JPH04121324A - Linear motor type conveyance device - Google Patents

Abstract

PURPOSE:To allow waiting action of carriers to be performed easily, efficiently and in short time by providing waiting passages for making the carriers temporarily wait or sidetrack passages which run parallel with part of a main passage so that they may by engaged/disengaged freely therewith. CONSTITUTION:When a carrier 2 conveys cargo along a passage 1 between points A and C while, for example, loading or unloading of a transfer device 4 at a point B is performed, the carrier 2 conveys cargo to the point C through a sidetrack passage 12 which branches bypassing the point B. When conveyance from a point G to a point D occurs simultaneously with conveyance from the point D to the point G, a carrier 2 departing from the point G conveys cargo along the loop passage 1, while the other carrier 2 departing from the point D conveys cargo along a sidetrack passage 12. In order to more a carrier 2 from the loop passage 1 into the a waiting passage 11 or into the sidetrack passage 12, a split-formed change-over passage 13 is turned horizontally and connected to the waiting passage 11 or the sidetrack passage 12.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses a carrier equipped with a running path on which a secondary stator is attached and a secondary stator to transport objects placed on the carrier on the running path. 0 [Prior Art] Figures 4 to 6 show a conventional linear motor type conveying apparatus of this type, and in the figures, 1 indicates a loop. 2 is a carrier guided and moved along the running path L;
3 is an object to be transported loaded on the carrier 2, and 4 is an object to be transported, which is transported by the carrier 2, to the carrier 2.
5 is a control device for controlling the carrier 2 and the transfer device 4, and 6 is a primary side fixed to the traveling path 1. A stator 7 is a secondary stator attached below the carrier 2 in correspondence with the primary stator 6, and 8 is a secondary stator attached to the carrier 2 in order to smoothly move the carrier 2 along the running path 1. The cam follower 9 attached to the cam follower 9 is a nut that fixes the cam 7 follower 8 to the carrier 2.

In this conventional system, when transporting the transported object 3 from point A to point E, the waiting carrier 2 is first moved to point A.
- Check whether there is another carrier 2 being transported between point E, and if there is, wait until the transport is completed, and after the transport is completed, travel path IB of the carrier 2 waiting for this carrier 2 -
Have them wait outside point E.

Next, the waiting carrier 2 is moved to a large location. Thereafter, the transferred object 3 is moved to the carrier 2 by the transfer device 4, and the carrier 2 is moved to point E. At this time, if there is another carrier 2 on the travel path 1 between A and E, it is moved aside, in the same way as when the waiting carrier 2 is moved. The overall control of these plurality of carriers 2 is performed by the control device 5.

[Problem to be solved by the invention]

This conventional linear motor type transport device is configured as described above, so before transporting, it is first checked whether or not other carriers are within the transport travel path, and if there is, it is moved outside the transport area. Carriers need to be evacuated. Furthermore, if another carrier is delivering or transporting the transported object using a transfer device, it is necessary to wait until the operation is completed, which wastes time and requires multiple carriers. When trying to move carriers, there were problems such as complicated control that required shibra lock to avoid collisions between the carriers.

The present invention was made to solve these problems, and by providing a branched running path on the running path, the waiting area of the carrier is made into a waiting area, and the waiting operation of the carrier is facilitated. Moreover, it should be done efficiently in a short period of time.

In addition, by coating the travel path with a gold film that partially branches into the travel path, it is possible to simultaneously move multiple carriers that interfere with each other within the travel area, and the evacuation operation can be performed easily and efficiently in a short time. .

[Means to solve the problem]

In the IJ near-motor type conveyance device according to the present invention, a plurality of carriers each having a secondary stator arranged opposite to a primary stator provided on the main traveling route are arranged so as to be guided along the main traveling route. However, in the case where objects to be transported are delivered to these carriers by a transfer device and the carrier and transfer device are collectively controlled by a control device, there is a standby running path or #i main running path where the carrier is temporarily on standby. An evacuation running path parallel to a part of the road is installed so that it can be inserted into and removed from the main running path.

[Effect]

The standby travel path or evacuation travel path in this invention is
Since it is disposed so that it can be inserted into and removed from the main travel path, the carrier can be put on standby or withdrawn easily in a short period of time, and the efficiency of the transport device is improved. An example will be explained based on FIGS. 1 and 2.

That is, in FIGS. 1 and 2, 11 is a waiting path branching from the loop-shaped driving path l, 12 is an evacuation path branching from the loop-shaped driving path 1, and 13 is a loop-shaped driving path. A loop-shaped running road 1 and a waiting running road 11 or an evacuation running road 1 are formed by being divided from the road 1 and rotated in the horizontal direction.
2. This is the switching route that is used to switch between the two routes. The rest of the structure is the same as the conventional one shown in FIGS. 3 to 6, so the explanation will be omitted.

With this configuration, the carrier 2 that is not transporting an object and is waiting for an instruction waits on the standby travel path 11. Next, when transporting the transported object 3 from point A to point C, the carrier 2 on the standby travel path 11 closest to point A is moved to point A. Thereafter, the transported object 3 is received from the transfer device 4 at point A, and transport to point C is started.

At this time, if another carrier 2 is being transported on the travel path l between points A and 0, for example, if the transfer loading &4 and the receiver of the transported object 3 are being handed over at point B, The vehicle is then conveyed to point C through the evacuation travel path 12 that branches off. In addition, if transport from point C to point C and transport from point C to point C occur at the same time, the carrier 2 that departed from point C will follow the loop-shaped travel path l, and the carrier 2 that departed from point C will evacuate. Conveyance is carried out through the travel path 12.

Here, when the carrier 2 enters the waiting travel path 11 or the evacuation travel path 12 from the loop-shaped travel path 1,
This is accomplished by horizontally rotating the divided switching travel path 13 and switchingly connecting it to the standby travel path 11 or the evacuation travel path 12.

In this embodiment, a loop-shaped linear motor type conveyance device has been described, but the same effect can be achieved with a linear motor type conveyance device having a shape other than a linear type or a loop type.

〔Effect of the invention〕

As described above, the linear motor type conveyance device according to the present invention has a standby travel path or an evacuation travel path that can be inserted into and removed from the main travel path, so that carrier standby or evacuation can be done in a short time. Since this can be done easily, the efficiency of the conveying device is improved.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are diagrams showing one embodiment of this invention,
Figure 1 is a layout diagram, Figure 2 is a plan view of main parts, Figures 3~
Fig. 6 is a diagram showing a conventional linear motor type conveyance device of this kind, Fig. 3 is a layout diagram, Fig. 4 is a perspective view of main parts, and Fig. 5 is a diagram showing a conventional linear motor type conveyance device.
The figure is a plan view of the main part, and FIG. 6 is a sectional view of the main part. In the figure, 1 is a loop-shaped travel path, 2 is a carrier, 3 is an object to be transported, 4 is a transfer device, 5 is a control device, 6 is a primary side stator,
7 is a secondary stator, 8 is a cam follower, 11 is a standby travel path, 12 is an evacuation travel path, and 13 is a switching travel path.

Claims (1)

[Claims] It has a main running path on which a primary stator is attached, a secondary stator provided opposite to the primary stator of this main running path,
A plurality of carriers arranged to move while being guided along the main travel path, a transfer device that transfers objects to the plurality of carriers, and a control device that centrally controls the transfer device and the carriers. characterized in that a standby running path for temporarily waiting the carrier or an evacuation running path parallel to a part of the main running path is removably inserted into the main running path. Linear motor type conveyance device.