JPS6024743B2 - Flux dipping equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for applying a flux liquid to an electrode plate in order to improve weldability between the electrode plate and a strap and a pole portion when constructing an electrode plate group of a storage battery.

A conventional coating device stores a flux liquid in a flux dipping tank, lowers the electrode plate into the tank, and immerses the welded portion of the electrode plate in the flux liquid. In this device, the flux liquid is replenished when it decreases to a certain extent, so the flux liquid level constantly fluctuates, and as a result, the amount of flux liquid applied to the electrode plate changes, causing weldability variations. The object of the present invention is to eliminate fluctuations in the flux liquid level, which is a drawback of secondary kiln devices, and to maintain the flux level at all times to improve weldability.

In order to achieve the above object, the present invention was constructed as follows.

That is, the flux soaking tank located above and the storage tank located below are connected through a flexible pipe. A cylindrical piston with its upper free end protruding a predetermined height into the bond soaking tank hangs integrally from the bond soaking tank, and the piston is attached to a cylinder having a lower free end in a sealed storage tank. By doing so, the immersion tank and the storage tank are connected, and the tip of the piston is equipped with a one-way valve that closes when moving forward and opens when moving backward. In the device of the present invention, first, there is a flux liquid in the piston internal space and a reservoir tank, and by operating the pump consisting of the piston and cylinder, the flux in the piston internal space is gradually removed by the action of a one-way valve. Suddenly, the flux liquid is pushed up from the storage tank into the immersion tank.

When the liquid level in the bonding tank exceeds the height of the piston protruding there, excess flux flows into the internal space of the cylindrical piston, and when the piston retreats, the one-way valve closes. Since the flux is returned to the storage tank by the action, by operating the pump, the amount of flux liquid in the dipping tank can be kept constant until the flux liquid in the piston internal space is exhausted. An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes an immersion tank for a flux liquid 2, which is connected to a storage tank 3 located below by a movable pipe 4.

A cylindrical piston 5 whose upper free end projects a predetermined height into the bond soaking tank 1 hangs integrally from the bond soaking tank 1.
is attached to a cylinder 6 having a lower free end within the storage tank 3. A one-way valve 7 is provided at the tip of the piston 5, which is closed when moving forward and closed when moving backward. Here, the storage tank 3 is separated into an upper chamber 3a and a lower chamber 3b.
A cylinder 6 is provided at b, and a pipe 4 is attached thereto. The lower chamber 3b is sealed by mounting the piston 5, and the upper chamber 3a and the lower chamber 3b are connected through a hole 8 provided in a side wall of the piston 5 through an internal space of the piston 5. When operating this device, first, the flux liquid 2 is injected from the upper chamber 3a.

The flux liquid 2 passes through the piston 5 from the hole 8 and into the lower chamber 3b.
The injection is stopped when the liquid level rises to a certain level in the upper chamber 3a. When the piston 5 is moved up and down in this state, the flux liquid 2 inside the piston 5 moves to the lower chamber 3b by the action of the one-way valve 7, and the height of the piston 5 protruding into the bond soaking tank 1 through the pipe 4 increases. At this point, the flux liquid 2 flows into the piston 5, and when the piston 5 retreats, the one-way valve 7 opens and flows back into the storage tank 3.
By constantly operating the piston 5, the flux level in the counterfeit tank 1 is kept constant. Therefore, if the position of the electrode plate group to which flux is applied is appropriately adjusted to the position of the soaking tank 1 when the piston 5 is raised to its highest position, constant flux liquid application can be achieved at all times. The frequency of replenishment of the flux liquid is determined by the amount of flux liquid stored in the piston 5, so by making it possible to replenish the flux liquid from the upper chamber 3a into the piston 5 as in this embodiment, the replenishment frequency can be further increased. You can do less. In addition, contrary to the above example, the soaking tank 1
It is also possible to perform a pumping action by fixing the reservoir tank 3 and moving it up and down.

As described above, according to the present invention, there is no need for complicated adjustment of the flux liquid level, and the number of times the flux liquid is replenished can be extremely reduced, which is of great industrial value.

[Brief explanation of drawings]

The drawing is a sectional view showing an embodiment of the present invention. 1 is a dipping tank, 2 is a flux liquid, 3 is a storage tank, 3a is an upper chamber, 3b is a lower chamber, 4 is a pipe, 5 is a piston, 6 is a cylinder, 7 is a one-way valve, and 8 is a hole.

Claims (1)

[Scope of Claims] 1. The flux immersion tank located above and the storage tank located below are connected by a flexible pipe, and on the other hand, the pipe is integrally suspended from the immersion tank and the upper free end is inserted into the immersion tank. The immersion tank and the storage tank are connected by attaching a cylindrical piston projecting to a predetermined height to a cylinder in the storage tank whose lower free end is sealed. Flux dipping device with one-way valve that closes when moving forward and opens when moving backwards. 2. The storage tank is separated into an upper chamber and a sealed lower chamber, and the upper chamber and the lower chamber are connected through a piston internal space provided on the side wall of the piston, and a flexible pipe is attached to the lower chamber. A flux immersion device according to scope 1.