JPS5943705A - Apparatus for taking-in and -out pallet to pallet housing rack provided with free roller conveyer - Google Patents

Abstract

PURPOSE:To draw smoothly pallets out of the above mentioned rack with an ascending gradient by advancing and retreating a movable frame, a stopper pushing member and a withdrawal fitting with a hydraulic cylinder to perform operations of rack stopping, pallet pushing and withdrawal. CONSTITUTION:After a pallet 40 is mounted on a free roller conveyer 5 under the standby condition of a taking-in and -out unit 3 and then said unit 3 is aligned with a desired housing rack 1, a hydraulic cylinder 9 is extended. Then, a stopper 26 and a frame are advanced and a withdrawal fitting 34 pivots upward to ride over an engaging wall 45 of the pallet 40 so that a pusher 14 pushes the pallet 40. Thus, the pallet 40 advances while pushing a pellet 40a in the rack and bringing down a stopper 6 to engage the stopper 6. When the pallet is taken out, the cylinder 9 is extended and the stopper 6 is brought down by a stopper pushing member 26 while the withdrawal fitting 34 is stopped in the wall of the pallet 40. The pallet 40 can be securely drawn out by contracting said cylinder 9.

Description

[Detailed Description of the Invention] The present invention is a storage rack in which pallets are sequentially pushed from below into a storage rack equipped with a free roller conveyor with a gentle upward slope, and the pallets are stored by being locked with a pallet pruning stopper at the bottom. Regarding a pallet loading/unloading device.

As shown in Fig. 1, the above-mentioned storage shelf 1 is usually provided in a multi-tiered manner with its lower end facing the whole list 2, and the free roller conveyor of the storage shelf 1 is also connected to the elevating unloader device B installed on the list 2. A free roller conveyor 5 having the same slope as that of 4 is provided, and when both free roller conveyors 4.5 are aligned with no difference in level, pallets are transferred between them.

In this case, the pallet that has been pushed into the storage shelf 1 from the loading/unloading device 3 is stored while being stopped by the stopper B.
To take out a pallet from the storage shelf 1, a stopper pushing member provided on the loading/unloading device 6 moves forward to cause the stopper 6 to fall down and transfer the pallet to the loading/unloading device 6.

Such a loading/unloading device 3 has already been developed in Utility Model Publication No. 56-49956.
The conventional device disclosed in the above publication has a storage shelf 1.
Since the pallet is transferred from the pallet to the loading/unloading device 3 by natural descent due to the full weight of the pallet and the loaded object, stoppage I in List 2: If the error free roller conveyor 5 stops higher than the 7-lead roller conveyor 4, If the rotational friction of the rollers of the free roller conveyor 40 is excessive, there is a drawback that the pallet cannot be smoothly lowered into the loading/unloading device 3. The present invention provides a system for carrying out pallets to a pallet storage rack equipped with a free roller conveyor which eliminates the above-mentioned drawbacks of the conventional apparatus by providing a pull-out device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Illustrated embodiments of the invention will be described below.

In FIGS. 2 and 6, the loading/unloading device 6 includes a free roller conveyor 5 provided at the front of the frame 7 and a trunnion 8.
The movable frame 10 has a hydraulic cylinder 9 pivotally supported on the frame 7 and a movable frame 10 that is driven back and forth by this cylinder.
A connecting fitting 16 is fitted into a longitudinal groove of the movable frame 10 and fixed to the lower part of the front button plate 12 which constitutes the movable frame 10. The connecting fitting 16 is connected to the rod of the hydraulic cylinder 9 and is moved back and forth.

The button board 12 has buttons 14 fixed on both sides of the front part, and a support frame 17 into which guide rails 15 and VC rollers 16 fixed to the button board 12 are fitted and guided. 7,
A pair of ronds 18 whose front ends are connected to the support frame 17 pass through the key metal of a bearing member 19 fixed to the frame 7 and extend rearward. is fixed.

A pair of recesses 22 and 23' having a predetermined interval t (5D+m) are provided in each iron 18, and a locking member 24 fixed to the button plate 12 is provided with a lock ball that presses into the recess 22 or 23. Therefore, the support frame 17 can move back and forth together with the movable frame 10 by the pressing engagement, and before the movable frame 10 reaches the most retreated standby position shown in the figure, the piece 20 comes into contact with the bearing member 19. The lock ball is engaged with all the recesses 26, and before the movable arm 10 reaches the front end stop position, the stop piece 21 comes into contact with the bearing member 19Vc, disengages from the all the lock ball recesses 26, and engages with the recess 22. Match.

A stopper pushing member 26 is supported by a hinge 25 at the front of the support frame 17 so as to be able to swing up and down, and is fixed to the support frame 17 (the lower surface of the stopper pushing member 26 is parallel to the pusher plate 12 by a locking metal fitting 27). In this state, the lower surface protrudes slightly downward from the button plate 12↓, and there is a notch in the front portion of the button plate 12 that allows the stopper pushing member 26 to move backward.

4 and 5 show details of the stopper pushing member 26. A support fitting 28 and a free space 29 at the front thereof are fixed to both sides of the stopper pushing member 26, and a pin 30 inserted through the supporting fitting 28 is attached to the arm. The rear end of the arm 61 is pivotally supported, and the coil spring 62 causes the rainbow arm 61 to come into contact with the stopper 29 and bias it against the gill parallel to the butcher plate 12. 64 drawer fittings are inserted into the split groove 56 of the arm 31 and pivoted by a tip pin 65, and the bolt 66 attached to the drawer fittings 64 hits the stopper fitting 67 fixed to the arm and the upper surface of the arm 61. Accordingly, the rotation range of the drawer fitting 64 is limited.

The lower edge of the drawer fitting 4 protrudes triangularly from the lower surface of the arm 61 at the solid line position shown in the drawing where the bolt 66 is in contact with the upper surface of the arm, and the slope of the front edge 6B is relatively small. In the figure, the vertical angle is 15 mm and the slope is bald.

Pallets 4 taken in and out of storage shelf 1 by drawer device 5
As shown in FIGS. 6 and 7, B is a concavity in which the stopper pushing member 26 enters by recessing the entire center of the four sides of the shallowly raised peripheral wall 42 around the square bottom 41. Place 4
6', and both side portions thereof are used as buttons 140 and abutments 44. In contact with the inner surface of the peripheral wall 42 at the portion of the recess 46, a higher B engagement wall 45'? f: Fixed, bottom 41
A heavy object 47 such as an engine is placed on a pedestal 46 provided at the second side.

A stopper 6 is mounted on the purple bin 48 at the lower end of the storage shelf 1 and is pivotally supported so that it can be raised and lowered freely, and a roller 49'f is attached to the tip thereof. The stopper 6 is biased in the upright direction by a weight 50, and in the upright state, the stopper 6 locks in the pallet recess 46 and the baren) 4
[1 storage shelf holds 1 VC] Next, the present invention will be explained in detail.

(1) Pallet carrying process When the carrying out large Buddha w6 is in the standby state shown in FIG. 2, all pallets 40 are placed on the free roller conveyor 5, and the drawer device 3 is aligned with the storage shelf 1 at a desired height. The hydraulic cylinder 9 is extended, and the movable frame 1D and the stopper pushing member 2
When the 6-way rug is moved forward, the drawer fitting 34 and the front edge 38 first hit the pallet retaining wall 45 and rotate upward, and the retaining wall 45
Climb over the meeting and enter the pallet 40. Next, Butsusha 1
4 hits the contact part 44 and advances the pallet 40 1;
In this case, the stopper pushing member 26 protrudes forward from the button 14 by VCa (30 m), and the protrusion it a
is smaller than the depth I) (55 .mu.) of the pallet recess 4, so a small gap (ba) exists between the stopper pressing member 26 and the pallet 40.

When the pallet 40 comes into contact with the barrel 40a on the storage shelf 1 and is pushed all the way, the pallet 40 falls down by the stopper 6 due to its own weight VC and enters the storage shelf 1. Before the movable frame 10 reaches the predetermined forward end, the stop piece 21 hits the bearing member 19 and stops the stopper pushing member 26, but the pusher 14 reaches the forward end by moving forward by a further t (1-), and the limit switch is activated. Stop ○ At this time, the lock ball of the lock member 24 engages with the four parts 22, and the above! During the forward movement, the engagement wall 45 hits the rear edge 39 of the drawer fitting and the arm 311fr rotates upward and comes off in front of the drawer fitting 64. A wide space of A-a-1-b (55 pieces) is created between the stopper 6 and the stopper 6, and the stopper 6 stands up easily within this space, and when the pusher 14 is subsequently retreated, the stopper 6 stands up easily.
Holds 40 pallets.

Before the hydraulic cylinder 9 is shortened and the pusher 14 moves to the most retracted position, the stop piece 20 moves the bearing member 1 qvcm to completely stop the stopper pushing member 26, and the pusher 14 is moved back.
When it moves backward by =, the limit switch causes the Eri hydraulic cylinder 9 to stop. At this time, the lock ball is in the recess 2.
3VC engages.

(2) Pallet unloading process The movable frame 10 moves forward from the standby state due to the extension of the hydraulic cylinder 9, and first, the front edge 68 of the drawer fitting is moved to the storage shelf 1.
The upper baren) hits the engagement wall 45 of 40a, and the drawer fitting 6
4 to the upper blade while sliding on the engagement wall 45. Then, when the stopper pushing member 26 reaches the position of the stopper 6,
Since the stopper 6 cannot fall down due to the downward contact pressure of the spring 40a, the stopper push member 26 rides on the roller 49 of the stopper 6 and tilts to the position indicated by the chain line in FIG. Before hitting the pallet recess 45, the bushing 14 comes into contact with the pallet contact surface 44, and the pallet 40a
k Move forward.

As a result, the Elistopper 6 becomes capable of being laid down and is laid down by the weight of the stopper pushing wing 26, and the drawer fitting 58 climbs over the engagement wall 45 and descends into the inner side thereof.

Then, when the hydraulic cylinder 9 is shortened, the baren) 4D
a descends while in contact with the bushing 14 due to the descending force due to its own weight, or the free roller conveyor 5 is retracted m
If the pallet 40a cannot descend due to its own weight due to reasons such as being slightly higher than the free roller conveyor 4 of i,
The drawer fitting rear edge roller 9 engages with the engagement wall 45 and the pallet 4
0a k Pull out ○ When the drawer is pulled out, the retaining wall 45 rotates completely above the arm 31 through the pull-out metal fitting 64, but the arm 61 is prevented from rotating by the coil spring 32. Furthermore, since the stopper pushing member 26 is moved back into the pallet recess 46, the stopper 6 does not stand up while the pallet is being pulled out. After the movable frame puller 10 is stopped by a limit switch at the backward end, the drawer fitting 38 is tilted upward and the pallet 40a is taken out.

The present invention has all the above configurations [7. Even if the rotational friction of the rollers of the free roller conveyor of the storage shelf is small, or even if the drawer device has a somewhat high VC stop with respect to the storage shelf,
Storage pallet? There is an effect of being able to actively draw on the drawer device, especially when stopping at the high number/in this case f:
1: The stopper rises quickly, but according to the present invention,
Since the stopper pushing member fully enters the recess of the pallet and pulls out the bar, the stopper is effectively prevented from standing up and the bar can be pulled out smoothly.

[Brief explanation of the drawing]

The drawings show an entire embodiment of the present invention, and FIG. 1 is a schematic elevational view of a lift for carrying out gold mining using the apparatus of the present invention, FIG. 2 is a plan view, FIG. 6 is an elevational view, and FIG. 4 is a plan view of essential parts. , FIG. 5 is an elevational view of the main part, FIG. 6 is a plan view of the pallet, and FIG. 7 is an elevational view of the pallet. 1... Storage shelf, 6... Pallet loading/unloading device, 4.5
・-・Free roller conveyor, 6...Stopper, 7・
...Frame, 9...Drive mechanism, 1D...Movable frame, 14...Putsukuya, 17...Support frame, 18.
... Lot, 19 ... Bearing member, 20.21 ... Stop piece, 22.23 ... Four parts, 24 ... Lock member, 26 ... Stopper push member, 31 ... Arm, 6
4...Drawer metal fitting, 68...Front edge, 39...Rear edge,
40...Pallet, 40a...-Storage pallet, 43
... recess, 44 ... contact surface, 45 ... retaining wall.

Claims (1)

[Claims] A storage device that has a free roller conveyor with an upward slope and a stopper that is biased in the upright direction at the lower end of the conveyor and can be raised up and down, and that the pallets 7 are stored in front and back of each other and have a recess in which the stopper locks in the front part. A pallet loading/unloading device to a shelf includes a frame having a free roller conveyor aligned with the same slope as the free roller conveyor at the front, and a movable frame guided and moved in parallel with the free roller conveyor by a full drive mechanism on the frame. a support frame having a bushing provided at the front end of the movable frame and abutting against the pallet contact surface; and a rod extending rearwardly through a bearing member fixed to the frame and guided and supported by the front part of the movable frame so as to be movable back and forth. , a stopper pushing member which is pivotally supported by the front part of the support frame so as to be completely prevented from tilting downwardly and which can enter into the recess of the knoblet, and a pair of four parts provided on the movable frame and formed on the rod at a predetermined interval t2. A locking member that is removably engaged with either of the ends and moves the stopper pushing member together with the movable frame, and a locking member that is fixed to the rod in front and rear of the bearing member. A stop piece that switches the four parts that engage with the lock member, and a stop piece that protrudes forward from the stopper push member and higher than the pallet engagement wall, and whose rear end is pivotally supported by the stopper push member to prevent downward rotation and apply downward rotational force. The front end of the arm is pivoted to the front part of the arm to limit the vertical movement angle, and at the lower limit rotation position, the slightly inclined front line and the steeply inclined rear edge form a triangular shape, and the rear edge of the arm protrudes downward. It has a drawer fitting and a metal fitting that can be held on the inner surface of the retaining wall, and when the movable frame moves forward, the stopper pushing member protrudes from the button by a dimension smaller than the depth of the pallet recess, and the button comes into contact with the contact surface of the storage pallet. When the front edge of the drawer fitting moves over the retaining wall while tilting the arm upward, the stopper pushing member lowers the stopper, and when the pusher pushes the barrel l-'fr into the storage shelf, the stopper pushing member stops. A device for carrying in and out of a pallet storage rack equipped with all free roller conveyors, characterized in that a rear pusher moves forward by t and projects forward 9 above the pusher pushing member.