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CN-224224390-U - Material injection structure for composite material forming die

CN224224390UCN 224224390 UCN224224390 UCN 224224390UCN-224224390-U

Abstract

The utility model discloses a material injection structure for a composite material forming die, which comprises a bottom plate seat and a material injection mechanism, wherein a dehumidifying component is arranged on the material injection mechanism, the dehumidifying component comprises a material cylinder arranged on the bottom plate seat, a hot air pump is symmetrically arranged on the outer side of the material cylinder, a material distributing disc and a material distributing fan are rotatably arranged on the inner side of the material cylinder, the material distributing disc and the material distributing fan rotate oppositely, a rotatable anti-blocking roller is further arranged on the inner side of the material cylinder, the material injection mechanism is used for injecting a composite material in a molten state into a cavity of the die, hot air is blown into the material cylinder through the hot air pump to directly dry the composite material, and meanwhile, the design of the material distributing disc not only realizes uniform material distribution, but also further improves the dehumidifying effect by prolonging the residence time of the composite material in the material cylinder, and effectively prevents the adhesion and agglomeration of the material in the material cylinder and enables the hot air to be in full contact with the composite material.

Inventors

  • YAO ZHENHUA
  • LI DAWEI
  • ZHAO SHUTONG
  • ZHAO LINAN

Assignees

  • 吉林省华阳新材料研发有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (8)

  1. 1. The utility model provides a annotate material structure for combined material forming die, includes bottom plate seat (1) and notes material mechanism, its characterized in that, be provided with dehumidification subassembly on annotating the material mechanism, dehumidification subassembly includes be provided with feed cylinder (9) on bottom plate seat (1), hot air pump (7) are installed to the outside symmetry of feed cylinder (9), the inboard rotation of feed cylinder (9) is provided with feed divider (104) and branch fan (101), feed divider (104) and branch fan (101) rotate in opposite directions, the inboard of feed cylinder (9) still is provided with rotatable anti-blocking roller (105), hot air pump (7) are used for blowing in hot air to the inside of feed cylinder (9) to dry the combined material, feed divider (104) are used for evenly dividing the material and improve the dwell time of combined material in feed cylinder (9) simultaneously, branch fan (101) are used for scattering the combined material; The injection mechanism is used for injecting the composite material in a molten state into a cavity of the die to complete injection molding.
  2. 2. The material injecting structure for the composite material forming die according to claim 1, wherein the material injecting mechanism comprises a material injecting motor (6) and a hydraulic cylinder (5) which are respectively installed on a base plate seat (1), the output end of the material injecting motor (6) is fixedly connected with a driving gear (61), the output end of the hydraulic cylinder (5) is fixedly connected with a screw feeding roller (11), a driven gear (51) is arranged on the outer side of the screw feeding roller (11) in a sliding manner, the driving gear (61) and the driven gear (51) are meshed with each other, a clamping seat (52) is fixedly connected on the base plate seat (1), the clamping seat (52) is connected with the driven gear (51), and the driven gear (51) and the clamping seat (52) slide relatively.
  3. 3. The material injection structure for the composite material forming die according to claim 2, wherein a material bin table (4) is fixedly connected to the bottom plate seat (1), an extrusion cylinder (2) is fixedly connected to the inner side of the material bin table (4), a plurality of heating rings (3) are fixedly connected to the outer side of the extrusion cylinder (2), and a spiral end of the spiral feeding roller (11) is rotatably arranged in the extrusion cylinder (2).
  4. 4. The material injecting structure for the composite material forming die according to claim 1, wherein the dehumidifying component further comprises two hot air pumps (7) fixedly connected to the bin table (4), two ventilating pipes (8) are fixedly connected between the two hot air pumps (7), the ventilating pipes (8) are communicated with the charging barrels (9), a discharging pipe (12) is fixedly connected to the bottom of the charging barrels (9), and the discharging pipe (12) is fixedly connected with the extruding barrels (2).
  5. 5. The material injecting structure for the composite material forming die according to claim 4, wherein the first transmission shaft (102) and the second transmission shaft (103) are rotationally connected to the bottom plate seat (1), the first transmission shaft (102) is rotationally arranged on the inner side of the second transmission shaft (103), a first driven flywheel (114) is mounted at the end part of the first transmission shaft (102) extending to the outer side of the charging barrel (9), a second driven flywheel (115) is mounted at the end part of the second transmission shaft (103) extending to the outer side of the charging barrel (9), the second driven flywheel (115) is located at the bottom of the first driven flywheel (114), the outer side of the first transmission shaft (102) is fixedly connected with the anti-blocking roller (105) and the material distributing fan (101), and the second transmission shaft (103) is fixedly connected with the material distributing disc (104).
  6. 6. The material injecting structure for the composite material forming die according to claim 5, wherein a dehumidifying motor (10) is installed on the outer side of the charging barrel (9), an output end of the dehumidifying motor (10) is fixedly connected with a driving main flywheel (106), a second rotating rod (109) and a first rotating rod (110) are respectively connected to the top of the charging barrel (9) in a rotating mode, a driving auxiliary flywheel (108) is fixedly connected to the outer side of the second rotating rod (109), and a driving belt (107) is sleeved between the driving main flywheel (106) and the driving auxiliary flywheel (108).
  7. 7. The material injection structure for the composite material forming die according to claim 6, wherein the outer sides of the second rotating rod (109) and the first rotating rod (110) are respectively provided with a turning gear (111), the two turning gears (111) are meshed with each other, the outer side of the second rotating rod (109) is fixedly connected with a second driving flywheel (112), and a second driving belt (113) is sleeved between the second driving flywheel (112) and the second driven flywheel (115).
  8. 8. The material injection structure for the composite material forming die according to claim 7, wherein a first driving flywheel (117) is fixedly connected to the outer side of the first rotating rod (110), and a first transmission belt (116) is sleeved between the first driving flywheel (117) and the first driven flywheel (114).

Description

Material injection structure for composite material forming die Technical Field The utility model relates to the technical field of composite material product production, in particular to a material injection structure for a composite material forming die. Background Composite article production is a process whereby two or more materials of different properties (e.g., fibers and resins) are combined under specific process conditions to form a product having excellent overall properties. The core steps include prepreg preparation (the fiber is impregnated with resin to form a preform), mold forming (the resin is injected into a mold cavity by using an injection structure and is formed by vacuum assistance or pressure curing), and post-treatment (demolding, trimming, surface treatment and the like). In the production process, the temperature, pressure and time parameters are required to be accurately controlled, the materials are ensured to be fully infiltrated and solidified, the defects of pores, layering and the like are avoided, and in the composite material forming die, a material injection structure is responsible for injecting the mixed materials (such as resin mixed materials) into a cavity of the die so as to ensure the quality of products. Most of traditional material injection structures adopt a screw feeding roller to extrude the composite material in a molten state, and the composite material in the molten state is extruded into a cavity of a die to complete injection molding. Therefore, in the process of transferring the composite material into the injection structure, especially in the process of transferring the fiber reinforced composite material, the matrix material (such as resin) of the composite material tends to have certain hygroscopicity, when the composite material is in an environment containing water vapor, water molecules can diffuse into the material and be absorbed by the matrix material, the water molecules can become water vapor after being heated by entering the injection structure, and the air bubbles can possibly follow the composite material under melting into the cavity of the mold, so that the product contains air bubbles inside, and the product quality is affected. Disclosure of utility model The utility model aims to solve the defect that the composite material is easy to absorb water to cause foaming of a product in the prior art, and provides a material injection structure for a composite material forming die. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a annotate material structure for combined material forming die, includes bottom plate seat and notes material mechanism, annotate and be provided with dehumidification subassembly on the material mechanism, dehumidification subassembly includes be provided with the feed cylinder on the bottom plate seat, the hot air pump is installed to the outside symmetry of feed cylinder, the inboard rotation of feed cylinder is provided with feed divider and branch material fan, feed divider and branch material fan rotate in opposite directions, the inboard of feed cylinder still is provided with rotatable anti-blocking roller, the hot air pump is used for blowing in hot air to the feed cylinder inside and carries out the drying to combined material, the feed divider is used for evenly dividing the material while improving the dwell time of combined material in the feed cylinder, divide the material fan to be used for breaking up combined material; The injection mechanism is used for injecting the composite material in a molten state into a cavity of the die to complete injection molding. The technical scheme further comprises the following steps: The feeding mechanism comprises a bottom plate seat, a feeding motor and a hydraulic cylinder are respectively arranged on the bottom plate seat, the output end of the feeding motor is fixedly connected with a driving gear, the output end of the hydraulic cylinder is fixedly connected with a screw feeding roller, a driven gear is arranged on the outer side of the screw feeding roller in a sliding mode, the driving gear and the driven gear are meshed with each other, a clamping seat is fixedly connected to the bottom plate seat, the clamping seat is connected with the driven gear in a clamping mode, and the driven gear and the clamping seat slide relatively. The screw feeding device is characterized in that a feed bin table is fixedly connected to the bottom plate seat, an extrusion cylinder is fixedly connected to the inner side of the feed bin table, a plurality of heating rings are fixedly connected to the outer side of the extrusion cylinder, and the screw end of the screw feeding roller is rotatably arranged in the extrusion cylinder. The dehumidification assembly further comprises two hot air pumps which are fixedly connected to the stock bin, a vent pipe is fixedly connected between the two hot a