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CN-121975305-A - Fiber reinforced plastic with gradient pore structure, circular loom propelling disc and manufacturing method thereof

CN121975305ACN 121975305 ACN121975305 ACN 121975305ACN-121975305-A

Abstract

The invention discloses a fiber reinforced plastic with a gradient pore structure, a circular weaving machine propelling disc and a manufacturing method thereof, wherein the circular weaving machine propelling disc is integrally manufactured by fiber reinforced plastic comprising matrix resin, reinforcing fibers, solid lubricating particles and pore generation particles through a vibration-assisted injection molding process, wherein the pore generation particles adopt hollow glass bead particles, the solid lubricating particles with higher density and the reinforcing fibers are deposited and enriched on a contact side of the bottom of the circular weaving machine propelling disc structure through a vibration process, the hollow glass bead particles with lower density are moved upwards and enriched on a non-contact side of the top of the circular weaving machine propelling disc structure to form the gradient pore structure, on one hand, the fiber reinforced plastic with the gradient pore structure greatly reduces the weight of the circular weaving machine propelling disc, and on the other hand, an effective wear-resisting system is formed based on the reinforcing fibers and the solid lubricating particles, namely the reinforcing fibers provide support to prevent plastic deformation, and the solid lubricating particles reduce friction energy consumption.

Inventors

  • WU ZHE

Assignees

  • 江西东升塑业有限公司

Dates

Publication Date
20260505
Application Date
20260210

Claims (11)

  1. 1. A circular loom propulsion disc, characterized in that it is made of a fiber reinforced plastic; The fiber reinforced plastic comprises the following components in parts by weight: a matrix resin; a part of reinforcing fibers; Solid lubricant particles.
  2. 2. The disc of claim 1, wherein the fiber reinforced plastic having a gradient pore structure further comprises, in parts by weight The pores produce particles.
  3. 3. The disc of claim 2, wherein the fiber reinforced plastic having a gradient pore structure further comprises, in parts by weight Antioxidant in parts by weight And (3) processing auxiliary agents.
  4. 4. A circular loom advancing disk according to claim 3, characterized in that the preparation steps of the fiber reinforced plastic with gradient pore structure are as follows: S101, passing the matrix resin, the solid lubricating particles, the pore generation particles, the antioxidant and the processing aid through a mixer to obtain Mixing at a low speed to obtain a premix, adding the obtained premix through a main feeding port of a double-screw extruder, adding the reinforced fibers through a side feeding port of the double-screw extruder, and melting, extruding, granulating, cooling and drying through the double-screw extruder to obtain fiber reinforced plastic particles; S102, melting the obtained fiber reinforced plastic particles by an injection molding machine, injecting and preheating After injection and before solidification of the melt, the frequency of the application to the forming mold is as follows Amplitude of is Is continuously subjected to mechanical vibration And (3) promoting the solid lubricating particles and the reinforcing fibers in the melt to settle and concentrate towards the inner bottom end of the forming die, promoting the pore generation particles to migrate and concentrate towards the inner top end of the forming die, and cooling and solidifying to obtain the fiber reinforced plastic with the gradient pore structure.
  5. 5. The disc of claim 4, wherein the reinforcing fibers and solid lubricant particles each have a density greater than the matrix resin and the void-generating particles have a density less than the matrix resin.
  6. 6. The disc of claim 5, wherein the matrix resin is one or more of polyamide, polyphenylene sulfide, polyoxymethylene, polyetheretherketone, polyurethane, and ultra-high molecular weight polyethylene.
  7. 7. The disc of claim 5, wherein the reinforcing fiber is of a length Chopped glass fibers of length of One or more of the carbon fibers of (a).
  8. 8. The disc of claim 5, wherein the solid lubricant particles are of a particle size Polytetrafluoroethylene particles of (a) having a particle diameter of Molybdenum disulfide particles with particle diameter of One or more of the graphite particles of (a).
  9. 9. The disc of claim 5, wherein the pore-forming particles are of a diameter Hollow glass microsphere particles of (a).
  10. 10. A push disk for a circular knitting machine as claimed in claim 5, characterized in that, The antioxidant adopts one or more of antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 168, antioxidant 626 and antioxidant P-EPQ; the processing aid adopts one or more of zinc stearate and silicone master batch.
  11. 11. A method for preparing a push disk for a circular weaving machine according to any one of claims 1 to 10, characterized by comprising the steps of: S201, injecting and preheating the fiber reinforced plastic particles prepared in the step S101 of claim 1 by an injection molding machine After injection is completed and before the melt is solidified, carrying out mechanical vibration treatment on the melt in the circular loom propulsion disc forming die by using the vibration parameters in the step S102 in the claim 1 to form component distribution from bottom to top; s202, cooling and solidifying to the demolding temperature, demolding to obtain a circular loom propelling disc blank, and trimming the pouring gate of the circular loom propelling disc blank to obtain a circular loom propelling disc finished product.

Description

Fiber reinforced plastic with gradient pore structure, circular loom propelling disc and manufacturing method thereof Technical Field The invention relates to the technical field of parts of circular weaving machines, in particular to fiber reinforced plastic with a gradient pore structure, a circular weaving machine propelling disc and a manufacturing method thereof. Background The circular loom is a core device for producing plastic woven bags, flexible bags and other products, a pushing disc is arranged on a door ring of the circular loom and is a core guide piece for guiding a weft yarn shuttle to do circular motion, and the performance of the pushing disc directly influences the running speed, energy consumption, noise level and maintenance cost of the circular loom. At present, steel or cast iron is generally adopted in the industry to manufacture a propelling disc through mechanical processing, the traditional technical scheme has the inherent defects of large weight, high density of metal materials, large inertia of moving parts, limitation of the accelerating potential of a circular loom, increase of driving energy consumption, serious noise pollution, sharp noise generated by friction between the metal propelling disc and a metal door ring and shuttle at high speed, deterioration of working environment, insufficient wear resistance and service life, easy wear of a contact surface under long-term high-load operation, frequent replacement of the propelling disc, high maintenance cost, dependence on lubrication and pollution risk, regular filling of lubricating oil for reducing wear and noise, influence of product quality due to oil stain pollution, increase of maintenance complexity and cost, low processing efficiency, long production period, low material utilization rate and high cost. Disclosure of Invention In order to solve the problems in the prior art, the invention aims to provide a fiber reinforced plastic with a gradient pore structure, a circular weaving machine propelling disc and a manufacturing method thereof. In order to achieve the above object, the present invention provides the following technical solutions: The invention provides a circular loom propelling disc, which is made of fiber reinforced plastic with a gradient pore structure, and the fiber reinforced plastic with the gradient pore structure comprises the following components in parts by weight: A matrix resin, Reinforcing fiber,Solid lubricating particles,The pores generate particles, Antioxidant in parts by weightThe processing aid comprises a processing aid, wherein the density of the reinforcing fibers and the density of the solid lubricating particles are larger than that of the matrix resin, and the density of the pore generation particles is smaller than that of the matrix resin, and the preparation steps of the fiber reinforced plastic with the gradient pore structure are as follows: S101, passing the matrix resin, the solid lubricating particles, the pore generation particles, the antioxidant and the processing aid through a mixer to obtain Mixing at a low speed to obtain a premix, adding the obtained premix through a main feeding port of a double-screw extruder, adding the reinforced fibers through a side feeding port of the double-screw extruder, and melting, extruding, granulating, cooling and drying through the double-screw extruder to obtain fiber reinforced plastic particles; S102, melting the obtained fiber reinforced plastic particles by an injection molding machine, injecting and preheating After injection and before solidification of the melt, the frequency of the application to the forming mold is as followsAmplitude of isIs continuously subjected to mechanical vibrationAnd (3) promoting the solid lubricating particles and the reinforcing fibers in the melt to settle and concentrate towards the inner bottom end of the forming die, promoting the pore generation particles to migrate and concentrate towards the inner top end of the forming die, and cooling and solidifying to obtain the fiber reinforced plastic with the gradient pore structure. In some embodiments, the matrix resin is a polyamide (density is) Polyphenylene sulfide (density is) Polyether ether ketone (density is) Polyoxymethylene (density is) Polyurethane (density is) Ultra high molecular weight polyethylene (density is) One or more of the following. In some embodiments, the reinforcing fibers are of a lengthChopped glass fibers (density of) Length ofCarbon fiber (density is) One or more of the following. In some embodiments, the solid lubricant particles are of a particle sizePolytetrafluoroethylene particles (density is) Particle size ofMolybdenum disulfide particles (density is) Particle size ofGraphite particles (density is) Wherein the polytetrafluoroethylene particles and graphite particles are of a relatively small density and thus require a sufficiently large particle size (particle size greater than) To provide sufficient migration