CN217839213U - Flash evaporation tractor for preparing superfine fiber and flash evaporation spinning device thereof - Google Patents
Flash evaporation tractor for preparing superfine fiber and flash evaporation spinning device thereof Download PDFInfo
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- CN217839213U CN217839213U CN202221900250.7U CN202221900250U CN217839213U CN 217839213 U CN217839213 U CN 217839213U CN 202221900250 U CN202221900250 U CN 202221900250U CN 217839213 U CN217839213 U CN 217839213U
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- 238000009987 spinning Methods 0.000 title claims abstract description 43
- 239000000835 fiber Substances 0.000 title claims abstract description 42
- 238000001704 evaporation Methods 0.000 title claims description 11
- 230000008020 evaporation Effects 0.000 title claims description 11
- 239000002904 solvent Substances 0.000 claims abstract description 32
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 229920001410 Microfiber Polymers 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000003658 microfiber Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 238000007701 flash-distillation Methods 0.000 description 15
- 229920000642 polymer Polymers 0.000 description 13
- 229920005594 polymer fiber Polymers 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
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- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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Abstract
The utility model discloses a flash tractor for preparing superfine fiber and a flash spinning device thereof.A traction assembly is connected with a guide pipeline extending along the axis of the traction assembly, two pipe orifices of the guide pipeline are communicated with the two ends of the traction assembly in a one-to-one correspondence manner, a compressed air circulation line is arranged in the traction assembly, and a compressed air inlet communicated with the compressed air circulation line is arranged on the traction assembly; there is the direction passageway along its axis link up in the traction head, and the traction head is connected in the one end of pulling the subassembly, and the direction pipeline arranges and communicates with the direction passageway coaxial line simultaneously, and the diameter of direction pipeline is greater than the diameter of direction passageway to be formed with the compressed air inflow clearance of putting through direction passageway and direction pipeline respectively in the switch-on department of direction pipeline and direction passageway, compressed air inflow clearance and compressed air circulation circuit switch-on simultaneously. The utility model discloses the fibre that makes can be thinner, more even, and volatile solvent also can obtain effectual recovery.
Description
Technical Field
The utility model relates to an ultrafine fiber production technical field, more specifically the flash distillation tractor that relates to preparation ultrafine fiber and flash distillation spinning device thereof that says so.
Background
Ultrafine fibers are also known as microfibers, fine fibers, english name microfiber. At present, there is no unified definition for superfine fiber internationally, and the definition of superfine fiber by chemical fiber industry company in textile industry of China is: 0.5 to 1.3dtex of polyester filament; the nylon filament is 0.5 to 1.7dtex; polypropylene filament 0.5-2.2 dtex; short fiber 0.5-1.3 dtex. In the chemical fiber industry of some countries, the fiber with the monofilament density lower than 0.3dtex is generally called superfine fiber, and the regulation is gradually accepted. Therefore, at present, fibers having a fiber fineness of 0.3 denier (diameter of 5 μm) or less are generally called ultrafine fibers, which have excellent properties such as large specific surface area and light weight, and are widely used in various fields such as adsorption filtration, medicine, agriculture and industry.
At present, the flash spinning is a spinning method which utilizes the characteristic that the solubility of a polymer in an organic solvent changes along with the changes of temperature and pressure intensity, when the temperature and the pressure intensity are normal, the solubility of the polymer is low, the temperature and the pressure intensity are increased, the solubility is gradually increased until the polymer is completely dissolved, then a solution is instantly sprayed out of a high-pressure kettle to the outside atmosphere, the high-temperature organic solvent is quickly evaporated and separated out due to the rapid reduction of the pressure intensity, the polymer is separated out, meanwhile, the evaporated solvent forms high-speed airflow, the polymer is drawn, the polymer is lengthened and thinned, and continuous superfine filaments are formed, and the obtained fibers have excellent performance.
However, the existing spinning technology has more designs that the fiber directly reaches the yarn arranging disc through the spray head, namely: at present, a solution formed by mixing a polymer and an organic solvent is directly jetted to a filament swinging disc through a spray head, the solution is quickly evaporated only through the high-temperature organic solvent to be separated out, the polymer is separated out, meanwhile, the evaporated solvent forms high-speed airflow to draw the polymer, so that the polymer is lengthened and thinned to form continuous superfine filament fibers, and other devices special for drawing the polymer are not arranged between the spray head and the filament swinging disc, so that the diameter of the existing fibers is only limited in the current size range, the diameter of the existing fibers cannot be broken through to be smaller again, and the performance of the fibers is limited.
Meanwhile, in the flash spinning process, the evaporated solvent is directly evaporated in the air, so that the air is polluted and the solvent is wasted.
In addition, the problem of uneven spinning thickness still exists in the flash spinning process at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a flash distillation tractor and flash distillation spinning device of preparation superfine fiber aims at solving above-mentioned technical problem at least partially.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, the present invention provides a flash tractor for preparing superfine fibers, comprising:
the traction assembly is internally connected with guide pipelines extending along the axis of the traction assembly, two pipe orifices of the guide pipelines correspondingly penetrate through two ends of the traction assembly one by one, a compressed air circulation line is arranged in the traction assembly, and meanwhile, a compressed air inlet communicated with the compressed air circulation line is arranged on the traction assembly;
the pull head, it has guide channel to link up along its axis in the pull head, just the pull head is connected the one end of pulling the subassembly, simultaneously guide channel with guide channel coaxial line arranges and communicates, just guide channel's diameter is greater than guide channel's diameter, with guide channel's switch-on department is formed with the switch-on respectively the switch-on guide channel with guide channel's compressed air flows in the clearance, simultaneously compressed air flows in clearance and compressed air circulation circuit switch-on.
Preferably, the traction head is in a circular truncated cone shape, a groove communicated with the guide channel is formed in the large-diameter end of the traction head, and meanwhile, the small-diameter end of the traction head is connected to one end of the traction assembly.
Preferably, the pulling assembly comprises:
the limiting sleeve is coaxially sleeved and fixed on the guide pipeline and is close to the traction head, and one end of the limiting sleeve, which is close to the traction head, is arranged at an interval with the traction head;
the first shell is sleeved and fixed on the limiting sleeve, one end, close to the traction head, of the first shell is an open end, one end, far away from the traction head, of the first shell is a closed end, meanwhile, the small-diameter end of the traction head is embedded into the first shell through the open end of the first shell, the open end of the first shell is connected with the outer wall of the limiting sleeve, and a first compressed air circulation cavity is defined through the outer wall of the limiting sleeve, the inner wall of the first shell and one end, close to the traction head, of the limiting sleeve;
meanwhile, the closed end of the first shell and one end, far away from the traction head, of the limiting sleeve are arranged at intervals, a second compressed air circulation cavity is defined by the closed end of the first shell, the inner wall of the first shell and one end, far away from the traction head, of the limiting sleeve, and the compressed air inlet is formed in the first shell and communicated with the second compressed air circulation cavity;
and a plurality of compressed air circulation channels are uniformly arranged on the limiting sleeve at intervals along the circumferential direction of the limiting sleeve, each compressed air circulation channel extends and penetrates along the axial direction of the limiting sleeve, and openings at two ends of each compressed air circulation channel are communicated with the second compressed air circulation cavity and the first compressed air circulation cavity in a one-to-one correspondence manner to form the compressed air circulation line.
Preferably, the pulling assembly further comprises:
the clamping sleeves are of U-shaped strip structures, are close to the first shell and are clamped on the guide pipeline, meanwhile, the open ends of the two clamping sleeves are butted to form a rectangular sleeve, and the closed end of the first shell is respectively fixed at one end, close to the first shell, of each clamping sleeve; a plurality of air outlet holes are formed in the side walls of the guide pipeline in the two jackets in a penetrating manner, a plurality of vacuum grooves are formed in the outer walls of three surfaces of each jacket, a plurality of capillary holes are formed in the inner wall of each jacket, the total number of the capillary holes in the two jackets corresponds to the plurality of air outlet holes one by one, each air outlet hole is communicated with the corresponding capillary hole, and the plurality of capillary holes in each jacket are communicated with all the vacuum grooves in the outer walls of three surfaces of the jacket;
the two positioning plates in the shape of a Chinese character 'kou' are sleeved and fixed outside the two clamp sleeves which are butted together in a one-to-one correspondence manner and are positioned at two ends of the clamp sleeves in a one-to-one correspondence manner;
a rectangular limiting hole is formed in the second shell in a penetrating mode along the length direction of the second shell, the second shell is sleeved on the two positioning plates through the rectangular limiting hole, meanwhile, the inner wall of the second shell, the outer wall of the rectangular sleeve formed by butting the two clamping sleeves and the inner wall of the second shell are limited with a vacuum layer between the two positioning plates, the vacuum layer is communicated with the vacuum grooves in the three side walls of each clamping sleeve respectively, and meanwhile, the vacuum layer is communicated with a solvent recovery storage tank through a solvent recovery pipe;
and the output end of the negative pressure generator is communicated with the vacuum layer.
Preferably, every two adjacent vacuum grooves on each surface of each jacket are communicated through a connecting channel.
Preferably, a plurality of strip-shaped holes are formed in each jacket at equal intervals along the circumferential direction of the guide pipeline, the length of each strip-shaped hole extends along the axial direction of the guide pipeline, and meanwhile, a heating rod extending along the length of each strip-shaped hole is embedded into each strip-shaped hole.
In a second aspect, the present invention provides a flash spinning device for preparing ultrafine fibers, comprising: the device comprises a frame, a spinneret, a flash evaporation tractor, a filament arrangement disc, a driving motor and a lapping device, wherein the flash evaporation tractor is used for preparing superfine fibers according to any one of the embodiments;
the spinning head, the flash tractor and the yarn swinging disc are connected to the rack and are positioned on the same straight line, the flash tractor is positioned between the spinning head and the yarn swinging disc and is arranged at intervals with the spinning head and the yarn swinging disc respectively, one end, far away from the traction assembly, of the traction head of the flash tractor is close to the spraying end of the spinning head, and the flash tractor and the yarn swinging disc are arranged eccentrically;
the driving motor is connected to the rack and connected with the wire swinging disc so as to drive the wire swinging disc to rotate;
and the lapping device is respectively positioned at the bottom ends of the flash tractor and the wire swinging disc at intervals.
According to the above technical solution, compared with the prior art, the utility model discloses a flash distillation tractor and flash distillation spinning device for preparing superfine fiber can realize following technological effect.
The fiber prepared by the flash spinning device for preparing the superfine fiber can be thinner and more uniform, and the volatile solvent can be effectively recovered.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a top view of a flash tractor for making microfiber according to the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a front view of the flash evaporation tractor for preparing ultra fine fibers according to the present invention;
FIG. 4 is a schematic view of the flash tractor for preparing microfiber according to the present invention;
FIG. 5 is an exploded view of the flash evaporation retractor for making ultra fine fibers according to the present invention;
fig. 6 is a schematic structural diagram of a flash spinning device for preparing ultrafine fibers according to the present invention.
Wherein, 1-a traction assembly; 10-a guide pipe; 2-compressed air circulation line; 20-a compressed air inlet; 3-a traction head; 30-a guide channel; 300-compressed air flows into the gap; 4-heating rod; 301-a groove; 11-a stop collar; 12-a first housing; 21-a first compressed air circulation chamber; 22-a second compressed air circulation chamber; 23-compressed air circulation channel; 13-a jacket; 101-air outlet holes; 102-a vacuum tank; 103-capillary pores; 14-positioning plate; 15-a second housing; 104-vacuum layer; 5-a solvent recovery storage tank; 105-a connecting channel; 6-a frame; 61-spinneret; 62-a flash distillation tractor; 63-a wire swinging disc; 64-a drive motor; 65-a lapping device; 66-a brush; 67-ba plate; 68-a baffle; 69-electrostatic filament separating device; 60-a spinning guide channel; 16-negative pressure generator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made 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. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
the embodiment of the utility model discloses preparation superfine fiber's flash distillation tractor, include:
the traction assembly 1 is connected with a guide pipeline 10 extending along the axis of the traction assembly 1, two pipe orifices of the guide pipeline 10 penetrate through two ends of the traction assembly 1 in a one-to-one correspondence manner, a compressed air circulation line 2 is arranged in the traction assembly 1, and a compressed air inlet 20 communicated with the compressed air circulation line 2 is arranged on the traction assembly 1;
the drawing head 3 is characterized in that a guide channel 30 penetrates through the drawing head 3 along the axis of the drawing head 3, the drawing head 3 is connected to one end of the drawing assembly 1, meanwhile, the guide pipeline 10 and the guide channel 30 are coaxially arranged and communicated, the diameter of the guide pipeline 10 is larger than that of the guide channel 30, a compressed air inflow gap 300 which is communicated with the guide channel 30 and the guide pipeline 10 respectively is formed at the communicated position of the guide pipeline 10 and the guide channel 30, and meanwhile, the compressed air inflow gap 300 is communicated with the compressed air circulation line 2.
The utility model adopts the above technical scheme, at the in-process of the imitative silk of flash distillation, place the direction of spouting at the spinning jet (the spinning jet is prior art) with a flash distillation tractor of preparation superfine fiber, and make traction head 3 be close to the spinning jet.
Then, when a spinning solution (the spinning solution is a prior art, that is, a solution formed by dissolving a polymer for spinning in an organic solvent is a spinning solution, and since the spinning solution is a prior art, specific components and proportions thereof are not described herein again), after being sprayed out from a spinneret, pressure is reduced, the solvent is volatilized, and a supersonic flow is generated to stretch the polymer in the spinning solution to form a polymer fiber, and at the same time, the polymer fiber enters the guide channel 30 in the drawing head 3, and since the present application can introduce a compressed gas into the compressed air inlet 20 (specifically, an output end of an electric air pump can be connected to the compressed air inlet 20, so that a high-speed gas flow generated by the electric air pump can be delivered to the compressed air inlet 20), the compressed gas forming a high-speed flow can be sequentially sprayed to the compressed air inflow gap 300 through the compressed air inlet 20 and the compressed air circulation line 2, so that a negative pressure is formed at the connection between the guide channel 10 and the guide channel 30, and the air inflow gap 300 is respectively connected to the guide channel 30 and the guide channel 10, so that the polymer fiber can be further stretched under the action of a negative pressure, and the polymer fiber can be further drawn out from the drawing head 3, so that the diameter of the drawing head can be further reduced.
In order to further optimize the technical scheme, the traction head 3 is in a circular truncated cone shape, the large-diameter end of the traction head 3 is provided with a groove 301 communicated with the guide channel 30, and the small-diameter end of the traction head 3 is connected to one end of the traction assembly 1.
This application adopts above-mentioned technical scheme, because the path end of traction head 3 is connected in the one end of drawing subassembly 1, then the big footpath end of traction head 3 is close to the spinneret that is used for spraying polymer fiber, simultaneously because the big footpath end of traction head 3 sets up the recess 301 that switches on with guide channel 30, then can improve polymer fiber holding capacity in the spinneret to coming from to make the polymer fiber that the spinneret jetted can better enter into to the guide channel 30 of traction head 3.
In order to further optimize the above solution, the traction assembly 1 comprises:
the limiting sleeve 11 is coaxially sleeved and fixed on the guide pipeline 10 and is close to the traction head 3, and one end of the limiting sleeve 11 close to the traction head 3 is arranged at an interval with the traction head 3;
the first shell 12 is sleeved and fixed on the limiting sleeve 11, one end, close to the traction head 3, of the first shell 12 is an open end, one end, far away from the traction head 3, of the first shell 12 is a closed end, meanwhile, the small-diameter end of the traction head 3 is embedded into the first shell 12 through the open end of the first shell 12, the open end of the first shell 12 is connected with the outer wall of the limiting sleeve 11, and a first compressed air circulation cavity 21 is defined through the outer wall of the limiting sleeve 11, the inner wall of the first shell 12 and one end, close to the traction head 3, of the limiting sleeve 11;
meanwhile, the closed end of the first shell 12 and one end of the limiting sleeve 11, which is far away from the traction head 3, are arranged at intervals, a second compressed air circulation cavity 22 is defined by the closed end of the first shell 12, the inner wall of the first shell 12 and one end of the limiting sleeve 11, which is far away from the traction head 3, and a compressed air inlet 20 is arranged on the first shell 12 and communicated with the second compressed air circulation cavity 22;
furthermore, a plurality of compressed air circulation channels 23 are uniformly arranged on the limiting sleeve 11 at intervals along the circumferential direction of the limiting sleeve, each compressed air circulation channel 23 extends and penetrates along the axial direction of the limiting sleeve 11, and openings at two ends of each compressed air circulation channel 23 are communicated with the second compressed air circulation cavity 22 and the first compressed air circulation cavity 21 in a one-to-one correspondence manner to form a compressed air circulation line 2.
By adopting the technical scheme, the high-speed airflow entering from the compressed air inlet 20 sequentially passes through the compressed air inlet 20, the second compressed air circulation cavity 22, the plurality of compressed air circulation channels 23 and the first compressed air circulation cavity 21 to enter the compressed air inflow gap 300, so that negative pressure for drawing and stretching the polymer fibers is formed at the position where the compressed air flows into the gap 300.
In order to further optimize the above solution, the traction assembly 1 further comprises:
the two jackets 13 with the same structure are provided, each jacket 13 is in a U-shaped strip structure, is close to the first shell 12 and is clamped on the guide pipeline 10, meanwhile, the open ends of the two jackets 13 are butted to form a rectangular sleeve, and the closed end of the first shell 12 is respectively fixed at one end of the two jackets 13 close to the first shell 12; a plurality of air outlets 101 are penetrated through the side walls of the guide pipeline 10 in the two jackets 13, a plurality of vacuum grooves 102 are arranged on the three outer walls of each jacket 13, a plurality of capillary holes 103 are arranged on the inner wall of each jacket 13, the total number of the capillary holes 103 on the two jackets 13 corresponds to the plurality of air outlets 101 one by one, each air outlet 101 is communicated with the corresponding capillary hole 103, and the plurality of capillary holes 103 on each jacket 13 are communicated with all the vacuum grooves 102 on the three outer walls;
two positioning plates 14 in the shape of a Chinese character 'kou' are correspondingly sleeved and fixed outside the two clamp sleeves 13 which are butted together one by one and are correspondingly positioned at two ends of the clamp sleeves 13 one by one;
a rectangular limiting hole penetrates through the second shell 15 along the length direction of the second shell 15, the second shell 15 is sleeved on the two positioning plates 14 through the rectangular limiting hole, meanwhile, the inner wall of the second shell 15 and the two clamping sleeves 13 are butted together to form the outer wall of a rectangular sleeve, a vacuum layer 104 is limited between the two positioning plates 14, the vacuum layer 104 is communicated with the vacuum grooves 102 on the three side walls of each clamping sleeve 13 respectively, and meanwhile, the vacuum layer 104 is communicated with the solvent recovery storage tank 5 through a solvent recovery pipe;
a negative pressure generator 16, wherein the output end of the negative pressure generator 16 is connected with the vacuum layer 104.
Specifically, the method comprises the following steps:
the negative pressure generator 16 may be fixed to the second housing 15;
the plurality of air outlet holes 101 may be arranged in 20 rows at every 36 degrees along the circumferential direction of the side wall of the guide duct 10, each row extends along the axial direction of the guide duct 10, and each row is provided with 16 air outlet holes 101, that is, there are 320 air outlet holes 101;
a plurality of capillary holes 103 on each jacket 13 are arranged in a row at 36 degrees along the circumferential direction of the guide pipe 10, the number of rows is 10, each row extends along the axial direction of the guide pipe 10, and at the same time, each row is provided with 16 capillary holes 103, namely, each jacket 13 is provided with 160 capillary holes 103, so that the common 320 capillary holes 103 on the two jackets 13 are correspondingly communicated with the 320 air outlet holes 101 on the guide pipe 10 one by one;
in addition, the plurality of vacuum grooves 102 on each surface of each jacket 13 are arranged in a plurality of rows, and the connecting line of the plurality of vacuum grooves 102 in each row extends along the length direction of the jacket 13, and each vacuum groove 102 on each jacket 13 is respectively communicated with two adjacent capillary holes 103.
This application adopts above-mentioned technical scheme, spinning solution is by the spinneret blowout back, volatile solvent can follow polymer fiber and enter into the guide way 30 in the traction head 3 and draw the guide way 10 in the subassembly 1 in proper order, then polymer fiber is drawn tensile under the negative pressure effect, because the air near vacuum layer 104 forms the negative pressure under the effect of negative pressure generator 16, then produce the adsorption affinity to the solvent, consequently its volatile solvent can loop through a plurality of ventholes 101, a plurality of capillary holes 103 and a plurality of vacuum grooves 102 enter into vacuum layer 104, at last the rethread solvent recovery pipe enters into solvent recovery holding vessel 5, thereby can improve the rate of recovery to the solvent.
Here, in order to allow the volatilized solvent to better enter the solvent recovery storage tank 5 from the vacuum layer 104 through the solvent recovery pipe, a pump connected to the solvent recovery pipe is installed in the solvent recovery storage tank 5.
In order to further optimize the above solution, every two adjacent vacuum grooves 102 on each side of each jacket 13 are connected by a connecting channel 105.
By adopting the technical scheme, the volatilized solvent can circulate in the plurality of vacuum grooves 102 on each surface of each jacket 13, so that the volatilized solvent can be better recovered.
In order to further optimize the above technical scheme, a plurality of strip-shaped holes are uniformly arranged in each jacket 13 along the circumferential direction of the guide duct 10 at intervals, the length of each strip-shaped hole extends along the axial direction of the guide duct 10, and meanwhile, a heating rod 4 extending along the length of each strip-shaped hole is embedded and connected in each strip-shaped hole.
This application adopts above-mentioned technical scheme, the solvent can absorb a large amount of heats at the in-process that volatilizees, then heating rod 4 can supply the lost heat of system, with the balance that can maintain the system temperature, thereby improve the homogeneity of preparation fibre thickness (solvent evaporation heat absorption, ambient temperature reduces, volatilize to back spun dope solvent and produce the influence, the dope receives the air current that the solvent volatilizees and produces and stretches the formation fibre, the solvent volatilizees and produces the influence to the air current, and then form the influence to the fibre, the concurrent heating of heating rod makes the air current more stable, thereby make the fibre more even.
Wherein, the heating rod 4 is the prior art, and the structure and the using method thereof are not described herein again.
Example 2:
the embodiment of the utility model discloses preparation superfine fiber's flash distillation spinning equipment, include: the device comprises a frame 6, a spinneret 61, a flash tractor 62, a swinging disc 63, a driving motor 64 and a lapping device 65, wherein the flash tractor 62 is the flash tractor for preparing superfine fibers provided by the embodiment 1;
the spinning nozzle 61, the flash tractor 62 and the yarn swinging disc 63 are connected to the frame 6 and located on the same straight line, the flash tractor 62 is located between the spinning nozzle 61 and the yarn swinging disc 63 and respectively arranged at intervals with the spinning nozzle 61 and the yarn swinging disc 63, meanwhile, one end, far away from the traction assembly 1, of the traction head 3 of the flash tractor 62 is close to the spraying end of the spinning nozzle 61, and the flash tractor 62 and the yarn swinging disc 63 are arranged eccentrically;
the driving motor 64 is connected to the frame 6 and connected to the wire swinging disc 63 to drive the wire swinging disc 63 to rotate;
the lapping device 65 is respectively arranged at the bottom ends of the flash evaporation tractor 62 and the silk swinging disk 63 at intervals.
Wherein, the frame 6, the spinneret 61, the swing disc 63, the driving motor 64 and the lapping device 65 are all the prior art, and are not described herein again.
This application adopts above-mentioned technical scheme, spinneret 61 is with the spinning solution blowout back, polymer fiber that forms outside flash distillation tractor 62 gets into flash distillation tractor 62 after, can put silk dish 63 and block after coming out from the port that leading head 3 was kept away from to guiding pipeline 10 after being drawn tensile by flash distillation tractor 62, it rotates under driving motor 64 to put silk dish 63 simultaneously, then under the cooperation of putting silk dish 63, polymer fiber is drawn tensile back by flash distillation tractor 62 and is kept away from the port of leading head 3 from guiding pipeline 10 and come out, then can drop on lapping device 65, then lapping device 65 can carry away the final fibre that forms.
The fiber prepared by the flash spinning device for preparing the superfine fiber can be thinner and more uniform, and the volatile solvent can be effectively recovered.
The utility model provides a be connected with brush 66 in the frame 6, and brush 66 contacts with the quotation of pendulum silk dish 63 to at pendulum silk dish 63 pivoted in-process, debris on the pendulum silk dish 63 can be cleared up by brush 66.
The bottom of pendulum silk dish 63 of this application is connected with baffle 68 through cake board 67, it divides silk device 69 to be connected with static on the frame 6 simultaneously (static divides silk device 69 to be prior art), and static divides silk device 69 to be located the exit end of flash tractor 62 (the one end of traction assembly 1 keeping away from traction head 3) the below, and respectively with pendulum silk dish 63, cake board 67 and baffle 68 are injectd and are had spinning guide way 60, then many fibers that come out from flash tractor 62 are combed into the separation state under the effect of static divides silk device 69, and fall to lapping device 65 on through guide way 60, then can improve fibrous output efficiency.
In addition, the structure of the present invention which is not described is the prior art.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A flash tractor for preparing superfine fibers, which is characterized by comprising:
the traction assembly (1) is connected with a guide pipeline (10) extending along the axis of the traction assembly (1), two pipe orifices of the guide pipeline (10) are communicated with two ends of the traction assembly (1) in a one-to-one correspondence manner, a compressed air circulation line (2) is arranged in the traction assembly (1), and meanwhile, a compressed air inlet (20) communicated with the compressed air circulation line (2) is arranged on the traction assembly (1);
pull head (3), it has direction passageway (30) to link up along its axis in pull head (3), just pull head (3) and connect the one end of pulling subassembly (1), simultaneously direction pipeline (10) with direction passageway (30) coaxial line is arranged and is communicate, just the diameter of direction pipeline (10) is greater than the diameter of direction passageway (30), with direction pipeline (10) with the switch-on department of direction passageway (30) is formed with the switch-on respectively direction passageway (30) with the compressed air of direction pipeline (10) flows in clearance (300), simultaneously compressed air flows in clearance (300) and compressed air circulation line (2) switch-on.
2. The flash evaporation tractor for preparing superfine fibers according to claim 1, wherein the traction head (3) is in a circular truncated cone shape, a groove (301) communicated with the guide channel (30) is formed in a large-diameter end of the traction head (3), and a small-diameter end of the traction head (3) is connected to one end of the traction assembly (1).
3. The flash tractor for making microfibres according to claim 2, characterized in that said traction assembly (1) comprises:
the limiting sleeve (11) is coaxially sleeved and fixed on the guide pipeline (10) and is close to the traction head (3), and one end, close to the traction head (3), of the limiting sleeve (11) is arranged at an interval with the traction head (3);
the first shell (12) is sleeved and fixed on the limiting sleeve (11), one end, close to the traction head (3), of the first shell (12) is an open end, one end, far away from the traction head (3), of the first shell is a closed end, meanwhile, the small-diameter end of the traction head (3) is embedded into the first shell (12) through the open end of the first shell (12), the open end of the first shell (12) is connected with the outer wall of the limiting sleeve (11), and a first compressed air circulation cavity (21) is defined through the outer wall of the limiting sleeve (11), the inner wall of the first shell (12) and one end, close to the traction head (3), of the limiting sleeve (11);
meanwhile, the closed end of the first shell (12) and one end, far away from the traction head (3), of the limiting sleeve (11) are arranged at intervals, a second compressed air circulation cavity (22) is defined by the closed end of the first shell (12), the inner wall of the first shell (12) and one end, far away from the traction head (3), of the limiting sleeve (11), and the compressed air inlet (20) is formed in the first shell (12) and communicated with the second compressed air circulation cavity (22);
and a plurality of compressed air circulation channels (23) are uniformly arranged on the limiting sleeve (11) at intervals along the circumferential direction of the limiting sleeve, each compressed air circulation channel (23) extends and penetrates along the axial direction of the limiting sleeve (11), and openings at two ends of each compressed air circulation channel (23) are communicated with the second compressed air circulation cavity (22) and the first compressed air circulation cavity (21) in a one-to-one correspondence manner to form the compressed air circulation line (2).
4. The flash tractor for making microfibres according to claim 3, characterized in that said traction assembly (1) further comprises:
the clamping device comprises two clamping sleeves (13) with the same structure, wherein each clamping sleeve (13) is of a U-shaped strip structure, is close to the first shell (12), is clamped on the guide pipeline (10), and meanwhile, the open ends of the two clamping sleeves (13) are butted to form a rectangular sleeve, and the closed ends of the first shell (12) are respectively fixed at one ends, close to the first shell (12), of the two clamping sleeves (13); a plurality of air outlets (101) are penetrated through the side wall of the guide pipeline (10) in the two jackets (13), three outer walls of each jacket (13) are provided with a plurality of vacuum grooves (102), the inner wall of each jacket (13) is provided with a plurality of capillary holes (103), the total number of the capillary holes (103) in the two jackets (13) corresponds to the plurality of air outlets (101), each air outlet (101) is communicated with the corresponding capillary hole (103), and the plurality of capillary holes (103) in each jacket (13) are communicated with all the vacuum grooves (102) on the three outer walls;
the two positioning plates (14) in the shape of a Chinese character 'kou' are sleeved and fixed outside the two clamp sleeves (13) which are butted together in a one-to-one corresponding mode, and are positioned at two ends of the clamp sleeves (13) in a one-to-one corresponding mode;
a rectangular limiting hole penetrates through the second shell (15) along the length direction of the second shell, the second shell (15) is sleeved on the two positioning plates (14) through the rectangular limiting hole, meanwhile, the inner wall of the second shell (15) and the two clamping sleeves (13) are butted together to form the outer wall of the rectangular sleeve, a vacuum layer (104) is defined between the two positioning plates (14), the vacuum layer (104) is communicated with the vacuum grooves (102) on the three side walls of each clamping sleeve (13), and meanwhile, the vacuum layer (104) is communicated with a solvent recovery storage tank (5) through a solvent recovery pipe;
a negative pressure generator (16), wherein the output end of the negative pressure generator (16) is communicated with the vacuum layer (104).
5. The flash tractor for preparing ultrafine fibers according to claim 4, characterized in that every two adjacent vacuum tanks (102) on each face of each jacket (13) are connected by a connecting channel (105).
6. The flash tractor for preparing superfine fibers according to any one of claims 4 to 5, wherein a plurality of strip-shaped holes are uniformly arranged in each jacket (13) at intervals along the circumferential direction of the guide duct (10), the length of each strip-shaped hole extends along the axial direction of the guide duct (10), and a heating rod (4) extending along the length of each strip-shaped hole is embedded and connected in each strip-shaped hole.
7. A flash spinning apparatus for preparing microfiber, comprising: a frame (6), a spinneret (61), a flash tractor (62), a swinging disc (63), a driving motor (64) and a lapping device (65), wherein the flash tractor (62) is a flash tractor for preparing superfine fibers according to any one of claims 1-6;
the spinning nozzle (61), the flash tractor (62) and the yarn swinging disc (63) are connected to the rack (6) and located on the same straight line, the flash tractor (62) is located between the spinning nozzle (61) and the yarn swinging disc (63) and respectively arranged at intervals with the spinning nozzle (61) and the yarn swinging disc (63), meanwhile, one end, far away from the traction assembly (1), of the traction head (3) of the flash tractor (62) is close to the spraying end of the spinning nozzle (61), and the flash tractor (62) and the yarn swinging disc (63) are eccentrically arranged;
the driving motor (64) is connected to the rack (6) and connected with the wire swinging disc (63) to drive the wire swinging disc (63) to rotate;
the lapping device (65) is respectively positioned at the bottom ends of the flash evaporation tractor (62) and the wire swinging disc (63) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221900250.7U CN217839213U (en) | 2022-07-22 | 2022-07-22 | Flash evaporation tractor for preparing superfine fiber and flash evaporation spinning device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221900250.7U CN217839213U (en) | 2022-07-22 | 2022-07-22 | Flash evaporation tractor for preparing superfine fiber and flash evaporation spinning device thereof |
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| Publication Number | Publication Date |
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| CN217839213U true CN217839213U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221900250.7U Active CN217839213U (en) | 2022-07-22 | 2022-07-22 | Flash evaporation tractor for preparing superfine fiber and flash evaporation spinning device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116876086A (en) * | 2023-09-06 | 2023-10-13 | 江苏青昀新材料有限公司 | Flash spinning pipeline system |
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2022
- 2022-07-22 CN CN202221900250.7U patent/CN217839213U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116876086A (en) * | 2023-09-06 | 2023-10-13 | 江苏青昀新材料有限公司 | Flash spinning pipeline system |
| CN116876086B (en) * | 2023-09-06 | 2023-11-28 | 江苏青昀新材料有限公司 | Flash spinning pipeline system |
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Effective date of registration: 20230913 Address after: 511545 28 Delong Avenue, Shijiao Town, Qingcheng District, Qingyuan City, Guangdong Province Patentee after: GUANGDONG KINGFA TECHNOLOGY Co.,Ltd. Address before: No. 399 Bingshui Road, Xiqing District, Tianjin, Tianjin Patentee before: TIANJIN POLYTECHNIC University |
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Effective date of registration: 20240717 Address after: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Patentee after: KINGFA SCI. & TECH. Co.,Ltd. Country or region after: China Patentee after: GUANGDONG KINGFA TECHNOLOGY Co.,Ltd. Address before: 511545 28 Delong Avenue, Shijiao Town, Qingcheng District, Qingyuan City, Guangdong Province Patentee before: GUANGDONG KINGFA TECHNOLOGY Co.,Ltd. Country or region before: China |