JPH01192610A - Pallet direction converter - Google Patents

Abstract

PURPOSE:To eliminate loss of carrying time and to achieve smooth carriage, in a pallet direction inverter for carrying free-flow pallet, by comprising a drive shaft with a tubular shaft, a spindle type shaft and a joint for transmitting rotation, then pressure contacting a drive roller at the side of carrying body therewith. CONSTITUTION:A tubular shaft 23 is coupled with a spindle type shaft 18 having the curvature face of identical curvature to that of a direction inverting path and arranged in tangential direction of the direction inverting path, through a joint 28 for transmitting rotation, to form a drive shaft. A drive roller 17 arranged on a pallet 16 is pressure contacted with the outside of the drive shaft to guide a lateral regulation roller 21 through a guide rail 29. By such arrangement, the pallet 16 is driven through the spindle type shaft 18 and the drive roller 17, and carried smoothly with no loss while being guided by the guide rail 29.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a pallet direction changing device for changing the traveling direction of a pallet in a conveying device mainly used as a free-flow pallet conveying conveyor.

BACKGROUND OF THE INVENTION Among the above-mentioned pallet turning devices, a particularly versatile one is a 180' turning device at both ends of a conveyor that circulates pallets on the same plane.

A first example of a conventional 180' direction changing device will be described below with reference to the drawings.

In FIG. 4, 1 is a pallet, 2a and 2b are conveyors, and guides 3a and 3b, respectively.

It has drive shafts +a and 4b, and conveys the pallet 1 in directions A and B. 5a, sb are 90' direction changing devices,
Each has guides 6a, 6b and drive shafts 7a, 7b,
Rotate 90 degrees in the direction C9D around the fulcrums 8a and 8b. 9 is a splicing conveyor, and guide 10. Drive shaft 11
has.

In the 18oO direction changing device configured as described above, when the pallet 1 is conveyed to the end of the conveyor 2a, it is transferred to the 90° direction changing device 6a, converted 90', and then conveyed to the splicing conveyor 9. Further, the sheet is transferred to the 90° direction changing device 6b, where the 90° direction is changed, and then conveyed to the conveyor 2b, where the 180° direction change is completed.

Next, a second example will be explained based on FIG. It has a cylindrical shaft 12 that is divided and fixedly held along the middle part in the width direction of the pallet direction conversion path, and a joint part 12a that is jointed so that each of these shafts can be bent and can transmit rotation.

The structure is such that when rotational drive is applied to any one of the divided cylindrical shafts 12, all the shafts rotate. A driving roller 14 is attached below the pallet 13, and when this driving roller 14 is pressed against the cylindrical shaft 12 from above, a forward thrust is generated by the action shown in Japanese Patent Publication No. 52-45568. , guide rail 15a.

However, in the configuration of the first conventional example described above.

The structure is complicated because two 900 direction change devices 5a, 5b and the splicing conveyor 9 are required, and while the 900 direction change devices 5a, 5b process one pallet 1, the other pallets 1 are processed by the conveyor 2a, 2b, and continuous direction changes are not possible, resulting in a loss in transportation time.In the second conventional configuration, there is a problem of the lightweight pallet floating up and the pallet being lowered downward. The problem was that the shaft was blocked by the drive shaft.

In view of the above problems, the present invention has a simple structure and is inexpensive,
By processing pallets continuously without having to wait, there is no loss in transportation time, and even lightweight pallets can be transported smoothly.

The drive shaft closes the space below the pallet.

A pallet that does not cause any trouble in handling the pallet.The present invention solves the problems of the conventional example. It has a guide rail that guides and supports the main body, and a drive shaft that rotates while being in pressure contact with the drive roller and is disposed along the guide rail, and the support angle of the drive roller is set such that the axis of the drive roller is In a conveyance device configured to intersect diagonally and three-dimensionally with respect to the axis of a drive spindle-shaped shaft and to convert rotational force of the drive shaft into propulsive force of a conveyed object via a drive roller, the drive shaft , with a cylindrical shaft.

A plurality of spindle-shaped shafts having a surface of curvature that is the same as the radius of curvature of the direction-changing path and arranged in a tangential direction of the direction-changing path, and a bendable transmission member that connects the cylindrical shaft and the spindle-shaped shaft and can transmit rotation. The present invention comprises a drive roller which is attached to the lower surface of the conveyed object and whose support angle can be variably set and is arranged so as to face to the side, and the drive roller has a cylindrical shaft and a spindle shape. Since it is configured to press against the side surface of the shaft, even if the conveyed object is light during pressure contact, it can be prevented from lifting up, and since a spindle-shaped shaft is arranged in the direction conversion path, , Smooth movement is possible even when the drive roller is pressed against the side. Moreover, since the spindle-shaped shaft arranged along the guide rail can be arranged on the side of the drive roller facing sideways, the space below the conveyed object is freed, and the conveyed object can be easily handled. This also increases the degree of freedom in design. Further, by pressing the driving roller and the driving spindle-shaped shaft, the position of the conveyed object in one lateral direction can be regulated, and only the position in the other lateral direction can be regulated by a guide roller or the like. That's fine. Therefore, the structure can be simplified. Therefore, with a simple and inexpensive configuration, it is possible to continuously change the direction of the pallet by 18 degrees without making it standby, and no loss occurs during conveyance.

Embodiment An embodiment in which the present invention is applied to a conveyor for conveying 7-leaf pallets will be described with reference to the drawings.

Fig. 1 shows an overall outline of a pallet direction changing device according to an embodiment of the present invention, and Fig. 2 shows partial details of the same device. Fig. 3 shows a cross section of the same device including a pallet. In the figure, 16 is a pallet, 17 is a drive roller, and 21 is a horizontal adjustment roller, which is pressed against a guide rail 29 by a stroke spring 22 of the drive roller 17.

, 23 is a cylindrical shaft at both ends, and 24 is a rotating principle machine.

26 is a drive belt from the prime mover 24 to the straight shaft 23, 18 is a spindle-shaped shaft, 27 is a bearing that supports the drive spindle-shaped shaft 26, and 28 is a rotation transmission joint portion that connects the drive spindle-shaped shafts.

The operation of the pallet direction changing device configured as above will be described below.

The pallet 16 is conveyed from the direction A to the pallet direction changing device by a drive roller 17 pressed against the cylindrical shaft 23 from the side at an angle of 450°. In a pallet direction changing device.

The rotary motor 24 rotates the cylindrical shaft 23 via the drive belt 25, rotates the spindle-shaped shaft 18 jointed by the joint part 28, and the rotation is transmitted one after another until it rotates to the cylindrical shaft 23 in the direction of B. is conveyed. This results in a force of 45 G against the spindle-shaped shaft 18.
The pallet 16 is moved to the side guide rail 2 by the horizontal regulating roller 21 by the driving row 217 that rotates while tilting and pressing.
It is conveyed while being supported by 9 and the direction is changed. After the direction change, the pallet 16 passes through route B and returns to the conveyor.
is being transported.

Effects of the Invention As described above, the present invention includes a cylindrical shaft held at both ends of a conversion path of a pallet direction conversion device, and a drive shaft.
A spindle-shaped shaft is divided and held along the pallet direction conversion path, and a bendable transmission member that connects each of the divided spindle-shaped shafts and the cylindrical shaft is capable of transmitting rotation, and the cylindrical shape By making the drive roller come into pressure contact with the shaft and spindle-shaped shaft from the side, a space is created below the pallet, and the structure is simple and can accommodate lightweight pallets, making it possible to change the direction of the pallet at a simple and inexpensive price. Since the pallet can be changed direction by using the machine, there is no loss in transportation time, which is very effective.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a schematic plan view of a pallet direction changing device according to an embodiment of the present invention, Fig. 2 is a partial detailed view of the device, and Fig. 3 is a partial sectional view of the device. Figure 4. FIG. 5 is a schematic plan view of a conventional pallet direction changing device. 16... Pallet, 17... Drive roller,
18... Spindle-shaped shaft, 24... Rotation prime mover, 28... Rotation transmission shield section. Name of agent: Patent attorney Toshio Nakao and one other person If
--Ha0resL 26---Turning table t4 for 1 minute ¥ 2nd drawing 8 Figure 3 Figure 4

Claims (1)

[Claims] A conveyed object having a drive roller whose support angle can be set variably is attached to the lower surface of the conveyed object body, a pair of left and right guide frames that guide and support the conveyed object, and a guide frame that rotates while being in pressure contact with the drive roller and guides the conveyed object. and a drive shaft disposed along the frame, and the support angle of the drive roller is set so that the axis of the drive roller diagonally intersects the axis of the drive shaft, and the drive shaft is rotated. In a conveying device configured to convert a force into a propulsive force for a conveyed object via a drive roller, the drive shaft has a cylindrical shaft, a surface of curvature that is the same as the radius of curvature of the direction conversion path, and a direction It is composed of a plurality of spindle-shaped shafts arranged in the tangential direction of the conversion path, and a bendable transmission member that connects the cylindrical shaft and the spindle-shaped shaft and can transmit rotation, and the driving roller is connected to the cylindrical shaft. and a pallet direction changing device, characterized in that the pallet direction changing device is disposed facing the side so as to press against the spindle-shaped shaft from the side.