Thermal shrinkage equipment for outer plastic film of battery
By combining a support plate, a hot air hood, and a conveyor belt, the problem of uneven heating in the heat shrink equipment for outer plastic film is solved, achieving uniform wrapping of the battery by the outer plastic film and reliable fixation of the iron base, thus improving the wrapping quality and pressing reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FULLWIN BATTERY
- Filing Date
- 2024-12-11
- Publication Date
- 2026-05-15
AI Technical Summary
Existing heat shrink equipment for battery outer plastic film has problems such as uneven heating of the outer plastic film, resulting in poor wrapping quality and insufficient reliability of iron base clamping.
The structure employs a support plate, a hot air hood, and a conveyor belt. The conveyor belt causes the battery to roll relative to the support plate, while the hot air hood blows hot air to achieve uniform heating and shrinkage of the outer plastic film. Combined with a lifting component, the height of the hot air hood is adjusted to ensure that the outer plastic film evenly wraps the battery and reliably fixes it to the iron base.
This improves the quality of the outer plastic film wrapping the battery and the reliability of the iron base clamping, ensuring that the rear end of the outer plastic film is reliably wrapped around the outer edge of the iron base at the rear end of the battery, thus achieving reliable battery fixation.
Smart Images
Figure CN224241437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery production equipment technology, and more specifically, to a heat shrinking device for battery outer plastic film. Background Technology
[0002] After assembling the metal base at the bottom of the battery and covering it with an outer plastic film, the outer plastic film needs to be heated. When heated, the outer plastic film wraps around the battery, with its lower end covering the outer edge of the metal base so that the metal base is in close contact with the bottom of the battery. Currently available heat-shrinkable equipment for the outer plastic film includes an oven and a conveyor belt. The oven is fixed to the conveyor belt. When the battery with the pre-installed outer plastic film is fed into the oven via the conveyor belt, the outer plastic film is heated and shrinks, wrapping around the battery and ensuring its lower end covers the outer edge of the metal base. However, in the aforementioned existing heat-shrinkable equipment structure… Because the conveyor belt can only transport batteries pre-wrapped with outer plastic film, the batteries do not roll relative to the conveyor belt. As a result, when the batteries are put into the oven, the outer plastic film at the top of the battery receives more heat than the outer plastic film at the bottom, resulting in uneven heating. This can lead to the outer plastic film shrinking and developing sharp edges, and the inability to reliably press the metal base against the bottom of the battery. In other words, the outer plastic film has poor battery wrapping quality and poor reliability in pressing against the metal base. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a heat shrinking device for battery outer plastic film, which can improve the quality of the outer plastic film wrapping the battery and improve the reliability of the outer plastic film pressing the iron base to the rear end of the battery.
[0004] This utility model provides a heat shrinking device for battery outer plastic film, including a support plate, a hot air hood, and a conveyor belt; the support plate is used to support the battery pre-installed with an outer plastic film, the conveyor belt is set above the support plate and is used to transport the battery so that the battery rolls from left to right relative to the support plate, the hot air hood is set above the conveyor belt and is used to blow hot air toward the battery so that the outer plastic film pre-installed on the outside of the battery shrinks, and the air inlet of the hot air hood is connected to the air outlet of the hot air blower through a hot air pipe.
[0005] By adopting the above-described structure, when the conveyor belt transports the battery pre-installed with an outer plastic film on the support plate, the battery can roll from left to right relative to the support plate. This allows the outer plastic film to be evenly heated and shrink during the hot air blowing process, ensuring reliable wrapping of the battery and guaranteeing that the rear end of the outer plastic film reliably wraps around the outer edge of the iron base at the rear end of the battery, thus reliably fixing the iron base to the battery. This invention improves the quality of the outer plastic film wrapping the battery and enhances the reliability of the outer plastic film pressing the iron base firmly against the rear end of the battery.
[0006] In one possible implementation, the conveyor belt includes two chains arranged symmetrically front to back. One end of each chain is connected to the output shaft of a motor via a transmission assembly. Several stop bars are spaced apart between the two chains from left to right. Each stop bar extends from front to back, and both ends of each stop bar are connected to one of the chains. Each pair of adjacent stop bars and the two chains form a grid for accommodating batteries. With this structure, when the motor drives the two chains synchronously via the transmission assembly, the two chains can drive the stop bars to move from left to right. When several levers move from left to right, the batteries in each grid hole can be pushed by the levers. At this time, the batteries pre-fitted with the outer plastic film can roll from left to right relative to the support plate. When the batteries roll, and as the hot air blows hot air onto the batteries, the outer plastic film pre-fitted on the outside of the batteries can be heated and contracted evenly, so that the outer plastic film can reliably wrap the batteries and ensure that the rear end of the outer plastic film can reliably wrap around the outer edge of the iron base at the rear end of the batteries, that is, at the same time, the iron base can be reliably fixed to the batteries.
[0007] In one possible implementation, the distance between the two chains is greater than the length of the battery, and the distance between each pair of adjacent stops is greater than the outer diameter of the battery but less than the length of the battery. With this structure, when the stops push the battery located in the grid holes, the battery can reliably roll from left to right relative to the support plate. And since the distance between each pair of adjacent stops is greater than the outer diameter of the battery but less than the length of the battery, the battery can be prevented from turning around when the stops push the battery.
[0008] In one possible implementation, the hot air shroud is connected to the support plate via a lifting assembly, which is used to adjust the distance between the hot air shroud and the battery located on the support plate. With this structure, the height of the hot air shroud can be adjusted to a suitable state under the action of the lifting assembly, that is, the distance between the hot air shroud and the battery located on the support plate can be adjusted to a suitable state, so that the hot air shroud can heat the outer plastic film pre-fitted on the outside of the battery at a suitable temperature.
[0009] In one possible implementation, the lifting assembly includes four telescopic rods located at the four corners of the lower end of the hot air hood; each telescopic rod includes an outer rod body and an inner rod body; the lower end of the outer rod body is fixed to a support plate, the lower end of the inner rod body is movably inserted into the upper end of the outer rod body and can extend and retract relative to the outer rod body, the upper end of the inner rod body is fixed to the lower end of the hot air hood, and a hand-tightening bolt threaded to the outer rod body is provided on the side wall of the upper end of the outer rod body, the inner end of the hand-tightening bolt abutting against the outer side wall of the inner rod body to lock the inner rod body and the outer rod body; by adopting this... After the lifting assembly is installed, when all the hand-tightened bolts in each telescopic rod are loosened, each inner rod can extend and retract relative to the corresponding outer rod, thereby adjusting the height of the hot air shroud to a suitable level. After the height of the hot air shroud is adjusted, all the hand-tightened bolts are tightened again to secure the inner and outer rods. At this point, the height of the hot air shroud can be maintained at the adjusted height, allowing the hot air shroud to heat the outer plastic film pre-installed on the outside of the battery at a suitable temperature. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 A top view of the structure when a battery is conveyed on a support plate by a conveyor belt. Detailed Implementation
[0012] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0013] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0014] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0015] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0016] See Figure 1-2 As shown in the figure, this application discloses a heat shrinking device for battery outer plastic film, including a support plate 1, a hot air hood 2, and a conveyor belt 3; the support plate 1 is used to support the battery 4 pre-installed with an outer plastic film, the conveyor belt 3 is arranged above the support plate 1 and is used to transport the battery 4 so that the battery 4 rolls from left to right relative to the support plate 1, the hot air hood 2 is arranged above the conveyor belt 3 and is used to blow hot air toward the battery 4 so that the outer plastic film pre-installed on the outside of the battery 4 shrinks, and the air inlet of the hot air hood 2 is connected to the air outlet of the hot air blower through a hot air pipe 21.
[0017] The conveyor belt 3 includes two chains 31 arranged symmetrically front to back. One end of each chain 31 is connected to the output shaft of a motor via a transmission assembly. Several baffles 32 are spaced apart between the two chains 31 from left to right. Each baffle 32 extends from front to back, and both ends of each baffle 32 are connected to one of the chains 31. Each pair of adjacent baffles 32 and the two chains 31 form a grid 33 for accommodating the battery 4. With this structure, when the motor drives the two chains synchronously via the transmission assembly, the two chains can drive the baffles to move from left to right. As the baffles move from left to right, the position... The batteries in each cell can be pushed by the stop bar. At this time, the batteries pre-fitted with the outer plastic film can roll from left to right relative to the support plate. When the batteries roll, and as the hot air blows hot air onto the batteries, the outer plastic film pre-fitted on the outside of the batteries can be heated and shrink evenly, so that the outer plastic film can reliably wrap the batteries and ensure that the rear end of the outer plastic film can reliably wrap around the outer edge of the iron base at the rear end of the batteries, that is, at the same time, it can reliably fix the iron base to the batteries. In addition, the above-mentioned structure of using a motor and transmission components to drive the chain to operate synchronously is the existing technology on the market, so it will not be described in detail here.
[0018] The distance between the two chains 31 is greater than the length of the battery 4, and the distance between each pair of adjacent stop bars 32 is greater than the outer diameter of the battery 4 and less than the length of the battery 4. With this structure, when the stop bar pushes the battery located in the grid hole, the battery can reliably roll from left to right relative to the support plate. And since the distance between each pair of adjacent stop bars is greater than the outer diameter of the battery and less than the length of the battery, the battery can be prevented from turning around when the stop bar pushes the battery.
[0019] The hot air shroud 2 is connected to the support plate 1 via a lifting assembly. The lifting assembly is used to adjust the distance between the hot air shroud 2 and the battery 4 located on the support plate 1. With this structure, the height of the hot air shroud can be adjusted to a suitable state under the action of the lifting assembly, so that the distance between the hot air shroud and the battery located on the support plate can be adjusted to a suitable state, so that the hot air shroud can heat the outer plastic film pre-fitted on the outside of the battery at a suitable temperature.
[0020] The lifting assembly includes four telescopic rods 5 located at the four corners of the lower end of the hot air hood 2. Each telescopic rod 5 includes an outer rod body 51 and an inner rod body 52. The lower end of the outer rod body 51 is fixed to the support plate 1. The lower end of the inner rod body 52 is movably inserted into the upper end of the outer rod body 51 and can extend and retract relative to the outer rod body 51. The upper end of the inner rod body 52 is fixed to the lower end of the hot air hood 2. A hand-tightening bolt 53 is threaded onto the side wall of the upper end of the outer rod body 51. The inner end of the hand-tightening bolt 53 abuts against the outer side wall of the inner rod body 52 to lock the inner rod body 52 and the outer rod body 52. Body 51; By adopting this lifting assembly, when all the hand-tightened bolts in each telescopic rod are loosened, each inner rod can extend and retract relative to the corresponding outer rod, thereby achieving the adjustment of the height of the hot air shroud to a suitable state. After the height of the hot air shroud is adjusted, all the hand-tightened bolts are tightened again to secure the inner rod to the outer rod. At this time, the height of the hot air shroud can be maintained at the adjusted height, thereby enabling the hot air shroud to heat the outer plastic film pre-installed on the outside of the battery at a suitable temperature.
[0021] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A heat-shrinking device for battery outer plastic film, characterized in that: It includes a support plate (1), a hot air hood (2), and a conveyor belt (3); the support plate (1) is used to carry the battery (4) pre-fitted with an outer plastic film, the conveyor belt (3) is arranged above the support plate (1) and is used to transport the battery (4) so that the battery (4) rolls from left to right relative to the support plate (1), the hot air hood (2) is arranged above the conveyor belt (3) and is used to blow hot air toward the battery (4) so that the outer plastic film pre-fitted on the outside of the battery (4) shrinks, and the air inlet of the hot air hood (2) is connected to the air outlet of the hot air blower through a hot air pipe (21).
2. The battery outer plastic film heat shrinking device according to claim 1, characterized in that: The conveyor belt (3) includes two chains (31) arranged symmetrically front to back. One end of the two chains (31) is connected to the output shaft of the motor through a transmission assembly. Several baffles (32) are arranged between the two chains (31) at intervals from left to right. Each baffle (32) extends from front to back. Both ends of each baffle (32) are connected to one of the chains (31). Each pair of adjacent baffles (32) and the two chains (31) form a grid hole (33) for accommodating the battery (4).
3. The battery outer plastic film heat shrinking device according to claim 2, characterized in that: The distance between the two chains (31) is greater than the length of the battery (4), and the distance between each pair of adjacent stops (32) is greater than the outer diameter of the battery (4) and less than the length of the battery (4).
4. The battery outer plastic film heat shrinking device according to any one of claims 1-3, characterized in that: The hot air shroud (2) is connected to the support plate (1) by a lifting assembly, which is used to adjust the distance between the hot air shroud (2) and the battery (4) located on the support plate (1).
5. The battery outer plastic film heat shrinking device according to claim 4, characterized in that: The lifting assembly includes four telescopic rods (5) located at the four corners of the lower end of the hot air hood (2); each telescopic rod (5) includes an outer rod body (51) and an inner rod body (52); the lower end of the outer rod body (51) is fixed to the support plate (1), the lower end of the inner rod body (52) is movably inserted into the upper end of the outer rod body (51) and can extend and retract relative to the outer rod body (51), the upper end of the inner rod body (52) is fixed to the lower end of the hot air hood (2), and a hand-tightening bolt (53) threadedly connected to the outer rod body (51) is provided on the side wall of the upper end of the outer rod body (51), the inner end of the hand-tightening bolt (53) abuts against the outer side wall of the inner rod body (52) to lock the inner rod body (52) and the outer rod body (51).