JP2005190748A - Inserting method of electrode group for storage battery into container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inserting method of an electrode group for a storage battery into a container eliminating such inconvenience that when the electrode group for the storage battery is inserted into the container, although a large electrode group is held and deeply inserted into the container, after folding is released, the electrode group falls by the self-weight and causes inclination or position slippage in the container. <P>SOLUTION: In a stage inserting the electrode group 1 into the container to the midway, both sides 1c, 1c of the electrode plate group 1 are pressed and held with container side pressing cylinders 9, 9 installed on both sides of the container 2 through both side walls 2a, 2a of the container 2, the electrode group 1 is held in its position, and in this state, the pressure holding of the upper part of the electrode group is released, and then the upper surfaces of positive and negative straps 1a, 1a of the electrode group 1 are pressed with pressing members 8b, 8b, and the electrode group 1 is inserted into the bottom of the container 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for inserting an electrode plate group for a storage battery into a battery case.

An electrode plate group formed by laminating a plurality of positive and negative electrode plates via separators or retainer mats is assembled as a storage battery by inserting this into a battery case.
Conventionally, as disclosed in Patent Document 1, the method for inserting the electrode plate group into the battery case is as follows: As disclosed, a method has been proposed in which the battery case and the electrode plate group are opposed to each other and the electrode plate group is inserted into the battery case from the lateral direction.
In recent years, the applicant disclosed in Patent Document 3 a novel method for inserting an electrode plate group applicable to the production of a sealed lead-acid battery. In this method, the lower end portions of both side surfaces of the electrode plate group are pressed and inserted into the battery case so that both end plates of the electrode plate group can be smoothly inserted without buckling.
JP 56-71279 A JP 9-31169 A JP2003-242944

However, in recent years, when the above-described conventional insertion method is adopted for manufacturing a large-sized storage battery having a large mass, the following problems arise. That is, in the lateral insertion method shown in Patent Document 2, the size of the equipment is increased, the equipment cost is increased, or the lowermost part of the electrode plate group placed horizontally during insertion due to strong friction between the battery case and the electrode plate group. There is a problem that a problem such as damage to the electrode plate at the end located in the region occurs.
Moreover, in the insertion method shown by patent document 1 and 3, in the insertion to a battery case, since holding | grip of an electrode group cannot be maintained until it inserts completely in a battery case, the grip was cancelled | released in the middle of the insertion When a large electrode plate group with a large mass falls due to its own weight, it is stored in a state where the electrode plate group is deformed or damaged by the impact of the drop, the stored electrode plate group is displaced, or the electrode plate group is tilted. Problems occur.
The present invention solves these problems, and even when the large electrode plate group described above is inserted into the battery case, the insertion operation can be performed stably and satisfactorily without dropping by its own weight. It is in providing the insertion method to the battery case of the electrode group for storage batteries made to be able to assemble a good storage battery.

  The method of inserting the electrode group of storage batteries into the battery case according to the present invention is a stage where the electrode plate group is inserted partway into the battery case, and both sides of the battery case are pressed by the battery side press cylinders arranged on both sides of the battery case. Press the wall surface, press and hold both sides of the electrode plate group across the both side walls of the battery case, hold the electrode plate group in that position, and in this state, after releasing the upper electrode clamp of the electrode plate group, The positive and negative straps of the electrode plate group are pressed from above by the left and right pressing members, and the electrode plate group is inserted to the bottom of the battery case.

  By the above-described method of the present invention, even if the electrode plate group has a large mass, the electrode plate group can be inserted without being damaged or tilted without falling by its own weight, and is stably and satisfactorily stored in a predetermined position in the battery case. A storage battery is obtained.

The electrode plate group is formed by stacking a desired number of positive electrode plates and negative electrode plates alternately via a retainer mat as a separator in a conventional manner, and connecting positive and negative straps that connect the left and right ear rows protruding above the laminate. Then, the positive and negative pole columns are established on the positive and negative straps to form a large group of large plates with large mass.
First, the both side surfaces of this electrode plate group are inserted deeply into the battery case while being pressed and clamped by a desired means.
At this stage, the piston rods of a pair of left and right press cylinders arranged in advance on both sides of the battery case are advanced to press the both side walls of the battery case, and in the middle of the battery case through the pressed side walls. The both side surfaces of the electrode plate group inserted up to are pressed. The location where the both side surfaces of the battery case are pressed by the pair of left and right cylinders is preferably the center of both side surfaces, and is general.
From this state, the pressing holding by the left and right pressing cylinders pressing and holding the upper portions of both side surfaces of the electrode plate group is released, and the pair of left and right pressing members disposed above the electrode plate group are moved downward by the pressing cylinder. By pressing the positive and negative straps of the electrode plate group and pressing and inserting the electrode plate group to the bottom of the battery case, a storage battery correctly stored in a predetermined position in the battery case is obtained.
After the insertion is completed, the pressure on both side walls of the battery case is released, and the battery case in which the electrode plate group is inserted and accommodated is transported to the next step. Then, a new static electric tank is placed at a predetermined location where the electrode plate group is inserted, and the above-described operation of inserting the electrode plate group is performed.
Next, detailed embodiments of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, 1 is an electrode plate group in which 25 positive electrodes and 26 negative electrodes are alternately laminated via a retainer mat, 1a is a positive, negative strap, 1b is a positive, negative column. The mass of the large electrode group 1 configured in this manner was about 50 kg. Reference numeral 2 denotes a battery case that accommodates the electrode plate group 1.
Reference numeral 3 denotes a pair of left and right lower cylinders disposed opposite to the lower end portions of both side surfaces 1c, 1c of the electrode plate group 1, and as will be described later, lower end portions and intermediate portions of the both side surfaces 1c, 1c of the electrode plate group 1 are shown. The part is pressed. Guide pieces 3b and 3b are attached to the tips of the piston rods 3a and 3a, respectively. The pair of lower cylinders 3 and 3 are slidable on the respective rails 4 and 4 arranged in the vertical direction so as to be movable up and down.
Reference numeral 5 denotes a pair of left and right upper cylinders provided above the pair of left and right lower cylinders 3 and 3. As will be described later, the cylinders 1 press the center and upper portions of both side surfaces 1c and 1c. It is. The pair of left and right upper cylinders 5 and 5 and the left and right rails 4 and 4 are held and fixed to a U-shaped holding frame body 6.
Reference numeral 7 denotes a pressing cylinder located above the electrode plate group 1 and held downward and fixed to the center of the holding frame 6, and both end portions of the substrate 8a fixed horizontally to the lower end of the piston rod 7a. A pair of left and right plate-like pressing members 8b, 8b hanging from the front is attached, and the tips of the pressing members straddle the positive and negative straps 1a, 1a of the electrode plate group 1 at right angles to the positive and negative straps 1a. , 1a is made to act so that the front and rear end portions in the length direction of each strap 1a are equally pressed over the entire length from above. The pressing members 8b and 8b do not have to be plate-shaped. In short, it goes without saying that at least a pair of pressing members such as hooks corresponding to pressing the pair of positive and negative straps 1a, 1a may be used.
Reference numeral 9 denotes a pair of left and right battery case side pressing cylinders disposed opposite to the left and right wall surfaces 2a, 2a of the battery case 2 located directly below the electrode plate group 1. As will be described later, the battery case 2 is placed on a table 10 that can move up and down. The pair of left and right battery case side pressing cylinders 9 and 9 are supported by left and right vertical support rods 11 and 11 disposed on the upper surface of the base 10.
The base 10 is supported from the lower surface by a rotary ball screw 14 connected to a servo motor 12 provided therebelow via a belt 13 and is rotated forward and backward by forward and reverse rotation of the servo motor 12. The battery 14 is configured to be movable up and down by a screw 14 so that the battery case 2 can be moved up and down as the table 10 is moved up and down.
As described above, an example of an apparatus for carrying out the method of inserting the electrode plate group of the present invention into a battery case was constructed. With this apparatus, the work of inserting the electrode plate group 1 into the battery case 2 is performed as follows.
First, an empty battery case 2 is placed on a table 10 at a predetermined position as shown in the figure. On the other hand, a base plate 15 indicated by an imaginary line capable of moving back and forth in the direction perpendicular to the paper surface in the drawing is advanced to a predetermined position, the electrode plate group 1 is placed on the upper surface, and then the piston rods of the left and right upper cylinders 5 and 5 are placed. 5a and 5a are moved forward to press and clamp the central portions of both side surfaces 1c and 1c of the electrode plate group 1, and then the base plate 15 is moved backward. Next, the piston rods 3a, 3a of the left and right lower cylinders 3, 3 are moved forward to press the lower end surfaces on both sides of the electrode plate group 1, and the thickness of the lower end portion of the electrode plate group 1 is set to the upper end opening 2b of the battery case 2. Compressed so as to have a thickness slightly smaller than the diameter of the opposite. As described above, in the state where the lower end surfaces on both sides of the electrode plate group 1 are pressed by the lower cylinders 3 and 3, the guide pieces 3b and 3b attached to the tip ends of the piston rods 3a and 3a of the lower cylinders 3 and 3 are illustrated. As described above, the electrode plate group 1 is placed in a state of hanging downward from the lower surface of the electrode plate group 1.
From this state, the base 10 is raised by the forward rotation of the servo motor 12, and the left and right guide pieces 3b, 3b are put in the upper end opening 1b of the battery case 2, and the opposing walls 2a, 2a of the openings are formed. Make it desirable on the inside. From this state, the piston rods 3a and 3a of the left and right lower cylinders 3 and 3 are slightly retracted to release the pressure pinching by the piston rods 3a and 3a. Next, the battery case 2 is further raised, and the lower end portion of the electrode plate group 1 is guided by the left and right guide pieces 3b, 3b and inserted into the upper part of the opening of the battery case 2. Since the piston rods 3a and 3a are engaged with the upper end of the battery case 2, the left and right lower cylinders 3 and 3 rise along the left and right vertical rails 4 and 4 as the battery case 2 rises.
When the battery case 2 is raised by a predetermined distance, the lower portions of both side surfaces 1c, 1c of the electrode plate group 1 are pressed and held again by the piston rods 3a, 3a of the left and right lower cylinders 3, 3 at the raised position. Next, the piston rods 5a, 5a of the upper cylinders 5, 5 are retracted to release the pressing of the electrode plate group 1 by the upper cylinders 5, 5, and the servo motor 12 is rotated in the reverse direction to lower the table 10. Then, the left and right lower cylinders 3, 3 that press and hold the electrode plate group 1 are moved down together with the electrode plate group 1.
Next, the upper left and right upper cylinders 5 and 5 again press and hold the upper portions of both side surfaces 1c and 1c of the electrode plate group 1, then the left and right lower cylinders 3 and 3 are released from the pressing state. 12 is rotated forward to raise the battery case 2, and the electrode plate group 1 is further inserted into the battery case 2 by the rise amount.
The above operation is repeated a few times, and the electrode plate group 1 is inserted into the battery case 2 until both side surfaces 1c, 1c thereof are opposed to the left and right battery case side pressing cylinders 9, 9 of the battery case 2, and After that, the piston rods 9a, 9a of the battery case side pressing cylinders 9, 9 are moved forward to press the both side surfaces 1c, 1c of the electrode plate group 1 through the both side wall surfaces 2c, 2c of the battery case 2, and from this state, The upper cylinders 5 and 5 are released from pressing.
The center C of the side surface 2c is preferably used as the location where the side walls 2c, 2c of the battery case 2 are pressed by the piston rods 9a, 9a of the left and right battery case side pressing cylinders 9, 9 as shown by the dotted frame in FIG. Although it is general, of course, it is not limited to this. For example, it may be an upper part or a lower part from the central part C. In short, any part that can press and hold the both side surfaces 1c, 1c of the electrode plate group 1 inserted halfway in the battery case 2 may be used.
Conventionally, when the gripping member holding the upper part of the electrode plate group inserted halfway in the battery case is released, if the electrode plate group is a large electrode plate group having a large mass, There is a disadvantage that the battery falls by its own weight and falls into the bottom of the battery case and is stored in a tilted state or displaced.
However, in the present invention, even if the pressing and clamping of the upper cylinders 5 and 5 that press and hold the upper part of the electrode plate group 1 is released as described above, the both side surfaces of the electrode plate group 1 remain on both side wall pressing cylinders 9. , 9 is prevented from being dropped due to the large mass of the electrode plate group 1 and held in that position, so that the conventional inconvenience does not occur. Thus, from this state, the piston rods 7a and 7a of the pressing cylinders 7 and 7 above the electrode plate group 1 are moved downward, and the left and right pressing plates 8b and 8b are moved downward to move the positive and negative straps 1a and 1a. The electrode plate group 1 can be completely inserted into the battery case 2 to the bottom by pressing the upper surface of the battery case, and can be stably and satisfactorily stored in a predetermined position in the battery case 2. A storage battery can be manufactured with high efficiency without manufacturing loss.

  When the insertion of the electrode plate group 1 into the battery case 2 is completed, the battery case 2 in which the left and right battery case side pressing cylinders 9 and 9 are released and the table 10 is lowered to house the electrode plate group 1. In other words, the storage battery is transported to the next process, and a new battery case is placed on the base 10, while the base plate 15 is moved forward again to place a new electrode plate group thereon, and both side surfaces are placed on the upper side. The cylinders 5 and 5 are pressed to retract the base plate 15, and thereafter the electrode plate group is inserted into the battery case of the present invention. In this way, it is possible to manufacture a large-sized storage battery with a large mass that is inserted completely into the battery case one after another without dropping due to the weight of the electrode plate group, and stored well.

  In the first embodiment, the battery case 2 is raised and the electrode plate group 1 is inserted into the battery case 2, but instead of raising the battery case 2, the electrode plate group 1 is lowered and placed in the battery case 2. Of course, it may be inserted. When this is performed using the apparatus shown in FIG. 1, the support frame 6 is attached to an elevating cylinder device (not shown) so as to be movable up and down, and the lower cylinders 3 and 3 and the upper cylinders 5 and 5 are mounted. After the electrode plate group 1 is pressed and clamped, the frame 6 is lowered, and when the left and right guide pieces 3a and 3a are inserted into the battery case 2, the left and right lower cylinders 3 and 3 are released from the pressure, Further, the frame body 6 is lowered, and the electrode plate group 1 is further inserted deeply into the battery case 2, and at this time, the side wall surfaces 2c, 2c of the battery case 2 are pressed by the battery case side pressing cylinders 9, 9, The both sides 1c, 1c of the electrode plate group 1 inserted deeply through the both side walls 2c, 2c of the tank 2 are pressed to fix the electrode plate group 1, and in this state, the pressing by the upper cylinders 5, 5 is released. After that, the pressing member 8b, 8b is moved down by operating the pressing cylinder 7. Positive electrode plate group 1, the negative strap 1a, to complete the insertion operation by the electrode plate group 1 by pressing the 1a downward to insert to the bottom surface of the battery case 2.

As described above, according to the method of inserting the electrode plate group of the present invention, the large electrode plate group is completely inserted into the battery case and falls due to its own weight, and the electrode plate group is deformed or misaligned. The inconvenience due to the insertion method can be eliminated, and a stable and good storage battery can be assembled.
It should be noted that the force that presses both side walls of the battery case and presses and holds the inner electrode plate group through the pressed both side walls is the same as the conventional synthetic resin molded battery case. Therefore, in Example 1 and 2 above, about 0.7 kN is sufficient, and there was no adverse effect on the battery case due to pressing. If desired, the portions to be pressed on both side surfaces may be reinforced by increasing the thickness.
In addition, the apparatus and means until the electrode plate group 1 is inserted into the battery case 2 halfway as described above are not limited to the means performed in the first and second embodiments, and a desired apparatus or means is adopted. Needless to say.

The side view which cut away a part of one example of an apparatus which enforces the method of the present invention. The side view of the battery case which shows an example of the press location of the battery case pressed by the battery case side press cylinder in the Example of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrode plate group 1a Strap 1c Side surface of electrode plate group 2 Battery case 2a Side surface of battery case 3 Lower cylinder 4 Rail 5 Upper cylinder 6 Support frame 7 Press cylinder 8b Press member 9 Battery case side press cylinder

Claims (1)

  At the stage where the electrode plate group is inserted partway into the battery case, the both side walls of the battery case are pressed by the battery side surface pressing cylinders arranged on both sides of the battery case, and both side surfaces of the electrode plate group are connected to the both side walls of the battery case. Hold the electrode plate group in its position by pressing it over, and in this state, after releasing the upper electrode clamp, press the positive and negative straps of the electrode plate group from above with the left and right pressing members. And inserting the electrode plate group to the bottom of the battery case, the method for inserting the electrode plate group for a storage battery into the battery case.

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