JP4538422B2 - Transfer machine - Google Patents

Description

  The present invention relates to a transfer machine that loads and / or unloads a conveyed product with respect to a vertical transfer machine, and more particularly, to a transfer machine that reduces a shock during transfer.

  In a distribution center or the like, various transport machines are used, but in many cases, articles are transported while being held horizontally. Therefore, when conveying articles in the vertical direction, a type of vertical conveyance machine is used in which a plurality of horizontally held trays circulate in the frame and rise and fall. Moreover, the transfer machine which carries in or carries out a conveyed product with respect to such a vertical conveying machine is used (for example, patent document 1).

  In the transfer system described in Patent Document 1, a plurality of comb-shaped carrier stands are capable of delivering a conveyed product to a vertical conveyor that continuously circulates between a carry-in passage and a carry-out passage. The device is used. This feeding device is provided with a load receiving base formed in a comb-teeth shape and an operation mechanism for allowing the load receiving base to enter and exit from a conveyor path. And in the channel | path, the comb teeth of a conveyance stand and the comb teeth of a load receiving stand mutually mesh | engage.

  Therefore, in the carry-in passage where the transport table rises, when the load receiving platform having the transported material placed on the upper side of the approaching transport table is entered into the passage, the transported material is transferred from the load receiving table to the transport table. . Further, in the carry-out passage where the transfer table descends, when the load receiving table is inserted below the transfer table on which the transfer object is placed, the transfer object is transferred from the transfer table to the load receiving table.

  In recent years, however, it has been required to transport fragile articles in manufacturing processes and the like. At the same time, speeding up of conveyance and transfer has been required. In the transfer system described above, the delivery of the transported goods is performed between the stationary cargo receiving table and the transport table moving in the vertical direction. Is inappropriate. And, as the speed of the ascending or descending transport table increases, the impact at the time of transfer increases, so there is a problem that the speed cannot be increased.

Furthermore, the above-described transfer system includes a pusher device for transferring the conveyed product from the station to the receiving platform of the feeding device. Therefore, when delivering a conveyed product between a vertical conveyance machine and a horizontal conveyance machine, there exists a problem that only this sending device is inadequate.
JP-A-11-208811

  Accordingly, an object of the present invention is a transfer machine that carries in and / or unloads a transported object to / from a vertical transporter that transports the transported object on a tray and transports it in the vertical direction. To provide fewer transfer machines. Another object of the present invention is to provide a transfer machine capable of speeding up the transfer speed of the vertical transfer machine and the transfer time of the transfer machine. Furthermore, it is providing the transfer machine which can be mutually transferred between a vertical conveyance machine and a horizontal conveyance machine.

  In order to solve the above-described problems, a transfer machine according to claim 1 of the present invention carries in and / or unloads a transported object with respect to a vertical transport machine that transports the transported object in a vertical direction on a tray. A transfer machine for carrying out a projecting body having a loading platform at a tip end portion thereof and moving in and out of the vertical transfer machine, a lifting body provided with a driving device for moving the projecting body in a horizontal direction, and the lifting body. And a base having a driving device for moving in the vertical direction, and means for moving the carrier in the same direction as the tray when transferring the transported object.

  The transfer machine according to claim 2 of the present invention is the transfer machine according to claim 1, wherein the relative speed between the tray and the loading platform is set to 10 to 50 mm / mm when the transported object is transferred. A means to set seconds is adopted. Moreover, the transfer machine which concerns on Claim 3 of this invention employ | adopts the means whose drive device of the said raising / lowering body is a drive device using a ball screw in the transfer machine of Claim 1 or 2. . A transfer machine according to claim 4 of the present invention employs a transfer machine according to any one of claims 1 to 3, wherein the driving device of the base is a driving device using a ball screw. ing. A transfer machine according to claim 5 of the present invention is the transfer machine according to any one of claims 1 to 4, wherein a horizontal transfer machine is provided integrally with the base, and the horizontal transfer machine and the vertical transfer machine are provided. Means capable of transferring the transported object to and from the transport machine is employed. Moreover, the transfer machine which concerns on Claim 6 of this invention employ | adopts the means whose said horizontal conveyance machine is a roller conveyor in the transfer machine of Claim 5.

  The transfer machine of the present invention is a transfer machine that carries in and / or unloads a transported object to / from a vertical transporter that transports the transported object on a tray in the vertical direction, and adopts the above-described means. Thus, a transfer machine with less impact when transferring can be obtained. Moreover, it can be set as the transfer machine which can be mutually transferred between a vertical conveyance machine and a horizontal conveyance machine. Furthermore, it can be set as the transfer machine which can aim at the speed-up of a conveyance speed and transfer time.

  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 transfer machine of the present invention, FIG. 2 is a schematic perspective view showing an example of the transfer machine of the present invention in which a horizontal transfer machine is integrally attached, and FIG. It is the schematic front view (a), schematic plan view (b), and schematic side view (c) of the transfer machine shown. FIG. 4 is a schematic perspective view showing the relationship between the transfer machine and the vertical transfer machine of the present invention, and FIG. 5 is a schematic plan view showing an example of the tray of the vertical transfer machine.

  As shown in FIG. 4, the transfer machine 1 according to the present invention is to carry in and / or carry out a transported object with respect to the vertical transport machine 50. The target vertical transfer machine 50 moves up and down in a state in which the tray 51 on which the article is placed is held horizontally, and any projecting body 10 of the transfer machine 1 described later can enter the interior thereof. It can also be used with this type of conveyor.

  The vertical conveyor 50 shown in the figure is provided with three endless strips 53 stretched around four ring bodies 52, and a tray 51 on which articles are placed is attached to these endless strips 53. Each ring body 52 has the same diameter, and each endless strip 53 has the same length. Then, the endless strips 53 are circulated at the same speed, so that the trays 51 are circulated through the inside of the vertical conveyance device 50 while being horizontally held, and are raised and lowered.

  The transfer machine 1 is provided close to one surface of the vertical transfer machine 50, and the loading platform 11 of the transfer machine 1 enters and exits from this surface. Hereinafter, this surface is referred to as “front surface” for convenience. As shown in FIG. 5, the tray 51 is supported by the endless strip 53, but no support member or the like that prevents entry of the loading platform 11 is used on the front surface, so the loading platform 11 enters the path of the tray 51. be able to. And the shape of the tray 51 is made into a concave shape, and it meshes | engages with the convex loading platform 11 mutually. Note that the shapes of the tray 51 and the loading platform 11 may be comb-like shapes that mesh with each other.

  In the vertical transfer machine 50, one of the left and right sides can be a carry-in passage where the tray 51 rises, and the other side can be a carry-out passage where the tray 51 descends. When the transfer machine 1 of the present invention is installed so as to enter / exit into the carry-in passage, the transfer machine 1 becomes a transfer machine 1 that carries articles into the vertical transfer machine 50, and is installed so as to enter / exit into the carry-out path. In this case, the transfer machine 1 is configured to carry the article out of the vertical transfer machine 50. In FIG. 4, the transfer machine 1 for carrying in and the transfer machine 1 for carrying out are installed at the same level. The transfer machine 1 and / or the transfer machine 1 for carrying out can be installed.

  As shown in FIG. 1, the transfer machine 1 of the present invention includes a projecting body 10 provided with a loading platform 11 at the tip, a lifting body 20 equipped with a driving device and the like for moving the projecting body 10 in the horizontal direction, It is comprised with the base | substrate 30 provided with the drive device etc. which move this raising / lowering body 20 to the orthogonal | vertical direction. Therefore, the loading platform 11 on which the conveyed product is placed can move in the horizontal direction and the vertical direction.

The protruding body 10 preferably moves horizontally with a stroke of 600 to 1500 mm with respect to the lifting body 20 and preferably moves at a speed of 300 to 800 mm / sec. The acceleration is preferably 500 to 2000 mm / (second) ² . The driving device of the lifting body 20 is not particularly limited as long as the projecting body 10 can be moved horizontally, but is preferably a driving device using a ball screw in order to move an accurate distance at an accurate timing. .

The elevator 20 preferably moves vertically with a stroke of 200 to 600 mm with respect to the base body 30 and preferably moves at a speed of 200 to 700 mm / sec. The acceleration is preferably 500 to 1500 mm / (second) ² . The driving device for the base body 30 is not particularly limited as long as the elevating body 20 can be moved vertically, but is preferably a driving device using a ball screw in order to move an accurate distance at an accurate timing.

  The protruding body 10 and the lifting body 20 are configured to move according to a program of a control device (not shown). Moreover, since the accurate position of the raising / lowering tray 51 can be detected by a sensor provided in the vertical conveyance machine 50 or the like, the conveyed product can be transferred to the tray 51 at an accurate timing. Furthermore, since the raising / lowering speed of the loading platform 11 can be set so that the relative speed between the tray 51 and the loading platform 11 is 10 to 50 mm / second, it is possible to transfer the material while reducing the impact on the conveyed product.

  As shown in FIG. 2, the transfer machine 1 of the present invention preferably has a horizontal transfer machine 40 attached thereto. A horizontal transport device 40 shown in the figure is a roller conveyor, and includes a pair of left and right transport units 42 and a support unit 43 each having a plurality of rollers 41. The horizontal transfer machine 40 is arranged so that the transfer unit 42 straddles the protruding body 10 and the lifting body 20 of the transfer machine 1. Further, the vicinity of the end of the transport unit 42 is included in the horizontal stroke range of the loading platform 11, and the level of the roller 41 is arranged to be included in the vertical stroke range of the loading platform 11. Further, a sensor or the like is provided in the transport unit 42 so that the presence or absence of a transported object is confirmed at a predetermined position and used as input information for the control device.

When transferring a conveyed product from the horizontal conveyance machine 40 to the vertical conveyance machine 50, the loading platform 11 operates in the following order. At this time, the tray 51 is raised.
1) It is detected that there is a transported object at a predetermined position of the horizontal transport machine 40.
2) Move directly below the transported object and then ascend to receive the transported object.
3) Move to a predetermined position outside the tray passage and wait for the tray 51 to approach.
4) When the tray 51 is detected, it enters a predetermined position in the tray passage.
5) Move up and transfer at a predetermined speed at a predetermined timing.
6) Return to a predetermined position outside the tray path at a predetermined timing and wait.

When transferring a conveyed product from the vertical conveyance machine 50 to the horizontal conveyance machine 40, the loading platform 11 operates in the following order. At this time, the tray 51 is lowered.
1) It is detected that there is no transported object at a predetermined position of the horizontal transport machine 40.
2) Move to a predetermined position outside the tray path and wait for the tray 51 to approach.
3) When the tray 51 is detected, it enters a predetermined position in the tray passage.
4) Move down and transfer at a predetermined speed at a predetermined timing.
5) Return to a predetermined position above the horizontal transfer machine 40 at a predetermined timing.
6) Lower and transfer the conveyed product to the horizontal conveyance device 40.

  In the transfer machine 1 of the present invention, when loading and / or unloading a conveyed product with respect to the vertical conveyance device 50, the loading platform 11 moves in the same direction as the tray 51, so that the impact received by the conveyed product is reduced. Can do. For this reason, the conveyance speed of the vertical conveyance machine 50 can be increased. Further, it can be integrated with the horizontal transfer device 40 and can be transferred between the vertical transfer device 50 and the horizontal transfer device 40. In this case, the transfer time can be increased.

It is a schematic perspective view which shows an example of the transfer machine of this invention. It is a schematic perspective view which shows an example at the time of providing a horizontal conveyance machine integrally in the transfer machine of this invention. It is the schematic front view (a), schematic plan view (b), and schematic side view (c) of the transfer machine shown in FIG. It is a schematic perspective view which shows the relationship between the transfer machine of this invention, and a vertical conveying machine. It is a schematic plan view which shows an example of the tray of a vertical conveying machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transfer machine 10 Protruding body 11 Loading platform 20 Lifting body 30 Base body 40 Horizontal conveyance machine 41 Roller 42 Conveyance part 43 Support part 50 Vertical conveyance machine 51 Tray 52 Ring body 53 Strip body

Claims (6)

A transfer machine that carries in and / or unloads a transported object with respect to a vertical transporter that transports the transported object on a tray and transports it in the vertical direction,
A projecting body provided with a loading platform at a front end portion thereof, and a lifting body including a driving device for moving the projecting body in a horizontal direction; and a driving device for moving the lifting body in a vertical direction. Having a base with
When transferring the conveyed product, the loading platform moves in the same direction as the tray.   2. The transfer machine according to claim 1, wherein a relative speed between the tray and the loading platform is set to 10 to 50 mm / second when transferring the conveyed product.   The transfer device according to claim 1 or 2, wherein the driving device of the lifting body is a driving device using a ball screw.   4. The transfer machine according to claim 1, wherein the driving device of the base is a driving device using a ball screw.   5. A horizontal transfer machine is provided integrally with the base body, and the transfer object can be transferred between the horizontal transfer machine and the vertical transfer machine. Transfer machine. The transfer machine according to claim 5, wherein the horizontal transfer machine is a roller conveyor.

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