CN209759650U - Production device for PVDF (polyvinylidene fluoride) fluorocarbon monofilaments - Google Patents
Production device for PVDF (polyvinylidene fluoride) fluorocarbon monofilaments Download PDFInfo
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- CN209759650U CN209759650U CN201920372131.0U CN201920372131U CN209759650U CN 209759650 U CN209759650 U CN 209759650U CN 201920372131 U CN201920372131 U CN 201920372131U CN 209759650 U CN209759650 U CN 209759650U
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Abstract
The utility model provides a production device of PVDF fluorine carbon monofilament, which comprises a frame, fuse-element extrusion mechanism and cooling device, cooling device includes coolant tank and at least a set of rolling clamping mechanism, be equipped with cascaded hot air unit between rolling clamping mechanism and the spinneret, cascaded hot air unit includes a plurality of hot-blast main and heat transfer tuber pipe crane, cup joint between the hot-blast main and be the echelonment, the body of every hot-blast main sets up to the air channel, the bottom of hot-blast main is equipped with the air intake, the air intake passes through the air-supply line and links to each other with hot-blast generating device, all be equipped with a plurality of apertures on the hot-blast. The utility model discloses combine air-cooling and water-cooling technique, adopt the cooling method of ladder configuration temperature, to different forms, different positions, the different temperatures in the monofilament cooling process, adopt temperature adjustable, position adjustable air cooling and water cooling mode, cool off the design to melt spinning, the PVDF raw materials crystallization rate is fast and to the temperature sensitive problem in the important solution melt spinning.
Description
Technical Field
The utility model relates to a production device of fishing line, in particular to production device of PVDF fluorine carbon monofilament.
Background
Polyvinylidene fluoride (PVDF), abbreviated as English, has the characteristics of high crystallization speed, high crystallization performance, high elastic modulus and the like, so that the requirement on producing monofilaments by a melt spinning method is high and the difficulty is high. During melt spinning, because the PVDF raw material is particularly sensitive to temperature, severe defects such as bubbles, crinkles, rounding, broken filaments and the like can be generated by quenching. In particular, when a homogeneous PVDF raw material is used, the defects are more serious, and a large amount of waste products are generated.
Disclosure of Invention
The utility model aims to solve the technical problem that to the not enough of prior art, provide a reasonable in design, simple structure's production facility of PVDF fluorine carbon monofilament.
the utility model aims to solve the technical problem that the technical scheme realizes through following, the utility model relates to a PVDF fluorine carbon monofilament's apparatus for producing, including frame, fuse-element extrusion mechanism and cooling device, fuse-element extrusion mechanism includes the barrel, rotates the extrusion screw who sets up in the barrel and installs the spinneret at barrel discharge gate department, and is characterized in that, cooling device include cooling water tank and set up at least a set of roll clamping mechanism in cooling water tank, be equipped with between roll clamping mechanism and the spinneret and be used for providing the hot-blast cascaded hot-blast apparatus that different temperatures cooled melt spinning, cascaded hot-blast apparatus fixed mounting is on cooling water tank;
The stepped hot air device comprises a plurality of hot air pipes with different pipe diameters and different heights and a hot air pipe lifting frame for adjusting the height of the hot air pipes, wherein the hot air pipes are sleeved to form a step shape, a pipe body of each hot air pipe is arranged to be an air passing channel, the top ends of the hot air pipes are sealed, an air inlet is formed in the bottom of each hot air pipe and is connected with a hot air generating device through an air inlet pipe, a plurality of small holes for blowing out the air passing channel are formed in the side wall of each hot air pipe on each step, and the small holes are symmetrically formed in two sides of each hot air pipe.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, rolling clamping mechanism be equipped with two sets ofly, two sets of rolling clamping mechanism establish side by side in cascaded hot air device both sides.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, roll clamping mechanism by the backing roll that supplies the spinning to walk around with press the pneumatic compression roller of spinning on the backing roll and constitute, the backing roll passes through the bearing dress on coolant tank, pneumatic compression roller passes through pressure adjustment mechanism and adorns on coolant tank, links to each other through sprocket chain drive mechanism transmission between the backing roll, the backing roll is the rubber roll.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, pressure adjustment mechanism be equipped with the regulating arm, the middle part of regulating arm is adorned on coolant tank's lateral wall through the pivot, regulating arm one end is equipped with the bearing, the roller dress of pneumatic compression roller is on the bearing, the other end of regulating arm is articulated with the drive actuating cylinder of dress on coolant tank.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the hot-blast main crane including the hot-blast main mount pad that is equipped with the hot-blast main mounting hole, install the lifter of vertical setting on the hot-blast main mount pad, be equipped with the sleeve pipe on the lifter, the sleeve pipe is fixed on coolant tank, be equipped with on the sleeve pipe with lifter complex locking bolt.
the utility model discloses the technical problem that will solve can also be realized through following technical scheme, the hot-blast main is equipped with two, and inlayer hot-blast main stretches out from the top of outer hot-blast main and is the echelonment.
The technical problem to be solved by the utility model can be realized by the following technical scheme, and the height of each layer of ladder is 20cm-40 cm.
The technical problem to be solved by the utility model can also be realized by the following technical scheme, and the inclined upward direction of the small hole and the horizontal line form an included angle of 20-45 degrees.
The utility model discloses another technical problem that will solve is realized through following technical scheme, the utility model relates to a PVDF fluorocarbon monofilament production method, its characteristics are, adopt above-mentioned apparatus for producing PVDF fluorocarbon monofilament, its method is, melt spinning is after spinneret shaping, stretch out downwards from the both sides of cascaded hot air device, simultaneously, send into 160 ℃ -210 ℃ hot-blast to the hot-blast main on the top ladder, 160 ℃ -210 ℃ hot-blast blows to melt spinning through the aperture of hot-blast main, carry out the one-level air cooling, simultaneously, send into 80 ℃ -120 ℃ hot-blast to the hot-blast main on the lower ladder, 80 ℃ -120 ℃ hot-blast blows to the melt spinning after the one-level air cooling through the aperture of hot-blast main, carry out the second grade air cooling, then, melt spinning stretches out from cascaded hot air device below, get into the cooling water tank after the room temperature cooling, and then cooling by using cooling water at the temperature of 3-12 ℃.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, the stroke of one-level forced air cooling is apart from 0-20 cm's scope of spinneret, the stroke of second grade forced air cooling is apart from 20-60 cm's scope of spinneret, room temperature cooling's stroke is apart from 60-90 cm's scope of spinneret, and the water-cooling distance is in 10cm-30 cm's scope.
compared with the prior art, the utility model discloses independently designed a cascaded hot-blast apparatus, combined forced air cooling and water-cooling technique, adopted the cooling method of ladder configuration temperature, to different forms, different positions, the different temperatures in the monofilament cooling process, adopted temperature adjustable, position adjustable air cooling and water cooling method, cooled off the design to melt spinning, the problem that PVDF raw materials crystallization speed is fast in the important solution melt spinning to solve the problem that the PVDF raw materials is sensitive to the temperature.
Drawings
FIG. 1 is a schematic structural diagram of a PVDF fluorocarbon monofilament production device;
FIG. 2 is a schematic structural view of a stepped hot air device;
FIG. 3 is a side view of FIG. 1;
Fig. 4 is a top view of fig. 1.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not constitute a limitation to the right thereof.
Embodiment 1, with reference to fig. 1 to 4, a PVDF fluorocarbon monofilament production device includes a rack, a melt extrusion mechanism and a cooling device, where the melt extrusion mechanism includes a cylinder, an extrusion screw rotatably disposed in the cylinder, and a spinneret 4 mounted at a discharge port of the cylinder, the cooling device includes a cooling water tank 1 and at least one set of rolling clamping mechanisms disposed in the cooling water tank 1, a stepped hot air device 3 for providing hot air of different temperatures to cool melt spinning is disposed between the rolling clamping mechanisms and the spinneret 4, and the stepped hot air device 3 is fixedly mounted on the cooling water tank 1;
The step-type hot air device comprises a plurality of hot air pipes 7 with different pipe diameters and different heights and a hot air pipe lifting frame for adjusting the heights of the hot air pipes 7, wherein the hot air pipes 7 are sleeved in a step shape, a pipe body of each hot air pipe 7 is provided with an air passing channel 8, the top ends of the hot air pipes 7 are sealed, the bottom of each hot air pipe 7 is provided with an air inlet 9, the air inlets 9 are connected with a hot air generating device through the air inlet pipes, the side wall of each hot air pipe 7 on each step is provided with a plurality of small holes 14 for blowing out air passing through the air passing channels 8, the small holes 14 are symmetrically arranged on two sides of each hot air pipe 7, the purpose is energy saving, the step-type hot air device can also be uniformly arranged along the circumferential direction of the hot air pipes, the top ends of the hot air pipes on the top steps are butted with a spinneret plate, the hot air generating device can be a fan, the heat preservation cylinder is arranged on the hot air pipe lifting frame;
The hot air pipe lifting frame comprises a hot air pipe mounting seat 10 provided with a hot air pipe mounting hole, a lifting rod 13 vertically arranged is mounted on the hot air pipe mounting seat 10, a sleeve pipe 12 is arranged on the lifting rod 13 and fixed on the cooling water tank, a locking bolt 11 matched with the lifting rod 13 is mounted on the sleeve pipe 12,
The cooling water tank 1 is also internally provided with a heating pipe 15, and two sides of the stepped hot air device are also provided with comb teeth for combing melt spinning, and the comb teeth are arranged on the cooling water tank.
Embodiment 2, embodiment 1 the production device of PVDF fluorine carbon monofilament, rolling clamping mechanism be equipped with two sets ofly, two sets ofly roll clamping mechanism and establish side by side in cascaded hot-blast device both sides.
Embodiment 3, embodiment 1-2 a production device of PVDF fluorine carbon monofilament, the roll clamping mechanism by the back-up roll 2 that supplies the spinning to walk around with press the spinning on the pneumatic compression roller 16 of back-up roll 2 and constitute, back-up roll 2 is adorned on cooling water tank 1 through the bearing, pneumatic compression roller 16 is adorned on cooling water tank 1 through pressure adjustment mechanism, add a backup roll in the below between two sets of roll clamping mechanisms for the spinning on the roll clamping mechanism around separating, avoid the winding or piling up of spinning, one of them back-up roll is the drive roll, the drive roll meets with the servo motor of dress on cooling water tank, link to each other through sprocket drive mechanism transmission between the rubber roll to realize the synchronous work of two sets of roll clamping mechanisms, the backup roll be all.
Embodiment 4, embodiment 1-3 a production device of PVDF fluorine carbon monofilament, pressure adjustment mechanism be equipped with adjusting arm 5, the middle part of adjusting arm 5 is adorned on the lateral wall of cooling water tank 1 through the pivot, adjusting arm 5 one end is equipped with the bearing, the roller dress of pneumatic compression roller 16 is on the bearing, adjusting arm 5's the other end with adorn the driving cylinder 6 articulated on cooling water tank 1, the driving cylinder adopts the structure that prior art disclosed to realize.
In the production apparatus for PVDF fluorocarbon monofilament described in example 5 and examples 1 to 4, there are two hot air pipes 7, and the inner hot air pipe extends from the top of the outer hot air pipe in a step shape.
example 6, examples 1-5, the height of each step is 20cm-40 cm.
Example 7, the PVDF fluorocarbon monofilament manufacturing apparatus described in examples 1-6, wherein the orifices 14 are inclined upward at an angle of 20 ° to 45 °, preferably 30 °, to the horizontal.
embodiment 8, a method for producing PVDF fluorocarbon monofilament, using the apparatus of embodiments 1-8 to produce PVDF fluorocarbon monofilament, includes that melt spinning is formed by a spinneret 4, and then extends downward from both sides of a step-shaped hot air device, meanwhile, 160 ℃ hot air is fed into a hot air pipe 7 on a top step, 160 ℃ hot air is blown to the melt spinning through a small hole 14 of the hot air pipe 7, and primary air cooling is performed, meanwhile, 80 ℃ hot air is fed into the hot air pipe 7 on a lower step, 80 ℃ hot air is blown to the melt spinning after primary air cooling through the small hole 14 of the hot air pipe 7, secondary air cooling is performed, and then, the melt spinning extends from below the step-shaped hot air device, and enters a cooling water tank 1 after room temperature cooling, and then cooling is performed by using 3 ℃ cooling water.
Example 10 a PVDF fluorocarbon monofilament production method, the method is, after melt spinning is formed by a spinneret, extending downward from both sides of a stepped hot air device, at the same time, feeding hot air of 210 ℃ to a hot air pipe on the top step, blowing the hot air of 210 ℃ to the melt spinning through a small hole of the hot air pipe, performing primary air cooling, feeding hot air of 120 ℃ to a hot air pipe on the lower step, blowing the hot air of 120 ℃ through a small hole of the hot air pipe to the melt spinning after the primary air cooling, performing secondary air cooling, then, extending the melt spinning from below the stepped hot air device, entering a cooling water tank after room temperature cooling, and then cooling with cooling water of 12 ℃.
Example 11 a PVDF fluorocarbon monofilament production method, the melt spinning was formed by a spinneret, and then extended downward from both sides of a stepped hot air device, and at the same time, 180 ℃ hot air was fed to the hot air duct on the top step, and 180 ℃ hot air was blown to the melt spinning through the small holes of the hot air duct, and primary air cooling was performed, and at the same time, 100 ℃ hot air was fed to the hot air duct on the lower step, and 100 ℃ hot air was blown to the melt spinning after primary air cooling through the small holes of the hot air duct, and secondary air cooling was performed, and then the melt spinning was extended from below the stepped hot air device, and after room temperature cooling, entered into a cooling water tank, and then cooled with 6 ℃ cooling water.
Embodiment 12, the production method of a PVDF fluorocarbon monofilament described in embodiments 9-11, the stroke of the primary air cooling is in the range of 0-20cm from the spinneret, the stroke of the secondary air cooling is in the range of 20-60cm from the spinneret, the stroke of the room temperature cooling is in the range of 60-90cm from the spinneret, and the water cooling distance is in the range of 10-30 cm.
the utility model discloses a controllable temperature air cooling is main (account for about 70% - -90%), and the water-cooling is for assisting (10% - -30%) production mode, and in the important melt spinning of solving, the fast problem of PVDF raw materials crystallization speed, especially, adopt the cooling method of ladder configuration temperature, when melt spinning, to the different forms in the monofilament cooling process, different positions, different temperatures adopt temperature adjustable, position adjustable air cooling and water cooling mode.
in the range of 0-20cm below the spinneret plate, when the monofilament is in a molten state, hot air with high temperature of 160-210 ℃ is selected for cooling, and the height of the hot air pipe is adjusted through a hot air pipe lifting frame, so that the upper and lower positions of the small hole are adjusted;
in the distance range of 20-60cm from the lower part of the spinneret plate, when the monofilament is in a semi-molten state (the core of the monofilament is in a molten state), hot air with the medium temperature of 80-120 ℃ is selected for cooling, and the upper and lower positions of the small hole are adjustable;
Cooling the monofilament at room temperature (20-40 ℃) in a distance range of 60-90cm below the spinneret plate when the monofilament is in a high elastic state;
In the range of 90-120cm from the spinneret plate, the monofilament is in a solid state, the water temperature of 3-12 ℃ is selected for cooling, and the water cooling distance can be adjusted according to the infiltration depth of the supporting roller.
The utility model adopts a special stepped hot air device to cool the temperature in a stepped configuration, and has three functions, namely, the hot air temperature, the air speed and the position can be controlled; secondly, the small holes are uniformly distributed, so that the monofilaments in each group are uniformly cooled in an umbrella shape; and thirdly, the small holes and the horizontal line form an included angle of 200-450 degrees, wind direction and supporting force which are inclined upwards are generated, and the stretching force generated by the self weight of the PVDF monofilament can be offset while the temperature is reduced.
In addition, the utility model adopts a double-row (or single-row) rolling clamping mechanism with controllable linear velocity to replace the traditional sliding transition mode; the servo motor can be controlled to accurately operate by programming through the variable program controller, and the cooling speed required by monofilaments with different wire diameters is matched; the synchronous operation of the monofilaments in the same group can be realized by adopting a rolling clamping mechanism with adjustable pressure; the utility model discloses with the rolling clamping mechanism design into around double (the line footpath is big relatively, can be single) structure to guarantee the sufficient operating space between the monofilament.
The embodiments described above are some, but not all embodiments of the present invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. 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. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (8)
1. The utility model provides a production device of PVDF fluorine carbon monofilament, includes frame, fuse-element extrusion mechanism and cooling device, and fuse-element extrusion mechanism includes the barrel, rotates the extrusion screw who sets up in the barrel and installs the spinneret at the barrel discharge gate department, its characterized in that: the cooling device comprises a cooling water tank and at least one group of rolling clamping mechanisms arranged in the cooling water tank, a stepped hot air device for providing hot air with different temperatures to cool the melt spinning is arranged between the rolling clamping mechanisms and the spinneret plate, and the stepped hot air device is fixedly arranged on the cooling water tank;
The stepped hot air device comprises a plurality of hot air pipes with different pipe diameters and different heights and a hot air pipe lifting frame for adjusting the height of the hot air pipes, wherein the hot air pipes are sleeved to form a step shape, a pipe body of each hot air pipe is arranged to be an air passing channel, the top ends of the hot air pipes are sealed, an air inlet is formed in the bottom of each hot air pipe and is connected with a hot air generating device through an air inlet pipe, a plurality of small holes for blowing out the air passing channel are formed in the side wall of each hot air pipe on each step, and the small holes are symmetrically formed in two sides of each hot air pipe.
2. The PVDF fluorocarbon monofilament production device as set forth in claim 1, wherein: the rolling clamping mechanisms are arranged in two groups, and the two groups of rolling clamping mechanisms are arranged on two sides of the stepped hot air device side by side.
3. The PVDF fluorocarbon monofilament production device as set forth in claim 2, wherein: the rolling clamping mechanism consists of a supporting roller for the spinning to bypass and a pneumatic compression roller for pressing the spinning on the supporting roller, the supporting roller is arranged on the cooling water tank through a bearing, and the pneumatic compression roller is arranged on the cooling water tank through a pressure adjusting mechanism.
4. A PVDF fluorocarbon monofilament production device as claimed in claim 3, characterized in that: the pressure adjusting mechanism is provided with an adjusting arm, the middle part of the adjusting arm is arranged on the side wall of the cooling water tank through a rotating shaft, one end of the adjusting arm is provided with a bearing, a roller shaft of the pneumatic compression roller is arranged on the bearing, and the other end of the adjusting arm is hinged with a driving cylinder arranged on the cooling water tank.
5. the PVDF fluorocarbon monofilament production device as set forth in claim 1, wherein: the hot-blast main crane comprises a hot-blast main mounting seat provided with a hot-blast main mounting hole, a vertically arranged lifting rod is mounted on the hot-blast main mounting seat, a sleeve is arranged on the lifting rod and fixed on the cooling water tank, and a locking bolt matched with the lifting rod is mounted on the sleeve.
6. The PVDF fluorocarbon monofilament production device as set forth in claim 1, wherein: the hot air pipes are arranged in two, and the inner layer hot air pipe extends out of the top of the outer layer hot air pipe in a step shape.
7. The PVDF fluorocarbon monofilament production device as set forth in claim 1, wherein: the height of each step is 20cm-40 cm.
8. The PVDF fluorocarbon monofilament production device as set forth in claim 1, wherein: the small holes are inclined upwards to form an included angle of 20-45 degrees with the horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372131.0U CN209759650U (en) | 2019-03-22 | 2019-03-22 | Production device for PVDF (polyvinylidene fluoride) fluorocarbon monofilaments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372131.0U CN209759650U (en) | 2019-03-22 | 2019-03-22 | Production device for PVDF (polyvinylidene fluoride) fluorocarbon monofilaments |
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| CN209759650U true CN209759650U (en) | 2019-12-10 |
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| CN201920372131.0U Active CN209759650U (en) | 2019-03-22 | 2019-03-22 | Production device for PVDF (polyvinylidene fluoride) fluorocarbon monofilaments |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811420A (en) * | 2019-03-22 | 2019-05-28 | 连云港纶洋单丝科技有限公司 | A kind of process units and production method of PVDF fluorine carbon monofilament |
| CN113005546A (en) * | 2021-01-25 | 2021-06-22 | 连云港纶洋单丝科技有限公司 | Fluorocarbon monofilament and production method thereof |
-
2019
- 2019-03-22 CN CN201920372131.0U patent/CN209759650U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811420A (en) * | 2019-03-22 | 2019-05-28 | 连云港纶洋单丝科技有限公司 | A kind of process units and production method of PVDF fluorine carbon monofilament |
| CN109811420B (en) * | 2019-03-22 | 2024-03-19 | 连云港纶洋单丝科技有限公司 | PVDF fluorocarbon monofilament production device and production method |
| CN113005546A (en) * | 2021-01-25 | 2021-06-22 | 连云港纶洋单丝科技有限公司 | Fluorocarbon monofilament and production method thereof |
| CN113005546B (en) * | 2021-01-25 | 2022-03-29 | 连云港纶洋单丝科技有限公司 | Production method of fluorocarbon monofilament |
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