JPH05201530A - Branching transport device - Google Patents

Abstract

PURPOSE:To enable a cargo stopper to be automatically switched to a cargo- passing state and a cargo-stopping state providing lifting frames, traverse motion switching/transfer devices, a stopper falling preventive engaging member, and traverse motion transfer devices in the middle part in the longitudinal direction between a pair of longitudinal direction transfer devices. CONSTITUTION:When a cargo 13 placed on a pair of longitudinal direction transfer devices 1 is moved forward passing through the parts of traverse motion switching/transfer devices 5, the cargo 13 passes the parts of the traverse motion switching/transfer devices 5 and advances while forcing a stopper 7 to fall and rotate if lifting frames 3, traverse motion switching/transfer devices 5 and a stopper falling preventive engaging member 8 are lowered by a lifting driving device 2, and when it is bent and transferred, a stopper falling preventive temporary fitting member 8 is lifted up to the intermediate position, and its upper part is made to face the back part of the lower part of the stopper 7, so that the stopper may not fall and rotate. Therefore, the cargo 13 being transferred forward abuts against the stopper and stops, and the cargo is transferred to right and left.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for branching and carrying a load by a conveyor.

[0002]

2. Description of the Related Art Conventionally, as a branching / conveying device for cargo, as shown in FIGS. 15 to 17, a pair of front-rear direction transfer devices 1 extending in the front-rear direction are arranged at intervals in the left-right direction. An elevating frame 3 which is moved up and down by an elevating drive device 2 is provided in the front-rear direction intermediate portion between the elongate transport devices 1, and a transverse switching transfer device driven by the transverse transfer drive device 4 on the elevating frame 3. 5 is provided, the intermediate portion of a stopper 10 having an upper end portion projecting above the front-rear direction transfer device 1 in front of the elevating frame 3 is provided on the frame 6 of the front-rear direction transfer device 1 by means of a horizontal shaft 11. The lower end of 10 and the frame 6 of the front-rear direction transfer device 1 are connected by a fluid pressure cylinder 12 for rotating the stopper, and the traverse switching transfer device 5 is provided outside the front-rear direction transfer device 1. When the traverse transfer device 9 is provided at a position where the cargo 13 is forwardly conveyed by the front-rear direction transfer device 1 through the portion of the transverse switching transfer device 5, the stopper rotating fluid pressure cylinder 12 moves the stopper 10 in the front-rear direction. It is rotated so as not to project upward from the transfer device 1 (see a chain line state in FIG. 17), and the load 13 forwardly conveyed by the front-rear direction transfer device 1 is stopped at the portion of the transverse switching transfer device 5 and the traverse thereof is performed. When the switching transfer device 5 and the traverse transfer device 9 are used to convey in the left-right direction, the stopper 10 is rotated by the stopper rotating fluid pressure cylinder 12, and the upper end of the stopper 10 is moved forward and backward.
There is known a branching / conveying device configured so as to be projected above.

[0003]

In the case of the conventional branching / conveying device, the cargo 13 conveyed by the front / rear direction conveying device 1 is not conveyed in the left-right direction but is conveyed forward,
Alternatively, the stopper rotation fluid pressure cylinder 12 is determined depending on whether the transverse switching transfer device 5 is bent and conveyed in the left-right direction.
Since it is necessary to rotate the stopper 10 according to the above, it is necessary to perform a complicated rotation operation for switching the stopper 10.

[0004]

In order to advantageously solve the above-mentioned problems, in the branching and conveying apparatus of the present invention, a pair of front-rear direction transfer devices 1 extending in the front-rear direction are arranged at intervals in the left-right direction. Then, an elevating frame 3 which is moved up and down by an elevating drive device 2 is provided at an intermediate portion in the anteroposterior direction between the pair of longitudinal transfer devices 1, and the elevating frame 3 is driven by a transverse transfer drive device 4. A traverse switching transfer device 5 is provided, and an intermediate portion of a stopper 7 having an upper end projecting above the front-rear direction transfer device 1 is pivotally attached to the frame 6 of the front-rear direction transfer device 1 in front of the elevating frame 3. A stopper fall prevention engagement member 8 is provided at a front portion of the elevating frame 3 to engage a lower portion of the stopper 7 when the elevating frame 3 is raised to prevent the stopper 7 from falling down and rotating. Outward direction transfer device 1, provided with a transverse transporting device 9 at a position facing the transverse switching 換移 feeding device 5.

[0005]

1 to 14 show a branching / conveying device according to an embodiment of the present invention, in which a pair of front-rear direction transfer devices 1 extending in the front-rear direction are arranged at intervals in the left-right direction, T-shaped cross-section grooves 14 extending in the longitudinal direction of the frame are provided on both side walls, a lower portion and an upper portion of the frame 6 having a hollow cross section in each longitudinal transfer device 1, and the lower portion of the frame 6 of each longitudinal transfer device 1 is , The nuts 16 placed on the upper portions of the support frames 15 arranged at intervals in the front-rear direction and fitted into the T-shaped cross-section grooves 14 and fixed by the bolts 17 screwed to the nuts 16, and each support frame. The lower part of 15 is placed on a concrete floor 18,
It is fixed by an anchor bolt (not shown) if necessary.

A chain guide lower rail 19 is fitted in a groove provided in the bottom of the frame 6 and extending in the longitudinal direction of the frame, and is fixed by a bolt 20. Rail 2
1 is fitted in a T-shaped cross-section groove 14 on the upper portion of the frame 6 and fixed by a screw or other suitable means. The drive shaft 26, to which the device 22 is fixed and which is rotated by the drive device 22 for forward and rearward movement thereof via the drive sprocket 23, the transmission chain 24 and the driven sprocket 25, is arranged over each frame 6 and the base of each frame 6. A chain for forward and backward transfer is supported by a drive sprocket 28 supported by bearings 27 provided at the ends and fixed to both ends of the drive shaft 26, and a driven sprocket 29 rotatably attached to the tip end of each frame 6. 30 is wound, and the lower linear portion of the front and rear transport chain 30 is supported by the lower chain guide rail 19. Further, the longitudinal-conveying chain 3
The upper linear portion of 0 is supported by the chain guide upper rail 21.

A support base 31 is arranged at an intermediate portion in the front-rear direction between the pair of left-right front-rear transfer devices 1, and support metal fittings 32 are fixed to the front and rear left and right sides of the support base 31, and a seat plate 33 is provided. The vertical threaded rod 34 fixed to the support metal fitting 32 is inserted into the support metal fitting 32, and the nuts 35 and 36 screwed to the vertical metal thread 34 at the upper and lower portions of the support metal fitting 32 cause the support metal fitting 32 to be higher than the vertical metal thread 34. The seat plate 33 is fixed so as to be adjustable, and the seat plate 33 is fixed to the floor 18 by anchor bolts 37.

A plurality of vertical guide members 38 are fixed to the support base 31, and a guide tube 39 fitted in the guide members 38 so as to be movable up and down is fixed to the lift frame 3 arranged above the support base 31. The elevating drive device 2 including an electric motor with a speed reducer is fixed to the support base 31, and two elevating drive shafts 40 extending in the front-rear direction are rotatably supported by the support base 31 via bearings 41. A transmission chain 44 is wound around a plurality of drive sprockets 42 fixed to the output shaft of the lifting drive device 2 and a driven sprocket 43 fixed to each lifting drive shaft 40.

An eccentric support shaft 45, which is eccentric in the same direction, is fixed to both ends of each lifting drive shaft 40.
5, a roller 46 is rotatably attached to the roller 4
6 is fitted in a horizontal groove 47 provided in the elevating frame 3, and when the elevating drive device 2 rotates each elevating drive shaft 40 by 180 °, the elevating frame 3 is moved up or down.

Two frames 48 having the same structure as the frame 6 are arranged so as to extend in the left-right direction, and are placed on the elevating frame 3 in a state of being arranged at intervals in the front-rear direction, The lower part of each frame 48 is fixed to the elevating frame 3 by the nut 49 fitted into the T-shaped groove 14 at the lower part of the frame 48 and the bolt 50 screwed to the nut 49, and the same as in the case of the front-back direction transfer device 1. Further, the chain guide lower rail 19 and the chain guide upper rail 21 are attached to the frame 48.

A traverse transfer drive device 4 composed of an electric motor with a speed reducer is fixed to one frame 48, and is driven by the traverse transfer drive device 4 via a drive sprocket 51, a transmission chain 52 and a driven sprocket 53. The shaft 54 is rotatably installed over one end of each frame 48, and has a drive sprocket 55 fixed to both ends of the drive shaft 54 and a driven sprocket 56 rotatably attached to the other end of each frame 48. A left / right transfer chain 57 is wound around the lower left / right transfer chain 57, and a lower linear part of the left / right transfer chain 57 is supported by a lower rail 19 for a chain guide, and an upper linear part of the left / right transfer chain 57 is an upper part for a chain guide. A frame 48 supported by the rail 21 and attached to the elevating frame 3; Left and right transporting chains 57 driven by the row transfer drive unit 4, rampant switching 換移 feeder 5 is constituted by each member supported by the frame 48.

A pair of transverse transfer devices 9 extending in the left-right direction are arranged outside the front-rear direction transfer devices 1 at positions facing the transverse switching transfer device 5, and are arranged at intervals in the front-rear direction. The device 9 is provided with a left-right transfer chain 58 that is cyclically driven by the same drive device as the front-rear direction transfer device 1.

The intermediate portion of the stopper 7 having a weight 59 at the bottom is pivotally attached to the support plate 60 by a horizontal shaft 61,
The support plate 60 is in contact with the inner side surface of each frame 6 at a position slightly distant from the transverse switching transfer device 5, and a plurality of bolts 62 inserted into the support plate 60.
Is a nut 63 fitted in the T-shaped groove 14 of the frame 6
Is screwed to, by the bolt 62 and the nut 63,
The support plate 60 is fixed to the frame 6, and the upper portion of the stopper 7 projects above the front-rear transfer chain 30 of the front-rear transfer device 1.

Stopper fall prevention engagement members 8 are fixed to the left and right sides of the front portion of the elevation frame 3, and when the elevation drive unit 2 moves the elevation frame 3 upward, the stopper fall prevention engagement members 8 are moved. The upper portion of the stopper 7 is arranged so as to be close to the rear portion of the lower portion of the stopper 7, so that the load 13 such as a loading pallet that is forwardly transferred by the pair of front-rear direction transfer devices 1 strikes the upper portion of the stopper 7 and Even if the stopper 7 is rotated, the lower portion of the stopper 7 is engaged with the stopper collapse prevention engagement member 8, so that the stopper 7 is prevented from rotating by the load 13.

When the elevating frame 3 is moved downward by the elevating drive device 2, the stopper collapse prevention engagement member 8 is formed.
Since the upper part of the stopper 7 is arranged below the lower part of the stopper 7, when the load 13 forwardly transferred by the pair of front-rear direction transfer devices 1 hits the upper part of the stopper 7, the stopper 7 is tilted and rotated, The load 13 is transferred forward through the stopper 7.

When the luggage 13 placed on the pair of front-rear direction transfer devices 1 is transferred forward through the portion of the transverse switching transfer device 5, the elevating drive device 2 moves the elevating frame 3, the transverse switching transfer. When the device 5 and the stopper falling prevention engagement member 8 are lowered, as described above, the luggage 13 moves forward while passing the portion of the transverse switching transfer device 5 while tilting and rotating the stopper 7. .

Further, after the load 13 placed on the pair of front-rear direction transfer devices 1 is transferred forward, the transverse switching transfer device 5
In the case of bending and transferring to the left or right at the portion of, the lifting drive device 2 raises the lifting frame 3, the transverse switching transfer device 5, and the stopper collapse prevention engagement member 8 to an intermediate position as shown in FIG. Then, the upper portion of the stopper falling prevention engagement member 8 is made to face the rear portion of the lower portion of the stopper 7 so that the stopper 7 does not fall and rotate.

In this way, the load 13 forwardly transferred by the pair of front-back direction transfer devices 1 hits the stopper 7 and stops. Next, as shown in FIGS. 12 and 13, the elevating frame 2, the transverse switching transfer device 5, and the stopper fall prevention engagement member 8 are raised to the upper limit position by the elevating drive device 2, and the transverse switching transfer device 5 is moved. The left-right transfer chain 57 is arranged at a higher level than the front-rear transfer chain 30 of the front-rear direction transfer device 1, and then the transverse transfer drive device 4 is normally or reversely rotated to drive the transverse transfer device 5. The left and right transfer chains 57 of the traverse switching transfer device 5 are driven to drive the left and right transfer chains 57.
From the left-hand side traverse transfer device 9 left-right transfer chain 58
Alternatively, the right and left transfer chains 58 of the rightward transfer device 9
To the left and right transfer chain 9 of the transverse transfer device 9
8, the load 13 is transferred to the left side or the right side.

[0019]

According to the present invention, a pair of front-rear direction transfer devices 1 extending in the front-rear direction are arranged at intervals in the left-right direction, and are located in the front-rear direction intermediate portion between the pair of front-rear direction transfer devices 1. An elevating frame 3 that is moved up and down by an elevating drive device 2 is provided, and a transverse switching transfer device 5 that is driven by a transverse transfer drive device 4 is provided on the elevating frame 3, and a frame 6 of the front-rear direction transfer device 1 is provided. When an intermediate portion of a stopper 7 having an upper end portion projecting upward from the front-rear direction transfer device 1 is pivotally mounted in front of the elevating frame 3, and the elevating frame 3 rises to the front part of the elevating frame 3. A stopper fall prevention engagement member 8 that engages the lower portion of the stopper 7 to prevent the fall rotation of the stopper 7 is provided, and is located outside the front-rear direction transfer device 1 at a position facing the traverse switching transfer device 5. Is provided with the transverse transporting device 9, a baggage stop stopper 7 in the branch conveying device, it can be switched automatically luggage passing state and luggage stop state by a simple device.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a branching and conveying apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional side view showing the vicinity of a transverse switching transfer device in a branching and conveying device according to an embodiment of the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a vertical cross-sectional front view showing a state in which the traverse switching transfer device in the branch conveyance device according to the embodiment of the present invention is lowered.

FIG. 5 is a vertical cross-sectional rear view showing a state in which the traverse switching transfer device in the branch transport device according to the embodiment of the present invention is lowered.

FIG. 6 is a vertical sectional side view showing a part of FIG. 2 in an enlarged manner.

FIG. 7 is a vertical cross-sectional front view showing an attached state of a stopper.

FIG. 8 is a vertical cross-sectional front view showing drive-side end portions of the front-rear direction transfer device and the transverse transfer device.

FIG. 9 is a vertical cross-sectional front view showing driven side end portions of the front-rear direction transfer device and the transverse transfer device.

FIG. 10 is a vertical sectional front view showing an intermediate portion of the front-rear direction transfer device and the transverse transfer device.

FIG. 11 is a vertical cross-sectional side view showing a state in which the stopper falling prevention engagement member is raised to an intermediate position.

FIG. 12 is a vertical cross-sectional side view showing a state where the transverse switching transfer device is raised to an upper limit position.

FIG. 13 is a vertical cross-sectional front view showing a state where the traverse switching transfer device is raised to an upper limit position.

FIG. 14 is a partially cutaway vertical side view of the front-rear direction transfer device.

FIG. 15 is a schematic plan view showing a conventional branching and conveying apparatus.

FIG. 16 is a vertical cross-sectional side view showing the vicinity of a transverse switching transfer device in a conventional branching and conveying device.

FIG. 17 is a side view showing a stopper operating device in a conventional branching and conveying device.

[Explanation of symbols]

 1 Front-rear direction transfer device 2 Lifting drive device 3 Lifting frame 4 Traverse transfer drive device 5 Traverse switching transfer device 6 Frame 7 Stopper 8 Stopper fall prevention engagement member 9 Traverse transfer device 13 Luggage 14 T-shaped cross section groove 15 Support frame 16 nuts 17 bolts 18 floors 19 lower rails for chain guides 21 upper rails for chain guides 22 drive device for front-rear transfer 26 drive shaft 28 drive sprocket 29 driven sprocket 30 front-rear transfer chain 31 support base 38 guide member 39 guide cylinder 40 for lifting Drive shaft 45 Eccentric support shaft 46 Roller 47 Horizontal groove 48 Frame 49 Nut 50 Bolt 54 Drive shaft 55 Drive sprocket 56 Driven sprocket 57 Left and right transfer chain 58 Left and right transfer chain 59 Weight 60 Support plate 61 Horizontal shaft 62 Bolt 63 nuts

Claims (1)

[Claims] 1. A pair of front-rear direction transfer devices 1 extending in the front-rear direction are arranged at intervals in the left-right direction, and a lifting drive device 2 is provided at an intermediate part in the front-rear direction between the pair of front-rear direction transfer devices 1. An elevating frame 3 that is moved up and down by means of the elevating frame 3 is provided, and a transverse switching transfer device 5 that is driven by a transverse transfer drive device 4 is provided on the elevating frame 3, and a frame 6 of the longitudinal transfer device 1 is provided in front of the elevating frame 3. In the above, a middle portion of a stopper 7 having an upper end portion protruding above the front-rear direction transfer device 1 is pivotally attached, and is engaged with a lower portion of the stopper 7 at a front portion of the elevating frame 3 when the elevating frame 3 rises. A stopper falling prevention engagement member 8 for preventing the falling rotation of the stopper 7 is provided, and the transverse transfer device 9 is provided outside the longitudinal transfer device 1 at a position facing the transverse switching transfer device 5. The branch transport device provided.