JPH0776798A - Work dissipation preventive mechanism of chip work transfer device - Google Patents

Abstract

PURPOSE:To provide the work dissipation preventive mechanism capable of preventing the dissipation of the chip works generated at the time of transferring the microworks, such as chip resistors, from an electroplating barrel to a drying cage. CONSTITUTION:The lower mouth part of a funnel body 2 for guiding the chip works dropping underwater from the barrel A to the drying cage B is provided with a flange 12a stuck with a gasket 12b on the rear surface. A drying cage placing section 13 is provided with a stage 13a supported by spring members 13b. The rising of the stage 13a is stopped at a prescribed level position by pawl members 21 fixed to the upper part of a water tank 2 when the drying cage placing section 13 rises from the water tank 2 and arrives at the uppermost position. As a result, the lower mouth part of the funnel body and the mouth part of the drying cage come into close and tight contact with each other in the water where the works are liable to splash and, therefore, the dissipation of the works outside the drying cage is completely prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a chip work transfer device, and more particularly, to a chip work dissipation generated when transferring a minute work such as a chip resistor from an electroplating barrel to a dry basket. The present invention relates to a chip work transfer device having a work dissipation prevention mechanism that can prevent the work.

[0002]

2. Description of the Related Art Barrel plating is used for plating minute works such as chip resistors. In this method, a large number of chip works are placed in a cylindrical container (barrel) together with ceramic balls, steel balls, etc. (dummy), and each plating process is performed for each barrel. The use of the barrel makes it very easy to handle small workpieces during plating.However, when drying after cleaning the workpieces, be sure to move the workpieces and dummy from the barrel to the basket for drying. You have to do a replacement. The barrel is made of insulating synthetic resin and cannot be exposed to high temperatures for too long.

At present, a transfer device for automatically transferring a chip work has been developed by automating a plating process. This transfer device allows the workpiece and dummy to fall freely from the barrel in water,
It is to transfer to the dry basket set below.Since wet work and dummy adhere to the inner wall of the barrel in the air and smooth transfer cannot be performed, the entire transfer work is performed underwater. .

This underwater transfer certainly improved the efficiency of the chip work transfer work. However, the following new problems have arisen in the conventional transfer device due to the adoption of this underwater transfer method.

That is, as shown in FIG. 1, a water flow C generated as a work and a dummy fall into the dry basket B underwater.
However, on the contrary, there is a scattering problem in which the chipwork is fueled and the chipwork once dropped inside the dry basket B is scattered outside the dry basket B. When the size of the tip work and the size of the dummy are about the same, the influence of this falling water flow is small. However, some ceramic dummies whose main purpose is the stirring effect in the barrel have a diameter of 1 cm,
When this agitating ceramic dummy is used for barrel plating of chip resistors (about 0.5 mm, etc.), the amount of chipwork spouted out of the dry basket due to the water flow is no longer overlookable, In order to proceed with mass production, it was necessary to urgently solve the problem of chip work dissipation.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the conventional transfer device, and a chip generated during a submerged transfer work of a chip work and a dummy. It is a technical object to provide a work dissipation prevention mechanism of a transfer device capable of preventing work dissipation.

[0007]

DISCLOSURE OF THE INVENTION The present invention is directed to a barrel shaft supporting portion for detachably supporting a barrel; and a funnel body for guiding a chip work falling from the barrel and a dummy to a drying basket installed below. A bottom part of the funnel body in a chipwork transfer device including: a drying basket mounting part for detachably mounting the drying basket; and a lifting frame for performing a lifting motion with respect to a water tank. A flange with a packing attached to the lower surface is provided on each of the dry basket placement parts, and a loading platform supported by a spring body is provided on the dry basket placement part.When the lifting frame rises from the water tank and reaches the maximum rising position,
A technical means is adopted in which the claw member fixed to the upper part of the water tank locks the mounting table to resist the urging force of the spring body and stop the rising of the mounting table at a predetermined level position.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the accompanying drawings. Note that FIG. 1 is a schematic explanatory view showing a state of work dissipation that occurs at the time of underwater transfer, and FIGS. 2 and 3 are schematic front views for explaining the configuration and operation sequence of a transfer device having a work dissipation prevention mechanism of this embodiment. It is a figure.

In the figure, what is designated by reference numeral 1 is an elevating frame of the chip work transfer device of this embodiment. In this elevating frame 1 having a substantially box shape, in order from above, a barrel shaft supporting portion 11 and 11 for detachably supporting the barrel A, and a work and a dummy that fall underwater from the supported barrel A are dried below. A funnel body 12 for guiding to the car B and a dry car mounting portion 13 for detachably mounting the dry car B are respectively provided. The elevating frame 1 is fixed at its uppermost portion to drive chains 14 and 14 that move up and down by a motor (not shown), and the elevating frame 1 is immersed in the water tank 2 by driving the drive chains 14 and 14. Is
Alternatively, it is pulled up from the water tank 2.

The above construction is no different from the conventional chip work transfer device. The work dissipation prevention mechanism of the present invention is configured as follows.

In the figure, what is indicated by reference numeral 12a is an annular flange provided at the lower opening portion of the funnel body 12, and a rubber packing 12b is attached to the lower surface of this flange 12a. Further, what is indicated by the reference numeral 13a is four spring spring bodies 13b, which are provided so as to project on the dry basket placing portion 13.
It is a mounting table supported by 13b, 13b and 13b, and the mounting table 13a is provided with a guide plate 13c for facilitating attachment and detachment of the dry basket B. In the present embodiment, the dry car B is set on the dry car mounting portion 13 via the mounting table 13a. Also, reference numeral 21
What is designated by 21 is a claw member fixed to the upper edge of the water tank 2, and these claw members 21, 21 are provided so as to lock the mounting table 13a at the edge thereof.

The work dissipation prevention mechanism of this embodiment adopts the extremely simple construction as described above, and can effectively prevent the work dissipation by skillfully utilizing the elevating motion of the elevating frame 1 described above. . The operation sequence of the workpiece dissipation prevention mechanism of this embodiment will be described with reference to FIGS.

FIG. 2 shows a state in which the elevating frame 1 is raised to the highest rising position and stopped. At this time, the claw members 21, 21 lock the mounting table 13a while compressing the spring bodies 13b, 13b, 13b, 13b. Lifting frame 1
While the mounting table 13a that has moved upward together with the claw members 21 and 21 abuts near the frame rising maximum position, the lifting is stopped, whereas the lifting frame 1 is still raised for a while. Therefore, the spring body 13b is compressed in order to continue.

In this state, the barrel A and the dry basket B are set respectively. Since the spring body 13b is compressed by the engagement of the claw members 21, 21, the distance between the mounting table 13a and the flange 12a is enlarged. Therefore, the setting of the dry basket B on the mounting table 13a can be performed very easily. Then, after the barrel A and the dry basket B are set, the elevating frame 1 starts descending to perform the underwater transfer.

Even if the immersion of the elevating frame 1 into the water tank 2 is started, the claw members 21, 21 remain on the mounting table 13a for a while.
Continue to lock. The compressed spring body 13b is used as a mounting table.
This is because it is extended while urging 13a upward.
As the spring body 13b extends, the distance between the mounting table 13a and the flange 12a becomes narrower, but the dry basket B is set on the mounting table 13a, and the mouth of the dry basket B is set. To the flange 12a via the packing 12b,
The extension of the spring body 13b stops at the point of contact and further close contact. From this time when the extension of the spring body 13b stops, the mounting table
13a is separated from the claw members 21, 21 which have been in contact with each other until now,
It descends to the water tank 2 together with the lifting frame 1.

FIG. 3 shows a state in which the elevating frame 1 is lowered to the lowest position and stopped. In this state, the barrel A rotatably supported by the barrel shaft support 11, 11 is rotated by a barrel motor (not shown) at a predetermined angle to drop the chip work and the dummy underwater. Also in the apparatus of this embodiment, the dissipated water flow is generated by the dropping of the work and the dummy. However, in the case of the apparatus of this embodiment, the dry basket B and the funnel body 12 are in close contact with each other due to the urging force of the spring body 13b, so that even if the tip work is agitated by the water flow, the shape opened upwards. It only scatters inside the funnel body 12 that makes up, and this scattered work will eventually fall along the inner wall of the funnel body 12 into the dry basket B and be settled.

After the transfer of the work and the dummy is completed, the elevating frame 1 starts to move upward. On this occasion,
Even if a water flow occurs due to the ascending / descending movement of the elevating frame 1 in the dry basket B, the dry basket B and the funnel body 12 remain in close contact with each other, so that the tip work is not scattered outside the dry basket B and scattered. .

[0018]

As described above with reference to the embodiments, in the transfer device provided with the chip work dissipation prevention mechanism of the present invention, for example, the work is caused by the water flow caused by the large-diameter dummy being dropped in water or the lifting frame being moved upward. In water that easily scatters, the bottom of the funnel and the mouth of the dry basket are in close contact with each other without any gaps, so it is possible to prevent the work from being scattered out of the dry basket. In the air where it is necessary to attach / detach and replace the car, the close contact between the lower part of the funnel body and the dry car port is automatically released, so that the dry car can be replaced easily.

Further, in the chip work dissipation prevention mechanism of the present invention, the above-mentioned close contact and separation operation between the lower opening portion of the funnel body and the dry basket opening is skillfully utilized by the lifting power of the lifting frame. It is done by. Therefore, since the device can be configured extremely simply without complicating the mechanism, the device can be provided at low cost, and its industrial utility value is extremely high.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing how a work is dissipated during an underwater transfer.

FIG. 2 is a schematic front view illustrating the configuration and operation sequence of a transfer device having a work dissipation prevention mechanism according to the present embodiment.

FIG. 3 is a schematic front view illustrating the configuration and operation sequence of a transfer device having a work dissipation prevention mechanism according to the present embodiment.

[Explanation of symbols]

 A Barrel B Dry basket 1 Lifting frame 11 Barrel shaft support 12 Funnel body 12a Flange 12b Packing 13 Dry basket placement part 13a Placement stand 13b Spring body 2 Water tank 21 Claw member

Claims (1)

[Claims] 1. A barrel shaft support portion 11 for detachably supporting a barrel A; a funnel body 12 for guiding a chip work falling from the barrel A and a dummy to a dry basket B on which a dummy is installed; and the dry basket. In a chipwork transfer device including a lifting frame 1 for lifting and lowering a water tank 2, each of which is provided with a dry basket loading part 13 for detachably mounting B, and a lower opening part of the funnel body 12. A flange 12a having a packing 12b attached to the lower surface thereof, and a spring body on the dry basket placement portion 13
The mounting bases 13a supported by 13b, 13b ... , And prevents the rising of the mounting table 13a at a predetermined level position against the biasing force of the spring bodies 13b, 13b ...