JPH0448581B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an open swinging barrel used in a device that performs surface treatment on a workpiece inside the barrel while swinging the open swinging barrel in a processing tank. This relates to a drive device.

(Prior art) The open swinging barrel is equipped with an open opening on the side for loading and unloading objects to be processed.During processing, an opening is provided to prevent objects from falling through this opening. It is designed to perform rocking motion within a certain angle range of about 120 degrees. Conventionally, in order to drive such an open swinging barrel, a toothless sprocket with engaging teeth only within the angle range corresponding to the barrel swing angle was provided on the barrel shaft side, and a rack etc. that engaged with this sprocket was installed in the processing tank. A device is used that is installed on the side and reciprocates to perform rocking motion within a certain angular range. (For example, Utility Model Publication No. 60-32124). However, if the processing tank is long and the barrel is moved horizontally to the next station while in the lowered position, the final tooth of the missing tooth sprocket will move while colliding with each tooth of the long rack, resulting in damage. Not only is it easy to use, but it also has the disadvantage of generating noise. In addition, with this conventional device, the rack must be reciprocated with strong force, which complicates the drive mechanism.
Since the rack was driven while the carrier was stationary, it also had the disadvantage that it was not possible to swing the barrel while it was moving.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, does not generate noise even when horizontally moving an open swinging barrel in a processing tank, and has a drive mechanism. It was completed with the aim of creating a drive device for an open swinging barrel that has a simple mechanism and can swing even during horizontal movement.

(Means for Solving the Problems) The present invention is characterized in that an open swinging barrel is rotatably supported in a vertical plane on a lifting hanger of a carrier that moves intermittently along a processing tank 1, and a circular shaft is attached to the rotation axis. The plates are connected to each other, and a sprocket is provided on the side of the disc, which engages with the drive chain and rotates when the lifting hanger comes down, and the sprocket and the disc are connected by a link that constitutes a crank lever mechanism. It is characterized by being connected.

(Embodiment) Next, the present invention will be explained in detail with reference to the illustrated embodiment. 1 is a processing tank, 2 is a frame on the side thereof,
3 is the processing tank 1 on the rails 4, 4 of this frame 2.
The carrier 5, which moves intermittently along the carrier 3, is a lifting hanger that can be raised and lowered by the action of lifting rollers 6 relative to the carrier 3. A hanging arm 7 is suspended from the tip of the lifting hanger 5, and an open swinging barrel 9 having an open opening 8 is pivotally supported at the lower end thereof so as to be rotatable in a vertical plane. The open swinging barrel 9 is connected to a shaft 13 via gears 10, 11, 12, etc.
is connected to. As shown in FIGS. 2 and 3, a clutch 14 and a disc 1 are attached to the tip of the shaft 13.
5 is provided. The clutch 14 is a disc 15
The pawl clutch plate 18 is provided with a pawl 17 corresponding to the pawl hole 16 of the pawl clutch plate 18 by a clutch hawk 20 operated by a cylinder 19.
The pawl 17 is fitted into the pawl hole 16 of the disc 15 when it is slid to the left in FIG. The pawl clutch plate 18 is attached to the shaft 13 by a key 21 so that it cannot rotate relative to the shaft 13, and the disc 15 is attached so that it can rotate relative to the shaft 13. 17
When the shaft 13 and the disc 15 are fitted into the pawl hole 16 of the disc 15, the shaft 13 and the disc 15 are integrated, and the pawl clutch plate 18 is inserted in the opposite direction.
The shaft 13 and the disc 15 are separated when the shaft 13 is moved.

As shown in FIG. 3, a sprocket 22 is pivotally supported on the side of the disc 15, and a pin 23 is provided protruding from an eccentric position of the sprocket 22.
A link 25 connects the disk 15 to a pin 24 protruding from an eccentric position. The relative positions and sizes of each of these members are determined so as to constitute a mechanical crank lever mechanism, and the rotational movement of the sprocket 22 is converted into the swinging movement of the disk 15 by the action of the link 25. It's becoming like that. As shown in FIG. 1, this sprocket 22 meshes with a drive chain 26 stretched over the frame 2 when the lifting hanger 5 is lowered, and the drive chain 26 is rotated in a fixed direction by a motor 27. The sprocket 22 is also rotated, and the disc 15 and the shaft 13 connected to the disc 15 via the clutch 14 are rocked by the action of the crank lever mechanism.

(Function) In the apparatus configured as described above, the object to be treated is introduced into the open rocking barrel 9 through the opening 8, and the single treatment tanks 1a and 1a are arranged in large numbers, for example, as shown in FIG. Carrier 3 along continuous treatment tank 1b
The lifting hanger 5 is lowered into the inside of each processing tank 1 while moving the lifting hanger 5 intermittently, and the open swinging barrel 9 is immersed in the processing liquid to perform surface treatment such as plating. When the sprocket 22 is lowered, the sprocket 22 engages with the drive chain 26 and starts rotating. At the same time, the disc 15 swings within a certain angle range due to the action of the link 25 that constitutes the crank lever mechanism, and in the normal state when the clutch 14 is connected, the rotating shaft 13 also swings. Through the gears 12, 11, and 10, the open swing barrel 9 is repeatedly caused to swing within a certain angle range within a vertical plane while keeping the opening 8 facing upward. In a lid holder using such a crank lever mechanism, simply by continuously rotating the drive chain 26 in one direction, the lidless swinging barrel 9 is automatically made to perform a swivel motion within a certain angle range. be able to. Therefore, in the present invention, there is no need for the drive unit to perform reciprocating motion as in the conventional rack type, and the carrier 3 moves horizontally inside the continuous processing tank 1b with the lifting hanger 5 in a lowered state. Since the sprocket 22 and the drive chain 26 can be kept in a meshed state even in the case of a sprocket, the sprocket 22 and the drive chain 26 can be kept in a meshed state, so that unlike the conventional sprocket type with missing teeth, there is no noise or damage due to impact. Moreover, the device of the present invention allows the swinging movement of the open swinging barrel 9 to continue even during horizontal movement, so compared to the conventional structure in which the barrel swings only at each stop station, the surface This makes it possible to further enhance the processing effect. As shown in FIG. 5, a discharge gear 28 that directly meshes with the gear 10 of the open rocking barrel 9 is provided at the discharge position of the processed material shown in FIG. and the shaft 13 to the disk 15
The object to be processed can be discharged by rotating the open swinging barrel 9 until its opening 8 faces downward.

(Effects of the Invention) As is clear from the above description, the present invention eliminates the problem of noise generation and damage-causing shocks when horizontally moving an open swinging barrel in a processing tank. Moreover, since the drive chain only needs to be rotated continuously in one direction, the structure can be simplified compared to conventional racks that reciprocate. Moreover, in the present invention, the open swinging barrel can be caused to swing even during horizontal movement to the next station, and the surface treatment effect can be further enhanced. The crank lever mechanism used in the present invention can change the swing angle by adjusting the length of each link, so it has the advantage that the optimal swing angle can be selected depending on the structure of the barrel tank. be. Therefore, the present invention makes an extremely large contribution to the industry as a drive device for an open swinging barrel that eliminates the problems of the conventional art.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a front view of the clutch portion, Fig. 3 is a side view showing the crank lever mechanism, Fig. 4 is a plan view thereof, and Fig. 5. FIG. 6 is a partially cutaway front view showing the discharge state of the material to be processed, and FIG. 6 is a plan view showing an example of the arrangement of the processing tank. 1: Processing tank, 3: Carrier, 5: Elevating hanger,
9: Open rocking barrel, 13: Rotating shaft, 15: Disc, 22: Sprocket, 25: Link, 26:
drive chain.

Claims (1)

[Claims] 1. An open rocking barrel 9 is rotatably supported in a vertical plane on a lifting hanger 5 of a carrier 3 that moves intermittently along the processing tank 1, and a disc 15 is connected to the rotating shaft 13. A sprocket 22 is provided on the side of the disc 15 to be rotated by meshing with a drive chain 26 when the lifting hanger 5 is lowered, and this sprocket 22 and the disc 15 are connected by a link 25 that constitutes a crank lever mechanism. A drive device for an open swinging barrel, which is characterized by: