JPH06247680A - Automatic conveying device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an automatic transfer device capable of reliably performing steady rest of an object to be processed conveyed along a processing line and draining liquid adhered to the surface in a short time. [Structure] For a traveling carriage that can travel along the processing line,
In an automatic transfer device comprising an elevating crane for suspending an object to be processed, the traveling carriage is provided with a steadying means capable of pinching the object to be processed from the front and rear in the traveling direction, and a machine for shaking the object to be processed. I was able to suppress it. Further, in the immersion treatment line, the traveling carriage is provided with a liquid draining means (air nozzle) capable of ejecting an air jet on the surface of the object to be treated so that the liquid adhering to the object can be forcibly dropped. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for an automatic transfer device for suspending and transferring an object to be processed, and more particularly to an immersion processing system for transferring an object to be processed between a plurality of immersion processing liquid tanks for surface treatment. The present invention relates to a suitable automatic carrier.

[0002]

2. Description of the Related Art Generally, an immersion treatment system for forming a film on a printed circuit board, a flat plate, etc., suspends an object to be processed under a carrier bar, and the carrier bar is provided with a plurality of immersion treatment liquid tanks. Are transported by a plurality of portal transfer cranes along a processing line arranged in a straight line. That is, a series of dipping treatment processes such as loading, degreasing, washing with water, activation, washing with water, plating, washing with water, drying, and unloading are carried out by linking a plurality of carriages that are operated according to a predetermined operation program with each other. It is configured to transfer the (conveyance frame).

In this case, after the object to be treated is lifted from each liquid tank, it is held for a certain period of time to drain the liquid. Further, when moving to the immersion treatment liquid tank of the next step, in order to steady the object to be treated, it is stopped until a certain time has elapsed, and then the object to be treated is lowered.

[0004]

In the automatic transfer device in the above-mentioned conventional dipping treatment device, the object to be processed is being deflected in the conveying direction by the traveling carriage, and the object to be processed is transferred into the wall surface of the tank during the tank entry process. It sometimes caused an accident that the workpiece collided with and scratched, and sometimes the object to be processed fell from the carrier bar. In particular, there were many problems of this kind in a narrow immersion liquid bath. Problems caused by such vibrations
Although it can be avoided if the traveling carriage is stopped until the shake of the object to be processed is stopped, on the other hand, there is a problem that productivity is lowered due to increase of waste time.

Further, the treatment liquid adhering to the substance to be treated drawn out from the liquid tank has been dropped during the transportation, causing a load on the sewage treatment facility. In this case as well, the problem can be avoided by stopping the processing liquid adhering to the object to be processed until it is completely drained, but there is also a problem that productivity is reduced due to an increase in waste time.

In view of the above points, it is a first object of the present invention to provide an automatic transfer device capable of reliably steadying an object to be processed in a short time. A second object of the present invention is to provide an automatic transfer device capable of surely draining the object to be processed in a short time.

[0007]

In order to achieve the above object, a first invention is an automatic transfer device comprising a traveling carriage capable of traveling along a processing line and an elevating crane for suspending an object to be processed. In the above, the traveling carriage is provided with a steadying means capable of pinching the object to be processed from the front and rear in the traveling direction so that the object can be mechanically suppressed from vibrating.

A second aspect of the present invention is an automatic transfer apparatus comprising a traveling carriage that can travel along a processing line and an elevating crane for suspending an object to be treated. A liquid draining means (air nozzle) capable of jetting an air jet is provided on the surface of the device so that the liquid adhering to the object to be processed can be forcibly dropped.

[0009]

The object to be processed suspended by the lifting crane is conveyed along the processing line by the traveling carriage. Then, in each of the immersion treatment liquid tanks, it is conveyed to the next immersion treatment liquid tank through the steps of descending → immersion treatment → rising → draining. At this time, the object to be processed vibrates in the traveling direction due to the acceleration caused by the start and stop of the traveling vehicle, but the steady rest mounted on the traveling vehicle sandwiches the object to be processed from the front and rear in the traveling direction. Runout is prevented by stopping, pulling up, or activating while pressing.

Further, since the treatment liquid adheres to the surface of the object to be treated that has been pulled up from the dipping treatment liquid tank, the liquid will drip from the lower end of the object to be treated for a while after the treatment liquid is pulled up. . In the apparatus of the present application, when the object to be processed is pulled up from the immersion processing liquid tank, the liquid jetting means (air nozzle) ejects an air jet onto the surface of the object to be forcibly added to the liquid, so that the liquid can be reliably removed in a short time. Is done.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the accompanying drawings. 1 is a front view of the automatic transfer apparatus of the present application, FIG. 2 is a side view thereof, FIG. 3 is an enlarged front view of a steadying means and a liquid draining means, and FIG. 4 is an engaging portion of a basket of a lifting crane and a transfer frame. It is a perspective view.

In the figure, reference numeral 1 is an automatic transfer device 100 of the present application.
In the traveling carriage 1, the traveling carriage 1 has a traveling track 20 laid parallel to the processing line 100 above a processing line 200 in which a plurality of immersion treatment liquid tanks E, E ... Are linearly arranged. It is configured to run along. That is,
The traveling carriage 1 is mounted on the lower side of the base 11a.
By driving the individual traveling wheels 2 by a traveling motor (not shown), the traveling wheels 2 can travel on the traveling track 20 and move above the desired immersion treatment liquid tank E.

The traveling carriage 1 is equipped with an elevator crane 10 including a motor 3, a gear box 4, a wire drum 5 and a basket 6. The motor 3 is installed on the base 11a of the traveling carriage 1, and the wire drums 5 and 5 are rotated by chain drive via the gear box 4, and the wire wound around the wire drums 5 and 5 is rotated. By winding (or lowering) (not shown),
The basket 6 suspended from the wire can be raised and lowered. Reference numeral 11b denotes a pedestal fixedly mounted on the base 11a, the wire drums 5 and 5 are fixedly fixed to an upper portion of the pedestal 11b, and the basket 6 is suspended below the pedestal 11b.

As shown in FIG. 4, the basket 6 has an oval base plate 6a and two rib plates 6 provided upright on the base plate 6a.
b, 6b, a pipe 6c horizontally supported by the rib plates 6b, 6b, and conical holes 6d, 6d provided at both ends of the pipe 6c. The base plate 6a is provided with dovetail grooves 8a, 8a of a guide rail 8 fixed vertically downward from the base 11a via two ridges T, T projectingly provided on the opposite side of the rib plate 6b. And is configured to be vertically movable in response to the rotation of the wire drums 5, 5. The guide rail 8 is fixed to the front portion (on the side of the elevating crane 10) of a post 40 described later.

Upward conical holes 6d, 6d provided at both ends of the pipe 6c are constructed so that they can be engaged with downward conical pins 7a provided at both ends of a carrier bar (conveyance frame) 7. Through the hole 6d and the conical pin 7a, an object to be processed H (for example, a long aluminum sash, a panel, etc.)
Is configured to be suspended from the lifting crane 10. Reference numeral 9 denotes a mounting plate for fixing the object H to be processed to the carrier bar 7, and a plurality of objects H to be processed can be suspended on the mounting plate 9.

Reference numerals 7b and 7b denote power feeding portions projecting from both ends of the carrier bar 7. Electrolytic treatment is performed on the workpiece H immersed in the liquid tank E through the power feeding portions 7b and 7b. It is possible to supply the necessary current for such purposes. 30, 40
Is a column, the column 30 is arranged in front of the lifting crane 10, and the column 40 is arranged behind the lifting crane 10. The columns 30 and 40 are hung from the base 11a and have such a length as to reach the lower end of the object H to be processed in a state of being pulled up from the liquid tank E, and the lower end portion thereof faces the object H to be processed. Air cylinder 5 that can move forward and backward
It has 0 and 50 respectively.

The air cylinder 50 (precession preventing means) is
It is used to prevent steady movement of the object to be processed H.
A plurality (three in this embodiment) are provided in the width direction of
A nipping roller 51 is provided at the tip of each cylinder rod. The air cylinders 50, 50 are in a short stroke state when the hoisting crane 10 descends, and retract the pinching rollers 51, 51 from the passage area of the workpiece H, but when the hoisting crane 10 rises, the air cylinders 50, 50 are long strokes. In the stroke state, the both sides of the article to be processed H (the front-back direction of the conveying line) are squeezed by the squeezing rollers 51, 51 so that the article H to be processed can be prevented from swinging. Here, the pinching rollers 51, 51 are rotatably supported while being in contact with the surface of the object to be processed H so as not to damage the surface of the object to be processed H, and are themselves corroded. It is made of corrosion-resistant plastic so that it won't get scratched.

Reference numeral 52 is an air nozzle (liquid draining means), which is fixed to the tip of the air cylinder 50 so as to be able to move forward and backward integrally with the pinching roller 51. When the object to be processed H rises (that is, when the object to be processed H is pulled up from the immersion processing liquid tank E), an air jet is jetted onto the surface of the object to be processed H so that the adhered liquid can be forcibly dropped. . The compressed air is supplied to the air nozzle 52 by an air compressor 60 mounted on the base 11a. 70 is a power supply cord.

In the above embodiment, the object to be processed H is the carrier bar 7 engaged with the basket 6 of the lifting crane 10.
It is suspended by the traveling carriage 1 and is transported along the processing line 200. That is, the workpiece H is lifted through the basket 6 by winding up the wire by the wire drum 5 driven by the motor 3 and the gearbox 4, and is conveyed right above the desired liquid tank E and stopped. At this time,
An inertial action acts on the object to be processed H in the traveling direction, but the lower end of the object to be processed H is pinched by the pinching rollers 51, 51 at the tip of the air cylinder 50 (long stroke state). It does not start vibrating.

Next, when the basket 6 starts descending,
The air cylinder 50 is in a short stroke state, and the pinching rollers 51, 51 are separated from and retracted from the object H to be processed. Then, the object to be processed H immersed in the liquid tank E is energized by the power supply unit 7b as necessary, and is subjected to a processing action such as electrolytic processing. When the immersion process is completed, the workpiece H is lifted from the liquid tank E by the elevating crane 10. At this time, even if a disturbance (fluid flow in the liquid tank E, vibration of the mechanical system transmitted from the lifting crane 10, etc.) acts on the rising workpiece H, the air cylinder 50 is in a long stroke state, Since the pressure rollers 51, 51 pull up the workpiece H while pinching the workpiece H, the workpiece H does not shake during and after the pulling.

Further, although liquid is attached to the surface of the object H to be processed, the air cylinder 50 is in a long stroke state, and the air jet flow from the air nozzle 52 to the entire surface of the object H to be processed during lifting. Since the liquid is being jetted, the liquid is forcibly dropped and the liquid is quickly drained. After the pulling up and the drainage are completed, the object to be treated H is transported to the next liquid tank E and subjected to the immersion process of the next step through the same procedure as described above.

[0022]

As described above, the first aspect of the present invention is an automatic carrier comprising a traveling carriage capable of traveling along a processing line, and an elevating crane for suspending an object to be processed. Since the steadying means capable of pinching the object to be processed from the front and rear in the traveling direction is provided, it is possible to mechanically suppress the object to be shaken and reliably perform the steadying in a short time.

A second aspect of the present invention is an automatic transfer apparatus comprising a traveling carriage that can travel along a processing line and an elevating crane for suspending the workpiece, wherein the traveling carriage has the workpiece. Since a liquid draining means (air nozzle) capable of jetting an air jet is provided on the surface of, the liquid adhering to the object to be processed can be forcibly dropped to surely perform liquid draining in a short time.

As a result, the automatic transfer device equipped with a simple means can prevent various troubles due to the shaking of the object to be processed, and the time and equipment cost required for draining the liquid can be omitted. It has the excellent effects of improving productivity and reducing costs.

[Brief description of drawings]

FIG. 1 is a front view of an automatic transport device of the present application.

FIG. 2 is a side view of the automatic transport device of the present application.

FIG. 3 is an enlarged view showing a pinching part and a liquid draining means of an object to be processed.

FIG. 4 is a perspective view showing a relationship between a basket and a carrier bar of the lifting crane.

[Explanation of symbols]

 1 Traveling Vehicle 2 Traveling Wheel 3 Motor 4 Gear Box 5 Wire Drum 6 Basket 7 Carrier Bar (Conveying Frame) 8 Guide Rail 9 Mounting Plate 10 Elevating Crane 11a Base 20 Travel Track 30, 40 Struts 50 Air Cylinder 51 Clamping Roller ( Steady stop means) 52 Air nozzle (liquid draining means) 60 Air compressor 70 Power supply cord 100 Automatic transfer device 200 Immersion treatment line

Claims (2)

[Claims] 1. An automatic transfer apparatus comprising a traveling carriage capable of traveling along a processing line and an elevating crane for suspending an object to be treated, wherein the traveling carriage is provided with the object to be treated from front and rear in a traveling direction. An automatic carrying device, which is provided with a steady rest capable of holding a pressure. 2. The automatic transfer device, wherein the treatment line is an immersion treatment line, and the traveling carriage is provided with a liquid draining means capable of ejecting an air jet on the surface of the object to be treated.