CN211170979U - Screw extruder that chemical fiber production used - Google Patents

Abstract

The utility model discloses a screw extruder for chemical fiber production, which comprises a blanking structure and an extruder, wherein the arrangement of a dustproof cover can prevent dust in the air and dust generated in the production process from entering an extrusion cavity through a hopper to influence the quality of chemical fiber production, the extrusion threads arranged on a first screw and the extrusion threads arranged on a second screw are staggered, the rotating directions of the first screw and the second screw are opposite, materials are continuously sheared and mixed longitudinally and transversely in the extrusion process, the chemical fiber plasticization is more uniform, the extrusion efficiency and quality are improved, the upper end of a ventilation hood is arranged in an inner cavity of a ventilation pipe, the lower end of the ventilation hood penetrates through a heat preservation layer and a heating net to be communicated with the extrusion cavity, the arrangement of the ventilation structure prevents the heat on the inner surface of the screws from being only gathered in the ventilation hood, and the screw breakage phenomenon is easily caused after long-time use, the service life of the device is prolonged, and the production cost is saved.

Description

Screw extruder that chemical fiber production used

Technical Field

The utility model relates to a chemical fiber production facility technical field specifically is a screw extruder that chemical fiber production used.

Background

The chemical fiber is a chemical fiber, which is made of natural or synthetic polymer. Depending on the source of the raw material, the fiber can be classified into artificial fiber using a natural polymer as the raw material and synthetic fiber using a synthetic polymer as the raw material. Chemical fibers are generally prepared by first forming a natural or synthetic polymeric or inorganic substance into a spinning melt or solution, then filtering, metering, extruding from a spinneret (plate) into a liquid stream, and then coagulating to form the fiber.

When traditional screw extruder chemical fibre material that chemical fibre production used fell into the screw rod, be difficult for producing the effort that advances to the extrusion opening, lead to extruding efficiency lower, and appear extruding the phenomenon that the quality is poor easily, and the screw extruder screw rod that traditional chemical fibre production used all can produce very big heat at operation in-process inside and outside surface, the heat of screw rod surface can be fine transmits the chemical fibre material for, but the heat of screw rod internal surface can only gather inside it, cause the cracked phenomenon of screw rod easily after using for a long time.

Aiming at the problems, in order to improve the extrusion efficiency and quality, prolong the service life of a device and save the production cost, a screw extruder for chemical fiber production is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw extruder of chemical fibre production use has improved the efficiency and the quality of extruding, has prolonged the life of device, has practiced thrift manufacturing cost, has solved prior art's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a screw extruder for chemical fiber production comprises a blanking structure and an extruder, wherein the extruder is arranged at the lower end of the blanking structure, the blanking structure comprises a stirring structure and a dustproof structure, and the dustproof structure is arranged at the upper end of the stirring structure; the stirring structure comprises a hopper, a first motor, a stirring shaft and a stirring rod, wherein the first motor is arranged on one side of the hopper, the stirring rod is arranged in an inner cavity of the hopper, and the stirring rod is connected with the output end of the first motor through the stirring shaft; the extruder comprises an extrusion structure, a ventilation structure and a driving structure, wherein the ventilation structure is arranged at the upper end of the extrusion structure, and the driving structure is arranged on one side of the extrusion structure; the extrusion structure comprises an extrusion cavity, an extrusion port, a heating net, a heat preservation layer, a first screw rod, an extrusion thread, a second screw rod and a heating pipe, wherein the extrusion port is arranged on one side of the extrusion cavity far away from the driving structure, the heating net is arranged on the outer side of the extrusion cavity, the heat preservation layer is arranged on the outer side of the heating net, the first screw rod is arranged in an inner cavity of the extrusion cavity, the second screw rod is arranged on one side of the first screw rod, the extrusion thread is arranged on the first screw rod and the second screw rod, the heating pipe is arranged on the inner side of the heating net, and the heating pipe is arranged on the outer sides of the first screw rod and the.

Further, dustproof construction includes shield, fixed rotation axis and buckle structure, and fixed rotation axis sets up in one side of shield, and buckle structure sets up the opposite side at the shield, and the both ends of shield are respectively through fixed rotation axis and buckle structure and the both sides wall swing joint at hopper top.

Further, the ventilation structure comprises a housing, a second motor, a suction fan blade, a ventilation pipe, a ventilation hood and an air outlet, wherein the second motor is arranged at the top of the inner cavity of the housing, the suction fan blade is arranged at the lower end of the second motor, the ventilation pipe is arranged at the lower end of the housing and communicated with the bottom of the housing, and the air outlet is arranged on the side wall of the extrusion cavity.

Further, the upper end setting of ventilation hood is at the inner chamber of ventilation pipe, and the lower extreme of ventilation hood runs through heat preservation and heating net and extrudes the cavity intercommunication.

Furthermore, the extrusion threads arranged on the first screw and the extrusion threads arranged on the second screw are staggered.

Further, the rotation directions between the first screw and the second screw are opposite.

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

1. the utility model provides a screw extruder that chemical fiber production used, the both ends of shield are respectively through the both sides wall swing joint at fixed rotation axis and buckle structure and hopper top, can prevent that the dust that produces in the dust in the air and the production process from passing through the hopper and getting into and extruding the cavity, influence the quality of chemical fiber production.

2. The utility model provides a screw extruder that chemical fiber production used, the screw thread of extruding that sets up on the first screw rod and the screw thread of extruding that the second screw rod set up are crisscross between placing, and the direction of rotation between first screw rod and the second screw rod is opposite, and the material constantly receives vertical horizontal shearing mixture in extrusion process, makes the chemical fiber plastify more even, has improved the efficiency and the quality of extruding.

3. The utility model provides a screw extruder that chemical fiber production used, the upper end setting of draft hood is at the inner chamber of ventilation pipe, and the lower extreme of draft hood runs through heat preservation and heating screen and extrudes the cavity intercommunication, and setting up of ventilation structure prevents that the heat of screw rod internal surface can only gather inside it, causes the cracked phenomenon of screw rod easily after using for a long time, has prolonged the life of device, has practiced thrift manufacturing cost.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of the extrusion structure of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of the blanking structure of the present invention.

In the figure: 1. a blanking structure; 11. a stirring structure; 111. a hopper; 112. a first motor; 113. a stirring shaft; 114. a stirring rod; 12. a dust-proof structure; 121. a dust cover; 122. fixing the rotating shaft; 123. a buckle structure; 2. an extruder; 21. extruding the structure; 211. extruding the cavity; 212. an extrusion port; 213. heating the net; 214. a heat-insulating layer; 215. a first screw; 216. extruding threads; 217. a second screw; 218. heating a tube; 22. a ventilation structure; 221. a housing; 222. a second motor; 223. a fan blade of the suction fan; 224. a vent pipe; 225. a ventilation hood; 226. an air outlet; 23. a drive structure.

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.

Referring to fig. 1-4, a screw extruder for chemical fiber production includes a feeding structure 1 and an extruder 2, the extruder 2 is disposed at a lower end of the feeding structure 1, the feeding structure 1 includes a stirring structure 11 and a dustproof structure 12, the dustproof structure 12 is disposed at an upper end of the stirring structure 11, the stirring structure 11 includes a hopper 111, a first motor 112, a stirring shaft 113 and a stirring rod 114, the first motor 112 is disposed at one side of the hopper 111, the stirring rod 114 is disposed in an inner cavity of the hopper 111, the stirring rod 114 is connected to an output end of the first motor 112 via the stirring shaft 113, the dustproof structure 12 includes a dustproof cover 121, a fixed rotation shaft 122 and a buckle structure 123, the fixed rotation shaft 122 is disposed at one side of the dustproof cover 121, the buckle structure 123 is disposed at the other side of the dustproof cover 121, and two ends of the dustproof cover 121 are movably connected to two sidewalls of the top of the hopper 111 via the fixed rotation shaft 122 and the buckle, the extruder 2 comprises an extrusion structure 21, a ventilation structure 22 and a driving structure 23, wherein the ventilation structure 22 is arranged at the upper end of the extrusion structure 21, the driving structure 23 is arranged at one side of the extrusion structure 21, the extrusion structure 21 comprises an extrusion cavity 211, an extrusion port 212, a heating net 213, a heat insulation layer 214, a first screw 215, an extrusion thread 216, a second screw 217 and a heating pipe 218, the extrusion port 212 is arranged at one side of the extrusion cavity 211 far away from the driving structure 23, the heating net 213 is arranged at the outer side of the extrusion cavity 211, the heat insulation layer 214 is arranged at the outer side of the heating net 213, the first screw 215 is arranged in the inner cavity of the extrusion cavity 211, the second screw 217 is arranged at one side of the first screw 215, the first screw 215 and the second screw 217 are both provided with the extrusion thread 216, the heating pipe 218 is arranged on the inner side of the heating net 213, the heating pipe 218 is respectively arranged on the outer sides of the first screw 215 and the second screw 217, the extrusion threads 216 arranged on the first screw 215 and the extrusion threads 216 arranged on the second screw 217 are staggered, the rotating directions of the first screw 215 and the second screw 217 are opposite, materials are continuously sheared and mixed longitudinally and transversely in the extrusion process, the plasticizing of chemical fibers is more uniform, the extrusion efficiency and quality are improved, the ventilation structure 22 comprises a cover shell 221, a second motor 222, a suction fan sheet 223, a ventilation pipe 224, a ventilation hood 225 and an air outlet 226, the second motor 222 is arranged on the top of the inner cavity of the cover shell 221, the suction fan sheet 223 is arranged at the lower end of the second motor 222, the ventilation pipe 224 is arranged at the lower end of the cover shell 221 and is communicated with the bottom of the cover shell 221, the air outlet 226 is arranged on the side wall of the extrusion cavity 211, the upper end setting of draft hood 225 is in the inner chamber of ventilation pipe 224, and the lower extreme of draft hood 225 runs through heat preservation 214 and heating net 213 and extrudes the cavity 211 intercommunication, and ventilation structure 22's setting prevents that the heat of screw rod internal surface can only gather inside it, causes the cracked phenomenon of screw rod easily after using for a long time, has prolonged the life of device, has practiced thrift manufacturing cost.

In summary, the following steps: the utility model provides a screw extruder that chemical fiber production used, including blanking structure 1 and extruder 2, the both ends of shield 121 are respectively through fixed rotation axis 122 and buckle structure 123 and the both sides wall swing joint at hopper 111 top, can prevent that dust in the air and dust that produce in the production process from getting into extruding the cavity 211 through hopper 111, influence the quality of chemical fiber production, the crisscross placement between the extrusion screw thread 216 that sets up on first screw 215 and the extrusion screw thread 216 that sets up of second screw 217, the direction of rotation between first screw 215 and the second screw 217 is opposite, the material constantly receives vertical horizontal shear mixing in the extrusion process, make chemical fiber plastify more evenly, the efficiency and the quality of extruding are improved, the upper end of hood 225 sets up the inner chamber at ventilation pipe 224, the lower extreme of hood 225 runs through heat preservation 214 and heating net 213 and extrudes the cavity 211 intercommunication, the ventilation structure 22 prevents the heat on the inner surface of the screw from only gathering in the screw, and the screw is easy to break after long-time use, so that the service life of the device is prolonged, and the production cost is saved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a screw extruder that chemical fiber production used, includes blanking structure (1) and extruder (2), and extruder (2) set up the lower extreme at blanking structure (1), its characterized in that: the blanking structure (1) comprises a stirring structure (11) and a dustproof structure (12), and the dustproof structure (12) is arranged at the upper end of the stirring structure (11); the stirring structure (11) comprises a hopper (111), a first motor (112), a stirring shaft (113) and a stirring rod (114), wherein the first motor (112) is arranged on one side of the hopper (111), the stirring rod (114) is arranged in an inner cavity of the hopper (111), and the stirring rod (114) is connected with the output end of the first motor (112) through the stirring shaft (113); the extruder (2) comprises an extrusion structure (21), a ventilation structure (22) and a driving structure (23), wherein the ventilation structure (22) is arranged at the upper end of the extrusion structure (21), and the driving structure (23) is arranged on one side of the extrusion structure (21); the extrusion structure (21) comprises an extrusion cavity (211), an extrusion port (212), a heating net (213), a heat-insulating layer (214), a first screw (215), an extrusion thread (216), a second screw (217) and a heating pipe (218), wherein the extrusion port (212) is arranged on one side of the extrusion cavity (211) far away from the structure of the driving structure (23), the heating net (213) is arranged on the outer side of the extrusion cavity (211), the heat-insulating layer (214) is arranged on the outer side of the heating net (213), the first screw (215) is arranged in the inner cavity of the extrusion cavity (211), the second screw (217) is arranged on one side of the first screw (215), the extrusion thread (216) is arranged on each of the first screw (215) and the second screw (217), and the heating pipe (218) is arranged on the inner side of the heating net (213), and the heating pipe (218) is respectively arranged at the outer sides of the first screw (215) and the second screw (217).

2. The screw extruder of claim 1, wherein the screw extruder is characterized in that: the dustproof structure (12) comprises a dustproof cover (121), a fixed rotating shaft (122) and a buckling structure (123), the fixed rotating shaft (122) is arranged on one side of the dustproof cover (121), the buckling structure (123) is arranged on the other side of the dustproof cover (121), and two ends of the dustproof cover (121) are movably connected with two side walls of the top of the hopper (111) through the fixed rotating shaft (122) and the buckling structure (123) respectively.

3. The screw extruder of claim 1, wherein the screw extruder is characterized in that: ventilation structure (22) include housing (221), second motor (222), suction fan piece (223), ventilation pipe (224), cowl (225) and air outlet (226), second motor (222) set up the top at housing (221) inner chamber, suction fan piece (223) set up the lower extreme at second motor (222), ventilation pipe (224) set up the lower extreme at housing (221), and communicate with the bottom of housing (221), air outlet (226) set up on the lateral wall of extruding cavity (211).

4. The screw extruder of claim 3, wherein the screw extruder is characterized in that: the upper end of the ventilation hood (225) is arranged in the inner cavity of the ventilation pipe (224), and the lower end of the ventilation hood (225) penetrates through the heat insulation layer (214) and the heating net (213) to be communicated with the extrusion cavity (211).

5. The screw extruder of claim 1, wherein the screw extruder is characterized in that: the extrusion threads (216) arranged on the first screw (215) and the extrusion threads (216) arranged on the second screw (217) are staggered.

6. The screw extruder of claim 2, wherein the screw extruder is characterized in that: the rotation directions of the first screw (215) and the second screw (217) are opposite.

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