Tubular composite material product forming mold

Abstract

A tubular composite product forming die comprises an upper die and a lower die, both the upper die and the lower die are provided with profiled grooves, the two ends of each profiled groove extend out of the upper die and the lower die, a left fixing plate is arranged at the left ends of the upper die and the lower die, a right fixing plate is arranged at the right ends of the upper die and the lower die, and the left fixing plate and the right fixing plate are detachably fixed to the upper die and the lower die. An installation groove hole is formed in the left fixing plate, an air bag inflation connector is clamped in the installation groove hole, the right end of the air bag inflation connector is communicated with the profiled groove, and an air bag matched with the tubular product is arranged at the right end of the air bag inflation connector; a plurality of fixing through holes are formed in the upper die and the lower die at intervals, fixing bolts are arranged in the fixing through holes, and the upper die and the lower die are detachably and fixedly connected through the fixing bolts and fixing nuts. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of the production of tubular material products, and particularly relates to a forming die for tubular composite material products. Background Art

[0002] Composites have successively developed high-strength and high-modulus fibers such as carbon fibers, graphite fibers, and boron fibers, aramid fibers, and silicon carbide fibers from ancient times to the present. These high-strength and high-modulus fibers can be combined with non-metallic matrices such as synthetic resins, carbon, graphite, ceramics, rubber, or metal matrices such as aluminum, magnesium, and titanium to form composites with unique characteristics. Among them, the most widely used and important one is fiber-reinforced resin-based composites. According to the different shapes of products, there are various forming processes for fiber-reinforced resin-based composites. Among them, tubular products are formed by extrusion, which has the advantages of simple operation, low cost, and wide application range. However, when the existing forming die for tubular composite material products is in production, it is easy to have poor contact with the upper die and the lower die. During the heating process of the upper die and the lower die, the composite material is unevenly heated, and the heating and curing forming efficiency is low, which even affects the quality of the tubular composite material products. Therefore, during the production of existing tubular composite material products, the production efficiency is low and the production quality needs to be improved. Summary of the Utility Model

[0003] In order to solve the technical problem that the existing tubular composite material products are slow in forming and poor in production quality during production, the utility model provides a forming die for tubular composite material products, which includes an upper die and a lower die. Both the upper die and the lower die are provided with mold cavities adapted to the tubular products to be produced, and the mold cavities can be set in different shapes according to the shapes of the tubular products to be produced. Both ends of the mold cavity extend out of the upper die and the lower die. A left fixing plate is provided at the left end of the upper die and the lower die, and a right fixing plate is provided at the right end of the upper die and the lower die. The left fixing plate and the right fixing plate are detachably fixed on the upper die and the lower die. An installation slot hole is provided on the left fixing plate, and an airbag inflation joint is clamped in the installation slot hole. The right end of the airbag inflation joint is communicated with the mold cavity. A right end of the airbag inflation joint is provided with an airbag adapted to the tubular product (the airbag is not shown in the attached drawings of the specification. The function of the airbag is to exert an extrusion effect on the carbon fiber prepreg in the inflated state, which can accelerate the heating and curing of the carbon fiber prepreg, and improve the production efficiency and production quality. A plurality of uniformly spaced fixing through holes are provided on both the upper die and the lower die, and fixing bolts are provided in the fixing through holes. The upper die and the lower die are detachably fixedly connected by the fixing bolts and fixing nuts. The upper die and the lower die are detachably fixed together by the fixing bolts and fixing nuts, which can improve the stability of the upper die and the lower die and prevent the upper die and the lower die from being misaligned.

[0004] Preferably, the length of the mold cavity is longer than the length of the tubular product.

[0005] Preferably, limit blocks for limiting are provided on both the upper die and the lower die, and the limit blocks are located at both ends of the mold cavity.

[0006] Preferably, the airbag inflation joint includes an upper clamping joint and a lower clamping joint, both of which are detachably clamped in the installation slot holes on the left fixing plate, facilitating disassembly.

[0007] Preferably, semi-circular ventilation openings are provided on both the upper clamping joint and the lower clamping joint.

[0008] The above solution has the following advantages:

[0009] The upper die and the lower die are detachably fixed together by fixing bolts and fixing nuts, which can improve the stability of the device during use and reduce the defective product rate of the products caused by the misalignment of the upper die and the lower die; the airbag inflation joint provided on the left fixing plate facilitates inflating the airbag; the setting of the airbag, in the inflated state, has an extrusion effect on the carbon fiber prepreg, which can accelerate the heating and curing of the carbon fiber prepreg and improve the production efficiency and production quality. Description of the Drawings

[0010] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0011] Figure 2 is an exploded structural schematic diagram of the present utility model;

[0012] Figure 3 is a top-view structural schematic diagram of the present utility model;

[0013] Figure 4 is Figure 3 a sectional structural schematic diagram taken along the A-A direction of

[0014] Figure 5 is a structural schematic diagram of the left fixing plate;

[0015] Figure 6 is a structural schematic diagram of the airbag inflation joint and the airbag.

[0016] Reference numerals: 1, upper die; 2, lower die; 3, left fixing plate; 4, right fixing plate; 5, airbag inflation joint; 6, airbag; 7, tubular product; 11, mold cavity; 21, fixing through hole; 22, fixing bolt; 23, fixing nut; 24, limiting block; 31, installation slot hole; 51, upper clamping joint; 52, lower clamping joint. Detailed Embodiments

[0017] As Figures 1-6As shown in the figure, a forming mold for a tubular composite product includes an upper mold 1 and a lower mold 2. Both the upper mold 1 and the lower mold 2 are provided with mold cavities 11 adapted to the tubular product 7 to be produced. The mold cavities 11 can be set in different shapes according to the shape of the tubular product 7 to be produced. Both ends of the mold cavity 11 extend out of the upper mold 1 and the lower mold 2. A left fixing plate 3 is provided at the left end of the upper mold 1 and the lower mold 2, and a right fixing plate 4 is provided at the right end of the upper mold 1 and the lower mold 2. The left fixing plate 3 and the right fixing plate 4 are detachably fixed to the upper mold 1 and the lower mold 2. An installation slot hole 31 is provided on the left fixing plate 3, and an airbag inflation joint 5 is clamped in the installation slot hole 31. The right end of the airbag inflation joint 5 is communicated with the mold cavity 11. The right end of the airbag inflation joint 5 is provided with an airbag 6 adapted to the tubular product 7 (the airbag is not shown in the attached drawing of the specification. The function of the airbag is to exert a squeezing effect on the carbon fiber prepreg in the inflated state, which can accelerate the heating and curing of the carbon fiber prepreg and improve the production efficiency and quality. A number of evenly spaced fixing through holes 21 are provided on both the upper mold 1 and the lower mold 2. Fixing bolts 22 are provided in the fixing through holes 21. The upper mold 1 and the lower mold 2 are detachably fixedly connected by the fixing bolts 22 and fixing nuts 23, which can improve the stability of the upper mold 1 and the lower mold 2 and prevent the upper mold 1 and the lower mold 2 from being misaligned.

[0018] Preferably, the length of the mold cavity 11 is longer than the length of the tubular product 7.

[0019] Preferably, limit blocks 24 for limiting are provided on both the upper mold 1 and the lower mold 2, and the limit blocks 24 are located at both ends of the mold cavity.

[0020] Preferably, the airbag inflation joint 5 includes an upper clamping joint 51 and a lower clamping joint 52. Both the upper clamping joint 51 and the lower clamping joint 52 can be detachably clamped in the installation slot hole 31 on the left fixing plate 3, which is convenient for disassembly.

[0021] Preferably, semi-circular ventilation ports are provided on both the upper clamping joint 51 and the lower clamping joint 52.

[0022] Usage process:

[0023] When the present utility model is in use, first, the left fixing plate 3 and the right fixing plate 4 are respectively removed, then the fixing nuts 23 and fixing bolts 22 of the upper mold 1 and the lower mold 2 are sequentially removed. Then, the carbon fiber prepregs are respectively laid in the mold cavities 11 on the upper mold 1 and the lower mold 2. Then, the airbag 6 is placed on the carbon fiber prepreg in the mold cavity 11 on the lower mold 2. The upper mold 1 is buckled with the lower mold 2, and then the fixing bolts 22 and the fixing nuts 23 are sequentially fixed. The airbag inflation joint is connected to the airbag 6, and the left fixing plate 3 and the right fixing plate 4 are then fixed. Then, the airbag 6 is inflated through an air pump until the airbag 6 presses tightly against the carbon fiber prepreg. Then, the upper mold 1 and the lower mold 2 are placed on a hot press for heat treatment. Finally, the carbon fiber prepreg is heated and cured into a shape. After the tubular product 7 is formed, the mold can be removed.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] The above embodiments are illustrative of the present utility model and not restrictive thereof. Any scheme obtained by simply transforming the present utility model falls within the protection scope of the present utility model.

Claims

1. A tubular composite product forming mold, comprising an upper mold and a lower mold, both of which are provided with a groove adapted to the tubular product to be produced, characterized in that: An upper die and a lower die are extended from both ends of the molding groove, a left fixing plate is provided at the left end of the upper die and the lower die, a right fixing plate is provided at the right end of the upper die and the lower die, the left fixing plate and the right fixing plate are detachably fixed to the upper die and the lower die, a mounting slot hole is provided on the left fixing plate, an airbag inflation connector is clamped in the mounting slot hole, the right end of the airbag inflation connector is connected to the molding groove, and an airbag compatible with the tubular product is provided at the right end of the airbag inflation connector.

2. A tubular composite material product forming mold according to claim 1, characterized in that: The upper die and the lower die are both provided with a plurality of fixed through holes which are arranged at intervals, and the fixed through holes are provided with fixing bolts. The upper die and the lower die are detachably fixedly connected by the fixing bolts and fixing nuts.

3. The tubular composite material product forming mold according to claim 1, characterized in that: The length of the groove is longer than the length of the tubular product.

4. A tubular composite material product forming mold according to claim 3, characterized in that: Limit blocks for limiting the position are arranged on the upper die and the lower die, and the limit blocks are located at both ends of the groove.

5. The tubular composite material product forming mold according to claim 1, characterized in that: The airbag inflation connector comprises an upper clamp connector and a lower clamp connector, and both the upper clamp connector and the lower clamp connector can be detachably clamped in the mounting slot hole on the left fixing plate.

6. A tubular composite material product forming mold according to claim 5, characterized in that: Semicircular vents are provided on the upper clamping joint and the lower clamping joint.

Images