JPS6313890B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for conveying cardboard produced in a cardboard box making machine.

It is desirable for this type of transport device to have a simple mechanism, but it should be possible to easily take out the cardboard being transported for inspection, etc., as well as to prevent the cardboard from lifting during transport and to prevent the glued portion from peeling off. It is necessary to meet the following requirements.

An object of the present invention is to provide a corrugated board conveying device that can appropriately convey manufactured corrugated cardboard.

A feature of the corrugated board conveying device according to the present invention is that it includes a conveyor disposed between predetermined positions, and a free roller juxtaposed generally parallel above the conveyor, making the free roller adjustable up and down and in a direction perpendicular to the conveyor; The free roller can be lifted quickly if necessary.

Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, this conveying device basically consists of a conveyor, in this embodiment, a roller conveyor 1 and a free roller disposed generally parallel to the top of the conveyor. It consists of 2 columns. The conveyor 1 is installed substantially horizontally on the machine frame 3 and placed at a predetermined position. Each roller of the conveyor is driven by a motor 5 via a suitable transmission member 4. Further, the free rollers 2 may be provided as one group, but preferably they are divided into a plurality of groups as shown in the figure, and in this case, the free rollers of each group are rotatably attached to the support frame 6. and each inlet end is inclined upwardly to facilitate the introduction of the cardboard. As is clear from FIG. 3, the free rollers 2 are preferably arranged in pairs.

A free roller support frame 6 has a plurality of arms 7 so that these free rollers 2 can be adjusted up and down.
Each arm 7 is pivotally fixed to a column 8 at the other end, and a pivoting mechanism for the arm 7 is provided. In the illustrated example, this pivot mechanism comprises a horizontal shaft 10 with a manually operated handle 9 at one end, and a transmission mechanism, e.g. a pair of bevel gears installed in a gear box 11 into which the other end of the horizontal shaft 10 is inserted. It is composed of a vertical shaft 12 which is interlocked with the horizontal shaft 10 and provided along the support column 8, an interlocking shaft 13 to which one end of the arm 7 is pivotally fixed, and a pair of bevel gears 14 and 15 which interlock the vertical shaft 12. Ru. The interlocking shaft 13 is provided on the support column 8 parallel to the conveyance direction of the conveyor 1 .
The arm 7 is pivoted by rotating the interlocking shaft 13 via the horizontal shaft 10, vertical shaft 12, and bevel gear by operating the handle 9, but such an arm pivoting mechanism cannot be achieved by using other mechanisms. Also,
It goes without saying that the operation using the handle 9 may be replaced by automatic operation using an electric system using a motor.

Furthermore, this conveying device is designed so that the position of the two groups of free rollers can be adjusted in the lateral direction, that is, in the direction perpendicular to the direction of conveyance by the conveyor 1. Therefore, a slider 16 is installed on each arm 7 so as to be able to slide freely. The slider 16 is then clamped in place on the arm 7 by the clamp handle 17.
The support frame 6 of the free roller 2 is attached to the slider 1.
6. Preferably, as shown in FIG. 7, the support frame 6 is pivotally fixed to the slider 16 by a pin 6', in which case the free roller 2 maintains a vertical position due to its own weight, or swings to follow the corrugated board being conveyed. Note that wheel conveyors 18 are provided on both sides of the conveyor 1, if desired.

Furthermore, the device includes an actuation device connected to the pivot end of the arm 7 for rapidly raising the arm 7;
As shown in FIG. 3, one preferred form of the actuating device comprises a weight 20 connected to the arm 7 as a rotating device for the arm, and a device for releasing the arm 7 from the pivot mechanism. The fourth device
As shown in FIGS. 6 to 6, the link mechanism 23 includes a connecting pin 21 and an operating section such as a release pedal 22 at one end for operating the connecting pin 21. In this embodiment, the pin 21 is attached to a mounting member 24 fixed to the interlocking shaft 13, the arm 7 is fixed to a bearing 25 fixed to the interlocking shaft 13, and the connecting pin 21 is partially inserted into the hole of the bearing 25. The arm 7 is connected to the pivot mechanism by being inserted into the pivot mechanism. Weight 20 is connected to bearing 25. The pin 21 is always pushed toward the insertion side by the spring 26. The upper end of the link mechanism is a cam 27, and the end 21' opposite to the insertion part of the pin 21 engages with the cam 27.
When the pedal 22 is depressed, the pin 21 is pulled out, the arm 7 becomes rotatable relative to the interlocking shaft 13, and the weight 2
lifted by 0.

Note that it is clear that this actuating device can be constructed using other mechanisms, for example, by using an air cylinder 28 as a rotation device as shown in FIG. 8. In this case, the air cylinder 28 is attached to the mounting member 29 of the bearing 25.
When the air cylinder 28 is retracted, the arm 7 pivots upward and the free roller 2 is lifted.

During operation, the gap between the conveyor 1 and the free roller 2 is set to an appropriate value based on the thickness of the cardboard and the conveyance speed. Therefore, by operating the handle 9, the interlocking shaft 13 is rotated, and the arm 7 is pivoted via the mounting member 24, the connecting pin 21, and the bearing 25, and the height of the free roller 2 supported at the tip of the arm is adjusted. . In addition, as shown in FIG. 3, the free roller 2
is preferably applied to the glued part of the cardboard A. Therefore, loosen the clamp handle 17 and move the slider 16 along the arm 7 according to the shape of the cardboard to an appropriate position as shown in FIG. Clamp.

The corrugated boxes manufactured by the box making machine are sent in a partially overlapping state, but they are pushed down at the feeding end of the free roller 2, and in the pushed down state, they are sent between the conveyor 1 and the free roller 2. They are picked up and transported. Therefore, during conveyance, the glued portions of each cardboard A are maintained in a good adhesion state and are prevented from peeling off. In addition, the creases at the bent portions are also kept in a folded state, and are passed on to the next process, for example, the gearbox 1.
Sent to 9.

In addition, in order to inspect or remove damaged cardboard during transportation, all you have to do is step on the release pedal 22, which pulls out the connecting pin 21 via the link mechanism 23, which releases the connection between the arm 7 and the interlocking shaft 13.
The arm 7 pivots upwards due to the weight 20 and rapidly lifts the free roller 2. Therefore, the cardboard can be easily taken out. Incidentally, if a plurality of support frames 6 are provided and the free rollers 2 are divided into a plurality of groups, only one area of the free rollers 2 can be lifted without lifting the entire free roller, and the operation becomes easier.

In the embodiments described above, a roller conveyor is used as the conveyor 1, but this conveyor may be another type of conveyor, such as a belt conveyor.

As described above, according to the present invention, the cardboard is conveyed while being held between the conveyor and the free rollers thereon. Therefore, the cardboard is subjected to a certain degree of pressure, and the glued portion can be appropriately pressed, making the gluing even stronger and preventing the cardboard from lifting up. Furthermore, the cardboard boxes being transported can be easily taken out for inspection or to eliminate defective products.

[Brief explanation of the drawing]

Fig. 1 is a front view of a corrugated board conveying device according to an example of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an end view, and Fig. 4 is an end view partially omitted to show the free roller lifting mechanism. , Figure 5 is A of Figure 2.
FIG. 6 is a cross-sectional view showing details of part B in FIG. 4, FIG. 7 is an end view showing a preferred support structure for the free roller, and FIG. 8 is a diagram showing another form of the actuating device. FIG. In the figure, 1... conveyor, 2... free roller,
6...Free roller support frame, 7...Arm, 9
...Handle, 10, 11, 12, 13, 14,
15...Arm drive mechanism, 16...Slider, 2
0, 21... Actuation device, 22, 23... Release mechanism.

Claims (1)

[Scope of Claims] 1. A conveyor installed between the manufactured cardboard boxes to convey them from a predetermined position to another position; A large number of free rollers arranged parallel to each other, and one end pivoted to an interlocking shaft parallel to the conveying direction of the conveyor, which is provided on a support provided along the conveyor to support the free rollers. It includes an arm, and a slider that is slidably provided along the arm and clamped at an appropriate position on the arm, and the support frame of the free roller is swingably connected to the slider, and the support frame of the free roller is swingably connected to the slider. a pivoting mechanism of the arm, which is connected to the arm and pivots the interlocking shaft via a transmission mechanism; A corrugated board conveying device comprising an actuating device consisting of a release device for making the shaft pivotable and a device for pivoting the interlocking shaft so that the arm pivots upwardly. 2. The device according to claim 1, wherein the conveyor is a roller conveyor. 3. A corrugated board conveying device according to claim 1, wherein the free roller is divided into a plurality of zones. 4. A corrugated board conveying device according to claim 1, wherein the infeed end of the row of free rollers is inclined upward to facilitate introduction of the corrugated board. 5. The corrugated board conveying device according to claim 1, wherein the device for rotating the interlocking shaft is a weight.