JPS62244808A - Cargo shifting device - Google Patents

Abstract

PURPOSE:To enable an upper guide to press a cargo with a suitable timing, by providing springs urging the upper guide downward in the vicinity of both ends. CONSTITUTION:During initial period of movement, the horizontal section of a cam plate 12 is moved, being not in contact with a cam roller 10, but after a while the inclined section of 14 of the cam plate 12 makes into contact with the cam roller 10 so that the spring 20 is compressed while it ascends. Therefore, the cam plate 7 tends to move away from the upper guide 7, but another spring 21 urges the right side end of the upper guide 7 through one end part 17 of the cam plate 12, causing the upper guide 7 to be swung about an upper guide swing shaft 6 as a rotating center. At this time, since the forward end of a cargo 5 has already ridden on a slip-out conveyer 1, a guide roller 8 presses the forward end of the cargo 5 against the slip-out conveyer so that the cargo 5 is shifted onto the slip-out conveyer 1 from a storage rack 25.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is intended for use in automated warehouses, etc., when carrying out or carrying in stored cargo, so that the cargo can be smoothly transferred from storage shelves onto a conveyor or vice versa. This invention relates to a load transfer device that can be moved.

[Prior art] When carrying out cargo stored in an automated warehouse, etc., conventionally, as shown in Fig. 4, the cargo to be carried out is
from the storage shelf towards conveyor C, and this 'vJ
Upper guide e is pressed downward by its own weight and spring d so that a can move onto conveyor C.
Load a is pressed onto conveyor C, the frictional force between load a and conveyor C is increased, load a is pulled onto conveyor C, and load a is transferred from storage@b onto conveyor C.

In addition, as shown in Fig. 5, another conventionally used device is to provide a plurality of rollers F near the tip of the storage shelf to reduce the resistance force when the load a moves on the storage shelf. , when pushing out load a until the tip of load a is on conveyor C,
The tip of load a is pulled toward conveyor C by the frictional force between it and conveyor C, and the tip of load a moves on small rollers f due to the resistance, so that load a can be transferred onto conveyor C. Some did. In FIG. 5, g is a material to prevent cargo a from falling when stored.

Furthermore, conventionally, there are some devices in which a dedicated actuator for the upper guide is used to control the pressurization timing.

[Problems to be Solved by the Invention] In the conventional device shown in FIG. upper guide until h
is pushed down by the spring d, so the upper part of the tip of the load a hits the upper guide C and is pushed back or resistance is applied.
When riding on a person, the front of the upper guide C tends to go down and the resistance increases, so a roller is installed in the pressure part of the upper guide C to change the sliding resistance from rolling resistance so that the resistance in the opposite direction does not increase. It was necessary to do so. Since the direction of pressurization is diagonal, it was necessary to send the pressurization timing as directly downward as possible.

Next, in the conventional apparatus shown in FIG. 5, the price increases as the number of loads a stored on the storage shelves increases, and a mechanism for stabilizing the loads a on the storage shelves is required. Roughly speaking, the method of controlling the timing of pushing the upper guide e downward using a dedicated 7-cut unit has the drawbacks of increasing the number of control points, complicating the structure, and increasing weight and cost.

An object of the present invention is to provide a highly reliable load transfer device that utilizes the function of a conveyor to move in the longitudinal direction so that an upper guide can pressurize a load in a timely manner, and that is simple in structure, lightweight, and highly reliable. It is something to do.

[Means for solving the problems] The present invention provides a sliding conveyor that can move in the longitudinal direction;
Upper guide support posts are installed on both sides of the longitudinal center of the sliding conveyor and move in the longitudinal direction of the sliding conveyor as the sliding conveyor moves in the longitudinal direction. An upper guide that is swingably supported and extends over almost the entire length of the sliding conveyor above the sliding conveyor, and a fixing fixed to the ground on both sides of the sliding conveyor at approximately the center of the longitudinal movement range of the sliding conveyor. A frame, a cam roller attached to the fixed frame and located above the upper guide, and a horizontal part with both ends placed on the upper surface near both ends of the upper guide and located above the cam roller in the center. A cam plate having an inclined part that descends as it reaches both ends to a position lower than the cam roller, an upper spring receiver that slides out from the upper end of the upper guide support post and protrudes toward both ends of the conveyor, and a D of this upper spring receiver.
The load transfer device includes a spring that presses the vicinity of both ends of the upper guide downward via the rj section and the end of the cam plate.

[Function] When the sliding conveyor is at the center of its longitudinal movement range, the cam roller and cam plate do not come into contact with each other, so the upper guide is held horizontally during one operation because it is equally pressed by springs near both ends. movement is prevented. When the sliding conveyor moves in one direction in the longitudinal direction, the cam roller pushes up the cam plate at the position where the load rides on the tip of the sliding conveyor, one spring is compressed and lifted, and the other end of the upper guide is pressed by the other spring. The force causes the load to slide out and press against the conveyor.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a sliding conveyor, and a sliding guide rail 3 is provided in the longitudinal direction below the conveyor frame 2 of the sliding conveyor 1. and 2 along the sliding guide rail 3 in the longitudinal direction.

Upper guide support posts 4 whose lower ends are attached to the conveyor frame 2 are erected on both sides of the longitudinal center of the sliding conveyor 1. At a position slightly higher than the height of the load 5 placed on the sliding conveyor 1, the upper guide 1 driving shaft 6, which extends perpendicularly to the longitudinal direction of the sliding conveyor 1, is attached to the upper guide support bosses 1 to 4. . Above the conveyor 1, there is provided an upper guide 7 having a length spanning almost the entire length of the conveyor 1, and the center of the upper guide 1 is swingably supported by the upper guide swing shaft 6 mentioned above. ing.

Guide rollers 8 are attached to both ends of the upper guide 7 in a direction perpendicular to the longitudinal direction of the sliding conveyor 1.

A gate-shaped fixed frame 9 whose lower end is fixed to the ground and straddles above the upper guide 7 is erected on both sides of approximately the center in the length direction of the guide rail 3 for sliding. A cam roller 10 is attached to the fixed frame 9 via a bracket 11, which is located slightly above the upper guide 7 and extends in a direction perpendicular to the longitudinal direction of the sliding conveyor 1.

Reference numeral 12 denotes a cam plate, and the center thereof is a horizontal portion 13 located above the cam roller 10. Inclined portions 14 and 15 continue from both ends of the horizontal portion 13.
The tip of 15 is a horizontal end 1B, 17 that is lowered one step. The sloped portions 14 and 15 descend from the portion connected to the horizontal portion 13 to the end portions 1B and 17, and are at a position lower than the cam roller 10 at both ends. Ends 16 and 17 of the cam plate 12 are placed on the upper surface of the upper guide 7 near both ends.

From the upper end of the upper guide support post 4, upper spring receivers 18 and 19 are provided to protrude high toward both ends of the sliding conveyor 1. A spring 20.21 of the same specification is provided between the end of the upper spring receiver 18.19 and the ends 16, 17 of the cam plate 12, and the upper end of the spring 20.21 is connected to the upper spring receiver 1.
8.19, and the lower end of the spring 20.21 is supported by the ends 1B and 17 of the cam plate 12, and moves downward near both ends of the upper guide 7 via the ends 1B and 17 of the cam plate 12. It's pressing.

On the upper surface near both ends of the upper guide 7, spring and cam plate holding rods 22 and 23 are provided to protrude upward. .17, passes through the center of the spring 20.21 and the upper spring receiver 18.19 to prevent the spring 20.21 from coming off, and also to prevent the cam plate 12 from coming off.
This prevents the ends 16 and 17 of the upper guide 7 from shifting from the upper surface of the upper guide 7 and falling off.

In the above-mentioned apparatus, when the sliding conveyor 1 is located at the center of the range in which it moves along the sliding guide rail 3 as shown in FIG. The upper guide 7 is in a state where it is not in contact with the upper guide 7, and the upper guide 7 is evenly pressed by the springs 20 and 21, so that it remains horizontal and does not swing. If the load 5 is placed on the sliding conveyor 1 in this state, the height of the upper guide swing shaft 6 is adjusted such that a gap 24 is created between the upper surface height of the load 5 and the lower surface height of the guide roller 8. Set.

When the conveyor 1 moves to the right from the position shown in FIG. 1 and approaches the storage shelf 25 as shown in FIG. As a result, the front end of the load 5 begins to slide out and climbs onto the conveyor 1.

When the sliding conveyor 1 moves, the upper guide support post 4 also moves together with the sliding conveyor 1, but the fixed frame 9 remains stationary. When the upper guide support post 4 starts to slide and moves to the right together with the conveyor 1, the upper guide 7 also remains horizontal and slides toward the cam plate 1.
Move to the right with 2. At the beginning of this move,
The horizontal part 13 of the cam plate 12 is moving to the right without contacting the cam roller 10, but eventually the inclined part 14 of the cam plate 12 comes into contact with the cam roller 10 and is pushed up as shown in FIG. Become.

For this reason, the end 16 of the cam plate 12 compresses the spring 20 and rises, trying to move away from the upper guide 7.
The right end side of the upper guide 7 is pushed down via the end 17 of the cam plate 12 by the pressing force of the other spring 21, so that the upper guide 7
oscillates clockwise around the center. At this time (since the front end of the load 5 has already climbed onto the sliding conveyor 1), the guide 1-ra 8 presses the front end of the load 5 onto the sliding conveyor 1, and By increasing the frictional force, the load 5 is pulled by the sliding conveyor 1 and transferred from the storage shelf 25 onto the conveyor 1.

As the sliding conveyor 1 moves to the left, the upper guide 7 becomes horizontal and separates from the load 5, as shown in FIG. 1, and the grapes 5 are sent to the left by the circulating drive of the sliding conveyor 1.

[Effect of the invention] As shown in Fig. 4, the conventional upper guide sometimes obstructs the load from moving onto the conveyor, but in Fig. 8, the upper guide prevents the load from sliding onto the conveyor. Since the upper guide presses the load, there is an effect that the transfer of the load is not hindered by the upper guide.

Further, as the sliding conveyor moves to the center of the moving range, the upper guide separates from the load, so there is an effect that no frictional resistance is generated between the upper guide and the load against the movement of the load.

The movement of the upper guide utilizes the power of the power source that moves the sliding conveyor, so there is no need for additional electrical control equipment, and since a cam plate is used, the direction of the pressing force and movement can be controlled. Timing can be controlled mechanically, and a device with simple structure, low cost, and high efficiency can be created.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a front view,
FIG. 3 is a side view showing the operating state, and FIGS. 4 and 5 are side views of the conventional device. 1 is a sliding conveyor, 4 is an upper guide support post, 6 is an upper guide swing shaft, 7 is an upper guide, 9
is a fixed frame, 10 is a cam roller, 12 is a cam plate, 1
3 indicates the horizontal part, 14.15 indicates the inclined part, 18.194 indicates the upper spring holder, and 20.21 indicates the spring.

Claims (1)

[Claims] 1) a sliding conveyor that can move in the longitudinal direction; upper guide support posts that are erected on both sides of the longitudinal center of the sliding conveyor and move in the longitudinal direction of the sliding conveyor as the sliding conveyor moves in the longitudinal direction; An upper guide is provided on the upper guide support post, the center of which is swingably supported by an upper guide swing shaft, and extends above the slide conveyor over almost the entire length of the slide conveyor; A fixed frame fixed to the ground on both sides of the sliding conveyor at approximately the center of the moving range, a cam roller attached to the fixed frame and located above the upper guide, and a cam roller with both ends mounted on the upper surface near both ends of the upper guide. a cam plate having a horizontal portion in the center located above the cam roller and an inclined portion that descends from the horizontal portion toward both ends to a position lower than the cam roller; and an upper guide support post. An upper spring receiver protrudes from the upper end toward both ends of the sliding conveyor, and a spring that presses the vicinity of both ends of the upper guide downward via an end of the upper spring receiver and an end of the cam plate. A load transfer device characterized by: