JPS5822406B2 - Corner protection material rubbing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically inserting corner protection materials into the square corners of various flat articles such as wall materials, doors, aluminum satsume frames, desk tops, etc. be.

The corners of flat plates such as wall materials are easily damaged during transportation, installation, handling, or storage, so it is necessary to protect these areas.

However, in the past, the insertion of this type of protective material was done manually, which was extremely time consuming and inefficient, and was a major obstacle when implementing an automated packaging line.

Particularly in recent years, as the rise in labor costs has become more serious, there has been a desire to automate the insertion work to save labor and improve efficiency.

The present invention was made in response to the above-mentioned demands, and consists of stopping a flat plate that is continuously carried out from a manufacturing device at a stopper position on a conveyor, and inserting corner protection materials almost equally into the four corners. The corner protection material insertion device of the present invention will be described in detail below with reference to embodiments shown in the drawings.

FIG. 1 shows an example of an article to which a protective material is inserted by the apparatus of the present invention, in which a is a flat plate, b is a flat frame body, and FIG. This figure shows the state in which it is inserted into the corner.

Figure 3 shows one of the corner protection materials used in the device of the present invention.
This is an example, and is a perspective view of a corner protection material assembled from cardboard, thick paper, or the like.

Figure 4 and below are related to the corner protection material insertion device.
Functionally, it is divided into a conveying section A that transports the article 1, an article stopping section B that stops the article 1 at a fixed position for a certain period of time, and a corner insertion section C that inserts the corner protection material 3 into the four corners of the article 1. be able to.

The transport section A transports the article 1 transferred from the production line in the previous process to the stopper 7 of the article stopping section B by belt conveyors 6 on both sides attached to the frame 5, and is synchronized with the production line. The article 1 is temporarily stopped by a variable-speed prime mover 9 and the stopper 7 to discharge the article 1 after the insertion operation is completed, and as is clear from FIGS. 4 and 5, a frame 5 supporting this device It is directly connected to the production line and forms part of the main line of the production process, which connects to the next process, such as the shrink packaging line.

At both ends of the frame 5, there are protruding rotating shafts 10.13, and further, both ends of the rotating shafts 10, 13 are provided with bearings 12, 1.
5, each of which is fixed to the frame 5.

Pulleys 11 are fixed to both sides of the rotating shaft 10, and a rotating shaft 13 is provided approximately parallel to the rotating shaft 10 at a predetermined distance from the rotating shaft 10. Also, at intervals almost equal to the intervals of the pulleys 11,
(2) A pair of V-pulleys 14 for driving the belt are fixed.

A belt 6 is stretched endlessly between the pulleys 11 and 14, and a sprocket 16 is fixed to the rear rotating shaft 13.

A variable-speed motor 9 is provided below where the rotating shaft 13 is located, and the motor 9 and the rotating shaft 13 are connected to each other by a chain 17.
It is driven one rotation through.

When the article 1 transferred from the production line in the previous process reaches the stopper 7 located in the article stopping part B, the prime mover 9 is temporarily stopped and rotated by the detection switch 27 to stop the article 1 in a fixed position and protect the corner. After the material 3 is inserted, an intermittent movement is made to eject the article 1.

The article stopping section B includes a cylinder 8 and a detection switch 27 attached to the rear part of the frame 5 at a distance approximately from the center of the belt 6, and a stopper @2 fixed to the tip of the cylinder 8.
8, a stopper 7, and a stopper hinge plate 18.

When the article 1 reaches the stopper 7, the detection switch 27 connected to the stopper 7 acts, causing the prime mover 9 to stop rotating and stopping the article 1 at a fixed position, and almost at the same time, the article 1 is fixed to the stopper shaft 28. The stopper hinge plate 18 supports the article 1 from below while alleviating the impact and load when the article 1 stops.

At this time, only the stopper 7 protrudes above the belt 6 position of the conveyor toward the conveying section, and this state is maintained until the next insertion operation of the corner insertion part C.

As shown in FIG. 4, the corner insertion portions C are installed at four locations on the base plate 19 at the four corners of the frame 5 parallel to the belt 6, and are linked to the detection switch 27 of the stopper 7. When the article 1 is temporarily stopped at a fixed position, the corner protection members 3 are inserted at the four corners simultaneously.

FIGS. 6 and 7 are enlarged views of the corner insertion portion C, and those installed in four locations have the same structure and the same operation.

That is, a cylinder 21, a slide holder 20, and a pair of left and right slide rods 22 with cam grooves 29 are arranged side by side, and a cam follower 23 and a corner protection material magazine 26 are attached at the tips of the cylinders 21, slide holders 20, and a pair of left and right slide rods 22 with one end attached to each tip of the slide rods 22. There is a pair of upper and lower opening levers 24, 24', and leaf springs 25, 25' are attached to the tips of the opening levers 24, 24'.
It is constructed by fixing the

The cylinder 21 attached to the base plate 19 of the corner insertion part C has a slide holder 20 bent at 90 degrees to form an L-shape at its tip, and a right-angled part fixed to the center of the cylinder 21 in a dogleg shape. In conjunction with the detection switch 27 of the article stop part B, the cylinder 21 pushes out the lowest stacked corner protective materials 3 one by one into the corner protective material magazine 26 using the slide holder 20.
At the same time as the leaf spring at the tip of the opening bar in the front is inserted into the mouth of the corner protector, the slide rod 22, which is arranged in parallel with the cylinder 21 and is interlocked via the connecting piece, is also pushed forward, causing linear movement. However, the cam groove 29 carved in the slide rod 22 and the cam follower 23 engaged with the cam groove 29 rotate in opposite directions, and the upper donkey with one end attached to each tip of the slide rod 22 rotates in opposite directions. -24 is moved upward, and the lower donkey 24' is lowered.

At this point, the tip plate spring 25 of the opening lever 24, 24',
25' spreads out the rounded opening 4 of the corner protection material 3 and pushes the corner protection material 3 into the opposite corner of the article 1 to be inserted.

After that, the opening lever 24°24' and the leaf springs 25, 25
' is just before the corner protection material 3 is inserted into the article 1,
As the slide rod 22 slides forward in the cam groove 29, the opening lever 24 further moves upward, and the other opening lever 24' further descends, causing the leaf springs 25, 25' to close the corner protection material opening 4. It is intended to separate them from each other.

Thereafter, it rests on the cam groove 29 of the slide rod 22 and moves back to its original position.

In addition, the corner insertion portion C is configured so that the interval between the base plates 19 can be adjusted appropriately in the front, rear, left, and right directions as the size of the article 1 changes. Corner detection switch 3 of section C
0, the stopper 7 and stopper hinge plate 18 of the article stopping section B are rotated 90 degrees toward the rear end of the frame 5 by the sliding movement of the cylinder 8, and are brought down to the bottom of the belt conveyor 6 of the conveying section A. The discharge detection switch 31 causes the prime mover 9 to rotate, and the article 2 with the corner protection material 3 inserted therein is conveyed to the next process connected to the conveyance section A.

After the article 2 with the corner protection material 3 inserted passes through,
The stopper 7 also moves back to its original position.

When the next article 1 is transferred, each device restarts the operation described above and repeats the insertion operation.

As described above, according to the present invention, the corner insertion portion C is
Due to the action of the cylinders 21 placed at each of the four corners, the slide holder 20 provided at the tip of the rondo from the cylinder 21
The slide holder 20 and the slide holder 20 are inserted into the opening 4 of the corner protection material 3 at the front opposite to each other. A pair of left and right slide rods 2 connected via a connecting piece and arranged parallel to the cylinder 21
Insert the plate springs 25, 25' at the tips of the open levers 24° 24' mounted on the slide holders 20 and 22, which are connected via the slide holder 20 and the connecting pieces. 22 is advanced, and at this time, the slide rods 22, 22 are rotated in opposite directions by the cam grooves 29, 29 carved in the slide rods 22, 22, and the cam followers 23, 23 that engage with the cam grooves 29, 29. By this rotation, the opening levers 24, 24' attached to the tips of the slide rods 22, 22 open vertically, and the leaf springs 25, 25' at the tips inserted into the mouth of the tube protector 3 open. Since the opening portion 4 is expanded to make it easier to insert the protective material 3 into the article, the protective material 3 can be inserted into the article reliably.

Furthermore, the structure is simple and highly reliable, and it is possible to save the labor of a large number of people compared to the conventional method, making it an extremely capable corner protection material inserting device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a flat plate-shaped article and a flat frame-shaped article, and FIG.
FIG. 3 is a perspective view of the article shown in FIG. 3, and FIG. 3 is a perspective view of the corner protection material. FIG. 4 is a plan view of the corner protection material insertion device. FIG. 5 is also a side view. FIG. 6 is a plan view of the corner insertion portion. FIG. 7 is a front view as well. A: Conveyance section, B: Article stopping section, C
... Corner insertion part, 1 ... Article, 2
・・・－・・・Article with corner protection material inserted, 3...
... Corner protection material, 5 ... Frame, 6
...Belt conveyor, 7...Stopper, 19...Base plate, 20...
・Slide holder, 21...Cylinder, 22
...Slide rod, 23...Cam follower, 24゜24'...Opening lever 125,2
5'...Plate spring, 26...Magazine,
27...Detection switch, 29...Cam groove.

Claims (1)

[Scope of Claims] 1. An article including a fallable stopper 7 installed near the rear end of a conveyor A consisting of a conveyor 6 stretched over a frame 5, and a detection switch 21 connected to the stopper 7. A stop part B, and a stop part B that is transported by the conveyor.
A corner insertion part C is arranged at a position where the corner protection material 3 can be inserted corresponding to the four corners of the flat article stopped at the corner insertion part C. , at the bottom thereof, the detection switch 27
The slide holder 20 is connected to a pair of left and right slide rods 22 and 22 parallel to the cylinder 21 via a connecting piece. At the tip of each slide rod 22, 22, a pair of open levers 24°24' with leaf springs 25, 25' at the tip are attached, and cam grooves 29, 29 are provided in the longitudinal direction, and furthermore, the slide rod The cam grooves 29.29 of 22 are fitted with cam followers 23, 23 provided on the pace plates 1 and 19, and as the slide rods 22.22 move back and forth, the pair of open levers 24, 24 are mutually moved. A corner protection material insertion device characterized by rotating in the opposite direction.