JP2002255290A - Liquid injecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly and accurately perform a liquid injection into a bag-shape container. SOLUTION: The lower end section of the bag-shape container 1, of which the opening 1a is located on the top, is housed and supported in the recess 71 of a base 1. Then, a turning arm 73 is attached to the post 72 of the base 7. Then, this liquid injecting device is constituted in such a manner that a guide section 8 provided at the distal end of the turning arm 73 may push and open the opening 1a of the container 1. The guide section 8 is formed into a funnel shape, and accepts and guides the nozzle 5a of a feeding pipe 5 on the top while pushing and opening the opening 1a. Therefore, the distal end of the nozzle 5a is surely inserted to a specified depth in the container 1, and a liquid can be smoothly and accurately injected in the container 1 through a feeding pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a liquid injection device suitable for producing, for example, a polymer battery (storage battery).

[0002]

2. Description of the Related Art Polymer batteries are known.
Ttery) is manufactured by injecting an electrolytic solution into an aluminum container in which an electrode material is stored in advance, and then sealing and molding the container. Then, through the repetition of charging and discharging through the positive and negative electrode portions drawn out from the electrode material in the container, power storage for a predetermined capacity is performed.

As described above, in the production of a polymer battery, after a container is sealed, power storage for a predetermined capacity is performed through repetition of charging and discharging from the outside via an electrode.
If air remains in the container, smooth charging / discharging action is hindered by moisture contained in the air, and it becomes difficult to store electricity at a specified capacity value.

[0004] Therefore, in the production process of the polymer battery, the electrolyte is injected into the container in the atmosphere, and thereafter,
Since it is not always technically easy to perform hermetic sealing while evacuating the inside of the container with a vacuum pump or the like, conventionally, a series of manufacturing operations from the injection of the electrolyte into the container to the sealing of the inlet are performed in a vacuum chamber. It is done in.

FIG. 3 illustrates a state in which an electrolytic solution is injected into a container in a vacuum chamber.

[0006] Since the electrode material 3 accommodated in the container 1 has a rectangular shape with a small thickness, the outer shape of the container 1 as a whole is a film-like sheet as if the electrode material 3 is wrapped. It is formed in a flat bag shape by folding and bonding.

Therefore, in the step of injecting the electrolytic solution, a pair of vacuum chucks 4, 4 as shown by a dashed line in the figure are arranged at a position immediately before the step where the container 1 is positioned at the injection position shown in the figure. The opening 1a is formed by the pair of vacuum chucks 4 and 4 sucking and pulling the opposite left and right side surfaces of the container 1. Next, when the container 1 in which the opening 1a is formed is sent to the illustrated position by the transporting means (not shown), the entire container is lifted in the direction of the arrow Z, and the inside of the container 1 is opened through the opened opening 1a. The nozzle 5a at the lower end of the supply pipe 5 is inserted into
The electrolytic solution in the supply container 6 is injected into the container.

[0008] The supply pipe 5 itself is attached and fixed through the upper lid 2a of the vacuum chamber 2, and a predetermined amount of electrolyte is supplied and injected by opening and closing a valve 5b provided in the middle.

[0009]

As described above, in the production of a polymer battery, the container 1 is placed in the vacuum chamber 2.
The electrolytic solution is injected into the inside of the container. Since the container 1 is made of aluminum and has a flat bag shape, the spread width (d) of the opening 1a opened by the vacuum chucks 4 and 4 is relatively small. While the container 1 in which the portion 1a is formed is conveyed to the injection position, the opening 1a is narrowed by the restoring force and the opening state becomes unstable. A case in which a predetermined amount of electrolyte is not injected into the container 1 without being inserted to a predetermined depth without being caught near the entrance of the opening 1a, or in the worst case, the tip of the nozzle 5a cannot be inserted into the opening 1a. That happened.

Also, as described above, the nozzle 5a is
If a part of the electrolyte adheres to the inside of the sealing port without being inserted at a predetermined depth in the inside, the injection amount will be insufficient and the sealing at the part where the electrolyte has adhered will be insufficient. It became complete and caused a decrease in the yield of polymer batteries.

Accordingly, an object of the present invention is to provide a liquid injection apparatus in which an operation of injecting an electrolyte or the like is performed appropriately and smoothly.

[0012]

According to the present invention, there is provided a liquid injection device for injecting a liquid into a container from an upper opening through a supply pipe, a base for supporting the container with the opening facing upward, A guide rotatably provided on the base and capable of guiding the supply pipe toward the opening;
The liquid is injected into the container via a supply pipe guided by the guide.

As described above, according to the liquid injection device of the present invention, since the guide for guiding the supply pipe to the container opening is rotatably provided on the base supporting the container, the supply pipe is guided by the guide. While being inserted properly into the opening,
The liquid is easily and smoothly injected.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a liquid injection device according to the present invention will be described below in detail with reference to FIGS.

The same components as those of the conventional liquid injection device shown in FIG. 3 are denoted by the same reference numerals, and detailed description is omitted.

FIG. 1 is an exploded perspective view showing an embodiment of a liquid injection device according to the present invention, and FIG. 2 is a side view showing a state in which an electrolyte is injected into a container in the device shown in FIG. FIG.

As shown in FIG. 1, a container 1 is
A concave portion 71 for receiving and housing the lower end of the base 7 from the Z1 direction is formed on the upper surface thereof, and the base 7 is configured to be moved in the vacuum chamber 2 by a driving means (not shown).

A support 7 is provided at the longitudinal end of the base 7.
An arm 73 is attached to the end of the support column 72 so as to be rotatable around the rotation axis P in the direction of arrow R, that is, in the direction of the opening 1a of the container 1 within a range of 90 degrees. The guide portion 8 is attached and fixed to the distal end of the arm 73.

The guide portion 8 has a funnel-shaped guide hole 8a, is provided at the injection position, and rotates the arm 73 by 90 degrees in the direction of arrow R from the illustrated state by an arm drive source (not shown). At this time, the funnel-shaped tip of the guide hole 8a is inserted while pushing open the opening 1a of the container 1 supported by the base 7.

Thus, in the vacuum chamber 2,
The container 1 is sandwiched between the concave portions 71 of the base 7 and stands upright and stable, and the distal end of the guide portion 8 is fitted into the opening 1a. .

Therefore, in the present embodiment, the container 1 housed in the concave portion 71 of the base 7 is positioned at the injection position shown in FIG. The opening 1a is formed by a pair of vacuum chucks at the position of the previous process. Next, when the container 1 is sent to the pouring position shown in the figure, the arm 73 rotates in the direction of the arrow R by the operation of the arm drive source (not shown), and the tip of the guide portion 8 is moved to the opening 1a of the container 1. Inserted. In this state, the entire base is lifted in the direction of arrow Z by a lifting mechanism (not shown), and the nozzle 5a of the upper supply pipe 5 is turned into the guide hole 8 of the guide portion 8 having a wide opening.
a is easily guided and guided into the nozzle 5 as shown in FIG.
a It is inserted properly so that the tip portion reaches a predetermined depth in the container 1.

The column 72 and the arm 73 are provided with locking portions 72a, 73a, respectively.
a and 73a, the tension spring 74 is interposed therebetween, so that the tension spring 74 is urged by the spring pressure and the right angle (90
The arm 73 is stabilized at the rotation position of (degree).

Next, while the tip of the nozzle 5a of the supply pipe 5 is properly inserted into the container 1 supported on the base 7, a predetermined amount of the electrolyte is supplied from the supply container 6 by opening and closing the valve 5b. Supplied. Then, sequentially, the arrow Z1 of the base 1
The arm 73 is returned from the vacuum chamber 2 via the 90-degree clockwise rotation return of the arm 73 in the illustrated clockwise direction, and the container 1 opening 1a is sealed and sealed, and the outer shape of the aminium container 1 is formed as necessary. And after cutting, the electrodes 3a, 3b
A polymer battery having a predetermined capacity value is manufactured by the charging / discharging operation through the terminals.

As described above, according to the liquid injection device of the present invention, the nozzle tip of the supply pipe can be easily, accurately and smoothly inserted to a predetermined depth in the container, so that the production of a polymer battery or the like can be achieved. Efficiency can be greatly improved.

In the above embodiment, the case where the container is moved up and down via the base 7 at the pouring position has been described. However, the base 7 does not move up and down, and the nozzle 5a can expand and contract downward. , And at the time of injection, extend and insert into the container,
When the injection is completed, the container may contract and separate from the container.

[0026]

According to the liquid injection device of the present invention, the liquid can be stably and easily injected into the container. Therefore, the liquid injection device is applied to, for example, the injection of an electrolytic solution of a polymer battery, and has a remarkable effect in practical use. be able to.

[Brief description of the drawings]

FIG. 1 is a partially cutaway exploded perspective view showing an embodiment of a liquid injection device according to the present invention.

FIG. 2 is a main part side view showing a state in which the device shown in FIG. 1 injects a liquid.

FIG. 3 is a partially cutaway front view showing a conventional liquid injection device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 1a Opening 2 Vacuum chamber 3 Electrode material 5 Supply pipe 5a Nozzle 5b Valve 6 Supply container 7 Base 71 Depression 72 Supporting column 73 Arm 8 Guide part

Claims (2)

[Claims] 1. A liquid injection device for injecting a liquid into a container from an upper opening through a supply pipe, a base supporting the container with the opening facing upward, and rotatable on the base. And a guide part capable of guiding the supply pipe toward the opening, and configured to inject the liquid into the container via the supply pipe guided by the guide part. A liquid injection device characterized by the above-mentioned. 2. The liquid injection device according to claim 1, wherein the guide section has a guide hole formed in a funnel shape.