Liquid injection device
A technology of a liquid injection device and a liquid injection cup, which is applied in the field of liquid injection machines, and can solve problems such as increased maintenance costs, downtime maintenance, and sticking of the rod in the cup, and achieves the effect of simple structure
Active Publication Date: 2017-11-21
DONGGUAN TEC RICH ENGINEERING CO LTD
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AI Technical Summary
Problems solved by technology
[0003] However, the liquid injection unit composed of the liquid injection cup and the rod in the cup has certain disadvantages: since the rod in the cup needs to play the role of sealing the liquid injection cup, the end of the rod in the cup is plugged tightly to the liquid outlet with an interference fit In the process of repeated liquid injection, the rod in the cup may be stuck by the liquid outlet hole and cannot be lifted, resulting in the failure of liquid injection and the need to stop for maintenance, resulting in reduced efficiency and increased maintenance costs
Method used
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[0024] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0025] like Figure 1 to Figure 4 As shown, a liquid injection device of the present invention includes a liquid injection cup 1, a circulation pipe 2, a one-way valve 3, a liquid injection needle 4, a sealing sleeve 5, a first linear drive device 61, a second linear drive device 62, The first fixing base 71 , the second fixing base 72 and the frame 8 . In this embodiment, both the first linear drive device 61 and the second linear drive device 62 use air cylinders.
[0026] Two sliding rails 81 are vertically disposed on the frame 8 , and the first fixing seat 71 is disposed on the frame 8 to slide up and down through the sliding rails 81 . The second linear drive device 62 is fixed on the upper position of the frame 8 and the piston rod of the second linear drive device 62 faces down and is connected with the first fixing seat 71. When the pis...
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The invention discloses a novel liquid injection device, which comprises a liquid injection cup, a circulation pipeline, a one-way valve, a liquid injection needle, a sealing sleeve and a first linear drive device. The liquid injection cup has an inner chamber, the upper end of the liquid injection cup is provided with a liquid inlet opening, one end of the circulation pipe is located in the inner chamber and communicated with the inner chamber, the other end of the circulation pipe is arranged at the bottom of the liquid injection cup, and the bottom of the liquid injection cup is provided with a liquid outlet hole, single The valve is sealed at the liquid inlet opening and can be opened from the outside to the inner cavity. The liquid injection needle has a hollow structure and has a liquid injection chamber. The liquid injection needle has a liquid inlet hole connecting the liquid injection chamber with the outside world. The sealing sleeve slides up and down on the periphery of the liquid injection needle. The first linear drive device drives the liquid injection needle Sliding up and down with the sealing sleeve, the sealing sleeve seals against the liquid injection cup and then the liquid injection needle descends and pushes open the one-way valve so that the liquid injection chamber communicates with the inner cavity. The liquid injection device of the novel liquid injection device can realize sealing and liquid injection without setting a rod in the cup in the liquid injection cup. The structure is simple, and the situation that the rod in the cup will not be stuck can ensure continuous liquid injection.
Description
technical field [0001] The invention relates to the technical field of liquid injection machines, in particular to a liquid injection device. Background technique [0002] Lithium-ion batteries have the advantages of high energy, high battery voltage, wide operating temperature range, long storage life and small size, and have been widely used in military and civilian small electrical appliances. In the production process of lithium batteries, liquid injection is a crucial step, which specifically refers to vacuumizing the formed lithium battery casing before filling it with electrolyte, so that the electrolyte completely wraps the battery core. The equipment to complete the liquid injection process is the liquid injection machine. The commonly used liquid injection machines generally include multiple liquid injection units. Each liquid injection unit includes a hollow liquid injection cup and a cup slidingly arranged in the liquid injection cup. In the middle rod (liquid i...
Claims
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IPC IPC(8): H01M2/36H01M50/627H01M50/645
CPCH01M50/60Y02E60/10
Inventor 袁小东陈浩淞刘红尧
Owner DONGGUAN TEC RICH ENGINEERING CO LTD