CN112870851A - Processing device for polytetrafluoroethylene superfine fibers and using method thereof - Google Patents
Processing device for polytetrafluoroethylene superfine fibers and using method thereof Download PDFInfo
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- CN112870851A CN112870851A CN201911205922.5A CN201911205922A CN112870851A CN 112870851 A CN112870851 A CN 112870851A CN 201911205922 A CN201911205922 A CN 201911205922A CN 112870851 A CN112870851 A CN 112870851A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
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Abstract
The invention discloses a device for processing polytetrafluoroethylene superfine fibers and a using method thereof, wherein the device comprises air expansion shafts, stainless steel grooves, counter-pressure film licker-in, stainless steel counter-pressure rollers and degreasing boxes, wherein the air expansion shafts are arranged side by side, and the number of the air expansion shafts is 2-4; the stainless steel groove is of a rectangular groove body structure, and the air expansion shaft and the counter-pressure film licker-in are respectively arranged on two sides of the stainless steel groove; the counter-pressing film licker-in and the stainless steel counter-pressing roller are arranged in pairs, and the degreasing box is arranged on the side surface of the stainless steel counter-pressing roller; the using method comprises the steps of arranging a membrane belt on an air expansion shaft, arranging polytetrafluoroethylene emulsion in a stainless steel groove, after the membrane belt penetrates through the stainless steel groove, sequentially penetrating through a counter-pressing membrane licker-in and a stainless steel counter-pressing roller, finally entering a degreasing box for degreasing, then sintering, drafting and secondary drafting to obtain a polytetrafluoroethylene drafting belt, mechanically splitting and splitting to prepare fiber bundles, and then curling, sizing and cutting to obtain the polytetrafluoroethylene superfine fiber.
Description
Technical Field
The invention relates to the technical field of polytetrafluoroethylene fiber processing, in particular to a polytetrafluoroethylene superfine fiber processing device and a using method thereof.
Background
The polytetrafluoroethylene has excellent physical and chemical properties, can resist the temperature of-190-260 ℃, has excellent chemical corrosion resistance, and is insoluble in any other chemical solvent except fluoride and molten alkali metal. In recent years, with the development of industry, the air pollution caused by industrial waste gas emission is serious, the air haze treatment strength is increased, and the waste gas emission control requirement is increased. And garbage incineration stations are increasing continuously. The demand for polytetrafluoroethylene fibers is increasing, and the quality requirements for fibers are also increasing.
Polytetrafluoroethylene materials have the property of not melting in a molten state, and thus the fibers cannot be efficiently produced using the conventional "melt spinning process". At present, polytetrafluoroethylene short fibers are generally prepared by a film splitting method represented by a patent ZL 201010558729.2. The conventional polytetrafluoroethylene fiber prepared by the method has larger fineness discrete coefficient. The problem of uneven thickness exists, and the filter material processing has low filtering precision due to uneven lapping caused by uneven fiber thickness.
Patent ZL201310423233.8 discloses a polytetrafluoroethylene superfine fiber, which is prepared into polytetrafluoroethylene fiber with linear density below 1.5dtex by adopting various technical means such as thinning of film belt thickness, encryption of carding pins, acceleration of carding speed and the like on the basis of the conventional film splitting process technology. However, since the carding needles on the carding pinwheel have a rigid mechanical action to cut and open the membrane strip, in this case, the arrangement density of the carding needles is increased, and the rotating speed of the carding pinwheel is increased, only the rigid cutting action of the carding needles on the membrane strip is enhanced, and the broken filament bundles are more easily torn, so that the end breakage rate is increased.
Patent ZL201510275243.0 discloses a polytetrafluoroethylene superfine fiber, which is characterized in that on the basis of the conventional membrane splitting process technology, carding needles are encrypted, the carding speed is accelerated, silicone oil is added for modification, and the obtained polytetrafluoroethylene fiber with 1D linear density has the same defects as patent ZL 201310423233.8.
Patent ZL201610002733.8 discloses a polytetrafluoroethylene membrane cracked short fiber re-opening method and device, and the invention is refined re-opening completed by conventional membrane cracked fiber bundle re-processing. The method needs a plurality of groups of spunlace devices and a spunlace nozzle booster, and the processing cost of the device far exceeds that of the conventional polytetrafluoroethylene processing equipment. The processing cost of the polytetrafluoroethylene fiber is also increased, and if the polytetrafluoroethylene fiber is produced in quantity, the equipment cost input by a processing manufacturer is twice as much as that of the conventional polytetrafluoroethylene fiber processing equipment. But the processing steps are increased by half, and in short, the cost of processing the fibers of this patent is doubled and is not competitive in the market.
Disclosure of Invention
The invention aims to provide a device for processing polytetrafluoroethylene superfine fibers and a using method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a device for processing polytetrafluoroethylene superfine fibers comprises air expansion shafts, stainless steel grooves, counter-pressing film licker-in rollers, stainless steel counter-pressing rollers and a degreasing box, wherein the air expansion shafts are arranged side by side, and the number of the air expansion shafts is 2-4; the stainless steel groove is of a rectangular groove body structure, and the air expansion shaft and the counter-pressure film licker-in are respectively arranged on two sides of the stainless steel groove; the counter-pressing film licker-in and the stainless steel counter-pressing roller are arranged in pairs, the stainless steel counter-pressing roller is arranged on the side face of the counter-pressing film licker-in, and the degreasing box is arranged on the side face of the stainless steel counter-pressing roller.
Preferably, the air expansion shaft is arranged on the magnetic powder tensioner, a film belt is arranged on the air expansion shaft, and the film belt is provided with a deviation rectifying motor and a deviation rectifying instrument.
Preferably, the stainless steel groove is provided with an inner groove, a first steering roller and a second steering roller, and the first steering roller and the second steering roller are arranged in pairs; the two first steering rollers are arranged in the inner groove of the stainless steel groove in parallel, and the two second steering rollers are arranged on the upper portion of the stainless steel groove in parallel.
Preferably, the surface of the counter-pressure film licker-in is uniformly provided with licker-in needles, and the distance between every two adjacent licker-in needles is 1-3 mm; the diameter of the counter-pressing film licker-in is 60-100 mm, and the width of the counter-pressing film licker-in is 100-200 mm.
Preferably, the surface of the stainless steel counter press roll is frosted, the diameter of the stainless steel counter press roll is 100-200mm, and the width of the stainless steel counter press roll is 100-200 mm.
Preferably, a driven shaft is fixed at one end of the stainless steel counter-pressing roller at the lower side, a driving shaft is arranged in a matching manner with the driven shaft, a driving motor is arranged on the driving shaft, and a driving belt is sleeved on the driven shaft and the driving shaft.
Preferably, the driving motor is provided with a frequency converter and a speed reducer, and the power of the motor is 1 kw.
Preferably, the invention also provides a using method of the processing device of the polytetrafluoroethylene superfine fiber, which comprises the following steps,
s1: a membrane belt is arranged on the air expansion shaft, and polytetrafluoroethylene emulsion is arranged in the stainless steel groove; the thickness of the film belt is 0.08-0.15 mm, the width of the film belt is 100-150 mm, and two sides of the film belt are aligned;
s2: the membrane belt respectively passes through the upper part of the first steering roller and the lower part of the second steering roller, so that the membrane belt is immersed in the polytetrafluoroethylene emulsion in the inner groove;
s3: the film belt passes through a gap between the two counter-pressing film licker-in rollers and a gap between the two stainless steel counter-pressing rollers in sequence, and a driving motor of the driving shaft 42 is turned on;
s4: the composite membrane strip processed by the press roller is introduced into a degreasing box for degreasing through stainless steel, wherein the thickness of the composite membrane strip is 0.15-0.25 mm, and the width of the composite membrane strip is 15-25 mm;
s5: sintering, drafting and secondarily drafting the degreased composite membrane belt to form a multi-layer separable polytetrafluoroethylene drafting belt; mechanically splitting and splitting the drafting belt to prepare a fiber bundle, and then performing the processes of curling, sizing and cutting to obtain the polytetrafluoroethylene superfine fiber.
Compared with the prior art, the invention has the beneficial effects that: the multilayer laminated film is effectively held together, and meanwhile, the auxiliary agent of the inner film belt is quickly and effectively volatilized during degreasing; the overlapped film belt passes through a stainless steel counter-pressing roller again, so that the overlapped film belt is calendered again to become 1.2-2 times of the thickness of the single-layer film belt; meanwhile, the film belt also has pores of the mechanical licker-in, so that the mechanical splitting and fiber splitting are easier; and the investment cost is low, the processing efficiency is high, and the fiber fineness discrete coefficient is low.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic view of the inflatable shaft of the present invention;
FIG. 3 is a schematic view of a stainless steel cell of the present invention;
FIG. 4 is a schematic view of a counter-pressure film licker-in of the present invention;
FIG. 5 is a schematic view of a stainless steel counter roll of the present invention;
reference numbers in the figures: 1. an air expansion shaft; 2. a stainless steel tank; 21. an inner tank; 22. a first steering roller; 23. a second turning roll; 3. pressing the film licker-in; 31. pricking a roller needle; 4. a stainless steel counter-pressure roller; 41. a driven shaft; 42. a drive shaft; 43. a transmission belt; 5. and (7) a degreasing box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-5, the present invention provides a technical solution: a device for processing polytetrafluoroethylene superfine fibers comprises air expansion shafts 1, stainless steel grooves 2, counter-pressure film licker-in rollers 3, stainless steel counter-pressure rollers 4 and a degreasing box 5, wherein the air expansion shafts 1 are arranged side by side, and the number of the air expansion shafts 1 is 2-4; the stainless steel groove 2 is of a rectangular groove body structure, and the air expansion shaft 1 and the counter-pressure film licker-in 3 are respectively arranged on two sides of the stainless steel groove 2; the counter-pressure film licker-in 3 and the stainless steel counter-pressure roller 4 are both arranged in pairs, the stainless steel counter-pressure roller 4 is arranged on the side face of the counter-pressure film licker-in 3, and the degreasing box 5 is arranged on the side face of the stainless steel counter-pressure roller 4.
Further, the air expansion shaft 1 is arranged on the magnetic powder tensioner, a film belt is arranged on the air expansion shaft 1, and the film belt is provided with a deviation rectifying motor and a deviation rectifying instrument.
Further, the stainless steel groove 2 is provided with an inner groove 21, a first steering roller 22 and a second steering roller 23, and the first steering roller 22 and the second steering roller 23 are arranged in pairs; two first turning rolls 22 are arranged parallel to each other in the inner trough 21 of the stainless steel trough 2 and two second turning rolls 23 are arranged parallel to each other in the upper part of the stainless steel trough 2.
Further, the surface of the counter-pressure film licker-in 3 is uniformly provided with licker-in needles 31, and the distance between every two adjacent licker-in needles 31 is 1-3 mm; the diameter of the counter-pressing film licker-in 3 is 60-100 mm, and the width of the counter-pressing film licker-in 3 is 100-200 mm.
Further, the surface of the stainless steel counter roll 4 is frosted, the diameter of the stainless steel counter roll 4 is 100-200mm, and the width of the stainless steel counter roll 4 is 100-200 mm.
Further, a driven shaft 41 is fixed at one end of the stainless steel counter roll 4 at the lower side, a driving shaft 42 is arranged in cooperation with the driven shaft 41, a driving motor is arranged on the driving shaft 42, and a transmission belt 43 is sleeved on the driven shaft 41 and the driving shaft 42.
Furthermore, the driving motor is provided with a frequency converter and a speed reducer, and the power of the motor is 1 kw.
Furthermore, gears are arranged at two ends of the stainless steel counter pressure roller 4, and toothed belts on the upper stainless steel counter pressure roller 4 and the lower stainless steel counter pressure roller are meshed with each other.
The working principle is as follows: in the actual use process, a membrane belt is arranged on the inflatable shaft 1, and polytetrafluoroethylene emulsion is arranged in the stainless steel groove 2; the pneumatic expansion shaft 1 is arranged on the magnetic powder tensioner, the pneumatic expansion shaft 1 is provided with a film belt, and the film belt is provided with a deviation rectifying motor and a deviation rectifying instrument and is used for rectifying the layout of the film belt.
The membrane strip passes through the upper part of the first turning roller 22 and the lower part of the second turning roller 23, and is wound on the first turning roller 22 and the second turning roller 23 to be soaked in the polytetrafluoroethylene emulsion in the stainless steel groove 2; the soaked membrane strip sequentially passes through the gaps between the counter-pressing membrane licker-in rollers 3 and the gaps between the stainless steel counter-pressing rollers 4; and (3) performing needling through a needling roller needle 31 and performing secondary rolling on the press roller 4 through stainless steel to obtain the composite film strip.
The composite membrane strip enters a degreasing box 5 for degreasing, and the degreased composite membrane strip is subjected to sintering, drafting and secondary drafting processes to form a multi-layer separable polytetrafluoroethylene drafting strip; mechanically splitting and splitting the drafting belt to prepare a fiber bundle, and then performing the processes of curling, sizing and cutting to obtain the polytetrafluoroethylene superfine fiber. The number of layers of the multi-layer separable polytetrafluoroethylene drafting belts depends on the number of the membrane belts of the inflatable shaft 1, and is specifically 2-4 layers; and finally, the obtained fiber bundles are loosened into superfine fibers with linear density between 1/4-1/2 of the conventional polytetrafluoroethylene fibers under the condition of mechanical force after being opened.
The thickness of the film belt is 0.08-0.15 mm, the width of the film belt is 100-150 mm, two sides of the film belt are aligned in the processing process, and the film belt is regulated and controlled through a deviation rectifying motor and a deviation rectifying instrument; the finally obtained composite membrane strip has the thickness of 0.15-0.25 mm and the width of 15-25 mm.
The stainless steel is used for carrying out frosting treatment on the surface of the compression roller 4, so that secondary rolling is facilitated; the driving motor is provided with a frequency converter and a speed reducer, and the power of the motor is 1 kw; the driving motor drives the driving shaft 42 to rotate, and drives the driven shaft 41 to rotate through the driving belt 43, so as to drive the stainless steel counter-pressing roller 4 below to rotate; the upper stainless steel counter roll and the lower stainless steel counter roll 4 are meshed through gears to carry out transmission; meanwhile, the stainless steel on the upper side is provided with a manual pressing device in the compression roller 4, so that manual control is facilitated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A processing device for polytetrafluoroethylene superfine fibers is characterized in that: the device comprises air expansion shafts (1), stainless steel grooves (2), counter-pressure film licker-in rollers (3), stainless steel counter-pressure rollers (4) and a degreasing box (5), wherein the air expansion shafts (1) are arranged side by side, and the number of the air expansion shafts (1) is 2-4; the stainless steel groove (2) is of a rectangular groove body structure, and the air expansion shaft (1) and the counter-pressure film licker-in (3) are respectively arranged on two sides of the stainless steel groove (2); the counter-pressure film licker-in (3) and the stainless steel counter-pressure roller (4) are arranged in pairs, the stainless steel counter-pressure roller (4) is arranged on the side face of the counter-pressure film licker-in (3), and the degreasing box (5) is arranged on the side face of the stainless steel counter-pressure roller (4).
2. The apparatus for processing polytetrafluoroethylene microfiber according to claim 1, wherein: the pneumatic expansion shaft (1) is arranged on the magnetic powder tensioner, the pneumatic expansion shaft (1) is provided with a film belt, and the film belt is provided with a deviation rectifying motor and a deviation rectifying instrument.
3. The apparatus for processing polytetrafluoroethylene microfiber according to claim 1, wherein: the stainless steel groove (2) is provided with an inner groove (21), a first steering roller (22) and a second steering roller (23), and the first steering roller (22) and the second steering roller (23) are arranged in pairs; two first turning rollers (22) are arranged in parallel in an inner groove (21) of the stainless steel groove (2), and two second turning rollers (23) are arranged in parallel in the upper part of the stainless steel groove (2).
4. The apparatus for processing polytetrafluoroethylene microfiber according to claim 1, wherein: the surface of the counter-pressing film licker-in (3) is uniformly provided with licker-in needles (31), and the distance between every two adjacent licker-in needles (31) is 1-3 mm; the diameter of the counter-pressing film licker-in (3) is 60-100 mm, and the width of the counter-pressing film licker-in (3) is 100-200 mm.
5. The apparatus for processing polytetrafluoroethylene microfiber according to claim 1, wherein: the surface of the stainless steel counter-pressure roller (4) is subjected to frosting treatment, the diameter of the stainless steel counter-pressure roller (4) is 100-200mm, and the width of the stainless steel counter-pressure roller is 100-200 mm.
6. The apparatus for processing polytetrafluoroethylene microfiber according to claim 1, wherein: a driven shaft (41) is fixed at one end of the stainless steel counter-pressure roller (4) at the lower side, a driving shaft (42) is arranged in a matching manner with the driven shaft (41), a driving motor is arranged on the driving shaft (42), and a transmission belt (43) is sleeved on the driven shaft (41) and the driving shaft (42).
7. The apparatus for processing polytetrafluoroethylene microfiber according to claim 6, wherein: the driving motor is provided with a frequency converter and a speed reducer, and the power of the motor is 1 kw.
8. The apparatus for processing polytetrafluoroethylene microfiber according to claim 1, wherein: gears are arranged at two ends of the stainless steel counter-pressing roller (4), and toothed belts on the upper stainless steel counter-pressing roller and the lower stainless steel counter-pressing roller (4) are meshed with each other.
9. The use method of the apparatus for processing polytetrafluoroethylene microfiber according to any one of claims 1 to 8, wherein: comprises the following steps of (a) carrying out,
s1: a membrane belt is arranged on the inflatable shaft (1), and polytetrafluoroethylene emulsion is arranged in the stainless steel groove (2); the thickness of the film belt is 0.08-0.15 mm, the width of the film belt is 100-150 mm, and two sides of the film belt are aligned;
s2: the membrane belts respectively pass through the upper part of the first steering roller (22) and the lower part of the second steering roller (23) so that the membrane belts are immersed in the polytetrafluoroethylene emulsion in the inner groove (21);
s3: the film belt penetrates through a gap between the two counter-pressing film licker-in rollers (3) and a gap between the two stainless steel counter-pressing rollers (4) in sequence, and a driving motor of a driving shaft (42) is turned on;
s4: the composite membrane strip processed by the press roller (4) is introduced into a degreasing box (5) for degreasing through stainless steel, wherein the thickness of the composite membrane strip is 0.15-0.25 mm, and the width of the composite membrane strip is 15-25 mm;
s5: sintering, drafting and secondarily drafting the degreased composite membrane belt to form a multi-layer separable polytetrafluoroethylene drafting belt; mechanically splitting and splitting the drafting belt to prepare a fiber bundle, and then performing the processes of curling, sizing and cutting to obtain the polytetrafluoroethylene superfine fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911205922.5A CN112870851A (en) | 2019-11-29 | 2019-11-29 | Processing device for polytetrafluoroethylene superfine fibers and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911205922.5A CN112870851A (en) | 2019-11-29 | 2019-11-29 | Processing device for polytetrafluoroethylene superfine fibers and using method thereof |
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| CN201911205922.5A Pending CN112870851A (en) | 2019-11-29 | 2019-11-29 | Processing device for polytetrafluoroethylene superfine fibers and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398659A (en) * | 2021-07-16 | 2021-09-17 | 江苏康隆迪超净科技有限公司 | PTFE filter bag filter material processing device for industrial solid waste treatment and use method thereof |
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| CN108928092A (en) * | 2018-07-23 | 2018-12-04 | 昆山博益鑫成高分子材料有限公司 | A kind of UV protective film coating machine |
| CN109652883A (en) * | 2019-01-23 | 2019-04-19 | 江南大学 | Cotton and stainless steel blended the electromagnetic shielding production method of yarn |
| CN209176199U (en) * | 2018-12-19 | 2019-07-30 | 汕头市凹凸包装机械有限公司 | The composite structure of multi-layer co-extruded plastic sheet compounding machine |
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2019
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| CN202849661U (en) * | 2012-09-26 | 2013-04-03 | 泰安市金飞虹织造有限公司 | Jute fiber stretch fine edge treatment device |
| CN107083571A (en) * | 2017-06-15 | 2017-08-22 | 南通大学 | A kind of device and method that ultrashort kraft fibers are extracted from ox-hide leftover pieces |
| CN108928092A (en) * | 2018-07-23 | 2018-12-04 | 昆山博益鑫成高分子材料有限公司 | A kind of UV protective film coating machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113398659A (en) * | 2021-07-16 | 2021-09-17 | 江苏康隆迪超净科技有限公司 | PTFE filter bag filter material processing device for industrial solid waste treatment and use method thereof |
| CN113398659B (en) * | 2021-07-16 | 2023-02-28 | 江苏康隆迪超净科技有限公司 | PTFE filter bag filter material processing device for industrial solid waste treatment and using method thereof |
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