JPS6156037B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parts feeding drum for a cleaning device, and particularly to a parts feeding drum suitable for an ultrasonic automatic cleaning device.

In ultrasonic automatic cleaning equipment that automatically cleans metal parts, etc., after manually placing the parts in the basket,
This cage is suspended on a feeding device such as a chain and sequentially moved to an ultrasonic tank or steam cleaning tank for cleaning. After cleaning, the cage is removed and the parts inside the cage are manually taken out. It's on. This not only takes time and effort, but also causes the temperature of the cage to drop each time the cage is removed from the device and parts are taken out.
The next time it is used, it is necessary to warm up the basket, which has the disadvantage of consuming a large amount of thermal energy. In particular, the cage is large and made of metal such as punched metal, so it has a large heat capacity, and the energy loss for warming the cage is large.

The present invention has focused on this point, and the cage is installed in an ultrasonic bath or the like within the device, and parts are moved inside the cage simply by rotating the cage, so that the cage can be removed manually. It is an object of the present invention to provide a parts feeding drum for a cleaning device that realizes a fully automatic cleaning device that makes it unnecessary to take out parts.

It is an object of the present invention to provide a parts feeding drum for a cleaning device that allows parts to be attached to a cleaning bath such as an ultrasonic bath for a long time, improves the cleaning effect, and has a simple structure and is easy to manufacture. be.

The parts feeding drum of the present invention has an opening for taking in parts at one end of the rotating drum whose circumferential surface is formed of at least a cylindrical perforated plate such as punched metal,
An opening for feeding parts is provided at the center of the other end, and a spiral is provided on the inner circumferential surface of the drum for feeding the parts in the direction of the rotational axis of the drum. This device is characterized by the provision of a spiral spiral for lifting and sending out the parts that have been sent through the parts to the opening for sending out the parts.

The parts are fed into the intake opening through a chute, etc., and as the drum rotates, they are sent in the direction of the rotating shaft by a spiral spiral, and after being sent to the end where the delivery opening is provided, the parts are sent into the spiral spiral. is lifted up to the delivery opening and sent out from the delivery opening. Because the drum is cylindrical, the parts are thoroughly cleaned during the long period of time during which they are transferred from one end of the drum to the other. Additionally, a cylindrical drum is easy to manufacture.

In addition, since the delivery opening is provided in the center of the other end, parts can be delivered to a high enough position to be delivered out of the cleaning tank, allowing parts to be delivered from one cleaning tank to the next. suitable for

Conventionally, tapered drums (having a spiral on the inner surface for feeding parts) have been known, but when this drum is immersed in a cleaning tank,
Only the large diameter parts of the parts are immersed in the cleaning liquid, and cannot be cleaned over a sufficiently long distance. In this respect, the cylindrical shape of the drum of the present invention is advantageous in that the parts can be immersed in the cleaning liquid over a long distance from one end to the other.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view showing a part of a cleaning apparatus using a parts feeding drum according to the present invention, and FIGS. 2 to 4 are sectional views of part of the drum. This cleaning device includes a parts feeding drum 2 according to the present invention in a first ultrasonic bath 1 so as to be rotatable around a horizontal axis. The rotation of the drum 2 is performed by driving a drum driving means connected to a bearing of the drum or a part of the drum by a driving device (not shown). For example, while the drum 2 is rotatably supported by a bearing, a gear meshing with a gear provided on a part of the drum may be rotated by a chain driven by a motor.

An ultrasonic oscillator 3 is provided at the bottom of the ultrasonic bath 1 to ultrasonically clean parts and the like within the bath. The rotating drum 2 has a component intake opening 4 at one end and a component delivery opening 5 at the other end. A hopper 6 for supplying parts is connected to the opening 4 for taking in parts, and parts supplied from another parts supply line are sent into the drum 2 through this opening 4. A parts delivery opening 5 of the drum 2 is provided at the center of the other end of the drum 2, and this opening 5 is located at a higher position than the upper end of the ultrasonic tank 1, so that the delivered parts are transferred to the next cleaning tank 10. It is designed to be supplied to a component intake opening 12 of a drum 11 inside. In the illustrated example, the second ultrasonic bath 10 has a higher cleaning liquid level than the first ultrasonic bath 1, and the relatively clean cleaning liquid in the second ultrasonic bath 10 overflows into the first ultrasonic bath 10.
It is designed to flow into the relatively dirty cleaning liquid of the ultrasonic bath 1. 7 is a bearing of the drum 2.

The drum 2 has a cylindrical shape with at least a peripheral surface 2a formed of a perforated plate such as punched metal or wire mesh, and the inner wall of the peripheral surface 2a from the end on the component intake side to the vicinity of the end on the component delivery side is , has a spiral component feeding wall 8 (hereinafter referred to as a spiral) having a circular opening 9 in the center. The pitch of this helical spiral 8 can be determined arbitrarily. Further, the size of the central circular opening 9 can also be arbitrarily determined. At the end of the drum 2 on the component sending side, there is a spiral component feeding wall 20 (hereinafter referred to as a spiral spiral) for lifting the components sent by the spiral spiral 8 to the center of the drum 2. is provided. A partition wall 22 having an opening 21 (see FIGS. 2 and 4) is provided between the vicinity of the end where the spiral spiral 20 is provided and the portion where the spiral spiral 8 is provided.
The parts sent through the opening 21 pass through the spiral spiral 2.
Enter the 0 side. The spiral spiral 20 is a spiral whose diameter gradually decreases toward the rotation axis of the drum 2,
The helical component feed wall 20a (see FIGS. 2 and 3) closest to the rotation axis is preferably sloped so as to feed the component toward the delivery opening 5 as the drum rotates.

FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, and FIG. 3 is a cross-sectional view also taken along the line -. FIG. 4 is a sectional view taken along the line - in FIG. 2.

Since the parts feeding drum 2 according to the present invention is constructed as described above, it is possible to not only send parts by rotation in the direction of the rotation axis over a long distance close to the entire length of the drum, but also to At the side edges, parts can be moved inward from the circumferential surface, i.e. to a higher position, so that removing parts from one cleaning tank and feeding them to the next can be done by simply rotating the drum. This can be done through exercise. This eliminates the hassle and time required to remove the basket, which is required with conventional devices.
A highly efficient cleaning device can be realized. In addition, since the drum can remain immersed in the bath at all times, the heat energy used to heat the drum can be saved, making it possible to achieve highly energy-efficient cleaning.

The drum of the present invention can be used for cleaning other than ultrasonic cleaning, and is suitable for automation of various cleaning devices. In particular, since it has the function of sending parts from one cleaning tank to the next cleaning tank, it is suitable for a cleaning device equipped with a plurality of cleaning tanks.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part of an example of an ultrasonic cleaning device using an embodiment of the present invention, and FIG.
3, and FIG. 4 is a sectional view taken along the line - in FIG. 2, respectively. 1... Ultrasonic cleaning tank, 2... Rotating drum, 4...
...Opening for taking in parts, 5...Opening for sending out parts,
6...Hopper, 8...Spiral spiral, 20...Spiral spiral, 21...Opening, 22...Partition wall.

Claims (1)

[Claims] 1. On the inner surface of the circumferential surface of a cylindrical drum, which has a porous circumferential surface with an opening for taking in parts at one end and an opening for sending out parts at the center of the other end, as the drum rotates, A spiral spiral is provided at the other end of the drum for feeding the parts to be cleaned, and the spiral and the parts delivery opening are connected to each other in a plane perpendicular to the rotation axis of the drum. A parts feeding drum for a cleaning device, characterized in that a spiral spiral is provided for transporting the parts fed by the spiral to the sending opening within this plane as the drum rotates.