Battery spraying device

Abstract

The utility model provides a battery spraying device. The battery spraying device comprises a bearing table, a spraying mechanism and a thickness measuring device, wherein the spraying mechanism and the thickness measuring device are arranged on the bearing table; a connecting piece is rotationally arranged on the bearing table and is used for fixing the end part of the cylindrical battery and driving the cylindrical battery to rotate by taking the axis of the cylindrical battery as the center; the spraying mechanism and the thickness measuring device are arranged at intervals in the circumferential direction of the cylindrical battery, the spraying mechanism is used for spraying materials on the outer circumferential surface of the cylindrical battery, and the thickness measuring device is used for measuring the thickness of the materials sprayed on the outer circumferential surface of the cylindrical battery. According to the battery spraying device, the automation degree of material spraying can be improved, the production efficiency can be improved, the labor cost can be reduced, real-time monitoring on the thickness of a coating can be achieved, and therefore the consistency of the spraying thickness can be guaranteed.

Description

Technical Field

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

[0002] As a source of energy, batteries play a huge role in our lives. Batteries are devices that convert chemical energy into electrical energy. For cylindrical batteries, structurally, cylindrical batteries include battery cells and shells that encapsulate the battery cells. During the production process, an insulating coating is usually sprayed on the outer surface of the battery shell to provide insulation protection. However, the spraying of insulating coatings is currently mainly done manually with a handheld spray gun. This method has low work efficiency and occupies more human resources, resulting in high battery production costs. In addition, the thickness of the spray cannot be monitored and corrected in real time, resulting in poor consistency in the spray thickness of the shell. Utility Model Content

[0003] In view of this, the utility model aims to provide a battery spraying device to improve production efficiency, reduce labor costs, and help ensure thickness consistency.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A battery spraying device comprises a carrying platform, and a spraying mechanism and a thickness measuring device arranged on the carrying platform;

[0006] A connecting piece is rotatably provided on the supporting platform, and the connecting piece is used to fix the end of the cylindrical battery and drive the cylindrical battery to rotate around the axis of the cylindrical battery;

[0007] The spraying mechanism and the thickness measuring device are arranged at intervals along the circumference of the cylindrical battery. The spraying mechanism is used to spray materials on the outer peripheral surface of the cylindrical battery, and the thickness measuring device is used to measure the thickness of the material sprayed on the outer peripheral surface of the cylindrical battery.

[0008] Furthermore, the connecting member includes a vacuum suction cup rotatably disposed on the supporting platform, and the vacuum suction cup is provided with an adsorption hole for adsorbing the end surface of the cylindrical battery.

[0009] Furthermore, the adsorption holes are multiple and arranged at intervals.

[0010] Furthermore, the connecting members are two arranged at intervals along the axial direction of the cylindrical battery, and the two connecting members are respectively used to connect the two ends of the cylindrical battery.

[0011] Furthermore, the spraying mechanism comprises a spray gun having a plurality of nozzles arranged at intervals along the axial direction of the cylindrical battery.

[0012] Furthermore, the distance h between each of the nozzles and the outer peripheral surface of the cylindrical battery satisfies: 3cm≤h≤30cm.

[0013] Furthermore, the spraying mechanism and the thickness measuring device are arranged relatively in the circumferential direction of the cylindrical battery.

[0014] Furthermore, the thickness measuring device adopts a laser scanner.

[0015] Furthermore, the support platform is provided with a material collecting portion for collecting excess spraying material.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The battery spraying device described in the utility model, through the spraying mechanism and the thickness measuring device arranged on the supporting platform, enables the spraying mechanism to spray materials on the outer peripheral surface of the cylindrical battery, and the thickness measuring device can measure the thickness of the material after spraying, thereby improving the automation degree of cylindrical battery material spraying, improving production efficiency, reducing labor costs, and also facilitating real-time monitoring of coating thickness, thereby facilitating ensuring the consistency of spraying thickness, and having a good use effect.

[0018] In addition, the connector adopts a vacuum suction cup, which can better fix the cylindrical battery and avoid affecting the spraying effect due to occupying the outer peripheral surface of the cylindrical battery during fixation. The adsorption holes are arranged in multiple intervals, which is conducive to further improving the reliability of adsorption and fixation of the end of the cylindrical battery.

[0019] Secondly, the two connectors are arranged at intervals, and the two connectors respectively adsorb and fix the two ends of the cylindrical battery, which can better fix the cylindrical battery and ensure the stability of the cylindrical battery during the rotation process, which is conducive to improving the spraying effect. The multiple nozzles arranged at intervals along the axial direction of the cylindrical battery on the spray gun can enable the spray areas of the multiple nozzles to cover the length direction of the cylindrical battery, and when the cylindrical battery rotates, the outer peripheral surface of the cylindrical battery can be better sprayed.

[0020] In addition, the limitation of the distance between the nozzle and the outer surface of the cylindrical battery can further ensure the spraying quality of the outer surface of the cylindrical battery. The spraying mechanism and the thickness measuring device are arranged relative to each other, and the cylindrical battery can be used to shield the thickness measuring device to prevent the thickness measuring device from being sprayed with materials and affecting the accuracy of thickness measurement. The material collection part is set up to collect the excess sprayed materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the battery spraying device according to an embodiment of the utility model;

[0023] Figure 2 An exploded view of a battery spraying device according to an embodiment of the utility model;

[0024] Description of reference numerals:

[0025] 1. Carrying platform; 2. Spraying mechanism; 3. Thickness measuring device; 4. Vacuum suction cup; 10. Cylindrical battery; 101. Material collecting groove; 201. Nozzle; 301. Laser emitter. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] The present embodiment relates to a battery spraying device, which can not only improve the degree of automation of material spraying, enhance production efficiency, and reduce labor costs, but also facilitate the real-time monitoring of coating thickness, thereby facilitating the consistency of spraying thickness.

[0031] In terms of overall composition, Figure 1 and Figure 2 As shown, the battery spraying device of this embodiment includes a carrier 1, and a spraying mechanism 2 and a thickness measuring device 3 arranged on the carrier 1. Among them, a connecting piece is rotatably provided on the carrier 1, and the connecting piece is used to fix the end of the cylindrical battery 10 and drive the cylindrical battery 10 to rotate around the axis of the cylindrical battery 10.

[0032] The spraying mechanism 2 and the thickness measuring device 3 are arranged at intervals along the circumference of the cylindrical battery 10 . The spraying mechanism 2 is used to spray materials on the outer peripheral surface of the cylindrical battery 10 , and the thickness measuring device 3 is used to measure the thickness of the material sprayed on the outer peripheral surface of the cylindrical battery 10 .

[0033] At this time, when the rotation of the connecting piece drives the cylindrical battery 10 to rotate around its own axis, the spraying mechanism 2 is used to spray the material on the outer peripheral surface of the cylindrical battery 10, which can save manual spraying operations, and can improve the degree of automation of the material spraying of the cylindrical battery 10, improve production efficiency, and reduce labor costs. In addition, after spraying, the thickness of the sprayed material is measured by the thickness measuring device 3, which is also conducive to realizing real-time monitoring of the coating thickness, thereby ensuring the consistency of the spraying thickness.

[0034] It should be noted that the sprayed material may be, for example, a liquid insulating material or a powdered insulating material, and the sprayed insulating material may be, for example, an epoxy resin coating, a nano-ceramic powder or a silicate coating. Moreover, the sprayed insulating material can form an insulating layer on the outer peripheral surface of the cylindrical battery 10.

[0035] For more details, see Figure 1 and Figure 2 As shown, as a preferred embodiment, in this embodiment, the cylindrical battery 10 can be grabbed onto the carrier 1 by a manipulator or other loading mechanism, and the carrier 1 is provided with a driving device for driving the connection member to rotate. The driving device can be, for example, a motor, and the power output end of the motor is transmission-connected to the connection member, and the connection member is driven to rotate under the drive of the motor. Preferably, in this embodiment, the connection member includes a vacuum suction cup 4 rotatably arranged on the carrier 1, and the vacuum suction cup 4 is provided with an adsorption hole for adsorbing the end face of the cylindrical battery 10.

[0036] Specifically, the vacuum suction cup 4 has a negative pressure channel, and a suction hole connected to the negative pressure channel is provided on the section of the vacuum suction cup 4 facing the cylindrical battery 10. The negative pressure channel is connected to the negative pressure device through a pipeline, and under the action of the negative pressure device, a negative pressure suction force is generated at the suction hole position, thereby adsorbing and fixing the end of the cylindrical battery 10. In addition, the use of the vacuum suction cup 4 to fix the cylindrical battery 10 can also avoid affecting the spraying effect due to the fixed cylindrical battery 10 occupying part of its outer peripheral surface.

[0037] In this embodiment, a plurality of adsorption holes are formed on the vacuum suction cup 4 and are arranged at intervals, which can further improve the reliability of adsorption and fixation of the end of the cylindrical battery 10 .

[0038] As a preferred embodiment, there are two connectors arranged at intervals along the axial direction of the cylindrical battery 10, and the two connectors are used to connect the two ends of the cylindrical battery 10 respectively. That is, there are two vacuum suction cups 4 arranged at intervals along the axial direction of the cylindrical battery 10, and the two vacuum suction cups 4 respectively adsorb and fix the two ends of the cylindrical battery 10. Among them, in the specific implementation, a through hole is provided on the support platform 1, and the vacuum suction cup 4 located at the lower end of the cylindrical battery 10 can be inserted into the through hole, and the end face of the vacuum suction cup 4 with the adsorption hole can be flush with the end face of the support platform 1, or slightly higher than the surface of the support platform 1. In addition, a seal can be provided between the vacuum suction cup 4 and the through hole to ensure the sealing between the vacuum suction cup 4 and the through hole.

[0039] The spraying mechanism 2 of this embodiment includes a spray gun having a plurality of nozzles 201 arranged at intervals along the axial direction of the cylindrical battery 10. The arrangement of the plurality of nozzles 201 enables the spraying areas of the nozzles 201 to have overlapping areas, thereby better covering the length direction of the cylindrical battery 10, and when the cylindrical battery 10 rotates, the outer peripheral surface of the cylindrical battery 10 can be better sprayed.

[0040] Preferably, in this embodiment, the distance h between each nozzle 201 and the outer peripheral surface of the cylindrical battery 10 satisfies: 3cm≤h≤30cm. The limitation of the distance between the nozzle 201 and the outer peripheral surface of the cylindrical battery 10 can further ensure the spraying quality of the outer peripheral surface of the cylindrical battery 10. In specific implementation, the distance h can be set to 3cm, 5cm, 10cm, 15cm, 20cm, 25cm or 30cm, for example.

[0041] Also preferably, in this embodiment, the spraying mechanism 2 and the thickness measuring device 3 are relatively arranged in the circumferential direction of the cylindrical battery 10, so that the cylindrical battery 10 can be used for shielding to prevent the thickness measuring device 3 from being sprayed with material and affecting the accuracy of thickness measurement.

[0042] The thickness measuring device 3 of this embodiment can be a laser scanner, which has a plurality of laser emitters 301 arranged at intervals along the axial direction of the cylindrical battery 10, so that the laser beam is emitted by the laser emitter 301 to measure the distance between the laser beam and the target object, that is, the outer peripheral surface of the cylindrical battery 10. The outer peripheral surface of the cylindrical battery is measured before and after spraying, and the thickness of the coating on the outer peripheral surface of the cylindrical battery 10 is obtained by calculating the difference between the two measurements.

[0043] In specific implementation, before the cylindrical battery 10 is sprayed, the cylindrical battery 10 is first rotated, and the laser beam emitted by the laser emitter 301 on the laser scanner is used to measure the distance between the laser beam and the outer peripheral surface of the cylindrical battery 10. At the same time, the spray gun sprays the insulating material on the outer peripheral surface of the cylindrical battery 10. After the cylindrical battery 10 rotates one circle, the distance between the laser beam and the outer peripheral surface of the cylindrical battery 10 is measured again by the laser emitter 301 on the laser scanner. That is, the outer peripheral surface of the cylindrical battery 10 is measured before and after spraying, and the thickness of the coating on the outer peripheral surface of the cylindrical battery 10 is obtained by calculating the difference between the two measurements.

[0044] The laser scanner mentioned above uses a laser emitter 301 to generate a high-brightness laser beam, which is focused by a lens and scanned by a scanning mirror, and is finally reflected or scattered back by the target surface. After receiving the reflected light signal, the photodetector converts it into an electrical signal and processes it, and finally forms an image or data output. Among them, the laser emitter 301 is a key component that plays the role of generating a laser beam, and a gallium nitride (GaN) laser diode or a laser diode array is usually used as the laser emitter 301. The scanning mirror usually uses an oscillating mirror or a rotating mirror to achieve horizontal and vertical scanning. It is worth noting here that the technology of measuring coating thickness using laser can be implemented using existing mature technologies.

[0045] It is also worth mentioning that in this embodiment, since the spray gun and the laser emitter 301 are arranged relative to each other, the two can be operated simultaneously, that is, the spraying operation of the nozzle 201 and the measurement operation of the laser emitter 301 can be carried out simultaneously, which can improve the efficiency of spraying and thickness measurement of the cylindrical battery 10.

[0046] Still viewing Figure 1 and Figure 2 As shown, in this embodiment, a material collecting portion for collecting the excess spraying material is provided on the carrier 1, so as to facilitate the collection of the excess spraying material. Specifically, the material collecting portion includes a material collecting groove 101 formed on the upper end surface of the carrier 1, and the cylindrical battery 10 is located in the middle of the material collecting groove 101. At this time, the setting of the material collecting groove 101 can enable the sprayed excess material to be collected in the material collecting groove 101, which is conducive to the recycling of the material.

[0047] When the battery spraying device of this embodiment is used, the driving device drives the cylindrical battery 10 to rotate, and the multiple nozzles 201 spray the outer peripheral surface of the cylindrical battery 10. At the same time, the multiple laser emitters 301 measure the outer peripheral surface of the cylindrical battery 10. After the cylindrical battery 10 rotates one circle, the multiple nozzles 201 stop spraying. At this time, the multiple laser emitters 301 measure the outer peripheral surface of the cylindrical battery 10 again, so that the thickness of the coating on the outer peripheral surface of the cylindrical battery 10 is obtained by the laser scanner equipment.

[0048] The battery spraying device of this embodiment, through the rotation of the cylindrical battery 10, cooperates with the spraying mechanism 2 and the thickness measuring device 3, which can not only improve the automation degree of material spraying, improve production efficiency, and reduce labor costs, but also facilitates the real-time monitoring of the coating thickness, thereby ensuring the consistency of the spraying thickness.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery spraying device, characterized in that: It comprises a bearing platform, and a spraying mechanism and a thickness measuring device arranged on the bearing platform; A connecting piece is rotatably provided on the supporting platform, and the connecting piece is used to fix the end of the cylindrical battery and drive the cylindrical battery to rotate around the axis of the cylindrical battery; The spraying mechanism and the thickness measuring device are arranged at intervals along the circumference of the cylindrical battery. The spraying mechanism is used to spray materials on the outer peripheral surface of the cylindrical battery, and the thickness measuring device is used to measure the thickness of the material sprayed on the outer peripheral surface of the cylindrical battery.

2. The battery spraying device according to claim 1, characterized in that: The connecting member comprises a vacuum suction cup rotatably arranged on the supporting platform, and the vacuum suction cup is provided with a suction hole for adsorbing the end surface of the cylindrical battery.

3. The battery spraying device according to claim 2, characterized in that: The adsorption holes are multiple and arranged at intervals.

4. The battery spraying device according to claim 1, characterized in that: The connecting members are two arranged at intervals along the axial direction of the cylindrical battery, and the two connecting members are respectively used to connect the two ends of the cylindrical battery.

5. The battery spraying device according to claim 1, characterized in that: The spraying mechanism comprises a spray gun having a plurality of nozzles arranged at intervals along the axial direction of the cylindrical battery.

6. The battery spraying device according to claim 5, characterized in that: The distance h between each of the nozzles and the outer peripheral surface of the cylindrical battery satisfies: 3cm≤h≤30cm.

7. The battery spraying device according to claim 1, characterized in that: The spraying mechanism and the thickness measuring device are arranged relatively in the circumferential direction of the cylindrical battery.

8. The battery spraying device according to claim 1, characterized in that: The thickness measuring device adopts a laser scanner.

9. The battery spraying device according to any one of claims 1 to 8, characterized in that: The bearing platform is provided with a material collecting portion for collecting the excess spraying material.

10. The battery spraying device according to claim 9, characterized in that: The material collecting portion comprises a material collecting groove formed on the upper end surface of the supporting platform, and the cylindrical battery is located in the middle of the material collecting groove.

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