JP4773840B2 - Vertical conveyor - Google Patents

Description

  The present invention relates to a vertical conveyor that continuously conveys articles in the vertical direction, and more particularly to a vertical conveyor for conveying lightweight articles in a manufacturing process or the like.

  In a distribution center or the like, a vertical transporter that continuously transports articles in the vertical direction is often required to transport the articles while holding the articles horizontally. That is, there are many things to be transported in an orderly manner such as a cardboard box or the like, and it is not allowed to fall or invert during the transportation process. In this respect, it is different from a vertical conveyor such as a bucket conveyor that conveys irregular shaped loose objects.

  For example, Patent Document 1 introduces such a vertical transfer machine. That is, as shown in FIG. 6, this vertical transfer machine 80 is an endless strip 82 that is stretched in a box-shaped frame 81 and is stretched around a ring group consisting of two upper rings and two lower rings. And a plurality of transport stands 83 held by an endless body circulate in the frame 81 and rise and fall.

  The endless strip 82 in this case is configured by a pair of inner chains that confront each other in the frame 81 and a pair of outer chains that confront each other outside the inner chain. That is, the plurality of circulating transport tables 83 are held by four chains. Therefore, this vertical conveyance machine can also convey heavy objects of 100 kg or more.

  However, in recent years, in a manufacturing process or the like, there has been a demand for a vertical transporter for transporting a lightweight object of 10 kg or less, and in some cases, a vertical transporter for transporting a light object of 1 kg or less. For this reason, it has been found that the conventional vertical transfer machine as described above increases the cost and is not appropriate.

Further, in the manufacturing process and the like, the speed of conveyance is further required. As described in Patent Document 1, it is effective to increase the speed by narrowing the interval between the carriages attached to the chain. However, the load receiving platform used for delivery of the conveyed product needs to be horizontal when delivering the conveyed product and vertical when passing the conveying table. That is, it is necessary to repeat horizontal and vertical every time the transport table passes. Therefore, narrowing the interval between the transport tables is greatly restricted by the load receiving table.
JP-A-11-208811

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an economical vertical conveyance machine that is suitable when a conveyed product is lightweight. At the same time, it is to provide a vertical transfer machine capable of speeding up the transfer.

In order to solve the above-described problems, a vertical transfer machine according to a first aspect of the present invention includes an upper two ring bodies and a lower part 2 in a box-shaped frame provided with a carry-in port and a carry-out port on the front side. In a vertical transfer machine comprising a plurality of endless strips stretched around a ring group consisting of individual ring bodies, and a plurality of transport stands held by the endless strips circulate in the frame and rise and fall; The plurality of endless strips are opposed to a first endless strip that is stretched around a first ring body group provided at a front portion in the frame, and a first ring body group at a rear portion in the frame. A second endless strip stretched around a second ring body group provided as a third wheel, and a third wheel provided at a position rearwardly moved to the left or right of the second ring body group and a third endless strip material is stretched to the body group, the conveying table of the loading platform is load carrying-machine to be inserted from the transportable inlet mouth And a loading platform of the unloader inserted from the unloading port, and a concave shape, a convex shape, or a comb-tooth shape that meshes with each other. Thus, a means for continuously conveying the conveyed product is employed.

According to a second aspect of the present invention, there is provided the vertical conveyor according to the first aspect, wherein the upper one ring body of the third ring body group is the second ring body group. A method is used in which the upper ring body is opposed to the front and rear. According to a third aspect of the present invention, there is provided the vertical conveyor according to the second aspect, wherein three rings facing the front and rear at the upper part of the frame are attached to the same rotating shaft. Adopting means. Furthermore, a vertical conveyor according to claim 4 of the present invention, in the vertical transfer machine according to any one of claims 1 to 3, said frame, said first endless strip body and the third endless A means having a guide for supporting the strip is adopted .

  By employing the above-mentioned means, the vertical transfer machine of the present invention can transfer a lightweight transfer object while holding it horizontally, and can transfer it economically. Further, since the carry-in port and the carry-out port are provided on the front surface of the box-shaped frame, the speed of conveyance can be increased.

  Examples of the present invention will be described below with reference to FIGS. 1 to 5, but these figures do not limit the present invention in any way. FIG. 1 is a schematic perspective view showing an example of the vertical transfer machine of the present invention, FIG. 2 is a schematic front sectional view, and FIG. 3 is a schematic side sectional view. FIG. 4 is a schematic plan cross-sectional view showing an example of attachment of a transport table, and FIG. 5 is a schematic perspective view showing an example of a guide.

  In the vertical transfer machine 1 of the present invention, a plurality of transfer stands 20 held by three endless strips 31, 32, 33 are circulated and raised and lowered in a box-shaped frame 10. The endless strips 31, 32, and 33 are respectively stretched around a ring body group 40, 50, and 60 that includes two upper and two lower rings.

  That is, the first ring body group 40 includes an upper left wheel body 41, an upper right wheel body 42, a lower right wheel body 43, and a lower left wheel body 44, to which the first endless body 31 is stretched. It is built. The second wheel body group 50 includes an upper left wheel body 51, an upper right wheel body 52, a lower right wheel body 53, and a lower left wheel body 54, to which a second endless body 32 is stretched. It is built. The third ring body group 60 includes an upper left wheel body 61, an upper right wheel body 62, a lower right wheel body 63, and a lower left wheel body 64, to which a third endless strip 33 is stretched. It is built.

  The four rings constituting each ring group need not necessarily have the same diameter, but are preferably the same diameter because the apparatus is simplified. In order to stretch the endless strip, it is necessary to arrange the plate surfaces of the four rings in the same vertical plane. The arrangement of the ring bodies is not particularly limited as long as it is a substantially square shape, but it is preferable that the stretched endless strips are horizontal in the upper and lower parts and vertical in the left and right sides due to simplification and strength of the apparatus.

  For this reason, also in the example shown in the figure, the four ring bodies of each ring body group have the same diameter and are arranged in a rectangle on the same vertical plane. For example, in the first wheel group 40, the upper left wheel body 41 and the upper right wheel body 42 are horizontal, the upper right wheel body 42 and the lower right wheel body 43 are vertical, and the lower right wheel body 43 and the lower The left wheel body 44 is disposed horizontally, and the lower left wheel body 44 and the upper left wheel body 41 are disposed vertically.

  The first ring body group 40 is provided at the front portion in the frame 10. In addition, the second ring body group 50 is provided at the rear portion in the frame 10 so as to face the first ring body group 40. The ring bodies constituting the first ring body group 40 and the ring bodies constituting the second ring body group 50 do not necessarily have the same diameter and do not necessarily have the same arrangement. In order to simplify the apparatus, it is preferable to have the same arrangement with the same diameter.

  The endless strip 31 stretched on the first ring body group 40 and the endless strip 32 stretched on the second ring body group 50 do not necessarily have the same length. For simplicity, it is preferable to have the same length. Further, the fact that the first ring body group 40 and the second ring body group 50 face each other does not necessarily mean that they overlap each other, but for simplification of the device, the ring body 41 and the wheel group 50 are not necessarily overlapped. The body 51, the ring body 42 and the ring body 52, the ring body 43 and the ring body 53, and the ring body 44 and the ring body 54 are preferably arranged so that their axes are on the same line.

  Further, the third ring body group 60 is provided in the frame 10 at a position behind the second wheel body group 50 and moved to the left or right of this. The ring bodies constituting the third ring body group 60 do not necessarily have the same diameter as the ring bodies constituting the first or second ring body group 40, 50, and have the same arrangement. Although not necessary, in order to simplify the apparatus, it is preferable to have the same arrangement with the same diameter.

  The endless strip 33 stretched around the third ring group 60 is also necessarily the same length as the endless strips 31, 32 stretched around the first or second ring group 40, 50. Although not necessary, it is preferable to have the same length in order to simplify the apparatus. The position of moving to the left or right with respect to the second wheel group 50 is not particularly limited, but for simplification of the device, it is preferable to move at the same height, and between the axes of the left and right wheels. It is preferable to move by a distance equal to the distance.

  If it does in this way, one upper ring body of the 3rd ring body group 60 will face one upper ring body of the 2nd ring body group 50 back and forth. That is, as shown in the figure, when the third wheel body group 60 is moved to the right side of the second wheel body group 50, the upper left wheel body 61 and the second wheel of the third wheel body group 60 are moved. The upper right wheel body 52 of the body group 50 can be confronted. Further, when the third ring body group 60 is moved to the left side of the second wheel body group 50, the upper right wheel body 62 of the third wheel body group 60 and the upper part of the second wheel body group 50. The left wheel 51 can be confronted.

  As described above, since the second ring body group 50 is provided opposite to the first ring body group 40, the upper one ring body of the third ring body group 60 is the second ring body group. When facing the upper ring body of the ring body group 50 in the front-rear direction, these also face the upper ring body of the first ring body group 40. For example, in the case shown in the figure, the upper right wheel body 42 of the first wheel body group 40, the upper right wheel body 52 of the second wheel body group 50, and the upper left wheel body of the third wheel body group 60. 61 will face back and forth.

  Therefore, these three ring bodies 42, 52, 61 facing the front and rear at the upper part of the frame 10 can be attached to the same rotating shaft 70. Then, by rotating the rotary shaft 70 with a power source (not shown), the three endless strips 31, 32, 33 can be circulated at the same speed at the same time. Although the endless strips 31, 32, and 33 can be driven by different drive sources, the apparatus is only complicated. The rotating shaft 70 can rotate in either direction. For example, in the figure, when rotating clockwise as viewed from the front surface of the frame 10, the transport table 20 rises on the left side of the frame 10 and descends on the right side.

  As shown in FIG. 4, the carriage 20 includes a support member 21 that connects the first endless body 31 and the second endless body 32, a second endless body 32, and a third endless body 33. A support member 22 to be tied, a loading platform 23 on which articles are placed, and the like are integrally formed. And the support material 21 and the support material 22 are attached with respect to each endless strip 31, 32, 33 so that rotation is possible. Further, the loading platform 23 is disposed so as not to interfere with the endless states 31, 32, 33 during circulation. Therefore, the loading platform 23 attached horizontally can be circulated while maintaining the level.

  The shape of the loading platform 23 of the conveyance table 20 is preferably selected in accordance with the shape of the loading platform of the carry-in machine and the unloading machine that delivers the conveyed product, and is preferably a concave shape or a comb-like shape as shown in FIG. In other words, in the case of a concave type, the mating carrier is made convex to mesh with this, and in the case of a comb-like shape, the mating carrier is made into a comb-like shape that meshes with this, and the conveyed product is delivered at the portions meshed with each other. .

  The vertical transfer machine 1 of the present invention is characterized in that the loading platform of the loading platform and the unloading platform can be directly approached to the loading platform 23 of the conveyance platform 20. That is, as shown in FIG. 4, the dent of the concave loading platform 23 is directed to the front surface of the frame 10. Further, the front side of the transport table 20 does not have any constituent members such as a support material. Therefore, the loading platform of the loading machine and the unloading machine can be inserted up to the center of the loading platform 23.

  As a result, the vertical transfer machine 1 according to the present invention includes a carry-in port and a carry-out port for a conveyed product on the front surface of the frame 10, from which the loading platform and the loading platform of the unloader are directly approached. And since the receiving stand provided conventionally is not required, the attachment space | interval of the conveyance stand 20 can be narrowed, and the speed of conveyance can be aimed at.

  In transporting a lightweight object, the transported object placed on the cargo bed 23 is easily moved by a small vibration or shaking of the transport table 20. Therefore, the endless strips 31, 32, and 33 are preferably steady, and a guide is preferably provided in the frame 10 as appropriate. And in the vertical conveyance machine 1 of this invention, it is preferable from a shape characteristic of the conveyance stand 20 to provide a guide so that the two strips located farthest may be supported.

  That is, as shown in FIG. 4, in the frame 10, the guide 11 that supports the first endless strip 31 and the third endless strip 33 are supported on each of the rising portion and the lowering portion of the transport table 20. It is particularly preferable to provide the guide 12. An example of the guides 11 and 12 is shown in FIG. As a result, the vertical conveyance machine 1 of the present invention can reliably convey a lightweight object while preventing vibration and shaking.

It is a schematic perspective view which shows an example of the vertical conveying machine of this invention. Similarly, it is a schematic front sectional view. It is a schematic side sectional view. It is a schematic plane sectional view which shows the example of attachment of a conveyance stand. It is a schematic perspective view which shows an example of a guide. It is a schematic front sectional view showing a conventional vertical transfer machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,80 Vertical conveyance machine 10,81 Frame 11,12 Guide 20,83 Carrying base 21,22 Support material 23 Loading platform 31 1st endless strip 32 2nd endless strip 33 2nd endless strip 40 1st Ring body group 41, 51, 61 Upper left wheel body 42, 52, 62 Upper right wheel body 43, 53, 63 Lower right wheel body 44, 54, 64 Lower left wheel body 50 Second wheel body group 60 3rd Wheel body group 70 Rotating shaft 82 Endless strip

Claims (4)

A plurality of endless strips stretched around a ring body group consisting of two upper rings and two lower rings in a box-shaped frame provided with a carry-in port and a carry-out port on the front; In a vertical transfer machine in which a plurality of transfer stands held by an endless body circulate in the frame and rise and fall,
The plurality of endless strips are opposed to a first endless strip that is stretched around a first ring body group provided at a front portion in the frame, and a first ring body group at a rear portion in the frame. A second endless strip stretched around a second ring body group provided as a third wheel, and a third wheel provided at a position rearwardly moved to the left or right of the second ring body group It consists of a third endless strip that is stretched across the body group,
The conveying table of the loading platform comprises a loading platform of the unloading machine to be inserted from the loading platform and the unloading port of the loading machine to be inserted from the transportable entry mouth is formed into a concave shape, convex or comb-like mutually meshing,
A vertical transfer machine characterized in that the carrier is continuously conveyed by delivering the conveyed product at a portion where the carrier of the carrier is engaged with the other carrier.   2. The vertical conveyance according to claim 1, wherein the upper one ring body of the third ring body group is opposed to the front one wheel body of the second ring body group. Machine.   The vertical conveyor according to claim 2, wherein three rings facing the front and rear in the upper part of the frame are attached to the same rotating shaft.   The vertical conveyance machine according to any one of claims 1 to 3, wherein the frame includes a guide for supporting the first endless strip and the third endless strip. .

Images