JP3853093B2 - Automatic cleaning device transport mechanism - Google Patents

Description

[0001]
[Industrial application fields]
The present invention particularly relates to a transport mechanism of an automatic cleaning apparatus that cleans a plate-like object such as a printed circuit board.
[0002]
One of the transport mechanisms of an automatic cleaning apparatus that cleans a printed circuit board or the like is a hook and place transport mechanism. As shown in FIGS. 5 and 6, the hook-and-place transfer mechanism has a number of hooks that is one more than the number of cleaning tanks above the cleaning tank constituting the cleaning processing step unit , and a vertical movement of the hooks. Consists of a transport carriage unit loaded with a drive unit that performs lateral movement. Each hook performs the operations 1 to 8 shown in FIGS. 7 and 8 to sequentially transport the cleaning jig from the previous process to the subsequent process. This is a transport mechanism.
[0003]
The cleaning tact time by the hook-and-place type transport mechanism is, for example, a printed circuit board having a vertical dimension of about 300 mm when transporting an object to be cleaned, due to the relationship between the components of the cleaning tank and other devices. The moving distance between the tanks of the objects (moving distance of the hook) is about 1400 mm, and the time required for conveyance is 33 seconds.
[0004]
In addition, as shown in the time chart of FIG. 8, when the required cleaning time is 15 seconds, the cleaning tact time required for the cleaning operation is excluded from the total of the transport time and the cleaning time, which is 5 seconds of the overlapping time of both. When the necessary cleaning time is short as in this example, there is a disadvantage that the conveyance time not used for cleaning exceeds the cleaning time.
[0005]
As described above, in the hook-and-place type transport mechanism, there is only a method of shortening the transport time, that is, increasing the transport speed in order to secure a certain cleaning time and shorten the cleaning tact time. There is a problem that the cleaning jig that puts the object in motion is unstable during transportation, and there is a problem that the equipment becomes unstable due to large vibrations caused by shocks when the transportation operation starts and stops, which naturally limits the shortening of the transportation time. was there.
[0006]
[Problems to be solved by the invention]
The present invention was devised to solve the above-mentioned drawbacks of the prior art, and by combining the hook-and-place type transport mechanism and the elevator mechanism, a certain necessary cleaning time was ensured even during the transport operation, and the cleaning tact time was shortened. An object of the present invention is to provide a transport mechanism for an automatic cleaning device.
[0007]
A transport mechanism of an automatic cleaning apparatus as a first means for achieving the above object is provided in an automatic cleaning apparatus having a plurality of cleaning tanks sequentially arranged in one direction, and the object to be cleaned is cleaned with the plurality of cleaning objects. A transport mechanism for transporting between the tanks, wherein each of the plurality of cleaning tanks is disposed in the vicinity of the upper side of the plurality of cleaning tanks, and the objects to be cleaned are disposed at a lower position and an upper position in the cleaning tank, and between the upper and lower positions. And an elevator mechanism that conveys the object to be cleaned between the upper positions of the elevator mechanisms. The elevator mechanism conveys the object to be cleaned between the upper positions of the elevator mechanisms. Further, the transport mechanism of the automatic cleaning device as the second means is the transport mechanism of the automatic cleaning device of the first means, wherein each of the elevator mechanisms moves the object to be cleaned in the upper position in one operation. The object to be cleaned at the lower position is transported to the upper position at the lower position. As shown in FIGS. 1 and 2, a hook-and-place transfer mechanism is installed above the cleaning device, and an elevator mechanism corresponding to each cleaning tank is installed between the hook-and-place transfer mechanism and the cleaning tank.
[0008]
As shown in FIGS. 1, 2 and 3, the elevator mechanism is composed of sprockets arranged on both sides of each cleaning tank and a chain stretched endlessly in the vertical direction. Are attached at equal intervals. Then, half the length of the chain per operation, that is, the upper jig receiver moves downward and the lower jig receiver moves upward. And, while the elevator mechanism is stopped, the cleaning jig suspended from the jig receiver on the upper side of each elevator mechanism is transferred to the next process by the hook-and-place transfer mechanism, and then each elevator mechanism is operated. The cleaning jig suspended from the lower jig receiver of the elevator mechanism is moved upward, and the cleaning jig suspended from the upper jig receiver is moved downward.
[0009]
[Action]
With the above configuration, while the cleaning jig on the upper side of the elevator mechanism is moved by the hook and place type transport mechanism, the object to be cleaned in the cleaning jig on the lower side of the elevator mechanism is placed in the cleaning tank. Since the cleaning is performed, the time required for the transportation only becomes the time for the operation of the elevator mechanism, and most of the time during the transportation operation can be used for the cleaning. For example, although the cleaning tact time according to the conventional example is 43 seconds, according to the present invention, as shown in the time chart of FIG. 4, 15 seconds excluding the operation time of the elevator mechanism from the cleaning tact time is 15 seconds. Therefore, the cleaning tact time can be shortened to 21 seconds, and the productivity of the cleaning operation can be increased.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, in order to understand the present invention. In addition, embodiment shown below is one Example which actualized this invention which uses the air cylinder for a drive, Comprising: The technical scope of this invention is not limited.
[0011]
FIG. 1 is a front view showing the overall configuration of the transport mechanism of the cleaning apparatus in one embodiment of the present invention, and FIG. 2 is a side view.
[0012]
In FIG. 1, the cleaning device transport mechanism carries the hook-and-place transport mechanism 1, the elevator mechanisms 2 installed on both upper sides of the cleaning tanks 18 to 20 and the drying tank 21, and the cleaning jig 4 into the cleaning apparatus. A carry-in conveyor 14, a carry-in loader 15 that lifts the washing jig 4 carried into the washing device to a predetermined height, a carry-out loader 16 that carries the washing jig 4 that has undergone the cleaning process onto the carry-out conveyor 17, The cleaning jig 4 is constituted by a carry-out conveyor 17 that carries out the cleaning apparatus.
[0013]
Hook-and-place type conveying mechanism 1 and the lower portion 6 hanging washing jigs with the number of hooks 3 one more than the number of the cleaning tank, the transport carriage portion along the cleaning process unit so that the possible lateral movement The cleaning jig suspension 6 is connected to the transport carriage 5 via the linear guide 7 so that the vertical movement can be performed by the vertical cylinder 8.
[0014]
Then, the lateral movement cylinder 9 for causing the transport carriage unit 5 to perform the lateral movement operation and the lateral movement operation of entering and retracting the hook 3 with respect to the handle of the cleaning jig 4 are performed when the cleaning jig 4 is transported. An escape cylinder 10 is provided, and the lateral feed cylinder 9 and the escape cylinder 10 are coupled by a coupling.
[0015]
As shown in FIG. 3, the elevator mechanism 2 includes a chain 11 stretched endlessly up and down via a sprocket 12, and includes an upper jig receiver 13A and a lower jig receiver 13B for suspending the cleaning jig 4. The cleaning jig 4 suspended from the upper jig receiver 13A is suspended on the lower side and the lower jig receiver 13B by the movement of the chain 11 caused by the rotational movement of the sprocket 12. The lowered cleaning jig 4 is moved upward. The sprocket 12 is rotated by a motor (not shown).
[0016]
Next, the conveying operation in this embodiment will be described.
[0017]
In FIG. 1, when the cleaning jig 4 is carried into the cleaning device by the carry-in conveyor 14 and is lifted to a certain height by the carry-in loader 15, the hook 3 of the transport carriage unit 5 of the hook-and-place type transport mechanism 1 is used for the vertical movement. The cylinder 8 is lowered by the cylinder 8 and then moved to the right by the escape cylinder 10. When it enters under the handle of the cleaning jig 4, it is raised by the vertical cylinder 8 and the hook 3 lifts the cleaning jig 4.
[0018]
Next, when the carriage 5 is moved leftward by the operation of the lateral feed cylinder 9 and moved by the inter-tank distance, and reaches the position of the upper jig receiver 13A of the elevator mechanism 2 in the next process, the vertical cylinder The hook 3 is lowered by 8 and then moved to the left by the escape cylinder 10 to be retracted from the handle of the cleaning jig 4, and the transport of the cleaning jig 4 to the next process is completed. Next, when the hook 3 is lifted by the vertical cylinder 8, the transport carriage unit 5 moves rightward by the operation of the lateral feed cylinder 9, returns to the initial position, and the series of operations of the hook-and-place transport mechanism is completed.
[0019]
The elevator mechanism 2 operates when a predetermined cleaning time has elapsed after the hook 3 is lifted, and the cleaning jig 4 suspended on the jig receiver 13A on the upper side of the elevator mechanism 2 is lowered into the cleaning tank, The cleaning jig 4 suspended from the lower jig receiver 13B is carried above the cleaning tank and waits for movement to the next process. The object to be cleaned in the cleaning jig 4 lowered into the cleaning tank starts cleaning at this point. Then, the cleaning jig 4 that has finished drying in the final processing step is carried out onto the carry-out conveyor 17 by the carry-out loader 16.
[0020]
As described above, the cleaning jig 4 in which the object to be cleaned is placed is transported through a predetermined cleaning process by a transport operation that sequentially repeats the transport operation described above, and is subjected to a cleaning process.
[0021]
FIG. 4 shows the above operation in a time chart. By using this transport mechanism, the transport time excluding the operation time of the elevator mechanism 2 overlaps and can be used for cleaning.
[0022]
【The invention's effect】
Since most of the time during the operation of the transport mechanism can be used for cleaning, the cleaning tact time can be shortened and the productivity of the cleaning operation can be increased.
[0023]
[Brief description of the drawings]
FIG. 1 is a front view showing an overall configuration of a cleaning apparatus transport mechanism according to an embodiment of the present invention.
FIG. 2 is a side view of the above.
FIG. 3 is an explanatory diagram of an elevator mechanism according to an embodiment of the present invention.
FIG. 4 is a time chart of a cleaning apparatus transport mechanism according to an embodiment of the present invention.
FIG. 5 is a front view of a conventional hook-and-place type transport mechanism.
FIG. 6 is a side view of the above.
FIG. 7 is an operation explanatory view of a hook of a hook-and-place type transport mechanism according to a conventional technique.
FIG. 8 is a time chart of the transport mechanism.
[0024]
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hook and place type conveyance mechanism 2 Elevator mechanism 3 Hook 4 Cleaning jig 5 Carriage carriage part 6 Cleaning jig suspension part 7 Linear guide 8 Vertical cylinder 9 Horizontal feed cylinder 10 Escape cylinder 11 Chain 12 Sprocket 13A Upper jig Receiver 13B Lower jig receiver 14 Carry-in conveyor 15 Carry-in loader 16 Carry-out loader 17 Carry-out conveyor 18 Jet cleaning tank 19 Ultrasonic cleaning tank 20 Rinse tank 21 Hot air drying tank

Claims (2)

Provided an automatic cleaning device comprising a plurality of cleaning tanks which are sequentially arranged in one direction, a conveyor structure for conveying the object to be cleaned in between said plurality of cleaning tanks,
An elevator mechanism that is installed in the vicinity of the upper part of the plurality of cleaning tanks and arranges the object to be cleaned at a lower position and an upper position in the cleaning tank, and conveys the object between the upper and lower positions ;
Transport mechanism of an automatic cleaning device, characterized in that it comprises a hook-and-place system mechanism that conveys the object to be cleaned are placed on sides of the plurality of cleaning tanks at between the upper position of each elevator mechanism.   Each of the elevator mechanisms transports the object to be cleaned in the upper position to the lower position and the object to be cleaned in the lower position to the upper position in one operation. Item 2. A transport mechanism for an automatic cleaning device according to Item 1.

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