Pretreatment device for production raw materials of PTFE (Polytetrafluoroethylene) pipe

Abstract

The utility model belongs to the field of pipe machining, and particularly relates to a PTFE pipe production raw material pretreatment device which comprises a bottom plate. The shell is fixedly mounted at the top of the bottom plate; the barrel body is installed in the shell, pipe raw materials are loaded through the barrel body, and the barrel body is composed of a breathable film; the drying assembly comprises a supporting pipe, the supporting pipe is rotationally installed in the middle of the shell, the supporting pipe is sleeved with the barrel, one end of the supporting pipe extends to the outer side of the shell, and an air inlet pipe is arranged at the end of the supporting pipe; the flip cover is hinged to the end part of the shell; the exhaust pipe is fixedly mounted in the middle of the turning cover; according to the pigment drying device, hot air is guided into the cylinder body through the supporting pipe by the air inlet pipe, so that pigment in the cylinder body is fully heated and dried, moisture in the pigment is rapidly evaporated, and the drying effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing, specifically a pretreatment device for raw materials in the production of PTFE pipes. Background Technology

[0002] Polytetrafluoroethylene (PTFE), also known as Teflon, is a high molecular weight polymer polymerized from tetrafluoroethylene monomers. Its chemical formula is (C2F4)n. It exhibits excellent heat and cold resistance and can be used continuously at temperatures ranging from -180 to 260ºC. PTFE pipes are manufactured using PTFE as a raw material. Some PTFE pipes require coloring during manufacturing. Dry or liquid pigments can be mixed with the PTFE polymer and lubricant. Liquid pigments are pre-mixed dry color powders and lubricants. Liquid pigments offer good dispersibility during mixing, but not all applications require them. Dry pigments typically have a large surface area and are prone to moisture absorption. If necessary, they should be dried first, sieved before use, and then mixed with dry PTFE polymer powder, followed by the addition of lubricant.

[0003] Existing technologies typically use drying ovens to dry pigments. However, during use, the pigments are heated unevenly inside and out, resulting in poor overall drying and hindering rapid drying of raw materials, thus leading to low drying efficiency. Therefore, a pretreatment device for raw materials used in the production of PTFE pipes is proposed to address these issues. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problems of inconvenience in drying raw materials located below, difficulty in fully drying raw materials, and poor comprehensiveness of drying, this utility model proposes a pretreatment device for raw materials in the production of PTFE pipes.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a pretreatment device for raw materials in the production of PTFE pipes, comprising:

[0006] Base plate;

[0007] A housing, which is fixedly mounted on top of a base plate;

[0008] A cylindrical body, which is installed inside the shell and through which pipe materials are loaded, is composed of a breathable membrane.

[0009] A drying assembly includes a support tube, which is rotatably mounted in the middle of a housing. A cylindrical body is sleeved on the support tube, and one end of the support tube extends to the outside of the housing and has an air inlet pipe at the end.

[0010] A flip cover, which is hinged to the end of the housing;

[0011] An exhaust pipe is fixedly installed in the middle of the flip cover.

[0012] Preferably, a heating tube is rotatably installed in the middle of the cylinder, and multiple air holes are opened on the side wall of the heating tube. A connecting block is fixed to the end of the outer wall of the cylinder, and the connecting block is slidably sleeved on the support tube. A slot is opened in the middle of the side wall of the connecting block, and a fixing block is fixed on the inner wall of the shell. The fixing block and the slot are interlocked.

[0013] Preferably, a fixing frame is fixed to the outer wall of the end of the housing, a motor is fixedly installed on the outside of the fixing frame, a drive rod is fixed to the output end of the motor, the drive rod is fixedly installed inside the support tube, the end of the drive rod is inserted into the middle square hole at the end of the heating tube, the drive rod is adapted to the square hole, connecting pipes are symmetrically fixed on the side wall of the heating tube, and horizontal pipes are fixed to the ends of the connecting pipes on both sides, and the heating tube, connecting pipes and horizontal pipes are internally connected.

[0014] Preferably, a connecting sleeve is fixed inside the fixing frame, the connecting sleeve is rotatably and sealingly connected to the support tube, and the air intake pipe is fixedly connected to the connecting sleeve.

[0015] Preferably, a filter cartridge is fixed inside the cylindrical body.

[0016] Preferably, a cover plate is installed at the end of the filter cartridge, the cover plate is slidably sleeved on the heating tube, and a magnetic block is fixed on the inner wall of the end of the filter cartridge, the magnetic block and the cover plate attract each other.

[0017] Preferably, a second cover plate is installed between the cylinder and the end of the filter cartridge, the second cover plate is slidably sleeved on the outside of the filter cartridge, and a second magnetic block is fixed between the cylinder and the end of the filter cartridge, the second magnetic block and the second cover plate attract each other.

[0018] Preferably, protrusions are fixed on the outer walls of both the first cover plate and the second cover plate.

[0019] The advantages of this utility model are:

[0020] 1. This utility model introduces hot air into the cylinder through the air inlet pipe and support pipe to heat and dry the pigment inside the cylinder, so that the moisture in the pigment evaporates and is discharged from the exhaust pipe. The drying process can remove excess moisture and ensure that the pigment mixes better with other raw materials.

[0021] 2. This utility model uses a motor to drive a drive rod to rotate, which in turn drives the heating tube to rotate, and in turn drives the connecting tube and the horizontal tube to rotate. The connecting tube and the horizontal tube agitate the pigment inside the cylinder, so that the hot air can fully contact the pigment and improve the drying effect. Furthermore, the hot air can enter between the connecting tube and the horizontal tube, and simultaneously dry the pigment while agitating it, further improving the drying effect. When the connecting tube and the horizontal tube agitate the pigment, they simultaneously sieve the pigment, which can remove unqualified particles from the pigment, ensure the uniformity of the pigment fineness, and prevent large particles or impurities in the pigment powder from affecting the color uniformity and appearance of the tube. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of Example 1;

[0024] Figure 2 This is a partial structural diagram of Example 1;

[0025] Figure 3 This is a cross-sectional view of Embodiment 1;

[0026] Figure 4 Example 1 Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 5 Example 1 Figure 3 Enlarged schematic diagram of the structure at point B.

[0028] In the diagram: 1. Base plate; 2. Shell; 3. Motor; 4. Flip cover; 5. Exhaust pipe; 6. Fixing frame; 7. Cylinder; 8. Connecting block; 9. Slot; 10. Fixing block; 11. Filter cartridge; 12. Support pipe; 13. Drive rod; 14. Connecting sleeve; 15. Air inlet pipe; 16. Connecting pipe; 17. Horizontal pipe; 18. Cover plate one; 19. Cover plate two; 20. Protrusion; 21. Air hole; 22. Heating tube; 23. Magnetic block one; 24. Magnetic block two; 25. Rotating block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1-5 As shown, a pretreatment device for raw materials in the production of PTFE pipes includes:

[0032] Base plate 1;

[0033] Housing 2, which is fixedly installed on the top of the base plate 1;

[0034] Cylinder 7, which is installed inside shell 2, and through which pipe materials are loaded, and cylinder 7 is made of a breathable membrane;

[0035] The drying assembly includes a support tube 12, which is rotatably installed in the middle of the housing 2. The cylinder 7 is sleeved on the support tube 12. One end of the support tube 12 extends to the outside of the housing 2 and is provided with an air inlet pipe 15 at the end. The air inlet pipe 15 is connected to an external heat source, which can be composed of an electric heater and a blower.

[0036] Flip cover 4, which is hinged to the end of housing 2;

[0037] Exhaust pipe 5, which is fixedly installed in the middle of the flip cover 4;

[0038] During operation, the cylinder 7 is supported by the base plate 1 and the shell 2. The shell 2 and the flip cover 4 work together to prevent heat loss during the drying process. Before drying, the dry pigment used to color the PTFE pipe is placed inside the cylinder 7. Hot air is introduced into the cylinder 7 through the support pipe 12 via the air inlet pipe 15 to heat and dry the pigment inside the cylinder 7, so that the moisture in the pigment evaporates and is discharged from the exhaust pipe 5. The drying process can remove excess moisture and ensure that the pigment mixes better with other raw materials.

[0039] A heating tube 22 is rotatably mounted in the middle of the cylinder 7. Multiple air holes 21 are provided on the side wall of the heating tube 22. A connecting block 8 is fixed to the outer end of the cylinder 7. The connecting block 8 is slidably sleeved on the support tube 12. A slot 9 is provided in the middle of the side wall of the connecting block 8. A fixing block 10 is fixed to the inner wall of the shell 2. The fixing block 10 and the slot 9 are interlocked. During operation, by extending the path of the hot air through the heating tube 22, the hot air enters the heating tube 22 from the support tube 12 and is discharged to different positions in the cylinder 7 through the multiple air holes 21, allowing the hot air to quickly cover the inside of the cylinder 7, thereby increasing the drying rate. Furthermore, both the fixing block 10 and the slot 9 are square. The fixing block 10 is inserted into the slot 9 of the connecting block 8 to install the cylinder 7 inside the shell 2, facilitating the assembly and disassembly of the cylinder 7, and thus facilitating the filling and emptying of the dried pigment.

[0040] A fixing frame 6 is fixed to the outer wall of the end of the shell 2. A motor 3 is fixedly installed on the outside of the fixing frame 6. A drive rod 13 is fixed to the output end of the motor 3. The drive rod 13 is fixedly installed inside the support tube 12. The end of the drive rod 13 is inserted into the middle square hole at the end of the heating tube 22. The drive rod 13 is adapted to the square hole. Connecting tubes 16 are symmetrically fixed on the side wall of the heating tube 22. Horizontal tubes 17 are fixed to the ends of the connecting tubes 16 on both sides. The heating tube 22, connecting tubes 16, and horizontal tubes 17 are internally connected. During operation, the motor 3 is started, which drives the drive rod 13 to rotate. The drive rod 13 drives the heating tube 22 to rotate, which in turn drives the connecting tubes 16 and horizontal tubes 17 to rotate. The connecting tubes 16 and horizontal tubes 17 agitate the pigment inside the cylinder 7, so that the hot air can fully contact the pigment and improve the drying effect. Furthermore, the hot air can enter between the connecting tubes 16 and horizontal tubes 17, and while agitating the pigment, it also dries the pigment simultaneously.

[0041] A connecting sleeve 14 is fixed inside the fixing frame 6. The connecting sleeve 14 is rotatably connected to the support tube 12 in a sealed manner. The air inlet pipe 15 is fixedly connected to the connecting sleeve 14. During operation, the end of the support tube 12 is sealed by the connecting sleeve 14 to prevent hot air leakage, and the air inlet pipe 15 can be rotatably connected to the support tube 12 to prevent the air inlet pipe 15 from getting tangled.

[0042] A filter cartridge 11 is fixed inside the cylinder 7 and is located outside the horizontal tube 17. During operation, dry pigment is added inside the filter cartridge 11. When the connecting tube 16 and the horizontal tube 17 agitate the dry pigment, the pigment is simultaneously sieved. This removes unqualified particles from the pigment, ensuring that the pigment has a consistent fineness and preventing large particles or impurities in the pigment powder from affecting the color uniformity and appearance of the pipe.

[0043] A cover plate 18 is installed at the end of the filter cartridge 11. The cover plate 18 is slidably sleeved on the heating tube 22. A magnetic block 23 is fixed on the inner wall of the end of the filter cartridge 11. The magnetic block 23 and the cover plate 18 attract each other. During operation, the cover plate 18 is attracted to the magnetic block 23, and the end of the filter cartridge 11 is sealed by the cover plate 18, which confines the pigment inside the filter cartridge 11, making it convenient to dry the pigment inside the filter cartridge 11. In addition, the cover plate 18 can be removed directly, so that the dried pigment can be poured out of the filter cartridge 11.

[0044] A cover plate 19 is installed between the ends of the cylinder 7 and the filter cartridge 11. The cover plate 19 is slidably sleeved on the outside of the filter cartridge 11. A magnetic block 24 is fixed between the ends of the cylinder 7 and the filter cartridge 11. The magnetic block 24 and the cover plate 19 attract each other. During operation, the cover plate 19 seals the gap between the cylinder 7 and the filter cartridge 11 to prevent pigment leakage. In addition, the cover plate 19 can be removed directly to facilitate the pouring of pigment from the filter cartridge 11.

[0045] Example 2

[0046] Please see Figure 5 As shown in the first embodiment, as another implementation of this utility model, protrusions 20 are fixed on the outer walls of both the first cover plate 18 and the second cover plate 19. During operation, by setting the protrusions 20, the force application points of the first cover plate 18 and the second cover plate 19 are increased, making it easier to remove the first cover plate 18 and the second cover plate 19.

[0047] The working principle is as follows: First, the pigment is loaded into the filter cartridge 11. Then, the cylinder 7 and the filter cartridge 11 are installed together inside the housing 2. Hot air is introduced into the cylinder 7 through the support pipe 12 via the air inlet pipe 15 to heat and dry the pigment inside the cylinder 7, causing the moisture in the pigment to evaporate and be discharged from the exhaust pipe 5. In addition, the motor 3 is started, which drives the drive rod 13 to rotate. The drive rod 13 drives the heating tube 22 to rotate, which in turn drives the connecting pipe 16 and the horizontal pipe 17 to rotate. The connecting pipe 16 and the horizontal pipe 17 agitate the pigment inside the cylinder 7, so that the hot air can fully contact the pigment and improve the drying effect. The hot air can also enter between the connecting pipe 16 and the horizontal pipe 17, simultaneously drying the pigment while agitating it, further improving the drying effect. When the connecting pipe 16 and the horizontal pipe 17 agitate the pigment, the pigment is simultaneously sieved, which can remove unqualified particles in the pigment, ensure the uniformity of the pigment fineness, and prevent large particles or impurities in the pigment powder from affecting the color uniformity and appearance of the pipe.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pretreatment device for raw materials in the production of PTFE pipes, characterized in that: include: Base plate (1); The housing (2) is fixedly installed on the top of the base plate (1); A cylindrical body (7) is installed inside the shell (2) and pipe materials are loaded through the cylindrical body (7). The cylindrical body (7) is made of a breathable membrane. The drying assembly includes a support tube (12), which is rotatably installed in the middle of the housing (2). The cylinder (7) is sleeved on the support tube (12), and one end of the support tube (12) extends to the outside of the housing (2) and is provided with an air inlet pipe (15). A flip cover (4) is hinged to the end of the housing (2); Exhaust pipe (5), which is fixedly installed in the middle of the flip cover (4).

2. The raw material pretreatment device for PTFE pipe production according to claim 1, characterized in that: A heating tube (22) is rotatably installed in the middle of the cylinder (7). Multiple air holes (21) are opened on the side wall of the heating tube (22). A connecting block (8) is fixed at the end of the outer wall of the cylinder (7). The connecting block (8) is slidably sleeved on the support tube (12). A slot (9) is opened in the middle of the side wall of the connecting block (8). A fixing block (10) is fixed on the inner wall of the shell (2). The fixing block (10) and the slot (9) are inserted into each other.

3. The raw material pretreatment device for PTFE pipe production according to claim 2, characterized in that: A fixing frame (6) is fixed to the outer wall of the end of the housing (2). A motor (3) is fixedly installed on the outside of the fixing frame (6). A drive rod (13) is fixed to the output end of the motor (3). The drive rod (13) is fixedly installed inside the support tube (12). The end of the drive rod (13) is inserted into the middle square hole at the end of the heating tube (22). The drive rod (13) is adapted to the square hole. Connecting tubes (16) are symmetrically fixed on the side wall of the heating tube (22). Horizontal tubes (17) are fixed to the ends of the connecting tubes (16) on both sides. The heating tube (22), connecting tubes (16) and horizontal tubes (17) are internally connected.

4. The raw material pretreatment device for PTFE pipe production according to claim 3, characterized in that: The inner side of the fixed frame (6) is fixed with a connecting sleeve (14), the connecting sleeve (14) is sealed and rotatably connected to the support tube (12), and the air inlet pipe (15) is fixedly connected to the connecting sleeve (14).

5. The raw material pretreatment device for PTFE pipe production according to claim 4, characterized in that: A filter cartridge (11) is fixed inside the cylinder (7).

6. The raw material pretreatment device for PTFE pipe production according to claim 5, characterized in that: The filter cartridge (11) is equipped with a cover plate (18) at the end, which is slidably sleeved on the heating tube (22). A magnetic block (23) is fixed on the inner wall of the end of the filter cartridge (11), and the magnetic block (23) and the cover plate (18) attract each other.

7. The raw material pretreatment device for PTFE pipe production according to claim 6, characterized in that: A cover plate two (19) is installed between the ends of the cylinder (7) and the filter cylinder (11). The cover plate two (19) is slidably sleeved on the outside of the filter cylinder (11). A magnetic block two (24) is fixed between the ends of the cylinder (7) and the filter cylinder (11). The magnetic block two (24) and the cover plate two (19) attract each other.

8. The raw material pretreatment device for PTFE pipe production according to claim 7, characterized in that: Both cover plate one (18) and cover plate two (19) have protrusions (20) fixed on their outer walls.

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