Membrane wire cutting clamp
By designing a membrane wire cutting fixture including a buffer and a frequency converter motor, the problems of uneven cutting surface of the membrane wire tow and uncontrollable clamping force in the prior art are solved, and uniform clamping and efficient cutting of the membrane wire tow are achieved.
Patent Information
- Application Number
- CN202421407990.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing hollow fiber membrane wire cutting methods lack effective clamping and fixing, resulting in uneven cutting surfaces, uncontrollable clamping force, low efficiency, and easy to damage the membrane tow.
A membrane wire cutting fixture including a base, a lower clamp, a connecting plate, an upper clamp, a driving mechanism and a buffer are designed. The height of the upper clamp is adjusted by the buffer, and the clamping force is adjustable, and the frequency converter motor is used to achieve dynamic changes in the clamping operation speed.
The uniform clamping of the film tow is achieved, the cutting efficiency and neatness of the cutting surface are improved, the damage of the film tow is avoided, and the clamping force is controllable.
Smart Images
Figure CN222755590U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a clamp, in particular to a clamp used for cutting hollow fiber membranes. Background Art
[0002] Hollow fiber membranes are self-supporting membranes with fibrous appearance and selective permeability. They can be used for separation and purification of substances and are widely used in sewage purification, pharmaceutical purification and other fields. The cross-section of the prepared fiber membrane bundle is uneven and cannot be used directly. It usually needs to be cut and trimmed. The existing cutting methods are mostly manual cutting with scissors or other cutting tools. Due to the lack of effective fixation of the membrane bundle, the cross-section of the membrane bundle will be uneven; the existing clamping methods are mostly rigid clamping, and the clamping mechanism moves at a uniform speed until the membrane bundle is clamped. The efficiency is low and the clamping force is uncontrollable. Excessive force can easily damage the membrane bundle, and too little force will affect the cutting effect. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a membrane wire cutting clamp with adjustable clamping force in view of the above technical status quo.
[0004] The utility model solves the above technical problems by adopting the following technical solution: a film wire cutting fixture, characterized in that it includes
[0005] Base;
[0006] The lower clamping plate is arranged on the aforementioned base, and the upper end surface thereof has a material groove for setting the membrane wire;
[0007] A connecting plate, which is movably mounted on the aforementioned base;
[0008] An upper clamping plate is arranged on the aforementioned connecting plate and can be raised and lowered with the connecting plate. The upper clamping plate is arranged opposite to the lower clamping plate and is located above the lower clamping plate. When moved downward, the membrane wire can be clamped in the material groove of the upper clamping plate;
[0009] A driving mechanism is disposed on the aforementioned base and can drive the aforementioned lower clamping plate to rise and fall, and
[0010] The buffer is arranged on the aforementioned base and extends upwards. The top of the buffer is provided with a downwardly movable pressure rod, and the aforementioned connecting plate can abut against the aforementioned pressure rod when the connecting plate is in a descending state.
[0011] The driving mechanism may include
[0012] The motor is arranged longitudinally and has a power output terminal at the upper end;
[0013] A bracket, arranged on the base;
[0014] A screw rod is rotatably mounted on the bracket and arranged longitudinally, and the screw rod is connected to the power output end of the motor; and
[0015] The slider is movably arranged on the aforementioned screw rod, the interior of the slider is provided with an internal thread matched with the screw rod, and the connecting plate is connected to the slider.
[0016] Furthermore, one side of the bracket in the length direction is provided with a slide rail, and correspondingly, the sliding block is provided with a slide groove that cooperates with the guide of the aforementioned slide rail.
[0017] Furthermore, bearing seats are provided on both upper and lower sides of the bracket, and the bearing seats can be provided with bearings, and both ends of the screw rod are respectively rotatably matched with the bearings.
[0018] The driving mechanism may also be a cylinder invertedly arranged on the base, and the piston rod of the cylinder is connected to the connecting plate.
[0019] Preferably, there are two driving mechanisms, which are respectively located on both sides of the connecting plate, so that the operation is more stable.
[0020] Preferably, there are two buffers, which are respectively located on both sides of the upper clamping plate.
[0021] Compared with the prior art, the utility model has the following advantages: the upper clamping plate contacts the buffer during the rapid descent process, the pressure rod at the top of the buffer moves downward, the force on the upper clamping plate increases, and thus the descent speed decreases until it stops, at which time the upper clamping plate clamps the membrane bundle. By adjusting the installation height of the buffer, the final height of the upper clamping plate can be adjusted, and then the clamping force of the membrane bundle can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the structure of an embodiment.
[0023] Figure 2 Schematic diagram of the working state of the embodiment. DETAILED DESCRIPTION
[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0025] like Figure 1 As shown, the membrane wire cutting fixture in this embodiment includes a base 1, a lower clamping plate 2, a connecting plate 4, an upper clamping plate 3, a driving mechanism 6 and a buffer 5.
[0026] The lower clamping plate 2 is arranged on the base 1, and the upper end surface has a plurality of material grooves for setting the membrane filament bundle 10; the connecting plate 4 is arranged on the base 1 so as to be able to be raised and lowered; the upper clamping plate 3 is arranged on the connecting plate 4 and can be raised and lowered with the connecting plate 4, and the upper clamping plate 3 is arranged opposite to the lower clamping plate 2 and is located above the lower clamping plate 2, and can clamp the membrane filament bundle 10 in the material groove of the upper clamping plate 3 when it is moved downward.
[0027] The driving mechanism 6 is arranged on the base 1 and can drive the lower clamping plate 2 to rise and fall. In this embodiment, there are two sets of driving mechanisms 6, which are respectively located on both sides of the connecting plate 4. Each set of driving mechanisms includes a motor 61, a bracket 62, a screw rod 63 and a slider 64.
[0028] The motor 61 is arranged longitudinally and has a power output end at the upper end; the bracket 62 is arranged on the base 1; the screw rod 63 is rotatably arranged on the bracket 62 and arranged longitudinally, and the screw rod 63 is connected to the power output end of the motor 61; the slider 64 is movably arranged on the screw rod 63, and the slider 64 has an internal thread that cooperates with the screw rod 63, and the connecting plate 4 is connected to the slider 64.
[0029] The bracket 62 has a slide rail 65 on one side in the length direction, and correspondingly, the slider 64 has a slide groove that cooperates with the guide of the slide rail 65. The bracket 62 has bearing seats 66 on both sides, and the bearing seats 66 can be provided with bearings 67. The two ends of the screw rod 63 are respectively rotatably matched with the bearings 67.
[0030] The buffer 5 is arranged on the base 1 and extends upwards. The top of the buffer 5 has a downwardly movable pressure rod 51, and the connecting plate 4 can abut against the pressure rod 51 when it is in a descending state. There are two buffers 5 in this embodiment, which are respectively located on both sides of the upper clamping plate 3.
[0031] The buffer is installed at a suitable height, the upper clamp is in a high position, the membrane bundle is placed in the material groove of the lower clamp, the motor rotates, the upper clamp drops quickly, the upper clamp contacts the buffer, the pressure rod moves down, the force on the upper clamp increases, the motor load increases, the speed decreases, and the lowering speed of the upper clamp decreases until it stops. At this time, the upper clamp clamps the membrane bundle. Figure 2 shown.
[0032] The clamp can adjust the clamping force in a variable phase by adjusting the installation height of the buffer; the clamp uses the principle of the buffer and cooperates with the variable frequency motor to achieve dynamic changes in the clamping action speed of the clamp and improve efficiency.
Claims
1. A membrane wire cutting fixture, characterized in that include Base (1); A lower clamping plate (2) is arranged on the aforementioned base (1), and has a material trough on its upper end surface for setting the membrane bundle (10); A connecting plate (4) is movably mounted on the base (1); An upper clamping plate (3) is arranged on the aforementioned connecting plate (4) and can be raised and lowered along with the connecting plate (4). The upper clamping plate (3) is arranged opposite to the lower clamping plate (2) and is located above the lower clamping plate (2). When moved downward, the membrane bundle (10) can be clamped in the material trough of the upper clamping plate (3); A driving mechanism (6) is disposed on the base (1) and is capable of driving the lower clamping plate (2) to move upward and downward, and The buffer (5) is arranged on the aforementioned base (1) and extends upwards. The top of the buffer (5) is provided with a downwardly movable pressure rod (51). When the aforementioned connecting plate (4) is in a descending state, it can abut against the aforementioned pressure rod (51).
2. The film wire cutting fixture according to claim 1, characterized in that The driving mechanism (6) comprises A motor (61) is arranged longitudinally and has a power output end at the upper end; A bracket (62) is disposed on the base (1); A screw rod (63) is rotatably mounted on the bracket (62) and arranged longitudinally, and the screw rod (63) is connected to the power output end of the motor (61); and The slider (64) is movably arranged on the aforementioned screw rod (63), and the slider (64) has an internal thread matched with the screw rod (63). The connecting plate (4) is connected to the slider (64).
3. The film wire cutting fixture according to claim 2, characterized in that The bracket (62) has a slide rail (65) on one side in the length direction, and correspondingly, the slider (64) has a slide groove that cooperates with the guide of the slide rail (65).
4. The film wire cutting fixture according to claim 2, characterized in that The bracket (62) is provided with bearing seats (66) on both upper and lower sides. The bearing seats (66) can be provided with bearings (67). The two ends of the screw rod (63) are respectively rotatably matched with the bearings (67).
5. The film wire cutting fixture according to claim 1, characterized in that The driving mechanism is a cylinder which is invertedly arranged on the base, and the piston rod of the cylinder is connected to the connecting plate.
6. The film wire cutting fixture according to claim 1, characterized in that There are two driving mechanisms (6), which are respectively located on both sides of the connecting plate (4).
7. The film wire cutting fixture according to claim 1, characterized in that There are two buffers (5), which are respectively located on both sides of the upper clamping plate (3).