JPH04112128A - Case loading device - Google Patents

Abstract

PURPOSE:To simply hold collared cases and load them on a pallet in the layer state by liftably providing a holding device having a pair of side arms moving multiple aligned collared cases to a center holding arm side and returning them to the original position. CONSTITUTION:Two collared cases 30 aligned at an interval L are pushed by a pusher to one side of an aligning device, then two cases 30 are carried in, and four cases 30 are aligned. A lift device 4 is lowered, a center holding arm 27b is lowered between the interval L, and side holding arms 27a, 27c are lowered to side faces of the cases 30. The interval between the side arms 27a, 27c is shrunk by air cylinders 15a, 15b, and four cases 30 are held by the holding arms 27a-27c. The lift device is lifted, the cases 30 are moved to the side opening section of a basket wheel type pallet arranged on the side and mounted on the pallet, and the lift device 4 is retreated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a case stacking device, and in particular, the present invention relates to a case stacking device, and in particular, a case stacking device in which a plurality of flange cases each having a flange-like upper edge portion of an article storage container are arranged in a row. The present invention relates to a case stacking device suitable for stacking cases one by one at the same time inside a cage-shaped truck.

[Prior Art] In a series of processes such as physical distribution, ie, sorting, transfer, and transportation of articles, a bag case having a flange on the upper edge is widely used for convenience in carrying and handling. When transporting a plurality of these spitting cases containing desired items at once, for example, a plurality of spitting cases carried by a conveyor or the like are laid out on a trolley, and then layered in the same way. In some cases, the work involves stacking multiple layers. In such cases, the reality is that conventionally most of the work has been done manually, without relying on mechanical power.

In addition, this bristle case has irregularities formed on the sides, so when storing the cases, the cases fit into each other and can be stored in a small space.When in use, the irregularities make it possible to store items even when stacked. It is constructed in such a way that it can avoid crushing.

[Problems to be solved by the invention] As mentioned above, in the past, all the box-shaped containers were stacked on the basket-shaped trolley by hand, so when the weight of the spitting case was heavy or the quantity was too large, It is difficult to handle when there are many containers, and the work is even more troublesome and complicated because the positions of the unevenness and grooves on the side of the case are taken into consideration and the loads are stacked to prevent shifting by securing them. Ta.

As mentioned above, the reasons why mechanization has been difficult in the past, despite the problems of a considerable burden on workers, heavy labor, and inefficiency, are as follows: (a) In order to prevent the flange case from shifting inside the shaped trolley, it is extremely difficult to fit the irregularities on the sides of the flange case in terms of positioning using a simple machine. In other words, unlike conventional palletizers, the stacking case is simply lifted with a fork, inserted into a basket-shaped trolley, and then the fork is pulled out and the case is dropped. , positioning was extremely difficult.

(b) The gap between the side wall of the cage-shaped cart and the collar case is small, and if the cage-shaped cart has an intermediate shelf, the gap at the top is also small, so the device with the gripping function is There is very little room to enter the inside of the bogie.

(c) A robot-type system that loads spittle cases one by one into a basket-shaped cart has low processing capacity.

Therefore, the inventors of the present invention proposed a device as shown in Japanese Patent Application No. 63-56442 to solve the above problem. However, subsequent research and development has led to some problems.

First, the structure of the gripping device, especially the structure of the fork portion for engaging the tail portion of the case, is complicated. For this reason, it is not only difficult to further reduce the gap between the side wall of the cart and the brim case, but also the gap between the cases, and there are many problems with maintenance.

In addition, the pallet feeding device has a chain-based structure, is complex and large, and generates a lot of noise during operation.

Furthermore, the structure of the pallet supply device that supplies multiple loose cases to the cage-type trolley is a structure that uses a chain as described above, and has a configuration in which multiple pushers are connected in series on the trolley track. However, since the track path is long and a large space is required, there are still issues in terms of workability.

The present invention solves the above-mentioned problems, allows a large number of box-shaped containers such as brimmed cases to be stacked on a basket-shaped trolley, etc. in a short time, accurately, and has a simple structure and easy-to-use case stacking system. The purpose is to provide an attached device.

[Means for Solving the Problems] The object of the present invention is to provide an alignment device for arranging a plurality of flanged cases one by one, a gripping device for simultaneously gripping one tier of flanged cases arranged on the alignment device, In a case loading device comprising an elevating device for raising and lowering the gripping device to a required height and a positioning device for installing a basket-shaped cart with only one side open at a spitting case loading position, at least one pair of gripping devices are provided. The side holding arms are located below the aligned one-stage brim part of the case, and move approximately horizontally from the side of the case toward the center, so that the side holding arms are positioned below the brim part. The positioning device is configured to engage and grip one stage of the spitting case at the same time, and the positioning device is equipped with a cart pusher that reciprocates on a track slightly longer than the cart, and the cart pusher is configured to hold the leading case that has already been positioned. It is equipped with two forward and backward pressing parts that can simultaneously engage the rear hook of the truck and the front hook of the truck following the truck, and is configured to simultaneously send out the leading truck and position the following truck. This is achieved by a case loading device characterized by the following.

Hereinafter, one embodiment of the present invention illustrated in the drawings will be described in detail.

[Embodiment] Fig. 1 shows a cage-shaped cart, that is, one side is open and three sides are closed. This is an embodiment of a case stowage device c, hereinafter simply referred to as "stowage device-1", which performs stowing.

This loading device consists of a portal frame 26 having a plurality of supports.
, in which a conveyor 25 for transporting the flying case 30 is provided, and a cage-car type valet 6 is provided on the other side.
Part 1 is a positioning device that moves the case seven steps to the case loading position. - A kit supply device 7 is installed adjacently.

The direction of the conveyor 25 may be changed in order to prevent the objects contained in the spit cases 30 ↓ from fitting together so as to press and crush each other when the spit cases 30 are successively stacked one above the other. A reversing device 2 is provided which can be rotated by 180 degrees.

Regarding this reversing device 2, refer to No. 21 later.

As will be described in detail below, the structure is such that the spitting case 30 can be lifted from the conveyor 25 and its direction can be reversed, and instructions for reversing can be given, for example, by a bar code display (not shown) provided on the side of the spitting case 30. This can be carried out as appropriate using a detection device that reads (omitted).

On the other hand, the pallet supply device 7 includes a barn/pusher 18 (carriage pusher) for carrying the cage-car type valet 6 to the loading position, a front stopper 23a for positioning,
A rear stopper 23b, a front positioning arm 31a, a rear positioning arm 3], b, etc. are provided.

Inside the gate-shaped frame 26, there is a third slot for aligning the spitting cases 30 sent from the conveyor 25.
As is clear from the alignment device 3 shown in detail in Figures a and b, especially in Figure 4, there are two gripping devices 5 and a portal frame 26 capable of simultaneously gripping and loading a plurality of round cases 30. The gripping device 5 is
A lifting device 4 for raising and lowering is provided.

The overall structure of the stowage device has been described above, and next, each device constituting the stowage device will be described.

First, the reversing device 2 will be described with reference to FIGS. 1 and 2. The rotating plate 2a and the reversing frame 2b are rotated with the flange case 30 placed thereon, and the rotating plate 2a and the reversing frame 2b are rotated. It consists of a rotary cylinder 2C, an air cylinder 2d that moves up and down, a motor M1 that drives the conveyor, a drive mechanism, etc.

Next, the structure of the alignment device 3 will be explained.
, b, stoppers 12a and 12b stop the spitting case 30 conveyed on the conveyor 11.
, a pusher 10 that pushes the two flange cases 30 toward the pallet supply device 7 side at once, a stopper 12c that restricts the movement of the flange cases 30 by the pusher 10,
Furthermore, the pusher 10 is comprised of a cylinder 10a, etc., which drives the pusher 10 in a reciprocating motion in the left-right direction (FIG. 3).

Note that the cylinder 10a is fixed at a predetermined position on the pedestal.

As shown in FIGS. 4 and 5, the lifting device 4 includes a gate-shaped frame 26 having a rectangular frame shape, and a gripping device 5, which will be described below, for holding and lifting it to a desired height. frame 4
As shown in FIG. 5, this frame 4A is driven by, for example, a motor M2, and its two corners are held horizontally by rails provided on two supports of the frame 26, and are guided up and down. It has become so.

The gripping device 5 has 3 parts projecting in the direction of the pallet feeding device 7.
Book holding arms 27a, 27b, 27c, frame 4A
The support fork 27A is provided with a support fork 27A that is held on the lifting device 4 via a support fork 27A, and the supporting fork 27A is configured such that the holding arm 27 is horizontally moved out and away from the lifting device 4 along the frame 4A by a motor (not shown) (imaginary shown in FIG. 4). (Indicated by a line.)
will be moved. In addition, holding arms 27a, 27b, 27c
Of these, the center holding arm 27b is fixed, but the pair of side holding arms 27a, 27c are arranged so that the distance between the two side holding arms 27a, 27c can be narrowed or widened in the horizontal direction by air cylinders 15a, 15b. Configured to move.

As shown in FIG. 1, the pallet supply device 7 is equipped with a pair of trackways 7a for guiding the wheels of the cage-car type pallet 6. Between the trackways 7a, there is provided a pair of tracks 7a for guiding the wheels of the cage-car type pallet 6. A pallet pusher 18 has a rear pusher pin 18b which is a first pushing part that moves the pallet to the loading position, and a front pusher pin 18a which is a second pushing part which hooks the lower part of the preceding cage car type pallet 6 and transports it to the discharge position. , a rear pusher pin 18b, a front stopper 23a that locks the cage-car type pallet 6 so that it does not pop out by itself, a rear stopper 23b, and a front positioning arm 3 that positions the cage-car type pallet 6 accurately.
1a, a rear positioning arm 31b, etc.

As shown in FIG. 6, the pallet pusher 18 has a front pusher pin 18a at its front end and a rear pusher pin 18b at its rear end, and is configured to be moved by a rodless cylinder 20.

The rear pusher pin 18b has the function of engaging the front hook 21a protruding from the bottom of the pallet and moving the basket car type pallet 6 to the set position.On the other hand, the front pusher pin 18a has already been set at the front end. It functions to send out the car-shaped pallet 6 from the set position. Both the pusher pins lea and 18b are members consisting of an upright portion A and a weight portion B, which are rotatably pivoted;
When the pallet pusher 18 returns to the standby position (left end in the figure), even if the upright portion A comes into contact with the cage-car type pallet 6, at that time, it rotates so as not to hinder the return operation and immediately returns, The cage-car type pallet 6 is now in a state where it can be pressed.

Hereinafter, the operation and effect of the stowage device of the present invention will be explained.

The spitting cases 30 are continuously conveyed on the conveyor 25. A bar code is displayed on one side of the case 30 to indicate the orientation of the case 30 when loaded.

If there is another case with a pot on the path of the case 30, the first stopper 51 provided in front of the reversing device 2 is moved upward as shown by the arrow in FIG. It protrudes so as to be locked to the case 30, and the brim case 30 is appropriately stopped. In this way, each of the bristle cases 30 is moved forward at a constant interval, and the bristle cases 30 are sequentially placed on the reversing device 2.

The reversing device 2 performs reversing based on the above barcode display.
The non-reversal is performed, but when the reversal is performed, the second stopper 52 is raised to wait for the arrival of the spitting case 30. In the case of non-reversal, the second stopper 52 does not rise and allows the flanged case 30 to pass through as it is.

To explain the reversal of the spitting case 30, after the spitting case 30 hits the second stone bar 52 and stops, the rotary plate 2a is raised by the air cylinder 2d, and then the spitting case 30 is placed on the rotary cylinder 2c. Rotate the rotary plate 2a by 180 degrees. Thereafter, when the rotary plate is lowered and the second stopper 52 is lowered, the flanged case 30 moves forward in the direction of the alignment device 3.

Note that the first flattened case 30 (the left flattened case in FIG. 3a) does not need to be reversed, so it moves forward on the conveyor 25 and stops when it hits the stopper 12a of the alignment device 3. Then, the stopper 12b rises, and the second flattened case 30, whose direction is reversed by the reversing device 2 as necessary, hits the stopper 12b and stops. That is, at this point, the two loose cases 30 are aligned in the alignment device 3 connected to the conveyor 25 in a state where they are positioned by the stoppers 12a and 12b.

What should be noted here is that the distance between the first and second flat cases 30 is set to be L4. That is, during stacking, which will be described later, the center holding arm 27b is inserted into this interval (distance L) and then moved toward the center by the site holding arm 27a%27c. It is set to the extent that it can be inserted.

Next, the pusher 10 is driven by the air cylinder 10a,
The pallet supply device 7 simultaneously feeds the two spit cases 30.
Push it out until it hits the stopper 12c. If we look at this effect in Figure 3, we can see that the balls 30 that were aligned on the rollers 11 in the alignment device 3 are pushed from the left side to the right side by the punonya 10, and the alignment device 3 The top of the roller 11 becomes empty again.

Subsequently, the third collar case 30 is stopped by the stopper 12a in the same manner as the first collar case 30, and the fourth collar case 30 is stopped by the stopper 12b in the same manner as the second collar case 30. Next, the third and first brim are removed by the pusher 10.
The pusher case 30 is pushed out, and the pusher 10 is returned to its original position when it hits the first and second case dO4. Therefore, along with the first and second flanged cases 30 that were pushed out earlier, four flanged cases are aligned on the alignment device 3.

Here, the lifting device 4 and the gripping device 5, which were waiting above, are lowered.

A pair of site holding arms 27a explained with reference to FIG.
The spacing between 27C is 1-30 brim part 3
After the upper part of the holding arm 27 has descended to the -F side of the flange part 30a of the flap case 30, the lifting device 4 is lowered. stop, then side holding arm 27
a and 27c until they come into contact with the sides of the collar case 30.

After this contact occurs, the side holding arms 27a and 27C are moved in the direction in which the two loose cases 30 approach the center holding arm 27b. Then, it stops with a slight gap left between the center holding arm 27b and the brim case 30.

In this state, when the elevating device 4 and the gripping device 5 are raised as shown by the imaginary lines in FIG.
a is supported at the upper part of the holding arm 27.

On the other hand, in the pallet supply device 7, the rear stopper 23b is raised before the preceding cage car type pallet 6 is positioned within the pallet supply device 7. Then, the next cage car type pallet 6 is manually moved to the pallet supply device 7, in other words, the subsequent cage car type pallet 6 is moved to the track path 7a.
Move to standby state to put it on.

In this case, the pallet pusher 18 has already moved to the vicinity of the entrance of the pallet supply device 7, as shown by the imaginary line in FIG. 6, and is waiting for the subsequent cage car type pallet 6 to arrive. When the succeeding cage car type pallet 6 arrives at the entrance of the pallet supply device 7, the pallet front hook 21 provided at the front bottom of the cage car type pallet 6
a (provided at a position symmetrical to the pallet rear hook 21b) is the rear pusher bin 18 of the pusher 18;
b in the direction of travel and knock it down to open the rear pusher bin 18b.
located in front of. At this time, the rear pusher bin 18b
After it falls down, it moves back to its original state as described above, so that it can be engaged with the front part hook 21a of the bullet.

Further, in this case, the subsequent cage car type pallet 6 is restricted from moving forward by the rear stopper 23b, and is on standby with the rear pusher bin 18b pushing out the pallet front hook 21a from the rear position.

Next, when the predetermined loading of the open case 30 onto the preceding cage-car type pallet 6 is completed, the rear stopper 23b
At the same time, the front stopper 23a is lowered, and the positioning arms 31a and 31b for positioning the front part of the preceding cage-car type pallet 6 are opened.

Subsequently, due to the movement of Pare Ntobunosha 18,
When the rear pusher pin 18b pushes out the pallet front hook 21a of the following pallet cage car type 6, this pallet cage car type 6 moves on the pair of trackways 7a from the entrance to the vicinity of the exit, and the front bottom of the cage car type pallet moves to the front. When it comes into contact with the stopper 23a, it comes to a stopped state.

Note that the front pusher pin 18a of the pallet pusher 18
pushes out the pallet rear hook 21b and delivers the preceding (first) cage car type pallet 6 to the outside of the pallet supply device 7.

In this case, immediately after the rear bottom of the following pallet passes through the rear stopper 23b, the front stopper 23a and the rear stopper 23b simultaneously rise, and the front positioning arm 31a is activated to move the pallet that has been introduced. Waiting for the arrival of the car-shaped pallet 6. When the cage car type pallet 6 arrives, the rear positioning arm 31b rotates from the rear of the cage car type pallet 6 to accurately fix the cage car type pallet 6.

The above-mentioned rotation of the rear positioning arm 31b takes into consideration the case where the cage car type balent 6 does not arrive at the predetermined position.

At this point, the pallet pusher 18 is returned to its original position near the entrance of the pallet supply device 7.

Next, the gripping device 5 that grips the four flat cases 30
The holding arm 27 moves horizontally in the direction of the cage table type pallet 6 waiting in the pallet supply device 7. When the holding arm 27 is moved to a predetermined position, the holding arm 27 is lowered so that the four loose cases 30 are lowered onto the bottom shelf of the basket car type pallet 6.

Then, open the side holding arms 27a, 27c slightly, pull them toward the alignment device 3, return the holding arms 27 to the original position of the lifting device 4, and open the side holding arms 27a, 27c to the first opened position. do it like this. In this state, the gripping device 5 is raised to an appropriate position for gripping the case 30 with a jar to be loaded on the second stage, and waits for the arrival of the case 30 with a jar on the second stage.

By repeating the above operation, it is possible to stack the four flat cases 30 in five tiers.

On the other hand, in the pallet supply device 7, the above-mentioned one
Before the loading of the th cage-car type pallet 6 is completed,
The second cage car type pallet 6 is roughly set manually. After the loading of the first cage car type balent 6 is completed, the above-mentioned operations such as lowering the front stopper 23a and the rear stopper 23b and opening the front positioning arm 31a and the rear positioning arm 31b are repeated. This allows for rapid and continuous loading.

As described above, it is possible to quickly and automatically load a large number of loose cases 30 without using any manual labor, and thus it is possible to improve the efficiency of the loading operation.

[Effects of the Invention] The case stacking device of the present invention includes a pair of side holding arms that move a plurality of loose cases aligned in a desired direction toward the center holding arm and return them to their original positions. A gripping device, an elevating device that drives the gripping device up and down, and a pallet supply device that supplies and positions a cage-car type pallet with one end open for stacking the spittoons. Cases are stacked in layers on cage-car type pallets.

Therefore, according to the case loading device of the present invention, a plurality of loose cases can be gripped by simply horizontally moving the rod-shaped side holding arm of the gripping device, so the structure of the gripping device is extremely simple and maintainability is improved. Not only can the grip case be accurately gripped, but since each holding arm is simply a rod-shaped structure, each holding arm can be made smaller than before (particularly narrow configuration), making it easy to fit into narrow spaces. Stowage becomes possible.

Further, according to the present invention, the pallet supply device that sets the cage-car type pallet on which the spitting cases are loaded at a predetermined position has a structure having a trackway that is only slightly longer than the length of the cage-car type pallet. As a result, the space of the device can be saved.Moreover, two pusher bins (pressing parts) are provided on one valent pusher operated by a Rotters cylinder, and the preceding cage car type valent (
Because it is possible to simultaneously send out the pallet (which has already been set) and introduce the following cage-car pallet (which is to be set), accurate and efficient operation is possible, and the drive speed is faster than that of conventional chain-driven pallets. The sound decreases;
Moreover, speeding up is easy and work efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the case stacking device of the present invention, FIG. 2 is a side view showing the structure of a reversing device used in the device shown in FIG. 1, and FIGS. b) is two side views in different directions showing the structure of the alignment device used in the device shown in FIG. 1, FIG. 4 is a perspective view showing the schematic structure of the gripping device and lifting device according to the present invention, and FIG. A schematic side view to show the gripping operation and elevating operation in the device of the present invention, FIG. 6(a)
and (b) are a plan view and a side view showing the structure of the bullet supply device. (Symbols in the figure) 2... Reversing device 3... Aligning device 4... Lifting device 5... Gripping device 6... Basket car type pallet 7... Bullet supply device 7a... Trackway 11 ...Rollers 12a, 12b, 12c...Stoppers 15 of the alignment device
a, 15b...Air cylinder 1 day...Pallet pushers 18a, 18b...Pusher bins 21a, 21b...Front and rear hooks 23a, 23
b...Stopper 26 of pallet 1lff...Gate frame 27...Holding arms 27a, 27c...Side holding arm 27b...Center holding arm 30...Brim case (3 others) No. Figure diagram

Claims (1)

[Claims] An alignment device that aligns multiple spit cases one by one,
A gripping device that simultaneously grips one stage of spit cases arranged on the alignment device, a lifting device that raises and lowers the gripping device to a required height, and a cage-shaped cart with only one side open. In a case loading device equipped with a positioning device installed at a case loading position, the gripping device is located below the collar of one stage of brimmed cases in which at least a pair of side holding arms are aligned, and The positioning device is configured to move approximately horizontally in the direction to engage the lower side of the flange part and simultaneously grip one stage of the flange case, and the positioning device is a dolly that moves back and forth on a track slightly longer than the dolly. The cart pusher includes two forward and backward pressing parts that can simultaneously engage the rear hook of the preceding cart which has already been positioned and the front hook of the cart following the cart, and A case loading device characterized in that it is configured to simultaneously perform delivery and positioning of a subsequent truck.