Rolling device

Abstract

The utility model relates to a rolling device. The rolling device comprises a conveying mechanism used for conveying a material belt according to a preset path; 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 thickness detection mechanism is arranged at the upstream of the rolling mechanism and is used for detecting the thickness of the passing material belt; and the controller is in communication connection with the thickness detection mechanism and the conveying mechanism, and the controller is used for controlling the conveying mechanism to adjust the tension of the material belt, controlling the conveying mechanism to adjust the conveying speed of the material belt and / or controlling the rolling mechanism to adjust the rolling gap according to the detection result of the thickness detection mechanism.

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 thickness detection mechanism, arranged upstream of the rolling mechanism, for detecting the thickness of the material strip passing through; and

[0009] A controller is communicatively connected with the thickness detection mechanism and the conveying mechanism, and the controller is used to control the conveying mechanism to adjust the tension of the material belt, control the conveying mechanism to adjust the conveying speed of the material belt and / or control the rolling mechanism to adjust the rolling gap according to the detection result of the thickness detection mechanism.

[0010] In one of the embodiments, when the thickness detection mechanism detects that the thickness value of the passing material belt is greater than or less than a preset range, 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.

[0011] In one embodiment, the conveying mechanism includes a first stretching assembly and a second stretching assembly. 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.

[0012] In one embodiment, the first stretching assembly has a first active roller for the passing material strip to wind around, and the first active roller can be controlled to rotate around its own axis to drive the material strip to be transported downstream;

[0013] The controller is in communication connection with the first stretching assembly to control the rotation speed of the first active roller according to the detection result of the thickness detection mechanism.

[0014] 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;

[0015] 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 thickness detection mechanism.

[0016] 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;

[0017] 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 thickness detection mechanism.

[0018] 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;

[0019] 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 thickness detection mechanism.

[0020] 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;

[0021] 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;

[0022] 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 thickness detection mechanism.

[0023] In one of the embodiments, the thickness detection mechanism has a first distance measuring sensor and a second distance measuring sensor;

[0024] A measuring channel for the material strip to pass through is formed between the first distance measuring sensor and the second distance measuring sensor, the first distance measuring sensor is used to detect the distance between the first distance measuring sensor and the material strip passing through the measuring channel, and the second distance measuring sensor is used to detect the distance between the second distance measuring sensor and the material strip passing through the measuring channel;

[0025] The thickness detection mechanism obtains the thickness of the material strip passing through the measurement channel according to the measurement results of the first distance measuring sensor and the measurement results of the second distance measuring sensor.

[0026] In one of the embodiments, the rolling device further comprises a preheating mechanism arranged between the thickness detection mechanism and the rolling mechanism, and the preheating mechanism is used to preheat the material strip passing through;

[0027] The rolling device further includes a cooling mechanism disposed on the downstream side of the rolling mechanism, and the cooling mechanism is used to cool the material strip passing through.

[0028] In actual use of the above-mentioned rolling device, when the thickness detection mechanism detects that the thickness of the material strip is abnormal, in order to reduce the risk of wrinkles or even breakage in the abnormal thickness section of the material strip during the rolling process, the controller can control the conveying mechanism to adjust the tension of the material strip. The controller can also control the conveying mechanism to adjust the conveying speed of the material strip. The controller can also control the rolling mechanism to adjust 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 processing in the abnormal thickness area of ​​the material strip, thereby reducing the risk of wrinkles or even breakage due to the abnormal thickness of the material strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a roller pressing device in one embodiment of the utility model;

[0030] Figure 2 for Figure 1 The schematic diagram of the structure of the thickness detection mechanism of the rolling device is shown. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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 and even broken strips often occur on the material strip. In long-term practice, the inventors found that the incoming material of the material strip has a large fluctuation in thickness (that is, the thickness of the incoming material exceeds the range required by the process, which is an abnormal thickness). Since the process parameters of the rolling device are set according to the fluctuation of the thickness of the material strip within the normal range, when the thickness of the incoming material of the material strip is abnormal, the abnormal thickness section of the material strip and the process parameters of the rolling device are not compatible with each other, resulting in wrinkles and even broken strips when the abnormal thickness section of the material strip is rolled.

[0038] Based on the above defects, the inventor of this application creatively proposed: when the thickness of the material strip is abnormal, 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 a described below), so that the adjusted process parameters are more suitable for the rolling process of the section with abnormal thickness of the material strip, thereby greatly reducing the risk of wrinkles or even broken strips when the section with abnormal thickness of the material strip is rolled. It should be noted that the material strip in this article can be a pole piece, and of course it can also be other types of material strips, which are not limited here.

[0039] See also Figure 1, an embodiment of the present application provides a rolling device, including a conveying mechanism 10, a rolling mechanism 20, a thickness detection mechanism 30 and a controller. The conveying mechanism 10 is used to convey the material belt according to a preset path, and control the tension of the material belt and the conveying speed of the material belt. The rolling mechanism 20 is arranged on the conveying path of the material belt, and the rolling mechanism 20 has a rolling gap a through which the material belt passes, and the size of the rolling gap a is adjustable. The rolling mechanism 20 is used to roll the material belt passing through the rolling gap a. The thickness detection mechanism 30 is arranged upstream of the rolling mechanism 20, and is used to detect the thickness of the material belt passing through. The controller is connected to the thickness detection mechanism 30 and the conveying mechanism 10 in communication. The controller is used to control the conveying mechanism 10 to adjust the tension of the material belt according to the detection result of the thickness detection mechanism 30, so that the tension of the material belt is adaptively adjusted due to the abnormal thickness of the material belt, thereby reducing the risk of wrinkles or even broken belts due to the abnormal thickness of the material belt. Optionally, the controller can use an industrial computer.

[0040] In this way, in actual use, when the thickness detection mechanism 30 detects that the thickness of the material belt is abnormal, in order to reduce the risk of wrinkles or even breaks in the abnormal thickness section of the material belt during the rolling process, the controller controls the conveying mechanism 10 to adjust the tension of the material belt, so that the tension of the material belt is more suitable for rolling the abnormal thickness section of the material belt, thereby greatly reducing the risk of wrinkles or even breaks due to abnormal thickness.

[0041] Optionally, the controller is also used to control the conveying mechanism 10 to adjust the conveying speed of the material belt according to the detection results of the thickness detection mechanism 30, so that the conveying speed of the material belt is adjusted due to abnormal material belt thickness, thereby reducing the risk of wrinkles or even belt breakage due to abnormal material belt thickness.

[0042] Optionally, the controller is also used to control the rolling mechanism 20 to adjust the size of the rolling gap a according to the detection results of the thickness detection mechanism 30, so that the size of the rolling gap a is adjusted due to abnormal thickness of the material strip, thereby reducing the risk of wrinkles or even broken strips due to abnormal thickness of the material strip.

[0043] It should be noted that when the thickness detection mechanism 30 detects that the thickness of the material strip is abnormal, the tension of the material strip, the conveying speed of the material strip and the rolling gap a 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 a are adjusted, or any one of the tension of the material strip, the conveying speed of the material strip and the rolling gap a is adjusted, as long as the risk of wrinkles or even breakage in the abnormal thickness section of the material strip during rolling can be reduced, and no limitation is made here.

[0044] Specifically in the embodiment, when the thickness detection mechanism 30 detects that the thickness of the material belt passing through is greater than or less than a preset range, it indicates that the thickness of the material belt is abnormal. At this time, the controller controls the conveying mechanism 10 to reduce the tension of the material belt, controls the conveying mechanism 10 to reduce the conveying speed of the material belt, and / or controls the rolling mechanism 20 to increase the rolling gap a. Optionally, the preset range can be D±3μm, where D is the nominal value of the thickness of the material belt. When the thickness detection mechanism 30 detects that the thickness of the material belt is D±4μm, under the control of the controller, the conveying mechanism 10 adjusts the tension of the material belt to reduce by 20%, the conveying mechanism 10 adjusts the conveying speed of the material belt to reduce by 10%, and / or the rolling mechanism 20 adjusts the rolling gap a to increase by 2μm.

[0045] It should be noted that when the thickness detection mechanism 30 detects that the thickness of the material belt has returned to the preset range, under the control of the controller, the conveying mechanism 10 restores the tension of the material belt to the level before adjustment, the conveying mechanism 10 restores the conveying speed of the material belt to the level before adjustment and / or the rolling mechanism 20 restores the size of the rolling gap a to the level before adjustment.

[0046] In the embodiment of the present application, the conveying mechanism 10 includes a first stretching assembly 11 and a second stretching assembly 12. The first stretching assembly 11 is arranged upstream of the rolling mechanism 20, and is used to pull the passing material belt to be conveyed downstream. The second stretching assembly 12 is arranged downstream of the rolling mechanism 20, 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 11 and the second stretching assembly 12, so that the material belt maintains a certain tension and a certain conveying speed for rolling processing at the rolling mechanism 20.

[0047] Specifically in the embodiment, the first stretching assembly 11 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 20 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.

[0048] Furthermore, the first stretching assembly 11 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.

[0049] Specifically in the embodiment, the second stretching assembly 12 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 20 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.

[0050] Furthermore, the second stretching assembly 12 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.

[0051] Further, the controller is connected in communication with the first stretching assembly 11 to control the first stretching assembly 11 to adjust the rotation speed of the first active roller according to the detection result of the thickness detection mechanism 30. The controller is connected in communication with the second stretching assembly 12 to control the second stretching assembly 12 to adjust the rotation speed of the second active roller according to the detection result of the thickness detection mechanism 30.

[0052] In this way, when the thickness detection mechanism 30 detects that the thickness of the material strip is abnormal and it is necessary to adjust the conveying speed of the material strip passing through the roller pressing mechanism 20, under the control of the controller, the first stretching component 11 adjusts the rotation speed of the first active roller, and at the same time the second stretching component 12 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 roller pressing mechanism 20, thereby achieving the purpose of adjusting the conveying speed of the material strip.

[0053] When the thickness detection mechanism 30 detects that the thickness of the material strip is abnormal and it is necessary to adjust the tension of the material strip passing through the roller pressing mechanism 20, under the control of the controller, the first stretching assembly 11 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 12 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 strip between the first active roller and the second active roller becomes loose, that is, the tension of the material strip passing through the roller pressing mechanism 20 is reduced. It should be noted that when adjusting the tension of the material strip, 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 strip can be adjusted, it is not limited here.

[0054] Specifically in the embodiment, the conveying mechanism 10 further includes an unwinding assembly 13 arranged upstream of the first stretching assembly 11. The unwinding assembly 13 has an unwinding shaft for mounting a material roll. The unwinding shaft can be controlled to rotate to unwind and output the material tape downstream. The controller is in communication connection with the unwinding assembly 13 to control the rotation speed of the unwinding shaft according to the detection result of the thickness detection mechanism 30.

[0055] Specifically in the embodiment, the conveying mechanism 10 further includes a winding assembly 14 arranged downstream of the second stretching assembly 12. The winding assembly 14 has a winding shaft for mounting the material roll. The winding shaft can be controlled to rotate to wind up the material strip. The controller is connected to the unwinding assembly 13 in communication to control the rotation speed of the winding shaft according to the detection result of the thickness detection mechanism 30.

[0056] In this way, when the thickness detection mechanism 30 detects that the thickness of the material strip is abnormal, and it is necessary to adjust the conveying speed of the material strip passing through the roller pressing mechanism 20, under the control of the controller, the first stretching component 11 adjusts the rotation speed of the first active roller to decrease, the second stretching component 12 adjusts the rotation speed of the second active roller to decrease, the unwinding component 13 adjusts the rotation speed of the unwinding shaft to decrease, and the winding component 14 adjusts the rotation speed of the winding shaft to decrease, thereby reducing the conveying speed of the material strip passing through the roller pressing mechanism 20.

[0057] In an embodiment of the present application, the rolling mechanism 20 includes a frame, a first mounting seat, a first pressing roller 21, a second mounting seat and a second pressing roller 22. The first mounting seat and the second mounting seat are both arranged on the frame, the first pressing roller 21 is rotatably connected to the first mounting seat, and the second pressing roller 22 is rotatably connected to the second mounting seat. The above-mentioned rolling gap a is formed between the first pressing roller 21 and the second pressing roller 22. The first mounting seat can be controlled to move relative to the frame to drive the first pressing roller 21 to approach or move away from the second pressing roller 22, so as to adjust the size of the rolling gap a. In this way, when the material strip passes through the rolling gap a, it is compacted and thinned under the extrusion of the first pressing roller 21 and the second pressing roller 22, that is, the rolling of the material strip is achieved.

[0058] Furthermore, the controller is connected to the rolling mechanism 20 for communication, so as to control the rolling mechanism 20 to drive the first mounting seat to move according to the detection result of the thickness detection mechanism 30, thereby driving the first pressing roller 21 to move away from the second pressing roller 22, thereby achieving the purpose of increasing the rolling gap a, that is, realizing the adjustment of the size of the rolling gap a. Furthermore, the controller is also used to control the rolling mechanism 20 to adjust the rotation speed of the first pressing roller 21 and the second pressing roller 22 according to the detection result of the thickness detection mechanism 30, 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 21 and the second pressing roller 22 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.

[0059] In this way, when the thickness detection mechanism 30 detects that the thickness of the material strip is abnormal and it is necessary to adjust the conveying speed of the material strip passing through the roller pressing mechanism 20, under the control of the controller, the first stretching assembly 11 adjusts the speed of the first active roller to reduce, the second stretching assembly 12 adjusts the speed of the second active roller to reduce, the unwinding assembly 13 adjusts the speed of the unwinding shaft to reduce, the winding assembly 14 adjusts the speed of the winding shaft to reduce, and the roller pressing mechanism 20 adjusts the speed of the first pressing roller 21 and the second pressing roller 22 to reduce, so that the conveying speed of the material strip passing through the roller pressing mechanism 20 is reduced, and the purpose of adjusting the conveying speed of the material strip is achieved. In other words, when adjusting the conveying speed of the material strip passing through the roller pressing mechanism 20, it is necessary to synchronously adjust the speed of the unwinding shaft of the unwinding assembly 13, the speed of the first active roller of the first stretching assembly 11, the speed of the first pressing roller 21 and the second pressing roller 22, the speed of the second active roller of the second stretching assembly 12, and the speed of the winding shaft of the winding assembly 14. When adjusting the tension of the material strip passing through the rolling mechanism 20 , it is only necessary to adjust the rotation speed of the first active roller of the first stretching assembly 11 and / or the rotation speed of the second active roller of the second stretching assembly 12 .

[0060] See also Figure 2 As shown, in the embodiment of the present application, the thickness detection mechanism 30 has a first distance measuring sensor 31 and a second distance measuring sensor 32. A measurement channel through which the supply tape A passes is formed between the first distance measuring sensor 31 and the second distance measuring sensor 32. The first distance measuring sensor 31 is used to detect the distance between the first distance measuring sensor 31 and the tape A passing through the measurement channel. The second distance measuring sensor 32 is used to detect the distance between the second distance measuring sensor 32 and the tape A passing through the measurement channel. The thickness detection mechanism 30 obtains the thickness of the tape A passing through according to the measurement results of the first distance measuring sensor 31 and the measurement results of the second distance measuring sensor 32. In this way, the distance between the first distance measuring sensor 31 and the second distance measuring sensor 32 is T, the distance between the first distance measuring sensor 31 and the tape A passing through the measurement channel is D1, and the distance between the second distance measuring sensor 32 and the tape A passing through the measurement channel is D2, then the thickness D0 of the tape A passing through the measurement channel is D0=T-D1-D2.

[0061] Specific to Figure 2 In the illustrated embodiment, the first distance measuring sensor 31 is located above the material strip A, and the second distance measuring sensor 32 is located below the material strip A. The first distance measuring sensor 31 is used to detect the distance D1 between the first distance measuring sensor 31 and the upper surface of the material strip A, and the second distance measuring sensor 32 is used to detect the distance D2 between the second distance measuring sensor 32 and the lower surface of the material strip A.

[0062] Optionally, the first distance measuring sensor 31 and the second distance measuring sensor 32 may be laser sensors. Of course, in other embodiments, the first distance measuring sensor 31 and the second distance measuring sensor 32 may also be other types of sensors, as long as they can measure the distance from the material strip, which is not limited here.

[0063] Please continue to see Figure 1 As shown, in the embodiment of the present application, the rolling device further includes a preheating mechanism 40 arranged between the thickness detection mechanism 30 and the rolling mechanism 20. The preheating mechanism 40 is used to preheat the passing material strip. The rolling device further includes a cooling mechanism 50 arranged between the rolling mechanism 20 and the winding assembly 14, and the cooling mechanism 50 is used to cool the passing material strip.

[0064] In this way, the material strip preheated by the preheating mechanism 40 continues to move downstream to the rolling mechanism 20, which rolls the material strip, and the material strip after rolling continues to move downstream to the cooling mechanism 50, 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.

[0065] Furthermore, the rolling device also includes a thickness gauge 60 arranged between the cooling mechanism 50 and the winding assembly 14, and the thickness gauge 60 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.

[0066] Combine the following Figure 1 The working process of the roller pressing device is described as follows:

[0067] The unwinding shaft of the unwinding assembly 13 rotates to unwind the material strip downstream. The material strip passes through the first active roller of the first stretching assembly 11, between the first distance sensor 31 and the second distance sensor 32 of the thickness detection mechanism 30, the preheating mechanism 40, the rolling gap a of the rolling mechanism 20, the cooling mechanism 50 and the thickness gauge 60, and is finally rolled up on the winding shaft by the winding assembly 14.

[0068] When the thickness detection mechanism 30 detects that the thickness of the material strip is abnormal (too thick or too thin), the thickness detection mechanism 30 transmits the abnormal signal to the controller. After receiving the abnormal signal, the controller controls the first stretching assembly 11 and the second stretching assembly 12 to cooperate to reduce the tension of the material strip passing through the rolling mechanism 20, and controls the unwinding assembly 13, the first stretching assembly 11, the rolling mechanism 20, the second stretching assembly 12 and the winding mechanism to cooperate to reduce the conveying speed of the material strip, and controls the rolling mechanism 20 to increase the rolling gap a. 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 a can be adjusted, as long as the risk of wrinkles or even broken strips in the abnormal thickness section of the material strip during rolling can be reduced, and this is not limited here.

[0069] The process of adjusting the tension of the material strip: the first stretching component 11 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 12 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 20 is reduced.

[0070] The process of adjusting the conveying speed of the material belt: the first stretching component 11 controls the rotation speed of the first active roller to decrease, the second stretching component 12 controls the rotation speed of the second active roller to also decrease, the unwinding component 13 controls the rotation speed of the unwinding shaft to also decrease, the winding component 14 controls the rotation speed of the winding shaft to also decrease, and the roller pressing mechanism 20 controls the rotation speed of the first pressing roller 21 and the second pressing roller 22 to also decrease, thereby reducing the conveying speed of the material belt.

[0071] The process of adjusting the rolling gap a: the rolling mechanism 20 controls the first mounting seat to move relative to the frame, so that the first mounting seat drives the first pressing roller 21 to move away from the first pressing roller 21, so that the rolling gap a between the first pressing roller 21 and the second pressing roller 22 increases.

[0072] When the thickness detection mechanism 30 detects that the thickness of the material strip is normal, the thickness detection mechanism 30 transmits a thickness normal signal to the controller. After receiving the thickness normal signal, the controller controls the first stretching assembly 11 and the second stretching assembly 12 to cooperate to restore the tension of the material strip passing through the rolling mechanism 20 to the value before adjustment, and controls the unwinding assembly 13, the first stretching assembly 11, the rolling mechanism 20, the second stretching assembly 12 and the winding assembly 14 to cooperate to restore the conveying speed of the material strip to the value before adjustment, and controls the rolling mechanism 20 to restore the rolling gap a to the value before adjustment.

[0073] 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.

[0074] 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 (10) for conveying a material belt; A rolling mechanism (20) is arranged on the conveying path of the material strip, the rolling mechanism (20) has a rolling gap (a) for the material strip to pass through, the size of the rolling gap (a) is adjustable, and the rolling mechanism (20) is used to roll the material strip passing through the rolling gap (a); A thickness detection mechanism (30) is arranged upstream of the rolling mechanism (20) and is used to detect the thickness of the material strip passing through; and A controller is communicatively connected with the thickness detection mechanism (30) and the conveying mechanism (10), and the controller is used to control the conveying mechanism (10) to adjust the tension of the material belt, control the conveying mechanism (10) to adjust the conveying speed of the material belt and / or control the rolling mechanism (20) to adjust the rolling gap (a) according to the detection result of the thickness detection mechanism (30).

2. The rolling device according to claim 1, characterized in that: When the thickness detection mechanism (30) detects that the thickness of the material belt passing through is greater than or less than a preset range, the controller controls the conveying mechanism (10) to adjust the tension of the material belt to decrease, controls the conveying mechanism (10) to adjust the conveying speed of the material belt to decrease, and / or controls the rolling mechanism (20) to adjust the rolling gap (a) to increase.

3. The rolling device according to claim 1, characterized in that: The conveying mechanism (10) comprises a first stretching component (11) and a second stretching component (12), wherein the first stretching component (11) is arranged upstream of the rolling mechanism (20) and is used for pulling the material belt passing through and conveying it downstream; and the second stretching component (12) is arranged downstream of the rolling mechanism (20) and is used for pulling the material belt passing through and conveying it downstream.

4. The rolling device according to claim 3, characterized in that: The first stretching assembly (11) 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 assembly (11) to control the rotation speed of the first active roller according to the detection result of the thickness detection mechanism (30).

5. The rolling device according to claim 3, characterized in that: The second stretching assembly (12) 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 communicatively connected to the second stretching assembly (12) to control the rotation speed of the second active roller according to the detection result of the thickness detection mechanism (30).

6. The rolling device according to claim 3, characterized in that: The conveying mechanism (10) further comprises an unwinding assembly (13) arranged upstream of the first stretching assembly (11), wherein the unwinding assembly (13) 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 (13) so as to control the rotation speed of the unwinding shaft according to the detection result of the thickness detection mechanism (30).

7. The rolling device according to claim 3, characterized in that: The conveying mechanism (10) further comprises a winding assembly (14) arranged downstream of the second stretching assembly (12), wherein the winding assembly (14) 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 (14) so ​​as to control the rotation speed of the winding shaft according to the detection result of the thickness detection mechanism (30).

8. The rolling device according to any one of claims 1 to 7, characterized in that: The rolling mechanism (20) comprises a frame, a first mounting seat, a first pressing roller (21), a second mounting seat and a second pressing roller (22); The first mounting seat and the second mounting seat are both arranged on the frame, the first pressing roller (21) is rotatably connected to the first mounting seat, the second pressing roller (22) is rotatably connected to the second mounting seat, the rolling gap (a) is formed between the first pressing roller (21) and the second pressing roller (22), and the first mounting seat can be controlled to move relative to the frame to drive the first pressing roller (21) to approach or move away from the second pressing roller (22); The controller is communicatively connected to the rolling mechanism (20) so as to control the rolling mechanism (20) to drive the first mounting seat to move according to the detection result of the thickness detection mechanism (30).

9. The rolling device according to any one of claims 1 to 7, characterized in that: The thickness detection mechanism (30) comprises a first distance measuring sensor (31) and a second distance measuring sensor (32); A measuring channel for the material strip to pass through is formed between the first distance measuring sensor (31) and the second distance measuring sensor (32), the first distance measuring sensor (31) being used to detect the distance between the first distance measuring sensor (31) and the material strip passing through the measuring channel, and the second distance measuring sensor (32) being used to detect the distance between the second distance measuring sensor (32) and the material strip passing through the measuring channel; The thickness detection mechanism (30) obtains the thickness of the material strip passing through the measurement channel according to the measurement result of the first distance measuring sensor (31) and the measurement result of the second distance measuring sensor (32).

10. The rolling device according to any one of claims 1 to 7, characterized in that: The rolling device further comprises a preheating mechanism (40) arranged between the thickness detection mechanism (30) and the rolling mechanism (20), wherein the preheating mechanism (40) is used to preheat the material strip passing through; The rolling device further comprises a cooling mechanism (50) arranged on the downstream side of the rolling mechanism (20), and the cooling mechanism (50) is used to cool the material strip passing through.

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