A cooling water tank for HDPE sheath material production

By designing cooling water tank structures that adapt to different specifications of HDPE sheathing materials, the problems of uneven cooling and equipment downtime for adjustment were solved, achieving efficient and stable cooling effect and molding quality.

CN224335003UActive Publication Date: 2026-06-09QINGDAO KEYATE NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO KEYATE NEW MATERIALS CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The cooling water tanks used in the production of existing HDPE sheathing materials cannot adapt to different product specifications, resulting in uneven cooling, deformation or scratches. Furthermore, replacing fixed components requires machine shutdown, which reduces production efficiency and increases costs.

Method used

A cooling water tank structure was designed, comprising a tank body, an annular pipe, a nozzle, a double-headed screw, and ball bearings. Stable traction is achieved by adjusting the ball bearing spacing, and all-round spray cooling is performed using the annular pipe nozzle, thus achieving uniform cooling of products of different specifications.

Benefits of technology

It achieves stable cooling and shaping of HDPE sheath materials of different specifications, avoids uneven cooling and surface scratches, improves production efficiency and molding quality, and reduces equipment maintenance costs by eliminating the need for machine downtime for adjustments.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224335003U_ABST
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Abstract

The utility model discloses a cooling tank for HDPE sheath material production, including tank body, the tank body one end and the other end all are established with the through -opening, be equipped with the annular pipe in the tank body, a plurality of shower nozzles are installed to the annular array at the annular pipe, the tank body place rotation is linked with the double -end screw rod, the double -end screw rod one end and the other end all screw threads are linked with the cylinder, two the cylinder place all are established with a plurality of cavities. The utility model discloses adopt double -end screw rod drive two cylinder synchronous movement, can adjust the two -row ball spacing flexibly. Through real -time adjustment, can closely fit different specifications HDPE sheath material, avoid small -size product swing deviation when cooling, big -size product is pressed and is scratched, guarantee the forming quality. Meanwhile, only need to control screw rotation direction and the number of laps, can complete spacing adaptation under the non -stop state, need not to dismount and replace parts, significantly improve production efficiency, reduce manpower and time cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of HDPE sheathing materials, and in particular to a cooling water tank for the production of HDPE sheathing materials. Background Technology

[0002] In HDPE sheath extrusion molding, the cooling water tank directly affects product quality, as the freshly extruded, high-temperature HDPE sheath needs to be rapidly cooled and shaped within it. Currently, most cooling water tanks use fixed-size roller sets or limiting brackets as the traction structure. However, HDPE sheath materials come in various specifications, such as 10-50mm diameter and 1-3mm wall thickness for communication cables, and 110-1200mm diameter and 10-110mm wall thickness for gas pipelines. Fixed traction structures cannot adapt to different specifications: when processing small-diameter, thin-walled products, it easily leads to swaying and uneven cooling, resulting in deformation and wrinkles; when processing large-diameter, thick-walled products, it can cause surface scratches due to compression. Moreover, replacing the fixed components requires machine shutdown and disassembly, which is time-consuming, labor-intensive, reduces production efficiency, and increases costs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cooling water tank for the production of HDPE sheathing materials.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A cooling water tank for HDPE sheath material production includes a tank body with openings at one and the other ends. An annular pipe is provided inside the tank body, and multiple nozzles are installed in an annular array at the annular pipe. A double-ended screw is rotatably connected to the tank body, and a column is threaded to one and the other ends of the double-ended screw. Multiple cavities are provided at each of the two columns, and ball bearings are movably placed in each of the multiple cavities. The multiple cavities are adapted to the ball bearings.

[0006] Preferably, a pump body is installed in the tank, and one end of the pump body is connected to a pipe body, which is connected to the annular pipe.

[0007] Preferably, a frame is connected to the trough, and the frame is connected to the annular pipe.

[0008] Preferably, a valve body is connected to the groove.

[0009] Preferably, a handle is connected to one end and the other end of the double-ended screw.

[0010] Preferably, a sliding rod is connected to the groove, and the sliding rod is slidably connected to the two columns.

[0011] Preferably, the two columns are spaced apart from the annular tube at the ends closest to it.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. By coordinating the groove, opening, double-ended screw, column, cavity, and balls, the double-ended screw drives two columns to move outwards or closer together synchronously, thus adjusting the distance between the two columns. This, in turn, adjusts the distance between the two rows of balls, achieving a stable, tight fit through real-time adjustment of the ball spacing. This avoids the problem of small-sized sheaths swaying or shifting during cooling due to excessively wide spacing, resulting in uneven cooling and surface wrinkles. It also eliminates the defects such as surface scratches and structural deformation caused by compression of large-sized products due to narrow spacing, fundamentally ensuring the molding quality of products of different specifications. Furthermore, by simply controlling the rotation direction and number of turns of the double-ended screw, the traction spacing can be adapted without stopping the machine, saving time and effort.

[0014] 2. Through the coordination between the pump body, pipe body, annular pipe and nozzles, when the HDPE sheath is cooled, it can pass through the annular pipe and use multiple nozzles at the annular pipe to carry out a relatively comprehensive spray cooling operation. This allows the cooling water to contact the sheath surface more evenly, effectively avoiding deformation problems caused by local temperature differences, significantly improving cooling efficiency and uniformity, and ensuring that the HDPE sheath can be cooled and shaped quickly and stably, providing a strong guarantee for subsequent processing and finished product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a cooling water tank for HDPE sheath material production proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the central inlet, the annular pipe, and the nozzle;

[0017] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the central tank, inlet, and nozzle;

[0019] Figure 5 for Figure 1 A schematic diagram of the structure of the central groove, the through port, and the double-ended screw.

[0020] In the diagram: 1. Tank; 2. Inlet; 3. Ring pipe; 4. Nozzle; 5. Double-ended screw; 6. Column; 7. Cavity; 8. Ball bearing; 9. Pipe; 10. Pump body; 11. Handle; 12. Slide rod; 13. Valve body; 14. Frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figures 1 to 5 A cooling water tank for HDPE sheath material production includes a tank body 1. Both ends of the tank body 1 have openings 2. The opening 2 at one end is the inlet for the HDPE sheath material to enter the tank body 1, allowing the high-temperature HDPE sheath material freshly extruded from the extruder to enter. The opening 2 at the other end is the outlet for the cooled sheath material, facilitating subsequent processing operations. An annular pipe 3 is installed inside the tank body 1, and multiple nozzles 4 are arranged in a circular array on the annular pipe 3. This allows for all-around spraying of the HDPE sheath material passing through the central area of ​​the annular pipe 3, ensuring that the cooling water covers the entire surface of the HDPE sheath material. To avoid cooling dead zones and effectively improve cooling uniformity and efficiency, a double-ended screw 5 is rotatably connected to the tank body 1. One end of the double-ended screw 5 is threaded to a column 6, allowing the screw 5 to rotate and drive the two columns 6 to move synchronously to the sides or closer together. Multiple cavities 7 are formed in each column 6, and ball bearings 8 are movably placed within each cavity 7. The cavities 7 and ball bearings 8 are compatible, allowing the ball bearings 8 to roll flexibly within the cavities 7. When the position of the columns 6 changes, the ball bearings 8 can adjust accordingly, providing stable support and traction for the HDPE sheath material. The ball bearings 8 are made of wear-resistant, high-strength ceramic material, which not only reduces friction with the HDPE sheath material, preventing scratches on the sheath surface, but also has a long service life, reducing equipment maintenance costs.

[0023] In this embodiment, a pump body 10 is installed inside the tank 1. The model of the pump body 10 is selected according to actual working requirements. After the pump body 10 is started, it can draw water from the bottom of the tank 1 and transport it to the annular pipe 3 through the pipe body 9, and then spray it out from the nozzle 4 on the annular pipe 3. One end of the pump body 10 is connected to the pipe body 9, and the pipe body 9 is connected to the annular pipe 3. A frame body 14 is connected to the tank 1 and is connected to the annular pipe 3. The frame body 14 plays a role in stabilizing the annular pipe 3 and keeping it in a stable position during operation. A valve body is connected to the tank 1. 13. Both ends of the double-ended screw 5 are connected to handles 11, and a slide rod 12 is connected to the groove 1. The slide rod 12 provides a stable guide for the movement of the column 6, ensuring that the column 6 can move smoothly to both sides or closer to each other under the drive of the double-ended screw 5, avoiding deviation or jamming. The slide rod 12 is slidably connected to the two columns 6. The ends of the two columns 6 near the annular pipe 3 are kept at a distance from the annular pipe 3, so that when the HDPE sheath enters the spraying area of ​​multiple nozzles 4, the column 6 can be avoided from blocking the spray, ensuring comprehensive spraying.

[0024] The working principle of this embodiment is as follows: When in use, water is poured into the tank 1. After pouring, the pump 10 is connected to an external power source and started. The pump 10 will continuously spray the water in the tank 1 out at the nozzle 4 of the annular pipe 3 and let it fall back into the tank 1 for recycling. After running, the handle 11 drives the double-headed screw 5 to rotate, thereby adjusting the distance between the two columns 6 and the distance between the two rows of ball bearings 8. In this way, the two rows of ball bearings 8 can assist in the traction operation of HDPE sheaths of different diameters according to actual needs. After the adjustment is completed, the HDPE sheath can be moved to the annular pipe 3 by the traction of the two rows of ball bearings 8, and then sprayed in multiple directions by multiple nozzles 4 for comprehensive cooling.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling water tank for the production of HDPE sheathing material, comprising a tank body (1), characterized in that, The groove (1) has an opening (2) at one end and the other end. The groove (1) has an annular tube (3) inside. Multiple nozzles (4) are installed in an annular array at the annular tube (3). The groove (1) is rotatably connected to a double-headed screw (5). One end of the double-headed screw (5) is threadedly connected to a column (6). Multiple cavities (7) are opened at each of the two columns (6). Ball bearings (8) are movably placed in each of the multiple cavities (7). The multiple cavities (7) are adapted to the ball bearings (8).

2. A cooling water tank for HDPE sheath material production according to claim 1, characterized in that, A pump body (10) is installed inside the tank (1), and one end of the pump body (10) is connected to a pipe (9), which is connected to the annular pipe (3).

3. A cooling water tank for HDPE sheath material production according to claim 1, characterized in that, A frame (14) is connected to the trough (1), and the frame (14) is connected to the annular pipe (3).

4. A cooling water tank for HDPE sheath material production according to claim 1, characterized in that, A valve body (13) is connected to the tank (1).

5. A cooling water tank for HDPE sheath material production according to claim 1, characterized in that, The double-ended screw (5) has a handle (11) connected to one end and the other end.

6. A cooling water tank for HDPE sheath material production according to claim 1, characterized in that, A slide rod (12) is connected to the groove (1), and the slide rod (12) is slidably connected to the two columns (6).

7. A cooling water tank for HDPE sheath material production according to claim 1, characterized in that, The two columns (6) are spaced apart from the annular tube (3) at one end.