JPS6127857Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a conveying device for pillars and the like.

When conveying objects between facilities with different cycle times, it is necessary to provide a storage line in the middle to create a time delay. Such storage lines are often arranged in the layout shown in FIG. That is, the storage line 1 is arranged lower than the transport lines 2, 2 that follow the storage line 1, and the storage line 1 and the transport line 2 are connected via a chute 3, a lifter 4, and a transfer table 5 in this order. Ru. The transfer table 5 is connected to the transfer line 2
is provided on the same horizontal plane as the conveyance line 2 on the side of the
The objects 6 on the transfer table 5 are selectively transferred to the transfer lines 2, 2 by the pusher 7. Further, the upper surface 8 of the lifter 4 is a flat surface, and at the upper limit of its rise, the upper surface 8 becomes the same horizontal plane as the transfer table 5, so that the transferred objects 6 can be transferred to the transfer lines 2, 2. ing. Since the upper surface has 8 flat surfaces, it is easy to transfer the transported object 6 from the lifter 4 to the transfer table 5, but it is difficult to support the transported object 6 that easily rolls when the lifter 4 has a circular cross section. I can't. On the other hand, the storage line 1 is a slat conveyor, and the chute 3 is arranged at a downward slope toward the lifter 4 in order to ensure the transfer from the slat conveyor to the lifter 4. In other words, since the end of the slat conveyor is wound around rollers and formed into a cylindrical surface,
It is difficult to directly transfer the transported object 6 to the lifter 4. If this transfer is to be carried out without using complicated equipment, the chute 3 will inevitably be required, and if the chute 3 is used, the lowering limit of the lifter 4 will be at a low position, making it difficult to raise and lower the lifter 4. The stroke becomes larger. This increases the size of the lifter 4 and increases the time required to transport the objects 6 from the storage line 1 to the transfer table 5.

This idea was devised to solve these conventional problems.It shortens the time required to transport objects from the previous stage transport line, such as a storage line, to the transport line, and minimized the lifting stroke of the lifter. It is an object of the present invention to provide a conveying device capable of conveying a conveyed object that easily rolls while suppressing the amount of conveyance.

The conveyance device according to this invention is a walking conveyor with an upward slope toward the end of the front conveyance line, and the lower limit of the lifter is set at a high position, and the end of the movable beam of the walking conveyor can enter one lifter in a comb shape. Divide it widthwise like this,
The lifter can be directly transferred from the previous stage conveyance line to the lifter, and furthermore, a recess is formed approximately in the center of the upper surface of the lifter, and this recess is erased at the upper limit of the lift to form a substantially horizontal surface.

Next, a first embodiment of the conveying device according to this invention will be described based on the drawings.

In FIGS. 2 to 6, the conveyance device 9 is
Storage line 1, which is a previous stage transport line, is installed at a lower position than transport line 2.
Transfer the conveyed object 6 from the terminal end 11 to the upper surface 8 of the lifter 4, raise the lifter 4, and at the upper limit of the rise,
The object to be transported 6 is transferred onto a horizontal transfer table 5 at the same height as the transport line 2, and the object to be transported 6 is transferred from this transfer table 5 to the transport line 2.

The storage line 1 is a walking conveyor having a fixed beam 12 and a movable beam 13,
It has an upward slope towards its terminal end 11. A plurality of protrusions 14 are protruded from the upper surfaces of the beams 12 and 13 at intervals, and the protrusions 14 engage with the conveyed object 6, so that the conveyance can be carried out reliably even on an upward slope. Moreover, when the storage line 1 becomes an upward slope, the lower limit of the lifter 4 becomes a high position, and the lifting stroke of the lifter 4 decreases. As a result, the lifter 4 is made smaller and the time required for transporting the transported object in the lifter 4 is shortened.

The lifter 4 is divided in the width direction so that the end of the movable beam 13 can enter the storage line 1 in a comb shape.
The conveyed object 6 can be directly transferred to the lifter 4 without using a chute or the like as in the conventional example. In this respect as well, the lower limit of the lifter 4 is raised, and the size of the lifter 4 and the transport time in the lifter 4 are shortened.

The movable beam 13 as a whole is installed on a rail 15 so as to be movable up and down, and the rail 15 is connected to the hydraulic cylinder 1.
6 in the longitudinal direction of the storage line 1. Bell cranks 17,1 are installed at both ends of the rail 15.
Bell cranks 17 and 18 have support columns 19 and 20 pivoted at their lower ends. The struts 19, 20 are fixed at their upper ends to the movable beam 13, so that the movable beam 13 is raised and lowered by rotation of the bell cranks 17, 18. The other ends of the bell cranks 17, 18 are connected to each other by a connecting rod 21,
On the other hand, a hydraulic cylinder 23 is connected to the bell crank 17 via an arm 22. By rotating the bell crank 17, the hydraulic cylinder 23 also rotates the bell crank 18 via the connecting rod 21, thereby raising and lowering the movable beam 13 on the columns 19 and 20 at the same time. Hydraulic cylinder 16, 2
3 are interlocked with each other, and the movable beam 13 is designed to draw a predetermined rectangular trajectory.

The lifter 4 includes substrates 25, 25 having a V-groove 24 formed on the upper surface, and a pair of swing plates 26, 26 pivotally supported between the substrates 25, 25. By protruding between the grooves 24, 24, the swing plates 26, 26 form a substantially horizontal upper surface on the upper surface of the lifter 4, and the V-grooves 24, 24 can be eliminated. The swing plate 26 has pins 27 at both ends of the upper part of the board 25.
The V-groove 24 is pivoted by the pin 27.
The V-groove 24 is erased in the closer portion 26A.
Also, a portion 2 of the rocking plate 26 opposite to the portion 26A
6B protrudes laterally from the side surface 25A of the substrate 25 in the lowered state in which the V-groove 24 of the portion 26A is not erased. And part 26A is part 26B
When the is pushed between the boards 25, 25, the V groove 2
It is pushed up to erase 4. The transfer table 5 is provided with an opening 28 into which the lifter 4 can enter, and the portions 26B, 26B of the swing plates 26, 26 are inside the opening 28, and the inner surfaces 28A, 28A of the opening 28.
It is pushed into the substrate 25 in contact with. That is,
Since the V-groove 24 of the lifter 4 is not erased in the process of rising from the lower lower limit, it is possible to support the conveyed object 6 in the V-groove 24, and it is possible to support the conveyed object 6 with a circular cross section, etc., which easily rolls. 6 can also be stably supported. When the lifter 4 reaches its upper limit, the swing plate 26 is pressed by the inner surface 28A and the V-groove 24 is erased, so that the upper surface 8 is smoothed and the transfer table 5 of the transported object 6 is It becomes easier to transfer to. The board 25 is fixed onto a rail 29 extending in the width direction of the lifter 4.
9 is a rod 30 protruding downward from both ends;
30, it is guided in the vertical direction. A hydraulic cylinder 31 is connected to the lower surface of the rail 29 between the rods 30, 30, and the lifter 4 is raised and lowered by the hydraulic cylinder 31. The rod 30 is guided in the vertical direction by a bearing 32 to facilitate smooth operation of the lifter 4.

The structure of the upper surface 8 of the lifter 4 is not limited to this embodiment, and a recess such as a V-groove 24 may be formed approximately in the center of the upper surface 8, and this recess may be erased at the upper limit of the lift. For example, various embodiments may be adopted as follows.

(i) As shown in Figure 7, the box 3 opens upwards.
A V-groove 24 is formed in the upper surface 8 of 3, and the elevating plate 34 is housed in the box body 33 so as to be able to rise and fall freely.
The V-groove 24 is erased by. Here is the elevator board 3
A rack is formed on both sides of the box body 33, and a pinion 35 that meshes with the rack is pivotally mounted on the box body 33. On the other hand, a rack 36 that engages with a pinion 35 is formed in the opening 28 of the transfer table 5. Therefore, when the lifter 4 is raised and the pinion 35 is engaged with the rack 36 and rotated, the lifting plate 34 is raised. Then, a substantially horizontal upper surface is formed on the upper surface of the lifter 4 by the elevating plate 34, and the V-groove 24 is eliminated.

(ii) As shown in FIG. 8, the lifter 4 crosses the two support plates 37 in a V shape, and
7 are pivotally supported on their intersecting axes, and the V-shape of the upper surface 8 is used as a recess, in which the conveyed object can be stably supported. An L-shaped engagement piece 38 is provided at the upper end of the support plates 37, 37 to protrude in the side direction of the V-shape.
engages the lower end of the Then, the support plates 37, 37
are pushed out to both sides until the upper surface 8 of the support plate, which is the upper surface of the lifter 4, becomes horizontal, making it possible to transfer the transported object. (Figure 9) Here is the support plate 3.
7 and 37 are biased by a spring 39 so that their upper surfaces 8 form a predetermined V shape, and can sufficiently withstand the load of the transported object.

As mentioned above, the conveyance device according to this invention has a first-stage conveyance line as a walking conveyor with an upward slope toward the end, and the lower limit of the lifter is set at a high position, and one lifter is arranged so that the end of the movable beam of the walking conveyor is in a comb shape. Since it is divided in the width direction so that it can be accessed and transferred directly from the previous stage conveyance line to the lifter, it is possible to shorten the conveyance time of the conveyed object and to minimize the lifting stroke of the lifter. Further, since a recess is formed approximately in the center of the upper surface of the lifter and the recess is erased at the upper limit of the lifter, it is possible to transport objects that are likely to roll.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a conventional conveying device, FIG. 2 is a front view showing a first embodiment of the conveying device according to this invention, FIG. 3 is a right side view of FIG. 2, and FIG. 3
Fig. 5 is an enlarged front view showing the lifter of the same embodiment, Fig. 6 is a sectional view taken along the - arrow line of Fig. 5, and Fig. 7 is a sectional view of the second embodiment. FIG. 8 is a perspective view showing the lifter of the third embodiment, and FIG. 9 is a vertical cross-sectional view showing the lifter at its upper limit. DESCRIPTION OF SYMBOLS 1...Storage line, 2...Transportation line, 3...Chute, 4...Lifter, 5...Transfer table, 6...Transferred object, 7...Bushier, 8...Top surface, 10...Transportation device,
11...Terminal end, 12...Fixed beam, 13...Movable beam, 14...Protrusion, 15...Rail, 16...Hydraulic cylinder, 17, 18...Bell crank, 19, 20...
Post, 21...Connection rod, 22...Arm, 23...
Hydraulic cylinder, 24... V groove, 25... Board, 25A
...side surface, 26... rocking plate, 26A, 26B... portion,
27...pin, 28...opening, 28A...inner surface, 29...
Rail, 30... Rod, 31... Hydraulic cylinder, 3
2... Bearing, 33... Box body, 34... Elevating plate, 35... Pinion, 36... Rack, 37... Support plate, 38... Engaging piece, 39... Spring.

Claims (1)

[Scope of utility model registration request] A pre-stage transport line is arranged lower than the transport line, the object to be transported is transferred from the end of the pre-stage transport line to the upper surface of the lifter, and the lifter is raised until it reaches a horizontal position at the same height as the transport line. In a conveyance device that transfers an object onto a transfer table and transfers the object from the transfer table to a conveyance line, the former conveyance line is a walking conveyor with an upward slope toward the end, The lifter is divided in the width direction so that the end of the movable beam of the walking conveyor can enter in a comb shape, and when the lifter is lowered, a recess is formed approximately in the center of its upper surface, and the recess disappears at the upper limit of the lifter. 1. A conveying device comprising: an upper surface for placing an object to be conveyed, the upper surface of which is a substantially horizontal surface;