JPS63147724A - Unloading station for intermediate storage instrument storing small-sized part - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an unloading station for intermediate storage for storing and transporting small parts.

[Conventional technology]

To date, small parts, such as stamped parts, turned parts, etc., which are processed in a processing station and are galvanized or heat treated after production - from where they have to be transported to other processing stations or intermediate warehouses. , cannot be processed as bulk material - is mostly filled by hand into wooden crates and, after being stored for a period of time in intermediate warehouses, or directly sent to other processing stations without being stored in intermediate warehouses. where it is again fed by hand to other processing or processing equipment. During this manual handling operation, individual crates are stacked on pallets, if possible, and transported by forklift or other vehicle. At another station, the crates are transported one by one again. This manual handling method leads to increased product prices.

This is because the labor itself is expensive, it is almost impossible to allocate operators in a purposeful or rational manner, and, in the case of machines that are operated all day long, expensive and disliked night work is required. This is because workers must be allocated.

[Purpose of the invention]

The object of the present invention was made to eliminate the above-mentioned disadvantages associated with the unloading of small parts;
To provide an unloading station that can automatically unload small parts from intermediate storage. Small parts include all items that cannot be handled as bulk materials in arbitrary quantities. This applies not only to compression-molded parts made of sintered material, but also to all types of turned and stamped parts as well as assembled parts, such as ball bearings.

[Structure of the invention]

This purpose, according to the invention, consists of an approximately cylindrical container with a number of rotatably driven trays arranged one above the other at intervals, for an unloading intermediate storage device for accommodating and transporting small parts. At the station, one vertical slit extending from the upper end to the lower end of the container is formed in the outer circumferential wall of the container, through which small parts can be loaded onto and placed on the mounting tray, and small parts can be carried out from the mounting tray. It is possible that the tray is fixedly connected to the support at the center,
The container, together with the tray and the support, can be placed on a stationary support device adapted to the bottom of the container and can be lowered from the support device, which supports the support device with the container placed on it. A lifting device equipped with a control device is attached to the support device to raise and lower the support device in stages corresponding to the vertical spacing of the platform, and is equipped with a rotation drive means for the support column for rotation. A deflection device is provided attached to the slit for guiding the small parts on the pan toward and through the slit, the deflection device intersecting a radial line passing through the center of the slit and the central axis of the column. It can be slid from the edge of the slit towards the column so that, before raising or lowering the support device, the deflection device moves out of the range between the trays and the column is rotated for unloading. This is achieved by forming the sliding mechanism of the deflection device such that the deflection device slides between the mounting plates and up to the column when the deflection device is moved.

Here, a conveyor belt is preferably provided in order to feed the small parts into the slit formed in the outer circumferential wall of the container or to transport them out of the slit. Preferably, an adjustable time relay is also provided for initiating the stepwise raising and lowering of the lifting device.

[Functions and effects of the invention]

With the above configuration, during unloading, the deflection device is first inserted between the trays of the intermediate storage, and the trays are rotated. Thereby, the small parts on the tray are guided along the deflection device towards the slit and are conveyed out through the slit. When unloading is completed, the deflection device is withdrawn from the container and the intermediate storage is lifted by the lifting device so that the next empty tray reaches the height position of the guide rocker.

By inserting the deflection device between the trays again and repeating the above operation, the small parts can be completely removed from the intermediate storage. The unloading station according to the invention can therefore automatically unload small parts from intermediate storage.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the drawings.

The intermediate storage for an unloading station according to the invention comprises a cylindrical vertical container 1, as shown in particular in FIG. This container includes a container outer peripheral wall 1a and a bottom 1b. Inside the container, a column 2 is rotatably supported by at least one ball bearing 3. This support column 2 is provided with a large number of supports i4 arranged vertically at equal intervals. This mounting plate 4 is connected to the support column 2 so as not to rotate relative to the support column 2. The mounting plate 4 is formed into a circular shape corresponding to the shape of the cylindrical container 1, and is fixed to the support column 2 at its center. As can be seen in particular from FIG. 2, the container outer peripheral wall 1a has one vertical slit 1c extending from its upper end to its lower end. The container bottom 1b is provided with a conical edge 1d so that it can be placed exactly and easily on a support device generally designated 5. For this purpose, the support device 5 is provided with a corresponding conical receiving edge portion 5a. Furthermore, the container bottom 1b is provided with a notch 1e into which the fork 11 of the forklift 12 is inserted. The support device 5 itself is equipped with rotational drive means, ie a motor 6. This motor is connected via a transmission 7 to a clutch drive 8 . This clutch drive side cooperates with a clutch driven side 9 which is correspondingly formed and mounted on the lower end of the rotatable column 2, so that when the intermediate storage is installed at the station, the motor 6 can The strut 2 of the intermediate reservoir can be rotated. The support device 5 furthermore comprises a lifting device. In the embodiment shown, this lifting device is designed as a lifting platform 10, which is known per se.

A support base 13 fixedly arranged at the station is provided with a scale 14 carved in the vertical direction. This scale is plate 4
A large number of stages are arranged at the same intervals, and a support device! 5
It is sensed by a sensor 15a (see FIG. 1) provided at. This sensor, together with a control device housed in the base 13, serves to raise and lower the platform 10 by the distance of the tray 4 in each case by means of pulses from an adjustable time relay. A driving roller of the conveyor belt 16 is supported above the support base 13 as follows. That is, small parts 2
1 is supported so that it can easily reach the tray 4 located at the same height from the conveyor belt 16.

A cargo guide rocking rod 17 is further soldered to the support base 13 so as to be swingable. This guide swinging rod is swung by a swinging mechanism (not shown) and can pass through the slider 1c and enter between the two plates 4. As a result, when the tray is rotating, the small parts placed on the tray 4 from the conveyor belt 16 rotate together with the tray, hit the guide rocking rod 17, and are deflected radially inward along the guide rocker. and guided towards pillar 2. In this case, a suitable rocking mechanism for the guide rocker 17 is programmed as follows. That is, when the tray 4 is rotated for loading in the direction of the arrow 18 and the conveyor belt 16 is moving in the direction of the arrow 19, the rocking mechanism causes the guide rocker to swing between the trays 4. , and before the support device 5 is raised or lowered, the guide rocking rod 17 is controlled by the program so as to swing out from between the trays 4 through the sulin) lc. If the guide rocker 17 is provided with a return spring and the unloading deflection device 20 described below is designed in such a way that it also serves to rock the guide rocker, a rocking mechanism for the guide rocker is provided. may be omitted.

This deflection device 20 serves to guide the small parts on the tray rotating in the direction opposite to the arrow 18 towards the sulin) lcO and through the slit 1c towards the conveyor belt 16. This deflection device 20 essentially consists of an arm that can be slid from the edge of the slit 1c towards the column 2.

In this case, this sliding direction intersects a radial line pointing from the column 2 towards the center of the slit 1c. At this time, the swinging mechanism of this arm is controlled as follows. That is, when the intermediate store rotates for unloading in the direction opposite to the arrow 18 and the conveyor belt 16 moves in the direction opposite to the arrow 19, the deflection device 20 slides slowly towards the column 2; Then, before the lifting and lowering of the support device 5, the deflection device 120 is controlled to move out of the container 1. For unloading, the deflection device 20 is slowly slid towards the column 2, and the arrow 18 The small parts on the tray 4 rotating in the opposite direction hit the deflection device 20 and are guided towards the slit 1c and reach the conveyor belt 16.

In this case, it is particularly advantageous if the slidable arm is provided with a conveyor belt (not shown), which conveys the parts placed on it towards the slide. After unloading the small parts, the deflection device 2
0 is slid outwards out of the container l. Thereby, when the support device 5 is raised and lowered in order to unload the next tray 4, the deflection device 20 does not get in the way.

When loading small parts into the intermediate storage, i.e. when the intermediate storage is in a device that acts as a loading station, at the beginning of loading the empty intermediate storage is placed in the uppermost position as shown in Figure 3. It is advantageous to form the control device in such a way that it is placed in the same position. When the motor 6 rotates the tray 4 in the direction of the arrow 18 and the small parts 21 are guided by the conveyor belt 16, the guide rocker 17 is swung onto the tray 4 to be loaded. Accordingly, the small parts 21
slides toward the support column 2 against the guide rocking rod 17, so that the loading tray 4 can be loaded. ! ! After the loading of the tray 4 has ended, i.e. after an adjustable time has elapsed, the conveyor belt 16 is stopped and the guide rocker 17 is swung back to its original position, i.e. to the outside of the container 1; The support device 5 is then lowered by the distance of the tray 4. Thereafter, the second tray 4 is similarly loaded. This operation is repeated until all the trays have been loaded, and then all drives are switched off and, if necessary, light signals etc. are emitted. The full intermediate reservoir is then transported to another location by forklift 12 and a new empty intermediate reservoir is installed in the loading stage sink.

At the unloading station, unloading takes place in the opposite manner.

First, the intermediate storage is rotated in the direction opposite to arrow 18 and the conveyor belt 16 is driven in the direction opposite to arrow 19. The deflection device 20 is slowly inserted between the trays 4 through the slider 4, so that starting from the small parts on the outer edge of the tray 4, all the small parts are inserted into the deflection device 20.
along it to the area of the slit 1c and from there to the conveyor belt 16. When the deflection device 20 is inserted up to the column 2 and the tray is rotated so that all small parts 21 are carried away from the tray 4 -
This time can be predetermined by means of a time relay - the deflection device 20 is retracted into its original position, ie to the outside of the container 1, and the support device 5 is lifted by the spacing of the tray 4.

The unloading process is then repeated for the second pan. When the entire intermediate storage is empty, all drives are stopped and, if necessary, a signal is issued so that the empty intermediate storage can be replaced by a fully loaded intermediate storage.

[Brief explanation of the drawing]

FIG. 1 is a side view of the loading and unloading station with the intermediate storage in the initial position shown in solid lines and the intermediate storage in the raised position shown in dash-dotted lines; FIG. Plan view of the loading and unloading station with the intermediate storage in the lower half without the storage and in the upper half with the intermediate storage installed; Figure 3 shows the intermediate storage fully raised; FIG. 2 is a partial cross-sectional view of the loading and unloading station of FIG.

Claims (1)

[Claims] 1. A container for storing and transporting small parts (21), consisting of a substantially cylindrical container (1) having a large number of rotatable mounting plates (4) arranged vertically at intervals. At the unloading station for intermediate storage, one vertical slit (
1c) is formed on the outer peripheral wall (1a) of the container, and through this slit it is possible to load and place the small parts (21) on the mounting tray (4) and to carry out the small parts from the mounting tray. Yes, the mounting plate (4) is fixedly connected to the support (2) at the center, and the container (1) is attached to the container (1) together with the support plate (4) and the support (2).
1) and can be lowered from the support device (5), which supports the container (1). It is equipped with a rotation drive means (6) for the support column (2) for rotating the support column (2) in a state in which the support device (2) is rotated, and a support device (
5), the control device (14, 1
The lifting device (10) with 5a) is the supporting device (5)
A deflecting device (20) is attached to the slit (1c) for guiding the small parts (21) on the rotating tray (4) towards and through the slit (1c). The slit (1 c
) towards the column (2), such that the deflection device (20) moves out of the range between the trays (4) before raising and lowering the support device (5). And when the column (2) rotates for unloading, the deflection device (
An unloading station characterized in that the sliding mechanism of the deflection device (20) is configured such that the deflection device (20) slides between the trays (4) up to the column (2). 2. A patent characterized in that a conveyor belt (16) is provided for supplying small parts (21) to a slit (1c) formed in the outer peripheral wall (1a) of the container or for carrying them out from the slit. An unloading station according to claim 1. 3. Unloading station according to claim 1, characterized in that an adjustable time relay is provided for initiating the stepwise raising and lowering of the lifting device (5).