Extrusion structure for PTFE fine staple fiber production

Abstract

The utility model relates to the technical field of PTFE (Polytetrafluoroethylene) fine staple fiber production, discloses an extrusion structure for PTFE fine staple fiber production, and solves the problems that existing machine nozzles for PTFE fine staple fiber production are fixedly or semi-fixedly mounted; the problems that materials are easily blocked and the interior of a machine is inconvenient to clean after long-time use, so that the fiber flow velocity is unstable or caking is generated, the quality of a final product is influenced, and the production efficiency is greatly reduced are solved. An extrusion structure for PTFE fine staple fiber production comprises a base, an extrusion assembly is fixedly installed on the upper surface of the base, a charging barrel is fixedly installed on the upper surface of the base, a spray head is movably installed in the charging barrel, a rectangular groove is formed in one side of the base, and a cutting assembly is fixedly installed on the inner wall of the rectangular groove. The effect that the production efficiency is not affected by blockage when the PTFE material is manufactured for a long time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of PTFE fine staple fiber production, in particular to an extrusion structure for PTFE fine staple fiber production. Background Art

[0002] PTFE fine staple fiber is a synthetic fiber made of polytetrafluoroethylene. This fiber can be used to make filter materials for flue gas purification and dust recovery bag filters. However, the existing nozzles of machines made of PTFE fine staple fibers are fixed or semi-fixed. Long-term use not only easily causes material blockage, but also makes it inconvenient to clean the inside of the machine, resulting in unstable fiber flow rate or agglomeration, which will affect the quality of the final product and greatly reduce production efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide an extrusion structure for producing PTFE fine staple fibers. The device is used to work, thereby solving the problem that the nozzles of existing machines for producing PTFE fine staple fibers are all fixed or semi-fixed, which not only easily cause material blockage during long-term use, but also make it inconvenient to clean the inside of the machine, resulting in unstable fiber flow rate or agglomeration, which will affect the quality of the final product and greatly reduce the production efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extrusion structure for producing PTFE fine staple fibers, comprising a base, an extrusion assembly for extruding PTFE material is fixedly installed on the upper surface of the base, a charging barrel is fixedly installed on the upper surface of the base, a nozzle is movably installed inside the charging barrel, a rectangular groove is opened on one side of the base, and a cutting assembly for cutting PTFE material is fixedly installed on the inner wall of the rectangular groove;

[0005] Slide grooves are provided on both sides of the upper surface of the loading barrel, and a shift groove, a clamping groove, a spring groove A and a spring groove B are provided on the inner wall of the loading barrel. The shift groove is connected to the slide groove, the clamping groove is connected to the shift groove, the spring groove A is connected to the clamping groove, and the spring groove B is connected to the spring groove A. A compression spring is fixedly installed inside the spring groove A, a clamping block is fixedly installed at one end of the compression spring, a coil spring is fixedly installed inside the spring groove B, and a top block is fixedly installed at one end of the coil spring.

[0006] Preferably, the extrusion assembly includes a hydraulic cylinder fixedly mounted on the upper surface of the base, a hydraulic rod fixedly mounted on one side of the hydraulic cylinder, and an extrusion plate fixedly mounted on one side of the hydraulic rod.

[0007] Preferably, the cutting assembly includes a fixed plate fixedly mounted on the inner wall of the rectangular groove, a telescopic rod fixedly mounted on the lower surface of the fixed plate, a pressing plate fixedly mounted on the lower surface of the telescopic rod, and a magnetic knife movably mounted inside the pressing plate.

[0008] Preferably, some of the pressing plates are provided with knife grooves, and a magnetic block is fixedly mounted on one side of the pressing plate.

[0009] Preferably, a bottom plate and a support seat are fixedly installed on the upper surface of the base, a conveyor belt is fixedly installed inside the rectangular groove, a discharge slide is fixedly installed on one side of the rectangular groove, and one side of the discharge slide is connected to the upper surface of the base.

[0010] Preferably, a groove is provided on one side of the base, and a movable door is movably installed inside the groove.

[0011] Preferably, a nozzle is fixedly mounted on one side of the nozzle, and sliders are fixedly mounted on both sides of the nozzle, and the nozzle is movably mounted through the sliders and the slide grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model discloses an extrusion structure for producing PTFE fine short filament fibers. The slide block can bring the nozzle into the charging barrel through the sliding groove, and then the nozzle is rotated to allow the slide block to move inside the shifting groove. When the slide block moves through the shifting groove and contacts the block, the nozzle is continuously rotated to allow the slide block to push the block into the spring groove A. At this time, there is no obstruction from the block, and the spiral spring inside the spring groove B will bring the push block to push the slide block into the slot. At this time, the nozzle is installed. Then, the solidified PTFE material is put in from the rear of the charging barrel, and then the extrusion component is started to allow the hydraulic rod to push the PTFE material with the extrusion disk at a uniform speed, so that the PTFE material is extruded from the nozzle. When the PTFE material is extruded, it will be long strip fibers that fall on the surface of the unloading slide plate, and then will be guided to the surface of the conveyor belt. Finally, a cutting component is provided to evenly cut the long strip material fibers into short filament fibers of equal length, so that the production efficiency will not be affected by blockage when the PTFE material is produced for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of a charging barrel of the utility model;

[0016] Figure 3 This is a schematic cross-sectional view of a charging barrel of the utility model;

[0017] Figure 4 It is a schematic diagram of the extrusion assembly of the utility model;

[0018] Figure 5 It is a schematic diagram of the cutting assembly of the utility model.

[0019] In the figure: 1. base; 11. bottom plate; 12. support seat; 13. unloading slide plate; 14. conveyor belt; 15. groove; 16. movable door; 2. extrusion assembly; 21. hydraulic cylinder; 22. hydraulic rod; 23. extrusion plate; 3. charging barrel; 31. slide groove; 32. shift groove; 33. card slot; 34. card block; 35. compression spring; 36. top block; 37. spiral spring; 38. spring slot A; 39. spring slot B; 4. nozzle; 41. slider; 42. nozzle; 5. cutting assembly; 51. fixed plate; 52. telescopic rod; 53. pressure plate; 531. knife slot; 532. magnetic block; 54. magnetic knife; 6. rectangular slot. DETAILED DESCRIPTION

[0020] 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.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1 An extrusion structure for producing PTFE fine staple fibers comprises a base 1, an extrusion assembly 2 for extruding PTFE material is fixedly mounted on the upper surface of the base 1, a loading barrel 3 is fixedly mounted on the upper surface of the base 1, a nozzle 4 is movably mounted inside the loading barrel 3, a rectangular groove 6 is opened on one side of the base 1, and a cutting assembly 5 for cutting PTFE material is fixedly mounted on the inner wall of the rectangular groove 6.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] See also Figure 1-Figure 5, both sides of the upper surface of the charging barrel 3 are provided with slide grooves 31, and the inner wall of the charging barrel 3 is provided with a shifting groove 32, a clamping groove 33, a spring groove A38 and a spring groove B39, the shifting groove 32 is connected to the slide groove 31, the clamping groove 33 is connected to the shifting groove 32, the spring groove A38 is connected to the clamping groove 33, and the spring groove B39 is connected to the spring groove A38, a compression spring 35 is fixedly installed inside the spring groove A38, a clamping block 34 is fixedly installed at one end of the compression spring 35, a coil spring 37 is fixedly installed inside the spring groove B39, and a top block 36 is fixedly installed at one end of the coil spring 37, the nozzle 4 can be disassembled and assembled at will through the slide groove 31, the shifting groove 32 and the clamping groove 33, and the nozzle 4 can be fixed in the charging barrel 3 by the coil spring 37 and the top block 36, when the nozzle 4 is to be taken out, the nozzle 4 is pressed down, and the compression spring 35 will bring the clamping block 34 to push the nozzle 4 out of the clamping groove 33.

[0025] The extrusion assembly 2 includes a hydraulic cylinder 21 fixedly mounted on the upper surface of the base 1, a hydraulic rod 22 fixedly mounted on one side of the hydraulic cylinder 21, and an extrusion plate 23 fixedly mounted on one side of the hydraulic rod 22. The hydraulic rod 22 drives the extrusion plate 23 to extrude the material at a uniform speed.

[0026] The cutting assembly 5 includes a fixed plate 51 fixedly mounted on the inner wall of the rectangular groove 6, a telescopic rod 52 fixedly mounted on the lower surface of the fixed plate 51, a pressing plate 53 fixedly mounted on the lower surface of the telescopic rod 52, and a magnetic knife 54 movably mounted inside the pressing plate 53. The magnetic knife 54 can be reciprocated up and down for cutting through the telescopic rod 52.

[0027] The pressing plate 53 is provided with a knife groove 531 , and a magnetic block 532 is fixedly mounted on one side of the pressing plate 53 . The magnetic knife 54 can be fixed in the knife groove 531 through the magnetic block 532 , and the knife groove 531 can also be used to replace the knife.

[0028] A bottom plate 11 and a support seat 12 are fixedly installed on the upper surface of the base 1, a conveyor belt 14 is fixedly installed inside the rectangular groove 6, and a discharge slide 13 is fixedly installed on one side of the rectangular groove 6. One side of the discharge slide 13 is connected to the upper surface of the base 1. The extruded PTFE material can be guided to the conveyor belt 14 through the discharge slide 13.

[0029] A groove 15 is formed on one side of the base 1 , and a movable door 16 is movably installed inside the groove 15 . The movable door 16 allows a tool to be installed from the groove 15 into the tool groove 531 .

[0030] A nozzle 42 is fixedly installed on one side of the nozzle 4, and sliders 41 are fixedly installed on both sides of the nozzle 4. The nozzle 4 is movably installed with the slide groove 31 through the slider 41. The slider 41 allows the nozzle 4 to be installed inside the charging barrel 3 and then sprayed out from the nozzle 42.

[0031] Specifically, when it is necessary to produce PTFE fine short filaments, the nozzle 4 is first passed through the slide groove 31 into the displacement groove 32. Because the height of the block 34 is the height of the displacement groove 32, and because the top block 36 is initially in the spring groove B39, when the nozzle 4 reaches the displacement groove 32, the nozzle 4 is rotated to allow the slider 41 to squeeze the block 34 into the spring groove A38. At this time, the slider 41 is at the bottom of the groove 33. Because there is no obstruction from the block 34, the top block 36 will push the slider 41 to the top of the groove 33 to fix it firmly. When the nozzle 4 is fixed, the solidified PTFE material is placed from the rear of the loading barrel 3 into the loading barrel 3, and then the nozzle 4 is started. The hydraulic cylinder 21 allows the hydraulic rod 22 to push the PTFE material with the extrusion disk 23 at a constant speed, so that the PTFE material is extruded from the nozzle 42. When the PTFE material is extruded, it will appear in a long strip shape, and then the long strip PTFE material will fall onto the surface of the unloading slide 13. Because the PTFE material is still being pushed, the long strip PTFE material will follow the unloading slide 13 into the surface of the conveyor belt 14, and then the telescopic rod 52 will carry the magnetic knife 54 to cut it at a constant speed, so that the long strip PTFE material becomes uniform PTFE fine short filament fibers, thereby achieving the effect of not affecting production efficiency due to blockage when producing PTFE materials for a long time.

[0032] 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.

[0033] 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. An extrusion structure for producing PTFE fine staple fibers, comprising a base (1), characterized in that: An extrusion assembly (2) for extruding PTFE material is fixedly mounted on the upper surface of the base (1); a loading bucket (3) is fixedly mounted on the upper surface of the base (1); a nozzle (4) is movably mounted inside the loading bucket (3); a rectangular groove (6) is formed on one side of the base (1); a cutting assembly (5) for cutting PTFE material is fixedly mounted on the inner wall of the rectangular groove (6); The upper surface of the charging barrel (3) is provided with a slide groove (31) on both sides, and the inner wall of the charging barrel (3) is provided with a shift groove (32), a clamping groove (33), a spring groove A (38) and a spring groove B (39). The shift groove (32) is connected to the slide groove (31), the clamping groove (33) is connected to the shift groove (32), the spring groove A (38) is connected to the clamping groove (33), and the spring groove B (39) is connected to the spring groove A (38). A compression spring (35) is fixedly installed inside the spring groove A (38), and a clamping block (34) is fixedly installed at one end of the compression spring (35). A coil spring (37) is fixedly installed inside the spring groove B (39), and a top block (36) is fixedly installed at one end of the coil spring (37).

2. The extrusion structure for producing PTFE fine staple fibers according to claim 1, characterized in that: The extrusion assembly (2) comprises a hydraulic cylinder (21) fixedly mounted on the upper surface of the base (1), a hydraulic rod (22) fixedly mounted on one side of the hydraulic cylinder (21), and an extrusion plate (23) fixedly mounted on one side of the hydraulic rod (22).

3. The extrusion structure for producing PTFE fine staple fibers according to claim 1, characterized in that: The cutting assembly (5) comprises a fixing plate (51) fixedly mounted on the inner wall of the rectangular groove (6), a telescopic rod (52) fixedly mounted on the lower surface of the fixing plate (51), a pressing plate (53) fixedly mounted on the lower surface of the telescopic rod (52), and a magnetic blade (54) movably mounted inside the pressing plate (53).

4. The extrusion structure for producing PTFE fine staple fibers according to claim 3, characterized in that: The pressing plate (53) is provided with knife grooves (531) and a magnetic attraction block (532) is fixedly mounted on one side of the pressing plate (53).

5. The extrusion structure for producing PTFE fine staple fibers according to claim 1, characterized in that: A bottom plate (11) and a support seat (12) are fixedly mounted on the upper surface of the base (1), a conveyor belt (14) is fixedly mounted inside the rectangular groove (6), a material discharge slide (13) is fixedly mounted on one side of the rectangular groove (6), and one side of the material discharge slide (13) is connected to the upper surface of the base (1).

6. The extrusion structure for producing PTFE fine staple fibers according to claim 5, characterized in that: A groove (15) is provided on one side of the base (1), and a movable door (16) is movably installed inside the groove (15).

7. The extrusion structure for producing PTFE fine staple fibers according to claim 1, characterized in that: A nozzle (42) is fixedly mounted on one side of the spray head (4), and sliders (41) are fixedly mounted on both sides of the spray head (4). The spray head (4) is movably mounted via the sliders (41) and the slide grooves (31).

Images