Ultrafiltration membrane cutting device
By designing a limiting and pressing mechanism, combined with a vacuum suction plate and a cutting mechanism, the problem of membrane wrinkles during the ultrafiltration membrane cutting process is solved, achieving high-precision and high-quality cutting results.
Patent Information
- Application Number
- CN202520594066.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing ultrafiltration membrane cutting devices are prone to causing membrane wrinkles during the cutting process, which affects the processing quality and results in a high defect rate.
The design combines a limiting mechanism and a pressing mechanism. The limiting cylinder drives the limiting component to fix the ultrafiltration membrane, while the pressing arm and pressure roller tightly press the membrane surface under the action of the elastic element. Combined with the precise movement of the vacuum suction plate and the cutting mechanism, the stability and accuracy of the membrane are ensured during the cutting process.
It improves the precision and quality of ultrafiltration membrane cutting, prevents membrane displacement due to tension or vibration during cutting, ensures the straightness and neatness of the cutting edges, and reduces the defect rate.
Smart Images
Figure CN223933699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter membrane cutting technology, and specifically to an ultrafiltration membrane cutting device. Background Technology
[0002] Ultrafiltration membranes are artificial permeable membranes used in the ultrafiltration process. They are generally made of polymeric materials such as cellulose acetate, cellulose acetate esters, polyethylene, polysulfone, and polyamide. They are usually prefabricated into various types of membrane modules, such as tubular, plate, spiral wound, and capillary types, and then multiple modules are assembled together for use to increase the filtration area and facilitate maintenance.
[0003] In practical applications, existing ultrafiltration membranes need to be cut into appropriate sizes according to actual usage requirements. Existing ultrafiltration membrane cutting devices usually adopt simple mechanical fixing and cutting methods. During the cutting process, the ultrafiltration membrane is prone to wrinkling, which affects the processing quality and results in a large number of defective products and a high defect rate. Utility Model Content
[0004] This invention provides an ultrafiltration membrane cutting device to address the problems of existing technologies.
[0005] The objective of this utility model can be achieved through the following technical solution: an ultrafiltration membrane cutting device, comprising: a worktable, a cutting groove being provided through the worktable, a cutting mechanism being provided at the lower end of the cutting groove and a limiting mechanism being provided at the upper end, the cutting mechanism being provided at the lower end of the cutting groove, the limiting mechanism comprising mounting columns fixedly disposed on both sides of the worktable, mounting plates disposed on the mounting columns, a limiting cylinder disposed on the mounting plates, and a limiting component fixedly disposed at the lower end of the piston rod of the limiting cylinder, a pressing mechanism being provided at the front end of the limiting mechanism, the pressing mechanism comprising a pressing arm, a pressing roller, and an elastic element, the front end of the pressing arm being rotatably disposed on the side wall of the worktable and the end being connected to the side wall of the worktable through the elastic element, the pressing roller being rotatably disposed in the middle of the pressing arm and its roller surface abutting against the upper surface of the worktable under the action of the elastic element.
[0006] In a further improvement, the cutting mechanism includes a reciprocating screw rotatably disposed within the worktable, a translational seat threadedly connected to the reciprocating screw, a cutting blade disposed on the upper end of the translational seat, and a drive motor fixedly disposed on the side wall of the worktable. The upper end of the cutting blade is slidably disposed within the cutting groove, and the output end of the drive motor is connected to one end of the reciprocating screw.
[0007] In a further improvement, a vacuum suction plate is provided at the front end of the cutting groove. The upper end of the vacuum suction plate is provided with several suction holes and its side end is connected to an external vacuum generator pipe.
[0008] In a further improvement, the limiting assembly includes a limiting plate fixedly disposed at the lower end of the piston rod of the limiting cylinder, a limiting arm fixedly disposed at the side end of the limiting plate, and a positioning plate slidably disposed at the lower end of the limiting arm, wherein a buffer spring is provided between the limiting arm and the positioning plate.
[0009] In a further improvement, the limiting arm, the limiting arm and the buffer spring are provided in two sets, and the two sets of the limiting arm, the limiting arm and the buffer spring are symmetrically arranged on both sides of the limiting plate.
[0010] Compared with the prior art, the present invention has the following advantages: The present invention uses a limiting cylinder in the limiting mechanism to drive the limiting component to move, which firmly fixes the ultrafiltration membrane on both sides of the cutting groove, thereby preventing the membrane from shifting laterally during the cutting process and ensuring the straightness and neatness of the cutting edge; At the same time, the pressing arm in the pressing mechanism, under the action of the elastic element, presses the pressure roller tightly against the upper surface of the ultrafiltration membrane, which not only prevents the membrane from shifting slightly due to tension or vibration during cutting, but also ensures that the membrane remains flat during the cutting process, avoiding cutting errors caused by wrinkles or looseness of the membrane. Through the dual protection mechanism, the accuracy and quality of ultrafiltration membrane cutting are improved, meeting the needs of high-precision production. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is the front view of the present invention;
[0013] Figure 3 This is a schematic diagram of the limiting component of this utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the workbench of this utility model.
[0015] In the diagram, 1. Workbench; 11. Cutting groove; 12. Vacuum suction plate; 121. Suction hole; 2. Cutting mechanism: 21. Reciprocating lead screw; 22. Translation seat; 23. Cutting blade; 24. Drive motor; 3. Limiting mechanism: 31. Mounting column; 32. Mounting plate; 33. Limiting cylinder; 34. Limiting assembly: 341. Limiting plate; 342. Limiting arm; 343. Positioning plate; 344. Buffer spring; 4. Pressing mechanism: 41. Pressing arm; 42. Pressure roller; 43. Elastic element. Detailed Implementation
[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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.
[0017] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] The following is a description of the embodiments and appendices. Figures 1-4 The technical solution of this utility model will be further described below.
[0019] Example 1
[0020] An ultrafiltration membrane cutting device includes: a worktable 1, a cutting groove 11 extending through the worktable 1, a cutting mechanism 2 at the lower end of the cutting groove 11 and a limiting mechanism 3 at the upper end, the cutting mechanism 2 being disposed at the lower end of the cutting groove 11, the limiting mechanism 3 including mounting posts 31 fixedly disposed on both sides of the worktable 1, a mounting plate 32 disposed on the mounting posts 31, a limiting cylinder 33 disposed on the mounting plate 32, and a limiting component 34 fixedly disposed at the lower end of the piston rod of the limiting cylinder 33, a pressing mechanism 4 being disposed at the front end of the limiting mechanism 3, the pressing mechanism 4 including a pressing arm 41, a pressing roller 42 and an elastic element 43, the front end of the pressing arm 41 being rotatably disposed on the side wall of the worktable 1 and the end being connected to the side wall of the worktable 1 through the elastic element 43, the pressing roller 42 being rotatably disposed in the middle of the pressing arm 41 and its roller surface abutting against the upper surface of the worktable 1 under the action of the elastic element 43.
[0021] like Figures 1-4 As shown, in practical application, the ultrafiltration membrane is first smoothly transported to the worktable 1 of the cutting device by the transport mechanism. The pressure roller 42 is attached to the upper surface of the ultrafiltration membrane under the action of the elastic element 43 to prevent it from shifting during the cutting process. During cutting, the limiting cylinder 33 drives the limiting component 34 to move, which firmly fixes the ultrafiltration membrane on both sides of the cutting groove 11 to ensure the stability of the membrane position during the cutting process. Subsequently, the cutting cylinder 21 drives the cutting blade 22 to move precisely along the cutting groove 11 to complete the precise cutting of the ultrafiltration membrane. After the cutting is completed, the limiting cylinder 33 and the pressing mechanism 4 are reset to facilitate the removal of the cut ultrafiltration membrane.
[0022] This invention uses a limiting cylinder in a limiting mechanism to drive the limiting component to move, firmly fixing the ultrafiltration membrane to both sides of the cutting groove. This prevents lateral displacement of the membrane during the cutting process, ensuring the straightness and neatness of the cut edges. At the same time, the pressing arm in the pressing mechanism, under the action of the elastic element, presses the pressure roller tightly against the upper surface of the ultrafiltration membrane. This not only prevents the membrane from undergoing slight displacement due to tension or vibration during cutting, but also ensures that the membrane remains flat during the cutting process, avoiding cutting errors caused by wrinkles or looseness of the membrane. Through this dual protection mechanism, the accuracy and quality of ultrafiltration membrane cutting are improved, meeting the needs of high-precision production.
[0023] As a further preferred embodiment, the cutting mechanism 2 includes a reciprocating screw 21 rotatably disposed in the worktable 1, a translation seat 22 threadedly connected to the reciprocating screw 21, a cutting blade 23 disposed on the upper end of the translation seat 22, and a drive motor 24 fixedly disposed on the side wall of the worktable 1. The upper end of the cutting blade 23 is slidably disposed in the cutting groove 11, and the output end of the drive motor 24 is connected to one end of the reciprocating screw 21 for transmission.
[0024] Specifically, the drive motor 24 drives the reciprocating screw 21 to rotate, causing the translation seat 22 to move smoothly along the cutting groove 11, thereby driving the cutting blade 23 to achieve precise cutting action. The high-precision transmission of the reciprocating screw 21 ensures precise control of the moving distance and speed of the cutting blade 23, improving the accuracy and efficiency of cutting. At the same time, the sliding setting of the cutting blade 23 in the cutting groove 11 ensures the stability and straightness of the cutting process, avoids possible deviation or shaking during the cutting process, and further improves the cutting quality.
[0025] As a further preferred embodiment, a vacuum suction plate 12 is provided at the front end of the cutting groove 11, and a plurality of suction holes 121 are provided through the upper end of the vacuum suction plate 12 and the side end is connected to the external vacuum generator pipe.
[0026] Specifically, during the cutting process, the vacuum suction plate 12 can tightly adsorb the ultrafiltration membrane, preventing minor displacement caused by vibration or tension during cutting, thus ensuring the accuracy and neatness of the cut edges. Simultaneously, the vacuum suction plate 12 works in conjunction with the limiting mechanism and the pressing mechanism to form multi-point fixation, further improving the stability of the ultrafiltration membrane during the cutting process. Furthermore, this non-contact adsorption method will not cause scratches or damage to the ultrafiltration membrane surface, protecting the membrane's integrity. It is particularly suitable for ultrafiltration membrane materials with high surface quality requirements.
[0027] As a further preferred embodiment, the limiting assembly 34 includes a limiting plate 341 fixedly disposed at the lower end of the piston rod of the limiting cylinder 33, a limiting arm 342 fixedly disposed at the side end of the limiting plate 341, and a positioning plate 343 slidably disposed at the lower end of the limiting arm 342, wherein a buffer spring 344 is disposed between the limiting arm 342 and the positioning plate 34.
[0028] Specifically, the limiting plate 341 and the limiting arm 342 work together to provide stable lateral support and prevent the ultrafiltration membrane from shifting laterally during cutting. The sliding design of the positioning plate 343 allows for fine-tuning according to the specific size of the ultrafiltration membrane to ensure the accuracy of the limit. The buffer spring 344 can absorb the impact force generated during the cutting process.
[0029] As a further preferred embodiment, the limiting arm 342, the limiting arm 342 and the buffer spring 344 are provided in two sets, and the two sets of the limiting arm 342, the limiting arm 342 and the buffer spring 344 are symmetrically arranged on both sides of the limiting plate 341.
[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. An ultrafiltration membrane cutting device, characterized in that, include: A workbench has a through-cutting groove. A cutting mechanism is located at the lower end of the cutting groove, and a limiting mechanism is located at the upper end. The cutting mechanism is located at the lower end of the cutting groove. The limiting mechanism includes mounting posts fixedly mounted on both sides of the workbench, mounting plates mounted on the mounting posts, a limiting cylinder mounted on the mounting plates, and a limiting component fixedly mounted at the lower end of the piston rod of the limiting cylinder. A pressing mechanism is located at the front end of the limiting mechanism. The pressing mechanism includes a pressing arm, a pressing roller, and an elastic element. The front end of the pressing arm is rotatably mounted on the side wall of the workbench, and the end is connected to the side wall of the workbench through the elastic element. The pressing roller is rotatably mounted in the middle of the pressing arm, and its roller surface abuts against the upper surface of the workbench under the action of the elastic element.
2. The ultrafiltration membrane cutting device according to claim 1, characterized in that, The cutting mechanism includes a reciprocating screw rotatably disposed within the worktable, a translation seat threadedly connected to the reciprocating screw, a cutting blade disposed on the upper end of the translation seat, and a drive motor fixedly disposed on the side wall of the worktable. The upper end of the cutting blade is slidably disposed within the cutting groove, and the output end of the drive motor is connected to one end of the reciprocating screw.
3. The ultrafiltration membrane cutting device according to claim 1, characterized in that, A vacuum suction plate is provided at the front end of the cutting groove. The upper end of the vacuum suction plate is provided with several suction holes and the side end is connected to the external vacuum generator pipe.
4. The ultrafiltration membrane cutting device according to claim 1, characterized in that, The limiting assembly includes a limiting plate fixedly disposed at the lower end of the piston rod of the limiting cylinder, a limiting arm fixedly disposed at the side end of the limiting plate, and a positioning plate slidably disposed at the lower end of the limiting arm. A buffer spring is provided between the limiting arm and the positioning plate.
5. The ultrafiltration membrane cutting device according to claim 4, characterized in that, The limiting arm, the limiting arm and the buffer spring are provided in two sets, and the two sets of the limiting arm, the limiting arm and the buffer spring are symmetrically arranged on both sides of the limiting plate.