Teflon pipe special for 3D printer

Abstract

The utility model relates to the technical field of application of Teflon pipes, and discloses a special Teflon pipe for a 3D printer, which is characterized by comprising a pneumatic door and a tetrafluoroethylene pipe, a limiting clamping ring is clamped on the outer surface of the pneumatic door, the C-shaped opening of the limiting clamping ring is clamped in the middle of the pneumatic door, and the tetrafluoroethylene pipe is clamped in the middle of the pneumatic door. A fixing mechanism is slidably arranged on the outer surface of the tetrafluoroethylene pipe and comprises a slotting ring and a fixing ring, a first inclined circular ring is fixedly arranged on the bottom side of the slotting ring, a threaded clamping groove is formed in the top side of the slotting ring, and a second inclined circular ring is fixedly arranged on the upper portion of the inner wall of the fixing ring. A threaded ring is arranged on the lower portion of the inner wall of the fixing ring, and the first inclined circular ring and the second inclined circular ring are each composed of four arc-shaped pieces. And the stability of connection between the tetrafluoroethylene pipe and the pneumatic door is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Teflon application, in particular to a Teflon tube dedicated to a 3D printer. Background Art

[0002] A 3D printer is a device that uses additive manufacturing technology to build three-dimensional objects by stacking materials layer by layer. Teflon tubing, also known as PTFE tubing, is a high-performance plastic tubing made of polytetrafluoroethylene (PTFE). It has excellent high-temperature resistance, corrosion resistance, non-stick properties, low friction coefficient, and excellent insulation properties, making it widely used in many industrial fields.

[0003] The purpose of existing Teflon tubes installed in 3D printers is to transport printing materials. The properties of the Teflon tubes themselves are used to connect the hot end and the cold end. The commonly used method is usually to connect the Teflon tube to the printer through a pneumatic door. However, since the material feeding tube of the 3D printer needs to be moved frequently during printing, the Teflon tube is prone to loosening after long-term use, thereby affecting the stability of the 3D printer's material feeding. Utility Model Content

[0004] The purpose of the present utility model is to provide a Teflon tube for 3D printers in order to solve the above problems. The first inclined ring and the second inclined ring in the fixing mechanism are used to perform secondary fixation on the Teflon tube fixed in the pneumatic door, thereby improving the connection between the Teflon tube and the pneumatic door.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A Teflon tube for 3D printers, characterized by comprising: a pneumatic door and a tetrafluoroethylene tube, wherein the outer surface of the pneumatic door is clamped with a limit clamping ring, the C-shaped opening of the limit clamping ring is clamped in the middle position of the pneumatic door, and the outer surface of the tetrafluoroethylene tube is slidably provided with a fixing mechanism;

[0007] The fixing mechanism includes a slotted ring and a fixed ring, a first inclined circular ring is fixedly provided on the bottom side of the slotted ring, a threaded slot is provided on the top side of the slotted ring, a second inclined circular ring is fixedly provided on the upper inner wall of the fixed ring, a threaded ring is provided on the lower inner wall of the fixed ring, and the first inclined circular ring and the second inclined circular ring are both composed of four arc-shaped pieces.

[0008] Furthermore, a first hole is formed on the inner side of the fixing ring, and a second hole is formed on the inner side of the slotted ring.

[0009] Furthermore, the threaded ring on the inner wall of the fixing ring is threadably engaged with the threaded groove formed on the top side of the slotted ring.

[0010] Further, the first inclined circular ring has a diameter larger than that of the second inclined circular ring.

[0011] Further, the first inclined circular ring and the second inclined circular ring are both made of Teflon material.

[0012] Further, the inner wall of the second inclined circular ring has a diameter slightly smaller than that of the inner wall of the slotted ring.

[0013] Further, the connecting ring is internally provided with a telescopic clamping ring.

[0014] Further, a gap is left between the connecting ring and the telescopic clamping ring, and the opening of the limiting clamping ring is arranged in the gap, and the limiting clamping ring wraps half of the gap.

[0015] With the above structure, the pneumatic door is directly connected with the printer, and the Teflon tube can be conveniently connected with the printer through the pneumatic door by the staff, when the staff installs the Teflon tube, first, the Teflon tube is inserted into the fixing mechanism, and then the fixing mechanism is moved along the Teflon tube, and after being in contact with the pneumatic door, the fixing mechanism is further pressed into the pneumatic door, so that the first inclined circular ring in the fixing mechanism is clamped into the pneumatic door, then the fixing ring is rotated, the second inclined circular ring in the inner side of the fixing ring is in close contact with the Teflon tube, and the Teflon tube is fixed by the first inclined circular ring at the bottom side of the slotted ring, and the Teflon tube is fixed by the first inclined circular ring at the lower side of the fixing ring and the connection between the pneumatic door and the Teflon tube, and the fixing mechanism also protects the connection between the Teflon tube and the pneumatic door, so that the Teflon tube is not broken in the process of continuous printing and moving of the printer, and the Teflon tube can be conveniently taken out from the pneumatic door for subsequent replacement and maintenance.

[0016] In summary, the fixing mechanism has the advantages that the first inclined circular ring in the fixing mechanism and the pneumatic door can fix the connection between the Teflon tube and the pneumatic door, improve the stability of the Teflon tube after connection, and avoid loosening of the Teflon tube to disconnect the connection.

[0017] The fixing mechanism protects the connection between the Teflon tube and the pneumatic door, avoids breakage of the Teflon tube during use, and avoids the situation that the broken Teflon tube is difficult to take out from the pneumatic door, and facilitates subsequent replacement and maintenance of the Teflon tube. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 is the front view of the present application;

[0020] Figure 2 is the close-to-limiting clamping ring shaft side view of the present application;

[0021] Figure 3 is the far-from-limiting clamping ring shaft side view of the present application;

[0022] Figure 4 is the explosion view of the present application;

[0023] Figure 5 is the separated shaft side view of the fixing mechanism of the present application.

[0024] The following is the explanation of the reference signs:

[0025] 1, pneumatic door; 101, telescopic clamping ring; 102, connecting ring; 2, limiting clamping ring; 3, tetrafluoroethylene pipe; 4, fixing mechanism; 401, slotted ring; 402, fixing ring; 403, first inclined circular ring; 404, threaded slot; 405, first hole; 406, threaded ring; 407, second inclined circular ring; 408, second hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0027] Referring to Figures 1-3 The present application provides a special Teflon pipe for 3D printer, characterized in that it comprises: a pneumatic door 1 and a tetrafluoroethylene pipe 3, the outer surface of the pneumatic door 1 is provided with a limiting clamping ring 2, the limiting clamping ring 2 is clamped at the middle position of the pneumatic door 1, and the outer surface of the tetrafluoroethylene pipe 3 is provided with a fixing mechanism 4.

[0028] Adopting the technical scheme, the pneumatic door 1 is directly connected with the printer, and when the staff installs the tetrafluoroethylene pipe 3, the tetrafluoroethylene pipe 3 is installed in the printer through the pneumatic door 1. When the staff needs to install the tetrafluoroethylene pipe 3 in the printer, the tetrafluoroethylene pipe 3 is first preliminarily fixed through the pneumatic door 1, then the connection part of the tetrafluoroethylene pipe 3 and the pneumatic door 1 is fixed for the first time through the fixing mechanism 4, and the upper part of the tetrafluoroethylene pipe 3 inside the fixing mechanism 4 is fixed for the second time. The tetrafluoroethylene pipe 3 and the fixing mechanism 4 are fixed for the first time. Multiple fixing avoids loosening of the tetrafluoroethylene pipe 3 after long use, which affects the normal operation of the 3D printer.

[0029] Referring to Figure 4 and Figure 5 As shown in the drawings, the fixing mechanism 4 comprises a slotted ring 401 and a fixed ring 402. The first inclined circular ring 403 is fixedly arranged at the bottom side of the slotted ring 401. The threaded slot 404 is formed at the top side of the slotted ring 401. The second inclined circular ring 407 is fixedly arranged on the upper inner wall of the fixed ring 402. The threaded ring 406 is arranged on the lower inner wall of the fixed ring 402. The first inclined circular ring 403 and the second inclined circular ring 407 are both composed of four arc-shaped pieces. The first hole 405 is formed in the inner side of the fixed ring 402. The second hole 408 is formed in the inner side of the slotted ring 401. The threaded ring 406 on the inner wall of the fixed ring 402 is threadedly engaged in the threaded slot 404 formed at the top side of the slotted ring 401. The diameter of the first inclined circular ring 403 is greater than that of the second inclined circular ring 407. The first inclined circular ring 403 and the second inclined circular ring 407 are both made of Teflon material. The inner wall diameter of the second inclined circular ring 407 is slightly smaller than the inner wall diameter of the slotted ring 401.

[0030] After the tetrafluoroethylene pipe 3 and the pneumatic door 1 are connected, the staff moves the fixing mechanism 4 along the tetrafluoroethylene pipe 3 and contacts the pneumatic door 1, then presses the slotted ring 401 downward until it cannot be pressed any more. At this time, the first inclined circular ring 403 at the bottom side of the slotted ring 401 is clamped between the inner wall of the pneumatic door and the outer wall of the tetrafluoroethylene pipe 3, reducing the range of movement of the two. The fixing mechanism 4 is used to fix the tetrafluoroethylene pipe 3 for the first time. Then rotate the fixed ring 402 to make the threaded ring 406 in the inner wall of the fixed ring 402 engage with the threaded slot 404 formed at the top side of the slotted ring 401 and move downward with the fixed ring 402. In the process of moving downward, the second inclined circular ring 407 on the inner wall of the fixed ring 402 is clamped between the inner wall of the slotted ring 401 and the outer wall of the tetrafluoroethylene pipe 3, fixing the position of the slotted ring 401 and reducing the movable range of the slotted ring 401. The fixing mechanism 4 is used to fix the tetrafluoroethylene pipe 3 for the second time. The fixing mechanism 4 improves the firmness between the tetrafluoroethylene pipe 3 and the pneumatic door 1.

[0031] Referring to Figure 4 As shown, the pneumatic door 1 comprises a connecting ring 102, a telescopic clamping ring 101 is arranged in the inner side of the connecting ring 102 and is clamped and connected, a gap is left between the connecting ring 102 and the telescopic clamping ring 101, the opening of the limiting clamping ring 2 is arranged in the gap, and the limiting clamping ring 2 wraps half of the gap.

[0032] In use, the connecting ring 102 is used to be directly connected with the 3D printer, and the telescopic clamping ring 101 is used to fix the tetrafluoroethylene pipe 3, the telescopic clamping ring 101 is longitudinally slid in the connecting ring 102 to realize fixing and unlocking, and when the limiting clamping ring 2 is clamped between the telescopic clamping ring 101 and the connecting ring 102, the telescopic clamping ring 101 cannot be telescoped in the connecting ring 102, so that the pneumatic door 1 fixes the tetrafluoroethylene pipe 3.

[0033] With the above structure, the pneumatic door 1 is directly connected with the printer, so that the staff can connect the Teflon pipe with the printer through the pneumatic door 1. When the staff installs the Teflon pipe, the tetrafluoroethylene pipe 3 is first passed through the fixing mechanism 4, so that the tetrafluoroethylene pipe 3 is clamped in the pneumatic door 1, then the staff moves the fixing mechanism 4 along the tetrafluoroethylene pipe 3, and after the fixing mechanism 4 contacts the pneumatic door 1, the fixing mechanism 4 is further pressed into the pneumatic door 1, so that the first inclined circular ring 403 in the fixing mechanism 4 is clamped into the pneumatic door 1, then the fixed ring 402 is rotated, the screw thread ring 406 on the inner wall of the fixed ring 402 and the screw thread clamping groove 404 in the slotted ring 401 are engaged with each other, the second inclined circular ring 407 on the inner side of the fixed ring 402 is in close contact with the tetrafluoroethylene pipe 3, the first inclined circular ring 403 at the bottom of the slotted ring 401 is used to double-fix the tetrafluoroethylene pipe 3, the first inclined circular ring 403 at the lower side of the fixed ring 402 is used to connect the pneumatic door 1, the tetrafluoroethylene pipe 3 is fixed in multiple ways, and the fixing mechanism 4 also protects the connection between the tetrafluoroethylene pipe 3 and the pneumatic door 1, so that the interface between the tetrafluoroethylene pipe 3 and the pneumatic door 1 is not broken in the continuous printing and moving process of the printer, and the tetrafluoroethylene pipe 3 is conveniently taken out from the pneumatic door 1 for subsequent replacement and maintenance.

[0034] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A Teflon tube dedicated for 3D printers, characterized in that, Include: Pneumatic door (1) and tetrafluoroethylene pipe (3), the outer surface of the pneumatic door (1) is clamped with a limiting clamping ring (2), the limiting clamping ring (2) is clamped in the middle position of the pneumatic door (1), and the outer surface of the tetrafluoroethylene pipe (3) is slidably provided with a fixing mechanism (4); The fixing mechanism (4) comprises a slotted ring (401) and a fixed ring (402), the bottom side of the slotted ring (401) is fixedly provided with a first inclined circular ring (403), the top side of the slotted ring (401) is provided with a threaded clamping groove (404), the inner wall of the fixed ring (402) is fixedly provided with a second inclined circular ring (407) upward, and the inner wall of the fixed ring (402) is provided with a threaded ring (406) downward, the first inclined circular ring (403) and the second inclined circular ring (407) are all composed of four arc-shaped pieces.

2. The PTFE tube for 3D printer according to claim 1, characterized in that: The inner side of the fixed ring (402) is provided with a first hole (405), and the inner side of the slotted ring (401) is provided with a second hole (408).

3. The PTFE tube for 3D printer according to claim 1, characterized in that: The threaded ring (406) of the inner wall of the fixed ring (402) is threadedly engaged in the threaded clamping groove (404) provided on the top side of the slotted ring (401).

4. The PTFE tube for 3D printer according to claim 1, characterized in that: The diameter of the first inclined circular ring (403) is greater than that of the second inclined circular ring (407).

5. The PTFE tube for 3D printer according to claim 1, characterized in that: The first inclined circular ring (403) and the second inclined circular ring (407) are made of Teflon material.

6. The PTFE tube for 3D printer according to claim 1, characterized in that: The inner wall diameter of the second inclined circular ring (407) is slightly smaller than the inner wall diameter of the slotted ring (401).

7. The PTFE tube for 3D printer according to claim 1, wherein: The pneumatic door (1) comprises a connecting ring (102), and the inner side of the connecting ring (102) is slidably clamped with a telescopic clamping ring (101).

8. The PTFE tube for 3D printer according to claim 7, characterized in that: The connecting ring (102) and the telescopic clamping ring (101) are left with a gap, the opening of the limiting clamping ring (2) is arranged in the gap, and the limiting clamping ring (2) wraps half of the gap.

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