Water circulation filtering device of corrugated pipe water pressure forming machine

Abstract

The utility model relates to the field of industrial fluid purification, concretely relates to a corrugated pipe water pressure forming machine water circulation filter device, including mounting bracket, the top of mounting bracket is equipped with frame, the inner wall of frame is embedded with filter material, the inside of mounting bracket is provided with the connecting mechanism for with frame detachably fixed on the mounting bracket, the connecting mechanism includes elastic sheet and turning plate, the bottom of frame is fixedly connected with elastic sheet, the outside surface of elastic sheet is fixedly connected with semicylindrical chuck, the inner wall of mounting bracket corresponds position and is equipped with the clamping groove, semicylindrical chuck is adapted to card into the clamping groove, the inner wall of turning plate is rotatably connected on mounting bracket through pivot. Through the cooperation of elastic sheet, semicylindrical chuck and turning plate, the locking and release of filter core can be easily completed by rotating handle without tool auxiliary, simplify the filter core replacement process, reduce the downtime, reduce the influence of maintenance to production.

Description

Technical Field

[0001] This utility model relates to the field of industrial fluid purification, specifically to a water circulation filtration device for a corrugated pipe hydraulic forming machine. Background Technology

[0002] In the corrugated pipe hydraulic forming process, high-pressure water serves as the core force transmission medium. It needs to apply uniform pressure to the pipe through the forming mold, causing the pipe to plastically deform into the preset corrugated pipe structure in the mold cavity. To reduce water consumption and production costs, the industry generally adopts a water circulation system, which recycles and treats the water discharged after forming and then sends it back to the forming machine, realizing the recycling and reuse of water resources. However, the mold will generate metal wear particles (such as mold steel chips and alloy fragments) during long-term high-pressure contact. Local fractures or trimming during pipe forming will introduce plastic fragments. At the same time, in order to reduce friction between the mold and the pipe, the lubricant used in the forming process will form oily contaminants. If these impurities enter the circulation system with the water flow and are not removed in time, they will gradually deposit on the inner wall of the pipe, resulting in a reduction in the inner diameter of the pipe and an increase in water flow resistance, which in turn affects the stability of water pressure.

[0003] While existing water circulation filtration devices can achieve basic filtration, they still have some drawbacks: most devices use a fixed filter element structure, and the connection between the filter media mounting frame and the mounting bracket relies on multiple sets of bolts. When replacing the filter media, tools such as wrenches are needed to remove the bolts, making the operation process cumbersome. If multiple molding machines are running simultaneously on the production line, maintenance time will increase significantly, reducing maintenance efficiency. At the same time, existing sealing structures mostly use rubber gaskets as sealing structures, which are prone to local deformation or displacement under the impact of high-pressure water flow, resulting in gaps in the sealing surface and causing water leakage, affecting the pressure stability of the water circulation system.

[0004] Therefore, it is necessary to invent a water circulation filtration device for a corrugated pipe hydraulic forming machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a water circulation filtration device for a corrugated pipe hydraulic forming machine. Through the cooperation of the spring sheet, the semi-cylindrical clamp and the rotating plate, it can solve the problem of long maintenance downtime affecting production in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water circulation filtration device for a corrugated pipe hydraulic forming machine, including a mounting frame, a frame on the top of the mounting frame, filter media embedded in the inner wall of the frame, and a connecting mechanism inside the mounting frame for detachably fixing the frame to the mounting frame. The connecting mechanism includes a spring and a rotating plate. The spring is fixedly connected to the bottom of the frame. A semi-cylindrical clip is fixedly connected to the outer surface of the spring. A corresponding slot is provided on the inner wall of the mounting bracket. The semi-cylindrical clip is adapted to fit into the slot. The rotating plate is rotatably connected to the inner wall of the mounting bracket via a rotating shaft. Multiple protrusions are evenly distributed on the circumferential surface of the rotating plate. A handle exposed on the mounting bracket is fixedly connected to the rotating plate via a rotating shaft. A round rod is slidably connected to the inner wall of the rotating plate. The round rod is elastically connected to the inner wall of the rotating plate via a spring. A round groove is provided on the inner wall of the mounting bracket at a corresponding position. An arc-shaped protrusion is provided at the end of the round rod away from the spring. The arc-shaped protrusion engages with the round groove. A clamping mechanism is also provided at the bottom of the frame.

[0007] Preferably, the circumferential outer wall of the mounting frame is fixedly connected with a plurality of evenly distributed mounting ears, and each mounting ear is provided with a mounting hole.

[0008] Preferably, the clamping mechanism includes a sealing gasket, which is fixedly connected to the bottom of the frame.

[0009] Preferably, the surface of the sealing gasket is provided with a positioning groove, and the inner wall of the mounting bracket is provided with a positioning block that matches the positioning groove, the width of the positioning block being equal to the width of the positioning groove.

[0010] Preferably, the clamping mechanism further includes a fixing plate, which is fixedly connected to the inner wall of the mounting frame. An arc-shaped plate is adapted to be installed on the top of the fixing plate, and the top of the arc-shaped plate abuts against the bottom of the sealing gasket.

[0011] Preferably, the arc-shaped plate is made of an elastic metal material and has an arc-shaped structure when not subjected to external force.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention utilizes a combination of a spring, a semi-cylindrical locking head, and a rotating plate. By rotating the handle, the filter element can be easily locked and released without the need for tools. This simplifies the filter element replacement process, reduces downtime, and minimizes the impact of maintenance on production. Combined with an elastic arc plate that applies continuous pressure to the sealing gasket, it maintains a good sealing effect even under high pressure conditions, avoiding the leakage problem of traditional rubber gaskets. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a three-dimensional structural breakdown diagram of the overall device in this utility model; Figure 3 This is a three-dimensional cross-sectional view of the connecting mechanism and the pressing mechanism in this utility model; Figure 4 This is a three-dimensional structural diagram of the mounting bracket, spring clip, and semi-cylindrical clip in this utility model; Figure 5 This is a three-dimensional cross-sectional view of the connecting mechanism in this utility model.

[0015] Legend: 10. Mounting bracket; 11. Frame; 12. Filter media; 13. Mounting ear; 14. Mounting hole; 20. Connecting mechanism; 21. Spring; 22. Semi-cylindrical clip; 23. Slot; 24. Rotating plate; 25. Protrusion; 26. Rotating shaft; 27. Handle; 281. Round rod; 282. Spring; 283. Round groove; 30. Pressing mechanism; 31. Sealing gasket; 32. Positioning groove; 33. Positioning block; 34. Fixing plate; 35. Arc plate. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1 - Figure 3 The corrugated pipe hydraulic molding machine water circulation filtration device shown includes a mounting frame 10. A plurality of evenly distributed mounting ears 13 are fixedly connected to the circumferential outer wall of the mounting frame 10. Each mounting ear 13 is provided with a mounting hole 14 for fixing the entire device to the water circulation pipeline of the corrugated pipe hydraulic molding machine by bolts. The top of the mounting frame 10 is provided with a frame 11. The inner wall of the frame 11 is embedded with filter media 12. The filter media 12 is a multi-layer composite filter medium, including a polypropylene melt-blown layer, an activated carbon adsorption layer and a nylon mesh support layer, which is suitable for filtering oil, metal particles and plastic debris generated during the hydraulic molding process. The mounting frame 10 is provided with a connecting mechanism 20 for detachably fixing the frame 11 to the mounting frame 10. like Figure 3 - Figure 5As shown, the connecting mechanism 20 includes a spring piece 21 and a rotating plate 24. The spring piece 21 is fixedly connected to the bottom of the frame 11 and is a naturally extended strip when not subjected to external force. Its length extends radially along the frame 11 to ensure sufficient lateral displacement for locking and releasing when compressed. The spring piece 21 is made of stainless steel with high elasticity and fatigue resistance. A semi-cylindrical locking head 22 is fixedly connected to the outer surface of the spring piece 21. A corresponding slot 23 is provided on the inner wall of the mounting bracket 10. The semi-cylindrical locking head 22 is fitted into the slot 23 to achieve axial limiting. The rotating plate 24 is rotatably connected to the inner wall of the mounting bracket 10 via a rotating shaft 26. Multiple protrusions 25 are evenly distributed on the circumferential surface of the rotating plate 24. When the rotating plate 24 rotates to a preset position, the protrusions 25 press the spring piece 21, causing it to deform and press against the inner wall of the mounting bracket 10, thereby allowing the semi-cylindrical locking head 21 to lock and release. The cylindrical locking head 22 is stably locked into the locking groove 23 to prevent the frame 11 from falling off. The rotating plate 24 is fixedly connected to the handle 27 exposed on the mounting bracket 10 via the rotating shaft 26 for manual operation of the rotation of the rotating plate 24. The handle 27 is provided with anti-slip texture or indicator marks to indicate the two operation positions of locking and unlocking, so that the operator can quickly identify the current status. The inner wall of the rotating plate 24 is slidably connected to the round rod 281. The round rod 281 is elastically connected to the inner wall of the rotating plate 24 via the spring 282. The inner wall of the mounting bracket 10 is provided with a round groove 283 at the corresponding position. The end of the round rod 281 away from the spring 282 is provided with an arc-shaped protrusion. The arc-shaped protrusion and the round groove 283 are engaged to limit the rotation angle of the rotating plate 24 and achieve positioning and locking. The bottom of the frame 11 is also provided with a pressing mechanism 30 to enhance the sealing and connection stability between the frame 11 and the mounting bracket 10.

[0018] like Figure 2 - Figure 4 As shown, the clamping mechanism 30 includes a sealing gasket 31, which is fixedly connected to the bottom of the frame 11. It is used to form a seal with the contact surface of the mounting bracket 10 after the frame 11 is installed in place, so as to prevent high-pressure water leakage. The surface of the sealing gasket 31 is provided with a positioning groove 32. The inner wall of the mounting bracket 10 is provided with a positioning block 33 that matches the positioning groove 32. The width of the positioning block 33 is equal to the width of the positioning groove 32, which is used to achieve quick centering and axial positioning during assembly.

[0019] like Figure 2 - Figure 4 As shown, the clamping mechanism 30 also includes a fixing plate 34, which is fixedly connected to the inner wall of the mounting frame 10. An arc-shaped plate 35 is fitted on the top of the fixing plate 34. The top of the arc-shaped plate 35 abuts against the bottom of the sealing gasket 31. The arc-shaped plate 35 is made of an elastic metal material and has an arc-shaped structure when not subjected to external force. When the frame 11 is pressed down, the arc-shaped plate 35 undergoes elastic deformation, generating an upward restoring force, thereby applying a continuous clamping force to the sealing gasket 31 and improving the sealing reliability.

[0020] The working principle of this utility model is as follows: When the filter element needs to be replaced or installed, the operator first rotates the handle 27 to the unlocked position. At this time, the rotating plate 24 rotates counterclockwise around the rotating shaft 26, and its circumferential protrusions 25 gradually disengage from the contact with the spring 21, releasing the pressure on the spring 21. Under the action of the elastic restoring force of the spring 21 itself, it returns from the compressed state to a naturally extended strip shape, driving the outer semi-cylindrical locking head 22 to disengage from the locking groove 23 on the inner wall of the mounting bracket 10, releasing the axial limit. At the same time, the round rod 281 on the inner wall of the rotating plate 24 springs into the round groove 283 on the mounting bracket 10 under the action of the spring 282, realizing the positioning and locking of the unlocked state, preventing the handle 27 from rotating accidentally.

[0021] Subsequently, the frame 11 can be removed vertically upwards, along with the filter media 12 inside it, for replacement or cleaning. The bottom of the new filter element frame 11 is equipped with a sealing gasket 31. After the positioning groove 32 on its surface is aligned with the positioning block 33 on the inner wall of the mounting bracket 10, the frame 11 is vertically placed into the mounting bracket 10. The matching design of the positioning block 33 and the positioning groove 32 ensures quick alignment during the assembly process, avoids eccentric installation, and improves assembly efficiency and sealing uniformity.

[0022] Once the frame 11 is fully pressed into place, the operator holds the handle 27 and rotates it to the locking position. The rotating plate 24 rotates accordingly, and its circumferential protrusions 25 gradually press against the root of the spring piece 21, forcing the spring piece 21 to produce inward elastic deformation. This allows the semi-cylindrical locking head 22 to align and slide into the slot 23, achieving axial fixation. When the rotating plate 24 rotates to the preset angle, the round rod 281 automatically springs into the round groove 283 on the other side under the action of the spring 282, making a clicking sound and completing the angle limit, achieving mechanical positioning in the locking state, ensuring a stable connection, and preventing loosening due to vibration or water pressure impact.

[0023] During the locking process, the frame 11 simultaneously presses the bottom sealing gasket 31, making it fit tightly against the contact surface of the mounting bracket 10 to form a static seal. At the same time, the arc-shaped plate 35 below the sealing gasket 31 is compressed and undergoes elastic deformation, storing potential energy. The arc-shaped plate 35 is made of elastic metal material, and after deformation, it continuously applies an upward elastic force, keeping the sealing gasket 31 under pressure at all times. This compensates for the small gaps caused by temperature changes, material creep, or pressure fluctuations, and improves the durability and reliability of the seal.

[0024] After the device is installed, the high-pressure water containing impurities enters the filter device from the water circulation pipeline, and flows sequentially through the nylon mesh support layer, activated carbon adsorption layer and polypropylene meltblown layer in the filter material 12. The nylon mesh provides structural support, the activated carbon adsorbs oil and organic matter, and the polypropylene meltblown layer intercepts metal particles and plastic debris. The purified clean water is then returned to the system for recycling.

[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water circulation filtration device for a corrugated pipe hydraulic forming machine, comprising a mounting frame (10), characterized in that: The mounting bracket (10) has a frame (11) on top, and filter material (12) is embedded in the inner wall of the frame (11). The mounting bracket (10) is provided with a connecting mechanism (20) for detachably fixing the frame (11) to the mounting bracket (10). The connecting mechanism (20) includes a spring (21) and a rotating plate (24). The spring (21) is fixedly connected to the bottom of the frame (11). A semi-cylindrical clip (22) is fixedly connected to the outer surface of the spring (21). A slot (23) is provided on the inner wall of the mounting bracket (10) at a corresponding position. The semi-cylindrical clip (22) is adapted to be inserted into the slot (23). The rotating plate (24) is rotatably connected to the inner wall of the mounting bracket (10) through a rotating shaft (26). A plurality of protrusions (25) are evenly distributed on the circumferential surface of the rotating plate (24). The plate (24) is fixedly connected to the handle (27) exposed on the mounting bracket (10) via the pivot (26). A round rod (281) is slidably connected to the inner wall of the rotating plate (24). The round rod (281) is elastically connected to the inner wall of the rotating plate (24) via the spring (282). A round groove (283) is provided at the corresponding position on the inner wall of the mounting bracket (10). An arc-shaped protrusion is provided at the end of the round rod (281) away from the spring (282). The arc-shaped protrusion is engaged with the round groove (283). A pressing mechanism (30) is also provided at the bottom of the frame (11).

2. The water circulation filtration device for the corrugated pipe hydraulic forming machine according to claim 1, characterized in that: The mounting bracket (10) has a plurality of evenly distributed mounting ears (13) fixedly connected to its circumferential outer wall, and each mounting ear (13) has a mounting hole (14).

3. The water circulation filtration device for the corrugated pipe hydraulic forming machine according to claim 1, characterized in that: The clamping mechanism (30) includes a sealing gasket (31), which is fixedly connected to the bottom of the frame (11).

4. The water circulation filtration device for the corrugated pipe hydraulic forming machine according to claim 3, characterized in that: The surface of the sealing gasket (31) is provided with a positioning groove (32), and the inner wall of the mounting bracket (10) is provided with a positioning block (33) that matches the positioning groove (32). The width of the positioning block (33) is equal to the width of the positioning groove (32).

5. The water circulation filtration device for the corrugated pipe hydraulic forming machine according to claim 4, characterized in that: The clamping mechanism (30) also includes a fixing plate (34), which is fixedly connected to the inner wall of the mounting bracket (10). An arc plate (35) is adapted to be installed on the top of the fixing plate (34), and the top of the arc plate (35) abuts against the bottom of the sealing gasket (31).

6. The water circulation filtration device for the corrugated pipe hydraulic forming machine according to claim 5, characterized in that: The arc plate (35) is made of a flexible metal material and has an arc-shaped structure when not subjected to external force.

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