A kind of auxiliary clamping mechanism for filter membrane bidirectional stretching

Abstract

The utility model discloses an auxiliary clamping mechanism for filter membrane bidirectional stretching, it includes, bottom plate is provided with workstation on the bottom plate, four support posts are fixedly connected with the upper surface of workstation, four the upper surface fixedly connected with fixed plate of support post, be provided with two sliding slot on the fixed plate, two the inner surface sliding connection of sliding slot has two sliding blocks, the lateral surface fixedly connected with support of fixed plate, the inner surface rotationally connected with transmission wheel no.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary clamping technology, and in particular to an auxiliary clamping mechanism for bidirectional stretching of filter membranes. Background Technology

[0002] As a core component in water treatment, biomedicine, and electronics manufacturing, the performance of filter membranes directly depends on the stretching process in the production process. Traditional filter membrane stretching technologies generally suffer from the following problems: Existing devices often use mechanical clamps or manual clamping, making it difficult to ensure uniform force on both ends of the filter membrane. Mechanical clamping can easily lead to excessive local pressure, causing damage or deformation at the membrane edges. Manual operation, on the other hand, suffers from inconsistent clamping tightness, directly affecting the stability of the subsequent stretching process and potentially causing membrane misalignment or breakage. Traditional stretching devices are mostly unidirectional stretching structures, with the filter membrane subjected to force in only one direction, easily leading to uneven membrane thickness, discrete pore size distribution, and even tearing. Furthermore, manual control of stretching speed and force is prone to operational errors, resulting in significant performance differences between batches of filter membranes and a low finished product yield, particularly failing to meet the production requirements of high-precision filter membranes. In existing processes, filter membrane fixing and stretching rely on manual operation, making the process cumbersome and time-consuming, and unsuitable for large-scale production. Manual intervention not only increases labor costs, but may also exacerbate errors due to operator fatigue, resulting in low production efficiency and difficulty in meeting the consistency and capacity requirements of industrial mass production. Traditional equipment is usually designed for filter membranes of specific materials or specifications, making it difficult to flexibly adjust stretching parameters. When different types of filter membranes need to be produced, the entire set of fixtures or equipment needs to be replaced, resulting in high debugging costs and poor versatility. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an auxiliary clamping mechanism for bidirectional stretching of filter membranes. This solves the problem that mechanical clamping of filter membranes with uneven force at both ends is prone to damage or deformation of the filter membrane edges due to excessive local pressure, while manual operation has the problem of inconsistent clamping tightness. Traditional stretching devices are mostly unidirectional stretching structures, and the filter membrane is only subjected to force in one direction, which can easily lead to uneven membrane thickness, discrete pore size distribution, and even tearing. When manually controlling the stretching speed and force, it is difficult to avoid operational errors, resulting in significant differences in the performance of different batches of filter membranes and a low finished product qualification rate.

[0004] This utility model also provides an auxiliary clamping mechanism for bidirectional stretching of filter membranes, with the following advantages: The operator places both ends of the filter membrane above the two clamping plates. A hydraulic cylinder drives a hydraulic push rod downwards, which in turn drives clamping plate one downwards to fit against clamping plate two, fixing both ends of the filter membrane. Subsequently, a servo motor drives transmission wheel two to rotate a belt, which in turn drives transmission wheel one to rotate, controlling the bidirectional lead screw. The bidirectional lead screw drives a slider to control clamping plates one and two to move towards both ends, performing bidirectional stretching of the filter membrane. The entire process from fixing the filter membrane to stretching is controlled collaboratively by a hydraulic system and a servo motor, reducing manual intervention and operational errors. It is suitable for large-scale production scenarios and significantly improves production efficiency. It avoids problems such as uneven force and speed fluctuations during manual stretching, ensuring the consistency of the stretching process for each filter membrane and improving the finished product qualification rate.

[0005] This technical solution provides an auxiliary clamping mechanism for biaxial stretching of filter membranes, comprising: a base plate, a worktable mounted on the base plate, four pillars fixedly connected to the upper surface of the worktable, a fixing plate fixedly connected to the upper surface of the four pillars, two sliding grooves on the fixing plate, two sliders slidably connected to the inner surfaces of the two sliding grooves, a bracket fixedly connected to the side surface of the fixing plate, a drive wheel rotatably connected to the inner surface of the bracket, a belt rotatably connected to the outer surface of the drive wheel rotatably, two drive wheels rotatably connected to the inner surface of the belt, a biaxial lead screw fixedly connected to one end of each of the two drive wheels, a slider threadedly connected to the biaxial lead screw, a connecting plate fixedly connected to the lower surface of the slider, a drive rod fixedly connected to the lower surface of the connecting plate, a clamping plate fixedly connected to the lower end of the drive rod, and a clamping plate fixedly connected to the lower surface of the connecting plate. A hydraulic cylinder is connected, with a hydraulic push rod fixedly connected to the output end of the hydraulic cylinder. The other end of the hydraulic push rod is fixedly connected to a clamping plate. The operator places both ends of the filter membrane above the two clamping plates. The hydraulic cylinder drives the hydraulic push rod downward, which in turn drives the clamping plate to move downward and fit against the clamping plate, fixing both ends of the filter membrane. Subsequently, a servo motor drives a transmission wheel to rotate a belt, which in turn drives a transmission wheel to rotate, controlling the bidirectional screw. The bidirectional screw drives a slider to control the clamping plates to move in both directions, stretching the filter membrane bidirectionally. The entire process from fixing the filter membrane to stretching is controlled collaboratively by the hydraulic system and the servo motor, which can reduce manual intervention, reduce operational errors, is suitable for large-scale production scenarios, and significantly improve production efficiency. It avoids problems such as uneven force and speed fluctuations during manual stretching, ensuring the consistency of the stretching process for each filter membrane and improving the finished product qualification rate.

[0006] According to the present invention, an auxiliary clamping mechanism for biaxial stretching of filter membranes is provided. A servo motor is fixedly connected to the outer surface of the support. The output end of the servo motor extends into the interior of the support. The second transmission wheel is driven by the servo motor. The direct connection between the servo motor and the second transmission wheel reduces mechanical losses. The servo motor can precisely control the stretching speed, displacement, and force to meet the high-precision requirements of different filter membrane materials for the stretching process.

[0007] According to the present invention, an auxiliary clamping mechanism for biaxial stretching of filter membranes is provided on the fixed plate, and the biaxial screw is rotatably connected inside the fixed plate. The biaxial screw does not contact the fixed plate during operation, thus reducing mechanical wear.

[0008] According to the present invention, an auxiliary clamping mechanism for bidirectional stretching of filter membranes is provided, wherein the sliders on both sides are symmetrically designed, and the clamping plate one and clamping plate two are also symmetrically designed. The symmetrical design enables synchronous stretching of the filter membranes on both sides.

[0009] According to the present invention, an auxiliary clamping mechanism for bidirectional stretching of filter membrane is provided at both ends of the transmission wheel two, and the clamping plate one is located above the clamping plate two.

[0010] According to the present invention, an auxiliary clamping mechanism for biaxial stretching of filter membranes is provided, wherein the worktable is located above the base plate, and the worktable is made of stainless steel, which is more resilient, less prone to damage, and relatively inexpensive.

[0011] According to the present invention, an auxiliary clamping mechanism for biaxial stretching of filter membranes is provided on both clamping plate one and clamping plate two. The soft plate is made of rubber and can play a role in preventing slippage.

[0012] According to the present invention, an auxiliary clamping mechanism for bidirectional stretching of filter membranes is provided, wherein a support leg is fixedly connected to the lower surface of the base plate, and a rubber plate is fixedly connected to the lower surface of the support leg. The rubber plate can reduce noise during the operation of the instrument.

[0013] Beneficial effects: The operator places both ends of the filter membrane above the two clamping plates. The hydraulic cylinder drives the hydraulic push rod downward, which in turn drives the clamping plate one downward to fit against the clamping plate two, fixing both ends of the filter membrane. Subsequently, the servo motor drives the transmission wheel two to rotate the belt, which in turn drives the transmission wheel one to rotate, controlling the bidirectional lead screw. The bidirectional lead screw drives the slider to control the clamping plates one and two to move in both directions, stretching the filter membrane in both directions. The entire process from fixing the filter membrane to stretching is controlled by the hydraulic system and the servo motor in a coordinated manner, which can reduce manual intervention, reduce operational errors, is suitable for large-scale production scenarios, and significantly improve production efficiency. It avoids problems such as uneven force and speed fluctuations during manual stretching, ensuring the consistency of the stretching process for each filter membrane and improving the finished product qualification rate. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of the auxiliary clamping mechanism for biaxial stretching of filter membranes according to this utility model.

[0016] Figure 2 This is a rear view of the auxiliary clamping mechanism for biaxial stretching of filter membranes according to this utility model.

[0017] Figure 3 This is a top view of the auxiliary clamping mechanism for biaxial stretching of filter membranes according to this utility model.

[0018] Figure 4 This is a bottom view of the auxiliary clamping mechanism for biaxial stretching of filter membranes according to the present invention.

[0019] Legend:

[0020] 1. Fixed plate; 2. Two-way lead screw; 3. Slider; 4. Slide groove; 5. Support column; 6. Base plate; 7. Support leg; 8. Rubber plate; 9. Insertion hole; 10. Limiting plate; 11. Belt; 12. Bracket; 13. Transmission wheel one; 14. Servo motor; 15. Hydraulic push rod; 16. Clamping plate one; 17. Transmission rod; 18. Clamping plate two; 19. Connecting plate; 20. Hydraulic cylinder; 21. Transmission wheel two; 22. Worktable. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figures 1-4This utility model provides an auxiliary clamping mechanism for biaxial stretching of filter membranes, comprising: a base plate 6, a worktable 22 on the base plate 6, four pillars 5 fixedly connected to the upper surface of the worktable 22, a fixing plate 1 fixedly connected to the upper surface of the four pillars 5, two sliding grooves 4 on the fixing plate 1, two sliders 3 slidably connected to the inner surface of each of the two sliding grooves 4, a bracket 12 fixedly connected to the side surface of the fixing plate 1, a transmission wheel 13 rotatably connected to the inner surface of the bracket 12, a belt 11 rotatably connected to the outer surface of the transmission wheel 13, two transmission wheels 21 rotatably connected to the inner surface of the belt 11, a biaxial screw 2 fixedly connected to one end of each of the two transmission wheels 21, the sliders 3 being threadedly connected to the biaxial screw 2, and a motor 14 fixedly connected to the outer surface of the bracket 12, the output end of the motor 14 penetrating into the interior of the bracket 12, and the transmission wheels 21 being driven by the motor 14.

[0023] Specifically: Servo motor 14 is controlled by PLC. Servo motor 14 drives transmission wheel 21 to rotate belt 11, which in turn drives transmission wheel 13 to rotate, controlling the bidirectional lead screw 2 to run. Bidirectional lead screw 2 drives slider 3 to control clamping plate 15 and clamping plate 28 to run in both directions to stretch the filter membrane in both directions. The entire process from fixing the filter membrane to stretching is controlled by hydraulic cylinder 20 and servo motor 14 in coordination. This can reduce manual intervention, reduce operational errors, is suitable for large-scale production scenarios, and significantly improve production efficiency. It avoids problems such as uneven force and speed fluctuations during manual stretching, ensuring the consistency of the stretching process of each filter membrane and improving the finished product qualification rate.

[0024] A connecting plate 19 is fixedly connected to the lower surface of the slider 3. A transmission rod 17 is fixedly connected to the lower surface of the connecting plate 19. A clamping plate 18 is fixedly connected to the lower end of the transmission rod 17. A hydraulic cylinder 20 is fixedly connected to the lower surface of the connecting plate 19. A hydraulic push rod 15 is fixedly connected to the output end of the hydraulic cylinder 20. The other end of the hydraulic push rod 15 is fixedly connected to a clamping plate 16.

[0025] Specifically: The staff places both ends of the filter membrane above the two clamping plates 18 on both sides. The hydraulic cylinder 20 drives the hydraulic push rod 15 to move downward. Then, the hydraulic push rod 15 drives the clamping plate 16 to move downward and fit with the clamping plate 18, fixing both ends of the filter membrane. This can make the filter membrane evenly stressed at both ends and avoid edge damage or deformation due to local pressure.

[0026] The fixed plate 1 is provided with a socket 9. The bidirectional lead screw 2 is rotatably connected inside the socket 9. The sliders 3 on both sides are symmetrically designed. The clamping plate 16 and clamping plate 28 are also symmetrically designed. The transmission wheel 21 is provided with limit plates 10 at both ends. The clamping plate 16 is located above the clamping plate 28. The worktable 22 is located above the base plate 6. The worktable 22 is made of stainless steel. The clamping plate 16 and clamping plate 28 are both provided with soft plates. The soft plates are made of rubber. The lower surface of the base plate 6 is fixedly connected with a support leg 7. The lower surface of the support leg 7 is fixedly connected with a rubber plate 8.

[0027] Specifically: the bidirectional lead screw 2 is rotatably connected inside the insertion hole 9. The bidirectional lead screw 2 does not contact the fixed plate during operation, reducing mechanical wear. The symmetrical design enables synchronous stretching of the filter membranes on both sides, avoiding an increase in defective products due to asynchronous stretching. The stainless steel material has better toughness, is not easily damaged, and is relatively inexpensive. The rubber plate 8 can reduce noise during instrument operation.

[0028] Working principle: Servo motor 14 drives transmission wheel 21 to rotate belt 11, which in turn drives transmission wheel 13 to rotate, controlling the bidirectional lead screw 2 to run. The bidirectional lead screw 2 drives slider 3 to control clamping plate 15 and clamping plate 28 to run in both directions to stretch the filter membrane in both directions. The entire process from fixing the filter membrane to stretching is controlled by hydraulic cylinder 20 and servo motor 14 in coordination, which can reduce manual intervention, reduce operational errors, is suitable for large-scale production scenarios, and significantly improve production efficiency. It avoids problems such as uneven force and speed fluctuations during manual stretching, ensures the consistency of the stretching process of each filter membrane, and improves the finished product qualification rate.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An auxiliary clamping mechanism for biaxial stretching of filter membranes, characterized in that, include: A base plate (6) is provided with a workbench (22). Four support columns (5) are fixedly connected to the upper surface of the workbench (22). A fixing plate (1) is fixedly connected to the upper surface of the four support columns (5). Two sliding grooves (4) are provided on the fixing plate (1). Two sliders (3) are slidably connected to the inner surfaces of the two sliding grooves (4). A bracket (12) is fixedly connected to the side surface of the fixing plate (1). A transmission wheel (13) is rotatably connected to the inner surface of the bracket (12). A belt (11) is rotatably connected to the outer surface of the transmission wheel (13). A belt (11) is rotatably connected to the inner surface of the belt (11). Two transmission wheels (21) are provided, and one end of each of the two transmission wheels (21) is fixedly connected to a bidirectional lead screw (2). The slider (3) is threadedly connected to the bidirectional lead screw (2). A connecting plate (19) is fixedly connected to the lower surface of the slider (3). A transmission rod (17) is fixedly connected to the lower surface of the connecting plate (19). A clamping plate (18) is fixedly connected to the lower end of the transmission rod (17). A hydraulic cylinder (20) is fixedly connected to the lower surface of the connecting plate (19). A hydraulic push rod (15) is fixedly connected to the output end of the hydraulic cylinder (20). The other end of the hydraulic push rod (15) is fixedly connected to a clamping plate (16).

2. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, A servo motor (14) is fixedly connected to the outer surface of the bracket (12). The output end of the servo motor (14) extends into the interior of the bracket (12). The transmission wheel (21) is driven by the servo motor (14).

3. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, The fixing plate (1) is provided with a socket (9), and the bidirectional lead screw (2) is rotatably connected inside the socket (9).

4. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, The sliders (3) on both sides are symmetrically designed, and the clamping plate one (16) and clamping plate two (18) are also symmetrically designed.

5. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, Both ends of the transmission wheel 2 (21) are provided with limit plates (10), and the clamping plate 1 (16) is located above the clamping plate 2 (18).

6. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, The workbench (22) is located above the base plate (6), and the workbench (22) is made of stainless steel.

7. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, Both the first clamp (16) and the second clamp (18) are provided with soft plates, and the soft plates are made of rubber.

8. The auxiliary clamping mechanism for biaxial stretching of filter membranes according to claim 1, characterized in that, The lower surface of the base plate (6) is fixedly connected to a support leg (7), and the lower surface of the support leg (7) is fixedly connected to a rubber plate (8).

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