JP2538199Y2 - Surface treatment equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an apparatus for performing processing such as washing, coloring, and rust prevention on the surface of small parts.
The present invention relates to a surface treatment apparatus of a type for performing a desired surface treatment by spraying a treatment liquid into the container.

[0002]

2. Description of the Related Art A conventional surface treatment apparatus for cleaning, coloring, and rust-proofing the surface of a component by putting a large number of small components into a basket, immerses the basket containing the component in a container filled with a processing solution. By moving or tilting the basket up, down, left and right in the processing solution, the components in the basket are moved, and the processing solution in the tank is caused to flow. The treatment is performed so as to make uniform contact.

In this case, when the processing is performed by a plurality of steps, for example, steps such as washing, coloring and drying, a plurality of processing tanks are provided, and the basket 6 is sequentially moved to the plurality of processing tanks to perform a series of processing. Like that.

[0004]

In the surface treatment apparatus having the above structure, the treatment tank must be filled with a sufficient amount of treatment liquid to immerse the basket containing the parts in the treatment tank. Is also disadvantageous in that a large amount of processing solution must be prepared. Generally, surface treatment of parts is performed by storing a large number of parts in several baskets and successively immersing the baskets in a processing tank filled with a processing solution. As the processing liquid is gradually diluted or contaminated, the quality of the parts processed later is deteriorated due to the deterioration of the processing liquid.

[0005] Also, when processing the last basket, a sufficient amount of processing solution must remain in each processing tank to immerse the basket, so that a large amount of processing solution remains.
Disposal of a large amount of the deteriorated processing solution causes a problem of environmental pollution, and a problem that regeneration and purification processing of the processing solution requires a large amount of equipment and cost.

On the other hand, a surface treatment apparatus for performing a surface treatment of parts by using a treatment liquid sprayed from a nozzle has been conventionally known. However, this kind of conventional apparatus has a problem that the uniformity of treatment when a large number of parts are collectively processed. It is not guaranteed, and there is a problem that an unprocessed portion occurs due to overlapping of parts.

[0007] This invention is a spray type surface treatment apparatus capable of treating a large number of small parts housed in a basket with a small amount of processing liquid, and may cause processing unevenness due to overlapping of parts. It is another object of the present invention to provide an apparatus for cleaning a surface of a component that can dry a component after the treatment in the same container.

[0008]

The surface treatment apparatus of the present invention has a closed container 18 provided with a lid 17.
A holding frame 39 provided with a fixing means 45 for fixing the basket 6 into which the work has been loaded is fixedly provided at the upper end of a support shaft 38 which penetrates the bottom of the container 18 slidably and rotatably. The container 18 is provided with a tilting means 23 capable of tilting around the pivot shaft 19 and tilting the same, and the lid 17 is provided with a treatment liquid. A spray nozzle 29 and a dry air blow duct 30 are provided. A drain port 35 for the processing liquid is provided at the bottom of the container 18, and an air discharge duct 64 is provided at the top.
Is provided.

[0009]

The surface treatment operation of a part using the above-mentioned apparatus is performed as follows. Lid 1 with container 18 upright
7 is opened, the basket 6 containing the components is lowered into the container, and the basket 6 is fixed to the holding frame 39 by the fixing device 45. And lid 1
The processing liquid is sprayed from the nozzle 29 while the support shaft 38 is rotated while the container 18 is tilted and the support shaft 38 is rotated while the container 18 is tilted, and is reciprocated in a short cycle and at a high frequency in the axial direction. The sprayed processing liquid settles down as fine droplets in the container 18, and the components housed in the cage 6 that rotates in an inclined state and reciprocates finely in the vertical direction are separated from each other. It moves while reversing while repeating, and the entire surface is uniformly wetted by the settling liquid droplets of the processing liquid.

When the processing for a desired time is completed, the supply of the processing liquid is stopped, hot air is blown from the drying air supply duct 30, and the processed parts are dried while similarly rotating the basket and reciprocating up and down. I do. At this time, since the reversal movement of the component in the basket 6 is continuously performed, the surface of the component is uniformly and quickly dried. After the drying process for a predetermined time is completed, the supply of hot air is stopped, and the container 18 is returned to the vertical state. Then, the lid 17 is opened, and the cage 6 is unlocked.
Take out upwards.

The removed basket 6 is placed on a reversing table 65 or the like to be inverted, and the processed parts are discharged from the basket 6. The supply of new parts into the basket 6 is performed by the reversing table 6 returned to the established state.
The basket 6 may be placed on the fixed tray 7 of the parts supply station or the parts supply station. This part supply / discharge step is performed by storing the parts housed in other baskets in the container 18. You can go in parallel while doing.

[0012]

FIG. 2 is a diagram showing an example of a processing line provided with the surface treatment apparatus 1 of the present invention. Reference numeral 2 denotes a material supply station, 3 denotes a parts discharge station, 4 denotes a processing station, and 5 denotes a basket transport apparatus. . 6 is a basket for storing parts.
Components are loaded while being placed on the fixed base 7 of the component supply station 2. The basket in which the components are put is suspended by the claws 8 of the basket transport device and transported onto the processing station 4. The claw 8 is provided with a pin 1
0, three of which are swingably movable in the radial direction, and the tip of the rod 12 of the drive cylinder 11 provided in the vertical direction and the intermediate portion of each claw 8 are connected by a link 13 which performs a toggle action. The hook 8 is simultaneously moved in the radial direction by the vertical movement of the drive cylinder 11, and the hanging ring 14 provided on the upper part of the basket 6 is hooked.

The processing station 4 is provided with a closed container 18 having a lid 17 which is opened and closed by a cylinder 16 (see FIG. 4). The container 18 has a horizontal pivot provided substantially at the center thereof. The shaft 19 is supported by bearings 20 and 20 so as to be tiltable in the front-rear direction of FIG. 3, and as shown in FIG. 3, the tip of a lever 21 fixed to the pivot shaft 19 and the base 2.
2 and is tilted and driven by a cylinder 23 interposed therebetween.

As shown in FIG. 3, the lid 17 of the container 1
The cylinder 16 mounted between a tip of an arm 26 extending from a bracket 25 fixed to the upper surface of the lid 17 and pivotally supported by a hinge pin 24 provided on an upper edge of the container 8 and a bracket 27 at a lower end of the container 18 Is opened and closed by A spray nozzle 29 connected to a processing liquid supply pipe 28 and a dry air supply duct 30 are attached to the lid 17. This dry air supply duct 30 has one end fixed to the lid 17,
A connecting duct 31 having the other end fixed to the container 18;
With the opening and closing of, they are detached and fitted at the position of FIG. The connection duct 31 is connected to the flexible duct 32 substantially on the extension of the pivot 19, and is connected to a discharge port of a blower (not shown).

FIG. 1 is a view showing a section A of the container 18.
The bottom surface 33 of the container 18 is inclined toward the near side in FIG. 3, and a drain port 35 provided with an on-off valve 34 is provided at the tip thereof.

The container 18 is fixed to a lower mechanism frame 36, and a support shaft 38 is supported by a vertical bearing block 37 fixed to the mechanism frame 36 so as to be movable in the axial direction and rotatable. The holding frame 39 of the basket 6 is fixed to the tip of the 38. A shielding cup 40 is provided at a connection portion between the support shaft 38 and the holding frame 39, and the bearing block 37 projects above the bottom surface 33 of the container 18, and the shielding cup 40 is provided so as to cover the projecting portion.
The intrusion of the processing liquid into the support portion of the support shaft 38 is prevented. The holding frame 39 includes a ring 42 and a radially located arm 43.
, A cage holder 45 is provided at three positions equally dividing the circumference of the upper end thereof, and the cage holder 45 is advanced and retracted radially inward by the cylinder 44. After the basket 6 is stored in the holding frame 39, the basket holder 45 advances and presses the shoulder of the basket 6 to fix the basket 6 in the holding frame 39.

A step portion 47 is provided at an intermediate portion of the support shaft 38 below the bearing block 37, and the support shaft 38 is provided at this step portion.
Is in contact with the sleeve 48. Sleeve 48
Is provided with a circumferential groove 49 on the outer periphery thereof. A roller 51 provided at an eccentric position of a shaft 50 that extends and supports the bearing block 37 downward is fitted in the groove 49. It is rotationally driven by a vertical drive motor 55 via a belt 52, a belt 53 and a pulley 54. The support shaft 38
A pulley 56 is fixed to a lower end of the pulley, and the pulley is rotationally driven by a rotary drive motor 57 to rotate the support shaft 38.

A hollow hole 59 penetrates the support shaft 38 and branches off in a radial direction at an inner portion of the shielding cup 40. A pipe 60 communicates with the branch portion, and driving air is supplied to the cylinder 44 for fixing the basket.

The basket 6 transported from the parts supply station shown in FIG. 1 is inserted into a container 18 in which the lid 17 is opened in an upright state, and is fixed by a cage holder 45. Then, the lid 17 is closed and the cylinder 23 is closed. Extend to tilt the container 18. Next, the vertical drive motor 55 and the rotary drive motor 57 rotate to finely reciprocate the cage 6 fixed to the support shaft 38, that is, the holding frame 39 in the vertical direction, and slowly rotate the cage. In this state, the processing liquid is sprayed from the spray nozzle 29 into the container 18 by a predetermined amount.
From 0, hot air is supplied into the container 18. This hot air is exhausted from an exhaust hole 64 provided above the container 18. When the hot air is supplied for a predetermined time, the supply of the hot air is stopped, the rotation of the basket 6 and the vertical drive are stopped, the container 18 is returned to the upright state, and the lid 1 is returned.
Open 7. Next, the claw 8 of the basket transport device is inserted into the container 18, the cage holder 45 is opened, and the basket 6 containing the processed parts is lifted upward.

The basket in which the processed components are stored is placed on the reversing table 65 of the component discharging station 3. The reversing table 65 is pivotally supported by a horizontal shaft 66 so as to be vertically reversible. A reversing motor 70 is connected to the horizontal shaft 66 via a sprocket 67, a chain 68, and a sprocket 69.
The basket 6 placed on the reversing table 65 is pressed by a pressing piece 73 provided at the tip of an arm 72 that is oscillated by a cylinder 71, and is reversed by driving a reversing motor 70. The finished component falls, is guided by the chute 74 and is put into the product receiver 75. Then turn table 6
The basket 5 is returned to the upright position, and the basket 6 is transferred to the component supply station 2 by the basket transfer device 5.

[0021]

According to the device of the invention described above,
A large number of components inserted into the basket move while rolling due to the rotation of the basket in the container 18, and the reciprocating vibration of the basket in the vertical direction causes repeated contact and separation of the components, and is sprayed from the spray nozzle. The surface of all parts is uniformly exposed to the droplets of the processing liquid, which has the effect that uniform surface processing can be performed efficiently in a single time, and the spray type with a small residual amount of the processing liquid Therefore, there is an effect that the amount of the processing liquid can be reduced and the problem of disposal of a large amount of the remaining processing liquid does not occur.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the internal structure of the surface treatment apparatus of the present invention.

FIG. 2 is an enlarged view showing an axial reciprocating means for moving a support shaft.

FIG. 3 is a front view of a surface treatment line including the surface treatment apparatus of the present invention.

FIG. 4 is a right side view of the surface treatment apparatus in an inclined state.

FIG. 5 is a partial side view showing a connection structure of an air duct.

[Explanation of symbols]

 6 Basket 17 Lid 18 Container 19 Pivot shaft 23 Cylinder 29 Spray nozzle 30 Dry air supply duct 35 Drain port 38 Support shaft 39 Holding frame 45 Basket holder 55 Vertical drive motor 57 Rotational movement motor 64 Exhaust hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A closed frame (18) provided with a lid (17), and a holding frame provided with fixing means (45) for fixing a basket (6) into which a work is loaded, in the container (18). (39) is fixedly provided at the upper end of a support shaft (38) that slidably and rotatably penetrates the bottom of the container (18), reciprocating rotation means (57) of the support shaft (38), and a support shaft ( 38)
Axial reciprocating means (55), and the container (18)
(19) Tilt means (2) capable of tilting around and tilting it
3), a lid (17) is provided with a spray nozzle (29) for processing liquid and a ventilation duct (30) for dry air, and a drain port (35) for processing liquid is provided at the bottom of the container (18). ) Is provided, and an air discharge duct (64) is provided on an upper part thereof.