JPH059672U - Surface treatment equipment - Google Patents

Abstract

(57) [Summary] [Purpose] This is a device for cleaning, coloring, and rust-proofing the surfaces of small parts, which is a spray type surface treatment that can surface-treat many small parts housed in a basket with a small amount of processing liquid. An object of the present invention is to obtain an apparatus that does not cause unevenness in processing and that can dry components after processing in the same container. [Structure] A holding frame 39 having a fixing means 45 for fixing a basket 6 into which a work is put is provided in a container 18.
The holding frame 39 penetrates the bottom of the container 18 and
It is fixed to the upper end of the support shaft 38 extending inward and is driven by the reciprocating rotating means 57 and the axial reciprocating moving means 55. Container 1
8 is tiltable about a pivot shaft 19, and a lid 17 of the container 18
Is provided with a spray nozzle 29 for the treatment liquid and a blower duct 30 for the dry air, a drain port 35 for the treatment liquid is provided at the bottom of the container 18, and an air discharge duct 64 is provided at the top. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an apparatus for cleaning, coloring, and rust-proofing the surfaces of small parts.A large number of works are placed in a basket in a container, and the processing liquid is sprayed into the container. The present invention relates to a surface treatment apparatus of a type which performs desired surface treatment by means of

[0002]

[Prior Art]

 A conventional surface treatment device that puts a number of small parts into a basket to clean, color, and rust-proof the surface of the parts is a conventional surface treatment device in which the basket containing the parts is immersed in a container filled with the treatment liquid to By moving or tilting the basket up, down, left or right, the components in the basket can be moved and the treatment liquid in the tank can be made to flow, so that the treatment liquid can evenly contact the surfaces of many components with complicated surface shapes. The processing is performed as described above.

In this case, when the treatment is performed by a plurality of steps, such as washing, coloring and drying, a plurality of treatment tanks are provided, and the basket 6 is sequentially moved to the plurality of treatment tanks to perform a series of treatments. I am trying to make it.

[0004]

[Problems to be solved by the device]

 With the surface treatment equipment with the above structure, it is necessary to fill the treatment tank with a sufficient amount of treatment liquid to immerse the basket containing the components, so even when treating a small amount of components, a large amount of treatment liquid is required. It has the disadvantage of having to prepare a liquid. Generally, the surface treatment of parts is performed by accommodating a large number of parts in a number of baskets and successively immersing the baskets successively in a treatment tank filled with treatment liquid. As the processing solution continues, the processing solution is gradually diluted or contaminated, and the quality of the later processed parts deteriorates due to deterioration of the processing solution.

Also, when the last basket is treated, a sufficient amount of the treatment liquid must be left in each treatment tank for dipping the basket, so that a large amount of treatment liquid remains, resulting in deterioration of a large amount. There is a problem of environmental pollution due to the disposal of the treatment liquid, and a large amount of equipment and cost are required for the regeneration and purification treatment of the treatment liquid.

On the other hand, a surface treatment apparatus that performs a surface treatment of a component with a treatment liquid sprayed from a nozzle has been conventionally known. However, a conventional apparatus of this type has a uniform treatment when a large number of components are collectively treated. It was not guaranteed, and there was a problem that unprocessed parts were generated due to the mutual overlap of parts.

The present invention is a spray-type surface treatment device capable of surface-treating a large number of small components housed in a basket with a small amount of treatment liquid, and treatment mura caused by overlapping of components is generated. It is an object of the present invention to provide a surface cleaning apparatus for parts, which can dry the processed parts in the same container.

[0008]

[Means for Solving the Problems]

 The surface treatment apparatus of the present invention has an airtight container 18 having a lid 17, and a holding frame 39 having a fixing means 45 for fixing the basket 6 in which a work is put is provided at the bottom of the container 18. The container 18 is fixedly provided on the upper end of a support shaft 38 that penetrates slidably and rotatably, and includes a reciprocating rotation unit 57 of the support shaft 38 and an axial reciprocating moving unit 55 of the support shaft 38. 19 is provided with a tilting means 23 that is tiltable around 19 and tilts, the lid 17 is provided with a spray nozzle 29 for the treatment liquid and a blower duct 30 for the dry air, and the bottom of the container 18 is provided with a treatment liquid for the treatment liquid. A drain port 35 is provided, and an air exhaust duct 64 is provided on the upper part.

[0009]

[Action]

 The surface treatment operation of the component using the above apparatus is performed as follows. The lid 17 is opened with the container 18 kept vertical, 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. Then, the lid 17 is closed to close the container 18, and the support shaft 38 is rotated with the container 18 tilted, and the treatment liquid is ejected from the nozzle 29 while reciprocating in the axial direction at a short cycle and at a high frequency. Spray. The sprayed treatment liquid is settled in the container 18 as fine droplets, settles down, rotates in an inclined state, and finely reciprocates in the vertical direction. By repeating the separation contact, the particles move while reversing, and the entire surface is uniformly wetted by the settling liquid droplets of the processing liquid.

When the processing for the desired time is completed, the supply of the processing liquid is stopped, hot air is blown from the dry air supply duct 30, and similarly the rotation of the basket and the reciprocating vertical movement are continued while the processed parts are processed. To dry. At this time as well, the reversing movement of the component in the basket 6 is continuously performed, so that the surface of the component is uniformly and quickly dried. After the drying process for a predetermined time is finished, the supply of hot air is stopped, the container 18 is returned to the vertical state, the lid 17 is opened, the cage 6 is unfixed, and the container 6 is taken out upward.

The basket 6 taken out is placed on a reversing table 65 or the like to be reversed, and the processed parts are discharged from the basket 6. The supply of new parts into the cage 6 may be performed on the reversing table 65 that has been returned to the established state or by placing the cage 6 on the fixed table 7 of the parts supply station. The supplying / discharging process can be performed in parallel while the components stored in the other baskets are stored in the container 18 and processed.

[0012]

【Example】

 FIG. 2 is a view showing an example of a processing line provided with the surface processing apparatus 1 of the present invention, 2 is a material supply station, 3 is a parts discharge station, 4 is a processing station, and 5 is a basket transfer apparatus. Reference numeral 6 designates a basket for accommodating the parts, and the parts are loaded in a state of being placed on the fixed base 7 of the parts supply station 2. The basket into which the parts have been placed is suspended by the claws 8 of the basket transfer device and carried to the processing station 4. Three claws 8 are mounted on a vertically moving frame 9 of the basket carrier so as to be swingable in a radial direction by pins 10. The tip of a rod 12 of a drive cylinder 11 provided in the vertical direction and an intermediate portion of each claw 8 are provided. By linking and with a link 13 having a toggle action, the pawl 8 is simultaneously advanced and retracted in the radial direction by the vertical movement of the drive cylinder 11, and the suspension ring 14 provided on the upper portion of the basket 6 is hooked.

The processing station 4 is provided with an airtight container 18 having a lid 17 which is opened and closed (see FIG. 4) by a cylinder 16, and the container 18 is provided with a horizontal pivot in a substantially central portion thereof. As shown in FIG. 3, the support shaft 19 is supported by bearings 20 and 20 so as to be tiltable in the front-rear direction, and, as shown in FIG. 3, the tip end of a lever 21 fixed to the support shaft 19 and the base 22. It has a structure in which it is tiltably driven by a cylinder 23 interposed in the.

The lid 17 of the container is pivotally supported by a hinge pin 24 provided on the upper edge of the container 18 as shown in FIG. 3, and the tip of an arm 26 extending from a bracket 25 fixed to the upper surface of the lid 17 and the container It is opened and closed by a cylinder 16 mounted between the lower end of 18 and a bracket 27. 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. The dry air supply duct 30 has one end fixed to the lid 17 and the other end fixed to the connecting duct 31 fixed to the container 18, and is fitted and removed at the position a in FIG. It is like this. The connecting duct 31 is connected to the flexible duct 32 substantially on the extension of the pivot shaft 19, and is connected to the 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 front side in FIG. 3, and a drain port 35 provided with an opening / closing valve 34 at its tip has a drain port 35. It is provided.

The container 18 is fixed to a mechanism frame 36 below the container 18, and a support shaft 38 is supported by a vertical bearing block 37 fixed to the mechanism frame 36 so as to move and rotate in the axial direction. A holding frame 39 of the basket 6 is fixed to the tip of the shaft 38. A shield cup 40 is provided at the connecting portion between the support shaft 38 and the holding frame 39, and a bearing block 37 projects above the bottom surface 33 of the container 18, and the shield cup 40 is provided so as to cover the projecting portion. This prevents the processing liquid from entering the support portion of the support shaft 38. The holding frame 39 is formed into a cylindrical frame shape by the ring 42 and the radially positioned arms 43, and the cage 44 that moves forward and backward inward in the radial direction by the cylinders 44 at three positions equally dividing the circumference of the upper end thereof. Is provided. After the cage 6 is stored in the holding frame 39, the cage presser 45 advances to press the shoulder portion of the cage 6 and fix the cage 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 a sleeve 48 inserted through the support shaft 38 is in contact with the step portion 47. A circumferential groove 49 is provided on the outer periphery of the sleeve 48, and a roller 51 provided at an eccentric position of a shaft 50 which extends the bearing block 37 downward and is axially supported is fitted in the groove 49. Reference numeral 50 is rotationally driven by a vertical drive motor 55 via a pulley 52, a belt 53 and a pulley 54. A pulley 56 is fixed to the lower end of the support shaft 38, and this pulley is rotationally driven by a rotary drive motor 57 to rotate the support shaft 38.

A hollow hole 59 penetrates through the support shaft 38 and branches radially in the inner portion of the shielding cup 40. A pipe 60 communicates with this branching portion, and drive air is supplied to a cage 44 for fixing the cage.

The basket 6 carried from the parts supply station shown in FIG. 1 is inserted into a container 18 with the lid 17 opened in an upright state, fixed by a basket presser 45, then the lid 17 is closed, and the cylinder 23 extends and tilts 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 it. In this state, the treatment liquid is sprayed from the spray nozzle 29 into the container 18 by a predetermined amount, and then hot air is supplied into the container 18 from the dry air supply duct 30. This hot air is exhausted from an exhaust hole 64 provided above the container 18. After supplying the hot air 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 17 is opened. Next, the claw 8 of the basket transfer device is inserted into the container 18, the basket presser 45 is opened, and the basket 6 containing the processed parts is lifted up.

The basket containing the processed components 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, and a reversing motor 70 is connected to the horizontal shaft 66 via a sprocket 67, a chain 68, and a sprocket 69. The cage 6 placed on the reversing table 65 is pressed by a pressing piece 73 provided at the tip of an arm 72 which is rockingly driven by a cylinder 71, and is reversed by driving a reversing motor 70. The used parts fall, are guided by the shoot 74, and are put into the product receiver 75. Next, the reversing table 65 returns to the upright position, and the cage 6 is transported to the component supply station 2 by the cage transport device 5.

[0021]

[Effect of the device]

 According to the device of the present invention described above, a large number of parts inserted in the basket move while rolling by the rotation of the basket in the container 18, and the reciprocating vibrations of the basket in the vertical direction cause mutual mutual movement of the parts. The surface of all parts is uniformly exposed to the droplets of the processing liquid sprayed from the spray nozzle, and the uniform surface treatment can be performed efficiently in a single time. In addition, since the spraying type processing apparatus has a small residual amount of the processing liquid, the amount of the processing liquid can be small, and there is no problem of discarding a large amount of the residual processing liquid.

[Brief description of drawings]

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

FIG. 2 is an enlarged view showing a means for axially reciprocating 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 device in an inclined state.

FIG. 5 is a partial side view showing the connection structure of the air ducts.

[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 retainer 55 Vertical drive motor 57 Rotation movement motor 64 Exhaust hole

Claims (1)

[Claims for utility model registration] [Claim 1] A fixing means for fixing a basket (6) into which a work is put, which has a closed container (18) equipped with a lid (17). A holding frame (39) provided with (45) is fixedly provided on the upper end of a support shaft (38) that penetrates the bottom of the container (18) in a slidable and rotatable manner, and a reciprocating rotation means of the support shaft (38). (57) and support shaft (38)
And an axial reciprocating means (55) for the container (18)
(19) Tilting means that can tilt around and tilts it (2
3), a lid (17) is provided with a spray nozzle (29) for the treatment liquid and a blower duct (30) for the dry air, and a drain port (35) for the treatment liquid is provided at the bottom of the container (18). ) Is provided, and an air discharge duct (64) is provided on the top thereof.