Pattern roller for ultrasonic composite automobile fuel filter material

By designing inlet and outlet pipes on the patterned roller and adjusting the roller surface temperature, the problem of decreased filter material performance caused by dense weld points was solved, and the stability of welding strength and production efficiency was achieved.

CN224145559UActive Publication Date: 2026-04-21TIANJIN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN UNIV OF SCI & TECH
Filing Date
2025-05-09
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The patterned rollers in existing ultrasonic composite equipment lack temperature control devices, which causes the strength of the weld joints and production efficiency to be affected by seasonal climate. The dense weld joints lead to increased fluid resistance of the filter material and decreased air permeability and dust holding capacity.

Method used

A patterned roller with an inlet and outlet water pipe was designed. The roller surface temperature is controlled by adjusting the water temperature to ensure that the weld point spacing is 5.5mm. The temperature is kept stable by a sealing ring and nut system to avoid the influence of temperature fluctuations.

Benefits of technology

This achieves welding strength and consistency, reduces fluid resistance, improves the air permeability and dust holding capacity of the filter material, and ensures production stability and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fuel filter patterned rollers, and discloses a patterned roller for ultrasonic composite automobile fuel filter materials, which comprises a roller, fixed welding spots are arranged on the outer wall of the roller, end cover shafts are fixedly mounted at two ends of the roller, shaft seats are rotatably connected to the exteriors of the end cover shafts, and the shaft seats are fixedly connected with the roller. A shaft cover is fixedly connected to the left end of the end cover shaft on the left side, a gland is connected to the left end of the shaft cover in an attached mode, a water inlet pipe is fixedly connected to the upper side of the interior of the gland, a water outlet pipe is fixedly connected to the lower side of the interior of the gland, and the water inlet pipe and the water outlet pipe penetrate through the gland and extend into the roller cavity. According to the utility model, the temperature of the roller surface is controlled to be constant, and the axial temperature of the roller body is ensured to be uniform, so that the welding strength is ensured to be stable, and the production efficiency is improved. The welding spot area after welding is reduced by increasing the distance between the welding spots, the loss of the air permeability of the filter material is reduced, the dust holding performance of the filter material is improved, and the service life of the filter is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of patterned rollers for fuel filters, and in particular to a patterned roller for ultrasonic composite automotive fuel filter materials. Background Technology

[0002] In the production process of composite fuel filter paper, synthetic fiber nonwoven fabric is bonded to plant fiber substrate. When running through the gap formed by the ultrasonic transducer and the patterned roller, the welding points on the roller surface of the patterned roller come into contact with the nonwoven fabric surface under a certain pressure. The high-frequency vibration of the ultrasonic transducer and the friction with the substrate generate heat, which softens or partially melts the synthetic fiber nonwoven fabric and gives it adhesive force, allowing it to bond with the substrate to form a point-bonded composite material layer.

[0003] Currently, the patterned rollers in ultrasonic composite equipment on the market lack roller surface temperature regulation devices. Temperature fluctuations in the patterned roller body also affect the weld strength and composite production speed. Due to seasonal temperature differences, low roller body temperature in winter affects weld strength and the increase in operating speed, while high roller body temperature in summer causes the ultrasonic transducer to overheat, leading to automatic protection shutdown of the equipment and affecting normal production operation, which in turn affects welding quality and production efficiency.

[0004] The shape, density, and temperature of the weld points on the patterned roller surface directly affect the physical properties and filtration performance of the composite filter material, as well as the weld strength of the composite layer.

[0005] Currently, the patterned rollers of ultrasonic composite equipment on the market have dense weld points, which increases the fluid resistance of the filter material, reduces the effective filtration area of ​​the non-woven material, and decreases the air permeability and dust holding capacity of the composite filter material. Therefore, a patterned roller for ultrasonic composite automotive fuel filter material is proposed to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a patterned roller for ultrasonic composite automotive fuel filter material, aiming to improve the problem of dense weld points in the existing patterned roller, which increases the fluid resistance of the filter material, reduces the effective filtration area of ​​the non-woven material, and the lack of a roller surface temperature adjustment device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a patterned roller for ultrasonic composite automotive fuel filter material, comprising a roller, a fixed welding point on the outer wall of the roller, end cap shafts fixedly installed at both ends of the roller, a shaft seat rotatably connected to the outside of the end cap shaft, a shaft cover fixedly connected to the left end of the left end cap shaft, a pressure cap fitted to the left end of the shaft cover, a water inlet pipe fixedly connected to the upper inside of the pressure cap, and a water outlet pipe fixedly connected to the lower inside of the pressure cap.

[0008] As a further description of the above technical solution:

[0009] The pressure cap is fixedly connected to the shaft seat by a screw. A spring is sleeved on the outer left side of the screw, and a nut is threadedly connected to the outer left side of the screw. The pressure cap is firmly installed on the shaft seat by pressing the spring with the nut.

[0010] As a further description of the above technical solution:

[0011] Both the shaft cover and the pressure cover have annular recessed grooves on the side closest to each other, and a sealing ring is installed inside the annular recessed groove.

[0012] As a further description of the above technical solution:

[0013] The inlet and outlet pipes extend through the pressure cap into the interior of the roller cavity, and several round holes are provided on the pipe sections extending into the roller cavity.

[0014] As a further description of the above technical solution:

[0015] The section of the inlet pipe extending into the roller cavity bends upwards, and the section of the outlet pipe extending into the roller cavity bends downwards.

[0016] As a further description of the above technical solution:

[0017] The sealing ring is made of polytetrafluoroethylene.

[0018] As a further description of the above technical solution:

[0019] The spacing between the solder joints is 5.5 mm.

[0020] As a further description of the above technical solution:

[0021] Valves are installed at both the inlet end of the water inlet pipe and the outlet end of the water outlet pipe.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this invention, the non-woven filter material between the weld points on the outer wall of the roller and the external ultrasonic transducer generates heat under high-frequency vibration. The non-woven fabric in contact with the weld points melts, thus bonding with the substrate under certain pressure. The weld point spacing is increased to 5.5 mm, reducing the welding area per unit area and minimizing filter material performance loss. To ensure the stability and consistency of welding strength, regulating water at a certain temperature is introduced into the roller through inlet and outlet pipes, and the valve opening is adjusted to maintain the roller surface temperature at -℃. The inlet and outlet pipes extend into the roller's interior, uniformly injecting and discharging regulating water axially to ensure uniform axial and radial temperatures, avoiding the influence of seasonal changes on temperature. The functions of the inlet and outlet pipes can be adjusted for heating or cooling.

[0024] 2. In this utility model, the pressure cap and the shaft seat are connected by a nut, and the spring is sleeved on the left side of the screw. Then, the nut is screwed on the screw to compress the spring, so that the pressure cap is firmly installed on the shaft seat and fixedly connected to the shaft seat. The sealing ring between the pressure cap and the shaft cover is used to seal the regulating water in the roller. The nut is adjusted to achieve the degree of compression of the sealing ring by the spring pressure, so as to prevent the regulating water from leaking or seeping. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a patterned roller for ultrasonic composite automotive fuel filter material proposed in this utility model.

[0026] Figure 2 This is a left perspective view of a patterned roller for ultrasonic composite automotive fuel filter material proposed in this utility model.

[0027] Figure 3 for Figure 1 Enlarged view at point B in the middle;

[0028] Figure 4 This is a cross-sectional view of a patterned roller for ultrasonic composite automotive fuel filter material proposed in this utility model.

[0029] Legend:

[0030] 1. Roller; 2. Welding point; 3. End cover shaft; 4. Shaft seat; 5. Shaft cover; 6. Sealing ring; 7. Pressure cover; 8. Screw; 9. Spring; 10. Nut; 11. Inlet pipe; 12. Outlet pipe; 13. Valve; 14. Round hole. Detailed Implementation

[0031] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-4 This utility model provides an embodiment of a patterned roller for ultrasonic composite automotive fuel filter material, comprising a roller 1, with fixed welding points 2 on the outer wall of the roller 1, the welding points 2 being spaced 5.5mm apart, serving to weld the filter material; end cap shafts 3 are fixedly installed at both ends of the roller 1, and a bearing seat 4 is rotatably connected to the outside of the end cap shaft 3, serving to fix and support the roller 1, and rotating freely together with the roller 1 within the bearing seat 4; a shaft cover 5 is fixedly connected to the left end of the left end cap shaft 3, and a pressure cap 7 is fitted to the left end of the shaft cover 5, with an inlet pipe 11 fixedly connected to the upper inside of the pressure cap 7, and an outlet pipe 12 fixedly connected to the lower inside of the pressure cap 7;

[0033] The inlet pipe 11 and the outlet pipe 12 extend through the pressure cap 7 into the cavity of the roller 1. Several round holes 14 are opened on the pipe sections of the inlet pipe 11 and the outlet pipe 12 that extend into the cavity of the roller 1. The pipe section of the inlet pipe 11 that extends into the cavity of the roller 1 bends upward, and the pipe section of the outlet pipe 12 that extends into the cavity of the roller 1 bends downward. A valve 13 is installed at the inlet end of the inlet pipe 11 and the outlet end of the outlet pipe 12.

[0034] Roller 1 is driven to rotate by an external power mechanism. The non-woven filter material between welding point 2 and the external ultrasonic transducer is subjected to high-frequency vibration and generates heat. The non-woven fabric in contact with welding point 2 melts and is bonded to the substrate under certain pressure. Compared with the dense welding points of the prior art, increasing the spacing between welding points can reduce the welding area per unit area, reduce the welding and bonding loss of synthetic fiber non-woven fabric, thereby reducing the loss of air permeability of composite filter material, improving the dust holding capacity of filter material, and increasing service life. To ensure the stability and consistency of welding strength, the temperature of the roller 1 surface must remain stable. A water inlet pipe 11 and a water outlet pipe 12 are installed at one end of the patterned roller 1 to circulate regulated water at a certain temperature and flow rate, maintaining the roller surface at a constant temperature (75-80℃). This also ensures that the axial roller surface temperature remains consistent, avoiding the impact of seasonal changes on the roller surface temperature. For example, in winter, when the low roller surface temperature affects the operating speed (reducing the operating speed is necessary), the patterned roller is heated; in summer, when the roller surface temperature rises, the roller body is cooled to prevent overheating and potential shutdown of the ultrasonic equipment, thus avoiding production efficiency losses.

[0035] Reference Figures 1-3 The pressure cap 7 is fixedly connected to the shaft seat 4 by the screw 8, so that the pressure cap 7 does not rotate with the roller 1 when it rotates. A spring 9 is sleeved on the outer left side of the screw 8, and a nut 10 is threadedly connected to the outer left side of the screw 8. The pressure cap 7 is firmly installed on the shaft seat 4 by the nut 10 pressing the spring 9. The shaft cover 5 and the pressure cap 7 are both provided with annular recessed grooves on the side close to each other. A sealing ring 6 is installed inside the annular recessed groove. The pressure of the spring 9 applies pressure to the pressure cap 7 to ensure the pressure between the pressure cap 7 and the sealing ring 6, ensuring that the liquid does not leak. The sealing ring 6 is made of polytetrafluoroethylene.

[0036] The pressure cap 7 is installed and connected to the shaft seat 4 by nut 10, and the spring 9 is sleeved on the left side of the screw 8. Then, the nut 10 is screwed onto the screw 8 to compress the spring 9, so that the pressure cap 7 is firmly installed on the shaft seat 4, thereby achieving a fixed connection with the shaft seat 4. During this process, the sealing ring 6 between the pressure cap 7 and the shaft cover 5 can effectively seal the regulating water in the roller 1, preventing the regulating water from leaking or seeping out of the roller 1, thereby ensuring the stability and safety of the equipment operation. Moreover, by adjusting the position of the nut 10, the pressure of the spring 9 can be changed, thereby affecting the tightness of the sealing ring 6, thus optimizing the water sealing performance and ensuring the stability and safety of the equipment operation.

[0037] Working Principle: When the device is needed, an external power mechanism drives roller 1 to rotate, which in turn drives the entire patterned roller device to work together. The non-woven filter material between the welding points 2 on the outer wall of roller 1 and the external ultrasonic transducer is subjected to high-frequency vibration, generating heat. The non-woven fabric in contact with the welding points 2 is in a molten state, causing the filter material to bond to the substrate under certain pressure. Compared with the dense welding of existing technologies, increasing the spacing of the welding points 2 of the patterned roller to 5.5mm reduces the welding area per unit area of ​​the synthetic fiber non-woven fabric, thus reducing the performance loss of the filter material. During operation, to ensure the stability and consistency of the welding strength of the filter material, the roller is subjected to high-frequency vibration through the inlet pipe 11 and the outlet pipe 12. Water at a certain temperature is introduced into the roller 1, and the opening of valve 13 on the inlet pipe 11 and outlet pipe 12 is adjusted to keep the roller surface temperature of the roller 1 at 75-80℃. Water is introduced into the roller 1 through both the inlet pipe 11 and the outlet pipe 12. Water is injected evenly into the inner wall of the inner cavity of the roller 1 through the round hole 14 via the inlet pipe 11, and water is discharged evenly from the cavity through the round hole 14 via the outlet pipe 12. This allows the roller 1 to be injected and discharged evenly along the axial direction, so that the axial and radial temperature of the roller surface of the roller 1 remains uniform and consistent, avoiding the influence of seasonal changes on the roller surface temperature. When the roller 1 is being heated or cooled, the functions of the inlet pipe 11 and the outlet pipe 12 can be reversed.

[0038] The pressure cap 7 is installed and connected to the shaft seat 4 by the nut 10, and the spring 9 is sleeved on the left side of the screw 8. Then, the nut 10 is screwed onto the screw 8 to compress the spring 9, so that the pressure cap 7 is firmly installed on the shaft seat 4 and fixedly connected to the shaft seat 4. The sealing ring 6 between the pressure cap 7 and the shaft cover 5 achieves the sealing of the regulating water in the roller 1. The nut 10 is adjusted to achieve the degree of compression of the sealing ring 6 by the pressure of the spring 9, so as to prevent the regulating water from leaking and seeping.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A patterned roll for ultrasonic composite automotive fuel filter material comprising a roll cylinder (1) characterised in that: The outer wall of the roller (1) has fixed welding points (2), and both ends of the roller (1) are fixedly installed with end cap shafts (3). The outer side of the end cap shaft (3) is rotatably connected with a shaft seat (4). The left end of the left end cap shaft (3) is fixedly connected with a shaft cover (5). The left end of the shaft cover (5) is fitted with a pressure cap (7). The upper inner side of the pressure cap (7) is fixedly connected with a water inlet pipe (11), and the lower inner side of the pressure cap (7) is fixedly connected with a water outlet pipe (12).

2. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 1, characterized in that: The pressure cap (7) is fixedly connected to the shaft seat (4) by a screw (8). A spring (9) is sleeved on the outer left side of the screw (8). A nut (10) is threadedly connected to the outer left side of the screw (8). The pressure cap (7) is firmly installed on the shaft seat (4) by pressing the spring (9) with the nut (10).

3. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 1, wherein: The shaft cover (5) and the pressure cover (7) are both provided with annular recessed grooves on the side close to each other, and a sealing ring (6) is installed inside the annular recessed groove.

4. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 1, wherein: The inlet pipe (11) and outlet pipe (12) extend through the pressure cap (7) into the interior of the roller (1) cavity. Several round holes (14) are provided on the pipe sections of the inlet pipe (11) and outlet pipe (12) extending into the interior of the roller (1) cavity.

5. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 1, wherein: The water inlet pipe (11) extends into the cavity of the roller (1) and bends upward, while the water outlet pipe (12) extends into the cavity of the roller (1) and bends downward.

6. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 3, wherein: The sealing ring (6) is made of polytetrafluoroethylene.

7. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 1, wherein: The spacing of the solder joints (2) is 5.5 mm.

8. A patterned roll for ultrasonic composite automotive fuel filter material according to claim 1, wherein: Valves (13) are installed at the inlet end of the water inlet pipe (11) and the outlet end of the water outlet pipe (12).