Mold for quick injection molding of fan blades

Abstract

The invention discloses a mold for quick injection molding of fan blades. The mold comprises a mold body and an upper mold matched with the mold body, wherein fan blade injection molding grooves are formed in the mold body; cold water flowing pipelines are arranged in the mold body, and positioned at the bottoms of the fan blade injection molding grooves; a pull ring is fixed on the side surface of the mold body. The mold has the advantages that a cooling effect is good, the cooling and forming speed of the fan blades can be increased, and the production efficiency of the fan blades can be improved.

Description

technical field

[0001] The invention relates to an injection mold, in particular to a mold for rapid injection molding of fan blades. Background technique

[0002] Fan blades have complex shapes, uneven wall thickness, high dimensional accuracy requirements, and high surface quality and dimensional stability requirements. Most of the fan blades are made of plastic, which are generally made by injection molding. And injection molding has the following advantages: almost no complexity restrictions, allowing different thermoplastic parts in the mold; no restrictions on the quality of plastic parts; thermoplastics with suitable fluidity within a certain temperature; high-precision plastics can be injected parts, with good surface quality and dimensional stability. With injection molding, it uses a mold. However, the mold is made of metal, and when the thermoplastic part is poured into the mold body, the upper mold exerts pressure on the mold body, which is not convenient for ...

Examples

Embodiment 1

[0022] like figure 1 A mold for rapid injection molding of fan blades is shown, which includes a mold body 1 and an upper mold matched with the mold body 1, the mold body 1 is provided with a fan blade injection groove 2, and the mold A cold water flow pipe 7 is arranged in the body 1, and the cold water flow pipe 7 is located at the bottom of the fan blade injection groove 2, and a pull ring 6 is fixed on the side of the mold body 1.

[0023] The mold body 1 and the upper mold cooperate to shape the upper and lower sides of the fan blades, and cold water is introduced into the cold water flow pipe 7 to accelerate the cooling rate of the thermoplastic parts in the mold body 1 . By operating the pull ring 6, the upper and lower sides of the mold body 1 can be turned upside down, even if the cold water flow pipe is located above the fan blade injection groove 2, the cooling speed of the thermoplastic part can be accelerated by the cold water.

Embodiment 2

[0025] like figure 1 As shown, on the basis of Embodiment 1, the present embodiment is provided with a water inlet 3 and a water outlet 4 on the mold body 1, and the two ends of the cold water flow pipe 7 are connected with the water inlet 3 and the water outlet 4 respectively. connected.

[0026] The water inlet 3 and the water outlet 4 are provided with switches.

[0027] The mold body 1 is provided with an upper mold locking hole 5 .

[0028] The upper mold locking hole 5 is located around the injection groove 2 of the fan blade, and the upper mold locking hole 5 is provided with threads.

[0029] There are at least two locking holes 5 in the upper mold.

technical field

[0001] The invention relates to an injection mold, in particular to a mold for rapid injection molding of fan blades. Background technique

[0002] Fan blades have complex shapes, uneven wall thickness, high dimensional accuracy requirements, and high surface quality and dimensional stability requirements. Most of the fan blades are made of plastic, which are generally made by injection molding. And injection molding has the following advantages: almost no complexity restrictions, allowing different thermoplastic parts in the mold; no restrictions on the quality of plastic parts; thermoplastics with suitable fluidity within a certain temperature; high-precision plastics can be injected parts, with good surface quality and dimensional stability. With injection molding, it uses a mold. However, the mold is made of metal, and when the thermoplastic part is poured into the mold body, the upper mold exerts pressure on the mold body, which is not convenient for ...

Examples

Embodiment 1

[0022] like figure 1 A mold for rapid injection molding of fan blades is shown, which includes a mold body 1 and an upper mold matched with the mold body 1, the mold body 1 is provided with a fan blade injection groove 2, and the mold A cold water flow pipe 7 is arranged in the body 1, and the cold water flow pipe 7 is located at the bottom of the fan blade injection groove 2, and a pull ring 6 is fixed on the side of the mold body 1.

[0023] The mold body 1 and the upper mold cooperate to shape the upper and lower sides of the fan blades, and cold water is introduced into the cold water flow pipe 7 to accelerate the cooling rate of the thermoplastic parts in the mold body 1 . By operating the pull ring 6, the upper and lower sides of the mold body 1 can be turned upside down, even if the cold water flow pipe is located above the fan blade injection groove 2, the cooling speed of the thermoplastic part can be accelerated by the cold water.

Embodiment 2

[0025] like figure 1 As shown, on the basis of Embodiment 1, the present embodiment is provided with a water inlet 3 and a water outlet 4 on the mold body 1, and the two ends of the cold water flow pipe 7 are connected with the water inlet 3 and the water outlet 4 respectively. connected.

[0026] The water inlet 3 and the water outlet 4 are provided with switches.

[0027] The mold body 1 is provided with an upper mold locking hole 5 .

[0028] The upper mold locking hole 5 is located around the injection groove 2 of the fan blade, and the upper mold locking hole 5 is provided with threads.

[0029] There are at least two locking holes 5 in the upper mold.

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