JPS587521B2 - Seat folding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet folding device, and an object of the present invention is to provide a device that can automatically fold the upper part of a soft sheet covering a product by a machine.

Products such as television receivers manufactured in factories are packed in cardboard boxes or other protective boxes before being shipped, but the entire product is wrapped in a thin, soft resin sheet to protect it from dust and moisture. After the clothes are washed, they are stored in the clothes box.

Conventionally, the work of wrapping products in such sheets was performed by humans, but automation of the work by machines is now required to improve work efficiency.

The present invention provides a device that automatically performs a portion of the above-mentioned work, and one embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show the process in which the television receiver 1 is installed.

A suction pad 2 descends to the upper surface of the television receiver 1, attracts it, and lifts it upward.

During this time, a flat cylindrical sheet 4 is wound around a roll 5.
is pulled out by the sheet suction pads 3 and 3a, and the end portion is opened to form a cylindrical shape and enter a standby state.

Next, the television receiver 1 is conveyed to the left, and the seat 4
When it stops at the fixed position above, the sheet suction pads 3 and 3a rise while adsorbing the sheet 4, and the television receiver 1
Cover with sheet 4 from below.

The lower end of the sheet 4 is thermally welded and cut, forming a bag-like shape that separates and rises.

Next, as shown in FIG. 2, the packaging box 6 is positioned below the television receiver 1, and the television receiver 1 wrapped in the sheet 4 is lowered and stored in the packaging box 6. be done.

When stored, the suction pad 2 returns from the vacuum state to its original state, stops suctioning, and moves away.

Subsequently, the upper end of the sheet 4 is folded, and this state is shown in FIG.

As shown in FIG. 3, there are four flaps on the top of the packaging box 6. , 8, 9. One of the opposing flaps 9 of 10
, 10 are raised from the lower surface at a certain angle with expansion/contraction ratios of 11 and 12, respectively.

Note that when the television receiver 1 is lowered from above together with the sheet 4, the sheet suction pads 3, 3a, 3b, 3c
The arms 13, 14 supporting the holder are lowered slightly apart.

At the same time, air is blown out from the nozzles 15, 16, 19, 20 provided close to the sheet suction pads 3, 3a, 3b, 3c, causing both upper ends 4a, 4b of the sheet 4 to bulge outward. shall be.

When the television receiver 1 comes into contact with the bottom of the packaging box 6 and the insertion is completed, the pair of telescopic rods 17 and 1B extend to close the flap 7.
It goes over the top and unravels into the sheet 4, and just before this unraveling, the suction state of the sheet suction pad 3 is released, so the elastic rods 17, 1B
continues to go straight and folds the top left side of the seat 4 onto the television receiver 1.

At this time, the air that was being blown out from the nozzles 15 and 19 stops, and therefore the folding of the sheet 4 in half is completed as shown in FIG.

Next, fold the remaining half of sheet 4. In this case, the telescopic rod 2 provided on the opposite side of the telescopic rods 17 and 1B
1.22 extends over the flap 8 and contacts the seat 4.

Furthermore, the telescopic rods 21, 22 extend and fold the remaining half of the sheet 4.

FIG. 5 shows the seat 4 in a completely folded state.

Thereafter, the telescopic rods 11, 12, 17, 1B, 21, 22 are moved back, and the stowage box 6 is moved onto the conveyor again with the flaps 7, 8, 9, 10 open.

The pair of telescopic rods 11 and 12 lift the pair of flaps 9 and 10 of the towing box 6 by a certain angle, and air is sprayed from the nozzles 15, 16, 19, and 20 onto both upper ends 4a and 4b of the sheet 4. The ends 4a and 4b of the sheet 4
By inflating the sheet 4 along these flaps 9 and 10, the upper part of the seat 4 can be accurately folded as shown in FIG.

FIG. 6 shows the structure of the telescopic rod 11.

This telescopic rod has a shape similar to that of a Rondo antenna, and has pipes 23, 24, 25, and 26 of different diameters connected in multiple stages.A wire 27 is connected to the most advanced pipe 26, and this wire 27 is connected to a drum 28. The central shaft 29 of this drum 28 is rotated by a motor, and the wire 27
It expands and contracts.

This allows the telescoping rods 11 and 12 to easily repeat expansion and contraction.

After folding the top surface of the sheet 4, the search box 6 is transported to the next process with the flap left open, and a cushioning material is inserted into the gap between the product and the search box, and the flap is closed. The product will be shipped as soon as possible.

As described above, according to the present invention, the work of folding the upper surface of the sheet covering the product can be automated by a machine, so work efficiency is greatly improved and costs are reduced.

Furthermore, when folding the upper surface of the sheet, the flaps can be folded accurately by blowing air onto both upper ends of the sheet and inflating the upper part of the flap along the pair of flaps raised at a certain angle.

[Brief explanation of drawings]

1 and 2 are block diagrams of a seat folding device according to an embodiment of the present invention, FIG. 3 is a perspective view of the device, FIG. 4 is an enlarged view of the main parts of the device, and FIG. 5 is the same device. FIG. 6 is a perspective view of the device showing the sheet in a folded state, and FIG. 6 is a sectional view of the telescopic rod used in the device. 2...Suction bat, 3.3a, 3b, 3c...
... Sheet suction bat, 4 ... Sheet, 6
...Storage box, 7, 8, 9, 10...Flap, I1. 12,17.1B,21,22... Telescopic rod, 1
5, 16, 19, 20... nozzle.

Claims (1)

[Claims] 1 A bag-shaped sheet that covers the stored items and has an opening above, and a bag-like sheet that stores the stored items covered by the sheet and has 4
a storage box having two flaps, a means for holding a pair of opposing flaps of the storage box open at a certain angle, and a means for holding one of the other pair of flaps of the storage box. means extending beyond the other of the pair of flaps to fold the upper half of the sheet onto the upper surface of the stored object; A sheet folding device comprising a means for folding the sheet onto the upper surface of a stored object, and a means for blowing air onto the sheet when folding the sheet to bring the sheet into close contact with the pair of flaps opened at a certain angle.