A soft package lithium battery packaging production equipment

Abstract

The invention discloses a soft package lithium battery packaging production equipment. In the invention, several sets of vacuum suction devices and clamping devices are arranged on the annular moving device, and a shaping and maintaining device, a heat sealing device, and a cutting device are sequentially arranged under the annular moving device. And the empty bag take-out device realizes the multi-station continuous operation while realizing the functions of automatic vacuuming, automatic sealing, cutting and empty bag collection of the lithium battery air bag; the invention uses a cylindrical thin tube to insert the lithium battery air bag from the side Absorb the electrolyte and vacuumize, and use the jaws to clamp the lithium battery air bag to help maintain the vacuum while transferring the lithium battery air bag to avoid air leakage, so as to ensure that the electrolyte will not volatilize and avoid piercing the lithium battery air bag The present invention is equipped with an empty bag take-out device to remove the remaining empty bags on the vacuum suction device and put them into the collection box to realize the automatic recovery of the remaining materials.

Description

technical field [0001] The invention relates to the technical field of lithium battery equipment, in particular to a soft package lithium battery packaging production equipment. Background technique [0002] Lithium-ion cells need to be left still and packaged after liquid injection. The standing treatment is used to allow the electrolyte to penetrate into the inside of the battery evenly, then pump the excess electrolyte out of the battery, and then re-vacuumize the inside of the battery. Only in this way can it be packaged, so as to ensure the performance of the battery cell. [0003] At present, the vacuum packaging of the battery cell is to vacuumize the battery in a sealed cavity formed by the movement of the upper cavity and the lower cavity, and then package it; If it takes a long time, the extracted air will contain volatile gas from the electrolyte, which will pollute the environment and waste resources; secondly, it is not easy to find problems during the vacuum p...

AI Technical Summary

Problems solved by technology

[0003] At present, the vacuum packaging of the battery cell is to vacuumize the battery in a sealed cavity formed by the movement of the upper cavity and the lower cavity, and then package it; If the time is long, the extracted air will contain volatile gas from the electrolyte, which will pollute the environment and waste resources; secondly, it is not easy to find problems during the vacuum packaging process; in addition, the movement of the upper and lower chambers has the risk of crushing and crushing

[0004] The patent with application number CN201810678658.6 proposes a vacuum sealing mechanism, which includes a movable chamber, a fixed front chamber hinged to the movable chamber and locked with the movable chamber by a locking device, and a fixed front chamber connected to the fixed front chamber. The rear cavity and the cell delivery mechanism connected to the fixed rear cavity; the movable cavity includes a first fixed seat, a first guide rod, a second fixed seat, a compression spring, an air bag pressure plate, a bayonet and a liquid contact Box; the first fixed seat, the first guide rod, the second fixed seat, the compression spring and the air bag pressure plate are connected sequentially from top to bottom, the bayonet is arranged under the second fixed seat, and the liquid receiving box is arranged under the air bag pressure plate; The movable chamber also includes a first cylinder arranged above the movable chamber and drivenly connected with the second fixed seat, and a second cylinder arranged below the movable chamber and connected with the liquid contact box; this technology abandons the traditional upper The movement of the cavity and the lower cavity eliminates the risk of crushing and crushing in the traditional cavity. However, the vacuumed cavity is still large, and it takes a long time to vacuumize, and the evacuated air contains electrolyte volatilization. gas, pollute the environment, and waste resources; in addition, only one lithium battery bag can be processed at a time, and the production efficiency is low

[0005] A vacuum packaging device proposed by a patent with the application number CN201610914294.8, which includes a packaging top plate, a mounting block, a battery pressing mechanism, an upper sealing mechanism, a lower sealing mechanism and a liquid suction mechanism, and the gap between the sealing top plate and the mounting plate There are columns supporting the top plate of the package, and there are installation holes pierced through the top plate of the package. The battery pressing mechanism includes a battery press cylinder and a battery press plate. There are two battery press cylinders, which are located on the package top plate. Two battery press cylinders The output of the battery is respectively connected with the pressure battery ejector rod, which is connected and fixed with the battery pressure plate. At the same time, there are several moving guide rods on the battery pressure plate. The upper head mechanism includes the cylinder mounting seat, the upper head lifting cylinder and the upper bearing. The seat pair, the upper head lifting cylinder and the upper bearing seat pair are arranged on the cylinder mounting seat, the output connecting rod and the upper bearing seat pair of the upper head lifting cylinder respectively pass through the package top plate to connect with the upper head assembly, and the upper head lifts The action of the cylinder makes the upper head assembly move up and down. The lower head mechanism includes the cylinder mounting plate, the lower head lifting cylinder and the lower bearing seat pair. The lower head lifting cylinder is set on the bottom surface of the cylinder mounting plate; Absorb the electrolyte, the surface of the soft bag battery is uneven, the suction cup is easy to leak air, so that the suction of the electrolyte and the vacuum fail; in addition, the suction cup is equipped with a bayonet to puncture the air bag of the lithium battery. When the vacuum becomes higher, the battery becomes flat. At this time, the bayonet is easy to pierce the bottom of the air bag. At this time, the suction cup no longer sucks the gas and liquid inside the battery, but the air under the battery, resulting in vacuum failure. ; In addition, only one lithium battery bag can be processed at a time, and the production efficiency is low

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