CN211446005U - Screw extruder for melt spinning - Google Patents
Screw extruder for melt spinning Download PDFInfo
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- CN211446005U CN211446005U CN201921955107.6U CN201921955107U CN211446005U CN 211446005 U CN211446005 U CN 211446005U CN 201921955107 U CN201921955107 U CN 201921955107U CN 211446005 U CN211446005 U CN 211446005U
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- screw extruder
- heater
- melt spinning
- threaded sleeve
- circulating water
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Abstract
A screw extruder for melt spinning comprises a screw extruder body and a feed hopper, wherein the screw extruder body comprises a threaded sleeve, a screw rod arranged in the threaded sleeve and a screw rod driving assembly connected with the screw rod; the outer side of one end, far away from the feed hopper, of the threaded sleeve is provided with a heating sleeve, the heating sleeve comprises a heater and a flame-retardant heat-insulating layer arranged on the outer side of the heater, the heater is arranged on the outer surface of the threaded sleeve, the heater is electrically connected with an electrical control system, and the electrical control system is electrically connected with a temperature sensor arranged on the inner side of the threaded sleeve. The utility model discloses not only can prevent in the swivel nut high temperature and make swivel nut rapid cooling, also can prevent the discharge gate department material bonding of feeder hopper simultaneously.
Description
Technical Field
The utility model relates to a melt spinning technical field specifically is a screw extruder for melt spinning is related to.
Background
The screw extruder is a common extruder frequently used in the field of spinning, and a spinning high polymer chip is plasticized into a uniform melt by an extrusion system, and the melt is forced to a spinning metering pump under the drive of a screw.
In the practical spinning production, in the process of gradually raising the temperature of the screw extruder, even if the heater stops working, the temperature in the screw sleeve also rises, the temperature is 3-6 ℃ higher than a set value, the service life of equipment is shortened due to overhigh temperature, the viscosity of a melt is reduced, the subsequent spinning is not facilitated, in addition, the temperature in the screw sleeve needs to be reduced during process adjustment, the common screw extruder only can be slowly cooled to reduce the temperature to the set value, and the process consumes long time, so that the problem of low production efficiency is caused; the temperature of the feed hopper of the screw press may be higher than the melting point of the solid materials due to heat conduction, and the discharge port of the feed hopper may be clogged by the softened solid materials during long-time operation, resulting in failure to perform continuous production.
There is therefore a need for a screw extruder which can meet different temperature requirements.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the screw extruder for melt spinning not only has the functions of preventing the inner temperature of the screw sleeve from being too high and quickly cooling the screw sleeve, but also has the characteristic of preventing materials at the discharge port of the feed hopper from being bonded.
In order to solve the technical problem, the technical scheme of the utility model is that:
a screw extruder for melt spinning comprises a screw extruder body and a feed hopper, wherein the screw extruder body comprises a threaded sleeve, a screw rod arranged in the threaded sleeve and a screw rod driving assembly connected with the screw rod;
the swivel nut is kept away from the outside of feeder hopper one end is provided with the heating jacket, the heating jacket include the heater with set up in the fire-retardant heat preservation in the heater outside, the heater set up in the surface of swivel nut, the electricity is connected between heater and the electrical control system, the electrical control system with set up in the electricity is connected between the inboard temperature sensor of swivel nut.
Preferably, the heater is a resistance heater, and the resistance heater surrounds the outer side of the screw extruder body.
Preferably, the flame-retardant heat-insulation layer comprises an asbestos layer, and a flame-retardant fiber layer is wrapped outside the asbestos layer.
Preferably, the circulating cooling assembly comprises a water inlet pipe, a circulating water pump, a water tank and a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively connected with the circulating water jacket and communicated with each other, the water inlet pipe, the circulating water pump, the water tank and the water outlet pipe are sequentially communicated with each other through pipeline connection, and the circulating water pump is electrically connected with the electric control system.
Preferably, the feeder hopper includes lateral wall and roof, be provided with the feed inlet on the roof, the inside of feeder hopper is provided with the baffle, the baffle slope sets up downwards and is located under the feed inlet.
Preferably, the temperature sensor includes a first temperature sensor for detecting a temperature of the cooling region of the circulating water jacket, and a second temperature sensor for detecting a temperature of the heating region of the heating jacket.
Preferably, a heat insulation waterproof gasket is arranged between the circulating water jacket and the heating jacket.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
through the utility model discloses in, the outside that the swivel nut is close to feeder hopper one end is provided with the circulation water jacket, and outside circulating cooling water can get into in the circulation water jacket, carries out temperature reduction to the material that is in the screw rod conveying section, makes the material reach and can not plasticize, but the purpose of preheating, pressurized compaction, simultaneously, cools down to the discharge gate of feeder hopper, makes the temperature in here be in balanced state, prevents that the material from because of the high temperature leads to the bonding jam, guarantees the feeding effect; the utility model discloses in, the outside that feeder hopper one end was kept away from to the swivel nut is provided with the heating jacket, and wherein, the heater can heat the material that is in screw rod compression section and measurement section, makes it can plasticize and keep the plastify state, and simultaneously, fire-retardant heat preservation can keep the temperature, reduces calorific loss, reduces the energy consumption.
Through the utility model discloses in, adopt resistance heater as heater element, have controllability and rapid heating up's characteristic, the electricity is connected between resistance heater and the electrical control system, under electrical control system's control, can carry out rapid heating and heat up to the material in this region, satisfies the requirement of rapid production, and easy control, the heating is even, the thermal efficiency is high.
Through the utility model discloses in, the inside of feeder hopper is provided with baffle and slope and sets up downwards under the feed inlet, can block the material that gets into through the feed inlet, slows down and falls into speed, prevents to produce because of falling into and unable the transport fast, and the production is piled up, prevents that the material bonding of discharge gate from blockking up, has improved pan feeding and production effect, has guaranteed going on in order of production processes.
Through the utility model discloses in, be provided with first temperature sensor and second temperature sensor, can carry out the accurate perception of temperature to the material of transport section, compression section and measurement section, and then close through opening of electrical control system control circulating water pump and heater, improved the automation, reduced the inaccuracy that causes because of personnel manual operation.
Through the utility model discloses in, be provided with thermal-insulated waterproof gasket between circulation water jacket and the heating jacket, it has lower coefficient of heat conductivity and good heat-proof quality, prevents to carry out heat-conduction between circulation water jacket and the heating jacket, improves cooling and heating effect.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure: the heat insulation and water resistance heating device comprises a screw extruder body 1, a screw sleeve 11, a screw rod 12, a screw rod 13, a screw rod driving assembly 2, a feed hopper 2, a side wall 21, a top plate 22, a feed inlet 23, a baffle 24, a circulating water jacket 3, a water inlet pipe 31, a circulating water pump 32, a water tank 33, a water outlet pipe 34, a heating jacket 4, a heater 41, an asbestos layer 421, a flame-retardant fiber layer 422, an electric control system 5, a first temperature sensor 61, a second temperature sensor 62 and a heat insulation waterproof gasket 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, the utility model discloses a screw extruder body 1 and feeder hopper 2, screw extruder body 1 include swivel nut 11, install screw rod 12 in swivel nut 11 and the screw drive subassembly 13 of being connected with screw rod 12, and the discharge gate of feeder hopper 2 is connected with the inside cavity of swivel nut 11 and is link up.
The outer side of one end of the threaded sleeve 11 close to the feed hopper 2 is provided with a circulating water jacket 3, and the circulating water jacket 3 is communicated with a circulating cooling component arranged outside the screw extruder body 1.
The circulating cooling assembly comprises a water inlet pipe 31, a circulating water pump 32, a water tank 33 and a water outlet pipe 34, the water inlet pipe 31 and the water outlet pipe 34 are respectively communicated with the circulating water jacket 3, the water inlet pipe 31, the circulating water pump 32, the water tank 33 and the water outlet pipe 34 are sequentially communicated through pipelines, and the circulating water pump 32 is electrically connected with the electric control system 5.
The existence of circulation water jacket 3 and circulative cooling subassembly can carry out the temperature reduction to the material that is in the screw rod transport section, makes the material reach and can not plasticize, nevertheless will preheat, the crowded purpose of compaction, simultaneously, cools down to the discharge gate of feeder hopper 2, makes the temperature at here be in balanced state, prevents that the material from leading to the bonding because of the high temperature and blockking up, guarantees the feeding effect.
The outside that feeder hopper 2 one end was kept away from to swivel nut 11 is provided with heating jacket 4, and heating jacket 4 includes heater 41 and sets up in the fire-retardant heat preservation in the heater 41 outside, and fire-retardant heat preservation includes asbestos layer 421, and the outside package of asbestos layer 421 has flame retardant fiber layer 422. The heater 41 is disposed on the outer surface of the threaded sleeve 11, the heater 41 is electrically connected to the electric control system 5, and the electric control system 5 is electrically connected to a temperature sensor disposed inside the threaded sleeve 11. The heater 41 can heat the materials in the screw compression section and the metering section, so that the materials can be plasticized and a plasticized state can be kept, and meanwhile, the flame-retardant heat-preservation layer can keep the temperature, thereby reducing the heat loss and the energy consumption.
The heater 41 is preferably a resistance heater, and the resistance heater is wound around the outside of the screw extruder body 1. Under the control of the electrical control system 5, the materials in the area can be rapidly heated and heated, the requirement of rapid production is met by adopting the resistance heater, and the electric heating furnace is easy to control, uniform in heating and high in heat efficiency.
Wherein, feeder hopper 2 includes lateral wall 21 and roof 22, is provided with feed inlet 23 on the roof 22, and the inside of feeder hopper 2 is provided with baffle 24, and baffle 24 slope sets up downwards and is located feed inlet 23 under. Through the utility model discloses in, feeder hopper 2's inside is provided with baffle 24 and slope and sets up downwards under feed inlet 23, can block the material that gets into through feed inlet 23, slows down and falls into speed, prevents to produce because of falling into and unable transport fast, and piling up, the material bonding that prevents the discharge gate from blockking up has improved pan feeding and production effect, has guaranteed going on in order of production processes.
Wherein the temperature sensors include a first temperature sensor 61 and a second temperature sensor 62, the first temperature sensor 61 is used for detecting the temperature of the cooling region of the circulating water jacket 3, and the second temperature sensor 62 is used for detecting the temperature of the heating region of the heating jacket 4. Through the utility model discloses in, be provided with first temperature sensor 61 and second temperature sensor 62, can carry out the accurate perception of temperature to the material of carrying section, compression section and measurement section, and then close through opening of electrical control system 5 control circulating water pump 32 and heater 41, improved the automation, reduced the inaccuracy that causes because of personnel's manual operation.
Wherein, a heat insulation waterproof gasket 7 is arranged between the circulating water jacket 3 and the heating jacket 4. The heat-insulating waterproof gasket 7 has a low heat conductivity coefficient and good heat-insulating performance, prevents heat conduction between the circulating water jacket 3 and the heating jacket 4, and improves cooling and heating effects.
When the utility model is used, the electric control system 5 controls the circulating water pump 32 and the heater 41 to be opened and closed by acquiring the temperature data sent by the first temperature sensor 61 and the second temperature sensor 62, and further realizes the temperature regulation of the material in the screw sleeve 11, thereby preventing the overhigh temperature in the screw sleeve 11 and quickly cooling the screw sleeve 11 and meeting the production requirement; meanwhile, the materials at the feed inlet are prevented from being bonded, and the ordered production is ensured.
To sum up, the utility model discloses not only can prevent in the swivel nut high temperature and make swivel nut rapid cooling, also can prevent the discharge gate department material bonding of feeder hopper simultaneously.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A screw extruder for melt spinning comprises a screw extruder body and a feed hopper, wherein the screw extruder body comprises a threaded sleeve, a screw rod arranged in the threaded sleeve and a screw rod driving component connected with the screw rod, a discharge port of the feed hopper is connected and communicated with an inner cavity of the threaded sleeve, and the screw extruder is characterized in that,
a circulating water jacket is arranged on the outer side of one end, close to the feed hopper, of the threaded sleeve and is communicated with a circulating cooling assembly arranged outside the screw extruder body;
the swivel nut is kept away from the outside of feeder hopper one end is provided with the heating jacket, the heating jacket include the heater with set up in the fire-retardant heat preservation in the heater outside, the heater set up in the surface of swivel nut, the electricity is connected between heater and the electrical control system, the electrical control system with set up in the electricity is connected between the inboard temperature sensor of swivel nut.
2. Screw extruder for melt spinning according to claim 1, wherein the heater is an electrical resistance heater surrounding the outside of the screw extruder body.
3. The screw extruder for melt spinning of claim 1, wherein said flame-retardant insulation layer comprises an asbestos layer, said asbestos layer being surrounded on the outside by a flame-retardant fiber layer.
4. The screw extruder for melt spinning according to claim 1, wherein the circulating cooling assembly comprises a water inlet pipe, a circulating water pump, a water tank and a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively communicated with the circulating water jacket, the water inlet pipe, the circulating water pump, the water tank and the water outlet pipe are sequentially communicated through a pipeline, and the circulating water pump is electrically connected with the electrical control system.
5. Screw extruder for melt spinning according to claim 1, wherein the feed hopper comprises a side wall and a top plate, the top plate is provided with a feed inlet, and the feed hopper is internally provided with a baffle plate which is obliquely arranged downwards and is positioned right below the feed inlet.
6. The screw extruder for melt spinning of claim 1, wherein said temperature sensor comprises a first temperature sensor for temperature sensing of a cooling zone of said circulating water jacket and a second temperature sensor for temperature sensing of a heating zone of said heating jacket.
7. Screw extruder for melt spinning according to claim 1, characterized in that a heat insulating and water proof gasket is arranged between the circulating water jacket and the heating jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955107.6U CN211446005U (en) | 2019-11-13 | 2019-11-13 | Screw extruder for melt spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955107.6U CN211446005U (en) | 2019-11-13 | 2019-11-13 | Screw extruder for melt spinning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211446005U true CN211446005U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921955107.6U Active CN211446005U (en) | 2019-11-13 | 2019-11-13 | Screw extruder for melt spinning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114262945A (en) * | 2021-12-30 | 2022-04-01 | 长乐恒申合纤科技有限公司 | Production method of single-hole single plate with female threads |
| CN114262943A (en) * | 2021-12-30 | 2022-04-01 | 长乐恒申合纤科技有限公司 | Production process of regenerated full-dull nylon 6 filament |
-
2019
- 2019-11-13 CN CN201921955107.6U patent/CN211446005U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114262945A (en) * | 2021-12-30 | 2022-04-01 | 长乐恒申合纤科技有限公司 | Production method of single-hole single plate with female threads |
| CN114262943A (en) * | 2021-12-30 | 2022-04-01 | 长乐恒申合纤科技有限公司 | Production process of regenerated full-dull nylon 6 filament |
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