up a recycling box 15, it is convenient to recycle the water source after cleaning. By setting a filter net 17 in the recycling box 15, when the print head 4 discharges the water source, the filter net 17 can intercept the materials mixed in the water source, so that the staff can recycle this part of the waste.

[0036] The working principle of the above embodiment is as follows: when 3D printing is completed, the second melt pump 13 stops running, while the first melt pump 7 starts running, thereby sucking the material inside the discharge pipe into the storage box 5, avoiding the material remaining inside the discharge pipe. At this time, the robot arm 3 drives the print head 4 to move just above the waste box 14, so that the first melt pump 7 transports the material inside the storage box 5 to the print head 4, and the print head 4 discharges the waste into the waste box 14, thereby collecting the waste. When the waste inside the storage box 5 is discharged, the robot arm 3 drives the print head 4 to move to the top of the waste box 14, so that the waste is collected. The print head 4 moves to the top of the recovery box 15. At this time, the second water pump 10 is running, so that the second water pump 10 can transport the water source of the water storage tank 9, so as to clean the inside of the storage box 5. At this time, the first water pump 8 is running, so as to extract the water source of the storage box 5, which is convenient for cleaning the inside of the print head 4, so that the print head 4 can discharge the water source into the recovery box 15, thereby completing the recovery of the water source. Through the above operation, it is avoided that the material remains in the storage box 5 after the 3D printing is completed, thereby affecting the subsequent printing.

[0037] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermoplastic polymer 3D printing feeding device, comprising a box (1), characterized in that: The front of the box (1) is an open structure and is hinged with a box door. A workbench (2) is fixedly mounted on the inner bottom wall of the box (1). A collecting piece for collecting waste is arranged inside the box (1). A mechanical arm (3) is rotatably mounted on the inner bottom wall of the box (1) and located behind the workbench (2). A print head (4) is fixedly mounted on one end of the mechanical arm (3). A feeding assembly is arranged on a side surface of the box (1); The feeding assembly comprises a material storage part arranged on the inner bottom wall of the box body (1), a feeding part is arranged on one side surface of the box body (1), and a water storage part is arranged on one side surface of the box body (1) and located behind the feeding part.

2. A thermoplastic polymer 3D printing feeding device according to claim 1, characterized in that: The material storage component comprises a material storage box (5) fixedly mounted on the inner top wall of the box body (1); a partition (6) is fixedly mounted on the inner wall of the material storage box (5); a first melting pump (7) is arranged on the inner bottom wall of the material storage box (5) and located on one side of the partition (6); an input end of the first melting pump (7) movably penetrates the partition (6); a material delivery pipe is fixedly mounted on the output end of the first melting pump (7) and the other end of the material delivery pipe is connected to the inside of the print head (4).

3. A thermoplastic polymer 3D printing feeding device according to claim 2, characterized in that: A first water pump (8) is fixedly installed on the inner bottom wall of the material storage box (5) and located at the rear side of the first melting pump (7); the input end of the first water pump (8) movably penetrates the partition (6); a drainage pipe is fixedly installed on the output end of the first water pump (8) and the other end of the drainage pipe is connected to the inside of the print head (4).

4. A thermoplastic polymer 3D printing feeding device according to claim 2, characterized in that: The water storage component comprises a water storage tank (9) fixedly mounted on one side surface of the box body (1), a water inlet pipe being connected to one side surface of the water storage tank (9), a second water pump (10) being fixedly mounted on the upper surface of the water storage tank (9), an input end of the second water pump (10) extending into the interior of the water storage tank (9), and a water delivery pipe being fixedly mounted on the output end of the second water pump (10), the other end of the water delivery pipe extending into the interior of the box body (1) and being connected to the interior of the storage box (5).

5. A thermoplastic polymer 3D printing feeding device according to claim 2, characterized in that: The feeding member comprises a heating box (11) fixedly mounted on one side surface of the box body (1), one side surface of the heating box (11) is connected to a feeding pipe (12), a second melt pump (13) is fixedly mounted on the upper surface of the heating box (11), an input end of the second melt pump (13) extends to the interior of the heating box (11), and a discharge pipe is fixedly mounted on the output end of the second melt pump (13), and the other end of the discharge pipe extends to the interior of the box body (1) and is connected to the interior of the material storage box (5).

6. A thermoplastic polymer 3D printing feeding device according to claim 1, characterized in that: The collecting member comprises a waste box (14) fixedly mounted on the inner bottom wall of the box body (1) and located on the left side of the workbench (2), and a recovery box (15) fixedly mounted on the inner bottom wall of the box body (1) and located on the right side of the workbench (2).

7. A thermoplastic polymer 3D printing feeding device according to claim 6, characterized in that: A square fixing plate (16) is fixedly mounted on the inner wall of the recovery box (15); a groove is formed on the upper surface of the fixing plate (16); a filter screen (17) is fixedly mounted above the fixing plate (16); a mounting plate (18) movably plugged into the groove is fixedly mounted on the lower surface of the filter screen (17); the filter screen (17) is mounted above the fixing plate (16) via the mounting plate (18).

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