Device for adjusting clamping degree of rubber roller on line

Abstract

The utility model provides a device for adjusting the clamping degree of a rubber roller on line, which belongs to the technical field of pressing equipment and comprises a pressing component and an adjusting system. The pressing assembly comprises a servo roller and a rubber roller which are arranged on the rack at intervals from top to bottom; the adjusting system comprises two sets of lifting execution pieces connected with the two ends of the rubber roller respectively, proportional valves arranged on the lifting execution pieces and pressure sensors connected with the servo roller. The lifting execution piece longitudinally stretches out and draws back through the proportional valve to drive the rubber roller to be close to or away from the servo roller. According to the device for adjusting the clamping degree of the rubber roller on line, the pressure sensor is installed on the servo roller, and the pressure sensor collects the pressing force applied to the pole piece and the servo roller by the rubber roller; the control system adjusts the lifting amplitude of the lifting execution part by controlling the opening degree of the proportional valve, and the purpose of changing the pressing force between the rubber roller and the servo roller is achieved by driving the rubber roller to ascend and descend through the lifting execution part.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressing equipment, and more specifically relates to a device for adjusting the clamping degree of a rubber roller online. Background Art

[0002] The tension control requirements and the flatness requirements of the pole pieces in the production process are getting higher and higher. Therefore, in the process of winding and unwinding the pole pieces, the pressing force detection of the pressing mechanism is particularly important. The pressing mechanism includes a servo roller and a rubber roller arranged on the frame at longitudinal intervals. The servo roller is connected to the servo motor; the rubber roller presses the pole plate to the lower end of the servo roller. The pressing force of the rubber roller should not be too large or too small. If it is too large, it will squeeze the pole piece and wrinkle it, causing it to be scrapped. If it is too small, the servo roller will easily slip, causing unstable tension and speed.

[0003] Online adjustment of the pressing force of the rubber roller clamping the servo roller is an effective measure to solve the unstable tension and speed. However, the current pressing force adjustment of the rubber roller generally adopts manual adjustment of the gap after stopping the machine, and then visually observes whether the servo roller and the pole piece are slipping, or even twists the rubber roller by hand to detect whether the rubber roller is clamped. These technologies have the following defects:

[0004] 1. Manual detection and adjustment are inaccurate and the precision is low.

[0005] 2. When the tension and speed change, the machine needs to be stopped and readjusted, which results in low efficiency and poor adaptability.

[0006] 3. Manual detection and adjustment takes a long time and cannot achieve quick response.

[0007] 4. After manually detecting that the rubber roller is not clamped, there is a lag in taking measures to improve the clamping degree. From the discovery of the clamping imbalance to the shutdown for processing, some pole pieces will be produced in the middle, which may cause product defects. Utility Model Content

[0008] The utility model aims to provide a device for adjusting the clamping degree of a rubber roller on-line, aiming to solve the problem of low precision in manual detection and adjustment of the rubber roller.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a device for adjusting the clamping degree of the rubber roller online, comprising:

[0010] A pressing assembly comprises a servo roller and a rubber roller which are arranged on the frame from top to bottom at intervals;

[0011] The regulating system includes two sets of lifting actuators respectively connected to the two ends of the rubber roller, a proportional valve arranged on the lifting actuator, and a pressure sensor connected to the servo roller; the lifting actuator is longitudinally extended and retracted with the help of the proportional valve to drive the rubber roller to approach or move away from the servo roller.

[0012] As another embodiment of the present application, the lifting actuator is a pneumatic drive element, and correspondingly, the proportional valve is an electric proportional valve.

[0013] As another embodiment of the present application, the adjustment system further includes a guide frame, which is longitudinally movable on the frame and cooperates with the rubber roller for rotation; the action end of the lifting actuator is connected to the guide frame.

[0014] As another embodiment of the present application, the guide frame includes:

[0015] A guide rail, the guide rail is arranged on the frame along the longitudinal direction;

[0016] A guide block, wherein the guide block is slidably disposed on the guide rail and is rotationally connected to the central axis of the rubber roller;

[0017] The action end of the lifting actuator is connected to the lower end of the guide block and drives the guide block to move up and down along the guide rail.

[0018] As another embodiment of the present application, the guide frame includes:

[0019] A U-shaped groove frame, the U-shaped groove frame is arranged on the frame for longitudinal movement; the U-shaped groove frame is connected to the action end of the lifting actuator;

[0020] A positioning support roller group, wherein the positioning support roller group is distributed in the inner cavity of the groove frame, the positioning support roller group is in an arc shape with an opening and an arc angle greater than 180°; the positioning support roller group includes a plurality of positioning support rollers arranged at equal intervals; the plurality of positioning support rollers are all rotatably coordinated with the rubber roller.

[0021] As another embodiment of the present application, there are multiple lifting actuators, and the multiple lifting actuators are arranged in a row at the bottom of the frame; the action ends of the multiple lifting actuators are all connected to the lower end surface of the U-shaped channel frame.

[0022] As another embodiment of the present application, the adjustment system further includes:

[0023] The fine-tuning component comprises a fixed part and a movable part; the fixed part is arranged at the action end of the lifting actuator; the movable part is movably connected to the fixed part, and the movable part has a degree of freedom along the longitudinal direction; the rubber roller is connected to the movable part.

[0024] As another embodiment of the present application, the fixing member is a plate-like structure rotatably connected to the frame; the upper end of the fixing member is provided with a rotation groove opening upward, and the rotation groove is used to limit the central axis of the rubber roller;

[0025] The movable part comprises a wedge iron, which is laterally movable and arranged on one side of the fixed part, and the thickness of the wedge iron gradually decreases along the length direction; the upper end of the wedge iron is in contact with the central axis of the rubber roller extending out of the rotating groove.

[0026] As another embodiment of the present application, the movable member further includes:

[0027] A guide plate, the guide plate is rotatably connected to the fixing member, and the guide plate is located between the wedge and the central axis of the rubber roller;

[0028] A limiting wheel is arranged at the middle part of the fixing member and is attached to the lower end surface of the wedge.

[0029] As another embodiment of the present application, a clamping member is provided at the upper end of the lifting actuator, and a clamping groove with an upward opening is provided at the upper end of the clamping member, and the clamping groove is adapted to the lower end of the fixing member.

[0030] The beneficial effects of the device for adjusting the clamping degree of the rubber roller online provided by the utility model are as follows: compared with the prior art, the device for adjusting the clamping degree of the rubber roller online provided by the utility model uses a pressure sensor installed on the servo roller, and the pressure sensor collects the pressing force applied by the rubber roller to the pole piece and the servo roller; the control system adjusts the lifting amplitude of the lifting actuator by controlling the opening degree of the proportional valve, and drives the rubber roller to rise and fall through the lifting actuator to achieve the purpose of changing the pressing force between the rubber roller and the servo roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a device for adjusting the clamping degree of a rubber roller online provided in the first embodiment of the utility model;

[0033] Figure 2 A schematic diagram of the structure of a device for adjusting the clamping degree of a rubber roller online provided in a second embodiment of the utility model;

[0034] Figure 3 This is a schematic structural diagram of a device for online adjusting the clamping degree of a rubber roller provided in a third embodiment of the utility model.

[0035] In the figure: 1. servo roller; 2. rubber roller; 3. pressure sensor; 4. cylinder; 5. electric proportional valve; 6. guide rail; 7. guide block; 8. protective cover; 9. positioning support roller; 10. U-shaped groove frame; 11. fixing part; 12. fixed shaft; 13. limiting wheel; 14. wedge; 15. guide plate; 16. clamping part. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] See also Figures 1 to 3 The device for adjusting the clamping degree of the rubber roller online provided by the utility model is now described. The device for adjusting the clamping degree of the rubber roller online comprises a pressing assembly and an adjustment system; the pressing assembly comprises a servo roller 1 and a rubber roller 2 arranged on a frame from top to bottom; the adjustment system comprises two sets of lifting actuators respectively connected to the two ends of the rubber roller 2, a proportional valve arranged on the lifting actuator, and a pressure sensor 3 connected to the servo roller 1; the lifting actuator is longitudinally extended and retracted by means of the proportional valve to drive the rubber roller 2 to approach or move away from the servo roller 1.

[0038] Compared with the prior art, the device for adjusting the clamping degree of the rubber roller online provided by the utility model uses a pressure sensor 3 installed on the servo roller 1, and the pressure sensor 3 collects the pressing force applied by the rubber roller 2 to the pole piece and the servo roller 1; the control system adjusts the lifting amplitude of the lifting actuator by controlling the opening degree of the proportional valve, and drives the rubber roller 2 to rise and fall through the lifting actuator to achieve the purpose of changing the pressing force between the rubber roller 2 and the servo roller 1.

[0039] The driving motor is mounted on the frame and connected to the central axis of the servo roller 1 .

[0040] The regulating system may adopt a pneumatic control system or a hydraulic control system. Taking the pneumatic control system as an example, the lifting actuator is a pneumatic drive component, such as a cylinder 4; correspondingly, the proportional valve is an electric proportional valve 5.

[0041] Specifically, cylinders 4 are installed at both ends of the frame, and the two cylinders 4 are connected to the two ends of the rubber roller 2 respectively; the cylinders 4 are connected to the air source by means of an electrical proportional valve 5. The electrical proportional valve 5 drives the cylinders 4 to extend and retract to drive the rubber roller 2 to move up and down, thereby adjusting the pressing force between the rubber roller 2 and the servo roller 1. There are two pressure sensors 3, and the two pressure sensors 3 are respectively arranged at the two ends of the servo roller 1.

[0042] The adjustment system also includes a guide frame, which is longitudinally movable on the frame and rotates with the rubber roller 2; the action end of the lifting actuator is connected to the guide frame. The guide frame is connected to the frame and the rubber roller 2, and is used to limit the moving direction of the rubber roller 2 to prevent the rubber roller 2 from deflecting.

[0043] The action end of the lifting actuator is connected to the guide frame and is used to drive the guide frame to drive the rubber roller 2 to move up and down.

[0044] In the first embodiment, if Figure 1 As shown, the guide frame includes a guide rail 6 and a guide block 7, the guide rail 6 is arranged on the frame along the longitudinal direction; the guide block 7 is slidably arranged on the guide rail 6, and the guide block 7 is rotatably connected to the central axis of the rubber roller 2; the action end of the lifting actuator is connected to the lower end of the guide block 7 and drives the guide block 7 to move up and down along the guide rail 6.

[0045] The upper end of the guide block 7 is connected to the central axis of the rubber roller 2, and the lower end of the guide block 7 is connected to the action end of the cylinder 4. When the cylinder 4 extends, the guide block 7 is pushed to slide upward along the guide rail 6; when the cylinder 4 shortens, the guide block 7 is pushed to slide downward along the guide rail 6.

[0046] The guide block 7 comprises a bottom plate and a fixing plate longitudinally arranged on the bottom plate, and a horizontal mounting hole is provided on the fixing plate. The central axis of the rubber roller 2 passes through the mounting hole and is rotatably connected to the mounting hole by means of a bearing.

[0047] Optionally, the action end of the lifting actuator is directly connected to the central axis of the rubber roller 2 , and the end of the central axis of the rubber roller 2 is connected to the guide block 7 .

[0048] In the second embodiment, if Figure 2 As shown, the guide frame includes a U-shaped slot frame 10 and a positioning support roller group; the U-shaped slot frame 10 is arranged on the frame for longitudinal movement; the U-shaped slot frame 10 is connected to the action end of the lifting actuator; the positioning support roller group is distributed in the inner cavity of the slot frame, and the positioning support roller group is in an arc shape with an opening and an arc angle greater than 180°; the positioning support roller group includes a plurality of positioning support rollers 9 arranged at equal intervals; and the plurality of positioning support rollers 9 are all rotatably matched with the rubber roller 2. Optionally, 7 positioning support rollers 9 are installed in the U-shaped slot frame 10, and the axes of the 7 positioning support rollers 9 form a 219° semi-enclosed arc with respect to the rubber roller 2. The 7 positioning support rollers form a positioning support roller group to provide stable fixation and balanced support for the rubber roller 2.

[0049] The U-shaped channel frame 10 is located inside the frame, and the open end of the U-shaped channel frame 10 faces upward. The lifting actuator is installed on the base of the frame, and its action end extends to the lower end of the U-shaped channel frame 10 and is connected to the U-shaped channel frame 10.

[0050] Rotatable limit balls are arranged on both sides of the U-shaped channel frame 10, and the limit balls are against the frame and slidably connected with the frame. When the lifting actuator drives the U-shaped channel frame 10 to rise and fall, the limit balls slide with the frame and limit the sliding direction of the U-shaped channel frame 10. Optionally, a slide groove is provided on the side wall of the frame, and the limit balls slide with the bottom of the slide groove.

[0051] There are multiple lifting actuators, which are arranged in a row at the bottom of the frame; the action ends of the multiple lifting actuators are connected to the lower end surface of the U-shaped channel frame 10. Specifically, multiple cylinders 4 are arranged on the base of the frame, and the multiple cylinders 4 are connected to the lower end of the U-shaped channel frame 10 at intervals along the axial direction of the rubber roller 2. Optionally, the multiple cylinders 4 are arranged in multiple rows, with equal spacing between each row; each row has multiple cylinders 4 arranged along the axial direction of the rubber roller 2.

[0052] In the second embodiment, a protective cover 8 is provided on the periphery of the U-shaped trough frame 10, and a through hole is provided at the upper end of the protective cover 8 to allow the rubber roller 2 to pass through. The edge of the through hole of the protective cover 8 is close to the rubber roller 2, reducing the gap between the rubber roller 2 and the protective cover 8 to prevent the material strip from breaking after exiting the rubber roller 2, causing the material strip to be rolled up between the positioning support roller 9 and the rubber roller 2, causing equipment abnormalities and problems that are difficult to clean.

[0053] In some possible embodiments, see Figure 3 The adjustment system also includes a fine-tuning component, which includes a fixed part 11 and a movable part; the fixed part 11 is arranged at the action end of the lifting actuator; the movable part is movably connected to the fixed part 11, and the movable part has a longitudinal degree of freedom; the rubber roller 2 is connected to the movable part.

[0054] The fixing part 11 of the fine adjustment assembly is connected to the cylinder 4. The movable part of the fine adjustment assembly is connected to the fixing part 11 and moves relatively, and the movable part has a degree of freedom in the longitudinal direction. When the cylinder 4 stops lifting, the movable part lifts in the longitudinal direction to achieve the fine adjustment function.

[0055] Specifically, the fixing member 11 is a plate-like structure rotatably connected to the frame by means of a fixing shaft 12; a rotation groove opening upward is provided at the upper end of the fixing member 11, and the rotation groove is used to limit the central axis of the rubber roller 2;

[0056] The movable part includes a wedge 14, which is laterally movable and arranged on one side of the fixed part 11. The thickness of the wedge 14 gradually decreases along the length direction. The upper end of the wedge 14 is in contact with the central axis of the rubber roller 2 extending out of the rotating groove.

[0057] The fixing member 11 is a plate-like structure, one end of which is rotatably connected to the frame, the lower end of the fixing member 11 is connected to the cylinder 4, and the upper end of the fixing member 11 is provided with a rotation groove with the notch facing upward; the depth of the rotation groove is greater than the radius of the rubber roller 2. When the wedge 14 moves in the lateral direction, its upper end surface is attached to the rubber roller 2 and drives the rubber roller 2 to rise and fall as its own thickness changes.

[0058] The end of the wedge 14 is connected with a driving device, which can be a servo motor. The driving device is fixedly mounted on the fixing member 11. Optionally, the side of the wedge 14 close to the fixing member 11 is slidably connected to the fixing member 11.

[0059] In addition, the movable part also includes a guide plate 15 and a limiting wheel 13; the guide plate 15 is rotatably connected to the fixed part 11, and the guide plate 15 is located between the wedge 14 and the central axis of the rubber roller 2; the limiting wheel 13 is arranged in the middle of the fixed part 11 and fits the lower end surface of the wedge 14.

[0060] The guide plate 15 is arranged on the upper part of the fixing member 11, and one end of the guide plate 15 is rotatably connected to the fixing plate. The guide plate 15 extends horizontally. The upper end of the wedge iron 14 is slidably connected to the guide plate 15, and the lower end of the wedge iron 14 is an inclined surface, and the lower end surface of the wedge iron 14 is attached to the upper end of the limiting wheel 13.

[0061] The limiting wheel 13 is fixed, and when the key iron 14 moves laterally, the guide plate 15 connected to the key iron 14 rotates around the hinge axis with the fixed plate. During the rotation of the guide plate 15, the central axis of the rubber roller 2 at its upper end moves up and down along the groove depth direction of the rotating groove.

[0062] In some possible embodiments, see Figure 3 The upper end of the lifting actuator is provided with a clamping member 16, and the upper end of the clamping member 16 is provided with a clamping groove with an opening facing upward, and the clamping groove is adapted to the lower end of the fixing member 11. Specifically, the clamping member 16 is U-shaped, and the opening of the clamping groove provided at the upper end of the clamping member 16 faces upward. The width of the clamping groove is adapted to the thickness of the fixing member 11. The lower part of the fixing member 11 is limited in the clamping groove, but is not fixed to the groove wall of the clamping groove.

[0063] Optionally, when the guide assembly cooperates with the fine-tuning assembly, the fixing part 11 is fixed to the guide frame, and the movable part is connected to the rubber roller. If the guide frame is a combination of a guide rail 6 and a guide block 7, the fixing part 11 is installed on a fixing plate on the guide block 7. If the guide frame is a U-shaped channel frame 10 and a positioning support roller group, the fixing part 11 is connected to the frame, the movable part is connected to the U-shaped channel frame 10, the fixing part 11 is connected to the cylinder 4, and the wedge 14 on the fixing part 11 moves to drive the U-shaped channel frame 10 to move up and down as a whole.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for adjusting the clamping degree of the rubber roller online, characterized in that: include: The pressing assembly comprises a servo roller (1) and a rubber roller (2) which are arranged on the frame at intervals from top to bottom; The regulating system comprises two sets of lifting actuators respectively connected to the two ends of the rubber roller (2), a proportional valve arranged on the lifting actuator, and a pressure sensor (3) connected to the servo roller (1); the lifting actuator is longitudinally extended and retracted with the help of the proportional valve to drive the rubber roller (2) to approach or move away from the servo roller (1).

2. The device for adjusting the clamping degree of the rubber roller online according to claim 1, characterized in that: The lifting actuator is a pneumatic drive component, and correspondingly, the proportional valve is an electric proportional valve (5).

3. The device for adjusting the clamping degree of the rubber roller online according to claim 1, characterized in that: The adjustment system also includes a guide frame, which is longitudinally movable on the frame and rotatably cooperates with the rubber roller (2); the action end of the lifting actuator is connected to the guide frame.

4. The device for adjusting the clamping degree of the rubber roller online as claimed in claim 3, characterized in that: The guide frame comprises: A guide rail (6), wherein the guide rail (6) is arranged on the frame along the longitudinal direction; A guide block (7), wherein the guide block (7) is slidably disposed on the guide rail (6), and the guide block (7) is rotationally connected to the central axis of the rubber roller (2); The action end of the lifting actuator is connected to the lower end of the guide block (7) and drives the guide block (7) to move up and down along the guide rail (6).

5. The device for adjusting the clamping degree of the rubber roller online as claimed in claim 3, characterized in that: The guide frame comprises: A U-shaped channel frame (10), the U-shaped channel frame (10) is arranged on the frame in a longitudinally movable manner; the U-shaped channel frame (10) is connected to the action end of the lifting actuator; A positioning support roller group, wherein the positioning support roller group is distributed in the inner cavity of the groove frame, the positioning support roller group is in an arc shape with an opening and an arc angle greater than 180°; the positioning support roller group comprises a plurality of positioning support rollers (9) arranged at equal intervals; the plurality of positioning support rollers (9) are all rotatably matched with the rubber roller (2).

6. The device for adjusting the clamping degree of the rubber roller online as claimed in claim 5, characterized in that: There are a plurality of lifting actuators, which are arranged in a row at the bottom of the frame; the action ends of the plurality of lifting actuators are all connected to the lower end surface of the U-shaped channel frame (10).

7. The device for adjusting the clamping degree of the rubber roller online according to claim 1, characterized in that: The regulating system also includes: The fine adjustment component comprises a fixed part (11) and a movable part; the fixed part (11) is arranged at the action end of the lifting actuator; the movable part is movably connected to the fixed part (11), and the movable part has a degree of freedom in the longitudinal direction; the rubber roller (2) is connected to the movable part.

8. The device for adjusting the clamping degree of the rubber roller online according to claim 7, characterized in that: The fixing member (11) is a plate-shaped structure rotatably connected to the frame; the upper end of the fixing member (11) is provided with a rotation groove opening upward, and the rotation groove is used to limit the central axis of the rubber roller (2); The movable part comprises a wedge iron (14), which is laterally movable and arranged on one side of the fixed part (11), and the thickness of the wedge iron (14) gradually decreases along the length direction; the upper end of the wedge iron (14) is in contact with the central axis of the rubber roller (2) extending out of the rotating groove.

9. The device for adjusting the clamping degree of the rubber roller online as claimed in claim 8, characterized in that: The movable part also includes: A guide plate (15), the guide plate (15) being rotatably connected to the fixing member (11), the guide plate (15) being located between the wedge (14) and the central axis of the rubber roller (2); A limiting wheel (13), wherein the limiting wheel (13) is arranged in the middle of the fixing member (11) and is attached to the lower end surface of the wedge (14).

10. The device for adjusting the clamping degree of the rubber roller online according to claim 8, characterized in that: A clamping piece (16) is provided at the upper end of the lifting actuator, and a clamping groove with an upward opening is provided at the upper end of the clamping piece (16), and the clamping groove is matched with the lower end of the fixing piece (11).

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