Lithium battery film coating device

Abstract

The utility model discloses a lithium battery enveloping device which comprises a base, an unwinding mechanism, a roller passing mechanism and an enveloping mechanism, and the unwinding mechanism, the roller passing mechanism and the enveloping mechanism are sequentially arranged on the base. The unwinding mechanism is used for unwinding the coating film; the roller passing mechanism is used for guiding the coating film to the film coating mechanism; and the film wrapping mechanism comprises film wrapping seats and smoothing rollers, the two film wrapping seats are arranged on the base, a gap is formed between the two film wrapping seats, and the smoothing rollers capable of rotating are arranged on the opposite sides of the two film wrapping seats. The lithium battery coating device has the advantages that the structure is simple, the operation is convenient, and the coating efficiency and quality of the lithium battery are improved.

Description

Technical Field

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

[0002] In order to prevent surface scratches and leakage of lithium batteries during subsequent transportation and assembly, a single-sided sticky insulating film is usually coated on the surface of the lithium battery, which can also play a role in waterproofing and dustproofing, thereby better protecting the lithium battery. At present, many domestic lithium battery companies still rely on manual or low-automation processes to complete this link. The surface of the battery cell after coating not only has problems such as bubbles and wrinkles, which bring safety hazards, but also has low efficiency and high cost. In addition, a lithium battery coating device is generally only suitable for coating one type of battery cell and is not compatible with batteries of different sizes. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to improve the coating efficiency and quality of lithium batteries.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A lithium battery coating device comprises a base, a reeling mechanism, a roller mechanism and a coating mechanism, wherein the base is provided with the reeling mechanism, the roller mechanism and the coating mechanism in sequence;

[0006] The unwinding mechanism is used for unwinding the coating film; the roller mechanism is used for guiding the coating film onto the coating mechanism;

[0007] The film coating mechanism comprises a film coating seat and a smoothing roller. Two groups of film coating seats are arranged on the base, there is a distance between the two groups of film coating seats, and rotatable smoothing rollers are arranged on opposite sides of the two groups of film coating seats.

[0008] The lithium battery coating device is not only simple in structure and easy to operate, but also only needs to cut the coating film of corresponding length on the coating mechanism, and place the lithium battery vertically between the coating seats, and use the gravity of the lithium battery itself to complete the coating, while avoiding the problems of bubbles and wrinkles generated in the manual coating process; this coating method greatly saves manpower and significantly improves the efficiency and quality of lithium battery coating.

[0009] Preferably, the unwinding mechanism comprises supporting and fixing rods and an unwinding shaft, two groups of supporting and fixing rods are vertically arranged on the base, and a rotatable unwinding shaft is arranged between the supporting and fixing rods.

[0010] Preferably, the unwinding mechanism also includes a swing arm, a swing arm roller and an unwinding limit block. The two groups of supporting fixed rods are respectively provided with rotatable swing arms, a swing arm roller is provided between the two groups of swing arms, and two groups of slidable unwinding limit blocks are also sleeved on the swing arm roller.

[0011] Preferably, grooves are provided at the tops of the opposite sides of the two groups of supporting and fixing rods, and the two ends of the unwinding shaft are rotatably arranged in the grooves.

[0012] Preferably, the roller mechanism comprises support frames and transition rollers, two groups of support frames are vertically arranged on the base, and a rotatable transition roller is arranged between the support frames.

[0013] Preferably, the transition roller is vertically movable and arranged between the support frames.

[0014] Preferably, a slide rail is provided on the base, and a slider cooperating with the slide rail is provided on the film encapsulation seat, so that the film encapsulation seat can be movably arranged on the base.

[0015] By replacing the coating film of corresponding size and adjusting the distance between the two sets of coating seats on the base, it can be suitable for coating of lithium batteries of different sizes.

[0016] Preferably, the distance between the two groups of membrane seats is the same as the thickness of the lithium battery.

[0017] Preferably, a scale is also provided on the base.

[0018] Preferably, the base is further provided with a through hole, and a material receiving box is arranged at the position of the through hole.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The lithium battery coating device is not only simple in structure and easy to operate, but also only needs to cut the coating film of corresponding length on the coating mechanism, and place the lithium battery vertically between the coating seats. The coating can be completed by the gravity of the lithium battery itself, while avoiding the problems of bubbles and wrinkles generated in the manual coating process; this coating method greatly saves manpower and significantly improves the efficiency and quality of lithium battery coating.

[0021] 2. By replacing the coating film of corresponding size and adjusting the distance between the two sets of coating seats on the base, it can be applied to the coating of lithium batteries of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further explained in conjunction with the drawings in the specification.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically limited.

[0026] See also Figure 1 The present embodiment discloses a lithium battery coating device, including a base 1, a slide rail 2, a reeling mechanism 3, a roller mechanism 4, a coating mechanism 5, a material receiving box 6, and a scale (not shown in the figure). The base 1 is provided with the reeling mechanism 3, the roller mechanism 4, and the coating mechanism 5 in sequence along its length direction. Specifically, the base 1 is also provided with a slide rail 2, and the coating mechanism 5 can be slidably arranged on the slide rail 2, and the slide rail 2 is provided with a scale along its length direction.

[0027] The unwinding mechanism 3 is used for unwinding the coating film 7; specifically, the unwinding mechanism 3 includes a supporting fixed rod 31, an unwinding shaft 32, a swing arm 33, a swing arm roller 34 and an unwinding limit block 35, two groups of supporting fixed rods 31 are vertically fixed on the base 1, and grooves (not marked in the figure) are provided on the top of the opposite sides of the two groups of supporting fixed rods 31, and the two ends of the unwinding shaft 32 are rotatably arranged in the grooves, and the unwinding shaft 32 is wrapped with the coating film 7, and the two groups of supporting fixed rods 31 are respectively provided with rotatable swing arms 33, and a swing arm roller 34 is arranged between the two groups of swing arms, and the swing arm roller 34 is also provided with two groups of slidable unwinding limit blocks 35, and the spacing between the two groups of unwinding limit blocks 35 is slightly larger than the width of the coating film 7, which is used to limit the coating film 7.

[0028] The roller mechanism 4 includes a support frame 41 and a transition roller 42. Two sets of support frames 41 are vertically arranged on the base 1, and a rotatable transition roller 42 is arranged between the support frames 41. Further, the support frames 41 are provided with lifting control bolts that cooperate with the transition roller 42. The lifting control bolts are rotated to drive the transition roller 42 to move vertically on the support frame 41, so that the height of the transition roller 42 is adjusted by the lifting control bolts to be substantially flush with the top height of the coating mechanism 5.

[0029] The coating film 7 on the unwinding shaft 32 is led out, passes through the lower end of the swing arm roller 34 , and then passes through the upper end of the transition roller 42 , and is finally pulled onto the coating mechanism 5 .

[0030] The film coating mechanism 5 includes a film coating seat 51, a slider 52, and a smoothing roller 53. The two groups of film coating seats 51 are slidably arranged on the slide rail 2 through the slider 52. There is a gap between the two groups of film coating seats 51, and the gap is the same as the thickness of the lithium battery 8. The two groups of film coating seats 51 are provided with a rotatable smoothing roller 53 on the opposite side. Specifically, the film coating seat 51 is moved to a position on the slide rail 2. When the scale measures that the gap between the two groups of film coating seats 51 is the same as the thickness of the lithium battery 8, the movement of the film coating seat 51 is stopped.

[0031] Furthermore, the film encapsulation seat 51 is also provided with fixing bolts 9 , and the film encapsulation seat 51 is fixed to the base 1 by the fixing bolts 9 .

[0032] Furthermore, the upper surface of the film coating seat 51 is also provided with array-distributed cutting grooves 511 , and the material of the smoothing roller 53 is rubber.

[0033] A through hole is also provided on the base 1 at the coating mechanism 5 , and a receiving box 6 for receiving lithium batteries 8 is arranged at the position of the through hole.

[0034] The working principle of this embodiment:

[0035] First, the film coating seat 51 is moved on the slide rail 2. When the distance between the two groups of film coating seats 51 is measured by the scale and is the same as the thickness of the lithium battery 8 to be coated, the film coating seat 51 is stopped from moving, and the film coating seat 51 is fixed on the base 1 by the fixing bolt 9. Then, the transition roller 42 is driven to move vertically on the support frame 41 by rotating the lifting control bolt, so that the height of the transition roller 42 is adjusted to be substantially flush with the top height of the film coating seat 51, and then the coating film 7 on the unwinding shaft 32 is led out, passes through the lower end of the swing arm roller 34, and then passes through the upper end of the transition roller 42, and finally is pulled onto the film coating seat 51.

[0036] The coating film 7 is then positioned and cut to a fixed length along the cutting groove 511 on the coating seat 51, and the lithium battery 8 is placed vertically and centered between the two smoothing rollers 53, that is, between the two groups of coating seats 51. The lithium battery 8 falls freely to the receiving box 6 due to its own gravity, and then the lithium battery 8 with the large coating on both sides in the receiving box 6 is taken out, and the excess coating film 7 at both ends is smoothed and attached to the narrow surface of the lithium battery 8 to complete the overall coating of the lithium battery 8.

[0037] The lithium battery coating device in this embodiment is not only simple in structure and easy to operate, but also only needs to cut the coating film 7 of corresponding length on the coating mechanism 5, and place the lithium battery 8 vertically between the coating seats 51, and use the gravity of the lithium battery 8 to complete the coating, while avoiding the problems of bubbles and wrinkles generated during the manual coating process; this coating method greatly saves manpower and significantly improves the efficiency and quality of the coating of the lithium battery 8; in addition, by replacing the coating film 7 of corresponding size and adjusting the distance between the two groups of coating seats 51 on the base 1, it can be suitable for the coating of lithium batteries 8 of different sizes.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0039] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.

Claims

1. A lithium battery coating device, characterized in that: It includes a base, an unwinding mechanism, a roller mechanism, and a film wrapping mechanism, wherein the unwinding mechanism, the roller mechanism, and the film wrapping mechanism are sequentially arranged on the base; The unwinding mechanism is used for unwinding the coating film; the roller mechanism is used for guiding the coating film onto the coating mechanism; The film coating mechanism comprises a film coating seat and a smoothing roller. Two groups of film coating seats are arranged on the base, there is a distance between the two groups of film coating seats, and rotatable smoothing rollers are arranged on opposite sides of the two groups of film coating seats.

2. A lithium battery coating device according to claim 1, characterized in that: The unwinding mechanism comprises supporting and fixing rods and an unwinding shaft. Two groups of supporting and fixing rods are vertically arranged on the base, and a rotatable unwinding shaft is arranged between the supporting and fixing rods.

3. A lithium battery coating device according to claim 2, characterized in that: The unwinding mechanism also includes a swing arm, a swing arm roller and an unwinding limit block. The two groups of supporting fixed rods are respectively provided with rotatable swing arms, a swing arm roller is provided between the two groups of swing arms, and two groups of slidable unwinding limit blocks are also sleeved on the swing arm roller.

4. A lithium battery coating device according to claim 2, characterized in that: A groove is arranged at the top of one side opposite to the two groups of supporting and fixing rods, and the two ends of the unwinding shaft are rotatably arranged in the groove.

5. A lithium battery coating device according to claim 1, characterized in that: The roller mechanism comprises a support frame and a transition roller. Two groups of support frames are vertically arranged on a base, and a rotatable transition roller is arranged between the support frames.

6. A lithium battery coating device according to claim 5, characterized in that: The transition roller is vertically movable and arranged between the support frames.

7. A lithium battery coating device according to claim 1, characterized in that: The base is provided with a slide rail, and the film-coating seat is provided with a slider matched with the slide rail, so that the film-coating seat can be movably arranged on the base.

8. A lithium battery coating device according to claim 1, characterized in that: The distance between the two sets of membrane seats is the same as the thickness of the lithium battery.

9. A lithium battery coating device according to claim 1, characterized in that: A scale is also provided on the base.

10. A lithium battery coating device according to claim 1, characterized in that: The base is also provided with a through hole, and a material receiving box is arranged at the position of the through hole.

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