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Winding forming die for small-opening composite material container

A composite material, winding molding technology, used in household appliances, other household appliances, household components, etc., can solve the problems of low dimensional accuracy of products, easy formation of air holes, large span of flap molds, etc., and achieve high dimensional accuracy and stability of molds. Good, repeatable assembly effect

Active Publication Date: 2017-03-22
SHANDONG NON METALLIC MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of mold has the following disadvantages: 1. Difficulty in mold forming and demoulding; 2. This type of mold is a one-time lost foam, which cannot be reused, and it is easy to cause poor product quality consistency; 3. The surface finish of the mold is not high. Pores are easy to form on the inner surface of the product
For containers with small openings and large slenderness ratios, the span of the flap mold is large, and extrusion at both ends may easily cause mold deformation, resulting in low dimensional accuracy of the product

Method used

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  • Winding forming die for small-opening composite material container
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  • Winding forming die for small-opening composite material container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take the small-mouth container winding mold with an inner diameter of 180mm, a length of 1200mm, and an opening of 125mm as an example. The mold assembly structure is shown in the attached figure 2 shown.

[0026] The outer diameter of the mandrel is φ100mm, the total length is 1600mm, and the preset positioning steps are φ75mm at two places 320mm from the reference positioning end and 130mm from the locking positioning end.

[0027] The total length of the valve mold is 1200mm, the combined outer diameter is φ180mm, and the thickness is 12mm. The support pile is located in the middle of the valve mold, and the length is 20mm. The width is 91.3mm, the narrow petal is a rectangular petal, the width is 46.4mm, the supporting pile structure of the petal mold is as attached Figure 5 As shown, the split structure is as shown in Figure 8. The inner side of the base positioning end of the valve mold is symmetrically processed with φ111mm as the center, and the circular tra...

Embodiment 2

[0034] Take the small mouth container winding molding mold with an inner diameter of φ161mm, a length of 533mm, an opening of the reference positioning end of φ58mm, and an opening of the locking positioning end of φ110mm as an example. The mold assembly structure is as follows Figure 7 shown.

[0035] The outer diameter of the mandrel is φ69mm, and the total length is 925mm. The preset positioning steps are φ63mm at 225mm from the reference positioning end and 248.5mm from the locking positioning end, and the length is 20mm. 230mm respectively prefabricated φ60mm metal parts installation positioning step 22, the length is 20mm; at 130mm from the reference positioning end and 221mm from the locking positioning end, respectively preset M56×2 installation metal parts thread 23, the length is 20mm .

[0036]The total length of the valve mold is 463mm, the combined outer diameter is φ161mm, and the thickness is 8mm. One support pile is set in the middle position, and the length ...

Embodiment 3

[0043] Take the small-mouth container winding molding mold with an inner diameter of φ225mm, a length of 1500mm, and openings of both the reference positioning end and the locking positioning end of φ98.5mm as an example. The mold assembly structure is shown in the attached Figure 4 shown.

[0044] The outer diameter of the mandrel is φ53mm, and the total length is 1826.8mm. The preset positioning steps are φ48.3mm at two places 192.5mm away from the reference positioning end and 192.5mm away from the locking positioning end, and the length is 13.8mm. The positioning end 178.6mm prefabricated the metal parts installation positioning step φ43.3mm, the length is 24.7; the M40×2 thread of the metal parts is pre-installed at the two positions 153.9mm from the reference positioning end and the locking positioning end, the length Both are 20mm.

[0045] The total length of the valve mold is 1362.3mm, the combined outer diameter is φ225mm, and the thickness is 20.9mm. There are 2 s...

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Abstract

The invention belongs to the technical field of forming of composite material products. Stress deformation generated in a die assembling process while the positioning of a clack die is realized by adopting traction positioning; and by means of a positioning mode combined with supporting positioning, the aims of reducing the weight of the die and guaranteeing the precision of a product at the same time are achieved. A winding forming die for a small-opening composite material container, disclosed by the invention, consists of a clack die, a mandrel and a clack die positioning mechanism; and the clack die is positioned by adopting a traction mode, a reference positioning end is internal positioning and a locking positioning end is external positioning. The winding and forming die has the advantages of light weight, high dimensional precision, good stability, convenience in use and capabilities of being repeatedly assembled and used. The winding and forming die is suitable for winding forming of a small-opening container and is particularly suitable for winding forming of a large-sized small-opening container with a great slenderness ratio.

Description

technical field [0001] The invention belongs to the technical field of composite material product molding, and relates to a pressure vessel molding technology, in particular to a winding molding technology of a composite material pressure vessel with a large slender ratio, a large mouth, and high dimensional precision. Background technique [0002] Filament winding container has been applied in more and more fields due to its strong structure design, light weight and high strength. The common characteristics of this type of container are large closing ends, large slenderness ratio, and high dimensional accuracy requirements. [0003] At present, there are mainly two types of molds used for winding and forming such products: one is a one-time lost foam molded by sand foundry, and adhesives are used to bond granular objects such as sand or glass beads into one body. Process the internal shape of the product to make a winding mold. After the product is formed, dissolve the adh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/54B29C33/00B29C33/48
CPCB29C33/00B29C33/48B29C70/54B29L2031/712
Inventor 孙士祥郑志才孟祥武陈艳王强王尚汤振娟王树伦
Owner SHANDONG NON METALLIC MATERIAL RES INST
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