JPS6229106Y2 - - Google Patents

Description

[Detailed description of the device] In this device, an air blow section and a cleaning section are installed vertically in a cleaning tank, and the object to be cleaned is moved between the two sections by a movable mounting table to perform cleaning and drying. The present invention relates to a lid opening mechanism in a cleaning device.

A mechanism shown in FIG. 1 has been proposed as this type of lid opening mechanism. That is, 1 is a cleaning tank,
A cleaning section 3 having a cleaning liquid injection nozzle 2 in the lower part thereof and an air blowing section 5 having an air injection nozzle 4 in the upper part thereof are arranged vertically in series.
Reference numeral 6 denotes a movable mounting table on which the object to be cleaned 7 is placed and moved up and down between the air blow section 5 and the cleaning section 3 by, for example, a hydraulic cylinder 8. Reference numeral 9 denotes a rotary opening/closing lid body formed on the upper part of the cleaning tank 1, and is driven to open and close by an opening/closing drive mechanism 10.

The opening/closing drive mechanism 10 has a rotating arm 12 pivotally attached to a column 11 vertically installed along the outer circumferential surface of the tank 1.
The tip of the rotating arm 12 is pivotally connected to the center of the lid 9, and a pinion 13 is fixed to the base, and this pinion 13 is fixed to a piston rod 15 of a pneumatic cylinder 14 attached to a column 16. The lid 9 is meshed with a rack 16, and the lid 9 is opened and closed by moving the rod 15 back and forth.

According to the above-described conventional apparatus, since the lid 9 is opened and closed by the opening/closing drive mechanism 10 when the object 7 to be cleaned is taken in and out of the cleaning tank 1, the movable mounting table 6
When the object 7 to be cleaned reaches the top position where the object 7 is placed or taken out, the drive mechanism 10 is activated to open the lid 9,
It is necessary to take in and out the object 7 to be cleaned, and it is necessary to interlock the movable mounting table 6 and the opening/closing drive mechanism 10, which makes the mechanism complicated. There is a risk of an unexpected accident such as the operator's hand getting caught when closing the lid, and opening/closing the lid 9 other than the normal opening/closing, checking the cleaning status of the object 7, or other operations. Opening and closing when necessary must be performed by operating the cylinder 14 each time, which has disadvantages such as cumbersome operation.

In the present invention, an engaging piece that engages with the lower surface of the rotary opening/closing lid is disposed on the movable mounting table, and as the movable body rises, the rotating opening/closing lid is pushed open against its own weight. Accordingly, it is an object of the present invention to provide a novel lid opening mechanism for a cleaning device that can eliminate the drawbacks of the conventional devices.

An embodiment of the present invention will now be described with reference to the drawings.

2 and 3 are a longitudinal sectional view and a transverse sectional view, respectively, showing an embodiment of the present invention, and corresponding parts to those in FIG. 1 are given the same reference numerals, and detailed explanation thereof will be omitted.

In this example, the movable mounting table 6 is constructed as shown in FIG. That is, a pair of L-shaped plates 20 and 21 are fixed to the horizontal rod portion 19 of the inverted U-shaped plate 18, and a continuous rod 22 is bridged between the free ends of these L-shaped plates 20 and 21. together with each supporting piece 2
3 and 24 are fixed, and the shaft 2 is held between the support pieces 23 and 24.
5 is bridged.

A cylinder 28 to which rotating receiving plates 26, 27 are fixed, which extend in parallel with a required distance from each other, is rotatably disposed on the shaft 25, and a rotating arm 29 is pivotally attached for rotating the rotating receiving plates 26, 27 in cooperation with an engagement guide plate 39, which will be described later. Reference numeral 30 denotes a pin implanted on the outer surface of the rotating receiving plate 27, and reference numeral 31 denotes a roller disposed on the rotating arm 29.

Also, approximately in the center of the horizontal plate portions of the L-shaped plates 20 and 21 is an engaging piece 3 having a rotary roller 32 pivotally attached to the upper end thereof.
3 and 34 are installed vertically.

Furthermore, guide rollers 35 and 36 are attached to the outer surfaces of both side plates of the inverted U-shaped plate 18, respectively, and the central plate 1
A fixing piece 37 for fixing the piston rod of the hydraulic cylinder 8 is vertically provided at the center of the upper surface of the hydraulic cylinder 9 .

Thus, the movable mounting table 6 having the above-mentioned configuration is installed in the tank 1.
Guide rails 38, 3 arranged on the opposite inner wall of
9 are engaged with guide rollers 35 and 36, respectively, and are arranged to be slidable up and down.

Reference numeral 40 denotes an engagement guide piece attached to the upper left side wall of the tank 1, and a guide plate 42 that slopes downward to the left is fixed to the back side of the horizontal plate portion 41. Guide rotation.

Next, the operation of the present device having the above configuration will be explained.

Assume that the piston rod of the hydraulic cylinder 8 is contracted and the movable mounting table 6 is at the uppermost position for placing the object to be cleaned, as shown by the solid line in FIG. 2. In this state, the engagement pieces 33 and 34 are The mating roller 32 engages with the lower surface of the rotary lid 9 and pushes the lid 9 open, in an open lid state, and the rotary receiving plates 26 and 27 are connected to the connecting rod 22.
The rotation is restricted by contacting the top surface of the

In this state, the object to be cleaned 7 is placed on the rotating receiving plates 26 and 27.
When the movable mounting table 6 is lowered by operating the hydraulic cylinder 8, the lid body 9 rotates counterclockwise in response to the lowering of the movable mounting table 6 and is closed.

In addition, as the movable mounting table 6 descends, the rotating arm 29 engages with the upper surface of the guide plate 42 of the engagement guide piece 40 and rotates clockwise.
6 and 27 do not rotate and maintain the state in which the object 7 to be cleaned is placed.

When the movable mounting table 6 reaches the lowest cleaning position, it is cleaned by the cleaning liquid sprayed from the cleaning nozzle 2.

After cleaning is completed, the hydraulic cylinder 8 is operated in the opposite direction to the above, and the movable mounting table 6 starts to rise. When it reaches the air blow position, the cleaning liquid is dried (drained) by the air jetted from the air injection nozzle 4. be done.

When drying is completed, the movable mounting table 6 is further raised, and the engagement rollers 32 of the engagement pieces 33 and 34 engage with the lower surface of the lid 9, and the lid 9 is gradually pushed open against its own weight. Also, as the lid body 9 is opened, the rotating arm 29
The roller 31 engages with the lower surface of the guide plate 42, and the rotating arm 29 gradually rotates counterclockwise. Correspondingly, the rotating receiving plates 26 and 27 also rotate counterclockwise,
The object to be cleaned 7 placed on the rotary receiving plates 26, 2
7 and is received on the receiving box 43.

When the movable mounting table 6 further rises and the roller 31 of the rotating arm 29 disengages from the guide plate 42, the rotating arm 2
9 and the rotary receiving plates 26 and 27 rotate clockwise under their own weight and return to their original positions, and the movable mounting table 6 returns to the object-to-be-cleaned mounting position.

Therefore, by placing a new object to be cleaned 7 on the movable mounting table 6 and repeating the above operation, continuous cleaning can be performed.

In addition, when opening the lid 9 to check the cleaning status of the object 7 to be cleaned, perform maintenance inspection, etc. while the movable mounting table 6 is lowered and the lid 9 is closed, the lid 9 must be rotated. Since no regulating member is attached, it can be opened easily by hand.

Furthermore, if the operator's hand or other member gets caught when the lid body 9 transitions from the open state to the closed state,
Since the lid 9 shifts to the closed state due to its own weight, the rotation of the lid 9 stops when the operator's hand or the like is caught, and there is no risk of an accident.

As described above, according to the present invention, the engaging piece engages the lower surface of the lid when the movable mounting table is raised, and the lid is automatically opened, and the lid is closed when the movable mounting table is lowered. Since the operation is carried out by the weight of the lid itself, there is no need to separately provide a drive mechanism for opening and closing the lid, and it is only necessary to provide an engagement piece on the movable mounting table, which greatly reduces the number of parts. The lid can be opened and closed freely in the closed state, and if the operator's hand or the like gets caught when the lid is closed, the lid will stop rotating at that point, so there is no risk of an unexpected accident. Has excellent effects.

In the above example, the movable mounting table 6 is provided with a pair of engaging pieces 33, 34, but one of them may be omitted.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing a conventional device, Figs. 2 and 3 are longitudinal sectional views and transverse sectional views showing an embodiment of the present invention, and Fig. 4 is a perspective view showing an example of a movable mounting table. be. 1...Cleaning tank, 3...Cleaning section, 5...Air blow section, 6...Movable mounting table, 7...Object to be cleaned, 9
... Rotating opening/closing lid body, 33, 34... Engaging piece.

Claims (1)

[Scope of utility model registration request] An air blow section and a cleaning section are arranged vertically in the cleaning tank, and a movable mounting table for placing the object to be cleaned is movably arranged between the two sections. In a cleaning device equipped with a movable opening/closing lid, the movable mounting table is provided with an engaging piece that engages with the lower surface of the rotary opening/closing lid, and the movable mounting table moves up to cause the rotation. A lid opening mechanism for a cleaning device, characterized in that the opening/closing lid body is pushed open against its own weight.