Plastic film winding device with automatic deviation rectifying function

Abstract

The utility model belongs to the technical field of plastic films, and particularly relates to a plastic film winding device with an automatic deviation rectifying function, which comprises a frame, a winding mechanism is arranged on the upper surface of the frame, the winding mechanism comprises a winding roller, and the winding roller rotates to wind a film. The relative distance between the two compression rollers is adjusted, telescopic rods of the electric push rods stretch out and draw back to drive the sliding blocks to ascend and descend, one compression roller is rotationally connected with the sliding blocks through bearings, lifting of the sliding blocks drives the compression rollers to ascend and descend synchronously, and the other compression roller is rotationally connected with the frame through bearings, so that the rotation stability of the compression rollers is guaranteed; the relative distance between the sliding block and the pressing roller rotationally connected to the frame can be adjusted through lifting of the pressing roller on the sliding block, and therefore the film pressing device adapts to films of different thicknesses.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic film technical field especially relates to a plastic film winding device with automatic deviation rectifying function. BACKGROUND

[0002] Plastic film is an indispensable material in modern industry, and is widely used in food packaging, medicine, chemical industry, agriculture and building fields, in its production process, the film needs to be arranged and wound through the winding device to ensure the flatness and integrity during subsequent use.

[0003] In the prior art, during the winding process, the film deviates from the predetermined track due to uneven tension and thickness difference, which finally leads to irregular winding of the film, and wrinkles or loose phenomenon occurs, affecting the product quality, and different thickness or material of the film has different requirements for the tension, and the fixed distance between the guide rollers will cause the film to be unable to maintain uniform tension during the transmission process, thereby affecting the precision of the subsequent process, therefore, the plastic film winding device with automatic deviation rectifying function is proposed to solve the above problems. SUMMARY

[0004] In order to solve the technical problems that in the prior art, during the winding process, the film deviates from the predetermined track due to uneven tension and thickness difference, which finally leads to irregular winding of the film, and different thickness or material of the film has different requirements for the tension, and the fixed distance between the guide rollers will cause the film to be unable to maintain uniform tension during the transmission process, the present application provides a plastic film winding device with automatic deviation rectifying function.

[0005] The utility model provides a plastic film winding device with automatic deviation rectifying function, including the frame, the upper surface of frame is provided with winding mechanism, the winding mechanism includes winding roller, the rotation of winding roller carries out winding to the film.

[0006] The upper surface of the frame is provided with an adjusting mechanism, the adjusting mechanism includes two compression rollers, the lifting of one compression roller is used for adjusting the relative distance between the other compression roller.

[0007] Preferably, the winding mechanism further includes a moving motor, the moving motor is fixedly installed on the rear end surface of the frame, and the output shaft of the moving motor is rotatably connected with the rear end groove of the frame through a bearing.

[0008] Through the above technical scheme, the moving motor and the frame are fixedly installed, the output shaft of the moving motor is rotatably connected with the frame through a bearing, the stability of the rotation of the output shaft of the moving motor is ensured, the model of the moving motor can be selected from Panasonic MSMD series servo motor, and Panasonic A5 driver and encoder are equipped to realize accurate control.

[0009] Preferably, the output shaft of the moving motor is fixedly installed with a bidirectional screw rod, which is rotatably connected to the inner side wall of the front end of the frame through a bearing.

[0010] Through the above technical scheme, the output shaft of the moving motor is fixedly installed with the bidirectional screw rod, which is rotatably connected to the inner side wall of the front end of the frame through a bearing.

[0011] Preferably, the outer surface of the bidirectional screw rod is threadedly connected with a support frame, the inner bottom wall of the frame is fixedly installed with a guide rail through bolts, and the lower surface of the support frame is rollingly connected with the track of the guide rail through a ball sliding block.

[0012] Through the above technical scheme, the bidirectional screw rod is threadedly connected with the support frame, which is driven to rotate and move, but is limited by the ball sliding block and the track of the guide rail, so that it only moves, and the frame and the guide rail are fixedly installed, so that the guide rail is fixed, and the material of the guide rail can be quenched steel, which can withstand the weight of the support frame and the impact during movement, and can maintain accurate guiding function for a long time, reduce the positioning accuracy caused by guide rail wear, and ensure the long-term stable operation of the ball sliding block under high speed and high load, maintain low friction and accurate guiding, prolong the service life of the sliding block, and the material of the support frame can be aluminum alloy, which can significantly reduce the weight of the component under the premise of ensuring sufficient strength and rigidity.

[0013] Preferably, the rear end surface of the support frame is fixedly installed with a winding motor, the output shaft of the winding motor is fixedly installed with one end of the winding roller, the winding roller is rotatably connected to the inner side wall of the front end of the support frame through a bearing, and the lower surface of the cross beam of the frame is fixedly installed with a camera.

[0014] Through the above technical scheme, the support frame is fixedly installed with the winding motor, which is driven to move synchronously, the output shaft of the winding motor is fixedly installed with the winding roller, which is driven to rotate to wind the film, the winding roller is rotatably connected to the support frame through a bearing, which ensures the stability of the rotation of the winding roller, the winding roller is composed of a roller shaft and two disc plates fixedly installed on both sides of the roller shaft through bolts, the rear disc plate is fixedly installed with the output shaft of the winding motor, and the front disc plate is rotatably connected to the support frame through a bearing, and the roller shaft can be subsequently disassembled to remove the wound film, the model of the winding motor is also Panasonic MSMD series servo motor, which is equipped with Panasonic A5 driver and encoder, the frame is fixedly installed with the camera, which is fixed, the camera can be a linear array camera, and is equipped with a vision processor, which can realize high-speed and accurate edge detection and provide reliable data basis for automatic deviation correction.

[0015] Preferably, the adjusting mechanism further comprises an electric push rod, the electric push rod is fixedly installed on the left side upper surface of the frame, and the telescopic rod of the electric push rod is fixedly installed with a sliding block which is slidingly connected in the left side groove of the frame.

[0016] Through the above technical scheme, the electric push rod is fixedly installed with the frame, the telescopic rod of the electric push rod is fixedly installed with the sliding block, the telescopic rod of the electric push rod drives the sliding block to ascend and descend, the sliding block is slidingly connected with the frame, the stability of the ascending and descending of the sliding block is ensured, the model of the electric push rod can adopt the German Nord electric push rod, and a position feedback sensor is arranged, the material of the sliding block can adopt aluminum alloy, the weight of the moving part can be reduced, the load of the electric push rod is reduced, the response speed is improved, and the energy consumption is reduced.

[0017] Preferably, one of the compression rollers is rotatably connected in the outer groove of the sliding block through a bearing, and the other compression roller is rotatably connected with the left inner wall of the frame through a bearing.

[0018] Through the above technical scheme, one compression roller is rotatably connected with the sliding block through a bearing, the ascending and descending of the sliding block drives the synchronous ascending and descending of the compression roller, the other compression roller is rotatably connected with the frame through a bearing, the stability of the rotation of the compression roller is ensured, the relative distance between the compression roller rotatably connected with the frame and the compression roller rotatably connected with the sliding block can be adjusted through the ascending and descending of the compression roller on the sliding block, so that the film of different thicknesses can be adapted, and the material of the compression roller can adopt carbon steel plated with chromium on the surface, and can be wrapped with elastic materials such as polyurethane according to the needs, so as to reduce the damage to the film.

[0019] The beneficial effects in the utility model are as follows:

[0020] 1. The winding mechanism is arranged to wind the film, the bidirectional screw is driven to rotate by the moving motor, the bidirectional screw is in threaded connection with the support frame, and the support frame is driven to rotate and move, but the support frame is limited by the rolling connection of the ball sliding block and the track of the guide rail, so that the support frame only moves, the support frame is fixedly installed with the winding motor, the winding motor drives the winding roller to rotate, the film is wound, the camera can adopt a linear array camera, and a vision processor is arranged, so that high-speed and accurate edge detection can be realized, reliable data basis is provided for automatic deviation correction, and the technical problem that the film deviates from the predetermined track due to uneven tension and thickness difference in the winding process in the prior art, finally leads to irregular winding of the film, wrinkles or loose phenomenon, and affects product quality is solved.

[0021] 2、By setting adjustment mechanism, the relative distance between the two compression rollers is adjusted, the extension of the electric push rod telescopic rod drives the slider to rise and fall, one compression roller is rotatably connected with the slider through a bearing, the lifting of the slider drives its synchronous lifting, the other compression roller is rotatably connected with the frame through a bearing, the stability of the compression roller rotation is ensured, the relative distance between the compression roller rotatably connected on the frame and the compression roller on the slider can be adjusted through the lifting of the compression roller on the slider, so that different thickness films can be adapted, and the technical problem that the uniform tension of the film cannot be maintained in the transmission process due to the fixed distance between the guide rollers, thereby affecting the precision of the subsequent process, is solved in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A schematic view of a plastic film winding device with automatic deviation correction function is provided for the utility model.

[0023] Figure 2 A perspective view of a camera structure of a plastic film winding device with automatic deviation correction function is provided for the utility model.

[0024] Figure 3 A perspective view of a guide rail structure of a plastic film winding device with automatic deviation correction function is provided for the utility model.

[0025] Figure 4 A perspective view of a winding motor structure of a plastic film winding device with automatic deviation correction function is provided for the utility model.

[0026] Figure 5 A perspective view of a winding roller structure of a plastic film winding device with automatic deviation correction function is provided for the utility model.

[0027] In the figure: 1, frame; 2, moving motor; 3, bidirectional screw; 4, support frame; 41, guide rail; 5, winding motor; 51, winding roller; 52, camera; 6, electric push rod; 61, slider; 7, compression roller. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0029] REFERENCE Figures 1-5 A plastic film winding device with automatic deviation correction function, comprising a frame 1, the upper surface of the frame 1 is provided with a winding mechanism, the winding mechanism comprises a winding roller 51, the rotation of the winding roller 51 winds the film.

[0030] In order to ensure the stability of the rotation of the output shaft of the moving motor 2, the winding mechanism further comprises a moving motor 2 fixedly installed on the rear end surface of the frame 1, and the output shaft of the moving motor 2 is rotatably connected with the rear end groove of the frame 1 through a bearing. The moving motor 2 is fixedly installed on the frame 1, and the output shaft of the moving motor 2 is rotatably connected with the frame 1 through a bearing, so as to ensure the stability of the rotation of the output shaft of the moving motor 2. The model of the moving motor 2 can be selected from Panasonic MSMD series servo motor, and Panasonic A5 driver and encoder are provided to realize accurate control.

[0031] In order to drive the rotation of the bidirectional screw 3, the output shaft of the moving motor 2 is fixedly installed with the bidirectional screw 3, and the bidirectional screw 3 is rotatably connected with the front end inner side wall of the frame 1 through a bearing. The output shaft of the moving motor 2 is fixedly installed with the bidirectional screw 3, and the bidirectional screw 3 is rotatably connected with the frame 1 through a bearing, so as to ensure the stability of the rotation of the bidirectional screw 3. The materials of the frame 1 and the bidirectional screw 3 can be high-strength alloy steel, which can withstand repeated stress cycles and is not easy to break.

[0032] In order to drive the rotation and movement of the support frame 4, the outer surface of the bidirectional screw 3 is threadedly connected with the support frame 4, the inner bottom wall of the frame 1 is fixedly installed with a guide rail 41 through bolts, and the lower surface of the support frame 4 is rollingly connected with the track of the guide rail 41 through a ball sliding block 61. The bidirectional screw 3 is threadedly connected with the support frame 4 to drive the rotation and movement of the support frame 4. However, the support frame 4 is limited by the rolling connection of the ball sliding block 61 with the track of the guide rail 41, so that it only moves. The frame 1 and the guide rail 41 are fixedly installed, and the material of the guide rail 41 can be hardened steel, which can withstand the weight of the support frame 4 and the impact in movement, maintain accurate guiding function for a long time, reduce the positioning accuracy caused by the wear of the guide rail 41, the ball inside the sliding block 61 is made of bearing steel, which can ensure the long-term stable operation of the ball sliding block 61 under high speed and high load, maintain low friction and accurate guiding, prolong the service life of the sliding block 61, and the material of the support frame 4 can be aluminum alloy, which can significantly reduce the weight of the component under the premise of ensuring sufficient strength and rigidity.

[0033] In order to drive the winding roller 51 to rotate, the rear end surface of the support frame 4 is fixedly provided with a winding motor 5, the output shaft of the winding motor 5 is fixedly provided with one end of the winding roller 51, the winding roller 51 is rotatably connected to the inner side wall of the front end of the support frame 4 through a bearing, the lower surface of the crossbeam of the frame 1 is fixedly provided with a camera 52, the camera 52 is fixedly provided with the support frame 4 and the winding motor 5, and the camera 52 is driven to move synchronously, the output shaft of the winding motor 5 is fixedly provided with the winding roller 51, the winding roller 51 is driven to rotate, and the film is wound. The winding roller 51 is rotatably connected to the support frame 4 through a bearing, the stability of the winding roller 51 is ensured, the winding roller 51 is composed of a roller shaft and two disc-shaped plates fixedly provided with the roller shaft through bolts, the disc-shaped plate at the rear end is fixedly provided with the output shaft of the winding motor 5, the disc-shaped plate at the front end is rotatably connected to the support frame 4 through a bearing, and the roller shaft is subsequently disassembled, and the wound film is removed. The model of the winding motor 5 is also a Panasonic MSMD series servo motor, and is provided with a Panasonic A5 driver and an encoder. The camera 52 is fixedly provided with the frame 1, the camera 52 is fixed, the camera 52 can adopt a linear array camera, and is provided with a vision processor, high-speed and accurate edge detection can be realized, and reliable data basis for automatic deviation correction is provided.

[0034] The winding mechanism is provided, the film is wound, the bidirectional screw rod 3 is driven to rotate by the moving motor 2, the bidirectional screw rod 3 is threadedly connected with the support frame 4, the support frame 4 is driven to rotate and move, but the support frame 4 is limited to move only by being rotatably connected with the track of the guide rail 41 through the ball sliding block 61, the support frame 4 is fixedly provided with the winding motor 5, the winding motor 5 drives the winding roller 51 to rotate, the film is wound, the camera 52 can adopt a linear array camera and is provided with a vision processor, high-speed and accurate edge detection can be realized, and the reliable data basis for automatic deviation correction is provided. The technical problem that the film deviates from the predetermined track due to uneven tension and thickness difference during the winding process in the prior art, finally leads to irregular winding of the film, wrinkles or loose phenomenon, and affects the product quality is solved.

[0035] In order to adjust the relative distance between one compression roller 7 and another compression roller 7, the upper surface of the frame 1 is provided with an adjusting mechanism, the adjusting mechanism comprises two compression rollers 7, and the lifting of one compression roller 7 is used for adjusting the relative distance between the one compression roller 7 and the other compression roller 7.

[0036] In order to ensure the stability of the slider 61 lifting, the adjusting mechanism further comprises an electric push rod 6, which is fixedly installed on the left upper surface of the frame 1, and the telescopic rod of the electric push rod 6 is fixedly installed with the slider 61, which is slidingly connected in the left groove of the frame 1. Through the fixed installation of the electric push rod 6 and the frame 1, the fixed installation of the telescopic rod of the electric push rod 6 and the slider 61, the extension and contraction of the telescopic rod drive the slider 61 to lift, and through the sliding connection of the slider 61 and the frame 1, the stability of the lifting is ensured. The model of the electric push rod 6 can adopt the German Nord electric push rod 6, and is equipped with a position feedback sensor. The material of the slider 61 can adopt aluminum alloy, which can reduce the weight of the moving parts, reduce the load of the electric push rod 6, improve the response speed, and reduce the energy consumption.

[0037] In order to ensure the stability of the rotation of the pressure roller 7, one pressure roller 7 is rotatably connected in the outer groove of the slider 61 through a bearing, and the other pressure roller 7 is rotatably connected to the left inner wall of the frame 1 through a bearing. One pressure roller 7 is rotatably connected with the slider 61 through a bearing, and the lifting of the slider 61 drives the synchronous lifting of the pressure roller 7. The other pressure roller 7 is rotatably connected with the frame 1 through a bearing, which ensures the stability of the rotation of the pressure roller 7. The lifting of the pressure roller 7 on the slider 61 can adjust the relative distance between the pressure roller 7 and the pressure roller 7 rotatably connected to the frame 1, so as to adapt to different thicknesses of the film. The material of the pressure roller 7 can adopt carbon steel with chrome-plated surface, and can be wrapped with elastic materials such as polyurethane according to needs, so as to reduce the damage to the film.

[0038] By setting the adjusting mechanism, the relative distance between the two pressure rollers 7 is adjusted, the telescopic rod of the electric push rod 6 drives the slider 61 to lift, one pressure roller 7 is rotatably connected with the slider 61 through a bearing, the lifting of the slider 61 drives the synchronous lifting of the pressure roller 7, and the other pressure roller 7 is rotatably connected with the frame 1 through a bearing, which ensures the stability of the rotation of the pressure roller 7. The lifting of the pressure roller 7 on the slider 61 can adjust the relative distance between the pressure roller 7 and the pressure roller 7 rotatably connected to the frame 1, so as to adapt to different thicknesses of the film. The technical problem that the fixed distance between the guide rollers cannot maintain uniform tension of the film during transmission, thereby affecting the precision of the subsequent process, is solved.

[0039] Working principle: when the film needs to be wound, the staff puts one end of the film through the two pressure rollers 7, PLC controls the extension and retraction of the electric push rod 6 according to the preset program or the input of the operator, for example, selects the gear according to the film thickness, drives the sliding block 61 to move up and down in the left groove of the frame 1, changes the distance between the two pressure rollers 7, the electric push rod 6 itself is equipped with a position feedback sensor, which feeds back the actual position to the PLC, ensuring the accuracy of the distance adjustment, after the adjustment is completed, the pressure roller 7 applies appropriate pressure to the film, which plays a guiding and certain tension control role, then guides it to contact the rotating winding roller 51, at this time the winding motor 5 drives the winding roller 51 to rotate at low speed, a simple clamping device, such as a plastic clamp or an adhesive material, is provided near the winding roller 51 for more firmly fixing the starting end of the film, after fixing, the clamping device is loosened, for some special films, a short time heating can be carried out on the starting end to make it melt and adhere, or a special adhesive tape is used for fixing, which can be selected according to the actual situation;

[0040] When the staff confirms that the starting end of the film is firmly fixed on the winding roller 51 and will not loosen and fall off in the subsequent winding, the PLC controls the winding motor 5 to start rotating at the set speed through the program, while ensuring that it is synchronized with the line speed of other parts of the production line, the film starts to be wound, the camera 52 continuously shoots the film edge, the visual processor analyzes the image and calculates the offset, the PLC controls the moving motor 2 to drive the bidirectional screw 3 to rotate in real time according to the offset, so that the support frame 4 adjusts the position of the winding mechanism on the guide rail 41 through the ball sliding block 61, so that the film remains in the central position of the winding roller 51, and the PLC adjusts the output of the winding motor 5 according to the preset tension control strategy, such as constant torque, line speed ratio control, etc., to ensure that the film tension is stable during winding, avoiding loose winding or over-tightening;

[0041] When the film roll diameter on the winding roller 51 reaches the preset value, or reaches the set weight / length, the PLC controls the winding motor 5 to stop rotating, the moving motor 2 stops, and the support frame 4 and the winding mechanism on it remain in the current position, the staff uses appropriate tools to carefully loosen the bolts between the roller shaft of the winding roller 51 and the two side discs, paying attention not to completely unscrew, but only to loosen enough to remove the roller shaft, then smoothly pull out the entire roller shaft together with the film roll from the right side of the support frame 4, carefully take off the wound film roll for subsequent processing, then re-fix the empty roller shaft with the disc through the bolts to ensure the stable rotation of the roller shaft of the winding roller 51, and finally repeat the above steps to prepare for the next film winding;

[0042] Check the lubrication of the moving parts such as guide rail 41, lead screw, bearing, electric push rod 6 every day or every shift, and replenish with the specified type of lubricating oil / grease according to the requirements of the equipment, for example, the guide rail 41 and the lead screw may need to be regularly dripped with lubricating oil, and the bearing may need to be regularly replaced with lubricating grease. Record the lubrication time and amount;

[0043] Regularly clean the camera 52 lens, the surface of the compression roller 7, the guide rail 41, etc., to prevent dust and debris from affecting the precision and service life, regularly check whether the connecting bolts and nuts are loose, especially the fixation of key components such as the support frame 4, the motor, and the electric push rod 6, regularly check the wear of the guide rail 41, the lead screw, and the bearing, and regularly calibrate the camera 52, the encoder, and the electric push rod 6 position sensor, etc., to ensure the accuracy of the feedback signal;

[0044] When the equipment fails to alarm or abnormally stops, first check the alarm information on the HMI, make a preliminary judgment according to the alarm code and phenomenon, and combine the equipment schematic diagram, for example, the moving motor 2 may be a drive fault, a motor fault, a lead screw jam, or a PLC program problem;

[0045] Replace the damaged components in time, repair the circuit, and adjust the mechanical parts, for example, if the lead screw has burrs or is jammed, clean or replace it, after the repair is completed, perform a function test and a precision test to ensure that the equipment returns to normal working condition.

[0046] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field according to the technical solution and the application concept of the present application within the technical range disclosed by the present application makes equivalent replacement or change, which should be covered in the protection scope of the present application.

Claims

1. A plastic film winding device with automatic correction function, comprising a frame (1), characterized in that: The upper surface of the frame (1) is provided with a winding mechanism, which includes a winding roller (51). The rotation of the winding roller (51) winds up the film. The winding mechanism also includes a moving motor (2), which is fixedly installed on the rear end surface of the frame (1), and the output shaft of the moving motor (2) is rotatably connected to the rear end groove of the frame (1) through a bearing; The output shaft of the mobile motor (2) is fixedly mounted with a bidirectional screw (3), which is rotatably connected to the inner wall of the front end of the frame (1) via a bearing. The outer surface of the bidirectional screw (3) is threaded with a support frame (4), and the inner bottom wall of the frame (1) is fixed with a guide rail (41) by bolts. The lower surface of the support frame (4) is rolled to the track of the guide rail (41) by a ball slider (61). A winding motor (5) is fixedly installed on the rear end surface of the support frame (4). The output shaft of the winding motor (5) is fixedly installed on one end of the winding roller (51). The winding roller (51) is rotatably connected to the inner side wall of the front end of the support frame (4) through a bearing. A camera (52) is fixedly installed on the lower surface of the crossbeam of the frame (1). The upper surface of the frame (1) is provided with an adjustment mechanism, which includes two pressure rollers (7). The lifting and lowering of one pressure roller (7) is used to adjust the relative distance between it and the other pressure roller (7).

2. The plastic film winding device with automatic correction function according to claim 1, characterized in that: The adjustment mechanism also includes an electric push rod (6), which is fixedly installed on the upper left side surface of the frame (1). The telescopic rod of the electric push rod (6) is fixedly installed with a slider (61), which is slidably connected in the groove on the left side of the frame (1).

3. A plastic film winding device with automatic correction function according to claim 2, characterized in that: One of the pressure rollers (7) is rotatably connected to the outer groove of the slider (61) via a bearing, and the other pressure roller (7) is rotatably connected to the left inner wall of the frame (1) via a bearing.

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