CN-121004695-B - Reducing mechanism for regenerated polyester staple fiber

Abstract

The invention relates to the field of fiber crushing, and discloses a crushing device for regenerated polyester staple fibers, which comprises a crushing box and a controller, wherein one side of the crushing box is provided with a power box, a driving module is arranged in the power box, two meshed crushing rollers are arranged in the crushing box, one side of the crushing box is provided with a rotary type step crusher, after polyester clothes are processed into fragments, the steps are conveyed into a pretreatment box arranged at the top end of the crushing box through a lifting machine, the pretreatment box is communicated with a feed inlet arranged at the top of the crushing box, a discharge hole is formed at the bottom of the crushing box, a crushing cavity is formed in the middle of the crushing box, the crushing rollers are positioned in the crushing cavity, the inner diameter of the feed inlet is larger than the discharge hole, and the inner diameter of the crushing cavity gradually decreases from top to bottom. According to the invention, toughness of the polyester chips is effectively reduced through steam softening pretreatment, molecular chains are relaxed, mechanical stress required by subsequent crushing is obviously reduced, and the conical crushing cavity is arranged to combine with progressive compression space, so that the chips are gradually thinned, and overcrushing is avoided.

Inventors

• CHEN GUANGBIN
• GUO CHENGFENG
• GUO HUALIAN

Assignees

• 连云港创立新材料有限责任公司

Dates

Publication Date

20260512

Application Date

20250731

Claims (3)

1. 1. The crushing device for the regenerated polyester short fibers comprises a crushing box and a controller, wherein one side of the crushing box is provided with a power box, a driving module is arranged in the power box, and two crushing rollers meshed with each other are arranged in the crushing box; The device is characterized in that a rotary cloth crusher is arranged on one side of a crushing box, after polyester clothes are processed into fragments, the crushed cloth is conveyed into a pretreatment box arranged at the top end of the crushing box through a lifter, the pretreatment box is communicated with a feed inlet formed in the top of the crushing box, a discharge outlet is formed in the bottom of the crushing box, a crushing cavity is formed in the middle of the crushing box, a crushing roller is positioned in the crushing cavity, the inner diameter of the feed inlet is larger than that of the discharge outlet, and the inner diameter of the crushing cavity gradually decreases from top to bottom; A steam softening assembly is arranged in the pretreatment box; The steam softening assembly can spray steam at 60-80 ℃ to sheared fragments, an inclined guide plate is arranged at the bottom of the pretreatment box, and strip-shaped air holes are formed in the surface of the inclined guide plate and used for discharging redundant steam and guiding materials to enter the feed inlet; The steam softening assembly comprises: The steam generation unit comprises a steam storage tank and an electric heating steam generator positioned in the steam storage tank, an electromagnetic valve is arranged at the outlet of the steam storage tank, and the steam generation unit is arranged at one side of the crushing box; The steam jet unit comprises an annular steam main pipe and a plurality of branch nozzles, the annular steam main pipe is circumferentially arranged along the top of the inner side wall of the pretreatment box, the outlet of the steam storage tank is connected with the annular steam main pipe through a hose, and the branch nozzles are arranged on the annular steam main pipe and incline downwards, so that steam sprayed by the branch nozzles covers polyester clothing fragments; The inside of the feed inlet is provided with a pressing component which is used for pressing the pre-treated polyester clothing fragments to the crushing roller in the crushing cavity so as to accelerate the crushing of the polyester clothing fragments; The pressing assembly comprises an automatic telescopic rod, a cylinder body part of the automatic telescopic rod is arranged in a power box, a telescopic end part of the automatic telescopic rod is fixed on a sliding plate, the sliding plate is in sliding connection in a sliding groove part, the sliding groove part is arranged on the inner side wall of a crushing box, an L-shaped groove is arranged in the sliding groove part, the short side of the L-shaped groove is vertically arranged, the long side of the L-shaped groove is horizontally arranged, and a transverse shaft is in sliding connection in the L-shaped groove; The end part of the transverse shaft penetrates through the sliding plate and then is fixedly provided with a lifting column, the bottom of the lifting column is fixedly provided with a counterweight pressing plate, the counterweight pressing plate is positioned right above the meshing areas of the two crushing rollers, and the position of the sliding plate corresponding to the transverse shaft is provided with a chute; The inclined guide plate is rotatably arranged on the inner side wall of the pretreatment box through a hinge shaft, the top end of the inclined plate is arranged into a bending structure and is contacted with the free end of the inclined guide plate, and the inclined guide plate is pushed to carry out self-adaptive angle adjustment along with the working state of the counterweight pressing plate through the left-right displacement of the inclined plate; The inclined guide plate is also provided with a plurality of uniformly distributed raised strips, and the raised strips and the strip-shaped air holes are distributed in a staggered manner; The free end of the inclined guide plate is also hinged with a pull rope, the other end of the pull rope penetrates through the pretreatment box and the crushing box and is positioned right below the meshing area of the two crushing rollers, and an arch part is fixedly connected with the pull rope, and the arch part is pulled to move up and down through the angle change of the inclined guide plate.
2. 2. The device for pulverizing the regenerated polyester staple fibers according to claim 1, wherein the driving module comprises a servo motor, the servo motor is arranged in the power box, the servo motor is in transmission connection with a main gear, the main gear is meshed with a slave gear, and the main gear and the slave gear are respectively fixed on connecting shafts corresponding to the two pulverizing rollers, so that the servo motor drives the two pulverizing rollers to bite the pulverized raw materials.
3. 3. The pulverizing apparatus for regenerated polyester staple fibers according to claim 2, wherein two pressing members are symmetrically provided, and two cross shafts are integrally and fixedly connected as a whole.

Description

Reducing mechanism for regenerated polyester staple fiber Technical Field The invention relates to the field of fiber crushing, in particular to a crushing device for regenerated polyester staple fibers. Background The production of the regenerated polyester staple fibers takes waste polyester materials such as mineral water bottles, polyester clothes, industrial waste and the like as raw materials, and a crushing device is particularly important in the process, and the function of the crushing device is to provide raw material forms meeting requirements for subsequent regeneration processing. On one hand, the waste polyester material has various forms, large volume and irregularity, so that the waste raw material needs to be crushed, the waste polyester material is convenient to process and transport, and meanwhile, the cleaning and separating effects can be improved. Meanwhile, the production of the regenerated polyester staple fibers needs to melt broken polyester chips into a melt, and then spinning and forming are carried out, if large materials exist in the crushing, the melting efficiency is reduced, and if the materials are heavy, the feed inlet of melting equipment is blocked, so that the production continuity is affected, and in the summary, the crushing device is an important pre-step in the production of the regenerated polyester staple fibers. The existing smashing device has some defects, for example, the terylene fibers of the wheel-washing clothes can be stretched and deformed rather than directly broken when being subjected to shearing force due to the high toughness and high breaking elongation of the terylene clothes, meanwhile, most of the existing smashing devices adopt shearing impact type equipment aiming at hard polyester materials, the shearing force is insufficient, a large amount of slender fibers are generated comprehensively, on one hand, the slender fibers are easy to wind into clusters during subsequent cleaning to form cleaning dead areas, the impurity separation efficiency is affected, on the other hand, the slender fibers are heated and have abnormal flow properties due to irregular forms after entering a melting stage, so that the melting and spinning procedures are disturbed, and the quality of regenerated fibers is reduced, so that the problem needs to be solved. Disclosure of Invention The invention aims to provide a crushing device for regenerated polyester staple fibers, which solves the technical problem that a large number of slender fibers are generated in the crushing process of polyester clothes, and the subsequent cleaning, separating and melt spinning processes are affected. The aim of the invention can be achieved by the following technical scheme: The crushing device for the regenerated polyester short fibers comprises a crushing box and a controller, wherein one side of the crushing box is provided with a power box, a driving module is arranged in the power box, and two crushing rollers meshed with each other are arranged in the crushing box; Crushing case one side sets up rotation type hacking machine, after the piece is handled into with dacron clothing, carry the garrulous step to the pretreatment incasement that crushing case top was provided with through the lifting machine, pretreatment case and crushing case top feed inlet intercommunication that have been seted up, crushing case bottom has seted up the discharge gate, crushing case middle part sets up to smash the chamber, smash the roller and lie in smashing the intracavity, the internal diameter of feed inlet is greater than the discharge gate, and smash the internal diameter in chamber from last to decreasingly down. Further, a steam softening assembly is arranged in the pretreatment box; The steam softening assembly can spray steam at 60-80 ℃ to sheared fragments, an inclined guide plate is arranged at the bottom of the pretreatment box, and strip-shaped air holes are formed in the surface of the inclined guide plate and used for discharging redundant steam and guiding materials to enter the feed inlet. Further, the steam softening assembly comprises: The steam generation unit comprises a steam storage tank and an electric heating steam generator positioned in the steam storage tank, an electromagnetic valve is arranged at the outlet of the steam storage tank, and the steam generation unit is arranged at one side of the crushing box; The steam jet unit comprises an annular steam main pipe and a plurality of branch jet heads, wherein the annular steam main pipe is circumferentially arranged along the top of the inner side wall of the pretreatment tank, the outlet of the steam storage tank is connected with the annular steam main pipe through a high-temperature-resistant hose, and the branch jet heads are arranged on the annular steam main pipe and incline downwards, so that steam jetted by the branch jet heads covers polyester clothes fragments. Further, the pressing component is arranged in the f