Integrated sand filter barrel blowing mold

By designing an integrated blow molding mold for the sand filter barrel, the problems of high processing costs and low efficiency of traditional sand filter barrels are solved, achieving direct one-piece molding and uniform cooling, reducing costs and improving efficiency.

CN224210518UActive Publication Date: 2026-05-08NANTONG BAISHILE TECH DEV CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG BAISHILE TECH DEV CO LTD
Filing Date
2025-05-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional sand filter barrels are expensive and inefficient to process, requiring drilling equipment to create openings, which further increases costs.

Method used

The sand filter barrel is made of one-piece blow molding mold, including a fixed mold and a moving mold. The bottom shaping column and cooling channel are driven by cylinders and oil cylinders to achieve direct one-piece molding and uniform cooling of the sand filter barrel.

Benefits of technology

This technology enables the direct one-piece molding of the sand filter barrel, reducing processing costs, improving efficiency, and ensuring product quality and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224210518U_ABST
    Figure CN224210518U_ABST
Patent Text Reader

Abstract

The utility model discloses an integrated sand filter barrel blowing mold which comprises a fixed mold and a movable mold, the movable mold is matched with the fixed mold, and first semicircular through grooves are formed in the bottom, located in a first mold cavity, of the fixed mold and the bottom, located in a second mold cavity, of the movable mold. Second semicircular through grooves are formed in the side face, located in the first mold cavity, of the fixed mold and the side face, located in the second mold cavity, of the movable mold correspondingly, air cylinders are arranged on the outer side surface of the movable mold and located at the second semicircular through grooves, and piston rods of the air cylinders are movably arranged in channels formed by the second semicircular through grooves of the fixed mold and the second semicircular through grooves of the movable mold. Oil cylinders are arranged on the two sides of the fixed mold, piston rods of the oil cylinders are connected with a lifting plate, a bottom shaping column is arranged in the middle of the lifting plate, and the bottom shaping column is movably arranged in a channel formed by a first semicircular through groove of the fixed mold and a first semicircular through groove of the movable mold. The water outlet can be directly obtained, the efficiency is greatly improved, and the processing cost is greatly reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of sand filter barrel mold technology, specifically an integrated sand filter barrel blow molding mold. Background Technology

[0002] Swimming pools typically use sand filters for water treatment. Sand filters are circulating filtration devices that remove suspended particles, colloids, grease, and microorganisms from the water through physical interception. As a core component of the pool water treatment system, the sand filter uses a water pump to drive water flow through a quartz sand bed. Impurities are trapped between the sand particles, while clean water is returned to the pool, thus achieving continuous water purification.

[0003] In the traditional sand filter barrel manufacturing process, the upper and lower halves of the sand filter barrel are usually made by two sets of injection molds, and then spliced ​​together by gluing or high temperature. This method is costly and inefficient. Traditional blow molding requires drilling equipment to open holes, which also increases costs. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated sand filter barrel blow molding mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated sand filter barrel blow molding mold, comprising a fixed mold and a moving mold. A first mold cavity is formed on one side of the fixed mold, and a second mold cavity is formed on one side of the moving mold. The moving mold and the fixed mold cooperate with each other, and the second mold cavity cooperates with the first mold cavity. A first semi-circular through groove is formed on the bottom of both the fixed mold and the moving mold at the bottom of the second mold cavity. A second semi-circular through groove is formed on the side of both the fixed mold and the moving mold at the side of the second mold cavity. A cylinder is mounted on the outer surface of the moving mold at the location of the second semi-circular through groove via a mounting plate. The piston rod of the cylinder is movably disposed within the second semi-circular through groove of the fixed mold. In the channel formed by the first semi-circular through-slot of the fixed mold and the second semi-circular through-slot of the moving mold, hydraulic cylinders are symmetrically arranged on both sides of the fixed mold. The piston rods of the hydraulic cylinders face downward and are connected to the lifting plate. A bottom shaping column is arranged in the middle of the upper surface of the lifting plate. The bottom shaping column is movably arranged in the channel formed by the first semi-circular through-slot of the fixed mold and the first semi-circular through-slot of the moving mold. Cooling channels are opened on the lower surfaces of both the fixed mold and the moving mold. Bottom cover plates are installed at the bottom of both the fixed mold and the moving mold. The cooling channels are composed of several interconnected arc-shaped channels. The arc-shaped channels located on the lower surface of the fixed mold are equidistant from the bottom of the first mold cavity, and the arc-shaped channels located on the lower surface of the moving mold are equidistant from the bottom of the second mold cavity.

[0006] Preferably, the present invention provides an integrated sand filter barrel blow molding mold, wherein a fixing plate is provided on the side of the fixed mold away from the first mold cavity.

[0007] Preferably, the present invention provides an integrated sand filter barrel blow molding mold, wherein the fixed mold located at the top of the first mold cavity and the moving mold located at the top of the second mold cavity are both provided with barrel opening molds, and an upper pressure cap is pressed and installed on the upper surface of the fixed mold and the moving mold and on the upper surface of the barrel opening mold.

[0008] Preferably, the present invention provides an integrated sand filter barrel blow molding mold, wherein each of the bottom cover plates is provided with inlet and outlet liquid channels, and the inlet and outlet liquid channels are respectively connected to the corresponding cooling channels.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] (1) The sand filter barrel can be directly molded as a whole, which solves the problem of the traditional process of first injection molding the upper and lower parts and then splicing them together. In addition, the drain outlet can be obtained directly, which greatly improves efficiency and greatly reduces processing costs.

[0011] (2) Oil cylinders are provided on both sides of the fixed mold. The lifting plate is connected to the piston rod of the oil cylinder at both ends. A bottom shaping column is provided in the middle of the upper surface of the lifting plate. The bottom shaping column ensures that a groove is left at the bottom during the sand filter barrel forming process. When the moving mold leaves the fixed mold, the sand filter barrel will not fall off immediately, avoiding the problem of the sand filter barrel falling off due to the failure of the personnel to arrive in time.

[0012] (3) Cooling channels are provided at the bottom of the fixed mold and the moving mold and pressed by the bottom cover plate. The distance from each arc-shaped channel of the cooling channel at the bottom of the fixed mold to the bottom of the first mold cavity is consistent, and the distance from each arc-shaped channel of the cooling channel at the bottom of the moving mold to the bottom of the second mold cavity is consistent, thereby ensuring that the bottom of the sand filter barrel can be cooled evenly, thus ensuring the quality of the sand filter barrel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a front view structural diagram of the present invention;

[0016] Figure 4 For the appendix Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0017] Figure 5 For the appendix Figure 4 A schematic diagram of the right-side view structure;

[0018] Figure 6 This is a side view of the structure of this utility model;

[0019] Figure 7 For the appendix Figure 6 Schematic diagram of the cross-sectional structure at point BB;

[0020] Figure 8 This is a schematic diagram of the structure of this utility model from below (the bottom cover and lifting plate are not shown).

[0021] In the diagram: 1. Fixed mold; 2. Moving mold; 3. First mold cavity; 4. Second mold cavity; 5. First semi-circular through groove; 6. Second semi-circular through groove; 7. Mounting plate; 8. Cylinder; 9. Oil cylinder; 10. Lifting plate; 11. Bottom shaping column; 12. Cooling channel; 13. Bottom cover plate; 14. Fixing plate; 15. Barrel mouth mold; 16. Upper pressure cover; 17. Inlet and outlet liquid channels. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Please see Figure 1-8This utility model provides a technical solution: an integrated sand filter barrel blow molding mold, including a fixed mold 1 and a movable mold 2. A first mold cavity 3 is formed on one side of the fixed mold 1, and a fixing plate 14 is provided on the side of the fixed mold 1 away from the first mold cavity 3 to connect and install it with the blow molding machine frame, thereby achieving the installation and fixation of the fixed mold 1. A second mold cavity 4 is formed on one side of the movable mold 2. The movable mold 2 cooperates with the fixed mold 1, and the second mold cavity 4 cooperates with the first mold cavity 3. The fixed mold 1 is located at the top of the first mold cavity 3, and the movable mold 2 is located in the second mold cavity 4. The top of each mold has a barrel opening mold 15. An upper pressure cap 16 is pressed and installed on the upper surface of the fixed mold 1 and the moving mold 2, located on the upper surface of the barrel opening mold 15. The barrel opening mold 15 is used to shape and form the opening of the sand filter barrel. The fixed mold 1, located at the bottom of the first mold cavity 3, and the moving mold 2, located at the bottom of the second mold cavity 4, both have a first semi-circular through groove 5. The fixed mold 1, located on the side of the first mold cavity 3, and the moving mold 2, located on the side of the second mold cavity 4, both have a second semi-circular through groove 6. The outer surface of the moving mold 2, located at the second semi-circular through groove 6, has a through groove. A cylinder 8 is installed on the mounting plate 7. The piston rod of the cylinder 8 is movably disposed in the channel formed by the second semi-circular through groove 6 of the fixed mold 1 and the second semi-circular through groove 6 of the moving mold 2. Hydraulic cylinders 9 are symmetrically arranged on both sides of the fixed mold 1. The piston rods of the hydraulic cylinders 9 face downward and are connected to the lifting plate 10. A bottom shaping post 11 is provided at the middle position of the upper surface of the lifting plate 10. The bottom shaping post 11 is movably disposed in the channel formed by the first semi-circular through groove 5 of the fixed mold 1 and the first semi-circular through groove 5 of the moving mold 2. The lower surfaces of both the fixed mold 1 and the moving mold 2 are open. A cooling channel 12 is provided. Both the fixed mold 1 and the moving mold 2 are equipped with bottom cover plates 13. The cooling channel 12 is composed of several interconnected arc-shaped channels. The arc-shaped channels located on the lower surface of the fixed mold 1 are at the same distance from the bottom of the first mold cavity 3, and the arc-shaped channels located on the lower surface of the moving mold 2 are at the same distance from the bottom of the second mold cavity 4. The bottom cover plates 13 are provided with inlet and outlet channels 17. The inlet and outlet channels 17 are interconnected with the corresponding cooling channels 12. The coolant enters or leaves the cooling channel 12 through the inlet and outlet channels 17.

[0025] Working method and principle: First, the moving mold 2 is moved away from the fixed mold 1, and the piston rod of the hydraulic cylinder 9 is pushed outward, so that the bottom shaping column 11 is located in the second semi-circular through groove 6 of the fixed mold 1, and the top of the bottom shaping column 11 slightly extends into the first mold cavity 3 and the second mold cavity 4. The piston rod of the cylinder 8 is located in the first semi-circular through groove 5 of the fixed mold 2, and the piston rod of the cylinder 8 does not enter the first mold cavity 3 and the second mold cavity 4 and leaves a certain distance. The material is extruded by the extruder, and then the moving mold 2 is moved. The moving mold 2 is driven by the external pushing device to close the moving mold 2 with the fixed mold 1. Air is blown into the material through the air outlet of the blow molding machine, so that the material is close to the inner wall of the first mold cavity 3 and the second mold cavity 4. The material enters the second semi-circular through groove 6 of the fixed mold 1 and the moving mold 2 and abuts against the piston rod of the cylinder 8. The bottom of the material cooperates with the bottom shaping column 11. At this time, cooling water is sent into the cooling channel 12, the material is formed, and an integrated sand filter barrel is obtained. Subsequently, the moving mold 2 leaves the fixed mold 1. Since the bottom shaping post 11 is inserted into the bottom of the sand filter barrel, the sand filter barrel remains inside the fixed mold 1. The sand filter barrel protrudes outward at the piston rod of the cylinder 8. After cutting this protrusion, the sand filter barrel obtains a drain outlet. Then, the lifting plate 10 is lowered by the hydraulic cylinder 9, causing the bottom shaping post 11 to disengage from the groove of the sand filter barrel, thus completing the demolding. Furthermore, a label protrusion can be set on the end face of the bottom shaping post 11, thereby directly forming a label in the groove at the bottom of the sand filter barrel. This utility model has a reasonable structure, allowing the sand filter barrel to be directly integrally molded, solving the problem of traditional processes where the upper and lower parts are first injection molded and then spliced ​​together. It also allows for direct access to the drain outlet, significantly improving efficiency and reducing processing costs. Simultaneously, hydraulic cylinders 9 are installed on both sides of the fixed mold 1, and the lifting plate 10 is connected to the piston rods of the hydraulic cylinders 9 at both ends. A bottom shaping column 11 is installed in the middle of the upper surface of the lifting plate 10, creating a groove at the bottom during the sand filter barrel molding process. Furthermore, in the moving mold 2… When leaving the fixed mold 1, the sand filter barrel will not fall off immediately, avoiding the problem of the sand filter barrel falling off due to the lack of timely human intervention; the bottom of the fixed mold 1 and the moving mold 2 are provided with cooling channels 12 and pressed by the bottom cover plate 13. The distance from each arc-shaped channel of the cooling channel 12 at the bottom of the fixed mold 1 to the bottom of the first mold cavity 3 is consistent, and the distance from each arc-shaped channel of the cooling channel 12 at the bottom of the moving mold 2 to the bottom of the second mold cavity 4 is consistent, thereby ensuring that the bottom of the sand filter barrel can be cooled evenly, thus ensuring the quality of the sand filter barrel.

[0026] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A blow molding mold for an integrated sand filter barrel, characterized in that: The system includes a fixed mold (1) and a moving mold (2). The fixed mold (1) has a first mold cavity (3) on one side, and the moving mold (2) has a second mold cavity (4) on one side. The moving mold (2) and the fixed mold (1) cooperate with each other, and the second mold cavity (4) and the first mold cavity (3) cooperate with each other. The fixed mold (1) at the bottom of the first mold cavity (3) and the moving mold (2) at the bottom of the second mold cavity (4) both have a first semi-circular through groove (5). The fixed mold (1) at the side of the first mold cavity (3) and the moving mold (2) at the side of the second mold cavity (4) both have a second semi-circular through groove (6). A cylinder (8) is mounted on the outer surface of the moving mold (2) at the second semi-circular through groove (6) via a mounting plate (7). The piston rod of the cylinder (8) is movably positioned within the second semi-circular through groove (6) of the fixed mold (1) and the second semi-circular through groove (6) of the moving mold (2). 6) In the channel formed, the fixed mold (1) is symmetrically provided with oil cylinders (9) on both sides. The piston rod of the oil cylinder (9) faces downward and is connected to the lifting plate (10). The middle position of the upper surface of the lifting plate (10) is provided with a bottom shaping column (11). The bottom shaping column (11) is movably provided in the channel formed by the first semi-circular through groove (5) of the fixed mold (1) and the first semi-circular through groove (5) of the moving mold (2). The lower surfaces of the fixed mold (1) and the moving mold (2) are provided with cooling channels (12). The bottom of the fixed mold (1) and the moving mold (2) are provided with bottom cover plates (13). The cooling channels (12) are composed of several interconnected arc channels. The distance from the arc channel on the lower surface of the fixed mold (1) to the bottom of the first mold cavity (3) is the same. The distance from the arc channel on the lower surface of the moving mold (2) to the bottom of the second mold cavity (4) is the same.

2. The blow molding mold for an integrated sand filter barrel according to claim 1, characterized in that: A fixing plate (14) is provided on the side of the fixed mold (1) away from the first mold cavity (3).

3. The blow molding mold for an integrated sand filter barrel according to claim 1, characterized in that: The fixed mold (1) is located at the top of the first mold cavity (3), and the moving mold (2) is located at the top of the second mold cavity (4). Both of them have a barrel opening mold (15). An upper pressure cover (16) is pressed and installed on the upper surface of the fixed mold (1) and the moving mold (2) and on the upper surface of the barrel opening mold (15).

4. The blow molding mold for an integrated sand filter barrel according to claim 1, characterized in that: Each of the bottom cover plates (13) is provided with inlet and outlet liquid channels (17), and the inlet and outlet liquid channels (17) are respectively connected to the corresponding cooling channels (12).