Thermal rolling device

Abstract

This application discloses a thermal rolling device, comprising a frame, thermal rolling rollers, and a gap correction device. The frame has an inlet opening, which is used to feed the electrode sheets and the separation membrane. The thermal rolling rollers are arranged on the frame and are used to hot-roll the electrode sheets and the separation membrane. The gap correction device is arranged on the side of the frame's inlet opening and includes a visual inspection mechanism, a rotary gap correction mechanism, a Y-axis gap correction mechanism, and an X-axis gap correction mechanism.The visual inspection mechanism is used to inspect the positions of the electrode sheets; the rotary gap correction mechanism, the X-axis gap correction mechanism, and the Y-axis gap correction mechanism are connected by signals to the visual inspection mechanism; in which the rotary gap correction mechanism is used to drive the rotation of the electrode sheets, the Y-axis gap correction mechanism is used to adjust the forward progression speed of the electrode sheets on the Y-axis, and the X-axis gap correction mechanism is used to drive the movement of the electrode sheets on the X-axis.

Description

Title of the invention: Thermal rolling device technical field

[0001] The present application relates to the technical field of battery production, and in particular a thermal rolling device. State of the art

[0002] A battery comprises an outer casing, a positive electrode, a negative electrode, and a separator membrane arranged within the outer casing. The battery production process includes a layered thermal rolling step of the positive electrode, the separator membrane, and the negative electrode. During the thermal rolling process, however, differences in the position of the positive electrode, the negative electrode, and the separator membrane are likely to cause a rolling deviation, which affects the battery production quality.

[0003] Content of the invention

[0004] Based on one or more embodiments of the present application, a thermal rolling device comprising: a frame, thermal rolling rollers, and a gap correction device. Said frame is provided with an inlet opening, said inlet opening serving to admit the electrode sheets and the separation membrane; said thermal rolling rollers are arranged on said frame and serve to hot-roll said electrode sheets and said separation membrane; said gap correction device is arranged on the side of the inlet opening of said frame and comprises a visual inspection mechanism, a rotary gap correction mechanism, a Y-axis gap correction mechanism, and an X-axis gap correction mechanism.The visual inspection mechanism is used to inspect the positions of the electrode sheets. The rotary deviation correction mechanism, the X-axis deviation correction mechanism, and the Y-axis deviation correction mechanism are connected by signals to the visual inspection mechanism. The rotary deviation correction mechanism is used to drive the rotation of the electrode sheets. The Y-axis deviation correction mechanism is used to adjust the forward speed of the electrode sheets along the Y-axis. The X-axis deviation correction mechanism is used to drive the movement of the electrode sheets along the X-axis.

[0005] The aforementioned thermal rolling device has the following technical effects:

[0006] Thanks to the arrangement of the gap correction device before the thermal rolling rollers, it is possible to correct the positions of the electrode sheets by the gap correction device.In which, during the correction of the electrode sheets, thanks to the arrangement of the visual inspection mechanism it is possible to inspect in real time the positions of the electrode sheets entering through the inlet opening, and to transmit the position signals of the inspected electrode sheets respectively to the rotary gap correction mechanism, the Y-axis gap correction mechanism and the X-axis gap correction mechanism, so that the rotary gap correction mechanism and / or the Y-axis gap correction mechanism and / or the X-axis gap correction mechanism correct the positions of the electrode sheets according to the position signals of the electrode sheets detected by the visual inspection mechanism, thus guaranteeing the positioning accuracy of the electrode sheets at the thermal rolling rollers, the degree of thermal rolling accuracy and the production quality of the batteries.

[0007] Description of the accompanying figures

[0008] Fig. 1 represents the structural diagram from a visual perspective of the thermal rolling device based on an embodiment of the present application;

[0009] Fig. 2 represents the structural diagram from another visual angle of the thermal rolling device of Fig. 1;

[0010] Fig. 3 represents the structural diagram of the thermal rolling device of Fig. 1, concealing the frame and behind the thermal rolling rollers;

[0011] [Fig.4] represents the structural diagram of the X-axis deviation correction mechanism and the Y-axis deviation correction mechanism of [Fig.1];

[0012] Fig. 5 represents the structural diagram of the Y-axis deviation correction mechanism of Fig. 4;

[0013] In Figures: 100 - Thermal rolling device, 10 - Frame, 11 - Inlet opening, 20 - Thermal rolling rollers, 30 - Gap correction device, 31 - Visual inspection mechanism, 311 - CCD camera, 32 - Rotary gap correction mechanism, 321 - Rotary actuating element, 322 - First arc-shaped guide element, 323 - Second arc-shaped guide element, 33 - Y-axis gap correction mechanism, 331 - Y-axis actuating element, 332 - Master roller, 333 - Lifting actuating element, 334 - Servo roller, 34 - X-axis gap correction mechanism, 341 - X-axis actuating element, 342 - Guide rod, 343 - Bearing, 40 - Installation support, 41 - Installation frame, 42 - Connection frame, 43 - Fixing frame, 431 - Fixing plate, 432 - Interface element, 200 - Electrode sheet, 300 - Separation membrane.

[0014] Embodiments

[0015] A detailed description of the technical content, structural features, purpose, and effects of this application, combined with the accompanying figures, is given below. Specifically, the terminology used in the embodiments of this application is intended solely to describe the purposes of specific embodiments and not to limit the scope of this application.

[0016] A more detailed description of the present application combined with the accompanying Figures is given below.

[0017] With reference to Figures 1 to 5, a thermal rolling device 100 based on one or more embodiments of the present application, comprising a frame 10, thermal rolling rollers 20 and a gap correction device 30.

[0018] In which, as represented in [Fig.1] and [Fig.2], the frame 10 is provided with an inlet opening 11, the inlet opening 11 being used to bring in the electrode sheets 200 and the separation membrane 300; the thermal rolling rollers 20 are arranged on the frame 10, and are used to hot roll the electrode sheets 200 and the separation membrane 300; The gap correction device 30 is arranged on the side of the inlet opening of the chassis 10, and includes a visual inspection mechanism 31, a rotary gap correction mechanism 32, a Y-axis gap correction mechanism 33 and an X-axis gap correction mechanism 34, said visual inspection mechanism 31 is arranged at the inlet opening 11 and serves to inspect the positions of the electrode sheets 200, the rotary gap correction mechanism 32, the X-axis gap correction mechanism 33 and the Y-axis gap correction mechanism 34 are connected by signals to the visual inspection mechanism 31.In which the rotary gap correction mechanism 32 is used to drive the rotation of the electrode sheets 200, the Y-axis gap correction mechanism 33 is used to adjust the forward progression speed of the electrode sheets 200 on the Y-axis, the X-axis gap correction mechanism 34 is used to drive the movement of the electrode sheets 200 on the X-axis.

[0019] The aforementioned thermal rolling device 100, by means of the arrangement of the gap correction device 30 before the thermal rolling rollers 20, allows the positions of the electrode sheets 200 to be corrected by means of the gap correction device 30. In which, during the correction of the electrode sheets 200, thanks to the arrangement of the visual inspection mechanism 31, it is possible to inspect in real time the positions of the electrode sheets 200 entering through the inlet opening 11, and to transmit the position signals of the inspected electrode sheets 200 respectively to the rotary gap correction mechanism 32, the Y-axis gap correction mechanism 33, and the X-axis gap correction mechanism 34, so that the rotary gap correction mechanism 32 and / or the mechanism of Y-axis deviation correction 33 and / or X-axis deviation correction mechanism 34 correct the positions of the electrode sheets 200 according to the position signals of the electrode sheets 200 inspected by the visual inspection mechanism 31, thus ensuring the positioning accuracy of the electrode sheets 200 at the thermal rolling rollers 20, the degree of thermal rolling accuracy and the production quality of the batteries.

[0020] Specifically, as shown in Figures 1 to 3, in order to guarantee the integrity and compactness of the arrangement of the thermal rolling device 100, when arranging the gap correction device 30 of this utility model, the gap correction device 30 further comprises an installation support 40, a rotary gap correction mechanism 32, a Y-axis gap correction mechanism 33, and an X-axis gap correction mechanism 34 installed on the installation support 40. Thus, the arrangement of the installation support 40 allows for a homogeneous installation of the rotary gap correction mechanism 32, the Y-axis gap correction mechanism 33, and the X-axis gap correction mechanism 34, in order to guarantee the homogeneity of the thermal rolling device 100, so that each of the elements cooperates compactly and that the effect of reducing the volume occupied by the thermal rolling device 100 is achieved.In another embodiment, it is also possible, depending on the requirements, to create an installation in which the rotary deviation correction mechanism 32, the Y-axis deviation correction mechanism 33 and the X-axis deviation correction mechanism 34 each have their own installation structure.

[0021] Specifically, as shown in Figures 1 to 3, the installation support 40 comprises an installation frame 41, a connecting frame 42, and a fixing frame 43. The installation frame 41 serves to install the Y-axis gap correction mechanism 33 and to be traversed by the electrode sheets 200 and the separating membrane 300; the connecting frame 42 serves to install the rotary gap correction mechanism 32 and the X-axis gap correction mechanism 34, and is further arranged to slide relative to the fixing frame 43. In which, the rotary gap correction mechanism 32 serves to drive the rotation of the installation frame 41 relative to the connecting frame 42, and the X-axis gap correction mechanism 34 serves to drive the movement of the installation frame 41 in the direction of the X-axis.Thus, thanks to the installation of the Y-axis gap correction mechanism 33 by the installation frame 41, the electrode sheets 200 can pass through the installation frame 41 and move towards the chassis 10, the installation of the rotary gap correction mechanism 32 and the X-axis gap correction mechanism 34 by the connecting frame 42, and the actuation of the rotary gap correction mechanism 32, cause the reciprocal rotation of the connecting frame. 42 and the installation frame 41, thus making an adjustment of the angle of position of the electrode sheets on the installation frame 41, the X-axis gap correction mechanism 34 is used to drive the movement of the installation frame 41 in the direction of the X-axis, to make an adjustment of the position of the electrode sheets 200 on the X-axis.

[0022] In which, as shown in Figures 3 and 4 in said structural diagrams, the rotary deviation correction mechanism 32 of an embodiment based on the present application comprises a rotary actuating element 321, a first arc-shaped guide element 322 and a second arc-shaped guide element 323. The rotary actuating element 321 and the first arc-shaped guide element 322 are arranged on the connecting frame 42, the second arc-shaped guide element 323 is arranged on the installation frame 41, and is arranged to slide relative to the first arc-shaped guide element 322; under the actuation of the rotary actuating element 321, the installation frame 41 can pivot relative to the connecting frame 42.Specifically, the rotary actuation element 321 of this embodiment is a rotary motor; under the action of the rotary motor, the installation frame 41 pivots relative to the connection frame 42, and thus adjusts the angle of placement of the electrode sheets 200, thereby achieving a more precise adjustment of the position of the electrode sheets 200.

[0023] Specifically, the first arc-shaped guide element 322 of this embodiment is a sliding block, the second arc-shaped guide element 323 is a slide, and the movement of the installation frame 41 is guided by the arrangement of the slide. In another embodiment, the first arc-shaped guide element 322 is implemented by a slide, and the second arc-shaped guide element 323 is implemented by a sliding block, and the rotational actuation effect of the installation frame 41 is achieved.

[0024] As shown in [Fig.2] and [Fig.4] in said structural diagrams, the X-axis deviation correction mechanism 34 of the embodiment based on the present application includes an X-axis actuation element 341.The mounting frame 43 comprises a mounting plate 431 and an interface element 432, the X-axis actuation element 341 is connected between the interface element 432 and the connecting frame 42, the connecting frame 42 is arranged to slide relative to the mounting plate 431, under the actuation of the X-axis gap correction mechanism 34, the connecting frame 42 can cause the installation frame 41 to move along the same X-axis, achieving the position adjustment along the X-axis of the electrode sheets 200 passing through the installation frame 4L

[0025] Specifically, the sliding design of the connecting frame 42 relative to the mounting plate 431 is achieved by means of a guide rod 342, i.e. that is to say that the X-axis deviation correction mechanism 34 further includes a guide rod 342, the guide rod 342 is connected to the connecting frame 42, and is arranged to slide relative to the fixing plate 431. Thus, by arrangement of the guide rod 342, when the connecting frame 42 moves on the X-axis, thanks to the guidance of the guide rod 342 and the support of the connecting frame 42 and the installation frame 41 by the guide rod 342, the stability of movement of the connecting frame 42 and the installation frame 41 is guaranteed.

[0026] Furthermore, in order to ensure a degree of fluidity in the movement of the connecting frame 42 and the installation frame 41 along the X-axis, the X-axis gap correction mechanism 34 further includes a bearing 343. The bearing 343 is installed on the mounting plate 431 and provides sliding for the guide rod 342. Specifically, the bearing 343 of this embodiment is a linear bearing; the arrangement of a bearing ensures a degree of fluidity in the movement of the connecting frame 42 and the installation frame 41 via the guide rod 342 relative to the mounting plate 431.

[0027] In which, in order to ensure the stability of the movement of the connecting frame 42 and the installation frame 41 along the X-axis, the X-axis misalignment correction mechanism 34 further comprises two guide rods 342 and two bearings 343, each guide rod 342 using a bearing 343 for sliding. The support of the connecting frame 42 by two guide rods 342 prevents the gravitational force from being concentrated on one guide rod 342.

[0028] With reference to Figures 4 and 5, in one embodiment of the present application, the Y-axis deviation correction mechanism 33 comprises a Y-axis actuating element 331, a master roller 332, a lifting actuating element 333 and a servo roller 334. The master roller 332 is connected to the Y-axis actuating element 331, and its rotation is driven by the Y-axis actuating element 331; the servo roller 334 is connected to the lifting actuating element 333, and its upward and downward movement is driven by the lifting actuating element 333 by cooperation with or distancing from the master roller 332.Thus, under the actuation of the Y-axis actuation element 331, the electrode sheets 200 are clamped by the master roller 332 and the servo roller 334 and move forward; when it is necessary to adjust the forward speed of the electrode sheets 200, it is sufficient to control the actuation speed of the Y-axis actuation element 331; when it is necessary to replace the electrode sheets 200, the lifting of the servo roller 334 by the lifting actuation element 333 allows the electrode sheets 200 to pass quickly and conveniently between the master roller 332 and the servo roller 334.

[0029] Specifically, the lifting actuation element 333 of this embodiment is an actuation cylinder; the actuation cylinder drives the upward and downward movement of the servo roller 334, achieving cooperation or distancing with the master roller 332.

[0030] It must be understood that during the thermal rolling of the electrode sheets 200 and the separation membrane 300, the electrode sheets 200 comprise a positive electrode sheet and a negative electrode sheet, positive electrode sheet and negative electrode sheet are respectively placed on the two opposite faces of the separation membrane 300, therefore the thermal rolling device 100 can include two gap correction devices 30, one gap correction device 30 serving to correct the gap of the positive electrode sheet and another gap correction device 30 serving to correct the gap of the negative electrode sheet.

[0031] As shown in [Fig. 1] and [Fig. 2], in the embodiment of the present application, the visual inspection mechanism 31 comprises two separately arranged CCD cameras 311. During installation, the two CCD cameras 311 are arranged separately on the frame 10 in the width direction of the electrode sheets 200, in order to monitor the two lateral edges of the electrode sheets 200. By monitoring the two lateral edges of the electrode sheets 200 with the two CCD cameras 311, it is possible to detect whether the electrode sheets 200 and the separating membrane 300 are aligned or not, which, compared to monitoring only the central region of the electrode sheets 200, increases the accuracy of the assessment.

[0032] Although these are considered to be the most practical preferred embodiments describing the content of this application, it should nevertheless be understood that the content of this application is not limited to the publicly disclosed embodiments, but aims to cover all possible combinations which do not deviate from the scope of the attached claims in their broadest sense.

Claims

Demands

1. Thermal rolling device (100), characterized in that it comprises: a frame (10), said frame (10) being provided with an inlet opening (11), said inlet opening (11) being used to bring in the electrode sheets (200) and the separation membrane (300); thermal rolling rollers (20) are arranged on said frame (10), and are used to hot roll said electrode sheets (200) and said separation membrane (300); and a gap correction device (30), arranged on the side of the inlet opening of said chassis (10), the gap correction device (30) comprising a visual inspection mechanism (31), a rotary gap correction mechanism (32), a Y-axis gap correction mechanism (33) and an X-axis gap correction mechanism (34), said visual inspection mechanism (31) is used to inspect the positions of said electrode sheets (200), said rotary gap correction mechanism (32),said X-axis deviation correction mechanism (33) and said Y-axis deviation correction mechanism (34) are connected by signals to said visual inspection mechanism (31), in which said rotary deviation correction mechanism (32) serves to drive the rotation of said electrode sheets (200), said Y-axis deviation correction mechanism (33) serves to adjust the forward speed of said electrode sheets (200) on the Y-axis, said X-axis deviation correction mechanism (34) serves to drive the movement of said electrode sheets 200 on the X-axis.

2. Thermal rolling device (100) according to claim 1, characterized in that said gap correction device (30) further comprises an installation support (40), said rotary gap correction mechanism (32), said Y-axis gap correction mechanism (33) and said X-axis gap correction mechanism (34) installed on said installation support (40).

3. Thermal rolling device (100) according to claim 2, characterized in that said installation support (40) comprises an installation frame (41), a connection frame (42) and a fixing frame (43);

4.

5. said installation frame (41) serves to install the Y-axis gap correction mechanism (33), and serves to be traversed by said electrode sheets (200) and said separating membrane (300); said connecting frame (42) serves to install said rotary gap correction mechanism (32) and said X-axis gap correction mechanism (34), furthermore it is arranged in a sliding manner relative to said fixing frame (43); in which, said rotary deviation correction mechanism (32) serves to drive the rotation of said installation frame (41) relative to said connecting frame (42), said X-axis deviation correction mechanism (34) serves to drive the displacement of said installation frame (41) in the direction of the X-axis. Thermal rolling device (100) according to claim 3, characterized in that, said rotary gap correction mechanism (32) comprises a rotary actuating element (321), a first arc-shaped guide element (322) and a second arc-shaped guide element (323), said rotary actuating element (321) and said first arc-shaped guide element (322) are arranged on said connecting frame (42), said second arc-shaped guide element (323) is arranged on said installation frame (41), and is arranged to slide relative to said first arc-shaped guide element (322), under the actuation of said rotary actuating element (321), said installation frame 41 can pivot relative to said connecting frame (42). Thermal rolling device (100) according to claim 3, characterized in that, said fixing frame (43) comprises a fixing plate (431) and an interface element (432), said X-axis gap correction mechanism (34) comprises an X-axis actuating element (341), said X-axis actuating element (341) is connected between said interface element (432) and said connecting frame (42), said connecting frame (42) is arranged to slide relative to said fixing plate (431), under the actuation of the X-axis gap correction mechanism (34), said connecting frame (42) and said installation frame (41) can move together on said X-axis.

6. Thermal rolling device (100) according to claim 5, characterized in that said X-axis gap correction mechanism (34) further comprises a guide rod (342), said guide rod (342) is connected to said connecting frame (42), and is arranged to slide relative to said fixing plate (431).

7. Thermal rolling device (100) according to claim 6, characterized in that said X-axis gap correction mechanism (34) further comprises a bearing (343), said bearing (343) is installed on said mounting plate (431), and provides sliding to said guide rod (342).

8. Thermal rolling device (100) according to any one of claims 1-7, characterized in that, said Y-axis gap correction mechanism (33) comprises a Y-axis actuating element (331), a master roller (332), a lifting actuating element (333) and a servo roller (334), said master roller (332) is connected to said Y-axis actuating element (331), rotation is driven by said Y-axis actuating element (331); said servo roller (334) is connected to said lifting actuating element (333), upward and downward movement is driven by said lifting actuating element (333) by cooperation with or distancing from said master roller (332).

9. Thermal rolling device (100) according to any one of claims 1-7, characterized in that, said visual inspection mechanism (31) comprises two CCD cameras (311) arranged separately, said two CCD cameras (311) are arranged separately on said frame (10) in the direction of the width of said electrode sheets (200), in order to monitor the two lateral edges of said electrode sheets (200).

10. A thermal rolling device (100) according to any one of claims 1-7, characterized in that said electrode sheets (200) comprise a positive electrode sheet (200) and a negative electrode sheet (200), said positive electrode sheet (200) and said negative electrode sheet (200) are respectively placed on the two opposite faces of said separating membrane (300), said thermal rolling device (100) comprises two gap correction devices (30), said two gap correction devices (30) serving to correct respectively the gap of the positive electrode sheet (200) and the gap of the negative electrode sheet (200).

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