JPS5849459B2 - Loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for mechanizing cargo handling work, which enables the stacking of planar, long-length cases sent in an undefined orientation onto a pallet in a multi-tiered manner. The present invention provides a loading device that can contribute to rationalization.

Hereinafter, preferred embodiments of the present invention will be described based on the attached illustrative drawings. As shown in FIGS.
Case turning device 3, case group traversing means 4, movable receiving plate 5
, a load straightening device 6 and a table lifter 7 for supporting pallets.

Reference numeral 8 denotes an upwardly sloped inclined belt conveyor that takes over and transfers cases sent out from the case orientation regulation sending device 1, and sends the cases to a case storage and tact feeding device 10 provided on a machine stand 9.

The device 10 includes a drive roller conveyor 11, a tact-driven belt conveyor 12, and a tact-driven delivery roller 13.

14 is a case guide. The inclined belt conveyor 8
is rotatable downward around the upper end shaft support 15 on the side of the machine base 9, and has a center folding part 16 for upward folding in the middle part.
The lower end portion 17 is mounted and supported on a receiving portion 19 protruding from a machine base 18 of the case orientation regulating and feeding device 1 .

The case orientation regulating and sending device 1 has a case transport stage 21 for supporting and transporting cases in the direction of an arrow 20, and is arranged such that the end of the case in the moving force direction comes into contact with the terminal end of this means. A case cross-feeding means 23 that moves in the transverse force direction (arrow 22 direction) perpendicular to the direction (arrow 20 direction), and a passage obstruction stage 24 for the case being traversed by the case cross-feeding means 23. There is.

As shown in FIGS. 3 to 5, the case conveyance stage 21 is
In this case, a driving roller conveyor is used which is driven by a large number of parallel driving rollers 25, and the case traversing means 23 has an endless belt 28 stretched around two drums 26 and 27 which are supported by a vertical axis, and one drum is A belt conveyor configured to drive a belt 26 with a motor 29 is used, and case rearward projections 30 are protruded from the outer surface of the belt 28 at appropriate intervals.

The case passage blocking means 24 includes a swinging arm 32 pivotally supported by a vertical shaft 31, a roller 34 pivotally supported at the tip of the swinging arm 32 by a vertical shaft 33, and the arm 32 shown in solid lines in FIG. It is composed of a tension spring 35 that biases and stabilizes it to a predetermined position.

36 is a belt conveyor that sends out the cases whose orientation has been corrected in the direction of arrow 22, and 37 is a case guide disposed on the side thereof.

38 is a motor that drives the belt conveyor 36;
Reference numeral 9 denotes a case guide that guides the case to a position laterally away from the case passage obstruction stage 24 that is transported by the case transport stage 21.

The case turning device 3 includes a case passage obstruction stage 41 provided in the conveyance path of the thousand case conveyance stages 40 that connects and conveys the cases sent out from the case storage and tact feeding device 10, and a state in which the case is provided on the upper side of the case and is in sliding contact with one side of the case 2 to turn the case transport direction in a direction in which the case does not collide with the means 41 (solid line state in FIGS. 1 and 6); A case turning guide 4 whose angle can be changed between a state in which a part of the case collides with the means 41 (a state shown by imaginary lines in FIG. 6);
2, and a case turning assist step 43 that pushes the rear end side of the case that collides with the means 41 and the side where the guide 42 is located in the direction opposite to the guide.

As shown in FIGS. 1 and 6, the conveying means 40 uses a drive roller conveyor with drive rollers 44 arranged in parallel in series up to the 1,000-stage case stopper 2,
As shown in FIG. 2, the part belonging to the case turning device 3 can be rotated and folded downwards around an intermediate transmission shaft 46 with respect to the machine base 45, and its free end 47 is attached to the receiver of the machine base 9. Part 4
It is detachably connected to 8.

The case passage blocking means 41 is comprised of a roller 51 which is pivoted by a vertical shaft 50 to a bracket 49 attached to one side of the conveying means 40 .

The case turning auxiliary means 43 consists of two adjacent drive rollers 4.
4, and as shown in FIG.
5, and a motor 56 that drives the chain 54 via one gear 52.

Normally, as shown by the solid line in FIG. 7, the pusher 55 is sunk below the conveyance surface of the thousand conveyor stages 40, and as the chain 54 rotates, the pusher 55 protrudes upward from the conveyance surface. Move laterally.

As shown in FIGS. 6 and 8, the case turning guide 42 has an upper end in the conveying direction that is attached to the bracket 57 with a vertical shaft 58.
The lower end in the transport direction is pushed and pulled by a piston/cylinder unit 59.

As shown in FIG. 8, the piston/cylinder unit 59
is attached to the lower machine frame of the conveying means 40 in parallel with the drive roller 44, and includes a cart 61 and the unit 59, which are movable in a direction parallel to the drive roller 44 guided by a rail 60 attached to the machine frame. The tip of the guide 42 is connected via an elongated hole 63 to a vertical shaft 62 which is connected to a piston rond and projects upwardly from a carriage 61 through between drive rollers 44, as shown in FIG.

As shown in FIG. 6, the case group cross-transfer means 4 includes a push-shear bar 64 extending substantially over the entire length of the transport stage 40 between the stop stage 2 and the turning device 3, and a push-shear bar 64 connected to the back near both ends thereof.
The book is configured to be reciprocated in the transverse force direction (in the direction of arrow 66) at right angles to the conveying direction of the 1,000-stage conveyor 40 through the bent arms 65, and the two bent arms 6
5 extend downward from between adjacent drive rollers 44 and are connected to reciprocating drive means.

This reciprocating drive means includes a bending arm 6 as shown in FIG.
5, and movably supported and guided by rails 67 installed in the direction of arrow 66;
A chain 71 suspended parallel to the rail 67 between gear wheels 69 and 70, a pin 73 protruding from the chain 71 and engaging with a longitudinal long hole 72 provided in the cart 68;
It is composed of a motor 74 that rotates a chain 71 via a toothed ring 69.

Therefore, by rotating the chain 71, the carriage 68 can be reciprocated along the rail 67 via the pin 73 and the elongated hole 72, thereby reciprocating the pusher bar 64 in the direction of the arrow 66.

As shown in FIG. 6, the load straightening device 6 includes a pusher roller 75 provided on the entrance side, side pusher bars 76 and 77 provided on both sides, and a stopper par 78 provided on the back side. Comprising: 76.
77 and stopper par 78 are attached to pantograph rings 79, 80 on the machine frame even if they fall down. 81 so as to be movable in parallel, and both side push shear bars 76 . The pantograph links 79 and 80 are driven by a common piston-cylinder unit 82 through chains 83 and 84, so that they move toward each other in conjunction with each other, and move apart due to spring force.

The stopper par 78 is connected to a pantograph link 81 via a chain 86 by a piston/cylinder unit 85.
It moves forward by driving it, and moves backward by the force of the spring.

87 is a buffer. The pusher roller 75 moves forward toward the stopper bar 78 after rising into the case transfer path from a retracted standby position that does not interfere with the movement of the case from above the transfer means 40 onto the movable receiving plate 5, or vice versa. The chain 89, which is provided to move backward and is engaged with each end of the roller 75 by a pair of piston/cylinder units 88, is moved forward along the bending path, and the backward movement is caused by a spring force. is configured to be performed.

That is, as shown in FIGS. 10 and 11, the shaft portions 90 at both ends of the pusher roller 75 pass through the elongated holes 91 forming the bending path, and the ends thereof are locked at appropriate positions on the chain 89. .

The chain 89 is hooked onto a tooth ring 92 pivotally supported by the piston rod of the piston/cylinder unit 88, makes a U-turn, and then is locked to a bracket 93, and the other end is rotated in the winding direction by a screw coil spring 94. After being wound around the biased tooth ring 95, it is locked to this tooth ring 95,
A portion along the elongated hole 91 is supported and guided by a chain guide 96.

Therefore, the piston/cylinder unit 88
2, the pusher roller 7 is pushed through the chain 89.
5 moves forward along the bending path regulated by the elongated hole 91 against the screw coil spring 94 at twice the speed.

The backward movement is performed by the torsion coil spring 94 unwinding the chain 89.

Sideputsshaba-76. The drive mechanism of 77 will be explained based on FIGS. 12 and 13, taking one bar 77 as an example. The pantograph link 80 consists of two links, one end of which is pivotally supported by a vertical axis on the machine frame and the bar 77. Link 9
7 and 98 are pivotally connected to each other at the center by a vertical shaft 99, and the free end of one link 97 is connected to the bar 77 through an elongated hole 100 provided in the bracket and a vertical shaft 101.
The free end of the other link 98 is tactfully connected via a long hole 102 provided in the bracket and a vertical shaft 103.

Then, a flange 105 of a rod 104 having one end pivotally supported on the machine frame side end of the link 98 so that the vertical shaft 103 is located at the outer end of the elongated hole 102, and a bracket 106 through which the rod 104 is slidably penetrated. between said rod 104
A compression coil spring 107 is fitted onto the outside of the bar 77, and the pressing force of the spring 107 stabilizes the bar 77 at the illustrated retraction limit position.

The chain 84 has a chain 84a whose one end is locked to an arcuate chain guide 108 connected to the end of the link 98, and the other end is locked to a rod 109 that slidably passes through the bracket 106. A chain 84b has one end locked to the rod 109 and the other end locked to the tooth ring 110 in a partially wound state, and one end partly wound around the tooth ring 111 that is concentrically integrated with the tooth ring 110. The chain 84c is locked in this state, and the other end is separated from the chain 84c, which is locked in a partially wound state around the chain drive disk 112.

Note that the intermediate portion of the chain 84c is guided by a toothed ring 113.

The chain drive disk 112 is constructed concentrically with a pinion gear 115 that engages with a rack gear 114 driven by the piston/cylinder unit 82.

The other side shear bar 76 is also supported by a similar pantograph link 79 and biased in the backward direction by a spring, and the end of its chain 83 is connected to a chain drive unit that is concentric with the pinion gear 115. It is locked to the disk 116 in a partially wound state, and
It is not divided like the chains 84b and 84c, and is simply guided by one stage of gear wheels at a part of the machine frame corner.

The two-stage gear wheels 110, 111 are used to vary the end height of the chain 83, 84 in response to the chain drive discs 112, 116.

Note that the rod 109 may be omitted and a continuous chain may be used.

With the above structure, the piston/cylinder unit 82
pulls the rack carrier 114 in the direction of the arrow, and connects the upper and lower chain drive discs 112, 11 via the pinion gear 115.
6 clockwise, the chains 83 and 84 are simultaneously pulled, and the ends of the links 98 and 107 are rotated clockwise.
It moves inward along the elongated hole 102 against the pressure.

Therefore, both pantograph links 79 and 80 extend inward, and both side pusher bars 76 and 77 move toward each other in parallel.

When the rack gear 114 is moved backward, both side pusher bars 76, 77 are moved back in the direction of separating from each other due to the pushing force of the compression coil spring 107.

Pantograph link 81 supporting stopper par 78
The means for biasing in the backward direction are the same as those of the side pusher bars 76 and 77, as shown by the same reference numerals in FIG. 14, and their explanation will be omitted.

The chain 86 is configured to be directly pulled by the piston/cylinder unit 85, and is hooked onto a gear ring 117 that is concentric with and rotatable relative to the gear ring 113 (see FIG. 12) that guides the chain 84c. stretched chain 86
is locked to an arcuate chain guide 108 connected to the end of the link 98 of the pantograph link 81.

Therefore, when the chain 86 is pulled by the piston/cylinder unit 85, the stopper 78 moves forward.
The backward movement is performed by the pressing force of the compression coil spring 107.

As shown in FIG. 6, the movable receiving plate 5 is movable back and forth in the direction of an arrow 121 via a support roller 119 and a lateral vibration prevention roller 120 on a pair of rails 118 arranged parallel to each other on both sides. They are engaged and supported, and are reciprocated by a driving means.

That is, as shown in FIG. 15, plates 123 having vertical long holes 122 are arranged downwardly at the rear ends of both sides of the movable receiving plate 5, and two plates 123 are arranged below the rail 118 in parallel with the rail 118. Chain 1 stretched between gear wheels 124 and 125
A pin 127 protruding from 26 is engaged with the elongated hole 122, and as shown in FIG.
8 and each of the gear wheels 124 are interlocked and connected via gear wheels 129, 130 and a chain 131, as shown in FIG.

Therefore, by driving the intermediate shaft 128 with the motor 1 and rotating the chains 126 on both sides at the same speed, the movable receiving plate 5 can be reciprocated with a required stroke via the pin 127 and the elongated hole 122.

132 is a chain guide.

Next, the method of use and operation of the rotating device configured as described above will be explained.

As shown in FIGS. 16 and 17, the case A, which has a long planar shape, is carried by the conveying means 21 in an undetermined direction at the direction indicated by the arrow 2.
If the case A is conveyed in the direction shown in FIG.
Or, the long sides are in contact (Fig. 17).

In the former state, the case A that is being fed laterally in the direction of the arrow 22 by the belt 28 or the case backing protrusion 30 will pass through the case near the outer end of the long side of the case A, as shown in FIG. It collides with the roller 34 of the obstruction means 24, and in this state, only the side that comes into contact with the case cross-feeding means 23 is forcibly pushed back by the protrusion 30, so that the case A rotates counterclockwise as shown by the imaginary line. Then, the long side is oriented in the direction of the arrow 22 and is sent out again by the belt conveyor 36.

On the other hand, in the latter case, as shown in FIG. 17, the case A is moved between the case traversing means 23 and the belt conveyor without colliding with the rollers 34 with its long side oriented in the direction of the arrow 22. 36 and sent out in the direction of arrow 22.

In other words, no matter what direction the case A is conveyed, the action of the case orientation regulating and discharging device 1 causes the case A to be conveyed in a state in which its length direction is regulated to be parallel to the conveyance direction. .

In addition, since the roller 34 can rotate on its own axis and can swing in response to external force against elasticity, when it collides with case A and changes its direction, it can smoothly turn without damaging case A. can be caused to act.

Cases A with a fixed orientation sent out from the case orientation regulation sending out device 1 are transferred to the case storage and tact feeding device 1 via an inclined belt conveyor 8, as shown in FIG.
The belt conveyor 12 and rollers 13 are transported to the conveyor belt 0 and stored there as shown in the figure, and then driven intermittently.
As a result, it is sent onto the conveyance stage 40 at a constant timing for the downstream device.

Next, the case A will pass through the case turning device 3. For example, as shown in FIG. Case A
is conveyed by the conveyance means 40 while the guide 42K
One long side is guided in sliding contact and carried to a position immediately before the pusher bar 64 of the case group traversing means 4, and is stopped by the stopper step 2.

Once a predetermined number of cases A, for example two cases A, have been prevented from being carried in series in such a manner that their long sides are in sliding contact with the push shear bar 64, the push shear bar 64 is then moved forward to convey the serial case group B. It is pushed out from above the stage 40 onto the movable receiving plate 5, and the pusher bar 64 is returned to its original position.

For the next case to be sent, as shown in FIG. 20, the inclination angle of the case turning guide 42 is made gentler to expose the roller 51 of the case passage blocking means 41.
The case A, which is conveyed by the conveyance means 40 in such a manner that its long side is in sliding contact with the guide 42, collides with the roller 51 at one side of its front end.

At this time, when the chain 54 of the case turning assisting means 43 is rotated to project the pusher 55 onto the conveyance surface and move it laterally, the pusher 55 moves toward the rear end of the long side adjacent to the guide 42 of the cane A. This means that case A is pushed in the opposite direction to the guide, and furthermore, since the transport stage 40 always applies a driving force in the direction of the stop stage 2, case A is centered at the contact part with the roller 51. Rotate clockwise to
With its short side turned at right angles to the push shear bar 64, it is carried to a position just in front of the push shear bar 64, and is stopped by the stopper 2.

In this way, when a predetermined number of the three orthogonal turning canes A, which in this embodiment has a total length equal to the total length of the previous series case group B, are prevented from being carried in series, the pusher bar 64 is moved forward again. , the series case group C consisting of the three orthogonal turning cases is laterally fed onto the movable receiving plate 5 in a manner that backs up the previous series case group B.

Once the case group D for one stage has been fed onto the movable receiving plate 5 as described above, the pusher roller 75 of the load straightening device 6 is raised into the conveying path and moved forward as shown in FIG. Move case group D to stopper par 78
Push to the side, further pusher bar on both sides 76.77
By moving the stopper 78 toward the pusher roller 75, the case group D is pressed from all sides and corrected into an orderly package.

On the other hand, as shown by the imaginary lines in FIGS. 2 and 22, a pallet E is carried onto the table lifter 7 which is at the lower limit position by a pair of chain conveyors 133 that sandwich the table lifter 7. is lifted by the rise of the table lift 7 and kept waiting at a position directly below the movable receiving plate 5. In this state, the movable receiving plate 5 is pulled out and moved by the lateral external force of the case group D as shown in FIG. The case group D on the movable receiving plate 5 is pressed from all sides by the pusher roller 75, both side push shear bars 76 and 77, and the stopper bar 78 and cannot be moved in the lateral force direction.
When the movable receiving plate 5 is pulled out, it falls and is placed on the pallet E.

After that, as shown in FIG. 24, lower the table lifter 7 by the thickness (height) of the case A, and move the movable receiving plate 5.
The others are returned to their original positions, and one stage of case group D is again formed on the movable receiving plate 5 as described above, and by pulling out the movable receiving plate 5, it is placed onto the case group D already on the pallet E. Have it on board.

By repeating the same operation, when the case group D is stacked a predetermined number of times on the pallet E as shown in FIG. The group of cases placed on a set of chain conveyors 133 can be conveyed onto the next stage conveyor 134 by driving the chain conveyor 133.

As is clear from FIG. 25, when forming case group D, two types of series case groups B and C are formed for each case group D.
It is desirable to change the form-power order of .

The rotating device according to the present invention can be implemented and used as shown in the above embodiments, but the most important features of the device according to the present invention are the case restraint stage 2 and the restraining means 2.
A transverse feeder 4 that feeds out the serial case group stopped in the direction of a right-angled lateral force, a movable receiving plate 5 that supports the fed-out case group and can be pulled out laterally, and this movable receiving plate 5.
A loading device equipped with a table lifter 7 for supporting pallets, which is disposed below the table and whose height can be changed, presses the case group transferred onto the movable receiving plate 5 from all sides toward the center. A load shape correction device 6 is provided, and this device 6
(in the embodiment, a pusher roller 75, a side pusher bar 76, 77,
The pressing means (the pusher roller 75 in the embodiment) disposed at the inlet portion of the stopper par 78 into which the case is fed by the cross-feeding means 4 moves to a standby position below the case movement path onto the movable receiving plate 5. After protruding onto the case moving path, it is configured to move on the movable receiving plate 5 toward the center.

According to the device of the present invention having such features, it is possible to completely correct the packing appearance by pressing the case group fed by the cross-feeding means 4 onto the movable receiving plate 5 from all sides, and it is also possible to completely straighten the case group. Since the movable receiving plate 5 can be pulled out while being pressed from all four sides, the cargo can be transferred to the pallet supported by the table lifter 7 without disturbing the appearance of the cargo at all. Among the suppressing means, the pressing means (the pusher roller 75 in the embodiment) disposed at the entrance portion into which the case is fed by the cross-feeding means 4 is moved to the cross-feeding means 4.
When the device is used for both purposes, the next case cannot be fed in front of the cross-feeding means 4 until after the load straightening action is completed and the cross-feeding means 4 has returned to its original position. According to the above, once the required number of cases are fed onto the movable receiving plate 5 by the cross-feeding means 4, the cross-feeding means 4 can be immediately returned to its original position to accept the next case. Since the cargo shape correction work can be performed on the movable receiving plate 5 during the receiving work, the entire work can be performed extremely efficiently.

In addition, as described above, the cross-feeding means 4 also serves as one of the suppressing means, since the stroke of the cross-feeding means 4 becomes longer, which increases the size of the entire device and increases the installation area of the device. According to the inventive device, there is no such inconvenience.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the whole, Fig. 2 is a side view thereof, Fig. 3 is a plan view of the case orientation regulation feeding device, Fig. 4 is a side view of its main parts, and Fig. 5 is a vertical cross-sectional front view of its main parts. 6 is a plan view of a portion including a case turning device, a load straightening device, etc., FIG. 7 is an elevational view showing a case turning assist means, and FIG. 8 is an elevational view showing one drive means of a case turning guide. 9 is an elevational view showing the case group traversing means, FIG. 10 is an elevational view showing the pusher roller drive means, FIG. 11 is a plan view of the main parts, and FIG. 12 is the side pusher. FIG. 13 is a partially cutaway plan view showing the driving means of the bar; FIG.
Figure 4 is a partially cutaway plan view showing the drive means for the stopper bar, Figure 15 is an elevational view showing the drive means for the movable receiving plate, and Figure 16 is a partially cutaway plan view showing the drive means for the stopper bar.
25 to 25 are explanatory views of the functions of each part, and FIGS. 16 and 17 to 21 are plan views, and FIGS. 18 and 22 to 25 are elevational views. DESCRIPTION OF SYMBOLS 1... Case direction regulating sending device, 2... Case restraining means, 3... Case turning device, 4... Case group lateral feeding means, 5... Movable receiving plate, 6... Packing form Straightening device, 7... Table lifter for pallet support 8...
Inclined belt conveyor, 10... Case storage and tact feeding device, 21... Case conveyance means, 23.
. . . Case cross-feeding means, 24 . . . Case passage obstruction means, 28 . . . Endless belt, 30 . . .
...Tension spring, 36...Belt conveyor, 37.3
9... Case guide, 40... Case transport means, 4
DESCRIPTION OF SYMBOLS 1... Case passage obstruction means, 42... Case turning guide, 43... Case turning assisting means, 51... Roller, 54... Chain, 55... Pusher, 59...
・Piston/cylinder unit, 64...Pusher bar, 67...Rail, 68...Dolly, 71...
・Chain 75...Pusher roller 76.7
7... Side puttshar bar, 78... Stopper par 79.80.81... Pantograph link, 8
2, 85, 88...piston/cylinder unit,
83, 84, 84a to 84c, 86, 89... Chain, 91... Pusher roller guide slot, 94...
・Torsion coil spring, 107... Compression coil spring, 1
08...Circular chain guide, 112, 116...
Chain drive disk, 114...Rack gear, 115
... Pinion gear, 11B... Movable receiving plate guide rail, 122... Long hole, 126... Chain, 127...
・Pin 133...Chain conveyor, A...Ken, B, C, D...Case group, E...Pallet.

Claims (1)

[Claims] 1. 1,000 stage case restraint 2, lateral transport means 4 for sending out the case group in series stopped by the 1,000 stage restraint 2 in the direction of right angle lateral force, a movable receiver that supports the sent out case group and can be pulled out to the lateral side. A group of cases transferred onto the movable receiving plate 5 in a loading device equipped with a plate 5 and a pallet supporting table lifter 7 disposed below the movable receiving plate 5 and whose height can be changed freely. A load straightening device 6 is provided which presses the cane from all sides toward the center, and among the four suppressing means movable in and out of this device 6, the device 6 is disposed at the entrance portion into which the cane is fed by the lateral feeding means 4. The pressing means includes an elevating path section from a standby position under the case moving path onto the movable receiving plate 5 to above the case moving path, and a horizontal moving path section extending from the upper end of this elevating path section along the case moving path. A rotating device characterized in that it is configured to reciprocate on an inverted L-shaped movement path consisting of.