JPH11246031A - Roll feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously feed rolls from a pallet to a belt conveyor and to feed the rolls automatically and smoothly to a following process while preventing the rolls from being stacked on the conveyor. SOLUTION: A roll feeder is provided with a pallet 1 for loading a large number of rolls R in an almost parallel placed state, and a belt conveyor 2 continuous to this pallet 1 and placing the rolls R fed from the pallet 1, on a belt to convey them. In this case, the pallet 1 can be tilted and reversed in relation to the belt conveyor 2, and a sensor 4 for detecting the state of the rolls R passing on the belt conveyor 2 is installed in a required position of the upper part of the belt conveyor 2. The inclined reversing angle of the pallet 1 is controlled on the basis of a detection signal of this sensor 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll supply device used for supplying a roll product to a body packaging device, for example.

[0002]

2. Description of the Related Art When a roll product is supplied to a roll packaging device, a stocked roll may be supplied one by one by an operator, or may be supplied by a belt conveyor continuously from a previous process.

In order to supply the stock rolls more efficiently, a large number of rolls are stacked on a pallet, and the pallet is turned upside down and placed on the belt conveyor to pack the rolls. A method of supplying one by one is considered.

[0004]

However, in the method of reversing the pallet described above, a plurality of rolls may roll out of the reversed pallet and pile up on a belt conveyor. There is a problem that the roll cannot be smoothly supplied to another conveyor.

[0005] The present invention addresses the above-mentioned situation, tilts and reverses the pallet, and controls the tilt of the pallet by a sensor that detects the status of the roll on the belt conveyor, so that the roll can be moved to the next step. The purpose is to provide smooth automatic supply.

[0006]

A roll supply apparatus according to the present invention, which meets the above objects, comprises a pallet on which a number of rolls are juxtaposed in parallel and stacked, and a roll supplied from the pallet following the pallet by a belt. In a roll supply device having a belt conveyor for placing and transporting the pallet on the belt conveyor, the pallet can be tilted and inverted with respect to the belt conveyor, and a condition of a roll passing over the belt conveyor at a required position above the belt conveyor is detected. A sensor is installed, and the inclination reversal angle of the pallet is controlled based on a detection signal of the sensor.

Further, in the above-mentioned apparatus of the present invention, the sensor has a lever arm disposed so as to allow one roll to pass between the sensor and the conveyor conveying surface. When the conveyed roll passes without contacting this lever arm, the tilting movement of the pallet is strengthened, and when the rolls are stacked and contact the lever arm, the tilting movement of the pallet is preferably stopped. is there.

[0008]

According to the roll supply apparatus of the present invention, it is possible to continuously and automatically supply a large amount of rolls to the next step by inverting the pallet. It is possible to detect the state of the roll and control the inclination of the pallet to appropriately control the supply amount of the roll to the conveyor.

In the apparatus according to the second aspect of the present invention, even if rolls are stacked on the belt conveyor, for example, in two stages, the rolls are temporarily stopped by the lever arm, and the rolls are sent out one by one from the lower side of the arm by the conveyor. The sensor detects the contact between the lever arm and the roll to stop the pallet from tilting. Then, while the inclination of the pallet is stopped and the supply of rolls is stopped, the stacked rolls are sequentially sent out from below the lever arm by a belt conveyor, and when the rolls are reduced to the extent that they do not contact the lever arm, The sensor increases the tilt of the pallet and supplies the roll again on the belt conveyor.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described.

FIG. 1 is a side view showing a roll supply apparatus according to an embodiment of the present invention. The apparatus includes a pallet 1 on which a large number of rolls R are loaded substantially in parallel, and a roll R of the pallet 1.
Conveyor 2, which conveys the pallets 1 in a direction substantially perpendicular to the axis, a pallet inverting machine 3 that inclines the pallet 1 and feeds the roll R onto the belt conveyor 2, and is formed above the belt conveyor 2 and controls the pallet inverting machine 3. And a sensor 4.

The pallet 1 is formed in a box shape having an open upper surface, and is fixed to a rotating table 6 of the pallet inverting machine 3 by a fixing arm 5. The pallet inverting machine 3 has the L-shaped turntable 6 which is pivotally attached to a base 7 of the belt conveyor 2 so as to be able to turn vertically around a turning fulcrum 8. ing. The turning table 6 is connected to a cylinder 9 pivotally attached to a base 7 below the turning fulcrum 8, and the pallet 1 is moved by the cylinder 9 to the side of the belt conveyor 2 as shown in FIG. To be tilted.
The belt conveyor 2 is configured such that a roll R is fed from the rotation fulcrum 8 via a transfer plate 10 and the motor 1
1, the roll R is conveyed rightward in the figure.

On the other hand, the sensor 4 is provided with a lever arm 12 which is spaced from the conveying surface of the belt conveyor 2 by a distance slightly larger than the diameter of the roll R. The lever arm 12 allows one roll to be conveyed below the arm 12 by the above-mentioned interval, while blocking the rolls R stacked in two or more stages on the upper part of the arm 12 and combining the rolls R stacked in a step shape into one stage. They are arranged.

The lever arm 12 has an intermediate portion 13 having a pin 1
4, the upper part is rotatably supported, and the upper part is in contact with a stopper 16 and is elastically supported by a tension spring 15. That is, when the roll R hits the lower part of the lever arm 12, the lever arm 12 slightly rotates against the spring 15,
Is detected. Then, by the ascending position sensor 17,
When the rolls R conveyed by the belt conveyor 2 do not stack and do not come into contact with the lever arm 12, the rising position sensor point 17 causes the pallet inverting machine 13 to increase the inclination of the pallet 1, When the rolls R are stacked and come into contact with the lever arm 12,
The pallet inverted machine 3 is stopped to stop the pallet from tilting and rotating. The roll R conveyed by the belt conveyor 2 passes through a second conveyor 18 as shown in FIG.

As described above, in the roll supply apparatus according to the embodiment of the present invention, a large amount of rolls R can be automatically and sequentially supplied to the next process by inverting the pallet 1 in a tilted manner. The condition of the roll R on the conveyor 2 is detected by the sensor 4 provided on the conveyor 2, and the inclination of the pallet 1 can be controlled to appropriately control the amount of the roll R supplied to the conveyor 2.

Further, in the apparatus of the above embodiment,
For example, even if the rolls R are stacked in two stages on the belt conveyor 2, the rolls R are temporarily stopped by the lever arm 12, the rolls R are sent out one by one by the conveyor 2 from under the arm 12, and the sensor 4 The pallet 1 is detected by detecting the contact between the lever arm 12 and the roll R.
Stop tilting. Then, while the tilt of the pallet 1 is stopped and the supply of the rolls R is stopped, the stacked rolls R are moved by the belt conveyor 2 to the lever arms 1.
When the roll R decreases to such a degree that the roll R does not come into contact with the lever arm 12, the sensor 4 reinforces the inclination of the pallet 1 and supplies the roll R again onto the belt conveyor 2.

[0017]

As described above, the roll supply apparatus of the present invention transfers a pallet on which a number of rolls are juxtaposed in parallel and stacked, and rolls supplied from the pallet following the pallet on a belt for conveyance. In a roll feeder provided with a belt conveyor, a sensor for detecting the status of a roll passing over the belt conveyor is installed at a required position above the belt conveyor, and the inclination inversion angle of the pallet based on a detection signal of this sensor. By inverting the pallet, it is possible to automatically and continuously supply a large number of rolls to the next process, and the condition of the rolls on the conveyor is determined by the sensor provided on the belt conveyor. Can be detected and the inclination of the pallet can be controlled to make the supply amount of the roll to the conveyor proper.

In the apparatus according to the second aspect of the present invention, the rolls stacked by the lever arm are aligned in one step, and the roll strength is adjusted by contacting the roll with the lever arm to supply the rolls. It is possible to control the amount appropriately, which has a remarkable effect that the roll can be automatically and smoothly supplied to the next step.

[Brief description of the drawings]

FIG. 1 is a side view showing a roll supply device according to an embodiment of the present invention.

FIG. 2 is a side view showing a pallet and an inverted machine of the apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pallet 2 Belt conveyor 3 Pallet inverting machine 4 Sensor 5 Fixed arm 6 Rotating stand 7 Base 8 Rotating fulcrum 9 Cylinder 10 Transfer plate 11 Motor 12 Lever arm 13 Intermediate part 14 Pin 15 Spring 16 Stopper 17 Sensor 18 Second conveyor 19 Horizontal feed conveyor

Claims (2)

[Claims] 1. A roll supply device comprising: a pallet on which a number of rolls are juxtaposed in parallel and stacked; and a belt conveyer which, following the pallet, places a roll supplied from the pallet on a belt and conveys the pallet. In addition to being capable of tilting and reversing with respect to the belt conveyor, a sensor for detecting the status of the roll passing over the belt conveyor is installed at a required position above the belt conveyor, and the tilt reversing angle of the pallet based on the detection signal of this sensor Roll supply device, characterized in that: 2. The sensor according to claim 1, wherein the sensor has a lever arm disposed with a gap between the conveyor and the conveyor surface such that one roll can pass through. 2. The roll supply device according to claim 1, wherein the tilt movement of the pallets is strengthened when passing through the lever arm without contacting the lever arm, and the tilt movement of the pallet is stopped when the rolls are stacked and contact the lever arm.