JPH0628485Y2 - Stock shelving device with quick-return type vibration feeder system - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is installed alongside an assembly line of, for example, an automobile or the like, and the automobile parts or the like are placed in an optimum position for an assembly worker without excess or deficiency. The present invention relates to a quick-return type vibrating feeder type stock rack device that is preferably used as a stock rack for supplying components.

Conventional technology Conventionally, a stock box installed along an automobile assembly line was used to place a transport box containing automobile parts, and to keep its own weight on the rail with rollers and rollers inclined forward and downward. It is configured to be used to sequentially feed the assembly workers. However, in this case, it is necessary to return the empty transport box one by one, which is very troublesome for an operator who is busy assembling the assembly line work.

Therefore, in recent years, it has become common to mount automobile parts directly on stock shelves and supply them without using a transport box (referred to as "Minami sink"). However, in the case of this method, there is a problem that the rail with rollers or rollers rather hinders the smooth forward movement of automobile parts having complicated shapes. Therefore, a stock shelf was recently developed that uses a resin-coated metal pipe formed as a sliding rail with a uniform cross-section in the longitudinal direction at the contact part with the object to be transported with a synthetic resin such as nylon with good sliding properties as a shelf material. It is becoming popular.

When using the above-mentioned transport box, the slide rail of the shelf for returning the empty transport box is moved forward at an angle at which the transport box slides down only by the action of its gravity. If you place it on a downward slope,
The height of the shelf is required in proportion to the size of the inclination angle of the slide rail, and the height of the entire shelf device becomes large, which causes a problem of impairing workability.

In addition, in the case of the method of placing and transporting the objects to be transported (automobile parts) directly on the stock shelves (only sink), while a small amount of auto parts still remain on the slide rails to the stock shelves. Even if the next object to be transported is placed at a sufficient distance, if the slipperiness of the slide rail is good, it immediately catches up with the previous part and becomes a string of beads, in which case the car parts collide with each other. There is a problem that it may get damaged or get caught. Therefore, in order to match the usage situation of automobile parts, the inclination angle of the rail of the stock shelf is made as small as possible to reduce the sliding speed, and it is also used with the configuration that the automobile parts slip or do not slip or slip at the thread. Has been. However, although the stock shelves are in good condition while they are new, it is difficult to keep the slidability constant due to the deterioration and wear of the surface of the slide rails when used for a long time, and the transported object stops in the middle of the stock shelves. Sometimes it happens. In other words, it is practically impossible to maintain the situation where the transported object finally slides at the slippery whether it slides on the slide rail shape or not, and these points become problems to be solved. Is there.

Means for Solving the Problems As means for solving the problems of the above-mentioned conventional technology, a stock shelving device of a quick-return type vibrating feeder system according to the present invention is at least an object to be transported 1 as shown in the embodiments in the drawings. A plurality of shelves 3 formed on a sliding rail 2 having a uniform cross-section in the longitudinal direction at a contact portion with a slippery synthetic resin are slid down by the gravity of the transported object placed thereon. The planar stock shelves 4 are arranged in parallel with the transporting direction of the transported object with a forward inclination of an angle not to be formed and are configured in multiple stages and multiple rows. Moreover, the shelf 3 is supported so as to be reciprocally movable with a constant stroke in the axial direction. Further, each of the shelves 3 is configured to be driven so as to vibrate in its axial direction by a quick-return type vibration device. The object 1 is moved by repeating the operation of advancing the object 1 by the slow forward vibration of the shelf 3 and retreating only the shelf material while leaving the object 1 at the forward position by the backward return vibration of the fast return. It is characterized in that it is moved forward along the shelf 3.

Action As long as there is no inclination of the required angle, the object to be transported 1 does not slide on the shelf material by itself due to its gravity action.

The shelf member 3 to which the quick return type vibration of the vibrating device is transmitted makes a fast return type reciprocating linear motion (fast return type vibration) in the axial direction. Therefore, the transported object 1 placed on the slide rails 2 of the shelf material 3 under the condition that it does not slide only by its own gravity action can be used while the shelf material 3 slowly moves forward (forward stroke vibration). Moves forward in the direction of arrow A (FIG. 2) together with the shelf 3 without causing slippage. However, due to the effect of the stationary inertia of itself or the motion inertia at the time of forward movement and the good sliding property of the slide rail 2 in the rapid retreat (vibration of the forward return stroke) of the shelf material 3, the end position of the forward travel step is In other words, the shelf material 3 is left behind and only the shelf material 3 moves backward. Then, in the next slow forward movement, the transported object 1 repeatedly moves forward together with the shelf 3 again and surely moves forward little by little. Therefore, when the transported object 1 is placed on the shelf 3 at a predetermined interval in advance, the transported objects move forward while maintaining the interval.

Embodiment Next, an embodiment of the present invention shown in the drawings will be described.

FIG. 1 conceptually shows a stock rack device, which is composed of three-stage stock racks 4 ... And a top return rack 8 in multiple stages and multiple rows. Three-tiered stock shelves 4 ...
Is configured with a forward-downward inclination of an angle at which the transported object 1 placed on it does not naturally slide down only by the action of gravity. The uppermost return rack 8 is configured substantially horizontally so that a used empty box (empty transport box) generated on the stock shelf 4 can be returned in the opposite direction shown by an arrow B (FIG. 2). . As shown in FIG. 2, each of the stock shelf 4 and the return shelf 8 is a nylon with good slipperiness for a part of the synthetic resin coated on the outer periphery of the thin-walled steel pipe (contact part with the object to be transported 1). ,
A resin-coated metal pipe having a slide rail 2 formed in a uniform cross section in the longitudinal direction by filling a synthetic resin such as polyethylene is used as the shelf member 3. A plurality of shelving materials 3 ... Are arranged in parallel with the transportation direction (arrow direction) of the object to be transported 1 at appropriate intervals, and are planar stock shelves 4.
And the return rack 8 is configured. Each of the above-mentioned shelving materials 3 constituting the stock shelves 4 ... and the return shelves 8 has its axial direction (transportation of the transported object 1) using a slide bearing or the like with respect to the frame 10 (FIG. 1) of the stock shelving device. Direction), and is supported so that it can reciprocate only linearly (the supporting portion is not shown).

Next, on the base 11 at the lower part of the stock rack device, the quick-return type vibrating device shown in detail in FIG. 2 is installed.
The illustrated one is a mechanical vibration device to which a cam mechanism is applied. A geared motor (rotating machine) 5 in which the rotation speed of the output shaft is reduced to about 60 RPM is installed, and a groove cam 6a, which is a driving node of a cam mechanism 6, is attached and fixed to the output shaft. As shown in FIGS. 3 and 4, the specific shape and cam curve of the grooved cam 6a are obtained by using a 3/4 rotation angle (about 270 °) of one rotation for the displacement in the forward stroke, and It has a fast-return configuration in which four rotation angles (about 90 °) are used to change the return stroke.

On the other hand, the cam follower 6b, which is a driven node, inserted in the groove of the groove cam 6a and the transmission shaft 7 coupled to the cam follower 6b are
As shown in the figure, the slider 13 is fixed on the base 11 and slides along an upright guide rail 12, and is integrally formed. Only about 30 to 4 parallel to the guide rail 12.
It is supposed to reciprocate linearly with a stroke of about 0 mm.

Thus, the transmission shaft 7, which is linearly reciprocated in the vertical direction, is provided with an arm 14 projecting in a direction perpendicular to the axis as shown in FIG. On the other hand, a crank 17 is attached and fixed to a rotary shaft 16 horizontally supported by a rotary bearing 15 on the frame member 10 so as to be rotatable only, and the crank 17 and the arm 14 of the transmission shaft 7 are pinned to each other. Are connected by. Therefore, the linear reciprocating motion of the transmission shaft 7 is
It is transmitted as a reciprocating rotary motion of the rotary shaft 16. A crank member 21 is fixed to the rotary shaft 16, and a crank pin 20 that engages with the crank member 21 is provided on the shelf 3 in a protruding manner. Thus, the shelf material 3 is approximately 1 in the axial direction.
It is linearly reciprocated (vibrated) with a stroke of about 0 mm. In particular, because of the fast-return type configuration of the cam mechanism 6, the shelf member 3 slowly advances the object to be conveyed 1 in the direction of the arrow A, and leaves the object to be advanced at the forward limit position to leave the object 1 for quick return. Since it repeats, the to-be-conveyed object 1 is reliably advanced in small increments. Reference numeral 30 in the figure denotes a dead end stopper for the object 1 to be conveyed, which is provided at the front end of the shelf material 3.

Next, on the transmission shaft 7, the fulcrum pin 2 is attached to the frame member 10.
One end of a lever 23, whose intermediate portion is swingably supported by 2, is connected by a pin 24. One end of the intermediate lever 31 is connected to the other end of the lever 23 by a pin 25. The other end of the intermediate lever 31 has a rotary shaft 2 rotatably supported by a rotary bearing 28 also fixed to the frame member 10.
Nine cranks 27 are connected by pins 26. Therefore, the linear reciprocating motion of the transmission shaft 7 is also converted into rotary reciprocating motion and transmitted to the rotary shaft 29. However, since the lever 23 and the intermediate lever 31 intervene in particular, the rotary reciprocating motion opposite to the rotary shaft 16 for the stock rack described above is transmitted to the rotary shaft 29. The crank member 21 is also attached and fixed to the rotary shaft 29, and the crank pin 20 protruding from the shelf member 3 forming the uppermost return shelf 8 is engaged. That is, the shelf material 3 that constitutes the stock shelf 4
As described above, the downward-sloping forward stroke indicated by arrow A in FIG. 2 is performed at a slow speed, and the transported object 1 is left behind by the fast-return return stroke.
Is moved in small increments in the direction of arrow A. However, the shelf material 3 that constitutes the uppermost return shelf 8 performs a forward stroke at a slow speed in the leftward horizontal direction indicated by an arrow B in FIG. 2 and leaves an empty box by a fast return stroke. Then, the empty box is moved forward little by little in the direction of arrow B. Therefore, the return rack 8 functions to return the empty box to the left in FIG. Therefore, when the worker located on the right side of the stock rack device in FIG. 1 uses up the car parts in boxes that have been transported rightward on the stock shelves 4 ... of each stage, the worker will use the empty boxes. This is convenient because it is possible to return the empty box by merely replacing the upper box with the return rack 8.

The quick-return type vibration device is not limited to the mechanical mechanism of the cam mechanism application described above, but is similarly implemented by using a slider mechanism type, a slider crank mechanism type, an electromagnetic application type, a fluid pressure application type, or the like. can do.

Advantageous Effects of the Present Invention As described in detail above together with the embodiments, according to the stock shelving device of the quick-return type vibration feeder system according to the present invention, the transported object placed on the stock shelf 4 is conveyed. 1 is
"Mimigashi" if it is boxed or not boxed
However, since it can be reliably transported while smashing the fast-return type vibration as transport pressure, there is no difficulty in adjusting the tilt angle of the rail or adjustment due to secular change, and for example, automobile parts for automobile assembly lines, etc. It is convenient to be able to reliably supply the required amount.

Moreover, the objects to be transported 1 placed on the stock shelves 4 at certain intervals are always transported with the intervals maintained,
Since it does not cause troubles such as collisions of the objects to be carried with each other and damage, or troubles of being entangled with each other and releasing the objects, it is most suitable for carrying out the "only-flow" transport method.

Furthermore, the stock shelf device of the present invention does not require particularly large power, can be used with almost no noise, and there is no difficulty in setting the inclination angle of the shelf member 3, and the shelf member 3 is extremely horizontally arranged. However, since it can be implemented, it is easy to design, manufacture and adjust. In addition, if the inclination of the rail is reduced, the height of the entire shelving device can be reduced, and it can be widely used for transporting various objects to be transported having different friction coefficients, so that the application range is wide.

[Brief description of drawings]

FIG. 1 is a side view conceptually showing a simplified structure of a stock rack device according to the present invention, FIG. 2 is a perspective view showing a structure of a quick return type vibration system, and FIGS. 3 and 4 are It is the front view and cam curve figure of a cam mechanism. DESCRIPTION OF SYMBOLS 1 ... Object to be transported, 2 ... Sliding rails 3 ... Shelf material, 4 ... Stock shelf 5 ... Rotating machine (geared motor) 6 ... Cam mechanism, 7 ... Transmission shaft

Claims (1)

[Scope of utility model registration request] 1. A plurality of shelves (3) formed on a slide rail (2) having a uniform cross section in the longitudinal direction at least at a contact portion with a transported object (1) by a synthetic resin having good slipperiness The object to be transported is placed in parallel with the transport direction of the object to be transported at an angle that does not allow it to slide down only by the action of gravity, and the planar stock shelves (4) are arranged in multiple stages and in multiple rows. Moreover, the shelf material (3) is supported so that it can only reciprocate with a constant stroke in the axial direction, and each shelf material (3) is further supported by a quick-return type vibration device. It is configured to be driven to vibrate in the direction, the forward movement of the shelf material (3) is advanced by the forward stroke vibration of the shelf material (3), and the backward movement vibration of the fast return moves the transported object (1). It is possible to move the transported object (1) forward along the shelf (3) by repeating the operation of retracting only the shelf while leaving it at the forward position. Stock shelving system of early return type vibration feeder system to the butterflies.