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CN-121973411-A - Be used for fashioned hydraulic pressure injection molding equipment of bumper shock absorber rubber spare

CN121973411ACN 121973411 ACN121973411 ACN 121973411ACN-121973411-A

Abstract

The invention belongs to the technical field of injection molding, and particularly relates to hydraulic injection molding equipment for molding a shock absorber rubber part, which comprises a base, a hydraulic cylinder and a molding cavity, wherein the molding cavity and the hydraulic cylinder are fixedly arranged on the base, an injection molding pipe is connected between the molding cavity and the hydraulic cylinder, an opening and closing door is arranged on one side of the molding cavity, after the opening and closing door is closed, the inside of the molding cavity is in a closed state, an injection molding cavity is connected to an upper pipe of the injection molding pipe, the upper end of the injection molding cavity is connected with an external glue solution pipe, one side of the injection molding cavity is connected with a pressure relief pipe, the inside of the pressure relief pipe is provided with a pressure relief valve, and an intelligent control system is arranged inside the pressure relief valve and comprises a quantitative module and an opening and closing control module.

Inventors

  • LIU ZHEN

Assignees

  • 常州坚正橡塑制品有限公司

Dates

Publication Date
20260505
Application Date
20260227

Claims (9)

  1. 1. The hydraulic injection molding equipment for molding the rubber parts of the shock absorbers comprises a base (1), a hydraulic cylinder (2) and a molding cavity (3), and is characterized in that the molding cavity (3) and the hydraulic cylinder (2) are fixedly arranged on the base (1), and an injection molding pipe (4) is connected between the molding cavity and the hydraulic cylinder; one side of the molding cavity (3) is provided with an opening and closing door, after the opening and closing door is closed, the inside of the molding cavity (3) is in a closed state, an upper pipe of the injection molding pipe (4) is connected with an injection molding cavity (5), the upper end of the injection molding cavity (5) is connected with an external glue solution pipe, one side of the injection molding cavity (5) is connected with a pressure relief pipe (51), and a pressure relief valve is arranged in the pressure relief pipe (51); the inside of relief valve is provided with intelligent control system, intelligent control system includes ration module and opens and close control module, ration module and open and close control module electric connection, ration module is used for operating personnel to set up different injection molding volume according to fashioned bumper shock absorber rubber spare model, open and close control module is used for controlling the opening and close of relief valve according to the volume of moulding plastics.
  2. 2. The hydraulic injection molding equipment for forming the shock absorber rubber parts according to claim 1, wherein two supporting plates (52) are integrally formed on the inner wall of the injection molding cavity (5), a supporting column (53) is integrally formed above the supporting plate (52) below, an opening and closing plate (54) is sleeved on the outer side of the upper end of the supporting column (53), and a pin shaft (55) is connected between the opening and closing plate (54) and the supporting column (53); and a limiting plate (56) is arranged below one side of the opening and closing plate (54), and the limiting plate (56) is integrally formed on the inner wall of the injection molding cavity (5).
  3. 3. A hydraulic injection molding apparatus for molding a rubber member for a shock absorber according to claim 2, wherein a sleeve (57) is integrally molded on the left side of the upper support plate (52) and on the right side of the lower support plate (52), hydraulic oil is filled in the sleeve (57), a pressure sensor (571) is integrally molded on the inner wall of the sleeve (57), a compression bar (541) is integrally molded on the upper left side of the opening/closing plate (54), and the upper end of the compression bar (541) is slidably connected in the sleeve (57).
  4. 4. The hydraulic injection molding equipment for molding a rubber part of a shock absorber according to claim 3, wherein a pressure identification module is arranged in the pressure sensor (571) and is electrically connected with an opening and closing control module of the pressure release valve, the pressure identification module is used for identifying the pressure magnitude and the pressure application duration of the pressure sensor (571), and the opening and closing control module is further used for controlling the opening and closing of the pressure release valve according to the pressure magnitude and the pressure application duration.
  5. 5. A hydraulic injection molding apparatus for forming a rubber member for a shock absorber as set forth in claim 4, wherein a pressing rod (541) is integrally formed at the right lower side of said opening and closing plate (54) as well, and is slidably coupled to the inside of a sleeve (57) of the lower supporting plate (52).
  6. 6. A hydraulic injection molding device for forming a shock absorber rubber part according to claim 5, wherein a ring pipe (58) is inserted into the limiting plate (56), a compression bar (541) on the left side and the left side of the opening and closing plate (54) and a supporting plate (52) below, and the upper end and the lower end of the ring pipe (58) are respectively positioned in the two sleeves (57).
  7. 7. The hydraulic injection molding equipment for forming the shock absorber rubber parts according to claim 6, wherein a shaft lever (59) is rotatably connected to the bottom of the injection molding cavity (5), a gear (591) is integrally formed at one end of the shaft lever (59), and a plurality of tooth blocks are integrally formed at the outer side of the ring pipe (58) and meshed with the gear (591).
  8. 8. The hydraulic injection molding equipment for forming the shock absorber rubber parts according to claim 7, wherein grooves are formed in one side of the bottom of the injection molding cavity (5) and the outer end of the shaft rod (59) and are mutually matched, and a clamping block (592) is embedded in one groove.
  9. 9. The hydraulic injection molding equipment for molding the shock absorber rubber parts according to claim 8, wherein the middle of the opening and closing plate (54) is an arc surface, and the upper ends of the support posts (53) are spherical and are mutually matched with the arc surface of the opening and closing plate (54).

Description

Be used for fashioned hydraulic pressure injection molding equipment of bumper shock absorber rubber spare Technical Field The invention belongs to the technical field of injection molding, and particularly relates to hydraulic injection molding equipment for molding a shock absorber rubber part. Background With the continuous increase in the requirements of the automobile industry for shock absorbing performance, rubber members for shock absorbers are widely used for their excellent elasticity, damping characteristics and durability. The rubber parts are generally complex in structure and high in dimensional accuracy requirement, and have good mechanical properties and consistency, so that high requirements are put on the forming process of the rubber parts. The hydraulic injection molding equipment is used as key equipment for molding rubber parts, and the molding quality of products is directly affected by the stability of glue injection, the precision of mould locking and the pressure control capability. However, when the conventional general hydraulic injection molding equipment is applied to the molding of a shock absorber rubber part, the problems of unstable glue solution conveying, insufficient pressure maintaining control precision, unsmooth mold attachment and the like still exist, and the production requirements of high precision and high consistency are difficult to meet. Through searching, a hydraulic system and an injection molding machine with the publication number of CN118876366B are disclosed, and the authorized bulletin day is 2025, 3 and 11. According to the injection molding device, the independent mode locking loop and the injection loop are arranged, and the injection back pressure and the melt adhesive back pressure are regulated by the proportional overflow valve so as to improve injection molding efficiency. However, the technical scheme is mainly aimed at the efficient production of general plastic products, and does not consider the special rheological property of rubber materials in the high-temperature vulcanization process and the severe requirement on stable glue injection pressure. The back pressure control strategy is focused on the density adjustment of the melt adhesive, lacks a fine inhibition mechanism for the flow continuity and pressure fluctuation of the glue solution in the glue injection process, and is easy to cause defects such as uneven filling, bubbles or flash and the like when a high-viscosity rubber part (such as a shock absorber bushing) is formed, so that the sealing property and the mechanical property of the product are affected. After searching, a hydraulic injection molding machine with the publication number of CN117087117A is disclosed, and the publication date is 2023, 11 and 21. The patent adopts a multi-screw synchronous driving mold opening and closing mechanism, and aims to improve the bonding compactness of a movable mold and a fixed mold, thereby improving the molding quality of products. Although the scheme is improved in the aspect of mold closing uniformity, the core of the scheme focuses on a mechanical transmission structure, and key parameters in the hydraulic injection molding process, such as the glue injection speed, the holding pressure and the glue conveying stability, are not optimized in a targeted manner. For products with extremely high requirements on internal compactness and dimensional stability, such as shock absorber rubber parts, the improvement of the fitting of a mold is insufficient to solve the problems of shrinkage, shrinkage cavity and the like caused by the pulsation of glue solution or insufficient pressure maintaining, and the equipment does not integrate a dynamic pressure compensation function aiming at a rubber vulcanization period, so that the accurate molding control of the whole process is difficult to realize. The problems show that the conventional hydraulic injection molding equipment still has obvious defects in the aspects of stable glue solution conveying, accurate glue injection pressure regulation and control, accurate glue injection quantity control and the like when being applied to the molding of shock absorber rubber parts. Therefore, the invention provides hydraulic injection molding equipment for forming the rubber parts of the shock absorber, and aims to realize stable injection and accurate glue injection control of glue solution by optimizing the structure and control logic of a hydraulic system, so that the forming quality and production consistency of the rubber parts of the shock absorber are obviously improved. Disclosure of Invention The invention aims to provide hydraulic injection molding equipment for molding a shock absorber rubber part, so as to solve the problems in the background art. The hydraulic injection molding equipment for forming the shock absorber rubber parts comprises a base, a hydraulic cylinder and a forming cavity, wherein the forming cavity and the hydraulic cylin