Slitting and winding mechanism

Abstract

The utility model provides a slitting and winding mechanism, relates to the technical field of winding machines, and solves the technical problem that a thin film is easy to wrinkle by adjusting tension to rectify deviation after slitting of an existing slitting mechanism. The film deviation rectifying device comprises a rack and a plurality of groups of deviation rectifying rollers which are arranged on the rack and used for rectifying the deviation of a film, and the rack is further provided with a deviation rectifying system used for rectifying the deviation of the film. The deviation rectifying system comprises a monitoring mechanism used for detecting the position of a film of the deviation rectifying roller, an action mechanism used for adjusting the position of the deviation rectifying roller to conduct deviation rectifying and a control mechanism used for controlling the action mechanism. The working mechanism comprises a lead screw in shaft connection with the deviation rectifying roller and a servo motor used for controlling the lead screw. According to the utility model, the deviation rectifying precision can be obviously improved, the production efficiency is improved, the product quality is improved, and the operation cost is reduced; an accurate feedback signal is provided, and the real-time performance and the accuracy of deviation rectification are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of winding machines, in particular to a slitting and winding mechanism. Background Art

[0002] Film slitting is accomplished using a film slitting machine, a film processing device used for film slitting. A film slitting machine generally consists of a rewinding mechanism, a slitting mechanism, a web-correcting mechanism, and an unwinding mechanism. A film slitting machine slits parent rolls of varying widths, lengths, and thicknesses into products of the desired specifications. The key lies in precise control of the rewinding and unwinding tension to ensure the slit products are wrinkle-free, scratch-free, with neat ends and an appropriate surface hardness.

[0003] Existing winding and slitting mechanisms, such as the patent with publication number CN208246918U, disclose a new type of film slitting machine with reasonable design and novel structure. The film slitting edges are neat and of good quality, which greatly improves the efficiency of film processing. However, in the film slitting machines in the prior art, the winding rollers are often separately set in multiple groups according to the specifications of the slitting rolls after slitting. Since the film is slit during the tensioning and conveying process and is in a taut state during slitting, when slitting into multiple strip films, the slitting edges of the strip films will shrink towards the middle of the strip films under the action of the tensioning force, which can easily cause wrinkles and affect the quality of the product. In addition, after the film is slit into strips, the tensioning force applied to it changes, which can easily cause the slitting strip films to deviate.

[0004] Therefore, patent publication number CN116750557A proposes a film slitting machine with a winding tension adjustment function. This machine detects the film's tension using a pressure sensor and adjusts the tension using a magnetic powder clutch. The drive cylinder is then activated to drive the support seat toward the side of the pressure sensor experiencing increased tension, until the tension on both pressure sensors reaches the threshold set by the pressure sensors. This automatically determines that the film has returned to normal operating state, completing the film's deviation correction. However, this device's deviation correction process actually increases the film's lateral tension, making it more likely to cause wrinkles in the film after slitting. Utility Model Content

[0005] The utility model aims to provide a slitting and winding mechanism to solve the technical problem that the existing slitting mechanism easily causes film wrinkles by adjusting the tension to correct the deviation after slitting.

[0006] The embodiments of the present invention are achieved through the following technical solutions:

[0007] A slitting and winding mechanism comprises a frame and several groups of correcting rollers arranged on the frame for correcting the deflection of a film. The frame is also provided with a correcting system for correcting the deflection of the film. The correcting system comprises a monitoring mechanism for detecting the position of the film of the correcting roller, an action mechanism for adjusting the position of the correcting roller for correction, and a control mechanism for controlling the action mechanism. The action mechanism comprises a screw shaft connected to the correcting roller and a servo motor for controlling the screw shaft.

[0008] Preferably, the deflection-correcting roller includes a first deflection-correcting roller and a second deflection-correcting roller, and the servo motor includes a first servo motor and a second servo motor respectively connected to the first deflection-correcting roller and the second deflection-correcting roller.

[0009] Preferably, it further comprises a first winding roller and a second winding roller respectively connected to the first deviation-correcting roller and the second deviation-correcting roller for winding up the film, and also comprises an unwinding roller for unwinding.

[0010] Preferably, the monitoring mechanism includes a photoelectric sensor for monitoring the edge of the film and an encoder for detecting the conveying speed of the film. The encoder shaft is connected to a speed measuring roller, and the speed measuring roller is arranged between the correcting roller and the unwinding roller.

[0011] Preferably, the device further comprises a controller electrically connected to the servo motor, the encoder and the photoelectric sensor for controlling the servo motor.

[0012] Preferably, it further comprises a tension frame arranged above the frame for introducing the film roll and a base for supporting the frame, wherein the tension frame is provided with a first tension roller for introducing the film roll and a second tension roller for tightening the film roll.

[0013] Preferably, the second tension roller includes a group of fixed rollers and a group of movable rollers for adjusting the film roll, and the tension frame is further provided with a telescopic device for adjusting the movable rollers.

[0014] This technology uses a photoelectric sensor to detect the edge of the film. By emitting and receiving light, it determines whether the film has deviated from the predetermined position, ensuring accurate correction. It also detects the film's speed and position, providing precise feedback signals to ensure real-time and accurate correction.

[0015] Precisely controlling the movement of the lead screw ensures precise lateral movement of the correction roller, enabling high-precision correction. Integrated PLC and sensors enable automatic control of the correction system, ensuring stability and reliability. Automatic detection and correction reduce manual intervention and improve production efficiency.

[0016] The rapid response of the servo motor and photoelectric sensor ensures timely and accurate web correction, minimizing downtime. The first and second web correction rollers are controlled by independent servo motors, ensuring precise and flexible multi-stage web correction. Real-time detection and automatic web correction ensure the film remains in the intended position, minimizing drift and misalignment, and improving product quality and consistency. This reduces scrap caused by web deviation, lowering production costs and increasing yield. The system's automatic detection and correction reduces manual intervention and labor costs, minimizing scrap caused by web deviation and lowering production costs.

[0017] The tension rack features first and second tension rollers to ensure uniform film tension and enhance operational convenience and stability. The first and second correction rollers are controlled by independent servo motors, ensuring accurate and flexible multi-stage correction and enhancing system stability. A speed measuring roller, located between the correction roller and the unwinding roller, uses an encoder to detect film speed, ensuring stable system operation.

[0018] Through the above design and optimization, the slitting and winding mechanism can significantly improve the correction accuracy, improve production efficiency, improve product quality, reduce operating costs, improve operation convenience, and improve system stability.

[0019] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0020] 1. The slitting and winding mechanism of this utility model can significantly improve the correction accuracy, increase production efficiency, improve product quality and reduce operating costs;

[0021] 2. The utility model provides accurate feedback signals to ensure the real-time and accuracy of deviation correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A side structural diagram of the slitting and winding mechanism provided in Example 1 of the present utility model;

[0024] Figure 2 This is a front view structural diagram of the slitting and winding mechanism provided in Example 1 of the present utility model;

[0025] Icons: 1. Base; 2. Frame; 3. Unwinding roller; 41. First servo motor; 411. First deviation-correcting roller; 412. Second deviation-correcting roller; 42. Second servo motor; 5. Tension frame; 51. First tension roller; 52. Second tension roller; 521. Fixed roller; 522. Movable roller; 53. Photoelectric sensor; 6. Telescopic device; 71. First winding roller; 72. Second winding roller; 8. Encoder; 81. Speed ​​measuring roller. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0030] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] Example 1

[0032] A slitting and winding mechanism includes a frame 2 and several groups of correcting rollers arranged on the frame 2 for correcting the deflection of a film. The frame 2 is also provided with a correcting system for correcting the deflection of the film. The correcting system includes a monitoring mechanism for detecting the position of the film of the correcting roller, an action mechanism for adjusting the position of the correcting roller for correction, and a control mechanism for controlling the action mechanism. The action mechanism includes a screw shaft connected to the correcting roller and a servo motor for controlling the screw shaft.

[0033] In this embodiment, the correcting rollers include a first correcting roller 411 and a second correcting roller 412 , and the servo motors include a first servo motor 41 and a second servo motor 42 connected to the first correcting roller 411 and the second correcting roller 412 , respectively.

[0034] In this embodiment, the film further includes a first winding roller 71 and a second winding roller 72 connected to the first deflection-correcting roller 411 and the second deflection-correcting roller 412 respectively for winding the film, and also includes an unwinding roller 3 for unwinding the film.

[0035] In this embodiment, the monitoring mechanism includes a photoelectric sensor 53 for monitoring the edge of the film and an encoder 8 for detecting the film conveying speed. The encoder 8 is connected to a speed measuring roller 81, and the speed measuring roller 81 is arranged between the correction roller and the unwinding roller 3.

[0036] In this embodiment, a controller is further included that is electrically connected to the servo motor, the encoder 8 and the photoelectric sensor 53 to control the servo motor.

[0037] In this embodiment, it also includes a tension frame 5 arranged above the frame 2 for introducing the film roll and a base 1 for supporting the frame 2. The tension frame 5 is provided with a first tension roller 51 for introducing the film roll and a second tension roller 52 for tightening the film roll.

[0038] In this embodiment, the second tension roller 52 includes a set of fixed rollers 521 and a set of movable rollers 522 for adjusting the film roll. The tension frame 5 is further provided with a telescopic device 6 for adjusting the movable rollers 522.

[0039] Working principle and usage:

[0040] The photoelectric sensor 53 detects the edge position of the film. By emitting and receiving light, it determines whether the film has deviated from the predetermined position, ensuring the accuracy of the correction. It is used to detect the speed and position of the film and provide accurate feedback signals to ensure the real-time and accurate correction.

[0041] Precisely controlling the movement of the lead screw ensures precise lateral movement of the correction roller, enabling high-precision correction. Integrated PLC and sensors enable automatic control of the correction system, ensuring stability and reliability. Automatic detection and correction reduce manual intervention and improve production efficiency.

[0042] The rapid response of the servo motor and photoelectric sensor 53 ensures timely and accurate correction, minimizing downtime. The first and second correction rollers 411, 412 are each controlled by an independent servo motor, ensuring the precision and flexibility of multi-stage correction. Real-time detection and automatic correction ensure that the film remains in the intended position, minimizing drift and misalignment, and improving product quality and consistency. This reduces scrap caused by drift, lowers production costs, and increases yield. The system automatically detects and corrects, minimizing manual intervention and labor costs. This reduces scrap caused by drift and reduces production costs.

[0043] The tension frame 5 is equipped with a first tension roller 51 and a second tension roller 52 to ensure uniform film tension and enhance operational convenience and stability. The first and second correction rollers 411 and 412 are each controlled by independent servo motors, ensuring the accuracy and flexibility of multi-stage correction and improving system stability. A speed measuring roller 81, located between the correction rollers and the unwinding roller 3, detects the film's speed via an encoder 8, ensuring stable system operation.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A slitting and winding mechanism, comprising a frame (2) and a plurality of deflection correction rollers arranged on the frame (2) for correcting the deflection of a film, characterized in that: The frame (2) is also provided with a correction system for correcting the film, the correction system comprising a monitoring mechanism for detecting the position of the correction roller film, an action mechanism for adjusting the position of the correction roller for correction, and a control mechanism for controlling the action mechanism, the action mechanism comprising a screw shaft connected to the correction roller and a servo motor for controlling the screw shaft.

2. A slitting and winding mechanism according to claim 1, characterized in that: The deflection correction roller comprises a first deflection correction roller (411) and a second deflection correction roller (412), and the servo motor comprises a first servo motor (41) and a second servo motor (42) respectively connected to the first deflection correction roller (411) and the second deflection correction roller (412).

3. The slitting and winding mechanism according to claim 2, characterized in that: It also includes a first winding roller (71) and a second winding roller (72) for winding the film, which are respectively connected to the first deviation-correcting roller (411) and the second deviation-correcting roller (412), and an unwinding roller (3) for unwinding.

4. The slitting and winding mechanism according to claim 3, characterized in that: The monitoring mechanism includes a photoelectric sensor (53) for monitoring the edge of the film and an encoder (8) for detecting the film conveying speed. The encoder (8) is connected to a speed measuring roller (81) and the speed measuring roller (81) is arranged between the deviation correction roller and the unwinding roller (3).

5. The slitting and winding mechanism according to claim 4, characterized in that: It also includes a controller electrically connected to the servo motor, the encoder (8) and the photoelectric sensor (53) for controlling the servo motor.

6. A slitting and winding mechanism according to any one of claims 1 to 5, characterized in that: The invention also includes a tension frame (5) arranged above the frame (2) for introducing a film roll and a base (1) for supporting the frame (2); the tension frame (5) is provided with a first tension roller (51) for introducing the film roll and a second tension roller (52) for tightening the film roll.

7. The slitting and winding mechanism according to claim 6, characterized in that: The second tension roller (52) includes a group of fixed rollers (521) and a group of movable rollers (522) for adjusting the film roll, and the tension frame (5) is also provided with a telescopic device (6) for adjusting the movable rollers (522).

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