CN211265609U - A kind of liquid injection equipment for electric core - Google Patents

Abstract

The utility model discloses a liquid injection device for an electric core, which comprises a frame. The frame is provided with a feeding belt for feeding the electric core, a weighing mechanism 1 for weighing the electric core, and a liquid injection vacuuming mechanism , the weighing mechanism is set between the feeding belt and the liquid injection and vacuuming mechanism, and a transport module is arranged on one side of the weighing mechanism, and the transport module transports the battery cells from the feeding belt to the scale The first weighing mechanism, the transport module can also transport the cells on the first weighing mechanism to the liquid injection and vacuum mechanism; the side of the liquid injection and vacuum mechanism is provided with the second weighing mechanism, and the second side of the weighing mechanism It is provided with a blanking mechanism for blanking the battery cells, and a transfer assembly for moving the battery cells from the second weighing mechanism to the blanking mechanism. The equipment of the utility model is fully automatic operation, which improves the production efficiency. The weighing is performed before the battery cell is injected, and the battery is weighed again after the battery is injected, so as to ensure that the amount of electrolyte injected into the battery meets the preset range value, and avoid the battery core. The quality is uneven, to ensure the quality of the battery.

Description

A kind of liquid injection equipment for electric core

technical field

The utility model relates to the field of electric core processing, in particular to a liquid injection device for electric cores.

Background technique

With the rapid development of technology and economy, the functions of electronic products on the market are becoming more and more powerful, and the requirements for the size of the cells are getting smaller and smaller, but the requirements for the energy density of the cells are getting higher and higher. As shown in FIG. 2 , the battery cell 2 includes a housing 21 , a tab 22 accommodated in the housing, a cap 23 welded to the tab, and the cap is closed on the housing. Currently, the cell needs to be manually processed during the processing. , the production efficiency is low.

Electrolyte is one of the important materials for the composition of the battery. The amount of electrolyte absorbed is related to the capacity and cycle life of the battery. Insufficient absorption of the electrolyte will cause a decrease in the battery capacity, an increase in the internal resistance of the battery and a rapid cycle life. attenuation. The space for accommodating the electrolyte in the battery is very limited, so it is necessary to absorb the electrolyte as much as possible in the limited space. Conventionally, power-on detection is required to ensure that the battery cell can work normally, but the normal power-on use does not mean the quality of the battery cell High, the amount of air in the injected electrolyte will affect the quality of the battery cell. The prior art has low requirements for the quality of the battery core, and cannot effectively distinguish the problem of different quality battery cells caused by different electrolyte injection amounts.

Utility model content

In order to solve the problems of low degree of automation, low production efficiency and unguaranteed product quality of the existing battery core processing, the utility model provides a liquid injection device for the battery core.

A liquid injection device for a battery cell, comprising a frame, on which is provided a feeding belt for feeding the battery cell, a weighing mechanism 1 for weighing the battery cell, and a liquid injection vacuuming mechanism, the weighing The first mechanism is arranged between the feeding belt and the liquid injection and vacuuming mechanism. A transport module is arranged on one side of the weighing mechanism, and the transport module transports the battery cells from the feeding belt to the weighing mechanism one. The module can also transport the cells on the weighing mechanism 1 to the liquid injection and vacuuming mechanism; the side of the liquid injection and vacuuming mechanism is provided with a weighing mechanism 2, and the second side of the weighing mechanism is provided with a battery cell A blanking mechanism for blanking, and a transfer assembly for moving the battery cells from the second weighing mechanism to the blanking mechanism.

Preferably, the weighing mechanism 1 includes a weighing frame and a weighing platform arranged above the weighing frame, and the weighing platform is provided with a weighing machine and a sensor for sensing whether the cell leaves the weighing machine. A sensor, an adjusting screw for adjusting the height of the weighing platform is arranged between the weighing frame and the weighing platform.

Preferably, the liquid injection vacuuming mechanism includes a first liquid injection device, a first vacuum pumping device, a second liquid injection device, a second vacuum pumping device, and a third injection device, which are sequentially arranged on the rack. liquid device, the third vacuum device, the fourth injection device and the fourth vacuum device.

Preferably, the first liquid injection device includes a liquid injection pump, a liquid injection head connected to the liquid injection pump, and a liquid injection module that drives the liquid injection head to move; the first vacuum pumping device includes a vacuum chamber, Pressure gauge connected to vacuum chamber.

Preferably, the blanking mechanism includes a blanking frame, and the blanking frame is provided with a folding pole lug assembly, a capping cap assembly and a blanking assembly, and the pressing cap assembly is arranged on the folding pole lug assembly and the blanking member. Between components, the capping cap assembly is used to encapsulate the cap of the cell and the shell of the cell, the folding tab assembly folds the tab of the cell, and the blanking assembly places the cell On the qualified product track or the unqualified product track set on the unloading rack.

Preferably, the blanking assembly includes a blanking base disposed on the blanking frame, a double-stroke cylinder is arranged on the blanking base, a moving plate is connected to the double-stroke cylinder for transmission, and the moving plate is connected to drive the cylinder. Vertically moving downward pressure cylinder with pneumatic fingers installed on the moving plate.

Preferably, the side of the liquid injection and vacuum pumping mechanism is provided with a cap removing mechanism for removing the cap of the battery cell.

Preferably, the cap-removing mechanism includes a cap-removing base and a lever provided on the cap-removing base, and the cap-removing cylinder is driven and connected to the lever.

The utility model provides a liquid injection equipment for electric cores. The equipment is fully automated and the production efficiency is improved. The electric core is weighed before the electric core is injected, and the electric core is weighed again after the electric core is injected, so as to ensure the amount of electrolyte injected into the electric core. Comply with the preset range value to avoid uneven quality of cells; vacuuming improves the permeability of electrolyte, thereby improving the quality of cells; the blanking mechanism separates qualified and unqualified cells to ensure that Cell quality.

Description of drawings

Fig. 1 is the overall structure schematic diagram that the utility model embodiment provides;

2 is a schematic structural diagram of a battery cell provided by an embodiment of the present invention;

3 is a schematic structural diagram of a weighing mechanism 1 provided by an embodiment of the present invention;

4 is a schematic structural diagram of a liquid injection vacuuming mechanism provided by an embodiment of the present utility model;

5 is a schematic structural diagram of a feeding mechanism provided by an embodiment of the present utility model;

6 is a schematic structural diagram of a blanking assembly provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a cap removing mechanism provided by an embodiment of the present invention.

Detailed ways

The content of the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Figures 1 to 7, a liquid injection equipment for battery cells includes a frame 1, and the frame 1 is provided with a feeding belt 3 for feeding the battery cells 2 and a weighing mechanism for weighing the battery cells 2. One 4 and the liquid injection vacuuming mechanism 5, the weighing mechanism one 4 is arranged between the feeding belt 3 and the liquid injection vacuuming mechanism 5, the weighing mechanism one 4 is provided with a transport module 6 on the side, and the transport module 6 will The battery cells are transported from the feeding belt 3 to the weighing mechanism 1 4, and the transport module 6 also transports the battery cells on the weighing mechanism 1 4 to the liquid injection vacuum mechanism 5; Weighing mechanism 27, the side of weighing mechanism 27 is provided with a blanking mechanism 8 for blanking the battery cell 2, and a transfer assembly 9 for moving the battery cell 2 from the weighing mechanism 27 to the blanking mechanism 8 . The transport die 6 includes two gripping jaws, each gripping jaw can grip a plurality of battery cells at the same time, and in this embodiment, the gripping jaws can grip five battery cells simultaneously. After the battery cells are fed through the feeding belt 3, the battery cells 2 before liquid injection are first weighed. After weighing, the battery cells 2 are injected with liquid and vacuumed, and then the cells are weighed twice. Heavy comparison can determine the amount of electrolyte injected into the cell, ensure that the weight of the cell meets the preset requirements, and automatically cut through the blanking mechanism 8. The entire equipment adopts automatic operation to improve the efficiency of cell processing and ensure that the cell is quality.

The weighing mechanism 1 4 includes a weighing frame 41 and a weighing table 42 arranged above the weighing frame 41 . The sensor 44, the adjusting screw 45 for adjusting the height of the weighing table 42 is arranged between the weighing frame 41 and the weighing table 42; the structure of the weighing mechanism 2 7 is basically the same as that of the weighing mechanism 1 4. The mechanism one 4 and the weighing mechanism two 7 can realize the simultaneous weighing of multiple cells.

The liquid injection vacuuming mechanism 5 includes a first liquid injection device 51 , a first vacuum pumping device 52 , a second liquid injection device 53 , a second vacuum pumping device 54 , a third The liquid injection device 55 , the third vacuum pumping device 56 , the fourth liquid injection device 57 and the fourth vacuum pumping device 58 ; the first liquid injection device 51 includes a liquid injection pump 511 , a liquid injection device connected to the liquid injection pump The head 512, the liquid injection module 513 that drives the liquid injection head to move, and the liquid injection module 513 drives the liquid injection head 512 to inject liquid to the cells on the fixture; the first vacuum pumping device 52 includes a vacuum chamber 521, and The pressure gauge 522 connected to the vacuum chamber 521 is evacuated after each injection, which can reduce the gap in the electrolyte and increase the amount of electrolyte injected.

The blanking mechanism 8 includes a blanking frame 81, and the blanking frame 81 is provided with a folding pole lug assembly 82, a gland cap assembly 83 and a blanking assembly 84, and the gland cap assembly 83 is arranged on the folding pole lug assembly 82 and the blanking assembly. Between 84 and 84, the capping cap assembly 83 is used to encapsulate the cap 23 of the cell and the shell 21 of the cell, the folding tab assembly 82 bends the tab 22 of the cell, and the blanking assembly 84 places the cell On the qualified product track 85 or the unqualified product track 86 provided on the unloading rack. The blanking assembly 84 includes a blanking base 841 arranged on the blanking frame 81, the blanking base 841 is provided with a double-stroke cylinder 842, the double-stroke cylinder 842 is connected with a moving plate 843, and the moving plate 843 is connected to drive its vertical The moving downward pressure cylinder 844, a pneumatic finger 845 is installed on the moving plate 843, the double-stroke cylinder 842 drives the horizontal movement of the moving plate 843, and the downward pressure cylinder 844 drives the moving plate 843 to move vertically, thereby driving the pneumatic finger 845 on the moving plate Clamp the cell.

The side of the liquid injection and vacuuming mechanism 5 is provided with a cap removal mechanism 10 for removing the cap 23 of the battery cell. The cap removal mechanism 10 includes a cap removal base 101 and a lever 102 arranged on the cap removal base 101. The lever 102 drives the The cap removing cylinder 103 is connected, and the cap removing cylinder 103 drives the lever 102 to move, and the lever 102 moves the cap 23 of the battery cell to one side, which is convenient for subsequent liquid injection and prevents the electrolyte from falling on the cap 23 .

The utility model provides a liquid injection equipment for electric cores. The equipment is fully automated and the production efficiency is improved. The electric core is weighed before the electric core is injected, and the electric core is weighed again after the electric core is injected, so as to ensure the amount of electrolyte injected into the electric core. Comply with the preset range value to avoid uneven quality of cells; vacuuming improves the permeability of electrolyte, thereby improving the quality of cells; the blanking mechanism separates qualified and unqualified cells to ensure that Cell quality.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this implementation are included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a notes liquid equipment of electric core, includes frame (1), its characterized in that: the battery cell weighing and vacuumizing device is characterized in that a feeding belt (3) used for feeding a battery cell (2), a weighing mechanism I (4) used for weighing the battery cell (2) and a liquid injection vacuumizing mechanism (5) are arranged on a rack (1), the weighing mechanism I (4) is arranged between the feeding belt (3) and the liquid injection vacuumizing mechanism (5), a transportation module (6) is arranged on the side edge of the weighing mechanism I (4), the transportation module (6) transports the battery cell from the feeding belt (3) to the weighing mechanism I (4), and the transportation module (6) can also transport the battery cell on the weighing mechanism I (4) to the liquid injection vacuumizing mechanism (5); annotate liquid evacuation mechanism (5) side and be equipped with weighing machine structure two (7), weighing machine structure two (7) side is equipped with unloading mechanism (8) that are used for electric core (2) unloading to and be used for moving transfer subassembly (9) of unloading mechanism (8) with electric core (2) from weighing machine structure two (7).

2. The liquid injection device for the battery cell of claim 1, wherein: the weighing mechanism I (4) comprises a weighing rack (41) and a weighing platform (42) arranged above the weighing rack (41), wherein a weighing machine (43) and an inductor (44) for inducing whether the battery cell leaves the weighing machine (43) are arranged on the weighing platform (42), and an adjusting screw rod (45) for adjusting the height of the weighing platform (42) is arranged between the weighing rack (41) and the weighing platform (42).

3. The liquid injection device for the battery cell of claim 1, wherein: the liquid injection and vacuum pumping mechanism (5) comprises a first liquid injection device (51), a first vacuum pumping device (52), a second liquid injection device (53), a second vacuum pumping device (54), a third liquid injection device (55), a third vacuum pumping device (56), a fourth liquid injection device (57) and a fourth vacuum pumping device (58) which are sequentially arranged on the rack (1).

4. The liquid injection device for the battery cell of claim 3, wherein: the first-time liquid injection device (51) comprises a liquid injection pump (511), a liquid injection head (512) connected with the liquid injection pump (511), and a liquid injection module (513) for driving the liquid injection head (512) to move; the first-time vacuum pumping device (52) comprises a vacuum chamber (521) and a pressure gauge (522) connected with the vacuum chamber (521).

5. The liquid injection device for the battery cell of claim 1, wherein: unloading mechanism includes unloading frame (81), be equipped with on unloading frame (81) and roll over utmost point ear subassembly (82), gland cap subassembly (83) and unloading subassembly (84), gland cap subassembly (83) set up between roll over utmost point ear subassembly (82) and unloading subassembly (84), gland cap subassembly (83) are used for realizing the encapsulation with the lid cap (23) of electric core and casing (21) of electric core, roll over utmost point ear subassembly (82) and buckle to the utmost point ear of electric core, unloading subassembly (84) are placed qualified products track (85) or unqualified products track (86) that are equipped with on unloading frame (81) with electric core.

6. The liquid injection device for the battery cell of claim 5, wherein: unloading subassembly (84) are equipped with double-stroke cylinder (842) including setting up unloading base (841) on unloading frame (81) on unloading base (841), double-stroke cylinder (842) transmission is connected with movable plate (843), be connected with its vertical movement's of drive push down cylinder (844) on movable plate (843), install pneumatic finger (845) on movable plate (843).

7. The liquid injection device for the battery cell of claim 1, wherein: and a cap-pulling mechanism (10) for pulling the cap (23) of the battery cell is arranged on the side edge of the liquid-injecting vacuumizing mechanism (5).

8. The liquid injection device for the battery cell of claim 7, wherein: the cap poking mechanism (10) comprises a cap poking base (101) and a poking rod (102) arranged on the cap poking base (101), and the poking rod (102) is connected with a cap poking cylinder (103) in a transmission mode.

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