Rolling device

Abstract

The utility model relates to a rolling device. The rolling device comprises a conveying mechanism used for conveying a material belt; the rolling mechanism is arranged on the conveying path of the material belt, the rolling mechanism is provided with a rolling gap for the material belt to pass through, the size of the rolling gap can be adjusted, and the rolling mechanism is used for rolling the material belt passing through the rolling gap; the visual detection mechanism is arranged at the upstream of the rolling mechanism and is used for carrying out visual detection on the passing material belt; the controller is in communication connection with the visual inspection mechanism and the conveying mechanism; when the visual detection mechanism detects that the material belt has defects, the controller controls the conveying mechanism to adjust the tension of the material belt, controls the conveying mechanism to adjust the conveying speed of the material belt and / or controls the rolling mechanism to adjust the rolling gap.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a rolling device. Background Art

[0002] Pole sheet rolling is an important step in the production process of lithium-ion batteries, and its purpose is to obtain pole sheets that meet design requirements. After the pole sheets are coated and dried, they need to be rolled to increase the active material loading per unit volume of the powder layer, ensure the consistency of the pole sheet thickness, and enhance the bonding strength between the active material and the foil to prevent peeling during electrolyte immersion and battery use.

[0003] In the actual production process, since the pole piece strip is subjected to a large rolling force during rolling, wrinkles or even strip breakage may easily occur during rolling. Utility Model Content

[0004] Based on this, it is necessary to provide a rolling device that improves the above defects in order to solve the problem that wrinkles or even belt breakage are easily generated during rolling in the prior art.

[0005] A rolling device, comprising:

[0006] A conveying mechanism, used for conveying the material belt;

[0007] A rolling mechanism, arranged on the conveying path of the material strip, the rolling mechanism having a rolling gap for the material strip to pass through, the size of the rolling gap being adjustable, and the rolling mechanism being used to roll the material strip passing through the rolling gap;

[0008] A visual inspection mechanism, arranged upstream of the rolling mechanism, for visually inspecting the material strip passing through; and

[0009] A controller is communicatively connected with the visual inspection mechanism and the conveying mechanism; when the visual inspection mechanism detects that the material belt has defects, the controller controls the conveying mechanism to adjust the tension of the material belt, controls the conveying mechanism to adjust the conveying speed of the material belt and / or controls the rolling mechanism to adjust the rolling gap.

[0010] In one embodiment, the visual inspection mechanism includes a first roller and a first visual inspection component, the material strip is wound from the first roller toward one side of the first visual inspection component, and the first side surface of the material strip faces the first visual inspection component, and the first visual inspection component performs visual inspection on the first side surface of the material strip wound on the first roller.

[0011] In one embodiment, the visual inspection mechanism further includes a second roller and a second visual inspection component, the material strip is wound around the second roller toward one side of the second visual inspection component, and the second side surface of the material strip faces the second visual inspection component, and the second visual inspection component performs visual inspection on the second side surface of the material strip wound around the second roller.

[0012] In one embodiment, the visual detection mechanism further includes a first light source and a second light source, wherein the first light source is arranged facing the side of the first roller around which the material tape is wound, and is used to illuminate the material tape wound on the first roller; and the second light source is arranged facing the side of the second roller around which the material tape is wound, and is used to illuminate the material tape wound on the second roller.

[0013] In one of the embodiments, when the visual inspection mechanism detects defects in the material belt, the controller controls the conveying mechanism to reduce the tension of the material belt, controls the conveying mechanism to reduce the conveying speed of the material belt, and / or controls the rolling mechanism to increase the rolling gap.

[0014] In one embodiment, the conveying mechanism includes a first stretching assembly and a second stretching assembly, wherein the first stretching assembly is arranged upstream of the rolling mechanism, and is used to pull the passing material strip to convey it downstream; the second stretching assembly is arranged downstream of the rolling mechanism, and is used to pull the passing material strip to convey it downstream.

[0015] In one embodiment, the first stretching component has a first active roller for the passing material strip to pass around, and the first active roller can be controlled to rotate around its own axis to drive the material strip to be transported downstream; the controller is communicatively connected to the first stretching component to control the rotation speed of the first active roller according to the detection result of the visual detection mechanism.

[0016] In one embodiment, the second stretching assembly has a second active roller, the second active roller is for the passing material strip to pass around, and the second active roller can be controlled to rotate around its own axis to drive the material strip to be transported downstream;

[0017] The controller is in communication connection with the second stretching assembly to control the rotation speed of the second active roller according to the detection result of the visual detection mechanism.

[0018] In one embodiment, the conveying mechanism further comprises an unwinding assembly arranged upstream of the first stretching assembly, the unwinding assembly having an unwinding shaft for mounting a material roll, and the unwinding shaft can be controlled to rotate to unwind and output the material tape downstream;

[0019] The controller is in communication connection with the unwinding assembly to control the rotation speed of the unwinding shaft according to the detection result of the visual detection mechanism.

[0020] In one embodiment, the conveying mechanism further comprises a winding assembly arranged downstream of the second stretching assembly, the winding assembly having a winding shaft for mounting a material roll, and the winding shaft can be controlled to rotate to wind up the material tape;

[0021] The controller is in communication connection with the winding assembly to control the rotation speed of the winding shaft according to the detection result of the visual detection mechanism.

[0022] In one embodiment, the rolling mechanism includes a frame, a first mounting seat, a first pressing roller, a second mounting seat and a second pressing roller;

[0023] The first mounting seat and the second mounting seat are both arranged on the frame, the first pressing roller is rotatably connected to the first mounting seat, the second pressing roller is rotatably connected to the second mounting seat, the pressing gap is formed between the first pressing roller and the second pressing roller, and the first mounting seat can be controlled to move relative to the frame to drive the first pressing roller to approach or move away from the second pressing roller;

[0024] The controller is in communication connection with the rolling mechanism to control the rolling mechanism to drive the first mounting seat to move according to the detection result of the visual detection mechanism.

[0025] In actual use of the above-mentioned rolling device, when the visual inspection mechanism detects defects such as cracks or breakages on the incoming material of the material strip, in order to reduce the risk of wrinkles or even breaks in the defective section of the material strip during the rolling process, the controller controls the conveying mechanism to adjust the tension of the material strip, controls the conveying mechanism to adjust the conveying speed of the material strip and / or controls the rolling mechanism to adjust the size of the rolling gap, so that the tension of the material strip, the conveying speed of the material strip and / or the rolling gap are more suitable for rolling the defective section of the material strip, thereby greatly reducing the risk of wrinkles or even breaks due to defects in the material strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a roller pressing device in one embodiment of the utility model;

[0027] Figure 2 for Figure 1 The structural schematic diagram of the visual inspection mechanism of the rolling device shown. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] In the prior art, the material strip enters the rolling gap between two rollers at a certain tension and a certain conveying speed for rolling processing. In the actual production process, wrinkles or even broken strips often occur on the material strip. In long-term practice, the inventors have found that the incoming material of the material strip often has defects such as cracks or damages. Therefore, when there are defects such as cracks or damages on the incoming material of the material strip, the probability of wrinkles or even broken strips in the defective section of the material strip during rolling is greatly increased.

[0035] Based on the above situation, the inventor of this application creatively proposes: when there are defects such as cracks or breakages on the incoming material of the material strip, the rolling device is controlled to adjust the process parameters (such as the conveying speed of the material strip, the tension of the material strip and the rolling gap 203 described below), so that the adjusted process parameters are more suitable for the rolling process of the section of the material strip with defects such as cracks or breakages, thereby greatly reducing the risk of wrinkles or even broken strips when the section of the material strip with defects such as cracks or breakages is rolled. It should be noted that the material strip in this article can be a pole piece, of course, it can also be other types of material strips, which are not limited here.

[0036] See also Figure 1An embodiment of the utility model provides a rolling device, including a conveying mechanism 100, a rolling mechanism 200, a visual inspection mechanism 300 and a controller. The conveying mechanism 100 is used to convey the material belt, so that the material belt is conveyed along a preset path, and the tension of the material belt and the conveying speed of the material belt are controlled. The rolling mechanism 200 is arranged on the conveying path of the material belt. The rolling mechanism 200 has a rolling gap 203 through which the material supply belt passes, and the rolling mechanism 200 is used to roll the material belt passing through the rolling gap 203. The size of the rolling gap 203 is adjustable, so as to adapt to the rolling of material belts of different thicknesses, which greatly improves the compatibility of the rolling device. The visual inspection mechanism 300 is arranged upstream of the rolling mechanism 200, and is used to visually inspect the material belt passing through. That is, the material belt is visually inspected before entering the rolling gap 203. The controller is communicatively connected with the visual inspection mechanism 300 and the conveying mechanism 100. When the visual inspection mechanism 300 detects defects such as cracks or damages in the material belt, the visual inspection mechanism 300 sends a defect signal to the controller. After receiving the defect signal, the controller sends a first adjustment instruction to the conveying mechanism 100, so that the conveying mechanism 100 adjusts the tension of the material belt, so that the tension of the material belt is adaptively adjusted due to defects such as cracks or damages in the incoming material belt, thereby reducing the risk of wrinkles or even broken belts due to defects in the material belt. Optionally, the controller can use an industrial computer.

[0037] Optionally, the controller is also used to send a second adjustment instruction to the conveying mechanism 100 after receiving the defect signal, so that the conveying mechanism 100 adjusts the conveying speed of the material belt, so that the conveying speed of the material belt is adjusted due to defects in the incoming material of the material belt, thereby reducing the risk of wrinkles or even belt breakage due to defects in the incoming material of the material belt.

[0038] Optionally, the controller is also used to send a third adjustment instruction to the rolling mechanism 200 after receiving the defect signal, so that the rolling mechanism 200 adjusts the rolling gap 203, so that the size of the rolling gap 203 is adjusted due to defects in the incoming material of the material strip, thereby reducing the risk of wrinkles or even broken tape due to defects in the incoming material of the material strip.

[0039] It should be noted that when the visual inspection mechanism 300 detects that the incoming material of the material strip has defects such as cracks or breakages, the tension of the material strip, the conveying speed of the material strip and the rolling gap 203 are all adaptively adjusted under the control of the controller, or any two of the tension of the material strip, the conveying speed of the material strip and the rolling gap 203 are adaptively adjusted, or any one of the tension of the material strip, the conveying speed of the material strip and the rolling gap 203 is adaptively adjusted, as long as the risk of wrinkles or even breakage of the defective section of the material strip during rolling can be reduced, and no limitation is made here.

[0040] Thus, in actual use, when the visual inspection mechanism 300 detects defects such as cracks or breakages on the incoming material of the material strip, in order to reduce the risk of wrinkles or even breaks in the defective section of the material strip during the rolling process, the controller controls the conveying mechanism 100 to adjust the tension of the material strip, controls the conveying mechanism 100 to adjust the conveying speed of the material strip and / or controls the rolling mechanism 200 to adjust the rolling gap 203, so that the tension of the material strip, the conveying speed of the material strip and / or the rolling gap 203 are more suitable for rolling the defective section of the material strip, thereby greatly reducing the risk of wrinkles or even breaks due to defects in the material strip.

[0041] See also Figure 2 As shown, in the embodiment of the present application, the visual inspection mechanism 300 includes a first roller 301 and a first visual inspection member 302. The material strip A is wound from the first roller 301 toward one side of the first visual inspection member 302, and the first side surface A1 of the material strip A faces the first visual inspection member 302. The first visual inspection member 302 performs visual inspection on the first side surface A1 of the material strip A wound on the first roller 301. In this way, when the first visual inspection member 302 detects that there are defects such as cracks or damage on the first side surface A1 of the material strip A, under the control of the controller, the conveying mechanism 100 adjusts the tension of the material strip A, the conveying mechanism 100 adjusts the conveying speed of the material strip A, and / or the rolling mechanism 200 adjusts the rolling gap 203, so that the tension of the material strip A, the conveying speed of the material strip A, and / or the rolling gap 203 are more suitable for rolling the defective section of the material strip A, thereby greatly reducing the risk of wrinkles or even broken strips due to defects on the material strip A. Optionally, the first visual inspection component 302 may be an inspection camera.

[0042] Furthermore, the visual inspection mechanism 300 also includes a second roller 304 and a second visual inspection member 305. The material strip A is wound from the second roller 304 toward one side of the second visual inspection member 305, and the second side surface A2 of the material strip A faces the second visual inspection member 305. The second visual inspection member 305 performs visual inspection on the second side surface A2 of the material strip A wound on the second roller 304. In this way, when the second visual inspection member 305 detects that there are defects such as cracks or damage on the second side surface A2 of the material strip A, under the control of the controller, the conveying mechanism 100 adjusts the tension of the material strip A, the conveying mechanism 100 adjusts the conveying speed of the material strip A, and / or the rolling mechanism 200 adjusts the rolling gap 203, so that the tension of the material strip A, the conveying speed of the material strip A, and / or the rolling gap 203 are more suitable for rolling the defective section of the material strip A, thereby greatly reducing the risk of wrinkles or even broken strips due to defects on the material strip A. Optionally, the second visual detection component 305 may be a detection camera.

[0043] It should be noted that when at least one of the first visual inspection component 302 and the second visual inspection component 305 detects defects such as cracks or breakages on the material strip A, the controller will control the conveying mechanism 100 to adjust the tension of the material strip A, control the conveying mechanism 100 to adjust the conveying speed of the material strip A and / or control the rolling mechanism 200 to adjust the rolling gap 203.

[0044] Furthermore, the visual inspection mechanism 300 also includes a first light source 303 and a second light source 306. The first light source 303 is arranged toward the side of the first roller 301 around which the material belt A is wound, and is used to illuminate the material belt A wound on the first roller 301, so that the first visual inspection component 302 can image the first side surface A1 of the material belt A more clearly, which is conducive to improving the detection accuracy. The second light source 306 is arranged toward the side of the second roller 304 around which the material belt A is wound, and is used to illuminate the material belt A wound on the second roller 304, so that the second visual inspection component 305 can image the second side surface A2 of the material belt A more clearly, which is conducive to improving the detection accuracy.

[0045] Please continue to see Figure 1 As shown, in the embodiment of the present application, when the visual inspection mechanism 300 detects that there is a defect in the material belt, the controller controls the conveying mechanism 100 to reduce the tension of the material belt, controls the conveying mechanism 100 to reduce the conveying speed of the material belt, and / or controls the rolling mechanism 200 to increase the rolling gap 203. Optionally, when the visual inspection mechanism 300 detects that there is a crack on the material belt, under the control of the controller, the conveying mechanism 100 reduces the tension of the material belt by 20%, the conveying mechanism 100 reduces the conveying speed of the material belt by 50%, and / or the rolling mechanism 200 increases the rolling gap 203 by 3 μm.

[0046] It should be noted that when the visual inspection mechanism 300 detects that the defects on the material belt have disappeared, under the control of the controller, the conveying mechanism 100 restores the tension of the material belt to the level before adjustment, the conveying mechanism 100 restores the conveying speed of the material belt to the level before adjustment and / or the rolling mechanism 200 restores the rolling gap 203 to the level before adjustment.

[0047] Please see again Figure 1As shown, in an embodiment of the present application, the conveying mechanism 100 includes a first stretching assembly 101 and a second stretching assembly 102. The first stretching assembly 101 is arranged upstream of the rolling mechanism 200, and is used to pull the passing material belt to be conveyed downstream. The second stretching assembly 102 is arranged downstream of the rolling mechanism 200, and is used to pull the passing material belt to be conveyed downstream. In this way, the conveying speed and tension of the material belt are adjusted by the first stretching assembly 101 and the second stretching assembly 102, so that the material belt maintains a certain tension and a certain conveying speed for rolling processing at the rolling mechanism 200. Optionally, the above-mentioned visual inspection mechanism 300 is located between the first stretching assembly 101 and the rolling mechanism 200.

[0048] Specifically in the embodiment, the first stretching assembly 101 has a first active roller for the material belt passing through to pass through. The first active roller can be controlled to rotate around its own axis, so as to generate friction between the first active roller and the material belt, so that the material belt is transported downstream under the action of the friction. In this way, the tension and conveying speed of the material belt passing through the rolling mechanism 200 can be adjusted by controlling the rotation speed of the first active roller. Optionally, a rotating drive member such as a motor can be used to drive the first active roller to rotate.

[0049] Furthermore, the first stretching assembly 101 also includes a first pressing roller arranged opposite to the first active roller and rotatable around its own axis. The first pressing roller is used to press the passing material belt onto the first active roller, so that the material belt always keeps in contact with the first active roller. In this way, when the first active roller rotates, the first pressing roller presses the material belt onto the first active roller, thereby ensuring that friction is generated between the material belt and the first active roller, and then the material belt is driven to be transported downstream under the action of the friction force, and the first pressing roller is also driven to rotate in the direction opposite to the rotation direction of the first active roller.

[0050] Specifically in the embodiment, the second stretching assembly 102 has a second active roller for the material strip passing through to pass through. The second active roller can be controlled to rotate around its own axis, so that friction is generated between the second active roller and the material strip, and the material strip is transported downstream under the action of the friction. In this way, the tension and conveying speed of the material strip passing through the rolling mechanism 200 can be adjusted by controlling the rotation speed of the second active roller. Optionally, a rotating drive member such as a motor can be used to drive the second active roller to rotate.

[0051] Furthermore, the second stretching assembly 102 also includes a second pressing roller arranged opposite to the second active roller and rotatable around its own axis. The second pressing roller is used to press the passing material belt onto the second active roller, so that the material belt always keeps in contact with the second active roller. In this way, when the second active roller rotates, the second pressing roller presses the material belt onto the second active roller, thereby ensuring that friction is generated between the material belt and the second active roller, thereby driving the material belt to be transported downstream, and at the same time driving the second pressing roller to rotate in the direction opposite to the rotation direction of the second active roller.

[0052] Further, the controller is connected to the first stretching assembly 101 for controlling the first stretching assembly 101 to adjust the rotation speed of the first active roller according to the detection result of the visual detection mechanism 300. The controller is connected to the second stretching assembly 102 for controlling the second stretching assembly 102 to adjust the rotation speed of the second active roller according to the detection result of the visual detection mechanism 300.

[0053] In this way, when the visual inspection mechanism 300 detects defects such as cracks or breakages on the material strip and it is necessary to adjust the conveying speed of the material strip passing through the rolling mechanism 200, under the control of the controller, the first stretching component 101 adjusts the rotation speed of the first active roller, and at the same time the second stretching component 102 adjusts the rotation speed of the second active roller, so that the rotation speeds of the first active roller and the second active roller are reduced synchronously, thereby reducing the conveying speed of the material strip passing through the rolling mechanism 200, thereby achieving the purpose of adjusting the conveying speed of the material strip.

[0054] When the visual inspection mechanism 300 detects defects such as cracks or breakages on the material belt, and it is necessary to adjust the tension of the material belt passing through the rolling mechanism 200, under the control of the controller, the first stretching assembly 101 adjusts the speed of the first active roller to increase and then restore it to the original speed, and at the same time, the second stretching assembly 102 adjusts the speed of the second active roller to decrease and then restore it to the original speed, so that the tension of the material belt between the first active roller and the second active roller becomes loose, that is, the tension of the material belt passing through the rolling mechanism 200 is reduced. It should be noted that when adjusting the tension of the material belt, only the speed of the first active roller or the second active roller can be adjusted, or the speeds of the first active roller and the second active roller can be adjusted at the same time, as long as the tension of the material belt can be adjusted, it is not limited here.

[0055] Specifically in the embodiment, the conveying mechanism 100 further includes an unwinding assembly 103 arranged upstream of the first stretching assembly 101. The unwinding assembly 103 has an unwinding shaft for mounting a roll. The unwinding shaft can be controlled to rotate to unwind the output tape downstream. The controller is connected to the unwinding assembly 103 in communication to control the rotation speed of the unwinding shaft according to the detection result of the visual detection mechanism 300.

[0056] Specifically in the embodiment, the conveying mechanism 100 further includes a winding assembly 104 arranged downstream of the second stretching assembly 102. The winding assembly 104 has a winding shaft for mounting the material roll. The winding shaft can be controlled to rotate to wind up the material tape. The controller is connected to the unwinding assembly 103 in communication to control the rotation speed of the winding shaft according to the detection result of the visual detection mechanism 300.

[0057] In this way, when the visual inspection mechanism 300 detects defects such as cracks or breakages on the material strip, and thus needs to adjust the conveying speed of the material strip passing through the rolling mechanism 200, under the control of the controller, the first stretching component 101 adjusts the rotation speed of the first active roller to decrease, the second stretching component 102 adjusts the rotation speed of the second active roller to decrease, the unwinding component 103 adjusts the rotation speed of the unwinding shaft to decrease, and the winding component 104 adjusts the rotation speed of the winding shaft to decrease, thereby reducing the conveying speed of the material strip passing through the rolling mechanism 200.

[0058] In the embodiment of the present application, the rolling mechanism 200 includes a frame, a first mounting seat, a first pressing roller 201, a second mounting seat and a second pressing roller 202. The first mounting seat and the second mounting seat are both arranged on the frame, the first pressing roller 201 is rotatably connected to the first mounting seat, and the second pressing roller 202 is rotatably connected to the second mounting seat. The above-mentioned rolling gap 203 is formed between the first pressing roller 201 and the second pressing roller 202. The first mounting seat can be controlled to move relative to the frame to drive the first pressing roller 201 to approach or move away from the second pressing roller 202, so as to adjust the size of the rolling gap 203. In this way, when the material strip passes through the rolling gap 203, it is compacted and thinned under the extrusion of the first pressing roller 201 and the second pressing roller 202, that is, the rolling of the material strip is achieved.

[0059] Furthermore, the controller is connected to the rolling mechanism 200 for communication, so as to control the rolling mechanism 200 to drive the first mounting seat to move according to the detection result of the visual detection mechanism 300, thereby driving the first pressing roller 201 to move away from the second pressing roller 202, thereby achieving the purpose of increasing the rolling gap 203, that is, realizing the adjustment of the rolling gap 203. Furthermore, the controller is also used to control the rolling mechanism 200 to adjust the rotation speed of the first pressing roller 201 and the second pressing roller 202 according to the detection result of the visual detection mechanism 300, so as to cooperate to achieve the adjustment of the conveying speed of the material belt. It should be noted that the rotation of the first pressing roller 201 and the second pressing roller 202 can be driven by a motor, and the movement of the first mounting seat relative to the frame can be driven by a linear drive module.

[0060] In this way, when the visual inspection mechanism 300 detects defects such as cracks or breakage on the material belt, and it is necessary to adjust the conveying speed of the material belt passing through the roller pressing mechanism 200, under the control of the controller, the first stretching assembly 101 adjusts the speed of the first active roller to reduce, the second stretching assembly 102 adjusts the speed of the second active roller to reduce, the unwinding assembly 103 adjusts the speed of the unwinding shaft to reduce, the winding assembly 104 adjusts the speed of the winding shaft to reduce, and the roller pressing mechanism 200 adjusts the speed of the first pressure roller 201 and the second pressure roller 202 to reduce, so that the conveying speed of the material belt passing through the roller pressing mechanism 200 is reduced, and the purpose of adjusting the conveying speed of the material belt is achieved. In other words, when adjusting the conveying speed of the material belt passing through the roller pressing mechanism 200, it is necessary to synchronously adjust the speed of the unwinding shaft of the unwinding assembly 103, the speed of the first active roller of the first stretching assembly 101, the speed of the first pressure roller 201 and the second pressure roller 202, the speed of the second active roller of the second stretching assembly 102, and the speed of the winding shaft of the winding assembly 104. When adjusting the tension of the material strip passing through the rolling mechanism 200 , it is only necessary to adjust the rotation speed of the first active roller of the first stretching assembly 101 and / or the rotation speed of the second active roller of the second stretching assembly 102 .

[0061] Please continue to see Figure 1 As shown, in the embodiment of the present application, the rolling device further includes a preheating mechanism 400 arranged between the visual inspection mechanism 300 and the rolling mechanism 200. The preheating mechanism 400 is used to preheat the passing material strip. The rolling device further includes a cooling mechanism 600 arranged between the rolling mechanism 200 and the winding assembly 104, and the cooling mechanism 600 is used to cool the passing material strip.

[0062] In this way, the material strip preheated by the preheating mechanism 400 continues to move downstream to the rolling mechanism 200, which rolls the material strip, and the material strip after rolling continues to move downstream to the cooling mechanism 600, which cools the material strip. In other words, the material strip is preheated before rolling, so that the temperature of the material strip is increased so that the temperature of the material strip meets the process requirements during rolling. The material strip is cooled again after rolling, so that the material strip after rolling is cooled and shaped.

[0063] Furthermore, the rolling device also includes a thickness gauge 500 arranged between the cooling mechanism 600 and the winding assembly 104, and the thickness gauge 500 is used to detect the thickness of the cooled material strip, so as to determine whether the thickness of the material strip meets the process requirements.

[0064] Combine the following Figure 1 The working process of the roller pressing device is described as follows:

[0065] The unwinding shaft of the unwinding assembly 103 rotates to unwind the material strip downstream. The material strip passes through the first active roller of the first stretching assembly 101, the first roller 301 and the second roller 304 of the visual inspection mechanism 300, the preheating mechanism 400, the rolling gap 203 of the rolling mechanism 200, the cooling mechanism 600 and the thickness gauge 500 in sequence, and is finally rolled up on the winding shaft by the winding assembly 104.

[0066] When the visual inspection mechanism 300 detects defects such as cracks or breakages on the material strip, the visual inspection mechanism 300 transmits the defect signal to the controller. After receiving the defect signal, the controller controls the first stretching assembly 101 and the second stretching assembly 102 to cooperate to reduce the tension of the material strip passing through the rolling mechanism 200, and controls the unwinding assembly 103, the first stretching assembly 101, the rolling mechanism 200, the second stretching assembly 102 and the winding mechanism to cooperate to reduce the conveying speed of the material strip, and controls the rolling mechanism 200 to increase the rolling gap 203. Of course, in other embodiments, only one or two of the tension of the material strip, the conveying speed of the material strip and the rolling gap 203 can be adjusted, as long as the risk of wrinkles or even broken strips in the section of the material strip with defects such as cracks or breakages during rolling can be reduced, and this is not limited here.

[0067] The process of adjusting the tension of the material strip: the first stretching component 101 controls the rotation speed of the first active roller to increase and then restore to the original rotation speed. At the same time, the second stretching component 102 controls the rotation speed of the second active roller to decrease and then restore to the original rotation speed, thereby loosening the tension of the material strip between the first active roller and the second active roller, that is, the tension of the material strip passing through the rolling mechanism 200 is reduced.

[0068] The process of adjusting the conveying speed of the material belt: the first stretching component 101 controls the rotation speed of the first active roller to decrease, the second stretching component 102 controls the rotation speed of the second active roller to also decrease, the unwinding component 103 controls the rotation speed of the unwinding shaft to also decrease, the winding component 104 controls the rotation speed of the winding shaft to also decrease, and the rolling mechanism 200 controls the rotation speed of the first pressing roller 201 and the second pressing roller 202 to also decrease, thereby reducing the conveying speed of the material belt.

[0069] The process of adjusting the rolling gap 203: the rolling mechanism 200 controls the first mounting seat to move relative to the frame, so that the first mounting seat drives the first pressing roller 201 to move away from the first pressing roller 201, so that the rolling gap 203 between the first pressing roller 201 and the second pressing roller 202 increases.

[0070] When the visual inspection mechanism 300 detects that the defects on the material strip disappear, the visual inspection mechanism 300 transmits a normal signal to the controller. After receiving the normal signal, the controller controls the first stretching assembly 101 and the second stretching assembly 102 to cooperate to restore the tension of the material strip passing through the rolling mechanism 200 to the value before adjustment, and controls the unwinding assembly 103, the first stretching assembly 101, the rolling mechanism 200, the second stretching assembly 102 and the winding assembly 104 to cooperate to restore the conveying speed of the material strip to the value before adjustment, and controls the rolling mechanism 200 to restore the rolling gap 203 to the value before adjustment.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A rolling device, characterized in that: include: A conveying mechanism (100) for conveying a material belt; A rolling mechanism (200) is arranged on the conveying path of the material strip, the rolling mechanism (200) has a rolling gap (203) for the material strip to pass through, the size of the rolling gap (203) is adjustable, and the rolling mechanism (200) is used to roll the material strip passing through the rolling gap (203); A visual inspection mechanism (300) is arranged upstream of the rolling mechanism (200) and is used to perform visual inspection on the material strip passing through; and A controller is communicatively connected with the visual inspection mechanism (300) and the conveying mechanism (100); when the visual inspection mechanism (300) detects that the material belt has defects, the controller controls the conveying mechanism (100) to adjust the tension of the material belt, controls the conveying mechanism (100) to adjust the conveying speed of the material belt and / or controls the rolling mechanism (200) to adjust the rolling gap (203).

2. The rolling device according to claim 1, characterized in that: The visual inspection mechanism (300) includes a first roller (301) and a first visual inspection component (302), the material strip is wound from the first roller (301) toward one side of the first visual inspection component (302), and the first side surface of the material strip faces the first visual inspection component (302), and the first visual inspection component (302) performs visual inspection on the first side surface of the material strip wound on the first roller (301).

3. The rolling device according to claim 2, characterized in that: The visual inspection mechanism (300) further includes a second roller (304) and a second visual inspection component (305), the material strip is wound around the second roller (304) toward one side of the second visual inspection component (305), and the second side surface of the material strip faces the second visual inspection component (305), and the second visual inspection component (305) performs visual inspection on the second side surface of the material strip wound around the second roller (304).

4. The rolling device according to claim 3, characterized in that: The visual inspection mechanism (300) further comprises a first light source (303) and a second light source (306), wherein the first light source (303) is arranged facing the side of the first roller (301) around which the material tape is wound, and is used for illuminating the material tape wound around the first roller (301); and the second light source (306) is arranged facing the side of the second roller (304) around which the material tape is wound, and is used for illuminating the material tape wound around the second roller (304).

5. The rolling device according to any one of claims 1 to 4, characterized in that: When the visual inspection mechanism (300) detects that the material belt has defects, the controller controls the conveying mechanism (100) to reduce the tension of the material belt, controls the conveying mechanism (100) to reduce the conveying speed of the material belt, and / or controls the rolling mechanism (200) to increase the rolling gap (203).

6. The rolling device according to any one of claims 1 to 4, characterized in that: The conveying mechanism (100) comprises a first stretching component (101) and a second stretching component (102), wherein the first stretching component (101) is arranged upstream of the rolling mechanism (200) and is used for pulling the material belt passing through and conveying it downstream; and the second stretching component (102) is arranged downstream of the rolling mechanism (200) and is used for pulling the material belt passing through and conveying it downstream.

7. The rolling device according to claim 6, characterized in that: The first stretching component (101) has a first active roller for the passing material strip to pass around, and the first active roller can be controlled to rotate around its own axis to drive the material strip to be transported downstream; the controller is communicatively connected to the first stretching component (101) to control the rotation speed of the first active roller according to the detection result of the visual detection mechanism (300).

8. The rolling device according to claim 6, characterized in that: The second stretching assembly (102) has a second active roller, the second active roller is for the material strip passing through to be wound around, and can be controlled to rotate around its own axis to drive the material strip to be transported downstream; The controller is in communication connection with the second stretching assembly (102) so as to control the rotation speed of the second active roller according to the detection result of the visual detection mechanism (300).

9. The rolling device according to claim 6, characterized in that: The conveying mechanism (100) further comprises an unwinding assembly (103) arranged upstream of the first stretching assembly (101), wherein the unwinding assembly (103) comprises an unwinding shaft for mounting a material roll, and the unwinding shaft can be controlled to rotate so as to unwind and output the material tape downstream; The controller is in communication connection with the unwinding assembly (103) so as to control the rotation speed of the unwinding shaft according to the detection result of the visual detection mechanism (300).

10. The rolling device according to claim 6, characterized in that: The conveying mechanism (100) further comprises a winding assembly (104) arranged downstream of the second stretching assembly (102), wherein the winding assembly (104) comprises a winding shaft for mounting a material roll, and the winding shaft can be controlled to rotate to wind up the material strip; The controller is in communication connection with the winding assembly (104) so ​​as to control the rotation speed of the winding shaft according to the detection result of the visual detection mechanism (300).

11. The rolling device according to any one of claims 1 to 4, characterized in that: The rolling mechanism (200) comprises a frame, a first mounting seat, a first pressing roller (201), a second mounting seat and a second pressing roller (202); The first mounting seat and the second mounting seat are both arranged on the frame, the first pressing roller (201) is rotatably connected to the first mounting seat, the second pressing roller (202) is rotatably connected to the second mounting seat, the rolling gap (203) is formed between the first pressing roller (201) and the second pressing roller (202), and the first mounting seat can be controlled to move relative to the frame to drive the first pressing roller (201) to approach or move away from the second pressing roller (202); The controller is communicatively connected to the rolling mechanism (200) so as to control the rolling mechanism (200) to drive the first mounting seat to move according to the detection result of the visual detection mechanism (300).

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