JPH0520646Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a device that sequentially sends out a large number of synthetic resin containers that have been stored and transported in a folded state, unfolded into an assembled state, and sent out one after another.

(Prior Art) Conventionally, containers have been used to transport luggage and products, but recently, collapsible containers have been widely used for convenient storage when not in use.

This collapsible container can be placed in the 10th container when not in use.
As shown in Figure A, the front and rear plates are folded inward, the side plates are folded in half from the center, and these are stacked on the bottom plate to form a flat plate.To assemble this, as shown in Figure B, Pull up the frame A to make both side plates B and B stand side by side, push down the front and rear plates C and C, and interpose the front and rear plates C and C between both side plates B and B to form an integrated box as shown in Figure 10C. This assembling work is done manually and is inefficient, so recently an automated device has been developed to take out a large number of stacked folded containers from the bottom. , in the order shown in Fig. 10 above, first lifts the upper frame, then stretches both side rods up and down, and pushes the front and rear plates downward. The cylinders and the like are sequentially moved by a predetermined control mechanism.

(Problem that the invention aims to solve) However, the automated device described above uses hydraulic and pneumatic actuators in each part as an operating mechanism, so a device that generates pressure oil and pressurized air is required. The entire device is large in size, making it difficult to use it at any required site, and it has the disadvantages of a complicated structure and high cost, such as a sequence control mechanism for operating these operating mechanisms according to a fixed program.

(Means for Solving the Problem) The above problem is that the upper frame is configured to be hookable by means of a hook-like member, and is pivotally connected to the upper frame and rotates inside the container to cover the side surface of the container. The container, which is composed of a pair of front and rear plates, an upper frame, and a bottom plate that are telescopically connected to each other to form other container sides, is stopped and held at a predetermined position on the conveyor in a folded state. In a folding container assembly device that assembles a container by pulling up a frame and standing up the sides of each container, the container is raised and lowered through an endless chain driven in a fixed direction by a motor in a base frame installed over a conveyor. The hanger has an opening/closing hook for hooking the upper frame, a locking guide for locking the locking rod for locking the bottom surface via a rod push cam, and a locking guide for lifting and lowering the hanger. A stopper guide is provided to operate a stopper that prevents the container from moving forward, and guides a cam that rotates the shaft of the opening/closing hook to guide the opening operation of the opening/closing hook when the hanger is lowered, thereby causing the hanger to rise. A cam guide is provided along the hanger up and down direction so as to maintain the closing action of the opening/closing hook at the time of the hanger,
A push mechanism that protrudes downward from inside the hanger, and has a push bar at its tip that abuts the front and rear plates and rotates at a specific angle to spread the front and rear plates downward as the hanger moves upward. The present invention can be solved by a folding container assembly apparatus, which is equipped with the above-mentioned motor and assembles the container by raising and lowering the hanger.

(Example of the invention) An example of the invention will be explained with reference to the drawings.
This invention is used by being attached to a drive roller conveyor 1 that conveys a folding container a, as shown in FIG. A box-frame-shaped hanger 5 is provided which repeatedly moves up and down by engaging with an endless chain 4 that constantly moves in a fixed direction by a deceleration motor 3 installed in the frame, and the container a fed by the conveyor 1 is placed on this hanger 5. The upper frame is pulled upward by the handler 5, and assembly is performed via various mechanisms linked to the hanger 5. The shape of the upper frame of the container may be any shape that allows the tips of the opening/closing hooks 9, 9 to be caught; for example, as shown in FIG. It can be configured to project like a flange.

This hanger 5 is formed as a box frame-like member that moves up and down by engaging with a hanger guide 6 attached to the support portion of the base frame 2, and as is clear from FIG. When lowering, the locking guides 7, 7 should come into contact with the locking mechanism 13 provided on the lower edge of the base frame 2, and the rear ends of both side edges should also come into contact with the stoppers 12 provided on the base frame 2. Stopper guides 8, 8 are provided to protrude outward, and a pair of parallel opening/closing hooks 9, for example, four opening/closing hooks 9, for engaging with the upper frame of the container a and pulling the upper frame upward, are provided on the inside of both side edges, respectively. Two pieces are attached to each shaft 14.

On the other hand, as shown in FIG. 1, the base frame 2 has a cam guide 10 on one front side for opening and closing the opening/closing hooks 9, 9, and a cam guide 10 for opening and closing the opening/closing hooks 9, 9 on the upper side of the inside, which lowers the front and rear plates of the container a, and presses down the front and rear plates of the container a. Push mechanism 1 to be pushed into
1, or a stopper 12 located below on one side of the rear surface to stop the fed container a, and a lock mechanism 13 located at the center of both lower edges to lock the upper edge of the bottom plate of the container a to prevent the container a from being lifted up.
are attached to each.

As described above, the hanger 5 is pulled upward by hooking the opening/closing hooks 9, 9 into the recesses (or jaws) provided in the upper frame of the container a when descending. As shown in Fig. 3, these opening/closing hooks 9, 9
4 and 14 and are connected by a connecting rod 15, and are normally closed by a spring 16.The shaft 14 is connected by a cam 17 projecting from the tip of a crank provided on one of the shafts as shown in FIG. Opening is performed at the same time by rotating clockwise, and this rotation is performed by engaging the cam 17 with the cam guide 10 of the base 2. As shown in FIG. 4, this cam guide 10 is made so that its upper end 18 is tilted only to one side by a spring, and when the hanger 5 is lowered as shown in FIG. 4A, the cam 17 is guided to the inclined upper end 18 of the cam guide 10, the shaft 14 is turned clockwise in the figure, the left and right opening/closing hooks 9 are opened, and the cam 17 is further lowered and removed from the cam guide 10. The opening/closing hooks 9, 9 are closed and the upper frame concave portion of the container a is pinched and locked from the left and right sides. Next, as shown in FIG. 4B, when the hanger 5 rises, the cam 17
rises without engaging the cam guide 10, pushes up the upper end 18 of the cam guide 10, and passes upward in the locked state. Therefore, the opening/closing hooks 9, 9 do not open and pull up the upper frame of the container a.

Next, the locking guides 7, 7 provided on the hanger 5 and the locking mechanism 13 provided on the lower edge of the base frame 2.
To explain the relationship between the lock release lever 20 and the lock release lever 20 as shown in FIG. The locking bar 21 is pivotally supported and the upper end is locked to the lock release lever 20.
These locking bars 2 hang down so that they can move up and down.
As shown in FIG.
It is designed to lock the proximal end of the The lock rods 22, 22 are pushed by the rod push cams 23, 23, which are pivotally supported by the base frame 2, against the spring 24, and their flange portions 25 are pushed toward the container a, after which they are biased by the spring 33. Tip part 2
2' is designed to restrain the upper edge of the bottom plate of the container a (FIG. 11), and while the container is being restrained, it cannot return because the locking bars 21, 21 are located at the base end. The rod push cams 23, 23 rotate according to the lowering of the hanger 5 by the locking guides 7, 7 attached to the hanger 5, and push the locking rods 22, 22 inward, and at the same time the locking bar 21 is rotated. It falls and becomes locked, and remains in that state even after the hanger 5 is raised. Now, when the hanger 5 rises while holding the upper frame of the container A by the opening/closing hooks 9, 9 and reaches the container assembly height, the lock release levers 20, 20 abut against the locking guides 7, 7 of the hanger 5 and move upward. As a result of being rotated and pulling the locking bars 21, 21 upward, the locking rods 22, 22 are returned to their original positions by the spring 24, and the lock is released.

The hanger 5 further includes stopper guides 8, 8.
are provided, and stoppers 12, 12 provided on the base frame 2
However, this stopper 1
2 is formed of a pair of left and right fan-shaped plates whose upper ends are supported by the base frame 2, as shown in FIG. It is pressed down by the stopper guides 8, 8, rotates, and assumes the position shown by the chain line in the figure, thereby preventing the container a from moving forward.

Next, the push mechanism 11 provided above the base frame 2 will be explained.
As shown in FIG. 8, two push levers 27, 27 in the front and rear are provided from the upper part of the base frame 2 so as to be rotatable about the upper end, and each of the push levers 27, 27 has a push roller 28 at the lower end. It is constantly pulled by a spring 29 and held at a constant opening degree via appropriate stopper pins 30, 30. With this configuration, the container a is pulled up via the hanger 5, and the front and rear plates stacked on its upper surface abut against the push rollers 28, 28 (Fig. 8A), and as the container a continues to rise, the front and rear plates It is pushed open downward (same B),
In this way, it is pushed between both side plates, and the assembly of container a is completed (C).

(Function, Effect) This invention has the above-mentioned structure, and when the hanger 5 starts to descend, the stoppers 12, 12 are moved downward by the stopper guides 8, 8 and protrude, and the container a fed into the base frame is Stop. When the hanger 5 further descends and rotates the rod push cams 23, 23 provided on the base frame 2, the lock rods 22, 22 move to restrain and lock the upper edge of the bottom plate of the container a. In this way, when the hanger 5 reaches the bottom dead center, its opening/closing hooks 9, 9 are opened to the container a.
The container a is locked to the upper frame, and as the hanger 5 rises, the container a is stretched upward, and the push rollers 28, 28 come into contact with the front and rear plates, and the container a is further lifted up by the hanger 5. When the hanger 5 further rises, the push mechanism 1 inside the base frame 2
1 operates, its push rollers 28, 28
assembly of container a is completed by pushing down the front and rear plates of the container and pushing it between both side plates, and then as the hanger 5 descends, container a is released from the opening/closing hooks 9, 9 and lowered onto the conveyor.
It advances forward and is taken out by the conveyor 1.

In this embodiment, in order to ensure the opening operation of the container, as described above, the spring 24 biases the lock lock 22 in the unlocking direction, the lock bar 21 presses the lock lock from above, and the hanger 5 moves upward. Although the structure includes a locking mechanism 13 consisting of a lock release lever 20 that lifts the locking bar by engagement with the locking guide 7, the container opens so that the bottom plate remains below when the top frame is lifted. , this locking mechanism 13 can also be omitted.

The operations are carried out in the above order, and the folding container is assembled continuously.As mentioned above, in this invention, all of these operations are carried out by an endless chain 4 that moves in a fixed direction by a deceleration motor 3. This is done mechanically in conjunction with the repeated lifting and lowering of the hanger 5, so there is no need for an actuator for each operation in conventional devices, and there is no need for a control device for each operation, so it can be made extremely inexpensively and compactly. It has many advantages such as easy installation. The lifting and lowering of the hanger 5 can also be used to operate other attached equipment. FIG. 9 shows, as an example, a feeding device that feeds containers a into the base frame 2 one by one. That is, a feed plate 32 is provided that swings via a push bar 31 that moves back and forth by a guide provided on a hanger 5 that moves up and down within the base frame 2, and is moved on the conveyor 1 by the front and rear hooks of this push bar 31. Container a is sequentially inhibited and released. In this way, according to the present invention, the assembly of the container is completed by simply raising and lowering the hanger 5 using one drive source, so the number of drive sources is minimized and the size of the device is reduced. Not only can this be avoided, but all operations can be completed with a single lifting and lowering operation of the hanger, making it possible to extremely speed up assembly and improve assembly work efficiency.

[Brief explanation of drawings]

Figures 1 to 8 show an embodiment of the device of this invention, where Figure 1 is an overall perspective view, Figure 2 is a perspective view of the hanger, Figure 3 is a front view of the opening/closing hook, and Figure 4 is a perspective view of the hanger.
Figures A and B are explanatory front views showing the movement of the opening/closing hook. Figure 5 is an oblique view of the lock release lever, Figure 6 is an explanatory front view of the locking mechanism, Figure 7 is a front view of the stopper, and Figures 8A, B and C are side views showing the operation of the push mechanism, FIG. 9 is an explanatory side view showing an example of the container feeding device, and FIGS. 10 A, B, and C are perspective views showing the order of assembling the folding container. FIG. 11 is an explanatory side view of the proximal end of the locking mechanism. 1...Conveyor, 2...Base frame, 3...Motor, 4...Endless chain, 5...Hanger, 7...
...Lock guide, 8...Stopper guide, 9...
...Opening/closing hook, 10...Cam guide, 11...Push mechanism, 12...Stopper, 13...Lock mechanism, 17...Cam, 20...Lock release lever, 21...Lock bar, 22...Lock lock , 23... Rod push cam, 27... Push bar, 28... Push roller, a... Container.

Claims (1)

[Scope of utility model registration request] In an assembling device for folding containers, a container is assembled by stopping and holding a folded container at a predetermined position on a conveyor, in which an upper frame is configured to be hooked by a hook-shaped member, a pair of front and rear plates pivotally attached to the upper frame and rotating inside the container to form the container side, and both sides that form the other container side by connecting the upper frame and the bottom plate telescopically, and then pulling up the upper frame and erecting each of the container side faces. The device has a hanger 5 that repeatedly rises and falls via an endless chain 4 driven in a fixed direction by a motor 3 in a base frame 2 that is installed across a conveyor 1, and the hanger 5 has an opening and closing hook 9 for hooking the upper frame, a lock rod 22 for locking the bottom face, and a rod push cam 23.
A lock guide 7 is provided for locking the container through the locking hook 9, and a stopper guide 8 is provided for operating a stopper 12 for preventing the container from moving forward as the hanger 5 is raised and lowered.
a cam guide 10 arranged along the hanger lifting direction so as to guide a cam 17 which rotates a shaft 14 of the hanger 5 to guide the opening action of the opening and closing hooks when the hanger is lowered and to maintain the closing action of the opening and closing hooks when the hanger is raised, a push mechanism 11 which protrudes downward inside the hanger 5 and has push bars 27 at its tip which come into contact with the front and rear plates respectively and rotate at a specific angle when the hanger is raised, thereby pushing the front and rear plates downward and apart, and the hanger 5 is raised and lowered by the motor 3 to assemble a container.