A battery shell spraying hanger

Abstract

The application discloses a battery shell spraying hanger and belongs to the technical field of battery shell production. Mainly including a hanger and a fixing rod, the lower end of the fixing rod is provided with a positioning frame, the two sides of the positioning frame are provided with drying mechanisms, the drying mechanism comprises an extension frame arranged on one side of the positioning frame, the extension frame is provided with a mounting frame, the mounting frame is provided with a cover, the cover is internally provided with an electric heating wire, and a fan is arranged on one side of the cover. The battery shell spraying hanger can realize synchronous and directional curing of the surface paint of the battery shell during conveying through the drying mechanism arranged on the hanger body and capable of being folded and unfolded, so that the production cycle is greatly shortened, the occupied area is reduced, and the energy consumption is reduced.

Description

Technical Field

[0001] This application relates to the field of battery casing manufacturing technology, specifically a battery casing spraying fixture. Background Technology

[0002] In the manufacturing process of lithium-ion batteries, the surface treatment of the battery casing (usually a square aluminum casing or a cylindrical steel casing) is a crucial step. In order to achieve the purposes of insulation, corrosion prevention, wear resistance and aesthetics, it is usually necessary to spray a uniform layer of insulating paint or decorative paint on its outer surface.

[0003] Currently, the mainstream production process for automated spraying of battery casings in the industry is as follows: First, the battery casings to be sprayed are fixed one by one on a dedicated spraying fixture; then, a sprocket and chain conveyor system continuously transports the fixtures fully loaded with casings into a closed spray booth; in the spray booth, multiple automatic spray guns precisely spray the battery casings that pass through at a uniform speed according to a preset program; after spraying is completed, the fixture carries the battery casings with wet paint on their surface out of the spray booth and enters the subsequent paint film curing stage;

[0004] For example, the patent with publication number CN216368536U discloses a battery casing spraying protective hanger. This patent can lift two aluminum shells at a time by using a fixed casting and protective tape, and the aluminum shells are sealed by the protective tape. During the process of immersing the outer surface of the aluminum shell in the bath liquid and spraying, the inside of the aluminum shell will not be contaminated.

[0005] After the actual spraying is completed, the paint surface needs to be cured. This involves running the sprayed hanger above the conveyor line and relying on the natural airflow to evaporate the solvent. However, this method requires an extremely long curing time and is severely affected by changes in ambient temperature and humidity, resulting in long production cycles and a large backlog of work-in-progress.

[0006] Therefore, it is necessary to provide a battery casing spraying fixture to solve the above problems.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0008] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a battery casing spraying fixture, which solves the problems of long production cycle, high energy consumption and large footprint caused by the need for long-term natural drying of paint after battery casing spraying.

[0009] The technical solution adopted by this application to solve its technical problem is: a battery casing spraying fixture, comprising:

[0010] Fixed rod;

[0011] A positioning frame is disposed at the lower end of the fixing rod;

[0012] A drying mechanism is disposed on both sides of the positioning frame, and the drying mechanism includes:

[0013] An extension frame is disposed on one side of the positioning frame;

[0014] Mounting bracket, which is mounted on the extension bracket;

[0015] A housing, which is mounted on the mounting bracket;

[0016] A heating wire, which is disposed inside the housing;

[0017] A fan is located on one side of the housing.

[0018] Furthermore, the extension frame is fixed with fixed seats at both ends away from the positioning frame, and the mounting frame is rotatably disposed between the fixed seats.

[0019] Furthermore, a motor is fixedly mounted on the end of the extension frame, and the output shaft of the motor passes through the fixed base on the same side and is fixedly connected to the corresponding end of the mounting frame.

[0020] Furthermore, a housing is fixedly installed at the lower end of the fixing rod, the positioning frame is located at the lower end of the housing, an electric cylinder is fixedly installed inside the housing, the output end of the electric cylinder extends downward and passes through the top of the positioning frame into its internal space, and a pressure plate is fixedly connected to the end of the output shaft of the electric cylinder.

[0021] Furthermore, abutment rollers are symmetrically installed on both sides of the lower end of the positioning frame.

[0022] Furthermore, the power connection end of the heating wire extends through the cover wall to the outside.

[0023] Furthermore, a grille is provided on the other side of the cover.

[0024] Furthermore, a protective cover is provided on the side of the casing near the fan, and heat dissipation holes are provided on both sides of the protective cover.

[0025] The beneficial effects of this application are: the battery casing spraying fixture provided by this application, through the drying mechanism that can be retracted and unfolded on the fixture body, realizes the synchronous and directional curing of paint on the surface of the battery casing during the transportation process, thereby achieving the effects of significantly shortening the production cycle, reducing the floor space and reducing energy consumption.

[0026] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is an overall schematic diagram of a battery casing spraying fixture according to this application;

[0029] Figure 2 for Figure 1 A schematic diagram of the mounting bracket;

[0030] Figure 3 for Figure 1 A diagram illustrating the explosion of the central mounting bracket;

[0031] Figure 4 for Figure 1 A partial view of the explosion of the central mounting bracket from another angle;

[0032] The following are the labeling elements in the figure:

[0033] 1. Frame; 2. Conveying mechanism; 20. Chain; 3. Hanger; 30. Housing; 31. Positioning frame; 32. Electric cylinder; 33. Pressure plate; 34. Supporting roller; 35. Fixing rod; 4. Drying mechanism; 40. Extension frame; 42. Fixing base; 43. Mounting frame; 44. Cover; 45. Heating wire; 46. Fan; 47. Grille; 48. Motor; 49. Protective cover. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0036] like Figure 1As shown, the battery casing spraying fixture provided in this application is mainly installed on the battery casing spraying production line. It is used to carry and fix the battery casing during the conveying process, so that it passes through the spraying station in sequence to complete the surface painting operation. Specifically, it includes a frame 1 and a transmission mechanism 2 installed on the upper part of the frame 1. The transmission mechanism 2 is a sprocket and chain transmission system in the prior art that is applicable to this embodiment. The transmission mechanism 2 has a chain 20. After the transmission mechanism 2 is started, the chain 20 can be driven to run continuously on the frame 1, thereby realizing the effect of conveying the battery casing from the previous station to the spraying station and then to the subsequent station.

[0037] To support and secure the battery casing, such as Figures 1-3 As shown, at least two sets of hangers 3 are suspended on the chain 20. Each hanger 3 includes a fixed rod 35 fixedly connected to the lower end of the chain 20. A housing 30 is fixedly installed at the lower end of the fixed rod 35, and a positioning frame 31 is fixedly connected to the lower end of the housing 30, so that the operator or automated equipment can insert the battery housing into the internal space of the positioning frame 31.

[0038] To ensure that the battery casing does not come loose from the positioning frame 31 during high-speed operation and spraying, an electric cylinder 32 is fixedly installed inside the casing 30. The output end of the electric cylinder 32 extends downward and passes through the top of the positioning frame 31 into its internal space. At the same time, a pressure plate 33 is fixedly connected to the end of the output shaft of the electric cylinder 32.

[0039] After the battery casing is placed into the positioning frame 31, the control cylinder 32 is activated, causing its output shaft to extend downwards and drive the pressure plate 33 to press firmly against the top of the battery casing, thereby achieving reliable fixation of the battery casing and effectively preventing it from falling off due to shaking or vibration in subsequent processes.

[0040] In order to provide auxiliary support and guidance for the bottom or side walls of the battery housing during the conveying process and to reduce friction, abutment rollers 34 are symmetrically installed on both sides of the lower end of the positioning frame 31 to keep the battery housing stable during installation.

[0041] To instantly cure the paint on the battery casing surface that has been sprayed but not yet cured, thus saving the long natural drying time or the need for a dedicated, large drying tunnel, such as... Figures 1-4As shown, a drying mechanism 4 is provided on both sides of the positioning frame 31. The drying mechanism 4 includes an extension frame 40 fixedly installed on the side of the positioning frame 31. The extension frame 40 extends horizontally outward, and fixed seats 42 are fixed at both ends of the extension frame 40 away from the positioning frame 31. A mounting frame 43 is rotatably installed between the two fixed seats 42 via bearings. At the same time, a motor 48 is fixedly installed at the end of the extension frame 40. The output shaft of the motor 48 passes through the fixed seat 42 on the same side and is fixedly connected to the corresponding end of the mounting frame 43. Thus, when the motor 48 is started, the entire mounting frame 43 can be driven to rotate around the axis formed by the fixed seat 42.

[0042] It should be noted that when the hanger 3 moves to the spraying station and is carrying out the spraying operation, the motor 48 is controlled to rotate the mounting bracket 43 to a position roughly parallel to the extension bracket 40, that is, to make the mounting bracket 43 close to the extension bracket 40 and retract it, thereby reducing the space occupied by the drying mechanism 4, effectively avoiding its interference with the spray gun path, and ensuring the normal and efficient operation of the spraying operation.

[0043] When the spraying work on one side is completed and the hanger 3 is about to leave the spraying station, the motor 48 can be started again to drive the mounting bracket 43 to rotate 90 degrees, so that it changes from the retracted state to a position that is perpendicular to the extension bracket 40, that is, parallel to the positioning frame 31 and the surface of the battery casing fixed on it, in preparation for the next immediate drying operation.

[0044] Furthermore, a cover 44 is fixedly installed on the mounting bracket 43. An electric heating wire 45 is fixedly installed inside the cover 44. The electric heating wire 45 serves as a heat source generator. Its power connection end extends through the wall of the cover 44 to the outside so as to connect with the power supply sliding contact line or other power supply device that follows the conveyor line, thereby generating heat when needed.

[0045] In order to force and direct the heat generated by the heating wire 45 to the paint surface of the battery casing, a fan 46 is fixedly installed on one side wall panel of the casing 44. When the fan 46 is running, it blows out the hot air inside the casing 44 in the form of an airflow. In order to ensure the uniformity of the airflow, a grille 47 is provided on the other side wall panel of the casing 44. The grille 47 is an electric louver disclosed in CN210289558U, so that the grille 47 can be opened during the drying operation, so that the hot air can be blown out evenly and dispersed, avoiding concentrated direct blowing that causes defects such as ripples in the paint film. The grille 47 can also be closed during the painting operation to prevent external dust or paint mist from entering the interior of the casing 44 and contaminating the heating wire 45 or the fan 46.

[0046] It should be noted that a protective cover 49 is provided on the side of the cover 44 near the fan 46. The protective cover 49 is used to prevent contamination of the heating wire 45 or the fan 46 inside the cover 44 during the painting process. At the same time, heat dissipation holes (not shown in the figure) are provided on both sides of the protective cover 49. The heat dissipation holes are used to provide heat dissipation and ventilation for the fan 46 when it is started.

[0047] Thus, when one surface of the battery casing is finished being sprayed at the spraying station, the hanger 3 leaves the spraying area under the drive of the transmission mechanism 2. At this time, the control system immediately commands the motor 48 to start, driving the mounting bracket 43 and the cover 44 on it to rotate until the cover 44 with the grid 47 faces the wet paint surface that has just been sprayed.

[0048] Subsequently, the control system simultaneously starts the fan 46 and the heating wire 45. The airflow generated by the fan 46 passes through the area heated by the heating wire 45, becomes uniform hot air, and is blown onto the wet paint surface of the battery casing through the grille 47, thereby achieving the goal of starting and accelerating the curing process of the paint film during the transportation process.

[0049] Once the other side of the battery casing has also been coated, simply repeat the above operation, adjust the angle of the drying mechanism 4 on the other side or the same side, and cure the new coated surface. This greatly shortens the production cycle, improves production efficiency, and saves the valuable factory space required for a separate drying tunnel.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery casing spraying fixture, comprising a fixture (3), characterized in that: Fixed rod (35); Positioning frame (31), which is located at the lower end of the fixing rod (35); A drying mechanism (4) is disposed on both sides of the positioning frame (31), and the drying mechanism (4) includes: An extension frame (40) is provided on one side of the positioning frame (31); Mounting bracket (43) is mounted on the extension bracket (40); A housing (44) is mounted on the mounting bracket (43); Heating wire (45) is disposed inside the housing (44); A fan (46) is disposed on one side of the housing (44).

2. The battery casing spraying fixture according to claim 1, characterized in that: The extension frame (40) has fixed bases (42) at both ends away from the positioning frame (31), and the mounting frame (43) is rotatably disposed between the fixed bases (42).

3. A battery casing spraying fixture according to claim 2, characterized in that: A motor (48) is fixedly installed at the end of the extension frame (40). The output shaft of the motor (48) passes through the fixed seat (42) on the same side and is fixedly connected to the corresponding end of the mounting frame (43).

4. A battery casing spraying fixture according to claim 1, characterized in that: The lower end of the fixed rod (35) is fixedly provided with a housing (30), the positioning frame (31) is provided at the lower end of the housing (30), the electric cylinder (32) is fixedly installed inside the housing (30), the output end of the electric cylinder (32) extends downward and passes through the top of the positioning frame (31) into its internal space, and the end of the output shaft of the electric cylinder (32) is fixedly connected with a pressure plate (33).

5. A battery casing spraying fixture according to claim 1, characterized in that: The positioning frame (31) is also symmetrically equipped with abutment rollers (34) on both sides of its lower end.

6. A battery casing spraying fixture according to claim 1, characterized in that: The power connection end of the heating wire (45) extends through the wall of the cover (44) to the outside.

7. A battery casing spraying fixture according to claim 1, characterized in that: A grille (47) is provided on the other side of the cover (44).

8. A battery casing spraying fixture according to claim 1, characterized in that: The cover (44) is provided with a protective cover (49) on the side near the fan (46), and heat dissipation holes are provided on both sides of the protective cover (49).

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