JPH0218005Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a roller conveyor in which a plurality of rollers are arranged side by side so as to freely rotate, and more specifically to a conveyor device installed on a weighing device.

(Prior art and its problems) There is an inclined roller conveyor in which a plurality of rollers are arranged side by side so that they can rotate freely, and a roller conveyor is arranged in an inclined manner, and a stopper plate is arranged below. When this inclined roller conveyor conveys a heavy object by its own weight, the object runs out of control due to inertia and collides with the stopper plate, causing the problem that the direction becomes different.

By the way, there is a conventional device with a roller conveyor installed on the weighing scale, but when weighing heavy objects, it is difficult to load and unload the object onto the weighing pan, so Another roller conveyor was arranged so that the worker could transfer the weight to the roller conveyor above the scale for weighing, and after completing the weighing, the worker would move the weight to the next roller conveyor. Therefore, in the above-mentioned apparatus, if the roller conveyor on the scale is simply arranged in an inclined manner, the conveyed object will descend due to its own weight, stop at a predetermined position, and then weigh. It is difficult.

That is, when weighing an object on the roller conveyor with a scale, the strong collision between the object and the stopper plate causes large vibrations of the roller conveyor, prolonging the weighing stabilization time, and reducing the throughput of the scale. There was a problem with the performance decreasing.

(Purpose of the invention) In view of the conventional circumstances as described above, the present invention stops the conveyed object at a predetermined position on the roller conveyor,
It is an object of the present invention to provide a conveyor device capable of performing weighing work stably and quickly.

(Structure) The conveyor device of the present invention to achieve such an objective has a roller conveyor configured by arranging a plurality of freely rotatable rollers in parallel on a measuring instrument, the roller conveyor being orthogonal to the axial direction of the rollers. A stopper plate is provided at the downstream end of the roller conveyor so as to temporarily stop the conveyed object, and a stopper plate is provided protruding parallel to the axial direction of the roller. A conveyance device is provided for conveying the object to be conveyed along the stopper plate, and the roller conveyor is provided with a braking member for braking the rotation of the roller, and the roller conveyor is engaged with the braking member to bring the roller into contact with the braking member. It is characterized by providing a braking force adjustment member that adjusts the pressure.

(Function) According to the above configuration, since the roller conveyor is inclined, the conveyed object descends toward the stopper plate due to its own weight, and the descending speed is controlled by the rotational force of the rollers by adjusting the adjustment member. Since power is applied, it lightly collides with the stopper plate and stably stops at a predetermined position.

(Example) An example of the implementation of the present invention will be described with reference to FIGS. 1 to 3. In the figures, 1 is a roller conveyor, and rollers 3, 3
The roller conveyor 1 is arranged in an inclined manner in a direction perpendicular to the axial direction of the rollers, and a stopper plate 12 is provided at the lower end for temporarily stopping the conveyed object. Stand parallel to the axial direction of the roller.

An auxiliary roller 11 and a belt conveyor 10 are installed in series at the upper end of the roller conveyor 1, so that products can be carried onto the roller conveyor 1.
Further, 15 in the figure is a weighing device, which weighs the products placed on the roller conveyor 1.

The above roller conveyor 1 has belt conveyor 1.
3 and 13, and a pusher 14 is provided protruding from the belt conveyors 13 and 13 to move the products on the roller conveyor 1 to the stopper plate 12.
Transport along the following lines.

Next, the braking mechanism provided at one end of each roller 3 will be explained with reference to FIG. First, one end of the leaf spring 4 is attached below the roller 3 via the mounting plate 5, and the upper end of the leaf spring 4 is formed into a bifurcated shape so as to avoid the pivot 9 of the roller 3 and come into contact with the end surface of the roller 3. do.

Next, a bolt 6 inserted through the side plate 2 is provided so as to press the center of the leaf spring 4. When the bolt 6 is tightened, the force of the plate spring 4 in contact with the roller 3 is increased, and when the bolt 6 is loosened, the force of the plate spring 4 in contact with the roller 3 is increased.
The braking force can be adjusted by reducing the contact force.

In the above embodiment, all the rollers are provided with a braking mechanism, but it is also possible to provide the braking mechanism only on some of the rollers. Further, the braking force of each roller does not necessarily need to be uniform; it is optional, such as increasing the braking force of the lower rollers so that the shock that contacts the stopper plate becomes smaller.

Next, a modification of the braking mechanism will be explained with reference to FIG. 4. In the figure, reference numeral 4' denotes a bearing made of synthetic resin, etc., which receives the pivot 9 and comes into contact with the end surface of the roller 3.

A male thread is formed on the outer periphery of the bearing 4' to fit into a female thread provided on the side plate 2. Tightening the bearing 4' increases the braking force, and loosening the bearing 4' weakens the braking force. The nut 6' is used to prevent the bearing 4' from loosening, and is tightened after adjusting the braking force.

Next, the third embodiment will be explained with reference to FIG.
2 is fixed at one end, the lining belt 22 is stretched upward, and a load 23 is suspended by passing above the roller 3.

Since the control force in the above embodiment is determined by the tension of the lining belt 22, it can be adjusted depending on the magnitude of the load 23.

Next, the fourth embodiment will be described with reference to FIG. Connected to head 33'.

A bolt head 33' is rotatably provided on a bolt 33, and the bolt 33 is passed through the bottom plate 2' and fastened to upper and lower nuts 34, 34' with the bottom plate 2' in between.

That is, in the fourth embodiment, the braking force is adjusted by rotating the nut 34' to loosen it, rotating the nut 34 to move the bolt 33 in and out, and fixing the position of the bolt 33 by the nut 34'. It is something.

To explain the fifth embodiment with reference to FIG. 7, a plate spring 35 is provided below the rollers 3, 3, and the bolt 3
6 is formed so as to pass through the bottom surface 2', and the leaf spring 3
Support the center of 5.

In this embodiment, the contact pressure between the plate spring 35 and the roller 3 is adjusted by rotating the bolt 36, and the braking force is adjusted.

A modification of the above embodiment will be explained with reference to FIG. 8. In this embodiment, the rollers 3, 3 are arranged in a stepped manner, and the pressing force has a V-groove formed in accordance with the height of the rollers 3, 3. A member 37 is provided, and a bar 39 is provided below for support.

A coil spring 38 is fitted onto the outer periphery of the bar 39, and a pin 41 is provided below the bar 39. The braking force adjusting member 40 is provided with a slope that comes into contact with the pin 41, and the braking force can be increased by moving the member 40 to the right in the figure.

(Effects of the invention) Since the present invention is configured as described above, the braking force of the rollers of the roller conveyor can be adjusted according to the weight of the conveyed object by adjusting the adjustment member, and therefore the conveyed object can be set so that it descends on the roller conveyor due to its own weight and lightly contacts the stopper plate.

Therefore, it is possible to prevent a strong collision between the conveyed object and the stopper plate, reduce vibrations of the roller conveyor, shorten the measurement stabilization time when weighing with a scale, and improve throughput. Damage to the conveyed object can be eliminated, and the stopped position of the conveyed object can be made substantially constant.

Thus, the intended purpose can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a three-dimensional view of the first embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a partial front view of the same, and Figs. 4 to 8 show the braking mechanisms of the second to sixth embodiments. FIG. In the figure, 1... roller conveyor, 2... side plate,
3...roller, 4...plate spring, 4'...bearing,
6... Bolt, 6'... Nut, 12... Stopper plate, 22, 32... Lining belt, 23
...Load.

Claims (1)

[Scope of utility model registration request] A roller conveyor consisting of a plurality of freely rotatable rollers arranged in parallel on a scale is installed in an inclined manner in a direction perpendicular to the axial direction of the rollers, and the conveyed object is placed at the downstream end of the roller conveyor. A stopper plate for temporarily stopping the roller is provided protruding parallel to the axial direction of the roller, a conveying device for conveying the object to be conveyed along the stopper plate is provided upstream of the stopper plate, and the roller conveyor is provided with a braking member that brakes the rotation of the roller,
The conveyor apparatus further includes a braking force adjusting member that engages with the braking member to adjust the contact pressure between the roller and the braking member.