Rewinding flattening detection machine

Abstract

The utility model discloses a rewinding and flattening detection machine which comprises a machine frame, and an unwinding mechanism, a flattening mechanism, a driving mechanism, a scraper mechanism, a CCD detection mechanism and a winding mechanism are sequentially arranged on the machine frame in the rewinding direction of thin film coiled materials. A thin film coiled material unwound from the unwinding mechanism sequentially passes through the flattening mechanism, the driving mechanism, the scraper mechanism and the CCD detection mechanism and then is wound in the winding mechanism, the scraper mechanism is used for scraping convex points with unqualified thicknesses on the thin film coiled material, and the CCD detection mechanism is used for detecting the thickness of the thin film coiled material. And the CCD detection mechanism is used for detecting surface flaws of the film coiled material passing through the scraper mechanism. The rewinding flattening detection machine not only can effectively flatten and remove salient points on the film coiled material, but also can detect surface flaws of the film coiled material before winding, so that the quality of the rewound film coiled material is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rewinding machines, in particular to a rewinding flattening detection machine. Background Art

[0002] A rewinder generally refers to an industrial mechanical device that rolls large rolls of paper, film and other materials of a certain width into small rolls according to the required length.

[0003] The Chinese utility model patent with patent number 202222301450.7 discloses a rewinder flattening structure, including a rewinder body, on which a main rotating shaft and a secondary rotating shaft are symmetrically arranged, and the flattening structure includes a pleat adjustment roller, a tension adjustment roller, a pressure roller and a flattening roller arranged in sequence from the secondary rotating shaft to the main rotating shaft; the pleat adjustment roller is arranged as a rotating shaft which is thick in the middle and thin at both ends; the rewinder body is provided with a horizontal spring structure adapted to the tension adjustment roller; the pressure roller includes an upper pressure roller and a lower pressure roller, the upper pressure roller is located directly above the lower pressure roller, and the lower pressure roller is rotatably installed on the side wall of the rewinder body; a pressure platform is provided on the side wall of the rewinder body and below the flattening roller; the upper end of the upper pressure roller and the upper end of the flattening roller are jointly provided with a driving structure. The flattening structure of the rewinder adjusts the wrinkles of the product by setting a wrinkle adjusting roller, straightens the product by a tension adjusting roller, and flattens the product by a pressing roller and a flattening roller, thereby avoiding the problem that the product after rewinding is often uneven due to folding on the surface of products such as paper, mica tape, and film, thereby affecting the product quality.

[0004] However, the flattening structure of the rewinder lacks the function of quality inspection of the flattened product, and cannot guarantee whether the flattened product meets the quality requirements, and is not suitable for flattening and rewinding thin film coils such as separators and pole pieces for lithium batteries. There are some convex points on the surface of thin film coils such as separators and pole pieces for lithium batteries. Flattening by flattening rollers alone cannot guarantee that the flattened thin film coils meet the thickness requirements. Utility Model Content

[0005] In order to overcome the problems that the flattening structure of the rewinder in the prior art cannot perform quality inspection on the flattened product and is not suitable for thin film coils such as separators and pole pieces for lithium batteries, the utility model provides a rewinding flattening inspection machine.

[0006] The technical solution of the utility model is as follows:

[0007] A rewinding and flattening detection machine comprises a frame, on which an unwinding mechanism, a flattening mechanism, a driving mechanism, a scraper mechanism, a CCD detection mechanism and a rewinding mechanism are arranged in sequence along the rewinding direction of a film coil. The film coil unwinded from the unwinding mechanism passes through the flattening mechanism, the driving mechanism, the scraper mechanism and the CCD detection mechanism in sequence, and is then rewinded in the rewinding mechanism. The scraper mechanism is used for scraping off convex points with unqualified thickness on the film coil, and the CCD detection mechanism is used for detecting surface defects of the film coil after passing through the scraper mechanism.

[0008] As a preferred embodiment of the rewinding flattening detection machine of the utility model, the flattening mechanism includes an upper pressure roller with a fixed position and a lower pressure roller with an adjustable position up and down, and the upper pressure roller is located directly above the lower pressure roller.

[0009] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, the driving mechanism includes a main driving roller with a fixed position and a main driving pressure roller that can tighten or loosen the main driving roller, and the main driving roller is located directly below the main driving pressure roller.

[0010] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, the scraper mechanism includes a scraper roller with a fixed position and a scraper whose position can be adjusted up and down, and the scraper roller is located directly above the scraper.

[0011] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, the unwinding mechanism is provided with a laser rangefinder for measuring the unwinding roll diameter.

[0012] As a preferred embodiment of the rewinding and flattening detection machine described in the utility model, a tension adjustment roller whose position can be adjusted in the horizontal and vertical directions is arranged between the unwinding mechanism and the flattening mechanism, and the film roll unwound from the unwinding mechanism passes through the tension adjustment roller and the flattening mechanism in sequence.

[0013] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, a flattening roller is arranged between the tension adjustment roller and the flattening mechanism, and the film roll unwound from the unwinding mechanism passes through the tension adjustment roller, the flattening roller and the flattening mechanism in sequence.

[0014] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, a tension detection roller is arranged between the scraper mechanism and the CCD detection mechanism, and the film coil passing through the scraper mechanism passes through the tension detection roller and the CCD detection mechanism in sequence.

[0015] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, a tension sensor is provided on the side of the tension detection roller that contacts the film coil.

[0016] As a preferred embodiment of the rewinding and flattening detection machine of the utility model, a rewinding pressure roller mechanism is arranged between the CCD detection mechanism and the rewinding mechanism, and the pressure roller of the rewinding pressure roller mechanism presses against the film coil rewound in the rewinding mechanism.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a rewinding and flattening detection machine suitable for the flattening and rewinding of thin film coils such as separators and pole pieces for lithium batteries. By arranging a scraper mechanism, convex points with unqualified thickness on the thin film coil can be scraped off to ensure the uniformity of the thin film coil after rewinding. At the same time, by arranging a CCD detection mechanism, surface defects of the thin film coil can be detected in real time before rewinding, thereby ensuring the quality of the thin film coil after rewinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of another embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the winding roller mechanism in one embodiment of the utility model.

[0023] In the figure,

[0024] 1. Frame; 2. Unwinding mechanism; 3. Flattening mechanism; 301. Upper pressure roller; 302. Lower pressure roller; 4. Driving mechanism; 401. Main driving roller; 402. Main driving pressure roller; 5. Scraper mechanism; 501. Scraper roller; 502. Scraper; 6. CCD detection mechanism; 7. Winding mechanism; 8. Tension adjustment roller; 9. Flattening roller; 10. Tension detection roller; 11. Winding pressure roller mechanism; 1101. Moving frame; 1102. Passing roller; 1103. Rocker; 1104. Pressure roller; 100. Film coil. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is stated that the embodiments described below are only used to explain the utility model and are not used to limit the utility model.

[0026] It should be noted that the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship in which the application product is usually placed when in use. It is only for the convenience of describing the present application 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, and therefore cannot be understood as a limitation on the present application.

[0027] See also Figure 1 The present embodiment provides a rewinding and flattening inspection machine, comprising a frame 1, on which an unwinding mechanism 2, a flattening mechanism 3, a driving mechanism 4, a scraper mechanism 5, a CCD inspection mechanism 6, and a rewinding mechanism 7 are sequentially arranged along the rewinding direction of the film coil 100. When working, the film coil 100 unwound from the unwinding mechanism 2 first passes through the flattening mechanism 3, the driving mechanism 4, the scraper mechanism 5, and the CCD inspection mechanism 6, and then is rewound in the rewinding mechanism 7. Among them, the unwinding mechanism 2 is used to unwind the film coil 100, the flattening mechanism 3 is used to squeeze and flatten the convex points on the film coil 100, the driving mechanism 4 is used to provide power for the movement of the film coil 100, the scraper mechanism 5 is used to scrape off the convex points on the film coil 100 with unqualified thickness, and the CCD inspection mechanism 6 is used to detect surface defects of the film coil 100 after passing through the scraper mechanism 5. If defects are found, an alarm will be immediately issued to the background control system.

[0028] The rewinding and flattening inspection machine provided by the utility model is suitable for the flattening and rewinding operation of thin film coils 100 such as isolation membranes and pole pieces for lithium batteries, and by arranging a scraper mechanism 5, convex points with unqualified thickness on the thin film coil 100 can be scraped off to ensure the uniformity of the thin film coil 100 after rewinding. At the same time, by arranging a CCD inspection mechanism 6, surface defects of the thin film coil 100 can be detected in real time before rewinding, thereby ensuring the quality of the thin film coil 100 after rewinding.

[0029] See also Figure 1 In one embodiment, the flattening mechanism 3 includes an upper pressure roller 301 with a fixed position and a lower pressure roller 302 with an adjustable position up and down, and the upper pressure roller 301 is located directly above the lower pressure roller 302. By adjusting the position of the lower pressure roller 302, the spacing between the upper pressure roller 301 and the lower pressure roller 302 is adjusted to a certain numerical range, and the film coil 100 without convex points will only contact the upper pressure roller 301 when passing through the flattening mechanism 3, and when there are convex points on the film coil 100, the convex points will be squeezed flat by the lower pressure roller 302. Among them, the upper pressure roller 301 and the lower pressure roller 302 are both steel rollers with hardened surfaces, which greatly improves the wear resistance and pressure resistance of the upper pressure roller 301 and the lower pressure roller 302, ensuring that the flattening mechanism 3 can maintain stable performance during long-term use, and reducing the frequency of maintenance and replacement. In addition, since the position of the lower pressure roller 302 can be adjusted up and down, it means that it can be flexibly adjusted according to the film roll 100 of different thickness and hardness so that the distance between it and the upper pressure roller 301 reaches the optimal state. This adjustability enables the flattening mechanism 3 to adapt to film rolls 100 of different specifications and requirements, thereby improving the versatility and scope of use of the equipment.

[0030] See also Figure 1 In one embodiment, the driving mechanism 4 includes a main driving roller 401 with a fixed position and a main driving pressure roller 402 that can press or release the main driving roller 401. The main driving roller 401 is located directly below the main driving pressure roller 402. This setting can effectively isolate the winding and unwinding tension, so that the film coil 100 maintains a stable tension during the transmission process. Stable tension is a key factor to ensure that the film coil 100 is flat and wrinkle-free, which is crucial for subsequent processing and treatment. The pressure of the main driving pressure roller 402 can be adjusted to achieve effective driving of different film coils 100. In addition, the main driving pressure roller 402 is made of rubber material, while the main driving roller 401 is a steel roller. This material combination can effectively prevent the film coil 100 from sliding during the transmission process. The rubber roller has good friction performance and can increase the friction between the film coil 100 and prevent it from slipping. The steel roller provides sufficient support and stability.

[0031] See also Figure 1In one embodiment, the scraper mechanism 5 includes a fixed scraper roller 501 and a scraper 502 whose position can be adjusted up and down, and the scraper roller 501 is located directly above the scraper 502. By adjusting the position of the scraper 502, the spacing between the upper pressure roller 301 and the lower pressure roller 302 is adjusted to a certain value range, and the film coil 100 with qualified convex point thickness after rolling will only contact the scraper roller 501 when passing through the scraper mechanism 5, and when the film coil 100 with qualified convex point thickness after rolling passes through the scraper mechanism 5, the convex points on the film coil 100 with unqualified thickness after rolling will be scraped off by the scraper 502, ensuring that the thickness and surface quality of the film coil 100 meet the requirements, maintaining the uniformity of the film coil 100 in the subsequent processing process, and preventing quality problems caused by uneven thickness. Since the scraper 502 can be adjusted up and down, the scraper mechanism 5 can adapt to film rolls 100 of different thicknesses and surface conditions. By adjusting the position of the scraper 502, the contact pressure between it and the film roll 100 can be accurately controlled, thereby effectively scraping off bumps with unqualified thickness.

[0032] In one embodiment, a laser rangefinder for measuring the unwinding coil diameter is provided on the unwinding mechanism 2, and the laser rangefinder is used to send the measurement result to the background control system in real time, so as to control the torque of the unwinding motor through the background control system, and then control the tension of the unwinding section. This setting can achieve precise tension control, ensure stability and consistency during the unwinding process, help improve production efficiency and product quality, and reduce waste and defective rate.

[0033] See also Figure 1 In one embodiment, a tension adjustment roller 8 that can be adjusted in the horizontal and vertical directions is provided between the unwinding mechanism 2 and the flattening mechanism 3. During operation, the film coil 100 unwound from the unwinding mechanism 2 passes through the tension adjustment roller 8 and the flattening mechanism 3 in sequence. Since the tension adjustment roller 8 can adjust its position in the horizontal and vertical directions, the tension adjustment roller 8 can effectively adjust the tension of the film coil 100. By accurately adjusting the position of the tension adjustment roller 8, it can be ensured that the film coil 100 has consistent internal and external tension before passing through the flattening mechanism 3. Stable tension can reduce production interruptions and defective rates, thereby improving overall production efficiency.

[0034] See also Figure 1Furthermore, a flattening roller 9 is provided between the tension adjustment roller 8 and the flattening mechanism 3. During operation, the film coil 100 unwound from the unwinding mechanism 2 passes through the tension adjustment roller 8, the flattening roller 9, and the flattening mechanism 3 in sequence. The flattening roller 9, through its specific design and surface characteristics, can exert a certain pressure and friction force on the film coil 100 when it passes, thereby helping the coil to unfold better. This is particularly effective for the film coil 100 that may have slight bends or wrinkles after tension adjustment, and can significantly improve its flatness. If the film coil 100 is not fully unfolded before entering the flattening mechanism 3, uneven pressure distribution may occur during the flattening process, resulting in poor flattening effect or other problems. The setting of the flattening roller 9 can flatten the film coil 100 in advance, thereby reducing the occurrence of these problems.

[0035] See also Figure 1 In one embodiment, a tension detection roller 10 is provided between the scraper mechanism 5 and the CCD detection mechanism 6, and the film coil 100 after passing through the scraper mechanism 5 passes through the tension detection roller 10 and the CCD detection mechanism 6 in sequence. Among them, a tension sensor is provided on the side of the tension detection roller 10 that contacts the film coil 100, and the tension sensor is used to measure the tension of the winding section and then feed it back to the winding motor of the winding mechanism 7, and close the loop to adjust the tension of the winding section, so as to ensure the stability of the tension of the film coil 100 during the winding process, which is very important for maintaining the quality of the film coil 100 and preventing problems such as distortion and wrinkles during the winding process.

[0036] See also Figure 2 In one embodiment, a winding roller mechanism 11 is arranged between the CCD detection mechanism 6 and the winding mechanism 7. The pressure roller 1104 of the winding roller mechanism 11 presses against the film coil 100 wound on the winding mechanism 7, which can ensure that the film coil 100 has a higher density during the winding process, so as to reduce the gaps and looseness inside the film coil 100 after winding, and improve the overall winding quality.

[0037] See also Figure 3Specifically, the winding and pressing roller mechanism 11 includes a moving frame 1101 that can move forward and backward, a roller 1102 installed on the moving frame 1101, a swing rod 1103 movably installed on the side of the moving frame 1101 close to the winding mechanism 7, a pressing roller 1104 installed at the end of the swing rod 1103, and a cylinder installed on the moving frame 1101, and the telescopic end of the cylinder is connected to the side of the swing rod 1103 away from the winding mechanism 7. The film coil 100 passes through the roller 1102 and the pressing roller 1104 in sequence and is wound on the winding mechanism 7. During operation, after the cylinder is started, it drives the swing rod 1103 to rotate toward the winding mechanism 7, and the swing rod 1103 drives the pressure roller 1104 to press against the film coil 100 wound on the winding mechanism 7; when the winding diameter changes, the movable frame 1101 can move forward and backward to ensure that the contact angle between the pressure roller 1104 and the winding film remains unchanged. For example, when the winding diameter increases, the movable frame 1101 retreats, driving the over roller 1102 and the pressure roller 1104 away from the winding mechanism 7. When the winding diameter decreases, the movable frame 1101 moves forward, driving the over roller 1102 and the pressure roller 1104 close to the winding mechanism 7. By maintaining a constant contact angle and pressure, the winding pressure roller mechanism 11 can reduce the problems of the film coil 100 deviation, wrinkles or relaxation that may occur during the winding process, which helps to improve the flatness and overall quality of the film coil 100 after winding.

[0038] See also Figure 1 In one embodiment, the unwinding mechanism 2 and the rewinding mechanism 7 both adopt a cantilever structure, so that the bottom of both are hollowed out to facilitate docking with the AGV to achieve automatic roll changing.

[0039] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0040] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A rewinding and flattening testing machine, characterized in that: The machine comprises a frame, on which an unwinding mechanism, a flattening mechanism, a driving mechanism, a scraper mechanism, a CCD detection mechanism and a winding mechanism are sequentially arranged along the rewinding direction of the film coil. The film coil unwound from the unwinding mechanism passes through the flattening mechanism, the driving mechanism, the scraper mechanism and the CCD detection mechanism in sequence and is then wound into the winding mechanism. The scraper mechanism is used for scraping off convex points with unqualified thickness on the film coil, and the CCD detection mechanism is used for detecting surface defects of the film coil after passing through the scraper mechanism.

2. The rewinding and flattening detection machine according to claim 1, characterized in that: The flattening mechanism comprises an upper pressing roller whose position is fixed and a lower pressing roller whose position can be adjusted up and down, and the upper pressing roller is located directly above the lower pressing roller.

3. The rewinding and flattening detection machine according to claim 1, characterized in that: The driving mechanism comprises a main driving roller with a fixed position and a main driving pressure roller capable of pressing or releasing the main driving roller, wherein the main driving roller is located directly below the main driving pressure roller.

4. The rewinding and flattening detection machine according to claim 1, characterized in that: The scraper mechanism comprises a scraper roller with a fixed position and a scraper whose position can be adjusted up and down, and the scraper roller is located directly above the scraper.

5. The rewinding and flattening detection machine according to claim 1, characterized in that: The unwinding mechanism is provided with a laser rangefinder for measuring the unwinding coil diameter.

6. The rewinding and flattening detection machine according to claim 1, characterized in that: A tension adjusting roller whose position can be adjusted in the horizontal and vertical directions is arranged between the unwinding mechanism and the flattening mechanism, and the film roll unwound from the unwinding mechanism passes through the tension adjusting roller and the flattening mechanism in sequence.

7. The rewinding and flattening inspection machine according to claim 6, characterized in that: A flattening roller is arranged between the tension adjusting roller and the flattening mechanism, and the film coil unwound from the unwinding mechanism passes through the tension adjusting roller, the flattening roller and the flattening mechanism in sequence.

8. The rewinding and flattening detection machine according to claim 1, characterized in that: A tension detection roller is arranged between the scraper mechanism and the CCD detection mechanism, and the film coil passing through the scraper mechanism passes through the tension detection roller and the CCD detection mechanism in sequence.

9. The rewinding and flattening detection machine according to claim 8, characterized in that: A tension sensor is provided on the side of the tension detection roller that contacts the film coil.

10. The rewinding and flattening inspection machine according to claim 1, characterized in that: A winding pressure roller mechanism is arranged between the CCD detection mechanism and the winding mechanism, and a pressure roller of the winding pressure roller mechanism presses toward the film coil wound on the winding mechanism.

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