Rapid cooling guide die for plastic pipeline pipe discharge port

Abstract

The utility model relates to a rapid cooling guide die for a plastic pipeline discharge port, which comprises a group of moving track structures connected with the outer side of a plastic pipeline extrusion molding station and a cooling guide die structure arranged between the two moving track structures, the cooling guide die structure comprises a cooling guide die body provided with one or more discharging channels, a forming die orifice connecting end arranged at one end of the cooling guide die body, a die outlet body arranged at the other end of the cooling guide die body, connecting edges arranged on the upper side and the lower side of the cooling guide die body, and an internal circulation cooling structure of the cooling guide die body. A plurality of U-shaped cooling grooves are formed in the cooling guide die body and are connected with a water seat structure in a matched manner to cool the periphery of a discharging channel in the cooling guide die body; and after being extruded, the plastic pipeline pipe is quickly subjected to surface cooling and enters a cooling water tank at a temperature matched with that of the cooling water tank, so that the phenomena of non-uniform shrinkage, patterns, poor smoothness and the like during pipe fitting cooling are solved, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cooling and shaping, in particular to a rapid cooling guide die for the discharge port of plastic pipe materials. Background Technique

[0002] Plastic pipes are developing steadily. PE pipes, PP-R pipes, and UPVC pipes all have their places. Among them, the strong development momentum of PE pipes is the most remarkable. PE pipes, PP-R pipes, and UPVC pipes are all polymerized from monomer ethylene. Due to different polymerization reaction conditions such as pressure and temperature during polymerization, resins with different densities can be obtained. Therefore, there are also high-density polyethylene, medium-density polyethylene, and low-density polyethylene. When processing different types of PE pipes, according to different application conditions and different resin grades selected, the requirements for the extruder and the die are also different. PE pipes, PP-R pipes, and UPVC pipes are widely used, and the water supply pipe and the gas pipe are two of their largest application markets. Since the extrusion molding dies for PE pipes, PP-R pipes, and UPVC pipes usually include a die head and a core die when forming, after the materials are mixed and melted in the extruder, they enter between the die head and the core die to extrude the pipes. It is easy to cause uneven shrinkage during the cooling of the pipe fittings, and problems such as patterns and poor surface finish are likely to occur, resulting in poor quality of the pipes. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rapid cooling guide die for the discharge port of plastic pipe materials, which solves the problem of quickly cooling the surface of plastic pipe materials after extrusion and matching the temperature of the cooling water tank to improve the molding quality.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a rapid cooling guide die for the discharge port of plastic pipe materials, which includes a set of moving track structures connected to the outside of the plastic pipe extrusion molding station and a cooling guide die structure arranged between the two moving track structures. The cooling guide die structure includes a cooling guide die body provided with one or more discharge channels, a forming die mouth connection end arranged at one end of the cooling guide die body, a die outlet body arranged at the other end of the cooling guide die body, connection edges arranged on the upper and lower sides of the cooling guide die body, and an internal circulation cooling structure of the cooling guide die body.

[0005] The moving track structure includes a folded guide rail body, a locking pin member arranged on the upper part of the folded guide rail body, and a limit seat body arranged at the rear end of the folded guide rail body.

[0006] The cooling guide die body includes an upper die and a bottom die. The internal circulation cooling structure includes a plurality of U-shaped cooling grooves arranged between the upper die and the bottom die and surrounding the discharge channels. The upper part of the U-shaped cooling grooves is communicated with the upper die and connected to a connecting water seat structure arranged on the upper part of the upper die.

[0007] The described water connection base structure includes a water base body, a water inlet interface and a water outlet interface arranged at the upper part of the water base body corresponding to the number of U-shaped cooling grooves.

[0008] The beneficial effects of the present utility model are as follows: Multiple U-shaped cooling grooves are arranged in the cooling guide die body and cooperate with the water connection base structure to cool the periphery of the discharge channel in the cooling guide die body; After the plastic pipe is extruded, the surface is quickly cooled to match the temperature of the cooling water tank, so as to solve the problems of uneven shrinkage, patterns and poor surface finish during the cooling of the pipe fittings, thereby improving the quality of the products.

[0009] Hereinafter, the present utility model will be described in more detail with reference to the accompanying drawings and embodiments. Description of the Drawings

[0010] Figure 1 It is a schematic structural view of the present utility model.

[0011] Figure 2 is Figure 1 the top view of

[0012] Figure 3 is Figure 1 the schematic structural view of the cooling guide die body in

[0013] Figure 4 is Figure 1 the side view of the cooling guide die body in

[0014] In the figure: 1. Connection end of the forming die mouth, 2. Die outlet body, 3. Connection edge, 4. Discharge channel, 5. Upper die, 6. Bottom die, 7. U-shaped cooling groove, 8. Water base body, 9. Water inlet interface, 10. Water outlet interface, 11. Folded guide rail body, 12. Locking pin part, 13. Limit seat body. Detailed Embodiment

[0015] In the application text, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", 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 of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0016] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] Embodiment 1, as Figures 1-4 shown, a rapid cooling guiding die for the discharge port of a plastic pipe material, comprising a set of moving track structures connected to the outside of the plastic pipe extrusion molding station and a cooling guiding die structure arranged between the two moving track structures. The cooling guiding die structure includes a cooling guiding die body provided with one or more discharge channels 4, a forming die mouth connection end 1 arranged at one end of the cooling guiding die body, a die outlet body 2 arranged at the other end of the cooling guiding die body, connection edges 3 arranged on the upper and lower sides of the cooling guiding die body, and an internal circulation cooling structure of the cooling guiding die body. The cooling guiding die body includes an upper die 5 and a bottom die 6. The internal circulation cooling structure includes a plurality of U-shaped cooling grooves 7 arranged between the upper die and the bottom die and surrounding the discharge channels. The upper part of the U-shaped cooling groove is communicated with the upper die and connected to a connecting water seat structure arranged on the upper part of the upper die.

[0018] The connecting water seat structure includes a water seat body 8, water inlet interfaces 9 and water outlet interfaces 10 arranged on the upper part of the water seat body corresponding to the number of U-shaped cooling grooves.

[0019] The moving track structure includes a folded guide rail body 11, a locking pin member 12 arranged on the upper part of the folded guide rail body, and a limit seat body 13 arranged at the rear end of the folded guide rail body.

[0020] A plurality of U-shaped cooling grooves are arranged in the cooling guiding die body and cooperate with the connecting water seat structure to cool the periphery of the discharge channels in the cooling guiding die body; the rapid surface cooling of the plastic pipe material after extrusion is matched with the temperature of the cooling water tank, so as to solve the problems of uneven shrinkage, patterns, poor surface finish, etc. during the cooling of the pipe fittings, thereby improving the quality of the product.

[0021] The above embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

[0022] The parts not involved in the present utility model are the same as the prior art or can be implemented by using the prior art.

Claims

1. A rapid cooling guide die for a plastic pipe material outlet, comprising a set of movable track structures connected to the outside of a plastic pipe extrusion molding station and a cooling guide die structure arranged between two movable track structures, wherein the cooling guide die structure comprises a cooling guide die body provided with one or more outlet channels, a molding die opening connection end arranged at one end of the cooling guide die body, an outlet die body arranged at the other end of the cooling guide die body, connecting edges arranged at the upper and lower sides of the cooling guide die body, and an internal circulation cooling structure of the cooling guide die body.

2. The rapid cooling guide die for the outlet of a plastic pipe material as claimed in claim 1, characterized in that: The movable track structure comprises a folding guide rail body, a locking pin arranged on the upper part of the folding guide rail body, and a limiting seat body arranged on the rear end of the folding guide rail body.

3. The rapid cooling guide die for the outlet of a plastic pipe material as claimed in claim 1, characterized in that: The cooling guide mold body includes an upper mold and a bottom mold. The internal circulation cooling structure includes a plurality of U-shaped cooling grooves arranged between the upper mold and the bottom mold and around the discharge channel. The upper part of the U-shaped cooling groove is connected to the upper mold and is connected to the connecting water seat structure arranged on the upper part of the upper mold.

4. The rapid cooling guide die for the outlet of a plastic pipe material as claimed in claim 3, characterized in that: The water seat connection structure comprises a water seat body, a water inlet interface and a water outlet interface which are arranged on the upper part of the water seat body and correspond to the number of U-shaped cooling grooves.

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