Ultrafiltration membrane cutting device

Abstract

The utility model discloses an ultrafiltration membrane cutting device, including cutting table, cutting tool, pressing plate, the middle part of cutting table is equipped with the long strip shaped cutter groove, the below of cutting table is equipped with negative pressure box, long strip shaped cutter groove communicates inside negative pressure box, cutting tool is located the just above long strip shaped cutter groove, cutting tool installs on the lifting frame, and the lifting frame is driven to lift by the lifting drive mechanism, and the pressing plate is located between cutting table and cutting tool, and the both ends of pressing plate are equipped with a plurality of guide holes, and a plurality of lower springs are equipped between pressing plate and cutting table, and the fine slit is equipped on the pressing plate. The utility model discloses a pressing plate realizes the stable pressure of ultrafiltration membrane, prevents the displacement deformation when cutting, and the oblique cutting edge design realizes the point contact progressive cutting, and effectively promotes the notch flatness, and the negative pressure adsorption system can remove the cutting debris in time, avoids the membrane surface pollution. The whole structure is reasonable, and the positioning is adjustable, and the cutting precision of ultrafiltration membrane, the finished product quality and operation efficiency are improved obviously.

Description

Technical Field

[0001] This utility model belongs to the technical field of ultrafiltration membrane processing equipment, specifically relating to an ultrafiltration membrane cutting device. Background Technology

[0002] Ultrafiltration membranes, as highly efficient separation materials, are widely used in water treatment, biopharmaceuticals, and the food industry. During their processing, they often need to be cut to the required dimensions for the specific application. Traditional cutting methods rely heavily on manual labor or simple machinery, resulting in low cutting precision, easily deformed cut edges, and severe debris contamination. In particular, ultrafiltration membranes are soft and have a precise structure, making them susceptible to tearing during cutting, which can damage the membrane pore structure. Furthermore, the resulting micron-sized debris easily adheres to the membrane surface and is difficult to remove, severely impacting product performance and lifespan. While some existing cutting equipment utilizes negative pressure adsorption for fixation, it still suffers from uneven clamping force, significant blade impact, and incomplete debris collection, failing to meet the precision cutting requirements for high-quality ultrafiltration membranes. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an ultrafiltration membrane cutting device, including a cutting table, a cutting blade, and a pressure plate. The cutting table has a long strip-shaped blade groove in the middle, and a negative pressure box is provided below the cutting table. The long strip-shaped blade groove is connected to the inside of the negative pressure box. The negative pressure box forms a negative pressure through a negative pressure mechanism. The cutting blade is located directly above the long strip-shaped blade groove and is mounted on a lifting frame. Several sliding sleeves are fixedly connected to both ends of the lifting frame. Vertical guide rods are inserted into the sliding sleeves and are fixedly connected to the cutting table. The lifting frame is driven to move up and down by a lifting drive mechanism. The pressure plate is located between the cutting table and the cutting blade. Several guide holes are provided at both ends of the pressure plate for the vertical guide rods to move through. Several lower springs are provided between the pressure plate and the cutting table. The lower springs are respectively sleeved on the vertical guide rods. The pressure plate has a slit for the cutting blade to move through.

[0004] As a preferred embodiment of the above technical solution, a plurality of upper springs are provided between the lifting frame and the pressure plate, and the upper springs are respectively sleeved on the vertical guide rod.

[0005] As a preferred embodiment of the above technical solution, the cutting blade is positioned with its blade facing downwards, the blade height of the cutting blade gradually increases, and the cutting blade is connected to the lifting frame by several screws.

[0006] As a preferred embodiment of the above technical solution, the negative pressure mechanism includes a fan, and the lower end of the negative pressure box is connected to an air outlet pipe, with the fan installed on the air outlet pipe.

[0007] As a preferred embodiment of the above technical solution, a plurality of positioning rods are installed on the cutting table.

[0008] As a preferred embodiment of the above technical solution, the cutting table is provided with a number of insertion holes at even intervals, and the insertion holes are for the lower end of the positioning rod to be inserted.

[0009] As a preferred embodiment of the above technical solution, the lifting drive mechanism includes a cylinder or an electric push rod, which is fixed on a fixed plate, and the upper ends of the vertical guide rods are respectively fixedly connected to both ends of the fixed plate.

[0010] As a preferred embodiment of the above technical solution, the lower surface of the pressure plate is provided with an elastic buffer layer.

[0011] The beneficial effects of this invention are as follows: The ultrafiltration membrane cutting device of this invention achieves stable clamping of the ultrafiltration membrane through a pressure plate, preventing displacement and deformation during cutting; the inclined blade design enables point-contact progressive cutting, effectively improving the flatness of the cut; the negative pressure adsorption system can instantly remove cutting debris, avoiding membrane surface contamination; the upper and lower spring buffer structure ensures the stability of the cutting process and rapid blade reset. The overall structure is reasonable, the positioning is adjustable, and it significantly improves the cutting accuracy, finished product quality, and operational efficiency of the ultrafiltration membrane. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] like Figure 1-2 As shown, the ultrafiltration membrane cutting device includes a cutting table 1, a cutting blade 2, and a pressure plate 3. The cutting table 1 has a long strip-shaped groove 4 in the middle, and a negative pressure box 5 is located below the cutting table 1. The long strip-shaped groove 4 is connected to the inside of the negative pressure box 5, and the negative pressure box 5 forms a negative pressure through a negative pressure mechanism. The cutting blade 2 is located directly above the long strip-shaped groove 4 and is mounted on a lifting frame 6. Several sliding sleeves 7 are fixedly connected to both ends of the lifting frame 6, and vertical guide rods 8 are inserted into the sliding sleeves 7. The vertical guide rods 8 are fixedly connected to the cutting table 1. The lifting frame 6 is driven to lift by a lifting drive mechanism. The pressure plate 3 is located between the cutting table 1 and the cutting blade 2. Several guide holes 9 are provided at both ends of the pressure plate 3 for the vertical guide rods 8 to move through. Several lower springs 10 are provided between the pressure plate 3 and the cutting table 1. The lower springs 10 are respectively sleeved on the vertical guide rods 8. A slit 11 is provided in the middle of the pressure plate 3 for the cutting blade 2 to move through. The ultrafiltration membrane is placed on the cutting table 1, with the cutting position located above the elongated cutting groove 4. The lifting drive mechanism lowers the lifting frame 6, causing the cutting blade 2 and pressure plate 3 to descend as well. The pressure plate 3 covers the ultrafiltration membrane, securing it in place. The cutting blade 2 continues to descend, passing through the slit 11 to cut the secured ultrafiltration membrane. Debris generated during the cutting process is sucked into the negative pressure chamber 5 through the elongated cutting groove 4.

[0017] Furthermore, several upper springs 12 are provided between the lifting frame 6 and the pressure plate 3, and the upper springs 12 are respectively sleeved on the vertical guide rod 8. The upper springs 12 buffer the cutting tool 2 during the descent cutting process, and the cutting tool 2 can quickly rise and return to its original position after cutting is completed.

[0018] Furthermore, the cutting blade 2 is positioned with its blade facing downwards, and the blade height gradually increases. The cutting blade 2 is connected to the lifting frame 6 by several screws. During the cutting process, the cutting blade 2 gradually contacts the ultrafiltration membrane, forming continuous point contact, reducing the contact area, resulting in a smooth cut, preventing the ultrafiltration membrane from being stretched and deformed, and allowing debris generated during the cutting process to be quickly and completely absorbed.

[0019] Furthermore, the negative pressure mechanism includes a fan 13, and an air outlet pipe 14 is connected to the lower end of the negative pressure box 5. The fan 13 is mounted on the air outlet pipe 14. The operation of the fan 13 creates a negative pressure inside the negative pressure box 5, thereby sucking away the debris generated during the cutting process and preventing tiny debris from adhering to the surface of the ultrafiltration membrane. A filter screen for trapping debris can be installed in the air outlet pipe 14.

[0020] Furthermore, a plurality of positioning rods 15 are installed on the cutting table 1. The positioning rods 15 are used to position the ultrafiltration membrane, thereby improving the cutting accuracy.

[0021] Furthermore, the cutting table 1 is provided with a plurality of evenly spaced insertion holes 16 for the lower ends of the positioning rods 15 to be inserted. The ultrafiltration membrane is then placed on the cutting table. The number and position of the positioning rods 15 can be adjusted as needed to accommodate the cutting requirements of ultrafiltration membranes of different specifications.

[0022] Furthermore, the lifting drive mechanism includes a cylinder 17, which is fixed to a fixed plate 18. The upper ends of the vertical guide rods 8 are fixedly connected to both ends of the fixed plate 18. The output shaft of the cylinder 17 is fixedly connected to the middle of the lifting frame 6. The cylinder 17 drives the lifting frame 6 to rise and fall, thereby driving the cutting tool 2 to move up and down to cut the ultrafiltration membrane.

[0023] Furthermore, an elastic buffer layer is provided on the lower surface of the pressure plate 3. The elastic buffer layer is made of silicone and fixed to the lower surface of the pressure plate 3. The elastic buffer layer protects the ultrafiltration membrane, increases the friction of the pressure plate 3, improves the uniformity of the force on the ultrafiltration membrane, prevents the ultrafiltration membrane from slipping during the cutting process, and makes the cut surface neat.

[0024] It is worth mentioning that the technical features such as cylinders, electric push rods, fans, and springs involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0025] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. An ultrafiltration membrane cutting device, characterized in that, The device includes a cutting table, a cutting tool, and a pressure plate. The cutting table has a long, narrow groove in the middle, and a negative pressure box is located below the cutting table. The long, narrow groove connects to the inside of the negative pressure box, which generates negative pressure through a negative pressure mechanism. The cutting tool is located directly above the long, narrow groove and is mounted on a lifting frame. Several sliding sleeves are fixedly connected to both ends of the lifting frame, and vertical guide rods are inserted into the sliding sleeves. The vertical guide rods are fixedly connected to the cutting table. The lifting frame is driven to move up and down by a lifting drive mechanism. The pressure plate is located between the cutting table and the cutting tool. Several guide holes are provided at both ends of the pressure plate for the vertical guide rods to move through. Several lower springs are provided between the pressure plate and the cutting table, and the lower springs are respectively fitted onto the vertical guide rods. The pressure plate has a narrow slit for the cutting tool to move through.

2. The ultrafiltration membrane cutting device as described in claim 1, characterized in that, Several upper springs are provided between the lifting frame and the pressure plate, and the upper springs are respectively sleeved on the vertical guide rod.

3. The ultrafiltration membrane cutting device as described in claim 1, characterized in that, The cutting blade is positioned with its blade facing downwards, and the blade height gradually increases. The cutting blade is connected to the lifting frame by several screws.

4. The ultrafiltration membrane cutting device as described in claim 1, characterized in that, The negative pressure mechanism includes a fan, and the lower end of the negative pressure box is connected to an air outlet pipe, with the fan installed on the air outlet pipe.

5. The ultrafiltration membrane cutting device as described in claim 1, characterized in that, Several positioning rods are installed on the cutting table.

6. The ultrafiltration membrane cutting device as described in claim 5, characterized in that, The cutting table is provided with several evenly spaced insertion holes for the lower end of the positioning rod to be inserted.

7. The ultrafiltration membrane cutting device as described in claim 1, characterized in that, The lifting drive mechanism includes a cylinder or an electric push rod, which is fixed on a fixed plate. The upper ends of the vertical guide rods are fixedly connected to both ends of the fixed plate.

8. The ultrafiltration membrane cutting device as described in claim 1, characterized in that, The lower surface of the pressure plate is provided with an elastic buffer layer.

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