CN202721216U - A lithium battery automatic coating machine - Google Patents

Abstract

The utility model discloses an automatic coating machine of lithium cell, including loading attachment, grabbing device, pad pasting device and unloader. According to the utility model discloses an automatic coating machine of lithium cell can be automatic in succession carry out the diolame to electric core positive and negative, because automatic coating machine of lithium cell eliminated the influence of human factor, so not only can practice thrift raw and other materials, very big improvement the diolame quality moreover, greatly alleviateed operating personnel's intensity of labour simultaneously.

Description

A lithium battery automatic coating machine

technical field

The utility model relates to the field of lithium battery manufacturing, in particular to an automatic coating machine for lithium batteries.

Background technique

Most of the lithium batteries commonly used now are composed of a casing and a plurality of positive pole pieces, separators, negative pole pieces, and electrolyte contained in the casing. The separator is usually a strip-shaped film. Cut slightly longer than the two sides of the positive pole piece, and wrap it on both sides of the positive pole piece by folding, so that the negative pole piece is located between the diaphragms on the outside of the two adjacent positive pole pieces, thus forming the positive pole piece-diaphragm-negative pole The sheet combination is wrapped and placed in the casing, so that the diaphragm plays the role of isolating the positive and negative electrodes. In order to avoid the displacement of the diaphragm caused by vibration during transportation and use, which will cause the performance of the battery to decline or even be scrapped, there is a structure that wraps the positive electrode piece in the separator by heat sealing. Since the upper end of the positive electrode piece has tabs, The lower end is the folded edge of the diaphragm, and the left and right sides and the part outside the upper ear need to be heat-sealed and bonded to form a bag-like structure.

In the battery production process, after the top and side sealing process is completed and before liquid injection, the protective film on the front and back of the battery can protect the battery and reduce surface pollution and scratches in the subsequent production process. The existing process is done manually. The consistency and stability of the glue is not good.

Utility model content

The purpose of the utility model is to provide a coating machine that automatically coats the front and back of the lithium battery at the same time in order to overcome the poor consistency and stability of the glue caused by manual glue application in the prior art.

In order to achieve the above object, the technical scheme adopted in the utility model is as follows:

An automatic lithium battery coating machine, mainly including a feeding device for transporting battery cells through a conveyor belt, a grabbing device for grabbing the battery cells from the feeding device, a film sticking device for sticking a film on the battery cells, The unloading device after the film sticking is completed, the film sticking device is divided into an upper film sticking mechanism and a lower film sticking mechanism, and the upper film sticking mechanism and the lower film sticking mechanism simultaneously carry out film sticking on the front and back of the battery cell.

The above-mentioned feeding device includes a first conveyor belt, a positioning fixture for clamping the electric core, a synchronous wheel for driving the electric core to move, and a first motor for driving the synchronous wheel to move.

The above-mentioned grabbing device includes a mechanical gripper installed on the mobile platform, the mobile platform is driven by the second motor to make the screw move back and forth on the guide rail, and the mechanical gripper grabs the battery cells and sends them to the Filming device.

The upper film sticking mechanism and the lower film sticking mechanism above include an unwinding device for releasing the protective film, a tension control device for controlling the tension of the protective film, a pressing device for pressing the protective film, a vacuum adsorption roller device for feeding through rotation, and a cutting protection device. The film cutting device and two sets of rolling devices press the protective film to attach it to the vacuum roller and are controlled by eight sets of vacuum one-way valves.

The above-mentioned unloading device includes a second conveyor belt. The two sides of the moving direction of the conveyor belt are respectively equipped with transition ramps to facilitate battery unloading and bars to prevent batteries from falling from the conveyor belt. The conveyor belt is driven by a third motor.

Beneficial effects of the utility model: Since the lithium battery automatic coating machine of the utility model can continuously and fully automatically coat the front and back of the lithium battery at the same time, thereby eliminating the influence of human factors, it not only saves raw materials, but also greatly The quality of the battery coating is improved, and the labor intensity of the operator is greatly reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model lithium battery automatic coating machine.

Fig. 2 is a structural schematic diagram of the feeding device of the lithium battery automatic coating machine of the present invention.

Fig. 3 is a structural schematic diagram of the grasping device of the lithium battery automatic coating machine of the present invention.

Fig. 4 is a structural schematic diagram of the upper film-sticking mechanism of the lithium battery automatic film-coating machine of the present invention.

Fig. 5 is a structural schematic diagram of the lower film sticking mechanism of the lithium battery automatic film coating machine of the present invention.

Fig. 6 is a structural schematic diagram of the unloading device of the lithium battery automatic coating machine of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The lithium battery automatic coating machine shown in Figure 1 to Figure 6 mainly includes a feeding device 1 that transports the battery cell through a conveyor belt, a grabbing device 2 that grabs the battery cell from the feeding device, and applies a film to the battery cell The film sticking device 3, and the unloading device 4 after the film sticking of the battery cell is completed. The film sticking device 3 is divided into an upper film sticking mechanism 30 and a lower film sticking mechanism 40, and the upper film sticking mechanism 30 and the lower film sticking mechanism 40 carry out film sticking on the front and back of the cell simultaneously.

The above-mentioned feeding device 1 includes a first conveyor belt 12 , a positioning jig 11 for clamping the battery cell, a synchronous wheel 13 for driving the battery cell to move, and a first motor 14 for driving the synchronous wheel to move.

The above-mentioned grasping device 2 includes a mechanical gripper 21 installed on the mobile platform 22, the mobile platform 22 is driven by the second motor 25 to move the screw mandrel 23 back and forth on the guide rail 24, and the mechanical gripper 21 moves with the movement of the mobile platform 22. The mobile grabs the cell and sends it to the film sticking device 3.

The above-mentioned upper film sticking mechanism 30 includes an unwinding device 31 that releases the protective film, a tension control device 32 that controls the tension of the protective film, a pressing device 33 that compresses the protective film, and a vacuum adsorption roller device 36 that feeds through rotation, and then passes through the cutting process. The protective film cutting device 35 and two sets of rolling devices 34 press the protective film to be attached to the vacuum roller 36 and are controlled by eight sets of vacuum one-way valves 37 .

The above-mentioned lower film sticking mechanism 40 includes an unwinding device 41 that releases the protective film, a tension control device 42 that controls the tension of the protective film, a pressing device 43 that compresses the protective film, and a vacuum adsorption roller device 46 that feeds through rotation, and then passes through the cutting device. The protective film cutting device 45 and two sets of rolling devices 44 press the protective film so that it is attached to the vacuum roller 46 and are controlled by eight sets of vacuum one-way valves 47 .

The above-mentioned unloading device 4 includes a second conveyor belt 51, the two sides of the moving direction of the conveyor belt are respectively provided with a transition ramp 52 to facilitate battery unloading and a bar 53 to prevent the battery from falling from the conveyor belt, and the conveyor belt 51 passes through the second conveyor belt. Three motors 54 drive.

Describe the working process of the present utility model in detail below:

Place the electric core to be coated on the feeding end of the feeding device 1, turn on the first motor 14, and under the drive of the first motor 14, the synchronous wheel 13 drives the first conveyor belt 12 to move; when the conveyor belt 12 drives the motor When the core reaches the other end of the feeding device 1, under the drive of the second motor 25, the mechanical gripper 21 grabs the battery cell, and the mobile table 22 moves on the guide rail 24 to the film sticking device 3; Rolling device 31, tension control device 32, pressing device 33, rolling device 34 compress the protective film and attach it to the vacuum roller 36, then wrap the protective film on one side of the cell, after wrapping the film, the cutting device 35 cuts off Protective film, wherein the vacuum roller 36 is controlled by 8 sets of vacuum one-way valves 37; at the same time, the protective film in the lower film sticking mechanism 40 passes through the unwinding device 41, the tension control device 42, the pressing device 43, and the rolling device 44 in sequence. The protective film is attached to the vacuum roller 46, and then the protective film is wrapped on the other side of the cell. After wrapping the film, the cutting device 45 cuts off the protective film, wherein the vacuum roller 46 is controlled by 8 sets of vacuum check valves 47; After the upper film sticking mechanism 30 and the lower film sticking mechanism 40 of the film sticking device 3 stick the film on the front and back of the battery cell, the battery cell is sent to the unloading device 4, driven by the third motor, the second conveyor belt 51 transports the battery cell to the The other end of the unloading device 4, wherein the effect of the inclined plate 52 is to facilitate the unloading of the electric core, and the rail is to prevent the electric core from falling from the second conveyor belt 51.

The above is only a preferred embodiment of the present utility model. It is worth noting that, for those of ordinary skill in the art, on the premise of not departing from the principle of the utility model, some deformations or improvements can also be made to the utility model, so all the structures described in the patent application scope of the utility model Equivalent changes or modifications made in , features and principles, these features all belong to the protection scope of the utility model patent application.

Claims (5)

1. lithium battery automatic film coating, mainly comprise by conveyer belt transport the feeding device of battery core, with battery core from the grabbing device of feeding device crawl, battery core is carried out the film sticking apparatus of pad pasting, blanking device after battery core being carried out pad pasting finishes, it is characterized in that: described film sticking apparatus is divided into film pasting mechanism and lower film pasting mechanism, and upper film pasting mechanism and lower film pasting mechanism carry out pad pasting simultaneously to the battery core positive and negative.

2. a kind of lithium battery automatic film coating according to claim 1 is characterized in that: described feeding device comprise the first conveyer belt, clamping battery core positioning fixture, drive the synchronizing wheel of battery core motion and the first motor that drives the synchronizing wheel motion.

3. a kind of lithium battery automatic film coating according to claim 1, it is characterized in that: described grabbing device comprises the mechanical gripper that is installed on the travelling carriage, travelling carriage makes screw mandrel move around at guide rail by the driving of the second motor, and mechanical gripper is along with film sticking apparatus is grasped and delivered to the movement of travelling carriage with battery core.

4. a kind of lithium battery automatic film coating according to claim 1 is characterized in that: described upper film pasting mechanism and lower film pasting mechanism comprise the unwinding device of emitting diaphragm, control diaphragm tension force tenslator, compress the hold down gag of diaphragm, again by the vacuum suction drum apparatus of swivel feeding, compress diaphragms through the shearing device of tripping protection film, two groups of rolling devices again and it be attached on the vacuum drum and by eight groups of vacuum check valves control.

5. a kind of lithium battery automatic film coating according to claim 1, it is characterized in that: described blanking device comprises that the direction of motion both sides of the second conveyer belt, conveyer belt are respectively equipped with the transition swash plate of being convenient to battery blanking and prevent the shelves bar that battery drops from conveyer belt, and conveyer belt drives by the 3rd motor.

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