Battery pole roll bump detection tool

Abstract

The utility model discloses a battery pole roll bump detection tool, and particularly relates to the field of battery pole roll quality detection, which comprises a main frame body and a winding shaft, laser emitted by the laser sensor is parallel to a bus of the pole roll wound by the winding shaft, and a gap is reserved between the laser and the outer side face of the pole roll; the displacement adjusting part is used for driving the laser sensor to linearly move in the radius direction of the winding shaft; the laser sensor, the displacement adjusting part, the controller and the buzzer are electrically connected, the laser displacement sensor can sense the change of the roll diameter and transmit information to the laser sensor along with the increase of the roll diameter of the pole roll, and then the transmitting end and the receiving end of the laser sensor automatically ascend along with the increase of the roll diameter under the action of the motor so as to adapt to the whole winding link. The purpose of detecting the bump in the winding process is achieved, and the bump phenomenon part can be released or the bump thickness control requirement can be increased selectively by changing the parallel distance between the emitted light and the surface of the pole piece.

Description

Technical Field

[0001] The utility model relates to the field of battery pole roll quality inspection, and more specifically, the utility model relates to a battery pole roll bulging detection tooling. Background Art

[0002] The front - end production process of lithium batteries includes processes such as homogenization, coating, rolling, and slitting. That is, the slurry is uniformly coated on aluminum foil or copper foil according to a certain surface density, wound into a pole roll with a certain coil diameter, and then transferred to subsequent processes after rolling and slitting.

[0003] In the above - mentioned processes, when the slurry coating is uneven or there are abnormalities such as damage to the rollers in the rolling process, it is very likely that the pole roll bulges at some positions during winding. After the pole roll bulges, the subsequent processes cannot eliminate this appearance abnormality of the pole piece. The appearance and thickness inspection of the front - end process can only detect the defects and thickness of a single - layer pole roll, and cannot detect the appearance and thickness of the pole roll after multi - layer pole pieces are wound. When the appearance of the punched - out pieces is inspected comprehensively, the pole roll is unrolled into a single - layer pole piece, and the bulging appearance abnormality becomes mild, and the bulging pole pieces cannot be identified and removed. Only when the bulging phenomenon is relatively serious and the appearance of the single - layer pole piece is greatly affected can it be identified and detected. When the bulging pole pieces are not identified and detected, multiple bulging pole pieces or continuous bulging pole pieces are concentrated in the same battery cell, ultimately resulting in an abnormal appearance of the finished battery cell and affecting the performance and life of the battery cell. Summary of the Utility Model

[0004] In order to overcome the above - mentioned defects of the prior art, an embodiment of the utility model provides a battery pole roll bulging detection tooling. The technical problem to be solved by the utility model is: how to detect the bulging position during the winding stage of the pole roll.

[0005] To achieve the above object, the utility model provides the following technical solution: A battery pole roll bulging detection tooling, including a tooling frame, which includes a main frame body and a winding shaft rotatably connected to the main frame body; a laser sensor, slidably connected to the main frame body, the laser emitted by the laser sensor is parallel to the bus of the pole roll wound on the winding shaft, and there is a gap between the laser and the outer side surface of the pole roll; a displacement adjusting member, used to drive the laser sensor to move linearly along the radial direction of the winding shaft; the laser sensor, the displacement adjusting member, the controller and the buzzer are electrically connected.

[0006] In a preferred embodiment, the tooling further includes a laser displacement sensor, which is installed on the main frame body and used to monitor the diameter size of the pole roll on the winding shaft, and the laser displacement sensor is electrically connected to the controller.

[0007] In a preferred embodiment, the laser displacement sensor is arranged away from the winding edge of the pole roll on the winding shaft.

[0008] In a preferred embodiment, the main frame is in the shape of a gantry. The laser displacement sensor is installed on the top cross beam of the main frame, and the winding edge is located on the lower side of the winding shaft.

[0009] In a preferred embodiment, the axis of the winding shaft is located directly below the monitored area of the laser displacement sensor.

[0010] In a preferred embodiment, the main frame is in the shape of a gantry. The emitting end and the receiving end of the laser sensor are respectively slidably connected to the two columns of the main frame, and the sliding tracks of the emitting end and the receiving end are parallel to each other.

[0011] In a preferred embodiment, the laser sensor moves up and down synchronously along the vertical direction on the column.

[0012] In a preferred embodiment, the displacement adjusting member includes a limiting plate, a built-in motor, a thick lead screw, and a lifting platform. A vertical sliding groove is provided inside the limiting plate fixed to the column. The lifting platform is slidably placed in the sliding groove. The built-in motor is installed at the bottom of the limiting plate. The output shaft of the built-in motor is fixed to the thick lead screw. The thick lead screw is in threaded transmission connection with the lifting platform. The emitting end and the receiving end of the laser sensor are respectively arranged on the corresponding lifting platforms. The controller controls the built-in motors on the two columns to rotate synchronously.

[0013] In a preferred embodiment, a gap adjusting member is provided on the lifting platform, including a layout plate, a bottom plate, a guide rod, a knob, and a thin lead screw. The emitting end and the receiving end of the laser sensor are respectively arranged on the corresponding layout plates. The lifting platform is fixed to the bottom plate. The bottom plate is fixed with a guide rod. The layout plate is slidably sleeved on the guide rod. A knob is inserted into the bottom plate. The knob and the thin lead screw rotate synchronously. The rod body of the thin lead screw is in threaded connection with the bottom plate while its rod end is rotationally connected to the layout plate.

[0014] In a preferred embodiment, a limiting edge is provided at one end of the thin lead screw away from the layout plate, and a limiting groove is provided in the knob rotationally connected to the bottom plate. The limiting edge is inserted into the limiting groove to keep the knob and the thin lead screw rotating synchronously.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. As the diameter of the pole roll increases, the laser displacement sensor can sense the change in the roll diameter and transmit information to the laser sensor. Then, under the action of the displacement adjusting member, the emitting end and the receiving end of the laser sensor automatically rise as the roll diameter increases to adapt to the entire winding process, achieving the purpose of detecting the bulge during the winding process.

[0017] 2. By manually rotating the knob, the transmitting end and the receiving end of the laser sensor can be raised or lowered on the column of the main frame body, changing the parallel distance between the emitted light and the surface of the pole piece, so that it is possible to select to release part of the bulging phenomenon or tighten the control requirements for the bulging thickness. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the technical solution of the present invention and form a part of the present invention. The embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0019] Figure 1 It is a structural diagram of a battery pole roll bulging detection tooling for the present invention.

[0020] Figure 2 It is a schematic diagram of the layout position of the laser displacement sensor in the present invention.

[0021] Figure 3 is Figure 3 an enlarged view of A in

[0022] Figure 4 It is a schematic diagram of the layout position of the winding shaft in the present invention.

[0023] The reference numerals in the drawings are: 1, tooling frame; 11, main frame body; 12, winding shaft; 2, laser displacement sensor; 3, laser sensor; 4, displacement adjusting member; 41, limiting plate; 42, built-in motor; 43, thick lead screw; 5, gap adjusting member; 51, arranging plate; 52, bottom plate; 53, guide rod; 54, knob; 55, thin lead screw. Detailed Embodiment

[0024] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these exemplary embodiments are provided so that this disclosure will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0025] In addition, the described features, structures or characteristics may be combined in one or more example embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the example embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, steps, etc. may be adopted. In other cases, well-known structures, methods, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0026] Example 1

[0027] like Figure 1 , Figure 2 and Figure 4 A battery pole roll bulge detection tool includes a tool frame 1, a laser displacement sensor 2, a laser sensor 3, a displacement adjustment member 4, a buzzer and a controller. The controller can be installed inside the entire tool or arranged outside the tool.

[0028] The tooling frame 1 includes a main frame body 11 and a winding shaft 12. The winding shaft 12 is rotatably connected to the main frame body 11 and is used to wind up the aluminum foil or copper foil coated with slurry. An external motor for driving the winding shaft 12 to rotate is provided on one side of the winding shaft 12. The output shaft of the external motor and the winding shaft 12 can be directly fixed or connected through a corresponding transmission mechanism. The so-called transmission mechanism includes but is not limited to a gear transmission mechanism.

[0029] The laser displacement sensor 2 and the laser sensor 3 are both arranged on the main frame 11. The laser sensor 3 includes a transmitting end and a receiving end. The laser displacement sensor 2 is used to monitor the diameter of the winding shaft 12 or the pole roll wound on the winding shaft 12 in real time. The laser between the transmitting end and the receiving end of the laser sensor 3 is parallel to the busbar of the winding shaft 12 or the pole roll wound on the winding shaft 12, and a gap d is retained between the laser and the outermost side of the pole roll.

[0030] A controller and a buzzer are also provided. The controller and the buzzer can be electrically connected to the laser displacement sensor 2 and the laser sensor 3 through wires, or can be electrically connected to the laser displacement sensor 2 and the laser sensor 3 through wireless transmission. The wireless transmission method includes but is not limited to Bluetooth, WiFi, Zigbee and Z-Wave.

[0031] One situation in this embodiment is:

[0032] The laser displacement sensor 2 is arranged on the top crossbeam of the main frame 11, and its monitoring area is located directly below it.

[0033] Preferably, the central axis of the winding shaft 12 is located directly below the laser displacement sensor 2 .

[0034] Both the transmitting end and the receiving end of the laser sensor 3 are slidably disposed on the two side columns of the main frame 11, and the displacement adjusting member 4 is used to drive the transmitting end and the receiving end of the laser sensor 3 to move up and down along the vertical direction on the corresponding columns respectively.

[0035] In the initial state, there is no pole coil on the winding shaft 12, and it is in a bare rod state. The laser displacement sensor 2 monitors the diameter of the winding shaft 12 in the bare rod state. The transmitting end and the receiving end of the laser sensor 3 are respectively disposed on the columns of the main frame 11 on both sides of the winding shaft 12. The laser emitted by the transmitting end is received by the receiving end. The laser is parallel to the generatrix of the winding shaft 12 and there is a gap d between the laser and the generatrix.

[0036] The laser displacement sensor 2 disposed at the top of the pole coil is used to monitor the diameter of the formed pole coil in real time and upload the diameter data of the pole coil to the controller. The controller controls the displacement adjusting member 4 to drive the transmitting end and the receiving end of the laser sensor 3 to move synchronously according to the pre-entered control logic, so as to ensure that the laser can always be parallel to the generatrix of the pole coil wound on the winding shaft 12 and ensure that the value of the gap d remains unchanged. Once a bulge occurs during the winding of the pole coil and the bulge is higher than the gap d, at this time the receiving end cannot receive the laser, and the controller controls the buzzer to turn on and give an alarm outward to remind the user that a bulge appears at this position, so that the user can immediately control the winding shaft 12 to stop rotating and reduce the product rejection rate.

[0037] Preferably, the laser displacement sensor 2 is far away from the winding edge of the pole coil on the winding shaft 12, and the winding edge is located on the lower side of the pole coil, which means that as the foil is continuously thickened, new materials are always added to the bottom of the pole coil, so that the top of the pole coil becomes the last part to be wound.

[0038] It should be noted that the laser displacement sensor 2 mentioned in this embodiment integrates the functions of transmitting and receiving, and only one device can complete the measurement task. It emits laser light and then receives the laser light reflected from the surface of the object, and calculates the distance by measuring the flight time or phase difference of the reflected light. Specifically, the laser displacement sensor 2 can measure the distance from the surface of the object to the sensor. When the pole coil increases, the sensor can detect that its surface is getting farther and farther away from the sensor, so as to obtain the information that the diameter of the pole coil increases.

[0039] The displacement adjusting member 4 is a mechanism with the ability of linear movement, such as a lead screw structure, a cylinder, an electric cylinder, etc.

[0040] In one case of this embodiment, the displacement adjusting member 4 includes a limiting plate 41, a built-in motor 42, a thick lead screw 43 and a lifting platform. The limiting plate 41 is fixed on two columns of the main frame body 11. The limiting plate 41 is provided with a chute along the vertical direction. The housing of the built-in motor 42 is fixed at the bottom of the limiting plate 41. The output shaft of the built-in motor 42 is fixedly connected to the thick lead screw 43. The thick lead screw 43 is in threaded transmission connection with the lifting platform. The lifting platform is slidably placed in the chute. The transmitting end and the receiving end of the laser sensor 3 are respectively installed on the corresponding lifting platform. By controlling the rotation of the built-in motor 42 electrically connected thereto by the controller, the built-in motor 42 drives the lifting platform to move up and down through the thick lead screw 43, so as to achieve the purpose of controlling the position of the laser sensor 3.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, this embodiment optimizes and improves the adjustment of the gap d.

[0043] Such as Figure 1 and Figure 4 , the gap adjusting member 5 includes an arrangement plate 51, a bottom plate 52, a guide rod 53, a knob 54 and a thin lead screw 55. The transmitting end and the receiving end of the laser sensor 3 are respectively fixed on the corresponding arrangement plate 51. The arrangement plate 51 is fixed to the lifting platform. The guide rod 53 is fixed on the bottom plate 52. The arrangement plate 51 is slidably sleeved on the guide rod 53. The rod body of the thin lead screw 55 is in threaded transmission connection with the bottom plate 52, and the end of the rod of the thin lead screw 55 is rotatably connected to the bottom surface of the arrangement plate 51. A limiting edge is provided on one end of the thin lead screw 55 extending out of the bottom plate 52. A limiting groove is provided in the knob 54 rotatably connected to the bottom plate 52. The limiting edge is inserted into the limiting groove. Therefore, the limiting edge and the limiting groove can slide relative to each other. The user drives the thin lead screw 55 to rotate by screwing the knob 54, and through the thread action, the arrangement plate 51 drives the laser sensor 3 to move up and down relative to the bottom plate 52, so as to achieve the purpose of adjusting the gap d, and thus the bulging phenomenon part can be selectively released or the control requirement for the bulging thickness can be tightened.

[0044] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

[0045] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0046] Second, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0047] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery pole roll bulging detection tooling, characterized in that Including: A tooling rack (1), including a main frame body (11) and a winding shaft (12) rotatably connected to the main frame body (11); a laser sensor (3), slidably connected to the main frame body (11), the laser emitted from the laser sensor (3) is parallel to the pole winding busbar wound by the winding shaft (12), and there is a gap between the laser and the outer side of the pole winding; a displacement adjusting member (4), used to drive the laser sensor (3) to move linearly along the radial direction of the winding shaft (12); the laser sensor (3), the displacement adjusting member (4), the controller and the buzzer are electrically connected.

2. The battery pole roll bulging detection tooling according to claim 1, wherein: The tooling further includes a laser displacement sensor (2), installed on the main frame body (11), used to monitor the diameter of the pole winding on the winding shaft (12), and the laser displacement sensor (2) is electrically connected to the controller.

3. The battery pole roll bulging detection tooling according to claim 2, wherein: The layout position of the laser displacement sensor (2) is far from the winding edge of the pole winding on the winding shaft (12).

4. A battery pole roll bulging detection tooling according to claim 3, characterized in that: The main frame body (11) is in a gantry shape, the laser displacement sensor (2) is installed on the top cross beam of the main frame body (11), and the winding edge is located on the lower side of the winding shaft (12).

5. The battery pole roll bulging detection tooling according to claim 3, wherein: The axis of the winding shaft (12) is located directly below the monitoring area of the laser displacement sensor (2).

6. A battery pole roll bulging detection tooling according to any one of claims 1-5, characterized in that: The main frame body (11) is in a gantry shape, the emitting end and the receiving end of the laser sensor (3) are respectively slidably connected to the two columns of the main frame body (11), and the sliding tracks of the emitting end and the receiving end are parallel to each other.

7. A battery pole roll bulging detection tooling according to claim 6, characterized in that: The emitting end and the receiving end of the laser sensor (3) move up and down synchronously along the vertical direction on the column.

8. A battery electrode roll bulging detection tooling according to claim 7, characterized in that: The displacement adjusting member (4) includes a limiting plate (41), a built-in motor (42), a thick lead screw (43) and a lifting platform. A vertical chute is opened inside the limiting plate (41) fixed to the column, the lifting platform is slidably placed in the chute, the built-in motor (42) is installed at the bottom of the limiting plate (41), the output shaft of the built-in motor (42) is fixed to the thick lead screw (43), and the thick lead screw (43) is in threaded transmission connection with the lifting platform. The emitting end and the receiving end of the laser sensor (3) are respectively arranged on the corresponding lifting platforms, and the controller controls the built-in motors (42) on the two columns to rotate synchronously.

9. The battery pole coil bulging detection tooling according to claim 8, wherein: A gap adjusting member (5) is arranged on the lifting platform, including a layout plate (51), a bottom plate (52), a guide rod (53), a knob (54) and a thin lead screw (55). The emitting end and the receiving end of the laser sensor (3) are respectively arranged on the corresponding layout plates (51), the lifting platform is fixed to the bottom plate (52), a guide rod (53) is fixed on the bottom plate (52), the layout plate (51) is slidably sleeved on the guide rod (53), a knob (54) is inserted into the bottom plate (52), the knob (54) rotates synchronously with the thin lead screw (55), and the rod body of the thin lead screw (55) is in threaded connection with the bottom plate (52) while its rod end is rotatably connected to the layout plate (51).

10. A battery pole roll bulging detection tooling according to claim 9, characterized in that: A limiting edge is opened at one end of the thin lead screw (55) far from the layout plate (51), and a limiting groove is opened in the knob (54) rotatably connected to the bottom plate (52), and the limiting edge is inserted into the limiting groove to keep the knob (54) and the thin lead screw (55) rotating synchronously.

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