Battery spraying device

Abstract

The utility model provides a battery spraying device. The battery spraying device in the embodiment comprises a bearing table for placing a battery in a vertical state, and a spraying mechanism and a thickness measuring device which are arranged on the bearing table, the spraying mechanism is provided with a plurality of spraying parts which are arranged in the circumferential direction of the battery at intervals, the spraying parts can synchronously move in the height direction of the bearing table so as to spray materials to the outer circumferential face of the battery, the thickness measuring device is provided with a plurality of measuring parts which are arranged in the circumferential direction of the battery at intervals, and the measuring parts can synchronously move in the height direction of the bearing table so as to spray materials to the outer circumferential face of the battery. Therefore, the thickness of the material sprayed on the peripheral surface of the battery can be measured. According to the battery spraying device, the automation degree of battery material spraying can be improved, the production efficiency can be improved, the labor cost can be reduced, real-time monitoring of the coating thickness 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 ion battery manufacturing, 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 carrier for placing a cylindrical battery in a vertical state, and a spraying mechanism and a thickness measuring device arranged on the carrier;

[0006] The spraying mechanism has a plurality of spraying parts arranged at intervals along the circumference of the battery, and the plurality of spraying parts can synchronously move along the height direction of the supporting platform to spray materials on the outer peripheral surface of the battery. The thickness measuring device has a plurality of measuring parts arranged at intervals along the circumference of the battery, and the plurality of measuring parts can synchronously move along the height direction of the supporting platform to measure the thickness of the material sprayed on the outer peripheral surface of the battery.

[0007] Furthermore, the support platform has a support end surface for supporting the end of the battery, and a positioning member for positioning the battery in a vertical state is provided on the support platform.

[0008] Furthermore, the positioning member includes a vacuum suction cup for pressing the battery onto the bearing end surface, and the vacuum suction cup has an adsorption hole for adsorbing the end surface of the battery.

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

[0010] Furthermore, the spraying mechanism includes a ring-shaped spray gun; the plurality of spraying parts are a plurality of nozzles arranged at intervals in the circumferential direction of the spray gun.

[0011] Furthermore, the distance h between each of the nozzles and the outer peripheral surface of the battery satisfies: 3 cm ≤ h ≤ 30 cm.

[0012] Furthermore, the supporting platform is provided with a first driving device for driving the multiple spraying parts to move synchronously along the height direction of the supporting platform; and / or, the supporting platform is provided with a second driving device for driving the multiple measuring parts to move synchronously along the height direction of the supporting platform.

[0013] Furthermore, the thickness measuring device includes an annular bracket located outside the spraying mechanism, and the multiple measuring parts include a plurality of laser emitters arranged at intervals in the circumferential direction of the annular bracket.

[0014] Furthermore, the support platform is provided with a material collecting portion for collecting excess spraying material.

[0015] Furthermore, the material collecting portion includes 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.

[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, makes a plurality of spraying parts and a plurality of measuring parts arranged at intervals in the circumferential direction of the battery in a vertical state, and makes the plurality of spraying parts spray materials on the outer peripheral surface of the battery, and the plurality of measuring parts measure the thickness of the material after spraying, thereby improving the automation degree of battery material spraying, improving production efficiency, reducing labor costs, and also facilitating the real-time monitoring of coating thickness, thereby facilitating the consistency of spraying thickness, and having a good use effect.

[0018] In addition, the load-bearing end surface is set to better support the battery, and the positioning piece is set to keep the battery in a vertical state, which is conducive to improving the spraying effect. The positioning piece adopts a vacuum suction cup, which is not only convenient for loading and unloading operations of the battery, but also can better press the battery, and at the same time avoids affecting the spraying effect due to occupying part of the outer peripheral surface of the battery during fixation. There are multiple adsorption holes arranged at intervals, which is conducive to further improving the reliability of adsorption and fixation of the battery end.

[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 battery and ensure the stability of the battery during the rotation process, which is conducive to improving the spraying effect. An annular spray gun is provided, and the spraying part is provided with multiple nozzles arranged at intervals in the circumference of the spray gun, so that the spraying areas of the multiple nozzles can cover the circumference of the battery, and in the process of the multiple nozzles moving up and down, the outer peripheral surface of the battery can be better sprayed.

[0020] In addition, limiting the distance between the nozzle and the outer peripheral surface of the battery can further ensure the spraying quality of the outer peripheral surface of the battery. The setting of the first driving device is conducive to the synchronous movement of multiple spraying parts along the height direction of the carrier platform, which can improve the degree of automation of cylindrical battery spraying. The setting of the second driving device is conducive to the synchronous movement of multiple measuring parts along the height direction of the carrier platform, which can also improve the degree of automation of cylindrical battery spraying. The annular bracket is located on the outside of the spraying mechanism to prevent multiple measuring parts from being sprayed with materials and affecting the accuracy of thickness measurement. The material collection part is set up to collect 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 improve the degree of automation of material spraying, enhance production efficiency, reduce labor costs, and also facilitate real-time monitoring of coating thickness, thereby facilitating 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 for placing batteries in a vertical state, and a spraying mechanism 2 and a thickness measuring device 3 arranged on the carrier 1.

[0032] Among them, the spraying mechanism 2 has a plurality of spraying parts arranged at intervals along the circumference of the battery, and the plurality of spraying parts can synchronously move along the height direction of the supporting platform 1 to spray materials on the outer peripheral surface of the battery. The thickness measuring device 3 has a plurality of measuring parts arranged at intervals along the circumference of the battery, and the plurality of measuring parts can synchronously move along the height direction of the supporting platform 1 to measure the thickness of the material sprayed on the outer peripheral surface of the cylindrical battery.

[0033] At this time, by arranging multiple spraying parts and multiple measuring parts at circumferential intervals on the vertical battery, and making the multiple spraying parts spray materials on the outer peripheral surface of the battery, and the multiple measuring parts measure the thickness of the material after spraying, the automation degree of battery material spraying can be improved, the production efficiency can be improved, the labor cost can be reduced, and it is also conducive to the real-time monitoring of the coating thickness, thereby ensuring the consistency of the spraying thickness.

[0034] It should be noted that the battery spraying device of this embodiment can be applied to cylindrical batteries 10, and can also be applied to square shell batteries or batteries of other shapes. For the cylindrical battery 10, its vertical state specifically refers to the state in which the axis of the cylindrical battery 10 is perpendicular to the support platform 1, that is, the state in which the end of the cylindrical battery 10 is in contact with the support platform 1. For the square shell battery, its vertical state specifically refers to the large surface of the square shell battery being perpendicular to the load-bearing end surface of the support platform. It should also 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 battery.

[0035] The battery spraying device of this embodiment is described in detail below by taking the cylindrical battery 10 as an example.

[0036] For more details, see Figure 1 and Figure 2 In this embodiment, the carrier 1 has a carrier end surface for supporting the end of the cylindrical battery 10. The end of the cylindrical battery 10 is placed on the carrier end surface and maintained in a vertical state. In order to improve the stability of the cylindrical battery 10 on the carrier 1 and keep the cylindrical battery 10 in a vertical state, in this embodiment, as a preference, a positioning member is also provided on the carrier 1, and the cylindrical battery 10 is positioned on the carrier 1 by the positioning member.

[0037] Specifically, the positioning member includes a vacuum suction cup 4 for pressing the cylindrical battery 10 onto the bearing end surface, wherein the vacuum suction cup 4 has a suction hole for sucking the end surface of the cylindrical battery 10. The vacuum suction cup 4 can apply a downward pressing force to the cylindrical battery 10 placed on the bearing end surface, so that the cylindrical battery 10 can be better maintained in a vertical state. And the suction hole set on the vacuum suction cup 4 can suck and fix the upper end surface of the cylindrical battery 10, which is convenient for loading and unloading operations of the cylindrical battery 10.

[0038] Preferably, in this embodiment, the adsorption holes are multiple and arranged at intervals. The provision of multiple adsorption holes can further improve the reliability of adsorption and fixation of the end of the cylindrical battery 10.

[0039] The spraying mechanism 2 of this embodiment includes a ring-shaped spray gun, and the plurality of spraying parts are a plurality of nozzles 201 arranged at intervals in the circumferential direction of the spray gun. The plurality of nozzles 201 arranged at this time can make the spraying area of ​​the plurality of nozzles 201 cover the circumference of the cylindrical battery 10, and in the process of the plurality of nozzles 201 moving up and down, the outer peripheral surface of the cylindrical battery 10 can be better sprayed.

[0040] As a preferred embodiment, 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] In order to facilitate the synchronous movement of multiple spraying parts along the height direction of the carrier, that is, the axial direction of the cylindrical battery 10, in this embodiment, a first driving device is provided on the carrier 1, and the power output end of the first driving device is connected to the annular spray gun. The first driving device can be, for example, a cylinder, an oil cylinder or a linear module, etc., and driven by the first driving device, the annular spray gun moves along the axial direction of the cylindrical battery 10, and drives the multiple nozzles 201 on the spray gun to move synchronously along the axial direction of the cylindrical battery 10.

[0042] In order to facilitate the synchronous movement of multiple measuring parts along the axial direction of the cylindrical battery 10, in this embodiment, a second driving device is provided on the carrier 1, and the power output end of the second driving device is connected to the annular bracket. The second driving device can also be, for example, a cylinder, an oil cylinder or a linear module, etc., and driven by the second driving device, the annular bracket moves along the axial direction of the cylindrical battery 10, and drives the multiple measuring parts on the annular bracket to move synchronously along the axial direction of the cylindrical battery 10.

[0043] The thickness measuring device 3 of this embodiment includes an annular bracket located outside the spraying mechanism 2, and the multiple measuring parts include multiple laser emitters 301 arranged at intervals in the circumferential direction of the annular bracket. In specific implementation, the annular bracket is driven by the second driving device to move along the axial direction of the cylindrical battery at a certain speed. During the movement, 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 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 thickness measuring device 3 of this embodiment can be, for example, a laser scanner, which 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 the thickness of a coating using a laser can be implemented using existing mature technologies.

[0045] It is worth noting that for the cylindrical battery 10, the structure of the spray gun is preferably set to a circular ring, and the multiple nozzles arranged at intervals are also distributed in a circular ring. The annular bracket in the thickness measuring device is also preferably set to a circular ring, and the multiple laser emitters arranged at intervals are also distributed in a circular ring. For square shell batteries, the structure of the spray gun is preferably set to a rectangular ring, and the multiple nozzles are also distributed in a rectangular shape. The corresponding annular bracket in the thickness measuring device is also matched with the structure of the square shell battery into a rectangular ring, and the multiple laser emitters are also distributed in a rectangular shape. In this way, the distance between the nozzle and the outer peripheral surface of the battery, as well as the distance between the thickness measuring device and the outer peripheral surface of the battery can be guaranteed.

[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] The battery spraying device of this embodiment, when used, first drives the multiple measuring parts to move from bottom to top or from top to bottom along the axial direction of the cylindrical battery 10 through the second driving device to measure the outer peripheral surface of the cylindrical battery 10. Then, the multiple spraying parts are driven by the first driving device to move from bottom to top or from top to bottom along the axial direction of the cylindrical battery 10, and during the movement, the multiple spraying parts spray insulating materials on the outer peripheral surface of the cylindrical battery 10. After spraying, the second driving device drives the multiple measuring parts to move from bottom to top or from top to bottom along the axial direction of the cylindrical battery 10, and the outer peripheral surface of the cylindrical battery 10 is measured again, and the thickness of the coating on the outer peripheral surface of the cylindrical battery 10 is obtained by the laser scanner device.

[0048] The battery spraying device of this embodiment, by arranging multiple spraying parts and multiple measuring parts on the circumference of the cylindrical battery 10, and coordinating the synchronous movement of the multiple spraying parts along the axial direction of the cylindrical battery 10, and the synchronous movement of the multiple measuring parts along the axial direction of the cylindrical battery 10, can not only improve the degree of automation of material spraying of the cylindrical battery 10, improve production efficiency, and reduce labor costs, but also facilitate 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 includes a carrying platform for placing batteries in a vertical state, and a spraying mechanism and a thickness measuring device arranged on the carrying platform; The spraying mechanism has a plurality of spraying parts arranged at intervals along the circumference of the battery, and the plurality of spraying parts can synchronously move along the height direction of the supporting platform to spray materials on the outer peripheral surface of the battery. The thickness measuring device has a plurality of measuring parts arranged at intervals along the circumference of the battery, and the plurality of measuring parts can synchronously move along the height direction of the supporting platform to measure the thickness of the material sprayed on the outer peripheral surface of the battery.

2. The battery spraying device according to claim 1, characterized in that: The support platform has a support end surface for supporting the end of the battery, and a positioning member for positioning the battery in a vertical state is provided on the support platform.

3. The battery spraying device according to claim 2, characterized in that: The positioning member comprises a vacuum suction cup for pressing the battery onto the bearing end surface, and the vacuum suction cup has a suction hole for sucking the end surface of the battery.

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

5. The battery spraying device according to claim 1, characterized in that: The spraying mechanism comprises a ring-shaped spray gun; The plurality of spraying parts are a plurality of nozzles arranged at intervals in the circumferential direction of the spray gun.

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 battery satisfies: 3 cm ≤ h ≤ 30 cm.

7. The battery spraying device according to claim 1, characterized in that: The carrier platform is provided with a first driving device which drives the plurality of spraying parts to move synchronously along the height direction of the carrier platform; and / or, The carrying platform is provided with a second driving device which drives the plurality of measuring parts to move synchronously along the height direction of the carrying platform.

8. The battery spraying device according to claim 1, characterized in that: The thickness measuring device comprises an annular bracket located outside the spraying mechanism, and the plurality of measuring parts comprises a plurality of laser emitters arranged at intervals in the circumferential direction of the annular bracket.

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 carrying platform, and the battery is located in the middle of the material collecting groove.

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