JPS5874156A - Removing method of surplus treatment liquid adhering to immersion treatment substance - Google Patents

Abstract

PURPOSE:To remove a surplus liquid in a recessed part of a treatment substance, etc. efficiently and exactly, by providing a surplus liquid removal promoting stage in which a centrifugal treatment case is set to an inclined attitude after its centrifugal rotation in succession to its immersion treatment, and it is rotated slowly. CONSTITUTION:In the immersion treatment process, a treatment case 29 is raised high temporarily by a lifting stage, and is advanced onto a treatment liquid 56. Subsequently, the treatment case 29 is immersed into the treatment liquid 56 by about 2/3, and a painting material is made to adhere to a treatment substance 83 such as a counter-sunk screw, having a recessed part for a contained driver. When this immersion treatment stage has ended, the case ascends, is rotated quickly in a vertical attitude, and centrifugally removes the contained treatment liquid. Subsequently, the treatment case 29 is moved so as to be inclined upward by a tilted cylinder 24, and is rotated slowly in its inclined attitude. Subsequently, the case 29 is returned to its vertical attitude while rotating it slowly, and the final centrifugal removal is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a method for removing excess processing liquid adhering to immersed objects, and in particular, for removing immersed objects (by immersing them in a predetermined processing liquid). It does not end with simply removing the excess processing liquid by centrifugal rotation, but it is intended to remove the surplus processing liquid from the concave part of the processing object and/or the vicinity of the contact area, for example, which cannot be removed by that alone. .

For example, the surfaces of mechanical parts such as screws and bag nuts are coated with various coatings using the dipping method, but in this case, once the dipping is finished, the dipping case is used as it is and is used as a centrifugal treatment case. Care has been taken to provide a high-quality product that is uniform and has little unevenness by centrifugally removing all remaining processing liquid.

However, the methods up to now have only been able to treat the above-mentioned centrifugal treatment as the final food, and have not been able to handle objects with recesses, such as the recesses of bag nuts or the recesses of screw plates. : If the elephant is removed, the recess will be removed from the back of the centrifugal processing case,
It is fine if it is oriented in the direction of centrifugal force, but if it is oriented in the opposite direction, the excess processing liquid remaining in the recess will be removed by centrifugation, resulting in scratches and instead promoting adhesion. Therefore, there were many cases in which a larger amount of processing liquid than necessary solidified in the recesses, resulting in remaining defective parts. The same problem occurs when KIN nuts etc. are in contact with each other, or when bag nuts are in contact with each other, and the processing liquid that has accumulated in excess of the necessary amount near the contact area cannot be completely removed using conventional methods. This is the translation.

This invention was made with attention to these facts, and is therefore characterized by the fact that a processed material with or without a recess is housed in a centrifugal processing case and placed in a predetermined processing solution. An immersion treatment step in which the product is immersed and then raised to the outside of the treatment solution.

a first centrifugal removal step in which excess processing liquid is removed from the processed material by rotation of the centrifugal processing case around the vertical axis;

While slowly rotating the centrifugal processing case in a tilted position, the vertical axis The method includes a step of promoting excess liquid removal in which the centrifugal processing case is returned to its original position, and a second centrifugal removal step in which the returned centrifugal processing case is rapidly rotated centrifugally.

The present invention will be explained below with reference to an embodiment shown in the drawing.

FIG. 1 shows the removal device as a whole, and in the same figure (1!5 is the front side which is the front of the device).

In the diagram (1), there are a total of four vertical columns erected on the front, back, left, and right sides, and their base ends are connected by base frames (2), while the page frames (3) are connected between their upper ends. A three-dimensional gate-shaped processing frame (4) is constructed by connecting the two.

Running rails (6) with rail stoppers (!S) protruding from the front ends of the books corresponding to the left and right sides of the page frame (3) are arranged in parallel, and running trolleys (7) are installed in parallel through these rails (6). ) is provided.

This traveling trolley (7) can freely move forward and backward in the front and rear directions, and a lifting guide frame (8) and a lifting drive unit (9) hang from the trolley (7) in parallel as accompanying turtles. ′：
It is fixed by lowering it by 1 degree.

In this case, the lifting guide frame (8) is a pair of left and right rectangular cylindrical lifting saws aO and their lower ends. ), while the elevating drive screw shaft (9) is arranged at the center of the front side thereof and is configured to be rotated reciprocally by the upper elevating drive section (2)K.

The lifting guide frame (8) has left and right lifting V-V bodies (towards).
An elevating arm (toward) that is raised and lowered along the front is installed in a forward-extruding manner. This elevating arm (2) has a pair of left and right arm bodies (to) fixed to both sides of a team base frame (to) equipped with elevating guide rollers (2)... At the same time, it is formed as a frame body with a bottom plate aη integrally welded between the two main bodies (to), and is fixed to the front center of the team base frame (2). - Lifting force is applied when the lifting drive screw shaft (9) is screwed together, and the first
The lifting stroke is set within the range shown by the imaginary line of the lifting guide loaf α4 in the figure.

On the other hand, a pair of left and right pivot bearings α are fixed to the front end of this lifting arm (toward), and by setting pivots on these, the vertical case rotating head (2) can be oriented (rotated) left and right. It is pivoted through the center.

The head (2) is equipped with a hydraulic motor (2) and a gear pock (6) at its upper end, and is supported in a well-balanced manner halfway down the bottom. It is equipped with a tilt cylinder so that it can be tilted approximately 45 degrees forward from a normal vertical position.

The bottom bracket (2) of the lifting arm (toward) is hung in an L-shape from the bottom bracket (2). It is devised so that the state can be obtained.・
- This head (2) has a vertically oriented centrifugal rotating shaft (end) supported on it, and its lower end protrudes below the outside of the head (2).

As shown in the first figure, a vertical shaft-type centrifugal processing case 4 is attached to the lower end of this centrifugal rotating shaft (toward) with bolts.

This processing case is of a small capacity (small diameter) type in Figure 1, but in order to make its structural characteristics easier to understand, it has a large capacity (large diameter) ffl! This will be explained in the processing case letter.

Figures 2 and 3 show its structure. Generally speaking, it has an inner case (1) on the innermost periphery and an outer case (2) on the outer periphery. It is assembled with a prevention tube (to).

That is, the structure of the outer case (2) integrates an outer bottom plate (within) having an inner bottom ring and an outer bottom ring concentrically with an outer cylindrical body (within) above the bottom plate, and Outer bottom plate (2)
The truncated cone-shaped outer core body (2) is greatly bulged and integrated at the upper center of the body, while the outer core body (2) is surrounded by a forest.

Vertical reinforcing plates (2) in a radial equiangular arrangement are integrally arranged, and the upper ends of these longitudinal reinforcing plates (2) are provided with 7 lunges for attachment to the upper part, and the horizontal reinforcing plates (2) are provided in the middle.・It is fixed and integrated.

In this case, the outer bottom plate (to) and the outer cylinder body (to) are made of punched metal with an opening degree of 30% and provided with a large number of round or elongated hole-shaped $2 exclusion passage rows.

One-way case (to the inner core body) and inner bottom plate (2)
and a cylindrical body, the whole of which is made of mesh as shown in FIG. 4, and has a first exclusion row.

This inner case (to) is fixed to the outer case (b) with bolts at the center, and ring rods are interposed at various places between the inside and outside (see Figure 4). A gap for promoting outflow is provided as shown in the figure.

In addition, as shown in the conventional example shown in Fig. 6, the wind noise prevention tube has a vertical reinforcing plate that generates wind noise due to rapid centrifugal rotation. In this case, in order to improve the soundproofing effect, the removable and removable rotating base on the side of the 6th rotating shaft (toward), which has an elongated hole (or round hole) as shown in Figure 5, is bolted to the base. It is installed.

The centrifugal processing case frame and its operating system are constructed in this way, and the immersion processing tank and other means for carrying in and out thereof are constructed as follows.

First of all, regarding the processing tank (small size), its structure is shown in Figures 7 to 10. It is equipped.

The main body ■ has a cylindrical vertical body part and a diagonal body ring integrally connected to the upper side of the body part, and the upper end is completely opened, and the upper cover shown in Fig. 7 can be freely attached and detached there. Here, the ring is a stirring door that can be opened and closed at the upper part of one side of the vertical body part, and as shown by the broken line in the first figure, the ring is a stirring door that corresponds to the slightly lower part of the door branch. The processing liquid, which is paint, is stored. Also, the shoe is a hanging piece.

This processing tank (1) is equipped with the following lifting/lowering closing device in order to completely prevent scattering during centrifugation, which will be described later.

The main parts of the device are shown in Figure 9 (front view) and Figure 10 (plane view).
As shown. That is, - is an adjustment window recessed in a U-shape on the upper end of the vertical body part (2) and the outer wall of the vertical body part (2) to correspond to the adjustment window on both sides of the window. A groove is formed. In is a joint plate, which integrates an arc-shaped inner blocker plate fixed to the inside and an outer blocker plate branch of the same shape, separated from each other inside and out, which constitutes an opening/closing response plate. At the same time, the inner closing plate is attached to the inner periphery, and the outer closing plate ring moves up and down along the guide groove as shown in Fig. 9, and when it moves downward, it opens against the return spring It will return automatically with the spring ■.

As will be described later, this means that the L-shaped return stopper (to)
0 It is a relationship that is responded to by going up and down accordingly.

On the other hand, the oblique body section is formed in a U-shaped frame with the opening facing upward, and its oblique bottom wall allows the processing case (toward) to be tilted as described later, and the processing liquid to be removed and dripped into the vertical body section. It is a turtle that allows the water to flow back into the ring.

The immersion treatment tank is constructed in this way and is kept on standby at a predetermined position, but since there is another special purpose in the means for carrying in and out, this will be explained below.

That is, Fig. 1, Fig. 7, and Fig. 8 are explanatory diagrams thereof, and the base is the first processing tank installation stand on which DK is placed on the bottom of the processing frame (4). A pair of left and right loaf branches are arranged as shown in FIG.

On the other hand, ■ is a treatment tank transport trolley with four casters and a steering hand A/
(c), and the same pair of left and right second treatment tank installation stands (2) and floating rollers are mounted on the plywood.

In this case, the first centering stopper (c) of both treatment tank installation bases (2) will protrude from each roller (A).
11, and this stopper (2) is always projected, while the second centering stopper q→... is.

A pair of first treatment tank installation stands on the front side of the trolley.
A pair of DKs are protruding from the upper front side (Il [DK) as shown in Fig.
It is removably fitted to the k.

Here, since there are two types (multiple types) of centrifugal processing case sizes, small and small, the processing tanks are also large and small as shown in Figure 7, and regardless of their size, the first and second centering stoppers (
(c) This configuration is adopted in order to install them in completely concentric positions in (c). That is, with the large processing tank as the largest reference, the first and second centering stoppers (c) t◆ are arranged in accordance with its diameter ([1).

For the small processing tank ■, its body diameter (d is small and it does not fit, so the diameter (D4 adjustment base (to) is attached and the processing tank - is a set piece on the base plate (to)) - It was possible to standardize the stopper (to) by fitting the K-te. ,...

(to) is a forward stop frame erected on the middle related frame frame horizontally installed halfway between the front and back of the base frame (2). ) The front surface of the lower end touches and stops. In addition, the force is applied to the elevating guide frame (8) at the time of the stop using the Kunde stand installed on the base frame (2) in a left and right direction.
) from the left and right using clamp cylinders ■.

Therefore, the operational status of the immersion treatment equipment constructed in this way will be explained as follows.

First, prior to the immersion treatment process, the immersion treatment tank is selected according to the size of the centrifugal treatment case.
1. Hook the hanging piece (2) at the handle K, and from this hook, set the treatment tank on the wheels of the treatment tank transport platform located outside the drawing in FIG.

In this case, the first and second centering stoppers (c)◆ perform the centering function and stabilize it. In this way, the transport trolley-
・8 As shown in the figure, install the first treated cypress and dot it in a concentric manner at the front end of the 1 joint.To this, ':l'! The space between the front and back of the stopper (c) (to) is free, and the processing tank is moved to the first centering stopper (c) on the tank installation stand in the first place via the floating row. By carrying it in until it reaches 13, and then inserting the second centering stopper q◆ again, the setting at the desired center position is completed, and even in a large processing tank, it can always be aligned with the specified center.

Exporting will be carried out in the reverse manner.

On the other hand, for such immersion processing equipment, reversing drums (not shown) are installed perpendicularly on both sides of the rear side, and a processing driving wheel is invertedly introduced into this equipment from one side, and the centrifugal processing case 4 is moved by a ball roller ( By waiting on the drum (not shown), an appropriate amount is received, and the processed material described below is transferred to the next processing step by the other reversing drum (not shown).

For example, as shown in Fig. 12, the plate screw with a recess for a screwdriver in the head plate is placed in the centrifugal processing case to the extent shown in Fig. 11 (or more). ) is inserted and the elevating drive screw shaft (9) lowers the detachable/detachable rotating base to connect the case holder and connect the first
Obtaining the standby state as shown in the figure - 14 First, the immersion treatment step is carried out by lifting the processing case up high and performing one forward movement,
At this point, the lifting guide frame (8) comes into contact with the forward stop frame (to) K at its end, stopping the forward movement, and is clamped from both sides by the clamp V cylinder, which stabilizes the centrifugal operation, etc. In this case, the processing case m has already been aligned above the processing liquid.

Next, as shown in step 2, the lowering starts at t, and stops once at b (continuously lowering and slowing down), and then moves to the next lowering step 0.

Here, the processing case frame is immersed in the processing liquid to a certain extent, and the paint is immersed into the processed material, which has harmed itself.

In this case, by opening the stirring door (2) in advance, the processing solution is sufficiently stirred by a dedicated stirrer (not shown), but as shown in Fig. good.

In this case, in the downward stroke of O, the return stopper (to) of the opening/closing response plate IMjVc is pressed down, so that the opening/closing response plate IMjVc, which responds downward, is free to immerse, while the upward stroke of (■) causes it to rise elastically. This prevents the processing liquid from scattering to the outside from the processing case in the next first centrifugal removal step IIc.

After the immersion treatment process is completed in the above step (2), the self-harm treatment liquid is centrifugally removed by rapid rotation in the EX and Y directions.

However, according to the processing up to this step, the workpiece in the processing case handle is either a case with its concave part (■) facing the center of the case, or a threaded part and a mating threaded part (
Alternatively, the processing liquid may not be sufficiently removed by centrifugation because it is centrifugally rotated while in constant contact with the inner surface of the case.
It will end until. Therefore, the next step was to promote the removal of excess liquid.

";2":,z22:::Ill:::"L-7".

58°. .

slowly rotate it in the X direction (the direction is not particularly limited). Along with this, as shown in Figure 11, the processed material (2) always tries to fall in a lower direction and is also lifted up diagonally above Tsukuda, so its free stirring action causes its orientation and contact point to change greatly compared to before. As shown in FIG. 12, when the concave portion changes to the direction in which centrifugal action is exerted, the contact point changes. Therefore, from this, the surplus processing liquid is gradually naturally removed from the recesses etc., and is recovered through the oblique bottom m-, and becomes a processed material from which the surplus has been removed.

Next, step (2) is performed in which the processing case handle is slowly rotated and returned to the vertical position.

This aims to achieve a more sufficient removal effect, and also serves to reduce the self-injurious processing material (■), which is concentrated on one side due to tilting and rotation, to an even distribution around the perimeter that is optimal for centrifugal removal. The processed material that has been distributed during the process is returned vertically and given rapid centrifugal rotation in the Finally, completely remove it.

In this way, the steps of immersion, first centrifugal removal, removal promotion, and second centrifugal removal are followed.In such a case, 17 Another important effect is the treatment case (2) with a special structure.

That is, the inner case (total) has an inner core cylinder in the center and has a function of distributing the processed material to the outer circumference in advance. Not only that, but I also created the inner story itself using a network.

The inner case is simply a punched metal 'J)'
Compared to a book, the degree of contact with the processed material is slight, which greatly facilitates the removal of excess liquid throughout the entire process, and provides a structure that is both inexpensive and easy to install. This is the translation.

At the same time, the wind noise prevention tube (2) on the outer periphery contributes to preventing the wind noise caused by rapid rotation as described above, ensures smooth rotation without rotational resistance, and can be reinforced as a structural member.

As described above, the present invention does not end with simply lifting the immersed tortoise by immersing it in a predetermined treatment solution, and simply removing the excess treatment solution by centrifugal rotation. For example, surplus processing liquid in the recess of the processing object, which cannot be removed by this method alone, can be removed extremely efficiently and reliably.

18. In the step θ, it is also possible to rotate slowly, in which case further removal is expected. or.

The objects to be treated include all turtles with recesses, and also include large objects that are centrifugally rotated.

Furthermore, the term ``recess'' has a very broad meaning, including, for example, a circumferential groove, and the term ``processing liquid'' also covers a wide range of areas, including not only paint but also rust preventives, electrolytes, oil, etc. .

Furthermore, the above-mentioned surplus processing liquid remaining in the concave portion of the processed material (former → and/or surplus processing liquid remaining near the contact point of the processed material (latter)) is the former for those with a recessed portion. This means that the latter is the object, and the one without a recess means that only the latter is the object.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the entire equipment according to the present invention. FIG. 2 is a longitudinal sectional view of a large centrifugal processing case, FIG. 3 is a half-sectional plan view thereof, and FIG. 4 is an enlarged view of the main part of FIG. 2. Fig. 5 is an enlarged view of the windshield prevention tube, Fig. 6 is a perspective view showing the outer periphery of a conventional processing case, Fig. 7 is a side sectional view showing the A19 loading/unloading device of the processing tank, and Fig. 8 is its Plan view,
Figure 9 is a front view of the main parts of the treatment tank, Figure 10 is its plan view,
FIG. 11 is an explanatory diagram of the action, and FIG. 12 is an enlarged view showing the same action. Kan...Centrifugal processing case, -...Immersion processing tank, @--
- Processing liquid, ring...processed object, ■...concavity. 1 Net Show 58-74156 (6)

Claims (1)

[Claims] 1. An immersion treatment step in which a workpiece with or without recesses is housed in a centrifugal treatment case in a predetermined treatment solution and then rises to the outside of the treatment solution and waits; centrifugal treatment; A first centrifugal removal device removes excess processing liquid from the processed material by rotation of the vertical axis of the case; In order to prepare for the centrifugal removal of the excess processing solution, the centrifugal processing case is tilted over and returned to the above-mentioned vertical axis position while slowly rotating for 1%.
A method for treating and removing excess liquid adhering to an immersed object, comprising a second centrifugal removal step of rapidly centrifugally rotating the returned centrifugal processing case.