JPH01192615A - Conveyor device - Google Patents

Abstract

PURPOSE:To shorten cycle time, in a vertical transfer conveyor device, by arranging carry-in/out conveyor means and a lifter for lifting/lowering a carrying material between the conveyors and a pair of endless travelling bodies below having enlargable/shrinkable interval. CONSTITUTION:The interval between a pair of travel bodies 3 can be enlarged/ shrinked between a narrow interval for carrying a material W while supporting and a wide interval through which the material W passes. In such arrangement, the material W is carried by means of the endless member 3 set to the narrow interval. A lifter 4 is lifted, as required, to the level of the endless travel body 3 in order to receive the material W onto the lifter 4, thus enlarging the interval of the endless travel body 3. Then the lifter 4 is lowered to the level of a conveyor 5 so as to transfer the material W onto the conveyor 5. The material W is transferred from the conveyor 5 to the endless travel body 3 in reverse sequence.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a conveyor device, and particularly to a conveyor device for vertical transfer.

(Prior art and its problems) Conventionally, as shown in FIG. Transfer conveyor device f
a is an endless running body f, f such as a chain or belt
It was configured to move up and down as shown by arrows A and B in the figure, together with rotating guide wheels g, g, etc. such as chain wheels and belt wheels that drive and guide it.

That is, at the raised position indicated by the solid line in the figure, the upper conveyor line a
The object e to be transported is received from the lower conveyor line C, and then the endless traveling body f, f itself is lowered as shown by arrow B, stopped at the same position as the lower conveyor line C, and the object e to be transported is moved to the lower conveyor line C. After that, the empty traveling bodies f and f are raised as shown by arrow A and restored to the original position indicated by the solid line, and this operation is repeated.

In such a conventional configuration, endless running bodies r, r
There is a problem in that the cycle from when the carrier receives the transported object e of i until it receives the next transported object e becomes unnecessarily long.

[Means for solving problems]

In order to solve such problems, the present invention includes a pair of endless running bodies having a predetermined length and arranged parallel to each other when viewed from above, and the distance between the endless running bodies is set so that the distance between the endless running bodies is equal to the distance between the objects to be transported. The endless traveling body is indirectly attached to the guide member and the endless traveling body is attached to the guide member indirectly, and the pair of endless traveling bodies is set to a narrow width that supports the lower surface of the body and a wide width that allows the transported object to pass vertically. A conveyor means is provided which opens and closes the traveling body and carries out or carries in the conveyed object at a position below the endless traveling body, and the conveyor means is moved up and down between the conveyor means and the endless traveling body to carry out the conveyed object. A lifter for moving the wheel downward or upward was provided between the endless running bodies when viewed in plan.

[Function] If the distance between the pair of endless traveling bodies provided above is set to a narrow value, the transported object can be received while being supported from the lower surface thereof.

When the lid is raised from below, the transported object supported and supported by the endless traveling body is slightly lifted and held. When the distance between the pair of endless traveling bodies is increased by the opening/closing drive mechanism to a wide value, the object to be transported is lowered by the lifter to the conveyor means below and carried out by the conveyor means.

Alternatively, the transported object carried in by the lower conveyor means is lifted up by a lifter, raised between a pair of endless running bodies whose distance has been increased to a wide value by an opening/closing drive mechanism, and then opened/closed. The drive mechanism closes the width to a narrow value, and by slightly lowering the lifter, the object to be transported is placed on the endless traveling body. As the endless traveling body travels, the objects to be transported are transported to the upper conveyor line.

In this way, the objects to be transported are transferred from the upper conveyor line to the lower conveyor line, or vice versa, from the lower side to the upper side.

Since the distance between the pair of endless running bodies is usually narrow, it is possible to receive or hold the transported object.

〔Example〕

The illustrated embodiment will be described in detail below.

1 to 6 illustrate the basic configuration of the present invention, and illustrate the basic configuration of the present invention, and also include FIGS. 1, 2 - 3, 4 - 5, 6 - 1, Fig. 2...The operation is repeated in sequence.

That is, the conveyor device l according to the present invention is provided corresponding to the downstream end 2a of the upper conveyor line 2, and includes a pair of relatively short chains of a predetermined length that are arranged parallel to each other when viewed from the top.
It is equipped with an endless running body 3.3 such as a belt or a lobe, and has a lifter 4 between the pair of endless running bodies 3.3 when viewed in plan, and further includes an upper conveyor line extending from a position below the endless running body 3.3. 2, a conveyor means 5 is provided as a lower conveyor line.

6.6 is a rotating wheel such as a chain wheel, belt pulley, or pulley that suspends the endless running body 3, and one of the rotating wheels 6.6 is driven by a motor or the like, and the other is freely rotatable. .

W... indicates objects to be transported, and the objects are tentatively numbered as Wl, W2, Wa, etc. in the order in which they are sent to the conveyor device 1.

The lifter 4 is composed of a mounting table 7 made of a rectangular plate and a fluid pressure cylinder 8 for raising and lowering the mounting table 7 as shown by arrows C and D.

The interval dimensions of the endless running bodies 3.3 are a narrow width S that supports the lower surface of the transported object W as shown in Fig. 2, and a wide width that allows the transported object W to pass downward as shown in Fig. 4. Value is variable.

Further, a stopper 9 is provided at the downstream end 2a of the upper conveyor line 2.
is attached.

The operation of such a conveyor device 1 will be explained in order. First, as shown in FIGS. 1 and 2, the distance between the left and right pair of endless running bodies 3.3 is at the narrow width value S. In the - state, the stopper 9 is released and the transported object W2 is moved from the downstream end 2a of the upper conveyor line 2 to
It is supplied to the endless running body 3.3.

Next, as shown in FIGS. 3 and 4, the fluid pressure cylinder 8
The piston rod extends and the mounting table 7 rises in the direction of arrow C, lifting the transported object W by a small distance H from the endless traveling body 3.3 and making it float. Immediately, the endless running bodies 3, 3 move in the direction of arrows E, E, and the distance increases as the width increases. If the width dimension of the transported object W is W, then 3<w<L ......■The narrow width value S and the wide width value are set so that the above Φ formula holds,
As the lifter 4 is shortened, the transported object W can be lowered in the direction of the arrow as shown in FIGS. 5 and 6 without interfering with the pair of left and right endless running bodies 3.3.

When the mounting table 7 of the lifter 4 passes the standby point F shown in Fig. 6, it is detected by a sensor or a limit switch, and the endless running body 3.3 is moved from the imaginary line to the solid line in the figure ( in the direction of arrow G) to restore the narrow width value S (closed state). Then, as shown in Figs. 1 and 2, the endless traveling body immediately receives the next transported object W, 3. Payment can be made in 3. On the other hand, the object W on the lifter 4 is shown in FIGS. 5 and 6 to 1 and 1.
It is transferred to the lower conveyor means 5 as shown in FIG.

That is, FIGS. 1 and 2 show the state in which the beam lid 4 has descended to the bottom dead center, but before the mounting table 7 reaches this bottom dead center, the lower conveyor, which is constantly running, The transported object W is transferred to the means 5.

In addition, the stopper 9 is in an upright state in the states shown in FIGS. 3 and 5, and serves to temporarily stop the object W to be transported later.

Further, if the width dimension of the mounting table 7 of the lifter 4 is y, then y
<3 Set so that

FIG. 7 shows an example of application of the above-mentioned FIGS. 1 to 6, in which a pair of devices having the structures shown in FIGS. 1 to 6 are arranged symmetrically. However, the operation of the left half is opposite to that of the right half, and moves the objects W from the lower conveyor means 5 to the upper conveyor line 2. That is, the upper conveyor line 2 and the conveyor means 5 are disposed vertically in parallel when viewed from the side, and the latter is set longer than the former, and the endless running body configured as described above is placed at the left and right ends. 3. Conveyor device consisting of 3 pans and lids 41. 1 are provided respectively, and the transported objects W are circulated as shown by the arrows in the figure. Therefore, the conveyor device 1 at the left end in FIG.
In this case, the conveyor means 5 is for carrying in the transported object W, and the lifter 4 moves the transported object W upward (in the direction of arrow C).

In addition, in the turning shown in FIG. 8, the conveyor means 5, which corresponds to the lower conveyor line, is arranged in the same direction as the upper conveyor line (as is obvious when compared with FIG. 1).

Next, FIGS. 9 to 11 are diagrams specifically illustrating the main parts of the configuration of the present invention. The endless running body 3 is a chain 3a with rollers 10, 10..., and a pair of front and rear rotating wheels 6.6 are chain wheels 6a + 5 rotatably pivoted around spindles ri and ``ti''. a applies.

Reference numeral 12 denotes a peripheral frame body having a rectangular shape in plan view and having a rectangular window portion 13, and a pair of left and right vertical beams 14, 14 having an inverted letter-shaped cross section.
and a strip-board crossbeam 15.15 bridging the front and rear ends of the longitudinal girder 14.14 on the left and right, and via brackets 16 fixed to the crossbeam 15°15, A guide member 17.17, such as a round bar, is provided above the crossbeam 15.15.

A slide member 19.A cylindrical boss portion 18 is fitted onto the guide member 17 via a slide bearing or the like so as to be slidable in the axial direction. '19 is fitted externally, and the slide member 19
. . . is a total of 4 pieces, 4 of the rectangular surrounding frame 12.
placed in the corner.

Reference numerals 20 and 21 denote vertical members for guiding the chain, which are provided vertically in parallel, and the front and rear ends of each are provided with fasteners 22 and 22 such as bolts.
At..., install the mounting piece 2 of the slide section ++19.19.
3.23 is fixed.

Further, the support shaft 11 is fixed to the mounting piece 23 of the slide member 19, and the chain wheel 6a is rotatably pivotally connected via the bearing, and the chain wheel 6a is attached to the pair of front and rear chain wheels 6a, 6a endlessly. A chain 3a serving as a running body 3 is suspended. 26.2
Reference numeral 6 denotes a drive motor, and the support shafts 11.11 on the rear end side are connected to each other so as to be rotationally driven by the drive motors 26.26, or serve also as the output shafts of the drive motors 26.26. .

This drive motor 26 is attached to the mounting piece 23 of the slide member 19.
Attach to. In FIG. 10, reference numeral 25 denotes an opening/closing drive mechanism consisting of a fluid pressure cylinder, which is attached along the front and rear cross beams 15.degree. 15, and is connected to four slide members 19, respectively.

By telescoping the opening/closing drive mechanism 25..., the slide member 19.19, the chain guiding vertical member 20.21, the chain wheels 6a, 6a, and the chain 3a are integrated into one body as shown by arrows E and G. , open and close. In other words, the endless traveling body 3.3 is indirectly attached to the □ guide member 17 via the □ rotation shaft 6, the support shaft 11, and the slide member 19, and the endless traveling body 3.3 is attached to the □ guide member 17 via the The endless running body 3.3 is opened and closed.

In addition, a conveyed object guide band 26 is attached to the chain guide vertical member 20, 21 by fixing devices 27, as a member that opens and closes as a unit when it is rotated.

In this way, as shown by the solid lines in FIGS. 9 and 10, the interval dimension of the endless traveling bodies 3.3 is adjusted to the narrow width value S for supporting the transported object W from the bottom surface, and the width value S for supporting the transported object W from the bottom surface. It is variable in width to allow the conveyed object W to pass in the vertical direction (via the window 13), and is configured to be opened and closed by an opening/closing drive mechanism 25.

Note that a stopper cylinder 28 is provided to regulate the stopping position of the transported object W to the position indicated by the imaginary line in FIG. Furthermore, low-friction slide receiving pieces 29 and 30 are fixed to the upper surface of the chain guiding vertical member 20°21.

In addition, in the present invention, i! ! The object to be transported W is not limited to what is generally called a work, but can also be removably attached to a fi.
It may also be a pallet or the like. Also, the opening/closing drive mechanism 2
5 may be one using a screw shaft and a NAND, or one using a link mechanism.

When one cycle time of the product according to the present invention was actually measured, the following results were obtained.

■ Receiving process of transported object W 4 seconds ■ Traveling object 3.3
Opening process 0.5 seconds ■ Lowering process of lifter 4
2 seconds ■ Closing process of traveling body 3.3 0.5 seconds Therefore, in the present invention, the objects W can be received one after another in a cycle of 7 seconds in total.

For comparison, when the conventional product (FIG. 12) is used, one cycle time is as follows.

■Receiving process of transported object e 4 seconds ■Descent process of traveling body f 4 seconds ■Discharging process from traveling body f to the lower conveyor line 4 seconds ■Ascending process of traveling body r 4 seconds Therefore, the total of 16 seconds with the conventional product It was also on.

It can be seen that the present invention significantly shortens the vertical transfer operation cycle.

〔Effect of the invention〕

The heavy endless running bodies 3.3 are at the same height (without being raised or lowered), and only the distance between them needs to be opened and closed, so the drive means can be small and small in capacity, and furthermore, It is possible to quickly restore the state in which the object W to be operated is received and held.

Accordingly, a significant reduction in cycle time can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a simplified side view showing an embodiment of the present invention and explaining the receiving process, Fig. 2 is a front view thereof, Fig. 3 is a simplified side view illustrating the beam-lid lifting process, and Fig. 4 is the same. A front view, FIG. 5 is a simplified side view of the beam lid lowering process, FIG. 6 is the same front view, FIG. 7 is a simplified side view showing an applied example, and FIG. 8 is a simplified side view showing another embodiment. FIG. 9 is a detailed plan view of the main part, FIG. 1O is a sectional view thereof, and FIG. 11 is an enlarged sectional view of the main part. FIG. 12 is a simplified side view of a conventional example. 3... Endless running body, 4... Lifter, 5...
- Conveyor means, 17... Guide member, 25... Opening/closing drive mechanism, W... To be transported, S... Narrow width value, L.
...Wide value. Figure 1 Figure 3! Figure 2 Figure 4 Figure 1E5 Figure O

Claims (1)

[Claims] 1. A pair of endless running bodies of a predetermined length are arranged parallel to each other when viewed from above, and the interval dimension of the endless running bodies is a narrow width value for supporting the lower surface of the transported object and a width value for supporting the lower surface of the transported object. The endless traveling body is indirectly attached to the guide member as a variable width value that allows the transported object to pass in the vertical direction, and the pair of endless traveling bodies are opened and closed by an opening/closing drive mechanism, and the endless traveling body is variable. A conveyor means for carrying out or carrying in the transported object is provided at a lower position, and a lifter for moving the transported object downward or upward by moving up and down between the conveyor means and the endless running body is provided in a two-dimensional manner. A conveyor device characterized in that it is provided between the endless running bodies.