JPS63386Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention is used in surface treatment equipment such as plating equipment, in order to prevent treatment liquid from entering the next tank. The present invention relates to a liquid draining device that applies vibration to a processed object to drain the liquid.

<Prior art> Conventionally, this type of liquid draining device holds a storage frame and moves up and down at a constant speed to swing the object to be processed inside the storage frame, and the device disclosed in Japanese Patent Laid-Open No. 53-20257 There are some that rotate and raise and lower at the same time.

<Problems to be solved by the invention> By the way, in all of the above conventional configurations, the storage frame is held integrally and its rocking is performed mainly by a reciprocating device such as an air cylinder. Therefore, the rocking direction becomes uniform and sufficient acceleration vibration cannot be applied. For this reason, the liquid draining effect becomes insufficient, and in order to perform the required liquid draining, a large number of reciprocating movements or high speed movement is required, and a large output is required.

The object of the present invention is to provide a liquid draining device that does not have the above-mentioned conventional drawbacks.

<Means for Solving the Problems> The present invention is a connecting jig having locking jaws projecting from the upper part of the storage frame for the processed material, and the locking jaws are hooked from below to connect the storage frame to the storage frame. a lifting frame equipped with a locking plate that supports the locking plate; a reciprocating lifting cylinder disposed above the locking plate; and a connection installed at the end of the cylinder rod of the reciprocating lifting cylinder and capturing the connecting jig. a first timing control device for driving the connecting device when the cylinder rod is extended and the connecting device is in a position where it can capture a connecting jig supported by a locking plate; and a first timing control device for driving the connecting device, and the cylinder rod is retracted. and a second timing control device that releases the driving of the connecting device when the connecting jig is positioned above the locking plate, and a second timing control device that counts the number of times the cylinder rod is raised and lowered and stops driving the reciprocating lifting device when the count is up. It consists of a counter and a counter.

<Operation> When the cylinder rod is extended and the connecting device is at a predetermined position, the connecting device is driven by the first timing control device, and the connecting jig is captured. Then, the cylinder rod contracts and the storage frame is lifted out.
When the connecting jig is at a predetermined position above the locking plate, the second timing control device releases the driving of the connecting device, and the connecting jig is released from the connecting device.
The storage frame falls onto the locking plate due to the acceleration of gravity. Then, the object to be treated is subjected to a strong impact, causing secondary vibrations and reactions in various directions, and the liquid is efficiently drained. This liquid draining operation is repeated one or more times until the counter counts up, and the predetermined liquid draining operation is completed.

<Example> An example of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a device base that is long in the left and right directions, and guide rails 2, 2 are fixed to the rear of the base 1, extending in the left and right direction at regular intervals. 5 is mounted on the conveyor 4, and the carrier 4 is supported so as to be movable in the left and right direction. The device base 1
A large number of processing liquid tanks 3 such as plating tanks are arranged in the left and right direction in parallel with the guide rails 2, 2 in the front part.
The conveyor 4 has an elevator motor 8 that reversibly rotates an elevator screw 7 that is vertically supported in a column 6 that is erected at the front of the conveyor 4. An elevating pedestal 9 that is screwed onto and horizontally protrudes forward is driven up and down. Hanging arms 10, 10 are vertically provided on the lifting frame 9 at the front and rear thereof, corresponding to the top of the processing liquid tank 3, and locking plates 11, 11 are protruded in parallel from the inside of the lower end thereof.

13 is a storage frame for storing the object to be processed,
V-shaped power supply seats 12 provided at the front and rear upper edges of the processing liquid tank 3,
A power supply conductor 14 whose front and rear ends are mounted on the jaw 12 is passed in the front and rear direction, and the front and rear lower surfaces are locked on the upper part of the jaw 1.
6 and 16 are horizontally supported. The longitudinal width of the connecting jig 15 is wider than the distance between the inner ends of the locking plates 11, 11.

When the elevating frame 9 is held in the lowered position, the locking plates 11, 11
The height position is determined by the locking jaws 16 of the connecting jig 15 of the storage frame 13, which is supported in the processing liquid tank 3 with the power supply conductor 14 mounted on the V-shaped power supply bases 12, 12. , 16. Therefore, when the elevating frame 9 moves forward with the movement of the conveyor 4 while remaining in the lowered position and stops at the processing liquid tank 3, the locking plate 1
1 and 11 are located directly below the locking jaws 16 and 16, and when the elevating platform 9 rises as shown by the chain line in FIG. Along with the rise, the storage frame 13 also rises.

Reference numeral 18 denotes a fixed frame that projects horizontally forward from the upper end of the support column 6, and as clearly shown in FIG.
0 is installed vertically, and an air-type reciprocating lifting cylinder 21 is installed in the center of the lower surface, and guide cylinders 22 are installed at the front and rear.
22 are held in the upper and lower directions, respectively. Further, an elevating plate 23 is fixed to the tip of the rod of the reciprocating elevating cylinder 21, and the tips of guide rods 24, 24 inserted into the guide tubes 22, 22 are fixed to the elevating plate 23, so that the elevating plate 23 is leveled. I try to keep it. Vacuum suction cups 25, 25, which are an example of a connecting device, are fixed to the lower surface of the elevating plate 23, with their suction ports facing downward. The vacuum suction cups 25, 25 are attached to the upper surface of the connecting jig 15, which is stopped above the processing liquid tank along with the elevating frame 9, as shown in FIG. is positioned to allow its suction port to come into contact with.

As shown in FIG. 4, the vacuum suction cups 25, 25 exert a suction effect on the suction port RO due to the decrease in static pressure accompanying the high-speed outflow of compressed air sent from the supply port A to the outlet C within the pump. It communicates with the suction port of the ejector-type vacuum pump 30 that generates the compressed air, and can apply suction in a timely manner by controlling the outflow of the compressed air.

The operation of the above embodiment will be explained.

As described above, the elevating frame 9 has locking plates 11, 11.
The connecting jig 15 is placed on top of the housing frame 13, and when it reaches the upper limit position indicated by the chain line in Figure 1,
The limit switch LS ₁ comes into contact with the top surface of the elevating platform 9 and turns on, stopping its elevation, and
The air supply direction of the reciprocating lifting cylinder 21 is switched, the rod extends, and the vacuum suction cups 25, 25 of the lifting plate 23 come into contact with the upper surface of the connecting jig 15 as shown in FIG. At this time, the limit switch LS ₂ (first timing control device) attached to the lower surface of the lifting plate 23 connects the detector with the connecting jig 1.
5 is turned on by contact with the upper surface, the contact is detected, and the solenoid valve V shown in FIG. 4 is switched. Therefore, compressed air is transferred from the compressor C to the vacuum pump 30.
, flows out from the outlet C which communicates with the silencer S, creates a reduced pressure on the suction port B side, and produces a suction action on the vacuum suction cups 25, 25 which communicate through the vacuum filter F. Connection jig 1
5 is captured. Furthermore, due to the reduced pressure inside the pipe L,
The vacuum switch SW communicating with the pipe L is activated, and the air supply direction of the reciprocating lifting cylinder 21 is switched again, and the rod is contracted and the third
The storage frame 13 is pulled up as shown by the solid line in the figure.

When the lifting plate 23 rises to a certain position, the limit switch LS ₃ (second timing control device) fixed to the guide rod 24 moves its detector and the guide tube 2.
2 It turns on due to contact with the lower surface and the solenoid valve V turns on again.
Switch. For this reason, vacuum suction cups 25, 25
The suction action of is released, the connection jig 15 is released from the grip, and the storage frame 13 falls to the position where the locking jaws 16, 16 are supported by the locking plates 11, 11 (see the chain line in Figure 3). ). At this time, the acceleration accompanying the fall and the impact when the locking jaws 16, 16 abut against the locking plates 11, 11 cause reaction and secondary vibrations in various directions, causing the storage frame to Effective liquid draining is performed on the object to be processed within 13. When the pressure in the pipe line L increases as the connecting jig 15 is opened, the vacuum switch SW is switched again and the elevating plate 23 is lowered.

A counter K for accumulating the number of detections is connected to the limit switch _LS3 , and when the above-described cycle is repeated a predetermined number of times, the counter K counts up and the process moves to the next step.

In FIG. 5, two reciprocating lifting cylinders 21, 21 for lifting are vertically installed on the lower surface of the tip of the lifting frame 9,
Vacuum suction cups 25 and 2 are attached to the lower ends of the rods, respectively.
5 is fixed, and this structure also achieves the same functions and effects as those of the previous embodiment. However, while in the above embodiment the liquid can be drained only in the liquid tank 3 having the fixed frame 18 at the top, in this embodiment the liquid can be drained in any liquid tank 3 and at any height position. This has the advantage of not being restricted by the position of the fixed frame 18, such as being able to perform various operations. The rest of the operation of this embodiment is the same as that of the previous embodiment, so a description thereof will be omitted.

FIG. 6 shows another embodiment of the connecting device, in which two reciprocating lifting cylinders 21, 21 are vertically installed on the lower surface of the tip of the lifting frame 9, and locking cylinders 40, 40 are installed at the lower ends of the rods, respectively. It is supported in the front and back direction, and the locking jaws 16, 1 are connected at the rod end.
Perform locking step 6. The timing of expansion and contraction of this rod is the same as the suction timing of the vacuum suction cups 25, 25 explained in the operation of the previous embodiment, and will therefore be omitted.

<Effects of the invention> As clarified in the above explanation, the invention has the following effects:
The locking jaws 16, 16 of the connecting jig 15 protruding from the upper part of the processing object storage frame 13 are hooked to the locking plates 11, 11 provided on the elevating frame 9 to suspend the storage frame 13. Then, the connecting device is connected to the jig 15 at the stopping position of the lifting frame 9 above the processing liquid tank 3, and after lifting it up a little, the connection is released and the locking jaws 16, 16
The storage frame 13 is allowed to fall to a position where it abuts against the locking plates 11, 11. Then, this cycle was repeated one to several times to drain the liquid. For this reason, acceleration occurs due to gravity as it falls, and secondary vibrations and reactions occur in various directions due to the impact caused by the fall to the locking plates 11, 11.Efficient liquid draining is possible due to the simple structure. It has excellent effects such as being able to perform work.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, in which Fig. 1 is a schematic side view of the surface treatment device, Figs. 2 and 3 are side views of essential parts showing the lifting and lowering operation of the vacuum suction cups 25 and 25, and Fig. 4. is a control circuit diagram, FIG. 5 is a side view of the main part showing another embodiment in which the vacuum suction cups 25, 25, etc. are supported on the lifting frame 9, and FIG. 6 is a schematic front view showing another embodiment of the connecting device. It is a diagram. 4; Conveyor, 9; Elevating frame, 11, 11; Locking plate, 13; Storage frame, 15; Connection jig, 16, 1
6; Locking jaw, 21; Reciprocating lifting cylinder, 23;
Elevating plate, 25, 25; Vacuum suction cup, 40, 4
0: Locking cylinder, LS ₂ , LS ₃ ; Limit switch, K: Counter.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A locking device that supports the storage frame by latching the locking jaws from below of a connecting jig that has locking jaws projecting from the upper part of the storage frame for processing objects. an elevating frame provided with a plate; a reciprocating elevating cylinder disposed above the locking plate; a connecting device disposed at the end of the cylinder rod of the reciprocating elevating cylinder and capturing the connecting jig; and the cylinder rod. a first timing control device that drives the connecting device when the connecting device is extended and the connecting device is in a position where it can capture the connecting jig supported by the locking plate; and a first timing control device that drives the connecting device when the cylinder rod is contracted and the connecting jig is a second timing control device that releases the drive of the connecting device when the cylinder rod reaches a position above the locking plate, and a counter that counts the number of times the cylinder rod is raised and lowered and stops driving the reciprocating lifting device when the count is up. A liquid draining device for the treated object in a surface treatment device. 2. A liquid draining device for a workpiece in a surface treatment apparatus according to claim 1, wherein the reciprocating lifting cylinder is supported by a fixed frame above a predetermined liquid tank. 3. A liquid draining device for a workpiece in a surface treatment apparatus according to claim 1, wherein the reciprocating lifting cylinder is supported by an lifting frame. 4. A liquid draining device for a workpiece in a surface treatment apparatus according to claim 1, wherein the connecting device is constituted by a vacuum suction cup that adheres to the upper surface of a connecting jig.