Filter membrane tensioning device for filter element production
The filter membrane tensioning device, which uses a magnetic powder brake in conjunction with a PLC, solves the problem of unstable filter membrane tension by utilizing a high-friction coefficient rubber layer and guide rollers. This improves the quality and consistency of filter element production, simplifies the maintenance process, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional filter membrane tensioning devices are difficult to control the filter membrane tension precisely, resulting in unstable tension during the filter element winding process, which affects the quality and consistency of the filter element. In addition, existing devices have complex structures and high maintenance costs.
A magnetic powder brake is used in conjunction with a PLC to control the braking torque through a filter membrane tension calculation formula. Combined with a high-friction coefficient rubber layer and guide rollers, the tension of the filter membrane is kept constant during the winding process. An optical shaft and linear bearings are used to ensure the stability and accuracy of the clamping roller.
It achieves stable control of filter membrane tension, improves the quality and consistency of filter element winding, simplifies the device structure, facilitates maintenance, reduces maintenance costs, and meets the needs of efficient and stable filter element production.
Smart Images
Figure CN224105209U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to filter core production equipment related technical field, concretely relates to a filter membrane tensioner for filter core production. BACKGROUND
[0002] In the filter core production process, the tension of filter membrane is crucial to the quality of filter core, the traditional filter membrane tensioner often is difficult to control the tension of filter membrane accurately, with the change of filter membrane roll radius in the filter membrane winding process, the tension of filter membrane will fluctuate, and this unstable tension will lead to the inconsistent tightness of filter core winding, and further affect the filtering performance and overall quality of filter core, the structure of some existing tensioners is complex, the maintenance cost is high, and the reliability is poor, so it is difficult to meet the demand of modern filter core production for efficient and stable production, therefore, a filter membrane tensioner which can stably control the tension of filter membrane, is reasonable in structure and convenient to maintain is urgently needed. SUMMARY
[0003] The utility model discloses a filter membrane tensioner for filter core production, can control the tension of filter membrane accurately, ensures that the tension of filter membrane is constant in the winding process, thereby improves the production quality of filter core, and simultaneously simplifies the device structure, and is convenient for maintenance.
[0004] In order to achieve the above object, the utility model adopts the technical scheme of a filter membrane tensioner for filter core production, including magnetic powder brake, tensioning roller, two push air cylinders and membrane clamp roller.
[0005] The magnetic powder brake is coupled with the tensioning roller through a shaft coupling to provide a tensioning torque to the tensioning roller.
[0006] The two push air cylinders are used to push the membrane clamp roller to move up and down.
[0007] Both ends of the membrane clamp roller are equipped with linear bearings, and the linear bearings at both ends are provided with optical shafts.
[0008] Both ends of the optical shafts are provided with seat bearings.
[0009] The seat bearings at both ends are provided with guide rollers in the middle.
[0010] The membrane clamp roller moves up and down along the optical shaft under the pushing force of the push air cylinder to clamp the filter membrane with the tensioning roller.
[0011] The brake torque of the magnetic powder brake is set and kept constant by PLC.
[0012] Preferably, the tensioning roller is wrapped with a rubber layer for increasing the friction with the filter membrane.
[0013] Preferably, the rubber layer is made of a rubber material with high friction coefficient.
[0014] Preferably, the optical axis is vertically upwardly fixed relative to the film clamping roller, and the linear bearing is in sliding fit with the optical axis.
[0015] Preferably, the braking torque of the magnetic powder brake is kept constant according to the filter membrane tension calculation formula F = τ / r, wherein τ is the output torque of the magnetic powder brake, and r is the radius of the tension roller.
[0016] Preferably, the guide roller is mounted on the belt seat bearing through bearings at both ends.
[0017] Thanks to the use of the above technical solutions, the present application has the following beneficial effects compared with the prior art:
[0018] The filter membrane tension device for filter core production of the present application accurately controls the braking torque according to the filter membrane tension calculation formula through the cooperation of the magnetic powder brake and the PLC, ensures the constant tension of the filter membrane during winding, effectively solves the problem of unstable tension caused by the change of the filter membrane winding radius in the traditional device, and further improves the quality and consistency of filter core winding and the overall quality of the filter core.
[0019] The structure of each component of the device is reasonable, the cooperation of the optical axis and the linear bearing ensures the stability and accuracy of the movement of the film clamping roller, the high friction coefficient rubber layer wrapped outside the tension roller enhances the friction force with the filter membrane, the setting of the guide roller makes the filter membrane more stable, and the cooperative work of each component ensures the efficient operation of the entire tension device.
[0020] The structure of the device is relatively simple, the installation and connection mode of each component is convenient for disassembly and replacement, reduces the maintenance cost and difficulty, is conducive to improving the production efficiency, and meets the needs of filter core production enterprises for equipment reliability and easy maintenance. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0022] FIG. 1 is a structural schematic view of the filter membrane tension device for filter core production of the present application; Figure 1 FIG. 1 is a structural schematic view of the filter membrane tension device for filter core production of the present application;
[0023] FIG. 1 is a structural schematic view of the filter membrane tension device for filter core production of the present application; Figure 2 FIG. 1 is a structural schematic view of the filter membrane tension device for filter core production of the present application; FIG. 1 is a structural schematic view of the filter membrane tension device for filter core production of the present application;
[0024] 1, magnetic powder brake; 2, tension roller; 3, push cylinder; 4, film clamping roller; 5, shaft coupling; 6, linear bearing; 7, optical axis; 8, bearing with seat; 9, guide roller. DETAILED DESCRIPTION
[0025] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should belong to the scope of protection of the present application.
[0026] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0028] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.
[0029] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked", "sleeved" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0031] Embodiment one
[0032] Appendix Figure 1 , 2 A filter membrane tensioning device for filter element production according to the utility model, comprising a magnetic powder brake 1, a tensioning roller 2, two push air cylinders 3 and a film clamping roller 4;
[0033] The magnetic powder brake 1 is coupled with the tensioning roller 2 through a shaft coupling 5 to provide a tensioning torque to the tensioning roller 2; the tensioning roller 2 is externally wrapped with a rubber layer for increasing friction with the filter membrane; the rubber layer is made of high-friction rubber material for increasing friction with the filter membrane;
[0034] The two push air cylinders 3 are used to push the film clamping roller 4 to move up and down;
[0035] The film clamping roller 4 is equipped with linear bearings 6 at both ends, and optical shafts 7 are arranged above the linear bearings 6 at both ends; the optical shafts 7 are fixedly arranged vertically upward relative to the film clamping roller 4, and the linear bearings 6 are in sliding cooperation with the optical shafts 7 to ensure the stability and accuracy of the movement of the film clamping roller 4;
[0036] The optical shafts 7 at both ends are each provided with a bearing with seat 8 at the upper end;
[0037] A guide roller 9 is mounted and arranged in the bearing with seat 8 at both ends; the guide roller 9 is mounted on the bearing with seat 8 through bearings at both ends to realize flexible rotation;
[0038] The film clamping roller 4 moves up and down along the optical shafts 7 under the pushing force of the push air cylinders 3 to clamp the filter membrane with the tensioning roller 2;
[0039] The braking torque of the magnetic powder brake 1 is set and kept constant by PLC; the braking torque of the magnetic powder brake 1 is kept constant according to the filter membrane tensioning force calculation formula F = τ / r, wherein τ is the output torque of the magnetic powder brake 1, and r is the radius of the tensioning roller 2.
[0040] Specific device installation:
[0041] First, the optical axis 7 is vertically upwardly fixedly installed to ensure its stability and perpendicularity, and a bearing with seat 8 is installed at the upper end of the optical axis 7, which is firmly fixed on the optical axis 7 by a suitable fixing method (such as bolt connection, etc.).
[0042] The guide roller 9 is installed on the bearing with seat 8 through the bearings at both ends to ensure that the guide roller 9 can rotate flexibly.
[0043] Linear bearings 6 are assembled at both ends of the film clamping roller 4 to ensure that the linear bearings 6 are slidably installed with the optical axis 7, and the film clamping roller 4 can stably move up and down on the optical axis 7.
[0044] The tensioning roller 2 is installed in place, wrapped with a rubber layer of high friction coefficient outside the tensioning roller 2, and then the magnetic powder brake 1 is coupled with the tensioning roller 2 through the shaft coupling 5 to ensure the accuracy and stability of power transmission.
[0045] Finally, two push air cylinders 3 are installed at appropriate positions, the piston rods of the push air cylinders 3 are fixedly connected with the ends of the film clamping roller 4 through connecting pieces (such as pins, bolts, etc.), and the push air cylinders 3 can effectively drive the film clamping roller 4 to move up and down.
[0046] The working process is as follows:
[0047] In the filter core production preparation stage, the brake torque of the magnetic powder brake 1 is set through the PLC, the filter membrane tensioning force calculation formula F = τ / r is used, the required filter membrane tensioning force F and the radius r of the tensioning roller 2 in actual production are combined, the appropriate output torque τ of the magnetic powder brake 1 is determined and set on the PLC, and the brake torque of the magnetic powder brake 1 is kept constant.
[0048] When starting the filter membrane tensioning operation, the push air cylinder 3 is started, the piston rod of the push air cylinder 3 is extended, and the film clamping roller 4 is driven to move downward along the optical axis 7. During the movement, the film clamping roller 4 stably descends due to the good sliding fit of the linear bearings 6 with the optical axis 7, until it contacts and clamps the filter membrane.
[0049] The magnetic powder brake 1 starts to work, and the tensioning torque is transmitted to the tensioning roller 2 through the shaft coupling 5. Since the rubber layer wrapped outside the tensioning roller 2 has a large friction force with the filter membrane, under the action of the constant brake torque of the magnetic powder brake 1, the filter membrane is applied with stable tension, and the filter membrane is guided by the guide roller 9 to stably enter the tensioning process between the tensioning roller 2 and the film clamping roller 4, and then the subsequent filter core winding process is carried out.
[0050] In the whole filter core production process, even if the radius of the filter membrane roll changes during the winding process, since the braking torque of the magnetic powder brake 1 is kept constant through the PLC and the radius of the tensioning roller 2 is fixed, according to the filter membrane tension calculation formula F = τ / r, the tension F of the filter membrane is always kept constant, thereby ensuring the stability of the filter membrane tension during the filter core winding process and realizing high-quality filter core production.
[0051] When the production is finished or the device needs to be maintained, the magnetic powder brake 1 can be closed through the PLC, the push cylinder 3 is controlled to move the membrane clamping roller 4 upward along the optical axis 7, the filter membrane is loosened, and then corresponding inspection, cleaning or replacement and other maintenance operations are performed on each component.
[0052] The filter membrane tension device for filter core production of the application accurately controls the braking torque according to the filter membrane tension calculation formula through the cooperation of the magnetic powder brake 1 and the PLC, ensures the constant tension of the filter membrane during the winding process, effectively solves the problem of unstable tension caused by the change of the radius of the filter membrane roll in the traditional device, and further improves the quality and consistency of the filter core winding and the overall quality of the filter core.
[0053] The structure of each component of the device is reasonable, the cooperation of the optical axis 7 and the linear bearing 6 ensures the stability and accuracy of the movement of the membrane clamping roller 4, the high-friction coefficient rubber layer wrapped outside the tensioning roller 2 enhances the friction force with the filter membrane, the setting of the guide roller 9 makes the filter membrane more stable, and the coordinated work of each component ensures the efficient operation of the whole tensioning device.
[0054] The structure of the device is relatively simple, the installation and connection mode of each component is convenient for disassembly and replacement, reduces the maintenance cost and difficulty, is conducive to improving the production efficiency, and meets the needs of filter core production enterprises for equipment reliability and easy maintenance.
[0055] Finally, it should be noted that the above is only the preferred embodiment of the application and is not intended to limit the application, although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement of some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.
Claims
1. A filter membrane tensioning device for filter core production, characterized by: The magnetic powder brake, the tensioning roller, two push air cylinders and the film clamping roller are arranged in sequence from top to bottom. The magnetic powder brake is coupled with the tensioning roller through a shaft coupling to provide a tensioning torque to the tensioning roller. The two push air cylinders are used to push the film clamping roller to move up and down. Linear bearings are arranged at both ends of the film clamping roller, and optical shafts are arranged above the linear bearings at both ends. Seat bearings are arranged at the upper ends of the optical shafts at both ends. Guide rollers are arranged in the seat bearings at both ends. The film clamping roller moves up and down along the optical shafts under the pushing force of the push air cylinders to clamp the filter film with the tensioning roller. The braking torque of the magnetic powder brake is set and kept constant by a PLC.
2. The filter membrane tensioning device for filter core production according to claim 1, characterized in that: The tensioning roller is wrapped with a rubber layer for increasing the friction with the filter film.
3. The filter membrane tensioning device for filter core production according to claim 2, characterized in that: The rubber layer is made of rubber material with high friction coefficient.
4. The filter membrane tensioning device for filter core production according to claim 1, characterized in that: The optical shafts are arranged vertically upward relative to the film clamping roller, and the linear bearings are in sliding fit with the optical shafts.
5. The filter membrane tensioning device for filter core production according to claim 1, characterized in that: The braking torque of the magnetic powder brake is kept constant according to the filter film tensioning force calculation formula F=τ / r, wherein τ is the output torque of the magnetic powder brake, and r is the radius of the tensioning roller.
6. The filter membrane tensioning device for filter core production according to claim 1, characterized in that: The guide rollers are arranged in the seat bearings through bearings at both ends.